CN117134026A - Liquid cooling heat radiation structure for lithium battery module temperature control system of new energy automobile - Google Patents

Liquid cooling heat radiation structure for lithium battery module temperature control system of new energy automobile Download PDF

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Publication number
CN117134026A
CN117134026A CN202311108767.1A CN202311108767A CN117134026A CN 117134026 A CN117134026 A CN 117134026A CN 202311108767 A CN202311108767 A CN 202311108767A CN 117134026 A CN117134026 A CN 117134026A
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CN
China
Prior art keywords
fiber cloth
control system
temperature control
silica gel
new energy
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202311108767.1A
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Chinese (zh)
Inventor
肖林
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Chengdu Vocational College of Agricultural Science and Technology
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Chengdu Vocational College of Agricultural Science and Technology
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Filing date
Publication date
Application filed by Chengdu Vocational College of Agricultural Science and Technology filed Critical Chengdu Vocational College of Agricultural Science and Technology
Priority to CN202311108767.1A priority Critical patent/CN117134026A/en
Publication of CN117134026A publication Critical patent/CN117134026A/en
Pending legal-status Critical Current

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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
    • H01M10/61—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
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • 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
    • 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
    • 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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  • 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)

Abstract

The application relates to a liquid cooling heat dissipation structure for a lithium battery module temperature control system of a new energy automobile, which comprises a pair of mounting plates and batteries arranged between the mounting plates and distributed in an array, wherein cooling plates are arranged in parallel in a penetrating manner in a gap of the batteries, heat conducting fiber cloth and a plurality of silica gel bags for pressing the heat conducting fiber cloth at the gap of the batteries are arranged on two sides of the cooling plates, long grooves for filling the silica gel bags are arranged in the cooling plates, side holes communicated with the silica gel bags are sequentially formed in the inner walls of the long grooves, and sliding blocks driven by threaded rods are further arranged in the long grooves in a sliding manner. This heat radiation structure sets up the silica gel bag that has the inflation function, cooperates heat conduction fiber cloth for contact with the battery lateral wall is closely laminated more during the heat transfer, makes area of contact bigger through pressure, improves the heat transfer effect, and has set up the slider and has made the silica gel bag fill one by one, prevents to extrude heat conduction fiber cloth, influences the unreels, laminating battery lateral wall as far as, improves the heat transfer effect of liquid cooling heat radiation structure.

Description

Liquid cooling heat radiation structure for lithium battery module temperature control system of new energy automobile
Technical Field
The application belongs to the technical field of new energy batteries, and particularly relates to a liquid cooling heat dissipation structure for a temperature control system of a lithium battery module of a new energy automobile.
Background
In order to reduce energy consumption, a temperature control system is often arranged for absorbing heat of a battery and a motor, so that the battery motor is cooled, heat recovery can be performed, a battery pack is generally distributed in an automobile chassis, and a mode of supplying power by a plurality of split batteries is adopted.
Because the components of a whole that can function independently battery is numerous, and mostly cylindrical, current liquid cooling passageway adopts silica gel pad and battery lateral wall contact to reach bigger area of contact, because silica gel pad is the preforming, be difficult to accomplish when the assembly with all battery lateral walls in close contact, cause local heat exchange effect not good easily.
Disclosure of Invention
The application aims to solve the problems and provide a liquid cooling heat dissipation structure for a temperature control system of a lithium battery module of a new energy automobile.
The application realizes the above purpose through the following technical scheme:
the utility model provides a new energy automobile lithium cell module liquid cooling heat radiation structure for temperature control system, includes a pair of mounting panel and sets up the battery that is array distribution between the mounting panel, the clearance parallel interlude of battery is provided with the cooling fin, and the both sides of cooling fin are provided with heat conduction fiber cloth and a plurality of silica gel bag that is used for pressing together heat conduction fiber cloth at the battery clearance, the inside elongated slot that is used for making the silica gel bag to pack that is provided with of cooling fin, wherein, the elongated slot inner wall has set gradually the side opening with the silica gel bag intercommunication, still slide in the elongated slot and be provided with by threaded rod driven slider.
As a further optimization scheme of the application, S-shaped cooling channels are arranged in the cooling fin, the cooling channels are distributed on two sides of the long groove, and the S-shaped cooling channels are arranged to enable cooling liquid to circulate in the cooling channels in a meandering manner, so that the heat exchange time is prolonged, meanwhile, the liquid is increased to form vortex, and full heat exchange is facilitated.
As a further optimization scheme of the application, two ends of the cooling channel are respectively provided with a connecting pipe, the connecting pipes are commonly connected with a cooling main pipe, the cooling main pipe is used for summarizing each connecting pipe and the cooling fins, and the two cooling main pipes respectively serve as a liquid inlet pipe and a return pipe.
As a further optimization scheme of the application, the long groove is attached to the shape of the sliding block, the section of the long groove is a circular groove with a stripe limit, the threaded rod is driven by a motor and used for enabling the silica gel capsules to be filled one by one, the sliding block is arranged to block the silica gel capsules, and when the silica gel capsules are filled, the sliding block slides to fill the silica gel capsules one by one, so that the problem that the heat-conducting fiber cloth is difficult to unreel due to extrusion is avoided.
As a further optimization scheme of the application, one end of the long groove is provided with the air charging pipe which is used for charging air into the silica gel capsule through the long groove, the air charging pipe is used for charging air into the long groove through the air charging structure, and then the silica gel capsule is charged through the side hole, so that the silica gel capsule is inflated, the heat conducting fiber cloth is extruded, wherein the air leakage phenomenon exists among the sliding block, the long groove, the sliding block and the threaded rod, but the air leakage is smaller, and the air pressure for expanding the silica gel capsule is not provided.
As a further optimization scheme of the application, one end of the long groove is provided with the epoxy resin adding device, and the epoxy resin adding device is used for filling liquid epoxy resin and curing agent mixture into the silicon capsule through the long groove, compared with inflation, the liquid epoxy resin filling is more stable and longer, the liquid epoxy resin after curing and forming has higher hardness, and compared with the inflated silicon capsule, the liquid epoxy resin filling has better stability.
As a further optimization scheme of the application, the surface of the mounting plate is provided with the unreeling roller, the unreeling roller is used for unreeling the heat-conducting fiber cloth when the heat-conducting fiber cloth is attached to the battery, the unreeling roller is arranged to enable the heat-conducting fiber cloth to be attached to the side wall of the battery in a sufficient length, and the heat-conducting fiber cloth is automatically unreeled when the silica gel bags are gradually propped up.
As a further optimization scheme of the application, one end of the heat-conducting fiber cloth far away from the unreeling roller is provided with the fixing column, the fixing column is detachably arranged between the two mounting plates, one end of the heat-conducting fiber cloth is fixed through the fixing column, and the heat-conducting fiber cloth can be overhauled and disassembled conveniently through the detachment.
The application has the beneficial effects that:
according to the application, the silica gel bag with the expansion function is arranged and matched with the heat-conducting fiber cloth, so that the contact with the side wall of the battery is more compact in heat exchange, the contact area is larger through pressure, the heat exchange effect is improved, the silica gel bag is filled one by one through the arrangement of the sliding blocks, the heat-conducting fiber cloth is prevented from being extruded, unreeling is influenced, the side wall of the battery is attached as far as possible, and the heat exchange effect of the liquid cooling heat dissipation structure is improved.
Drawings
FIG. 1 is a top cross-sectional view of the present application;
FIG. 2 is a front view of the present application;
FIG. 3 is a side cross-sectional view of the present application;
FIG. 4 is a cross-sectional view of a cooling fin of the present application;
FIG. 5 is an enlarged view of the portion A of FIG. 1 according to the present application;
FIG. 6 is an enlarged view of the portion B of FIG. 4 in accordance with the present application;
in the figure: 1. a mounting plate; 2. a battery; 3. a cooling assembly; 31. a cooling fin; 32. a cooling header pipe; 33. a connecting pipe; 34. a cooling channel; 35. a long groove; 36. a threaded rod; 37. a motor; 38. a slide block; 39. an inflation tube; 310. a side hole; 4. a silicon capsule; 5. a thermally conductive fibrous cloth; 6. fixing the column; 7. and (5) unreeling the roller.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the application only and is not to be construed as limiting the scope of the application, as various insubstantial modifications and adaptations of the application to those skilled in the art can be made in light of the foregoing disclosure.
Example 1
As shown in fig. 1-6, a liquid cooling heat dissipation structure for a temperature control system of a lithium battery module of a new energy automobile comprises a pair of mounting plates 1, batteries 2 arranged between the mounting plates 1 and distributed in an array, and further comprises a cooling assembly 3, wherein the cooling assembly 3 comprises cooling fins 31 which are arranged in a gap of the batteries 2 in a parallel penetrating way, two sides of the cooling fins 31 are provided with heat conducting fiber cloth 5 and a plurality of silica gel bags 4 used for pressing the heat conducting fiber cloth 5 in the gap of the batteries 2, long grooves 35 used for filling the silica gel bags 4 are arranged in the cooling fins 31, side holes 310 communicated with the silica gel bags 4 are sequentially formed in the inner walls of the long grooves 35, and sliding blocks 38 driven by threaded rods 36 are further arranged in the long grooves 35 in a sliding way.
The cooling fin 31 is internally provided with S-shaped cooling channels 34, the cooling channels 34 are distributed on two sides of the long groove 35, and the S-shaped cooling channels 34 are arranged to enable cooling liquid to circulate in the cooling channels 34 in a meandering manner, so that the heat exchange time is prolonged, meanwhile, the vortex of the liquid is increased, and the full heat exchange is facilitated.
The two ends of the cooling channel 34 are respectively provided with a connecting pipe 33, the connecting pipes 33 are commonly connected with a cooling header pipe 32, the cooling header pipe 32 is used for summarizing the connecting pipes 33 and the cooling fins 31, and the two cooling header pipes 32 respectively serve as a liquid inlet pipe and a return pipe.
The long groove 35 is attached to the shape of the sliding block 38, the section of the long groove is a circular groove with a stripe limit, the threaded rod 36 is driven by the motor 37 and used for enabling the silica gel capsules 4 to be filled one by one, the sliding block 38 is arranged to block the silica gel capsules 4, when the silica gel capsules 4 are filled, the side holes 310 are conducted one by one through sliding of the sliding block 38, the silica gel capsules 4 are enabled to be filled one by one, and the fact that the silica gel capsules 4 are difficult to unreel due to the fact that the heat-conducting fiber cloth 5 is extruded simultaneously is prevented.
One end of the long groove 35 is provided with an inflation tube 39 for inflating the silica gel capsule 4 through the long groove 35, the inflation tube 39 is inflated by an air pump, the inflation tube 39 is inflated by the air pump, the long groove 35 is inflated by arranging an inflation structure, the silica gel capsule 4 is inflated through the side holes 310, the silica gel capsule 4 is inflated, the heat-conducting fiber cloth 5 is extruded, an air leakage phenomenon exists between the sliding block 38 and the long groove 35, and between the sliding block 38 and the threaded rod 36, but the air leakage is small, the air leakage is not provided with air pressure for expanding the silica gel capsule 4, and the influence on the process of expanding the silica gel capsule 4 one by one is small.
The surface of mounting panel 1 is provided with unreels roller 7, unreels roller 7 and is used for unreeling heat conduction fiber cloth 5 when heat conduction fiber cloth 5 laminating battery 2, makes heat conduction fiber cloth 5 have sufficient length and the lateral wall laminating of battery 2 through setting up unreel roller 7, automatic unreels heat conduction fiber cloth 5 when silica gel bag 5 props up one by one.
The one end that heat conduction fiber cloth 5 kept away from unreeling roller 7 is provided with fixed column 6, and fixed column 6 dismantlement formula sets up between two mounting panels 1, fixes the one end of heat conduction fiber cloth 5 through fixed column 6, can conveniently overhaul the dismouting through the dismantlement.
Example 2
Unlike embodiment 1, in the scheme of expanding the silicone capsule 4, the embodiment adopts a liquid epoxy resin filling mode, one end of the long groove 35 is provided with an epoxy resin adding device for filling the mixture of the liquid epoxy resin and the curing agent into the silicone capsule 4 through the long groove 35, compared with inflation, the filling liquid epoxy resin is more stable and longer, the liquid epoxy resin has higher hardness after being cured and molded, and compared with the inflation silicone capsule 4, the epoxy resin filling device has better stability and longer service life.
The theory of operation, during the assembly, aerify or fill the mixture of liquid epoxy and curing agent to elongated slot 35 in, simultaneously motor 37 drives slider 38 and slides, spill side opening 310 one by one, silica gel bag 4 that corresponds with side opening 310 is propped up, drive heat conduction fiber cloth 5 laminating battery 2, laminating silicon capsule 4 and cooling fin 31 simultaneously, compared with the heat conduction that uses the silica gel pad alone, better heat conduction effect has, heat conduction fiber cloth 5 has unreeling roller 7 to unreel when laminating, then silicon capsule 4 struts one by one, until heat conduction fiber cloth 5 compresses tightly on battery 2 surface completely.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.

Claims (8)

1. The utility model provides a new energy automobile lithium cell module liquid cooling heat radiation structure for temperature control system, is array distribution's battery (2) including a pair of mounting panel (1) and setting between mounting panel (1), its characterized in that: the battery pack is characterized in that cooling fins (31) are arranged in parallel in the gaps of the battery (2), heat-conducting fiber cloth (5) are arranged on two sides of the cooling fins (31), and a plurality of silicon capsules (4) used for pressing the heat-conducting fiber cloth (5) in the gaps of the battery (2), long grooves (35) used for enabling the silicon capsules (4) to be filled are formed in the cooling fins (31), side holes (310) communicated with the silicon capsules (4) are sequentially formed in the inner walls of the long grooves (35), and sliding blocks (38) driven by threaded rods (36) are further arranged in the long grooves (35) in a sliding mode.
2. The liquid cooling heat radiation structure for a lithium battery module temperature control system of a new energy automobile according to claim 1, wherein: the inside of the cooling fin (31) is provided with S-shaped cooling channels (34), and the cooling channels (34) are distributed on two sides of the long groove (35).
3. The liquid cooling heat radiation structure for a lithium battery module temperature control system of a new energy automobile according to claim 2, wherein: and connecting pipes (33) are respectively arranged at two ends of the cooling channel (34), and the connecting pipes (33) are commonly connected with a cooling header pipe (32).
4. The liquid cooling heat radiation structure for a lithium battery module temperature control system of a new energy automobile according to claim 1, wherein: the long groove (35) is attached to the sliding block (38), the section of the long groove is a circular groove with a stripe limit, and the threaded rod (36) is driven by the motor (37) and used for enabling the silicon capsules (4) to be filled one by one.
5. The liquid cooling heat radiation structure for a lithium battery module temperature control system of a new energy automobile according to claim 4, wherein: one end of the long groove (35) is provided with an inflation tube (39) for inflating the silica gel bag (4) through the long groove (35), and the inflation tube (39) is inflated by an air pump.
6. The liquid cooling heat radiation structure for a lithium battery module temperature control system of a new energy automobile according to claim 4, wherein: one end of the long groove (35) is provided with an epoxy resin adding device which is used for filling liquid epoxy resin and curing agent mixture into the silica gel bag (4) through the long groove (35).
7. The liquid cooling heat radiation structure for a lithium battery module temperature control system of a new energy automobile according to claim 1, wherein: the surface of mounting panel (1) is provided with unreels roller (7), unreel roller (7) are used for unreeling heat conduction fiber cloth (5) when heat conduction fiber cloth (5) laminating battery (2).
8. The liquid cooling heat radiation structure for a lithium battery module temperature control system of a new energy automobile according to claim 7, wherein: one end of the heat conduction fiber cloth (5) far away from the unreeling roller (7) is provided with a fixed column (6), and the fixed column (6) is detachably arranged between the two mounting plates (1).
CN202311108767.1A 2023-08-31 2023-08-31 Liquid cooling heat radiation structure for lithium battery module temperature control system of new energy automobile Pending CN117134026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311108767.1A CN117134026A (en) 2023-08-31 2023-08-31 Liquid cooling heat radiation structure for lithium battery module temperature control system of new energy automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311108767.1A CN117134026A (en) 2023-08-31 2023-08-31 Liquid cooling heat radiation structure for lithium battery module temperature control system of new energy automobile

Publications (1)

Publication Number Publication Date
CN117134026A true CN117134026A (en) 2023-11-28

Family

ID=88859621

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311108767.1A Pending CN117134026A (en) 2023-08-31 2023-08-31 Liquid cooling heat radiation structure for lithium battery module temperature control system of new energy automobile

Country Status (1)

Country Link
CN (1) CN117134026A (en)

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