Vehicle air conditioner and vehicle

Abstract

The application provides a vehicle air conditioner and a vehicle, and relates to the field of vehicles.The vehicle air conditioner comprises a shell with a condensing bin and an assembly bin arranged at intervals in the interior, a condensing fan is installed on the top of the condensing bin, a condensing core is installed in the interior of the condensing bin, and the two ends of the condensing core are respectively in abutment with the end walls of the condensing bin; a first circulating system comprises a first compressor, a first expansion valve and an evaporation core, the first compressor is installed in the assembly bin, the evaporation core is installed in the condensing bin, and the first compressor, the condensing core, the first expansion valve and the evaporation core are connected in series; a second circulating system comprises a second compressor, a second expansion valve and a plate heat exchanger, the second compressor and the plate heat exchanger are both installed in the assembly bin, and the second compressor, the condensing core, the second expansion valve and the plate heat exchanger are connected in series.The vehicle air conditioner solves the technical problem that the air conditioner is restricted by the space of the whole vehicle, and cannot simultaneously meet the increasing demand for battery cooling and the demand for passenger cabin cooling in the prior art.

Description

Technical Field

[0001] This application relates to the field of vehicles, and more specifically, to an automotive air conditioner and a vehicle. Background Technology

[0002] With the electrification of the automotive industry and consumers' ever-increasing demands for ride comfort, automotive air conditioning systems are facing unprecedented technological challenges. On the one hand, to address global climate change, the energy density and capacity of battery packs in electric vehicles are continuously increasing. Under conditions such as high-power fast charging and aggressive driving, these packs generate a significant amount of heat. To ensure battery safety, lifespan, and performance, efficient active cooling has become a rigid requirement, leading to a reduction in the cooling capacity originally intended solely for the passenger compartment. On the other hand, larger glass panoramic sunroofs, longer driving ranges resulting in longer continuous cooling times, and higher requirements for rapid cabin cooling all significantly increase the need for cooling capacity.

[0003] With the increasing demands for vehicle space and lightweight design, as well as the greater cooling needs of the passenger compartment and the huge heat load generated by high-power fast charging of the battery, the redundancy of the cooling capacity design of traditional automotive air conditioning systems can no longer meet the dual peak loads of battery heat pipes and passenger compartment comfort at the same time. Insufficient cooling capacity directly restricts the vehicle's performance, safety and user experience. Utility Model Content

[0004] The purpose of this utility model is to provide an automotive air conditioner and vehicle to alleviate the technical problem that existing air conditioners are constrained by the overall vehicle space and cannot simultaneously meet the growing demand for battery cooling and passenger cabin cooling.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: In a first aspect, the vehicle air conditioner provided by this utility model includes a housing, a condenser fan, a condenser core, a first circulation system, and a second circulation system; The outer shell has a spaced-out condensation chamber and an assembly chamber inside. The condensing fan is installed on the top of the condensation chamber, and the condensing core is installed inside the condensation chamber, with both ends of the condensing core abutting against the end wall of the condensation chamber. The first circulation system includes a first compressor, a first expansion valve, and an evaporator core. The first compressor is installed in the assembly chamber, the evaporator core is installed in the condensation chamber, and the evaporator core is located on one side of the condensation core. The first compressor, the condensation core, the first expansion valve, and the evaporator core are connected in series. The second circulation system includes a second compressor, a second expansion valve, and a plate heat exchanger. The second compressor and the plate heat exchanger are both installed in the assembly compartment. The plate heat exchanger is located on the side of the second compressor away from the condensation compartment, and the second compressor, the condensation core, the second expansion valve, and the plate heat exchanger are connected in series.

[0006] Furthermore, the second circulation system includes two plate heat exchangers connected in parallel, both installed in the assembly chamber and arranged opposite to each other.

[0007] Furthermore, the vehicle air conditioner includes an active fresh air assembly, which is installed on the side wall of the condensation chamber away from the assembly chamber.

[0008] Furthermore, the active fresh air assembly includes a fresh air damper, a fresh air fan, and a fixed frame; The side wall of the condensation chamber is provided with a fresh air inlet, and the fixing frame is installed on the side wall of the condensation chamber and surrounds the outer periphery of the fresh air inlet; The fresh air fan is installed inside the fixed frame, and the fresh air damper is hinged to the fixed frame to cover or open the fixed frame.

[0009] Furthermore, the active fresh air assembly also includes an air duct, which is installed inside the condensation chamber, with one end facing the fresh air inlet and the other end facing the return air inlet of the evaporator core.

[0010] Furthermore, the vehicle air conditioner includes a controller that is signal-connected to the fresh air damper and the fresh air fan to control the opening and closing of the fresh air damper and the fresh air fan.

[0011] Furthermore, multiple condenser fans are provided, and the multiple condenser fans are spaced apart along the length direction of the outer casing.

[0012] Furthermore, the first circulation system also includes an evaporator fan, which is installed in the condensation chamber and located on the side of the evaporator core away from the condensation core.

[0013] Furthermore, multiple evaporation fans are provided, and the multiple evaporation fans are spaced apart along the length direction of the outer casing.

[0014] Furthermore, the first circulation system includes two evaporation cores, which are located on opposite sides of the condensation core.

[0015] Furthermore, the outer casing includes a base and a fan cover; a partition is installed inside the base, which divides the base into the condensation chamber and the assembly chamber; the fan cover is located above the condensation core, and the condensing fan is installed on the fan cover.

[0016] Secondly, the vehicle provided by this utility model includes the vehicle air conditioner as described in any of the above claims.

[0017] Based on the above technical solutions, the technical effects achievable by this utility model can be analyzed as follows: The vehicle air conditioner provided by this utility model includes a housing, a condenser fan, a condenser core, a first circulation system, and a second circulation system. The housing has a condenser compartment and an assembly compartment arranged at intervals inside. The condenser fan is installed on the top of the condenser compartment, and the condenser core is installed inside the condenser compartment, with both ends of the condenser core abutting against the end walls of the condenser compartment. The first circulation system includes a first compressor, a first expansion valve, and an evaporator core. The first compressor is installed in the assembly compartment, and the evaporator core is installed in the condenser compartment, with the evaporator core located on one side of the condenser core. The first compressor, condenser core, first expansion valve, and evaporator core are connected in series. The second circulation system includes a second compressor, a second expansion valve, and a plate heat exchanger. The second compressor and the plate heat exchanger are both installed in the assembly compartment. The plate heat exchanger is located on the side of the second compressor away from the condenser compartment, and the second compressor, condenser core, second expansion valve, and plate heat exchanger are connected in series.

[0018] The outer casing supports and secures the various components within the automotive air conditioner. Inside, there are spaced-out condenser compartments and assembly compartments, each used to mount and secure different parts, enabling zonal management and convenient layout. Additionally, the condenser core is installed inside the condenser compartment, with both ends abutting against the end walls of the compartment, increasing its length and providing enhanced heat dissipation. A condenser fan is mounted on top of the condenser compartment for auxiliary cooling.

[0019] In the first cycle system, the refrigerant is compressed into a high-temperature, high-pressure state by the first compressor. The high-temperature, high-pressure gaseous refrigerant flows into the condenser core and, under the cooling of the condenser fan, releases heat to the outside air, condensing into a medium-temperature, high-pressure liquid. The liquid refrigerant flows through the first expansion valve, where its pressure and temperature drop sharply, becoming a low-temperature, low-pressure liquid (mixed with a small amount of gas) mist. The low-temperature, low-pressure mist refrigerant enters the evaporator core, where it absorbs heat from the outside air, evaporates, absorbs heat, becomes a low-temperature, low-pressure gas, and flows back to the first compressor to be compressed again to start the next cycle. The heat of the outside air blown through the evaporator core is absorbed by the refrigerant, its temperature drops, and it becomes cold air that is input into the passenger compartment to cool the air inside and improve passenger comfort.

[0020] In the second cycle system, the refrigerant is compressed into a high-temperature, high-pressure state by the second compressor. The high-temperature, high-pressure gaseous refrigerant flows into the condenser core and, under the cooling of the condenser fan, releases heat to the outside air, condensing into a medium-temperature, high-pressure liquid. The liquid refrigerant flows through the second expansion valve, where its pressure and temperature drop sharply, becoming a low-temperature, low-pressure liquid (mixed with a small amount of gas) mist. The low-temperature, low-pressure mist refrigerant enters the refrigerant channel of the plate heat exchanger, while the high-temperature battery coolant flows into the coolant channel of the plate heat exchanger. The refrigerant and coolant exchange heat, and the refrigerant absorbs heat and evaporates into a low-temperature, low-pressure gas, flowing back into the second compressor to be compressed again to start the next cycle. The cooled coolant returns to the battery pack to continue circulating and cooling the battery.

[0021] Based on the existing package size, the layout of each mechanism of the vehicle air conditioner has been adjusted. Through reasonable arrangement, the mechanism is integrated, the length of the condenser core is increased, the cooling capacity is improved, and the space occupied by the air conditioner in the whole vehicle is not increased. At the same time, it meets the thermal management requirements of high-rate fast charging of battery and the transient comfort requirements of passenger compartment, and solves the problem of thermal management bottleneck in vehicle within limited space. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the internal structure of an automotive air conditioner provided in an embodiment of this application; Figure 2 An exploded view of an automotive air conditioner provided in an embodiment of this application; Figure 3 This is a schematic diagram of an active fresh air component in an automotive air conditioner provided in an embodiment of this application.

[0024] icon: 1-First air guide shroud; 2-Cover plate; 3-Fan cover plate; 4-Condenser fan; 5-Second air guide shroud; 6-Active fresh air assembly; 7-Base; 8-Evaporator fan; 9-Evaporator core; 10-Condenser core; 11-First compressor; 12-Plate heat exchanger; 13-Fresh air damper; 14-Fresh air fan; 15-Fixing frame; 16-Air duct; 17-Second compressor. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Example 1 Traditional automotive air conditioning systems, with their redundant cooling capacity design, are no longer able to simultaneously meet the dual peak loads of battery thermal management and passenger cabin comfort. Insufficient cooling capacity directly restricts vehicle performance, safety, and user experience.

[0029] In view of this, see Figure 1 and Figure 2The vehicle air conditioner provided in this embodiment includes a housing, a condenser fan 4, a condenser core 10, a first circulation system, and a second circulation system. The housing has a condenser chamber and an assembly chamber arranged at intervals inside. The condenser fan 4 is installed on the top of the condenser chamber, and the condenser core 10 is installed inside the condenser chamber, with both ends of the condenser core 10 abutting against the end walls of the condenser chamber. The first circulation system includes a first compressor 11, a first expansion valve, and an evaporator core 9. The first compressor 11 is installed in the assembly chamber, and the evaporator core 9 is installed in the condenser chamber, with the evaporator core 9 located on one side of the condenser core 10. The first compressor 11, the condenser core 10, the first expansion valve, and the evaporator core 9 are connected in series. The second circulation system includes a second compressor 17, a second expansion valve, and a plate heat exchanger 12. The second compressor 17 and the plate heat exchanger 12 are both installed in the assembly chamber. The plate heat exchanger 12 is located on the side of the second compressor 17 away from the condenser chamber, and the second compressor 17, the condenser core 10, the second expansion valve, and the plate heat exchanger 12 are connected in series.

[0030] Specifically, the outer shell is rectangular in shape, with the condensing chamber and the assembly chamber spaced apart along the length of the outer shell. The condensing core 10 is rectangular, with its length along the length of the outer shell. Both ends of the condensing core 10 are respectively attached to the two end walls of the condensing chamber along the length of the outer shell, maximizing the length of the condensing core 10 without changing the outer shell dimensions. Downstream of the condensing core 10, along the refrigerant flow direction, a liquid receiver and a dryer are installed. The liquid receiver stores excess liquid refrigerant from the condensing core 10. When the system operates under different conditions (such as load changes), it can stably provide a continuous and sufficient amount of liquid refrigerant to the first and second expansion valves, preventing insufficient liquid supply to the evaporating core 9 and the problem of the first compressor 11 or the second compressor 17 drawing in liquid refrigerant. The desiccant inside the dryer adsorbs trace amounts of moisture in the refrigerant circulation. Moisture can cause ice blockage (ice formation at the first or second expansion valve), corrode metal pipes, and react with the refrigerant to generate acidic substances that damage the system; therefore, drying and moisture removal are necessary.

[0031] The outer casing supports, secures, and protects the various components within the automotive air conditioner. Inside, there are spaced-out condenser compartments and assembly compartments, each used to mount and secure different parts, enabling zonal management and convenient layout. Additionally, the condenser core 10 is installed inside the condenser compartment, with both ends abutting against the end walls of the compartment, increasing its length and providing enhanced heat dissipation. The condenser fan 4 is installed on top of the condenser compartment for auxiliary cooling.

[0032] In the first cycle system, the refrigerant is compressed into a high-temperature, high-pressure state by the first compressor 11. The high-temperature, high-pressure gaseous refrigerant flows into the condenser core 10 and, under the cooling of the condenser fan, releases heat to the outside air, condensing into a medium-temperature, high-pressure liquid. The liquid refrigerant flows through the first expansion valve, where its pressure and temperature drop sharply, becoming a low-temperature, low-pressure liquid (mixed with a small amount of gas) mist. The low-temperature, low-pressure mist refrigerant enters the evaporator core 9, where it absorbs heat from the outside air, evaporates, absorbs heat, becomes a low-temperature, low-pressure gas, and flows back into the first compressor 11 to be compressed again to start the next cycle. The heat of the outside air blown through the evaporator core 9 is absorbed by the refrigerant, and its temperature drops, becoming cold air that is input into the passenger compartment to cool the air inside the compartment and improve passenger comfort.

[0033] In the second cycle system, the refrigerant is compressed into a high-temperature, high-pressure state by the second compressor 17. The high-temperature, high-pressure gaseous refrigerant flows into the condenser core 10 and, under the cooling of the condenser fan, releases heat to the outside air, condensing into a medium-temperature, high-pressure liquid. The liquid refrigerant flows through the second expansion valve, where its pressure and temperature drop sharply, becoming a low-temperature, low-pressure liquid (mixed with a small amount of gas) mist. The low-temperature, low-pressure mist refrigerant enters the refrigerant channel of the plate heat exchanger 12, and the high-temperature battery coolant flows into the coolant channel of the plate heat exchanger 12. The refrigerant and coolant exchange heat, and the refrigerant absorbs heat and evaporates into a low-temperature, low-pressure gas, flowing back into the second compressor 17 to be compressed again to start the next cycle. The cooled coolant returns to the battery pack to continue circulating and cooling the battery.

[0034] This automotive air conditioning system adjusts the layout of its various components based on the existing package dimensions. Through rational arrangement, the components are integrated, increasing the length of the condenser core 10 and improving cooling capacity without increasing the space occupied by the air conditioning system in the vehicle. It simultaneously meets the thermal management requirements during high-rate fast charging of the battery and the transient comfort requirements of the passenger compartment, solving the thermal management bottleneck problem in a vehicle with limited space. This automotive air conditioning system features high integration and large cooling capacity within the existing vehicle space.

[0035] The structure of automotive air conditioning is explained in detail below: In the optional solution provided by this utility model embodiment, the second circulation system includes two plate heat exchangers 12, which are connected in parallel and installed in the assembly chamber, and are arranged opposite to each other.

[0036] Specifically, both plate heat exchangers 12 are located on the side of the second compressor 17 away from the condenser compartment, and one plate heat exchanger 12 is located on the side of the first compressor 11 away from the second compressor 17, while the other plate heat exchanger 12 is located on the side of the second compressor 17 away from the first compressor 11, thus integrating the two plate heat exchangers 12 into the assembly compartment. This vehicle air conditioner adopts a dual-sided integrated design with two plate heat exchangers 12 distributed on both sides of the two compressors, which allows for the use of two plate heat exchangers 12 without increasing the volume of the outer casing, thereby improving heat exchange efficiency.

[0037] The second circulation system includes two parallel plate heat exchangers 12, which increases the heat exchange area and thus improves the heat exchange efficiency.

[0038] In the optional solution provided by this utility model embodiment, the vehicle air conditioner includes an active fresh air component 6, which is installed on the side wall of the condensation chamber away from the assembly chamber.

[0039] Specifically, the active fresh air component 6 is used to introduce outdoor air into the vehicle cabin, thereby replacing the air inside the cabin.

[0040] An active fresh air assembly 6 is installed on the side wall of the condensation chamber away from the assembly chamber, which enables the rapid introduction of fresh outdoor air into the cabin, improving comfort.

[0041] In the optional solution provided by this utility model embodiment, the active fresh air assembly 6 includes a fresh air damper 13, a fresh air fan 14, and a fixed frame 15; the side wall of the condensation chamber is provided with a fresh air inlet, the fixed frame 15 is installed on the side wall of the condensation chamber and surrounds the outer periphery of the fresh air inlet; the fresh air fan 14 is installed inside the fixed frame 15, and the fresh air damper 13 is hinged to the fixed frame 15 to cover or open the fixed frame 15.

[0042] Specifically, see Figure 3 The fixed frame 15 is square in shape and is fixedly installed on the outer wall of the condensation chamber; the fresh air fan 14 is installed inside the fixed frame 15, and the fresh air damper 13 is hinged to the fixed frame 15 through a hinge shaft.

[0043] The fresh air damper 13 is hinged to the fixed frame 15, so that the fresh air damper 13 can cover or open the fixed frame 15, thereby disconnecting or connecting the fresh air inlet with the outside. The fresh air fan 14 is installed inside the fixed frame 15, so that when the fresh air damper 13 is open, that is, when the fresh air inlet is connected with the outside, fresh outdoor air can be drawn into the fresh air inlet.

[0044] In the optional solution provided by this utility model embodiment, the active fresh air component 6 further includes an air duct 16, which is installed inside the condensation chamber, with one end facing the fresh air inlet and the other end facing the return air inlet of the evaporation core 9.

[0045] Specifically, the air duct 16 is installed on the inner wall of the condensation chamber using screws, and the air duct 16 is used for air diversion.

[0046] Outdoor air is blown through the fresh air fan 14 and the air duct 16 to the return air inlet of the evaporator core 9.

[0047] In the optional solution provided by this utility model embodiment, the vehicle air conditioner includes a controller, which is signal-connected to the fresh air damper 13 and the fresh air fan 14 to control the opening and closing of the fresh air damper 13 and the fresh air fan 14.

[0048] Specifically, the controller is electrically connected to the fresh air damper 13 and the fresh air fan 14. When the fresh air damper 13 is opened, the fresh air fan 14 starts to run, so as to introduce fresh air into the vehicle compartment; when the fresh air damper 13 is closed, the fresh air fan 14 stops running. The controller realizes the linkage between the fresh air damper 13 and the fresh air fan 14, and improves the automation level of the vehicle air conditioning.

[0049] When fresh air needs to be replaced in the carriage, the controller issues a command, and the fresh air damper 13 rotates to open the fresh air inlet. Outdoor air is blown through the fresh air fan 14 and the air duct 16 to the return air inlet of the evaporator core 9.

[0050] In the optional solution provided by this utility model embodiment, multiple condenser fans 4 are provided, and the multiple condenser fans 4 are spaced apart along the length direction of the outer shell.

[0051] Specifically, in this embodiment, six condenser fans 4 are provided, and the six condenser fans 4 are evenly spaced along the length of the outer casing. Of course, setting the number of condenser fans 4 to other numbers should also be within the protection scope of this utility model embodiment.

[0052] Multiple condenser fans 4 are provided to enhance the auxiliary cooling effect on the condenser core 10.

[0053] In the optional solution provided by the present invention, the first circulation system further includes an evaporator fan 8, which is installed in the condensation chamber and located on the side of the evaporator core 9 away from the condenser core 10.

[0054] Specifically, in the first cycle system, the refrigerant is compressed into a high-temperature, high-pressure state by the first compressor 11. The high-temperature, high-pressure gaseous refrigerant flows into the condenser core 10 and, under the cooling of the condenser fan, releases heat to the outside air, condensing into a medium-temperature, high-pressure liquid. The liquid refrigerant flows through the first expansion valve, where its pressure and temperature drop sharply, becoming a low-temperature, low-pressure liquid (mixed with a small amount of gas) mist. The low-temperature, low-pressure mist refrigerant enters the evaporator core 9, where the evaporator fan 8 blows warm air from inside the carriage across it. The refrigerant absorbs heat from the outside air, evaporates, absorbs heat, becomes a low-temperature, low-pressure gas, and flows back to the first compressor 11 to be compressed again to start the next cycle. The heat from the outside air blown across the evaporator core 9 is absorbed by the refrigerant, its temperature drops, and it becomes cold air that is input into the carriage to cool the air inside and improve passenger comfort.

[0055] Evaporator fan 8 drives airflow, allowing air to pass through the surface of evaporator core 9, enhancing the heat exchange effect, and delivering the regulated air into the carriage.

[0056] In the optional solution provided by this utility model embodiment, multiple evaporator fans 8 are provided, and the multiple evaporator fans 8 are spaced apart along the length direction of the outer shell.

[0057] Specifically, the number of evaporator fans 8 can be set to three, four or six, etc., and multiple evaporator fans 8 are evenly spaced along the length of the outer casing.

[0058] Multiple evaporator fans are installed to achieve zoned air supply, improving air volume uniformity and comfort.

[0059] In the optional embodiment of this utility model, the first circulation system includes two evaporation cores 9, which are located on both sides of the condensation core 10.

[0060] Specifically, evaporation fans 8 are installed on the side of each of the two evaporation cores 9 away from the condenser core 10.

[0061] There are two evaporator cores 9, which further realizes distributed and precise thermal management and improves comfort.

[0062] In the optional embodiment of this utility model, the outer shell includes a base 7 and a fan cover 3; a partition is installed inside the base 7, which divides the base 7 into a condensation chamber and an assembly chamber; the fan cover 3 is located above the condensation core 10, and the condensing fan 4 is installed on the fan cover 3.

[0063] Specifically, see Figure 2Multiple condenser fans 4 are installed on the fan cover plate 3. The outer casing also includes a cover plate 2, a first guide shroud 1, and a second guide shroud 5. The first guide shroud 1 and the second guide shroud 5 are respectively installed at both ends of the fan cover plate 3, and the first guide shroud 1 covers the assembly compartment; the first guide shroud 1 and the second guide shroud 5 are connected to the base 7. One side wall of the cover plate 2 is connected to the side wall of the first guide shroud 1, the fan cover plate 3, and the second guide shroud 5, and the other side wall is connected to the base 7. The cover plate 2 covers the evaporator core 9 and the evaporator fan 8. It is worth noting that cover plates 2 are installed on both sides of the fan cover plate 3. Figure 2 The cover plate 2 on one side of the fan cover plate 3 is hidden to facilitate observation of the parts inside the casing.

[0064] The base 7 is used to support the various components of the vehicle air conditioner, and the fan cover 3 is used to fix the condenser fan 4, so that the condenser fan 4 can be located above the condenser core 10.

[0065] Example 2 The vehicle provided in this embodiment of the utility model includes the vehicle air conditioner described in Embodiment 1, and therefore also possesses all the beneficial effects of Embodiment 1, which will not be repeated here.

[0066] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0067] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A vehicle air conditioner, characterized in that, include: The outer casing, condenser fan (4), condenser core (10), first circulation system and second circulation system; The outer shell has a spaced-out condensing chamber and an assembly chamber inside. The condensing fan (4) is installed on the top of the condensing chamber, and the condensing core (10) is installed inside the condensing chamber. Both ends of the condensing core (10) abut against the end wall of the condensing chamber. The first circulation system includes a first compressor (11), a first expansion valve and an evaporator core (9). The first compressor (11) is installed in the assembly chamber, the evaporator core (9) is installed in the condensation chamber, and the evaporator core (9) is located on one side of the condensation core (10). The first compressor (11), the condensation core (10), the first expansion valve and the evaporator core (9) are connected in series. The second circulation system includes a second compressor (17), a second expansion valve and a plate heat exchanger (12). The second compressor (17) and the plate heat exchanger (12) are both installed in the assembly chamber. The plate heat exchanger (12) is located on the side of the second compressor (17) away from the condensation chamber, and the second compressor (17), the condensation core (10), the second expansion valve and the plate heat exchanger (12) are connected in series.

2. The vehicle air conditioner according to claim 1, characterized in that, The second circulation system includes two plate heat exchangers (12), which are connected in parallel and installed in the assembly chamber and arranged opposite to each other.

3. The vehicle air conditioner according to claim 1, characterized in that, The vehicle air conditioner includes an active fresh air assembly (6), which is installed on the side wall of the condensation chamber away from the assembly chamber.

4. The vehicle air conditioner according to claim 3, characterized in that, The active fresh air assembly (6) includes a fresh air damper (13), a fresh air fan (14), and a fixed frame (15). The side wall of the condensation chamber is provided with a fresh air inlet, and the fixing frame (15) is installed on the side wall of the condensation chamber and surrounds the outer periphery of the fresh air inlet; The fresh air fan (14) is installed inside the fixed frame (15), and the fresh air damper (13) is hinged to the fixed frame (15) to cover or open the fixed frame (15).

5. The vehicle air conditioner according to claim 4, characterized in that, The active fresh air assembly (6) also includes an air duct (16), which is installed inside the condensation chamber, with one end facing the fresh air inlet and the other end facing the return air inlet of the evaporation core (9).

6. The vehicle air conditioner according to claim 4, characterized in that, The vehicle air conditioner includes a controller, which is signal-connected to the fresh air damper (13) and the fresh air fan (14) to control the opening and closing of the fresh air damper (13) and the fresh air fan (14).

7. The vehicle air conditioner according to claim 1, characterized in that, Multiple condenser fans (4) are provided, and the multiple condenser fans (4) are spaced apart along the length direction of the outer shell.

8. The vehicle air conditioner according to claim 1, characterized in that, The first circulation system further includes an evaporator fan (8), which is installed in the condensation chamber and located on the side of the evaporator core (9) away from the condensation core (10).

9. The vehicle air conditioner according to claim 8, characterized in that, Multiple evaporator fans (8) are provided, and the multiple evaporator fans (8) are spaced apart along the length direction of the outer shell.

10. The vehicle air conditioner according to claim 8, characterized in that, The first circulation system includes two evaporation cores (9), which are located on both sides of the condensation core (10).

11. The vehicle air conditioner according to any one of claims 1-10, characterized in that, The outer casing includes a base (7) and a fan cover (3); A partition is installed inside the base (7), which divides the base (7) into the condensation chamber and the assembly chamber; The fan cover plate (3) is located above the condenser core (10), and the condenser fan (4) is installed on the fan cover plate (3).

12. A vehicle, characterized in that, Including the vehicle air conditioner as described in any one of claims 1-11.

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