CN113178638A - Bionic heat dissipation method and device for liquid-cooled battery pack - Google Patents

Bionic heat dissipation method and device for liquid-cooled battery pack Download PDF

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Publication number
CN113178638A
CN113178638A CN202110439469.5A CN202110439469A CN113178638A CN 113178638 A CN113178638 A CN 113178638A CN 202110439469 A CN202110439469 A CN 202110439469A CN 113178638 A CN113178638 A CN 113178638A
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cooling plate
main pipe
liquid
cooling
heat dissipation
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Inventor
张勇
肖业
黄河
尹万建
朱赟
毛凤朝
杨易
刘水长
王青妤
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Hunan University of Technology
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Hunan University of Technology
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6554Rods or plates
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • H01M10/6568Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本发明公开了一种液冷电池包的仿生散热装置,包括底座,底座的上方等距放置有若干电池模组外壳,相邻的两个电池模组外壳之间设有冷却板,冷却板通过导热胶与电池模组外壳的外壁固定连接,冷却板的顶部固定连接有一号主管,冷却板的底部固定连接有二号主管,一号主管与二号主管之间通过冷却板连通,冷却板加工成蜘蛛网型仿生散热结构,一号主管、二号主管和冷却板内外壁均加工成矩形,本发明的有益效果:蜘蛛网型液冷仿生散热结构冷却,具有较高的换热系数,可以迅速实现与电池之间的有效换热,降低电池包内部温度,并且蜘蛛网型液冷仿生散热结构换热面积较小,结构简单,冷却液流通性好,可以保证电池包在理想温度下工作。

Figure 202110439469

The invention discloses a bionic heat dissipation device for a liquid-cooled battery pack, which comprises a base, a plurality of battery module casings are placed at an equal distance above the base, a cooling plate is arranged between two adjacent battery module casings, and the cooling plate passes through The thermal conductive glue is fixedly connected to the outer wall of the battery module shell, the top of the cooling plate is fixedly connected with a No. 1 main pipe, and the bottom of the cooling plate is fixedly connected with a No. 2 main pipe. A spider web type bionic heat dissipation structure is formed, and the No. 1 main pipe, the No. 2 main pipe and the inner and outer walls of the cooling plate are all processed into rectangles. Quickly realize effective heat exchange with the battery, reduce the internal temperature of the battery pack, and the spider web-type liquid-cooled bionic heat dissipation structure has a small heat exchange area, a simple structure, and good coolant flow, which can ensure that the battery pack works at an ideal temperature .

Figure 202110439469

Description

Bionic heat dissipation method and device for liquid-cooled battery pack
Technical Field
The invention belongs to the technical field of cooling equipment, and particularly relates to a bionic heat dissipation method and device for a liquid-cooled battery pack.
Background
With the development of society, oil shortage and environmental pollution are important problems facing human beings, the development of new energy automobiles is a hot spot, and the core of a battery pack as a new energy automobile is important in the development of the new energy automobiles. The battery pack can generate a large amount of heat in the working process, so that the temperature of the battery pack is too high or the temperature distribution is not uniform, the service life of the battery pack is greatly influenced, and even spontaneous combustion or explosion of the electric automobile can be caused. At present, most of battery packs adopt air-cooled heat dissipation and liquid-cooled heat dissipation. The air-cooled heat dissipation is as cooling media with the air, lets the heat that the battery package gived off discharge battery package along with the air current, and this kind of radiating mode is more environmental protection, but the radiating effect is not good, can make battery package temperature inhomogeneous or produce local high temperature.
Disclosure of Invention
The invention aims to solve the problems and provide a bionic heat dissipation method and device for a liquid-cooled battery pack.
In order to solve the above problems, the present invention provides a technical solution:
the utility model provides a bionical heat abstractor of liquid cooling battery package, includes the base, a plurality of battery module shells, adjacent two have been placed to the top equidistance of base be equipped with the cooling plate between the battery module shell, the outer wall fixed connection of cooling plate through heat-conducting glue and battery module shell, the person in charge No. one of top fixedly connected with of cooling plate, the person in charge No. two of the bottom fixedly connected with of cooling plate, be responsible for No. one and communicate through the cooling plate between being responsible for No. two, the cooling plate is processed into the bionical heat radiation structure of spider web type, be responsible for No. one, No. two be responsible for and the cooling plate inside and outside wall all process into the rectangle.
Preferably, a cooling liquid inlet is formed in the top of one end of the first main pipe, and a cooling liquid outlet is formed in the end, far away from the cooling liquid inlet, of the second main pipe.
Preferably, the cooling plate is made of aluminum alloy, the cooling plate is of a spider-web bionic structure, and the heat exchange area of the cooling plate is 100
Figure 827690DEST_PATH_IMAGE001
Preferably, the bionic heat dissipation method adopting the liquid cooling battery pack comprises the following specific use steps:
s1, injecting cooling liquid into the first main pipe through the cooling liquid inlet, enabling the cooling liquid entering the first main pipe to flow to one end far away from the cooling liquid inlet, enabling the cooling liquid to enter the cooling plate under the action of self weight and pressure when the cooling liquid passes through the cooling plate, and adsorbing and taking away heat absorbed by the cooling plate;
and S2, discharging the cooling liquid absorbing heat from the cooling liquid outlet under the pressure action of the subsequent cooling liquid, and pumping the cooling liquid into the cooling liquid inlet by the circulating pump after cooling to realize the purpose of repeated heat dissipation.
The invention has the beneficial effects that: the spider web type liquid cooling bionic heat dissipation structure cools, has higher heat exchange coefficient, can realize rapidly and the battery between effective heat transfer, reduce the inside temperature of battery package to the heat transfer area of spider web type liquid cooling bionic heat dissipation structure is less, simple structure, and the coolant liquid circulation is good, can guarantee that the battery package works under ideal temperature.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic front view of the cooling plate of the present invention;
fig. 3 is a side view of the cooling plate of the present invention.
In the figure: 1. a base; 2. a battery module housing; 3. a cooling plate; 4. a first main pipe; 5. a coolant inlet; 6. a second main pipe; 7. and a cooling liquid outlet.
The specific implementation mode is as follows:
as shown in fig. 1 to 3, the following technical solutions are adopted in the present embodiment: the utility model provides a bionical heat abstractor of liquid cooling battery package, includes base 1, a plurality of battery module shells 2, adjacent two have been placed to base 1's top equidistance be equipped with cooling plate 3 between the battery module shell 2, cooling plate 3 is through the outer wall fixed connection of heat-conducting glue with battery module shell 2, the top fixedly connected with of cooling plate 3 is responsible for 4 No. one, the bottom fixedly connected with of cooling plate 3 is responsible for 6 No. two, be responsible for 4 and No. two and be responsible for between 6 through cooling plate 3 intercommunication, the bionical heat radiation structure of spider web type is processed into to cooling plate 3, be responsible for 4, No. two and be responsible for 6 and the 3 inside and outside walls of cooling plate and all process into the rectangle.
The top of one end of the first main pipe 4 is provided with a cooling liquid inlet 5, and one end of the second main pipe 6, which is far away from the cooling liquid inlet 5, is provided with a cooling liquid outlet 7.
Wherein, cooling plate 3 is made for the aluminum alloy material, cooling plate 3 is spider web type bionic structure, cooling plate 3's heat transfer area is 100
Figure 774786DEST_PATH_IMAGE001
Specifically, the method comprises the following steps: a bionic heat dissipation method and device for a liquid-cooled battery pack are characterized in that heat conducting glue is fixed on the surface of a battery pack single body, rectangular through holes are formed in a cooling plate 3, a cooling liquid inlet 5 is arranged on the upper portion of a battery module shell 2, a cooling liquid outlet 7 is arranged at the bottom of a battery pack, two groups of liquid cooling systems work simultaneously, and internal liquid working media are finally layered after flowing and finally follow the battery pack single bodyThe coolant outlet 7 flows out, and the simple spider web type bionic heat dissipation structure of the flow channel ensures that the flow of the coolant is good, a dead water area of the coolant cannot appear, and in addition, the simulation 100 is adopted
Figure 724375DEST_PATH_IMAGE001
The heat exchange area of (2) ensures that the cooling liquid is fully contacted with the battery module shell.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (4)

1.一种液冷电池包的仿生散热装置,其特征在于,包括底座(1),所述底座(1)的上方等距放置有若干电池模组外壳(2),相邻的两个所述电池模组外壳(2)之间设有冷却板(3),所述冷却板(3)通过导热胶与电池模组外壳(2)的外壁固定连接,所述冷却板(3)的顶部固定连接有一号主管(4),所述冷却板(3)的底部固定连接有二号主管(6),所述一号主管(4)与二号主管(6)之间通过冷却板(3)连通,所述冷却板(3)加工成蜘蛛网型仿生散热结构,所述一号主管(4)、二号主管(6)和冷却板(3)内外壁均加工成矩形。1. A bionic heat dissipation device for a liquid-cooled battery pack, characterized in that it comprises a base (1), a plurality of battery module casings (2) are placed equidistantly above the base (1), and two adjacent A cooling plate (3) is arranged between the battery module casings (2), the cooling plate (3) is fixedly connected to the outer wall of the battery module casing (2) through thermally conductive adhesive, and the top of the cooling plate (3) is A No. 1 main pipe (4) is fixedly connected, a No. 2 main pipe (6) is fixedly connected to the bottom of the cooling plate (3), and a cooling plate (3) is connected between the No. 1 main pipe (4) and the No. 2 main pipe (6). ) are connected, the cooling plate (3) is processed into a spider web type bionic heat dissipation structure, and the inner and outer walls of the No. 1 main pipe (4), the No. 2 main pipe (6) and the cooling plate (3) are processed into rectangles. 2.根据权利要求1所述的一种液冷电池包的仿生散热装置,其特征在于:,所述一号主管(4)的一端顶部开设有冷却液入口(5),所述二号主管(6)远离冷却液入口(5)的一端开设有冷却液出口(7)。2 . The bionic heat dissipation device for a liquid-cooled battery pack according to claim 1 , wherein: a cooling liquid inlet ( 5 ) is opened on the top of one end of the No. 1 main pipe ( 4 ), and the No. 2 main pipe (6) A coolant outlet (7) is provided at one end away from the coolant inlet (5). 3.根据权利要求1所述的一种液冷电池包的仿生散热装置,其特征在于:所述冷却板(3)为铝合金材质制成,所述冷却板(3)为蜘蛛网型仿生结构,所述冷却板(3)的换热面积为100
Figure 133663DEST_PATH_IMAGE001
3 . The bionic heat dissipation device for a liquid-cooled battery pack according to claim 1 , wherein the cooling plate ( 3 ) is made of aluminum alloy, and the cooling plate ( 3 ) is a spider web type bionic. 4 . structure, the heat exchange area of the cooling plate (3) is 100
Figure 133663DEST_PATH_IMAGE001
.
4.采用权利要求1所述的一种液冷电池包的仿生散热方法,其特征在于,包括如下步骤:4. The bionic heat dissipation method using a liquid-cooled battery pack according to claim 1, wherein the method comprises the following steps: S1、通过冷却液入口(5)向一号主管(4)内注入冷却液,进入一号主管(4)内部的冷却液向远离冷却液入口(5)的一端流动,当冷却液经过冷却板(3)时,冷却液受自重与压强的作用下进入冷却板(3)的内部,将冷却板(3)吸收到的热量吸附带走;S1. Inject coolant into the No. 1 main pipe (4) through the coolant inlet (5), and the coolant entering the No. 1 main pipe (4) flows to the end away from the coolant inlet (5). When the coolant passes through the cooling plate (3), the cooling liquid enters the interior of the cooling plate (3) under the action of its own weight and pressure, and absorbs the heat absorbed by the cooling plate (3) away; S2、吸附热量的冷却液在后续冷却液的压力作用下从冷却液出口(7)被排出,经过冷却后被循环泵重新泵入冷却液入口(5),实现反复散热的目的。S2. The cooling liquid that absorbs heat is discharged from the cooling liquid outlet (7) under the pressure of the subsequent cooling liquid, and is re-pumped into the cooling liquid inlet (5) by the circulating pump after cooling, so as to achieve the purpose of repeated heat dissipation.
CN202110439469.5A 2021-04-23 2021-04-23 Bionic heat dissipation method and device for liquid-cooled battery pack Pending CN113178638A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114204159A (en) * 2021-11-08 2022-03-18 岚图汽车科技有限公司 Battery pack cooling plate, cooling device and preparation method of battery pack cooling plate
CN115863825A (en) * 2022-10-31 2023-03-28 江苏大学 Battery liquid cooling board device and battery
CN119812584A (en) * 2025-03-10 2025-04-11 吉林大学 A spider web flow channel cold plate for lithium battery heat dissipation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202905921U (en) * 2012-10-31 2013-04-24 浙江吉利汽车研究院有限公司杭州分公司 Vehicle-mounted battery pack cooling system
CN107172859A (en) * 2017-06-19 2017-09-15 电子科技大学 A kind of MCA
CN111092277A (en) * 2019-12-31 2020-05-01 广东工业大学 Honeycomb type micro-channel cooling plate for battery thermal management and application thereof
CN212209589U (en) * 2020-05-29 2020-12-22 蜂巢能源科技有限公司 Cooling mechanism for battery pack

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202905921U (en) * 2012-10-31 2013-04-24 浙江吉利汽车研究院有限公司杭州分公司 Vehicle-mounted battery pack cooling system
CN107172859A (en) * 2017-06-19 2017-09-15 电子科技大学 A kind of MCA
CN111092277A (en) * 2019-12-31 2020-05-01 广东工业大学 Honeycomb type micro-channel cooling plate for battery thermal management and application thereof
CN212209589U (en) * 2020-05-29 2020-12-22 蜂巢能源科技有限公司 Cooling mechanism for battery pack

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114204159A (en) * 2021-11-08 2022-03-18 岚图汽车科技有限公司 Battery pack cooling plate, cooling device and preparation method of battery pack cooling plate
CN114204159B (en) * 2021-11-08 2024-12-20 岚图汽车科技有限公司 A battery pack cooling plate, cooling device and preparation method thereof
CN115863825A (en) * 2022-10-31 2023-03-28 江苏大学 Battery liquid cooling board device and battery
CN119812584A (en) * 2025-03-10 2025-04-11 吉林大学 A spider web flow channel cold plate for lithium battery heat dissipation

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