CN110828741A - Battery equalization heat dissipation device and heat dissipation method thereof - Google Patents

Battery equalization heat dissipation device and heat dissipation method thereof Download PDF

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Publication number
CN110828741A
CN110828741A CN201911172546.4A CN201911172546A CN110828741A CN 110828741 A CN110828741 A CN 110828741A CN 201911172546 A CN201911172546 A CN 201911172546A CN 110828741 A CN110828741 A CN 110828741A
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CN
China
Prior art keywords
battery
heat dissipation
water outlet
heat
water inlet
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Pending
Application number
CN201911172546.4A
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Chinese (zh)
Inventor
徐晶
丁亚军
王翔
丁凡
凌曦
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Yangzhou University
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Yangzhou University
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Priority to CN201911172546.4A priority Critical patent/CN110828741A/en
Publication of CN110828741A publication Critical patent/CN110828741A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to a battery equalization heat dissipation device and a heat dissipation method thereof, wherein the device comprises a device body, the device body is provided with a plurality of battery units, the outside of each battery unit is wrapped with a battery heat dissipation shell, a battery water inlet plate is arranged above the battery heat dissipation shell, and a battery water outlet plate is arranged below the heat dissipation shell; the battery heat dissipation shell comprises a high-heat-conduction inner shell and a heat insulation outer shell, a cooling liquid cavity is formed between the high-heat-conduction inner shell and the heat insulation outer shell, and the upper end and the lower end of the cooling liquid cavity are sealed; the heat insulation outer shell is provided with a water inlet pipeline and a water outlet pipeline which are communicated with the cooling liquid cavity. According to the invention, each battery unit is wrapped by the battery heat dissipation shell, so that the heat dissipation area is effectively increased. The battery heat dissipation casing includes interior casing of high heat conduction and thermal-insulated shell body, and interior casing of high heat conduction is made for high heat conduction material, can effectively improve thermal conduction to dredge away the heat in the battery unit working process through the coolant liquid, the effectual heat that dispels.

Description

Battery equalization heat dissipation device and heat dissipation method thereof
Technical Field
The invention relates to a battery equalization heat dissipation device and a heat dissipation method thereof, and belongs to the field of new energy automobile battery heat dissipation.
Background
Lithium ion batteries are receiving more and more attention from many automobile industries due to their high specific energy characteristics and national policy support. The lithium battery is used as a new energy automobile power source, and the thermal safety of the lithium battery can be increasingly paid attention to various large battery pack manufacturers.
The new energy automobile battery pack is not composed of a whole single battery, but is composed of dozens or even hundreds of single batteries. The battery package can inevitably produce a large amount of heat energy in the middle of the use, and heat gathering is disturbed between the battery, and interior battery temperature can obviously be higher than peripheral battery temperature, and if this kind of heat can not in time distribute away, not only can reduce battery cycle life, more probably can produce the battery explosion moreover.
Disclosure of Invention
The present invention aims to solve the above problems and provide a battery equalization heat dissipation device and a heat dissipation method thereof.
The invention aims to realize the purpose, and the battery equalization heat dissipation device comprises a device body and is characterized in that: the device body is provided with a plurality of battery units, the outside of each battery unit is wrapped with a battery heat dissipation shell, a battery water inlet plate is arranged above the battery heat dissipation shell, and a battery water outlet plate is arranged below the heat dissipation shell;
the battery heat dissipation shell comprises a high-heat-conduction inner shell and a heat insulation outer shell, a cooling liquid cavity is formed between the high-heat-conduction inner shell and the heat insulation outer shell, and the upper end and the lower end of the cooling liquid cavity are sealed; a water inlet pipeline and a water outlet pipeline communicated with the cooling liquid cavity are arranged on the heat insulation outer shell;
the battery water inlet plate is provided with a plurality of water inlet holes which are in one-to-one correspondence with the water inlet pipelines, the water inlet pipelines are communicated with the corresponding water inlet holes, and the joint of the battery heat dissipation shell and the battery water inlet plate is hermetically connected by adopting sealant;
the battery water outlet plate is provided with a plurality of water outlet holes which are in one-to-one correspondence with the water outlet pipelines, the water outlet pipelines are communicated with the corresponding water outlet holes, and the joint of the battery heat dissipation shell and the battery water outlet plate is hermetically connected by adopting sealant.
The upper portions of the high-heat-conduction inner shell and the heat insulation outer shell are both provided with threads, and are in threaded connection through the upper end cover.
The battery water inlet plate is provided with a water inlet plate inner flow pipeline, the shape of the water inlet plate inner flow pipeline is arc-shaped, and the water inlet hole is arranged in the water inlet plate inner flow pipeline.
The battery water outlet plate is provided with a water outlet plate inner flow pipeline, the shape of the water outlet plate inner flow pipeline is arc-shaped, and the water outlet hole is arranged in the water outlet plate inner flow pipeline.
The water inlet pipeline on the battery heat dissipation shell is in sealing connection with the battery water inlet plate through a first sealing ring, and the sealing connection part is additionally coated with a sealing glue;
and the water outlet pipeline on the battery heat dissipation shell is in sealing connection with the battery water outlet plate through a second sealing ring, and the sealing connection part is additionally coated with a sealing glue.
A method for radiating by a battery equalization radiating device is characterized in that:
the cooling liquid flows into the cooling liquid cavity of the battery heat dissipation shell through the water inlet hole of the battery water inlet plate and the water inlet hole of the battery heat dissipation shell and flows out through the water outlet hole of the battery heat dissipation shell and the water outlet hole of the battery water outlet plate;
when the cooling liquid is in the cooling liquid cavity of the battery heat dissipation shell, the heat generated by the battery unit in the battery heat dissipation shell is led out to the cooling liquid in the cooling liquid cavity and flows out through the water outlet hole of the battery heat dissipation shell and the water outlet hole of the battery water outlet plate;
when the battery units work under the high current density, the temperature of the battery units rises sharply, the battery units cannot interfere with each other, the heat is released by the same heat dissipation amount, and the battery units are guaranteed to have the same temperature.
The battery balanced heat dissipation device comprises a device body, wherein the device body is provided with a plurality of battery units, the outside of each battery unit is wrapped with a battery heat dissipation shell, a battery water inlet plate is arranged above the battery heat dissipation shell, and a battery water outlet plate is arranged below the heat dissipation shell; the battery heat dissipation shell is connected with the water inlet plate and the water outlet plate which are arranged on two sides of the battery unit through the water inlet pipeline and the water outlet pipeline.
Each battery unit is wrapped by a battery heat dissipation shell, so that the heat dissipation area is effectively increased. The battery heat dissipation shell comprises a high-heat-conduction inner shell and a heat insulation outer shell, wherein the high-heat-conduction inner shell is made of high-heat-conduction materials, so that heat conduction can be effectively improved, heat in the working process of the battery unit is conducted away through cooling liquid, and therefore heat is effectively dissipated.
The thermal-insulated shell body of battery heat dissipation casing is made for low heat conduction material to reduce thermal interference between each battery unit and heat and pile up. Therefore, the cooling liquid can be conveyed to each battery unit through the cooling liquid conveying device, the heat dissipation area is increased, the same heat dissipation condition of each battery is achieved, the mutual heat interference of the battery units is reduced, the heat dissipation efficiency of the batteries is improved, and the service life of the batteries is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of a battery heat dissipation case according to the present invention;
FIG. 3 is a schematic view of a battery inlet plate and an internal flow channel of the inlet plate according to the present invention.
FIG. 4 is a schematic view of the connection of the water inlet pipe according to the present invention.
FIG. 5 is a schematic view of the connection of the outlet conduit according to the present invention.
In the figure: the device comprises a device body 1, a battery water inlet plate 2, a battery unit 3, a battery heat dissipation shell 4, a battery water outlet plate 5, a first sealing ring 6-1, a second sealing ring 6-2, a heat insulation outer shell 401, a water inlet pipeline 402, a water outlet pipeline 403, a high heat conduction inner shell 404 and an upper end cover 405.
Detailed Description
The technical solutions in the examples of the present invention will be described in detail below with reference to the accompanying drawings in the examples of the present invention.
The utility model provides a balanced heat abstractor of battery, includes device body 1, and device body 1 is provided with a plurality of battery unit 3, and the outside of every battery unit 3 has all wrapped up battery heat dissipation casing 4, and 4 tops of battery heat dissipation casing are equipped with battery board 2 that intakes, and 4 below of heat dissipation casing are provided with battery board 5 that goes out.
The battery heat dissipation shell 4 comprises a high-heat-conductivity inner shell 404 and a heat insulation outer shell 401, a cooling liquid cavity is formed between the high-heat-conductivity inner shell 404 and the heat insulation outer shell 401, and the upper end and the lower end of the cooling liquid cavity are sealed; the heat insulation outer shell 401 is provided with a water inlet pipeline 402 and a water outlet pipeline 403 which are communicated with the cooling liquid cavity.
A plurality of water inlet holes which are in one-to-one correspondence with the water inlet pipes 402 are arranged on the battery water inlet plate 2, the water inlet pipes 402 are communicated with the corresponding water inlet holes, and the joint of the battery heat dissipation shell 4 and the battery water inlet plate 2 is hermetically connected by adopting sealant; the battery water outlet plate 5 is provided with a plurality of water outlet holes which are in one-to-one correspondence with the water outlet pipes 403, the water outlet pipes 403 are communicated with the corresponding water outlet holes, and the joint of the battery heat dissipation shell 4 and the battery water outlet plate 5 is hermetically connected by adopting sealant.
Further, the upper portions of the high thermal conductivity inner shell 404 and the thermal insulation outer shell 401 are both provided with threads, and are connected by an upper end cover 405. The battery water inlet plate 2 is provided with a water inlet plate inner flow pipeline, the shape of the water inlet plate inner flow pipeline is arc-shaped, and the water inlet hole is arranged in the water inlet plate inner flow pipeline. The battery water outlet plate 5 is provided with a water outlet plate inner flow pipeline, the shape of the water outlet plate inner flow pipeline is arc-shaped, and the water outlet hole is arranged in the water outlet plate inner flow pipeline.
Further, a water inlet pipe 402 on the battery heat dissipation shell 4 is in sealing connection with the battery water inlet plate 2 through a first sealing ring 6-1, and a sealing glue is additionally coated on the sealing connection part;
the water outlet pipe 403 on the battery heat dissipation shell 4 is hermetically connected with the battery water outlet plate 5 through a second sealing ring 6-2, and the sealing connection part is additionally coated with a sealing glue.
When the cooling device is used, the cooling liquid flows into the cooling liquid cavity of the battery heat dissipation shell 4 through the water inlet hole of the battery water inlet plate 2 and the water inlet hole of the battery heat dissipation shell 4 and flows out through the water outlet hole of the battery heat dissipation shell 4 and the water outlet hole of the battery water outlet plate 5.
When the cooling liquid is in the cooling liquid cavity of the battery heat dissipation shell 4, the heat generated by the battery unit 3 in the battery heat dissipation shell 4 is led out to the cooling liquid in the cooling liquid cavity and flows out through the water outlet hole of the battery heat dissipation shell 4 and the water outlet hole of the battery water outlet plate 5; when the battery units 3 operate under a high current density, the temperature of the single battery units 3 rises sharply, each battery unit 3 does not interfere with each other, and heat is released at the same heat dissipation amount, so that each battery unit 3 is guaranteed to have the same temperature.

Claims (6)

1. The utility model provides a balanced heat abstractor of battery, includes device body (1), its characterized in that: the device body (1) is provided with a plurality of battery units (3), the outside of each battery unit (3) is wrapped with a battery heat dissipation shell (4), a battery water inlet plate (2) is arranged above the battery heat dissipation shell (4), and a battery water outlet plate (5) is arranged below the heat dissipation shell (4);
the battery heat dissipation shell (4) comprises a high-heat-conduction inner shell (404) and a heat insulation outer shell (401), a cooling liquid cavity is formed between the high-heat-conduction inner shell (404) and the heat insulation outer shell (401), and the upper end and the lower end of the cooling liquid cavity are sealed; a water inlet pipeline (402) and a water outlet pipeline (403) communicated with the cooling liquid cavity are arranged on the heat insulation outer shell (401);
a plurality of water inlet holes which are in one-to-one correspondence with the water inlet pipelines (402) are formed in the battery water inlet plate (2), the water inlet pipelines (402) are communicated with the corresponding water inlet holes, and the joint of the battery heat dissipation shell (4) and the battery water inlet plate (2) is hermetically connected by adopting sealant;
the battery water outlet plate (5) is provided with a plurality of water outlet holes in one-to-one correspondence with the water outlet pipelines (403), the water outlet pipelines (403) are communicated with the corresponding water outlet holes, and the joint of the battery heat dissipation shell (4) and the battery water outlet plate (5) is hermetically connected by adopting sealant.
2. The device for battery equalization heat dissipation according to claim 1, wherein: the upper parts of the high-heat-conduction inner shell (404) and the heat insulation outer shell (401) are both provided with threads, and are in threaded connection through an upper end cover (405).
3. The device for battery equalization heat dissipation according to claim 1, wherein: the battery water inlet plate (2) is provided with a water inlet plate inner flow pipeline, the shape of the water inlet plate inner flow pipeline is arc-shaped, and the water inlet hole is arranged in the water inlet plate inner flow pipeline.
4. The device for battery equalization heat dissipation according to claim 1, wherein: the battery water outlet plate (5) is provided with a water outlet plate inner flow pipeline, the shape of the water outlet plate inner flow pipeline is arc-shaped, and the water outlet hole is arranged in the water outlet plate inner flow pipeline.
5. The device for battery equalization heat dissipation according to claim 1, wherein: the water inlet pipeline (402) on the battery heat dissipation shell (4) is in sealing connection with the battery water inlet plate (2) through a first sealing ring (6-1), and sealing glue is additionally coated on the sealing connection part;
and a water outlet pipeline (403) on the battery heat dissipation shell (4) is in sealing connection with the battery water outlet plate (5) through a second sealing ring (6-2), and the sealing connection part is additionally coated with a sealing glue.
6. The method for dissipating heat of a battery equalization heat sink device as claimed in any of claims 1-5, wherein:
the cooling liquid flows into the cooling liquid cavity of the battery heat dissipation shell (4) through the water inlet hole of the battery water inlet plate (2) and the water inlet hole of the battery heat dissipation shell (4), and flows out through the water outlet hole of the battery heat dissipation shell (4) and the water outlet hole of the battery water outlet plate (5);
when the cooling liquid is in the cooling liquid cavity of the battery heat dissipation shell (4), the heat generated by the battery unit (3) in the battery heat dissipation shell (4) is led out to the cooling liquid in the cooling liquid cavity and flows out through the water outlet hole of the battery heat dissipation shell (4) and the water outlet hole of the battery water outlet plate (5);
when the battery units (3) work under the high current density, the temperature of the single battery units (3) rises sharply, each battery unit (3) cannot interfere with each other, heat is released at the same heat dissipation amount, and the same temperature of each battery unit (3) is guaranteed.
CN201911172546.4A 2019-11-26 2019-11-26 Battery equalization heat dissipation device and heat dissipation method thereof Pending CN110828741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911172546.4A CN110828741A (en) 2019-11-26 2019-11-26 Battery equalization heat dissipation device and heat dissipation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911172546.4A CN110828741A (en) 2019-11-26 2019-11-26 Battery equalization heat dissipation device and heat dissipation method thereof

Publications (1)

Publication Number Publication Date
CN110828741A true CN110828741A (en) 2020-02-21

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Application Number Title Priority Date Filing Date
CN201911172546.4A Pending CN110828741A (en) 2019-11-26 2019-11-26 Battery equalization heat dissipation device and heat dissipation method thereof

Country Status (1)

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CN (1) CN110828741A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105489965A (en) * 2015-12-29 2016-04-13 宁德时代新能源科技股份有限公司 Power battery module
CN208240815U (en) * 2018-06-11 2018-12-14 上海游侠汽车有限公司 A kind of automobile power cell mould group
CN109037535A (en) * 2018-08-31 2018-12-18 西华大学 Battery structure for electric automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105489965A (en) * 2015-12-29 2016-04-13 宁德时代新能源科技股份有限公司 Power battery module
CN208240815U (en) * 2018-06-11 2018-12-14 上海游侠汽车有限公司 A kind of automobile power cell mould group
CN109037535A (en) * 2018-08-31 2018-12-18 西华大学 Battery structure for electric automobile

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Application publication date: 20200221