CN218731256U - Automobile power cylinder battery structure based on phase change heat transfer - Google Patents

Automobile power cylinder battery structure based on phase change heat transfer Download PDF

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Publication number
CN218731256U
CN218731256U CN202222846066.5U CN202222846066U CN218731256U CN 218731256 U CN218731256 U CN 218731256U CN 202222846066 U CN202222846066 U CN 202222846066U CN 218731256 U CN218731256 U CN 218731256U
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China
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soaking plate
automobile power
battery
heat transfer
cylindrical
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CN202222846066.5U
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Chinese (zh)
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尹树彬
赵威
黄云贤
汤勇
张仕伟
黄梓滨
余小媚
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Guangdong Changneng Investment Holdings Co ltd
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Guangdong Changneng Investment Holdings Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model relates to an automobile power cylindrical battery structure based on phase change heat transfer, which comprises a water cooling plate, an automobile power cylindrical battery, heat-conducting silicone grease and an ultrathin soaking plate; the ultrathin soaking plate is adhered to the cylindrical side surface of the cylindrical automobile power battery through the heat-conducting silicone grease; the lower part of car power cylinder battery is equipped with the water-cooling board, and ultra-thin soaking plate butt in water-cooling board. The heat that automobile power cylinder battery during operation produced is through the high-efficient heat transfer of the ultra-thin soaking plate of adhesion in the cylinder side of automobile power cylinder battery, and the ultra-thin soaking plate realizes thermal quick dissipation through the water-cooling board with heat fast transfer to the water-cooling board of below. The ultrathin soaking plate covers the whole side face of the automobile power cylindrical battery, heat generated when the automobile power cylindrical battery works can be uniformly transmitted to the ultrathin soaking plate, even if the heat dissipation is uniform under high power, the heat transfer efficiency is high, and the temperature control requirements of the power battery under different working conditions can be met.

Description

Automobile power cylindrical battery structure based on phase change heat transfer
Technical Field
The utility model belongs to the technical field of the battery heat dissipation, concretely relates to automobile power cylinder battery structure based on phase transition heat transfer.
Background
The service performance and the service life of the power battery are closely related to the working temperature, the performance of the battery can be optimal only when the power battery works in a proper temperature range, and the thermal safety of the power battery can be ensured. The excessive temperature easily causes thermal runaway of the battery monomer and even the battery module, and further causes safety accidents such as combustion, explosion and the like. And excessively low temperature lowers the electrochemical reaction activity inside the battery, resulting in a sharp drop in the performance of the battery.
Although the traditional air cooling technology for the battery is simple in technology and low in cost, the low gas thermal conductivity causes low heat dissipation efficiency.
Although traditional liquid cooling technique radiating efficiency is higher, for example prior art discloses a hot samming system of electric automobile power cylinder battery liquid cooling, is connected with a inlet tube and a outlet pipe on the inlet outlet assembly, and the play water section intercommunication of inlet tube has snake shape water-cooling area, and the one end intercommunication that the inlet tube was kept away from in snake shape water-cooling area forms the circulation on the outlet pipe. According to the placing position of the cylindrical battery, the heat or cold quantity of the cooling liquid can be uniformly conducted to the heat conducting pad from the pipeline, finally the heat conducting pad is transmitted to the battery cell, and the contact area of the heat conducting pad and the battery cell is ensured to be the same, so that the temperature equalizing effect is achieved. But its application is greatly limited due to non-uniformity of heat dissipation, complex structure, high cost and potential leakage risk.
With the continuous mileage of electric vehicles and the continuous improvement of the requirements on battery energy and power density, the heat dissipation requirements of power batteries are also continuously improved, and therefore, the development of a power battery structure with high-efficiency heat dissipation is urgently needed.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model discloses an aim at: the utility model provides an automobile power cylinder battery structure based on phase transition conducts heat, simple structure, the heat dissipation is even, and heat transfer efficiency is high, can satisfy the accuse temperature demand of power battery under different work condition.
The utility model discloses the purpose is realized through following technical scheme:
an automobile power cylindrical battery structure based on phase change heat transfer comprises a water cooling plate, an automobile power cylindrical battery, heat-conducting silicone grease and an ultrathin soaking plate; the ultrathin soaking plate is adhered to the cylindrical side surface of the cylindrical automobile power battery through the heat-conducting silicone grease; the lower part of car power cylinder battery is equipped with the water-cooling board, and ultra-thin soaking plate butt in water-cooling board.
Furthermore, the substrate and the cover plate of the ultrathin soaking plate are made of copper, aluminum, carbon steel or stainless steel.
Furthermore, the thickness of the substrate of the ultrathin soaking plate is 0.1-0.2 mm.
Furthermore, the thickness of the cover plate of the ultrathin soaking plate is 0.05-0.1 mm.
Further, the liquid working medium of the ultrathin soaking plate is one of pure water, ethanol, methanol, a refrigerant, acetone and ammonia.
Furthermore, the outer side of the ultrathin soaking plate is provided with a fixing device for pressing the ultrathin soaking plate and the side face of the automobile power cylindrical battery.
Further, the fixing device is a wrapping insulating film.
Furthermore, the ultra-thin vapor chamber comprises two semi-cylindrical shell-shaped vapor chambers which surround the side surface of the cylindrical lithium battery and are spliced with each other.
Compared with the prior art, the utility model discloses following beneficial effect has:
the heat that automobile power cylinder battery during operation produced is through the high-efficient heat transfer of the ultra-thin soaking plate of adhesion in the cylinder side of automobile power cylinder battery, and the ultra-thin soaking plate realizes thermal quick dissipation through the water-cooling board with heat fast transfer to the water-cooling board of below.
The utility model discloses simple structure need not complicated setting, and ultra-thin soaking plate adhesion covers the whole side of automobile power cylinder battery in the cylinder side of automobile power cylinder battery, and the heat that automobile power cylinder battery during operation produced can transmit ultra-thin soaking plate uniformly, even also can maintain the heat dissipation under the high power evenly, and heat transfer efficiency is high, can satisfy the accuse temperature demand of power battery under different operating modes.
Drawings
Fig. 1 is a schematic view of the three-dimensional structure of the present invention.
In the figure:
1-ultrathin soaking plate, 2-automobile power cylindrical battery.
Detailed Description
The present invention is described in further detail below.
An automobile power cylindrical battery structure based on phase change heat transfer comprises an automobile power cylindrical battery 2, heat conduction silicone grease and an ultrathin soaking plate 1. The automobile power cylindrical battery 2 is in the process of normal work when the anode and the cathode are connected, chemical substances in the battery react after being electrified to emit a large amount of heat, the automobile power cylindrical battery 2 is a heat source, the external temperature is a cold source, a temperature difference is formed between the automobile power cylindrical battery and the cold source, and the heat of the automobile power cylindrical battery 2 is conducted with the cold source through the heat-conducting silicone grease and the ultrathin soaking plate 1. In order to better dissipate heat, a water cooling plate can be additionally arranged at the bottom of the cylindrical automobile power battery 2 during heat dissipation, the heat of the cylindrical automobile power battery 2 transmitted by the ultrathin soaking plate 1 is taken away, and a better heat dissipation effect can be achieved.
The process of completing internal gas-liquid circulation phase change heat transfer by the ultrathin soaking plate 1 comprises the steps that a liquid working medium with an evaporation end soaked in a liquid absorption core transfers and absorbs heat of a heat source through a shell, evaporation phase change is generated in a vacuum cavity to be changed into a steam working medium, liquid-gas phase change rapidly takes away a large amount of heat, and the steam working medium rapidly flows under the pushing of steam pressure difference in the vacuum cavity and rapidly diffuses to a condensation end; at the condensation end, a steam working medium is transferred through the shell and is taken away heat by the cold source, condensation phase change is carried out to change the steam working medium into a liquid working medium, a large amount of heat is taken away quickly by gas-liquid phase change, the liquid working medium flows back under the driving of capillary pressure of the liquid absorption core, flows to the evaporation end to continuously absorb the heat, and the whole gas-liquid circulation is completed.
In this embodiment, the ultra-thin vapor chamber 1 is manufactured based on the principle of phase change heat transfer. The material of the substrate and the cover plate of the ultrathin soaking plate 1 can be copper, aluminum, carbon steel, stainless steel and other materials suitable for solution etching, the thickness of the substrate is 0.15mm, and the thickness of the cover plate is 0.1mm.
The liquid working medium of the ultrathin soaking plate 1 is pure water.
And the outer side of the ultrathin soaking plate 1 is wrapped with an insulating film for tightly pressing the ultrathin soaking plate 1 and the side surface of the battery.
The utility model discloses utilized phase change material's phase transition heat transfer characteristics, can effectively improve automobile power cylinder battery 2's heat dispersion, made automobile power cylinder battery 2's temperature remain throughout in suitable scope, reduced automobile power cylinder battery 2 at the ascending difference in temperature of vertical side, promoted automobile power cylinder battery 2 at the ascending temperature homogeneity of vertical side to improve automobile power cylinder battery 2's performance, prolong automobile power cylinder battery 2's life.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims (8)

1. The utility model provides an automobile power cylinder battery structure based on phase transition heat transfer which characterized in that: the heat-conducting silicone grease heat-conducting plate comprises a water cooling plate, an automobile power cylindrical battery, heat-conducting silicone grease and an ultrathin soaking plate; the ultrathin soaking plate is adhered to the cylindrical side surface of the cylindrical automobile power battery through the heat-conducting silicone grease; the lower part of car power cylinder battery is equipped with the water-cooling board, and ultra-thin soaking plate butt in water-cooling board.
2. The cylindrical battery structure for vehicle power based on phase change heat transfer according to claim 1, wherein: the substrate and the cover plate of the ultrathin soaking plate are made of copper, aluminum, carbon steel or stainless steel.
3. The cylindrical battery structure for vehicle power based on phase change heat transfer according to claim 2, wherein: the thickness of the substrate of the ultrathin soaking plate is 0.1-0.2 mm.
4. The cylindrical battery structure for vehicle power based on phase change heat transfer according to claim 2, wherein: the thickness of the cover plate of the ultrathin soaking plate is 0.05-0.1 mm.
5. The cylindrical battery structure for vehicle power based on phase change heat transfer according to claim 1, wherein: the liquid working medium of the ultrathin soaking plate is one of pure water, ethanol, methanol, a refrigerant, acetone and ammonia.
6. The cylindrical battery structure for vehicle power based on phase change heat transfer according to claim 1, wherein: and a fixing device for tightly pressing the ultrathin soaking plate and the side surface of the automobile power cylindrical battery is arranged on the outer side of the ultrathin soaking plate.
7. The cylindrical battery structure for vehicle power based on phase change heat transfer according to claim 6, wherein: the fixing device is a wrapping insulating film.
8. The cylindrical battery structure for vehicle power based on phase change heat transfer according to claim 1, wherein: the ultrathin soaking plates comprise two semi-cylindrical shell-shaped soaking plates which surround the side face of the cylindrical lithium battery and are spliced with each other.
CN202222846066.5U 2022-10-27 2022-10-27 Automobile power cylinder battery structure based on phase change heat transfer Active CN218731256U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222846066.5U CN218731256U (en) 2022-10-27 2022-10-27 Automobile power cylinder battery structure based on phase change heat transfer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222846066.5U CN218731256U (en) 2022-10-27 2022-10-27 Automobile power cylinder battery structure based on phase change heat transfer

Publications (1)

Publication Number Publication Date
CN218731256U true CN218731256U (en) 2023-03-24

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Application Number Title Priority Date Filing Date
CN202222846066.5U Active CN218731256U (en) 2022-10-27 2022-10-27 Automobile power cylinder battery structure based on phase change heat transfer

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CN (1) CN218731256U (en)

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