An air conditioner

Abstract

This application relates to the field of air conditioning, and provides an air conditioner. The air conditioner includes a housing, a first heat exchanger, a first fan, a second heat exchanger, and a second fan. The housing includes an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet, a first cavity, and a second cavity. The indoor air inlet and the indoor air outlet are both communicated with the first cavity, and both the indoor air inlet and the indoor air outlet can be communicated with the indoor space. The outdoor air inlet and the outdoor air outlet are both communicated with the second cavity, and both the outdoor air outlet and the outdoor air inlet can be communicated with the outdoor space. The first heat exchanger and the first fan are both disposed in the first cavity. The second heat exchanger and the second fan are both disposed in the second cavity. In the air conditioner provided by the embodiment of this application, the second fan draws air from the outdoor, exchanges heat through the second heat exchanger, and then discharges the air to the outdoor. The first fan draws air from the indoor, exchanges heat through the first heat exchanger, and then blows the air into the indoor. In this way, it is avoided that the second fan draws air from the indoor, and the heat exchange efficiency of the air conditioner is high.

Description

Technical Field

[0001] This application relates to the technical field of air conditioning, and particularly to an air conditioner. Background Art

[0002] Bathrooms usually have a relatively small internal space and poor ventilation conditions. Especially when users use the bathroom, the temperature in the bathroom is likely to be too high or too low, resulting in a poor user experience. An air conditioner is installed in the ceiling space of the bathroom. The air conditioner is used to heat or cool the bathroom to adjust the temperature in the bathroom. A ceiling heater is installed in the bathroom to increase the temperature in the bathroom. However, when the temperature in the bathroom is too high, it is unable to effectively reduce the indoor temperature. Summary of the Invention

[0003] In view of this, embodiments of this application are expected to provide an air conditioner.

[0004] To achieve the above object, on the one hand, an embodiment of this application provides an air conditioner, including a housing, a first heat exchanger, a first fan, a second heat exchanger, and a second fan. The housing includes an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet, a first cavity, and a second cavity. The first heat exchanger and the first fan are both disposed in the first cavity, the second heat exchanger and the second fan are both disposed in the second cavity. The indoor air inlet and the indoor air outlet are both communicated with the first cavity, and both the indoor air inlet and the indoor air outlet can be communicated with the indoor. The outdoor air inlet and the outdoor air outlet are both communicated with the second cavity, and both the outdoor air outlet and the outdoor air inlet can be communicated with the outdoor.

[0005] In some embodiments, the housing is disposed in the ceiling space of the indoor, the ceiling space is communicated with the outdoor, and the outdoor air inlet is communicated with the ceiling space.

[0006] In some embodiments, the air conditioner includes an outdoor air inlet pipe, the outdoor air inlet pipe is connected to the outdoor air inlet, and the free end of the outdoor air inlet pipe extends out of the outdoor.

[0007] In some embodiments, the air conditioner includes a return air grille, the return air grille has a plurality of first air vents, and the return air grille covers the air inlet of the outdoor air inlet pipe.

[0008] In some embodiments, the free end of the outdoor air inlet pipe is configured with a first rain shielding structure; the upper part of the free end of the outdoor air inlet pipe protrudes from its lower part to form the first rain shielding structure.

[0009] In some embodiments, the air conditioner includes an exhaust pipe, the exhaust pipe is connected to the outdoor air outlet, and the free end of the exhaust pipe extends out of the outdoor.

[0010] In some embodiments, the air conditioner includes an air discharge grille having a plurality of second air vents, and the air discharge grille covers the air outlet of the air discharge duct.

[0011] In some embodiments, a second rain shielding structure is configured at the free end of the air discharge duct; the upper portion of the free end of the air discharge duct protrudes from its lower portion to form the second rain shielding structure.

[0012] In some embodiments, the air conditioner includes a panel and an air intake duct. The panel is formed with a first opening for communicating with the interior, and the air intake duct communicates the first opening and the indoor air intake port.

[0013] In some embodiments, the air conditioner includes an air blowing duct. The panel is formed with a second opening for communicating with the interior, and the air blowing duct communicates the second opening and the indoor air intake port.

[0014] In some embodiments, the air conditioner includes an air intake passage, a return air passage, a damper, and a return air valve. The air intake passage communicates the indoor air intake port and the interior. The return air passage communicates the outdoor air intake port and the exterior. The housing is formed with a ventilation opening that communicates the air intake passage and the second cavity. The damper is movably disposed at the ventilation opening to open or close the ventilation opening. The return air valve is movably disposed in the return air passage to conduct or cut off the return air passage.

[0015] In some embodiments, the damper is rotatably disposed at the ventilation opening, and the air conditioner includes a first driving mechanism for driving the damper to rotate.

[0016] In some embodiments, a partition is configured in the housing, and the partition divides the space in the housing into independent first and second cavities. The ventilation opening is formed in the partition.

[0017] In some embodiments, the ventilation opening is formed in the housing that encloses the second cavity.

[0018] In some embodiments, the return air valve is rotatably disposed in the return air passage, and the air conditioner includes a second driving mechanism for driving the return air valve to rotate.

[0019] In some embodiments, the air conditioner includes an air discharge passage and an air discharge valve. The air discharge passage communicates the outdoor air discharge port and the exterior. The air discharge valve is movably disposed in the air discharge passage to conduct or cut off the air discharge passage.

[0020] In some embodiments, the exhaust air valve is rotatably disposed in the exhaust air passage, and the air conditioner includes a third driving mechanism for driving the rotation of the exhaust air valve.

[0021] In some embodiments, the air conditioner has a refrigeration mode, a heating mode, an exhaust mode, and a fresh air mode;

[0022] In the refrigeration mode, the air door is in a closed state, the return air valve and the exhaust air valve are both in an open state, the first fan, the first heat exchanger, the second heat exchanger, and the second fan are all in a working state, and the first heat exchanger is an evaporator, and the second heat exchanger is a condenser;

[0023] In the heating mode, the air door is in a closed state, the return air valve and the exhaust air valve are both in an open state, the first fan, the first heat exchanger, the second heat exchanger, and the second fan are all in a working state, and the first heat exchanger is a condenser, and the second heat exchanger is an evaporator;

[0024] In the exhaust mode, the air door and the exhaust air valve are both in an open state; the return air valve is in a closed state, the first fan, the first heat exchanger, and the second heat exchanger are all in a stopped state, and the second fan is in a working state;

[0025] In the fresh air mode, the air door and the return air valve are both in an open state, the exhaust air valve is in a closed state, the second fan, the first heat exchanger, and the second heat exchanger are all in a stopped state, and the first fan is in a working state.

[0026] In some embodiments, the first heat exchanger covers the indoor air inlet; and / or,

[0027] The second heat exchanger covers the outdoor air inlet.

[0028] On the one hand, for the air conditioner provided in the embodiment of the present application, the first heat exchanger, the first fan, the second heat exchanger, and the second fan are all installed in the housing, and the structure of the air conditioner is compact, which can save the installation space and facilitate the overall installation of the air conditioner into a smaller space. On the other hand, the second fan draws air from the outside and discharges it to the outside after heat exchange through the second heat exchanger, and the first fan draws air from the room and blows it into the room after heat exchange through the first heat exchanger. In this way, it is avoided that the second fan draws air from the room, and the heat exchange efficiency of the air conditioner is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of an air conditioner in an embodiment of the present application, wherein the arrows schematically show the flow path of the air flow;

[0030] Figure 2 Schematic diagram of the structure of an air conditioner in another embodiment of the present application, where the arrow schematically shows the flow path of the air flow;

[0031] Figure 3 Schematic diagram of the structure of an air conditioner in yet another embodiment of the present application;

[0032] Figure 4 is Figure 3 Enlarged schematic diagram at position A in

[0033] Figure 5 is Figure 3 Schematic diagram of the structure in a certain mode of the shown structure, where the air conditioner is in the cooling or heating mode, and the arrow schematically shows the flow path of the air flow;

[0034] Figure 6 is Figure 5 Cross-sectional view in the B - B direction in , where the return air duct is in the conducting state;

[0035] Figure 7 is Figure 5 Enlarged schematic diagram at position C in , where the air damper is in the closed state;

[0036] Figure 8 is Figure 3 Schematic diagram of the structure in another mode of the shown structure, where the air conditioner is in the exhaust mode, and the arrow schematically shows the flow path of the air flow;

[0037] Figure 9 is Figure 8 Cross-sectional view in the D - D direction in , where the return air duct is in the cut-off state;

[0038] Figure 10 is Figure 8 Enlarged schematic diagram at position E in , where the air damper is in the open state;

[0039] Figure 11 is Figure 3 Schematic diagram of the structure in yet another mode of the shown structure, where the air conditioner is in the fresh air mode, and the arrow schematically shows the flow path of the air flow;

[0040] Figure 12 Schematic diagram of a part of the structure of an air conditioner in an embodiment of the present application, where the air damper is in the closed state;

[0041] Figure 13 is Figure 12 Another schematic diagram of the shown structure, where the air damper is in the open state;

[0042] Figure 14 Schematic diagram of the structure of an exhaust duct in an embodiment of the present application;

[0043] Figure 15 is Figure 14 a schematic structural view of the structure shown from another perspective.

[0044] Description of the reference numerals in the drawings

[0045] Housing 10; indoor air inlet 10a; indoor air outlet 10b; outdoor air inlet 10c; outdoor air outlet 10d; first cavity 10e; second cavity 10f; ventilation opening 10g; partition 11; first heat exchanger 20; first fan 30; second heat exchanger 40; second fan 50; outdoor air inlet pipe 60; air inlet 60a; return air passage 60b; first rain shielding structure 61; first connecting pipe 62; first joint 63; first straight pipe 64; return air grille 70; first ventilation opening 70a; exhaust pipe 80; exhaust port 80a; exhaust air passage 80b; second rain shielding structure 81; second connecting pipe 82; second joint 83; second straight pipe 84; segmented ring 841; exhaust air grille 90; second ventilation opening 90a; panel 100; air inlet pipe 110; air inlet passage 110a; air blowing pipe 120; air damper 130; return air valve 140; first driving mechanism 150; second driving mechanism 160; exhaust air valve 170; third driving mechanism 180; compressor 190; air inlet hood 200; annular frame 210;

[0046] Ceiling board 1; ceiling space 1a; wall 2; through hole 2a; Detailed implementation manners

[0047] It should be noted that, without conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other. The detailed description in the detailed implementation manners should be understood as an explanatory illustration of the purpose of the present application and should not be regarded as an improper limitation of the present application.

[0048] The orientation or positional relationship in the description of the embodiments of the present application is the orientation or positional relationship when the air conditioner is in normal use. It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0049] Please refer to Figures 1 to 5, an embodiment of the present application provides an air conditioner, which includes a housing 10, a first heat exchanger 20, a first blower 30, a second heat exchanger 40, and a second blower 50. The housing 10 includes an indoor air inlet 10a, an indoor air outlet 10b, an outdoor air inlet 10c, an outdoor air outlet 10d, a first cavity 10e, and a second cavity 10f. The indoor air inlet 10a and the indoor air outlet 10b are both communicated with the first cavity 10e, and both the indoor air inlet 10a and the indoor air outlet 10b can be communicated with the indoor. The outdoor air inlet 10c and the outdoor air outlet 10d are both communicated with the second cavity 10f, and both the outdoor air outlet 10d and the outdoor air inlet 10c can be communicated with the outdoor. The first heat exchanger 20 and the first blower 30 are both arranged in the first cavity 10e. The second heat exchanger 40 and the second blower 50 are both arranged in the second cavity 10f. That is to say, the first cavity 10e and the second cavity 10f are independent of each other, and the first cavity 10e and the second cavity 10f not only are used to accommodate other structures, but also play the role of air ducts. The housing 10 is used to be installed indoors, so that the air conditioner can be arranged indoors.

[0050] In the cooling or heating mode, the first blower 30 drives the air flow to enter the first cavity 10e from the indoor through the indoor air inlet 10a. After heat exchange through the first heat exchanger 20, the air flow is blown back into the indoor through the indoor air outlet 10b to form an internal circulation air path. At the same time, the second blower 50 drives the air flow to enter the second cavity 10f from the outdoor through the outdoor air inlet 10c. After heat exchange through the second heat exchanger 40, the air flow is discharged to the outdoor through the outdoor air outlet 10d to form an external circulation air path. The heat of the indoor air flow and the outdoor air flow is exchanged through the first heat exchanger 20 and the second heat exchanger 40, so as to realize the heating or cooling of the indoor air flow and achieve the purpose of cooling or heating.

[0051] For the air conditioner provided by the embodiment of the present application, on the one hand, the first heat exchanger 20, the first blower 30, the second heat exchanger 40, and the second blower 50 are all installed in the housing 10. The structure of the air conditioner is compact, which can save installation space and is convenient for the overall installation of the air conditioner into a smaller space. On the other hand, the second blower 50 sucks air from the outdoor, exchanges heat through the second heat exchanger 40, and then discharges it to the outdoor. The first blower 30 sucks air from the indoor, exchanges heat through the first heat exchanger 20, and then blows it into the indoor. In this way, the second blower 50 is prevented from sucking air from the indoor, and the heat exchange efficiency of the air conditioner is high.

[0052] In one embodiment, please refer to Figure 5, the air conditioner includes a compressor 190 and a throttling device. The compressor 190, the throttling device, the first heat exchanger 20, and the second heat exchanger 40 together form a heat exchange system, and the refrigerant can flow within the heat exchange system. When the air conditioner is in the cooling or heating mode and both the first heat exchanger 20 and the second heat exchanger 40 are operating, one of the first heat exchanger 20 and the second heat exchanger 40 serves as an evaporator, and the other serves as a condenser. The refrigerant can change from a gaseous state to a liquid state by releasing heat in the condenser and change from a liquid state to a gaseous state by absorbing heat in the evaporator. After heat exchange through the evaporator, the refrigerant is compressed by the compressor 190 into a high-pressure and high-temperature gas. The high-pressure and high-temperature gas is transported through a pipeline to the condenser to release heat and become a medium-temperature and high-pressure liquid, and then the medium-temperature and high-pressure liquid is sent to the throttling device through a pipeline. The throttling device performs throttling and pressure reduction to form a low-temperature and low-pressure gas-liquid mixture, and the low-temperature and low-pressure gas-liquid mixture enters the evaporator for heat exchange again. Through continuous cyclic heat exchange, the heat of the indoor air flow is transferred to the outdoor air flow through the refrigerant, thereby realizing the heating or cooling of the indoor air flow.

[0053] In one embodiment, please refer to Figure 5 , the compressor 190 can also be disposed within the housing 10. For example, the compressor 190 is disposed within the second cavity 10f. In this way, there is no need to separately find an installation location for the compressor 190 indoors, which facilitates the quick installation of the air conditioner.

[0054] In one embodiment, please refer to Figure 5 and Figure 12 , a partition 11 is configured within the housing 10. The partition 11 divides the space within the housing 10 into independent first cavity 10e and second cavity 10f to prevent the air flows within the first cavity 10e and the second cavity 10f from affecting each other. The first cavity 10e and the second cavity 10f function as air ducts, using the internal space of the housing 10 to form air ducts, simplifying the internal structure of the housing 10, facilitating the compact arrangement of heat exchangers (the first heat exchanger 20 and the second heat exchanger 40), fans (the first fan 30 and the second fan 50), etc. within the housing 10, and being able to save production costs and installation processes.

[0055] The structure of the housing 10 is not limited. Exemplarily, in one embodiment, the housing 10 may include a cover plate, an annular plate, and a chassis. The cover plate and the chassis are respectively located on the top and bottom sides of the annular plate, and the cover plate, the chassis, and the annular plate together enclose to form the housing 10. The first heat exchanger 20, the first fan 30, the second heat exchanger 40, the second fan 50, etc. can all be fixed on the chassis, and the chassis is fixed to the ceiling plate 1. That is to say, the chassis can be used for load-bearing.

[0056] The shape of the housing 10 is not limited. Exemplarily, the shape of the housing 10 includes but is not limited to circular, elliptical, or polygonal, such as quadrilateral, etc.

[0057] In one embodiment, please refer to Figure 5 and Figure 12 , the partition 11 and the chassis are integrally formed. In this way, the production and installation processes are further reduced, and the cost is saved.

[0058] The air conditioner provided by the embodiment of the present application can be installed in a small space such as a bathroom, a toilet or a kitchen. Taking the bathroom as an example, a ceiling board 1 is usually provided in the bathroom to divide the indoor space into a ceiling space 1a and a living space. Users carry out daily activities such as washing in the living space. The ceiling space 1a is not only used to beautify the indoor decoration, but also used to install other structures. In one embodiment, please refer to Figure 1 and Figure 2 , the housing 10 is arranged in the ceiling space 1a of the room. In this way, on the one hand, the air conditioner is hidden in the ceiling space 1a, avoiding direct observation by users and improving the visual aesthetics. On the other hand, in the living spaces such as bathrooms and toilets, the humidity is usually high. The ceiling space 1a is independent of the living space, and the water vapor in the living space usually cannot enter the ceiling space 1a. In this way, it is beneficial to isolate water vapor and protect the electronic components in the air conditioner.

[0059] The specific structure of the ceiling board 1 is not limited. Exemplarily, the ceiling board 1 can be formed by splicing a plurality of aluminum gusset plates. In this way, the aluminum gusset plates can be standard parts, with low cost and fast installation.

[0060] The way the outdoor air inlet 10c communicates with the outside is not limited. Exemplarily, in one embodiment, please refer to Figure 1 and Figure 5 , the ceiling space 1a communicates with the outside, and the outdoor air inlet 10c communicates with the ceiling space 1a. For example, a through hole 2a is opened on the wall 2 of the ceiling space 1a to communicate the ceiling space 1a with the outside. That is to say, the outdoor air inlet 10c opens towards the inside of the ceiling space 1a, and the outdoor air flow can enter the ceiling space 1a through the through hole 2a, and then enter the second cavity 10f through the outdoor air inlet 10c. In this way, the air volume entering the outdoor air inlet 10c is larger. On the other hand, no pipeline is provided at the outdoor air inlet 10c to communicate with the outside, which can also save pipelines and has a lower cost.

[0061] In another embodiment, please refer to Figure 2 and Figure 5 , the air conditioner includes an outdoor air inlet pipe 60, the outdoor air inlet pipe 60 is connected to the outdoor air inlet 10c, and the free end of the outdoor air inlet pipe 60 extends to the outside. In this way, the outdoor air inlet pipe 60 is used to direct the outdoor air flow to the outdoor air inlet 10c, and both the air volume loss and the air resistance are small.

[0062] The specific structure of the outdoor air inlet pipe 60 is not limited. Exemplarily, in one embodiment, please refer to Figure 2 , Figure 3 and Figure 5, the outdoor air inlet pipe 60 includes a first connecting pipe 62, a first joint 63, and a first straight pipe 64. The first joint 63 is used to connect the first connecting pipe 62 and the first straight pipe 64. One end of the first connecting pipe 62 away from the first joint 63 is connected to the outdoor air inlet 10c, and the first straight pipe 64 passes through the wall and extends to the outside. For example, the first straight pipe 64 can pass through the through hole 2a of the wall 2 in the suspended ceiling space 1a to extend to the outside.

[0063] The material of the first straight pipe 64 is not limited. Exemplarily, in one embodiment, the first straight pipe 64 is a rigid pipe. In this way, the first straight pipe 64 can maintain its shape to pass through the through hole 2a of the wall 2.

[0064] Due to the requirements of building standards, the thickness of the wall 2 usually has different standards. For example, the thickness of the wall 2 is divided into 500 mm or 300 mm, etc. To meet the thickness requirements of the wall 2, in one embodiment, a shortening section is provided on the first straight pipe 64 so as to quickly change the length of the first straight pipe 64 according to the thickness of the wall 2. Exemplarily, two segmented rings are formed on the first straight pipe 64, and the distance between the two segmented rings is 200 mm. In this way, when the thickness of the wall 2 is 300 mm, the two segmented rings can be cut to quickly shorten the length of the first straight pipe 64 to adapt to the thickness of the wall 2. Preferably, the wall thickness at the location of the segmented ring can also be thinned to facilitate cutting at the construction site. For example, the wall thickness of the segmented ring is thinned by 0.5 mm to 1 mm to facilitate cutting.

[0065] The first connecting pipe 62 can be a corrugated pipe. Usually, the position of the through hole 2a of the wall 2 needs to be set according to the actual housing situation. Therefore, the position of the first straight pipe 64 usually needs to meet the working conditions. The first connecting pipe 62 can be telescoped to adjust the direction and length of the first connecting pipe 62 to meet the setting requirements between the first straight pipe 64 and the housing 10.

[0066] The first connecting pipe 62 can be connected to the outdoor air inlet 10c through a return air hood, and the return air hood covers the periphery of the outdoor air inlet 10c.

[0067] In one embodiment, please refer to Figure 5 and Figure 6 , the air conditioner includes a return air grille 70. The return air grille 70 has a plurality of first ventilation openings 70a, and the return air grille 70 covers the air inlet 60a of the outdoor air inlet pipe 60. On the one hand, outdoor air can enter the outdoor air inlet pipe 60 through the plurality of first ventilation openings 70a. On the other hand, the size of the first ventilation openings 70a is usually small, and objects with larger sizes are difficult to enter the outdoor air inlet pipe 60 through the first ventilation openings 70a. Therefore, the return air grille 70 can prevent animals such as mice and insects, and plants such as leaves from entering the room through the air inlet 60a.

[0068] In one embodiment, please refer toFigure 5 and Figure 6 The free end of the outdoor air inlet pipe 60 is configured with a first rain shielding structure 61. Since the free end of the outdoor air inlet pipe 60 extends to the outside, rainwater may enter the outdoor air inlet pipe 60 in rainy weather. By configuring the first rain shielding structure 61 at the free end of the outdoor air inlet pipe 60, rainwater is prevented from entering the outdoor air inlet pipe 60 to a certain extent.

[0069] In one embodiment, please refer to Figure 5 and Figure 6 , the upper part of the free end of the outdoor air inlet pipe 60 protrudes above its lower part to form the first rain shielding structure 61, and the air inlet 60a is formed at the lower part of the free end of the outdoor air inlet pipe 60. That is to say, the projection of the upper part of the free end of the outdoor air inlet pipe 60 covers the projection of the lower part of the free end of the outdoor air inlet pipe 60. In this way, when it rains, the upper part of the free end of the outdoor air inlet pipe 60 can block rainwater and prevent rainwater from directly falling into the air inlet 60a, thus preventing rainwater from entering the outdoor air inlet pipe 60 to a certain extent.

[0070] In another embodiment, a first rain shielding plate may also be provided at the free end of the outdoor air inlet pipe 60, and the first rain shielding plate protrudes from the free end of the outdoor air inlet pipe 60. In this way, when it rains, the first rain shielding plate can block rainwater and prevent rainwater from directly falling into the air inlet 60a, thus preventing rainwater from entering the outdoor air inlet pipe 60 to a certain extent.

[0071] In one embodiment, please refer to Figure 2 and Figure 3 , the air conditioner includes an exhaust pipe 80, the exhaust pipe 80 is connected to the outdoor exhaust port 10d, and the free end of the exhaust pipe 80 extends to the outside. In this way, the exhaust pipe 80 is used to direct the air flow to the outside, and both the air volume loss and the air resistance are small.

[0072] The specific structure of the exhaust pipe 80 is not limited. Exemplarily, in one embodiment, please refer to Figure 3 and Figure 5 , the exhaust pipe 80 includes a second connecting pipe 82, a second joint 83 and a second straight pipe 84. The second joint 83 is used to connect the second connecting pipe 82 and the second straight pipe 84. One end of the second connecting pipe 82 away from the second joint 83 is connected to the outdoor exhaust port 10d, and the second straight pipe 84 passes through the wall and extends to the outside. For example, the second straight pipe 84 can pass through the through hole of the wall 2 in the ceiling space 1a to extend to the outside.

[0073] The material of the second straight pipe 84 is not limited. Exemplarily, in one embodiment, the second straight pipe 84 is a rigid pipe, so that the second straight pipe 84 can maintain its shape to pass through the through hole 2a of the wall 2.

[0074] Since, according to building standards, the thickness of wall 2 usually has different standards. For example, the thickness of wall 2 is divided into 500 mm, 300 mm, etc. To meet the thickness requirements of wall 2, in one embodiment, please refer to Figure 14 and Figure 15 , a reduced section is provided on the second straight pipe 84 so as to quickly change the length of the second straight pipe 84 according to the thickness of wall 2. Exemplarily, two segmented rings 841 are formed on the second straight pipe 84. In this way, when the thickness of wall 2 is 300 mm, the segmented rings 841 can be cut to quickly shorten the length of the second straight pipe 84 to adapt to the thickness of wall 2. Preferably, the wall thickness at the location of the segmented rings 841 can also be thinned to facilitate cutting at the construction site. For example, the wall thickness of the segmented rings 841 is thinned by 0.5 mm to 1 mm to facilitate cutting.

[0075] The second connecting pipe 82 can be a corrugated pipe. Usually, the position of the through hole 2a of wall 2 needs to be set according to the actual housing conditions. Therefore, the position of the second straight pipe 84 usually needs to meet the working conditions. The second connecting pipe 82 can be telescoped so as to adjust the direction and length of the second connecting pipe 82 to meet the setting requirements between the second straight pipe 84 and the housing 10.

[0076] The second connecting pipe 82 can be connected to the outdoor air inlet 10c through an exhaust hood, and the exhaust hood is arranged around the outdoor exhaust port 10d.

[0077] In one embodiment, please refer to Figures 5 to 11 , the air conditioner includes an air discharge grille 90 which has a plurality of second ventilation openings 90a, and the air discharge grille 90 covers the exhaust port 80a of the exhaust duct 80. On the one hand, the air flow can be discharged to the outside through the plurality of second ventilation openings 90a. On the other hand, the size of the second ventilation openings 90a is usually small, and objects with a larger size are difficult to enter the exhaust duct 80 through the second ventilation openings 90a. Therefore, the air discharge grille 90 can prevent animals such as mice and insects, and plants such as leaves from entering the room through the exhaust port 80a.

[0078] In one embodiment, please refer to Figure 3 and Figure 15 , a second rain shielding structure 81 is configured at the free end of the exhaust duct 80. Since the free end of the exhaust duct 80 extends to the outside, in rainy weather or the like, rainwater may enter the exhaust duct 80. By configuring the second rain shielding structure 81 at the free end of the exhaust duct 80, rainwater entering the exhaust duct 80 can be avoided to a certain extent.

[0079] In one embodiment, please refer to Figure 15, the upper part of the free end of the exhaust duct 80 protrudes above its lower part to form a second rain shielding structure 81, and the exhaust port 80a is formed at the lower part of the free end of the exhaust duct 80. That is to say, the projection of the upper part of the free end of the exhaust duct 80 covers the projection of the lower part of the free end of the exhaust duct 80. In this way, when it rains, the upper part of the free end of the exhaust duct 80 can block rainwater and prevent rainwater from directly falling into the exhaust port 80a, and to a certain extent, prevent rainwater from entering the exhaust duct 80.

[0080] In another embodiment, a second rain shielding plate can also be provided at the free end of the exhaust duct 80, and the second rain shielding plate protrudes from the free end of the exhaust duct 80. In this way, when it rains, the second rain shielding plate can block rainwater and prevent rainwater from directly falling into the exhaust port 80a, and to a certain extent, prevent rainwater from entering the exhaust duct 80.

[0081] In one embodiment, please refer to Figures 1 to 5 , the air conditioner includes a panel 100 and an air inlet duct 110. The panel 100 is formed with a first opening for communicating with the interior. The air inlet duct 110 communicates the first opening and the indoor air inlet 10a. Both the panel 100 and the air inlet duct 110 are located indoors, for example, in the ceiling space 1a. The air inlet duct 110 facilitates guiding the indoor air flow from the first opening to the indoor air inlet 10a. The panel 100 facilitates fixing the end of the air inlet duct 110 connected to the first opening to a set position. For example, during assembly, the panel 100 and the air inlet duct 110 can be pre-assembled first, and then the panel 100 can be assembled to the set position. In this way, the on-site installation process and time can be reduced.

[0082] The material of the air inlet duct 110 is not limited. Exemplarily, in one embodiment, the air inlet duct 110 can be a corrugated pipe. The air inlet duct 110 can be telescopic and change direction, which is convenient for connecting the housing 10 and the panel 100. In this way, the housing 10 and the panel 100 can be flexibly arranged according to requirements, which is not only convenient for flexible assembly of the air conditioner, but also convenient for sucking indoor air flow from a suitable position.

[0083] The air inlet duct 110 can be connected to the indoor air inlet 10a through an air inlet hood 200, and the air inlet hood 200 covers the periphery of the indoor air inlet 10a.

[0084] The material of the panel 100 is not limited. Exemplarily, in one embodiment, please refer to Figure 1 and Figure 2 , the panel 100 is an aluminum gusset plate. On the one hand, the panel 100 is a rigid plate that is convenient for maintaining its shape. Fixing the air inlet duct 110 to the panel 100 makes it easier to control the position and direction of the air flow blown out, etc. On the other hand, an area can be reserved on the ceiling board 1. When it is necessary to assemble the air conditioner, the air conditioner is assembled into the ceiling space 1a through the gap between the keels, and then the panel 100 is fixed to the reserved area. In this way, the air conditioner can be assembled quickly and conveniently, and it is also convenient to keep the appearance clean and beautiful.

[0085] In one embodiment, please refer to Figures 1 to 3 , the air conditioner includes a blowing duct 120. The panel 100 is formed with a second opening for communicating with the interior. The blowing duct 120 communicates the second opening and the indoor air inlet 10a. The blowing duct 120 is located indoors, for example, in the ceiling space 1a. The blowing duct 120 facilitates guiding the air flow after being heat-exchanged by the first heat exchanger 20 from the indoor air outlet 10b to the second opening, and then entering the interior. By arranging the blowing duct 120 on the panel 100, the panel 100 and the blowing duct 120 can be pre-assembled, so that the on-site installation process and time can be reduced.

[0086] The material of the blowing duct 120 is not limited. Exemplarily, in one embodiment, the blowing duct 120 can be a corrugated pipe. The blowing duct 120 can be telescopic and change direction, which is convenient for connecting the housing 10 and the panel 100. In this way, the housing 10 and the panel 100 can be flexibly set according to requirements, which is not only convenient for flexible assembly of the air conditioner, but also convenient for guiding the air flow to a set position that meets the user's needs.

[0087] The blowing duct 120 can be connected to the indoor air outlet 10b through a blowing hood, and the blowing hood covers the periphery of the indoor air outlet 10b.

[0088] In one embodiment, please refer to Figures 5 to 11 , the air conditioner includes an air inlet passage 110a, a return air passage 60b, a damper 130, and a return air valve 140. The air inlet passage 110a communicates the indoor air inlet 10a and the interior. The return air passage 60b communicates the outdoor air inlet 10c and the outdoors. The housing 10 is formed with a ventilation opening 10g, and the ventilation opening 10g communicates the air inlet passage 110a and the second cavity 10f. The damper 130 is movably arranged at the ventilation opening 10g to open or close the ventilation opening 10g. The return air valve 140 is movably arranged in the return air passage 60b to conduct or cut off the return air passage 60b. For example, the space in the air inlet pipe 110 is the air inlet passage 110a, and the space in the outdoor air inlet pipe 60 is the return air passage 60b. In this way, the air conditioner can not only achieve the heat exchange function, but also achieve the exhaust function, which is specifically described as follows:

[0089] In the cooling mode or the heating mode, please refer to Figures 5 to 7, close the air damper 130 to keep the vent 10g in a closed state; open the return air valve 140 to keep the return air passage 60b in a conducting state. The first fan 30, the compressor 190, the first heat exchanger 20, the second heat exchanger 40, and the second fan 50 are all in working states. Outdoor air flows into the second cavity 10f through the return air passage 60b and the outdoor air inlet 10c, and the air after heat exchange through the second heat exchanger 40 is discharged outdoors through the outdoor air outlet 10d; indoor air flows into the first cavity 10e through the air inlet passage 110a and the indoor air inlet 10a, and the air after heat exchange through the first heat exchanger 20 is blown into the room through the indoor air outlet 10b.

[0090] In the exhaust mode, please refer to Figures 8 to 10 , open the air damper 130 to keep the vent 10g in an open state; close the return air valve 140 to keep the return air passage 60b in a cut-off state. The first fan 30, the compressor 190, the first heat exchanger 20, and the second heat exchanger 40 are all in stopped states, and the second fan 50 is in a working state. Under the action of the second fan 50, a negative pressure is formed in the second cavity 10f. Indoor air flows into the second cavity 10f through the air inlet passage 110a and the vent 10g. Part of the indoor air can also enter the vent 10g along the indoor air outlet 10b and the first cavity 10e, and then be discharged outdoors through the outdoor air outlet 10d.

[0091] In this way, the air conditioner is more suitable for special application environments with small space and high humidity, such as bathrooms or toilets.

[0092] In one embodiment, please refer to Figure 3 , Figure 4 , Figure 7 , Figure 12 and Figure 13 , the air damper 130 is rotatably arranged at the vent 10g. The air conditioner includes a first driving mechanism 150 for driving the air damper 130 to rotate. In the rotation direction of the air damper 130, the air damper 130 can open or close the vent 10g.

[0093] In one embodiment, please refer to Figure 12 and Figure 13, a partition 11 is disposed inside the housing 10. The partition 11 divides the space inside the housing 10 into an independent first cavity 10e and a second cavity 10f. A ventilation opening 10g is formed on the partition 11. For example, a damper 130 is rotatably disposed on the partition 11. The damper 130 can block the ventilation opening 10g to close the ventilation opening 10g; the damper 130 can avoid the ventilation opening 10g to open the ventilation opening 10g. Specifically, the ventilation opening 10g communicates the first cavity 10e and the second cavity 10f. In the exhaust mode, the indoor air entering from the air inlet passage 110a first passes through the first cavity 10e, then enters the second cavity 10f through the ventilation hole 10g, and is discharged outdoors from the exhaust passage 80b.

[0094] In another embodiment, the ventilation opening 10g is opened on the housing 10 that encloses the second cavity 10f. For example, the ventilation opening 10g and the indoor air inlet 10a are opened on the same side wall of the housing 10. An air inlet cover 200 is covered on the side wall so that both the ventilation opening 10g and the indoor air inlet 10a are located inside the air inlet cover 200. The space enclosed by the air inlet cover 200 and the side wall and the air inlet pipe 110 together form the air inlet passage 110a. The first heat exchanger 20 is disposed at the indoor air inlet 10a and blocks the air inlet passage 110a. The ventilation opening 10g directly communicates the second cavity 10f and the air inlet passage 110a. Since the ventilation opening 10g is opened on the housing 10 corresponding to the second cavity 10f, in the exhaust mode, the first fan 30 is closed, the second fan 50 is turned on, the compressor 190 is closed, and the damper 130 is opened. The indoor air entering from the air inlet passage 110a can enter the second cavity 10f unobstructed through the ventilation hole 10g and is discharged outdoors from the exhaust passage 80b, reducing the wind resistance.

[0095] In a specific embodiment, the ventilation opening 10g is formed on an annular shell. The damper 130 is rotatably disposed on the annular shell. The damper 130 can block the ventilation opening 10g to close the ventilation opening 10g; the damper 130 can avoid the ventilation opening 10g to open the ventilation opening 10g.

[0096] In another specific embodiment, please refer to Figure 4 , Figure 7 and Figure 10 , the ventilation opening 10g is formed on an annular shell. The damper 130 is rotatably disposed on the air inlet cover 200. The damper 130 can block the connection between the ventilation opening 10g and the air inlet passage 110a to close the ventilation opening 10g. The damper 130 can avoid the air inlet passage 110a to open the ventilation opening 10g.

[0097] The first driving mechanism 150 can be a motor, such as a stepper motor. Thus, the first driving mechanism 150 can drive the damper 130 to rotate according to the first electrical signal, improving the degree of automation.

[0098] For better closing of the ventilation opening 10g, exemplarily, in one embodiment, please refer to Figure 4 , the air conditioner includes an annular frame 210 and a sealing rib. The annular frame 210 surrounds the outer periphery of the ventilation opening 10g, and the sealing rib is sleeved on the outer periphery of the air damper 130. When the air damper 130 is in the closed state, the sealing rib is clamped between the air damper 130 and the annular frame 210. The annular frame 210 can strengthen the structural strength at the ventilation opening 10g. The sealing rib is used to seal and close the ventilation opening 10g to avoid a gap between the air damper 130 and the ventilation opening 10g.

[0099] In one embodiment, please refer to Figures 5 to 9 , the return air valve 140 is rotatably arranged in the return air passage 60b. The air conditioner includes a second driving mechanism 160, and the second driving mechanism 160 is used to drive the return air valve 140 to rotate. In the rotation direction of the return air valve 140, the return air valve 140 can conduct or cut off the return air passage 60b.

[0100] In one embodiment, please refer to Figures 5 to 9 , both the return air valve 140 and the second driving mechanism 160 are arranged at the first joint 63. For example, both the return air valve 140 and the second driving mechanism 160 can be fixed on the pipe wall of the first joint 63. On the one hand, the first joint 63 has good strength and can support the return air valve 140 and the second driving mechanism 160. On the other hand, it is convenient for the operator to assemble the return air valve 140 into the first joint 63 and then connect the first connecting pipe 62 and the first straight pipe 64 through the first joint 63.

[0101] The type of the return air valve 140 is not limited. Exemplarily, in one embodiment, the return air valve 140 is a check valve. That is to say, the return air valve 140 is used to control the unidirectional flow of outdoor air into the second cavity 10f.

[0102] The second driving mechanism 160 can be a motor, such as a stepper motor. In this way, the second driving mechanism 160 can drive the air damper 130 to rotate according to the second electrical signal, improving the degree of automation.

[0103] In one embodiment, please refer to Figure 11 , the air conditioner includes an exhaust passage 80b and an exhaust valve 170. The exhaust passage 80b communicates with the outdoor exhaust port 10d and the outside. The exhaust valve 170 is movably arranged in the exhaust passage 80b to conduct or cut off the exhaust passage 80b. For example, the space in the exhaust pipe 80 is the exhaust passage 80b. Such a design enables the air conditioner to realize the fresh air function.

[0104] In one embodiment, the air conditioner has a cooling mode, a heating mode, an exhaust mode, and a fresh air mode.

[0105] Please refer to Figure 5, in the refrigeration mode, the air damper 130 is in the closed state, the return air valve 140 and the exhaust air valve 170 are both in the open state, the first blower 30, the first heat exchanger 20, the second heat exchanger 40 and the second blower 50 are all in the working state, and the first heat exchanger 20 is an evaporator and the second heat exchanger 40 is a condenser;

[0106] Please refer to Figure 5 , in the heating mode, the air damper 130 is in the closed state, the return air valve 140 and the exhaust air valve 170 are both in the open state, the first blower 30, the first heat exchanger 20, the second heat exchanger 40 and the second blower 50 are all in the working state, and the first heat exchanger 20 is a condenser and the second heat exchanger 40 is an evaporator;

[0107] Please refer to Figure 8 , in the exhaust mode, the air damper 130 and the exhaust air valve 170 are both in the open state; the return air valve 140 is in the closed state, the first blower 30, the first heat exchanger 20 and the second heat exchanger 40 are all in the stopped state, and the second blower 50 is in the working state;

[0108] Please refer to Figure 11 , in the fresh air mode, the air damper 130 and the return air valve 140 are both in the open state, the exhaust air valve 170 is in the closed state, the second blower 50, the first heat exchanger 20 and the second heat exchanger 40 are all in the stopped state, and the first blower 30 is in the working state.

[0109] In this way, the air conditioner can achieve multiple modes to meet the user's needs.

[0110] In the fresh air mode, please refer to Figure 11 , open the air damper 130 to make the ventilation opening 10g in the open state; open the return air valve 140 to make the return air passage 60b in the conducting state; close the exhaust air valve 170 to make the exhaust air passage 80b in the cut-off state, the second blower 50, the compressor 190, the first heat exchanger 20 and the second heat exchanger 40 are all in the stopped state, and the first blower 30 is in the working state. Under the action of the first blower 30, a negative pressure is formed in the first cavity 10e, and the outdoor air flow enters the second cavity 10f through the return air passage 60b and the outdoor air inlet 10c, flows through the ventilation opening 10g and the air inlet passage 110a into the first cavity 10e, and enters the room through the indoor air outlet 10b. In other embodiments, in the fresh air mode, it can also be: open the air damper 130 to make the ventilation opening 10g in the open state; open the return air valve 140 to make the return air passage 60b in the conducting state; open the exhaust air valve 170 to make the exhaust air passage 80b in the conducting state, the second blower 50 is in the stopped state, and the compressor 190, the first heat exchanger 20, the second heat exchanger 40 and the first blower 30 are all in the working state.

[0111] In one embodiment, please refer toFigure 11 and Figure 14 The exhaust air valve 170 is rotatably disposed in the exhaust air passage 80b. The air conditioner includes a third driving mechanism 180 for driving the exhaust air valve 170 to rotate. In the rotation direction of the exhaust air valve 170, the exhaust air valve 170 can conduct or cut off the exhaust air passage 80b.

[0112] In one embodiment, please refer to Figure 11 and Figure 14 Both the exhaust air valve 170 and the third driving mechanism 180 are disposed at the second joint 83. For example, both the exhaust air valve 170 and the third driving mechanism 180 are fixed to the pipe wall of the second joint 83. On the one hand, the second joint 83 has good strength and can support the exhaust air valve 170 and the third driving mechanism 180. On the other hand, it is convenient for the operator to assemble the exhaust air valve 170 into the second joint 83 and then connect the second connecting pipe 82 and the second straight pipe 84 through the second joint 83.

[0113] The type of the exhaust air valve 170 is not limited. Exemplarily, in one embodiment, the exhaust air valve 170 is a check valve. That is to say, the exhaust air valve 170 is used to control the unidirectional outflow of the outdoor air from the second cavity 10f.

[0114] The third driving mechanism 180 can be a motor, such as a stepper motor. In this way, the third driving mechanism 180 can drive the air damper 130 to rotate according to the third electrical signal, improving the degree of automation.

[0115] In one embodiment, please refer to Figure 5 、 Figure 8 and Figure 11 The indoor air inlet 10a, the indoor air outlet 10b, the outdoor air inlet 10c, and the outdoor air outlet 10d are all formed on the circumferential surface of the housing 10. For example, the indoor air inlet 10a, the indoor air outlet 10b, the outdoor air inlet 10c, and the outdoor air outlet 10d are all formed on the annular housing. In this way, it is convenient to arrange pipelines. For example, it is convenient to arrange the outdoor air inlet pipe 60, the air inlet pipe 110, the air blowing pipe 120, and the exhaust pipe 80, etc. in the ceiling space 1a.

[0116] In one embodiment, please refer to Figure 5 、 Figure 8 and Figure 11 The first heat exchanger 20 covers the indoor air inlet 10a. In this way, the air flow from the indoor air inlet 10a all passes through the first heat exchanger 20 for heat exchange and then enters the first cavity 10e.

[0117] In one embodiment, please refer to Figure 5 、 Figure 8 and Figure 11, the second heat exchanger 40 covers the outdoor air inlet 10c. In this way, the air flow from the indoor air inlet 10a passes through the second heat exchanger 40 for heat exchange and then enters the second cavity 10f.

[0118] The specific structure of the first fan 30 is not limited. Exemplarily, in one embodiment, please refer to Figures 11 to 13 , the first fan 30 includes a first volute and a first impeller located inside the first volute. A first inlet communicating with the first cavity 10e is formed on the axial plane of the first volute, and a first outlet is formed on the circumferential surface of the first volute. The first outlet is located at the indoor air outlet 10b, and the first outlet is communicated with the air blowing pipe 120. The axial plane of the first volute abuts against the inner bottom surface of the housing 10, such as the chassis. In this way, the first volute is horizontally arranged on the chassis.

[0119] In one embodiment, please refer to Figures 11 to 13 , the partition 11 is part of the first volute. In this way, the rib structure inside the housing 10 is further reduced, making the space inside the housing 10 more compact, so as to further reduce the size of the housing 10, so that the air conditioner can be assembled into the ceiling space 1a.

[0120] The specific structure of the second fan 50 is not limited. Exemplarily, in one embodiment, please refer to Figures 11 to 13 , the second fan 50 includes a second volute and a second impeller located inside the second volute. Second inlets communicating with the second cavity 10f are formed on both axial planes of the second volute, and a second outlet is formed on the circumferential surface of the second volute. The second outlet is located at the outdoor air outlet 10d, and the second outlet is communicated with the exhaust pipe 80. The circumferential surface of the second volute abuts against the inner bottom surface of the housing 10, such as the chassis. That is to say, the second volute is vertically arranged on the chassis. In this way, it is convenient for the two second inlets to intake air and improve the air intake volume.

[0121] The various embodiments / implementations provided in this application can be combined with each other without contradiction.

[0122] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. An air conditioner, characterized in that, It includes a housing, a first heat exchanger, a first blower, a second heat exchanger and a second blower. The housing includes an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet, a first cavity and a second cavity. The first heat exchanger and the first blower are both arranged in the first cavity, and the second heat exchanger and the second blower are both arranged in the second cavity. The indoor air inlet and the indoor air outlet are both communicated with the first cavity, and both the indoor air inlet and the indoor air outlet can be communicated with the interior of the room. The outdoor air inlet and the outdoor air outlet are both communicated with the second cavity, and both the outdoor air outlet and the outdoor air inlet can be communicated with the exterior of the room. The air conditioner includes an air inlet passage, a return air passage, a damper and a return air valve. The air inlet passage communicates the indoor air inlet with the interior of the room, and the return air passage communicates the outdoor air inlet with the exterior of the room. The housing forms a ventilation opening which communicates the air inlet passage with the second cavity. The damper is movably arranged at the ventilation opening to open or close the ventilation opening, and the return air valve is movably arranged in the return air passage to conduct or cut off the return air passage. The ventilation opening is opened on the housing that encloses the second cavity and is on the same side wall of the housing as the indoor air inlet. An air inlet cover is sleeved on the side wall so that both the ventilation opening and the indoor air inlet are located inside the air inlet cover. The space enclosed by the air inlet cover and the side wall and the air inlet pipe together form the air inlet passage.

2. The air conditioner according to claim 1, characterized in that, The housing is arranged in the ceiling space of the room, and the ceiling space is communicated with the exterior of the room. The outdoor air inlet is communicated with the ceiling space.

3. The air conditioner according to claim 1, characterized in that The air conditioner includes an outdoor air inlet pipe which is connected to the outdoor air inlet, and the free end of the outdoor air inlet pipe extends to the exterior of the room.

4. The air conditioner according to claim 3, characterized in that, The air conditioner includes a return air grille which has a plurality of first ventilation openings, and the return air grille covers the air inlet of the outdoor air inlet pipe.

5. The air conditioner according to claim 3, characterized in that, The free end of the outdoor air inlet pipe is configured with a first rain shielding structure; the upper part of the free end of the outdoor air inlet pipe protrudes from its lower part to form the first rain shielding structure.

6. The air conditioner according to claim 1, characterized in that The air conditioner includes an exhaust pipe which is connected to the outdoor air outlet, and the free end of the exhaust pipe extends to the exterior of the room.

7. The air conditioner according to claim 6, characterized in that, The air conditioner includes an exhaust grille which has a plurality of second ventilation openings, and the exhaust grille covers the air outlet of the exhaust pipe.

8. The air conditioner according to claim 6, characterized in that, The free end of the exhaust pipe is configured with a second rain shielding structure; the upper part of the free end of the exhaust pipe protrudes from its lower part to form the second rain shielding structure.

9. The air conditioner according to claim 1, characterized in that, The air conditioner includes a panel and an air inlet pipe. The panel forms a first opening for communicating with the interior of the room, and the air inlet pipe communicates the first opening with the indoor air inlet.

10. The air conditioner according to claim 9, characterized in that, The air conditioner includes a blowing pipe. The panel forms a second opening for communicating with the interior of the room, and the blowing pipe communicates the second opening with the indoor air outlet.

11. The air conditioner according to claim 1, wherein The damper is rotatably arranged at the ventilation opening, and the air conditioner includes a first driving mechanism which is used to drive the damper to rotate.

12. The air conditioner according to claim 1, characterized in that, A partition is disposed inside the housing, and the partition divides the space inside the housing into the independent first cavity and the second cavity.

13. The air conditioner according to claim 1, characterized in that, The return air valve is rotatably disposed in the return air passage, and the air conditioner includes a second driving mechanism for driving the return air valve to rotate.

14. The air conditioner according to claim 1, characterized in that, The air conditioner includes an exhaust air passage and an exhaust air valve. The exhaust air passage communicates with the outdoor exhaust air outlet and the outside, and the exhaust air valve is movably disposed in the exhaust air passage to conduct or cut off the exhaust air passage.

15. The air conditioner according to claim 14, characterized in that, The exhaust air valve is rotatably disposed in the exhaust air passage, and the air conditioner includes a third driving mechanism for driving the exhaust air valve to rotate.

16. The air conditioner according to claim 14, characterized in that, The air conditioner has a cooling mode, a heating mode, an exhaust mode, and a fresh air mode; In the cooling mode, the air door is in a closed state, the return air valve and the exhaust air valve are both in an open state, the first blower, the first heat exchanger, the second heat exchanger, and the second blower are all in a working state, and the first heat exchanger is an evaporator and the second heat exchanger is a condenser; In the heating mode, the air door is in a closed state, the return air valve and the exhaust air valve are both in an open state, the first blower, the first heat exchanger, the second heat exchanger, and the second blower are all in a working state, and the first heat exchanger is a condenser and the second heat exchanger is an evaporator; In the exhaust mode, the air door and the exhaust air valve are both in an open state; the return air valve is in a closed state, the first blower, the first heat exchanger, and the second heat exchanger are all in a stopped state, and the second blower is in a working state; In the fresh air mode, the air door and the return air valve are both in an open state, the exhaust air valve is in a closed state, the second blower, the first heat exchanger, and the second heat exchanger are all in a stopped state, and the first blower is in a working state.

17. The air conditioner according to any one of claims 1 to 16, characterized in that, The first heat exchanger covers the indoor air inlet; and / or The second heat exchanger covers the outdoor air inlet.

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