CN219989043U - Thermal management system and vehicle - Google Patents

Abstract

The utility model provides a thermal management system and a vehicle, comprising a battery heat dissipation loop and a charging heat dissipation loop; the battery cooling loop comprises a first low-temperature radiator, the battery assembly and the first low-temperature radiator are connected to form a first cooling loop, the battery cooling loop further comprises a first sub cooling loop and a second sub cooling loop, the first sub cooling loop comprises a first evaporative cooler, the battery assembly is connected with the first evaporative cooler, the second sub cooling loop comprises a compressor and a condenser, the compressor, the condenser and the first evaporative cooler are sequentially connected, and the first evaporative cooler is further connected with the compressor; the charging heat dissipation loop is provided with a second evaporative cooler and a second low-temperature radiator, the second evaporative cooler is sequentially connected with the driving motor assembly and the charging assembly, the charging assembly is further connected with the second evaporative cooler, the second low-temperature radiator is sequentially connected with the driving motor assembly and the charging assembly, and the charging assembly is further connected with the second low-temperature radiator.

Description

Thermal management system and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a thermal management system and a vehicle.

Background

In recent years, climate problems and environmental problems are becoming more and more of an interest, new energy vehicles are becoming more and more popular, and in order to facilitate the use of users and reduce the charging time, the super-charging technology has been widely used in new energy vehicles. In the process of charging the battery, the temperature of the battery assembly and the charging assembly rises fast, and the battery assembly and the charging assembly need to be cooled.

In the prior art, a battery assembly and a charging assembly are respectively located in a heat dissipation loop, and in the battery charging process, the battery assembly is cooled in one heat dissipation loop, and the charging assembly is cooled in the other heat dissipation loop. However, this kind of cooling method can only cool off battery pack, charging module when charging voltage is less, and to the great super charge process of charging voltage, battery pack, charging module calorific capacity is great, and the cooling circuit that provides among the prior art is not enough to battery pack, charging module's cooling, can make battery pack, charging module's temperature be difficult to drop, and battery pack, charging module work can influence battery pack, charging module's performance under higher temperature, still probably takes place the potential safety hazard even.

Disclosure of Invention

In view of this, the present utility model is directed to a thermal management system and a vehicle, so as to solve the problem that in the prior art, when the heat dissipation capacity of the battery assembly and the charging assembly is large, the cooling effect of the heat dissipation circuit on the battery assembly and the charging assembly is poor, the performance of the battery assembly and the charging assembly is affected, and even potential safety hazards may occur.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a thermal management system is applied to a vehicle, the vehicle comprises a battery assembly, a driving motor assembly and a charging assembly, the driving motor assembly is connected with the charging assembly, and the thermal management system comprises a battery heat dissipation loop and a charging heat dissipation loop;

the battery cooling circuit comprises a first low-temperature radiator, the battery assembly and the first low-temperature radiator are connected to form a first cooling circuit, the battery cooling circuit further comprises a first sub cooling circuit and a second sub cooling circuit, the first sub cooling circuit comprises a first evaporative cooler, the battery assembly is connected with the first evaporative cooler, the second sub cooling circuit comprises a compressor and a condenser, the compressor, the condenser and the first evaporative cooler are sequentially connected, and the first evaporative cooler is further connected with the compressor;

the charging and radiating loop is provided with a second evaporative cooler and a second low-temperature radiator, the second evaporative cooler is sequentially connected with the driving motor assembly and the charging assembly, the charging assembly is also connected with the second evaporative cooler, the second low-temperature radiator is sequentially connected with the driving motor assembly and the charging assembly, and the charging assembly is also connected with the second low-temperature radiator;

Wherein the second evaporative cooler is connected with the first evaporative cooler.

Optionally, the first heat dissipation loop further comprises a first liquid pump connected between the battery assembly and the first low-temperature radiator;

the first evaporative cooler is provided with a first liquid inlet and a first liquid outlet which are communicated with each other, a second liquid inlet and a second liquid outlet which are communicated with each other, the first liquid inlet is connected with the battery assembly, the first liquid outlet is connected with the first liquid pump, and the first liquid inlet, the first liquid outlet, the first liquid pump and the battery assembly are connected to form the first sub heat dissipation loop;

the second sub heat dissipation loop further comprises a first expansion valve, the condenser, the first expansion valve, the second liquid inlet, the second liquid outlet and the compressor are sequentially connected, and the compressor is further connected with the condenser.

Optionally, the charging heat dissipation loop includes a third sub heat dissipation loop and a fourth sub heat dissipation loop, the driving motor assembly, the charging assembly, and the second evaporative cooler are connected to form the third sub heat dissipation loop, the second evaporative cooler is connected between the condenser and the compressor, the condenser, and the second evaporative cooler are connected to form the fourth sub heat dissipation loop.

Optionally, the charging heat dissipation loop further includes a second liquid pump, the second liquid pump is connected between the charging assembly and the second low-temperature radiator, and the driving motor assembly, the charging assembly, the second liquid pump and the second low-temperature radiator are connected to form a third heat dissipation loop;

the second evaporative cooler is provided with a third liquid inlet and a third liquid outlet which are communicated with each other, a fourth liquid inlet and a fourth liquid outlet which are communicated with each other, the third liquid inlet is connected with the driving motor assembly, the third liquid outlet is connected with a second liquid pump, and the third liquid inlet, the third liquid outlet, the second liquid pump, the driving motor and the charging assembly are connected to form a third sub heat dissipation loop;

the fourth sub heat dissipation loop further comprises a second expansion valve, the condenser, the second expansion valve, the fourth liquid inlet, the fourth liquid outlet and the compressor are sequentially connected, and the compressor is further connected with the condenser.

Optionally, the charging assembly includes a charger assembly and a voltage converter assembly, the charger assembly is connected with the voltage converter assembly, and the driving motor assembly is connected with the charger assembly or the voltage converter assembly.

Optionally, the thermal management system further includes a passenger cabin temperature regulating loop, the passenger cabin temperature regulating loop includes a liquid cooling condenser, a warm air core, an evaporator, a third expansion valve, a heater and a third liquid pump, the liquid cooling condenser has a fifth liquid inlet and a fifth liquid outlet which are mutually communicated, a sixth liquid inlet and a sixth liquid outlet which are mutually communicated, the compressor is sequentially connected with the fifth liquid inlet, the fifth liquid outlet, the third expansion valve and the evaporator, the evaporator is further connected with the compressor, and the compressor, the liquid cooling condenser, the third expansion valve and the evaporator are connected to form a passenger cabin temperature reducing loop;

the heater, the sixth liquid inlet, the sixth liquid outlet, the third liquid pump, the warm air core connects gradually, just the warm air core still with the heater is connected, the heater liquid cooling condenser the third liquid pump with the warm air core connects formation passenger cabin heating return circuit.

Optionally, the passenger cabin heating loop is connected with the first sub-heat dissipation loop to form a battery heating loop, and the battery heating loop is used for heating the battery assembly.

Optionally, the thermal management system includes a four-way reversing valve, a three-way pipe, and a three-way valve, where the three-way valve has a first valve port, a second valve port, and a third valve port, the four-way reversing valve has a first port, a second port, a third port, and a fourth port, the three-way pipe has a first pipe orifice, a second pipe orifice, and a third pipe orifice, and the first pipe orifice, the second pipe orifice, and the third pipe orifice are mutually communicated;

the warm air core body is connected with the first pipe orifice, the second pipe orifice is connected with the first valve port, the second valve port is connected with the heater, the third pipe orifice is connected with the first interface, the second interface is connected with the battery assembly, the third interface is connected with the first evaporative cooler, and the fourth interface is connected with the third valve port;

the first interface is communicated with the second interface, the third interface is communicated with the fourth interface, and the first valve port is communicated with the second valve port or the second valve port is communicated with the third valve port.

Optionally, a first stop valve is arranged between the compressor and the condenser, and a second stop valve is arranged between the compressor and the liquid cooling condenser.

In the embodiment of the utility model, the battery cooling loop comprises a first low-temperature radiator, the battery component and the first low-temperature radiator can be connected to form the first cooling loop, and the battery component can be cooled through the first low-temperature radiator. The battery cooling circuit still includes first sub cooling circuit, second sub cooling circuit, first sub cooling circuit, second sub cooling circuit also can cool off battery pack, specifically, battery cooling circuit still includes first evaporative cooler, compressor and condenser, first evaporative cooler and battery pack are connected and can form first sub cooling circuit, the compressor, the condenser, first evaporative cooler connects gradually, and first evaporative cooler still is connected with the compressor, thereby the compressor, the condenser, first evaporative cooler connects and forms second sub cooling circuit, first sub cooling circuit can cool off battery pack through first evaporative cooler, second sub cooling circuit can cool off first evaporative cooler, make first sub cooling circuit better to battery pack's cooling effect. That is, the battery cooling circuit may cool the battery assembly through the first low-temperature radiator and the first evaporative cooler.

The second evaporative cooler and the second low-temperature radiator are arranged in the charging heat dissipation loop, the second evaporative cooler is sequentially connected with the driving motor assembly and the charging assembly, and the charging assembly is also connected with the second evaporative cooler, so that the second evaporative cooler, the driving motor assembly and the charging assembly can form a heat dissipation loop to cool the driving motor assembly and the charging assembly; in addition, the second low-temperature radiator is connected with the driving motor component and the charging component in sequence, and the charging component is also connected with the second low-temperature radiator, so that the second low-temperature radiator, the driving motor component and the charging component can form a heat dissipation loop to cool the driving motor component and the charging component. That is, the charging and heat dissipating circuit may cool the driving motor assembly and the charging assembly through the second low-temperature radiator and the second evaporative cooler.

Therefore, in the embodiment of the utility model, the first evaporative cooler and the first low-temperature radiator can cool the battery assembly, and the second evaporative cooler and the second low-temperature radiator can cool the driving motor assembly and the charging assembly. That is, the battery assembly can be cooled through the multiple loops, the driving motor assembly and the charging assembly can be cooled through the multiple loops, the heat dissipation effect on the battery assembly, the driving motor assembly and the charging assembly is good, and the problems that the battery assembly and the charging assembly are poor in performance and even potential safety hazards possibly occur due to insufficient cooling on the battery assembly and the charging assembly under the condition that the heat dissipation capacity of the battery assembly and the charging assembly is large can be avoided.

In view of the above, the present utility model is directed to a thermal management system and a vehicle, so as to solve the problems that in the prior art, under the condition that the heat dissipation capacity of a battery assembly and a charging assembly is large, the cooling effect of a heat dissipation loop on the battery assembly and the charging assembly is poor, the performance of the battery assembly and the charging assembly is affected, and even potential safety hazards may occur

Another object of the present utility model is to provide a vehicle, so as to solve the problem that in the prior art, when the heat dissipation capacity of the battery assembly and the charging assembly is large, the cooling effect of the heat dissipation circuit on the battery assembly and the charging assembly is poor, the performance of the battery assembly and the charging assembly is affected, and even potential safety hazards may occur.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a vehicle comprising a battery assembly, a drive motor assembly, a charging assembly, and any of the thermal management systems described above.

The vehicle has the same advantages as the above-mentioned thermal management system over the prior art, and will not be described in detail here.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of a thermal management system according to an embodiment of the present utility model;

FIG. 2 is a block diagram of a thermal management system according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of a second heat dissipation circuit according to an embodiment of the present utility model;

fig. 4 is a flow path diagram of a charging and heat dissipating circuit according to an embodiment of the present utility model;

FIG. 5 is a flow path diagram of a passenger compartment attemperation circuit provided by an embodiment of the present utility model;

fig. 6 is a schematic diagram of a battery heating circuit according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of connection between a passenger cabin heating circuit and the first sub-heat dissipation circuit according to an embodiment of the present utility model.

Reference numerals illustrate:

100: a thermal management system; 12: a second heat dissipation loop; 13: a battery assembly; 121: a first sub-heat dissipation loop; 122: a second sub-heat dissipation loop; 111: a first low temperature radiator; 112: a first liquid pump; 113: a first evaporative cooler; 114: a compressor; 115: a first expansion valve; 116: a condenser; 117: a fan; 21: a third heat dissipation loop; 23: a drive motor assembly; 24: a charging assembly; 241: a charger assembly; 242: a voltage converter assembly; 221: a third sub-heat dissipation loop; 211: a second low temperature radiator; 212: a second liquid pump; 213: a second evaporative cooler; 215: a second expansion valve; 30: a passenger compartment temperature regulating circuit; 312: a liquid-cooled condenser; 313: a warm air core; 314: an evaporator; 315: a third expansion valve; 316: a heater; 317: a third liquid pump; 318: a blower; 40: a battery heating circuit; 41: a four-way reversing valve; 42: a three-way pipe; 43: a three-way valve; 411: a first interface; 412: a second interface; 413: a third interface; 414: a fourth interface; 421: a first nozzle; 422: a second nozzle; 423: a third nozzle; 431: a first valve port; 432: a second valve port; 433: a third valve port; 51: a first stop valve; 52: and a second shut-off valve.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 7, the thermal management system 100 is applied to a vehicle including a battery assembly 13, a driving motor assembly 23, and a charging assembly 24, the driving motor assembly 23 and the charging assembly 24 being connected. The thermal management system 100 includes a battery cooling circuit and a charging cooling circuit; the battery cooling circuit comprises a first low-temperature radiator 111, the battery assembly 13 and the first low-temperature radiator 111 are connected to form a first cooling circuit, the battery cooling circuit further comprises a first sub cooling circuit 121 and a second sub cooling circuit 122, the first sub cooling circuit 121 comprises a first evaporative cooler 113, the battery assembly 13 is connected with the first evaporative cooler 113, the second sub cooling circuit 122 comprises a compressor 114 and a condenser 116, the compressor 114, the condenser 116 and the first evaporative cooler 113 are sequentially connected, and the first evaporative cooler 113 is further connected with the compressor 114; the charging heat dissipation loop is provided with a second evaporative cooler 213 and a second low-temperature radiator 211, the second evaporative cooler 213 is sequentially connected with the driving motor assembly 23 and the charging assembly 24, the charging assembly 24 is also connected with the second evaporative cooler 213, the second low-temperature radiator 211 is sequentially connected with the driving motor assembly 23 and the charging assembly 24, and the charging assembly 24 is also connected with the second low-temperature radiator 211; wherein the second evaporative cooler 213 is connected to the first evaporative cooler 113.

In the embodiment of the utility model, the battery cooling circuit includes the first low-temperature radiator 111, the battery assembly 13 and the first low-temperature radiator 111 may be connected to form a first cooling circuit, and the battery assembly 13 may be cooled by the first low-temperature radiator 111. The battery cooling loop further comprises a first sub cooling loop 121 and a second sub cooling loop 122, the first sub cooling loop 121 and the second sub cooling loop 122 can cool the battery assembly 13, specifically, the battery cooling loop further comprises a first evaporative cooler 113, a compressor 114 and a condenser 116, the first evaporative cooler 113 is connected with the battery assembly 13 to form the first sub cooling loop 121, the compressor 114, the condenser 116 and the first evaporative cooler 113 are sequentially connected, the first evaporative cooler 113 is further connected with the compressor 114, the condenser 116 and the first evaporative cooler 113 are connected to form the second sub cooling loop 122, the first sub cooling loop 121 can cool the battery assembly 13 through the first evaporative cooler 113, and the second sub cooling loop 122 can cool the first evaporative cooler 113 to enable the first sub cooling loop 121 to have a good cooling effect on the battery assembly 13. That is, the battery cooling circuit can cool the battery assembly 13 by the first low-temperature radiator 111 and the first evaporative cooler 113.

The second evaporative cooler 213 and the second low-temperature radiator 211 are arranged in the charging heat dissipation loop, the second evaporative cooler 213 is sequentially connected with the driving motor assembly 23 and the charging assembly 24, and the charging assembly 24 is also connected with the second evaporative cooler 213, so that the second evaporative cooler 213, the driving motor assembly 23 and the charging assembly 24 can form a heat dissipation loop to cool the driving motor assembly 23 and the charging assembly 24; in addition, the second low-temperature radiator 211 is connected with the driving motor assembly 23 and the charging assembly 24 in sequence, and the charging assembly 24 is also connected with the second low-temperature radiator 211, so that the second low-temperature radiator 211, the driving motor assembly 23 and the charging assembly 24 can also form a heat dissipation loop to cool the driving motor assembly 23 and the charging assembly 24. That is, the charging heat dissipation circuit may cool the driving motor assembly 23 and the charging assembly 24 through the second low temperature radiator 211 and the second evaporative cooler 213.

Therefore, in the embodiment of the present utility model, the first evaporative cooler 113 and the first low-temperature radiator 111 can both cool the battery assembly 13, and the second evaporative cooler 213 and the second low-temperature radiator 211 can both cool the driving motor assembly 23 and the charging assembly 24. That is, the present utility model can cool the battery assembly 13 through a plurality of loops, cool the driving motor assembly 23 and the charging assembly 24 through a plurality of loops, and has good heat dissipation effect on the battery assembly 13, the driving motor assembly 23 and the charging assembly 24, so that the problems of poor performance and even potential safety hazards of the battery assembly 13 and the charging assembly 24 caused by insufficient cooling of the battery assembly 13 and the charging assembly 24 under the condition that the heat dissipation capacity of the battery assembly 13 and the charging assembly 24 is large can be avoided.

In the related art, the charging assembly 24 is connected with the driving motor assembly 23, and the charging assembly 24 and the driving motor assembly 23 are both arranged in a charging and heat dissipation loop, so that the charging assembly 24 and the driving motor assembly 23 can be cooled through the charging and heat dissipation loop, the heat dissipation effect on the driving motor assembly 23 is also good, and the problems that the cooling of the driving motor assembly 23 is insufficient and potential safety hazards are easily generated when the heat dissipation capacity of the driving motor assembly 23 is large can be avoided. In addition, the charging assembly 24 and the driving motor assembly 23 are both arranged in the charging heat dissipation circuit, so that when the thermal management system 100 is arranged, the original components in the vehicle are slightly changed, and the thermal management system is convenient to arrange.

The cooling of the battery module 13 by the battery cooling circuit may be specifically described with reference to the following: the first cooling liquid flows through the battery assembly 13 and the first low-temperature radiator 111 in sequence, part of heat of the battery assembly 13 can be taken away under the condition that the first cooling liquid flows to the battery assembly 13, the first cooling liquid can be cooled at the first low-temperature radiator 111 under the condition that the first cooling liquid flows to the first low-temperature radiator 111, the temperature of the first cooling liquid is lower, and then the first cooling liquid with lower temperature can flow to the battery assembly 13 again to cool the battery assembly 13.

For cooling the battery assembly 13 by the first and second sub-heat dissipation circuits 121 and 122, reference may be made to the following description: the first sub-heat dissipation circuit 121 is connected to the battery assembly 13, and the first cooling liquid flows through the battery assembly 13 and the first evaporative cooler 113 in this order in the first sub-heat dissipation circuit 121. In the case that the first cooling liquid flows to the battery assembly 13, a part of heat of the battery assembly 13 may be taken away, and in the case that the first cooling liquid flows to the first evaporative cooler 113, the first evaporative cooler 113 may cool the first cooling liquid, so that the temperature of the first cooling liquid is lower, and thus the first cooling liquid with lower temperature may flow to the battery assembly 13 again to cool the battery assembly 13. The second sub-heat dissipation loop 122 is provided with a first refrigerant, the first refrigerant sequentially flows through the compressor 114, the condenser 116 and the first evaporative cooler 113, the heat dissipation temperature of the first refrigerant is reduced outwards under the condition that the first refrigerant flows to the condenser 116, the first refrigerant continues to flow in the second sub-heat dissipation loop 122, and under the condition that the first refrigerant flows to the first evaporative cooler 113, the first refrigerant with lower temperature can take away the heat of the first cooling liquid in the first evaporative cooler 113, so that the first cooling liquid in the first sub-heat dissipation loop 121 can cool the battery assembly 13.

That is, the first sub-cooling circuit 121 and the second sub-cooling circuit 122 are connected at the position of the first evaporative cooler 113, so that the first cooling liquid in the first sub-cooling circuit 121 flows to the first evaporative cooler 113, and the first cooling liquid in the second sub-cooling circuit 122 can also flow to the first evaporative cooler 113, and in the case that the first cooling liquid in the first sub-cooling circuit 121 flows through the first evaporative cooler 113, and the first cooling liquid in the second sub-cooling circuit 122 also flows through the first evaporative cooler 113, the first cooling liquid can cool the first cooling liquid at the first evaporative cooler 113, so that the temperature of the first cooling liquid in the first sub-cooling circuit 121 is reduced, and since the first sub-cooling circuit 121 is also connected with the battery assembly 13, when the first cooling liquid with a lower temperature continues to flow in the first sub-cooling circuit 121, the first cooling liquid can flow through the battery assembly 13, and at this time, the first cooling liquid can take away part of heat of the battery assembly 13 and also cool the battery assembly 13. Therefore, the first sub-cooling circuit 121 and the second sub-cooling circuit 122 cooperate with each other to cool the battery assembly 13, and for convenience of description, the first sub-cooling circuit 121 and the second sub-cooling circuit 122 are referred to as the second cooling circuit 12, and both the first cooling circuit and the second cooling circuit 12 are in communication with the battery assembly 13, so as to cool the battery assembly 13.

It should be further noted that, the battery assembly 13 may include a battery body and a battery temperature adjusting plate, the battery body may be connected with the battery temperature adjusting plate, heat generated in the process of charging and discharging the battery body may be transferred to the battery temperature adjusting plate, a liquid channel may be disposed in the battery temperature adjusting plate, and the first heat dissipation loop and the first sub heat dissipation loop 121 may be both connected with the liquid channel, so that the first cooling liquid may be in the liquid channel, and under the condition that the first cooling liquid flows in the liquid channel, the first cooling liquid may take away heat of the battery temperature adjusting plate, and further may realize cooling of the battery body. Or, the battery assembly 13 may further include a battery body and a battery temperature adjusting box, the battery body may be disposed inside the battery temperature adjusting box, the battery temperature adjusting box may have a liquid inlet and a liquid outlet, and the first heat dissipation loop and the first sub heat dissipation loop 121 may be connected to the liquid inlet and the liquid outlet, so that the first cooling liquid may enter the battery temperature adjusting box through the liquid inlet when flowing, and flow out from the battery temperature adjusting box through the liquid outlet, in this process, the first cooling liquid may take away heat of the battery body, and further may implement cooling of the battery body. Of course, the battery assembly 13 may have other structures, as long as it can be communicated with the first heat dissipation circuit and the first sub heat dissipation circuit 121, so long as the battery assembly 13 is cooled, and the specific form of the battery assembly 13 is not specifically limited herein.

Here, the battery module 13 includes a battery body and a battery temperature adjusting plate, and two liquid channels may be provided on the battery temperature adjusting plate, where one liquid channel is in communication with the first heat dissipation circuit, and the other liquid channel is in communication with the first sub heat dissipation circuit 121, so that the battery module 13 may be cooled by the first heat dissipation circuit and the first sub heat dissipation circuit 121, respectively; alternatively, the liquid channels on the battery temperature-adjusting plate may be one, and at this time, the first sub-heat dissipation loop 121 and the second sub-heat dissipation loop 122 may be both communicated with the one liquid channel, and the first cooling liquid in the first sub-heat dissipation loop 121 and the first cooling liquid in the second sub-heat dissipation loop 122 may be converged in the liquid channels to cool the battery assembly 13 together.

Additionally, in some embodiments, as shown in fig. 2 and 3, the first heat dissipation circuit may further include a first liquid pump 112, the first liquid pump 112 being connected between the battery assembly 13 and the first low-temperature heat sink 111; the first evaporative cooler 113 has a first liquid inlet and a first liquid outlet which are mutually communicated, a second liquid inlet and a second liquid outlet which are mutually communicated, the first liquid inlet is connected with the battery assembly 13, the first liquid outlet is connected with the first liquid pump 112, and the first liquid inlet, the first liquid outlet, the first liquid pump 112 and the battery assembly 13 are connected to form a first sub heat dissipation loop 121; the second sub-heat dissipation loop 122 further includes a first expansion valve 115, a condenser 116, the first expansion valve 115, a second liquid inlet, a second liquid outlet, and a compressor 114, where the compressor 114 is further connected to the condenser 116.

The first heat dissipation circuit further includes a first liquid pump 112, where the first liquid pump 112 is connected between the battery assembly 13 and the first low-temperature radiator 111, that is, the first liquid pump 112, the battery assembly 13, and the first low-temperature radiator 111 are sequentially connected, and the first liquid pump 112 may circulate the first cooling liquid in the first heat dissipation circuit. Specifically, the first cooling liquid may enter the battery assembly 13 and flow out from the battery assembly 13, at this time, the first cooling liquid absorbs part of heat of the battery assembly 13, so that the temperature of the first cooling liquid increases, and under the condition that the first cooling liquid continues to flow to the first low-temperature radiator 111, the first low-temperature radiator 111 may radiate heat outwards, cool the first cooling liquid, so that the temperature of the first cooling liquid decreases, and under the action of the first liquid pump 112, the first cooling liquid may enter the battery assembly 13 again to cool the battery assembly 13, so that the first cooling liquid circulates in the first heat radiation loop.

The first evaporative cooler 113 has a first liquid inlet and a first liquid outlet which are communicated with each other, and a second liquid inlet and a second liquid outlet which are communicated with each other, so that the liquid flowing into the first evaporative cooler 113 through the first liquid inlet can flow out through the first liquid outlet, and the liquid flowing into the first evaporative cooler 113 through the second liquid inlet can flow out through the second liquid outlet. The first liquid inlet is connected to the battery assembly 13, and the first liquid outlet is connected to the first liquid pump 111, so that the first liquid pump 111, the battery assembly 13, the first liquid inlet and the first liquid outlet can be connected to form a first sub-heat dissipation loop 121. The second sub-heat dissipation loop 122 includes a first expansion valve 115, a first end of the condenser 116 is connected to the first expansion valve 115, the first expansion valve 115 is connected to a second liquid inlet, and the second liquid outlet is connected to the compressor 114, so that the compressor 114 can compress a first refrigerant first, the compressed first refrigerant flows to the condenser 116, at this time, the temperature of the first refrigerant decreases, the first refrigerant flowing out of the condenser 116 can flow to the first expansion valve 115 first to expand, then enters the first evaporative cooler 113 through the second liquid inlet, and flows out of the first evaporative cooler 113 through the second liquid outlet, enters the compressor 114, and is compressed again through the compressor 114, so that the first refrigerant can circulate in the second sub-heat dissipation loop 122.

Specifically, in the first sub-heat dissipation loop 121, the first cooling liquid may enter the battery assembly 13 and flow out from the battery assembly 13, and at this time, the first cooling liquid absorbs a part of heat of the battery assembly 13, so that the temperature of the first cooling liquid increases, the first cooling liquid continues to flow to the first evaporative cooler 113, and heat exchange is performed between the first cooling liquid and the first cooling medium in the first evaporative cooler 113; in the second sub-heat dissipation loop 122, the compressor 114 compresses the refrigerant into high-temperature and high-pressure gas, the high-temperature and high-pressure gas flows to the condenser 116, at this time, the condenser 116 exchanges heat with the external environment to cool the first refrigerant, and the cooled first refrigerant is expanded through the first expansion valve 115 and then can enter the first evaporative cooler 113 to exchange heat with the first cooling liquid. In the first evaporative cooler 113, the temperature of the first refrigerant is low, the temperature of the first coolant is high, the first refrigerant can absorb the temperature of the first coolant, the first coolant is cooled, and the cooled first coolant can flow into the battery assembly 13 to cool the battery assembly 13.

Therefore, in the embodiment of the present utility model, the first low-temperature radiator 111 is disposed in the first heat dissipation loop, and the first evaporative cooler 113 is disposed in the second heat dissipation loop 12, so that the first cooling liquid in the first heat dissipation loop and the first cooling liquid in the first sub-heat dissipation loop 121 can be cooled by the first low-temperature radiator 111 and the first evaporative cooler 113 respectively, and the cooling effect of the first cooling liquid is better, so that the cooling effect of the first cooling liquid on the battery assembly 13 is better, and the problem that the battery assembly 13 is poor in performance and even has potential safety hazards due to difficulty in cooling caused by temperature rise of the battery assembly 13 in the charging or discharging process of the battery assembly 13 can be avoided.

In addition, in some embodiments, as shown in fig. 1, 2 and 4, the charging heat dissipation circuit includes a third sub heat dissipation circuit 221 and a fourth sub heat dissipation circuit, the driving motor assembly 23, the charging assembly 24 and the second evaporative cooler 213 are connected to form the third sub heat dissipation circuit 221, the second evaporative cooler 213 is connected between the condenser 116 and the compressor, the condenser 116 and the second evaporative cooler 213 are connected to form the fourth sub heat dissipation circuit.

The charging heat dissipation loop comprises a third sub heat dissipation loop 221 and a fourth sub heat dissipation loop, the driving motor assembly 23, the charging assembly 24 and the second evaporative cooler 213 are connected to form the third sub heat dissipation loop 221, and the second evaporative cooler 213 can cool the driving motor assembly 23 and the charging assembly 24; the second evaporative cooler 213 is connected between the condenser 116 and the compressor, the condenser 116 and the second evaporative cooler 213 are connected to form a fourth sub-heat dissipation loop, the third sub-heat dissipation loop 221 can cool the driving motor assembly 23 and the charging assembly 24 through the second evaporative cooler 213, and the fourth sub-heat dissipation loop can cool the second evaporative cooler 213, so that the cooling effect of the first sub-heat dissipation loop 121 on the driving motor assembly 23 and the charging assembly 24 is good. That is, the charge heat dissipation circuit can cool the battery assembly 13 through the second low-temperature radiator 211 and the second evaporative cooler 213.

In addition, in some embodiments, as shown in fig. 2 and 4, the charging heat dissipation circuit further includes a second liquid pump 212, the second liquid pump 212 is connected between the charging assembly 24 and the second low-temperature radiator 211, and the driving motor assembly 23, the charging assembly 24, the second liquid pump 212 and the second low-temperature radiator 211 are connected to form a third heat dissipation circuit 21; the second evaporative cooler 213 has a third liquid inlet and a third liquid outlet which are mutually communicated, a fourth liquid inlet and a fourth liquid outlet which are mutually communicated, the third liquid inlet is connected with the driving motor assembly 23, the third liquid outlet is connected with the second liquid pump 212, and the third liquid inlet, the third liquid outlet, the second liquid pump 212, the driving motor and the charging assembly 24 are connected to form a third sub-heat dissipation loop 221; the fourth sub-heat dissipation loop further comprises a second expansion valve 215, the condenser 116, the second expansion valve 215, a fourth liquid inlet, a fourth liquid outlet and a compressor are sequentially connected, and the compressor is further connected with the condenser 116. The second cooling liquid flows through the third heat dissipation circuit 21 and the third sub heat dissipation circuit 221, and the second cooling medium flows through the fourth sub heat dissipation circuit.

The charging heat dissipation circuit further includes a second liquid pump 212, the second liquid pump 212 is connected between the charging assembly 24 and the second low-temperature radiator 211, the driving motor assembly 23, the charging assembly 24, the second liquid pump 212, and the second low-temperature radiator 211 are connected to form a third heat dissipation circuit 21, that is, the second liquid pump 212, the charging assembly 24, the driving motor assembly 23, and the second low-temperature radiator 211 are sequentially connected, and the second low-temperature radiator 211 is connected to the second liquid pump 212 to form the third heat dissipation circuit 21. The second liquid pump 212 may circulate the second cooling liquid in the third heat dissipation circuit 21. Specifically, the second cooling liquid may flow to the charging assembly 24 and the driving motor assembly 23 in sequence, at this time, the second cooling liquid absorbs heat of a part of the charging assembly 24 and the driving motor assembly 23, so that the temperature of the second cooling liquid is increased, under the condition that the second cooling liquid continues to flow to the second low-temperature radiator 211, the second low-temperature radiator 211 can radiate heat outwards, cool the second cooling liquid, so that the temperature of the second cooling liquid is reduced, and under the action of the second liquid pump 212, the second cooling liquid may enter the charging assembly 24 and the driving motor assembly 23 again to cool the same, so that the second cooling liquid circulates in the third heat radiation loop 21.

The second evaporative cooler 213 has a third liquid inlet and a third liquid outlet that are in communication with each other, and a fourth liquid inlet and a fourth liquid outlet that are in communication with each other, so that liquid flowing into the second evaporative cooler 213 through the third liquid inlet can flow out through the third liquid outlet, and liquid flowing into the second evaporative cooler 213 through the fourth liquid inlet can flow out through the fourth liquid outlet. The third liquid inlet is connected to the driving motor assembly 23, and the third liquid outlet is connected to the second liquid pump, so that the third liquid inlet, the third liquid outlet, the driving motor assembly 23, the charging assembly 24 and the second liquid pump can be connected to form a third sub-heat dissipation loop 221. The fourth sub-heat dissipation loop further includes a second expansion valve 215, the first end of the condenser is connected with the second expansion valve 215, the second expansion valve 215 is connected with the fourth liquid inlet, and the fourth liquid outlet is connected with the compressor 114, so that the compressor 114 can compress the second refrigerant first, the compressed second refrigerant flows to the condenser 116, at this time, the temperature of the second refrigerant decreases, the second refrigerant flowing out of the condenser can flow to the second expansion valve 215 first to expand, then enters the second evaporative cooler 213 through the fourth liquid inlet, and flows out of the second evaporative cooler 213 through the fourth liquid outlet, enters the compressor 114, and is compressed again through the compressor 114, so that the second refrigerant can circulate in the fourth sub-heat dissipation loop.

Specifically, in the third sub-heat dissipation loop 221, the second cooling liquid may enter the driving motor assembly 23 and the charging assembly 24 and flow out, and at this time, the second cooling liquid absorbs part of the heat of the driving motor assembly 23 and the charging assembly 24, so that the temperature of the second cooling liquid rises, the second cooling liquid continues to flow to the second evaporative cooler 213, and exchanges heat with the second refrigerant in the second evaporative cooler 213; in the fourth sub-heat dissipation loop, the compressor 114 compresses the second refrigerant into high-temperature and high-pressure gas, the high-temperature and high-pressure gas flows to the condenser 116, at this time, the condenser 116 exchanges heat with the external environment, the second refrigerant is cooled, and the cooled second refrigerant is expanded through the second expansion valve 215, and then can enter the second evaporative cooler to exchange heat with the second cooling liquid. In the second evaporative cooler 213, the second refrigerant has a low temperature and a high temperature of the second cooling liquid, and the second refrigerant can absorb the temperature of the second cooling liquid to cool the second cooling liquid, and the cooled second cooling liquid can flow into the driving motor assembly 23 and the charging assembly 24 to cool the driving motor assembly 23 and the charging assembly 24. For convenience of description, the third sub-heat dissipation circuit 221 and the fourth sub-heat dissipation circuit are referred to as a fourth heat dissipation circuit, and the third heat dissipation circuit 21 and the fourth heat dissipation circuit are both in communication with the driving motor assembly 23 and the charging assembly 24, so that the driving motor assembly 23 and the charging assembly 24 can be cooled. Specifically, for a specific process of cooling the driving motor assembly 23 and the charging assembly 24 by matching the third heat dissipation loop 21 and the fourth heat dissipation loop, please refer to the description of the first heat dissipation loop and the second heat dissipation loop 12, and the embodiments of the present utility model are not described herein again.

Therefore, in the embodiment of the present utility model, the second low-temperature radiator 211 is disposed in the third heat dissipation loop 21, and the second evaporative cooler 213 is disposed in the fourth heat dissipation loop, so that the second cooling liquid in the third heat dissipation loop 21 and the second cooling liquid in the third sub heat dissipation loop 221 can be cooled by the second low-temperature radiator 211 and the second evaporative cooler 213, respectively, and the cooling effect of the second cooling liquid is better, so that the cooling effect of the second cooling liquid on the battery assembly 13 is better, and the problems that the temperature rise is difficult to cool in the working process of the driving motor assembly 23 and the charging assembly 24, and the occurrence of potential safety hazards is avoided.

The compressor 114 is connected to the second sub-heat dissipation circuit 122 and the fourth sub-heat dissipation circuit, and the first refrigerant and the second refrigerant are the same substance, however, the second sub-heat dissipation circuit 122 and the fourth sub-heat dissipation circuit may not share a compressor, but may be connected to different compression machines, and at this time, the first refrigerant and the second refrigerant are different substances.

In the case that the condenser 116 is an air-cooled condenser, a fan 117 may be correspondingly disposed at a position where the condenser 116 is disposed, so that the condenser 116 may work normally, and of course, the condenser 116 may be another type of condenser, such as a liquid-cooled condenser.

Additionally, in some embodiments, as shown in fig. 2, the charging assembly 24 includes a chargeable battery assembly 241 and a voltage converter assembly, the battery assembly 241 being connected to the voltage converter assembly, and the drive motor assembly 23 being connected to the battery assembly 241 or the voltage converter assembly.

The charging assembly 24 includes a chargeable assembly 241 and a voltage converter assembly that can regulate the charging voltage, for example, the normal charging voltage can be increased to 800V by the voltage converter assembly 242 to overcharge the battery assembly 13 to reduce the charging time. In the process of the over-flushing, the heating values of the charging assembly 24 and the battery assembly 13 are larger, so that the cooling requirements of the charging assembly 24 and the battery assembly 13 are larger, and the embodiment of the utility model cools the charging assembly 24 and the battery assembly 13 through a low-temperature radiator and an evaporative cooler respectively, has a better cooling effect on the charging assembly 24 and the battery assembly 13, and can meet the cooling requirements of the charging assembly 24 and the battery assembly 13 in the process of the over-flushing.

After the vehicle is electrified, the driving motor assembly 23 starts to work, and the driving motor assembly 23 can be cooled through the third heat dissipation loop 21 under the condition that the driving motor assembly 23 works; during the process of charging the vehicle, both the drive motor assembly 23 and the charging assembly 24 may be cooled by the third and fourth heat dissipation circuits 21, 24. In addition, when the vehicle is in a normal running condition, the heating value of the driving motor assembly 23 is normal, and the vehicle is in a low heat dissipation requirement state at this time, the driving motor assembly 23 can be cooled only through the third heat dissipation loop 21; under the violent driving condition that the vehicle is rapidly accelerated and decelerated, the driving motor assembly 23 can easily generate an overtemperature phenomenon, and at the moment, the driving motor assembly 23 and the charging assembly 24 can be cooled through the third heat dissipation loop 21 and the fourth heat dissipation loop, so that the cooling effect on the driving motor assembly 23 is good.

It should be noted that, the driving motor assembly 23 may include a driving motor and a motor temperature adjusting plate, the driving motor may be connected to the motor temperature adjusting plate, heat generated during the operation of the driving motor may be transferred to the motor temperature adjusting plate, and a liquid channel may be disposed inside the motor temperature adjusting plate. Alternatively, the driving motor assembly 23 may further include a driving motor and a motor temperature adjusting tank, the driving motor may be disposed inside the motor temperature adjusting tank, and the motor temperature adjusting tank may have a liquid inlet and a liquid outlet. Reference may be made specifically to the description of the battery assembly 13, and the embodiments of the present utility model will not be described herein.

Likewise, the charger assembly 241 may include a charger body and a charger temperature regulation plate, or a charger body and a charger temperature regulation box, and the voltage converter assembly may include a voltage converter body and a voltage converter temperature regulation plate, or a voltage converter body and a voltage converter temperature regulation box, as described above.

Additionally, in some embodiments, as shown in fig. 5, the thermal management system 100 further includes a passenger compartment tempering circuit 30, the passenger compartment tempering circuit 30 includes a liquid-cooled condenser 312, a warm air core 313, an evaporator 314, a third expansion valve 315, a heater 316, and a third liquid pump 317, the liquid-cooled condenser 312 has a fifth liquid inlet and a fifth liquid outlet in communication, a sixth liquid inlet and a sixth liquid outlet in communication, the compressor 114 is sequentially connected to the fifth liquid inlet, the fifth liquid outlet, the third expansion valve 315, the evaporator 314 is further connected to the compressor 114, and the compressor 114, the liquid-cooled condenser 312, the third expansion valve 315, and the evaporator 314 are connected to form a passenger compartment tempering circuit; the heater 316, the sixth liquid inlet, the sixth liquid outlet, the third liquid pump 317 and the warm air core 313 are sequentially connected, and the warm air core 313 is also connected with the heater 316, and the heater 316, the liquid cooling condenser 312, the third liquid pump 317 and the warm air core 313 are connected to form a passenger cabin heating loop.

The thermal management system 100 further includes a passenger compartment temperature adjustment circuit 30, the passenger compartment temperature adjustment circuit 30 includes a third compressor 311, a liquid cooling condenser 312, a warm air core 313, an evaporator 314, a heater 316, and a third liquid pump 317, the liquid cooling condenser 312 has a fifth liquid inlet and a fifth liquid outlet, the compressor 114 is sequentially connected with the fifth liquid inlet, the fifth liquid outlet, a third expansion valve 315, and the evaporator 314 is further connected with the compressor 114, so that the compressor 114, the liquid cooling condenser 312, the third expansion valve 315, and the evaporator 314 are connected to form a passenger compartment temperature adjustment circuit, a first cooling medium can be circulated in the passenger compartment temperature adjustment circuit, the compressor 114 can compress the first cooling medium, the first cooling medium is compressed into a high-temperature high-pressure gas form, the first cooling medium in the gas form flows to the liquid cooling condenser 312, the liquid cooling medium cools the first cooling medium, the cooled first cooling medium can expand through the third expansion valve 315 and then flows to the evaporator 314, the first cooling medium can be evaporated at the evaporator 314, and then can be circulated again into the compressor 114 to absorb heat. The evaporator 314 may be in communication with the interior of the vehicle, and the first cooling medium absorbs heat from the interior of the vehicle at the evaporator 314 to remove heat from the interior of the vehicle to cool the passenger compartment.

The heater 316, the sixth liquid inlet, the sixth liquid outlet, the third liquid pump 317, the warm air core 313 are connected in sequence, and the warm air core 313 is further connected with the heater 316, so that the heater 316, the liquid cooling condenser 312, the third liquid pump 317 and the warm air core 313 can be connected to form a passenger cabin heating loop, a second cooling medium can flow in the passenger cabin heating loop, the second cooling medium can heat the second cooling medium under the condition that the second cooling medium flows through the heater 316, the heated second cooling medium flows to the warm air core 313 through the liquid cooling cooler, and the passenger cabin can be heated through the warm air core 313. When the passenger compartment heating circuit is in operation, the liquid-cooled condenser 312 is in a non-operating state for better heating effect.

The blower 318 may be disposed at a position opposite to the warm air core 313, and the heat of the cooling liquid in the warm air core 313 may be blown into the passenger compartment by the blower 318, so that the heating effect of the passenger compartment heating circuit may be better.

It should be further noted that, the compressor 114 is connected to the passenger cabin cooling circuit, and the compressor 114 is further connected to the second sub-cooling circuit 122 and the fourth sub-cooling circuit, where the plurality of circuits share one compressor 114, so that the number of components and the cost can be reduced, and thus the first cooling medium, the first refrigerant and the second refrigerant are the same material. Of course, another compressor 114 may be additionally provided for the passenger cabin cooling circuit, and the first cooling medium may be different from the first cooling medium and the second cooling medium.

In the case that the passenger cabin cooling circuit, the second sub-cooling circuit 122, and the fourth sub-cooling circuit share the compressor 114, in order to enable the plurality of circuits to operate normally, a three-way interface may be disposed at the compressor 114, one interface of the three-way interface is connected with the compressor 114, and the other two interfaces of the three-way interface are respectively connected with the condenser 116 and the liquid cooling/heating condenser.

Additionally, in some embodiments, a first shut-off valve 51 is disposed between the compressor 114 and the condenser 116, and a second shut-off valve 52 is disposed between the compressor 114 and the liquid-cooled condenser 312.

The first stop valve 51 and the second stop valve 52 can be arranged to enable cooling of the battery assembly 13 and cooling of the passenger cabin to be carried out independently, when the battery cooling loop and/or the charging cooling loop work, the first stop valve 51 can be controlled to be opened, and the compressor 114 can provide compressed first refrigerant for the condenser 116; when the passenger compartment cooling circuit is in operation, the second shut-off valve 52 may be controlled to open, at which time the compressor 114 may provide compressed first cooling medium to the liquid cooled condenser 312 so that several circuits may operate normally. When the battery cooling circuit and/or the charging cooling circuit are/is operated and the passenger cabin cooling circuit is operated, the first stop valve 51 and the second stop valve 52 can be controlled to be opened.

Additionally, in some embodiments, as shown in fig. 6, the passenger compartment heating circuit and the first sub-cooling circuit 121 may be connected to form a battery heating circuit 40, the battery heating circuit 40 being used to warm up the battery assembly 13.

The passenger cabin heating loop is connected with the first sub-heat dissipation loop 121 to form a battery heating loop 40, and the battery assembly 13 can be heated up through the battery heating loop 40 under the condition that the battery assembly 13 needs to be heated, so that the battery assembly 13 can work normally. In the embodiment of the utility model, the passenger cabin heating loop is connected with the first sub heat dissipation loop 121 to form the battery heating loop 40, and the battery assembly 13 can be heated through components in the passenger cabin heating loop, so that the utilization rate of the components is high, and the resource waste is avoided.

In addition, in some embodiments, as shown in fig. 6 and 7, the thermal management system 100 may include a four-way reversing valve 41, a three-way pipe 42, and a three-way valve 43, the three-way valve 43 having a first port 431, a second port 432, and a third port 433, the four-way reversing valve 41 having a first port 411, a second port 412, a third port 413, and a fourth port 414, the three-way pipe 42 having a first nozzle 421, a second nozzle 422, and a third nozzle 423, the first nozzle 421, the second nozzle 422, and the third nozzle 423 being in communication with one another; the warm air core 313 is connected to the first nozzle 421, the second nozzle 422 is connected to the first valve port 431, the second valve port 432 is connected to the heater 316, the third nozzle 423 is connected to the first port 411, the second port 412 is connected to the battery assembly 13, the third port 413 is connected to the first evaporative cooler 113, and the fourth port 414 is connected to the third valve port 433; wherein the first port 411 communicates with the second port 412, the third port 413 communicates with the fourth port 414, the first valve port 431 communicates with the second valve port 432 or the second valve port 432 communicates with the third valve port 433.

The thermal management system 100 includes a four-way reversing valve 41, a three-way pipe 42 and a three-way valve 43, the three-way pipe 42 has a first pipe orifice 421, a second pipe orifice 422 and a third pipe orifice 423, the three-way valve 43 has a first valve port 431, a second valve port 432 and a third valve port 433, the four-way reversing valve 41 has a first interface 411, a second interface 412, a third interface 413 and a fourth interface 414, and the passenger compartment heating circuit and the first sub heat dissipation circuit 121 can be connected through the four-way reversing valve 41, the three-way pipe 42 and the three-way valve 43. The multiple valve ports of the three-way valve 43 may be variously conducted under different conditions so that the battery heating circuit 40 and the passenger compartment heating circuit may be switched to allow the thermal management system 100 to heat the passenger compartment or the battery assembly 13.

Specifically, the warm air core 313 may be connected to the first nozzle 421, the second nozzle 422 may be connected to the first valve port 431, the second valve port 432 may be connected to the heater 316, the third nozzle 423 may be connected to the first port 411, the second port 412 may be connected to the battery assembly 13, the third port 413 may be connected to the first evaporative cooler 113, and the fourth port 414 may be connected to the third valve port 433, so that the passenger compartment heating circuit may be connected to the first sub-cooling circuit 121. In the passenger compartment heating circuit, the first valve port 431 and the second valve port 432 communicate with each other, and in the battery heating circuit 40, the second valve port 432 communicates with the third valve port 433.

In the case where the passenger compartment heating loop and the first sub-cooling loop 121 are connected to form the battery heating loop 40, the second cooling medium and the first cooling liquid may be the same substance, so as to avoid the problem of the performance degradation of the thermal management system 100 due to the mutual doping of different substances.

In addition, the first cooling liquid, the first refrigerant, and the like flow through the thermal management system 100 provided in the embodiment of the present utility model, and in order to enable the first cooling liquid, the first refrigerant, and the like to normally flow, all the components are connected through pipelines. In order to reduce the arrangement of the pipes, so that the thermal management system 100 is simple to connect, the pipes between some components can be connected together under the premise that the normal operation of each loop is not affected, for example, the second liquid outlet of the first evaporative cooler 113 and the second evaporative cooler 213 can be connected in a manner that a plurality of three-way interfaces, such as a first three-way interface and a second three-way interface, can be provided, the second liquid outlet of the first evaporative cooler 113 and the fourth liquid outlet of the second evaporative cooler 213 can be connected to two interfaces of the first three-way interface, and then connected with the compressor 114 through the other interface of the first three-way interface; the second liquid inlet of the first evaporative cooler 113 and the fourth liquid outlet of the first evaporative cooler 113 may also be connected to two interfaces of the second three-way interface, and the other interface of the second three-way interface is connected to the condenser 116, as can be seen in fig. 1.

In the embodiment of the utility model, the battery cooling circuit includes the first low-temperature radiator 111, the battery assembly 13 and the first low-temperature radiator 111 may be connected to form a first cooling circuit, and the battery assembly 13 may be cooled by the first low-temperature radiator 111. The battery cooling loop further comprises a first sub cooling loop 121 and a second sub cooling loop 122, the first sub cooling loop 121 and the second sub cooling loop 122 can cool the battery assembly 13, specifically, the battery cooling loop further comprises a first evaporative cooler 113, a compressor 114 and a condenser 116, the first evaporative cooler 113 is connected with the battery assembly 13 to form the first sub cooling loop 121, the compressor 114, the condenser 116 and the first evaporative cooler 113 are sequentially connected, the first evaporative cooler 113 is further connected with the compressor 114, the condenser 116 and the first evaporative cooler 113 are connected to form the second sub cooling loop 122, the first sub cooling loop 121 can cool the battery assembly 13 through the first evaporative cooler 113, and the second sub cooling loop 122 can cool the first evaporative cooler 113 to enable the first sub cooling loop 121 to have a good cooling effect on the battery assembly 13. That is, the battery cooling circuit can cool the battery assembly 13 by the first low-temperature radiator 111 and the first evaporative cooler 113.

The second evaporative cooler 213 and the second low-temperature radiator 211 are arranged in the charging heat dissipation loop, the second evaporative cooler 213 is sequentially connected with the driving motor assembly 23 and the charging assembly 24, and the charging assembly 24 is also connected with the second evaporative cooler 213, so that the second evaporative cooler 213, the driving motor assembly 23 and the charging assembly 24 can form a heat dissipation loop to cool the driving motor assembly 23 and the charging assembly 24; in addition, the second low-temperature radiator 211 is connected with the driving motor assembly 23 and the charging assembly 24 in sequence, and the charging assembly 24 is also connected with the second low-temperature radiator 211, so that the second low-temperature radiator 211, the driving motor assembly 23 and the charging assembly 24 can also form a heat dissipation loop to cool the driving motor assembly 23 and the charging assembly 24. That is, the charging heat dissipation circuit may cool the driving motor assembly 23 and the charging assembly 24 through the second low temperature radiator 211 and the second evaporative cooler 213.

Therefore, in the embodiment of the present utility model, the first evaporative cooler 113 and the first low-temperature radiator 111 can both cool the battery assembly 13, and the second evaporative cooler 213 and the second low-temperature radiator 211 can both cool the driving motor assembly 23 and the charging assembly 24. That is, the battery assembly 13 can be cooled through the multiple loops, the driving motor assembly 23 and the charging assembly 24 can be cooled through the multiple loops, the heat dissipation effect on the battery assembly 13, the driving motor assembly 23 and the charging assembly 24 is good, and the problems that the battery assembly 13, the driving motor assembly 23 and the charging assembly 24 have poor performance and even potential safety hazards possibly occur due to insufficient cooling caused by high temperature when the battery assembly 13, the driving motor assembly 23 and the charging assembly 24 work can be avoided.

In addition, embodiments of the present utility model provide a vehicle that includes the battery assembly 13, the drive motor assembly 23, the charging assembly 24, and the thermal management system 100 of any of the above embodiments.

The vehicle carrying the thermal management system 100 can cool the battery assembly 13 through a plurality of loops, cool the driving motor assembly 23 and the charging assembly 24 through a plurality of loops, has good heat dissipation effect on the battery assembly 13, the driving motor assembly 23 and the charging assembly 24, can avoid the defect that the battery assembly 13, the driving motor assembly 23 and the charging assembly 24 have poor performance and even potential safety hazards due to the fact that the temperature is high and the cooling is insufficient when the battery assembly 13, the driving motor assembly 23 and the charging assembly 24 work.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A thermal management system, characterized in that it is applied in a vehicle, the vehicle includes a battery assembly, a driving motor assembly and a charging assembly, the driving motor assembly and the charging assembly are connected, the thermal management system includes a battery heat dissipation loop and a charging heat dissipation loop;

The battery cooling circuit comprises a first low-temperature radiator, the battery assembly and the first low-temperature radiator are connected to form a first cooling circuit, the battery cooling circuit further comprises a first sub cooling circuit and a second sub cooling circuit, the first sub cooling circuit comprises a first evaporative cooler, the battery assembly is connected with the first evaporative cooler, the second sub cooling circuit comprises a compressor and a condenser, the compressor, the condenser and the first evaporative cooler are sequentially connected, and the first evaporative cooler is further connected with the compressor;

the charging and radiating loop is provided with a second evaporative cooler and a second low-temperature radiator, the second evaporative cooler is sequentially connected with the driving motor assembly and the charging assembly, the charging assembly is also connected with the second evaporative cooler, the second low-temperature radiator is sequentially connected with the driving motor assembly and the charging assembly, and the charging assembly is also connected with the second low-temperature radiator;

wherein the second evaporative cooler is connected with the first evaporative cooler.

2. The thermal management system of claim 1, wherein the first heat dissipation loop further comprises a first liquid pump connected between the battery assembly and the first low temperature heat sink;

The first evaporative cooler is provided with a first liquid inlet and a first liquid outlet which are communicated with each other, a second liquid inlet and a second liquid outlet which are communicated with each other, the first liquid inlet is connected with the battery assembly, the first liquid outlet is connected with the first liquid pump, and the first liquid inlet, the first liquid outlet, the first liquid pump and the battery assembly are connected to form the first sub heat dissipation loop;

the second sub heat dissipation loop further comprises a first expansion valve, the condenser, the first expansion valve, the second liquid inlet, the second liquid outlet and the compressor are sequentially connected, and the compressor is further connected with the condenser.

3. The thermal management system of claim 1, wherein the charge-and-heat-rejection circuit comprises a third sub-heat-rejection circuit and a fourth sub-heat-rejection circuit, the drive motor assembly, the charge assembly, and the second evaporative cooler being connected between the condenser and the compressor, and the second evaporative cooler being connected to form the third sub-heat-rejection circuit.

4. The thermal management system of claim 3, wherein the charge-and-heat-dissipation loop further comprises a second liquid pump connected between the charge assembly and the second low-temperature heat sink, the drive motor assembly, the charge assembly, the second liquid pump, and the second low-temperature heat sink being connected to form a third heat-dissipation loop;

the second evaporative cooler is provided with a third liquid inlet and a third liquid outlet which are communicated with each other, a fourth liquid inlet and a fourth liquid outlet which are communicated with each other, the third liquid inlet is connected with the driving motor assembly, the third liquid outlet is connected with a second liquid pump, and the third liquid inlet, the third liquid outlet, the second liquid pump, the driving motor and the charging assembly are connected to form a third sub heat dissipation loop;

the fourth sub heat dissipation loop further comprises a second expansion valve, the condenser, the second expansion valve, the fourth liquid inlet, the fourth liquid outlet and the compressor are sequentially connected, and the compressor is further connected with the condenser.

5. The thermal management system of claim 1, wherein the charging assembly comprises a charger assembly and a voltage converter assembly, the charger assembly being connected to the voltage converter assembly, the drive motor assembly being connected to the charger assembly or the voltage converter assembly.

6. The thermal management system of claim 1, further comprising a passenger compartment attemperation circuit comprising a liquid cooled condenser, a warm air core, an evaporator, a third expansion valve, a heater, and a third liquid pump, the liquid cooled condenser having a fifth liquid inlet and a fifth liquid outlet in communication, a sixth liquid inlet and a sixth liquid outlet in communication, the compressor being sequentially connected to the fifth liquid inlet, the fifth liquid outlet, the third expansion valve, the evaporator, the compressor, the liquid cooled condenser, the third expansion valve, the evaporator, and the evaporator, the compressor, the liquid cooled condenser, the third expansion valve, and the evaporator being connected to form a passenger compartment attemperation circuit;

the heater, the sixth liquid inlet, the sixth liquid outlet, the third liquid pump, the warm air core connects gradually, just the warm air core still with the heater is connected, the heater liquid cooling condenser the third liquid pump with the warm air core connects formation passenger cabin heating return circuit.

7. The thermal management system of claim 6, wherein the passenger compartment heating circuit is connected with the first sub-heat dissipation circuit to form a battery heating circuit for warming the battery assembly.

8. The thermal management system of claim 7, wherein the thermal management system comprises a four-way reversing valve having a first port, a second port, and a third port, a three-way pipe having a first port, a second port, a third port, and a fourth port, and a three-way valve having a first orifice, a second orifice, and a third orifice, the first orifice, the second orifice, and the third orifice being in communication with one another;

the warm air core body is connected with the first pipe orifice, the second pipe orifice is connected with the first valve port, the second valve port is connected with the heater, the third pipe orifice is connected with the first interface, the second interface is connected with the battery assembly, the third interface is connected with the first evaporative cooler, and the fourth interface is connected with the third valve port;

the first interface is communicated with the second interface, the third interface is communicated with the fourth interface, and the first valve port is communicated with the second valve port or the second valve port is communicated with the third valve port.

9. The thermal management system of claim 6, wherein a first shut-off valve is disposed between the compressor and the condenser, and a second shut-off valve is disposed between the compressor and the liquid-cooled condenser.

10. A vehicle comprising a battery assembly, a drive motor assembly, a charging assembly, and the thermal management system of any one of claims 1-9.