Patent Abstract:
The present invention includes a blower sucking and blowing air; a plurality of cylindrical air discharging units, each having an air discharging flow path through which the air blown by the blower passes and discharges, the plurality of air discharging units respectively having rotational center axes parallel with each other; and an air discharging unit rotating mechanism rotating each of the plurality of air discharging units, with the respective rotational center axes of the air discharging units kept in position. The plurality of air discharging units arranged in parallel with each other may distributively discharge air in multiple directions. A distributed air discharge mode in which the plurality of air discharging units discharge air in different directions and a front intensive air discharge mode in which the plurality of air discharging units discharge air in a front direction may be chosen by the user, responding to the user&#39;s demand that the air flow be concentrated in the front direction while enabling efficient indoor air conditioning.

Full Description:
BACKGROUND 
       [0001]    1. Field of the Invention 
         [0002]    The present invention concerns air conditioners, and particularly, to air conditioners having an air discharging unit for discharging air to the outside. 
         [0003]    2. Description of the Related Art 
         [0004]    Air conditioners are devices that suck in air, change the temperature, humidity, or cleanness of the air, and then discharges the air to the outside. 
         [0005]    An air conditioner may include a cooler or heater for changing indoor temperature, a humidifier or dehumidifier for changing indoor humidity, and an air purifier for changing indoor air cleanness. 
         [0006]    An air conditioner may include an air conditioning unit for changing the temperature, humidity, or cleanness of the air and a blower for blowing the air into the air conditioning unit. 
         [0007]    The air conditioning unit may be a heat exchanger or a filter. 
         [0008]    An air conditioner may have an air discharging body such as a header or a diffuser. The air may be changed for at least one of its temperature, humidity, and cleanness inside the air conditioner and may be then discharged via the air discharging body to the outside. 
         [0009]    The air discharging body may be elevatably or rotatably installed at an upper portion of the air conditioner. 
       SUMMARY OF THE INVENTION 
       [0010]    The present invention aims to provide an air conditioner that has a plurality of cylindrical air discharging units for guiding indoor air in multiple directions. 
         [0011]    According to the present invention, an air conditioner comprises: a blower sucking and blowing air; a plurality of cylindrical air discharging units, each having an air discharging flow path through which the air blown by the blower passes and discharges, the plurality of air discharging units respectively having rotational center axes parallel with each other; and an air discharging unit rotating mechanism rotating each of the plurality of air discharging units, with the respective rotational center axes of the air discharging units kept in position. 
         [0012]    The blower may include a first air discharging part blowing air to any one of the plurality of air discharging units and a second air discharging part blowing air to the other of the plurality of air discharging units. 
         [0013]    The air discharging unit rotating mechanism may include a first gear disposed in any one of the plurality of air discharging units; a first gear rotating mechanism rotating the first gear; a second gear disposed in another of the plurality of air discharging units; and a second gear rotating mechanism rotating the second gear. 
         [0014]    The air discharging unit rotating mechanism may include a lower body rotatably supporting a lower portion of a corresponding one of the plurality of air discharging units. 
         [0015]    The air discharging unit rotating mechanism may further include a lower cover, and the lower cover may include a first gear rotating mechanism mounting part where the first gear rotating mechanism is mounted and a second gear rotating mechanism mounting part where the second gear rotating mechanism is mounted. 
         [0016]    The lower cover may include a plurality of couplers coupled with the blower. 
         [0017]    The air discharging unit rotating mechanism may include a lower body rotatably supporting a lower portion of each of the plurality of air discharging units; and a rear body disposed perpendicular to the lower body and rotatably accommodating the plurality of air discharging units. 
         [0018]    The rear body may include a first accommodating part having a recessed surface facing a first air discharging unit among the plurality of air discharging units to rotatably accommodate the first air discharging unit; and a second accommodating part having a recessed surface facing a second air discharging unit among the plurality of air discharging units to rotatably accommodate the second air discharging unit. 
         [0019]    The air discharging unit rotating mechanism may further include a top cover coupled to the rear body and positioned at an upper side of the plurality of air discharging units. 
         [0020]    The top cover may include an axis supporting part rotatably supporting the rotational center axis of a corresponding one of the plurality of air discharging units. 
         [0021]    The air conditioner may further include a center body positioned long in upper and lower directions between the plurality of air discharging units to cover a gap between the plurality of air discharging units. 
         [0022]    The air discharging unit rotating mechanism may include a lower body rotatably supporting a lower portion of a corresponding one of the plurality of air discharging units. 
         [0023]    The center body may be disposed at an upper side of the lower body. 
         [0024]    The air discharging unit rotating mechanism may further include a first air discharging unit rotating mechanism rotating the first air discharging unit among the plurality of air discharging units so that the air discharging flow path of the first air discharging unit is opened to an outside when the air conditioner operates and rotating the first air discharging unit so that at least a portion of the air discharging flow path of the first air discharging unit faces the center body when the air conditioner stops; and a second air discharging unit rotating mechanism rotating the second air discharging unit among the plurality of air discharging units so that the air discharging flow path of the second air discharging unit is opened to the outside when the air conditioner operates and rotating the second air discharging unit so that at least a portion of the air discharging flow path of the second air discharging unit faces the center body when the air conditioner stops. 
         [0025]    The air discharging unit rotating mechanism may further include a rear body formed perpendicular to the lower body and rotatably accommodating a corresponding one of the plurality of air discharging units. 
         [0026]    The rear body may include a first accommodating part having a recessed surface facing a first air discharging unit among the plurality of air discharging units to rotatably accommodate the first air discharging unit; and a second accommodating part having a recessed surface facing a second air discharging unit among the plurality of air discharging units to rotatably accommodate the second air discharging unit. 
         [0027]    The first air discharging unit may have a first air outlet at a periphery thereof, and the second air discharging unit has a second air outlet at a periphery thereof. A left-right width of the first air outlet may be smaller than a width between a left side end of the first accommodating part and the center body, and a left-right width of the second air outlet may be smaller than a width between a right side end of the second accommodating part and the center body. 
         [0028]    The rear body may have a center body coupler to which the center body is coupled. The center body coupler may project in a front direction. 
         [0029]    The center body coupler may project between the plurality of air discharging units. 
         [0030]    The center body and the center body coupler may partition, left and right, an upper side of the lower body. 
         [0031]    The center body may include a center case with a left side surface facing any one of the plurality of air discharging units, a right side surface facing the other of the plurality of air discharging units, and an opened front surface; a center cover disposed before the center case; and a PCB assembly provided in the center case to radiate light to the center cover. 
         [0032]    The air discharging unit rotating mechanism may include a center body coupler projecting to a space between the plurality of air discharging units. 
         [0033]    The center case may be coupled to the center body coupler. The left-right width of the center case may increase in the front direction thereof. 
         [0034]    A left-right width of the center cover may be larger than a left-right width of an end of the center body coupler. 
         [0035]    According to the present invention, an air conditioner comprises: a blower sucking and blowing air; a plurality of cylindrical air discharging units, each having an air discharging flow path through which the air blown by the blower passes and discharges; and an air discharging unit holder keeping the plurality of air discharging units in parallel with each other. 
         [0036]    The blower may include a first air discharging part blowing air to any one of the plurality of air discharging units and a second air discharging part blowing air to the other of the plurality of air discharging units. 
         [0037]    The left side surface, right side surface, and front surface of the air discharging unit holder may be opened. 
         [0038]    The air discharging unit holder may include a lower body supporting a lower portion of each of the plurality of air discharging units. 
         [0039]    The air discharging unit holder may further include a rear body formed perpendicular to the lower body and accommodating a corresponding one of the plurality of air discharging units. 
         [0040]    The rear body may include a first accommodating part having a recessed surface facing a first air discharging unit among the plurality of air discharging units to rotatably accommodate the first air discharging unit; and a second accommodating part having a recessed surface facing a second air discharging unit among the plurality of air discharging units to rotatably accommodate the second air discharging unit. 
         [0041]    The air discharging unit holder may further include a top cover coupled to the rear body and positioned at an upper side of the plurality of air discharging units. 
         [0042]    The top cover may have an air discharging unit supporting part supporting the air discharging units. 
         [0043]    The air conditioner may further include a center body positioned long in upper and lower directions between the plurality of air discharging units to cover a gap between the plurality of air discharging units. 
         [0044]    The air discharging unit holder may include a lower body supporting a lower portion of each of the plurality of air discharging units, and the center body may be disposed at an upper side of the lower body. 
         [0045]    The air discharging unit holder may further include a rear body formed perpendicular to the lower body and accommodating a corresponding one of the plurality of air discharging units. 
         [0046]    The rear body may have a center body coupler to which the center body is coupled. The center body coupler may project in a front direction. 
         [0047]    The center body coupler may project between the plurality of air discharging units. 
         [0048]    The center body and the center body coupler may partition, left and right, an upper side of the lower body. 
         [0049]    The center body may include a center case with a left side surface facing any one of the plurality of air discharging units, a right side surface facing the other of the plurality of air discharging units, and an opened front surface; a center cover disposed before the center case; and a PCB assembly provided in the center case to radiate light to the center cover. 
         [0050]    The center case may be coupled to the center body coupler. The left-right width of the center case may increase in the front direction thereof. 
         [0051]    According to the present invention, the plurality of air discharging units arranged in parallel with each other may distribute and discharge air in multiple directions. 
         [0052]    According to the present invention, a distributed air discharge mode in which the plurality of air discharging units discharge air in different directions and a front intensive air discharge mode in which the plurality of air discharging units discharge air in a front direction may be chosen by the user, responding to the user&#39;s demand that the air flow be evenly distributed over the entire room or be concentrated in the front direction while enabling efficient indoor air conditioning. 
         [0053]    The plurality of air discharging units may be stably supported without overturn. 
         [0054]    The gap between the plurality of air discharging units is covered, thus preventing any accident that may occur when the user puts his hand or something else in the gap while minimizing inflow of foreign materials between the plurality of air discharging units. 
         [0055]    Further, when the air conditioner stops, the air discharging flow paths of the air discharging units may be shielded, which eliminates the need of a separate door for covering the air discharging flow paths. Accordingly, the air discharging flow paths of the air discharging units may remain clean with a simple configuration. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0056]    Features and advantages of the present invention may be better understood from the following description of embodiments thereof taken in conjunction with the accompanying drawings, wherein: 
           [0057]      FIG. 1  is an exploded perspective view illustrating an air discharging unit and a blower of an air conditioner according to an embodiment of the present invention; 
           [0058]      FIG. 2  is a front view illustrating an air conditioner according to an embodiment of the present invention; 
           [0059]      FIG. 3  is a cross-sectional view taken along line A-A of  FIG. 2 ; 
           [0060]      FIG. 4  is a cross-sectional view taken along line B-B of  FIG. 2 ; 
           [0061]      FIG. 5  is an exploded perspective view illustrating the blower shown in  FIG. 1 ; 
           [0062]      FIG. 6  is an exploded perspective view illustrating the air discharging unit of  FIG. 1  and an air discharging unit holder; 
           [0063]      FIG. 7  is a cross-sectional view illustrating an air conditioner when a plurality of air discharging units all discharge air in a front direction, according to an embodiment of the present invention; 
           [0064]      FIG. 8  is a cross-sectional view illustrating an air conditioner when a plurality of air discharging units respectively discharge air in opposite directions (in left and right directions, respectively), according to an embodiment of the present invention; 
           [0065]      FIG. 9  is a cross-sectional view illustrating an air conditioner when a plurality of air discharging units respectively discharge air in inclined directions respectively between the front direction and a side direction and between the front direction and the other side direction, according to an embodiment of the present invention; 
           [0066]      FIG. 10  is a cross-sectional view illustrating an air conditioner when the air conditioner stops its operation, according to an embodiment of the present invention; and 
           [0067]      FIG. 11  is an expanded cross-sectional view illustrating a center body of an air conditioner according to an embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION 
       [0068]    Hereinafter, embodiments of the present invention are described in detail with reference to the accompanying drawings. 
         [0069]      FIG. 1  is an exploded perspective view illustrating an air discharging unit and a blower of an air conditioner according to an embodiment of the present invention.  FIG. 2  is a front view illustrating an air conditioner according to an embodiment of the present invention.  FIG. 3  is a cross-sectional view taken along line A-A of  FIG. 2 .  FIG. 4  is a cross-sectional view taken along line B-B of  FIG. 2 .  FIG. 5  is an exploded perspective view illustrating the blower shown in  FIG. 1 . 
         [0070]    The air conditioner includes a blower  2  and a plurality of cylindrical air discharging units  4  and  5  each having an air discharging flow path through which the air blown by the blower  2  passes and discharges. 
         [0071]    The plurality of air discharging units  4  and  5  may be disposed to have rotational center axes P and Q parallel with each other. The air conditioner includes an air discharging unit rotating mechanism  6  for rotating the plurality of air discharging units  4  and  5 . The air discharging unit rotating mechanism  6  may rotate the plurality of air discharging units  4  and  5 , with the respective rotational center axes P and Q of the air discharging units  4  and  5  maintaining their respective positions. The plurality of air discharging units  4  and  5  may be left by the air discharging unit rotating mechanism  6  to keep their respective rotational center axes P and Q in parallel with each other. The air conditioner includes an air discharging unit holder  7  for keeping the plurality of air discharging units  4  and  5  in parallel with each other. The air discharging unit holder  7  may constitute a portion of the air discharging unit rotating mechanism  6 . The air discharging unit rotating mechanism  7  may keep the respective rotational center axes P and Q of the air discharging units  4  and  5  maintaining their respective positions. Each of the air discharging units  4  and  5  may be left in position by the air discharging unit holder  7 , and the respective rotational center axes P and Q of the air discharging units  4  and  5  may remain in position by the air discharging unit holder  7 . 
         [0072]    The air conditioner may include a casing  10  forming the outer appearance as shown in  FIGS. 2 to 4 . 
         [0073]    The casing  10  may include a base  11 . The base  11  may have a stereoscopic shape with its front and top surfaces opened. The base  11  may include a lower frame  12  and a rear plate part  13  formed on the lower frame  12 . The rear plate part  13  may be vertically formed at a rear portion of the lower frame  12 . 
         [0074]    The casing  10  may further include a front cover  15 . The front cover  15  may be provided to cover the front side of the blower  2 . The bottom of the front cover  15  may be mounted on the lower frame  12  of the base  11 . The front cover  15  may be provided at the lower frame  12  to shield a portion of the lower frame  12 . 
         [0075]    The casing  10  may include a sucking body  16  through which air is sucked into the inside of the air conditioner. The sucking body  16  may be provided at the top of the base  11 . The sucking body  16  may be provided at the top of the rear plate part  13  of the base  11 . The sucking body  16  may be provided long in upper and lower directions at the top of the rear plate part  13  of the base  11 . The sucking body  16  may include an air inlet  16 A through which air is sucked from outside of the air conditioner into the inside of the air conditioner. The sucking body  16  may include a purifying unit  17  for purifying the air sucked into the air conditioner. The purifying unit  17  may include a filter for filtering foreign bodies from the air passing therethrough. The purifying unit  17  may include an electric dust collector that attracts and collects dust from air by electrification. The purifying unit  17  may include an ion generator for generating ions in the air. 
         [0076]    The air conditioner may include a heat exchanger  18  provided inside the casing  10  to exchange heat between the air and a coolant. The heat exchanger  18  may be positioned between the sucking body  16  and the blower  2  in an air flowing direction. 
         [0077]    Air may be sucked from outside the air conditioner through the sucking body  16  to the inside of the air conditioner, and the air may then pass through the heat exchanger  18 . After passing through the heat exchanger  18 , the air may be sucked into the blower  2  and may be then blown by the blower  2  to the plurality of air discharging units  4  and  5 . 
         [0078]    Of the air having passed through the heat exchanger  18 , a portion may be blown by one of the plurality of air discharging units  4  and  5  and the remainder by the other of the plurality of air discharging units  4  and  5 . The air may be distributed by the blower  2  into the plurality of air discharging units  4  and  5 , and the distributed air may be distributively discharged into the room through the plurality of air discharging units  4  and  5 . 
         [0079]    The blower  2  may be installed inside the casing  10 . The blower  2  may be installed opposite a portion of the heat exchanger  18 . The blower  2  may be positioned at a front side of the heat exchanger  18 . The blower  2  may suck air from a rear side thereof and blow the air in an upper direction. 
         [0080]    The blower  2  includes a first air discharging part  22  for blowing air to the air discharging flow path  44  of one 4 of the plurality of air discharging units  4  and  5  and a second air discharging part  24  for blowing the air to the air discharging flow path  54  of the other 5 of the plurality of air discharging units  4  and  5 . The blower  2  may distributively discharge the air sucked through a sucking part to the first air discharging part  22  and the second air discharging part  24 . The blower  2  may include a plurality of sucking parts  21  and  23 . The blower  2  may suck air through the first sucking part  21  of the plurality of sucking parts  21  and  23  and then blow the air to the first air discharging part  22  or may suck air through the second sucking part  23  of the plurality of sucking parts  21  and  23  and then blow the air to the second air discharging part  24 . In the case of having the plurality of sucking parts  21  and  23 , the blower  2  may include a first air blowing flow path through which the air sucked through the first sucking part  21  is discharged to the second air discharging part  22  and a second air blowing flow path through which the air sucked through the second sucking part  23  is discharged to the second air discharging part  24 . In the case of having the plurality of sucking parts  21  and  23 , the blower  2  may include a first blower  25  rotated in the first air blowing flow path and a first fan motor  26  for rotating the first blower  25 , and the blower  2  may further include a second blower  27  rotated in the second air blowing flow path and a second fan motor  28  for rotating the second blower  27 . 
         [0081]    The blower  2  may include a first fan housing  31  having the first fan motor  26  mounted therein and surrounding the first blower  25  and a first orifice  32  coupled with the first fan housing  31  and having the first sucking part  21  for guiding air to the first blower  25 . 
         [0082]    The first fan motor  26  may be mounted in the first fan housing  31  by a first fan motor mounter  39 . 
         [0083]    The blower  2  may include a second fan housing  33  having the second fan motor  28  mounted therein and surrounding the second blower  27  and a second orifice  34  coupled with the second fan housing  33  and having the second sucking part  23  for guiding air to the second blower  27 . 
         [0084]    The second fan motor  28  may be mounted in the second fan housing  33  by a second fan motor mounter  40 . 
         [0085]    The second fan housing  33  may be formed at an upper side of the first orifice  32  integrally with the first orifice  32 . The second orifice  34  may be coupled with the second fan housing  33  at a rear side of the second fan housing  33 , and the first fan housing  31  may be coupled with the first orifice  32  at a front side of the first orifice  32 . 
         [0086]    The first air discharging part  22  may be formed by the first fan housing  31  and the second fan housing  33  as shown in  FIG. 3 . The first fan housing  31  may include a first front duct part  35  with an opened rear surface, which projects in an upper direction and is disposed at a front side of a portion of the second fan housing  33 . The second fan housing  31  may include a first rear duct part  36  that is positioned at a rear side of the first front duct part  35  and is recessed in a rear direction. The first front duct part  35  and the first rear duct part  36  may guide the air blown by the first blower  25  to the first air discharging unit  4 . When the first fan housing  31  and the second fan housing  33  are coupled with each other so that the first front duct part  35  is positioned at a front side of the first rear duct part  36 , the first front duct part  35  and the first rear duct part  36  may constitute a duct unit shaped as a hollow cylinder. 
         [0087]    The second air discharging part  24  may be formed by the second fan housing  33  and the second orifice  34  as shown in  FIG. 4 . The second fan housing  31  may have a second front duct part  37  with an opened rear surface, which projects in a front direction and positions itself at a front side of a portion of the second orifice  34 . The second orifice  34  may include a second rear duct part  38  that is positioned at a rear side of the second front duct part  37  and is recessed in a rear direction. The second front duct part  37  and the second rear duct part  38  may guide the air blown by the second blower  27  to the second air discharging unit  5 . When the second fan housing  33  and the second orifice  34  are coupled with each other so that the second front duct part  37  is positioned at a front side of the second rear duct part  38 , the second front duct part  37  and the second rear duct part  38  may constitute a duct unit shaped as a hollow cylinder. 
         [0088]    The plurality of air discharging units  4  and  5  may guide the air blown by the blower  2  to the outside. The plurality of air discharging units  4  and  5  may distributively discharge the air coming from the blower  2  to the outside, with the air discharging units  4  and  5  disposed in parallel with each other. The plurality of air discharging units  4  and  5  may be spaced apart from each other in a horizontal direction. A gap may be present between the plurality of air discharging units  4  and  5 . Two, three, or more air discharging units  4  and  5  may be provided. The plurality of air discharging units  4  and  5  may have the same structure but different positions. 
         [0089]    The plurality of air discharging units  4  and  5 , each, may have an inlet through which the air blown by the blower  2  passes into the inside thereof. The plurality of air discharging units  4  and  5 , each, may have an internal flow path that guides the air introduced through the inlet. The plurality of air discharging units  4  and  5 , each, may have an air outlet through which the air passing through the internal flow path is discharged to the outside of the air conditioner. The air inlet, the internal flow path, and the air outlet may form the air discharging flow path of the air discharging unit  4  and  5 . The air blown by the blower  2  may flow through the inlet into the internal flow path, and the air may be then discharged through the internal flow path to the outside. 
         [0090]    In case two air discharging units  4  and  5  are provided, the plurality of air discharging units  4  and  5  may include a first air discharging unit  4  and a second air discharging unit  5 . In this case, the first air discharging unit  4  and the second air discharging unit  5 , respectively, may be installed left and right with respect to the central line C of the air conditioner. One of the first air discharging unit  4  and the second air discharging unit  5  may be a left air discharging unit that is positioned at a left side of the central line C of the air conditioner. The other of the first air discharging unit  4  and the second air discharging unit  5  may be a right air discharging unit that is positioned at a right side of the central line C of the air conditioner. The left air discharging unit may discharge air from the left side of the air conditioner to the front side of the air conditioner, and the right air discharging unit may discharge air from the right side of the air conditioner to the front side of the air conditioner. 
         [0091]    The first air discharging unit  4  and the second air discharging unit  5  may discharge air in opposite directions thereof. The first air discharging unit  4  may discharge air in a left direction of the air conditioner, and in this case, the second air discharging unit  5  may discharge air in a right direction of the air conditioner. 
         [0092]    The first air discharging unit  4  may discharge air in a first inclined direction that is a left and front direction of the air conditioner, and the second air discharging unit  5  may discharge air in a second inclined direction that is a right and front direction of the air conditioner. 
         [0093]    The first air discharging unit  4  may discharge air in a front direction of the air conditioner, and the second air discharging unit  5  may discharge air in the front direction of the air conditioner. In this case, the first air discharging unit  4  and the second air discharging unit  5  may discharge air in directions parallel with each other, and two front air flows may be created at a front side of the air conditioner. 
         [0094]    Of the plurality of air discharging units  4  and  5 , the first air discharging unit  4  may include a first air inlet  41  through which the air blown by the blower  2  is introduced, a first internal flow path  42  for guiding the air having passed through the first air inlet  41 , and a first air outlet  43  through which the air guided by the first internal flow path  42  is discharged to the outside. The first air inlet  41 , the first internal flow path  42 , and the first air outlet  43  may constitute the first air discharging flow path  44  of the first air discharging unit  4 . 
         [0095]    A first wind direction adjusting vane  45  may be disposed in the first air discharging unit  4  to adjust the direction of air passing through the first air discharging flow path  44 . The first wind direction adjusting vane  45  may be rotatably disposed inside the first air discharging unit  4 . The first wind direction adjusting vane  45  may be positioned at the first internal flow path  42 , with its tip facing the first air outlet  43 . 
         [0096]    The first air inlet  41  may be formed at a lower portion of the first air discharging unit  4  to pass therethrough in upper and lower directions. The first internal flow path  42  may be formed long in upper and lower directions inside the first air discharging unit  4 . The first air outlet  43  may be formed at an outer circumferential portion of the first air discharging unit  4 . The first air discharging unit  4  may be shaped so that its upper surface is closed, and the first air outlet  43  may be formed at the outer circumferential portion of the first air discharging unit  4  among a top plate part and the outer circumferential portion of the first air discharging unit  4 . The first air outlet  43  may be formed at the outer circumferential portion of the first air discharging unit  4  to pass therethrough in a horizontal direction. The first air outlet  43  may be formed long in upper and lower directions of the first air discharging unit  4  at the outer circumferential portion of the first air discharging unit  4 . The opened direction of the first air inlet  41  may be perpendicular with the opened direction of the first air outlet  43 . After flowing through the first air inlet  41  to the inside of the first air discharging unit  4 , the air changes its flow direction, and may be discharged through the first air outlet  43  in a horizontal direction. 
         [0097]    Of the plurality of air discharging units  4  and  5 , the second air discharging unit  5  may include a second air inlet  51  through which the air blown by the blower  2  is introduced, a second internal flow path  52  for guiding the air having passed through the second air inlet  51 , and a second air outlet  53  through which the air guided by the second internal flow path  52  is discharged to the outside. The second air inlet  51 , the second internal flow path  52 , and the second air outlet  53  may constitute the second air discharging flow path  54  of the second air discharging unit  5 . 
         [0098]    A second wind direction adjusting vane  55  may be disposed in the second air discharging unit  5  to adjust the direction of air passing through the second air discharging flow path  54 . The second wind direction adjusting vane  55  may be rotatably disposed inside the second air discharging unit  5 . The second wind direction adjusting vane  55  may be positioned at the second internal flow path  52 , with its tip facing the second air outlet  53 . 
         [0099]    The second air inlet  51  may be formed at a lower portion of the second air discharging unit  5  to pass therethrough in upper and lower directions. The second internal flow path  52  may be formed long in upper and lower directions inside the second air discharging unit  5 . The second air outlet  53  may be formed at an outer circumferential portion of the second air discharging unit  5 . The second air discharging unit  5  may be shaped so that its upper surface is closed, and the second air outlet  53  may be formed at the outer circumferential portion of the second air discharging unit  5  among a top plate part and the outer circumferential portion of the second air discharging unit  5 . The second air outlet  53  may be formed at the outer circumferential portion of the second air discharging unit  5  to pass therethrough in a horizontal direction. The second air outlet  53  may be formed long in upper and lower directions of the second air discharging unit  5  at the outer circumferential portion of the second air discharging unit  5 . The opened direction of the second air inlet  51  may be perpendicular with the opened direction of the second air outlet  53 . After flowing through the second air inlet  51  to the inside of the second air discharging unit  5 , the air changes its flow direction, and may be discharged through the second air outlet  53  in a horizontal direction. 
         [0100]    The air discharging unit rotating mechanism  6  may include a lower body  100  for supporting each of the plurality of air discharging units  4  and  5 . The lower body  100  may rotatably support each of the plurality of air discharging units  4  and  5 . The air discharging unit holder  7  may include the lower body  100 . The plurality of air discharging units  4  and  5  may be seated on the lower body  100 , spaced apart from the lower body  100 , and the load of the plurality of air discharging units  4  and  5  may be distributed on the lower body  100 . The lower body  100  may be a portion of the air discharging unit holder  7 . The lower body  100  may form a lower portion of the air discharging unit holder  7 . 
         [0101]    The air discharging unit rotating mechanism  6  may further include a lower cover  110  installed in the lower body  100 . The lower cover  110  may be coupled at an upper portion of the blower  2 , and the lower cover  110  may mount the air discharging unit rotating mechanism  6  to the blower  2 . The lower cover  110 , together with the lower body  100 , may constitute the air discharging unit holder  7 . The lower cover  110  may function as an air discharging unit holder mounter for mounting the air discharging unit holder  7  to the blower  2 . 
         [0102]    The air discharging unit rotating mechanism  6  may further include a rear body  120  that is formed to be perpendicular with the lower body  100  and accommodates the plurality of air discharging units  4  and  5 . The rear body  120  may be formed perpendicular with the lower body  100  and may rotatably accommodate the plurality of air discharging units  4  and  5 . The rear body  120  may be integrally formed with the lower body  100  at a rear side of the lower body  100 . The rear body  120  may be formed separately from the lower body  100  and may be coupled with a rear portion of the lower body by way of a connecting member such as screws or hooks. The rear body  120 , together with the lower body  100 , may constitute the air discharging unit holder  7 . The rear body  120  may be formed to be larger in size than the gap between the plurality of air discharging units  4  and  5 . The rear body  120  may shield the gap between the plurality of air discharging units  4  and  5  at a rear side of the plurality of air discharging units  4  and  5 . The left-right width of the lower body  100  may be smaller than the width between a left side end of the first air discharging unit  4  and a right side end of the second air discharging unit  5 . 
         [0103]    The air discharging unit rotating mechanism  6  may further include a top cover  140  that is coupled with the rear body  120  and that is positioned at an upper side of the plurality of air discharging units  4  and  5 . The top cover  140 , together with the rear body  120  and the lower body  100 , may constitute the air discharging unit holder  7 . The top cover  140  may keep an upper portion of the plurality of air discharging units  4  and  5  in position. The top cover  140  may have an air discharging unit position maintaining part for keeping the plurality of air discharging units  4  and  5  in position. The top cover  140  may have axis supporting parts  142  and  144  for rotatably supporting the rotational center axes of the plurality of air discharging units  4  and  5 . The axis supporting parts may function as air discharging unit position maintaining parts. The number of axis supporting parts  142  and  144  may be the same as the number of air discharging units  4  and  5 . In case the plurality of air discharging units  4  and  5  include the first air discharging unit  4  and the second air discharging unit  5 , the axis supporting parts  142  and  144  may include a first axis supporting part  142  for rotatably supporting the rotational center axis of the first air discharging unit  4  and a second axis supporting part  144  for rotatably supporting the rotational center axis of the second air discharging unit  5 . 
         [0104]    In case the air discharging unit holder  7  includes all of the lower body  100 , the rear body  120 , and the top cover  140 , the overall air discharging unit holder  7  may be positioned at rear and upper sides of the air discharging units  4  and  5 . The air discharging unit holder  7  may be shaped substantially as the letter “L” to surround the rear and upper sides of the air discharging units  4  and  5 . 
         [0105]    The air conditioner may further include a center body  150  that is positioned long in upper and lower directions between the plurality of air discharging units  4  and  5  to cover the gap between the plurality of air discharging units  4  and  5 . The center body  150  may be positioned at an upper side of the lower body  100 . A portion of the center body  150  may be positioned at a lower side of the top cover  140 , and the center body  150  may shield the gap between the plurality of air discharging units  4  and  5  between the lower body  100  and the top cover  140 . 
         [0106]    The air discharging unit rotating mechanism  6  may open a left side surface and a right side surface, each. The air discharging unit holder  7  may form the outer appearance of the air discharging unit rotating mechanism  6 , and the air discharging unit holder  7  may be shaped so that the left side surface, right side surface, and front surface thereof are opened. 
         [0107]    The air discharging unit holder  7  may play a role as a sort of frame that keeps the plurality of air discharging units  4  and  5  in parallel with each other, and the plurality of air discharging units  4  and  5  may be positioned left and right about the air discharging unit holder  7  to be spaced apart from each other. 
         [0108]    The center body  150  may be installed in the air discharging unit holder  7  to partition the air discharging unit holder  7  left and right. In the air conditioner configured so, the space between the left side of the center body  150  and the left side end of the rear body  120  may be opened, and the space between the right side of the center body  150  and the right side end of the rear body  120  may be opened. The first air discharging unit  4  may be installed to be partially positioned between the left side of the center body  150  and the left side end of the rear body  120 . The second air discharging unit  5  may be installed to be partially positioned between the right side of the center body  150  and the right side end of the rear body  120 . The first air discharging unit  4  and the second air discharging unit  5  may be protected by the center body  150  and the air discharging unit holder  7 . 
         [0109]    The center body  150  may be formed separately from the lower body  100 , the rear body  120 , and the top cover  140 , and may be coupled with at least one of the lower body  100 , the rear body  120 , and the top cover  140 . The center body  150  may be integrally formed with at least one of the lower body  100 , the rear body  120 , and the top cover  140 , and in such case, the center body  150  may be part of the air discharging unit holder  7 . 
         [0110]    The center body  150  may be positioned at a front side of the air discharging unit holder  7  among the front side and a rear side of the air discharging unit holder  7 , and the center body  150  may be positioned at the front and center of the air discharging unit holder  7 , among the front and left side, the front and center, and the front and right side of the air discharging unit holder  7 . The air discharging unit holder  7  may be opened for its left side surface, right side surface, front and left side, and front and right side. 
         [0111]      FIG. 6  is an exploded perspective view illustrating the air discharging unit of  FIG. 1  and an air discharging unit holder.  FIG. 7  is a cross-sectional view illustrating an air conditioner when a plurality of air discharging units all discharge air in a front direction, according to an embodiment of the present invention.  FIG. 8  is a cross-sectional view illustrating an air conditioner when a plurality of air discharging units respectively discharge air in opposite directions (in left and right directions, respectively), according to an embodiment of the present invention.  FIG. 9  is a cross-sectional view illustrating an air conditioner when a plurality of air discharging units respectively discharge air in inclined directions respectively between the front direction and a side direction and between the front direction and the other side direction, according to an embodiment of the present invention.  FIG. 10  is a cross-sectional view illustrating an air conditioner when the air conditioner stops its operation, according to an embodiment of the present invention. 
         [0112]    A first air discharging unit  4  may be constitute of an assembly of a plurality of members. The first air discharging unit  4  may include a first air discharging body  46  having a first air discharging flow path  44 , a first top body  47  provided at an upper side of the first air discharging body  46 , and a first lower ring  48  coupled with a lower portion of the first air discharging body  46 . 
         [0113]    The first air discharging body  46  may be shaped as a cylinder with a closed top surface and an opened bottom surface. The first air inlet  41 , the first internal flow path  42 , and the first air outlet  43  as shown in  FIG. 3  may be formed in the first air discharging body  46 , and the first air outlet  43  may be formed at a portion of the outer circumferential portion of the first air discharging body  46 . 
         [0114]    Meanwhile, the first wind direction adjusting vane  45  as shown in  FIG. 3  may be rotatably disposed in the first air discharging body  46 . The first air discharging body  46  may include a first wind direction adjusting motor (not shown) for generating a dynamic force for rotating the first wind direction adjusting vane  45 . The first wind direction adjusting motor may be connected with the wind direction adjusting vane  45  directly or via a dynamic force transferring member such as a link. 
         [0115]    The first air discharging body  46  may have a first rotational protrusion  46 C that projects forming the rotational center axis of the first air discharging unit  4 . 
         [0116]    The first air discharging body  46  may be constituted of an assembly of a plurality of members. The first air discharging body  46  may include a first outer body  46 A for forming the outer appearance of the first air discharging body  46  and a first inner guide  46 B provided inside the first outer body  46 A. 
         [0117]    The first outer body  46 A may be overall shaped as a hollow cylinder. The first outer body  46 A may be opened for its top and bottom and may have a space therein to accommodate the first inner guide  46 B. The first outer body  46 A may be formed so that a plurality of outer bodies each having an arc-shaped cross section are coupled into a hollow cylinder shape, and one of the plurality of outer bodies may have the first air outlet  43  where a first air discharging grill is formed. 
         [0118]    The first inner guide  46 B may be shaped as a hollow bucket with an opened bottom surface and a closed top surface. The first air inlet  41  may be formed at a lower portion of the first inner guide  46 B, and the first internal flow path  42  may be formed inside the first inner guide  46 B. The first wind direction adjusting vane  45  may be rotatably connected with the first inner guide  46 B. 
         [0119]    The first top body  47  may be an electric wire guide for guiding a first electric wire (not shown) connected to the first wind direction adjusting motor (not shown), and the first top body  47  may have an electric wire through hole  47 A through which the first electric wire passes. 
         [0120]    The first top body  47  may be press fitted into an upper portion of the first air discharging body  46  or may be mounted to the upper portion of the first air discharging body  46  by way of a screw or other connecting members. 
         [0121]    The first top body  47  may have a first boss part  47 B that projects in an upper direction to surround the first rotational protrusion  46 C. The first boss part  47 B, together with the first rotational protrusion  46 C, may constitute the rotational center axis of the first air discharging unit  4 . The first boss part  47 B may be positioned between the first rotational protrusion  46 C and the first axis supporting part  142  of the top cover  140  and may be supported by the first axis supporting part  142 . In other words, the first air discharging unit  4  may be rotatably kept in position at the top cover  140  by the first rotational protrusion  46 C and the first boss part  47 B. 
         [0122]    The first lower ring  48  may be coupled with a lower portion of the first air discharging body  46  and may be rotated along with the first air discharging body  46 . The first lower ring  48  may be coupled with the first air discharging body  46  by way of a screw or other connecting members. The first lower ring  48  may have a connecting member through hole through which a screw or other connecting member passes. 
         [0123]    The first lower ring  48  may be seated in the lower body  100  and may rub against the lower body  100 . The first lower ring  48  may be formed of metal to reinforce the strength of the first air discharging body  46  while preventing the first air discharging body  46  from being worn. 
         [0124]    The second air discharging unit  5  may have the same configuration as the first air discharging unit  4 , and like the first air discharging unit  4 , may be formed of an assembly of a plurality of members. The second air discharging unit  5  may include a second air discharging body  56  having a second air discharging flow path  54 , a second top body  57  provided at an upper side of the second air discharging body  56 , and a second lower ring  58  coupled with a lower portion of the second air discharging body  56 . 
         [0125]    Like the first air discharging body  46 , the second air discharging body  56  may be shaped as a cylinder with a closed top surface and an opened bottom surface. The second air inlet  51 , the second internal flow path  52 , and the second air outlet  53  as shown in  FIG. 4  may be formed in the second air discharging body  56 , and the second air outlet  53  may be formed at a portion of the outer circumferential portion of the second air discharging body  56 . 
         [0126]    Meanwhile, the second wind direction adjusting vane  55  as shown in  FIG. 4  may be rotatably disposed in the second air discharging body  56 . The second air discharging body  56  may include a second wind direction adjusting motor (not shown) for generating a dynamic force for rotating the second wind direction adjusting vane  55 . The second wind direction adjusting motor may be connected with the wind direction adjusting vane  55  directly or via a dynamic force transferring member such as a link. 
         [0127]    The second air discharging body  56  may have a second rotational protrusion  56 C that projects forming the rotational center axis of the second air discharging unit  5 . 
         [0128]    The second air discharging body  56  may be constituted of an assembly of a plurality of members. The second air discharging body  56  may include a second outer body  56 A for forming the outer appearance of the second air discharging body  56  and a second inner guide  56 A provided inside the second outer body  56 B. 
         [0129]    The second outer body  56 A may be overall shaped as a hollow cylinder. The second outer body  56 A may be opened for its top and bottom and may have a space therein to accommodate the second inner guide  56 B. The second outer body  56 A may be formed so that a plurality of outer bodies each having an arc-shaped cross section are coupled into a hollow cylinder shape, and one of the plurality of outer bodies may have the second air outlet  53  where a second air discharging grill is formed. 
         [0130]    The second inner guide  56 B may be shaped as a hollow bucket with an opened bottom surface and a closed top surface. The second air inlet  51  may be formed at a lower portion of the second inner guide  56 B, and the second internal flow path  52  may be formed inside the second inner guide  56 B. The second wind direction adjusting vane  55  may be rotatably connected with the second inner guide  56 B. 
         [0131]    The second top body  57  may be an electric wire guide for guiding a second electric wire (not shown) connected to the second wind direction adjusting motor (not shown), and the second top body  57  may have an electric wire through hole  57 A through which the second electric wire passes. 
         [0132]    The second top body  57  may be press fitted into an upper portion of the second air discharging body  56  or may be mounted to the upper portion of the second air discharging body  56  by way of a screw or other connecting members. 
         [0133]    The second top body  57  may have a second boss part  57 B that projects in an upper direction to surround the second rotational protrusion  56 C. The second boss part  57 B, together with the second rotational protrusion  56 C, may constitute the rotational center axis of the second air discharging unit  5 . The second boss part  57 B may be positioned between the second rotational protrusion  56 C and the second axis supporting part  144  of the top cover  140  and may be supported by the second axis supporting part  144 . In other words, the second air discharging unit  5  may be rotatably kept in position at the top cover  140  by the second rotational protrusion  56 C and the second boss part  57 B. 
         [0134]    The second lower ring  58  may be coupled with a lower portion of the second air discharging body  56  and may be rotated along with the second air discharging body  56 . The second lower ring  58  may be coupled with the second air discharging body  56  by way of a screw or other connecting members. The second lower ring  58  may have a connecting member through hole through which a screw or other connecting member passes. 
         [0135]    The second lower ring  58  may be seated in the lower body  100  and may rub against the lower body  100 . The second lower ring  58  may be formed of metal to reinforce the strength of the second air discharging body  56  while preventing the second air discharging body  56  from being worn. 
         [0136]    The air conditioner may include a first air discharging unit rotating mechanism  8  for rotating the first air discharging unit  4  among the plurality of air discharging units  4  and  5  and a second air discharging unit rotating mechanism  9  for rotating the second air discharging unit  5  among the plurality of air discharging units  4  and  5 . The first air discharging unit rotating mechanism  8  and the second air discharging unit rotating mechanism  9 , together with the air discharging unit holder  7 , may constitute the air discharging unit rotating mechanism  6 . 
         [0137]    The first air discharging unit rotating mechanism  8  may rotate the first air discharging unit  4  while keeping the rotational center axis P of the first air discharging unit  4  in position. The first air discharging unit rotating mechanism  8  may rotate the first air discharging unit  4  among the plurality of air discharging units  4  and  5  so that the air discharging flow path  44  of the first air discharging unit  4  is opened to the outside, as shown in  FIGS. 7 to 9 . The first air discharging unit rotating mechanism  8  may rotate the first air discharging unit  4  so that at least a portion of the first air discharging unit  4  faces the center body  150  when the air conditioner stops its operation as shown in  FIG. 10 . 
         [0138]    The second air discharging unit rotating mechanism  9  may rotate the second air discharging unit  5  while keeping the rotational center axis Q of the second air discharging unit  5  in position. The second air discharging unit rotating mechanism  9  may rotate the second air discharging unit  5  among the plurality of second air discharging units  4  and  5  so that the air discharging flow path  54  of the second air discharging unit  5  is opened to the outside, as shown in  FIGS. 7 to 9 . The second air discharging unit rotating mechanism  9  may rotate the second air discharging unit  5  so that at least a portion of the second air discharging unit  5  faces the center body  150  when the air conditioner stops its operation as shown in  FIG. 10 . 
         [0139]    The air discharging unit rotating mechanism  6  may include a first gear  82  disposed at one of the plurality of air discharging units  4  and  5  and a first gear rotating mechanism  84  for rotating the first gear  82 . The first gear  82  and the first gear rotating mechanism  84  may form the first air discharging unit rotating mechanism  8 . The first gear rotating mechanism  84  may include a first driving gear  85  engaged with the first gear  82  and a first motor  86  for rotating the first driving gear  85 . 
         [0140]    The first gear  82  may be a first slave gear that is rotated by the first driving gear  85 . The first gear  82  may have a ring-shaped body. The ring-shaped body may have, on its outer periphery, gear teeth engaged with the first driving gear  85 . The ring-shaped body may be coupled with at least one of the first lower ring  48  and the first air discharging body  46  of the first air discharging unit  4  by way of a screw or other connecting member. The ring-shaped body may have a connecting member through hole through which a screw or other connecting member passes. 
         [0141]    The first driving gear  85  may be formed to be smaller in size than the first gear  82 . The first driving gear  85  may be positioned adjacent to the first gear  82 , and the first driving gear  85  may rotate the first gear  82  at a position adjacent to the first gear  82 . 
         [0142]    The first motor  86  may be provided to rotate the first air discharging unit  4  and may be installed at the lower cover  110 . 
         [0143]    The air discharging unit rotating mechanism  6  may include a second gear  92  disposed at the other of the plurality of air discharging units  4  and  5  and a second gear rotating mechanism  94  for rotating the second gear  92 . The second gear  92  and the second gear rotating mechanism  94  may form the second air discharging unit rotating mechanism  9 . The second gear rotating mechanism  94  may include a second driving gear  95  engaged with the second gear  92  and a second motor  96  for rotating the second driving gear  95 . 
         [0144]    The second gear  92  may be a second slave gear that is rotated by the second driving gear  95 . The second gear  92  may have a ring-shaped body. The ring-shaped body may have, on its outer periphery, gear teeth engaged with the second driving gear  95 . The ring-shaped body may be coupled with at least one of the second lower ring  58  and the second air discharging body  56  of the second air discharging unit  5  by way of a screw or other connecting member. The ring-shaped body may have a connecting member through hole through which a screw or other connecting member passes. 
         [0145]    The second driving gear  95  may be formed to be smaller in size than the second gear  92 . The second driving gear  95  may be positioned adjacent to the second gear  92 , and the second driving gear  95  may rotate the second gear  92  at a position adjacent to the second gear  92 . 
         [0146]    The second motor  96  may be provided to rotate the second air discharging unit  5  and may be installed at the lower cover  110 . 
         [0147]    The lower body  100  may be installed to be positioned at a lower side of the plurality of air discharging units  4  and  5 . The lower body  100  may be formed of a single member or an assembly of a plurality of members. 
         [0148]    The lower body  100  may include a ring-shaped first air discharging unit supporting part  101  having a first circular through hole, a ring-shaped second air discharging unit supporting part  102  having a second circular through hole, and a lower plate part  103  connecting the first air discharging unit supporting part  101  with the second air discharging unit supporting part  102 . The lower plate part  103  may be integrally formed with the first air discharging unit supporting part  101  and the second air discharging unit supporting part  102 . The lower plate part  103  may be positioned at a space between the first air discharging unit supporting part  101  and the second air discharging unit supporting part  102 , at a rear side of the first air discharging unit supporting part  101 , and at a rear side of the second air discharging unit supporting part  102 . 
         [0149]    The lower body  100 , if constituted of an assembly of a plurality of members, may include a first fixing ring  104  disposed in the first air discharging unit supporting part  101  to rub against the first lower ring  48  and a second fixing ring  105  disposed in the second air discharging unit supporting part  102  to rub against the second lower ring  58 . 
         [0150]    The first fixing ring  104  may be formed of metal like the first lower ring  48 . The first lower ring  48  may be seated in the first fixing ring  104 . 
         [0151]    The second fixing ring  105  may be formed of metal like the second lower ring  58 . The second lower ring  58  may be seated in the second fixing ring  105 . 
         [0152]    The first fixing ring  104  and the second fixing ring  105 , together with the first air discharging unit supporting part  101 , the second air discharging unit supporting part  102 , and the lower plate part  103 , may form the lower body  100 . 
         [0153]    The lower cover  110  may have a first gear rotating mechanism mounting part  112  where the first gear rotating mechanism  84  is mounted and a second gear rotating mechanism mounting part  114  where the second gear rotating mechanism  94  is mounted. The lower cover  110  may include a plurality of couplers  116  and  118  coupled with the blower  2 . 
         [0154]    The first gear rotating mechanism mounting part  112  may be a first motor accommodating part where the first motor  86  is inserted and accommodated, and the first gear rotating mechanism mounting part  112  may be shaped so that its top surface is opened while its side outer circumferential surface and bottom surface are closed. The first gear rotating mechanism mounting part  112  may be shaped to project downwards from a side of the lower cover  110 . 
         [0155]    The second gear rotating mechanism mounting part  114  may be a second motor accommodating part where the second motor  96  is inserted and accommodated, and the second gear rotating mechanism mounting part  114  may be shaped so that its top surface is opened while its side outer circumferential surface and bottom surface are closed. The second gear rotating mechanism mounting part  114  may be shaped to project downwards from the other side of the lower cover  110 . The second gear rotating mechanism mounting part  114  may be spaced apart from the first gear rotating mechanism mounting part  112 . 
         [0156]    The lower cover  110  may be seated in the blower  2  as shown in  FIG. 1 , and the load from the plurality of air discharging units  4  and  5  and the air discharging unit rotating mechanism  6  may be exerted to the blower  2 . 
         [0157]    The lower cover  110  may be coupled with at least one of the first air discharging part  22  and the second air discharging part  24  of the blower  2  shown in  FIG. 1 . The plurality of couplers  116  and  118  may include a first coupler  116  coupled to an upper portion of the first air discharging part  22  of the blower  2  shown in  FIG. 1 , by way of a screw or other connecting member and a second coupler  118  coupled to an upper portion of the second air discharging part  24  of the blower  2  by way of a screw or other connecting member. The lower cover  110  may be coupled with the blower  2  at multiple points. In other words, the air discharging unit holder  7  may be coupled with the blower  2  through the lower cover  110 . 
         [0158]    The rear body  120  may be integrally formed with the lower plate part  103  of the lower body  100  to project therefrom. The rear body  120  may be stereoscopically formed to protect the plurality of air discharging units  4  and  5 . The side circumferential portion of each air discharging unit  4  and  5  may be partially surrounded by the rear body  120 , and the rear body  120  may protect the plurality of air discharging units  4  and  5  by partially surrounding the side circumferential portion of each air discharging unit  4  and  5 . 
         [0159]    The rear body  120  may include a first accommodating part  122  that is recessed from a surface  121  facing the first air discharging unit  4  among the plurality of air discharging units  4  and  5  to accommodate the first air discharging unit  4  and a second accommodating part  124  that is recessed from a surface  123  facing the second air discharging unit  5  among the plurality of air discharging units  4  and  5  to accommodate the second air discharging unit  5 . 
         [0160]    The first accommodating part  122  may have the recessed surface  121  facing the first air discharging unit  4  among the plurality of air discharging units  4  and  5  to rotatably accommodate the first air discharging unit  4 . 
         [0161]    The first accommodating part  122  may have a rounded shape to partially surround the outer periphery of the first air discharging unit  4 , and the first accommodating part  122  may be larger in size than the first air discharging unit  4 . The first accommodating part  122  may have an arc-shaped cross section and may partially surround the first air discharging unit  4 . A portion of the first air discharging unit  4  may be inserted and accommodated into the recessed portion of the first accommodating part  122 , and a portion of the side circumferential portion of the first air discharging unit  4  may be surrounded by the first accommodating part  122 . The first accommodating part  122  may protect a portion of the side circumferential portion of the first air discharging unit  4  that faces the first accommodating part  122 . 
         [0162]    The second accommodating part  124  may have the recessed surface  123  facing the second air discharging unit  5  among the plurality of air discharging units  4  and  5  to rotatably accommodate the second air discharging unit  5 . 
         [0163]    The second accommodating part  124  may be formed symmetrical with the first accommodating part  122 . The second accommodating part  124  may have a rounded shape to partially surround the outer periphery of the second air discharging unit  5 , and the second accommodating part  124  may be larger in size than the second air discharging unit  5 . The second accommodating part  124  may have an arc-shaped cross section and may partially surround the second air discharging unit  5 . A portion of the second air discharging unit  5  may be inserted and accommodated into the recessed portion of the second accommodating part  124 , and a portion of the side circumferential portion of the second air discharging unit  5  may be surrounded by the second accommodating part  124 . The second accommodating part  124  may protect a portion of the side circumferential portion of the second air discharging unit  5  that faces the second accommodating part  124 . 
         [0164]    The rear body  120  may include a left plate  122 B and a right plate  124 B. The left plate  122 B may be projected backward from a left side end  122 A of the first accommodating part  122 . The right plate  124 B may be projected backward from a right side end  124 A of the second accommodating part  124 . 
         [0165]    The left-right width L 1  of a first air outlet  43  may be smaller than the width L 2  between the left side end  122 A of the first accommodating part  122  and the center body  150 . As positioned closer to the left side end  122 A of the first accommodating part  122 , the first air outlet  43  may allow air to be discharged substantially in a left direction, and as positioned closer to the center body  150 , the first air outlet  43  may allow air to be discharged substantially in a front direction. 
         [0166]    The left-right width L 3  of a second air outlet  53  may be smaller than the width L 4  between the right side end  124 A of the second accommodating part  124  and the center body  150 . As positioned closer to the right side end  124 B of the second accommodating part  124 , the second air outlet  53  may allow air to be discharged substantially in a right direction, and as positioned closer to the center body  150 , the second air outlet  53  may allow air to be discharged substantially in a front direction. 
         [0167]    The rear body  120  may have a center body coupler  126  projecting in a front direction, wherein the center body  150  is coupled to the center body coupler  126 . The center body coupler  126  may project between the plurality of air discharging units  4  and  5 . The center body coupler  126  may be formed by a portion of the first accommodating part  122  and a portion of the second accommodating part  124 . The center body coupler  126  may include a first side portion  126 A positioned between the air discharging units  4  and  5  of the first accommodating part  122  and a second side portion  126 B positioned between the air discharging units  4  and  5  of the second accommodating part  124 . The center body coupler  126  may further include a front plate part  126 C connecting an end of the first side portion  126 A with an end of the second side portion  126 B. The center body coupler  126  may be shaped so that its left and right side surfaces are opened and its rear surface opened. 
         [0168]    The center body coupler  126  and the center body  150  may partition, left and right, an upper side of the lower body  100 . When the center body  150  is coupled to the center body coupler  126 , the center body  150  and the center body coupler  126  may partition, left and right, the space between the air discharging units  4  and  5 . 
         [0169]    The rear cover  130  may include side plates  131  and  132  covering the side surfaces of the rear body  120 . The side plate  131  may include a left side cover plate  131  covering the left side plate  122 B of the rear body  120  and a right side cover plate  132  covering the right side plate  124 B of the rear body  120 . The rear cover  130  may include a connecting cover plate  133  connecting the left side cover plate  131  with the right side cover plate  132 . 
         [0170]    The top cover  140  may be partially positioned over the space between the air discharging units  4  and  5 . The top cover  140  may prevent dust or other foreign materials from flowing into the space between the air discharging units  4  and  5 . The top cover  140  may cover the space between the center body  150  and the center body coupler  126 . The space between the center body  150  and the center body coupler  126  may prevent inflow of dust or other foreign materials without viewed from above the air conditioner. The top cover  140  may be coupled with at least one of the center body  150  and the rear body  120  by way of a connecting member such as a screw or a hooking member such as a hook. 
         [0171]    The first axis supporting part  142  and the second axis supporting part  144  of the top cover  140  may be spaced apart from each other in left and right directions. 
         [0172]      FIG. 11  is an expanded cross-sectional view illustrating a center body of an air conditioner according to an embodiment of the present invention. 
         [0173]    The center body  150  may be formed of an assembly of a plurality of members. The center body  150  is not limited in function as shielding the space between the air discharging units  4  and  5 . The center body  150  may function as a control panel for manipulating the air conditioner or as a display displaying information on the air conditioner. The center body  150  may play a role as a display-cum-control panel. Hereinafter, the center body  150  is referred to as a display for ease of description. 
         [0174]    The center body  150  may include a center case  160 , a center cover  170  disposed before the center case  160 , and a PCB assembly  180  installed in the center case  160 . 
         [0175]    A left side surface  161  of the center case  160  may face one 4 of the plurality of air discharging units  4  and  5 , and a right side surface  162  of the center case  160  may face the other 5 of the plurality of air discharging units  4  and  5 . A front surface of the center case  160  may be opened. 
         [0176]    The center case  160  may be coupled to the center body coupler  126 . The left-right width of the center case  160  may increase in the front direction thereof. The center case  160  may include a pair of ribs  163  and  164  for fitting the center body coupler  126  thereinto. The pair of ribs  163  and  164 , each, may project backward from the rear plate part of the center case  160 . The center body coupler  126  may be partially inserted into a space between the pair of ribs  163  and  164  and fitted into the pair of ribs  163  and  164 . 
         [0177]    The center case  160  may include a rear plate part, a left side plate part formed at a left side of the rear plate part, a right side plate part formed at a right side of the rear plate part, a top plate part formed at a top of the rear plate part, and a bottom plate part formed at a bottom of the rear plate part. The left side plate part and the right side plate part may be formed so that the distance therebetween increases in a front direction thereof. 
         [0178]    The center case  160  may be formed of a transparent or translucent material. The center case  160  may further include a light diffusing part that may diffuse light. 
         [0179]    The center cover  170  may be larger in size than the center case  160 . The center cover  170  may cover the opened front surface of the center case  160 . The center cover  170  may include a front body  172  coupled to the center case  160  and a front cover  174  disposed at a front surface of the front cover  172 . 
         [0180]    The front body  172  may have a light transmittance hole through which light from the PCB assembly  180  passes. 
         [0181]    The front cover  174  may function as a display window displaying information regarding the air conditioner, and the center body  150  may function as a display. The front cover  174  may operate as a touch input unit where the user touches to manipulate the air conditioner. The center body  150  may function as a control panel. 
         [0182]    The left-right width L 6  of the center cover  170  may be larger than the left-right width L 5  of an end of the center body coupler  126 . 
         [0183]    The PCB assembly  180  may emit light to the center cover  170 . The PCB assembly  180  may include a PCB  182  coupled to the center case  160  by way of a connecting member such as a screw and at least one LED  184  mounted on the PCB  182 . At least one LED  184  may be mounted on a front surface of the PCB  182  and the LED  184  may radiate light to a rear surface of the PCB cover  170 . The PCB assembly  180  may further include a light guide  186  guiding light from the LED  184  to the PCB cover  170 . The PCB assembly  180  may include a touch switch that switches on/off when contacted by the front cover  174 . The touch switch may be mounted in the PCB  182  so that its end comes in contact with the center cover  170 . 
         [0184]    The center body  150  may further include an illuminating apparatus  187  that is installed inside the center case  160  to radiate light to the center case  160 . The illuminating apparatus  187  may include a second PCB  188  installed in the center case  160  and at least one second LED  189  mounted on the second PCB  188 . 
         [0185]    Meanwhile, the air conditioner may include a controller for controlling the blower  2 , the first air discharging unit rotating mechanism  8 , and the second air discharging unit rotating mechanism  9 . 
         [0186]    The controller may control the first fan motor  26  and the second fan motor  28  when controlling the blower  2 . The controller, when the air conditioner operates, may actuate both the first fan motor  26  and the second fan motor  28 , and when the air conditioner stops operation, may stop both the first fan motor  26  and the second fan motor  28 . The controller, when controlling the blower  2 , may actuate only one of the first fan motor  26  and the second fan motor  28  while stopping the other of the fan motors  26  and  28 . When controlling the blower  2 , the controller may control the first fan motor  26  and the second fan motor  28  so that the first fan motor  26  and the second fan motor  28  have different speeds. 
         [0187]    The controller may control the first air discharging unit rotating mechanism  8  and the second air discharging unit rotating mechanism  9  in an open air outlet mode or in a closed air outlet mode. 
         [0188]    The open air outlet mode may refer to a mode in which the plurality of air discharging units  4  and  5  rotate so that the air outlets of the air discharging units  4  and  5  are oriented to the outside of the air conditioner. 
         [0189]    The open air outlet mode may come in multiple air discharging modes depending on the direction in which air is discharged. 
         [0190]    The plurality of air discharging modes may include a side surface air discharging mode in which the air discharging units  4  and  5  guide air discharge in a lateral direction thereof and a front air discharging mode in which the air discharging units  4  and  5  guide air discharge in a front direction thereof. 
         [0191]    The plurality of air discharging modes may further include an inclined air discharging mode in which the air discharging units  4  and  5  discharge air in an inclined direction between the front and side thereof. The inclined air discharging mode may come in multiple modes that have different rotational angles with respect to the front air discharging mode. For example, the inclined air discharging mode may come in multiple modes including, e.g., a mode in which the air discharging units are rotated a predetermined angle (e.g., 10 degrees or 20 degrees) further than in the front air discharging mode. 
         [0192]    The open air outlet mode may come in swing mode and non-swing mode depending on whether the air discharging units  4  and  5 , each, alternately rotates. The swing mode may be a mode in which the air discharging units  4  and  5  discharge air while rotating in a swing manner, and the non-swing mode may be a mode in which the air discharging units  4  and  5  stop swing rotation while discharging air in a single direction along which their air outlets are oriented. 
         [0193]    Meanwhile, the closed air outlet mode may refer to a mode in which at least part of the air outlets of the air discharging units  4  and  5  may be positioned facing a side surface of the center body  150 , and the air outlets of the air discharging units  4  and  5  are not exposed to the outside but hidden. When the air conditioner stops operation, the first air discharging unit rotating mechanism  8  and the second air discharging unit rotating mechanism  9 , each, may be controlled in the closed air outlet mode. 
         [0194]    The controller, when the air conditioner operates, may actuate the first wind direction adjusting motor installed in the first air discharging unit  4  and the second wind direction adjusting motor installed in the second air discharging unit  5 . 
         [0195]    The controller may control the center body  150 . The controller may control the PCB assembly  180  of the center body  150 . The controller may receive various commands on the air conditioner through the center cover  170  of the center body  150  and may output signals to the PCB assembly  180  to display various pieces of information regarding the air conditioner through the center cover  170 . The controller may control the illuminating apparatus  187  of the center body  150 . 
         [0196]    Now described is an operation of the present invention configured as above. 
         [0197]    First, when the air conditioner operates, the first air discharging unit rotating mechanism  8  may rotate the first air discharging unit  4  to the position where the first air outlet  43  is oriented to the outside, and the second air discharging unit rotating mechanism  9  may rotate the second air discharging unit  5  to the position where the second air outlet  53  is oriented to the outside. 
         [0198]    When the air conditioner operates, the first air discharging unit rotating mechanism  8  may rotate the first air discharging unit  4  so that the first air outlet  43  is exposed to the outside, and the first air discharging unit  4  may be positioned so that the first air outlet  43  faces the front thereof as shown in  FIG. 7 , the left side thereof as shown in  FIG. 8 , and the front and left side thereof as shown in  FIG. 9 . 
         [0199]    When the air conditioner operates, the second air discharging unit rotating mechanism  9  may rotate the second air discharging unit  5  so that the second air outlet  53  is exposed to the outside, and the second air discharging unit  5  may be positioned so that the second air outlet  53  faces the front thereof as shown in  FIG. 7 , the left side thereof as shown in  FIG. 8 , and the front and right side thereof as shown in  FIG. 9 . 
         [0200]    Meanwhile, when the air conditioner stops, the first air discharging unit rotating mechanism  8  may rotate the first air discharging unit  4  to the position where the first air outlet  43  faces the left side surface of the center body  150  as shown in  FIG. 10 , and the second air discharging unit rotating mechanism  9  may rotate the second air discharging unit  5  to the position where the second air outlet  53  faces the right side surface of the center body  150  as shown in  FIG. 10 . In such case, the first air outlet  43  may be closed by the center body  150 , preventing inflow of foreign materials therethrough, and the second air outlet  53  may be closed by the center body  150 , preventing inflow of foreign materials therethrough. 
         [0201]    The present invention is not limited to the above embodiments, and various changes may be made thereto without departing from the technical category to which the present invention belongs.

Technology Classification (CPC): 5