JP6243624B2 - Bus bar module and power supply - Google Patents

Bus bar module and power supply Download PDF

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Publication number
JP6243624B2
JP6243624B2 JP2013097538A JP2013097538A JP6243624B2 JP 6243624 B2 JP6243624 B2 JP 6243624B2 JP 2013097538 A JP2013097538 A JP 2013097538A JP 2013097538 A JP2013097538 A JP 2013097538A JP 6243624 B2 JP6243624 B2 JP 6243624B2
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bus bar
bottom wall
terminal
batteries
pressing
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JP2014220069A (en
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茂之 小笠原
茂之 小笠原
真一 柳原
真一 柳原
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Yazaki Corp
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Yazaki Corp
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Priority to PCT/JP2014/062275 priority patent/WO2014181807A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • 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
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • 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

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

Description

本発明は、バスバモジュール及び電源装置に係り、特に、複数の電池を直列に接続するためのバスバモジュールと、当該バスバモジュールを有する電源装置に関する。   The present invention relates to a bus bar module and a power supply device, and more particularly to a bus bar module for connecting a plurality of batteries in series and a power supply device having the bus bar module.

例えば、電動モータを用いて走行する電気自動車や、エンジンと電動モータとを併用して走行するハイブリット自動車などには、前記電動モータの駆動源として上記電源装置が搭載されている。この電源装置には、特許文献１に記載されたような電池配線モジュールが用いられている。   For example, an electric vehicle that travels using an electric motor, a hybrid vehicle that travels using both an engine and an electric motor, and the like are equipped with the power supply device as a drive source of the electric motor. A battery wiring module as described in Patent Document 1 is used for this power supply device.

図５に示す電池配線モジュール１１０は、一端に正の電極１０１、他端に負の電極１０２を有する単電池１００を交互に逆向きに重ね合わせて形成した単電池群１００Ａに取り付けられて、重ね合わせた単電池１００同士を直列に接続するものである。   The battery wiring module 110 shown in FIG. 5 is attached to a unit cell group 100A formed by alternately stacking unit cells 100 having a positive electrode 101 at one end and a negative electrode 102 at the other end in the opposite direction. The combined unit cells 100 are connected in series.

電池配線モジュール１１０は、左右に隣り合う単電池１００の電極端子１０１、１０２間を接続する複数の接続部材１０３と、各接続部材１０３に重ねられ電線Ｗ１の端末部に接続されて単電池１００の電圧を検知する複数の電圧検知端子１０４と、接続部材１０３、電圧検知端子１０４を収容する合成樹脂製の樹脂プロテクタ１０５とを備えて構成されている。   The battery wiring module 110 includes a plurality of connection members 103 that connect between the electrode terminals 101 and 102 of the unit cells 100 adjacent to the left and right, and the connection members 103 that are overlapped with each other and connected to a terminal portion of the electric wire W1. A plurality of voltage detection terminals 104 that detect voltage, a connection member 103, and a synthetic resin resin protector 105 that accommodates the voltage detection terminals 104 are configured.

樹脂プロテクタ１０５は、各接続部材１０３を保持する複数の保持部１５０と、電圧検知端子１０４に接続される電線Ｗ１が通される電線通し部１５１とを有している。   The resin protector 105 includes a plurality of holding portions 150 that hold the connection members 103 and a wire passage portion 151 through which the electric wire W1 connected to the voltage detection terminal 104 is passed.

保持部１５０は、その周壁の内面に、接続部材１０３の離脱を規制する撓み変形自在な係止片１５２を有している。接続部材１０３が係止片１５２の内方側に突出する部分の下側に配されることで接続部材１０３の離脱が規制される。   The holding part 150 has a freely deformable locking piece 152 that restricts the detachment of the connection member 103 on the inner surface of the peripheral wall. By disposing the connecting member 103 below the portion protruding inward of the locking piece 152, the detachment of the connecting member 103 is restricted.

さらに保持部１５０は、各電圧検知端子１０４の角部を挿通させる通し孔１５０Ａと、電圧検知端子１０４が載置される高さ位置（接続部材１０３の上面の位置）に設けられ、各電圧検知端子１０４を位置決め（回り止め）するための凹部１５０Ｂと、を有している。各電圧検知端子１０４の角部を通し孔１５０Ａに通しつつ凹部１５０Ｂに嵌め込むことにより、各電圧検知端子１０４は、保持部１５０に装着される。   Further, the holding unit 150 is provided at a through hole 150A through which a corner of each voltage detection terminal 104 is inserted, and at a height position (a position on the upper surface of the connection member 103) on which the voltage detection terminal 104 is placed. And a recess 150B for positioning (stopping rotation) the terminal 104. Each voltage detection terminal 104 is attached to the holding unit 150 by fitting the corner of each voltage detection terminal 104 into the recess 150B while passing through the through hole 150A.

電線通し部１５１には、電線Ｗ１を電線通し部１５１内に保持するための一対の爪部１５１Ａが電線Ｗ１の上部において対向して設けられている。   The electric wire passage 151 is provided with a pair of claw portions 151A for holding the electric wire W1 in the electric wire passage 151 so as to face each other at the upper part of the electric wire W1.

特開２０１３−３７９８７号公報JP 2013-37987 A

しかしながら、上述した従来の電池配線モジュール１１０にあっては、保持部１５０に、係止片１５２、通し孔１５０Ａ、凹部１５０Ｂなどの、接続部材１０３や電圧検知端子１０４などの金属部品を保持部１５０に保持させるための構造を設けていたため、樹脂プロテクタ１０５を成型するための金型が複雑になる問題があった。さらに、接続部材１０３や電圧検知端子１０４などの金属部品を樹脂プロテクタ１０５に組み付ける際に、例えば、係止片１５２が削れたり、破損したりすることで、金属部品の樹脂プロテクタ１０５への組み付けが不十分となり、電池配線モジュール１１０を単電池群１００Ａに組み付ける際、或いは、単電池群１００Ａに組み付けた電池配線モジュール１１０を輸送する際の、部品の脱落の原因になる虞があった。   However, in the conventional battery wiring module 110 described above, the holding part 150 is provided with metal parts such as the connection member 103 and the voltage detection terminal 104 such as the locking piece 152, the through hole 150A, and the recess 150B. Therefore, there is a problem that a mold for molding the resin protector 105 becomes complicated. Furthermore, when assembling metal parts such as the connection member 103 and the voltage detection terminal 104 to the resin protector 105, for example, the locking piece 152 is scraped or damaged, so that the metal part can be assembled to the resin protector 105. When the battery wiring module 110 is assembled to the unit cell group 100A or when the battery wiring module 110 assembled to the unit cell group 100A is transported, there is a risk of parts falling off.

本発明は、バスバを樹脂ケースに保持させるためのロックの数を低減させることで、樹脂ケースの構造の簡素化を図ったバスバモジュール及び電源装置を提供することを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to provide a bus bar module and a power supply device in which the structure of the resin case is simplified by reducing the number of locks for holding the bus bar in the resin case.

請求項１記載の本発明は、各電極が直線上に並ぶように配列された複数の電池のうち隣接する電池の電極同士を接続することでこれら複数の電池を直列に接続する複数のバスバと、前記複数のバスバを収容するケースと、を備えたバスバモジュールであって、前記ケースには、前記各バスバを収容する複数の収容部と、該各収容部に連結される複数の連結部と、が設けられ、前記各収容部は、前記バスバを載置させる底壁と、該底壁から立設して前記バスバを取り囲む周壁と、を備え、前記連結部には、前記底壁に向かって突出して形成されて、前記底壁に載置された前記バスバを押し付ける押さえ部が設けられ、前記押さえ部は、前記各収容部に対して１つのみ設けられ、前記押さえ部と前記底壁との間に前記バスバが挟まれて前記収容部に保持されることを特徴とするバスバモジュールである。 The present invention described in claim 1 includes a plurality of bus bars for connecting a plurality of batteries in series by connecting electrodes of adjacent batteries among a plurality of batteries arranged so that each electrode is arranged in a straight line. A bus bar module including a plurality of bus bars, wherein the case includes a plurality of storage portions for storing the bus bars, and a plurality of connection portions connected to the storage portions. Each of the accommodating portions includes a bottom wall on which the bus bar is placed, and a peripheral wall that stands up from the bottom wall and surrounds the bus bar, and the connecting portion faces the bottom wall. And a pressing part that presses the bus bar placed on the bottom wall is provided, and only one pressing part is provided for each housing part, and the pressing part and the bottom wall are provided. The bus bar is sandwiched between A busbar module, characterized in that it is held.

請求項２記載の本発明は、各電極が直線上に並ぶように配列された複数の電池のうち隣接する電池の電極同士を接続することでこれら複数の電池を直列に接続する複数のバスバと、前記複数のバスバを収容するケースと、を備えたバスバモジュールであって、前記ケースには、前記各バスバを収容する複数の収容部と、該各収容部に連結される複数の連結部と、が設けられ、前記各収容部は、前記バスバを載置させる底壁と、該底壁から立設して前記バスバを取り囲む周壁と、を備え、前記連結部には、前記底壁に向かって突出して形成されて、前記底壁に載置された前記バスバを押し付ける押さえ部が設けられ、前記押さえ部と前記底壁との間に前記バスバが挟まれて前記収容部に保持され、前記各バスバに接続されるとともに、前記収容部に収容される端子をさらに備え、前記押さえ部には、前記端子が前記収容部に収容された状態で、前記端子の外縁に当接する位置、及び／又は、前記端子に接続された電線に当接する位置に当接部が設けられていることを特徴とするバスバモジュールである。
請求項３記載の本発明は、請求項２記載の本発明において、前記端子が、板状の端子本体と、該端子本体の周縁の一部から延出された電線接続部と、を備え、前記当接部が、前記電線接続部に当接する位置にあることを特徴とする。 The present invention according to claim 2 includes a plurality of bus bars for connecting a plurality of batteries in series by connecting electrodes of adjacent batteries among a plurality of batteries arranged so that each electrode is arranged in a straight line. A bus bar module including a plurality of bus bars, wherein the case includes a plurality of storage portions for storing the bus bars, and a plurality of connection portions connected to the storage portions. Each of the accommodating portions includes a bottom wall on which the bus bar is placed, and a peripheral wall that stands up from the bottom wall and surrounds the bus bar, and the connecting portion faces the bottom wall. A pressing part that presses the bus bar placed on the bottom wall is provided, the bus bar is sandwiched between the pressing part and the bottom wall, and held in the accommodating part, Connected to each bus bar and accommodated The holding portion further includes a terminal that is in contact with an outer edge of the terminal and / or an electric wire connected to the terminal in a state where the terminal is received in the receiving portion. The bus bar module is characterized in that a contact portion is provided at a contact position.
According to a third aspect of the present invention, in the second aspect of the present invention, the terminal includes a plate-shaped terminal main body, and an electric wire connecting portion extending from a part of the periphery of the terminal main body. The contact portion is in a position where it comes into contact with the wire connection portion.

請求項４記載の本発明は、請求項２または請求項３記載の本発明において、前記端子は、前記バスバに重ねて接続され、前記押さえ部が、前記底壁と対向する面に段差を有し、前記押さえ部が、前記端子を前記底壁に押し付けることを特徴とする。 According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the terminal is connected to the bus bar so as to overlap, and the pressing portion has a step on a surface facing the bottom wall. The pressing portion presses the terminal against the bottom wall.

請求項５記載の本発明は、請求項２乃至請求項請求項４のうち何れか一項に記載の本発明において、前記複数の収容部に並設されて、前記端子に接続される電線を前記配列方向に沿って配索させる配索部をさらに備え、前記連結部には、前記配索部の開口を覆うカバーが設けられていることを特徴とする。 The present invention is claimed in claim 5, wherein, in the present invention as set forth in any one of claims 2 to claim 4, being arranged in parallel in the plurality of accommodating portions, the wire to be connected to the terminal The wiring unit further includes a routing unit that is routed along the arrangement direction, and the connection unit is provided with a cover that covers an opening of the routing unit.

請求項６記載の本発明は、正極及び負極が交互に逆向きに重ね合わされた複数の電池から構成された電池集合体と、請求項１乃至請求項５のうちいずれか一項に記載されたバスバモジュールと、を備えたことを特徴とする電源装置である。 The present invention described in claim 6 is described in any one of claims 1 to 5 , and a battery assembly including a plurality of batteries in which positive and negative electrodes are alternately stacked in opposite directions. And a bus bar module.

請求項１、６記載の本発明によれば、ケースには、各バスバを収容する複数の収容部と、該各収容部に連結される複数の連結部と、が設けられ、各収容部は、バスバを載置させる底壁と、該底壁から立設してバスバを取り囲む周壁と、を備え、連結部には、底壁に向かって突出して形成されて、底壁に載置されたバスバを押し付ける押さえ部が設けられ、押さえ部と底壁との間にバスバが挟まれて収容部に保持されるから、従来技術のように、保持部に接続部材などの金属部品を保持させるための構造を設ける必要がなくなる、或いは、前記保持させるための構造の数を減らすことができ、よって、ケースの構造が単純になり、これに伴って、ケースを成型するための金型の構造を単純にすることができる。また、接続部材（バスバ）を保持部（収容部）に係止させるための係止片が削れたり、破損することが抑制されるとともに、仮に、係止片が削れたり、破損することがあったとしても、押さえ部により、バスバが収容部に保持されているから、ケースからの部品の脱落を抑制することができる。 According to the first and sixth aspects of the present invention, the case is provided with a plurality of accommodating portions that accommodate the respective bus bars, and a plurality of connecting portions that are coupled to the accommodating portions. A bottom wall on which the bus bar is placed, and a peripheral wall that stands up from the bottom wall and surrounds the bus bar. The connecting portion is formed to protrude toward the bottom wall and is placed on the bottom wall. A holding part that presses the bus bar is provided, and the bus bar is sandwiched between the holding part and the bottom wall and is held in the receiving part, so that the holding part holds metal parts such as a connecting member as in the prior art. Or the number of structures to be held can be reduced. Therefore, the structure of the case is simplified, and accordingly, the structure of the mold for molding the case is reduced. Can be simple. In addition, the locking piece for locking the connecting member (bus bar) to the holding portion (accommodating portion) is prevented from being scraped or damaged, and the locking piece may be scraped or damaged. Even so, since the bus bar is held by the holding portion by the holding portion, it is possible to suppress the component from falling off the case.

請求項２記載の発明によれば、各バスバに接続される端子をさらに備え、押さえ部には、端子の外縁に当接する位置、及び／又は、端子に接続された電線に当接する位置に当接部が設けられているから、例えば、端子を回転させる外力が作用した際においても、端子の外縁に当接部が当接されて、端子の回転を抑止することができる。また、例えば、端子を回転させる外力が作用した際においても、端子に接続された電線に当接部を当接させることで、電線の移動を抑止することができる。   According to the second aspect of the present invention, the terminal further includes a terminal connected to each bus bar, and the holding portion corresponds to a position that contacts the outer edge of the terminal and / or a position that contacts the electric wire connected to the terminal. Since the contact portion is provided, for example, even when an external force for rotating the terminal is applied, the contact portion is brought into contact with the outer edge of the terminal, so that the rotation of the terminal can be suppressed. Further, for example, even when an external force that rotates the terminal is applied, the movement of the electric wire can be suppressed by bringing the contact portion into contact with the electric wire connected to the terminal.

請求項４記載の発明によれば、押さえ部が、底壁と対向する面に段差を有し、押さえ部が、端子を底壁に押し付けるから、前記保持部に部品を保持させるための構造の数を、より一層、減らすことができ、よって、より一層、ケースの構造が単純になり、これに伴って、より一層、ケースを成型するための金型の構造を単純にすることができる。また、押さえ部により、バスバ及び端子が収容部に保持されるからケースからの部品の脱落を、より一層確実に抑制することができる。 According to the invention of claim 4 , since the pressing portion has a step on the surface facing the bottom wall, and the pressing portion presses the terminal against the bottom wall, the holding portion has a structure for holding the component. The number can be further reduced, and thus the structure of the case can be further simplified. Accordingly, the structure of the mold for molding the case can be further simplified. Moreover, since the bus bar and the terminal are held in the housing portion by the holding portion, it is possible to further reliably suppress the component from falling off the case.

請求項５記載の発明によれば、複数の収容部に並設されて、端子に接続される電線を配列方向に沿って配索させる配索部をさらに備え、連結部には、配索部の開口を覆うカバーが設けられている。即ち、カバーによって、配索部に収容された電線が保持されるから、従来技術のように、電線を電線通し部内に収容する際に、一対の爪部間に電線を押し込んで、爪部を一旦撓ませる手間を省略でき、電線を配索部内に収容する際の作業性の向上を図ることができる。 According to invention of Claim 5, it is further provided with the routing part arranged in parallel in the some accommodating part, and it routes the electric wire connected to a terminal along an arrangement direction, and a connecting part has a routing part. A cover is provided to cover the opening. That is, since the electric wire accommodated in the routing portion is held by the cover, when the electric wire is accommodated in the electric wire passage portion as in the prior art, the electric wire is pushed between the pair of claws and the nail portion is The trouble of once bending can be omitted, and the workability when the electric wire is accommodated in the wiring portion can be improved.

本発明の一実施の形態にかかる電源装置の分解斜視図である。It is a disassembled perspective view of the power supply device concerning one embodiment of this invention. 前記電源装置を構成するバスバモジュールを示す平面図である。It is a top view which shows the bus bar module which comprises the said power supply device. 図２中のＩ−Ｉ線に沿う断面斜視図である。It is a cross-sectional perspective view which follows the II line | wire in FIG. 前記バスバモジュールの組み立て作業する様子を示す斜視図であり、（Ａ）は、カバーが配索部の開口を露出する開位置にある状態を示す図であり、（Ｂ）は、カバーが配索部の開口を閉じる閉位置にある状態を示す図である。It is a perspective view which shows a mode that the assembly work of the said bus bar module is shown, (A) is a figure which shows the state which exists in the open position which exposes the opening of a routing part, (B) is a cover being routed It is a figure which shows the state which exists in the closed position which closes opening of a part. 従来のバスバモジュールを示す平面図である。It is a top view which shows the conventional bus bar module.

以下、本発明の一実施の形態にかかるバスバモジュール及び電源装置を図１乃至図４を参照して説明する。   A bus bar module and a power supply device according to an embodiment of the present invention will be described below with reference to FIGS.

図１に示すように、バスバモジュール１は、同図に示す電池集合体２の上面に取り付けられて電源装置１０を構成するものである。この電源装置１０は、電動モータを用いて走行する電気自動車や、エンジンと電動モータとを併用して走行するハイブリッド自動車などに搭載され、前記電動モータに電力を供給するものである。   As shown in FIG. 1, the bus bar module 1 is attached to the upper surface of the battery assembly 2 shown in FIG. The power supply device 10 is mounted on an electric vehicle that travels using an electric motor, a hybrid vehicle that travels using both an engine and an electric motor, and supplies power to the electric motor.

電池集合体２は、図１に示すように、複数の電池２０と、これら複数の電池２０を互いに重ねて固定する固定部材（図示しない）と、を有している。また、各電池２０は、箱型の筐体内に電解液が充填された電池本体２１と、この電池本体２１の一方の側面及び、他方の側面からそれぞれ突出した正極２２（「電極」の一例）及び負極２３（「電極」の一例）と、を有している。これら正極２２及び負極２３は、それぞれ、導電性の金属により円柱状に形成されており、その外周面には、ナット２Ａと螺合するネジ溝が形成されている。   As shown in FIG. 1, the battery assembly 2 includes a plurality of batteries 20 and a fixing member (not shown) that fixes the plurality of batteries 20 so as to overlap each other. Each battery 20 includes a battery main body 21 filled with an electrolyte in a box-shaped housing, and a positive electrode 22 (an example of an “electrode”) protruding from one side surface and the other side surface of the battery main body 21. And a negative electrode 23 (an example of an “electrode”). Each of the positive electrode 22 and the negative electrode 23 is formed in a cylindrical shape from a conductive metal, and a thread groove that is screwed into the nut 2 </ b> A is formed on the outer peripheral surface thereof.

さらに、複数の電池２０には、これら電池２０の重なり方向に沿って正極２２及び負極２３が直線上に交互に並ぶように二列に配列されている。ここで、図１中の矢印Ｙは、複数の電池２０の配列方向、及びバスバモジュール１の長手方向を示し、矢印Ｘは、バスバモジュール１の幅方向を示し、矢印Ｚは、バスバモジュール１の高さ方向を示している。また、本明細書では、バスバモジュール１の高さ方向を、上下方向と記す場合がある。   Furthermore, the plurality of batteries 20 are arranged in two rows so that the positive electrodes 22 and the negative electrodes 23 are alternately arranged in a straight line along the overlapping direction of the batteries 20. Here, the arrow Y in FIG. 1 indicates the arrangement direction of the plurality of batteries 20 and the longitudinal direction of the bus bar module 1, the arrow X indicates the width direction of the bus bar module 1, and the arrow Z indicates the bus bar module 1. The height direction is shown. Moreover, in this specification, the height direction of the bus bar module 1 may be described as a vertical direction.

バスバモジュール１は、前述した複数の電池２０を直列接続するものであり、図１に示すように、互いに隣り合う電池２０の正極２２と負極２３とを接続することで複数の電池２０を直列に接続する複数のバスバ３と、各バスバ３に電気的に接続されて各電池２０の電圧を検出する複数の電圧検出用端子４（「端子」の一例）と、各電圧検出用端子４に接続される複数の電圧検出線５（「電線」の一例）と、これら複数のバスバ３、複数の電圧検出用端子４、及び複数の電圧検出線５を収容するケース６と、を有している。バスバモジュール１は、複数の電池２０のうち両端に位置するとともに互いに異なる極性の電極に前記電動モータが接続されて、当該電動モータに電力を供給する。   The bus bar module 1 is configured to connect the plurality of batteries 20 described above in series. As illustrated in FIG. 1, the plurality of batteries 20 are connected in series by connecting a positive electrode 22 and a negative electrode 23 of the adjacent batteries 20. A plurality of bus bars 3 to be connected, a plurality of voltage detection terminals 4 (an example of “terminals”) that are electrically connected to each bus bar 3 and detect the voltage of each battery 20, and connected to each voltage detection terminal 4 A plurality of voltage detection lines 5 (an example of “electric wires”), a plurality of bus bars 3, a plurality of voltage detection terminals 4, and a case 6 that accommodates the plurality of voltage detection lines 5. . The bus bar module 1 is located at both ends of the plurality of batteries 20 and the electric motor is connected to electrodes of different polarities to supply electric power to the electric motor.

複数のバスバ３は、それぞれ、金属板にプレス加工等が施されて得られるものであり、図２に示すように、長方形板状の金属板に、互いに隣り合う電極の正極２２及び負極２３を挿入する一対の貫通孔３ａが形成された構成である。このバスバ３は、一対の貫通孔３ａに挿入した正極２２及び負極２３にナット２Ａが螺合されることで、これら正極２２及び負極２３に固定されるとともに電気的に接続される。   Each of the plurality of bus bars 3 is obtained by pressing a metal plate or the like. As shown in FIG. 2, a positive electrode 22 and a negative electrode 23 of electrodes adjacent to each other are formed on a rectangular metal plate. A pair of through-holes 3a to be inserted is formed. The bus bar 3 is fixed and electrically connected to the positive electrode 22 and the negative electrode 23 by screwing the nut 2A into the positive electrode 22 and the negative electrode 23 inserted into the pair of through holes 3a.

複数の電圧検出用端子４は、それぞれ、金属板にプレス加工等が施されて得られるものであり、図２に示すように、矩形板状の端子本体４１と、この端子本体４１に連続して形成されて端子本体４１と電圧検出線５とを接続させる電線接続部４２と、を備えている。端子本体４１には、その中央に貫通孔４ａが形成されている。各電圧検出用端子４は、その貫通孔４ａ内に電池２０の正極２２又は負極２３のいずれか一方が挿入されるとともに各バスバ３に重ねられて、各バスバ３と電気的に接続されるとともに、電線接続部４２で電圧検出線５と電気的に接続される。   Each of the plurality of voltage detection terminals 4 is obtained by pressing a metal plate or the like. As shown in FIG. 2, a rectangular plate-like terminal body 41 and a continuous terminal body 41 are provided. And an electric wire connecting portion 42 for connecting the terminal body 41 and the voltage detection line 5 to each other. The terminal body 41 is formed with a through hole 4a at the center thereof. Each voltage detection terminal 4 is electrically connected to each bus bar 3 while either one of the positive electrode 22 or the negative electrode 23 of the battery 20 is inserted into the through hole 4a and overlapped with each bus bar 3. The electric wire connection part 42 is electrically connected to the voltage detection line 5.

ケース６は、電池集合体２の上面と略等しい略長方形に形成されており、電池集合体２の上面に重ねられる。ケース６は、図３、図４にも示すように、各バスバ３とこのバスバ３に重ねられた各電圧検出用端子４とをそれぞれ収容可能な箱状に形成されかつ矢印Ｙ方向に沿って直線上に連結された複数のバスバ収容部７「（収容部）の一例」と、複数のバスバ収容部７の並び方向に平行な直線上に並設して設けられて電圧検出用端子４に接続された電圧検出線５を矢印Ｙ方向に配索させる樋状の配索部８と、各バスバ収容部７の開口縁部にヒンジ９０を介して回動自在に連結されて、配索部８の開口の一部を覆う覆い位置と、配索部８の開口全部を露出する露出位置と、に回動自在な連結回動部９「（連結部）の一例」と、を備えて構成されている。   The case 6 is formed in a substantially rectangular shape that is substantially equal to the upper surface of the battery assembly 2, and overlaps the upper surface of the battery assembly 2. As shown in FIGS. 3 and 4, the case 6 is formed in a box shape that can accommodate each bus bar 3 and each voltage detection terminal 4 stacked on the bus bar 3, and along the arrow Y direction. A plurality of bus bar accommodating portions 7 “an example of (accommodating portion)” connected on a straight line and a voltage detection terminal 4 provided in parallel on a straight line parallel to the arrangement direction of the plurality of bus bar accommodating portions 7. A hook-like routing portion 8 for routing the connected voltage detection line 5 in the direction of the arrow Y, and an opening edge portion of each bus bar housing portion 7 are rotatably connected via a hinge 90, and the routing portion 8 includes a cover position that covers a part of the opening 8 and an exposed position that exposes the entire opening of the routing portion 8. Has been.

図４に示すように、複数のバスバ収容部７は、それぞれ、矢印Ｘ方向の一端から他端まで連続して設けられて表面上にバスバ３を載置させる底壁７Ａと、内側にバスバ３を取り囲む周壁７Ｂと、備えている。また、底壁７Ａは、その矢印Ｙ方向の寸法が、バスバ３の一対の貫通孔３ａ間の寸法よりも小さくなるように形成されていて、周壁７Ｂの矢印Ｙ方向の中央部において、バスバ３を載置させている。この底壁７Ａの矢印Ｙ方向の両側は、電池２０の電極２２、２３を挿通させるために開口している。   As shown in FIG. 4, each of the plurality of bus bar accommodating portions 7 is provided continuously from one end to the other end in the direction of arrow X and has a bottom wall 7 </ b> A for placing the bus bar 3 on the surface, and a bus bar 3 on the inner side. And a peripheral wall 7B that surrounds. Further, the bottom wall 7A is formed such that the dimension in the arrow Y direction is smaller than the dimension between the pair of through holes 3a of the bus bar 3, and the bus bar 3 is formed at the center of the peripheral wall 7B in the arrow Y direction. Is placed. Both sides of the bottom wall 7A in the direction of arrow Y are opened to allow the electrodes 22 and 23 of the battery 20 to be inserted therethrough.

周壁７Ｂは、バスバモジュールの長手方向（矢印Ｙ方向）に対向するとともに、配索部８に連続された一対の側壁７０、７１と、一対の側壁７０、７１に連続された連続壁７２と、を備えている。連続壁７２には、内面に、底壁７Ａ上に載置された底壁７Ａ上に載置されたバスバ３に重ねられた電圧検出用端子４を係止する係止爪７３が設けられている。   The peripheral wall 7B is opposed to the longitudinal direction (arrow Y direction) of the bus bar module, and has a pair of side walls 70 and 71 that are continuous to the routing portion 8, and a continuous wall 72 that is continuous to the pair of side walls 70 and 71. It has. The continuous wall 72 is provided with a locking claw 73 for locking the voltage detection terminal 4 overlaid on the bus bar 3 mounted on the bottom wall 7A mounted on the bottom wall 7A on the inner surface. Yes.

配索部８は、バスバ収容部７の底壁７Ａと同一平面に連続して形成されて表面上に電圧検出線５を載置する基壁８０と、基壁８０の幅方向（矢印Ｘ方向）の両縁から立設して形成された一対の立設壁８１、８２と、を備えている。一対の立設壁８１、８２の高さ寸法は、周壁７Ｂの高さ寸法よりも大きく形成され、一対の立設壁８１、８２（配索部８）は、その頂部が、周壁７Ｂ（バスバ収容部７）の頂部よりも高い位置に設けられている。   The routing portion 8 is formed continuously in the same plane as the bottom wall 7A of the bus bar housing portion 7 and has a base wall 80 on which the voltage detection line 5 is placed, and a width direction of the base wall 80 (in the direction of the arrow X) ) And a pair of standing walls 81 and 82 formed upright from both edges. The height dimension of the pair of standing walls 81 and 82 is formed larger than the height dimension of the peripheral wall 7B, and the top part of the pair of standing walls 81 and 82 (routing part 8) is the peripheral wall 7B (bus bar). It is provided at a position higher than the top of the accommodating part 7).

一対の立設壁８１、８２のうち、バスバモジュールの幅方向（矢印Ｘ方向）のバスバ収容部７から離れた側の一方の立設壁８１配索部８からカバー９１に向かって上方に突出して形成された突出部８３が設けられている。突出部８３は、配索部８の導入口８Ａの矢印Ｘ方向に延長された位置に設けられている。この突出部８３は、上方に向かうに従って矢印Ｙ方向の寸法が徐々に小さくなるように形成された半円状に形成されている。   Of the pair of standing walls 81, 82, it protrudes upward toward the cover 91 from one standing wall 81 routing portion 8 on the side away from the bus bar housing portion 7 in the width direction (arrow X direction) of the bus bar module. A protruding portion 83 is provided. The protrusion 83 is provided at a position extended in the arrow X direction of the introduction port 8A of the routing portion 8. The projecting portion 83 is formed in a semicircular shape formed so that the dimension in the arrow Y direction gradually decreases as it goes upward.

他方の立設壁８２、即ち、バスバモジュールの幅方向（矢印Ｘ方向）のバスバ収容部７に近接した側の立設壁８２には、バスバ収容部７から導出された電圧検出線５を配索部８の内部に導入させる導入口８Ａが設けられている。導入口８Ａは、ヒンジ９０の矢印Ｘ方向に延長された位置に設けられている。さらに、他方の立設壁８２には、その外面に、後述する連結回動部９の係止部９４に係止されて、連結回動部９のカバー９１を配索部８の開口を覆う覆い位置で維持させるための係止受け部８４（図４に示す）が設けられている。係止受け部８４は、導入口８Ａの矢印Ｙ方向の他方側に隣接した位置に設けられている。   The voltage detection line 5 led out from the bus bar housing portion 7 is arranged on the other standing wall 82, that is, the standing wall 82 on the side close to the bus bar housing portion 7 in the width direction (arrow X direction) of the bus bar module. An introduction port 8 </ b> A that is introduced into the inside of the rope portion 8 is provided. The introduction port 8A is provided at a position extended in the arrow X direction of the hinge 90. Further, the other standing wall 82 is locked to an outer surface thereof by a locking portion 94 of the connecting rotation portion 9 described later, and the cover 91 of the connecting rotation portion 9 covers the opening of the routing portion 8. A lock receiving portion 84 (shown in FIG. 4) is provided for maintaining the cover in the covering position. The latch receiving portion 84 is provided at a position adjacent to the other side of the introduction port 8A in the arrow Y direction.

係止受け部８４は、他方の立設壁８２の上端から下方に間隔をあけた位置に設けられている。この係止受け部８４は、上下方向（矢印Ｚ方向）に貫通する枠状に形成されていて、枠状の係止受け部８４を構成する壁部のうち、矢印Ｘ方向の立設壁８２側の壁部の下端に、連結回動部９の係止部９４が係止するように構成されている。   The latch receiving portion 84 is provided at a position spaced downward from the upper end of the other standing wall 82. The locking receiving portion 84 is formed in a frame shape penetrating in the vertical direction (arrow Z direction), and among the wall portions constituting the frame-shaped locking receiving portion 84, the standing wall 82 in the arrow X direction. The engaging part 94 of the connecting rotation part 9 is configured to be engaged with the lower end of the side wall part.

連結回動部９は、図４に示すように、矢印Ｙ方向を中心として１８０度回動自在にバスバ収容部７に連結されている。連結回動部９は、配索部８の開口の一部を覆うカバー９１と、ヒンジ９０に連続されるとともにカバー９１と平行に設けられた平行部９２と、平行部９２に連続されてカバー９１に向かって立ち上がる立ち上がり部９３（図１に示す）と、平行部９２に連続して設けられた係止部９４と、が設けられている。カバー９１、平行部９２、及び立ち上がり部９３は、矢印Ｘ方向に沿って直線上に並んで設けられ、導入口８Ａの開口を覆う位置に設けられている。また、係止部９４は、これらのカバー９１、平行部９２、及び立ち上がり部９３の矢印Ｙ方向の一方側に設けられている。カバー９１、平行部９２、及び立ち上がり部９３の矢印Ｙ方向の寸法は、導入口８Ａの矢印Ｙ方向の寸法よりも僅かに大きく形成されているとともに、バスバ３の一対の貫通孔３ａ間の寸法（電池２０の電極２２、２３間の寸法）よりも小さくなるように形成されている。   As shown in FIG. 4, the connecting and rotating part 9 is connected to the bus bar accommodating part 7 so as to be rotatable by 180 degrees about the arrow Y direction. The connecting rotation part 9 is a cover 91 that covers a part of the opening of the routing part 8, a parallel part 92 that is continuous with the hinge 90 and provided in parallel with the cover 91, and a cover that is continuous with the parallel part 92. A rising portion 93 (shown in FIG. 1) that rises toward 91 and a locking portion 94 that is provided continuously to the parallel portion 92 are provided. The cover 91, the parallel part 92, and the rising part 93 are provided side by side along the arrow X direction, and are provided at positions that cover the opening of the introduction port 8A. The locking portion 94 is provided on one side of the cover 91, the parallel portion 92, and the rising portion 93 in the arrow Y direction. The dimensions of the cover 91, the parallel part 92, and the rising part 93 in the arrow Y direction are slightly larger than the dimension of the introduction port 8 </ b> A in the arrow Y direction, and the dimension between the pair of through holes 3 a of the bus bar 3. It is formed to be smaller than (a dimension between the electrodes 22 and 23 of the battery 20).

ヒンジ９０は、バスバ収容部７の連続壁７２と平行部９２との間に、連続壁７２及び平行部９２に一体に設けられている。このヒンジ９０は、撓み易くするために、平行部９２よりも幅狭に形成され、かつ、薄肉に形成されている。   The hinge 90 is provided integrally with the continuous wall 72 and the parallel portion 92 between the continuous wall 72 and the parallel portion 92 of the bus bar housing portion 7. The hinge 90 is formed to be narrower than the parallel portion 92 and to be thin in order to facilitate bending.

カバー９１は、矩形板状に形成されていて、その矢印Ｘ方向の寸法が、配索部８の矢印Ｘ方向の寸法よりも大きくなるように形成されている。   The cover 91 is formed in a rectangular plate shape, and is formed so that the dimension in the arrow X direction is larger than the dimension in the arrow X direction of the routing portion 8.

平行部９２は、矩形板状に形成されていて、その矢印Ｘ方向の寸法が、バスバ収容部７の矢印Ｘ方向の寸法と略等しくなるように形成されている。この平行部９２には、矢印Ｙ方向の一方側に係止部９４が設けられている。さらに、平行部９２には、その内面（底壁７Ａと相対する面）から突出して形成されて、底壁７Ａに載置されたバスバ３を押し付ける押さえ部９５が設けられている。この押さえ部９５と底壁７Ａとの間に、バスバ３が挟まれることで、当該バスバ３はバスバ収容部７に保持される。   The parallel part 92 is formed in a rectangular plate shape, and is formed so that the dimension in the arrow X direction is substantially equal to the dimension in the arrow X direction of the bus bar housing part 7. The parallel portion 92 is provided with a locking portion 94 on one side in the arrow Y direction. Further, the parallel portion 92 is provided with a pressing portion 95 that is formed so as to protrude from the inner surface (the surface facing the bottom wall 7A) and presses the bus bar 3 placed on the bottom wall 7A. When the bus bar 3 is sandwiched between the pressing portion 95 and the bottom wall 7 </ b> A, the bus bar 3 is held in the bus bar accommodating portion 7.

また、平行部９２は、その矢印Ｙ方向の寸法が、カバー９１が配索部８の開口の一部を覆った状態で、電圧検出用端子４がバスバ収容部７内に設けられていることを目視確認するために、バスバ３の一対の貫通孔３ａ間の寸法よりも小さくなるように形成されている。   The parallel portion 92 has a dimension in the arrow Y direction, and the voltage detection terminal 4 is provided in the bus bar housing portion 7 with the cover 91 covering a part of the opening of the routing portion 8. In order to visually confirm this, it is formed to be smaller than the dimension between the pair of through holes 3a of the bus bar 3.

係止部９４は、平行部９２の立ち上がり部９３側（矢印Ｘ方向側）の端部のから矢印Ｙ方向の一方側に延在して形成された延在部９６と、カバー９１が配索部８の開口を覆った状態で、延在部９６からバスバ収容部７の係止受け部８４内に向かって突出し、かつ、係止受け部８４内に挿入される板状の挿入部９７と、挿入部９７から突出して設けられ、係止受け部８４に係止される爪部（図示しない）と、を備えている。   The locking portion 94 includes an extended portion 96 formed to extend from an end portion of the parallel portion 92 on the rising portion 93 side (arrow X direction side) to one side in the arrow Y direction, and a cover 91 is routed. A plate-like insertion portion 97 that projects from the extending portion 96 into the latch receiving portion 84 of the bus bar housing portion 7 and is inserted into the latch receiving portion 84 in a state of covering the opening of the portion 8. And a claw portion (not shown) provided so as to protrude from the insertion portion 97 and locked to the locking receiving portion 84.

押さえ部９５は、五角形の角柱状に形成されて、カバー９１が配索部８の開口を覆った状態で、底壁７Ａと対向する底面９５Ｂ（「底壁と対向する面」の一例）とバスバ収容部７の底壁７Ａとの隙間が、バスバ３の厚さ寸法よりも僅かに小さい隙間を有する程度の大きさに形成されている。そして、押さえ部９５は、カバー９１が配索部８の開口を覆った状態で、バスバ３を押さえる（バスバ３に当接される）ように設けられている。また、押さえ部９５には、底面９５Ｂに連続されるとともに、電圧検出用端子４側の側面の下端に位置し、かつ、バスバ３に重ねられた電圧検出用端子４の外縁に当接する位置に当接部９５Ａが設けられている。   The pressing portion 95 is formed in a pentagonal prism shape, and a bottom surface 95B (an example of a “surface facing the bottom wall”) facing the bottom wall 7A in a state where the cover 91 covers the opening of the routing portion 8. The gap between the bus bar housing portion 7 and the bottom wall 7 </ b> A is formed to a size that has a gap slightly smaller than the thickness of the bus bar 3. And the press part 95 is provided so that the bus bar 3 may be pressed (it contact | abuts to the bus bar 3) in the state which the cover 91 covered the opening of the wiring part 8. FIG. The pressing portion 95 is continuous with the bottom surface 95B, is located at the lower end of the side surface on the voltage detection terminal 4 side, and is in a position where it abuts on the outer edge of the voltage detection terminal 4 superimposed on the bus bar 3. A contact portion 95A is provided.

立ち上がり部９３は、図１に示すように、カバー９１から平行部９２までの長手寸法が、配索部８の頂部とバスバ収容部７の頂部との寸法差に、突出部８３の最も大きい出寸法（矢印Ｚ方向の寸法）を加算した寸法と、略等しくなるように形成されている。   As shown in FIG. 1, the rising portion 93 has a long dimension from the cover 91 to the parallel portion 92 with the largest protrusion of the protruding portion 83 due to the difference in dimension between the top portion of the routing portion 8 and the top portion of the bus bar accommodating portion 7. It is formed so as to be substantially equal to the dimension obtained by adding the dimensions (dimensions in the arrow Z direction).

続いて、上記構成の電源装置１０の組み立て手順を、図４を参照して説明する。まず、バスバ３、電圧検出用端子４、ケース６などを別々に製造しておく。そして、バスバ３に電圧検出用端子４を重ねるようにバスバ収容部７に押し込んで係止爪７３で係止する。バスバ収容部７に設けられた底壁７Ａ側の開口とバスバ３に設けられた一対の貫通孔３ａとが重なるとともに、バスバ収容部７、及びバスバ３の一対の貫通孔３ａのうち一方に電圧検出用端子４に設けられた貫通孔４ａが重なる。さらに、各電圧検出用端子４に各電圧検出線５の一端部を接続する。各電圧検出線５の他端側を、導入口８Ａ内に挿入させて、配索部８内に配索させる。   Next, an assembly procedure of the power supply apparatus 10 having the above configuration will be described with reference to FIG. First, the bus bar 3, the voltage detection terminal 4, the case 6 and the like are manufactured separately. Then, the voltage detection terminal 4 is pushed into the bus bar 3 so as to overlap the bus bar 3 and is locked by the locking claws 73. The opening on the bottom wall 7A side provided in the bus bar housing portion 7 and the pair of through holes 3a provided in the bus bar 3 are overlapped, and a voltage is applied to one of the bus bar housing portion 7 and the pair of through holes 3a in the bus bar 3. The through holes 4a provided in the detection terminal 4 overlap. Further, one end of each voltage detection line 5 is connected to each voltage detection terminal 4. The other end side of each voltage detection line 5 is inserted into the introduction port 8 </ b> A and routed in the routing unit 8.

そして、連結回動部９を図４（Ａ）に示す開位置から、１８０度回動させて図４（Ｂ）に示す閉位置に位置付ける。すると、押さえ部９５は、その底面９５Ｂがバスバ３に当接され、その当接部９５Ａが電圧検出用端子４の外縁に接触される。こうして、バスバ３、及び電圧検出用端子４が、バスバ収容部７に保持される。また、係止部９４が係止受け部８４内に進入して、爪部が係止受け部８４の下端に係止される。これと同時に、カバー９１が、突出部８３の頂部に接触されて、配索部８の開口の一部が覆われる。こうして、バスバモジュール１の組み立てが完了する。   And the connection rotation part 9 is rotated 180 degree | times from the open position shown to FIG. 4 (A), and is located in the closed position shown in FIG. 4 (B). Then, the bottom surface 95 </ b> B of the pressing portion 95 is brought into contact with the bus bar 3, and the contact portion 95 </ b> A is brought into contact with the outer edge of the voltage detection terminal 4. In this way, the bus bar 3 and the voltage detection terminal 4 are held in the bus bar accommodating portion 7. Further, the locking portion 94 enters the locking receiving portion 84 and the claw portion is locked to the lower end of the locking receiving portion 84. At the same time, the cover 91 is brought into contact with the top of the protruding portion 83 to cover a part of the opening of the routing portion 8. Thus, the assembly of the bus bar module 1 is completed.

上述した手順で組み立てられたバスバモジュール１は、電池集合体２の上面に重ねられ、ケース６の底壁７Ａ側の開口、バスバ３の貫通孔３ａ、電圧検出用端子４の貫通孔４ａを挿入された正極２２、及び負極２３にナット２Ａが螺合される。この際、ナット２Ａの螺合に伴って、電圧検出用端子４を回転させる外力が作用するが、電圧検出用端子４の外縁に当接部９５Ａが当接されるから、電圧検出用端子４の回転を抑止できる。こうして、電池２０の電極２２、２３とバスバ３と電圧検出線５が電気的に接続されて、電源装置１０の組み立てが完了する。   The bus bar module 1 assembled in the above-described procedure is overlaid on the upper surface of the battery assembly 2, and the opening on the bottom wall 7A side of the case 6, the through hole 3a of the bus bar 3, and the through hole 4a of the voltage detection terminal 4 are inserted. The nut 2 </ b> A is screwed to the positive electrode 22 and the negative electrode 23 that are formed. At this time, an external force that rotates the voltage detection terminal 4 acts with the screwing of the nut 2 </ b> A. However, since the contact portion 95 </ b> A contacts the outer edge of the voltage detection terminal 4, the voltage detection terminal 4. Can be prevented. Thus, the electrodes 22, 23 of the battery 20, the bus bar 3, and the voltage detection line 5 are electrically connected, and the assembly of the power supply device 10 is completed.

上述した実施形態によれば、連結回動部９に押さえ部９５を形成することで、少なくともバスバ３がバスバ収容部７に保持されるから、バスバ収容部７に設けた部品を保持させるための構造の数を減らすことができ、よって、ケース６の構造が単純になり、これに伴って、ケース６を成型するための金型の構造を単純にすることができる。また、押さえ部９５により、バスバ３がバスバ収容部７に保持されるから、仮に、係止爪７３が削れたり、破損することがあったとしても、押さえ部９５により、バスバ３がバスバ収容部７に保持されているから、ケース６からの部品の脱落を抑制することができる。   According to the embodiment described above, at least the bus bar 3 is held by the bus bar accommodating portion 7 by forming the pressing portion 95 in the connecting rotation portion 9, so that the components provided in the bus bar accommodating portion 7 are held. The number of structures can be reduced, and thus the structure of the case 6 can be simplified. Accordingly, the structure of the mold for molding the case 6 can be simplified. Further, since the bus bar 3 is held in the bus bar housing portion 7 by the pressing portion 95, even if the locking claw 73 may be scraped or damaged, the bus bar 3 is moved by the pressing portion 95. 7, it is possible to prevent parts from falling off from the case 6.

以上、本発明について、好ましい実施形態を挙げて説明したが、本発明は上記実施形態の構成に限定されるものではない。上述した実施形態では、押さえ部９５の当接部９５Ａが、電圧検出用端子４の外縁に当接可能なように形成されていたが、本発明はこれに限定されるものではない。当接部９５Ａが、電圧検出用端子４に接続された電圧検出線５に当接可能なように形成されていてもよく、電圧検出用端子４の外縁、及び電圧検出用端子４に接続された電圧検出線５の両方に当接可能なように形成されていてもよい。   Although the present invention has been described with reference to the preferred embodiment, the present invention is not limited to the configuration of the above embodiment. In the embodiment described above, the contact portion 95A of the pressing portion 95 is formed so as to be able to contact the outer edge of the voltage detection terminal 4. However, the present invention is not limited to this. The contact portion 95A may be formed so as to be able to contact the voltage detection line 5 connected to the voltage detection terminal 4, and is connected to the outer edge of the voltage detection terminal 4 and the voltage detection terminal 4. Further, it may be formed so as to be able to contact both of the voltage detection lines 5.

また、上述した実施形態では、押さえ部９５がバスバ３をバスバ収容部７の底壁７Ａに押し付けて、バスバ３をバスバ収容部７に保持させていたが、本発明はこれに限定されるものではない。例えば、押さえ部９５が、底壁７Ａと相対する面に、電圧検出用端子４の厚さ寸法程度の段差を有して形成されていて、バスバ３及び電圧検出用端子４の両方を底壁７Ａに押し付けることで、バスバ３及び電圧検出用端子４の両方をバスバ収容部７に保持させていてもよい。換言すると、押さえ部９５が、バスバ３及び電圧検出用端子４の両方をバスバ収容部７に保持させてもよい。   In the above-described embodiment, the holding portion 95 presses the bus bar 3 against the bottom wall 7A of the bus bar housing portion 7 and holds the bus bar 3 on the bus bar housing portion 7. However, the present invention is limited to this. is not. For example, the holding portion 95 is formed on the surface facing the bottom wall 7A with a level difference of about the thickness dimension of the voltage detection terminal 4, and both the bus bar 3 and the voltage detection terminal 4 are connected to the bottom wall. Both the bus bar 3 and the voltage detection terminal 4 may be held in the bus bar accommodating portion 7 by being pressed against 7A. In other words, the pressing portion 95 may hold both the bus bar 3 and the voltage detection terminal 4 in the bus bar accommodating portion 7.

また、上述した実施形態では、カバー９１が配索部８の開口を覆う前に、電池２０の電極２２、２３にナット２Ａを螺合させていたが、本発明はこれに限定されるものではない。連結回動部９の平行部９２の矢印Ｙ方向の寸法が、バスバ３の一対の貫通孔３ａ間の矢印Ｙ方向の寸法よりも小さくなるように形成されているから、カバー９１が配索部８の開口を覆った後（覆った状態）であっても、電池２０の電極２２、２３にナット２Ａを螺合させることができる。   Further, in the above-described embodiment, the nut 2A is screwed to the electrodes 22 and 23 of the battery 20 before the cover 91 covers the opening of the routing portion 8, but the present invention is not limited to this. Absent. Since the dimension in the arrow Y direction of the parallel part 92 of the connecting rotation part 9 is formed to be smaller than the dimension in the arrow Y direction between the pair of through holes 3a of the bus bar 3, the cover 91 is arranged in the routing part. Even after covering the opening 8 (covered state), the nut 2 </ b> A can be screwed into the electrodes 22 and 23 of the battery 20.

また、上述した実施形態では、連結回動部９は、各バスバ収容部７の開口縁部にヒンジ９０を介して回動自在に連結されていたが、本発明はこれに限定されるものではない。連結回動部９は、各バスバ収容部７と別体に形成されていてもよい。その場合には、ヒンジ９０は省略してもよい。   Further, in the above-described embodiment, the connecting rotation part 9 is rotatably connected to the opening edge part of each bus bar housing part 7 via the hinge 90, but the present invention is not limited to this. Absent. The connection rotation part 9 may be formed separately from each bus bar accommodating part 7. In that case, the hinge 90 may be omitted.

なお、前述した各実施形態は本発明の代表的な形態を示したに過ぎず、本発明は実施形態に実施形態に限定されるものではない。即ち、当業者は、従来公知の知見に従い、本発明の骨子を逸脱しない範囲で種々変形して実施することができる。かかる変形によってもなお本発明のバスバモジュール１の構成を具備する限り、もちろん、本発明の範疇に含まれるものである。   Each of the above-described embodiments is merely a representative form of the present invention, and the present invention is not limited to the embodiment. That is, those skilled in the art can implement various modifications in accordance with conventionally known knowledge without departing from the scope of the present invention. As long as the configuration of the bus bar module 1 of the present invention is still provided by such modification, it is of course included in the scope of the present invention.

１ バスバモジュール
１０ 電源装置
２ 電池集合体
３ バスバ
４ 電圧検出用端子（「端子」の一例）
５ 電圧検出線（「電線」の一例）
６ ケース
７ バスバ収容部（「収容部」の一例）
７Ａ 底壁
７Ｂ 周壁
９ 連結回動部（「連結部」の一例）
９１ カバー
９５ 押さえ部
９５Ａ 当接部 DESCRIPTION OF SYMBOLS 1 Bus bar module 10 Power supply device 2 Battery assembly 3 Bus bar 4 Voltage detection terminal (an example of “terminal”)
5 Voltage detection line (an example of “electric wire”)
6 Case 7 Bus bar housing part (an example of "housing part")
7A Bottom wall 7B Peripheral wall 9 Connection rotation part (an example of "connection part")
91 Cover 95 Holding part 95A Abutting part

Claims (6)

各電極が直線上に並ぶように配列された複数の電池のうち隣接する電池の電極同士を接続することでこれら複数の電池を直列に接続する複数のバスバと、
前記複数のバスバを収容するケースと、を備えたバスバモジュールであって、
前記ケースには、前記各バスバを収容する複数の収容部と、該各収容部に連結される複数の連結部と、が設けられ、
前記各収容部は、前記バスバを載置させる底壁と、該底壁から立設して前記バスバを取り囲む周壁と、を備え、
前記連結部には、前記底壁に向かって突出して形成されて、前記底壁に載置された前記バスバを押し付ける押さえ部が設けられ、
前記押さえ部は、前記各収容部に対して１つのみ設けられ、
前記押さえ部と前記底壁との間に前記バスバが挟まれて前記収容部に保持されることを特徴とするバスバモジュール。 A plurality of bus bars connecting the plurality of batteries in series by connecting the electrodes of adjacent batteries among the plurality of batteries arranged so that each electrode is arranged in a straight line;
A bus bar module comprising a case for accommodating the plurality of bus bars,
The case is provided with a plurality of accommodating portions that accommodate the bus bars, and a plurality of connecting portions that are coupled to the accommodating portions.
Each of the housing portions includes a bottom wall on which the bus bar is placed, and a peripheral wall that stands up from the bottom wall and surrounds the bus bar,
The connecting portion is formed to protrude toward the bottom wall, and is provided with a pressing portion that presses the bus bar placed on the bottom wall,
Only one pressing part is provided for each storage part,
The bus bar module, wherein the bus bar is sandwiched between the pressing portion and the bottom wall and held in the housing portion. 各電極が直線上に並ぶように配列された複数の電池のうち隣接する電池の電極同士を接続することでこれら複数の電池を直列に接続する複数のバスバと、
前記複数のバスバを収容するケースと、を備えたバスバモジュールであって、
前記ケースには、前記各バスバを収容する複数の収容部と、該各収容部に連結される複数の連結部と、が設けられ、
前記各収容部は、前記バスバを載置させる底壁と、該底壁から立設して前記バスバを取り囲む周壁と、を備え、
前記連結部には、前記底壁に向かって突出して形成されて、前記底壁に載置された前記バスバを押し付ける押さえ部が設けられ、前記押さえ部と前記底壁との間に前記バスバが挟まれて前記収容部に保持され、
前記各バスバに接続されるとともに、前記収容部に収容される端子をさらに備え、
前記押さえ部には、前記端子が前記収容部に収容された状態で、前記端子の外縁に当接する位置、及び／又は、前記端子に接続された電線に当接する位置に当接部が設けられていることを特徴とするバスバモジュール。 A plurality of bus bars connecting the plurality of batteries in series by connecting the electrodes of adjacent batteries among the plurality of batteries arranged so that each electrode is arranged in a straight line;
A bus bar module comprising a case for accommodating the plurality of bus bars,
The case is provided with a plurality of accommodating portions that accommodate the bus bars, and a plurality of connecting portions that are coupled to the accommodating portions.
Each of the housing portions includes a bottom wall on which the bus bar is placed, and a peripheral wall that stands up from the bottom wall and surrounds the bus bar,
The connecting portion is provided with a pressing portion that protrudes toward the bottom wall and presses the bus bar placed on the bottom wall, and the bus bar is interposed between the pressing portion and the bottom wall. Sandwiched and held in the housing part,
A terminal connected to each of the bus bars and housed in the housing portion;
The pressing portion is provided with an abutting portion at a position where it abuts on an outer edge of the terminal and / or a position where it abuts on an electric wire connected to the terminal in a state where the terminal is accommodated in the accommodating portion. and wherein the to Luba Suva module that are. 前記端子が、板状の端子本体と、該端子本体の周縁の一部から延出された電線接続部と、を備え、The terminal includes a plate-like terminal body, and an electric wire connection portion extending from a part of the periphery of the terminal body,
前記当接部が、前記電線接続部に当接する位置にあることを特徴とする請求項２に記載のバスバモジュール。The bus bar module according to claim 2, wherein the contact portion is in a position where the contact portion contacts the wire connecting portion. 前記端子は、前記バスバに重ねて接続され、
前記押さえ部が、前記底壁と対向する面に段差を有し、
前記押さえ部が、前記端子を前記底壁に押し付けることを特徴とする請求項２または請求項３に記載のバスバモジュール。 The terminal is connected to the bus bar so as to overlap,
The pressing portion has a step on a surface facing the bottom wall;
Busbar module of claim 2 or claim 3 wherein the pressing unit, characterized in that pressing said terminal to said bottom wall. 前記複数の収容部に並設されて、前記端子に接続される電線を前記配列方向に沿って配索させる配索部をさらに備え、
前記連結部には、前記配索部の開口を覆うカバーが設けられていることを特徴とする請求項２乃至請求項４のうち何れか一項に記載のバスバモジュール。 It further comprises a routing portion that is arranged in parallel with the plurality of receiving portions and routes the electric wires connected to the terminals along the arrangement direction.
The bus bar module according to any one of claims 2 to 4 , wherein a cover that covers an opening of the wiring portion is provided in the connecting portion. 正極及び負極が交互に逆向きに重ね合わされた複数の電池から構成された電池集合体と、
請求項１乃至請求項５のうちいずれか一項に記載されたバスバモジュールと、を備えたことを特徴とする電源装置。 A battery assembly composed of a plurality of batteries in which positive and negative electrodes are alternately stacked in opposite directions;
A power supply device comprising: the bus bar module according to any one of claims 1 to 5 .
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