A thermal management system and vehicle

Abstract

The application provides a heat management system and a car, and relates to the field of car heat management. The heat management system comprises: an air conditioner module provided with a refrigeration circuit and a heating circuit in parallel with each other; a battery cooling module connected with the air conditioner module through a refrigerating machine; a motor electric control cooling module connected with the air conditioner module through a heat exchanger; a water cooling module comprising a water cooling unit and a valve, and the water cooling unit can be connected with the battery cooling module or the motor electric control cooling module or be in an open circuit state through opening and closing of the valve; and a warm air module.

Description

TECHNICAL FIELD

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

[0002] With the popularity and continuous progress of electric vehicles, the relevant designers usually increase the capacity of the battery to alleviate the problem of electric vehicle endurance, and the large-capacity battery can realize fast charging. However, due to the heating characteristics of the battery cell, the heat generated by the large-capacity battery is very large, and it is expected that the charging will be completed at the allowable temperature of the cell, and the heat will be dissipated in a short time, which is one of the problems that need to be solved for the large-capacity battery to realize fast charging. In addition, when the electric vehicle uses a driving motor as the driving power, when the motor needs to be in a high operating power or peak power working condition (for example, continuous climbing), the motor generates a large amount of heat in a short time, and if the heat of the motor cannot be dissipated, a high temperature alarm will be issued, affecting the operation of the vehicle.

[0003] Therefore, there is an urgent need for a thermal management system that can meet the fast charging needs of large-capacity batteries and ensure the operation of the motor at peak power. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a thermal management system and an automobile to solve the problem that the existing thermal management system of the electric vehicle cannot meet the fast charging needs of the large-capacity battery and cannot ensure the operation of the motor at peak power.

[0005] To achieve the above purpose, the present application provides a thermal management system, which comprises:

[0006] An air conditioning module is provided with a refrigeration circuit and a heating circuit connected in parallel with each other;

[0007] A battery cooling module is connected to the air conditioning module through a refrigeration machine;

[0008] A motor electric control cooling module is connected to the air conditioning module through a heat exchanger;

[0009] A water cooling module comprises a water cooling unit and a valve, and the water cooling unit is connected to the battery cooling module or the motor electric control cooling module or in an open circuit state by opening and closing the valve; and

[0010] A warm air module.

[0011] Preferably, the refrigeration circuit comprises a first refrigeration circuit, and the first refrigeration circuit comprises a liquid storage tank, a compressor, a first electromagnetic valve, a first condenser, a first check valve, a first electronic expansion valve and the refrigeration machine connected in sequence.

[0012] Preferably, the refrigeration circuit further comprises a second refrigeration circuit connected in parallel with the first refrigeration circuit; the second refrigeration circuit comprises a second electromagnetic valve, a thermal expansion valve, an evaporator and a second check valve connected in sequence; an inlet end of the second electromagnetic valve is connected between the first condenser and the first check valve; an outlet end of the second check valve is connected between the liquid storage tank and the refrigeration machine.

[0013] Preferably, the heating circuit comprises a third electromagnetic valve and a second condenser connected in sequence; an inlet end of the third electromagnetic valve is connected between the compressor and the first electromagnetic valve; the second condenser is connected between the first check valve and the first electronic expansion valve.

[0014] The heating circuit further comprises a second electronic expansion valve and a heat exchanger connected in sequence; an inlet end of the second electronic expansion valve is connected between the second condenser and the first electronic expansion valve; an outlet end of the heat exchanger is connected between the liquid storage tank and the refrigeration machine.

[0015] Preferably, the battery cooling module comprises a first three-way valve, a first expansion water tank, a first water pump and a battery; the refrigeration machine, the first three-way valve, the first expansion water tank, the first water pump and the battery are connected in sequence to form a loop of the battery cooling module.

[0016] Preferably, the motor electronic control cooling module comprises a motor electronic control assembly, a second three-way valve, a third three-way valve, an ATS assembly, a third check valve, a second expansion water tank and a second water pump connected in sequence to form a loop of the motor electronic control cooling module; the heat exchanger is connected in parallel at both ends of the ATS assembly.

[0017] Preferably, the water cooling unit is connected in parallel at both ends of the battery through a first on-off valve, and the first on-off valve is located between an outlet end of the battery and an inlet end of the water cooling unit.

[0018] Preferably, the water cooling unit is connected with the motor electronic control assembly through a second three-way valve.

[0019] Preferably, the warm air module comprises a warm air core, a water heater, a second on-off valve, a third expansion water tank and a third water pump connected in sequence to form a loop of the warm air module.

[0020] According to a second aspect of the present application, an automobile is provided, wherein the automobile is provided with the thermal management system as described above.

[0021] The heat management system and the automobile according to the present application can cool or heat the passenger cabin through the air conditioning module; the battery cooling module is connected with the air conditioning module through the refrigerating machine, so that the air conditioning module can cool the battery in addition to cooling the passenger cabin; the motor electric control cooling module is connected with the air conditioning module through the heat exchanger, which can cool the motor electric control assembly, that is, the air conditioning module can absorb the heat of the motor electric control assembly; in addition, the heat management system is also provided with a water cooling module, which can be connected with the battery cooling module or the motor electric control cooling module or be in an open circuit state through the opening and closing of the valve, that is, the water cooling unit can flexibly cool the battery or the motor electric control assembly according to the actual working condition of the automobile, or be in an open circuit state when the above modules can meet the cooling demand. In this way, the heat management system can meet the fast charging demand of the large-capacity battery and guarantee the heat management of the motor in peak power operation.

[0022] In addition, the heat management system is also provided with a warm air module, which can achieve the technical effects of defrosting and heating the passenger cabin.

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Figure 1 is a schematic diagram of the heat management system according to the present application;

[0026] Figure 2 is a working schematic diagram of the heat management system of the automobile according to the present application when the automobile is running in summer;

[0027] Figure 3 is a working schematic diagram of the heat management system of the automobile according to the present application when the automobile is running in winter;

[0028] Figure 4 is a working schematic diagram of the heat management system of the automobile according to the present application when the automobile is parked and heated in winter;

[0029] Figure 5 is a working schematic diagram of the heat management system of the automobile according to the present application when the automobile needs to be defrosted before running in winter;

[0030] Figure 6is a working schematic of the thermal management system when the motor according to the present application is in peak power operation;

[0031] Figure 7 is a working schematic of the thermal management system when the car is parked and the battery is fast-charged according to the present application.

[0032] Legend: 10 - liquid storage tank; 11 - compressor; 12 - first solenoid valve; 13 - first condenser; 14 - first check valve; 15 - first electronic expansion valve; 16 - chiller; 20 - second solenoid valve; 21 - thermal expansion valve; 22 - evaporator; 23 - second check valve; 30 - third solenoid valve; 31 - second condenser; 32 - second electronic expansion valve; 33 - heat exchanger; 40 - first three-way valve; 41 - first expansion tank; 42 - first water pump; 43 - battery; 50 - motor electronic control assembly; 51 - second three-way valve; 52 - third three-way valve; 53 - ATS assembly; 54 - third check valve; 55 - second expansion tank; 56 - second water pump; 60 - water chiller unit; 61 - first on-off valve; 70 - heater core; 71 - water heater; 72 - second on-off valve; 73 - third expansion tank; 74 - third water pump. DETAILED DESCRIPTION

[0033] The following detailed description is presented to aid the reader in gaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and equivalents can be used, and the

[0034] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples have been provided so that this disclosure will be thorough and complete, and will fully convey the scope of the methods, apparatuses, and / or systems to those skilled in the art. Further, the description should not be interpreted as a general abstraction from the disclosure, but rather as a specific example of the implementation of the methods, apparatuses, and / or systems described herein.

[0035] Throughout the specification, when an element (such as a layer, region or substrate) is referred to as being "on" another element, "connected to" another element, "coupled to" another element, "adjacent to" another element, "on top of" another element, or terms similar thereto, it is understood that an intervening element may be present or absent. For example, if a layer is described as being "on" a substrate, it is understood that an intervening layer may be present or absent. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to," "directly adjacent to," "directly on top of," or terms similar thereto, it is understood that no intervening element is present.

[0036] As used herein, the term "and / or" includes any one of the listed items and any combination of one or more of the listed items.

[0037] Although terms such as "first" and "second" and "third" can be used herein to describe various components, assemblies, regions, layers or sections, these components, assemblies, regions, layers or sections are not limited by these terms. Rather, these terms are only used to distinguish one component, assembly, region, layer or section from another component, assembly, region, layer or section. Thus, a component, assembly, region, layer or section referred to as a first component, assembly, region, layer or section in one example described herein can also be referred to as a second component, assembly, region, layer or section in another example without departing from the teachings of the examples.

[0038] For ease of description, spatial terms such as "on," "upper," "below," and "lower" can be used with respect to the orientation of one element relative to another element as illustrated in the figures. Such spatial terms can be intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, a component described as relative to another component on the "upper" side of another component would then be oriented on the "lower" side of that component. Accordingly, the term "on" encompasses both an "on" and "under" orientation depending on the spatial orientation of the device. The device can be oriented in other ways (e.g., rotated 90 degrees or at other orientations) and an appropriate modification to the spatial terms used herein will be made accordingly.

[0039] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including" and "has," "having" as used herein, are intended to be open-ended terms that encompass both the recited elements and other elements. The terms "comprises," "comprising," "includes," "including," and "has," "having," as used herein, are intended to be open-ended terms that encompass both the recited elements and other elements.

[0040] Variations in the shapes illustrated in the drawings can occur as a result of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the specific shapes illustrated in the drawings, but include variations in shapes that occur as a result of manufacturing processes and / or tolerances.

[0041] Features of the examples described herein can be combined with one another as would be apparent to one of ordinary skill in the art after understanding the disclosure provided herein. Furthermore, although examples described herein have a variety of configurations, other configurations are possible as would be apparent to one of ordinary skill in the art after understanding the disclosure provided herein.

[0042] According to a first aspect of the present application, a thermal management system is provided for application in a pure electric vehicle, as shown in Figure 1 The thermal management system in the embodiment includes an air conditioning module, a battery 43 cooling module, a motor and electric control cooling module, a water cooling module, and a heating module. The above modules can meet the heat dissipation requirements of the passenger cabin, the battery 43, and the motor and electric control assembly 50 under various working conditions, and can also meet the heat preservation requirements of the passenger cabin. In the following, the specific structure and operating state of each module of the thermal management system according to the present application will be described in detail. In addition, as shown in Figures 2 to 7 Since the system is relatively complex and has multiple working modes, when the system is in different working modes, the corresponding working circuits are expressed with dark lines, and the components are expressed with light lines, so that the description is clearer and more accurate.

[0043] In the embodiment, as shown in Figure 1As shown, the air conditioning module is provided with a refrigeration circuit and a heating circuit in parallel with each other. The refrigeration circuit includes a first refrigeration circuit, which comprises a liquid storage tank 10, a compressor 11, a first electromagnetic valve 12, a first condenser 13, a first check valve 14, a first electronic expansion valve 15, and a chiller 16 connected in sequence end to end. The refrigeration circuit further includes a second refrigeration circuit in parallel with the first refrigeration circuit, which comprises a second electromagnetic valve 20, a thermal expansion valve 21, an evaporator 22, and a second check valve 23 connected in sequence. Further, the inlet end of the second electromagnetic valve 20 is connected between the first condenser 13 and the first check valve 14, and the outlet end of the second check valve 23 is connected between the liquid storage tank 10 and the chiller 16. That is, the liquid storage tank 10, the compressor 11, the first electromagnetic valve 12, the first condenser 13, the second electromagnetic valve 20, the thermal expansion valve 21, the evaporator 22, and the second check valve 23 are connected in sequence end to end to form the second refrigeration circuit.

[0044] Similarly to the above refrigeration circuit, as shown in Figure 1 the heating circuit includes a third electromagnetic valve 30 and a second condenser 31 connected in sequence, the inlet end of the third electromagnetic valve 30 is connected between the compressor 11 and the first electromagnetic valve 12, and the second condenser 31 is connected between the first check valve 14 and the first electronic expansion valve 15. That is, the liquid storage tank 10, the compressor 11, the third electromagnetic valve 30, the second condenser 31, the first electronic expansion valve 15, and the chiller 16 are connected in sequence end to end to form the first heating circuit. In addition, the heating circuit further includes a second electronic expansion valve 32 and a heat exchanger 33 connected in sequence, the inlet end of the second electronic expansion valve 32 is connected between the second condenser 31 and the first electronic expansion valve 15, and the outlet end of the heat exchanger 33 is connected between the liquid storage tank 10 and the chiller 16. That is, the liquid storage tank 10, the compressor 11, the third electromagnetic valve 30, the second condenser 31, the second electronic expansion valve 32, and the heat exchanger 33 are connected in sequence end to end to form the second heating circuit.

[0045] It should be noted that the first condenser 13 in the present embodiment is externally provided with a condensing fan, thereby effectively improving the condensing effect. The evaporator 22 and the second condenser 31 are externally provided with blowers, thereby being able to respectively improve the refrigeration and heating effects on the passenger compartment.

[0046] In the present embodiment, as shown in Figure 1 the battery 43 cooling module includes a first three-way valve 40, a first expansion tank 41, a first water pump 42, and a battery 43; the chiller 16, the first three-way valve 40, the first expansion tank 41, the first water pump 42, and the battery 43 are connected in sequence end to end to form a circuit of the battery 43 cooling module. Specifically, the outlet end of the chiller 16 is in communication with the A port of the first three-way valve 40, and the inlet end of the first water pump 42 is in communication with the B port of the first three-way valve 40.

[0047] In the embodiment, as shown in Figure 1 , the motor electric control cooling module comprises, sequentially and end-to-end, a motor electric control assembly 50, a second three-way valve 51, a third three-way valve 52, an ATS assembly 53, a third check valve 54, a second expansion water tank 55, and a second water pump 56, to form a loop of the motor electric control cooling module; the heat exchanger 33 is connected in parallel at both ends of the ATS assembly 53. That is, the inlet end of the heat exchanger 33 is communicated with the S port of the third three-way valve 52, the inlet end of the ATS assembly 53 is communicated with the Y port of the third three-way valve 52, the M port of the second three-way valve 51 is communicated with the R port of the third three-way valve 52, and the outlet end of the motor electric control assembly 50 is communicated with the P port of the second three-way valve 51.

[0048] In this way, the battery 43 cooling module can be connected with the air conditioning module through the refrigerating machine 16, and the motor electric control module can be connected with the air conditioning module through the heat exchanger 33.

[0049] In the embodiment, as shown in Figure 1 , the water cooling module comprises a water cooling unit 60 and valves, and the water cooling unit 60 can be connected with the battery 43 cooling module, connected with the motor electric control cooling module, or in an open circuit state by controlling the opening and closing of the valves. In this way, the water cooling unit 60 can flexibly dissipate heat for the battery 43 or the motor electric control assembly 50 according to the actual working condition of the automobile, or be in an open circuit state when the above modules can meet the heat dissipation demand. Specifically, the water cooling unit 60 is connected in parallel at both ends of the battery 43 through a first on-off valve 61, and the first on-off valve 61 is located between the outlet end of the battery 43 and the inlet end of the water cooling unit 60. In addition, the water cooling unit 60 is connected with the motor electric control assembly 50 through the second three-way valve 51, that is, the N port of the second three-way valve 51 is communicated with the inlet end of the water cooling unit 60, and the outlet end of the water cooling unit 60 is communicated with the inlet end of the second water pump 56.

[0050] As shown in Figure 1 , the heating module in the embodiment comprises, sequentially and end-to-end, a heating core 70, a water heater 71, a second on-off valve 72, a third expansion water tank 73, and a third water pump 74, to form a loop of the heating module.

[0051] In this way, by controlling the on-off of each valve, the system can be controlled to be in different states to adapt to different working conditions of the automobile. The states of the system in different working conditions of the automobile will be described below.

[0052] As shown in Figure 2 , when the automobile is running normally in summer, the motor electric control is cooled by the ATS cooling module, and the air conditioning system cools the passenger compartment and the battery 43.

[0053] Specifically, the first electromagnetic valve 12 and the second electromagnetic valve 20 are opened, the third electromagnetic valve 30 and the second electronic expansion valve 32 are closed, the first refrigeration circuit and the second refrigeration circuit work, and the first electronic expansion valve 15 and the thermal expansion valve 21 can realize the distribution of cold energy. The refrigerant is cooled to a medium-temperature high-pressure state by the first condenser 13 to the outside air; then, part of the medium-temperature high-pressure state refrigerant is changed to a low-temperature low-pressure state by the thermal expansion valve 21, and then absorbs heat from the passenger cabin through the evaporator 22; the other part of the medium-temperature high-pressure state refrigerant is changed to a low-temperature low-pressure state by the first electronic expansion valve 15, and then absorbs the heat of the cooling liquid in the battery 43 cooling module circuit in the refrigeration machine 16. The above two parts of the refrigerant are compressed by the compressor 11 to become high-temperature high-pressure refrigerant and reflow into the first condenser 13.

[0054] In addition, the A port and the B port of the first three-way valve 40 are communicated, the first on-off valve 61 and the second on-off valve 72 are in the closed state, the cooling liquid flowing out of the battery 43 enters the refrigeration machine 16 for cooling, and then flows through the first three-way valve 40 and the first water pump 42 and enters the battery 43 to realize the cooling of the battery 43. In this circuit, the rotating speed of the first water pump 42 can be adjusted, so as to adjust the flow of the cooling liquid in the circuit, so as to ensure that the battery 43 is in the normal working temperature range.

[0055] In addition, the P port and the M port of the second three-way valve 51 are communicated, the R port and the T port of the third three-way valve 52 are communicated, the cooling liquid flowing out of the motor electronic control assembly 50 flows through the second three-way valve 51 and the third three-way valve 52, and then enters the ATS assembly 53 for heat dissipation, and the cooling liquid after being cooled enters the second water pump 56 and then enters the motor electronic control assembly 50. In this circuit, the rotating speed of the second water pump 56 and the electronic fan in the ATS assembly 53 can be adjusted to ensure that the motor electronic control assembly 50 is in the normal working temperature range.

[0056] As shown in FIG. 6, when the automobile is in winter and the air conditioning system is in the heating mode, the first electromagnetic valve 12 and the second electromagnetic valve 20 are opened, the third electromagnetic valve 30 is closed, the first electronic expansion valve 15 is closed, and the second electronic expansion valve 32 is opened. The low-temperature low-pressure refrigerant in the heat exchanger 33 absorbs heat from the cooling liquid of the motor electronic control cooling module, and then enters the compressor 11 to become high-temperature high-pressure refrigerant, and then flows into the second condenser 31 to dissipate heat to the passenger cabin. Then, the refrigerant becomes a medium-temperature high-pressure state, and then changes to a low-temperature low-pressure state through the second electronic expansion valve 32. Figure 3

[0057] Specifically, the first electromagnetic valve 12 and the second electromagnetic valve 20 are in the closed state, the third electromagnetic valve 30 is in the open state, the first electronic expansion valve 15 is closed and the second electronic expansion valve 32 is opened, the low-temperature low-pressure refrigerant in the heat exchanger 33 absorbs heat from the cooling liquid of the motor electronic control cooling module, and then enters the compressor 11 to become high-temperature high-pressure refrigerant, and then flows into the second condenser 31 to dissipate heat to the passenger cabin. Then, the refrigerant becomes a medium-temperature high-pressure state, and then changes to a low-temperature low-pressure state through the second electronic expansion valve 32.

[0058] ​In addition, the A port and the B port of the first three-way valve 40 are communicated, the first on-off valve 61 and the second on-off valve 72 are both in the closed state, and the cooling liquid of the battery 43 is self-circulated to cool the battery 43. In addition, the P port and the M port of the second three-way valve 51 are communicated, the three structures of the third three-way valve 52 are all communicated, and the cooling liquid of the motor electronic control assembly 50 is divided into two parts after flowing through the third three-way valve 52, one part enters the heat exchanger 33 to provide heat for the circulation of the above-mentioned refrigerant, and the other part passes through the ATS assembly 53 to achieve the heat dissipation of the motor electronic control assembly 50.

[0059] As shown in FIG. 6, when the automobile is parked in winter, the passenger compartment can be heated by the heating module. Specifically, the A port and the B port of the first three-way valve 40 are communicated, the second on-off valve 72 is in the open state, the water heater 71 operates and heats the cooling liquid, and the heated cooling liquid enters the heating core 70 to emit heat to the passenger compartment after flowing through the second on-off valve 72 and the third water pump 74. Figure 4 As shown in FIG. 7, when the automobile needs to be defrosted before driving in winter, the air conditioning module realizes defrosting by absorbing the heat generated by the water heater 71. Specifically, the first electromagnetic valve 12 and the second electromagnetic valve 20 are in the closed state, the third electromagnetic valve 30 is in the open state, the second electronic expansion valve 32 is closed and the first electronic expansion valve 15 is open. In the refrigeration machine 16, the low-temperature and low-pressure refrigerant takes heat from the cooling liquid on the other side of the refrigeration machine 16, and then enters the compressor 11 to become a high-temperature and high-pressure state, and emits heat to the passenger compartment through the second condenser 31, and then becomes a medium-temperature and high-pressure state, and then becomes a low-temperature and low-pressure state after passing through the first electronic expansion valve 15, which can realize the technical effect of defrosting the passenger compartment glass. In addition, the A port and the C port of the first three-way valve 40 are communicated and the first on-off valve 61 is closed, and the cooling liquid is heated by the water heater 71 and then enters the refrigeration machine 16, and then enters the third water pump 74 and the heating core 70 through the first three-way valve 40.

[0060] Figure 5 As shown in FIG. 8, when the motor is in peak power operation, the motor electronic control assembly 50 is cooled by the water cooling unit 60, and the air conditioning module cools the passenger compartment and the battery 43. Specifically, the air conditioning module for cooling the passenger compartment and the battery 43 is the same as that shown in FIG. 6, and thus will not be described again. In addition, the first on-off valve 61 is closed and the P port and the N port of the second three-way valve 51 are communicated, and the cooling liquid in the motor electronic control cooling module circuit enters the water cooling unit 60 to be cooled. The water cooling unit 60 can quickly take away the heat of the motor by using lower water temperature, so that the normal operation of the motor at peak power can be effectively ensured (without high-temperature alarm).

[0061] As shown in FIG. 9, when the motor is in peak power operation, the motor electronic control assembly 50 is cooled by the water cooling unit 60, and the air conditioning module cools the passenger compartment and the battery 43. Specifically, the air conditioning module for cooling the passenger compartment and the battery 43 is the same as that shown in FIG. 6, and thus will not be described again. In addition, the first on-off valve 61 is closed and the P port and the N port of the second three-way valve 51 are communicated, and the cooling liquid in the motor electronic control cooling module circuit enters the water cooling unit 60 to be cooled. The water cooling unit 60 can quickly take away the heat of the motor by using lower water temperature, so that the normal operation of the motor at peak power can be effectively ensured (without high-temperature alarm). Figure 6 Figure 2 As shown in FIG. 10, when the motor is in peak power operation, the motor electronic control assembly 50 is cooled by the water cooling unit 60, and the air conditioning module cools the passenger compartment and the battery 43. Specifically, the air conditioning module for cooling the passenger compartment and the battery 43 is the same as that shown in FIG. 6, and thus will not be described again. In addition, the first on-off valve 61 is closed and the P port and the N port of the second three-way valve 51 are communicated, and the cooling liquid in the motor electronic control cooling module circuit enters the water cooling unit 60 to be cooled. The water cooling unit 60 can quickly take away the heat of the motor by using lower water temperature, so that the normal operation of the motor at peak power can be effectively ensured (without high-temperature alarm).

[0062] As shown in FIG. 11, when the motor is in peak power operation, the motor electronic control assembly 50 is cooled by the water cooling unit 60, and the air conditioning module cools the passenger compartment and the battery 43. Specifically, the air conditioning module for cooling the passenger compartment and the battery 43 is the same as that shown in FIG. 6, and thus will not be described again. In addition, the first on-off valve 61 is closed and the P port and the N port of the second three-way valve 51 are communicated, and the cooling liquid in the motor electronic control cooling module circuit enters the water cooling unit 60 to be cooled. The water cooling unit 60 can quickly take away the heat of the motor by using lower water temperature, so that the normal operation of the motor at peak power can be effectively ensured (without high-temperature alarm). Figure 7 ​​As shown, when the car is parked and the battery 43 is fast-charged, the battery 43 is cooled by the water cooling unit 60 and the first refrigeration circuit. Specifically, the first electromagnetic valve 12 is opened, the second electromagnetic valve 20 and the third electromagnetic valve 30 are both closed, the second electronic expansion valve 32 is closed, and the first electronic expansion valve 15 is opened. The A port and the B port of the first three-way valve 40 are communicated, and the first on-off valve 61 is opened. The cooling liquid flowing out of the battery 43 is divided into two parts, one part flows through the first on-off valve 61 into the water cooling unit 60 for cooling, and the other part flows into the refrigeration machine 16 for cooling, and then flows through the first three-way valve 40 and the first water pump 42. The above two parts of the cooling liquid are collected and then reflow into the battery 43. In this way, the heat dissipation efficiency of the battery 43 can be effectively improved, thereby ensuring the heat dissipation requirement of the large-capacity battery 43 during fast charging.

[0063] In addition, it should be noted that the battery 43 in the embodiment is provided with a heating film, which can heat the battery 43 when the car is cold-started or the battery 43 needs to be heated.

[0064] According to the heat management system of the present application, the air conditioning module can cool or heat the passenger compartment; the battery 43 cooling module is connected to the air conditioning module through the refrigeration machine 16, so that the air conditioning module can cool the battery 43 in addition to cooling the passenger compartment; the motor electronic control cooling module is connected to the air conditioning module through the heat exchanger 33, which can cool the motor electronic control assembly 50, i.e. the air conditioning module can absorb the heat of the motor electronic control assembly 50; in addition, the heat management system is also provided with a water cooling module, which can be connected to the battery 43 cooling module or the motor electronic control cooling module or be in an open circuit state by opening and closing the valve, i.e. the water cooling unit 60 can flexibly cool the battery 43 or the motor electronic control assembly 50 according to the actual working condition of the car, or be in an open circuit state when the above modules can meet the heat dissipation requirement. In this way, the heat management system can meet the fast charging requirement of the large-capacity battery and guarantee the heat management of the motor during peak power operation.

[0065] In addition, the heat management system is also provided with a warm air module, which can achieve the technical effects of defrosting and heating the passenger compartment.

[0066] According to the second aspect of the present application, an automobile is provided, wherein the automobile comprises the heat management system as described above.

[0067] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any person skilled in the art can make modifications or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features within the technical scope disclosed by the present application. The modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be the protection scope of the claims.

Claims

1. A thermal management system, characterized in that, The thermal management system includes: The air conditioning module is equipped with refrigeration circuits and heating circuits connected in parallel. The battery cooling module is connected to the air conditioning module via a refrigeration unit; The motor electronic control cooling module is connected to the air conditioning module via a heat exchanger; The water-cooling module includes a water-cooling unit and valves. The opening and closing of the valves controls the connection of the water-cooling unit to the battery cooling module, the motor control cooling module, or its open-circuit state. Heating module; The refrigeration circuit includes a first refrigeration circuit, which includes a liquid storage tank, a compressor, a first solenoid valve, a first condenser, a first check valve, a first electronic expansion valve, and the refrigeration machine connected in sequence. The refrigeration circuit also includes a second refrigeration circuit connected in parallel with the first refrigeration circuit; the second refrigeration circuit includes a second solenoid valve, a thermostatic expansion valve, an evaporator, and a second check valve connected in sequence; the inlet end of the second solenoid valve is connected between the first condenser and the first check valve, and the outlet end of the second check valve is connected between the liquid storage tank and the refrigeration unit; The heating circuit includes a third solenoid valve and a second condenser connected in sequence; the inlet end of the third solenoid valve is connected between the compressor and the first solenoid valve; the second condenser is connected between the first check valve and the first electronic expansion valve. The heating circuit also includes a second electronic expansion valve and a heat exchanger connected in sequence. The inlet end of the second electronic expansion valve is connected between the second condenser and the first electronic expansion valve, and the outlet end of the heat exchanger is connected between the liquid storage tank and the refrigerator.

2. The thermal management system according to claim 1, characterized in that, The battery cooling module includes a first three-way valve, a first expansion tank, a first water pump, and a battery; the refrigerator, the first three-way valve, the first expansion tank, the first water pump, and the battery are connected sequentially to form a circuit for the battery cooling module.

3. The thermal management system according to claim 2, characterized in that, The water-cooled unit is connected in parallel to both ends of the battery via a first on / off valve, and the first on / off valve is located between the outlet end of the battery and the inlet end of the water-cooled unit.

4. The thermal management system according to claim 3, characterized in that, The water-cooled unit is connected to the motor control component of the motor control cooling module via a second three-way valve.

5. The thermal management system according to claim 4, characterized in that, The heating module includes a heating core, a water heater, a second on / off valve, a third expansion tank, and a third water pump connected in sequence to form a circuit for the heating module.

6. A car, characterized in that, The vehicle is equipped with a thermal management system as described in any one of claims 1 to 5.

Images