Thermal management system and vehicle

Abstract

The invention discloses a thermal management system and a vehicle. The thermal management system comprises a first thermal management loop, a second thermal management loop and a third thermal management loop; the first heat management loop comprises a range extender, a first heat exchange channel of the heat exchanger and a temperature adjusting device. The second thermal management loop comprises a range extender, a radiator and a temperature adjusting device; the temperature adjusting device is used for dividing cooling liquid into the first heat management loop and the second heat management loop based on the temperature of the cooling liquid of the range extender. The third heat management loop comprises a second heat exchange channel of the heat exchanger and a warm air core body; the heat exchanger transmits heat of the first heat management loop to the third heat management loop through the first heat exchange channel and the second heat exchange channel, and the third heat management loop is used for supplying heat to a passenger compartment of the vehicle. According to the scheme, heat of the range extender can be used for supplying heat to the passenger compartment or heating the battery, the power consumption of the vehicle is reduced, the endurance mileage is increased, and meanwhile the adverse effect on a heating loop of the heat management system caused by the too high temperature of the cooling liquid of the range extender can be reduced.

Description

Technical Field

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

[0002] Electric vehicles achieve range and driving by storing electrical energy, allowing users to conveniently charge their vehicles at home. Furthermore, compared to traditional vehicles, electric vehicles are more environmentally friendly. Their use has become increasingly widespread in recent years.

[0003] As users demand for temperature comfort during vehicle use, electric vehicles can use thermal management systems to achieve temperature regulation of the passenger compartment. In addition, the thermal management system also regulates the temperature of devices such as batteries and electric drives in the vehicle to ensure the working performance of these devices. Especially in winter vehicle use scenarios, the thermal management system can be used to heat the passenger compartment or the battery. This consumes more electricity and reduces the vehicle's range. In extended-range electric vehicles, the passenger compartment can be heated or the battery can be heated by recovering the waste heat of the range extender to reduce power consumption. However, if the temperature of the range extender is too high, directly introducing the coolant of the range extender cooling circuit into the heating circuit of the thermal management system will cause the temperature of the heating circuit to be too high, and there is a risk of adverse effects (such as damage to the components therein). Summary of the Invention

[0004] The present application provides a thermal management system and a vehicle, which can utilize the heat of a range extender to heat the passenger compartment or the battery, thereby reducing the vehicle's power consumption, increasing the cruising range, and reducing the adverse effects of excessively high range extender coolant temperature on the thermal management system's heating circuit.

[0005] In a first aspect, the present application provides a thermal management system for a vehicle, the thermal management system comprising a first thermal management circuit, a second thermal management circuit, and a third thermal management circuit;

[0006] The aforementioned first thermal management circuit includes a range extender, a first heat exchange channel of a heat exchanger, and a temperature regulating device;

[0007] The second thermal management circuit includes the range extender, a radiator, and the temperature control device; the temperature control device is used to divert the coolant of the range extender to the first thermal management circuit and the second thermal management circuit based on the temperature of the coolant;

[0008] The aforementioned third thermal management circuit includes the second heat exchange channel of the aforementioned heat exchanger and a heater core; the aforementioned heat exchanger transfers the heat of the aforementioned first thermal management circuit to the aforementioned third thermal management circuit through the aforementioned first heat exchange channel and the aforementioned second heat exchange channel, and the aforementioned third thermal management circuit is used to heat the passenger compartment of the aforementioned vehicle.

[0009] Exemplarily, the temperature regulating device includes a three-way joint and a thermostat, or the temperature regulating device includes a three-way valve and a temperature sensor.

[0010] In the above scheme, the first thermal management loop and the third heat exchange loop are separated by the two heat exchange channels of the heat exchanger to prevent the high-temperature coolant in the first thermal management loop from directly entering the third thermal management loop; in addition, a temperature adjustment device is also provided on the first thermal management loop, which is used to divert the coolant to the third thermal management loop based on the temperature of the coolant, so as to reduce the flow rate of the first thermal management loop, and thereby reduce the heat transferred to the third thermal management loop, so as to achieve temperature control of the coolant in the third thermal management loop and reduce the adverse effects caused by excessive temperature.

[0011] In a possible implementation, the first thermal management loop further includes a first water pump, and the third thermal management loop further includes a second water pump, and the lift of the first water pump is different from the lift of the second water pump.

[0012] In the above solution, due to practical application requirements, the first and third thermal management circuits utilize pumps with different heads. Based on this, separating the first and third thermal management circuits in this solution can also prevent adverse effects on the respective circuits' pumps due to mismatched flow rates or pressures caused by the different pump heads. For example, if the first thermal management circuit's pump has a higher head and flow rate, while the third thermal management circuit's pump has a lower head and flow rate, separating them can prevent adverse effects on the third thermal management circuit's pump due to pressure and flow mismatches.

[0013] In one possible implementation, the coolant in the first thermal management loop is provided by a first kettle, and the coolant in the third thermal management loop is provided by a second kettle, and the capacities of the first kettle and the second kettle are different.

[0014] In the above solution, due to practical application requirements, the first and third thermal management loops use water bottles of different capacities. Separating the first and third thermal management loops can therefore prevent coolant from leaking out of the two water bottles. Furthermore, it can prevent overflow from the smaller water bottle due to a larger amount of coolant being filled. For example, if the first thermal management loop has a larger capacity water bottle and the third has a smaller capacity water bottle, separating them can prevent overflow from the third thermal management loop.

[0015] In one possible implementation, the thermal management system includes a fourth thermal management circuit, the fourth thermal management circuit includes the heater core, and the fourth thermal management circuit is used to heat the passenger compartment.

[0016] The aforementioned thermal management system includes a first three-interface device and a second three-interface device. The first three-interface device and the aforementioned three-interface device are used to connect the aforementioned second heat exchange channel to the aforementioned fourth thermal management loop to form the aforementioned third thermal management loop.

[0017] In the above solution, the heat of the range extender can be transferred to the passenger compartment for heating through the third thermal management loop while making minimal changes to the fourth thermal management loop, thus saving modification costs.

[0018] In a possible implementation, the first three-interface device or the second three-interface device is a first three-way connector or a first three-way valve.

[0019] In the above scheme, the specific form of the three-interface device is defined. If it is a three-way valve, the flow rate flowing through the second heat exchange channel can be adjusted by adjusting the opening size of the three-way valve. The smaller the flow rate, the less heat is transferred from the first heat exchange channel, thereby further adjusting the temperature of the coolant in the third thermal management circuit and reducing the adverse effects caused by excessive temperature.

[0020] In one possible implementation, the third thermal management loop further includes a battery, and the third thermal management loop is further used to heat the battery.

[0021] In the above scheme, the warm air circuit and the battery heating circuit are connected in series, and the recovered range extender heat can also be used to heat the battery, thereby improving the utilization rate of the range extender heat.

[0022] In a possible implementation, when the foot damper of the air conditioning box of the vehicle is closed, the third thermal management circuit is used solely to heat the battery.

[0023] In the above scheme, the air conditioning box's foot-blowing damper can be closed to stop the air conditioning's warm air circuit from heating the passenger compartment. In this case, the heat from the range extender can be used to heat the battery alone to meet the battery's temperature requirements.

[0024] In one possible implementation, the thermal management system further includes a battery heating circuit, the battery heating circuit includes a battery, and the battery heating circuit is used to heat the battery; the coolant in the battery heating circuit is the coolant diverted from the third thermal management circuit.

[0025] In the above solution, the air conditioning warm air circuit and the battery heating circuit are connected in parallel, and the coolant diverted from the third thermal management circuit is input into the battery heating circuit to heat the battery.

[0026] In one possible implementation, the first interface of the aforementioned first three-interface device is connected to the first interface of the aforementioned second three-interface device, the second interface of the aforementioned first three-interface device is connected to the inlet of the second heat exchange channel of the aforementioned heat exchanger, the second interface of the aforementioned second three-interface device is connected to the outlet of the second heat exchange channel of the aforementioned heat exchanger, the third interface of the aforementioned first three-interface device is connected to the coolant outlet of the aforementioned heater core, and the third interface of the aforementioned second three-interface device is connected to the coolant inlet of the aforementioned heater core.

[0027] In the above solution, the heat of the range extender is introduced into the warm air circuit of the air conditioner or the battery heating circuit through the first three-interface device and the second three-interface device, which is simple to implement and reduces the implementation cost.

[0028] In one possible implementation, if the temperature regulating device includes the three-way joint and the thermostat; the first interface of the three-way joint is connected to the coolant outlet of the range extender, the second interface of the three-way joint is connected to the inlet of the first heat exchange channel of the heat exchanger, and the third interface of the three-way joint is connected to the coolant inlet of the radiator;

[0029] The first inlet of the thermostat is connected to the outlet of the first heat exchange channel of the heat exchanger, the second inlet of the thermostat is connected to the coolant outlet of the radiator, and the outlet of the thermostat is connected to the coolant inlet of the range extender.

[0030] In the above solution, the coolant of the range extender can be simply and inexpensively diverted to the first thermal management loop and the second thermal management loop through the three-way joint and the thermostat, so as to effectively control the heat transferred to the third thermal management loop, thereby controlling the temperature of the coolant in the third thermal management loop and reducing the adverse effects of excessive temperature.

[0031] In a second aspect, the present application provides a vehicle comprising a thermal management system as described in any one of the first aspects above. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figures 1 to 12 A schematic diagram of the structure of the thermal management system provided in an embodiment of the present application;

[0033] Figure 13 Shown is a schematic structural diagram of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In the embodiment of the present application, "multiple" refers to two or more. In the embodiment of the present application, "and / or" is used to describe the association relationship of associated objects, indicating three relationships that can exist independently. For example, A and / or B can be expressed as follows: A exists alone, B exists alone, or A and B exist at the same time. The description methods such as "at least one of a1, a2, ... and an" used in the embodiment of the present application include the situation where any one of a1, a2, ... and an exists alone, and also include any combination of any multiple of a1, a2, ... and an, each of which can exist alone; for example, the description method of "at least one of a, b and c" includes the situation where a is alone, b is alone, c is alone, a and b combination, a and c combination, b and c combination, or abc combination.

[0035] In this application, the terms "first," "second," and the like are used to distinguish between identical or similar items having substantially the same function or effect. It should be understood that "first," "second," and "nth" do not have a logical or temporal dependency, nor do they limit the quantity or order of execution. It should also be understood that although the following description uses the terms "first," "second," and the like to describe various elements, these elements should not be limited by these terms. These terms are simply used to distinguish one element from another.

[0036] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between the various embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0037] For example, the connection described in the embodiments of the present application refers to direct or indirect connection of the coolant channel or the refrigerant channel, or connection achieved by adjusting relevant valve devices, etc.

[0038] An embodiment of the present application provides a thermal management system and a vehicle. The vehicle includes the thermal management system. The thermal management system can ensure the heating needs of the vehicle's passenger compartment or battery heating while reducing the vehicle's power consumption and increasing the cruising range. The vehicle can be, for example, a range extended electric vehicle (REEV) or a hybrid electric vehicle (HEV). Alternatively, the vehicle can be, for example, a vehicle whose entire vehicle operation mode can operate in an extended-range mode or a hybrid mode as needed. For example, in an extended-range electric vehicle or in an extended-range mode, electricity can be generated by a range extender in the vehicle and supplied to the vehicle's motor to drive the vehicle. The range extender can be, for example, an engine, a generator, or a combination of an engine and a generator.

[0039] The thermal management system provided in the embodiment of the present application includes a first thermal management loop, a second thermal management loop, and a third thermal management loop. The first thermal management loop can transfer the heat of the range extender in the vehicle to the third thermal management loop, so that the third thermal management loop can heat the passenger compartment of the vehicle. The second thermal management loop can be used to dissipate excess heat from the range extender to avoid damage caused by overheating of the range extender. For ease of understanding, please refer to the example Figure 1 The schematic diagram of the thermal management system structure is shown.

[0040] For example, in Figure 1 The thermal management system 100 shown may include a first thermal management loop L1 , a second thermal management loop L2 , and a third thermal management loop L3 .

[0041] For example, the first thermal management loop L1 may include a range extender 101, a first heat exchange channel of a heat exchanger 102, and a temperature regulating device 103. Figure 1 In the embodiment, the temperature regulating device 103 may include a thermostat 1031 and a three-way joint 1032. For example, the first thermal management loop L1 may further include a first water pump 104. That is, the coolant in the first thermal management loop L1 is driven by the first water pump 104. It is understood that the first water pump 104 may be set at any position in the first thermal management loop L1, not limited to Figure 1 The position shown is not limited in this embodiment of the present application.

[0042] For example, in the first thermal management loop L1, the interface d between the coolant outlet of the range extender 101 and the T-joint 1032 is 11 Connected. Interface d of the three-way connector 1032 12 The outlet of the first heat exchange channel of the heat exchanger 102 is connected to the inlet of the thermostat 1031. 11 The outlet d of the thermostat 1031 13 The heat exchanger 102 is connected to the coolant inlet of the range extender 101. For example, the heat exchanger 102 may be a water-to-water heat exchanger.

[0043] Illustratively, the second thermal management loop L2 may include the range extender 101, a first radiator 105, and the temperature control device 103. The temperature control device 103 may be configured to divide the coolant in the range extender 101 into the first thermal management loop L1 and the second thermal management loop L2 based on the temperature of the coolant. Illustratively, the coolant in the second thermal management loop L2 is also driven by the first water pump 104.

[0044] For example, in the second thermal management loop L2, the interface d between the coolant outlet of the range extender 101 and the T-joint 1032 is 11 Connected. Interface d of the three-way connector 1032 13 The coolant outlet of the first radiator 105 is connected to the inlet of the thermostat 1031. 12 The outlet d of the thermostat 1031 13 Connected to the coolant inlet of the range extender 101.

[0045] Exemplarily, the first heat sink 105 may be a high-temperature heat sink.

[0046] Exemplarily, the coolant in the first thermal management loop L1 and the second thermal management loop L2 may be supplemented by the first kettle 106 .

[0047] Exemplarily, the third thermal management loop L3 may include the second heat exchange channel of the heat exchanger 102 and a heater core 107. The heat exchanger 102 transfers heat from the first thermal management loop L1 to the third thermal management loop L3 via the first and second heat exchange channels. The third thermal management loop L3 may be used to heat the vehicle's passenger compartment.

[0048] For example, Figure 1 As shown, the third thermal management loop L3 may further include a coolant channel of the condenser 108 and a second water pump 109. Figure 1 As shown, the thermal management system 100 also includes a fourth thermal management loop L4. This fourth thermal management loop L4 includes the aforementioned heater core 107, the coolant channels of the condenser 108, and the second water pump 109. This fourth thermal management loop L4 can be used to heat the passenger compartment. For example, this fourth thermal management loop L4 can be used to heat the passenger compartment when the range extender 101 is not operating. Alternatively, this fourth thermal management loop L4 can cooperate with the third thermal management loop L3 to heat the passenger compartment.

[0049] For example, Figure 1 As shown, the fourth thermal management loop L4 and the third thermal management loop L3 are connected via a first three-port interface device 110 and a second three-port interface device 111. Specifically, the first three-port interface device 110 and the second three-port interface device 111 are used to connect the second heat exchange channel of the heat exchanger 102 to the fourth thermal management loop L4 to form the third thermal management loop L3. For example, in the third thermal management loop L3, the inlet of the second heat exchange channel of the heat exchanger 102 is connected to the interface d of the first three-port interface device 110. 12 The outlet of the second heat exchange channel of the heat exchanger 102 is connected to the interface d of the second three-interface device 111. 12In the fourth thermal management loop L4, the interface d of the first three-interface device 110 is connected. 11 Interface d connected to the second third interface device 111 11 In the third thermal management loop L3 and the fourth thermal management loop L4, the interface d of the second third interface device 111 13 The cooling liquid inlet of the heater core 107 is connected. The cooling liquid outlet of the heater core 107 is connected to the cooling liquid channel inlet of the condenser 108. The cooling liquid channel outlet of the condenser 108 is connected to the interface d of the first three-interface device 110. 13 For example, the second water pump 109 can be provided between the outlet of the cooling liquid channel of the condenser 108 and the interface d of the first three-interface device 110. 13 between.

[0050] It is understood that the first three-port device 110 and the second three-port device 111 can be disposed at any location within the fourth thermal management loop L4, and this embodiment of the present application does not limit this. The second heat exchange channel of the heat exchanger 102 can be connected to the fourth thermal management loop L4 to form the third thermal management loop L3.

[0051] For example, the coolant in the third thermal management loop L3 and the fourth thermal management loop L4 can be driven by the second water pump 109. It is understandable that the second water pump 109 can be set at any position in the common path of the third thermal management loop L3 and the fourth thermal management loop L4, not limited to Figure 1 The position shown is not limited in this embodiment of the present application.

[0052] In one possible implementation, based on actual application requirements, water pumps with different heads are used in the first thermal management loop L1 and the third thermal management loop L3. For example, the head of the first water pump 104 is different from the head of the second water pump 109. For example, based on this, using the heat exchanger 102 to separate the first thermal management loop L1 and the third thermal management loop L3 can avoid the adverse effects of mismatching flow rates or pressures in the two loops due to the different water pump heads on the water pumps of each loop. For example, the water pump head and flow rate of the first thermal management loop L1 are higher, while the water pump head and flow rate of the third thermal management loop L3 are lower. Separating the two loops can avoid the adverse effects of mismatching pressures and flows in the two loops on the water pump of the third thermal management loop L3.

[0053] For example, the first three-port device 110 may be a three-way valve, and the second three-port device 111 may be a three-way connector, such as Figure 1Alternatively, for example, the first three-port device 110 may be a three-way connector, and the second three-port device 111 may be a three-way valve. It should be understood that the description of the first three-port device 110 and the second three-port device 111 herein is merely illustrative and does not constitute a limitation on the embodiments of the present application.

[0054] For example, Figure 1 As shown, the thermal management system 100 further includes a fifth thermal management loop L5. The fifth thermal management loop L5 may include a refrigerant channel of the condenser 108 and a compressor 112. The outlet of the compressor 112 may be connected to the inlet of the refrigerant channel of the condenser 108. 11 For example, since the outlet d of the refrigerant channel of the condenser 108 12 Other components may also be included between the inlet of the compressor 112, such as a refrigerant channel of a cooler (for example, see the following example). Figures 4 to 12 ), so the outlet d of the refrigerant channel of the condenser 108 12 A dashed line denotes the connection between the inlet of compressor 112 and the inlet of compressor 112. Compressor 112 is used to compress low-temperature, low-pressure refrigerant gas, producing high-temperature, high-pressure refrigerant gas as output, while also providing power for the circulation of the refrigerant in the fifth thermal management loop L5. For example, the fifth thermal management loop L5 is used to provide heat to the third thermal management loop L3 or the fourth thermal management loop L4.

[0055] In a possible implementation, the thermal management system 100 may further include a refrigerant container ( Figure 1 Not shown). Exemplarily, the refrigerant container can be, for example, a liquid storage tank or a gas-liquid separator. Exemplarily, the refrigerant container can be used to store or replenish the refrigerant in the fifth thermal management loop L5. Optionally, if the refrigerant container is a gas-liquid separator, it can also play a role in drying the refrigerant gas to achieve gas-liquid separation. It can be understood that the refrigerant container can also play other roles, not limited to the exemplary introduction here. Exemplarily, if the refrigerant container is a liquid storage tank, then the refrigerant container can be set at the outlet of the above-mentioned condenser 108. If the refrigerant container is a gas-liquid separator, then the refrigerant container can be set at the inlet of the above-mentioned compressor 112.

[0056] For example, in a specific implementation, the thermal management system 100 may further include a controller ( Figure 1 The controller can be used to control various components in the thermal management system 100 (such as valves, water pumps, condensers, and heat exchangers, etc., which are not limited in this embodiment of the present application).

[0057] In one possible implementation, the third thermal management loop L3 can be used to heat the passenger compartment of the vehicle. For example, in the first thermal management loop L1, driven by the first water pump 104, the coolant flows from the coolant inlet of the range extender 101 to the coolant outlet of the range extender 101, taking away the heat of the range extender 101 and obtaining high-temperature coolant. After the high-temperature coolant flows out of the range extender 101, it is heated from the interface d of the three-way connector 1032. 11 Inflow, from the interface d of the tee joint 1032 12 Flows out to the first heat exchange channel of the heat exchanger 102. The heat in the first heat exchange channel of the heat exchanger 102 is transferred to the second heat exchange channel of the heat exchanger 102 to complete the heat exchange. After the heat exchange in the heat exchanger 102 is completed, the coolant flows out from the first heat exchange channel of the heat exchanger 102 to the thermostat 1031. From the inlet d of the thermostat 1031 11 Flowing in, from the outlet d of the thermostat 1031 13 After flowing out, it flows back to the range extender 101 to form a circulation loop.

[0058] After heat from the first heat exchange channel of heat exchanger 102 is transferred to the second heat exchange channel of heat exchanger 102, driven by second water pump 109, the high-temperature coolant in the second heat exchange channel of heat exchanger 102 flows through second three-port device 111 to heater core 107. Heater core 107 heats the passenger compartment air, providing warmth for the passenger compartment. Furthermore, the coolant flows out of heater core 107, passes through the coolant channel of condenser 108 and first three-port device 110, and flows back to the second heat exchange channel of heat exchanger 102, forming a circulation loop.

[0059] In one possible implementation, during the process of achieving passenger compartment heating through the third thermal management loop L3, the flow rate through the second heat exchange channel of the heat exchanger 102 can be controlled by controlling the first three-port device 110 or the second three-port device 111. Figure 1 In the example shown, the first three-port device 110 is a three-way valve and the second three-port device 111 is a three-way connector. Figure 1 As can be seen from the interface d of the first three-interface device 110 13 The coolant can be fed in through the port d 11 and interface d 12 Then, you can adjust the output from the interface d 11 and interface d 12 For example, if the heat in the third thermal management loop L3 is required to be increased (for example, when the air conditioner temperature is increased), the flow rate through the second heat exchange channel of the heat exchanger 102 is required to be increased, so the flow rate from the interface d can be increased. 12Conversely, if the heat in the third thermal management loop L3 is required to be reduced (for example, when the air conditioner temperature is lowered), the flow through the second heat exchange channel of the heat exchanger 102 is required to be reduced, so the flow from the interface d 12 It is understandable that if the first three-port device 110 is a three-way connector and the second three-port device 111 is a three-way valve, the adjustment method is similar and will not be described in detail.

[0060] It will be understood that the above description of controlling the flow rate through the second heat exchange channel of the heat exchanger 102 is merely an example and does not constitute a limitation to the embodiments of the present application.

[0061] In one possible implementation, the vehicle's passenger compartment can be heated through the fourth thermal management loop L4. This implementation requires the cooperation of the fifth thermal management loop L5. For example, in the fifth thermal management loop L5, after the compressor 112 starts working, the compressor 112 outputs a high-temperature and high-pressure refrigerant. The high-temperature and high-pressure refrigerant is input into the refrigerant channel of the condenser 108 for heat exchange, and the heat is transferred to the coolant channel of the condenser 108. After heat exchange, the refrigerant is output from the refrigerant channel of the condenser 108 and flows back to the compressor 112.

[0062] After transferring heat to the coolant channels of condenser 108, the high-temperature coolant in the channels, driven by the second water pump 109, flows through the first and second three-port devices 110, 111 to the heater core 107. The heater core 107 heats the passenger compartment air, providing warmth for the cabin. Furthermore, the coolant flows out of the heater core 107 and back into the coolant channels of condenser 108, forming a circulation loop.

[0063] In another possible implementation, the third thermal management loop L3 and the fourth thermal management loop L4 can be used together to heat the passenger compartment of the vehicle. The implementation process of heating the passenger compartment through the third thermal management loop L3 can refer to the above introduction and will not be repeated here. Similarly, the implementation process of heating the passenger compartment through the fourth thermal management loop L4 can refer to the above introduction and will not be repeated here. In addition, optionally, under this implementation, the flow rate of the second heat exchange channel of the heat exchanger 102 can still be controlled by controlling the first three-interface device 110 or the second three-interface device 111. Please refer to the above introduction for details and will not be repeated here.

[0064] In one possible implementation, in the thermal management system 100, if the range extender generates excess heat, the heat can be dissipated through the second thermal management loop L2 to reduce the heat transferred to the third thermal management loop L3, thereby controlling the temperature of the coolant in the third thermal management loop L3. In addition, the impact of high temperature on the operating performance of the range extender can be reduced. For example, Figure 1 As shown, in a specific implementation, driven by the first water pump 104, part of the coolant flowing out of the range extender 101 flows to the heat exchanger 102, and the other part flows through the interface d of the tee joint 1032. 13 Flows to the first radiator 105. The first radiator 105 can dissipate heat into the air. The coolant flowing out of the first radiator 105 flows to the inlet d of the thermostat 1031. 12 Then, from the outlet d of the thermostat 1031 13 The flow returns to the range extender 101 to form a circulation loop. In this implementation process, the thermostat 1031 can realize flow control between the first thermal management loop L1 and the second thermal management loop L2.

[0065] For example, Figure 1 As shown, the thermostat 1031 can obtain the temperature of the coolant of the range extender 101. If the temperature is greater than or equal to the preset temperature value, then the inlet d of the thermostat 1031 can be controlled. 12 The opening of the thermostat 1031 is increased, and the inlet d 11 The opening is reduced. This increases the coolant flow to the first radiator 105, thereby achieving heat dissipation through the second thermal management loop L2. In addition, it also reduces the flow to the first heat exchange channel of the heat exchanger 102, thereby reducing the heat transferred to the third thermal management loop L3. Conversely, if the temperature is lower than the preset temperature value, then the inlet d of the thermostat 1031 can be controlled. 12 The opening of the control thermostat 1031 is reduced, and the inlet d 11 The opening of the heat exchanger 101 is enlarged. This reduces the coolant flow to the first radiator 105 and increases the flow to the first heat exchange channel of the heat exchanger 102. This allows the heat of the range extender 101 to be fully utilized for heating the passenger compartment, thus achieving full recovery and utilization of thermal energy.

[0066] In another possible implementation, the thermostat 1031 can be replaced by a combination of a three-way valve and a temperature sensor. Figure 2 As can be seen, the thermostat 1031 may include a three-way valve 10311 and a temperature sensor 10312. The temperature sensor 10312 may obtain the temperature of the coolant of the range extender 101. The temperature sensor 10312 may then convert the temperature into an electrical signal and send it to the controller in the thermal management system 100 ( Figure 2 The controller determines whether the temperature is greater than or equal to the preset temperature value, and then controls the interface d of the three-way valve 10311 according to the determination result. 11 and interface d 12 The opening of the thermostat 1031 is controlled to control the flow between the first thermal management loop L1 and the second thermal management loop L2. For specific control, please refer to the relevant description of the thermostat 1031, which will not be repeated here.

[0067] In a possible implementation, see for example Figure 3 As shown, the thermal management system 100 further includes a second water kettle 113 . The coolant in the third thermal management loop L3 and the fourth thermal management loop L4 can be replenished by the second water kettle 113 .

[0068] In one possible implementation, due to the needs of actual applications, kettles of different capacities are used in the first thermal management loop L1 and the third thermal management loop L3. For example, the capacities of the first kettle 106 and the second kettle 113 are different. Based on this, using the heat exchanger 102 to separate the first thermal management loop L1 and the third thermal management loop L3 can also avoid the problem of coolant leakage in the two kettles. In addition, it can also avoid the problem of coolant overflow in a kettle with a smaller capacity due to the injection of more coolant. For example, the capacity of the kettle of the first thermal management loop L1 (such as the first kettle 106) is larger, and the capacity of the kettle of the third thermal management loop L3 (such as the second kettle 113) is smaller. Separation can avoid overflow of the kettle of the third thermal management loop L3.

[0069] In a possible implementation, the structure of the thermal management system 100 provided in the embodiment of the present application can also be as follows: Figure 4 Compared with the above Figure 1 、 Figure 2 or Figure 3 The thermal management system 100 shown, Figure 4 The thermal management system 100 shown in the figure further includes a cooler 114 (with an expansion valve at the inlet), a nine-way valve 115, a battery 116, an electric driver 117, a second radiator 118, a third water pump 119, a fourth water pump 120, a one-way valve 121, a three-way valve 122 and an evaporator 123 (with an expansion valve at the inlet). The nine-way valve 115 includes nine interfaces, such as Figure 4 As shown in FIG, 1 to 9 represent the nine interfaces. The connection relationship of the cooler 114, the nine-way valve 115, the battery 116, the electric drive 117, the second radiator 118, the third water pump 119, the fourth water pump 120, the one-way valve 121 and the three-way valve 122 in the thermal management system 100 is shown in FIG. Figure 4 As shown, I will not elaborate on them one by one.

[0070] For example, the electric drive 117 is a device that drives the vehicle. The electric drive 117 may include, for example, a power distribution unit (PDU), a microcontroller unit (MCU), a modular drivetrain concept (MDC), an electric drive unit (EDU), or a motor. This embodiment of the present application is not limited to this.

[0071] Exemplarily, the second radiator 118 may be a low-temperature radiator, for example.

[0072] Exemplarily, the cooler 114 includes a refrigerant channel and a cooling liquid channel. Figure 4 As shown, the inlet of the refrigerant channel is d 41 , the exit is d 42 The inlet of the coolant channel is d 43 , the exit is d 44 .like Figure 4 As shown, the fifth thermal management loop L5 includes the refrigerant channel of the cooler 114. In one possible implementation, heat can be exchanged between the refrigerant passing through the refrigerant channel of the cooler 114 and the coolant passing through the coolant channel of the cooler 114. The refrigerant can remove heat from the coolant to dissipate heat from the battery 116 and / or the electric drive 117.

[0073] In addition, if Figure 4 As shown, the second kettle 113 for replenishing the coolant to the third thermal management loop L3 and the fourth thermal management loop L4 can be set as shown in FIG. Figure 4 This arrangement allows the second water bottle 113 to also be used to replenish the coolant in the heat dissipation circuit of the electric driver 117. For example, the coolant in the second water bottle 113 can be circulated to each coolant channel by controlling the connectivity of the interface in the nine-way valve 115.

[0074] In a specific implementation, the thermal management system 100 may further include a controller ( Figure 4 The controller can control the connection and closing of each port of the nine-way valve 115. By controlling the connection of the ports in the nine-way valve 115, various heating modes (such as heating the passenger compartment) or cooling modes can be achieved.

[0075] In one possible implementation, as described above Figure 4The thermal management system 100 shown can control the connection between port 1 and port 8 of the nine-way valve 115. Port 8 is connected to the coolant channel outlet of the condenser 108, and port 1 is connected to the inlet of the second water pump 109, that is, to port d of the first three-port device 110. 13 The coolant in the third thermal management loop L3 can then flow through the interface 8 and interface 1, and then be driven by the second water pump 109 through the second heat exchange channel of the heat exchanger 102 to the heater core 107. The heater core 107 heats the air in the passenger compartment to provide heating for the passenger compartment. The description of how the heat exchanger 102 transfers heat from the range extender 101 to the third thermal management loop L3 can be found in the previous introduction and will not be repeated here.

[0076] In a possible implementation, the structure of the thermal management system 100 provided in the embodiment of the present application can also be as follows: Figure 5 Compared with the above Figure 1 、 Figure 2 or Figure 3 The thermal management system 100 shown, Figure 5 The thermal management system 100 shown also includes a cooler 114 (with an expansion valve provided at the inlet), a five-way valve 124, a four-way valve 125, a battery 116, an electric driver 117, a second radiator 118, a third water pump 119, a fourth water pump 120, an evaporator 123 (with an expansion valve provided at the inlet) and a kettle 126. Among them, the five-way valve 124 includes five interfaces and the four-way valve 125 includes four interfaces. The connection relationship between the cooler 114, the five-way valve 124, the four-way valve 125, the battery 116, the electric driver 117, the second radiator 118, the third water pump 119, the fourth water pump 120 and the evaporator 123 in the thermal management system 100 is shown as follows: Figure 5 As shown, I will not elaborate on them one by one.

[0077] Exemplarily, the cooler 114 includes a refrigerant channel and a cooling liquid channel. Figure 4 As shown, the inlet of the refrigerant channel is d 41 , the exit is d 42 The inlet of the coolant channel is d 43 , the exit is d 44 .like Figure 4 As shown, the fifth thermal management loop L5 includes the refrigerant channel of the cooler 114. In one possible implementation, heat can be exchanged between the refrigerant passing through the refrigerant channel of the cooler 114 and the coolant passing through the coolant channel of the cooler 114. The refrigerant can remove heat from the coolant to dissipate heat from the battery 116 and / or the electric drive 117.

[0078] For example, in Figure 5In the thermal management system 100, although the overall connection structure is similar to the above Figure 4 There are some differences, but the connection method of transferring the heat of the range extender 101 to the first thermal management loop L1 and the third thermal management loop L3 of the thermal management system, and the second thermal management loop L2 for dissipating excess heat is the same as Figure 4 The same applies to the thermal management system 100 shown, which will not be described in detail.

[0079] In addition, if Figure 5 As shown, the second kettle 113 for replenishing coolant to the third thermal management loop L3 and the fourth thermal management loop L4, and the second water pump 109 for driving the same can be arranged as follows: Figure 5 As you can understand, Figure 5 What is shown is merely an example and does not constitute a limitation to the embodiments of the present application.

[0080] In a specific implementation, the thermal management system 100 may further include a controller ( Figure 5 (not shown). The controller can control the connection and closing of each port of the five-way valve 124 and the four-way valve 125. By controlling the connection of the ports in the five-way valve 124 and / or the four-way valve 125, various heating modes (such as heating the passenger compartment) or cooling modes can be achieved.

[0081] In one possible implementation, as described above Figure 5 The thermal management system 100 shown can control the connection between the port d1 and the port d3 of the five-way valve 124. The port d3 is connected to the outlet of the second water pump 109 and is also connected to the coolant outlet of the heater core 107. The port d1 is connected to the coolant channel inlet of the condenser 108 and is also connected to the port d3 of the first three-port device 110. 13 Then, the third thermal management loop L3 can be connected to the interface d3 and the interface d1 to form a circulation loop to achieve passenger compartment heating. The description of how the heat exchanger 102 transfers heat from the range extender 101 to the third thermal management loop L3 can be referred to the previous introduction and will not be repeated here.

[0082] In a possible implementation, the structure of the thermal management system 100 provided in the embodiment of the present application can also be as follows: Figure 6 Compared with the above Figure 1 、 Figure 2 or Figure 3 The thermal management system 100 shown, Figure 6The thermal management system 100 shown also includes a cooler 114 (with an expansion valve at the inlet), a nine-way valve 115, a battery 116, an electric driver 117, a second radiator 118, a third water pump 119, a fourth water pump 120, an evaporator 123 (with an expansion valve at the inlet) and a kettle 126. Among them, the nine-way valve 115 includes nine interfaces. The connection relationship between the cooler 114, the five-way valve 124, the four-way valve 125, the battery 116, the electric driver 117, the second radiator 118, the third water pump 119, the fourth water pump 120, the evaporator 123 and the kettle 126 in the thermal management system 100 is shown as follows: Figure 6 As shown, I will not elaborate on them one by one.

[0083] Exemplarily, the cooler 114 includes a refrigerant channel and a cooling liquid channel. Figure 6 As shown, the inlet of the refrigerant channel is d 41 , the exit is d 42 The inlet of the coolant channel is d 43 , the exit is d 44 .like Figure 6 As shown, the fifth thermal management loop L5 includes the refrigerant channel of the cooler 114. In one possible implementation, heat can be exchanged between the refrigerant passing through the refrigerant channel of the cooler 114 and the coolant passing through the coolant channel of the cooler 114. The refrigerant can remove heat from the coolant to dissipate heat from the battery 116 and / or the electric drive 117.

[0084] For example, in Figure 6 In the thermal management system 100, although the overall connection structure is similar to the above Figure 4 There are some differences, but the connection method of transferring the heat of the range extender 101 to the first thermal management loop L1 and the third thermal management loop L3 of the thermal management system, and the second thermal management loop L2 for dissipating excess heat is the same as Figure 4 The same applies to the thermal management system 100 shown, which will not be described in detail.

[0085] In addition, if Figure 6 As shown, the second kettle 113 for replenishing coolant to the third thermal management loop L3 and the fourth thermal management loop L4, and the second water pump 109 for driving the same can be arranged as follows: Figure 6 As you can understand, Figure 6 What is shown is merely an example and does not constitute a limitation to the embodiments of the present application.

[0086] In a specific implementation, the thermal management system 100 may further include a controller ( Figure 6The controller can control the connection and closing of each port of the nine-way valve 115. By controlling the connection of the ports in the nine-way valve 115, various heating modes (such as heating the passenger compartment) or cooling modes can be achieved.

[0087] In one possible implementation, as described above Figure 6 The thermal management system 100 shown can control the connection between port 1 and port 7 of the nine-way valve 115. Port 1 is connected to the outlet of the second water pump 109 and is also connected to the coolant outlet of the heater core 107. Port 7 is connected to the coolant channel inlet of the condenser 108 and is also connected to port d of the first three-port device 110. 13 Then, the third thermal management loop L3 can be connected through the interface 1 and the interface 7 to form a circulation loop to achieve passenger compartment heating. The description of the heat exchanger 102 transferring heat from the range extender 101 to the third thermal management loop L3 can be referred to the above introduction and will not be repeated here.

[0088] It is understandable that the above Figures 4 to 6 The structure of the thermal management system shown is only an example and does not constitute a limitation on the embodiments of the present application. In a specific implementation, the solution of the present application can also be applied to more other thermal management system structures. In addition, the above-mentioned connection between the interfaces in the multi-way valve (such as the above-mentioned nine-way valve 115, five-way valve 124, and four-way valve 125) is also only an example. In a specific implementation, for example, or the circulation of the above-mentioned third thermal management loop L3 can also be achieved through the connection between other different interfaces, or it can also include the connection of other interfaces to achieve various heat dissipation functions, and the embodiments of the present application do not limit this.

[0089] In a possible implementation, the third thermal management loop L3 (e.g. Figures 1 to 6 The thermal management system 100 shown in FIG. 1 may further include a heater. For example, the heater may be a positive temperature coefficient (PTC) heater, etc., and the present application embodiment does not limit this. For example, the heater may be set at any position in the third thermal management loop L3. In one possible implementation, the heater may be set at the inlet of the warm air core 107 in the third thermal management loop L3. For ease of understanding, for example, you can refer to FIG. Figure 7 , Figure 7 With the above Figure 4 The thermal management system 100 shown in the figure is used as an example to illustrate the position of the heater in the third thermal management loop L3. The thermal management systems 100 of other structures are similar and will not be described in detail.

[0090] In one possible implementation, the heater can be used to heat the coolant when the range extender 101 stops operating or when the range extender 101 is insufficient to heat the passenger compartment and / or the battery 116 .

[0091] In a possible implementation, the third thermal management loop L3 may further include a battery. The third thermal management loop L3 may also be used to heat the battery. For ease of understanding, see for example Figures 8 to 10 shown. Figure 8 With the above Figure 4 The thermal management system 100 is shown as an example. Figure 9 With the above Figure 5 The thermal management system 100 is shown as an example. Figure 10 With the above Figure 6 The thermal management system 100 is shown as an example.

[0092] For example, Figure 8 The thermal management system 100 shown can control the connection between interface 1 and interface 4 of the nine-way valve 115, as well as the connection between interface 7 and interface 8 of the nine-way valve 115. This allows the coolant flowing out of the coolant outlet of the condenser 108 to pass through interfaces 8 and 7 of the nine-way valve 115, and then, driven by the third water pump 119, flow to the coolant channel of the battery 116. After flowing out of the coolant channel of the battery 116, it flows through interfaces 4 and 1 of the nine-way valve 115 to the second water pump 109. It then flows through the first three-interface device 110, the second heat exchange channel of the heat exchanger 102, the second three-interface device 111, and the heater core 107 to the coolant channel inlet of the condenser 108, forming a circulation loop. It can be seen that in this process, the heat transferred from the range extender 101 to the third thermal management loop L3 can also be used to heat the battery 116.

[0093] In a possible implementation, in the above Figure 8 In the third thermal management loop L3 shown, the vehicle's air conditioning unit's foot damper can be closed. In this case, heater core 107 is inoperative, meaning no warm air is supplied to the passenger compartment. Coolant bypasses heater core 107, bypassing it. Third thermal management loop L3 is then used solely to heat battery 116.

[0094] For example, Figure 9The illustrated thermal management system 100 can control the connection between ports d3 and d4 of the five-way valve 124, and between ports d3 and d2 of the four-way valve 125. This allows the coolant flowing out of the heater core 107 to pass through the kettle 113 and, driven by the second water pump 109, flow through ports d3 and d4 of the five-way valve 124 to the coolant channel of the battery 116. After flowing out of the coolant channel of the battery 116, it flows through ports d3 and d2 of the four-way valve 125 to the coolant channel of the condenser 108. After flowing out of the coolant channel of the condenser 108, it flows back to the heater core 107 through the first three-port device 110, the second heat exchange channel of the heat exchanger 102, and the second three-port device 111, forming a circulation loop. It can be seen that in this process, the heat transferred from the range extender 101 to the third thermal management loop L3 can also be used to heat the battery 116.

[0095] Similarly, in one possible implementation, in the above Figure 9 In the third thermal management loop L3 shown, the vehicle's air conditioning unit's foot damper can be closed. In this case, heater core 107 is inoperative, meaning no warm air is supplied to the passenger compartment. Coolant bypasses heater core 107, bypassing it. Third thermal management loop L3 is then used solely to heat battery 116.

[0096] For example, Figure 10 The thermal management system 100 shown can control the connection between interface 1 and interface 3 of the nine-way valve 115, as well as the connection between interface 2 and interface 7 of the nine-way valve 115. This allows the coolant flowing out of the heater core 107 to pass through the kettle 113 and, driven by the second water pump 109, flow through interfaces 1 and 3 of the nine-way valve 115 to the coolant channel of the battery 116. After flowing out of the coolant channel of the battery 116, it flows through interfaces 2 and 7 of the nine-way valve 115 to the coolant channel of the condenser 108. After flowing out of the coolant channel of the condenser 108, it flows back to the heater core 107 through the first three-interface device 110, the second heat exchange channel of the heat exchanger 102, and the second three-interface device 111 to form a circulation loop. It can be seen that in this process, the heat transferred from the range extender 101 to the third thermal management loop L3 can also be used to heat the battery 116.

[0097] Similarly, in one possible implementation, in the above Figure 10 In the third thermal management loop L3 shown, the vehicle's air conditioning unit's foot damper can be closed. In this case, heater core 107 is inoperative, meaning no warm air is supplied to the passenger compartment. Coolant bypasses heater core 107, bypassing it. Third thermal management loop L3 is then used solely to heat battery 116.

[0098] In another possible implementation, different from the above Figure 8The battery heating circuit can also be implemented as follows: Figure 11 Specifically, Figure 11 The illustrated thermal management system 100 also includes a battery heating loop L6 .

[0099] For example, Figure 11 The thermal management system 100 shown is different from the above Figure 4 , Figure 11 The interface 4 and the interface 7 of the nine-way valve 115 are also controlled to be connected, and the interface d of the three-way valve 122 is controlled to be connected. 13 The cooling liquid flowing out of the heater core 107 can pass through the interface d of the three-way valve 122. 12 The other part can flow to the coolant channel of the condenser 108. 13 Flows to the battery heating circuit L6. Specifically, it can pass through the interface d of the three-way valve 122 13 Flows to the third water pump 119. And driven by the third water pump 119, it flows to the coolant channel of the battery 116. After flowing out of the coolant channel of the battery 116, it flows to the one-way valve 121 through the interface 4 and interface 7 of the nine-way valve 115. After flowing out of the one-way valve 121, it flows to the coolant channel of the condenser 108. Then it flows back to the warm air core 107 through the interface 8 and interface 1 of the nine-way valve 115, the second water pump 109, the first three-interface device 110, the second heat exchange channel of the heat exchanger 102, and the second three-interface device 111 to form a circulation loop. It can be seen that in this process, the heat transferred from the range extender 101 can also be used to heat the battery 116.

[0100] Similarly, in one possible implementation, in the above Figure 11 In the illustrated implementation, the vehicle's air conditioning unit's foot damper can be closed. In this case, heater core 107 is inoperative, meaning no warm air is blown to the passenger compartment. Coolant bypasses heater core 107, allowing heat to be supplied solely to battery 116.

[0101] For example, the above Figures 8 to 11 The illustrated implementation of utilizing the heat of the range extender 101 to heat the battery is merely an example and does not constitute a limitation to the embodiments of the present application.

[0102] Furthermore, it is understood that in the above Figures 4 to 11The description of the thermal management system 100 primarily illustrates the implementation of a partial passenger compartment heating mode and a battery cooling mode. However, in a specific implementation, a controller can be connected to various valves in the thermal management system 100 and, by controlling the opening and closing of each valve, implement any of the following modes: simultaneous passenger compartment and battery cooling, separate passenger compartment cooling, separate battery cooling, battery cooling and passenger compartment heating, natural battery cooling, automatic driver cooling, simultaneous passenger compartment and battery heating, battery heating and passenger compartment dehumidification, separate passenger compartment heating, separate battery heating, and vehicle-wide dehumidification. This design allows electric vehicles to freely switch between cooling and heating modes for one or more of the passenger compartment, battery, and driver, helping to meet the diverse needs of various users and enhance the driving experience.

[0103] In a possible implementation, the thermal management system 100 may further include a turbocharger and / or a water-cooled intercooler. The heat dissipation of the two may be achieved through a third radiator. For ease of understanding, please refer to the example Figure 12 . Figure 12 Is a combination of the above Figure 4 The thermal management system 100 shown in FIG. 1 is taken as an example. It can be seen that the thermal management system 100 may also include a turbocharger 127, a water-cooled intercooler 128, a third radiator 129, a fifth water pump 130 and a kettle 131. Figure 12 The connection shown can form a heat dissipation circuit for the turbocharger 127 and the water-cooled intercooler 128. The heat dissipation circuit is driven by the fifth water pump 130 and is supplemented with coolant by the kettle 131.

[0104] It is understandable that the above Figure 12 The figure is only an example. The same is true for other thermal management systems 100 provided in the embodiments of the present application, and they are not described in detail here.

[0105] It is understood that the components included in each circuit in the various possible thermal management systems 100 shown above are merely examples and do not constitute a limitation on the embodiments of the present application. In specific implementations, each circuit may include more or fewer components, and the embodiments of the present application do not impose any limitation on this.

[0106] The present application also provides a vehicle, for example, Figure 13 The vehicle 1300 may include the thermal management system 100 described in any of the possible embodiments described above. For details, please refer to the above introduction and will not be repeated here.

[0107] In summary, the thermal management system and vehicle provided in the embodiments of the present application can reduce the vehicle's power consumption and increase the cruising range while ensuring the heating needs of the passenger compartment or battery heating.

[0108] It should be understood that in the various embodiments of the present application, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0109] It will also be understood that the term “comprise” (also known as “includes,” “including,” “comprises,” and / or “comprising”) when used in this specification specifies the presence of stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0110] It should also be understood that references throughout this specification to "one embodiment," "an embodiment," or "one possible implementation" mean that specific features, structures, or characteristics associated with that embodiment or implementation are included in at least one embodiment of the present application. Therefore, the appearance of "in one embodiment," "in an embodiment," or "one possible implementation" throughout this specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A thermal management system for a vehicle, characterized in that: The thermal management system includes a first thermal management loop, a second thermal management loop and a third thermal management loop; The first thermal management circuit includes a range extender, a first heat exchange channel of a heat exchanger, and a temperature regulating device; The second thermal management circuit includes the range extender, a radiator, and the temperature regulating device; the temperature regulating device is used to divide the coolant into the first thermal management circuit and the second thermal management circuit based on the temperature of the coolant of the range extender; The third thermal management circuit includes the second heat exchange channel of the heat exchanger and a heater core; the heat exchanger transfers heat from the first thermal management circuit to the third thermal management circuit through the first heat exchange channel and the second heat exchange channel, and the third thermal management circuit is used to heat the passenger compartment of the vehicle.

2. The thermal management system according to claim 1, characterized in that The first thermal management circuit further includes a first water pump, and the third thermal management circuit further includes a second water pump. The lift of the first water pump is different from the lift of the second water pump.

3. The thermal management system according to claim 1 or 2, characterized in that: The coolant in the first thermal management loop is provided by a first water kettle, and the coolant in the third thermal management loop is provided by a second water kettle. The capacities of the first water kettle and the second water kettle are different.

4. The thermal management system according to any one of claims 1 to 3, characterized in that: The thermal management system includes a fourth thermal management circuit, the fourth thermal management circuit includes the heater core, and the fourth thermal management circuit is used to heat the passenger compartment; The thermal management system includes a first three-interface device and a second three-interface device, and the first three-interface device and the three-interface device are used to connect the second heat exchange channel to the fourth thermal management loop to form the third thermal management loop.

5. The thermal management system according to claim 4, characterized in that: The first three-port device or the second three-port device is a first three-way connector or a first three-way valve.

6. The thermal management system according to any one of claims 1 to 5, characterized in that: The third thermal management loop also includes a battery, and the third thermal management loop is further used to heat the battery.

7. The thermal management system according to claim 6, characterized in that: When the foot damper of the air conditioner of the vehicle is closed, the third thermal management circuit is used solely for heating the battery.

8. The thermal management system according to any one of claims 1 to 5, characterized in that: The thermal management system further includes a battery heating circuit, which includes a battery and is used to heat the battery; the coolant in the battery heating circuit is the coolant diverted from the third thermal management circuit.

9. The thermal management system according to any one of claims 1 to 8, characterized in that: The temperature regulating device includes a three-way joint and a thermostat, or the temperature regulating device includes a three-way valve and a temperature sensor.

10. The thermal management system according to claim 4 or 5, characterized in that: The first interface of the first three-interface device is connected to the first interface of the second three-interface device, the second interface of the first three-interface device is connected to the inlet of the second heat exchange channel of the heat exchanger, the second interface of the second three-interface device is connected to the outlet of the second heat exchange channel of the heat exchanger, the third interface of the first three-interface device is connected to the coolant outlet of the heater core, and the third interface of the second three-interface device is connected to the coolant inlet of the heater core.

11. The thermal management system according to claim 9, wherein: If the temperature regulating device includes the three-way joint and the thermostat; The first interface of the three-way joint is connected to the coolant outlet of the range extender, the second interface of the three-way joint is connected to the inlet of the first heat exchange channel of the heat exchanger, and the third interface of the three-way joint is connected to the coolant inlet of the radiator; The first inlet of the thermostat is connected to the outlet of the first heat exchange channel of the heat exchanger, the second inlet of the thermostat is connected to the coolant outlet of the radiator, and the outlet of the thermostat is connected to the coolant inlet of the range extender.

12. A vehicle, characterized in that: The vehicle comprises a thermal management system according to any one of claims 1 to 11.

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