JP5510898B2 - Electrical junction box - Google Patents

Electrical junction box Download PDF

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JP5510898B2
JP5510898B2 JP2010148779A JP2010148779A JP5510898B2 JP 5510898 B2 JP5510898 B2 JP 5510898B2 JP 2010148779 A JP2010148779 A JP 2010148779A JP 2010148779 A JP2010148779 A JP 2010148779A JP 5510898 B2 JP5510898 B2 JP 5510898B2
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connector
electric wire
female connector
male connector
female
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JP2012016117A (en
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逸郎 吉川
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Sumitomo Wiring Systems Ltd
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Description

本発明は、自動車等に搭載される電気接続箱に係り、電線の端末に設けられたコネクタを収容するコネクタ収容部を備えた電気接続箱に関するものである。   The present invention relates to an electrical junction box mounted on an automobile or the like, and relates to an electrical junction box provided with a connector accommodating portion that accommodates a connector provided at an end of an electric wire.

従来から、リレーボックスやヒューズボックス等の電気接続箱には、ワイヤーハーネス等の電線の端末に設けられたコネクタがコネクタ収容部に収容されるものがある。このような電気接続箱の中には、例えば特開２００６−７４８９３号公報（特許文献１）に記載されているように、互いに嵌合する雄コネクタと雌コネクタが、電気接続箱の上下両方向からコネクタ収容部に差し込まれて、コネクタ収容部内で相互に嵌合されるものがある。   2. Description of the Related Art Conventionally, some electrical connection boxes such as a relay box and a fuse box accommodate a connector provided at a terminal of an electric wire such as a wire harness in a connector housing portion. In such an electrical connection box, for example, as described in Japanese Patent Application Laid-Open No. 2006-74893 (Patent Document 1), a male connector and a female connector that are fitted to each other are provided from both the upper and lower directions of the electrical connection box. Some are inserted into the connector housing and are fitted together in the connector housing.

ところで、特に特許文献１や特開２００９−７７４８６号公報（特許文献２）に記載されている電気接続箱は、電気接続箱の上方から接続される一方のコネクタの電線が折り返されて、電気接続箱の下方に引き延ばされるようになっている。   By the way, in particular, in the electrical connection box described in Patent Document 1 and Japanese Patent Application Laid-Open No. 2009-77486 (Patent Document 2), the electrical connection of one connector connected from the upper side of the electrical connection box is folded, and the electrical connection is performed. It is extended below the box.

このような電気接続箱では、上方から接続されるコネクタの電線を下方へ回りこませるために、電気接続箱の上下を連通する電線挿通部をコネクタ収容部の外に設けなければならず、電気接続箱の大型化を招いていた。また、電気接続箱の上方からコネクタを接続する際には、前記電線挿通部に電線を通して、コネクタを電気接続箱の下方から上方に回りこませなければならず、接続作業に手間を要していた。   In such an electric connection box, in order to wrap the electric wire of the connector connected from above downward, an electric wire insertion part that communicates the upper and lower sides of the electric connection box must be provided outside the connector housing part. The connection box was enlarged. Further, when connecting the connector from the upper side of the electrical connection box, the connector must be routed upward from the lower side of the electrical connection box by passing the electric wire through the electric wire insertion portion, which takes time and labor. It was.

特開２００６−７４８９３号公報JP 2006-74893 A 特開２００９−７７４８６号公報JP 2009-77486 A

本発明は、上述の事情を背景に為されたものであって、その解決課題は、雄コネクタと雌コネクタが上下両方向からコネクタ収容部に差し込まれて相互に接続される電気接続箱において、更なる小型化を図ることが出来ると共に、接続作業性の向上を図ることの出来る、新規な構造の電気接続箱を提供することにある。   The present invention has been made in the background of the above-described circumstances, and the problem to be solved thereof is an electrical connection box in which a male connector and a female connector are inserted into the connector housing portion from both the upper and lower directions and connected to each other. It is an object of the present invention to provide an electrical junction box having a novel structure that can achieve downsizing and improve connection workability.

本発明の第一の態様は、電線端末に設けられた雄コネクタと雌コネクタが収容されるコネクタ収容部を備えた電気接続箱において、前記コネクタ収容部は、下方に開口部を有する筒状の支持筒部と該支持筒部の外周面に開口して前記開口部から上方に向かって延びる電線退避部とを備えており、前記支持筒部の前記開口部から、前記雄コネクタと前記雌コネクタが互いに嵌め合わされた状態で挿入されて前記支持筒部内に収容保持されると共に、前記コネクタ収容部への挿入方向で前方に位置する前記雄コネクタ又は前記雌コネクタから延びる前記電線が前記電線退避部に挿通されるようになっていることを、特徴とする。   According to a first aspect of the present invention, in the electrical junction box including a connector housing portion in which the male connector and the female connector provided in the electric wire terminal are housed, the connector housing portion has a cylindrical shape having an opening portion below. A support tube portion and an electric wire retracting portion that opens to an outer peripheral surface of the support tube portion and extends upward from the opening portion, and the male connector and the female connector are provided from the opening portion of the support tube portion. Are inserted and held in the support cylinder part, and the electric wire extending from the male connector or the female connector located forward in the insertion direction to the connector accommodating part is the electric wire retracting part. It is characterized by being inserted through.

本発明に従う構造とされた電気接続箱によれば、雄コネクタと雌コネクタを電気接続箱外で予め嵌合して、嵌合状態で支持筒部の下方の開口部から差し込むことが出来る。そして、挿入方向で前方に位置するコネクタの電線を支持筒部の外周面に開口された電線退避部に挿通して支持筒部外に逃すことにより、電線に邪魔されることなく雌雄コネクタを支持筒部に差し込むことが出来る。それと共に、上方に位置されたコネクタの電線を電線退避部を通して下方に引き延ばすことが出来る。   According to the electrical junction box having the structure according to the present invention, the male connector and the female connector can be fitted in advance outside the electrical junction box, and can be inserted from the lower opening of the support cylinder in the fitted state. The male and female connectors are supported without being obstructed by the electric wires by inserting the electric wires of the connector located forward in the insertion direction into the electric wire retracting portion opened in the outer peripheral surface of the supporting cylindrical portion and letting it out of the supporting cylindrical portion. Can be inserted into the tube. At the same time, the electric wire of the connector positioned at the upper side can be extended downward through the electric wire retracting portion.

その結果、支持筒部の外に電線を挿通する電線挿通部を設けることなく、上方に位置されるコネクタの電線を下方に引き延ばすことが可能となり、電気接続箱の小型化を図ることが出来ると共に、電線挿通部の形成スペースを考慮することも不要とされることから、設計自由度も向上することが出来る。更に、雄コネクタと雌コネクタを電気接続箱の外で予め嵌合してコネクタ収容部に一度に差し込むことが可能であり、上方に位置されるコネクタを電気接続箱の下方から上方に回り込ませる手間も不要となることから、コネクタの組み付け作業性を向上することが出来る。このような電気接続箱は、予め雄コネクタと雌コネクタを組み付けた状態で提供する場合等に、特に好適に用いることが出来る。   As a result, it is possible to extend the electric wire of the connector positioned above without providing an electric wire insertion portion for inserting the electric wire outside the support cylinder portion, and it is possible to reduce the size of the electric junction box. Moreover, since it is not necessary to consider the space for forming the wire insertion portion, the degree of freedom in design can be improved. Furthermore, the male connector and the female connector can be pre-fitted outside the electric connection box and inserted into the connector housing at once, and the trouble of turning the upper connector from the lower side of the electric connection box upward Therefore, the workability of assembling the connector can be improved. Such an electrical junction box can be particularly suitably used when providing a male connector and a female connector assembled in advance.

本発明の第二の態様は、前記第一の態様に記載のものにおいて、前記コネクタ収容部には、互いに嵌め合わされた前記雄コネクタと前記雌コネクタに係合するロック機構が設けられているものである。   According to a second aspect of the present invention, in the first aspect, the connector housing portion is provided with a lock mechanism that engages with the male connector and the female connector fitted to each other. It is.

このようにすれば、嵌合状態とされた雄コネクタと雌コネクタを、コネクタ収容部内で保持することが出来る。なお、本態様におけるロック機構は、雄コネクタと雌コネクタの両方に直接に係合する必要は無く、嵌合状態とされた雄コネクタと雌コネクタの何れか一方に係合することによって、雄コネクタと雌コネクタの両方を保持するものでも良い。   If it does in this way, the male connector and female connector which were made into the fitting state can be hold | maintained in a connector accommodating part. Note that the locking mechanism in this aspect does not need to be directly engaged with both the male connector and the female connector, but can be engaged with either the male connector or the female connector in the fitted state. It may hold both the female connector and the female connector.

本発明によれば、下方に開口部を有する支持筒部を設けると共に、該支持筒部に、外周面に開口して上下に延びる電線退避部を設けた。これにより、雄コネクタと雌コネクタを嵌合状態で開口部から支持筒部に挿入すると共に、挿入方向で前方に位置するコネクタの電線を電線退避部に挿通して支持筒部外に退避させることが出来る。その結果、雄コネクタと雌コネクタを電気接続箱外で予め嵌合して電気接続箱に一度に組み付けることが出来、コネクタ組み付けの作業効率を高めることが出来る。それと共に、上方に位置するコネクタの電線を電線退避部を通じて下方に引き延ばすことが可能となることから、電線を引き回すためのスペースをコネクタ収容部の外に設けることも不要となり、電気接続箱の小型化を図ることが出来る。   According to this invention, while providing the support cylinder part which has an opening part below, the electric wire retracting part which opened to the outer peripheral surface and extended up and down was provided in this support cylinder part. As a result, the male connector and the female connector are inserted into the support tube portion from the opening in a fitted state, and the electric wire of the connector positioned forward in the insertion direction is inserted into the wire retracting portion and retracted outside the support tube portion. I can do it. As a result, the male connector and the female connector can be fitted in advance outside the electrical connection box and assembled to the electrical connection box at a time, and the work efficiency of the connector assembly can be improved. At the same time, since it is possible to extend the electric wire of the connector located above through the electric wire retracting portion, it is not necessary to provide a space for routing the electric wire outside the connector housing portion. Can be achieved.

本発明の一実施形態としての電気接続箱のコネクタ収容部と、これに組み付けられる雄コネクタおよび雌コネクタを示す説明図。Explanatory drawing which shows the connector accommodating part of the electrical junction box as one Embodiment of this invention, and the male connector and female connector assembled | attached to this. 図１に示したコネクタ収容部の上面図。The top view of the connector accommodating part shown in FIG. 図２におけるＩＩＩ−ＩＩＩ断面図。III-III sectional drawing in FIG. 雄コネクタおよび雌コネクタを収容した状態の、図３に対応する断面図。Sectional drawing corresponding to FIG. 3 in the state which accommodated the male connector and the female connector. 雄コネクタおよび雌コネクタを収容した状態の、図１に対応する説明図。Explanatory drawing corresponding to FIG. 1 of the state which accommodated the male connector and the female connector. 本発明の異なる態様としての電気接続箱のコネクタ収容部を示す、図２に対応する説明図。Explanatory drawing corresponding to FIG. 2 which shows the connector accommodating part of the electrical-connection box as a different aspect of this invention.

以下、本発明の実施形態について、図面を参照しつつ説明する。   Embodiments of the present invention will be described below with reference to the drawings.

先ず、図１に、本発明の一実施形態としての電気接続箱１０の要部と、該要部に設けられたコネクタ収容部１２に収容される、雄コネクタ１４および雌コネクタ１６が嵌合されてなるコネクタ嵌合体１８を併せ示す。   First, in FIG. 1, a male connector 14 and a female connector 16 accommodated in a main part of an electrical junction box 10 as an embodiment of the present invention and a connector housing part 12 provided in the main part are fitted. A connector fitting body 18 is also shown.

電気接続箱１０は例えばリレーボックスであり、非導電性の合成樹脂から形成されている。この電気接続箱１０の適宜の位置には、コネクタ収容部１２が設けられている。なお、コネクタ収容部１２は、電気接続箱１０に複数設けられていても良い。   The electrical connection box 10 is a relay box, for example, and is formed from a non-conductive synthetic resin. A connector housing portion 12 is provided at an appropriate position of the electrical connection box 10. Note that a plurality of connector housing portions 12 may be provided in the electrical connection box 10.

図２および図３に、コネクタ収容部１２を示す。コネクタ収容部１２は、支持筒部２０を有している。支持筒部２０は、電気接続箱１０の上方（図３中、上方）に開口する上方開口部２２と、電気接続箱１０の下方（図３中、下方）に開口する下方開口部２４を有し、電気接続箱１０の上下に延びる略矩形の筒形状とされている。支持筒部２０の上端縁部において、対向する一対の両側部分には、支持筒部２０の内方に突出する係止片部２６，２６が形成されている。   2 and 3 show the connector housing portion 12. The connector housing part 12 has a support cylinder part 20. The support cylinder part 20 has an upper opening 22 that opens above the electrical connection box 10 (upward in FIG. 3) and a lower opening 24 that opens below the electrical connection box 10 (downward in FIG. 3). And it is set as the substantially rectangular cylinder shape extended up and down of the electrical-connection box 10. As shown in FIG. At the upper end edge of the support cylinder part 20, locking piece parts 26, 26 projecting inward of the support cylinder part 20 are formed at a pair of opposing side parts.

そして、支持筒部２０において、係止片部２６，２６が形成された側と直交して対向する一方の外周壁２８ａには、電線退避部３０が形成されている。電線退避部３０は、外周壁２８ａを貫通して下方開口部２４から電気接続箱１０の上方に向けて延びるスリット形状とされており、外周壁２８ａの幅方向（図２中、上下方向）中央部分に形成されている。これにより、電線退避部３０は、支持筒部２０における外周壁２８ａの外周面３２上に開口されている。また、電線退避部３０は外周壁２８ａの上下方向の全長に亘って形成されており、支持筒部２０の下方と上方にも開口されている。更に、電線退避部３０は、一定の溝幅寸法：ｗをもって形成されており、この溝幅寸法：ｗは、後述する雌コネクタ１６から延びる電線６０の径寸法よりも大きくされている。   And in the support cylinder part 20, the electric wire retracting part 30 is formed in one outer peripheral wall 28a which opposes orthogonally to the side in which the locking piece parts 26 and 26 were formed. The wire retracting portion 30 has a slit shape that extends through the outer peripheral wall 28a from the lower opening 24 toward the upper side of the electrical junction box 10, and is centered in the width direction (vertical direction in FIG. 2) of the outer peripheral wall 28a. It is formed in the part. Thereby, the electric wire retracting portion 30 is opened on the outer peripheral surface 32 of the outer peripheral wall 28 a in the support cylinder portion 20. Further, the wire retracting portion 30 is formed over the entire length of the outer peripheral wall 28 a in the vertical direction, and is also opened below and above the support cylinder portion 20. Further, the wire retracting portion 30 is formed with a constant groove width dimension: w, and this groove width dimension: w is larger than the diameter dimension of the electric wire 60 extending from the female connector 16 described later.

一方、外周壁２８ａと対向する外周壁２８ｂは、外方に突出して位置されており、この外周壁２８ｂの内面３４には、ロック機構としての係止爪３６が一体形成されている。係止爪３６は、内面３４から内方に突出する連結部３８と、連結部３８から上方に延びる板ばねとされたばね部４０を有している。ばね部４０は、連結部３８から上方に行くに連れて、支持筒部２０の内方に突出する傾斜案内面４２を有する板形状とされている。そして、ばね部４０の上端面が、支持筒部２０の上下方向に直交して広がる平坦な係止面４４とされている。また、係止面４４において外周壁２８ｂ側の端縁部には、上方に突出する立壁状の位置決め突起４６が形成されている。   On the other hand, the outer peripheral wall 28b opposite to the outer peripheral wall 28a is located so as to protrude outward, and a locking claw 36 as a locking mechanism is integrally formed on the inner surface 34 of the outer peripheral wall 28b. The locking claw 36 has a connecting portion 38 that protrudes inward from the inner surface 34, and a spring portion 40 that is a leaf spring extending upward from the connecting portion 38. The spring portion 40 has a plate shape having an inclined guide surface 42 that protrudes inward of the support tube portion 20 as it goes upward from the connecting portion 38. And the upper end surface of the spring part 40 is made into the flat latching surface 44 which spreads orthogonally to the up-down direction of the support cylinder part 20. As shown in FIG. In addition, a standing wall-like positioning projection 46 that protrudes upward is formed at an end edge of the locking surface 44 on the outer peripheral wall 28b side.

図１に示したように、このようなコネクタ収容部１２には、雄コネクタ１４と雌コネクタ１６を嵌合したコネクタ嵌合体１８が差し込まれる。これら雄コネクタ１４および雌コネクタ１６は従来公知のものであることから、詳細な図示は省略するが、雄コネクタ１４はフード部４８を有しており、このフード部４８内に図示しない雄端子が突設されている。なお、雄コネクタ１４は、フード部４８が外方に突出されて段差面５０を有する段付形状とされている。一方、雌コネクタ１６内には図示しない雌端子が設けられている。そして、雌コネクタ１６が雄コネクタ１４のフード部４８に差し込まれることによって、雄コネクタ１４の雄端子と雌コネクタ１６の雌端子が相互に接続されるようになっている。   As shown in FIG. 1, a connector fitting body 18 in which a male connector 14 and a female connector 16 are fitted is inserted into such a connector housing portion 12. Since the male connector 14 and the female connector 16 are conventionally known, detailed illustration is omitted, but the male connector 14 has a hood portion 48, and a male terminal (not shown) is provided in the hood portion 48. Projected. The male connector 14 has a stepped shape in which the hood portion 48 protrudes outward and has a stepped surface 50. On the other hand, a female terminal (not shown) is provided in the female connector 16. When the female connector 16 is inserted into the hood portion 48 of the male connector 14, the male terminal of the male connector 14 and the female terminal of the female connector 16 are connected to each other.

なお、後に説明する図４に示すように、雄コネクタ１４のフード部４８の上端縁部には、内方に突出するフード側突起５２が形成されている一方、雌コネクタ１６の外周面には板ばねとされた操作片５４が形成されており、操作片５４においてフード側突起５２と対応する位置に、操作片側突起５６が形成されている。そして、雌コネクタ１６がフード部４８に差し込まれるに際して、フード側突起５２と操作片側突起５６との案内作用によって操作片５４が雌コネクタ１６の本体側に撓まされて、操作片側突起５６がフード側突起５２を乗り越えることによって、操作片側突起５６とフード側突起５２が係合して雌コネクタ１６をフード部４８から抜け出し不能に嵌合出来るようになっている。   As shown in FIG. 4 to be described later, a hood-side protrusion 52 that protrudes inward is formed on the upper edge of the hood portion 48 of the male connector 14, while the outer peripheral surface of the female connector 16 is formed on the outer peripheral surface of the female connector 16. An operation piece 54 that is a leaf spring is formed, and an operation piece side protrusion 56 is formed at a position corresponding to the hood side protrusion 52 in the operation piece 54. When the female connector 16 is inserted into the hood portion 48, the operation piece 54 is bent toward the main body side of the female connector 16 by the guiding action of the hood side protrusion 52 and the operation piece side protrusion 56, and the operation piece side protrusion 56 becomes hood. By getting over the side protrusion 52, the operation piece side protrusion 56 and the hood side protrusion 52 are engaged with each other so that the female connector 16 can be fitted out of the hood portion 48 so that it cannot be pulled out.

さらに、図１に示したように、雄コネクタ１４および雌コネクタ１６は、それぞれ、電線５８，６０の端末に設けられており、雄コネクタ１４から電線５８が延び出されている一方、雌コネクタ１６から電線６０が延び出されている。特に本実施形態においては、これら電線５８，６０は、一本のワイヤーハーネス６２から延び出されている。   Further, as shown in FIG. 1, the male connector 14 and the female connector 16 are provided at the ends of the electric wires 58 and 60, respectively, and the electric wire 58 extends from the male connector 14, while the female connector 16. The electric wire 60 is extended from. In particular, in the present embodiment, these electric wires 58 and 60 are extended from a single wire harness 62.

これら雄コネクタ１４と雌コネクタ１６を電気接続箱１０に組み付ける場合には、先ず、図１に示したように、電気接続箱１０外で、雄コネクタ１４と雌コネクタ１６を互いに嵌合してコネクタ嵌合体１８とする。なお、雌コネクタ１６から延び出す電線６０は、雄コネクタ１４側に折り返されて、雄コネクタ１４から延び出す電線５８と同方向に延び出される。また、雌コネクタ１６から延び出す電線６０は、必要に応じて、テープ６４で巻き付ける等して雄コネクタ１４に固定される。   When assembling the male connector 14 and the female connector 16 to the electrical connection box 10, first, as shown in FIG. 1, the male connector 14 and the female connector 16 are fitted to each other outside the electrical connection box 10, and the connector is connected. The fitting body 18 is assumed. The electric wire 60 extending from the female connector 16 is folded back to the male connector 14 side and extended in the same direction as the electric wire 58 extending from the male connector 14. In addition, the electric wire 60 extending from the female connector 16 is fixed to the male connector 14 by, for example, wrapping with a tape 64 as necessary.

このようなコネクタ嵌合体１８が、コネクタ収容部１２における支持筒部２０に対して、下方開口部２４（図３参照）から挿入される。コネクタ嵌合体１８は、雌コネクタ１６を挿入方向の前方に位置して、雌コネクタ１６から支持筒部２０に挿入される。コネクタ嵌合体１８を支持筒部２０に挿入するに際して、雌コネクタ１６の電線６０は、電線退避部３０に挿通される。これにより、電線６０が支持筒部２０外に退避されて、コネクタ嵌合体１８を電線６０に邪魔されることなく支持筒部２０に挿入することが出来る。   Such a connector fitting body 18 is inserted into the support cylinder portion 20 in the connector housing portion 12 from the lower opening 24 (see FIG. 3). The connector fitting body 18 is inserted from the female connector 16 into the support cylinder portion 20 with the female connector 16 positioned in the front in the insertion direction. When the connector fitting body 18 is inserted into the support cylinder portion 20, the electric wire 60 of the female connector 16 is inserted into the electric wire retracting portion 30. Thereby, the electric wire 60 is retracted out of the support cylinder portion 20, and the connector fitting body 18 can be inserted into the support cylinder portion 20 without being obstructed by the electric wire 60.

そして、コネクタ嵌合体１８が支持筒部２０に挿入されることによって、雄コネクタ１４のフード部４８がばね部４０の傾斜案内面４２（図３参照）に接触する。これにより、ばね部４０が外周壁２８ｂ側に撓まされる。更に、フード部４８がばね部４０の係止面４４よりも上方に位置した時点でばね部４０が復帰する。その結果、図４に示すように、雄コネクタ１４の段差面５０とばね部４０の係止面４４が相互に係合することにより、コネクタ嵌合体１８が支持筒部２０内で下方への抜け出し不能に保持される。なお、図４においては、電線５８，６０およびワイヤーハーネス６２を省略して示す。また、ばね部４０の位置決め突起４６がフード部４８の外面に係合することによって、コネクタ嵌合体１８が支持筒部２０内で位置決めされる。このようにして、コネクタ嵌合体１８がコネクタ収容部１２内に収容される。   Then, when the connector fitting body 18 is inserted into the support cylinder portion 20, the hood portion 48 of the male connector 14 comes into contact with the inclined guide surface 42 (see FIG. 3) of the spring portion 40. Thereby, the spring part 40 is bent to the outer peripheral wall 28b side. Further, when the hood portion 48 is positioned above the locking surface 44 of the spring portion 40, the spring portion 40 returns. As a result, as shown in FIG. 4, the stepped surface 50 of the male connector 14 and the locking surface 44 of the spring portion 40 are engaged with each other, so that the connector fitting body 18 is pulled out downward in the support cylinder portion 20. Held impossible. In FIG. 4, the electric wires 58 and 60 and the wire harness 62 are omitted. Further, the connector fitting body 18 is positioned in the support cylinder portion 20 by the positioning protrusion 46 of the spring portion 40 engaging the outer surface of the hood portion 48. In this manner, the connector fitting body 18 is accommodated in the connector accommodating portion 12.

図５に示すように、コネクタ収容部１２への収容状態で、雌コネクタ１６から延びる電線６０は、電線退避部３０を通じて下方へ折り返されて、雄コネクタ１４から延びる電線５８と同様に電気接続箱１０の下方に引き出されるようになっている。また、コネクタ収容部１２への収容状態で、雄コネクタ１４の上方には、支持筒部２０の上端縁部に設けられた係止片部２６，２６が位置されている。これにより、コネクタ嵌合体１８が上方に変位した際には、係止片部２６，２６が雄コネクタ１４に係合することによってコネクタ嵌合体１８の上方への抜けが阻止されるようになっている。   As shown in FIG. 5, the electric wire 60 extending from the female connector 16 is folded downward through the electric wire retracting portion 30 in the accommodated state in the connector accommodating portion 12, and the electric junction box is similar to the electric wire 58 extending from the male connector 14. 10 is pulled out below. Further, in the state of being accommodated in the connector accommodating portion 12, the locking piece portions 26, 26 provided on the upper end edge portion of the support cylinder portion 20 are positioned above the male connector 14. As a result, when the connector fitting body 18 is displaced upward, the locking pieces 26 and 26 are engaged with the male connector 14 so that the connector fitting body 18 is prevented from coming off upward. Yes.

このような構造とされた電気接続箱１０によれば、相互に嵌合された雄コネクタ１４および雌コネクタ１６をコネクタ収容部１２の支持筒部２０に挿入するに際して、雌コネクタ１６から延びる電線６０を電線退避部３０に挿通して支持筒部２０外に逃すことが出来る。これにより、雄コネクタ１４と雌コネクタ１６を電気接続箱１０外で予め嵌合した状態で、コネクタ収容部１２の支持筒部２０に挿入することが出来る。その結果、従来のように、雌コネクタ１６を電気接続箱１０の下方から上方に回り込ませてコネクタ収容部１２に収容する手間を不要とすることが出来て、雌雄コネクタ１４，１６のコネクタ収容部１２への組み付けを効率良く行なうことが出来る。また、雄コネクタ１４と雌コネクタ１６の嵌合を電気接続箱１０の外で行なえることから、両コネクタ１４，１６をより確実に嵌合することが出来る。そして、雌コネクタ１６の電線６０を電線退避部３０を通じて電気接続箱１０の下方に引き延ばすことが可能となることから、電線６０を下方に回り込ませるためのスペースをコネクタ収容部１２の外に設けることが不要となり、より優れたスペース効率を得ることが出来、電気接続箱１０の設計自由度を向上することが出来る。   According to the electrical connection box 10 having such a structure, when the male connector 14 and the female connector 16 fitted to each other are inserted into the support cylinder portion 20 of the connector housing portion 12, the electric wire 60 extending from the female connector 16 is provided. Can be inserted into the wire retracting portion 30 and escaped to the outside of the support cylinder portion 20. As a result, the male connector 14 and the female connector 16 can be inserted into the support tube portion 20 of the connector housing portion 12 in a state in which the male connector 14 and the female connector 16 are previously fitted outside the electrical connection box 10. As a result, it is possible to eliminate the need to wrap the female connector 16 upward from below the electrical connection box 10 and accommodate it in the connector accommodating portion 12 as in the prior art. Assembling to 12 can be performed efficiently. Further, since the male connector 14 and the female connector 16 can be fitted outside the electrical connection box 10, both the connectors 14 and 16 can be fitted more reliably. And since it becomes possible to extend the electric wire 60 of the female connector 16 to the downward direction of the electrical junction box 10 through the electric wire retracting part 30, the space for making the electric wire 60 wrap around below is provided outside the connector accommodating part 12. Can be obtained, more excellent space efficiency can be obtained, and the degree of freedom in designing the electrical junction box 10 can be improved.

さらに、本実施形態においては、支持筒部２０内に設けられた係止爪３６によって、コネクタ嵌合体１８の下方への抜けを阻止すると共に、支持筒部２０の上端縁部に設けられた係止片部２６，２６でコネクタ嵌合体１８の上方への抜けが阻止されている。これにより、雄コネクタ１４および雌コネクタ１６をコネクタ収容部１２内で安定して保持することが可能とされている。また、支持筒部２０は、上方開口部２２を通じて上方に開口されていることから、例えば雌コネクタ１６の操作片５４を操作して雄コネクタ１４から切り離し、雌コネクタ１６のみを上方開口部２２を通じてコネクタ収容部１２から抜去したり、上方開口部２２からコネクタ収容部１２に差し込んでコネクタ収容部１２内の雄コネクタ１４と接続するという従来通りの操作も可能とされており、メンテナンス性の向上も図ることが出来る。   Further, in the present embodiment, the locking claw 36 provided in the support cylinder portion 20 prevents the connector fitting body 18 from being pulled downward, and the engagement provided at the upper edge of the support cylinder portion 20. The stopper pieces 26, 26 prevent the connector fitting body 18 from coming off upward. Thereby, the male connector 14 and the female connector 16 can be stably held in the connector housing portion 12. Further, since the support cylinder portion 20 is opened upward through the upper opening portion 22, for example, the operation piece 54 of the female connector 16 is operated to be disconnected from the male connector 14, and only the female connector 16 is passed through the upper opening portion 22. The conventional operation of removing from the connector housing portion 12 or inserting into the connector housing portion 12 through the upper opening 22 to connect to the male connector 14 in the connector housing portion 12 is also possible, and the maintenance is improved. I can plan.

以上、本発明の実施形態について詳述したが、本発明はその具体的な記載によって限定されない。例えば、電線退避部は前記実施形態の如きスリット形状に限定されるものではなく、図６に前述の図３と同一の符号を付して示すように、支持筒部２０の上下方向に延びると共に、上下両側に開口する長孔形状等であっても良い。本態様においては、支持筒部２０における外周面３２上の開口が外壁６６で覆われることとなり、このようにすれば、雌コネクタ１６から延びる電線６０の支持筒部２０外への過大な突出を避けることが出来る。   As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, the wire retracting portion is not limited to the slit shape as in the above embodiment, and extends in the vertical direction of the support tube portion 20 as shown in FIG. 6 with the same reference numerals as in FIG. Further, it may have a long hole shape that opens on both the upper and lower sides. In this aspect, the opening on the outer peripheral surface 32 in the support cylinder part 20 is covered with the outer wall 66, and in this way, an excessive protrusion of the electric wire 60 extending from the female connector 16 to the outside of the support cylinder part 20 is prevented. Can be avoided.

また、支持筒部は、少なくとも下方に開口されておれば良く、前記実施形態における上方開口部２２は必ずしも必要ではない。更に、雄コネクタと雌コネクタを支持筒部内で保持するロック機構の具体的形状は、両コネクタの具体的形状等に応じて適宜に設定され得るものであると共に、雄コネクタと雌コネクタは従来公知のものが適宜に採用可能であって、前記実施形態の形状に限定されるものではない。   Moreover, the support cylinder part should just be opened below at least, and the upper opening part 22 in the said embodiment is not necessarily required. Further, the specific shape of the locking mechanism for holding the male connector and the female connector in the support cylinder portion can be appropriately set according to the specific shape of the both connectors, and the male connector and the female connector are conventionally known. Can be adopted as appropriate, and is not limited to the shape of the embodiment.

また、本発明は、リレーボックスに限定して適用されるものではなく、ヒューズボックスやジャンクションボックス等、コネクタ収容部を有する各種の電気接続箱に広く適用することが出来る。   Further, the present invention is not limited to the relay box, but can be widely applied to various electrical connection boxes having a connector housing portion such as a fuse box and a junction box.

１０：電気接続箱、１２：コネクタ収容部、１４：雄コネクタ、１６：雌コネクタ、１８：コネクタ嵌合体、２０：支持筒部、２４：下方開口部、３０：電線退避部、３２：外周面、３６：係止爪（ロック機構）、６０：電線、６４：テープ DESCRIPTION OF SYMBOLS 10: Electrical connection box, 12: Connector accommodating part, 14: Male connector, 16: Female connector, 18: Connector fitting body, 20: Support cylinder part, 24: Lower opening part, 30: Electric wire retracting part, 32: Outer peripheral surface , 36: locking claw (lock mechanism), 60: electric wire, 64: tape

Claims (2)

電線端末に設けられた雄コネクタと雌コネクタが収容されるコネクタ収容部を備えた電気接続箱において、
前記コネクタ収容部は、下方に開口部を有する筒状の支持筒部と該支持筒部の外周面に開口して前記開口部から上方に向かって延びる電線退避部とを備えており、前記支持筒部の前記開口部から、前記雄コネクタと前記雌コネクタが互いに嵌め合わされた状態で挿入されて前記支持筒部内に収容保持されると共に、前記コネクタ収容部への挿入方向で前方に位置する前記雄コネクタ又は前記雌コネクタから延びる前記電線が前記電線退避部に挿通されるようになっていることを特徴とする電気接続箱。 In the electrical junction box provided with a connector housing portion in which the male connector and the female connector provided in the electric wire terminal are accommodated,
The connector housing portion includes a cylindrical support tube portion having an opening portion below and an electric wire retracting portion that opens to the outer peripheral surface of the support tube portion and extends upward from the opening portion. The male connector and the female connector are inserted in a state of being fitted to each other through the opening of the tube portion and are housed and held in the support tube portion, and are positioned forward in the insertion direction to the connector housing portion. The electrical connection box, wherein the electric wire extending from the male connector or the female connector is inserted into the electric wire retracting portion. 前記コネクタ収容部には、互いに嵌め合わされた前記雄コネクタと前記雌コネクタに係合するロック機構が設けられている請求項１に記載の電気接続箱。   The electrical connection box according to claim 1, wherein the connector housing portion is provided with a lock mechanism that engages with the male connector and the female connector fitted to each other.
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