WO2024029304A1 - 電池配線モジュール - Google Patents

電池配線モジュール Download PDF

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Publication number
WO2024029304A1
WO2024029304A1 PCT/JP2023/025871 JP2023025871W WO2024029304A1 WO 2024029304 A1 WO2024029304 A1 WO 2024029304A1 JP 2023025871 W JP2023025871 W JP 2023025871W WO 2024029304 A1 WO2024029304 A1 WO 2024029304A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
case
connecting portion
divided
wiring module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/025871
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
洋 佐藤
政巳 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
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 Sumitomo Wiring Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to CN202380054077.4A priority Critical patent/CN119585931A/zh
Priority to US18/995,838 priority patent/US20260045662A1/en
Publication of WO2024029304A1 publication Critical patent/WO2024029304A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • 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
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • 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
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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 disclosure relates to a battery wiring module.
  • a battery wiring module is attached to a high voltage battery mounted as a power source for driving the vehicle.
  • the battery wiring module includes electric wires that are electrically connected to the battery and a case that accommodates the electric wires.
  • the case of the battery wiring module has a plurality of divided cases arranged in a direction in which a plurality of battery cells constituting the battery are arranged in parallel. According to such a configuration, by making each divided case movable in the juxtaposition direction, it becomes possible to absorb deformation due to thermal expansion of the battery and manufacturing tolerance of parts. Therefore, the connection reliability between the battery and the battery wiring module is improved.
  • each divided case has a connecting portion for connecting adjacent divided cases.
  • the direction in which the connecting portions are connected to each other is along the direction in which the divided cases are arranged side by side. That is, the divided cases are connected to each other by fitting one connecting portion to the other connecting portion along the direction in which the divided cases are arranged side by side.
  • An object of the present disclosure is to provide a battery wiring module that can improve the ease of assembling a case.
  • a battery wiring module of the present disclosure is a battery wiring module that can be attached to a battery, and includes an electric wire that is electrically connected to the battery, and a case that accommodates the electric wire, and the case is arranged in parallel.
  • one of the pair of adjacent divided cases has a first connecting part
  • the other of the pair of divided cases has a second connecting part connected to the first connecting part.
  • the connecting direction of the first connecting part and the second connecting part is a direction along a direction in which the divided case is assembled to the battery.
  • the battery wiring module of the present disclosure exhibits the effect of improving case assemblability.
  • FIG. 1 is a schematic plan view of a battery wiring module according to an embodiment.
  • FIG. 2 is a schematic side view of a battery wiring module of the same type.
  • FIG. 3 is a perspective view showing a part of the case in the battery wiring module of the same type.
  • FIG. 4 is an exploded perspective view showing a part of the case in the battery wiring module of the same type.
  • the battery wiring module of the present disclosure includes: [1] A battery wiring module attachable to a battery, comprising an electric wire electrically connected to the battery and a case accommodating the electric wire, the case comprising a plurality of divided cases arranged in parallel. Among the plurality of divided cases, one of the pair of adjacent divided cases has a first connecting portion, and the other of the pair of divided cases has a second connecting portion connected to the first connecting portion. The connecting direction of the first connecting part and the second connecting part is along the direction in which the case is assembled to the battery.
  • connection direction may be a direction intersecting a direction in which the plurality of divided cases are arranged side by side.
  • the battery may include a plurality of battery cells arranged in parallel along the direction in which the plurality of divided cases are arranged in parallel. According to this configuration, it is possible to make the battery longer in the direction in which the battery cells are arranged side by side. Dimensional changes due to thermal expansion of the battery tend to increase in the direction in which longer battery cells are arranged side by side. Therefore, according to a configuration in which a plurality of divided cases are arranged side by side along the direction in which the battery cells are arranged side by side, each divided case is positively displaced along the side-by-side direction so as to fill the gaps between each other. . This makes it possible to more effectively absorb deformation due to thermal expansion of the battery.
  • the first connecting portion has a hole shape, and the second connecting portion is inserted into the first connecting portion along the connecting direction. It may be an extension part.
  • the displacement allowing portion allows relative displacement of the second connecting portion with respect to the first connecting portion in the direction in which the divided cases are arranged side by side. Therefore, it becomes possible to actively displace each divided case along the juxtaposition direction.
  • each of the plurality of divided cases has a busbar holding portion that holds a busbar that forms a conductive path together with the electric wire, and each of the plurality of divided cases has a In the juxtaposed direction, one of the first connecting portion and the second connecting portion and the bus bar holding portion may be provided at the same position.
  • the first connecting portion or the second connecting portion and the bus bar holding portion are not located at different positions in the direction in which the divided cases are arranged side by side. Therefore, it is possible to contribute to downsizing of the case in the direction in which the divided cases are arranged side by side.
  • the battery wiring module 10 of this embodiment is attached to a battery 11 mounted in, for example, an electric vehicle, a hybrid vehicle, or the like.
  • the battery 11 is, for example, a secondary battery.
  • the battery 11 supplies power to a driving motor of a vehicle (not shown). Further, the battery 11 receives power from a travel motor or a power generation motor depending on the state of charge and the driving state of the vehicle.
  • the battery 11 includes a plurality of battery cells 12.
  • the battery 11 has a substantially rectangular parallelepiped shape, for example, by having a plurality of battery cells 12 arranged side by side in one direction.
  • the direction in which the battery cells 12 are lined up will be referred to as the X direction
  • the direction orthogonal to the X direction will be referred to as the Y direction.
  • the Z direction perpendicular to the X direction and the Y direction is defined as an up-down direction
  • the side on which the battery wiring module 10 is attached to the battery 11 is defined as an upward direction. That is, the battery 11 has a module mounting surface 13 on the upper side surface, on which the battery wiring module 10 is mounted.
  • Each battery cell 12 has two battery terminals 14. One of the two battery terminals 14 is a positive terminal and the other is a negative terminal. When each battery cell 12 is arranged in the X direction, the two battery terminals 14 are arranged on the upper surface of the battery cell 12 along the Y direction.
  • the battery wiring module 10 includes a plurality of electric wires 21 electrically connected to the battery 11 and a case 22 that accommodates each electric wire 21. Further, the battery wiring module 10 includes, for example, a plurality of bus bars 23 supported by a case 22. For example, a plurality of bus bars 23 are arranged in line along the X direction on both sides of the case 22 in the Y direction. Each bus bar 23 connects adjacent battery terminals 14 in the X direction. The bus bar 23 is connected to the battery terminal 14 by, for example, welding. Each bus bar 23 is electrically connected to a corresponding electric wire 21. The bus bar 23 forms a conductive path together with the electric wire 21.
  • the electric wire 21 is a pressure-testing electric wire for detecting the voltage of the bus bar 23, for example. Each electric wire 21 is connected to a connector 24 for connecting to a pressure testing device (not shown).
  • the case 22 includes a first divided case 31, a second divided case 32, a third divided case 33, and a cover 34.
  • the first divided case 31, the second divided case 32, the third divided case 33, and the cover 34 are made of an insulator such as synthetic resin.
  • the first divided case 31, the second divided case 32, and the third divided case 33 are arranged in parallel in the X direction.
  • the second divided case 32 is arranged between the first divided case 31 and the third divided case 33 in the X direction.
  • the cover 34 is divided corresponding to each of the first divided case 31 , the second divided case 32 , and the third divided case 33 .
  • each of the first divided case 31, the second divided case 32, and the third divided case 33 is attached to the module mounting surface 13 of the battery 11 in an assembly direction D along the Z direction from above. Can be assembled.
  • the case 22 has a first bus bar holding section 35 and a second bus bar holding section 36.
  • the first bus bar holding section 35 and the second bus bar holding section 36 have different shapes from each other.
  • a plurality of first bus bar holding parts 35 and second bus bar holding parts 36 are arranged alternately in the X direction.
  • Two rows of first bus bar holding parts 35 and second bus bar holding parts 36 are provided, each corresponding to two rows of bus bars 23 arranged in the X direction.
  • a pair of first bus bar holding parts 35 and second bus bar holding parts 36 adjacent to each other in the X direction hold one bus bar 23.
  • Each bus bar 23 is provided so as to straddle a first bus bar holding section 35 and a second bus bar holding section 36 that are adjacent to each other in the X direction.
  • the first divided case 31 has a pair of first wire accommodating portions 41 extending in the X direction.
  • the pair of first wire accommodating portions 41 are arranged at intervals in the Y direction.
  • the first divided case 31 has a first bridge portion 42 that connects a pair of first wire accommodating portions 41 arranged in the Y direction.
  • Each first wire accommodating portion 41 has a bottom wall 43 and a pair of side walls 44 facing each other in the Y direction.
  • the lower surface of the bottom wall 43 faces the module mounting surface 13 in the Z direction.
  • Each side wall 44 extends upward from the bottom wall 43.
  • the electric wire 21 is housed between the pair of side walls 44 in the Y direction.
  • the second divided case 32 has a pair of second wire accommodating portions 51 extending in the X direction.
  • the pair of second wire accommodating portions 51 are arranged at intervals in the Y direction.
  • the first electric wire accommodating part 41 and the second electric wire accommodating part 51 are lined up in a straight line along the X direction.
  • the second divided case 32 has a second bridge portion 52 that connects a pair of second wire accommodating portions 51 aligned in the Y direction.
  • Each second wire accommodating portion 51 has a bottom wall 53 and a pair of side walls 54 facing each other in the Y direction.
  • the lower surface of the bottom wall 53 faces the module mounting surface 13 in the Z direction.
  • Each side wall 54 extends upward from the bottom wall 53.
  • the electric wire 21 is housed between a pair of side walls 54 in the Y direction.
  • the first bus bar holding part 35 and the second bus bar holding part 36 extend outward in the Y direction from each of the first electric wire accommodating part 41 and the second electric wire accommodating part 51.
  • An opening 45 is provided in the side wall 44 of the first wire accommodating portion 41 at a position corresponding to the second bus bar holding portion 36 .
  • the electric wire 21 is drawn out from the inside of the first electric wire accommodating portion 41 through the opening 45 to the outside in the Y direction.
  • an opening 55 is provided in the side wall 54 of the second wire accommodating portion 51 at a position corresponding to the second bus bar holding portion 36.
  • the electric wire 21 is drawn out from the inside of the second electric wire accommodating portion 51 through the opening 55 to the outside in the Y direction.
  • the first electric wire accommodating part 41 and the second electric wire accommodating part 51 are covered with the cover 34 at their open upper sides.
  • the pair of first wire accommodating portions 41 and the pair of second wire accommodating portions 51 are provided spaced apart in the Y direction, for example, by providing a separate member in the center of the battery 11 in the Y direction, or by providing a separate member. This is to provide a space for creating a clearance between the two.
  • An example of the separate member is an explosion-proof valve.
  • the first divided case 31 has a first connecting portion 60 .
  • the second divided case 32 has a second connecting part 70 connected to the first connecting part 60.
  • the first connecting part 60 has a hole shape
  • the second connecting part 70 is an extension part inserted into the first connecting part 60.
  • the first connecting portion 60 is provided, for example, at the end portion 41a of the first wire accommodating portion 41 in the X direction.
  • the first wire accommodating portion 41 does not have side walls 44 at the end portion 41a.
  • the first connecting portion 60 is connected to the bottom wall 43 at the end portion 41a. Further, the first connecting portion 60 is provided between the bottom wall 43 and the first bus bar holding portion 35 at the end portion 41a.
  • the first connecting portion 60 has a pair of first wall portions 61 that face each other in the Y direction, and a pair of second wall portions 62 that connect the pair of first wall portions 61.
  • the pair of second wall portions 62 face each other in the X direction.
  • the second connecting portion 70 is inserted into a portion surrounded by each first wall portion 61 and each second wall portion 62.
  • the first bus bar holding portion 35 extends from the first wall portion 61 on the outside in the Y direction of the pair of first wall portions 61 . That is, the first connecting portion 60 and the first bus bar holding portion 35 are provided at the same position in the X direction.
  • the second connecting portion 70 is provided at one end of the second wire accommodating portion 51 in the X direction.
  • the second connecting portion 70 extends downward in the Z direction from the outer side wall 54 in the Y direction of the second wire accommodating portion 51, for example.
  • a locking portion 71 is provided at the lower end of the second connecting portion 70 .
  • the second connecting portion 70 is inserted into the first connecting portion 60 along the Z direction.
  • the locking portion 71 is hooked on one first wall portion 61 of the first connecting portion 60 in the Z direction. That is, the connection direction of the first connection part 60 and the second connection part 70 is the Z direction along the assembly direction D of the second divided case 32 with respect to the battery 11.
  • the second divided case 32 is assembled to the first divided case 31 by locking the locking portion 71 of the second connecting portion 70 with the first wall portion 61 of the first connecting portion 60 .
  • the bottom wall 43 at the end 41a of the first electric wire accommodating part 41 and the bottom wall 53 of the second electric wire accommodating part 51 are overlap in the direction.
  • the dimension of the second connecting portion 70 in the X direction is set smaller than the hole size of the first connecting portion 60 in the X direction.
  • a displacement allowing portion S is provided between the first connecting portion 60 and the second connecting portion 70 to allow relative displacement of the second connecting portion 70 with respect to the first connecting portion 60 in the X direction.
  • the third divided case 33 has substantially the same configuration as the first divided case 31 and the second divided case 32. Specifically, the third divided case 33 has a pair of wire accommodating portions (not shown) similar to the first wire accommodating portion 41 and the second wire accommodating portion 51. The electric wire accommodating portion is linearly aligned with the first electric wire accommodating portion 41 and the second electric wire accommodating portion 51 along the X direction.
  • connection structure between the second divided case 32 and the third divided case 33 is similar to the connection structure between the first divided case 31 and the second divided case 32 described above. That is, as shown in FIG. 2, in the second divided case 32, the first connecting portion 60 is provided at the end opposite to the end where the second connecting portion 70 is provided. A second connecting portion 70 provided at the end of the third divided case 33 in the X direction is connected to the first connecting portion 60 of the second divided case 32 in the Z direction.
  • the operation of this embodiment will be explained.
  • the first divided case 31, the second divided case 32, and the third divided case 33 are configured to be movable in the direction in which they are arranged side by side, that is, in the X direction. This makes it possible to absorb deformation due to thermal expansion of the battery 11 and manufacturing tolerances of parts by displacing each of the divided cases 31, 32, and 33 in the X direction. As a result, for example, connection reliability between the electric wire 21 and the bus bar 23 can be improved.
  • the first divided case 31 is first assembled to the module mounting surface 13.
  • the second divided case 32 is assembled to the module mounting surface 13 from above in the assembly direction D along the Z direction.
  • the connection direction between the first connecting portion 60 of the first divided case 31 and the second connecting portion 70 of the second divided case 32 is along the Z direction. Therefore, in addition to the work of assembling the second divided case 32 to the module mounting surface 13, the second connecting portion 70 of the second divided case 32 must be inserted into the first connecting portion 60 of the first divided case 31 and connected. is possible.
  • the third divided case 33 is assembled to the module mounting surface 13 from above in the assembly direction D along the Z direction.
  • the connection direction between the first connecting portion 60 of the second divided case 32 and the second connecting portion 70 of the third divided case 33 is along the Z direction. Therefore, in addition to the work of assembling the third divided case 33 to the module mounting surface 13, it is necessary to insert and connect the second connecting portion 70 of the third divided case 33 to the first connecting portion 60 of the second divided case 32. is possible.
  • the connecting direction of the first connecting part 60 and the second connecting part 70 is a direction along the assembly direction D of each divided case 31 , 32 , 33 with respect to the battery 11 . According to this configuration, it is possible to complete the work of assembling the second divided case 32 and the third divided case 33 to the battery 11 at the same time as the work of connecting the first connecting part 60 and the second connecting part 70. . Therefore, it is possible to improve the ease of assembling the case 22 to the battery 11.
  • the connecting direction of the first connecting part 60 and the second connecting part 70 is along the Z direction that intersects with the direction in which the plurality of divided cases 31, 32, and 33 are arranged side by side. According to this configuration, at the same time as the work of connecting the first connecting part 60 and the second connecting part 70 in the Z direction intersecting with the direction in which the divided cases 31, 32, and 33 are arranged side by side, the second divided case 32 And it becomes possible to complete the work of assembling the third divided case 33 to the battery 11.
  • the battery 11 includes a plurality of battery cells 12 arranged in parallel along the direction in which the plurality of divided cases 31, 32, and 33 are arranged in parallel. According to this configuration, it is possible to make the battery 11 longer in the direction in which the battery cells 12 are arranged side by side. The dimensional change due to thermal expansion of the battery 11 tends to increase in the direction in which the elongated battery cells 12 are arranged side by side. Therefore, according to the configuration in which a plurality of divided cases 31, 32, 33 are arranged side by side along the direction in which the battery cells 12 are arranged, the displacement of each divided case 31, 32, 33 in the direction in which the battery cells 12 are arranged side by side causes the battery 11 to It becomes possible to more effectively absorb deformation due to thermal expansion.
  • the first connecting portion 60 has a hole shape
  • the second connecting portion 70 is an extending portion that is inserted into the first connecting portion 60 along the Z direction, which is the connecting direction.
  • a space between the first connecting portion 60 and the second connecting portion 70 allows relative displacement of the second connecting portion 70 with respect to the first connecting portion 60 in the direction in which the divided cases 31, 32, and 33 are arranged side by side.
  • a displacement allowing portion S is provided. According to this configuration, the displacement allowing portion S allows relative displacement of the second connecting portion 70 with respect to the first connecting portion 60 in the direction in which the divided cases 31, 32, and 33 are arranged side by side. Therefore, the displacement allowing portion S allows displacement of each divided case 31, 32, 33 in the direction in which they are arranged side by side.
  • Each of the divided cases 31, 32, and 33 has a first busbar holding section 35 and a second busbar holding section 36 that hold the busbar 23 that forms a conductive path together with the electric wire 21.
  • the first connecting portion 60 and the first bus bar holding portion 35 are provided at the same position in the direction in which the divided cases 31, 32, and 33 are arranged side by side. According to this configuration, the first connecting portion 60 and the first bus bar holding portion 35 are not located at different positions in the direction in which the divided cases 31, 32, and 33 are arranged side by side. Therefore, it is possible to contribute to miniaturization of the case 22 in the direction in which the divided cases 31, 32, and 33 are arranged side by side.
  • the first connecting portion 60 and the first bus bar holding portion 35 are provided at the same position in the X direction, but the present invention is not particularly limited to this.
  • the second connecting portion 70 and the first bus bar holding portion 35 may be provided at the same position in the X direction.
  • the first bus bar holding part 35 provided at the same position as the first connecting part 60 in the X direction can be omitted.
  • connection structure between the first connection part 60 and the second connection part 70 may be reversed from that in the above embodiment. That is, the second connecting portion 70 may be formed into a hole shape, and the first connecting portion 60 may be formed into an upwardly extending portion. With this configuration as well, it becomes possible to insert and connect the first connecting portion 60 into the second connecting portion 70 in addition to assembling the divided cases 31, 32, and 33 to the battery 11.
  • the direction in which the divided cases 31, 32, and 33 are arranged side by side and the direction in which the battery cells 12 are arranged in parallel do not necessarily have to match.
  • the assembly direction D of the divided cases 31, 32, 33 is not limited to the direction of the above embodiment, and may be a direction inclined to the Z direction or a direction along the X direction. In this case, the connection direction of the first connection part 60 and the second connection part 70 is changed as appropriate in accordance with the assembly direction D of the divided cases 31, 32, and 33.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
PCT/JP2023/025871 2022-08-01 2023-07-13 電池配線モジュール Ceased WO2024029304A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380054077.4A CN119585931A (zh) 2022-08-01 2023-07-13 电池布线模块
US18/995,838 US20260045662A1 (en) 2022-08-01 2023-07-13 Battery wiring module

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022122700A JP7544102B2 (ja) 2022-08-01 2022-08-01 電池配線モジュール
JP2022-122700 2022-08-01

Publications (1)

Publication Number Publication Date
WO2024029304A1 true WO2024029304A1 (ja) 2024-02-08

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Application Number Title Priority Date Filing Date
PCT/JP2023/025871 Ceased WO2024029304A1 (ja) 2022-08-01 2023-07-13 電池配線モジュール

Country Status (4)

Country Link
US (1) US20260045662A1 (https=)
JP (1) JP7544102B2 (https=)
CN (1) CN119585931A (https=)
WO (1) WO2024029304A1 (https=)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011008957A (ja) * 2009-06-23 2011-01-13 Autonetworks Technologies Ltd 電池接続アセンブリ
JP2011181402A (ja) * 2010-03-02 2011-09-15 Autonetworks Technologies Ltd 電池接続アセンブリ
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