JPWO2019016982A1 - Air conditioner - Google Patents

Abstract

An air conditioner installed on the upper side or ceiling of a side wall of a room, which includes a housing and a blower (33). When the height of the housing is h [mm] and the lateral width of the housing is W [mm], the relationship of W≧4×h is established. The blower (33) includes a first blower section (33A) and a second blower section (33B) arranged side by side in the horizontal direction. The first blower unit (33A) has a drive motor (34A) and a first blower fan unit, and the second blower unit (33B) has a drive motor (34B) and a second blower fan unit. By stably rotating the fan, vibration and noise can be effectively suppressed.

Description

  The present specification relates to an air conditioner installed on a side wall of a room or on a ceiling. This application claims the priority based on Japanese Patent Application No. 2017-140998 filed on July 20, 2017. All contents described in the Japanese patent application are incorporated herein by reference.

  The following Patent Documents 1 to 8 disclose inventions relating to air conditioners (so-called air conditioners). An air conditioner generally generates an air flow by rotating a fan by a drive motor.

  The following Patent Document 9 discloses an invention relating to an attachment angle for attaching a fan to a drive motor. It is described in the document that the vibration of the entire fan unit can be reduced by optimizing the mounting angle.

  The following Patent Document 10 discloses an invention relating to a support structure of a fan shaft (rotating shaft). It is described in the same document that it is possible to prevent the shaft and the bearing from contacting each other and generating abnormal noise by adopting a specific support structure at the end of the shaft.

Japanese Patent No. 3141867 JP, 2005-169389, A JP, 2016-099090, A JP, 2016-183794, A Japanese Patent No. 4932916 JP 2012-063133 A Japanese Patent No. 4604536 JP, 2005-315538, A JP, 2016-114009, A JP, 2013-142502, A

  When the fan provided in the housing of the air conditioner cannot rotate stably, vibration and noise are likely to occur. When considering an air conditioner in which the width of the housing is 4 times or more the height of the housing, it is not easy to stably rotate the fan due to the structure of the air conditioner, and the rotation of the fan Vibration and noise due to

  A high-performance filter may be installed to enhance the air purification capacity of the air conditioner. Since a high-performance filter easily causes pressure loss, it is necessary to rotate the fan at a high rotation speed to obtain the air volume. A fan that rotates at a high rotational speed tends to be a source of vibration and noise. It is not easy to realize low vibration and noise in an air conditioner in which the width of the housing is four times or more the height of the housing, and it is not easy to realize low vibration and low noise in such an air conditioner. Achieving high air purification capacity has also been difficult until now.

  An object of the present specification is to disclose an air conditioner having a configuration capable of effectively suppressing generation of vibration and noise by realizing stable rotation of a fan.

  An air conditioner according to the present invention is an air conditioner installed on an upper part of a side wall of a room or on a ceiling, and has an upper surface arranged to face the ceiling, a lower surface located on the floor side, and A housing having a back surface arranged on the side wall side and a front surface located on the opposite side of the back surface, forming a suction port, and having an air outlet formed on the front surface side, and the inside of the housing And a heat exchanger arranged in front of or above the blower, wherein the height of the housing is h [mm] and the width of the housing is W [mm], The relationship of W≧4×h is established, and the blower includes a first blower unit having a first drive motor and a first blower fan unit connected to the first drive motor, and a second drive motor. And a second blower unit having a second blower fan unit connected to the second drive motor, wherein the first blower unit and the second blower unit are arranged side by side in the horizontal direction. By driving at least one of the first blower unit and the second blower unit, air is taken into the housing from the suction port, and the air passes through the heat exchanger. And becomes conditioned air and is blown out through the outlet.

  In the air conditioner, preferably, a control unit is arranged at a position closer to the center in the horizontal direction of the housing, and the control unit controls the operations of the first blower unit and the second blower unit. Control device is stored inside, the first blower unit and the second blower unit are provided at positions opposite to each other across the control unit in the horizontal direction, and the first drive motor is horizontal. The first drive fan unit may be disposed in the direction between the first blower fan unit and the control unit, and the second drive motor may be disposed between the second blower fan unit and the control unit in the horizontal direction.

  The air conditioner preferably further includes an air cleaning filter, and the air cleaning filter may be a HEPA filter and may be arranged so as to close the suction port from the inside of the housing.

  In the air conditioner, preferably, the first blower fan unit and/or the second blower fan unit are arranged in a plurality in a horizontal direction so as to be coaxial with each other via a rotation shaft. May be included.

  According to the above air conditioner, the stable rotation of the fan is realized, so that the generation of vibration and noise can be effectively suppressed.

FIG. 3 is a perspective view showing a state where the air conditioner 100 according to the embodiment is installed in the room 10. It is a perspective view showing air conditioner 100 in an embodiment. FIG. 3 is a sectional view taken along the line III-III in FIG. FIG. 4 is a sectional view taken along line IV-IV in FIG. It is a perspective view which shows the air blower 33 with which the air conditioner 100 in embodiment is equipped. FIG. 3 is a perspective view showing one of a plurality of multi-blade centrifugal fans 35 included in the blower 33 included in the air conditioner 100 according to the embodiment. It is a top view which shows typically the air blower 33 and the heat exchanger 38 with which the air conditioner 100 in embodiment is equipped. FIG. 3 is a perspective view showing a state when the air conditioner 100 according to the embodiment is in a state of a cooling operation or a blowing operation. FIG. 3 is a side view showing a state when the air conditioner 100 according to the embodiment is in a state of a cooling operation or a blowing operation. FIG. 4 is a cross-sectional view corresponding to FIG. 3 and showing a state when the air conditioner 100 according to the embodiment is in a state of a cooling operation or a blowing operation. FIG. 3 is a perspective view showing a state when a cooling operation or a blowing operation is performed in the room 10 by the air conditioner 100 according to the embodiment. FIG. 3 is a perspective view showing a state when the air conditioner 100 in the embodiment is in a heating operation state. FIG. 3 is a side view showing a state when the air conditioner 100 in the embodiment is in a heating operation state. FIG. 4 is a cross-sectional view corresponding to FIG. 3 and showing a state when the air conditioner 100 in the embodiment is in the heating operation state. FIG. 3 is a perspective view showing a state in which heating operation is performed in room 10 by air conditioner 100 according to the embodiment. It is a perspective view which shows a part of blower with which the air conditioner in Embodiment 6 is equipped. It is a top view which shows the air blower with which the air conditioner in Embodiment 7 is equipped. It is a front view which shows some blowers with which the air conditioner in Embodiment 7 is equipped (drive motor 34A, multiblade centrifugal fan 35, and casing 36 (36a, 36b)). FIG. 16 is a perspective view showing a front view and a top view of a part of a blower (a drive motor 34A, a multi-blade centrifugal fan 35, and a casing 36) included in an air conditioner according to a seventh embodiment. FIG. 16 is a first perspective view showing a state of a back surface and an upper surface side of a part of the blower included in the air conditioner according to the seventh embodiment (the drive motor 34A, the multiblade centrifugal fan 35, and the casing 36). FIG. 16 is a second perspective view showing a state of a back surface and an upper surface side of a part of the blower included in the air conditioner according to the seventh embodiment (the drive motor 34A, the multi-blade centrifugal fan 35, and the casing 36). It is a top view which shows typically the air blower and heat exchanger 38 with which the air conditioner in Embodiment 7 is equipped. It is a perspective view which shows the air conditioner 101 in Embodiment 8. FIG. 24 is a cross-sectional view taken along the line XXIV-XXIV in FIG. It is a top view which shows typically the air blower 33, the heat exchanger 38, and the control part 39 with which the air conditioner 101 in Embodiment 8 is equipped. FIG. 28 is a plan view for explaining another configuration 2 related to the eighth embodiment. FIG. 19 is a perspective view 1 for explaining another configuration 3 according to the eighth embodiment. FIG. 16 is a perspective view 2 for explaining another configuration 3 according to the eighth embodiment. FIG. 21 is a perspective view 1 for explaining another configuration 4 according to the eighth embodiment. FIG. 16 is a perspective view 2 for explaining another configuration 4 according to the eighth embodiment. FIG. 28 is a plan view for explaining another configuration 5 according to the eighth embodiment. FIG. 28 is a plan view for explaining another configuration 6 according to the eighth embodiment.

  Embodiments will be described below with reference to the drawings. The same parts and corresponding parts are designated by the same reference numerals, and duplicate description may not be repeated.

[Embodiment 1]
The configuration of the air conditioner 100 according to the embodiment will be described with reference to FIGS. 1 to 7. The operation of the air conditioner 100 will be described later with reference to FIGS. FIG. 1 is a perspective view showing how the air conditioner 100 is installed in a room 10. FIG. 2 is a perspective view showing the air conditioner 100. 3 is a sectional view taken along the line III-III in FIG. 2, and FIG. 4 is a sectional view taken along the line IV-IV in FIG.

  As shown in FIGS. 1 and 2, the air conditioner 100 is used as a so-called air conditioner. In the air conditioner 100 of the present embodiment, the back surface 23 (FIGS. 3 and 4) of the housing 20 is fixed to the side wall 12 by using a metal fitting or the like not shown. The air conditioner 100 may be installed on the ceiling 11 by fixing the upper surface 21 of the housing 20 to the ceiling 11 of the room 10 using a metal fitting or the like, without being limited to such a fixing structure.

  As shown in FIGS. 3 and 4, the air conditioner 100 includes a housing 20, an air filter 31, an air cleaning filter 32, a blower 33, a heat exchanger 38, and an airflow direction adjusting unit 40.

(Housing 20)
The housing 20 includes an upper surface 21 arranged to face the ceiling 11 of the room 10, a lower surface 22 located on the floor surface (see the floor surface 13 in FIG. 11) side wall 12 (FIGS. 1 and 11). The rear surface 23 disposed on the side, the front surface 24 located on the opposite side of the rear surface 23 (that is, the front surface side of the housing 20), the side wall 25 disposed on one end side in the longitudinal direction of the housing 20, and the longitudinal direction of the housing 20. A side wall 26 disposed on the other end side in the direction.

  The upper surface 21 of the housing 20 has a substantially plate shape, and the upper surface 21 side of the housing 20 is closed. The lower surface 22 of the housing 20 is located on the opposite side of the upper surface 21, and the lower surface 22 has a suction port 22H (FIGS. 3 and 4). The suction port 22H extends in a substantially horizontal direction along the longitudinal direction of the housing 20.

  The rear surface 23 is provided so as to connect between the rear end portion of the upper surface 21 and the rear end portion of the lower surface 22, and when the air conditioner 100 is installed on the side wall 12, the rear surface 23 is perpendicular to the vertical direction. It becomes almost parallel. The front surface 24 is provided so as to stand in a substantially L shape from the front end portion of the lower surface 22. A space for arranging the shaft support portions 41T, 42T, 43T, the heat exchanger 38, and the like is formed between the front end portion 24T of the front surface 24 (FIGS. 3 and 4) and the front end portion 21F of the upper surface 21. .

  Although the details will be described later, each of the shaft support portions 41T, 42T, 43T has a shape extending in a rod shape. Each of the shaft support parts 41T, 42T, 43T extends in a direction perpendicular to the paper surface of FIGS. 3 and 4, and both ends of the shaft support part 41T, both ends of the shaft support part 42T, and both ends of the shaft support part 43T. The parts are fixed by side walls 25 and 26, respectively.

  By disposing the shaft support portions 41T, 42T, 43T as described above between the front end portion 24T of the front surface 24 and the front end portion 21F of the upper surface 21, the front end portion 24T of the front surface 24 and the front end portion 21F of the upper surface 21 are A space between them is defined, and a front upper opening 28 and a front lower opening 29 are formed in the space (opening 27) on the front surface side of the housing 20.

(Air filter 31 and air purifying filter 32)
As shown in FIGS. 3 and 4, the air filter 31 and the air cleaning filter 32 are provided inside the housing 20. The air filter 31 is arranged above the suction port 22H so as to close the suction port 22H from the inside of the housing 20. The air cleaning filter 32 is arranged above the air filter 31. The air purification filter 32 is composed of, for example, a HEPA filter.

(Blower 33 and heat exchanger 38)
As shown in FIGS. 3 and 4, the blower 33 is arranged above the air cleaning filter 32, and the heat exchanger 38 is arranged in front of the blower 33. The configuration is not limited to such a configuration, and the heat exchanger 38 may be disposed in front of and above the blower 33. FIG. 5 is a perspective view showing the blower 33. As shown in FIGS. 3 to 5, the blower 33 includes a drive motor 34, a plurality of multi-blade centrifugal fans 35 (35 a to 35 d ), and a rotating shaft 37.

  The plurality of multi-blade centrifugal fans 35 (35a to 35d) are connected to the drive motor 34 via a rotation shaft 37, and are arranged side by side in the horizontal direction so as to be coaxial with the drive motor 34. In the present embodiment, the plurality of multi-blade centrifugal fans 35 (35a to 35d) are provided on each of the one side and the other side of the drive motor 34 in the axial direction. The multi-blade centrifugal fan 35 (35a, 35b) and the multi-blade centrifugal fan 35 (35c, 35d) are arranged at positions symmetrical with respect to the position of the drive motor 34. In other words, the drive motor 34 is arranged at a position near the center of the housing 20 in the horizontal direction (longitudinal direction of the housing 20), and the plurality of multi-blade centrifugal fans 35 (35a to 35d) are arranged in the horizontal direction more than the drive motor 34. Is also located outside.

  FIG. 6 is a perspective view showing one of the plurality of multi-blade centrifugal fans 35 provided in the blower 33. The multi-blade centrifugal fan 35 has frame members 35P and 35Q formed in an annular shape, a boss 35R provided upright in the center of the frame member 35Q, and a plurality of blade parts 35F. The frame bodies 35P and 35Q are arranged at positions separated from each other in the axial direction. Both ends of each of the plurality of blade portions 35F are supported by the frame bodies 35P and 35Q. The multi-blade centrifugal fan 35 is connected to the rotating shaft 37 (FIG. 5) via the boss 35R. The multi-blade centrifugal fan 35 sends out the air taken in from the inner peripheral side to the outer peripheral side by a plurality of rotating blade portions 35F. The multi-blade centrifugal fan 35 uses centrifugal force to send air outward from the rotation center side of the fan in the radial direction.

  FIG. 7 is a plan view schematically showing the blower 33 and the heat exchanger 38. As shown in FIGS. 3 to 5 and 7, the blower 33 of the present embodiment further includes a plurality of casings 36 (36a to 36d). Each of the plurality of casings 36 (36a to 36d) has a spiral-shaped flow passage 36S (FIGS. 3 and 4) formed inside, and surrounds each of the plurality of multi-blade centrifugal fans 35 (35a to 35d). It is arranged so as to cover.

  Each of the plurality of casings 36 (36a to 36d) has a side wall 36W, a through hole 36J, and an opening 36H. The side wall 36W and the through hole 36J are located on the opposite sides of the multi-blade centrifugal fan 35 with the multi-blade centrifugal fan 35 interposed therebetween in the direction of the rotation axis (rotational shaft 37) of the multi-blade centrifugal fan 35. The opening 36H is formed on the front side of the casing 36, and the casing 36 is arranged so that the opening 36H opens toward the heat exchanger 38 side.

  As shown in FIG. 7, since each of the plurality of multi-blade centrifugal fans 35 (35a to 35d) is surrounded by each of the plurality of casings 36 (36a to 36d) as described above, two adjacent multi-fans are provided. A side wall 36W of the casing 36 is located between the blade centrifugal fans 35. The rotation of the multi-blade centrifugal fan 35 takes in air from the through holes 36J, the centrifugal force of the multi-blade centrifugal fan 35 blows the air toward the front of the casing 36, and blows it onto the heat exchanger 38 through the opening 36H. Be done. The air heated or cooled by the heat exchanger 38 passes through a blow-out port (a front upper blow-out portion 28H shown in FIGS. 8 and 9 and a front lower blow-out portion 29H shown in FIGS. 12 and 13) to be described later. Will be blown out to.

  3 and 4, the heat exchanger 38 includes an upper heat exchange section 38A and a lower heat exchange section 38B. Each of the upper heat exchange section 38A and the lower heat exchange section 38B has a plurality of refrigerant tubes (tubular materials) and a plurality of fins (plate materials) that support them. The upper heat exchange section 38A is generally arranged so as to incline so as to extend from the rear side to the front side from the upper side to the lower side, and the lower heat exchange section 38B as a whole is rearward from the lower side to the upper side. Is arranged so as to extend from the front toward the front.

  The heat exchanger 38 has a substantially V-shaped shape as a whole, and is fixed by the housing 20 or the like so that the bent portion is located on the most front side of the heat exchanger 38. The heat exchanger 38 is arranged so as to face the blower 33 from the front side, and can heat or cool the air from the blower 33.

(Opening 27 and wind direction adjusting unit 40)
With reference to FIG. 3, as described above, the opening 27 (space) is formed between the front end portion 24T of the front surface 24 of the housing 20 and the front end portion 21F of the upper surface 21 of the housing 20. The shaft support portion 42T is arranged in a position near the lower end of the front end portion 21F of the upper surface 21, and the shaft support portion 43T is arranged in a position immediately in front of the front end portion 24T of the front surface 24 (in the vicinity of the lower portion). The shaft support 41T is arranged at a position just between the shaft support 41T and the shaft support 43T.

  Since the shaft support portions 41T, 42T, 43T are arranged in the opening 27 (space), a front upper opening 28 and a front lower opening 29 are formed on the front surface side of the housing 20. The front upper opening 28 is formed between the shaft supporting portion 41T and the shaft supporting portion 42T, and the front lower opening 29 is formed between the shaft supporting portion 41T and the shaft supporting portion 43T.

  The wind direction adjusting unit 40 is arranged so as to cover the opening 27 (here, the front upper opening 28 and the front lower opening 29) formed on the front surface side of the housing 20 from the front side. The wind direction adjusting unit 40 of the present embodiment includes a movable panel 41, an upper wind direction plate 42 and a lower wind direction plate 43. Each of the movable panel 41, the upper wind direction plate 42, and the lower wind direction plate 43 has a plate shape, and extends by a length substantially equal to the length (width) in the longitudinal direction (horizontal direction) of the housing 20. (Figs. 1 and 2).

  The movable panel 41 has an upper end 41</b>A and a lower end 41</b>B, and a portion of the movable panel 41 between the upper end 41</b>A and the lower end 41</b>B is recessed toward the inner side of the housing 20 (the rear surface 23 side). In addition, it is formed in a curved concave shape. The height of the movable panel 41 (the distance between the upper end 41A and the lower end 41B) is set to be slightly larger than the height h of the housing 20. A support portion 41U having a plate shape is formed at a position between the upper end 41A and the lower end 41B of the movable panel 41 so as to project toward the rear surface (rear surface 23).

  FIG. 3 shows the cross-sectional shape of the movable panel 41 at a substantially central position in the longitudinal direction (horizontal direction), and FIG. 4 shows the cross-sectional shape of the movable panel 41 at a position near the end portion in the longitudinal direction. .. The support portion 41U is provided at least at a substantially central position in the longitudinal direction of the movable panel 41 (see FIG. 3), and is connected to the shaft support portion 41T. The movable panel 41 is pivotally supported by the pivotal support portion 41T at a substantially central position in the vertical direction (height direction) of the housing 20.

  The movable panel 41 is not limited to such a position, and a plurality of support portions 41U may be provided so as to be arranged at intervals in the longitudinal direction of the movable panel 41. The movable panel 41 is pivotally supported by one or a plurality of shaft support portions 41T so as to be swingable in directions indicated by arrows AR1 and AR2.

  The upper wind direction plate 42 is formed in a plate shape having a height dimension shorter than the height dimension of the movable panel 41. The upper wind direction plate 42 is connected to the shaft support portion 42T, and is swingably supported via the shaft support portion 42T. The lower wind direction plate 43 is also formed in a plate shape having a height dimension shorter than the height dimension of the movable panel 41. The lower wind direction plate 43 is connected to the shaft support portion 43T, and is swingably supported via the shaft support portion 43T.

(State of standstill)
2 to 4 show a state in which the air conditioner 100 is in the operation stop state. When the air conditioner 100 transitions from the operating state to the operating stop state (that is, when the operating state is stopped), the movable panel 41 and the upper wind direction plate 42 rotate, respectively, so that the rear surface of the movable panel 41 and the upper wind direction are changed. The tip 42A of the plate 42 is close to each other. Each of the movable panel 41 and the upper wind direction plate 42 is arranged at a position to close the front upper opening 28 by rotating in this way. Similarly, as the movable panel 41 and the lower wind direction plate 43 rotate, the back surface of the movable panel 41 and the tip 43A of the lower wind direction plate 43 come close to each other. Each of the movable panel 41 and the lower wind direction plate 43 is arranged at a position that closes the front lower opening 29 by rotating in this way.

(During cooling operation or blowing operation)
FIG. 8 and FIG. 9 are a perspective view and a side view, respectively, showing a state when the air conditioner 100 is in a cooling operation mode or a blowing operation mode. FIG. 10 corresponds to FIG. 3 and is a cross-sectional view showing a state when the air conditioner 100 is in the state of the cooling operation or the blowing operation.

  As shown in FIGS. 8 to 10, when the air conditioner 100 transits to the cooling operation or the blowing operation (that is, during the cooling operation or the blowing operation), the movable panel 41 and the lower wind direction plate 43 are on the lower side. Turn to. The rear surface of the movable panel 41 is in close proximity to the lower front end 25B (FIG. 9) of the side wall 25, the lower front end (not shown) of the side wall 26 having a similar configuration, and the lower wind direction plate 43. The front lower opening 29 (FIG. 10) is closed.

  On the other hand, when the movable panel 41 rotates downward and the upper wind direction plate 42 rotates upward, the front upper opening 28 of the openings 27 is opened. A front upper blowing portion 28H is formed between the upper end 41A of the movable panel 41 and the front end 42A of the upper wind direction plate 42 (upper front of the housing 20). Although details will be described later, in this state, a front lower blow-out portion 29H (FIGS. 13 and 14) described later is closed. In this state, the drive motor 34 (FIG. 5) rotates the plurality of multi-blade centrifugal fans 35.

  Air is taken into the housing 20 through the suction port 22H, the air filter 31, and the air cleaning filter 32. The air passes through the heat exchanger 38 and the opening (the front-side upper opening 28 ), and the wind direction is adjusted by the wind direction adjusting unit 40 (here, the movable panel 41 and the upper wind direction plate 42 ). It is blown out of the machine through the front upper blowing portion 28H formed on the side (arrow DR10 shown in FIG. 9).

  As shown in FIG. 11, the air blown out from the front upper blowing portion 28H advances along the ceiling 11 and then moves down along the side walls 14 to 16 facing the air conditioner 100. The air further travels back along the floor surface 13 toward the air conditioner 100. The air rises along the side wall 12 toward the suction port 22H provided on the lower surface 22 of the air conditioner 100. During the cooling operation, the entire room 10 is cooled by such an air flow. In the air conditioner 100, such a circulating airflow can be formed in the room 10, and an efficient cooling effect and a ventilation effect can be obtained.

(During heating operation)
12 and 13 are a perspective view and a side view, respectively, showing a state when the air conditioner 100 is in the heating operation state. FIG. 14 corresponds to FIG. 3 and is a cross-sectional view showing a state when the air conditioner 100 is in the heating operation state.

  As shown in FIGS. 12 to 14, when the air conditioner 100 transitions to the heating operation state (that is, during the heating operation), the movable panel 41 and the upper wind direction plate 42 rotate upward. The rear surface of the movable panel 41 is close to the front end 25A (FIG. 13) on the upper side of the side wall 25, the front end (not shown) on the upper side of the side wall 26 having a similar configuration, and the upper wind direction plate 42. The front upper opening 28 (FIG. 14) is closed.

  On the other hand, when the movable panel 41 rotates upward and the lower wind direction plate 43 rotates downward, the front lower opening 29 of the openings 27 is opened. A front lower blow-out portion 29H is formed between the lower end 41B of the movable panel 41 and the tip end 43A of the lower wind direction plate 43 (lower front of the housing 20). In this state, the above-described front upper blow-out portion 28H (FIGS. 9 and 10) is closed. In this state, the drive motor 34 (FIG. 5) rotates the plurality of multi-blade centrifugal fans 35.

  Air is taken into the housing 20 through the suction port 22H, the air filter 31, and the air cleaning filter 32. The air passes through the heat exchanger 38 and the opening (the front lower opening 29), and the wind direction is adjusted by the wind direction adjusting unit 40 (here, the movable panel 41 and the lower wind direction plate 43). It is blown out of the machine through the front lower blowing portion 29H formed on the side (arrow DR20 shown in FIG. 13).

  As shown in FIG. 15, the air blown out from the lower front blowing portion 29H moves downward along the side wall 12 and then advances along the floor surface 13. The air further travels up the sidewalls 14-16. Due to such a flow of air, the entire room 10 is warmed. In the air conditioner 100, such an airflow can be formed in the room 10, and an efficient heating effect can be obtained.

(Action and effect)
According to the air conditioner 100, the suction port 22H is formed on the lower surface 22 of the housing 20, and the air taken in from the suction port 22H passes through the air filter 31 and the air cleaning filter 32. Therefore, air conditioning can be performed with less energy consumption while always performing air cleaning. Further, the blower 33 realizes blowing by the plurality of multi-blade centrifugal fans 35 arranged side by side in the horizontal direction. Therefore, by making the depth dimension smaller, it is possible to achieve size reduction as compared with the related art, the feeling of pressure is reduced, and restrictions on indoor environment and aesthetic improvement can be alleviated.

  Further, in the air conditioner 100 of the present embodiment, the movable panel 41 is pivotally supported by the pivotal support portion 41T at a substantially central position in the horizontal and (vertical) height direction of the housing 20. According to this structure, the movable panel 41 can form the upper and lower open type air outlets on the front surface side (upper front and lower front) of the housing 20, for example, without switching the upper and lower shafts or the lock mechanism. Even if a complicated structure such as the above is not used, it is possible to realize the opening and closing of the upper and lower open type air outlets with a simple structure.

[Embodiment 2]
With reference to FIG. 3, assuming that the diameter of the multi-blade centrifugal fan 35 is D [mm] and the height of the housing 20 is h [mm], 0.9×h≦2×D as a preferred embodiment. It is preferable that the relationship of ≦1.1×h is established. As a further preferred embodiment, when the depth of the housing 20 is L [mm], it is preferable that the relationship of 0.9×L≦h+1/2×D≦1.1×L is established.

  According to these configurations, it is possible to realize the air blowing that can overcome the pressure loss generated in the air cleaning filter 32 while suppressing the increase in the depth dimension of the housing 20, thereby improving the energy saving and the compression. The feeling is reduced, and restrictions on indoor environment and aesthetics can be further reduced.

[Third Embodiment]
As shown in FIG. 4, the shortest distance from the back surface of the movable panel 41 to the upper end portion of the front upper opening 28 (here, the position of the shaft support portion 42T) is a when the operation is stopped. In addition, the shortest distance from the back surface of the movable panel 41 to the lower end of the front lower opening 29 (here, the position of the shaft support 43T) when the operation is stopped is b.

  As shown in FIG. 10, the shortest distance from the back surface of the movable panel 41 to the upper end of the front upper opening 28 (here, the position of the shaft support 42T) is L1 during the cooling operation. As shown in FIG. 14, the shortest distance from the back surface of the movable panel 41 to the lower end of the front lower opening 29 (here, the position of the shaft support 43T) during the heating operation is L2.

When the respective values are defined as described above, it is preferable that the relationships of the following expressions (1) and (2) hold.
0.9×(a+b)≦L1≦1.1×(a+b) (1)
0.9×(a+b)≦L2≦1.1×(a+b) (2)
If the above configuration is adopted, the upper and lower open type air outlets can be formed on the front surface side (upper front and lower front) of the housing 20 with a simpler configuration, and the air conditioner 100 can function as an air conditioner. When it is used, the airflow control can be made more optimal, and it is possible to realize the opening and closing of the upper and lower open type air outlets with a simpler structure.

[Embodiment 4]
Referring to FIG. 10, as a preferred embodiment, the upper wind direction plate 42 is pivotally supported at the position of the upper end of the front upper opening 28, and during the cooling operation, the upper wind direction plate 42 is pivotally supported. The front upper opening 28 is opened by rotating upward about the portion (the shaft support portion 42T), and the straight line connecting the shaft support portion 42T and the tip 42A of the upper wind direction plate 42 is forward with respect to the horizontal direction AP. It may be arranged such that the angle θ1 is 20° or less below. According to this configuration, a more suitable airflow can be sent out from the front upper blowing portion 28H during cooling. For example, the occurrence of dew condensation on the ceiling can be further suppressed.

[Fifth Embodiment]
With reference to FIG. 14, as a preferred embodiment, the lower wind direction plate 43 is pivotally supported at the position of the lower end portion of the front lower opening 29, and during the heating operation, the lower wind direction plate 43 is pivotally supported. The front lower opening 29 is opened by rotating downward about the portion (the shaft support portion 43T), and the straight line connecting the shaft support portion 43T and the tip 43A of the lower wind direction plate 43 is forward with respect to the vertical direction BP. It may be arranged such that the angle θ2 is 45° or less. According to this configuration, a more suitable airflow can be sent from the front lower blowing portion 29H during heating. For example, it is possible to prevent warm air from reaching the floor surface due to buoyancy, and it is possible to obtain an efficient heating effect.

  Further, the lower wind direction plate 43 is preferably configured such that the short circuit phenomenon in which the air blown through the front lower opening 29 is immediately sucked into the suction port 22H during the heating operation is suppressed by the lower wind direction plate 43. .. A more suitable airflow can be sent during heating, and the temperature of the housing 20 can be prevented from rising unnecessarily, and energy saving can be further improved.

[Sixth Embodiment]
FIG. 16 corresponds to FIG. 5 in the above-described embodiment and is a perspective view showing a blower included in the air conditioner in the sixth embodiment. In the above-described embodiment (FIG. 5), the four multi-blade centrifugal fans 35 (35a to 35d) are driven by one drive motor 34.

  On the other hand, in the present embodiment (FIG. 16), two multi-blade centrifugal fans 35 (35a, 35b) are connected to one drive motor 34A via a rotary shaft 37A and are coaxial with the drive motor 34A. Are arranged side by side in the horizontal direction. The two multi-blade centrifugal fans 35 (35a, 35b) are driven by one drive motor 34A.

  Similarly, two multi-blade centrifugal fans 35 (35c, 35d) are connected to one drive motor 34B via a rotary shaft 37B and are arranged side by side in the horizontal direction so as to be coaxial with the drive motor 34B. There is. The two multi-blade centrifugal fans 35 (35c, 35d) are driven by one drive motor 34B.

  The multiple multi-blade centrifugal fans 35 (35a to 35d) and the drive motors 34A and 34B are arranged side by side in the horizontal direction so as to be coaxial. The drive motors 34A and 34B are arranged at positions near the center of the housing 20 in the horizontal direction (longitudinal direction of the housing 20) and are adjacent to each other. The multi-blade centrifugal fan 35 (35a, 35b) is arranged at a position outside the drive motor 34A in the horizontal direction, and the multi-blade centrifugal fan 35 (35c, 35d) is arranged outside the drive motor 34B in the horizontal direction. It is located in the position.

  When the above configuration is adopted, the multi-blade centrifugal fan 35 (35a, 35b) driven by the drive motor 34A and the multi-blade centrifugal fan 35 (35c, 35d) driven by the drive motor 34B. With regard to and, it is possible to easily achieve different rotation speed, air volume, blowing direction, etc., and to separate winds with different temperatures and wind speeds on the left and right sides, providing a more finely conditioned air to the user. It becomes possible to do.

[Embodiment 7]
FIG. 17 is a plan view showing a blower included in the air conditioner according to the seventh embodiment. FIG. 18 is a front view showing a part (a drive motor 34A, a multi-blade centrifugal fan 35, and a casing 36 (36a, 36b)) of the blower provided in the air conditioner according to the seventh embodiment. The present embodiment is different from the other embodiments described above in the configuration of the casing 36 included in the blower.

  Each of the plurality of casings 36 (36a to 36d) forms a spiral flow passage 36S (FIGS. 3 and 4) inside, and surrounds each of the plurality of multi-blade centrifugal fans 35 (35a to 35d). This embodiment is common to the above-described embodiments in that it is arranged so as to cover (see FIG. 17). In addition, each of the plurality of casings 36 (36a to 36d) is arranged so as to open toward the heat exchanger 38 side, which is also common to the present embodiment and the above-described embodiments. (See FIG. 22).

  As shown in FIGS. 18 to 22, in the present embodiment, on the other hand, a frame 36F and a plurality of guide fins 36T are provided on the heat exchanger 38 side of each of the casings 36 (36a to 36d), and A through hole 36Y (FIG. 20) is provided on one side in the axial direction of the blade centrifugal fan 35, and a through hole 36J (FIG. 21) is provided on the other side in the axial direction of the multi-blade centrifugal fan 35. The through-hole 36Y and the through-hole 36J are located on opposite sides of the multi-blade centrifugal fan 35 with the multi-blade centrifugal fan 35 sandwiched therebetween (FIG. 22).

  The frame portion 36F is formed in a rectangular frame shape, and has a shape that extends outward in a flange shape on the front surface side of the casing 36 (FIGS. 18 and 19). The shape of the inner peripheral surface of the frame portion 36F is such that the flow passage cross-sectional area of the opening 36H formed on the downstream side (front side) of the multi-blade centrifugal fan 35 gradually increases from the upstream side toward the downstream side. Is formed in.

  The plurality of guide fins 36T are arranged side by side inside the frame portion 36F with a space therebetween so as to extend along a direction perpendicular to the rotation axis (rotation axes 37A and 37B) of the multi-blade centrifugal fan 35. There is. In the present embodiment, a total of five guide fins 36T are arranged inside the frame portion 36F. The guide fin 36T located at the center of the five has a flat plate shape.

  The two guide fins 36T located on both outer sides of the flat plate-shaped guide fin 36T are formed so as to curve toward the outer side from the upstream side toward the downstream side. The two guide fins 36T located on the both outer sides are also formed so as to curve outward from the upstream side toward the downstream side. The guide fins 36T arranged on the outer side are formed so as to curve more sharply toward the outer side than the guide fins 36T arranged on the inner side thereof.

  As shown in FIG. 22, the plurality of guide fins 36T configured as described above form a ventilation path formed between each of the plurality of multi-blade centrifugal fans 35 (35a to 35d) and the heat exchanger 38. , The multi-blade centrifugal fan 35 is divided in a direction perpendicular to the rotation axis (rotation axes 37A and 37B). With this configuration, it is possible to more uniformly blow air to the heat exchanger 38 in the longitudinal direction, and it is possible to provide an air conditioner equipped with the air purifying filter 32 with higher energy saving.

[Embodiment 8]
The air conditioner 101 according to Embodiment 8 will be described with reference to FIGS. 23 to 25. FIG. 23 is a perspective view showing the air conditioner 101. 24 is a cross-sectional view taken along the line XXIV-XXIV in FIG. For convenience of description, the wind direction adjusting unit 40 (see FIGS. 1, 2, 23, etc.) is not shown in FIG. FIG. 25 is a plan view schematically showing the blower 33, the heat exchanger 38, and the control unit 39 provided in the air conditioner 101. The eighth embodiment differs from the above-described first to seventh embodiments in the following points.

(Housing 20)
23 and 24, in the present eighth embodiment, housing 20 of air conditioner 101 has an upper surface 21 arranged to face a ceiling (see ceiling 11 in FIG. 11), and a floor. A lower surface 22 located on the side of the surface (see the floor surface 13 in the figure), a back surface 23 (FIG. 24) disposed on the side wall (see the side wall 12 of the same figure), and an opposite side of the back surface 23. A front side 24 (FIG. 24), a side wall 26 (FIG. 23) located on the right side from the back side 23 to the front side 24, and a side wall 25 (FIG. 23) located on the left side from the back side 23 toward the front side 24. is doing.

  In the eighth embodiment, assuming that the height of the housing 20 is h [mm] (FIG. 24) and the lateral width of the housing 20 is W [mm] (see FIG. 23), the relationship of W≧4×h is established. is doing. The height h of the housing 20 means the uppermost portion of the portion forming the upper surface 21 of the housing 20 in the vertical direction and the vertical direction of the portion forming the lower surface 22 of the housing 20. Is the distance in the vertical direction between the lowermost part of the. In addition, the lateral width W of the housing 20 refers to the leftmost portion in the horizontal direction of the portion forming the side wall 25 of the housing 20 and the horizontal portion of the portion forming the side wall 26 of the housing 20. The distance in the horizontal direction from the rightmost portion in the direction.

  In each of the above-described first to seventh embodiments, the upper surface 21 side of the housing 20 is closed, and the suction port 22H (FIGS. 3 and 4) is formed in the lower surface 22 of the housing 20. On the other hand, in the ninth embodiment, as shown in FIGS. 23 and 24, the upper surface 21 side of the housing 20 is not closed, and the upper surface 21 is provided with the suction port 21H. The suction port 21H is provided in a portion of the upper surface 21 near the rear surface 23. A suction port 22H (FIG. 24) is also formed on the lower surface 22 of the housing 20. A front cover 21C extending in the horizontal direction (left-right direction) is provided at a position further forward of the front end portion 21F of the upper surface 21.

  Inside the housing 20, in addition to the air filter 31 and the air cleaning filter 32, an air filter 31A and an air cleaning filter 32A are further provided. The air filter 31A is arranged below the suction port 21H provided on the upper surface 21 side so as to close the suction port 21H from the inside of the housing 20, and the air cleaning filter 32A covers the air filter 31A from the lower side. It is located in. The air cleaning filter 32A is also composed of, for example, a HEPA filter.

  In the air conditioner 101 of the present embodiment, not only is air taken into the housing 20 through the suction port 22H (FIG. 25), the air filter 31 (FIG. 25) and the air cleaning filter 32 (FIG. 25), Air is taken into the housing 20 through the suction port 21H, the air filter 31A, and the air cleaning filter 32A.

  The air then passes through the heat exchanger 38 and the opening 27 (the front upper opening 28 or the front lower opening 29) and is formed on the front surface 24 side in a state where the wind direction is adjusted by the wind direction adjusting unit 40 (FIG. 23). The air is blown out of the machine through the air outlet (that is, the front upper blowing portion 28H shown in FIG. 10 or the front lower blowing portion 29H shown in FIG. 14). According to the air conditioner 101 of the eighth embodiment, the air volume can be increased as compared with the air conditioners of the above-described first to seventh embodiments. The technical idea of providing the suction port 21H on the upper surface 21 side without closing the upper surface 21 side can be implemented in combination with the idea described in each of the above-described first to seventh embodiments.

(Blower 33)
Referring to FIG. 25, in the present eighth embodiment, blower 33 arranged inside housing 20 includes a first blower 33A and a second blower 33B. The first air blower 33A and the second air blower 33B are arranged side by side in the horizontal direction (here, the left-right direction connecting the side wall 25 and the side wall 26).

  The first blower unit 33A includes a drive motor 34A (first drive motor) and two multi-blade centrifugal fans 35 (35a, 35b) connected to the drive motor 34A via a rotation shaft 37A. The multi-blade centrifugal fan 35 (35a, 35b) constitutes a first blower fan unit. The first blower fan unit may be composed of one multi-blade centrifugal fan 35. The first blower fan unit may include a plurality of (three or more) multi-blade centrifugal fans 35 arranged side by side in the horizontal direction so as to be coaxial with each other via the rotation shaft 37A.

  The second blower unit 33B includes a drive motor 34B (second drive motor) and two multi-blade centrifugal fans 35 (35c, 35d) connected to the drive motor 34B via a rotation shaft 37B. The multi-blade centrifugal fan 35 (35c, 35d) constitutes a second blower fan unit. The second blower fan unit may be composed of one multi-blade centrifugal fan 35. The second blower fan unit may include a plurality of (three or more) multi-blade centrifugal fans 35 arranged side by side in the horizontal direction so as to be coaxial with each other via the rotation shaft 37B.

  The sizes, shapes, dimensions, product specifications, etc. of the various elements forming the first air blower 33A and the sizes, shapes, dimensions, product specifications, etc. of the various elements forming the second air blower 33B are described. It is recommended to set the same. By using common parts and equipment, manufacturing costs can be reduced.

(Control unit 39)
A control unit 39 (FIG. 25) is arranged at a position closer to the center of the housing 20 (FIG. 23) in the horizontal direction. The control unit 39 internally stores a control device 39C (CPU, RAM, ROM, and/or microcomputer, etc.). The control device 39C controls the operations of the first blower unit 33A and the second blower unit 33B (such as the number of rotations of the fan). The operation of the heat exchanger 38 (such as the refrigerant flow rate) may be further controlled by the control device 39C.

  Under the control of the control unit 39, at least one of the first air blowing unit 33A and the second air blowing unit 33B is driven. As a result, air is taken into the housing 20 from the suction ports 21H and 22H (FIG. 24), and the air passes through the heat exchanger 38 to become conditioned air. The air is blown to the outside through the portion 28H or the front lower blowing portion 29H shown in FIG.

(Action and effect)
Regarding the size of a so-called wall-mounted air conditioner, for example, the traditional characteristic of Japanese houses is that the space beside the window is halfway (about 90 cm) and the space above the window is 5 inches long (about 45 cm). ), the width of the housing of the air conditioner is set to about 86 cm, and the height of the housing is set to about 30 cm.

  In recent years, there has been an increasing demand for larger windows on walls. That is, there are increasing cases in which a window having a very large frontage having a wide width and a high height is provided in a room. Along with this, the space available for installing the air conditioner may be about 30 cm wide beside the window. Increasingly, it is becoming necessary to install the air conditioner above the window rather than next to it.

  When installing the air conditioner in a space with a small height provided above the window, the height of the air conditioner may be set to less than 25 cm, for example, in order to secure a flow path for sucking air. Conceivable. In order to secure the specified performance and energy saving, it is conceivable to make the width of the housing of the air conditioner larger than, for example, 1 m, but in that case, the length of the blower in the axial direction should be greatly increased. Is required. However, when the length of the blower in the axial direction is significantly increased, a slight manufacturing error or installation error (core deviation) may cause vibration and noise.

  That is, when considering an air conditioner in which the width of the housing is four times or more the height of the housing, it is not easy to stably rotate the fan due to the structure of the air conditioner, and the fan is not easy to rotate. Vibration and noise due to the rotation of the are likely to occur. To prevent this, for example, a measure of setting the rotation speed of the blower to a low value may be considered, but it is difficult to obtain energy saving with this measure.

  A high-performance filter may be installed to enhance the air purification capacity of the air conditioner. Since a high-performance filter easily causes pressure loss, it is necessary to rotate the fan at a high rotation speed to obtain the air volume. A fan that rotates at a high rotational speed tends to be a source of vibration and noise. It is not easy to realize low vibration and low noise in an air conditioner in which the width of the housing is four times or more the height of the housing.

  On the other hand, according to the air conditioner 101 of the eighth embodiment, the laterally long housing 20 is such that the lateral width W [mm] of the housing 20 is 4 times or more the height h [mm] of the housing 20. Nevertheless, the blower 33 includes the first blower 33A and the second blower 33B that are adjacent to each other in the horizontal direction, and the rotation provided in the first blower 33A and the second blower 33B of the blower 33, respectively. The shafts 37A and 37B (FIG. 25) can be configured to be relatively short, and the multi-blade centrifugal fan 35 (35a to 35d) can be stably rotated. As a result, it is possible to realize stable air blowing and reduce vibrations due to core deviation, so that it is possible to reduce noise due to rotation of the fan and to realize an air conditioner capable of ensuring energy saving.

(Other Configuration 1 for Eighth Embodiment)
The first blower fan unit (multiblade centrifugal fans 35a, 35b) and the second blower fan unit (multiblade centrifugal fans 35c, 35d) may be driven at different rotational speeds. It is possible to make the amount and speed of conditioned air blown out from the side of the first air blower 33A different from the amount and speed of conditioned air blown out from the side of the second air blower 33B. For example, conditioned air having two kinds of air flow rates and wind speeds can be blown out from the outlet of the air conditioner, for example, strong wind is blown out from the left side of the air conditioner and weak wind is blown out from the right side. It is possible to obtain such an effect.

(Other Configuration 2 for Eighth Embodiment)
As shown in FIG. 26, the heat exchanger 38M (first heat exchanger) is arranged so as to face the first air blower 33A and the heat exchanger 38N (second heat blower) faces the second air blower 33B. (Exchanger) may be arranged. For example, the control device 39C of the control unit 39 operates a refrigerant flow rate adjusting device (not shown) so that the flow rate of the refrigerant flowing through the heat exchanger 38M and the flow rate of the refrigerant flowing through the heat exchanger 38N are mutually different. It may be adjusted to an independent value, or the flow rate may be adjusted in such a way that they are interlocked. By adjusting the air volume and the temperature of the conditioned air blown out from the first air blower 33A and the second air blower 33B, respectively, high temperature hot air is blown from the left side of the air conditioner and low temperature is blown from the right side. It is possible to obtain the effect that the conditioned air having two kinds of temperatures can be blown out from the outlet of the air conditioner, such as the warm air of. Make the size, shape, dimensions, product specifications, etc. of the various elements that make up the heat exchanger 38M the same as the size, shape, dimensions, product specifications, etc., of the various elements that make up the heat exchanger 38N. Good to set. By using common parts and equipment, manufacturing costs can be reduced.

  In summary of the other configurations 1 and 2 described above, the control device 39C of the control unit 39 has the same refrigerant flow rate with respect to the first blower unit 33A, the second blower unit 33B, the heat exchanger 38M, and the heat exchanger 38N. The same rotation speed may be issued, the same refrigerant flow rate and different rotation speed may be issued, different refrigerant flow rates and the same rotation speed may be issued, or different refrigerant flow rates and different rotation speeds may be issued. You may give some instructions.

(Other Configuration 3 for Eighth Embodiment)
As shown in FIG. 27, a front upper blow-out portion 28H1 and a front upper blow-out portion 28H2 may be provided on the front surface 24 of the housing 20. In this case, the first airflow direction adjusting device (louver) may be provided inside the front upper blowout portion 28H1, and the second airflow direction adjusting device (louver) may be provided inside the front upper blowout portion 28H2. The first airflow direction adjusting device adjusts the airflow direction of the conditioned air generated by the first air blowing unit 33A (FIG. 26) and the heat exchanger 38M (FIG. 26). The second airflow direction adjusting device adjusts the airflow direction of the conditioned air generated by the second air blowing unit 33B (Fig. 26) and the heat exchanger 38N (Fig. 26).

  As shown in FIG. 27 and FIG. 28, for example, the wind direction of the conditioned air blown out from the front upper blowing portion 28H1 (arrow DR1) is set to be the same as the horizontal direction in the vertical direction and is set to the left side in the horizontal direction. To be done. The wind direction of the conditioned air blown out from the front upper blowing portion 28H2 (arrow DR2) is set to be upward in the vertical direction and is set to the center (front surface) in the horizontal direction. With such a configuration, the wind directions of the two types of conditioned air blown out from the air outlet of the air conditioner 101 (here, the front upper blowing portion 28H1 and the front upper blowing portion 28H2) are set in different directions. can do.

(Other Configuration 4 for Eighth Embodiment)
As shown in FIG. 29, a front lower blow-out portion 29H1 and a front lower blow-out portion 29H2 may be provided on the front surface 24 of the housing 20. Also in this case, the first airflow direction adjusting device (louver) may be provided inside the front lower blowout part 29H1, and the second airflow direction adjusting device (louver) may be provided inside the front lower blowout part 29H2. The first airflow direction adjusting device adjusts the airflow direction of the conditioned air generated by the first air blowing unit 33A (FIG. 26) and the heat exchanger 38M (FIG. 26). The second airflow direction adjusting device adjusts the airflow direction of the conditioned air generated by the second air blowing unit 33B (Fig. 26) and the heat exchanger 38N (Fig. 26).

  As shown in FIGS. 29 and 30, for example, the wind direction of the conditioned air blown out from the front lower blow-out portion 29H1 (arrow DR1) is set to be the same as the horizontal direction in the up-down direction and is set to the left side in the left-right direction. To be done. The wind direction of the conditioned air blown out from the front lower blow-out portion 29H2 (arrow DR2) is set upward in the vertical direction and set to the center (front) in the horizontal direction. With this configuration also, the wind directions of the two types of conditioned air blown out from the air outlets of the air conditioner 101 (here, the lower front blowing portion 29H1 and the lower front blowing portion 29H2) are directed to different directions. Can be set.

(Other Configuration 5 for Eighth Embodiment)
As shown in FIG. 31, the first air blower 33A and the second air blower 33B may be provided at positions opposite to each other across the control unit 39 in the horizontal direction. In this case, the drive motor 34A (first drive motor) may be arranged between the multi-blade centrifugal fans 35a and 35b (first blower fan unit) and the control unit 39 in the horizontal direction. The drive motor 34B (second drive motor) may be arranged between the multi-blade centrifugal fans 35c and 35d (second blower fan unit) and the control unit 39 in the horizontal direction.

  According to this configuration, the vibration mode generated in each of the first blower 33A and the second blower 33B can be divided at the position of the controller 39, and the vibration mode generated in the first blower 33A and the second blower 33B can be divided. It is possible to suppress the amplification of the vibration due to the superposition phenomenon with the vibration mode generated in 1., and as a result, it is possible to reduce the vibration generated from the air conditioner 101. In addition, according to the above configuration, handling of electric wiring can be simplified.

(Other Configuration 6 for Eighth Embodiment)
As shown in FIG. 32, the drive motor 34A and the drive motor 34B may be arranged separately from each other, and the control unit 39 may be arranged below the drive motors 34A and 34B in the gravity direction. With this configuration as well, the vibration mode generated in each of the first blower 33A and the second blower 33B can be divided at the position of the controller 39, and the vibration mode generated in the first blower 33A and the second blower 33B can be divided. It is possible to suppress the amplification of the vibration due to the superposition phenomenon with the vibration mode generated in 1., and as a result, it is possible to reduce the vibration generated from the air conditioner 101. Further, since the vibration noise that may propagate to the lower part of the air conditioner 101, that is, the living space can be shielded by the presence of the control unit 39, as a result, the noise generated from the air conditioner 101 can be reduced.

(Still another configuration of the eighth embodiment)
The configurations described in the above-described eighth embodiment and other configurations 1 to 6 can be implemented in combination with the configurations described in the above-described first to seventh embodiments. It is also possible to implement it independently of the configurations described in 1 to 7. When adopting the configuration described in the above-described eighth embodiment, for example, the wind direction adjusting unit having the configuration described in the first to seventh embodiments is not essential. The suction port 22H (see FIGS. 2 and 3) may not be formed on the lower surface 22 side, and the suction port 22H may be formed on the upper surface 21 and/or the side walls 25, 26 side. The outlets are not limited to the configurations shown in the front upper outlet 28H (FIG. 9) and the front lower outlet 29H (FIG. 13), and the outlets may be formed on the lower surface 22 side and the upper surface 21 and It may be formed on the side of the side walls 25 and 26.

  When the suction port is provided on the side wall 25, an air filter may be arranged so as to cover the suction port of the side wall 25 from the inside of the housing 20, and the air cleaning filter may be arranged inside the air filter. When the suction port is provided on the side wall 26, an air filter may be arranged so as to cover the suction port of the side wall 26 from the inside of the housing 20, and the air cleaning filter may be arranged inside the air filter.

  The air filter 31 does not have to be arranged above the suction port 22H. If the air filter 31 is arranged so as to cover the suction port 22H from the inside of the housing 20, the air filter 31 may be arranged below or on the side of the suction port 22H, for example. Similarly, the air purifying filter 32 does not have to be arranged above the air filter 31. As long as the air cleaning filter 32 is arranged so as to cover the air filter 31 from the inside of the housing 20, the air cleaning filter 32 may be arranged below or on the side of the air filter 31, for example. The blower 33 is not limited to be provided above the air purification filter 32 as long as it is provided inside the housing 20, and may be provided below or on the side of the air purification filter 32, for example.

  Although the embodiments have been described above, the above disclosure is illustrative in all points and not restrictive. The technical scope of the present invention is shown by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

  10 rooms, 11 ceiling, 12, 14, 16, 25, 26, 36W side wall, 13 floor surface, 20 housing, 21 upper surface, 21C front cover, 21F, 24T front end portion, 21H, 22H suction opening, 22 lower surface, 23 rear surface , 24 front surface, 25A, 25B front end, 27, 36H opening, 28 front upper opening, 28H, 28H1, 28H2 front upper blowing portion, 29 front lower opening, 29H, 29H1, 29H2 front lower blowing portion, 31, 31A air filter, 32, 32A air purifying filter, 33 blower, 33A first blower section, 33B second blower section, 34, 34A, 34B drive motor, 35, 35a, 35b, 35c, 35d multi-blade centrifugal fan, 35F blade section, 35P, 35Q frame body, 35R boss, 36 casing, 36F frame portion, 36J, 36Y through hole, 36S flow path, 36T guide fin, 37, 37A, 37B rotating shaft, 38, 38M, 38N heat exchanger, 38A upper heat exchange portion , 38B Lower heat exchange part, 39 Control part, 39C Control device, 40 Wind direction adjustment part, 41 Movable panel, 41A Upper end, 41B Lower end, 41T, 42T, 43T Shaft support part, 41U support part, 42 Upper wind direction plate, 42A, 43A Tip, 43 lower wind direction plate, 100, 101 air conditioner, W width, h height.

Claims (4)

An air conditioner installed on the top or ceiling of the side wall of the room,
An upper surface arranged to face the ceiling, a lower surface located on the floor surface side, a rear surface arranged on the side wall side, and a front surface located on the side opposite to the rear surface, and a suction port. And a housing in which an air outlet is formed on the front side,
A blower arranged inside the housing,
A heat exchanger arranged in front of or above the blower,
If the height of the housing is h [mm] and the lateral width of the housing is W [mm], then a relationship of W≧4×h holds.
The blower is
A first blower unit having a first drive motor and a first blower fan unit connected to the first drive motor;
A second blower having a second drive motor and a second blower fan unit connected to the second drive motor;
The first blower unit and the second blower unit are arranged side by side in the horizontal direction,
By driving at least one of the first blower unit and the second blower unit, air is taken into the inside of the housing from the suction port, and the air passes through the heat exchanger so that conditioned air is obtained. Next, it is blown out through the outlet,
Air conditioner. A control unit is arranged at a position closer to the center in the horizontal direction of the housing,
The control unit internally stores a control device for controlling operations of the first blower unit and the second blower unit,
The first blower unit and the second blower unit are provided at positions opposite to each other across the control unit in the horizontal direction,
The first drive motor is arranged between the first blower fan unit and the control unit in the horizontal direction,
The second drive motor is arranged between the second blower fan unit and the control unit in the horizontal direction,
The air conditioner according to claim 1. Further equipped with an air purifying filter,
The air cleaning filter is composed of a HEPA filter, and is arranged so as to close the suction port from the inside of the housing.
The air conditioner according to claim 1 or 2. The first blower fan unit and/or the second blower fan unit includes a plurality of multi-blade centrifugal fans arranged side by side in a horizontal direction so as to be coaxial with each other via a rotation shaft,
The air conditioner according to any one of claims 1 to 3.