TWI654377B - Air conditioner - Google Patents

Abstract

An air conditioner is provided on the upper part of the side wall or ceiling of a room, and is provided with a frame body and a blower (33). If the height of the frame is h [mm] and the width of the frame is W [mm], the relationship of W ≧ 4 × h holds. The air blower (33) includes a first air blower (33A) and a second air blower (33B) arranged side by side in the horizontal direction. The first blower (33A) has a drive motor (34A) and a first blower fan unit, and the second blower (33B) has a drive motor (34B) and a second blower fan unit. By rotating the fan steadily, vibration and noise can be effectively suppressed.

Description

Air conditioner

This manual is about the air conditioner installed in the upper part of the side wall or ceiling of the room. This application claims priority based on Japanese Patent Application No. 2017-140998 filed on July 20, 2017. All the contents described in the Japanese patent application are incorporated into this specification by reference.

The following Patent Documents 1 to 8 disclose technologies related to air conditioners (so-called air conditioners). Air conditioners generally generate airflow by driving the motor to rotate the fan.

The following Patent Document 9 discloses an invention related to the mounting angle for mounting the fan to the drive motor. It is described in Patent Document 9 that by optimizing the installation angle, the vibration of the entire fan unit can be reduced.

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

Patent Document 1: Japanese Patent No. 3141867 Patent Document 2: Japanese Patent Laid-Open No. 2015-169389 Patent Document 3: Japanese Patent Laid-Open No. 2016-099090 Patent Document 4: Japanese Patent Laid-Open No. 2016-183794 Patent Document 5: Japanese Patent No. 4932916 Patent Document 6: Japanese Patent Laid-Open No. 2012-063133 Patent Document 7: Japanese Patent No. 4604536 Patent Document 8: Japanese Patent Laid-Open No. 2005-315538 Patent Document 9: Japanese Patent Laid-Open No. 2016-114009 Patent Document 10: Japanese Patent Application Publication No. 2013-142502

When the fan installed in the frame of the air conditioner cannot rotate stably, it is easy to generate vibration and noise. Considering the case of an air conditioner whose width of the frame is more than 4 times the height of the frame, the structure of the air conditioner is not easy to make the fan rotate stably, and it is easy to produce vibration and noise due to the rotation of the fan.

In order to improve the air purification capacity of the air conditioner, high-performance filters are sometimes installed. High-performance filters are easy to cause pressure loss, so in order to obtain the air volume, the fan must be rotated at a high speed. Fans rotating at high speeds can easily become a source of vibration and noise. In an air conditioner whose width of the frame is more than 4 times the height of the frame, it is not easy to achieve low vibration or low noise, and it is currently difficult to achieve low vibration, low noise and high air purification capacity in this type of air conditioner .

The purpose of this specification is to disclose an air conditioner that has a structure that can effectively suppress vibration and noise generation by realizing stable rotation of a fan.

The air conditioner according to the present invention is provided in the upper part of the side wall of the room or the ceiling, and includes a frame body having an upper surface arranged facing the ceiling, a lower surface located on the floor surface side, a rear surface arranged on the side wall surface, and A suction port is formed on the front side opposite to the back side, and a blow-off port is formed on the front side; the blower is arranged inside the frame; and the heat exchanger is arranged in front of or above the blower. The height is set to h [mm], and the width of the frame is set to W [mm], then the relationship of W ≧ 4 × h holds. The blower includes: a first blower part, which has a first drive motor, and a connection A first blower fan unit in the first drive motor; and a second blower part having a second drive motor and a second blower fan unit connected to the second drive motor, the first blower part and the second The air blowing parts are arranged in a horizontal direction, and at least one of the first air blowing part and the second air blowing part is driven, air is taken into the interior of the frame from the suction port, and air passes through the heat Exchanger Of conditioned air, is blown out through the air outlet to the outside.

In this air conditioner, it is preferable that a control unit is arranged near the center in the horizontal direction of the frame body, and the control unit houses therein a control for controlling the operations of the first air blower and the second air blower The machine, the first air blower and the second air blower are disposed on opposite sides of the control part sandwiching the control part in the horizontal direction, and the first drive motor is arranged in the horizontal direction. The first air blower fan unit and the control Between the parts, the second drive motor is arranged between the second blower fan unit and the control part in the horizontal direction.

In the air conditioner, it is preferable to further include an air cleaning filter composed of a HEPA filter and arranged to close the suction port from the inside of the frame.

In the air conditioner, it is preferable that the first blower fan unit and / or the second blower fan unit include a plurality of multi-blade centrifugal fans, and the plurality of multi-blade centrifugal fans are arranged in a coaxial manner through the rotation axis In the horizontal direction.

According to this air conditioner, by stably rotating the fan, vibration and noise can be effectively suppressed.

The embodiment will be described below with reference to the drawings. For the same parts and corresponding parts, the same reference symbols are sometimes marked, and sometimes the explanations are not repeated.

[Embodiment 1] The configuration of the air conditioner 100 in 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. 8 to 15. FIG. 1 is a perspective view showing how the air conditioner 100 is installed in the room 10. FIG. 2 is a perspective view of the air conditioner 100. FIG. 3 is an arrow sectional view taken along line III-III in FIG. 2, and FIG. 4 is an arrow sectional view taken along line IV-IV in FIG. 2.

As shown in FIGS. 1 and 2, the air conditioner 100 is used as a so-called air conditioner (Air Conditioner). The air conditioner 100 of the present embodiment fixes the back surface 23 (FIG. 3 and FIG. 4) of the housing 20 to the side wall 12 using metal parts (not shown) or the like. Not limited to such a fixing structure, the upper surface 21 of the frame body 20 may be fixed to the ceiling 11 of the room 10 by using metal parts or the like, whereby the air conditioner 100 is installed on the ceiling 11.

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 air direction adjustment unit 40.

(Frame 20) The frame 20 has an upper surface 21 arranged facing the ceiling 11 of the room 10, a lower surface 22 located on the side of the floor surface (refer to the floor surface 13 in FIG. 11), and arranged on the side wall 12 (FIG. 1, FIG. 11) The back surface 23 on the side, the front surface 24 on the opposite side to the back 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 long side disposed on the housing 20 The side wall 26 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 suction port 22H is formed in the lower surface 22 (FIGS. 3 and 4). The suction port 22H extends in a substantially horizontal direction so as to follow the longitudinal direction of the housing 20.

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

The details will be described later, and the shaft support portions 41T, 42T, and 43T each have a rod-like shape. The shaft support portions 41T, 42T, and 43T all extend in a direction perpendicular to the paper surface of FIGS. 3 and 4. Both ends of the shaft support portion 41T, both end portions of the shaft support portion 42T, and both end portions of the shaft support portion 43T The side wall 25 and the side wall 26 are fixed.

Between the front end portion 24T of the front surface 24 and the front end portion 21F of the upper surface 21, the shaft support portions 41T, 42T, 43T as described above are arranged, thereby dividing the space between the front end portion 24T of the front surface 24 and the front end portion 21F of the upper surface 21, The space (opening 27) on the front side of the housing 20 is formed with a front upper opening 28 and a front lower opening 29.

(Air Filter 31 and Air Cleaning 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 to block the suction port 22H from the inside of the housing 20 above the suction port 22H. The air cleaning filter 32 is arranged above the air filter 31. The air cleaning 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 before the blower 33. Not limited to the above-mentioned configuration, the heat exchanger 38 may be disposed above the front side of 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.

A plurality of multi-blade centrifugal fans 35 (35a to 35d) are connected to the drive motor 34 through the rotation shaft 37, and are arranged in a horizontal direction so as to be coaxial with the drive motor 34. In the present embodiment, a plurality of multi-blade centrifugal fans 35 (35a to 35d) are provided on each of one side and the other side in the axial direction of the drive motor 34. The multi-blade centrifugal fan 35 (35a, 35b) and the multi-blade centrifugal fan 35 (35c, 35d) are arranged at symmetrical positions centered on the position of the drive motor 34. In other words, the driving motor 34 is arranged in the horizontal direction (the longitudinal direction of the casing 20) close to the center of the casing 20, and the multiple multi-blade centrifugal fans 35 (35a to 35d) are arranged outside the driving motor 34 in the horizontal direction s position.

FIG. 6 is a perspective view showing one of the multi-blade centrifugal fans 35 included in the blower 33. The multi-blade centrifugal fan 35 has frame bodies 35P and 35Q formed in a ring shape, a bush 35R standing at the center of the frame body 35Q, and a plurality of blade portions 35F. The frame bodies 35P and 35Q are arranged at positions separated from each other in the axial direction. Each of the plurality of blade portions 35F is supported at both ends by the frame bodies 35P and 35Q. The multi-blade centrifugal fan 35 is connected to the rotating shaft 37 (FIG. 5) through the sleeve 35R. The multi-blade centrifugal fan 35 sends out the air taken in from the inner peripheral side to the outer peripheral side by the rotating plurality of blade portions 35F. The multi-blade centrifugal fan 35 sends out air outward in the radial direction from the center of rotation of the fan by using centrifugal force.

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 this 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 path 36S (FIGS. 3 and 4) formed on the inside, and is arranged to cover each of the plurality of multi-blade centrifugal fans 35 (35a to 35d) Around.

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 opposite sides of the multi-blade centrifugal fan 35 in the direction of the rotation axis (rotation 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 such that the opening 36H opens toward the heat exchanger 38 side.

As shown in FIG. 7, each of the multiple multi-blade centrifugal fans 35 (35a to 35d) is surrounded by each of the multiple shrouds 36 (36a to 36d) as described above, whereby the side wall 36W of the shroud 36 is located Between two adjacent multi-blade centrifugal fans 35. The multi-blade centrifugal fan 35 rotates to take in air from the through-hole 36J, and the centrifugal force of the multi-blade centrifugal fan 35 blows the air toward the front of the casing 36 and blows it to the heat exchanger 38 through the opening 36H. The air that has been heated or cooled by the heat exchanger 38 passes through the following blow-out ports (the front upper blow-out section 28H shown in FIGS. 8 and 9 or the front lower blow-out section 29H shown in FIGS. 12 and 13) ) Blowing out of the machine.

Referring again to FIGS. 3 and 4, the heat exchanger 38 includes an upper heat exchange portion 38A and a lower heat exchange portion 38B. Each of the upper heat exchange portion 38A and the lower heat exchange portion 38B has a plurality of refrigerant tubes (tube materials) and a plurality of fins (plates) that support these refrigerant tubes. The entire upper heat exchange portion 38A is inclinedly arranged so as to extend from the rear toward the front as it goes downward from above, and the entire lower heat exchange portion 38B is inclinedly arranged so as to extend from the rear toward the front as it goes from below to upward.

The entire heat exchanger 38 has a substantially V-shaped shape, and is fixed by the frame body 20 or the like so that the curved portion is located at the forefront side of the heat exchanger 38. The heat exchanger 38 is arranged 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 Section 40) Referring to FIG. 3, as described above, an 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 disposed at a position near the lower end of the front end portion 21F of the upper surface 21, and the shaft support portion 43T is disposed at a position immediately near the front end (near lower portion) of the front end portion 24T of the front surface 24. The shaft support portion 41T is arranged at a position right between the shaft support portion 42T and the shaft support portion 43T.

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

The wind direction adjusting portion 40 is arranged to cover the opening 27 (here, the front upper opening 28 and the front lower opening 29) formed on the front side of the housing 20 from the front side. The wind direction adjusting unit 40 of this embodiment includes a movable panel 41, an upper wind direction plate 42 and a lower wind direction plate 43. The movable panel 41, the upper wind direction plate 42 and the lower wind direction plate 43 all have a plate-like shape, and extend with a length that is substantially the same as the length in the longitudinal direction (horizontal direction) of the frame body 20 (FIG. 1, FIG. 2) .

The movable panel 41 has an upper end 41A and a lower end 41B, and a portion between the upper end 41A and the lower end 41B of the movable panel 41 is formed into a curved concave shape so as to be recessed toward the inner side of the housing 20 (the side of the back surface 23). The height of the movable panel 41 (the distance between the upper end 41A and the lower end 41B) is set to a height dimension slightly larger than the height h of the frame 20. At a position between the upper end 41A and the lower end 41B in the movable panel 41, a support portion 41U is formed so as to protrude toward the back surface (back surface 23), and the support portion 41U has a plate shape.

FIG. 3 shows a cross-sectional shape of the movable panel 41 at a substantially central position in the longitudinal direction (horizontal direction), and FIG. 4 shows a cross-sectional shape of the movable panel 41 at a position near the end 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 supported by the shaft 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 the above-mentioned 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 more pivot support portions 41T so as to be swingable in the 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 that of the movable panel 41. The upper wind direction plate 42 is connected to the shaft support portion 42T so as to be pivotally supported by the shaft through the shaft support portion 42T. The lower wind direction plate 43 is also formed in a plate shape having a height dimension shorter than that of the movable panel 41. The lower wind direction plate 43 is connected to the shaft support portion 43T, and is pivotably supported by the shaft through the shaft support portion 43T.

(Stopped state) In FIGS. 2 to 4, the air conditioner 100 is shown in a state where the operation is stopped. When the air conditioner 100 is switched from the operation state to the operation stop state (that is, when the operation is stopped), each of the movable panel 41 and the upper wind direction plate 42 rotates, so that the back of the movable panel 41 and the upper wind direction plate 42 The front ends 42A are close to each other. Each of the movable panel 41 and the upper wind direction plate 42 is arranged at a position closing the front upper opening 28 by rotating as described above. Similarly, by rotating each of the movable panel 41 and the lower wind direction plate 43, the back surface of the movable panel 41 and the front end 43A of the lower wind direction plate 43 approach each other. Each of the movable panel 41 and the lower wind direction plate 43 is arranged at a position closing the front lower opening 29 by rotating as described above.

(At the time of air-conditioning operation or air-blowing operation) FIG. 8 and FIG. 9 are respectively a perspective view and a side view showing how the air conditioner 100 is in a state of air-conditioning operation or air-blowing operation. FIG. 10 is a cross-sectional view corresponding to FIG. 3 when the air conditioner 100 is in a state of air-conditioning operation or air-blowing operation.

As shown in FIGS. 8 to 10, when the air conditioner 100 is switched to the air-conditioning operation or the air-blowing operation (that is, during the air-conditioning operation or the air-blowing operation), the movable panel 41 and the lower wind direction plate 43 rotate downward. The front end 25B (FIG. 9) of the back surface of the movable panel 41 toward the lower side of the side wall 25, the front end (not shown) of the lower side of the side wall 26 having the same configuration, and the lower wind direction plate 43 are close to the front lower opening 29 (Figure 10) was blocked.

On the other hand, the front upper opening 28 among the openings 27 is opened by the movable panel 41 rotating downward and the upper wind direction plate 42 rotating upward. A front upper blow-out 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). The details will be described later, and in this state, the below-mentioned front-lower blowing portion 29H (FIGS. 13 and 14) is blocked. In this state, a plurality of multi-blade centrifugal fans 35 are rotated by the drive motor 34 (FIG. 5).

The 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 upper opening 28), and the air direction is adjusted by the wind direction adjustment unit 40 (here, the movable panel 41 and the upper wind direction plate 42). The front front upper blowing section 28H blows out of the machine (arrow DR10 shown in FIG. 9).

As shown in FIG. 11, the air that has been blown out from the front upper blower 28H travels along the ceiling 11 and then moves down along the side walls 14 to 16 facing the air conditioner 100. The air further travels along the floor surface 13 to the side of 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 air-conditioning operation, the entire room 10 is cooled by the air flow as described above. In the air conditioner 100, the circulating air flow as described above can be formed in the room 10, and a cool air (cold room) effect or an air supply effect with high efficiency can be obtained.

(At the time of heating operation) FIGS. 12 and 13 are a perspective view and a side view, respectively, showing how the air conditioner 100 is in a state of heating operation. FIG. 14 is a cross-sectional view corresponding to FIG. 3 when the air conditioner 100 is in a state of heating operation.

As shown in FIGS. 12 to 14, when the air conditioner 100 is switched to the heating operation state (that is, during the heating operation), the movable panel 41 and the upper wind direction plate 42 are rotated upward. The front end 25A (FIG. 13) of the rear surface of the movable panel 41 toward the upper side of the side wall 25, the front end (not shown) of the upper side of the side wall 26 having the same configuration, and the upper wind direction plate 42 are close to the front upper opening 28 (Figure 14) was blocked.

On the other hand, when the movable panel 41 is rotated upward and the lower wind direction plate 43 is rotated downward, the front lower opening 29 among the openings 27 is opened. A front lower blowing portion 29H is formed between the lower end 41B of the movable panel 41 and the front end 43A of the lower wind direction plate 43 (below the front of the housing 20). In this state, the above-mentioned front upper blowing portion 28H (FIGS. 9 and 10) is blocked. In this state, a plurality of multi-blade centrifugal fans 35 are rotated by the drive motor 34 (FIG. 5).

The 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 air direction is adjusted by the wind direction adjustment unit 40 (here, the movable panel 41 and the lower wind direction plate 43). The side front lower blowing part 29H blows out of the machine (arrow DR20 shown in FIG. 13).

As shown in FIG. 15, the air that has been blown out from the front lower blower 29H moves down along the side wall 12 and then travels along the floor surface 13. The air further moves upward along the side walls 14-16. By the air flow as described above, the whole room 10 is warmed. In the air conditioner 100, the air flow as described above can be formed in the room 10, and a high-efficiency heating (heating room) effect can be obtained.

(Function and effect) According to the air conditioner 100, a suction port 22H is formed on the lower surface 22 of the casing 20, and the air taken in from the suction port 22H passes through the air filter 31 and the air cleaning filter 32. Therefore, it is possible to perform air conditioning with less energy consumption while always purifying the air. In addition, the air blower 33 implements air blow by arranging a plurality of multi-blade centrifugal fans 35 arranged horizontally. Therefore, by reducing the depth dimension, it is possible to achieve miniaturization compared to the past, to reduce the sense of pressure, and to reduce restrictions on the indoor environment, the improvement of aesthetics, and the like.

Further, in the air conditioner 100 of the present embodiment, the movable panel 41 is supported by the shaft support portion 41T at a substantially central position in the horizontal direction and (vertical direction) height direction of the housing 20. According to this configuration, the movable panel 41 can form a vertically divided air outlet on the front side (front upper and lower front) of the housing 20, even if a complicated structure such as not switching the upper and lower shafts or using a locking mechanism, It is also possible to realize the opening and closing of the blow-off openings of the two-way type with a simple structure.

[Embodiment 2] Referring to FIG. 3, as a suitable embodiment, it is preferable that if the diameter of the multi-blade centrifugal fan 35 is D [mm] and the height of the housing 20 is h [mm], then 0.9 The relationship of × h ≦ 2 × D ≦ 1.1 × h is established. As a more suitable embodiment, it is preferable that the relationship of 0.9 × L ≦ h + 1/2 × D ≦ 1.1 × L holds when the depth of the frame 20 is set to L [mm].

According to such a configuration, the increase in the depth dimension of the frame body 20 is suppressed, and the air supply that can overcome the pressure loss generated in the air cleaning filter 32 can be realized, energy saving can be improved, the sense of pressure can be reduced, and the Limitations of indoor environment or improvement of aesthetics.

[Embodiment 3] 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) when the operation is stopped is set to a. Moreover, the shortest distance from the back surface of the movable panel 41 to the lower end portion of the front lower opening 29 (here, the position of the shaft support portion 43T) when the operation is stopped is defined as b.

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

When each value is defined as above, it is preferable that the relationship of the following formula (1) and formula (2) is established. 0.9 × (a + b) ≦ L1 ≦ 1.1 × (a + b) ‧‧‧Formula (1) 0.9 × (a + b) ≦ L2 ≦ 1.1 × (a + b) ‧‧‧Formula (2) If adopted With the above-described configuration, the airflow control when the air conditioner 100 is used as an air conditioner can be formed with a more concise configuration on the front surface side (front upper and lower front) of the housing 20 to form a blow-off opening in the vertical direction. Even better, and in terms of structure, it is possible to open and close the blow-off openings of the top and bottom type with a simple structure.

[Embodiment 4] Referring to FIG. 10, as a suitable embodiment, it is preferable that the upper wind direction plate 42 is supported by the shaft at the position of the upper end portion of the front upper opening 28; during air-conditioning operation, the upper wind direction plate 42 is supported by the shaft The portion (shaft support portion 42T) is rotated upward toward the center, thereby opening the front upper opening 28, and the straight line connecting the shaft support portion 42T and the front end 42A of the upper wind direction plate 42 becomes forward and downward 20 with respect to the horizontal direction AP Arranged at an angle θ1 below °. According to this configuration, it is possible to send a more suitable air flow from the front upper blowing section 28H when cooling the room. It is possible to further suppress the occurrence of dew on the ceiling, for example.

[Embodiment 5] Referring to FIG. 14, as a suitable embodiment, it is preferable that the lower wind direction plate 43 is pivotally supported at the position of the lower end of the front lower opening 29; during heating operation, the lower wind direction plate 43 is The portion of the shaft support (the shaft support portion 43T) is rotated downward to open the front lower opening 29, and the straight line connecting the shaft support portion 43T and the front end 43A of the lower wind direction plate 43 becomes forward and downward 45 relative to the vertical direction BP The angle is less than θ2. According to this configuration, it is possible to send a more appropriate air flow from the front and lower blowing section 29H when heating the room. For example, it is possible to suppress the situation in which the heating is difficult to reach the floor surface due to buoyancy, and it is possible to obtain an efficient heating effect.

In addition, the lower wind direction plate 43 may be configured in such a manner that during the heating operation, the short circulation phenomenon in which the air blown through the front lower opening 29 is immediately sucked into the suction port 22H is suppressed by the lower wind direction plate 43. It is possible to send out a more suitable air flow when heating the room, and it is also possible to suppress the temperature of the housing 20 from unnecessarily rising, thereby further improving energy saving.

[Embodiment 6] FIG. 16 corresponds to FIG. 5 in the above embodiment, and is a perspective view showing a blower included in the air conditioner in Embodiment 6. FIG. In the above-mentioned embodiment (FIG. 5), four multi-blade centrifugal fans 35 (35 a to 35 d) are driven by one drive motor 34.

In this embodiment (FIG. 16), two multi-blade centrifugal fans 35 (35a, 35b) are connected to one drive motor 34A through a rotating shaft 37A, and are arranged horizontally in a manner coaxial with the drive motor 34A direction. The two multi-blade centrifugal fans 35 (35a, 35b) are driven by a drive motor 34A.

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

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

With the above configuration, 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 can be easily realized. Wind speeds, air volume, blowing wind directions, etc., or different temperatures or wind speeds can be blown separately on the left and right, which can provide users with more delicate air-conditioned wind.

[Embodiment 7] Fig. 17 is a plan view showing a blower included in an air conditioner in Embodiment 7. 18 is a front view showing a part of the blower (drive motor 34A, multi-blade centrifugal fan 35, and casing 36 (36a, 36b)) included in the air conditioner in Embodiment 7. FIG. This embodiment differs 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) has a spiral-shaped flow path 36S (FIGS. 3 and 4) formed inside and is arranged to cover each of the plurality of multi-blade centrifugal fans 35 (35a to 35d) This aspect around is common to the above-described embodiments (see FIG. 17). In addition, each of the plurality of casings 36 (36a to 36d) is arranged to open toward the heat exchanger 38 side, and this embodiment is also common to the above embodiments (see FIG. 22).

On the other hand, as shown in FIGS. 18 to 22, in this embodiment, on the heat exchanger 38 side of each of the casings 36 (36a to 36d), a frame portion 36F and a plurality of deflectors 36T are provided A through hole 36Y is provided on one side of the multi-blade centrifugal fan 35 in the axial direction (FIG. 20), and a through hole 36J is provided on the other side in the axial direction of the multi-blade centrifugal fan 35 (FIG. 21). The through hole 36Y and the through hole 36J are located on opposite sides of the multi-blade centrifugal fan 35 in the direction of the rotation axis of the multi-blade centrifugal fan 35 (FIG. 22).

The frame portion 36F is formed in a rectangular frame shape, and has a shape extending outward in a flange shape on the front side of the housing 36 (FIGS. 18 and 19). The shape of the inner peripheral surface of the frame portion 36F is such that the cross-sectional area of the flow path 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.

The plurality of deflectors 36T are arranged at intervals inside the frame portion 36F so as to extend in a direction perpendicular to the rotation axis (rotation axis 37A, 37B) of the multi-blade centrifugal fan 35. In this embodiment, a total of five guide plates 36T are arranged inside the frame portion 36F. Among the five pieces, the central deflector 36T has a flat shape.

The two deflectors 36T located on both outer sides of the flat deflector 36T are formed to curve outward from the upstream side toward the downstream side. The two deflectors 36T located on both outer sides are also formed to curve outward from the upstream side toward the downstream side. The deflector 36T arranged on the outer side is formed to curve steeper toward the outer side than the deflector 36T arranged on the inner side.

As shown in FIG. 22, the plurality of deflectors 36T configured as described above, the air supply path formed between each of the plurality of multi-blade centrifugal fans 35 (35a to 35d) and the heat exchanger 38 is more than The rotation axis (rotation shafts 37A, 37B) of the wing centrifugal fan 35 is divided in the vertical direction. According to this configuration, the heat exchanger 38 can be more uniformly blown in the longitudinal direction, and it can be an air conditioner equipped with the air cleaning filter 32 with higher energy efficiency.

[Embodiment 8] An air conditioner 101 according to Embodiment 8 will be described with reference to Figs. 23 to 25. FIG. 23 is a perspective view of the air conditioner 101. FIG. 24 is an arrow sectional view taken along the line XXIV-XXIV in FIG. 23. For convenience of description, the wind direction adjustment unit 40 is not shown in FIG. 24 (refer to FIGS. 1, 2, 23, etc.). 25 is a plan view schematically showing the blower 33, the heat exchanger 38, and the control unit 39 included in the air conditioner 101. The eighth embodiment is different from the above-mentioned embodiments 1 to 7 in the following points.

(Frame 20) Referring to FIGS. 23 and 24, in the eighth embodiment, the frame 20 of the air conditioner 101 has an upper surface 21 arranged facing the ceiling (refer to the ceiling 11 in FIG. 11), and is located on the floor surface (refer to FIG. 11 the ground surface 13) the lower surface 22 on the side, the rear surface 23 (FIG. 24) disposed on the side wall (see the side wall 12 in FIG. 11) side, the front surface 24 (FIG. 24) on the side opposite to the rear surface 23, and from the rear surface 23 toward the front 24 The side wall 26 located on the right side (FIG. 23) and the side wall 25 located on the left side from the back 23 toward the front 24 (FIG. 23).

In the eighth embodiment, if the height of the housing 20 is set to h [mm] (FIG. 24) and the width of the housing 20 is set to W [mm] (see FIG. 23), the relationship W ≧ 4 × h Established. The height h of the frame 20 is the vertical direction between the uppermost part of the portion constituting the upper surface 21 of the frame 20 and the lowermost portion of the portion constituting the lower surface 22 of the frame 20 Distance. Moreover, the width W of the frame 20 is between the leftmost portion of the portion constituting the side wall 25 of the frame 20 and the rightmost portion of the portion constituting the side wall 26 of the frame 20 The distance in the horizontal direction.

In each of the above-mentioned Embodiments 1 to 7, the upper surface 21 side of the housing 20 is closed, and the suction port 22H is formed on the lower surface 22 of the housing 20 (FIGS. 3 and 4). On the other hand, in the eighth embodiment, as shown in FIGS. 23 and 24, the upper surface 21 side of the housing 20 is not blocked, and the suction port 21H is formed on the upper surface 21. The suction port 21H is provided in a portion of the upper surface 21 near the back surface 23. A suction port 22H is also formed on the lower surface 22 of the housing 20 (FIG. 24). Further, at a position further forward of the front end portion 21F of the upper surface 21, a front cover 21C extending in the horizontal direction (left-right direction) is provided.

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 to block the suction port 21H from the inside of the housing 20 below the suction port 21H provided on the upper surface 21 side, and the air cleaning filter 32A is arranged to cover the air filter 31A from the lower side. The air cleaning filter 32A is also composed of, for example, a HEPA filter.

The air conditioner 101 of the present embodiment not only takes in air 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), but also The air is taken into the housing 20 through the suction port 21H, the air filter 31A, and the air cleaning filter 32A.

After that, the air passes through the heat exchanger 38 and the opening 27 (the front upper opening 28 or the front lower opening 29), and the air direction is adjusted by the wind direction adjusting unit 40 (FIG. 23), and then passes through the air outlet formed on the front 24 side ( That is, the front upper blowing part 28H shown in FIG. 10 or the front lower blowing part 29H shown in FIG. 14) is blown out of the machine. According to the air conditioner 101 of the eighth embodiment, the air volume can be increased compared to the air conditioners of the above-mentioned first to seventh embodiments. The technical idea of providing the suction port 21H on the upper face 21 side without closing the upper face 21 side can also be implemented in combination with the ideas described in the above-mentioned embodiments 1 to 7.

(Blower 33) Referring to FIG. 25, in the eighth embodiment, the blower 33 disposed inside the 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 air blower 33A includes a drive motor 34A (first drive motor) and two multi-blade centrifugal fans 35 (35a, 35b) connected to the drive motor 34A through a rotation shaft 37A. The multi-blade centrifugal fan 35 (35a, 35b) constitutes a first blower fan unit. The first blower fan unit may also be composed of a multi-blade centrifugal fan 35. The first blower fan unit may include a plurality of (three or more) multi-blade centrifugal fans 35 arranged in a horizontal direction so as to be coaxial through the rotating shaft 37A.

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

The size, shape, size, and product specifications of the various elements that constitute the first blower 33A and the size, shape, size, and product specifications of the various elements that constitute the second blower 33B can be set the same. The commonality of parts and machines can reduce manufacturing costs.

(Control part 39) The control part 39 (FIG. 25) is arrange | positioned near the center position in the horizontal direction of the casing 20 (FIG. 23). The control unit 39 houses a control device 39C (CPU, RAM, ROM, and / or microcomputer) inside. By controlling the device 39C, the operations (the rotation speed of the fan, etc.) of the first air blower 33A and the second air blower 33B are controlled. By controlling the device 39C, the operation of the heat exchanger 38 (refrigerant flow rate, etc.) can be further controlled.

Under the control of the control unit 39, at least one of the first air blower 33A and the second air blower 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 becomes conditioned air by passing through the heat exchanger 38 and is blown out above the front side shown in FIG. 10. The part 28H or the lower blow part 29H shown in the front of FIG. 14) is blown out to the outside.

(Functions and effects) Regarding the size of the so-called wall-mounted air conditioner, considering the traditional characteristics of Japanese houses, for example, the horizontal space of the window is half (approximately 90cm), and the space on the window is 1 foot 5 inches (approximately 45cm ), For example, the width of the frame of the air conditioner is set to about 86 cm, and the height of the frame is set to about 30 cm.

In recent years, the demand to install larger windows on the walls is increasing. In other words, it is increasing that windows with a wide width and a high height and a very large range are installed in the room. Along with this, the space available for installing the air conditioner may be about 30 cm wide on the side of the window. Increasingly, air conditioners are required to be installed above the windows instead of by the windows.

When installing an air conditioner in a space with a small height on the upper side of the window, in order to ensure a flow path for intake air, it is considered to set the height of the air conditioner to less than 25 cm, for example. In order to ensure the predetermined performance or energy saving, although the width of the frame of the air conditioner is considered to be greater than 1 m, for example, in this case, the axial length of the blower must be greatly extended. However, when the length of the blower in the axial direction is greatly extended, the smallest manufacturing error or installation error (core deflection) can cause vibration and noise.

That is, considering the case of an air conditioner whose width of the frame is 4 times or more of the height of the frame, the structure of the air conditioner is not easy to rotate the fan stably, and vibration and noise due to the rotation of the fan are likely to occur . In order to prevent this, for example, a countermeasure for setting the rotation speed of the blower to a low value is considered, but this countermeasure is difficult to obtain energy saving.

In order to improve the air purification capacity of the air conditioner, high-performance filters are sometimes installed. High-performance filters are easy to cause pressure loss, so in order to obtain the air volume, the fan must be rotated at a high speed. Fans rotating at high speeds can easily become a source of vibration and noise. In an air conditioner whose width of the frame body is more than 4 times the height of the frame body, it is not easy to achieve low vibration or low noise.

On the other hand, according to the air conditioner 101 of the eighth embodiment, although the width W [mm] of the frame 20 becomes a long frame 20 which is four times or more the height h [mm] of the frame 20, the blower 33 includes the first air blower 33A and the second air blower 33B adjacent to each other in the horizontal direction, so that the rotating shafts 37A and 37B provided in the first air blower 33A and the second air blower 33B of the blower 33 can be formed shorter (Figure 25), the multi-blade centrifugal fan 35 (35a to 35d) can be rotated stably. With this, the following blower can be realized: stable blower can be realized, and vibration caused by core deflection can be reduced, noise caused by the rotation of the fan can be reduced, and energy saving can be ensured.

(Other configuration 1 related to Embodiment 8) The first blower fan unit (multi-blade centrifugal 35a, 35b) and the second blower fan unit (multi-blade centrifugal 35c, 35d) can be driven at mutually different rotation speeds. The air volume and wind speed of the conditioned air blown from the first air blower 33A side may be different from the air volume and wind speed of the conditioned air blown from the second air blower 33B side. For example, by blowing strong wind from the left side of the air conditioner, and blowing weak wind from the right side, the effect of being able to blow out the conditioned air with two kinds of air volume and wind speed from the air outlet of the air conditioner is obtained.

(Other configuration 2 related to the eighth embodiment) As shown in FIG. 26, the heat exchanger 38M (first heat exchanger) can be arranged to face the first air blower 33A, and the heat exchanger 38N (second heat The exchanger) is arranged to face the second air blower 33B. For example, the control device 39C of the control unit 39 operates the refrigerant flow adjustment device (not shown), whereby 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 can be adjusted to be independent of each other The value can also adjust the flow in the form of such linkage. By adjusting the air volume and temperature of the conditioned air blown out from the first air blower 33A and the second air blower 33B, respectively, high-temperature warm air is blown from the left side of the air conditioner, and low-temperature warm air is blown from the right side. The effect of being able to blow out the conditioned air with two temperatures from the outlet of the air conditioner. The size, shape, size, and product specifications of the various elements that constitute the heat exchanger 38M can be set to be the same as the size, shape, size, and product specifications of the various elements that constitute the heat exchanger 38N. The commonality of parts and machines can reduce manufacturing costs.

Summarizing the other configurations 1 and 2 above, the control device 39C of the control unit 39 can emit the same refrigerant flow rate and the same rotation speed with respect to the first air blower 33A, the second air blower 33B, the heat exchanger 38M, and the heat exchanger 38N The instructions can also issue instructions for the same refrigerant flow rate and different rotation speeds, and can also issue instructions for different refrigerant flow rates and same rotation speeds, and can also issue instructions for different refrigerant flow rates and different rotation speeds.

(Other structure 3 related to the eighth embodiment) As shown in FIG. 27, the front upper blowing part 28H1 and the front upper blowing part 28H2 may be provided on the front surface 24 of the housing 20. In this case, a first wind direction adjusting device (louver) may be provided inside the front upper blowing part 28H1, and a second wind direction adjusting device (louver) may be provided inside the front upper blowing part 28H2. The first wind direction adjusting device adjusts the wind direction of the conditioned air generated by the first blower 33A (FIG. 26) and the heat exchanger 38M (FIG. 26). The second wind direction adjusting device adjusts the wind direction of the conditioned air generated by the second blower 33B (FIG. 26) and the heat exchanger 38N (FIG. 26).

As shown in FIGS. 27 and 28, for example, the wind direction (arrow DR1) of the conditioned air blown from the front upper blower 28H1 is set to be the same as the horizontal direction in the up-down direction, and is set to the left in the left-right direction. The wind direction (arrow DR2) of the conditioned air blown from the front upper blowing section 28H2 is set upward in the up-down direction, and is set to the center (front) in the left-right direction. With such a configuration, the wind directions of the two types of conditioned air blown from the air outlet of the air conditioner 101 (here, the front upper blowing part 28H1 and the front upper blowing part 28H2) can be set to respectively face different directions.

(Other configuration 4 related to the eighth embodiment) As shown in FIG. 29, the front lower blowing portion 29H1 and the front lower blowing portion 29H2 may be provided on the front surface 24 of the housing 20. In this case, a first wind direction adjusting device (louver) may be provided inside the front and lower blowing part 29H1, and a second wind direction adjusting device (louver) may be provided inside the front and lower blowing part 29H2. The first wind direction adjusting device adjusts the wind direction of the conditioned air generated by the first blower 33A (FIG. 26) and the heat exchanger 38M (FIG. 26). The second wind direction adjusting device adjusts the wind direction of the conditioned air generated by the second blower 33B (FIG. 26) and the heat exchanger 38N (FIG. 26).

As shown in FIGS. 29 and 30, for example, the wind direction (arrow DR1) of the conditioned air blown from the front and lower blowing section 29H1 is set to be the same as the horizontal direction in the up-down direction, and set to the left in the left-right direction. The wind direction (arrow DR2) of the conditioned air blown out from the front and lower blowing section 29H2 is set upward in the up-down direction, and set to the center (front) in the left-right 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 lower blowing part 29H1 and the front lower blowing part 29H2) can be set to respectively face different directions.

(Other configuration 5 related to the 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 with the control part 39 sandwiched in the horizontal direction. In this case, the drive motor 34A (first drive motor) may be disposed between the multi-blade centrifugal fans 35a, 35b (first air blower fan unit) and the controller 39 in the horizontal direction. The drive motor 34B (second drive motor) may be disposed between the multi-blade centrifugal fans 35c, 35d (second air blower fan unit) and the control unit 39 in the horizontal direction.

According to this configuration, the vibration modes generated by the first air blower 33A and the second air blower 33B can be divided at the position of the control unit 39, and the vibration mode generated by the first air blower 33A and the second air blow can be suppressed The overlapping phenomenon of the vibration modes generated by the unit 33B amplifies the vibration, and as a result, the vibration generated from the air conditioner 101 can be reduced. In addition, according to the above configuration, the processing of electrical wiring and the like can be simplified.

(Other configuration 6 related to the eighth embodiment) As shown in FIG. 32, the drive motor 34A and the drive motor 34B can be arranged apart from each other, and the control unit 39 can be arranged below the gravity direction of the drive motors 34A, 34B . With this configuration, the vibration modes generated by the first air blower 33A and the second air blower 33B can be divided at the position of the control unit 39, and the vibration modes generated by the first air blower 33A and the first The overlapping phenomenon of the vibration patterns generated by the second blower 33B amplifies the vibration. As a result, the vibration generated by the air conditioner 101 can be reduced. In addition, the presence of the control unit 39 can shield the vibration noise that may be transmitted to the living space below the air conditioner 101, and as a result, the noise generated from the air conditioner 101 can be reduced.

(Another configuration related to Embodiment 8) The configuration described in Embodiment 8 above and other configurations 1 to 6 may be implemented in combination with the configurations described in Embodiments 1 to 7 above, or The configurations described in the above embodiments 1 to 7 are implemented independently. In the case of adopting the configuration described in the above-mentioned eighth embodiment, for example, it is not necessary to include the wind direction adjusting portion having the configuration as described in the first to seventh embodiments. The suction port 22H (see FIGS. 2 and 3) may not be formed on the side of the lower surface 22, and the suction port 22H may also be formed on the side of the upper surface 21 and / or the side walls 25 and 26. The outlet is not limited to the configuration shown in the front upper blowing section 28H (FIG. 9) and the front lower blowing section 29H (FIG. 13). The outlet can be formed on the side of the lower surface 22, or on the upper surface 21 and / or The side of the side walls 25,26.

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

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

Although the embodiments have been described above, the above-mentioned disclosures are examples in all respects and are not restrictive. The technical scope of the present invention is expressed by the patent application scope, and is intended to include the meaning equivalent to the patent application scope and all changes within the scope.

10 Room 11 Ceiling 12, 14, 16, 25, 26, 36W Side wall 13 Floor surface 20 Frame 21 Upper surface 21C Front cover 21F, 24T Front end 21H, 22H Suction port 22 Lower surface 23 Back 24 Front 25A, 25B Front 27, 36H Opening 28 Front upper openings 28H, 28H1, 28H2 Front upper blowout section 29 Front lower openings 29H, 29H1, 29H2 Front lower blowout sections 31, 31A Air filter 32, 32A Air cleaning filter 33 Air blower 33A First air blower 33B Second Blower section 34, 34A, 34B Drive motor 35, 35a, 35b, 35c, 35d Multiblade centrifugal fan 35F Blade section 35P, 35Q Frame body 35R Bushing 36 Shell cover 36F Frame section 36J, 36Y Through hole 36S Flow path 36T Diversion 37, 37A, 37B Rotating shafts 38, 38M, 38N Heat exchanger 38A Upper heat exchange section 38B Lower heat exchange section 39 Control section 39C Control device 40 Wind direction adjustment section 41 Movable panel 41A Upper end 41B Lower end 41T, 42T, 43T Shaft support 41U Support 42 Upper wind direction plates 42A, 43A Front end 43 Lower wind direction plates 100, 101 Air conditioner W Width h Height

FIG. 1 is a perspective view showing how the air conditioner 100 in the embodiment is installed in the room 10. FIG. 2 is a perspective view showing the air conditioner 100 in the embodiment. FIG. 3 is an arrow sectional view taken along the line III-III in FIG. 2. FIG. 4 is an arrow sectional view taken along line IV-IV in FIG. 2. FIG. 5 is a perspective view showing the blower 33 included in the air conditioner 100 in the embodiment. 6 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 in the embodiment. 7 is a plan view schematically showing the blower 33 and the heat exchanger 38 included in the air conditioner 100 in the embodiment. FIG. 8 is a perspective view showing how the air conditioner 100 in the embodiment is in a state of air-conditioning operation or air-blowing operation. FIG. 9 is a side view showing how the air conditioner 100 in the embodiment is in a state of air-conditioning operation or air-blowing operation. FIG. 10 is a cross-sectional view corresponding to FIG. 3 and showing the state of the air conditioner 100 in the embodiment when the air-conditioning operation or the air-blowing operation is performed. FIG. 11 is a perspective view showing how the air conditioner 100 according to the embodiment performs a cooling operation or an air blowing operation in the room 10. FIG. 12 is a perspective view showing how the air conditioner 100 in the embodiment is in a state of heating operation. FIG. 13 is a side view showing how the air conditioner 100 in the embodiment is in a state of heating operation. FIG. 14 is a cross-sectional view corresponding to FIG. 3 and showing how the air conditioner 100 in the embodiment is in a state of heating operation. FIG. 15 is a perspective view showing how the air conditioner 100 in the embodiment performs a heating operation in the room 10. 16 is a perspective view showing a part of the blower included in the air conditioner in Embodiment 6. FIG. 17 is a plan view showing a blower included in the air conditioner in Embodiment 7. FIG. 18 is a front view showing a part of the blower (drive motor 34A, multi-blade centrifugal fan 35, and casing 36 (36a, 36b)) included in the air conditioner in Embodiment 7. FIG. 19 is a perspective view showing the front and upper sides of a part of the blower (drive motor 34A, multi-blade centrifugal fan 35, and casing 36) included in the air conditioner in Embodiment 7. FIG. FIG. 20 is a first perspective view showing the back and upper sides of a part of the blower (drive motor 34A, multi-blade centrifugal fan 35, and casing 36) included in the air conditioner in Embodiment 7. FIG. 21 is a second perspective view showing the state of the back and upper sides of a part of the blower (drive motor 34A, multi-blade centrifugal fan 35, and casing 36) included in the air conditioner in Embodiment 7. FIG. 22 is a plan view schematically showing a blower and heat exchanger 38 included in the air conditioner in Embodiment 7. FIG. Fig. 23 is a perspective view showing the air conditioner 101 in the eighth embodiment. FIG. 24 is an arrow sectional view taken along the line XXIV-XXIV in FIG. 23. 25 is a plan view schematically showing a blower 33, a heat exchanger 38, and a control unit 39 included in the air conditioner 101 in Embodiment 8. FIG. Fig. 26 is a plan view for explaining another configuration 2 of the eighth embodiment. Fig. 27 is a perspective view 1 for explaining another configuration 3 of the eighth embodiment. Fig. 28 is a perspective view 2 for explaining another configuration 3 of the eighth embodiment. Fig. 29 is a perspective view 1 for explaining another configuration 4 of the eighth embodiment. Fig. 30 is a perspective view 2 for explaining another configuration 4 of the eighth embodiment. Fig. 31 is a plan view for explaining another configuration 5 of the eighth embodiment. Fig. 32 is a plan view for explaining another configuration 6 of the eighth embodiment.

Claims (4)

An air conditioner is provided on the upper side wall or ceiling of a room, and is characterized by comprising: a frame body having an upper surface arranged facing the ceiling, a lower surface located on the floor surface side, a rear surface arranged on the side wall surface, and a A suction port is formed on the front side opposite to the back side, and a blow-off port is formed on the front side; a blower is arranged inside the frame; and a heat exchanger is arranged in front of or above the blower. The height of the body is set to h [mm], and the width of the frame is set to W [mm], then the relationship of W ≧ 4 × h is established. The blower includes: a first blower part, which has a first drive motor, and A first blower fan unit connected to the first drive motor; and a second blower part having a second drive motor and a second blower fan unit connected to the second drive motor, the first blower part and the first The two air blowing parts are arranged to be aligned with each other in the horizontal direction, and driven by at least one of the first air blowing part and the second air blowing part Air is taken from the suction port into the interior of the housing, it becomes conditioned air through the air by the heat exchanger, through which the outlet is blown out to the outside. An air conditioner as claimed in item 1 of the patent scope, wherein a control unit is arranged at a position near the center in the horizontal direction of the frame body, and the control unit houses an internal control unit for controlling the first air supply unit and the second A control device for the operation of the air blower, the first air blower and the second air blower are arranged at positions opposite to each other with the control part sandwiched in the horizontal direction, and the first drive motor is arranged in the horizontal direction Between the blower fan unit and the control unit, the second drive motor is arranged between the second blower fan unit and the control unit in the horizontal direction. The air conditioner as claimed in item 1 or 2 of the patent scope further includes an air cleaning filter composed of a HEPA filter and arranged to block the suction port from the inside of the frame. An air conditioner as claimed in item 1 or 2 of the patent application, wherein the first blower fan unit and / or the second blower fan unit include a plurality of multi-blade centrifugal fans that pass through the rotating shaft They are arranged in a horizontal manner in a coaxial manner.