WO2024032641A1 - Battery module and battery pack - Google Patents

Battery module and battery pack Download PDF

Info

Publication number
WO2024032641A1
WO2024032641A1 PCT/CN2023/111867 CN2023111867W WO2024032641A1 WO 2024032641 A1 WO2024032641 A1 WO 2024032641A1 CN 2023111867 W CN2023111867 W CN 2023111867W WO 2024032641 A1 WO2024032641 A1 WO 2024032641A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery module
plate
battery
fpc
end plate
Prior art date
Application number
PCT/CN2023/111867
Other languages
French (fr)
Chinese (zh)
Inventor
陈保国
程岩
张福增
刘洪鹏
徐淼
Original Assignee
天津市捷威动力工业有限公司
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
Priority claimed from CN202210948912.6A external-priority patent/CN115241612B/en
Priority claimed from CN202223039038.9U external-priority patent/CN218939920U/en
Application filed by 天津市捷威动力工业有限公司 filed Critical 天津市捷威动力工业有限公司
Publication of WO2024032641A1 publication Critical patent/WO2024032641A1/en

Links

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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-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
    • H01M10/61—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
    • H01M10/64—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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—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
    • 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
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
    • 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
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals

Definitions

  • This application belongs to the technical field of the new energy automobile industry and relates to a battery module and a battery pack.
  • the FPC is set to collect the temperature data and voltage data of the battery core, and the battery module
  • the FPC When assembling the battery pack, the FPC is usually placed on the top of the battery core and between the battery core and the cooling plate. This structural arrangement causes part of the heat transmitted from the battery core to the cooling plate to be blocked by the FPC, thereby reducing the battery core's durability. Heat dissipation efficiency.
  • the FPC usually transfers the collected temperature data and voltage data to the battery management system (Battery Management System, BMS) through the battery management unit (BMU).
  • BMS Battery Management System
  • BMU battery management unit
  • the BMU is related to the battery model.
  • the battery packs are installed separately in the battery box. When assembling the battery pack, you need to first The BMU and battery module are installed into the battery box respectively, and then the BMU and FPC are assembled. This structural setting increases the difficulty of assembling the BMU and FPC and is not conducive to improving production efficiency.
  • this application provides battery modules and battery packs, and the FPC acquisition board is connected inside the battery module to reduce the space of the module series wiring harness, which is conducive to improving the efficiency of module series and parallel connection.
  • the battery module can not only improve the heat dissipation efficiency of the battery core, but also realize the assembly of BMU and FPC at the battery module level.
  • this application provides a battery module, which includes a battery module, a side plate, a first end plate, a second end plate, a BMU slave board, a lead-out copper bar and an FPC collection board;
  • the side plates are located on both sides of the battery module, and the first end plate and the second end plate are respectively located at both ends of the battery module;
  • the BMU slave board is integrated on a side surface of the first end plate away from the battery core module;
  • the lead-out copper bar includes a positive lead-out copper bar and a negative lead-out copper bar respectively provided at both ends of the battery module;
  • a first insulating component is provided between the battery module and the first end plate to insulate the battery module and the negative lead copper bar;
  • a second insulation component is provided between the battery module and the second end plate to insulate the battery module and the positive lead copper bar;
  • the FPC collection board includes a bending part and a connecting part.
  • the connecting part extends between the battery module and the side plate.
  • the bending part passes through the first insulating component and bends and extends. Connect the BMU slave board to the outside of the first end board.
  • the present application provides a battery pack, which includes the battery module described in the first aspect.
  • this application provides a battery module, including:
  • the battery cell module includes a plurality of battery cells, the plurality of battery cells have a side-out pole structure, and the plurality of battery cells are stacked in sequence, with the poles of the battery core facing the side wall of the battery module;
  • FPC FPC is set on the side of the battery module with the pole
  • the BMU slave board is fixed on the first end plate of the battery module and is located on the side away from the battery module.
  • the BMU slave board is provided with a plug-in interface.
  • the PFC extends towards the BMU slave board, and the end of the FPC A plug connector is provided at the bottom, and the plug connector is inserted into the plug interface.
  • This application provides a battery pack, which has higher safety and higher production efficiency.
  • the present application provides a battery pack, including a box and a battery module of the third aspect.
  • the battery module is installed in the box.
  • Figure 1 is a schematic structural diagram of a battery module provided in Embodiment 1 of the present application.
  • FIG. 2 is a schematic diagram of the cooperation of the battery module, the first end plate and the second end plate provided in Embodiment 1 of the present application;
  • FIG. 3 is a schematic structural diagram of the FPC acquisition board provided in Embodiment 1 of the present application.
  • Figure 4 is a schematic structural diagram of the positive electrode lead copper bar provided in Embodiment 1 of the present application.
  • Figure 5 is a schematic diagram of the cooperation of the side plate, the first end plate and the second end plate provided in Embodiment 1 of the present application;
  • Figure 6 is a schematic structural diagram of the aluminum row assembly provided in Embodiment 1 of the present application.
  • Figure 7 is a schematic structural diagram of the exhaust valve provided in Embodiment 1 of the present application.
  • FIG. 8 is an exploded schematic diagram of the battery module provided by this application without showing the side panels and protective cover;
  • FIG. 9 is a schematic structural diagram of the battery module provided by this application without showing the side panels;
  • FIG. 10 is a partial structural schematic diagram of the FPC and bus bracket provided by this application.
  • Figure 11 is a schematic structural diagram of the FPC, first insulating board and second insulating board provided by this application;
  • FIG 12 is a schematic structural diagram of the battery module provided by this application.
  • 1-Battery module 2-Side plate; 3-First end plate; 4-Second end plate; 5-FPC collection plate; 6-FPC support frame; 7-Connection part; 8-Bending part; 9- Bus bar; 10-bus bar bracket; 11-first insulating component; 12-second insulating component; 13-positive lead copper bar; 14-heat insulation plate; 15-exhaust valve; 16-insulating film layer; 17- Hot melt column; 18-BMU slave board; 19-negative lead copper bar; 200-FPC; 210-first FPC section; 211-hot melting point; 220-second FPC section; 230-third FPC section; 231-insert Connector; 410-plug interface; 610-first insulating plate; 620-second insulating plate; 700-protective cover; 201-fixing part.
  • the term “above” or “below” a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. No Not in direct contact but through other characteristic contacts between them.
  • the terms “above”, “above” and “above” a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature.
  • “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • the present application provides a battery module, including a battery module 1, a side plate 2, a first end plate 3, a second end plate 4, a BMU slave board 18, a lead copper bar and an FPC collection board 5.
  • the side plates 2 are located on both sides of the battery module 1 , and the first end plate 3 and the second end plate 4 are respectively located at both ends of the battery module 1 .
  • the BMU slave board 18 is integrated on the side surface of the first end plate 3 away from the battery module 1 .
  • the lead-out copper bar includes a positive lead-out copper bar 13 and a negative lead-out copper bar 19 .
  • the positive lead-out copper bar 13 and the negative lead-out copper bar 19 are respectively disposed at both ends of the battery module 1 .
  • a first insulating component 11 is disposed between the battery module 1 and the first end plate 3 to insulate the battery module 1 and the negative lead copper bar 19 .
  • a second insulating component 12 is disposed between the battery module 1 and the second end plate 4 to insulate the battery module 1 and the positive lead copper bar 13 .
  • the FPC collection board 5 includes a bending part 8 and a connecting part 7.
  • the connecting part 7 extends between the battery module 1 and the side plate 2.
  • the bending part 8 passes through the first insulating component 11 and bends and extends to the first end.
  • the outside of board 3 is connected to BMU slave board 18 .
  • the FPC collection board 5 is connected inside the battery module, and the first insulation component 11 can prevent the FPC collection board 5 from contacting the first end plate 3 .
  • the positive electrode lead-out copper bar 13 is arranged in the second insulating component 12.
  • the BMU slave board 18 is integrated on the battery module. When connected in series in the PACK, it can save the space of the wiring harness. This is mainly because the battery module with the BMU slave board 18 only needs two wires when connected at low voltage. At the same time, the voltage acquisition and temperature acquisition of the battery module are directly connected to the BMU slave board 18 on the battery module through the FPC acquisition board 5, which facilitates the connection inside the PACK.
  • the battery core module 1 includes at least two battery cores arranged in sequence, and poles are independently provided on both sides along the length direction of the battery cores.
  • the batteries in this application all have poles on both sides.
  • the temperature collection and voltage collection of the battery module are distributed on both sides.
  • the FPC collection board 5 is connected inside the battery module and protected by insulating parts. , can avoid affecting the contact between the battery core and the liquid cooling plate, and improve the cooling efficiency of the battery module.
  • exhaust valves 15 are respectively provided on one side of the battery core close to the side plate 2 .
  • a fixing portion bent toward the side close to the battery module 1 is provided along the outer edge of the side plate 2 .
  • the fixing portion is configured to be welded and fixed to the first end plate 3 and the second end plate 4 respectively.
  • the outer edges of the side plates 2 are all bent fixing parts, and the cross section of the side plates 2 has a "C" shape structure.
  • the upper and lower fixed parts of the side plate 2 are respectively close to the battery module 1 and are bonded and fixed to provide a certain extrusion force in the direction of battery expansion and increase the strength and modality of the module.
  • the fixed part at the left end of the side plate 2 and the first end plate 3 are fixed by laser welding, and the fixed part at the right end of the side plate 2 and the second end plate 4 are fixed by laser welding. There is no need for a bottom shell or an upper cover, which is conducive to realizing a double layer. Liquid cooled.
  • the first insulating component 11 includes a first insulating plate and a second insulating plate.
  • the first insulating plate and the second insulating plate are respectively disposed on both sides of the bent portion 8 of the FPC collection plate 5 .
  • the outer surface of the bent portion 8 extending out of the first end plate 3 is also provided with a protective cover.
  • the FPC acquisition board 5 in this application is directly plugged into the BMU slave board 18 through a connector, and is insulated through a protective cover to prevent damage to the FPC acquisition board 5 during the installation process, and to prevent condensation from damaging the insulation. Impact.
  • the second insulation component 12 includes a third insulation plate and a fourth insulation plate.
  • the third insulating plate is disposed between the positive lead copper bar 13 and the second end plate 4
  • the fourth insulating plate is disposed between the positive lead copper bar 13 and the battery module 1 .
  • the positive lead copper bar 13 in this application is disposed between the third insulating plate and the fourth insulating plate, forming a "sandwich" structure to prevent the positive lead copper bar 13 from contacting the battery module 1, and the third insulating plate and the second terminal
  • the plate 4 is bonded and fixed, and the fourth insulating plate fully covers the positive lead copper bar 13 to ensure the electrical clearance and creepage distance.
  • the battery module further includes aluminum row assemblies located on both sides of the cell module 1 .
  • the aluminum bus assembly includes a busbar bracket 10 and at least two busbars 9 .
  • the busbar bracket 10 is configured to support the busbars 9 .
  • the busbars 9 are arranged in series, and the busbars 9 are respectively connected to the poles of the battery cells.
  • the busbar bracket 10 is disposed between the side plate 2 and the battery module 1 , and the busbars 9 are respectively fixed on the side surface of the busbar bracket 10 away from the battery module 1 .
  • the busbar 9 is fixed on the busbar bracket 10 through hot melt posts 17 .
  • the battery module further includes an FPC support frame 6 , and the FPC support frame 6 is configured to support the FPC collection board 5 .
  • the FPC support frame 6 is arranged between the FPC collection board 5 and the busbar 9 .
  • the FPC support frame 6 in this application plays an insulating role, and the FPC support frame 6 prevents the FPC collection board 5 from contacting the busbar 9 .
  • a heat insulation plate 14 is also provided between the busbar bracket 10 and the side plate 2 .
  • At least two first exhaust holes are opened side by side on the surface of the side plate 2 .
  • At least two second exhaust holes are opened side by side on the surface of the heat insulation board 14 .
  • At least two third exhaust holes are opened side by side on the surface of the busbar bracket 10 .
  • the first exhaust hole, the second exhaust hole and the third exhaust hole correspond to the exhaust valve 15 one-to-one.
  • An insulating film layer 16 is also provided on the surface of the side plate 2 close to the heat insulation plate 14 .
  • the thermal runaway of the battery module is solved by arranging the first exhaust hole, the second exhaust hole and the third exhaust hole, which are sequentially corresponding to the exhaust valve 15 of the battery core.
  • the insulation panels 14 are mica sheets.
  • the heat insulation board 14 in this application uses mica sheets, which can play a role in heat insulation. When a cell in the cell module 1 erupts out of thermal control, it can prevent the backflow of hot gas from affecting other adjacent cells, and at the same time, it can ensure Integrity of side panels 2.
  • the present application provides a battery pack, including the battery module in an embodiment.
  • the battery pack further includes a first liquid cooling plate and a second liquid cooling plate.
  • the first liquid cooling plate and the second liquid cooling plate are respectively adhesively connected to opposite side surfaces of the battery module 1 .
  • a first thermally conductive adhesive layer is provided between the first liquid cooling plate and the battery module 1 .
  • a second thermally conductive adhesive layer is provided between the second liquid cooling plate and the battery module 1 .
  • the battery core of the battery module has poles on both sides, without a bottom case and an upper cover.
  • the upper and lower ends of the battery module 1 are in contact with the liquid cooling plate through a thermally conductive adhesive layer, which improves the cost.
  • the battery module efficiency is optimized, the heat conduction path is optimized, the cooling efficiency is improved, and double-layer cooling is achieved, which effectively reduces the temperature difference of the battery module and helps extend the life of the battery core.
  • the battery module includes a battery module 1, a side plate 2, a first end plate 3, a second end plate 4, a BMU slave board 18, Lead out the copper busbar, FPC collection board 5, FPC support frame 6, aluminum busbar assembly and heat insulation board 14.
  • An aluminum row assembly, an FPC collection plate 5, a heat insulation plate 14 and a side plate 2 are arranged on both sides of the battery module 1 from the inside to the outside.
  • the first end plate 3 and the second end plate 4 are respectively located on both sides of the battery module 1. end.
  • the BMU slave board 18 is integrated on the side surface of the first end plate 3 away from the battery module 1 .
  • the lead-out copper bars include a positive lead-out copper bar 13 and a negative lead-out copper bar 19 respectively provided at both ends of the battery module 1 .
  • a first insulating component 11 is disposed between the battery module 1 and the first end plate 3 .
  • the first insulating component 11 insulates the battery module 1 and the negative lead copper bar 19 .
  • a second insulating component 12 is disposed between the battery module 1 and the second end plate 4 to insulate the battery module 1 and the positive lead copper bar 13 .
  • the FPC collection board 5 includes a bending part 8 and a connecting part 7.
  • the connecting part 7 extends between the battery module 1 and the side plate 2.
  • the bending part 8 passes through the first insulating component 11 and is bent.
  • the fold extends to the outside of the first end plate 3 and is plugged into the BMU slave plate 18 through a plug connector.
  • the first insulating component 11 includes a first insulating plate and a second insulating plate.
  • the first insulating plate and the second insulating plate are respectively disposed on both sides of the bent portion 8 of the FPC collection plate 5 .
  • the bent portion 8 extends out of the first end plate 3
  • the outer surface is also provided with a protective cover.
  • the second insulating component 12 includes a third insulating plate and a fourth insulating plate.
  • the third insulating plate is disposed between the positive lead-out copper bar 13 and the second end plate 4 .
  • the fourth insulating plate is disposed between the positive lead-out copper bar 13 and the second end plate 4 .
  • the fourth insulating plate fully covers the positive lead-out copper bar 13 to ensure electrical clearance and creepage distance.
  • the battery module 1 includes battery cells arranged in sequence.
  • the battery cells have poles on both sides.
  • the temperature collection and voltage collection of the battery module are distributed on both sides.
  • the FPC collection board 5 is connected inside the battery module. .
  • An exhaust valve 15 is respectively provided on the side of the battery core close to the side plate 2 .
  • a fixing portion is provided along the outer edge of the side plate 2 and bent toward the side close to the battery module 1.
  • the upper and lower fixing portions of the side plate 2 are respectively close to the battery module 1 for bonding. Fixed, in the expansion direction of the battery core, it can provide a certain extrusion force and increase the strength and modality of the module.
  • the fixed part at the left end of the side plate 2 and the first end plate 3 are fixed by laser welding, and the fixed part at the right end of the side plate 2 and the second end plate 4 are fixed by laser welding.
  • the aluminum bus assembly includes a busbar bracket 10 and a plurality of busbars 9 corresponding to the battery cells.
  • the busbar bracket 10 is disposed between the side plate 2 and the battery module 1.
  • the busbars 9 are respectively heated by The melting post 17 is fixed on the side surface of the busbar bracket 10 away from the battery module 1 .
  • the busbars 9 are arranged in series, and the busbars 9 are respectively connected to the poles of the battery cells.
  • the FPC support frame 6 is configured to support the FPC collection board 5 and is disposed between the FPC collection board 5 and the bus bar 9 to play an insulating role.
  • the FPC support frame 6 prevents the FPC collection board 5 from contacting the bus bar 9 .
  • first exhaust holes are arranged side by side on the surface of the side plate 2
  • second exhaust holes are arranged side by side on the surface of the heat insulation panel 14
  • third exhaust holes are arranged side by side on the surface of the busbar bracket 10 .
  • the first exhaust hole, the second exhaust hole and the third exhaust hole are in one-to-one correspondence with the exhaust valve 15 of the battery core, which can effectively solve the thermal runaway of the battery module.
  • the heat-insulating plate 14 is a mica sheet, and an insulating film layer 16 is also provided on the surface of the side plate 2 close to the heat-insulating plate 14 .
  • the insulating film layer 16 can melt quickly when thermal runaway is triggered, so that the gas can be discharged quickly. Under normal operating conditions, the insulating film layer 16 can play a sealing role to prevent short circuits.
  • This embodiment provides a battery pack, which includes a first liquid cooling plate, a second liquid cooling plate and a battery module.
  • the structure and working principle of the battery module are the same as those in Embodiment 1, and will not be described again here.
  • the first liquid cooling plate and the second liquid cooling plate are respectively adhesively connected to the upper and lower surfaces of the battery module 1 , and a first thermally conductive adhesive layer is provided between the first liquid cooling plate and the battery module 1 .
  • a second thermally conductive adhesive layer is provided between the second liquid cooling plate and the battery module 1 .
  • the cells of the battery module have poles on both sides.
  • the temperature collection and voltage collection of the battery module are distributed on both sides.
  • the FPC collection board 5 is rotated inside the battery module. connection, and use insulating parts for protection, which is beneficial to the contact between the battery core and the liquid cooling plate, and improves the cooling efficiency of the battery module.
  • the outer edges of the battery module side plates 2 are bent fixing parts, which are bonded and fixed with the battery module 1 and simultaneously welded and fixed with the first end plate 3 and the second end plate 4 at both ends of the battery module 1 , in the direction of cell expansion, it can provide a certain extrusion force and increase the strength and modality of the module.
  • the upper and lower ends of the cell module 1 pass through a thermal conductive adhesive layer and a liquid cooling plate respectively. Contact, improve the grouping rate, optimize the heat conduction path, achieve double-layer cooling, effectively reduce the temperature difference of the battery module, and help extend the life of the battery core.
  • This application provides a battery module and battery pack. There are poles on both sides of the battery core in the battery module, and temperature and voltage collection are distributed on both sides, without affecting the contact between the battery core and the liquid cooling plate.
  • the FPC acquisition board is internally connected to the battery module, which improves the efficiency of the module series and parallel connection.
  • the battery module comes with a BMU slave board, which reduces the space for the module series wiring harness.
  • the FPC acquisition board is directly connected to the BMU slave board, which has Conducive to improving efficiency;
  • the battery pack provided by this application has no bottom case and upper cover.
  • the battery module directly contacts the liquid cooling plate through thermal conductive glue to achieve double-layer cooling, optimize the thermal conduction path, and improve the assembly rate.
  • This embodiment provides a battery module that can not only improve the heat dissipation efficiency of the battery core, but also realize the assembly of BMU and FPC at the battery module level.
  • the battery module includes battery module 1, FPC200 and BMU From the board 18, the battery module 1 includes a plurality of cells.
  • the plurality of cells have a side-out pole structure.
  • the plurality of cells are stacked in sequence.
  • the poles of the cells face the side wall of the battery module.
  • the FPC 200 is arranged on the battery module.
  • the core module 1 has one side of the pole, and a first end plate 3 is provided at the end of the battery module.
  • the BMU slave plate 18 is fixed on the first end plate 3 of the battery module and is located away from the battery module 1 On one side, the BMU slave board 18 is provided with a plug-in interface 410.
  • the FPC 200 extends toward the BMU slave board 18, and an end of the FPC 200 is provided with a plug-in connector 231.
  • the plug-in connector 231 is inserted into the plug-in interface 410.
  • the BMU slave plate 18 and the first end plate 3 are fixedly connected through bolts. In other embodiments, the BMU slave plate 18 and the first end plate 3 can also be fixedly connected through snapping or other methods.
  • the poles of multiple cells in the cell module 1 are set toward the side wall of the battery module, and the FPC 200 is set on the side of the cell module 1 with the poles, making the battery module more applicable.
  • the battery pack structure is based on top cooling or bottom cooling. For example, when the cooling plate in the battery pack is installed on the top or bottom of the battery module, the heat emitted by the battery core can be directly transferred to the cooling plate without passing through the FPC200.
  • the FPC 200 is not required to block the heat transfer, which effectively improves the efficiency of heat transfer between the cooling plate and the battery module, thereby improving the heat dissipation efficiency of the cells in the battery module 1; on the other hand, the battery provided by this embodiment
  • the module fixes the BMU slave plate 18 on the first end plate 3 of the battery module and away from the side of the battery module 1, so that the BMU slave plate 18 is fixedly connected to the first end plate 3 at the battery module level.
  • the assembly of the BMU slave board 18 and the FPC 200 is realized, which eliminates the trouble of assembling the BMU slave board 18 and the FPC 200 in the battery box, greatly simplifies the assembly process of the battery pack, and has the effect of improving production efficiency.
  • the battery module also includes a busbar and a busbar bracket 10.
  • the busbar bracket 10 is fixed to the side of the battery module 1 with the pole (ie, the side of the battery module). wall), the busbar bracket 10 is provided with an escape hole, the busbar is electrically connected to the pole through the escape hole, and the FPC200 is fixed on the busbar bracket 10, thereby achieving the fixation of the FPC200.
  • the busbar can be made of conductive metal materials such as copper or aluminum.
  • the battery module also includes an isolation plate (not shown in the figure).
  • the isolation plate is arranged between the FPC 200 and the busbar.
  • the FPC 200 is provided with a plurality of thermal melting points 211 to isolate Itawa
  • the FPC 200 is fixed on the bus bracket 10 at multiple heat melting points 211 through heat fusion, and the isolation plate is provided to improve the overall structural strength of the FPC 200 .
  • the isolation board is made of insulating material.
  • the isolation board can be an FR-4 isolation board or an FR-5 isolation board.
  • the material selection and preparation process of the isolation board are relatively mature related technologies in this field. , no further details will be given here.
  • the outer surface of FPC200 is covered with an insulating film, thereby realizing the insulation between FPC200 and battery module 1.
  • selecting an isolation board with insulating properties can improve the relationship between FPC200 and battery module 1. 1 insulation effect.
  • the battery module also includes a BMS, and the BMS is connected with the BMU slave board 18 via signals, so that the FPC 200 can transmit the collected temperature data and voltage data to the BMS through the BMU slave board 18 .
  • the battery module also includes an insulating plate.
  • the insulating plate is sandwiched between the first end plate 3 and the battery module 1.
  • the insulating plate is made of insulating material, thereby achieving The insulation effect between the first end plate 3 and the battery module 1.
  • the insulating board can be made of polyvinyl chloride or epoxy resin. The material selection and preparation process of the insulating board are relatively mature related technologies in this field and will not be described again here.
  • the insulating plate includes a first insulating plate 610 and a second insulating plate 620
  • the FPC 200 includes a first FPC section 210 , a second FPC section 220 and a third FPC section 230
  • the first FPC section 210 is arranged on the side wall of the battery module 1 and is fixedly connected to the busbar bracket 10
  • the second FPC section 220 is fixed to the third FPC section 210 .
  • the plug connector 231 is provided at the end of the third FPC section 230, and the plug connector 231 bypasses the first end plate 3 from above and is inserted into the plug port 410.
  • the two end surfaces of the second FPC segment 220 are bonded and fixed with the first insulating plate 610 and the second insulating plate 620 respectively, so as to improve the fixation of the second FPC segment 220 between the first insulating plate 610 and the second insulating plate 620 .
  • Stability between the second insulating plates 620 can also be fixed between the first insulating plate 610 and the second insulating plate 620 in other ways. For example, Fixing is achieved through clamping or hot melting, etc., which are not listed here.
  • the second FPC section 220, the first insulating plate 610 and the second insulating plate 620 can be assembled first, that is, the second FPC section 220 can be assembled first.
  • the two end surfaces are bonded and fixed to the first insulating plate 610 and the second insulating plate 620 respectively, and then the first FPC section 210 and the bus bracket 10 and the third FPC section 230 and the first end plate 3 are assembled.
  • the battery module also includes a protective cover 700.
  • the protective cover 700 is buckled on the BMU slave board 18 and the first end plate 3 to form a protective cavity.
  • the third FPC section 230 is placed in the protection cavity to form a protective effect on the third FPC segment 230 to avoid damage to the third FPC segment 230 due to bumps and other reasons during transportation.
  • the The battery module 1 emits heat and the ambient temperature inside the battery box rises. Under the cooling effect of the cooling plate, the moisture in the high-temperature air inside the battery box will condense to form condensation and adhere to the inner wall of the battery box.
  • FIG. 12 is a schematic structural diagram when the protective cover 700 is not buckled on the BMU slave board 18 and the first end board 3 .
  • the battery module also includes a side plate 2, which is fixed on the side wall of the battery module 1, the first FPC section 210, the busbar bracket 10 and the isolation plate are located between the side plate 2 and the battery module 1.
  • the setting of the side plate 2 realizes the protection of the first FPC section 210 and avoids the problem of collision of the first FPC section 210 during transportation, and the battery The problem of condensation inside the box dripping onto the first FPC section 210.
  • the above-mentioned structure of fixing the second FPC section 220 between the first insulating plate 610 and the second insulating plate 620 avoids the problem of collision of the second FPC section 220 during transportation and condensation in the battery box. Problem dripping onto the second FPC segment 220.
  • the plurality of cells in the cell module 1 have a side-out pole structure.
  • the FPC200 is set on the side of the battery module 1 with the pole.
  • the battery module can control the temperature and voltage of the battery module 1.
  • the voltage control is more precise; after the battery module is installed into the battery box, if condensation occurs in the battery box, the battery module can also prevent condensation from dripping onto the FPC200, which plays a very good role in the insulation effect of the FPC200.
  • the protection function ultimately improves the safety of the battery module.
  • This embodiment also provides a battery pack, which has higher safety and higher production efficiency.
  • the battery pack includes a battery box and the above-mentioned battery module.
  • the battery module is installed in the box.
  • the battery uses the above-mentioned battery module, and the cells in the battery module 1 have high heat dissipation efficiency. , greatly reducing thermal runaway caused by excessive temperature of the battery module 1, effectively improving the safety of the battery pack.
  • the BMU of the battery pack is fixed on the battery module, which enables the assembly of the BMU and FPC outside the battery box, simplifying the assembly process of the battery pack, thereby improving the production efficiency of the battery pack.
  • the battery pack also includes a cooling plate.
  • the cooling plate is installed in the box, and the cooling plate is arranged on at least one of the top and bottom of the battery module 1.
  • the cooling plate and the battery module 1 are bonded by thermally conductive adhesive. , the heat emitted by the battery module 1 can be directly transferred to the cooling plate through the thermal conductive glue to achieve the heat dissipation effect of the batteries in the battery module 1.
  • the poles of the plurality of cells in the cell module are arranged toward the side wall of the battery module, and the FPC is arranged on the side of the cell module with the poles, so that the battery module can be more It is suitable for top cooling or bottom cooling battery pack structures. Specifically, when the cooling plate in the battery pack is installed on the top or bottom of the battery module, the heat emitted by the battery core can be directly transferred to the cooling plate without any cooling.
  • the provided battery module fixes the BMU slave board on the first end plate of the battery module and away from the side of the battery module, so that the BMU slave board is fixedly connected to the first end plate, and the BMU can be realized at the battery module level.
  • the assembly with FPC eliminates the trouble of assembling the BMU and FPC in the battery box, greatly simplifies the assembly process of the battery pack, and has the effect of improving production efficiency.
  • the battery pack provided by the utility model adopts the above-mentioned battery module, and the cells in the battery module have high heat dissipation efficiency, which greatly reduces the problem of thermal runaway caused by excessive temperature of the battery module, and effectively improves the efficiency of thermal runaway. improve the safety of the battery pack.
  • the BMU of the battery pack is fixed on the battery module, which enables the BMU and FPC to be assembled outside the battery box, simplifying the assembly process of the battery pack, thereby improving the production efficiency of the battery pack.

Landscapes

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

Abstract

A battery module and a battery pack. The battery module comprises a battery cell module, side plates, a first end plate, a second end plate, a BMU slave board, a lead-out copper bar and FPC acquisition boards; the side plates are located on two sides of the battery cell module; the first end plate and the second end plate are respectively located at two ends of the battery cell module; the BMU slave board is integrated on the side surface of the first end plate away from the battery cell module; the lead-out copper bar comprises a positive electrode lead-out copper bar and a negative electrode lead-out copper bar which are respectively arranged at two ends of the battery cell module; a first insulation module is provided between the battery cell module and the first end plate; a second insulation module is provided between the battery cell module and the second end plate; the FPC acquisition board comprise bent portions and connection portions; the connection portions extend between the battery cell module and the side plates; the bent portions pass through the first insulation module and then are bent to extend to the outer side of the first end plate to be connected to the BMU slave board.

Description

一种电池模组及电池包A battery module and battery pack
本申请要求在2022年8月9日提交中国专利局、申请号为202210948912.6的中国专利申请的优先权以及2022年11月15日提交中国专利局、申请号为202223039038.9的中国专利申请的优先权，上述申请的全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application filed with the China Patent Office on August 9, 2022, with application number 202210948912.6, and the priority of the Chinese patent application filed with the China Patent Office on November 15, 2022, with application number 202223039038.9, The entire contents of the above-mentioned applications are incorporated by reference into this application.
技术领域Technical field
本申请属于新能源汽车行业技术领域，涉及一种电池模组及电池包。This application belongs to the technical field of the new energy automobile industry and relates to a battery module and a battery pack.
背景技术Background technique
近年来，国内外的车企们纷纷推出以混合动力或纯电动为主的新能源汽车，为新能源汽车的发展开通绿色通道。电池包作为新能源汽车的储能元件，直接影响着新能源汽车的性能。In recent years, domestic and foreign car companies have launched new energy vehicles based on hybrid or pure electric vehicles, opening a green channel for the development of new energy vehicles. As the energy storage component of new energy vehicles, battery packs directly affect the performance of new energy vehicles.
目前，新能源汽车通常要求大容量、高功率电池，当车辆处于不同运行状态时，电池以不同的倍率放电，产生大量的热量，如无法有效散热，则会影响电池的使用寿命和性能，造成安全隐患。但相关技术汽车内电池单元内部排布复杂，空间有限，容易发生短路、过放电，且散热效率低，降低了电池的性能，进而发生热失控。相关技术中，为了实现对电芯温度和电压数据的采集，电池模组通常还设有柔性电路板(Flexible Printed Circuit，FPC)，FPC设置为采集电芯的温度数据和电压数据，对电池模组进行组装时，通常将FPC设置在电芯的顶部且位于电芯与冷却板之间，这种结构设置导致由电芯传向冷却板的部分热量被FPC所阻挡，进而降低了电芯的散热效率。另一方面，通常FPC会将采集到的温度数据和电压数据通过电池管理单元(Battery Management Unit，BMU)传递至电池管理***(Battery Management System，BMS)，而相关技术中，BMU是与电池模组分开设置单独安装在电池箱内的，对电池包进行组装时，需要先 将BMU和电池模组分别装入电池箱内，再对BMU和FPC进行组装，该结构设置增大了BMU与FPC的组装难度，不利于提高生产效率。At present, new energy vehicles usually require large-capacity and high-power batteries. When the vehicle is in different operating states, the battery discharges at different rates, generating a large amount of heat. If the heat cannot be effectively dissipated, the service life and performance of the battery will be affected, causing Security risks. However, in related technologies, the internal arrangement of battery cells in automobiles is complex, the space is limited, short circuits and over-discharges are prone to occur, and the heat dissipation efficiency is low, which reduces the performance of the battery and leads to thermal runaway. In related technologies, in order to collect the temperature and voltage data of the battery core, the battery module is usually equipped with a flexible printed circuit (FPC). The FPC is set to collect the temperature data and voltage data of the battery core, and the battery module When assembling the battery pack, the FPC is usually placed on the top of the battery core and between the battery core and the cooling plate. This structural arrangement causes part of the heat transmitted from the battery core to the cooling plate to be blocked by the FPC, thereby reducing the battery core's durability. Heat dissipation efficiency. On the other hand, the FPC usually transfers the collected temperature data and voltage data to the battery management system (Battery Management System, BMS) through the battery management unit (BMU). In related technologies, the BMU is related to the battery model. The battery packs are installed separately in the battery box. When assembling the battery pack, you need to first The BMU and battery module are installed into the battery box respectively, and then the BMU and FPC are assembled. This structural setting increases the difficulty of assembling the BMU and FPC and is not conducive to improving production efficiency.
因此，对电池包结构进行优化，以提高电池包内部的成组率，强化电池的散热效率是非常重要的。Therefore, it is very important to optimize the battery pack structure to improve the assembly rate inside the battery pack and enhance the heat dissipation efficiency of the battery.
发明内容Contents of the invention
针对相关技术存在的不足，本申请提供电池模组及电池包，将FPC采集板进行电池模组内部转接，减小模组串联线束的空间，有利于提高模组串并联的效率。电池模组不仅能够提高电芯的散热效率，还实现了电池模组层面上BMU与FPC的组装。In view of the shortcomings of related technologies, this application provides battery modules and battery packs, and the FPC acquisition board is connected inside the battery module to reduce the space of the module series wiring harness, which is conducive to improving the efficiency of module series and parallel connection. The battery module can not only improve the heat dissipation efficiency of the battery core, but also realize the assembly of BMU and FPC at the battery module level.
本申请采用以下技术方案：This application adopts the following technical solutions:
第一方面，本申请提供了一种电池模组，所述电池模组包括电芯模块、侧板、第一端板、第二端板、BMU从板、引出铜排与FPC采集板；In a first aspect, this application provides a battery module, which includes a battery module, a side plate, a first end plate, a second end plate, a BMU slave board, a lead-out copper bar and an FPC collection board;
所述侧板位于所述电芯模块的两侧，所述第一端板与所述第二端板分别位于所述电芯模块的两端；The side plates are located on both sides of the battery module, and the first end plate and the second end plate are respectively located at both ends of the battery module;
所述BMU从板集成在所述第一端板远离所述电芯模块的一侧表面；The BMU slave board is integrated on a side surface of the first end plate away from the battery core module;
所述引出铜排包括分别设置于所述电芯模块两端的正极引出铜排与负极引出铜排；The lead-out copper bar includes a positive lead-out copper bar and a negative lead-out copper bar respectively provided at both ends of the battery module;
所述电芯模块与所述第一端板之间设置第一绝缘组件，以对所述电芯模块与所述负极引出铜排进行绝缘；A first insulating component is provided between the battery module and the first end plate to insulate the battery module and the negative lead copper bar;
所述电芯模块与所述第二端板之间设有第二绝缘组件，以对所述电芯模块与所述正极引出铜排进行绝缘；A second insulation component is provided between the battery module and the second end plate to insulate the battery module and the positive lead copper bar;
所述FPC采集板包括弯折部与连接部，所述连接部在所述电芯模块与所述侧板之间延伸，所述弯折部穿过所述第一绝缘组件，并弯折延伸至所述第一端板的外侧连接所述BMU从板。 The FPC collection board includes a bending part and a connecting part. The connecting part extends between the battery module and the side plate. The bending part passes through the first insulating component and bends and extends. Connect the BMU slave board to the outside of the first end board.
第二方面，本申请提供了一种电池包，所述电池包包括第一方面所述电池模组。In a second aspect, the present application provides a battery pack, which includes the battery module described in the first aspect.
第三方面，本申请提供了电池模组，包括：In the third aspect, this application provides a battery module, including:
电芯模块，电芯模块包括多个电芯，多个电芯为侧出极柱结构，多个电芯依次堆叠排列，电芯的极柱朝向电池模组的侧壁；The battery cell module includes a plurality of battery cells, the plurality of battery cells have a side-out pole structure, and the plurality of battery cells are stacked in sequence, with the poles of the battery core facing the side wall of the battery module;
FPC，FPC设置于电芯模块具有极柱的一侧；FPC, FPC is set on the side of the battery module with the pole;
BMU从板，BMU从板固定于电池模组的第一端板上，并位于远离电芯模块的一侧，BMU从板上设有插接口，PFC朝向BMU从板方向延伸，且FPC的端部设有插接件，插接件插设于插接口内。The BMU slave board is fixed on the first end plate of the battery module and is located on the side away from the battery module. The BMU slave board is provided with a plug-in interface. The PFC extends towards the BMU slave board, and the end of the FPC A plug connector is provided at the bottom, and the plug connector is inserted into the plug interface.
本申请提供一种电池包，该电池包具有较高的安全性和较高的生产效率。This application provides a battery pack, which has higher safety and higher production efficiency.
第四方面，本申请提供了电池包，包括箱体以及第三方面的电池模组，电池模组安装于箱体内。In a fourth aspect, the present application provides a battery pack, including a box and a battery module of the third aspect. The battery module is installed in the box.
附图说明Description of drawings
图1为本申请实施例1提供的电池模组的结构示意图；Figure 1 is a schematic structural diagram of a battery module provided in Embodiment 1 of the present application;
图2为本申请实施例1提供的电芯模块、第一端板与第二端板的配合示意图；Figure 2 is a schematic diagram of the cooperation of the battery module, the first end plate and the second end plate provided in Embodiment 1 of the present application;
图3为本申请实施例1提供的FPC采集板的结构示意图；Figure 3 is a schematic structural diagram of the FPC acquisition board provided in Embodiment 1 of the present application;
图4为本申请实施例1提供的正极引出铜排的结构示意图；Figure 4 is a schematic structural diagram of the positive electrode lead copper bar provided in Embodiment 1 of the present application;
图5为本申请实施例1提供的侧板、第一端板与第二端板的配合示意图；Figure 5 is a schematic diagram of the cooperation of the side plate, the first end plate and the second end plate provided in Embodiment 1 of the present application;
图6为本申请实施例1提供的铝排组件的结构示意图；Figure 6 is a schematic structural diagram of the aluminum row assembly provided in Embodiment 1 of the present application;
图7为本申请实施例1提供的排气阀处的结构示意图；Figure 7 is a schematic structural diagram of the exhaust valve provided in Embodiment 1 of the present application;
图8是本申请提供的电池模组未显示侧板和保护盖的***示意图；Figure 8 is an exploded schematic diagram of the battery module provided by this application without showing the side panels and protective cover;
图9是本申请提供的电池模组未显示侧板的结构示意图；Figure 9 is a schematic structural diagram of the battery module provided by this application without showing the side panels;
图10是本申请提供的FPC和汇流排支架的局部结构示意图；Figure 10 is a partial structural schematic diagram of the FPC and bus bracket provided by this application;
图11是本申请提供的FPC、第一绝缘板以及第二绝缘板的结构示意图； Figure 11 is a schematic structural diagram of the FPC, first insulating board and second insulating board provided by this application;
图12是本申请提供的电池模组的结构示意图。Figure 12 is a schematic structural diagram of the battery module provided by this application.
图中：In the picture:
1-电芯模块；2-侧板；3-第一端板；4-第二端板；5-FPC采集板；6-FPC支撑架；7-连接部；8-弯折部；9-汇流排；10-汇流排支架；11-第一绝缘组件；12-第二绝缘组件；13-正极引出铜排；14-隔热板；15-排气阀；16-绝缘膜层；17-热熔柱；18-BMU从板；19-负极引出铜排；200-FPC；210-第一FPC段；211-热熔点；220-第二FPC段；230-第三FPC段；231-插接件；410-插接口；610-第一绝缘板；620-第二绝缘板；700-保护盖；201-固定部。1-Battery module; 2-Side plate; 3-First end plate; 4-Second end plate; 5-FPC collection plate; 6-FPC support frame; 7-Connection part; 8-Bending part; 9- Bus bar; 10-bus bar bracket; 11-first insulating component; 12-second insulating component; 13-positive lead copper bar; 14-heat insulation plate; 15-exhaust valve; 16-insulating film layer; 17- Hot melt column; 18-BMU slave board; 19-negative lead copper bar; 200-FPC; 210-first FPC section; 211-hot melting point; 220-second FPC section; 230-third FPC section; 231-insert Connector; 410-plug interface; 610-first insulating plate; 620-second insulating plate; 700-protective cover; 201-fixing part.
具体实施方式Detailed ways
需要理解的是，在本申请的描述中，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”等仅用于描述，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。It should be understood that in the description of this application, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outside", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, and are not indicated or implied. The devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application. In addition, the terms "first", "second", etc. are used for description only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined by "first," "second," etc. may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise stated, "plurality" means two or more.
需要说明的是，在本申请的描述中，除非另有明确的规定和限定，术语“设置”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体连接；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。对于本领域的普通技术人员而言，可以根据情况理解上述术语在本申请中的含义。It should be noted that in the description of this application, unless otherwise clearly stated and limited, the terms "set", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the meanings of the above terms in this application can be understood according to the circumstances.
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。下面结合附图并通过实施方式来说明本申请的技术方案。In this application, unless otherwise explicitly stated and limited, the term "above" or "below" a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. No Not in direct contact but through other characteristic contacts between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature. The technical solution of the present application will be described below with reference to the accompanying drawings and through implementation modes.
在一个实施方式中，本申请提供了一种电池模组，包括电芯模块1、侧板2、第一端板3、第二端板4、BMU从板18、引出铜排与FPC采集板5。In one embodiment, the present application provides a battery module, including a battery module 1, a side plate 2, a first end plate 3, a second end plate 4, a BMU slave board 18, a lead copper bar and an FPC collection board 5.
侧板2位于电芯模块1的两侧，第一端板3与第二端板4分别位于电芯模块1的两端。BMU从板18集成在第一端板3远离电芯模块1的一侧表面。The side plates 2 are located on both sides of the battery module 1 , and the first end plate 3 and the second end plate 4 are respectively located at both ends of the battery module 1 . The BMU slave board 18 is integrated on the side surface of the first end plate 3 away from the battery module 1 .
引出铜排包括正极引出铜排13与负极引出铜排19，正极引出铜排13与负极引出铜排19分别设置于电芯模块1的两端。电芯模块1与第一端板3之间设置第一绝缘组件11，以对电芯模块1与负极引出铜排19进行绝缘。电芯模块1与第二端板4之间设置第二绝缘组件12，以对电芯模块1与正极引出铜排13进行绝缘。The lead-out copper bar includes a positive lead-out copper bar 13 and a negative lead-out copper bar 19 . The positive lead-out copper bar 13 and the negative lead-out copper bar 19 are respectively disposed at both ends of the battery module 1 . A first insulating component 11 is disposed between the battery module 1 and the first end plate 3 to insulate the battery module 1 and the negative lead copper bar 19 . A second insulating component 12 is disposed between the battery module 1 and the second end plate 4 to insulate the battery module 1 and the positive lead copper bar 13 .
FPC采集板5包括弯折部8与连接部7，连接部7在电芯模块1与侧板2之间延伸，弯折部8穿过第一绝缘组件11，并弯折延伸至第一端板3的外侧连接BMU从板18。The FPC collection board 5 includes a bending part 8 and a connecting part 7. The connecting part 7 extends between the battery module 1 and the side plate 2. The bending part 8 passes through the first insulating component 11 and bends and extends to the first end. The outside of board 3 is connected to BMU slave board 18 .
本申请中FPC采集板5由电池模组的内部进行转接，第一绝缘组件11能够避免FPC采集板5与第一端板3接触。本申请中正极引出铜排13设置于第二绝缘组件12内，当电芯模块1内的电芯为奇数串时，电芯模块1的正负极引出在对角位置，为方便电池包(PACK)连接，将引出铜排在电池模组内部进行转接，能够使正负极引出在同一侧，便于电池模组的串并联。In this application, the FPC collection board 5 is connected inside the battery module, and the first insulation component 11 can prevent the FPC collection board 5 from contacting the first end plate 3 . In this application, the positive electrode lead-out copper bar 13 is arranged in the second insulating component 12. When the battery cells in the battery cell module 1 are an odd number of strings, the positive and negative electrodes of the battery cell module 1 are led out at diagonal positions. In order to facilitate the battery pack ( PACK) connection, transfer the lead copper row inside the battery module, so that the positive and negative poles can be led out on the same side, which facilitates the series and parallel connection of the battery modules.
本申请中将BMU从板18集成在电池模组上，在PACK里面串联时，能够节省线束的空间，主要是由于带有BMU从板18的电池模组，在低压连接时，只需两根较细的线，同时，电池模组的电压采集和温度采集直接通过FPC采集板5与电池模组上的BMU从板18连接，便于PACK内部的连接。 In this application, the BMU slave board 18 is integrated on the battery module. When connected in series in the PACK, it can save the space of the wiring harness. This is mainly because the battery module with the BMU slave board 18 only needs two wires when connected at low voltage. At the same time, the voltage acquisition and temperature acquisition of the battery module are directly connected to the BMU slave board 18 on the battery module through the FPC acquisition board 5, which facilitates the connection inside the PACK.
在一些实施方式中，电芯模块1包括依次排列设置的至少两个电芯，沿电芯长度方向的两侧分别独立地设置有极柱。In some embodiments, the battery core module 1 includes at least two battery cores arranged in sequence, and poles are independently provided on both sides along the length direction of the battery cores.
本申请中的电芯均为两侧出极柱，电池模组的温度采集和电压采集分布在两侧，通过在电池模组的内部进行FPC采集板5的转接，并利用绝缘件进行防护，能够避免影响电芯与液冷板的接触，提高电池模组的冷却效率。The batteries in this application all have poles on both sides. The temperature collection and voltage collection of the battery module are distributed on both sides. The FPC collection board 5 is connected inside the battery module and protected by insulating parts. , can avoid affecting the contact between the battery core and the liquid cooling plate, and improve the cooling efficiency of the battery module.
在一些实施方式中，电芯靠近侧板2的一侧分别设置有排气阀15。In some embodiments, exhaust valves 15 are respectively provided on one side of the battery core close to the side plate 2 .
在一些实施方式中，沿侧板2的外缘设置有向靠近电芯模块1的一侧弯折的固定部。固定部设置为分别与第一端板3和第二端板4焊接固定。In some embodiments, a fixing portion bent toward the side close to the battery module 1 is provided along the outer edge of the side plate 2 . The fixing portion is configured to be welded and fixed to the first end plate 3 and the second end plate 4 respectively.
本申请中侧板2的外缘均为弯折的固定部，侧板2的横截面呈“C”字结构。侧板2的上端与下端的固定部分别靠近电芯模块1，进行粘结固定，在电芯膨胀方向上，能够提供一定的挤压力，并增加模组的强度和模态。侧板2的左端的固定部与第一端板3通过激光焊接固定，侧板2的右端的固定部与第二端板4通过激光焊接固定，无需底壳或上盖，有利于实现双层液冷。In this application, the outer edges of the side plates 2 are all bent fixing parts, and the cross section of the side plates 2 has a "C" shape structure. The upper and lower fixed parts of the side plate 2 are respectively close to the battery module 1 and are bonded and fixed to provide a certain extrusion force in the direction of battery expansion and increase the strength and modality of the module. The fixed part at the left end of the side plate 2 and the first end plate 3 are fixed by laser welding, and the fixed part at the right end of the side plate 2 and the second end plate 4 are fixed by laser welding. There is no need for a bottom shell or an upper cover, which is conducive to realizing a double layer. Liquid cooled.
在一些实施方式中，第一绝缘组件11包括第一绝缘板与第二绝缘板，第一绝缘板与第二绝缘板分别设置于FPC采集板5的弯折部8的两侧表面。弯折部8伸出第一端板3的外表面还设置有保护盖。In some embodiments, the first insulating component 11 includes a first insulating plate and a second insulating plate. The first insulating plate and the second insulating plate are respectively disposed on both sides of the bent portion 8 of the FPC collection plate 5 . The outer surface of the bent portion 8 extending out of the first end plate 3 is also provided with a protective cover.
本申请中的FPC采集板5直接通过插接件与BMU从板18进行插接，通过保护盖进行绝缘防护，防止在安装过程中，对FPC采集板5造成损坏，且能够预防凝露对绝缘的影响。The FPC acquisition board 5 in this application is directly plugged into the BMU slave board 18 through a connector, and is insulated through a protective cover to prevent damage to the FPC acquisition board 5 during the installation process, and to prevent condensation from damaging the insulation. Impact.
在一些实施方式中，第二绝缘组件12包括第三绝缘板与第四绝缘板。第三绝缘板设置于正极引出铜排13与第二端板4之间，第四绝缘板设置于正极引出铜排13与电芯模块1之间。In some embodiments, the second insulation component 12 includes a third insulation plate and a fourth insulation plate. The third insulating plate is disposed between the positive lead copper bar 13 and the second end plate 4 , and the fourth insulating plate is disposed between the positive lead copper bar 13 and the battery module 1 .
本申请中的正极引出铜排13设置于第三绝缘板与第四绝缘板之间，形成“三明治”结构，避免正极引出铜排13与电芯模块1接触，第三绝缘板与第二端板4进行粘接固定，第四绝缘板将正极引出铜排13全覆盖，保证电气间隙和爬电距离。 The positive lead copper bar 13 in this application is disposed between the third insulating plate and the fourth insulating plate, forming a "sandwich" structure to prevent the positive lead copper bar 13 from contacting the battery module 1, and the third insulating plate and the second terminal The plate 4 is bonded and fixed, and the fourth insulating plate fully covers the positive lead copper bar 13 to ensure the electrical clearance and creepage distance.
在一些实施方式中，电池模组还包括位于电芯模块1两侧的铝排组件。铝排组件包括汇流排支架10与至少两个汇流排9，汇流排支架10设置为支撑汇流排9。汇流排9之间依次串联设置，汇流排9分别连接电芯的极柱。In some embodiments, the battery module further includes aluminum row assemblies located on both sides of the cell module 1 . The aluminum bus assembly includes a busbar bracket 10 and at least two busbars 9 . The busbar bracket 10 is configured to support the busbars 9 . The busbars 9 are arranged in series, and the busbars 9 are respectively connected to the poles of the battery cells.
汇流排支架10设置于侧板2与电芯模块1之间，汇流排9分别固定于汇流排支架10远离电芯模块1的一侧表面。汇流排9通过热熔柱17固定在汇流排支架10上。The busbar bracket 10 is disposed between the side plate 2 and the battery module 1 , and the busbars 9 are respectively fixed on the side surface of the busbar bracket 10 away from the battery module 1 . The busbar 9 is fixed on the busbar bracket 10 through hot melt posts 17 .
本申请由于电芯的极柱设置在电芯的两侧，在焊接汇流排9时，需要对汇流排9进行定位，将汇流排9热熔在汇流排支架10上，汇流排支架10再与电芯进行胶接固定，汇流排支架10起到绝缘的作用。In this application, since the poles of the battery core are arranged on both sides of the battery core, when welding the bus bar 9, it is necessary to position the bus bar 9, hot-melt the bus bar 9 on the bus bar bracket 10, and then the bus bar bracket 10 is connected with the bus bar bracket 10. The battery cores are glued and fixed, and the busbar bracket 10 plays an insulating role.
在一些实施方式中，电池模组还包括FPC支撑架6，FPC支撑架6设置为支撑FPC采集板5。FPC支撑架6设置于FPC采集板5与汇流排9之间。本申请中的FPC支撑架6起到绝缘作用，FPC支撑架6防止FPC采集板5与汇流排9接触。In some embodiments, the battery module further includes an FPC support frame 6 , and the FPC support frame 6 is configured to support the FPC collection board 5 . The FPC support frame 6 is arranged between the FPC collection board 5 and the busbar 9 . The FPC support frame 6 in this application plays an insulating role, and the FPC support frame 6 prevents the FPC collection board 5 from contacting the busbar 9 .
在一些实施方式中，汇流排支架10与侧板2之间还设置有隔热板14。侧板2的表面并排开设至少两个第一排气孔。隔热板14的表面并排开设至少两个第二排气孔。汇流排支架10的表面并排开设至少两个第三排气孔。第一排气孔、第二排气孔与第三排气孔与排气阀15一一对应。侧板2靠近隔热板14一侧的表面还设置有绝缘膜层16。In some embodiments, a heat insulation plate 14 is also provided between the busbar bracket 10 and the side plate 2 . At least two first exhaust holes are opened side by side on the surface of the side plate 2 . At least two second exhaust holes are opened side by side on the surface of the heat insulation board 14 . At least two third exhaust holes are opened side by side on the surface of the busbar bracket 10 . The first exhaust hole, the second exhaust hole and the third exhaust hole correspond to the exhaust valve 15 one-to-one. An insulating film layer 16 is also provided on the surface of the side plate 2 close to the heat insulation plate 14 .
本申请中通过设置第一排气孔、第二排气孔与第三排气孔，并依次与电芯的排气阀15相对应，解决了电池模组的热失控，同时侧板2上贴有绝缘膜层16，该绝缘膜层16在热失控触发时能够快速熔化，以便气体快速排出，在正常工作状态下，绝缘膜层16可以起到密封的作用，防止异物进入电池模组，引起短路。In this application, the thermal runaway of the battery module is solved by arranging the first exhaust hole, the second exhaust hole and the third exhaust hole, which are sequentially corresponding to the exhaust valve 15 of the battery core. There is an insulating film layer 16 attached, which can melt quickly when thermal runaway is triggered, so that the gas can be discharged quickly. Under normal working conditions, the insulating film layer 16 can play a sealing role to prevent foreign matter from entering the battery module. cause a short circuit.
在一些实施方式中，隔热板14为云母片。本申请中的隔热板14采用云母片，能够起到隔热的作用，当电芯模块1中的一个电芯热失控喷发时，防止热气回流影响其他相邻的电芯，同时，能够保证侧板2的完整性。 In some embodiments, the insulation panels 14 are mica sheets. The heat insulation board 14 in this application uses mica sheets, which can play a role in heat insulation. When a cell in the cell module 1 erupts out of thermal control, it can prevent the backflow of hot gas from affecting other adjacent cells, and at the same time, it can ensure Integrity of side panels 2.
在另一个实施方式中，本申请提供了一种电池包，包括一个实施方式中的电池模组。In another embodiment, the present application provides a battery pack, including the battery module in an embodiment.
在一些实施方式中，电池包还包括第一液冷板与第二液冷板，第一液冷板与第二液冷板分别胶黏连接电芯模块1的相对的两侧表面。第一液冷板与电芯模块1之间设置第一导热胶层。第二液冷板与电芯模块1之间设置第二导热胶层。In some embodiments, the battery pack further includes a first liquid cooling plate and a second liquid cooling plate. The first liquid cooling plate and the second liquid cooling plate are respectively adhesively connected to opposite side surfaces of the battery module 1 . A first thermally conductive adhesive layer is provided between the first liquid cooling plate and the battery module 1 . A second thermally conductive adhesive layer is provided between the second liquid cooling plate and the battery module 1 .
本申请提供的电池包中，电池模组的电芯为两侧出极柱，无底壳和上盖，电芯模块1的上下两端分别通过导热胶层与液冷板接触，提升了成组率，优化了导热路径，提高了冷却效率，实现双层冷却，有效降低电池模组的温差，有利于延长电芯的寿命。In the battery pack provided by this application, the battery core of the battery module has poles on both sides, without a bottom case and an upper cover. The upper and lower ends of the battery module 1 are in contact with the liquid cooling plate through a thermally conductive adhesive layer, which improves the cost. The battery module efficiency is optimized, the heat conduction path is optimized, the cooling efficiency is improved, and double-layer cooling is achieved, which effectively reduces the temperature difference of the battery module and helps extend the life of the battery core.
实施例1Example 1
本实施例提供了一种电池模组，如图1和图2所示，电池模组包括电芯模块1、侧板2、第一端板3、第二端板4、BMU从板18、引出铜排、FPC采集板5、FPC支撑架6、铝排组件与隔热板14。电芯模块1的两侧由内至外依次设置铝排组件、FPC采集板5、隔热板14与侧板2，第一端板3与第二端板4分别位于电芯模块1的两端。如图2所示，BMU从板18集成在第一端板3远离电芯模块1的一侧表面。This embodiment provides a battery module, as shown in Figures 1 and 2. The battery module includes a battery module 1, a side plate 2, a first end plate 3, a second end plate 4, a BMU slave board 18, Lead out the copper busbar, FPC collection board 5, FPC support frame 6, aluminum busbar assembly and heat insulation board 14. An aluminum row assembly, an FPC collection plate 5, a heat insulation plate 14 and a side plate 2 are arranged on both sides of the battery module 1 from the inside to the outside. The first end plate 3 and the second end plate 4 are respectively located on both sides of the battery module 1. end. As shown in FIG. 2 , the BMU slave board 18 is integrated on the side surface of the first end plate 3 away from the battery module 1 .
引出铜排包括分别设置于电芯模块1两端的正极引出铜排13与负极引出铜排19。电芯模块1与第一端板3之间设置第一绝缘组件11，第一绝缘组件11对电芯模块1与负极引出铜排19进行绝缘。电芯模块1与第二端板4之间设置第二绝缘组件12，以对电芯模块1与正极引出铜排13进行绝缘。The lead-out copper bars include a positive lead-out copper bar 13 and a negative lead-out copper bar 19 respectively provided at both ends of the battery module 1 . A first insulating component 11 is disposed between the battery module 1 and the first end plate 3 . The first insulating component 11 insulates the battery module 1 and the negative lead copper bar 19 . A second insulating component 12 is disposed between the battery module 1 and the second end plate 4 to insulate the battery module 1 and the positive lead copper bar 13 .
如图3所示，FPC采集板5包括弯折部8与连接部7，连接部7在电芯模块1与侧板2之间延伸，弯折部8穿过第一绝缘组件11，并弯折延伸至第一端板3的外侧，并通过插接件与BMU从板18进行插接。As shown in Figure 3, the FPC collection board 5 includes a bending part 8 and a connecting part 7. The connecting part 7 extends between the battery module 1 and the side plate 2. The bending part 8 passes through the first insulating component 11 and is bent. The fold extends to the outside of the first end plate 3 and is plugged into the BMU slave plate 18 through a plug connector.
第一绝缘组件11包括第一绝缘板与第二绝缘板，第一绝缘板与第二绝缘板分别设置于FPC采集板5的弯折部8的两侧表面。弯折部8伸出第一端板3的 外表面还设置有保护盖。如图4所示，第二绝缘组件12包括第三绝缘板与第四绝缘板，第三绝缘板设置于正极引出铜排13与第二端板4之间，第四绝缘板设置于正极引出铜排13与电芯模块1之间，第四绝缘板将正极引出铜排13全覆盖，保证电气间隙和爬电距离。The first insulating component 11 includes a first insulating plate and a second insulating plate. The first insulating plate and the second insulating plate are respectively disposed on both sides of the bent portion 8 of the FPC collection plate 5 . The bent portion 8 extends out of the first end plate 3 The outer surface is also provided with a protective cover. As shown in FIG. 4 , the second insulating component 12 includes a third insulating plate and a fourth insulating plate. The third insulating plate is disposed between the positive lead-out copper bar 13 and the second end plate 4 . The fourth insulating plate is disposed between the positive lead-out copper bar 13 and the second end plate 4 . Between the copper bar 13 and the battery module 1, the fourth insulating plate fully covers the positive lead-out copper bar 13 to ensure electrical clearance and creepage distance.
电芯模块1包括依次排列设置的电芯，电芯为两侧出极柱，电池模组的温度采集和电压采集分布在两侧，通过在电池模组的内部进行FPC采集板5的转接。电芯靠近侧板2的一侧分别设置有排气阀15。The battery module 1 includes battery cells arranged in sequence. The battery cells have poles on both sides. The temperature collection and voltage collection of the battery module are distributed on both sides. The FPC collection board 5 is connected inside the battery module. . An exhaust valve 15 is respectively provided on the side of the battery core close to the side plate 2 .
如图5所示，沿侧板2的外缘设置有向靠近电芯模块1的一侧弯折的固定部，侧板2的上端与下端的固定部分别靠近电芯模块1，进行粘结固定，在电芯膨胀方向上，能够提供一定的挤压力，并增加模组的强度和模态。侧板2的左端的固定部与第一端板3通过激光焊接固定，侧板2的右端的固定部与第二端板4通过激光焊接固定。As shown in Figure 5, a fixing portion is provided along the outer edge of the side plate 2 and bent toward the side close to the battery module 1. The upper and lower fixing portions of the side plate 2 are respectively close to the battery module 1 for bonding. Fixed, in the expansion direction of the battery core, it can provide a certain extrusion force and increase the strength and modality of the module. The fixed part at the left end of the side plate 2 and the first end plate 3 are fixed by laser welding, and the fixed part at the right end of the side plate 2 and the second end plate 4 are fixed by laser welding.
如图6所示，铝排组件包括汇流排支架10，以及与电芯对应的多个汇流排9，汇流排支架10设置于侧板2与电芯模块1之间，汇流排9分别通过热熔柱17固定于汇流排支架10远离电芯模块1的一侧表面。汇流排9之间依次串联设置，汇流排9分别连接电芯的极柱。As shown in Figure 6, the aluminum bus assembly includes a busbar bracket 10 and a plurality of busbars 9 corresponding to the battery cells. The busbar bracket 10 is disposed between the side plate 2 and the battery module 1. The busbars 9 are respectively heated by The melting post 17 is fixed on the side surface of the busbar bracket 10 away from the battery module 1 . The busbars 9 are arranged in series, and the busbars 9 are respectively connected to the poles of the battery cells.
FPC支撑架6设置为支撑FPC采集板5，设置于FPC采集板5与汇流排9之间，起到绝缘作用，FPC支撑架6防止FPC采集板5与汇流排9接触。The FPC support frame 6 is configured to support the FPC collection board 5 and is disposed between the FPC collection board 5 and the bus bar 9 to play an insulating role. The FPC support frame 6 prevents the FPC collection board 5 from contacting the bus bar 9 .
如图7所示，侧板2的表面并排开设第一排气孔，隔热板14的表面并排开设第二排气孔，汇流排支架10的表面并排开设第三排气孔。第一排气孔、第二排气孔与第三排气孔与电芯的排气阀15一一对应，能够有效解决电池模组的热失控。As shown in FIG. 7 , first exhaust holes are arranged side by side on the surface of the side plate 2 , second exhaust holes are arranged side by side on the surface of the heat insulation panel 14 , and third exhaust holes are arranged side by side on the surface of the busbar bracket 10 . The first exhaust hole, the second exhaust hole and the third exhaust hole are in one-to-one correspondence with the exhaust valve 15 of the battery core, which can effectively solve the thermal runaway of the battery module.
隔热板14为云母片，侧板2靠近隔热板14一侧的表面还设置有绝缘膜层16。绝缘膜层16在热失控触发时能够快速熔化，以便气体快速排出，在正常工作状态下，绝缘膜层16可以起到密封的作用，防止引起短路。The heat-insulating plate 14 is a mica sheet, and an insulating film layer 16 is also provided on the surface of the side plate 2 close to the heat-insulating plate 14 . The insulating film layer 16 can melt quickly when thermal runaway is triggered, so that the gas can be discharged quickly. Under normal operating conditions, the insulating film layer 16 can play a sealing role to prevent short circuits.
实施例2 Example 2
本实施例提供了一种电池包，包括第一液冷板、第二液冷板与电池模组，电池模组的结构与工作原理与实施例1相同，在此不再赘述。This embodiment provides a battery pack, which includes a first liquid cooling plate, a second liquid cooling plate and a battery module. The structure and working principle of the battery module are the same as those in Embodiment 1, and will not be described again here.
第一液冷板与第二液冷板分别胶黏连接电芯模块1的上下两侧的表面，第一液冷板与电芯模块1之间设置第一导热胶层。第二液冷板与电芯模块1之间设置第二导热胶层。The first liquid cooling plate and the second liquid cooling plate are respectively adhesively connected to the upper and lower surfaces of the battery module 1 , and a first thermally conductive adhesive layer is provided between the first liquid cooling plate and the battery module 1 . A second thermally conductive adhesive layer is provided between the second liquid cooling plate and the battery module 1 .
本实施例提供的电池包中，电池模组的电芯为两侧出极柱，电池模组的温度采集和电压采集分布在两侧，通过在电池模组的内部进行FPC采集板5的转接，并利用绝缘件进行防护，有利于电芯与液冷板的接触，提高电池模组的冷却效率。In the battery pack provided by this embodiment, the cells of the battery module have poles on both sides. The temperature collection and voltage collection of the battery module are distributed on both sides. The FPC collection board 5 is rotated inside the battery module. connection, and use insulating parts for protection, which is beneficial to the contact between the battery core and the liquid cooling plate, and improves the cooling efficiency of the battery module.
另外，电池模组侧板2的外缘均为弯折的固定部，与电芯模块1进行粘结固定，同时与电芯模块1两端的第一端板3与第二端板4焊接固定，在电芯膨胀方向上，能够提供一定的挤压力，并增加模组的强度和模态，无需底壳和上盖，电芯模块1的上下两端分别通过导热胶层与液冷板接触，提升了成组率，优化了导热路径，实现双层冷却，有效降低电池模组的温差，有利于延长电芯的寿命。In addition, the outer edges of the battery module side plates 2 are bent fixing parts, which are bonded and fixed with the battery module 1 and simultaneously welded and fixed with the first end plate 3 and the second end plate 4 at both ends of the battery module 1 , in the direction of cell expansion, it can provide a certain extrusion force and increase the strength and modality of the module. There is no need for a bottom shell and an upper cover. The upper and lower ends of the cell module 1 pass through a thermal conductive adhesive layer and a liquid cooling plate respectively. Contact, improve the grouping rate, optimize the heat conduction path, achieve double-layer cooling, effectively reduce the temperature difference of the battery module, and help extend the life of the battery core.
与相关技术相比，本申请的效果为：Compared with related technologies, the effects of this application are:
(1)本申请提供的一种电池模组及电池包，电池模组中的电芯两侧出极柱，温度和电压的采集分布在两侧，不影响电芯与液冷板的接触，将FPC采集板进行电池模组内部转接，提高了模组串并联的效率，电池模组自带BMU从板，减小模组串联线束的空间，FPC采集板直接与BMU从板连接，有利于提升效率；(1) This application provides a battery module and battery pack. There are poles on both sides of the battery core in the battery module, and temperature and voltage collection are distributed on both sides, without affecting the contact between the battery core and the liquid cooling plate. The FPC acquisition board is internally connected to the battery module, which improves the efficiency of the module series and parallel connection. The battery module comes with a BMU slave board, which reduces the space for the module series wiring harness. The FPC acquisition board is directly connected to the BMU slave board, which has Conducive to improving efficiency;
(2)本申请提供的电池包，无底壳和上盖，电池模组直接通过导热胶与液冷板接触，实现双层冷却，优化了导热路径，提升了成组率。(2) The battery pack provided by this application has no bottom case and upper cover. The battery module directly contacts the liquid cooling plate through thermal conductive glue to achieve double-layer cooling, optimize the thermal conduction path, and improve the assembly rate.
本实施例提供一种电池模组，该电池模组不仅能够提高电芯的散热效率，还实现了电池模组层面上BMU与FPC的组装。This embodiment provides a battery module that can not only improve the heat dissipation efficiency of the battery core, but also realize the assembly of BMU and FPC at the battery module level.
示例性地，如图8所示，该电池模组包括电芯模块1、FPC200以及BMU 从板18，电芯模块1包括多个电芯，多个电芯为侧出极柱结构，多个电芯依次堆叠排列，电芯的极柱朝向电池模组的侧壁，FPC200设置于电芯模块1具有极柱的一侧，在电池模组的端部设置有第一端板3，BMU从板18固定在电池模组的第一端板3上，并位于远离电芯模块1的一侧，BMU从板18上设有插接口410，FPC200朝向BMU从板18方向延伸，且FPC200的端部设有插接件231，插接件231插设在插接口410内。本实施例中，BMU从板18与第一端板3通过螺栓固定连接，在其他实施方案中，BMU从板18与第一端板3也可以通过卡接或者其他方式实现固定连接。Illustratively, as shown in Figure 8, the battery module includes battery module 1, FPC200 and BMU From the board 18, the battery module 1 includes a plurality of cells. The plurality of cells have a side-out pole structure. The plurality of cells are stacked in sequence. The poles of the cells face the side wall of the battery module. The FPC 200 is arranged on the battery module. The core module 1 has one side of the pole, and a first end plate 3 is provided at the end of the battery module. The BMU slave plate 18 is fixed on the first end plate 3 of the battery module and is located away from the battery module 1 On one side, the BMU slave board 18 is provided with a plug-in interface 410. The FPC 200 extends toward the BMU slave board 18, and an end of the FPC 200 is provided with a plug-in connector 231. The plug-in connector 231 is inserted into the plug-in interface 410. In this embodiment, the BMU slave plate 18 and the first end plate 3 are fixedly connected through bolts. In other embodiments, the BMU slave plate 18 and the first end plate 3 can also be fixedly connected through snapping or other methods.
该电池模组，其电芯模块1中的多个电芯的极柱朝向电池模组的侧壁设置，FPC200设置在电芯模块1具有极柱的一侧，使得该电池模组能够更加适用于顶部冷却或者底部冷却的电池包结构，示例性的，将电池包中的冷却板安装在电池模组的顶部或者底部时，电芯发出的热量能够直接传递至冷却板而无需再通过FPC200，省去了FPC200对传递热量的阻挡，有效提高了冷却板与电池模组之间热量传递的效率，进而提高了电芯模块1中电芯的散热效率；另一方面，本实施例提供的电池模组将BMU从板18固定在电池模组的第一端板3上且远离电芯模块1的一侧，使得BMU从板18与第一端板3固定连接，在电池模组层面即可实现BMU从板18与FPC200的组装，省去了在电池箱内组装BMU从板18和FPC200的麻烦，大大简化了电池包的组装工艺，具有提高生产效率的效果。In this battery module, the poles of multiple cells in the cell module 1 are set toward the side wall of the battery module, and the FPC 200 is set on the side of the cell module 1 with the poles, making the battery module more applicable. The battery pack structure is based on top cooling or bottom cooling. For example, when the cooling plate in the battery pack is installed on the top or bottom of the battery module, the heat emitted by the battery core can be directly transferred to the cooling plate without passing through the FPC200. The FPC 200 is not required to block the heat transfer, which effectively improves the efficiency of heat transfer between the cooling plate and the battery module, thereby improving the heat dissipation efficiency of the cells in the battery module 1; on the other hand, the battery provided by this embodiment The module fixes the BMU slave plate 18 on the first end plate 3 of the battery module and away from the side of the battery module 1, so that the BMU slave plate 18 is fixedly connected to the first end plate 3 at the battery module level. The assembly of the BMU slave board 18 and the FPC 200 is realized, which eliminates the trouble of assembling the BMU slave board 18 and the FPC 200 in the battery box, greatly simplifies the assembly process of the battery pack, and has the effect of improving production efficiency.
可选地，如图8和图9所示，电池模组还包括汇流排和汇流排支架10，汇流排支架10固定于电芯模块1具有极柱的一侧(即，电池模组的侧壁上)，汇流排支架10上设有避让孔，汇流排通过避让孔与极柱电连接，FPC200固定于汇流排支架10上，由此实现FPC200的固定。可选地，汇流排可以选用铜质材料或者铝质材料等具有导电性能的金属材料制成。Optionally, as shown in Figures 8 and 9, the battery module also includes a busbar and a busbar bracket 10. The busbar bracket 10 is fixed to the side of the battery module 1 with the pole (ie, the side of the battery module). wall), the busbar bracket 10 is provided with an escape hole, the busbar is electrically connected to the pole through the escape hole, and the FPC200 is fixed on the busbar bracket 10, thereby achieving the fixation of the FPC200. Optionally, the busbar can be made of conductive metal materials such as copper or aluminum.
可选地，如图8和图10所示，电池模组还包括隔离板(图中未示出)，隔离板设置在FPC200与汇流排之间，FPC200上设有多个热熔点211，隔离板和 FPC200通过热熔的方式在多个热熔点211处固定在汇流排支架10上，隔离板设置为提高FPC200整体结构强度。Optionally, as shown in Figures 8 and 10, the battery module also includes an isolation plate (not shown in the figure). The isolation plate is arranged between the FPC 200 and the busbar. The FPC 200 is provided with a plurality of thermal melting points 211 to isolate Itawa The FPC 200 is fixed on the bus bracket 10 at multiple heat melting points 211 through heat fusion, and the isolation plate is provided to improve the overall structural strength of the FPC 200 .
可选地，隔离板采用绝缘材料制成，示例性地，隔离板可以选用FR-4隔离板或FR-5隔离板等，隔离板的材料选择和制备工艺均为本领域较为成熟的相关技术，此处不再赘述，本实施例中，选择具有绝缘性能的隔离板即可。本实施例中，FPC200的外表面上覆盖有一层绝缘膜，由此实现FPC200与电芯模块1之间的绝缘，在此基础上，选用具有绝缘性能的隔离板，能够提高FPC200与电芯模块1之间的绝缘效果。Optionally, the isolation board is made of insulating material. For example, the isolation board can be an FR-4 isolation board or an FR-5 isolation board. The material selection and preparation process of the isolation board are relatively mature related technologies in this field. , no further details will be given here. In this embodiment, it is sufficient to select an isolation board with insulation properties. In this embodiment, the outer surface of FPC200 is covered with an insulating film, thereby realizing the insulation between FPC200 and battery module 1. On this basis, selecting an isolation board with insulating properties can improve the relationship between FPC200 and battery module 1. 1 insulation effect.
可选地，电池模组还包括BMS，BMS与BMU从板18信号连接，以实现FPC200将采集到的温度数据和电压数据通过BMU从板18传递给BMS。Optionally, the battery module also includes a BMS, and the BMS is connected with the BMU slave board 18 via signals, so that the FPC 200 can transmit the collected temperature data and voltage data to the BMS through the BMU slave board 18 .
可选地，如图8至图12所示，电池模组还包括绝缘板，绝缘板夹设于第一端板3与电芯模块1之间，绝缘板采用绝缘材料制成，由此实现第一端板3与电芯模块1之间的绝缘效果。可选地，绝缘板可以选用聚氯乙烯或者环氧树脂等材料制成，绝缘板的材料选择和制备工艺均为本领域较为成熟的相关技术，此处不再赘述。Optionally, as shown in Figures 8 to 12, the battery module also includes an insulating plate. The insulating plate is sandwiched between the first end plate 3 and the battery module 1. The insulating plate is made of insulating material, thereby achieving The insulation effect between the first end plate 3 and the battery module 1. Optionally, the insulating board can be made of polyvinyl chloride or epoxy resin. The material selection and preparation process of the insulating board are relatively mature related technologies in this field and will not be described again here.
可选地，如图8至图12所示，绝缘板包括第一绝缘板610和第二绝缘板620，FPC200包括第一FPC段210、第二FPC段220以及第三FPC段230，第一FPC段210、第二FPC段220以及第三FPC段230依次连接，第一FPC段210设置于电芯模块1的侧壁上并与汇流排支架10固定连接，第二FPC段220固定于第一绝缘板610与第二绝缘板620之间，插接件231设置于第三FPC段230的端部，且插接件231由上方绕过第一端板3插设在插接口410内，由此实现了FPC200固定在电芯模块1侧壁上的效果，同时，实现了其插接件231与位于电芯模块1端部的插接口410插接的效果，并且，如前文所述，由于FPC200的外表面上覆盖有一层绝缘膜，即，第二FPC段220的外表面上覆盖有一层绝缘膜，将第二FPC段220固定在第一绝缘板610与第二绝缘板620之间，能够提高第二FPC段220与电芯模块1之间的绝缘效果。 Optionally, as shown in FIGS. 8 to 12 , the insulating plate includes a first insulating plate 610 and a second insulating plate 620 , the FPC 200 includes a first FPC section 210 , a second FPC section 220 and a third FPC section 230 , the first The FPC section 210 , the second FPC section 220 and the third FPC section 230 are connected in sequence. The first FPC section 210 is arranged on the side wall of the battery module 1 and is fixedly connected to the busbar bracket 10 . The second FPC section 220 is fixed to the third FPC section 210 . Between an insulating plate 610 and a second insulating plate 620, the plug connector 231 is provided at the end of the third FPC section 230, and the plug connector 231 bypasses the first end plate 3 from above and is inserted into the plug port 410. This achieves the effect of fixing the FPC 200 on the side wall of the battery module 1, and at the same time realizes the effect of its plug connector 231 being plugged into the plug interface 410 located at the end of the battery module 1, and, as mentioned above, Since the outer surface of the FPC 200 is covered with an insulating film, that is, the outer surface of the second FPC segment 220 is covered with an insulating film, the second FPC segment 220 is fixed between the first insulating plate 610 and the second insulating plate 620 , can improve the insulation effect between the second FPC section 220 and the battery module 1 .
示例性地，本实施例中，第二FPC段220的两个端面分别与第一绝缘板610和第二绝缘板620粘接固定，以提高第二FPC段220固定在第一绝缘板610与第二绝缘板620之间的稳定性，当然在其他实施方案中，也可以通过其他方式将第二FPC段220固定在第一绝缘板610与第二绝缘板620之间，示例性地，可以通过卡接或者热熔等方式实现固定，此处不做一一列举。可选地，对电池模组进行组装时，为简化组装工序，可以先对第二FPC段220、第一绝缘板610以及第二绝缘板620进行组装，即，先将第二FPC段220的两个端面分别与第一绝缘板610和第二绝缘板620粘接固定，而后再组装第一FPC段210与汇流排支架10以及第三FPC段230与第一端板3。Illustratively, in this embodiment, the two end surfaces of the second FPC segment 220 are bonded and fixed with the first insulating plate 610 and the second insulating plate 620 respectively, so as to improve the fixation of the second FPC segment 220 between the first insulating plate 610 and the second insulating plate 620 . Stability between the second insulating plates 620. Of course, in other embodiments, the second FPC section 220 can also be fixed between the first insulating plate 610 and the second insulating plate 620 in other ways. For example, Fixing is achieved through clamping or hot melting, etc., which are not listed here. Optionally, when assembling the battery module, in order to simplify the assembly process, the second FPC section 220, the first insulating plate 610 and the second insulating plate 620 can be assembled first, that is, the second FPC section 220 can be assembled first. The two end surfaces are bonded and fixed to the first insulating plate 610 and the second insulating plate 620 respectively, and then the first FPC section 210 and the bus bracket 10 and the third FPC section 230 and the first end plate 3 are assembled.
可选地，如图8至图12所示，电池模组还包括保护盖700，保护盖700扣设于BMU从板18上和第一端板3上形成保护腔，第三FPC段230置于保护腔内，以形成对第三FPC段230的保护效果，避免在运输过程中由于磕碰等原因对第三FPC段230造成损坏，另外，将电池模组装入电池箱体后，随着电芯模块1发出热量，电池箱体内部环境温度升高，在冷却板的冷却作用下，电池箱体内部高温空气中的水分将凝结形成凝露附着在电池箱体的内壁上，保护盖700的设置有效避免了凝露滴落到第三FPC段230上，对电池模组的绝缘性能起到了很好的保障作用，最终提高了电池产品的使用安全性。需要说明的是，图12为保护盖700未扣设在BMU从板18和第一端板3上时的结构示意图。Optionally, as shown in Figures 8 to 12, the battery module also includes a protective cover 700. The protective cover 700 is buckled on the BMU slave board 18 and the first end plate 3 to form a protective cavity. The third FPC section 230 is placed in the protection cavity to form a protective effect on the third FPC segment 230 to avoid damage to the third FPC segment 230 due to bumps and other reasons during transportation. In addition, after the battery module is installed into the battery box, the The battery module 1 emits heat and the ambient temperature inside the battery box rises. Under the cooling effect of the cooling plate, the moisture in the high-temperature air inside the battery box will condense to form condensation and adhere to the inner wall of the battery box. The protective cover 700 The setting effectively prevents condensation from dripping onto the third FPC section 230, which plays a very good role in ensuring the insulation performance of the battery module and ultimately improves the safety of the battery product. It should be noted that FIG. 12 is a schematic structural diagram when the protective cover 700 is not buckled on the BMU slave board 18 and the first end board 3 .
可选地，如图8至图12所示，本实施例中，电池模组还包括侧板2，侧板2固定在电芯模块1的侧壁上，第一FPC段210、汇流排支架10以及隔离板均位于侧板2与电芯模块1之间，侧板2的设置实现了对第一FPC段210的保护，避免在运输过程中第一FPC段210发生磕碰的问题，以及电池箱体内的凝露滴落到第一FPC段210上的问题。同样地，上述将第二FPC段220固定在第一绝缘板610与第二绝缘板620之间的结构避免了在运输过程中第二FPC段220发生磕碰的问题，以及电池箱体内的凝露滴落到第二FPC段220上的问题。Optionally, as shown in Figures 8 to 12, in this embodiment, the battery module also includes a side plate 2, which is fixed on the side wall of the battery module 1, the first FPC section 210, the busbar bracket 10 and the isolation plate are located between the side plate 2 and the battery module 1. The setting of the side plate 2 realizes the protection of the first FPC section 210 and avoids the problem of collision of the first FPC section 210 during transportation, and the battery The problem of condensation inside the box dripping onto the first FPC section 210. Similarly, the above-mentioned structure of fixing the second FPC section 220 between the first insulating plate 610 and the second insulating plate 620 avoids the problem of collision of the second FPC section 220 during transportation and condensation in the battery box. Problem dripping onto the second FPC segment 220.
本实施例提供的电池模组，电芯模块1的多个电芯为侧出极柱的结构形式， 并且FPC200设置在电芯模块1具有极柱的一侧，将电池包中的冷却板安装在电池模组的顶部或者底部时，电芯发出的热量能够直接传递至冷却板而无需再通过FPC200，有效提高了电芯模块1中电芯的散热效率，降低了由于电芯模块1温度过高而发生热失控问题的几率，使得电池模组具有较高的安全性；另外，在运输或搬运等过程中，能够有效避免由于磕碰等原因对FPC200的损伤，为FPC200能够顺利采集电芯模块1温度数据和电压数据起到了有效的保障作用，最终使得电池模组对电芯模块1的温度控制和电压控制更为精准；将电池模组装入电池箱体后，若电池箱体内出现凝露，该电池模组还能够避免凝露滴落到FPC200上，对FPC200的绝缘效果起到了很好的保障作用，最终提高了电池模组的使用安全性。In the battery module provided by this embodiment, the plurality of cells in the cell module 1 have a side-out pole structure. And the FPC200 is set on the side of the battery module 1 with the pole. When the cooling plate in the battery pack is installed on the top or bottom of the battery module, the heat emitted by the battery can be directly transferred to the cooling plate without passing through the FPC200. It effectively improves the heat dissipation efficiency of the battery cells in the battery module 1 and reduces the probability of thermal runaway problems due to excessive temperature of the battery module 1, making the battery module highly safe; in addition, during transportation or handling, etc. During the process, it can effectively avoid damage to the FPC200 due to bumps and other reasons, and effectively ensure that the FPC200 can smoothly collect the temperature data and voltage data of the battery module 1. Ultimately, the battery module can control the temperature and voltage of the battery module 1. The voltage control is more precise; after the battery module is installed into the battery box, if condensation occurs in the battery box, the battery module can also prevent condensation from dripping onto the FPC200, which plays a very good role in the insulation effect of the FPC200. The protection function ultimately improves the safety of the battery module.
本实施例还提供一种电池包，该电池包具有较高的安全性和较高的生产效率。This embodiment also provides a battery pack, which has higher safety and higher production efficiency.
示例性地，该电池包包括电池箱体以及上述的电池模组，电池模组安装于箱体内，该电池采用上述的电池模组，其电芯模块1中的电芯具有较高的散热效率，大大减少了由于电芯模块1温度过高而导致的热失控，有效提高了电池包的安全性。另外，该电池包的BMU固定在电芯模块上，实现了在电池箱体以外组装BMU和FPC，简化了电池包的组装工艺，进而提高了电池包的生产效率。Illustratively, the battery pack includes a battery box and the above-mentioned battery module. The battery module is installed in the box. The battery uses the above-mentioned battery module, and the cells in the battery module 1 have high heat dissipation efficiency. , greatly reducing thermal runaway caused by excessive temperature of the battery module 1, effectively improving the safety of the battery pack. In addition, the BMU of the battery pack is fixed on the battery module, which enables the assembly of the BMU and FPC outside the battery box, simplifying the assembly process of the battery pack, thereby improving the production efficiency of the battery pack.
可选地，电池包还包括冷却板，冷却板安装于箱体内，且冷却板设置在电芯模块1的顶部和底部中至少之一，冷却板与电芯模块1之间通过导热胶粘接，电芯模块1发出的热量能够通过导热胶直接传递至冷却板，以实现电芯模块1中电芯的散热效果。Optionally, the battery pack also includes a cooling plate. The cooling plate is installed in the box, and the cooling plate is arranged on at least one of the top and bottom of the battery module 1. The cooling plate and the battery module 1 are bonded by thermally conductive adhesive. , the heat emitted by the battery module 1 can be directly transferred to the cooling plate through the thermal conductive glue to achieve the heat dissipation effect of the batteries in the battery module 1.
本申请提供的电池模组，其电芯模块中的多个电芯的极柱朝向电池模组的侧壁设置，FPC设置在电芯模块具有极柱的一侧，使得该电池模组能够更加适用于顶部冷却或者底部冷却的电池包结构，具体而言，将电池包中的冷却板安装在电池模组的顶部或者底部时，电芯发出的热量能够直接传递至冷却板而无 需再通过FPC，省去了FPC对传递热量的阻挡，有效提高了冷却板与电池模组之间热量传递的效率，进而提高了电芯模块中电芯的散热效率；另一方面，本申请提供的电池模组将BMU从板固定在电池模组的第一端板上且远离电芯模块的一侧，使得BMU从板与第一端板固定连接，在电池模组层面即可实现BMU与FPC的组装，省去了在电池箱内组装BMU和FPC的麻烦，大大简化了电池包的组装工艺，具有提高生产效率的效果。In the battery module provided by this application, the poles of the plurality of cells in the cell module are arranged toward the side wall of the battery module, and the FPC is arranged on the side of the cell module with the poles, so that the battery module can be more It is suitable for top cooling or bottom cooling battery pack structures. Specifically, when the cooling plate in the battery pack is installed on the top or bottom of the battery module, the heat emitted by the battery core can be directly transferred to the cooling plate without any cooling. It is necessary to pass through the FPC again, eliminating the need for the FPC to block the heat transfer, effectively improving the efficiency of heat transfer between the cooling plate and the battery module, thereby improving the heat dissipation efficiency of the battery cells in the battery module; on the other hand, this application The provided battery module fixes the BMU slave board on the first end plate of the battery module and away from the side of the battery module, so that the BMU slave board is fixedly connected to the first end plate, and the BMU can be realized at the battery module level. The assembly with FPC eliminates the trouble of assembling the BMU and FPC in the battery box, greatly simplifies the assembly process of the battery pack, and has the effect of improving production efficiency.
本实用新型提供的电池包，采用上述的电池模组，其电芯模块中的电芯具有较高的散热效率，大大降低了由于电芯模块温度过高而导致的热失控的问题，有效提高了电池包的安全性。另外，该电池包的BMU固定在电芯模块上，实现了在电池箱以外组装BMU和FPC，简化了电池包的组装工艺，进而提高了电池包的生产效率。 The battery pack provided by the utility model adopts the above-mentioned battery module, and the cells in the battery module have high heat dissipation efficiency, which greatly reduces the problem of thermal runaway caused by excessive temperature of the battery module, and effectively improves the efficiency of thermal runaway. improve the safety of the battery pack. In addition, the BMU of the battery pack is fixed on the battery module, which enables the BMU and FPC to be assembled outside the battery box, simplifying the assembly process of the battery pack, thereby improving the production efficiency of the battery pack.

Claims (17)

  1. 一种电池模组，包括电芯模块(1)、侧板(2)、第一端板(3)、第二端板(4)、BMU从板(18)、引出铜排与FPC采集板(5)；A battery module, including a battery module (1), a side plate (2), a first end plate (3), a second end plate (4), a BMU slave board (18), a lead-out copper bar and an FPC collection board (5);
    所述侧板(2)位于所述电芯模块(1)的两侧，所述第一端板(3)与所述第二端板(4)分别位于所述电芯模块(1)的两端；The side plates (2) are located on both sides of the battery module (1), and the first end plate (3) and the second end plate (4) are respectively located on the sides of the battery module (1). both ends;
    所述BMU从板(18)集成在所述第一端板(3)远离所述电芯模块(1)的一侧表面；The BMU slave board (18) is integrated on the side surface of the first end plate (3) away from the battery module (1);
    所述引出铜排包括分别设置于所述电芯模块(1)两端的正极引出铜排(13)与负极引出铜排(19)；The lead-out copper bar includes a positive lead-out copper bar (13) and a negative lead-out copper bar (19) respectively provided at both ends of the battery module (1);
    所述电芯模块(1)与所述第一端板(3)之间设置第一绝缘组件(11)，以对所述电芯模块(1)与所述负极引出铜排(19)进行绝缘；A first insulating component (11) is disposed between the battery module (1) and the first end plate (3) to insulate the battery module (1) and the negative lead copper bar (19). insulation;
    所述电芯模块(1)与所述第二端板(4)之间设有第二绝缘组件(12)，以对所述电芯模块(1)与所述正极引出铜排(13)进行绝缘；A second insulating component (12) is provided between the battery module (1) and the second end plate (4) to connect the battery module (1) and the positive electrode lead-out copper bar (13). insulate;
    所述FPC采集板(5)包括弯折部(8)与连接部(7)，所述连接部(7)在所述电芯模块(1)与所述侧板(2)之间延伸，所述弯折部(8)穿过所述第一绝缘组件(11)，并弯折延伸至所述第一端板(3)的外侧连接所述BMU从板(18)。The FPC collection board (5) includes a bending part (8) and a connecting part (7), and the connecting part (7) extends between the battery module (1) and the side plate (2), The bent portion (8) passes through the first insulation component (11), and is bent and extended to the outside of the first end plate (3) to connect to the BMU slave plate (18).
  2. 根据权利要求1所述的电池模组，其中，所述电芯模块(1)包括依次排列设置的至少两个电芯，沿所述电芯长度方向的两侧分别设置有极柱；The battery module according to claim 1, wherein the battery module (1) includes at least two battery cells arranged in sequence, and poles are respectively provided on both sides along the length direction of the battery core;
    所述电芯靠近所述侧板(2)的一侧分别设置有排气阀(15)。An exhaust valve (15) is respectively provided on one side of the battery core close to the side plate (2).
  3. 根据权利要求1或2所述的电池模组，其中，沿所述侧板(2)的外缘设置有向靠近所述电芯模块(1)的一侧弯折的固定部(201)；The battery module according to claim 1 or 2, wherein a fixing portion (201) bent toward the side close to the battery cell module (1) is provided along the outer edge of the side plate (2);
    所述固定部设置为分别与所述第一端板(3)和所述第二端板(4)焊接固定。The fixing part is configured to be welded and fixed to the first end plate (3) and the second end plate (4) respectively.
  4. 根据权利要求1-3任一项所述的电池模组，其中，所述第一绝缘组件(11)包括第一绝缘板与第二绝缘板，所述第一绝缘板与第二绝缘板分别设置于所述FPC采集板(5)的所述弯折部(8)的两侧表面；The battery module according to any one of claims 1 to 3, wherein the first insulating component (11) includes a first insulating plate and a second insulating plate, and the first insulating plate and the second insulating plate respectively Disposed on both sides of the bent portion (8) of the FPC collection plate (5);
    所述弯折部(8)伸出所述第一端板(3)的外表面还设置有保护盖。 The outer surface of the bent portion (8) protruding from the first end plate (3) is also provided with a protective cover.
  5. 根据权利要求1-4任一项所述的电池模组，其中，所述第二绝缘组件(12)包括第三绝缘板与第四绝缘板；The battery module according to any one of claims 1-4, wherein the second insulating component (12) includes a third insulating plate and a fourth insulating plate;
    所述第三绝缘板设置于所述正极引出铜排(13)与所述第二端板(4)之间，所述第四绝缘板设置于所述正极引出铜排(13)与所述电芯模块(1)之间。The third insulating plate is disposed between the positive lead copper bar (13) and the second end plate (4), and the fourth insulating plate is disposed between the positive lead copper bar (13) and the second end plate (4). between battery modules (1).
  6. 根据权利要求1-5任一项所述的电池模组，还包括位于所述电芯模块(1)两侧的铝排组件；The battery module according to any one of claims 1-5, further comprising aluminum row assemblies located on both sides of the battery module (1);
    所述铝排组件包括汇流排支架(10)与至少两个汇流排(9)，所述汇流排支架(10)设置为支撑所述至少两个汇流排(9)；The aluminum bar assembly includes a bus bar bracket (10) and at least two bus bars (9), and the bus bar bracket (10) is configured to support the at least two bus bars (9);
    所述至少两个汇流排(9)依次串联设置，所述汇流排(9)分别连接所述电芯的极柱；The at least two busbars (9) are arranged in series, and the busbars (9) are respectively connected to the poles of the battery core;
    所述汇流排支架(10)设置于所述侧板(2)与所述电芯模块(1)之间，所述汇流排(9)分别固定于所述汇流排支架(10)远离所述电芯模块(1)的一侧表面；The busbar bracket (10) is arranged between the side plate (2) and the battery module (1), and the busbars (9) are respectively fixed to the busbar bracket (10) away from the One side surface of the battery module (1);
    所述汇流排(9)通过热熔柱(17)固定在所述汇流排支架(10)上。The bus bar (9) is fixed on the bus bar bracket (10) through a hot melt column (17).
  7. 根据权利要求6所述的电池模组，还包括柔性电路板FPC支撑架(6)，所述FPC支撑架(6)设置为支撑所述FPC采集板(5)；The battery module according to claim 6, further comprising a flexible circuit board FPC support frame (6), the FPC support frame (6) is configured to support the FPC collection board (5);
    所述FPC支撑架(6)设置于所述FPC采集板(5)与所述汇流排(9)之间。The FPC support frame (6) is arranged between the FPC collection board (5) and the bus bar (9).
  8. 根据权利要求6或7所述的电池模组，其中，所述汇流排支架(10)与所述侧板(2)之间还设置有隔热板(14)；The battery module according to claim 6 or 7, wherein a heat insulation plate (14) is further provided between the bus bracket (10) and the side plate (2);
    所述侧板(2)的表面并排开设至少两个第一排气孔；The surface of the side plate (2) is provided with at least two first exhaust holes side by side;
    所述隔热板(14)的表面并排开设至少两个第二排气孔；At least two second exhaust holes are opened side by side on the surface of the heat insulation board (14);
    所述汇流排支架(10)的表面并排开设至少两个第三排气孔；At least two third exhaust holes are opened side by side on the surface of the busbar bracket (10);
    所述第一排气孔、所述第二排气孔与所述第三排气孔与排气阀(15)一一对应；The first exhaust hole, the second exhaust hole, and the third exhaust hole correspond to the exhaust valve (15) one-to-one;
    所述侧板(2)靠近所述隔热板(14)一侧的表面还设置有绝缘膜层(16)； The surface of the side plate (2) close to the heat insulation plate (14) is also provided with an insulating film layer (16);
    所述隔热板(14)为云母片。The heat insulation board (14) is a mica sheet.
  9. 一种电池包，包括权利要求1-8任一项所述的电池模组。A battery pack including the battery module according to any one of claims 1-8.
  10. 根据权利要求9所述的电池包，还包括第一液冷板与第二液冷板，所述第一液冷板与第二液冷板分别胶黏连接所述电芯模块(1)的相对的两侧表面；The battery pack according to claim 9, further comprising a first liquid-cooled plate and a second liquid-cooled plate, the first liquid-cooled plate and the second liquid-cooled plate being respectively adhesively connected to the battery cell module (1). Opposite side surfaces;
    所述第一液冷板与所述电芯模块(1)之间设置第一导热胶层；A first thermally conductive adhesive layer is provided between the first liquid cooling plate and the battery core module (1);
    所述第二液冷板与所述电芯模块(1)之间设置第二导热胶层。A second thermally conductive adhesive layer is provided between the second liquid cooling plate and the battery core module (1).
  11. 电池模组，包括：Battery module, including:
    电芯模块(1)，所述电芯模块(1)包括多个电芯，多个所述电芯为侧出极柱结构，多个所述电芯依次堆叠排列，所述电芯的极柱朝向所述电池模组的侧壁；Battery core module (1). The battery core module (1) includes a plurality of battery cores. The plurality of battery cores have a side-out pole structure. The plurality of battery cores are stacked in sequence. The poles of the battery cores are The pillar faces the side wall of the battery module;
    柔性电路板FPC(200)，所述FPC(200)设置于所述电芯模块(1)具有所述极柱的一侧；Flexible circuit board FPC (200), the FPC (200) is arranged on the side of the battery module (1) with the pole;
    电池管理单元BMU从板(18)，所述BMU从板(18)固定于所述电池模组的第一端板(3)上，并位于远离所述电芯模块(1)的一侧，所述BMU从板(18)上设有插接口(410)，所述FPC(200)朝向所述BMU从板(18)方向延伸，且所述FPC(200)的端部设有插接件(231)，所述插接件(231)插设于所述插接口(410)内。Battery management unit BMU slave board (18), the BMU slave board (18) is fixed on the first end plate (3) of the battery module and is located on the side away from the battery module (1), The BMU slave board (18) is provided with a plug-in interface (410), the FPC (200) extends toward the BMU slave board (18), and the end of the FPC (200) is provided with a plug connector (231), the plug connector (231) is inserted into the plug interface (410).
  12. 根据权利要求11所述的电池模组，还包括汇流排和汇流排支架(10)，所述汇流排支架(10)固定于所述电芯模块(1)具有所述极柱的一侧，所述汇流排支架(10)上设有避让孔，所述汇流排通过所述避让孔与所述极柱电连接，所述FPC(200)固定于所述汇流排支架(10)上。The battery module according to claim 11, further comprising a busbar and a busbar bracket (10), the busbar bracket (10) being fixed to the side of the battery module (1) with the pole, The busbar bracket (10) is provided with an escape hole, the busbar is electrically connected to the pole through the escape hole, and the FPC (200) is fixed on the busbar bracket (10).
  13. 根据权利要求11或12所述的电池模组，还包括绝缘板，所述绝缘板夹设于所述第一端板(3)与所述电芯模块(1)之间，所述绝缘板采用绝缘材料制成。The battery module according to claim 11 or 12, further comprising an insulating plate sandwiched between the first end plate (3) and the battery module (1), the insulating plate Made of insulating material.
  14. 根据权利要求13所述的电池模组，其中，所述绝缘板包括第一绝缘板(610)和第二绝缘板(620)，所述FPC(200)包括第一FPC段(210)、第二FPC段(220)以及第三FPC段(230)，所述第一FPC段(210)、所述第二FPC段(220)以及所述第三FPC段(230)依次连接，所述第一FPC段(210)设置于所述电芯模块(1)的侧壁上，所述第二FPC段(220)固定于所述第一绝缘板(610)与所述第二绝缘板(620) 之间，所述插接件(231)设置于所述第三FPC段(230)的端部，所述插接件(231)由上方绕过所述第一端板(3)，并插设在所述插接口(410)内。The battery module according to claim 13, wherein the insulating plate includes a first insulating plate (610) and a second insulating plate (620), and the FPC (200) includes a first FPC segment (210), a The second FPC section (220) and the third FPC section (230), the first FPC section (210), the second FPC section (220) and the third FPC section (230) are connected in sequence, and the third FPC section (230) is connected in sequence. An FPC section (210) is provided on the side wall of the battery module (1), and the second FPC section (220) is fixed to the first insulating plate (610) and the second insulating plate (620) ) The plug-in connector (231) is disposed at the end of the third FPC section (230). The plug-in connector (231) bypasses the first end plate (3) from above and is inserted into the first end plate (3). Located in the plug-in interface (410).
  15. 根据权利要求14所述的电池模组，还包括保护盖(700)，所述保护盖(700)扣设于所述BMU从板(18)上和所述第一端板(3)上形成保护腔，所述第三FPC段(230)置于所述保护腔内。The battery module according to claim 14, further comprising a protective cover (700), the protective cover (700) being buckled on the BMU slave plate (18) and the first end plate (3) to form a Protection cavity, the third FPC section (230) is placed in the protection cavity.
  16. 电池包，包括箱体以及如权利要求11-15任一项所述的电池模组，所述电池模组安装于所述箱体内。The battery pack includes a box and the battery module according to any one of claims 11 to 15, and the battery module is installed in the box.
  17. 根据权利要求16所述的电池包，还包括冷却板，所述冷却板安装于所述箱体内，且所述冷却板设置在所述电芯模块(1)的顶部和底部中至少之一，所述冷却板与所述电芯模块(1)之间通过导热胶粘接，所述电芯模块(1)发出的热量能够通过所述导热胶传递至所述冷却板。 The battery pack according to claim 16, further comprising a cooling plate, the cooling plate is installed in the box, and the cooling plate is provided at least one of the top and bottom of the battery module (1), The cooling plate and the battery core module (1) are bonded through thermally conductive adhesive, and the heat emitted by the battery core module (1) can be transferred to the cooling plate through the thermally conductive adhesive.
PCT/CN2023/111867 2022-08-09 2023-08-09 Battery module and battery pack WO2024032641A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210948912.6A CN115241612B (en) 2022-08-09 2022-08-09 Battery module and battery pack
CN202210948912.6 2022-08-09
CN202223039038.9U CN218939920U (en) 2022-11-15 2022-11-15 Battery module and battery pack
CN202223039038.9 2022-11-15

Publications (1)

Publication Number Publication Date
WO2024032641A1 true WO2024032641A1 (en) 2024-02-15

Family

ID=89850961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/111867 WO2024032641A1 (en) 2022-08-09 2023-08-09 Battery module and battery pack

Country Status (1)

Country Link
WO (1) WO2024032641A1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111599955A (en) * 2019-03-22 2020-08-28 骆驼集团新能源电池有限公司 Non-module aluminum-shell battery module and aluminum-shell battery
CN211785979U (en) * 2019-12-17 2020-10-27 深圳市国威科创新能源科技有限公司 Single-side wireless acquisition module
WO2021072726A1 (en) * 2019-10-18 2021-04-22 淄博火炬能源有限责任公司 Lithium ion battery module for electric forklift truck, and power supply box
CN214542436U (en) * 2021-04-21 2021-10-29 苏州清陶新能源科技有限公司 Battery module and battery pack
CN215266581U (en) * 2021-07-30 2021-12-21 蜂巢能源科技有限公司 Battery module
CN114142136A (en) * 2021-11-23 2022-03-04 天津市捷威动力工业有限公司 Battery module and battery pack
CN216958413U (en) * 2021-11-29 2022-07-12 江苏正力新能电池技术有限公司 Battery module and battery package
WO2022156083A1 (en) * 2021-01-21 2022-07-28 江苏正力新能电池技术有限公司 Battery module for preventing thermal diffusion and battery pack
CN115241612A (en) * 2022-08-09 2022-10-25 天津市捷威动力工业有限公司 Battery module and battery pack
CN218939920U (en) * 2022-11-15 2023-04-28 天津市捷威动力工业有限公司 Battery module and battery pack

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111599955A (en) * 2019-03-22 2020-08-28 骆驼集团新能源电池有限公司 Non-module aluminum-shell battery module and aluminum-shell battery
WO2021072726A1 (en) * 2019-10-18 2021-04-22 淄博火炬能源有限责任公司 Lithium ion battery module for electric forklift truck, and power supply box
CN211785979U (en) * 2019-12-17 2020-10-27 深圳市国威科创新能源科技有限公司 Single-side wireless acquisition module
WO2022156083A1 (en) * 2021-01-21 2022-07-28 江苏正力新能电池技术有限公司 Battery module for preventing thermal diffusion and battery pack
CN214542436U (en) * 2021-04-21 2021-10-29 苏州清陶新能源科技有限公司 Battery module and battery pack
CN215266581U (en) * 2021-07-30 2021-12-21 蜂巢能源科技有限公司 Battery module
CN114142136A (en) * 2021-11-23 2022-03-04 天津市捷威动力工业有限公司 Battery module and battery pack
CN216958413U (en) * 2021-11-29 2022-07-12 江苏正力新能电池技术有限公司 Battery module and battery package
CN115241612A (en) * 2022-08-09 2022-10-25 天津市捷威动力工业有限公司 Battery module and battery pack
CN218939920U (en) * 2022-11-15 2023-04-28 天津市捷威动力工业有限公司 Battery module and battery pack

Similar Documents

Publication Publication Date Title
CN208298881U (en) Power battery pack and vehicle
WO2024046194A1 (en) Battery pack and electric device
CN214477697U (en) Battery module and battery pack
CN110289379A (en) A kind of soft-package battery mould group and its manufacturing method
CN216850227U (en) Battery module and battery pack
CN112072026A (en) Power battery pack
CN218569029U (en) Battery core, battery module and battery pack
US20220181733A1 (en) Battery Module and Battery Pack Comprising Same
CN214477761U (en) Battery module and battery pack
WO2024103581A1 (en) Battery cell adapter, battery cell stack, and module-free battery pack
CN214505696U (en) Battery module for vehicle
CN218939920U (en) Battery module and battery pack
CN113224435A (en) High specific energy battery pack
CN115241612B (en) Battery module and battery pack
CN111370611A (en) Power battery module
CN115312937B (en) Battery pack and electric device comprising same
WO2024032641A1 (en) Battery module and battery pack
CN110233229A (en) A kind of connection structure and battery modules of soft package battery module and busbar connector assembly
CN216054966U (en) High specific energy battery pack
CN212587624U (en) Power battery pack
CN113363623A (en) Battery integrated form automobile body chassis and electric automobile
CN113889708A (en) Vehicle and battery pack thereof
CN114421082B (en) Frame, battery module and assembly method of battery module
CN115084762B (en) Battery pack and electric automobile
CN219917400U (en) Battery module and electricity utilization device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23851862

Country of ref document: EP

Kind code of ref document: A1