CN220429812U - Thermal management system - Google Patents

Abstract

The application provides a thermal management system, which relates to the field of new energy vehicles. The present application provides a thermal management system comprising: the six-way valve and the plurality of loops, wherein the plurality of loops comprise a motor loop, a warm air loop, a heat dissipation loop and a refrigerant loop, the motor loop, the warm air loop and the heat dissipation loop are communicated through different communication modes by the six-way valve, so that the motor loop, the heat dissipation loop and the warm air loop form different loops, thereby realizing the functional requirements of a passenger cabin, a battery and a motor under different working conditions, the refrigerant loop exchanges heat with the motor loop and the warm air loop through a set refrigerator and an evaporator, thereby realizing the heating of the battery and the indirect heating or cooling of the passenger cabin.

Description

Thermal management system

Technical Field

The application relates to the field of new energy vehicles, in particular to a thermal management system.

Background

The direct cooling and direct heating technology of the battery is adopted in the new energy vehicle heat management scheme, so that the cost and weight of the whole vehicle can be reduced, the cooling and heating efficiency of the battery can be improved, and the purposes of reducing the energy consumption of the whole vehicle and shortening the charging time are achieved.

In the existing vehicle thermal management scheme, a non-traditional thermal management scheme is generally adopted for each new energy brand vehicle, however, in the non-traditional thermal management scheme, refrigerant loop valve members are more combined, the integrated module is inconvenient to manufacture, the universality is low, and the coverage function is not comprehensive.

Therefore, the prior art has drawbacks in terms of more valve components, low versatility and incomplete covering function for the vehicle thermal management scheme.

Disclosure of Invention

The application provides a thermal management system for solve among the prior art to the thermal management scheme of vehicle in valve member combination more, the commonality is low and cover the problem that the function is not comprehensive.

In a first aspect, the present application provides a thermal management system for a new energy vehicle, the new energy vehicle including a motor, a six-way valve, a battery, and a passenger compartment, the thermal management system comprising:

a motor loop for adjusting a motor temperature of the motor;

the warm air loop is used for adjusting the temperature of the passenger cabin;

the heat dissipation loop is used for adjusting the temperatures of the motor loop and the warm air loop;

the refrigerant loop is used for adjusting the battery temperature of the battery, assisting in adjusting the motor temperature and the passenger cabin temperature, and is used for carrying out heat exchange on the motor loop and the warm air loop;

The six-way valve comprises six outlets, one or more of the six outlets are communicated with the motor loop, the warm air loop and the heat dissipation loop outside the six-way valve, the six outlets are communicated with each other in any two inside the six-way valve, the six-way valve comprises a plurality of communication modes, and the outlets which are communicated with each other in two-by-two mode are different in different communication modes, so that the motor loop, the heat dissipation loop and the warm air loop form different loops.

In one possible design, a first adjacent two outlets of the six-way valve are in communication with the motor circuit, a second adjacent two outlets of the six-way valve are in communication with the heat dissipation circuit, and a third adjacent two outlets of the six-way valve are in communication with the warm air circuit.

In one possible design, the refrigerant circuit includes a high pressure passage provided with a plurality of electronic expansion valves and a low pressure passage provided with a refrigerator and an evaporator, the high pressure passage and the low pressure passage being communicated through the plurality of electronic expansion valves;

the high-pressure passage and the low-pressure passage are also respectively in communication with the battery circuit.

In one possible design, the battery circuit includes a battery cooling plate, one side of the battery cooling plate is connected with a plurality of stop valves and is respectively communicated with the high-pressure passage and the low-pressure passage through the plurality of stop valves, the other side of the battery cooling plate is connected with the electronic expansion valve and a one-way valve, wherein an outlet of the one-way valve is communicated with the high-pressure passage, the battery cooling plate is used for carrying out heat exchange with the battery, and the one-way valve is used for controlling the one-way flow of a high-pressure refrigerant.

In one possible design, the heat dissipation circuit comprises a heat sink around which a fan is arranged for conducting out high temperature air around the heat sink;

and two ends of the radiator are respectively connected with corresponding outlets in the second adjacent two outlets.

In one possible design, the warm air loop includes a warm air water pump and a heat exchanger, the heat exchanger and the evaporator are correspondingly arranged, and a blower is arranged around the evaporator and used for guiding out low-temperature air to the passenger cabin; one outlet of the third adjacent two outlets of the six-way valve is connected with the heat exchanger, and the other outlet is connected with the warm air water pump.

In one possible embodiment, in a first communication mode of the six-way valve, the motor circuit, the warm air circuit and the heat dissipation circuit are connected in series to form a circuit.

In one possible design, in the first communication mode of the six-way valve, the low-pressure passage in which the refrigerator is located is not in communication with the battery circuit, so that the low-pressure passage in which the evaporator is located is in communication with the battery circuit.

In one possible design, in the second communication mode of the six-way valve, the motor circuit is in communication with the heat dissipation circuit, and neither is in communication with the warm air circuit.

In one possible design, in the second communication mode of the six-way valve, the low-pressure passage in which the evaporator is located is not in communication with the battery circuit, so that the low-pressure passage in which the refrigerator is located is in communication with the battery circuit.

In one possible design, in the third communication mode of the six-way valve, the motor circuit, the warm air circuit and the heat dissipation circuit are independent and are not communicated with each other.

In one possible design, in a fourth communication mode of the six-way valve, the motor circuit is in communication with the warm air circuit, and neither is in communication with the heat dissipation circuit.

The utility model provides a pair of thermal management system makes motor return circuit, radiating circuit and warm braw return circuit constitute different return circuits through the different intercommunication modes of six way valve to realize passenger cabin, battery and motor functional requirement under different operating modes, the refrigerant return circuit carries out the heat exchange to motor return circuit and warm braw return circuit through refrigerator and the evaporimeter that sets up, thereby realize the indirect heating or the cooling to the heating of battery and passenger cabin, compare the thermal management technical scheme who adopts in prior art, the valve member combination quantity that the thermal management system that this application provided needs is fewer, the commonality is high and the cover function is more comprehensive, manufacturing cost and weight have been reduced under the prerequisite of guaranteeing function and performance.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a first communication mode of a six-way valve of a thermal management system according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a second communication mode of a six-way valve of a thermal management system according to an embodiment of the present disclosure;

FIG. 3 is a schematic illustration of a third communication mode of a six-way valve of a thermal management system according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of a fourth communication mode of a six-way valve of a thermal management system according to an embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application, as detailed in the accompanying claims, rather than all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms first, second, third, fourth and the like in the description and in the claims and in the above drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein.

HVAC (Heating, ventilation, and Air conditioning) systems in automotive thermal management systems need to regulate the temperature of the passenger compartment of a new energy vehicle, thereby providing a comfortable environment for the passenger compartment, and meanwhile, the battery and the motor of the new energy vehicle generate heat during operation, so that the battery or the motor can operate at an optimal temperature to enhance the endurance mileage of the electric automobile, and the temperature of the battery or the motor is usually regulated and controlled, so that the passenger compartment, the battery and the motor need to be thermally managed, thereby improving the energy utilization efficiency of the new energy vehicle.

The battery direct cooling and direct heating technology adopted in the existing vehicle thermal management scheme can reduce the whole vehicle cost and weight of the vehicle, and can improve the cooling and heating efficiency of the battery, so that the purposes of reducing the whole vehicle energy consumption and shortening the charging time are achieved, but vehicle manufacturers generally adopt non-traditional thermal management schemes for the respective developed new energy vehicles so as to adapt to the respective developed new energy vehicles, and refrigerant loop valve members adopted in the non-traditional thermal management schemes are more in combination, are inconvenient to be made into an integrated module, and have low universality and incomplete covering function.

The present application provides a thermal management system comprising: the six-way valve 100 and a plurality of circuits, wherein the plurality of circuits comprise a motor circuit 200, a warm air circuit 300, a heat dissipation circuit 400 and a refrigerant circuit 500, the six-way valve 100 communicates the motor circuit 200, the warm air circuit 300 and the heat dissipation circuit 400 through different communication modes, so that the motor circuit 200, the heat dissipation circuit 400 and the warm air circuit 300 form different circuits, thereby meeting the functional requirements of a passenger cabin, a battery and the motor 201 under different working conditions, the six-way valve 100 comprises a first outlet 1-a sixth outlet 6, which are respectively numbered 1-6, and two adjacent outlets outside the six-way valve 100, namely a third outlet 3 and a fourth outlet 4, are communicated with the motor circuit, two adjacent outlets outside the six-way valve 100, namely a first outlet 1 and a second outlet 2, are communicated with the heat dissipation circuit, two adjacent outlets outside the six-way valve, namely a fifth outlet 5 and a sixth outlet 6 are communicated with the warm air circuit, wherein the refrigerant circuit 500 comprises a compressor, a muffler, a high pressure passage 501 and a low pressure passage 502, wherein the high pressure passage 501 and the low pressure passage 502 exchange heat through a coaxial pipe 504, a second stop valve 5011, a condenser 5012, a liquid storage tank and a plurality of electronic expansion valves are arranged in the high pressure passage 501, the high pressure passage 501 and the low pressure passage 502 are respectively communicated with the battery circuit 503 through a first stop valve 5033 and a third stop valve 5034, a three-way proportional valve 505 is also arranged on the high pressure passage 501 to control the flowing direction of the high pressure refrigerant, the battery circuit 503 is provided with a battery cold plate 5031 and a one-way valve 5035, wherein the battery cold plate 5031 and the battery jointly form a battery pack, direct heating or cooling of the battery is realized through temperature adjustment of the battery cold plate 5031 in the battery circuit 503, one outlet of the three-way proportional valve 505 is communicated with one side of the first stop valve 5033 away from the battery cold plate 5031, and the outlet of the check valve 5035 is connected to the high-pressure passage 501 before the liquid storage tank to control the high-pressure refrigerant to flow unidirectionally, the first electronic expansion valve 5015 of the plurality of electronic expansion valves in the high-pressure passage 501 is correspondingly connected in series with the battery cooling plate 5031, the second electronic expansion valve 5014 is correspondingly connected in series with the refrigerator, i.e. the beller 5021, and the third electronic expansion valve 5013 is correspondingly connected in series with the evaporator 5022.

The motor loop 200 is provided with a motor 201, a motor controller, a DCDC (direct current/direct current converter)/OBC (on-board charger), a motor water pump and an expansion kettle, and a low-pressure low-temperature refrigerant passing through a low-pressure passage 502 after a temperature-conducting flowing medium such as antifreeze flows out from the motor 201 is subjected to heat exchange with the low-pressure low-temperature refrigerant passing through the low-pressure passage 502, so that the temperature of the antifreeze is reduced, wherein the heat dissipation loop 400 is provided with a radiator 401 and a fan 402, the warm air loop 300 is provided with a warm air water pump 301 and a warm air heat exchanger 302, the warm air heat exchanger 302 is correspondingly arranged with an evaporator 5022 of the low-pressure passage 502, and a blower 303 is arranged around the evaporator 5022, so that humid cool air is blown to a passenger cabin, after the antifreeze flows out from the warm air water pump 301, the antifreeze is subjected to heat exchange with the condenser 5012 in the high-pressure passage 501, and the temperature of the antifreeze is thereby heated, that the passenger is subjected to heat exchange with the motor loop 200 and the air loop 300 through the low-pressure passage 5021 and the evaporator 5022, so that the passenger is indirectly heated or cooled, compared with the passenger cabin, the prior art, the heat is reduced in number, the weight and the weight of the passenger can be reduced, compared with the prior art, the heat management system has the requirements, and the weight of the passenger can be more fully realized, and the weight can be reduced.

Table 1 is a summary table of four communication modes of the six-way valve 100 and the corresponding thermal management system effects of the four-way valve 100 according to the embodiment of the present application, where the first row is a communication mode, the second row is a specific communication mode of the main valve 100, the third row is an opening ratio of the three-way proportional valve 505 (when the opening ratio of the three-way proportional valve 505 is 0%, the high-temperature high-pressure refrigerant flowing out of the compressor does not enter the battery loop 503 through the first stop valve 5033), the fourth row is whether the third stop valve 5034 is opened, that is, when the opening ratio of the three-way proportional valve 505 is not 0%, the high-temperature high-pressure refrigerant does not pass through the third stop valve 5034, when the low-temperature low-pressure refrigerant formed by the first electronic expansion valve 5015 passes through the third stop valve 5034, the fifth row is whether the first electronic expansion valve 5015 is opened, that is whether the high-temperature high-pressure refrigerant passes through the first electronic expansion valve 5015, that is whether the second electronic expansion valve 5014 is opened, that is whether the high-temperature high-pressure refrigerant passes through the second electronic expansion valve 5014, that is not passed through the third electronic expansion valve 501, that is not the high-pressure refrigerant passes through the second electronic expansion valve 5014, that is not, the third row is not opened through the thermal management system, and the thermal management system is not achieved, and the two-time is not opened, and the two thermal management effects are achieved.

TABLE 1

The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail by adopting specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Example 1

Fig. 1 is a schematic diagram of a first communication mode of a six-way valve of a thermal management system provided in this embodiment, in the first communication mode, a first outlet 1 is communicated with a third outlet 3, a second outlet 2 is communicated with a sixth outlet 6 in the interior of the six-way valve 100, a fourth outlet 4 is communicated with a fifth outlet 5, at this time, the opening rate of a three-way proportional valve 505 is 0%, both the first electronic expansion valve 5015 and the second electronic expansion valve 5014 are in a closed state, the third electronic expansion valve 5013 is in a fully opened working mode, the third stop valve 5034 is in a closed state, so that a loop is formed by a motor loop 200, a warm air loop 300 and a heat dissipation loop 400 which are communicated with six outlets of the six-way valve 100 in series, and a high pressure loop 501 and a low pressure loop 502 in a refrigerant loop 500 are all communicated, when the refrigerant loop 500 is in a closed state, a warm air pump 301 is in a working state, and by filling an expansion in the motor loop as a filling port, an antifreezing solution is filled into the motor loop and a water tank is started under the action of a static water tank, thereby the thermal management system is prepared to be filled.

Further, in the first communication mode, in the single-battery cooling mode, the first electronic expansion valve 5015 is in a working mode, the second electronic expansion valve 5014 and the third electronic expansion valve 5013 are both in a closed state, and the third stop valve 5034 is in an open state, when the compressor and the warm air water pump 301 are both in a working state, the high-temperature and high-pressure gaseous refrigerant formed after the refrigerant is processed by the compressor enters the high-pressure channel 501, after the high-temperature and high-pressure gaseous refrigerant passes through the condenser 5012 and rapidly dissipates heat, the high-temperature and high-pressure gaseous refrigerant is converted into a high-temperature and high-pressure liquid refrigerant, meanwhile, the condenser 5012 transfers heat acquired from the high-temperature and high-pressure gaseous refrigerant to a flowing medium in the warm air loop 300, after the high-temperature and high-pressure liquid refrigerant is cooled by the first electronic expansion valve 5015, the formed low-temperature and low-pressure gaseous refrigerant absorbs heat generated by the battery working through the battery cooling plate 5031, the low-temperature and low-pressure gaseous refrigerant after the heat generated by the battery working is absorbed through the battery pack comprising the battery cooling plate 5031, the high-temperature and low-pressure state is transferred into a high-pressure liquid refrigerant in an open state, the high-pressure and flows through the third stop valve 5012 to the high-pressure gaseous refrigerant in the high-pressure loop, and the high-pressure gaseous refrigerant is cooled again, and flows into the high-pressure air loop 300; with respect to the motor circuit 200, when the antifreeze passes through DCDC (direct current/direct current converter)/OBC (on-board charger), the motor controller, and the motor 201 under the action of the motor water pump, heat generated by the operation thereof is transferred to a passing flowing medium such as the antifreeze, the antifreeze after absorbing the heat enters into the warm air circuit 300 through the six-way valve 100, at this time, the flowing medium such as the antifreeze in the warm air circuit 300 also has heat transferred into the warm air circuit 300 by the condenser 5012, so that the antifreeze after absorbing the heat generated by the operation of the motor 201 and the heat transferred by the condenser 5012 is transferred into the heat dissipation circuit 400 again through the six-way valve 100 under the action of the warm air water pump 301, the heat is discharged to the surrounding environment through the cooperation of the radiator 401 and the fan 402, and the cooled antifreeze is transferred into the motor circuit 200 through the six-way valve 100, thereby realizing the cooling of the motor, that is, the heat in the battery and the heat generated by the motor 201 is transferred into the surrounding environment, thereby effectively improving the heat utilization efficiency.

Further, in the first communication mode, the single passenger cabin is in a refrigerating or dehumidifying mode, the third electronic expansion valve 5013 is in a working mode, the second electronic expansion valve 5014 and the first electronic expansion valve 5015 are both in a closed state, and the third stop valve 5034 is in a closed state, when the compressor and the warm air water pump 301 are both in working states, the high-temperature and high-pressure gaseous refrigerant formed by the refrigerant after the compressor treatment passes through the high-pressure channel 501, and after the refrigerant is cooled and depressurized through the third electronic expansion valve 5013, the low-temperature and low-pressure gaseous refrigerant is formed into the evaporator 5022 in the low-pressure channel 502, so that the ambient air temperature is reduced to form cold air, and cold air is blown to the passenger cabin through the blower 303 to realize refrigerating and dehumidifying of the passenger cabin, and the passenger cabin is heated and compensated through the condenser 5012, and simultaneously, the high-temperature and high-pressure gaseous refrigerant compressed by the compressor is cooled through the warm air loop 300 and the heat dissipation loop 400 by the condenser 5012, the refrigerant in the high-temperature and high-pressure liquid is formed by the refrigerant in the high-temperature and high-pressure channel 501, and the refrigerant in the low-temperature and low-pressure channel 502 is taken away by the evaporator 502 and flows to the coaxial pipe 502 after the low-temperature and low-pressure refrigerant is compressed. With respect to the motor circuit 200, when the antifreeze passes through DCDC (direct current/direct current converter)/OBC (on-board charger), a motor controller, and the motor 201 under the action of a motor water pump, heat generated by the operation thereof is transferred to a flowing medium such as the antifreeze, the antifreeze after absorbing the heat enters into the warm air circuit 300 through the six-way valve 100, the heat of the refrigerant circuit dissipates heat through the condenser 5012, the heat in the high-temperature and high-pressure gaseous refrigerant is brought into the warm air circuit 300, the antifreeze is sent into the heat dissipation circuit 400 through the six-way valve 100, the antifreeze is further cooled by the cooperation of the radiator 401 and the fan 402, and the cooled antifreeze is sent into the motor circuit 200 through the six-way valve 100, thereby realizing the cooling of the motor.

Further, in the first communication mode, the battery and the passenger cabin are simultaneously in a cooling mode, the first electronic expansion valve 5015 and the third electronic expansion valve 5013 are both in a working mode, the second electronic expansion valve 5014 is in a closed state, the third stop valve 5034 is in an open state, when the compressor and the warm air water pump 301 are both in a working state, the high-temperature and high-pressure gaseous refrigerant formed by the refrigerant after being processed by the compressor passes through the high-pressure channel 501, after the high-temperature and high-pressure gaseous refrigerant passes through the condenser 5012 to rapidly dissipate heat, the high-temperature and high-pressure gaseous refrigerant is converted into a high-temperature and high-pressure liquid refrigerant, meanwhile, the condenser 5012 transfers the heat acquired from the high-temperature and high-pressure gaseous refrigerant into the warm air loop 300, after the high-temperature and high-pressure gaseous refrigerant is cooled and depressurized by the first electronic expansion valve 5015 and the third electronic expansion valve 5013, the low-temperature low-pressure gas-liquid mixed state refrigerant is formed to enter the battery cooling plate 5031 and the evaporator 5022 in the low-pressure passage 502 respectively to realize cooling of the battery matched with the battery cooling plate 5031, and simultaneously cold air formed by the evaporator 5022 is blown to the passenger cabin through the blower 303 to realize cooling of the passenger cabin, the low-temperature low-pressure gas refrigerant flows to the compressor after passing through the third stop valve 5034 and the evaporator 5022 in the low-pressure passage 502 and the coaxial pipe 504, and when the antifreeze passes through the DCDC (direct current/direct current converter)/OBC (on-board charger), the motor controller and the motor 201 under the action of the motor water pump, heat generated by the operation is transferred to the flowing medium such as the antifreeze, the antifreeze after absorbing the heat enters the warm air circuit 300 through the six-way valve 100, at this time, the antifreeze in the warm air circuit 300 also has heat transferred from the condenser 5012 to the warm air circuit 300, so that the antifreeze after absorbing the heat is sent to the heat dissipation circuit 400 through the six-way valve 100 under the action of the warm air water pump 301, the heat is discharged to the surrounding environment through the cooperation of the radiator 401 and the fan 402, that is, the heat in the battery and the heat generated by the motor 201 are transferred to the surrounding environment, and the antifreeze after cooling is sent to the motor circuit 200 through the six-way valve 100, thereby realizing the cooling of the motor, and effectively improving the utilization efficiency of the heat.

Example two

Fig. 2 is a schematic diagram of a second communication mode of a six-way valve of a thermal management system provided in this embodiment, in the second communication mode, a first outlet 1 is communicated with a fourth outlet 4, a second outlet 2 is communicated with a third outlet 3 inside the six-way valve 100, a fifth outlet 5 is communicated with a sixth outlet 6, at this time, the opening rate of the three-way proportional valve 505 is 0%, the first electronic expansion valve 5015 and the second electronic expansion valve 5014 are both in a closed state, the third electronic expansion valve 5013 is in a fully open working mode, at this time, a motor cooling mode and a passenger cabin heating mode, the second stop valve is in a closed state, so that the motor loop 200 and the heat dissipation loop 400 which are communicated with the six outlets of the six-way valve 100 form loops, at this time, the warm air loop 300 independently forms loops, is not communicated with the motor loop 200 and the heat dissipation loop 400, a high-temperature high-pressure air refrigerant is formed after the refrigerant is processed by a compressor, and after entering the high-pressure passage 501, heat exchange is performed between the condenser 5012 and the flowing medium in the warm air loop 300, heat is transferred to the antifreeze in the warm air loop 300, and because the warm air loop 300 is not communicated with other loops at this time, heat acquired by the condenser 5012 is continuously accumulated in the warm air loop 300, and the passenger cabin is heated by the warm air heat exchanger 302, of course, the passenger cabin can be further heated by arranging a heater in the warm air loop 300, and heat is supplemented, so that heating of the passenger cabin is realized, when the antifreeze passes through DCDC (direct current/direct current converter)/OBC (on-board charger), a motor controller and the motor 201 under the action of a motor water pump, the heat generated by the motor 201 is transferred to the flowing medium such as the antifreeze passing through, the antifreeze fluid after absorbing heat enters the heat dissipation loop 400 through the six-way valve 100, and the radiator 401 and the fan 402 are matched to cool the antifreeze fluid and send the cooled antifreeze fluid to the motor loop 200 through the six-way valve 100, so as to cool the motor.

Further, in the second communication mode, in the passenger cabin heating mode, when the second electronic expansion valve 5014 is in the working mode, the first electronic expansion valve 5015 and the third electronic expansion valve 5013 are both in the closed state, when the temperature of the antifreeze in the motor loop 200 is lower than the temperature of the external environment, the antifreeze in the motor loop 200 is absorbed into the low-temperature low-pressure liquid coolant through the Chiller5021, after entering the high-pressure channel 501, the low-temperature low-pressure liquid coolant is subjected to heat exchange with the flowing medium in the warm air loop 300 through the condenser 5012, and the passenger cabin is heated through the warm air heat exchanger 302, and after the high-temperature high-pressure coolant is processed into the low-temperature low-pressure liquid mixed state coolant through the second electronic expansion valve 5014, the antifreeze in the low-pressure channel 502 is subjected to heat exchange with the antifreeze in the motor loop 200 through the refrigerator, and the antifreeze in the Chiller5021 absorbs the heat of the external environment is subjected to the low-temperature low-pressure liquid coolant, and the low-temperature low-pressure liquid coolant is sent to the compressor again after the refrigerant is subjected to heat exchange with the low-temperature low-pressure liquid coolant through the Chiller5021, and the refrigerant after the heat is subjected to heat exchange with the high-temperature low-pressure coolant is carried out by the compressor, and the refrigerant is sent into the heat exchanger through the heat exchanger 302 through the heat exchanger for cooling the passenger cabin 100, and the passenger cabin is cooled through the heat exchange valve 100, and the heat is further cooled through the heat exchange efficiency is further achieved, and the passenger cabin is cooled through the heat-absorbing the heat of the refrigerant in the heat has been subjected to the heat with the heat has high temperature low temperature coolant, and the antifreeze fluid is cooled to the antifreeze is subjected to the heat.

Further, in the second communication mode, in the passenger cabin heating mode, when the first electronic expansion valve 5015 and the second electronic expansion valve 5014 are both in the working mode, the third electronic expansion valve 5013 is in the closed state, when the second stop valve is in the closed state, the refrigerant forms a high-temperature and high-pressure gaseous refrigerant after being processed by the compressor, and after entering the high-pressure passage 501, the refrigerant exchanges heat with the flowing medium in the warm air circuit 300 through the condenser 5012 therein to heat the passenger cabin, and the high-temperature and high-pressure gaseous refrigerant is processed into a low-temperature and low-pressure gaseous refrigerant through the second electronic expansion valve 5014 therein, the refrigerant exchanges heat with the antifreeze fluid after absorbing the heat of the motor in the motor circuit 200 through the refrigerator in the low-pressure passage 502, when the antifreeze fluid temperature in the motor circuit 200 is lower than the external environment temperature, the low-temperature low-pressure gaseous refrigerant after absorbing the external environment heat is sent to the compressor for treatment again through the Chiller5021, meanwhile, the high-temperature high-pressure gaseous refrigerant is treated to be a low-temperature low-pressure gas-liquid mixed state refrigerant through the first electronic expansion valve 5015, the low-temperature low-pressure gas-liquid mixed state refrigerant passes through the battery cold plate 5031 in the battery loop 503 to realize the refrigeration of the battery, namely, the heat generated by the battery is absorbed, after the heat of the battery is carried to the low-temperature low-pressure gaseous refrigerant in the low-pressure channel 502, the low-temperature low-pressure gaseous refrigerant absorbing the external environment heat and the heat of the battery flows to the compressor to be formed into a high-temperature high-pressure gaseous refrigerant again, and the passenger cabin is heated through the condenser 5012 in the high-pressure channel 501 and the warm air heat exchanger 302 in the warm air loop 300, so that the heat utilization efficiency is effectively improved.

Further, in the second communication mode, in the battery heating mode, when the second electronic expansion valve 5014 and the third electronic expansion valve 5013 are both in the working mode, the first electronic expansion valve 5015 is in the closed state, the second stop valve is in the closed state, and when the opening rate of the three-way proportional valve 505 is 100%, the refrigerant forms a high-temperature and high-pressure gaseous refrigerant after being processed by the compressor, and after entering the high-pressure passage 501, the high-temperature and high-pressure gaseous refrigerant further passes through the first stop valve 5033, the battery cooling plate 5031 and the one-way valve 5035 which are opened in the battery circuit 503, heats the battery through the battery cooling plate 5031 therein, the high-temperature and high-pressure refrigerant flowing out of the one-way valve 5035 flows into the high-pressure passage 501 and then passes through the second electronic expansion valve 5014 and the third electronic expansion valve 5013 to be processed into a low-temperature and low-pressure gas-liquid mixed refrigerant, the low-temperature low-pressure gas-liquid mixed refrigerant passes through the evaporator 5022 in the low-pressure passage 502, when the vehicle is in a charged state and no one is in the vehicle, the air heat is transferred to the low-temperature low-pressure gas refrigerant through the evaporator 5022, meanwhile, the heat generated by the motor 201 in the motor circuit 200 is absorbed by the low-temperature low-pressure gas refrigerant in the low-pressure passage 502 through the heat exchange between the refrigerator, namely the Chiller5021, in the low-pressure passage 502, and the low-temperature low-pressure gas refrigerant which absorbs the heat generated by the motor 201 and the air heat acquired by the evaporator 5022 flows to the compressor to be formed into the high-temperature high-pressure gas refrigerant again, namely the battery is heated through the heat generated by the absorption motor 201 and the air heat, so that the heat utilization efficiency is improved.

Further, in the second communication mode, the battery and the passenger cabin are simultaneously in a heating mode, when the second electronic expansion valve 5014 is in a working mode, the first electronic expansion valve 5015 and the third electronic expansion valve 5013 are both in a closed state, the second stop valve is in a closed state, and when the opening rate of the three-way proportional valve 505 is between 0% and 100%, when the refrigerant is processed by the compressor, a high-temperature high-pressure gaseous refrigerant is formed, and after the refrigerant enters the high-pressure passage 501, the high-temperature high-pressure refrigerant also passes through the first stop valve 5033, the battery cold plate 5031 and the one-way valve 5035 which are opened in the battery circuit 503, heats the battery through the battery cold plate 5031 therein, and exchanges heat with the flowing medium in the warm air circuit 300 through the condenser 5012 in the high-pressure passage 501, the flowing medium after absorbing heat heats the passenger cabin through the warm air heat exchanger 302, the high-temperature and high-pressure gaseous refrigerant flowing out of the check valve 5035 flows into the high-pressure passage 501 and is processed into a low-temperature and low-pressure gaseous refrigerant through the second electronic expansion valve 5014, the low-temperature and low-pressure gaseous refrigerant exchanges heat with the antifreeze fluid in the motor circuit 200 after absorbing the heat of the motor through the refrigerator in the low-pressure passage 502, namely the Chiller5021, so as to absorb the heat of the ambient air of the motor 201, and the low-temperature and low-pressure gaseous refrigerant after absorbing the heat of the ambient air of the motor 201 flows into the compressor through the coaxial pipe 504 to be formed into the high-temperature and high-pressure gaseous refrigerant again, namely the battery and the passenger cabin are heated through absorbing the heat of the ambient air of the motor, thereby effectively improving the utilization efficiency of the heat.

Example III

Fig. 3 is a schematic diagram of a third communication mode of the six-way valve of the thermal management system provided in this embodiment, in the third communication mode, the first outlet 1 is communicated with the second outlet 2 inside the six-way valve 100, the third outlet 3 is communicated with the fourth outlet 4, the fifth outlet 5 is communicated with the sixth outlet 6, and at this time, the opening rate of the three-way proportional valve 505 is 0%, the first electronic expansion valve 5015, the second electronic expansion valve 5014 and the third electronic expansion valve 5013 are all in a closed state, the third stop valve is in a closed state, so that the motor circuit 200, the heat dissipation circuit 400 and the warm air circuit 300 which are communicated with the six outlets of the six-way valve 100 form a circuit independently, and are not communicated with other circuits, when the compressor in the refrigerant circuit 500 is in a closed state, the motor circuit 200 is in a heat storage mode, so that no high-temperature high-pressure refrigerant and low-temperature low-pressure refrigerant are generated in the refrigerant circuit 500, and the warm air pump 301 in the warm air circuit 300 is also in a closed state, and only when the motor 201 in the motor circuit 200 is in a working state, the motor 201 is working, and the motor 201 is working and generates heat, and the motor 201 is not in a proper heat dissipation state under the heat dissipation circuit 201.

Further, in the third communication mode, in the passenger cabin heating mode, when the first electronic expansion valve 5015 and the third electronic expansion valve 5013 are both in a closed state, the second electronic expansion valve 5014 is in an operating state, and when the compressor and the warm air water pump 301 are in an operating state, after the refrigerant is processed by the compressor, a high-temperature high-pressure gaseous refrigerant is formed, and after the refrigerant enters the high-pressure channel 501, a low-temperature low-pressure gaseous refrigerant is formed after being processed by the second electronic expansion valve 5014, and passes through the Chiller5021, at this time, the motor circuit 200 is not communicated with other circuits, and heat generated by the motor 201 is accumulated in the motor circuit 200, so that the low-temperature low-pressure gaseous refrigerant in the Chiller5021 absorbs heat generated by the operation of the motor 201 and is accumulated in the motor circuit 200, and the low-temperature low-pressure gaseous refrigerant after absorbing heat generated by the operation of the motor 201 and accumulated heat in the motor circuit 200 is sent to the compressor for processing by the refrigerant circuit 500, to be formed into the high-temperature and high-pressure gaseous refrigerant again, the heat in the high-temperature and high-pressure gaseous refrigerant is used for heating the passenger cabin through the condenser 5012 and the warm air heat exchanger 302, namely, the passenger cabin is heated through the heat generated by the operation of the motor 201 and the accumulated heat in the motor loop 200, so that the heat utilization efficiency is effectively improved, when the temperature of the flowing medium such as the antifreeze in the motor loop 200 is detected to be lower than the preset value, the working temperature of the motor 201 needs to generate heat by switching the active heating mode of the motor 201, so that the heat in the motor loop 200 is conveyed to the low-temperature and low-pressure gaseous refrigerant through the Chiller5021 in the low-pressure passage 502, and the low-temperature and low-pressure gaseous refrigerant absorbing the heat in the motor loop 200 is sent to the compressor for treatment, the heat in the high-temperature and high-pressure gaseous refrigerant is formed again to heat the passenger cabin through the condenser 5012 and the warm air heat exchanger 302, after the active heating mode of the motor 201 is switched to and after the preset time, the temperature of the antifreeze in the motor loop 200 is detected to be still lower than the preset value, at this time, the heater in the warm air loop 300 is turned on to heat the flowing medium in the warm air loop 300, so that after the heated flowing medium obtains the heat from the high-temperature and high-pressure liquid refrigerant through the condenser 5012, the passenger cabin is heated through the warm air heat exchanger 302, that is, the passenger cabin is heated through absorbing the heat in the motor loop 200, so that the heat loss is less, and the utilization efficiency of the heat is effectively improved, and meanwhile, the required valve assembly quantity is reduced.

Further, in the third communication mode, in the passenger cabin heating mode, when the second electronic expansion valve 5014 and the third electronic expansion valve 5013 are both in the closed state, the first electronic expansion valve 5015 is in the working state, and the compressor and the warm air water pump 301 are in the working state at this time, and the third stop valve 5034 is in the open state, the motor circuit 200 is in the heat storage mode at this time; when the refrigerant is processed by the compressor to form a high-temperature high-pressure gaseous refrigerant, and then the high-pressure gaseous refrigerant enters the high-pressure passage 501, the low-temperature low-pressure gaseous refrigerant is processed by the first electronic expansion valve 5015 to form a low-temperature low-pressure gaseous refrigerant, and then the low-pressure gaseous refrigerant passes through the battery cold plate 5031, so that heat generated by the battery working in cooperation with the battery cold plate 5031 is absorbed, the low-temperature low-pressure gaseous refrigerant absorbing the heat of the battery is sent to the compressor for processing by the third stop valve 5034 and the high-pressure passage 501 of the refrigerant circuit 500, so that the heat in the high-temperature high-pressure gaseous refrigerant formed again is transferred to the flowing medium in the warm air circuit 300 by the condenser 5012, and the flowing medium absorbing the heat in the high-temperature high-pressure liquid refrigerant passes through the warm air heat exchanger 302 to heat the passenger cabin, namely, the passenger cabin is heated by absorbing the heat generated by the battery working, and additional valve combinations are not needed, thereby effectively improving the heat utilization efficiency.

Further, in the third communication mode, in the passenger cabin heating mode, when the first electronic expansion valve 5015 and the second electronic expansion valve 5014 are both in an operating state, the third electronic expansion valve 5013 is in a closed state, and the compressor and the warm air water pump 301 are in an operating state, and the third stop valve 5034 is in an open state, the refrigerant is processed by the compressor to form a high-temperature and high-pressure gaseous refrigerant, and enters the high-pressure passage 501, and the low-temperature and low-pressure gaseous refrigerant formed after being respectively processed by the first electronic expansion valve 5015 and the second electronic expansion valve 5014 passes through the battery cold plate 5031 and the beller 5021 in the low-pressure passage 502, the heat generated by the battery operation and the heat in the motor loop 200 are absorbed, and the low-temperature low-pressure gaseous refrigerant after absorbing the heat is sent to the compressor again for treatment, so that the heat in the high-temperature high-pressure gaseous refrigerant formed again is transferred to the flowing medium in the warm air loop 300 through the condenser 5012, and the flowing medium after absorbing the heat in the high-temperature high-pressure gaseous refrigerant through the condenser 5012 is heated by the warm air heat exchanger 302, namely, the passenger cabin is heated by absorbing the heat in the battery and the motor loop 200, and no additional other valve assembly is needed, so that the heat utilization efficiency is effectively improved.

Further, in the third communication mode, in the battery heating mode, when the second electronic expansion valve 5014 is in the working state, the first electronic expansion valve 5015 and the third electronic expansion valve 5013 are both in the closed state, and at this time, the three-way proportional valve 505 is opened by 100%, the compressor is in the working state, the warm air water pump 301 is in the closed state, and the third stop valve 5034 is in the closed state, after the refrigerant is processed by the compressor to form a high-temperature high-pressure gaseous refrigerant, because the opening rate of the three-way proportional valve 505 is 100%, the high-temperature high-pressure gaseous refrigerant passes through the first stop valve 5033, the battery cold plate 5031 and the check valve 5035 which are opened in the battery circuit 503, heats the battery when passing through the battery cold plate 5031 therein, the high-temperature high-pressure gaseous refrigerant flowing out of the check valve 5035 flows into the high-pressure passage 501 and then passes through the second electronic expansion valve 5014 to be processed into a low-temperature low-pressure gaseous refrigerant, the low-temperature low-pressure gaseous refrigerant absorbs heat in the motor loop 200 through the refrigerator in the low-pressure passage 502, namely the Chiller5021, and the low-temperature low-pressure gaseous refrigerant after absorbing the heat is sent to the compressor again for treatment, so that the heat in the high-temperature high-pressure gaseous refrigerant formed again is conveyed to the battery cooling plate 5031 to heat the battery, namely the battery is heated through absorbing the heat in the motor loop 200, when the temperature of the flowing medium such as antifreeze in the motor loop 200 is detected to be lower than a preset value, the heat in the motor loop 200 is increased through switching the active heating mode of the motor 201, the low-temperature low-pressure gaseous refrigerant in the Chiller5021 is sent to the compressor for treatment after absorbing the heat in the motor loop 200, the heat in the high-temperature high-pressure gaseous refrigerant formed again is conveyed to the battery cooling plate 5031 to heat the battery, so that the utilization efficiency of the heat is effectively improved, wherein the warm air water pump 301 is in an off state, and the passenger compartment is not heated at this time.

Further, in the third communication mode, in the battery heating mode, when the second electronic expansion valve 5014 and the third electronic expansion valve 5013 are both in an operating state, the first electronic expansion valve 5015 is in a closed state, and at this time, the opening rate of the three-way proportional valve 505 is 100%, the compressor and the warm air water pump 301 are in an operating state, and when the third stop valve 5034 is in a closed state, the refrigerant is processed by the compressor to form a high-temperature high-pressure gaseous refrigerant, and then, because the opening rate of the three-way proportional valve 505 is 100%, the high-temperature high-pressure gaseous refrigerant passes through the first stop valve 5033, the battery cold plate 5031 and the one-way valve 5035 which are opened in the battery circuit 503, the battery is heated when the high-temperature high-pressure gaseous refrigerant flowing out of the one-way valve 5035 flows into the high-pressure passage 501, and then passes through the second electronic expansion valve 5014 and the third electronic expansion valve 5013 to be processed into a low-temperature low-pressure gaseous refrigerant, after passing through the refrigerator, i.e. the beller 5021 and the evaporator 5022, in the low-pressure passage 502, the low-temperature low-pressure gaseous refrigerant absorbs the heat in the motor loop 200 through the beller 5021 in the low-pressure passage 502 and the air heat in the passenger compartment through the evaporator 5022, and sends the low-temperature low-pressure gaseous refrigerant absorbing the heat in the motor loop 200 and the air heat in the passenger compartment to the compressor for treatment, so that the heat in the reformed high-temperature high-pressure gaseous refrigerant is carried to the battery cooling plate 5031 for heating the battery, i.e. the heat in the motor loop 200 and the air heat in the passenger compartment is absorbed, thereby effectively improving the utilization efficiency of the heat, leading the temperature of the battery to rise rapidly under the condition that no passengers are in the vehicle and charging is needed, charging under the condition of proper battery temperature, to improve charging efficiency.

Further, in the third communication mode, the battery and the passenger cabin are simultaneously in a heating mode, when the second electronic expansion valve 5014 is in a working state, the first electronic expansion valve 5015 and the third electronic expansion valve 5013 are both in a closed state, and the opening rate of the three-way proportional valve 505 is between 0% and 100%, the compressor and the warm air water pump 301 are in a working state, and when the third stop valve 5034 is in a closed state, the refrigerant is processed by the compressor to form a high-temperature and high-pressure refrigerant, and because the opening rate of the three-way proportional valve 505 is between 0% and 100%, the high-temperature and high-pressure refrigerant forms a high-temperature and high-pressure liquid refrigerant after passing through the condenser 5012, so that heat in the high-temperature and high-pressure liquid refrigerant is transferred to a flowing medium in the warm air loop 300, wherein because the warm air water pump 301 is in the working state, at this time, under the action of the warm air water pump 301, when the flowing medium after absorbing heat passes through the warm air heat exchanger 5022, ambient air is heated, so that by the cooperation of the blower 303 and the warm air heat exchanger 5022, hot air around the warm air heat exchanger 5022 is blown to the passenger cabin, thereby heating the passenger cabin, meanwhile, the high-temperature and high-pressure gaseous refrigerant passes through the first stop valve 5033, the battery cooling plate 5031 and the check valve 5035 which are opened in the battery loop 503, when passing through the battery cooling plate 5031 therein, the high-temperature and high-pressure gaseous refrigerant flowing out of the check valve 5035 flows into the high-pressure passage 501 and then passes through the second electronic expansion valve 5014 for being processed into a low-temperature and low-pressure gaseous refrigerant; after the low-temperature low-pressure gaseous refrigerant passes through the refrigerator in the low-pressure passage 502, namely the Chiller5021, to absorb the heat in the motor loop 200, the low-temperature low-pressure gaseous refrigerant absorbing the heat in the motor loop 200 is sent to the compressor for treatment, so that the heat in the high-temperature high-pressure gaseous refrigerant formed again is conveyed to the battery cooling plate 5031 to heat the battery and the passenger cabin, namely the heat in the motor loop 200 is absorbed to heat the battery and the passenger cabin, and the heat utilization efficiency is effectively improved.

Example IV

Fig. 4 is a schematic diagram of a fourth communication mode of a six-way valve of a thermal management system provided in this embodiment, in the fourth communication mode, in a passenger cabin heating mode, a first outlet 1 is communicated with a second outlet 2 inside a six-way valve 100, a third outlet 3 is communicated with a sixth outlet 6, a fifth outlet 5 is communicated with a fourth outlet 4, at this time, the opening rate of a three-way proportional valve 505 is 0%, a first electronic expansion valve 5015 and a second electronic expansion valve 5014 are both in a closed state, a third electronic expansion valve 5013 is in a fully open mode, when the third stop valve is in a closed state, a circuit is formed by a motor circuit 200 and a warm air circuit 300 which are communicated with six outlets of the six-way valve 100, and are not communicated with a heat dissipation circuit 400, when a compressor in the refrigerant circuit 500 is in a closed state, a warm air pump 301 is in an operating state, so that no high-temperature high-pressure refrigerant is generated in the refrigerant circuit 500, only when the motor 201 in the motor loop 200 is in a working state, heat is generated due to the working of the motor 201, the heat is not dissipated through the heat dissipation loop 400, and under the action of the motor water pump in the motor loop 200, flowing media such as antifreeze in the motor loop 200 enter the warm air loop 300, and because the warm air water pump 301 is in a working state, at the moment, under the action of the warm air water pump 301, high-temperature flowing media entering the warm air loop 300 pass through the warm air heat exchanger 5022, after the ambient air of the warm air heat exchanger 5022 absorbs the heat of the flowing media to form hot air, the hot air around the warm air heat exchanger 5022 is blown to a passenger cabin through the cooperation of the blower 303, so that the passenger cabin is heated, the heat generated by the motor loop 200 is effectively utilized, the heat utilization efficiency is improved, and through the control of different communication modes in the six-way valve 100, the number of unnecessary valve element combinations is reduced.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (12)

1. A thermal management system for a new energy vehicle, the new energy vehicle comprising a motor, a six-way valve, a battery, and a passenger compartment, the thermal management system comprising:

a motor loop for adjusting a motor temperature of the motor;

the warm air loop is used for adjusting the temperature of the passenger cabin;

the heat dissipation loop is used for adjusting the temperatures of the motor loop and the warm air loop;

the refrigerant loop is used for adjusting the battery temperature of the battery, assisting in adjusting the motor temperature and the passenger cabin temperature, and is used for carrying out heat exchange on the motor loop and the warm air loop;

The six-way valve comprises six outlets, one or more of the six outlets are communicated with the motor loop, the warm air loop and the heat dissipation loop outside the six-way valve, the six outlets are communicated with each other in any two inside the six-way valve, the six-way valve comprises a plurality of communication modes, and the outlets which are communicated with each other in two-by-two mode are different in different communication modes, so that the motor loop, the heat dissipation loop and the warm air loop form different loops.

2. The thermal management system of claim 1, wherein a first adjacent two outlets of the six-way valve are in communication with the motor circuit, a second adjacent two outlets of the six-way valve are in communication with the heat dissipation circuit, and a third adjacent two outlets of the six-way valve are in communication with the warm air circuit.

3. The thermal management system of claim 2, wherein the refrigerant circuit comprises a high pressure passage provided with a plurality of electronic expansion valves and a low pressure passage provided with a refrigerator and an evaporator, the high pressure passage and the low pressure passage being in communication through the plurality of electronic expansion valves;

the high-pressure passage and the low-pressure passage are also respectively in communication with the battery circuit.

4. A thermal management system according to claim 3 wherein the battery circuit comprises a battery cooling plate having a plurality of shut-off valves connected to one side thereof and in communication with the high pressure passage and the low pressure passage respectively through the plurality of shut-off valves, and the electronic expansion valve and a check valve connected to the other side thereof, wherein an outlet of the check valve is in communication with the high pressure passage, the battery cooling plate being adapted to exchange heat with the battery, the check valve being adapted to control the unidirectional flow of the high pressure refrigerant.

5. The thermal management system of claim 2, wherein the heat dissipation circuit comprises a heat sink with a fan disposed around the heat sink for directing high temperature air around the heat sink;

and two ends of the radiator are respectively connected with corresponding outlets in the second adjacent two outlets.

6. A thermal management system according to claim 3 wherein the warm air circuit comprises a warm air water pump and a heat exchanger, the heat exchanger and the evaporator being disposed in correspondence and a blower disposed around the evaporator for directing cryogenic air to the passenger compartment;

One outlet of the third adjacent two outlets of the six-way valve is connected with the heat exchanger, and the other outlet is connected with the warm air water pump.

7. A thermal management system according to claim 3, wherein in the first communication mode of the six-way valve, the motor circuit, the warm air circuit and the heat dissipation circuit are connected in series to form a circuit.

8. The thermal management system of claim 7, wherein in the first communication mode of the six-way valve, the low pressure passage in which the refrigerator is located is not in communication with the battery circuit such that the low pressure passage in which the evaporator is located is in communication with the battery circuit.

9. A thermal management system according to claim 3, wherein in the second mode of communication of the six-way valve, the motor circuit is in communication with the heat dissipation circuit and neither is in communication with the warm air circuit.

10. The thermal management system of claim 9, wherein in the second communication mode of the six-way valve, the low pressure passage in which the evaporator is located is not in communication with the battery circuit such that the low pressure passage in which the refrigerator is located is in communication with the battery circuit.

11. The thermal management system of claim 2, wherein in the third communication mode of the six-way valve, the motor circuit, the warm air circuit, and the heat dissipation circuit are each independent and do not communicate with each other.

12. The thermal management system of claim 2, wherein in a fourth communication mode of the six-way valve, the motor circuit is in communication with the warm air circuit and neither is in communication with the heat dissipation circuit.