WO2022121105A1 - 圆柱电池模组 - Google Patents

圆柱电池模组 Download PDF

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Publication number
WO2022121105A1
WO2022121105A1 PCT/CN2021/074987 CN2021074987W WO2022121105A1 WO 2022121105 A1 WO2022121105 A1 WO 2022121105A1 CN 2021074987 W CN2021074987 W CN 2021074987W WO 2022121105 A1 WO2022121105 A1 WO 2022121105A1
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WO
WIPO (PCT)
Prior art keywords
cylindrical battery
battery module
cylindrical
cooling plate
module according
Prior art date
Application number
PCT/CN2021/074987
Other languages
English (en)
French (fr)
Inventor
刘俊鹏
徐博豪
江吉兵
Original Assignee
湖北亿纬动力有限公司
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 湖北亿纬动力有限公司 filed Critical 湖北亿纬动力有限公司
Priority to US18/029,334 priority Critical patent/US20230361406A1/en
Priority to EP21901823.1A priority patent/EP4207451A1/en
Publication of WO2022121105A1 publication Critical patent/WO2022121105A1/zh

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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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch 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
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/6554—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
    • 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
    • H01M10/6567—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
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • 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

Definitions

  • the present application relates to the technical field of power batteries, for example, to a cylindrical battery module.
  • a cylindrical battery module is composed of a plurality of cylindrical battery cells in a multi-parallel and multi-series manner.
  • the cylindrical battery module includes a skeleton, and a through hole is opened on the skeleton.
  • the cylindrical battery core is installed on the through hole, and its volume is relatively It is large, which is not conducive to the spatial arrangement of the battery system and affects the energy density of the battery system; and the fixing frame in the existing structure is relatively complicated, which further increases the volume of the cylindrical battery module, and is inconvenient to assemble, which increases the production cost;
  • the cooling device of the existing structure has a large structure, which will further affect the cylindrical battery module. Volume; due to the large number of cells, the problems of cell fixing, cell protection and cell cooling have increased the difficulty of solving.
  • the present application provides a cylindrical battery module, which can improve the space utilization rate, increase the energy density of the cylindrical battery module, and improve the cooling effect.
  • An embodiment provides a cylindrical battery module, including:
  • each row of cell assemblies includes a plurality of cylindrical cells arranged along the first direction;
  • Brackets are arranged on both sides of at least two rows of battery core assemblies along the second direction, each bracket is provided with a plurality of fixing holes, and each cylindrical battery core is inserted into the corresponding two fixing holes on the two brackets ;
  • the cooling plate is sandwiched between two adjacent rows of battery core assemblies, the cooling plate is provided with a plurality of arc-shaped grooves at intervals along the first direction, and a first plug-in portion is formed between the two adjacent arc-shaped grooves.
  • the arc-shaped slot is matched with a plurality of cylindrical cells of a row of cell assemblies, and the first plug portion is inserted into a gap between two adjacent cylindrical cells of a row of cell assemblies.
  • FIG. 1 is an exploded view of a cylindrical battery module provided by an embodiment of the present application.
  • Fig. 2 is the enlarged view of A place of Fig. 1;
  • Fig. 3 is the enlarged view at B of Fig. 1;
  • FIG. 4 is a schematic structural diagram of a second structural adhesive layer disposed on a bracket provided by an embodiment of the present application
  • Fig. 5 is the enlarged view at C of Fig. 1;
  • FIG. 6 is a schematic structural diagram of a cylindrical battery module provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a water cooling unit provided by an embodiment of the present application.
  • Fig. 8 is an enlarged view at D of Fig. 7;
  • FIG. 9 is a side view of a water cooling unit provided by an embodiment of the present application.
  • Fig. 10 is the enlarged view of the E place of Fig. 9;
  • FIG. 11 is a schematic diagram of the internal structure of a water chamber provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a keel provided by an embodiment of the present application.
  • FIG. 13 is an enlarged view of F in FIG. 12 .
  • 2-cooling plate 21-arc groove; 22-first plug-in part; 23-interface; 241-first water pipe; 242-second water pipe; 25-pipe joint assembly; 251-first water inlet pipe joint; 252 -First outlet pipe joint; 253-Second water inlet pipe joint; 254-Second water outlet pipe joint; 26-Water chamber; 261-First sub-chamber; Sub-chamber; 265-first partition; 266-second partition; 267-first subsection; 268-second subsection; 271-water inlet; 272-water outlet;
  • connection should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements.
  • connection may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • This embodiment provides a cylindrical battery module, which includes at least two rows of cell assemblies 100, two brackets 3 and a cooling plate 2; as shown in FIG. 1-FIG. 3, each row of cell assemblies 100 includes A plurality of cylindrical cells 101 arranged in the direction; two brackets 3 are arranged on both sides of the cell assembly 100 along the second direction, a plurality of fixing holes 31 are provided on the bracket 3, and each cylindrical cell 101 is simultaneously inserted into two The corresponding fixing holes 31 on the brackets 3; the cooling plate 2 is sandwiched between two adjacent rows of cell assemblies 100, and the cooling plate 2 is provided with a plurality of arc-shaped grooves 21 at intervals along the first direction, and two adjacent arc-shaped grooves 21 are arranged at intervals along the first direction.
  • a first plug portion 22 is formed between the shaped grooves 21 , the arc-shaped groove 21 is matched with the cylindrical cells 101 of a row of cell assemblies 100 , and the first plug portion 22 is inserted into two adjacent cells of the same row of cell assemblies 100 . gaps between the cylindrical cells 101 .
  • the two brackets 3 are arranged opposite to the two sides of the cylindrical battery 101, the fixing holes 31 provided on the two brackets 3 correspond to each other, and the cylindrical battery 101 is inserted into the two fixing holes 31, so as to realize the connection of the cylindrical battery 101.
  • Fixing; the number of brackets 3 can also be more than two, wherein, two or more brackets also include two brackets.
  • the relationship between the second direction and the first direction is It is not limited; when the cylindrical cells 101 are not arranged neatly, the fixing holes 31 on the bracket 3 need to be adaptively adjusted according to the arrangement of the cylindrical cells, so as to facilitate insertion and fixation; optionally, as shown in FIG.
  • the first The two directions are perpendicular to the first direction, wherein the first direction is the x-direction, the second direction is the y-direction, the cylindrical cells 101 are arranged neatly, the brackets 3 are vertically arranged on both sides of the cylindrical cells 101 along the second direction, and the brackets
  • the fixing holes 31 are arranged neatly on the 3, which is convenient for processing the fixing holes 31 and easy to assemble; the bracket 3 is arranged to fix a plurality of cylindrical cells 101 on the cell assembly 100, and the cylindrical cells 101 are connected to the bracket 3 by plugging , the structure of the bracket 3 is simplified, and the installation is convenient.
  • the cooling plate 2 is sandwiched between two adjacent rows of cell assemblies 100, which improves the cooling effect of each row of cell assemblies 100; the arrangement of the arc groove 21 and the first plug portion 22 increases the cooling plate on the one hand. 2.
  • the contact area with the cell assembly 100 improves the cooling effect.
  • the cell assembly 100 can cooperate with the arc groove 21 and the first plug portion 22 without increasing the volume of the cylindrical battery module.
  • it also plays a limiting role on the cylindrical battery 101, which improves the stability of the structure; the cooperation of the bracket 3 and the cooling plate 2 simplifies the structure of the cylindrical battery module, reduces the overall weight, and improves the battery energy density. .
  • the gap can be understood as follows: firstly, when the cylindrical cells 101 abut each other, the tops of the two adjacent cylindrical cells 101 form an arc. The second is that the two cylindrical cells 101 are not abutted to form a gap, and accordingly, the shape of the first plug-in portion 22 can be set according to different gaps.
  • a cooling plate 2 is arranged between two adjacent rows of cell assemblies 100 , that is, the number of cooling plates 2 is one less than the number of rows of the cell assemblies 100 , which improves the efficiency of each row.
  • the temperature uniformity of the discharge core assembly 100 improves the service life of the cylindrical battery module; the cooling plates 2 can be arranged in parallel to improve the cooling uniformity between different cooling plates 2;
  • the battery cells 101 are arranged tangentially, which increases the contact area between the arc-shaped groove 21 and the cylindrical battery cells 101 , improves the cooling effect, and improves the space utilization rate.
  • the cooling plate is plate-shaped, and the water inlet port and the water outlet port communicating with the external cooling system are arranged on two sides respectively.
  • the water inlet port and the water outlet port are respectively connected to the pipe joint through the water chamber, and the number of water chambers increases, which increases the risk of liquid leakage and increases the production cost.
  • the cooling plate 2 is annular, the water inlet end 271 and the water outlet end 272 of the cooling plate 2 are arranged adjacent to each other, and the water inlet end 271 and the water outlet end 272 are arranged at In the middle of the cooling plate 2, the water inlet end 271 and the water outlet end 272 of the cooling plate 2 are arranged in a ring shape in the middle of the cooling plate 2, which saves space and improves the space utilization rate of the battery module.
  • the cooling plate 2 is provided with a pipe joint assembly 25 and a water chamber 26 (refer to FIG. 8 and FIG. 9 ).
  • the pipe joint assembly 25 includes at least two pipe joints, each of which is respectively connected to the water inlet.
  • the water inlet port of the end 271 is communicated with the water outlet port arranged on the water outlet end 272; the water chamber 26 is connected to the water inlet end 271, the water outlet end 272 and the pipe joint assembly 25, and the interior of the water chamber 26 is divided into at least two sub-chambers, each sub-chamber Connect with the water inlet port or the water outlet port respectively.
  • the water inlet end 271 and the water outlet end 272 of the annular cooling plate 2 are connected to the same water chamber 26, which reduces the number of the water chambers 26, simplifies the structure, reduces the assembly of the water chamber 26 and the cooling plate 2, and reduces the cost ; Reduce the connection between the water chamber 26 and the cooling plate 2, reduce the risk of liquid leakage, and improve the reliability of use; Reduce the number of water chambers 26, save space;
  • the water chamber 26 is arranged in the middle position of the cooling plate 2, When the water cooling unit is installed on the battery module, when adjacent rows of cell assemblies 100 are disposed on the cooling plate 2 , the water chamber 26 may be disposed between the two cylindrical cells 101 of the adjacent row of cell assemblies 100 .
  • the water chambers 26 are connected to the cooling plate 2 by welding, so as to improve the connection strength and reduce the number of the water chambers 26, which can reduce the welding operation and thus reduce the cost.
  • the ring shape may be a racetrack or a waist circle.
  • the cooling plate 2 , the pipe joint assembly 25 and the water chamber 26 form a water cooling unit, and the water cooling unit can also be independently applied to other battery modules.
  • the cooling plate 2 includes at least two water pipes, and each water pipe is arranged side by side along the length direction of the cylindrical cell 101 to increase the width of the cooling plate 2; The circulation effect, and then improve the cooling effect.
  • the water chamber 26 is divided into at least four sub-chambers, each of the sub-chambers in a part of the sub-chambers is communicated with the water inlet port of each water pipe respectively, and each sub-chamber of the other sub-chambers is respectively connected with the water outlet port of each water pipe. Connected.
  • the water chamber 26 is divided into four sub-chambers, and the two water inlet ports and the two water outlet ports are respectively connected with the four sub-chambers one-to-one; or the water chamber 26 can also be divided into eight sub-chambers. There are four sub-chambers, and the eight sub-chambers are divided into four groups. Each sub-chamber is connected with two water inlet ports and two water outlet ports in one-to-one correspondence. The water inlet port and the water outlet port of each water pipe only need to be connected with different sub-chambers, which is not limited.
  • the length of the cooling plate 2 may also increase at the same time.
  • the cooling plate 2 will cause unbalanced cooling of different cylindrical cells 101 .
  • the water inlet port of each water pipe and the water outlet port of the adjacent water pipe are alternately arranged at the same end of the cooling plate 2, so that the cooling water in the two adjacent water pipes circulates in opposite directions, and the same One cylindrical cell 101 may be simultaneously cooled by the head of one water pipe and the tail of another water pipe, thereby improving the cooling balance of different cylindrical cells 101 and reducing the temperature difference between different cylindrical cells 101 .
  • the water chamber 26 includes two row sub-chambers, each row sub-chamber is communicated with the water inlet end 271 and the water outlet end 272 respectively; The first end of each water pipe on one side of the corresponding column sub-chamber is communicated with each other, and each sub-chamber on the other column sub-chamber is respectively communicated with the second end of each water pipe.
  • the water outlet is connected.
  • the water chamber 26 includes a first partition plate 265 and a second partition plate 266.
  • the first partition plate 265 divides the water chamber into two columns of large sub-chambers, and the second partition plate 266 divides each column of large sub-chambers.
  • the large sub-chamber is divided into two sub-chambers.
  • a plurality of second partitions 266 may be arranged on the water chamber 26 to divide each large sub-chamber into a plurality of sub-chambers.
  • the cooling plate 2 includes a first water pipe 241 and a second water pipe 242 .
  • the water outlet end 272 and the water inlet end 271 of the first water pipe 241 are respectively connected with a first outlet
  • the water pipe joint 252 and the first water inlet pipe joint 251, the water outlet end 272 and the water inlet end 271 of the second water pipe 242 are respectively connected with the second water outlet pipe joint 254 and the second water inlet pipe joint 253, and the water chamber 26 is divided into a first sub-chamber 261 , the second sub-chamber 262 , the third sub-chamber 263 and the fourth sub-chamber 264 .
  • the first sub-chamber 261 and the third sub-chamber 263 are arranged near the first end of each water pipe, the second sub-chamber 262 and the fourth sub-chamber 264 are arranged near the second end of each water pipe; the first sub-chamber 261 is respectively connected with the first water outlet pipe
  • the joint 252 is in communication with the water outlet of the first water pipe 241;
  • the second sub-chamber 262 is in communication with the first water inlet pipe joint 251 and the water inlet port of the first water pipe 241 respectively;
  • the third sub-chamber 263 is respectively connected with the second water inlet pipe joint 253 and the second water inlet pipe
  • the water inlet port of the water pipe 242 is connected;
  • the fourth sub-chamber 264 is respectively connected with the second water outlet pipe joint 254 and the water outlet port of the second water pipe 242;
  • the circulating flow in the opposite direction improves the cooling effect of the cylindrical battery cell 101 .
  • the water chamber 26 includes a liquid inlet communicated with the water pipe joint and a liquid outlet communicated with the cooling plate 2, the inner diameter of the liquid inlet is larger than the inner diameter of the liquid outlet, and the cooling liquid flows from the external cooling system to the cooling plate. 2, the water chamber 26 plays a buffering role to reduce the impact force of the cooling liquid on the cooling plate 2.
  • the water chamber 26 includes a first subsection 267 and a second subsection 268 .
  • the first subsection 267 is provided with a liquid inlet
  • the second subsection 268 is provided with a liquid inlet.
  • the inner volume of the first subsection 267 is larger than the inner volume of the second subsection 268, and the first subsection 267 and the second subsection 268 can be connected by an inclined plate; optionally, the first subsection 267 and the second sub-section 268 can also be connected by a circular arc plate, and the circular arc plate is matched with the cylindrical cell 101, thereby improving the space utilization; Not limited.
  • the cooling plate 2 is provided with arc-shaped grooves for matching with the cylindrical battery cells 101 , which reduces the space occupied by the cooling plate 2 and improves the space utilization rate of the battery module.
  • the arc-shaped grooves 21 are alternately arranged on both sides of the cooling plate 2, and the arc-shaped grooves 21 on both sides of the cooling plate 2 are respectively matched with the cylindrical cells 101 of the two adjacent rows of cell assemblies 100; the cooling plate The cross-section of the Using the structure of the cooling plate 2, the thickness of the cooling plate 2 is reduced, and the volume of the battery module is reduced; under the condition that the volume of the cylindrical battery module is constant, the space utilization rate of the cylindrical battery cell 101 is improved, and further Improves the energy density of cylindrical battery modules.
  • the contact arc between the cylindrical cell 101 and the arc-shaped slot 21 is 55°-65°, and the contact arc of the arc-shaped slot 21 is 55°-65°. If the arc is too large, the space utilization rate in the first direction is reduced, and it is also avoided that the contact arc is too small and the space utilization rate in the arrangement direction of the cell components is reduced.
  • the arc of contact is 60°.
  • the cooling plate 2 of insulating material is selected. It can also improve the reliability of use.
  • the cooling plate 2 is provided with an insulating layer, thereby further improving the insulating performance of the cooling plate 2 and effectively reducing the risk of electric leakage.
  • an insulating paint layer may also be provided on the surface of the cooling plate 2 to avoid conducting electricity with the cooling plate 2 when the cylindrical battery core 101 leaks, thereby improving safety; in one embodiment, the insulating paint layer is also A third structural adhesive layer is provided to bond the cooling plate 2 and the cylindrical battery core 101 to improve the connection strength.
  • the bracket 3 can be made of plastic material, which can not only meet the strength requirements, but also reduce the weight and improve the energy density of the cylindrical battery module.
  • the filling structure may be a sealant structure, the cylindrical cells 101 are filled by applying sealant, and the cylindrical cells 101 are filled by forming a sealant structure.
  • the length of the keel 1 is adapted to the length of the cylindrical cell 101 , which increases the contact area and improves the installation stability;
  • the matching circular arc groove 13, the circular arc groove 13 and the outer circumference of the cylindrical battery core 101 are attached to increase the contact area, improve the installation stability, and at the same time reduce the volume of the keel 1, thereby reducing the cylindrical battery core 101.
  • the keel 1 is set into a hollow structure, which reduces the weight of the keel 1, thereby reducing the weight of the cylindrical battery module;
  • the weight-reducing hole 11 may be a square hole or a circular hole, etc., and may be a through hole or a blind hole, which is specifically set according to actual needs.
  • the first structural adhesive layer can be formed by gluing on the surface of the keel 1, and then the keel 1 can be installed; Glue on the hollow groove, and then bond with the cylindrical cell 101, the hollow groove can not only support the keel 1, avoid the deformation of the keel 1, but also provide a glue space for the first structural glue layer, which is convenient for glueing. Positioning and assembly of keel 1.
  • both ends of the keel 1 along the length direction can be bonded to the bracket 3 to improve the structural strength;
  • Ground the bracket 3 is provided with a slot, and the clip is snapped on the slot, so that the keel 1 and the bracket 3 are connected to form a detachable connection through the clip, which is convenient for disassembly and assembly of the structure;
  • Each end of the keel 1 can be provided with two buckles 12, and the clamping directions of the two buckles 12 are opposite to avoid loosening between the buckles 12 and the card grooves during the movement in one direction, and further improve the keel 1 and the bracket. 3 connection reliability.
  • the cylindrical battery module further includes a cover plate 4 , and the cover plate 4 is disposed at the end of the cell assembly 100 along the third direction to prevent the external structure from causing impact damage to the cell assembly 100 .
  • the cover plate 4 can be adaptively set according to the specific arrangement structure of the cell assemblies 100 . In this embodiment, as shown in FIGS. 1 and 6 , the cell assemblies 100 are neatly arranged, the third direction is the z direction, and the third The orientation is perpendicular to the first and second orientations for ease of assembly.
  • the cell assembly 100 includes a first row of cell assemblies 100 disposed close to the cover plate 4 .
  • the cover A plurality of grooves 41 are arranged at intervals on the board 4, and a second plug portion 42 is formed between two adjacent grooves 41.
  • the groove 41 is matched with the cylindrical cell 101, and the second plug portion 42 is inserted into the adjacent two gaps between the cylindrical cells 101 .
  • the second plug portion 42 and the groove 41 on the cover plate 4 are matched with the cylindrical battery core 101.
  • the second plug portion 42 and the groove 41 can replace the keel 1 or the sealant structure to play a filling role, and are also used for cylindrical batteries.
  • the cylindrical battery module includes two cover plates 4 arranged on the upper and lower ends of the multi-row cell assemblies 100 along the third direction, the cell assemblies 100 in the uppermost row and the cell assemblies 100 in the lowermost row.
  • the cell assembly 100 is limited and reinforced by the cover plate 4.
  • the cell assembly 100 arranged in the middle row can be fixed by the keel 1 or the sealant structure.
  • the upper and lower cover plates 4 can also lift the cell assembly 100. to protective effect.
  • the cell assembly 100 includes a first row of cell assemblies 100 disposed close to the cover plate 4 , and a filling structure such as a keel 1 or
  • the cover plate 4 is a flat plate; a keel 1 or a sealant structure is arranged between each row of cell assemblies 100, so that each row of cell assemblies 100 has the same structure, and the cover plate 4 has a simple structure and is convenient for production. Reduced costs.
  • the cover plate 4 can be made of plastic material, which can not only meet the strength requirements, but also reduce the weight and improve the energy density of the cylindrical battery module.
  • the cylindrical battery module includes at least three rows of cell assemblies 100, and the cooling plate 2 includes a first cooling plate and a second cooling plate.
  • the first cooling plate and the second cooling plate are annular cooling plates. 2; the first row of cell assemblies 100 is arranged between the cover plate 4 and the first cooling plate, and the contact area between the first cooling plate and the first row of cell assemblies 100 is the first contact area S1; Two rows of cell assemblies 100 are disposed between the first cooling plate and the second cooling plate, and the contact area between the first cooling plate and the second row of cell assemblies 100 is the second contact area S2 , where S1 > S2 .
  • the second row of cell assemblies 100 Since the second row of cell assemblies 100 is simultaneously cooled by the double-sided cooling plate 2, its cooling effect is stronger than that of the first row of cell assemblies 100 cooled only by the single-sided cooling plate 2.
  • the contact area between the two-row cell assemblies 100 and the cooling plate 2 improves the cooling uniformity.
  • a heat insulating member is provided on the first cooling plate near the arc-shaped grooves 21 of the second row of cell assemblies 100 to change the contact between the second row of cell assemblies 100 and the two adjacent arc-shaped grooves 21 angle, the contact area between the second row of cell assemblies 100 and the cooling plate 2 is reduced, the cooling effect is reduced, and the cooling uniformity between the second row of cell assemblies 100 and the first row of cell assemblies 100 is improved.
  • the heat insulating member may be a plastic insulating sheet bonded to the arc-shaped groove 21 . How to set the size of the heat insulating member can be determined according to thermal simulation calculation, etc.
  • the heat insulating member can also be a heat insulating coating, which will not be repeated here.
  • the cylindrical cell 101 is bonded or detachably connected to the fixing hole 31 , which improves the connection strength between the cell assembly 100 and the bracket 3 .
  • a glue groove 311 is opened on the side of the fixing hole 31 close to the cylindrical cell 101 , and a second structural glue layer 312 is arranged on the glue groove 311 .
  • 101 is connected to the fixing hole 31 through the second structural adhesive layer 312, thereby improving the connection strength of the cylindrical cell 101 and the bracket 3;
  • the second structural adhesive layer 312, and then the cylindrical cell 101 is installed on the fixing hole 31, and then the second structural adhesive layer 312 is cured naturally.
  • the second structural adhesive layer 312 can be disposed on the bottom wall of the gluing groove 311 to bond the cylindrical battery cell 101 to the bottom wall of the groove, and the second structural adhesive layer 312 can also be disposed on the groove of the gluing groove 311 side wall, so that the cylindrical cell 101 is bonded to the side wall of the groove.
  • the fixing hole 31 may also be provided with a buckle, and the cylindrical cell 101 and the bracket 3 are engaged with each other through the buckle.
  • both sides of the bracket 3 are provided with connecting pieces 32 for connecting with the external box, and the cylindrical battery module is fixed to the external box through the connecting pieces 32 on both sides.
  • the connection improves the installation stability of the cylindrical battery module.
  • the connecting piece 32 is provided with a through hole, and the fastener passes through the through hole to fix the cylindrical battery module on the external box and other structures.
  • the connecting piece 32 and the bracket 3 are integrated into a structure, which improves the structural strength of the connecting piece 32;
  • the fastener is connected to the bracket 3, or the connecting piece 32 can be a metal reinforcing piece embedded on the bracket 3, which is convenient to operate.
  • a steel sleeve can be added to the connecting piece 32, and the fastener is connected to the outside through the steel sleeve, so as to improve the structural strength and avoid the wear of the connecting piece during multiple disassembly and assembly.
  • the cylindrical battery module further includes two insulating sheets 5 to improve the insulation of the cylindrical battery module; the two insulating sheets 5 are respectively connected on the brackets 3 on both sides to fix the insulating sheets 5;
  • the connecting sheet 32 and the insulating sheet 5 can be glued together, or can be connected by snaps or bolts, so as to facilitate disassembly and assembly.
  • a sealing member is further provided between the insulating sheet 5 and the bracket 3 to improve the sealing performance.
  • the cylindrical battery module further includes a bus bar 6 disposed on both sides of the battery core assembly 100 along the second direction, the bus bar 6 is welded with the pole of the cylindrical battery core 101, and the bracket 3 is provided with a slot. , the bus bar 6 is arranged on the card slot, so that the connection structure of the bus bar 6 is stable, and the use performance of the cylindrical battery module is improved.
  • the bracket 3 is provided with insulating protruding strips 33 , and the insulating protruding strips 33 form slots for installing the bus bars 6 .
  • the insulating protruding strips 33 can insulate and block the adjacent bus bars 6 and facilitate positioning and installation. ;
  • the insulating ridges 33 can be bonded to the bracket 3 .
  • the cylindrical battery module also includes two FPC boards 7 (Flexible Printed Circuit, flexible circuit boards), the two FPC boards 7 are respectively welded with the bus bars 6 on the corresponding side, and the two FPC boards 7 are respectively arranged on the corresponding side.
  • FPC boards 7 Flexible Printed Circuit, flexible circuit boards
  • the connection strength is improved, and the structure is simplified, which is convenient for insulation protection.
  • laser welding can be used for welding.
  • the cylindrical battery module further includes a positive output stage 81 and a negative output stage arranged at both ends, and the positive output stage 81 and the negative output stage are respectively connected to the bus bars 6 on both sides.
  • the cylindrical battery module further includes metal reinforcing sheets 9 and compressed foam on both sides of the insulating sheet 5, and the compressed foam is arranged between the bracket 3 and the insulating sheet 5, and the metal reinforcing sheet 9 is set at the outermost side to compress the compressed foam to ensure the compression amount of the compressed foam.
  • the compressed compressed foam will prevent the leaked liquid from penetrating into the electrical connection part, reducing short-circuit risks and other safety hazards.
  • the cover plate 4 is provided with an opening, and the cooling plate 2 is provided with two connection ports 23 , namely, a liquid inlet and a liquid outlet. Cooling system connection.
  • the cylindrical battery module includes a three-layer battery core assembly 100.
  • the assembly steps of the cylindrical battery module include:
  • the keel 1 is glued, and the keel 1 is installed between the plurality of cylindrical cells 101 of the cell assembly 100;
  • the bracket 3 is arranged to fix a plurality of cylindrical battery cells 101 on the battery cell assembly 100 , and the cylindrical battery cells 101 are plugged and connected to the bracket 3 , which simplifies the structure of the bracket 3 and facilitates the installation;
  • the cooling plate 2 is sandwiched between two adjacent rows of cell assemblies 100, which improves the cooling effect of each row of cell assemblies 100;
  • the arrangement of the arc groove 21 and the first plug portion 22 increases the The contact area between the cooling plate 2 and the cell assembly 100 further improves the cooling effect.
  • the cell assembly 100 can cooperate with the arc groove 21 and the first plug portion 22 without increasing the size of the cylindrical battery module.
  • it also plays a limiting role on the cylindrical battery 101, which improves the stability of the structure; the cooperation of the bracket 3 and the cooling plate 2 simplifies the structure of the cylindrical battery module, reduces the overall weight, and improves the battery energy density.

Abstract

一种圆柱电池模组，包括至少两排电芯组件(100)、两个支架(3)和冷却板(2)，每排电芯组件包括沿第一方向排列的多个圆柱电芯(101)，两个支架设置在电芯组件沿第二方向的两侧，每个支架上设置有多个固定孔(31)，每个圆柱电芯插接于两个支架上的相应的两个固定孔；冷却板夹设在相邻两排电芯组件之间，冷却板沿第一方向间隔设置有多个弧形槽(21)，相邻两个弧形槽之间形成有第一插接部(22)，弧形槽与一排电芯组件的圆柱电芯配合，且第一插接部插入一排电芯组件的相邻两个圆柱电芯之间的间隙。

Description

圆柱电池模组
本申请要求申请日为2020年12月8日、申请号为202011444095.8的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及动力电池技术领域，例如涉及一种圆柱电池模组。
背景技术
相关技术中，圆柱电池模组由多个圆柱电芯通过多并联多串联的方式构成，圆柱电池模组上包括骨架，骨架上开有通孔，圆柱电芯安装在通孔上，其体积相对较大，不利于电池系统的空间排布，影响电池系统的能量密度；且现有结构中的固定架较为复杂，进一步增大了圆柱电池模组的体积，且不便装配，提高了生产成本；另外，电池模组的使用过程中，由于发热量大，具有较大的安全隐患，影响了圆柱电池模组的安全性，现有结构的冷却装置结构较大，会进一步影响圆柱电池模组的体积；由于电芯数量众多，导致了在电芯固定、电芯防护及电芯冷却等问题均提高了解决难度。
发明内容
本申请提供一种圆柱电池模组，能够提高空间利用率，提升圆柱电池模组的能量密度，提高冷却效果。
一实施例提供一种圆柱电池模组，包括：
至少两排电芯组件，每排电芯组件包括沿第一方向排列的多个圆柱电芯；
两个支架，设置在至少两排电芯组件沿第二方向的两侧，每个支架上设置有多个固定孔，每个圆柱电芯插接于两个支架上的相应的两个固定孔；
冷却板，夹设在相邻两排电芯组件之间，冷却板沿第一方向间隔设置有多个弧形槽，相邻两个弧形槽之间形成有第一插接部，多个弧形槽与一排电芯组件的多个圆柱电芯配合，且第一插接部插入一排电芯组件的相邻两个圆柱电芯之间的间隙。
附图说明
图1是本申请一实施例提供的圆柱电池模组的爆炸图；
图2是图1的A处放大图；
图3是图1的B处放大图；
图4是本申请一实施例提供的支架上设置第二结构胶层的结构示意图；
图5是图1的C处放大图；
图6是本申请一实施例提供的圆柱电池模组的结构示意图；
图7是本申请一实施例提供的水冷单元的结构示意图；
图8是图7的D处放大图；
图9是本申请一实施例提供的水冷单元的侧视图；
图10是图9的E处放大图；
图11是本申请一实施例提供的水室的内部结构示意图；
图12是本申请一实施例提供的龙骨的结构示意图；
图13是图12的F处放大图。
图中：
100-电芯组件；101-圆柱电芯；
1-龙骨；11-减重孔；12-卡扣；13-圆弧槽；
2-冷却板；21-弧形槽；22-第一插接部；23-接口；241-第一水管；242-第二水管；25-管接头组件；251-第一进水管接头；252-第一出水管接头；253-第二进水管接头；254-第二出水管接头；26-水室；261-第一分室；262-第二分室；263-第三分室；264-第四分室；265-第一隔板；266-第二隔板；267-第一分部；268-第二分部；271-进水端；272-出水端；
3-支架；31-固定孔；311-打胶槽；312-第二结构胶层；32-连接片；33-绝缘凸条；
4-盖板；41-凹槽；42-第二插接部；
5-绝缘片；
6-汇流排；
7-FPC板；
81-正极输出级；
9-金属加强片；
10-密封件。
具体实施方式
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
本实施例提供了一种圆柱电池模组，其包括至少两排电芯组件100、两个支架3和冷却板2；如图1-图3所示，每排电芯组件100包括沿第一方向排列的多个圆柱电芯101；两个支架3设置在电芯组件100沿第二方向的两侧，支架3上设置有多个固定孔31，每个圆柱电芯101同时插接于两个支架3上的相应的固定孔31；冷却板2夹设在相邻两排电芯组件100之间，冷却板2沿第一方向间隔设置有多个弧形槽21，相邻两个弧形槽21之间形成有第一插接部22，弧形槽21与一排电芯组件100的圆柱电芯101配合，且第一插接部22插入同一排电芯组件100的相邻两个圆柱电芯101之间的间隙。
两个支架3相对设置在圆柱电芯101的两侧，两个支架3上开设有的固定孔31相对应，圆柱电芯101插入到两个固定孔31中，从而实现对圆柱电芯101的固定；支架3的个数也可以为两个以上，其中，两个以上的支架也包括了两个支架。在一实施例中，只要保证两个支架3上的固定孔31相对设置，使圆柱电芯101的两端能插入到对应的固定孔31即可，第二方向与第一方向之间的关系不作限定；当圆柱电芯101排列不整齐时，支架3上的固定孔31需要根据圆柱电芯的排列方式做适应性调整，以便于插接固定；可选地，如图1所示，第二方向垂直于第一方向，其中，第一方向为x向，第二方向为y向，圆柱电芯101整齐排列，支架3垂直设置在圆柱电芯101沿第二方向的两侧，且支架3上开设有整齐排列的固定孔31，便于加工固定孔31，且便于组装；支架3设置为固定电芯组件100上的多个圆柱电芯101，且圆柱电芯101与支架3插接连接， 简化了支架3结构，且便于安装。
冷却板2夹设于相邻两排电芯组件100之间，提高了每排电芯组件100的冷却效果；弧形槽21和第一插接部22的设置，一方面是增大冷却板2与电芯组件100的接触面积，提高了冷却效果，另一方面，电芯组件100与弧形槽21和第一插接部22能相互配合，不会增大圆柱电池模组的体积，同时还起到了对圆柱电芯101的限位作用，提高了结构的稳定性；支架3和冷却板2的配合，简化了圆柱电池模组的结构，降低了整体的重量，提高了电池能量密度。在一实施例中，相邻两个圆柱电芯101之间存在间隙，该间隙可以作以下理解：其一是圆柱电芯101相互抵持，则两个相邻圆柱电芯101的顶端形成弧形间隙，其二是两个圆柱电芯101未抵持，形成间隙，相应地，第一插接部22的形状可根据不同的间隙进行设置。
为使每排的电芯组件100冷却均匀，相邻两排电芯组件100之间均设置一块冷却板2，即冷却板2的数量比电芯组件100的排的数量少一个，提高了每排电芯组件100的温度均一性，提高了圆柱电池模组的使用寿命；冷却板2可并联设置，以提高不同冷却板2之间的冷却均一性；可选地，弧形槽21与圆柱电芯101相切设置，增加弧形槽21与圆柱电芯101的接触面积，提高冷却效果，同时提高了空间利用率。
相关技术中，冷却板呈板状，其与外部冷却系统连通的进水接口和出水接口分别设置在两侧，进水接口和出水接口占用一定空间，降低了电池模组空间利用率。另外，进水接口和出水接口分别通过水室与管接头连接，水室数量多，增加了液体泄漏的风险，且提高了生产成本。
为解决上述问题，如图1、图7和图8所示，冷却板2呈环形，冷却板2的进水端271和出水端272相邻设置，且进水端271和出水端272设置在冷却板2的中部位置，呈环形设置的冷却板2的进水端271和出水端272集中设置在冷却板2的中部，节约空间，提高了电池模组空间利用率。在一实施例中，冷却板2上设置有管接头组件25和水室26(参考图8和图9)，管接头组件25包括至少两个管接头，每个管接头分别与设置在进水端271的进水接口和设置在出水端272的出水接口连通；水室26连接进水端271、出水端272和管接头组件25，水室26的内部分隔成至少两个分室，每个分室分别与进水接口或和出水接口连通。
环形的冷却板2的进水端271和出水端272连接在同一个水室26上，减少 了水室26的数量，简化了结构，减少了水室26与冷却板2的组装，降低了成本；减少水室26与冷却板2的连接，降低了液体泄漏的风险，提高了使用可靠性；减少水室26数量，节省空间；可选地，水室26设置在冷却板2的中部位置，在水冷单元安装在电池模组上时，当靠近冷却板2上设置有相邻排电芯组件100时，水室26可设置在相邻排电芯组件100的两个圆柱电芯101之间，以减少水室26所占空间，提高了空间利用率。可选地，水室26与冷却板2焊接连接，提高连接强度，减少水室26数量，可减少焊接操作，从而降低成本。在一实施例中，环形可以是跑道形或腰圆形。冷却板2、管接头组件25和水室26形成水冷单元，水冷单元也可单独应用于其他电池模组中。
可选地，冷却板2包括至少两个水管，每个水管沿圆柱电芯101的长度方向并列排布设置以增加冷却板2的宽度；使冷却板2内的冷却液进行分流，提高冷却液的流通效果，进而提高了冷却效果。在一实施例中，水室26分隔为至少四个分室，一部分分室中的每个分室分别与每个水管的进水接口连通，另一部分分室中的每个分室分别与每个水管的出水接口连通。当冷却板2上设置有两个水管时，水室26分为四个分室，两个进水接口和两个出水接口分别与四个分室一一对应连通；或者水室26也可以分为八个分室，八个分室分为四组，每组分室与两个进水接口和两个出水接口分别一一对应连通；每组分室的数量可以不同，因此可以根据使用需求进行设置分室，满足每个水管的进水接口和出水接口均与不同分室连通即可，不做限定。
随着电池模组长度的增加，冷却板2的长度也可以同时增加，当冷却板2的长度过长时，冷却板2对不同圆柱电芯101的冷却会产生不均衡性。为此，本实施例中，每个水管的进水接口与相邻水管的出水接口交替设置在冷却板2的同一端部，以使相邻两个水管内的冷却水沿相反方向循环，同一个圆柱电芯101可能由一个水管的头部和另一个水管的尾部同时冷却，从而提高了不同圆柱电芯101的冷却均衡性，降低不同圆柱电芯101之间的温差。
可选地，水室26包括两个列分室，每个列分室分别与进水端271和出水端272连通设置；每个列分室包括多个分室，一个列分室上的每个分室分别与靠近相应列分室一侧的每个水管的第一端连通，另一个列分室上的每个分室分别与每个水管的第二端连通，分室结构简单，便于分室与每个水管的进水接口和出水接口连通。本实施例中，如图11所示，水室26包括第一隔板265和第二隔板266，第一隔板265将水室分隔为两列大分室，第二隔板266将每列大分室分 隔为两个分室。根据水管数量不同，水室26上可设置多个第二隔板266，将每个大分室分为多个分室。
本实施例中，如图7、图8和图11所示，冷却板2包括第一水管241和第二水管242，第一水管241的出水端272和进水端271分别连接有第一出水管接头252和第一进水管接头251，第二水管242的出水端272和进水端271分别连接有第二出水管接头254和第二进水管接头253，水室26分为第一分室261、第二分室262、第三分室263和第四分室264。其中，第一分室261和第三分室263靠近每个水管的第一端设置，第二分室262和第四分室264靠近每个水管的第二端设置；第一分室261分别与第一出水管接头252和第一水管241的出水接口连通；第二分室262分别与第一进水管接头251和第一水管241的进水接口连通；第三分室263分别与第二进水管接头253和第二水管242的进水接口连通；第四分室264分别与第二出水管接头254和第二水管242的出水接口连通；结构简单，且实现了第一水管241和第二水管242内的冷却液沿相反方向循环流动，提高了圆柱电芯101的冷却效果。
可选地，水室26包括与水管接头连通的进液口和与冷却板2连通的出液口，进液口的内径尺寸大于出液口的内径尺寸，冷却液从外部冷却系统流向冷却板2时，使水室26起到缓冲作用，减少冷却液作用于冷却板2的冲击力。本实施例中，如图9和图10所示，水室26包括第一分部267和第二分部268，第一分部267上设置有进液口，第二分部268上设置有出液口，第一分部267的内部容积大于第二分部268的内部容积，第一分部267和第二分部268之间可通过倾斜板连接；可选地，第一分部267和第二分部268也可通过圆弧板连接，圆弧板与圆柱电芯101相配合，从而提高空间利用率；其他实施例中，水室26也可以设置为漏斗状等结构，在此不做限定。
可选地，冷却板2上设置有用于与圆柱电芯101相配合的弧形槽，减小冷却板2所占空间，提高了电池模组的空间利用率。如图2所示，弧形槽21交替设置在冷却板2的两侧面上，冷却板2两侧的弧形槽21分别与相邻两排电芯组件100的圆柱电芯101配合；冷却板2的截面形成波浪形，第一侧面的弧形槽21形成了第二侧面的第一插接部22，第二侧面的弧形槽21则形成第一侧面的第一插接部22，充分利用了冷却板2的结构，减小了冷却板2的厚度，降低了电池模组的体积；在圆柱电池模组的体积一定的情况下，则提高了圆柱电芯101的空间利用率，进而提升了圆柱电池模组的能量密度。
可选地，圆柱电芯101与弧形槽21的接触弧度为55°-65°，弧形槽21的接触弧度为弧形槽21的弧面的圆心角为55°-65°，避免接触弧度过大而降低沿第一方向的空间利用率，也避免接触弧度过小而降低电芯组件排布方向的空间利用率。可选地，接触弧度为60°。
为降低电芯与水冷单元之间的绝缘风险，本实施例中，选用绝缘材质的冷却板2，可选地，冷却板2的的材质为铝或者不锈钢等金属材质，既能提高结构强度，又能提高使用可靠性。可选地，冷却板2上设置有绝缘层，从而进一步提高了冷却板2的绝缘性能，有效降低漏电风险。
其他实施例中，也可以在冷却板2的表面设置有绝缘漆层，以避免在圆柱电芯101漏电时与冷却板2导电，提高了安全性；在一实施例中，绝缘漆层上还设置有第三结构胶层，使冷却板2与圆柱电芯101粘接，提高连接强度。
在一实施例中，支架3可由塑胶材质制成，既可满足强度要求，又能降低重量，提高了圆柱电池模组的能量密度。
为提高相邻两个圆柱电芯101之间的相对安装稳定性，可选地，填充结构可以是密封胶结构，圆柱电芯101之间通过打密封胶进行填充，通过形成密封胶结构进行圆柱电芯101的固定；可选地，填充结构也可以是龙骨1，至少一排电芯组件100的相邻两个圆柱电芯101之间设置有龙骨1，龙骨1与圆柱电芯101之间设置有第一结构胶层，第一结构胶层粘接龙骨1和圆柱电芯101，提高了圆柱电芯101之间的结构强度，减少打胶，提高生产效率。
如图12和图13所示，龙骨1的长度与圆柱电芯101的长度相适应，增大接触面积，提高安装稳定性；可选地，龙骨1的宽度方向上设有与圆柱电芯101相配合的圆弧槽13，圆弧槽13与圆柱电芯101的外周相贴合，以增大接触面积，提高安装稳定性，同时能减小龙骨1的体积，进而减小圆柱电芯101在的排布方向所占体积。可选地，龙骨1设置成中空结构，减轻龙骨1重量，进而减轻了圆柱电池模组的重量；在一实施例中，龙骨1上沿高度方向开设有多个减重孔11，便于加工，减重孔11可以是方形孔或圆形孔等，可以是通孔也可以是盲孔，具体根据实际需求进行设置。
组装时，可先在龙骨1表面打胶形成第一结构胶层，之后再安装龙骨1；可选地，龙骨1与圆柱电芯101配合的圆弧槽13上设置有中空凹槽，打胶时，在中空凹槽上打胶，再与圆柱电芯101粘接，中空凹槽既可支撑龙骨1，避免龙骨1变形，又可以为第一结构胶层提供打胶空间，便于打胶的定位及龙骨1的装配。
可选地，龙骨1沿长度方向的两端可以粘接在支架3上，提高结构强度；可选地，参照图12和图13，龙骨1沿长度方向的两端分别设置有卡扣，相应地，支架3上开设有卡槽，卡扣卡接在卡槽上，从而使龙骨1和支架3通过卡扣卡接形成了可拆卸的连接方式，便于结构拆装；在一实施例中，龙骨1的每端可设置两个卡扣12，两个卡扣12的卡接方向相反，避免沿一个方向运动过程中使卡扣12与卡槽之间产生松动，进一步提高了龙骨1与支架3的连接可靠性。
可选地，圆柱电池模组还包括盖板4，盖板4设置在电芯组件100沿第三方向的端部，防止外部结构对电芯组件100造成冲击伤害。盖板4可根据电芯组件100的具体排布结构进行适应性设置，本实施例中，如图1和图6所示，电芯组件100整齐排布，第三方向为z向，第三方向垂直于第一方向和第二方向，以便于组装。
本实施例中，电芯组件100包括靠近盖板4设置的第一排电芯组件100，第一排电芯组件100的相邻两个圆柱电芯101之间未设置有填充结构时，盖板4上间隔设置有多个凹槽41，相邻两个凹槽41之间形成第二插接部42，凹槽41与圆柱电芯101配合，且第二插接部42插入相邻两个圆柱电芯101之间的间隙。盖板4上的第二插接部42和凹槽41与圆柱电芯101配合，第二插接部42和凹槽41能替代龙骨1或密封胶结构起到填充作用，同样用于圆柱电芯101的限位，并能起到提高圆柱电芯101之间的结构强度的作用。参照图1，本实施例中，圆柱电池模组包括沿第三方向设置在多排电芯组件100上、下两端的两个盖板4，最上一排的电芯组件100和最下一排电芯组件100通过盖板4进行限位和加强结构，设置在中间排的电芯组件100可通过龙骨1或密封胶结构进行固定，同时上下两个盖板4还能对电芯组件100起到防护作用。
其他实施例中，电芯组件100包括靠近盖板4设置的第一排电芯组件100，第一排电芯组件100的相邻两个圆柱电芯101之间设置有填充结构如龙骨1或密封胶结构时，盖板4为平板；每一排电芯组件100之间均设置有龙骨1或密封胶结构，使每排电芯组件100结构相同，盖板4的结构简单，便于生产，降低了成本。
在一实施例中，盖板4可由塑料材质制成，既可满足强度要求，又能降低重量，提高了圆柱电池模组的能量密度。
可选地，圆柱电池模组包括至少三排电芯组件100，冷却板2包括第一冷却板和第二冷却板，本实施例中，第一冷却板和第二冷却板为环形的冷却板2的 上层和下层；第一排电芯组件100，设置在盖板4和第一冷却板之间，第一冷却板与第一排电芯组件100的接触面积为第一接触面积S1；第二排电芯组件100，设置在第一冷却板和第二冷却板之间，第一冷却板与第二排电芯组件100的接触面积为第二接触面积S2；其中，S1＞S2。由于第二排电芯组件100通过双侧冷却板2同时冷却，其冷却效果强于仅通过单侧冷却板2冷却的第一排电芯组件100，通过改变第一排电芯组件100及第二排电芯组件100与冷却板2的接触面积，提高了冷却均一性。在一实施例中，第一冷却板上靠近第二排电芯组件100的弧形槽21上设置有绝热件，以改变第二排电芯组件100与相邻两个弧形槽21的接触角度，减少第二排电芯组件100与冷却板2的接触面积，降低冷却效果，进而提高了第二排电芯组件100与第一排电芯组件100之间的冷却均一性。可选地，绝热件可以是塑料绝缘片粘接在弧形槽21上。具体如何设置绝热件的大小可根据热仿真计算等进行确定，绝热件也可以是绝热涂层，不再赘述。
可选地，圆柱电芯101与固定孔31粘接或可拆卸连接，提高了电芯组件100与支架3之间的连接强度。本实施例中，如图3-图5所示，固定孔31上靠近圆柱电芯101的一侧开设有打胶槽311，打胶槽311上设置有第二结构胶层312，圆柱电芯101通过第二结构胶层312连接于固定孔31上，从而提高了圆柱电芯101与支架3的连接强度；在一实施例中，可通过打胶设备将胶打入打胶槽311内形成第二结构胶层312，再将圆柱电芯101安装在固定孔31上，之后第二结构胶层312自然固化。可选地，第二结构胶层312可以设置在打胶槽311的槽底壁，使圆柱电芯101与槽底壁粘接，第二结构胶层312也可以设置在打胶槽311的槽侧壁，使圆柱电芯101与槽侧壁粘接。其他实施例中，固定孔31上也可设置有卡扣，圆柱电芯101与支架3通过卡扣卡接配合。
可选地，如图1、图5和图6所示，支架3的两侧设置有用于与外部箱体连接的连接片32，圆柱电池模组通过两侧的连接片32与外部箱体固定连接，提高了圆柱电池模组的安装稳定性，在一实施例中，连接片32上开设有通孔，紧固件穿过通孔以将圆柱电池模组固定在外部箱体等结构上。本实施例中，连接片32与支架3为一体结构，提高了连接片32的结构强度；其他实施例中，连接片32与支架3也可以为分体结构，连接片32可以粘接或通过紧固件连接在支架3上，或者连接片32可以是嵌设在支架3上的一块金属加强片，操作方便。可选地，连接片32上可以加钢套，紧固件通过钢套与外部连接，提高结构强度，避 免多次拆装时使连接片磨损。
可选地，圆柱电池模组还包括两个绝缘片5，以提高圆柱电池模组的绝缘性；两个绝缘片5分别连接在两侧的支架3上，使绝缘片5固定；在一实施例中，连接片32和绝缘片5可以粘接，也可以通过卡扣卡接或螺栓连接，便于拆装。可选地，绝缘片5和支架3之间还设置有密封件，提高密封性。
可选地，圆柱电池模组还包括设置在所述电芯组件100沿第二方向的两侧的汇流排6，汇流排6与圆柱电芯101的极柱焊接，支架3上设有卡槽，汇流排6设置在卡槽上，使汇流排6的连接结构稳定，提高圆柱电池模组的使用性能。如图5所示，支架3上设置有绝缘凸条33，绝缘凸条33形成用于安装汇流排6的卡槽，绝缘凸条33能使相邻的汇流排6绝缘阻隔，并且方便定位安装；绝缘凸条33可粘接在支架3上。
可选地，圆柱电池模组还包括两个FPC板7(Flexible Printed Circuit,柔性电路板)，两个FPC板7分别与相应一侧的汇流排6焊接，两个FPC板7分别设置在相应的汇流排6和相应的支架3之间，且FPC板7与相应一侧的支架3固定连接，如通过热铆接或焊接等工艺进行连接，提高了连接强度，且简化了结构，便于绝缘防护；在一实施例中，可采用激光焊接方式进行焊接。
如图1和图6所示，圆柱电池模组还包括设置在两端的正极输出级81和负极输出级，正极输出级81和负极输出级分别与两侧的汇流排6连接。
为提高使用安全性，可选地，圆柱电池模组还包括设置在绝缘片5两侧的金属加强片9和压缩泡棉，压缩泡棉设置在支架3和绝缘片5之间，金属加强片9设置在最外侧，用来压紧压缩泡棉，保证压缩泡棉的压缩量，当圆柱电芯101漏液时，压缩后的压缩泡棉会阻挡漏出的液体渗透进电连接部分，降低短路风险和其它安全隐患。
参照图6，可选地，盖板4上开设有开口，冷却板2上设置有两个连接接口23，即一个进液口和一个出液口，两个结构分别通过开口穿出并与外部冷却系统连接。
本实施例中，圆柱电池模组包括三层电芯组件100，可选地，圆柱电池模组的组装步骤包括：
S1，依次安装设置下端的盖板4、电芯组件100、冷却板2、电芯组件100和设置在上端的盖板4；当包括多层电芯组件100时则依次交替安装冷却板2和电芯组件100。
S2，龙骨1打胶，将龙骨1安装在电芯组件100的多个圆柱电芯101之间；
S3，支架3打胶。
S4，依次安装设置在同一侧的支架3、汇流排6、FPC板7、压缩泡棉、绝缘片5、密封件10、金属加强片9。
S5，依次安装设置在另一侧的支架3、汇流排6、FPC板7、压缩泡棉、绝缘片5、密封件10、金属加强片9。
本申请提供的一种圆柱电池模组，支架3设置为固定电芯组件100上的多个圆柱电芯101，且圆柱电芯101与支架3插接连接，简化了支架3的结构，且便于安装；冷却板2夹设于相邻两排电芯组件100之间，提高了每排电芯组件100的冷却效果；弧形槽21和第一插接部22的设置，一方面是增大冷却板2与电芯组件100的接触面积，进一步提高了冷却效果，另一方面，电芯组件100与弧形槽21和第一插接部22能相互配合，不会增大圆柱电池模组的体积，同时还起到了对圆柱电芯101的限位作用，提高了结构的稳定性；支架3和冷却板2的配合，简化了圆柱电池模组的结构，降低了整体的重量，提高了电池能量密度。

Claims (22)

  1. 一种圆柱电池模组，包括：
    至少两排电芯组件(100)，每排所述电芯组件(100)包括沿第一方向排列的多个圆柱电芯(101)；
    两个支架(3)，设置在所述至少两排电芯组件(100)沿第二方向的两侧，每个所述支架(3)上设置有多个固定孔(31)，每个所述圆柱电芯(101)插接于所述两个支架(3)上的相应的两个固定孔(31)；
    冷却板(2)，夹设在相邻两排所述电芯组件(100)之间，所述冷却板(2)沿所述第一方向间隔设置有多个弧形槽(21)，相邻两个所述弧形槽(21)之间形成有第一插接部(22)，所述多个弧形槽(21)分别与一排所述电芯组件(100)的所述多个圆柱电芯(101)配合，且所述第一插接部(22)插入所述一排所述电芯组件(100)的相邻两个所述圆柱电芯(101)之间的间隙。
  2. 根据权利要求1所述的圆柱电池模组，还包括填充结构，所述填充结构包括龙骨(1)，至少一排所述电芯组件(100)的相邻两个所述圆柱电芯(101)之间设置有所述龙骨(1)，所述龙骨(1)与所述圆柱电芯(101)之间设置有第一结构胶层。
  3. 根据权利要求2所述的圆柱电池模组，其中，所述龙骨(1)为中空结构。
  4. 根据权利要求2所述的圆柱电池模组，其中，所述龙骨(1)与所述支架(3)可拆卸连接或粘接。
  5. 根据权利要求1所述的圆柱电池模组，还包括填充结构，所述填充结构包括密封胶结构，至少一排所述电芯组件(100)的相邻两个所述圆柱电芯(101)之间填充有所述密封胶结构。
  6. 根据权利要求2或5所述的圆柱电池模组，还包括盖板(4)，所述盖板(4)设置在所述至少两排电芯组件(100)沿第三方向的端部。
  7. 根据权利要求3或4所述的圆柱电池模组，还包括盖板(4)，所述盖板(4)设置在所述至少两排电芯组件(100)沿第三方向的端部。
  8. 根据权利要求7所述的圆柱电池模组，其中，所述至少两排电芯组件(100)包括靠近所述盖板(4)设置的第一排电芯组件(100)，所述盖板(4)上间隔设置有多个凹槽(41)，相邻两个所述凹槽(41)之间形成第二插接部(42)，所述多个凹槽(41)分别与所述多个圆柱电芯(101)配合，且所述第二插接部(42)插入相邻两个所述圆柱电芯(101)之间的间隙。
  9. 根据权利要求6所述的圆柱电池模组，其中，所述至少两排电芯组件(100)包括靠近所述盖板(4)设置的第一排电芯组件(100)，所述盖板(4)为平板。
  10. 根据权利要求6所述的圆柱电池模组，其中，所述圆柱电池模组包括至少三排所述电芯组件(100)，所述冷却板(2)包括第一冷却板和第二冷却板；第一排所述电芯组件(100)，设置在所述盖板(4)和所述第一冷却板之间，所述第一冷却板与第一排所述电芯组件(100)的接触面积为第一接触面积；
    第二排所述电芯组件(100)，设置在所述第一冷却板和所述第二冷却板之间，所述第一冷却板与第二排所述电芯组件(100)的接触面积为第二接触面积；其中，第一接触面积大于第二接触面积。
  11. 根据权利要求10所述的圆柱电池模组，其中，所述第一冷却板上靠近所述第二排所述电芯组件(100)的弧形槽(21)上设置有绝热件。
  12. 根据权利要求2-5任一项所述的圆柱电池模组，其中，所述圆柱电芯(101)与所述固定孔(31)设置为粘接或可拆卸连接。
  13. 根据权利要求12所述的圆柱电池模组，其中，所述固定孔(31)上靠近所述圆柱电芯(101)的一侧开设有打胶槽(311)，所述打胶槽(311)上设置有第二结构胶层(312)，所述圆柱电芯(101)通过所述第二结构胶层(312)连接于所述固定孔(31)上。
  14. 根据权利要求2-5任一项所述的圆柱电池模组，还包括设置在所述至少两排电芯组件(100)沿第二方向的两侧的汇流排(6)，所述汇流排(6)与所述圆柱电芯(101)的极柱焊接，所述支架(3)上设有卡槽，所述汇流排(6)设置在所述卡槽上。
  15. 根据权利要求14所述的圆柱电池模组，还包括两个柔性电路FPC板(7)，每个FPC板(7)设置在相应的汇流排(6)和相应的支架(3)之间，所述每个FPC板(7)与所述相应的汇流排(6)焊接，并与所述相应的支架(3)固定连接。
  16. 根据权利要求2-5任一项所述的圆柱电池模组，其中，所述支架(3)上设置有用于与外部箱体连接的连接片(32)。
  17. 根据权利要求16所述的圆柱电池模组，还包括两个绝缘片(5)，所述两个绝缘片(5)分别连接在所述两个绝缘片(5)的两侧的所述两个支架(3)上。
  18. 根据权利要求17所述的圆柱电池模组，还包括设置在所述绝缘片(5) 两侧的金属加强片(9)和压缩泡棉，所述压缩泡棉设置在所述支架(3)和所述绝缘片(5)之间。
  19. 根据权利要求2-5任一项所述的圆柱电池模组，其中，所述冷却板(2)的表面设置有绝缘漆层。
  20. 根据权利要求19所述的圆柱电池模组，其中，所述绝缘漆层上还设置有第三结构胶层。
  21. 根据权利要求2-5任一项所述的圆柱电池模组，其中，所述多个弧形槽(21)交替设置在所述冷却板(2)的两侧面上，所述冷却板(2)两侧的所述多个弧形槽(21)分别与相邻两排所述电芯组件(100)的所述多个圆柱电芯(101)配合。
  22. 根据权利要求2-5任一项所述的圆柱电池模组，其中，所述冷却板(2)呈环形，所述冷却板(2)的进水端(271)和出水端(272)相邻设置，且所述进水端(271)和所述出水端(272)设置在所述冷却板(2)的中部位置。
PCT/CN2021/074987 2020-12-08 2021-02-03 圆柱电池模组 WO2022121105A1 (zh)

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CN113793978A (zh) * 2021-09-28 2021-12-14 广东博力威科技股份有限公司 一种大型圆柱电芯的装配结构及其方法
CN113937411B (zh) * 2021-09-30 2023-07-14 蜂巢能源科技有限公司 圆柱电池模组
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EP4258420A4 (en) * 2022-01-13 2024-03-13 Contemporary Amperex Technology Co Ltd BATTERY, ELECTRICAL APPARATUS, AND BATTERY PREPARATION METHOD AND APPARATUS
WO2023142576A1 (zh) * 2022-01-26 2023-08-03 湖北亿纬动力有限公司 一种冷却板组件、液冷模组及电池包
CN114628834B (zh) * 2022-03-29 2023-10-20 蜂巢能源科技股份有限公司 圆柱电池模组
CN114914603A (zh) * 2022-06-01 2022-08-16 广州小鹏汽车科技有限公司 电池模组装配结构、系统及装配方法
CN115172981A (zh) * 2022-07-29 2022-10-11 嘉兴模度新能源有限公司 一种自锁紧团状电池单元
CN115275430B (zh) * 2022-08-23 2023-12-19 南通耐维特电源有限公司 一种具有快速散热功能的锂电池盒

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102244216A (zh) * 2010-05-11 2011-11-16 欣旺达电子股份有限公司 电池支架组件以及圆柱电芯多节组合公用支架
JP2012009388A (ja) * 2010-06-28 2012-01-12 Hitachi Vehicle Energy Ltd 組電池
CN105914320A (zh) * 2016-07-04 2016-08-31 河南森源重工有限公司 一种电动汽车用圆柱电池模组
CN106711542A (zh) * 2016-12-15 2017-05-24 上海轶源动力科技有限公司 一种电动车电池组冷却装置和电池模组
CN209418724U (zh) * 2019-01-11 2019-09-20 浙江零跑科技有限公司 一种液冷板和液冷器
CN110718726A (zh) * 2019-11-05 2020-01-21 联动天翼新能源有限公司 一种圆柱形电池模组冷却系统及电池模组
CN210640339U (zh) * 2019-07-09 2020-05-29 浙江零跑科技有限公司 一种电池水冷板结构

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102244216A (zh) * 2010-05-11 2011-11-16 欣旺达电子股份有限公司 电池支架组件以及圆柱电芯多节组合公用支架
JP2012009388A (ja) * 2010-06-28 2012-01-12 Hitachi Vehicle Energy Ltd 組電池
CN105914320A (zh) * 2016-07-04 2016-08-31 河南森源重工有限公司 一种电动汽车用圆柱电池模组
CN106711542A (zh) * 2016-12-15 2017-05-24 上海轶源动力科技有限公司 一种电动车电池组冷却装置和电池模组
CN209418724U (zh) * 2019-01-11 2019-09-20 浙江零跑科技有限公司 一种液冷板和液冷器
CN210640339U (zh) * 2019-07-09 2020-05-29 浙江零跑科技有限公司 一种电池水冷板结构
CN110718726A (zh) * 2019-11-05 2020-01-21 联动天翼新能源有限公司 一种圆柱形电池模组冷却系统及电池模组

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