Patent Publication Number: US-2023152025-A1

Title: Refrigerator

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a National Stage application under 35 U.S.C. § 371 of International Application No. PCT/KR2020/013151, filed on Sep. 25, 2020, which claims the benefit of Korean Patent Application No. 10-2020-0046113, filed on Apr. 16, 2020. The disclosures of the prior applications are incorporated by reference in their entirety. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to a refrigerator having a refrigerating compartment and a freezing compartment that respectively provide storage spaces and having an ice-making compartment provided in a refrigerating compartment door. 
     BACKGROUND ART 
     Generally, a refrigerator is a home appliance that is provided to store various foods or beverages for a long time by cool air generated by circulation of a refrigerant according to a refrigeration cycle. 
     The refrigerator is configured of one or a plurality of partitioned storage compartments for cooling an object to be stored. Each of the storage compartments may be opened or closed by a rotary type door, or may be ejected and retracted in a drawer manner. 
     In particular, the storage compartments may include a freezing compartment for freezing the object to be stored and a refrigerating compartment for refrigerating the object to be stored. In addition, the storage compartments may include at least two freezing compartments or at least two refrigerating compartments. 
     In recent refrigerators, an ice-making compartment is provided in a refrigerating compartment door so that a user can take out ice without opening the freezing compartment. 
     That is, cool air has passed through an evaporator in a cabinet is supplied to the refrigerating compartment door through a cool air duct the ice-making compartment. When the refrigerating compartment door is closed, the cool air is supplied to the ice-making compartment through a connection passage provided in the refrigerating compartment door by the cool air duct for the ice-making compartment. 
     The above refrigerator is proposed in various related art, such as Korean Patent No. 10-1639443, Korean Patent Application Publication No. 10-2009-0101525, and Korean Patent No. 10-1659622. 
     In particular, the above-described refrigerator having the ice-making compartment at the refrigerating compartment door is configured to selectively supply cool air to the refrigerating compartment, the freezing compartment, and the ice-making compartment by using a single evaporator. 
     However, the refrigerator according to the above related art has a problem in that sufficient cool air is not supplied to the refrigerating compartment or the freezing compartment due to the configuration in which cool air is supplied to the three chambers using the single evaporator. 
     In particular, in the conventional refrigerator, a refrigerating compartment side grille fan assembly supplying cool air to the refrigerating compartment side is configured to supply the same amount of cool air to opposite spaces in the refrigerator. However, although the amounts of cool air required for port ions in the refrigerating compartment are different from each other, since cool air is uniformly discharged to all portions regardless of the amount of cool air required for the portions, the temperatures of the portions in the refrigerating compartment are ununiform. 
     That is, a portion where cool air is supplied excessively compared to a required amount of cool air and a portion where cool air is provided insufficiently compared to a required amount of cool air are mixed in the refrigerating compartment. Accordingly, a temperature difference between the portions of the refrigerating compartment occurs. 
     For example, in a structure in which an ice-making compartment is provided in one refrigerating compartment door of two refrigerating compartment doors, the refrigerating compartment door (ice-making compartment side refrigerating compartment door) on a side where the ice-making compartment is located has a direct cooling effect provided by the ice-making compartment, so it is sufficient for an ice-making compartment side refrigerating compartment door to receive only a relatively small amount of cool air compared to the refrigerating compartment door at the opposite side. However, since the refrigerator is configured to uniformly supply cool air to the opposite sides where the two refrigerating compartment doors are located, the temperature for each portion in the refrigerating compartment is inevitably ununiform. 
     Conventionally, a passage supplying cool air from the freezing compartment to the refrigerating compartment is configured as a structure integrally formed with the freezing compartment or the refrigerating compartment. Therefore, maintenance thereof is not easy, and when changing a refrigerator model, it is difficult to use common components in the refrigerator. 
     DISCLOSURE 
     Technical Problem 
     Accordingly, the present disclosure has been made keeping in mind the above problems occurring in the prior art, and an objective of the present disclosure is to provide a refrigerator capable of reducing an unnecessary amount of cool air supplied to an ice-making compartment side refrigerating compartment door and capable of supplying sufficient cool air to a refrigerating compartment door opposite thereto. 
     Another objective of the present disclosure is to provide a refrigerator capable of allowing cool air blown from a freezing compartment side grille fan assembly to be smoothly supplied to a refrigerating compartment side grille fan assembly and capable of facilitating maintenance thereof. 
     Another objective of the present disclosure is to increase the number of components commonly used regardless of the model of refrigerator. 
     TECHNICAL SOLUTION 
     In the refrigerator of the present disclosure in order to achieve the above objectives, a freezing compartment side grille fan assembly and a refrigerating compartment side grille fan assembly may be configured to receive cool air through a connection passage. 
     The refrigerator of the present disclosure may be configured such that the refrigerating compartment side grille fan assembly supplies different amounts of cool air to spaces of opposite sides in a refrigerating compartment. Whereby, cool air may be sufficiently supplied to the refrigerating compartment and a freezing compartment, and an ice-making compartment by a single evaporator, and the amount of supplying cool air for each portion in the refrigerating compartment may vary. 
     In the refrigerator of the present disclosure, an upper grille panel and a duct unit of the refrigerating compartment side grille fan assembly may be configured as separate structures to be separated from each other. Whereby, only the duct unit may be replaced depending on the type of refrigerator, so the upper grille panel may be used commonly. 
     The refrigerator of the present disclosure may have a blocking plate at a rear surface of the duct unit. Whereby, the temperature of cool air flowing along a refrigerating compartment side cool air passage is prevented from being increased. 
     In the refrigerator of the present disclosure, an upper end of the upper grille panel may have a cool air discharge guide. Whereby, cool air flowing along the refrigerating compartment side cool air passage may be discharged to an upper space in the refrigerating compartment. 
     In the refrigerator of the present disclosure, a protrusion may be formed by being extended from a lower portion of the duct unit. Whereby, cool air supplied from the freezing compartment side grille fan assembly may be supplied to two refrigerating compartment side cool air passages that are divided to opposite sides of the rear surface of the duct unit. 
     In the refrigerator of the present disclosure, a lower connection duct may be provided in the protrusion of the duct unit. Whereby, connection or separation of the connection passage may be performed easily. 
     In the refrigerator of the present disclosure, the lower connection duct may be removably coupled to at least one portion of the protrusion and the connection passage. Whereby, the refrigerating compartment side grille fan assembly may be separated from the connection passage. 
     In the refrigerator of the present disclosure, a passage gate may be provided in a cool air outlet side of the lower connection duct. Whereby, when the lower connection duct is separated from the refrigerating compartment side grille fan assembly, it is possible to perform maintenance of the passage gate. 
     In the refrigerator of the present disclosure, a lower grille panel that partitions the protrusion from the inside of the refrigerating compartment may be provided. Whereby, unintentional separation between the protrusion and the connection passage is prevented. 
     In the refrigerator of the present disclosure, a recovery duct for the refrigerating compartment is configured such that a first end thereof is connected to a lower portion of a rear surface of the lower grille panel and a second end thereof is connected to a cool air inlet side of the evaporator. Whereby, cool air recovered from the refrigerator may be supplied to the refrigerating compartment, the freezing compartment, or the ice-making compartment after moisture in the cool air is removed by the evaporator. 
     In the refrigerator of the present disclosure, the cool air passage for the refrigerating compartment may include a first cool air passage for the refrigerating compartment, a second cool air passage for the refrigerating compartment, and a third cool air passage for the refrigerating compartment. Whereby, cool air introduced through the third cool air passage for the refrigerating compartment may be dispersively supplied to the first cool air passage for the refrigerating compartment and the second cool air passage for the refrigerating compartment. 
     In the refrigerator of the present disclosure, the passage gate may be located in the third cool air passage for the refrigerating compartment. Whereby, maintenance of the passage gate may be facilitated. 
     In the refrigerator of the present disclosure, the second cool air passage for the refrigerating compartment may be configured to receive a larger amount of cool air than the first cool air passage for the refrigerating compartment. Whereby, compared to the space where the ice-making compartment is located in the refrigerating compartment, the space opposite to the space having the ice-making compartment may receive more cool air, and the temperature in the refrigerating compartment may be uniformly maintained over the entire portions therein. 
     In the refrigerator of the present disclosure, a cool air outlet side of the third cool air passage for the refrigerating compartment may be inclined or rounded such that cool air flows toward the second cool air passage for the refrigerating compartment. Whereby, more cool air may be supplied to the second cool air passage for the refrigerating compartment. 
     In the refrigerator of the present disclosure, a transverse width of the second cool air passage for the refrigerating compartment may be configured to be wider than a transverse width of the first cool air passage for the refrigerating compartment. Whereby, more cool air may be supplied to the second cool air passage for the refrigerating compartment. 
     In the refrigerator of the present disclosure, a second cool air outlet for the middle compartment formed in the second cool air passage for the refrigerating compartment may be configured to discharge more cool air compared to a first cool air outlet for a middle compartment formed in the first cool air passage for the refrigerating compartment. 
     The refrigerator of the present disclosure may include an upper connection duct. Whereby, cool air flowing along the cool air passage for the refrigerating compartment may be directly supplied to a front space in the refrigerating compartment. 
     The refrigerator of the present disclosure may include a cool air outlet connected to an upper surface of the freezing compartment side grille fan assembly. Whereby, cool air may be supplied to the refrigerating compartment side grille fan assembly through the connect ion passage connected to the cool air outlet. 
     In the refrigerator of the present disclosure, as the cool air outlet goes upward, the passage may be gradually increased in size. Whereby, sufficiently more cool air may be supplied to the refrigerating compartment side grille fan assembly. 
     Advantageous Effects 
     As described above, the shared passages are provided in the refrigerator of the present disclosure, so that the cool air passage for the freezing compartment and the cool air passage for the ice-making compartment are shared with each other. Accordingly, even when the freezing fan and the ice-making fan are operated at the same time, sufficient cool air can be supplied to the freezing compartment, and when only the ice-making fan is operated, the back flow of cool air from the freezing compartment can be prevented. 
     The refrigerator of the present disclosure is configured such that the open port ion of the cool air out let side of the shared passage does not face the freezing fan module. Accordingly, there is an effect that the cool air provided from the cool air passage for the ice-making compartment through the shared passage does not interfere with the flow of the cool air flowing in the cool air passage for the freezing compartment. 
     The refrigerator of the present disclosure is configured such that the lower shared passage is formed in a lower surface (the second circumferential passage rib) of the installation portion of the ice-making fan module, and the extension passage extended to a lower compartment of the freezing compartment is additionally formed in the shroud. Therefore, sufficient cool air can be supplied to the lower compartment of the freezing compartment. 
     In particular, the drainage hole is additionally formed in the extension passage, and the lower shared passage is formed by penetrating between the second circumferential passage rib and the wall surface of the shroud. Accordingly, there is an effect that condensed water or moisture in the installation portion of the ice-making fan module can be smoothly discharged to the outside of the freezing compartment. 
     The refrigerator of the present disclosure is configured to have the guide formed on each wall surface in the cool air passage for the freezing compartment, so that the cool air flowing in the cool air passage for the freezing compartment can be supplied differently for each portion in the freezing compartment. Accordingly, there is an effect that the freezing efficiency can be improved. 
     The refrigerator of the present disclosure is configured to supply the cool air to the cool air passage for the refrigerating compartment of the refrigerating compartment side grille fan assembly through the cool air outlet formed in the upper wall surface of the cool air passage for the freezing compartment and the connection duct connected to the cool air outlet. Accordingly, there is an effect that the single evaporator can selectively supply cool air to the refrigerating compartment, the freezing compartment, and the ice-making compartment. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG.  1    is a perspective view showing an external appearance of a refrigerator according to an embodiment of the present disclosure; 
         FIG.  2    is a perspective view showing a state in which a refrigerating compartment door at an ice-making compartment of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  3    is a front view schematically showing an external structure of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  4    is a front view showing an inner structure of the refrigerator according to the embodiment of the present disclosure in a state in which two refrigerating compartment doors and two freezing compartment doors are opened; 
         FIG.  5    is a front view showing the inner structure of the refrigerator according to the embodiment of the present disclosure in a state in which the two refrigerating compartment doors and the two freezing compartment doors are omitted; 
         FIG.  6    is a side section view showing the inner structure of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  7    is an enlarged view of part A in  FIG.  6   ; 
         FIG.  8    is a perspective view showing an example of a passage gate of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  9    is a perspective view from the rear of the refrigerator, the view showing a state in which an outer casing is removed for showing an installation structure of a cool air duct for the ice-making compartment, a recovery duct for the ice-making compartment, a connection duct, and a recovery duct for a refrigerating compartment; 
         FIG.  10    is a main-part perspective view showing a state of either side wall surface in a freezing compartment for showing a connection structure of the recovery duct for the ice-making compartment of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  11    is a rear view showing the refrigerator according to the embodiment of the present disclosure in a state in which the outer casing is removed for showing an installation structure of the connection duct and the recovery duct for the refrigerating compartment; 
         FIG.  12    is a side view showing the refrigerator according to the embodiment of the present disclosure in a state in which the outer casing is removed for showing the installation structure of the cool air duct for the ice-making compartment, the recovery duct for the ice-making compartment, the connection duct, and the recovery duct for the refrigerating compartment; 
         FIG.  13    is a state view schematically showing a passage structure for supply and recovery cool air to the ice-making compartment of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  14    is a main part view from the rear of the refrigerator in a state of removing the outer casing, the view showing a rear side of the freezing compartment of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  15    is a perspective view from the front of the refrigerator, the view showing a refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  16    is a perspective view from the rear of the refrigerator, the view showing the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  17    is a front view showing the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  18    is a rear view showing the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  19    is a perspective view from the rear of the refrigerator, the view showing a state in which a blocking plate of the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure is removed; 
         FIG.  20    is a rear view showing the state in which the blocking plate of the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure is removed; 
         FIG.  21    is a perspective view from the front of the refrigerator, the view showing an upper grille panel of the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  22    is a perspective view from the front of the refrigerator, the view showing a state in which a lower grille panel is additionally provided in the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  23    is a perspective view from the rear of the refrigerator, the view showing the state in which the lower grille panel is additionally provided in the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  24    is a front view showing the state in which the lower grille panel is additionally provided in the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  25    is a rear view showing the state in which the lower grille panel is additionally provided in the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  26    is a perspective view from the front of the refrigerator, the view showing a freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  27    is an exploded-perspective view from the front of the refrigerator, the view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  28    is a perspective view from the rear of the refrigerator, the view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  29    is an exploded-perspective view from the rear of the refrigerator, the view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  30    is a front view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  31    is a rear view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  32    is a rear view showing a grille fan of the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  33    is a front view showing a shroud of the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  34    is an enlarged view of part B in  FIG.  33   ; 
         FIG.  35    is a rear view showing the shroud of the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure; 
         FIG.  36    is a state view showing a cool air flow in the freezing compartment side grille fan assembly when the temperature in the refrigerating compartment of the refrigerator of the present disclosure is controlled; 
         FIG.  37    is a state view showing a cool air flow in the refrigerating compartment side grille fan assembly when the temperature in the refrigerating compartment of the refrigerator of the present disclosure is controlled; 
         FIG.  38    is a side section view showing a cool air flow when the temperature in the refrigerating compartment of the refrigerator of the present disclosure is controlled; 
         FIG.  39    is a state view showing cool air flows in a connection duct and a recovery duct for the refrigerating compartment when the temperature in the refrigerating compartment of the refrigerator of the present disclosure is controlled; 
         FIG.  40    is a state view showing a cool air flow in the freezing compartment side grille fan assembly when the temperature in the freezing compartment of the refrigerator of the present disclosure is controlled; 
         FIG.  41    is a state view showing a cool air flow in the refrigerating compartment side grille fan assembly when the temperature in the freezing compartment of the refrigerator according to the embodiment of the present disclosure is controlled; 
         FIG.  42    is a state view showing a cool air flow in the freezing compartment side grille fan assembly when the freezing compartment and the ice-making compartment of the refrigerator according to the embodiment of the present disclosure are operated at the same time; 
         FIG.  43    is a state view showing a cool air flow in the freezing compartment side grille fan assembly when the temperature in the ice-making compartment of the refrigerator according to the embodiment of the present disclosure is controlled; 
         FIG.  44    is a side view showing a cool air flow when the temperature in the ice-making compartment of the refrigerator according to the embodiment of the present disclosure is controlled; and 
         FIG.  45    is a state view schematically showing a cool air flow in the ice-making compartment when the temperature in the ice-making compartment of the refrigerator according to the embodiment of the present disclosure is controlled. 
     
    
    
     MODE FOR INVENTION 
     Hereinbelow, an exemplary embodiment with respect to a refrigerator of the present disclosure will be described in detail with reference to accompanying  FIGS.  1  to  45   . 
       FIG.  1    is a perspective view showing an external appearance of the refrigerator according to the embodiment of the present disclosure.  FIG.  2    is a perspective view showing a state in which a refrigerating compartment door at an ice-making compartment of the refrigerator according to the embodiment of the present disclosure.  FIG.  3    is a front view schematically showing an external structure of the refrigerator according to the embodiment of the present disclosure. 
       FIG.  4    is a front view showing an inner structure of the refrigerator according to the embodiment of the present disclosure in a state in which two refrigerating compartment doors and two freezing compartment doors are opened.  FIG.  5    is a front view showing the inner structure of the refrigerator according to the embodiment of the present disclosure in a state in which the two refrigerating compartment doors and the two freezing compartment doors are omitted.  FIG.  6    is a side section view showing the inner structure of the refrigerator according to the embodiment of the present disclosure. 
     As shown in the drawings, the refrigerator according to the embodiment of according to the embodiment of the present disclosure includes a cabinet  10  having a refrigerating compartment  11  and a freezing compartment  12 , and a refrigerating compartment door  20   a  having an ice-making compartment  21 . The refrigerating compartment  11  receives cool air from a refrigerating compartment side grille fan assembly  1 . The ice-making compartment  21  is located in either refrigerating compartment door  20   a  and receives cool air from a freezing compartment side grille fan assembly  2  together with the freezing compartment  12 . 
     In addition, the cool air is generated in a single evaporator  40  and then is supplied to the refrigerating compartment  11 , the freezing compartment  12 , and the ice-making compartment  21  through the refrigerating compartment side grille fan assembly  1  and the freezing compartment side grille fan assembly  2 . 
     In particular, the refrigerating compartment side grille fan assembly  1  selectively receives cool air from the freezing compartment side grille fan assembly  2  by a connection passage  54  and a passage gate  60 . The refrigerating compartment side grille fan assembly  1  is configured to supply different amounts of cool air to a space having the first refrigerating compartment door  20   a  and a space having a second refrigerating compartment door  20   b  of spaces of opposite sides in the refrigerating compartment  11 . 
     Accordingly, sufficient cool air may be supplied to the refrigerating compartment  11 , the freezing compartment  12 , and the ice-making compartment  21  by the single evaporator  40 , and the entire area in the refrigerating compartment  11  may be maintained at a uniform temperature through different supply of cool air considering the situation of each portion in the refrigerating compartment  11 . 
     The refrigerator according to the embodiment of the present disclosure will be described in detail as follows. 
     First, the refrigerating compartment  11  is a storage compartment provided to refrigerate the object to be stored, and the freezing compartment  12  is a storage compartment provided to freeze the object to be stored. 
     The refrigerating compartment  11  is provided in an upper space in the cabinet  10 , and the freezing compartment  12  is provided in a lower space in the cabinet  10 . 
     The cabinet  10  may consist of an outer casing  10   a  forming an external surface of the refrigerator and two inner casings  10   b  and  10   c  forming an inner surface of the refrigerator. 
     In the two inner casings  10   b  and  10   c , an upper inner casing  10   b  (hereinbelow, upper inner casing refers to “inner casing for refrigerating compartment”) is a portion providing the refrigerating compartment  11 , and a lower inner casing  10   c  (hereinbelow, lower inner casing refers to “inner casing for freezing compartment”) is a portion providing the freezing compartment  12 . The inner casing  10   b  for the refrigerating compartment and the inner casing  10   c  for the refrigerating compartment are formed in a box shape with an open front surface, and are formed to be spaced apart from each other. 
     That is, an inside space of the inner casing  10   b  for the refrigerating compartment is used as the refrigerating compartment  11  that is open at a front surface thereof, and an inside space of the inner casing  10   c  for the refrigerating compartment is used as the freezing compartment  12  that is open at a front surface thereof. 
     A partition wall  10   d  (referring to  FIGS.  4  and  6   ) may be provided in a space between the two inner casings  10   b  and  10   c . The partition wall  10   d  may be a separate frame placed between the two inner casings  10   b  and  10   c , may be a filling material filling between the two inner casings  10   b  and  10   c , or may be configured as a void. 
     Further, the open front surface of the refrigerating compartment  11  is configured to be opened and closed by a refrigerating compartment door  20   a ,  20   b , and the open front surface of the freezing compartment  12  is configured to be opened and closed by a freezing compartment door  30   a ,  30   b.    
     The refrigerating compartment door  20   a ,  20   b  is configured as two doors, and configured as double-door type rotary doors (a door installed to be horizontally rotatable) that may respectively open and close opposite sides of the refrigerating compartment  11 . The freezing compartment door  30   a ,  30   b  may be configured as two doors, and configured as double-door type rotary doors (a door installed to be horizontally rotatable) that may respectively open and close opposite sides of the freezing compartment  12 . 
     In particular, the ice-making compartment  21  is provided at an inside (a side located in the refrigerating compartment when the refrigerating compartment door is closed) of either refrigerating compartment door  20   a  (hereinbelow, the door refers to a “first refrigerating compartment door”) of the two refrigerating compartment doors  20   a  and  20   b . The ice-making compartment  21  is a storage compartment having an ice tray (not shown) for making ice at the refrigerating compartment door  20   a . The ice-making compartment  21  is configured to have a space partitioned from the refrigerating compartment  11 . The first refrigerating compartment door  20   a  is a refrigerating compartment door located on the left side when the refrigerator is viewed from the front (referring to  FIGS.  3  and  4   ). 
     Another refrigerating compartment door  20   b  (hereinbelow, the door refers to “second refrigerating compartment door”) of the two refrigerating compartment doors  20   a  and  20   b  is provided to open and close another space in the refrigerating compartment  11 . 
     Meanwhile, storage boxes  22   a  and  22   b  for storing an object to be stored may be provided in inside wall surfaces (wall surfaces exposed into the refrigerating compartment) of the first refrigerating compartment door  20   a  and the second refrigerating compartment door  20   b.    
     Seated port ions of the upper, middle, and lower compartments are provided for each of left and right spaces in the refrigerating compartment  11 . In each seated portion, a drawer box (not shown) may be provided to store the objects to be stored. 
     The drawer box may be installed to be ejected and retracted in a drawer manner. The drawer box in each of the compartments may be configured such that an upper end of the drawer box is spaced apart from a lower surface of another drawer box that is located on an upper side thereof. That is, through the space between the drawer boxes, cool air may pass between the drawer boxes of the compartments. 
     In addition, a separation wall  13  is provided in the freezing compartment  12  (referring to  FIGS.  4  and  5   ). The separation wall  13  is a wall built for dividing the freezing compartment  12  into left and right spaces, and is configured to be vertically erected at a center portion in the freezing compartment  12 . 
     The two freezing compartment doors  30   a  and  30   b  are configured to open and close the opposite spaces in the freezing compartment  12  divided by the separation wall  13 , respectively. That is, one freezing compartment door  30   a  (hereinbelow, the door refers to “first freezing compartment door”) is configured to open and close one side space in the freezing compartment (the left side space viewed from the front). Further, another freezing compartment door  30   b  (hereinbelow, the door refers to “second freezing compartment door”) is configured to open and close another side space in the freezing compartment (the right-side space viewed from the front). 
     In addition, storage boxes in which the object to be stored may be provided in inner surfaces of the two freezing compartment doors  30   a  and  30   b.    
     Further, the evaporator  40  is provided in the cabinet  10 . 
     As shown in  FIG.  6   . The evaporator  40  may be located in the rear side (the rear side in the freezing compartment) in the inner casing  10   c  for the freezing compartment. In more detail, the evaporator  40  may be located above a machine chamber  15 . 
     The machine chamber  15  is provided in a lower rear portion outside the inner casing  10   c  for the freezing compartment and provides a space in which a compressor and a condenser are installed. 
     The lower rear portion in the freezing compartment  12  has a freezing space that is narrower than an upper rear portion in the freezing compartment  12  by the size of the machine chamber  15 . That is, the upper portion in the freezing compartment  12  is formed by protruding rearward more than the lower portion in the freezing compartment  12 , and the evaporator  40  is located in the upper rear port ion in the freezing compartment  12 . 
     Further, a recovery duct  53  for the refrigerating compartment is provided in the cabinet  10 . 
     The recovery duct  53  for the refrigerating compartment is provided to recover the cool air flowing in the refrigerating compartment  11  toward a cool air inlet side of the evaporator  40 . 
     A first end of the recovery duct  53  for the refrigerating compartment is configured to be connected to a lower end of a rear surface of the inner casing  10   b  for the refrigerating compartment constituting the cabinet  10 . A second end of the recovery duct  53  for the refrigerating compartment is configured to be connected to the cool air inlet side (a lower portion of the evaporator) of the evaporator  40  of a rear surface of the inner casing  10   c  for the freezing compartment constituting the cabinet  10 . The structure is as shown in  FIGS.  9  and  11   . 
     The first end of the recovery duct  53  for the refrigerating compartment is configured to be connected to a side portion of a connection passage  54  (referring to  FIG.  11   ). The connection passage  54  is a configuration provided in the cabinet  10  to provide cool air blown from the freezing compartment side grille fan assembly  2  to the refrigerating compartment side grille fan assembly  1 . 
     The connection passage  54  may be integrally formed in the refrigerating compartment side grille fan assembly  1  or integrally formed in the freezing compartment side grille fan assembly  2 . The connection passage  54  may be formed separately from the cabinet  10  and the two grille fan assemblies  1  and  2  and then may be connected to the two grille fan assemblies  1  and  2 . 
     In the embodiment of the present disclosure, the connection passage  54  is a structure separately formed from the two grille fan assemblies  1  and  2  and having opposite ends connected to the two grille fan assemblies  1  and  2 . 
     The two grille fan assemblies  1  and  2  include the refrigerating compartment side grille fan assembly  1  provided in the refrigerating compartment  11 , and the freezing compartment side grille fan assembly  2  provided in the freezing compartment  12 . 
     In particular, the refrigerating compartment side grille fan assembly  1  is configured to receive cool air from the freezing compartment side grille fan assembly  2  and to supply the cool air into the refrigerating compartment  11 . The freezing compartment side grille fan assembly  2  is configured to receive cool air heat-exchanged by passing through the evaporator  40 , and to supply the cool air into the freezing compartment  12  and the ice-making compartment  21  or to supply the cool air to the refrigerating compartment side grille fan assembly  1 . 
     The freezing compartment side grille fan assembly  2  is provided in the front of the evaporator  40 . 
     In the freezing compartment side grille fan assembly  2 , two fan modules  230  and  240  are simultaneously provided therein and selectively supply cool air to the freezing compartment  12  and the ice-making compartment  21 . 
     That is, the two fan modules  230  and  240  are simultaneously provided in the single freezing compartment side grille fan assembly  2 , and a structure for guiding a flow of cool air blown by the two fan modules  230  and  240  allows the two fan modules  230  and  240  to be integrally formed in the freezing compartment side grille fan assembly  2 . 
     Further, a cool air duct  51  for the ice-making compartment is provided in a gap between the outer casing  10   a  and any one side wall of the two inner casings  10   b  and  10   c  constituting the cabinet  10 . 
     The cool air duct  51  for the ice-making compartment is a duct that guides the cool air provided from the freezing compartment side grille fan assembly  2  to be supplied to the ice-making compartment  21 . 
     A first end  51   a  of the cool air duct  51  for the ice-making compartment is installed by penetrating any one side surface (a side where the refrigerating compartment door having the ice-making compartment is located, the right side in the drawing when viewed from the rear surface) of the freezing compartment side grille fan assembly  2 . That is, an outlet from which the cool air of the cool air passage  213  for the ice-making compartment flows out is configured to be opened toward any one side portion between a grille panel  220  and a shroud  210  constituting the freezing compartment side grille fan assembly  2 , so that the cool air blown by an ice-making fan module  230  may flow smoothly without sudden change of direction. The above structure is as shown in  FIGS.  9  and  12   . 
     In addition, a second end  51   b  of the cool air duct  51  for the ice-making compartment is configured to penetrate a side wall of the inner casing  10   b  for the refrigerating compartment to be exposed into the refrigerating compartment  11 . 
     The second end  51   b  of the cool air duct  51  for the ice-making compartment is configured to supply the cool air to a supply guide duct  21   a  while matching with the supply guide duct  21   a  provided in the first refrigerating compartment door  20   a , when the first refrigerating compartment door  20   a  having the ice-making compartment  21  is operated to be closed. The supply guide duct  21   a  is formed to be extended to the ice-making compartment  21  and configured to supply the cool air to the ice-making compartment  21 . 
     In addition, a recovery guide duct  21   b  is provided in the first refrigerating compartment door  20   a . A first end of the recovery guide duct  21   b  is connected to the ice-making compartment  21  and a second end thereof is formed to be extended to a lower portion of a side wall of the first refrigerating compartment door  20   a , thereby guiding a recovery flow of the cool air passing through the ice-making compartment  21 . The above structure is as shown in  FIG.  12   . 
     Further, a recovery duct  52  for the ice-making compartment is provided in a gap between the outer casing  10   a  and any one side wall of the inner casing  10   b ,  10   c  of the cabinet  10 . 
     The recovery duct  52  for the ice-making compartment is a duct for guiding the cool air passing through the ice-making compartment  21  to be recovered to the freezing compartment  12 . 
     A first end  52   a  of the recovery duct  52  for the ice-making compartment is configured to penetrate the side wall of the inner casing  10   b  for the refrigerating compartment to be exposed into the refrigerating compartment  11 . The first end  52   a  of the recovery duct  52  for the ice-making compartment is configured to match with the second end of the recovery guide duct  21   b  when the first refrigerating compartment door  20   a  having the ice-making compartment  21  is operated to be closed. The above structure is as shown in  FIGS.  2  and  12   . 
     In addition, a second end  52   b  of the recovery duct  52  for the ice-making compartment is configured to pass through a penetration hole  12   a  (referring to  FIGS.  6  and  10   ) provided in a side wall of the inner casing  10   c  for the freezing compartment to be exposed into the freezing compartment  12 . 
     The second end  52   b  of the recovery duct  52  for the ice-making compartment is configured to be located at the rearmost side of a space in the lower compartment in the freezing compartment  12 . 
     In particular, it is preferable that the penetration hole  12   a  where the second end  52   b  of the recovery duct  52  for the ice-making compartment is located is located as close to a cool air suction side (a side where cool air recovered from the freezing compartment to the evaporator is suctioned) of the freezing compartment side grille fan assembly  2  as possible. That is, the cool air recovered from the recovery duct  52  for the ice-making compartment should flow directly toward the evaporator  40  without affecting the temperature and humidity in the freezing compartment  12  as little as possible. 
     It is preferable that the penetration hole  12   a , in which the second end  52   b  of the recovery duct  52  for the ice-making compartment is located, is located in parallel with a side portion of a first suction guide  224   a  provided in the freezing compartment side grille fan assembly  2  of any one side wall of the inner casing  10   c  for the freezing compartment. 
     In particular, the second end  52   b  (or, the penetration hole  12   a  where the second end is located) of the recovery duct  52  for the ice-making compartment is formed in a triangular structure that gradually narrows toward a lower port ion thereof, and the second end  52   b  being configured to be opened to the lower compartment in the freezing compartment  12 . 
     That is, when a cool air discharge portion (or, the penetration hole) of the recovery duct  52  for the ice-making compartment is formed to have a long structure in the transverse direction, the temperature in the freezing compartment  12  may be affected by the structure. However, as shown in the embodiment of the present disclosure, the cool air discharge portion (or, penetration hole) of the triangular structure of the recovery duct  52  for the ice-making compartment has a vertically long structure while considering the shape of the machine chamber  15 , so that the effect on the temperature in the freezing compartment  12  may be minimal. 
     Further, the refrigerating compartment side grille fan assembly  1  of the refrigerator is configured to supply the cool air, which is provided from the freezing compartment side grille fan assembly  2  through the connection passage  54 , to each portion in the refrigerating compartment  11 . The freezing compartment side grille fan assembly  2  is configured to selectively supply the cool air, which is heat-exchanged by passing through the evaporator  40 , to the refrigerating compartment  11 , the freezing compartment  12 , or the ice-making compartment  21 . 
     The connection passage  54  is configured to connect the center of a lower portion of the refrigerating compartment side grille fan assembly  1  to the center of an upper portion of the freezing compartment side grille fan assembly  2 . The above structure is as shown in  FIGS.  9  and  11   . 
     The connection passage  54  may be formed in a block in which a passage is provided. 
     Although not shown in the drawings, the connection passage  54  may be formed in a hollow tube body (duct), or may be formed in a flexible material such as a hose. 
     In addition, the passage gate  60  is provided in at least one portion of the refrigerating compartment side grille fan assembly  1  and the connection passage  54 . 
     The passage gate  60  is a configuration that is provided to selectively block the cool air introduced through the connection passage  54  from the cool air passage  214  for the freezing compartment. That is, by the passage gate  60 , the selective cool air supply may be performed in the cool air passage  121  for the refrigerating compartment of the refrigerating compartment side grille fan assembly  1 . 
     The passage gate  60  may be provided in a cool air inlet side of the cool air passage  121  for the refrigerating compartment. That is, since the passage gate  60  is provided in the refrigerating compartment side grille fan assembly  1 , assembly and maintenance thereof may be performed easily. 
     As shown in  FIG.  8   , the passage gate  60  includes a damper casing  61 , an opening and closing damper  62 , and a damper operation part  63 . 
     The damper casing  61  is provided in the cool air passage  121  for the refrigerating compartment and is formed in a rectangular frame structure in which a through hole  61   a  is provided. The opening and closing damper  62  is configured to be provided in the damper casing  61  and to open and close the through hole  61   a . The damper operation part  63  is configured to operate the opening and closing damper  62 . 
     The damper operation part  63  may be a motor, the opening and closing damper  62  may be formed in a plate that rotates while being coupled to the motor by a shaft to close or open the through hole  61   a.    
     Although not shown in the drawings, the passage gate  60  may be configured to forcibly close or open a passage through which the cool air passes by a solenoid or cylinder, or may be configured in various structures other than that. 
     Meanwhile, according to the embodiment of the present disclosure, the improved refrigerating compartment side grille fan assembly  1  is provided in the refrigerator. 
     That is, the conventional refrigerating compartment side grille fan assembly is configured to supply a uniform amount of cool air to all of left and right, and upper and lower spaces in the refrigerating compartment  11 . Accordingly, in the case of the refrigerator having the ice-making compartment  21  provided in the refrigerating compartment door  20   a , there is a problem that the temperature in each portion in the refrigerating compartment  11  is not constant, and the temperature has wide variation. 
     Accordingly, in the refrigerator according to the embodiment of the present disclosure, the refrigerating compartment side grille fan assembly  1  is configured to supply more cool air to the space having the second refrigerating compartment door  20   b  than the space having the first refrigerating compartment door  20   a  of the spaces of the opposite sides in the refrigerating compartment  11 . 
     Considering that the ice-making compartment  21  is provided in the first refrigerating compartment door  20   a  and cool air supplied to the ice-making compartment  21  is cool air supplied from the freezing compartment  12  having a lower temperature than cool air in the refrigerating compartment  11 , the ambient temperature in the ice-making compartment  21  has also a lower temperature than the temperature in the refrigerating compartment  11 . Therefore, the side where the ice-making compartment  21  is located is maintained in a lower temperature range that other portions even when the cool air of the refrigerating compartment  11  is not sufficiently supplied to the side. Considering the above structure, the refrigerator is configured to supply a larger amount of cool air to the side where the second refrigerating compartment door  20   b  is located, so that the entire port ion of the refrigerating compartment is maintained at a uniform temperature. 
     Since the one space of the refrigerating compartment  11  is smaller than the another space thereof by the size of the ice-making compartment  21 , even when the amount of cool air supplied to the one space is less than the amount of cool air supplied to the another space, refrigeration of the object to be stored may be performed smoothly. 
     Hereinbelow, according to the embodiment of the present disclosure, the embodiment with respect to detailed structure of the refrigerating compartment side grille fan assembly  1  will be described with respect to  FIGS.  15  to  25   . 
       FIG.  15    is a perspective view from the front of the refrigerator showing the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure.  FIG.  16    is a perspective view from the rear off the refrigerator showing the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure. 
       FIG.  17    is a front view showing the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure.  FIG.  18    is a rear view showing the refrigerating compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure. 
     As shown in the drawings, the refrigerating compartment side grille fan assembly  1  includes an upper grille panel  110  and a duct unit  120 . Each configuration will be described below. 
     First, the upper grille panel  110  will be described. 
     The upper grille panel  110  is a portion providing a front surface of the refrigerating compartment side grille fan assembly  1 . 
     A front surface of the upper grille panel  110  is configured as a rear wall surface in the refrigerating compartment  11  when viewed from the front of the refrigerator. 
     A plurality of cool air outlets  111 ,  112   a , and  112   b  is formed in the upper grille panel  110  (referring to  FIGS.  15  and  17   ). 
     The cool air outlets  111 ,  112   a , and  112   b  include a cool air outlet  111  for an upper compartment supplying cool air to the upper compartment of the refrigerating compartment  11 , and a cool air outlet  112   a .  112   b  for a middle compartment supplying cool air to the middle compartment of the refrigerating compartment  11 . 
     The cool air outlet  111  for the upper compartment is configured to guide cool air to be discharged along an upper wall surface of the refrigerating compartment  11 , and is formed in an upper end of the upper grille panel  110 . 
     In particular, a cool air discharge guide  110   a  that guides a flow direction of cool air discharged through the cool air out let  111  for the upper compartment is provided in the upper end of the upper grille panel  110 . The cool air discharge guide  110   a  is formed to be inclined or rounded forward as the cool air discharge guide  110   a  goes upward (referring to  FIGS.  16  and  19   ). 
     The cool air outlet  112   a ,  112   b  for the middle compartment are configured as two cool air outlets  112   a  and  112   b . Each of the cool air outlets  112   a  and  112   b  are configured to be symmetrically located on opposite sides based on a center port ion of the refrigerating compartment  11 . 
     In the cool air out lets  112   a  and  112   b  for the middle compartment, one cool air outlet  112   a  for the middle compartment (hereinbelow, which refers to “first cool air outlet for the middle compartment”) is located on a side facing the first refrigerating compartment door  20   a  where the ice-making compartment  21  is located. The remaining cool air outlet  112   b  for the middle compartment (hereinbelow, which refers to “second cool air outlet for the middle compartment”) is located in a side facing the second refrigerating compartment door  20   b  where the ice-making compartment  21  is not located. 
     The two cool air outlets  112   a  and  112   b  for the middle compartment are formed identically to each other. 
     Although not shown in the drawings, transverse widths of the two cool air outlets  112   a  and  112   b  for the middle compartment may be formed to be different from each other. However, when the transverse widths of the two cool air outlets  112   a  and  112   b  for the middle compartment are different from each other, complaints of a user may be caused. That is, when the refrigerating compartment side grille fan assembly  1  forming the rear wall surface of the refrigerating compartment  11  is formed in an asymmetric shape that is not bilateral symmetry, the user may suspect a product defect due to the asymmetric shape or may be dissatisfied with the design. 
     Considering the above problem, it is preferable that the cool air outlets  112   a  and  112   b  for the middle compartment have the same shape. 
     In addition, the upper grille panel  110  may have unused cool air outlets  113   a  and  113   b.    
     The unused cool air outlets  113   a  and  113   b  are cool air outlets with closed rear surfaces so that cool air discharge is not actually performed. The unused cool air outlets  113   a  and  113   b  are respectively located in lower portions of the cool air outlets  112   a  and  112   b  for the middle compartment. 
     Hereinbelow, the duct unit  120  will be described. 
     The duct unit  120  is a portion guiding a cool air flow and provided in a rear surface of the upper grille panel  110 , as show in  FIGS.  16  and  18  to  20   . 
     The duct unit  120  is coupled in close contact with the rear surface of the upper grille panel  110 , and in this case, a coupling method thereof may include screw coupling, bonding, press fitting coupling, welding, etc. 
     Further, cool air inlets  122   a  and  122   b  for the middle compartment are formed by penetrating from the front to the rear of opposite sides of the duct unit  120  (referring to  FIGS.  19  and  20   ). 
     The two cool air inlets  122   a  and  122   b  for the middle compartment includes a first cool air inlet  122   a  for the middle compartment and a second cool air inlet  122   b  for the middle compartment. The first cool air inlet  122   a  for the middle compartment is located to math with the first cool air outlet  112   a  for the middle compartment of the upper grille panel  110  and the second cool air inlet  122   b  for the middle compartment is located to match with the second cool air outlet  112   b  for the middle compartment of the upper grille panel  110 . 
     The two cool air inlets  122   a  and  122   b  for the middle compartment may be formed in the same size as the cool air outlets  112   a  and  112   b  for the middle compartment or different therefrom. 
     Further, the first cool air passage  124  for the refrigerating compartment and a second cool air passage  125  for the refrigerating compartment are formed by recessing a rear surface of the duct unit  120 . 
     The two cool air passages  124  and  125  for the refrigerating compartment are provided to guide cool air provided from a lower end of the duct unit  120  to flow to an upper end thereof. 
     The first cool air passage  124  for the refrigerating compartment is a passage that is formed in one side of the refrigerating compartment, the side facing the first refrigerating compartment door  20   a  having the ice-making compartment  21  on the basis with the center of the duct unit  120  (right side in the rear view in  FIG.  20   ). The second cool air passage  125  for the refrigerating compartment is a passage that is formed in another side of the refrigerating compartment, the side facing the second refrigerating compartment door  20   b  without the ice-making compartment  21  (left side in the rear view in  FIG.  20   ). 
     An upper end of the first cool air passage  124  for the refrigerating compartment penetrates an upper surface of the duct unit  120  to be open upward. The upper end of the first cool air passage  124  for the refrigerating compartment may be located to match with an end portion of either side of the cool air outlet  111  for the upper compartment of the upper grille panel  110 . 
     In addition, the first cool air passage  124  for the refrigerating compartment is configured to communicate with the first cool air outlet  112   a  for the middle compartment, and the second cool air passage  125  for the refrigerating compartment is configured to communicate with the second cool air outlet  112   b  for the middle compartment. 
     In particular, the first cool air passage  124  for the refrigerating compartment is configured to be partially communicate with the first cool air inlet  122   a  for the middle compartment located at the same side as the first cool air passage  124  for the refrigerating compartment. The second cool air passage  125  for the refrigerating compartment is configured to completely communicate with the second cool air inlet  122   b  for the middle compartment at the same side as the second cool air passage  125  for the refrigerating compartment. That is, a communication portion between the second cool air passage  125  for the refrigerating compartment and the second cool air outlet  112   b  for the middle compartment is formed to be larger than a communication portion between the first cool air passage  124  for the refrigerating compartment and the first cool air outlet  112   a  for the middle compartment. 
     As a result, the amounts of cool air supplied to the opposite spaces in the refrigerating compartment  11  are different from each other. In particular, since more cool air is supplied to one space without the ice-making compartment  21  than another space having the ice-making compartment  21 , temperature deviation for each portion in the refrigerating compartment  11  may be minimized. 
     That is, among the opposite spaces in the refrigerating compartment  11 , the space having the ice-making compartment  21  is provided to be narrower than the opposite space by the thickness of the ice-making compartment  21 . In addition, the temperature in the ice-making compartment  21  is lower than the temperature in the refrigerating compartment  11 . Considering the above structures, as more cool air is supplied to the space without the ice-making compartment  21  among the spaces of the opposite sides of the refrigerating compartment  11 , the uniform temperature range may be provided over the entire port ion in the refrigerating compartment  11 . 
     Meanwhile, a transverse width of the second cool air passage  125  for the refrigerating compartment may be formed to be wider than a transverse width of the first cool air passage  124  for the refrigerating compartment. 
     By allowing a large amount of cool air to be supplied to the second cool air passage  125  for the refrigerating compartment, more cool air may be supplied to the space without the ice-making compartment  21  among the spaces of the opposite sides in the refrigerating compartment  11  through the second cool air outlet  112   b  for the middle compartment communicating with the second cool air passage  125  for the refrigerating compartment. 
     Further, the lower portion of the duct unit  120  has a protrusion  130  protruding downward from a lower surface of the upper grille panel  110 . 
     The protrusion  130  has a third cool air passage  131  for the refrigerating compartment that guides a cool air flow received from the freezing compartment side grille fan assembly  2  through the connection passage  54 . Lower ends of the first cool air passage  124  for the refrigerating compartment and the second cool air passage  125  for the refrigerating compartment that are formed in the rear surface of the duct unit  120  are configured to meet the third cool air passage  131  for the refrigerating compartment of the protrusion  130 . 
     In particular, the third cool air passage  131  for the refrigerating compartment is configured to supply more cool air to the second cool air passage  125  for the refrigerating compartment than to the first cool air passage  124  for the refrigerating compartment. 
     In order to achieve the above configuration, a cool air outlet side of the third cool air passage  131  for the refrigerating compartment may be formed to be inclined or rounded, so that cool air flows in a direction equal to an inclination of a cool air inlet side of the second cool air passage  125  for the refrigerating compartment. 
     The first cool air passage  124  for the refrigerating compartment is preferably formed to be inclined or rounded in a direction different from the third cool air passage  131  for the refrigerating compartment and the second cool air passage  125  for the refrigerating compartment. 
     As described above, the refrigerating compartment side grille fan assembly is configured to supply more cool air through the third cool air passage  131  for the refrigerating compartment to the second cool air passage  125  for the refrigerating compartment than to the first cool air passage  124  for the refrigerating compartment. Accordingly, more cool air may be supplied to the space (the space at the side where the ice-making compartment is not located) without the ice-making compartment in the refrigerating compartment  11 . 
     In addition, a lower connection duct  132  may be provided in a lower end of the protrusion  130 . 
     The lower connection duct  132  is a portion to which the connection passage  54  is connected. 
     The connection passage  54  may be configured to be directly connected to the third cool air passage  131  for the refrigerating compartment of the protrusion  130 . However, a coupling structure for simply inserting the connection passage  54  into the third cool air passage  131  for the refrigerating compartment may be easily separated in case of vibration, external shock, or shaking of the refrigerator. Further, there is a problem of leakage of cool air because air seal is not secured, and when the coupling is firmly performed in order to prevent the above problem, there is a difficulty in separation for maintenance thereof. 
     Considering the above problem, it is preferable that the lower connection duct  132  is additionally provided to allow the connection passage  54  to be firmly and tightly connected to the third cool air passage  131  for the refrigerating compartment and to facilitate maintenance of the connect ion passage  54 . 
     A first end of the lower connection duct  132  has a first end and a second end. The first and second ends are formed by protruding, so that the first end is inserted and connected to a cool air inlet side of the third cool air passage  131  for the refrigerating compartment and the second end thereof is inserted and coupled to the connection passage  54 . 
     In particular, the lower connection duct  132  may be separably coupled to the protrusion  130  or the connection passage  54  or to all of the protrusion  130  and the connection passage  54 . Whereby, the refrigerating compartment side grille fan assembly  1  may be separated from the connection passage  54 . The lower connection duct  132  may be configured to be separably coupled to one port ion of the protrusion  130  or the connection passage  54 . 
     The passage gate  60  may be provided in a cool air outlet side of the lower connection duct  132  in the inside of the third cool air passage  131  for the refrigerating compartment of the protrusion  130 . 
     Further, an installation part  126  (referring to  FIGS.  16  and  18  to  20   ) for installation of an air purification module  170  (referring to  FIGS.  15  and  17   ) may be provided in the duct unit  120 . 
     The air purification module  170  is configured to suction cool air in the refrigerating compartment  11  to remove odor components and then resupply the cool air to the refrigerating compartment  11 . 
     Although not shown in detail, the air purification module  170  may include a suction fan and a filter. That is, the air purification module  170  may be configured to suction cool air in the refrigerating compartment by the operation of the suction fan and filter the cool air, and then resupply the filtered cool air to the refrigerating compartment  11 . Accordingly, the refrigerating compartment  11  may be deodorized and various contaminants therein may be removed. 
     The installation part  126  is located in a center portion of the upper end of the duct unit  120  (the portion between the first cool air passage for the refrigerating compartment and the second cool air passage for the refrigerating compartment), and is formed in a hole that is open from the front to the rear so that the air purification module  170  may be mounted to the installation part  126 . 
     In addition, a recovery passage  127  that resupplies the cool air passing through the installation part  126  to the refrigerating compartment  11  is provided in the rear surface of the duct unit  120 . The recovery passage  127  has communication holes  127   a  that communicate with the middle compartment side space and a lower compartment side space in the refrigerating compartment  11 . 
     Further, a blocking plate  140  may be provided in the rear surface of the duct unit  120 . 
     The blocking plate  140  is provided to cover the cool air passages  124  and  125  formed in the rear surface of the duct unit  120 . 
     In particular, the blocking plate  140  is formed of insulating material. Accordingly, heat loss due to heat exchange with outside air while cool air flows along the two cool air passages  124  and  125  for the refrigerating compartment is prevented. 
     The insulating material may be various material, such as Styrofoam, fiber material, wood, rubber material, synthetic resin material, etc. 
     Meanwhile, an upper connection duct  128  (referring to  FIGS.  10  to  18   ) may be provided in the duct unit  120 . 
     The upper connection duct  128  is provided to supply part of cool air, which flows upward to the upper end of the duct unit  120  along the first cool air passage  124  for the refrigerating compartment or the second cool air passage  125  for the refrigerating compartment, to other portions of the refrigerating compartment  11 . 
     That is, as a guide duct  129  is connected to the upper connection duct  128 , the cool air may be directly supplied to a portion to which the guide duct  129  is connected. The above structure is as shown in  FIG.  9   . 
     A rear end of the guide duct  129  is connected to the upper connection duct  128 , and a front end thereof is connected to be exposed to the inside of the refrigerating compartment  11  through a wall surface on a front side of an upper surface of the refrigerating compartment  11 . 
     In particular, the upper connection duct  128  may be configured to receive part of cool air from the second cool air passage  125  for the refrigerating compartment. 
     That is, a branched passage  125   c  is provided in the second cool air passage  125  for the refrigerating compartment, and the upper connection duct  128  is connected to a cool air outlet side of the branched passage  125   c . The second cool air passage  125  for the refrigerating compartment may have a branched guide  125   d  for providing the branched passage  125   c . The above structure is as shown in  FIG.  16  to  18   . 
     Further, a lower grille panel  150  (referring to  FIGS.  22  to  26   ) may be provided in a port ion of the lower surface of the upper grille panel  110 , the portion being in front of the protrusion  130 . 
     As shown in  FIG.  5   , the lower grille panel  150  is configured to form a lower portion of the front wall surface of the refrigerating compartment side grille fan assembly  1 , and serves to block the protrusion  130  coupled to the portion to be exposed to the refrigerating compartment  11 . 
     A cool air recovery port  151  (referring to  FIGS.  5  and  22  to  26   ) that is open to the inside of the refrigerating compartment  11  is provided in a lower end of the lower grille panel  150 . 
     That is, cool air flowing in the refrigerating compartment  11  is discharged to the rear of the inner casing  10   b  for the refrigerating compartment through the cool air recovery port  151 . 
     In the recovery duct  53  for the refrigerating compartment, a first end thereof is installed to cover a port ion of the rear surface of the lower grille panel  150  where the cool air recovery port  151  is provided, and a second end thereof is installed to be connected to the cool air inlet side of the evaporator  40 . 
     Meanwhile, he improved freezing compartment side grille fan assembly  2  is provided in the refrigerator according to the embodiment of the present disclosure. 
     The freezing compartment side grille fan assembly  2  includes a cool air passage  213  for the ice-making compartment and a cool air passage  214  for the freezing compartment that guide respective flows of cool air by the operations of the fan modules  230  and  240 . The two cool air passages  213  and  214  are configured to share cool air with each other, and the cool air passage  214  for the freezing compartment is configured to supply cool air to the refrigerating compartment side grille fan assembly  1  while the connection passage  54  is connected thereto. 
     Hereinbelow, the embodiment with respect to a detailed structure of the freezing compartment side grille fan assembly  2  will be described in detail with reference to  FIGS.  26  to  35   . 
       FIG.  26    is a perspective view from the front of the refrigerator, the view showing a freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure.  FIG.  27    is an exploded-perspective view from the front of the refrigerator, the view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure.  FIG.  28    is a perspective view from the rear of the refrigerator, the view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure.  FIG.  29    is an exploded-perspective view from the rear of the refrigerator, the view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure. 
       FIG.  30    is a front view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure.  FIG.  31    is a rear view showing the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure.  FIG.  32    is a rear view showing a grille fan of the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure.  FIG.  33    is a front view showing a shroud of the freezing compartment side grille fan assembly of the refrigerator according to the embodiment of the present disclosure. 
     As shown in the drawings, the freezing compartment side grille fan assembly  2  includes a shroud  210  and a grille panel  220 . 
     The shroud  210  provides a rear wall surface of the freezing compartment side grille fan assembly  2 , and the grille panel  220  forms a front wall surface of the freezing compartment side grille fan assembly  2 . 
     The evaporator  40  is located in a portion of a rear wall surface in the cabinet  10  (a rear wall surface in the inner casing), the portion being located in rear of the freezing compartment  12 . The shroud  210  is located in front of the evaporator  40 . 
     Further, the shroud  210  includes a first inlet hole  211   a  and a second inlet hole  211   b  that are formed through the shroud  210 . 
     The two inlet holes  211   a  and  211   b  are configured to cool air that is heat-exchanged by passing through the evaporator  40  located in rear of the freezing compartment  12  to a space between the grille panel  220  and the shroud  210 . 
     On a front surface of the shroud  210 , a freezing fan module  240  is provided in a portion where the first inlet hole  211   a  is formed and an ice-making fan module  230  is provided in a portion where the second inlet hole  211   b  is formed. 
     In particular, the first inlet hole  211   a  is formed in a center portion of an upper end of the shroud  210 . The second inlet hole  211   b  is formed in one side portion of the first inlet hole  211   a.    
     In addition, the cool air passage  213  for the ice-making compartment and the cool air passage  214  for the freezing compartment are respectively formed at the front surface of the shroud  210  (referring to  FIGS.  27  and  33   ). 
     The cool air passage  213  for the ice-making compartment is a passage that guides cool air passing through the second inlet hole  211   b  and flowing into a gap between the shroud  210  and the grille panel  220  to flow into a connection portion with the cool air duct  51  for the ice-making compartment. 
     The cool air passage  214  for the freezing compartment is a passage that guides the cool air passing through the first inlet hole  211   a  and flowing into the gap between the shroud  210  and the grille panel  220  to an upper compartment, a middle compartment, and the lower compartment of the freezing compartment  12 . 
     The cool air passage  214  for the freezing compartment and the cool air passage  213  for the ice-making compartment may be formed by recessing at least one surface of the front surface of the shroud  210  or a rear surface of the grille panel  220 , or may be formed of separate ribs protruding from the front surface of the shroud  210  or the rear surface of the grille panel  220 . 
     In addition, a cool air outlet  214   e  is provided in an upper wall surface  214   a  of the shroud  210 . 
     The cool air outlet  214   e  is open to communicate with a part of the cool air passage  214  for the freezing compartment and is located directly above the freezing fan module  240 . One end of the connection passage  54  is connected to the cool air outlet  214   e.    
     In particular, the cool air outlet  214   e  is formed to be inclined or rounded to the rear of the freezing compartment side grille fan assembly  2  as the cool air outlet  214   e  goes upward from a portion where the first inlet hole  211   a  is provided (a portion where the freezing fan module is located). Accordingly, the cool air outlet  214   e  is formed such that an opening thereof is gradually larger toward a cool air outlet side thereof, so that a sufficiently large amount of cool air may be supplied to the refrigerating compartment  11 . 
     Further, the cool air passage  214  for the freezing compartment and the cool air passage  213  for the ice-making compartment are configured to be partitioned by passage ribs  213   a  and  213   b  (shown in  FIG.  20   ). That is, the passage ribs  213   a  and  213   b , which are placed between the cool air passage  214  for the freezing compartment and the cool air passage  213  for the ice-making compartment, are formed on the front surface of the shroud  210 , so that the cool air passage  214  for the freezing compartment and the cool air passage  213  for the ice-making compartment may be separated from each other. 
     The passage ribs  213   a  and  213   b  include a first circumferential passage rib  213   a  and a second circumferential passage rib  213   b  that are formed along a circumference of the second inlet hole  211   b.    
     The portion where the second inlet hole  211   b  is provided may be partitioned from the cool air passage  214  for the freezing compartment by the two circumferential passage ribs  213   a  and  213   b . The cool air passing through the second inlet hole  211   b  may be blown along the cool air passage  213  for the ice-making compartment formed by the passage rib  213   a ,  213   b  into the cool air duct  51  for the ice-making compartment. 
     The first circumferential passage rib  213   a  is configured to cross between the first inlet hole  211   a  and the second inlet hole  211   b  on the front surface of the shroud  210 . That is, as the first circumferential passage rib  213   a  is configured to block between the ice-making fan module  230  and the freezing fan module  240 , the cool air provided from the freezing fan module  240  is prevented from being directly discharged to a cool air outlet of the cool air passage  213  for the ice-making compartment. 
     In addition, the first circumferential passage rib  213   a  is rounded to surround a part of a circumference at one side (a side of the freezing fan module is located) of the ice-making fan module  230 . Accordingly, the cool air blown while rotating in a circumferential direction of the ice-making fan module  230  by the operation of the ice-making fan module  230  may flow toward the communication portion with the cool air duct  51  for the ice-making compartment by guidance of the first circumferential passage rib  213   a.    
     The second circumferential passage rib  213   b  is configured to surround a lower circumference of a portion where the ice-making fan module  230  is installed, on the front surface of the shroud  210 . That is, the second circumferential passage rib  213   b  divides the lower portion of the ice-making fan module  230  from the center portion between the ice-making fan module  230  and the freezing fan module  240 . 
     In addition, the second circumferential passage rib  213   b  is rounded to surround the lower circumference of the ice-making fan module  230 . 
     Further, the two circumferential passage ribs  213   a  and  213   b  are configured to be spaced apart from each other. Whereby, an upper shared passage  215   a  is provided between an end of the first circumferential passage rib  213   a  and an end of the second circumferential passage rib  213   b.    
     The cool air passage  214  for the freezing compartment and the cool air passage  213  for the ice-making compartment share the cool air through the upper shared passage  215   a . That is, when the ice-making fan module  230  is operated, part of cool air flowing in the cool air passage  213  for the ice-making compartment is supplied to the cool air passage  214  for the freezing compartment through the upper shared passage  215   a . Accordingly, a sufficient amount of cool air may be supplied to the freezing compartment  12  or the refrigerating compartment  11 . 
     In particular, as the second circumferential passage rib  213   b  is located to surround an outer circumference of a lower end of the first circumferential passage rib  213   a , the upper shared passage  215   a  provided between the two circumferential passage ribs  213   a  and  213   b  discharges cool air toward an upper space in the cool air passage  214  for the freezing compartment. 
     Further, a lower shared passage  215   b  may be provided in a lower portion of the second circumferential passage rib  213   b.    
     The lower shared passage  215   b  is provided to guide the supply of the cool air to a lower surface side in the cool air passage  214  for the freezing compartment. When only the ice-making fan module  230  is operated, the lower shared passage  215   b  supplies the cool air to the freezing compartment  12  to solve the pressure difference between the cool air passage  214  for the freezing compartment (or freezing compartment) and the cool air passage  213  for the ice-making compartment. 
     The condensed water in the cool air passage  213  for the ice-making compartment may be discharged to the outside thereof through the lower shared passage  215   b . Therefore, malfunction such as freezing of the ice-making fan module may be prevented. 
     Further, the grille panel  220  has a plurality of cool air outlets  221 ,  222 , and  223 . 
     The cool air outlets  221 ,  222 , and  223  includes a cool air outlet  221  for the upper compartment discharging cool air to the upper compartment of the freezing compartment  12 , a cool air outlet  222  for the middle compartment discharging cool air to the middle compartment of the freezing compartment  12 , and a cool air outlet  223  for the lower compartment discharging cool air to the lower compartment of the freezing compartment  12 . The cool air outlets are as shown in  FIGS.  22  to  24   . 
     Further, the grille panel  220  has suction guides  224   a  and  224   b  guiding the recovery flow of the cool air flowing in the freezing compartment  12 . The suction guides  224   a  and  224   b  are provided in lower ends of the grille panel  220  and are configured to allow the cool air recovered after circulating in the freezing compartment  12  to flow into a lower end of the evaporator  40 . 
     Each of the suction guides  224   a  and  224   b  is formed to be inclined (or rounded) at an angle the same (or similar) to a wall constituting the rear side bottom of the freezing compartment  12 , as the suction guide goes to the lower end thereof. That is, the cool air flowing along a lower surface of the freezing compartment  12  may be guided by the suction guides  224   a  and  224   b  to smoothly flow to the lower end of the evaporator  40 . 
     In particular, the suction guides  224   a  and  224   b  includes a first suction guide  224   a , which is provided in one side in the lower ends of the grille panel  220  on the basis of the center portion of the grille panel  220 , the side where the second end  52   b  of the recovery duct  52  for the ice-making compartment is located. The suction guides  224   a  and  224   b  includes a second suction guide  224   b , which is provided another side in the lower ends of the grille panel  220  on the basis of the center portion of the grille panel  220 , the side opposite to the first suction guide  224   a . That is, cool air flowing through one space (a space communicating with the second end of the recovery duct for the ice-making compartment) in the freezing compartment  12  is recovered through the first suction guide  224   a , and cool air flowing through another space in the freezing compartment  12  is recovered through the second suction guide  224   b.    
     Hereinbelow, according to the embodiment of the present disclosure, the temperature control process for the refrigerating compartment, the freezing compartment  12 , and the ice-making compartment  21  of the refrigerator will be described in detail. 
     The temperature control process of the refrigerating compartment  11  may be described with reference to  FIGS.  36  to  39   . 
     The temperature control of the refrigerating compartment  11  is performed by the operations of the freezing fan module  240 , the compressor (not shown), and the passage gate  60 . 
     That is, the passage gate  60  is operated, so that the connection passage  54  and the cool air passage  121  for the refrigerating compartment are opened to each other (referring to  FIG.  8   ). Then, when the freezing fan module  240  rotates and the compressor is operated by power supply to the freezing fan module  240 , the heat exchange of the evaporator  40  is performed, and thus the operation for controlling the temperature in the refrigerating compartment  11  is performed. 
     When the freezing fan module  240  is operated, air in the freezing compartment  12  flows to pass through the evaporator  40  by a blowing force of the freezing fan module  240 , thereby being heat-exchanged while passing through the evaporator  40 . 
     Further, the heat exchanged air (cool air) passes through the first inlet hole  211   a  of the shroud  210  and then flows into the cool air passage  214  for the freezing compartment. 
     The cool air introduced into the cool air passage  214  for the freezing compartment and blown to the upper space in the cool air passage  214  for the freezing compartment is discharged through the cool air outlet  214   e.    
     Further, the cool air discharged through the cool air outlet  214   e  flows into the third cool air passage  131  for the refrigerating compartment formed in the protrusion  130  of the refrigerating compartment side grille fan assembly  1  by guidance of the connection passage  54 . 
     Then, the cool air introduced into the third cool air passage  131  for the refrigerating compartment flows upward along the third cool air passage  131  for the refrigerating compartment to be supplied to the first cool air passage  124  for the refrigerating compartment and the second cool air passage  125  for the refrigerating compartment. Continuously, the cool air flows upward along the first cool air passage  124  for the refrigerating compartment and the second cool air passage  125  for the refrigerating compartment, and part of the cool air is supplied to the middle compartment side space in the refrigerating compartment  11  by passing through the first cool air out let  112   a  for the middle compartment communicating with the first cool air passage  124  for the refrigerating compartment and the second cool air outlet  112   b  for the middle compartment communicating with the second cool air passage  125  for the refrigerating compartment. The remaining cool air is supplied to the upper compartment side space in the refrigerating compartment  11  by passing through the cool air outlet  111  for the upper compartment communicating with the upper ends of the first cool air passage  124  for the refrigerating compartment and the second cool air passage  125  for the refrigerating compartment. 
     In addition, part of cool air flowing to an upper end of the second cool air passage  125  for the refrigerating compartment is directly supplied to a front side space in the refrigerating compartment  11  through the upper connection duct  128  connected to the branched passage  125   c  and the guide duct  129 . 
     The first cool air passage  124  for the refrigerating compartment is configured to receive cool air less than the second cool air passage  125  for the refrigerating compartment, the first cool air outlet  112   a  for the middle compartment communicating with the first cool air passage  124  for the refrigerating compartment has the communication portion smaller than the communication portion of the second cool air outlet  112   b  for the middle compartment communicating with the second cool air passage  125  for the refrigerating compartment. 
     Considering the above structure, cool air supplied to the refrigerating compartment  11  through the second cool air outlet  112   b  for the middle compartment is larger than cool air supplied to the refrigerating compartment  11  through the first cool air outlet  112   a  for the middle compartment. Accordingly, the temperature deviation between the opposite spaces in the refrigerating compartment  11  caused by the ice-making compartment  21  may be reduced. 
     Meanwhile, cool air flowing in the refrigerating compartment  11  is supplied to the recovery duct  53  for the refrigerating compartment through the cool air recovery port  151  formed in the lower grille panel  150 . Continuously, the cool air repeats circulation in which the cool air is recovered to the cool air inlet side of the evaporator  40  located in the refrigerating compartment side inner casing  10   c  by guidance of the recovery duct  53  for the refrigerating compartment. 
     When the inside of the refrigerating compartment  11  reaches a preset temperature by the above-described operation, the passage gate  60  is operated to block between the connection passage  54  and the third cool air passage  131  for the refrigerating compartment. As a result, additional cool air supply to the refrigerating compartment  11  is not performed. 
     Hereinbelow, the process of controlling the temperature in the freezing compartment  12  will be described with reference to  FIGS.  40  and  41   . 
     The temperature control of the freezing compartment  12  is performed by the operations of the freezing fan module  240  and the compressor (not shown). That is, by the operation of the freezing fan module  240  and the heat exchange of the evaporator  40  due to the operation of the compressor, the operation for the temperature control of the freezing compartment  12  is performed. The passage gate  60  is operated to block between the connect ion passage  54  and the third cool air passage  131  for the refrigerating compartment. 
     When the freezing fan  231  of the freezing fan module  240  is operated, air in the freezing compartment  12  flows to pass through the evaporator  40  by the air blowing force of the freezing fan  231 , thereby passing through the evaporator  40  and being heat-exchanged. 
     The heat exchanged air (cool air) passes through the first inlet hole  211   a  of the shroud  210  and then flows into the cool air passage  214  for the freezing compartment. 
     The cool air introduced into the cool air passage  214  for the freezing compartment and blown to the upper space in the cool air passage  214  for the freezing compartment is discharged to the upper compartment in the freezing compartment  12  through the cool air outlet  221  for the upper compartment in the cool air passage  214  for the freezing compartment. The cool air blown to a lower side in the cool air passage  214  for the freezing compartment is discharged to the middle compartment and the lower compartment in the freezing compartment  12  through the cool air outlet  222  for the middle compartment and the two cool air outlets  223  for the lower compartment. 
     Further, the cool air supplied into the two freezing compartments  12  by passing through the cool air outlets  221 ,  222 , and  223  flows in the freezing compartment  12 , and then the two suction guides  224   a  and  224   b  formed in the grille panel  220  guides the cool air to be recovered to the cool air inlet side of the evaporator  40 . 
     Meanwhile, during the temperature control of the freezing compartment  12 , the ice-making fan module  230  may also be operated. 
     That is, in the case of the ice-making operation, the ice-making fan module  230  is set to be always operated except for special conditions (e.g., when ice is in full in the ice-making compartment). Considering the above state, the ice-making operation may be continuously performed during the freezing operation. 
     However, when the ice-making operation is performed when the freezing operation is performed, the flow of cool air flowing through the second inlet hole  211   b  and the cool air passage  213  for the ice-making compartment in order is generated by the operation of the ice-making fan module  230 . 
     In particular, part of the cool air generated by the operation of the ice-making fan module  230  is supplied into the cool air passage  214  for the freezing compartment through the upper shared passage  215   a . The remaining cool air is supplied into the ice-making compartment  21  through the cool air duct  51  for the ice-making compartment connected to the cool air passage  213  for the ice-making compartment. 
     That is, part of cool air passing through the second inlet hole  211   b  and flowing and blown into the cool air passage  213  for the ice-making compartment passes through the upper shared passage  215   a  and is supplied to the upper space in the cool air passage  214  for the freezing compartment. Other part of the cool air passes through the lower shared passage  215   b  is supplied to a lower space in the cool air passage  214  for the freezing compartment. The remaining part of the cool air is supplied to the ice-making compartment  21  through the cool air duct  51  for the ice-making compartment connected to a cool air outlet side of the cool air passage  213  for the ice-making compartment. 
     Therefore, in the freezing compartment  12 , not only the cool air blown by the operation of the freezing fan module  240  but also the cool air blown by the operation of the ice-making fan module  230  are supplied, so that sufficient cool air may be supplied. The above structure is as shown in  FIG.  42   . 
     In particular, the cool air supplied through the upper shared passage  215   a  is provided to the upper compartment of one space in the both side spaces in the freezing compartment  12 , the space at a side communicating with the recovery duct  52  for the ice-making compartment. Whereby, sufficient cool air may be supplied to the freezing compartment  12 . 
     In addition, the cool air supplied through the lower shared passage  215   b  is provided in a lower compartment of one space among the both side spaces of the freezing compartment  12 , the space at a side communicating with the recovery duct  52  for the ice-making compartment. Therefore, even when the cool air passing through the ice-making compartment  21  through the recovery duct  52  for the ice-making compartment is recovered, a sudden change of the temperature in the space is prevented. In addition, the opposite spaces in the freezing compartment  12  may be maintained within the same (or similar) temperature range. 
     Further, when the freezing operation (or ice-making operation) is performed or each operation is stopped, condensed water may be generated due to temperature difference between the cool air passage  213  for the ice-making compartment and the refrigerating compartment  11 , or the cool air duct  51  for the ice-making compartment and the refrigerating compartment  11 . 
     However, the generated condensed water flows down the second circumferential passage rib  213   b  of the cool air passage  213  for the ice-making compartment along the cool air duct  51  for the ice-making compartment. Continuously, the condensed water is introduced into the cool air passage for the freezing compartment through the lower shared passage  215   b  formed in the second circumferential passage rib  213   b , and then is discharged to the outside of the freezing compartment side grille fan assembly  2 . 
     Accordingly, a malfunction of the ice-making fan module  230  due to the condensed water freezing in the cool air passage  213  for the ice-making compartment without being drained may be prevented. 
     Hereinbelow, the operation for controlling the temperature in the ice-making compartment  21  (ice-making operation) will be described with reference to  FIGS.  43  to  45   . 
     The temperature control of the ice-making compartment  21  is performed by the operation of the ice-making fan module  230 . At this time, the compressor may be operated or stopped in response to the operating conditions of the freezing compartment  12 . 
     When the ice-making fan module  230  is operated, air in the freezing compartment  12  passes through the evaporator  40  by an air blowing force of the ice-making fan module  230  and passes through the second inlet hole  211   b  of the shroud  210  to be introduced into the cool air passage  213  for the ice-making compartment. Continuously, the air is discharged through a communication portion with the cool air passage  213  for the ice-making compartment. The above operation is as shown in  FIGS.  43  and  44   . 
     That is, part of the cool air, the air passing through the second inlet hole  211   b  and being introduced and blown into the cool air passage  213  for the ice-making compartment, passes through the upper shared passage  215   a  and is supplied to the upper space in the cool air passage  214  for the freezing compartment. Other part of the cool air passes through the lower shared passage  215   b  and is supplied into a lower space in the cool air passage  214  for the freezing compartment. The remaining part of the cool air is supplied to the ice-making compartment  21  through the cool air duct  51  for the ice-making compartment connected to the cool air outlet side of the cool air passage  213  for the ice-making compartment. 
     In particular, in the cool air passing through the second inlet hole  211   b  and supplied to the cool air passage  213  for the ice-making compartment by the air blowing force of the ice-making fan module  230 , cool air blown to an upper portion of the ice-making fan module  230  and then flows toward the cool air outlet side of the cool air passage  213  for the ice-making compartment by guidance of the cool air passage  213  for the ice-making compartment flows along a sufficient distance from the location where the cool air is blown to a circumference of the ice-making fan module  230  to the cool air outlet side of the cool air passage  213  for the ice-making compartment. Accordingly, it is possible to reduce the flow resistance generated by the portion where the cool air flows in and the portion where the cool air is discharged are located adjacent to each other, or to reduce discharge of cool air flowing back to the second inlet hole  211   b.    
     In addition, the inside of the freezing compartment  12  maintains a pressure state similar to a pressure state of the cool air passage  213  for the ice-making compartment by the cool air supplied through the upper shared passage  215   a  and the lower shared passage  215   b . That is, since the pressures of the freezing compartment  12  and the ice-making compartment  21  are roughly balanced, even when only the ice-making fan module  230  is operated for the ice-making operation, the cool air in the freezing compartment  12  may be prevented from (or, be minimized in) passing through the cool air passage  214  for the freezing compartment and the first inlet hole  211   a  in reverse and flowing into the second inlet hole  211   b  and the cool air passage  213  for the ice-making compartment. 
     Since the ice-making fan module  230  blows cool air at a high blowing pressure (high rotation speed of ice-making fan), the cool air may be smoothly conveyed to the ice-making compartment  21 . 
     The cool air flowing in the ice-making compartment  21  flows into the recovery duct  52  for the ice-making compartment, and continuously, the cool air is recovered to the freezing compartment  12  by guidance of the recovery duct  52  for the ice-making compartment. 
     Then, the cool air recovered to the freezing compartment  12  is directly suctioned into the first suction guide  224   a  located opposite to the freezing compartment  12  and is recovered to the cool air inlet side of the evaporator  40 . 
     Accordingly, the temperature in the ice-making compartment  21  is controlled by the above-described repeated circulation of air (cool air). 
     Therefore, the refrigerator of the present disclosure reduces an unnecessary amount of cool air supplied to the space having the first refrigerating compartment door  20   a  having the ice-making compartment  21  of the spaces of the opposite sides in the refrigerating compartment, but relatively increases the amount of cool air supplied to the opposite space. Accordingly, temperature deviation for the ent ire port ion in the refrigerating compartment  11  may be reduced. 
     The refrigerator of the present disclosure is a new type refrigerator that allows cool air blown from the freezing compartment side grille fan assembly  2  to be smoothly supplied to the refrigerating compartment side grille fan assembly  1  and facilitates maintenance thereof. 
     The refrigerator of the present disclosure may use the upper grille panel  110  of the refrigerating compartment side grille fan assembly  1  regardless of the refrigerator module. 
     The refrigerator of the present disclosure has the cool air passage  214  for the freezing compartment and the cool air passage  213  for the ice-making compartment that may share cool air with each other by provision of the shared passage  215   a ,  215   b . Accordingly, when the freezing fan module  240  and the ice-making fan module  230  are operated at the same time, cool air may be sufficiently supplied to the freezing compartment  12  and when only the ice-making fan module  230  is operated, cool air may be prevented from flowing back from the freezing compartment  12 . 
     The refrigerator of the present disclosure is configured to supply the cool air to the cool air passage  121  for the refrigerating compartment of the refrigerating compartment side grille fan assembly  1  through the cool air outlet  214   e  formed in the upper wall surface  214   a  of the cool air passage  214  for the freezing compartment and the connection passage  54  connected to the cool air outlet  214   e . Accordingly, cool air may be selectively supplied to the refrigerating compartment, the freezing compartment, and the ice-making compartment by the single evaporator  40 .