WO2023236957A1

WO2023236957A1 - Thermal management system and vehicle

Info

Publication number: WO2023236957A1
Application number: PCT/CN2023/098640
Authority: WO
Inventors: 刘超鹏; 叶文; 陈君
Original assignee: 华为技术有限公司
Priority date: 2022-06-09
Filing date: 2023-06-06
Publication date: 2023-12-14
Also published as: CN117246093A

Abstract

A thermal management system and a vehicle. A second heat exchanger (40) is connected in series to a second pipeline (200); a first heat exchanger (30) is connected in series on a first pipeline (100); the first pipeline (100) is connected in parallel to the second pipeline (200) by means of a first pipe section (300) and a second pipe section (400); a first multi-way valve (500) is provided at the inlet end of the first pipe section (300) or the second pipe section (400); by adjusting the opening degrees of ports in the first multi-way valve (500), when the first heat exchanger (30) and the second heat exchanger (40) work at the same time, part of a cooling liquid in the second pipeline (200) can enter the first pipeline (100) to adjust the temperature of the cooling liquid entering the first heat exchanger (30), so that the temperature of a device (10) to be liquid cooled (such as a battery) is controlled within a suitable range, the mass flow entering the second heat exchanger (40) and the temperature thereof can be ensured to be within suitable ranges, and the temperature of a structure (20) waiting for temperature adjustment (such as a passenger compartment) is adjusted to a suitable range. Thus, the effect of balancing the cooling capacity and temperature of the device to be liquid cooled and the structure waiting for temperature adjustment is achieved, and the structure and a control method of the heat management system are simplified.

Description

Thermal management systems and vehicles

This application claims priority to the Chinese patent application filed with the China Patent Office on June 9, 2022, with application number 202210644907.6 and the application name "Thermal Management System and Vehicle", the entire content of which is incorporated into this application by reference.

Technical field

Embodiments of the present application relate to the technical field of new energy electric vehicles, and in particular to a thermal management system and a vehicle.

Background technique

At present, electric vehicles such as pure electric vehicles are gradually becoming popular in the market, and the thermal management technology of batteries in pure electric vehicles is also constantly developing. Since the optimal temperature range of the battery core is narrow (generally 20°C to 45°C), the inlet temperature of the coolant and the temperature uniformity within the battery pack are particularly important when thermally managing the battery pack.

Taking the cooling mode as an example, in order to solve the problem of simultaneously matching the temperature and cooling capacity of electronic devices to be liquid-cooled (such as battery packs in electric vehicles) and other structures to be cooled (such as the passenger compartment), traditional thermal management systems can include condensation (Condenser) and an air-cooling humidifier and a battery cooling evaporator (Battery Chiller) connected in parallel at the condenser outlet, wherein the air-cooling humidifier is located in the passenger compartment, and the inlet of the air-cooling humidifier is connected to the air-cooling humidifier through the first valve. The outlet end of the condenser is connected, and the outlet end of the air cooling humidifier is connected with the inlet end of the condenser. The battery cooling evaporator is connected in series on the battery pack circuit. The inlet end of the battery cooling evaporator is connected to the outlet end of the condenser through the second valve. One outlet end of the battery cooling evaporator is connected to the inlet end of the battery pack, and the other is connected to the inlet end of the battery pack. One outlet port is connected to the condenser. When cooling the passenger compartment and the battery pack at the same time, the first valve and the second valve can be opened so that part of the refrigerant in the condenser enters the air cooling humidifier to cool the air in the passenger compartment, and the other part Entering the battery cooling evaporator, the coolant in the battery pack circuit is cooled by the battery cooling evaporator and then enters the battery pack to take away the heat in the battery pack. In addition, by controlling the opening of the first valve and the second valve, it is ensured that the temperature range and cooling capacity of the passenger compartment and the temperature range and cooling capacity of the battery pack are matched at the same time, that is, the temperature and cooling capacity of the passenger compartment and the battery pack are balanced.

However, in the above thermal management system, the fluid flowing through the first valve and the second valve is a high-pressure refrigerant such as a refrigerant, so the first valve and the second valve are generally a thermostatic expansion valve (TXV) or an electronic valve. The expansion valve (Electronic expansion valve, EXV for short) has a high cost and complicated opening control, which makes the collaborative control process of the first valve and the second valve in the thermal management system more complicated, which improves the thermal management system. The complexity of the control method.

Contents of the invention

Embodiments of the present application provide a thermal management system and a vehicle. The thermal management system can balance the cooling capacity and temperature of electronic devices to be liquid-cooled and other structures to be temperature-regulated. The structure and control method of the thermal management system are simple.

Embodiments of the present application provide a thermal management system, including a first heat exchanger, a second heat exchanger, a first pipe section, a second pipe section and a first multi-way valve. The first heat exchanger is used to heat the device to be liquid-cooled. exchange, and the inlet end of the first heat exchanger passes through the A pipeline is connected to the outlet end of the first heat exchanger and the second heat exchanger. The second heat exchanger is used for heat exchange with the structure to be tempered. The inlet end of the second heat exchanger is connected to the second heat exchanger through the second pipeline. The outlet end of the heat exchanger is connected, and the inlet end of the first pipe section is connected with the second pipeline and is connected in series to the outlet end of the second heat exchanger. The outlet end of the first pipe section is connected with the first pipeline and is connected in series with the inlet end of the first heat exchanger. The inlet end of the second pipe section is connected to the first pipe and is connected in series to the outlet end of the first heat exchanger; the outlet end of the second pipe section is connected to the second pipe and is connected in series to the inlet end of the second heat exchanger. The first multi-way valve includes a first interface, a second interface and a third interface. The inlet end of the first pipe section is connected to the second pipeline through the first interface. The first multi-way valve is connected in series through the second interface and the third interface. On the second pipeline, or the inlet end of the second pipeline section is connected to the first pipeline through the first interface, and the first multi-way valve is connected in series on the first pipeline through the second interface and the third interface. Wherein, the first interface, the second interface and the third interface of the first multi-way valve are used for conduction in the first working mode, so as to form the first pipeline and the first heat exchanger into a second pipeline, and connect the first pipeline to the first heat exchanger. The second pipeline and the second heat exchanger form a first pipeline, and the cooling liquid in the first pipeline is mixed with the cooling liquid in the second pipeline through the first pipeline section, and the cooling liquid in the second pipeline is mixed through the first pipeline section. The second pipe section is mixed with the cooling liquid in the first pipe, wherein the first working mode is a mode in which both the first heat exchanger and the second heat exchanger are in a heat exchange state.

In the embodiment of the present application, a second pipeline and a first pipeline are provided in the thermal management system, and the first pipeline is connected in parallel to the second pipeline through the first pipeline section and the second pipeline section. In addition, at the inlet end of the first pipeline section A first multi-way valve is arranged on the second pipeline, or a first multi-way valve is arranged on the inlet end of the second pipeline section and the first pipeline. In this way, by opening the opening of each interface in the first multi-way valve, The first working mode of the thermal management system is realized, that is, the mode in which the first heat exchanger and the second heat exchanger work simultaneously. For example, when the first heat exchanger and the second heat exchanger work at the same time (that is, when the liquid-cooled device to be treated and the structure to be tempered are heated at the same time), and the temperature of the coolant in the second pipeline is higher than that in the first pipeline, When the temperature of the coolant reaches the temperature of the coolant, the first interface, the second interface and the third interface of the first multi-way valve can be opened, so that the first pipeline and the first heat exchanger form a first circulation loop, so that the first circulation loop After the cooling liquid enters the first heat exchanger, it can perform heat exchange with the device to be liquid-cooled. In addition, the second pipeline and the second heat exchanger form a second circulation loop, so that the second circulation loop After the coolant enters the second heat exchanger, it can conduct heat exchange with the structure to be temperature-regulated. In addition, part of the coolant in the second pipeline can enter the first pipeline through the first pipe section to increase the amount of heat in the first pipe. The mass flow rate and temperature of the coolant in the path are increased, thereby increasing the temperature at the inlet end of the first heat exchanger, so that the first heat exchanger can cool the device to be liquid-cooled (such as a battery) to a suitable range. In addition, after the first heat exchanger A part of the cooling liquid of the heat exchanger can enter the second pipeline through the second pipe section, ensuring that the mass flow rate and temperature of the second pipeline entering the second heat exchanger are within the appropriate range, so that the second heat exchanger The device adjusts the temperature of the structure to be tempered (such as the passenger compartment) to an appropriate range, thereby balancing the cooling capacity and temperature of the liquid-cooled device and the structure to be tempered, and by directly mixing the coolant, the The temperature adjustment efficiency of the coolant in the first circulation loop improves the heat exchange efficiency of the thermal management system and reduces power consumption. In addition, the thermal management system of the embodiment of the present application has a simple structure, a simple and convenient control method, and low cost.

In a feasible implementation, the second pipeline includes a second auxiliary section and two second main sections, wherein a first end of one second main section is connected to the outlet end of the second heat exchanger, and one of the second main sections is connected to the outlet end of the second heat exchanger. The second ends of the two main sections are connected to the inlet end of the second auxiliary section and the inlet end of the first pipe section respectively, the first end of the other second main section is connected to the inlet end of the second heat exchanger, and the other second end is connected to the inlet end of the second heat exchanger. The second end of the main section is connected to the outlet end of the second auxiliary section and the outlet end of the second pipe section respectively. A temperature control component and a first water pump are connected in series on the second pipeline. The temperature control component is connected in series at the inlet end of the second heat exchanger. On the second main section, one end of the temperature control component is connected to the inlet end of the second heat exchanger, and the other end of the temperature control component is connected to the outlet end of the first water pump.

By arranging a temperature control component in the second pipeline, the temperature of the coolant in the second pipeline can be adjusted through the temperature control component to ensure that the temperature at the inlet end of the second heat exchanger reaches an appropriate range. In this way, when the temperature is to be The liquid cooling device and the structure to be temperature-controlled are heated or cooled (for example, heating) at the same time, that is, the second pipeline and the first pipeline of the thermal management system work at the same time, and When the target temperature of the coolant in the second pipeline (i.e., the target temperature at the inlet end of the second heat exchanger) is higher than the target temperature of the coolant in the first pipeline (i.e., the target temperature at the inlet end of the first heat exchanger), you can first After the temperature of the coolant in the second pipeline is raised to the target temperature through the temperature control component, part of the coolant in the second pipeline enters the first multi-way valve by adjusting the openings of the three interfaces of the first multi-way valve. in the pipeline to increase the temperature and mass flow rate of the cooling liquid entering the first heat exchanger in the first pipeline, so that the temperature at the inlet end of the first heat exchanger reaches the target temperature. In addition, when the liquid cooling device is to be cooled or heated (for example, heated) alone, the openings of the three interfaces of the first multi-way valve can be adjusted so that the cooling liquid flowing out from the outlet end of the first heat exchanger can pass through The second pipe section enters the temperature control component in the second pipeline. After the temperature control component heats the coolant, it can flow out from the outlet end of the temperature control component and pass through part of the second main section of the second pipeline and the first The pipe section enters the first pipeline and finally enters the first heat exchanger, so that the high-temperature cooling liquid entering the first heat exchanger exchanges heat with the device to be liquid-cooled. In addition, by arranging the first water pump on the second main section, the rotation speed of the water pump can be adjusted to adjust the mass flow rate of the coolant on the second main section, thereby accurately controlling the mass flow rate of the coolant entering the second heat exchanger. , ensure that the coolant at the inlet end of the second heat exchanger is within the target temperature, and ensure that the temperature of the structure to be tempered reaches the target temperature.

In a feasible implementation, the first water pump is connected in series between the outlet end of the second pipe section and the temperature control component end. In this way, the flow rate from the outlet end of the first heat exchanger to the temperature control component through the second pipe section can be improved. The power of the coolant improves the reliability of the coolant from the first pipeline entering the second pipeline, ensuring that the liquid-cooled device is heated (or refrigerated) or the liquid-cooled device and the temperature-adjusted structure are heated at the same time. (or cooling), part or all of the cooling liquid flowing out from the outlet end of the first heat exchanger can enter the first main section of the second pipeline through the second pipe section.

In a feasible implementation, the first pipeline includes a first auxiliary section and two first main sections, wherein a first end of one first main section is connected to the inlet end of the first heat exchanger, and one of the first main sections is connected to the inlet end of the first heat exchanger. The second end of one main section is connected to the outlet end of the first auxiliary section and the outlet end of the first pipe section respectively, the first end of the other first main section is connected to the outlet end of the first heat exchanger, and the other first end is connected to the outlet end of the first heat exchanger. The second end of the main section is connected to the inlet end of the first auxiliary section and the inlet end of the second pipe section respectively. There is a second water pump on the first pipe, and the second water pump is connected in series to the first main section. In this way, on the one hand, the The second water pump can provide kinetic energy to the coolant in the first pipeline to ensure the stable flow of the coolant in the first pipeline. On the other hand, the first main pipe in the first pipeline can be controlled by adjusting the rotation speed of the second water pump. The mass flow rate of the cooling liquid on the section is controlled, thereby controlling the mass flow rate and temperature of the cooling liquid at the inlet end of the first heat exchanger.

In a feasible implementation, the inlet end of the second water pump is connected to the outlet end of the first pipe section, and the outlet end of the second water pump is connected to the inlet end of the first heat exchanger. On the one hand, the second pipeline can be improved The power of the coolant entering the first pipeline through the first pipe section ensures that part or all of the coolant in the second pipeline can enter the first pipeline well.

In a feasible implementation manner, the thermal management system of the embodiment of the present application further includes a switch valve. In some examples, the first multi-way valve is connected in series on the second pipeline, and the switching valve is connected in series on the first auxiliary section. The switching valve conducts in the first working mode, that is, the first heat exchanger and the second heat exchanger. When both are working (for example, the liquid-cooled device and the temperature-adjusted device are both heated), it can ensure that the first pipeline and the first heat exchanger form a connected first circulation loop, ensuring that the heat entering the first heat exchanger is The coolant can adjust the temperature of the device to be temperature-regulated. The switch valve is turned off in the third working mode. For example, when the liquid cooling device is to be heated or cooled (for example, heating) alone, the switch valve and the interface connecting the second sub-section in the first multi-way valve can be closed. Open the first interface of the first multi-way valve and the interface of the outlet end of the second main section, so that the first heat exchanger, the first main section, the second main section and the second heat exchanger form a third circulation loop, that is, the cooling liquid The coolant enters the temperature control component of the second pipeline through the outlet side pipe section of the first heat exchanger and the second pipe section for heating. The heated coolant then enters the first pipeline through the first pipe section and enters the second pipe section. The inlet end of a heat exchanger is used to increase the temperature of the cooling liquid entering the first heat exchanger, thereby raising the temperature of the liquid-cooled device to a suitable range and avoiding the cooling flowing out through the outlet end of the first heat exchanger. The liquid directly enters the first sub-section, and continues From the first main section, it directly enters the inlet end of the first heat exchanger without passing through the second pipe section and entering the second pipe for heating, which avoids the coolant in the third circulation loop from flowing into the first auxiliary section. A short circuit occurs.

Alternatively, the first multi-way valve is connected in series on the first pipeline, and the switching valve is connected in series on the second auxiliary section of the second pipeline. The switching valve conducts in the first working mode and the second working mode, that is, the first switching valve When both the heat exchanger and the second heat exchanger are working (for example, both the liquid cooling device and the device to be temperature controlled are heated), or when the second heat exchanger is working alone (for example, the structure to be temperature controlled is heated), the second heat exchanger can be ensured. The pipeline and the second heat exchanger form a conductive second circulation loop to ensure that the coolant entering the second heat exchanger can adjust the temperature of the structure to be temperature-regulated. The switch valve is turned off in the third working mode. For example, when the liquid cooling device is to be heated or cooled (for example, heating) alone, the switch valve and the interface connecting the first auxiliary section of the first multi-way valve can be closed. Open the first interface of the first multi-way valve and the interface connected to the outlet end of the first main section, so that the first heat exchanger, the first main section, the second main section and the second heat exchanger form a third circulation loop, that is, cooling The liquid enters the temperature control component of the second pipeline through the outlet side pipe section of the first heat exchanger and the second pipe section for heating, and then enters the first pipe through the second heat exchanger, the first multi-way valve and the first pipe section. path, and enters the inlet end of the first heat exchanger, which increases the temperature of the cooling liquid entering the first heat exchanger, thereby raising the temperature of the liquid-cooled device to an appropriate range and avoiding the need to go through the first heat exchanger. The coolant flowing out of the outlet end of the heat exchanger enters the inlet end of the first heat exchanger through the second auxiliary section and the first pipe section without entering the second main section for heating, which avoids the coolant in the third circulation loop being A short circuit occurred at the second sub-section.

In a feasible implementation manner, the switch valve is a one-way valve or a stop valve, which simplifies the control process of the switch valve and saves the cost of the switch valve. For example, when the switch valve is a one-way valve and is connected in series to the second sub-section, in addition, the first water pump is located on the outlet side of the second sub-section, and the second water pump is located on the outlet side of the first sub-section, the second water pump can be adjusted by The rotation speed of the first water pump and the second water pump is such that in the third working mode, that is, when the liquid cooling device is heated (or cooled) alone, the rotation speed of the second water pump can be adjusted to be greater than the rotation speed of the first water pump, so that the one-way valve inlet The pressure on the first side is less than the pressure on the outlet side, so the one-way valve can be turned off in reverse to prevent the coolant flowing out of the first pipeline from being directly short-circuited at the second sub-section and unable to enter the second pipeline for heating.

In a feasible implementation, the first multi-way valve is a proportional three-way valve. In this way, the openings of the three interfaces of the proportional three-way valve can be adjusted according to actual needs to adjust the flow from the first circulation loop to the second The mass flow rate of the coolant in the circulation loop is to adjust the mixed water ratio in the second circulation loop, thereby accurately controlling the temperature of the coolant entering the first heat exchanger, so that the liquid-cooled device can be adjusted to the target temperature. In addition, by setting the first multi-way valve as a proportional three-way valve, the control process of the first multi-way valve is simplified, and the cost of the first multi-way valve is also saved.

In a feasible implementation, the thermal management system of the embodiment of the present application also includes a second multi-way valve, and the second multi-way valve includes a fourth interface, a fifth interface, a sixth interface, a seventh interface, and an eighth interface. and the ninth interface. Among them, the two second main sections of the second pipeline and the second heat exchanger form a temperature control pipe section. The number of temperature control pipe sections is two. The two temperature control pipe sections include a cooling pipe section and a heating pipe section. The two temperature control pipe sections The two ends of the refrigeration pipe section are connected to the fourth interface and the fifth interface respectively, the two ends of the refrigeration pipe section are connected to the sixth interface and the seventh interface respectively; the two ends of the second sub-section are connected to the eighth interface and the ninth interface respectively. When the fourth interface is connected to the ninth interface and the fifth interface is connected to the eighth interface, both ends of the heating pipe section are connected to both ends of the second sub-section. When the sixth interface is connected to the ninth interface, the seventh interface is connected to the eighth interface, and both ends of the refrigeration pipe section are connected to both ends of the second sub-section, in this way, when the temperature of the structure to be temperature-regulated or the liquid-cooled device is insufficient, , the temperature control pipe section can be switched to the heating pipe section by connecting the corresponding interface in the second multi-way valve, so that the cooling liquid in the second pipeline or the first pipeline can be heated through the heating pipe section. , to increase the temperature of the cooling liquid flowing through the second heat exchanger and the first heat exchanger, thereby raising the structure to be temperature-regulated or the device to be liquid-cooled to the target temperature. When the temperature of the structure to be temperature-regulated or the device to be liquid-cooled is too high, the corresponding interface in the second multi-way valve can be connected to switch the temperature-controlled pipe section to the refrigeration pipe section, so that the temperature control pipe section can be switched to the refrigeration pipe section. The cooling liquid in the second pipeline or the first pipeline is cooled through the refrigeration pipe section to reduce the temperature of the cooling liquid flowing through the second heat exchanger and the first heat exchanger, thereby reducing the temperature of the structure to be tempered or the structure to be temperature controlled. Liquid cooling the device to the target temperature, the entire switching process is simple and reliable.

In a feasible implementation, the second heat exchanger of the heating pipe section is a warm air core, and the temperature control component of the heating pipe section includes at least one of a condensation plate heat exchanger and an electric heating core to improve Coolant heating efficiency.

In a feasible implementation manner, the second heat exchanger of the refrigeration pipe section is a cold air core, and the temperature control component of the refrigeration pipe section includes an evaporation plate heat exchanger to improve the cooling efficiency of the cooling liquid.

In a feasible implementation, the condensing plate heat exchanger in the heating pipe section has a condensing plate heat exchange core, and the evaporation plate heat exchanger in the refrigeration pipe section has an evaporation plate heat exchange core. The inlet end of the condensing plate heat exchange core is connected to the evaporation plate. The outlet end of the plate heat exchange core is connected, and the inlet end of the evaporation plate heat exchange core is connected with the outlet end of the condensation plate heat exchange core. Both the condensation plate heat exchange core and the evaporation plate heat exchange core are used to circulate the refrigerant. In this way, it is achieved The recycling of refrigerant saves the cost of the thermal management system.

In a feasible implementation, the first heat exchanger is a battery pack cold plate, and the battery pack cold plate is in thermal contact with the battery of the battery pack. That is, the thermal management system of the embodiment of the present application can realize temperature control of the battery pack.

Embodiments of the present application also provide a vehicle, including a battery and the above thermal management system. The first heat exchanger of the first pipeline in the thermal management system is in thermal contact with the battery to achieve temperature control of the battery and ensure that the battery is in Within a suitable temperature, in addition, by setting up the above thermal management system in the vehicle, on the one hand, it can balance the cooling capacity and temperature of the structure to be tempered in the vehicle and the battery, improve the working efficiency of the thermal management system, and reduce the power of the vehicle. On the other hand, the control process of the thermal management system is simple and controllable, and the cost is low.

In a feasible implementation, the vehicle of the embodiment of the present application also includes a passenger cabin, and the second heat exchanger in the second pipeline in the thermal management system is located in the passenger cabin. That is to say, the structure to be temperature-regulated can For the passenger compartment, the second heat exchanger in the management system can control the temperature in the passenger compartment to ensure that the temperature in the passenger compartment is within an appropriate range. In addition, the thermal management system of the embodiment of the present application can realize the control of the temperature in the passenger compartment. The balanced distribution of cooling capacity and temperature of the passenger compartment and battery also simplifies the structure and control method of the thermal management system, saving the cost of the thermal management system.

Description of the drawings

Figure 1 is a schematic structural diagram of a thermal management system provided by an embodiment of the present application;

Figure 2 is another structural schematic diagram of a thermal management system provided by an embodiment of the present application;

Figure 3 is a first state schematic diagram of the first working mode of the thermal management system corresponding to Figure 1;

Figure 4 is a schematic diagram of the second state of the first working mode of the thermal management system corresponding to Figure 1;

Figure 5 is a schematic diagram of the second working mode of the thermal management system corresponding to Figure 1;

Figure 6 is a schematic diagram of the third working mode of the thermal management system corresponding to Figure 1;

Figure 7 is a schematic diagram of the first state of the first working mode of the thermal management system corresponding to Figure 2;

Figure 8 is a schematic diagram of the second state of the first working mode of the thermal management system corresponding to Figure 2;

Figure 9 is a schematic diagram of the second working mode of the thermal management system corresponding to Figure 2;

Figure 10 is a schematic diagram of the third working mode of the thermal management system corresponding to Figure 2;

Figure 11 is a schematic diagram of the first state of the thermal management system corresponding to Figure 1 when the first working mode is the heating mode;

Figure 12 is a schematic diagram of the second state of the thermal management system corresponding to Figure 1 when the first working mode is the heating mode;

Figure 13 is a schematic diagram of the second operating mode of the thermal management system corresponding to Figure 1 being the heating mode;

Figure 14 is a schematic diagram of the third working mode of the thermal management system corresponding to Figure 1 being the heating mode;

Figure 15 is a schematic diagram of the first state of the thermal management system corresponding to Figure 1 when the first operating mode is the cooling mode;

Figure 16 is a schematic diagram of the second state of the thermal management system corresponding to Figure 1 when the first operating mode is the cooling mode;

Figure 17 is a schematic diagram of the second operating mode of the thermal management system corresponding to Figure 1 being the cooling mode;

Figure 18 is a schematic diagram of the third operating mode of the thermal management system corresponding to Figure 1 being the cooling mode;

Figure 19 is another structural schematic diagram of a thermal management system provided by an embodiment of the present application.

Explanation of reference symbols:
10-Device to be liquid-cooled; 20-Structure to be adjusted; 30-First heat exchanger; 40-Second heat exchanger;
100-first pipeline; 200-second pipeline; 300-first pipeline section; 400-second pipeline section; 500-first multi-way valve; 600-
On-off valve; 700-second multi-way valve; 800-third pipeline; 900-fourth pipeline; 1000-fifth pipeline;
101-the first circulation loop; 201-the second circulation loop; 301-the third circulation loop; 110a, 110b-the first main section;
120-first auxiliary section; 210a, 210b-second main section; 220-second auxiliary section; 510-first interface; 520-second interface; 530-third interface; 600a-one-way valve; 600b-stop Valve; 710-fourth interface; 720-fifth interface; 730-sixth interface; 740-seventh interface; 750-eighth interface; 760-ninth interface; 770-tenth interface; 780-eleventh interface ; 790-twelfth interface; 810-third water pump; 910-radiator; 1100-powertrain; 1200-fourth water pump;
2011-temperature control pipe section; 201a-heating pipe section; 201b-refrigeration pipe section; 111-second water pump; 211-temperature control component; 212-
first water pump;
40a-warm air core; 211a-condensation plate heat exchanger; 221a-electric heating core; 40b-cold air core; 211b-evaporation plate heat exchanger.

Detailed ways

The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application and are not intended to limit the present application.

Figure 1 is a schematic structural diagram of a thermal management system provided by an embodiment of the present application. Referring to Figure 1, an embodiment of the present application provides a vehicle, including a battery (such as the device 10 to be liquid cooled in Figure 1) and a thermal management system, wherein the first heat exchanger 30 in the thermal management system is connected to the battery thermal Contact enables heat exchange between the battery and the first heat exchanger 30 to control the temperature of the battery within the first target temperature, thereby extending the service life of the battery and ensuring normal use of the battery.

Among them, the first target temperature can be understood as the optimal usage temperature of the battery, that is, the battery has the best working performance at this temperature. In some examples, for example, in winter, the first target temperature of the battery is 0°C to 60°C. For example, in winter, the first target temperature of the battery may be 0°C, 20°C, 30°C, 40°C, or 60℃ and other suitable temperature values. In other examples, for example, in summer, the first target temperature of the battery is 15°C to 20°C. For example, in summer, the first target temperature of the battery may be 15°C, 16°C, 17°C, or 18°C. Or a suitable temperature value such as 20℃.

It should be noted that thermal contact refers to the physical contact where heat exchange can occur between two components. In other words, after the two components come into contact, heat can be transferred to each other through the contact position of the two components. For example, the thermal contact between the first heat exchanger 30 and the battery means that after the first heat exchanger 30 comes into contact with the battery, heat can be transferred to each other through the contact position between the first heat exchanger 30 and the battery, so that the temperature of the battery is adjusted to First target temperature.

In some examples, the first heat exchanger 30 may be a battery pack cold plate. In practice, the battery pack cold plate and battery can be assembled or integrated together and serve as a vehicle battery pack.

The vehicles provided by this embodiment may include but are not limited to electric vehicles/electric vehicles (EV), pure electric vehicles (PEV/BEV), hybrid electric vehicles (HEV), range-extended electric vehicles (REEV), and plug-in hybrid vehicles (PHEV), new energy vehicles (New Energy Vehicle), etc.

Taking electric vehicles as an example, the batteries in the battery pack can provide electrical energy to the electric vehicle's motor, and the motor converts the electrical energy into mechanical energy, thereby providing the electric vehicle with the ability to operate normally.

In order to extend the cruising range of electric vehicles, the energy density per unit mass of the cells in the battery and the battery capacity of each vehicle are also constantly increasing, and the heat dissipation requirements of the batteries in the battery pack are also increasing. In addition, the optimal operating temperature range of batteries is relatively narrow. Therefore, when it comes to battery thermal management, battery heat dissipation technology has evolved from air cooling to liquid cooling, and from natural heat dissipation by low-temperature radiators at the front to heat dissipation by low-temperature coolant in air conditioners. For example, the battery in the battery pack is a device 10 to be liquid-cooled. There may be a channel in the cold plate of the battery pack. The channel is in thermal contact with the battery. The cooling liquid flows into the channel and heat exchanges with the battery through the inner wall of the channel, thereby cooling the battery. The temperature is controlled at the first target temperature.

Among them, the inlet temperature of the coolant is particularly important. It can be understood that the inlet temperature of the cooling liquid refers to the temperature at the inlet end of the cooling liquid entering the battery pack cold plate (ie, the first heat exchanger 30 in the embodiment of the present application). When the inlet temperature of the coolant reaches the second target temperature, the temperature of the battery can be adjusted to the first target temperature through the battery pack cold plate.

For example, in summer, when the battery needs to be cooled, the second target temperature of the coolant can be 15°C to 20°C, so that the coolant at this temperature can reduce the temperature of the battery to 15°C to 20°C. For example, when the first target temperature of the battery is 20°C, the second target temperature of the cooling liquid may be 15°C, 16°C, 18°C, 20°C, or other suitable temperature values.

Similarly, in winter, when the battery needs to be heated, the second target temperature of the coolant can be 0°C to 40°C, so that the coolant at this temperature can increase the temperature of the battery to 0°C to 40°C. For example, when the first target temperature of the battery is 40°C, the second target temperature of the cooling liquid may be 30°C, 35°C, 40°C, or other suitable temperature values.

In practice, in vehicles such as electric vehicles, in addition to the temperature of the battery that needs to be strictly controlled, the temperature of other structures 20 to be temperature-regulated, such as the passenger compartment, also needs to be thermally managed so that the temperature of the passenger compartment is at the third target temperature. It can be understood that the third target temperature refers to the appropriate temperature of the structure 20 to be heated, such as the passenger compartment, so as to ensure the comfort of the passengers in the vehicle. In some examples, for example, in winter, the third target temperature of the passenger compartment is 40°C to 80°C. For example, the third target temperature of the passenger compartment may be 40°C, 50°C, 60°C, 70°C, or 80°C. Wait for the appropriate temperature value. In other examples, for example, in summer, the third target temperature of the passenger cabin is 0°C to 8°C. For example, the third target temperature of the passenger cabin may be 0°C, 3°C, 5°C, 7°C, or 8°C. ℃ and other suitable temperature values.

In order to ensure that the temperature of the passenger compartment is within the third target temperature, in some examples, the thermal management system may include a heat exchange core disposed in the passenger compartment, with refrigerant (eg, refrigerant) contained in the heat exchange core, and the refrigerant flows into the heat exchanger. After heating the core, heat exchange between the refrigerant and the air around the heat exchange core can be achieved through the heat exchange core. The heat-exchanged air can be blown into the space of the passenger compartment by a fan, etc., so that the passenger compartment The temperature inside is controlled at the third target temperature. For example, when cooling the passenger compartment, the cooled refrigerant can be transferred to the heat exchange core, so that the refrigerant can exchange heat with the air around the heat exchange core, thereby reducing the air temperature near the heat exchange core. , and then blow the cooled air to the interior space of the passenger compartment through a fan.

It can be understood that when the inlet temperature of the refrigerant used to adjust the temperature of the passenger compartment reaches the fourth target temperature, the temperature of the passenger compartment can be adjusted to the third target temperature through the heat exchange core. Among them, the inlet temperature of the refrigerant refers to the temperature of the refrigerant at the inlet end of the heat exchange core.

For example, in summer, when the passenger compartment needs to be cooled, the fourth target temperature of the refrigerant may be 0°C to 8°C, so that the coolant at this temperature can reduce the temperature of the battery to 0°C to 8°C. For example, when the third target temperature of the passenger compartment is 8°C, the fourth target temperature of the refrigerant may be suitable temperature values such as 0°C, 3°C, 5°C, 8°C, etc.

Similarly, in winter, the passenger compartment needs to be heated, and the fourth target temperature of the refrigerant can be 40°C to 80°C, so that the temperature The coolant at low temperatures can reduce the temperature of the passenger compartment to 40°C to 80°C. For example, when the third target temperature of the passenger compartment is 40°C, the fourth target temperature of the refrigerant may be a suitable temperature value such as 40°C, 50°C, 60°C, or 80°C.

Currently, in order to achieve simultaneous matching of the temperature and cooling capacity of the structure 20 to be temperature-regulated (such as the passenger compartment) and the device 10 (such as the battery) to be liquid-cooled, the thermal management system needs to achieve the matching of the temperature and cooling capacity of the passenger compartment on the one hand. On the other hand, the temperature and cooling capacity of the battery need to be matched at the same time. In other words, the thermal management system balances the temperature and cooling of the structure 20 to be temperature-regulated (such as the passenger compartment) and the device 10 to be liquid-cooled (such as the battery). The amount requires the introduction of more control units, resulting in a complex management method for the thermal management system.

Taking refrigeration as an example, in some embodiments, the thermal management system includes a battery pack circulation loop, a condenser, an air-cooling humidifier and a battery cooling evaporator (Battery Chiller) connected in parallel at the condenser outlet, where the air-cooling humidifier is located In the passenger compartment, the inlet end of the air cooling humidifier is connected to the outlet end of the condenser through the first valve, and the outlet end of the air cooling humidifier is connected to the inlet end of the condenser.

Wherein, the battery cooling evaporator is connected in series on the battery pack circulation loop, the inlet end of the battery cooling evaporator is connected to the outlet end of the condenser through the second valve, and one of the outlet ends (such as the first outlet end) of the battery cooling evaporator ) is connected to the inlet end of the battery pack, and the other outlet end (for example, the second outlet end) is connected to the condenser.

When cooling the passenger compartment and the battery pack at the same time, the first valve and the second valve can be opened so that part of the refrigerant in the condenser enters the air-cooling humidifier and mixes with the cooling liquid (such as tap water) in the air-cooling humidifier. ) performs heat exchange, lowers the temperature of the tap water, processes the tap water into water mist, and sprays it into the passenger compartment to cool down the air in the passenger compartment. The other part of the refrigerant enters the battery cooling evaporator, and Perform heat exchange with the coolant that enters the battery cooling evaporator in the battery pack circulation loop to lower the temperature of the coolant. The cooled coolant enters the battery pack to take away the heat of the battery pack (such as the battery). Realize the refrigeration treatment of the battery pack.

In addition, by controlling the opening of the first valve and the second valve to ensure that the temperature and cooling capacity of the passenger compartment and the temperature range and cooling capacity of the battery pack are matched at the same time, it is ensured that the temperature of the passenger compartment reaches the third target temperature, and the battery pack The temperature reaches the first target temperature, which is to balance the temperature and cooling capacity of the passenger compartment and battery pack.

However, in the above thermal management system, the fluid flowing through the first valve and the second valve is a high-pressure refrigerant such as refrigerant, so the first valve and the second valve are generally thermal expansion valves or electronic expansion valves, which are relatively expensive. Moreover, the opening control is relatively complicated, which makes the collaborative control process of the first valve and the second valve in the thermal management system more complicated, and increases the complexity of the control method of the thermal management system.

In some other examples, the thermal management system may include a battery pack circulation loop and a passenger compartment circulation loop. The battery pack cold plate of the battery pack is connected in series in the battery pack circulation loop. By controlling the coolant temperature in the battery pack circulation loop, the coolant entering the until the temperature of the coolant in the cold plate of the battery pack reaches the second target temperature, so as to adjust the temperature of the battery to the first target temperature range. The heat exchange core used to adjust the temperature of the passenger compartment is connected in series in the passenger compartment circulation loop. By controlling the temperature of the coolant in the passenger compartment circulation loop, the temperature of the coolant entering the heat exchange core reaches the fourth target temperature, so as to The temperature of the passenger compartment is adjusted to be within the third target temperature range.

Among them, an intermediate heat exchanger can be connected in parallel on the passenger compartment circulation loop through a three-way valve and other adapters. The intermediate heat exchanger includes a first heat exchange channel and a second heat exchange channel, and the first heat exchange channel and the second heat exchange channel are connected in parallel. The heat exchange channels are in thermal contact. The first heat exchange channel is arranged in parallel with the passenger cabin circulation loop. For example, one end (such as the inlet end) of the first heat exchange channel can be connected to the passenger cabin circulation loop through the first interface of the three-way valve, and with the heat exchange core. The outlet end of the three-way valve is connected to the passenger compartment circulation loop through the second interface and the third interface. For example, the second interface of the three-way valve is connected to the outlet end of the heat exchange core, and the third interface of the three-way valve is connected to the outlet end of the heat exchange core. The three interfaces are connected with the inlet end of the heat exchange core. The other end of the first heat exchange channel (such as the outlet end) is connected to The circulation loop of the passenger compartment is connected and connected with the inlet end of the heat exchange core.

The second heat exchange channel of the intermediate heat exchanger is connected in series to the battery pack circulation loop. For example, one end of the second heat exchange channel (such as the inlet end) is connected to the outlet end of the battery pack cold plate, and the other end of the second heat exchange channel (such as the inlet end) is connected to the outlet end of the battery pack cold plate. For example, the outlet end) is connected to the inlet end of the battery pack cold plate.

In practice, when the passenger compartment and battery compartment are cooled, the third target temperature of the passenger compartment is lower than the first target temperature of the battery pack. Correspondingly, the fourth target temperature of the coolant in the passenger compartment circulation loop is lower than that in the battery pack circulation loop. Second target temperature of the coolant.

When the passenger compartment and battery compartment are heated, the third target temperature of the passenger compartment is higher than the first target temperature of the battery pack. Correspondingly, the fourth target temperature of the coolant in the passenger compartment circulation loop is higher than the coolant in the battery pack circulation loop. the second target temperature.

In this way, when the temperature of the coolant in the battery pack circulation loop is too high or too low, the three interfaces of the three-way valve can be opened, so that part of the coolant in the passenger compartment circulation loop enters the first heat exchanger of the intermediate heat exchanger. In the channel, heat is exchanged with the coolant in the second heat exchange channel to adjust the temperature of the coolant in the battery pack circulation loop to make it reach the second target temperature range, thereby ensuring that the battery temperature reaches the first target temperature range. Inside.

For example, when the coolant temperature in the battery pack circulation loop is insufficient, the three interfaces of the three-way valve can be opened, allowing part of the coolant in the passenger compartment circulation loop to enter the first heat exchange channel of the intermediate heat exchanger, and The coolant in the second heat exchange channel performs heat exchange to increase the temperature of the coolant in the battery pack circulation loop so that it reaches the second target temperature range, thereby ensuring that the battery temperature reaches the first target temperature range.

However, there is a heat transfer temperature difference in the intermediate heat exchanger, which results in low heat transfer efficiency and increases the power consumption of the thermal management system.

To this end, embodiments of the present application provide a thermal management system by setting up two pipelines, such as the second pipeline 200 and the first pipeline 100. The second heat exchanger 40 connected in series on the second pipeline 200 uses In order to perform heat exchange with the structure 20 to be temperature-controlled, such as the air in the passenger compartment, that is, to adjust the temperature in the passenger compartment, the first heat exchanger 30 connected in series on the first pipeline 100 is used to exchange heat with the device 10 to be liquid-cooled, such as The battery performs heat exchange, that is, to adjust the temperature of the battery, by passing cooling liquid into the two pipelines, and connecting the two ends of the first heat exchanger 30 of the first pipeline 100 in parallel through the two pipeline sections. The pipeline 200 is coupled with a three-way valve disposed at the inlet end of one pipe section (for example, the first pipe section 300) or the inlet end of another pipe section (for example, the second pipe section 400). In this way, it can be opened in the first working mode. Each interface of the three-way valve allows part of the coolant on the second pipeline 200 to enter the first pipeline 100 through the first pipe section 300 to increase the mass flow rate of the coolant entering the first heat exchanger 30 and The temperature, that is, the temperature of the cooling liquid entering the second heat exchanger 40 is adjusted by mixing water, thereby adjusting the temperature of the device 10 to be liquid-cooled. In addition, the cooling liquid flowing out from the first heat exchanger 30 A part of the coolant can enter the second pipeline 200 through the second pipe section 400, thereby ensuring that the mass flow and temperature of the coolant entering the second heat exchanger 40 will not be affected, ensuring that the structure 20 to be temperature-regulated The temperature is within the target temperature. On the one hand, the cooling capacity and temperature of the structure to be temperature-regulated 20 and the device to be liquid-cooled 10 are matched simultaneously. On the other hand, the entire thermal management system has a simple structure and a simple and controllable method. In addition, adjusting the temperature of the coolant in the first pipeline by mixing water improves the temperature adjustment efficiency of the coolant in the first circulation loop, thereby improving the heat exchange efficiency of the thermal management system and reducing power consumption.

The thermal management system provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , an embodiment of the present application provides a thermal management system, including a first heat exchanger 30 , a second heat exchanger 40 , a first pipeline 100 , a second pipeline 200 , a first pipeline section 300 and a first pipeline section 300 . Second pipe section 400.

Wherein, both ends of the second pipeline 200 are respectively connected with the inlet end and the outlet end of the second heat exchanger 40, that is, the inlet end and the outlet end of the second heat exchanger 40 are connected through the second pipeline 200, so that the The second pipeline 200 and the second heat exchanger 40 are in one of the A circulation loop (such as the second circulation loop 201 to be mentioned below) is formed in one working mode (for example, the first working mode). The second heat exchanger 40 is used for heat exchange with the structure 20 to be tempered, that is, the cooling liquid entering the second heat exchanger 40 carries out heat exchange with the structure 20 to be tempered through the second heat exchanger 40. To adjust the temperature of the structure 20 to be temperature-regulated, so that the structure 20 to be temperature-regulated is within the third target temperature.

Referring to FIG. 1 , the two ends of the first pipeline 100 are respectively connected with the inlet end and the outlet end of the first heat exchanger 30 . In other words, the inlet end and the outlet end of the first heat exchanger 30 pass through the first pipe. The path 100 is connected, so that the first heat exchanger 30 and the first pipeline 100 form another circulation loop (eg the first circulation loop 101 to be mentioned below) in one of the working modes (eg the first working mode). The first heat exchanger 30 is used for heat exchange with the device 10 to be liquid-cooled. For example, the cooling liquid entering the first heat exchanger 30 is exchanged with the device 10 to be liquid-cooled through the first heat exchanger 30. To adjust the temperature of the device 10 to be liquid-cooled, so that the temperature of the device 10 to be liquid-cooled reaches the first target temperature.

Continuing to refer to Figure 1, the inlet end of the first pipe section 300 is connected to the second pipe 200 and is connected in series to the outlet end of the second heat exchanger 40. The outlet end of the first pipe section 300 is connected to the first pipe 100. And connected in series at the inlet end of the first heat exchanger 30 .

The inlet end of the second pipe section 400 is connected to the first pipe 100 and is connected in series to the outlet end of the first heat exchanger 30. The outlet end of the second pipe section 400 is connected to the second pipe 200 and is connected in series to the second heat exchanger. The inlet port of the device 40.

For convenience of description, a part of the pipe section of the second pipeline 200 may be regarded as the second main section, and the other part of the pipe section may be regarded as the second auxiliary section 220 . For example, the second pipeline 200 may include a second main section and a second auxiliary section 220, wherein there are two second main sections, one ends of the two second main sections are respectively connected to the inlet end of the second heat exchanger 40 and the second auxiliary section 220. The outlet ends are connected, and the other ends of the two second main sections are connected with the two ends of the second auxiliary section 220 respectively.

Referring to Figure 1, specifically, the first end of one of the second main sections (for example, the second main section 210a) is connected to the outlet end of the second heat exchanger 40, and the second end of the second main section 210a ( Referring to b1 in Figure 1) are respectively connected with the inlet end of the second auxiliary section 220 and the inlet end of the first pipe section 300. In this way, the first pipe section 300 can be connected to the second heat exchanger 40 through the second main section 210a. The outlet end is connected, so that the outlet end of the second heat exchanger 40 is connected to the second auxiliary section 220 through the second main section 210a.

The first end of another second main section (for example, the second main section 210b) is connected to the inlet end of the second heat exchanger 40, and the second end (refer to a1 in Figure 1) of the second main section 210b are respectively It is connected with the outlet end of the second auxiliary section 220 and the outlet end of the second pipe section 400, so that the outlet end of the second pipe section 400 is connected with the inlet end of the second heat exchanger 40 through the second main section 210b, and the second heat exchanger is also connected. The inlet end of the heater 40 is connected to the second auxiliary section 220 through the second main section 210b.

In some examples, the first end of the second main section 210a is the inlet end of the second main section 210a, and the second end of the second main section 210a is the outlet end of the second main section 210a (refer to b1 in Figure 1 ), the first end of the second main section 210b is the outlet end of the second main section 210b, and the second end of the second main section 210b is the inlet end of the second main section 210b (refer to a1 in Figure 1).

Referring to FIG. 1 , correspondingly, a part of the pipe section of the first pipeline 100 can be used as the first main section, and the other part of the pipe section can be used as the first auxiliary section 120 . For example, the first pipeline 100 may include a first main section and a first auxiliary section 120, wherein there are two first main sections, one ends of the two first main sections are respectively connected to the inlet end of the first heat exchanger 30 and the first auxiliary section 120. The outlet ends are connected, and the other ends of the two first main sections are connected with the two ends of the first auxiliary section 120 respectively.

Continuing to refer to FIG. 1 , specifically, the first end of one of the first main sections (for example, the first main section 110 a ) is connected to the inlet end of the first heat exchanger 30 , and the second end of the first main section 110 a (Refer to a2 in Figure 1) are respectively connected with the outlet end of the first auxiliary section 120 and the outlet end of the first pipe section 300, so that the first pipe section 300 passes through the first main section 110a and the inlet end of the first heat exchanger 30 The communication also makes the inlet end of the first heat exchanger 30 communicate with the outlet end of the first auxiliary section 120 through the first main section 110a.

The first end of another first main section (for example, the first main section 110b) is connected to the outlet end of the first heat exchanger 30, and the second end (refer to b2 in Figure 1) of the first main section 110b is respectively It is connected with the inlet end of the first auxiliary section 120 and the inlet end of the second pipe section 400, so that the inlet end of the second pipe section 400 is connected with the outlet end of the first heat exchanger 30 through the first main section 110b, and also makes the first heat exchanger The outlet end of the heater 30 is connected to the inlet end of the first auxiliary section 120 through the first main section 110b.

In some examples, the first end of the first main section 110a is the outlet end of the first main section 110a, and the second end of the first main section 110a is the inlet end of the first main section 110a (refer to a2 in Figure 1 ), the first end of the first main section 110b is the inlet end of the first main section 110b, and the second end of the first main section 110b is the outlet end of the first main section 110b (refer to b2 in Figure 1).

In this way, the cooling liquid flowing out from the second main section 210a can selectively flow into at least one of the second auxiliary section 220 and the first pipe section 300. Similarly, the cooling liquid flows from the first main section at the outlet end of the first heat exchanger 30. The cooling liquid flowing out of the section 110 (eg, the first main section 110b) can selectively flow into at least one of the first auxiliary section 120 and the second pipe section 400.

It should be noted that the inlet end and outlet end of the embodiment of the present application are only based on the flow direction of the coolant in some working modes as a reference. End openings are named simply to differentiate between two different ports of a pipe segment or other structure. In some examples, the inlet end and the outlet end are only ports of the device or pipeline, and are not used as the outlet and outlet of the coolant. For details, please refer to the details below.

In some examples, the length of the first pipe section 300 may be 1 cm-20 cm to avoid the length of the first pipe section 300 being too short, so that the second end b1 of the second main section 210a, the inlet end of the second auxiliary section 220, the Water mixing occurs at the four ports of the second end a2 of a main section 110a and the outlet end of the first auxiliary section 120, ensuring that the first pipeline 100 and the second pipeline 200 are independent of each other. For example, the length of the second pipe section 400 may be 1 cm, 5 cm, 10 cm, 15 cm or 20 cm or other suitable values.

Similarly, the length of the second pipe section 400 may be 1 cm-20 cm to avoid the second end a1 of the second main section 210b, the outlet end of the second auxiliary section 220, the second end b2 of the first main section 110b and the first Water mixing occurs at the four ports at the inlet end of the sub-section 120, thereby ensuring that the first pipeline 100 and the second pipeline 200 are independent of each other. For example, the length of the second pipe section 400 may be 1 cm, 5 cm, 10 cm, 15 cm or 20 cm or other suitable values.

Continuing to refer to FIG. 1 , the thermal management system of the embodiment of the present application also includes a first multi-way valve 500 . The first multi-way valve 500 includes a first interface 510 , a second interface 520 and a third interface 530 .

Referring to FIG. 1 , in one example (such as the first example), the first multi-way valve 500 can be connected to the inlet end of the second pipe section 400 , for example, the first interface 510 of the first multi-way valve 500 Communicated with the inlet end of the second pipe section 400, the first multi-way valve 500 is connected in series on the first pipeline 100 through the second interface 520 and the third interface 530. For example, the second interface 520 of the first multi-way valve 500 is connected to the third interface 530. The inlet end of the auxiliary section 120 is connected, and the third interface 530 of the first multi-way valve 500 is connected with the outlet end of the first main section 110b (refer to b2 in Figure 1), so that the first multi-way valve 500 is connected in series with the first main section 110b. between the outlet end of a main section 110b and the inlet end of the first auxiliary section 120, so that the three interfaces of the first multi-way valve 500 are respectively connected to the inlet end of the second pipe section 400 and the outlet end of the first main section 110b and the entrance end of the first sub-section 120.

Figure 2 is another structural schematic diagram of a thermal management system provided by an embodiment of the present application. Referring to FIG. 2 , in another example (such as the second example), the first multi-way valve 500 is connected to the inlet end of the first pipe section 300 . For example, the first interface 510 of the first multi-way valve 500 is connected to the inlet end of the first pipe section 300, and the first multi-way valve 500 is connected in series to the second pipeline 200 through the second interface 520 and the third interface 530, for example, The third interface 530 of the first multi-way valve 500 is connected to the outlet end of the second main section 210a (refer to b1 in Figure 2), and the second interface 520 of the first multi-way valve 500 is connected to the inlet of the second auxiliary section 220. end is connected, so that the first multi-way valve 500 is connected in series between the outlet end of the second main section 210a and the inlet end of the second auxiliary section 220, so that the three interfaces of the first multi-way valve 500 are connected to the first pipe section respectively. 300, the outlet end of the second main section 210a and the inlet end of the second auxiliary section 220.

It can be understood that the "pipeline" and "pipe section" in the embodiments of the present application may be simple pipes, or may be a combined structure including pipes, on-off valves, water pumps and other devices. Among them, the pipeline refers to pipe structures such as hoses and steel pipes that are only used to transmit coolant.

For example, the first pipeline 100 and the second pipeline 200 may be simple pipelines, or the first pipeline 100 and the second pipeline 200 may also be a combination including pipelines, switching valves and other devices. For example, the first pipeline 100 and the second pipeline 200 may be hoses for transmitting cooling liquid. Alternatively, the first pipeline 100 and the second pipeline 200 include hoses and water pumps and other devices connected in series on the hoses. The embodiments of this application do not specifically limit the structures of "pipeline" and "pipe section".

In addition, the lengths of the first pipeline 100 and the second pipeline 200 in the embodiment of the present application can be adjusted according to actual needs, and the embodiment of the present application does not limit this.

In the embodiment of the present application, the cooling liquid flowing in the first heat exchanger 30, the second heat exchanger 40, the first pipeline 100 and the second pipeline 200 may be tap water, purified water, cooling oil and other liquids. In addition, , the coolant is in a low-pressure liquid state in any working mode of the embodiment of the present application.

FIG. 3 is a schematic diagram of the first state of the thermal management system corresponding to FIG. 1 in the first working mode. FIG. 4 is a schematic diagram of the second state of the thermal management system corresponding to FIG. 1 in the first working mode. FIG. 5 is a schematic diagram of the thermal management system corresponding to FIG. 1 . A schematic diagram of the second working mode of the management system. FIG. 6 is a schematic diagram of the third working mode of the thermal management system corresponding to FIG. 1 . Referring to FIGS. 3 to 6 , taking the first example as an example, the embodiment of the present application can adjust the openings of the three interfaces of the first multi-way valve 500 so that the thermal management system of the embodiment of the present application is in different states. Operating mode.

Referring to FIGS. 3 and 4 , for example, the first interface 510 , the second interface 520 and the third interface 530 of the first multi-way valve 500 are used to conduct in the first working mode of the thermal management system to connect the first A pipeline 100 and the first heat exchanger 30 form a first circulation loop 101, a second pipeline 200 and the second heat exchanger 40 form a second circulation loop 201, and the coolant in the second circulation loop 201 can be The cooling liquid in the first circulation loop 101 is mixed with the cooling liquid in the first circulation loop 101 through the first pipe section 300, and the cooling liquid in the first circulation loop 101 is mixed with the cooling liquid in the second circulation loop 201 through the second pipe section 400. The first working mode is a mode in which both the first heat exchanger 30 and the second heat exchanger 40 are in working state.

Specifically, referring to FIG. 3 and FIG. 4 , in one of the working modes of the thermal management system (for example, the first working mode), the second heat exchanger 40 and the first heat exchanger 30 work at the same time, that is, when the liquid The temperatures of both the cold device 10 and the structure to be temperature-regulated 20 need to be adjusted to within the target temperature range.

3, in the first state of the first working mode, the first interface 510 of the first multi-way valve 500 can be controlled to be closed, and the second interface 520 and the third interface are connected, that is, the first interface 510 The opening is adjusted to zero, the opening of the second interface 520 and the third interface 530 is adjusted to be greater than zero, the second pipeline 200 and the first pipeline 100 are independent of each other, that is, neither the first pipe section 300 nor the second pipe section 400 participates Work. The first pipeline 100 and the first heat exchanger 30 form a first circulation loop 101. The cooling liquid in the first circulation loop 101 can enter the first heat exchanger 30 and perform heat exchange with the device 10 to be liquid-cooled. To adjust the temperature of the device 10 to be liquid-cooled to the first target temperature. Correspondingly, the second pipeline 200 and the second heat exchanger 40 form a second circulation loop 201. The cooling liquid in the second circulation loop 201 can enter the second heat exchanger 40 and interact with the structure to be temperature-regulated. 20 performs heat exchange to adjust the temperature of the structure 20 to be tempered to the third target temperature.

Referring to FIG. 4 , in the second state of the first working mode, the openings of the three interfaces of the adjustable first multi-way valve 500 are all greater than zero, that is, the three interfaces of the first multi-way valve 500 are all connected. , the coolant located in the second circulation loop 201 can be divided into two paths after flowing out from the second end of the second main section 210a (refer to b1 in Figure 4), one of which (i.e., the third path in the second circulation loop 201) A part of the cooling liquid) flows into the second auxiliary section 220, then flows into the second heat exchanger 40 through the second main section 210b, and then flows into the second main section 210a, so that the first part in the second circulation loop 201 is cooled liquid in the second circulation loop 201 circulation flow. The other part of the cooling liquid (ie, the second part of the second circulation loop 201) flows into the first main section 110a through the first pipe section 300, and is mixed with the cooling liquid in the first circulation loop 101. The mixed cooling liquid flows into The cooling liquid flows into the first heat exchanger 30 and then flows into the first main section 110b. The cooling liquid flowing out from the outlet end of the first main section 110b is divided into two parts through the first interface 510 and the second interface 520 of the first multi-way valve 500. Two channels, one of which (the first part of the cooling liquid of the first circulation loop 101) flows into the first main section 110a through the first auxiliary section 120, so that this part of the cooling liquid circulates in the first circulation loop 101, and the other channel ( The second part of the cooling liquid of the first circulation loop 101 can flow into the second main section 210b through the second pipe section 400, and the cooling liquid from the second auxiliary section 220 to the second main section 210b (i.e., the second circulation loop After the first part of the cooling liquid (201) is mixed, it flows into the second heat exchanger 40, and then flows into the second main section 210a, and the cycle repeats.

In the first working mode, the temperature of the coolant entering the first heat exchanger 30 in the first circulation loop 101 is within the second target temperature range, which ensures that the coolant in the first heat exchanger 30 can The temperature of the liquid cooling device 10 is controlled within the first target temperature range. The temperature of the coolant entering the second heat exchanger 40 in the second circulation loop 201 is within the fourth target temperature range, which ensures that the coolant in the second heat exchanger 40 can control the temperature of the structure 20 to be tempered. within the third target temperature range.

It can be understood that the first working mode of the thermal management system is a mode in which both the first heat exchanger 30 and the second heat exchanger 40 are in a working state. When the coolant temperature in the first circulation loop 101 meets the second target temperature and the coolant temperature in the second circulation loop 201 meets the fourth target temperature, the first state of the first working mode can be executed.

When the coolant temperature in the second circulation loop 201 meets the fourth target temperature and the coolant temperature in the first circulation loop 101 does not meet the second target temperature, the second state of the first working mode can be operated to control the first The coolant in the circulation loop 101 is adjusted so that the temperature of the coolant entering the first heat exchanger 30 reaches the second target temperature range, thereby ensuring that the temperature of the device 10 to be liquid-cooled is within the first target temperature range.

Referring to FIG. 5 , as another working mode (for example, the second working mode), the second heat exchanger 40 works alone, that is, the second heat exchanger 40 is in the working state and the first heat exchanger 30 is in the non-working state. , the opening of the first interface 510 among the three interfaces of the first multi-way valve 500 can be adjusted to zero, and the second interface 520 and the third interface 530 can be adjusted to conduct, that is, the opening is greater than zero, and the second pipeline 200 and the second exchanger can The heat exchanger 40 is formed as a second circulation loop 201, and the cooling liquid flows in the second circulation loop 201, so that the cooling liquid entering the second heat exchanger 40 carries out heat exchange with the structure 20 to be temperature-regulated, so as to adjust the temperature to be adjusted. the temperature of structure 20 to a third target temperature.

It can be understood that the second working mode of the thermal management system is a mode in which the first heat exchanger 30 is in a non-working state and the second heat exchanger 40 is in a working state. For example, the temperature of the structure 20 to be tempered is insufficient or too high. , needs to be controlled within the third target temperature range, and the liquid cooling device 10 is not working, or the temperature of the liquid cooling device 10 is currently within the first target temperature range, and there is no need to adjust the temperature through the thermal management system, then it can operate The second working mode of the thermal management system is to adjust the temperature of the structure 20 to be tempered to ensure that the temperature of the structure 20 to be tempered is within the third target temperature range.

In addition, in the second working mode, the second pipeline 200 and the first pipeline 100 are independent of each other. In some examples, the first pipeline 100 and the first heat exchanger 30 may not have cooling liquid, or may have cooling liquid. liquid. When there is cooling liquid in the first pipeline 100 , the cooling liquid can be stationary or flow in the first pipeline 100 and the first heat exchanger 30 , but does not exchange heat with the device 10 to be liquid-cooled.

It should be noted that in the second working mode, since the coolant does not flow in or out from both ends of the first pipe section 300 and the second pipe section 400, the inlet end and the outlet end of the first pipe section 300 and the second pipe section 400 are only The different ports used to distinguish the first pipe section 300 and the second pipe section 400 do not correspond to the port through which the cooling liquid enters or the port through which the coolant flows out. In the same way, if there is no coolant in the first pipeline 100 and the first heat exchanger 30 or the coolant flows freely in the first pipeline 100 and the first heat exchanger 30, then the The inlet end and outlet end of a pipeline 100 and the first heat exchanger 30 are only used to distinguish different ports of the first pipeline 100 and the first heat exchanger 30 and do not correspond to the port through which the coolant enters or the port through which the coolant flows out.

Referring to FIG. 6 , as another working mode (for example, the third working mode), the first heat exchanger 30 works alone, that is, the first heat exchanger 30 is in the working state and the second heat exchanger 40 is in the non-working state. , the opening of the third interface 530 of the three interfaces of the first multi-way valve 500 can be adjusted to zero, and the first interface 510 and the second interface 520 can be adjusted to conduct, that is, the opening is greater than zero, and the first heat exchanger 30 and two The first main section 110, the second pipe section 400, the second heat exchanger 40, the two second main sections 210 and the first pipe section 300 form a third circulation loop 301, and the cooling liquid can circulate in the third circulation loop 301. For example, the coolant flows out from the second main section 210a and flows into the first main section 110a through the first pipe section 300, then flows through the first heat exchanger 30 and the first main section 110b in sequence, and then flows into the second pipe section 400. to the second main section 210b, and then enters the second main section 210a through the second heat exchanger 40, so that the cooling liquid flows between the second main section 210a, the first pipe section 300, the first main section 110a, and the first exchanger. The heat exchanger 30, the first main section 110b, the second pipe section 400, the second main section 210b and the second heat exchanger 40 form a third circulation loop 301 to circulate.

It can be understood that the third working mode is a mode in which the first heat exchanger 30 is in a working state and the second heat exchanger 40 is in a non-working state. For example, when the temperature of the liquid cooling device 10 is insufficient or too high, it needs to be controlled in the third working mode. Within a target temperature range, but the structure 20 to be temperature-regulated is not working, or the temperature of the structure 20 to be temperature-regulated is currently within the third target temperature range, and there is no need to adjust the temperature through the thermal management system, the thermal management system can be operated. The third working mode is to adjust the temperature of the device 10 to be liquid-cooled to ensure that the temperature of the device 10 to be liquid-cooled is within the first target temperature range.

It should be noted that in the third working mode, since the first sub-section 120 and the second sub-section 220 do not participate in the work, for example, there is no inflow and outflow of coolant in the first sub-section 120 and the second sub-section 220, then the first sub-section 120 and the second sub-section 220 do not participate in the work. The inlet end and outlet end of the sub-section 120 and the second sub-section 220 are only used to distinguish different ports of the first sub-section 120 and the second sub-section 220, and do not correspond to the port through which the cooling liquid enters or the port through which the coolant flows out.

Among them, in the third working mode, the second heat exchanger 40 can be regarded as a pipeline.

Figure 7 is a schematic diagram of the first state of the thermal management system corresponding to Figure 2 in the first operating mode. Figure 8 is a schematic diagram of the second state of the thermal management system corresponding to Figure 2 in the first operating mode. Figure 9 is a schematic diagram of the thermal management system corresponding to Figure 2. A schematic diagram of the second working mode of the management system. Figure 10 is a schematic diagram of the third working mode of the thermal management system corresponding to Figure 2. Referring to FIGS. 7 to 10 , taking the second example as an example, the thermal management system of the embodiment of the present application can be placed in different working modes by adjusting the openings of the three interfaces of the first multi-way valve 500 .

Referring to FIGS. 7 and 8 , for example, the first interface 510 , the second interface 520 and the third interface 530 of the first multi-way valve 500 are used to conduct in the first working mode of the thermal management system to connect the first A pipeline 100 and the first heat exchanger 30 form a first circulation loop 101, a second pipeline 200 and the second heat exchanger 40 form a second circulation loop 201, and the coolant in the second circulation loop 201 can be The cooling liquid in the first circulation loop 101 is mixed with the cooling liquid in the first circulation loop 101 through the first pipe section 300, and the cooling liquid in the first circulation loop 101 is mixed with the cooling liquid in the second circulation loop 201 through the second pipe section 400. The first working mode is a mode in which both the first heat exchanger 30 and the second heat exchanger 40 are in working state.

Specifically, as shown in FIGS. 7 and 8 , in one of the working modes of the thermal management system (for example, the first working mode), the second heat exchanger 40 and the first heat exchanger 30 work at the same time, that is, the second heat exchanger 40 and the first heat exchanger 30 work simultaneously. The temperatures of both the cold device 10 and the structure to be temperature-regulated 20 need to be adjusted to within the target temperature range.

7 , in the first state of the first working mode, the first interface 510 of the first multi-way valve 500 can be controlled to be closed, and the second interface 520 and the third interface are connected, that is, the first interface 510 The opening is adjusted to zero, the opening of the second interface 520 and the third interface 530 is adjusted to be greater than zero, the second pipeline 200 and the first pipeline 100 are independent of each other, that is, the first pipeline section 300 Neither the second pipe section 400 nor the second pipe section 400 participate in the work. The first pipeline 100 and the first heat exchanger 30 form a first circulation loop 101. The cooling liquid in the first circulation loop 101 can enter the first heat exchanger 30 and perform heat exchange with the device 10 to be liquid-cooled. To adjust the temperature of the device 10 to be liquid-cooled to the first target temperature. Correspondingly, the second pipeline 200 and the second heat exchanger 40 form a second circulation loop 201. The cooling liquid in the second circulation loop 201 can enter the second heat exchanger 40 and interact with the structure to be temperature-regulated. 20 performs heat exchange to adjust the temperature of the structure 20 to be tempered to the third target temperature.

Referring to FIG. 8 , in the second state of the first working mode, the openings of the three interfaces in the adjustable first multi-way valve 500 are all greater than zero, and the coolant in the second circulation loop 201 flows from the second main After flowing out from the outlet end of section 210a (refer to b1 in Figure 8), it can be divided into two paths through the first interface 510 and the second interface 520 of the first multi-way valve 500, one of which (i.e., the outlet in the second circulation loop 201 The first part of the cooling liquid) flows into the second auxiliary section 220, then flows into the second heat exchanger 40 through the second main section 210b, and then flows into the second main section 210a, so that the first part of the second circulation loop 201 The coolant circulates in the second circulation circuit 201 . The other part of the cooling liquid (ie, the second part of the second circulation loop 201) flows into the first main section 110a through the first pipe section 300, and is mixed with the cooling liquid in the first circulation loop 101. The mixed cooling liquid flows into in the first heat exchanger 30 and then flows into the first main section 110b. The cooling liquid flowing out from the outlet end of the first main section 110b (refer to b2 in Figure 8) can be divided into two paths, one of which (the first The first part of the cooling liquid of the circulation loop 101 flows into the first main section 110a through the first auxiliary section 120, so that this part of the cooling liquid circulates in the first circulation loop 101, and the other section (the second part of the first circulation loop 101 part of the cooling liquid) flows into the second main section 210b through the second pipe section 400, and is mixed with the cooling liquid (ie, the first part of the cooling liquid of the second circulation loop 201) flowing into the second main section 210b from the second auxiliary section 220 Then, it flows into the second heat exchanger 40, and then flows into the second main section 210a, and the cycle repeats.

Referring to FIG. 9 , as another working mode (for example, the second working mode), the second heat exchanger 40 works alone, that is, the second heat exchanger 40 is in the working state and the first heat exchanger 30 is in the non-working state. , the opening of the first interface 510 among the three interfaces of the first multi-way valve 500 can be adjusted to zero, and the second interface 520 and the third interface 530 can be adjusted to conduct, that is, the opening is greater than zero, and the second pipeline 200 and the second exchanger can The heat exchanger 40 is formed as a second circulation loop 201, and the cooling liquid flows in the second circulation loop 201, so that the cooling liquid entering the second heat exchanger 40 carries out heat exchange with the structure 20 to be temperature-regulated, so as to adjust the temperature to be adjusted. the temperature of structure 20 to a third target temperature.

Wherein, in the second working mode of the second example, the status of the first pipeline 100, the first heat exchanger 30, the first pipe section 300 and the second pipe section 400 can be directly referred to the first working mode of the first example. mode will not be described in detail here.

Referring to FIG. 10 , as another working mode (for example, the third working mode), the first heat exchanger 30 works alone, that is, the first heat exchanger 30 is in the working state and the second heat exchanger 40 is in the non-working state. , the opening of the second interface 520 of the three interfaces of the first multi-way valve 500 can be adjusted to zero, and the first interface 510 and the third interface 530 can be adjusted to conduct, that is, the opening is greater than zero, and the first heat exchanger 30 and two The first main section 110, the second pipe section 400, the second heat exchanger 40, the two second main sections 210 and the first pipe section 300 form a third circulation loop 301, and the cooling liquid can circulate in the third circulation loop 301. For example, the coolant flows out from the second main section 210a and flows into the first main section 110a through the first pipe section 300, then flows through the first heat exchanger 30 and the first main section 110b in sequence, and then flows into the second pipe section 400. to the second main section 210b, and then enters the second main section 210a through the second heat exchanger 40, so that the cooling liquid flows between the second main section 210a, the first pipe section 300, the first main section 110a, and the first exchanger. The heat exchanger 30, the first main section 110b, the second pipe section 400, the second main section 210b and the second heat exchanger 40 form a third circulation loop 301 to circulate.

It can be understood that the third working mode is a mode in which the first heat exchanger 30 is in a working state and the second heat exchanger 40 is in a non-working state. Among them, in the third working mode, the second heat exchanger 40 can be regarded as a pipeline.

Among them, in the third working mode of the second example, the status of the first sub-section 120 and the second sub-section 220 can be directly referred to According to the first working mode of the above-mentioned first example, no further details will be given here.

It should be noted that in the embodiment of the present application, when the second heat exchanger 40 and the first heat exchanger 30 are heating at the same time, that is, when both the liquid cooling device 10 and the structure to be temperature-regulated 20 are heating, the second heat exchanger The target inlet temperature of the heater 40 (i.e., the fourth target temperature) is greater than the target inlet temperature of the first heat exchanger 30 (i.e., the second target temperature). That is to say, the structure 20 to be temperature-regulated and the device 10 to be liquid-cooled are simultaneously During heating, the third target temperature of the structure 20 to be temperature-regulated is greater than the first target temperature of the device 10 to be liquid-cooled. In this way, when the structure 20 to be temperature-regulated and the device 10 to be liquid-cooled are heated simultaneously, the second circulation loop 201 The temperature of the coolant in the first circulation loop 101 is greater than the temperature of the coolant in the first circulation loop 101. When the temperature of the coolant at the inlet end of the first heat exchanger 30 is insufficient, the first working mode of the thermal management system can be adopted. For example, the first working mode can be moved. In the second state of the working mode, by adjusting the openings of the three interfaces of the first multi-way valve 500 to be greater than zero, for example, the first interface 510, the second interface 520 and the third interface 530 of the proportional three-way valve can be connected. , so that part of the high-temperature cooling liquid in the second circulation loop 201 can flow into the first circulation loop 101 to increase the temperature of the cooling liquid in the first circulation loop 101, so that the temperature of the cooling liquid at the inlet end of the first heat exchanger 30 When the second target temperature is reached, it is ensured that the temperature of the device 10 to be liquid-cooled is at the first target temperature.

When the second heat exchanger 40 and the first heat exchanger 30 are cooling at the same time, that is, when the liquid cooling device 10 and the temperature-controlled structure 20 are both cooled, the target inlet temperature of the second heat exchanger 40 (ie, the fourth target temperature ) is less than the target inlet temperature of the first heat exchanger 30 (i.e., the second target temperature), that is to say, when the structure to be temperature-regulated 20 and the liquid-cooling device 10 are cooled simultaneously, the third target temperature of the structure to be temperature-regulated 20 is less than the first target temperature of the device 10 to be liquid-cooled. In this way, when the structure 20 to be temperature-regulated and the device 10 to be liquid-cooled are simultaneously cooled, the temperature of the cooling liquid in the second circulation loop 201 is lower than the cooling liquid in the first circulation loop 101 When the temperature of the coolant at the inlet end of the first heat exchanger 30 is too high, the first working mode of the thermal management system can be adopted, for example, the second state of the first working mode can be moved, that is, by adjusting the first multiple The openings of the three interfaces of the three-way valve 500 are all greater than zero. For example, the first interface 510, the second interface 520 and the third interface 530 of the proportional three-way valve can be connected, so that the low-temperature coolant in the second circulation loop 201 A part of the cooling liquid can flow into the first circulation loop 101 to reduce the temperature of the cooling liquid in the first circulation loop 101, so that the temperature of the cooling liquid at the inlet end of the first heat exchanger 30 is reduced to the second target temperature, ensuring that the device to be liquid cooled A temperature of 10 is at the first target temperature.

Wherein, the fourth target temperature is a third temperature that can adjust the temperature of the structure 20 to be temperature-regulated to the third target temperature after the cooling liquid entering the second heat exchanger 40 performs heat exchange with the structure 20 to be temperature-regulated. The temperature at the inlet end of the second heat exchanger 40. In addition, the second target temperature is a first temperature that can adjust the temperature of the device 10 to be liquid-cooled to the first target temperature after the cooling liquid entering the first heat exchanger 30 performs heat exchange with the device 10 to be liquid-cooled. Temperature at the inlet end of heat exchanger 30.

Referring to Figures 1 and 2, in some examples, a temperature control component 211 can be connected in series in the second pipeline 200, and the temperature control component 211 can be connected in series on the second main section. For example, the temperature control component 211 can be connected in series. On the second main section 210b, one end of the temperature control component 211 is connected to the second end of the second main section 210b (refer to a1 in Figure 1), and the other end of the temperature control component 211 is connected to the second heat exchanger 40 The inlet end is connected, so that the temperature of the coolant in the second main section 210b can be adjusted through the temperature control component 211 to ensure that the temperature of the coolant entering the second heat exchanger 40 can be controlled within the fourth target temperature, Thereby, the structure 20 to be temperature-regulated is adjusted to the third target temperature.

Taking the first example as an example, as shown in Figures 3 and 4, when both the structure to be temperature-regulated 20 and the device to be liquid-cooled 10 need to be heated, the first working mode of the thermal management system can be adopted, which can be achieved by controlling the first The temperature and mass flow rate of the coolant in the second circulation loop 201 are used to control the temperature of the coolant entering the inlet end of the second heat exchanger 40 to reach the fourth target temperature, so that the coolant at this temperature is in the second heat exchanger 40 Heat exchange can be performed with the structure 20 to be tempered to heat the structure 20 to be tempered.

Referring to FIG. 4 , when the coolant temperature at the inlet end of the first heat exchanger 30 is insufficient, the second circulation loop 201 can be controlled by adjusting the openings of the three interfaces of the first multi-way valve 500 , such as a proportional three-way valve. and the first circulation loop 101 The mass flow rate m2 of the exchanged coolant (i.e., the reference mass flow rate m2) realizes the function of adjusting the mixing ratio, that is, controlling the proportion of m2 in the mass flow rate m3 of the coolant in the first circulation loop 101 to improve the first cycle The temperature of the coolant in the loop 101 can adjust the temperature entering the inlet end of the first heat exchanger 30 to reach the second target temperature.

Specifically, when the thermal management system receives the work requirement: the fourth target temperature at the inlet end of the second heat exchanger 40 is T1 and the mass flow rate is m1, and the second target temperature at the inlet end of the first heat exchanger 30 is T2 and the mass flow rate is When m3, the target mass flow rate of the coolant in the second circulation loop 201 when it enters the second heat exchanger 40 can be controlled to be m1, and the target mass flow rate of the coolant in the first circulation loop 101 when it enters the first heat exchanger 30 can be controlled. The target mass flow rate is m3.

Referring to FIGS. 3 and 4 , when the temperature Tn < T1 at the inlet end of the second heat exchanger 40 , the cooling liquid in the second pipeline 200 can be heated by the temperature control component 211 , so that the second heat exchanger 40 The temperature Tn at the inlet end reaches the fourth target temperature T1, that is, Tn=T1.

Referring to Figure 3, when the temperature Tb=T2 at the inlet end of the first heat exchanger 30, the first interface 510 of the first multi-way valve 500 can be controlled to be closed, and the second interface 520 and the third interface 530 are both connected, that is, The thermal management system is in the first state of the first working mode. The coolant in the first circulation loop 101 and the second circulation loop 102 circulates in the respective circulation loops, that is, the coolant in the first circulation loop 101 enters the first state. After reaching the first heat exchanger 30 , the temperature of the device 10 to be liquid-cooled can be controlled within the first target temperature range through the first heat exchanger 30 .

Referring to FIG. 4 , when the temperature Tb < T2 at the inlet end of the first heat exchanger 30 , all three interfaces of the first multi-way valve 500 are connected, that is, the thermal management system is in the second state of the first working mode. Part of the coolant in the second circulation loop 201 (for example, the coolant with a mass flow rate of m2) can flow into the first main section 110a of the first circulation loop 101 through the first pipe section 300, and mix with the coolant in the first circulation loop 101. Mixing is carried out. After the mixed coolant (mass flow rate is m3) enters the first heat exchanger 30, it can exchange heat with the liquid cooling device 10 and pass through the first multi-way valve at the outlet end of the first main section 110b. The first interface 510 and the second interface 520 of 500 are divided into two channels. One channel of cooling liquid (mass flow rate is m3-m2) can flow into the first main section 110a through the first auxiliary section 120, and the other channel of cooling liquid (mass flow rate is m3-m2) can circulate into the first main section 110a. The mass flow rate is m2) can flow into the second main section 210b through the second pipe section 400, and be mixed with the coolant flowing out of the second auxiliary section 220. The mixed coolant can continue to be heated by the temperature control component 211 and then flow into In the second heat exchanger 40, heat exchange is performed with the structure 20 to be temperature-regulated.

Since the coolant entering the first heat exchanger 30 includes a high-temperature coolant with a mass flow rate m2 and a low-temperature coolant with a mass flow rate m1, compared with the first circulation loop 101 in the first state, The coolant in the first heat exchanger 30 increases the proportion of the reference mass flow rate m2 in the mass flow rate m3, thereby causing the temperature Tb to rise and reach the final second target temperature T2, causing the entry into the first heat exchanger. The cooling liquid in the device 30 can adjust the temperature of the device 10 to be liquid-cooled to within the first target temperature range.

In addition, through the opening of the first interface 510 and the second interface 520 of the first multi-way valve 500, the mass flow rate of the coolant flowing into the first auxiliary section 120 is controlled to be m3-m2, thereby ensuring that it enters the first main section 120. The mass flow rate of the low-temperature coolant in the section 110a is m3-m2, so that when the high-temperature coolant with the mass flow rate m2 in the second circulation loop 201 flows into the first main section 110a, it can ensure that it enters the first heat exchanger 30. The mass flow rate of the coolant is m3. At the same time, it can be ensured that the mass flow rate of the cooling liquid entering from the first main section 110b to the second main section 210b is m2, so that this part of the cooling liquid is mixed with the high-temperature cooling liquid flowing out of the second secondary section 220 with a mass flow rate m1-m2. Afterwards, it is ensured that the mass flow rate of the coolant entering the second heat exchanger 40 is m1, that is, it is ensured that the mass flow rate of the coolant entering the second heat exchanger 40 is m1.

In addition, after the coolant flowing from the second pipe section 400 to the second main section 210b and the coolant flowing from the second auxiliary section 220 to the second main section 210b are mixed, they can be heated by the temperature control assembly 211 so that they enter the The coolant temperature Tn in the second heat exchanger 40 reaches T1, thereby ensuring that the temperature of the structure 20 to be tempered is within the third target temperature range.

Among them, the opening of the three interfaces of the first multi-way valve 500 can be adjusted to control the mass flow rate m2 of the coolant flowing from the second circulation loop 201 to the first circulation loop 101, and to control the mass flow rate m2 of the coolant from the first circulation loop 101. The mass flow rate m2 of the coolant flowing into the second circulation loop 201.

In some examples, the specific value of m2 can be adjusted according to the difference between Tb and T2. For example, when the difference between Tb and T2 is large, the first value of m2 in the first multi-way valve 500 can be increased. The opening of the interface 510 decreases the opening of the second interface 520 to increase the specific value of m2, thereby increasing the proportion of the reference mass flow m2 in the mass flow m3 and increasing the flow into the first heat exchanger 30 The temperature of the coolant in the first heat exchanger 30 also improves the temperature adjustment efficiency of the coolant entering the first heat exchanger 30, ensuring that the coolant entering the first heat exchanger 30 quickly reduces the temperature of the device 10 to be liquid-cooled. Adjust to within the first target temperature range.

Referring to Figures 3 and 4, when both the structure to be temperature-regulated 20 and the device to be liquid-cooled 10 need to be cooled, the first working mode of the thermal management system can be used to control the temperature of the coolant in the second circulation loop 201. and mass flow rate to control the temperature of the cooling liquid entering the inlet end of the second heat exchanger 40 to reach the fourth target temperature, so that the cooling liquid at this temperature can heat the structure 20 to be tempered in the second heat exchanger 40 exchange to cool down the structure 20 to be tempered.

Referring to FIG. 4 , when the coolant temperature at the inlet end of the first heat exchanger 30 is too high, the second circulation loop can be controlled by adjusting the openings of the three interfaces of the first multi-way valve 500 , such as a proportional three-way valve. The mass flow rate m2 of the coolant exchanged between 201 and the first circulation loop 101 (i.e., the reference mass flow rate m2) realizes the function of adjusting the mixing ratio, that is, controlling the mass flow rate m3 of the coolant in the first circulation loop 101 m2 In order to reduce the temperature of the coolant in the first circulation loop 101, the temperature entering the inlet end of the first heat exchanger 30 can be adjusted to reach the second target temperature.

Referring to Figures 3 and 4, in addition, when the temperature Tn>T1 at the inlet end of the second heat exchanger 40, the cooling liquid in the second pipeline 200 can be cooled through the temperature control assembly 211, so that the second heat exchanger The temperature Tn at the inlet end of the device 40 is reduced to the fourth target temperature T1, that is, Tn=T1.

Referring to FIG. 4 , when the temperature Tb > T2 at the inlet end of the first heat exchanger 30 , all three interfaces of the first multi-way valve 500 are connected, that is, the thermal management system is in the second state of the first working mode. Part of the coolant in the second circulation loop 201 (for example, the coolant with a mass flow rate of m2) can flow into the first main section 110a of the first circulation loop 101 through the first pipe section 300, and mix with the coolant in the first circulation loop 101. Mixing is carried out. After the mixed coolant (mass flow rate is m3) enters the first heat exchanger 30, it can exchange heat with the liquid cooling device 10 and pass through the first multi-way valve at the outlet end of the first main section 110b. The first interface 510 and the second interface 520 of 500 are divided into two channels. One channel of cooling liquid (mass flow rate is m3-m2) can flow into the first main section 110a through the first auxiliary section 120, and the other channel of cooling liquid (mass flow rate is m3-m2) can circulate into the first main section 110a. The mass flow rate is m2) can flow into the second main section 210b through the second pipe section 400, and be mixed with the coolant flowing out of the second auxiliary section 220. The mixed coolant can continue to be cooled by the temperature control component 211 and then flow into In the second heat exchanger 40, heat exchange is performed with the structure 20 to be temperature-regulated.

Since the coolant entering the first heat exchanger 30 includes a low-temperature coolant with a mass flow rate of m2 and a high-temperature coolant with a mass flow rate of m1, the cooling liquid entering the first circulation loop 101 in the first state is The coolant in the first heat exchanger 30 increases the proportion of the reference mass flow rate m2 in the mass flow rate m3, thereby reducing the temperature Tb and reaching the final second target temperature T2, so that it enters the first heat exchanger. The cooling liquid in the device 30 can adjust the temperature of the device 10 to be liquid-cooled to within the first target temperature range.

In addition, through the opening of the first interface 510 and the second interface 520 of the first multi-way valve 500, the mass flow rate of the coolant flowing into the first auxiliary section 120 is controlled to be m3-m2, thereby ensuring that it enters the first main section 120. The mass flow rate of the low-temperature coolant in the section 110a is m3-m2, so that when the high-temperature coolant with the mass flow rate m2 in the second circulation loop 201 flows into the first main section 110a, it can ensure that it enters the first heat exchanger 30. The mass flow rate of the coolant is m3. At the same time, it is ensured that the mass flow rate of the coolant entering the second main section 210b is m2, so that after this part of the coolant is mixed with the high-temperature coolant flowing out of the second secondary section 220, the mass flow rate is m1-m2. When m1 of cooling liquid enters the second heat exchanger 40 , it is ensured that the mass flow rate of the cooling liquid entering the second heat exchanger 40 is m1 .

In addition, after the coolant flowing from the second pipe section 400 to the second main section 210b and the coolant flowing from the second auxiliary section 220 to the second main section 210b are mixed, under the cooling effect of the temperature control assembly 211, the cooling liquid can enter the When the coolant temperature Tn in the second heat exchanger 40 reaches T1, it is ensured that the temperature of the structure 20 to be tempered is within the third target temperature range.

In some examples, the specific value of m2 can be adjusted according to the difference between Tb and T2. For example, when the difference between Tb and T2 is large, the first value of m2 in the first multi-way valve 500 can be increased. The opening of the interface 510 decreases the opening of the second interface 520 to increase the specific value of m2, thereby increasing the proportion of the reference mass flow m2 in the mass flow m3 and reducing the flow rate into the first heat exchanger 30 The temperature of the coolant in the first heat exchanger 30 also improves the temperature adjustment efficiency of the coolant entering the first heat exchanger 30, ensuring that the coolant entering the first heat exchanger 30 quickly reduces the temperature of the device 10 to be liquid-cooled. Adjust to within the first target temperature range.

Taking the second example as an example, as shown in Figures 7 and 8, when both the structure to be temperature-regulated 20 and the device to be liquid-cooled 10 need to be heated, the first working mode of the thermal management system can be used to control the second The temperature and mass flow rate of the coolant in the second circulation loop 201 are used to control the temperature of the coolant entering the inlet end of the second heat exchanger 40 to reach the fourth target temperature, so that the coolant at this temperature is in the second heat exchanger 40 Heat exchange can be performed with the structure 20 to be tempered to heat the structure 20 to be tempered.

Referring to FIG. 7 , when the coolant temperature at the inlet end of the first heat exchanger 30 is insufficient, the second circulation loop 201 can be controlled by adjusting the openings of the three interfaces of the first multi-way valve 500 , such as a proportional three-way valve. The mass flow rate m2 of the coolant exchanged with the first circulation loop 101 (i.e., the reference mass flow rate m2) realizes the function of adjusting the mixing ratio, that is, controlling the mass flow rate m3 of the coolant in the first circulation loop 101. In order to increase the temperature of the coolant in the first circulation loop 101, the temperature entering the inlet end of the first heat exchanger 30 can be adjusted to reach the second target temperature.

Referring to Figures 7 and 8, in addition, when the temperature Tn<T1 at the inlet end of the second heat exchanger 40, the cooling liquid in the second pipeline 200 can be heated by the temperature control assembly 211, so that the second heat exchanger The temperature Tn at the inlet end of the device 40 reaches the fourth target Temperature T1, that is, Tn=T1.

Referring to Figure 7, when the temperature Tb=T2 at the inlet end of the first heat exchanger 30, the first interface 510 of the first multi-way valve 500 can be controlled to be closed, and the second interface 520 and the third interface 530 are both connected, that is, The thermal management system is in the first state of the first working mode. The coolant in the first circulation loop 101 and the second circulation loop 102 circulates in the respective circulation loops, that is, the coolant in the first circulation loop 101 enters the first state. After reaching the first heat exchanger 30 , the temperature of the device 10 to be liquid-cooled can be controlled within the first target temperature range through the first heat exchanger 30 .

Referring to FIG. 8 , when the temperature Tb < T2 at the inlet end of the first heat exchanger 30 , all three interfaces of the first multi-way valve 500 are connected, that is, the thermal management system is in the second state of the first working mode. Part of the coolant in the second circulation loop 201 (for example, the coolant with a mass flow rate of m2) can flow into the first circulation loop 101 through the third interface 530 and the first interface 510 of the first multi-way valve 500 and the first pipe section 300. In the first main section 110a, it is mixed with the coolant in the first circulation loop 101. After the mixed coolant (mass flow rate is m3) enters the first heat exchanger 30, it can enter with the liquid-cooled device 10. After heat exchange, it is divided into two paths through the outlet end of the first main section 110b. One of the cooling liquids (mass flow rate is m3-m2) can flow into the first main section 110a through the first auxiliary section 120, and the other cooling liquid The liquid (mass flow rate is m2) can flow into the second main section 210b through the second pipe section 400, and be mixed with the cooling liquid flowing out of the second auxiliary section 220. The mixed cooling liquid can continue to be heated by the temperature control component 211 It flows into the second heat exchanger 40 and performs heat exchange with the structure 20 to be temperature-regulated.

In addition, through the opening of the first interface 510 and the second interface 520 of the first multi-way valve 500, the mass flow rate of the coolant flowing into the first auxiliary section 120 is controlled to be m3-m2, thereby ensuring that it enters the first main section 120. The mass flow rate of the low-temperature coolant in the section 110a is m3-m2, so that when the high-temperature coolant with the mass flow rate m2 in the second circulation loop 201 flows into the first main section 110a, it can ensure that it enters the first heat exchanger 30. The mass flow rate of the coolant is m3. At the same time, it is ensured that the mass flow rate of the coolant entering the second main section 210b is m2, so that after this part of the coolant is mixed with the high-temperature coolant flowing out of the second secondary section 220, the mass flow rate is m1-m2. When m1 of coolant enters the second heat exchanger 40, it is ensured that the mass flow rate of the coolant entering the second heat exchanger 40 is m1.

Referring to Figures 7 and 8, when both the structure to be temperature-regulated 20 and the device to be liquid-cooled 10 need to be cooled, the first working mode of the thermal management system can be used to control the temperature of the coolant in the second circulation loop 201. and mass flow rate to control the temperature of the cooling liquid entering the inlet end of the second heat exchanger 40 to reach the fourth target temperature, so that the cooling liquid at this temperature can heat the structure 20 to be tempered in the second heat exchanger 40 exchange to cool down the structure 20 to be tempered.

Referring to FIG. 7 , when the coolant temperature at the inlet end of the first heat exchanger 30 is too high, the second circulation loop can be controlled by adjusting the openings of the three interfaces of the first multi-way valve 500 , such as a proportional three-way valve. The mass flow rate m2 of the coolant exchanged between 201 and the first circulation loop 101 (i.e., the reference mass flow rate m2) realizes the function of adjusting the mixing ratio, that is, controlling the mass flow rate m3 of the coolant in the first circulation loop 101 m2 In order to reduce the temperature of the coolant in the first circulation loop 101, the temperature entering the inlet end of the first heat exchanger 30 can be adjusted to reach the second target temperature.

Referring to Figures 7 and 8, in addition, when the temperature Tn>T1 at the inlet end of the second heat exchanger 40, the cooling liquid in the second pipeline 200 can be cooled through the temperature control assembly 211, so that the second heat exchanger can The temperature Tn at the inlet end of the device 40 is reduced to the fourth target temperature T1, that is, Tn=T1.

Referring to FIG. 8 , when the temperature Tb > T2 at the inlet end of the first heat exchanger 30 , all three interfaces of the first multi-way valve 500 are connected, that is, the thermal management system is in the second state of the first working mode. Part of the coolant in the second circulation loop 201 (for example, the coolant with a mass flow rate of m2) can flow into the first circulation loop 101 through the third interface 530 and the first interface 510 of the first multi-way valve 500 and the first pipe section 300. In the first main section 110a, it is mixed with the coolant in the first circulation loop 101. After the mixed coolant (mass flow rate is m3) enters the first heat exchanger 30, it can enter with the liquid-cooled device 10. After heat exchange, it is divided into two paths through the outlet end of the first main section 110b. One of the cooling liquids (mass flow rate is m3-m2) can flow into the first main section 110a through the first auxiliary section 120, and the other cooling liquid The liquid (mass flow rate is m2) can flow into the second main section 210b through the second pipe section 400, and be mixed with the cooling liquid flowing out of the second auxiliary section 220. The mixed cooling liquid can continue to be cooled by the temperature control component 211. It flows into the second heat exchanger 40 and performs heat exchange with the structure 20 to be temperature-regulated.

In addition, through the opening of the second interface 520 and the third interface 530 of the first multi-way valve 500, the mass flow rate of the coolant flowing into the first auxiliary section 120 is controlled to be m3-m2, thereby ensuring that the cooling liquid flows into the first main section 120. The mass flow rate of the low-temperature coolant in the section 110a is m3-m2, so that when the high-temperature coolant with the mass flow rate m2 in the second circulation loop 201 flows into the first main section 110a, it can ensure that it enters the first heat exchanger 30. The mass flow rate of the coolant is m3. At the same time, it can ensure that you enter the second main section The mass flow rate of the coolant in 210b is m2, so that after this part of the coolant is mixed with the high-temperature coolant with a mass flow rate of m1-m2 flowing out of the second auxiliary section 220, it can be ensured that the coolant with a mass flow rate of m1 enters the second exchanger. In the heat exchanger 40 , that is, it is ensured that the mass flow rate of the cooling liquid entering the second heat exchanger 40 is m1.

Referring to FIGS. 5 and 9 , when the structure 20 to be temperature-regulated is heated or cooled alone, the second working mode of the thermal management system can be used, that is, the first interface 510 of the first multi-way valve 500 is controlled to close, and the second The interface 520 and the third interface 530 are connected, so that the cooling liquid in the second pipeline 200 circulates independently in the second pipeline 200 and the second heat exchanger 40, that is, the second pipeline 200 and the second heat exchanger The second circulation loop 201 formed by the device 40, and the cooling liquid circulates in the second circulation loop 201, and the temperature of the cooling liquid in the second circulation loop 201 is continuously controlled by the temperature control component 211 to ensure that the second circulation loop 201 is The mass flow rate and temperature of the cooling liquid at the inlet end of the heat exchanger 40 meet the target requirements, so that when the cooling liquid enters the second heat exchanger 40, heat exchange can occur with the structure 20 to be temperature-regulated, so that the temperature of the structure 20 to be temperature-regulated Control within the third target range.

Referring to Figure 5, taking the first example as an example, when the thermal management system receives the system demand: the fourth target temperature at the inlet end of the second heat exchanger 40 is T1 and the mass flow rate is m1, the thermal management system can be used The second working mode is to control the first interface 510 of the first multi-way valve 500 to close, and the second interface 520 and the third interface 530 to conduct, so that the coolant in the second pipeline 200 circulates in the second circulation loop 201 Independent circulation flow ensures that the mass flow rate of the cooling liquid at the inlet end of the second heat exchanger 40 reaches m1.

When the inlet end temperature of the second heat exchanger 40 is Tn<T1, the cooling liquid in the second pipeline 200 can be heated by the temperature control component 211 so that Tn=T1, so that when the cooling liquid enters the second heat exchanger In the device 40, heat exchange can occur with the structure 20 to be tempered, so that the temperature of the structure 20 to be tempered is controlled within the third target temperature range.

When the temperature of the inlet end of the second heat exchanger 40 is Tn>T1, the temperature of the cooling liquid in the second pipeline 200 can be cooled through the temperature control component 211 so that Tn=T1, so that the cooling liquid enters the second heat exchanger. In the device 40, heat exchange can occur with the structure 20 to be temperature-regulated, so that the temperature of the structure 20 to be temperature-regulated is controlled within the third target range.

Referring to Figures 6 and 10, when the liquid cooling device 10 is to be heated or cooled alone, the third working mode of the thermal management system can be used, that is, the first interface 510 and the third interface of the first multi-way valve 500 are controlled. 530 is turned on, and the second interface 520 is closed, so that the cooling liquid flows in the second main section 210a, the first pipe section 300, the first main section 110a, the first heat exchanger 30, the first main section 110b, the second pipe section 400, and the The flow circulates in the third circulation loop 301 formed by the two main sections 210b and the second heat exchanger 40. The temperature of the coolant can be controlled through the temperature control component 211 on the second main section 210b so that it enters the first heat exchanger. The coolant temperature at the inlet end of 30 can reach the second target temperature, so that when the coolant enters the first heat exchanger 30, it can be cooled with the liquid to be cooled. The device 10 undergoes heat exchange, so that the temperature of the device 10 to be liquid-cooled is controlled within the first target temperature range.

Referring to Figure 6, taking the first example as an example, when the thermal management system receives the system demand: the fourth target temperature at the inlet end of the first heat exchanger 30 is T2 and the mass flow rate is m3, the thermal management system can be used. The third working mode is to control the first interface 510 and the third interface 530 of the first multi-way valve 500 to be connected and the second interface 520 to be closed, so that the coolant flows between the second main section 210a, the first pipe section 300, and the first main section. Circulation flows in the third circulation loop 301 formed by the section 110a, the first heat exchanger 30, the first main section 110b, the second pipe section 400, the second main section 210b and the second heat exchanger 40 to ensure that the first heat exchanger 30 The mass flow rate of the coolant at the inlet end reaches m3.

When the inlet end temperature of the first heat exchanger 30 is Tb<T2, the cooling liquid in the third circulation loop 301 can be heated by the temperature control component 211 so that Tb=T2, so that the cooling liquid enters the first heat exchanger. In the device 30, heat exchange can occur with the device 10 to be liquid-cooled, so that the temperature of the device 10 to be liquid-cooled is controlled within the first target temperature range.

When the inlet temperature of the second heat exchanger 40 is Tb>T2, the temperature control component 211 can be used to cool the cooling liquid in the third circulation loop 301 so that Tb=T2, so that the cooling liquid enters the first heat exchanger. In the device 30, heat exchange can occur with the device 10 to be liquid-cooled, so that the temperature of the device 10 to be liquid-cooled is controlled within the first target temperature range.

In the embodiment of the present application, the first multi-way valve 500 may be a proportional three-way valve to simplify the control process of the first multi-way valve 500 and also save the cost of the first multi-way valve 500 . In addition, by setting the first multi-way valve 500 as a proportional three-way valve, the openings of the three interfaces of the proportional three-way valve can be adjusted according to actual needs to regulate the flow from the first circulation loop 101 to the second circulation loop 201 The mass flow rate of the coolant is to adjust the mixing ratio of the water in the second circulation loop 201 to accurately control the temperature of the coolant entering the first heat exchanger 30 so that the liquid cooling device 10 is adjusted to the target temperature.

Of course, in other examples, the first multi-way valve 500 may also be a proportional multi-way valve with at least three interfaces, such as a four-way valve or a five-way valve.

Figure 11 is a schematic diagram of the first state of the thermal management system corresponding to Figure 1 when the first operating mode is the heating mode. Figure 12 is a schematic diagram of the second state of the thermal management system corresponding to Figure 1 when the first operating mode is the heating mode. FIG. 13 is a schematic diagram of the second working mode of the thermal management system corresponding to FIG. 1 being the heating mode. FIG. 14 is a schematic diagram of the third working mode of the thermal management system corresponding to FIG. 1 being the heating mode. Referring to FIGS. 11 to 14 , taking the first example as an example, when the working mode of the thermal management system is the heating mode, that is, the thermal management system treats the liquid-cooled device 10 (such as a battery) or the structure 20 to be temperature-regulated (such as a battery). When heating the passenger compartment), the second heat exchanger 40 may be a warm air core 40a, and the temperature control component 211 may include but is not limited to a condensation plate heat exchanger 211a (referred to as a condensation plate exchanger in the figure) and an electric heating core 221a. At least one of them is used to improve the heating efficiency of the coolant.

For example, the temperature control assembly 211 may include a condensing plate heat exchanger 211a and an electric heating core 221a, wherein the electric heating core 221a is located between the outlet end of the condensing plate heat exchanger 211a and the inlet end of the warm air core 40a, In this way, the cooling liquid will first flow into the condensing plate heat exchanger 211a. The refrigerant in the condensing plate heat exchanger 211a will emit heat during the condensation process and transfer it to the cooling liquid to heat the cooling liquid, so that the cooling liquid The temperature rises, and the heated coolant continues to flow into the electric heating core 221a, and the coolant continues to be heated by the electric heating core 221a, so that the temperature of the coolant when it reaches the inlet end of the second heat exchanger 40 can reach the fourth Within the target temperature, on the one hand, it is ensured that the coolant entering the second heat exchanger 40 can raise the temperature in the structure 20 to be tempered to the third target temperature; on the other hand, the coolant is prevented from reaching the condensation plate The temperature in the heat exchanger 211a is too high and affects the heat exchange efficiency.

In some examples, the condensation plate heat exchanger 211a may include a condensation plate heat exchange core and a condensation plate channel. The condensation plate channel may surround the periphery of the condensation plate heat exchange core, where the condensation plate heat exchange core is used to circulate refrigerant ( Such as refrigerant), the condensation plate channel is used to circulate cooling liquid such as water, so that the heat released when the refrigerant condenses can pass through the side wall of the condensation plate heat exchange core It is transferred to the coolant in the condensation plate channel to increase the temperature of the coolant. When installed, the condensation plate channels of the condensation plate heat exchanger 211a are connected in series to the second pipeline 200. For example, the inlet end of the warm air core 40a is connected to the outlet end of the condensation plate channel, and the inlet end of the condensation plate channel can be connected to the second pipeline 200. The second end of the second main section 210b is connected.

For the working principles of the condensation plate heat exchanger 211a and the electric heating core 221a in the embodiment of the present application, reference can be made to the contents of the prior art and will not be described again here.

The following takes the structure 20 to be temperature-regulated as the passenger compartment, the device 10 to be liquid-cooled as the battery, and the first heat exchanger 30 as the battery pack cold plate as an example to describe the three working modes of the thermal management system.

Referring to FIG. 11 , when the passenger compartment and the batteries in the battery pack need to be heated at the same time, such as in winter, the first working mode of the thermal management system can be operated to control the temperature and quality of the coolant in the first circulation loop 101 flow to control the temperature of the coolant entering the inlet end of the heater core 40a to reach the fourth target temperature, so that the coolant at this temperature can exchange heat with the air in the passenger compartment in the heater core 40a to improve The temperature in the passenger compartment is such that the temperature in the passenger compartment reaches the third target temperature.

In addition, when the coolant temperature at the inlet end of the battery pack cold plate is insufficient, the opening of the three interfaces of the first multi-way valve 500 can be adjusted to control the cooling exchanged between the second pipeline 200 and the first pipeline 100 The mass flow rate m2 of the cooling liquid (i.e., the reference mass flow rate m2) is used to adjust the mixing ratio, that is, to control the proportion of m2 in the mass flow rate m3 of the cooling liquid in the first pipeline 100, so as to improve the The temperature of the coolant can be adjusted to reach the second target temperature at the inlet end of the cold plate of the battery pack.

Specifically, when the thermal management system receives the system requirements: the fourth target temperature at the inlet end of the warm air core 40a is T1 and the mass flow rate is m1, and the second target temperature at the inlet end of the cold plate of the battery pack is T2 and the mass flow rate is m3, The coolant in the first circulation loop 101 and the second circulation loop 201 can be controlled to circulate in the respective circulation loops to achieve the target mass flow rate of the warm air core 40a as m1 and the target mass flow rate of the battery pack cold plate as m3. .

Referring to Figure 11, when the temperature Tn<T1 at the inlet end of the warm air core 40a, the cooling liquid in the second pipeline 200 can be heated through the electric heating core 221a or the condensation plate heat exchanger 211a, so that the warm air core The temperature Tn at the inlet end of the body 40a reaches the fourth target temperature T1, that is, Tn=T1.

Referring to Figure 11, when the temperature Tb=T2 at the inlet end of the cold plate of the battery pack, the first interface 510 of the first multi-way valve 500 can be controlled to be closed, and the second interface 520 and the third interface 530 are both turned on, that is, thermal management The system is in the first state of the first working mode, and the coolant in the first circulation loop 101 and the second circulation loop 102 circulates in the respective circulation loops, that is, the coolant in the first circulation loop 101 enters the battery. After the battery is packed with a cold plate, the temperature of the battery can be controlled within the first target temperature range through the battery pack cold plate.

Referring to Figure 12, when the temperature Tb < T2 at the inlet end of the cold plate of the battery pack, all three interfaces of the first multi-way valve 500 are connected to increase the proportion of the reference mass flow m2 in the mass flow m3, thereby The temperature Tb is increased to reach the final second target temperature T2.

Referring to Figure 13, when the passenger compartment is heated separately, the second working mode of the thermal management system can be used, that is, the first interface 510 of the first multi-way valve 500 is controlled to close, and the second interface 520 and the third interface 530 are conducted. The cooling liquid in the second circulation loop 201 circulates independently in the second circulation loop 201, and the temperature of the cooling liquid is continuously controlled through the condensation plate heat exchanger 211a or the electric heating core 221a to ensure that the warm air core The mass flow rate and temperature of the coolant at the inlet end of the body 40a meet the target requirements, so that when the coolant enters the warm air core 40a, heat exchange can occur with the passenger compartment, so that the temperature of the passenger compartment is controlled within the third target temperature range.

Referring to Figure 13, specifically, when the thermal management system receives the system requirement: the fourth target of the inlet end of the warm air core 40a When the standard temperature is T1 and the mass flow rate is m1, the second working mode of the thermal management system can be adopted, that is, the first interface 510 of the first multi-way valve 500 is controlled to be closed, and the second interface 520 and the third interface 530 are connected, so that The coolant in the second pipeline 200 circulates independently in the second pipeline 200 to ensure that the mass flow rate of the coolant at the inlet end of the warm air core 40a reaches m1.

When the inlet end temperature of the warm air core 40a is Tn<T1, the cooling liquid in the second pipeline 200 can be heated through the condensation plate heat exchanger 211a, etc., so that Tn=T1, so that when the cooling liquid enters the warm air In the core 40a, heat exchange can occur with the passenger compartment, so that the temperature of the passenger compartment is controlled within the third target temperature range.

Referring to Figure 14, when the battery is heating alone, the third working mode of the thermal management system can be used, that is, the first interface 510 and the third interface 530 of the first multi-way valve 500 are controlled to be connected, and the second interface 520 is closed. , so that the cooling liquid circulates in the second main section 210a, the first pipe section 300, the first main section 110a, the first heat exchanger 30, the first main section 110b, the second pipe section 400, the second main section 210b and the warm air core The cooling liquid circulates in the third circulation loop 301 formed by 40a, and the coolant temperature is controlled through the condensation plate heat exchanger 211a or the electric heating core 221a of the second main section 210b, so that the temperature of the coolant entering the inlet end of the battery pack cold plate can be The second target temperature is reached, so that when the coolant enters the cold plate of the battery pack, heat exchange can occur with the battery, so that the temperature of the battery is controlled within the first target range.

Referring to Figure 14, specifically, when the thermal management system receives the system requirements: the second target temperature at the inlet end of the battery pack cold plate is T2 and the mass flow rate is m3, the third working mode of the thermal management system can be used, that is, control The first interface 510 and the third interface 530 of the first multi-way valve 500 are connected, and the second interface 520 is closed, so that the coolant flows between the second main section 210a, the first pipe section 300, the first main section 110a, and the first heat exchanger. The flow circulates in the third circulation loop 301 formed by the device 30, the first main section 110b, the second pipe section 400, the second main section 210b and the warm air core 40a to ensure that the mass flow rate of the cooling liquid at the inlet end of the cold plate of the battery pack reaches m3 .

When the temperature of the inlet end of the battery pack cold plate is Tb < T2, the cooling liquid in the above-mentioned circulation loop can be heated through the condensation plate heat exchanger 211a, etc., so that Tb = T2, so that the cooling liquid enters the battery pack cold plate. , can conduct heat exchange with the battery, so that the temperature of the battery is controlled within the first target range.

It should be noted that in the third working mode, the heater core 40a only serves as a pipe, that is, the heater core 40a does not realize heat exchange between the coolant and the passenger compartment.

In some examples, when heating the passenger compartment, the target temperature of the coolant at the inlet end of the warm air core 40a (ie, the fourth target temperature T1) is 40°C-80°C, which can be heated through the condensation plate heat exchanger 211a or electric heating. The core 221a heats the coolant in the second circulation loop 201, such as the second pipeline 200, to provide the warm air core 40a with a coolant temperature of 40°C-80°C to ensure that the temperature of the passenger compartment reaches a temperature between 40°C and 80°C. Third target temperature.

When the battery is heated, the target temperature of the coolant at the inlet end of the cold plate of the battery pack (i.e., the second target temperature T2) is 0°C to 40°C. For example, the first working mode of the thermal management system can be used to pass through the second circulation loop 201 Part of the coolant is mixed with the coolant in the first circulation loop 101 to increase the temperature of the coolant in the first circulation loop 101, or the third working mode of the thermal management system is used to pass the condensation plate heat exchanger 211a or an electric The heating core 221a heats the coolant in the third circulation loop 301 to increase the temperature of the coolant in the third circulation loop 301, thereby providing the battery pack cold plate with a coolant temperature of 0°C to 40°C to ensure that the battery temperature reaches 0°C. The third target temperature is between ~40℃.

In winter, when the passenger compartment and the battery are heated at the same time, the third target temperature of the passenger compartment is greater than the first target temperature of the battery. For example, if the third target temperature of the passenger compartment is 60°C ~ 80°C, and the first target temperature of the battery is 20°C ~ 40°C, when the passenger compartment and the battery in the battery pack are heated at the same time, the coolant in the heater core will The fourth target temperature at the inlet end of 40a is 60°C ~ 80°C, and the second target temperature of the coolant at the inlet end of the battery cold plate is 20°C ~ 40°C. Then the temperature of the coolant in the second circulation loop 201 is greater than that in the first circulation loop 101 In this way, when the temperature of the coolant at the inlet end of the battery cold plate is insufficient, The first working mode of the thermal management system can be adopted, that is, by adjusting the openings of the three interfaces of the first multi-way valve 500 to be greater than zero, part of the high-temperature coolant in the second circulation loop 201 can flow into the first circulation. In the loop 101, the temperature of the coolant in the first circulation loop 101 is increased so that the temperature of the coolant at the inlet end of the battery cold plate reaches the second target temperature to ensure that the temperature of the battery is within the first target range.

Figure 15 is a schematic diagram of the first state of the thermal management system corresponding to Figure 1 when the first operating mode is the cooling mode. Figure 16 is a schematic diagram of the second state of the thermal management system corresponding to Figure 1 when the first operating mode is the cooling mode. Figure 17 It is a schematic diagram of the second working mode of the thermal management system corresponding to Figure 1 which is the cooling mode. Figure 18 is a schematic diagram of the third working mode of the thermal management system corresponding to Figure 1 which is the cooling mode. Referring to FIGS. 15 to 18 , continuing to take the first example as an example, when the working mode of the thermal management system is the cooling mode, that is, the thermal management system treats the liquid cooling device 10 (such as a battery) or the structure 20 to be temperature-regulated (such as a battery). When cooling down the passenger compartment), the second heat exchanger 40 can be a cold air core 40b, and the temperature control assembly 211 can include but is not limited to an evaporator plate heat exchanger 211b (referred to as an evaporator plate exchanger in the figure), etc., to improve the cooling of the coolant. cooling efficiency.

For example, the evaporation plate heat exchanger 211b can be connected in series between the second end of the second main section 210b and the inlet end of the second heat exchanger 40 (cold air core 40b), so that the cooling liquid flows into the evaporation plate exchanger. In the heat exchanger 211b, the refrigerant in the evaporation plate heat exchanger 211b will absorb heat during the evaporation process, that is, absorb the heat of the cooling liquid, causing the temperature of the cooling liquid to decrease, so that the cooled liquid reaches the inlet end of the cold air core 40b When the temperature can reach the fourth target temperature, it can be ensured that the coolant entering the cold air core 40b can raise the temperature in the structure 20 (such as the passenger compartment) to be adjusted to the third target temperature.

In some examples, the evaporation plate heat exchanger 211b may include an evaporation plate heat exchange core and an evaporation plate channel. The evaporation plate channel may surround the outer circumference of the evaporation plate heat exchange core, where the evaporation plate heat exchange core is used to circulate refrigerant, The evaporator plate channels are used to circulate coolant such as water. In this way, when the refrigerant evaporates, it can absorb the heat of the coolant in the evaporator plate channels through the side walls of the evaporator plate heat exchange core to reduce the temperature of the coolant. When set, the evaporation plate channels of the evaporation plate heat exchanger 211b are connected in series to the second pipeline 200. For example, the inlet end of the cold air core 40b is connected to the outlet end of the evaporation plate channel, and the inlet end of the evaporation plate channel can be connected to the second pipeline 200. The second end of the main section 210b is connected. For the working principle of the evaporation plate heat exchanger 211b in the embodiment of the present application, reference can be made to the relevant content of the prior art and will not be described again here.

In summer, for example, when the passenger compartment and battery are cooled, the third target temperature of the passenger compartment is lower than the first target temperature of the battery body. For example, if the third target temperature of the passenger compartment is 0°C to 8°C, and the first target temperature of the battery is 15°C to 20°C, when the batteries in the passenger compartment and the battery pack are cooled at the same time, the coolant will be cooled at the inlet of the cold air core 40b The fourth target temperature of the coolant at the inlet end of the cold plate of the battery pack is 0°C ~ 8°C, and the second target temperature of the coolant at the inlet end of the battery pack cold plate is 15°C ~ 20°C, then the temperature of the coolant in the second circulation loop 201 is lower than that in the first circulation loop 101 In this way, when the temperature of the coolant at the inlet end of the cold plate of the battery pack is too high, the first working mode of the thermal management system can be adopted, that is, by adjusting the openings of the three interfaces of the first multi-way valve 500 to equalize is greater than zero, so that part of the low-temperature cooling liquid in the second circulation loop 201 can flow into the first circulation loop 101 to reduce the temperature of the cooling liquid in the first circulation loop 101, so that the temperature of the cooling liquid at the inlet end of the battery pack cold plate Reach the second target temperature and ensure that the battery temperature is within the first target range.

Referring to Figure 15, specifically, in summer, the batteries in the passenger compartment and the battery pack need to be refrigerated. The first working mode of the thermal management system can be used to control the temperature and temperature of the coolant in the second circulation loop 201. The mass flow rate is used to control the temperature of the coolant entering the inlet end of the cold air core 40b to reach the fourth target temperature, so that the coolant at this temperature can exchange heat with the air in the passenger compartment in the cold air core 40b to reduce the risk of the occupants. The temperature in the cabin makes the temperature in the passenger compartment reach the third target temperature.

When the temperature of the coolant at the inlet end of the cold plate of the battery pack is too high, the opening of the three interfaces of the first multi-way valve 500 can be adjusted to control the coolant exchanged between the second circulation loop 201 and the first circulation loop 101 The mass flow rate m2 (i.e., the reference mass flow rate m2) realizes the function of adjusting the mixing ratio, that is, controlling the proportion of m2 in the mass flow rate m3 of the coolant in the first circulation loop 101, so as to reduce the cooling rate in the first circulation loop 101 The temperature of the liquid can be adjusted to reach the second target temperature at the inlet end of the cold plate of the battery pack.

Specifically, when the thermal management system receives the system requirements: the fourth target temperature at the inlet end of the cold air core 40b is T1 and the mass flow rate is m1, and the second target temperature at the inlet end of the cold plate of the battery pack is T2 and the mass flow rate is m3, it can The cooling liquid in the second circulation loop 201 and the first circulation loop 101 is controlled to circulate in the respective circulation loops to achieve the target mass flow rate of the cold air core 40b as m1 and the target mass flow rate of the battery pack cold plate as m3.

Referring to Figure 15, when the temperature Tn at the inlet end of the cold air core 40b is > T1, the cooling liquid in the second circulation loop 201 can be cooled down through the evaporation plate heat exchanger 211b, so that the temperature Tn at the inlet end of the cold air core 40b is reduced. to the fourth target temperature T1, that is, Tn=T1.

Referring to Figure 15, when the temperature Tb=T2 at the inlet end of the cold plate of the battery pack, the first interface 510 of the first multi-way valve 500 can be controlled to be closed, and the second interface 520 and the third interface 530 are both turned on, that is, thermal management The system is in the first state of the first working mode, and the coolant in the first circulation loop 101 and the second circulation loop 102 circulates in the respective circulation loops, that is, the coolant in the first circulation loop 101 enters the battery. After the battery is packed with a cold plate, the temperature of the battery can be controlled within the first target temperature range through the battery pack cold plate.

Referring to Figure 16, when the temperature Tb>T2 at the inlet end of the cold plate of the battery pack, all three interfaces of the first multi-way valve 500 are connected to increase the mass flow of the first interface 510 and decrease the mass flow of the second interface 520. to reduce the mass flow rate of the second interface 520 to increase the proportion of the reference mass flow rate m2 in the mass flow rate m3, thereby reducing the temperature Tb to the final second target temperature T2.

Referring to Figure 17, when the passenger compartment is cooled alone, the second working mode of the thermal management system can be used, that is, the first interface 510 of the first multi-way valve 500 is controlled to be closed, and the second interface 520 and the third interface 530 are connected. , so that the cooling liquid in the second circulation loop 201 circulates independently in the second circulation loop 201, and the temperature of the cooling liquid is continuously controlled through the evaporation plate heat exchanger 211b to ensure the quality of the cooling liquid at the inlet end of the cold air core 40b The flow rate and temperature reach the target requirements, so that when the coolant enters the cold air core 40b, heat exchange can occur with the passenger compartment, so that the temperature of the passenger compartment is controlled within the third target range.

Specifically, when the thermal management system receives the system demand: the fourth target temperature at the inlet end of the cold air core 40b is T1 and the mass flow rate is m1, the second working mode of the thermal management system can be adopted, that is, the first multi-way valve 500 is controlled. The first interface 510 is closed, and the second interface 520 and the third interface 530 are connected, so that the cooling liquid in the second circulation loop 201 circulates independently in the second circulation loop 201 to ensure that the cooling liquid at the inlet end of the cold air core 40b The mass flow rate reaches m1.

When the inlet end temperature of the cold air core 40b is Tn>T1, the cooling liquid in the second pipeline 200 can be heated by the evaporation plate heat exchanger 211b so that Tn=T1, so that the cooling liquid enters the cold air core 40b. Within, heat exchange can occur with the passenger compartment, so that the temperature of the passenger compartment is controlled within the third target range.

Referring to Figure 18, when the batteries in the battery pack are refrigerated alone, the third working mode of the thermal management system can be used, that is, the first interface 510 and the third interface 530 of the first multi-way valve 500 are controlled to be connected, and the second The interface 520 is closed, so that the cooling liquid flows between the second main section 210a, the first pipe section 300, the first main section 110a, the first heat exchanger 30, the first main section 110b, the second pipe section 400, the second main section 210b and the cold air. The coolant temperature is controlled by the evaporation plate heat exchanger 211b on the second main section 210b, so that the coolant temperature entering the inlet end of the battery pack cold plate is The temperature can reach the second target temperature, so that when the coolant enters the cold plate of the battery pack, heat exchange can occur with the battery, so that the temperature of the battery is controlled within the first target range.

Referring to Figure 18, specifically, when the thermal management system receives the system requirements: the second target temperature at the inlet end of the battery pack cold plate is T2 and the mass flow rate is m3, the third working mode of the thermal management system can be adopted, that is, control The first interface 510 and the third interface 530 of the first multi-way valve 500 are connected, and the second interface 520 is closed, so that the coolant flows between the second main section 210a, the first pipe section 300, the first main section 110a, and the first heat exchanger. The cooling liquid circulates in the third circulation loop 301 formed by the device 30, the first main section 110b, the second pipe section 400, the second main section 210b and the cold air core 40b to ensure that the mass flow rate of the cooling liquid at the inlet end of the battery pack cold plate reaches m3.

When the temperature of the inlet end of the battery pack cold plate is Tb>T2, the coolant in the above-mentioned circulation loop can be cooled through the evaporation plate heat exchanger 211b so that Tb=T2, so that when the coolant enters the battery pack cold plate, Heat exchange can occur with the battery, so that the temperature of the battery is controlled within the first target range.

It should be noted that in the third working mode, the cold air core 40b only serves as a pipe, that is, the cold air core 40b does not realize heat exchange between the coolant and the passenger compartment.

In the embodiment of the present application, the second pipeline 200 and the first pipeline 100 are provided in the thermal management system, and the first pipeline 100 is connected in parallel to the second pipeline 200 through the first pipeline section 300 and the second pipeline section 400. In addition, The first multi-way valve 500 is provided on the inlet end of the first pipe section 300 and the second pipeline 200, or the first multi-way valve 500 is provided on the inlet end of the second pipe section 400 and the first pipeline 100. In this way, By opening and adjusting the opening of each interface in the first multi-way valve 500, the second pipeline 200 and the first pipeline 100 in the thermal management system can be operated simultaneously. When the second pipeline 200 and the first pipeline 100 are heated simultaneously (that is, when the liquid-cooled device 10 to be treated and the structure 20 to be temperature-regulated are heated simultaneously), and the temperature of the coolant in the second pipeline 200 is higher than that of the first pipeline 200 When the temperature of the coolant in the pipeline 100 increases, the openings of the first interface 510 , the second interface 520 and the third interface 530 of the first multi-way valve 500 can be opened and adjusted so that part of the coolant in the second pipeline 200 It enters the first pipeline 100 through the first pipe section 300 to increase the mass flow rate and temperature of the cooling liquid in the first pipeline 100, thereby increasing the temperature of the inlet end of the first heat exchanger 30, so that the first heat exchanger 30 will After the liquid cooling device 10 (such as a battery) cools down to a suitable range, in addition, part of the cooling liquid passing through the first heat exchanger 30 can enter the second pipeline 200 through the second pipe section 400 to ensure that the second pipeline The mass flow rate and temperature entering the second heat exchanger 40 in 200 are within the appropriate range, so that the second heat exchanger 40 adjusts the temperature of the structure 20 to be tempered (such as the passenger compartment) to within the appropriate range, thereby It has the effect of balancing the cooling capacity and temperature of the device 10 to be liquid-cooled and the structure 20 to be temperature-regulated.

In addition, the thermal management system of the embodiment of the present application has a simple structure, a simple and convenient control method, and low cost.

By arranging a temperature control component 211 in the second pipeline 200, the temperature of the coolant in the second pipeline 200 can be adjusted through the temperature control component 211 to ensure that the temperature at the inlet end of the second heat exchanger 40 reaches an appropriate range. , in this way, when the liquid-cooled device 10 and the structure 20 to be temperature-regulated work at the same time (for example, heating), that is, when the first heat exchanger 30 and the second heat exchanger 40 of the thermal management system work at the same time, for example, heating, the first After the temperature of the coolant in the second circulation loop 201 is raised to the target temperature through the temperature control component 211, the openings of the three interfaces of the first multi-way valve 500 are adjusted to be greater than zero, so that the cooling fluid in the second circulation loop 201 is Part of the coolant enters the first circulation loop 101 to increase the temperature and mass flow rate of the coolant entering the first heat exchanger 30 in the first circulation loop 101 so that the temperature at the inlet end of the first heat exchanger 30 reaches the target temperature. .

In addition, when the liquid cooling device 10 is to work alone (for example, heating), the opening of the three interfaces of the first multi-way valve 500 can be adjusted, for example, the opening of the first interface 510 and the third interface 530 can be adjusted. The openings of are all greater than zero, and the opening of the second interface 520 is equal to zero, so that the coolant flowing out from the outlet end of the first heat exchanger 30 can enter the temperature control component 211 in the second main section 210b through the second pipe section 400, After the temperature control component 211 heats the coolant, it can flow out from the outlet end of the temperature control component 211. And enters the first main section 110a of the first pipeline 100 through the second main section 210a and the first pipe section 300, and finally enters the first heat exchanger 30, so that the high temperature entering the first heat exchanger 30 is cooled. The liquid exchanges heat with the device 10 (such as a battery) to be liquid-cooled.

Referring to FIG. 18 , in some examples, the second pipeline 200 has a first water pump 212 , and the outlet end of the first water pump 212 can be connected with the inlet end of the temperature control assembly 211 , that is, the outlet end of the first water pump 212 The end is connected with the inlet end of the second heat exchanger 40 . For example, the first water pump 212 can be connected in series to the second auxiliary section 220, the second main section 210a or the second main section 210b.

By arranging the first water pump 212 on the second pipeline 200, the mass flow rate of the coolant on the second main section 210 can be adjusted by adjusting the rotation speed of the first water pump 212, thereby accurately controlling the cooling liquid entering the second heat exchanger 40. The mass flow rate of the coolant ensures that the coolant at the inlet end of the second heat exchanger 40 is within the fourth target temperature, and ensures that the temperature of the structure 20 to be tempered reaches the third target temperature.

In some embodiments, the first water pump 212 can be connected in series between the outlet end of the second pipe section 400 and the temperature control assembly 211. For example, the inlet end of the first water pump 212 is connected with the outlet end of the second pipe section 400. The first water pump The outlet end of 212 is connected to the temperature control component 211, that is, the first water pump 212 is connected in series to the second main section 210b. In this way, when the thermal management system is in the first working mode and the third working mode, the efficiency from the first exchanger can be improved. The power of the coolant from the outlet end of the heater 30 entering the temperature control component 211 through the second pipe section 400 improves the reliability of the coolant from the first pipeline 100 entering the second pipeline 200 and ensures that the device is cooled when the liquid is to be cooled. 10 is heated (or cooled alone) (refer to FIG. 18) or when the liquid cooling device 10 and the structure to be temperature-regulated 20 are heated (or cooled simultaneously) (refer to FIG. 16), the first heat exchanger is Part or all of the cooling liquid flowing out of the outlet end of the device 30 can enter the second main section 210b of the second pipeline 200 through the second pipe section 400.

Referring to FIG. 18 , in addition, in some examples, the first pipeline 100 may have a second water pump 111 , and the second water pump 111 may be connected in series on the first main section 110 . For example, the second water pump 111 may be connected in series on the first main section 110 . On one main section 110a or the first main section 110b, on the one hand, the second water pump 111 can provide kinetic energy to the coolant in the first pipeline 100 to ensure the stable flow of the coolant in the first pipeline 100, and on the other hand On the one hand, the mass flow rate of the coolant on the first main section 110 of the first pipeline 100 can be controlled by adjusting the rotation speed of the second water pump 111, thereby controlling the mass flow rate of the coolant at the inlet end of the first heat exchanger 30. and the effect of temperature.

In some examples, the inlet end of the second water pump 111 is connected to the outlet end of the first pipe section 300 , and the outlet end of the second water pump 111 is connected to the inlet end of the first heat exchanger 30 , that is, the second water pump 111 is connected in series on the first heat exchanger 300 . On a main section 110a, in this way, when the thermal management system is in the first working mode or the third working mode, the power of the coolant from the second pipeline 200 entering the first pipeline 100 through the first pipeline section 300 can be improved to ensure Part or all of the coolant in the second pipeline 200 can easily enter the first pipeline 100 .

Continuing to refer to FIGS. 1 and 2 , in some examples, the thermal management system may further include a switching valve 600 .

When the thermal management system has the structure of the first example (see FIG. 1 ), that is, the first multi-way valve 500 is connected in series on the first pipeline 100 , and the switch valve 600 is located in the second sub-section of the second pipeline 200 220, and the inlet end of the switching valve 600 is connected to the inlet end b1 of the second sub-section 220, and the outlet end of the switching valve 600 is connected to the outlet end a1 of the second sub-section 220.

Referring to FIGS. 3 to 5 , the switching valve 600 is turned on in the first working mode and the second working mode of the thermal management system, so that the second pipeline 200 is turned on and forms the second circulation loop 201 , so that the second circulation loop 201 is formed. After the coolant in the second circulation loop 201 enters the second heat exchanger 40, the temperature of the structure to be temperature-regulated 20 can be adjusted.

Referring to Figure 6, the switch valve is used to shut off in the third working mode, so that the first heat exchanger 30, the two first main sections 110, the second pipe section 400, the second heat exchanger 40, and the two The second main section 210 and the first pipe section 300 form a third circulation loop 301, for example, the first heat exchanger 30, the first main section 110b, the second pipe section 400, the second main section 210b, the second heat exchanger 40, second The main section 210a, the first pipe section 300 and the first main section 110a are sequentially connected in series to form a third circulation loop 301, so that the coolant in the third circulation loop 301 can reach the third level under the regulation of the temperature control component 211 on the second main section 210. The second target temperature is such that after the cooling liquid enters the first heat exchanger 30, the temperature of the device 10 to be liquid-cooled can be adjusted to the first target temperature.

Referring to FIG. 6 , for example, when the thermal management system is in the third working mode, that is, when the liquid cooling device 10 is to be heated or cooled (for example, heating) alone, the switching valve 600 and the first multi-way valve 500 can be closed. Connect the interface of the first auxiliary section 120 (ie, the second interface 520), open the first interface 510 of the first multi-way valve 500 and the interface of the outlet end of the first main section 110, so that the cooling liquid passes through the first main section 110b and the second The pipe section 400 enters the temperature control component 211 of the second pipeline 200 to be heated and raised in temperature. The heated coolant then enters the first main section 110a of the first pipeline 100 through the second main section 210a and the first pipe section 300. And enter the first heat exchanger 30 to increase the temperature of the cooling liquid entering the first heat exchanger 30, thereby heating the device 10 to be liquid-cooled to a suitable range, and avoiding the need to exit through the first heat exchanger 30 The coolant flowing out from the second pipe section 400 directly enters the second auxiliary section 220, and then directly enters the inlet end of the first heat exchanger 30 from the second auxiliary section 220, the first pipe section 300 and the first main section 110a. , without entering the second main section 210 of the second pipeline 200 for heating, which avoids the coolant in the third circulation loop 301 from being short-circuited at the second auxiliary section 220 .

Referring to FIG. 2 , when the thermal management system has the structure of the second example, that is, the first multi-way valve 500 is connected in series on the second pipeline 200 , the switching valve 600 is located on the first sub-section 120 , and the switching valve 600 The inlet end of the switch valve 600 is connected with the inlet end of the first auxiliary section 120 , and the outlet end of the switch valve 600 is connected with the outlet end of the first auxiliary section 120 .

Referring to FIGS. 7 and 8 , the switching valve 600 is turned on in the first working mode of the thermal management system, so that the first pipeline 100 is turned on and the first circulation loop 101 is formed, so that in the first circulation loop 101 After the coolant enters the first heat exchanger 30, the temperature of the device 11 to be temperature-regulated can be adjusted.

Referring to Figure 10, the switching valve 600 is closed in the third working mode, so that the first heat exchanger 30, the two first main sections 110, the second pipe section 400, the second heat exchanger 40, and the two second The two main sections 210 and the first pipe section 300 form a third circulation loop 301, for example, the first heat exchanger 30, the first main section 110b, the second pipe section 400, the second main section 210b, the second heat exchanger 40, and the The two main sections 210a, the first pipe section 300 and the first main section 110a are sequentially connected in series to form a third circulation loop 301, so that the coolant in the third circulation loop 301 can reach the desired temperature under the regulation of the temperature control component 211 on the second main section 210. The second target temperature allows the cooling liquid to adjust the temperature of the device 10 to be liquid-cooled to the first target temperature after entering the first heat exchanger 30 .

For example, when the liquid cooling device 10 is to be heated or cooled alone (for example, heating alone), the switch valve 600 and the interface in the first multi-way valve 500 that communicates with the second sub-section 220 (ie, the second interface 520) can be closed. Open the first interface 510 of the first multi-way valve 500 and the interface connecting the second main section 210a (ie, the third interface 530), so that the coolant enters the second pipeline 200 through the first main section 110b and the second pipe section 400. The temperature control component 211 is heated and heated, and the heated coolant enters the first main section 110a of the first pipeline 100 through the second main section 210a and the first pipe section 300, and enters the first heat exchanger 30, To increase the temperature of the cooling liquid entering the first heat exchanger 30, thereby raising the temperature of the liquid-cooled device 10 to a suitable range, and avoiding the cooling liquid flowing out through the outlet end of the first heat exchanger 30 through the first main After section 110a, it directly enters the first auxiliary section 120, and then directly enters the inlet end of the first heat exchanger 30 from the first main section 110a, without passing through the second pipe section 400 and entering the second main section of the second pipeline 200. Heating is performed in the section 210 , which prevents the coolant in the third circulation loop 301 from short-circuiting the first sub-section 120 .

Referring to Figures 11 and 12, taking the first example as an example, when the passenger compartment and the batteries in the battery pack need to be heated at the same time, such as in winter, the first working mode is adopted, that is, the heater core 40a is turned on. , battery pack cold plate, electric heating core 221a and condensation plate heat exchanger 211a, first water pump 212, second water pump 111 and switch valve 600, through the electric heating core 221a and condensation plate heat exchanger 211a, the second pipeline 200 That is, the coolant in the second circulation loop 201 is heated to control the second circulation loop 201. The temperature of the coolant in the path 201 is adjusted by adjusting the rotation speed of the first water pump 212 to control the mass flow rate of the coolant in the second circulation loop 201 entering the warm air core 40a, thereby controlling the cooling entering the inlet end of the warm air core 40a. The temperature of the liquid reaches the fourth target temperature, so that the cooling liquid at this temperature can exchange heat with the air in the passenger compartment in the warm air core 40a to increase the temperature in the passenger compartment, so that the temperature in the passenger compartment reaches the fourth target temperature. Three target temperatures.

In addition, by adjusting the rotation speed of the second water pump 111, the mass flow rate of the cooling liquid entering the battery pack cold plate in the first circulation loop 101 is controlled.

Referring to Figure 12, when the coolant temperature at the inlet end of the battery pack cold plate is insufficient, the opening of the three interfaces of the first multi-way valve 500 can be adjusted to control the connection between the second circulation loop 201 and the first circulation loop 101. The mass flow rate m2 of the coolant exchanged between them (i.e., the reference mass flow rate m2) is used to adjust the mixing ratio, that is, to control the proportion of m2 in the mass flow rate m3 of the coolant in the first circulation loop 101 to improve the first The temperature of the coolant in the circulation loop 101 can adjust the temperature entering the inlet end of the cold plate of the battery pack to reach the second target temperature.

Referring to Figure 13, when the passenger compartment is heated separately, the second working mode of the thermal management system can be used, that is, the first interface 510 of the first multi-way valve 500 is controlled to close, and the second interface 520 and the third interface 530 are conducted. On, the switch valve 600 is opened and the second water pump 111 is closed, so that the cooling liquid in the second circulation loop 201 circulates independently in the second circulation loop 201 and is cooled through the condensation plate heat exchanger 211a or the electric heating core 221a. The temperature of the coolant is continuously controlled to ensure that the temperature of the coolant at the inlet end of the warm air core 40a reaches the fourth target temperature. The rotation speed of the first water pump 212 is adjusted to ensure that the mass flow rate of the coolant at the inlet end of the warm air core 40a reaches the target. Therefore, when the coolant enters the heater core 40a, heat exchange can occur with the passenger compartment, so that the temperature of the passenger compartment is controlled within the third target range.

Referring to Figure 14, when the batteries in the battery pack are heated individually, the third working mode of the thermal management system can be adopted, that is, the first interface 510 and the third interface 530 of the first multi-way valve 500 are controlled to be connected, and the The second interface 520 is closed, the switch valve 600 is closed, and the first water pump 212 and the second water pump 111 are both opened, so that the coolant circulates in the second main section 210a, the first pipe section 300, the first main section 110a, the battery pack cold plate, and the first The circulation flow in the third circulation loop 301 formed by the main section 110b, the second pipe section 400, the second main section 210b and the warm air core 40a can pass through the condensation plate heat exchanger 211a or the electric heating core on the second main section 210b. 221a controls the temperature of the coolant so that the temperature of the coolant entering the inlet end of the battery pack cold plate can reach the second target temperature. At the same time, the speed of the first water pump 212 and the second water pump 111 is adjusted to control the temperature of the coolant entering the battery pack cold plate. The mass flow rate of the coolant at the inlet end of the plate reaches the target requirement, so that when the coolant enters the cold plate of the battery pack, heat exchange can occur with the battery, so that the temperature of the battery is controlled within the first target range.

Among them, the switch valve 600 can be a one-way valve 600a or a stop valve 600b, so as to simplify the control process of the switch valve 600 and save the cost of the switch valve 600.

Referring to Figures 14 and 18, taking the switch valve 600 as a one-way valve 600a and located on the second sub-section 220 as an example, when the first water pump 212 is located on the outlet side of the second sub-section 220, that is, the first water pump 212 The second water pump 111 is connected in series on the second main section 210b and is located on the outlet side of the first auxiliary section 120. That is, when the second water pump 111 is connected in series on the first main section 110a, the first water pump 212 and the second water pump 111 can be adjusted. The rotation speed of the second water pump 111 can be adjusted to be greater than the rotation speed of the first water pump 212 when the liquid cooling device 10 is to be heated (or cooled) alone, so that the pressure at the inlet end of the one-way valve 600a is less than the pressure at the outlet end, so that the Turning off the one-way valve 600a in the reverse direction prevents the coolant flowing out from the first main section 110b of the first pipeline 100 from being directly short-circuited at the second auxiliary section 220 and unable to enter the second main section 210 of the second pipeline 200 For example, when the thermal management system is in the third working mode and the battery is heating alone, the rotation speed of the second water pump 111 and the rotation speed of the first water pump 212 can be adjusted so that the rotation speed of the second water pump 111 is greater than that of the first water pump 212 During the suction process of the second water pump 111, the pressure at the inlet end of the one-way valve 600a is less than the pressure at the outlet end, so the one-way valve 600a is turned off in the reverse direction. In this way, from the first main When the cooling liquid flowing out of section 110b flows to the outlet end of the second pipe section 400, it can completely flow into the second main section 210b, so that the temperature control component 211 on the second main section 210 heats or cools the cooling liquid to ensure The coolant flowing into the battery pack cold plate can adjust the temperature of the battery to the first target temperature.

Referring to FIG. 1 , it can be understood that in the above three working modes of the thermal management system, the two second main sections and the pipe section formed by the second heat exchanger 40 all play a role in controlling the coolant temperature in the corresponding modes. , therefore, for convenience of description, the pipe section formed by the two second main sections 210a (210b) and the second heat exchanger 40 can be regarded as the temperature control pipe section 2011.

Based on the above, it can be seen that when the thermal management system of the embodiment of the present application is in the heating mode (see Figures 11 to 14), the second heat exchanger 40 in the temperature control pipe section 2011 is the warm air core 40a, and the temperature control assembly 211 It is a heating component. For example, the temperature control component 211 is at least one of the condensation plate heat exchanger 211a and the electric heating core 221a. That is to say, the two second main sections 210a (210b) and the warm air core 40a form The temperature control pipe section 2011 is the heating pipe section 201a.

When the thermal management system of the embodiment of the present application is in cooling mode, the second heat exchanger 40 in the temperature control pipe section 2011 is the cold air core 40b, and the temperature control component 211 is a cooling component. For example, the temperature control component 211 exchanges heat for the evaporation plate. Device 211b, that is to say, the temperature control pipe section 2011 formed by the two second main sections 210a (210b) and the cold air core 40b is the refrigeration pipe section 201b.

In some examples, when the thermal management system needs to be adjusted to the heating mode, for example, in winter, the second heat exchanger 40 can be replaced with the warm air core 40a, and the temperature control component 211 can be replaced with a heating component ( For example, the condensing plate heat exchanger 211a) makes the temperature control pipe section 2011 a heating pipe section 201a, so that the three working modes of the thermal management system are all in the heating mode.

When the thermal management system needs to be adjusted to the cooling mode, for example, in summer, the second heat exchanger 40 can be replaced with the cold air core 40b, and the temperature control component 211 can be replaced with a cooling component (such as the evaporation plate heat exchanger 211b ), so that the temperature control pipe section 2011 is a refrigeration pipe section 201b, so that the three working modes of the thermal management system are all in the cooling mode.

Figure 19 is another structural schematic diagram of a thermal management system provided by an embodiment of the present application. Referring to Figure 19, in other examples, the number of temperature control pipe sections 2011 is two, and the two temperature control pipe sections 2011 include a cooling pipe section 201b and a heating pipe section 201a. That is to say, one of the temperature control pipe sections 2011 is The refrigeration pipe section 201b and the other temperature control pipe section 2011 are the heating pipe section 201a. The refrigeration pipe section 201b and the heating pipe section 201a are arranged in parallel at both ends of the second sub-section 220.

It can be understood that the heating pipe section 201a includes two second main sections 210a and the second heat exchanger 40 connected between the first end openings of the two second main sections 210a. Correspondingly, the cooling pipe section 201b includes two second main sections 210a. The main section 210a and the second heat exchanger 40 are connected between the first end openings of the two second main sections 210a. Among them, the second heat exchanger 40 of the heating pipe section 201a is the warm air core 40a, and the temperature control component 211 of the heating pipe section 201a is a heating component. For example, the temperature control component 211 of the heating pipe section 201a can include a condensation plate heat exchanger. At least one of the heater 211a and the electric heating core 221a is used to improve the heating efficiency of the coolant. In addition, the second heat exchanger 40 of the refrigeration pipe section 201b is the cold air core 40b, and the temperature control component 211 of the refrigeration pipe section 201b is a cooling component. For example, the temperature control component 211 of the refrigeration pipe section 201b can include an evaporation plate heat exchanger 211b, To improve the cooling efficiency of the coolant.

During specific implementation, the thermal management system may include a second multi-way valve 700 through which both ends of the cooling pipe section 201b and the heating pipe section 201a are connected to the two ends of the second auxiliary section 220 respectively. It should be noted that the two ends of the refrigeration pipe section 201b refer to the second ends of the two second main sections 210 in the refrigeration pipe section 201b (ie, the two ends away from the second heat exchanger 40). Correspondingly, the two ends of the heating pipe section 201a The two ends refer to the second ends of the two second main sections 210 in the heating pipe section 201a (that is, the two ends facing away from the second heat exchanger 40).

Among the two second main sections 210, the second end of the second main section 210a is the outlet end, and the second end of the second main section 210b is the inlet end. That is to say, the temperature control pipe section 2011 is, for example, a heating pipe section. The inlet end of 201a (or refrigeration pipe section 201b) is the second end of the second main section 210b, and the outlet end of the temperature control pipe section 2011, such as the heating pipe section 201a (or refrigeration pipe section 201b), is the second end of the second main section 210b. The second end of the second main section 210a.

Exemplarily, the second multi-way valve 700 may include a fourth interface 710, a fifth interface 720, a sixth interface 730, a seventh interface 740, an eighth interface 750 and a ninth interface 760, and both ends of the heating pipe section 201a are open. They are respectively connected with the fourth interface 710 and the fifth interface 720. For example, the inlet end of the heating pipe section 201a is connected with the fourth interface 710, and the outlet end of the heating pipe section 201a is connected with the fifth interface 720.

Both ends of the refrigeration pipe section 201b are connected to the sixth interface 730 and the seventh interface 740 respectively. For example, the inlet end of the refrigeration pipe section 201b is connected to the sixth interface 730, and the outlet end of the refrigeration pipe section 201b is connected to the seventh interface 740. The openings at both ends of the second sub-section 220 are connected to the eighth interface 750 and the ninth interface 760 respectively. For example, the inlet end of the second sub-section 220 is connected to the eighth interface 750, and the outlet end of the second sub-section 220 is connected to the ninth interface. Interface 760 is connected.

It can be understood that the ninth interface 760 can be directly connected to the outlet end of the second sub-section 220 (ie, the outlet end of the second pipe section 400), or the ninth interface 760 can be connected to the outlet end of the second sub-section 220 through a pipeline. connectivity between. Similarly, the eighth interface 750 can be directly connected to the inlet end of the second sub-section 220 (that is, the inlet end of the first pipe section 300), or the eighth interface 750 can be connected to the inlet end of the second sub-section 220 through a pipeline. of connectivity.

When the fourth interface 710 is connected to the ninth interface 760 and the fifth interface 720 is connected to the eighth interface 750, both ends of the heating pipe section 201a are connected to both ends of the second sub-section 220, that is, the inlet end of the heating pipe section 201a. It is connected with the outlet end of the second sub-section 220 through the fourth interface 710 and the ninth interface 760, and the outlet end of the heating pipe section 201a is connected with the inlet end of the second sub-section 220 through the fifth interface 720 and the eighth interface 750. Correspondingly Ground, the inlet end of the heating pipe section 201a is also connected to the outlet end of the second pipe section 400 through the fourth interface 710 and the ninth interface 760, and the outlet end of the heating pipe section 201a is also connected to the third interface through the fifth interface 720 and the eighth interface 750. The inlet end of a pipe section 300 is connected.

When the sixth interface 730 is connected to the ninth interface 760 and the seventh interface 740 is connected to the eighth interface 750, both ends of the refrigeration pipe section 201b are connected to both ends of the second auxiliary section 220, that is, the inlet end of the refrigeration pipe section 201b passes through the third interface. The sixth interface 730 and the ninth interface 760 are connected to the outlet end of the second sub-section 220, and the outlet end of the refrigeration pipe section 201b is connected to the inlet end of the second sub-section 220 through the seventh interface 740 and the eighth interface 750. Correspondingly, the refrigeration The inlet end of the pipe section 201b is also connected to the outlet end of the second pipe section 400 through the sixth interface 730 and the ninth interface 760, and the outlet end of the refrigeration pipe section 201b is also connected to the first pipe section 300 through the seventh interface 740 and the eighth interface 750. The entrance is connected.

In this way, when the temperature of the structure 20 to be temperature-regulated or the liquid-cooled device 10 is insufficient, the corresponding interface in the second multi-way valve 700 can be connected to connect the heating pipe section 201a in the temperature control pipe section 2011 to the second auxiliary section. The two ends of 220 are connected, so that the cooling liquid in the second pipeline 200 or the first pipeline 100 can be heated through the heating pipe section 201a to improve the flow through the second heat exchanger 40 and the first heat exchanger. The temperature of the cooling liquid is 30, thereby raising the structure 20 to be temperature-regulated or the device 10 to be liquid-cooled to the target temperature.

When the temperature of the structure 20 to be temperature-regulated or the liquid-cooled device 10 is too high, the corresponding interface in the second multi-way valve 700 can be connected to connect the refrigeration pipe section 201b in the temperature control pipe section 2011 to the second auxiliary section 220 The two ends are connected, so that the cooling liquid in the second pipeline 200 or the first pipeline 100 can be cooled through the refrigeration pipe section 201b to reduce the cooling amount flowing through the second heat exchanger 40 and the first heat exchanger 30 The temperature of the liquid is thereby reduced to the target temperature of the structure 20 to be temperature-regulated or the device 10 to be liquid-cooled. The entire switching process is simple and reliable in operation.

For example, when the structure 20 to be temperature-controlled (such as the passenger compartment) and the liquid-cooling device 10 are heated simultaneously, the fourth interface 710 can be controlled to be connected to the ninth interface 760, and the fifth interface 720 to be connected to the eighth interface 750, so as to The heating pipe section 201a in the temperature control pipe section 2011 is connected to both ends of the second auxiliary section 220, and the first working mode of the thermal management system is switched to the heating mode, so that the second circulation loop 201 is switched to the heating circuit 100a. In this first working mode, the coolant flowing out through the warm air core 40a can It flows into the second sub-section 220 through the fifth interface 720 and the eighth interface 750 of the second multi-way valve 700, and flows through the outlet end of the second sub-section 220 and the ninth interface 760 and the fourth interface of the second multi-way valve 700. The interface 710 flows into the second main section 210b, is heated by the condenser plate heat exchanger 211a and the electric heating core 221a, and then flows into the warm air core 40a, and is heated by the warm air core 40a and the air in the passenger compartment.

It can be understood that when the temperature of the coolant in the first circulation loop 101 is insufficient, part of the coolant in the heating circuit 100a can be mixed into the coolant in the first circulation loop 101 through the first pipe section 300 to improve the efficiency of the first circulation. The temperature of the coolant in the circuit 101 is such that the coolant entering the first heat exchanger 30 (for example, the battery pack cold plate) can increase the temperature of the battery to within the first target temperature range.

When the structure 20 to be temperature-regulated (such as the passenger compartment) and the liquid-cooled device 10 are cooled simultaneously, the sixth interface 730 can be controlled to communicate with the ninth interface 760, and the seventh interface 740 can be connected with the eighth interface 750 to connect the temperature-controlled pipe section. In 2011, the two ends of the refrigeration pipe section 201b and the second auxiliary section 220 are connected, and the first working mode of the thermal management system is switched to the refrigeration mode, so that the second circulation loop 201 is the refrigeration loop 100b. In this second working mode, after The cooling liquid flowing out of the second heat exchanger 40 (for example, the cold air core 40b) can flow into the second sub-section 220 through the seventh interface 740 and the eighth interface 750 of the second multi-way valve 700, and then passes through the second sub-section 220. The outlet end and the ninth interface 760 and the sixth interface 730 of the second multi-way valve 700 flow into the second main section 210b, and then flow into the cold air core 40b after being cooled by the evaporation plate heat exchanger 211b. Body 40b and the air in the passenger compartment are cooled.

It can be understood that when the temperature of the cooling liquid in the first circulation loop 101 is too high, part of the cooling liquid in the refrigeration circuit 100b can be mixed into the cooling liquid in the first circulation loop 101 through the first pipe section 300 to reduce the temperature of the first circulation loop 101. The temperature of the coolant in the circuit 101 is such that the coolant entering the first heat exchanger 30 (for example, the battery pack cold plate) can reduce the temperature of the battery to within the first target temperature range.

For another example, when the structure 20 (such as the passenger compartment) to be heated is individually heated, the fourth interface 710 can be controlled to communicate with the ninth interface 760 and the fifth interface 720 can be connected with the eighth interface 750 to connect the temperature control pipe section 2011 The heating pipe section 201a is connected to both ends of the second auxiliary section 220, and the second operating mode of the thermal management system is switched to the heating mode, so that the second circulation loop 201 is switched to the heating circuit 100a. In this second working mode, the coolant flowing out of the heater core 40a can flow into the second sub-section 220 through the fifth interface 720 and the eighth interface 750 of the second multi-way valve 700. 220 and the ninth interface 760 and the fourth interface 710 of the second multi-way valve 700 flow into the second main section 210b, and then flow into the warm air core after being heated by the condensation plate heat exchanger 211a and the electric heating core 221a. In the body 40a, heating is performed by the heater core 40a and the air in the passenger compartment.

When the structure 20 to be temperature-regulated (for example, the passenger compartment) is cooled alone, the sixth interface 730 can be controlled to communicate with the ninth interface 760, and the seventh interface 740 can be connected with the eighth interface 750 to connect the refrigeration pipe section 201b in the temperature control pipe section 2011 with The two ends of the second sub-section 220 are connected, and the second working mode of the thermal management system is switched to the refrigeration mode, so that the second circulation loop 201 is the refrigeration circuit 100b. In the second working mode, through the second heat exchanger 40 (For example, the cooling air core 40b) can flow into the second sub-section 220 through the seventh interface 740 and the eighth interface 750 of the second multi-way valve 700. After passing through the outlet end of the second sub-section 220 and the second The ninth interface 760 and the sixth interface 730 of the multi-way valve 700 flow into the second main section 210b, are cooled by the evaporator plate heat exchanger 211b, and then flow into the cold air core 40b, through the cold air core 40b and the passenger compartment. The air is cooled.

For another example, when the liquid cooling device 10 is to be heated alone, the fourth interface 710 can be controlled to communicate with the ninth interface 760, and the fifth interface 720 can be connected with the eighth interface 750, so as to connect the heating pipe section 201a in the temperature control pipe section 2011 with The two ends of the second sub-section 220 are connected, and the third working mode of the thermal management system is switched to the heating mode. In the third working mode, the cooling liquid flowing out from the outlet of the first heat exchanger 30 (for example, the battery pack cold plate) passes through the first main section 110b, the second pipe section 400, the ninth interface 760, and the fourth interface 710 in sequence. , the second main section 210b, the warm air core 40a, the second main section 210a, the first pipe section 300 and the first main section 110a It flows into the first heat exchanger 30 (such as the battery pack cold plate), so that the cooling liquid is heated through the second main section 210, such as the condensation plate heat exchanger 211a and the electric heating core 221a on the second main section 210b, and the temperature rises. After the coolant enters the first heat exchanger 30 (such as the battery pack cold plate), the device 10 to be liquid-cooled, such as the battery, can be heated to ensure that the device 10 to be liquid-cooled, such as the battery, is maintained within the first target temperature range. .

When the liquid cooling device 10 is to be cooled alone, the sixth interface 730 can be controlled to communicate with the ninth interface 760, and the seventh interface 740 can be connected with the eighth interface 750 to connect the refrigeration pipe section 201b in the temperature control pipe section 2011 with the second sub-section 220. The two ends are connected, and the third working mode of the thermal management system is switched to the cooling mode. In the third working mode, the cooling liquid flowing out from the outlet of the first heat exchanger 30 (for example, the battery pack cold plate) passes through the first main section 110b, the second pipe section 400, the ninth interface 760, and the fourth interface 710 in sequence. , the second main section 210b, the cold air core 40b, the second main section 210a, the first pipe section 300 and the first main section 110a flow into the first heat exchanger 30 (such as the battery pack cold plate), so that through the second main section 210 For example, the evaporation plate heat exchanger 211b on the second main section 210b cools the cooling liquid. After the cooled liquid enters the first heat exchanger 30 (such as the battery pack cold plate), it can be treated with liquid cooling. The device 10, such as a battery, is cooled down to ensure that the device 10, such as a battery, to be liquid-cooled is maintained within the first target temperature range.

Continuing to refer to FIG. 19 , in some examples, the condensation plate heat exchanger 211a in the heating pipe section 201a and the evaporation plate heat exchanger 211b in the cooling pipe section 201b may be arranged in series. Specifically, the inlet end of the condensation plate heat exchange core in the condensation plate heat exchanger 211a is connected with the outlet end of the evaporation plate heat exchange core in the evaporation plate heat exchanger 211b, and the inlet end of the evaporation plate heat exchange core is connected with the condensation plate heat exchange core. The outlet end is connected, so that the refrigerant (such as refrigerant) can be recycled and the cost of the thermal management system can be saved. In addition, it can be ensured that the refrigerant in the condensation plate heat exchanger 211a is in a high-temperature gas state during each heating process, or that the refrigerant in the evaporation plate heat exchanger 211b is in a low-temperature liquid state during each cooling process.

For example, when the thermal management system is in the heating mode, each time the coolant passes through the condensation plate heat exchanger 211a, the gaseous refrigerant in the condensation plate heat exchange core condenses and releases heat to the coolant, causing the refrigerant temperature to decrease and form a Liquid refrigerant, the liquid refrigerant can flow into the evaporation plate heat exchange core of the evaporation plate heat exchanger 211b. After evaporating through the evaporation plate heat exchange core to form a gaseous state, it can then flow into the condensation plate heat exchange core for condensation and heat release, so Repeat the cycle.

Correspondingly, when the thermal management system is in the cooling mode, each time the coolant passes through the evaporator plate heat exchanger 211b, the liquid refrigerant in the evaporator plate heat exchange core absorbs the heat of the coolant to evaporate, causing the refrigerant temperature to rise. , and forms a gaseous refrigerant. The gaseous refrigerant can flow into the condensation plate heat exchange core of the condensation plate heat exchanger 211a. After being condensed into a liquid state by the condensation plate heat exchanger core, it can then flow into the evaporation plate of the evaporation plate heat exchanger 211b. The plate heat exchange core evaporates and absorbs heat, and the cycle repeats.

When set, the condensation plate heat exchange core and the evaporation plate heat exchange core can be connected through a third pipeline 800. For example, the inlet end of the condensation plate heat exchange core is connected to the outlet end of the evaporation plate heat exchange core through one of the third pipelines 800. The inlet end of the heat exchange core of the evaporation plate is connected with the outlet end of the heat exchange core of the condensation plate through another third pipe 800, so that the refrigerant exchanges heat between the third pipe 800, the condensation plate heat exchange core and the evaporation plate. Circulation flows in the fourth circulation loop formed by the core.

In some examples, a third water pump 810 may be provided on the third pipeline 800. The third water pump 810 is used to provide kinetic energy to the refrigerant (for example, refrigerant) to ensure that the refrigerant circulates in the condensation plate heat exchanger of the fourth circulation loop. 211a and the evaporation plate heat exchanger 211b flow smoothly. In addition, the mass flow rate of the refrigerant entering the condensation plate heat exchanger 211a or the evaporation plate heat exchanger 211b can be controlled by adjusting the rotation speed of the third water pump 810.

Referring to FIG. 19 , the thermal management system of the embodiment of the present application may further include a fourth pipeline 900 , and both ends of the fourth pipeline 900 may be connected to both ends of the first heat exchanger 30 (such as a battery pack cold plate). , that is, the fourth pipeline 900 and the first pipeline 100 are arranged in parallel. For example, the two end openings of the fourth pipeline 900 are connected to the second end openings of the two first main sections 110 respectively. The fourth pipeline 900 , the two first main sections 110 and the first heat exchanger 30 jointly form a heat dissipation system. loop. For example, the inlet end of the fourth pipeline 900 It is connected with the second end of the first main section 110b, and the outlet end of the fourth pipeline 900 is connected with the second end of the first main section 110a.

The fourth pipeline 900 is provided with a radiator 910 , the inlet end of the radiator 910 is connected to the inlet end of the fourth pipeline 900 , and the outlet end of the radiator 910 is connected to the outlet end of the fourth pipeline 900 . When the temperature of the liquid cooling device 10 (such as a battery) is too high, the heat of the battery can be transferred to the coolant through the first heat exchanger 30, and the coolant can be transferred to the radiator 910 driven by the second water pump 111. The radiator 910 dissipates the heat of the coolant to the environment to reduce the temperature of the battery.

In this embodiment, the radiator 910 may be a tubular radiator or an electronic radiator in the prior art, and the structure of the radiator 910 is not limited here.

When configured, the second multi-way valve 700 may include a tenth interface 770 and an eleventh interface 780 . The openings at both ends of the fourth pipeline 900 are respectively connected to the tenth interface 770 and the eleventh interface 780. For example, the inlet end of the fourth pipeline 900 is connected to the tenth interface 770, and the outlet end of the fourth pipeline 900 is connected to the tenth interface 770. The eleventh interface 780 is connected.

In this way, when it is necessary to dissipate heat from the batteries in the battery pack through the radiator 910 of the fourth pipeline 900, the tenth interface 770 can be connected to the ninth interface 760, and the eleventh interface 780 can be connected to the eighth interface 750, so that The inlet end of the fourth pipeline 900 is connected to the outlet end of the first main section 110 through the second pipe section 400, and the outlet end of the fourth pipeline 900 is connected to the inlet end of the first main section 110 through the first pipe section 300, so that The fourth pipeline 900, the two first main sections 110 and the first heat exchanger 30 (for example, the battery pack cold plate) can form a heat dissipation circuit, so that the radiator 910 dissipates heat to the battery.

In addition, by connecting the openings at both ends of the fourth pipeline 900 to the tenth interface 770 and the eleventh interface 780 of the second multi-way valve 700, the heat dissipation mode of the battery pack can be adjusted at any time according to actual needs. Moreover, the mode switching of the thermal management system is convenient and the process is simple.

Continuing to refer to Figure 19, the thermal management system of the embodiment of the present application may also include a fifth pipeline 1000. The fifth pipeline 1000 is provided with a power assembly 1100 and a fourth water pump 1200. The power assembly 1100 includes a power assembly. components and a heat dissipation channel, the heat dissipation channel is located in the powertrain device, the inlet end of the heat dissipation channel is connected to the inlet end of the fifth pipeline 1000, and the outlet end of the heat dissipation channel is connected to the outlet end of the fifth pipeline 1000, The fourth water pump 1200 is connected in series to the fifth pipeline 1000. And the heat dissipation pipe is connected to the pipe of the fifth pipe 1000, and both are used to circulate coolant.

Among them, the pipes of the heat dissipation channel and the fifth pipe 1000 are used to circulate coolant. The powertrain 1100 may include a motor, an inverter, a distribution box and other components.

Exemplarily, the second multi-way valve 700 may include a twelfth interface 790, the inlet end of the fifth pipeline 1000 is connected to the outlet end of the radiator 910, and the outlet end of the fifth pipeline 1000 is connected to the twelfth interface 790. .

In some feasible embodiments, when the twelfth interface 790 and the tenth interface 770 are connected, the outlet end of the fifth pipeline 1000 is conveniently connected to the inlet end of the fourth pipeline 900, so that the fourth pipeline 900 is connected to the inlet end of the fourth pipeline 900. The fifth pipeline 1000 forms a powertrain heat dissipation circuit. In this way, after the heat of the components of the powertrain 1100 is transferred to the coolant in the heat dissipation channel, it can be transferred to the radiator 910 through the fourth water pump 1200, and the radiator 910 then This heat is dissipated to the environment, thereby achieving heat dissipation for the components in the powertrain 1100 .

In other possible embodiments, the fifth pipeline 1000 may be connected to the temperature control pipe section 2011, and the temperature of the powertrain 1100 in the fifth pipeline 1000 is adjusted through the temperature control components on the temperature control pipe section 2011.

For example, when the fourth interface 710 of the second multi-way valve 700 is connected to the twelfth interface 790 and the fifth interface 720 is connected to the eleventh interface 780, the heating pipe section 201a can be connected to the fifth pipeline 1000, so that The inlet end of the heating pipe section 201a is connected to the outlet end of the fifth pipeline 1000, and the outlet end of the heating pipe section 201a is connected to the inlet end of the fifth pipeline 1000. In this way, the heating pipe section 201a and the fifth pipeline 1000 can form a The fifth circulation loop, the coolant in the fifth circulation loop can be heated and raised in temperature through the condensation plate heat exchanger 211a in the heating pipe section 201a, thereby ensuring that the coolant entering the powertrain can It can heat the structural parts of the powertrain to ensure that the powertrain is within a suitable temperature range, thereby improving the working efficiency of the powertrain.

For another example, when the sixth interface 730 of the second multi-way valve 700 is connected to the twelfth interface 790, and the seventh interface 740 is connected to the eleventh interface 780, the refrigeration pipe section 201b can be connected to the fifth pipeline 1000, so that The inlet end of the refrigeration pipe section 201b is connected to the outlet end of the fifth pipeline 1000, and the outlet end of the refrigeration pipe section 201b is connected to the inlet end of the fifth pipeline 1000. In this way, the refrigeration pipe section 201b and the fifth pipeline 1000 can form a fifth cycle. loop, the coolant in the fifth circulation loop can be cooled by the evaporation plate heat exchanger 211b in the refrigeration pipe section 201b, thereby ensuring that the coolant entering the powertrain can cool down the structural parts of the powertrain. , ensuring that the powertrain is within the appropriate temperature range, thereby improving the efficiency of the powertrain.

The battery provided by the embodiment of the present application realizes temperature control of the battery by placing the first heat exchanger 30 (such as the battery pack cold plate) in the thermal management system in thermal contact with the battery to ensure that the battery is at a suitable temperature. In addition, By arranging the above-mentioned thermal management system in the vehicle, on the one hand, the cooling capacity and temperature of the structure to be temperature-regulated in the vehicle and the battery can be balanced. On the other hand, the control process of the thermal management system is simple, controllable and low-cost.

It should be noted here that the numerical values and numerical ranges involved in the embodiments of this application are approximate values. Affected by the manufacturing process, there may be a certain range of errors. Those skilled in the art can consider these errors to be ignored.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, and all of them should be covered. Within the protection scope of the present application, the embodiments of the present application and the features in the embodiments may be combined with each other if there is no conflict. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

It should be understood that in this application, "connected", "connected" and "connected" can all refer to a mechanical connection relationship or a physical connection relationship, that is, the connection between A and B or the connection between A and B can refer to the existence between A and B. Fastening components (such as screws, bolts, rivets, etc.), or A and B are in contact with each other and A and B are difficult to separate. In addition, "connected" means that A and B are connected in certain states, but not that A and B are always connected in any state.

In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, "connection" may be detachably The connection can also be a non-detachable connection; it can be a direct contact connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances. The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "left", "right", "inner", "outer", etc., are only for reference to the direction of the drawings. Therefore, use The orientation terms are used to describe and understand the embodiments of the present application better and more clearly, but do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. Limitations of Application Examples. "Plural" means at least two.

In the embodiment of this application, "and/or" is just an association relationship describing associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and A and A exist simultaneously. B, there are three situations of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

The terms "first", "second", "third", "fourth", etc. (if present) in the description and claims of the embodiments of this application and the above-mentioned drawings are used to distinguish similar objects, and It is not necessary to describe a specific order or sequence.

Reference in this specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Therefore, in this manual Phrases such as "in one embodiment", "in some embodiments", "in some other embodiments", "in other embodiments", etc. that appear differently do not necessarily all refer to the same embodiment. means "one or more but not all embodiments" unless otherwise specifically emphasized. The terms “including,” “includes,” “having,” and variations thereof all mean “including but not limited to,” unless otherwise specifically emphasized.

Claims

A thermal management system, characterized by including:

A first heat exchanger, the first heat exchanger is used for heat exchange with the device to be liquid-cooled, and the inlet end of the first heat exchanger is connected to the outlet end of the first heat exchanger through a first pipeline. ;

a second heat exchanger, the second heat exchanger is used for heat exchange with the structure to be tempered, and the inlet end of the second heat exchanger is connected to the outlet end of the second heat exchanger through a second pipeline;

A first pipe section and a second pipe section, the inlet end of the first pipe section is connected to the second pipeline and is connected in series to the outlet end of the second heat exchanger; the outlet end of the first pipe section is connected to the second pipe section. The first pipeline is connected to the inlet end of the first heat exchanger and is connected in series; the inlet end of the second pipe section is connected to the first pipeline and is connected in series to the outlet end of the first heat exchanger. ;The outlet end of the second pipe section is connected to the second pipeline and is connected in series to the inlet end of the second heat exchanger;

A first multi-way valve, the first multi-way valve includes a first interface, a second interface and a third interface;

The inlet end of the first pipe section is connected to the second pipeline through the first interface, and the first multi-way valve is connected in series on the second pipeline through the second interface and a third interface; or , the inlet end of the second pipe section is connected to the first pipeline through the first interface, and the first multi-way valve is connected in series on the first pipeline through the second interface and the third interface;

The first interface, the second interface and the third interface of the first multi-way valve are used for conduction in the first working mode to connect the first pipeline and the first exchanger. The heat exchanger forms a first circulation loop, the second pipeline and the second heat exchanger form a second circulation loop, and the cooling liquid in the second circulation loop is connected to the first pipe section through the first pipe section. The coolant in the first circulation loop is mixed, and the coolant in the first circulation loop is mixed with the coolant in the second circulation loop through the second pipe section, wherein the first working mode is The first heat exchanger and the second heat exchanger are both in working mode.
The thermal management system according to claim 1, characterized in that the second pipeline includes a second auxiliary section and two second main sections, wherein a first end of one of the second main sections is connected to the first end of the second main section. The outlet ends of the two heat exchangers are connected, the second end of one of the second main sections is connected with the inlet end of the second auxiliary section and the inlet end of the first pipe section respectively, and the other of the second main section is connected with the inlet end of the second auxiliary section and the inlet end of the first pipe section respectively. The first end of the two main sections is connected to the inlet end of the second heat exchanger, and the second end of the other second main section is connected to the outlet end of the second auxiliary section and the second heat exchanger respectively. The outlet ends of the pipe sections are connected;

A temperature control component and a first water pump are connected in series on the second pipeline. The temperature control component is connected in series on the second main section of the inlet end of the second heat exchanger, and one end of the temperature control component is connected to the first water pump. The inlet ends of the two heat exchangers are connected, and the other end of the temperature control component is connected with the outlet end of the first water pump.
The thermal management system according to claim 2, wherein the first water pump is connected in series between the outlet end of the second pipe section and the temperature control component.
The thermal management system according to any one of claims 1 to 3, characterized in that the first pipeline includes a first auxiliary section and two first main sections, wherein the first section of one of the first main sections The end is connected to the inlet end of the first heat exchanger, and the second end of one of the first main sections is connected to the outlet end of the first auxiliary section and the outlet end of the first pipe section respectively, The first end of the other first main section is connected to the outlet end of the first heat exchanger, and the second end of the other first main section is connected to the inlet end of the first auxiliary section respectively. Communicated with the inlet end of the second pipe section;

There is a second water pump on the first pipeline, and the second water pump is connected in series on the first main section.
The thermal management system of claim 4, wherein the inlet end of the second water pump is connected to the first The outlet end of the pipe section is connected, and the outlet end of the second water pump is connected with the inlet end of the first heat exchanger.
The thermal management system according to any one of claims 2 to 5, further comprising: a switch valve;

The first multi-way valve is connected in series on the second pipeline, the switching valve is connected in series on the first auxiliary section of the first pipeline, and the inlet end of the switching valve is connected to the first auxiliary section. The inlet end of the switch valve is connected with the outlet end of the first auxiliary section, and the switch valve is used for conduction in the first working mode to connect the first pipeline and the The first heat exchanger is formed as a first circulation loop, and the switch valve is used to shut off in the third working mode, so that the first heat exchanger, the two first main sections, the second pipe section, and the second The heat exchanger, the two second main sections and the first pipe section form a third circulation loop;

Alternatively, the first multi-way valve is connected in series on the first pipeline, the switching valve is connected in series on the second sub-section of the second pipeline, and the inlet end of the switching valve is connected to the second The inlet end of the auxiliary section is connected, and the outlet end of the switching valve is connected with the outlet end of the second auxiliary section. The switching valve is used for conduction in the first working mode and the second working mode, so that the The first pipeline and the first heat exchanger form a first circulation loop, the second pipeline and the second heat exchanger form a second circulation loop, and the switch valve is used in the third working mode Turn off at the bottom, so that the first heat exchanger, the two first main sections, the second pipe section, the second heat exchanger, the two second main sections and the first pipe section form a third circulation loop;

Wherein, the second working mode is a mode in which the second heat exchanger is in a working state and the second heat exchanger is in a non-working state, and the third working mode is when the first heat exchanger is in a working state. state, the second heat exchanger is in a non-working mode.
The thermal management system according to claim 6, characterized in that the switch valve is a one-way valve or a stop valve.
The thermal management system according to any one of claims 1 to 7, characterized in that the first multi-way valve is a proportional three-way valve.
The thermal management system according to any one of claims 1 to 8, further comprising a second multi-way valve, the second multi-way valve including a fourth interface, a fifth interface, a sixth interface, a seventh interface interface, eighth interface and ninth interface;

The two second main sections of the second pipeline and the second heat exchanger form a temperature control pipe section. The number of the temperature control pipe sections is two. The two temperature control pipe sections include a refrigeration pipe section and a heating pipe section. , the two ends of the heating pipe section are connected to the fourth interface and the fifth interface respectively, and the two ends of the refrigeration pipe section are connected to the sixth interface and the seventh interface respectively; the second Both ends of the second sub-section of the pipeline are connected to the eighth interface and the ninth interface respectively;

The two ends of the heating pipe section are connected to the ninth interface at the fourth interface, and when the fifth interface is connected to the eighth interface, they are connected to both ends of the second sub-section; the refrigeration pipe section The two ends are connected to the sixth interface and the ninth interface, and the seventh interface is connected to the two ends of the second sub-section when the seventh interface is connected to the eighth interface.
The thermal management system according to claim 9, characterized in that the second heat exchanger of the heating pipe section is a warm air core, and the temperature control component of the heating pipe section includes a condensation plate heat exchanger and an electric heater. At least one of the cores.
The thermal management system according to claim 9 or 10, characterized in that the second heat exchanger of the refrigeration pipe section is a cold air core, and the temperature control component of the refrigeration pipe section includes an evaporation plate heat exchanger.
The thermal management system according to any one of claims 9 to 11, characterized in that the condensation plate heat exchanger in the heating pipe section has a condensation plate heat exchange core, and the evaporation plate heat exchanger in the refrigeration pipe section has an evaporation plate heat exchanger. Plate heat exchange core, the inlet end of the condensation plate heat exchange core is connected to the outlet end of the evaporation plate heat exchange core, and the inlet end of the evaporation plate heat exchange core is connected to the outlet end of the condensation plate heat exchange core. ;

Both the condensation plate heat exchange core and the evaporation plate heat exchange core are used to circulate refrigerant.
The thermal management system according to any one of claims 1 to 12, wherein the first heat exchanger is a battery pack cold plate, and the battery pack cold plate is in thermal contact with the battery of the battery pack.
A vehicle, characterized by comprising a battery and a thermal management system as claimed in any one of claims 1-13;

The first heat exchanger of the first pipeline in the thermal management system is in thermal contact with the battery.
The vehicle of claim 14, further comprising a passenger compartment;

The second heat exchanger of the second pipeline in the thermal management system is located in the passenger compartment.