WO2023151306A1 - 绝缘支架及电池模组 - Google Patents

绝缘支架及电池模组 Download PDF

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Publication number
WO2023151306A1
WO2023151306A1 PCT/CN2022/125953 CN2022125953W WO2023151306A1 WO 2023151306 A1 WO2023151306 A1 WO 2023151306A1 CN 2022125953 W CN2022125953 W CN 2022125953W WO 2023151306 A1 WO2023151306 A1 WO 2023151306A1
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WO
WIPO (PCT)
Prior art keywords
insulating
rib
insulating plate
groove
electrode
Prior art date
Application number
PCT/CN2022/125953
Other languages
English (en)
French (fr)
Inventor
任朝举
Original Assignee
湖北亿纬动力有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 湖北亿纬动力有限公司 filed Critical 湖北亿纬动力有限公司
Priority to EP22821845.9A priority Critical patent/EP4254646A1/en
Priority to US18/003,337 priority patent/US20240106096A1/en
Publication of WO2023151306A1 publication Critical patent/WO2023151306A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the technical field of power batteries, for example, to an insulating bracket and a battery module.
  • the battery module includes a plurality of battery cells, and the battery cells are connected in series and parallel through bus bars.
  • the battery module when the positive and negative electrodes of the cells are on the same side, when the cells are subjected to external forces such as vibrations on the box, short circuits between adjacent cells are likely to occur due to contact, and the safety is poor.
  • an insulating structure is usually used to insulate the battery cores. However, the insulating structure is difficult to manufacture, which increases the cost.
  • the present application provides an insulating bracket and a battery module, which can prevent contact between battery cells, further prevent short circuit between battery cells, improve safety, and have a simple structure.
  • the embodiment of the present application provides an insulating support, the insulating support is arranged on the cell group, and the cell group includes a plurality of cells, and the first electrode and the second electrode of each cell are located at On the same side of each electric core, the insulating support includes a plurality of connected insulating plates, each insulating plate is correspondingly arranged on one electric core, each insulating plate is provided with a limiting groove, and the limiting slot of each insulating plate The slot cover is arranged at the end of the electric core corresponding to each insulating plate, and the groove wall of the limiting groove of each insulating plate is set to limit the electric core corresponding to each insulating plate. Part of the first electrode and part of the second electrode of the core are exposed on the insulating plate corresponding to each cell.
  • the bottom of the limiting groove of each insulating plate covers the remaining part of the second electrode of the electric core corresponding to each insulating plate, and the bottom of the groove is provided with a first isolation part,
  • the first isolation part is provided with a through hole, and the first electrode of the cell corresponding to each insulating plate is exposed to each insulating plate through the through hole.
  • each insulating plate away from the corresponding electric core of each insulating plate is set as a bus bar, and each insulating plate can isolate the bus bar and each insulating plate Corresponding batteries.
  • a positioning structure is provided on a side of each insulating plate away from the notch of the limiting groove, and the positioning structure is configured to position the busbar.
  • the positioning structure includes an outwardly protruding positioning post, and the bus bar is provided with a mounting hole, and the mounting hole is sleeved on the positioning post;
  • the positioning structure includes a concave positioning hole, a mounting column is arranged on the bus bar, and the positioning hole is sleeved on the mounting column.
  • the plurality of cells are cylindrical cells.
  • the inner diameter of the limiting groove of each insulating plate is larger than the outer diameter of the electric core corresponding to each insulating plate.
  • the difference between the inner diameter of the limiting groove of each insulating plate and the outer diameter of the battery cell corresponding to each insulating plate ranges from 0.2mm to 2mm.
  • each insulating plate is provided with a second isolation part, and the second isolation part is configured to separate two adjacent electric cores.
  • the plurality of insulating plates are arranged along the first direction, and the second isolation part includes at least one of the following:
  • the first rib connects two adjacent insulating plates
  • the second rib is connected to the side surface of the outer peripheral wall of the limiting groove along the second direction;
  • a third rib is connected to the side surface of the outer peripheral wall of the limiting groove along the first direction.
  • the second isolation part when the second isolation part includes the second rib, the second rib is provided with a first positioning groove, and the first positioning groove is provided on the second rib.
  • the rib is away from the side of the limiting groove;
  • the third rib is provided with a second positioning groove, and the second positioning groove is arranged when the third rib is away from the limit sides of the groove;
  • the second isolation part includes the second rib and the third rib
  • the second rib is provided with a first positioning groove
  • the third rib is provided with a second positioning groove
  • the first positioning groove is arranged on the side of the second rib away from the limiting groove
  • the second positioning groove is arranged on the side of the third rib away from the limiting groove.
  • the first positioning groove and the second positioning groove adjacently arranged are set as Locate the same cell.
  • the groove bottom of the limiting groove of each insulating plate of each insulating plate is connected to the The second rib has a height difference.
  • the plurality of insulating plates are integrally formed.
  • the plurality of insulation boards are plastic boards.
  • an embodiment of the present application provides a battery module, including a battery pack, a bus bar, and the above-mentioned insulating support, the insulating support is set on the battery pack, and the bus bar is set on the insulating support superior.
  • each insulating support corresponds to the battery pack.
  • the limit groove is set to limit the position of the battery cells, which can maintain the relative position between the cells in the battery pack and prevent the battery pack from being shaken by an external force. Adjacent batteries are short-circuited due to touch, which improves safety; the battery module uses the above-mentioned insulating bracket, which improves safety and reliability; and does not require insulation design, which simplifies the structure and reduces production costs.
  • the exposed first electrode and the second electrode are conveniently arranged to be connected to the bus bar, so as to connect multiple electric cells in the electric core pack.
  • Fig. 1 is a schematic diagram of the assembly structure of the insulating support, the battery core and the bus bar provided by the specific embodiment of the present application;
  • Fig. 2 is a schematic diagram of an assembly structure of an insulating support and a bus bar under a perspective provided by a specific embodiment of the present application;
  • Fig. 3 is a schematic structural view of an insulating support provided in a specific embodiment of the present application.
  • FIG. 4 is a schematic diagram of an assembly structure of an insulating support and a bus bar from another perspective provided by a specific embodiment of the present application.
  • 100 battery core; 101, second electrode; 102, first electrode; 200, bus bar; 201, installation hole; 202, process hole; 203, first electrode connection part; 204, intermediate connection part; 205, second Electrode connection part; 300, insulating support; 301, insulating plate;
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components.
  • connection can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components.
  • a first feature being "on” or “under” a second feature may include direct contact between the first feature and the second feature, or include the first and second features.
  • the features are not in direct contact but through another feature between them.
  • “above”, “above” and “above” the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.
  • "Below”, “beneath” and “under” the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
  • This embodiment also provides a battery module, as shown in Figure 1, including a battery pack and an insulating support 300, the insulating support 300 is arranged on the battery pack, the battery pack includes a plurality of battery cells 100, each battery The first electrode 102 and the second electrode 101 of the core 100 are located on the same side of the cell 100 .
  • This embodiment also provides an insulating support 300.
  • the insulating plate 301 is provided with a limiting groove 1, and the limiting groove 1 is set on the end of the battery cell 100, and the groove wall 11 of the limiting groove 1 is set to limit the battery cell 100, and part of the first electrode 102 and part of the second electrode 101 are exposed on the insulating plate 301 .
  • the limit groove 1 is set to limit the position of the battery cell 100, which can maintain the relative position of the battery cells 100 in the battery pack, and prevent the adjacent battery cells 100 in the battery pack from being short-circuited due to contact when subjected to external vibrations. , improving the safety; the battery module adopts the insulating bracket 300, which improves the safety and reliability; and the insulation design is not required, which simplifies the structure and reduces the production cost.
  • the exposed first electrode 102 and the second electrode 101 are arranged to be connected to the bus bar 200 so as to connect the multiple battery cells 100 in the battery pack.
  • the bus bar 200 includes a plurality of connected connecting pieces, and the connecting pieces are arranged to connect two battery cells 100 adjacent along the second direction in series.
  • Each connector includes a first electrode connection part 203 connected to the first electrode 102 of one cell 100, a second electrode connection part 205 connected to the second electrode 101 of another cell 100, and a The intermediate connecting portion 204 between the electrode connecting portion 203 and the second electrode connecting portion 205 .
  • the first electrode connection portion 203 of the connector is connected to the first electrode 102 exposed on the insulating plate 301 of one of the two adjacent electric cores 100
  • the second The two-electrode connection portion 205 is connected to the second electrode 101 exposed on the insulating plate 301 of the other cell 100 among the two adjacent cells 100 .
  • the side of the insulating plate 301 away from the electric core 100 is set as a bus bar 200 , and two battery core groups are connected by a bus bar 200 , and the insulating plate 301 It can isolate the bus bar 200 and the battery cell 100 , prevent the bus bar 200 from contacting the first electrode 102 and the second electrode 101 of the same battery cell 100 at the same time and cause a short circuit, and realize the insulation isolation between the bus bar 200 and the battery cell 100 .
  • first electrode 102 and the second electrode 101 are positive electrode and the other is a negative electrode.
  • first electrode 102 is a positive electrode and the other is a negative electrode.
  • an example is described by taking the first electrode 102 as a positive electrode and the second electrode 101 as a negative electrode.
  • the multiple insulating brackets 300 correspond to the multiple cell groups one by one, and each insulating bracket 300 is arranged on the corresponding On the battery pack, the number of insulating supports 300 is set according to the number of the battery pack.
  • a plurality of insulating brackets 300 can be spliced to suit the number of battery packs in the battery module, which is more flexible in use and stronger in applicability.
  • all the battery cells 100 are divided into multiple battery cell groups to reduce the number of insulating plates 301 in the insulating bracket 300 and lower the machining accuracy.
  • the number of insulating plates 301 in the insulating support 300 can be 2-15; for a battery module with a certain number of battery cells 100, increasing the number of insulating plates 301 reduces the number of insulating supports 300, which is convenient for installation; The number of insulating plates 301 increases the number of insulating brackets 300, which has better applicability and lower processing precision requirements.
  • the number of insulating plates 301 on the insulating support 300 can be set according to the number of battery cells 100 in the battery pack.
  • the battery module is provided with two groups of cell groups and two insulating brackets 300, each group of cell groups is provided with four cells 100, and each insulating bracket 300 includes four connection Each insulating plate 301 is provided with a connector, and each battery core group is fixed with an insulating bracket 300 .
  • all the battery cells 100 in the battery module can also be formed into a battery pack for customized design, reducing the number of insulating brackets 300 and facilitating assembly.
  • the first direction is the X direction
  • the second direction is the Y direction
  • the first direction is perpendicular to the second direction.
  • the battery cell 100 is a cylindrical battery cell, and the groove wall 11 of the limiting groove 1 is cylindrical, or the battery cell 100 can also be a square battery cell, and the limiting groove 1 can be adaptively designed.
  • the cylindrical battery cell is a large cylindrical battery cell with a larger diameter, because when the volume of the battery box is constant, the larger the diameter of the cylindrical battery cell, the fewer the number of cylindrical battery cells, and it is set to limit the insulation of the cylindrical battery cell
  • the fewer the number of plates 301 the less the number of insulating plates 301 for positioning the cylindrical cells of each insulating support 300 , thereby reducing the processing accuracy of the insulating support 300 .
  • the first electrode 102 and the second electrode 101 are located on the top of the cell 100, and the limit groove 1 may have a gap in the bottom 12 of the groove, so that part of the first electrode 102 and part of the second electrode 101 are exposed, or
  • the limiting groove 1 only has a part of the groove bottom 12 and a part of the groove wall 11, and a part of the groove wall 11 is set around a part of the outer periphery of the battery cell 100, and a part of the groove bottom 12 is set on a part of the top of the battery cell 100, so that part of the first electrode 102 And part of the second electrode 101 is exposed.
  • the groove bottom 12 of the limiting groove 1 covers part of the second electrode 101, and the other part of the second electrode 101 is exposed; the groove bottom 12 is provided with a first isolation part 2, and the first isolation part 2.
  • a through hole 21 is opened, and the first electrode 102 is exposed to the insulating plate 301 through the through hole 21.
  • the first isolation part 2 is set to insulate and isolate the first electrode 102 and the second electrode 101, preventing the first electrode 102 from contacting the second electrode.
  • a contact short circuit occurs between 101.
  • the first electrode connecting portion 203 of a connector is connected to the first electrode 102 of the cell 100 passing through the through hole 21 (for the convenience of description, hereinafter referred to as the No.
  • connection The intermediate connection part 204 connected to the second electrode 101 of the battery cell 100 not adjacent to the No. 1 cell (for convenience of description, hereinafter referred to as the No. 2 cell) is located on the insulating plate 301 corresponding to the No. 1 cell , which means that the insulating plate 301 isolates the intermediate connection part 204 from the second electrode 101 of the No. 1 cell, so that the connector is isolated from the second electrode 101 of the No. 1 cell, and the second electrode of the connector
  • the connection part 205 is connected to the second electrode 101 of the No. 2 cell, because the side of the first electrode 102 of the No.
  • the first isolation part 2 is surrounded by the wall of the through hole 21 near the end of the second electrode 101, thereby avoiding The second electrode connection part 205 of the connector is connected to the first electrode 102 of the No. 2 cell, so as to achieve the effect that the connector will not be connected to the first electrode 102 and the second electrode 101 of the No. 2 cell 100 at the same time.
  • the first isolation part 2 may be ring-shaped and sleeved around the second electrode 101 .
  • the first isolation part 2 when a groove is provided between the first electrode 102 and the second electrode 101, the first isolation part 2 may also protrude from the groove bottom 12 of the limiting groove 1 to the direction of the groove in a ring shape, and sleeved around the first electrode 102 .
  • the specific structure of the first isolation part 2 can be set according to the structures of the first electrode 102 and the second electrode 101 .
  • a positioning structure is provided on the side of the insulating plate 301 away from the opening of the limiting groove 1, and the positioning structure is configured to position the bus bar 200, for example, by fixing each connector on the bus bar 200 to achieve the fixing of the bus bar 200,
  • the bus bar 200 can be accurately positioned on the insulating plate 301 to ensure that the relative position of the bus bar 200 and the battery cell 100 is accurate, and at the same time ensure the feasibility of assembly, which is conducive to improving the assembly efficiency of the bus bar 200 .
  • the positioning structure includes an outwardly protruding positioning column 3 , and a mounting hole 201 is opened on the busbar 200 , and the mounting hole 201 is sleeved on the positioning column 3 , which is convenient for installation.
  • the connectors are arranged on the insulating boards 301 , each insulating board 301 is provided with a positioning post 3 , each connecting member is provided with a mounting hole 201 , and each mounting hole 201 is mounted on a positioning post 3 .
  • the positioning column 3 is a cylinder with an outer diameter of not less than 3mm, which improves the structural strength of the positioning column 3 and improves the connection reliability.
  • the specific size of the positioning column 3 can be determined according to the bus bar 200 .
  • the positioning structure can be a positioning slot, and the bus bar 200 is clamped in the positioning slot, for example, the positioning slot is a blind hole; or the positioning structure is a square boss, and the bus bar 200 is provided with a square hole, and the square hole Sleeve on the square boss for positioning.
  • the positioning structure may also include a positioning hole recessed on the insulating plate 301, the busbar 200 (connector in this embodiment) is provided with a mounting column, and the positioning hole is sleeved on the mounting column.
  • the positioning column 3 is riveted with the mounting hole 201 to realize the fixed connection between the bus bar 200 and the insulating plate 301 , so as to prevent the bus bar 200 from contacting the adjacent bus bar 200 or the battery cell 100 due to unstable connection and short circuit.
  • the bus bar 200 is provided with a process hole 202.
  • the process hole 202 can be used as a positioning reference for positioning the bus bar 200 when the manipulator grabs it, and improving the distance between the bus bar 200 and the insulating support 300. assembly accuracy.
  • the limiting groove 1 is a circular groove or an arc-shaped groove, and the inner diameter of the limiting groove 1 is larger than the outer diameter of the electric core 100, which can absorb the dimensional tolerance of the electric core 100
  • the dimensional tolerances accumulated with multiple battery cells 100 maintain the relative positions of the battery cells 100, provide preliminary guarantees for the precise positioning of the bus bar 200, and ensure the feasibility of assembly.
  • the difference between the inner diameter of the limiting groove 1 and the outer diameter of the battery cell 100 is in the range of 0.2mm-2mm, for example, the difference is 1mm.
  • the insulating plate 301 is provided with a second isolation part 4 , and the second isolation part 4 is configured to separate two adjacent battery cells 100 to ensure a safe distance between the battery cells 100 .
  • the second isolation part 4 can isolate the battery cells 100 in the same group of battery cells, and can also isolate the battery cells 100 between adjacent battery cell groups, realizing insulation isolation, avoiding electrical safety problems, improving safety, and ensuring Safe clearances and creepage distances.
  • the second isolation portion 4 is a rib disposed between the outer peripheries of the groove walls 11 of adjacent limiting grooves 1 .
  • all the battery cells 100 in the battery pack are arranged along the first direction, and the multiple battery cells 100 are misaligned along the second direction, and all the insulating plates 301 on the insulating support 300 are arranged along the first direction , and the plurality of insulating plates 301 are connected to each other in dislocation along the second direction, and the plurality of insulating plates 301 are arranged according to the arrangement of the plurality of electric cores 100, so that the plurality of insulating plates 301 are respectively used to control the plurality of electric cores. 100 for limit.
  • four insulating plates 301 are arranged along the first direction and arranged on the cell row.
  • the four insulating plates 301 are arranged along the second Orientation misalignment settings.
  • the second isolation part 4 includes a first rib 42, the first rib 42 connects two adjacent insulating plates 301, and the first rib 42 is set to insulate and isolate the same cell group along the first direction. two adjacent batteries.
  • the second isolation part 4 includes a second rib 43, the second rib 43 is connected to the side surface of the outer peripheral wall of the limiting groove 1 along the second direction, and the second rib 43 is configured to insulate and isolate adjacent electric wires.
  • the core group includes two adjacent battery cores 100 along the second direction.
  • the second isolation part 4 includes a third rib 44, the third rib 44 is connected to the side surface of the outer peripheral wall of the limiting groove 1 along the first direction, and the third rib 44 is configured to insulate and isolate adjacent electric wires.
  • the core group includes two adjacent battery cores 100 along the first direction.
  • the second isolation part 4 includes a second rib 43
  • the second rib 43 is provided with a first positioning groove 41
  • the first positioning groove 41 is arranged on the side of the second rib 43 away from the limiting groove 1
  • the first positioning groove 41 is configured to position the battery cells 100 of the adjacent battery core group from the second direction.
  • the groove bottom 12 of the limiting groove 1 is covered with the second electrode 101 of the first electric core 100, and the first positioning groove 41 does not have the groove bottom 12, so that the second electrode 101 of the second electric core 100 is exposed, thereby
  • the groove bottom 12 of the limiting groove 1 isolates the second electrode 101 of the first battery cell 100 from the connector, and the second electrode 101 of the second battery cell 100 is connected to the connector.
  • the outer side of the bottom 12 of the limit groove 1 and the second rib 43 have a height difference. Only when the height difference can ensure that the limit groove 1 is set on the upper end surface of the first battery cell 100, the first rib 43 will Only the positioning groove 41 can limit the side of the second battery cell 100 to separate the two battery cells 100 in the second direction.
  • the second isolation part 4 includes a third rib 44
  • the third rib 44 is provided with a second positioning groove 45
  • the second positioning groove 45 is arranged on the side of the third rib 44 away from the limiting groove 1
  • the second positioning slot 45 is configured to position the battery cells 100 of the adjacent battery core group from the first direction.
  • the second isolation part 4 When the second isolation part 4 is provided with the first positioning groove 41 and the second positioning groove 45, due to the dislocation between the plurality of battery cells 100 in the battery pack, the first positioning groove 41 and the second positioning groove 45 that are adjacently arranged Set to locate the same cell.
  • the battery cell 100 is a cylindrical battery cell
  • the first positioning groove 41 is an arc-shaped groove.
  • a weight-reducing groove 46 is also provided on the second isolation portion 4 .
  • the plurality of insulating plates 301 may be integrated, and the plurality of insulating plates 301 are connected through the second isolation part 4 .
  • the plurality of insulating plates 301 may also be a split structure.
  • the insulation board 301 is a plastic board, for example, it can be made of polycarbonate (Polycarbonate, PC) plus acrylonitrile-butadiene-styrene copolymer (Acrylonitrile Butadiene Styrene, ABS) material, and can also be made of other insulating materials. Made of materials, not limited.
  • the limit groove is set to limit the position of the battery cells, which can maintain the relative position between the cells in the battery pack and prevent the battery pack from being shaken by an external force. Adjacent batteries are short-circuited due to touch, which improves safety; the battery module uses the above-mentioned insulating bracket, which improves safety and reliability; and does not require insulation design, which simplifies the structure and reduces production costs.
  • the exposed first electrode and the second electrode are arranged to be connected to the bus bar, so as to connect multiple electric cells in the electric core pack.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请公开了一种绝缘支架及电池模组。绝缘支架设置于电芯组上，电芯组包括多个电芯，每个电芯的第一电极和第二电极位于所述每个电芯的同侧，绝缘支架包括多个相连接的绝缘板，每个绝缘板对应设置于一个电芯上，每个绝缘板设置有限位槽，每个绝缘板的限位槽罩设于所述每个绝缘板对应的电芯的端部，每个绝缘板的限位槽的槽壁设置为对所述每个绝缘板对应的电芯进行限位，每个电芯的部分第一电极和部分第二电极外露于所述每个电芯对应的绝缘板。本申请的绝缘支架及电池模组，通过限位槽对电芯进行限位，能够保持电芯组内的电芯间的相对位置，防止电芯间发生触碰，进而防止电芯间发生短路，提高安全性，结构简单。

Description

绝缘支架及电池模组
本申请要求在2022年02月11日提交中国专利局、申请号为202220278057.8的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及动力电池技术领域，例如涉及一种绝缘支架及电池模组。
背景技术
电池模组包括多个电芯，电芯之间通过汇流排进行串、并联。电池模组中，当电芯的正极和负极处于同侧时，电芯在箱体上受到震动等外力时，相邻电芯之间容易由于触碰而发生短路，安全性差。相关技术中，通常采用绝缘结构对电芯之间进行绝缘设计，然而绝缘结构制作困难，提高了成本。
发明内容
本申请提供了一种绝缘支架及电池模组，防止电芯间发生触碰，进而防止电芯间发生短路，提高安全性，结构简单。
第一方面，本申请实施例提供了一种绝缘支架，所述绝缘支架设置于电芯组上，所述电芯组包括多个电芯，每个电芯的第一电极和第二电极位于所述每个电芯的同侧，所述绝缘支架包括多个相连接的绝缘板，每个绝缘板对应设置于一个电芯上，每个绝缘板设置有限位槽，每个绝缘板的限位槽罩设于所述每个绝缘板对应的电芯的端部，每个绝缘板的限位槽的槽壁设置为对所述每个绝缘板对应的电芯进行限位，每个电芯的部分第一电极和部分第二电极外露于所述每个电芯对应的绝缘板。
在一实施例中，所述每个绝缘板的限位槽的槽底覆盖所述每个绝缘板对应的电芯的第二电极的剩余部分，所述槽底上设置有第一隔离部，所述第一隔离部开设有通孔，所述每个绝缘板对应的电芯的第一电极通过所述通孔外露于所述每个绝缘板。
在一实施例中，每个绝缘板的背离所述每个绝缘板对应的电芯的一侧设置为设置汇流排，所述每个绝缘板能够隔离所述汇流排和所述每个绝缘板对应的电芯。
在一实施例中，每个绝缘板背离所述限位槽的槽口的一侧设置有定位结构，所述定位结构设置为对所述汇流排进行定位。
在一实施例中，所述定位结构包括外凸的定位柱，所述汇流排上开设有安装孔，所述安装孔套设于所述定位柱；或
所述定位结构包括内凹的所述定位孔，所述汇流排上设置有安装柱，所述定位孔套设于所述安装柱。
在一实施例中，所述多个电芯为圆柱电芯。
在一实施例中，每个绝缘板的限位槽的内径尺寸大于所述每个绝缘板对应的电芯的外径尺寸。
在一实施例中，每个绝缘板的限位槽的内径尺寸与所述每个绝缘板对应的电芯的外径尺寸之间的差值范围为0.2mm-2mm。
在一实施例中，每个绝缘板上设置有第二隔离部，所述第二隔离部设置为分隔相邻两个电芯。
在一实施例中，所述多个绝缘板沿第一方向排布，所述第二隔离部包括以下至少之一：
第一凸筋，所述第一凸筋连接相邻两个绝缘板；
第二凸筋，所述第二凸筋连接于所述限位槽的外周壁沿所述第二方向的侧面；
第三凸筋，所述第三凸筋连接于所述限位槽的外周壁沿所述第一方向的侧面。
在一实施例中，在所述第二隔离部包括所述第二凸筋的情况下，所述第二凸筋设置有第一定位槽，所述第一定位槽设置在所述第二凸筋背离所述限位槽的侧面；
在所述第二隔离部包括所述第三凸筋的情况下，所述第三凸筋设置有第二定位槽，所述第二定位槽设置在所述第三凸筋背离所述限位槽的侧面；
在所述第二隔离部包括所述第二凸筋和所述第三凸筋的情况下，所述第二凸筋设置有第一定位槽，所述第三凸筋设置有第二定位槽，所述第一定位槽设置在所述第二凸筋背离所述限位槽的侧面，所述第二定位槽设置在所述第三凸筋背离所述限位槽的侧面。
在一实施例中，在所述第二隔离部包括所述第二凸筋和所述第三凸筋的情况下，相邻设置的所述第一定位槽和所述第二定位槽设置为对同一个电芯进行定位。
在一实施例中，在所述第二隔离部包括所述第二凸筋的情况下，所述每个绝缘板的每个绝缘板的限位槽的槽底与所述每个绝缘板的第二凸筋具有高度差。
在一实施例中，所述多个绝缘板为一体成型结构。
在一实施例中，所述多个绝缘板为塑胶板。
第二方面，本申请实施例提供了一种电池模组，包括电芯组、汇流排和上述的绝缘支架，所述绝缘支架设置于电芯组上，所述汇流排设置于所述绝缘支架上。
在一实施例中，所述电芯组设有多个，所述绝缘支架设有多个，所述多个绝缘支架与所述多个电芯组一一对应，每个绝缘支架设置于与所述每个绝缘支架对应的电芯组上。
本申请的有益效果：
本申请提供的一种绝缘支架及电池模组，限位槽设置为对电芯进行限位，能够保持电芯组内的电芯间的相对位置，防止在受到外力震动时电芯组内的相邻电芯因触碰而发生短路，提高了安全性；电池模组通过采用上述绝缘支架，提高了安全性和可靠性；且无需进行绝缘设计，简化了结构，从而降低了生产成本。外露的第一电极和第二电极方便设置为与汇流排连接，以使电芯组内的多个电芯相连。
附图说明
图1是本申请的具体实施方式提供的绝缘支架、电芯及汇流排的组装结构示意图；
图2是本申请的具体实施方式提供的一个视角下的绝缘支架与汇流排的组装结构示意图；
图3是本申请的具体实施方式提供的绝缘支架的结构示意图；
图4是本申请的具体实施方式提供的另一个视角下的绝缘支架与汇流排的组装结构示意图。
图中：
100、电芯；101、第二电极；102、第一电极；200、汇流排；201、安装孔；202、工艺孔；203、第一电极连接部；204、中间连接部；205、第二电极连接部；300、绝缘支架；301、绝缘板；
1、限位槽；11、槽壁；12、槽底；2、第一隔离部；21、通孔；3、定位柱；4、第二隔离部；41、第一定位槽；42、第一凸筋；43、第二凸筋；44、第三凸筋；45、第二定位槽；46、减重槽。
具体实施方式
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以视具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一特征和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
本实施例还提供了一种电池模组，如图1所示，包括电芯组和绝缘支架300，绝缘支架300设置于电芯组上，电芯组包括多个电芯100，每个电芯100的第一电极102和第二电极101位于所述电芯100的同侧。本实施例还提供了一种绝缘支架300，如图1-图3所示，绝缘支架300包括多个相连接的绝缘板301，每个绝缘板301对应连接于设置于电芯组中的一个电芯100上，绝缘板301设置有限位槽1，限位槽1罩设于电芯100的端部，限位槽1的槽壁11设置为对电芯100进行限位，部分第一电极102和部分第二电极101外露于绝缘板301。
限位槽1设置为对电芯100限位，能够保持电芯组内的电芯100间的相对位置，防止在受到外力震动时电芯组内的相邻电芯100因触碰而发生短路，提高了安全性；电池模组通过采用上述绝缘支架300，提高了安全性和可靠性；且无需进行绝缘设计，简化了结构，从而降低了生产成本。外露的第一电极102和第二电极101设置为与汇流排200连接，以使电芯组内的多个电芯100相连。
如图4所示，汇流排200包括多个相连的连接件，连接件设置为串联沿第二方向相邻的两个电芯100。每个连接件包括与一个电芯100的第一电极102连接的第一电极连接部203、与另一个电芯100的第二电极101连接的第二电极连接部205，以及设置为连接第一电极连接部203和第二电极连接部205的中间连接部204。示例性的，如图1和图4所示，连接件的第一电极连接部203与相邻两个电芯100中的一个电芯100的露出于绝缘板301的第一电极102连接，第二电极连接部205与所述相邻两个电芯100中另一个电芯100的露出于绝缘板301的第二电极101连接。
可选地，如图1、图2和图4所示，绝缘板301的背离电芯100的一侧设置为设置汇流排200，两个电芯组用一个汇流排200进行连接，绝缘板301能够隔离汇流排200和电芯100，避免汇流排200与同一个电芯100的第一电极102和第二电极101同时接触而短路，实现了汇流排200与电芯100间的绝缘隔离。
第一电极102和第二电极101两者，一个是正极，另一个是负极。本实施例中，以第一电极102为正极，第二电极101为负极为例进行示例性说明。
电池模组内的电芯组设有多个，绝缘支架300设有多个，多个绝缘支架300与多个电芯组一一对应，每个绝缘支架300设置于所述绝缘支架300对应的电芯组上，绝缘支架300的数量根据电芯组的数量设置。多个绝缘支架300能够进行拼接以适用于电池模组中的电芯组数量，使用更灵活，适用性更强。当电池模组内的电芯100数量较多时，将所有电芯100划分为多个电芯组，减小绝缘支架300中绝缘板301的数量，降低加工精度。一般地，绝缘支架300中绝缘板301的数量可以是2-15个；对于电芯100数量一定的电池模组来说，增加绝缘板301数量，则减少绝缘支架300的数量，方便安装；减少绝缘板301数量，则增加了绝缘支架300的数量，适用性更好，加工精度要求更低。绝缘支架300上的绝缘板301的数量可根据电芯组内的电芯100数量进行设置。
本实施例中，如图1所示，电池模组设置有两组电芯组和两个绝缘支架300，每组电芯组设有四个电芯100，每个绝缘支架300包括四个连接的绝缘板301，每个绝缘板301上设置一个连接件，每组电芯组用一个绝缘支架300进行固定。其他实施例中，也可以将电池模组内的所有电芯100形成一个电芯组，进行定制化设计，减少绝缘支架300的数量，便于组装。
本实施例中，如图1所示，第一方向为X向，第二方向为Y向，第一方向垂直于第二方向。
本实施例中，电芯100为圆柱电芯，限位槽1的槽壁11呈圆筒状，或者电芯100也可以为方形电芯，限位槽1进行适应性设计即可。圆柱电芯为直径较大的大圆柱电芯，因为当电池箱体的体积一定时，圆柱电芯的直径越大，圆柱电芯的数量越少，设置为对圆柱电芯进行限位的绝缘板301数量越少，减少每个绝缘支架300的设置为定位圆柱电芯的绝缘板301的数量，从而能降低绝缘支架300的加工精度。
如图1所示，第一电极102和第二电极101位于电芯100的顶部，限位槽1可以是槽底12具有缺口，以使部分第一电极102和部分第二电极101外露，或者限位槽1只有部分槽底12和部分槽壁11，部分槽壁11围设在电芯100的部分外周，部分槽底12盖设在电芯100的部分顶部，以使部分第一电极102和部分第二电极101外露。
本实施例中，如图2所示，限位槽1的槽底12覆盖部分第二电极101，另一部分第二电极101裸露；槽底12上设置有第一隔离部2，第一隔离部2开设有通孔21，第一电极102通过通孔21外露于绝缘板301，第一隔离部2设置为绝缘和隔离第一电极102和第二电极101，防止第一电极102与第二电极101之间发生接触短路。本实施例中，一个连接件的第一电极连接部203与穿出所述通孔21的电芯100的(为描述方便，下称为1号电芯)第一电极102连接后，该连接件的未与1号电芯相邻的电芯100(为描述方便，下称为2号电芯)的第二电极101连接的中间连接部204位于所述1号电芯对应的绝缘板301上，相当于绝缘板301将中间连接部204与1号电芯的第二电极101隔绝，从而使得该连接件与1号电芯的第二电极101隔绝开，且该连接件的第二电极连接部205与2号电芯的第二电极101连接时，由于2号电芯的第一电极102的侧面靠近第二电极101的一端被所述通孔21的孔壁所围覆，从而避免了该连接件的第二电极连接部205与2号电芯的第一电极102连接，以达到实现连接件不会同时与2号电芯100的第一电极102及第二电极101连接的作用。根据第一电极102、第二电极101的结构设置第一隔离部2形状，例如，当第一电极102围设在所述第二电极101周边，且第二电极101凸出于第一电极102时，第一隔离部2可以呈环状并套设在第二电极101四周。
其他实施例中，当第一电极102和第二电极101之间设置有沟槽时，第一隔离部2也可以是呈环状从限位槽1的槽底12向槽口方向凸起，并套设在第一电极102的四周。第一隔离部2的具体结构可以根据第一电极102和第二电极101的结构进行设置。
绝缘板301背离限位槽1的开口的一侧设置有定位结构，定位结构设置为对汇流排200进行定位，例如通过固定汇流排200上的每个连接件来达到对汇流排200的固定，能够使汇流排200精准定位在绝缘板301上，保证汇流排200和电芯100的相对位置准确，同时保证了装配可行性，有利于提高汇流排200的装配效率。
本实施例中，如图1所示，定位结构包括外凸的定位柱3，汇流排200上开设有安装孔201，安装孔201套设于定位柱3，安装方便。连接件设置于绝缘板301上，每个绝缘板301上设置有定位柱3，每个连接件上开设有安装孔201，每个安装孔201安装于一个定位柱3上。定位柱3为圆柱，其外径不小于3mm，提高定位柱3的结构强度，提高连接可靠性，定位柱3的具体尺寸可根据汇流排200而定。其他实施例中，定位结构可以是定位槽，汇流排200卡接在定位槽内，例如，定位槽为盲孔；或者定位结构是一个方形凸台，汇流排200上开设有方孔，方孔套设在方形凸台上，进行定位。其他实施例中，定位结构也可以包括内凹在绝缘板301上的定位孔，汇流排200(本实施例中是连接件)上设 置有安装柱，定位孔套设于安装柱。
定位柱3与安装孔201铆接，实现汇流排200与绝缘板301的固定连接，避免汇流排200因连接不稳定而与相邻汇流排200或者电芯100发生接触而短路。
一般，电池模组通过自动化设备进行组装，以提高生产效率。汇流排200上开设有工艺孔202，机械手对汇流排200取料时，工艺孔202可以作为定位基准，用于机械手抓取时对汇流排200进行定位，提高汇流排200与绝缘支架300之间的装配精度。
可选地，电芯100为圆柱电芯时，限位槽1为圆形槽或弧形槽，限位槽1的内径尺寸大于电芯100的外径尺寸，能够吸收电芯100的尺寸公差和多个电芯100累积的尺寸公差，保持电芯100间的相对位置，为汇流排200精准定位提供前期保障，保证了装配的可行性。可选地，限位槽1的内径尺寸与电芯100的外径尺寸之间的差值范围为0.2mm-2mm，例如，差值为1mm。
可选地，绝缘板301上设置有第二隔离部4，第二隔离部4设置为分隔相邻两个电芯100，保证电芯100间的安全距离。第二隔离部4能够隔离同组电芯组中的电芯100，也能够隔离相邻电芯组间的电芯100，实现了绝缘隔离，避免出现电气安全问题，提高了安全性，同时保证安全的电气间隙和爬电距离。示例性的，第二隔离部4为设置于相邻限位槽1的槽壁11外周之间的凸筋。
如图1所示，电芯组内的所有电芯100沿第一方向排列，且多个电芯100之间沿第二方向相互错位，绝缘支架300上的所有绝缘板301沿第一方向排列，且多个绝缘板301之间沿第二方向相互错位连接，多个绝缘板301根据多个电芯100的排布进行排布，以使多个绝缘板301分别用于对多个电芯100进行限位。
可选地，如图2所示，四个绝缘板301沿第一方向排布，设置于电芯排上，为适应电芯排内多个电芯的位置，四个绝缘板301沿第二方向错位设置。
可选地，第二隔离部4包括第一凸筋42，第一凸筋42连接相邻两个绝缘板301，第一凸筋42设置为绝缘和隔离同电芯组内的沿第一方向相邻的两个电芯。
可选地，第二隔离部4包括第二凸筋43，第二凸筋43连接于限位槽1的外周壁沿第二方向的侧面，第二凸筋43设置为绝缘和隔离相邻电芯组沿第二方向相邻的两个电芯100。
可选地，第二隔离部4包括第三凸筋44，第三凸筋44连接于限位槽1的外周壁沿第一方向的侧面，第三凸筋44设置为绝缘和隔离相邻电芯组沿第一方向相邻的两个电芯100。
可选地，第二隔离部4包括第二凸筋43时，第二凸筋43设置有第一定位槽41，第一定位槽41设置在第二凸筋43背离限位槽1的侧面，第一定位槽41设置为从第二方向对相邻电芯组的电芯100进行定位。
限位槽1的槽底12盖设于第一个电芯100的第二电极101，第一定位槽41不具有槽底12，以使第二个电芯100的第二电极101裸露，从而实现限位槽1的槽底12隔离第一个电芯100的第二电极101和连接件，且第二个电芯100的第二电极101与连接件连接。限位槽1的槽底12外侧与第二凸筋43具有高度差，只有高度差时才能保证限位槽1罩设在第一个电芯100上端面时，第二凸筋43的第一定位槽41才能够对第二个电芯100的侧面进行限位，以隔开第二方向上的两个电芯100。
可选地，第二隔离部4包括第三凸筋44时，第三凸筋44设置有第二定位槽45，第二定位槽45设置在第三凸筋44背离限位槽1的侧面，第二定位槽45设置为从第一方向对相邻电芯组的电芯100进行定位。
第二隔离部4设置有第一定位槽41和第二定位槽45时，由于电芯组内的多个电芯100间错位设置，相邻设置的第一定位槽41和第二定位槽45设置为对同一个电芯进行定位。
本实施例中，电芯100为圆柱电芯，第一定位槽41为弧形槽。
第二隔离部4设置有第一凸筋42、第二凸筋43和第三凸筋44时，三者为一体结构。第二隔离部4上还设置有减重槽46。
可选地，多个绝缘板301可以为一体结构，多个绝缘板301通过第二隔离部4连接。可选地，多个绝缘板301也可以是分体结构。
可选地，绝缘板301为塑胶板，例如可以由聚碳酸酯(Polycarbonate，PC)加丙烯腈-丁二烯-苯乙烯共聚物(Acrylonitrile Butadiene Styrene，ABS)材质制成，也可以由其他绝缘材质制成，不进行限定。
本申请提供的一种绝缘支架及电池模组，限位槽设置为对电芯进行限位，能够保持电芯组内的电芯间的相对位置，防止在受到外力震动时电芯组内的相邻电芯因触碰而发生短路，提高了安全性；电池模组通过采用上述绝缘支架，提高了安全性和可靠性；且无需进行绝缘设计，简化了结构，从而降低了生产成本。外露的第一电极和第二电极设置为与汇流排连接，以使电芯组内的多个电芯相连。

Claims (17)

  1. 一种绝缘支架，所述绝缘支架(300)设置于电芯组上，所述电芯组包括多个电芯(100)，每个电芯(100)的第一电极(102)和第二电极(101)位于所述每个电芯(100)的同侧，所述绝缘支架(300)包括多个相连接的绝缘板(301)，每个绝缘板(301)对应设置于一个电芯(100)上，每个绝缘板(301)设置有限位槽(1)，每个绝缘板(301)的限位槽(1)罩设于所述每个绝缘板(301)对应的电芯(100)的端部，每个绝缘板(301)的限位槽(1)的槽壁(11)设置为对所述每个绝缘板(301)对应的电芯(100)进行限位，每个电芯(100)的部分第一电极(102)和部分第二电极(101)外露于所述每个电芯(100)对应的绝缘板(301)。
  2. 根据权利要求1所述的绝缘支架，其中，每个绝缘板(301)的限位槽(1)的槽底(12)覆盖所述每个绝缘板(301)对应的电芯(100)的第二电极(101)的剩余部分，所述槽底(12)上设置有第一隔离部(2)，所述第一隔离部(2)开设有通孔(21)，所述每个绝缘板(301)对应的电芯(100)的第一电极(102)通过所述通孔(21)外露于所述每个绝缘板(301)。
  3. 根据权利要求2所述的绝缘支架，其中，每个绝缘板(301)的背离所述每个绝缘板(301)对应的电芯(100)的一侧设置为设置汇流排(200)，所述每个绝缘板(301)能够隔离所述汇流排(200)和所述每个绝缘板(301)对应的电芯(100)。
  4. 根据权利要求3所述的绝缘支架，其中，每个绝缘板(301)背离所述限位槽(1)的槽口的一侧设置有定位结构，所述定位结构设置为对所述汇流排(200)进行定位。
  5. 根据权利要求4所述的绝缘支架，其中，所述定位结构包括外凸的定位柱(3)，所述汇流排(200)上开设有安装孔(201)，所述安装孔(201)套设于所述定位柱(3)；或
    所述定位结构包括内凹的定位孔，所述汇流排(200)上设置有安装柱，所述定位孔套设于所述安装柱。
  6. 根据权利要求1所述的绝缘支架，其中，所述多个电芯(100)为圆柱电芯。
  7. 根据权利要求6所述的绝缘支架，其中，每个绝缘板(301)的限位槽(1)的内径尺寸大于所述每个绝缘板(301)对应的电芯(100)的外径尺寸。
  8. 根据权利要求7所述的绝缘支架，其中，每个绝缘板(301)的限位槽(1)的内径尺寸与所述每个绝缘板(301)对应的电芯(100)的外径尺寸之间的差值范围为0.2mm-2mm。
  9. 根据权利要求2-8任一项所述的绝缘支架，其中，每个绝缘板(301)上设置有第二隔离部(4)，所述第二隔离部(4)设置为分隔相邻两个电芯(100)。
  10. 根据权利要求9所述的绝缘支架，其中，所述多个绝缘板(301)沿第一方向排布，所述第二隔离部(4)包括以下至少之一：
    第一凸筋(42)，所述第一凸筋(42)连接相邻两个绝缘板(301)；
    第二凸筋(43)，所述第二凸筋(43)连接于所述限位槽(1)的外周壁沿第二方向的侧面；
    第三凸筋(44)，所述第三凸筋(44)连接于所述限位槽(1)的外周壁沿所述第一方向的侧面。
  11. 根据权利要求10所述的绝缘支架，其中，在所述第二隔离部(4)包括所述第二凸筋(43)的情况下，所述第二凸筋(43)设置有第一定位槽(41)，所述第一定位槽(41)设置在所述第二凸筋(43)背离所述限位槽(1)的侧面；
    在所述第二隔离部(4)包括所述第三凸筋(44)的情况下，所述第三凸筋(44)设置有第二定位槽(45)，所述第二定位槽(45)设置在所述第三凸筋(44)背离所述限位槽(1)的侧面；
    在所述第二隔离部(4)包括所述第二凸筋(43)和所述第三凸筋(44)的情况下，所述第二凸筋(43)设置有第一定位槽(41)，所述第三凸筋(44)设置有第二定位槽(45)，所述第一定位槽(41)设置在所述第二凸筋(43)背离所述限位槽(1)的侧面，所述第二定位槽(45)设置在所述第三凸筋(44)背离所述限位槽(1)的侧面。
  12. 根据权利要求11所述的绝缘支架，其中，在所述第二隔离部(4)包括所述第二凸筋(43)和所述第三凸筋(44)的情况下，相邻设置的所述第一定位槽(41)和所述第二定位槽(45)设置为对同一个电芯(100)进行定位。
  13. 根据权利要求11所述的绝缘支架，其中，在所述第二隔离部(4)包括所述第二凸筋(43)的情况下，每个绝缘板(301)的每个绝缘板(301)的限位槽(1)的槽底(12)与所述每个绝缘板(301)的第二凸筋(43)具有高度差。
  14. 根据权利要求1-8任一项所述的绝缘支架，其中，所述多个绝缘板(301)为一体成型结构。
  15. 根据权利要求1-8任一项所述的绝缘支架，其中，所述多个绝缘板(301)为塑胶板。
  16. 一种电池模组，包括电芯组、汇流排(200)和权利要求1-15任一项所 述的绝缘支架(300)，所述绝缘支架(300)设置于所述电芯组上，所述汇流排(200)设置于所述绝缘支架(300)上。
  17. 根据权利要求16所述的电池模组，其中，所述电芯组设有多个，所述绝缘支架(300)设有多个，所述多个绝缘支架(300)与所述多个电芯组一一对应，每个绝缘支架(300)设置于与所述每个绝缘支架(300)对应的电芯组上。
PCT/CN2022/125953 2022-02-11 2022-10-18 绝缘支架及电池模组 WO2023151306A1 (zh)

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