CN217715155U

CN217715155U - Vertical air conditioner

Info

Publication number: CN217715155U
Application number: CN202222001383.7U
Authority: CN
Inventors: 逯成林; 张江; 孙合庆
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-01
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a vertical air conditioner, vertical air conditioner includes: the air conditioner comprises a shell, a first air outlet, a second air outlet and a third air outlet, wherein the shell is provided with the first air outlet, the second air outlet and the third air outlet which are sequentially arranged at intervals in the left-right direction; the fan set is arranged in the shell and comprises a first axial flow fan and a second axial flow fan, and the first axial flow fan and the second axial flow fan are communicated with the first air outlet, the second air outlet and the third air outlet; the air outlet plate is arranged at least one of the first air outlet, the second air outlet and the third air outlet, and a plurality of air outlet holes arranged at intervals are formed in the air outlet plate. From this, the interval sets up three air outlet on the casing to set up two axial fan and put at the central point of three air outlet and correspond the air supply, thereby make this vertical air conditioner not only can guarantee the air output, can also provide different air-out forms, can satisfy different crowds' user demand.

Description

Vertical air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioning technique and specifically relates to a vertical air conditioner is related to.

Background

The types of household air conditioners are various, and the common types of household air conditioners include a wall-mounted air conditioner, a vertical cabinet air conditioner, a window type air conditioner and a ceiling type air conditioner, wherein the vertical cabinet air conditioner can adjust the air temperature in a large-range space, the air supply distance is long, in addition, wide-angle air supply is adopted, a larger area can be considered, and the vertical cabinet air conditioner is mainly used in a large living room or a commercial place in our daily life.

Although the existing vertical air conditioner has large air outlet quantity and long air outlet distance, the air outlet form is single, and the use requirements of more people cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a vertical air conditioner, this vertical air conditioner can satisfy different crowds' user demand.

According to the utility model discloses floor air conditioner, include: the air conditioner comprises a machine shell, a first air outlet, a second air outlet and a third air outlet, wherein the machine shell is provided with the first air outlet, the second air outlet and the third air outlet which are sequentially arranged at intervals in the left-right direction; the fan set is arranged in the shell and comprises a first axial fan and a second axial fan, and the first axial fan and the second axial fan are communicated with the first air outlet, the second air outlet and the third air outlet; the air outlet plate is arranged at least one of the first air outlet, the second air outlet and the third air outlet, and a plurality of air outlet holes arranged at intervals are formed in the air outlet plate.

From this, set up three air outlet at the interval on the casing to set up two axial fan and put the correspondence air supply at the central point of three air outlet, thereby make this vertical air conditioner not only can guarantee the air output, can also provide different air-out forms, can satisfy different crowds' user demand.

According to the utility model discloses a some embodiments, go out the aerofoil set up in first air outlet with third air outlet department.

According to the utility model discloses a some embodiments, first air outlet with the air-out area of third air outlet is the same, the air-out area of second air outlet is greater than the air-out area of first air outlet with the air-out area of third air outlet.

According to some embodiments of the invention, the first air outlet and the third air outlet are symmetrically arranged with respect to the second air outlet.

According to some embodiments of the present invention, the first air outlet, the second air outlet and the third air outlet set up in the front side of casing, the first axial fan with the second axial fan is in the projection of casing front side about the vertical centerline symmetry setting of second air outlet.

According to some embodiments of the present invention, the floor air conditioner further comprises: the first air deflector is arranged at the first air outlet and used for opening and closing the first air outlet, and the first air deflector is arranged on the inner side of the air outlet plate; the floor air conditioner further includes: the second air deflector is arranged at the second air outlet and used for opening and closing the second air outlet; the floor type air conditioner further comprises: and the third air deflector is arranged at the third air outlet so as to be used for opening and closing the third air outlet, and is arranged on the inner side of the air outlet plate.

According to the utility model discloses a some embodiments, the casing is provided with out the fan-frame, it is cylindric to go out the fan-frame, go out be provided with the relative air intake that sets up on the fan-frame with the second air outlet, air intake one side with first axial fan with the second axial fan is linked together, the opposite side with the second air outlet is linked together, it is relative to go out the fan-frame the casing is rotatable, in order to be used for closing the second air outlet.

According to the utility model discloses a some embodiments, it is a plurality of the exhaust vent is in with the even interval setting of the mode of arranging into a row on the air-out board.

According to the utility model discloses a some embodiments, vertical air conditioner still includes: the indoor heat exchanger is arranged in the shell and is positioned behind the fan set.

According to some embodiments of the utility model, indoor heat exchanger formula heat exchanger as an organic whole, the air intake with indoor heat exchanger sets up relatively in the front and back direction, indoor heat exchanger is U-shaped, V-arrangement or arc.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a partial schematic view of a floor air conditioner according to an embodiment of the present invention;

fig. 2 is a partial schematic view of a floor air conditioner according to an embodiment of the present invention;

fig. 3 is a partial schematic view of a floor air conditioner according to an embodiment of the present invention.

Reference numerals are as follows:

100. a floor air conditioner;

10. a housing; 11. a first air outlet; 12. a second air outlet; 13. a third air outlet;

20. an air outlet frame; 21. an air inlet;

30. a fan set; 31. a first axial fan; 32. a second axial fan;

40. an indoor heat exchanger; 50. an air outlet plate; 51. an air outlet;

60. a first air deflector; 70. a second air deflector; 80. and a third air deflector.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

As shown in fig. 1 to fig. 3, the floor air conditioner 100 according to the embodiment of the present invention may mainly include: the vertical air conditioner comprises a machine shell 10, a fan set 30 and an air outlet plate 50, wherein the machine shell 10 is provided with a first air outlet 11, a second air outlet 12 and a third air outlet 13 which are sequentially arranged in the left-right direction at intervals, so that three air outlets are formed in the vertical air conditioner 100, and the air supply efficiency of the vertical air conditioner 100 can be improved.

Further, a fan set 30 is disposed in the casing 10, and the fan set 30 includes a first axial fan 31 and a second axial fan 32. Specifically, the fan set 30 includes a first axial fan 31 and a second axial fan 32, and the arrangement of the two axial fans can provide a larger air volume for the floor air conditioner 100 on the premise of not increasing the structural size of the floor air conditioner 100, so as to ensure that the air volume of the floor air conditioner 100 meets the use requirements of different users. In addition, the first axial fan 31 and the second axial fan 32 are communicated with the first outlet 11, the second outlet 12 and the third outlet 13, so that the air blown by the first axial fan 31 and the second axial fan 32 can directly flow to the first outlet 11, the second outlet 12 and the third outlet 13, the loss of the air in the flowing process can be reduced, and the air outlet efficiency of the vertical air conditioner 100 can be improved.

In addition, the fan set 30 includes a first axial fan 31 and a second axial fan 32. Axial fan during operation, blade among its structure promotes the air and flows towards the same direction with the axle, can be under the unchangeable condition basically of the aerodynamic performance who keeps the air, strengthens the radial migration ability of air, can also increase the mainstream region of air current the embodiment of the utility model provides an, so set up, can make the wind in the casing 10 under the prerequisite that keeps original wind speed as far as possible, remove to first air outlet 11, second air outlet 12 and third air outlet 13 in by the casing 10 to wind speed can reduce when can preventing that wind from blowing off from first air outlet 11, second air outlet 12 and third air outlet 13.

Further, the vertical air conditioner 100 further includes an air outlet plate 50, the air outlet plate 50 is disposed at least one of the first air outlet 11, the second air outlet 12 and the third air outlet 13, and a plurality of air outlet holes 51 disposed at intervals are formed on the air outlet plate 50. Specifically, the air-out plate 50 is arranged at least one of the first air outlet 11, the second air outlet 12 and the third air outlet 13, and a plurality of air-out holes 51 are formed in the air-out plate 50 at intervals, so that the structure is compact, the air can directly flow to the air-out plate 50 after coming out from at least one of the first air outlet 11, the second air outlet 12 and the third air outlet 13, the blowing form of the air after being blown out from at least one of the first air outlet 11, the second air outlet 12 and the third air outlet 13 is changed, and the use requirements of different people groups can be met.

From this, set up three air outlet at the interval on shell 10 to set up two axial fan and correspond the air supply in the central point of three air outlet, thereby make this vertical air conditioner 100 not only can guarantee the air output, can also provide different air-out forms, can satisfy different crowds' user demand.

As shown in fig. 2, the air outlet plate 50 is disposed at the first air outlet 11 and the third air outlet 13. Specifically, the air-out plate 50 is disposed at the first air outlet 11 and the third air outlet 13, that is, the air-out plate 50 is disposed at two sides of the housing 10, and the air can directly flow to the air-out plate 50 after coming out from the first air outlet 11 and the third air outlet 13, so as to change the blowing form after the air is blown out from the first air outlet 11 and the third air outlet 13, so that the air blown out from the first air outlet 11 and the third air outlet 13 is softer, and therefore the use requirements of different people can be met. In addition, so set up, air-out board 50 can also play the effect of sheltering from the protection to first air outlet 11 and third air outlet 13, can prevent that external foreign matter from getting into vertical air conditioner 100's inside through first air outlet 11 or third air outlet 13, can promote vertical air conditioner 100's structural reliability like this.

Referring to fig. 1 to fig. 3, the air outlet areas of the first outlet 11 and the third outlet 13 are the same, and the air outlet area of the second outlet 12 is larger than the air outlet area of the first outlet 11 and the air outlet area of the third outlet 13. Specifically, the first air outlet 11 and the third air outlet 13 are disposed on two sides of the second air outlet 12, and the air outlet areas of the first air outlet 11 and the third air outlet 13 are the same, so that the air outlet speeds of the first air outlet 11 and the third air outlet 13 can be ensured to be consistent, and further, the air outlet stability and reliability of the first air outlet 11, the second air outlet 12 and the third air outlet 13 can be ensured. In addition, the air outlet area of the second air outlet 12 is larger than the air outlet area of the first air outlet 11 and the air outlet area of the third air outlet 13, so that the air outlet volume of the second air outlet 12 is larger than the air outlet volume of the first air outlet 11 or the air outlet volume of the third air outlet 13, the air outlet effect of the vertical air conditioner 100 can be improved, and the cooling or heating effect of the vertical air conditioner 100 can be ensured to be good.

As shown in fig. 1 to 3, the first outlet 11 and the third outlet 13 are symmetrically disposed about the second outlet 12. Specifically, the first air outlet 11 and the third air outlet 13 are symmetrically arranged on two sides of the second air outlet 12, so that the air outlet heights of the first air outlet 11 and the second air outlet 12 are consistent, the air outlet stability of the second air outlet 12 can be improved, and the air outlet reliability of the vertical air conditioner 100 can be improved.

As shown in fig. 1-2, the first air outlet 11, the second air outlet 12, and the third air outlet 13 are disposed at the front side of the machine shell 10, and projections of the first axial fan 31 and the second axial fan 32 at the front side of the machine shell 10 are symmetrically disposed about a vertical center line of the second air outlet 12. Specifically, the projections of the first axial fan 31 and the second axial fan 32 on the front side of the casing 10 are symmetrically arranged with respect to the vertical center line of the second air outlet 12, so that the common air supply area of the first axial fan 31 and the second axial fan 32 is symmetrically arranged with respect to the vertical center line of the second air outlet 12, and therefore the air outlet volume and the air velocity of the first air outlet 11 and the third air outlet 13 can be kept consistent, the air outlet efficiency of the vertical air conditioner 100 can be made to be the highest, the air outlet effect is the best, and the use experience of a user can be improved.

In addition, the first outlet 11, the second outlet 12, and the third outlet 13 are disposed at the front side of the casing 10, so that the wind from the first axial fan 31 and the second axial fan 32 can be directly blown to the front side of the direct current fan and can be blown out from the first outlet 11, the second outlet 12, and the third outlet 13, thereby improving the transmission efficiency of the wind in the floor air conditioner 100.

As shown in fig. 2 to fig. 3, the vertical air conditioner 100 further includes a first air guiding plate 60, and the first air guiding plate 60 is disposed at the first air outlet 11 for opening and closing the first air outlet 11. Specifically, the first air guiding plate 60 is disposed at the first air outlet 11, so that the air can directly flow to the first air guiding plate 60 after flowing out from the first air outlet 11, and the air flows more quickly and smoothly after the air guiding effect of the first air guiding plate 60. In addition, the user can change the air outlet direction of the first air outlet 11 by adjusting the air guide direction of the first air deflector 60, so that the air coming out from the first air outlet 11 can be blown to a designated place, the practicability and the convenience of the vertical air conditioner 100 can be improved, and the use experience of users can be improved.

Further, the first air deflector 60 is disposed on the inner side of the air-out plate 50, so that the air-out form of the first air outlet 11 is not affected on the premise of acceleration and guidance of the air coming out of the first air outlet 11, the functional diversity of the vertical air conditioner 100 can be ensured, and the use requirements of different users on the vertical air conditioner 100 can be met.

As shown in fig. 2 to fig. 3, the vertical air conditioner 100 further includes a second air guiding plate 70, and the second air guiding plate 70 is disposed at the second air outlet 12 for opening and closing the second air outlet 12. Specifically, the second air guiding plate 70 is disposed at the second air outlet 12, so that the air can flow out of the second air outlet 12 and then directly flow to the second air guiding plate 70, and the air flows faster and smoother after the air guiding action of the second air guiding plate 70. In addition, the user can change the air outlet direction of the second air outlet 12 by adjusting the air guiding direction of the second air guiding plate 70, so that the air coming out from the second air outlet 12 can be blown to a designated place, thereby improving the practicability and convenience of the vertical air conditioner 100 and improving the use experience of users.

As shown in fig. 2 to fig. 3, the vertical air conditioner 100 further includes a third air guiding plate 80, and the third air guiding plate 80 is disposed at the third air outlet 13 for opening and closing the third air outlet 13. Specifically, the third air deflector 80 is disposed at the third air outlet 13, so that the air can flow out of the third air outlet 13 and then directly flow to the third air deflector 80, and the air flows more rapidly and smoothly under the air guiding action of the third air deflector 80. In addition, the user can change the air outlet direction of the third air outlet 13 by adjusting the air guide direction of the third air deflector 80, and the air coming out from the third air outlet 13 can be blown to a designated place, so that the practicability and convenience of the vertical air conditioner 100 can be improved, and the use experience of users can be improved.

Further, the third air deflector 80 is disposed on the inner side of the air outlet plate 50, so that the air outlet form of the third air outlet 13 is not affected on the premise of accelerating and guiding the air coming out of the third air outlet 13, the functional diversity of the vertical air conditioner 100 can be ensured, and the use requirements of different users on the vertical air conditioner 100 can be met.

Referring to fig. 1 to fig. 3, the housing 10 is provided with an air outlet frame 20, the air outlet frame 20 is cylindrical, and the air outlet frame 20 is provided with an air inlet 21 and a second air outlet 12 which are oppositely arranged. Specifically, the air-out frame 20 is cylindrical, and the air inlet 21 and the second air outlet 12 are oppositely arranged on the air-out frame 20, so that the air inlet 21 and the second air outlet 12 are compact in structure and firm in position, and the vertical air conditioner 100 can be conveniently assembled. In addition, the air outlet frame 20 is cylindrical, so that the air outlet frame 20 can be conveniently rotated, the flexibility of the vertical air conditioner 100 can be increased, and the use experience of a user can be improved.

Further, one side of the air inlet 21 is communicated with the first axial fan 31 and the second axial fan 32, and the other side is communicated with the second air outlet 12, and the air outlet frame 20 is rotatable relative to the housing 10 for closing the second air outlet 12. Specifically, air intake 21 can make wind get into this vertical air conditioner 100 in the back direct flow direction first axial fan 31 and second axial fan 32, so that first axial fan 31 and second axial fan 32 carry out the effect of blowing, it can rotate on casing 10 to go out wind frame 20, when going out wind frame 20 and rotate to overlapping with casing 10 entity, second air outlet 12 is stopped up, second air outlet 12 is not the air-out, first air outlet 11 and the normal air-out of third air outlet 13 this moment, can change this vertical air conditioner 100's the form of blowing, can make this vertical air conditioner 100 provide different air supply modes for the user, thereby can satisfy different crowds' user demand.

As shown in fig. 2, the plurality of outlet holes 51 are uniformly spaced in a row on the outlet plate 50. Specifically, the number of the air outlet holes 51 formed in the air outlet plate 50 is unlimited, and the positions of all the air outlet holes 51 on the air outlet plate 50 are arranged in a rectangular array, so that the air output and the air output rate of the first air outlet 11 and the third air outlet 13 can be obviously changed under the condition that the area of the air outlet plate 50 is not changed, and therefore the air output and the air output rate of the first air outlet 11 and the third air outlet 13 of the vertical air conditioner 100 can be different from the air output and the air output rate of the second air outlet 12, and the vertical air conditioner 100 can meet the requirements of different people on the air output effect.

As shown in fig. 1, the floor air conditioner 100 further includes an indoor heat exchanger 40, the indoor heat exchanger 40 is disposed in the casing 10, and the indoor heat exchanger 40 is located behind the fan assembly 30. Specifically, the indoor heat exchanger 40 is disposed in the casing 10, so that the air entering the casing 10 can exchange heat, and the vertical air conditioner 100 can perform cooling or heating to the outside. In addition, the indoor heat exchanger 40 is located behind the fan set 30, so that the air can be subjected to a heat exchange action by the indoor heat exchanger 40 before being blown out at the first outlet 11, the second outlet 12 and the third outlet 13 of the vertical air conditioner 100, thereby ensuring that the air blown out by the vertical air conditioner 100 has a cooling or heating action, and ensuring the operational reliability of the vertical air conditioner 100.

Referring to fig. 1, the indoor heat exchanger 40 is an integrated heat exchanger, the air inlet 21 and the indoor heat exchanger 40 are disposed opposite to each other in the front-rear direction, and the indoor heat exchanger 40 is U-shaped, V-shaped, or arc-shaped. Specifically, the indoor heat exchanger 40 is structurally integrated, so that the indoor heat exchanger 40 is stable and reliable in structure, and the phenomenon that the mechanism is unstable due to long-term wind blowing when the indoor heat exchanger 40 works can be prevented, and further the working stability of the indoor heat exchanger 40 is influenced. In addition, the integrated heat exchanger can simplify the manufacturing process of the floor air conditioner 100, and can simplify the assembly of the floor air conditioner 100.

In addition, the air inlet 21 and the indoor heat exchanger 40 are arranged oppositely in the front-rear direction, so that the structural design of the floor type air conditioner 100 is more reasonable and compact, and the air flows out of the indoor heat exchanger 40 and directly flows to the air inlet 21 by the relative arrangement in the front-rear direction, so that the flow path of the air in the floor type air conditioner 100 is shortest, and the air outlet efficiency of the floor type air conditioner 100 can be improved.

Furtherly, indoor heat exchanger 40 is U-shaped, V-arrangement or arc, and indoor heat exchanger 40's windward surface is protruding shape, and the air supply personally submits concave surface shape, so sets up, can make wind be by indoor heat exchanger 40 heat transfer processing back, and flow direction air intake 21 can prevent windy outflow from indoor heat exchanger 40's the outside, unable and indoor heat exchanger 40 contact heat transfer, leads to indoor heat exchanger 40's heat exchange efficiency to reduce, can further promote indoor heat exchanger 40's heat transfer reliability like this.

In addition, the indoor heat exchanger 40 is U-shaped, V-shaped or arc-shaped, which not only can make the structure of the indoor heat exchanger 40 reliable, but also can facilitate the manufacture, installation, operation and maintenance of the indoor heat exchanger 40, and can improve the applicability of the vertical air conditioner 100.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A floor air conditioner (100), comprising:

the air conditioner comprises a machine shell (10), wherein the machine shell (10) is provided with a first air outlet (11), a second air outlet (12) and a third air outlet (13) which are sequentially arranged at intervals in the left-right direction;

the fan set (30), the fan set (30) is arranged in the machine shell (10), the fan set (30) comprises a first axial fan (31) and a second axial fan (32), and the first axial fan (31) and the second axial fan (32) are communicated with the first air outlet (11), the second air outlet (12) and the third air outlet (13);

air-out board (50), air-out board (50) set up in first air outlet (11) second air outlet (12) with at least one department in third air outlet (13), be formed with exhaust vent (51) that a plurality of intervals set up on air-out board (50).

2. The floor air conditioner (100) according to claim 1, wherein the air outlet plate (50) is disposed at the first air outlet (11) and the third air outlet (13).

3. The floor air conditioner (100) of claim 2, wherein the air outlet areas of the first air outlet (11) and the third air outlet (13) are the same, and the air outlet area of the second air outlet (12) is larger than the air outlet areas of the first air outlet (11) and the third air outlet (13).

4. Floor air conditioner (100) according to claim 3, characterized in that said first outlet mouth (11) and said third outlet mouth (13) are arranged symmetrically with respect to said second outlet mouth (12).

5. The floor air conditioner (100) according to claim 2, wherein the first air outlet (11), the second air outlet (12) and the third air outlet (13) are disposed at a front side of the cabinet (10), and projections of the first axial fan (31) and the second axial fan (32) at the front side of the cabinet (10) are symmetrically disposed about a vertical center line of the second air outlet (12).

6. The floor air conditioner (100) of claim 2, further comprising: the first air deflector (60) is arranged at the first air outlet (11) and used for opening and closing the first air outlet (11), and the first air deflector (60) is arranged on the inner side of the air outlet plate (50);

the floor air conditioner (100) further includes: the second air deflector (70), the second air deflector (70) is arranged at the second air outlet (12) and used for opening and closing the second air outlet (12);

the floor air conditioner (100) further includes: the third air deflector (80) is arranged at the third air outlet (13) and used for opening and closing the third air outlet (13), and the third air deflector (80) is arranged on the inner side of the air outlet plate (50).

7. The floor air conditioner (100) according to claim 2, wherein the cabinet (10) is provided with an air outlet frame (20), the air outlet frame (20) is cylindrical, the air outlet frame (20) is provided with an air inlet (21) and the second air outlet (12) which are oppositely arranged, one side of the air inlet (21) is communicated with the first axial fan (31) and the second axial fan (32), the other side of the air inlet is communicated with the second air outlet (12), and the air outlet frame (20) is rotatable relative to the cabinet (10) for closing the second air outlet (12).

8. The floor air conditioner (100) according to claim 1, wherein a plurality of the outlet holes (51) are uniformly spaced in a row on the outlet plate (50).

9. The floor air conditioner (100) according to claim 7, further comprising: the indoor heat exchanger (40), the indoor heat exchanger (40) set up in casing (10), indoor heat exchanger (40) are located the rear of fan group (30).

10. The floor air conditioner (100) according to claim 9, wherein the indoor heat exchanger (40) is an integral heat exchanger, the air inlet (21) and the indoor heat exchanger (40) are arranged opposite to each other in the front-rear direction, and the indoor heat exchanger (40) is U-shaped, V-shaped or circular arc-shaped.