CN110914600A

CN110914600A - Air conditioner

Info

Publication number: CN110914600A
Application number: CN201880040691.4A
Authority: CN
Inventors: 公文由衣; 大塚雅生; 岡孝纪
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2017-07-20
Filing date: 2018-01-26
Publication date: 2020-03-24
Also published as: TWI675993B; JPWO2019016981A1; TW201908668A; WO2019016981A1

Abstract

An air conditioner installed on an upper portion of a side wall or a ceiling of a room, comprising: a casing and a drain pan unit (50) for receiving the drain water dropped from the heat exchanger (38). When the height of the housing is h (mm) and the width of the housing is W (mm), a relationship of W ≧ 4 × h is established. The drain pan unit (50) includes: a groove part (54) and a drainage pipe part (55). The surface portion of the recessed groove (54) has a substantially V-shape in which the height in the vertical direction is highest at the positions of both ends in the horizontal direction of the housing and the height in the vertical direction is lowest at the position near the center. A first end portion (55A) of the drain pipe portion (55) is connected to the recessed portion (54) at a position closer to the center in the left-right direction of the housing, and the drain pipe portion (55) extends from the first end portion (55A) toward the rear side at a position closer to the center in the left-right direction of the housing. The allowable range of the installation error can be ensured, and the piping can be effectively and properly processed.

Description

Air conditioner

Technical Field

The present specification relates to an air conditioner provided on an upper portion of a side wall or a ceiling of a room. The application claims priority based on Japanese patent application No. 2017-140997 applied on 7, 20 and 2017. All the descriptions in this japanese patent application are incorporated herein by reference.

Background

The following patent documents 1 to 9 disclose techniques relating to air conditioners (so-called air conditioners). Patent document 9 discloses an air conditioner having a substantially rectangular shape in plan view. As disclosed in the same document, an air conditioner is generally provided with a drain pan. The drain water dropping from the heat exchanger is received by the drain pan and then discharged to the outside through the drain pipe.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 3141867

Patent document 2: japanese laid-open patent publication No. 2015-16989

Patent document 3: japanese patent laid-open publication No. 2016-099090

Patent document 4: japanese laid-open patent publication No. 2016 & 183794

Patent document 5: japanese patent No. 4932916

Patent document 6: japanese unexamined patent publication No. 2012-063133

Patent document 7: japanese patent No. 4604536

Patent document 8: japanese unexamined patent publication No. 2005-315538

Patent document 9: japanese laid-open patent publication No. 2013-104592

Disclosure of Invention

Problems to be solved by the invention

An air conditioner having a substantially rectangular shape in plan view is easy to increase the width of a casing with respect to the height of the casing, and is difficult to discharge discharged water. That is, generally, a drain pipe is provided at the left end or the right end of the air conditioner. The height position of the drain pan in the vertical direction is set to be higher on one of the left end side and the right end side of the air conditioner and lower on the other of the left end side and the right end side. The drain pan is configured such that a portion between the left end side and the right end side is inclined linearly, and the drain pipe is connected to a lower portion of the drain pan.

For example, in an air conditioner having a configuration in which the height of the casing is less than 25cm and the width of the casing is greater than 1m, the vertical height difference between the left and right ends is small, and the distance between the left and right ends is long. Along with this, the inclination of the drain pan also becomes gentle (close to horizontal). For example, when an air conditioner is installed in a state where the air conditioner (drain pan) is slightly inclined, it may be difficult to quickly discharge the drain water received by the drain pan to the outside without stagnation. That is, in the air conditioner having the above-described configuration, the allowable range of the installation error is likely to be small.

In addition, when the drain pipe is provided at the left or right end of the air conditioner, waste is likely to occur in the proper disposal of the drain pipe and the refrigerant pipe. For example, an air conditioner in which the pipe is taken out from the right side of the casing is conceivable. In the case where such an air conditioner is installed on the left side of the casing so as to be adjacent to the wall surface of the room, it is necessary to extend the piping from the right side to the left side of the casing on the rear surface side of the air conditioner, for example. When the width of the air conditioner is 1m or more, the length required for the piping is increased with the corresponding width, which not only increases the cost of the product and installation, but also wastes valuable global resources such as copper and aluminum.

An object of the present invention is to provide an air conditioner having a structure capable of efficiently and properly handling piping while sufficiently securing an allowable range of an installation error.

Means for solving the problems

An air conditioner disclosed in the present specification is an air conditioner installed on an upper portion of a side wall or a ceiling of a room, and includes: a housing having an upper surface disposed so as to face the ceiling, a lower surface located on a floor side, a rear surface disposed on the side wall side, a front surface located on a side opposite to the rear surface, a right surface located on a right side from the rear surface toward the front surface, and a left surface located on a left side from the rear surface toward the front surface; a blower disposed inside the casing; a heat exchanger disposed in front of or above the blower and connected to an outdoor heat exchanger; a drain pan unit provided below the heat exchanger and receiving drain water dripping from the heat exchanger; when the height of the housing is h (mm) and the width of the housing is W (mm), a relation of W ≧ 4 × h is established, and the drain pan unit includes: a groove portion having a shape extending in a longitudinal direction of the heat exchanger and receiving drain water from the heat exchanger; a drain pipe portion having a first end portion connected to the recessed portion and a second end portion communicating with the outside of the room, the drain pipe portion being configured to discharge the drain received in the recessed portion through the first end portion and the second end portion, the recessed portion being configured to face the heat exchanger and to receive a surface portion of the drain from the heat exchanger, the first end portion of the drain pipe portion being connected to the recessed portion at a position closer to a center in a lateral direction of the casing, the drain pipe portion having a substantially V-shape in which a height in a vertical direction at positions at both ends in the lateral direction of the casing is highest and a height in a vertical direction at a position closer to the center in the lateral direction of the casing is lowest, the drain pipe portion being located at the position closer to the center in the lateral direction of the casing, extending from the first end toward the back side.

In the air conditioner, the heat exchanger includes: a side heat exchanger disposed at a position on the left surface side in the interior of the casing; and a right heat exchanger disposed at a position on the right surface side in the housing, the left heat exchanger and the right heat exchanger being arranged side by side in the left-right direction, the left heat exchanger having a first refrigerant pipe portion connected to the exterior heat exchanger at a position on the right side of the left heat exchanger, the right heat exchanger having a second refrigerant pipe portion connected to the exterior heat exchanger at a position on the left side of the right heat exchanger, the first refrigerant pipe portion and the second refrigerant pipe portion merging or bundling with each other at the position near the center in the left-right direction of the housing and extending toward the back surface side.

In the air conditioner, the drain pipe portion, the first refrigerant pipe portion, and the second refrigerant pipe portion are bundled at the position closer to the center in the left-right direction of the casing and extend toward the back surface side.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the air conditioner, the piping can be handled efficiently and properly while sufficiently securing the allowable range of the installation error.

Drawings

Fig. 1 is a perspective view showing how an air conditioner 100 according to an embodiment is installed in a room 10.

Fig. 2 is a perspective view showing the air conditioner 100 in the embodiment.

Fig. 3 is a sectional view taken along the line III-III in fig. 2.

Fig. 4 is a view in section from the viewing direction along the line IV-IV in fig. 2.

Fig. 5 is a perspective view illustrating the blower 33 provided in the air conditioner 100 according to the embodiment.

Fig. 6 is a perspective view showing one of the centrifugal fans 35 provided in the blower 33 provided in the air conditioner 100 according to the embodiment.

Fig. 7 is a plan view schematically showing the blower 33 and the heat exchanger 38 provided in the air conditioner 100 in the embodiment.

Fig. 8 is a perspective view showing a state in which the air conditioner 100 in the embodiment is in the cooling operation or the blowing operation.

Fig. 9 is a side view showing a state in which the air conditioner 100 in the embodiment is in the cooling operation or the blowing operation.

Fig. 10 is a cross-sectional view corresponding to fig. 3, showing an air conditioner 100 according to the embodiment in a state in which the air conditioner is in the cooling operation or the blowing operation.

Fig. 11 is a perspective view showing a state in which the air conditioner 100 according to the embodiment performs a cooling operation or a blowing operation in the room 10.

Fig. 12 is a perspective view showing a state in which the air-conditioning apparatus 100 in the embodiment is in the heating operation.

Fig. 13 is a side view showing a state in which the air-conditioning apparatus 100 in the embodiment is in the heating operation.

Fig. 14 is a cross-sectional view corresponding to fig. 3, showing the state in which the air-conditioning apparatus 100 in the embodiment is in the heating operation.

Fig. 15 is a perspective view showing a state in which the air conditioner 100 according to the embodiment performs a heating operation in the room 10.

Fig. 16 is a perspective view showing a part of a blower provided in an air conditioner according to embodiment 6.

Fig. 17 is a plan view showing a blower provided in an air conditioner according to embodiment 7.

Fig. 18 is a front view showing a part of the blower (the drive motor 34A, the sirocco fan 35, and the casing 36(36a, 36b)) provided in the air conditioner according to embodiment 7.

Fig. 19 is a perspective view showing the front and upper surfaces of a part of the blower (the drive motor 34A, the sirocco fan 35, and the casing 36) provided in the air-conditioning apparatus according to embodiment 7.

Fig. 20 is a first perspective view showing the rear and upper sides of a part of the blower (the drive motor 34A, the sirocco fan 35, and the casing 36) provided in the air-conditioning apparatus according to embodiment 7.

Fig. 21 is a second perspective view showing the rear and top sides of a part of the blower (the drive motor 34A, the sirocco fan 35, and the casing 36) provided in the air-conditioning apparatus according to embodiment 7.

Fig. 22 is a plan view schematically showing a blower and a heat exchanger 38 provided in an air conditioner according to embodiment 7.

Fig. 23 is a perspective view showing the air conditioner 101 and the outdoor heat exchanger 200 in embodiment 8.

Fig. 24 is a front view showing an air conditioner 101 according to embodiment 9.

Fig. 25 is a sectional view taken along line XXV-XXV in fig. 23 and 24.

Fig. 26 is a side view showing an air conditioner 101 according to embodiment 8.

Fig. 27 is a perspective view showing an exploded state of an air conditioner 101 according to embodiment 8.

Fig. 28 is a perspective view showing an exploded state of the heat exchanger 38 and the drain pan unit 50 provided in the air conditioner 101 in embodiment 8.

Detailed Description

The following describes embodiments with reference to the drawings. The same components and equivalent components are denoted by the same reference numerals, and overlapping description may not be repeated.

(embodiment mode 1)

The configuration of the air conditioner 100 according to the embodiment will be described with reference to fig. 1 to 7. The operation of the air conditioner 100 will be described later with reference to fig. 8 to 15. Fig. 1 is a perspective view showing how an air conditioner 100 is installed in a room 10. Fig. 2 is a perspective view of the illustrated air conditioner 100. Fig. 3 is a view in section looking in the direction of line III-III in fig. 2, and fig. 4 is a view in section looking in the direction of line IV-IV in fig. 2.

As shown in fig. 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 is configured such that the rear surface 23 (fig. 3 and 4) of the casing 20 is fixed to the side wall 12 using metal fittings (not shown) or the like. The fixing structure is not limited to this, and the air conditioner 100 may be installed on the ceiling 11 by fixing the upper surface 21 of the casing 20 to the ceiling 11 of the room 10 using metal fittings or the like.

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

(case 20)

The housing 20 has an upper surface 21 disposed to face the ceiling 11 of the room 10, a lower surface 22 located on the floor (see the floor 13 in fig. 11) side, a rear surface 23 disposed on the side wall 12 (fig. 1 and 11) side, a front surface 24 located on the opposite side to the rear surface 23 (i.e., the front surface side of the housing 20), a side wall 25 disposed on one end side in the longitudinal direction of the housing 20, and a side wall 26 disposed on the other end side in the longitudinal direction of the housing 20.

The upper surface 21 of the housing 20 has a substantially plate-like shape, and the upper surface 21 side of the housing 20 is closed. The lower surface 22 of the casing 20 is located on the opposite side of the upper surface 21, and a suction port 22H (fig. 3 and 4) is formed in the lower surface 22. The suction port 22H extends in a substantially horizontal direction so as to extend along the longitudinal direction of the casing 20.

The rear surface 23 is provided between the rear end of the upper surface 21 and the rear end of the lower surface 22, and the rear surface 23 is substantially parallel to the vertical direction in a state where the air conditioner 100 is provided on the side wall 12. The front surface 24 is provided to rise from the front end of the lower surface 22 in a substantially L-shape. 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 (fig. 3 and 4) of the front surface 24 and the front end portion 21F of the upper surface 21.

As will be described later in detail, any one of the

shaft supporting portions

41T, 42T, 43T has a shape extending in a bar shape. Any one of the

shaft support portions

41T, 42T, and 43T extends in a direction perpendicular to the paper surface of fig. 3 and 4, and any one of both end portions 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 is fixed to the side wall 25 and the side wall 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, a space between the front end portion 24T of the front surface 24 and the front end portion 21F of the upper surface 21 is partitioned, and the front upper opening 28 and the front lower opening 29 are formed in the space (opening 27) on the front surface side of the housing 20.

(air strainer 31 and air cleaning filter 32)

As shown in fig. 3 and 4, an air screen 31 and an air cleaning filter 32 are provided inside the casing 20. Air screen 31 is disposed above suction port 22H so as to cover suction port 22H. The air cleaning filter 32 is disposed above the air screen 31. The air cleaning filter 32 is made of, for example, a HEPA filter.

(blower 33 and heat exchanger 38)

As shown in fig. 3 and 4, the blower 33 is disposed above the air cleaning filter 32, and the heat exchanger 38 is disposed in front of the blower 33. The heat exchanger 38 is not limited to the above configuration, and may be disposed in front of and above the blower 33. Fig. 5 is a perspective view illustrating the blower 33. As shown in fig. 3 to 5, the blower 33 includes a drive motor 34, a plurality of sirocco centrifugal fans 35(35a to 35d), and a rotary shaft 37.

The centrifugal fans 35(35a to 35d) are coupled to the drive motor 34 via a rotary shaft 37, and are arranged coaxially with the drive motor 34 in the horizontal direction. In the present embodiment, two 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 sirocco fans 35(35a, 35b) and the sirocco fans 35(35c, 35d) are disposed at positions that are bilaterally symmetrical about the position of the drive motor 34. In other words, the drive motor 34 is disposed at a position closer to the center of the casing 20 in the horizontal direction (longitudinal direction of the casing 20), and the centrifugal fans 35(35a to 35d) are disposed at positions further outside the drive motor 34 in the horizontal direction.

Fig. 6 is a perspective view showing one of the multiple sirocco centrifugal fans 35 provided in the blower 33. The sirocco centrifugal fan 35 includes

annular housings

35P and 35Q, a boss 35R provided upright at the center of the housing 35Q, and a plurality of blade portions 35F. The

housings

35P and 35Q are disposed 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

frames

35P, 35Q. The sirocco centrifugal fan 35 is coupled to a rotary shaft 37 (fig. 5) via a hub 35R. The sirocco centrifugal fan 35 sends the air sucked from the inner periphery side to the outer periphery side by the plurality of rotating blade portions 35F. The sirocco fan 35 sends air radially outward from the rotation center side 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 fig. 3 to 5 and 7, the blower 33 of the present embodiment further includes a plurality of casings 36(36a to 36 d). Each of the plurality of casings 36(36a to 36d) has a spiral flow path 36S (fig. 3 and 4) formed therein and is disposed so as to cover the periphery of each of the plurality of centrifugal fans 35(35a to 35 d).

Each of the plurality of housings 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 sirocco fan 35 with respect to the rotation axis (rotation axis 37) of the sirocco fan 35. The opening 36H is formed on the front side of the casing 36, and the casing 36 is disposed such that the opening 36H opens toward the heat exchanger 38.

As shown in fig. 7, each of the plurality of sirocco centrifugal fans 35(35a to 35d) is surrounded by each of the plurality of casings 36(36a to 36d) in the above-described manner, and the side wall 36W of the casing 36 is positioned between two adjacent sirocco centrifugal fans 35. Air is sucked from the through hole 36J by the rotation of the sirocco centrifugal fan 35, blown out toward the front of the casing 36 by the centrifugal force of the sirocco centrifugal fan 35, and blown to the heat exchanger 38 through the opening 36H. The air heated or cooled by the heat exchanger 38 is blown out of the fuselage through an outlet (the front upper blowout part 28H shown in fig. 8 and 9 or the front lower blowout part 29H shown in fig. 12 and 13) described later.

Referring back to fig. 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 (pipe members) and a plurality of fins (plate members) supporting the refrigerant tubes. The entire upper heat exchange portion 38A is inclined so as to extend from the rear to the front as it extends downward from above, and the entire lower heat exchange portion 38B is inclined so as to extend from the rear to the front as it extends upward from below.

The heat exchanger 38 has a substantially V-shape as a whole, and is fixed to the casing 20 or the like such that the bent portion is positioned on the foremost side of the heat exchanger 38. The heat exchanger 38 is disposed opposite the blower 33 from the front side, and can heat or cool the air from the blower 33.

(opening 27 and wind direction adjusting part 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 in the vicinity below the front end portion 21F of the upper surface 21, and the shaft support portion 43T is disposed in the vicinity directly in front of (in the vicinity below) the front end portion 24T of the front surface 24. The shaft support portion 41T is arranged at a position just intermediate between the shaft support portion 42T and the shaft support portion 43T.

By arranging the

shaft support portions

41T, 42T, 43T 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 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 airflow direction adjuster 40 is disposed 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 airflow direction adjustment unit 40 of the present embodiment includes a movable panel 41, an upper airflow direction plate 42, and a lower airflow direction plate 43. Any one of the movable panel 41, the upper wind direction plate 42, and the lower wind direction plate 43 has a plate-like shape, and extends by a length amount substantially equal to the length in the longitudinal direction (horizontal direction) of the casing 20 (fig. 1 and 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 in a curved concave shape recessed toward the inside (the rear surface 23 side) of the case 20. 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 than the height dimension of the housing 20. A support portion 41U having a plate-like shape is formed at a position between the upper end 41A and the lower end 41B of the movable panel 41 so as to protrude toward the back surface (back surface 23).

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 an 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 coupled to the shaft support portion 41T. The movable panel 41 is pivotally 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-described 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 via one or more shaft support portions 41T in a swingable manner in directions indicated by arrows AR1 and AR 2.

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 vane 42 is coupled to the shaft support portion 42T and pivotally supported via the shaft support portion 42T in a swingable manner. The lower wind direction plate 43 is also formed in a plate shape having a shorter height dimension than the height dimension of the movable panel 41. The lower wind vane 43 is coupled to the shaft support 43T and pivotally supported via the shaft support 43T in a swingable manner.

(stop state)

Fig. 2 to 4 show the state in which the air conditioner 100 is in the stopped state. When the air conditioner 100 is shifted from the operating state to the operation-stopped state (i.e., when the operation is stopped), the rear surface of the movable panel 41 and the front end 42A of the upper wind vane 42 approach each other by the rotation of each of the movable panel 41 and the upper wind vane 42. The movable panel 41 and the upper wind direction plate 42 are each disposed at a position closing the front upper opening 28 by such rotation. Similarly, by rotating each of the movable panel 41 and the lower wind direction plate 43, the rear surface of the movable panel 41 and the front end 43A of the lower wind direction plate 43 approach each other. The movable panel 41 and the lower wind direction plate 43 are each disposed at a position for closing the front lower opening 29 by such rotation.

(during cooling operation or blowing operation)

Fig. 8 and 9 are a perspective view and a side view, respectively, showing how the air conditioner 100 is in a cooling operation or a blowing operation. Fig. 10 is a cross-sectional view showing a state in which the air conditioner 100 is in the cooling operation or the blowing operation, corresponding to fig. 3.

As shown in fig. 8 to 10, when the air conditioner 100 is shifted to the cooling operation or the air blowing operation (i.e., during the cooling operation or the air blowing operation), the movable panel 41 and the lower air vane 43 are rotated downward. The rear surface of the movable panel 41 is close to the lower-side front end 25B of the side wall 25 (fig. 9), the lower-side front end (not shown) of the side wall 26 having the same configuration as that of the movable panel, and the lower wind direction plate 43, and the front lower opening 29 (fig. 10) is closed.

On the other hand, the movable panel 41 is rotated downward and the upper wind direction plate 42 is rotated upward, so that the front upper opening 28 of the opening 27 is opened. A front upper blowout part 28H is formed between the upper end 41A of the movable panel 41 and the front end 42A of the upper wind vane 42 (front upper part of the casing 20). As will be described later in detail, in this state, a below-described front lower blowout part 29H (fig. 13, 14) is closed. In this state, the plurality of sirocco centrifugal fans 35 are rotated by driving the motor 34 (fig. 5).

Air is sucked into the casing 20 through the suction port 22H, the air screen 31, and the air cleaning filter 32. The air passes through the heat exchanger 38 and the opening (front upper opening 28), and is blown out of the machine through the front upper blowing unit 28H formed on the upper side of the airflow direction adjustment unit 40 (arrow DR10 shown in fig. 9) with the airflow direction thereof adjusted by the airflow direction adjustment unit 40 (here, the movable panel 41 and the upper airflow direction plate 42).

As shown in fig. 11, the air blown out from the front upper blowout part 28H travels along the ceiling 11 and then descends along the side walls 14 to 16 facing the air conditioner 100. The air further proceeds in such a manner as to return to the air conditioner 100 side along the floor 13. The air rises along the side wall 12 toward the suction port 22H provided in the lower surface 22 of the air conditioner 100. In the cooling operation, the entire room 10 is cooled by this flow of air. In the air conditioner 100, such a circulating air flow can be formed in the room 10, and an effective cooling effect or blowing effect can be obtained.

(during heating operation)

Fig. 12 and 13 are a perspective view and a side view, respectively, showing how the air-conditioning apparatus 100 is in a heating operation state. Fig. 14 is a cross-sectional view showing a state in which the air-conditioning apparatus 100 is in the heating operation corresponding to fig. 3.

As shown in fig. 12 to 14, when the air-conditioning apparatus 100 is shifted to the heating operation state (i.e., during the heating operation), the movable panel 41 and the upper wind direction plate 42 are rotated upward. The rear surface of the movable panel 41 is close to the upper front end 25A (fig. 13) of the side wall 25, the upper front end (not shown) of the side wall 26 having the same configuration, and the upper wind direction plate 42, and the front upper opening 28 (fig. 14) is closed.

On the other hand, the movable panel 41 is rotated upward and the lower wind direction plate 43 is rotated downward, so that the front lower opening 29 of the openings 27 is opened. A front downward blowout part 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 (forward downward of the casing 20). In this state, the front upper blowout part 28H (fig. 9 and 10) is closed. In this state, the plurality of sirocco centrifugal fans 35 are rotated by driving the motor 34 (fig. 5).

Air is sucked into the casing 20 through the suction port 22H, the air screen 31, and the air cleaning filter 32. The air is blown out of the air blower by the front lower blowing unit 29H formed on the lower side of the airflow direction adjustment unit 40 while the airflow direction is adjusted by the airflow direction adjustment unit 40 (here, the movable panel 41 and the lower airflow direction plate 43) through the heat exchanger 38 and the opening (front lower opening 29) (arrow DR20 shown in fig. 13).

As shown in fig. 15, the air blown out from the front lower blowout part 29H moves down along the side wall 12 and then moves forward along the floor 13. The air further moves up along the side walls 14-16. By this flow of air, the entire room 10 is warmed. In the air conditioner 100, such an air flow can be formed in the room 10, and an effective heating effect can be obtained.

(action and Effect)

According to air conditioner 100, suction port 22H is formed in lower surface 22 of casing 20, and air sucked from suction port 22H passes through air screen 31 and air cleaning filter 32. Therefore, air conditioning can be performed with less energy consumption while air purification is performed all the time. The blower 33 blows air by a plurality of sirocco centrifugal fans 35 arranged in a horizontal direction. Therefore, by reducing the depth dimension, it is possible to achieve a smaller size than in the conventional art, reduce the feeling of pressure, reduce the restrictions on the indoor environment, improve the appearance, and the like.

In the air conditioner 100 of the present embodiment, the movable panel 41 is pivotally supported by the shaft support portion 41T at a substantially central position in the horizontal direction and the height direction (vertical direction) of the housing 20. According to the above configuration, the movable panel 41 can form the air outlet that opens in both the upper and lower directions in front of the casing 20, and for example, even if a complicated structure such as switching between the upper and lower shafts or using a lock mechanism is not required, the air outlet that opens in both the upper and lower directions can be opened and closed with a simple configuration.

(embodiment mode 2)

Referring to fig. 3, in a preferred embodiment, when the diameter of the sirocco fan 35 is D (mm) and the height of the housing 20 is h (mm), a relationship of 0.9 × h ≦ 2 × D ≦ 1.1 × h is preferably satisfied. As more preferable embodiments, it is preferable that: when the depth of the housing 20 is L (mm), a relationship of 0.9 × L ≦ h +1/2 × D ≦ 1.1 × L is satisfied.

According to these configurations, it is possible to realize air blowing that can overcome the pressure loss generated in the air cleaning filter 32 while suppressing an increase in the depth dimension of the casing 20, and it is possible to improve energy saving and reduce the feeling of pressure, and to reduce restrictions on the indoor environment, the appearance, and the like.

(embodiment mode 3)

As shown in fig. 4, a is a 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 portion 42T) when the operation is stopped. B represents 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 portion 43T) when the operation is stopped.

As shown in fig. 10, the shortest distance from the rear surface of the movable panel 41 to the upper end of the front upper opening 28 (here, the position of the shaft support portion 42T) during the cooling operation is set to 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 the values are defined as described above, the following relationships of formula (1) and formula (2) are preferably established.

0.9 × (a + b) ≦ L1 ≦ 1.1 × (a + b) … equation (1)

0.9 × (a + b) ≦ L2 ≦ 1.1 × (a + b) … equation (2)

With the above configuration, the air outlets of the upper and lower two-open type can be formed in the front upper and lower portions of the casing 20 with a simpler configuration, the air flow control in the case where the air conditioner 100 is used for air conditioning can be optimized, and the opening and closing of the air outlets of the upper and lower two-open type can be realized with a simple configuration in terms of structure.

(embodiment mode 4)

Referring to fig. 10, as a suitable embodiment, it is preferable that: the upper wind direction plate 42 is pivotally supported at the upper end of the front upper opening 28; during the cooling operation, the upper wind vane 42 is rotated upward about the pivotally supported portion (the shaft supporting portion 42T) to open the front upper opening 28, and a straight line connecting the shaft supporting portion 42T and the front end 42A of the upper wind vane 42 may be disposed at an angle θ 1 smaller than 20 ° downward from the front with respect to the horizontal direction AP. According to the above configuration, a more appropriate airflow can be sent from the front upper blowout part 28H during cooling. It is also possible to suppress such a situation that dew is generated on the ceiling, for example, even further.

(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 lower end portion of the front lower opening 29; during the heating operation, the lower air vane 43 is rotated downward about the pivotally supported portion (the shaft supporting portion 43T) to open the front lower opening 29, and a straight line connecting the shaft supporting portion 43T and the front end 43A of the lower air vane 43 may be disposed at an angle θ 2 smaller than 45 ° downward from the front with respect to the vertical direction BP. According to the above configuration, a more appropriate airflow can be sent from the front lower blowout part 29H during heating. It is possible to suppress such a situation that it is difficult for the air to reach the floor due to buoyancy heating, for example, and to obtain an effective heating effect.

Further, the lower wind direction plate 43 may be configured to: during the heating operation, the lower air vane 43 suppresses a short circuit phenomenon in which air blown out through the front lower opening 29 is directly sucked into the suction port 22H. It is possible to send a more appropriate airflow during heating, and also possible to suppress an unnecessary increase in the temperature of the casing 20, thereby further improving energy saving performance.

(embodiment mode 6)

Fig. 16 is a perspective view showing a blower provided in an air conditioner according to embodiment 6, which corresponds to fig. 5 in the above-described embodiment. In the embodiment (fig. 5), four sirocco centrifugal fans 35(35a to 35d) are driven by one drive motor 34.

In contrast, in the present embodiment (fig. 16), two sirocco centrifugal fans 35(35a, 35b) are connected to one drive motor 34A via a rotary shaft 37A, and are arranged coaxially with the drive motor 34A in the horizontal direction. The two sirocco centrifugal fans 35(35a, 35b) are driven by a drive motor 34A.

Similarly, the two sirocco fans 35(35c and 35d) are connected to one drive motor 34B via a rotary shaft 37B, and are arranged coaxially with the drive motor 34B in the horizontal direction. The two sirocco fans 35(35c, 35d) are driven by a single drive motor 34B.

The centrifugal fans 35(35a to 35d) and the

drive motors

34A and 34B are arranged coaxially in a horizontal direction. The

drive motors

34A and 34B are disposed near the center of the casing 20 in the horizontal direction (longitudinal direction of the casing 20), and are adjacent to each other. The sirocco fans 35(35a, 35B) are disposed at positions further outside the drive motor 34A in the horizontal direction, and the sirocco fans 35(35c, 35d) are disposed at positions further outside the drive motor 34B in the horizontal direction.

In the case of the above configuration, the centrifugal fans 35(35a, 35B) driven by the drive motor 34A and the centrifugal fans 35(35c, 35d) driven by the drive motor 34B can easily blow air having different rotation speeds, air volumes, blowing wind directions, or different temperatures or air velocities to the left and right, and can provide a more finely conditioned air to the user.

(embodiment 7)

Fig. 17 is a plan view showing a blower provided in an air conditioner according to embodiment 7. Fig. 18 is a front view showing a part of the blower (the drive motor 34A, the sirocco fan 35, and the casing 36(36a, 36b)) provided in the air conditioner according to embodiment 7. The present embodiment is different from the other embodiments described above in the configuration of the casing 36 provided in the blower.

The present embodiment is common to the above-described embodiments in that (see fig. 17) each of the plurality of casings 36(36a to 36d) has a spiral flow path 36S (fig. 3 and 4) formed inside thereof and is disposed so as to cover the periphery of each of the plurality of centrifugal fans 35(35a to 35 d). The present embodiment is also common to the above-described embodiments in that each of the plurality of cases 36(36a to 36d) is disposed so as to open toward the heat exchanger 38 side (see fig. 22).

As shown in fig. 18 to 22, in the present embodiment, on the heat exchanger 38 side of each of the casings 36(36a to 36d), a frame portion 36F and a plurality of guide vanes 36T are provided, a through hole 36Y (fig. 20) is provided on one side in the axial direction of the sirocco fan 35, and a through hole 36J (fig. 21) is provided on the other side in the axial direction of the sirocco fan 35. The through hole 36Y and the through hole 36J are located on opposite sides of the sirocco fan 35 in the direction of the rotation axis of the sirocco 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 surface side of the housing 36 (fig. 18 and 19). The inner peripheral surface of the frame portion 36F is formed so that the flow path cross-sectional area of the opening 36H formed on the downstream side (front surface side) of the sirocco fan 35 gradually increases from the upstream side to the downstream side.

The guide vanes 36T are arranged at intervals inside the frame portion 36F so as to extend in a direction perpendicular to the rotation axis (rotation axes 37A and 37B) of the sirocco fan 35. In the present embodiment, 5 guide vanes 36T in total are disposed inside the frame portion 36F. The guide vane 36T located at the center of the 5 vanes has a flat plate-like shape.

The 2 guide vanes 36T positioned on both outer sides of the flat plate-shaped guide vane 36T are formed to curve outward from the upstream side toward the downstream side. These 2-piece deflectors 36T located on both outer sides are also formed so as to curve outward from the upstream side toward the downstream side. The guide vanes 36T disposed on the outer side are formed to be curved more steeply toward the outer side than the guide vanes 36T disposed on the inner side.

As shown in fig. 22, the plurality of vanes 36T configured as described above divide the air flow path formed between each of the plurality of sirocco fans 35(35a to 35d) and the heat exchanger 38 in a direction perpendicular to the rotation shafts (

rotation shafts

37A and 37B) of the sirocco fan 35. According to the above configuration, the air can be more uniformly blown in the longitudinal direction to the heat exchanger 38, and the air conditioner with the air cleaning filter 32 mounted thereon can be provided with higher energy saving performance.

(embodiment mode 8)

An air conditioner 101 according to embodiment 8 will be described with reference to fig. 23 to 28. Fig. 23 is a perspective view showing the air conditioner 101 and the heat exchanger 200. Fig. 24 is a front view showing the air conditioner 101. For convenience of explanation, the airflow direction adjusting unit 40 (see fig. 1, 2, and the like) is not shown in fig. 24 (the same applies to fig. 25 to 27).

Fig. 25 is a sectional view taken along line XXV-XXV in fig. 23 and 24. Fig. 26 is a side view showing the air conditioner 101. Fig. 27 is a perspective view showing an exploded state of the air conditioner 101. Fig. 28 is a perspective view showing an exploded state of the heat exchanger 38 and the drain pan unit 50 provided in the air conditioner 101. Embodiment 8 differs from embodiments 1 to 7 described above in the following point.

(case 20)

In embodiment 8, a casing 20 of an air conditioner 101 has an upper surface 21 disposed to face a ceiling (see ceiling 11 in fig. 11), a lower surface 22 located on a floor (see floor surface 13 in fig. 11), a rear surface 23 disposed on a side wall (see side wall 12 in fig. 11), a front surface 24 located on the opposite side of rear surface 23, a right surface 26S located on the right side from rear surface 23 to front surface 24, and a left surface 25S located on the left side from rear surface 23 to front surface 24. The right surface 26S is formed by the outer surface of the side wall 26, and the left surface 25S is formed by the outer surface of the side wall 25.

In embodiment 8, W ≧ 4 × h is satisfied when the height of the housing 20 is h (mm) (fig. 25) and the width of the housing 20 is W (mm) (see fig. 24). The height h of the housing 20 is a vertical distance between an uppermost portion in the vertical direction among portions constituting the upper surface 21 of the housing 20 and a lowermost portion in the vertical direction among portions constituting the lower surface 22 of the housing 20. Further, the width W of the housing 20 is a horizontal distance between a portion located on the leftmost side in the horizontal direction among portions constituting the left surface 25S of the housing 20 and a portion located on the rightmost side in the horizontal direction among portions constituting the right surface 26S of the housing 20.

In each of embodiments 1 to 7, the upper surface 21 side of the casing 20 is closed, and the suction port 22H (fig. 3 and 4) is formed in the lower surface 22 of the casing 20. On the other hand, in embodiment 9, as shown in fig. 23 and 25, the upper surface 21 side of the casing 20 is not closed, and the suction port 21H is formed in the upper surface 21. The suction port 21H is provided in a portion of the upper surface 21 near the rear surface 23. A suction port 22H (fig. 25) is also formed in the lower surface 22 of the housing 20. Further, 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.

In addition to air screen 31 and air cleaning filter 32, air screen 31A and air cleaning filter 32A are provided inside casing 20. Air cleaner filter 31A is disposed below intake port 21H provided on upper surface 21 side so as to close intake port 21H from the inside of casing 20, and air cleaner filter 32A is disposed so as to cover air cleaner filter 31A from the lower side. The air cleaning filter 32A is also constituted by a HEPA screen, for example.

In the air conditioner 101 of the present embodiment, air is sucked into the casing 20 through the suction port 22H (fig. 25), the air screen 31 (fig. 25), and the air cleaning filter 32 (fig. 25), and air is sucked into the casing 20 through the suction port 21H, the air screen 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 is blown out of the machine through the front upper blowing unit 28H (fig. 10) or the front lower blowing unit 29H (fig. 14) with the wind direction thereof adjusted by the wind direction adjusting unit 40 (fig. 23). According to the air conditioner 101 of embodiment 8, the air volume can be increased as compared with the air conditioners of embodiments 1 to 7 described above. The technical idea of providing the suction port 21H on the upper surface 21 side without closing the upper surface 21 side may be implemented in combination with the idea described in each of embodiments 1 to 7.

(Heat exchanger 38)

As shown in fig. 24 and 27, the heat exchanger 38 of the present embodiment includes a heat exchanger 38M (left heat exchanger) and a heat exchanger 38N (right heat exchanger). The heat exchanger 38M is disposed at a position on the left surface 25S side in the casing 20, and the heat exchanger 38N is disposed at a position on the right surface 26S side in the casing 20. The

heat exchangers

38M, 38N are arranged in the left-right direction and may be disposed in front of or above the blower 33.

(Heat exchanger 38M)

The heat exchanger 38M includes a plurality of fins 39F (see also fig. 25) and a refrigerant pipe 39S (pipe material). Each of the plurality of fins 39F has a flat plate shape and is arranged in a direction parallel to the rotation center of the sirocco centrifugal fan 35 so as to be in a parallel positional relationship with each other. The refrigerant pipe 39S is attached to the plurality of fins 39F. The heat exchanger 38M (left heat exchanger) includes a first refrigerant pipe piping section 39MS connected to the exterior heat exchanger 200 (fig. 23) at a position on the right side of the left heat exchanger 38M (left heat exchanger). The first refrigerant pipe piping portion 39MS communicates the refrigerant pipe 39S of the heat exchanger 38M with the exterior heat exchanger 200.

(Heat exchanger 38N)

The heat exchanger 38N also includes a plurality of fins 39F (see also fig. 25) and a refrigerant pipe 39S (pipe material). Each of the plurality of fins 39F has a flat plate shape, and is arranged in a direction parallel to the rotation center of the sirocco fan 35 so as to be parallel to each other. The refrigerant pipe 39S is attached to the plurality of fins 39F. The heat exchanger 38N (right heat exchanger) has a second refrigerant pipe piping portion 39NS connected to the exterior heat exchanger 200 (fig. 23) at a position on the left side of the right heat exchanger 38N (right heat exchanger). The second refrigerant pipe piping portion 39NS communicates the refrigerant pipe 39S of the heat exchanger 38N with the exterior heat exchanger 200.

In the present embodiment, the first refrigerant pipe piping portion 39MS and the second refrigerant pipe piping portion 39NS are bundled with each other at a position near the center in the left-right direction of the casing 20, and extend from the position near the center as a pipe bundle 39T toward the rear surface 23 (see fig. 25). The first refrigerant pipe piping portion 39MS and the second refrigerant pipe piping portion 39NS may be joined at a position near the center in the left-right direction of the housing 20, and may extend from the position near the center toward the back surface 23 in a joined state.

(Drain pan Unit 50)

As shown in fig. 25, 27, and 28, a drain pan unit 50 that receives drain water dripping from the heat exchanger 38 is provided below the heat exchanger 38 (

heat exchangers

38M and 38N). As shown in fig. 28, the drain pan unit 50 of the present embodiment includes a left receiving portion 51, a right receiving portion 52, a center receiving portion 53, and a drain pipe portion 55.

The left receiving portion 51, the center receiving portion 53, and the right receiving portion 52 are arranged in the stated order in the direction in which the

heat exchangers

38M, 38N are arranged (here, in the same direction as the extending direction of the case 20). Any one of the inner surface 51S of the left receiving portion 51, the inner surface 52S of the right receiving portion 52, and the inner surface 53S of the center receiving portion 53 has a concave shape opening toward the upper side, and the

inner surfaces

51S, 52S, and 53S constitute a groove portion 54. The groove portions 54 provided in the drain pan unit 50 have a shape extending along the longitudinal direction of the

heat exchangers

38M and 38N (here, the same direction as the extending direction of the casing 20), and can receive drain water from the

heat exchangers

38M and 38N.

The drain pipe portion 55 has a first end portion 55A and a second end portion 55B. The first end portion 55A is connected to the groove portion 54, and the second end portion 55B communicates with the outside. The drain pipe portion 55 discharges the water received in the groove portion 54 to the outside of the room through the first end portion 55A and the second end portion 55B.

The

inner surfaces

51S, 52S, 53S of the groove portion 54 are arranged to face the

heat exchangers

38M, 38N, and are surface portions that receive drain water from the

heat exchangers

38M, 38N. The surface portions (

inner surfaces

51S, 52S, 53S) have a substantially V-shape in which the height in the vertical direction is highest at the positions of both ends 51T, 52T in the horizontal direction of the housing 20 and the height in the vertical direction is lowest at the position closer to the center in the horizontal direction of the housing 20.

A first end portion 55A of the drain pipe portion 55 is connected to the recessed portion 54 at a position near the center in the left-right direction of the housing 20 (here, at a position where the center receiving portion 53 is provided). The drain pipe portion 55 extends from the first end portion 55A toward the rear surface 23 side at a position closer to the center in the left-right direction of the housing 20. In the present embodiment, the drain pipe portion 55, the first refrigerant pipe portion MS, and the second refrigerant pipe portion NS are bundled at the position closer to the center in the left-right direction of the housing 20 and extend toward the rear surface 23 side as a suitable configuration.

According to the air conditioner 101 including the drain pan unit 50 as described above, the width W of the housing 20 is 4 times or more the height h of the housing 20, but the distance in the horizontal direction of the left receiving portion 51 with respect to the height difference in the vertical direction of both ends of the left receiving portion 51 can be made half of the total length of the housing 20. Similarly, the distance in the horizontal direction of the right receiving portion 52 with respect to the vertical height difference at both ends of the right receiving portion 52 can be set to half the total length of the housing 20 in the right receiving portion 52. That is, the inner surface 51S of the left receiving portion 51 and the inner surface 52S of the right receiving portion 52 constituting the groove portion 54 can be sufficiently inclined.

This can sufficiently ensure an allowable range of the installation error of the air conditioner 101. For example, even when the air conditioner (drain pan unit 50) is installed in a slightly inclined state when the air conditioner 101 is installed, the drain water received by the recessed portion 54 of the drain pan unit 50 can be quickly discharged to the outside of the room through the drain pipe portion 55 without stagnation.

In the air conditioner 101 of the present embodiment, the drain pipe portion 55 extends from the first end portion 55A toward the rear side at a position closer to the center in the left-right direction of the casing 20. Even when the air conditioner 101 is installed such that the left side (left surface 25S) of the casing 20 is adjacent to the wall surface of the room, the pipe may extend only from the center position on the back surface side of the air conditioner 101 toward the wall surface of the room. Similarly, even when the air conditioner 101 is disposed such that the right side (right surface 26S) of the casing 20 is adjacent to the wall surface of the room, the pipe may extend only from the center position on the back surface side of the air conditioner 101 toward the wall surface of the room. Therefore, even when the width W of the air conditioner 101 is larger than 1m, it is possible to suppress an increase in the cost of products and installation, and also suppress a decrease in the efficiency (for example, heat exchange efficiency) of the air conditioner 101.

As described above, in the present embodiment, the first refrigerant pipe piping portion 39MS and the second refrigerant pipe piping portion 39NS are bundled with each other at the position near the center in the left-right direction of the casing 20, and extend from the position near the center as the pipe bundle 39T toward the rear surface 23 (see fig. 25). With this configuration, the refrigerant pipes 39S of the

heat exchangers

38M and 38N can be gathered at the center, and the first refrigerant pipe piping portion 39MS and the second refrigerant pipe piping portion 39NS can be easily disposed, and the efficiency of the space or the working place can be improved. The first refrigerant pipe piping portion 39MS and the second refrigerant pipe piping portion 39NS may be joined at a position closer to the center in the left-right direction of the housing 20, and extend from the position closer to the center toward the back surface 23 in the joined state. The same effect can be obtained in this case.

As described above, in the present embodiment, the drain pipe portion 55, the first refrigerant pipe portion MS, and the second refrigerant pipe portion NS are bundled at the position closer to the center in the left-right direction of the housing 20 and extend toward the rear surface 23 side. With this configuration, the drain pipe piping portion 55, the first refrigerant pipe piping portion 39MS, and the second refrigerant pipe piping portion 39NS can be easily disposed, and the efficiency of the space or the working place can be further improved.

(modification of embodiment 8)

The structure described in embodiment 8 above may be implemented in combination with the structures described in embodiments 1 to 7, or may be implemented independently of the structures described in embodiments 1 to 7. In the case of adopting the configuration described in embodiment 8 above, for example, it is not necessary to provide the wind direction adjusting unit having the configuration described in embodiments 1 to 7. The suction port 22H (see fig. 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 and 26. The air outlet is not limited to the configuration shown in the front upper air outlet portion 28H (fig. 9) and the front lower air outlet portion 29H (fig. 13), and may be formed on the lower surface 22 side or the upper surface 21 and/or the

side walls

25 and 26 side.

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

The air screen 31 may not be disposed above the suction port 22H. If air screen 31 is disposed so as to cover intake port 22H from the inside of casing 20, air screen 31 may be disposed, for example, below or on the side of intake port 22H. Similarly, the air cleaning filter 32 need not be disposed above the air screen 31. If air cleaning filter 32 is disposed so as to cover air screen 31 from the inside of case 20, air cleaning filter 32 may be disposed below or on the side of air screen 31. The blower 33 is not limited to being disposed above the air cleaning filter 32, and may be disposed below or on the side of the air cleaning filter 32, if disposed inside the casing 20.

Even in the air conditioner having the configuration of the modification example of embodiment 8, air conditioning can be performed with less energy consumption while air purification is performed all the time, and downsizing can be achieved compared to the conventional one.

While the embodiments have been described above, the above disclosure is in all aspects illustrative and not restrictive. The technical scope of the present invention is defined by the scope of the claims, and the meaning equivalent to the scope of the claims and all modifications within the scope are intended to be included.

Description of the reference numerals

10 Room

11 ceiling

12. 14, 16, 25, 26, 36W side wall

13 floor

20 casing

21 upper surface of the container

21C front cover

21F, 24T tip

21H, 22H suction inlet

22 lower surface

23 back side of

24 front surface

25A, 25B front end

Left surface of 25S

26S Right surface

27. 36H opening

28 front upper opening

28H front upper blowing part

29 front lower opening

29H front lower blow-out part

31. 31A air filter screen

32. 32A air purification filter

33 blower

34. 34A, 34B drive motor

35 multi-blade centrifugal fan

35F blade part

35P, 35Q frame

35R axle hub

36 outer cover

36F frame part

36J, 36Y through hole

36S flow path

36T flow deflector

37. 37A, 37B rotation axis

38. 38M, 38N heat exchanger

38A upper heat exchange portion

38B lower heat exchange portion

39F radiating fin

39MS, MS first refrigerant pipe piping part

39NS, NS second refrigerant pipe piping part

39S refrigerant pipe

39T pipe bundle

40 wind direction adjusting part

41 Movable Panel

41A upper end

41B lower end

41T, 42T, 43T axle supporting part

41U support part

42 upper wind direction board

42A, 43A front end

43 lower wind direction board

50 drain pan unit

51 left side receiving part

51S, 52S, 53S inner surface

Two ends of 51T and 52T

52 right side receiving part

53 center socket

54 groove part

55 drainage pipe part

55A first end portion

55B second end

100. 101 air conditioner

200 outdoor heat exchanger

Width W

h height

Claims

1. An air conditioner installed on an upper portion of a side wall or a ceiling of a room, comprising:

a housing having an upper surface disposed so as to face the ceiling, a lower surface located on a floor side, a rear surface disposed on the side wall side, a front surface located on a side opposite to the rear surface, a right surface located on a right side from the rear surface toward the front surface, and a left surface located on a left side from the rear surface toward the front surface;

a blower disposed inside the casing;

a heat exchanger disposed in front of or above the blower and connected to an outdoor heat exchanger; and

a drain pan unit provided below the heat exchanger and receiving drain water dripping from the heat exchanger;

when the height of the housing is h (mm) and the width of the housing is W (mm), W ≧ 4 × h is satisfied,

the drain pan unit includes:

a groove portion having a shape extending in a longitudinal direction of the heat exchanger and receiving drain water from the heat exchanger; and

a drain pipe portion having a first end portion connected to the recessed portion and a second end portion communicating with the outside of the room to discharge the drain received in the recessed portion through the first end portion and the second end portion,

a surface portion of the recessed groove portion, which is disposed so as to face the heat exchanger and receives the drain water from the heat exchanger, has a substantially V-shape in which a height in a vertical direction at positions at both ends of the casing in a horizontal direction is highest and a height in a vertical direction at a position near a center of the casing in the horizontal direction is lowest,

the first end portion of the drain pipe portion is connected to the groove portion at the position near the center in the left-right direction of the housing,

the drain pipe portion extends from the first end portion toward the rear surface side at the position closer to the center in the left-right direction of the housing.

2. The air conditioner according to claim 1, wherein the heat exchanger includes:

a left side heat exchanger disposed at a position on the left surface side inside the casing; and

a right-side heat exchanger disposed at a position on the right surface side inside the housing,

the left heat exchanger and the right heat exchanger are arranged in a left-right direction,

the left heat exchanger has a first refrigerant pipe piping connected to the exterior heat exchanger at a position on the right side of the left heat exchanger,

the right heat exchanger has a second refrigerant pipe piping part connected to the exterior heat exchanger at a position on the left side of the right heat exchanger,

the first refrigerant pipe piping portion and the second refrigerant pipe piping portion converge or are bundled with each other at the position near the center in the left-right direction of the housing, and extend toward the back surface side.

3. The air conditioner according to claim 2, wherein the drain pipe portion, the first refrigerant pipe portion, and the second refrigerant pipe portion are bundled at the position closer to the center in the left-right direction of the casing and extend toward the rear surface side.