WO2022199447A1 - 一种电池模组和用电设备 - Google Patents

一种电池模组和用电设备 Download PDF

Info

Publication number
WO2022199447A1
WO2022199447A1 PCT/CN2022/081237 CN2022081237W WO2022199447A1 WO 2022199447 A1 WO2022199447 A1 WO 2022199447A1 CN 2022081237 W CN2022081237 W CN 2022081237W WO 2022199447 A1 WO2022199447 A1 WO 2022199447A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
battery module
battery
electrode
casing
Prior art date
Application number
PCT/CN2022/081237
Other languages
English (en)
French (fr)
Inventor
农文彬
李坤龙
Original Assignee
东莞新能安科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 东莞新能安科技有限公司 filed Critical 东莞新能安科技有限公司
Priority to EP22774108.9A priority Critical patent/EP4207419A1/en
Priority to CN202280016153.8A priority patent/CN116868405A/zh
Publication of WO2022199447A1 publication Critical patent/WO2022199447A1/zh
Priority to US18/193,969 priority patent/US20230246305A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the embodiments of the present application relate to the technical field of battery devices, and in particular, to a battery module and electrical equipment.
  • the inventor of the present application found that the existing battery modules are usually provided with bus bars and a casing, and it is necessary to manually connect the bus bars to the battery cells, and then use the casing to encapsulate the battery cells. , the assembly efficiency of the battery module is low, and the assembly is inconvenient.
  • embodiments of the present application provide a battery module and an electrical device to improve the assembly efficiency of the battery module.
  • a battery module including: a casing, a battery core assembly, and a plurality of first bus bars.
  • the casing is provided with a receiving cavity
  • the casing includes a first casing and a second casing, the first casing and the second casing are fixed, and the first casing and the second casing are fixed.
  • the second housing encloses the accommodating cavity, the battery core assembly is arranged in the accommodating cavity, the battery core assembly includes a battery core, and the battery core includes an encapsulation shell and electrodes arranged outside the encapsulation shell,
  • the electrode includes a first electrode end and a second electrode end
  • the first casing includes a first top wall and a plurality of first side walls connected to the first top wall, and the first top wall is provided with a first Through holes and a plurality of first bus bars are disposed on the first top wall, and the plurality of first bus bars are connected to the first electrode ends through the first through holes.
  • the second housing includes a second top wall and a plurality of second side walls connected to the second top wall, the second top wall and the first top wall Oppositely arranged, the second top wall is provided with a second through hole; the first electrode end and the second electrode end are arranged at opposite ends of the packaging shell, and the battery module includes a plurality of second electrode ends.
  • a bus bar, the plurality of second bus bars are connected to the second electrode terminals through the second through holes.
  • the plurality of second bus bars are connected to the second electrode ends of the battery cells, so as to realize the electrical conduction between the battery module and the plurality of battery cells, and the battery module can work normally.
  • the first electrode end and the second electrode end are provided at the same end of the packaging case, and the plurality of first bus bars are connected to the second electrode end.
  • the plurality of first bus bars are connected to the second electrode ends of the battery cells, so that the battery module is electrically connected to the plurality of battery cells under the condition that only the first bus bars are provided, and the battery module can work normally.
  • the first top wall of the first housing is provided with a plurality of first confluence grooves, one of the first confluence grooves communicates with at least two of the first through holes, one of the first confluence grooves
  • the first bus bar is disposed in one of the first bus grooves, and when viewed along the first direction, at least one electrode of the cell is located in one of the first through holes.
  • the plurality of first bus bars may be connected to at least one electrode in the first through hole.
  • the second top wall of the second housing is provided with a plurality of second confluence grooves, one of the second confluence grooves communicates with at least two of the second through holes, one of the second confluence grooves
  • the second bus bar is disposed in one of the second bus grooves, and when viewed in a direction opposite to the first direction, at least one electrode of the cell is located in one of the second through holes.
  • the plurality of second bus bars may be connected to at least one electrode in the second through hole.
  • the first housing is provided with a first accommodating groove; the second housing is provided with a second accommodating groove, and the first accommodating groove and the second accommodating groove are formed together the receiving cavity.
  • the first casing is provided with a plurality of first grooves, the plurality of first grooves are communicated with the first receiving cavity;
  • the second casing is provided with a plurality of first grooves Two slots, the second slot communicates with the second receiving cavity, the first end of the cell is arranged in the first slot, and the second end of the cell is arranged in the first slot.
  • a plurality of first slots and a plurality of second slots can define the positions of a plurality of cells, wherein one of the first slots and one of the second slots defines the position of a cell, which reduces the position of the cells in the accommodating cavity There is a relative displacement between the inner and the shell.
  • the first bus bar is provided with a first positioning hole; the first housing is extended with a first positioning column in a direction away from the battery core, and the first positioning column is inserted into the in the first positioning hole.
  • the arrangement of the first positioning hole and the first positioning post can define the first bus bar on the first top wall of the first housing, and restrict the movement of the first bus bar.
  • a guide block is provided on the side wall of the first confluence groove away from the first positioning column, and the guide block is provided with an inclined surface.
  • the guide block can limit the movement of the first bus bar in a direction away from the housing.
  • the battery module includes a circuit board, the circuit board is disposed in the receiving cavity, and the circuit board is connected to the plurality of battery cells; the battery module includes a sampling
  • the sampling assembly includes a sampling wire, one end of the sampling wire is connected to the circuit board, and the other end of the sampling wire is connected to the electrodes of the plurality of cells.
  • the sampling component can sample the voltage and temperature of the cell.
  • the sampling wire includes a first sampling wire, the first sampling wire is disposed on a surface of the first casing away from the cell, and one end of the first sampling wire is connected to the circuit board, and the other end of the first sampling wire is connected to the plurality of battery cells.
  • the first sampling wire samples the voltage of the cell located on one side of the casing, that is, the voltage of the cell located on one side of the first casing.
  • the sampling wire includes a second sampling wire, the second sampling wire is disposed on a surface of the second casing away from the cell, and one end of the second sampling wire is connected to the circuit board, and the other end of the second sampling wire is connected to the plurality of battery cells.
  • the second sampling wire samples the voltage of the cell located on the other side of the casing, that is, the voltage of the cell located on one side of the second casing.
  • the battery module includes a first conductive sheet and a second conductive sheet, one end of the first conductive sheet is connected to the circuit board, and the other end of the first conductive sheet is connected to the circuit board.
  • the first conductive sheet and the second conductive sheet realize the electrical connection between the circuit board and the cell.
  • the first casing is provided with a third through hole through which the first conductive sheet passes;
  • the second casing is provided with a fourth through hole , the fourth through hole is for the second conductive sheet to pass through.
  • the third through hole and the fourth through hole can facilitate the connection of the first conductive sheet and the second conductive sheet to the electrodes of the cell after passing through.
  • the first housing is provided with a fifth through hole and a sixth through hole, the fifth through hole is for the first conductive sheet to pass through, and the sixth through hole is for The second conductive sheet passes through.
  • the fifth through holes and the sixth through holes facilitate the connection of the first conductive sheet and the second conductive sheet to the electrodes of the battery cells after passing through the first casing.
  • the sampling wire is provided with a plug connector; the circuit board is provided with a plug port, and the plug connector is inserted into the plug port.
  • the arrangement of the plug connector and the plug interface facilitates the direct connection and separation of the sampling wire and the circuit board.
  • a first fixing groove and a first opening communicating with the first fixing groove are provided on the inner side of an opposite first side wall of the first casing;
  • An inner side of an opposite second side wall is provided with a second fixing slot and a second opening communicating with the second fixing slot.
  • One end of the circuit board is inserted into the first fixing slot from the first opening.
  • the other end of the circuit board is clamped into the second fixing slot from the second opening.
  • the arrangement of the first fixing slot and the second fixing slot can fix the circuit board in the accommodating cavity of the casing.
  • the battery module includes a resin layer, and the resin layer bonds and fixes the plurality of battery cells, and/or connects the plurality of battery cells to the first shell and/or, the plurality of battery cells and the second housing are bonded and fixed.
  • the battery module includes a first baffle plate and a second baffle plate, the first baffle plate is covered on a surface of the first casing away from the battery cell, so The second baffle is covered on a surface of the second casing facing away from the cell.
  • the first baffle is used to protect the first bus bar of the first top wall, reduce the contact between the first bus bar and external components, and at the same time play a sealing role on the side of the first shell of the battery module.
  • the two baffles are used to protect the second bus bar arranged on the second top wall, reduce the contact between the second bus bar and external components, and at the same time play a role in sealing the side of the second casing of the battery module.
  • an electrical device including the battery module as described above.
  • the embodiments of the present application are provided with a casing, a cell assembly and a first bus bar.
  • the casing is provided with a receiving cavity, the casing includes a first casing and a second casing, the first casing and the second casing are fixed, and the first casing and the second casing are The body is enclosed to form the receiving cavity.
  • the battery core assembly is arranged in the receiving cavity, and the battery core component includes a plurality of battery cores.
  • the battery core includes an encapsulation shell and an electrode arranged outside the encapsulation shell.
  • the electrode includes a first electrode end and a second electrode end.
  • the first casing includes a first top wall and a plurality of first side walls connected to the first top wall, and the first top wall is provided with a first through hole.
  • the plurality of first bus bars are arranged on the first top wall, and the plurality of first bus bars are connected to the first electrode ends through the first through holes.
  • FIG. 1 is a schematic diagram of the overall assembly of a battery module according to an embodiment of the present application.
  • FIG. 2 is a schematic exploded schematic diagram of a partial structure of a battery module according to an embodiment of the present application
  • FIG. 3 is an exploded schematic view of a part of the structure of the battery module according to the embodiment of the present application.
  • FIG. 4 is an exploded schematic view of a first housing and a first busbar of a battery module according to an embodiment of the present application
  • Fig. 5 is the enlarged schematic diagram of the A part of Fig. 4;
  • FIG. 6 is an exploded schematic diagram of a first casing and a circuit board of a battery module according to an embodiment of the present application
  • FIG. 7 is an enlarged schematic view of the structure of part C of FIG. 6;
  • FIG. 8 is a partial cross-sectional schematic diagram of a first casing of a battery module according to an embodiment of the present application.
  • FIG. 9 is an exploded schematic view of the first casing and the second casing of the battery module according to the embodiment of the present application.
  • FIG. 10 is a schematic diagram of the overall structure of the second casing of the battery module according to the embodiment of the present application.
  • FIG. 11 is a partial cross-sectional schematic diagram of a second casing of a battery module according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a single cell of a battery module according to an embodiment of the present application.
  • FIG. 13 is a top view of a partial structure of a battery module according to an embodiment of the present application.
  • FIG. 14 is an exploded schematic view of a part of the structure of the battery module according to the embodiment of the present application.
  • FIG. 15 is an exploded schematic diagram of a partial structure of a battery module according to an embodiment of the present application.
  • FIG. 16 is an enlarged schematic view of the structure of part E of FIG. 14;
  • FIG. 17 is an enlarged schematic view of the structure of part B of FIG. 14;
  • FIG. 18 is a schematic diagram of partial structural assembly of a battery module according to an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a circuit board of an embodiment of a battery module of the present application.
  • 20 is a schematic exploded schematic diagram of a partial structure of another embodiment of the battery module of the present application.
  • 21 is an exploded schematic view of a second housing and a second busbar of another embodiment of the battery module of the present application.
  • FIG. 22 is a flow chart of the assembly process of the battery module according to the embodiment of the present application.
  • the structure of the battery module will be described in conjunction with the X, Y, and Z coordinate axes.
  • the X, Y, and Z coordinate axes are perpendicular to each other, and the first direction is the Z axis.
  • the positive direction of the second direction is the positive direction of the Y axis, and the third direction is the positive direction of the X axis.
  • the battery module 01 includes a housing 10 , a cell assembly 20 and a plurality of first bus bars 40 .
  • the plurality of cells 21 of the cell assembly 20 are disposed in the casing 10
  • the first bus bar 40 is disposed outside the casing 10 and connected to the plurality of cells 21 .
  • the first bus bar 40 disposed on the outer side of the casing 10 is directly connected to the battery core 21 , which improves the assembly efficiency of the battery module and facilitates assembly.
  • the battery module 01 can be arranged in the electrical equipment, and can play the role of charging and discharging in the electrical equipment.
  • the battery module 01 further includes a resin layer (not shown), a circuit board 50 , a sampling assembly 60 , a first conductive sheet 70 , a second conductive sheet 80 , a first baffle 90 and a second baffle 100 .
  • the resin layer is arranged between the plurality of cells 21 , the circuit board 50 is arranged in the housing 10 , the sampling assembly 60 is connected to the circuit board 50 , and the sampling assembly 60 is connected to the first bus bar 40 , and the first conductive sheet 70
  • the circuit board 50 is connected to one electrode terminal 212 of the plurality of cells 21 , the second conductive sheet 80 connects the circuit board 50 to the other electrode terminal 212 of the plurality of cells 21 , the first baffle 90 and the second baffle
  • the cover 100 is disposed on the outer surface of the casing 10 .
  • the housing 10 is provided with a receiving cavity (not shown in the figure), and the housing 10 includes a first housing 11 and a second housing 12.
  • the first casing 11 and the second casing 12 are fixed to each other, and the first casing 11 and the second casing 12 enclose the receiving cavity.
  • the accommodating cavity is used for accommodating the cell assembly 20 .
  • the first housing 11 includes a first top wall 111 and a plurality of first side walls 112 connected to the first top wall 111 .
  • the first top wall 111 is provided with a first through hole 1111 , and the first through hole 1111 facilitates the connection between the first bus bar 40 and the battery cell 21 .
  • the first through hole 1111 penetrates through the first top wall 111 .
  • the first casing 11 includes a first top wall 111 and four first side walls 112 connected to the first top wall 111 , and the first top wall 111 and the four first side walls 112 enclose A first receiving groove 11a is formed.
  • the first housing 11 includes a third side wall 11 b and a fourth side wall 11 c arranged oppositely along the second direction and a third side wall 11 b arranged oppositely along the third direction
  • the fifth side wall 11d and the sixth side wall 11e, the third side wall 11b, the fifth side wall 11d, the fourth side wall 11c and the sixth side wall 11e are connected in sequence and enclosed with the first top wall 111 to form The first receiving groove 11a.
  • the first positioning post 1113 cooperates with the first positioning hole to fix the first bus bar 40 on the first top wall 111 of the first housing 11 to restrict the movement of the first bus bar 40 .
  • the first positioning post 1113 is not limited to being provided on the first housing 11
  • the first positioning hole is not limited to being provided on the first bus bar 40 , and can also be provided at other positions, as long as the first bus bar 40 is satisfied. It can be fixed on the first top wall 111 of the first housing 11 .
  • the first positioning column 1113 is arranged on the first bus bar 40
  • the first positioning hole is arranged on the first top wall 111 .
  • a guide block 1112 a is provided on the side wall of the first confluence groove 1112 away from the first positioning column 1113 , and the guide block 1112 a is provided with an inclined surface.
  • the guide block 1112 a facilitates the placement of the first bus bar 40 in the first bus groove 1112 , and the guide block 1112 a can restrict the movement of the first bus bar 40 away from the housing 10 .
  • the first casing 11 is provided with a third through hole 114, and the third through hole 114 is connected to the first electrode end 2121 of the battery cell 21 after the first conductive sheet 70 passes through.
  • the first side wall 112 of the first casing 11 is provided with a groove 115 , and the design of the groove 115 can save material and improve the strength of the first side wall 112 .
  • the first housing 11 is provided with a first receiving groove 11 a, and the first receiving groove 11 a is used for receiving the plurality of cells 21 .
  • the first housing 11 is provided with a plurality of first grooves 113 , and the plurality of first grooves 113 communicate with the first receiving groove 11 a.
  • Each of the first grooves 113 is used for placing the first end of a battery cell 21 , so as to realize a limit setting for the battery cell 21 and reduce the relative displacement of the battery cell 21 and the casing 10 in the receiving cavity.
  • the shape of the first slot 113 is not limited to a circular shape, and can also be other shapes.
  • the shape of the first slot 113 can be set according to the actual shape of the battery cell 21 , for example, the battery core 21 is In the case of a rectangular parallelepiped, the first slot 113 can be set to a rectangular shape.
  • the first groove 113 is not limited to be provided in the first receiving groove 11a, the first groove 113 can be a hollow cavity of a cylinder or a cuboid, and one end of the cylinder or cuboid is fixed to the At the bottom of the first receiving groove 11a, the cylinder or cuboid is arranged in the receiving cavity, and the hollow cavity of the cylinder or cuboid can wrap or partially wrap the battery 21, which can also realize the The positioning of the battery cells 21 .
  • the first end of the battery cell 21 is the end provided with the positive electrode or the end provided with the negative electrode
  • the second end of the battery cell 21 is the end provided with the negative electrode or the end provided with the positive electrode
  • the positive and negative electrodes of the first end and the second end of the battery cell 21 are not limited, as long as the number of poles of the first end and the second end are opposite.
  • the first electrode end 2121 is disposed at the first end
  • the second electrode end 2122 is disposed at the second end.
  • the first electrode terminal 2121 and the second electrode terminal 2122 may be provided at the same end of the battery cell 21 at the same time.
  • the same end of the battery cell 21 may also be provided with a positive terminal and a negative electrode at the same time.
  • the cells 21 can be connected in series or in parallel through bus bars, which is not limited.
  • the first housing 11 is provided with a fifth through hole (not shown) and a sixth through hole (not shown), and the fifth through hole is used for the first conductive sheet 70 to pass through and then connect with the The first electrode end 2121 of the battery cell 21 is connected, and the sixth through hole is connected to the second electrode end 2122 of the battery core 21 after passing through the second conductive sheet 80 .
  • the inner side of a first side wall 112 is provided with a first fixing groove 116 and a first opening 116 a communicating with the first fixing groove 116 .
  • the first opening 116a allows one end of the circuit board 50 to be clamped into the first fixing groove 116, and the first fixing groove 116 is used for fixing one end of the circuit board 50 in the receiving cavity.
  • the inner side of the first top wall 111 is provided with a first card slot 1114 , the first card slot 1114 communicates with the first fixing slot 116 , and the first card slot 1114 is The slot 1114 is used to better secure one end of the circuit board 50 . It can be understood that the first card slot 1114 is not limited to communicate with the first fixing slot 116 , as long as the first card slot 1114 can fix one end of the circuit board 50 .
  • the first housing 11 is provided with a wire outlet 117 , and the wire outlet 117 facilitates the wires on the circuit board 50 to extend out of the wire outlet 117 to connect to other components.
  • a wire outlet 117 is provided on the first top wall 111 , and the wire outlet 117 is adjacent to the first clamping groove 1114 and the first fixing groove 116 , which is beneficial for the wire harness to extend from the wire outlet 117 to the first housing. 11 outside.
  • the second housing 12 includes a second top wall 121 and a plurality of second side walls 122 connected to the second top wall 121, the second top wall 121 and the first top wall 111 are disposed opposite to each other,
  • the second top wall 121 is provided with a second through hole 1211 , and the second through hole 1211 facilitates the connection of the external component to the electrode terminal 212 of the cell 21 .
  • the fixing method of the first casing 11 and the second casing 12 can be fixed by adhesive layer, but the fixing method of the first casing 11 and the second casing 12 is not limited to using the adhesive layer
  • Adhesive fixing can also be other fixing methods, such as welding, screwing and so on.
  • the second casing 12 is provided with a glue injection hole 126 communicating with the receiving cavity, and the glue injection hole 126 is used for injecting a resin layer into the battery cavity, so as to realize the integration of the battery cells 21 . adhesive fixation.
  • the second housing 12 is provided with a second receiving groove 12a, and the second receiving groove 12a is used for receiving the plurality of cells 21, the second receiving groove 12a
  • the accommodating groove 12a and the first accommodating groove 11a together form the accommodating cavity.
  • the second housing 12 is provided with a plurality of second grooves 123, the second grooves 123 communicate with the second receiving groove 12a, and one of the second grooves 123 is used to accommodate a The second end of the battery cell 21 realizes the position limit setting of a battery cell 21, thereby reducing the relative displacement of the battery cell 21 and the casing 10 in the accommodating cavity.
  • the inner wall of the opposite second side wall 122 is provided with a second fixing groove 125 and a second opening 125 a communicating with the second fixing groove 125 .
  • the second opening 125a allows the other end of the circuit board 50 to be clamped into the second fixing groove 125, and the second fixing groove 125 is used for fixing the other end of the circuit board 50 in the receiving cavity.
  • the inner side of the second top wall 121 is provided with a second slot 1213, the second slot 1213 communicates with the second fixing slot 125, and the second slot 1213 is used for better the other end of the fixed circuit board 50.
  • the second housing 12 is provided with a fourth through hole 124 , and the fourth through hole 124 allows the second conductive sheet 80 to pass through and communicate with the battery cell.
  • the second electrode terminal 2122 of 21 is connected.
  • the cell assembly 20 is provided in the receiving cavity, the cell assembly 20 includes a plurality of cells 21 , and the cell 21 includes a packaging shell 211 and an electrode terminal 212 disposed outside the package shell 211 , and the electrode terminal 212 includes a first electrode terminal 2121 and a second electrode terminal 2122 .
  • the battery cell 21 includes an encapsulation shell 211 and electrode terminals 212 disposed outside the encapsulation shell 211 .
  • the packaging shell 211 may serve as another electrode terminal 212.
  • the battery cell 21 includes a packaging shell 211 and a positive electrode terminal disposed outside the packaging shell 211.
  • the packaging shell 211 includes Conductive material, the encapsulation shell 211 can be used as the negative electrode terminal of the battery core 21 .
  • the positive and negative electrodes of the first electrode terminal 2121 and the second electrode terminal 2122 are not limited, the first electrode terminal 2121 can be positive or negative, and the second electrode terminal 2122 can be negative or positive, as long as It suffices that the first electrode terminal 2121 and the second electrode terminal 2122 are opposite electrodes to each other.
  • At least one electrode end 212 of the battery cell 21 when viewed along the first direction, is located in one of the first through holes 1111 of the first casing 11 , so that the first bus bar 40 can pass through the first through hole. 1111 is connected to the electrode terminal 212 of the battery cell 21 .
  • At least one electrode terminal 212 may be the negative terminal or the positive terminal of a single cell 21, and may be the negative terminal and the positive terminal of a single cell 21.
  • the negative terminal or positive terminal formed by a plurality of single cells 21 in parallel may also be a positive terminal and a negative terminal formed by a plurality of single cells 21 in parallel.
  • the first bus bar 40 connects the positive terminal and the negative terminal of the single cell 21 to the battery module, and the battery module can work normally.
  • an electrode end 212 of the battery cell 21 includes a first portion 212a and a second portion 212b, the first portion 212a and the second portion 212b are connected, and viewed along a first direction, the first portion 212a Located in the second part 212b, the first part 212a is used for connecting with the first bus bar 40, and when one end of the battery cell 21 is set in the first slot 113, the first part 212a protrudes out of the The first groove 113 is located in the first through hole 1111 , and the second portion 212b abuts against the bottom of the first groove 113 .
  • the electrode terminal 212 includes two conductive electrode posts 212c provided on the first portion 212a for electrically connecting the electrode pads.
  • the two conductive electrode posts 212c are generally electrically connected to the electrode sheets of the same polarity in the battery cell 21, and the same polarity may be the same cathode or the same anode.
  • the electrode terminal 212 is a negative electrode terminal.
  • the electrode terminal 212 is a positive electrode terminal.
  • the second portion 212b includes an insulating spacer, and the insulating spacer can insulate between the electrode terminal 212 and the encapsulation case 211 .
  • the second portion 212b is not limited to be configured as an insulating spacer, and can also be made of other substances. In other embodiments, the second portion 212b is configured to include a weak conductive sheet.
  • the shapes of the plurality of cells 21 of the cell assembly 20 are not limited. In some embodiments, the shape of the cells 21 is cylindrical, and the electrode ends 212 of the cells 21 are respectively disposed on the cells 21 .
  • Two ends of the encapsulation shell 211 of 21 namely the first electrode terminal 2121 and the second electrode terminal 2122 are disposed at opposite ends of the encapsulation shell 211 . Since the cylindrical cell 21 can be rotated in the receiving cavity, the user can set the electrodes of the cell 21 at different angles relative to the 10 according to the actual installation requirements of the first bus bar 40 , which is more convenient.
  • the shape of the battery cell 21 is a rectangular parallelepiped
  • the electrode terminal 212 of the battery core 21 is provided at one end of the packaging shell 211 of the battery cell 21 , namely the first electrode terminal 2121 and the second electrode terminal 2122 is located at the same end of the package shell 211
  • the positive and negative electrodes of the rectangular parallelepiped cells 21 can be connected by a plurality of first bus bars 40 provided outside the first shell 11 , and the battery module can work normally.
  • the battery assembly 20 includes three columns of cells 21 arranged along the second direction, and each cell 21 is arranged at the same first angle & inclination, such as the first angle & It is inclined at 45 degrees relative to the second direction, so that the distances between adjacent cells 21 are the same.
  • the lengths of the plurality of first bus bars 40 are the same, which is beneficial to simplify the assembly process.
  • the three rows of cells 21 can also be set at different angles, which is not limited.
  • the plurality of first bus bars 40 are disposed on the first top wall 111 , and the plurality of first bus bars 40 are arranged on the first top wall 111 . It is used to connect the electrode terminals 212 of the battery cells 21 on one side of the first casing 11 .
  • the plurality of first bus bars 40 are connected to the first electrode end 2121 and the second electrode end 2122 through the first through holes 1111, so as to realize the conduction between the first bus bar 40 and the cell 21,
  • the battery module can work normally.
  • the first bus bar 40 is provided with a first positioning hole (not shown), and the first positioning hole is used for the first positioning post 1113 to be inserted, so as to define the first bus bar 40 in the first bus groove 1112 .
  • the sampling assembly 60 is used to sample the voltage and temperature of the battery cell 21 .
  • the sampling assembly 60 includes a sampling wire 61 , one end of the sampling wire 61 is connected to the circuit board 50 , and the other end of the sampling wire 61 is connected to the plurality of cells 21 .
  • the sampling wire 61 includes a first sampling wire 61a, and the first sampling wire 61a is disposed on a surface of the first casing 11 away from the battery cell 21, and the first sampling wire 61a One end of 61a is connected to the circuit board 50, and the other end of the first sampling wire 61a is connected to the plurality of cells 21, so as to realize the sampling of the voltage of the cells 21 on the side of the casing 10, that is, the first sampling wire 61a is located in the first Sampling of the voltage of the cell 21 on the side of the case 11 .
  • the sampling wire 61 includes a second sampling wire 61b, the second sampling wire 61b is disposed on a surface of the second housing 12 away from the battery cell 21, and the second sampling wire 61b One end of 61b is connected to the circuit board 50, and the other end of the second sampling wire 61b is connected to the plurality of cells 21, so as to realize the sampling of the voltage of the cells 21 on the other side of the housing 10, that is Sampling of the voltage of the cells 21 on the side of the two casings 12 .
  • the sampling assembly 60 includes a reinforcing plate 62 , the reinforcing plate 62 can reduce the bending of the sampling lead 61 , prolong the service life of the sampling lead 61 , and at the same time play a role in the fixed protection of the sampling lead 61 . effect.
  • the reinforcing plate 62 includes a first reinforcing plate 62a and a second reinforcing plate 62b.
  • the first sampling wire 61a is installed on the first reinforcing plate 62a, and the first reinforcing plate 62a is installed on the first reinforcing plate 62a.
  • a surface of the first casing 11 away from the battery core 21 that is, the first reinforcing plate 62 a is mounted on the first top wall 111 of the first casing 11 .
  • the second sampling wire 61b is installed on the second reinforcing plate 62b, and the second reinforcing plate 62b is installed on a surface of the second casing 12 away from the battery core 21, that is, the second reinforcing plate
  • the plate 62b is mounted on the second top wall 121 of the second housing 12 .
  • the sampling assembly 60 includes a temperature sensor (not shown), the temperature sensor is disposed in the receiving cavity, and the temperature sensor is connected to the circuit board 50 .
  • the sampling wire 61 is provided with a plug connector (not shown), and the plug connector is convenient to connect to the circuit board 50 .
  • the circuit board 50 can be used to stabilize the voltage of the battery module and protect the normal operation of the battery module , at the same time, when the battery module is in the process of discharging, the circuit board 50 will detect the voltage of the battery, and when the battery power is too low, it will stop outputting power to protect the battery. During the charging process, when the battery is fully charged, the circuit board 50 can automatically disconnect the charging circuit to prevent the battery from being damaged due to overcharging.
  • the circuit board 50 is disposed in the receiving cavity, one end of the first conductive sheet 70 is connected to the circuit board 50 , and the other end of the first conductive sheet 70 is connected to the first electrode end of the battery cell 21 2121, one end of the second conductive sheet 80 is connected to the circuit board 50, and the other end of the second conductive sheet 80 is connected to the second electrode terminal 2122 of the battery cell 21, so as to realize the connection between the circuit board 50 and the electric circuit board 50.
  • the core 21 is electrically connected.
  • the circuit board 50 is located on one side of the cell 21 and the two ends of the circuit board 50 are perpendicular to the first casing 11 and the second casing 12 respectively.
  • the second conductive sheet 80 conducts the circuit board 50 and the cell 21, and at this time, the lengths of the used first conductive sheet 70 and the second conductive sheet 80 are shorter.
  • the position of the circuit board 50 is not limited here, as long as the lengths of the first conductive sheet 70 and the second conductive sheet 80 are short, for example, the circuit board 50 is located on the side of the cell 21 , and at the same time satisfy the vertical sides of the first casing 11 and the second casing 12 .
  • the circuit board 50 is provided with a plug port 501 , and the plug port 501 is used for the plug connector to be plugged in, so as to realize the connection between the sampling wire 61 and the circuit board 50 .
  • the circuit board 50 is provided with an external wire 502 , and the external wire 502 extends from the wire outlet 117 on the first housing 11 to connect to other components.
  • one end of the circuit board 50 is provided with a first clamping block 503, and the first clamping block 503 can be clamped in the first clamping slot 1114, so that one end of the circuit board 50 can be connected to the first clamping block 503.
  • the first housing 11 is fixed.
  • the other end of the circuit board 50 is provided with a second blocking block 504 , and the second blocking block 504 can be clamped in the second blocking slot 1213 , so as to connect the other end of the circuit board 50 to the second blocking block 504 .
  • the second casing 12 is fixed.
  • the first baffle 90 is covered on a surface of the first casing 11 away from the battery cell 21 , that is, the first baffle 90 .
  • the first baffle 90 is used to protect the first bus bar 40 provided on the first top wall 111 and reduce the contact between the first bus bar 40 and external components , and at the same time play a sealing role on the side of the first casing 11 of the battery module.
  • the surface of the first baffle 90 away from the cell 21 is lower than the first top wall 111 , preferably, the surface of the first baffle 90 away from the cell 21 is lower than the first top wall 111 by 0.5 mm.
  • a surface of the baffle 90 away from the cell 21 is lower than the first top wall 111 by at least 0.3 mm.
  • the first housing 11 preferentially collides with the ground, which can protect the first baffle 90 , reduce the damage to the first bus bar 40 and reduce the impact on the first bus bar 40 caused by the impact of the first bus bar 40 . .
  • the use of the first baffle plate 90 is not limited to other methods, such as adding resin to the first top wall 111.
  • layer such as pouring glue
  • the first bus bar 40 is protected by the solidified glue, and at the same time, when the battery module falls to the ground, the solidified glue can play a buffering role, which is more effective for the first bus bar 40. to protection.
  • the resin layer bonds and fixes the plurality of battery cells 21, and/or, bonds and fixes the plurality of battery cells 21 and the first housing 11, and/or, bonds and fixes the plurality of battery cells 21 to the first housing 11.
  • the plurality of cells 21 are bonded and fixed to the second casing 12 .
  • the battery module includes a plurality of second bus bars 110 , and the plurality of second bus bars 110 are disposed on the second top wall 121 , the plurality of second bus bars 110 are used to connect electrodes of the cells 21 on one side of the second casing 12 .
  • the electrodes of the cylindrical cells 21 can be arranged at opposite ends, and the plurality of first bus bars 40 are connected to the first electrode ends 2121 of the cylindrical cells 21 through the first through holes 1111 .
  • the plurality of second bus bars 110 are connected to the second electrode ends 2122 of the cylindrical cells 21 through the second through holes 1211 to realize the connection between the first bus bars 40 , the second bus bars 110 and the cells 21 .
  • the battery module can work normally.
  • connection between the first bus bar 40 and the second bus bar 110 is not limited to the positive and negative electrodes of the battery cells 21.
  • the second bus bar The row 110 is connected to the positive electrode of the battery cell 21, and the battery module can work normally.
  • the first bus bar 40 is connected to the positive electrode of the battery cell 21
  • the second bus bar 110 is connected to the negative electrode of the battery cell 21 , and the battery module can work normally.
  • the second bus bar 110 can also be similar to the first bus bar 40
  • the second bus bar 110 is connected to the positive and negative electrodes of the rectangular parallelepiped cells 21 whose electrodes are at the same end, and the battery module can work normally .
  • the second top wall 121 of the second housing 12 is provided with a plurality of second confluence grooves 1212 , one of the second confluence grooves 1212 communicates with at least two of the second through holes 1211 , one The second bus bar 110 is disposed in one of the second bus grooves 1212 .
  • the second bus slot 1212 is used for placing the second bus bar 110 .
  • At least one electrode end 212 of the battery cell 21 when viewed in a direction opposite to the first direction, is located in one of the second through holes 1211 of the second casing 12 , which is convenient for the second bus bar 110 It is connected to the electrode terminal 212 of the battery cell 21 through the second through hole 1211 .
  • the direction opposite to the first direction refers to the direction perpendicular to the second top wall 121 of the second casing 12 .
  • the second baffle 100 is covered on a surface of the second casing 12 away from the battery cell 21 , that is, the second baffle 100 is covered at The second top wall 121 of the second housing 12 .
  • the second baffle 100 is used to protect the second bus bar 110 disposed on the second top wall 121 , reduce the contact between the second bus bar 110 and external components, and at the same time protect the second casing 12 of the battery module. to the sealing effect.
  • a surface of the second baffle 100 away from the cell 21 is lower than the second top wall 121 , preferably, a surface of the second baffle 100 away from the cell 21 is lower than the second top wall 121 by 0.5 mm, preferably , a surface of the second baffle 100 away from the cell 21 is lower than the second top wall 121 by at least 0.3 mm.
  • the second casing 12 preferentially collides with the ground, which can protect the second baffle 100 and reduce the impact on the second bus bar 110 caused by the second bus bar. 110 damage.
  • the use of the second baffle plate 100 is not limited to other methods, such as: pouring glue into the second top wall 121 , using the solidified glue to protect the second bus bar 110 , and at the same time, when the battery module falls to the ground, the solidified glue can play a buffering role, and more effectively protect the second bus bar 110 .
  • the assembly process of the battery module in this embodiment includes:
  • Step S1 installing the first bus bar 40 on the first housing 11;
  • Step S2 accommodating the circuit board 50 and the plurality of cells 21 in the first casing and the second casing;
  • Step S3 the external wires 502 on the circuit board 50 protrude from the first housing 11, and the first conductive sheet 70 protrudes from the first housing 11;
  • Step S4 welding the first bus bar 40 and the electrode end of the battery cell 21;
  • Step S5 disposing the first baffle 100 on the first casing 11 to cover the electrode ends of the cells 21 and the first bus bar 40 .
  • the battery module assembly process further includes step S6 : connecting the sampling assembly 60 to the first bus bar 40 .
  • the battery module assembly process includes step S7: disposing the first baffle 100 on the first casing 11 to cover the electrode ends of the battery cells 21 , the sampling assembly 60 and the first bus bar 40 .
  • the battery module assembly process further includes step S8 : disposing a flowable resin outside the first casing 10 and then fixing to form a resin layer, the resin layer is used to attach the first bus bar 40 and the first housing 10 are fixed.
  • the first conductive sheet 70 extends vertically from the first casing 11, and the vertically extended first conductive sheet 70 is convenient for bending processing in subsequent processes, and at the same time, the number of the first conductive sheet can be reduced.
  • the contact between 70 and the first housing 11 reduces damage to the first conductive sheet 70 .
  • the step S1 further includes installing the second bus bar 40 on the second housing 12 .
  • the step 3 further includes extending the second conductive sheet 80 from the second housing 12 .
  • the step 3 further includes the second conductive sheet 80 extending vertically from the first casing 12 , and the vertically extending second conductive sheet 80 is convenient for bending processing in subsequent processes, and at the same time, it can reduce the number of The contact between the two conductive sheets 80 and the first housing 12 reduces damage to the second conductive sheets 80 .
  • the step 4 further includes welding and connecting the second bus bar 40 and the electrode ends of the battery cells 21 .
  • step S6 of the battery module assembly process further includes connecting the sampling assembly 60 to the second bus bar 40 .
  • the step S7 further includes disposing the second baffle 40 on the second casing 11 to cover the electrode ends of the cells 21 and the second bus bar 40 .
  • the step S8 further includes disposing a fluid resin outside the second housing 10 and then fixing to form a resin layer, the resin layer is used to connect the second bus bar 40 and the second The housing 12 is fixed.
  • the casing 10 , the cell assembly 20 and the first bus bar 40 are provided.
  • the housing 10 is provided with a receiving cavity
  • the housing 10 includes a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 are fixed, and the first housing 11 and the second casing 12 are enclosed to form the receiving cavity.
  • the cell assembly 20 is arranged in the receiving cavity.
  • the cell assembly 20 includes a plurality of cells 21 .
  • the cell 21 includes an encapsulation shell 211 and an electrode end 212 disposed outside the encapsulation shell 211 .
  • the electrode end 212 includes a first electrode end 2121 and a second electrode end 212 . Two electrode terminals 2122 .
  • the first housing 11 includes a first top wall 111 and a plurality of first side walls 112 connected to the first top wall 111 , and the first top wall 111 is provided with a first through hole 1111 .
  • the plurality of first bus bars 40 are disposed on the first top wall 111 , and the plurality of first bus bars 40 are connected to the first electrode terminals 2121 through the first through holes 1111 .
  • the first bus bars 40 are directly disposed on the On the first top wall 111 of the first casing 11, when the battery module is assembled, the first casing 11 and the second casing 12 only need to be directly fixed to realize the connection between the first bus bar 40 and the battery core 21. The connection improves the assembly efficiency of the battery module and facilitates assembly.
  • the present application also provides an embodiment of an electrical device, the electrical device includes the battery module described above, and the electrical device includes but is not limited to two-wheeled electric vehicles, energy storage devices, hand-held power tools, etc., batteries
  • the electrical device includes but is not limited to two-wheeled electric vehicles, energy storage devices, hand-held power tools, etc., batteries
  • the function and structure of the module reference may be made to the above-mentioned embodiments, which will not be repeated here.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请实施例涉及电池装置技术领域，特别公开了一种电池模组和用电设备，包括：壳体、电芯组件和多个第一汇流排。壳体设有收容腔，所述壳体包括第一壳体和第二壳体，所述第一壳体和所述第二壳体相固定，所述第一壳体和所述第二壳体围合形成所述收容腔。电芯组件设于所述收容腔，所述电芯组件包括多个电芯，所述电芯包括封装壳和设于封装壳外的电极，所述电极包括第一电极端和第二电极端。第一壳体包括第一顶壁和连接于所述第一顶壁的多个第一侧壁，所述第一顶壁设有第一通孔。多个第一汇流排，设置于所述第一顶壁，所述多个第一汇流排通过所述第一通孔与所述第一电极端连接。通过上述方式，本申请实施例能够提高电池模组的组装效率，装配方便。

Description

一种电池模组和用电设备
相关申请的交叉参考
本申请要求于2021年03月22日提交中国专利局，申请号为202120583750.1，名称为“一种电池模组和用电设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及电池装置技术领域，特别是涉及一种电池模组和用电设备。
背景技术
目前动力锂电池行业发展非常迅速，其应用已经扩展到了电动大巴、电动小汽车、微公交和储能等领域。电池模块的模组成组效率、结构强度、安全性能要求也越来越高。
但是，本申请的发明人在实现本申请的过程中，发现现有的电池模组通常设置有汇流排和外壳，需要通过人工将汇流排与电芯进行连接，之后再利用外壳将电芯封装，电池模组的组装效率较低，装配不方便。
申请内容
鉴于上述问题，本申请实施例提供了一种电池模组和用电设备提升了电池模组组装效率。
根据本申请的一个方面，提供了一种电池模组，包括：壳体、电芯组件和多个第一汇流排。其中，所述壳体设有收容腔，所述壳体包括第一壳体和第二壳体，所述第一壳体和所述第二壳体相固定，所述第一壳体和所述第二壳体围合形成所述收容腔，所述电芯组件设于所述收容腔，所述电芯组件包括电芯，所述电芯包括封装壳和设于封装壳外的电极，所述电极包括第一电极端和第二电极端，第一壳体包括第一顶壁和连接 于所述第一顶壁的多个第一侧壁，所述第一顶壁设有第一通孔，多个第一汇流排，设置于所述第一顶壁，所述多个第一汇流排通过所述第一通孔与所述第一电极端连接。在电池组装时，只需将第一壳体和第二壳体直接固定，即可实现第一汇流排和电芯的连接，提高了电池模组的组装效率，装配方便。
在一种可选的方式中，所述第二壳体包括第二顶壁和连接于所述第二顶壁的多个第二侧壁，所述第二顶壁和所述第一顶壁相对设置，所述第二顶壁设有第二通孔；所述第一电极端和所述第二电极端设于所述封装壳相对的两端，所述电池模组包括多个第二汇流排，所述多个第二汇流排通过所述第二通孔与所述第二电极端连接。多个第二汇流排连接电芯的第二电极端，实现电池模组与多个电芯的电导通，电池模组能正常工作。
在一种可选的方式中，所述第一电极端和所述第二电极端设于所述封装壳的同一端，所述多个第一汇流排连接于所述第二电极端。多个第一汇流排连接电芯的第二电极端，实现在仅设置有第一汇流排的情况下，电池模组与多个电芯电导通，电池模组能正常工作。
在一种可选的方式中，所述第一壳体的第一顶壁设置有多个第一汇流槽，一所述第一汇流槽连通至少两个所述第一通孔，一所述第一汇流排设置于一所述第一汇流槽，沿第一方向观察，所述电芯的至少一电极位于一所述第一通孔。多个第一汇流排可通过与第一通孔内的至少一电极连接。
在一种可选的方式中，所述第二壳体的第二顶壁设置有多个第二汇流槽，一所述第二汇流槽连通至少两个所述第二通孔，一所述第二汇流排设置于一所述第二汇流槽，沿与所述第一方向相反方向观察，所述电芯的至少一电极位于一所述第二通孔。多个第二汇流排可通过与第二通孔内的至少一电极连接。
在一种可选的方式中，所述第一壳体设置有第一收容槽；所述第二壳体设置有第二收容槽，所述第一收容槽和所述第二收容槽共同形成所述收容腔。
在一种可选的方式中，所述第一壳体设置有多个第一槽，所述多个第一槽连通于所述第一收容腔；所述第二壳体设置有多个第二槽，所述第二槽连通于所述第二收容腔，一所述电芯的第一端设置于一所述第一槽，一所述电芯的第二端设置于一所述第二槽，所述第一电极端设置于所述第一端，所述第二电极端设置于所述第二端。多个第一槽和多个第二槽可限定多个电芯的位置，其中，一所述第一槽和一所述第二槽限定一所述电芯的位置，降低电芯在收容腔内与壳体产生相对位移。
在一种可选的方式中，所述第一汇流排设置有第一定位孔；所述第一壳体远离所述电芯方向延伸有第一定位柱，所述第一定位柱插接于所述第一定位孔内。所述第一定位孔和所述第一定位柱的设置可将第一汇流排限定在第一壳体的第一顶壁上，限制第一汇流排的移动。
在一种可选的方式中，所述第一汇流槽远离所述第一定位柱的侧壁设置有导向块，且所述导向块设置有倾斜面。所述导向块可限制第一汇流排沿远离壳体方向运动。
在一种可选的方式中，所述电池模组包括电路板，所述电路板设置于所述收容腔内，所述电路板与所述多个电芯连接；所述电池模组包括采样组件，所述采样组件包括采样导线，所述采样导线一端连接于所述电路板，所述采样导线的另一端连接于所述多个电芯的电极。所述采样组件可对电芯的电压和温度进行采样。
在一种可选的方式中，所述采样导线包括第一采样导线，所述第一采样导线设置于所述第一壳体远离所述电芯的一表面，所述第一采样导线一端均与所述电路板连接，所述第一采样导线的另一端连接所述多个电芯。所述第一采样导线对位于壳体一侧的电芯的电压进行采样，即位于第一壳体一侧的电芯的电压进行采样。
在一种可选的方式中，所述采样导线包括第二采样导线，所述第二采样导线设置于所述第二壳体远离所述电芯的一表面，所述第二采样导线的一端与所述电路板连接，所述第二采样导线的另一端连接所述多个电芯。所述第二采样导线对位于壳体另一侧的电芯的电压进行采样，即位于第二壳体一侧的电芯的电压进行采样。
在一种可选的方式中，所述电池模组包括第一导电片和第二导电片，所述第一导电片一端连接于所述电路板，所述第一导电片的另一端连接所述电芯的第一电极端，所述第二导电片一端连接于所述电路板，所述第二导电片的另一端连接所述电芯的第二电极端。所述第一导电片和第二导电片实现将电路板和电芯电连接。
在一种可选的方式中，所述第一壳体设置有第三通孔，所述第三通孔供所述第一导电片穿过；所述第二壳体设置有第四通孔，所述第四通孔供所述第二导电片穿过。所述第三通孔和第四通孔可方便第一导电片和第二导电片穿过后与电芯的电极连接。
在一种可选的方式中，所述第一壳体设置有第五通孔和第六通孔，所述第五通孔供所述第一导电片穿过，所述第六通孔供所述第二导电片穿过。所述第五通孔和第六通孔方便第一导电片和第二导电片穿过第一壳体后与电芯的电极连接。
在一种可选的方式中，所述采样导线设置有插接头；所述电路板设置有插接口，所述插接头插接于所述插接口内。所述插接头和插接口的设置，方便采样导线和电路板直接连接和分离。
在一种可选的方式中，所述第一壳体的一相对第一侧壁的内侧设置有第一固定槽及连通所述第一固定槽的第一开口；所述第二壳体的一相对第二侧壁的内侧设置有第二固定槽及连通所述第二固定槽的第二开口，所述电路板的一端自所述第一开口卡入所述第一固定槽，所述电路板的另一端自所述第二开口卡入所述第二固定槽。所述第一固定槽和第二固定槽的设置，可将电路板固定于壳体的收容腔内。
在一种可选的方式中，所述电池模组包括树脂层，所述树脂层将所述多个电芯粘结固定，和/或，将所述多个电芯与所述第一壳体粘结固定，和/或，将所述多个电芯与所述第二壳体粘结固定。
在一种可选的方式中，所述电池模组包括第一挡板和第二挡板，所述第一挡板盖设于所述第一壳体背离所述电芯的一表面，所述第二挡板盖设于所述第二壳体背离所述电芯的一表面。所述第一挡板用于保护第一顶壁的第一汇流排，减少第一汇流排与外界部件的接触，同时对电池 模组的第一壳体一侧起到密封作用，所述第二挡板用于保护设于第二顶壁的第二汇流排，减少第二汇流排与外界部件的接触，同时对电池模组的第二壳体一侧起到密封作用。
根据本申请的另一个方面，提供了一种用电设备，包括如上所述的电池模组。
本申请实施例的有益效果是：本申请实施例设置有壳体、电芯组件和第一汇流排。壳体设有收容腔，所述壳体包括第一壳体和第二壳体，所述第一壳体和所述第二壳体相固定，所述第一壳体和所述第二壳体围合形成所述收容腔。电芯组件设于收容腔，电芯组件包括多个电芯，电芯包括封装壳和设于封装壳外的电极，电极包括第一电极端和第二电极端。其中，第一壳体包括第一顶壁和连接于第一顶壁的多个第一侧壁，第一顶壁设有第一通孔。此外，多个第一汇流排设置于第一顶壁，多个第一汇流排通过第一通孔与第一电极端连接，这样设置，由于第一汇流排直接设置于第一壳体的第一顶壁上，在电池模组组装时，只需将第一壳体和第二壳体直接固定，即可实现第一汇流排和电芯的连接，提高了电池模组的组装效率，装配方便。
附图说明
为了更清楚地说明本申请具体实施例或现有技术中的技术方案，下面将对具体实施例或现有技术描述中所需要使用的附图作简单地介绍。在所有附图中，类似的元件或部分一般由类似的附图标记标识。附图中，各元件或部分并不一定按照实际的比例绘制。
图1是本申请实施例电池模组的整体组装示意图；
图2是本申请实施例电池模组的部分结构分解示意图；
图3是本申请实施例电池模组的一部分结构的分解示意图；
图4是本申请实施例电池模组的第一壳体和第一汇流排的分解示意图；
图5是图4的A部分结构放大示意图；
图6是本申请实施例电池模组的第一壳体和电路板的分解示意图；
图7是图6的C部分结构放大示意图；
图8是本申请实施例电池模组的第一壳体的局部剖面示意图；
图9是本申请实施例电池模组的第一壳体和第二壳体的分解示意图；
图10是本申请实施例电池模组的第二壳体的整体结构示意图；
图11是本申请实施例电池模组的第二壳体的局部剖面示意图；
图12是本申请实施例电池模组的单个电芯的结构示意图；
图13是本申请实施例电池模组的部分结构俯视图；
图14是本申请实施例电池模组的一部分结构的分解示意图；
图15是本申请实施例电池模组的部分结构的分解示意图；
图16是图14的E部分结构放大示意图；
图17是图14的B部分结构放大示意图；
图18是本申请实施例电池模组的部分结构组装示意图；
图19是本申请电池模组一实施例的电路板的结构示意图；
图20是本申请电池模组的另一实施例的部分结构分解示意图；
图21是本申请电池模组的另一实施例的第二壳体和第二汇流排的分解示意图；
图22是本申请实施例电池模组的组装工序流程图。
附图说明：10、壳体；11、第一壳体；11a、第一收容槽；11b、第三侧壁；11c、第四侧壁；11d、第五侧壁；11e、第六侧壁；111、第一顶壁；1111、第一通孔；1112、第一汇流槽；1112a、导向块；1113、第一定位柱；1114、第一卡槽；112、多个第一侧壁；113、多个第一槽；114、第三通孔；115、凹槽；116、第一固定槽；116a、第一开口；117、出线口；12、第二壳体；12a、第二收容槽；121、第二顶壁；1211、第二通孔；1212、第二汇流槽；1213、第二卡槽；122、多个第二侧壁；123、多个第二槽；124、第四通孔；125、第二固定槽；125a、第二开口；126、注胶孔；20、电芯组件；21、多个电芯；211、封装壳；212、电极端；212a、第一部分；212b、第二部分；212c、导电极柱；2121、第一电极端；2122、第二电极端；40、多个第一汇流排；50、电路板；501、插接口；502、外接线；503、第一卡块；504、第二卡块；60、采样组件；61、采样导线；61a、第一采样导线；61b、第二采样导线；62、补强板；62a、第一补强板；62b、第二补强板；70、第一导电片；80、 第二导电片；90、第一挡板；100、第二挡板；110、多个第二汇流排。
具体实施方式
为了便于理解本申请，下面结合附图和具体实施例，对本申请进行更详细的说明。需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本说明书中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是用于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
为了更好的对电池模组的结构进行说明，将结合X、Y、Z坐标轴对电池模组的结构进行叙述，其中，X、Y、Z坐标轴两两垂直，第一方向为Z轴的正方向，第二方向为Y轴的正方向，第三方向为X轴的正方向。
请参阅图1-3，电池模组01包括壳体10、电芯组件20和多个第一汇流排40。其中，电芯组件20的多个电芯21设置于壳体10内，第一汇流排40设置于壳体10的外侧并与多个电芯21连接。在电池模组组装时，设于壳体10外侧的第一汇流排40直接与电芯21连接，提高了电池模组的组装效率，装配方便。其中，电池模组01可设置于用电设备内，在用电设备内可起到充放电的作用。
电池模组01还包括树脂层(图未示)、电路板50、采样组件60、第一导电片70、第二导电片80、第一挡板90和第二挡板100。其中，树脂层设置于多个电芯21之间，电路板50设置与壳体10内，采样组件60和电路板50连接，且采样组件60与第一汇流排40连接，第一导 电片70将电路板50和多个电芯21的一电极端212连接，第二导电片80将电路板50和多个电芯21的另一电极端212连接，第一挡板90和第二挡板100盖设于壳体10的外表面。
具体的，对于上述壳体10，如图1所示，所述壳体10设置有收容腔(图未示)，所述壳体10包括第一壳体11和第二壳体12，所述第一壳体11和第二壳体12相固定，所述第一壳体11和所述第二壳体12围合形成所述收容腔。所述收容腔用于收容电芯组件20。
对于上述第一壳体11，如图2-4所示，所述第一壳体11包括第一顶壁111和连接于所述第一顶壁111的多个第一侧壁112，所述第一顶壁111设有第一通孔1111，所述第一通孔1111方便第一汇流排40与电芯21连接。优选的，第一通孔1111贯穿第一顶壁111。优选的，所述第一壳体11包括第一顶壁111和连接于所述第一顶壁111的四个第一侧壁112，第一顶壁111和四个第一侧壁112围合形成第一收容槽11a。
在一些实施例中，如图2和图6所示，所述第一壳体11包括沿第二方向相对设置的第三侧壁11b和第四侧壁11c和沿第三方向相对设置的第五侧壁11d和第六侧壁11e,所述第三侧壁11b、第五侧壁11d、第四侧壁11c和第六侧壁11e依次连接且与所述第一顶壁111围合形成第一收容槽11a。，优选的，第一定位柱1113和第一定位孔配合将第一汇流排40固定在在第一壳体11的第一顶壁111上，限制第一汇流排40的移动。可以理解的是：第一定位柱1113不限于设于第一壳体11，第一定位孔不限于设于第一汇流排40，也可以为设置于其他位置，只要满足将第一汇流排40固定在第一壳体11的第一顶壁111上即可，例如：第一定位柱1113设置于所述第一汇流排40上，所述第一定位孔设置于第一顶壁111上。在一些实施例中，如图4和图5所示，所述第一汇流槽1112远离所述第一定位柱1113的侧壁设置有导向块1112a，且导向块1112a设置有倾斜面。所述导向块1112a方便第一汇流排40放置于第一汇流槽1112内，所述导向块1112a可限制第一汇流排40沿远离壳体10方向运动。
在一些实施例中，所述第一壳体11设置有第三通孔114，所述第三 通孔114供第一导电片70穿过后与电芯21的第一电极端2121连接。
在一些实施例中，所述第一壳体11的第一侧壁112设置有凹槽115，所述凹槽115的设计可节省材料同时提升第一侧壁112的强度。
在一些实施例中，如图6-图8所示，所述第一壳体11设置有第一收容槽11a，所述第一收容槽11a用于收容所述多个电芯21。
在一些实施例中，所述第一壳体11设置有多个第一槽113，所述多个第一槽113连通于所述第一收容槽11a。每一所述第一槽113用于放置一电芯21的第一端，实现对一所述电芯21的限位设置，降低电芯21在收容腔内与壳体10产生相对位移。
可以理解的是：所述第一槽113的形状不限于圆形状，也可以为其它形状，所述第一槽113的形状可根据实际的电芯21的形状设定，例如：电芯21为长方体时，所述第一槽113可设定为长方形。同时，所述第一槽113不限定设于所述第一收容槽11a内，所述第一槽113可为一圆柱体或长方体的中空腔，所述圆柱体或长方体的一端固定于所述第一收容槽11a的槽底，所述一圆柱体或长方体设于所述收容腔内，所述一圆柱体或长方体的中空腔可包裹或部分包裹一所述电芯21，同样可实现对所述电芯21的定位。
需要说明的是：所述电芯21的第一端为设置有正极的一端或为设置有负极的一端，所述电芯21的第二端为设置有负极的一端或为设置有正极的一端，所述电芯21的第一端和第二端的正负极不作限定，只要满足第一端和第二端的极数相反即可。其中，第一电极端2121设置于第一端，第二电极端2122设置于第二端。在其他的一些实施例中，所述电芯21的同一端也可以同时设置第一电极端2121和第二电极端2122，比如，所述电芯21的同一端也可以同时设置正极端和负极端，所述电芯21之间可以通过汇流排串联连接或者是并联连接，不作限制。
在一些实施例中，所述第一壳体11设置有第五通孔(图未示)和第六通孔(图未示)，所述第五通孔供第一导电片70穿过后与电芯21的第一电极端2121连接，所述第六通孔供第二导电片80穿过后与电芯21的第二电极端2122连接。
在一些实施例中，一第一侧壁112的内侧设置有第一固定槽116以及连通第一固定槽116的第一开口116a。所述第一开口116a供电路板50的一端卡入所述第一固定槽116内，第一固定槽116用于将电路板50的一端固定于收容腔内。
如图8所示，在一些实施例中，所述第一顶壁111的内侧设置有第一卡槽1114，所述第一卡槽1114连通所述第一固定槽116，所述第一卡槽1114用于更好的固定电路板50的一端。可以理解的是：所述第一卡槽1114不限于与所述第一固定槽116连通，只要第一卡槽1114能实现固定电路板50的一端即可。
在一些实施例中，如图1和图8所示，所述第一壳体11上设置有出线口117，所述出线口117便于电路板50上的导线伸出出线口117外接其它部件。优选的，第一顶壁111上设有出线口117，所述出线口117邻近所述第一卡槽1114和所述第一固定槽116，有利于线束从出线口117延伸出第一壳体11外。
对于上述第二壳体12，如图9-11所示，所述第二壳体12与所述第一壳体11固定。所述第二壳体12包括第二顶壁121和连接于所述第二顶壁121的多个第二侧壁122，所述第二顶壁121和所述第一顶壁111相对设置，所述第二顶壁121设有第二通孔1211,所述第二通孔1211方便外部件与电芯21的电极端212连接。
可以理解的是：所述第一壳体11与第二壳体12的固定方式可为利用胶层粘结固定，但第一壳体11与第二壳体12的固定方式不限于利用胶层粘结固定，也可以为其他固定方式，例如：焊接、螺接等等。
在一些实施例中，所述第二壳体12设置有与所述收容腔连通的注胶孔126，所述注胶孔126用于供树脂层注入所述电池腔内，实现对电芯21的粘结固定。
在一些实施例中，如图8和图9所示，所述第二壳体12设置有第二收容槽12a，第二收容槽12a用于收容所述多个电芯21，所述第二收容槽12a与所述第一收容槽11a共同形成所述收容腔。
在一些实施例中，所述第二壳体12设置有多个第二槽123，所述第 二槽123连通于所述第二收容槽12a，一所述第二槽123用于放置一所述电芯21的第二端，实现对一电芯21的限位设置，降低电芯21在收容腔内与壳体10产生相对位移。
在一些实施例中，所述一相对第二侧壁122的内壁设置有第二固定槽125及连通所述第二固定槽125的第二开口125a。所述第二开口125a供电路板50的另一端卡入所述第二固定槽125内，第二固定槽125用于将电路板50的另一端固定于收容腔内。
在一些实施例中，所述第二顶壁121的内侧设置有第二卡槽1213，所述第二卡槽1213连通所述第二固定槽125，所述第二卡槽1213用于更好的固定电路板50的另一端。
在一些实施例中，如图2和图10所示，所述第二壳体12设置有第四通孔124，所述第四通孔124供所述第二导电片80穿过后与电芯21的第二电极端2122连接。
对于上述电芯组件20，如图1和图12所示，所述电芯组件20设于所述收容腔，所述电芯组件20包括多个电芯21，所述电芯21包括封装壳211和设于所述封装壳211外的电极端212，所述电极端212包括第一电极端2121和第二电极端2122。在其他实施例中，所述电芯21包括封装壳211和设于所述封装壳211外的电极端212。在一些实施例中，所述封装壳211可以作为另外一个电极端212，例如，所述电芯21包括封装壳211和设于所述封装壳211外的正极电极端，所述封装壳211包括导电材料，所述封装壳211可作为电芯21的负极电极端。
需要说明的是：所述第一电极端2121和第二电极端2122的正负极不作限定，第一电极端2121可为正极或负极，所述第二电极端2122可为负极或正极，只要满足第一电极端2121和第二电极端2122互为相反电极即可。
在一些实施例中，沿第一方向观察，所述电芯21的至少一电极端212位于第一壳体11的一所述第一通孔1111，方便第一汇流排40通过第一通孔1111与电芯21的电极端212连接。
可以理解的是：“至少一电极端212”可为单个电芯21的负极端或 正极端，可为单个电芯21的负极端和正极端，电芯21的数量可不作限定，也可为由多个单个电芯21并联形成的负极端或正极端，也可为由多个单个电芯21并联形成的正极端和负极端。第一汇流排40连接单个电芯21的正极端和负极端电池模组可正常工作。
在一些实施例中，所述电芯21的一电极端212包括第一部分212a和第二部分212b，所述第一部分212a和第二部分212b连接，且沿第一方向观察，所述第一部分212a位于所述第二部分212b内，所述第一部分212a用于与所述第一汇流排40连接，所述电芯21一端设置于所述第一槽113时，所述第一部分212a伸出所述第一槽113并位于所述第一通孔1111内，所述第二部分212b抵接于所述第一槽113的槽底。电极端212包括设于所述第一部分212a用于电连接电极片的两个导电极柱212c。
优选的，所述两个导电极柱212c通常电连接于所述电芯21内同一极性的电极片，同一极性可为同一阴极，也可为同一阳极。当所述两个导电极柱212c电连接于同一阴极时，所述电极端212为负极电极端。当所述两个导电极柱212c电连接于同一阳极时，所述电极端212为正极电极端。
在一些实施例中，所述第二部分212b包括绝缘垫片，所述绝缘垫片可使得电极端212和封装壳211之间绝缘。所述第二部分212b不限于设置为绝缘垫片，也可以为其他物质，在其他的一些实施例中，所述第二部分212b设置包括弱导电片。需要说明的是：电芯组件20的多个电芯21的形状不作限定，在一些实施例中，所述电芯21的形状为圆柱状，所述电芯21的电极端212分设于电芯21的封装壳211的两端，即第一电极端2121和第二电极端2122设于所述封装壳211相对的两端。由于圆柱状电芯21可在所述收容腔内转动，用户可根据所述第一汇流排40的实际安装需要将所述电芯21的电极相对10设于不同的角度，较为方便。但在一些实施例中，所述电芯21的形状为长方体状，所述电芯21的电极端212设于电芯21的封装壳211的一端，即第一电极端2121和第二电极端2122设于所述封装壳211的同一端，此时可利用设 于第一壳体11外的多个第一汇流排40连接长方体状电芯21的正极和负极，电池模组可正常工作。
本一些实施例中，如图13所示，所述电池组件20包括沿第二方向设置的三列电芯21，每个电芯21以相同的第一角度&倾斜设置，比如第一角度&相对第二方向以45度倾斜，以使得相邻电芯21之间的距离相同。所述多个第一汇流排40的长度相同，有利于简化组装工序。在其他的实施例中，也可以将三列电芯21设置为不同的角度，不作限制。
对于上述多个第一汇流排40，如图2、图4和图5所示，所述多个第一汇流排40设置于所述第一顶壁111，所述多个第一汇流排40用于将位于第一壳体11一侧的电芯21的电极端212连接起来。
在一些实施例中，所述多个第一汇流排40通过第一通孔1111连接第一电极端2121和第二电极端2122，实现第一汇流排40和电芯21之间的导通，所述电池模组可正常工作。
在一些实施例中，所述第一汇流排40设置有第一定位孔(图未示)，所述第一定位孔供所述第一定位柱1113插接，实现将第一汇流排40限定于所述第一汇流槽1112内。
对于上述采样组件60，如图2、图14-16所示，所述采样组件60用于对电芯21的电压和温度进行采样。采样组件60包括采样导线61，所述采样导线61一端连接于所述电路板50，所述采样导线61的另一端连接于所述多个电芯21。
在一些实施例中，所述采样导线61包括第一采样导线61a，所述第一采样导线61a设置于所述第一壳体11远离所述电芯21的一表面，所述第一采样导线61a的一端与所述电路板50连接，所述第一采样导线61a的另一端连接所述多个电芯21，实现对壳体10一侧的电芯21的电压的采样，即位于第一壳体11一侧的电芯21的电压的采样。
在一些实施例中，所述采样导线61包括第二采样导线61b，所述第二采样导线61b设置于所述第二壳体12远离所述电芯21的一表面，所述第二采样导线61b的一端与所述电路板50连接，所述第二采样导线61b的另一端连接所述多个电芯21，实现对壳体10另一侧的电芯21的 电压的采样，即位于第二壳体12一侧的电芯21的电压的采样。
在一些实施例中，所述采样组件60包括补强板62，所述补强板62可减少采样导线61的弯折，延长采样导线61的使用寿命，同时对采样导线61起到固定保护的作用。所述补强板62包括第一补强板62a和第二补强板62b，所述第一采样导线61a安装于所述第一补强板62a，所述第一补强板62a安装于所述第一壳体11远离所述电芯21的一表面，即第一补强板62a安装于所述第一壳体11的第一顶壁111。所述第二采样导线61b安装于所述第二补强板62b，所述第二补强板62b安装于所述第二壳体12远离所述电芯21的一表面，即第二补强板62b安装于所述第二壳体12的第二顶壁121。
在一些实施例中，所述采样组件60包括温度传感器(图未示)，所述温度传感器设置于所述收容腔内，所述温度传感器连接于所述电路板50。
在一些实施例中，所述采样导线61设置有插接头(图未示)，所述插接头方便连接所述电路板50。
对于上述电路板50、第一导电片70和第二导电片80，如图2、图14和图17所示，所述电路板50可用于稳定电池模组的电压，保护电池模组正常工作，同时，当所述电池模组处于放电过程中时，所述电路板50会检测电池的电压，当电池电量过低时，停止输出电量，对电池起到保护作用，当所述电池模组处于充电过程中时，在电池充满电时，电路板50可自动断开充电电路避免电池过充而损坏。所述电路板50设置于所述收容腔内，所述第一导电片70一端连接于所述电路板50，所述第一导电片70的另一端连接所述电芯21的第一电极端2121，所述第二导电片80一端连接于所述电路板50，所述第二导电片80的另一端连接所述电芯21的第二电极端2122，实现将电路板50和所述电芯21电连接。
可以理解的是：由14图可知所述电路板50位于电芯21的一侧且电路板50的两端分别垂直于第一壳体11和第二壳体12，利用第一导电片70和第二导电片80将电路板50和电芯21导通，此时，所使用的第一导电片70和第二导电片80的长度较短。但所述电路板50的位置不 限设于此处，只要满足使用的第一导电片70和第二导电片80长度较短即可，例如：所述电路板50设于电芯21一侧的垂直侧边，且同时满足垂直于第一壳体11和第二壳体12。
在一些实施例中，所述电路板50设置有插接口501，所述插接口501用于供所述插接头插接，实现采样导线61与电路板50的连接。
在一些实施例中，所述电路板50上设置有外接线502，所述外接线502从第一壳体11上的出线口117伸出外接其它部件。
在一些实施例中，所述电路板50的一端设置有第一卡块503，所述第一卡块503可卡接于所述第一卡槽1114，实现将电路板50的一端与所述第一壳体11固定。
在一些实施例中，所述电路板50的另一端设置有第二卡块504，所述第二卡块504可卡接于所述第二卡槽1213，实现将电路板50的另一端与所述第二壳体12固定。
对于上述第一挡板90，如图2和图3所示，所述第一挡板90盖设于所述第一壳体11背离所述电芯21的一表面，即第一挡板90盖设于第一壳体11的第一顶壁111，所述第一挡板90用于保护设于第一顶壁111的第一汇流排40，减少第一汇流排40与外界部件的接触，同时对电池模组的第一壳体11一侧起到密封作用。其中，第一挡板90远离电芯21的一表面低于第一顶壁111，优选的，第一挡板90远离电芯21的一表面低于第一顶壁1110.5mm，优选的，第一挡板90远离电芯21的一表面低于第一顶壁111至少0.3mm。所述第一壳体11优先与地面碰撞，对第一挡板90可起到保护作用，减少对第一汇流排40，减少对第一汇流排40的碰撞冲击造成第一汇流排40的损坏。
可以理解的是：为减少第一汇流排40与外界部件的接触以及对电池模组进行密封，不限于利用第一挡板90，也可以为其他方式，例如：往第一顶壁111增加树脂层，比如灌胶，利用凝固后的胶水对第一汇流排40进行保护，同时，电池模组跌落至地面时，凝固后的胶水可起到缓冲作用，更有效的对第一汇流排40起到保护作用。
对于上述树脂层，所述树脂层将所述多个电芯21粘结固定，和/或， 将所述多个电芯21与所述第一壳体11粘结固定，和/或，将所述多个电芯21与所述第二壳体12粘结固定。
在本申请的另一实施例中，如图20和图21所示，所述电池模组包括多个第二汇流排110，所述多个第二汇流排110设置于所述第二顶壁121，所述多个第二汇流排110用于将位于第二壳体12一侧的电芯21的电极之间连接起来。此时可利用圆柱状电芯21的电极设于相对的两端的特点，所述多个第一汇流排40通过第一通孔1111与所述圆柱状电芯21的第一电极端2121连接，所述多个第二汇流排110通过第二通孔1211与所述圆柱状电芯21的第二电极端2122连接，实现第一汇流排40、第二汇流排110和电芯21之间的导通，电池模组可正常工作。
可以理解的是：所述第一汇流排40和第二汇流排110连接电芯21的正负极不作限定，例如：当第一汇流排40连接电芯21的负极时，所述第二汇流排110连接电芯21的正极，所述电池模组可正常工作。当第一汇流排40连接电芯21的正极时，所述第二汇流排110连接电芯21的负极，所述电池模组可正常工作。当然，所述第二汇流排110也可类似于所述第一汇流排40一样，所述第二汇流排110连接电极处于同一端的长方体状电芯21的正极和负极，电池模组可正常工作。
在一些实施例中，所述第二壳体12的第二顶壁121设置有多个第二汇流槽1212，一所述第二汇流槽1212连通至少两个所述第二通孔1211，一所述第二汇流排110设置于一所述第二汇流槽1212。所述第二汇流槽1212用于放置所述第二汇流排110。
在一些实施例中，沿与所述第一方向相反方向观察，所述电芯21的至少一电极端212位于第二壳体12的一所述第二通孔1211，方便第二汇流排110通过第二通孔1211与电芯21的电极端212连接。其中，与第一方向相反方向即指的是沿垂直于第二壳体12的第二顶壁121的方向。
对于上述第二挡板100，如图1所示，所述第二挡板100盖设于所述第二壳体12背离所述电芯21的一表面，即第二挡板100盖设于第二壳体12的第二顶壁121。所述第二挡板100用于保护设于第二顶壁121 的第二汇流排110，减少第二汇流排110与外界部件的接触，同时对电池模组的第二壳体12一侧起到密封作用。
其中，第二挡板100远离电芯21的一表面低于第二顶壁121，优选的，第二挡板100远离电芯21的一表面低于第二顶壁121为0.5mm，优选的，第二挡板100远离电芯21的一表面低于第二顶壁121至少0.3mm。这样，在所述电池模组跌落至地面时，第二壳体12优先与地面碰撞，对第二挡板100可起到保护作用，减少对第二汇流排110的碰撞冲击造成第二汇流排110的损坏。
可以理解的是：为减少第二汇流排110与外界部件的接触以及对电池模组进行密封，不限于利用第二挡板100，也可以为其他方式，例如：往第二顶壁121灌胶，利用凝固后的胶水对第二汇流排110进行保护，同时，电池模组跌落至地面时，凝固后的胶水可起到缓冲作用，更有效的对第二汇流排110起到保护作用。
需要说明的是：如图22所示，本实施例电池模组的组装工序包括：
步骤S1：将第一汇流排40安装于第一壳体11上；
步骤S2：将所述电路板50和所述多个电芯21收容于第一壳体和第二壳体；
步骤S3：所述电路板50上的外接线502从所述第一壳体11伸出，且所述第一导电片70从第一壳体11伸出；
步骤S4：将所述第一汇流排40和所述电芯21的电极端焊接连接；
步骤S5：将所述第一挡板100设于所述第一壳体11，以覆盖所述电芯21的电极端和所述第一汇流排40。
在一些实施例中，所述电池模组组装工序还包括步骤S6：将所述采样组件60与第一汇流排40连接。
在一些实施例中，所述电池模组组装工序包括步骤S7：将所述第一挡板100设于所述第一壳体11，以覆盖所述电芯21的电极端、采样组件60和所述第一汇流排40。
在一些实施例中，所述电池模组组装工序还包括步骤S8：将流动树脂设于所述第一壳体10外后固定形成树脂层，所述树脂层用于将所述 第一汇流排40和所述第一壳体10固定。
在一些实施例中，步骤S3中，第一导电片70从第一壳体11垂直伸出，垂直伸出的第一导电片70方便后续工序中弯折处理，同时，可减少第一导电片70和第一壳体11的接触降低第一导电片70损坏。
在一些实施例中，所述步骤S1还包括将第二汇流排40安装在第二壳体12上。
在一些实施例中，所述步骤3中还包括将所述第二导电片80从第二壳体12伸出。
在一些实施例中，所述步骤3中还包括第二导电片80从第一壳体12垂直伸出，垂直伸出的第二导电片80方便后续工序中弯折处理，同时，可减少第二导电片80和第一壳体12的接触降低第二导电片80损坏。
在一些实施例中，所述步骤4还包括将所述第二汇流排40和所述电芯21的电极端焊接连接。
在一些实施例中，所述电池模组组装工序步骤S6中还包括将所述采样组件60与第二汇流排40连接。
在一些实施例中，所述步骤S7还包括将所述第二挡板40设于所述第二壳体11，以覆盖所述电芯21的电极端和所述第二汇流排40。
在一些实施例中，所述步骤S8还包括将流动树脂设于所述第二壳体10外后固定形成树脂层，所述树脂层用于将所述第二汇流排40和所述第二壳体12固定。
在本申请实施例中，通过设置有壳体10、电芯组件20和第一汇流排40。壳体10设有收容腔，所述壳体10包括第一壳体11和第二壳体12，所述第一壳体11和所述第二壳体12相固定，所述第一壳体11和所述第二壳体12围合形成所述收容腔。电芯组件20设于收容腔，电芯组件20包括多个电芯21，电芯21包括封装壳211和设于封装壳211外的电极端212，电极端212包括第一电极端2121和第二电极端2122。其中，第一壳体11包括第一顶壁111和连接于第一顶壁111的多个第一侧壁112，第一顶壁111设有第一通孔1111。此外，多个第一汇流排 40设置于第一顶壁111，多个第一汇流排40通过第一通孔1111与第一电极端2121连接，这样设置，由于第一汇流排40直接设置于第一壳体11的第一顶壁111上，在电池模组组装时，只需将第一壳体11和第二壳体12直接固定，即可实现第一汇流排40和电芯21的连接，提高了电池模组的组装效率，装配方便。
本申请还提供了一种用电设备的实施例，用电设备包括以上所述的电池模组，所述用电设备包括但不限于二轮电动车，储能设备，手持电动工具等，电池模组的功能和结构可参阅上述实施例，此处不再一一赘述。
以上所述仅为本申请的实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (20)

  1. 一种电池模组，其特征在于，包括：
    壳体，设有收容腔，所述壳体包括第一壳体和第二壳体，所述第一壳体和所述第二壳体固定，所述第一壳体和所述第二壳体围合形成所述收容腔；
    电芯组件，设于所述收容腔，所述电芯组件包括多个电芯，所述电芯包括封装壳和设于所述封装壳外的电极，所述电极包括第一电极端和第二电极端；
    第一壳体包括第一顶壁和连接于所述第一顶壁的多个第一侧壁，所述第一顶壁设有第一通孔；
    多个第一汇流排，设置于所述第一顶壁，所述多个第一汇流排通过所述第一通孔与所述第一电极端连接。
  2. 根据权利要求1所述的电池模组，其特征在于，
    所述第二壳体包括第二顶壁和连接于所述第二顶壁的多个第二侧壁，所述第二顶壁和所述第一顶壁相对设置，所述第二顶壁设有第二通孔；
    所述第一电极端和所述第二电极端设于所述封装壳相对的两端，所述电池模组包括多个设于第二顶壁的第二汇流排，所述多个第二汇流排通过所述第二通孔与所述第二电极端连接。
  3. 根据权利要求1所述的电池模组，其特征在于，
    所述第一电极端和所述第二电极端设于所述封装壳的同一端，所述多个第一汇流排连接于所述第二电极端。
  4. 根据权利要求1所述的电池模组，其特征在于，
    所述第一壳体的第一顶壁设置有多个第一汇流槽，一所述第一汇流槽连通至少两个所述第一通孔，一所述第一汇流排设置于一所述第一汇 流槽，沿第一方向观察，所述电芯的至少一电极位于一所述第一通孔。
  5. 根据权利要求2所述的电池模组，其特征在于，
    所述第二壳体的第二顶壁设置有多个第二汇流槽，一所述第二汇流槽连通至少两个所述第二通孔，一所述第二汇流排设置于一所述第二汇流槽，沿与所述第一方向相反方向观察，所述电芯的至少一电极位于一所述第二通孔。
  6. 根据权利要求1所述的电池模组，其特征在于，
    所述第一壳体设置有第一收容槽；
    所述第二壳体设置有第二收容槽，所述第一收容槽和所述第二收容槽共同形成所述收容腔。
  7. 根据权利要求6所述的电池模组，其特征在于，
    所述第一壳体设置有多个第一槽，所述多个第一槽连通于所述第一收容槽；
    所述第二壳体设置有多个第二槽，所述第二槽连通于所述第二收容槽，一所述电芯的第一端设置于一所述第一槽，一所述电芯的第二端设置于一所述第二槽，所述第一电极端设置于所述第一端，所述第二电极端设置于所述第二端。
  8. 根据权利要求1所述的电池模组，其特征在于，
    所述第一汇流排设置有第一定位孔；
    所述第一壳体的第一顶壁远离所述电芯方向延伸有第一定位柱，所述第一定位柱插接于所述第一定位孔内。
  9. 根据权利要求8所述的电池模组，其特征在于，
    所述第一汇流槽远离所述第一定位柱的侧壁设置有导向块，且所述导向块设置有倾斜面。
  10. 根据权利要求2所述的电池模组，其特征在于，
    包括电路板，所述电路板设置于所述收容腔内，所述电路板与所述多个电芯连接；
    所述电池模组包括采样组件，所述采样组件包括采样导线，所述采样导线一端连接于所述电路板，所述采样导线的另一端连接于所述多个电芯。
  11. 根据权利要求10所述的电池模组，其特征在于，
    所述采样导线包括第一采样导线，所述第一采样导线的一端与所述电路板连接，所述第一采样导线设置于所述第一壳体远离所述电芯的一表面，所述第一采样导线的另一端连接所述多个电芯。
  12. 根据权利要求11所述的电池模组，其特征在于，
    所述采样导线包括第二采样导线，所述第二采样导线设置于所述第二壳体远离所述电芯的一表面，所述第二采样导线的一端与所述电路板连接，所述第二采样导线的另一端连接所述多个电芯。
  13. 根据权利要求10所述的电池模组，其特征在于，
    包括第一导电片和第二导电片，所述第一导电片一端连接于所述电路板，所述第一导电片的另一端连接所述电芯的第一电极端，所述第二导电片一端连接于所述电路板，所述第二导电片的另一端连接所述电芯的第二电极端。
  14. 根据权利要求13所述的电池模组，其特征在于，
    所述第一壳体设置有第三通孔，所述第三通孔供所述第一导电片穿过；
    所述第二壳体设置有第四通孔，所述第四通孔供所述第二导电片穿过。
  15. 根据权利要求13所述的电池模组，其特征在于，
    所述第一壳体设置有第五通孔和第六通孔，所述第五通孔供所述第一导电片穿过，所述第六通孔供所述第二导电片穿过。
  16. 根据权利要求10所述的电池模组，其特征在于，
    所述采样导线设置有插接头；
    所述电路板设置有插接口，所述插接头插接于所述插接口内。
  17. 根据权利要求10所述的电池模组，其特征在于，
    所述第一壳体的一相对第一侧壁设置有第一固定槽及连通所述第一固定槽的第一开口；
    所述第二壳体的一相对第二侧壁内壁设置有第二固定槽及连通所述第二固定槽的第二开口，所述电路板的一端自所述第一开口卡入所述第一固定槽，所述电路板的另一端自所述第二开口卡入所述第二固定槽。
  18. 根据权利要求1所述的电池模组，其特征在于，
    包括树脂层，所述树脂层将所述多个电芯粘结固定，和/或，将所述多个电芯与所述第一壳体粘结固定，和/或，将所述多个电芯与所述第二壳体粘结固定。
  19. 根据权利要求1-18任一项所述的电池模组，其特征在于，
    包括第一挡板和第二挡板，所述第一挡板盖设于所述第一壳体背离所述电芯的一表面，所述第二挡板盖设于所述第二壳体背离所述电芯的一表面。
  20. 一种用电设备，其特征在于，包括如权利要求1-19任一项所述的电池模组。
PCT/CN2022/081237 2021-03-22 2022-03-16 一种电池模组和用电设备 WO2022199447A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22774108.9A EP4207419A1 (en) 2021-03-22 2022-03-16 Battery module and powered device
CN202280016153.8A CN116868405A (zh) 2021-03-22 2022-03-16 一种电池模组和用电设备
US18/193,969 US20230246305A1 (en) 2021-03-22 2023-03-31 Battery module and electrical device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202120583750.1 2021-03-22
CN202120583750 2021-03-22

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/193,969 Continuation US20230246305A1 (en) 2021-03-22 2023-03-31 Battery module and electrical device

Publications (1)

Publication Number Publication Date
WO2022199447A1 true WO2022199447A1 (zh) 2022-09-29

Family

ID=83396104

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/081237 WO2022199447A1 (zh) 2021-03-22 2022-03-16 一种电池模组和用电设备

Country Status (4)

Country Link
US (1) US20230246305A1 (zh)
EP (1) EP4207419A1 (zh)
CN (1) CN116868405A (zh)
WO (1) WO2022199447A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117374413B (zh) * 2023-12-08 2024-02-09 山西裕泰源新能源科技有限公司 一种锂电池组装封装装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104822557A (zh) * 2012-11-28 2015-08-05 罗伯特·博世有限公司 具有蓄电池模块保护罩的蓄电池模块以及用于制造蓄电池模块的蓄电池模块保护罩的方法
CN206820036U (zh) * 2017-05-19 2017-12-29 福州华鹰重工机械有限公司 一种电池组的外壳单元、模块单元及电池包
CN207233804U (zh) * 2017-07-27 2018-04-13 东莞市沃泰通新能源有限公司 一种电池结构
CN108666462A (zh) * 2017-03-30 2018-10-16 奥动新能源汽车科技有限公司 动力电池模组
CN110571377A (zh) * 2019-08-26 2019-12-13 江西优特汽车技术有限公司 电池模组组装结构及组装方法
CN211350778U (zh) * 2020-03-24 2020-08-25 蜂巢能源科技有限公司 电池模组外壳以及电池模组

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104822557A (zh) * 2012-11-28 2015-08-05 罗伯特·博世有限公司 具有蓄电池模块保护罩的蓄电池模块以及用于制造蓄电池模块的蓄电池模块保护罩的方法
CN108666462A (zh) * 2017-03-30 2018-10-16 奥动新能源汽车科技有限公司 动力电池模组
CN206820036U (zh) * 2017-05-19 2017-12-29 福州华鹰重工机械有限公司 一种电池组的外壳单元、模块单元及电池包
CN207233804U (zh) * 2017-07-27 2018-04-13 东莞市沃泰通新能源有限公司 一种电池结构
CN110571377A (zh) * 2019-08-26 2019-12-13 江西优特汽车技术有限公司 电池模组组装结构及组装方法
CN211350778U (zh) * 2020-03-24 2020-08-25 蜂巢能源科技有限公司 电池模组外壳以及电池模组

Also Published As

Publication number Publication date
US20230246305A1 (en) 2023-08-03
EP4207419A1 (en) 2023-07-05
CN116868405A (zh) 2023-10-10

Similar Documents

Publication Publication Date Title
CN102696131B (zh) 电池模组及电池包
KR20190071454A (ko) 버스바 어셈블리를 포함하는 배터리 모듈
CN110140233A (zh) 电池系统及包括其的车辆
CN214254576U (zh) 端盖组件、电池单体、电池及用电装置
CN201160085Y (zh) 大型锂离子动力电池组
JP4744096B2 (ja) パック電池
WO2022199447A1 (zh) 一种电池模组和用电设备
WO2023169406A1 (zh) 电池模组、电池包和车辆
CN113471589A (zh) 一种电池包及用电设备
US9929446B2 (en) Battery wiring module
CN107275555B (zh) 电芯连接单元以及包括该电芯连接单元的电池模块
CN206820036U (zh) 一种电池组的外壳单元、模块单元及电池包
CN215771377U (zh) 单体电池、电池模组及动力电池包
CN113964417A (zh) 电池组及用电设备
CN209822776U (zh) 单体电池、电池模组及电动汽车
CN104137298A (zh) 电化学元件组件
CN113113716B (zh) 一种电池包以及用电装置
CN109103368B (zh) 方形电池模组及其成组方法
CN114400359A (zh) 电芯堆
CN114899543A (zh) 一种电源装置
CN217740732U (zh) 一种电池组和用电设备
CN220544191U (zh) 背负式电池包
CN218070027U (zh) 一种电池包及用电设备
CN215815983U (zh) 一种超低温方形聚合物锂离子电池
CN220710569U (zh) 一种电池包封装结构

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: 22774108

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022774108

Country of ref document: EP

Effective date: 20230331

WWE Wipo information: entry into national phase

Ref document number: 202280016153.8

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE