JP4319901B2 - Electrical junction box - Google Patents

Electrical junction box Download PDF

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JP4319901B2
JP4319901B2 JP2003424449A JP2003424449A JP4319901B2 JP 4319901 B2 JP4319901 B2 JP 4319901B2 JP 2003424449 A JP2003424449 A JP 2003424449A JP 2003424449 A JP2003424449 A JP 2003424449A JP 4319901 B2 JP4319901 B2 JP 4319901B2
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cover
guide
wall
connector
opening
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JP2005185034A (en
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英樹 河村
哲由 山▲崎▼
智宏 杉浦
康仁 鈴木
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Yazaki Corp
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Yazaki Corp
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Description

本発明は、ヒューズ等を装着する接続箱本体の開口部をカバーの覆い壁でスライド式に閉止する構造の電気接続箱に関するものである。   The present invention relates to an electrical junction box having a structure in which an opening of a junction box body to which a fuse or the like is attached is slidably closed by a cover covering wall.

図5は従来の電気接続箱の一形態を示すものである(特許文献1参照)。   FIG. 5 shows one form of a conventional electrical junction box (see Patent Document 1).

この電気接続箱81は、小電流用のヒューズ82や大電流用のヒュージブルリンク等を装着する合成樹脂製のメインカバー83と、メインカバー83の下側に装着される合成樹脂製のロアカバー84と、メインカバー83の上側に装着される合成樹脂製のアッパカバー(図示せず)とを備えるものである。   The electrical connection box 81 includes a synthetic resin main cover 83 for mounting a small current fuse 82, a large current fusible link, and the like, and a synthetic resin lower cover 84 mounted below the main cover 83. And a synthetic resin upper cover (not shown) mounted on the upper side of the main cover 83.

メインカバー83は上部にヒューズ装着部85やヒュージブルリンク装着部86を有し、メインカバー83の下部開口からヒューズ82やヒュージブルリンクに対する接続用の端子付きの電線87や導電金属製の板状のバスバー(図示せず)が装着される。   The main cover 83 has a fuse mounting portion 85 and a fusible link mounting portion 86 in the upper part, and an electric wire 87 with a terminal for connection to the fuse 82 and the fusible link from the lower opening of the main cover 83 or a conductive metal plate shape. A bus bar (not shown) is attached.

メインカバー83の前側の壁部88には長手方向ほぼ中央において縦長の開口部89が設けられ、例えばメインカバー83内のバスバーの孔部にボルトとナットで締め付け接続する電源側の端子付きの電線(図示せず)が開口部89内に装着される。各電線87はワイヤハーネスとしてロアカバー84の側部開口90から外部に導出されて、図示しない車両側の電装品や補機等に接続される。   The wall 88 on the front side of the main cover 83 is provided with a vertically long opening 89 at substantially the center in the longitudinal direction. For example, a wire with a terminal on the power supply side that is tightened and connected to a hole of a bus bar in the main cover 83 with a bolt and a nut. (Not shown) is mounted in the opening 89. Each electric wire 87 is led out to the outside from the side opening 90 of the lower cover 84 as a wire harness, and is connected to a vehicle-side electrical component, auxiliary equipment, etc. (not shown).

ロアカバー84の側壁91には、開口部89に対する閉止用の覆い壁(覆い部)92が上向きに突出して一体に設けられている。覆い壁92はメインカバー83の開口部両側のガイド突部(ガイド部)93の内側にスライド案内されて開口部89を封止する。
特開2001−156469号公報(図1,図5)
On the side wall 91 of the lower cover 84, a covering wall (covering portion) 92 for closing the opening 89 is integrally provided so as to protrude upward. The cover wall 92 is slidably guided inside guide protrusions (guide portions) 93 on both sides of the opening of the main cover 83 to seal the opening 89.
JP 2001-156469 A (FIGS. 1 and 5)

しかしながら、上記従来の電気接続箱81にあっては、メインカバー(接続箱本体)82のガイド部93が短い場合に、ガイド部93の樹脂成型性は良好であるが、覆い部92に対する案内性が悪くなったり、覆い部92のガタ付きを生じたり、ガイド部93の上下に隙間を生じ、その隙間からメインカバー82内に水滴や塵が入りやすくなるといった懸念があった。それを防ぐためにガイド部93を長く形成する場合には、例えばガイド部93の欠肉等を生じやすくなる等、樹脂成型性が悪くなり、また、樹脂成型金型も大型化・高コスト化するという問題があった。   However, in the conventional electrical junction box 81, when the guide portion 93 of the main cover (junction box main body) 82 is short, the resin moldability of the guide portion 93 is good, but the guideability to the cover portion 92 is good. There are concerns that the cover portion 92 may become loose, the guide portion 93 may have a gap, and a gap may be formed above and below the guide portion 93 so that water droplets and dust can easily enter the main cover 82 from the gap. In order to prevent this, when the guide portion 93 is formed long, the resin moldability is deteriorated, for example, the guide portion 93 is likely to be thinned, and the resin mold is also increased in size and cost. There was a problem.

本発明は、上記した点に鑑み、接続箱本体の開口部を覆うカバーの覆い部に対するスライド方向の長いガイド部を簡単に且つ確実に且つ低コストで形成することができる電気接続箱を提供することを目的とする。   In view of the above-described points, the present invention provides an electrical junction box that can easily and reliably form a long guide portion in a sliding direction with respect to a cover portion of a cover that covers an opening of a junction box main body at a low cost. For the purpose.

上記目的を達成するために、本発明の請求項1に係る電気接続箱は、垂直な外壁に下端から切欠形成された開口部を有する接続箱本体と、水平な基壁の下側にコネクタハウジングを有して該接続箱本体の下部開口内に装着されるコネクタブロックと、該基壁の上側に配置されて下向きの端子部を該基壁の孔部から該コネクタハウジング内に突出させるバスバー組立体と、該開口部を塞ぐ板状の覆い部を有して該コネクタブロックの下側から該接続箱本体に装着されるカバーとを備える電気接続箱であって、前記開口部の周縁の上半側に前記覆い部をスライド係合させるガイド部が設けられ、該ガイド部の外側に隣接して該周縁の少なくとも下半側に左右一対のガイドレールが設けられ、前記コネクタブロックの垂直な外壁に、該ガイドレールを係合させる左右一対のスライド係合部が前記基壁よりも高く突設され、該外壁に該スライド係合部に沿うガイド壁部が上向きに延設され、該スライド係合部と該ガイド壁部と該ガイド部の下側における該周縁の下半側部分とで囲まれて、該覆い部をスライド係合させるガイド溝が構成されることを特徴とする。 To achieve the above object, an electrical junction box according to claim 1 of the present invention comprises a junction box main body having an opening formed in a vertical outer wall from a lower end thereof, and a connector housing below a horizontal base wall. A connector block that is mounted in the lower opening of the junction box body and a bus bar set that is disposed on the upper side of the base wall and projects a downward terminal portion from the hole of the base wall into the connector housing An electrical connection box comprising a solid body and a cover having a plate-like covering portion that closes the opening, and is attached to the connection box body from the lower side of the connector block. A guide portion for slidingly engaging the cover portion is provided on the half side, and a pair of left and right guide rails is provided on at least the lower half side of the peripheral edge adjacent to the outside of the guide portion, and a vertical outer wall of the connector block The guide rail A pair of left and right slide engaging portions to be engaged protrudes higher than the base wall, and a guide wall portion along the slide engaging portion extends upward on the outer wall. The slide engaging portion and the guide wall The guide groove is configured to be slidably engaged with the cover portion by being surrounded by the portion and the lower half side portion of the peripheral edge on the lower side of the guide portion .

上記構成により、接続箱本体内に収容されたコネクタブロックが覆い部に対するガイド部の役割を果たし、カバーを接続箱本体に組み付けるに従って、覆い部が先ずコネクタブロックに沿ってスライド案内され、次いでコネクタブロックと接続箱本体との両方に沿ってスライド案内される。このように、コネクタブロックにもガイド部の役割を持たせることで、接続箱本体のガイド部が短くて済み、ガイド部の樹脂成形性が向上する。 With the above structure, housed in the connection box body a connector block served guide portion to the cover portion, in accordance with assembling the cover to the junction box body, the cover portion is slid guided first along the connector block, then the connector block And a slide guide along both the junction box body. Thus, by providing the connector block also with the role of the guide portion, the guide portion of the connection box body can be shortened, and the resin moldability of the guide portion is improved.

また、カバーを接続箱本体に組み付けるに従って、覆い部がコネクタブロックのガイド部と接続箱本体のガイド部とに沿って位置決めされつつスムーズにスライド案内される。覆い部が開口部を閉止した後は両ガイド部によって覆い部のガタ付きが防止される。 Further , as the cover is assembled to the junction box body, the cover portion is smoothly slid and guided while being positioned along the guide portion of the connector block and the guide portion of the junction box body. After the cover portion closes the opening, the guide portions are prevented from rattling by the both guide portions.

また、コネクタブロックのガイド部と接続箱本体のガイド部とが直線的に連続して位置し、覆い部がコネクタブロックのガイド部から直に接続箱本体のガイド部に移行する。これにより、両ガイド部間における覆い部の引っ掛かりやガタ付き等が防止され、覆い部のスライド係合性及びスライド離脱性が向上する。 Further, the guide portion of the connector block and the guide portion of the connection box main body are linearly and continuously located, and the cover portion moves directly from the guide portion of the connector block to the guide portion of the connection box main body. This prevents the cover portion from being caught or rattled between the two guide portions, and improves the slide engagement and slide detachability of the cover portion.

また、板状の覆い部の幅方向両側にガイド部が配置され、板状の覆い部がガイド部に沿ってスムーズにスライド係合及び離脱される。覆い部が板状であるから、広い開口部に対応可能である。 Further , guide portions are arranged on both sides in the width direction of the plate-like cover portion, and the plate-like cover portion is smoothly slidably engaged and detached along the guide portion. Since the cover is plate-shaped, it can accommodate a wide opening.

また、コネクタブロックがスライド係合用のガイドレールに沿って接続箱本体内にスムーズにスライド案内される。これにより、接続箱本体へのコネクタブロックの組付性が向上する。スライド係合の一部を前記覆い部に対するガイド部として流用することで、構造が簡素化・低コスト化される。 Further, the connector block is smoothly slid and guided into the junction box body along the slide engaging guide rail . Thereby, the assembly | attachment property of the connector block to a junction box main body improves. By diverting a portion of the slide engaging portion as a guide portion for said cover portion, structure is simplified and cost reduction.

請求項に係る電気接続箱は、請求項記載の電気接続箱において、前記開口部を通じて前記接続箱本体内の前記バスバー組立体に被接続体が電気的に接続されることを特徴とする。 The electrical junction box according to claim 2 is the electrical junction box according to claim 1 , wherein the body to be connected is electrically connected to the bus bar assembly in the junction box body through the opening. .

上記構成により、例えば接続体としてバスバー、被接続体として後付けヒューズを用い、バスバーに後付けヒューズを装着する際に、カバーを接続箱本体から離脱させて開口部から覆い部を外し、開口部を通じて内側のバスバーに後付けヒューズを接続する。   With the above configuration, for example, when a bus bar is used as a connecting body and a post fuse is used as a connected body, and a post fuse is attached to the bus bar, the cover is removed from the connection box body, the cover is removed from the opening, and the inside is opened through the opening. Connect a retrofitted fuse to the bus bar.

請求項に係る電気接続箱は、請求項1又は2記載の電気接続箱において、前記コネクタブロックの前記基壁が前記バスバー組立体を支持し、前記カバーとの間で前記コネクタハウジングと前記端子部とで成るコネクタがワイヤハーネスのコネクタに接続されることを特徴とする。 Electrical connection box according to claim 3, wherein the electrical junction box according to claim 1 or 2, wherein said base wall of said connector block to support the bus bar assembly, and the connector housing between a front Stories cover A connector comprising a terminal portion is connected to a connector of a wire harness .

上記構成により、接続体としてバスバー、他の回路としてワイヤハーネスを用い、コネクタブロックのコネクタハウジングにバスバーの端子部を収容してコネクタを構成させ、コネクタにワイヤハーネスのコネクタを嵌合接続させる。 With the above structure, contact bus bar as connection body, using a wire harness as other circuits, to configure the connector to accommodate the terminal portions of the bus bars to the connector housing of the connector block, the wire harness connector is fitted and connected to the connector.

請求項1記載の発明によれば、覆い部に対するガイド部の役割をコネクタブロックにも持たせたことで、接続箱本体のガイド部が短くて済み、ガイド部の樹脂成形性が向上して、電気接続箱の生産性が高まると共に、ガイド部を形成する成形金型が小型化・低コスト化される。 According to the invention of claim 1, by providing the connector block with the role of the guide portion with respect to the cover portion, the guide portion of the connection box body can be shortened, and the resin moldability of the guide portion is improved. The productivity of the electrical junction box is increased, and the molding die for forming the guide portion is reduced in size and cost.

また、開口部の周囲において覆い部がコネクタブロックのガイド部と接続箱本体のガイド部とに沿って位置決めされつつスムーズにスライド案内されるから、覆い部の閉止性及び開扉性が向上すると共に、接続箱本体へのカバーの組付性が向上し、さらにガタ付きが防止されて、異音や摩耗や隙間の発生(内部への雨水や塵等の侵入)が確実に防止される。 In addition , since the cover is smoothly slid and guided while being positioned along the guide portion of the connector block and the guide portion of the connection box body around the opening portion, the closing performance and the door opening performance of the cover portion are improved. The assembling property of the cover to the junction box main body is improved, and rattling is prevented, and the generation of abnormal noise, wear, and gaps (intrusion of rainwater, dust, etc. into the interior) is surely prevented.

また、覆い部がコネクタブロックのガイド部から直接に接続箱本体のガイド部に摺接するから、覆い部のスライド係合性が高まり、接続箱本体へのカバーの組付作業性が向上する。 Further , since the cover portion is in sliding contact with the guide portion of the connection box body directly from the guide portion of the connector block , the sliding engagement of the cover portion is enhanced, and the workability of assembling the cover to the connection box body is improved.

また、板状の覆い部をガイド部に沿ってスムーズにスライドさせることができ、板状の覆い部で広い開口部を覆って、接続箱本体内を外部から保護し、且つ広い開口部を通じて接続等の作業を容易に行うことができる。 In addition , the plate-shaped cover can be smoothly slid along the guide, covers the wide opening with the plate-shaped cover, protects the inside of the connection box body from the outside, and connects through the wide opening Etc. can be easily performed.

またコネクタブロックをスライド係合用のガイドレールに沿って接続箱本体内にスムーズに係合させることができ、接続箱本体へのコネクタブロックの組付性が向上する。スライド係合の一部を前記覆い部に対するガイド部として流用することで、コネクタブロックの構造が簡素化・低コスト化される。 Further , the connector block can be smoothly engaged with the inside of the connection box body along the guide rails for slide engagement, and the assembling property of the connector block to the connection box body is improved. In Rukoto to divert a portion of the slide engaging portion as a guide portion for said cover portion, structure of the connector block is simplified and cost reduction.

請求項記載の発明によれば、開口部を開けて例えば接続箱本体内の接続体であるバスバーに被接続体である後付けヒューズを作業性良く容易に接続させることができる。 According to the second aspect of the present invention, it is possible to easily connect the post-mounted fuse as the connected body with good workability to the bus bar as the connecting body in the junction box body by opening the opening.

請求項記載の発明によれば、コネクタブロックのコネクタハウジングに接続体であるバスバーの端子部を収容してコネクタを構成させ、コネクタに他の回路としてのワイヤハーネスのコネクタを嵌合接続させることで、単に接続体を覆う中間カバー以上の役割を発揮させることができ、そのコネクタブロックに覆う部に対するガイド作用を付与したことで、全体構造が簡素化・低コスト化される。 According to the third aspect of the present invention, the connector of the bus bar as the connecting body is accommodated in the connector housing of the connector block to form the connector, and the connector of the wire harness as another circuit is fitted and connected to the connector. Thus, the role more than the intermediate cover that simply covers the connection body can be exhibited, and the guide structure for the portion covering the connector block is provided, thereby simplifying and reducing the overall structure.

図1は本発明に係る電気接続箱の一実施形態を示すものである。   FIG. 1 shows an embodiment of an electrical junction box according to the present invention.

この電気接続箱1は、正面側に開口部2を有する合成樹脂製のメインカバー(接続箱本体)3と、メインカバー3内に下方から装着されるバスバー組立体(接続体)4と、バスバー組立体4の下方からメインカバー3内に装着される合成樹脂製の中間カバー(コネクタブロック)5と、中間カバー5の下方からメインカバー3に装着され、メインカバー3の開口部2に対する板状の覆い壁(覆い部)を有する合成樹脂製のロアカバー(カバー)7と、メインカバー3の上側に装着される合成樹脂製のアッパカバー(図示せず)とを備えるものである。   This electrical connection box 1 includes a synthetic resin main cover (connection box body) 3 having an opening 2 on the front side, a bus bar assembly (connection body) 4 mounted in the main cover 3 from below, and a bus bar. A synthetic resin intermediate cover (connector block) 5 mounted in the main cover 3 from below the assembly 4, and a plate-like shape with respect to the opening 2 of the main cover 3 mounted on the main cover 3 from below the intermediate cover 5. A synthetic resin lower cover (cover) 7 having a cover wall (cover portion) and a synthetic resin upper cover (not shown) mounted on the upper side of the main cover 3 are provided.

メインカバー3は上部前側に複数のヒュージブルリンク装着部8とヒューズ装着部9とをそれぞれ並列に有すると共に、両側内部にリレー装着部10、右端内側にコネクタハウジング11をそれぞれ有し、前側の壁部12の長手方向中央に比較的幅広の矩形状の開口部2を有している。   The main cover 3 has a plurality of fusible link mounting portions 8 and a fuse mounting portion 9 in parallel on the upper front side, a relay mounting portion 10 on both sides, and a connector housing 11 on the right end side, respectively. A relatively wide rectangular opening 2 is provided at the center in the longitudinal direction of the portion 12.

図2に示す如く、開口部2の内側周縁には下半部側を除いてロアカバー7(図1)の覆い壁6に対するガイド部13が設けられている(ガイド部については後述する)。   As shown in FIG. 2, a guide portion 13 for the cover wall 6 of the lower cover 7 (FIG. 1) is provided on the inner periphery of the opening 2 except for the lower half side (the guide portion will be described later).

図1で開口部2の内側にはナット14を装着する垂直なガイド壁15が設けられており、メインカバー3の下部開口からガイド壁15に沿ってバスバー組立体4が装着され、開口部2内にバスバー組立体4の中央の可溶部(ヒューズ部)16が位置し、可溶部16が過電流で溶断した際に、開口部2から後付けヒューズ(被接続体)17をバスバー組立体4に装着可能となっている。   In FIG. 1, a vertical guide wall 15 for mounting the nut 14 is provided inside the opening 2, and the bus bar assembly 4 is mounted along the guide wall 15 from the lower opening of the main cover 3. When the fusible part (fuse part) 16 at the center of the bus bar assembly 4 is located inside, and the fusible part 16 is blown by overcurrent, the post fuse (connected body) 17 is inserted from the opening 2 into the bus bar assembly. 4 can be mounted.

バスバー組立体4は前側の電源供給バスバー18と後側の絶縁配列バスバー19を絶縁樹脂部20のボス部21を介して対向して一体に固定したものである。板状の電源供給バスバー4の中央の切欠部22内に可溶部16が一体に形成されている。絶縁配列バスバー19は複数本の帯状のバスバー本体とそれを覆う絶縁樹脂部20とで構成されている。   In the bus bar assembly 4, a front power supply bus bar 18 and a rear insulating bus bar 19 are fixed integrally with each other through a boss portion 21 of an insulating resin portion 20. A fusible portion 16 is integrally formed in a cutout portion 22 in the center of the plate-like power supply bus bar 4. The insulating array bus bar 19 includes a plurality of strip-shaped bus bar bodies and an insulating resin portion 20 covering the bus bar body.

各バスバー18,19の右半側には、ヒュージブルリンク装着部8内に挿入されるタブ端子23、左半側には、ヒューズ装着部9に挿入される挟持端子24がそれぞれ対向して設けられ、前側のバスバー4の右端には、コネクタハウジング11内に挿入される幅広のタブ端子25が設けられている。コネクタハウジング11とタブ端子25でコネクタが構成される。例えばコネクタ(符号11で代用)又はバスバーの18の中央の孔部72(図4)に電源線(図示せず)が接続される。絶縁配列バスバー19は下向きの各種タブ端子26〜28を複数並列に有している。   A tab terminal 23 to be inserted into the fusible link mounting portion 8 is provided on the right half side of each bus bar 18, 19, and a holding terminal 24 to be inserted into the fuse mounting portion 9 is provided on the left half side. A wide tab terminal 25 to be inserted into the connector housing 11 is provided at the right end of the front bus bar 4. The connector housing 11 and the tab terminal 25 constitute a connector. For example, a power supply line (not shown) is connected to a central hole 72 (FIG. 4) of the connector (represented by reference numeral 11) or the bus bar 18. The insulated bus bar 19 has a plurality of downward-facing various tab terminals 26 to 28 in parallel.

中間カバー(コネクタブロック)5は水平な基壁29に複数のコネクタハウジング30〜32を下向きに一体に設けたものであり、各コネクタハウジング30〜32の基壁には、後側のバスバー19の下向きの各タブ端子26〜28に対する挿入孔33が設けられ、各コネクタハウジング30〜32と各タブ端子26〜28とで各コネクタが構成される。各コネクタにはワイヤハーネス(図示しない他の回路)のコネクタが嵌合接続され、ワイヤハーネスはロアカバー7の後壁側の導出口34から外部に導出される。前側のバスバー18の下端は中間カバー5の基壁29で当接支持される。 The intermediate cover (connector block) 5 has a plurality of connector housings 30 to 32 integrally provided downward on a horizontal base wall 29, and the base walls of the connector housings 30 to 32 are provided with a rear bus bar 19. An insertion hole 33 is provided for each of the tab terminals 26 to 28 facing downward, and each connector housing 30 to 32 and each tab terminal 26 to 28 constitute each connector. A connector of a wire harness (other circuit (not shown)) is fitted and connected to each connector, and the wire harness is led out from a lead-out port 34 on the rear wall side of the lower cover 7. The lower end of the front bus bar 18 is abutted and supported by the base wall 29 of the intermediate cover 5.

中間カバー5の基壁29の前端には、ロアカバー7の覆い壁6に対する左右一対のガイド部35が設けられ、ガイド部35はメインカバー3の開口部2の下半部内側に位置し、メインカバー3側のガイド部13(図2)と一体化して長形のガイド部を構成する(ガイド部については後述する)。   A pair of left and right guide portions 35 for the cover wall 6 of the lower cover 7 is provided at the front end of the base wall 29 of the intermediate cover 5, and the guide portions 35 are located inside the lower half of the opening 2 of the main cover 3. A long guide portion is formed integrally with the guide portion 13 (FIG. 2) on the cover 3 side (the guide portion will be described later).

ロアカバー7は長方形の底壁36と、その周りに立設された周壁(前後左右の壁部)37と、前側の壁部38から上向きに同一平面で突出された垂直な板状の覆い壁6とを備えている。周壁37の外面にはメインカバー3の下端外側の係止部(枠部39内の係止突起)に対する係合部(突起に対する凹部40を有する突出片)が上向きに突設されている。   The lower cover 7 has a rectangular bottom wall 36, a peripheral wall (front / rear / left / right wall portions) 37 erected around the rectangular bottom wall 36, and a vertical plate-like covering wall 6 projecting upward from the front wall portion 38 in the same plane. And. On the outer surface of the peripheral wall 37, an engaging portion (a protruding piece having a recess 40 with respect to the protrusion) with respect to an engaging portion (an engaging protrusion in the frame portion 39) outside the lower end of the main cover 3 protrudes upward.

覆い壁6は矩形平板状に形成され、外面側の周縁に沿ってリブ41が周設され、リブ41と覆い壁6の周端との間に、メインカバー3の開口部2の内縁に対する幅狭の摺接部42が構成され、リブ41は開口部2の周端に対する位置決め部として作用する。リブ41はロアカバー7の周壁37の上縁に沿って延長され、この周縁のリブ43はメインカバー3の下端に対するストッパとして作用する。   The covering wall 6 is formed in a rectangular flat plate shape, and ribs 41 are provided around the outer peripheral edge, and the width of the opening 2 of the main cover 3 with respect to the inner edge between the rib 41 and the peripheral edge of the covering wall 6. A narrow sliding contact portion 42 is formed, and the rib 41 acts as a positioning portion for the peripheral end of the opening 2. The rib 41 extends along the upper edge of the peripheral wall 37 of the lower cover 7, and the peripheral rib 43 functions as a stopper for the lower end of the main cover 3.

図3はメインカバー3を示す下方視平面図であり、メインカバー3の前後方向中央に垂直な隔壁44が設けられ、隔壁44の前側にバスバー収容空間45が形成され、隔壁44の左右両側で短い隔壁46が直交して前壁に続き、左側の短い隔壁46にはバスバー挿入スリット47が設けられ、各隔壁44,46とカバー前壁12との間に中間カバー5(図1)に対する収容空間48が形成されている。隔壁44の後側の空間49にはリレー50(図1)がホルダ51と共に収容される。   FIG. 3 is a plan view showing the main cover 3 as viewed from below. A partition wall 44 perpendicular to the center of the main cover 3 in the front-rear direction is provided. A bus bar housing space 45 is formed on the front side of the partition wall 44. A short partition wall 46 is orthogonal to the front wall, and the left short partition wall 46 is provided with a bus bar insertion slit 47, which accommodates the intermediate cover 5 (FIG. 1) between the partition walls 44, 46 and the cover front wall 12. A space 48 is formed. A relay 50 (FIG. 1) is accommodated together with the holder 51 in a space 49 on the rear side of the partition wall 44.

中間カバー5は収容空間48の下部にほぼ隙間なく嵌合し、係止突起52(図4)と係合凹部53(図3)といった係止手段でメインカバー3の内側下部に係止される。バスバー組立体4(図1)は収容空間45内で中間カバー5の上側に位置する。中間カバー5はバスバー組立体4をメインカバー3内でガタ付きなく支持すると共に、バスバー収容空間45を下側から閉止する。収容空間45の上側にはヒュージブルリンク装着部8やヒューズ装着部9やコネクタハウジング11が位置する。   The intermediate cover 5 is fitted to the lower portion of the accommodation space 48 with almost no gap, and is locked to the inner lower portion of the main cover 3 by locking means such as a locking projection 52 (FIG. 4) and an engagement recess 53 (FIG. 3). . The bus bar assembly 4 (FIG. 1) is located above the intermediate cover 5 in the accommodation space 45. The intermediate cover 5 supports the bus bar assembly 4 in the main cover 3 without backlash, and closes the bus bar housing space 45 from below. The fusible link mounting portion 8, the fuse mounting portion 9, and the connector housing 11 are located above the accommodation space 45.

収容空間48の前後方向中央にはバスバー組立体4(図1)に対するガイド壁15がメインカバー3の上壁から垂下形成され、ガイド壁15は前後の両バスバー18,19間の中央の空間(隙間)54(図4)内に挿入される。   A guide wall 15 for the bus bar assembly 4 (FIG. 1) is suspended from the upper wall of the main cover 3 at the center in the front-rear direction of the accommodating space 48. The guide wall 15 is a central space between the front and rear bus bars 18, 19 ( The gap is inserted into the gap 54 (FIG. 4).

図2,図3の如く、メインカバー3の前壁12の開口部2には、前壁12とほぼ同一平面で続く周縁部55と、周縁部55の後方で対向して前壁12の内面12aから断面略L字状に突出形成されたガイド突条13とが設けられ、周縁部55とガイド突条13との間にガイド溝56が構成されている。ガイド突条13はメインカバー3の前壁12の内面12aに直交して垂直に延びる直線的なリブ状の支持部13a(図2)と、支持部13aと直交して内面12aと平行に(対向して)位置する案内部13bとで構成されている。周縁部55とガイド突条13とで覆い壁6(図1)に対するガイド部が構成される。   As shown in FIGS. 2 and 3, the opening 2 of the front wall 12 of the main cover 3 has a peripheral edge 55 continuing substantially in the same plane as the front wall 12, and an inner surface of the front wall 12 facing behind the peripheral edge 55. A guide ridge 13 is formed so as to protrude from the portion 12 a in a substantially L-shaped cross section, and a guide groove 56 is formed between the peripheral edge portion 55 and the guide ridge 13. The guide ridge 13 is a linear rib-shaped support portion 13a (FIG. 2) extending perpendicularly to the inner surface 12a of the front wall 12 of the main cover 3 and parallel to the inner surface 12a (see FIG. 2). It is comprised with the guide part 13b located in opposition. The peripheral edge portion 55 and the guide protrusion 13 constitute a guide portion for the covering wall 6 (FIG. 1).

前側の周縁部55は図1の如く前壁12の下端まで延長され、下端側でテーパ状に切欠されて覆い壁6に対する入口の傾斜ガイド57(図2)を構成している。後側のガイド突条13は開口部2の高さ方向中間部から上側に、すなわち下半部を除く上半部に形成され、下半部には空間が構成されているのみである。この下半部の高さは中間カバー5(図4)のガイド部35の長さに等しい。メインカバー3のガイド部13は中間カバーのガイド部35よりも少し長く形成されている。   The front peripheral edge 55 is extended to the lower end of the front wall 12 as shown in FIG. 1, and is tapered at the lower end side to constitute an inclined guide 57 (FIG. 2) for the entrance to the cover wall 6. The rear guide protrusion 13 is formed on the upper side of the opening 2 in the height direction, that is, in the upper half excluding the lower half, and only the space is formed in the lower half. The height of the lower half is equal to the length of the guide portion 35 of the intermediate cover 5 (FIG. 4). The guide portion 13 of the main cover 3 is formed slightly longer than the guide portion 35 of the intermediate cover.

図2,図3で、メインカバー3の各ガイド突条13の外側において前壁12の内面12aに中間カバー案内用の断面略T字状の垂直方向のガイドレール(ガイド部)58が突出して設けられている。   2 and 3, a vertical guide rail (guide portion) 58 having a substantially T-shaped cross section for guiding the intermediate cover projects from the inner surface 12a of the front wall 12 on the outer side of each guide protrusion 13 of the main cover 3. Is provided.

ガイドレール58は前壁内面12aに直交する垂直なリブ状の支持部58aと、支持部58aに直交して内面12aと平行に(対向して)位置する垂直な帯板状の案内部58bとで構成され、内側のガイド突条13から僅かな水平距離をおいて且つガイド突条13よりも下側に長く延長され、案内部58bはガイド突条13の案内部13bとほぼ同一面ないし若干メインカバー内側寄りに位置している。ガイドレール58は覆い壁6(図1)ではなく中間カバー5をメインカバー3内に案内するためのものである。メインカバー3の隔壁44(図3)の内面にも同形状のガイドレールが設けられている。   The guide rail 58 includes a vertical rib-shaped support portion 58a orthogonal to the front wall inner surface 12a, and a vertical strip-shaped guide portion 58b orthogonal to the support portion 58a and positioned parallel (opposite) to the inner surface 12a. The guide protrusion 58b is extended from the inner guide protrusion 13 at a slight horizontal distance to the lower side of the guide protrusion 13, and the guide portion 58b is substantially flush with or slightly the same as the guide portion 13b of the guide protrusion 13. Located on the inside of the main cover. The guide rail 58 is for guiding not the cover wall 6 (FIG. 1) but the intermediate cover 5 into the main cover 3. A guide rail having the same shape is also provided on the inner surface of the partition wall 44 (FIG. 3) of the main cover 3.

図4に中間カバー(コネクタブロック)5とバスバー組立体4を示す如く、中間カバー5の水平な基壁29の前端に上下のリブ60が垂直に突出形成されて、基壁29の前端面(前壁)61が上下方向に幅広に構成され、前壁61と一体に、メインカバー3のガイドレール58(図2,図3)に対する左右一対のスライド係合部62が垂直に突出形成されている。   As shown in FIG. 4, the intermediate cover (connector block) 5 and the bus bar assembly 4 are formed so that upper and lower ribs 60 project vertically from the front end of the horizontal base wall 29 of the intermediate cover 5. The front wall 61 is configured to be wide in the vertical direction, and a pair of left and right slide engaging portions 62 with respect to the guide rail 58 (FIGS. 2 and 3) of the main cover 3 are formed so as to protrude vertically. Yes.

スライド係合部62は左右一対の対向する突条63と、各突条63に直交する各側壁64と、両側壁64を連結する後壁65とで略凹字状に形成され、一対の突条63の間に幅狭のスリット部66が構成され、一対の突条63と側壁64と後壁65とで囲まれた内側の矩形状の溝(空間)67にガイドレール58(図2,図3)の案内部58bがスライド係合し、スリット部66内にガイドレール58の支持部58aが係合する。ガイドレール58の長さは少なくともスライド係合部62の長さと同じ又はそれ以上であればよい。   The slide engaging portion 62 is formed in a substantially concave shape by a pair of left and right protruding ridges 63, each side wall 64 orthogonal to each ridge 63, and a rear wall 65 connecting both side walls 64. A narrow slit portion 66 is formed between the strips 63, and a guide rail 58 (FIG. 2) is formed in an inner rectangular groove (space) 67 surrounded by the pair of protrusions 63, the side wall 64, and the rear wall 65. The guide portion 58b of FIG. 3 is slidably engaged, and the support portion 58a of the guide rail 58 is engaged in the slit portion 66. The length of the guide rail 58 may be at least equal to or longer than the length of the slide engaging portion 62.

中間カバー5の後壁にも同形状のスライド係合部68が一つ設けられており、計三つのスライド係合部62,68で中間カバー5がメインカバー3内に安定してスムーズにスライド係合される。   One slide engaging portion 68 having the same shape is also provided on the rear wall of the intermediate cover 5, and the intermediate cover 5 slides stably and smoothly into the main cover 3 by a total of three slide engaging portions 62 and 68. Engaged.

前壁61側の各スライド係合部62の内方の側壁64に直交して垂直方向のガイド壁部69が突出形成され、ガイド壁部69の下半部は中間カバー5の前壁61に同一平面で続いている。   A vertical guide wall 69 protrudes perpendicularly to the inner side wall 64 of each slide engagement portion 62 on the front wall 61 side, and the lower half of the guide wall 69 is formed on the front wall 61 of the intermediate cover 5. It continues on the same plane.

中間カバー5をメインカバー3内に装着する際に、スライド係合部62がガイドレール58(図2,図3)にスライド係合し、ガイド壁部69がメインカバー3のガイド突条13の案内部13bの下側で案内部13bと同一平面に位置し、スライド係合部62の内方の側壁64の外面がメインカバー3のガイド突条13の支持部13aの下側で支持部13aと同一平面に位置し、中間カバー5のガイド壁部69はメインカバー3の開口2の周縁部55と対向し、周縁部55との間にガイド溝を構成する(図4の符号69の部分にガイド溝が構成される)。中間カバー5のガイド壁部69と、ガイド壁部69と同一面で続く前壁61と、これらに直交する側壁64とで覆い壁6(図1)に対するガイド部35が構成される。   When the intermediate cover 5 is mounted in the main cover 3, the slide engagement portion 62 is slidably engaged with the guide rail 58 (FIGS. 2 and 3), and the guide wall portion 69 is formed on the guide protrusion 13 of the main cover 3. The guide portion 13b is positioned on the same plane as the guide portion 13b, and the outer surface of the inner side wall 64 of the slide engagement portion 62 is below the support portion 13a of the guide protrusion 13 of the main cover 3. The guide wall portion 69 of the intermediate cover 5 faces the peripheral edge portion 55 of the opening 2 of the main cover 3 and forms a guide groove with the peripheral edge portion 55 (the portion denoted by reference numeral 69 in FIG. 4). Guide groove is formed on the top). The guide wall portion 69 of the intermediate cover 5, the front wall 61 continuing on the same plane as the guide wall portion 69, and the side wall 64 orthogonal to these constitute a guide portion 35 for the covering wall 6 (FIG. 1).

メインカバー3のガイド部13がロアカバー7の覆い壁6の上半部をスライド係合(案内)させ、中間カバー5のガイド部35が覆い壁6の下半部をスライド係合(案内)させる。このようにガイド部13,35を上下で二分割とし、上下のガイド部13,35を互いに高さ方向に接合させることで、長いガイド部が確実に構成され、ガイド部13,35、特にメインカバー側のガイド部13の樹脂成型が容易に且つ正確に行われ、樹脂成型金型も小型化・低コスト化される。   The guide portion 13 of the main cover 3 slide-engages (guides) the upper half of the cover wall 6 of the lower cover 7, and the guide portion 35 of the intermediate cover 5 slide-engages (guides) the lower half of the cover wall 6. . In this way, the guide portions 13 and 35 are divided into upper and lower parts, and the upper and lower guide portions 13 and 35 are joined to each other in the height direction, so that a long guide portion is reliably configured. Resin molding of the guide portion 13 on the cover side is easily and accurately performed, and the resin molding die is also reduced in size and cost.

図4でバスバー組立体4の各バスバー18,19の下端は中間カバー5の上面に当接支持され、後側のバスバー19の下向きの各端子26〜28が中間カバー5の各コネクタハウジング30〜32内に挿入されて各コネクタを構成する。各バスバー18,19の上向きの端子23〜25はメインカバー3(図1)のコネクタハウジング11やヒュージブルリンク装着部8やヒューズ装着部9内に挿入され、各バスバー18,19の上端がメインカバー3の上壁内面に当接する。タブ端子23にはヒュージブルリンク70(図1)が接続され、挟持端子24にはヒューズ71(図1)が接続される。   In FIG. 4, the lower ends of the bus bars 18 and 19 of the bus bar assembly 4 are in contact with and supported by the upper surface of the intermediate cover 5, and the downward terminals 26 to 28 of the rear bus bar 19 are connected to the connector housings 30 to 30 of the intermediate cover 5. Each connector is configured by being inserted into the connector 32. The upward terminals 23 to 25 of the bus bars 18 and 19 are inserted into the connector housing 11, the fusible link mounting portion 8 and the fuse mounting portion 9 of the main cover 3 (FIG. 1), and the upper ends of the bus bars 18 and 19 are main. It contacts the inner surface of the upper wall of the cover 3. A fusible link 70 (FIG. 1) is connected to the tab terminal 23, and a fuse 71 (FIG. 1) is connected to the holding terminal 24.

中間カバー5の各コネクタは下向きに構成され、中間カバー5の下方から図示しないワイヤハーネスのコネクタが中間カバー5の各コネクタに接続され、ワイヤハーネスはロアカバー7内に収容されつつ導出口34(図1)から外部に導出されて図示しない車両の電装品や補機等に接続される。   Each connector of the intermediate cover 5 is configured to face downward, and a wire harness connector (not shown) is connected to each connector of the intermediate cover 5 from below the intermediate cover 5, and the wire harness is housed in the lower cover 7 while being led out (see FIG. 1) is led out to the outside and connected to a vehicle electrical component, auxiliary equipment, etc. (not shown).

前側のバスバー18に過電流が通電された際に可溶部16が溶断して回路が遮断されるが、バスバー組立体4や中間カバー5はそのままメインカバー3内に残して、ロアカバー7のみをメインカバー3から外して、後付けヒューズ17をバスバー18の中央の孔部72(図4)にボルト73(図1)とナット14で締付接続する。その後、ロアカバー7を再装着して覆い壁6で開口部2を覆って内部のバスバー18,19や後付けヒューズ17等を外部の雨水や塵等から保護する。   When an overcurrent is applied to the front bus bar 18, the fusible part 16 is melted and the circuit is cut off. However, the bus bar assembly 4 and the intermediate cover 5 are left in the main cover 3 and only the lower cover 7 is left. After removing from the main cover 3, the retrofitted fuse 17 is tightened and connected to the central hole 72 (FIG. 4) of the bus bar 18 with the bolt 73 (FIG. 1) and the nut 14. Thereafter, the lower cover 7 is remounted and the opening 2 is covered with the cover wall 6 to protect the internal bus bars 18 and 19 and the retrofitted fuse 17 from external rainwater and dust.

なお、上記実施形態においては、メインカバー3の開口部2を通じてバスバー18への後付けヒューズ17の接続を行わせたが、従来例にも示した如く、開口部2は後付けヒューズ17に限らず、例えばバスバーに電源供給用の端子付き電線(図示せず)をボルトとナットでねじ締め接続させる場合や、それ以外にバスバーに他の部品を接続させる場合等においても適用可能なものである。   In the above embodiment, the post fuse 17 is connected to the bus bar 18 through the opening 2 of the main cover 3. However, as shown in the conventional example, the opening 2 is not limited to the post fuse 17, For example, the present invention can also be applied to a case where a power supply terminal-attached electric wire (not shown) is screwed to a bus bar with bolts and nuts, or other parts are connected to the bus bar.

また、上記実施形態においては、ロアカバー7に覆い壁6を設けたが、例えば図1の電気接続箱1を反転して使用する場合等において、アッパカバーに覆い壁6を設けることも可能である。また、上記実施形態におけるメインカバー3のガイド部13や中間カバー5のガイド部35の形状や、中間カバーの5スライド係合部62やメインカバー3のガイドレール58の形状等は適宜変更可能である。   In the above embodiment, the cover wall 6 is provided on the lower cover 7. However, for example, when the electric junction box 1 shown in FIG. 1 is inverted and used, the cover wall 6 can be provided on the upper cover. . In addition, the shape of the guide portion 13 of the main cover 3 and the guide portion 35 of the intermediate cover 5, the shape of the 5-slide engaging portion 62 of the intermediate cover, the guide rail 58 of the main cover 3 and the like in the above embodiment can be changed as appropriate. is there.

本発明に係る電気接続箱の一実施形態を示す分解斜視図である。It is a disassembled perspective view which shows one Embodiment of the electrical-connection box based on this invention. 電気接続箱のメインカバーの内面側を示す要部斜視図である。It is a principal part perspective view which shows the inner surface side of the main cover of an electrical junction box. メインカバーを示す下方視平面図である。It is a bottom view top view which shows a main cover. メインカバー内に装着されるバスバー組立体と中間カバーを示す分解斜視図である。It is a disassembled perspective view which shows the bus-bar assembly and intermediate | middle cover with which it mounts in a main cover. 従来の電気接続箱の一実施形態を示す分解斜視図である。It is a disassembled perspective view which shows one Embodiment of the conventional electrical junction box.

符号の説明Explanation of symbols

1 電気接続箱
2 開口部
3 メインカバー(接続箱本体)
4 バスバー組立体(接続体)
5 中間カバー(コネクタブロック)
6 覆い壁(覆い部)
7 ロアカバー(カバー)
13,35 ガイド部
17 後付けヒューズ(被接続体)
58 ガイドレール(ガイド部)
1 Electrical junction box 2 Opening 3 Main cover (junction box body)
4 Busbar assembly (connector)
5 Intermediate cover (connector block)
6 Covering wall (covering part)
7 Lower cover (cover)
13, 35 Guide part 17 Retrofit fuse (connected body)
58 Guide rail (guide section)

Claims (3)

垂直な外壁に下端から切欠形成された開口部を有する接続箱本体と、水平な基壁の下側にコネクタハウジングを有して該接続箱本体の下部開口内に装着されるコネクタブロックと、該基壁の上側に配置されて下向きの端子部を該基壁の孔部から該コネクタハウジング内に突出させるバスバー組立体と、該開口部を塞ぐ板状の覆い部を有して該コネクタブロックの下側から該接続箱本体に装着されるカバーとを備える電気接続箱であって、
前記開口部の周縁の上半側に前記覆い部をスライド係合させるガイド部が設けられ、該ガイド部の外側に隣接して該周縁の少なくとも下半側に左右一対のガイドレールが設けられ、前記コネクタブロックの垂直な外壁に、該ガイドレールを係合させる左右一対のスライド係合部が前記基壁よりも高く突設され、該外壁に該スライド係合部に沿うガイド壁部が上向きに延設され、該スライド係合部と該ガイド壁部と該ガイド部の下側における該周縁の下半側部分とで囲まれて、該覆い部をスライド係合させるガイド溝が構成されることを特徴とする電気接続箱。
A connection box main body having an opening formed in a vertical outer wall with a notch from the lower end; a connector block having a connector housing under the horizontal base wall and mounted in a lower opening of the connection box main body; A bus bar assembly which is disposed on the upper side of the base wall and projects a downward terminal portion from the hole of the base wall into the connector housing; and a plate-like cover portion which closes the opening. An electrical junction box comprising a cover attached to the junction box body from below,
A guide part for slidingly engaging the cover part is provided on the upper half side of the periphery of the opening, and a pair of left and right guide rails is provided on at least the lower half side of the periphery adjacent to the outside of the guide part, A pair of left and right slide engaging portions for engaging the guide rail is projected higher than the base wall on the vertical outer wall of the connector block, and the guide wall portion along the slide engaging portion faces upward on the outer wall. A guide groove that extends and is surrounded by the slide engagement portion, the guide wall portion, and the lower half side portion of the periphery on the lower side of the guide portion is configured to slide-engage the cover portion. An electrical junction box characterized by.
前記開口部を通じて前記接続箱本体内の前記バスバー組立体に被接続体が電気的に接続されることを特徴とする請求項記載の電気接続箱。 Electrical connection box according to claim 1, wherein the object to be connected is characterized in that it is electrically connected to the bus bar assembly in the junction box body through the opening. 前記コネクタブロックの前記基壁が前記バスバー組立体を支持し、前記カバーとの間で前記コネクタハウジングと前記端子部とで成るコネクタがワイヤハーネスのコネクタに接続されることを特徴とする請求項1又は2記載の電気接続箱。 Claims the base wall of the connector block to support the bus bar assembly, the connector comprising in said terminal portion and the connector housing between a front SL cover is characterized in that it is connected to the connector of the wire harness The electrical junction box according to 1 or 2 .
JP2003424449A 2003-12-22 2003-12-22 Electrical junction box Expired - Fee Related JP4319901B2 (en)

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JP2007181339A (en) * 2005-12-28 2007-07-12 Yazaki Corp Electrical connection box
JP4588655B2 (en) * 2006-03-16 2010-12-01 矢崎総業株式会社 Electrical junction box
JP4582716B2 (en) * 2006-04-14 2010-11-17 株式会社オートネットワーク技術研究所 Electrical junction box
KR100955057B1 (en) 2008-04-23 2010-04-28 한국단자공업 주식회사 Box for vehicle
JP6546421B2 (en) * 2015-03-24 2019-07-17 矢崎総業株式会社 Electrical connection box and wire harness

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