Cooling liquid system integrated module and automobile thermal management system

Abstract

The utility model relates to the technical field of automobile thermal management systems, in particular to a cooling liquid system integration module and an automobile thermal management system. The cooling liquid system integration module comprises a first water pump, a second water pump and a third water pump. And a first three-way proportional regulating valve, a second three-way proportional regulating valve, a third three-way proportional regulating valve, a first four-way reversing valve and a second four-way reversing valve. According to the cooling liquid system integrated module, the requirement for heat management among six loads in the automobile heat management system is met, the purpose that the condenser, the motor unit, the radiator, the warm core, the battery cooler and the battery pack unit are integrated in the cooling liquid system integrated module is achieved, and therefore the integration degree of the cooling liquid system integrated module is improved, the installation space is saved, and the installation efficiency is improved. The space utilization rate of the cooling liquid system integration module is improved, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive thermal management systems, in particular to a coolant system integrated module and an automotive thermal management system. Background Technique

[0002] Automotive thermal management systems are widely used in various types of vehicles, including fuel vehicles and new energy vehicles. For fuel vehicles, the thermal management system mainly controls the cooling of the engine and the temperature of the air conditioning system. For new energy vehicles, especially electric vehicles, the thermal management system is more complex and needs to consider the temperature management of the battery, motor, and passenger compartment simultaneously.

[0003] With the development of automotive thermal management systems, people are gradually pursuing higher-integrated automotive thermal management systems. However, the current automotive thermal management systems integrate fewer loads, which undoubtedly reduces the integration degree of the automotive thermal management system, resulting in a larger occupied space of the automotive thermal management system, making the front cabin layout of the vehicle more crowded and increasing costs.

[0004] Therefore, it is urgent to design a coolant system integrated module and an automotive thermal management system to solve the above technical problems. Content of the Utility Model

[0005] The first object of the utility model is to propose a coolant system integrated module with high integration degree, which saves installation space and achieves the purpose of cost saving.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a coolant system integrated module, which includes a condenser, a motor unit, a radiator, a warm core, a battery cooler, a battery pack unit, a first water pump, a second water pump, and a third water pump; as well as a first three-way proportional regulating valve, a second three-way proportional regulating valve, a third three-way proportional regulating valve, a first four-way reversing valve, and a second four-way reversing valve;

[0008] The coolant system integrated module has a mode of heating the battery and the cabin simultaneously. In the mode of heating the battery and the cabin simultaneously:

[0009] The outlet of the condenser is connected to ports a, b, and c of the first three-way proportional regulating valve. Port c of the first three-way proportional regulating valve is sequentially connected to the warm core, the first water pump, and the inlet of the condenser; Port b of the first three-way proportional regulating valve is sequentially connected to ports b and c of the first four-way reversing valve. Port c of the first four-way reversing valve is sequentially connected to the third water pump, the battery pack unit, ports c and a of the third three-way proportional regulating valve, ports c and b of the second four-way reversing valve, and the first water pump. The first water pump is connected to the inlet of the condenser to form a third high-temperature side closed loop;

[0010] The outlet of the battery cooler is sequentially connected to ports d and a of the first four-way reversing valve, and ports a and c of the second three-way proportional regulating valve. Port c of the second three-way proportional regulating valve is sequentially connected to the radiator and the motor unit. The motor unit is connected to ports a and d of the second four-way reversing valve, and the second water pump. The second water pump is connected to the inlet of the battery cooler to form a third low-temperature side closed loop.

[0011] As an alternative technical solution of the coolant system integration module, the coolant system integration module has a battery cooling mode. In the battery cooling mode:

[0012] The outlet of the condenser is sequentially connected to ports a and b of the first three-way proportional regulating valve, ports b and a of the first four-way reversing valve, and ports a and c of the second three-way proportional regulating valve. Port c of the second three-way proportional regulating valve is sequentially connected to the radiator and the motor unit. The motor unit is connected to ports a and b of the second four-way reversing valve. Port b of the second four-way reversing valve is connected to the inlet of the condenser through the first water pump to form a first high-temperature side closed loop.

[0013] As an alternative technical solution of the coolant system integration module, in the battery cooling mode:

[0014] The outlet of the battery cooler is sequentially connected to ports d and c of the first four-way reversing valve. Port c of the first four-way reversing valve is connected to the battery pack unit through the third water pump. The battery pack unit is sequentially connected to ports c and a of the third three-way proportional regulating valve and ports c and d of the second four-way reversing valve. Port d of the second four-way reversing valve is connected to the inlet of the battery cooler through the second water pump to form a first low-temperature side closed loop.

[0015] As an alternative technical solution of the coolant system integration module, the coolant system integration module has a cabin heating mode. In the cabin heating mode:

[0016] The outlet of the condenser is sequentially connected to the port a and port c of the first three-way proportional regulating valve and the warm core, and the warm core is connected to the inlet of the condenser through the first water pump to form a second high-temperature side closed loop.

[0017] As an alternative technical solution of the coolant system integration module, in the vehicle cabin heating mode:

[0018] The outlet of the battery cooler is sequentially connected to the port d and port a of the first four-way reversing valve, the port a and port c of the second three-way proportional regulating valve, and the port c of the second three-way proportional regulating valve is sequentially connected to the radiator and the motor unit. The motor unit is connected to the port a and port d of the second four-way reversing valve and the second water pump in sequence, and the second water pump is connected to the inlet of the battery cooler to form a second low-temperature side closed loop.

[0019] As an alternative technical solution of the coolant system integration module, the coolant system integration module has a battery heating mode. In the battery heating mode:

[0020] The outlet of the condenser is sequentially connected to the port a and port b of the first three-way proportional regulating valve, the port b and port c of the first four-way reversing valve. The port c of the first four-way reversing valve is sequentially connected to the third water pump, the battery pack unit, the port c and port a of the third three-way proportional regulating valve, the port c and port b of the second four-way reversing valve, and the first water pump. The first water pump is connected to the inlet of the condenser to form a fourth high-temperature side closed loop.

[0021] As an alternative technical solution of the coolant system integration module, in the battery heating mode:

[0022] The outlet of the battery cooler is sequentially connected to the port d and port a of the first four-way reversing valve, the port a and port c of the second three-way proportional regulating valve, and the port c of the second three-way proportional regulating valve is sequentially connected to the radiator and the motor unit. The motor unit is connected to the port a and port d of the second four-way reversing valve and the second water pump in sequence, and the second water pump is connected to the inlet of the battery cooler to form a fourth low-temperature side closed loop.

[0023] As an alternative technical solution of the coolant system integration module, the coolant system integration module has a waste heat recovery mode. In the waste heat recovery mode:

[0024] The outlet of the condenser is connected to ports a, b, and c of the first three-way proportional regulating valve. The c port of the first three-way proportional regulating valve is sequentially connected to the warm core, the first water pump, and the inlet of the condenser. The b port of the first three-way proportional regulating valve is sequentially connected to the b port and the c port of the first four-way reversing valve. The c port of the first four-way reversing valve is sequentially connected to the third water pump, the battery pack unit, the c port and the a port of the third three-way proportional regulating valve, the c port and the b port of the second four-way reversing valve, and the first water pump. The first water pump is connected to the inlet of the condenser to form a fifth high-temperature side closed-loop circuit.

[0025] As an alternative technical solution of the coolant system integration module, in the waste heat recovery mode:

[0026] The outlet of the battery cooler is sequentially connected to the d port and the a port of the first four-way reversing valve, and the a port and the b port of the second three-way proportional regulating valve. The b port of the second three-way proportional regulating valve is sequentially connected to the motor unit, the a port and the d port of the second four-way reversing valve, and the second water pump. The second water pump is connected to the inlet of the battery cooler to form a fifth low-temperature side closed-loop circuit.

[0027] The second object of the present invention is to provide an automotive thermal management system, which occupies a smaller space in the front cabin of the vehicle, improves the space utilization rate of the whole vehicle, and has a high integration level.

[0028] To achieve this purpose, the present invention adopts the following technical solutions:

[0029] The present invention provides an automotive thermal management system, which includes a refrigerant circuit and the above-mentioned coolant system integration module. The refrigerant circuit exchanges heat with the coolant system integration module through the condenser and the battery cooler.

[0030] The beneficial effects of the present invention at least include:

[0031] The present utility model provides a coolant system integration module, which includes a condenser, a motor unit, a radiator, a heater core, a battery cooler, a battery pack unit, a first water pump, a second water pump, and a third water pump; as well as a first three-way proportional control valve, a second three-way proportional control valve, a third three-way proportional control valve, a first four-way reversing valve, and a second four-way reversing valve. Through the settings of the first water pump, the second water pump, the third water pump; as well as the first three-way proportional control valve, the second three-way proportional control valve, the third three-way proportional control valve, the first four-way reversing valve, and the second four-way reversing valve, the heat management requirements among six loads in the coolant system integration module are realized, achieving the purpose of integrating the condenser, the motor unit, the radiator, the heater core, the battery cooler, and the battery pack unit into the coolant system integration module, thereby improving the integration degree of the coolant system integration module, saving the installation space, increasing the space utilization rate of the coolant system integration module, and saving costs.

[0032] The present utility model also provides an automotive thermal management system, which occupies a smaller space in the front compartment of the vehicle, improves the space utilization rate of the whole vehicle, increases the integration degree of the automotive thermal management system, and saves costs. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description in the embodiments of the present utility model. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.

[0034] Figure 1 It is the schematic diagram of the coolant system integration module provided by the embodiment of the present utility model;

[0035] Figure 2 It is the schematic diagram of the coolant system integration module in the battery cooling mode provided by the embodiment of the present utility model;

[0036] Figure 3 It is the schematic diagram of the coolant system integration module in the vehicle cabin heating mode provided by the embodiment of the present utility model;

[0037] Figure 4 It is the schematic diagram of the coolant system integration module in the mode of heating the battery and the vehicle cabin simultaneously provided by the embodiment of the present utility model;

[0038] Figure 5 It is the schematic diagram of the coolant system integration module in the battery heating mode provided by the embodiment of the present utility model;

[0039] Figure 6It is a schematic diagram of the coolant system integration module provided by the embodiment of the present utility model in the waste heat recovery mode.

[0040] Reference numerals

[0041] 11. Condenser; 12. Motor unit; 13. Radiator; 14. Warm core; 15. Battery cooler; 16. Battery pack unit;

[0042] 21. First three-way proportional regulating valve; 22. Second three-way proportional regulating valve; 23. Third three-way proportional regulating valve;

[0043] 31. First water pump; 32. Second water pump; 33. Third water pump;

[0044] 41. First four-way reversing valve; 42. Second four-way reversing valve. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0047] It should be noted that: like reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0048] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0049] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set" and "connected" 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0051] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation on the present utility model.

[0052] This embodiment provides a coolant system integration module, which has a simple structure, high integration degree, saves installation space, and achieves the purpose of cost savings.

[0053] Such as Figures 1 - 6As shown in the figure, the integrated module of the coolant system mainly includes a condenser 11, a motor unit 12, a radiator 13, a heating core 14, a battery cooler 15, a battery pack unit 16, a first water pump 31, a second water pump 32, and a third water pump 33; as well as a first three-way proportional control valve 21, a second three-way proportional control valve 22, a third three-way proportional control valve 23, a first four-way reversing valve 41, and a second four-way reversing valve 42.

[0054] In the battery cooling mode, the outlet of the condenser 11 is sequentially connected to the a-port and b-port of the first three-way proportional control valve 21, the b-port and a-port of the first four-way reversing valve 41, and the a-port and c-port of the second three-way proportional control valve 22. The c-port of the second three-way proportional control valve 22 is sequentially connected to the radiator 13 and the motor unit 12. The motor unit 12 is sequentially connected to the a-port and b-port of the second four-way reversing valve 42. The b-port of the second four-way reversing valve 42 is connected to the inlet of the condenser 11 through the first water pump 31 to form a first high-temperature side closed-loop circuit.

[0055] The outlet of the battery cooler 15 is sequentially connected to the d-port and c-port of the first four-way reversing valve 41. The c-port of the first four-way reversing valve 41 is connected to the battery pack unit 16 through the third water pump 33. The battery pack unit 16 is sequentially connected to the c-port and a-port of the third three-way proportional control valve 23 and the c-port and d-port of the second four-way reversing valve 42. The d-port of the second four-way reversing valve 42 is connected to the inlet of the battery cooler 15 through the second water pump 32 to form a first low-temperature side closed-loop circuit.

[0056] Based on the above design, in this embodiment, through the settings of the first water pump 31, the second water pump 32, the third water pump 33; as well as the first three-way proportional control valve 21, the second three-way proportional control valve 22, the third three-way proportional control valve 23, the first four-way reversing valve 41, and the second four-way reversing valve 42, the thermal management requirements among the six loads in the integrated module of the coolant system are realized, and the purpose of integrating the condenser 11, the motor unit 12, the radiator 13, the heating core 14, the battery cooler 15, and the battery pack unit 16 into the integrated module of the coolant system is achieved. Thus, the integration degree of the integrated module of the coolant system is improved, the installation space is saved, the space utilization rate of the integrated module of the coolant system is increased, and the cost is saved.

[0057] The first three-way proportional control valve 21, the second three-way proportional control valve 22, and the third three-way proportional control valve 23 in this embodiment can all change parameters such as the flow rate, pressure, and temperature of the coolant according to control signals, so as to achieve precise control of the coolant. The first three-way proportional control valve 21, the second three-way proportional control valve 22, and the third three-way proportional control valve 23 in this embodiment are all common components on the market, and their working principles and specific structures will not be elaborated here.

[0058] The first four-way reversing valve 41 and the second four-way reversing valve 42 in this embodiment are used to change the flow direction of the coolant in the pipeline, so that the coolant can flow to the corresponding load for heat exchange according to specific actual requirements.

[0059] The first water pump 31, the second water pump 32, and the third water pump 33 in this embodiment can drive the coolant to improve the flow rate of the coolant, thereby improving the working efficiency of the coolant system integration module.

[0060] It can be understood that the coolant in the coolant system integration module in this embodiment exchanges heat with the refrigerant in the vehicle thermal management system (the flow path of the refrigerant is not shown in the figure), so as to be able to heat or cool the coolant, thereby forming high-temperature-side coolant and low-temperature-side coolant in different working modes, so as to meet the heating or cooling requirements of different loads by the coolant in different working modes.

[0061] In addition, the first water pump 31, the second water pump 32, the third water pump 33; the first three-way proportional regulating valve 21, the second three-way proportional regulating valve 22, the third three-way proportional regulating valve 23, the first four-way reversing valve 41, and the second four-way reversing valve 42 in this embodiment are all arranged in the middle of the coolant system integration module, and the six loads are divided into two columns and are respectively located on both sides of the coolant system integration module. This facilitates the connection of the flow paths between the various loads, reduces the length of the flow paths, thereby reducing the heat loss of the coolant in the flow paths, improving the heat exchange efficiency, saving energy consumption and cost. At the same time, such an arrangement can also improve the integration degree of the coolant system integration module, save the installation space, has a simple structure and occupies a small space. In addition, it can also improve the convenience of installing the flow paths between the various loads, improve the assembly efficiency, and is also beneficial to the later maintenance and repair.

[0062] The coolant system integration module in this embodiment has multiple working modes. For example, the coolant system integration module has a battery cooling mode, a cabin heating mode, a battery and cabin simultaneous heating mode, a battery heating mode, and a waste heat recovery mode. This can meet the needs of users for different modes, improve the user experience, and improve the functional diversity and flexible applicability of the coolant system integration module.

[0063] The flow direction of the coolant in the coolant system integration module in different working modes will be described below.

[0064] It should be noted that Figures 1 - 6 The abbreviations of the components in

[0065] Condenser 11 (WCC), motor unit 12 (EDU), radiator 13 (LTR), heater core 14 (HTR), battery cooler 15 (Chiller), battery pack unit 16 (BAT);

[0066] First water pump 31 (CP1), second water pump 32 (CP2), third water pump 33 (CP3);

[0067] First three-way proportional regulating valve 21 (TWV1), second three-way proportional regulating valve 22 (TWV2), third three-way proportional regulating valve 23 (TWV3);

[0068] First four-way reversing valve 41 (FWV1) and second four-way reversing valve 42 (FWV2).

[0069] As Figure 2 shown, when the coolant system integrated module is in the battery cooling mode, the coolant (high temperature) flowing out of the outlet of the condenser 11 sequentially passes through the a port and b port of the first three-way proportional regulating valve 21 and then flows to the b port and a port of the first four-way reversing valve 41, and the a port and c port of the second three-way proportional regulating valve 22. The first three-way proportional regulating valve 21 and the second three-way proportional regulating valve 22 are used to adjust the flow rate of the coolant to achieve the purpose of reasonably distributing the heat of the coolant, and the first four-way reversing valve 41 is used to change the flow direction of the coolant. The coolant flowing through the second three-way proportional regulating valve 22 flows into the radiator 13 for heat dissipation to reduce the temperature of the coolant. Then, the coolant flowing out of the radiator 13 flows into the motor unit 12 and takes away the heat of the motor unit 12. Finally, the coolant flowing out of the motor unit 12 sequentially passes through the a port and b port of the second four-way reversing valve 42 and the first water pump 31 and then flows back to the inlet of the condenser 11 to complete the circulating flow of the coolant in the first high-temperature side closed-loop circuit.

[0070] The coolant (low temperature) flowing out of the battery cooler 15 passes through the d port and c port of the first four-way reversing valve 41 and then enters the third water pump 33. Then, the coolant is driven by the third water pump 33 into the battery pack unit 16, so that the coolant exchanges heat with the heat of the battery pack unit 16, and further enables the coolant to take away the heat of the battery pack unit 16 to achieve the cooling effect on the battery pack unit 16. The coolant flowing out of the battery pack unit 16 sequentially enters the third three-way proportional regulating valve 23, the second four-way reversing valve 42, and the second water pump 32, and finally is driven by the second water pump 32 into the battery cooler 15, thereby completing the circulating flow of the coolant in the first low-temperature side closed-loop circuit.

[0071] In the first high-temperature side closed-loop circuit of this embodiment, the heat of the coolant is exchanged with the refrigerant in the refrigerant circuit through the condenser 11, so that the coolant flowing out of the condenser 11 can be in a high-temperature state. In the first low-temperature side closed-loop circuit of this embodiment, the heat of the coolant is exchanged with the refrigerant in the refrigerant circuit through the battery cooler 15, so that the coolant flowing out of the battery cooler 15 can be in a low-temperature state.

[0072] As Figure 3 shown, when the coolant system integration module is in the vehicle cabin heating mode, the coolant (high temperature) flowing out of the condenser 11 passes through the a port and the c port of the first three-way proportional regulating valve 21 in sequence and then flows into the warm core 14. At this time, the coolant can heat the warm core 14, so that the warm core 14 releases heat to the passenger cabin. The coolant flowing out of the warm core 14 flows back into the condenser 11 after passing through the first water pump 31, completing the circulating flow of the coolant in the second high-temperature side closed-loop circuit.

[0073] The coolant (low temperature) flowing out of the battery cooler 15 passes through the first four-way reversing valve 41 and the second three-way proportional regulating valve 22 in sequence and then flows into the radiator 13. At this time, the coolant exchanges heat with the external environment in the radiator 13. The coolant flowing out of the radiator 13 flows into the motor unit 12. At this time, the coolant takes away the heat of the motor unit 12. Finally, the coolant flowing out of the motor unit 12 passes through the second four-way reversing valve 42 and flows into the second water pump 32, and finally the second water pump 32 drives the coolant to flow back into the battery cooler 15, completing the circulating flow of the coolant in the second low-temperature side closed-loop circuit.

[0074] In the second high-temperature side closed-loop circuit of this embodiment, the heat of the coolant is exchanged with the refrigerant in the refrigerant circuit through the condenser 11, so that the coolant flowing out of the condenser 11 can be in a high-temperature state. In the second low-temperature side closed-loop circuit of this embodiment, the heat of the coolant is exchanged with the refrigerant in the refrigerant circuit through the battery cooler 15, so that the coolant flowing out of the battery cooler 15 can be in a low-temperature state.

[0075] As Figure 4As shown, when the coolant system integrated module is in the mode of heating the battery and the passenger compartment simultaneously, the coolant (high temperature) flowing out of the condenser 11 is divided into two parts after passing through the first three-way proportional regulating valve 21: one part of the coolant flows out from port c of the first three-way proportional regulating valve 21 and flows to the warm core 14. At this time, the coolant can heat the warm core 14, so that the warm core 14 releases heat into the passenger compartment. The coolant flowing out of the warm core 14 flows back to the condenser 11 after passing through the first water pump 31. The other part of the coolant flows out from port b of the first three-way proportional regulating valve 21 and sequentially flows to port b and port c of the first four-way reversing valve 41, then flows into the third water pump 33, and is driven by the third water pump 33 to the battery pack unit 16 to realize the heat exchange between the coolant and the battery pack unit 16, complete the heating requirement of the battery pack unit 16. Then the coolant flowing out of the battery pack unit 16 passes through the third three-way proportional regulating valve 23 and the second four-way reversing valve 42 in sequence and converges with the coolant flowing out of the warm core 14. Finally, the converged coolant is driven back to the condenser 11 by the first water pump 31 to complete the circulating flow of the coolant in the third high-temperature side closed-loop circuit.

[0076] The coolant (low temperature) flowing out of the battery cooler 15 sequentially passes through the first four-way reversing valve 41 and the second three-way proportional regulating valve 22 and then flows into the radiator 13. At this time, the coolant exchanges heat with the external environment in the radiator 13. The coolant flowing out of the radiator 13 flows into the motor unit 12. At this time, the coolant takes away the heat of the motor unit 12. Finally, the coolant flowing out of the motor unit 12 is reversed by the second four-way reversing valve 42 and then flows into the second water pump 32, and finally the second water pump 32 drives the coolant to flow back to the battery cooler 15 to complete the circulating flow of the coolant in the third low-temperature side closed-loop circuit.

[0077] In this embodiment, the heat of the coolant in the third high-temperature side closed-loop circuit is exchanged with the refrigerant in the refrigerant circuit through the condenser 11, so that the coolant flowing out of the condenser 11 can be in a high-temperature state. The heat of the coolant in the third low-temperature side closed-loop circuit in this embodiment is exchanged with the refrigerant in the refrigerant circuit through the battery cooler 15, so that the coolant flowing out of the battery cooler 15 can be in a low-temperature state.

[0078] As Figure 5As shown, when the coolant system integration module is in the battery heating mode, the coolant (high temperature) flowing out of the condenser 11 passes through ports a and b of the first three-way proportional regulating valve 21 and ports b and c of the first four-way reversing valve 41 and then flows into the third water pump 33. Driven by the third water pump 33, it flows into the battery pack unit 16 to achieve heat exchange between the coolant and the battery pack unit 16, completing the heating requirement of the battery pack unit 16. Then, the coolant flowing out of the battery pack unit 16 passes through the third three-way proportional regulating valve 23 and the second four-way reversing valve 42 for throttling and then flows into the first water pump 31. Finally, it is driven by the first water pump 31 back to the condenser 11, completing the circulating flow of the coolant in the fourth high-temperature side closed-loop circuit.

[0079] The coolant (low temperature) flowing out of the battery cooler 15 successively passes through the first four-way reversing valve 41 and the second three-way proportional regulating valve 22 and then flows into the radiator 13. At this time, the coolant exchanges heat with the external environment in the radiator 13. The coolant flowing out of the radiator 13 flows into the motor unit 12. At this time, the coolant takes away the heat of the motor unit 12. Finally, the coolant flowing out of the motor unit 12 passes through the second four-way reversing valve 42 for commutation and then flows into the second water pump 32. Finally, it is driven by the second water pump 32 to flow back into the battery cooler 15, completing the circulating flow of the coolant in the fourth low-temperature side closed-loop circuit.

[0080] In this embodiment, the heat of the coolant in the fourth high-temperature side closed-loop circuit is exchanged with the refrigerant in the refrigerant circuit through the condenser 11 so that the coolant flowing out of the condenser 11 can be in a high-temperature state. The heat of the coolant in the fourth low-temperature side closed-loop circuit in this embodiment is exchanged with the refrigerant in the refrigerant circuit through the battery cooler 15 so that the coolant flowing out of the battery cooler 15 can be in a low-temperature state.

[0081] Generally, the coolant on the low-temperature side can only exchange heat with the environment through the radiator 13. In this way, in cold winter, the heat absorption effect of the coolant from the environment through the radiator 13 is not good, affecting the heat exchange effect. At the same time, the heat of the motor unit 12 is not well utilized, resulting in heat loss and increasing costs.

[0082] Therefore, the coolant system integration module in this embodiment can well solve the technical problems that when the environmental temperature is relatively low, the coolant cannot absorb heat from the environment through the radiator 13 and the heat of the motor unit 12 is wasted through the waste heat recovery mode.

[0083] As Figure 6 shown, when the coolant system integration module is in the waste heat recovery mode, the condenser 11 is connected to both the battery pack unit 16 and the warm core 14 and forms a fifth high-temperature side closed-loop circuit; the motor unit 12 is connected to the battery cooler 15 and forms a fifth low-temperature side closed-loop circuit.

[0084] Specifically, when the coolant system integration module is in the waste heat recovery mode, the coolant (high temperature) flowing out of the condenser 11 is divided into two parts after passing through the first three-way proportional regulating valve 21: one part of the coolant flows out from the port c of the first three-way proportional regulating valve 21 and flows to the warm core 14. At this time, the coolant can heat the warm core 14, so that the warm core 14 releases heat to the passenger compartment. The coolant flowing out of the warm core 14 flows back to the condenser 11 after passing through the first water pump 31. The other part of the coolant flows out from the port b of the first three-way proportional regulating valve 21 and sequentially flows to the port b and port c of the first four-way reversing valve 41, then flows into the third water pump 33, and is driven by the third water pump 33 to the battery pack unit 16 to realize the heat exchange between the coolant and the battery pack unit 16, complete the heating requirement of the battery pack unit 16, and then the coolant flowing out of the battery pack unit 16 passes through the third three-way proportional regulating valve 23 and the second four-way reversing valve 42 in sequence and converges with the coolant flowing out of the warm core 14. Finally, the converged coolant is driven back to the condenser 11 by the first water pump 31 to complete the circulating flow of the coolant in the fifth high-temperature side closed-loop circuit.

[0085] The coolant (low temperature) flowing out of the battery cooler 15 flows through the port d and port a of the first four-way reversing valve 41 and the port a and port b of the second three-way proportional regulating valve 22 and then flows into the motor unit 12, so that the coolant takes away the heat of the motor unit 12. The coolant flowing out of the motor unit 12 flows into the second water pump 32 after passing through the second four-way reversing valve 42, and then the second water pump 32 drives the coolant to flow back to the battery cooler 15 to complete the circulating flow of the coolant in the fifth low-temperature side closed-loop circuit.

[0086] In this way, in the waste heat recovery mode, the coolant can absorb the heat of the motor unit 12, avoid the heat dissipation of the motor unit 12, realize the function of recovering the waste heat of the motor unit 12, save energy consumption and cost.

[0087] In this embodiment, the heat of the coolant in the fifth high-temperature side closed-loop circuit is exchanged with the refrigerant in the refrigerant circuit through the condenser 11, so that the coolant flowing out of the condenser 11 can be in a high-temperature state. The heat of the coolant in the fifth low-temperature side closed-loop circuit in this embodiment is exchanged with the refrigerant in the refrigerant circuit through the battery cooler 15, so that the coolant flowing out of the battery cooler 15 can be in a low-temperature state.

[0088] As described above, the coolant system integration module in this embodiment realizes the purpose of integrating six loads, namely the condenser 11, the motor unit 12, the radiator 13, the warm core 14, the battery cooler 15, and the battery pack unit 16, into the coolant system integration module through the settings of the first water pump 31, the second water pump 32, the third water pump 33; and the first three-way proportional regulating valve 21, the second three-way proportional regulating valve 22, the third three-way proportional regulating valve 23, the first four-way reversing valve 41, and the second four-way reversing valve 42, improving the integration degree of the coolant system integration module and saving installation space. At the same time, the coolant system integration module can also achieve multiple working modes, thus being able to meet the actual needs of users, improving the user experience, and enhancing the flexible applicability.

[0089] It should be noted that, as Figures 2 - 6 shown, the first high-temperature side closed-loop circuit, the second high-temperature side closed-loop circuit, the third high-temperature side closed-loop circuit, the fourth high-temperature side closed-loop circuit, and the fifth high-temperature side closed-loop circuit in this embodiment are all represented by dashed lines; the first low-temperature side closed-loop circuit, the second low-temperature side closed-loop circuit, the third low-temperature side closed-loop circuit, the fourth low-temperature side closed-loop circuit, and the fifth low-temperature side closed-loop circuit are all represented by multi-segment lines.

[0090] It can be understood that the coolant system integration module in this embodiment further includes a controller, which is electrically connected to the first water pump 31, the second water pump 32, the third water pump 33; and the first three-way proportional regulating valve 21, the second three-way proportional regulating valve 22, the third three-way proportional regulating valve 23, the first four-way reversing valve 41, and the second four-way reversing valve 42, so that the controller can control the switching of the above five working modes to meet the needs of users. The controller in this embodiment is a component in the prior art. For example, it can be a conventional PLC controller. Therefore, the working principle and specific structure of the controller are not described in detail in this embodiment.

[0091] This embodiment also provides an automotive thermal management system, which includes a refrigerant circuit and the above-mentioned coolant system integration module. The refrigerant circuit exchanges heat with the coolant system integration module through the condenser 11 and the battery cooler 15.

[0092] Since the automotive thermal management system adopts the above-mentioned coolant system integration module, the space occupied by the automotive thermal management system in the vehicle front compartment is smaller, improving the space utilization rate of the whole vehicle, enhancing the integration degree of the automotive thermal management system, and saving costs; at the same time, the working modes of the automotive thermal management system are diverse and can meet the different needs of users.

[0093] Obviously, the above are only the preferred embodiments of the present utility model and the applied technical principles. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments here, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in more detail through the above embodiments, the present utility model is not limited to the above embodiments. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

[0094] Note that in the description of this specification, the descriptions referring to the terms "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

Claims

1. Coolant system integrated module, characterized in that: It comprises a condenser (11), a motor unit (12), a radiator (13), a heater core (14), a battery cooler (15), a battery pack unit (16), a first water pump (31), a second water pump (32), and a third water pump (33); and a first three-way proportional regulating valve (21), a second three-way proportional regulating valve (22), a third three-way proportional regulating valve (23), a first four-way reversing valve (41), and a second four-way reversing valve (42); The coolant system integrated module has a battery and cabin heating mode. In the battery and cabin heating mode: The outlet of the condenser (11) is connected to the port a, port b and port c of the first three-way proportional regulating valve (21); the port c of the first three-way proportional regulating valve (21) is connected to the heater core (14), the first water pump (31) and the inlet of the condenser (11) in sequence; the port b of the first three-way proportional regulating valve (21) is connected to the port b and port c of the first four-way reversing valve (41) in sequence; the port c of the first four-way reversing valve (41) is connected to the third water pump (33), the battery pack unit (16), the port c and port a of the third three-way proportional regulating valve (23), the port c and port b of the second four-way reversing valve (42), and the first water pump (31) in sequence; the first water pump (31) is connected to the inlet of the condenser (11) to form a third high-temperature side closed loop; The outlet of the battery cooler (15) is connected in sequence to the d port and the a port of the first four-way reversing valve (41), and the a port and the c port of the second three-way proportional regulating valve (22), and the c port of the second three-way proportional regulating valve (22) is connected in sequence to the radiator (13) and the motor unit (12), the motor unit (12) is connected in sequence to the a port and the d port of the second four-way reversing valve (42), and the second water pump (32), and the second water pump (32) is connected in sequence to the inlet of the battery cooler (15), so as to form a third low-temperature side closed loop.

2. The coolant system integrated module according to claim 1, characterized in that: The coolant system integrated module has a battery cooling mode. In the battery cooling mode: The outlet of the condenser (11) is connected in sequence to the port a and the port b of the first three-way proportional regulating valve (21), the port b and the port a of the first four-way reversing valve (41), and the port a and the port c of the second three-way proportional regulating valve (22); the port c of the second three-way proportional regulating valve (22) is connected in sequence to the radiator (13) and the motor unit (12); the motor unit (12) is connected in sequence to the port a and the port b of the second four-way reversing valve (42); the port b of the second four-way reversing valve (42) is connected to the inlet of the condenser (11) through the first water pump (31) to form a first high-temperature side closed loop.

3. The coolant system integrated module according to claim 2, characterized in that: In the battery cooling mode described: The outlet of the battery cooler (15) is connected in sequence with the port d and the port c of the first four-way reversing valve (41); the port c of the first four-way reversing valve (41) is connected to the battery pack unit (16) through the third water pump (33); the battery pack unit (16) is connected in sequence with the port c and the port a of the third three-way proportional regulating valve (23) and the port c and the port d of the second four-way reversing valve (42); the port d of the second four-way reversing valve (42) is connected to the inlet of the battery cooler (15) through the second water pump (32) to form a first low-temperature side closed loop.

4. The coolant system integrated module according to claim 1, characterized in that: The coolant system integrated module has a cabin heating mode. In the cabin heating mode: The outlet of the condenser (11) is connected in sequence to the port a and the port c of the first three-way proportional regulating valve (21) and the heater core (14), and the heater core (14) is connected to the inlet of the condenser (11) through the first water pump (31) to form a second high-temperature side closed loop.

5. The coolant system integrated module according to claim 4, characterized in that: In the cabin heating mode: The outlet of the battery cooler (15) is connected in sequence to the d port and the a port of the first four-way reversing valve (41), and the a port and the c port of the second three-way proportional regulating valve (22), and the c port of the second three-way proportional regulating valve (22) is connected in sequence to the radiator (13) and the motor unit (12), the motor unit (12) is connected in sequence to the a port and the d port of the second four-way reversing valve (42), and the second water pump (32), and the second water pump (32) is connected in sequence to the inlet of the battery cooler (15), so as to form a second low-temperature side closed loop.

6. The coolant system integrated module according to claim 1, characterized in that: The coolant system integrated module has a battery heating mode. In the battery heating mode: The outlet of the condenser (11) is connected in sequence with the port a and the port b of the first three-way proportional regulating valve (21), and the port b and the port c of the first four-way reversing valve (41); the port c of the first four-way reversing valve (41) is connected in sequence with the third water pump (33), the battery pack unit (16), the port c and the port a of the third three-way proportional regulating valve (23), the port c and the port b of the second four-way reversing valve (42), and the first water pump (31); the first water pump (31) is connected to the inlet of the condenser (11) to form a fourth high-temperature side closed loop.

7. The coolant system integrated module according to claim 6, characterized in that: In the battery heating mode described: The outlet of the battery cooler (15) is connected in sequence to the d port and the a port of the first four-way reversing valve (41), and the a port and the c port of the second three-way proportional regulating valve (22), and the c port of the second three-way proportional regulating valve (22) is connected in sequence to the radiator (13) and the motor unit (12), the motor unit (12) is connected in sequence to the a port and the d port of the second four-way reversing valve (42), and the second water pump (32), and the second water pump (32) is connected in sequence to the inlet of the battery cooler (15), so as to form a fourth low-temperature side closed loop.

8. The coolant system integrated module according to claim 1, characterized in that: The coolant system integrated module has a waste heat recovery mode. In the waste heat recovery mode: The outlet of the condenser (11) is connected to the port a, port b and port c of the first three-way proportional regulating valve (21); the port c of the first three-way proportional regulating valve (21) is connected to the heater core (14), the first water pump (31) and the inlet of the condenser (11) in sequence; the port b of the first three-way proportional regulating valve (21) is connected to the port b and port c of the first four-way reversing valve (41) in sequence; the port c of the first four-way reversing valve (41) is connected to the third water pump (33), the battery pack unit (16), the port c and port a of the third three-way proportional regulating valve (23), the port c and port b of the second four-way reversing valve (42), and the first water pump (31) in sequence; the first water pump (31) is connected to the inlet of the condenser (11) to form a fifth high-temperature side closed loop.

9. The coolant system integrated module according to claim 8, characterized in that: In the waste heat recovery mode: The outlet of the battery cooler (15) is connected in sequence to the d port and the a port of the first four-way reversing valve (41), and the a port and the b port of the second three-way proportional regulating valve (22), and the b port of the second three-way proportional regulating valve (22) is connected in sequence to the motor unit (12), the a port and the d port of the second four-way reversing valve (42), and the second water pump (32), and the second water pump (32) is connected in sequence to the inlet of the battery cooler (15), so as to form a fifth low-temperature side closed loop.

10. Automobile thermal management system, characterized in that, The automotive thermal management system comprises a refrigerant circuit and a coolant system integrated module according to any one of claims 1 to 9, wherein the refrigerant circuit exchanges heat with the coolant system integrated module through the condenser (11) and the battery cooler (15).

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