JP5158943B2 - Wire distribution structure in the electrical junction box - Google Patents

Wire distribution structure in the electrical junction box Download PDF

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JP5158943B2
JP5158943B2 JP2008031479A JP2008031479A JP5158943B2 JP 5158943 B2 JP5158943 B2 JP 5158943B2 JP 2008031479 A JP2008031479 A JP 2008031479A JP 2008031479 A JP2008031479 A JP 2008031479A JP 5158943 B2 JP5158943 B2 JP 5158943B2
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雅章 石黒
寿夫 河原崎
史佳 大橋
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Yazaki Corp
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Description

本発明は、電気接続箱内における電線の配索構造に関するものである。   The present invention relates to a wiring structure for electric wires in an electrical junction box.

電気接続箱の内部に外部から電線を引き込む場合、通常は、電気接続箱の壁に設けた貫通孔にグロメットを装着し、グロメットに貫通させる形で電線を引き込んでいる。これは、特許文献１に記載されるように、車体パネルの貫通孔にグロメットを装着し、グロメットに挿通させてワイヤーハーネスを車内に引き込む場合と同じである。このようにすることで、グロメットによって電気接続箱内に、電線を伝って雨水等が入らないようにすることができる。   When an electric wire is drawn into the inside of the electric junction box from outside, the electric wire is usually drawn in such a manner that a grommet is attached to a through hole provided in the wall of the electric junction box and penetrates the grommet. As described in Patent Document 1, this is the same as the case where a grommet is attached to the through hole of the vehicle body panel, the grommet is inserted, and the wire harness is pulled into the vehicle. By doing in this way, rainwater etc. can be prevented from entering into an electric junction box with a grommet along an electric wire.

しかし、実際の環境で使用してみると、たとえグロメットを設けてあっても、電線と電線の隙間を通って毛細管現象により雨水等が電気接続箱の内部に浸入することがある。   However, when used in an actual environment, even if a grommet is provided, rainwater or the like may enter the inside of the electrical junction box due to capillary action through the gap between the wires.

図３は従来のトラック等の大型車両に搭載される電気接続箱の内部構成を示している。本図は手前のカバーを外した状態を示している。電気接続箱は、そのカバーと電気接続箱本体１とからなるものであり、電気接続箱本体１は、底壁１Ａと、天壁１Ｂと、左側の側壁１Ｃと、右側の側壁１Ｄと、奥側の側壁１Ｅと、を有している。尚、底壁１Ａには図示略のドレン孔が開いている。   FIG. 3 shows an internal configuration of an electric junction box mounted on a large vehicle such as a conventional truck. This figure shows a state in which the front cover is removed. The electrical junction box is composed of a cover and an electrical junction box main body 1. The electrical junction box main body 1 includes a bottom wall 1A, a top wall 1B, a left side wall 1C, a right side wall 1D, and a back side. Side wall 1E. A drain hole (not shown) is opened in the bottom wall 1A.

電気接続箱本体１の内部には、右側に片寄せてヒューズ・リレーボックス（電気接続箱内収容部品）２が収容され、そのヒューズ・リレーボックス２の左側の側面の中段の高さに電線接続対象部Ｈ１、Ｈ２が設けられ、各電線接続対象部Ｈ１、Ｈ２には短い電線３０、４０が繋がっている。   Inside the electrical junction box body 1, a fuse / relay box (a part contained in the electrical junction box) 2 is accommodated by shifting to the right side, and the electric wire is connected to the middle height of the left side surface of the fuse / relay box 2. The target parts H1 and H2 are provided, and the short electric wires 30 and 40 are connected to the electric wire connection target parts H1 and H2.

また、左側の側壁１Ｃの中段の高さには、電気接続箱の外部から内部へ電線を引き込むための電線引込口３が設けられ、その電線引込口３に装着されたグロメット４に挿通させて、外部から２対の電線１０、２０が内部に引き込まれている。そして、それら内部に引き込まれた電線１０、２０は、最短距離で防水コネクタ１７０を介して、前述の電線接続対象部Ｈ１、Ｈ２に繋がった短い電線３０、４０と接続されている。従って、電線引込口３から電線接続対象部Ｈ１、Ｈ２まで、電線１０、２０はほぼ水平に配索されている。   In addition, the middle height of the left side wall 1C is provided with an electric wire inlet 3 for drawing an electric wire from the outside to the inside of the electric junction box, and is inserted through a grommet 4 attached to the electric wire inlet 3. Two pairs of electric wires 10 and 20 are drawn into the inside from the outside. And the electric wires 10 and 20 drawn in those are connected with the short electric wires 30 and 40 connected to the above-mentioned electric wire connection object part H1 and H2 via the waterproof connector 170 by the shortest distance. Therefore, the electric wires 10 and 20 are routed substantially horizontally from the electric wire inlet 3 to the electric wire connection target portions H1 and H2.

特開２００４−１１２９１１号公報JP 2004-112911 A

このように、ほぼ同じ高さに電線引込口３と電線接続対象部Ｈ１、Ｈ２があり、それらの間を電線１０、２０がほぼ水平に配索されているような場合、外部から引き込んだ電線１０、２０の隙間などを伝って雨水が電気接続箱の外部から内部に浸入してくると、そのまま電線接続対象部Ｈ１、Ｈ２に達するおそれがある。そのため、途中のコネクタに防水コネクタ１７０を採用している。しかし、通常のコネクタに比べて防水コネクタ１７０は高価であり、それだけコスト増加になるという問題があった。   In this way, when the wire inlet 3 and the wire connection target portions H1 and H2 are at substantially the same height, and the wires 10 and 20 are arranged almost horizontally between them, the wires drawn from the outside If rainwater enters the interior of the electrical connection box from the outside of the electrical connection box through the gaps 10 and 20, there is a risk of reaching the wire connection target portions H1 and H2 as they are. For this reason, the waterproof connector 170 is adopted as a midway connector. However, the waterproof connector 170 is more expensive than a normal connector, which increases the cost.

本発明は、上述した事情に鑑みてなされたものであり、その目的は、電気接続箱内の電線の配索経路に工夫を加えることで、高価な防水コネクタを使用しないでも、電線接続対象部への水の浸入を防止することのできる電気接続箱内における電線の配索構造を提供することにある。   The present invention has been made in view of the above-described circumstances, and its purpose is to devise the wiring route of the electric wire in the electric connection box, and without using an expensive waterproof connector, the electric wire connection target portion. It is an object of the present invention to provide a wiring structure for an electric wire in an electric junction box that can prevent water from entering the battery.

前述した目的を達成するために、本発明に係る電気接続箱内における電線の配索構造は、下記（１）〜（４）を特徴としている。
（１） 電気接続箱の側壁に該電気接続箱の外部から内部に電線を引き込む電線引込口が開口しており、該電線引込口から前記電気接続箱の内部に引き込まれた前記電線が、前記電線引込口と対向する電気接続箱内収容部品の電線接続対象部に向けて配索された、電気接続箱内における電線の配索構造であって、
前記電線引込口から前記電線接続対象部までの間の前記電気接続箱内の空間に、前記電線引込口から引き込まれた前記電線を、最短経路を外れて前記電線接続対象部まで迂回して導く迂回経路が設けられ、当該迂回経路の途中に、前記電線引込口から前記電線接続対象部へ向かう経路方向において前記電線が下から上へ向けて立ち上がる電線立ち上がり部が設けられており、
前記電気接続箱の内壁に、前記迂回経路に沿って配索された前記電線を保持する電線保持部が設けられており、
前記迂回経路に、前記電線立ち上がり部の他に、前記電線が水平方向に延びる水平移行部と、前記電線引込口から前記電線接続対象部へ向かう経路方向において前記電線が上から下へ向けて立ち下がる電線立ち下がり部とが設けられており、そして、前記水平移行部が前記電線保持部によって前記電気接続箱の天壁または底壁、もしくは該天壁の近傍または該底壁の近傍に保持されることによって、前記迂回経路に沿って前記電線が配索されていること。
（２） 上記（１）の構成の電線の配索構造において、
前記迂回経路として、前記電線を前記最短経路よりも上側に迂回させて前記電線引込口から前記電線接続対象部に導く上側迂回経路と、前記電線を前記最短経路よりも下側に迂回させて前記電線引込口から前記電線接続対象部に導く下側迂回経路と、が設けられており、
前記上側迂回経路では、前記電線引込口から前記電線接続対象部へ向かう経路方向において、前記電線立ち上がり部、前記水平移行部、および前記電線立ち下がり部が、この順に配置され、
前記下側迂回経路では、前記電線引込口から前記電線接続対象部へ向かう経路方向において、前記電線立ち下がり部、前記水平移行部、および前記電線立ち上がり部が、この順に配置され、
前記上側迂回経路の水平移行部が前記電線保持部によって前記電気接続箱の天壁に保持され、
前記下側迂回経路の水平移行部が前記電線保持部によって前記電気接続箱の底壁に保持されていること。
（３） 上記（２）の構成の電線の配索構造において、
前記上側迂回経路の電線立ち下がり部の下端から前記電線接続対象部までの間に水平配索部が設けられ、当該水平配索部の途中に、前記電線引込口から引き込んだ電線と前記電線接続対象部に繋がる電線とを相互に電気的に接続する第１コネクタが水平方向に向けて設けられ、
また、前記下側迂回経路の電線立ち上がり部の途中に、前記電線引込口から引き込んだ電線と前記電線接続対象部に繋がる電線とを相互に電気的に接続する第２コネクタが垂直方向に向けて設けられており、
前記第１コネクタおよび第２コネクタが、前記電気接続箱の内壁に設けたコネクタ保持部に着脱自在に係合されて固定されていること。
（４） 上記（１）の構成の電線の配索構造において、
前記電線立ち上がり部と前記電線接続対象部との間にコネクタが設けられていること。 In order to achieve the above-described object, the cable routing structure in the electrical junction box according to the present invention is characterized by the following (1) to ( 4 ).
(1) An electric wire lead-in port for drawing an electric wire from the outside to the inside of the electric connection box is opened on a side wall of the electric connection box, and the electric wire drawn into the electric connection box from the electric wire drawing port is The wiring structure of the electric wire in the electric connection box, which is routed toward the electric wire connection target portion of the housing component in the electric connection box facing the electric wire inlet,
The electric wire drawn from the electric wire drawing port is led to the space inside the electric connection box between the electric wire drawing port and the electric wire connection target portion by detouring to the electric wire connection target portion by taking the shortest path. A detour route is provided, and in the middle of the detour route, an electric wire rising portion is provided in which the electric wire rises from bottom to top in a route direction from the electric wire inlet to the electric wire connection target portion ,
On the inner wall of the electrical junction box, an electric wire holding part for holding the electric wire routed along the detour path is provided,
In the bypass path, in addition to the electric wire rising portion, a horizontal transition portion in which the electric wire extends in a horizontal direction, and the electric wire stands from top to bottom in a path direction from the electric wire inlet to the electric wire connection target portion. And a horizontal transition part is held by the electric wire holding part on the top wall or bottom wall of the electric junction box, near the top wall, or near the bottom wall. The electric wires are routed along the detour path .
( 2 ) In the wiring structure of the electric wire having the configuration ( 1 ) above,
As the detour path, the upper detour path for detouring the electric wire to the upper side from the shortest path and leading from the electric wire inlet to the electric wire connection target part, and detouring the electric wire to the lower side from the shortest path A lower detour path leading from the wire inlet to the wire connection target part,
In the upper detour route, in the route direction from the wire inlet to the wire connection target portion, the wire rising portion, the horizontal transition portion, and the wire falling portion are arranged in this order,
In the lower detour path, the wire falling part, the horizontal transition part, and the wire rising part are arranged in this order in the path direction from the wire inlet to the wire connection target part,
A horizontal transition portion of the upper detour path is held on the top wall of the electric junction box by the electric wire holding portion,
The horizontal transition part of the lower detour path is held on the bottom wall of the electric junction box by the electric wire holding part.
( 3 ) In the wiring structure of the electric wire having the configuration ( 2 ) above,
A horizontal wiring portion is provided between the lower end of the electric wire falling portion of the upper detour path and the electric wire connection target portion, and the electric wire drawn in from the electric wire inlet and the electric wire connection in the middle of the horizontal wiring portion A first connector that electrically connects the electric wires connected to the target portion to each other is provided in the horizontal direction,
Moreover, in the middle of the electric wire rising part of the said lower side detour path, the 2nd connector which electrically connects the electric wire drawn in from the said electric wire inlet and the electric wire connected to the said electric wire connection object part toward a perpendicular direction Provided,
The first connector and the second connector are detachably engaged with and fixed to a connector holding portion provided on the inner wall of the electrical junction box.
( 4 ) In the wiring structure of the electric wire having the configuration (1) above,
A connector is provided between the electric wire rising portion and the electric wire connection target portion.

上記（１）の構成の電線の配索構造によれば、電気接続箱の側壁に設けた電線引込口から電線接続対象部までの電線を、最短経路に沿ってではなく、敢えて迂回経路に沿って配索し、その迂回経路の途中に、電線引込口から電線接続対象部へ向かう経路方向において電線が下から上へ向けて立ち上がる電線立ち上がり部を設けているので、その電線立ち上がり部により水の上昇を重力によって阻止することができる。従って、高価な防水コネクタを使用しないでも、電線接続対象部への水の浸入を有効に防止することができ、コストの低減を図ることができる。
また、上記（１）の構成の電線の配索構造によれば、迂回経路に沿って配索された電線を、電線保持部によって保持するので、最短経路をとらないために弛みをもちながら配索された電線の遊びやガタつきを防止することができる。また、車両の振動等によらず、電気接続箱内に引き込んだ電線を、迂回経路に沿った状態に留め置くことができるので、水の浸入防止効果を常に確実に果たすことができる。
また、上記（１）の構成の電線の配索構造によれば、迂回経路に、電線立ち上がり部と水平移行部と電線立ち下がり部とを設け、前記水平移行部を電線保持部で電気接続箱の天壁または底壁、もしくは該天壁の近傍または該底壁の近傍に保持するようにしているので、電気接続箱内の空間に電線をＵ字状または逆Ｕ字状の経路で簡素に且つ整然と配索することができる。
上記（２）の構成の電線の配索構造によれば、電気接続箱内に引き込んだ電線を上側迂回経路と下側迂回経路に分割して配索したので、上側迂回経路については、最初の電線立ち上がり部で、電線を伝ってくる水の浸入を確実に断ち切ることができ、むしろその水を下側迂回経路の方へ向かわせることができる。従って、電線接続対象部側への水の進行を確実に阻止することができる。
また、下側迂回経路については、最初の電線立ち下がり部で、電線を伝ってくる水を積極的に下方へ誘導することができるので、高い位置での水の滴下を防ぐことができ、浸入してきた水をスムーズに電気接続箱の内底部に誘導して、ドレン孔から排出させることができる。また、最後の電線立ち上がり部で、電線を伝ってくる水の浸入を確実に断ち切るので、電線接続対象部への進行を阻止することができる。
また、上側迂回経路の水平移行部を電気接続箱の天壁に保持させ、下側迂回経路の水平移行部を電気接続箱の底壁に保持させたので、車両の振動に伴う電線の揺れ動きを阻止することができ、ガタ付きや異音発生を防ぐことができる。
上記（３）の構成の電線の配索構造によれば、電気接続箱内での２つのコネクタの取り付け向きを違えたので、狭い電気接続箱内での作業スペースが確保しやすくなる。
上記（４）の構成の電線の配索構造によれば、電気接続箱内でコネクタ接続が必要な場合、安価な非防水のコネクタを使用することができる。 According to the wiring structure of the electric wire having the above configuration (1), the electric wire from the electric wire inlet provided on the side wall of the electric connection box to the electric wire connection target portion is not intentionally along the shortest route, but is intentionally along the detour route. In the middle of the detour path, there is an electric wire rising part where the electric wire rises from the bottom to the upper side in the path direction from the electric wire inlet to the electric wire connection target part. The ascent can be prevented by gravity. Therefore, even if an expensive waterproof connector is not used, it is possible to effectively prevent water from entering the portion to be connected to the electric wire and to reduce the cost.
In addition, according to the wire routing structure configured as described in ( 1 ) above, the wires routed along the detour route are held by the wire holding portion, so that the wires are arranged with slack so as not to take the shortest route. It is possible to prevent play and rattling of the cable that has been found. Moreover, since the electric wire drawn into the electrical junction box can be kept in a state along the detour path regardless of the vibration of the vehicle, the effect of preventing the ingress of water can always be achieved reliably.
Moreover, according to the wiring structure of the electric wire having the configuration ( 1 ), an electric wire rising portion, a horizontal transition portion, and an electric wire falling portion are provided in the detour path, and the horizontal transition portion is electrically connected to the electric connection box by the electric wire holding portion. The top wall or the bottom wall of the door, or the vicinity of the top wall or the vicinity of the bottom wall , so that the electric wire can be simply connected to the space in the electric junction box by a U-shaped or inverted U-shaped path. And it can be arranged neatly.
According to the wiring structure of the electric wire having the above configuration ( 2 ), the electric wire drawn into the electric junction box is divided into the upper detour path and the lower detour path, and the upper detour path is At the electric wire rising portion, it is possible to reliably cut off the ingress of the water that travels along the electric wire, and rather, the water can be directed toward the lower detour path. Accordingly, it is possible to reliably prevent water from proceeding toward the electric wire connection target part.
For the lower detour route, the water that travels along the wire can be actively guided downward at the first falling edge of the wire, so that dripping of water at a high position can be prevented. The water thus generated can be smoothly guided to the inner bottom of the electric junction box and discharged from the drain hole. Moreover, since the penetration | invasion of the water which propagates an electric wire is cut off reliably in the last electric wire rising part, progress to an electric wire connection object part can be prevented.
In addition, the horizontal transition part of the upper detour path is held on the top wall of the electric junction box, and the horizontal transition part of the lower detour path is held on the bottom wall of the electric junction box, so that the electric wire swings due to the vibration of the vehicle. It is possible to prevent rattling and abnormal noise.
According to the wiring structure of the electric wire having the configuration ( 3 ), the mounting direction of the two connectors in the electric junction box is changed, so that it is easy to secure a work space in the narrow electric junction box.
According to the wiring structure of the electric wire having the above configuration ( 4 ), an inexpensive non-waterproof connector can be used when connector connection is required in the electric junction box.

本発明によれば、電線引込口から電線接続対象部までの経路に電線立ち上がり部を設けているので、高価な防水コネクタを使用しないでも、電線接続対象部への水の浸入を有効に防止することができ、コストの低減を図ることができる。   According to the present invention, since the electric wire rising portion is provided in the path from the electric wire inlet to the electric wire connection target portion, water can be effectively prevented from entering the electric wire connection target portion without using an expensive waterproof connector. And cost can be reduced.

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

以下、本発明に係る好適な実施形態を図面に基づいて詳細に説明する。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings.

図１は実施形態の電線の配索構造を含む電気接続箱の内部構成を示す図であり、手前のカバーを外した状態を示す正面図、そして図２はその一部の構成を示す斜視図である。   FIG. 1 is a diagram showing an internal configuration of an electrical junction box including an electric wire routing structure according to an embodiment, a front view showing a state in which a front cover is removed, and FIG. 2 is a perspective view showing a partial configuration thereof It is.

この電気接続箱は、図示しないカバーと電気接続箱本体１とからなるものであり、電気接続箱本体１は、底壁１Ａと、天壁１Ｂと、左側の側壁１Ｃと、右側の側壁１Ｄと、奥側の側壁１Ｅと、を有している。尚、底壁１Ａには図示略のドレン孔が開いている。   This electrical junction box is composed of a cover (not shown) and an electrical junction box body 1. The electrical junction box body 1 includes a bottom wall 1A, a top wall 1B, a left side wall 1C, and a right side wall 1D. And the rear side wall 1E. A drain hole (not shown) is opened in the bottom wall 1A.

電気接続箱本体１の内部には、右側に片寄せてヒューズ・リレーボックス（電気接続箱内収容部品）２が収容され、そのヒューズ・リレーボックス２の左側の側面の中段より若干上の高さに電線接続対象部Ｈ１、Ｈ２が設けられ、電線接続対象部Ｈ１、Ｈ２には短い電線３０、４０が繋がっている。   Inside the electrical junction box body 1, a fuse / relay box (a part contained in the electrical junction box) 2 is accommodated by being shifted to the right side, and is slightly higher than the middle of the left side surface of the fuse / relay box 2. Are provided with wire connection target portions H1 and H2, and short wire 30 and 40 are connected to the wire connection target portions H1 and H2.

また、左側の側壁１Ｃの中段の高さには、電気接続箱の外部から内部へ電線を引き込むための電線引込口３が設けられ、その電線引込口３に装着されたグロメット４に挿通させて、外部から２対の電線１０、２０が電気接続箱内部に引き込まれている。   In addition, the middle height of the left side wall 1C is provided with an electric wire inlet 3 for drawing an electric wire from the outside to the inside of the electric junction box, and is inserted through a grommet 4 attached to the electric wire inlet 3. Two pairs of electric wires 10 and 20 are drawn from the outside into the electric junction box.

そして、それら電気接続箱の内部に引き込まれた電線１０、２０は、下側迂回経路Ｙ１と上側迂回経路Ｙ２をそれぞれ経由して、防水コネクタではない通常のコネクタ（即ち、非防水のコネクタ）７０を介して、前述の電線接続対象部Ｈ１、Ｈ２に繋がった短い電線３０、４０と接続されている。   Then, the electric wires 10 and 20 drawn into the electric junction box are connected to a normal connector (that is, a non-waterproof connector) 70 that is not a waterproof connector via the lower bypass route Y1 and the upper bypass route Y2. Are connected to the short electric wires 30 and 40 connected to the aforementioned electric wire connection target portions H1 and H2.

これら下側迂回経路Ｙ１および上側迂回経路Ｙ２は、電線引込口３から電線接続対象部Ｈ１、Ｈ２までの間の電気接続箱内の空間に確保されており、電線引込口３から引き込んだ電線１０、２０を、最短経路を外れて、電線接続対象部Ｈ１、Ｈ２まで、下側および上側にそれぞれ迂回させて導くものである。尚、最短経路とは、電線引込口３から電線接続対象部Ｈ１、Ｈ２までをほぼ直線で結ぶ経路である。   The lower detour path Y1 and the upper detour path Y2 are secured in the space in the electrical connection box from the wire lead-in port 3 to the wire connection target portions H1 and H2, and the electric wire 10 drawn from the wire lead-in port 3 , 20 is detoured to the lower side and the upper side, respectively, from the shortest path to the wire connection target parts H1 and H2. The shortest path is a path that connects the wire inlet 3 to the wire connection target portions H1 and H2 with a substantially straight line.

下側迂回経路Ｙ１には、電線引込口３から電線接続対象部Ｈ１へ向かう経路方向において電線１０が上から下へ向けて立ち下がる電線立ち下がり部１０Ａと、電線１０が水平方向に延びる水平移行部１０Ｂと、電線引込口３から電線接続対象部Ｈ１へ向かう経路方向において電線１０が下から上へ向けて立ち上がる電線立ち上がり部１０Ｃとが、電線引込口３から電線接続対象部Ｈ１へ向けてこの順に設けられている。   In the lower detour path Y1, the wire falling part 10A where the electric wire 10 falls from the top to the bottom in the path direction from the electric wire inlet 3 to the electric wire connection target part H1, and the horizontal transition in which the electric wire 10 extends in the horizontal direction 10C and the wire rising portion 10C where the electric wire 10 rises from the bottom to the top in the path direction from the electric wire inlet 3 to the electric wire connection target portion H1, the electric wire rising portion 10C from the electric wire inlet 3 toward the electric wire connection target portion H1. It is provided in order.

また、上側迂回経路Ｙ２には、電線引込口３から電線接続対象部Ｈ２へ向かう経路方向において電線２０が下から上へ向けて立ち上がる電線立ち上がり部２０Ａと、電線２０が水平方向に延びる水平移行部２０Ｂと、電線引込口３から電線接続対象部Ｈ２へ向かう経路方向において電線２０が上から下へ向けて立ち下がる電線立ち下がり部２０Ｃとが、電線引込口３から電線接続対象部Ｈ２へ向けてこの順に設けられている。   The upper bypass path Y2 includes an electric wire rising portion 20A where the electric wire 20 rises from the bottom to the upper side in the route direction from the electric wire inlet 3 to the electric wire connection target portion H2, and a horizontal transition portion where the electric wire 20 extends in the horizontal direction. 20B and an electric wire falling portion 20C where the electric wire 20 falls from top to bottom in the path direction from the electric wire inlet 3 to the electric wire connection target portion H2, and from the electric wire inlet 3 toward the electric wire connection target portion H2. They are provided in this order.

そして、上側の電線２０は、その水平移行部２０Ｂが、電気接続箱本体１の天壁１Ｂの近傍に設けられた電線保持用突出片（電線保持部）５０に係合されることで、逆Ｕ字状の上側迂回経路Ｙ２に沿って保持され、下側の電線１０は、その水平移行部１０Ｂが、電気接続箱本体１の底壁１Ａの近傍に設けられた電線保持用突出片（電線保持部）５０に係合されることで、Ｕ字状の下側迂回経路に沿って保持されている。尚、上下の電線保持用突出片５０は、電気接続箱本体１の奥側の側壁１Ｅから正面に向けて突出しており、正面から電線１０、２０の水平移行部１０Ｂ、２０Ｂを挿入することにより、電線１０、２０を底壁１Ａと天壁１Ｂにそれぞれ止めることができるようになっている。   And the upper electric wire 20 is reversed by the horizontal transition portion 20B being engaged with an electric wire holding protruding piece (electric wire holding portion) 50 provided in the vicinity of the top wall 1B of the electric junction box body 1. The lower electric wire 10 is held along the U-shaped upper detour path Y2, and the horizontal transition portion 10B of the electric wire holding protruding piece (electric wire) provided in the vicinity of the bottom wall 1A of the electric junction box body 1 By being engaged with the holding portion) 50, the holding portion 50 is held along the U-shaped lower detour path. The upper and lower electric wire holding protruding pieces 50 protrude from the back side wall 1E of the electrical junction box body 1 toward the front, and the horizontal transition portions 10B and 20B of the electric wires 10 and 20 are inserted from the front. The electric wires 10 and 20 can be stopped on the bottom wall 1A and the top wall 1B, respectively.

また、上側迂回経路Ｙ２の電線立ち下がり部２０Ｃの下端から電線接続対象部Ｈ２までの間には、水平配索部２０Ｄが設けられ、その水平配索部２０Ｄの途中に、電線引込口３から引き込んだ電線２０と電線接続対象部Ｈ２に繋がる電線４０とを相互に電気的に接続する第１コネクタ７０が水平方向に向けて配置されている。また、下側迂回経路Ｙ１の電線立ち上がり部１０Ｃの途中に、電線引込口３から引き込んだ電線１０と電線接続対象部Ｈ１に繋がる電線３０とを相互接続する第２コネクタ７０が垂直方向に向けて配置されている。そして、これら第１および第２コネクタ７０は、電気接続箱本体１の奥側の側壁１Ｅに設けたコネクタ保持用ブラケット（コネクタ保持部）８０の係合孔８１に各コネクタ７０のクリップ７１を着脱自在に係合することで、電気接続箱本体１の内部の所定位置に固定されている。   Further, a horizontal wiring portion 20D is provided between the lower end of the electric wire falling portion 20C of the upper bypass path Y2 and the electric wire connection target portion H2, and from the electric wire inlet 3 in the middle of the horizontal wiring portion 20D. The 1st connector 70 which electrically connects the drawn-in electric wire 20 and the electric wire 40 connected with the electric wire connection object part H2 mutually is arrange | positioned toward the horizontal direction. Moreover, the 2nd connector 70 which mutually connects the electric wire 10 drawn in from the electric wire inlet 3 and the electric wire 30 connected to the electric wire connection object part H1 in the middle of the electric wire rising part 10C of the lower detour path | route Y1 toward a perpendicular direction. Has been placed. The first and second connectors 70 attach and detach the clips 71 of the respective connectors 70 to the engagement holes 81 of the connector holding bracket (connector holding portion) 80 provided on the back side wall 1E of the electrical junction box body 1. By being freely engaged, it is fixed at a predetermined position inside the electric junction box body 1.

以上の構成の電線の配索構造によれば、電気接続箱の側壁１Ｃに設けた電線引込口３から電線接続対象部Ｈ１、Ｈ２までの電線１０、２０を、最短経路に沿ってではなく、敢えて迂回経路Ｙ１、Ｙ２に沿って配索し、その迂回経路Ｙ１、Ｙ２の途中に、電線引込口３から電線接続対象部Ｈ１、Ｈ２へ向かう経路方向において電線が下から上へ向けて立ち上がる電線立ち上がり部１０Ｃ、２０Ａを設けているので、それら電線立ち上がり部１０Ｃ、２０Ａの存在により、矢印Ｆで示すように外部から電線を伝ってくる水の浸入を重力によって阻止することができる。従って、従来例のように高価な防水コネクタを使用しないでも、電線接続対象部Ｈ１、Ｈ２への水の浸入を有効に防止することができ、コストの低減を図ることができる。   According to the wiring structure of the electric wire having the above configuration, the electric wires 10 and 20 from the electric wire inlet 3 provided on the side wall 1C of the electric junction box to the electric wire connection target portions H1 and H2 are not along the shortest path, An electric wire that is routed along the detour routes Y1 and Y2 and rises from the bottom to the top in the route direction from the wire inlet 3 to the wire connection target portions H1 and H2 along the detour routes Y1 and Y2. Since the rising portions 10C and 20A are provided, the presence of the electric wire rising portions 10C and 20A can prevent the entry of water from the outside through the electric wires as indicated by the arrow F by gravity. Therefore, even if an expensive waterproof connector is not used as in the conventional example, it is possible to effectively prevent water from entering the wire connection target portions H1 and H2, thereby reducing the cost.

特に、本実施形態の電線の配索構造によれば、迂回経路Ｙ１、Ｙ２に沿って配索された電線１０、２０を、電線保持用突出片５０によって保持しているので、最短経路をとらないために弛みをもちながら配索された電線１０、２０の遊びやガタつきを防止することができる。また、車両の振動等によらず、電気接続箱内に引き込んだ電線１０、２０を、迂回経路Ｙ１、Ｙ２に沿った状態に留め置くことができるので、水の浸入防止効果を常に確実に果たすことができる。   In particular, according to the wire routing structure of the present embodiment, the wires 10 and 20 routed along the detour routes Y1 and Y2 are held by the wire holding protruding pieces 50, so the shortest route is taken. Therefore, it is possible to prevent play and rattling of the electric wires 10 and 20 that are arranged with slack. Moreover, since the electric wires 10 and 20 drawn into the electric junction box can be kept in the state along the detour paths Y1 and Y2 regardless of the vibration of the vehicle or the like, the effect of preventing the ingress of water is always ensured. be able to.

また、各迂回経路Ｙ１、Ｙ２に、電線立ち上がり部１０Ｃ、２０Ａと水平移行部１０Ｂ、２０Ｂと電線立ち下がり部１０Ａ、２０Ｃとを設け、水平移行部１０Ｂ、２０Ｂを電線保持用突出片５０で電気接続箱の天壁１Ｂまたは底壁１Ａに保持するようにしているので、電気接続箱内の空間に電線１０、２０をＵ字状または逆Ｕ字状の経路で簡素に且つ整然と配索することができると共に、車両の振動に伴う電線１０、２０の揺れ動きを阻止することができて、ガタ付きや異音発生を防ぐことができる。   In addition, electric wire rising portions 10C, 20A, horizontal transition portions 10B, 20B and electric wire falling portions 10A, 20C are provided in the detour paths Y1, Y2, and the horizontal transition portions 10B, 20B are electrically connected by the electric wire holding protruding pieces 50. Since it is held on the top wall 1B or the bottom wall 1A of the connection box, the electric wires 10 and 20 are simply and orderly arranged in a space in the electric connection box through a U-shaped or inverted U-shaped route. In addition, it is possible to prevent the electric wires 10 and 20 from swaying due to the vibration of the vehicle, and to prevent rattling and abnormal noise.

また、電気接続箱内に引き込んだ電線１０、２０を上側迂回経路Ｙ２と下側迂回経路Ｙ１に分割して配索しているので、上側迂回経路Ｙ２については、最初の電線立ち上がり部２０Ａで、電線２０を伝ってくる水の浸入を確実に断ち切ることができ、むしろその水を下側迂回経路Ｙ１の方へ向かわせることができる。従って、電線接続対象部Ｈ２側への水の進行を確実に阻止することができる。また、下側迂回経路Ｙ１については、最初の電線立ち下がり部１０Ａで、電線１０を伝ってくる水を積極的に下方へ誘導することができるので、高い位置での水の滴下を防ぐことができ、浸入してきた水をスムーズに電気接続箱の内底部に誘導して、ドレン孔から排出させることができる。また、最後の電線立ち上がり部１０Ｃで、電線１０を伝ってくる水の浸入を確実に断ち切るので、電線接続対象部Ｈ１への進行を阻止することができる。   Moreover, since the electric wires 10 and 20 drawn into the electric junction box are divided and arranged into the upper detour path Y2 and the lower detour path Y1, the upper detour path Y2 is the first electric wire rising portion 20A, It is possible to reliably cut off the ingress of water that travels through the electric wire 20, but rather to direct the water toward the lower detour path Y1. Accordingly, it is possible to reliably prevent the water from proceeding toward the wire connection target part H2. Moreover, about the lower detour route Y1, the first electric wire falling portion 10A can positively guide water traveling down the electric wire 10 to prevent dripping of water at a high position. The water that has entered can be smoothly guided to the inner bottom of the electrical junction box and discharged from the drain hole. In addition, since the last electric wire rising portion 10C reliably cuts off the water entering the electric wire 10, it is possible to prevent the electric wire connection target portion H1 from proceeding.

また、２つのコネクタ７０，７０の取り付け向きを違えているので、狭い電気接続箱内での作業スペースが確保しやすくなる。尚、本実施形態の電線の配索構造によれば、電線立ち上がり部１０Ｃ，２０Ｃと電線接続対象部Ｈ１，Ｈ２との間にコネクタ７０，７０が設けられているので、電気接続箱内でコネクタ接続が必要な場合、安価な非防水のコネクタを使用することができる。   Further, since the mounting directions of the two connectors 70 and 70 are different, it is easy to secure a work space in a narrow electrical junction box. In addition, according to the cable routing structure of the present embodiment, since the connectors 70 and 70 are provided between the wire rising portions 10C and 20C and the wire connection target portions H1 and H2, the connector is provided in the electrical connection box. If a connection is required, an inexpensive non-waterproof connector can be used.

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

例えば、上記実施形態では、上側迂回経路Ｙ２と下側迂回経路Ｙ１の両方を設けているが、どちらか一方のみを設けてもよい。   For example, in the above embodiment, both the upper detour path Y2 and the lower detour path Y1 are provided, but only one of them may be provided.

また、上記実施形態では、下側迂回経路Ｙ１の電線１０の水平移行部１０Ｂを、電線保持用突出片５０で底壁１Ａに保持固定しているが、電線１０が自由状態で底壁１Ａに達する遊び長さを有していれば、必ずしも電線保持用突出片５０で底壁１Ａに止めておかなくても、電線１０が揺れ動くことはなく、その場合は、下側の電線保持用突出片５０を省略してもよい。   Moreover, in the said embodiment, although the horizontal transition part 10B of the electric wire 10 of the lower detour route Y1 is hold | maintained and fixed to the bottom wall 1A with the protrusion piece 50 for electric wire holding | maintenance, the electric wire 10 is free to the bottom wall 1A. As long as it has a play length that can be reached, the electric wire 10 does not shake even if it is not necessarily fixed to the bottom wall 1A by the electric wire holding protruding piece 50. In this case, the lower electric wire holding protruding piece 50 may be omitted.

本発明の実施形態の電線の配索構造を含む電気接続箱の内部構成を示す図であり、手前のカバーを外した状態を示す正面図である。It is a figure which shows the internal structure of the electrical junction box containing the wiring structure of the embodiment of this invention, and is a front view which shows the state which removed the front cover. 図１の電気接続箱内における一部の構成を示す斜視図である。It is a perspective view which shows the one part structure in the electrical-connection box of FIG. 従来のトラック等の大型車両に搭載される電気接続箱の内部構成を示し、手前のカバーを外した状態を示す正面図である。It is a front view which shows the internal structure of the electric junction box mounted in large vehicles, such as the conventional truck, and shows the state which removed the front cover.

符号の説明Explanation of symbols

１：電気接続箱本体
１Ａ：底壁
１Ｂ：天壁
１Ｃ 側壁
２：ヒューズ・リレーボックス（電気接続箱内収容部品）
３：電線引込口
１０：下側の電線
１０Ａ：電線立ち下がり部
１０Ｂ：水平移行部
１０Ｃ：電線立ち上がり部
２０：上側の電線
２０Ａ：電線立ち上がり部
２０Ｂ：水平移行部
２０Ｃ：電線立ち下がり部
２０Ｄ：水平配索部
５０：電線保持用突出片（電線保持部）
７０：コネクタ
Ｙ１：下側迂回経路
Ｙ２：上側迂回経路
Ｈ１，Ｈ２：電線接続対象部 1: Electrical junction box body 1A: Bottom wall 1B: Top wall 1C Side wall 2: Fuse / relay box (container in electrical junction box)
3: Electric wire inlet 10: Lower electric wire 10A: Electric wire falling portion 10B: Horizontal transition portion 10C: Electric wire rising portion 20: Upper electric wire 20A: Electric wire rising portion 20B: Horizontal electric transition portion 20C: Electric wire falling portion 20D: Horizontal routing unit 50: wire holding protrusion (wire holding unit)
70: Connector Y1: Lower bypass path Y2: Upper bypass path H1, H2: Wire connection target part

Claims (4)

電気接続箱の側壁に該電気接続箱の外部から内部に電線を引き込む電線引込口が開口しており、該電線引込口から前記電気接続箱の内部に引き込まれた前記電線が、前記電線引込口と対向する電気接続箱内収容部品の電線接続対象部に向けて配索された、電気接続箱内における電線の配索構造であって、
前記電線引込口から前記電線接続対象部までの間の前記電気接続箱内の空間に、前記電線引込口から引き込まれた前記電線を、最短経路を外れて前記電線接続対象部まで迂回して導く迂回経路が設けられ、当該迂回経路の途中に、前記電線引込口から前記電線接続対象部へ向かう経路方向において前記電線が下から上へ向けて立ち上がる電線立ち上がり部が設けられており、
前記電気接続箱の内壁に、前記迂回経路に沿って配索された前記電線を保持する電線保持部が設けられており、
前記迂回経路に、前記電線立ち上がり部の他に、前記電線が水平方向に延びる水平移行部と、前記電線引込口から前記電線接続対象部へ向かう経路方向において前記電線が上から下へ向けて立ち下がる電線立ち下がり部とが設けられており、そして、前記水平移行部が前記電線保持部によって前記電気接続箱の天壁または底壁、もしくは該天壁の近傍または該底壁の近傍に保持されることによって、前記迂回経路に沿って前記電線が配索されていることを特徴とする電気接続箱内における電線の配索構造。 An electric wire inlet opening for drawing an electric wire from the outside to the inside of the electric connection box is opened on a side wall of the electric connection box, and the electric wire drawn into the electric connection box from the electric wire inlet is the electric wire inlet The wiring structure of the electric wire in the electric connection box, which is arranged toward the electric wire connection target part of the housing component in the electric connection box opposite to the electric connection box,
The electric wire drawn from the electric wire drawing port is led to the space inside the electric connection box between the electric wire drawing port and the electric wire connection target portion by detouring to the electric wire connection target portion by taking the shortest path. A detour route is provided, and in the middle of the detour route, an electric wire rising portion is provided in which the electric wire rises from bottom to top in a route direction from the electric wire inlet to the electric wire connection target portion ,
On the inner wall of the electrical junction box, an electric wire holding part for holding the electric wire routed along the detour path is provided,
In the bypass path, in addition to the electric wire rising portion, a horizontal transition portion in which the electric wire extends in a horizontal direction, and the electric wire stands from top to bottom in a path direction from the electric wire inlet to the electric wire connection target portion. And a horizontal transition part is held by the electric wire holding part on the top wall or bottom wall of the electric junction box, near the top wall, or near the bottom wall. By this, the electric wire is routed in the electric junction box, wherein the electric wire is routed along the detour path. 前記迂回経路として、前記電線を前記最短経路よりも上側に迂回させて前記電線引込口から前記電線接続対象部に導く上側迂回経路と、前記電線を前記最短経路よりも下側に迂回させて前記電線引込口から前記電線接続対象部に導く下側迂回経路と、が設けられており、
前記上側迂回経路では、前記電線引込口から前記電線接続対象部へ向かう経路方向において、前記電線立ち上がり部、前記水平移行部、および前記電線立ち下がり部が、この順に配置され、
前記下側迂回経路では、前記電線引込口から前記電線接続対象部へ向かう経路方向において、前記電線立ち下がり部、前記水平移行部、および前記電線立ち上がり部が、この順に配置され、
前記上側迂回経路の水平移行部が前記電線保持部によって前記電気接続箱の天壁に保持され、
前記下側迂回経路の水平移行部が前記電線保持部によって前記電気接続箱の底壁に保持されていることを特徴とする請求項１に記載した電気接続箱内における電線の配索構造。 As the detour path, the upper detour path for detouring the electric wire to the upper side from the shortest path and leading from the electric wire inlet to the electric wire connection target part, and detouring the electric wire to the lower side from the shortest path A lower detour path leading from the wire inlet to the wire connection target part,
In the upper detour route, in the route direction from the wire inlet to the wire connection target portion, the wire rising portion, the horizontal transition portion, and the wire falling portion are arranged in this order,
In the lower detour path, the wire falling part, the horizontal transition part, and the wire rising part are arranged in this order in the path direction from the wire inlet to the wire connection target part,
A horizontal transition portion of the upper detour path is held on the top wall of the electric junction box by the electric wire holding portion,
2. The electric wire routing structure in the electric junction box according to claim 1 , wherein a horizontal transition portion of the lower detour path is held by a bottom wall of the electric junction box by the electric wire holding portion. 前記上側迂回経路の電線立ち下がり部の下端から前記電線接続対象部までの間に水平配索部が設けられ、当該水平配索部の途中に、前記電線引込口から引き込んだ電線と前記電線接続対象部に繋がる電線とを相互に電気的に接続する第１コネクタが水平方向に向けて設けられ、
また、前記下側迂回経路の電線立ち上がり部の途中に、前記電線引込口から引き込んだ電線と前記電線接続対象部に繋がる電線とを相互に電気的に接続する第２コネクタが垂直方向に向けて設けられており、
前記第１コネクタおよび第２コネクタが、前記電気接続箱の内壁に設けたコネクタ保持部に着脱自在に係合されて固定されていることを特徴とする請求項２に記載した電気接続箱内における電線の配索構造。 A horizontal wiring portion is provided between the lower end of the electric wire falling portion of the upper detour path and the electric wire connection target portion, and the electric wire drawn in from the electric wire inlet and the electric wire connection in the middle of the horizontal wiring portion A first connector that electrically connects the electric wires connected to the target portion to each other is provided in the horizontal direction,
Moreover, in the middle of the electric wire rising part of the said lower side detour path, the 2nd connector which electrically connects the electric wire drawn in from the said electric wire inlet and the electric wire connected to the said electric wire connection object part toward a perpendicular direction Provided,
It said first connector and second connector, in the electric junction box according to claim 2, characterized in that it is fixed by being detachably engaged to the connector holding portion provided on the inner wall of the electrical junction box Wire routing structure. 前記電線立ち上がり部と前記電線接続対象部との間にコネクタが設けられていることを特徴とする請求項１に記載した電気接続箱内における電線の配索構造。   The wiring structure in the electric junction box according to claim 1, wherein a connector is provided between the electric wire rising portion and the electric wire connection target portion.
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