JP3652554B2

JP3652554B2 - Electrical junction box

Info

Publication number: JP3652554B2
Application number: JP21235699A
Authority: JP
Inventors: 正美坂元
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 1999-07-27
Filing date: 1999-07-27
Publication date: 2005-05-25
Anticipated expiration: 2019-07-27
Also published as: JP2001045632A

Description

【０００１】
【発明の属する技術分野】
本発明は、ワイヤーハーネスの相互接続等に使用され、電源部に接続されて給電を行う電気接続箱に関するものである。
【０００２】
【従来の技術】
電気接続箱は、バスバー、電線布線等で構成された所定の回路を有する電源部と、ワイヤーハーネスを接続する複数のコネクタハウジングとを備えた構造が採られている。
【０００３】
近年、自動車に備えられる電気機器の増加に伴い、ワイヤーハーネスが電気機器の機能毎に分けられてサブワイヤーハーネスとして構成され、電気接続箱にはサブワイヤーハーネス毎に分割して接続されるに至っている。この結果、電気接続箱におけるサブワイヤーハーネスの接続構造が複雑となり、作業性が悪くなるとともに品質が安定しないおそれも出てきた。
【０００４】
そこで、ワイヤーハーネスとの接続を簡単にするために、このワイヤーハーネスを構成する複数のサブワイヤーハーネス単位で接続を行う形式の電気接続箱が、実開平６−８０３１８号として提案されている。この電気接続箱は、図７に示すように、ヒューズ、リレー等の電気部品を装着するための複数のキャビティ１を設けたカバー本体２と、該カバー本体２に突き合わせ固定され且つワイヤーハーネス３を構成する各電線４の端末の端子が装着されるハウジング部５を設けた裏カバー６とを備え、カバー本体２と裏カバー６の内部に電気部品及び電線端末が接続される回路が収容されている。裏カバー６は、ワイヤーハーネス３の行き先、負荷システム等により仕分けされるサブワイヤーハーネス３ａ、３ｂ、３ｃに対応して複数のサブワイヤーハーネス用裏カバー６ａ、６ｂ、６ｃとして分割形成されている。複数のキャビティ１及び回路は、該複数のサブワイヤーハーネス用裏カバー６ａ、６ｂ、６ｃに対応してブロック形成されている。
【０００５】
【発明が解決しようとする課題】
しかしながら、このような構成の電気接続箱では、サブワイヤーハーネス３ａ、３ｂ、３ｃ…の数が増えると、この電気接続箱のサブワイヤーハーネス用裏カバー６ａ、６ｂ、６ｃ…の数が増えて、これらサブワイヤーハーネス用裏カバー６ａ、６ｂ、６ｃ…が平面的に並ぶので、電気接続箱が大型化してしまい、車両組付性を悪くするといった問題があった。また、この電気接続箱では、サブワイヤーハーネス３ａ、３ｂ、３ｃをその端末でコネクタ接続しているので、コネクタの使用個数が増えて、コスト高になるといった問題があった。また、電気接続箱内部は、バスバー、電線布線での回路構成となっており、回路変更等の設変が難しく、ワイヤーハーネス生産性の貢献度が低いといった問題があった。
【０００６】
本発明の目的は、サブワイヤーハーネスの数が増えても大型化するのを可及的に抑制でき、車両組付の自由度が増し、組付作業が容易となる電気接続箱を提供することにある。
【０００７】
本発明の他の目的は、サブワイヤーハーネスの数が増えても、コネクタの使用個数が増えるのを抑制できる電気接続箱を提供することにある。
本発明の他の目的は、回路変更等の設変を容易にすることによりワイヤーハーネス生産性の向上を図れる電気接続箱を提供することにある。
【０００８】
【課題を解決するための手段】
請求項１に記載の発明は、ワイヤーハーネスとの接続が、このワイヤーハーネスを構成する複数のサブワイヤーハーネス単位で行われるようになっている電気接続箱において，
絶縁板の板面に前記各サブワイヤーハーネスを構成する各電線の裸の導線をそれぞれ通し互いに平行して配置される複数の電線セット溝を形成し、該各電線セット溝の底に貫通孔を複数形成してなり、前記サブワイヤーハーネスの各電線が個々のサブワイヤーハーネス毎に対応する１枚に平行に通されるようになっていて相互に積層されている複数枚のサブワイヤーハーネス接続板と、
前記各電線セット溝にセットされ該電線セット溝の溝幅に対応する横幅を備えた底板部の一端側の両側辺に電線導通部と電線把持部がそれぞれ対向するように立ち上がって形成し、他端側の一側辺に筒状の貫通接続導体接続部を延設してなる中間接続端子と、
長尺のタブ端子よりなり、前記各サブワイヤーハーネス接続板の各電線セット溝の底に形成されている貫通孔に対応する位置に群として並設されている各貫通接続導体を絶縁ハウジングにそれぞれ支持して構成するコネクタ部と、
前記サブワイヤーハーネス接続板の電線セット溝に装着される前記中間接続端子の底板部の一端側に接続され前記サブワイヤーハーネス接続板に通された前記サブワイヤーハーネスの電線に接続される接続電線の端部に接続され、電源部の接続口に嵌合接続される電源接続コネクタと、
を備え，
前記接続電線を接続した中間接続端子を前記サブワイヤーハーネス接続板の電線セット溝にセットして、該セットした前記中間接続端子の電線導通部間にサブワイヤーハーネスの電線を挿入し、前記コネクタ部の前記各貫通接続導体を前記各サブワイヤーハーネス接続板の各貫通孔に通すことにより、前記各貫通接続導体と前記各サブワイヤーハーネスの電線の裸の導線を電気的に接続して前記各サブワイヤーハーネス接続板に通された前記サブワイヤーハーネス上で立体的な給電回路を構成するようにしたことを特徴とする。
【０００９】
このように構成することにより、サブワイヤーハーネスの数の増加は、相互に積層されるサブワイヤーハーネス接続板の積層枚数が増えるだけであり、サブワイヤーハーネスの数が増えても、電気接続箱が大型化するのを可及的に抑制することができる。そして、貫通接続導体が積層されたサブワイヤーハーネス接続板に通されている複数の電線に電気的に接続される結果、サブワイヤーハーネスの数が増えてもサブワイヤーハーネスに接続し回路を形成するコネクタの使用個数が増えるのを抑制することができる。また、前記回路は各サブワイヤーハーネス接続板に通されたサブワイヤーハーネス上で構成されるので、ワイヤーハーネスの生産性が向上し、コストの低減が図れる。
【００１０】
更に、かかる構成による電気接続箱では電源部が無く、電源部に接続される電源接続コネクタを備えたので、電源部が無い分、電気接続箱の小型化が図れ、そして電気接続箱と電源部とを分けて車両に組付けることができるので、車両組付の自由度が増し、組付作業が容易となる。
【００１１】
請求項２に記載の発明は、請求項１において、前記各サブワイヤーハーネス接続板は、前記絶縁板の板面に所定の前記各サブワイヤーハーネスを構成する電線の裸の導線をそれぞれ通し互いに平行して配置される複数の電線セット溝を形成し、前記絶縁板の板面に前記各電線セット溝間に絶縁突状を突設して、該絶縁突状の側壁に前記電線セット溝と連通して電線セット溝の一部を構成すると共に該絶縁突状の側壁に前記中間接続端子の貫通接続導体接続部を係合させる係合凹部を長手方向に所定間隔で形成し、該係合凹部の前記各電線セット溝の底に前記貫通接続導体を挿通する貫通孔が長手方向に所定間隔で複数形成して構成したものである。
【００１２】
このようにして電気接続箱が形成されていると、各サブワイヤーハーネスを構成する電線は、対応するサブワイヤーハーネス接続板上で、各中間接続端子の電線導通部により電気的に接続され且つこの中間接続端子の貫通接続導体接続部でコネクタ部の各貫通接続導体に電気的に接続されることになり、各サブワイヤーハーネス接続板に通されたサブワイヤーハーネス上で、容易に所要の回路を構成することができる。そして、前記の回路は、中間接続端子のセット位置や貫通接続導体の支持位置を所要の位置に求め、或いは変更することにより回路変更等の設変が容易に行える。
【００１３】
請求項３に記載の発明は、請求項１又は２において、前記電源接続コネクタに接続されている接続電線は、前記サブワイヤーハーネス接続板にセットされ、前記サブワイヤーハーネスを構成する電線を延長して構成したものである。
【００１４】
このように、電源接続コネクタに接続される接続電線が、サブワイヤーハーネス接続板にセットされている電線を延長したものから構成されていると、接続電線とサブワイヤーハーネスの電線とを接続するための手段を必要とせず、その分構成が簡単になる。
【００１５】
請求項４に記載の発明は、請求項２において、前記電源接続コネクタに接続されている接続電線は、前記サブワイヤーハーネス接続板にセットされて、前記サブワイヤーハーネスを構成する電線に、前記中間接続端子を介して接続したものである。
【００１６】
このように構成すると、接続電線の長さは自由に求められ、電気接続箱と電源部との距離も自由に求めることができ、その結果、電気接続箱と電源部の車両組付自由度が一層増大する。
【００１７】
【発明の実施の形態】
図１乃至図６は本発明に係る電気接続箱における実施の形態の一例を示したものである。本例の電気接続箱においては、サブワイヤーハーネス３ａ、３ｂ、３ｃの各電線４が個々のサブワイヤーハーネス３ａ、３ｂ、３ｃ毎に対応する１枚に平行に通されるようになっていて相互に積層されている複数枚のサブワイヤーハーネス接続板７ａ、７ｂ、７ｃと、サブワイヤーハーネス接続板７ａ、７ｂ、７ｃを複数本の貫通接続導体８が貫通して所要の電線４に電気的に接続されて回路を形成するコネクタ部９と、前記サブワイヤーハーネス接続板７ａ、７ｂ、７ｃに通されたサブワイヤーハーネス３ａ、３ｂ、３ｃの電線４に接続されていて、別体として別途構成されている電源部１０に接続される電源接続コネクタ１１とを備えている。本例では、前記積層したサブワイヤーハーネス接続板７ａ、７ｂ、７ｃは、前記コネクタ部９と絶縁底板２２で鋏まれて保持されるようになっている。電源部１０には、前記電源接続コネクタ１１が接続される接続口１２の他に、ヒューズ、リレー等の電気部品を装着するためのキャビティ１が設けられている。
【００１８】
前記各サブワイヤーハーネス接続板７ａ、７ｂ、７ｃは次のように構成されている。絶縁板１３の板面に所定の各サブワイヤーハーネス３ａ、３ｂ、３ｃを構成する電線４の裸の導線４ａがそれぞれ通される互いに平行する複数の電線セット溝１４が形成され、この各電線セット溝１４の底に、前記貫通接続導体８が挿通される貫通孔１５が長手方向に所定間隔で複数形成されており、そして、前記各電線セット溝１４内に、各電線セット溝１４に通される電線４の裸の導線４ａに電気的に接続される電線導通部１６ａと所要の前記貫通接続導体８が貫通接続される貫通接続導体接続部１６ｂとを備えた中間接続端子１６が任意の位置にセットされている。
【００１９】
更に詳細には、前記絶縁板１３の板面には各電線セット溝１４間に絶縁突状１７が突設されており、この絶縁突状１７の側壁に、前記電線セット溝１４と連通して電線セット溝１４の一部を構成し、そして、前記中間接続端子１６の貫通接続導体接続部１６ｂを係合させる係合凹部１４ａが長手方向に所定間隔で形成されており、この係合凹部１４ａの底に前記貫通接続導体８が挿通される貫通孔１５が形成されている。
【００２０】
また、前記各電線セット溝１４にセットされる前記中間接続端子１６は、前記電線セット溝１４の溝幅に対応する横幅を持つ所定長さの底板部１６ｃの一端側の両側辺に、電線導通部１６ａと電線把持部１６ｄがそれぞれ対向するように立ち上がって形成されており、対向する電線導通部１６ａ同士及び電線把持部１６ｄ同士の間に電線４を挿入するようになっており、また、底板部１６ｃの他端側の一側辺に貫通接続導体８が貫通接続される筒状の前記貫通接続導体接続部１６ｂが延設されている。
【００２１】
前記電線導通部１６ａにはその内面側に、挿入された電線４に食い込み導線に接触し或いは裸の導線４ａに圧接して電気的に接続される導通突片１６ｅが形成されている。また、電線把持部１６ｄは内側に折り曲げられて前記挿入した電線４を把持するようになっている。
【００２２】
なお、本例のように電線４の裸の導線４ａを挿入すれば、電線把持部１６ｄは裸の導線４ａと導通する導通部にもなる。
【００２３】
前記底板部１６ｃの他端側の一側辺に延設された貫通接続導体接続部１６ｂは、これに挿通される貫通接続導体８と前記電線導通部１６ａ同士及び電線把持部１６ｄ同士の間に挿入された電線４と干渉しないようになっている。そして、この貫通接続導体接続部１６ｂは、中間接続端子１６を電線セット溝１４にセットしたとき絶縁突状１７の側壁に形成されている係合凹部１４ａに係合するようになっており、且つ係合したとき貫通接続導体接続部１６ｂの筒孔１６ｆと係合凹部１６ａの底に形成されている貫通孔１５とが一致するようになっている。また、貫通接続導体接続部１６ｂには、この貫通接続導体接続部１６ｂを係合凹部１４ａに係合させたとき係合凹部１４ａの壁面に弾性的に当接して貫通接続導体接続部１６ｂを支える弾性片１６ｇが設けられている。
【００２４】
なお、本例の中間接続端子１６では、図４に示すように貫通接続導体接続部１６ｂは底板部１６ｃの左側辺に延設されているが、図示しないが、底板部１６ｃの右側辺或いは左右両側辺に延設されたものも用いることができる。
【００２５】
このような構造の各サブワイヤーハーネス接続板７ａ、７ｂ、７ｃは、相互に積層されている。
【００２６】
前記コネクタ部９は、絶縁ハウジング１８に長尺のタブ端子よりなる各貫通接続導体８がそれぞれ支持されて構成されている。各貫通接続導体８は、各サブワイヤーハーネス接続板７ａ、７ｂ、７ｃの各電線セット溝１４の底に形成されている貫通孔１５に対応する位置に群として並設されている。これら群となっている各貫通接続導体８の端部を接続端子として包囲するようにコネクタハウジング１９が絶縁ハウジング１８に設けられている。
【００２７】
前記電源接続コネクタ１１は、前記サブワイヤーハーネス接続板７ａ、７ｂ、７ｃに通されたサブワイヤーハーネス３ａ、３ｂ、３ｃの電線４に接続されてサブワイヤーハーネス接続板７ａ、７ｂ、７ｃからの任意の長さに出ている接続電線２０に接続されている。この接続電線２０は前記サブワイヤーハーネス３ａ、３ｂ、３ｃの電線４に接続されている。
【００２８】
前記接続電線２０とサブワイヤーハーネス３ａ、３ｂ、３ｃの電線４との接続にあっては、本例では図５に示すように、前記中間接続端子１６を利用し、該中間接続端子１６の底板部１６ｃの一端側に前記接続電線２０の端部を接続手段２１によって接続し、この接続電線２０を接続した中間接続端子１６をサブワイヤーハーネス接続板７ａ、７ｂ、７ｃを構成する絶縁板１３の任意の電線セット溝１４の任意の位置にセットし、該セットされた中間接続端子１６の電線導通部１６ａ間に電線４を挿入することにより、或いは貫通接続導体接続部１６ｂに挿通された貫通接続導体８を介して、前記接続電線２０とサブワイヤーハーネス接続板７ａ、７ｂ、７ｃに通されたサブワイヤーハーネス３ａ、３ｂ、３ｃの電線４が接続されている。
【００２９】
なお、前記接続電線２０とサブワイヤーハーネス３ａ、３ｂ、３ｃの電線４との接続の他例として、図示しないが、サブワイヤーハーネス接続板７ａ、７ｂ、７ｃにセットされているサブワイヤーハーネス３ａ、３ｂ、３ｃの電線４を利用し、この電線４を延長して引き出し、引き出した部分を接続電線２０として利用することもできる。また、前記サブワイヤーハーネス接続板７ａ、７ｂ、７ｃを構成する絶縁板１３の電線セット溝１４にセットされるサブワイヤーハーネス３ａ、３ｂ、３ｃの電線４は、その端末でも或いは中間でもよい。
【００３０】
このような電気接続箱は、図１に示すように絶縁板１３の電線セット溝１４の所定の位置に中間接続端子１６をセットし、各サブワイヤーハーネス３ａ、３ｂ、３ｃを構成する電線４の裸の導線４ａを通して把持した各サブワイヤーハーネス接続板７ａ、７ｂ、７ｃを相互に重ねて積層し、コネクタ部９の各貫通接続導体８を各サブワイヤーハーネス接続板７ａ、７ｂ、７ｃの各貫通孔１５に通すと、前記貫通接続導体８が貫通した各貫通孔１５に存在する貫通接続導体接続部１６ｂに貫通接続導体８が貫通圧接して電気的に接続され、各貫通接続導体８と各電線４の裸の導線４ａが電気的に接続されて各サブワイヤーハーネス接続板７ａ、７ｂ、７ｃに通されたサブワイヤーハーネス３ａ、３ｂ、３ｃ上で立体的な給電回路が構成される。
【００３１】
このような電気接続箱によれば、サブワイヤーハーネス３ａ、３ｂ、３ｃ…の数の増加は、サブワイヤーハーネス接続板７ａ、７ｂ、７ｃ…の積層枚数が増えるだけであり、サブワイヤーハーネス３ａ、３ｂ、３ｃ…の数が増えても、電気接続箱が大型化するのを可及的に抑制することができる。
【００３２】
そして、前記貫通接続導体８が、積層された各サブワイヤーハーネス接続板７ａ、７ｂ、７ｃに通されている複数の電線４の裸の導線４ａに電気的に接続される結果、サブワイヤーハーネス３ａ、３ｂ、３ｃの数が増えてもサブワイヤーハーネス３ａ、３ｂ、３ｃに接続し回路を形成するコネクタの使用個数が増えるのを抑制することができる。また、前記回路は各サブワイヤーハーネス接続板７ａ、７ｂ、７ｃに通されたサブワイヤーハーネス３ａ、３ｂ、３ｃ上で構成されるので、ワイヤーハーネスの生産性が向上し、コストの低減が図れる。
【００３３】
また、前記の回路は、絶縁板１３の電線セット溝１４における中間接続端子１６のセット位置やコネクタ部９の絶縁ハウジング１８における貫通接続導体８の支持位置を所要の位置に求め、或いは変更することにより回路変更等の設変が容易に行える。
【００３４】
更に、かかる構成による電気接続箱には、電源部が無く、電源部に接続される電源接続コネクタ１１を備えたので、電源部が無い分、電気接続箱の小型化が図れ、そして電気接続箱と電源部とを分けて車両に組付けることができるので、車両組付の自由度が増し、組付作業が容易となる。
【００３５】
【発明の効果】
以上の説明したように請求項１に記載の発明によれば、サブワイヤーハーネスの数の増加は、相互に積層されるサブワイヤーハーネス接続板の積層枚数が増えるだけであるので、サブワイヤーハーネスの数が増えても、電気接続箱が大型化するのを可及的に抑制することができる。そして、貫通接続導体が積層されたサブワイヤーハーネス接続板に通されている複数の電線に電気的に接続される結果、サブワイヤーハーネスの数が増えてもサブワイヤーハーネスに接続し回路を形成するコネクタの使用個数が増えるのを抑制することができる。また、前記回路は各サブワイヤーハーネス接続板に通されたサブワイヤーハーネス上で構成されるので、ワイヤーハーネスの生産性が向上し、コストの低減を図ることができる。更に、かかる構成による電気接続箱では電源部が無く、電源部に接続される電源接続コネクタを備えたので、電源部が無い分、電気接続箱の小型化が図れ、そして電気接続箱と電源部とを分けて車両に組付けることができるので、車両組付の自由度が増し、組付作業を容易に行うことができる。
【００３６】
また請求項２に記載の発明によれば、各サブワイヤーハーネスを構成する電線は、対応するサブワイヤーハーネス接続板上で、各中間接続端子の電線導通部により電気的に接続され且つこの中間接続端子の貫通接続導体接続部でコネクタ部の各貫通接続導体に電気的に接続されることになり、各サブワイヤーハーネス接続板に通されたサブワイヤーハーネス上で、容易に所要の回路を構成することができる。そして、前記の回路は、中間接続端子のセット位置や貫通接続導体の支持位置を所要の位置に求め、或いは変更することにより回路変更等の設変を容易に行うことができる。
【００３７】
また請求項３に記載の発明によれば、電源接続コネクタに接続される接続電線が、サブワイヤーハーネス接続板にセットされ、サブワイヤーハーネスを構成する電線を延長したものから構成されているので、別な接続電線とサブワイヤーハーネスの電線とを接続するための手段を必要とせず、その分構成を簡単にすることができる。
【００３８】
また請求項４に記載の発明によれば、接続電線の長さは自由に求められ、電気接続箱と電源部との距離も自由に求めることができ、その結果、電気接続箱と電源部の車両組付自由度が一層増大するといった効果がある。
【図面の簡単な説明】
【図１】本発明に係る電気接続箱における実施の形態の一例を示す分解斜視図である。
【図２】本例で用いているサブワイヤーハーネス接続板となる絶縁板とこれにセットされる中間接続端子の斜視図である。
【図３】本例で用いているサブワイヤーハーネス接続板となる絶縁板の部分平面図である。
【図４】本例で用いている中間接続端子とこれに接続される貫通接続導体の一例を示す斜視図である。
【図５】電源接続コネクタの接続電線を接続した中間接続端子の斜視図である。
【図６】本例で用いているサブワイヤーハーネス接続板に各中間接続端子をセットしてこれら中間接続端子にサブワイヤーハーネスの電線をセットした状態の一例を示す部分平面図である。
【図７】従来の電気接続箱の分解斜視図である。
【符号の説明】
１キャビティ
２カバー本体
３ワイヤーハーネス
３ａ、３ｂ、３ｃサブワイヤーハーネス
４電線
４ａ裸の導線
５ハウジング部
６裏カバー
６ａ、６ｂ、６ｃサブワイヤーハーネス用裏カバー
７ａ、７ｂ、７ｃサブワイヤーハーネス接続板
８貫通接続導体
９コネクタ部
１０電源部
１１電源接続コネクタ
１２接続口
１３絶縁板
１４電線セット溝
１４ａ係合凹部
１５貫通孔
１６中間接続端子
１６ａ電線導通部
１６ｂ貫通接続導体接続部
１６ｃ底板部
１６ｄ電線把持部
１６ｅ導通突片
１６ｆ筒孔
１６ｇ弾性片
１７絶縁突状
１８絶縁ハウジング
１９コネクタハウジング
２０接続電線
２１接続手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electrical junction box that is used for interconnection of wire harnesses and the like and is connected to a power supply unit to supply power.
[0002]
[Prior art]
The electrical connection box has a structure including a power supply unit having a predetermined circuit composed of a bus bar, an electric wire, and the like, and a plurality of connector housings for connecting the wire harness.
[0003]
In recent years, with the increase in electrical equipment provided in automobiles, wire harnesses are divided into functions of electrical equipment and configured as sub-wire harnesses, and the electrical connection box has been divided and connected to each sub-wire harness. Yes. As a result, the connection structure of the sub-wire harness in the electrical junction box becomes complicated, and the workability deteriorates and the quality may not be stable.
[0004]
Then, in order to simplify a connection with a wire harness, the electrical connection box of the type which connects in the several sub wire harness unit which comprises this wire harness is proposed as Japanese Utility Model Publication No. 6-80318. As shown in FIG. 7, this electrical junction box has a cover body 2 provided with a plurality of cavities 1 for mounting electrical parts such as fuses and relays, a butt-fixed to the cover body 2, and a wire harness 3. And a back cover 6 provided with a housing portion 5 to which terminals of terminals of each electric wire 4 to be mounted are mounted, and a circuit to which electrical components and electric wire terminals are connected is accommodated inside the cover body 2 and the back cover 6. Yes. The back cover 6 is divided and formed as a plurality of sub-wire harness back covers 6a, 6b, 6c corresponding to the sub-wire harnesses 3a, 3b, 3c sorted by the destination of the wire harness 3, the load system, and the like. The plurality of cavities 1 and circuits are formed in blocks corresponding to the plurality of sub-wire harness back covers 6a, 6b, 6c.
[0005]
[Problems to be solved by the invention]
However, in the electrical junction box having such a configuration, when the number of sub-wire harnesses 3a, 3b, 3c... Increases, the number of sub-wire harness back covers 6a, 6b, 6c. Since these sub-wire harness back covers 6a, 6b, 6c,... Are arranged in a plane, there is a problem that the electrical connection box is enlarged and the vehicle assembly property is deteriorated. Further, in this electrical junction box, the sub-wire harnesses 3a, 3b, 3c are connected by connectors at their terminals, so that there is a problem that the number of connectors used increases and the cost increases. In addition, the inside of the electrical junction box has a circuit configuration with bus bars and wiring lines, and there is a problem that it is difficult to change the circuit or the like, and the contribution of wire harness productivity is low.
[0006]
An object of the present invention is to provide an electrical junction box that can suppress the enlargement as much as possible even if the number of sub-wire harnesses increases, increases the degree of freedom of vehicle assembly, and facilitates assembly work. It is in.
[0007]
Another object of the present invention is to provide an electrical junction box that can suppress an increase in the number of connectors used even if the number of sub-wire harnesses is increased.
Another object of the present invention is to provide an electrical junction box that can improve wire harness productivity by facilitating changes such as circuit changes.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 is an electrical junction box in which connection with a wire harness is performed in units of a plurality of sub-wire harnesses constituting the wire harness.
A plurality of wire set grooves are formed on the plate surface of the insulating plate and arranged in parallel with each other through the bare conductors of the wires constituting the sub-wire harnesses, and through holes are formed at the bottom of the wire set grooves. A plurality of sub-wire harness connecting plates, which are formed in a plurality , and each of the wires of the sub-wire harness is passed in parallel to one corresponding to each sub-wire harness, and are stacked on each other When,
Each of the electric wire set grooves is formed so that the electric wire conducting portion and the electric wire gripping portion are opposed to each other on both sides of one end side of the bottom plate portion having a width corresponding to the groove width of the electric wire set groove. An intermediate connection terminal formed by extending a cylindrical through connection conductor connecting portion on one side of the end side;
Each of the through-connecting conductors that are formed in a group at the position corresponding to the through-holes formed of long tab terminals and corresponding to the through-holes formed in the bottom of each electric wire set groove of each of the sub-wire harness connecting plates is respectively provided in the insulating housing. A connector part configured to support ;
The connection wire connected to the one end side of the bottom plate portion of the intermediate connection terminal attached to the wire set groove of the sub wire harness connection plate and connected to the wire of the sub wire harness passed through the sub wire harness connection plate A power connection connector connected to the end and fitted and connected to the connection port of the power supply;
With
The intermediate connection terminal to which the connection electric wire is connected is set in the electric wire set groove of the sub wire harness connection plate, and the electric wire of the sub wire harness is inserted between the electric connection portions of the set intermediate connection terminal. The through-connection conductors of the sub-wire harness connection plates are passed through the through-holes of the sub-wire harness connection plates, thereby electrically connecting the through-connection conductors to the bare conductors of the wires of the sub-wire harnesses. A three-dimensional power supply circuit is configured on the sub-wire harness passed through the wire harness connection plate .
[0009]
By configuring in this way, the increase in the number of sub-wire harnesses only increases the number of sub-wire harness connection plates stacked on each other, and even if the number of sub-wire harnesses increases, An increase in size can be suppressed as much as possible. And as a result of being electrically connected to the plurality of electric wires passed through the sub-wire harness connection plate in which the through connection conductors are laminated, even if the number of sub-wire harnesses increases, the sub-wire harness is connected to form a circuit. An increase in the number of connectors used can be suppressed. Moreover, since the said circuit is comprised on the sub wire harness passed through each sub wire harness connection board, productivity of a wire harness improves and it can aim at reduction of cost.
[0010]
Furthermore, since the electrical connection box having such a configuration has no power supply unit and a power supply connection connector connected to the power supply unit, the electrical connection box can be reduced in size by the absence of the power supply unit. Can be separately assembled to the vehicle, the degree of freedom of vehicle assembly is increased, and the assembly work is facilitated.
[0011]
According to a second aspect of the invention, according to claim 1, wherein each sub-wire harness connection plates, respectively through the bare conductors of wires forming a given each sub wire harnesses on the plate surface of the insulating plate from each other Forming a plurality of wire set grooves arranged in parallel , projecting an insulation protrusion between the wire set grooves on the plate surface of the insulating plate, and forming the wire set groove on the side wall of the insulation protrusion Engagement recesses are formed at predetermined intervals in the longitudinal direction to form a part of the wire set groove in communication and engage the through connection conductor connection part of the intermediate connection terminal on the insulating protruding side wall. A plurality of through holes through which the through connection conductors are inserted are formed at predetermined intervals in the longitudinal direction at the bottom of each of the electric wire set grooves of the recesses .
[0012]
When the electrical connection box is formed in this way, the electric wires constituting each sub-wire harness are electrically connected by the electric wire conducting portion of each intermediate connection terminal on the corresponding sub-wire harness connection plate. The through connection conductor connection part of the intermediate connection terminal is electrically connected to each through connection conductor of the connector part, and a required circuit can be easily formed on the sub wire harness passed through each sub wire harness connection plate. Can be configured. The circuit described above can be easily changed such as changing the circuit by obtaining or changing the setting position of the intermediate connection terminal and the support position of the through-connection conductor to a required position.
[0013]
The invention according to claim 3, in claim 1 or 2, connecting wires connected to the power supply connector is set in the sub-wire harness connection plates to extend the wires forming the sub-wire harness it is obtained by configuration Te.
[0014]
Thus, when the connection electric wire connected to the power supply connector is composed of an extension of the electric wire set on the sub-wire harness connection plate, the connection electric wire and the electric wire of the sub-wire harness are connected. Therefore, the configuration is simplified.
[0015]
According to a fourth aspect of the present invention, in the second aspect, the connection electric wire connected to the power connection connector is set on the sub-wire harness connection plate, and the intermediate wire is connected to the electric wire constituting the sub-wire harness. which are connected via the connection terminal.
[0016]
If comprised in this way, the length of a connection electric wire can be calculated | required freely and the distance of an electrical junction box and a power supply part can also be calculated | required freely, As a result, the vehicle assembly freedom degree of an electrical junction box and a power supply part can be obtained. Further increase.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 thru | or FIG. 6 shows an example of embodiment in the electrical-connection box based on this invention. In the electrical junction box of this example, the electric wires 4 of the sub-wire harnesses 3a, 3b, and 3c are passed through one sheet corresponding to each sub-wire harness 3a, 3b, and 3c in parallel. The plurality of sub-wire harness connection plates 7a, 7b, 7c and the plurality of through-connection conductors 8 that pass through the sub-wire harness connection plates 7a, 7b, 7c are electrically connected to the required electric wires 4. It is connected to the connector part 9 that is connected to form a circuit and the electric wires 4 of the sub-wire harnesses 3a, 3b, and 3c that are passed through the sub-wire harness connection plates 7a, 7b, and 7c, and is separately configured as a separate body. And a power supply connector 11 connected to the power supply unit 10. In this example, the laminated sub-wire harness connection plates 7 a, 7 b, 7 c are sandwiched and held by the connector portion 9 and the insulating bottom plate 22. The power supply unit 10, in addition to the connection port 12 the power supply connector 11 is connected, a fuse, Ru Tei cavity 1 is provided for mounting the electrical components such as relays.
[0018]
Each of the sub-wire harness connection plates 7a, 7b, 7c is configured as follows. A plurality of parallel wire set grooves 14 through which the bare conductors 4a of the electric wires 4 constituting the predetermined sub-wire harnesses 3a, 3b, 3c are respectively passed are formed on the plate surface of the insulating plate 13, and each of these electric wire sets A plurality of through-holes 15 through which the through-connecting conductors 8 are inserted are formed at predetermined intervals in the longitudinal direction at the bottom of the groove 14, and are passed through the wire setting grooves 14 in the wire setting grooves 14. An intermediate connection terminal 16 having an electric wire conduction portion 16a electrically connected to the bare conductive wire 4a of the electric wire 4 and a through connection conductor connection portion 16b through which the required through connection conductor 8 is through-connected is at an arbitrary position. Is set.
[0019]
More specifically, an insulating protrusion 17 is provided between the wire setting grooves 14 on the plate surface of the insulating plate 13, and the side wall of the insulating protrusion 17 communicates with the wire setting groove 14. Engagement recesses 14a that constitute a part of the wire setting groove 14 and engage the through-connection conductor connection portions 16b of the intermediate connection terminals 16 are formed at predetermined intervals in the longitudinal direction. The engagement recesses 14a A through-hole 15 through which the through-connection conductor 8 is inserted is formed at the bottom.
[0020]
In addition, the intermediate connection terminal 16 set in each of the wire setting grooves 14 is connected to both sides on one end side of the bottom plate portion 16c having a predetermined length having a lateral width corresponding to the groove width of the wire setting groove 14. The portion 16a and the wire gripping portion 16d are formed so as to face each other, and the electric wire 4 is inserted between the facing wire conducting portions 16a and between the wire gripping portions 16d, and the bottom plate The cylindrical through-connecting conductor connecting portion 16b extending through the through-connecting conductor 8 is extended to one side of the other end side of the portion 16c.
[0021]
On the inner surface side of the electric wire conducting portion 16a, there is formed a conductive protrusion 16e that bites into the inserted electric wire 4 and comes into contact with the conducting wire or presses and contacts the bare conducting wire 4a. The electric wire gripping portion 16d is bent inward to grip the inserted electric wire 4.
[0022]
In addition, if the naked conducting wire 4a of the electric wire 4 is inserted like this example, the electric wire holding part 16d will also become a conduction | electrical_connection part electrically connected with the naked conducting wire 4a.
[0023]
The through-connection conductor connection portion 16b extending on one side of the other end side of the bottom plate portion 16c is provided between the through-connection conductor 8 inserted through the bottom plate portion 16c, the wire conduction portions 16a, and the wire gripping portions 16d. It does not interfere with the inserted electric wire 4. And this penetration connection conductor connection part 16b is engaged with the engagement recessed part 14a formed in the side wall of the insulation protrusion 17, when the intermediate connection terminal 16 is set in the electric wire set groove 14, and When engaged, the cylindrical hole 16f of the through-connecting conductor connecting portion 16b and the through-hole 15 formed in the bottom of the engaging recess 16a coincide with each other. Further, the through-connection conductor connection portion 16b supports the through-connection conductor connection portion 16b by elastically contacting the wall surface of the engagement recess portion 14a when the through-connection conductor connection portion 16b is engaged with the engagement recess portion 14a. An elastic piece 16g is provided.
[0024]
In the intermediate connection terminal 16 of this example, the through connection conductor connection portion 16b extends to the left side of the bottom plate portion 16c as shown in FIG. 4, but although not shown, the right side or left and right sides of the bottom plate portion 16c. Those extending on both sides can also be used.
[0025]
The sub-wire harness connection plates 7a, 7b, 7c having such a structure are stacked on each other.
[0026]
The connector portion 9 is configured by supporting each through-connecting conductor 8 made of a long tab terminal on an insulating housing 18. Each through-connection conductor 8 is arranged in parallel at a position corresponding to the through-hole 15 formed in the bottom of each electric wire set groove 14 of each sub-wire harness connection plate 7a, 7b, 7c. A connector housing 19 is provided on the insulating housing 18 so as to surround the end portions of the through-connecting conductors 8 in the group as connection terminals.
[0027]
The power connection connector 11 is connected to the electric wires 4 of the sub wire harnesses 3a, 3b, and 3c passed through the sub wire harness connection plates 7a, 7b, and 7c, and arbitrarily connected from the sub wire harness connection plates 7a, 7b, and 7c. It is connected to the connection electric wire 20 which has come out in the length. The connecting wire 20 is connected to the wires 4 of the sub-wire harnesses 3a, 3b, and 3c.
[0028]
In the connection between the connecting wire 20 and the wires 4 of the sub-wire harnesses 3a, 3b, 3c, in this example, as shown in FIG. 5, the intermediate connecting terminal 16 is used, and the bottom plate of the intermediate connecting terminal 16 is used. An end of the connecting wire 20 is connected to one end of the portion 16c by connecting means 21, and the intermediate connecting terminal 16 to which the connecting wire 20 is connected is connected to the insulating plate 13 constituting the sub-wire harness connecting plates 7a, 7b, 7c. A through-connection that is set at an arbitrary position in an arbitrary electric-wire setting groove 14 and the electric wire 4 is inserted between the electric-wire conducting portions 16a of the set intermediate connection terminal 16 or is inserted into the through-connection conductor connecting portion 16b. Via the conductor 8, the electric wires 4 of the sub wire harnesses 3a, 3b, 3c passed through the connection electric wires 20 and the sub wire harness connection plates 7a, 7b, 7c are connected.
[0029]
In addition, as another example of the connection between the connecting wire 20 and the wires 4 of the sub-wire harnesses 3a, 3b, 3c, although not shown, the sub-wire harnesses 3a set on the sub-wire harness connecting plates 7a, 7b, 7c, It is also possible to use the wire 4 of 3b and 3c, extend the wire 4 and draw it out, and use the drawn portion as the connection wire 20. Further, the electric wires 4 of the sub-wire harnesses 3a, 3b, 3c set in the electric-wire setting grooves 14 of the insulating plate 13 constituting the sub-wire harness connecting plates 7a, 7b, 7c may be at their terminals or in the middle.
[0030]
In such an electrical junction box, as shown in FIG. 1, the intermediate connection terminal 16 is set at a predetermined position of the electrical wire setting groove 14 of the insulating plate 13, and the electrical wires 4 constituting the sub-wire harnesses 3a, 3b, and 3c. The sub-wire harness connection plates 7a, 7b, 7c gripped through the bare conductor 4a are stacked on top of each other, and the through-connection conductors 8 of the connector portion 9 are passed through the sub-wire harness connection plates 7a, 7b, 7c. When passing through the hole 15, the through connection conductor 8 is press-contacted and electrically connected to the through connection conductor connection portion 16 b existing in each through hole 15 through which the through connection conductor 8 has passed. A three-dimensional power supply circuit is configured on the sub-wire harnesses 3a, 3b, and 3c that are electrically connected to the bare conductors 4a of the electric wires 4 and passed through the sub-wire harness connection plates 7a, 7b, and 7c.
[0031]
According to such an electrical junction box, the increase in the number of sub-wire harnesses 3a, 3b, 3c... Only increases the number of sub-wire harness connection plates 7a, 7b, 7c. Even if the number of 3b, 3c... Increases, it is possible to suppress the increase in the size of the electrical junction box as much as possible.
[0032]
And as a result of the said through-connection conductor 8 being electrically connected to the bare conducting wire 4a of the some electric wire 4 currently passed by each laminated | stacked subwire harness connection board 7a, 7b, 7c, subwire harness 3a Even if the number of 3b and 3c increases, it is possible to suppress an increase in the number of connectors that are connected to the sub-wire harnesses 3a, 3b, and 3c to form a circuit. Further, since the circuit is configured on the sub-wire harnesses 3a, 3b, and 3c passed through the sub-wire harness connection plates 7a, 7b, and 7c, the productivity of the wire harness can be improved and the cost can be reduced.
[0033]
Further, the circuit obtains or changes the setting position of the intermediate connection terminal 16 in the wire setting groove 14 of the insulating plate 13 and the support position of the through-connection conductor 8 in the insulating housing 18 of the connector portion 9 to a required position. This makes it easy to change settings such as circuit changes.
[0034]
Furthermore, since the electrical junction box having such a configuration does not have a power supply unit and includes a power supply connector 11 connected to the power supply unit, the electrical junction box can be reduced in size by the absence of the power supply unit, and the electrical junction box And the power supply unit can be separately assembled to the vehicle, so that the degree of freedom of vehicle assembly is increased and the assembly work is facilitated.
[0035]
【The invention's effect】
As described above, according to the first aspect of the present invention, the increase in the number of sub-wire harnesses is merely an increase in the number of sub-wire harness connection plates stacked on each other. Even if the number increases, an increase in the size of the electrical junction box can be suppressed as much as possible. And as a result of being electrically connected to the plurality of electric wires passed through the sub-wire harness connection plate in which the through connection conductors are laminated, even if the number of sub-wire harnesses increases, the sub-wire harness is connected to form a circuit. An increase in the number of connectors used can be suppressed. Moreover, since the said circuit is comprised on the sub wire harness passed through each sub wire harness connection board, productivity of a wire harness can improve and it can aim at reduction of cost. Furthermore, since the electrical connection box having such a configuration has no power supply unit and a power supply connection connector connected to the power supply unit, the electrical connection box can be reduced in size by the absence of the power supply unit. Therefore, the degree of freedom for assembling the vehicle is increased, and the assembling work can be easily performed.
[0036]
According to the invention described in claim 2, the electric wires constituting each sub-wire harness are electrically connected by the electric-wire conducting portion of each intermediate connection terminal on the corresponding sub-wire harness connection plate and this intermediate connection. It is electrically connected to each through-connection conductor of the connector part at the through-connection conductor connection part of the terminal, and a required circuit can be easily configured on the sub-wire harness passed through each sub-wire harness connection plate. be able to. The circuit described above can easily change the circuit or the like by obtaining or changing the setting position of the intermediate connection terminal or the support position of the through-connection conductor to a required position.
[0037]
According to the invention described in claim 3, since the connecting wire connected to the power connection connector is set on the sub-wire harness connecting plate and is formed by extending the wire constituting the sub-wire harness . The means for connecting another connection electric wire and the electric wire of the sub-wire harness is not required, and the configuration can be simplified correspondingly.
[0038]
According to the invention described in claim 4, the length of the connection electric wire can be determined freely, and the distance between the electric connection box and the power supply unit can be determined freely. There is an effect that the degree of freedom of vehicle assembly is further increased.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an example of an embodiment of an electrical junction box according to the present invention.
FIG. 2 is a perspective view of an insulating plate serving as a sub-wire harness connecting plate used in this example and an intermediate connection terminal set on the insulating plate.
FIG. 3 is a partial plan view of an insulating plate serving as a sub-wire harness connecting plate used in this example.
FIG. 4 is a perspective view showing an example of an intermediate connection terminal used in this example and a through connection conductor connected to the intermediate connection terminal.
FIG. 5 is a perspective view of an intermediate connection terminal to which a connection wire of a power connection connector is connected.
FIG. 6 is a partial plan view showing an example of a state in which each intermediate connection terminal is set on the sub-wire harness connection plate used in this example and the wires of the sub-wire harness are set on these intermediate connection terminals.
FIG. 7 is an exploded perspective view of a conventional electrical junction box.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cavity 2 Cover main body 3 Wire harness 3a, 3b, 3c Sub wire harness 4 Electric wire 4a Bare conductor 5 Housing part 6 Back cover 6a, 6b, 6c Sub wire harness back cover 7a, 7b, 7c Sub wire harness connection board 8 Through connection conductor 9 Connector portion 10 Power supply portion 11 Power connection connector 12 Connection port 13 Insulating plate 14 Wire set groove 14a Engaging recess 15 Through hole 16 Intermediate connection terminal 16a Wire conduction portion 16b Through connection conductor connection portion 16c Bottom plate portion 16d Wire gripping Portion 16e Conductive protrusion 16f Tube hole 16g Elastic piece 17 Insulating protrusion 18 Insulating housing 19 Connector housing 20 Connecting wire 21 Connecting means

Claims

In the electrical junction box where the connection with the wire harness is made in units of a plurality of sub-wire harnesses constituting the wire harness,
A plurality of wire set grooves are formed on the plate surface of the insulating plate and arranged in parallel with each other through the bare conductors of the wires constituting the sub-wire harnesses, and through holes are formed at the bottom of the wire set grooves. A plurality of sub-wire harness connecting plates, which are formed in a plurality , and each of the wires of the sub-wire harness is passed in parallel to one corresponding to each sub-wire harness, and are stacked on each other When,
Each of the electric wire set grooves is formed so that the electric wire conducting portion and the electric wire gripping portion are opposed to each other on both sides of one end side of the bottom plate portion having a width corresponding to the groove width of the electric wire set groove. An intermediate connection terminal formed by extending a cylindrical through connection conductor connecting portion on one side of the end side;
Each of the through-connecting conductors that are formed in a group at the position corresponding to the through-holes formed of long tab terminals and corresponding to the through-holes formed in the bottom of each electric wire set groove of each of the sub-wire harness connecting plates is respectively provided in the insulating housing. A connector part configured to support ;
The connection wire connected to the one end side of the bottom plate portion of the intermediate connection terminal attached to the wire set groove of the sub wire harness connection plate and connected to the wire of the sub wire harness passed through the sub wire harness connection plate A power connection connector connected to the end and fitted and connected to the connection port of the power supply;
With
The intermediate connection terminal to which the connection electric wire is connected is set in the electric wire set groove of the sub wire harness connection plate, and the electric wire of the sub wire harness is inserted between the electric connection portions of the set intermediate connection terminal. The through-connection conductors of the sub-wire harness connection plates are passed through the through-holes of the sub-wire harness connection plates, thereby electrically connecting the through-connection conductors to the bare conductors of the wires of the sub-wire harnesses. An electrical connection box characterized in that a three-dimensional power supply circuit is configured on the sub-wire harness passed through a wire harness connection plate .

Wherein each sub-wire harness connection plates to form a plurality of wire setting groove disposed the predetermined the a plate surface of the insulating plate respectively through the bare wire of the wire constituting each sub-wire harnesses in parallel to each other Insulating protrusions project between the respective wire set grooves on the plate surface of the insulating plate, and communicate with the wire set grooves on the side walls of the insulating protrusions to form a part of the wire set grooves and Engagement recesses for engaging the through-connection conductor connecting portions of the intermediate connection terminals are formed at predetermined intervals in the longitudinal direction on the insulating protruding side walls, and the through-connection conductors are formed at the bottoms of the respective wire setting grooves of the engagement recesses. The electrical connection box according to claim 1 , wherein a plurality of through-holes through which the wire is inserted are formed at predetermined intervals in the longitudinal direction .

Connection wires connected to the power supply connector, the set to the sub-wire harness connection plates, electrical connection according to claim 1 or 2 is constructed by extending the wires forming the sub-wire harness box.

Connection wires connected to the power supply connector is set to the sub-wire harness connection plates, the wire that constitutes the sub-wire harness, to claim 2 which are connected through the intermediate connection terminals The electrical junction box described.