LU600198B1 - Heat dissipation device for new energy battery pack - Google Patents

Heat dissipation device for new energy battery pack

Info

Publication number
LU600198B1
LU600198B1 LU600198A LU600198A LU600198B1 LU 600198 B1 LU600198 B1 LU 600198B1 LU 600198 A LU600198 A LU 600198A LU 600198 A LU600198 A LU 600198A LU 600198 B1 LU600198 B1 LU 600198B1
Authority
LU
Luxembourg
Prior art keywords
cooling
liquid
package
air
cooling plate
Prior art date
Application number
LU600198A
Other languages
German (de)
Inventor
Xiaozhong Du
Original Assignee
Univ Taiyuan Science & Tech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Taiyuan Science & Tech filed Critical Univ Taiyuan Science & Tech
Application granted granted Critical
Publication of LU600198B1 publication Critical patent/LU600198B1/en

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Classifications

    • 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
    • H01M10/6561—Gases
    • H01M10/6562—Gases with free flow by convection only
    • 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
    • H01M10/62—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
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates arranged between the cells
    • 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
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • 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
    • H01M10/6561—Gases
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
    • 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

Landscapes

  • 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

A heat dissipation device for a new energy battery pack belongs to the field of new energy automobiles, and includes a liquid cooling system inside the package, an air cooling system outside the package, an upper shell, a V-shaped plate, a battery cell group, a rubber pad and a lower shell, where the liquid cooling system inside the package includes a cooling channel, a cooling liquid inlet, a longitudinal cooling plate, a transverse cooling plate and a cooling liquid outlet, and the air cooling system outside the package includes a heat exchange shell and a heat exchange core; cooling liquid flowing out of the cooling system outside the package enters the air cooling system outside the package through the cooling channel to perform air cooling heat dissipation.

Description

DESCRIPTION
HEAT DISSIPATION DEVICE FOR NEW ENERGY BATTERY PACK
TECHNICAL FIELD
The present disclosure relates to the field of new energy vehicles, and in particular to a heat dissipation device for a new energy battery pack.
BACKGROUND
The new energy battery will accelerate aging under high temperature conditions, reduce the service life, and in extreme cases may lead to safety accidents, such as liquid leakage, deflation, smoking and even explosion, so that the new energy battery needs to increase the heat dissipation device when in use, so as to ensure that the new energy battery works in the applicable temperature range. At present, there are mainly two heat dissipation devices for a new energy battery, one is to perform heat dissipation and cooling in a manner of forced convection heat transfer by using air, and the other is to add a cooling plate with a flow channel for heat dissipation. When air is used for forced convection heat dissipation, due to the defects of low heat conductivity coefficient, small heat capacity and the like of the air, the heat transfer coefficient is small, the heat dissipation and cooling efficiency is low, and the flow of the air in the battery device will not uniformly affect the temperature of the battery. When liquid cooling heat dissipation is adopted, due to the complex structure and additional components, the weight and volume of the new energy battery heat dissipation system can be increased.
Therefore, it is necessary to design a heat dissipation device for a new energy battery pack which can not only ensure liquid cooling but also make up for insufficient air cooling.
SUMMARY LU600198
An objective of the present invention is to provide a heat dissipation device for a new energy battery pack. In an liquid cooling system inside the package, the battery cell group is cooled by a transverse cooling plate and a longitudinal cooling plate formed by a TPMS lattice structure, so that it can be ensured that the new energy battery works at an applicable temperature ; in the air cooling system outside the package, the cooling liquid passing through the heat exchange core formed by the TPMS lattice structure performs air cooling and heat dissipation, so that the cooling liquid can still have a better cooling effect when passing through the transverse cooling plate and the longitudinal cooling plate again.
In order to achieve the above objective, the main technical solution adopted by the present invention includes:
The present invention provides a heat dissipation device for a new energy battery pack, including a liquid cooling system inside the package, an air cooling system outside the package, an upper shell, a V-shaped plate, a battery cell group, a rubber pad and a lower shell, where the liquid cooling system inside the package includes a cooling channel, a cooling liquid inlet, a longitudinal cooling plate, a transverse cooling plate and a cooling liquid outlet, and the air cooling system outside the package includes a heat exchange shell and a heat exchange core.
Further, the rubber pad is arranged at the bottom of the lower shell, the battery cell group, the longitudinal cooling plate and the transverse cooling plate are installed above the rubber pad in the lower shell, the cooling channel is formed in the longitudinal cooling plate and the transverse cooling plate, the V-shaped plate is arranged on the cooling channel, the lower shell is in threaded connection with the upper shell, and the rubber pad and the V-shaped plate can limit and protect the longitudinal cooling plate, the transverse cooling plate and the battery cell group to prevent displacement of the battery cell group, the longitudinal cooling plate and the transverse cooling plate.
Further, two areas formed by the TPMS lattice structure are arranged in the longitudinal cooling plate, one is a liquid flow channel area of the longitudinal cooling plate, is formed by sheet-shaped primaries in the TPMS lattice structure, and the other is a filling area of a longitudinal cooling plate phase change material, is formed by sheet- shaped diamond in the TPMS lattice structure, and the phase change material is filled in gaps of the sheet-shaped diamond.
Further, two areas formed by the TPMS lattice structure are arranged in tn 600198 transverse cooling plate, one is a liquid flow channel area of the transverse cooling plate, is formed by sheet-shaped primaries in the TPMS lattice structure, and the other is filling area of a transverse cooling plate phase change material, is formed by sheet-shaped diamond in the TPMS lattice structure, and the phase change material is filled in gaps of the sheet-shaped diamond.
Further, the transverse cooling plate and the longitudinal cooling plate are connected with the cooling channel, the cooling channel is connected with the heat exchange shell, a heat exchange core is arranged in the heat exchange shell, and the heat exchange core is obtained by sealing the TPMS lattice structure through the skin.
Further, the heat exchange shell includes a liquid inlet, a liquid outlet, an air inlet and an air outlet, the heat exchange core includes an air channel, a liquid channel, an air channel skin and a liquid channel skin, the cooling liquid passing through the liquid cooling system inside the package enters the air cooling system outside the package through the liquid inlet, the cooling liquid entering the air cooling system outside the package is diverted through the liquid channel and flows through the heat exchange core, and the cooling liquid flowing through the heat exchange core gathers at the liquid outlet and returns to the liquid cooling system inside the package to achieve cyclic utilization, convection air enters the air cooling system outside the package through the air inlet, the air entering the air cooling system outside the package is diverted through the air channel and flows through the heat exchange core, and then leaves the air cooling system outside the package.
The beneficial effects of the present invention are as follows: 1 according to the heat dissipation device for a new energy battery pack provided by the present invention, the liquid cooling system inside the package and the air cooling system outside the package work cooperatively, and an area formed by the TPMS lattice structure is added to the air cooling system and the liquid cooling system, so that the defects that the cooling liquid needs to be stored in the heat dissipation system and the size is large are overcome, it can be guaranteed that the temperature of the battery cell is consistent for a long time, and the service life of the battery pack is prolonged; 2 filling the TPMS lattice structure in the air cooling system outside the package and the liquid cooling system inside the package can improve the heat dissipation effect of the device; the TPMS lattice structure can provide a larger contact area, thereby promoting heat exchange; the high specific surface area enables the TPMS lattice structure to effectively absorb and conduct heat in a limited space, and moreover, the
TPMS lattice structure has a high degree of freedom, and its heat dissipation performance 5001 98 can be optimized by adjusting parameters such as cell type, porosity and functional grading; 3 since the phase change material has a relatively high thermal conductivity coefficient and a high specific surface area of the TPMS lattice structure, the contact area between the phase change material and the solid matrix is large, and filling the phase change material in the TPMS lattice structure area of the cooling plate may further ensure that the new energy battery works at an applicable temperature.
BRIEF DESCRIPTION OF THE FIGURES
Fig. 1 is a schematic structural diagram of a liquid cooling system inside the package of a heat dissipation device for a new energy battery pack according to the present invention.
Fig. 2 is a cross-sectional view A of an air cooling system outside the package of a heat dissipation device for a new energy battery pack provided by the present invention.
Fig. 3 is a cross-sectional view B of an air cooling system outside the package of a heat dissipation device for a new energy battery pack provided by the present invention.
Fig. 4 is a sectional view of a longitudinal cooling plate of a heat dissipation device for a new energy battery pack according to the present invention.
Fig. 5 is a cross-sectional view of a transverse cooling plate of a heat dissipation device for a new energy battery pack according to the present invention.
Fig. 6 is a schematic structural diagram of a TPMS lattice structure of an internal phase-change material filling area of a transverse cooling plate and a longitudinal cooling plate of a heat dissipation device for a new energy battery pack provided by the present invention.
Fig. 7 is a schematic diagram of a TPMS lattice structure result of a liquid flow channel area in a transverse cooling plate and a longitudinal cooling plate of a heat dissipation device for a new energy battery pack provided by the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS: LU600198 100, liquid cooling system outside the package; 110, cooling channel; 120, cooling liquid inlet; 130, longitudinal cooling plate; 131, liquid flow channel area of longitudinal cooling plate; 132, phase change material filling area of longitudinal cooling plate; 140, transverse cooling plate; 141, liquid flow channel area of transverse cooling plate; 142, phase change material filling area of transverse cooling plate; 211, liquid channel; 223, air channel skin; 224, liquid channel skin; 300, upper shell; 400, V-shaped plate; 500, battery cell group; 600, rubber pad; 700, lower shell.
DESCRIPTION OF THE INVENTION
In order to better explain the present invention, for ease of understanding, the present invention will be described in detail below with reference to Figures. 1-7.
The present invention provides a heat dissipation device for a new energy battery pack, including a liquid cooling system inside the package 100, an air cooling system outside the package 200, an upper shell 300, a V-shaped plate 400, a battery cell group 500, a rubber pad 600 and a lower shell 700, where the liquid cooling system inside the package 100 includes a cooling channel 110, a cooling liquid inlet 120, a longitudinal cooling plate 130, a transverse cooling plate 140 and a cooling liquid outlet 150, and the o air cooling system outside the package 200 includes a heat exchange shell 210 and a heat exchange core 220
Further, the rubber pad 600 is arranged at the bottom of the lower shell 700, the battery cell group 500, the longitudinal cooling plate 130 and the transverse cooling plate 140 are installed above the rubber pad 600 in the lower shell 700, the cooling channel 110 is formed in the longitudinal cooling plate 130 and the transverse cooling plate 140, the V-shaped plate 400 is arranged on the cooling channel 110, the lower shell 700 is in threaded connection with the upper shell 300, the rubber pad 600 and the V-shaped plate 400 can limit and protect the longitudinal cooling plate 130, the transverse cooling plate 140 and the battery cell group 500, and displacement of the battery cell group 500, the longitudinal cooling plate 130 and the transverse cooling plate 140 is prevented.
Further, the longitudinal cooling plate 130 is internally provided with two areas formed 001 98 by a TPMS lattice structure, one is a longitudinal cooling plate liquid flow channel area 131, is formed by sheet-shaped primaries in the TPMS lattice structure, the other is a phase change material filling area of the longitudinal cooling plate 132, formed by sheet diamond in the TPMS lattice structure, and the phase change material is filled in gaps of the sheet diamond.
Further, the transverse cooling plate 140 is internally provided with two areas formed by a TPMS lattice structure, one is a liquid flow channel area of the transverse cooling plate 141, is formed by sheet-shaped primaries in the TPMS lattice structure, and the other is a phase change material filling area of the transverse cooling plate 142, formed by sheet diamond in the TPMS lattice structure, and the phase change material is filled in gaps of the sheet diamond.
Further, the longitudinal cooling plate 130 and the transverse cooling plate 140 are connected with the cooling channel 110, the cooling channel 110 is connected with the heat exchange shell 210, a heat exchange core 220 is provided in the heat exchange shell 210, and the heat exchange core 220 is obtained by sealing the TPMS lattice structure through the skin.
Further, the heat exchange shell includes a liquid inlet 211, a liquid outlet 212, an air inlet 213, and an air outlet 214. The heat exchange core 220 includes an air channel 221, a liquid channel 222, an air channel skin 223, and a liquid channel skin 224, the cooling liquid passing through the liquid cooling system inside the package 100 enters the air cooling system outside the package 200 through the liquid inlet 211, the cooling liquid entering the air cooling system outside the package 200 is diverted through the liquid channel 222 and flows through the heat exchange core 220, and the cooling liquid flowing through the heat exchange core 220 gathers at the liquid outlet 212 and returns to the liquid cooling system inside the package 100 to achieve cyclic utilization, convection air enters the air cooling system outside the package 200 through the air inlet 213, the air entering the air cooling system outside the package 200 is diverted through the air channel 221 and flows through the heat exchange core 220, and then leaves the air cooling system outside the package 200.
Although the embodiments of the present invention have been shown and described 500: 98 above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations to the present invention, and those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims (6)

1. A heat dissipation device for a new energy battery pack, comprising a liquid cooling system inside the package, an air cooling system outside the package, an upper shell, a V-shaped plate, a battery cell group, a rubber pad and a lower shell, wherein the liquid cooling system inside the package comprises a cooling channel, a cooling liquid inlet, a longitudinal cooling plate, a transverse cooling plate and a cooling liquid outlet, and the air cooling system outside the package comprises a heat exchange shell and a heat exchange core.
2. The heat dissipation device for a new energy battery pack according to claim 1, characterised in that the rubber pad is arranged at the bottom of the lower shell, the battery cell group, the longitudinal cooling plate and the transverse cooling plate are installed above the rubber pad in the lower shell, the cooling channel is formed in the longitudinal cooling plate and the transverse cooling plate, the V-shaped plate is arranged on the cooling channel, the lower shell is in threaded connection with the upper shell, and the rubber pad and the V-shaped plate can limit and protect the longitudinal cooling plate, the transverse cooling plate and the battery cell group to prevent displacement of the battery cell group, the longitudinal cooling plate and the transverse cooling plate.
3. The heat dissipation device for a new energy battery pack according to claim 1, characterised in that two areas formed by the TPMS lattice structure are arranged in the longitudinal cooling plate, one is a liquid flow channel area of the longitudinal cooling plate, is formed by sheet-shaped primaries in the TPMS lattice structure, and the other is a filling area of a longitudinal cooling plate phase change material, is formed by sheet- shaped diamond in the TPMS lattice structure, and the phase change material is filled in gaps of the sheet-shaped diamond.
4. The heat dissipation device for a new energy battery pack according to claim 1600198 characterised in that two areas formed by the TPMS lattice structure are arranged in the transverse cooling plate, one is a liquid flow channel area of the transverse cooling plate, is formed by sheet-shaped primaries in the TPMS lattice structure, and the other is filling area of a transverse cooling plate phase change material, is formed by sheet-shaped diamond in the TPMS lattice structure, and the phase change material is filled in gaps of the sheet-shaped diamond.
5. The heat dissipation device for a new energy battery pack according to claim 1, characterised in that the transverse cooling plate and the longitudinal cooling plate are connected with the cooling channel, the cooling channel is connected with the heat exchange shell, a heat exchange core is arranged in the heat exchange shell, and the heat exchange core is obtained by sealing the TPMS lattice structure through the skin.
6. The heat dissipation device for a new energy battery pack according to claim 1, characterised in that the heat exchange shell comprises a liquid inlet, a liquid outlet, an air inlet and an air outlet, the heat exchange core comprises an air channel, a liquid channel, an air channel skin and a liquid channel skin, the cooling liquid passing through the liquid cooling system inside the package enters the air cooling system outside the package through the liquid inlet, the cooling liquid entering the air cooling system outside the package is diverted through the liquid channel and flows through the heat exchange core, and the cooling liquid flowing through the heat exchange core gathers at the liquid outlet and returns to the liquid cooling system inside the package to achieve cyclic utilization, convection air enters the air cooling system outside the package through the air inlet, the air entering the air cooling system outside the package is diverted through the air channel and flows through the heat exchange core, and then leaves the air cooling system outside the package.
LU600198A 2024-07-26 2025-02-11 Heat dissipation device for new energy battery pack LU600198B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202411015006.6A CN118970274A (en) 2024-07-26 2024-07-26 A new energy battery pack heat dissipation device

Publications (1)

Publication Number Publication Date
LU600198B1 true LU600198B1 (en) 2025-08-11

Family

ID=93391572

Family Applications (1)

Application Number Title Priority Date Filing Date
LU600198A LU600198B1 (en) 2024-07-26 2025-02-11 Heat dissipation device for new energy battery pack

Country Status (2)

Country Link
CN (1) CN118970274A (en)
LU (1) LU600198B1 (en)

Also Published As

Publication number Publication date
CN118970274A (en) 2024-11-15

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Effective date: 20250811