JP2000077056A - Power source device and connecting method of lead-out lead wire - Google Patents

Power source device and connecting method of lead-out lead wire

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Publication number
JP2000077056A
JP2000077056A JP24639998A JP24639998A JP2000077056A JP 2000077056 A JP2000077056 A JP 2000077056A JP 24639998 A JP24639998 A JP 24639998A JP 24639998 A JP24639998 A JP 24639998A JP 2000077056 A JP2000077056 A JP 2000077056A
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connected
terminal
side
positive electrode
cable
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JP24639998A
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Japanese (ja)
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JP4379931B2 (en )
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Shigeru Murakami
村上  茂
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Sony Corp
ソニー株式会社
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/12Battery technologies with an indirect contribution to GHG emissions mitigation

Abstract

PROBLEM TO BE SOLVED: To enhance reliability of connection between an electrode of each unit cell and a lead-out lead wire for voltage detection for example, save cost in wiring work, and enhance safety.
SOLUTION: This device 1 has an intercell bus bar 9 for connecting in series a plurality of unit cells 2 to which a positive electrode cover and a negative electrode cap are fixed, and a terminating bus bar 11 for connecting a terminating unit cell 2 and a cable 12 connected to an outside output terminal, and a corrugated part formed by folding up a plane-shaped part and a connecting part formed by closely tightening the end are formed in the terminating bus bar 11. In the device 1, a voltage detecting wire 14 is welded directly or through a rod-like crimp-style terminal to the positive electrode cover or the negative electrode cap of the unit cells 2 by applying pressure with a welding electrode.
COPYRIGHT: (C)2000,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、電気自動車の駆動モータ等の装置本体に対して大電流を出力する電源装置及びこの電源装置を構成する各単電池に電圧検出線等の引き出し導線を接続する引き出し導線の接続方法に関する。 BACKGROUND OF THE INVENTION The present invention connects the drawer conductors of the voltage detecting lines and the like in the cells constituting the power supply and the power supply unit to output a large current to the apparatus main body such as a driving motor of an electric vehicle connection of the drawer conductors that relates.

【0002】 [0002]

【従来の技術】電気自動車等に積載され車両駆動用のモータに対し大電流を供給する電源装置は、複数個の単電池が直列に接続された組電池を内蔵して構成されている。 Loaded BACKGROUND OF THE INVENTION electric vehicle such as a power supply device for supplying a large current to the motor for driving the vehicle, a plurality of unit cells is configured with a built-in battery pack connected in series.

【0003】従来の電源装置は、組電池を構成する単電池間の接続が接続導体(以下、バスバーと称する。)を各単電池の端子部にネジ止めすることにより行われていた。 Conventional power supply connection connecting conductors between cells constituting an assembled battery (hereinafter, referred to as the bus bar.) Was been performed by screwing to the terminal portion of each cell. 具体的には、従来の電源装置は、一の単電池の正極部にネジ止めされたバスバーを他の単電池の負極部にネジ止めすることにより各単電池が電気的に接続されて構成されていた。 Specifically, the conventional power supply device, each cell is formed by electrically connecting by screwing the screwed bus bars to the positive electrode portion of one unit cell to the negative electrode portion of other unit cells which was. 電池間接続用のバスバーは、各単電池の正極部又は負極部に設けられたネジ穴、或いは正極部又は負極部に溶接されたネジ穴のついた部材にネジ止めされていた。 Bus bar for inter-battery connection has been screwed on with a member of each single battery cathode unit or a screw hole provided on the negative electrode portion of the or screw holes that are welded to the positive electrode portion or the negative electrode unit.

【0004】また、電源装置は、電気自動車等に積載する場合に、外部出力用のケーブルによって組電池を構成する単電池のうち終端の単電池と電気自動車等とが電気的に接続されている。 [0004] The power supply device, when loading the electric vehicle or the like, the unit cell of the end of the unit cell and the electric vehicles are electrically connected to the assembled battery by a cable for external output . 従来の電源装置は、外部出力用のケーブルが組電池の終端の単電池の正極部又は負極部にネジ止めできるように端末処理が施され終端の単電池にネジ止めされていた。 Conventional power supply apparatus has been screwed to the unit cell of the terminal process is performed end to be screwed to the positive electrode portion or the negative electrode of the unit cell cable for external output end of the battery pack.

【0005】さらに、電源装置においては、組電池を構成する各単電池の状態を観察する等のために各単電池ごとに電圧検出線等の引き出し導線を接続する場合がある。 [0005] Further, in the power supply device may connect the drawer conductors of the voltage detecting lines and the like for each unit cell for such observing the state of each cell constituting the battery pack. 従来の電源装置においては、上述した外部出力用のケーブルと同様に、引き出し導線にもネジ止めできるように端末処理が施され、各単電池の正極部又は負極部にネジ止めによって接続されていた。 In conventional power supply device, as well as the cable for external output described above, the terminal processing to allow screwing subjected to pull-out lead wire were connected by screwing to the positive electrode portion or the negative electrode of each cell .

【0006】従来の電源装置は、上述したケーブルや引き出し導線のネジ止めがネジ穴加工やタップ立て等の処理が電池本体よりも容易なバスバー部分において行われる場合が多い。 Conventional power supplies are often screwed in the above-mentioned cable and drawers conductors processing such as screw hole working or tapping is performed in easy bus bar portions than cell body. このため、従来の電源装置は、複数個の単電池がバスバーにより電気的に接続された後に、ケーブルや引き出し導線等のネジ止めが行われてが接続されていた。 Therefore, the conventional power supply device, after which a plurality of unit cells are electrically connected by bus bars, screws such as a cable or drawers conductor been conducted to have been connected.

【0007】 [0007]

【発明が解決しようとする課題】しかしながら、従来の電源装置は、車両等に積載して使用した場合に、上述したようにネジ止めされた外部出力用のケーブルや引き出し導線を単電池に接続するネジ部分が振動等によって緩んでしまう場合がある。 [SUMMARY OF THE INVENTION However, the conventional power supply device, when used in stacked on a vehicle or the like, to connect the cables and drawers wire for external output which is screwed as described above in single cells there are cases where threaded portion will loose due to vibration or the like. 従来の電源装置においては、単電池と引き出し導線等とを接続するネジが緩むと接触抵抗が増大して長期的に安定した接続の信頼性を得ることが難しく、接続の信頼性が低いという問題があった。 In the conventional power supply device, it is difficult to obtain a reliable long-term stable connection contact resistance with the screw that connects the drawer conductors such as single cells loosening is increased, is low reliability of the connection problems was there.

【0008】また、従来の電源装置においては、接続される単電池又はバスバー側及び接続する引き出し導線側においてネジ止めするための様々な処理、例えば線材の端末処理や単電池又はバスバー側のネジ穴加工等を施す必要や、線材を取り付けるスペースを単電池等の側で確保する必要があった。 Further, in the conventional power supply device, various processes, for example, screw holes of the terminal processing and single cell or bus bar side of the wire for screwing in a single cell or bus bar side and connected to the drawer wire side is connected machining or the like necessary and performing, a space for mounting the wire had to be secured on the side of such unit cells. 従来の電源装置においては、上述したような端末処理等や、単電池等と引き出し導線等とをネジ止めする場合のコストや作業者の負担が増加する等の問題があった。 In conventional power supply device, a terminal treatment, etc. and as mentioned above, the cost and operator's burden when the single battery or the like and a lead wire or the like screwed there is a problem such as increasing.

【0009】さらに、従来の電源装置は、バスバーにより各単電池を接続後に引き出し導線等をネジ止めする場合に、数本分の単電池の電位が引き出し導線等にかかり、配線作業において作業者が感電する危険性が高くなり、作業上の安全性の面で問題があった。 Furthermore, the conventional power supply device, when screwing the drawer wires or the like after connecting the unit cells by bus bars relates to several minutes of the cells of the potential drawer conductor like the worker in the wiring work risk of electric shock is increased, there has been a problem in terms of safety on the work.

【0010】そこで、本発明は、各単電池の電極と引き出し導線との接続信頼性が高く、配線作業の際の安全性が改善された電源装置及び引き出し導線の接続方法を提供することを目的にするものである。 [0010] Therefore, the present invention aims to connection reliability between the electrode and the lead wires of each cell is high, safety when the wiring operation is to provide a method of connecting improved power supply and the lead wires it is intended to be.

【0011】 [0011]

【課題を解決するための手段】上述した目的を達成する本発明に係る電源装置は、正極側及び/又は負極側に円筒状電極端子が取り付けられた複数の単電池が組み合わされて構成される組電池と、組電池を構成する単電池を直列に接続する電池間用接続導体と、組電池の終端の単電池と外部出力端子に接続されたケーブルとを接続する終端用接続導体とを備えて構成され、終端用接続導体の一端側に単電池の正極側及び負極側に取り付けられた円筒状電極端子に接続される円筒部が形成されるとともに、他端側に平板状部が波状に折りたたまれかつ絞り込まれて形成されている。 SUMMARY OF THE INVENTION The power according to the present invention for solving the above apparatus is configured cathode side and / or a cylindrical electrode terminal are combined a plurality of cells attached to the negative electrode side comprises a battery pack, the connecting conductor between the battery for connecting the unit cells constituting the battery pack in series, a terminating connection conductor for connecting the cable connected to the unit cell and the external output terminal of the end of the battery pack configured Te, along with cylindrical portion connected to the cylindrical electrode terminal attached to the positive electrode side and negative electrode side of the cell is formed on one end side of the terminal connection conductors, flat portion is in a wave to the other end It is formed folded and narrowed in. 終端用接続導体は、絞り込まれて形成された他端側と外部出力端子に接続されたケーブルとがスリーブ型の圧着端子に通され、かしめられることによりケーブルと接続されている。 Terminating connection conductor is connected to the cable by a narrowed formed another end side and a cable connected to the external output terminal is passed through the crimp terminal of the sleeve type, or crimped.

【0012】また、本発明に係る電源装置は、上述した終端用接続導体の一端側に単電池の正極側及び/又は負極側に取り付けられた円筒状電極端子に接続される円筒部が形成されるとともに、他端側に平板状部が形成され、この平板状部の一辺に沿ってケーブルが挿入されるチューブ状部が形成されている。 [0012] The power supply device according to the present invention, a cylindrical portion connected to the positive electrode side and / or the cylindrical electrode terminal attached to the negative electrode side of the cell is formed on one end side of the terminal connection conductors described above Rutotomoni tabular portion is formed at the other end, the tubular portion where the cable is inserted along one side of the flat plate-like portion is formed. 終端用接続導体は、チューブ状部の外側から少なくとも1個の圧着部材でかしめられることによりケーブルと接続されている。 Terminating connection conductor is connected to the cable by caulking at least one crimping member from the outside of the tubular portion.

【0013】本発明に係る引き出し導線の接続方法は、 [0013] Connection of the drawer conductor according to the present invention,
単電池の正極側及び負極側に取り付けられた円筒状電極端子と引き出し導線又は引き出し導線が接続された棒状の圧着端子とを溶接電極によって上記円筒状部材の内側と外側から挟み込んで加圧することにより上記単電池の各電極に引き出し導線を接続する。 The positive electrode side and the negative electrode and the cylindrical electrode terminal attached to the side lead wire or crimped terminal and the welding electrode rod-shaped drawer conductor is connected in the unit cells by pressurizing sandwiched from inside and outside of the cylindrical member connecting a drawer wires to the electrodes of the unit cell.

【0014】上述した構成を有する本発明に係る電源装置によれば、終端用接続導体に単電池の円筒状電極端子と同様の円筒部が形成されるため、終端用接続導体に単電池が嵌合されかつその嵌合部において内側と外側から加圧することにより溶接可能とされる。 According to the power supply device according to the present invention having the construction described above, since the cylindrical portion similar to the cylindrical electrode terminals of the cells at the end connection conductor are formed, a single cell is fitted to the end connection conductor the combined and are weldable by pressurizing from inside and outside at the fitting portion. 本発明に係る電源装置は、終端用接続導体と単電池とが上述したように溶接可能とされることにより、終端用接続導体に接続された外部出力用のケーブルとの接続の信頼性が向上する。 Power supply device according to the present invention, by a terminating connection conductor and the single cell is capable welded as described above, improves the reliability of the connection between the cable for external output connected to terminal connection conductor to. また、本発明に係る引き出し導線の接続方法によれば、複数の単電池が電気的に接続される前の各単電池と引き出し導線又は引き出し導線が接続された棒状圧着端子とが溶接により接続されるため、煩雑な配線作業による感電事故の防止を可能とする。 Further, according to the method of connecting the lead-out wire of the present invention, the rod-like crimp terminals each cell and the lead wires or lead-out wires are connected before the plurality of unit cells are electrically connected are connected by welding because, to enable the prevention of electric shock due to complicated wiring work.

【0015】 [0015]

【発明の実施の形態】以下、本発明に係る電源装置及び引き出し導線の接続方法の具体的な実施の形態について図面を参照しながら詳細に説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, will be described in detail with reference to the drawings specific embodiments of the power supply and extraction conductor connection method according to the present invention. 電源装置1は、図1及び図2に示すように、複数個の単電池2が組み合わされてなる組電池3と、組電池3の両端子側にはめ込まれる電池保持枠4とを備えて構成される。 Power supply unit 1, configured to include, as shown in FIGS. 1 and 2, the assembled battery 3 comprising a plurality of unit cells 2 are combined, and a battery holding frame 4 is fitted to both terminal side of the battery pack 3 It is. なお、本実施の形態においては、電源装置1を電気自動車に積載され、車両を駆動するモータの駆動用電源として使用されるものとして説明する。 In this embodiment, the stacked power unit 1 to an electric vehicle will be described as being used as a power source for driving a motor for driving the vehicle.

【0016】単電池2は、図3に示すように、円筒状の外装缶5の一端側に正極端子を兼ねる正極カバー6が取り付けられるとともに、他端側に負極端子を兼ねる負極カップ7が取り付けられている。 [0016] Single cell 2, as shown in FIG. 3, with the positive electrode cover 6 also serving as a positive electrode terminal on one end side of a cylindrical outer can 5 is attached, the negative electrode cup 7 serving also as a negative electrode terminal at the other end is attached It is. 正極カバー6は、円形の平板状部材の中央部が立ち上がって円筒状に形成され、外装缶5の正極側の開口部に組み付けられている。 The positive electrode cover 6 is formed in a cylindrical shape rises central portion of the circular plate member is assembled to the opening of the positive electrode side of the outer can 5.
負極カップ7は、円筒状に形成され、外装缶5の負極側の中央部に取り付けられる。 Negative electrode cap 7 is formed in a cylindrical shape, it is attached to the central portion of the negative electrode side of the outer can 5.

【0017】組電池3は、図2に示すように、複数個の単電池2が正極と負極とが交互に隣接するように配置されている。 The battery pack 3, as shown in FIG. 2, a plurality of unit cells 2 are arranged so that the positive electrode and the negative electrode is adjacent alternately. 組電池3は、図1に示すように、各単電池2 Assembled battery 3, as shown in FIG. 1, each cell 2
の正極カバー6及び負極カップ7が電池保持枠4に形成された孔部8内に位置するように配置され、保持されている。 The positive electrode cover 6 and the negative electrode cup 7 is arranged to be positioned in the hole portion 8 formed in the battery holding frame 4, is retained.

【0018】組電池3は、図1及び図2に示すように、 The battery pack 3, as shown in FIGS. 1 and 2,
各単電池2が電池間用バスバー9によって接続される。 Each cell 2 is connected by a bus bar 9 between cells.
電池間用バスバー9は、中央部が一段高く形成された平板状の部材であり、中央部よりも低く位置する両端側に単電池2の正極カバー6又は負極カップ7が接続されるバスバー円筒部10がそれぞれ形成されている。 Inter-cell bus bar 9 is a flat member having a central portion is formed one step higher, busbar cylindrical portion positive electrode cover 6 or the negative electrode cup 7 of the unit cells 2 are connected to both ends positioned lower than the center portion 10 are formed.

【0019】電池間用バスバー9は、組電池3を構成する複数の単電池2のうち隣接する一方の単電池2の正極カバー6と他方の単電池2の負極カップ7とがバスバー円筒部10にはめ込まれることにより複数個の単電池2 The inter-cell bus bar 9, a plurality of negative electrode cup 7 and the bus bar cylindrical portion 10 of the positive electrode cover 6 of one of the cells 2 adjacent the other of the cells 2 of cells 2 constituting the assembled battery 3 a plurality of unit cells 2 by being fitted into
を直列に接続する。 A connected in series. このように、組電池3は、複数の単電池2が電池間用バスバー9によって直列に接続されて構成される。 Thus, the assembled battery 3 is composed of a plurality of single cells 2 are connected in series by a bus bar 9 between cells. なお、単電池2の正極カバー6又は負極カップ7と電池缶用バスバー9とは、後述するようにバスバー円筒部10内に正極カバー6又は負極カップ7がはめ込まれた後に溶接されて接続される。 Note that the positive electrode cover 6 or the negative electrode cup 7 and the battery can busbar 9 of the cell 2, it is connected by being welded after being fitted cathode cover 6 or the anode cup 7 in the busbar cylindrical portion 10 as described below .

【0020】組電池3は、図1に示すように、直列に接続された単電池2の両端、すなわち終端の単電池2の正極カバー6又は負極カップ7に終端用バスバー11が接続される。 The battery pack 3, as shown in FIG. 1, both ends of the unit cells 2 connected in series, i.e. terminating the bus bar 11 to the positive electrode cover 6 or the negative electrode cup 7 of the single cell 2 of the termination is connected. 終端用バスバー11は、組電池3と図示を省略する外部出力端子に接続されたケーブル12とを接続する。 Terminating the bus bar 11 connects the cable 12 connected to the external output terminal not shown and the battery pack 3. 組電池3は、ケーブル12によってを介して電気自動車の駆動源であるモータと接続される。 Assembled battery 3 is connected motor as a driving source of an electric vehicle via the cable 12.

【0021】ケーブル12は、銅線であり、可撓性に富み絶縁部材により被覆されている。 The cable 12 is a copper wire is covered with an insulating member rich in flexibility. なお、電源装置1 In addition, the power supply device 1
は、上述したようなケーブル12に代えて銅製の棒材等を終端用バスバー11と外部出力端子との接続に使用してもよい。 May be used in place of the cable 12 as described above copper rod or the like for connection to the end bus bar 11 and the external output terminal.

【0022】終端用バスバー11は、図4(a)に示すように、一端側に終端の単電池2の正極カバー6又は負極カップ7に接続されるバスバー円筒部10が形成される。 The terminating bus bar 11, FIG. 4 (a), the bus bar cylindrical portion 10 connected to one end to the positive electrode cover 6 or the negative electrode cup 7 of the single cell 2 of the termination is formed. また、終端用バスバー11は、図4(b)及び(c)に示すように、他端側が波状に折りたたまれた波状部11aと、波状部11aの端部が絞り込まれてなる接続部11bにより形成されている。 Further, terminating the bus bar 11, as shown in FIG. 4 (b) and (c), a corrugated portion 11a to which the other end side is folded into a wave shape, the connecting portion 11b ends of the corrugated portion 11a is narrowed down It is formed. 終端用バスバー1 Terminating the bus bar 1
1は、波状部11aと接続部11aとで形成され他端側がケーブル12と接続されることにより、ケーブル12 1, by the other end side is formed by the corrugated portion 11a and the connecting portion 11a is connected to the cable 12, cable 12
との接続部において大きな表面積が確保できるとともに、波状部11aがフィンとして作用するため、放電時において効率よく放熱し得る。 With a large surface area can be secured at the connecting portion between, for corrugations 11a acts as a fin may efficiently radiated during the discharge.

【0023】電源装置1は、図1に示すように、終端用バスバー11の接続部11bがスリーブ型圧着端子13 The power supply unit 1, as shown in FIG. 1, the connecting portion 11b is sleeve lug 13 of the terminal bus bar 11
の一端側に挿入されるとともに、ケーブル12がスリーブ型圧着端子13の他端側に挿入される。 While being inserted into the one end, the cable 12 is inserted into the other end of the sleeve lug 13. 電源装置1 The power supply device 1
は、スリーブ型圧着端子13の終端用バスバー11の接続部11aとケーブル12とが挿入された部分がそれぞれかしめられることにより、終端用バスバー11とケーブル12とが電気的に接続される。 , By connecting portion 11a and the cable 12 and the inserted portion of the end bus bars 11 of the sleeve lug 13 is crimped, respectively, and the terminal busbar 11 and the cable 12 are electrically connected.

【0024】また、電源装置1は、終端の単電池2と外部出力用のケーブル12とが、図5(a)及び(b)に示すような終端用バスバー20によって接続されるものでもよい。 Further, power supply unit 1, a cable 12 of the unit cells 2 and an external output termination may be intended to be connected by the terminating bus bar 20 as shown in FIG. 5 (a) and (b). 終端用バスバー20は、一端側にバスバー円筒部10が形成されるとともに、他端側の平板状部の一辺に沿ってケーブル12が挿通されるチューブ状部21 Terminating the bus bar 20, tubular portion 21 together with the busbar cylindrical portion 10 is formed at one end, the cable 12 along one side of the flat portion of the other end side is inserted
が形成される。 There is formed. 終端用バスバー20は、ケーブル12が挿通されたチューブ状部21の外側にコネクタ22を嵌合させてチューブ状部21をかしめることにより、ケーブル12を圧着する。 Terminating the bus bar 20, the tubular portion 21 outside the connector 22 is fitted to the tubular portion 21 of the cable 12 is inserted by caulking, crimping the cable 12. 終端用バスバー20は、チューブ状部21が形成されることによりケーブル12との接続部においける表面積が大きくなり、電源装置1の放電時において効率よく放熱し得る。 Terminating the bus bar 20, the surface area Keru placed connection between the cable 12 by the tubular portion 21 is formed becomes large, it can efficiently radiated during the power supply 1 discharge. なお、終端用バスバー2 In addition, the termination for bus bar 2
0においては、ケーブル12を圧着するコネクタ22が少なくとも1個使用されていればよい。 In 0, connector 22 for crimping the cable 12 has only to be used at least one.

【0025】電源装置1は、上述した構成を有する終端用バスバー11、20によって外部出力用のケーブル1 The power supply unit 1, the cable 1 for external output by the terminating bus bars 11 and 20 having the above structure
2が接続されることにより、終端用バスバー11、20 By 2 is connected, it terminated bus bar 11, 20
に形成されたバスバー円筒部10に終端の単電池2の正極カバー6又は負極カップ7が溶接可能とされる。 The positive electrode cover 6 or the negative electrode cup 7 of the cells of the terminal 2 is set to be welded to the bus bar cylindrical portion 10 formed. このため、電源装置1は、終端の単電池と外部出力用のケーブル12との接続がネジ止めによる接続の如く電気自動車に積載した際に生じる振動等により緩むことが無く、 Therefore, the power supply device 1, without being loosened by vibration or the like generated when the connection with the cable 12 for the single cell and the external output termination is loaded in an electric vehicle as connection by screwing,
高い信頼性を得ることができる。 It is possible to obtain high reliability. また、電源装置1は、 In addition, the power supply unit 1,
単電池2側等にネジ穴加工やネジ締め等の工程が不要とされるためコストを削減できるとともに、製造上の負担が減少する。 It is possible to reduce the cost for the process, such as screw hole working or screwing the single cell 2 side or the like is unnecessary, the burden of manufacturing is reduced.

【0026】上述したような構成を有する電源装置1 The power supply device 1 having the above-described structure
は、図1に示すように、組電池3を構成する各単電池2 As shown in FIG. 1, each cell constituting the battery pack 3 2
の正極カバー6或いは負極カップ7に、終端の単電池2 The positive electrode cover 6 or the anode cup 7, the unit cell of the termination 2
については正極カバー6及び負極カップ7に電圧検出線14が接続される。 The voltage detection line 14 is connected to the positive electrode cover 6 and the negative electrode cup 7 for. 電圧検出線14は、銅線がビニール等の絶縁部材によって被覆されたものであり、各単電池2の出力電圧を検出する。 Voltage detecting line 14 is for copper wire is covered with an insulating member such as plastic, for detecting the output voltage of each cell 2. 電源装置1は、電圧検出線1 Power supply unit 1, the voltage detection line 1
4によって検出された各単電池2の出力電圧が図示を省略するコントローラ基板に送られ、各単電池2に異常がないか等が判断される。 4 output voltage has been each cell 2 detected is sent to the controller board not shown by, or whether there is no abnormality in each cell 2 is determined.

【0027】電源装置1は、電池缶用バスバー9によって各単電池2が直列に接続される前に、電圧検出線14 The power supply device 1, before the unit cells 2 are connected in series by the battery can busbar 9, the voltage detection line 14
が正極カバー6又は負極カップ7に溶接されて接続される。 There are connected by welding to the positive electrode cover 6 or the anode cup 7. 以下、電圧検出線14を各単電池2の正極カバー6 Hereinafter, a voltage detection line 14 positive cover 6 of each cell 2
又は負極カップ7に接続する方法について説明する。 Or how to connect to the negative electrode cap 7.

【0028】電圧検出線14は、単電池2に接続される前に、接続端側のビニール被覆が数mm、例えば断面積が0.3mm 2の銅線である電圧検出線14の場合、1 The voltage detection line 14, before being connected to the unit cells 2, when the vinyl cover is a few mm of the connection end, for example, the cross-sectional area of the voltage detection line 14 is a copper wire of 0.3 mm 2, 1
mm乃至2mm程度剥がされて銅線を露出させる。 mm to about 2mm stripped to expose the copper wire.

【0029】電源装置1は、図6に示すように、単電池2の正極側に取り付けられた正極カバー6が円筒状に形成されているため、銅線が露出した電圧検出線14の一端と単電池2の正極カバー6とが正極カバー6の内側と外側から溶接電極15によって挟み込まれる。 The power supply unit 1, as shown in FIG. 6, since the positive electrode cover 6 attached to the positive electrode side of the single cell 2 is formed in a cylindrical shape, one end of the voltage detecting lines 14 copper wire is exposed It is sandwiched by welding electrodes 15 from inside and outside of the positive electrode cover 6 transgressions cathode cover 6 of the cell 2. 溶接電極15は、正極カバー6の内側にクロム銅電極15aが配設され、電圧検出線14側にタングステン電極15bが配設される。 Welding electrodes 15, chromium copper electrode 15a is disposed inside the positive electrode cover 6, the tungsten electrode 15b is disposed to the voltage detection line 14 side. 溶接電極15は、タングステン電極15b Welding electrode 15, tungsten electrode 15b
の発熱を利用して電圧検出線14を正極カバー6に溶接している。 It is welded a voltage detection line 14 to the positive electrode cover 6 by utilizing the heat generation.

【0030】電圧検出線14と単電池2の正極カバー6 The positive electrode cover 6 of the voltage detection line 14 and the unit cells 2
とは、溶接電極15により挟み込まれた後に100N乃至200N(10kgf乃至20kgf)程度の力で図6中矢印A 1方向及び矢印A 2方向に加圧される。 And it is pressurized to 100N to 200 N (10 kgf to 20 kgf) in FIG. 6 in the order of the force arrow A 1 direction and the arrow A 2 direction after sandwiched by welding electrodes 15. このとき、電圧検出線14と溶接電極15との重なりは、少なすぎると銅線が融ける場合があり、多すぎると接合がうまくいかない場合があるため1mm程度が適当である。 At this time, the overlap of the welding electrode 15 and the voltage detection line 14, too little may copper melts, 1 mm about because there is a case where too much and the joint does not work is appropriate.
電圧検出線14と溶接電極15とは、重なりが1mmより長い場合、溶接電極15の容量を上げれば溶接は可能であるが、電圧検出線14を接続する場合、溶接部分に流れる電流値が小さいので、やはり1mm程度が適当である。 The voltage detection line 14 and the welding electrode 15, overlapping if is longer than 1 mm, although it is possible welding Increasing the capacity of the welding electrode 15, when connecting the voltage detection line 14, a small current flowing through the weld because, again about 1mm is appropriate.

【0031】電源装置1においては、電圧検出線14を正極カバー6に直接溶接電極15によって接続した場合、電圧検出線14が動くと溶接された部分の線材が破断するおそれがある。 [0031] In the power supply device 1, there is a possibility that when connected by direct welding electrode 15 a voltage detection line 14 to the positive electrode cover 6, the wires of the welded portion and the voltage detection line 14 moves to rupture. このため、電源装置1は、電圧検出線14の一部に接着剤等の樹脂コーティングが施され、溶接部の線材が動かないように電池保持枠4に固定され、線材の破断が防止される。 Therefore, the power supply device 1, the resin coating such as an adhesive to a portion of the voltage detection line 14 is subjected, is fixed to the battery holding frame 4 so as not to move the wire weld, rupture of the wire is prevented .

【0032】また、電源装置1は、上述したように、電圧検出線14を直接単電池2の正極カバー6に溶接せずに、図7に示すように、棒状圧着端子16を介して正極カバー6に溶接してもよい。 Further, the power supply device 1, as described above, without welding voltage detection line 14 directly to the positive electrode cover 6 of the cell 2, as shown in FIG. 7, the positive electrode cover over the rod-like crimp terminals 16 it may be welded to 6. 棒状圧着端子16は、一端に導線が露出した電圧検出線14が接続されるとともに、他端が正極カバー6に押し当てられ溶接電極15によって溶接される。 The rod-shaped crimping terminal 16, with the voltage detection line 14 that lead is exposed is connected to one end, the other end is welded by a welding electrode 15 is pressed against the positive electrode cover 6.

【0033】電源装置1は、図7に示すように、正極カバー6側に配設されたクロム銅電極15aと棒状圧着端子16側に配設されたタングステン電極15bによって図7中矢印A 1方向及び矢印A 2方向に加圧されて溶接される。 The power supply unit 1, as shown in FIG. 7, FIG. 7 in the arrow A 1 direction by arranged tungsten electrodes 15b to chromium copper electrode 15a and the rod crimping terminal 16 side disposed in the positive electrode cover 6 side and it is welded under pressure in an arrow a 2 direction.

【0034】電圧検出線14は、棒状圧着端子16を介して正極カバー6に溶接されることにより、振動等により線材の破断が防止される。 The voltage detection line 14, by being welded to the positive electrode cover 6 through a rod-like crimp terminals 16, breaking of the wire is prevented by the vibration or the like. なお、電圧検出線14は、 Note that the voltage detection line 14,
絶縁部材によって被覆されている部分が棒状圧着端子1 Rod-like crimp terminal 1 portion covered by an insulating member
6のかしめ部16aにおいてかしめられて取り付けられているため、振動等による棒状圧着端子16との取付部分における線材の破断も防止される。 Because it is crimped to the mounting or the caulking portion 16a of 6, it is also prevented breakage of the wire in the mounting portion of the rod-like crimp terminal 16 due to vibration or the like.

【0035】以上、電圧検出線14を単電池2に取り付けられた正極カバー6に溶接する方法について説明したが、正極カバー6と同様に円筒形に形成された負極カップ7も正極カバー6と同じように溶接電極15によって溶接が可能であることは勿論である。 [0035] While there has been described a method of welding voltage detection line 14 to the positive electrode cover 6 attached to the unit cells 2, a negative electrode cup 7 formed similarly cylindrical positive electrode cover 6 is also the same as the positive electrode cover 6 it the welding electrode 15 are possible welding so as a matter of course.

【0036】なお、電源装置1は、電圧検出線14の代わりに予め線材が配線されたフレキシブルプリント基板(図示は省略)を使用することにより、線材の引き回し作業が大幅に簡易化されるとともに、線材と単電池2との溶接部の位置決めが予め基板によってなされるため溶接の自動化が容易に達成できる。 [0036] The power supply device 1, by using a flexible printed circuit board in advance wires are wired in place of the voltage detecting lines 14 (illustration is omitted), the routing work of the wire is greatly simplified, positioning of the welded portion between the wire and the unit cells 2 automation of welding can be easily achieved because it is made in advance by the substrate.

【0037】電源装置1は、上述したように、電圧検出線14と単電池2とを溶接によって接続するため、従来行われていたネジ止めによる接続に比して電気自動車に積載した場合の振動等によって生じるよりネジの緩みがないため、接続の信頼性が向上するとともに、電圧検出線14の接続端側の端末処理にかかる端子代や加工代等のコストの削減や作業時の負担を減少させることができる。 The power supply device 1, as described above, for connecting by welding the voltage detection line 14 and the unit cells 2, the vibration in the case of stacked electric vehicle than the connection by screwing was done conventionally because there is no loosening of the screw from the due like, the reliability of connection is improved, reducing the costs and burden of work terminal cost and processing cost or the like according to the terminal processing connection end side of the voltage detecting lines 14 it can be.

【0038】また、電圧検出線14は、単電池2との接続が電池間用バスバー9によって複数の単電池2が直列に接続される前に行われる。 Further, the voltage detection line 14, connection between the unit cells 2 is performed before the unit cells 2 more by bus bar 9 between batteries are connected in series. このため、電源装置1においては、電圧検出線14溶接時に単電池2の1本分の電位がかかるだけであり、作業者の感電の危険が減少し、 Therefore, in the power supply device 1, only the potential of the one roll of the unit cells 2 when the voltage detection line 14 welded such, reduces the risk of electric shock of the operator,
作業面における安全性が向上する。 Safety is improved in the work surface.

【0039】なお、電源装置1においては、終端用バスバー11、20と単電池2の正極カバー6及び負極カップ7とが円筒形に形成されているため、終端用バスバー11、20と各単電池2電極とが電圧検出線と同様の方法によって溶接することが可能である。 [0039] In the power supply device 1, since the termination bus bar 11, 20 and the positive electrode cover 6 and the negative electrode cup 7 of the unit cells 2 is formed into a cylindrical shape, each cell terminates bus bar 11, 20 and 2 electrode can be welded by the same method as the voltage detection line.

【0040】 [0040]

【発明の効果】以上詳細に説明したように、本発明に係る電源装置によれば、表面積の大きな終端用バスバーと終端の単電池とが溶接されて接続されているため、大電流が流れる場合であっても効率よく放熱を行うことができる。 As described in more detail, according to the present invention, according to the power supply device according to the present invention, since the a single cell large end busbar and end of the surface area are connected by welding, when a large current flows can be carried out efficiently radiated even. また、本発明に係る電源装置によれば、終端用バスバーと外部出力用のケーブルとの接続信頼性が高いため、電源装置全体としても高い接続信頼性を得ることができる。 Further, according to the power supply device according to the present invention, has high connection reliability between the termination bus bar and cable for external output, it is possible to obtain a high connection reliability as a whole power system.

【0041】本発明に係る引き出し導線の接続方法によれば、単電池の正極カバー又は負極カップに直接又は棒状の圧着端子を介して電圧検出線等の引き出し導線が溶接されるため、従来のネジ止めによる接続のように電気自動車等に積載した際に生じる振動等によりネジが緩む心配が無く長期的に安定した高い接続信頼性を得ることができる。 According to the connecting method of the lead-out wires according to the invention, since the pull-out conductors of the voltage detecting lines and the like are welded through the crimp terminals directly or rod in the positive electrode cover or anode cup of the cell, a conventional screw it can be concerned about the screw from loosening due to vibration or the like generated when the loaded on an electric vehicle or the like as a connection by stopping get no long-term stable and high connection reliability. また、本発明に係る引き出し導線の接続方法によれば、電池間用バスバーによって単電池が直列に接続される以前に引き出し導線の接続を行うため、作業者が感電する危険性が低く、作業面における安全性を向上させることができる。 Further, according to the method of connecting the lead-out wire of the present invention, for connection of the previously drawer conductor unit cells are connected in series by a bus bar for inter cell, low risk of operator an electric shock, the work surface it is possible to improve the safety in.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】電源装置の平面図である。 1 is a plan view of a power supply.

【図2】電源装置の側面図である。 It is a side view of FIG. 2 power supply.

【図3】単電池の一部切欠き縦断面図である。 FIG. 3 is a vertical cross-sectional view-out part cut-out of single cells.

【図4】(a)は、終端用バスバーの平面図であり、 4 (a) is a plan view of a termination bus bar,
(b)は、終端用バスバーのA−A断面図であり、 (B) is an A-A sectional view of the termination bus bar,
(c)は、終端用バスバーのB−B断面図である。 (C) is a B-B sectional view of the termination bus bar.

【図5】(a)は、他の実施の形態にかかる終端用バスバーの平面図であり、(b)は、他の実施の形態にかかる終端用バスバーの断面図である。 5 (a) is a plan view of the terminal bus bar according to another embodiment, (b) are a cross-sectional view of the termination bus bar according to another embodiment.

【図6】電圧検出線と単電池の正極カバーとの接続方法を説明するための図である。 6 is a diagram for explaining a method of connecting the positive electrode cover of the voltage detection line and the unit cell.

【図7】電圧検出線が取り付けられた圧着端子と単電池の正極カバーとの接続方法を説明するための図である。 7 is a diagram for explaining a method of connecting the positive electrode cover of the crimp terminal and the single cell voltage detection line is attached.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 電源装置,2 単電池,3 組電池,4 電池保持枠,6 正極カバー,7 負極カップ,9 電池間用バスバー,10 バスバー円筒部,11、20終端用バスバー,12 ケーブル,13 スリーブ型圧着端子,1 1 power supply, second cell, 3 assembled battery, batteries holding frame 6 positive cover, 7 negative electrode cap, for between 9 cell busbar, 10 busbar cylindrical section, 11, 20 terminating busbar, 12 cable, 13 sleeve crimp terminal, 1
4 電圧検出線,15 溶接電極,16 棒状圧着端子,21 チューブ状部,22 コネクタ 4 voltage detection lines, 15 welding electrodes, 16 bar-like crimp terminal, 21 the tubular part 22 Connector

Claims (7)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 正極側及び/又は負極側に円筒状電極端子が取り付けられた複数の単電池が組み合わされて構成される組電池と、 上記組電池を構成する単電池を直列に接続する電池間用接続導体と、 上記組電池の終端の単電池と外部出力端子に接続されたケーブルとを接続する終端用接続導体とを備えて構成され、 上記終端用接続導体は、一端側に上記単電池の正極側及び/又は負極側に取り付けられた円筒状電極端子に接続される円筒部が形成されるとともに、他端側は、平板状部が波状に折りたたまれかつ絞り込まれて上記ケーブルと接続されていることを特徴とする電源装置。 1. A battery for connecting the constructed battery pack positive electrode side and / or a cylindrical electrode terminal are combined a plurality of cells attached to the negative electrode side, the unit cells constituting the battery pack in series and between connection conductor, it is configured to include a termination connection conductor for connecting the battery pack cable connected to the unit cell and the external output terminal of the termination, the terminating connection conductors, the single one end together with the cylindrical portion connected to the positive electrode side and / or the cylindrical electrode terminal attached to the negative electrode side of the battery is formed, the other end is connected to the cable flat portion is folded in a corrugated shape and narrowed by power supply, characterized in that it is.
  2. 【請求項2】 上記終端用接続導体は、絞り込まれた他端側と上記外部出力端子に接続されたケーブルとがスリーブ型の圧着端子にそれぞれ通されかしめられることにより上記ケーブルと接続されていることを特徴とする請求項1に記載の電源装置。 Wherein said termination connection conductor is connected to the cable by a narrowed end side and the connected to the external output terminal cable is swaged passed respective crimp terminal sleeve type the power supply device according to claim 1, characterized in that.
  3. 【請求項3】 正極側及び/又は負極側に円筒状電極端子が取り付けられた複数の単電池が組み合わされて構成される組電池と、 上記組電池を構成する単電池を直列に接続する電池間用接続導体と、 上記組電池の終端の単電池と外部出力端子に接続されたケーブルとを接続する終端用接続導体とを備えて構成され、 上記終端用接続導体は、一端側に上記単電池の正極側及び/又は負極側に取り付けられた円筒状電極端子に接続される円筒部が形成されるとともに、他端側に平板状部が形成され、この平板状部の一辺に沿って上記ケーブルが挿入されるチューブ状部が形成されていることを特徴とする電源装置。 3. A battery which connects the constructed battery pack positive electrode side and / or a cylindrical electrode terminal are combined a plurality of cells attached to the negative electrode side, the unit cells constituting the battery pack in series and between connection conductor, it is configured to include a termination connection conductor for connecting the battery pack cable connected to the unit cell and the external output terminal of the termination, the terminating connection conductors, the single one end together with the cylindrical portion connected to the cylindrical electrode terminal attached to the positive electrode side and / or the negative electrode side of the battery is formed, the flat plate-like portion is formed at the other end, the along one side of the flat plate-like portion power supply, characterized in that the tubular part which the cable is inserted.
  4. 【請求項4】 上記終端用接続導体は、上記チューブ状部の外側から少なくとも1個の圧着部材でかしめられることにより上記ケーブルと接続されていることを特徴とする請求項3に記載の電源装置。 Wherein said terminating connection conductors, power supply device according to claim 3, characterized in that it is connected to the cable by caulking at least one crimping member from the outside of the tubular portion .
  5. 【請求項5】 正極側及び/又は負極側に円筒状電極端子が取り付けられた単電池又はこの単電池が複数組み合わされた組電池を備えてなる電源装置に引き出し導線を接続する方法において、 上記単電池の正極側及び/又は負極側に取り付けられた円筒状電極端子と引き出し導線とを溶接電極によって上記円筒状電極端子の内側と外側から挟み込んで加圧することにより上記単電池の円筒状電極端子に引き出し導線を接続することを特徴とする引き出し導線の接続方法。 5. A method for single cell or a single cell cylindrical electrode terminal is attached to the positive electrode side and / or the negative electrode side connects the drawer wires to a power source device including a plurality of combined assembled battery, the cylindrical electrode terminals of the unit cells by the positive electrode side and / or the negative electrode cylinder attached to the side electrode terminal and the lead wire and the welding electrodes of the unit cells pressurized by sandwiching from inside and outside of the cylindrical electrode terminal connection of the drawer conductors, characterized in that to connect the drawer conductive wire.
  6. 【請求項6】 正極側及び/又は負極側に円筒状電極端子が取り付けられた単電池又はこの単電池が複数組み合わされた組電池を備えてなる電源装置に引き出し導線を接続する方法において、 上記単電池の正極側及び/又は負極側に取り付けられた円筒状電極端子と一端側に引き出し導線が接続された棒状の圧着端子の他端側とを溶接電極によって上記円筒状電極端子の内側と外側から挟み込んで加圧することにより上記単電池の円筒状電極端子に引き出し導線を接続することを特徴とする引き出し導線の接続方法。 6. A method of single cell or a single cell cylindrical electrode terminal is attached to the positive electrode side and / or the negative electrode side connects the drawer wires to a power source device including a plurality of combined assembled battery, the inside and outside of the positive electrode side and / or the other end side and the cylindrical electrode terminals by welding electrodes of the crimp terminal bar-like cylindrical electrode terminals and lead wires on one end that is mounted is connected to the negative electrode side of the cell connection of the drawer conductors, characterized by pinched by connecting the lead wires to a cylindrical electrode terminals of the unit cells by pressurizing from.
  7. 【請求項7】 上記引き出し導線は、上記組電池を構成する各単電池の電圧をい検出する電圧検出線であることを特徴とする請求項5又は請求項6に記載の引き出し導線の接続方法。 7. The drawer conductor connection method of the extraction conductor according to claim 5 or claim 6, characterized in that the voltage detection line for detecting have a voltage of each cell constituting the battery pack .
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