JP2017107721A

JP2017107721A - Wiring module

Info

Publication number: JP2017107721A
Application number: JP2015240246A
Authority: JP
Inventors: 洋樹下田; Hiroki Shimoda; 慎一高瀬; Shinichi Takase; 暢之松村; Nobuyuki Matsumura; 良典伊藤; Yoshinori Ito; 秀夫高橋; Hideo Takahashi
Original assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Current assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Priority date: 2015-12-09
Filing date: 2015-12-09
Publication date: 2017-06-15

Abstract

PROBLEM TO BE SOLVED: To prevent strength of a cover from being deteriorated, and to make dust-proof measures effective.SOLUTION: This wiring module M provided in a cell group 10 comprising a plurality of cells 11 having electrode terminals 12 of positive electrodes and negative electrodes includes an insulation protector 30 provided with a bus bar housing part 73 in which a plurality of bus bars 20 mounted to one side of the cell group 10 for connecting the electrode terminals 12 adjacent to each other are housed side by side in a line, and a wire arranging groove 74 in which a detection wire 25 taken out from each of the bus bars 20 is arranged, and a housing section cover 100 for closing the opening of the bus bar housing part 73 in the insulation protector 30. A locking part 80 elastically locked to the side fringe 101 of the housing section cover 100 is provided at the opening fringe of the bus bar housing part 73 in the insulation protector 30.SELECTED DRAWING: Figure 14

Description

本明細書によって開示される技術は、配線モジュールに関する。 The technique disclosed by this specification is related with a wiring module.

正極及び負極の電極端子を有する複数の単電池からなる単電池群に設けられる配線モジュールの一例として、下記特許文献１に記載されたものが知られている。特許文献１には、隣り合う電極端子を接続するバスバーが複数個一列に並んで収容されるバスバー収容部と、各バスバーから引き出された検知電線を収容する電線配索溝とが設けられた絶縁プロテクタを備え、同絶縁プロテクタの開口面を絶縁性のカバーで閉鎖した構造が開示されている。
ここで、カバーを閉鎖状態に保持する手段としては、絶縁プロテクタから係止爪を立ち上げ、同係止爪をカバーに開口した係止孔を貫通して表面側の孔縁に係止することで閉鎖状態にロックする構造となっている。 As an example of a wiring module provided in a unit cell group including a plurality of unit cells having positive and negative electrode terminals, one described in Patent Document 1 below is known. In Patent Document 1, an insulation provided with a bus bar housing portion in which a plurality of bus bars for connecting adjacent electrode terminals are housed in a line and a wire routing groove for housing a detection wire drawn from each bus bar There is disclosed a structure including a protector and having an opening surface of the insulating protector closed with an insulating cover.
Here, as means for holding the cover in a closed state, a locking claw is raised from the insulation protector, and the locking claw penetrates a locking hole opened in the cover and is locked to the hole edge on the surface side. It has a structure that locks in a closed state.

特開２０１２−２４３６０８号公報JP 2012-243608 A

しかしながら上記した保持する手段では、カバーに係止孔を開ける必要があるために、カバーの強度低下を招く嫌いがあり、また防塵の面からも芳しくないため、その改良が切望されていた。
本明細書によって開示される技術は、上記のような事情に基づいて完成されたものである。 However, since the holding means described above needs to be provided with a locking hole in the cover, there is a dislike of reducing the strength of the cover, and it is not good from the viewpoint of dust proofing.
The technology disclosed in this specification has been completed based on the above situation.

本明細書によって開示される技術は、正極及び負極の電極端子を有する複数の蓄電素子からなる蓄電素子群に設けられる配線モジュールであって、前記蓄電素子群の一面に装着され、隣り合う前記電極端子を接続するバスバーが複数個一列に並んで収容されるバスバー収容部と、前記バスバーのそれぞれから引き出された検知電線が配索される電線配索溝とが設けられた絶縁プロテクタと、前記絶縁プロテクタにおける前記バスバー収容部の開口を閉鎖する収容部カバーと、が具備され、前記絶縁プロテクタにおける前記バスバー収容部の開口縁には、前記収容部カバーの側縁に弾性的に係止する係止部が設けられている構成である。 The technology disclosed in this specification is a wiring module provided in a power storage element group including a plurality of power storage elements having positive and negative electrode terminals, and is mounted on one surface of the power storage element group and adjacent to the electrode Insulation protector provided with a bus bar housing portion in which a plurality of bus bars for connecting terminals are accommodated in a line, a wire routing groove in which a detection wire drawn from each of the bus bars is routed, and the insulation A housing part cover for closing the opening of the bus bar housing part in the protector, and an opening edge of the bus bar housing part in the insulation protector that elastically latches to a side edge of the housing part cover It is the structure by which the part is provided.

上記構成では、収容部カバーがバスバー収容部の開口に被せられると、開口縁から立ち上がった係止部が収容部カバーの側縁に弾性的に係止することで、収容部カバーが閉鎖状態に保持される。収容部カバーを閉鎖状態に保持するに当たり、収容部カバーに係止孔を開口することを回避したから、収容部カバーの強度低下を防止し得るとともに、防塵対策にも有効となる。 In the above configuration, when the accommodating portion cover is put on the opening of the bus bar accommodating portion, the engaging portion rising from the opening edge is elastically engaged with the side edge of the accommodating portion cover, so that the accommodating portion cover is in a closed state. Retained. In holding the housing portion cover in the closed state, it is possible to prevent the strength of the housing portion cover from being lowered and to prevent dust from being prevented, since opening of the locking hole in the housing portion cover is avoided.

また、以下のような構成としてもよい。
前記絶縁プロテクタには、前記電線配索溝を開閉する電線カバーがヒンジ部を介して回動可能に設けられるとともに、前記電線カバーと係合して同電線カバーを閉鎖位置にロックするロック部が設けられており、かつ閉鎖位置にロックされた前記電線カバーの回動端部が、閉鎖位置に係止された前記収容部カバーで押さえられる。
電線カバーが閉鎖位置にロックされたのち、収容部カバーが閉鎖位置に保持されることに伴い、同収容部カバーが電線カバーの回動端部を押さえ、その結果電線カバーが二重係止された状態となる。電線カバーがヒンジ部を介したものでありながらも、より確実に閉鎖位置に保持される。 The following configuration may also be used.
The insulation protector is provided with a wire cover that opens and closes the wire routing groove so as to be rotatable via a hinge portion, and a lock portion that engages with the wire cover and locks the wire cover in a closed position. The rotating end portion of the electric wire cover that is provided and locked in the closed position is pressed by the housing portion cover that is locked in the closed position.
After the electric wire cover is locked in the closed position, the accommodating portion cover holds the rotating end of the electric wire cover as the holding portion cover is held in the closed position, and as a result, the electric wire cover is double-locked. It becomes a state. Although the electric wire cover is via the hinge portion, it is more reliably held in the closed position.

前記収容部カバーの裏面と前記電線カバーの表面のいずれか一方には凹部が設けられるとともに、いずれか他方には前記凹部に嵌合する凸部が設けられ、互いに嵌合された前記凹部と前記凸部とにより前記収容部カバーの横ずれを規制する位置決め部が形成されている。収容部カバーが横ずれすることが規制されるために、係止部の不必要な変形が抑制され、係止強度が確保される。凹凸嵌合した位置決め部がラビリンス構造を呈することで、防塵等により有効となる。 A concave portion is provided on one of the back surface of the housing portion cover and the front surface of the electric wire cover, and a convex portion that fits into the concave portion is provided on either one of the concave portion and the concave portion that are fitted to each other. A positioning portion for restricting lateral displacement of the housing portion cover is formed by the convex portion. Since the lateral displacement of the housing portion cover is restricted, unnecessary deformation of the locking portion is suppressed and locking strength is ensured. The positioning portion with the concave and convex fitting exhibits a labyrinth structure, which is effective for dust prevention and the like.

前記絶縁プロテクタは、前記バスバー収容部の一部と前記電線配索溝の一部とが設けられた分割プロテクタが複数直接的または間接的に連結された構造であり、前記電線カバーは前記分割プロテクタごとに分割された形態で設けられている一方、前記収容部カバーは前記バスバー収容部を全域に亘って閉鎖可能な単一物として形成されている。
収容部カバーは単一物としたから、分割プロテクタの連結長さにばらつきが出たとしても、バスバー収容部を全長に亘って確実に閉鎖できる。 The insulation protector has a structure in which a plurality of split protectors provided with a part of the bus bar housing part and a part of the wire routing groove are connected directly or indirectly, and the wire cover is formed of the split protector. On the other hand, the housing portion cover is formed as a single object capable of closing the bus bar housing portion over the entire area.
Since the housing portion cover is a single object, the bus bar housing portion can be reliably closed over the entire length even if the connection length of the divided protectors varies.

前記バスバーには前記検知電線の端末を接続した電線接続部が設けられており、前記電線カバーの裏面には、同電線カバーが閉鎖位置にある状態において、前記バスバーの前記電線接続部の直近に対向する検知部が設けられている。
バスバーが正規姿勢で収容されておらず、電線接続部側が浮いた状態に留められていると、電線カバーが閉鎖位置側に回動されたときに検知部が浮いた電線接続部に当たって閉鎖できず、これによりバスバーの装着不良が検知される。 The bus bar is provided with an electric wire connecting portion to which the terminal of the detection electric wire is connected, and the back surface of the electric wire cover is in a state where the electric wire cover is in a closed position, in the vicinity of the electric wire connecting portion of the bus bar. Opposing detection units are provided.
If the bus bar is not housed in a normal position and the wire connection side is kept in a floating state, when the wire cover is turned to the closed position, the detection unit will not be able to close due to the floating wire connection. As a result, a defective mounting of the bus bar is detected.

本明細書によって開示される配線モジュールによれば、収容部カバーの強度低下を防止し得るとともに、防塵対策にも有効となる。 According to the wiring module disclosed in the present specification, it is possible to prevent the strength of the housing cover from being lowered, and it is also effective as a dust-proof measure.

実施形態に係る収容部カバーの閉鎖前の状態の斜視図The perspective view of the state before closure of the accommodating part cover which concerns on embodiment 同平面図Plan view 同正面図Front view 同拡大側面図Same side view 図３のV−V線拡大断面図3 is an enlarged cross-sectional view taken along line VV in FIG. 電線カバーの閉鎖途中の側面図Side view during closing of wire cover 同断面図Cross section 電線カバーが閉鎖された状態の斜視図Perspective view with the wire cover closed 同平面図Plan view 同正面図Front view 同拡大側面図Same side view 図１０のXII−XII線拡大断面図XII-XII line enlarged sectional view of FIG. 図１０のXIII−XIII線拡大断面図XIII-XIII line enlarged sectional view of FIG. 収容部カバーの装着動作を示す斜視図The perspective view which shows mounting | wearing operation | movement of an accommodating part cover 収容部カバーが閉鎖された状態の斜視図A perspective view of a state in which the housing cover is closed 同平面図Plan view 同正面図Front view 同拡大側面図Same side view 図１６のXIX−XIX線断面図XIX-XIX sectional view of FIG. 図１７のXX−XX線拡大断面図XX-XX line enlarged sectional view of FIG. 図１７のXXI−XXI線拡大断面図XXI-XXI line enlarged sectional view of FIG.

＜実施形態＞
実施形態を図１ないし図２１によって説明する。本実施形態に係る配線モジュールＭは、正極及び負極の電極端子１２を有する複数の単電池１１（蓄電素子の一例）を並べてなる単電池群１０（図９参照）の上面に装着され、各単電池１１を直列に電気接続して電池モジュールを構築することに適用されるものである。電極端子１２は、ボルト状をなして立ち上がって設けられている。 <Embodiment>
The embodiment will be described with reference to FIGS. The wiring module M according to the present embodiment is mounted on the upper surface of a unit cell group 10 (see FIG. 9) in which a plurality of unit cells 11 (an example of a storage element) having positive and negative electrode terminals 12 are arranged. The present invention is applied to constructing a battery module by electrically connecting batteries 11 in series. The electrode terminal 12 stands up in a bolt shape.

配線モジュールＭは一対が備えられ、単電池群１０の上面における一方と他方の側縁部にそれぞれ装着されるようになっている。以下には、一方の配線モジュールＭについて説明する。
配線モジュールＭは概ね、図１４に示すように、合成樹脂製の絶縁プロテクタ３０と、同絶縁プロテクタ３０に保持され、隣り合う単電池１１の電極端子１２（正極端子と負極端子）とを接続する複数のバスバー２０と、各バスバー２０に接続されて引き出された検知電線２５と、バスバー２０の保持部分を覆う収容部カバー１００とを備えて構成されている。 A pair of wiring modules M are provided, and are attached to one and the other side edge portions of the upper surface of the unit cell group 10, respectively. Hereinafter, one wiring module M will be described.
As shown in FIG. 14, the wiring module M is generally connected to the insulating protector 30 made of synthetic resin and the electrode terminals 12 (positive terminal and negative terminal) of the adjacent unit cells 11 held by the insulating protector 30. A plurality of bus bars 20, detection electric wires 25 connected to each bus bar 20 and drawn out, and a housing cover 100 that covers a holding portion of the bus bar 20 are configured.

バスバー２０は、導電性に優れた金属板をプレス加工して形成され、詳細には、図１及び図２に示すように、金属薄板を折り返した平面視略長方形の二重板から構成されている。バスバー２０には、一対の丸孔からなる貫通孔２１が所定の間隔を空けて形成されており、貫通孔２１には、単電池１１の電極端子１２がクリアランスを持って挿通可能となっている。
バスバー２０（詳細には下板）の一方の長辺における中央長さ位置には、図１３に示すように、ワイヤバレル２３とインシュレーションバレル２４とからなる電線接続部２２が、直角をなして一体的に形成されている。 The bus bar 20 is formed by pressing a metal plate having excellent conductivity. Specifically, as shown in FIGS. 1 and 2, the bus bar 20 is composed of a double plate having a substantially rectangular shape in plan view obtained by folding back a metal thin plate. Yes. A through hole 21 made of a pair of round holes is formed in the bus bar 20 at a predetermined interval, and the electrode terminal 12 of the unit cell 11 can be inserted into the through hole 21 with a clearance. .
As shown in FIG. 13, a wire connecting portion 22 composed of a wire barrel 23 and an insulation barrel 24 forms a right angle at the central length position on one long side of the bus bar 20 (specifically, the lower plate). It is integrally formed.

本実施形態に係る検知電線２５は、単電池１１の電圧を検知する。検知電線２５は被覆電線であって、その端末において皮剥ぎ処理が施されている。検知電線２５は、図１３に示すように、芯線２６の露出した端末が電線接続部２２のワイヤバレル２３に、残った被覆２７の端末がインシュレーションバレル２４にそれぞれかしめられることで、バスバー２０に電気的に接続され、同バスバー２０から引き出された形態を採るようになっている。 The detection electric wire 25 according to the present embodiment detects the voltage of the unit cell 11. The detection electric wire 25 is a covered electric wire, and is stripped at the terminal. As shown in FIG. 13, the end of the core wire 26 is caulked to the wire barrel 23 of the electric wire connection portion 22, and the remaining end of the covering 27 is caulked to the insulation barrel 24. It is electrically connected and takes the form pulled out from the bus bar 20.

絶縁プロテクタ３０について説明する。絶縁プロテクタ３０は、図１及び図２に示すように、図示３個の分割プロテクタ３１を連結して構成されている。３個の分割プロテクタ３１のうち、後側（図２の右側）の２個の分割プロテクタ３１は同一構造である一方、前端の分割プロテクタ３１Ｘについては、構造が一部異なっている。
以下、３個の分割プロテクタ３１に共通の構造を説明する場合は、「分割プロテクタ３１」として説明し、前端の分割プロテクタ３１Ｘに特有の構造については、「分割プロテクタ３１Ｘ」として別途説明する。 The insulation protector 30 will be described. As shown in FIGS. 1 and 2, the insulation protector 30 is configured by connecting three divided protectors 31 shown in the figure. Of the three divided protectors 31, the two divided protectors 31 on the rear side (the right side in FIG. 2) have the same structure, while the divided protector 31X at the front end is partially different.
Hereinafter, when a structure common to the three divided protectors 31 is described, it will be described as “divided protector 31”, and a structure unique to the divided protector 31X at the front end will be separately described as “divided protector 31X”.

分割プロテクタ３１は、図２に示すように、幅方向の右側（同図の上側）に、バスバー２０が上方から挿入されて収容される収容部３２が、左側（下側）に、検知電線２５が収容される収容溝４４が形成されている。
収容部３２は概ね角筒状に形成されており、共に一枚壁からなる右側壁３３及び前壁３４と、幅広の概ね二重壁からなる左側壁３５とを備える一方、後面は開放されている。左側壁３５は、前端側が前壁３４から前方に突出するようにずれて形成されている。ただし、前端の分割プロテクタ３１Ｘでは、左側壁３５の前端が前壁３４の位置に留まっている。 As shown in FIG. 2, the split protector 31 has a receiving portion 32 in which the bus bar 20 is inserted from the upper side on the right side in the width direction (upper side in the figure), and the detection wire 25 on the left side (lower side). A housing groove 44 is formed for housing the.
The accommodating portion 32 is formed in a generally rectangular tube shape, and includes a right side wall 33 and a front wall 34 both made of a single wall and a left side wall 35 made of a wide, generally double wall, while the rear surface is open. Yes. The left side wall 35 is formed so as to be shifted so that the front end side projects forward from the front wall 34. However, in the front end split protector 31 X, the front end of the left side wall 35 remains at the position of the front wall 34.

上記の左側壁３５は、収容部３２の長さ方向の中央部において所定間隔を開けて前後に分断され、長寸の前側の左側壁３５Ｆ（以下、前側左側壁３５Ｆ）内には、詳しくは後記する電線カバー６０をロックするロック部４５と、隣り合う分割プロテクタ３１同士を結合するための係合受け部７１が設けられている。左側壁３５の分断部分には、バスバー２０に突設された上記の電線接続部２２が上方から挿入される有底の接続部挿入溝３６が形成されている。 The left side wall 35 is divided into front and rear portions at a predetermined interval in the central portion in the length direction of the accommodating portion 32, and the left side wall 35F (hereinafter referred to as the front left side wall 35F) on the long front side is detailed in detail. A lock portion 45 that locks the electric wire cover 60 to be described later and an engagement receiving portion 71 for connecting the adjacent divided protectors 31 to each other are provided. A bottomed connection portion insertion groove 36 into which the wire connection portion 22 protruding from the bus bar 20 is inserted from above is formed in the divided portion of the left side wall 35.

収容部３２における右側壁３３と左側壁３５の対向面の下端には、図４に示すように、バスバー２０の長辺側の側縁を受ける受け縁３８が突出形成されているとともに、両受け縁３８の中央長さ位置の間に仕切板３９が差し渡されている（図１９参照）。右側壁３３と左側壁３５の対向面には、バスバー２０の長辺側の側縁の上面に弾性的に係止して抜け止めする弾性係止片４０が設けられている。 As shown in FIG. 4, a receiving edge 38 for receiving a side edge on the long side of the bus bar 20 is formed at the lower end of the opposing surface of the right side wall 33 and the left side wall 35 in the housing portion 32. A partition plate 39 is interposed between the central length positions of the edge 38 (see FIG. 19). On the opposing surfaces of the right side wall 33 and the left side wall 35, there are provided elastic locking pieces 40 that are elastically locked to the upper surface of the side edge of the long side of the bus bar 20 to prevent it from coming off.

左側壁３５の外面の下端には、図４に示すように、所定幅の底板４１が外方に向けて突出形成されており、その底板４１の外縁から、柵状壁４２が立ち上がり形成されている。この柵状壁４２と、左側壁３５の左外側面との間に、上記した検知電線２５の収容溝４４が形成されている。
接続部挿入溝３６は、図２に示すように、収容部３２と収容溝４４とに直交した姿勢において、両者を連通するようにして形成されている。 As shown in FIG. 4, a bottom plate 41 having a predetermined width protrudes outward from the lower end of the outer surface of the left side wall 35, and a fence-like wall 42 rises from the outer edge of the bottom plate 41. Yes. Between the fence-like wall 42 and the left outer surface of the left side wall 35, the receiving groove 44 for the detection electric wire 25 is formed.
As shown in FIG. 2, the connecting portion insertion groove 36 is formed to communicate with each other in a posture orthogonal to the housing portion 32 and the housing groove 44.

分割プロテクタ３１には、収容溝４４を覆う電線カバー６０が設けられている。電線カバー６０は、図４及び図５に示すように、収容溝４４を構成する柵状壁４２の外面側を覆う側面カバー部６１の先端に、収容溝４４から上記した左側壁３５に亘る上面を覆う上面カバー部６２を直角姿勢で連設した断面Ｌ字形に形成されている。電線カバー６０は、側面カバー部６１の基端縁と、収容溝４４を構成する柵状壁４２の下縁部とがヒンジ部６３を介して連結された形態で、分割プロテクタ３１と一体成形されている。 The split protector 31 is provided with an electric wire cover 60 that covers the accommodation groove 44. As shown in FIGS. 4 and 5, the electric wire cover 60 has an upper surface extending from the housing groove 44 to the left side wall 35 at the tip of the side surface cover portion 61 covering the outer surface side of the fence-like wall 42 constituting the housing groove 44. Is formed in an L-shaped cross section in which an upper surface cover portion 62 that covers the upper surface 62 is continuously provided in a right angle posture. The electric wire cover 60 is integrally formed with the split protector 31 in a form in which the base end edge of the side cover portion 61 and the lower edge portion of the fence-like wall 42 constituting the housing groove 44 are connected via a hinge portion 63. ing.

なお、前端の分割プロテクタ３１Ｘでは、収容溝４４の前端が前壁３４の位置に留まっている関係上、電線カバー６０の前端が同じく前壁３４の位置に留まっている。また、隣り合う電線カバー６０の突き合わせ縁同士では、後方（図２の右側）の電線カバー６０の突き合わせ縁が被さるようにしてオーバラップしている。ただし、上面カバー部６２では、表面が面一をなす形態でオーバラップしている。
各電線カバー６０は、図４及び図５に示す開放位置（成形時位置）から、図１１及び図１２に示す閉鎖位置に向けて、ヒンジ部６３を中心として１８０度回動可能となっている。 In the front end split protector 31X, the front end of the wire cover 60 remains at the position of the front wall 34 because the front end of the housing groove 44 remains at the position of the front wall 34. Further, the abutting edges of the adjacent wire covers 60 overlap so that the abutting edges of the rear (covered right side in FIG. 2) wire covers 60 are covered. However, the upper surface cover portion 62 overlaps in a form in which the surfaces are flush with each other.
Each electric wire cover 60 can be rotated 180 degrees around the hinge portion 63 from the open position (molding position) shown in FIGS. 4 and 5 toward the closed position shown in FIGS. 11 and 12. .

続いて、電線カバー６０を閉鎖位置でロックする構造について説明する。電線カバー６０における上面カバー部６２の裏面には、図５に示すように、先端縁寄りの位置において、２本のロック片６５が並んで形成されている（前端の電線カバー６０では１本）。ロック片６５は、先端に爪部６６Ａが形成される一方、爪部６６Ａの背面が傾斜したガイド面６６Ｂとなっている。 Then, the structure which locks the electric wire cover 60 in a closed position is demonstrated. As shown in FIG. 5, two lock pieces 65 are formed side by side on the back surface of the upper surface cover portion 62 in the electric wire cover 60 (one in the electric wire cover 60 at the front end). . The lock piece 65 has a guide surface 66B having a claw portion 66A formed at the tip and an inclined back surface of the claw portion 66A.

一方、上記した前側左側壁３５Ｆ内には、ロック片６５に係止するロック部４５が形成されている。ロック部４５はより詳細には、図５に示すように、前側左側壁３５Ｆ内において、内壁３５Ａ（同図の右壁）と所定間隔を開けて縦壁４６が形成され、その縦壁４６の上端において外方に張り出して形成された段差部４６Ａと、内壁３５Ａの上端部との間に、ロック片６５の爪部６６Ａが挿入される挿入溝４７が形成されている。その挿入溝４７の内壁３５Ａ側の面には、爪部６６Ａに係止する突部４８が突出形成されているとともに、その対向面には曲面形状をなすガイド面４９が形成されている。 On the other hand, a lock portion 45 that engages with the lock piece 65 is formed in the front left side wall 35F. More specifically, as shown in FIG. 5, the lock portion 45 has a vertical wall 46 formed at a predetermined distance from the inner wall 35 A (the right wall in the figure) in the front left side wall 35 F. An insertion groove 47 into which the claw portion 66A of the lock piece 65 is inserted is formed between the stepped portion 46A formed to project outward at the upper end and the upper end portion of the inner wall 35A. On the surface of the insertion groove 47 on the inner wall 35A side, a protrusion 48 that engages with the claw portion 66A is formed to protrude, and a guide surface 49 having a curved surface is formed on the opposite surface.

すなわち、電線カバー６０が閉鎖位置に向けて回動され、回動の終盤になると、ロック片６５の先端部が、ガイド面６６Ｂ，４９同士が摺接して段差部４６Ａを弾性的に拡げつつ挿入溝４７内に挿入され、閉鎖位置まで回動されると、図１２に示すように、段差部４６Ａが復元変位して挿入溝４７が狭められつつ爪部６６Ａが突部４８に係止した状態に保持され、これにより電線カバー６０が閉鎖位置にロックされた状態となる。 That is, when the wire cover 60 is rotated toward the closed position and reaches the final stage of the rotation, the distal end portion of the lock piece 65 is inserted while the guide surfaces 66B and 49 are in sliding contact with each other and the stepped portion 46A is elastically expanded. When inserted into the groove 47 and rotated to the closed position, as shown in FIG. 12, the stepped portion 46A is restored and displaced so that the insertion groove 47 is narrowed and the claw 66A is locked to the protrusion 48. Thus, the electric wire cover 60 is locked in the closed position.

また、電線カバー６０における上面カバー部６２の裏面には、図４に示すように、上記した接続部挿入溝３６内に挿入される検知片６７が突出形成されている。上記のように電線カバー６０が閉鎖位置に回動されたときには、図１３に示すように、検知片６７の先端が、接続部挿入溝３６の底面から所定寸法上方位置に達する設定となっている。より詳細には、バスバー２０が収容部３２内に正規姿勢で収容され、それに伴い（かしめられた）電線接続部２２が接続部挿入溝３６の底面に正規に受けられたときには、検知片６７の先端が、その電線接続部２２の直上の位置まで来る設定となっている。 Further, as shown in FIG. 4, a detection piece 67 that is inserted into the connection portion insertion groove 36 is formed on the back surface of the upper surface cover portion 62 of the electric wire cover 60 so as to protrude. When the wire cover 60 is rotated to the closed position as described above, the tip of the detection piece 67 is set to reach a position above the predetermined dimension from the bottom surface of the connection portion insertion groove 36 as shown in FIG. . More specifically, when the bus bar 20 is accommodated in the regular position in the accommodating portion 32 and the electric wire connecting portion 22 (crimped) along with it is properly received on the bottom surface of the connecting portion insertion groove 36, the detection piece 67 The tip is set to come to a position directly above the wire connection portion 22.

３個の分割プロテクタ３１は、詳しい説明は省略するが、突き合わせ端縁に設けた係合突部７０と、上記した前側左側壁３５Ｆ内に設けられた係合受け部７１とを係合させることで並んで連結され、これにより絶縁プロテクタ３０が形成される。なお、係合突部７０と係合受け部７１からなる連結構造は、隣り合う分割プロテクタ３１同士が互いに接離方向に移動することを許容し得る構造、すなわち隣り合う分割プロテクタ３１同士の間隔を調節し得る構造となっている。
３個の分割プロテクタ３１が連結されたことに伴い、３個の収容部３２が一列に並んでバスバー収容部７３が形成され、また、３個の収容溝４４が一列に並んで電線配索溝７４が形成されるようになっている。 Although the detailed description of the three divided protectors 31 is omitted, the engagement protrusion 70 provided at the butt end edge is engaged with the engagement receiving portion 71 provided in the front left side wall 35F described above. In this way, the insulation protector 30 is formed. In addition, the connection structure which consists of the engagement protrusion 70 and the engagement receiving part 71 is a structure which allows the adjacent division | segmentation protectors 31 to move mutually in the contact / separation direction, ie, the space | interval of adjacent division | segmentation protectors 31. The structure can be adjusted.
As the three divided protectors 31 are connected, the three accommodating portions 32 are arranged in a row to form a bus bar accommodating portion 73, and the three accommodating grooves 44 are arranged in a row to form an electric wire routing groove. 74 is formed.

３個の分割プロテクタ３１が結合された絶縁プロテクタ３０における電線配索溝７４は、その全長が、各分割プロテクタ３１に個別に設けられた３個の電線カバー６０によって閉鎖されるのに対し、バスバー収容部７３については、その全長が、単一物の収容部カバー１００によって閉鎖されるようになっている。 The wire routing groove 74 in the insulating protector 30 to which the three divided protectors 31 are coupled is closed by the three electric wire covers 60 provided individually in each divided protector 31, whereas the bus bar About the accommodating part 73, the full length is closed with the accommodating part cover 100 of a single thing.

収容部カバー１００は合成樹脂製であって、図１４に示すように、バスバー収容部７３の上面開口（左側壁３５の上面開口を含む）を全域に亘って覆うことが可能な長さと幅とを有する概ね帯板状に形成されている。詳しくは後記するが、図２０に示すように、収容部カバー１００における左側縁部が、上記の閉鎖された電線カバー６０の上面カバー部６２の先端部側に重ねられるようになっている。 The housing cover 100 is made of synthetic resin, and has a length and a width that can cover the entire upper surface opening of the bus bar housing portion 73 (including the upper surface opening of the left side wall 35) as shown in FIG. It is formed in the substantially strip | belt-plate shape which has. As will be described in detail later, as shown in FIG. 20, the left side edge portion of the housing portion cover 100 is overlapped with the front end portion side of the upper surface cover portion 62 of the closed electric wire cover 60.

収容部カバー１００の形状を詳細に説明する。収容部カバー１００の断面形状は、図２０に示すように、収容部カバー１００の表面における左右の側縁に、それぞれ被係止縁１０１が全長に亘って立ち上がり形成されている。収容部カバー１００の裏面における幅方向の左側縁に寄った位置には、所定幅の位置決め凹溝１０２が全長に亘って形成されている。同収容部カバー１００における位置決め凹溝１０２よりも左側の小幅の平面部（高位面１０３）の方が、右側の大幅の平面部（低位面１０４）よりも、電線カバー６０の上面カバー部６２の厚さ分、高い位置にある。
収容部カバー１００の裏面の右側縁には、絶縁プロテクタ３０におけるバスバー収容部７３（収容部３２）の右側壁３３の内側に挿入される挿入壁１０５が、下向きに突出形成されている。 The shape of the accommodating portion cover 100 will be described in detail. As shown in FIG. 20, the housing cover 100 has a cross-sectional shape in which left and right side edges on the surface of the housing cover 100 are respectively formed with rising edges 101 over their entire length. A positioning groove 102 having a predetermined width is formed over the entire length at a position near the left side edge in the width direction on the back surface of the housing cover 100. The lower flat surface portion (high surface 103) on the left side of the positioning groove 102 in the housing portion cover 100 has a lower portion of the upper surface cover portion 62 of the electric wire cover 60 than the large flat surface portion (low surface surface 104) on the right side. It is in a high position by the thickness.
An insertion wall 105 that is inserted into the right side wall 33 of the bus bar accommodating portion 73 (accommodating portion 32) of the insulating protector 30 is formed to protrude downward on the right edge of the back surface of the accommodating portion cover 100.

一方、電線カバー６０の上面カバー部６２の裏面（閉鎖された場合の上面）には、図８に示すように、幅方向の先端寄りの位置と、略中央幅位置とに、それぞれリブ７５が略全長に亘って突出形成されている。外側（図１８の左側）の背の高いリブ７５Ａと、収容部３２の右側壁３３との間隔が、収容部カバー１００の幅に匹敵する寸法に設定されている。内側の背の低いリブ７５Ｂの長さ方向の途中位置の数カ所には、図８に示すように、内側に直角に突出したのち後方に直角曲げされたＬ字形をなす位置決めリブ７６が連設されており、同位置決めリブ７６が、図１８に示すように、上記した収容部カバー１００の裏面の位置決め凹溝１０２内に幅方向において略緊密に嵌合するようになっている。 On the other hand, on the back surface (upper surface when closed) of the upper surface cover portion 62 of the electric wire cover 60, as shown in FIG. It is formed to project over substantially the entire length. The distance between the outer (left side in FIG. 18) tall rib 75 A and the right side wall 33 of the housing portion 32 is set to a dimension comparable to the width of the housing portion cover 100. As shown in FIG. 8, positioning ribs 76 each having an L-shape that protrudes inward at a right angle and then bends at a right angle to the rear are provided at several locations along the length of the inner short rib 75B. As shown in FIG. 18, the positioning rib 76 fits closely in the width direction in the positioning groove 102 on the back surface of the housing cover 100 described above.

絶縁プロテクタ３０における前端の分割プロテクタ３１Ｘには、図１及び図５に示すように、前側左側壁３５Ｆの外壁３５Ｂの上縁と、収容部３２を構成する右側壁３３の上縁とから、それぞれ収容部カバー１００の左右の被係止縁１０１に係止する係止片８０が概ね対向して形成されている。係止片８０の上端の対向面にはそれぞれ係止突部８１が形成され、同係止突部８１の下面が切り立った係止面８２Ａであり、上部側が斜めのガイド面８２Ｂとなっている。両係止片８０の上端側は、互いに接離する方向に撓み変位可能である。なお、前端の分割プロテクタ３１Ｘの電線カバー６０における上面カバー部６２には、図７に示すように、電線カバー６０が閉鎖位置に回動された場合に、左側の係止片８０を通して逃がしつつ同電線カバー６０の回動を許容する逃がし窓７７が開口されている。 As shown in FIG. 1 and FIG. 5, the split protector 31 X at the front end of the insulating protector 30 includes an upper edge of the outer wall 35 B of the front left side wall 35 F and an upper edge of the right side wall 33 constituting the housing portion 32. Locking pieces 80 that are locked to the left and right locked edges 101 of the housing portion cover 100 are formed substantially opposite to each other. Locking protrusions 81 are formed on the opposing surfaces of the upper ends of the locking pieces 80, the lower surfaces of the locking protrusions 81 are the locking surfaces 82A, and the upper side is the inclined guide surface 82B. . The upper end sides of the both locking pieces 80 can be deflected and displaced in the direction of contacting and separating from each other. In addition, the upper surface cover portion 62 of the electric wire cover 60 of the split protector 31X at the front end is allowed to escape through the locking piece 80 on the left side when the electric wire cover 60 is rotated to the closed position, as shown in FIG. An escape window 77 that opens the electric wire cover 60 is opened.

収容部カバー１００の前端には、同収容部カバー１００を長さ方向の移動を制止した形態で絶縁プロテクタ３０に取り付けるための取付板１１０が形成されている。取付板１１０には、図１４及び図１９に示すように、両側にスリット１１１が入れられることで、係止板１１２が下向きに形成され、詳細には、下端が若干前方に突出した斜め姿勢に予め形成されている。係止板１１２は、下端側が前後方向に撓み変位可能であり、下端の前面には係止突部１１３が形成されている。 An attachment plate 110 for attaching the accommodation unit cover 100 to the insulating protector 30 is formed at the front end of the accommodation unit cover 100 in such a manner that the movement of the accommodation unit cover 100 in the longitudinal direction is stopped. As shown in FIGS. 14 and 19, the mounting plate 110 is provided with slits 111 on both sides, thereby forming a locking plate 112 downward. Specifically, the mounting plate 110 has a slanted posture with its lower end slightly protruding forward. Pre-formed. The locking plate 112 can be deflected and displaced at the lower end side in the front-rear direction, and a locking projection 113 is formed on the front surface of the lower end.

一方、絶縁プロテクタ３０における前端の分割プロテクタ３１Ｘの前面には、図１及び図２に示すように、上記した取付板１１０が挿入される扁平な角筒状をなす受容筒部９０が形成されている。受容筒部９０の対向した前後の内面の間には、図２に示すように、取付板１１０における両スリット１１１が挿通可能なガイド壁９１が形成されているとともに、両ガイド壁９１の間の位置には、係止板１１２に係止する係止部９２が形成されている。
係止部９２は、図１９に示すように、板材が受容筒部９０の前側の内面から後方に突出したのち、斜め下向きに屈曲された形状であって、傾斜部９３が、後側の内面との間に所定の間隔を有しているとともに、同傾斜部９３の下縁が、係止板１１２の係止突部１１３に係止可能となっている。また、丸みが付けられた角部がガイド面９４となっている。 On the other hand, as shown in FIGS. 1 and 2, a receiving cylinder portion 90 having a flat rectangular tube shape into which the mounting plate 110 is inserted is formed on the front surface of the split protector 31X at the front end of the insulating protector 30. Yes. As shown in FIG. 2, a guide wall 91 through which both slits 111 of the mounting plate 110 can be inserted is formed between the front and back inner surfaces of the receiving cylinder portion 90, and between the guide walls 91. A locking portion 92 that locks to the locking plate 112 is formed at the position.
As shown in FIG. 19, the locking portion 92 has a shape that is bent obliquely downward after the plate material protrudes rearward from the inner surface on the front side of the receiving cylinder portion 90, and the inclined portion 93 is formed on the inner surface on the rear side. And a lower edge of the inclined portion 93 can be locked to the locking projection 113 of the locking plate 112. Further, a rounded corner is a guide surface 94.

続いて、本実施形態の配線モジュールＭを用いた電池モジュールの組み立て手順の一例を説明する。
３個の分割プロテクタ３１を並んで連結することによって絶縁プロテクタ３０を形成する。このときの絶縁プロテクタ３０は、右側縁（図２の上側）に沿ってバスバー収容部７３が、左側縁に沿って電線配索溝７４が互いに平行をなして配された形態であり、また電線カバー６０は開放位置にある。
一方、各バスバー２０に設けられた電線接続部２２に対し、検知電線２５の端末がかしめられて接続される。言い換えると、バスバー２０の一側縁から電線接続部２２を介して検知電線２５が引き出された形態となる。 Then, an example of the assembly procedure of the battery module using the wiring module M of this embodiment is demonstrated.
The insulating protector 30 is formed by connecting the three divided protectors 31 side by side. In this case, the insulation protector 30 has a configuration in which the bus bar accommodating portion 73 is arranged along the right side edge (upper side in FIG. 2), and the wire routing grooves 74 are arranged in parallel with each other along the left side edge. The cover 60 is in the open position.
On the other hand, the terminal of the detection electric wire 25 is caulked and connected to the electric wire connection portion 22 provided in each bus bar 20. In other words, the detection electric wire 25 is pulled out from the one side edge of the bus bar 20 through the electric wire connecting portion 22.

上記のようなバスバー２０が、バスバー収容部７３を構成する各収容部３２に個別に収容される。バスバー２０は収容部３２内に弾性係止片４０を弾性変位させつつ上方から押し込まれ、併せて電線接続部２２が接続部挿入溝３６に挿入される。図５及び図１９に示すように、バスバー２０の長辺側の両側縁が、収容部３２における右側壁３３と左側壁３５の下端の受け縁３８で、また、長さ方向の中央部が仕切板３９で受けられて押し込みが停止されると、左右の弾性係止片４０が復元変位してバスバー２０の長辺側の側縁の上面に係止し、これによりバスバー２０が抜け止めされて収容部３２内に保持される。併せて図１３に示すように、電線接続部２２が接続部挿入溝３６の底面に載せられ、検知電線２５は、後側（図２の右側）に屈曲されて、電線配索溝７４に沿って後方に向けて配索される。 The bus bars 20 as described above are individually accommodated in the accommodating portions 32 constituting the bus bar accommodating portion 73. The bus bar 20 is pushed into the housing part 32 from above while elastically displacing the elastic locking piece 40, and the electric wire connection part 22 is inserted into the connection part insertion groove 36. As shown in FIGS. 5 and 19, both side edges of the long side of the bus bar 20 are the right side wall 33 and the receiving edge 38 of the lower end of the left side wall 35 in the accommodating part 32, and the central part in the length direction is a partition. When the pressing is stopped by being received by the plate 39, the left and right elastic locking pieces 40 are restored and displaced and locked to the upper surface of the side edge on the long side of the bus bar 20, thereby preventing the bus bar 20 from coming off. It is held in the accommodating part 32. In addition, as shown in FIG. 13, the wire connection portion 22 is placed on the bottom surface of the connection portion insertion groove 36, and the detection wire 25 is bent to the rear side (right side in FIG. 2) along the wire routing groove 74. And routed backwards.

上記のようにバスバー２０がバスバー収容部７３に収容され、それとともに各バスバー２０から引き出された検知電線２５が電線配索溝７４に収容されたら、電線配索溝７４を閉鎖するべく電線カバー６０が閉じられる。電線カバー６０は、図４及び図５に示す開放位置から、ヒンジ部６３を中心として同図の時計回り方向に閉鎖位置に向けて回動される。ここで、前端の電線カバー６０については、図７に示すように、左側の係止片８０を逃がし窓７７に通して逃がしつつ回動される。 As described above, when the bus bar 20 is accommodated in the bus bar accommodating portion 73 and the detection electric wires 25 drawn out from the bus bars 20 are accommodated in the electric wire arrangement grooves 74, the electric wire cover 60 is closed to close the electric wire arrangement grooves 74. Is closed. The electric wire cover 60 is rotated from the open position shown in FIGS. 4 and 5 toward the closed position in the clockwise direction of FIG. Here, the electric wire cover 60 at the front end is rotated while letting the locking piece 80 on the left side pass through the escape window 77 as shown in FIG.

電線カバー６０が閉鎖位置の手前にまで回動されると、上面カバー部６２の先端部裏面に設けられたロック片６５の先端部が、ガイド面６６Ｂ，４９同士の摺接を伴って、ロック部４５における段差部４６Ａを弾性的に拡げつつ挿入溝４７内に挿入される。
電線カバー６０が、上面カバー部６２が左側壁３５の上面に当たる閉鎖位置まで回動されると、図１２に示すように、段差部４６Ａが復元変位して挿入溝４７が狭められつつ爪部６６Ａが突部４８に係止した状態に保持され、これにより電線カバー６０が閉鎖位置にロックされた状態となる。 When the wire cover 60 is rotated to the front of the closed position, the front end portion of the lock piece 65 provided on the back surface of the front end portion of the upper surface cover portion 62 is locked with the sliding contact between the guide surfaces 66B and 49. The step portion 46A in the portion 45 is inserted into the insertion groove 47 while being elastically expanded.
When the electric wire cover 60 is rotated to the closed position where the upper surface cover portion 62 hits the upper surface of the left side wall 35, the step portion 46A is restored and displaced, and the insertion groove 47 is narrowed as shown in FIG. Is held in a state of being locked to the protrusion 48, whereby the electric wire cover 60 is locked in the closed position.

３枚の電線カバー６０が閉鎖されると、側面カバー部６１が電線配索溝７４を構成する柵状壁４２の外面側を覆うとともに、上面カバー部６２が、電線配索溝７４の上面開口と、二重の左側壁３５の上面開口、さらには接続部挿入溝３６の上方を覆った状態となる。また、図１３に示すように、検知片６７が電線接続部２２の直上位置に達し、電線接続部２２の上方への外れ止めとして機能する。 When the three wire covers 60 are closed, the side surface cover portion 61 covers the outer surface side of the fence-like wall 42 constituting the wire routing groove 74, and the upper surface cover portion 62 opens the upper surface of the wire routing groove 74. Then, the upper surface opening of the double left side wall 35 and the upper part of the connection portion insertion groove 36 are covered. Further, as shown in FIG. 13, the detection piece 67 reaches a position directly above the electric wire connection portion 22 and functions as a stopper for preventing the electric wire connection portion 22 from coming off.

ここで、仮にバスバー２０が対応する収容部３２に正規に収容されておらず、例えば図１３の鎖線に示すように、電線接続部２２側が浮いた状態に留まっていると、電線カバー６０が閉鎖位置に回動される手前において、検知片６７が浮いた電線接続部２２に当たってそれ以上の回動ができず、これによりバスバー２０が正規に収容されていないことが検知される。そのときは、電線カバー６０を開いて、バスバー２０を改めて正規位置まで押し込み、しかる後、電線カバー６０を閉じて上記の要領でロックすればよい。
以上により、収容部カバー１００を除いた配線モジュールＭの組み立てが完了する。 Here, if the bus bar 20 is not properly accommodated in the corresponding accommodating portion 32 and, for example, as shown by the chain line in FIG. 13, the electric wire connecting portion 22 side remains floating, the electric wire cover 60 is closed. Prior to being rotated to the position, the detection piece 67 hits the floating electric wire connection portion 22 and cannot be further rotated, thereby detecting that the bus bar 20 is not properly accommodated. In that case, the electric wire cover 60 is opened, the bus bar 20 is pushed into the normal position again, and then the electric wire cover 60 is closed and locked as described above.
Thus, the assembly of the wiring module M excluding the housing portion cover 100 is completed.

このように組み立てられた配線モジュールＭが、図９に示すように、単電池群１０の側縁部に沿って載せられる。これに伴い、単電池１１に立てられた電極端子１２が、バスバー２０の貫通孔２１に下方から貫通して上面側に突出する。
なお、単電池１１の組付公差の積算等により、電極端子１２とバスバー２０の貫通孔２１との整合が採れなくなったときは、隣り合う分割プロテクタ３１同士の間隔を調節して、電極端子１２とバスバー２０の貫通孔２１との整合を採るようにすればよい。
続いて、バスバー２０の貫通孔２１に貫通された電極端子１２にナット（図示せず）を螺合して締め付けることにより、隣り合う単電池１１の電極端子１２同士がバスバー２０を介して電気的に接続された状態となる。 The wiring module M assembled in this way is placed along the side edge of the unit cell group 10, as shown in FIG. Along with this, the electrode terminal 12 erected on the unit cell 11 penetrates the through hole 21 of the bus bar 20 from below and protrudes to the upper surface side.
In addition, when the alignment between the electrode terminal 12 and the through hole 21 of the bus bar 20 cannot be achieved due to integration of the assembly tolerances of the unit cells 11, the distance between the adjacent divided protectors 31 is adjusted to adjust the electrode terminal 12. And the through hole 21 of the bus bar 20 may be aligned.
Subsequently, the electrode terminals 12 of the adjacent unit cells 11 are electrically connected to each other via the bus bar 20 by screwing and tightening nuts (not shown) to the electrode terminals 12 penetrated through the through holes 21 of the bus bar 20. It will be connected to.

ナットの締結作業が完了したら、バスバー収容部７３の上面開口を覆うべく収容部カバー１００が装着される。
手順としては、図１４に示すように、収容部カバー１００を少し前下がりの斜め姿勢として、取付板１１０を受容筒部９０内に挿入したのち、収容部カバー１００を水平に姿勢を変えつつ絶縁プロテクタ３０の上面に向けて押し込む。詳細には、右側の係止片８０を弾性撓みさせつつ、収容部カバー１００の右側縁の挿入壁１０５をバスバー収容部７３の右側壁３３の内側に沿わせるようにして押し込まれ、押し込みの終盤では、左右の被係止縁１０１が左右の係止片８０を弾性的に開いて、左側の被係止縁１０１を電線カバー６０の外側のリブ７５Ａの内側に入れ、また内側のリブ７５Ｂ並びに位置決めリブ７６を位置決め凹溝１０２に嵌めつつ押し込まれる。 When the nut fastening operation is completed, the accommodating portion cover 100 is attached to cover the upper surface opening of the bus bar accommodating portion 73.
As shown in FIG. 14, as shown in FIG. 14, the housing portion cover 100 is inclined slightly forward and the mounting plate 110 is inserted into the receiving tube portion 90, and then the housing portion cover 100 is insulated while changing its posture horizontally. Push toward the upper surface of the protector 30. More specifically, while the right locking piece 80 is elastically bent, the insertion wall 105 at the right edge of the housing cover 100 is pushed in along the inside of the right wall 33 of the bus bar housing 73, and the final stage of the pushing Then, the left and right locked edges 101 elastically open the left and right locking pieces 80, the left locked edge 101 is placed inside the outer rib 75A of the electric wire cover 60, and the inner rib 75B and The positioning rib 76 is pushed in while being fitted in the positioning groove 102.

図２０及び図２１に示すように、収容部カバー１００の低位面１０４がバスバー収容部７３を構成する収容部３２の前壁３４の上端に当たり、また高位面１０３が電線カバー６０の上面カバー部６２に当たったところで押し込みが停止され、このとき左右の係止片８０が復元変位して、左右の係止突部８１が左右の被係止縁１０１の上端に係止する。
この間、取付板１１０は、スリット１１１にガイド壁９１が嵌って案内されつつ押し込まれ、併せて係止板１１２が弾性変位しつつ、係止部９２の傾斜部９３の後方の間隙に押し込まれ、上記のように収容部カバー１００の押し込みが停止されたところで、図１９に示すように、係止板１１２が復元変位して係止突部１１３が係止部９２の傾斜部９３の下端に係止する。 As shown in FIGS. 20 and 21, the lower surface 104 of the housing portion cover 100 hits the upper end of the front wall 34 of the housing portion 32 constituting the bus bar housing portion 73, and the high surface 103 is the upper surface cover portion 62 of the electric wire cover 60. In this case, the pushing operation is stopped. At this time, the left and right locking pieces 80 are restored and displaced, and the left and right locking projections 81 are locked to the upper ends of the left and right locked edges 101.
During this time, the mounting plate 110 is pushed into the slit 111 while being guided by the guide wall 91 being fitted, and at the same time, the locking plate 112 is pushed into the gap behind the inclined portion 93 of the locking portion 92 while being elastically displaced. As shown in FIG. 19, when the pushing of the housing portion cover 100 is stopped as described above, the locking plate 112 is restored and displaced, and the locking projection 113 is engaged with the lower end of the inclined portion 93 of the locking portion 92. Stop.

これにより収容部カバー１００は、バスバー収容部７３の上面開口の全域を覆い、かつ左側縁部の低位面１０３が電線カバー６０の上面カバー部６２を押さえた状態において、上方への外れと長さ方向の移動が制止された状態に保持される。
以上により、本実施形態の配線モジュールＭを用いた電池モジュールの組み立てが完了する。 As a result, the accommodating portion cover 100 covers the entire upper surface opening of the bus bar accommodating portion 73, and in the state where the lower surface 103 of the left edge holds the upper surface covering portion 62 of the electric wire cover 60, the upward displacement and the length. The movement of the direction is held in a restrained state.
Thus, the assembly of the battery module using the wiring module M of the present embodiment is completed.

本実施形態によれば、以下のような効果を得ることができる。
本実施形態では、絶縁プロテクタ３０が３個の分割プロテクタ３１を連結して形成され、したがって各分割プロテクタ３１の収容部３２が一列に並ぶことでバスバー収容部７３が形成されるが、特に隣り合う分割プロテクタ３１同士の間隔を調節可能に、すなわち並び方向に可動に連結される構造であるため、絶縁プロテクタ３０の長さ、すなわちバスバー収容部７３の長さがばらついたり、バスバー収容部７３の途中に隙間ができる可能性がある。それに対して、本実施形態では、上記のバスバー収容部７３を覆う収容部カバー１００が単一物として備えられているから、バスバー収容部７３の長さにばらつきが出たり、途中に隙間ができた場合にも、バスバー収容部７３を全長に亘って確実に閉鎖することができる。 According to this embodiment, the following effects can be obtained.
In the present embodiment, the insulating protector 30 is formed by connecting three divided protectors 31. Therefore, the bus bar accommodating portions 73 are formed by arranging the accommodating portions 32 of the respective divided protectors 31 in a line, but they are particularly adjacent to each other. Since the distance between the divided protectors 31 can be adjusted, that is, the structure is movably connected in the arrangement direction, the length of the insulating protector 30, that is, the length of the bus bar accommodating portion 73 varies, or the middle of the bus bar accommodating portion 73. There is a possibility that there is a gap. On the other hand, in this embodiment, since the accommodating part cover 100 which covers said bus-bar accommodating part 73 is provided as a single thing, the length of the bus-bar accommodating part 73 comes out, and a clearance gap is made in the middle. In this case, the bus bar accommodating portion 73 can be reliably closed over the entire length.

収容部カバー１００を閉鎖状態に係止する構造は、バスバー収容部７３の左右の側縁に立ち上がり形成した一対の係止片８０が、収容部カバー１００の左右の被係止縁１０１にそれぞれ弾性的に係止する構造となっている。この係止構造であると、収容部カバー１００が絶縁プロテクタ３０に対して長さ方向に相対的に移動することを許容しつつ、収容部カバー１００を閉鎖状態に係止することができ、そのため、上記したバスバー収容部７３の長さのばらつき等によらず、その全長に亘って確実に閉鎖する機能を容易に実現できる。
また、従前のカバーに係止孔が開口された係止構造と比較すると、開口の形成が回避された分、収容部カバー１００の強度低下が防止され、また防塵対策にも有効となる。 The structure in which the housing cover 100 is locked in the closed state is such that the pair of locking pieces 80 formed on the left and right side edges of the bus bar housing 73 are elastic to the left and right locked edges 101 of the housing cover 100. It is the structure which latches automatically. With this locking structure, the housing portion cover 100 can be locked in a closed state while allowing the housing portion cover 100 to move relative to the insulation protector 30 in the length direction, and therefore The function of reliably closing the entire length of the bus bar accommodating portion 73 can be easily realized regardless of variations in the length of the bus bar accommodating portion 73 described above.
In addition, compared with a conventional locking structure in which a locking hole is opened in the cover, the reduction in strength of the housing portion cover 100 is prevented by the amount by which the formation of the opening is avoided, and it is also effective in measures against dust.

電線カバー６０が閉鎖位置にロックされたのち、引き続いて収容部カバー１００が閉鎖位置に保持される場合に、収容部カバー１００の左側縁部に設けられた高位面１０３が、電線カバー６０の上面カバー部６２を押さえる構造となっている。すなわち、電線カバー６０は二重係止された状態となり、電線カバー６０がヒンジ部６３を介して回動可能に設けられたものでありながらも、より確実に閉鎖位置に保持することができる。 After the electric wire cover 60 is locked in the closed position, when the accommodating portion cover 100 is subsequently held in the closed position, the high level surface 103 provided on the left edge of the accommodating portion cover 100 is the upper surface of the electric wire cover 60. The cover portion 62 is pressed. That is, the electric wire cover 60 is double-locked, and the electric wire cover 60 can be held in the closed position more reliably even though the electric wire cover 60 is rotatably provided via the hinge portion 63.

収容部カバー１００が正規に被着された場合には、図２１に示すように、収容部カバー１００の左右の側縁が、電線カバー６０の外側のリブ７５Ａと、収容部３２の右側壁３３との間で挟まれ、また、収容部カバー１００の裏面の位置決め凹溝１０２内に、電線カバー６０に設けられた位置決めリブ７６（内側のリブ７５Ｂを含む）が嵌った形態となる。これにより、収容部カバー１００が被着されたのち横ずれすることが規制され、係止片８０を徒に弾性変位させることが防止されて係止強度が確保される。また、位置決め凹溝１０２と位置決めリブ７６（内側のリブ７５Ｂを含む）の嵌合部分では、一種のラビリンス構造を呈することとなって、防塵等により有効となる。 When the accommodating portion cover 100 is properly attached, as shown in FIG. 21, the left and right side edges of the accommodating portion cover 100 have ribs 75 A outside the electric wire cover 60 and the right side wall 33 of the accommodating portion 32. In addition, positioning ribs 76 (including inner ribs 75B) provided on the wire cover 60 are fitted in the positioning grooves 102 on the back surface of the housing cover 100. Thus, the lateral displacement after the accommodating portion cover 100 is attached is restricted, and the locking piece 80 is prevented from being elastically displaced and the locking strength is ensured. In addition, the fitting portion between the positioning groove 102 and the positioning rib 76 (including the inner rib 75B) exhibits a kind of labyrinth structure, which is more effective for dust prevention and the like.

図４に示すように、電線カバー６０の上面カバー部６２の裏面には検知片６７が突出形成され、電線カバー６０が閉鎖位置に回動されたときには、検知片６７の先端が、接続部挿入溝３６の底面から所定寸法上方位置に達する構造となっている。そのため、バスバー２０が正規姿勢で収容されておらず、例えば図１３の鎖線に示すように、電線接続部２２側が浮いた状態に留められていると、電線カバー６０が閉鎖位置側に回動されたときに、電線カバー６０の検知片６７が浮いた電線接続部２２に当たって閉鎖できず、これによりバスバー２０が正規に装着されていないことが検知される。 As shown in FIG. 4, a detection piece 67 is formed to protrude from the back surface of the upper surface cover portion 62 of the electric wire cover 60. When the electric wire cover 60 is turned to the closed position, the tip of the detection piece 67 is inserted into the connection portion. The structure reaches a position above the predetermined dimension from the bottom surface of the groove 36. Therefore, if the bus bar 20 is not accommodated in the normal posture and the electric wire connecting part 22 side is kept in a floating state as shown by a chain line in FIG. 13, for example, the electric wire cover 60 is rotated to the closed position side. The detection piece 67 of the electric wire cover 60 hits the floating electric wire connection portion 22 and cannot be closed, thereby detecting that the bus bar 20 is not properly attached.

＜他の実施形態＞
本明細書によって開示される技術は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も技術的範囲に含まれる。
（１）電池モジュール（単電池群）を構成する単電池の数については任意であり、配線モジュールについても単電池の個数に応じて適宜形状を変更することができる。
（２）上記実施形態では、単電池の電極端子とバスバーとの位置ずれを吸収するために、絶縁プロテクタが複数の分割プロテクタを可動に連結した構造のものを例示したが、バスバーの貫通孔を長孔にする等の他の手段により位置ずれが吸収できるようになっていれば、分割プロテクタを可動に連結する構造とする必要はない。
（３）上記実施形態では、絶縁プロテクタが、分割プロテクタを直接的に連結することで形成されたものを例示したが、隣り合う分割プロテクタに亘るようにバスバーが配されて、分割プロテクタをバスバーを介して間接的に連結することで形成されているものであってもよい。
（４）さらに、絶縁プロテクタが分割されておらず一体物で形成されている場合にも、本開示技術は適用可能である。 <Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and the drawings. For example, the following embodiments are also included in the technical scope.
(1) The number of unit cells constituting the battery module (unit cell group) is arbitrary, and the shape of the wiring module can be changed as appropriate according to the number of unit cells.
(2) In the above embodiment, in order to absorb the positional deviation between the electrode terminal of the unit cell and the bus bar, the insulating protector is exemplified to have a structure in which a plurality of divided protectors are movably connected. If the misalignment can be absorbed by other means such as a long hole, the divided protector need not be movably connected.
(3) In the said embodiment, although the insulation protector illustrated what was formed by connecting a division | segmentation protector directly, a bus bar is distribute | arranged so that an adjacent division | segmentation protector may be used, and a division | segmentation protector may be connected to a bus bar. It may be formed by being indirectly connected through a via.
(4) Furthermore, the disclosed technology can also be applied when the insulating protector is not divided and formed as a single body.

（５）上記実施形態では、検知電線をバスバーから引き出す構造として、バスバーに一体的に設けた電線接続部に検知電線の端末を直接に接続した構造を例示したが、その他、検知電線の端末に設けた検知端子をバスバー上に溶接して固定したものや、同検知端子を締結具の共締めにより固定したものであってもよい。
（６）上記実施形態では、検知電線として電圧検知電線を例示したが、その他、電流検知電線、温度検知電線等の他の検知電線であってもよい。
（７）上記実施形態では蓄電素子として単電池を例示したが、キャパシタであってもよい。 (5) In the above embodiment, the structure in which the terminal of the detection electric wire is directly connected to the electric wire connecting portion integrally provided on the bus bar is exemplified as the structure for drawing the detection electric wire from the bus bar. The detection terminal provided may be fixed by welding on the bus bar, or the detection terminal fixed by fastening the fasteners together.
(6) In the said embodiment, although the voltage detection electric wire was illustrated as a detection electric wire, other detection electric wires, such as a current detection electric wire and a temperature detection electric wire, may be sufficient.
(7) In the above embodiment, the single battery is exemplified as the power storage element, but a capacitor may be used.

Ｍ…配線モジュール
１０…単電池群（蓄電素子群）
１１…単電池（蓄電素子）
１２…電極端子
２０…バスバー
２２…電線接続部
２５…検知電線
３０…絶縁プロテクタ
３１，３１Ｘ…分割プロテクタ
３２…（バスバー２０の）収容部
４４…（検知電線２５の）収容溝
４５…ロック部
６０…電線カバー
６２…上面カバー部
６３…ヒンジ部
６７…検知片（検知部）
７３…バスバー収容部
７４…電線配索溝
７６…位置決めリブ（凸部；位置決め部）
８０…係止片（係止部）
１００…収容部カバー
１０１…被係止縁
１０２…位置決め凹溝（凹部；位置決め部）
１０３…高位面 M ... Wiring module 10 ... Single battery group (electric storage element group)
11 ... Single cell (electric storage element)
DESCRIPTION OF SYMBOLS 12 ... Electrode terminal 20 ... Bus bar 22 ... Electric wire connection part 25 ... Detection electric wire 30 ... Insulation protector 31, 31X ... Divided protector 32 ... Storage part (of bus bar 20) 44 ... Storage groove 45 (detection electric wire 25) 45 ... Lock part 60 ... Wire cover 62 ... Top cover part 63 ... Hinge part 67 ... Detection piece (detection part)
73 ... Bus bar housing portion 74 ... Wire routing groove 76 ... Positioning rib (convex portion; positioning portion)
80 ... locking piece (locking part)
DESCRIPTION OF SYMBOLS 100 ... Storage part cover 101 ... Locked edge 102 ... Positioning ditch | groove (recessed part; positioning part)
103 ... High-level surface

Claims

A wiring module provided in a power storage element group composed of a plurality of power storage elements having positive and negative electrode terminals,
A bus bar housing part that is mounted on one surface of the power storage element group and accommodates a plurality of bus bars that connect adjacent electrode terminals in a row, and an electric wire in which a detection wire drawn from each of the bus bars is routed An insulation protector provided with a routing groove;
A housing portion cover for closing an opening of the bus bar housing portion in the insulating protector, and
The wiring module in which the opening edge of the said bus-bar accommodating part in the said insulation protector is provided with the latching | locking part latched elastically to the side edge of the said accommodating part cover.

The insulation protector is provided with a wire cover that opens and closes the wire routing groove so as to be rotatable via a hinge portion, and a lock portion that engages with the wire cover and locks the wire cover in a closed position. The wiring module according to claim 1, wherein the rotating end portion of the wire cover that is provided and locked in the closed position is pressed by the housing portion cover that is locked in the closed position.

A concave portion is provided on one of the back surface of the housing portion cover and the front surface of the electric wire cover, and a convex portion that fits into the concave portion is provided on either one of the concave portion and the concave portion that are fitted to each other. The wiring module according to claim 2, wherein a positioning portion that restricts lateral displacement of the housing portion cover is formed by the convex portion.

The insulation protector has a structure in which a plurality of split protectors provided with a part of the bus bar housing part and a part of the wire routing groove are connected directly or indirectly, and the wire cover is formed of the split protector. 4. The wiring module according to claim 2, wherein the housing portion cover is formed as a single member capable of closing the bus bar housing portion over the entire area, while being provided in a divided form. .

The bus bar is provided with an electric wire connecting portion to which the terminal of the detection electric wire is connected, and the back surface of the electric wire cover is in a state where the electric wire cover is in a closed position, in the vicinity of the electric wire connecting portion of the bus bar. The wiring module as described in any one of Claim 2 thru | or 4 with which the opposing detection part is provided.