Thermal management system, method, device, medium and vehicle

Abstract

The present disclosure provides a thermal management system, method, device, medium, and vehicle. The thermal management system includes: a coolant circulation circuit, a first refrigerant circulation circuit for cooling, and a second refrigerant circulation circuit for heating; the first refrigerant circulation circuit includes a first heat exchanger; the second refrigerant circulation circuit includes a second heat exchanger; the first heat exchanger includes a refrigerant pipe and a coolant pipe; the second heat exchanger includes a refrigerant pipe; the coolant pipe of the first heat exchanger is connected to the coolant circulation circuit; the first heat exchanger is a device for transferring heat from the refrigerant pipe of the first refrigerant circulation circuit to the coolant circulation circuit; the second heat exchanger is a device for exchanging heat between the refrigerant in the refrigerant pipe of the second refrigerant circulation circuit and the air. The present disclosure provides a more flexible setting position for the first heat exchanger, and the heat exchange effects of both the first heat exchanger and the second heat exchanger are improved.

Description

Technical Field

[0001] The present disclosure relates to the field of air-conditioning technology, and in particular to a thermal management system, method, device, medium and vehicle. Background Art

[0002] To meet the vehicle's thermal management requirements, some existing solutions may simultaneously utilize two refrigerant cooling systems to heat or cool the target. Both refrigerant cooling systems require heat exchange with the air, requiring at least two heat exchangers. To achieve effective heat exchange, existing solutions require these heat exchangers to be located within the vehicle's front engine compartment's air intake grille. If multiple heat exchangers are deployed within the engine compartment, space limitations may prevent some of these heat exchangers from fully circulating and exchanging heat with the air, resulting in poor heat exchange. Summary of the Invention

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a thermal management system, method, device, medium and vehicle.

[0004] In a first aspect, the present disclosure provides a thermal management system comprising: a coolant circulation circuit, a first refrigerant circulation circuit for cooling, and a second refrigerant circulation circuit for heating;

[0005] The first refrigerant circulation circuit includes a first heat exchanger; the second refrigerant circulation circuit includes a second heat exchanger; the first heat exchanger includes a refrigerant pipe and a coolant pipe; the second heat exchanger includes a refrigerant pipe; the coolant pipe of the first heat exchanger is connected to the coolant circulation circuit;

[0006] The first heat exchanger is a device for transferring heat from the refrigerant pipe of the first refrigerant circulation circuit to the coolant circulation circuit; the second heat exchanger is a device for exchanging heat between the refrigerant in the refrigerant pipe of the second refrigerant circulation circuit and the air.

[0007] Optionally, the first refrigerant circulation loop further includes a third heat exchanger; the third heat exchanger includes a refrigerant pipe and a coolant pipe;

[0008] The coolant circulation loop includes a battery heat exchange loop; the battery heat exchange loop includes a battery heat exchange structure and a first multi-way valve; the first multi-way valve is used to control the connection and disconnection between the coolant pipeline of the third heat exchanger and the battery heat exchange structure.

[0009] Optionally, the second refrigerant circulation loop further includes a fourth heat exchanger; the fourth heat exchanger includes a refrigerant pipe and a coolant pipe;

[0010] The coolant circulation loop includes a warm air heat exchange loop; the coolant pipeline of the fourth heat exchanger is connected to the warm air heat exchange loop.

[0011] Optionally, a fifth heat exchanger is further included; the fifth heat exchanger includes a first coolant pipe and a second coolant pipe;

[0012] The coolant circulation loop also includes a battery heat exchange loop; the battery heat exchange loop includes a battery heat exchange structure and a second multi-way valve; the first coolant pipe of the fifth heat exchanger is connected in series to the coolant pipe of the warm air heat exchange loop; the second coolant pipe of the fifth heat exchanger is connected in series to the coolant pipe of the battery heat exchange loop; the second multi-way valve is used to control the connection and disconnection between the second coolant pipe of the fifth heat exchanger and the battery heat exchange structure.

[0013] Optionally, the coolant circulation circuit includes a drive system heat exchange circuit; the drive system heat exchange circuit includes a drive heat exchange structure, a low-temperature radiator, a third multi-way valve and a fourth multi-way valve; the third multi-way valve is used to control the connection and disconnection between the coolant pipeline of the low-temperature radiator and the drive heat exchange structure; the fourth multi-way valve is used to control the connection and disconnection between the coolant pipeline of the first heat exchanger and the drive heat exchange structure.

[0014] Optionally, the second refrigerant circulation loop further includes a sixth heat exchanger; the sixth heat exchanger includes a refrigerant pipe and a coolant pipe;

[0015] The coolant circulation loop also includes a battery heat exchange loop; the battery heat exchange loop includes a battery heat exchange structure and a fifth multi-way valve; the fifth multi-way valve is used to control the connection and disconnection between the coolant pipeline of the sixth heat exchanger and the battery heat exchange structure.

[0016] Optionally, the coolant circulation circuit includes a battery heat exchange circuit and a drive system heat exchange circuit; the drive system heat exchange circuit includes a drive heat exchange structure and a sixth multi-way valve; the battery heat exchange circuit includes a battery heat exchange structure;

[0017] The sixth multi-way valve is used to control the connection and disconnection between the driving heat exchange structure and the battery heat exchange structure.

[0018] Optionally, the coolant circulation loop includes a drive system heat exchange loop; the second refrigerant circulation loop includes a seventh heat exchanger; the seventh heat exchanger includes a refrigerant pipe and a coolant pipe;

[0019] The drive system heat exchange circuit includes a drive heat exchange structure and a seventh multi-way valve; the seventh multi-way valve is used to control the connection and disconnection between the drive heat exchange structure and the coolant pipeline of the seventh heat exchanger.

[0020] Optionally, the second refrigerant circulation loop further includes an eighth heat exchanger; the eighth heat exchanger includes a refrigerant pipe and a coolant pipe;

[0021] The coolant circulation loop also includes a battery heat exchange loop; the battery heat exchange loop includes a battery heat exchange structure and an eighth multi-way valve; the eighth multi-way valve is used to control the connection between the coolant pipe of the eighth heat exchanger and the battery heat exchange structure;

[0022] The second refrigerant circulation circuit further includes a conduction valve and a first compressor; the conduction valve is used to control the first compressor to be connected to the refrigerant pipeline of the second heat exchanger, and the refrigerant pipeline of the second heat exchanger is connected to the refrigerant pipeline of the eighth heat exchanger.

[0023] In a second aspect, the present disclosure further provides a thermal management method, applicable to the thermal management system according to any one of the first aspects, the method comprising:

[0024] determining that the thermal management requirement of the vehicle is a cooling requirement, and controlling the first refrigerant circulation loop to cool;

[0025] It is determined that the thermal management demand of the vehicle is a heating demand, and the second refrigerant circulation loop is controlled to provide heating.

[0026] Optionally, it also includes:

[0027] It is determined that the thermal management requirement of the vehicle is a dehumidification requirement, and the first refrigerant circulation circuit is alternately controlled to cool and the second refrigerant circulation circuit is alternately controlled to heat.

[0028] Optionally, the second refrigerant circulation circuit further includes a sixth heat exchanger; the sixth heat exchanger includes a refrigerant pipe and a coolant pipe; the coolant circulation circuit further includes a battery heat exchange circuit; the battery heat exchange circuit includes a battery heat exchange structure and a fifth multi-way valve;

[0029] When determining that the thermal management requirement of the vehicle is a heating requirement, the heating process of controlling the second refrigerant circulation loop further includes:

[0030] determining that the ambient temperature is less than a first temperature threshold and the battery temperature is greater than a second temperature threshold;

[0031] The coolant pipeline of the sixth heat exchanger is controlled to communicate with the battery heat exchange structure through the fifth multi-way valve.

[0032] Optionally, the coolant circulation circuit includes a battery heat exchange circuit and a drive system heat exchange circuit; the drive system heat exchange circuit includes a drive heat exchange structure and a sixth multi-way valve; the battery heat exchange circuit includes a battery heat exchange structure;

[0033] The method further comprises:

[0034] determining that the battery temperature is less than a third temperature threshold;

[0035] The drive heat exchange structure and the battery heat exchange structure are controlled to communicate with each other through the sixth multi-way valve.

[0036] Optionally, the coolant circulation circuit includes a drive system heat exchange circuit; the second refrigerant circulation circuit includes a seventh heat exchanger; the seventh heat exchanger includes a refrigerant pipe and a coolant pipe; the drive system heat exchange circuit includes a drive heat exchange structure and a seventh multi-way valve;

[0037] The method further comprises:

[0038] determining that the ambient temperature is less than a fourth temperature threshold;

[0039] The seventh multi-way valve controls the coolant pipeline of the driving heat exchange structure to be in communication with the seventh heat exchanger.

[0040] Optionally, the second refrigerant circulation circuit further includes an eighth heat exchanger; the eighth heat exchanger includes a refrigerant pipe and a coolant pipe; the coolant circulation circuit further includes a battery heat exchange circuit; the battery heat exchange circuit includes a battery heat exchange structure and an eighth multi-way valve; the eighth multi-way valve is used to control the coolant pipe of the eighth heat exchanger to be connected to the battery heat exchange structure; the second refrigerant circulation circuit further includes a conduction valve and a first compressor; the conduction valve is used to control the first compressor to be connected to the refrigerant pipe of the second heat exchanger, and the refrigerant pipe of the second heat exchanger is connected to the refrigerant pipe of the eighth heat exchanger;

[0041] The method further comprises:

[0042] Determine that the battery temperature is greater than a fifth temperature threshold, control the coolant pipeline of the eighth heat exchanger to be connected to the battery heat exchange structure through the eighth multi-way valve, control the refrigerant pipeline of the first compressor and the second heat exchanger to be disconnected through the conduction valve, and control the first compressor to compress the refrigerant in the refrigerant pipeline of the second refrigerant circulation loop to cool.

[0043] In a third aspect, the present disclosure further provides a thermal management device, applicable to the thermal management system according to any one of the first aspects, the device comprising:

[0044] a first control module, configured to determine that the thermal management requirement of the vehicle is a cooling requirement, and control the first refrigerant circulation loop to cool;

[0045] The second control module is configured to determine that the thermal management requirement of the vehicle is a heating requirement, and control the second refrigerant circulation loop to provide heating.

[0046] In a fourth aspect, the present disclosure further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of any one of the methods in the second aspect are implemented.

[0047] In a fifth aspect, the present disclosure further provides a vehicle comprising the thermal management system described in any one of the first aspects.

[0048] The present disclosure provides a thermal management system, method, device, medium, and vehicle. The thermal management system includes: a coolant circulation circuit, a first refrigerant circulation circuit for cooling, and a second refrigerant circulation circuit for heating; the first refrigerant circulation circuit includes a first heat exchanger; the second refrigerant circulation circuit includes a second heat exchanger; the first heat exchanger includes a refrigerant pipe and a coolant pipe; the second heat exchanger includes a refrigerant pipe; the coolant pipe of the first heat exchanger is connected to the coolant circulation circuit; the first heat exchanger is a device for transferring heat from the refrigerant pipe of the first refrigerant circulation circuit to the coolant circulation circuit; and the second heat exchanger is a device for transferring heat from the refrigerant in the refrigerant pipe of the second refrigerant circulation circuit to the air. Thus, in the thermal management system provided by the embodiments of the present disclosure, the first refrigerant circulation circuit exchanges heat with the coolant circulation circuit via the heat exchanger, and the second refrigerant circulation circuit exchanges heat with the air via the second heat exchanger. Because the first refrigerant circulation circuit exchanges heat with the coolant circulation circuit via the first heat exchanger, the first heat exchanger does not need to be located near the air intake grille in the front engine compartment of the vehicle. Compared to the prior art which requires setting two heat exchangers for heat exchange with air near the air intake grille of the front engine room of the vehicle, in the embodiment disclosed herein, a second heat exchanger for heat exchange with air can be set near the limited air intake grille of the front engine room of the vehicle, and the first heat exchanger can be set in other free and configurable spaces in the vehicle, so the setting position of the first heat exchanger is more flexible. At the same time, after the first heat exchanger is set in other free and configurable spaces in the vehicle, the second heat exchanger can make full use of the limited position near the air intake grille of the front engine room of the vehicle to fully circulate heat exchange with the ambient air, thereby improving the heat exchange effect. The first heat exchanger is set in other free and configurable spaces in the vehicle to exchange heat with the coolant circulation loop, which can also achieve a better heat exchange effect. Therefore, compared to the prior art, the heat exchange effects of the first heat exchanger and the second heat exchanger are both improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic diagram of the structure of a thermal management system provided in an embodiment of the present disclosure;

[0050] Figure 2 A schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure;

[0051] Figure 3A schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure;

[0052] Figure 4 A schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure;

[0053] Figure 5 A schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure;

[0054] Figure 6 A schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure;

[0055] Figure 7 A schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure;

[0056] Figure 8 A schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure;

[0057] Figure 9 A schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure;

[0058] Figure 10 A schematic diagram of the working principle of a thermal management system provided in an embodiment of the present disclosure;

[0059] Figure 11 A schematic diagram of the working principle of another thermal management system provided in an embodiment of the present disclosure;

[0060] Figure 12 A schematic diagram of the working principle of another thermal management system provided in an embodiment of the present disclosure;

[0061] Figure 13 A schematic diagram of the working principle of another thermal management system provided in an embodiment of the present disclosure;

[0062] Figure 14 A schematic diagram of the working principle of another thermal management system provided in an embodiment of the present disclosure;

[0063] Figure 15 A schematic diagram of the working principle of another thermal management system provided in an embodiment of the present disclosure;

[0064] Figure 16 Schematic diagram of the working principle of another thermal management system provided in an embodiment of the present disclosure

[0065] Figure 17 A schematic diagram of the working principle of another thermal management system provided in an embodiment of the present disclosure;

[0066] Figure 18 A schematic diagram of the structure of an electronic device provided in an embodiment of the present disclosure.

[0067] Reference numerals:

[0068] 11. First refrigerant circulation circuit; 12. Second refrigerant circulation circuit; 13. Coolant circulation circuit; 111. First heat exchanger; 121. Second heat exchanger; 112. Third heat exchanger; 131. Battery heat exchange circuit; 1311. Battery heat exchange structure; 1312. First multi-way valve; 122. Fourth heat exchanger; 132. Warm air heat exchange circuit; 14. Fifth heat exchanger; 1313. Second multi-way valve; 133. Drive system heat exchange circuit; 1331. Drive system heat exchange circuit Dynamic heat exchange structure; 1332, low-temperature radiator; 1333, third multi-way valve; 1334, fourth multi-way valve; 123, sixth heat exchanger; 1314, fifth multi-way valve; 1335, sixth multi-way valve; 124, seventh heat exchanger; 1336, seventh multi-way valve; 125, eighth heat exchanger; 1315, eighth multi-way valve; 126, conduction valve; 127, first compressor; 128, first gas-liquid separator; 113, second compressor; 15, heater core. DETAILED DESCRIPTION

[0069] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0070] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0071] The following is an illustrative description of a thermal management system, method, device, medium, and vehicle provided by embodiments of the present disclosure with reference to the accompanying drawings.

[0072] Figure 1 A schematic structural diagram of a thermal management system provided for an embodiment of the present disclosure includes: a coolant circulation loop 13, a first refrigerant circulation loop 11 for cooling, and a second refrigerant circulation loop 12 for heating; the first refrigerant circulation loop 11 includes a first heat exchanger 111; the second refrigerant circulation loop 12 includes a second heat exchanger 121; the first heat exchanger 111 includes a refrigerant pipe and a coolant pipe; the second heat exchanger 121 includes a refrigerant pipe; the coolant pipe of the first heat exchanger 111 is connected to the coolant circulation loop 13; the first heat exchanger 111 is a device for transferring heat from the refrigerant pipe of the first refrigerant circulation loop 11 to the coolant circulation loop 13; the second heat exchanger 121 is a device for exchanging heat between the refrigerant in the refrigerant pipe of the second refrigerant circulation loop 12 and air.

[0073] For example, the first refrigerant circulation loop 11 can store a first refrigerant, which is mainly used for cooling. It can be R134a, which can also be called 1,1,1,2-tetrafluoroethane in some scenarios, with a chemical formula of C2H2F4. The second refrigerant circulation loop 12 can store a second refrigerant, which can be CO2, i.e., carbon dioxide, as long as it is used for heating. During the cooling process of the first refrigerant circulation loop 11, heat exchange can be performed through the first heat exchanger 111, and during the heating process of the second refrigerant circulation loop 12, heat exchange can be performed through the second heat exchanger 121. That is, the first refrigerant circulation loop 11 and the second refrigerant circulation loop 12 can be realized by the first heat exchanger 111 and the second heat exchanger 121. In fact, the first refrigerant circulation loop exchanges heat with the air through the heat exchanger, and the second refrigerant circulation loop exchanges heat with the coolant circulation loop through the second heat exchanger. Therefore, the first heat exchanger does not need to be set near the air intake grille of the front engine compartment of the vehicle. Compared to the prior art which requires setting two heat exchangers for heat exchange with air near the air intake grille of the front engine room of the vehicle, in the embodiment disclosed herein, a second heat exchanger for heat exchange with air can be set near the limited air intake grille of the front engine room of the vehicle, and the first heat exchanger can be set in other free and configurable spaces in the vehicle, so the setting position of the first heat exchanger is more flexible. At the same time, after the first heat exchanger is set in other free and configurable spaces in the vehicle, the second heat exchanger can make full use of the limited position near the air intake grille of the front engine room of the vehicle to fully circulate heat exchange with the ambient air, thereby improving the heat exchange effect. The first heat exchanger is set in other free and configurable spaces in the vehicle to exchange heat with the coolant circulation loop, which can also achieve a better heat exchange effect. Therefore, compared to the prior art, the heat exchange effects of the first heat exchanger and the second heat exchanger are both improved.

[0074] In some scenarios, since the first refrigerant circulation loop 11 is used only for cooling and the second refrigerant circulation loop 12 is used only for heating, this embodiment can also improve the heat exchange efficiency of the single refrigerant circulation loop and improve the cooling / heating energy efficiency ratio. As for the second refrigerant circulation loop 12, its ability to absorb heat from the outside can also be improved.

[0075] In some embodiments, the second heat exchanger 121 is located at the front cabin air inlet of the vehicle.

[0076] For example, the second heat exchanger 121 may be arranged at the air inlet of the front cabin of the vehicle because it needs to exchange heat with the air. Specifically, the air inlet of the front cabin of the vehicle may be in the air intake grille in front of the vehicle.

[0077] In some embodiments, the first heat exchanger 111 is located in the front cabin of the vehicle.

[0078] For example, since the first heat exchanger 111 does not need to exchange heat with the outside air, it can be arranged more flexibly, that is, it does not need to be arranged at the air inlet of the front engine room of the vehicle, but only needs to be arranged inside the front engine room of the vehicle. More specifically, it can be arranged near the compressor of the thermal management system; in short, since the first heat exchanger 111 does not need to exchange heat with the outside air, it can be arranged at any appropriate position based on the actual space limitations of the vehicle, and does not have to be arranged at the air inlet of the front engine room of the vehicle, thereby improving the layout flexibility of the first heat exchanger 111 and saving and optimizing the layout space.

[0079] Figure 2 This is a schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure. In some embodiments, the first refrigerant circulation loop 11 further includes a third heat exchanger 112; the third heat exchanger 112 includes a refrigerant pipe and a coolant pipe;

[0080] The coolant circulation loop 13 includes a battery heat exchange loop 131 ; the battery heat exchange loop 131 includes a battery heat exchange structure 1311 and a first multi-way valve 1312 ; the first multi-way valve 1312 is used to control the connection between the coolant pipeline of the third heat exchanger 112 and the battery heat exchange structure 1311 .

[0081] For example, based on the third heat exchanger 112, heat exchange between the first refrigerant circulation loop 11 and the battery heat exchange loop 131 can be achieved. The coolant pipeline of the third heat exchanger 112 can be connected to the battery heat exchange structure 1311 through the first multi-way valve 1312. Since the first refrigerant circulation loop 11 can be used for cooling, through the above setting, the first refrigerant circulation loop 11 can exchange heat with the battery heat exchange loop 131, and then the battery heat exchange structure 1311 can exchange heat with the battery, thereby achieving the purpose of cooling the battery.

[0082] Figure 3 A schematic diagram of the structure of another thermal management system provided for an embodiment of the present disclosure, in some embodiments, the second refrigerant circulation loop 12 also includes a fourth heat exchanger 122; the fourth heat exchanger 122 includes a refrigerant pipe and a coolant pipe; the coolant circulation loop 13 includes a warm air heat exchange loop 132; the coolant pipe of the fourth heat exchanger 122 is connected to the warm air heat exchange loop 132.

[0083] For example, since the coolant pipe of the fourth heat exchanger 122 is connected to the warm air heat exchange circuit 132, that is, the second refrigerant circulation circuit 12 can actually exchange heat with the warm air heat exchange circuit 132 through the fourth heat exchanger 122, and since the second refrigerant circulation circuit 12 can be used for heating, the second refrigerant circulation circuit 12 can provide heat to the warm air heat exchange circuit 132 through the fourth heat exchanger 122, and the warm air heat exchange circuit 132 can be used to heat the passenger compartment. That is, through the above setting, the second refrigerant circulation circuit 12 can be used to provide heat to the warm air heat exchange circuit 132 and heat the passenger compartment.

[0084] Figure 4 A schematic diagram of another thermal management system structure provided by an embodiment of the present disclosure, in some embodiments, further includes a fifth heat exchanger 14; the fifth heat exchanger 14 includes a first coolant pipe and a second coolant pipe;

[0085] The coolant circulation loop 13 also includes a battery heat exchange loop 131; the battery heat exchange loop 131 includes a battery heat exchange structure 1311 and a second multi-way valve 1313; the first coolant pipe of the fifth heat exchanger 14 is connected in series to the coolant pipe of the warm air heat exchange loop 132; the second coolant pipe of the fifth heat exchanger 14 is connected in series to the coolant pipe of the battery heat exchange loop 131; the second multi-way valve 1313 is used to control the connection and disconnection between the second coolant pipe of the fifth heat exchanger 14 and the battery heat exchange structure 1311.

[0086] For example, based on the above configuration, since the second coolant pipe of the fifth heat exchanger 14 is connected in series to the coolant pipe of the battery heat exchange circuit 131, and the first coolant pipe of the fifth heat exchanger 14 is connected in series to the coolant pipe of the warm air heat exchange circuit 132, and since the second multi-way valve 1313 is used to control the communication between the second coolant pipe of the fifth heat exchanger 14 and the battery heat exchange structure 1311, the battery heat exchange circuit 131 can actually exchange heat with the warm air heat exchange circuit 132 based on the fifth heat exchanger 14. The second multi-way valve 1313 and the first multi-way valve 1312 can be the same device. Referring to the above embodiment, the warm air heat exchange circuit 132 can exchange heat with the second refrigerant circulation circuit 12, and the warm air heat exchange circuit 132 can exchange heat with the battery heat exchange circuit 131, that is, it is actually realized that the second refrigerant circulation circuit 12 can exchange heat with the battery heat exchange circuit 131, and the second refrigerant circulation circuit 12 can be used for heating. Therefore, through the above setting, the heating effect of the second refrigerant circulation circuit 12 can provide heat to the battery heat exchange circuit 131, and then exchange heat with the battery through the battery heat exchange structure 1311, that is, it can be used to heat the battery.

[0087] Figure 5A schematic diagram of another thermal management system structure provided for an embodiment of the present disclosure, in some embodiments, the coolant circulation loop 13 includes a drive system heat exchange loop 133; the drive system heat exchange loop 133 includes a drive heat exchange structure 1331, a low-temperature radiator 1332, a third multi-way valve 1333 and a fourth multi-way valve 1334; the third multi-way valve 1333 is used to control the connection between the coolant pipeline of the low-temperature radiator 1332 and the drive heat exchange structure 1331; the fourth multi-way valve 1334 is used to control the connection between the coolant pipeline of the first heat exchanger 111 and the drive heat exchange structure 1331.

[0088] For example, the fourth multi-way valve 1334 can be used to control the coolant pipeline of the first heat exchanger 111 to be connected to the driving heat exchange structure 1331, that is, the first refrigerant circulation loop 11 can actually exchange heat with the driving system heat exchange loop 133 / coolant circulation loop 13 based on the action of the fourth multi-way valve 1334; the low-temperature radiator 1332 can be a device for exchanging heat with the outside air, and it can also be arranged at the front engine room air inlet of the vehicle, that is, even with such a setting, there are only two devices for exchanging heat with the air at the front engine room air inlet of the vehicle, which can also effectively reduce the number of heat exchangers; the driving heat exchange structure 1331 can be a device for exchanging heat for the driving system of the vehicle, and the driving system can be a device for driving the vehicle and providing a power source for the vehicle; The multi-way valve 1333 can realize the connection between the low-temperature radiator 1332 and the driving heat exchange structure 1331, that is, the heat exchanged between the driving heat exchange structure 1331 and the driving system can be dissipated into the air through the low-temperature radiator 1332; since the third multi-way valve 1333 and the fourth multi-way valve 1334 can respectively control the connection between the coolant pipeline of the low-temperature radiator 1332 and the driving heat exchange structure 1331, and the connection between the coolant pipeline of the first heat exchanger 111 and the driving heat exchange structure 1331, it is actually possible to realize the simultaneous action of the third multi-way valve 1333 and the fourth multi-way valve 1334, so that the first refrigerant circulation loop 11 can be connected to the low-temperature radiator 1332, and the first refrigerant circulation loop 11 can exchange heat with the outside air through the low-temperature radiator 1332.

[0089] Figure 6 A schematic diagram of another thermal management system structure provided for an embodiment of the present disclosure, in some embodiments, the second refrigerant circulation loop 12 also includes a sixth heat exchanger 123; the sixth heat exchanger 123 includes a refrigerant pipe and a coolant pipe; the coolant circulation loop 13 also includes a battery heat exchange loop 131; the battery heat exchange loop 131 includes a battery heat exchange structure 1311 and a fifth multi-way valve 1314; the fifth multi-way valve 1314 is used to control the connection between the coolant pipe of the sixth heat exchanger 123 and the battery heat exchange structure 1311.

[0090] For example, since the sixth heat exchanger 123 can be connected to the battery heat exchange structure 1311 based on the action of the fifth multi-way valve 1314, it can actually be considered that the second refrigerant circulation loop 12 can exchange heat with the battery heat exchange loop 131; therefore, in some scenarios, the heat obtained by heat exchange between the battery heat exchange structure 1311 and the battery can be exchanged to the second refrigerant circulation loop 12 through the sixth heat exchanger 123; and since the second refrigerant circulation loop 12 can exchange heat with the warm air heat exchange loop 132 through the fourth heat exchanger 122, based on the above setting, it is actually possible to absorb the heat of the battery heat exchange structure 1311 and exchange it to the warm air heat exchange loop 132, that is, the heat of the battery can be used to provide a heat source for the warm air heat exchange loop 132; the warm air heat exchange loop 132 can be used to heat the passenger compartment; and ultimately, the waste heat of the battery can be used to heat the passenger compartment.

[0091] Figure 7 A schematic diagram of another thermal management system structure provided for an embodiment of the present disclosure, in some embodiments, the coolant circulation loop 13 includes a battery heat exchange loop 131 and a drive system heat exchange loop 133; the drive system heat exchange loop 133 includes a drive heat exchange structure 1331 and a sixth multi-way valve 1335; the battery heat exchange loop 131 includes a battery heat exchange structure 1311; the sixth multi-way valve 1335 is used to control the connection between the drive heat exchange structure 1331 and the battery heat exchange structure 1311.

[0092] For example, since the drive heat exchange structure 1331 can be connected to the battery heat exchange structure 1311 through the sixth multi-way valve 1335, in some scenarios, the drive heat exchange structure 1331 can absorb heat from the drive system and directly transfer it to the battery heat exchange structure 1311 for heating the battery, thereby realizing the utilization of the waste heat of the drive system.

[0093] Figure 8 A schematic diagram of another thermal management system structure provided for an embodiment of the present disclosure, in some embodiments, the coolant circulation loop 13 includes a drive system heat exchange loop 133; the second refrigerant circulation loop 12 includes a seventh heat exchanger 124; the seventh heat exchanger 124 includes a refrigerant pipe and a coolant pipe; the drive system heat exchange loop 133 includes a drive heat exchange structure 1331 and a seventh multi-way valve 1336; the seventh multi-way valve 1336 is used to control the connection between the drive heat exchange structure 1331 and the coolant pipe of the seventh heat exchanger 124.

[0094] For example, since the coolant pipeline connecting the drive heat exchange structure 1331 to the seventh heat exchanger 124 can be controlled by the seventh multi-way valve 1336, the drive system heat exchange circuit 133 can actually exchange heat with the second refrigerant circulation circuit 12 based on the action of the seventh multi-way valve 1336. That is, the heat of the drive heat exchange structure 1331 can be transferred to the second refrigerant circulation circuit 12. Moreover, since the second refrigerant circulation circuit 12 can exchange heat with the warm air heat exchange circuit 132 via the fourth heat exchanger 122, the heat of the second refrigerant circulation circuit 12 can be transferred to the warm air heat exchange circuit 132. That is, the heat of the drive heat exchange structure 1331 can be used to provide heat for the warm air heat exchange circuit 132, and the warm air heat exchange circuit 132 can be used to heat the passenger compartment. Therefore, the above arrangement can realize the utilization of waste heat from the drive system to heat the passenger compartment.

[0095] Figure 9 A schematic diagram of another thermal management system structure provided for an embodiment of the present disclosure, in some embodiments, the second refrigerant circulation loop 12 also includes an eighth heat exchanger 125; the eighth heat exchanger 125 includes a refrigerant pipe and a coolant pipe; the coolant circulation loop 13 also includes a battery heat exchange loop 131; the battery heat exchange loop 131 includes a battery heat exchange structure 1311 and an eighth multi-way valve 1315; the eighth multi-way valve 1315 is used to control the connection between the coolant pipe of the eighth heat exchanger 125 and the battery heat exchange structure 1311; the second refrigerant circulation loop 12 also includes a conduction valve 126 and a first compressor 127; the conduction valve 126 is used to control the connection between the first compressor 127 and the refrigerant pipe of the second heat exchanger 121, and the refrigerant pipe of the second heat exchanger 121 is connected to the refrigerant pipe of the eighth heat exchanger 125.

[0096] For example, since the refrigerant pipeline of the first compressor 127 can be controlled to communicate with the second heat exchanger 121 via the conduction valve 126, and since the refrigerant pipeline of the second heat exchanger 121 is connected to the refrigerant pipeline of the eighth heat exchanger 125, the second refrigerant that has passed through the first compressor 127 can first be dissipated through the second heat exchanger 121 before flowing to the eighth heat exchanger 125. Based on the action of the eighth heat exchanger 125, heat is exchanged with the battery heat exchange circuit 131. The battery heat exchange circuit 131 may include a battery heat exchange structure 1311, which can be used to exchange heat with the battery. Therefore, the above configuration can achieve battery cooling based on the second refrigerant circulation loop 12; wherein, the eighth heat exchanger 125 can be the same device as the seventh heat exchanger 124.

[0097] The present disclosure also provides a thermal management method applicable to a thermal management system as described in any of the above thermal management system embodiments, the method comprising:

[0098] Determining that the thermal management requirement of the vehicle is a cooling requirement, and controlling the first refrigerant circulation loop 11 to cool;

[0099] The thermal management demand of the vehicle is determined to be a heating demand, and the second refrigerant circulation loop 12 is controlled to provide heating.

[0100] For example, based on the settings of the above-mentioned thermal management system, the thermal management requirements of the vehicle can be determined. If the thermal management requirement of the vehicle is a cooling requirement, the first refrigerant circulation loop 11 can be controlled to perform cooling; conversely, if the thermal management requirement of the vehicle is a heating requirement, the second refrigerant circulation loop 12 can be controlled to perform heating. In some scenarios, different refrigerant circulation loops can be controlled to operate based on different thermal management requirements, so that the thermal management system and thermal management method provided in the embodiments of the present disclosure can adopt different thermal management strategies based on different thermal management requirements to adapt to various working conditions. In addition, since the thermal management method provided in the embodiments of the present disclosure is applicable to the above-mentioned thermal management system embodiments, it can also achieve the same or at least similar technical effects as the above-mentioned thermal management system.

[0101] Figure 10 This is a schematic diagram of the working principle of a thermal management system provided by an embodiment of the present disclosure. In some embodiments, the first refrigerant circulation loop 11 includes a third heat exchanger 112; the third heat exchanger 112 includes a refrigerant pipe and a coolant pipe; the coolant circulation loop 13 includes a battery heat exchange loop 131; the battery heat exchange loop 131 includes a battery heat exchange structure 1311 and a first multi-way valve 1312;

[0102] Determining that the thermal management requirement of the vehicle is a cooling requirement, and controlling the first refrigerant circulation loop 11 for cooling includes:

[0103] Determine that the vehicle's thermal management requirement is a cooling requirement, and the cooling requirement includes passenger compartment cooling and battery cooling. Control the cooling of the first refrigerant circulation loop 11, and control the coolant pipeline of the third heat exchanger 112 to be connected to the battery heat exchange structure 1311 through the first multi-way valve 1312.

[0104] Exemplarily, the coolant pipeline of the third heat exchanger 112 can be controlled to be connected to the battery heat exchange structure 1311 by the first multi-way valve 1312. In addition, the first coolant circulation loop 13 can also be connected to the heater core 15. The heater core 15 is a device for exchanging heat with the passenger compartment to meet the heating or cooling needs of the passenger compartment; at this time, port 1 and port 3 of the third multi-way valve 1333 can be in a conducting state, and port 2 and port 3 of the fourth multi-way valve 1334 can be in a conducting state. The figure indicates the overall circuit and the flow direction of the coolant and refrigerant by bolding and arrows. On this basis, its overall working principle is as follows: after the second compressor 113 provided in the first refrigerant circulation loop 11 compresses the first refrigerant, the coolant in the coolant circulation loop 13 exchanges heat with the first refrigerant in the first refrigerant circulation loop 11 through the first heat exchanger 111, and the heat in the first refrigerant is exchanged to the coolant circulation loop 13. The coolant circulation loop 13 connects the coolant to the low-temperature radiator 1332 based on the functions of the third multi-way valve 1333 and the fourth multi-way valve 1334, so as to dissipate the heat to the outside air through the low-temperature radiator 1332, and then flows back to the first heat exchanger 111 again; after the coolant circulation loop 13 is connected to the first refrigerant in the coolant circulation loop 13, the coolant is cooled and the heat is discharged to the outside air through the low-temperature radiator 1332. The first refrigerant in the first refrigerant circulation loop 11 that exchanges heat with the third heat exchanger 113 is in a low-temperature state and flows to the third heat exchanger 112 and the heater core 15 respectively; the first refrigerant circulation loop 11 that flows to the heater core 15 can cool the passenger compartment, that is, absorb heat from the passenger compartment, and then flow back to the second compressor 113; the first refrigerant circulation loop 111 that flows to the third heat exchanger 112 can exchange heat with the battery heat exchange loop 131 through the third heat exchanger 112, absorbing heat from the battery heat exchange loop 131, and the heat in the battery heat exchange loop 131 comes from the battery heat exchange structure 1311. The battery heat exchange structure 1311 exchanges heat with the battery, that is, cooling the battery. Based on the above process, the passenger compartment and battery can be cooled by the first refrigerant circulation loop 11, that is, cooling the passenger compartment and battery.

[0105] Figure 11 This is a schematic diagram of the working principle of another thermal management system provided by an embodiment of the present disclosure. In some embodiments, the second refrigerant circulation loop 12 further includes a fourth heat exchanger 122; the fourth heat exchanger 122 includes a refrigerant pipe and a coolant pipe; the coolant circulation loop 13 includes a warm air heat exchange loop 132; the coolant pipe of the fourth heat exchanger 122 is connected to the warm air heat exchange loop 132;

[0106] Determining that the thermal management requirement of the vehicle is a heating requirement, and controlling the second refrigerant circulation loop 12 for heating includes:

[0107] The vehicle's thermal management requirement is determined to be a heating requirement, and the heating requirement includes heating the passenger compartment. The second refrigerant circulation loop 12 is controlled to heat, and the second refrigerant circulation loop 12 is controlled to dissipate heat to the warm air heat exchange loop 132 through the fourth heat exchanger 122 .

[0108] For example, the first compressor 127 in the first refrigerant circulation loop 11 can compress the first refrigerant in the first refrigerant circulation loop 11. The compressed first refrigerant is in a high-temperature state and exchanges heat with the warm air heat exchange loop 132 through the fourth heat exchanger 122, and exchanges heat to the warm air heat exchange loop 132. The warm air heat exchange loop 132 can be connected to the warm air core 15. Referring to the above embodiment, based on the warm air core 15, the heat in the warm air heat exchange loop 132 can be dissipated to the passenger cabin, that is, a heating effect is provided for the passenger cabin; After being heated, the coolant in the warm air heat exchange circuit 132 is at a low temperature and flows back to the fourth heat exchanger 122 for heat exchange. After heat exchange with the warm air heat exchange circuit 132, the second refrigerant in the second refrigerant circulation circuit 12 is at a low temperature. The second refrigerant circulation circuit 12 can be connected to the second heat exchanger 121, where it exchanges heat with the outside air. This effectively absorbs heat from the air and flows back to the first gas-liquid separator 128 in the second refrigerant circulation circuit 12, ultimately returning to the first compressor 127. Based on the above process, the passenger compartment can be heated via the second refrigerant circulation circuit 12.

[0109] Figure 12 A schematic diagram of the working principle of another thermal management system provided in an embodiment of the present disclosure, in some embodiments, the thermal management system also includes a fifth heat exchanger 14; the fifth heat exchanger 14 includes a first coolant pipe and a second coolant pipe; the coolant circulation loop 13 also includes a battery heat exchange loop 131; the battery heat exchange loop 131 includes a battery heat exchange structure 1311 and a second multi-way valve 1313; the first coolant pipe of the fifth heat exchanger 14 is connected in series to the coolant pipe of the warm air heat exchange loop 132; the second coolant pipe of the fifth heat exchanger 14 is connected in series to the coolant pipe of the battery heat exchange loop 131.

[0110] For example, the first compressor 127 in the first refrigerant circulation loop 11 can compress the first refrigerant in the first refrigerant circulation loop 11. The compressed first refrigerant is in a high-temperature state and exchanges heat with the warm air heat exchange loop 132 through the fourth heat exchanger 122 to exchange heat to the warm air heat exchange loop 132. The warm air heat exchange loop 132 can be connected to the warm air core 15. Referring to the above embodiment, based on the warm air core 15, the heat in the warm air heat exchange loop 132 can be dissipated to the passenger compartment, that is, to provide a heating effect for the passenger compartment; in addition, the warm air heat exchange loop 132 can exchange heat with the battery heat exchange loop 131 through the fifth heat exchanger 14. At this time, port 2 and port 3 of the first multi-way valve 1312 are in a conducting state; the heat in the warm air heat exchange loop 132 is exchanged to the battery heat exchange loop 131, and the battery heat exchange loop 131 is heated. The coolant in the heat exchange circuit 131 stores heat and provides a heating effect for the battery through the battery heat exchange structure 1311, that is, it actually exchanges heat to the battery. After the heat exchange is completed, the coolant in the battery heat exchange circuit 131 flows back to the fifth heat exchanger 14 to exchange heat with the warm air heat exchange circuit 132. After dissipating heat, the coolant in the warm air heat exchange circuit 132 is at a low temperature and flows back to the fourth heat exchanger 122 for heat exchange. The second refrigerant in the second refrigerant circulation circuit 12 is at a low temperature after heat exchange with the warm air heat exchange circuit 132. The second refrigerant circulation circuit 12 can be connected to the second heat exchanger 121, and heat is exchanged with the outside air through the second heat exchanger 121, that is, it can actually absorb heat from the air and connect to the first gas-liquid separator 128 in the second refrigerant circulation circuit 12, and finally flow back to the first compressor 127. Based on the above process, the passenger compartment and battery can be heated through the second refrigerant circulation circuit 12.

[0111] In some embodiments, further comprising:

[0112] It is determined that the thermal management requirement of the vehicle is a dehumidification requirement, and the first refrigerant circulation loop 11 is controlled to cool and the second refrigerant circulation loop 12 is controlled to heat alternately.

[0113] For example, the general dehumidification process is a cooling process. Its operating principle and process can be referred to the process of cooling the passenger compartment via the first refrigerant circulation loop 11 described above, and will not be further described here. However, after cooling, it is still necessary to provide heat to the passenger compartment. In other words, it is not possible to simply cool the passenger compartment to maintain a low temperature. Instead, a heating process is added to the passenger compartment to keep the temperature within a certain temperature range. The heating process can be referred to the process of heating the passenger compartment via the second refrigerant circulation loop 12 described above, and will not be further described here. In other words, through the above-mentioned configuration, dehumidification of the passenger compartment can be achieved while maintaining the passenger compartment temperature within a certain temperature range.

[0114] Figure 13This is a schematic diagram of the working principle of another thermal management system provided by an embodiment of the present disclosure. In some embodiments, the second refrigerant circulation loop 12 further includes a sixth heat exchanger 123; the sixth heat exchanger 123 includes a refrigerant pipe and a coolant pipe; the coolant circulation loop 13 further includes a battery heat exchange loop 131; the battery heat exchange loop 131 includes a battery heat exchange structure 1311 and a fifth multi-way valve 1314;

[0115] When it is determined that the thermal management requirement of the vehicle is a heating requirement, the heating process of controlling the second refrigerant circulation loop 12 further includes:

[0116] determining that the ambient temperature is less than a first temperature threshold and the battery temperature is greater than a second temperature threshold;

[0117] The coolant pipe of the sixth heat exchanger 123 is controlled to communicate with the battery heat exchange structure 1311 through the fifth multi-way valve 1314 .

[0118] For example, the first temperature threshold may be an ambient temperature threshold, such as 10° C., which indicates a real-time ambient temperature. In theory, the passenger compartment needs to be heated to ensure that the temperature inside the passenger compartment does not drop too low. The second temperature threshold may be a battery temperature threshold. The battery may be a storage device in the vehicle that provides electrical energy to the drive system and continuously generates heat during operation. When the battery temperature is greater than the second temperature threshold, it may be considered that the battery urgently needs to dissipate heat, or it may be considered that when the battery temperature is greater than the second temperature threshold, sufficient heat can be provided to the second refrigerant circulation loop 12 for heating the passenger compartment.

[0119] Under this premise, the coolant pipeline of the sixth heat exchanger 123 can be controlled to communicate with the battery heat exchange structure 1311 via the fifth multi-way valve 1314. At this time, ports 1 and 3 of the fifth multi-way valve 1314 are in a conducting state, and ports 2 and 3 of the second multi-way valve 1313 are in a conducting state. After the coolant pipeline of the sixth heat exchanger 123 is connected to the battery heat exchange structure 1311, the heat of the battery can be transferred to the battery heat exchange circuit 131 through the battery heat exchange structure 1311, and further transferred to the second refrigerant circulation circuit 12 through the sixth heat exchanger 123. As a result, the second refrigerant in the second refrigerant circulation circuit 12 gains heat and is compressed by the first compressor 127 to produce a high-temperature second refrigerant. This heat can then be transferred to the heater heat exchange circuit 132 through the fourth heat exchanger 122, and ultimately used to heat the heater core 15, which can then be used to heat the passenger compartment. Therefore, the above configuration can achieve the goal of utilizing the heat of the battery to heat the passenger compartment.

[0120] Figure 14This is a schematic diagram of the working principle of another thermal management system provided by an embodiment of the present disclosure. In some embodiments, the coolant circulation loop 13 includes a battery heat exchange loop 131 and a drive system heat exchange loop 133; the drive system heat exchange loop 133 includes a drive heat exchange structure 1331 and a sixth multi-way valve 1335; the battery heat exchange loop 131 includes a battery heat exchange structure 1311;

[0121] The method also includes:

[0122] determining that the battery temperature is less than a third temperature threshold;

[0123] The sixth multi-way valve 1335 controls the driving heat exchange structure 1331 to communicate with the battery heat exchange structure 1311 .

[0124] For example, in some scenarios, the drive system may generate heat during operation. When the battery temperature is less than a third temperature threshold, it may be considered that the battery needs to be heated. In this case, the heat from the drive system may be used to heat the battery. The specific process may be as follows: after the drive heat exchange structure 1331 exchanges heat with the drive system, the coolant in the drive system heat exchange circuit 133 stores the heat from the drive system. At this time, ports 1 and 3 of the sixth multi-way valve 1335 are in a conducting state, and the coolant passes through the sixth multi-way valve 1335 and is connected to the battery heat exchange circuit 131. Ports 1 and 3 of the fifth multi-way valve 1314 in the battery heat exchange circuit 131 are in a conducting state, and the second multi-way valve 1313 is in a closed state. Therefore, the coolant storing heat can flow to the battery heat exchange structure 1311 to heat the battery. The heated coolant then flows back to the drive heat exchange structure 1331. In this way, through the above-mentioned configuration and method, it is possible to heat the battery using the heat from the drive system.

[0125] Figure 15 This is a schematic diagram of the working principle of another thermal management system provided by an embodiment of the present disclosure. In some embodiments, the coolant circulation loop 13 includes a drive system heat exchange loop 133; the second refrigerant circulation loop 12 includes a seventh heat exchanger 124; the seventh heat exchanger 124 includes a refrigerant pipe and a coolant pipe; the drive system heat exchange loop 133 includes a drive heat exchange structure 1331 and a seventh multi-way valve 1336;

[0126] The method also includes:

[0127] determining that the ambient temperature is less than a fourth temperature threshold;

[0128] The seventh multi-way valve 1336 controls the driving of the heat exchange structure 1331 to communicate with the coolant pipeline of the seventh heat exchanger 124 .

[0129] For example, in some scenarios, the operation of the drive system can generate heat, and when the ambient temperature is less than the fourth temperature threshold, it can be considered that the passenger compartment needs to be heated; in some scenarios, the fourth temperature threshold and the first temperature threshold in the above embodiment can be the same threshold; at this time, the heat of the drive system can be used to heat the passenger compartment, and the specific process can be: after the drive heat exchange structure 1331 exchanges heat with the drive system, the coolant in the drive system heat exchange circuit 133 stores the heat of the drive system, and at this time, the port 1 and port 3 of the seventh multi-way valve 1336 are in the conducting state, and the coolant is connected to the battery heat exchange circuit 131 through the seventh multi-way valve 1336. The seventh multi-way valve 1336 and the sixth multi-way valve 1335 can be the same device; the fifth multi-way valve 1314 is in the closed state, and the second multi-way valve 1313 is in the closed state. Ports 1 and 2 are in a conductive state. The heat-storing coolant exchanges heat with the second refrigerant circuit 12 through the seventh heat exchanger 124. The seventh heat exchanger 124 and the sixth heat exchanger 123 can be the same device. After absorbing heat, the second refrigerant in the second refrigerant circuit 12 flows through the first gas-liquid separator 128 in the second refrigerant circuit 12 for gas-liquid separation. It then flows through the first compressor 127, which compresses the second refrigerant to produce a high-temperature first refrigerant. The second refrigerant then exchanges heat with the heater heat exchange circuit 132 through the fourth heat exchanger 122. The heater heat exchange circuit 132 can heat the passenger compartment through the heater core 15. The second refrigerant, having completed heat exchange with the heater heat exchange circuit 132, flows through the seventh heat exchanger 124 and exchanges heat again with the battery heat exchange circuit 131. In this way, the heat of the drive system is effectively used to heat the passenger compartment. Therefore, the above-described arrangement and method can recover the heat of the drive system for heating the passenger compartment.

[0130] Figure 16 A schematic diagram of the working principle of another thermal management system provided in an embodiment of the present disclosure. In some embodiments, the second refrigerant circulation loop 12 further includes an eighth heat exchanger 125; the eighth heat exchanger 125 includes a refrigerant pipeline and a coolant pipeline; the coolant circulation loop 13 further includes a battery heat exchange loop 131; the battery heat exchange loop 131 includes a battery heat exchange structure 1311 and an eighth multi-way valve 1315; the eighth multi-way valve 1315 is used to control the connection between the coolant pipeline of the eighth heat exchanger 125 and the battery heat exchange structure 1311; the second refrigerant circulation loop 12 further includes a conduction valve 126 and a first compressor 127; the conduction valve 126 is used to control the connection between the first compressor 127 and the refrigerant pipeline of the second heat exchanger 121, and the connection between the refrigerant pipeline of the second heat exchanger 121 and the refrigerant pipeline of the eighth heat exchanger 125;

[0131] The method also includes:

[0132] Determine that the battery temperature is greater than the fifth temperature threshold, control the coolant pipeline of the eighth heat exchanger 125 to be connected to the battery heat exchange structure 1311 through the eighth multi-way valve 1315, control the first compressor 127 to be disconnected from the refrigerant pipeline of the second heat exchanger 121 through the conduction valve 126, and control the first compressor 127 to compress the refrigerant in the refrigerant pipeline of the second refrigerant circulation loop 12 for cooling.

[0133] For example, in some scenarios, the battery may need to dissipate more heat per unit time, that is, the cooling capacity requirement is large, which may cause the first refrigerant circulation loop 11 alone to be unable to meet the cooling demand, that is, at this time the battery temperature is greater than the fifth temperature threshold, and the first refrigerant circulation loop 11 and the second refrigerant circulation loop 12 can be controlled to cool at the same time; the cooling process through the first refrigerant circulation loop 11 can refer to the process of cooling the passenger compartment and the battery through the first refrigerant circulation loop 11 in the above embodiment, and will not be repeated here; the cooling process through the second refrigerant circulation loop 12, its working principle can be: after the first compressor 127 compresses the second refrigerant, it is connected to the second heat exchanger 121 based on the action of the conduction valve 126, and heat is dissipated to the outside air through the second heat exchanger 121; the second refrigerant that dissipates heat is connected to the eighth heat exchanger 125, The eighth heat exchanger 125 and the seventh heat exchanger 124 can be the same device. Through the action of the eighth heat exchanger 125, the second refrigerant in the second refrigerant circulation circuit 12 can exchange heat with the battery heat exchange circuit 131. At this time, ports 1 and 3 of the eighth multi-way valve 1315 can be in a conductive state, and ports 1 and 2 of the second multi-way valve 1313 can also be in a conductive state. It should be noted that although the cooling process through the first refrigerant circulation circuit 11 is not described in detail here, it is clear that port 3 of the second multi-way valve 1313 is also in a conductive state at this time, and the battery heat exchange circuit 131 needs to be connected to the third heat exchanger 112 to exchange heat with the first refrigerant circulation circuit 11. After completing the heat exchange with the second refrigerant circulation circuit 12, the battery heat exchange circuit 131 can continue to absorb heat from the battery and return to the eighth heat exchanger 125 to exchange heat with the eighth heat exchanger 125. In this way, through the above-mentioned configuration and method, it is possible to simultaneously control the first refrigerant circulation circuit 11 and the second refrigerant circulation circuit 12 to cool the battery.

[0134] Figure 17A schematic diagram of the working principle of another thermal management system provided for an embodiment of the present disclosure. In some embodiments, the drive system heat exchange circuit 133 can also complete the heat exchange process by itself to keep the drive system warm. For example, the heat generated by the drive system during operation can be self-circulated through the drive system heat exchange circuit 133 to improve the temperature uniformity of the drive system. At this time, port 1 and port 2 of the third multi-way valve 1333 are in the on state, and port 1 and port 2 of the fourth multi-way valve 1334 are in the on state.

[0135] The present disclosure also provides a thermal management device, applicable to any of the thermal management system embodiments described above, comprising:

[0136] a first control module, configured to determine that the thermal management requirement of the vehicle is a cooling requirement, and control the first refrigerant circulation loop to cool;

[0137] The second control module is configured to determine that the thermal management requirement of the vehicle is a heating requirement, and control the second refrigerant circulation loop to provide heating.

[0138] The embodiments of the present disclosure further provide a computer-readable storage medium, which stores a program or instruction. The program or instruction enables a computer to execute the steps of any one of the methods provided in the above embodiments.

[0139] In some embodiments, when executed by a computer processor, the computer executable instructions can also be used to execute the technical solution of the above-mentioned thermal management method provided in the embodiment of the present disclosure to achieve corresponding beneficial effects.

[0140] An embodiment of the present disclosure further provides an electronic device, comprising: a processor and a memory; the processor calls a program or instruction stored in the memory to execute the steps of any one of the methods provided in the above embodiments to achieve corresponding beneficial effects.

[0141] Figure 18 This is a schematic diagram of the structure of an electronic device provided by an embodiment of the present disclosure. Figure 18 As shown, the electronic device includes one or more processors 1801 and a memory 1802 .

[0142] The processor 1801 may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device to perform desired functions.

[0143] The memory 1802 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The non-volatile memory may include, for example, read-only memory (ROM), a hard disk, a flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 1801 may execute the program instructions to implement the methods of the embodiments of the present disclosure described above, and / or other desired functions. Various contents such as input signals, signal components, noise components, etc. may also be stored in the computer-readable storage medium.

[0144] In one example, the electronic device may further include an input device 1803 and an output device 1804 , and these components are interconnected via a bus system and / or other forms of connection mechanisms (not shown).

[0145] In addition, the input device 1803 may also include, for example, a keyboard, a mouse, and the like.

[0146] The output device 1804 can output various information to the outside, including determined distance information, direction information, etc. The output device 1804 can include, for example, a display, a speaker, a printer, a communication network and its connected remote output device, etc.

[0147] Of course, to simplify, Figure 18 Only some of the components related to the present disclosure in the electronic device are shown, and components such as a bus, an input / output interface, etc. are omitted. In addition, the electronic device may further include any other appropriate components according to specific application scenarios.

[0148] The embodiments of the present disclosure also provide a vehicle, which may include a thermal management system as in the above-mentioned thermal management system embodiments, to achieve the same technical effects as the above-mentioned thermal management system embodiments.

[0149] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0150] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A thermal management system, characterized in that: include: a coolant circulation circuit, a first refrigerant circulation circuit for cooling, and a second refrigerant circulation circuit for heating; The first refrigerant circulation circuit includes a first heat exchanger; the second refrigerant circulation circuit includes a second heat exchanger; the first heat exchanger includes a refrigerant pipe and a coolant pipe; the second heat exchanger includes a refrigerant pipe; the coolant pipe of the first heat exchanger is connected to the coolant circulation circuit; The first heat exchanger is a device for transferring heat from the refrigerant pipe of the first refrigerant circulation circuit to the coolant circulation circuit; the second heat exchanger is a device for exchanging heat between the refrigerant in the refrigerant pipe of the second refrigerant circulation circuit and the air; The second heat exchanger is arranged at the front air inlet of the vehicle.

2. The thermal management system according to claim 1, characterized in that The first refrigerant circulation loop further includes a third heat exchanger; the third heat exchanger includes a refrigerant pipe and a coolant pipe; The coolant circulation loop includes a battery heat exchange loop; the battery heat exchange loop includes a battery heat exchange structure and a first multi-way valve; the first multi-way valve is used to control the connection and disconnection between the coolant pipeline of the third heat exchanger and the battery heat exchange structure.

3. The thermal management system according to claim 1, wherein: The second refrigerant circulation loop further includes a fourth heat exchanger; the fourth heat exchanger includes a refrigerant pipe and a coolant pipe; The coolant circulation loop includes a warm air heat exchange loop; the coolant pipeline of the fourth heat exchanger is connected to the warm air heat exchange loop.

4. The thermal management system according to claim 3, characterized in that: Also included is a fifth heat exchanger; the fifth heat exchanger includes a first coolant pipe and a second coolant pipe; The coolant circulation loop also includes a battery heat exchange loop; the battery heat exchange loop includes a battery heat exchange structure and a second multi-way valve; the first coolant pipe of the fifth heat exchanger is connected in series to the coolant pipe of the warm air heat exchange loop; the second coolant pipe of the fifth heat exchanger is connected in series to the coolant pipe of the battery heat exchange loop; the second multi-way valve is used to control the connection and disconnection between the second coolant pipe of the fifth heat exchanger and the battery heat exchange structure.

5. The thermal management system according to claim 1, wherein: The coolant circulation circuit includes a drive system heat exchange circuit; the drive system heat exchange circuit includes a drive heat exchange structure, a low-temperature radiator, a third multi-way valve and a fourth multi-way valve; the third multi-way valve is used to control the connection and disconnection between the coolant pipeline of the low-temperature radiator and the drive heat exchange structure; the fourth multi-way valve is used to control the connection and disconnection between the coolant pipeline of the first heat exchanger and the drive heat exchange structure.

6. The thermal management system according to claim 1, wherein: The second refrigerant circulation loop further includes a sixth heat exchanger; the sixth heat exchanger includes a refrigerant pipe and a coolant pipe; The coolant circulation loop also includes a battery heat exchange loop; the battery heat exchange loop includes a battery heat exchange structure and a fifth multi-way valve; the fifth multi-way valve is used to control the connection and disconnection between the coolant pipeline of the sixth heat exchanger and the battery heat exchange structure.

7. The thermal management system according to claim 1, wherein: The coolant circulation circuit includes a battery heat exchange circuit and a drive system heat exchange circuit; the drive system heat exchange circuit includes a drive heat exchange structure and a sixth multi-way valve; the battery heat exchange circuit includes a battery heat exchange structure; The sixth multi-way valve is used to control the connection and disconnection between the driving heat exchange structure and the battery heat exchange structure.

8. The thermal management system according to claim 1, wherein: The coolant circulation loop includes a drive system heat exchange loop; the second refrigerant circulation loop includes a seventh heat exchanger; the seventh heat exchanger includes a refrigerant pipe and a coolant pipe; The drive system heat exchange circuit includes a drive heat exchange structure and a seventh multi-way valve; the seventh multi-way valve is used to control the connection and disconnection between the drive heat exchange structure and the coolant pipeline of the seventh heat exchanger.

9. The thermal management system according to any one of claims 1 to 8, characterized in that: The second refrigerant circulation circuit further includes an eighth heat exchanger; the eighth heat exchanger includes a refrigerant pipe and a coolant pipe; The coolant circulation loop also includes a battery heat exchange loop; the battery heat exchange loop includes a battery heat exchange structure and an eighth multi-way valve; the eighth multi-way valve is used to control the connection between the coolant pipe of the eighth heat exchanger and the battery heat exchange structure; The second refrigerant circulation circuit further includes a conduction valve and a first compressor; the conduction valve is used to control the first compressor to be connected to the refrigerant pipeline of the second heat exchanger, and the refrigerant pipeline of the second heat exchanger is connected to the refrigerant pipeline of the eighth heat exchanger.

10. A thermal management method, characterized in that: Applicable to the thermal management system according to any one of claims 1 to 9, the method comprising: determining that the thermal management requirement of the vehicle is a cooling requirement, and controlling the first refrigerant circulation loop to cool; It is determined that the thermal management demand of the vehicle is a heating demand, and the second refrigerant circulation loop is controlled to provide heating.

11. The method according to claim 10, characterized in that Also includes: It is determined that the thermal management requirement of the vehicle is a dehumidification requirement, and the first refrigerant circulation circuit is alternately controlled to cool and the second refrigerant circulation circuit is alternately controlled to heat.

12. The method according to claim 10, characterized in that The second refrigerant circulation circuit further includes a sixth heat exchanger; the sixth heat exchanger includes a refrigerant pipe and a coolant pipe; the coolant circulation circuit further includes a battery heat exchange circuit; the battery heat exchange circuit includes a battery heat exchange structure and a fifth multi-way valve; When determining that the thermal management requirement of the vehicle is a heating requirement, the heating process of controlling the second refrigerant circulation loop further includes: determining that the ambient temperature is less than a first temperature threshold and the battery temperature is greater than a second temperature threshold; The coolant pipeline of the sixth heat exchanger is controlled to communicate with the battery heat exchange structure through the fifth multi-way valve.

13. The method according to claim 10, characterized in that The coolant circulation circuit includes a battery heat exchange circuit and a drive system heat exchange circuit; the drive system heat exchange circuit includes a drive heat exchange structure and a sixth multi-way valve; the battery heat exchange circuit includes a battery heat exchange structure; The method further comprises: determining that the battery temperature is less than a third temperature threshold; The drive heat exchange structure and the battery heat exchange structure are controlled to communicate with each other through the sixth multi-way valve.

14. The method according to claim 10, characterized in that The coolant circulation circuit includes a drive system heat exchange circuit; the second refrigerant circulation circuit includes a seventh heat exchanger; the seventh heat exchanger includes a refrigerant pipe and a coolant pipe; the drive system heat exchange circuit includes a drive heat exchange structure and a seventh multi-way valve; The method further comprises: determining that the ambient temperature is less than a fourth temperature threshold; The seventh multi-way valve controls the coolant pipeline of the driving heat exchange structure to be in communication with the seventh heat exchanger.

15. The method according to claim 10, characterized in that The second refrigerant circulation circuit further includes an eighth heat exchanger; the eighth heat exchanger includes a refrigerant pipeline and a coolant pipeline; the coolant circulation circuit further includes a battery heat exchange circuit; the battery heat exchange circuit includes a battery heat exchange structure and an eighth multi-way valve; the eighth multi-way valve is used to control the connection and disconnection between the coolant pipeline of the eighth heat exchanger and the battery heat exchange structure; the second refrigerant circulation circuit further includes a conduction valve and a first compressor; the conduction valve is used to control the connection and disconnection between the first compressor and the refrigerant pipeline of the second heat exchanger, and the refrigerant pipeline of the second heat exchanger is connected to the refrigerant pipeline of the eighth heat exchanger; The method further comprises: Determine that the battery temperature is greater than a fifth temperature threshold, control the coolant pipeline of the eighth heat exchanger to be connected to the battery heat exchange structure through the eighth multi-way valve, control the refrigerant pipeline of the first compressor to be connected to the second heat exchanger through the conduction valve, and control the first compressor to compress the refrigerant in the refrigerant pipeline of the second refrigerant circulation loop to cool.

16. A thermal management device, characterized in that: Applicable to a thermal management system according to any one of claims 1 to 9, the device comprising: a first control module, configured to determine that the thermal management requirement of the vehicle is a cooling requirement, and control the first refrigerant circulation loop to cool; The second control module is configured to determine that the thermal management requirement of the vehicle is a heating requirement, and control the second refrigerant circulation loop to provide heating.

17. A computer-readable storage medium, characterized in that The storage medium stores a computer program, which, when executed by a processor, implements the steps of the method according to any one of claims 10 to 15.

18. A vehicle, characterized in that: A thermal management system comprising the thermal management system according to any one of claims 1 to 9.

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