Mobile air conditioner

Abstract

The mobile air conditioner comprises a machine shell, an air duct system, a refrigerating system and a heating system, the air duct system, the refrigerating system and the heating system are arranged in the machine shell, the air duct system comprises an air inlet, a first air outlet and a first fan, and the air inlet and the first air outlet are formed in the machine shell; the first fan is arranged between the air inlet and the first air outlet; the refrigerating system comprises a refrigerant pipeline, a compressor, an electromagnetic valve, a first condenser, a second condenser and an evaporator, the compressor, the electromagnetic valve, the first condenser, the second condenser and the evaporator are sequentially connected to the refrigerant pipeline in series, the evaporator and the second condenser are both in an arc face shape, and the evaporator and the second condenser are arranged around the first fan and are opposite to the first air outlet. On the basis that the heating function, the refrigerating function and the non-cooling dehumidification function can be achieved, the second condenser and the evaporator are designed to be arc-shaped, so that the structural design is reasonable, the layout is compact, and the space is saved.

Description

Technical Field

[0001] This application relates to the technical field of mobile air conditioners, and particularly to a mobile air conditioner. Background Art

[0002] Currently, household and commercial air conditioners are usually divided into single-cooling and cooling-and-heating types. During the refrigeration operation, the air conditioner can cool or dehumidify the indoor environment, and during the heating operation, it can warm the indoor environment. When the air conditioner is dehumidifying, sometimes people need dehumidification without cooling, such as in rainy and humid weather or in other projects where heating and dehumidification are required. Moreover, due to the straight plate shape of the condenser and evaporator and the circular shape of the fan, the air duct is not smooth, affecting the use effect.

[0003] For example, the Chinese utility model patent with the publication number CN2653353Y discloses an integrated mobile air conditioner, which includes an evaporator, a compressor, and a condenser connected in series through pipelines in sequence. It also includes an auxiliary heat exchanger to achieve the functions of refrigeration or dehumidification without cooling, but it does not have a heating function and does not involve the specific structure of a mobile air conditioner. Utility Model Content

[0004] The purpose of the embodiment of this application is to provide a mobile air conditioner, which includes a casing and an air duct system, a refrigeration system, and a heating system arranged inside the casing. The air duct system includes an air inlet, a first air outlet, and a first fan. The air inlet and the first air outlet are respectively arranged on the casing, and the first fan is arranged between the air inlet and the first air outlet;

[0005] The refrigeration system includes a refrigerant pipeline and a compressor, a solenoid valve, a first condenser, a second condenser, and an evaporator connected in series on the refrigerant pipeline in sequence. The shapes of the evaporator and the second condenser are both arc-shaped, and they are arranged around the first fan and opposite to the first air outlet;

[0006] The heating system includes a heating element, and the heating element is arranged between the second condenser and the first fan;

[0007] Wherein, indoor air enters from the air inlet under the action of the first fan, is cooled by the evaporator to become cold air, and is discharged into the room through the first air outlet;

[0008] Or, indoor air enters from the air inlet under the action of the first fan, is heated by the heating element to become hot air, and is discharged into the room through the first air outlet;

[0009] Alternatively, indoor air enters through the air inlet under the action of the first fan, is cooled and condensed into moisture by the evaporator, then heated by the second condenser to become dry air, and is discharged into the room through the first air outlet. Through the air duct system, refrigeration system and heating system, this application can achieve refrigeration, heating, and dehumidification without cooling functions, meeting the requirements of different seasons and environments.

[0010] As an alternative embodiment, the air duct system further includes a second air outlet and a second fan. The second air outlet is provided on the housing and is located below the air inlet, and the second fan is provided inside the housing and is opposite to the second air outlet.

[0011] Among them, indoor air enters through the air inlet under the action of the second fan to cool the first condenser, and is discharged into the room through the second air outlet. The addition of the second air outlet and the second fan in this application helps to improve the air circulation efficiency and refrigeration effect.

[0012] As an alternative embodiment, the mobile air conditioner further includes a water tank and a water curtain. The water tank is provided inside the housing and is opposite to the compressor, and the water curtain is provided outside the first condenser. The water curtain is connected to the water tank through a pipeline so that the water in the water tank is conveyed to the water curtain to cool the first condenser.

[0013] Among them, indoor air enters through the air inlet under the action of the second fan, becomes cold air after absorbing heat from the water curtain, cools the first condenser, and is discharged into the room through the second air outlet. Through the setting of the water tank and the water curtain, this application provides an additional cooling means to reduce the temperature of the first condenser through the evaporation of the water curtain to enhance the refrigeration effect.

[0014] As an alternative embodiment, a spraying device connected to the water tank is provided in the first air outlet. The spraying device is used to humidify the gas discharged into the room from the first air outlet. This application provides a humidification function to improve the indoor air quality, especially in a dry environment, which helps to enhance the comfort of users.

[0015] As an alternative embodiment, a rotatable sweeping fan blade is provided in the first air outlet. The sweeping fan blade is used to adjust the direction of the gas discharged into the room from the first air outlet. This application provides a function of adjusting the wind direction, and users can adjust the direction of the air conditioner wind according to their needs, improving the flexibility and comfort of use.

[0016] As an alternative embodiment, the mobile air conditioner further includes a water receiving tank disposed below the evaporator and communicating with the water tank, for receiving the condensed water on the outer wall of the evaporator and conveying it into the water tank. In this application, the water receiving tank receives the condensed water on the outer wall of the evaporator and conveys it into the water tank for collection and reuse, which helps to save water resources and reduce water waste.

[0017] As an alternative embodiment, the first fan is disposed near the first air outlet, and a wind guiding cover is provided inside the housing, and the wind guiding cover is used to guide the gas introduced by the first fan to the first air outlet. Through the design of the wind guiding cover in this application, the air flow path is optimized, the air conditioning efficiency is improved, and it is ensured that cold air or hot air is more effectively distributed into the indoor space.

[0018] As an alternative embodiment, the refrigerant pipeline includes a main pipe, a first branch pipe, a second branch pipe, a third branch pipe, and a recovery pipe. The first branch pipe penetrates through the first condenser, the second branch pipe penetrates through the second condenser, and the third branch pipe penetrates through the evaporator.

[0019] One end of the main pipe is connected to the outlet of the compressor, the other end of the main pipe is connected to the inlet of the solenoid valve, the first outlet of the solenoid valve is connected to one end of the first branch pipe, the other end of the first branch pipe is connected to one end of the third branch pipe, the second outlet of the solenoid valve is connected to one end of the second branch pipe, the other end of the second branch pipe is connected to one end of the third branch pipe, the other end of the third branch pipe is connected to one end of the recovery pipe, and the other end of the recovery pipe is connected to the inlet of the compressor. The layout of the refrigerant pipeline in this application is reasonable, which helps to improve the overall performance of the air conditioner.

[0020] As an alternative embodiment, a capillary tube is provided at the end of the third branch pipe away from the recovery pipe, and the other end of the capillary tube is respectively connected to the other ends of the first branch pipe and the second branch pipe. Through the design of the capillary tube in this application, it helps to control the flow rate of the refrigerant, thereby improving the stability and efficiency of the system.

[0021] The beneficial effects of the embodiments of this application are as follows:

[0022] On the basis of being able to achieve the heating function, the cooling function, and the dehumidification function without temperature reduction, by designing the second condenser and the evaporator in an arc shape in this application, the structural design is reasonable, the layout is compact, and space is saved. Moreover, the arrangement positions of the second condenser and the evaporator cooperate with the first fan to form a streamline air duct, with smooth air inlet and outlet and high heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the mobile air conditioner according to the embodiment of this application;

[0024] Figure 2 Top view of the mobile air conditioner according to an embodiment of the present application;

[0025] Figure 3 Schematic diagram of the refrigeration state of the mobile air conditioner according to an embodiment of the present application;

[0026] Figure 4 Schematic diagram of the dehumidification state of the mobile air conditioner according to an embodiment of the present application;

[0027] Figure 5 Schematic diagram of the heating state of the mobile air conditioner according to an embodiment of the present application.

[0028] Reference numerals:

[0029] 0, housing; 1, compressor; 2, first condenser; 3, water curtain; 4, second fan; 5, solenoid valve; 6, water tank; 7, capillary tube; 8, refrigerant pipeline; 81, main pipe; 82, first branch pipe; 83, second branch pipe; 84, third branch pipe; 85, recovery pipe; 9, water receiving tray; 10, evaporator; 11, second condenser; 12, heating element; 13, first fan; 14, spraying device; 15, sweeping fan blade; 16, first air outlet; 17, air inlet; 18, second air outlet; 19, air guide cover. Detailed implementation manners

[0030] Reference is made herein to the various aspects and features of the present application with reference to the accompanying drawings.

[0031] It should be understood that various modifications can be made to the embodiments claimed herein. Therefore, the above description should not be construed as limiting, but merely as exemplifications of the embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the present application.

[0032] The accompanying drawings, which are included in and constitute a part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0033] These and other features of the present application will become apparent from the following description of the preferred forms of the embodiments, given as non - limiting examples with reference to the accompanying drawings.

[0034] It should also be understood that, although the present application has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present application.

[0035] When considered in conjunction with the accompanying drawings, the above and other aspects, features, and advantages of the present application will become more apparent in view of the following detailed description.

[0036] Specific embodiments of the present application will be described hereinafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of the present application, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present application with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but are merely a basis and representative basis for the claims to teach those skilled in the art to use the present application in substantially any suitable detailed structure in a variety of ways.

[0037] This specification may use the phrase "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", each of which may refer to one or more of the same or different embodiments according to the present application.

[0038] An embodiment of the present application provides a mobile air conditioner, as Figures 1 - 5 shown, including a housing 0 and an air duct system, a refrigeration system, and a heating system provided in the housing 0.

[0039] As Figure 1 and Figure 2 shown, the air duct system includes an air inlet 17, a first air outlet 16, and a first fan 13. The air inlet 17 and the first air outlet 16 are respectively provided on the housing 0, and the first fan 13 is provided between the air inlet 17 and the first air outlet 16. Among them, the air inlet 17 is provided on the first side of the housing 0, and the first air outlet 16 is provided on the other side of the housing 0.

[0040] The refrigeration system includes a refrigerant pipeline 8 and a compressor 1, a solenoid valve 5, a first condenser 2, a second condenser 11, and an evaporator 10 connected in series in sequence on the refrigerant pipeline 8. The shapes of the evaporator 10 and the second condenser 11 are both arc-shaped, and they are arranged around the first fan 13 and opposite to the first air outlet 16. The compressor 1 is provided on the base of the housing 0.

[0041] Among them, both the second condenser 11 and the evaporator 10 are approximately U-shaped plate-like structures. The arc-shaped structure can increase the heat exchange area of the evaporator 10 and the second condenser 11, which is beneficial to improving the working efficiency, and the structure is more compact and convenient for layout.

[0042] The heating system includes a heating element 12, and the heating element 12 is provided between the second condenser 11 and the first fan 13. Among them, the heating element 12 is a plate-like structure, and its center line is collinear with the axis of the first fan 13.

[0043] Among them, indoor air enters through the air inlet 17 under the action of the first fan 13, is cooled by the evaporator 10 to become cold air, and is discharged into the room through the first air outlet 16 to achieve air conditioning refrigeration. Or, indoor air enters through the air inlet 17 under the action of the first fan 13, is heated by the heating element 12 to become hot air, and is discharged into the room through the first air outlet 16 to achieve air conditioning heating.

[0044] In addition, since the dehumidification of existing air conditioners is carried out during the cooling process, there are two unreasonable aspects to this dehumidification. First, when the room temperature is lower than 15 degrees, dehumidification will cause the evaporator 10 to frost and ice, blocking air circulation and resulting in poor dehumidification effect. Second, during the cooling and dehumidification in the warm and humid weather (returning south day) in the south, the outdoor air temperature is high and the humidity is also high. The indoor cooling causes the indoor water vapor to condense faster, and there are more water droplets on the indoor walls, with a poor effect.

[0045] Therefore, the mobile air conditioner of the present application also has the function of dehumidifying without cooling. Indoor air enters through the air inlet 17 under the action of the first fan 13, is cooled by the evaporator 10 to condense out moisture, then is heated by the second condenser 11 to become dry air, and is discharged into the room through the first air outlet 16.

[0046] The mobile air conditioner of the present application inhales indoor air through the air duct system. According to user needs, it can select refrigeration, heating or dehumidifying without cooling mode, enabling the mobile air conditioner to adapt to different environments and user needs and providing comfortable indoor conditions.

[0047] On the basis of being able to achieve the heating function, refrigeration function and dehumidifying without cooling function, by designing the second condenser 11 and the evaporator 10 into an arc shape, the present application makes the structural design reasonable, the layout compact, and saves space. And the installation positions of the second condenser 11 and the evaporator 10 cooperate with the first fan 13 to form a streamline air duct, with smooth air inlet and outlet and high heat exchange efficiency.

[0048] As an optional embodiment, as Figure 1 shown, the air duct system further includes a second air outlet 18 and a second fan 4. The second air outlet 18 is provided on the housing 0 and is located below the air inlet 17. The second fan 4 is provided inside the housing 0 and is opposite to the second air outlet 18.

[0049] Among them, indoor air enters through the air inlet 17 under the action of the second fan 4 to cool the first condenser 2, and is discharged into the room through the second air outlet 18. The present application adds the second air outlet 18 and the second fan 4, which helps to improve the air circulation efficiency and refrigeration effect.

[0050] As an alternative embodiment, the mobile air conditioner further includes a water tank 6 and a water curtain 3. The water tank 6 is disposed inside the housing 0 and opposite to the compressor 1. The water curtain 3 is disposed outside the first condenser 2. The water curtain 3 is connected to the water tank 6 through a pipeline so that the water in the water tank 6 is delivered to the water curtain 3 to cool the first condenser 2.

[0051] Among them, indoor air enters from the air inlet 17 under the action of the second fan 4, becomes cold air after absorbing heat through the water curtain 3, cools the first condenser 2 and is discharged into the room through the second air outlet 18. Through the arrangement of the water tank 6 and the water curtain 3 in this application, an additional cooling means is provided, and the temperature of the first condenser 2 is reduced by the evaporation of the water curtain 3 to enhance the refrigeration effect.

[0052] As an alternative embodiment, a spray device 14 communicating with the water tank 6 is arranged in the first air outlet 16. The spray device 14 is used to humidify the gas discharged into the room from the first air outlet 16. This application provides a humidifying function to improve the indoor air quality, especially in a dry environment, which helps to improve the comfort of users.

[0053] As an alternative embodiment, a rotatable air-sweeping fan blade 15 is arranged in the first air outlet 16. The air-sweeping fan blade 15 is used to adjust the wind direction of the gas discharged into the room from the first air outlet 16. This application provides a wind direction adjustment function, and users can adjust the direction of the air conditioner wind according to needs, improving the flexibility and comfort of use.

[0054] As an alternative embodiment, the mobile air conditioner further includes a water receiving tank 9. The water receiving tank 9 is disposed below the evaporator 10 and communicates with the water tank 6, and is used to receive the condensed water on the outer wall of the evaporator 10 and deliver it into the water tank 6. This application receives the condensed water on the outer wall of the evaporator 10 through the water receiving tank 9 and delivers it into the water tank 6 for collection and reuse, which helps to save water resources and reduce water waste.

[0055] As an alternative embodiment, the first fan 13 is disposed close to the first air outlet 16. A wind guide cover 19 is provided inside the housing 0. The wind guide cover 19 is used to guide the gas introduced by the first fan 13 to the first air outlet 16. Through the design of the wind guide cover 19 in this application, the air flow path is optimized, the air conditioner efficiency is improved, and it is ensured that cold air or hot air is more effectively distributed into the indoor space.

[0056] As an alternative embodiment, the refrigerant pipeline 8 includes a main pipe 81, a first branch pipe 82, a second branch pipe 83, a third branch pipe 84 and a recovery pipe 85. The first branch pipe 82 passes through the first condenser 2, the second branch pipe 83 passes through the second condenser 11, and the third branch pipe 84 passes through the evaporator 10.

[0057] One end of the main pipe 81 is connected to the outlet of the compressor 1, and the other end of the main pipe 81 is connected to the inlet of the solenoid valve 5. The first outlet of the solenoid valve 5 is connected to one end of the first branch pipe 82, the other end of the first branch pipe 82 is connected to one end of the third branch pipe 84, the second outlet of the solenoid valve 5 is connected to one end of the second branch pipe 83, the other end of the second branch pipe 83 is connected to one end of the third branch pipe 84, the other end of the third branch pipe 84 is connected to one end of the recovery pipe 85, and the other end of the recovery pipe 85 is connected to the inlet of the compressor 1. The layout of the refrigerant pipeline 8 of the present application is reasonable, which helps to improve the overall performance of the air conditioner.

[0058] As an alternative embodiment, a capillary tube 7 is provided at the end of the third branch pipe 84 away from the recovery pipe 85, and the other end of the capillary tube 7 is respectively connected to the other ends of the first branch pipe 82 and the second branch pipe 83. Through the design of the capillary tube 7 in the present application, it helps to control the flow rate of the refrigerant, thereby improving the stability and efficiency of the system.

[0059] When the mobile air conditioner of the present application is refrigerating, as Figure 3 shown, the refrigerant becomes a high-temperature and high-pressure gas through the compressor 1, is transported to the solenoid valve 5 through the main pipe 81, and the solenoid valve 5 accesses the refrigerant into the first condenser 2 through the first branch pipe 82.

[0060] Start the second fan 4 to cool the first condenser 2. A water curtain 3 is provided at the air inlet 17 of the second fan 4, which can further cool the first condenser 2. The cooled refrigerant enters the third branch pipe 84 through the capillary tube 7, that is, it becomes a low-pressure and low-temperature liquid and flows into the evaporator 10.

[0061] When the outdoor air is introduced by the first fan 13 and flows through the evaporator 10, the indoor air quickly cools down, and then is blown out from the air outlet under the guidance of the air deflector 19. Among them, if the user needs to adjust the air outlet direction of the cold air, the sweeping fan blade 15 can be adjusted.

[0062] In addition, since some moisture in the air is taken away by the evaporator 10 when the air flows through the evaporator 10, the air becomes dry. Therefore, a spraying device 14 connected to the water tank 6 is added at the first air outlet 16 to humidify the air.

[0063] When the mobile air conditioner of the present application is dehumidifying, as Figure 4As shown in the figure, the refrigerant becomes high-temperature and high-pressure gas through the compressor 1, is transported to the solenoid valve 5 through the main pipe 81, and the solenoid valve 5 accesses the refrigerant into the second condenser 11 through the second branch pipe 83.

[0064] Start the first fan 13 to cool the second condenser 11. The cooled refrigerant enters the third branch pipe 84 through the capillary tube 7, and then becomes low-pressure and low-temperature liquid and flows into the evaporator 10.

[0065] When the outdoor air is introduced by the first fan 13 and flows through the evaporator 10, the indoor air quickly cools down, and then a large amount of condensed water is generated on the outer wall of the evaporator 10. The condensed water drips into the water receiving tank 9 under the action of gravity and is recycled into the water tank 6. At this time, the air absorbs heat and warms up through the second condenser 11, and then blows out from the first air outlet 16 to achieve the purpose of constant temperature and dehumidification.

[0066] This application uses a separate air duct for constant temperature dehumidification, condenses cold air for dehumidification, then heats the condensed cold air through the second condenser 11, and then blows it into the room. In this way, the dehumidification efficiency is high and the indoor humidity and temperature can be accurately controlled to create a comfortable environment.

[0067] When the mobile air conditioner of this application is heating, as Figure 5 shown in the figure, the indoor temperature is relatively low in winter, and the air is heated by the heating element 12. When the first fan 13 is started, the indoor air is introduced into the casing 0 and flows through the heating element 12 to be heated to form hot air, and the hot air blows out from the first air outlet 16.

[0068] The above embodiments are only exemplary embodiments of this application and are not used to limit this application. The protection scope of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of this application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of this application.

Claims

1. A mobile air conditioner, comprising a housing (0) and an air duct system, a refrigeration system and a heating system arranged in the housing (0), characterized in that: The air duct system comprises an air inlet (17), a first air outlet (16) and a first fan (13); the air inlet (17) and the first air outlet (16) are respectively arranged on the housing (0); and the first fan (13) is arranged between the air inlet (17) and the first air outlet (16); The refrigeration system comprises a refrigerant pipeline (8) and a compressor (1), a solenoid valve (5), a first condenser (2), a second condenser (11) and an evaporator (10) which are sequentially connected in series on the refrigerant pipeline (8); the evaporator (10) and the second condenser (11) are both in the shape of an arc surface and are arranged around the first fan (13) and opposite to the first air outlet (16); The heating system comprises a heating element (12), wherein the heating element (12) is arranged between the second condenser (11) and the first fan (13); Wherein, indoor air enters through the air inlet (17) under the action of the first fan (13), is cooled by the evaporator (10) to become cold air, and is discharged into the room through the first air outlet (16); Alternatively, indoor air enters through the air inlet (17) under the action of the first fan (13), is heated by the heating element (12) to become hot air, and is discharged into the room through the first air outlet (16); Alternatively, indoor air enters through the air inlet (17) under the action of the first fan (13), is cooled by the evaporator (10) to condense moisture, is then heated by the second condenser (11) to become dry air, and is discharged into the room through the first air outlet (16).

2. The mobile air conditioner according to claim 1, characterized in that: The air duct system further comprises a second air outlet (18) and a second fan (4), wherein the second air outlet (18) is arranged on the housing (0) and below the air inlet (17), and the second fan (4) is arranged inside the housing (0) and opposite to the second air outlet (18); Wherein, indoor air enters through the air inlet (17) under the action of the second fan (4) to cool the first condenser (2), and is discharged into the room through the second air outlet (18).

3. The mobile air conditioner according to claim 2, characterized in that: The mobile air conditioner further comprises a water tank (6) and a water curtain (3); the water tank (6) is arranged in the housing (0) and opposite to the compressor (1); the water curtain (3) is arranged on the outside of the first condenser (2); the water curtain (3) and the water tank (6) are connected via a pipeline so that the water in the water tank (6) is transported to the water curtain (3) to cool the first condenser (2); Wherein, indoor air enters through the air inlet (17) under the action of the second fan (4), absorbs heat through the water curtain (3) and becomes cold air to cool the first condenser (2) and is discharged into the room through the second air outlet (18).

4. The mobile air conditioner according to claim 3, characterized in that: A spray device (14) connected to the water tank (6) is arranged in the first air outlet (16), and the spray device (14) is used to humidify the gas discharged from the first air outlet (16) into the room.

5. The mobile air conditioner according to claim 1, characterized in that: A rotatable sweeping fan blade (15) is arranged inside the first air outlet (16), and the sweeping fan blade (15) is used to adjust the wind direction of the gas discharged from the first air outlet (16) into the room.

6. The mobile air conditioner according to claim 3, characterized in that: The mobile air conditioner also includes a water receiving trough (9), which is arranged on the lower side of the evaporator (10) and is connected to the water tank (6) for receiving condensed water on the outer wall of the evaporator (10) and transporting it to the water tank (6).

7. The mobile air conditioner according to claim 1, characterized in that: The first fan (13) is arranged close to the first air outlet (16), and an air guide cover (19) is arranged inside the housing (0), and the air guide cover (19) is used to guide the gas introduced by the first fan (13) to the first air outlet (16).

8. The mobile air conditioner according to claim 1, characterized in that: The refrigerant pipe (8) comprises a main pipe (81), a first branch pipe (82), a second branch pipe (83), a third branch pipe (84) and a recovery pipe (85), wherein the first branch pipe (82) passes through the first condenser (2), the second branch pipe (83) passes through the second condenser (11), and the third branch pipe (84) passes through the evaporator (10). One end of the main pipe (81) is connected to the outlet of the compressor (1), and the other end of the main pipe (81) is connected to the inlet of the solenoid valve (5). The first outlet of the solenoid valve (5) is connected to one end of the first branch pipe (82), and the other end of the first branch pipe (82) is connected to one end of the third branch pipe (84). The second outlet of the solenoid valve (5) is connected to one end of the second branch pipe (83), and the other end of the second branch pipe (83) is connected to one end of the third branch pipe (84). The other end of the third branch pipe (84) is connected to one end of the recovery pipe (85), and the other end of the recovery pipe (85) is connected to the inlet of the compressor (1).

9. The mobile air conditioner according to claim 8, characterized in that: A capillary tube (7) is provided at one end of the third branch tube (84) away from the recovery tube (85), and the other end of the capillary tube (7) is respectively connected to the other end of the first branch tube (82) and the other end of the second branch tube (83).

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