JP6819480B2 - Automotive electrical junction box - Google Patents

Automotive electrical junction box Download PDF

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JP6819480B2
JP6819480B2 JP2017121551A JP2017121551A JP6819480B2 JP 6819480 B2 JP6819480 B2 JP 6819480B2 JP 2017121551 A JP2017121551 A JP 2017121551A JP 2017121551 A JP2017121551 A JP 2017121551A JP 6819480 B2 JP6819480 B2 JP 6819480B2
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connector
fitted
housing
electronic component
relay
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JP2019009863A (en
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傑 安田
傑 安田
岩田　徹
徹 岩田
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Sumitomo Wiring Systems Ltd
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Description

本発明は車載用の電気接続箱に関し、詳しくは、車両に搭載するリレーボックス等の電気接続箱のケース本体に、下端に電線と接続したコネクタを嵌合していると共に内部に回路基板を収容しているリレーモジュール等の電子部品モジュールを上方から挿入して組み立てている電気接続箱において、前記コネクタが半嵌合であると検知できると共に該コネクタおよび回路基板の脱落を防止するものである。 The present invention relates to an in-vehicle electric connector, and more specifically, a connector connected to an electric wire is fitted to the lower end of a case body of an electric connector such as a relay box mounted on a vehicle, and a circuit board is housed inside. In an electric junction box assembled by inserting an electronic component module such as a relay module from above, it is possible to detect that the connector is semi-fitted and prevent the connector and the circuit board from falling off.

この種のリレーボックス等の電気接続箱に関して、特開２０１５−８５５６号公報において、図９（Ａ）（Ｂ）に示すように、リレーボックス１００にリレーモジュール１０１を嵌合する際に、リレーモジュール１０１の底面に嵌合するコネクタ１１０が半嵌合状態であると完全嵌合に矯正するために、リレーボックス１００の側壁内面から張出部１２０を突設し、該張出部１２０を半嵌合位置のコネクタ１１０に当接させて、完全に嵌合させるようにしている。 Regarding an electrical connection box such as this type of relay box, as shown in FIGS. 9A and 9B in Japanese Patent Application Laid-Open No. 2015-8556, when the relay module 101 is fitted into the relay box 100, the relay module When the connector 110 fitted to the bottom surface of the 101 is in a semi-fitted state, the overhanging portion 120 is projected from the inner surface of the side wall of the relay box 100, and the overhanging portion 120 is half-fitted. It is brought into contact with the connector 110 at the aligned position so as to be completely fitted.

特開２０１５−８５５６号公報JP-A-2015-8556

特許文献１に開示された電気接続箱では、リレーボックスに上方から挿入するリレーモジュールの底面に嵌合したコネクタが半嵌合状態であると、張出部に当接してコネクタが完全嵌合位置に押し上げられる構成とされている。しかしながら、図１０に示すようにコネクタに接続した電線２００が張出部１２０とコネクタ１１０の間に噛み込みやすく、張出部１２０の上面を傾斜面としても噛み込みを確実に無くすことは困難である。
このように、電線の噛み込みが発生すると、リレーモジュールは所定位置より上方に位置ズレし、リレーモジュールとリレーボックスとに設けたロック結合部が完全にロックできず、リレーボックスとリレーモジュールとの組付作業に時間がかかる問題がある。
さらに、リレーモジュール１０１のハウジング内に収容している回路基板がリレーモジュールの上方からの押し込みで下方へ脱落する恐れもある。 In the electrical connection box disclosed in Patent Document 1, when the connector fitted to the bottom surface of the relay module to be inserted into the relay box from above is in a semi-fitted state, the connector comes into contact with the overhanging portion and the connector is in a completely fitted position. It is said that it is pushed up to. However, as shown in FIG. 10, the electric wire 200 connected to the connector easily bites between the overhanging portion 120 and the connector 110, and it is difficult to reliably eliminate the biting even if the upper surface of the overhanging portion 120 is an inclined surface. is there.
In this way, when the wire is caught, the relay module is displaced above the predetermined position, and the lock coupling portion provided between the relay module and the relay box cannot be completely locked, so that the relay box and the relay module are connected to each other. There is a problem that the assembly work takes time.
Further, the circuit board housed in the housing of the relay module 101 may be pushed downward by pushing from above the relay module.

本発明は前記問題に鑑みてなされたもので、コネクタが本嵌合か半嵌合かを検知でき、かつ、リレーモジュール等の電子部品モジュール内の回路基板の脱落を防止できるようにした車載用の電気接続箱を提供することを課題としている。 The present invention has been made in view of the above problems, and is for in-vehicle use in which it is possible to detect whether the connector is fully fitted or semi-fitted, and to prevent the circuit board in the electronic component module such as a relay module from falling off. The challenge is to provide electrical junction boxes.

前記課題を解決するため、本発明は、電気接続箱のケース本体の上下開口の収容部内に上方から電子部品モジュールが挿入固定され、該電子部品モジュールに収容された回路基板の下端のコネクタに電線端末に接続された相手方のコネクタが嵌合され、
前記電子部品モジュールのハウジングの外側壁の下端に、前記コネクタの電線接続側へ突出する延長壁を備え、かつ、
前記コネクタの電線接続側枠に接触する嵌合検知部を有すると共に該コネクタが本嵌合位置にあると前記延長壁と係止できるリテーナを備えていることを特徴とする電気接続箱を提供している。 In order to solve the above problems, in the present invention, the electronic component module is inserted and fixed from above into the accommodating portion of the upper and lower openings of the case body of the electric junction box, and the electric wire is connected to the connector at the lower end of the circuit board accommodated in the electronic component module. The connector of the other party connected to the terminal is fitted,
At the lower end of the outer wall of the housing of the electronic component module, an extension wall protruding toward the electric wire connection side of the connector is provided, and
Provided is an electrical connection box characterized by having a fitting detection unit that contacts a wire connection side frame of the connector and a retainer that can be locked to the extension wall when the connector is in the main fitting position. ing.

前記電子部品モジュールのハウジングの前記外側壁にロック部を備え、該ロック部と結合する被ロック部を前記ケース本体の収容部の内面に備え、
前記リテーナは前記コネクタと対応する位置に各コネクタの電線接続側枠に接触する嵌合検知部を段状に備え、該嵌合検知部の突出方向と直交方向の両側外面に係止部を設け、該係止部と係止する被係止部を前記延長壁の内面に設け、前記コネクタが半嵌合であると前記係止部と被係止部は係止出来ない構成としている。 A lock portion is provided on the outer wall of the housing of the electronic component module, and a locked portion to be coupled to the lock portion is provided on the inner surface of the accommodating portion of the case body.
The retainer is provided with a fitting detection portion that contacts the electric wire connection side frame of each connector at a position corresponding to the connector in a stepped manner, and locking portions are provided on both outer surfaces in a direction orthogonal to the protruding direction of the fitting detection portion. A locked portion that locks with the locked portion is provided on the inner surface of the extension wall, and the locked portion and the locked portion cannot be locked if the connector is semi-fitted.

前記のように、電子部品モジュールに電線を接続したコネクタを嵌合した状態で、リテーナを取り付けると、コネクタが完全に半嵌合であると、ハウジングの延長壁に係止できず、コネクタが半嵌合であることを作業員は知ることができる。一方、コネクタが完全に嵌合された本嵌合であるとハウジングの延長壁に固定でき、リテーナはコネクタの下面を支持した状態でハウジングに固定される。その結果、該電子部品モジュールを電気接続箱のケース本体に上方から押し込む際に、ケース本体内の回路基板が下方へ落下しようとしても、回路基板に設けた基板コネクタと嵌合している相手方のコネクタがリテーナで下支えされているため、回路基板の落下を防止できる。
さらに、コネクタから下方へのびる電線が広がるのを延長壁により規制でき、電線が撓んで隙間に噛み込むのを防止できる。その結果、電子部品モジュールを電気接続箱の収容部内の所定位置までスムーズに挿入して固定することができる。 As described above, if the retainer is attached with the connector with the electric wire connected to the electronic component module fitted, if the connector is completely half-fitted, it cannot be locked to the extension wall of the housing and the connector is half-fitted. The worker can know that it is a mating. On the other hand, when the connector is completely fitted, it can be fixed to the extension wall of the housing, and the retainer is fixed to the housing while supporting the lower surface of the connector. As a result, when the electronic component module is pushed into the case body of the electrical junction box from above, even if the circuit board in the case body tries to fall downward, the other party's mating with the board connector provided on the circuit board Since the connector is supported by a retainer, the circuit board can be prevented from falling.
Further, the extension wall can regulate the extension of the electric wire extending downward from the connector, and the electric wire can be prevented from bending and getting caught in the gap. As a result, the electronic component module can be smoothly inserted and fixed to a predetermined position in the accommodating portion of the electrical junction box.

前記電気接続箱はリレーボックスであり、該リレーボックスのケース本体内の収容部に挿入する前記電子部品モジュールはリレーモジュールからなる場合に、特に好適に用いられる。 The electrical connection box is a relay box, and the electronic component module inserted into the accommodating portion in the case body of the relay box is particularly preferably used when the relay module is used.

本発明の車載用の電気接続箱では、該電気接続箱のケース本体の収容部に挿入するリレーモジュール等の電子部品モジュールにコネクタを嵌合している場合、嵌合検知部を備えたリテーナを取り付けることにより、コネクタが半嵌合であれば検知できるものとしている。また、コネクタが完全に嵌合している本嵌合であれば、リテーナが電子部品モジュールに係止して固定できるため、リテーナによりコネクタを下支えできる。よって、リテーナで支持されるコネクタと嵌合する基板型コネクタを設けている回路基板自体が下方へ落下するのを防止できる。さらに、電気部品モジュールのハウジングの外側壁に下方へ伸びる延長壁を設けているため、コネクタに接続した電線の広がりを防止でき、電気接続箱の内部での電線の噛み込み発生を防止できる。 In the vehicle-mounted electrical junction box of the present invention, when the connector is fitted to an electronic component module such as a relay module to be inserted into the housing portion of the case body of the electrical junction box, a retainer provided with a fitting detection unit is provided. By attaching it, it is possible to detect if the connector is half-fitted. Further, in the case of the main fitting in which the connector is completely fitted, the retainer can be locked and fixed to the electronic component module, so that the retainer can support the connector. Therefore, it is possible to prevent the circuit board itself provided with the board-type connector that fits with the connector supported by the retainer from falling downward. Further, since the extension wall extending downward is provided on the outer wall of the housing of the electric component module, it is possible to prevent the electric wire connected to the connector from spreading, and it is possible to prevent the electric wire from being caught inside the electric junction box.

本発明の実施形態を示し、（Ａ）はリレーボックスの概略分解斜視図、（Ｂ）はリレーモジュールと嵌合する電線端末のコネクタを示す斜視図である。An embodiment of the present invention is shown, (A) is a schematic exploded perspective view of a relay box, and (B) is a perspective view showing a connector of an electric wire terminal fitted with a relay module. リレーボックスのケース本体にリレーモジュールを収容した状態の断面図である。It is sectional drawing of the state in which the relay module is housed in the case body of a relay box. （Ａ）はリレーモジュールに嵌合したコネクタが本嵌合された状態を示す図面、（Ｂ）はコネクタが半嵌合の状態を示す図面である。(A) is a drawing showing a state in which the connector fitted to the relay module is finally fitted, and (B) is a drawing showing a state in which the connector is semi-fitted. （Ａ）はリレーモジュールの斜視図、（Ｂ）はリレーモジュールの下面図である。(A) is a perspective view of the relay module, and (B) is a bottom view of the relay module. （Ａ）はコネクタを嵌合したリレーモジュールとリテーナの分解斜視図である。(A) is an exploded perspective view of a relay module and a retainer fitted with a connector. 前記リテーナを示し、（Ａ）は背面図、（Ｂ）は側面図である。The retainer is shown, (A) is a rear view, and (B) is a side view. （Ａ）はリレーモジュールにリテーナを組みつけた状態の斜視図、（Ｂ）はコネクタとリテーナの関係を示す斜視図ある。(A) is a perspective view showing a state in which the retainer is assembled to the relay module, and (B) is a perspective view showing the relationship between the connector and the retainer. （Ａ）はリレーボックス内にコネクタを本嵌合したリレーモジュールを収容した状態を示す概略断面図、（Ｂ）はコネクタが半嵌合した状態の概略断面図、（Ｃ）と（Ｄ）はコネクタにリテーナが接触している状態の概略説明図である。(A) is a schematic cross-sectional view showing a state in which the relay module in which the connector is fully fitted is housed in the relay box, (B) is a schematic cross-sectional view in a state where the connector is half-fitted, and (C) and (D) are. It is schematic explanatory drawing of the state in which a retainer is in contact with a connector. （Ａ）、（Ｂ）は従来例を示す概略断面図である。(A) and (B) are schematic cross-sectional views showing a conventional example. 前記従来例の問題点を示す概略断面図である。It is the schematic sectional drawing which shows the problem of the said conventional example.

以下、本発明を図面に示す実施形態を参照して詳述する。
図１乃至図８に本発明の実施形態を示す。
実施形態の車載用の電気接続箱は自動車に搭載されるリレーボックス１であり、該リレーボックス１は上下開口のケース本体２内に上方からヒューズブロック４を挿入して収容した後、ケース本体２の下部にロアカバー５を組みつけている。ついで、リレーモジュール３からなる電子部品モジュールを上方からケース本体２内に挿入して収容し、その後、上部にアッパーカバー６を結合して組み立てている。樹脂成形品からなるケース本体２は外側壁２ａの内部をリレーモジュール３の収容部２ｂとヒューズブロック４の収容部２ｃに仕切壁２ｗで仕切っている。 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.
1 to 8 show embodiments of the present invention.
The vehicle-mounted electrical connection box of the embodiment is a relay box 1 mounted on an automobile, and the relay box 1 is housed by inserting a fuse block 4 from above into a case body 2 having an upper and lower opening, and then housing the case body 2. The lower cover 5 is attached to the lower part of the. Then, the electronic component module composed of the relay module 3 is inserted into the case body 2 from above to be housed, and then the upper cover 6 is coupled to the upper part for assembly. In the case body 2 made of a resin molded product, the inside of the outer wall 2a is partitioned by a partition wall 2w into an accommodating portion 2b of the relay module 3 and an accommodating portion 2c of the fuse block 4.

リレーモジュール３は、収容部２ｂに収容する縦長な直方体形状のハウジング１０内に、基板リレーを実装した回路基板１１を収納しており、該回路基板１１は基板リレーに接続する３つの基板コネクタ１２（１２Ａ、１２Ｂ、１２Ｃ）を図１（Ｂ）中で下端に並設している。これら基板コネクタ１２に電線３０を端末に接続した３つのコネクタ１５（１５Ａ、１５Ｂ、１５Ｃ）をそれぞれ嵌合し、回路基板１１を介して基板リレーと電線３０を接続している。 The relay module 3 houses a circuit board 11 on which a board relay is mounted in a vertically long rectangular housing 10 housed in a housing portion 2b, and the circuit board 11 has three board connectors 12 connected to the board relay. (12A, 12B, 12C) are arranged side by side at the lower end in FIG. 1 (B). Three connectors 15 (15A, 15B, 15C) in which the electric wire 30 is connected to the terminal are fitted to each of the board connectors 12, and the board relay and the electric wire 30 are connected via the circuit board 11.

ハウジング１０の外側壁１０ａにロック枠１０ｒを設けると共に収容部２ｂを囲む仕切壁２ｗおよび外側壁２ａの内面にロック爪（図示せず）を設けている。ハウジング１０が収容部２ｂ内の所定位置まで挿入されると、ロック爪がロック枠１０ｒに係止し、リレーモジュール３は収容部２ｂ内に固定されるものとしている。其の際、リレーモジュール３の下面に取り付けるコネクタ１５に接続する電線３０が収容部２ｂ内で噛み込みが発生し、ハウジング１０が所定位置まで挿入せずにロック結合できないと、電線３０が噛み込んでいる等の不具合が発生していることが解るようにしている。 A lock frame 10r is provided on the outer wall 10a of the housing 10, and a lock claw (not shown) is provided on the inner surface of the partition wall 2w and the outer wall 2a surrounding the accommodating portion 2b. When the housing 10 is inserted to a predetermined position in the housing portion 2b, the lock claw is locked to the lock frame 10r, and the relay module 3 is fixed in the housing portion 2b. At that time, if the electric wire 30 connected to the connector 15 attached to the lower surface of the relay module 3 is bitten in the accommodating portion 2b and the housing 10 cannot be locked without being inserted to a predetermined position, the electric wire 30 is bitten. I am trying to understand that a problem such as a connector has occurred.

リレーモジュール３のハウジング１０内に収容する回路基板１１の前記３つの基板コネクタ１２はハウジング１０の底壁１０ｂの長方形状の開口１０ｈの内部に間隔をあけて並ベて開口１０ｈに露出させている。かつ、ハウジング１０の図４中の上面となる側壁１０ｅには、３つの基板コネクタ１２に対応する位置に円弧状の切欠１０ｆを設け、開口１０ｈと連続させている。各切欠１０ｆにコネクタ１５のロック１５ｒを位置させ、コネクタ１５の着脱が容易に行えるようにしている。 The three board connectors 12 of the circuit board 11 housed in the housing 10 of the relay module 3 are arranged side by side at intervals inside the rectangular opening 10h of the bottom wall 10b of the housing 10 and exposed to the opening 10h. .. Further, the side wall 10e, which is the upper surface of the housing 10 in FIG. 4, is provided with an arc-shaped notch 10f at a position corresponding to the three substrate connectors 12 so as to be continuous with the opening 10h. The lock 15r of the connector 15 is positioned in each notch 10f so that the connector 15 can be easily attached and detached.

前記リレーモジュール３のハウジング１０の直方体形状の外側壁１０ａには、図４中で上面側を除く下面側および左右両側に底壁１０ｂよりコネクタ接続側へ突出した延長壁１８を設け、延長壁１８で窪んだ底壁１０ｂに露出するコネクタ嵌合部を囲んでいる。前記コネクタ１５を基板コネクタ１２に嵌合した状態で、該延長壁１８内にリテーナ２０を挿入してコネクタ１５が本嵌合か半嵌合かを検知できる嵌合検知部を有すると共に、コネクタ１５をリテーナ２０で下方から保持することで、コネクタ１５と接続した回路基板１１の脱落を保持できるようにしている。 The rectangular parallelepiped outer wall 10a of the housing 10 of the relay module 3 is provided with extension walls 18 protruding from the bottom wall 10b toward the connector connection side on both the lower surface side and the left and right sides except the upper surface side in FIG. 4, and the extension wall 18 is provided. Surrounds the connector fitting portion exposed on the bottom wall 10b recessed by. With the connector 15 fitted to the board connector 12, the retainer 20 is inserted into the extension wall 18 to have a fitting detection unit capable of detecting whether the connector 15 is fully fitted or semi-fitted, and the connector 15 is provided. Is held from below by the retainer 20 so that the circuit board 11 connected to the connector 15 can be held off.

リテーナ２０は図５および図６に示すように、細長い直方体形状で、長さ方向の一面（図５中の背面）に基板コネクタ１２に嵌合する３つのコネクタ１５の下面枠部１５ｆにそれぞれ接触する嵌合検知部２０ａ、２０ｂ、２０ｃを間隔を開けて突設している。これら嵌合検知部２０ａ〜２０ｃを図８（Ｃ）に示すように基板コネクタ１２に嵌合するコネクタ１５の下面枠部１５ｆに接触させるものとしている。 As shown in FIGS. 5 and 6, the retainer 20 has an elongated rectangular parallelepiped shape, and is in contact with the lower surface frame portion 15f of the three connectors 15 that are fitted to the substrate connector 12 on one surface (back surface in FIG. 5) in the length direction. The fitting detection portions 20a, 20b, and 20c are projected at intervals. As shown in FIG. 8C, the fitting detection portions 20a to 20c are brought into contact with the lower surface frame portion 15f of the connector 15 that is fitted to the substrate connector 12.

該リテーナ２０の長さ方向の両端２０ｄ、２０ｅは左右の延長壁１８ａと１８ｂと接触させた状態で挟まれ、該左右両端面に係止爪２１を設け、対向する延長壁１８ａ、１８ｂの内面に係止凹部１８ｖを設けている。リテーナ２０の係止爪２１は、図３（Ａ）および図８（Ａ）に示すようにコネクタ１５が基板コネクタ１２に完全に嵌合した本嵌合状態であると係止爪２１は延長壁１８の係止凹部１８ｖに係止して、リテーナ２０をハウジング１０に固定する。かつ、コネクタ１５がハウジング１０に固定されるリテーナ２０で下方より支持されることで、コネクタ１５と嵌合した基板コネクタ１２を設けた回路基板１１がハウジング１０より下方へ脱落することも防止できるようにしている。
一方、コネクタ１５が半嵌合状態であると、係止爪２１は係止凹部１８ｖに係止出来ず、コネクタ１５が完全に嵌合されていない半嵌合であることが作業者に解るようにしている。 Both ends 20d and 20e of the retainer 20 in the length direction are sandwiched in contact with the left and right extension walls 18a and 18b, and locking claws 21 are provided on the left and right end faces to provide inner surfaces of the opposing extension walls 18a and 18b. Is provided with a locking recess 18v. When the locking claw 21 of the retainer 20 is in the main fitting state in which the connector 15 is completely fitted to the board connector 12 as shown in FIGS. 3A and 8A, the locking claw 21 is an extension wall. The retainer 20 is fixed to the housing 10 by locking in the locking recess 18v of 18. Moreover, since the connector 15 is supported from below by the retainer 20 fixed to the housing 10, the circuit board 11 provided with the board connector 12 fitted with the connector 15 can be prevented from falling below the housing 10. I have to.
On the other hand, when the connector 15 is in the semi-fitted state, the locking claw 21 cannot be locked in the locking recess 18v, and the operator can understand that the connector 15 is not completely fitted. I have to.

前記リレーボックス１の組み立ては、図１（Ｂ）に示すように、回路基板１１を収容したリレーモジュール３の下面にコネクタ１５を嵌合する。この状態でリレーボックス１のケース本体２に上方からリレーモジュール３を挿入すると、ロアカバー５により下方からコネクタ１５の嵌合チェックができないため、ケース本体２の収容部２ｂに挿入前に図５に示すように、リレーモジュール３のハウジング１０の下部にリテーナ２０を挿入する。 Assembling the relay box 1 fits the connector 15 on the lower surface of the relay module 3 containing the circuit board 11 as shown in FIG. 1 (B). If the relay module 3 is inserted into the case body 2 of the relay box 1 from above in this state, the lower cover 5 cannot check the fitting of the connector 15 from below. Therefore, it is shown in FIG. 5 before being inserted into the accommodating portion 2b of the case body 2. As described above, the retainer 20 is inserted into the lower part of the housing 10 of the relay module 3.

その際、各コネクタ１５から下方に電線３０が引き出されており、リレーモジュール３のコネクタ嵌合部にコネクタ１５が完全に嵌合されている本嵌合状態であることを確認した後に、リレーモジュール３をケース本体２内に挿入する必要がある。そのため、図５に示すように、リテーナ２０をコネクタ１５を嵌合したハウジング１０の下部に挿入する。 At that time, after confirming that the electric wire 30 is pulled out downward from each connector 15 and the connector 15 is completely fitted to the connector fitting portion of the relay module 3, the relay module is in the main fitting state. 3 needs to be inserted into the case body 2. Therefore, as shown in FIG. 5, the retainer 20 is inserted into the lower part of the housing 10 in which the connector 15 is fitted.

コネクタ１５（１５Ａ〜１５Ｃ）が半嵌合ではなく、本嵌合であると、図３（Ａ）に示すように、寸法Ｌ１でハウジング１０の下端の底壁１０ｂより突出していると、リテーナ２０の嵌合検知部２０ａ〜２０ｃは係止爪２１が延長壁１８の係止凹部１８ｖに係止できる。よって、リテーナ２０はハウジング１０に固定され、コネクタ１５を下支えし、該コネクタ１５と嵌合する基板コネクタ１２を介して回路基板１１の脱落を防止できる。かつ、コネクタ１５から下方にのびる電線３０は延長壁１８で囲まれるため、電線が広がって隙間に電線３０の噛み込み発生も防止できる。 If the connectors 15 (15A to 15C) are not half-fitted but are fully fitted, as shown in FIG. 3A, if the connector 15 protrudes from the bottom wall 10b at the lower end of the housing 10 in dimension L1, the retainer 20 In the fitting detection portions 20a to 20c of the above, the locking claw 21 can be locked in the locking recess 18v of the extension wall 18. Therefore, the retainer 20 is fixed to the housing 10, supports the connector 15, and can prevent the circuit board 11 from falling off via the board connector 12 that fits with the connector 15. Moreover, since the electric wire 30 extending downward from the connector 15 is surrounded by the extension wall 18, it is possible to prevent the electric wire from spreading and getting caught in the gap.

一方、３つのコネクタ１５Ａ〜１５Ｃのいずれかが半嵌合で、図３（Ｂ）に示すように、寸法Ｌ１より大きな寸法Ｌ２でハウジング１０の底壁１０ｂより突出していると、リテーナ２０は図８（Ｂ）に示すように係止爪２１は係止凹部１８ｖに係止できず、コネクタ１５が半嵌合であることを検知できる。よって、ケース本体２の収容部２ｂに挿入する前にコネクタ１５を完全に嵌合しなおすことが出来る。 On the other hand, when any of the three connectors 15A to 15C is half-fitted and protrudes from the bottom wall 10b of the housing 10 with a size L2 larger than the size L1 as shown in FIG. 3B, the retainer 20 is shown in FIG. As shown in 8 (B), the locking claw 21 cannot be locked in the locking recess 18v, and it can be detected that the connector 15 is half-fitted. Therefore, the connector 15 can be completely refitted before being inserted into the accommodating portion 2b of the case body 2.

前記実施形態はリレーボックスのケース本体に設けた収容部に、電線をコネクタ接続したリレーモジュール３を挿入する場合に採用しているが、該形態に限定されず、機器にコネクタ接続した電子部品のコネクタ嵌合状態を検知する場合および検知すると共に該電子部品に収容した回路基板を支える場合にも好適に用いられるものである。 The embodiment is adopted when the relay module 3 in which the electric wire is connected to the connector is inserted into the accommodating portion provided in the case body of the relay box, but the present invention is not limited to this embodiment, and the electronic component connected to the device by the connector is not limited to this embodiment. It is suitably used when detecting a connector fitting state and when detecting and supporting a circuit board housed in the electronic component.

１ リレーボックス
２ ケース本体
２ａ 外側壁
２ｂ、２ｃ 収容部
２ｗ 仕切壁
３ リレーモジュール
４ ヒューズブロック
５ ロアカバー
６ アッパーカバー
１０ ハウジング
１１ 回路基板
１２ 基板コネクタ
１５（１５Ａ、１５Ｂ、１５Ｃ） コネクタ
１８ 延長壁
１８ｖ 係止凹部
２０ リテーナ
２０ａ〜２０ｃ 嵌合検知部
２１ 係止爪
３０ 電線 1 Relay box 2 Case body 2a Outer side wall 2b, 2c Storage part 2w Partition wall 3 Relay module 4 Fuse block 5 Lower cover
6 Upper cover 10 Housing 11 Circuit board 12 Board connector 15 (15A, 15B, 15C) Connector 18 Extension wall 18v Locking recess 20 Retainer 20a to 20c Fitting detection part 21 Locking claw 30 Electric wire

Claims (3)

電気接続箱のケース本体の上下開口の収容部内に上方から電子部品モジュールが挿入固定され、該電子部品モジュールに収容された回路基板の下端のコネクタに電線端末に接続された相手方のコネクタが嵌合され、
前記電子部品モジュールのハウジングの外側壁の下端に、前記コネクタの電線接続側へ突出する延長壁を備え、かつ、
前記コネクタの電線接続側枠に接触する嵌合検知部を有すると共に該コネクタが本嵌合位置にあると前記延長壁と係止できるリテーナを備えていることを特徴とする車載用の電気接続箱。 The electronic component module is inserted and fixed from above into the housing of the upper and lower openings of the case body of the electric junction box, and the connector of the other party connected to the electric wire terminal is fitted to the connector at the lower end of the circuit board housed in the electronic component module. Being done
At the lower end of the outer wall of the housing of the electronic component module, an extension wall protruding toward the electric wire connection side of the connector is provided, and
An in-vehicle electric connection box having a fitting detection unit that contacts the electric wire connection side frame of the connector and a retainer that can be locked to the extension wall when the connector is in the main fitting position. .. 前記電子部品モジュールのハウジングの前記外側壁にロック部を備え、該ロック部と結合する被ロック部を前記ケース本体の収容部の内面に備え、
前記リテーナは前記コネクタと対応する位置に各コネクタの電線接続側枠に接触する嵌合検知部を段状に備え、該嵌合検知部の突出方向と直交方向の両側外面に係止部を設け、該係止部と係止する被係止部を前記延長壁の内面に設け、前記コネクタが半嵌合であると前記係止部と被係止部は係止出来ない構成としている請求項１に記載の車載用の電気接続箱。 A lock portion is provided on the outer wall of the housing of the electronic component module, and a locked portion to be coupled to the lock portion is provided on the inner surface of the accommodating portion of the case body.
The retainer is provided with a fitting detection portion that contacts the electric wire connection side frame of each connector at a position corresponding to the connector in a stepped manner, and locking portions are provided on both outer surfaces in a direction orthogonal to the protruding direction of the fitting detection portion. The locking portion is provided on the inner surface of the extension wall so that the locking portion and the locked portion cannot be locked if the connector is semi-fitted. The vehicle-mounted electrical connector according to 1. 前記電気接続箱はリレーボックスであり、該リレーボックスのケース本体内の収容部に挿入する前記電子部品モジュールはリレーモジュールからなる請求項１または請求項２に記載の車載用の電気接続箱。 The vehicle-mounted electrical connection box according to claim 1 or 2, wherein the electrical connection box is a relay box, and the electronic component module inserted into the accommodating portion in the case body of the relay box comprises a relay module.
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