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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China
Prior art keywords
cooling
cooling plate
liquid
cooling liquid
main pipe
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Pending
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CN202110439469.5A
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Chinese (zh)
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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Priority to CN202110439469.5A priority Critical patent/CN113178638A/en
Publication of CN113178638A publication Critical patent/CN113178638A/en
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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

The invention discloses a bionic heat dissipation device of a liquid-cooled battery pack, which comprises a base, wherein a plurality of battery module shells are placed above the base at equal intervals, a cooling plate is arranged between two adjacent battery module shells, the cooling plate is fixedly connected with the outer walls of the battery module shells through heat-conducting glue, the top of the cooling plate is fixedly connected with a first main pipe, the bottom of the cooling plate is fixedly connected with a second main pipe, the first main pipe is communicated with the second main pipe through the cooling plate, the cooling plate is processed into a spider-web-type bionic heat dissipation structure, and the inner and outer walls of the first main pipe, the second main pipe and the cooling plate are processed into rectangles: 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

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. The utility model provides a bionical heat abstractor of liquid cooling battery package, a serial communication port, including base (1), a plurality of battery module shells (2) have been placed to the top equidistance of base (1), adjacent two be equipped with cooling plate (3) between battery module shell (2), the outer wall fixed connection of cooling plate (3) through heat-conducting glue and 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 be responsible for through cooling plate (3) intercommunication between (6) No. two, cooling plate (3) are processed into the bionical heat radiation structure of spider web type, be responsible for (4) No. two and be responsible for (6) and cooling plate (3) inside and outside wall all process into the rectangle.
2. The bionic heat dissipation device of the liquid-cooled battery pack according to claim 1, wherein: the cooling device is characterized in that a cooling liquid inlet (5) is formed in the top of one end of the first main pipe (4), and a cooling liquid outlet (7) is formed in one end, far away from the cooling liquid inlet (5), of the second main pipe (6).
3. The bionic heat dissipation device of the liquid-cooled battery pack according to claim 1, wherein: the cooling plate (3) is made of aluminum alloy materials, the cooling plate (3) is of a spider-web-type bionic structure, and the heat exchange area of the cooling plate (3) is 100
Figure 133663DEST_PATH_IMAGE001
4. The bionic heat dissipation method for the liquid-cooled battery pack according to claim 1 is characterized by comprising the following steps:
s1, injecting cooling liquid into the first main pipe (4) through the cooling liquid inlet (5), enabling the cooling liquid entering the first main pipe (4) to flow to one end far away from the cooling liquid inlet (5), and enabling the cooling liquid to enter the cooling plate (3) under the action of self weight and pressure when the cooling liquid passes through the cooling plate (3) so as to absorb and take away heat absorbed by the cooling plate (3);
and S2, discharging the cooling liquid absorbing heat from the cooling liquid outlet (7) under the pressure action of the subsequent cooling liquid, cooling the cooling liquid, and pumping the cooling liquid into the cooling liquid inlet (5) again by the circulating pump to realize 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 (1)

* 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

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 of battery package

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 of battery package

Cited By (1)

* 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

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Application publication date: 20210727