CN216086231U

CN216086231U - Heat management device and vehicle

Info

Publication number: CN216086231U
Application number: CN202121682344.7U
Authority: CN
Inventors: 李明辉; 杨政杰
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: 2022-03-18
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 work of new energy automobile's cooling system generates heat, absorb heat intensification evaporation through first heat transfer device and become saturated or overheated whole steam after, get into thermal power conversion device by the input, through thermal power conversion device with heat energy conversion mechanical energy, and, transmit to peripheral hardware power generation facility by first output, simultaneously, exhaust steam in the conversion process, get into and heat the intensification in the backheat device, after second heat transfer device condensation again, get back to backheat device department once more, and finally get back to first heat transfer device department, thereby realize thermal circulation flow, satisfy the requirement of continuous use.

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, heat generated by each component is finally and basically discharged to the atmospheric environment under different operating environments such as summer and winter, different working conditions such as quick charging and quick discharging, acceleration and deceleration, braking and turning, and the low-grade heat energy is not fully distributed and recycled, so that energy waste is caused, and the global greenhouse effect is aggravated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heat management device, and aims to solve the problem that the working heat production of main heat-producing components of the existing new energy automobile cannot be effectively utilized.

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

in a first aspect, the present application provides a thermal management device, which is used for communicating with a heat dissipation system of a new energy automobile to realize heat transmission interaction, and comprises a first heat exchange device used for communicating with the heat dissipation system, a waste heat recovery conversion device communicated with the first heat exchange device, and a cooling water circulation device communicated with the waste heat recovery conversion device, wherein the waste heat recovery conversion device comprises a thermal conversion device, a heat regeneration device, and a second heat exchange device which are sequentially communicated, the thermal conversion device has an input end used for communicating with the first heat exchange device, a first output end used for connecting with an external power generation device, and a second output end used for releasing exhaust steam, the cooling water circulation device is communicated with the second heat exchange device, and the exhaust steam passes through the heat regeneration device, the second heat exchange device, the heat regeneration device, and the first heat exchange device in sequence after being output through the second output end, and finally back to the input.

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, namely low-grade heat, the heat is absorbed by the first heat exchange device to be heated and evaporated to become saturated or overheated whole steam, the saturated or overheated whole steam enters the thermal conversion device from the input end, the thermal energy is converted into mechanical energy by the thermal conversion device, the mechanical energy is transmitted to external power generation equipment from the first output end, meanwhile, dead steam flowing out from the second output end of the thermal conversion device, namely the low-grade heat, enters the heat regeneration device to be heated and heated, is condensed by the second heat exchange device, returns to the heat regeneration device again and finally returns to the first heat exchange device, so that the heat circularly flows, and the requirement of continuous use is met. Wherein, the effect of cooling water circle device is to carry out the heat exchange cooling to second heat transfer device to avoid whole heat circulation flow channel's intensification. The application discloses heat management device carries out recycle to cooling system's work heat production, improves it and makes efficiency.

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 cooling water circulation device comprises a water storage tank and a power pump which are sequentially communicated with the heat exchange main body part.

Through adopting above-mentioned technical scheme, the cooling water storage is in the water storage tank to, provide power for 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, and at least one first heat exchange device is communicated with the input end of one of the thermal conversion devices; and/or the second output ends of the at least one first heat exchange device and the previous thermal conversion device are communicated with the input end of the next thermal conversion 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, so that the heat of the corresponding heat dissipation system is collected and utilized; or all the thermal conversion devices are communicated in sequence, namely, the exhaust steam discharged from the second output end of the previous thermal conversion device directly enters the next thermal conversion device from the input end, so that the exhaust steam discharged from all the thermal conversion devices is concentrated and uniformly heated by the heating device.

In one embodiment, the number of the first heat exchange devices is multiple, and the heat recovery device is communicated with one of the first heat exchange devices through the second pump body; or the heat recovery device is communicated with the corresponding first heat exchange devices through a plurality of second pump bodies.

Through adopting above-mentioned technical scheme, backheat device will heat the heat after the intensification flow in proper order in the first heat transfer device that corresponds, and in this process, the transmission of accessible second pump body realizes, perhaps, realizes to the first heat transfer device transmission that corresponds through a plurality of second pump bodies.

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; 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 comprises a motor heat dissipation system, an electronic control heat dissipation system, a battery pack heat dissipation system and the like, most of working heat generated by each heat dissipation system is supplied to a cab as warm air through a heat exchanger, however, a certain amount of low-grade heat or low-grade heat energy is wasted or directly discharged to the atmospheric environment, and the low-grade heat refers to low-temperature energy with low energy quality or low density, which is generally not taken into consideration by people and is difficult to use. Therefore, the heat generated by the new energy automobile is not fully utilized. 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 thermal management device 100 of the present application 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 exchanging device 10, a waste heat recovery and conversion device 20, and a cooling water circulating device 30. 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, a heat recovery device 22 and a second heat exchange device 23, and similarly, the devices are also communicated through a pipeline. 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 the external power generation equipment 50, and a second output end 21c for releasing the dead steam. 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. The thermal conversion device 21 may have a plurality of output terminals, each of which is connected to a corresponding object to be driven. 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, in the working process of the thermodynamic conversion device 21, part of the dead steam flows out, so that the released dead steam is fully utilized. The second output end 21c of the thermal conversion device 21 is communicated with the heat regenerator 22. Here, the regenerative device 22 may be a regenerator 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. The exhaust steam released from the thermal conversion device 21 is heated by the heat recovery device 22 and then enters the second heat exchange device 23 communicated with the heat recovery device 22, and the second heat exchange device 23 can be a liquid separation condenser and the like. Therefore, heat sequentially passes through the first heat exchange device 10, the thermal conversion device 21, the heat recovery device 22 and the second heat exchange device 23 to complete first transmission, then passes through the second heat exchange device 23 and the heat recovery device 22, returns to the first heat exchange device 10 to complete second transmission, and finally circulates among the devices. Wherein the second heat exchanging means 23 can adjust the specific gravity of heat in the transfer path, thereby enabling the performance of the power generating equipment 50 to be in an optimum state. And the cooling water circulation device 30 is used for performing heat exchange cooling on the second heat exchange device 23 so as to avoid overhigh temperature rise of the whole heat circulation flow channel.

The working process of the thermal management device 100 provided by the utility model is as follows: the heat dissipation system of the new energy automobile generates heat in operation, that is, low-grade heat, absorbs heat through the first heat exchange device 10, heats up and evaporates to become saturated or overheated whole steam, enters the thermal conversion device 21 from the input end 21a, converts thermal energy into mechanical energy through the thermal conversion device 21, and is transmitted to the peripheral power generation equipment 50 from the first output end 21b, meanwhile, in the conversion process of the thermal conversion device 21, dead steam flowing out of the second output end 21c of the thermal conversion device 21, that is, low-grade heat enters the heat regeneration device 22 to heat up and heat up, and returns to the heat regeneration device 22 again after being condensed by the second heat exchange device 23, and finally returns to the first heat exchange device 10, thereby realizing heat circulation flow and meeting the requirement of continuous use. The cooling water circulation device 30 is used for performing heat exchange cooling on the second heat exchange device 23 to avoid overhigh temperature rise of the whole heat circulation flow channel. The application discloses heat management device carries out recycle to cooling system's work heat production, improves it and makes 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. Each of the thermal conversion means 21 is in communication in sequence, so that at least one first heat exchange means 10 is in communication with the input 21a of one of the thermal conversion means 21, it being understood that each of the three first heat exchange means 10 is in communication with the input 21a of one of the thermal conversion means 21; of course, each first heat exchange device 10 may also be in communication with the input 21a of the corresponding thermodynamic conversion device 21. Alternatively, the second output 21c of at least one first heat exchanger 10 and the last heat exchanger 21 are both communicated with the input 21a of the next heat exchanger 21, it can be understood that each first heat exchanger 10 is communicated with each heat exchanger 21, and the heat source of the current heat exchanger 21 is the exhaust steam of the first heat exchanger 10 and the last heat exchanger 21, and finally, the exhaust steam generated by each heat exchanger 21 is intensively introduced into the heat regenerator 22.

Referring to fig. 1, in an embodiment, the number of the first heat exchanging devices 10 is multiple, and the heat recovery device 22 is connected to one of the first heat exchanging devices 10 through the second pump body; alternatively, the heat recovery device 22 is communicated with the corresponding first heat exchange device 10 through a plurality of second pump bodies. It can be understood that the heat regeneration device 22 sequentially flows the heat after being heated to the temperature in the corresponding first heat exchange device 10, and in this process, the heat can be transmitted by one second pump body, or the heat can be transmitted to the corresponding first heat exchange device 10 by a plurality of second pump bodies.

Specifically, 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. 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.

Similarly, referring to fig. 1, 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 exchange device 10 through the second pump 25. It can be understood that the second pump 25 is used to drive the organic working medium to be transferred from the heat regenerator 22 to the first heat exchanger 10, that is, to provide transfer power for the organic working medium in the second thermodynamic sub-cycle, that is, to transfer heat from the heat regenerator 22 to the first heat exchanger 10.

Specifically, referring to fig. 1 and 2, 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.

Specifically, referring to fig. 1, the cooling water circulation device 30 includes a water storage tank 31 and a power pump 32 sequentially communicated with the heat exchange main body 231. Wherein the cooling water is stored in the water storage tank 31 and the cooling water circulation is powered by the power pump 32. The water storage tank 31 is also connected to the input end 21a and the output end of the heat exchange main body 231 through pipes, thereby forming a cooling water circulation pipe. The power pump 32 is disposed on the corresponding pipe.

Referring to fig. 1, in one embodiment, the power generation apparatus 50 includes a power generation section 51 connected to an output of the thermal conversion device 21. By adopting the above technical scheme, the mechanical energy output by the output end of the thermal conversion device 21 drives the power generation part 51 to generate power, and the generated electric energy can be used by a standby battery or directly supply power to each electronic component of the automobile.

Referring to fig. 1, in one embodiment, the power generation apparatus 50 further includes a speed reduction portion 52 for connecting the output end of the thermal conversion device 21 and the power generation portion 51. By adopting the above technical solution, the output power of the thermal conversion device 21 is reduced by the speed reduction portion 52, thereby satisfying the use requirement of the power generation portion 51. Here, the speed reducing portion 52 may be a speed reducing gear box or the like.

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, a waste heat recovery conversion device and a cooling water circulation device, wherein the first heat exchange device is used for being communicated with the heat dissipation system, the waste heat recovery conversion device is communicated with the first heat exchange device, the cooling water circulation device is communicated with the waste heat recovery conversion device, the waste heat recovery conversion device comprises a thermal conversion device, a heat regeneration device and a second heat exchange device which are sequentially communicated, 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 exhaust steam, the cooling water circulation device is communicated with the second heat exchange device, and the exhaust steam is output through the second output end and then sequentially passes through the heat regeneration device, the second heat exchange device, the heat regeneration device and the first heat exchange device and finally returns to the input end.

2. The thermal management device of claim 1, 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.

3. 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.

4. The thermal management device of claim 1, 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.

5. The thermal management device of claim 4, wherein: and a flowmeter is also arranged between the heat regenerative device and the heat exchange main body part.

6. The thermal management device of claim 4, wherein: the cooling water circulating device comprises a water storage tank and a power pump which are sequentially communicated with the heat exchange main body part.

7. A thermal management device according to any of claims 1 to 6, characterized in that: 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.

8. The thermal management device of claim 1, wherein: the number of the thermal conversion devices is multiple and corresponds to that of the first heat exchange devices, and at least one first heat exchange device is communicated with the input end of one of the thermal conversion devices; and/or the second output ends of at least one first heat exchange device and the last thermal conversion device are communicated with the input end of the next thermal conversion device.

9. The thermal management device of claim 3, wherein: the quantity of the first heat exchange devices is multiple, and the heat recovery device is communicated with one of the first heat exchange devices through the second pump body; or the heat recovery device is communicated with the corresponding first heat exchange devices through a plurality of second pump bodies.

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