Air conditioner

Abstract

The utility model provides an air conditioner which comprises a shell and a heat exchanger, an air channel is defined by the shell, and the air channel is provided with a first air inlet and an air outlet; the heat exchanger is arranged in the air duct and located on the downstream of the first air inlet. An on-off controlled flow passage sub-duct is arranged between the heat exchanger and the wall surface of the air duct, so that under the condition that the flow passage sub-duct is communicated, one part of inlet air of the first air inlet flows to the air outlet through the heat exchanger, and the other part of the inlet air directly flows to the air outlet through the flow passage sub-duct; and / or the air duct is further provided with a second air inlet controlled to be opened and closed. The second air inlet is located in the downstream of the heat exchanger, so that under the condition that the second air inlet is opened, inlet air of the second air inlet is directly blown out of the air outlet. According to the air conditioner, the air outlet temperature can be rapidly adjusted, and the air outlet volume is uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air treatment equipment, in particular to an air conditioner. BACKGROUND

[0002] When the air conditioner directly blows air to the user, the user may feel that the air temperature is too low or too high, and needs to adjust the air temperature to be higher or lower. The air conditioner in the related art usually adjusts the air temperature by controlling the air volume of the air outlet or the operating frequency of the compressor. However, when the air temperature is adjusted by the operating frequency of the compressor, the operating frequency of the compressor needs to be gradually adjusted to slowly increase or decrease the air temperature, which results in a long waiting time for the user and a poor user experience. Adjusting the air temperature by adjusting the air volume of the air outlet will cause a large difference in the air volume of the air outlet during adjustment, resulting in uneven air volume of the air outlet during adjustment and a poor user experience. SUMMARY

[0003] In view of the above problems, the utility model is proposed to provide an air conditioner that overcomes the above problems or at least partially solves the above problems. The air conditioner of the utility model aims to solve the problem of how to quickly adjust the air temperature while making the air volume more uniform, so as to improve the user experience.

[0004] Specifically, the utility model provides an air conditioner.

[0005] The air conditioner of the utility model comprises: a shell defining an air duct, the air duct having a first air inlet and an air outlet; a heat exchanger disposed in the air duct downstream of the first air inlet; and a flow sub-duct with controlled on-off between the heat exchanger and the wall surface of the air duct. When the flow sub-duct is connected, part of the air inlet of the first air inlet flows through the heat exchanger to the air outlet, and the other part directly flows through the flow sub-duct to the air outlet. Furthermore, the air duct also has a second air inlet with controlled opening and closing; the second air inlet is downstream of the heat exchanger, so that when the second air inlet is opened, the air inlet of the second air inlet is directly blown out of the air outlet.

[0006] In some embodiments, a damper assembly is provided on the flow sub-duct and / or the second air inlet, which is used to control the on-off of the flow sub-duct and / or the opening and closing of the second air inlet.

[0007] In some embodiments, when the air duct has a second air inlet, the damper assembly comprises: a cover plate rotatably connected at the second air inlet to allow the cover plate to close or avoid the second air inlet, thereby adjusting the opening degree of the corresponding second air inlet; at least one air guide, the extension direction of the air guide being consistent with the extension direction of the air duct; the air guide being connected between the cover plate and the shell, and the air guide being foldable and unfoldable to allow the cover plate to rotate when the air guide is folded or unfolded.

[0008] In some embodiments, each air guide comprises: a first plate body, one end of the first plate body being rotatably connected with the cover plate; a second plate body, one end of the second plate body being rotatably connected with the other end of the first plate body, and the other end of the second plate body being rotatably connected with the inner wall of the air duct.

[0009] In some embodiments, each air guide further comprises: a first elastic connecting piece connected between the first plate body and the cover plate; a second elastic connecting piece connected between the first plate body and the second plate body; and a third elastic connecting piece connected between the second plate body and the inner wall of the air duct; the first, second and third elastic connecting pieces are all elastically deformable.

[0010] In some embodiments, the first plate body and the second plate body are both triangular, and the first plate body and the second plate body are symmetrically arranged.

[0011] In some embodiments, the rotating end of the cover plate is located upstream of the second air inlet; the cover plate has a first end portion and a second end portion opposite to each other on the rotation axis of the cover plate; the damper assembly comprises two air guides, including a first air guide and a second air guide, the first air guide being connected between the first end portion and the inner wall of the air duct, and the second air guide being connected between the second end portion and the inner wall of the air duct.

[0012] In some embodiments, the damper assembly further comprises: a telescopic rod, the size of the telescopic rod in the length direction being adjustable, one end of the telescopic rod in the length direction being rotatably connected with the shell, and the other end of the telescopic rod in the length direction being rotatably connected with the cover plate.

[0013] In some embodiments, in the case that the air duct has the sub-air duct, the air door assembly comprises a baffle, the baffle is rotatably arranged on a wall surface of the air duct, and the baffle corresponds to the sub-air duct; a free end of the baffle is contactable with the heat exchanger, so that when the free end of the baffle is in contact with the heat exchanger, the baffle closes the sub-air duct.

[0014] In some embodiments, the shell further comprises a partition plate, the partition plate is mounted on a bottom wall surface of the air duct, and the partition plate is connected to at least a lower part of the side wall of the air duct; the partition plate is located downstream of the heat exchanger to at least separate a lower space of the heat exchanger from the air outlet.

[0015] The air conditioner of the embodiment of the present application has the following advantages: the second air inlet and / or the sub-air duct are additionally arranged on the downstream side of the heat exchanger, so that in the case that the air inlet amount and the air outlet amount in the air duct change little or even remain unchanged, a part of the air inlet is exchanged with the heat exchanger, and another part of the air inlet directly passes through the air outlet to be blown out. In the case that the user quickly adjusts the air outlet temperature, for example, the air outlet temperature is too low and the air outlet temperature needs to be increased, the second air inlet and / or the sub-air duct are opened, so that a part of the air in the air duct is not exchanged with the heat exchanger to be cooled and directly discharged from the air outlet, thereby achieving the purpose of quickly increasing the air outlet temperature, and the air outlet amount changes little or even remains unchanged, so that the air outlet temperature is quickly adjusted, and the air outlet amount is more uniform, thereby improving the user experience.

[0016] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar components or parts. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0018] Figure 1 is a schematic structural view of an air conditioner of an embodiment of the present application;

[0019] Figure 2 is Figure 1 is a schematic structural view of an air conditioner of an embodiment of the present application;

[0020] Figure 3 is a schematic structural view of an air conditioner of an embodiment of the present application;

[0021] Figure 4 is a schematic structural diagram of an air conditioner according to an embodiment of the present application;

[0022] Figure 5 is a schematic structural diagram of an air conditioner according to an embodiment of the present application.

[0023] Reference signs:

[0024] Housing 100; air duct 110; first air inlet 120; air outlet 130; flow sub-air duct 140; second air inlet 150; protruding portion 160; heat exchanger 200; air door assembly 300; cover plate 310; first end portion 311; second end portion 312; air guide 320; first plate body 321; second plate body 322; first elastic connecting piece 323; second elastic connecting piece 324; third elastic connecting piece 325; telescopic rod 330; baffle 340; free end 341; partition 400; air-permeable through hole 410; annular guide 420; fan 500. DETAILED DESCRIPTION

[0025] The air conditioner according to the embodiments of the present application will be described below with reference to Figures 1 to 5 In the description of the present application, it should be understood that the terms "first", "second" are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features and can further include other features.

[0026] Unless otherwise specifically defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and other terms should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0027] In addition, in the description of the embodiments, the first feature being "on" or "under" the second feature can include the first and second features being in direct contact, or can include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of the embodiments, the first feature being "on", "above", and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature being "under", "below", or "underneath" the second feature can be the first feature being directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0028] In the description of the embodiments, the description of the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the description, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The air conditioner of the embodiments of the utility model is described below with reference to the drawings.

[0030] As shown in Figures 1 to 5 The air conditioner of the embodiments of the utility model includes a shell 100 and a heat exchanger 200.

[0031] The shell 100 defines an air duct 110, and the air duct 110 has a first air inlet 120 and an air outlet 130. The heat exchanger 200 is arranged in the air duct 110, and the heat exchanger 200 is downstream of the first air inlet 120, that is, when external air enters the air duct 110 through the first air inlet 120, the airflow will flow to the heat exchanger 200 located downstream of the first air inlet 120.

[0032] The heat exchanger 200 and the wall surface of the air duct 110 have a flow sub-duct 140 with controlled on-off, that is, the flow sub-duct 140 can be controlled to be turned on or off. In the case that the flow sub-duct 140 is connected, part of the air inlet of the first air inlet 120 flows to the air outlet 130 through the heat exchanger 200, and the other part of the air inlet of the first air inlet 120 directly flows to the air outlet 130 through the flow sub-duct 140.

[0033] In some other optional examples, the air duct 110 also has a second air inlet 150 with controlled opening and closing. The second air inlet 150 is downstream of the heat exchanger 200, so that in the case that the second air inlet 150 is opened, the air inlet of the second air inlet 150 is directly blown out from the air outlet 130.

[0034] In the air conditioner, the air duct 110 has the second air inlet 150 which is controlled to be opened or closed and is located downstream of the heat exchanger 200, so that another part of the air entering the second air inlet 150 is directly blown out from the air outlet 130 without being heat-exchanged with the heat exchanger 200. Alternatively, the heat exchanger 200 and the wall surface of the air duct 110 have the flow sub-duct 140 which is controlled to be opened or closed, so that another part of the air entering the first air inlet 120 directly flows to the air outlet 130 through the flow sub-duct 140 without being heat-exchanged with the heat exchanger 200. Alternatively, the air duct 110 has the second air inlet 150 which is controlled to be opened or closed and is located downstream of the heat exchanger 200, and the heat exchanger 200 and the wall surface of the air duct 110 have the flow sub-duct 140 which is controlled to be opened or closed, so that another part of the air entering the second air inlet 150 is directly blown out from the air outlet 130, and another part of the air entering the first air inlet 120 directly flows to the air outlet 130 through the flow sub-duct 140, and only a part of the air entering the first air inlet 120 is heat-exchanged with the heat exchanger 200.

[0035] Compared with the related art, in the air conditioner, the second air inlet 150 which can enter air is additionally arranged on the downstream side of the heat exchanger 200, and / or the flow sub-duct 140 which can supply air flow is arranged between the heat exchanger 200 and the wall surface of the air duct 110, so that, in the case that the air entering amount and the air outlet amount in the air duct 110 change little or even do not change, a part of the air is heat-exchanged with the heat exchanger 200, and another part of the air is directly blown out through the air outlet 130. In the case that the user quickly adjusts the air outlet temperature, for example, the air outlet temperature is too low, and it is needed to increase the air outlet temperature, the second air inlet 150 and / or the flow sub-duct 140 are opened, so that a part of the air entering the air duct 110 is not heat-exchanged with the heat exchanger 200 and is directly discharged from the air outlet 130, so that the purpose of quickly increasing the air outlet temperature is achieved, and the air outlet amount changes little or even does not change, so that the effect of more uniformly adjusting the air outlet temperature is achieved, and the use experience of the user is improved.

[0036] In some embodiments, as shown in Figs. 1 to 3, the flow sub-duct 140 and / or the second air inlet 150 is arranged on the air duct 110. Figure 2 and Figure 5 As shown in Figs. 1 to 3, the air door assembly 300 is arranged on the flow sub-duct 140 and / or the second air inlet 150, and the air door assembly 300 is correspondingly used for controlling the opening and closing of the flow sub-duct 140 and / or the second air inlet 150.

[0037] That is, in the case that the overcurrent sub-air duct 140 is arranged between the heat exchanger 200 and the wall surface of the air duct 110, the air door assembly 300 is used to control the opening and closing of the overcurrent sub-air duct 140; or in the case that the air duct 110 has the second air inlet 150, the air door assembly 300 is used to control the opening and closing of the second air inlet 150; or in the case that the overcurrent sub-air duct 140 is arranged between the heat exchanger 200 and the wall surface of the air duct 110 and the air duct 110 has the second air inlet 150, the air door assembly 300 is correspondingly used to control the opening and closing of the overcurrent sub-air duct 140 and the opening and closing of the second air inlet 150. Thus, by arranging the air door assembly 300 in the shell 100, the opening and closing of the overcurrent sub-air duct 140 and / or the opening and closing of the second air inlet 150 can be controlled.

[0038] In some embodiments, as shown in FIG. 1, the second air inlet 150 is a plurality of second air inlets 150, and the plurality of second air inlets 150 are arranged at intervals in a direction perpendicular to the extension direction of the air duct 110. The air door assembly 300 is a plurality of air door assemblies 300, and the plurality of air door assemblies 300 are arranged one-to-one corresponding to the plurality of second air inlets 150, and each air door assembly 300 is used to control the opening and closing of the corresponding second air inlet 150. The plurality of second air inlets 150 are arranged at intervals in the air duct 110, so that the air inlet of the plurality of second air inlets 150 can be more uniformly mixed with the air inlet of the first air inlet 120, thereby making the air outlet temperature of the air conditioner more uniform. Figures 1 to 4 In some embodiments, as shown in FIG. 1, the second air inlet 150 is a plurality of second air inlets 150, and the plurality of second air inlets 150 are arranged at intervals in a direction perpendicular to the extension direction of the air duct 110. The air door assembly 300 is a plurality of air door assemblies 300, and the plurality of air door assemblies 300 are arranged one-to-one corresponding to the plurality of second air inlets 150, and each air door assembly 300 is used to control the opening and closing of the corresponding second air inlet 150. The plurality of second air inlets 150 are arranged at intervals in the air duct 110, so that the air inlet of the plurality of second air inlets 150 can be more uniformly mixed with the air inlet of the first air inlet 120, thereby making the air outlet temperature of the air conditioner more uniform.

[0039] Figures 1 to 4 In some embodiments, as shown in FIG. 1, in the case that the air duct 110 has the second air inlet 150, the air door assembly 300 includes a cover plate 310 and an air guide 320.

[0040] The cover plate 310 is rotatably connected at the second air inlet 150, so as to close or avoid the second air inlet 150, thereby adjusting the opening degree of the corresponding second air inlet 150.

[0041] The air guide 320 is at least one, and the extension direction of the air guide 320 is consistent with the extension direction of the air duct 110; the air guide 320 is connected between the cover plate 310 and the shell 100, and the air guide 320 can be folded and unfolded, so as to allow the cover plate 310 to rotate when the air guide 320 is folded or unfolded. That is, when the opening degree of the cover plate 310 increases, the air guide 320 can be unfolded, so that the cover plate 310 can be opened to a state where the air guide 320 is flat. When the opening degree of the cover plate 310 decreases, the air guide 320 can be folded, so that the cover plate 310 can completely close the second air inlet 150.

[0042] ​By arranging the air deflector at the second air inlet 150, the air deflector can guide the air at the second air inlet 150, avoid the air loss at the second air inlet 150, and make the air volume of the air conditioner more uniform. Moreover, the air deflector and the cover plate 310 are combined, without affecting the normal opening and closing of the cover plate 310, without occupying other positions in the air duct 110, and reducing the structural redundancy.

[0043] Further, as shown in Figure 2 each air deflector 320 includes a first plate body 321 and a second plate body 322. One end of the first plate body 321 is rotatably connected to the cover plate 310. One end of the second plate body 322 is rotatably connected to the other end of the first plate body 321, and the other end of the second plate body 322 is rotatably connected to the inner wall of the air duct 110. Thus, the air deflector is formed by the rotatable connection of the first plate body 321 and the second plate body 322, which not only realizes the folding and unfolding of the air deflector between the cover plate 310 and the air duct 110, but also has a simple structure and is easy to manufacture.

[0044] In some embodiments, as shown in Figure 2 each air deflector 320 further includes a first elastic connecting piece 323, a second elastic connecting piece 324, and a third elastic connecting piece 325, which can all be elastically deformed. The first elastic connecting piece is connected between the first plate body 321 and the cover plate 310, the second elastic connecting piece is connected between the first plate body 321 and the second plate body 322, and the third elastic connecting piece is connected between the second plate body 322 and the inner wall of the air duct 110. Since the first, second, and third elastic connecting pieces 323, 324, and 325 can all be elastically deformed, the first plate body 321 and the second plate body 322 have a large degree of freedom when they are folded and unfolded, so that the cover plate 310 can have a larger opening, and thus the air volume adjustment effect of the air door assembly 300 is better.

[0045] Optionally, the first, second, and third elastic connecting pieces 323, 324, and 325 can all be made of rubber.

[0046] Specifically, the first plate body 321 and the second plate body 322 are both triangular, and the first plate body 321 and the second plate body 322 are symmetrically arranged about the rotation axis of the first plate body 321 relative to the second plate body 322. That is, in the opened state of the cover plate 310, the first plate body 321 and the second plate body 322 form a structure that is adapted to the gap formed between the cover plate 310 and the air duct 110, thereby avoiding the air inlet of the second air inlet 150 deviating from the extension direction of the air duct 110, and thus further reducing the air loss of the second air inlet 150, so that the air volume of the air conditioner of the embodiment is more uniform.

[0047] In some embodiments, as shown in Figure 3 the rotation end of the cover plate 310 is located upstream of the second air inlet 150; the cover plate 310 has a first end 311 and a second end 312 opposite each other on the rotation axis of the cover plate 310, that is, the rotation axis of the cover plate 310 is perpendicular to the extension direction of the air duct 110. The damper assembly 300 includes two air guide members 320, which are respectively a first air guide member 320 and a second air guide member 320, the first air guide member 320 being connected between the first end 311 and the inner wall surface of the air duct 110; and the second air guide member 320 being connected between the second end 312 and the inner wall surface of the air duct 110.

[0048] That is, the first air guide member 320 and the second air guide member 320 are respectively located on both sides of the cover plate 310 perpendicular to the extension direction of the air duct 110, so that through the guiding action of the first air guide member 320 and the second air guide member 320, the air inlet of the second air inlet 150 can flow more smoothly to the air outlet 130.

[0049] In other optional embodiments, one end of the first plate body 321 is hinged to the cover plate 310, the other end of the first plate body 321 is hinged to one end of the second plate body 322, and the other end of the second plate body 322 is hinged to the shell 100.

[0050] In some embodiments, as shown in Figures 1 to 3 the damper assembly 300 further includes a telescopic rod 330, the size of the telescopic rod 330 in the length direction thereof is adjustable, one end of the telescopic rod 330 in the length direction thereof is rotatably connected to the shell 100, and the other end of the telescopic rod 330 in the length direction thereof is rotatably connected to the cover plate 310. Thus, by the extension and retraction of the telescopic rod 330, the opening and closing of the cover plate 310 are controlled, which not only can control the opening and closing of the second air inlet 150, but also has a simple structure and is easy to manufacture and install.

[0051] Optionally, the telescopic rod 330 is an electric telescopic cylinder.

[0052] In some embodiments, as shown in Figure 5As shown, in the case that the air duct 110 has the sub-air duct 140, the air door assembly 300 comprises a baffle 340, which is rotatably arranged on the wall surface of the air duct 110 and corresponds to the sub-air duct 140; the free end 341 of the baffle 340 is in contact with the heat exchanger 200, so that the baffle 340 closes the sub-air duct 140 when the free end 341 of the baffle 340 is in contact with the heat exchanger 200. Thus, the opening and closing of the sub-air duct 140 is controlled by the rotation of the baffle 340, and the baffle 340 completely closes the sub-air duct 140 when the free end 341 of the baffle 340 is in contact with the heat exchanger 200, so that the air conditioner of the embodiment has simple structure and is easy to manufacture.

[0053] Further, the first air inlet 120 is two, and the two first air inlets 120 correspond to the heat exchanger 200 and the sub-air duct 140 respectively, so that the air entering the two first air inlets 120 can pass through the heat exchanger 200 and the sub-air duct 140 respectively more smoothly, thereby reducing the air loss of the air.

[0054] In some embodiments, as Figure 5 As shown, the shell 100 further comprises a partition plate 400, which is mounted on the bottom wall surface of the air duct 110 and is connected to at least the lower part of the side wall of the air duct 110. The partition plate 400 is located downstream of the heat exchanger 200 to at least separate the lower space of the heat exchanger 200 from the air outlet 130. That is, when the heat exchanger 200 condenses condensed water due to heat exchange, the condensed water may accumulate at the bottom of the heat exchanger 200. The lower part of the partition plate 400 separates the lower space of the heat exchanger 200 from the air outlet 130, avoiding the condensed water from flowing out of the air outlet 130.

[0055] In some embodiments, when the air duct 110 is provided with the second air inlet 150, the bottom wall surface of the air duct 110 has a protruding part 160 protruding upward, and the protruding part 160 is located between the partition plate 400 and the heat exchanger 200; one end of the second air inlet 150 penetrates the upper end surface of the protruding part 160, and the other end of the second air inlet 150 penetrates the outer surface of the shell 100. That is, the upper end of the second air outlet 130 is higher than the bottom wall surface of the air duct 110, and when the bottom wall surface of the air duct 110 accumulates condensed water, the condensed water will not flow out of the second air outlet 130.

[0056] In some embodiments, as Figure 1The shell 100 shown further comprises a partition 400 provided with a through hole 410, and the through hole 410 is provided with a ring-shaped guide 420, and the extending direction of the ring-shaped guide 420 is consistent with the extending direction of the air duct 110. The air conditioner further comprises a fan 500, and the fan 500 is arranged in the air duct 110; the fan 500 corresponds to the air outlet end of the ring-shaped guide 420, and the end face of the air outlet end is a circular arc face, so that the end face of the air outlet end is adapted to the outer contour of the fan 500. Therefore, through the guiding effect of the ring-shaped guide 420, the airflow in the air duct 110 flows more smoothly to the air outlet 130, so that the air outlet of the air conditioner is more uniform.

[0057] At this point, those skilled in the art should recognize that although the present application has been shown and described in detail in this paper, many other variants or modifications conforming to the principles of the present application can be directly determined or deduced according to the content disclosed by the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variants or modifications.

Claims

1. An air conditioner characterized by comprising: The air conditioner comprises: a housing defining an air duct, the air duct having a first air inlet and an air outlet; a heat exchanger arranged in the air duct and downstream of the first air inlet; and a flow sub-duct with a controlled opening and closing between the heat exchanger and a wall of the air duct, when the flow sub-duct is open, a part of the air entering the first air inlet flows through the heat exchanger to the air outlet, and another part of the air entering the first air inlet directly flows through the flow sub-duct to the air outlet; and / or the air duct further has a second air inlet with a controlled opening and closing, the second air inlet is downstream of the heat exchanger, so that when the second air inlet is open, the air entering the second air inlet directly blows out from the air outlet.

2. The air conditioner according to claim 1, wherein a damper assembly is arranged on the flow sub-duct and / or the second air inlet, the damper assembly is used to control the opening and closing of the flow sub-duct and / or the opening and closing of the second air inlet.

3. The air conditioner according to claim 2, wherein when the air duct has a second air inlet, the damper assembly comprises: a cover plate rotatably connected to the second air inlet, so that the cover plate closes or avoids the second air inlet, thereby adjusting the opening degree of the corresponding second air inlet; at least one air guide member, the extension direction of the air guide member is consistent with the extension direction of the air duct, the air guide member is connected between the cover plate and the housing, and the air guide member can be folded and unfolded to allow the cover plate to rotate when the air guide member is folded or unfolded.

4. The air conditioner according to claim 3, wherein each air guide member comprises: a first plate body, one end of the first plate body is rotatably connected to the cover plate; a second plate body, one end of the second plate body is rotatably connected to the other end of the first plate body, and the other end of the second plate body is rotatably connected to the inner wall of the air duct.

5. The air conditioner according to claim 4, wherein each air guide member further comprises: a first elastic connecting piece connected between the first plate body and the cover plate; a second elastic connecting piece connected between the first plate body and the second plate body; and a third elastic connecting piece connected between the second plate body and the inner wall of the air duct; the first, second and third elastic connecting pieces can all be elastically deformed.

6. The air conditioner according to claim 4, wherein the first and second plate bodies are both triangular, and the first and second plate bodies are symmetrically arranged.

7. The air conditioner according to claim 3, wherein the rotating end of the cover plate is located upstream of the second air inlet, and the cover plate has a first end portion and a second end portion opposite to each other on the rotating axis of the cover plate. The air door assembly comprises two air guide members, including a first air guide member and a second air guide member, the first air guide member is connected between the first end portion and the inner wall surface of the air duct, and the second air guide member is connected between the second end portion and the inner wall surface of the air duct.

8. The air conditioner of claim 3, wherein, The air door assembly further comprises: a telescopic rod, the telescopic rod is adjustable in length, one end of the telescopic rod is rotatably connected to the housing, and the other end of the telescopic rod is rotatably connected to the cover plate.

9. The air conditioner of claim 2, wherein, in the case that the air duct has the sub-air duct, the air door assembly comprises a baffle, the baffle is rotatably arranged on the wall surface of the air duct and corresponds to the sub-air duct, the free end of the baffle is contactable with the heat exchanger, and when the free end of the baffle is in contact with the heat exchanger, the baffle closes the sub-air duct.

10. The air conditioner of claim 1, wherein The housing further comprises: a partition plate, the partition plate is mounted on the bottom wall surface of the air duct and is connected to at least the lower part of the side wall of the air duct, and the partition plate is located downstream of the heat exchanger to at least separate the lower space of the heat exchanger from the air outlet.

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