Vehicle thermal management system and vehicle

Abstract

The utility model relates to a vehicle thermal management system and a vehicle, the system comprises a cockpit heating module, a cockpit refrigeration module and a battery pack thermal management module, and heat exchange is performed between the battery pack thermal management module and the cockpit refrigeration module through a plate heat exchanger; the cockpit heating module comprises a liquid conveying mechanism, a liquid heating mechanism, a liquid supplementing mechanism and a heat dissipation mechanism; the liquid conveying mechanism, the liquid heating mechanism and the heat dissipation mechanism form a cockpit heating loop, and the liquid conveying mechanism is used for driving liquid in the liquid conveying pipeline to sequentially flow through the liquid heating mechanism and the heat dissipation mechanism and flow back to the liquid conveying mechanism from a liquid output port of the heat dissipation mechanism. By utilizing the technical scheme provided by the invention, a cockpit heating function, a cockpit refrigerating function and a battery pack heat management function can be integrated on the vehicle, so that the driving experience feeling of a driver can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal management, in particular to a vehicle thermal management system and a vehicle. BACKGROUND

[0002] The vehicle thermal management system is an important part of a new energy vehicle, mainly responsible for controlling and regulating the temperature of various components of the vehicle to ensure that they work within the optimal temperature range, thereby improving the performance, safety and energy efficiency of the vehicle. Specifically, the vehicle thermal management system can effectively prevent battery thermal runaway, ensure the safety of an electric vehicle, ensure that the battery works in the best temperature range, and improve the performance of the battery. In addition, it can also reduce the temperature of the motor, improve the efficiency of the motor, reduce energy loss, and improve the driving experience and passenger satisfaction. However, there is no management system that integrates battery pack cooling mode, air conditioning box refrigeration and air conditioning box heating in the existing vehicle thermal management system. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problems of the prior art, the present application provides a vehicle thermal management system and a vehicle technical solution, that is, the present application sets up a cockpit heating module, a cockpit refrigeration module and a battery pack thermal management module to refrigerate and heat the cockpit and exchange energy with the battery pack, thereby integrating the cockpit heating function, the cockpit refrigeration function and the battery pack thermal management function on the vehicle, thereby improving the driving experience of the driver.

[0004] On the one hand, the present application provides a vehicle thermal management system, which comprises a cockpit heating module, a cockpit refrigeration module and a battery pack thermal management module, wherein the battery pack thermal management module and the cockpit refrigeration module exchange heat through a plate heat exchanger.

[0005] The cockpit heating module comprises a liquid conveying mechanism, a liquid heating mechanism, a liquid supplementing mechanism and a heat dissipation mechanism. The liquid driving end of the liquid conveying mechanism is connected with the liquid input end of the liquid heating mechanism through a liquid conveying pipeline. The liquid input end of the liquid conveying mechanism is connected with the liquid output port of the heat dissipation mechanism through a liquid conveying pipeline. The liquid output end of the liquid heating mechanism is connected with the liquid input port of the heat dissipation mechanism through a liquid conveying pipeline. The heat dissipation mechanism is located in the cockpit. The liquid supplementing mechanism is arranged on the liquid conveying pipeline between the liquid conveying mechanism and the heat dissipation mechanism.

[0006] The liquid conveying mechanism, the liquid heating mechanism and the heat dissipation mechanism constitute a cockpit heating loop. The liquid conveying mechanism is used to drive the liquid in the liquid conveying pipeline to flow through the liquid heating mechanism and the heat dissipation mechanism in sequence, and then flow back to the liquid conveying mechanism from the liquid output port of the heat dissipation mechanism.

[0007] Further, the cockpit refrigeration module comprises a liquid compression mechanism, a condensation mechanism, a first electronic expansion valve and an evaporation mechanism;

[0008] The high-pressure output end of the liquid compression mechanism is connected with the input end of the condensation mechanism, the output end of the condensation mechanism is connected with the input end of the evaporation mechanism through the first electronic expansion valve, the output end of the evaporation mechanism is connected with the low-pressure input end of the liquid compression mechanism, the evaporation mechanism is located in the cockpit, and the liquid compression mechanism, the condensation mechanism, the evaporation mechanism and the first electronic expansion valve constitute a cockpit refrigeration loop, which is used for refrigerating the cockpit.

[0009] Further, the cockpit refrigeration module further comprises a second electronic expansion valve;

[0010] The output end of the condensation mechanism is connected with the first input port of the plate heat exchanger through the second electronic expansion valve, the first output port of the plate heat exchanger is connected with the low-pressure input end of the liquid compression mechanism, the liquid compression mechanism, the condensation mechanism, the second electronic expansion valve and the plate heat exchanger constitute a battery pack heat exchange loop, which is used for exchanging heat with the battery pack heat management module through the plate heat exchanger.

[0011] Further, the battery pack heat management module comprises a battery cooling water pump and a cooling liquid supplement mechanism;

[0012] The driving output end of the battery cooling water pump is connected with the second input port of the plate heat exchanger through a liquid delivery pipeline, the second output port of the plate heat exchanger is connected with the liquid input port of the battery pack through a liquid delivery pipeline, the liquid output port of the battery pack is connected with the liquid input end of the battery cooling water pump through a liquid delivery pipeline, and the cooling liquid supplement mechanism is arranged on the liquid delivery pipeline between the plate heat exchanger and the battery pack;

[0013] The battery cooling water pump and the plate heat exchanger constitute a battery pack cooling loop, which is used for cooling the battery pack.

[0014] Further, a first pressure and temperature detection mechanism is further arranged on the cockpit refrigeration loop, the first pressure and temperature detection mechanism is arranged on the liquid delivery pipeline between the evaporation mechanism and the liquid compression mechanism, and the first pressure and temperature detection mechanism is used for detecting the pipeline pressure between the evaporation mechanism and the liquid compression mechanism and the temperature of the liquid in the liquid delivery pipeline.

[0015] Further, the battery pack heat exchange circuit is further provided with a second pressure and temperature detection mechanism, which is arranged on the liquid delivery pipeline between the plate heat exchanger and the liquid compression mechanism, and is used for detecting the pipeline pressure and the temperature of the liquid in the liquid delivery pipeline between the plate heat exchanger and the liquid compression mechanism.

[0016] Further, the battery pack cooling circuit is further provided with a first temperature detection mechanism and a second temperature detection mechanism, the first temperature detection mechanism is arranged on the liquid delivery pipeline between the battery cooling water pump and the battery pack, and the second temperature detection mechanism is arranged on the liquid delivery pipeline between the plate heat exchanger and the battery pack, the first temperature detection mechanism is used for detecting the temperature of the liquid in the liquid delivery pipeline between the battery cooling water pump and the battery pack, and the second temperature detection mechanism is used for detecting the temperature of the liquid in the liquid delivery pipeline between the plate heat exchanger and the battery pack.

[0017] Further, the cockpit refrigeration circuit is further provided with a pressure detection mechanism, which is arranged on the gas delivery pipeline between the liquid compression mechanism and the condensing mechanism, and is used for detecting the pipeline pressure between the liquid compression mechanism and the condensing mechanism.

[0018] Further, the cockpit refrigeration circuit is further provided with a low-pressure liquid filling port and a high-pressure liquid filling port, the low-pressure liquid filling port is arranged on the liquid delivery pipeline between the liquid compression mechanism and the evaporating mechanism, and the high-pressure liquid filling port is arranged on the liquid delivery pipeline between the condensing mechanism and the evaporating mechanism.

[0019] In another aspect, the application also provides a vehicle, which comprises the vehicle thermal management system as described above.

[0020] The application has the following beneficial effects:

[0021] The application sets the cockpit heating module, the cockpit refrigeration module and the battery pack thermal management module to refrigerate and heat the cockpit and exchange energy with the battery pack, so that the cockpit heating function, the cockpit refrigeration function and the battery pack thermal management function can be integrated on the vehicle, thereby improving the driving experience of the driver. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0023] Figure 1 A structural schematic diagram of a vehicle thermal management system provided by an embodiment of the present application is shown in the figure.

[0024] In the figure, the reference signs correspond to: 11-liquid delivery mechanism; 12-liquid heating mechanism; 13-liquid supplement mechanism; 14-heat dissipation mechanism; 21-liquid compression mechanism; 22-condensing mechanism; 23-first electronic expansion valve; 24-evaporation mechanism; 25-second electronic expansion valve; 26-first pressure and temperature detection mechanism; 27-second pressure and temperature detection mechanism; 28-pressure detection mechanism; 31-plate heat exchanger; 41-battery cooling water pump; 42-cooling liquid supplement mechanism; 43-first temperature detection mechanism; 44-second temperature detection mechanism; 51-low-pressure liquid filling port; 52-high-pressure liquid filling port; 61-battery pack. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0026] It should be noted that, in the present application, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “linking”, “fixing” and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection, or can be in communication with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the following, the embodiments will be described with reference to the drawings, and the drawings do not limit the disclosure recorded in the claims in any way.

[0028] Please refer to Figure 1 , in the following, the embodiments of the present application will be described in detail. Figure 1 A vehicle thermal management system provided by an embodiment of the present application will be described in detail.

[0029] The embodiment of the present application provides a vehicle thermal management system, as shown in the drawings. Figure 1 Specifically, the vehicle thermal management system comprises a cabin heating module, a cabin refrigeration module and a battery pack thermal management module, wherein the battery pack thermal management module and the cabin refrigeration module exchange heat through a plate heat exchanger 31; the cabin heating module comprises a liquid conveying mechanism 11, a liquid heating mechanism 12, a liquid supplementing mechanism 13 and a heat dissipation mechanism 14, a liquid driving end of the liquid conveying mechanism 11 is connected with a liquid input end of the liquid heating mechanism 12 through a liquid conveying pipeline, a liquid input end of the liquid conveying mechanism 11 is connected with a liquid output port of the heat dissipation mechanism 14 through the liquid conveying pipeline, a liquid output end of the liquid heating mechanism 12 is connected with a liquid input port of the heat dissipation mechanism 14 through the liquid conveying pipeline, the heat dissipation mechanism 14 is located in the cabin, and the liquid supplementing mechanism 13 is arranged on the liquid conveying pipeline between the liquid conveying mechanism 11 and the heat dissipation mechanism 14; the liquid conveying mechanism 11, the liquid heating mechanism 12 and the heat dissipation mechanism 14 constitute a cabin heating loop, and the liquid conveying mechanism 11 is used for driving liquid in the liquid conveying pipeline to flow through the liquid heating mechanism 12 and the heat dissipation mechanism 14 in turn and flow back to the liquid conveying mechanism 11 from the liquid output port of the heat dissipation mechanism 14.

[0030] In the embodiment of the present application, the liquid conveying mechanism 11 is a mechanical device used for conveying liquid or pressurizing liquid, for example, the liquid conveying mechanism 11 can be a water pump, the liquid heating mechanism 12 is a device used for heating liquid, for example, the liquid heating mechanism 12 can be a PCT (Positive Temperature Coefficient, PCT for short) heater, the liquid supplementing mechanism 13 is a container used for supplementing liquid to the liquid conveying pipeline, for example, the liquid supplementing mechanism 13 can be an expansion tank, and the heat dissipation mechanism 14 is a device used for outputting warm air, for example, the heat dissipation mechanism 14 can be a heating sheet, further, the liquid conveying pipeline between the liquid conveying mechanism 11 and the liquid heating mechanism 12, the liquid conveying pipeline between the liquid heating mechanism 12 and the liquid supplementing mechanism 13, the liquid conveying pipeline between the liquid supplementing mechanism 13 and the heat dissipation mechanism 14 and the liquid conveying pipeline between the heat dissipation mechanism 14 and the liquid conveying mechanism 11 all contain refrigerant, and then the cabin heating module comprising the liquid conveying mechanism 11, the liquid heating mechanism 12, the liquid supplementing mechanism 13 and the heat dissipation mechanism 14 is arranged, so as to utilize the liquid conveying mechanism 11, the liquid heating mechanism 12 and the heat dissipation mechanism 14 to constitute the cabin heating loop, thereby the cabin heating loop can be used for cyclically heating the vehicle cabin.

[0031] Meanwhile, the cockpit refrigeration module and the battery pack thermal management module are combined, wherein the cockpit refrigeration module is used for refrigerating the vehicle cockpit, and the battery pack thermal management module is used for adjusting the temperature of the battery pack 61. Thus, the cockpit refrigeration module, the cockpit heating module and the battery pack thermal management module can be used to refrigerate and heat the cockpit and exchange energy with the battery pack 61. Therefore, the cockpit heating function, the cockpit refrigeration function and the battery pack thermal management function can be integrated on the vehicle, thereby improving the driving experience of the driver.

[0032] In actual application, the flow direction of the refrigerant in the cockpit heating circuit can be indicated by a single solid arrow in Figure 1 particular, the liquid delivery mechanism 11 can drive the refrigerant in the liquid delivery pipeline to flow to the liquid heating mechanism 12, so as to heat the refrigerant in the liquid delivery pipeline by the liquid heating mechanism 12. The heated refrigerant flows to the heat dissipation mechanism 14, and the heat dissipation mechanism 14 can be used to dissipate heat from the heated refrigerant, so as to heat the cockpit. Further, the heat dissipated refrigerant from the heat dissipation mechanism 14 flows back to the liquid delivery mechanism 11, so as to realize cyclic heating. In addition, the liquid supplement mechanism 13 can add refrigerant to the liquid delivery pipeline when the refrigerant in the liquid delivery pipeline is reduced, so as to ensure that the refrigerant in the liquid delivery pipeline is sufficient.

[0033] In an optional embodiment, as shown in Figure 1 the cockpit refrigeration module includes a liquid compression mechanism 21, a condensation mechanism 22, a first electronic expansion valve 23 and an evaporation mechanism 24. The high-pressure output end of the liquid compression mechanism 21 is connected with the input end of the condensation mechanism 22. The output end of the condensation mechanism 22 is connected with the input end of the evaporation mechanism 24 through the first electronic expansion valve 23. The output end of the evaporation mechanism 24 is connected with the low-pressure input end of the liquid compression mechanism 21. The evaporation mechanism 24 is located in the cockpit. The liquid compression mechanism 21, the condensation mechanism 22, the evaporation mechanism 24 and the first electronic expansion valve 23 constitute a cockpit refrigeration circuit, which is used for refrigerating the cockpit.

[0034] In the embodiment of the present application, the liquid compression mechanism 21 can be a compressor for compressing refrigerant to form high-temperature and high-pressure refrigerant, the condensing mechanism 22 can be a condenser for exchanging heat between the high-temperature and high-pressure gaseous refrigerant and the external environment, and dissipating heat to the surrounding environment, thereby reducing the temperature and pressure of the refrigerant, the first electronic expansion valve 23 is used to control the on-off between the condensing mechanism 22 and the evaporating mechanism 24, and the evaporating mechanism 24 can be an evaporator for evaporating and absorbing heat at low pressure by liquid refrigerant, thereby achieving the purpose of refrigeration. Further, the liquid compression mechanism 21 and the condensing mechanism 22 are connected by a gas delivery pipeline, and the condensing mechanism 22 and the evaporating mechanism 24 and the evaporating mechanism 24 and the liquid compression mechanism 21 are connected by a liquid delivery pipeline. In this way, the liquid compression mechanism 21, the condensing mechanism 22 and the evaporating mechanism 24 can be connected by the gas delivery pipeline and the liquid delivery pipeline to form a cockpit refrigeration circuit, so that the cockpit refrigeration circuit can be used to refrigerate the cockpit.

[0035] In actual application, the flow direction of the refrigerant in the cockpit refrigeration circuit can be indicated by the single dashed arrow in Figure 1 , specifically, the refrigerant is compressed by the liquid compression mechanism 21 to form high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant is transmitted to the condensing mechanism 22 through the gas delivery pipeline. After being processed by the condensing mechanism 22, the medium-temperature and high-pressure liquid refrigerant is formed. The medium-temperature and high-pressure liquid refrigerant can be transmitted to the evaporating mechanism 24 when the first electronic expansion valve 23 is in the on state, so as to refrigerate the cockpit by the evaporating mechanism 24. In this way, the refrigerant is transmitted from the evaporating mechanism 24 to the liquid compression mechanism 21 in the form of gas, so as to realize the cycle refrigeration.

[0036] In a specific embodiment, as shown in Figure 1 , the cockpit refrigeration circuit further comprises a low-pressure liquid filling port 51 and a high-pressure liquid filling port 52. The low-pressure liquid filling port 51 is arranged on the liquid delivery pipeline between the liquid compression mechanism 21 and the evaporating mechanism 24, and the high-pressure liquid filling port 52 is arranged on the liquid delivery pipeline between the condensing mechanism 22 and the evaporating mechanism 24.

[0037] Specifically, the low-pressure liquid filling port 51 and the high-pressure liquid filling port 52 can be arranged to fill the cockpit refrigeration circuit with refrigerant, so as to ensure the sufficiency of the refrigerant.

[0038] In an optional embodiment, the cockpit cooling module further includes a second electronic expansion valve 25; wherein, the output end of the condensing mechanism 22 is connected to the first input port of the plate heat exchanger 31 through the second electronic expansion valve 25, the first output port of the plate heat exchanger 31 is connected to the low-pressure input end of the liquid compression mechanism 21, the liquid compression mechanism 21, the condensing mechanism 22, the second electronic expansion valve 25 and the plate heat exchanger 31 constitute a battery pack heat exchange circuit, and the battery pack heat exchange circuit is used to exchange heat with the battery pack thermal management module through the plate heat exchanger 31.

[0039] In this embodiment, a second electronic expansion valve 25 is provided to form a battery pack heat exchange circuit with the liquid compression mechanism 21, the condensation mechanism 22, and the plate heat exchanger 31. The battery pack heat exchange circuit can then exchange heat with the battery pack thermal management module through the plate heat exchanger 31.

[0040] In one specific embodiment, the flow direction of the refrigerant in the battery pack heat exchange circuit can participate in... Figure 1 Specifically, when the second electronic expansion valve 25 is in the open state, the medium-temperature, high-pressure liquid refrigerant formed after being processed by the condensing mechanism 22 can be transferred to the plate heat exchanger 31 while the second electronic expansion valve 25 is in the open state. The medium-temperature, high-pressure liquid refrigerant transferred to the plate heat exchanger 31 can then exchange heat with the liquid flowing through the plate heat exchanger 31 to achieve heat exchange with the coolant in the battery pack thermal management module, thereby cooling the coolant in the battery pack thermal management module. Furthermore, the refrigerant after heat exchange is transferred to the liquid compression mechanism 21 through the liquid delivery pipeline to achieve the purpose of circulating cooling.

[0041] In one specific embodiment, multiple fans are also included. The multiple fans are arranged on one side close to the condensing mechanism 22, and the air outlets of the multiple fans are arranged facing the condensing mechanism 22, so that the fans can be used to cool and dehumidify the condensing mechanism 22.

[0042] In an optional embodiment, the battery pack thermal management module includes a battery cooling water pump 41 and a coolant replenishment mechanism 42. The drive output of the battery cooling water pump 41 is connected to the second input port of the plate heat exchanger 31 via a liquid delivery pipe. The second output port of the plate heat exchanger 31 is connected to the liquid input port of the battery pack 61 via a liquid delivery pipe. The liquid output port of the battery pack 61 is connected to the liquid input port of the battery cooling water pump 41 via a liquid delivery pipe. The coolant replenishment mechanism 42 is located on the liquid delivery pipe between the plate heat exchanger 31 and the battery pack 61. The battery cooling water pump 41 and the plate heat exchanger 31 constitute a battery pack cooling circuit, which is used to cool and reduce the temperature of the battery pack 61.

[0043] In the embodiment of the present application, the battery cooling water pump 41 provides driving force for the cooling liquid in the liquid delivery pipeline, and the cooling liquid supplement mechanism 42 is a container for supplementing the cooling liquid. For example, the cooling liquid supplement mechanism 42 can be an expansion tank. Further, by arranging the battery pack thermal management module including the battery cooling water pump 41 and the cooling liquid supplement mechanism 42, the battery cooling water pump 41, the plate heat exchanger 31, and the battery pack 61 form a battery cooling loop, so that the battery cooling loop can be used to cool the battery pack 61.

[0044] In actual application, the flow direction of the cooling liquid in the battery cooling loop can be the direction indicated by the double solid arrow in Figure 1 , specifically, the battery cooling water pump 41 can drive the cooling liquid in the liquid delivery pipeline to flow to the plate heat exchanger 31, so that the liquid refrigerant in the plate heat exchanger 31 can cool the cooling liquid in the liquid delivery pipeline in the battery cooling loop, and the cooled cooling liquid flows to the battery pack 61, so that the battery pack 61 can be cooled. Further, the cooling liquid supplement mechanism 42 can add cooling liquid to the liquid delivery pipeline when the cooling liquid in the liquid delivery pipeline is reduced, so as to ensure that the cooling liquid in the liquid delivery pipeline is sufficient.

[0045] In an optional embodiment, the cockpit refrigeration loop is further provided with a first pressure and temperature detection mechanism 26, which is arranged on the liquid delivery pipeline between the evaporation mechanism 24 and the liquid compression mechanism 21. The first pressure and temperature detection mechanism 26 is used to detect the pipeline pressure between the evaporation mechanism 24 and the liquid compression mechanism 21 and the temperature of the liquid in the liquid delivery pipeline.

[0046] Specifically, the first pressure and temperature detection mechanism 26 can be a pressure and temperature sensor. Further, by arranging the first pressure and temperature detection mechanism 26, the first pressure and temperature detection mechanism 26 can be used to detect the pipeline pressure between the evaporation mechanism 24 and the liquid compression mechanism 21 and the temperature of the refrigerant in the liquid delivery pipeline, so as to improve the safety and efficiency of the liquid delivery pipeline and ensure the normal operation of the liquid delivery pipeline.

[0047] In an optional embodiment, the battery pack heat exchange loop is further provided with a second pressure and temperature detection mechanism 27, which is arranged on the liquid delivery pipeline between the plate heat exchanger 31 and the liquid compression mechanism 21. The second pressure and temperature detection mechanism 27 is used to detect the pipeline pressure between the plate heat exchanger 31 and the liquid compression mechanism 21 and the temperature of the liquid in the liquid delivery pipeline.

[0048] Specifically, the second pressure and temperature detection mechanism 27 can be a pressure and temperature sensor, and the second pressure and temperature detection mechanism 27 is arranged to detect the pressure of the pipeline between the plate heat exchanger 31 and the liquid compression mechanism 21 and the temperature of the liquid in the liquid delivery pipeline, so as to improve the safety and efficiency of the pipeline and ensure the normal operation of the pipeline.

[0049] In an optional embodiment, the battery pack cooling circuit is further provided with a first temperature detection mechanism 43 and a second temperature detection mechanism 44, the first temperature detection mechanism 43 is arranged on the liquid delivery pipeline between the battery cooling water pump 41 and the battery pack 61, and the second temperature detection mechanism 44 is arranged on the liquid delivery pipeline between the plate heat exchanger 31 and the battery pack 61, the first temperature detection mechanism 43 is used to detect the temperature of the liquid in the liquid delivery pipeline between the battery cooling water pump 41 and the battery pack 61, and the second temperature detection mechanism 44 is used to detect the temperature of the liquid in the liquid delivery pipeline between the plate heat exchanger 31 and the battery pack 61.

[0050] Specifically, the first temperature detection mechanism 43 and the second temperature detection mechanism 44 are both temperature sensors, the first temperature detection mechanism 43 is used to detect the temperature of the liquid in the liquid delivery pipeline between the battery cooling water pump 41 and the battery pack 61, that is, the first temperature detection mechanism 43 can detect the temperature of the cooling liquid flowing into the battery pack 61, and the second temperature detection mechanism 44 is used to detect the temperature of the liquid in the liquid delivery pipeline between the plate heat exchanger 31 and the battery pack 61, that is, the second temperature detection mechanism 44 can detect the temperature of the cooling liquid flowing out of the battery pack 61, so as to monitor the temperature of the cooling liquid in the battery pack cooling circuit and ensure the reliability of the cooling of the battery pack 61.

[0051] In an optional embodiment, the cockpit refrigeration circuit is further provided with a pressure detection mechanism 28, the pressure detection mechanism 28 is arranged on the gas delivery pipeline between the liquid compression mechanism 21 and the condensing mechanism 22, and the pressure detection mechanism 28 is used to detect the pressure of the pipeline between the liquid compression mechanism 21 and the condensing mechanism 22.

[0052] Specifically, the pressure detection mechanism 28 can be a pressure sensor, and the pressure detection mechanism 28 is arranged to detect the pressure of the pipeline between the liquid compression mechanism 21 and the condensing mechanism 22 in the cockpit refrigeration circuit, so as to ensure the reliability of the cockpit refrigeration.

[0053] The above-mentioned embodiments of the present application have the following beneficial effects:

[0054] The application can realize the functions of the cockpit heating, the cockpit refrigeration and the battery pack thermal management on the vehicle, thereby improving the driving experience of the driver.

[0055] The application also provides a vehicle comprising the vehicle thermal management system, and the vehicle has all the beneficial effects of the vehicle thermal management system.

[0056] The structure shown in the embodiment only relates to part of the structure of the application scheme, and does not constitute a limitation on the equipment to which the application scheme is applied. The specific equipment can include more or fewer components than shown, or combine certain components, or have a different arrangement of components. It should be understood that the methods, devices, etc. disclosed in the embodiment can be implemented in other ways.

[0057] The above is only a specific implementation of the application, but the protection scope of the application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the application, which should be covered within the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A thermal management system for a vehicle, characterized by, The battery pack thermal management module exchanges heat with the cockpit refrigeration module through a plate heat exchanger (31); The cockpit heating module includes a liquid conveying mechanism (11), a liquid heating mechanism (12), a liquid supplementing mechanism (13), and a heat dissipation mechanism (14). The liquid driving end of the liquid conveying mechanism (11) is connected with the liquid input end of the liquid heating mechanism (12) through a liquid conveying pipeline. The liquid input end of the liquid conveying mechanism (11) is connected with the liquid output port of the heat dissipation mechanism (14) through a liquid conveying pipeline. The liquid output end of the liquid heating mechanism (12) is connected with the liquid input port of the heat dissipation mechanism (14) through a liquid conveying pipeline. The heat dissipation mechanism (14) is located in the cockpit. The liquid supplementing mechanism (13) is arranged on the liquid conveying pipeline between the liquid conveying mechanism (11) and the heat dissipation mechanism (14). The liquid conveying mechanism (11), the liquid heating mechanism (12), and the heat dissipation mechanism (14) constitute a cockpit heating circuit. The liquid conveying mechanism (11) is used to drive the liquid in the liquid conveying pipeline to flow through the liquid heating mechanism (12) and the heat dissipation mechanism (14) in sequence, and then flow back to the liquid conveying mechanism (11) from the liquid output port of the heat dissipation mechanism (14).

2. The thermal management system for vehicles according to claim 1, characterized by The cockpit refrigeration module includes a liquid compression mechanism (21), a condensing mechanism (22), a first electronic expansion valve (23), and an evaporating mechanism (24). The high-pressure output end of the liquid compression mechanism (21) is connected with the input end of the condensing mechanism (22). The output end of the condensing mechanism (22) is connected with the input end of the evaporating mechanism (24) through the first electronic expansion valve (23). The output end of the evaporating mechanism (24) is connected with the low-pressure input end of the liquid compression mechanism (21). The evaporating mechanism (24) is located in the cockpit. The liquid compression mechanism (21), the condensing mechanism (22), the evaporating mechanism (24), and the first electronic expansion valve (23) constitute a cockpit refrigeration circuit, which is used to refrigerate the cockpit.

3. The thermal management system for vehicles according to claim 2, characterized by The cockpit refrigeration module further includes a second electronic expansion valve (25). The output end of the condensing mechanism (22) is connected with the first input port of the plate heat exchanger (31) through the second electronic expansion valve (25). The first output port of the plate heat exchanger (31) is connected with the low-pressure input end of the liquid compression mechanism (21). The liquid compression mechanism (21), the condensing mechanism (22), the second electronic expansion valve (25), and the plate heat exchanger (31) constitute a battery pack heat exchange circuit, which is used to exchange heat with the battery pack thermal management module through the plate heat exchanger (31).

4. The thermal management system for vehicles according to claim 3, characterized by The battery pack thermal management module includes a battery cooling water pump (41) and a cooling liquid supplementing mechanism (42). The driving output end of the battery cooling water pump (41) is connected with the second input port of the plate exchange exchanger (31) through a liquid conveying pipeline, the second output port of the plate exchange exchanger (31) is connected with the liquid input port of the battery pack (61) through a liquid conveying pipeline, the liquid output port of the battery pack (61) is connected with the liquid input end of the battery cooling water pump (41) through a liquid conveying pipeline, and the cooling liquid supplement mechanism (42) is arranged on the liquid conveying pipeline between the plate exchange exchanger (31) and the battery pack (61). The battery cooling water pump (41) and the plate exchange exchanger (31) constitute a battery pack cooling loop, and the battery pack cooling loop is used for cooling the battery pack (61).

5. The thermal management system for vehicles according to claim 2, characterized by The cockpit refrigeration loop is further provided with a first pressure and temperature detection mechanism (26), the first pressure and temperature detection mechanism (26) is arranged on the liquid conveying pipeline between the evaporation mechanism (24) and the liquid compression mechanism (21), and the first pressure and temperature detection mechanism (26) is used for detecting the pipeline pressure and the temperature of the liquid in the liquid conveying pipeline between the evaporation mechanism (24) and the liquid compression mechanism (21).

6. The thermal management system for vehicles according to claim 3, characterized by The battery pack heat exchange loop is further provided with a second pressure and temperature detection mechanism (27), the second pressure and temperature detection mechanism (27) is arranged on the liquid conveying pipeline between the plate exchange exchanger (31) and the liquid compression mechanism (21), and the second pressure and temperature detection mechanism (27) is used for detecting the pipeline pressure and the temperature of the liquid in the liquid conveying pipeline between the plate exchange exchanger (31) and the liquid compression mechanism (21).

7. The thermal management system for vehicles according to claim 4, characterized by The battery pack cooling loop is further provided with a first temperature detection mechanism (43) and a second temperature detection mechanism (44), the first temperature detection mechanism (43) is arranged on the liquid conveying pipeline between the battery cooling water pump (41) and the battery pack (61), the second temperature detection mechanism (44) is arranged on the liquid conveying pipeline between the plate exchange exchanger (31) and the battery pack (61), the first temperature detection mechanism (43) is used for detecting the temperature of the liquid in the liquid conveying pipeline between the battery cooling water pump (41) and the battery pack (61), and the second temperature detection mechanism (44) is used for detecting the temperature of the liquid in the liquid conveying pipeline between the plate exchange exchanger (31) and the battery pack (61).

8. The thermal management system for vehicles according to claim 2, characterized by, The cockpit refrigeration loop is further provided with a pressure detection mechanism (28), the pressure detection mechanism (28) is arranged on the gas conveying pipeline between the liquid compression mechanism (21) and the condensation mechanism (22), and the pressure detection mechanism (28) is used for detecting the pipeline pressure between the liquid compression mechanism (21) and the condensation mechanism (22).

9. The thermal management system for vehicles according to claim 2, characterized by, The cockpit refrigeration circuit is further provided with a low-pressure liquid filling port (51) and a high-pressure liquid filling port (52), the low-pressure liquid filling port (51) is arranged on the liquid conveying pipeline between the liquid compression mechanism (21) and the evaporation mechanism (24), and the high-pressure liquid filling port (52) is arranged on the liquid conveying pipeline between the condensation mechanism (22) and the evaporation mechanism (24).

10. A vehicle characterized by comprising: A thermal management system for a vehicle comprising a heat management system according to any one of claims 1 to 9.

Images