WO2013021964A1 - 電池配線モジュールのカバー、及び電池配線モジュール - Google Patents

電池配線モジュールのカバー、及び電池配線モジュール Download PDF

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Publication number
WO2013021964A1
WO2013021964A1 PCT/JP2012/069959 JP2012069959W WO2013021964A1 WO 2013021964 A1 WO2013021964 A1 WO 2013021964A1 JP 2012069959 W JP2012069959 W JP 2012069959W WO 2013021964 A1 WO2013021964 A1 WO 2013021964A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
resin protector
bus bar
wiring module
battery wiring
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/JP2012/069959
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
治 中山
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
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries 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, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to EP12821611.6A priority Critical patent/EP2744018B1/en
Priority to US14/232,065 priority patent/US9450225B2/en
Priority to CN201280030148.9A priority patent/CN103620826B/zh
Publication of WO2013021964A1 publication Critical patent/WO2013021964A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • 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
    • H01M50/298—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
    • H01M50/50—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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a battery wiring module cover and a battery wiring module.
  • a plurality of unit cells having positive and negative electrode terminals are arranged side by side.
  • a plurality of unit cells are electrically connected by connecting the positive electrode terminal (positive electrode terminal) and the negative electrode terminal (negative electrode terminal) with a connecting member such as a bus bar. It has become.
  • a battery wiring module as described in Patent Document 1 is used.
  • Patent Document 1 Japanese Patent Application Publication No. 2011-8955
  • the electrode terminals of the unit cells are formed.
  • a connection unit is disposed on the terminal formation surface to connect each bus bar and the electrode terminal.
  • the manufacturing tolerance is set to each unit cell constituting the unit cell group to which the battery wiring module is attached, and the assembly tolerance is set between the adjacent unit cells. For this reason, the pitch interval of adjacent electrode terminals is deviated within the range of manufacturing tolerance and assembly tolerance. Further, the displacement of the pitch between the electrode terminals also occurs due to the deformation due to the expansion of the unit cell and the like.
  • the bus bar may not be attached to the electrode terminals in some cases. Therefore, a battery wiring module provided with a tolerance absorbing portion that absorbs the shift in the pitch has been considered.
  • the battery wiring module is covered with a resin cover for the purpose of, for example, insulating the bus bar and the electrode terminals from the outside after being attached to the unit cell group, but a battery wiring module having a tolerance absorbing portion is Since the shape may change due to the absorption of pitch deviation, the attached cover may come off.
  • the present invention has been completed based on the above circumstances, and it is an object of the present invention to provide a cover of a battery wiring module which can be securely attached and a battery wiring module provided with the cover.
  • the present invention provides a bus bar electrically connecting between the electrode terminals of a unit cell group formed by arranging a plurality of unit cells having positive and negative electrode terminals, and a resin protector for holding the bus bar. It is a cover which covers the said resin protector of the battery wiring module provided, Comprising: According to the shift
  • the present invention covers a bus bar electrically connecting between the electrode terminals of a unit cell group formed by arranging a plurality of unit cells having positive and negative electrode terminals, a resin protector for holding the bus bar, and the resin protector.
  • a battery wiring module including a cover, wherein the resin protector is deformable or movable according to a shift in pitch between the electrode terminals, and the cover is caused by the deformation or movement of the resin protector.
  • a battery wiring module including a shift adjustment unit configured to adjust a position shift.
  • the cover of the battery wiring module is provided with a shift adjustment portion for adjusting the shift in position of the resin protector that is deformed or moved according to the shift in pitch between the electrode terminals, so that a unit cell group is configured. Even if misalignment occurs between the electrode terminals due to manufacturing tolerances or assembly tolerances of the unit cells, and the resin protector is deformed or moved, displacement of the resin protector can be adjusted in the cover. . As a result, according to the present invention, even if the resin protector absorbs a shift in pitch between the electrode terminals and causes a shift in position, the shift adjustment portion formed on the cover adjusts the shift in position. It can be securely attached to the wiring module.
  • the present invention may be configured as follows.
  • the shift adjustment portion may be configured by a plurality of thin portions having a thickness smaller than the other portions, and a thick portion formed between two thin portions and having a thickness larger than the thin portions. .
  • the thin-walled portion having a small thickness can be made to expand and contract by bending, and the positional deviation of the resin protector can be adjusted with a simple structure.
  • the resin protector is provided with a locking portion, and the cover has a locking portion movable in a direction intersecting the arranging direction of the thin portion and the thick portion in a state engaged with the locking portion. It is good also as composition provided.
  • the misalignment adjustment unit including the thin portion and the thick portion, it is possible to adjust the positional shift in the direction in which the thin portion and the thick portion are aligned. Then, if it is set as the above composition, it will move in the direction which intersects with the direction in which the thin part and the thick part are arranged in the state where the engaged part provided on the cover is engaged with the engaging part provided on the resin protector. Thus, it is possible to adjust the positional deviation in the direction intersecting the direction in which the adjustment is performed by the deviation adjusting unit. Moreover, since the cover engages with the resin protector, the cover can be prevented from falling off.
  • the cover may be provided with a positioning portion positioned with respect to the resin protector. With such a configuration, the working efficiency when attaching the cover to the resin protector is improved.
  • FIG. 1 is a plan view of the battery module of the first embodiment.
  • FIG. 2 is a front view of the battery module.
  • FIG. 3 is a plan view of the battery module with the cover removed.
  • FIG. 4 is a plan view of the battery wiring module.
  • FIG. 5 is a plan view of the first bus bar.
  • FIG. 6 is a plan view of the second bus bar.
  • FIG. 7 is a plan view of the resin protector.
  • FIG. 8 is a plan view of the cover.
  • FIG. 9 is a front view of the battery module showing a state before the cover and the resin protector are engaged.
  • FIG. 10 is a side view of the cover in a natural state.
  • FIG. 11 is a side view of the cover in a state in which the deviation adjusting unit is extended.
  • FIG. 12 is a partial sectional view taken along the line AA of FIG.
  • FIG. 1 is a plan view of the battery module 1 according to the first embodiment
  • FIG. 2 is a front view of the battery module 1.
  • FIG. 3 is a plan view of the battery module 1 with the cover 30 removed.
  • the lower side in FIG. 1 corresponds to the front side (front side) of the battery module 1
  • the upper side in FIG. 1 corresponds to the rear side (back side) of the battery module 1.
  • the battery module 1 of the present embodiment is used, for example, as a drive source for a vehicle such as an electric vehicle or a hybrid vehicle.
  • the battery module 1 includes a unit cell group 2, a battery wiring module 10 attached to the unit cell group 2, and a cover 30 attached to the battery wiring module 10.
  • the unit cell group 2 is formed by arranging a unit cell row 2A, 2B formed by arranging four unit cells 3 in two rows at intervals.
  • the left cell row 2A in FIG. 1 is referred to as the first cell row 2A
  • the cell row 2B on the right side of the illustration is combined with the second cell row 2B.
  • Each of the cells 3 constituting the cell group 2 has a power generation element (not shown) inside.
  • the unit cell 3 includes a flat rectangular parallelepiped main body 3A including a power generation element inside, and two electrode terminals 4 (4A, 4B) provided on the upper surface 3B (terminal forming surface 3B) of the main body 3A. ing.
  • One electrode terminal 4A is a positive electrode terminal
  • the other electrode terminal 4B is a negative electrode terminal.
  • Electrode terminal 4A, 4B has a shape projecting vertically upward on the terminal formation surface 3B of the unit cell 3 respectively.
  • Electrode terminal 4A, 4B consists of a square-tube-shaped nut, and circular screw hole 5 is penetratingly formed in the center.
  • the unit cells 3 constituting the two unit cell rows 2A and 2B are arranged such that the electrode terminals 4A and 4B face upward. Then, in the unit cells 3 adjacent to each other, the unit cells 3 of the unit cell rows 2A and 2B are arranged such that the adjacent electrode terminals 4 are mutually counter electrodes. That is, in the front-rear direction of the cell row 2A, 2B, the electrode terminals 4 are alternately arranged in the positive and negative directions.
  • first cell row 2A and the second cell row 2B are provided on a holding plate (not shown) disposed on the lower surface side (surface opposite to the surface on which the terminals are formed) of each cell 3 In the mounted state, each is fixed.
  • the battery wiring module 10 is attached to the unit cell group 2 so as to be placed on the first unit cell row 2A and the second unit cell row 2B. That is, the plurality of cells 3 constituting the cell group 2 are connected by the battery wiring module 10. As shown in FIG. 4, such a battery wiring module 10 includes a plurality of bus bars 11 and a container-like resin protector 20 that accommodates the bus bars 11.
  • the bus bar 11 is made of a metal material such as copper, copper alloy, stainless steel (SUS), or aluminum processed into a predetermined shape.
  • a metal material such as copper, copper alloy, stainless steel (SUS), or aluminum processed into a predetermined shape.
  • SUS stainless steel
  • two types of bus bars 11 having different lengths are used. Among these, the longer one is called the first bus bar 11A, and the shorter one is called the second bus bar 11B.
  • the first bus bar 11A and the second bus bar 11B are collectively referred to as the bus bar 11.
  • FIG. 5 is a plan view of the first bus bar 11A.
  • the first bus bar 11A has an elongated shape, and through holes 12 through which the shaft portions 6A of the fixing bolts 6 are inserted are provided at both end portions in the longitudinal direction, respectively. There is. In addition, notches 13 are provided at each end of the first bus bar 11A so as to sandwich the through holes 12 respectively.
  • FIG. 6 is a plan view of the second bus bar 11B.
  • the second bus bar 11B is shorter than the first bus bar 11A, its basic configuration is the same as that of the first bus bar 11A.
  • the second bus bar 11B has a substantially rectangular shape, and at both ends in the longitudinal direction, the through hole 12 through which the shaft portion 6A of the fixing bolt 6 is inserted and the through hole 12 are interposed.
  • a notch 13 is provided.
  • Each bus bar 11 is bridged so as to electrically connect between the electrode terminals 4A and 4B of the counter electrodes located at a plurality of places in the cell group 2. And each cell 3 which comprises the cell group 2 is mutually connected in series by each bus-bar 11. As shown in FIG. The first bus bar 11A electrically connects between the electrode terminals 4A and 4B of the counter electrodes of the adjacent single cells 3 between the first cell row 2A and the second cell row 2B. Used for On the other hand, in each of the first cell row 2A and the second cell row 2B, the second bus bar 11B connects the electrode terminals 4A and 4B of the counter electrodes of the cells 3 adjacent to each other in the front-rear direction. , It is used to connect electrically. Each bus bar 11 is used in a state of being held by the resin protector 20 (see FIGS. 3 and 4).
  • the end of the bus bar 11 is fixed to the electrode terminal 4 in a state of being superimposed on the electrode terminal 4.
  • the position of the through hole 12 at the end of each bus bar 11 is matched with the position of the screw hole 5 of the electrode terminal 4.
  • the shaft 6A of the fixing bolt 6 is inserted into the through hole 12 of the bus bar 11 and the screw hole 5 of the electrode terminal 4, and the fixing bolt 6 is screwed so that the bus bar 11 and the electrode terminal 4 adhere closely to each other. It is screwed into the hole 5.
  • the shape of the through hole 12 provided in the bus bar 11 is a long hole shape in a top view, and is set larger than the screw hole 5 of the electrode terminal 4.
  • the through hole 12 is formed in a shape which is expanded in the longitudinal direction of the bus bar 11.
  • the bus bar 11 is provided with such an elongated hole-like through hole 12 so that the fixing bolt 6 can be inserted even if the position of the electrode terminal 4 is deviated from the originally intended position,
  • the through holes 12 of the bus bar 11 can be aligned with the screw holes 5 of the electrode terminals 4.
  • Such positional deviation of the electrode terminal 4 may be caused, for example, by a mounting error of the electrode terminal 4 in the unit cell 3, deformation due to expansion of the unit cell 3, etc., arrangement in the first unit cell row 2A and the second unit cell row 2B. It is caused by the error of the interval etc.
  • the resin protector 20 is made of an insulating synthetic resin material processed into a predetermined shape.
  • FIG. 7 is a plan view of each connection unit 21A, 21B, 21C, 21D that constitutes the resin protector 20. As shown in FIG. The resin protector 20 of this embodiment is formed by combining the four connection units 21A, 21B, 21C, and 21D shown in FIG. 7 with each other.
  • the connecting unit 21A is combined with the connecting unit 21B. And two bus-bar accommodating parts 22 (22A) which hold
  • the bus bar accommodating portion 22A is in the form of a small container extending along the left and right direction in FIG. 7, and holds the first bus bar 11A inside thereof. Further, the bus bar accommodating portion 22A is configured to be extensible and contractible along the longitudinal direction of the first bus bar 11A.
  • the bus bar accommodating portion 22A includes a bottom plate portion 23A on which the first bus bar 11A is mounted, and a peripheral wall portion 23B surrounding the bottom plate portion 23A.
  • the bottom plate portion 23A and the peripheral wall portion 23B are respectively divided into a connection unit 21A side and a connection unit 21B side.
  • Openings 24 are provided at both ends in the longitudinal direction of the bottom plate portion 23A. In the opening 24, the end of the first bus bar 11 ⁇ / b> A is exposed from the bus bar accommodation portion 22 ⁇ / b> A so as to be in contact with the electrode terminal 4.
  • a plurality of restriction protrusions 26 are provided which restrict the first bus bar 11A from rising in the thickness direction.
  • the restriction projection 26 has a shape protruding from the inner surface of the peripheral wall portion 23B, and holds the first bus bar 11A from the upper surface side toward the bottom plate portion 23A.
  • a plurality of engagement protrusions 27 that engage with the respective notch portions 13 of the first bus bar 11A are provided.
  • the engagement protrusion 27 has a shape protruding from the inner surface of the peripheral wall portion 23B, and also has a shape extending in the longitudinal direction of the first bus bar 11A.
  • the engagement protrusions 27 are set smaller than the cutouts 13, and a gap is provided in advance between both end portions in the longitudinal direction of the engagement projections 27 and the cutouts 13.
  • connection unit 21A side of the bus bar accommodating portion 22A can move in the left-right direction along the longitudinal direction of the first bus bar 11A within a range in which the engagement protrusion 27 can move in the notch 13.
  • connection unit 21B side of the bus bar accommodating portion 22A can also move in the left-right direction along the longitudinal direction of the first bus bar 11A within a range in which the engagement projection 27 can move in the cutout portion 13.
  • the bus bar accommodating portion 22A is extendable (slidable) along the longitudinal direction of the first bus bar 11A.
  • connection unit 21C is combined with the connecting unit 21D.
  • two bus-bar accommodating parts 22A which accommodate the 1st bus-bar 11A are formed of these connection units 21C and 21D.
  • the basic configuration of the bus bar accommodating portion 22A formed by the connecting units 21C and 21D is similar to that of the bus bar accommodating portion 22A formed by the two connecting units 21A and 21B described above.
  • the bus bar accommodating portion 22A formed by the connection units 21C and 21D is also extendable (slidable) along the longitudinal direction of the first bus bar 11A.
  • connection unit 21A described above is also combined with the connection unit 21C.
  • maintains and accommodates the 2nd bus-bar 11B is formed of these connection units 21A and 21C.
  • the bus bar accommodating portion 22B is in the form of a small container extending along the vertical direction in FIG. 7, and holds the second bus bar 11B inside thereof. Further, the bus bar housing portion 22B is configured to be extensible and contractible along the longitudinal direction of the second bus bar 11B.
  • the bus bar accommodating portion 22B includes a bottom plate portion 23A on which the second bus bar 11B is mounted, and a peripheral wall portion 23B surrounding the bottom plate portion 23A.
  • the bottom plate portion 23A and the peripheral wall portion 23B are respectively divided into a connection unit 21A side and a connection unit 21C side.
  • Openings 24 are provided at both ends in the longitudinal direction of the bottom plate portion 23A. In the opening 24, the end of the second bus bar 11 ⁇ / b> B is exposed from the bus bar accommodation portion 22 so as to be in contact with the electrode terminal 4.
  • a plurality of restriction protrusions 26 are provided which restrict the second bus bar 11B from rising in the thickness direction.
  • the restriction protrusion 26 has a shape protruding from the inner surface of the peripheral wall portion 23B, and holds the second bus bar 11B from the upper surface side toward the bottom plate portion 23A.
  • a plurality of engagement protrusions 27 that engage with the respective notch portions 13 of the second bus bar 11B are provided.
  • the engagement protrusion 27 has a shape projecting from the inner surface of the peripheral wall portion 23B, and also has a shape extending along the longitudinal direction of the second bus bar 11B.
  • the engagement protrusions 27 are set smaller than the cutouts 13, and a gap is provided in advance between both end portions of the engagement projections 27 in the longitudinal direction and the cutouts 13.
  • connection unit 21A side of the bus bar accommodating portion 22B can move in the vertical direction in FIG. 7 along the longitudinal direction of the second bus bar 11B within the range in which the engagement protrusion 27 can move in the notch 13.
  • connection unit 21C side of the bus bar housing portion 22B also moves in the vertical direction of FIG. 7 along the longitudinal direction of the second bus bar 11B within the range where the engagement projection 27 can move in the notch 13. Can.
  • the bus bar accommodating portion 22B is extendable (slidable) along the longitudinal direction of the second bus bar 11B.
  • connection unit 21B is also combined with the connecting unit 21D.
  • one bus-bar accommodating part 22B which accommodates the 2nd bus-bar 11B is formed of these connection units 21B and 21D.
  • the basic configuration of the bus bar accommodating portion 22B formed by the connecting units 21B and 21D is similar to that of the bus bar accommodating portion 22B formed by the connecting units 21A and 21C described above.
  • the bus bar accommodating portion 22B formed by the units 21B and 21D is also extendable (slidable) along the longitudinal direction of the second bus bar 11B.
  • connection unit 21C is provided with a bus bar accommodating portion 22 (22C) that holds and accommodates the second bus bar 11B.
  • the bus bar accommodating portion 22C does not extend and contract along the longitudinal direction of the second bus bar 11B, like the bus bar accommodating portion 22B, the bus bar accommodating portion 22C includes a bottom plate 23A and a peripheral wall 23B surrounding the bottom plate 23A.
  • the bus bar housing portion 22C is provided with the opening portion 24, the restriction projection 26 and the like, as in the case of the bus bar housing portion 22B.
  • an opening 25 is provided in each of the connection unit 21B and the connection unit 21D.
  • the electrode terminal 4 of the unit cell 3 at the rearmost (uppermost side in FIG. 3) of the second unit cell row 2B is exposed (see FIG. 3).
  • the electrode terminal 4 of the unit cell 3 located on the most front side (the lowest side in FIG. 3) of the second unit cell row 2B is exposed from the opening 25 of the connection unit 21D .
  • external connection terminals (not shown) are connected to the electrode terminals 4 exposed from the openings 25 respectively.
  • the electric wire terminal connected with an external inverter etc. is connected to these external connection terminals.
  • Such a resin protector 20 can move in the left-right direction (longitudinal direction of the first bus bar 11A) and the front-rear direction according to the positional deviation between the end of the bus bar 11 and the electrode terminal 4 caused by an attachment error of the electrode terminal 4 or the like.
  • the longitudinal direction of the second bus bar 11B it can be deformed (stretched) by extending or contracting to a certain extent.
  • the resin protector 20 formed by connecting the four connecting units 21A, 21B, 21C and 21D has one square cylindrical peripheral wall 20A as a whole (see FIG. See 3).
  • the peripheral wall 20A has a substantially rectangular shape when viewed from the upper surface, and the peripheral wall portion 23B of the bus bar accommodating portions 22A, 22B, 22C disposed outside in each of the connection units 21A, 21B, 21C, 21D and other connections It is comprised from the wall-like part of unit 21A, 21B, 21C, 21D.
  • the height of the peripheral wall 20A is set appropriately, taking into consideration that the tool is not unnecessarily brought into contact with the bus bar 11 when the battery wiring module 10 is attached to the cell group 2.
  • the height of the peripheral wall 20A is set to be the same over the entire circumference.
  • the peripheral wall in the direction in which the cell rows 2A and 2B are arranged (horizontal direction in FIG. 3) is 201A, and the peripheral wall in the vertical direction in FIG. 3 is 202A.
  • a plurality of voltage detection terminals for detecting the voltage of each unit cell 3 are provided.
  • the voltage detection terminals are stacked on the bus bars 11, and voltage detection electric wires (not shown) are connected to the voltage detection terminals by crimping or the like.
  • These voltage detection wires are connected to a battery ECU (not shown).
  • the battery ECU is equipped with a microcomputer, elements, etc., and has functions for detecting the voltage, current, temperature, etc. of each unit cell 3 and performing release charge control of each unit cell 3, etc. It is of a known configuration.
  • the two peripheral walls 201A and 201A disposed in the arranging direction (left and right direction in FIG. 3) of the two cell rows 2A and 2B in the peripheral wall 20A of the resin protector 20 28 and positioning projections 29 are provided respectively.
  • the positioning protrusion 29 is provided between two locking portions 28 provided on the peripheral wall 201A disposed at a position corresponding to the first cell row 2A.
  • a locking portion 32 provided on the cover 30 is engaged with the locking portion 28, and a positioning recess 33 (an example of a positioning portion) provided on the cover 30 is fitted to the positioning protrusion 29. It is supposed to be.
  • the positioning projection 29 is fitted in the positioning recess 33, the cover 30 is positioned with respect to the resin protector 20 when the cover 30 is attached to the resin protector 20.
  • the locking portion 28 and the positioning protrusion 29 are provided so as to protrude outward from the peripheral wall 201A.
  • the surface on the upper end side of the locking portion 28 is an inclined surface 28A that inclines from the upper side to the lower side, and the locked portion 32 is guided by the inclined surface 28A.
  • the lower surface of the inclined surface 28A of the locking portion 28 is a locking surface 28B that is in contact with the locked portion 32 and causes the locking portion 28 to be locked to the locked portion 32 ( See Figure 12).
  • the cover 30 has a substantially rectangular shape in top view, as shown in FIG.
  • the cover 30 covers the opening of the resin protector 20 (a portion surrounded by the upper end portion of the peripheral wall 20A) in order to prevent the battery module 1 from shorting or the like when a tool or the like contacts the bus bar 11. It is detachably attached to the Similar to the resin protector 20, the cover 30 is made of an insulating synthetic resin material.
  • the cover 30 includes a plate-like cover main body portion 31 and a plurality of engaged portions 32 and positioning concave portions 33 provided at an end of the cover main body portion 31 on the long side.
  • the locked portion 32 of the cover 30 is engaged with the locking portion 28 of the resin protector 20, and the positioning recess 33 is engaged with the positioning protrusion 29 of the resin protector 20 and positioned It has become.
  • the engaged portions 32 of the cover 30 have a frame shape (annular shape), and a plurality (four) of the engaged portions 32 are provided on two long side sides corresponding to the engaging portions 28.
  • the locked portion 32 includes two vertical frame portions 32A arranged in the vertical direction shown in FIG. 2 and a horizontal frame portion 32B connecting the two vertical frame portions 32A.
  • a portion surrounded by the vertical frame portion 32A and the horizontal frame portion 32B of the locked portion 32 is an opening 32C which opens the locking portion 28 so as to be insertable.
  • the size of the opening 32C of the locked portion 32 is set such that a gap 32D having a fixed size is formed between the locking portion 28 and the vertical frame portion 32A.
  • the locked portion 32 can move relative to the locking portion 28 in the long side direction (left and right direction in FIG. 1) of the resin protector 20.
  • a plurality of thin portions 34A (three in the present embodiment) having a smaller thickness than the other portions are provided at substantially the center of the cover 30;
  • a thick portion 34B (two in the present embodiment) which is formed between the two thin portions 34A and has a larger thickness than the thin portion 34A is formed.
  • the thin portion 34A and the thick portion 34B are formed in a band shape from one end (left end in FIG. 8) to the other end (right end in FIG. 8) along the longitudinal direction of the cover 30. It is formed.
  • the cover 30 can be expanded and contracted in the short side direction by bending the cover 30 at the thin portion 34A (see FIG. 12). That is, in the present embodiment, the cover 30 can move in the left-right direction in FIG. 1 with respect to the resin protector 20, and the portion formed by the thin portion 34A and the thick portion 34B functions as the shift adjustment portion 34. Do.
  • FIG. 1 two battery cell arrays 2A formed by arranging four battery cells 3 are arranged in the left-right direction. Two cell rows 2A.
  • the battery wiring module 10 shown in FIG. 4 is placed on the surface on which the electrode terminal 4 of 2B is formed. At that time, the end of each bus bar 11 of the battery wiring module 10 is superimposed on each electrode terminal 4 of each cell row 2A, 2B. Each bus bar 11 is bridged between predetermined electrode terminals 4A and 4B.
  • the external shape of the battery wiring module 10 changes in accordance with the mounting error of the electrode terminal 4 and the like.
  • the battery wiring module 10 is deformed and the resin protector 20 extends in the short side direction (the front-rear direction of the battery module 1), the distance between the adjacent ones of the locking portions 28 becomes wide.
  • the battery wiring module 10 is deformed and the resin protector 20 contracts in the short side direction (the front-rear direction of the battery module 1), the distance between the adjacent locking portions 28 becomes narrow.
  • the fixing bolt 6 is screwed into the screw hole 5 through the shaft portion 6A of the fixing bolt 6 in the through hole 12 and the screw hole 5 mutually aligned, so that the bus bar 11 adheres to the electrode terminal 4 It is fixed in the state of By fixing all the bus bars 11 to the electrode terminals 4 using fixing bolts 6, the cells 3 constituting the cell group 2 are connected in series with each other, and the cell wiring module 10 itself is a cell group Attached to 2.
  • the cover 30 is disposed above the battery wiring module 10 so as to cover the battery wiring module 10 attached to the unit cell group 2. Then, the positioning recess 33 formed in the cover main body 31 is fitted to the positioning protrusion 29 provided in the peripheral wall 20A of the resin protector 20, and the cover 30 is positioned in the resin protector 20.
  • the positions of the engaged portions 32 formed in the cover main body 31 are respectively aligned with the positions of the engaging portions 28 formed in the resin protector 20.
  • the horizontal frame portion 32B of the locked portion 32 moves downward while moving along the inclined surface 28A of the locking portion 28.
  • the locked portion 32 moves downward along the guide portion 51a, the locked portion 32 widens outward.
  • the horizontal frame portion 32B of the locked portion 32 passes the inclined surface 28A and the locking surface 28B of the locking portion 28, the locked portion 32 elastically returns, and the locking portion 28 is engaged It will be in the state where it entered in opening 32C of stop 32.
  • the locking surface 28B of the locking portion 28 is engaged with the horizontal frame portion 32B of the locked portion 32. That is, the frame-like locked portion 32 is in a state of being hooked on the protruding locking portion 28.
  • the locking surface 28B of the locking portion 28 protrudes outward beyond the opening 32C of the locked portion 32.
  • the cover 30 is prevented from moving upward and coming off. In this manner, the cover 30 is attached to the battery wiring module 10 by engaging the locking portions 28 and the locking portions 32 with each other.
  • the opening 32C of the locked portion 32 is set larger than the locking portion 28, and between the locking portion 28 and the locked portion 32, as shown in FIG.
  • the gap 32D is formed, the engaged portion 32 can move to some extent in the long side direction of the resin protector 20 in a state of being engaged with the engaging portion 28. That is, in the present embodiment, the shape of the resin protector 20 changes in the long side direction by absorbing the shift in the pitch between the electrode terminals 4 and the like, and the distance between the adjacent locking portions 28 changes. Also, the engaged portion 32 can be engaged with the engaging portion 28 while moving relative to the engaging portion 28 along the long side direction of the resin protector 20.
  • the thin portion 34A and the thick portion 34B provided on the cover 30 Since the cover 30 can be relatively moved in the direction of the short side of the resin protector 20 by the expansion / contraction of the deviation adjusting part 34 configured by the following, it can be securely attached to the resin protector 20 (FIG. 10 and FIG. 11).
  • the cover 30 of the battery wiring module 10 is formed with the deviation adjustment part 34 for adjusting the deviation of the resin protector 20 which is deformed or moved according to the deviation of the pitch between the electrode terminals 4,
  • a shift in the pitch of the electrode terminals 4 occurs due to manufacturing tolerances or assembly tolerances of the unit cells 3 constituting the unit cell group 2 or expansion of each unit cell 3 constituting the unit cell group 2 and the resin protector 20 is deformed or moved
  • the positional deviation of the resin protector 20 in the short side direction can be adjusted in the cover.
  • the shift adjustment portion 34 formed on the cover 30 Since the positional deviation is adjusted, the cover 30 can be securely attached to the battery wiring module 10.
  • the deviation adjusting unit 34 is configured of the plurality of thin portions 34A and the thick portion 34B formed between the two thin portions 34A and having a thickness larger than that of the thin portions 34A. Therefore, the thin-walled portion 34A having a small thickness can be made to expand and contract by bending, and the misalignment adjustment can be performed with a simple structure (see FIGS. 10 and 11).
  • the resin protector 20 is provided with the locking portion 28, and the cover 30 can be moved in the long side direction of the resin protector 20 in a state of being engaged with the locking portion 28. Since the stop portion 32 is provided, the locking portion 32 provided on the cover 30 moves in the long side direction of the resin protector 20 in a state engaged with the locking portion 28 provided on the resin protector 20, The misalignment adjustment section 34 can adjust the misalignment in the direction intersecting the short side direction of the resin protector 20. Further, according to the present embodiment, since the cover 30 is engaged with the resin protector 20, it is possible to reliably prevent the cover 30 from falling off.
  • the positioning recess 33 positioned to the resin protector 20 is provided in the cover 30, the working efficiency when attaching the cover 30 to the resin protector 20 is improved.
  • the offset adjustment portion 34 is provided by alternately providing the thin portions 34A and the thick portions 34B along the long side direction of the resin protector 20. It may be provided along the short side direction of. Further, the number of thin portions 34A and thick portions 34B is not limited to the number shown in FIG. (2) In the above embodiment, although four locking portions 28 are provided on the peripheral wall 201A along the direction in which the unit cell rows 2A and 2B of the resin protector 20 are arranged, they are arranged in the short side direction of the resin protector 20 The locking portion 28 may be formed on the peripheral wall 202A.
  • the number of the locking portions 28 may be different between the two peripheral walls 201A and 201A.
  • the positioning recess 33 is provided on the cover 30 as a positioning unit, but a projecting positioning portion may be provided on the cover 30 and the projecting positioning portion of the cover 30 may be fitted or locked.
  • the positioning recess 33 may be provided in the resin protector 20.
  • the battery wiring module 10 provided with one cover 30 has been shown in the above embodiment, it may be a battery wiring module provided with two or more covers 30.
  • it when it is set as the structure provided with the one cover 30 like Embodiment 1, since an attachment operation can be made simple, it is preferable.
  • the single battery group 2 in which the single battery rows 2A and 2B are arranged in two rows is shown in the above embodiment, the single battery row may be one row or three or more rows.
  • the resin protector which connects a plurality of connection units was shown, it is not limited to this.
  • the resin protector may be composed of a plurality of unconnected units. In the case of providing a resin protector composed of a plurality of units, the cover may be provided for each unit, or one cover may be provided for the plurality of units.

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)
PCT/JP2012/069959 2011-08-08 2012-08-06 電池配線モジュールのカバー、及び電池配線モジュール Ceased WO2013021964A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12821611.6A EP2744018B1 (en) 2011-08-08 2012-08-06 Battery wiring module
US14/232,065 US9450225B2 (en) 2011-08-08 2012-08-06 Cover for battery wiring module, and battery wiring module
CN201280030148.9A CN103620826B (zh) 2011-08-08 2012-08-06 电池布线模块的保护盖及电池布线模块

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-172855 2011-08-08
JP2011172855A JP5209766B2 (ja) 2011-08-08 2011-08-08 電池配線モジュールのカバー、及び電池配線モジュール

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WO2013021964A1 true WO2013021964A1 (ja) 2013-02-14

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Country Link
US (1) US9450225B2 (https=)
EP (1) EP2744018B1 (https=)
JP (1) JP5209766B2 (https=)
CN (1) CN103620826B (https=)
WO (1) WO2013021964A1 (https=)

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WO2015015812A1 (ja) * 2013-07-30 2015-02-05 株式会社オートネットワーク技術研究所 配線モジュール
CN104953056A (zh) * 2014-03-31 2015-09-30 比亚迪股份有限公司 模块化电池模组壳体和具有其的电池模组
CN105074959A (zh) * 2013-03-27 2015-11-18 株式会社自动网络技术研究所 配线模块
JP2017199534A (ja) * 2016-04-27 2017-11-02 株式会社オートネットワーク技術研究所 接続モジュール

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JP6230960B2 (ja) * 2014-06-04 2017-11-15 株式会社オートネットワーク技術研究所 蓄電モジュールのカバー
CN106784569B (zh) * 2017-01-17 2023-08-15 华霆（合肥）动力技术有限公司 便于维修的电源装置及供电系统
EP3602589A4 (en) * 2017-03-31 2021-01-06 Maxwell Technologies, Inc. SYSTEMS AND PROCEDURES WITH OPEN-CELL PACKAGE MODULES
JP7004197B2 (ja) * 2017-09-22 2022-01-21 株式会社オートネットワーク技術研究所 電気接続部材
JP6772203B2 (ja) * 2018-01-16 2020-10-21 株式会社オートネットワーク技術研究所 接続モジュール
JP6991468B2 (ja) * 2018-02-27 2022-01-12 住友電気工業株式会社 セルスタック、及びレドックスフロー電池
US10622612B2 (en) 2018-04-19 2020-04-14 Ford Global Technologies, Llc Low voltage bus bar in high voltage battery enclosure
EP3595036B1 (en) * 2018-07-10 2023-03-29 Yazaki Corporation Bus bar module
US11289775B2 (en) * 2018-08-29 2022-03-29 Sumitomo Wiring Systems, Ltd. Battery wiring module including elastic joiners
JP7452225B2 (ja) * 2020-04-23 2024-03-19 住友電装株式会社 電池配線モジュール用梱包容器
JP7505265B2 (ja) 2020-05-25 2024-06-25 住友電装株式会社 電池配線モジュール
WO2024209561A1 (ja) * 2023-04-04 2024-10-10 スミダコーポレーション株式会社 電子部品の製造方法、電子部品およびバスバー

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CN105074959A (zh) * 2013-03-27 2015-11-18 株式会社自动网络技术研究所 配线模块
CN105074959B (zh) * 2013-03-27 2018-03-30 株式会社自动网络技术研究所 配线模块
WO2015015812A1 (ja) * 2013-07-30 2015-02-05 株式会社オートネットワーク技術研究所 配線モジュール
CN104953056A (zh) * 2014-03-31 2015-09-30 比亚迪股份有限公司 模块化电池模组壳体和具有其的电池模组
JP2017199534A (ja) * 2016-04-27 2017-11-02 株式会社オートネットワーク技術研究所 接続モジュール
WO2017187959A1 (ja) * 2016-04-27 2017-11-02 株式会社オートネットワーク技術研究所 接続モジュール
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Also Published As

Publication number Publication date
US9450225B2 (en) 2016-09-20
CN103620826B (zh) 2016-03-30
EP2744018B1 (en) 2015-11-04
JP2013037878A (ja) 2013-02-21
JP5209766B2 (ja) 2013-06-12
CN103620826A (zh) 2014-03-05
US20140154551A1 (en) 2014-06-05
EP2744018A1 (en) 2014-06-18
EP2744018A4 (en) 2015-01-14

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