Vehicle-mounted air conditioner and refrigerator integrated system and vehicle

Abstract

The invention discloses a vehicle-mounted air conditioner and refrigerator integrated system and a vehicle. The system comprises a first heat exchanger and a second heat exchanger which are arranged in an air conditioner box body; the third heat exchanger is arranged in the refrigerator body; an air return port of the compressor is connected with one end of the second heat exchanger and one end of the third heat exchanger, and an exhaust port of the compressor is connected with one end of the first heat exchanger; one end of the fourth heat exchanger is connected with an exhaust port of the compressor and the other end of the first heat exchanger, and the other end of the fourth heat exchanger is connected with the other end of the second heat exchanger, an air return port of the compressor and the other end of the third heat exchanger; and the controller is configured to control the refrigerant circulation path based on the first target demand so that the air conditioner and the refrigerator can be in the target working mode. Therefore, the system solves the technical problems that in the prior art, a refrigerator is small in refrigeration and temperature adjustment range, large in occupied space and uncontrollable in later-stage refitting quality, and redundancy is caused by introduction of an additional refrigeration system.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle refrigerators, and in particular to a vehicle air-conditioning and refrigerator integrated system and a vehicle. Background Art

[0002] At present, most of the on-board refrigerators in passenger cars on the market are after-installed independent on-board refrigerators powered by the on-board power supply. Such on-board refrigerators generally use independent refrigeration systems, are relatively large in size, or achieve small-scale temperature adjustment of the on-board refrigerator by introducing air conditioning ducts (cold and warm air). Therefore, the above technical solutions have problems such as small refrigeration temperature adjustment range, large space occupation, uncontrollable quality of post-modification, and introduction of additional refrigeration systems, which greatly reduces the user experience. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present application is to propose a vehicle air-conditioning refrigerator integrated system, which realizes the design of a front-mounted vehicle refrigerator based on the vehicle air-conditioning refrigerant system, and solves the technical problems in the related art such as small refrigeration temperature adjustment range, large occupied space, uncontrollable quality of later modification, and redundancy caused by introducing an additional refrigeration system.

[0004] The second object of the present application is to provide a vehicle.

[0005] To achieve the above-mentioned objectives, the first aspect of the present application proposes an integrated vehicle air-conditioning and refrigerator system, which includes: a first heat exchanger and a second heat exchanger arranged in the air-conditioning box; a third heat exchanger arranged in the refrigerator box; a compressor, the return air port of the compressor is respectively connected to one end of the second heat exchanger and one end of the third heat exchanger, and the exhaust port of the compressor is connected to one end of the first heat exchanger; a fourth heat exchanger, one end of the fourth heat exchanger is respectively connected to the exhaust port of the compressor and the other end of the first heat exchanger, and the other end of the fourth heat exchanger is respectively connected to the other end of the second heat exchanger, the return air port of the compressor and the other end of the third heat exchanger; a controller is configured to control the refrigerant circulation path based on the first target demand so that the air conditioner and the refrigerator are in a target operating mode.

[0006] According to the vehicle air-conditioning refrigerator integrated system of the embodiment of the present application, the system includes a first heat exchanger and a second heat exchanger arranged in the air-conditioning box, a third heat exchanger arranged in the refrigerator box, a compressor, a fourth heat exchanger and a controller, wherein the return air port of the compressor is respectively connected to one end of the second heat exchanger and one end of the third heat exchanger, the exhaust port of the compressor is connected to one end of the first heat exchanger, one end of the fourth heat exchanger is respectively connected to the exhaust port of the compressor and the other end of the first heat exchanger, the other end of the fourth heat exchanger is respectively connected to the other end of the second heat exchanger, the return air port of the compressor and the other end of the third heat exchanger, and the controller controls the refrigerant circulation path based on the first target demand so that the air conditioner and the refrigerator are in the target working mode. Thus, the system realizes the design of a front-mounted vehicle refrigerator based on the vehicle air-conditioning refrigerant system, and solves the technical problems in the related art of small refrigeration temperature adjustment range, large occupied space, uncontrollable quality of later modification, and redundancy caused by the introduction of an additional refrigeration system.

[0007] In addition, the vehicle air-conditioning and refrigerator integrated system according to the above embodiment of the present application may also have the following additional technical features:

[0008] According to one embodiment of the present application, the vehicle-mounted air-conditioning and refrigerator integrated system also includes: a first three-way valve, the first end of the first three-way valve is connected to the exhaust port of the compressor, the second end of the first three-way valve is connected to one end of the fourth heat exchanger, and the third end of the first three-way valve is connected to one end of the first heat exchanger.

[0009] According to one embodiment of the present application, the vehicle-mounted air-conditioning and refrigerator integrated system also includes: a second three-way valve, a first end of the second three-way valve is connected to the other end of the fourth heat exchanger, a second end of the second three-way valve is connected to the other end of the second heat exchanger and to the return air port of the compressor through the solenoid valve, and a third end of the second three-way valve is connected to the other end of the third heat exchanger; the controller is configured to, when the vehicle is operating in a cooling mode, control the first end of the first three-way valve to be connected to the second end of the first three-way valve, the first end of the second three-way valve to be connected to the second end of the second three-way valve, and control the solenoid valve to be in a disconnected state so that the air conditioner is in a cooling mode; when the vehicle is operating in a heating mode, control the first end of the first three-way valve to be connected to the third end of the first three-way valve, the first end of the second three-way valve to be connected to the second end of the second three-way valve, and control the solenoid valve to be in a conducting state so that the air conditioner is in a heating mode; when the refrigerator is in a cooling mode, control the first end of the first three-way valve to be connected to the third end of the first three-way valve, the first end of the second three-way valve to be connected to the second end of the second three-way valve, and control the solenoid valve to be in a conducting state so that the air conditioner is in a heating mode. When the vehicle is operated in cooling mode, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, and the first end of the second three-way valve is controlled to be connected to the third end of the second three-way valve, so that the refrigerator is in cooling mode; when the vehicle is operated in cooling mode and the refrigerator is operated in cooling mode, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the second end of the second three-way valve and the third end of the second three-way valve, and the solenoid valve is controlled to be in a disconnected state, so that the air conditioner is in cooling mode and the refrigerator is in cooling mode; when the vehicle is operated in heating mode and the refrigerator is operated in cooling mode, the first end of the first three-way valve is controlled to be connected to the third end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the second end of the second three-way valve and the third end of the second three-way valve, and the solenoid valve is controlled to be in a conducting state, so that the air conditioner is in heating mode and the refrigerator is in cooling mode.

[0010] According to one embodiment of the present application, the vehicle-mounted air-conditioning and refrigerator integrated system also includes: a heat exchange unit arranged corresponding to the vehicle battery, one end of the heat exchange unit is connected to the other end of the fourth heat exchanger, the other end of the heat exchange unit is connected to the return air port of the compressor, and the heat exchange unit is configured to perform heat exchange on the battery of the vehicle; the controller is also configured to control the refrigerant circulation path based on the second target demand so that the air conditioner, refrigerator and heat exchange unit are in the target working mode.

[0011] According to one embodiment of the present application, the vehicle-mounted air-conditioning and refrigerator integrated system also includes: a third three-way valve, a first end of the third three-way valve is connected to the third end of the second three-way valve, a second end of the third three-way valve is connected to the other end of the third heat exchanger, and a third end of the third three-way valve is connected to one end of the heat exchange unit; the controller is configured to control the first end of the first three-way valve to be connected to the second end of the first three-way valve, the first end of the second three-way valve to be connected to the third end of the second three-way valve, and the first end of the third three-way valve to be connected to the third end of the third three-way valve when cooling the battery, so that the heat exchange unit is in the battery cooling mode; When the vehicle is operated in cooling mode and the battery is cooled, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, the first end of the second three-way valve is connected to the second end of the second three-way valve and the third end of the second three-way valve, the first end of the third three-way valve is connected to the third end of the third three-way valve, and the solenoid valve is controlled to be in an off state, so that the air conditioner is in cooling mode and the heat exchange unit is in battery cooling mode; when the vehicle is operated in cooling mode, the refrigerator is operated in cooling mode, and the battery is cooled, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, the first end of the second three-way valve is connected to the third end of the third three-way valve, and the solenoid valve is controlled to be in an off state, so that the air conditioner is in cooling mode and the heat exchange unit is in battery cooling mode. One end is connected with the second end of the second three-way valve and the third end of the second three-way valve, the first end of the third three-way valve is connected with the second end of the third three-way valve and the third end of the third three-way valve, and the solenoid valve is controlled to be in an off state, so that the air conditioner is in a cooling mode, the refrigerator is in a cooling mode, and the heat exchange unit is in a battery cooling mode; when the vehicle is operated in a heating mode, the refrigerator is operated in a cooling mode, and the battery is cooled, the first end of the first three-way valve is controlled to be connected with the third end of the first three-way valve, the first end of the second three-way valve is connected with the second end of the second three-way valve and the third end of the second three-way valve, and the third three-way valve is controlled to be in an off state. The first end of the first three-way valve is connected to the second end of the third three-way valve and the third end of the third three-way valve, and the solenoid valve is controlled to be in a conducting state, so that the air conditioner is in a heating mode, the refrigerator is in a cooling mode, and the heat exchange unit is in a battery cooling mode; when the refrigerator is running in the cooling mode and cooling the battery, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, the first end of the second three-way valve is connected to the third end of the second three-way valve, and the first end of the third three-way valve is connected to the second end of the third three-way valve and the third end of the third three-way valve, so that the refrigerator is in the cooling mode and the heat exchange unit is in the battery cooling mode.

[0012] According to one embodiment of the present application, a ventilation window is provided in the refrigerator body, and the system further includes: an air volume control valve arranged corresponding to the ventilation window; the controller is also configured to control the air volume control valve and the rotation speed of the electronic fan of the refrigerator to enable ventilation between the refrigerator body and the outside world.

[0013] According to one embodiment of the present application, the first end of the third three-way valve is connected to the third end of the second three-way valve through the first throttle valve, and the controller is also configured to control the first throttle valve, the air volume control valve and the speed of the electronic fan of the refrigerator when the refrigerator is operating in refrigeration mode, so that the air temperature in the refrigerator body reaches the target temperature.

[0014] According to one embodiment of the present application, the vehicle-mounted air-conditioning and refrigerator integrated system also includes: a vehicle-mounted heating module, which is connected to the refrigerator body through a preset air duct and is used to provide warm air to the refrigerator body so that the air temperature inside the refrigerator body reaches the target temperature.

[0015] According to one embodiment of the present application, the other end of the first heat exchanger is connected to one end of the fourth heat exchanger through a second throttle valve; the other end of the second heat exchanger is connected to the second end of the second three-way valve through a third throttle valve.

[0016] In order to achieve the above-mentioned purpose, a second embodiment of the present application proposes a vehicle, including the above-mentioned vehicle air-conditioning and refrigerator integrated system.

[0017] The vehicle according to the embodiment of the present application solves the technical problems in the related art such as small refrigeration temperature adjustment range, large occupied space, uncontrollable quality of later modification, and redundancy caused by the introduction of an additional refrigeration system based on the above-mentioned vehicle air-conditioning and refrigerator integrated system.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A connection diagram of a vehicle air-conditioning and refrigerator integrated system according to an embodiment of the present application;

[0020] Figure 2 A topological diagram of a vehicle air-conditioning and refrigerator integrated system according to a specific embodiment of the present application;

[0021] Figure 3 for Figure 2 Schematic diagram of refrigerant flow when the vehicle is operating in cooling mode;

[0022] Figure 4 for Figure 2 Schematic diagram of refrigerant flow when the vehicle is operating in heating mode;

[0023] Figure 5 for Figure 2 Schematic diagram of refrigerant flow when the refrigerator is operating in cooling mode;

[0024] Figure 6 for Figure 2 Schematic diagram of refrigerant flow when the vehicle is operating in cooling mode and the refrigerator is operating in cooling mode;

[0025] Figure 7 for Figure 2 Schematic diagram of refrigerant flow when the vehicle is operating in heating mode and the refrigerator is operating in cooling mode;

[0026] Figure 8 for Figure 2 Schematic diagram of refrigerant flow when cooling the battery;

[0027] Fig. 9 for Figure 2 Schematic diagram of refrigerant flow when the vehicle is operating in cooling mode and cooling the battery;

[0028] Fig.10 for Figure 2 Schematic diagram of refrigerant flow when the vehicle is operated in cooling mode, the refrigerator is operated in cooling mode, and the battery is cooled;

[0029] Fig.11 for Figure 2 Schematic diagram of refrigerant flow when the vehicle is operating in heating mode, the refrigerator is operating in cooling mode, and the battery is cooled;

[0030] Fig.12 for Figure 2 Schematic diagram of refrigerant flow when the refrigerator is operating in cooling mode and cooling the battery;

[0031] Fig.13 It is a block diagram of a vehicle according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0033] The following describes the vehicle air-conditioning and refrigerator integrated system proposed in the embodiment of the present application with reference to the accompanying drawings.

[0034] Figure 1 This is a connection diagram of the vehicle air-conditioning and refrigerator integrated system according to an embodiment of the present application.

[0035] like Figure 1As shown, the vehicle-mounted air-conditioning and refrigerator integrated system of an embodiment of the present application may include: a first heat exchanger 10 and a second heat exchanger 20 arranged in the air-conditioning box; a third heat exchanger 30 arranged in the refrigerator box; a compressor 40, the return air port of the compressor 40 is respectively connected to one end of the second heat exchanger 20 and one end of the third heat exchanger 30, and the exhaust port of the compressor 40 is connected to one end of the first heat exchanger 10; a fourth heat exchanger 50, one end of the fourth heat exchanger 50 is respectively connected to the exhaust port of the compressor 40 and the other end of the first heat exchanger 10, and the other end of the fourth heat exchanger 50 is respectively connected to the other end of the second heat exchanger 20, the return air port of the compressor 40 and the other end of the third heat exchanger 30; a controller is configured to control the refrigerant circulation path based on the first target demand so that the air conditioner and the refrigerator are in the target working mode.

[0036] Specifically, the first heat exchanger 10 and the second heat exchanger 20 are arranged in the air-conditioning box, and form an air-conditioning refrigerant circulation system through the refrigerant passage, the compressor 40 and the fourth heat exchanger 50. For example, when the air-conditioning is in cooling mode, the air-conditioning refrigerant circulation path can be controlled as: the exhaust port of the compressor 40 → the fourth heat exchanger 50 → the second heat exchanger 20 → the return air port of the compressor 40. At this time, the fourth heat exchanger 50 serves as a condenser and the second heat exchanger 20 serves as an evaporator; when the air-conditioning is in heating mode, the air-conditioning refrigerant circulation path can be controlled as: the exhaust port of the compressor 40 → the first heat exchanger 10 → the fourth heat exchanger 50 → the return air port of the compressor 40. At this time, the first heat exchanger 10 serves as a condenser and the fourth heat exchanger 50 serves as an evaporator.

[0037] The third heat exchanger 30 is disposed in the refrigerator body and is connected to the compressor 40 and the fourth heat exchanger 50 in the air conditioning system through a refrigerant passage to form a refrigerator refrigerant circulation system. For example, when the refrigerator is in a cooling mode, the refrigerator refrigerant circulation path can be controlled to be: the exhaust port of the compressor 40 → the fourth heat exchanger 50 → the third heat exchanger 30 → the return air port of the compressor 40. At this time, the fourth heat exchanger 50 serves as a condenser and the third heat exchanger 30 serves as an evaporator.

[0038] Among them, the controller can control the refrigerant circulation path by controlling the opening and closing of the valve set on the pipeline. For example, when the first target demand received by the controller is that the vehicle is running in the cooling mode, only the refrigerant circulation path is controlled to be connected: the exhaust port of the compressor 40 → the fourth heat exchanger 50 → the second heat exchanger 20 → the return air port of the compressor 40, so that the air conditioner is in the cooling mode; when the first target demand received by the controller is that the vehicle is running in the heating mode, only the refrigerant circulation path is controlled to be connected: the exhaust port of the compressor 40 → the first heat exchanger 10 → the fourth heat exchanger 50 → the return air port of the compressor 40; when the first target demand received by the controller is that the vehicle is running in the cooling mode and the refrigerator is running in the cooling mode, the following two refrigerant circulation paths are controlled to be connected: the exhaust port of the compressor 40 → the fourth heat exchanger 50 → the second heat exchanger 20 → the return air port of the compressor 40, the exhaust port of the compressor 40 → the fourth heat exchanger 50 → the third heat exchanger 30 → the return air port of the compressor 40. Therefore, the controller can control the refrigerant circulation path to put the air conditioner and refrigerator in the target working mode to meet user needs.

[0039] Furthermore, the refrigerator body of the car refrigerator can be realized by using the trunk storage pit (spare tire pit) in combination with insulation materials. The insulation layer of the refrigerator body takes into account the modular installation interface to achieve optional configurations between different vehicle models. For example, if the car refrigerator is not configured, the refrigerant circuit connected to the refrigerator body can be blocked to facilitate later modification.

[0040] Therefore, this embodiment can utilize the automobile air-conditioning refrigerant system, and by adding some pipes, valve bodies and other components, realize the front-mounted vehicle refrigerator design, forming an integrated vehicle air-conditioning refrigerator system. The system can be used for different vehicle types, and can cover vehicles with different energy types through topology. At the same time, it solves the problems existing in the related technology, such as the small refrigeration and temperature adjustment range of the refrigerator, the large space occupied, the uncontrollable quality of the later modification, and the introduction of an additional refrigeration system.

[0041] Combination Figure 2 As shown, in one embodiment of the present application, the vehicle air-conditioning refrigerator integrated system also includes: a first three-way valve 60, a first end of the first three-way valve 60 is connected to the exhaust port of the compressor 40, a second end of the first three-way valve 60 is connected to one end of the fourth heat exchanger 50, and a third end of the first three-way valve 60 is connected to one end of the first heat exchanger 10.

[0042] That is, when the controller controls the first end of the first three-way valve 60 to be connected only to the second end of the first three-way valve 60, the refrigerant flows into the fourth heat exchanger 50 through the exhaust port of the compressor 40. When the controller controls the first end of the first three-way valve 60 to be connected only to the third end of the first three-way valve 60, the refrigerant flows into the first heat exchanger 10 through the exhaust port of the compressor 40, and flows into the fourth heat exchanger 50 after passing through the first heat exchanger 10.

[0043] In one embodiment of the present application, the vehicle-mounted air-conditioning and refrigerator integrated system further includes: a second three-way valve 70, wherein the first end of the second three-way valve 70 is connected to the other end of the fourth heat exchanger 50, the second end of the second three-way valve 70 is connected to the other end of the second heat exchanger 20 and to the return air port of the compressor 40 through the solenoid valve 80, respectively, and the third end of the second three-way valve 70 is connected to the other end of the third heat exchanger 30; the controller is configured to, when the vehicle is operating in a cooling mode, control the first end of the first three-way valve 60 to be connected to the second end of the first three-way valve 60, the first end of the second three-way valve 70 to be connected to the second end of the second three-way valve 70, and control the solenoid valve 80 to be in a disconnected state so that the air conditioner is in a cooling mode; when the vehicle is operating in a heating mode, control the first end of the first three-way valve 60 to be connected to the third end of the first three-way valve 60, the first end of the second three-way valve 70 to be connected to the second end of the second three-way valve 70, and control the solenoid valve 80 to be in a conducting state so that the air conditioner is in a heating mode; When the refrigerator is operated in the cooling mode, the first end of the first three-way valve 60 is controlled to be connected to the second end of the first three-way valve 60, and the first end of the second three-way valve 70 is controlled to be connected to the third end of the second three-way valve 70, so that the refrigerator is in the cooling mode; when the vehicle is operated in the cooling mode and the refrigerator is operated in the cooling mode, the first end of the first three-way valve 60 is controlled to be connected to the second end of the first three-way valve 60, the first end of the second three-way valve 70 is controlled to be connected to the second end of the second three-way valve 70 and the third end of the second three-way valve 70, and the solenoid valve 80 is controlled to be in the disconnected state, so that the air conditioner is in the cooling mode and the refrigerator is in the cooling mode; when the vehicle is operated in the heating mode and the refrigerator is operated in the cooling mode, the first end of the first three-way valve 60 is controlled to be connected to the third end of the first three-way valve 60, the first end of the second three-way valve 70 is controlled to be connected to the second end of the second three-way valve 70 and the third end of the second three-way valve 70, and the solenoid valve 80 is controlled to be in the conducting state, so that the air conditioner is in the heating mode and the refrigerator is in the cooling mode.

[0044] Specifically, when the controller controls the first end of the second three-way valve 70 to be connected only to the second end of the second three-way valve 70, and the solenoid valve 80 is in a closed state, the refrigerant passing through the fourth heat exchanger 50 flows into the second heat exchanger 20; when the controller controls the first end of the second three-way valve 70 to be connected only to the second end of the second three-way valve 70, and the solenoid valve 80 is in a conducting state, the refrigerant passing through the fourth heat exchanger 50 flows into the return air port of the compressor 40 through the solenoid valve 80; when the controller controls the first end of the second three-way valve 70 to be connected only to the third end of the second three-way valve 70, the refrigerant passing through the fourth heat exchanger 50 flows into the third heat exchanger 30; when the controller controls the first end of the second three-way valve 70 to be connected only to the third end of the second three-way valve 70 When one end is connected to the second end of the second three-way valve 70 and the third end of the second three-way valve 70, and the solenoid valve 80 is in the disconnected state, the refrigerant passing through the fourth heat exchanger 50 flows into the second heat exchanger 20 and the third heat exchanger 30 respectively, and the flow distribution can be adjusted by the valve opening; when the controller controls the first end of the second three-way valve 70 to be connected to the second end of the second three-way valve 70 and the third end of the second three-way valve 70, and the solenoid valve 80 is in the conducting state, the refrigerant passing through the fourth heat exchanger 50 flows into the return air port of the compressor 40 through the solenoid valve 80 on the one hand, and flows into the third heat exchanger 30 on the other hand, and the flow distribution can be adjusted by the valve opening. Among them, the solenoid valve 80 can be a normally closed valve.

[0045] In one embodiment of the present application, the other end of the first heat exchanger 10 is connected to one end of the fourth heat exchanger 50 through the second throttle valve 140; the other end of the second heat exchanger 20 is connected to the second end of the second three-way valve 70 through the third throttle valve 150, so as to adjust the flow rate by controlling the opening of the second throttle valve 140 and the third throttle valve 150.

[0046] The following is an example of how the controller controls the refrigerant circulation path to put the air conditioner and the refrigerator in the target working mode, with reference to the accompanying drawings.

[0047] When the vehicle is running in cooling mode, Figure 3 As shown, this mode realizes separate cooling of the passenger compartment, and the refrigerant flows as follows: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → third throttle valve 150 → second heat exchanger 20 → compressor 40.

[0048] When the car is running in heating mode, Figure 4 As shown, this mode realizes separate heating of the passenger compartment, and the refrigerant flows as follows: compressor 40 → first three-way valve 60 → first heat exchanger 10 → second throttle valve 140 → fourth heat exchanger 50 → second three-way valve 70 → solenoid valve 80 (open) → compressor 40.

[0049] When the refrigerator is running in cooling mode, Figure 5As shown, this mode realizes refrigerator independent refrigeration, and the refrigerant flows as follows: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → third heat exchanger 30 → compressor 40.

[0050] When the car is running in cooling mode and the refrigerator is running in cooling mode, Figure 6 As shown, this mode realizes simultaneous cooling of the passenger compartment and the refrigerator, and the refrigerant flow and pressure can be adjusted by the second three-way valve 70, the first throttle valve 130, and the third throttle valve 150 to realize the cooling capacity distribution of the passenger compartment and the refrigerator.

[0051] The passenger compartment refrigerant flow direction (air conditioning refrigerant flow direction) is: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → third throttle valve 150 → second heat exchanger 20 → compressor 40;

[0052] The flow direction of the refrigerator refrigerant is: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third heat exchanger 30 → compressor 40.

[0053] When the car is in heating mode and the refrigerator is in cooling mode, Figure 7 As shown, this mode realizes heating of the passenger compartment and cooling of the refrigerator in a low temperature environment, and the refrigerant flow and pressure are adjusted by the second three-way valve 70, the first throttle valve 130, and the solenoid valve 80 to realize the cooling capacity distribution of the refrigerator.

[0054] When the solenoid valve 80 is in the on state:

[0055] The flow direction of the passenger compartment heating refrigerant is: compressor 40 → first three-way valve 60 → first heat exchanger 10 → second throttle valve 140 → fourth heat exchanger 50 → second three-way valve 70 → solenoid valve 80 → compressor 40;

[0056] Refrigerator refrigeration refrigerant flow direction: compressor 40 → first three-way valve 60 → first heat exchanger 10 → second throttle valve 140 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third heat exchanger 30 → compressor 40;

[0057] When the solenoid valve 80 is in the disconnected state:

[0058] The refrigerant flow direction for in-car heating and refrigerator cooling is the same: compressor 40 → first three-way valve 60 → first heat exchanger 10 → second throttle valve 140 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third heat exchanger 30 → compressor 40.

[0059] In one embodiment of the present application, the vehicle-mounted air-conditioning and refrigerator integrated system also includes: a heat exchange unit 90 arranged corresponding to the vehicle battery, one end of the heat exchange unit 90 is connected to the other end of the fourth heat exchanger 50, and the other end of the heat exchange unit 90 is connected to the return air port of the compressor 40, and the heat exchange unit 90 is configured to perform heat exchange on the battery of the vehicle; the controller is also configured to control the refrigerant circulation path based on the second target demand so that the air conditioner, refrigerator and heat exchange unit 90 are in the target working mode.

[0060] Specifically, the heat exchange unit 90 may be a heat exchange plate close to the battery, which cools or heats the battery by passing the refrigerant through the battery for heat exchange. The controller may switch the working state by controlling the on and off of the refrigerant passage connected to the heat exchange unit 90.

[0061] In one embodiment of the present application, the vehicle air-conditioning refrigerator integrated system further includes: a third three-way valve 110, a first end of the third three-way valve 110 is connected to a third end of the second three-way valve 70, a second end of the third three-way valve 110 is connected to the other end of the third heat exchanger 30, and a third end of the third three-way valve 110 is connected to one end of the heat exchange unit 90; the controller is configured to,

[0062] In the case of cooling the battery, the first end of the first three-way valve 60 is controlled to be connected to the second end of the first three-way valve 60, the first end of the second three-way valve 70 is controlled to be connected to the third end of the second three-way valve 70, and the first end of the third three-way valve 110 is controlled to be connected to the third end of the third three-way valve 110, so that the heat exchange unit 90 is in the battery cooling mode;

[0063] When the vehicle is operated in cooling mode and the battery is cooled, the first end of the first three-way valve 60 is controlled to be connected to the second end of the first three-way valve 60, the first end of the second three-way valve 70 is connected to the second end of the second three-way valve 70 and the third end of the second three-way valve 70, the first end of the third three-way valve 110 is connected to the third end of the third three-way valve 110, and the solenoid valve 80 is controlled to be in an off state, so that the air conditioner is in cooling mode and the heat exchange unit 90 is in battery cooling mode;

[0064] When the vehicle is operated in the cooling mode, the refrigerator is operated in the cooling mode, and the battery is cooled, the first end of the first three-way valve 60 is controlled to be connected to the second end of the first three-way valve 60, the first end of the second three-way valve 70 is connected to the second end of the second three-way valve 70 and the third end of the second three-way valve 70, the first end of the third three-way valve 110 is connected to the second end of the third three-way valve 110 and the third end of the third three-way valve 110, and the solenoid valve 80 is controlled to be in the disconnected state, so that the air conditioner is in the cooling mode, the refrigerator is in the cooling mode, and the heat exchange unit 90 is in the battery cooling mode;

[0065] When the vehicle is operated in heating mode, the refrigerator is operated in cooling mode, and the battery is cooled, the first end of the first three-way valve 60 is controlled to be connected to the third end of the first three-way valve 60, the first end of the second three-way valve 70 is connected to the second end of the second three-way valve 70 and the third end of the second three-way valve 70, the first end of the third three-way valve 110 is connected to the second end of the third three-way valve 110 and the third end of the third three-way valve 110, and the solenoid valve 80 is controlled to be in a conducting state, so that the air conditioner is in heating mode, the refrigerator is in cooling mode, and the heat exchange unit 90 is in battery cooling mode;

[0066] When the refrigerator is operating in refrigeration mode and cooling the battery, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the third end of the second three-way valve, the first end of the third three-way valve is controlled to be connected to the second end of the third three-way valve and the third end of the third three-way valve, so that the refrigerator is in refrigeration mode and the heat exchange unit is in battery cooling mode.

[0067] Specifically, when the controller controls the first end of the third three-way valve 110 to be connected only with the second end of the third three-way valve 110, the refrigerant flowing out through the second three-way valve 70 can flow into the third heat exchanger 30 through the third three-way valve 110; when the controller controls the first end of the third three-way valve 110 to be connected only with the third end of the third three-way valve 110, the refrigerant flowing out through the second three-way valve 70 can flow into the heat exchange unit 90 through the third three-way valve 110 to control the temperature of the battery; when the controller controls the first end of the third three-way valve 110 to be connected with the second end of the third three-way valve 110 and the third end of the third three-way valve 110, the refrigerant flowing out through the second three-way valve 70 can flow into the heat exchange unit 90 and the third heat exchanger 30 respectively through the third three-way valve 110.

[0068] In one embodiment of the present application, a first throttle valve 130 is provided between the second three-way valve 70 and the third three-way valve 110 to adjust the refrigerant flow rate by means of the first throttle valve 130 .

[0069] The following is an example of how the controller controls the refrigerant circulation path to put the air conditioner, refrigerator and heat exchange unit 90 in the target working mode, with reference to the accompanying drawings.

[0070] In the case of cooling the battery, Figure 8 As shown, this mode realizes independent cooling of the battery, and the refrigerant flows as follows: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → heat exchange unit 90 → compressor 40.

[0071] When the vehicle is running in cooling mode and the battery is cooled, Fig. 9As shown, this mode realizes simultaneous cooling of the passenger compartment and the battery, and the refrigerant flow and pressure are adjusted by the second three-way valve 70, the first throttle valve 130, and the third throttle valve 150 to realize the cooling capacity distribution of the passenger compartment and the battery.

[0072] The flow direction of the refrigerant in the passenger compartment is: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → third throttle valve 150 → second heat exchanger 20 → compressor 40;

[0073] The refrigerant flow direction at the battery is: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → heat exchange unit 90 → compressor 40 .

[0074] When the vehicle is in cooling mode, the refrigerator is in cooling mode, and the battery is cooled, Fig.10 As shown, this mode realizes simultaneous cooling of the passenger compartment, refrigerator, and battery, and adjusts the refrigerant flow and pressure through the second three-way valve 70, the first throttle valve 130, and the third throttle valve 150 to realize the cooling capacity distribution of the passenger compartment, refrigerator, and battery.

[0075] The flow direction of the refrigerant in the passenger compartment is: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → third throttle valve 150 → second heat exchanger 20 → compressor 40;

[0076] Refrigerator refrigerant flow direction: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → third heat exchanger 30 → compressor 40.

[0077] The refrigerant flow direction at the battery is: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → heat exchange unit 90 → compressor 40 .

[0078] When the vehicle is in heating mode, the refrigerator is in cooling mode, and the battery is cooled, Fig.11 As shown, this mode realizes heating of the passenger compartment, cooling of the refrigerator and the battery in a low temperature environment, and adjusts the refrigerant flow and pressure through the second three-way valve 70, the first throttle valve 130 and the solenoid valve 80 to realize the distribution of cooling capacity of the refrigerator and the battery, and the electronic fan in the air-conditioning box is started to realize the delivery of hot air in the car.

[0079] When the solenoid valve 80 is in the on state:

[0080] The flow direction of the passenger compartment heating refrigerant is: compressor 40 → first three-way valve 60 → first heat exchanger 10 → second throttle valve 140 → fourth heat exchanger 50 → second three-way valve 70 → solenoid valve 80 → compressor 40;

[0081] Refrigerator refrigeration refrigerant flow direction: compressor 40 → first three-way valve 60 → first heat exchanger 10 → second throttle valve 140 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → third heat exchanger 30 → compressor 40;

[0082] The refrigerant flow direction at the battery is: compressor 40 → first three-way valve 60 → first heat exchanger 10 → second throttle valve 140 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → heat exchange unit 90 → compressor 40;

[0083] When the solenoid valve is in the off state:

[0084] Refrigerator refrigeration refrigerant flow (including in-car heating): compressor 40 → first three-way valve 60 → first heat exchanger 10 → second throttle valve 140 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → third heat exchanger 30 → compressor 40;

[0085] Flow direction of the refrigerant at the battery (including in-vehicle heating): compressor 40 → first three-way valve 60 → first heat exchanger 10 → second throttle valve 140 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → heat exchange unit 90 → compressor 40.

[0086] When the refrigerator is running in cooling mode and cooling the battery, Fig.12 As shown, this mode realizes simultaneous cooling of the refrigerator and the battery, and the refrigerant flow and pressure are adjusted by the second three-way valve 70, the first throttle valve 130, and the third three-way valve 110 to realize the cooling capacity distribution of the refrigerator and the battery.

[0087] The flow direction of the refrigerator refrigeration refrigerant is: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → third heat exchanger 30 → compressor 40.

[0088] The refrigerant flow direction at the battery is: compressor 40 → first three-way valve 60 → fourth heat exchanger 50 → second three-way valve 70 → first throttle valve 130 → third three-way valve 110 → heat exchange unit 90 → compressor 40 .

[0089] It is understandable that when the above refrigerator is operated in the cooling mode (such as Figure 5 ), when the car is running in cooling mode and the refrigerator is running in cooling mode ( Figure 6 ) and when the vehicle is operating in heating mode and the refrigerator is operating in cooling mode ( Figure 7), the battery is not cooled, and the controller controls the first end of the third three-way valve 110 to be connected only to the second end of the third three-way valve 110.

[0090] In one embodiment of the present application, a ventilation window is provided in the refrigerator body, and the vehicle-mounted air-conditioning and refrigerator integrated system further includes: an air volume control valve 120 arranged corresponding to the ventilation window; the controller is also configured to control the air volume control valve 120 and the rotation speed of the electronic fan of the refrigerator to enable ventilation between the refrigerator body and the outside world.

[0091] That is, when the refrigerator is ventilated, the air volume control valve 120 and the speed of the refrigerator's electronic fan 12 are controlled to achieve ventilation between the refrigerator body and the outside air of the vehicle, thereby adjusting the temperature of the refrigerator based on the outside air. The refrigerator ventilation can be turned on separately or simultaneously with the above mode, and there is no specific limitation.

[0092] In one embodiment of the present application, the first end of the third three-way valve 110 is connected to the third end of the second three-way valve 70 through the first throttle valve 130, and the controller is also configured to control the first throttle valve 130, the air volume control valve 120 and the speed of the electronic fan of the refrigerator when the refrigerator is operating in a refrigeration mode so that the air temperature in the refrigerator body reaches the target temperature.

[0093] Specifically, in the above refrigerator ventilation and other modes ( Figure 3-Figure 12 When used in combination with any one of the above, for example: in summer when cooling the car, the refrigerator can inhale a large amount of outside air to maintain a constant temperature; in winter when heating the car, the refrigerator can inhale a large amount of outside air to maintain a constant temperature (the third heat exchanger 30 may not be started at this time). The controller controls the first throttle valve 130 to adjust the flow rate and pressure of the refrigerant flowing into the third heat exchanger 30 to control the refrigeration effect based on the refrigerant of the third heat exchanger 30, and adjusts the air volume of the outside air entering the refrigerator body by controlling the air volume control valve 120 and the speed of the refrigerator's electronic fan, thereby adjusting the mixed air ratio of the outside air and the third evaporator, and adjusting the air temperature in the refrigerator body to achieve a constant temperature effect.

[0094] In one embodiment of the present application, the vehicle-mounted air-conditioning and refrigerator integrated system also includes: a vehicle-mounted heating module, which is connected to the refrigerator body through a preset air duct, and is used to provide warm air to the refrigerator body so that the air temperature inside the refrigerator body reaches the target temperature.

[0095] Specifically, the vehicle-mounted heating module may be a PTC (Positive Temperature Coefficient) heating module. When the refrigerator box needs to be heated, the vehicle-mounted heating module is driven to provide warm air into the refrigerator box to achieve the refrigerator heating function.

[0096] As a specific embodiment of the present application, a vehicle air-conditioning and refrigerator integrated system is as follows: Figure 2 As shown, the main components of the present invention include: a compressor 40, a first three-way valve 60 (arranged at the exhaust port of the compressor, as a reversing valve), a second throttle valve 140 (used in heat pump mode), a second heat exchanger 20, a fourth heat exchanger 50 (outside the vehicle), an electronic fan 6 (outside the vehicle), a second three-way valve 70 (arranged at the outlet of the fourth heat exchanger 50, as a proportional reversing valve), a first throttle valve 130 (arranged in the refrigerator refrigerant circuit), a third three-way valve 110 (arranged in the refrigerator refrigerant circuit, as a proportional reversing valve), a heat exchange unit 90 (arranged corresponding to the battery), an air volume control valve 120, a third heat exchanger 30, a third throttle valve 150 (arranged in the air-conditioning refrigerant circuit), a solenoid valve 80, and a first heat exchanger 10 (inside the vehicle).

[0097] The above system is mainly suitable for new energy vehicles (low temperature heating relies on heat pump circuit). Fuel vehicles can adjust the heat pump air conditioning circuit topology based on the above architecture. The integrated system of vehicle air conditioning and refrigerator can realize the following working modes: independent in-vehicle cooling ( Figure 3 ); Independent in-car heating ( Figure 4 ), independent refrigerator refrigeration ( Figure 5 ), independent battery cooling ( Figure 8 ), in-car refrigeration + refrigerator refrigeration ( Figure 6 ), in-car cooling + battery cooling ( Fig. 9 ), in-car cooling + refrigerator cooling + battery cooling ( Fig.10 ), car heating + refrigerator cooling ( Figure 7 ), car heating + refrigerator cooling + battery cooling ( Fig.11 ), refrigerator refrigeration + battery refrigeration ( Fig.12 ), refrigerator ventilation.

[0098] This embodiment mainly highlights the refrigeration function of the refrigerator circuit. The in-car heating PTC (wind heat) is located in the air-conditioning box, roughly near the electronic fan of the air-conditioning. The battery circuit and heating PTC components that are not related to the refrigerant circuit connection are omitted in the drawing. Based on this embodiment, the battery heating mode (heat pump mode, that is, the air-conditioning is in heating mode, based on the first heat exchanger 10 and the battery cooling circuit for heat exchange) and the refrigerator heating mode (introducing warm air through the air duct refrigerator box) can be topologically configured.

[0099] This embodiment utilizes the automobile air conditioning refrigerant system and realizes the front-mounted vehicle refrigerator design by adding some pipes, valve bodies and other components to form an integrated vehicle air conditioning and refrigerator system. The system can be used for different vehicle types and can cover vehicles with different energy types through topology.

[0100] In summary, according to the vehicle air-conditioning refrigerator integrated system of the embodiment of the present application, the system includes a first heat exchanger and a second heat exchanger arranged in the air-conditioning box, a third heat exchanger arranged in the refrigerator box, a compressor, a fourth heat exchanger and a controller, wherein the return air port of the compressor is respectively connected to one end of the second heat exchanger and one end of the third heat exchanger, the exhaust port of the compressor is connected to one end of the first heat exchanger, one end of the fourth heat exchanger is respectively connected to the exhaust port of the compressor and the other end of the first heat exchanger, the other end of the fourth heat exchanger is respectively connected to the other end of the second heat exchanger, the return air port of the compressor and the other end of the third heat exchanger, and the controller controls the refrigerant circulation path based on the first target demand so that the air conditioner and the refrigerator are in the target working mode. As a result, the system realizes the design of a front-mounted vehicle refrigerator based on the vehicle air-conditioning refrigerant system, which solves the technical problems in the related art of small refrigeration temperature adjustment range, large occupied space, uncontrollable quality of later modification, and redundancy caused by the introduction of additional refrigeration systems.

[0101] Corresponding to the above embodiments, the present application also proposes a vehicle.

[0102] like Fig.13 As shown, the vehicle 1000 of the embodiment of the present application includes the above-mentioned vehicle air-conditioning and refrigerator integrated system 100.

[0103] The vehicle according to the embodiment of the present application solves the technical problems in the related art such as small refrigeration temperature adjustment range, large occupied space, uncontrollable quality of later modification, and redundancy caused by the introduction of an additional refrigeration system based on the above-mentioned vehicle air-conditioning and refrigerator integrated system.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0105] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0106] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0107] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A vehicle air-conditioning and refrigerator integrated system, characterized in that: The system comprises: A first heat exchanger and a second heat exchanger are disposed in the air conditioning box; A third heat exchanger disposed in the refrigerator body; A compressor, wherein a return air port of the compressor is connected to one end of the second heat exchanger and one end of the third heat exchanger respectively, and an exhaust port of the compressor is connected to one end of the first heat exchanger; a fourth heat exchanger, one end of the fourth heat exchanger being connected to the exhaust port of the compressor and the other end of the first heat exchanger, respectively, and the other end of the fourth heat exchanger being connected to the other end of the second heat exchanger, the return air port of the compressor and the other end of the third heat exchanger, respectively; The controller is configured to control a refrigerant circulation path based on a first target demand so that the air conditioner and the refrigerator are in a target operating mode.

2. The vehicle air-conditioning and refrigerator integrated system according to claim 1, characterized in that: The system further comprises: A first three-way valve, wherein a first end of the first three-way valve is connected to an exhaust port of the compressor, a second end of the first three-way valve is connected to one end of the fourth heat exchanger, and a third end of the first three-way valve is connected to one end of the first heat exchanger.

3. The vehicle air-conditioning and refrigerator integrated system according to claim 2, characterized in that: The system further comprises: a second three-way valve, wherein a first end of the second three-way valve is connected to the other end of the fourth heat exchanger, a second end of the second three-way valve is connected to the other end of the second heat exchanger and to the return air port of the compressor through a solenoid valve, and a third end of the second three-way valve is connected to the other end of the third heat exchanger; The controller is configured to, when the vehicle is operated in a cooling mode, control the first end of the first three-way valve to be connected to the second end of the first three-way valve, the first end of the second three-way valve to be connected to the second end of the second three-way valve, and control the solenoid valve to be in an off state, so that the air conditioner is in a cooling mode; When the vehicle is operated in a heating mode, the first end of the first three-way valve is controlled to be connected to the third end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the second end of the second three-way valve, and the solenoid valve is controlled to be in a conducting state, so that the air conditioner is in a heating mode; When the refrigerator is operated in a refrigeration mode, controlling the first end of the first three-way valve to be connected to the second end of the first three-way valve, and the first end of the second three-way valve to be connected to the third end of the second three-way valve, so that the refrigerator is in the refrigeration mode; When the vehicle is operated in a cooling mode and the refrigerator is operated in a cooling mode, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the second end of the second three-way valve and the third end of the second three-way valve, and the solenoid valve is controlled to be in an off state, so that the air conditioner is in a cooling mode and the refrigerator is in a cooling mode; When the vehicle is operating in heating mode and the refrigerator is operating in cooling mode, the first end of the first three-way valve is controlled to be connected to the third end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the second end of the second three-way valve and the third end of the second three-way valve, and the solenoid valve is controlled to be in a conducting state, so that the air conditioner is in heating mode and the refrigerator is in cooling mode.

4. The vehicle air-conditioning and refrigerator integrated system according to claim 3, characterized in that: The system further comprises: a heat exchange unit provided corresponding to the battery of the vehicle, one end of the heat exchange unit being connected to the other end of the fourth heat exchanger, the other end of the heat exchange unit being connected to the return air port of the compressor, and the heat exchange unit being configured to perform heat exchange on the battery of the vehicle; The controller is further configured to control the refrigerant circulation path based on a second target demand so that the air conditioner, the refrigerator, and the heat exchange unit are in a target operating mode.

5. The vehicle air-conditioning and refrigerator integrated system according to claim 4, characterized in that: The system further comprises: a third three-way valve, wherein a first end of the third three-way valve is connected to a third end of the second three-way valve, a second end of the third three-way valve is connected to the other end of the third heat exchanger, and a third end of the third three-way valve is connected to one end of the heat exchange unit; The controller is configured to, in the case of cooling the battery, control the first end of the first three-way valve to be connected to the second end of the first three-way valve, the first end of the second three-way valve to be connected to the third end of the second three-way valve, and the first end of the third three-way valve to be connected to the third end of the third three-way valve, so that the heat exchange unit is in a battery cooling mode; When the vehicle is operated in cooling mode and the battery is cooled, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the second end of the second three-way valve and the third end of the second three-way valve, the first end of the third three-way valve is controlled to be connected to the third end of the third three-way valve, and the solenoid valve is controlled to be in an off state, so that the air conditioner is in cooling mode and the heat exchange unit is in battery cooling mode; When the vehicle is operated in cooling mode, the refrigerator is operated in cooling mode, and the battery is cooled, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the second end of the second three-way valve and the third end of the second three-way valve, the first end of the third three-way valve is controlled to be connected to the second end of the third three-way valve and the third end of the third three-way valve, and the solenoid valve is controlled to be in an off state, so that the air conditioner is in cooling mode, the refrigerator is in cooling mode, and the heat exchange unit is in battery cooling mode; When the vehicle is operated in heating mode, the refrigerator is operated in cooling mode, and the battery is cooled, the first end of the first three-way valve is controlled to be connected to the third end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the second end of the second three-way valve and the third end of the second three-way valve, the first end of the third three-way valve is controlled to be connected to the second end of the third three-way valve and the third end of the third three-way valve, and the solenoid valve is controlled to be in a conducting state, so that the air conditioner is in heating mode, the refrigerator is in cooling mode, and the heat exchange unit is in battery cooling mode; When the refrigerator is operating in refrigeration mode and cooling the battery, the first end of the first three-way valve is controlled to be connected to the second end of the first three-way valve, the first end of the second three-way valve is controlled to be connected to the third end of the second three-way valve, and the first end of the third three-way valve is controlled to be connected to the second end of the third three-way valve and the third end of the third three-way valve, so that the refrigerator is in refrigeration mode and the heat exchange unit is in battery refrigeration mode.

6. The vehicle air-conditioning and refrigerator integrated system according to claim 5, characterized in that: The refrigerator body is provided with a ventilation window, and the system further comprises: An air volume control valve provided corresponding to the ventilation window; The controller is also configured to control the air volume control valve and the rotation speed of the electronic fan of the refrigerator to achieve ventilation between the refrigerator body and the outside.

7. The vehicle air-conditioning and refrigerator integrated system according to claim 6, characterized in that: The first end of the third three-way valve is connected to the third end of the second three-way valve through the first throttle valve. The controller is also configured to control the first throttle valve, the air volume control valve and the rotation speed of the electronic fan of the refrigerator when the refrigerator is operating in a cooling mode so that the air temperature in the refrigerator body reaches a target temperature.

8. The vehicle air-conditioning and refrigerator integrated system according to claim 7, characterized in that: The system further comprises: The vehicle-mounted heating module is connected to the refrigerator body through a preset air duct and is used to provide warm air to the refrigerator body so that the air temperature in the refrigerator body reaches the target temperature.

9. The vehicle air-conditioning and refrigerator integrated system according to any one of claims 3 to 8, characterized in that: The other end of the first heat exchanger is connected to one end of the fourth heat exchanger through a second throttle valve; The other end of the second heat exchanger is connected to the second end of the second three-way valve through a third throttle valve.

10. A vehicle, characterized in that: It comprises the vehicle air-conditioning and refrigerator integrated system according to any one of claims 1-9.

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