CN215804755U

CN215804755U - Heat management device and vehicle

Info

Publication number: CN215804755U
Application number: CN202121681501.2U
Authority: CN
Inventors: 李明辉
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-02-11
Anticipated expiration: 2031-07-22

Abstract

The utility model relates to the technical field of new energy automobiles, and provides a heat management device and a vehicle. The waste heat recovery and conversion device comprises a thermal conversion device and a heat regeneration device, wherein the thermal conversion device is provided with an input end, a first output end and a second output end. The heat generated by the heat dissipation system of the new energy automobile is absorbed and processed by the first heat exchange device, and then enters the thermal conversion device of the waste heat recovery conversion device to be converted into mechanical energy, the first output end of the thermal conversion device is transmitted to the external power generation equipment, and meanwhile, steam which is not fully expanded is discharged from the second output end of the thermal conversion device to the heat regeneration device to be heated and then returns to the first heat exchange device again. The heat can circularly flow, the requirement of continuous use is met, and the use efficiency of the heat is improved. The heat management device of the present application has a higher heat energy conversion efficiency.

Description

Heat management device and vehicle

Technical Field

The utility model relates to the technical field of new energy automobiles, and particularly provides a heat management device and a vehicle with the same.

Background

The new energy automobile refers to all other energy automobiles except gasoline and diesel engines, including fuel cell automobiles, hybrid automobiles, hydrogen energy power automobiles, solar automobiles and the like, and has low exhaust emission, and most of the new energy automobiles sold in the Chinese market are hybrid automobiles and pure electric automobiles at present. The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source, integrates advanced technologies in the aspects of power control and driving of the automobile, and is advanced in technical principle, new in technology and new in structure.

The heat-generating components of the new energy electric automobile mainly comprise a motor, an electric control system, a power battery pack and the like, and the heat generated by each component can be converted through a thermal conversion device under different operating conditions such as different operating environments, quick charging and discharging, acceleration and deceleration, braking, turning and the like in summer and winter, namely the heat energy is converted into mechanical energy. However, existing thermal management devices have low thermal energy conversion efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heat management device, and aims to solve the problem that the existing heat management device of a new energy automobile is low in heat energy conversion efficiency.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the heat management device comprises a first heat exchange device and a waste heat recovery conversion device, wherein the first heat exchange device is used for being communicated with a heat dissipation system of a new energy automobile to realize heat transmission interaction, the waste heat recovery conversion device comprises a thermal conversion device and a heat regeneration device, the thermal conversion device is provided with an input end, a first output end and a second output end, the input end is used for being communicated with the first heat exchange device, the first output end is used for being connected with peripheral power generation equipment, the second output end is used for releasing steam which does not complete expansion, the steam which does not complete expansion is output through the second output end and then returns to the first heat exchange device through the heat regeneration device, and finally returns to the input end.

The utility model has the beneficial effects that: the heat management device provided by the utility model has the following working process that the heat dissipation system of the new energy automobile generates heat in work, namely low-grade heat is absorbed by the first heat exchange device, heated and warmed to form saturated or superheated steam, then the saturated or superheated steam enters the thermal conversion device of the waste heat recovery conversion device, the heated thermal energy is converted into mechanical energy by the thermal conversion device, the first output end of the thermal conversion device is transmitted to the peripheral power generation equipment, meanwhile, in the conversion process of the thermal conversion device, the incompletely expanded steam is not utilized, therefore, the incompletely expanded steam is discharged from the second output end of the thermal conversion device to the heat recovery device, the heat recovery device is utilized to heat and warm to form completely expanded steam, the completely expanded steam returns to the first heat exchange device again to perform heat exchange, and finally returns to the thermal conversion device from the input end, the heat can circularly flow, the requirement of continuous use is met, and the use efficiency of the heat is improved. The heat management device of the present application has a higher heat energy conversion efficiency.

In one embodiment, the waste heat recovery and conversion device comprises a second heat exchange device, the thermal conversion device further comprises a third output end for releasing exhaust steam, and the exhaust steam passes through the second heat exchange device, the heat regeneration device and the first heat exchange device in sequence after being output by the third output end and finally returns to the input end.

Through adopting above-mentioned technical scheme, utilize second heat transfer device to collect the exhaust steam of thermal power conversion device to, heat through backheating device, finally get back to first heat transfer device and carry out the heat exchange, provide the heat of new round for thermal power conversion device.

In one embodiment, the waste heat recovery and conversion device further comprises a first pump body, and the second heat exchange device is communicated with the heat recovery device through the first pump body, so that heat energy is transmitted from the second heat exchange device to the heat recovery device.

Through adopting above-mentioned technical scheme, add first pump body, improve the transmission efficiency of heat by second heat transfer device to backheating device.

In one embodiment, the waste heat recovery and conversion device further comprises a second pump body, and the heat recovery device is communicated with the first heat exchange device through the second pump body, so that heat energy is transmitted from the heat recovery device to the first heat exchange device.

By adopting the technical scheme, the second pump body is additionally arranged, so that the transmission efficiency of heat from the heat regenerative device to the first heat exchange device is improved.

In one embodiment, the second heat exchange device includes a heat exchange main body, at least two heat exchange subsections communicated with the heat exchange main body, and a control valve for connecting the heat exchange main body and the corresponding heat exchange subsections.

By adopting the technical scheme, low-grade heat enters the corresponding heat exchange sub-parts through the heat exchange main body part and the control valves, and meanwhile, the on-off state of the corresponding control valves is adjusted according to the heat generation difference of the heat dissipation system and the difference of vehicle operation scenes, so that the waste heat recovery achieves the best effect.

In one embodiment, a flow meter is further arranged between the heat recovery device and the heat exchange main body part.

Through adopting above-mentioned technical scheme, add the flowmeter, come the control to adjust the heat total amount that gets into in the heat transfer main part.

In one embodiment, the heat management device comprises a cooling water circulation device communicated with the second heat exchange device, and the cooling water circulation device comprises a water storage tank and a power pump which are sequentially communicated with the second heat exchange device.

Through adopting above-mentioned technical scheme, cooling water circulating device's effect carries out the heat exchange cooling to second heat transfer device to avoid whole heat cycle flow channel's intensification too high, specifically, the cooling water storage is in the water storage tank, and, provide power for the cooling water circulation through the power pump.

In one embodiment, the power generation apparatus includes a speed reduction portion connected to the first output terminal of the thermal conversion device and a power generation portion for connecting the speed reduction portion.

Through adopting above-mentioned technical scheme, the mechanical energy drive power generation part electricity generation of thermal power conversion device's first output, the electric energy of production can be for backup battery use or directly supply power for each electronic parts of car to and the speed reduction part is used for reducing the output of first output, with the work of matching power generation part.

In one embodiment, the number of the thermal conversion devices is multiple and corresponds to the number of the first heat exchange devices, the second output end of the previous thermal conversion device is communicated with the input end of the next thermal conversion device, and the second output end of the last thermal conversion device is communicated with the heat regeneration device; and/or the second output end of each thermal conversion device is communicated with the heat regeneration device.

By adopting the technical scheme, when a plurality of heat dissipation systems are communicated with the corresponding first heat exchange devices, each first heat exchange device corresponds to one heat conversion device, and therefore the requirement for collecting and utilizing the heat of the corresponding heat dissipation systems is met. Meanwhile, the second output end of the last thermal conversion device is communicated with the input end of the next thermal conversion device, and the second output end of the tail thermal conversion device is communicated with the heat regeneration device, so that incompletely expanded steam of each thermal conversion device is collected in a centralized manner and heated in a unified manner to become completely expanded steam which is supplied to the first heat exchange device. Or the second output end of each thermal conversion device is communicated with the heat recovery device, and the centralized collection and the unified heating of steam which is not expanded can be realized.

In a second aspect, the present application also provides a vehicle comprising the thermal management device described above.

The utility model has the beneficial effects that: the vehicle provided by the utility model can effectively improve the distribution and management of heat on the basis of the heat management device.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a thermal management device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second heat exchange device of the thermal management device according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a thermal conversion device of the thermal management device according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100. a thermal management device; 10. a first heat exchange means; 20. a waste heat recovery and conversion device; 30. a cooling water circulating device; 21. a thermal conversion device; 22. a heat regenerative device; 23. a second heat exchange means; 21a, an input end; 21b, a first output end; 21c, a second output end; 21d, a third output end; 24. a first pump body; 25. A second pump body; 231. a heat exchange main body part; 232. a heat exchanger sub-section; 233. a control valve; 40. a flow meter; 31. A water storage tank; 32. a power pump; 50. a power generation device; 51. a power generation unit; 52. a deceleration section.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The new energy automobile generally has a motor cooling system, an electronic control cooling system, a battery pack cooling system and the like, most of working heat generated by each cooling system is supplied to a cab as warm air through a heat exchanger, and the heat is recycled, that is, the heat is converted into mechanical energy, however, the conversion efficiency of the existing heat management device is low. In view of the above problems, the present application provides a thermal management device, which refers to the following implementation processes:

referring to fig. 1 and fig. 3, the present application provides a thermal management device 100, which is used for communicating with a heat dissipation system of a new energy vehicle to achieve heat transmission interaction, where the heat dissipation system may be a motor heat dissipation system, an electronic control heat dissipation system, a battery pack heat dissipation system, and the like. The heat management device 100 includes a first heat exchange device 10 for communicating with a heat dissipation system, and a waste heat recovery and conversion device 20 communicated with the first heat exchange device 10. All the devices are communicated through pipelines, and in order to prevent heat energy from being dissipated in the pipelines, organic working media are usually filled in the pipelines, namely the organic working media are used for assisting heat transfer, and specifically, the organic working media can be halogenated hydrocarbons (CFCs), Hydrochlorofluorocarbons (HCFCs), Hydrofluorocarbons (HFCs), alkanes (HCs) and the like. In the implementation process, the first heat exchanger 10 is used to communicate with each heat dissipation system, and the number of the heat dissipation systems can be increased or decreased according to the number of the heat dissipation systems, so as to ensure that the low-grade heat generated by each heat dissipation system can enter the first heat exchanger 10. Specifically, the first heat exchanging device 10 is an evaporator, and the like, and generally, the evaporator mainly includes a heating chamber and an evaporating chamber, low-grade heat energy enters the heating chamber to make the heating chamber provide heat required by evaporation to the liquid, so as to promote boiling and vaporization of the liquid, and the evaporating chamber completely separates gas from liquid, so that the generated steam power is transmitted to the waste heat recovery and conversion device 20. The waste heat recovery and conversion device 20 comprises a thermal conversion device 21 and a heat recovery device 22. The thermal conversion device 21 has an input end 21a for communicating with the first heat exchange device 10, a first output end 21b for connecting with an external power generation device, and a second output end 21c for releasing steam which is not expanded, and the steam which is not expanded is output through the second output end 21c, then returns to the first heat exchange device 10 through the heat recovery device 22, and finally returns to the input end 21 a. Similarly, the devices are also communicated through pipelines. Wherein. Here, the thermal conversion device 21 is capable of converting heat generated by the steam into mechanical energy, and specifically, the thermal conversion device 21 may be a high-pressure centripetal turbo expander or a low-pressure centripetal turbo expander. Specifically, the first output terminal 21b of the thermal conversion device 21 is connected to the power generation device 50, so that the mechanical energy is converted into electric energy by the power generation device 50, and the generated electric energy is supplied to a battery or directly to various electronic components of the vehicle. Meanwhile, during the working process of the thermal conversion device 21, a part of steam which is not expanded is generated, that is, the heat carried by the steam cannot satisfy the work of the thermal conversion device 21. In order to make full use of this portion of the incompletely expanded steam, the second output 21c of the thermal conversion device 21 is in communication with a recuperator 22, where the recuperator 22 may be a recuperator or the like. The regenerator is also called a gas-liquid heat exchanger. A heat exchange apparatus for subcooling and superheating a refrigerant liquid in a freon refrigeration system utilizes refrigerant vapor from an evaporator to cool the high pressure liquid prior to entering the evaporator. Namely, the heat recovery device 22 is used for heating and warming the steam which is not expanded, and the steam which is expanded is introduced into the first heat exchange device 10 again to realize reuse.

The heat management device 100 provided by the present invention has an operation process that the heat dissipation system of the new energy vehicle generates heat, that is, low-grade heat, and the low-grade heat is absorbed by the first heat exchange device 10, heated to raise the temperature to form saturated or superheated steam, and then the saturated or superheated steam enters the thermal conversion device 21 of the waste heat recovery conversion device 20, and the heated thermal energy is converted into mechanical energy by the thermal conversion device 21, and the first output end 21b of the thermal conversion device 21 is transmitted to the external power generation equipment 50, and meanwhile, during the conversion process of the thermal conversion device 21, the incompletely expanded steam is not utilized, so that the incompletely expanded steam is discharged from the second output end 21c of the thermal conversion device 21 to the heat recovery device 22, and the heat recovery device 22 is used for heating to raise the temperature to form completely expanded steam, and the completely expanded steam returns to the first heat exchange device 10 again, heat exchange is carried out, and finally the heat returns to the thermal conversion device 21 from the input end 21a, so that the heat can circularly flow, the requirement of continuous use is met, and the use efficiency of the heat is improved. The thermal management device 100 of the present application has a higher thermal energy conversion efficiency.

Referring to fig. 1, in an embodiment, the number of the first heat exchangers 10 is three, each first heat exchanger 10 corresponds to the motor heat dissipation system, the electronic control device heat dissipation system, and the battery pack heat dissipation system in sequence, and collects low-grade heat corresponding to the heat dissipation system. At the same time, there are also the thermal conversion devices 21 corresponding to the number of the first heat exchange devices 10, and the power generation equipment 50 corresponding thereto. Specifically, the first heat exchange device 10 in the first position is communicated with the input end 21a of the first-position thermal conversion device 21, the first heat exchange device 10 in the second position is communicated with the input end 21a of the second-position thermal conversion device 21, and so on. And the second output ends 21c of the thermal conversion devices 21 are converged and communicated with the heat recovery device 22 through a pipeline, so that the steam which is not expanded in each thermal conversion device 21 is uniformly heated and heated by the heat recovery device 22, and the steam which is expanded is transmitted back to the corresponding first heat exchange device 10 or one of the first heat exchange devices 10. Or, the second output end 21c of the last-order thermal conversion device 21 and the corresponding first heat exchange device 10 are communicated with the input end 21a of the next-order thermal conversion device 21, and finally, the second output end 21c of the last-order thermal conversion device 21 is communicated with the heat recovery device 22, so that the above-mentioned transmission requirement can be fulfilled.

Referring to fig. 1 and fig. 2, in an embodiment, the waste heat recovery and conversion device 20 includes a second heat exchange device 23, the thermal conversion device 21 further has a third output end 21d for releasing exhaust steam, and the exhaust steam passes through the second heat exchange device 23, the heat recovery device 22 and the first heat exchange device 10 in sequence after being output through the third output end 21d, and finally returns to the input end 21 a. It can be understood that, besides the steam which is not expanded, the thermal conversion device 21 also generates exhaust steam in the conversion process, the exhaust steam is low-grade heat energy, that is, heat energy which cannot be utilized, the exhaust steam of the thermal conversion device 21 is collected by the second heat exchange device 23, a mixed organic working medium is formed in the second heat exchange device 23, the mixed organic working medium is introduced into the heat recovery device 22 by the second heat exchange device 23 to be heated, and finally the exhaust steam returns to the first heat exchange device 10 to be subjected to heat exchange, so as to provide a new round of heat for the thermal conversion device 21. Here, the second heat exchange device 23 may adjust the specific gravity of heat in the transfer path using low-grade heat energy, thereby optimizing the performance of the power generation equipment 50.

Referring to fig. 1, in an embodiment, the waste heat recovery and conversion device 20 further includes a first pump body 24, and the second heat exchanging device 23 is connected to the heat recovery device 22 through the first pump body 24, so that heat energy is transferred from the second heat exchanging device 23 to the heat recovery device 22. It can be understood that the second heat exchanging device 23 is communicated with the heat regenerating device 22 through a pipeline, and an organic working medium for assisting heat transmission is usually filled in the pipeline, and the first pump body 24 is used for driving the organic working medium to be transmitted from the second heat exchanging device 23 to the heat regenerating device 22, that is, the organic working medium in the first thermodynamic sub-cycle provides transmission power, that is, heat is transmitted from the second heat exchanging device 23 to the heat regenerating device 22.

Referring to fig. 1, in an embodiment, the waste heat recovery and conversion device 20 further includes a second pump 25, and the heat recovery device 22 is connected to the first heat exchanging device 10 through the second pump 25, so that heat energy is transferred from the heat recovery device 22 to the first heat exchanging device 10. It can be understood that the second pump 25 is used for driving the organic working medium to be transmitted by the heat recovery device 22 and the first heat exchange device 10, that is, providing transmission power for the organic working medium in the thermodynamic cycle, that is, enabling heat to be transmitted from the heat recovery device 22 to the first heat exchange device 10.

Referring to the drawings, in one embodiment, the second heat exchanging device 23 includes a heat exchanging main body 231, at least two heat exchanging subsections 232 communicated with the heat exchanging main body 231, and a control valve 233 for connecting the heat exchanging main body and the corresponding heat exchanging subsections 232. Similarly, each heat exchanger sub-section 232 also has a corresponding organic working medium therein, and the total amount of the organic working medium in each heat exchanger sub-section 232 is adjusted by each control valve 233, i.e., the total amount of heat stored in each heat exchanger sub-section 232 is controlled. Because the heat production temperature of each heat dissipation system is different in the running process of the vehicle or in the environment scenes with different temperatures, the proportion of the organic working medium in each heat exchange sub-portion 232 is adjusted through the control valve 233, so that the heat energy conversion efficiency of the heat conversion device 21 corresponding to the heat dissipation system is optimal, and meanwhile, the utilization rate of energy can be improved.

By adopting the above technical scheme, low-grade heat enters the corresponding heat exchange sub-part 232 through the heat exchange main body part 231 and the control valve 233, and simultaneously, the on-off state of the corresponding control valve 233 is adjusted according to the heat generation difference of the heat dissipation system and the difference of the vehicle operation scenes, so that the waste heat recovery achieves the best effect.

Referring to fig. 1, in an embodiment, a flow meter 40 is further disposed between the heat regenerator 22 and the heat exchange main body 231. It can be understood that the heat regenerator 22 is also communicated with the heat exchange main part 231 through a pipeline, and the pipeline is also filled with the organic working medium, so that the flow of the organic working medium flowing from the heat regenerator 22 to the second heat exchange device 23 is regulated by arranging the flow meter 40.

Referring to fig. 1, in one embodiment, the thermal management device 100 includes a cooling water circulation device 30 connected to the second heat exchange device 23, and the cooling water circulation device 30 includes a water storage tank 31 and a power pump 32 sequentially connected to the second heat exchange device 23. It is understood that the cooling water circulation device 30 is used for heat exchanging temperature reduction of the second heat exchanging device 23 to avoid over high temperature rise of the whole heat circulation flow channel, specifically, the cooling water is stored in the water storage tank 31, and the cooling water circulation is powered by the power pump 32.

Referring to fig. 1, in one embodiment, the power generation apparatus 50 includes a speed reduction part 52 connected to the first output end 21b of the thermal conversion device 21 and a power generation part 51 connected to the speed reduction part 52. The mechanical energy output by the first output terminal 21b of the thermal conversion device 21 drives the power generation unit to generate power, the generated power can be used by a backup battery or directly supply power to various electronic components of the automobile, and the speed reduction unit is used for reducing the output power of the first output terminal 21b to match the operation of the power generation unit.

The present application also provides a vehicle including the thermal management device 100 described above.

The vehicle provided by the utility model can effectively improve the distribution and management of heat on the basis of the heat management device 100.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a heat management device for communicate in order to realize heat transmission interaction with new energy automobile's cooling system, its characterized in that: the heat management device comprises a first heat exchange device and a waste heat recovery and conversion device, the first heat exchange device is used for being communicated with the heat dissipation system, the waste heat recovery and conversion device is communicated with the first heat exchange device, the waste heat recovery and conversion device comprises a thermal conversion device and a heat regeneration device, the thermal conversion device is provided with an input end, a first output end and a second output end, the input end is used for being communicated with the first heat exchange device, the first output end is used for being connected with peripheral power generation equipment, the second output end is used for releasing steam which does not complete expansion, the steam which does not complete expansion is output through the second output end and then returns to the first heat exchange device through the heat regeneration device, and finally returns to the input end.

2. The thermal management device of claim 1, wherein: the waste heat recovery and conversion device comprises a second heat exchange device, the thermal conversion device is also provided with a third output end used for releasing exhaust steam, and the exhaust steam passes through the second heat exchange device, the heat regeneration device and the first heat exchange device in sequence after being output by the third output end and finally returns to the input end.

3. The thermal management device of claim 2, wherein: the waste heat recovery and conversion device further comprises a first pump body, and the second heat exchange device is communicated with the heat recovery device through the first pump body so that heat energy is transmitted to the heat recovery device from the second heat exchange device.

4. The thermal management device of claim 1, wherein: the waste heat recovery and conversion device further comprises a second pump body, and the heat regeneration device is communicated with the first heat exchange device through the second pump body so that heat energy is transmitted from the heat regeneration device to the first heat exchange device.

5. The thermal management device of claim 2, wherein: the second heat exchange device comprises a heat exchange main body part, at least two heat exchange sub-parts communicated with the heat exchange main body part and a control valve used for connecting the heat exchange main body part and the corresponding heat exchange sub-parts.

6. The thermal management device of claim 5, wherein: and a flowmeter is also arranged between the heat regenerative device and the heat exchange main body part.

7. The thermal management device of claim 2, wherein: the heat management device comprises a cooling water circulating device communicated with the second heat exchange device, and the cooling water circulating device comprises a water storage tank and a power pump which are sequentially communicated with the second heat exchange device.

8. The thermal management device of claim 1, wherein: the power generation device comprises a speed reduction part connected to the first output end of the thermal conversion device and a power generation part connected with the speed reduction part.

9. The thermal management device of claim 1, wherein: the number of the thermal conversion devices is multiple and is corresponding to that of the first heat exchange devices, the second output end of the previous thermal conversion device is communicated with the input end of the next thermal conversion device, and the second output end of the thermal conversion device at the tail end is communicated with the heat regeneration device; and/or the second output end of each thermal conversion device is communicated with the heat regeneration device.

10. A vehicle, characterized in that: comprising a thermal management device according to any of claims 1 to 9.