Thermal management system, control method, electronic device, medium, and vehicle

Abstract

The present application belongs to the technical field of thermal management, and discloses a thermal management system, a control method, an electronic device, a medium and a vehicle. The thermal management system comprises a battery circuit, an electric drive circuit and a heat pump circuit. The electric drive circuit is coupled to the battery circuit, and the heat pump circuit is coupled to the electric drive circuit and the battery circuit. The control method of the thermal management system is used for controlling the above thermal management system. The electronic device can execute the above control method. The medium stores a program that can execute the above control method. The vehicle comprises the above thermal management system. In the thermal management system of the embodiment, the heat generated by the electric drive assembly and the battery during operation can be fully utilized.

Description

Technical Field

[0001] This invention relates to the field of thermal management technology, and more particularly to a thermal management system, control method, electronic device, medium, and vehicle. Background Technology

[0002] A heat pump in which the refrigerant directly exchanges heat with the indoor air is called a direct heat pump. Direct heat pumps have advantages such as simple structure, high energy efficiency, and low maintenance costs. Compared to indirect heat pumps, direct heat pumps eliminate the secondary heat exchange stage, effectively reducing energy loss and thus improving energy efficiency. Furthermore, the rapid response characteristics of direct heat pumps make them more efficient in regulating indoor temperature.

[0003] However, in existing direct heat pump systems, the outdoor heat exchanger and related refrigerant valves and pipes have a complex structure, occupy a large space, and the electric drive circuit and battery circuit are independent of each other, resulting in low utilization of the heat generated by the electric drive components and battery during operation. Summary of the Invention

[0004] The purpose of this invention is to provide a thermal management system, control method, electronic device, medium, and vehicle that can make full use of the heat generated during the operation of electric drive components and batteries.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Thermal management system, including:

[0007] Battery circuit;

[0008] The electric drive circuit is coupled to the battery circuit.

[0009] The heat pump circuit is coupled to the electric drive circuit and the battery circuit.

[0010] Preferably, the heat pump circuit is coupled to the electric drive circuit through the first heat exchanger. The heat pump circuit is equipped with an internal evaporator and an internal condenser, with the internal condenser connected in parallel to the first heat exchanger.

[0011] Preferably, a first valve body is provided in the heat pump circuit, and the first valve body is located upstream of the internal condenser.

[0012] The first valve body is provided with a first valve first port, a first valve second port and a first valve third port. The first valve first port is connected to the fluid outlet of the internal evaporator, the first valve second port is connected to the fluid inlet of the first heat exchanger and the first valve third port is connected to the fluid inlet of the internal condenser.

[0013] Preferably, a one-way valve is provided in the heat pump circuit. The one-way valve is located downstream of the internal condenser, and the internal condenser is connected to the fluid outlet of the first heat exchanger through the one-way valve.

[0014] Preferably, the electric drive circuit is equipped with an electric drive assembly and an electric drive radiator connected in series. In cooling mode, the internal evaporator dissipates heat through the electric drive radiator.

[0015] Preferably, in the electric drive circuit, the first heat exchanger and the electric drive assembly are connected in parallel.

[0016] Preferably, the electric drive circuit is provided with a second valve body, which is provided with a second valve first interface, a second valve second interface, and a second valve third interface.

[0017] The first port of the second valve is connected to the fluid outlet of the first heat exchanger, the second port of the second valve is connected to the fluid outlet of the electric drive assembly, and the third port of the second valve is connected to the fluid inlet of the electric drive radiator.

[0018] Preferably, in the electric drive circuit, the first heat exchanger and the electric drive assembly are connected in series.

[0019] Preferably, the internal evaporator and internal condenser are located in the air conditioning unit, which also contains an air conditioning heater.

[0020] Preferably, the heat pump circuit is equipped with a liquid storage tank, and the fluid inlet of the internal evaporator, the fluid outlet of the internal condenser and the fluid outlet of the first heat exchanger are connected through the liquid storage tank.

[0021] Preferably, the electric drive circuit is equipped with an expansion tank, and the electric drive circuit is equipped with an electric drive assembly and an electric drive radiator connected in series, with the expansion tank connected to the fluid inlet of the electric drive assembly.

[0022] Preferably, the heat pump circuit is coupled to the battery circuit and / or the electric drive circuit via a second heat exchanger.

[0023] Preferably, the battery circuit includes a first battery sub-circuit and a second battery sub-circuit. The first battery sub-circuit is provided with a second heat exchanger, and the second battery sub-circuit is provided with a battery. The first battery sub-circuit is coupled to the second battery sub-circuit.

[0024] Preferably, the first battery sub-circuit is coupled to the second battery sub-circuit via a third valve body.

[0025] Preferably, the third valve body is provided with a third valve first interface, a third valve second interface, a third valve third interface and a third valve fourth interface;

[0026] The fluid outlet of the second heat exchanger is connected to the fluid inlet of the battery;

[0027] The first port of the third valve is connected to the fluid outlet of the battery;

[0028] The second port of the third valve is connected to the fluid inlet of the battery;

[0029] The third valve's third port is connected to the fluid inlet of the second heat exchanger;

[0030] The fourth port of the third valve is connected to the fluid outlet of the second heat exchanger.

[0031] Preferably, the third valve body has three operating modes: third valve mode 1, third valve mode 2, third valve mode 3, third valve mode 4, third valve mode 5, third valve mode 6, and third valve mode 7.

[0032] In the third valve operating mode, the second port of the third valve is connected to the third port of the third valve, while the first port and the fourth port of the third valve are closed.

[0033] In the second working mode of the third valve, the first and second ports of the third valve are proportionally adjusted and connected to the third port of the third valve, while the fourth port of the third valve is closed.

[0034] In the third valve operating mode 3, the first port of the third valve is connected to the third port of the third valve, while the second port and the fourth port of the third valve are closed.

[0035] In the third valve operating mode four, the third port and the fourth port of the third valve are proportionally adjusted and connected to the second port of the third valve, while the first port of the third valve is closed.

[0036] In the fifth working mode of the third valve, the second port of the third valve is connected to the fourth port of the third valve, and the first port of the third valve and the third port of the third valve are closed.

[0037] In the third valve operating mode six, the first and second ports of the third valve are proportionally adjusted and connected to the fourth port of the third valve, while the third port of the third valve is closed.

[0038] In the third valve operating mode seven, the first port of the third valve is connected to the fourth port of the third valve, while the second port of the third valve and the third port of the third valve are closed.

[0039] Preferably, the electric drive circuit is coupled to the battery circuit via a fourth valve body.

[0040] Preferably, the electric drive circuit is provided with an electric drive assembly and an electric drive heat sink connected in series, and the fourth valve body is provided with a fourth valve first interface, a fourth valve second interface, a fourth valve third interface and a fourth valve fourth interface.

[0041] The first port of the fourth valve is connected to the fluid inlet of the electric drive assembly;

[0042] The second port of the fourth valve is connected to the fluid inlet of the second heat exchanger;

[0043] The third port of the fourth valve is connected to the fluid outlet of the electric drive radiator;

[0044] The fourth valve's fourth port is connected to the fluid outlet of the electric drive assembly, the fluid inlet of the electric drive radiator, and the fluid outlet of the second heat exchanger.

[0045] Preferably, the fourth valve body has four working modes: fourth valve working mode one, fourth valve working mode two, fourth valve working mode three, fourth valve working mode four, and fourth valve working mode five.

[0046] In the fourth valve operating mode, the first port of the fourth valve is connected to the third port of the fourth valve, and the second port of the fourth valve and the fourth port of the fourth valve are closed.

[0047] In the second working mode of the fourth valve, the ratio of the second and third ports of the fourth valve is adjustable, both of which are connected to the first port of the fourth valve, and the fourth port of the fourth valve is closed.

[0048] In the third working mode of the fourth valve, the first port of the fourth valve is connected to the second port of the fourth valve, while the third port of the fourth valve and the fourth port of the fourth valve are closed.

[0049] In the fourth working mode of the fourth valve, the first port of the fourth valve is connected to the fourth port of the fourth valve, while the second port and the third port of the fourth valve are closed.

[0050] In the fifth working mode of the fourth valve, the ratio of the second port and the fourth port of the fourth valve is adjustable, both of which are connected to the first port of the fourth valve, while the third port of the fourth valve is closed.

[0051] Preferably, a battery heater is provided in the battery circuit, and the battery heater and the second heat exchanger are connected in series.

[0052] A control method for a thermal management system, used to control the thermal management system, which includes a battery circuit, an electric drive circuit, and a heat pump circuit. The electric drive circuit is coupled to the battery circuit, and the heat pump circuit is coupled to both the electric drive circuit and the battery circuit. The control method for the thermal management system includes:

[0053] Responding to instructions in response to the target operating mode;

[0054] Control the battery circuit, electric drive circuit, and heat pump circuit to make the thermal management system operate in the target operating mode.

[0055] Preferably, the target operating mode includes at least one of the following: mode 1, mode 2, mode 3, mode 4, mode 5, mode 6, mode 7, mode 8, mode 9, and mode 10.

[0056] In response to the command of the first mode, the operation of the electric drive circuit and the heat pump circuit is controlled, and the internal evaporator in the heat pump circuit dissipates heat through the electric drive circuit;

[0057] In response to the command of the second mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery in the battery circuit transfers heat to the electric drive circuit through the heat pump circuit, and the electric drive circuit dissipates heat.

[0058] In response to the command of the third mode, the operation of the electric drive circuit is controlled, and the electric drive components in the electric drive circuit are cooled by the electric drive heat sink;

[0059] In response to the command of the fourth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The internal evaporator in the heat pump circuit is cooled through the electric drive circuit. The battery in the battery circuit transfers heat to the electric drive circuit through the heat pump circuit, and is cooled through the electric drive circuit.

[0060] In response to the instructions of the fifth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent. The battery circuit transfers the heat generated by the operation of the battery heater to the internal condenser in the heat pump circuit, and the electric drive components in the electric drive circuit dissipate heat through the electric drive radiator.

[0061] In response to the command of the sixth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent. The battery circuit transfers the heat generated by the battery operation to the internal condenser in the heat pump circuit, and the electric drive components in the electric drive circuit dissipate heat through the electric drive radiator.

[0062] In response to the instructions of the seventh mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are coupled. The battery circuit transfers the heat generated by the battery operation to the internal condenser in the heat pump circuit, and the electric drive circuit transfers the heat generated by the operation of the electric drive components to the internal condenser in the heat pump circuit.

[0063] In response to the command of the eighth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent. The battery circuit transfers the heat generated by the operation of the battery heater to the internal condenser in the battery and heat pump circuit. The electric drive components in the electric drive circuit dissipate heat through the electric drive radiator.

[0064] In response to the instructions of the ninth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent of each other. The battery circuit transfers the heat generated by the operation of the battery heater to the battery, and the electric drive circuit transfers the heat generated by the operation of the electric drive components to the internal condenser in the heat pump circuit.

[0065] In response to the instructions of the tenth mode, the operation of the battery circuit and the electric drive circuit is controlled. The battery circuit and the electric drive circuit are coupled, and the electric drive circuit transfers the heat generated by the operation of the electric drive components to the battery in the battery circuit.

[0066] As a preferred option, in the first mode:

[0067] In the electric drive circuit, the first port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the third port of the fourth valve. Fluid flows between the first heat exchanger and the electric drive radiator.

[0068] In the heat pump circuit, the first port of the first valve is connected to the second port of the first valve, and fluid flows between the first heat exchanger and the internal evaporator.

[0069] As a preferred option, the second mode is:

[0070] In the battery circuit, the first port of the third valve is connected to the third port of the third valve, and fluid flows between the second heat exchanger and the battery.

[0071] In the electric drive circuit, the first port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the third port of the fourth valve. Fluid flows between the first heat exchanger and the electric drive radiator.

[0072] In the heat pump circuit, the first port of the first valve is connected to the second port of the first valve, and fluid flows between the first heat exchanger and the second heat exchanger.

[0073] As a preferred option, the third mode is:

[0074] In the electric drive circuit, the second port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the third port of the fourth valve. Fluid flows between the electric drive assembly and the electric drive heat sink.

[0075] As a preferred option, in the fourth mode:

[0076] In the battery circuit, the first port of the third valve is connected to the third port of the third valve, and fluid flows between the second heat exchanger and the battery.

[0077] In the electric drive circuit, the first port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the third port of the fourth valve. Fluid flows between the first heat exchanger and the electric drive radiator.

[0078] In the heat pump circuit, the first port of the first valve is connected to the second port of the first valve, and the fluid flowing out from the internal evaporator and the second heat exchanger merges and flows to the first heat exchanger.

[0079] As a preferred option, in mode 5:

[0080] In the battery circuit, the battery heater is turned on, the second port of the third valve is connected to the third port of the third valve, and the fluid flows between the second heat exchanger and the battery heater.

[0081] In the electric drive circuit, the second port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the third port of the fourth valve. Fluid flows between the electric drive assembly and the electric drive heat sink.

[0082] In the heat pump circuit, the first port of the first valve is connected to the third port of the first valve, and the fluid flows between the internal condenser and the second heat exchanger.

[0083] As a preferred option, in mode six:

[0084] In the battery circuit, the first port of the third valve is connected to the third port of the third valve, and fluid flows between the second heat exchanger and the battery.

[0085] In the electric drive circuit, the second port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the third port of the fourth valve. Fluid flows between the electric drive assembly and the electric drive heat sink.

[0086] In the heat pump circuit, the first port of the first valve is connected to the third port of the first valve, and the fluid flows between the internal condenser and the second heat exchanger.

[0087] As a preferred option, in mode seven:

[0088] In the battery circuit, the first port of the third valve is connected to the third port of the third valve, and fluid flows between the second heat exchanger and the battery.

[0089] In the electric drive circuit, the second port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the second port of the fourth valve. Fluid flows between the electric drive assembly and the second heat exchanger.

[0090] In the heat pump circuit, the first port of the first valve is connected to the third port of the first valve, and the fluid flows between the internal condenser and the second heat exchanger.

[0091] As a preferred option, in mode 8:

[0092] In the battery circuit, the battery heater is turned on, the first port of the third valve is connected to the third port of the third valve, and the fluid flows between the second heat exchanger, the battery heater and the battery.

[0093] In the electric drive circuit, the second port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the third port of the fourth valve. Fluid flows between the electric drive assembly and the electric drive heat sink.

[0094] In the heat pump circuit, the first port of the first valve is connected to the third port of the first valve, and the fluid flows between the internal condenser and the second heat exchanger.

[0095] As a preferred option, in mode 9:

[0096] In the battery circuit, the battery heater is turned on, the first port of the third valve is connected to the fourth port of the third valve, and fluid flows between the battery heater and the battery.

[0097] In the electric drive circuit, the second port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the second port of the fourth valve. Fluid flows between the electric drive assembly and the second heat exchanger.

[0098] In the heat pump circuit, the first port of the first valve is connected to the third port of the first valve, and the fluid flows between the internal condenser and the second heat exchanger.

[0099] As a preferred option, in the tenth mode:

[0100] In the battery circuit, the first port of the third valve is connected to the third port of the third valve, and fluid flows between the second heat exchanger and the battery.

[0101] In the electric drive circuit, the second port of the second valve is connected to the third port of the second valve, and the first port of the fourth valve is connected to the second port of the fourth valve. Fluid flows between the electric drive assembly and the second heat exchanger.

[0102] Electronic devices, including:

[0103] At least one processor; and

[0104] A memory that is communicatively connected to at least one processor; wherein,

[0105] The memory stores a computer program that can be executed by at least one processor, which enables the at least one processor to perform the control method of the thermal management system described above.

[0106] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method of the aforementioned thermal management system.

[0107] Vehicles, including the aforementioned thermal management system.

[0108] The beneficial effects of this invention are:

[0109] Based on the coupling of the electric drive circuit to the battery circuit, the heat pump circuit is coupled to both the electric drive circuit and the battery circuit. This allows the heat generated by the electric drive components and the battery during operation to be fully utilized. Furthermore, the heat pump circuit and the battery circuit can dissipate heat through the electric drive circuit, improving the waste heat utilization efficiency of the electric drive components and the battery and reducing ineffective energy loss. Attached Figure Description

[0110] Figure 1 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention;

[0111] Figure 2 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the first mode;

[0112] Figure 3 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the second mode;

[0113] Figure 4 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the third mode;

[0114] Figure 5 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the fourth mode;

[0115] Figure 6 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in its fifth mode;

[0116] Figure 7 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the sixth mode;

[0117] Figure 8 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the seventh mode;

[0118] Figure 9 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the eighth mode;

[0119] Figure 10 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the ninth mode;

[0120] Figure 11 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the tenth mode;

[0121] Figure 12 A schematic diagram of the thermal management system described in Embodiment 2 of the present invention;

[0122] Figure 13 A schematic diagram of the thermal management system described in Embodiment 4 of the present invention;

[0123] Figure 14 A schematic diagram of the thermal management system described in Embodiment 5 of the present invention.

[0124] In the picture:

[0125] 1. First heat exchanger;

[0126] 2. Internal evaporator;

[0127] 3. Internal condenser;

[0128] 4. Check valve;

[0129] 5. Electric drive components;

[0130] 6. Electric drive radiator;

[0131] 7. Air conditioner heater;

[0132] 8. Liquid storage tank;

[0133] 9. Expansion tank;

[0134] 10. Second heat exchanger;

[0135] 11. Battery;

[0136] 12. Battery heater;

[0137] 100. First valve body; 101. First valve first port; 102. First valve second port; 103. First valve third port;

[0138] 200. Second valve body; 201. First port of second valve; 202. Second port of second valve; 203. Third port of second valve;

[0139] 300. Third valve body; 301. First port of third valve; 302. Second port of third valve; 303. Third port of third valve; 304. Fourth port of third valve;

[0140] 400, Fourth valve body; 401, First port of the fourth valve; 402, Second port of the fourth valve; 403, Third port of the fourth valve; 404, Fourth port of the fourth valve. Detailed Implementation

[0141] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0142] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0143] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0144] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0145] Example 1

[0146] like Figure 1 As shown, this embodiment provides a thermal management system, including a battery circuit, an electric drive circuit, and a heat pump circuit. The electric drive circuit is coupled to the battery circuit, and the heat pump circuit is coupled to both the electric drive circuit and the battery circuit.

[0147] In the thermal management system of this embodiment, the heat pump circuit is coupled to both the electric drive circuit and the battery circuit, based on the electric drive circuit being coupled to the battery circuit. This allows the heat generated by the electric drive assembly 5 and the battery 11 during operation to be fully utilized. Furthermore, the heat pump circuit and the battery circuit can dissipate heat through the electric drive circuit, thereby improving the waste heat utilization efficiency of the electric drive assembly 5 and the battery 11 and reducing ineffective energy loss.

[0148] Specifically, the heat pump circuit is coupled to the electric drive circuit through the first heat exchanger 1. The heat pump circuit is equipped with an internal evaporator 2 and an internal condenser 3, with the internal condenser 3 connected in parallel to the first heat exchanger 1. By setting the first heat exchanger 1, the heat pump circuit and the electric drive circuit can transfer heat more efficiently.

[0149] In this embodiment, the first heat exchanger 1 is a water-cooled condenser, i.e., WCC, and the internal condenser 3 is connected in parallel with the solvent side of the first heat exchanger 1. The electric drive circuit is connected to the water side of the first heat exchanger 1.

[0150] Specifically, a first valve body 100 is provided in the heat pump circuit, and the first valve body 100 is located upstream of the internal condenser 3. The first valve body 100 is a three-way valve, and is provided with a first valve first port 101, a first valve second port 102, and a first valve third port 103. The first valve first port 101 is connected to the fluid outlet of the internal evaporator 2, the first valve second port 102 is connected to the fluid inlet of the first heat exchanger 1, and the first valve third port 103 is connected to the fluid inlet of the internal condenser 3. The above settings allow the air conditioner to maintain its outlet air temperature by adjusting the first valve body 100 during high-temperature environments, when only the internal evaporator 2 is working. This prevents the refrigerant from flowing through the internal condenser 3. In low-temperature environments, during cold starts, the first valve body 100 prevents the refrigerant from flowing through the first heat exchanger 1, thus improving the air conditioner's heating speed and preventing energy waste. Furthermore, when charging at 5C with a relatively low ambient temperature, the first valve body 100 allows some refrigerant to flow through the internal condenser 3, enabling the internal condenser 3 to provide heat at a certain flow rate.

[0151] More specifically, a one-way valve 4 is provided in the heat pump circuit. The one-way valve 4 is located downstream of the internal condenser 3, and the internal condenser 3 is connected to the fluid outlet of the first heat exchanger 1 through the one-way valve 4. The above arrangement prevents the refrigerant flowing out of the fluid outlet of the first heat exchanger 1 from flowing back into the internal condenser 3.

[0152] In this embodiment, the heat pump circuit also includes a liquid storage tank 8 and a compressor. A low-pressure filling port is located upstream of the liquid storage tank 8, and the compressor is located downstream of the liquid storage tank 8. The first valve first interface 101 is connected to the fluid outlet of the liquid storage tank 8. The fluid outlet of the internal evaporator 2 is connected to the first valve first interface 101 in sequence through the liquid storage tank 8 and the compressor. A one-way valve is installed on the pipeline between the fluid outlet of the internal evaporator 2 and the low-pressure filling port. An electronic expansion valve is also installed between the upstream of the internal evaporator 2 and the downstream of the first heat exchanger 1. In addition, it can be understood that, as needed, temperature and pressure detection components are also installed in the heat pump circuit to better control and detect the operation of the heat pump circuit.

[0153] Specifically, the electric drive circuit is equipped with an electric drive assembly 5 and an electric drive radiator 6 connected in series. In cooling mode, the internal evaporator 2 dissipates heat through the electric drive radiator 6. This configuration allows the heat pump circuit to omit the outdoor heat exchanger and related refrigerant valves and pipes, simplifying the structure of the heat pump circuit and reducing the space occupied by the heat pump circuit.

[0154] More specifically, the first heat exchanger 1 and the electric drive assembly 5 are connected in parallel. This arrangement ensures that when the electric drive circuit only requires heat dissipation, the coolant flow path does not need to pass through the first heat exchanger 1, reducing the resistance of the coolant flow path and the energy consumption of the coolant pump.

[0155] More specifically, the electric drive circuit is equipped with a second valve body 200, which is a three-way valve with a first port 201, a second port 202, and a third port 203. The first port 201 is connected to the fluid outlet of the first heat exchanger 1, the second port 202 is connected to the fluid outlet of the electric drive assembly 5, and the third port 203 is connected to the fluid inlet of the electric drive radiator 6. This arrangement allows for flexible distribution of coolant between the first heat exchanger 1 and the electric drive assembly 5.

[0156] In this embodiment, the electric drive heat sink 6 is a low-temperature heat sink for the electric drive circuit, i.e., LTR. In the electric drive circuit, a water pump is also provided upstream of the electric drive assembly 5 and the electric drive heat sink 6. In addition, it can be understood that, as needed, temperature and pressure detection components are also provided in the electric drive circuit to better control and detect the operation of the electric drive circuit.

[0157] Specifically, the heat pump circuit is coupled to the battery circuit and / or the electric drive circuit via a second heat exchanger 10. By providing the second heat exchanger 10, the heat pump circuit can transfer heat to the battery circuit and / or the electric drive circuit more efficiently.

[0158] More specifically, the battery circuit includes a first battery sub-circuit and a second battery sub-circuit. The first battery sub-circuit is equipped with a second heat exchanger 10, and the second battery sub-circuit is equipped with a battery 11. The first battery sub-circuit is coupled to the second battery sub-circuit. This arrangement allows the coolant in the battery circuit to selectively flow through or not through the battery 11, avoiding excessive heat dissipation or overheating of the battery 11.

[0159] More specifically, the first battery sub-circuit is coupled to the second battery sub-circuit via a third valve body 300. This arrangement allows for fluid exchange between the first and second battery sub-circuits, improving heat exchange efficiency.

[0160] More specifically, the third valve body 300 is a four-way valve, equipped with a first port 301, a second port 302, a third port 303, and a fourth port 304. The fluid outlet of the second heat exchanger 10 is connected to the fluid inlet of the battery 11; the first port 301 of the third valve is connected to the fluid outlet of the battery 11; the second port 302 of the third valve is connected to the fluid inlet of the battery 11; the third port 303 of the third valve is connected to the fluid inlet of the second heat exchanger 10; and the fourth port 304 of the third valve is connected to the fluid outlet of the second heat exchanger 10. This arrangement allows for easy adjustment of the coolant flow path in the battery circuit.

[0161] In this embodiment, the third valve body 300 has three operating modes: third valve operating mode 1, third valve operating mode 2, third valve operating mode 3, third valve operating mode 4, third valve operating mode 5, third valve operating mode 6, and third valve operating mode 7. Specifically, in third valve operating mode 1, the third valve second port 302 is connected to the third valve third port 303, while the third valve first port 301 and third valve fourth port 304 are closed. In third valve operating mode 2, the third valve first port 301 and the third valve second port 302 are proportionally adjustable and both are connected to the third valve third port 303, while the third valve fourth port 304 is closed. In third valve operating mode 3, the third valve first port 301 is connected to the third valve third port 303, while the third valve second port 302 and third valve fourth port 304 are closed. In third valve operating mode 4, the third valve third port 303 and the third valve fourth port 304 are connected to the third valve third port 303. 4. Proportional adjustment, all connected to the second port 302 of the third valve, with the first port 301 of the third valve closed. In the third valve operating mode five, the second port 302 of the third valve is connected to the fourth port 304 of the third valve, while the first port 301 and the third port 303 of the third valve are closed. In the third valve operating mode six, the proportional adjustment of the first port 301 and the second port 302 of the third valve is connected to the fourth port 304 of the third valve, while the third port 303 of the third valve is closed. In the third valve operating mode seven, the first port 301 of the third valve is connected to the fourth port 304 of the third valve, while the second port 302 and the third port 303 of the third valve are closed. This configuration allows for efficient adjustment of the coolant flow path in the battery circuit.

[0162] In other embodiments, the first battery sub-loop can also be coupled to the second battery sub-loop via a heat exchanger.

[0163] Specifically, the electric drive circuit is coupled to the battery circuit via a fourth valve body 400. The electric drive circuit includes an electric drive assembly 5 and an electric drive radiator 6 connected in series. The fourth valve body 400 is a four-way valve with a first port 401, a second port 402, a third port 403, and a fourth port 404. The first port 401 is connected to the fluid inlet of the electric drive assembly 5, the second port 402 is connected to the fluid inlet of the second heat exchanger 10, the third port 403 is connected to the fluid outlet of the electric drive radiator 6, and the fourth port 404 is connected to the fluid outlet of the electric drive assembly 5, the fluid inlet of the electric drive radiator 6, and the fluid outlet of the second heat exchanger 10. This configuration allows the heat pump circuit to be selectively coupled to the battery circuit only through the second heat exchanger 10, to the electric drive circuit only through the second heat exchanger 10, or to both the battery circuit and the electric drive circuit simultaneously through the second heat exchanger 10.

[0164] More specifically, the fourth valve body 400 has four operating modes: fourth valve mode one, fourth valve mode two, fourth valve mode three, fourth valve mode four, and fourth valve mode five. In the fourth valve operating mode 1, the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve, while the second port 402 and the fourth port 404 of the fourth valve are closed. In the fourth valve operating mode 2, the second port 402 and the third port 403 of the fourth valve are proportionally adjustable and are both connected to the first port 401 of the fourth valve, while the fourth port 404 is closed. In the fourth valve operating mode 3, the first port 401 of the fourth valve is connected to the second port 402 of the fourth valve, while the third port 403 and the fourth port 404 of the fourth valve are closed. In the fourth valve operating mode 4, the first port 401 of the fourth valve is connected to the fourth port 404 of the fourth valve, while the second port 402 and the third port 403 of the fourth valve are closed. In the fourth valve operating mode 5, the second port 402 and the fourth port 404 of the fourth valve are proportionally adjustable and are both connected to the first port 401 of the fourth valve, while the third port 403 of the fourth valve is closed. This configuration allows for efficient adjustment of the coolant flow path in the electric drive circuit.

[0165] In this embodiment, the second heat exchanger 10 is a battery thermal management cold plate, i.e., BMSchiller. An electronic shut-off valve is also provided in the heat pump circuit. The electronic shut-off valve is located upstream of the second heat exchanger 10 and downstream of the one-way valve 4 and the first heat exchanger 1.

[0166] Specifically, a battery heater 12 is provided in the battery circuit, and the battery heater 12 and the second heat exchanger 10 are connected in series. This arrangement allows the battery heater 12 to promptly supplement the heating energy supplied to the internal condenser 3 and / or the battery 11 when the energy supply is insufficient or inefficient.

[0167] In this embodiment, the battery heater 12 is a thermistor, specifically a WPTC, which is located upstream of the battery 11 and the third valve body 300 in the battery circuit and downstream of the water pump.

[0168] This embodiment also provides a control method for a thermal management system, used to control the aforementioned thermal management system. The control method for the thermal management system includes:

[0169] Responding to instructions in response to the target operating mode;

[0170] Control the battery circuit, electric drive circuit, and heat pump circuit to ensure that the thermal management system operates in the target working mode.

[0171] Specifically, the target working mode includes at least one of the following: mode 1, mode 2, mode 3, mode 4, mode 5, mode 6, mode 7, mode 8, mode 9, and mode 10.

[0172] The ten patterns mentioned above are explained below:

[0173] In response to the command of the first mode, the operation of the electric drive circuit and the heat pump circuit is controlled, and the internal evaporator 2 in the heat pump circuit dissipates heat through the electric drive circuit.

[0174] The first mode specifically refers to the passenger cabin cooling mode, such as... Figure 2 As shown, in this mode, the battery circuit does not operate; only the electric drive circuit and the heat pump circuit operate. In the electric drive circuit, the first port 201 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve. The fluid does not flow through the electric drive assembly 5, and the flow path of the electric drive coolant is "water pump - first heat exchanger 1 - electric drive radiator 6". The electric drive circuit assists the first heat exchanger 1 in heat dissipation through the electric drive radiator 6. In the heat pump circuit, the first port 101 of the first valve is connected to the second port 102 of the first valve, and the fluid flows through the internal evaporator 2 but not through the internal condenser 3. The flow path of the refrigerant is "compressor - first heat exchanger 1 - electronic expansion valve - internal evaporator 2". The refrigerant flow path does not pass through the internal condenser 3, and there is no heat dissipation of the internal condenser 3 in the air conditioning unit.

[0175] In response to the command of the second mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery 11 in the battery circuit transfers heat to the electric drive circuit through the heat pump circuit, and the electric drive circuit dissipates heat.

[0176] The second mode, specifically the mode where battery 11 is in a 5C supercharged state, requires cooling of battery 11, such as... Figure 3 As shown, the battery circuit, electric drive circuit, and heat pump circuit are all operating at this time. The battery circuit and electric drive circuit are independent. In the battery circuit, the first port 301 of the third valve is connected to the third port 303 of the third valve, and the fluid flows through the battery 11. The flow path of the battery coolant is "water pump-battery 11-second heat exchanger 10". In the electric drive circuit, the first port 201 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve. The fluid does not flow through the electric drive assembly 5. In the heat pump circuit, the first port 101 of the first valve is connected to the second port 102 of the first valve. The fluid does not flow through the internal evaporator 2 and the internal condenser 3. The flow path of the refrigerant is "compressor-first heat exchanger 1-electronic shut-off valve-second heat exchanger 10". The refrigerant and coolant exchange heat in the second heat exchanger 10 to achieve rapid cooling of the battery 11.

[0177] In response to the command of the third mode, the operation of the electric drive circuit is controlled, and the electric drive component 5 in the electric drive circuit is cooled by the electric drive heat sink 6.

[0178] The third mode is specifically the electric drive cooling mode, such as... Figure 4 As shown, the battery circuit and heat pump circuit are not running at this time, and the electric drive circuit is running. In the electric drive circuit, the second port 202 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve. The fluid flows between the electric drive assembly 5 and the electric drive radiator 6. The flow path of the electric drive coolant is "water pump-electric drive assembly 5-electric drive radiator 6", which does not pass through the first heat exchanger 1, thus reducing the resistance of the electric drive circuit.

[0179] In response to the command of the fourth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The internal evaporator 2 in the heat pump circuit dissipates heat through the electric drive circuit. The battery 11 in the battery circuit transfers heat to the electric drive circuit through the heat pump circuit and dissipates heat through the electric drive circuit.

[0180] The fourth mode specifically refers to a cabin cooling + battery cooling mode, such as... Figure 5 As shown, the operation of the control battery circuit, electric drive circuit, and heat pump circuit is independent of each other. In the battery circuit, the first port 301 of the third valve is connected to the third port 303 of the third valve, and the fluid flows through the battery 11. The flow path of the battery coolant is "water pump-battery 11-second heat exchanger 10". In the electric drive circuit, the first port 201 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve. The fluid does not flow through the electric drive assembly 5, and the flow path of the electric drive coolant is "water pump-first heat exchanger 1-electric drive radiator 6". In the heat pump circuit, the first port 101 of the first valve is connected to the second port 102 of the first valve, and the fluid flows through the internal evaporator 2 but not through the internal condenser 3. The internal evaporator 2 and the second heat exchanger 10 are connected in parallel, and the flow path of the refrigerant is "compressor-first heat exchanger 1-electronic expansion valve / electronic shut-off valve-internal evaporator 2 / second heat exchanger 10".

[0181] In response to the command of the fifth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent. The battery circuit transfers the heat generated by the operation of the battery heater 12 to the internal condenser 3 in the heat pump circuit. The electric drive component 5 in the electric drive circuit dissipates heat through the electric drive radiator 6.

[0182] The fifth mode specifically refers to a cabin heating + battery-free + electric drive cooling mode, such as... Figure 6As shown, the control circuit includes the battery circuit, electric drive circuit, and heat pump circuit. The battery circuit and electric drive circuit are independent. In the battery circuit, the battery heater 12 is turned on, and the second port 302 of the third valve is connected to the third port 303 of the third valve. Fluid does not flow through the battery 11, and the flow path of the battery coolant is "water pump - battery heater 12 - second heat exchanger 10". In the electric drive circuit, the second port 202 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve. The fluid flows between the electric drive assembly 5 and the electric drive radiator 6. The flow path of the electric drive coolant is "water pump-electric drive assembly 5-electric drive radiator 6". In the heat pump circuit, the first port 101 of the first valve is connected to the third port 103 of the first valve. The fluid does not flow through the internal evaporator 2 but flows through the internal condenser 3. The flow path of the refrigerant is "compressor-internal condenser 3-electronic shut-off valve-second heat exchanger 10". The refrigerant absorbs heat through the second heat exchanger 10, and the heat is dissipated in the internal condenser 3 to achieve heating of the crew cabin.

[0183] In response to the command of the sixth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent. The battery circuit transfers the heat generated by the operation of the battery 11 to the internal condenser 3 in the heat pump circuit. The electric drive component 5 in the electric drive circuit is cooled by the electric drive radiator 6.

[0184] The sixth mode specifically refers to a combination of crew cabin heating, battery cooling heat recovery, and electric drive cooling. Figure 7 As shown, the control circuit includes a battery circuit, an electric drive circuit, and a heat pump circuit. The battery circuit and the electric drive circuit are independent. In the battery circuit, the first port 301 of the third valve is connected to the third port 303 of the third valve, and fluid flows through the battery 11. The flow path of the battery coolant is "water pump - battery 11 - second heat exchanger 10". In the electric drive circuit, the second port 202 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve. Fluid flows between the electric drive assembly 5 and the electric drive radiator 6. The flow path of the electric drive coolant is "water pump - electric drive assembly 5 - electric drive radiator 6". In the heat pump circuit, the first port 101 of the first valve is connected to the third port 103 of the first valve. The fluid does not flow through the internal evaporator 2 but flows through the internal condenser 3. The refrigerant flow path is "compressor - internal condenser 3 - electronic shut-off valve - second heat exchanger 10". In this mode, the refrigerant absorbs the heat from the battery coolant flow path in the second heat exchanger 10 and then releases the heat into the passenger compartment through the internal condenser 3, thus realizing battery heat recovery.

[0185] In response to the command of the seventh mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are coupled. The battery circuit transfers the heat generated by the operation of the battery 11 to the internal condenser 3 in the heat pump circuit. The electric drive circuit transfers the heat generated by the operation of the electric drive assembly 5 to the internal condenser 3 in the heat pump circuit.

[0186] The seventh mode specifically refers to a crew cabin heating + battery cooling heat recovery + electric drive heat recovery mode, such as... Figure 8 As shown, the system controls the operation of the battery circuit, electric drive circuit, and heat pump circuit. The battery circuit and electric drive circuit are coupled, and the battery coolant flow path is in parallel with the electric drive coolant flow path. In the battery circuit, the first port 301 of the third valve is connected to the third port 303 of the third valve, and the fluid flows through the battery 11, flowing between the second heat exchanger 10 and the battery 11. In the electric drive circuit, the second port 202 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the second port 402 of the fourth valve. The fluid flows through the electric drive assembly 5 but not through the electric drive heat sink. The refrigerant 6 flows between the electric drive assembly 5 and the second heat exchanger 10. In the heat pump circuit, the first port 101 of the first valve is connected to the third port 103 of the first valve. The fluid does not flow through the internal evaporator 2 but flows through the internal condenser 3. The refrigerant flow path is "compressor-internal condenser 3-electronic shut-off valve-second heat exchanger 10". The heat from the battery circuit and the electric drive circuit is gathered in the second heat exchanger 10. The refrigerant absorbs the heat from the battery circuit and the electric drive circuit in the second heat exchanger 10 and releases the heat into the passenger compartment through the internal condenser 3, thus realizing the heat recovery of the battery and the electric drive.

[0187] In response to the command of the eighth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent. The battery circuit transfers the heat generated by the operation of the battery heater 12 to the battery 11 and the internal condenser 3 in the heat pump circuit. The electric drive component 5 in the electric drive circuit is cooled by the electric drive radiator 6.

[0188] The eighth mode specifically refers to a combination of crew cabin heating, battery heating, and electric drive cooling. Figure 9As shown, the operation of the control battery circuit, electric drive circuit, and heat pump circuit is independent of each other. In the battery circuit, the battery heater 12 is turned on, the first port 301 of the third valve is connected to the third port 303 of the third valve, and the fluid flows through the battery 11. The flow path of the battery coolant is "water pump-battery heater 12-battery 11-second heat exchanger 10". In the electric drive circuit, the second port 202 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve. The fluid flows between the electric drive assembly 5 and the electric drive radiator 6. The flow path of the electric drive coolant is "water pump-electric drive assembly 5-electric drive radiator 6". In the heat pump circuit, the first port 101 of the first valve is connected to the third port 103 of the first valve. The fluid does not flow through the internal evaporator 2 but flows through the internal condenser 3. The flow path of the refrigerant is "compressor-internal condenser 3-electronic shut-off valve-second heat exchanger 10".

[0189] In response to the instructions of the ninth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent of each other. The battery circuit transfers the heat generated by the operation of the battery heater 12 to the battery 11, and the electric drive circuit transfers the heat generated by the operation of the electric drive assembly 5 to the internal condenser 3 in the heat pump circuit.

[0190] The ninth mode specifically combines crew cabin heating, battery heating, and electric drive cooling. Heat from the electric drive circuit is recovered and transferred to the crew cabin, utilizing waste heat from the electric drive circuit. Figure 10 As shown, the control circuit includes a battery circuit, an electric drive circuit, and a heat pump circuit. The battery circuit and the electric drive circuit operate independently. In the battery circuit, the battery heater 12 operates, and the first port 301 of the third valve is connected to the fourth port 304 of the third valve. Fluid flows through the battery 11, and the flow path of the battery coolant is "water pump - battery heater 12 - battery 11". In the electric drive circuit, the second port 202 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the second port 402 of the fourth valve. Fluid flows through the electric drive assembly. 5. It does not flow through the electric drive radiator 6, but flows between the electric drive assembly 5 and the second heat exchanger 10. The flow path of the electric drive coolant is "water pump - electric drive assembly 5 - second heat exchanger 10". In the heat pump circuit, the first port 101 of the first valve is connected to the third port 103 of the first valve. The fluid does not flow through the internal evaporator 2 but flows through the internal condenser 3. The flow path of the refrigerant is "compressor - internal condenser 3 - electronic shut-off valve - second heat exchanger 10". The refrigerant absorbs the heat of the electric drive circuit in the second heat exchanger 10, realizing the utilization of waste heat of the electric drive circuit.

[0191] In response to the instructions of the tenth mode, the operation of the battery circuit and the electric drive circuit is controlled. The battery circuit and the electric drive circuit are coupled, and the electric drive circuit transfers the heat generated by the operation of the electric drive assembly 5 to the battery 11 in the battery circuit.

[0192] The tenth mode specifically employs a battery heating + electric drive heat recovery mode, which utilizes waste heat from the electric drive circuit. Figure 11 As shown, the heat pump circuit is not running at this time, while the control battery circuit and electric drive circuit are running. The battery circuit and electric drive circuit are coupled. In the battery circuit, the first port 301 of the third valve is connected to the third port 303 of the third valve, and the fluid flows through the battery 11 and between the second heat exchanger 10 and the battery 11. In the electric drive circuit, the second port 202 of the second valve is connected to the third port 203 of the second valve, and the first port 401 of the fourth valve is connected to the second port 402 of the fourth valve. The fluid flows through the electric drive assembly 5 but not through the electric drive radiator 6, and flows between the electric drive assembly 5 and the second heat exchanger 10. The battery coolant flow path is connected in parallel with the electric drive coolant flow path, so that the waste heat of the electric drive assembly 5 is used to heat the battery 11.

[0193] In this embodiment, the target operating modes include a first mode, a second mode, a third mode, a fourth mode, a fifth mode, a sixth mode, a seventh mode, an eighth mode, a ninth mode, and a tenth mode. The thermal management system can operate in one mode as needed.

[0194] This embodiment also provides an electronic device, including:

[0195] At least one processor; and

[0196] A memory that is communicatively connected to at least one processor; wherein,

[0197] The memory stores a computer program that can be executed by at least one processor, which enables the at least one processor to perform the control method of the thermal management system described above.

[0198] This embodiment also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the control method of the thermal management system described above.

[0199] This embodiment also provides a vehicle including the thermal management system described above.

[0200] Example 2

[0201] This embodiment provides a thermal management system, control method, electronic device, medium, and vehicle. Components identical or corresponding to those in Embodiment 1 are referred to using the same or corresponding reference numerals as in Embodiment 1. For simplicity, only the differences between this embodiment and Embodiment 1 are described below.

[0202] like Figure 12 As shown, the thermal management system in this embodiment differs from the thermal management system in Embodiment 1 in that the first heat exchanger 1 and the electric drive assembly 5 are connected in series in the electric drive circuit.

[0203] In this embodiment, the first heat exchanger 1 and the electric drive assembly 5 are connected in series. Compared with the first embodiment, a three-way valve and the pipeline configured with the three-way valve can be omitted, which effectively reduces the cost of the system.

[0204] Example 3

[0205] Based on any of the above embodiments, this embodiment provides a thermal management system, a control method, an electronic device, a medium, and a vehicle, wherein the same or corresponding components as those in the above embodiments are referred to by the same or corresponding reference numerals. For simplicity, only the differences between this embodiment and the above embodiments are described below.

[0206] In this embodiment of the thermal management system, the internal evaporator 2 and the internal condenser 3 are installed in the air conditioning unit, and the air conditioning unit is also equipped with an air conditioning heater 7.

[0207] In this embodiment, by additionally installing an air conditioning heater 7 in the air conditioning unit, the heat pump system can be replenished in a timely manner when its heating energy is insufficient or its efficiency is low.

[0208] Based on the air conditioner heater 7, the battery heater 12 is not installed in the battery circuit of this embodiment, thereby ensuring the cost of the system.

[0209] In this embodiment, the air conditioning heater 7 is a fan heater, namely APTC.

[0210] Example 4

[0211] Based on any of the above embodiments, this embodiment provides a thermal management system, a control method, an electronic device, a medium, and a vehicle, wherein the same or corresponding components as those in the above embodiments are referred to by the same or corresponding reference numerals. For simplicity, only the differences between this embodiment and the above embodiments are described below.

[0212] In the thermal management system of this embodiment, the liquid storage tank 8 is adjusted to the downstream of the internal evaporator 2 in the heat pump circuit. The fluid inlet of the internal evaporator 2, the fluid outlet of the internal condenser 3 and the fluid outlet of the first heat exchanger 1 are connected through the liquid storage tank 8.

[0213] In this embodiment, by adjusting the position of the liquid storage tank 8, the flow of refrigerant in the heat pump system is made safer.

[0214] like Figure 13 As shown, this embodiment is an improvement based on Embodiment 3.

[0215] Example 5

[0216] Based on any of the above embodiments, this embodiment provides a thermal management system, a control method, an electronic device, a medium, and a vehicle, wherein the same or corresponding components as those in the above embodiments are referred to by the same or corresponding reference numerals. For simplicity, only the differences between this embodiment and the above embodiments are described below.

[0217] In the thermal management system of this embodiment, the electric drive circuit is equipped with an expansion tank 9, and the electric drive circuit is equipped with an electric drive assembly 5 and an electric drive radiator 6 connected in series. The expansion tank 9 is connected to the fluid inlet of the electric drive assembly 5.

[0218] In this embodiment, the expansion tank 9 is provided to make the flow of coolant in the electric drive circuit safer and more reliable.

[0219] like Figure 14 As shown, this embodiment is an improvement based on Embodiment 3.

[0220] It is understood that the above embodiments can be selectively combined as needed, provided that the combination of these technical features does not contradict each other. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. These embodiments not explicitly written should also be considered to be within the scope of this specification.

[0221] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A thermal management system, characterized in that, include: Battery circuit; The electric drive circuit is coupled to the battery circuit. The heat pump circuit is coupled to the electric drive circuit and the battery circuit.

2. The thermal management system according to claim 1, characterized in that, The heat pump circuit is coupled to the electric drive circuit through the first heat exchanger (1). The heat pump circuit is equipped with an internal evaporator (2) and an internal condenser (3), and the internal condenser (3) is connected in parallel to the first heat exchanger (1).

3. The thermal management system according to claim 1 or 2, characterized in that, A first valve body (100) is provided in the heat pump circuit, and the first valve body (100) is located upstream of the internal condenser (3); The first valve body (100) is provided with a first valve first port (101), a first valve second port (102) and a first valve third port (103). The first valve first port (101) is connected to the fluid outlet of the internal evaporator (2), the first valve second port (102) is connected to the fluid inlet of the first heat exchanger (1), and the first valve third port (103) is connected to the fluid inlet of the internal condenser (3).

4. The thermal management system according to any one of claims 1-3, characterized in that, A one-way valve (4) is provided in the heat pump circuit. The one-way valve (4) is located downstream of the internal condenser (3). The internal condenser (3) is connected to the fluid outlet of the first heat exchanger (1) through the one-way valve (4).

5. The thermal management system according to any one of claims 1-4, characterized in that, The electric drive circuit is equipped with an electric drive assembly (5) and an electric drive radiator (6) connected in series. In the cooling mode, the internal evaporator (2) dissipates heat through the electric drive radiator (6).

6. The thermal management system according to any one of claims 1-5, characterized in that, In the electric drive circuit, the first heat exchanger (1) and the electric drive assembly (5) are connected in parallel.

7. The thermal management system according to any one of claims 1-6, characterized in that, The electric drive circuit is provided with a second valve body (200), and the second valve body (200) is provided with a second valve first interface (201), a second valve second interface (202) and a second valve third interface (203); The first port (201) of the second valve is connected to the fluid outlet of the first heat exchanger (1), the second port (202) of the second valve is connected to the fluid outlet of the electric drive assembly (5), and the third port (203) of the second valve is connected to the fluid inlet of the electric drive radiator (6).

8. The thermal management system according to any one of claims 1-5, characterized in that, In the electric drive circuit, the first heat exchanger (1) and the electric drive assembly (5) are connected in series.

9. The thermal management system according to any one of claims 1-8, characterized in that, The heat pump circuit is equipped with a liquid storage tank (8), and the fluid inlet of the internal evaporator (2), the fluid outlet of the internal condenser (3) and the fluid outlet of the first heat exchanger (1) are connected through the liquid storage tank (8).

10. The thermal management system according to any one of claims 1-9, characterized in that, The electric drive circuit is equipped with an expansion tank (9), and the electric drive circuit is equipped with an electric drive assembly (5) and an electric drive radiator (6) connected in series. The expansion tank (9) is connected to the fluid inlet of the electric drive assembly (5).

11. The thermal management system according to any one of claims 1-10, characterized in that, The heat pump circuit is coupled to the battery circuit and / or the electric drive circuit via a second heat exchanger (10).

12. The thermal management system according to any one of claims 1-11, characterized in that, The battery circuit includes a first battery sub-circuit and a second battery sub-circuit. The first battery sub-circuit is equipped with a second heat exchanger (10), and the second battery sub-circuit is equipped with a battery (11). The first battery sub-circuit is coupled to the second battery sub-circuit.

13. The thermal management system according to any one of claims 1-12, characterized in that, The first battery sub-circuit is coupled to the second battery sub-circuit through the third valve body (300).

14. The thermal management system according to any one of claims 1-13, characterized in that, The third valve body (300) is provided with a third valve first port (301), a third valve second port (302), a third valve third port (303) and a third valve fourth port (304); The fluid outlet of the second heat exchanger (10) is connected to the fluid inlet of the battery (11); The first port (301) of the third valve is connected to the fluid outlet of the battery (11); The second port (302) of the third valve is connected to the fluid inlet of the battery (11); The third valve's third port (303) is connected to the fluid inlet of the second heat exchanger (10); The fourth port (304) of the third valve is connected to the fluid outlet of the second heat exchanger (10).

15. The thermal management system according to any one of claims 1-14, characterized in that, The third valve body (300) has three working modes: third valve working mode 1, third valve working mode 2, third valve working mode 3, third valve working mode 4, third valve working mode 5, third valve working mode 6 and third valve working mode 7. In the third valve operating mode, the second port (302) of the third valve is connected to the third port (303) of the third valve, and the first port (301) and the fourth port (304) of the third valve are closed; In the second working mode of the third valve, the first port (301) and the second port (302) of the third valve are proportionally adjusted and connected to the third port (303) of the third valve, while the fourth port (304) of the third valve is closed. In the third valve operating mode 3, the first port (301) of the third valve is connected to the third port (303) of the third valve, and the second port (302) and the fourth port (304) of the third valve are closed; In the third valve working mode four, the third port (303) and the fourth port (304) of the third valve are proportionally adjusted and connected to the second port (302) of the third valve, while the first port (301) of the third valve is closed. In the third valve operating mode five, the third valve second port (302) is connected to the third valve fourth port (304), and the third valve first port (301) and the third valve third port (303) are closed; In the third valve working mode six, the first port (301) and the second port (302) of the third valve are proportionally adjusted and connected to the fourth port (304) of the third valve, while the third port (303) of the third valve is closed; In the third valve operating mode seven, the third valve first port (301) is connected to the third valve fourth port (304), and the third valve second port (302) and the third valve third port (303) are closed.

16. The thermal management system according to any one of claims 1-15, characterized in that, The electric drive circuit is coupled to the battery circuit through the fourth valve body (400). The electric drive circuit is provided with an electric drive assembly (5) and an electric drive heat sink (6) connected in series. The fourth valve body (400) is provided with a fourth valve first interface (401), a fourth valve second interface (402), a fourth valve third interface (403) and a fourth valve fourth interface (404). The first port (401) of the fourth valve is connected to the fluid inlet of the electric drive assembly (5); The second port (402) of the fourth valve is connected to the fluid inlet of the second heat exchanger (10); The third port (403) of the fourth valve is connected to the fluid outlet of the electric drive radiator (6); The fourth valve fourth port (404) is connected to the fluid outlet of the electric drive assembly (5), the fluid inlet of the electric drive radiator (6), and the fluid outlet of the second heat exchanger (10).

17. The thermal management system according to any one of claims 1-16, characterized in that, The fourth valve body (400) has four working modes: fourth valve mode 1, fourth valve mode 2, fourth valve mode 3, fourth valve mode 4 and fourth valve mode 5. In the fourth valve working mode, the first port (401) of the fourth valve is connected to the third port (403) of the fourth valve, and the second port (402) and the fourth port (404) of the fourth valve are closed. In the second working mode of the fourth valve, the ratio of the second port (402) and the third port (403) of the fourth valve is adjustable, both of which are connected to the first port (401) of the fourth valve, and the fourth port (404) of the fourth valve is closed. In the third working mode of the fourth valve, the first port (401) of the fourth valve is connected to the second port (402) of the fourth valve, and the third port (403) and the fourth port (404) of the fourth valve are closed. In the fourth working mode of the fourth valve, the first port (401) of the fourth valve is connected to the fourth port (404) of the fourth valve, and the second port (402) and the third port (403) of the fourth valve are closed. In the fifth working mode of the fourth valve, the ratio of the second port (402) and the fourth port (404) of the fourth valve is adjustable, both of which are connected to the first port (401) of the fourth valve, while the third port (403) of the fourth valve is closed.

18. The thermal management system according to any one of claims 1-17, characterized in that, A battery heater (12) is provided in the battery circuit, and the battery heater (12) and the second heat exchanger (10) are connected in series.

19. A control method for a thermal management system, characterized in that, A method for controlling a thermal management system, the thermal management system comprising a battery circuit, an electric drive circuit, and a heat pump circuit, wherein the electric drive circuit is coupled to the battery circuit, and the heat pump circuit is coupled to both the electric drive circuit and the battery circuit, and the control method for the thermal management system includes: Responding to instructions in response to the target operating mode; Control the battery circuit, electric drive circuit, and heat pump circuit to make the thermal management system operate in the target operating mode.

20. The control method for the thermal management system according to claim 19, characterized in that, The target operating mode includes at least one of the following: mode 1, mode 2, mode 3, mode 4, mode 5, mode 6, mode 7, mode 8, mode 9, and mode 10; In response to the instructions of the first mode, the operation of the electric drive circuit and the heat pump circuit is controlled, and the internal evaporator (2) in the heat pump circuit dissipates heat through the electric drive circuit. In response to the instructions of the second mode, the operation of the battery circuit, the electric drive circuit and the heat pump circuit are controlled. The battery (11) in the battery circuit transfers heat to the electric drive circuit through the heat pump circuit and dissipates heat through the electric drive circuit. In response to the command of the third mode, the operation of the electric drive circuit is controlled, and the electric drive component (5) in the electric drive circuit is cooled by the electric drive heat sink (6); In response to the instructions of the fourth mode, the operation of the battery circuit, the electric drive circuit and the heat pump circuit are controlled. The internal evaporator (2) in the heat pump circuit dissipates heat through the electric drive circuit. The battery (11) in the battery circuit transfers heat to the electric drive circuit through the heat pump circuit and dissipates heat through the electric drive circuit. In response to the instructions of the fifth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent. The battery circuit transfers the heat generated by the operation of the battery heater (12) to the internal condenser (3) in the heat pump circuit. The electric drive component (5) in the electric drive circuit dissipates heat through the electric drive radiator (6). In response to the instructions of the sixth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent. The battery circuit transfers the heat generated by the operation of the battery (11) to the internal condenser (3) in the heat pump circuit. The electric drive component (5) in the electric drive circuit dissipates heat through the electric drive radiator (6). In response to the instructions of the seventh mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are coupled. The battery circuit transfers the heat generated by the operation of the battery (11) to the internal condenser (3) in the heat pump circuit. The electric drive circuit transfers the heat generated by the operation of the electric drive assembly (5) to the internal condenser (3) in the heat pump circuit. In response to the command of the eighth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent. The battery circuit transfers the heat generated by the operation of the battery heater (12) to the battery (11) and the internal condenser (3) in the heat pump circuit. The electric drive component (5) in the electric drive circuit dissipates heat through the electric drive radiator (6). In response to the instructions of the ninth mode, the operation of the battery circuit, electric drive circuit and heat pump circuit is controlled. The battery circuit and electric drive circuit are independent of each other. The battery circuit transfers the heat generated by the operation of the battery heater (12) to the battery (11), and the electric drive circuit transfers the heat generated by the operation of the electric drive assembly (5) to the internal condenser (3) in the heat pump circuit. In response to the instructions of the tenth mode, the operation of the battery circuit and the electric drive circuit is controlled. The battery circuit and the electric drive circuit are coupled, and the electric drive circuit transfers the heat generated by the operation of the electric drive assembly (5) to the battery (11) in the battery circuit.

21. The control method for the thermal management system according to claim 19 or 20, characterized in that, In the first mode: In the electric drive circuit, the first port (201) of the second valve is connected to the third port (203) of the second valve, and the first port (401) of the fourth valve is connected to the third port (403) of the fourth valve. The fluid flows between the first heat exchanger (1) and the electric drive radiator (6). In the heat pump circuit, the first port (101) of the first valve is connected to the second port (102) of the first valve, and fluid flows between the first heat exchanger (1) and the internal evaporator (2).

22. The control method for the thermal management system according to any one of claims 19-21, characterized in that, Second mode: In the battery circuit, the first port (301) of the third valve is connected to the third port (303) of the third valve, and fluid flows between the second heat exchanger (10) and the battery (11); In the electric drive circuit, the first port (201) of the second valve is connected to the third port (203) of the second valve, and the first port (401) of the fourth valve is connected to the third port (403) of the fourth valve. The fluid flows between the first heat exchanger (1) and the electric drive radiator (6). In the heat pump circuit, the first port (101) of the first valve is connected to the second port (102) of the first valve, and fluid flows between the first heat exchanger (1) and the second heat exchanger (10).

23. The control method for the thermal management system according to any one of claims 19-22, characterized in that, In the third mode: In the electric drive circuit, the second valve second port (202) is connected to the second valve third port (203), the fourth valve first port (401) is connected to the fourth valve third port (403), and fluid flows between the electric drive assembly (5) and the electric drive heat sink (6).

24. The control method for the thermal management system according to any one of claims 19-23, characterized in that, In the fourth mode: In the battery circuit, the first port (301) of the third valve is connected to the third port (303) of the third valve, and fluid flows between the second heat exchanger (10) and the battery (11); In the electric drive circuit, the first port (201) of the second valve is connected to the third port (203) of the second valve, and the first port (401) of the fourth valve is connected to the third port (403) of the fourth valve. The fluid flows between the first heat exchanger (1) and the electric drive radiator (6). In the heat pump circuit, the first port (101) of the first valve is connected to the second port (102) of the first valve, and the fluids flowing out from the internal evaporator (2) and the second heat exchanger (10) converge and flow to the first heat exchanger (1).

25. The control method for the thermal management system according to any one of claims 19-24, characterized in that, In the fifth mode: In the battery circuit, the battery heater (12) is turned on, the second port (302) of the third valve is connected to the third port (303) of the third valve, and the fluid flows between the second heat exchanger (10) and the battery heater (12); In the electric drive circuit, the second port (202) of the second valve is connected to the third port (203) of the second valve, and the first port (401) of the fourth valve is connected to the third port (403) of the fourth valve. Fluid flows between the electric drive assembly (5) and the electric drive heat sink (6). In the heat pump circuit, the first port (101) of the first valve is connected to the third port (103) of the first valve, and fluid flows between the internal condenser (3) and the second heat exchanger (10).

26. The control method for the thermal management system according to any one of claims 19-25, characterized in that, In the sixth mode: In the battery circuit, the first port (301) of the third valve is connected to the third port (303) of the third valve, and fluid flows between the second heat exchanger (10) and the battery (11); In the electric drive circuit, the second port (202) of the second valve is connected to the third port (203) of the second valve, and the first port (401) of the fourth valve is connected to the third port (403) of the fourth valve. Fluid flows between the electric drive assembly (5) and the electric drive heat sink (6). In the heat pump circuit, the first port (101) of the first valve is connected to the third port (103) of the first valve, and fluid flows between the internal condenser (3) and the second heat exchanger (10).

27. The control method for the thermal management system according to any one of claims 19-26, characterized in that, In the seventh mode: In the battery circuit, the first port (301) of the third valve is connected to the third port (303) of the third valve, and fluid flows between the second heat exchanger (10) and the battery (11); In the electric drive circuit, the second port (202) of the second valve is connected to the third port (203) of the second valve, and the first port (401) of the fourth valve is connected to the second port (402) of the fourth valve. Fluid flows between the electric drive assembly (5) and the second heat exchanger (10). In the heat pump circuit, the first port (101) of the first valve is connected to the third port (103) of the first valve, and fluid flows between the internal condenser (3) and the second heat exchanger (10).

28. The control method for the thermal management system according to any one of claims 19-27, characterized in that, In the eighth mode: In the battery circuit, the battery heater (12) is turned on, the first port (301) of the third valve is connected to the third port (303) of the third valve, and the fluid flows between the second heat exchanger (10), the battery heater (12) and the battery (11); In the electric drive circuit, the second port (202) of the second valve is connected to the third port (203) of the second valve, and the first port (401) of the fourth valve is connected to the third port (403) of the fourth valve. Fluid flows between the electric drive assembly (5) and the electric drive heat sink (6). In the heat pump circuit, the first port (101) of the first valve is connected to the third port (103) of the first valve, and fluid flows between the internal condenser (3) and the second heat exchanger (10).

29. The control method for the thermal management system according to any one of claims 19-28, characterized in that, In the ninth mode: In the battery circuit, the battery heater (12) is turned on, the first port (301) of the third valve is connected to the fourth port (304) of the third valve, and fluid flows between the battery heater (12) and the battery (11); In the electric drive circuit, the second port (202) of the second valve is connected to the third port (203) of the second valve, and the first port (401) of the fourth valve is connected to the second port (402) of the fourth valve. Fluid flows between the electric drive assembly (5) and the second heat exchanger (10). In the heat pump circuit, the first port (101) of the first valve is connected to the third port (103) of the first valve, and fluid flows between the internal condenser (3) and the second heat exchanger (10).

30. The control method for the thermal management system according to any one of claims 19-29, characterized in that, In the tenth mode: In the battery circuit, the first port (301) of the third valve is connected to the third port (303) of the third valve, and fluid flows between the second heat exchanger (10) and the battery (11); In the electric drive circuit, the second port (202) of the second valve is connected to the third port (203) of the second valve, and the first port (401) of the fourth valve is connected to the second port (402) of the fourth valve. Fluid flows between the electric drive assembly (5) and the second heat exchanger (10).

31. An electronic device, characterized in that, include: At least one processor; as well as A memory that is communicatively connected to at least one processor; wherein, The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to perform the control method of the thermal management system according to any one of claims 19-30.

32. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the control method of the thermal management system according to any one of claims 19-30.

33. A vehicle, characterized in that, Includes the thermal management system described in any one of claims 1-18.

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