WO2017138318A1 - Barre omnibus et procédé de production de barre omnibus - Google Patents

Barre omnibus et procédé de production de barre omnibus Download PDF

Info

Publication number
WO2017138318A1
WO2017138318A1 PCT/JP2017/001653 JP2017001653W WO2017138318A1 WO 2017138318 A1 WO2017138318 A1 WO 2017138318A1 JP 2017001653 W JP2017001653 W JP 2017001653W WO 2017138318 A1 WO2017138318 A1 WO 2017138318A1
Authority
WO
WIPO (PCT)
Prior art keywords
bus bar
conductive path
electrode terminals
path
flat plate
Prior art date
Application number
PCT/JP2017/001653
Other languages
English (en)
Japanese (ja)
Inventor
治 中山
直樹 福島
克司 宮崎
成志 木村
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2017138318A1 publication Critical patent/WO2017138318A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/02—Mountings
    • H01G2/04—Mountings specially adapted for mounting on a chassis
    • 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
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
    • 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

  • a plurality of power storage elements are connected in series or in parallel by connecting adjacent electrode terminals of a plurality of power storage elements having positive and negative electrode terminals with a bus bar.
  • a plurality of bus bars are embedded in a battery connection plate mounted on a battery assembly composed of a plurality of square batteries, and each bus bar is screwed and fixed to an electrode with a bolt or the like.
  • the adjacent electrodes of the square battery are connected by a bus bar.
  • the cross-sectional area of the shape of the bus bar is constant, the surface area of the bus bar increases if the plate thickness is reduced and the dimension in the width direction, which is the direction orthogonal to the connection direction between the electrodes, is increased. It is preferable from the viewpoint of heat dissipation.
  • the dimension of the bus bar in the width direction is increased, there is a problem that a space for arranging the bus bar is increased, which is contrary to a request for downsizing a member such as a power storage module to which the bus bar is mounted.
  • the technology described in the present specification has been completed based on the above circumstances, and provides a bus bar capable of suppressing an increase in size even when the plate thickness is reduced. With the goal.
  • the bus bar described in the present specification is a bus bar having a constant thickness dimension that is connected to the electrode terminals of a plurality of power storage elements having positive and negative electrode terminals to form a conductive path, and has a flat plate surface. And a bent portion extending in a direction along the path of the conductive path in a shape bent with respect to the plate surface of the flat plate section in a direction intersecting with the path of the conductive path.
  • the bus bar manufacturing method described in this specification is a method for manufacturing a bus bar having a certain thickness dimension that is connected to the electrode terminals of a plurality of power storage elements having positive and negative electrode terminals to form a conductive path.
  • a bent portion extending in a direction along the path of the conductive path in a shape bent with respect to the plate surface in a direction intersecting the path of the conductive path with respect to a flat metal plate material having a flat plate surface Form.
  • the curved surface of the bending portion in the direction intersecting the path of the conductive path can increase the surface area of the bus bar while suppressing an increase in the dimension in the width direction with respect to the path direction of the conductive path.
  • the “constant thickness dimension” includes a configuration in which the thickness dimension slightly changes. For example, the deviation of the thickness dimension between the bent portion and the flat plate portion that occurs when a bent portion is formed by bending a metal plate material of a constant thickness with a die of a press machine is included in the range of the constant thickness dimension. Can be.
  • the bent portion is bent into a waveform composed of a peak portion and a valley portion. In this way, the surface area of the bus bar can be increased.
  • the flat plate portion includes a pair of connection portions connected to the pair of electrode terminals, and a connection portion that connects the pair of connection portions so that the conductive path bypasses in a direction connecting the pair of connection portions. And the bent portion is formed in the connecting portion. If it does in this way, the surface area of a bus-bar can be increased according to the length which a conductive path detours by a connection part.
  • the top view which shows the electrical storage module of Embodiment 1 Top view showing the bus bar Right side view showing the busbar The top view which shows the electrical storage module of Embodiment 2. Top view showing the bus bar Right side view showing the busbar The top view which shows the bus-bar of other embodiment The top view which shows the bus-bar of other embodiment
  • the bus bar 20 of this embodiment is attached to the power storage module 10.
  • the power storage module 10 is mounted on a vehicle such as an electric vehicle or a hybrid vehicle, and is used as a power source for driving the vehicle.
  • the X direction is the front
  • the Y direction is the left
  • the Z direction is the upper.
  • the power storage module 10 includes a plurality (two in the present embodiment) of power storage elements 11 arranged on the left and right, and a bus bar 20 attached to the plurality of power storage elements 11.
  • Each power storage element 11 includes a box-shaped main body 12 in which a power storage element (not shown) is accommodated in a flat rectangular parallelepiped case, and bolt-shaped electrode terminals 13A that protrude vertically from the upper surface of the main body 12.
  • 13B illustrated as positive electrode 13A and negative electrode 13B.
  • the electrode terminals 13 ⁇ / b> A and 13 ⁇ / b> B have a flat rectangular base portion on which the plate surface of the bus bar 20 is placed.
  • the electrode terminals 13A and 13B may be fastened with bolts, for example, as nuts.
  • the polarity (positive / negative) direction of the plurality of power storage elements 11 is arranged so that the power storage elements 11 adjacent to each other are opposite to each other, and thereby the electrode terminals 13A and 13B having different polarities are adjacent to each other.
  • the front electrode terminals 13A and 13B located at the end of the series connection are connected to an external device such as an inverter via an electric wire (not shown).
  • the bus bar 20 is made of a metal plate material having a certain thickness such as copper, copper alloy, aluminum, aluminum alloy, stainless steel (SUS), etc., and has a substantially U-shaped conductive path as shown in FIGS.
  • the pair of connection portions 22 connected to the pair of electrode terminals 13A and 13B and the pair of connection portions 22 (and the pair of electrode terminals 13A and 13B) are linearly connected to the direction (left and right direction).
  • the connecting portion 25 is connected so as to bypass the conductive path.
  • a circular through hole 23 through which the bolt-shaped electrode terminals 13A and 13B can be inserted is formed through the connecting portion 22.
  • the electrode terminals 13A and 13B and the connecting portion 22 are connected by passing the electrode terminals 13A and 13 through the through hole 23 and fastening them with nuts.
  • the above-described bus bar 20 has a flat plate surface, and is formed in the flat plate portion 21 including the entire connection portion 22 and a part of the connection portion 25, and the connection portion 25, and the path of the conductive path (the connection portion 25). And a bent portion 26 having a shape bent with respect to the surface of the flat plate portion 21 in a direction (front-rear direction; an example of “a direction intersecting the path of the conductive path”) orthogonal to the path extending in the left-right direction in FIG.
  • the bent portion 26 extends in the left-right direction (the direction along the path of the conductive path) over the entire length of the connecting portion 25 in the left-right direction, on one side of the peak portion 27A protruding upward and on both sides of the peak portion 27A. It has a plurality of valleys 27B recessed downward, and the peaks 27A and valleys 27B are alternately connected to form a waveform.
  • the manufacturing method of the bus bar 20 can be manufactured by placing a metal plate material on a die of a press machine and punching and bending the metal plate material with a die.
  • the bus bar 20 is a bus bar 20 of a certain thickness dimension that is connected to the electrode terminals 13A and 13B of the plurality of power storage elements 11 having the positive and negative electrode terminals 13A and 13B to form a conductive path, and is a flat plate surface And a bent portion 26 that extends in the left-right direction (direction along the path of the conductive path) in a shape bent with respect to the plate surface of the flat plate section 21 in the front-rear direction (direction intersecting the path of the conductive path). And comprising.
  • the surface area of the bus bar 20 can be increased while suppressing an increase in the dimension in the width direction (front-rear direction) with respect to the path direction of the conductive path.
  • the “constant thickness dimension” includes a configuration in which the thickness dimension slightly changes.
  • the bending part 26 is made into the shape bent in the waveform which consists of the peak part 27A and the trough part 27B.
  • the surface area of the bus bar 20 can be increased as compared with the configuration in which the bent portion is formed only from one of the peak portion 27A and the valley portion 27B.
  • the flat plate portion 21 includes a pair of connection portions 22 connected to the pair of electrode terminals 13A and 13B, and the conductive path bypasses the direction in which the through holes 23 of the pair of connection portions 22 are connected by a short path.
  • the connecting portion 25 is connected to a pair of connecting portions 22, and a bent portion 26 is formed in the connecting portion 25.
  • the surface area of the bus bar 20 can be increased according to the length of the conductive path detoured by the connecting portion 25.
  • Embodiment 2 will be described with reference to FIGS. 4 to 6.
  • FIG. The power storage module 30 of the second embodiment uses a bus bar 31 that constitutes a crank-shaped conductive path.
  • the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • the direction of the adjacent power storage elements 11 in the power storage module 30 is the same as that of the first embodiment, and the adjacent electrode terminals 13A and 13A (13B and 13B) are the same. It is polar.
  • the bus bar 31 includes a flat plate portion 37 having a flat plate surface and a bent portion 26.
  • the bus bar 31 has a pair of connection portions 32 connected to the pair of electrode terminals 13A and 13B and a pair of connection portions so that the conductive path bypasses the direction connecting the pair of connection portions 32 (an oblique direction). It has the connection part 35 which connects the part 32 in a crank shape.
  • the connecting portion 35 is formed with a bent portion 26 extending in the left-right direction (the direction along the direction in which the connecting portion is connected).
  • the connecting portion 32 is formed in the flat plate portion 37, and a circular through hole 33 through which the bolt-shaped electrode terminals 13A and 13B can be inserted is formed.
  • the bending portion 26 expands and contracts in the direction of assembly tolerance (front-rear direction) according to the assembly accuracy error (front-rear direction error) between the adjacent power storage elements 11 to absorb the error. Therefore, it is possible to suppress a problem in assembling the bus bar 31 to the electrode terminals 13A and 13B due to an error in assembling accuracy between the adjacent power storage elements 11.
  • the technology described in the present specification is not limited to the embodiments described with reference to the above description and drawings.
  • the following embodiments are also included in the technology described in this specification.
  • the shape of the bending part 26 is not restricted to the shape of the said embodiment.
  • the trough part 27B may be one.
  • the bending part may have only one of the peak part 27A and the trough part 27B.
  • the bus bars 20 and 31 are bolted to the electrode terminals 13A and 13B.
  • the present invention is not limited to this.
  • the bus bars 40 and 50 may be connected to the electrode terminals 13A and 13B by laser welding.
  • the through-hole 23 of the bus bar 20 of the first embodiment is eliminated as in the bus bar 40 of FIG. 7, and the connection portion 42 is formed by laser welding, or the bus bar 31 of the second embodiment is passed through like the bus bar 50 of FIG. It is good also as the connection part 22 which loses the hole 33 and is laser-welded.
  • the plate thickness is thinner as compared with the configuration in which the bus bars 20 and 31 are bolted to the electrode terminals 13A and 13B because the weldability is improved.
  • connection means such as ultrasonic welding and resistance welding.
  • the bus bars 20, 31, 40, and 50 connecting the electrode terminals 13 ⁇ / b> A and 13 ⁇ / b> B of the electricity storage device 11 are used, but the present invention is not limited to this.
  • the electrical storage elements 11 which comprise the electrical storage module 10, it is not restricted to the number of the said embodiment. Moreover, although the electrical storage element 11 was a battery, it is not restricted to this, For example, it is good also as a capacitor.
  • Power storage module 11 Power storage element 12: Body portion 13A, 13B: Electrode terminals 20, 31, 40, 50: Busbar 21, 37: Flat plate portions 22, 32, 42: Connection portions 25, 35: Connection portion 26 : Bending part

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

La présente invention concerne une barre omnibus d'épaisseur fixe 20 connectée à des bornes d'électrode positive et négative 13A, 13B d'une pluralité d'éléments de stockage d'énergie 11 comportant les bornes d'électrode 13A, 13B, la barre omnibus 20 faisant partie d'un trajet conducteur, la barre omnibus 20 étant pourvue d'une partie de plaque plate 21 ayant une surface de plaque plate, et une partie de courbure 26 s'étendant dans la direction suivant le chemin du trajet conducteur dans une forme qui est courbée par rapport à la surface de plaque de la partie de plaque plate 21 par rapport à la direction croisant le chemin du trajet conducteur.
PCT/JP2017/001653 2016-02-09 2017-01-19 Barre omnibus et procédé de production de barre omnibus WO2017138318A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016022356A JP2017142923A (ja) 2016-02-09 2016-02-09 バスバー及びバスバーの製造方法
JP2016-022356 2016-02-09

Publications (1)

Publication Number Publication Date
WO2017138318A1 true WO2017138318A1 (fr) 2017-08-17

Family

ID=59563237

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/001653 WO2017138318A1 (fr) 2016-02-09 2017-01-19 Barre omnibus et procédé de production de barre omnibus

Country Status (2)

Country Link
JP (1) JP2017142923A (fr)
WO (1) WO2017138318A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3624218B1 (fr) * 2018-09-14 2021-05-05 Contemporary Amperex Technology Co., Limited Module de batterie

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009041018A1 (fr) * 2007-09-28 2009-04-02 Kabushiki Kaisha Toshiba Bloc-piles
JP2010113961A (ja) * 2008-11-06 2010-05-20 Denso Corp 組電池
JP2010212155A (ja) * 2009-03-11 2010-09-24 Mitsubishi Heavy Ind Ltd 端子接続部材及び組電池
JP2012155948A (ja) * 2011-01-25 2012-08-16 Auto Network Gijutsu Kenkyusho:Kk 組電池用バスバー及びバスバーモジュール
JP2014165044A (ja) * 2013-02-26 2014-09-08 Auto Network Gijutsu Kenkyusho:Kk 接続部材および配線モジュール
JP2015099759A (ja) * 2013-11-20 2015-05-28 株式会社東芝 組電池用バスバーおよび組電池
US20160308187A1 (en) * 2015-04-14 2016-10-20 Ford Global Technologies, Llc Busbar Assembly for Vehicle Traction Battery

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009041018A1 (fr) * 2007-09-28 2009-04-02 Kabushiki Kaisha Toshiba Bloc-piles
JP2010113961A (ja) * 2008-11-06 2010-05-20 Denso Corp 組電池
JP2010212155A (ja) * 2009-03-11 2010-09-24 Mitsubishi Heavy Ind Ltd 端子接続部材及び組電池
JP2012155948A (ja) * 2011-01-25 2012-08-16 Auto Network Gijutsu Kenkyusho:Kk 組電池用バスバー及びバスバーモジュール
JP2014165044A (ja) * 2013-02-26 2014-09-08 Auto Network Gijutsu Kenkyusho:Kk 接続部材および配線モジュール
JP2015099759A (ja) * 2013-11-20 2015-05-28 株式会社東芝 組電池用バスバーおよび組電池
US20160308187A1 (en) * 2015-04-14 2016-10-20 Ford Global Technologies, Llc Busbar Assembly for Vehicle Traction Battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3624218B1 (fr) * 2018-09-14 2021-05-05 Contemporary Amperex Technology Co., Limited Module de batterie

Also Published As

Publication number Publication date
JP2017142923A (ja) 2017-08-17

Similar Documents

Publication Publication Date Title
JP5715766B2 (ja) 配線材の接続構造
US9799872B2 (en) Battery module
JP7324340B2 (ja) 電池モジュール
JP2018055843A (ja) 電池監視ユニット
JP6247448B2 (ja) 電源装置
JP2011040332A (ja) バスバ
JP6380700B2 (ja) バスバー
JP2007012487A (ja) 電源装置
JP6510666B2 (ja) 導電部材モジュールおよび電池パック
JP2019207824A (ja) 配線モジュール、及び蓄電モジュール
CN109148802B (zh) 母线以及具备该母线的连接模块
JP2015041586A (ja) 組電池のブスバおよび組電池
CN105390648A (zh) 蓄电装置
CN113519086A (zh) 母线以及使用母线的电池模块
JP2016100210A (ja) 蓄電モジュール
WO2015012333A1 (fr) Appareil de stockage d'électricité et procédé de fabrication d'appareil de stockage d'électricité
JP7390324B2 (ja) 配線モジュール
WO2017138318A1 (fr) Barre omnibus et procédé de production de barre omnibus
US20180083250A1 (en) Method for connecting several galvanic cells and cell connector therefore
JP6064804B2 (ja) 電力変換装置
JP5887724B2 (ja) 電源モジュール接続構造
JP2008198525A (ja) 電源装置
JP6345089B2 (ja) 蓄電装置
JP6015594B2 (ja) 蓄電装置
JP6206569B2 (ja) 電力変換装置

Legal Events

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

Ref document number: 17750043

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17750043

Country of ref document: EP

Kind code of ref document: A1