CN118372607A - Vehicle thermal management system and vehicle - Google Patents

Abstract

The application relates to the technical field of vehicle thermal management, and discloses a vehicle thermal management system and a vehicle, wherein the vehicle thermal management system comprises: the battery pack loop is provided with a battery pack, and can radiate heat of the battery pack through antifreeze flowing inside; an air conditioning circuit provided with a condenser for radiating heat of a refrigerant flowing in the air conditioning circuit; the first heat exchanger is arranged in the air conditioning loop and the battery pack loop, and the refrigerant and the antifreezing solution can exchange heat in the first heat exchanger; the electric driving branch is provided with a driving motor and is connected with the battery pack in parallel; the antifreeze in the battery pack loop can be led into the battery pack and/or the electric drive branch circuit to radiate heat of the battery pack and/or the driving motor. Therefore, the antifreeze in the electric drive branch can radiate heat through the condenser, the setting of a low-temperature radiator can be reduced, the arrangement layer of the front-end radiating module of the vehicle is reduced, the structure is more compact, and the radiating effect of the front-end radiating module can be optimized.

Description

Vehicle thermal management system and vehicle

Technical Field

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

Background

In the thermal management system of the electric automobile, the electric drive system and the battery pack are required to dissipate heat, so that the battery pack and a driving motor in the electric drive system work in a normal temperature range, and further the electric drive system and the battery pack work normally. In order to ensure the normal heat dissipation of the electric drive system, a low-temperature radiator is arranged at the front end of the vehicle so as to dissipate heat of the driving motor. In order to ensure normal heat dissipation of the battery pack, the battery pack is usually dissipated by a condenser in an air conditioning circuit of the vehicle.

Currently, with the development of electric vehicles and the pursuit of low wind resistance, front end modeling tends to be of closed design, and only a small opening below a grille is used for heat dissipation. At this time, how to make the front-end heat dissipation module layout more compact so as to optimize the heat dissipation effect of the heat dissipation module becomes a hot spot problem.

Disclosure of Invention

In view of the above problems, the application provides a vehicle thermal management system and a vehicle, which enable the arrangement layers of the front-end heat dissipation module of the vehicle to be reduced, the structure to be more compact, and the heat dissipation effect of the front-end heat dissipation module to be optimized.

A first aspect of the present application provides a vehicle thermal management system comprising: the battery pack loop is provided with a battery pack, and can radiate heat of the battery pack through antifreeze flowing inside; the air conditioning loop is provided with a condenser which is used for radiating the refrigerant flowing in the air conditioning loop; the first heat exchanger is arranged in the air conditioning loop and the battery pack loop, and the refrigerant and the antifreeze can exchange heat in the first heat exchanger so as to realize heat dissipation of the antifreeze; the electric driving branch is provided with a driving motor and is connected with the battery pack in parallel; the anti-freezing solution in the battery pack loop can be led into the battery pack and/or the electric drive branch circuit to radiate heat of the battery pack and/or the drive motor, and is further led into the first heat exchanger to radiate heat and cool.

In some embodiments, the vehicle thermal management system further comprises an intercooler branch, wherein a water-cooled intercooler is arranged in the intercooler branch, the intercooler branch is connected with the battery pack in parallel, and the antifreeze in the battery pack loop can be led into the intercooler branch to dissipate heat of the pressurized high-temperature air through the antifreeze.

In some embodiments, the vehicle thermal management system further comprises an intercooler leg provided with a water-cooled intercooler, the intercooler leg being connected in parallel with the first heat exchanger, the refrigerant in the air conditioning loop being capable of being directed into the intercooler leg to dissipate heat from the pressurized high temperature air via the refrigerant.

In some embodiments, the vehicle thermal management system further comprises a first valve body disposed in the battery pack circuit and located at an antifreeze inlet side of the battery pack, the first valve body further communicating with one end of the electric drive branch, the first valve body being configured to control antifreeze in the battery pack circuit for introduction into the battery pack and/or the electric drive branch.

In some embodiments, the vehicle thermal management system further comprises a second valve body disposed in the electric drive branch and located at an antifreeze inlet side of the drive motor, the second valve body further communicating with one end of the intercooler branch, the second valve body being configured to control antifreeze in the electric drive branch for introduction into the drive motor and/or the intercooler branch.

In some embodiments, the vehicle thermal management system includes a first electronic water pump disposed in the electric drive branch and located on a side of the second valve body away from the drive motor, the first electronic water pump being configured to circulate antifreeze in the electric drive branch and/or the intercooler branch.

In some embodiments, the vehicle thermal management system further includes a third valve body and a self-circulation branch, the third valve body is disposed in the electric driving branch and located at an antifreeze outlet side of the driving motor, one end of the self-circulation branch is communicated with the third valve body, and the other end is communicated with a portion of the electric driving branch located between the first valve body and the driving motor; the third valve body is used for controlling the anti-freezing liquid to be led into the battery pack loop or the self-circulation branch, and when the anti-freezing liquid is led into the self-circulation branch by the third valve body, the first valve body blocks the anti-freezing liquid in the battery pack loop from being led into the electric drive branch.

In some embodiments, the vehicle thermal management system further includes a heating circuit and a second heat exchanger, the heating circuit is provided with a heater for heating the antifreeze in the heating circuit, the second heat exchanger is disposed in the battery pack circuit and the heating circuit, and when the heated antifreeze in the heating circuit enters the second heat exchanger, the antifreeze in the battery pack circuit is heated, so that the heated antifreeze in the battery pack circuit heats the battery pack.

In some embodiments, the vehicle thermal management system further comprises a second electronic water pump disposed in the battery pack circuit, the second electronic water pump being located between the first heat exchanger and the second heat exchanger, the second electronic water pump being configured to circulate antifreeze in the battery pack circuit.

A second aspect of the application provides a vehicle comprising a vehicle thermal management system as defined in any one of the preceding claims, the vehicle thermal management system being capable of dissipating heat from a battery pack and a drive motor of the vehicle.

The application has at least the following beneficial effects: the application provides a vehicle thermal management system and a vehicle, comprising: the battery pack loop is provided with a battery pack, and can radiate heat of the battery pack through antifreeze flowing inside; the air conditioning loop is provided with a condenser which is used for radiating the refrigerant flowing in the air conditioning loop; the first heat exchanger is arranged in the air conditioning loop and the battery pack loop, and the refrigerant and the antifreeze can exchange heat in the first heat exchanger so as to realize heat dissipation of the antifreeze; the electric driving branch is provided with a driving motor and is connected with the battery pack in parallel; the anti-freezing solution in the battery pack loop can be led into the battery pack and/or the electric drive branch circuit to radiate heat of the battery pack and/or the drive motor, and is further led into the first heat exchanger to radiate heat and cool. Therefore, the electric drive branch is connected with the battery pack in parallel, so that the antifreeze in the battery pack loop can enter the electric drive branch to cool the driving motor, and the antifreeze in the electric drive branch can dissipate heat through the condenser. Therefore, the arrangement of the low-temperature radiator can be reduced, the arrangement layers of the front-end radiating module of the vehicle are reduced, the structure is more compact, and the radiating effect of the front-end radiating module can be optimized.

The foregoing description is only an overview of the technical solutions of the embodiments of the present application, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present application can be more clearly understood, and the following specific embodiments of the present application are given for clarity and understanding.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of one embodiment of a vehicle thermal management system provided by the present application;

FIG. 2 is a block diagram of another embodiment of a thermal management system for a vehicle provided by the present application;

FIG. 3 is a block diagram of a further embodiment of a vehicle thermal management system provided by the present application;

FIG. 4 is a block diagram of a further embodiment of a vehicle thermal management system provided by the present application;

fig. 5 is a block diagram of a further embodiment of a vehicle thermal management system provided by the present application.

Reference numerals illustrate: the vehicle thermal management system 10, the battery pack circuit 11, the battery pack 12, the air conditioning circuit 13, the first branch 131, the second branch 132, the condenser 14, the first heat exchanger 15, the first diversion structure 151, the second diversion structure 152, the electric drive branch 16, the driving motor 17, the middle cooling branch 18, the water-cooled middle cooler 19, the third diversion structure 191, the fourth diversion structure 192, the adding Cheng Zhilu 21, the turbocharger 22, the range extender 23, the first valve body 24, the second valve body 25, the first electronic water pump 26, the third valve body 27, the self-circulation branch 28, the heating circuit 29, the second heat exchanger 31, the fifth diversion structure 311, the sixth diversion structure 312, the heater 32, the second electronic water pump 33, the high-temperature heat dissipation circuit 34, the high-temperature radiator 35, the range extender 36, the waste heat utilization circuit 37, the third valve body 38, the third electronic water pump 39, the evaporator 41, and the compressor 42.

The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present application, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

The first aspect of the present application provides a vehicle thermal management system, where the vehicle applied to the vehicle thermal management system is an electric vehicle, and the electric energy can be provided to a driving motor through a battery pack, so that the driving motor drives the vehicle to run.

FIG. 1 is a block diagram of one embodiment of a vehicle thermal management system 10 provided by the present application.

Referring to fig. 1, a vehicle thermal management system 10 includes a battery pack circuit 11, the battery pack circuit 11 being provided with a battery pack 12, the battery pack circuit 11 being capable of radiating heat from the battery pack 12 by an antifreeze fluid flowing inside. It will be appreciated that the battery pack circuit 11 includes a closed flow path to enable circulation of antifreeze fluid therein. The battery pack 12 is provided with a cavity structure for cooling the battery pack 12, which can be regarded as a part of the battery pack circuit 11. When the antifreeze with lower temperature flows into the cavity structure of the battery pack 12, the antifreeze with lower temperature exchanges heat with the part of the structure of the battery pack 12 with higher temperature, so as to realize heat dissipation and temperature reduction of the battery pack 12.

With continued reference to fig. 1, the battery pack circuit 11 is further provided with an air conditioning circuit 13, and the air conditioning circuit 13 is provided with a condenser 14, and the condenser 14 is used for radiating heat from the refrigerant flowing in the air conditioning circuit 13. It will be appreciated that the air conditioning circuit 13 includes a closed flow path through which refrigerant circulates, the portion of the piping in the condenser 14 including a flow path that is part of the flow path of the air conditioning circuit 13.

The condenser 14 is disposed at a front end of the vehicle, and when the refrigerant in the air conditioning circuit 13 flows into the condenser 14, the refrigerant exchanges heat with the air flow with a low temperature and introduced by the air inlet at the front end of the vehicle, so that the refrigerant in the condenser 14 is radiated by the air flow with the low temperature, and further the cooling of the refrigerant is realized.

With continued reference to fig. 1, the vehicle thermal management system 10 further includes a first heat exchanger 15, where the first heat exchanger 15 is disposed in the air conditioning circuit 13 and the battery pack circuit 11, and the refrigerant and the antifreeze can exchange heat in the first heat exchanger 15 to dissipate heat of the antifreeze.

Specifically, the first heat exchanger 15 is provided with a first flow guiding structure 151 and a second flow guiding structure 152, where the first flow guiding structure 151 is used for flowing the refrigerant, and at this time, the flow channel in the first flow guiding structure 151 is a part of the flow channel in the air conditioning circuit 13; the second flow guiding structure 152 is used for flowing the antifreeze, and the flow channel of the second flow guiding structure 152 is a part of the flow channel in the battery pack circuit 11. The temperature of the antifreeze in the battery pack loop 11 is increased after the temperature of the battery pack 12 is reduced, the high-temperature antifreeze enters the second flow guide structure 152 of the first heat exchanger 15, and at the moment, the temperature of the refrigerant in the first flow guide structure 151 is lower, so that the high-temperature antifreeze exchanges heat with the low-temperature refrigerant, the high-temperature antifreeze is changed into the low-temperature antifreeze, and the low-temperature antifreeze is further led into the battery pack 12 to dissipate heat of the battery pack 12, so that the cycle is realized. The refrigerant having an increased temperature enters the condenser 14 to dissipate heat, and further enters the first heat exchanger 15 to exchange heat with the high-temperature antifreeze fluid, thereby circulating.

With continued reference to fig. 1, the vehicle thermal management system 10 further includes an electric drive leg 16, wherein a drive motor 17 is disposed in the electric drive leg 16, and the electric drive leg 16 is connected in parallel with the battery pack 12. The driving motor 17 may include a front driving motor and a rear driving motor. It should be appreciated that the electric branch 16 is not a closed loop, and the electric branch 16 has opposite ends, and the two ends of the electric branch 16 are respectively connected to the portions of the battery pack loop 11 located on two sides of the battery pack 12, so as to implement parallel connection of the electric branch 16 and the battery pack 12.

In combination with the above, the antifreeze in the battery pack circuit 11 can be introduced into the battery pack 12 and/or the electric drive branch 16 to dissipate heat from the battery pack 12 and/or the drive motor 17. At this time, the antifreeze in the battery pack circuit 11 can be selectively introduced into the battery pack 12, and only the battery pack 12 is radiated at this time; or into the electric drive branch 16, in which case only the drive motor 17 is cooled; or into the battery pack 12 and the electric drive branch 16, and at this time, heat is dissipated from the battery pack 12 and the electric drive branch 16 at the same time. The temperature of the antifreeze after heat dissipation of the battery pack 12 and/or the driving motor 17 is increased, and the antifreeze after the temperature increase is further led into the first heat exchanger 15 for heat dissipation and temperature reduction.

In summary, according to the vehicle thermal management system 10 provided by the application, the electric drive branch 16 is connected with the battery pack 12 in parallel, so that the antifreeze in the battery pack loop 11 can enter the electric drive branch 16 to cool the driving motor 17, and the antifreeze in the electric drive branch 16 can dissipate heat through the condenser 14. Therefore, the arrangement of the low-temperature radiator can be reduced, the arrangement layers of the front-end radiating module of the vehicle are reduced, the structure is more compact, the air inlet distance between the front grille is increased, the air inlet flow field is optimized, and the radiating effect of the front-end radiating module can be optimized. In addition, as the types of the radiators of the front-end radiating modules are more, and the radiators are arranged in layers in the length direction of the vehicle, the radiator of the rear structural layer can achieve better radiating effect under the condition of reducing the number of arrangement layers.

Fig. 2 is a block diagram of another embodiment of a vehicle thermal management system 10 provided by the present application.

Referring to fig. 2, in some embodiments, the vehicle thermal management system 10 further includes an intercooler leg 18, in which an intercooler 19 is disposed in the intercooler leg 18, and the intercooler leg 18 is connected in parallel with the battery pack 12, and the antifreeze in the battery pack circuit 11 can be introduced into the intercooler leg 18 to dissipate heat from the pressurized high-temperature air through the antifreeze.

It should be appreciated that the relationship between the charge air branch 18 and the electric drive branch 16 may also be considered parallel at this time. In fig. 2, two ends of the intercooler 18 are respectively connected to the electric driving branch 16, and in this case, it can be considered that the electric driving branch 16 and two ends of the intercooler 18 have a common pipe section.

Specifically, the middle cooling branch 18 has opposite ends, and the two ends of the middle cooling branch 18 are respectively communicated with the portions of the battery pack circuit 11 located at the two sides of the battery pack 12, so that the middle cooling branch 18 is connected in parallel with the battery pack 12. The vehicle further comprises a supercharging branch, wherein the supercharging branch is provided with a turbocharger 22 and a water-cooling intercooler 19, external air enters the turbocharger 22 at first, so that the turbocharger 22 carries out supercharging treatment on the air, gas led out of the turbocharger 22 is high-temperature and high-pressure gas, the high-temperature and high-pressure gas is further led into the water-cooling intercooler 19 to be radiated through antifreeze, and the radiated gas is further led into the range extender to be burnt by fuel oil. It should be understood that the vehicle at this time is a range extender vehicle, and the range extender includes an engine, and the cooled gas is introduced into the engine for combustion of fuel in the engine.

More specifically, the water-cooled intercooler 19 includes a third flow guiding structure 191 and a fourth flow guiding structure 192, where the flow channel of the third flow guiding structure 191 forms a part of the flow channel in the intercooler branch 18, and the flow channel of the fourth flow guiding structure 192 forms a part of the flow channel in the plenum Cheng Zhilu. At this time, the antifreeze with a low temperature introduced into the third guide structure 191 exchanges heat with the high temperature gas with a high temperature in the fourth guide structure 192, thereby realizing heat dissipation of the high temperature gas.

It should be appreciated that in the prior art, in order to achieve heat dissipation from the charge air led out of the turbocharger 22, an air intercooler is typically provided in the vehicle front end heat dissipation module to dissipate the heat of the pressurized high temperature air through the air intercooler. Based on this embodiment, the inter-cooling branch 18 that radiates the pressurized high-temperature air is connected in parallel with the battery pack 12, so that the antifreeze in the inter-cooling branch 18 can radiate heat through the condenser 14. Therefore, the arrangement of the air intercooler in the front end module of the vehicle can be reduced, the number of radiators of the front end radiating module of the vehicle can be further reduced, the structure of the front end radiating module is more compact, and the radiating effect of the front end radiating module is further optimized.

Fig. 3 is a block diagram of a further embodiment of a vehicle thermal management system 10 provided by the present application.

In combination with fig. 3 and the above, unlike the arrangement of the intercooler 18 in the above embodiment, the intercooler 18 in this embodiment is connected in parallel with the first heat exchanger 15, and the refrigerant in the air conditioning circuit 13 can be introduced into the intercooler 18 to dissipate heat from the pressurized high-temperature air by the refrigerant.

Specifically, two ends of the middle cooling branch 18 are respectively connected with portions of the air conditioning circuit 13 located at two sides of the first heat exchanger 15, so that the middle cooling branch 18 is connected in parallel with the first heat exchanger 15. At this time, the refrigerant in the air conditioning circuit 13 is directly led into the intercooler 18, so that the refrigerant is directly led into the water-cooled intercooler 19, so as to dissipate heat of the pressurized high-temperature air through the refrigerant. The temperature of the refrigerant after heat dissipation of the high-temperature air is increased, and the refrigerant after the temperature increase is further led into the condenser 14, so that heat dissipation of the refrigerant after the temperature increase is realized through the condenser 14.

It should be appreciated that in this embodiment, the refrigerant in the intercooler 18 radiates heat through the condenser 14, and the air intercooler is not required to be separately disposed at the front end of the vehicle, so that the number of the radiators of the front end radiator module of the vehicle can be reduced, so that the front end radiator module is more compact in structure, and the heat radiation effect of the front end radiator module is optimized.

In some embodiments, referring to fig. 1, the vehicle thermal management system 10 further includes a first valve body 24, where the first valve body 24 is disposed in the battery pack circuit 11 and located at an antifreeze inlet side of the battery pack 12, the first valve body 24 is further in communication with one end of the electric drive branch 16, and the first valve body 24 is used to control antifreeze in the battery pack circuit 11 and is introduced into the battery pack 12 and/or the electric drive branch 16.

Specifically, the battery pack 12 has an antifreeze inlet and an antifreeze outlet, and the antifreeze in the battery pack circuit 11 can enter the battery pack 12 from the antifreeze inlet in the battery pack circuit 11 to realize heat dissipation to the battery pack 12, and is led out from the antifreeze outlet of the battery pack 12. The first valve body 24 is provided at the antifreeze inlet side of the battery pack 12 in the battery pack circuit 11 so as to control whether or not the antifreeze enters the battery pack 12.

In some specific application scenarios, the first valve body 24 may be a three-way valve, and has three communication ports, two of which are in communication with the battery pack circuit 11, so that the first valve body 24 is disposed in the battery pack circuit 11, and the remaining one communication port is in communication with one end of the electric driving branch 16, so that the antifreeze in the battery pack circuit 11 can be introduced into the electric driving branch 16 through the communication port.

In some embodiments, referring to fig. 2, the vehicle thermal management system 10 further includes a second valve body 25, where the second valve body 25 is disposed in the electric drive branch 16 and located at an antifreeze inlet side of the drive motor 17, the second valve body 25 is further in communication with one end of the intercooler branch 18, and the second valve body 25 is used to control antifreeze in the electric drive branch 16 for being introduced into the drive motor 17 and/or the intercooler branch 18.

Specifically, the driving motor 17 also includes an antifreeze inlet and an antifreeze outlet, and the second valve body 25 is disposed on the antifreeze inlet side of the electric driving branch 16 on the driving motor 17, so that it is convenient for the second valve body 25 to control whether the antifreeze enters the driving motor 17. The second valve body 25 may also be a three-way valve, two communication ports of the three-way valve are communicated with the electric drive branch 16, and the other communication port of the three-way valve is communicated with one end of the middle cooling branch 18, so that the second valve body 25 can guide the antifreeze in the battery pack loop 11 into the middle cooling branch 18.

Fig. 4 is a block diagram of a further embodiment of a vehicle thermal management system 10 provided by the present application.

Referring to fig. 4, in some embodiments, the vehicle thermal management system 10 includes a first electronic water pump 26, the first electronic water pump 26 being disposed in the electric drive branch 16 and located on a side of the second valve body 25 remote from the drive motor 17, the first electronic water pump 26 being configured to circulate antifreeze in the electric drive branch 16 and/or the intercooler branch 18.

It should be appreciated that the first electronic water pump 26 is driven by electrical energy to operate. When the antifreeze in the battery pack circuit 11 is introduced into the electric drive branch 16, the first electronic water pump 26 operates to drive the antifreeze in the electric drive branch 16 to flow, so that the antifreeze in the electric drive branch 16 flows. Since the first electronic water pump 26 is located at the side of the second valve body 25 away from the driving motor 17, when the antifreeze fluid flows into the intercooler 18 alone or into the intercooler 18 and the driving motor 17 simultaneously, the antifreeze fluid flows in the intercooler 18 or flows in the intercooler 18 and the driving motor 17 simultaneously when the first electronic water pump 26 works.

With continued reference to fig. 4, in some embodiments, the vehicle thermal management system 10 further includes a third valve body 27 and a self-circulation branch 28, the third valve body 27 being disposed in the electric drive branch 16 and on the antifreeze outlet side of the drive motor 17, one end of the self-circulation branch 28 being in communication with the third valve body 27 and the other end being in communication with a portion of the electric drive branch 16 between the first valve body 24 and the drive motor 17.

Specifically, the third valve body 27 may be a three-way valve, two communication ports of the third valve body 27 are connected to the electric driving branch 16, and a third communication port of the third valve body 27 is connected to one end of the self-circulation branch 28. At this time, the third valve body 27 is used to control the introduction of the antifreeze into the battery pack circuit 11 or the self-circulation branch 28, and at this time, the antifreeze discharged from the drive motor 17 can be selectively introduced into the battery pack circuit 11 or the self-circulation branch 28.

In combination with the above, when the third valve body 27 introduces the antifreeze discharged from the drive motor 17 into the self-circulation branch 28, the antifreeze is not introduced into the battery pack circuit 11. At this time, the first valve body 24 blocks the antifreeze in the battery pack circuit 11 from being introduced into the electric driving branch 16, and at this time, the antifreeze in the self-circulation branch 28 is reintroduced into the driving motor 17, thereby realizing circulation of the antifreeze. It should be understood that by the arrangement of the third valve body 27 and the self-circulation branch 28, the antifreeze in the electric drive branch 16 circulates, and the heat exchange with the outside is not realized through the heat exchanger. At this time, the driving motor 17 does not need to exchange heat with the outside, and only the internal self-circulation realizes the heat preservation function.

Continuing with fig. 4 and above, one end of the self-circulation branch 28 may specifically be in communication with a portion between the first valve body 24 and the first electronic water pump 26. Based on this arrangement, when the driving motor 17 realizes the heat preservation function through the self-circulation branch 28, the first electronic water pump 26 works to circulate the antifreeze in the self-circulation branch 28.

Fig. 5 is a block diagram of a further embodiment of a thermal cycle system for a vehicle according to the present application.

Referring to fig. 5, in some embodiments, the vehicle thermal management system 10 further includes a heating circuit 29 and a second heat exchanger 31, wherein a heater 32 for heating the antifreeze in the heating circuit 29 is disposed in the heating circuit 29, and the second heat exchanger 31 is disposed in the battery pack circuit 11 and the heating circuit 29. The second heat exchanger 31 is provided with a fifth guiding structure 311 and a sixth guiding structure 312, the fifth guiding structure 311 is used for flowing the antifreeze in the heating circuit 29, and the sixth guiding structure 312 is used for flowing the antifreeze in the battery pack circuit 11.

The heater 32 is used for heating the antifreeze in the heating circuit 29, so that the heated antifreeze can be led into the second heat exchanger 31, and then the heated antifreeze heats the antifreeze in the battery pack circuit 11, and then the heated antifreeze in the battery pack circuit 11 can heat the battery pack 12.

In some embodiments, referring to fig. 5, the vehicle thermal management system 10 further includes a second electronic water pump 33, the second electronic water pump 33 being disposed in the battery pack circuit 11, the second electronic water pump 33 being located between the first heat exchanger 15 and the second heat exchanger 31, the second electronic water pump 33 being configured to circulate antifreeze in the battery pack circuit 11.

With continued reference to fig. 5, the vehicle thermal management system 10 further includes a high-temperature heat dissipation circuit 34 and a high-temperature heat sink 35, where the high-temperature heat sink 35 and the range extender 23 are disposed in the high-temperature heat dissipation circuit 34, and heat generated by the range extender 23 can be dissipated through an antifreeze solution in the high-temperature heat dissipation circuit 34 flowing through the high-temperature heat sink 35. It should be appreciated that the high temperature radiator 35 is also part of the vehicle front end heat dissipating module.

With continued reference to fig. 5, in order to implement utilization of the waste heat of the range extender 23, the vehicle thermal management system 10 further includes a waste heat utilization circuit 37 and a third valve body 27, the third valve body 27 is disposed in the waste heat utilization circuit and the heating circuit 29, and the third valve body 27 is used for controlling the antifreeze solution led out from the second heat exchanger 31 to be led into the range extender 23 or directly led into the second heat exchanger 31 through the waste heat utilization circuit 37.

It should be appreciated that when the antifreeze is introduced into the range extender 23, the antifreeze can be heated by the waste heat of the range extender 23, so that the heated antifreeze can heat the battery pack 12, and further, the waste heat of the range extender 23 can be utilized. In this application scenario, the heater 32 may not be operated, and the heating requirement for the antifreeze can be satisfied only by using the waste heat of the range extender 23.

In order to ensure that the antifreeze in the heating circuit 29 can circulate, the vehicle thermal management system 10 may further include a third electronic water pump 39, the third electronic water pump 39 being disposed in the heating circuit 29 to effect circulation of the antifreeze in the heating circuit 29.

With continued reference to fig. 5, the air conditioning circuit 13 may specifically include a first branch 131 and a second branch 132, where the first branch 131 is connected in parallel with the second branch 132, and the first branch 131 is provided with the first heat exchanger 15 in the foregoing embodiment, and the second branch 132 is provided with the evaporator 41. It will be appreciated that the refrigerant radiates heat at the evaporator 41, thereby allowing the evaporator 41 to be used for heating within the passenger compartment. It should be appreciated that a compressor 42 is also provided in the air conditioning circuit 13, the compressor 42 being used to effect a change in the state of mass of the refrigerant.

The second aspect of the present application provides a vehicle, the vehicle comprising the vehicle thermal management system 10 according to any of the above embodiments, the vehicle thermal management system 10 being capable of dissipating heat from a battery pack 12 and a drive motor 17 of the vehicle, and for details, reference may be made to the description of the above embodiments with respect to the vehicle thermal management system 10.

In summary, the vehicle thermal management system 10 and the vehicle provided by the application comprise: a battery pack circuit 11 provided with a battery pack 12, the battery pack circuit 11 being capable of radiating heat from the battery pack 12 by an antifreeze fluid flowing inside; an air conditioning circuit 13 provided with a condenser 14, the condenser 14 being for radiating heat from the refrigerant flowing in the air conditioning circuit 13; the first heat exchanger 15 is arranged in the air conditioning loop 13 and the battery pack loop 11, and the refrigerant and the antifreeze can exchange heat in the first heat exchanger 15 so as to realize heat dissipation of the antifreeze; the electric drive branch 16 is provided with a drive motor 17, and the electric drive branch 16 is connected with the battery pack 12 in parallel; the antifreeze in the battery pack circuit 11 can be introduced into the battery pack 12 and/or the electric drive branch 16 to dissipate heat of the battery pack 12 and/or the drive motor 17, and further introduced into the first heat exchanger 15 to dissipate heat and cool.

Based on the vehicle thermal management system 10 provided in any of the above embodiments, the electric drive branch 16 is connected in parallel with the battery pack 12, so that the antifreeze in the battery pack loop 11 can enter the electric drive branch 16 to cool the driving motor 17, and the driving motor 17 can dissipate heat through the condenser 14. Therefore, the arrangement of the low-temperature radiator can be reduced, the arrangement layers of the front-end radiating module of the vehicle are reduced, the structure is more compact, and the radiating effect of the front-end radiating module can be optimized.

The foregoing description is only of the optional embodiments of the present application, and is not intended to limit the scope of the application, and all the modifications of the equivalent structures described in the specification and drawings of the present application or the direct/indirect application of the present application to other related technical fields are included in the scope of the present application.

Claims (10)

1. A vehicle thermal management system, comprising:

The battery pack circuit is provided with a battery pack, and can radiate heat of the battery pack through antifreeze flowing inside;

The air conditioner comprises an air conditioner loop and a cooling device, wherein the air conditioner loop is provided with a condenser which is used for radiating the refrigerant flowing in the air conditioner loop;

the first heat exchanger is arranged in the air conditioning loop and the battery pack loop, and the refrigerant and the antifreeze can exchange heat in the first heat exchanger so as to realize heat dissipation of the antifreeze;

the electric driving branch is provided with a driving motor and is connected with the battery pack in parallel;

The anti-freezing solution in the battery pack loop can be led into the battery pack and/or the electric drive branch so as to radiate heat of the battery pack and/or the driving motor, and further led into the first heat exchanger to radiate heat and cool.

2. The vehicle thermal management system of claim 1, wherein,

The vehicle thermal management system further comprises an inter-cooling branch, wherein a water-cooling inter-cooler is arranged in the inter-cooling branch, the inter-cooling branch is connected with the battery pack in parallel, and anti-freezing liquid in the battery pack loop can be led into the inter-cooling branch so as to radiate heat of the pressurized high-temperature air through the anti-freezing liquid.

3. The vehicle thermal management system of claim 1, wherein,

The vehicle thermal management system further comprises an inter-cooling branch, the inter-cooling branch is provided with a water-cooling inter-cooler, the inter-cooling branch is connected with the first heat exchanger in parallel, and refrigerant in the air conditioning loop can be led into the inter-cooling branch so as to dissipate heat of the pressurized high-temperature air through the refrigerant.

4. The vehicle thermal management system of claim 1, wherein,

The vehicle thermal management system further comprises a first valve body, wherein the first valve body is arranged in the battery pack loop and is positioned at the anti-freezing liquid inlet side of the battery pack, the first valve body is further communicated with one end of the electric drive branch, and the first valve body is used for controlling the anti-freezing liquid in the battery pack loop to be led into the battery pack and/or the electric drive branch.

5. The vehicle thermal management system of claim 2, wherein,

The vehicle thermal management system further comprises a second valve body, wherein the second valve body is arranged in the electric drive branch and is positioned at the anti-freezing liquid inlet side of the driving motor, the second valve body is further communicated with one end of the middle cooling branch, and the second valve body is used for controlling the anti-freezing liquid in the electric drive branch to be led into the driving motor and/or the middle cooling branch.

6. The vehicle thermal management system of claim 5,

The vehicle thermal management system comprises a first electronic water pump, wherein the first electronic water pump is arranged in the electric drive branch and is positioned at one side of the second valve body away from the driving motor, and the first electronic water pump is used for realizing circulation of antifreeze in the electric drive branch and/or the intercooling branch.

7. The vehicle thermal management system of claim 4,

The vehicle thermal management system further comprises a third valve body and a self-circulation branch, wherein the third valve body is arranged in the electric drive branch and is positioned at the anti-freezing liquid outlet side of the driving motor, one end of the self-circulation branch is communicated with the third valve body, and the other end of the self-circulation branch is communicated with the part of the electric drive branch, which is positioned between the first valve body and the driving motor;

The third valve body is used for controlling the anti-freezing liquid to be led into the battery pack loop or the self-circulation branch, and when the anti-freezing liquid is led into the self-circulation branch by the third valve body, the first valve body blocks the anti-freezing liquid in the battery pack loop from being led into the electric drive branch.

8. The vehicle thermal management system of claim 1, wherein,

The vehicle thermal management system further comprises a heating loop and a second heat exchanger, wherein a heater for heating the antifreeze in the heating loop is arranged in the heating loop, the second heat exchanger is arranged in the battery pack loop and the heating loop, and when the heated antifreeze in the heating loop enters the second heat exchanger, the antifreeze in the battery pack loop is heated, so that the heated antifreeze in the battery pack loop heats the battery pack.

9. The vehicle thermal management system of claim 8,

The vehicle thermal management system further comprises a second electronic water pump, the second electronic water pump is arranged in the battery pack loop, the second electronic water pump is located between the first heat exchanger and the second heat exchanger, and the second electronic water pump is used for achieving circulation of antifreeze in the battery pack loop.

10. A vehicle comprising a vehicle thermal management system according to any one of claims 1-9, the vehicle thermal management system being capable of dissipating heat from a battery pack and a drive motor of the vehicle.