JP2017098043A - Holding structure for terminal for voltage detection - Google Patents

Holding structure for terminal for voltage detection Download PDF

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JP2017098043A
JP2017098043A JP2015228036A JP2015228036A JP2017098043A JP 2017098043 A JP2017098043 A JP 2017098043A JP 2015228036 A JP2015228036 A JP 2015228036A JP 2015228036 A JP2015228036 A JP 2015228036A JP 2017098043 A JP2017098043 A JP 2017098043A
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bus bar
voltage detection
detection terminal
terminal
holding
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JP6679282B2 (en
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克 今井
Katsu Imai
克 今井
泰孝 宮崎
Yasutaka Miyazaki
泰孝 宮崎
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Yazaki Corp
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    • 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

Abstract

PROBLEM TO BE SOLVED: To provide a holding structure for a terminal for voltage detection capable of downsizing/reducing a wire routing body in weight and reducing cost of manufacture by reducing useless portions while surely performing positioning or the like of the terminal for voltage detection relative to a bus bar holding part.SOLUTION: A terminal 9 for voltage detection for measuring a voltage of a unit cell is held by a bus bar holding part 10 of a wire routing body 20 housing a plurality of bus bars 6 electrically connecting unit cells of a battery assembly with each other therein. The terminal 9 for voltage detection includes: an electric connection part 91 which is connected to the bus bar 6; a wire connection part 93 to which a wire W is connected; and a temporary fixing part 99 which is provided between the electric connection part and the wire connection part and temporarily fixed to the bus bar holding part 10.SELECTED DRAWING: Figure 2

Description

本発明は、電圧検出用端子の保持構造に関する。   The present invention relates to a holding structure for a voltage detection terminal.

ハイブリッド自動車や電気自動車等の車両においてモータを駆動するための電力変換装置に接続される車載用の電池パックでは、多数の電池セルの正極端子と負極端子が隣り合うように交互に逆向きに重ね合わされて横並びに配置されて電池モジュールが構成されている。そして、隣り合う電池セルの電極端子間をバスバーなどの接続部材で接続することにより、複数の電池セルが直列や並列に接続されるようになっている。
上記構成の電池モジュールを組み立てる際には、複数箇所の電極端子間をバスバーで接続する必要がある。そこで、接続する電極端子間の数に応じて、バスバーを絶縁樹脂製の電線配索体におけるバスバー収容部（バスバー保持部）に収容したバスバーモジュールが用いられている。 In an in-vehicle battery pack connected to a power conversion device for driving a motor in a vehicle such as a hybrid vehicle or an electric vehicle, the positive and negative terminals of a large number of battery cells are alternately stacked in opposite directions. Thus, the battery modules are arranged side by side. A plurality of battery cells are connected in series or in parallel by connecting electrode terminals of adjacent battery cells with a connecting member such as a bus bar.
When assembling the battery module having the above-described configuration, it is necessary to connect a plurality of electrode terminals with a bus bar. Therefore, a bus bar module is used in which a bus bar is accommodated in a bus bar accommodating portion (bus bar holding portion) in an insulating resin wire arrangement according to the number of electrode terminals to be connected.

ところで、複数の電池セルを直列や並列に接続する場合、電池セル間において電池電圧などの電池特性が不均一であると、電池の劣化や破損を招く可能性がある。そこで、車載用の電池パックにおいては、各電池セル間の電圧に異常が生じる前に充電、放電を中止するため、各バスバーには、電池セルの電圧を検知するための電圧検出線が取付けられている。
従来のバスバーモジュールにおいては、電圧検出線は、被覆電線の先端を皮剥ぎして心線（導体）に丸型端子を圧着し、その丸型端子を電池セルの電極端子に嵌合して、電極端子にバスバーと共にナットで共締めする構造が採用されていた（例えば、特許文献１等参照）。 By the way, when a plurality of battery cells are connected in series or in parallel, if the battery characteristics such as the battery voltage are not uniform among the battery cells, the battery may be deteriorated or damaged. Therefore, in an in-vehicle battery pack, a voltage detection line for detecting the voltage of the battery cell is attached to each bus bar in order to stop charging and discharging before abnormality occurs in the voltage between the battery cells. ing.
In the conventional bus bar module, the voltage detection line is peeled off from the end of the covered electric wire, and the round terminal is crimped to the core wire (conductor), and the round terminal is fitted to the electrode terminal of the battery cell. A structure in which the electrode terminal is fastened together with a bus bar together with a nut has been employed (see, for example, Patent Document 1).

図５に示すように、従来のバスバーモジュール５０１は、複数のバスバー５２１を個々に収容固定するバスバー収容部５０３を複数有した絶縁樹脂製の電線配索体５１０を備えている。電線配索体５１０には、バスバー収容部５０３と電線配索部５０５とが一体に形成されている。
バスバー５２１は、バスバー収容部５０３に収容固定された上で隣り合う電池を直列に接続することができるように形成されている。バスバー５２１は、円形状に貫通する一対の電池接続穴５２３を有する。 As shown in FIG. 5, the conventional bus bar module 501 includes an insulating resin wire routing body 510 having a plurality of bus bar accommodating portions 503 for individually accommodating and fixing a plurality of bus bars 521. A bus bar housing portion 503 and a wire routing portion 505 are integrally formed on the wire routing body 510.
The bus bar 521 is formed so that adjacent batteries can be connected in series after being accommodated and fixed in the bus bar accommodating portion 503. The bus bar 521 has a pair of battery connection holes 523 that penetrates in a circular shape.

バスバー収容部５０３は、外形が長方形となる底壁５０２と、この底壁５０２の端部に連続する枠形状の周壁５０４とを有する。
周壁５０４は、バスバー５２１の外形に合わせて配置形成される。バスバー長手方向に平行な一対の長側壁には、係止ランス５０９がそれぞれ形成される。この一対の係止ランス５０９は、バスバー収容部５０３内に収容されたバスバー５２１を収容固定する。また、バスバー５２１は、この外形部分が底壁５０２に受け止められるとともに、バスバー収容部５０３の周壁５０４により囲まれてガタ付なく保持された状態に固定される。 The bus bar accommodating portion 503 has a bottom wall 502 whose outer shape is rectangular, and a frame-shaped peripheral wall 504 that is continuous with an end of the bottom wall 502.
The peripheral wall 504 is arranged and formed in accordance with the outer shape of the bus bar 521. A locking lance 509 is formed on each of the pair of long side walls parallel to the bus bar longitudinal direction. The pair of locking lances 509 accommodate and fix the bus bar 521 accommodated in the bus bar accommodating portion 503. In addition, the bus bar 521 is fixed to a state in which the outer shape portion is received by the bottom wall 502 and is surrounded by the peripheral wall 504 of the bus bar housing portion 503 without being loose.

更に、バスバー収容部５０３には、単電池の電圧を測定するための電圧検出用端子５３１が保持される。この電圧検出用端子５３１の保持構造は、電圧検出用端子５３１における電気接続部５３３の凸部５３７を周壁５０４の凹部５１５に差し込み、電気接続部５３３の側縁を周壁５０４の係止ランス５１１に係止して仮固定している。また、電圧検出用端子５３１の位置決めは、周壁５０４に突設した位置決めリブ５１３が電気接続部５３３の側縁に当接することで行われる。   Further, the bus bar housing portion 503 holds a voltage detection terminal 531 for measuring the voltage of the unit cell. In this voltage detection terminal 531 holding structure, the convex portion 537 of the electric connection portion 533 in the voltage detection terminal 531 is inserted into the concave portion 515 of the peripheral wall 504, and the side edge of the electric connection portion 533 is connected to the locking lance 511 of the peripheral wall 504. It is locked and temporarily fixed. The voltage detection terminal 531 is positioned by a positioning rib 513 protruding from the peripheral wall 504 coming into contact with the side edge of the electrical connection portion 533.

電圧検出用端子５３１に一端が接続された電圧検出線Ｗは、バスバー収容部５０３の並び方向に沿った一側縁に設けられた電線配索部５０５に収容され、他端が図示しない電圧検出回路に接続される。電線配索部５０５は、連結部５０７を介して各バスバー収容部５０３に接続されている。   The voltage detection line W having one end connected to the voltage detection terminal 531 is accommodated in a wire routing portion 505 provided at one side edge along the arrangement direction of the bus bar accommodating portions 503, and the other end is not shown in the voltage detection. Connected to the circuit. The electric wire routing portion 505 is connected to each bus bar accommodating portion 503 via a connecting portion 507.

特開２０１１−１８４９９号公報JP 2011-18499 A

しかしながら、上述した従来の電圧検出用端子５３１の保持構成では、電圧検出用端子５３１をバスバー収容部５０３に保持させる際の組付け性がよくないという問題があった。即ち、電圧検出用端子５３１をバスバー収容部５０３に保持させる際には、図５に示したように、電気接続部５３３の一方の側縁から突出した凸部５３７を周壁５０４の凹部５１５に向けて斜めに差し込んだ後、電気接続部５３３の他方の側縁を底壁５０２側に回動させることで、電気接続部５３３の側縁を周壁５０４に設けた係止ランス５１１に係止させて仮固定している。そのため、電気接続部５３３の凸部５３７を周壁５０４の凹部５１５に差し込む方向と、電気接続部５３３の側縁を周壁５０４の係止ランス５１１に係止させる方向とが異なり、組付け性が低下してしまう。   However, in the conventional configuration for holding the voltage detection terminal 531 described above, there is a problem that the assembling property when the voltage detection terminal 531 is held in the bus bar accommodating portion 503 is not good. That is, when the voltage detection terminal 531 is held in the bus bar housing portion 503, the convex portion 537 protruding from one side edge of the electrical connection portion 533 is directed toward the concave portion 515 of the peripheral wall 504 as shown in FIG. Then, the other side edge of the electrical connection portion 533 is rotated to the bottom wall 502 side, so that the side edge of the electrical connection portion 533 is locked to a locking lance 511 provided on the peripheral wall 504. Temporarily fixed. Therefore, the direction in which the convex portion 537 of the electrical connecting portion 533 is inserted into the concave portion 515 of the peripheral wall 504 is different from the direction in which the side edge of the electrical connecting portion 533 is locked to the locking lance 511 of the peripheral wall 504, and the assemblability is reduced Resulting in.

また、周壁５０４に突設した位置決めリブ５１３が電気接続部５３３の側縁に当接することで、電圧検出用端子５３１の位置決めが行われる。そのため、各バスバー収容部５０３には周壁５０４が必要となり、電線配索体５１０が大型化し、製造コストが高くなると共に重量が重くなる傾向があった。また、周壁５０４の位置決めリブ５１３に側縁を当接させなければならない電圧検出用端子５３１の電気接続部５３３は、バスバー５２１との電気的接続に必要な必要最小限の大きさより大きくなってしまうという問題もある。   Further, the positioning rib 513 projecting from the peripheral wall 504 contacts the side edge of the electrical connection portion 533, whereby the voltage detection terminal 531 is positioned. Therefore, the peripheral wall 504 is required for each bus bar accommodating portion 503, and the electric wire arrangement 510 has a tendency to increase in size and increase in manufacturing cost and weight. In addition, the electrical connection portion 533 of the voltage detection terminal 531 whose side edge must be brought into contact with the positioning rib 513 of the peripheral wall 504 is larger than the minimum necessary size necessary for electrical connection with the bus bar 521. There is also a problem.

本発明は上記状況に鑑みてなされたもので、その目的は、バスバー保持部に対する電圧検出用端子の位置決め等を確実にしつつ無駄な部分を削減し、電線配索体を小型・軽量化して製造コストを低減できる電圧検出用端子の保持構造を提供することにある。   The present invention has been made in view of the above situation, and its purpose is to reduce the useless portion while ensuring the positioning of the voltage detection terminal with respect to the bus bar holding portion and to reduce the size and weight of the electric wire arrangement. An object of the present invention is to provide a voltage detection terminal holding structure capable of reducing the cost.

本発明に係る上記目的は、下記構成により達成される。
（１） 複数の単電池で構成された電池集合体の各単電池を互いに電気的に接続する複数のバスバーが収容される絶縁樹脂製の電線配索体のバスバー保持部に、前記単電池の電圧を測定するための電圧検出用端子が保持される電圧検出用端子の保持構造であって、
前記電圧検出用端子は、前記バスバーに接続される電気接続部と、電線が接続される電線接続部と、前記電気接続部と前記電線接続部との間に設けられ、前記バスバー保持部に仮固定される仮固定部と、を備えることを特徴とする電圧検出用端子の保持構造。 The above object of the present invention is achieved by the following configuration.
(1) In the bus bar holding part of the insulated resin electric wire arrangement body in which a plurality of bus bars for electrically connecting each unit cell of the battery assembly composed of a plurality of unit cells are accommodated, A voltage detection terminal holding structure for holding a voltage detection terminal for measuring a voltage,
The voltage detection terminal is provided between an electrical connection portion connected to the bus bar, an electrical wire connection portion to which an electric wire is connected, and the electrical connection portion and the electrical wire connection portion, and temporarily connected to the bus bar holding portion. A voltage detection terminal holding structure comprising: a temporary fixing portion to be fixed.

上記（１）の構成の電圧検出用端子の保持構造によれば、電圧検出用端子の仮固定部がバスバー保持部に仮固定されるので、バスバーを囲む周壁に電圧検出用端子を仮固定するための固定部を設ける必要がなくなる。その結果、電線配索体の周壁を省略することができ、電線配索体の小型化が可能となる。
また、電圧検出用端子は、電気接続部の側縁を周壁に仮固定させる必要がなくなるので、電気接続部をバスバーとの電気的接続に必要な必要最小限の大きさとして小型化できる。 According to the voltage detection terminal holding structure having the configuration of (1) above, the voltage detection terminal is temporarily fixed to the peripheral wall surrounding the bus bar because the voltage detection terminal temporary fixing portion is temporarily fixed to the bus bar holding portion. Therefore, it is not necessary to provide a fixing part for the purpose. As a result, the peripheral wall of the electric cable arrangement can be omitted, and the electric cable arrangement can be downsized.
In addition, the voltage detection terminal does not need to temporarily fix the side edge of the electrical connection portion to the peripheral wall, so the electrical connection portion can be reduced in size to the minimum necessary size for electrical connection with the bus bar.

（２） 前記仮固定部が、前記バスバー保持部に突設された位置決めピンに嵌合する位置決め孔を有することを特徴とする上記（１）に記載の電圧検出用端子の保持構造。 (2) The voltage detection terminal holding structure according to (1), wherein the temporary fixing portion has a positioning hole that fits into a positioning pin protruding from the bus bar holding portion.

上記（２）の構成の電圧検出用端子の保持構造によれば、電圧検出用端子の仮固定部に設けた位置決め孔が、バスバー保持部の位置決めピンに嵌合することで、電圧検出用端子の仮固定位置を正確に位置決めできる。
また、電圧検出用端子は、電気接続部の側縁を周壁の位置決めリブに当接させて位置決めする必要がなくなるので、電気接続部をバスバーとの電気的接続に必要な必要最小限の大きさとして小型化できる。 According to the voltage detection terminal holding structure having the configuration of (2) above, the positioning hole provided in the temporary fixing portion of the voltage detection terminal is fitted to the positioning pin of the bus bar holding portion, thereby the voltage detection terminal. Can be accurately positioned.
In addition, the voltage detection terminal does not need to be positioned by bringing the side edge of the electrical connection portion into contact with the positioning ribs on the peripheral wall, so that the electrical connection portion is the minimum size necessary for electrical connection with the bus bar. Can be miniaturized.

（３） 前記電圧検出用端子は、前記電気接続部と前記電線接続部との間に立ち上がり壁を有する断面クランク状に形成され、
前記仮固定部は、前記立ち上がり壁に設けられ、前記位置決めピンに対する反嵌入方向の移動が規制される抜け止め部を有することを特徴とする上記（２）に記載の電圧検出用端子の保持構造。 (3) The voltage detection terminal is formed in a cross-sectional crank shape having a rising wall between the electrical connection portion and the wire connection portion,
The voltage detection terminal holding structure according to (2), wherein the temporary fixing portion includes a retaining portion that is provided on the rising wall and is restricted from moving in a direction opposite to the positioning pin. .

上記（３）の構成の電圧検出用端子の保持構造によれば、電圧検出用端子の位置決め孔がバスバー保持部の位置決めピンに嵌入される方向と、立ち上がり壁に設けられた抜け止め部がバスバー保持部にロックされる方向とが同一方向となる為、組付け作業性が向上して製造コストが安くなる。   According to the voltage detection terminal holding structure configured as described in (3) above, the direction in which the positioning hole of the voltage detection terminal is fitted into the positioning pin of the bus bar holding portion and the retaining portion provided on the rising wall are the bus bar. Since the direction locked to the holding portion is the same direction, the assembly workability is improved and the manufacturing cost is reduced.

本発明に係る電圧検出用端子の保持構造によれば、バスバー保持部に対する電圧検出用端子の位置決め等を確実にしつつ無駄な部分を削減し、電線配索体を小型・軽量化して製造コストを低減できる。   According to the voltage detection terminal holding structure according to the present invention, the positioning of the voltage detection terminal with respect to the bus bar holding portion is ensured while reducing wasteful parts, reducing the size and weight of the wire arrangement, and reducing the manufacturing cost. Can be reduced.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態（以下、「実施形態」という。）を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。   The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

本発明の一実施形態に係る電圧検出用端子の保持構造を備えたバスバーモジュールを電池集合体に取り付ける直前の状態を示す部分斜視図である。It is a fragmentary perspective view which shows the state just before attaching the bus-bar module provided with the holding structure of the voltage detection terminal which concerns on one Embodiment of this invention to a battery assembly. 図１に示したバスバーモジュールの要部拡大分解斜視図である。It is a principal part expansion disassembled perspective view of the bus-bar module shown in FIG. （ａ）は図１に示したバスバー保持部に保持された電圧検出用端子の斜視図、（ｂ）は電圧検出用端子の全体斜視図である。(A) is a perspective view of the voltage detection terminal held by the bus bar holding portion shown in FIG. 1, and (b) is an overall perspective view of the voltage detection terminal. 図３のＩＶ−ＩＶ断面矢視図である。FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3. 従来のバスバー及びバスバー収容部を備えたバスバーモジュールの要部分解斜視図である。It is a principal part disassembled perspective view of the bus bar module provided with the conventional bus bar and the bus bar accommodating part.

以下、本発明に係る電圧検出用端子の保持構造の実施形態について、図面を参照しながら説明する。
図１に示すように、本実施形態の電圧検出用端子の保持構造を備えたバスバーモジュール１は、複数の単電池３で構成された電池集合体２に取り付けられ、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の電動モータに、電池集合体からの電力を供給する。 Hereinafter, embodiments of a voltage detection terminal holding structure according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, a bus bar module 1 having a voltage detection terminal holding structure according to the present embodiment is attached to a battery assembly 2 composed of a plurality of single cells 3 and travels using an electric motor. Electric power from the battery assembly is supplied to an electric motor such as an electric vehicle or a hybrid vehicle that travels using both an engine and an electric motor.

図１及び図２に示すように、本発明の一実施形態に係るバスバーモジュール１は、電池集合体２の各単電池３を互いに電気的に接続する複数のバスバー６と、複数のバスバー６の表面にそれぞれ溶接接続される電圧検出用端子９が接続された電圧検出線（電線）Ｗと、絶縁樹脂製の電線配索体２０と、を備える。   As shown in FIGS. 1 and 2, the bus bar module 1 according to an embodiment of the present invention includes a plurality of bus bars 6 that electrically connect the single cells 3 of the battery assembly 2 to each other, and a plurality of bus bars 6. The voltage detection line (electric wire) W to which the terminal 9 for voltage detection connected by welding to the surface is respectively connected, and the electric wire wiring body 20 made from an insulating resin are provided.

電池集合体２は、複数の単電池３と、これら複数の単電池３を互いに重ねて固定する部材（図示せず）と、を有している。それぞれの単電池３は、直方体状の電池本体と、この電池本体の上面の一端及び他端からそれぞれ突出した電極端子である一対のプラス端子４及びマイナス端子５と、を有している。プラス端子４及びマイナス端子５は、導電性の金属により上面が矩形の凸状に形成されている。電池集合体２は、複数の単電池３が、プラス端子４とマイナス端子５が隣り合うように、交互に逆向きに重ね合わされている。電池集合体２は、プラス端子４とマイナス端子５をバスバー６で連結することにより、単電池３と隣接する単電池３との直列接続回路が形成され、高圧直流電圧が得られる。   The battery assembly 2 includes a plurality of unit cells 3 and a member (not shown) that fixes the plurality of unit cells 3 so as to overlap each other. Each unit cell 3 has a rectangular parallelepiped battery body and a pair of plus terminals 4 and minus terminals 5 which are electrode terminals respectively protruding from one end and the other end of the upper surface of the battery body. The positive terminal 4 and the negative terminal 5 are formed of a conductive metal in a convex shape with a rectangular upper surface. In the battery assembly 2, a plurality of single cells 3 are alternately stacked in opposite directions so that the plus terminal 4 and the minus terminal 5 are adjacent to each other. In the battery assembly 2, the positive terminal 4 and the negative terminal 5 are connected by the bus bar 6, thereby forming a series connection circuit between the unit cell 3 and the adjacent unit cell 3, thereby obtaining a high-voltage DC voltage.

本実施形態に係るバスバー６は、図２に示すように、導電性の金属板にプレス加工が施されるなどして得られるものであり、矩形板状の中央部に形成された貫通孔６１を通る直線を挟んで線対称となるように、周縁部（対向する長辺部）に係合部６３が一対形成されている。貫通孔６１は円形の開口形状を有し、係合部６３は半円状の切欠き形状を有する。これらバスバー６の貫通孔６１と係合部６３には、後述するバスバー保持部１０の第１突起２１と第２及び第３突起２３，２５が嵌合される。   As shown in FIG. 2, the bus bar 6 according to the present embodiment is obtained by pressing a conductive metal plate or the like, and has a through hole 61 formed in a central portion of a rectangular plate shape. A pair of engaging portions 63 are formed at the peripheral edge (opposing long sides) so as to be line symmetric with respect to a straight line passing through. The through hole 61 has a circular opening shape, and the engaging portion 63 has a semicircular cutout shape. The first protrusion 21 and the second and third protrusions 23 and 25 of the bus bar holding part 10 to be described later are fitted into the through hole 61 and the engaging part 63 of the bus bar 6.

バスバー６は、長手方向両端部分がそれぞれプラス端子４及びマイナス端子５に溶接接続されることで、単電池３に固定される。勿論、本発明に係るバスバーがプラス端子及びマイナス端子にナット（図示せず）が螺合される場合には、バスバーには一対の端子孔が形成される。   The bus bar 6 is fixed to the unit cell 3 by welding both ends of the bus bar 6 to the plus terminal 4 and the minus terminal 5 respectively. Of course, when a nut (not shown) is screwed into the plus terminal and the minus terminal of the bus bar according to the present invention, a pair of terminal holes are formed in the bus bar.

本実施形態に係る電線配索体２０は、バスバー６が保持されて複数の単電池３の並び方向に並んで設けられる複数のバスバー保持部１０と、複数の電圧検出線Ｗを複数の単電池の重なり方向に沿って収容する電線配索部７と、バスバー保持部１０と電線配索部７とを連結する連結部８と、を有する。電線配索体２０は、電線配索部７の長手方向に沿って等間隔に配置された複数の連結部８の先端側に設けられたバスバー保持部１０が、櫛歯に配置されて絶縁樹脂により一体成形されている。   The electric wire arrangement 20 according to the present embodiment includes a plurality of bus bar holding portions 10 that are provided in the arrangement direction of the plurality of single cells 3 with the bus bars 6 held therein, and a plurality of voltage detection lines W that are provided with the plurality of single cells. And the connecting portion 8 for connecting the bus bar holding portion 10 and the electric wire routing portion 7 to each other. In the electric wire arrangement body 20, the bus bar holding portion 10 provided on the front end side of the plurality of connecting portions 8 arranged at equal intervals along the longitudinal direction of the electric wire arrangement portion 7 is arranged in comb teeth and is an insulating resin. Is integrally molded.

個々のバスバー６は、電線配索体２０のバスバー保持部１０に保持される。バスバー保持部１０は、バスバー６の長手方向中央部を支持する矩形板状の底壁１１と、底壁１１の外縁の一部（一側縁）に連なって立設される隔壁１３と、隔壁１３に設けられる係止部１５と、底壁１１に垂設される円柱状の第１突起２１と、第１突起２１を通る直線を挟んで線対称となるように底壁１１に垂設される第２突起２３及び第３突起２５と、バスバー保持構造を構成している。   Each bus bar 6 is held by the bus bar holding part 10 of the electric wire arrangement 20. The bus bar holding portion 10 includes a rectangular plate-like bottom wall 11 that supports the central portion in the longitudinal direction of the bus bar 6, a partition wall 13 that stands up to a part (one side edge) of the outer edge of the bottom wall 11, and a partition wall 13 is suspended from the bottom wall 11 so as to be line-symmetric with respect to a straight line passing through the first protrusion 21 and a locking portion 15 provided on the bottom wall 11. The second protrusion 23 and the third protrusion 25 are configured as a bus bar holding structure.

下端が底壁１１の一側縁に連なった隔壁１３は、上端が連結部８の先端に連なっている。隔壁１３の上端には、後述する電圧検出用端子９の位置決め孔１００に嵌合する位置決めピン８５が突設されている。
係止部１５は、バスバー６の一側縁を電線配索体２０に係止するため隔壁１３に設けられ、底壁１１側に小さく突出する爪状のバスバー係止突起１５ａが先端に形成された係止ランスである。この係止部１５は、底壁１１の位置に合わせて配置形成され、底壁１１から壁高さ方向にバスバー６の厚み分だけ離れた位置にバスバー係止突起１５ａが配置形成される。即ち、係止部１５は、底壁１１に対するバスバー係止突起１５ａの高さ寸法が設定される。 In the partition wall 13 whose lower end is connected to one side edge of the bottom wall 11, the upper end is connected to the tip of the connecting portion 8. At the upper end of the partition wall 13, a positioning pin 85 is provided so as to fit into a positioning hole 100 of the voltage detection terminal 9 described later.
The locking portion 15 is provided on the partition wall 13 to lock one side edge of the bus bar 6 to the electric cable routing body 20, and has a claw-shaped bus bar locking protrusion 15 a that protrudes small toward the bottom wall 11 side. A locking lance. The locking portion 15 is arranged and formed in accordance with the position of the bottom wall 11, and a bus bar locking projection 15 a is arranged and formed at a position separated from the bottom wall 11 by the thickness of the bus bar 6 in the wall height direction. That is, the height of the bus bar locking projection 15a relative to the bottom wall 11 is set in the locking portion 15.

底壁１１に垂設された第１突起２１は、円柱状に形成されてバスバー６に形成された貫通孔６１に嵌合される。バスバー６の貫通孔６１は、円形の開口形状を有する。
そして、第１突起２１に対するバスバー６の傾き角度を制限してバスバー６の一側縁に対するバスバー係止突起１５ａの係止が外れないように、第１突起２１と貫通孔６１との嵌合隙間が設定される。 The first protrusion 21 that is suspended from the bottom wall 11 is formed in a cylindrical shape and is fitted into a through hole 61 formed in the bus bar 6. The through hole 61 of the bus bar 6 has a circular opening shape.
Then, the fitting gap between the first protrusion 21 and the through hole 61 is such that the inclination angle of the bus bar 6 with respect to the first protrusion 21 is limited so that the bus bar locking protrusion 15a is not unlocked with respect to one side edge of the bus bar 6. Is set.

即ち、第１突起２１の外径寸法と貫通孔６１の内径寸法とを適宜設定することで、第１突起２１と貫通孔６１との嵌合隙間が決定され、第１突起２１に対するバスバー６の傾き角度が規定される。更に、底壁１１に対するバスバー係止突起１５ａの高さ寸法が設定されることで、バスバー６が傾いた際のバスバー係止突起１５ａに対するバスバー６の一側縁におけるかかり代が確保されるので、バスバー６はバスバー保持部１０から外れることがない。   That is, by appropriately setting the outer diameter dimension of the first protrusion 21 and the inner diameter dimension of the through hole 61, a fitting gap between the first protrusion 21 and the through hole 61 is determined, and the bus bar 6 with respect to the first protrusion 21 is determined. A tilt angle is defined. Furthermore, since the height dimension of the bus bar locking projection 15a with respect to the bottom wall 11 is set, a margin at one side edge of the bus bar 6 with respect to the bus bar locking projection 15a when the bus bar 6 is tilted is secured. The bus bar 6 does not come off the bus bar holding part 10.

このようなバスバー保持構造によれば、バスバー保持部１０における底壁１１に垂設される第１突起２１とバスバー６に形成される貫通孔６１との嵌合隙間を設定すると共に、底壁１１に対する係止部１５におけるバスバー係止突起１５ａの高さ寸法を設定するだけで、バスバー６を電線配索体２０に保持することができる。
そこで、電線配索体２０にはバスバー６を囲む周壁が必要なく、小型化が可能となっている。また、バスバー６を底壁１１に当接するまで挿入する際に挿入抵抗となる係止部１５が１つしかない為、従来に比べてバスバー６の挿入力が低減されている。 According to such a bus bar holding structure, the fitting gap between the first protrusion 21 suspended from the bottom wall 11 in the bus bar holding portion 10 and the through hole 61 formed in the bus bar 6 is set, and the bottom wall 11 The bus bar 6 can be held on the electric cable routing body 20 only by setting the height dimension of the bus bar locking projection 15a in the locking portion 15 with respect to.
Therefore, the electric wire routing body 20 does not require a peripheral wall surrounding the bus bar 6 and can be miniaturized. In addition, since the bus bar 6 has only one locking portion 15 that serves as an insertion resistance when inserted until the bus bar 6 comes into contact with the bottom wall 11, the insertion force of the bus bar 6 is reduced as compared with the conventional case.

更に、第１突起２１を通る直線を挟んで線対称となるように底壁１１に垂設された第２突起２３と第３突起２５は、図２に示すように、バスバー６の対向する長辺部に形成された一対の係合部６３にそれぞれ係合される。第２突起２３は、底壁１１の先端縁側に垂設されており、底壁１１の基端側に垂設された第３突起２５は、隔壁１３と一体に形成されている。一対の係合部６３が第２突起２３と第３突起２５に係合したバスバー６は、円柱状の第１突起２１を中心とする回転が規制され、位置決めが確実にされる。   Further, the second protrusions 23 and the third protrusions 25 suspended from the bottom wall 11 so as to be symmetrical with respect to the straight line passing through the first protrusions 21 are opposite to each other as shown in FIG. The pair is engaged with a pair of engaging portions 63 formed on the side portions. The second protrusion 23 is suspended from the distal end edge side of the bottom wall 11, and the third protrusion 25 suspended from the base end side of the bottom wall 11 is formed integrally with the partition wall 13. The bus bar 6 in which the pair of engaging portions 63 are engaged with the second protrusion 23 and the third protrusion 25 is restricted from rotating around the columnar first protrusion 21, and positioning is ensured.

隔壁１３の上端に連なる連結部８には、電圧検出線Ｗの一端に接続された電圧検出用端子９が配置される。連結部８は、対向する一対の側壁８１Ａ，８１Ｂにより、電圧検出用端子９の電線接続部９３を収容する収容空間を形成している。側壁８１Ａ，８１Ｂの上端縁には、対向する他方の側壁８１Ｂ，８１Ａ側へ向って水平に突出された一対の端子抑え部８３Ａ，８３Ｂが一体に形成されている。端子抑え部８３Ａ，８３Ｂは、各連結部８の長手方向における略中間部に形成されており、連結部８に収容した電圧検出用端子９の電線接続部９３の浮き上りを抑え、収容作業を高めるためのものである。   A voltage detection terminal 9 connected to one end of the voltage detection line W is disposed at the connecting portion 8 connected to the upper end of the partition wall 13. The connecting portion 8 forms an accommodating space for accommodating the electric wire connecting portion 93 of the voltage detecting terminal 9 by a pair of opposing side walls 81A and 81B. A pair of terminal holding portions 83A and 83B are formed integrally with the upper end edges of the side walls 81A and 81B so as to protrude horizontally toward the opposite side wall 81B and 81A. The terminal holding portions 83A and 83B are formed at a substantially intermediate portion in the longitudinal direction of each connecting portion 8, and suppress the lifting of the wire connecting portion 93 of the voltage detection terminal 9 housed in the connecting portion 8 to perform the housing operation. It is for raising.

本実施形態の電圧検出用端子９は、図３の（ａ），（ｂ）に示すように、バスバー６に溶接接続される電気接続部９１と、電圧検出線Ｗが接続される電線接続部９３と、電気接続部９１と電線接続部９３との間に設けられ、バスバー保持部１０に仮固定される仮固定部９９と、を備えた断面クランク状に形成されている。
電気接続部９１は、矩形平板状に形成され、レーザ溶接等によりバスバー６の上面に溶接接続される。電線接続部９３は、電圧検出線Ｗの端末における絶縁被覆を剥いて露出させた心線を圧着する導体圧着部９４と、絶縁被覆の上から電線端末を圧着する被覆圧着部９２とを有する。 As shown in FIGS. 3A and 3B, the voltage detection terminal 9 of the present embodiment includes an electrical connection portion 91 welded to the bus bar 6 and a wire connection portion to which the voltage detection line W is connected. 93 and a temporary fixing portion 99 provided between the electric connection portion 91 and the electric wire connection portion 93 and temporarily fixed to the bus bar holding portion 10.
The electrical connection portion 91 is formed in a rectangular flat plate shape and is welded to the upper surface of the bus bar 6 by laser welding or the like. The wire connecting portion 93 includes a conductor crimping portion 94 that crimps the exposed core wire by stripping the insulation coating at the end of the voltage detection line W, and a coating crimping portion 92 that crimps the wire terminal from above the insulation coating.

仮固定部９９は、電線接続部９３に隣接した平板部に形成されて位置決めピン８５が嵌合される位置決め孔１００と、断面クランク状に形成された電圧検出用端子９の立ち上がり壁９５に設けられた抜け止め部９６と、を有している。   The temporary fixing portion 99 is provided in a positioning hole 100 formed in a flat plate portion adjacent to the wire connection portion 93 and fitted with the positioning pin 85, and a rising wall 95 of the voltage detecting terminal 9 formed in a crank shape in cross section. And a retaining portion 96 that has been removed.

位置決め孔１００は、円柱状に形成された位置決めピン８５が嵌合する円形の開口形状を有する。そこで、仮固定部９９の両側縁が連結部８の側壁８１Ａ，８１Ｂ間で挟持され、仮固定部９９の位置決め孔１００がバスバー保持部１０の位置決めピン８５に嵌合された電圧検出用端子９は、バスバー保持部１０に位置決めされる。   The positioning hole 100 has a circular opening shape into which a positioning pin 85 formed in a cylindrical shape is fitted. Therefore, both side edges of the temporary fixing portion 99 are sandwiched between the side walls 81A and 81B of the connecting portion 8 and the positioning hole 100 of the temporary fixing portion 99 is fitted to the positioning pin 85 of the bus bar holding portion 10. Is positioned on the bus bar holding portion 10.

また、抜け止め部９６は、位置決めピン８５と平行に配置される立ち上がり壁９５に形成された切り起し片であり、隔壁１３の底壁１１側へ位置決めピン８５と直交する方向に突出した係止突起１７に係止されることで、位置決めピン８５に対する反嵌入方向（抜け出し方向）の仮固定部９９の移動を規制する。そこで、仮固定部９９の抜け止め部９６がバスバー保持部１０の係止突起１７に係止された電圧検出用端子９は、バスバー保持部１０の位置決めピン８５に対して抜け止め（ロック）される。なお、抜け止め部９６は、切り起し片に限らず、係止突起１７が嵌合して係止される開口部でもよい。   The retaining portion 96 is a cut-and-raised piece formed on the rising wall 95 arranged in parallel with the positioning pin 85, and is a member protruding in the direction perpendicular to the positioning pin 85 toward the bottom wall 11 of the partition wall 13. By being locked to the stop protrusion 17, the movement of the temporary fixing portion 99 in the counter-insertion direction (extraction direction) relative to the positioning pin 85 is restricted. Therefore, the voltage detection terminal 9 in which the retaining portion 96 of the temporary fixing portion 99 is locked to the locking protrusion 17 of the bus bar holding portion 10 is prevented from being locked (locked) to the positioning pin 85 of the bus bar holding portion 10. The The retaining portion 96 is not limited to the cut and raised piece, and may be an opening portion into which the retaining projection 17 is fitted and locked.

そこで、電圧検出用端子９は、仮固定部９９がバスバー保持部１０に対して位置決めピン８５により位置決めされると共に、係止突起１７により抜け止めされた仮固定状態となる。
なお、位置決めピン８５の断面形状と位置決め孔１００の開口形状は円形にされたが、本発明はこれに限らず、多角形や楕円形等の種々の形状を採りうる。即ち、断面非円形の位置決めピンに嵌合する位置決め孔の開口形状を位置決めピンの断面形状に対応した非円形とすることで、連結部８の側壁８１Ａ，８１Ｂに挟持されることなく電圧検出用端子９の位置決めピンを中心とした回転を規制することができる。 Thus, the voltage detection terminal 9 is in a temporarily fixed state in which the temporary fixing portion 99 is positioned by the positioning pin 85 with respect to the bus bar holding portion 10 and is prevented from being detached by the locking protrusion 17.
Although the cross-sectional shape of the positioning pin 85 and the opening shape of the positioning hole 100 are circular, the present invention is not limited to this, and various shapes such as a polygon and an ellipse can be adopted. That is, the opening shape of the positioning hole that fits the positioning pin having a non-circular cross-section is a non-circular shape corresponding to the cross-sectional shape of the positioning pin, so that it can be used for voltage detection without being sandwiched between the side walls 81A and 81B of the connecting portion 8. The rotation of the terminal 9 around the positioning pin can be restricted.

電線配索部７は、矩形板状の底壁７３と、該底壁７３の幅方向に相対する両縁部から垂直に立設した一対の側壁７５Ａ，７５Ｂと、からなる断面略Ｕ字状の樋形状に形成されている。
電線配索部７は、バスバー保持部１０の並び方向に沿った一側縁に設けられ、連結部８を介して各バスバー保持部１０に接続されている。そこで、電線配索部７は、各連結部８から導出される電圧検出線Ｗを単電池３の重なり方向に沿って配索する配索空間となる。 The electric cable routing portion 7 has a substantially U-shaped cross section including a rectangular plate-like bottom wall 73 and a pair of side walls 75A and 75B that are erected vertically from both edge portions facing the width direction of the bottom wall 73. It is formed in a bowl shape.
The electric wire routing portion 7 is provided on one side edge along the direction in which the bus bar holding portions 10 are arranged, and is connected to each bus bar holding portion 10 via a connecting portion 8. Therefore, the electric wire routing portion 7 becomes a routing space for routing the voltage detection line W led out from each connecting portion 8 along the overlapping direction of the unit cells 3.

なお、電線配索部７には、側壁７５Ａ，７５Ｂの上端縁に電線抑え部を一体に形成してもよい。また、上方開口を塞ぐように矩形板状の蓋部が被せられてもよい。蓋部は、両縁部（長辺部）のうち一方の縁部の一部がヒンジを介して、電線配索部７の一方の側壁７５Ａに回動可能に連設される。   In addition, you may integrally form the electric wire holding part in the upper end edge of side wall 75A, 75B in the electric wire wiring part 7. As shown in FIG. In addition, a rectangular plate-shaped lid may be covered so as to close the upper opening. A part of one edge part among both edge parts (long side part) is continuously connected to one side wall 75A of the electric wire wiring part 7 via a hinge so that a cover part can rotate.

電線配索部７の配索空間に配索される電線としての電圧検出線Ｗは、導体である心線を絶縁被覆で被覆した被覆電線である。電圧検出線Ｗは、その一端において、電圧検出用端子９の電線接続部９３に圧着されている。電圧検出線Ｗの他端は、図示しない電圧検出回路に接続される。
なお、本発明に係る電線は、本実施形態の被覆電線に限らず、導体である単線を絶縁被覆で被覆したものや、フラットケーブルなど種々の電線を用いることができる。 The voltage detection line W as an electric wire arranged in the arrangement space of the electric wire arrangement part 7 is a covered electric wire in which a core wire which is a conductor is covered with an insulating coating. The voltage detection line W is crimped to the electric wire connection portion 93 of the voltage detection terminal 9 at one end thereof. The other end of the voltage detection line W is connected to a voltage detection circuit (not shown).
In addition, the electric wire which concerns on this invention can use not only the covered electric wire of this embodiment but various electric wires, such as what coat | covered the single wire which is a conductor with the insulation coating, and a flat cable.

上述したように本実施形態のバスバーモジュール１における電圧検出用端子９の保持構造によれば、電圧検出用端子９の仮固定部９９がバスバー保持部１０に仮固定されるので、バスバー６を囲む周壁に電圧検出用端子９を仮固定するための固定部を設ける必要がなくなる。その結果、図1及び図２に示したように、電線配索体２０はバスバー保持部１０における周壁を省略することができ、電線配索体２０の小型化が可能となる。
また、電圧検出用端子９は、電気接続部９１の側縁を周壁に仮固定させる必要がなくなるので、電気接続部９１をバスバー６との電気的接続に必要な必要最小限の大きさとして小型化できる。 As described above, according to the holding structure of the voltage detection terminal 9 in the bus bar module 1 of the present embodiment, the temporary fixing portion 99 of the voltage detection terminal 9 is temporarily fixed to the bus bar holding portion 10, so that the bus bar 6 is surrounded. There is no need to provide a fixing portion for temporarily fixing the voltage detection terminal 9 on the peripheral wall. As a result, as shown in FIGS. 1 and 2, the electric wire routing body 20 can omit the peripheral wall of the bus bar holding portion 10, and the electric wire routing body 20 can be downsized.
Further, the voltage detection terminal 9 does not need to temporarily fix the side edge of the electrical connection portion 91 to the peripheral wall, so that the electrical connection portion 91 is reduced to the minimum necessary size for electrical connection with the bus bar 6. Can be

更に、本実施形態のバスバーモジュール１における電圧検出用端子９の保持構造によれば、電圧検出用端子９の仮固定部９９に設けた位置決め孔１００が、バスバー保持部１０の位置決めピン８５に嵌合することで、電圧検出用端子９の仮固定位置を正確に位置決めできる。
また、電圧検出用端子９は、電気接続部９１の側縁を周壁の位置決めリブに当接させて位置決めする必要がなくなるので、電気接続部９１をバスバー６との電気的接続に必要な必要最小限の大きさとして小型化できる。 Furthermore, according to the holding structure of the voltage detection terminal 9 in the bus bar module 1 of the present embodiment, the positioning hole 100 provided in the temporary fixing portion 99 of the voltage detection terminal 9 is fitted into the positioning pin 85 of the bus bar holding portion 10. By combining, the temporarily fixed position of the voltage detection terminal 9 can be accurately positioned.
Further, the voltage detection terminal 9 does not need to be positioned by bringing the side edge of the electrical connection portion 91 into contact with the positioning ribs on the peripheral wall, so that the electrical connection portion 91 is the minimum necessary for electrical connection with the bus bar 6. It can be miniaturized as the limit size.

また、本実施形態のバスバーモジュール１における電圧検出用端子９の保持構造によれば、電圧検出用端子９の位置決め孔１００がバスバー保持部１０の位置決めピン８５に嵌入される方向と、立ち上がり壁９５に設けられた抜け止め部９６がバスバー保持部１０に抜け止め（ロック）される方向とが同一方向となる為、組付け作業性が向上して製造コストが安くなる。   In addition, according to the holding structure of the voltage detection terminal 9 in the bus bar module 1 of the present embodiment, the direction in which the positioning hole 100 of the voltage detection terminal 9 is inserted into the positioning pin 85 of the bus bar holding portion 10 and the rising wall 95. Since the retaining portion 96 provided in the same direction as the retaining portion (locked) to the bus bar holding portion 10 is the same direction, the assembly workability is improved and the manufacturing cost is reduced.

従って、上記実施形態の電圧検出用端子９の保持構造によれば、バスバー保持部１０に対する電圧検出用端子９の位置決め等を確実にしつつ無駄な部分を削減し、電線配索体２０を小型・軽量化して製造コストを低減できる。   Therefore, according to the holding structure of the voltage detection terminal 9 of the above-described embodiment, it is possible to reduce the useless portion while ensuring the positioning of the voltage detection terminal 9 with respect to the bus bar holding portion 10 and to reduce the size of the electric cable routing body 20. The manufacturing cost can be reduced by reducing the weight.

ここで、上述した本発明に係る電圧検出用端子の保持構造の実施形態の特徴をそれぞれ以下に簡潔に纏めて列記する。
［１］ 複数の単電池（３）で構成された電池集合体（２）の各単電池を互いに電気的に接続する複数のバスバー（６）が収容される絶縁樹脂製の電線配索体（２０）のバスバー保持部（１０）に、前記単電池の電圧を測定するための電圧検出用端子（９）が保持される電圧検出用端子の保持構造であって、
前記電圧検出用端子は、
前記バスバーに接続される電気接続部（９１）と、
電線（電圧検出線Ｗ）が接続される電線接続部（９３）と、
前記電気接続部と前記電線接続部との間に設けられ、前記バスバー保持部に仮固定される仮固定部（９９）と、
を備えることを特徴とする電圧検出用端子の保持構造。
［２］ 前記仮固定部（９９）が、前記バスバー保持部（１０）に突設された位置決めピン（８５）に嵌合する位置決め孔（１００）を有することを特徴とする上記［１］に記載の電圧検出用端子の保持構造。
［３］ 前記電圧検出用端子（９）は、前記電気接続部（９１）と前記電線接続部（９３）との間に立ち上がり壁（９５）を有する断面クランク状に形成され、
前記仮固定部（９９）は、前記立ち上がり壁に設けられ、前記位置決めピン（８５）に対する反嵌入方向の移動が規制される抜け止め部（９６）を有することを特徴とする上記［２］に記載の電圧検出用端子の保持構造。 Here, the characteristics of the embodiments of the voltage detection terminal holding structure according to the present invention described above are briefly summarized and listed below.
[1] A wire arrangement (made of insulating resin) in which a plurality of bus bars (6) for electrically connecting the individual cells of the battery assembly (2) composed of the plurality of single cells (3) are accommodated. 20) a bus bar holding portion (10), and a voltage detection terminal holding structure in which a voltage detection terminal (9) for measuring the voltage of the unit cell is held;
The voltage detection terminal is
An electrical connection (91) connected to the bus bar;
An electric wire connection part (93) to which an electric wire (voltage detection line W) is connected;
A temporary fixing part (99) provided between the electric connection part and the electric wire connection part and temporarily fixed to the bus bar holding part;
A structure for holding a voltage detection terminal.
[2] In the above [1], the temporary fixing portion (99) includes a positioning hole (100) that fits into a positioning pin (85) projecting from the bus bar holding portion (10). The voltage detection terminal holding structure described.
[3] The voltage detection terminal (9) is formed in a cross-sectional crank shape having a rising wall (95) between the electrical connection portion (91) and the wire connection portion (93).
In the above [2], the temporary fixing portion (99) includes a retaining portion (96) that is provided on the rising wall and is restricted from moving in the counter-insertion direction with respect to the positioning pin (85). The voltage detection terminal holding structure described.

なお、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。   In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

１…バスバーモジュール
２…電池集合体
３…単電池
６…バスバー
７…電線配索部
８…連結部
９…電圧検出用端子
１０…バスバー保持部
１１…底壁
１３…隔壁
１５…係止部
２０…電線配索体
８５…位置決めピン
９１…電気接続部
９３…電線接続部
９５…立ち上がり壁
９６…抜け止め部
９９…仮固定部
１００…位置決め孔 DESCRIPTION OF SYMBOLS 1 ... Bus bar module 2 ... Battery assembly 3 ... Cell 6 ... Bus bar 7 ... Electric wire routing part 8 ... Connection part 9 ... Voltage detection terminal 10 ... Bus bar holding part 11 ... Bottom wall 13 ... Septum 15 ... Locking part 20 ... electric wire arrangement body 85 ... positioning pin 91 ... electric connection part 93 ... electric wire connection part 95 ... rising wall 96 ... retaining part 99 ... temporary fixing part 100 ... positioning hole

Claims (3)

複数の単電池で構成された電池集合体の各単電池を互いに電気的に接続する複数のバスバーが収容される絶縁樹脂製の電線配索体のバスバー保持部に、前記単電池の電圧を測定するための電圧検出用端子が保持される電圧検出用端子の保持構造であって、
前記電圧検出用端子は、
前記バスバーに接続される電気接続部と、
電線が接続される電線接続部と、
前記電気接続部と前記電線接続部との間に設けられ、前記バスバー保持部に仮固定される仮固定部と、
を備えることを特徴とする電圧検出用端子の保持構造。 The voltage of the unit cell is measured on the bus bar holding portion of the insulated resin wire arrangement body that accommodates the plurality of bus bars that electrically connect the unit cells of the battery assembly composed of the unit cells. A voltage detection terminal holding structure in which a voltage detection terminal for holding is held,
The voltage detection terminal is
An electrical connection connected to the bus bar;
A wire connection part to which the wire is connected;
A temporary fixing portion provided between the electric connection portion and the electric wire connection portion, and temporarily fixed to the bus bar holding portion;
A structure for holding a voltage detection terminal. 前記仮固定部が、前記バスバー保持部に突設された位置決めピンに嵌合する位置決め孔を有することを特徴とする請求項１に記載の電圧検出用端子の保持構造。   The voltage detection terminal holding structure according to claim 1, wherein the temporary fixing portion has a positioning hole that fits into a positioning pin protruding from the bus bar holding portion. 前記電圧検出用端子は、前記電気接続部と前記電線接続部との間に立ち上がり壁を有する断面クランク状に形成され、
前記仮固定部は、前記立ち上がり壁に設けられ、前記位置決めピンに対する反嵌入方向の移動が規制される抜け止め部を有することを特徴とする請求項２に記載の電圧検出用端子の保持構造。 The voltage detection terminal is formed in a cross-sectional crank shape having a rising wall between the electrical connection portion and the wire connection portion,
3. The voltage detection terminal holding structure according to claim 2, wherein the temporary fixing portion includes a retaining portion that is provided on the rising wall and is restricted from moving in a counter-insertion direction with respect to the positioning pin.
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