Patent Publication Number: US-11047607-B2

Title: Shroud for refrigerator

Description:
Pursuant to 35 U.S.C. § 119(a), this application claims the benefit of Korean Patent Application No. 10-2013-0013198, filed on Feb. 6, 2013 and No. 10-2013-0013199, filed on Feb. 6, 2013, the contents of which are hereby incorporated by reference herein in their entirety. 
     BACKGROUND OF THE DISCLOSURE 
     Field of the Disclosure 
     The present invention relates to a shroud for a refrigerator, more particularly, to a shroud for a refrigerator which has an enhanced efficiency of air flow therein. 
     Discussion of the Related Art 
     Generally, a refrigerator is an electric appliance used in freezing or refrigerating foods. Such a refrigerator consists of a case for a storage chamber divided into a freezer compartment and a refrigerator compartment and mechanisms (e.g., a compressor, a condenser, an evaporator and a capillary tube) configured to form a freezing cycle in order to lower temperatures of the refrigerator and freezer compartments. 
     Doors are coupled to sides of the case to open and close the refrigerator and freezer compartments, respectively. 
     In the refrigerator having the structure mentioned above, the compressor compresses a low temperature/pressure gaseous refrigerant into a high temperature/pressure refrigerant. While passing through the condenser, the compressed high temperature/pressure gaseous refrigerant is chilled and condensed to be a high pressure liquid refrigerant. After, while passing through the capillary tube, the high pressure and temperature of the liquid refrigerant are lowered to be a low temperature/pressure gas. The low temperature/pressure gas refrigerant absorbs heat nearby and chills ambient air. That freezing cycle mentioned above may perform a cooling process. 
     The cold air generated by the freezing cycle is provided to the refrigerator or freezer compartment by a shroud. 
     However, a shroud provided in a conventional refrigerator intensively supplies cold air to a lower portion of the storage chamber where foods are stored. Accordingly, there might be a disadvantage of a relatively big difference between a temperature of an upper portion and a temperature of a lower portion in the storage chamber. 
     SUMMARY OF THE DISCLOSURE 
     Exemplary embodiments of the present disclosure provide a shroud for a refrigerator which has an enhanced flow efficiency of air therein. 
     Exemplary embodiments of the present disclosure provide a shroud for a refrigerator which may increase a storage chamber. 
     To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a shroud for a refrigerator includes a blower for generating air flow; a first region arranged on the right of the blower, the first region comprising an outlet hole for a first storage chamber for exhausting cold air to the first storage chamber; a second region arranged on the left of the blower, the second region comprising an outlet hole for a second storage chamber for exhausting cold air to the second storage; a third region arranged under the blower, the third region comprising an outlet hole for the second storage chamber; and a first guide arranged between the second region and the third region, projected closer to a rotational center of the blower, to guide air flow. 
     The first guide may increase the air flow exhausted via the outlet hole for the second storage chamber provided in the second region. 
     The third guide may partially shut the air flowing toward the third region. 
     The first guide may be getting farther from the rotational center of the blower as farther in both lateral directions from a specific point. 
     The first guide may include a first extended surface extended from the specific point in a direction in which the width of the second region is decreased. 
     The first guide may include a second extended surface extended from the specific point to maintain the width of the third region. 
     The specific point may be arranged lower than the rotational center of the blower. 
     The shroud for the refrigerator may further include a second guide arranged between the first region and the second region, projected closer to the rotational center of the blower. 
     The second guide may partially shut the air flowing toward the second region. 
     The second guide may increase the air flow exhausted via the outlet hole for the first storage chamber. 
     Penetrating holes may be formed in both lateral portions of the third region, respectively. 
     The two penetrating holes may be in symmetry with respect to the third region. 
     The first region may include an outlet hole for the second storage chamber. 
     The shroud for the refrigerator may further include a third guide provided between the first region and the third region, projected toward the second region not to get out of a vertical extension line from the rotational center of the blower, to guide the air flow. 
     The third guide may increase the air flow exhausted via the outlet for the first storage chamber. 
     The third guide may partially shut the air flowing toward the third region. 
     The third guide may guide the air flow toward the third region. 
     The third guide may be getting farther from the rotational center of the blower in a horizontal direction as getting farther from a specific point in both side directions. 
     The third guide may include a third extended piece extended from the specific point in a direction in which the width of the first region is decreased. 
     The third guide may include a second extended piece extended from the specific point in a direction in which the width of the third region is increased. 
     According to the embodiments of the present disclosure, air flow efficiency inside in the shroud may be enhanced and the air flow exhausted via the plurality of the outlet holes may be distributed uniformly. Especially, the flow the cold air may be guided and distributed uniformly to distribute temperatures inside upper and lower portions of the storage chamber. 
     Furthermore, an auxiliary space for the storage chamber may be secured and the volume of the storage chamber for storing foods may be increased. 
     Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a side cut-away view of a refrigerator according to embodiments of the present disclosure; 
         FIG. 2  is a diagram illustrating a front surface of a shroud for a refrigerator according to embodiments of the present disclosure; 
         FIG. 3  is a diagram illustrating a base provided in a shroud for a refrigerator according to one embodiment of the present disclosure; 
         FIG. 4  is a diagram illustrating a cover and the base provided in the shroud according to one embodiment of the present disclosure; 
         FIG. 5  is a graph illustrating results of experiments according to one embodiment of the present disclosure; 
         FIG. 6  is a diagram illustrating a base provided in a shroud for a refrigerator according to another embodiment of the present disclosure; 
         FIG. 7  is a diagram illustrating a cover and the base provided in the shroud for the refrigerator according to the embodiment of  FIG. 6 ; and 
         FIG. 8  is a graph illustrating results of experiments according to the embodiment of  FIG. 6 . 
     
    
    
     DESCRIPTION OF SPECIFIC EMBODIMENTS 
     Exemplary embodiments of the disclosed subject matter are described more fully hereinafter with reference to the accompanying drawings. The disclosed subject matter may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, the exemplary embodiments are provided so that this disclosure is thorough and complete, and will convey the scope of the disclosed subject matter to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals in the drawings denote like elements. 
       FIG. 1  is a side cut-away view of a refrigerator according to embodiments off the present disclosure. Hereinafter, the refrigerator according to the embodiments of the present disclosure will be described, referring to  FIG. 1 . 
     The refrigerator includes a case  2  having a plurality of storage chambers  6  and  8  and a door  4  for opening and closing the storage chambers  6  and  8 . 
     The plurality of the storage chambers  6  and  8  may consist of a first storage chamber  6  and a second storage chamber  8 . The first storage chamber  6  and the second storage chamber  8  may be employed as a refrigerator compartment and a freezer compartment, respectively. In contrast, the first storage chamber  6  and the second storage chamber  8  may be employed as the freezer compartment and the refrigerator compartment, respectively. Alternatively, both of the first and second storage chambers  6  and  8  may be employed as the refrigerator compartment or the freezer compartment. 
     Meanwhile, the cold air generated from the evaporator of the freezing cycle is supplied to the first storage chamber  6  and the second storage chamber  8  via a shroud  10 . The shroud  10  includes a blower  40  for generating air circulation such that the cold air generated from the evaporator can be forcibly guided to the first storage chamber  6  and the second storage chamber  8 . 
     The shroud  10  may be connected to the second storage chamber  8  at a similar height such that the cold air may be supplied to the second storage chamber  8  via a plurality of outlets provided in the shroud  10 . 
     The shroud  10  is arranged less higher than the first storage chamber  6  and a duct  7  may be provided to connect the shroud  10  and the first storage chamber  6  with each other. Accordingly, the cold air guided by the shroud  10  may be moved into the first storage chamber  6  along the duct  7 . 
       FIG. 2  is a diagram illustrating a front surface of the shroud provided in the refrigerator according to the embodiments of the present disclosure. Hereinafter, the front surface of the shroud will be described, referring to  FIG. 2 . 
     The shroud  10  may include a base  30  and a cover  20  fixed to the base  30 . The base  30  may have an appearance of a square plate. The cover  20  may form a closed passage from the base  20  to allow air flow, with a predetermined height from the base  30 . Accordingly, the air may flow along the space provided between the cover  20  and the base  30 . 
     A plurality of outlet holes may be provided in the cover  20 . And the outlet holes are passages for supplying the cold air to the second storage chamber  8  from the shroud  10 . The plurality of the outlet holes for supplying the cold air to the second storage chamber  8  may consist of a first outlet hole  22 , a second outlet hole  24 , a third outlet hole  26  and a fourth outlet hole  28 . 
     When seeing the shroud  10 , the first outlet hole  22  may be arranged in an upper right portion and the second outlet hole  24  may be arranged in an upper left portion. The third outlet hole  26  may be arranged in a middle portion and the fourth outlet hole  28  may be arranged in a lower portion. The shroud  10  including the plurality of the outlet holes for supplying cold air may distribute the cold air to the second storage chamber  8  uniformly and the temperature inside the second storage  8  may be lowered uniformly. 
     Two penetrating holes  32  may be provided in both side portions of the shroud  10 , respectively. The shroud  10  is provided behind the second storage chamber  8  and the second storage chamber  8  may be more projected backward because of the empty space of the penetrating holes  32 . At this time, the penetrating holes  32  are arranged for the base  30  to penetrate. 
     Specifically, the second storage chamber  8  may be more projected backward, passing through the penetrating holes  32  such that an auxiliary space can be additionally secured for the second chamber  8 . Accordingly, the inner space of the second chamber  8  can be enlarged and more foods can be stored in the second storage chamber  8 , only to enhance spatial efficiency of the entire space inside the refrigerator. 
     The two penetrating holes  32  may be arranged in symmetry with respect to the central portion of the shroud  10 . The penetrating holes  32  may be provided in the portion where the cover is not formed in the base  30 . 
     The cover  20  may be coupled to the base in a shape of “T” and the two penetrating holes  32  may be arranged near a lower part of the T-shape. 
       FIG. 3  is a diagram illustrating a base provided in a shroud for a refrigerator according to one embodiment of the present disclosure and  FIG. 4  is a diagram illustrating a cover and the base provided in the shroud according to one embodiment of the present disclosure. Referring to  FIGS. 3 and 4 , the base and the cover of the shroud according to one embodiment will be described. 
       FIG. 3  substantially illustrates the base without the cover  20 . To describe an installation position of the cover  20  in the base  30 , only a profile of the cover  20  over the base  30  is shown in  FIG. 3 . Also,  FIG. 3  illustrates a state where the blower provided in the base  30  is removed. Accordingly, in  FIG. 3 , the cover  20  is shown as a full line and an inner structure of the base  30  covered by the cover  20  is shown as a dotted line. 
       FIG. 4  is a diagram illustrating the base  30  together with the cover  20 .  FIG. 4  illustrates the plurality of the outlet holes provided in the cover  20  together with the cover and the base. 
     A communication hole  34  is provided in the base  30  to move the cold positioned in a rear portion of the base  30  to a front portion of the base  30 . At this time, the blower  40  is provided in the communication hole  34  and the cold air positioned in the rear portion of the base  30  to the front portion forcedly. 
     The blower  40  may include a turbo fan provided to rotate in a counter-clockwise direction with respect to a rotational center  42 . Once the blower  40  starts to rotate, the air may be guided from the rear portion toward the front portion of the base  30 . 
     The shroud  10  may include a first region  50  arranged right on the blower  40 , a second region  52  arranged left on the blower  40  and a third region  54  arranged under the blower  40 . The first region  50 , the second region  52  and the third region  54  may form a passage for the air to flow in the shroud  10 . The cold air may flow through outlets of the regions. 
     The first region  50  has an outlet hole  36  for the first storage chamber to exhaust the cold air and the first outlet hole  22  as an outlet hole for the second storage chamber to guide the cold air to the second storage chamber  8 . The outlet hole  36  for the first storage chamber may be connected to the duct  7  mentioned above, referring to  FIG. 1 . 
     The outlet hole  36  for the first storage chamber is provided in the base  30  and the first outlet hole  22  may be provided in the cover  20 . 
     The second region  52  has the second outlet hole  24  as an outer hole for the second storage chamber to exhaust the cold air to the second storage chamber. The second outlet hole  24  may be provided in the cover  20 . 
     The third region  54  has the third outlet hole  26  as an outlet hole for the second storage chamber and the fourth outlet hole  28 . The third outlet hole  26  and the fourth outlet hole  28  may be provided in the cover  20 . At this time, the third outlet hole  26  is arranged higher than the fourth outlet hole  28  such that the cold air supplied to the second storage chamber  8  can be dispersed in the second storage chamber  8  uniformly. 
     The shroud  10  may further include a first guide  60  provided between the second region  52  and the third region  54 , projected toward the rotational center  42  of the blower  40 . The first guide  60  may guide the air flowing to the second region  52  and the third region  54 . 
     The first guide  60  may increase the flow of the air exhausted via the second outlet hole  24  of the second region  52 . That is because the first guide  60  can partially shut the flow of the air toward the third region  54  blown by the blower  40 . 
     The blower  40  rotates in the counter-clockwise direction and the air flow may be performed in the counter-clockwise direction with respect to the blower  40 . Accordingly, the first guide  60  may restrict the air flow toward the first region  54 . The amount of the air staying in the second region  52  may increase and the pressure inside the second region  52  may increase, such that the amount of the air exhausted via the second outlet hole  24 , in other words, the cold air can increase. 
     The first guide  60  may get farther from the rotational center  42  of the blower  40  as getting farther from a specific point  62  in both lateral directions. The specific point  62  may be a point boundary between the second region  52  and the third region  54 . In other words, as getting closer toward the second region  52  and the third region  54  from the specific point  62 , the boundary of the air flow may be getting farther from the rotational center of the blower  40 . 
     The first guide  60  may include a first extended surface  64  extended from the specific point  62  toward a direction in which the width of the second region  52  can be reduced. The first extended surface  64  may be extended to face an upper boundary of the second region  52 , to form a boundary of the second region  52 . 
     The first guide  60  may include a second extended surface  66  extended from the specific point  62  to maintain the width of the third region  54 . The second extended surface  66  may be extended to face a right boundary of the third region  54  to form a boundary of the third region  54 . 
     The first extended surface  64  and the second extended surface  66  are provided on both sides of the specific point  62 . The first and second extended surfaces  64  and  66  are arranged farther from the rotational center  42  than the specific point  62 . 
     Meanwhile, the specific point  62  may be arranged lower than the rotational center  42  of the blower  40 . The blower  40  rotates in the counter-clockwise direction. Accordingly, when the specific point  62  is lower than the rotational center  42  of the blower  40 , a more amount of air flow exhausted via the second outlet hole  24  can be secured. 
     Moreover, the shroud  10  may include a third guide  70  provided between the first region  50  and the third region  54 , projected toward the second region  52  not to get out of a vertical extension line from the rotational center  42  of the blower  40 . The third guide  70  may guide the air flowing toward the first region  50  and the third region  54 . 
     When seeing  FIGS. 3 and 4 , the third guide  70  is arranged more to the right than the rotational center  42 . Specifically, the third guide  70  is projected to the left from the first region  50  and the third region  54 , not more projected than the rotational center  42 . The first guide  70  is positioned to the right, compared with the rotational center  42 . 
     The third guide  70  can increase the amount of the air supplied to the first region  50  and then increase an air pressure inside the first region  50 . Accordingly, the third guide  70  may increase the air flow exhausted via the outlet hole  36  for the first storage chamber. 
     The third guide  70  may partially shut the air flowing toward the third region  54  and it may guide the air flow toward the first region  50 . In other words, as the third guide  70  is arranged relatively adjacent to the rotational center  42 , a predetermined amount of the air which can flow to the third region  54  from the blower  40  may flow to the third region  50 . Accordingly, the air flowing to the third region  54  may decrease and the air flowing to the first region  50  may increase. 
     Meanwhile, the third guide  70  is getting farther from the rotational center  42  of the blower  40  in a horizontal direction, as getting farther from a specific point  72  in both lateral directions. In other words, the first guide  70  may be extended rightward from the specific point  72 . 
     The third guide  70  may include a first extended piece  74  extended from the specific point  72  in a direction in which the width of the first region  50  is reduced. The first extended piece  74  may be extended to face an upper boundary of the first region  50 , to form a boundary of the first region  50 . 
     The third guide  70  may further include a second extended piece  76  extended in a direction in which the width of the third region  54  is reduced. The second extended piece  76  may be extended to face a left boundary of the third region  54 , to form a boundary of the third region  54 . 
     The penetrating holes  32  may be symmetrically arranged on both sides of the third region  54 . The air is guided only to the third region  54  and the other region in the lower portion of the shroud  10 , except the third region  54  may be less important relatively. 
     Accordingly, the penetrating holes  32  are formed in the region which can be omitted and an auxiliary space can be secured to increase the inner space of the second storage chamber  8 . 
       FIG. 5  is a graph illustrating results of experiments according to one embodiment of the present disclosure. Hereinafter, the results of the experiments will be described, referring to  FIG. 5 . 
     Once the blower  40  rotates in the counter-clockwise direction, the air including cold air positioned in the rear portion of the base  30  is flowing to the front portion of the base  30  via the communication hole  34 . At this time, the air flow may include a mobility rotated in the counter-clockwise direction by the rotation of the blower  40 . 
     The air flow may be performed to the first storage chamber  6  and the second storage chamber  8  via the outlet hole  36  for the first storage chamber, the first outlet hole  22 , the second outlet hole  24 , the third outlet hole  26  and the fourth outlet  28 . 
     A predetermined amount of the air flow blown to the second region  52  by the blower  40  stays in the second region  52 , not flowing to the third region  54  by the first guide  60 . That is because the first guide  60  is arranged relatively closer to the rotational center  42 . The air pressure inside the second region  52  is increased and the air flow exhausted via the second outlet hole  24  may be then increased. 
     As an entrance of the passage of the air guided toward the third region  54  by the first guide  60  gets small, the air flow directly supplied to the third region  54  from the blower  40  is decreased. Those features result in increasing the air flow supplied to the second region  52  and then the air flow exhausted via the second outlet  24  may be increased. 
     Similarly, an entrance of a passage of the air guided toward the third region  54  by the third guide  70  gets small and the air flow directly supplied to the third region  54  from the blower  40  may be decreased. Accordingly, the air flow supplied to the first region  50  is increased and the amount of the air exhausted via the outlet hole  36  for the first storage chamber may be then increased. 
     As shown in  FIG. 5 , the amount of the air supplied outside is 0.54 CMM with respect to an input pressure of 9V supplied to the blower  40 . The amount of the air supplied via the first outlet hole  22  is 0.14 CMM, the amount of the air supplied to the second outlet hole  24  is 0.12C MM. The amount of the air supplied to the third outlet hole  26  is 0.05 CMM and the amount of the air supplied to the fourth outlet hole  28  is 0.13 CMM. Also, the amount of the air supplied to the outlet hole  36  for the first storage chamber is 0.10 CMM. 
     Accordingly, a distribution chart of the entire air amount has 26% of the air amount to the first outlet hole  22 , 22% of the air amount to the second outlet hole  24 , 9% of the air amount to the third outlet hole  26 , 24% of the air amount to the fourth outlet hole  28  and 19% of the air amount to the outlet hole  36  for the first storage chamber. 
     Specifically, the distribution chart of the air supplied to the plurality of the outlet holes is not concentrated on one outlet hole, such that the cold air can be supplied to the second storage chamber  8  as well as to the first storage chamber  6  uniformly. 
       FIG. 6  is a diagram illustrating a base provided in a shroud for a refrigerator according to another embodiment of the present disclosure.  FIG. 7  is a diagram illustrating a cover and the base provided in the shroud for the refrigerator according to the embodiment of  FIG. 6 . Referring to  FIGS. 6 and 7 , the base and the cover provided in the shroud according to another embodiment of the present disclosure will be described. 
     In  FIG. 6 , the cover  20  is removed and a profile of the cover  20  is shown over the base  30  to make an installation position of the cover with respect to the base  30  understood easily. In  FIG. 6 , the profile of the cover is shown as a full line and an inner structure of the base covered by the cover is shown as a dotted line. Also, in  FIG. 6 , the blower  40  provided in the base  30  is removed. 
       FIG. 7  is a diagram illustrating the cover  20  and the base  30  together and it shows a plurality of outlet holes are provided in the cover  20 . 
     In this embodiment, a second guide  80  is additionally provided, compared with the embodiment shown in  FIGS. 3 and 4 . The other elements including the first guide  60 , the third guide  70 , the first region  50 , the second region  52  and the third region  54  may be provided. Accordingly, only the second guide  80  will be described and description of the other same elements is omitted. The descriptions and technical features mentioned above are applied to this embodiment. 
     The shroud  10  may include a second guide  80  provided between the first region  50  and the second region  52 , projected to be closer to the rotational center  42  of the blower  40 . 
     The second guide  80  may be projected toward the rotational center  42 , with a predetermined thickness from an upper boundary between the first region  50  and the second region  52 . At this time, the thickness of the second guide  80  may be determined to allow the second guide  80  to have a predetermined strength for guiding the air flow. 
     The second guide  80  may be arranged on the same vertical line from the rotational center  42 . 
     The second guide  80  may partially shut the air flow toward the second region  52 . In other words, the second guide  80  may form a boundary between the first region  50  and the second region  52  to make a predetermined amount of the air supplied by the blower  40  directly supplied to the first region  50 . 
     The second guide  80  may stop the air flow guided toward the first region  50  from flowing toward the second region  52 , such that the air flow exhausted to the outlet  36  for the first storage chamber and the first outlet hole  22  may be increased. 
     The first outlet hole  22  and the outlet hole  36  for the first storage chamber may be formed in the first region  50 . When the amount of the air accommodated by the first region  50  is increased, the air exhausted to the outlet hole  36  for the first storage chamber and to the first outlet hole  22  can be increased. 
     Especially, a distance between the rotational center  42  and the second guide  80  is smaller than a distance between the specific point  62  of the first guide and the rotational center  42  and the distance is smaller than a distance between the specific point  72  of the third guide  70  and the rotational center  42 . 
     Meanwhile, the distance between the specific point  62  of the first guide  60  and the rotational center  42  may be smaller than the distance between the specific point  72  of the third guide  70  and the rotational center  42 . 
     Specifically, the distance between the rotational center  42  and the second guide  80  is the smallest. The distance between the specific point  62  of the first guide and the rotational center  42  is the middle value. The distance between the specific point  72  of the third guide  70  and the rotational center  42  is the largest. 
       FIG. 8  is a graph illustrating results of experiments according to the embodiment of  FIG. 6 . Referring to  FIG. 8 , the results of the experiments will be descried. 
     Once the blower  40  rotates in the counter-clockwise direction, the air including cold air positioned in the rear portion of the base  30  is flowing to the front portion of the base  30  via the communication hole  34 . At this time, the air flow may include a mobility rotated in the counter-clockwise direction by the rotation of the blower  40 . 
     The air flow may be performed to the first storage chamber  6  and the second storage chamber  8  via the outlet hole  36  for the first storage chamber, the first outlet hole  22 , the second outlet hole  24 , the third outlet hole  26  and the fourth outlet  28 . 
     A predetermined amount of the air flow blown to the second region  52  by the blower  40  stays in the second region  52 , not flowing to the third region  54  by the first guide  60 . That is because the first guide  60  is arranged relatively closer to the rotational center  42 . The air pressure inside the second region  52  is increased and the air flow exhausted via the second outlet hole  24  may be then increased. 
     As an entrance of the passage of the air guided toward the third region  54  by the first guide  60  gets small, the air flow directly supplied to the third region  54  from the blower  40  is decreased. Those factures results in increasing the air flow supplied to the second region  52  and then the air flow exhausted via the second outlet  24  may be increased. 
     Similarly, an entrance of a passage of the air guided toward the third region  54  by the third guide  70  gets small and the air flow directly supplied to the third region  54  from the blower  40  may be decreased. Accordingly, the air flow supplied to the first region  50  is increased and the amount of the air exhausted via the outlet hole  36  for the first storage chamber may be then increased. 
     Also, the air supplied to the first region  50  from the blower  40  by the second guide  80  may be increased. That is because the second guide  80  is arranged between the first region  50  and the second region  52  and because the blower  40  rotates in the counter-clockwise direction. Without the second guide  80 , the air flow directly supplied to the second region  52  might be guided to the first region  50  by the second guide  80 . 
     Especially, after guided to the first region  50  by the second guide  80 , the air flow toward the second region  52  may be decreased. That is because the second guide  80  is projected closer to the rotational center  42  only to shut the air flowing to the second region  52  from the first region  50 . 
     As shown in  FIG. 8 , the amount of the air supplied outside is 0.64 CMM with respect to an input pressure of 9V supplied to the blower  40 . The amount of the air supplied via the first outlet hole  22  is 0.14 CMM, the amount of the air supplied to the second outlet hole  24  is 0.14 CMM. The amount of the air supplied to the third outlet hole  26  is 0.09 CMM and the amount of the air supplied to the fourth outlet hole  28  is 0.13 CMM. Also, the amount of the air supplied to the outlet hole  36  for the first storage chamber is 0.14 CMM. 
     Compared with the embodiment having the input voltage of 9V supplied to the blower  40 , it can be checked that the overall air amount is increased. 
     In addition, a distribution chart of the entire air amount has 22% of the air amount to the first outlet hole  22 , 22% of the air amount to the second outlet hole  24 , 14% of the air amount to the third outlet hole  26 , 20% of the air amount to the fourth outlet hole  28  and 22% of the air amount to the outlet hole  36  for the first storage chamber. 
     Compared with the embodiment mentioned above, this embodiments shows that the overall air amount is increased and that the distribution of the air flow supplied via the plurality of the outlet holes is performed uniformly. 
     Various variations and modifications of the refrigerator described above are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.