JP2008159311A - Branch connector - Google Patents

Branch connector Download PDF

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JP2008159311A
JP2008159311A JP2006344554A JP2006344554A JP2008159311A JP 2008159311 A JP2008159311 A JP 2008159311A JP 2006344554 A JP2006344554 A JP 2006344554A JP 2006344554 A JP2006344554 A JP 2006344554A JP 2008159311 A JP2008159311 A JP 2008159311A
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filter material
connector
connector housing
branch
terminal
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Eiji Yanada
英二 梁田
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To reduce the number of filter materials for improving distortion of a transmission waveform, and to facilitate work to insert the filtering material into a connector housing. <P>SOLUTION: This branch connector is provided at a position where a branch line is branched and connected from a main line composing a communication circuit. A long joint part, a bus bar having a plurality of wire connecting terminal parts protruded with spaces left in the length direction of the joint part, and a filter material made of a plate-like magnetic body in which a plurality of terminal holes for the wire connecting terminal parts to pass through are bored are housed in one side part in a connector housing. While a guide protrusion is provided on the inner surface of the connector housing, a part to be guided which comprises a recessed part having a shape along the guide protrusion or a through hole is provided in the filter material, and the filter material is inserted from the engagement part of a counterpart connector on the other side of the connector housing so that the part to be guided goes along the guide protrusion. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、分岐コネクタに関し、詳しくは、車載ＬＡＮ等の通信ネットワークの幹線から支線を分岐する分岐接続部に生じる伝送波形歪みを緩和する機能を備えた分岐コネクタに関するものである。   The present invention relates to a branch connector, and more particularly to a branch connector having a function of alleviating transmission waveform distortion that occurs in a branch connection portion that branches a branch line from a trunk line of a communication network such as an in-vehicle LAN.

車載ネットワーク等の通信ネットワークにおいて、１つの通信機器から別の通信機器へ信号を伝送する際に、電気的または磁気的ノイズによって伝送波形に歪みが発生して通信が正常に行われないという問題がある。この波形歪みは主としてインピーダンスの不整合に起因する信号の反射によっても発生し、通信線の分岐点や通信機器内に収容した基板との接続点においてはインピーダンス不整合が発生することは避けられなかった。そのため、従来より分岐点や通信機器との接続点での波形歪みを改善するための種々の技術が提案されている。   In a communication network such as an in-vehicle network, when transmitting a signal from one communication device to another communication device, there is a problem that the transmission waveform is distorted due to electrical or magnetic noise and communication is not normally performed. is there. This waveform distortion occurs mainly due to signal reflection caused by impedance mismatch, and it is inevitable that impedance mismatch will occur at the branch point of the communication line and the connection point with the board accommodated in the communication device. It was. For this reason, various techniques for improving waveform distortion at a branch point or a connection point with a communication device have been proposed.

例えば、特開平６−７６８８６号公報（特許文献１）では、図８に示すように、コネクタハウジング１内に収容した端子２を円筒状のフェライトコア３に通すことにより伝送波形の歪みを改善している。   For example, in Japanese Patent Laid-Open No. 6-76886 (Patent Document 1), as shown in FIG. 8, the distortion of the transmission waveform is improved by passing the terminal 2 accommodated in the connector housing 1 through the cylindrical ferrite core 3. ing.

しかしながら、特許文献１では、各端子２をぞれぞれ別体のフェライトコア３に貫通させているため、部品点数が多く、かつ、生産性が良くない問題がある。
そこで、１つのフェライトコアに複数の貫通孔を設け、該貫通孔にそれぞれ端子を貫通させることにより、フェライトコアの個数を低減することができる。
しかし、このように複数の端子を一括挿入するフェライトコアでは、コネクタハウジング内に挿入する際に、フェライトコアが傾いて、コネクタハウジングの所定位置まで挿入される前に詰まってしまい、この場合にもコネクタの組立作業性が良くない問題がある。 However, in Patent Document 1, since each terminal 2 is passed through a separate ferrite core 3, there is a problem that the number of parts is large and productivity is not good.
Therefore, the number of ferrite cores can be reduced by providing a plurality of through holes in one ferrite core and passing the terminals through the through holes, respectively.
However, in such a ferrite core in which a plurality of terminals are inserted together, the ferrite core is tilted when inserted into the connector housing and clogs before being inserted to a predetermined position of the connector housing. There is a problem that the assembly workability of the connector is not good.

特開平６−７６８８６号公報JP-A-6-76886

本発明は前記問題に鑑みてなされたものであり、伝送波形の歪みを改善するためのフィルタ材の個数を低減すると共に、該フィルタ材がコネクタハウジング内において傾かずに正規位置に取り付けられる構成とすることを課題としている。   The present invention has been made in view of the above problems, and has a configuration in which the number of filter materials for improving distortion of a transmission waveform is reduced and the filter material is attached to a normal position without being inclined in the connector housing. The challenge is to do.

前記課題を解決するため、本発明は、通信回路を構成する幹線から支線が分岐接続する位置に設ける分岐コネクタであって、
コネクタハウジング内の一側部に、
長尺なジョイント部と、該ジョイント部の長さ方向に間隔をあけて突出させた複数の電線接続用端子部を有するバスバーと、
前記電線接続用端子部を貫通させる端子孔を複数穿設した板状の磁性体からなるフィルタ材が収容され、
前記コネクタハウジングの内面にガイド突起が設けられている一方、前記フィルタ材に前記ガイド突起に沿う形状の凹部あるいは貫通孔からなる被ガイド部が設けられ、
前記フィルタ材は、コネクタハウジングの他側の相手方コネクタの嵌合穴から前記被ガイド部を前記ガイド突起に沿って挿入されていることを特徴とする分岐コネクタを提供している。 In order to solve the above-mentioned problem, the present invention is a branch connector provided at a position where a branch line branches from a main line constituting a communication circuit,
On one side of the connector housing,
A bus bar having a long joint portion and a plurality of terminal portions for electric wire connection projecting at an interval in the length direction of the joint portion;
A filter material made of a plate-like magnetic body having a plurality of terminal holes penetrating the wire connecting terminal portion is accommodated,
While the guide projection is provided on the inner surface of the connector housing, the filter material is provided with a guided portion including a concave portion or a through hole having a shape along the guide projection,
The filter material provides a branch connector in which the guided portion is inserted along the guide protrusion from a fitting hole of a mating connector on the other side of the connector housing.

前記構成からなる本発明の分岐コネクタでは、分岐接続部を形成するバスバーの電線接続用端子部を磁性体からなるフィルタ材に通しているため、該フィルタ材が分岐接続部近傍に発生する磁界を吸収して熱に変え、分岐部のインピーダンス不整合から増大した高周波成分を低減することができ、分岐接続部で生じやすい伝送波形の歪みを改善することができる。
また、１つのフィルタ材に複数の端子孔を設けて複数の電線接続用端子部を貫通させているため、フィルタ材の個数を減らして部品点数を低減することができる。
さらに、１つのフィルタ材に複数の電線接続用端子部を一括で貫通させるようにして、フィルタ材を大型化しているが、フィルタ材の被ガイド部をコネクタハウジングのガイド突起に沿わせて、コネクタハウジング内で傾かないように規制しながらフィルタ材をコネクタハウジング内にスライド挿入する際に、フィルタ材を水平状態に保持しながら挿入でき、傾いて挿入できなくなるのが防止できるため組付作業性を高めることができると共に、フィルタ材を正規の水平状態としてコネクタハウジング内に位置させることができる。 In the branch connector of the present invention having the above-described configuration, since the wire connecting terminal portion of the bus bar forming the branch connection portion is passed through the filter material made of a magnetic material, a magnetic field generated in the vicinity of the branch connection portion by the filter material is generated. By absorbing and changing to heat, the high frequency component increased due to impedance mismatch at the branching portion can be reduced, and distortion of the transmission waveform that tends to occur at the branch connecting portion can be improved.
In addition, since a plurality of terminal holes are provided in one filter material and a plurality of wire connecting terminal portions are penetrated, the number of filter materials can be reduced and the number of parts can be reduced.
Furthermore, the filter material is enlarged by letting a plurality of wire connection terminal portions penetrate through one filter material at a time, but the guided portion of the filter material is aligned with the guide projection of the connector housing, When inserting the filter material into the connector housing while restricting it from tilting in the housing, it can be inserted while holding the filter material in a horizontal state, and it can be prevented from being tilted so that it cannot be inserted. The filter material can be positioned in the connector housing in a normal horizontal state.

前記コネクタハウジングのガイド突起およびフィルタ材の被ガイド部は、少なくとも前記フィルタ材のコネクタハウジングへの挿入方向と直交する方向のコネクタハウジング断面の中心を挟んだ対向位置に設けられていることが好ましい。
前記構成によれば、コネクタハウジングのガイド突起とフィルタ材の被ガイド部をそれぞれ対称位置に設けているため、コネクタハウジングへの挿入時におけるフィルタ材の傾きをより確実に防止することができる。
なお、前記コネクタハウジングのガイド突起およびフィルタ材の被ガイド部は、前記中心を挟んで対向位置に設けた１組に加えて複数組設けてもよく、また、前記中心を挟んで対向させたものに加えて任意の部位にガイド突起と被ガイド部を設けてもよい。 It is preferable that the guide projection of the connector housing and the guided portion of the filter material are provided at opposing positions sandwiching at least the center of the connector housing section in a direction orthogonal to the insertion direction of the filter material into the connector housing.
According to the said structure, since the guide protrusion of a connector housing and the to-be-guided part of a filter material are each provided in the symmetrical position, the inclination of the filter material at the time of insertion to a connector housing can be prevented more reliably.
The guide projection of the connector housing and the guided portion of the filter material may be provided in a plurality in addition to the one provided at the opposing position with the center interposed therebetween, and are opposed to each other with the center interposed therebetween. In addition to the above, a guide protrusion and a guided portion may be provided at an arbitrary site.

前記コネクタハウジングに前記電線接続端子部を貫通させると共に前記フィルタ材を位置決めするガイド筒が設けられ、該ガイド筒の外周面は円錐形状とされ、前記フィルタ材の端子孔の内周面が前記ガイド筒の外周面に当接され、該端子穴と電線接続端子部とがセンタリングされていることが好ましい。
前記構成によれば、フィルタ材の挿入を容易にするため電線接続端子部とフィルタ材の端子孔との間に大きなクリアランスを設定しておいても、コネクタハウジングに設けたガイド筒によりフィルタ材をコネクタハウジング内に挿入した時に、該フィルタ材の端子孔がガイド筒の外周面に沿って挿入され、前記電線接続用端子部とフィルタ材の端子孔とが自動的にセンタリングされる。よって、各電線接続用端子部とフィルタ材との間隔を一定として各電線接続用端子部に対するフィルタ性能を均一に保持できる。 The connector housing is provided with a guide cylinder for penetrating the wire connection terminal portion and positioning the filter material, the outer peripheral surface of the guide cylinder is conical, and the inner peripheral surface of the terminal hole of the filter material is the guide It is preferable that the terminal hole is in contact with the outer peripheral surface of the cylinder, and the terminal hole and the wire connecting terminal portion are centered.
According to the above configuration, even if a large clearance is set between the wire connection terminal portion and the filter material terminal hole in order to facilitate the insertion of the filter material, the filter material is removed by the guide tube provided in the connector housing. When inserted into the connector housing, the terminal hole of the filter material is inserted along the outer peripheral surface of the guide cylinder, and the terminal portion for wire connection and the terminal hole of the filter material are automatically centered. Therefore, the distance between each wire connecting terminal portion and the filter material can be kept constant, and the filter performance for each wire connecting terminal portion can be kept uniform.

前記フィルタ材は、フェライト、ケイ素鋼板あるいはパーマロイからなる。   The filter material is made of ferrite, silicon steel plate or permalloy.

前述したように、本発明によれば、１つのフィルタ材に複数の端子孔を設けて複数の電線接続用端子部を貫通させているため、フィルタ材の個数を減らして部品点数を低減することができる。
また、フィルタ材の被ガイド部をコネクタハウジングのガイド突起に沿わせて、コネクタハウジング内で傾かないように規制しながらフィルタ材をコネクタハウジング内にスライド挿入しているため、フィルタ材をコネクタハウジング内に挿入する際に傾いて挿入できなくなることを防止でき、分岐コネクタの組立作業を効率良く行うことができると共に、フィルタ材を正規位置に確実に配置することができる。 As described above, according to the present invention, since a plurality of terminal holes are provided in one filter material and a plurality of terminal portions for connecting electric wires are penetrated, the number of filter materials can be reduced and the number of parts can be reduced. Can do.
In addition, the filter material is slid into the connector housing while regulating the guided portion of the filter material along the guide projection of the connector housing so that it does not tilt inside the connector housing. In this case, it is possible to prevent the tilted connector from being tilted during insertion, to efficiently perform the assembling work of the branch connector, and to reliably arrange the filter material at the normal position.

本発明の実施形態を図面を参照して説明する。
図１乃至図５は、本発明の実施形態を示し、分岐コネクタ１０は、ＣＡＮ通信（差動伝送方式）を行う車載ＬＡＮにおいて、幹線から支線が分岐する分岐部を形成するものであり、図１に示すように、差動伝送線路を構成するツイストペア電線４０の端末に接続されたコネクタ３０（３０Ａ、３０Ｂ）と嵌合接続するものである。 Embodiments of the present invention will be described with reference to the drawings.
1 to 5 show an embodiment of the present invention, and a branch connector 10 forms a branch portion where a branch line branches from a trunk line in an in-vehicle LAN that performs CAN communication (differential transmission method). As shown in FIG. 1, the connector 30 is fitted and connected to a connector 30 (30A, 30B) connected to the end of the twisted pair electric wire 40 constituting the differential transmission line.

分岐コネクタ１０の樹脂成形品からなるコネクタハウジング１１は、図２及び図５に示すように、一側部に左右方向Ｘに延在するバスバー収容部１１ａを上下方向Ｙに２段で並設する一方、他側に相手方コネクタの嵌合部１１ｂを設けている。これらバスバー収容部１１ａとコネクタ嵌合部１１ｂは、コネクタ嵌合部１１ｂの底壁１１ｃで仕切っており、該底壁１１ｃに左右方向Ｘに間隔をあけてバスバー収容部１１ａとコネクタ嵌合部１１ｂに連通する端子孔１１ｄを穿設している。   As shown in FIGS. 2 and 5, the connector housing 11 made of a resin molded product of the branch connector 10 has bus bar accommodating portions 11 a extending in the left-right direction X on one side and arranged in two steps in the vertical direction Y. On the other hand, the mating part 11b of the mating connector is provided on the other side. The bus bar housing portion 11a and the connector fitting portion 11b are partitioned by a bottom wall 11c of the connector fitting portion 11b, and the bus bar housing portion 11a and the connector fitting portion 11b are spaced from each other in the left-right direction X by the bottom wall 11c. A terminal hole 11d communicating with is formed.

前記コネクタハウジング１１のコネクタ嵌合部１１ｂ内には、図３に示すように、後述するフィルタ材２１のコネクタ嵌合部１１ｂへの挿入方向Ｚと直交する断面の中心Ｏを挟んだ対向位置である隅部に一対のガイド突起１１ｅを設けている。該ガイド突起１１ｅは、外面を円弧面とした前記挿入方向Ｘに延在する柱状とし、コネクタ嵌合部１１ｂの開口端からコネクタ嵌合部１１ｂの所要位置まで延在させている。
また、コネクタ嵌合部１１ｂの底壁１１ｃに設けた端子孔１１ｄの周縁から円筒状のガイド筒１１ｆを突設しており、端子孔１１ｄとガイド筒１１ｆの中空部１１ｇとを連通させている。該ガイド筒１１ｆの外周面は先端に向けて縮径した円錐形状とし、底壁１１ｃから突出した基端の径を後述するフィルタ材２１に設けた端子孔２１ａの径より大としている。 In the connector fitting portion 11b of the connector housing 11, as shown in FIG. 3, at a position facing the center O of the cross section perpendicular to the insertion direction Z of the filter material 21 to be described later into the connector fitting portion 11b. A pair of guide protrusions 11e are provided at a corner. The guide protrusion 11e has a columnar shape extending in the insertion direction X with the outer surface being an arc surface, and extends from the opening end of the connector fitting portion 11b to a required position of the connector fitting portion 11b.
Further, a cylindrical guide tube 11f is projected from the peripheral edge of the terminal hole 11d provided in the bottom wall 11c of the connector fitting portion 11b, and the terminal hole 11d and the hollow portion 11g of the guide tube 11f communicate with each other. . The outer peripheral surface of the guide cylinder 11f has a conical shape with a diameter reduced toward the tip, and the diameter of the base end protruding from the bottom wall 11c is larger than the diameter of a terminal hole 21a provided in the filter material 21 described later.

前記コネクタハウジング１１のバスバー収容部１１ａに収容するバスバー２０は、長尺なジョイント部２０ａと、該ジョイント部２０ａの長さ方向に間隔をあけて突出させた複数の電線接続用端子部２０ｂからなる。
バスバー２０のジョイント部２０ａをコネクタハウジング１１のバスバー収容部１１ａに収容する一方、電線接続用端子部２０ｂはコネクタハウジング１１の端子孔１１ｄとガイド筒１１ｆの中空部１１ｇを貫通させて、先端部をコネクタ嵌合部１１ｂ内に突出させている。このとき、電線接続用端子部２０ｂの先端はコネクタ嵌合部１１ｂに設けたガイド突起１１ｅの奥端よりもコネクタ嵌合部１１ｂの開口端側に位置する。
このように、コネクタハウジング１１内にバスバー２０を収容した状態で、バスバー収容部１１ａを設けたコネクタハウジング１１の一側にコネクタカバー１２をロック結合して、バスバー収容部１１ａの開口端を閉鎖している。 The bus bar 20 accommodated in the bus bar accommodating portion 11a of the connector housing 11 includes a long joint portion 20a and a plurality of electric wire connecting terminal portions 20b protruding at intervals in the length direction of the joint portion 20a. .
The joint portion 20a of the bus bar 20 is accommodated in the bus bar accommodating portion 11a of the connector housing 11, while the electric wire connecting terminal portion 20b passes through the terminal hole 11d of the connector housing 11 and the hollow portion 11g of the guide tube 11f, and the tip portion is It protrudes into the connector fitting portion 11b. At this time, the tip of the wire connecting terminal portion 20b is positioned closer to the opening end of the connector fitting portion 11b than the inner end of the guide projection 11e provided on the connector fitting portion 11b.
As described above, in a state where the bus bar 20 is accommodated in the connector housing 11, the connector cover 12 is lock-coupled to one side of the connector housing 11 provided with the bus bar accommodating portion 11a, and the open end of the bus bar accommodating portion 11a is closed. ing.

前記コネクタハウジング１１のコネクタ嵌合部１１ｂには、磁性体であるフェライトからなるフィルタ材２１と、該フィルタ材２１をコネクタ嵌合部１１ｂ内に固定する押さえ部材２２を収容している。   The connector fitting portion 11b of the connector housing 11 accommodates a filter material 21 made of ferrite as a magnetic material and a pressing member 22 that fixes the filter material 21 in the connector fitting portion 11b.

前記押さえ部材２２は、図２に示すように、底壁２２ａの一面の両側に押さえリブ２２ｂを突設する一方、他面には複数の仕切り壁２２ｃを突設し、該仕切り壁２２ｃによりコネクタ嵌合部１１ｂを複数に分割している。該押さえ部材２２の底壁２２ａはコネクタ嵌合部１１ｂの内面に設けた係止爪１１ｈで係止してハウジング１１内に固定している。   As shown in FIG. 2, the pressing member 22 has pressing ribs 22b protruding from both sides of one surface of the bottom wall 22a, and a plurality of partition walls 22c protruding from the other surface. The fitting part 11b is divided into a plurality of parts. The bottom wall 22a of the pressing member 22 is locked in the housing 11 by locking with a locking claw 11h provided on the inner surface of the connector fitting portion 11b.

前記フィルタ材２１は矩形板状とし、図３に示すように、所要箇所にバスバー２０の電線接続用端子部２０ｂを貫通できる径の端子孔２１ａを複数穿設している。フィルタ材２１の中心Ｏを挟んで対向する隅部に一対の円弧状の凹部からなる被ガイド部２１ｂを設けている。該被ガイド部２１ｂはコネクタハウジング１１のコネクタ嵌合部１１ｂに設けたガイド突起１１ｅの円弧面に沿う形状としている。また、コネクタ嵌合部１１ｂの内周面とフィルタ材２１の外周面との間には、１ｍｍ以上の隙間を設け、フィルタ材２１がコネクタ嵌合部１１ｂの開口端から所定位置までフィルタ材２１の自重で落下する構成としている。   The filter material 21 has a rectangular plate shape, and as shown in FIG. 3, a plurality of terminal holes 21a having a diameter capable of penetrating the electric wire connecting terminal portion 20b of the bus bar 20 are formed at a required location. A guided portion 21b made of a pair of arc-shaped concave portions is provided at corners facing each other across the center O of the filter material 21. The guided portion 21 b has a shape along the arc surface of the guide projection 11 e provided on the connector fitting portion 11 b of the connector housing 11. Further, a gap of 1 mm or more is provided between the inner peripheral surface of the connector fitting portion 11b and the outer peripheral surface of the filter material 21, so that the filter material 21 extends from the opening end of the connector fitting portion 11b to a predetermined position. It is configured to fall with its own weight.

次に、前記フィルタ材２１および押さえ部材２２をコネクタハウジング１１に挿入して組み立てる作業手順を説明する。
コネクタハウジング１１内には予めバスバー２０を収容してコネクタカバー１２を結合している。
この状態で、フィルタ材２１はコネクタ嵌合部１１ｂの先端開口から挿入し、その際、フィルタ材２１の被ガイド部２１ｂをコネクタ嵌合部１１ｂのガイド突起１１ｅに沿わせてスライドさせて挿入する。このように、フィルタ材２１の対象位置の隅部の被ガイド部２１ｂを、コネクタハウジング１１内のガイド突起１１ｅに沿わせてスライド挿入しているため、フィルタ材２１は傾かず水平状態を維持しながらコネクタ嵌合部１１ｂ内に挿入される。 Next, an operation procedure for inserting and assembling the filter material 21 and the pressing member 22 into the connector housing 11 will be described.
A bus bar 20 is accommodated in the connector housing 11 in advance and a connector cover 12 is coupled thereto.
In this state, the filter material 21 is inserted from the front end opening of the connector fitting portion 11b. At this time, the guided portion 21b of the filter material 21 is slid along the guide protrusion 11e of the connector fitting portion 11b and inserted. . Thus, since the guided portion 21b at the corner of the target position of the filter material 21 is slid along the guide protrusion 11e in the connector housing 11, the filter material 21 does not tilt and maintains a horizontal state. However, it is inserted into the connector fitting portion 11b.

前記フィルタ材２１をコネクタ嵌合部１１ｂ内に更にスライド挿入していくと、図４（Ａ）に示すように、フィルタ材２１の端子孔２１ａに電線接続端子部２０ｂが挿入される。その際、端子孔２１ａは電線接続端子部２０ｂの外形よりも大きくしていると共にフィルタ材２１は水平状態を保持しながら挿入されるため、電線接続端子部２０ｂと端子孔２１ａとが位置ずれすることはなく、電線接続端子部２０ｂと干渉して変形を生じさせることはない。   When the filter material 21 is further slid into the connector fitting portion 11b, the wire connection terminal portion 20b is inserted into the terminal hole 21a of the filter material 21 as shown in FIG. At that time, since the terminal hole 21a is larger than the outer shape of the electric wire connecting terminal portion 20b and the filter material 21 is inserted while maintaining a horizontal state, the electric wire connecting terminal portion 20b and the terminal hole 21a are displaced. There is nothing, and it does not interfere with the wire connection terminal portion 20b to cause deformation.

さらに、フィルタ材２１をスライド挿入していくと、フィルタ材２１の端子孔２１ａは電線接続用端子部２０ｂを貫通させたガイド筒１１ｆの先端位置に達する。其の際、図４（Ａ）に示すように、端子孔２１ａの内周面の一部がガイド筒１１ｆの円錐形状の外周面に当接しても、この円錐形状の外周面に沿ってフィルタ材２１の端子孔２１ａが挿入されていくことで自動的にセンタリングされていく。図４（Ｂ）に示すように、ガイド筒１１ｆの外径が端子孔２１ａの内径と一致した位置で、端子孔２１ａの周縁全周がガイド筒１１ｆの外周面に当接して停止し、この状態で端子孔２１ａと電線接続端子部２０ｂとの中心が一致した状態となり、確実にセンタリングされた状態となる。   Further, when the filter material 21 is slid and inserted, the terminal hole 21a of the filter material 21 reaches the tip position of the guide tube 11f that penetrates the wire connecting terminal portion 20b. At that time, as shown in FIG. 4A, even if a part of the inner peripheral surface of the terminal hole 21a abuts on the conical outer peripheral surface of the guide cylinder 11f, the filter is formed along the conical outer peripheral surface. As the terminal hole 21a of the material 21 is inserted, it is automatically centered. As shown in FIG. 4B, at the position where the outer diameter of the guide cylinder 11f coincides with the inner diameter of the terminal hole 21a, the entire periphery of the terminal hole 21a abuts against the outer peripheral surface of the guide cylinder 11f and stops. In this state, the centers of the terminal hole 21a and the electric wire connecting terminal portion 20b are aligned, and the center is reliably centered.

前記のように、フィルタ材２１をコネクタハウジング１１内に収容後、前記押さえ部材２２をコネクタ嵌合部１１ｂに挿入し、底壁２２ａを係止爪１１ｈで係止する。この状態で、押さえ部材２２の押さえリブ２２ｂの先端がフィルタ材２１の図中上面の周縁に押し当てられ、該フィルタ材２１はコネクタ嵌合部１１ｂ内に固定される。   As described above, after the filter material 21 is accommodated in the connector housing 11, the pressing member 22 is inserted into the connector fitting portion 11b, and the bottom wall 22a is locked by the locking claws 11h. In this state, the tip of the pressing rib 22b of the pressing member 22 is pressed against the periphery of the upper surface of the filter material 21 in the drawing, and the filter material 21 is fixed in the connector fitting portion 11b.

前記のように、コネクタハウジング１１内にフィルタ材２１、押さえ部材２２が挿入して組み立てた構成からなる分岐コネクタ１０のコネクタ嵌合部１１ｂには、図１に示すように、コネクタ３０（３０Ａ、３０Ｂ）が嵌合接続される。   As described above, the connector fitting portion 11b of the branch connector 10 having a structure in which the filter material 21 and the pressing member 22 are inserted and assembled in the connector housing 11 is provided with a connector 30 (30A, 30A, 30B) are fitted and connected.

前記コネクタ３０は、図５に示すように、コネクタハウジング３１に上下方向Ｙに２つの端子収容室３１ａを並設している。該コネクタ３０は、前記したように、差動伝送線路を構成するツイストペア電線４０の端末に接続され、上方の端子収容室３１ａ−１には、ツイストペア電線４０の第１通信線４１Ａ（ＣＡＮ＿Ｈ）の端末に接続した端子４２Ａが挿入係止されている一方、下方の端子収容室３１ａ−２には、ツイストペア電線４０の第２通信線４１Ｂ（ＣＡＮ＿Ｌ）の端末に接続した端子４２Ｂが挿入係止されている。   As shown in FIG. 5, the connector 30 has two terminal accommodating chambers 31 a arranged in parallel in the vertical direction Y in the connector housing 31. As described above, the connector 30 is connected to the terminal of the twisted pair electric wire 40 constituting the differential transmission line, and the upper terminal accommodating chamber 31a-1 has the first communication line 41A (CAN_H) of the twisted pair electric wire 40. While the terminal 42A connected to the terminal is inserted and locked, the terminal 42B connected to the terminal of the second communication line 41B (CAN_L) of the twisted pair electric wire 40 is inserted and locked in the lower terminal accommodating chamber 31a-2. ing.

本実施形態では、通信回路の幹線を構成する２組のツイストペア電線４０Ａと支線を構成する２組のツイストペア電線４０Ｂの端末に接続されたコネクタ３０Ａ、３０Ｂを分岐コネクタ１０のコネクタ嵌合部１１ｂに夫々嵌合している。このとき、コネクタ３０の端子４２Ａ、４２Ｂが分岐コネクタ１０内のバスバー２０の電線接続用端子部２０ｂとそれぞれ雌雄嵌合接続され、ツイストペア電線４０の第１通信線４１Ａ同士、第２通信線４１Ｂ同士がそれぞれバスバー２０を介して接続される。   In this embodiment, the connectors 30A and 30B connected to the terminals of the two pairs of twisted pair electric wires 40A constituting the trunk line of the communication circuit and the two sets of twisted pair electric wires 40B constituting the branch lines are used as the connector fitting portions 11b of the branch connector 10. Each is mated. At this time, the terminals 42A and 42B of the connector 30 are respectively male and female fitted and connected to the electric wire connecting terminal portion 20b of the bus bar 20 in the branch connector 10, and the first communication lines 41A and the second communication lines 41B of the twisted pair electric wires 40 are connected. Are connected to each other via a bus bar 20.

前記コネクタ３０Ａ、３０Ｂと接続した分岐コネクタ１０では、分岐接続部を形成するバスバー２０の電線接続用端子部２０ｂを磁性体からなるフィルタ材２１に通しているため、該フィルタ材２１が分岐接続部近傍に発生する磁界を吸収し、分岐部のインピーダンス不整合から増大した高周波成分を低減することができ、分岐接続部で生じやすい伝送波形の歪みを改善することができる。   In the branch connector 10 connected to the connectors 30A and 30B, the wire connection terminal portion 20b of the bus bar 20 forming the branch connection portion is passed through the filter material 21 made of a magnetic material. By absorbing a magnetic field generated in the vicinity, it is possible to reduce the high-frequency component that has increased due to impedance mismatching at the branch portion, and to improve the distortion of the transmission waveform that tends to occur at the branch connection portion.

また、本発明の分岐コネクタ１０では、１つのフィルタ材２１に複数の端子孔２１ａを設けて複数の電線接続用端子部２０ｂを貫通させているため、フィルタ材２１の個数を減らして部品点数を低減することができる。
さらに、１つのフィルタ材２１に複数の電線接続用端子部２０ｂを一括で貫通させるようにして、フィルタ材２１を大型の板状としているが、フィルタ材２１の被ガイド部２１ｂをコネクタ嵌合部１１ｂのガイド突起１１ｅに沿わせてフィルタ材を挿入しているため、該挿入時におけるフィルタ材の傾きを発生させず、フィルタ材をスムーズにコネクタ嵌合部１１ｂ内に挿入でき、分岐コネクタ１０の組立作業性を高めることができる。
さらにまた、コネクタ嵌合部１１ｂに設けたガイド筒１１ｆによりフィルタ材２１の端子孔２１ａと電線接続端子部２０ａとが自動的にセンタリングされて組み立てられるため、フィルタ性能を保証して、伝送波形の歪みをより効率良く改善することができる。 Further, in the branch connector 10 of the present invention, since a plurality of terminal holes 21a are provided in one filter material 21 and the plurality of wire connecting terminal portions 20b are penetrated, the number of filter materials 21 is reduced and the number of parts is reduced. Can be reduced.
Further, the plurality of electric wire connecting terminal portions 20b are collectively penetrated through one filter material 21 so that the filter material 21 has a large plate shape. However, the guided portion 21b of the filter material 21 is connected to the connector fitting portion. Since the filter material is inserted along the guide protrusion 11e of 11b, the filter material can be smoothly inserted into the connector fitting portion 11b without causing the filter material to be inclined during the insertion. Assembly workability can be improved.
Furthermore, since the terminal hole 21a of the filter material 21 and the wire connection terminal portion 20a are automatically centered and assembled by the guide tube 11f provided in the connector fitting portion 11b, the filter performance is guaranteed and the transmission waveform Distortion can be improved more efficiently.

なお、フィルタ材２１は、ケイ素鋼板やパーマロイにより形成してもよい。
また、本実施形態では、分岐コネクタ１０に差動伝送線路を構成するツイストペア電線４０を接続しているため、コネクタハウジング１１内にバスバー２０を２段で配置しているが、ペア電線以外の電線を接続する場合には、コネクタハウジング１１に１段あるいは３段以上でバスバーを配置してもよい。 The filter material 21 may be formed of a silicon steel plate or permalloy.
Moreover, in this embodiment, since the twisted pair electric wire 40 which comprises a differential transmission line is connected to the branch connector 10, the bus bar 20 is arrange | positioned in two steps in the connector housing 11, but electric wires other than a pair electric wire are used. When connecting the bus bars, the connector housing 11 may be provided with one or more bus bars.

図６（Ａ）（Ｂ）に本発明の実施形態の第１変形例を示す。
本変形例では、コネクタハウジング１１のコネクタ嵌合部１１ｂに設けたガイド突起１１ｅとフィルタ材２１に設けた被ガイド部２１ｂの形状を前記実施形態と相違させている。 FIGS. 6A and 6B show a first modification of the embodiment of the present invention.
In this modification, the shapes of the guide protrusion 11e provided on the connector fitting portion 11b of the connector housing 11 and the guided portion 21b provided on the filter material 21 are different from those of the above embodiment.

具体的には、図６（Ａ）に示すように、ガイド突起１１ｅの前記挿入方向Ｚに直交する断面を矩形状とする一方、被ガイド部２１ｂをガイド突起１１ｅの外面に沿う矩形状に切り欠いた凹部としている。
また、図６（Ｂ）に示すように、ガイド突起１１ｅを円柱状とする一方、被ガイド部２１ｂを円形の貫通孔としてもよい。
即ち、ガイド突起１１ｅと被ガイド部２１ｂの形状は、互いに沿うことにより挿入時のフィルタ材２１の傾きが防止できればどのような形状であってもよい。
なお、図６では、フィルタ材２１の端子孔およびバスバーの電線接続用端子部の図示を省略している。
また、他の構成及び作用効果は前記実施形態と同様のため、同一の符号を付して説明を省略する。 Specifically, as shown in FIG. 6A, the cross-section perpendicular to the insertion direction Z of the guide protrusion 11e is rectangular, and the guided portion 21b is cut into a rectangular shape along the outer surface of the guide protrusion 11e. It is a missing recess.
Further, as shown in FIG. 6B, the guide protrusion 11e may be a columnar shape, and the guided portion 21b may be a circular through hole.
That is, the shape of the guide protrusion 11e and the guided portion 21b may be any shape as long as the filter material 21 can be prevented from being tilted during insertion by being along each other.
In FIG. 6, the terminal holes of the filter material 21 and the wire connection terminal portions of the bus bar are not shown.
In addition, since other configurations and operational effects are the same as those of the above-described embodiment, the same reference numerals are given and description thereof is omitted.

図７（Ａ）（Ｂ）に本発明の実施形態の第２変形例を示す。
本変形例では、コネクタハウジング１１のコネクタ嵌合部１１ｂに設けたガイド突起１１ｅとフィルタ材２１に設けた被ガイド部２１ｂの位置を前記実施形態と相違させている。 7A and 7B show a second modification of the embodiment of the present invention.
In this modification, the positions of the guide protrusions 11e provided on the connector fitting portion 11b of the connector housing 11 and the guided portions 21b provided on the filter material 21 are different from those in the above embodiment.

具体的には、図７（Ａ）に示すように、コネクタ嵌合部１１ｂの長辺の中央に前記挿入方向Ｚに直交する断面を半円形状とした一対のガイド突起１１ｅを対向させて設ける一方、フィルタ材２１の長辺の中央に半円形状に切り欠いた一対の凹部からなる被ガイド部２１ｂを対向させて設けている。
また、図７（Ｂ）に示すように、コネクタ嵌合部１１ｂの短辺の中央に前記挿入方向Ｚに直交する断面を半円形状とした一対のガイド突起１１ｅを対向させて設ける一方、フィルタ材２１の短辺の中央に半円形状に切り欠いた一対の凹部からなる被ガイド部２１ｂを対向させて設けてもよい。
即ち、ガイド突起１１ｅと被ガイド部２１ｂを設ける位置は、前記挿入方向Ｚと直交する方向のコネクタハウジング１１（コネクタ嵌合部１１ｂ）の断面の中心Ｏを挟んだ対向位置であればよく、また、一対に限らず複数組設けてもよい。
なお、前記第１変形例で示した矩形状もしくは円形状のガイド突起１１ｅと被ガイド部２１ｂを第２変形例で示した箇所に設けてもよい。
また、図７では、フィルタ材２１の端子孔およびバスバーの電線接続用端子部の図示を省略している。
さらに、他の構成及び作用効果は前記実施形態と同様のため、同一の符号を付して説明を省略する。 Specifically, as shown in FIG. 7A, a pair of guide protrusions 11e having a semicircular cross section perpendicular to the insertion direction Z are provided opposite to each other at the center of the long side of the connector fitting portion 11b. On the other hand, a guided portion 21b composed of a pair of concave portions cut out in a semicircular shape is provided in the center of the long side of the filter material 21 so as to face each other.
In addition, as shown in FIG. 7B, a pair of guide protrusions 11e having a semicircular cross section perpendicular to the insertion direction Z are provided opposite to each other at the center of the short side of the connector fitting portion 11b. A guided portion 21b composed of a pair of concave portions cut out in a semicircular shape may be provided in the center of the short side of the material 21 so as to face each other.
That is, the position at which the guide protrusion 11e and the guided portion 21b are provided may be an opposing position across the center O of the cross section of the connector housing 11 (connector fitting portion 11b) in the direction orthogonal to the insertion direction Z. , Not limited to a pair, a plurality of sets may be provided.
The rectangular or circular guide protrusion 11e and the guided portion 21b shown in the first modification may be provided at the locations shown in the second modification.
Moreover, in FIG. 7, illustration of the terminal hole of the filter material 21 and the terminal part for electric wire connection of a bus bar is abbreviate | omitted.
Furthermore, since the other structure and effect are the same as that of the said embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

本発明の通信線の分岐接続構造は、車載ＬＡＮ・ＯＡ(Office Automation)・ＦＡ(Factory Automation)等の通信回路に好適に用いられるものである。   The communication line branch connection structure of the present invention is suitably used for communication circuits such as in-vehicle LAN, OA (Office Automation), and FA (Factory Automation).

本発明の実施形態の分岐コネクタと、該分岐コネクタに接続するコネクタを示す図面である。It is drawing which shows the branch connector of embodiment of this invention, and the connector connected to this branch connector. 分岐コネクタの断面図である。It is sectional drawing of a branch connector. コネクタハウジングにフィルタ材を取り付けた状態を示す図面である。It is drawing which shows the state which attached the filter material to the connector housing. （Ａ）（Ｂ）は、コネクタハウジングにフィルタ材を取り付ける方法を示す図面である。(A) (B) is drawing which shows the method of attaching a filter material to a connector housing. 分岐コネクタにコネクタを接続した状態を示す断面図である。It is sectional drawing which shows the state which connected the connector to the branch connector. （Ａ）（Ｂ）は、本発明の実施形態の第１変形例を示す図面である。(A) (B) is drawing which shows the 1st modification of embodiment of this invention. （Ａ）（Ｂ）は、本発明の実施形態の第２変形例を示す図面である。(A) and (B) are drawings which show the 2nd modification of an embodiment of the present invention. 従来例を示す図面である。It is drawing which shows a prior art example.

符号の説明Explanation of symbols

１０ 分岐コネクタ
１１ コネクタハウジング
１１ｂ コネクタ嵌合部
１１ｅ ガイド突起
１１ｆ ガイド筒
１２ コネクタカバー
２０ バスバー
２０ａ ジョイント部
２０ｂ 電線接続用端子部
２１ フィルタ材
２１ａ 端子孔
２１ｂ 被ガイド部 DESCRIPTION OF SYMBOLS 10 Branch connector 11 Connector housing 11b Connector fitting part 11e Guide protrusion 11f Guide cylinder 12 Connector cover
20 Bus bar 20a Joint portion 20b Electric wire connecting terminal portion 21 Filter material 21a Terminal hole 21b Guided portion

Claims (4)

通信回路を構成する幹線から支線が分岐接続する位置に設ける分岐コネクタであって、
コネクタハウジング内の一側部に、
長尺なジョイント部と、該ジョイント部の長さ方向に間隔をあけて突出させた複数の電線接続用端子部を有するバスバーと、
前記電線接続用端子部を貫通させる端子孔を複数穿設した板状の磁性体からなるフィルタ材が収容され、
前記コネクタハウジングの内面にガイド突起が設けられている一方、前記フィルタ材に前記ガイド突起に沿う形状の凹部あるいは貫通孔からなる被ガイド部が設けられ、
前記フィルタ材は、コネクタハウジングの他側の相手方コネクタの嵌合部から前記被ガイド部を前記ガイド突起に沿って挿入されていることを特徴とする分岐コネクタ。 A branch connector provided at a position where the branch line branches from the main line constituting the communication circuit,
On one side of the connector housing,
A bus bar having a long joint portion and a plurality of terminal portions for electric wire connection projecting at an interval in the length direction of the joint portion;
A filter material made of a plate-like magnetic body having a plurality of terminal holes penetrating the wire connecting terminal portion is accommodated,
While the guide projection is provided on the inner surface of the connector housing, the filter material is provided with a guided portion including a concave portion or a through hole having a shape along the guide projection,
The branching connector, wherein the filter member has the guided portion inserted along the guide protrusion from a fitting portion of a mating connector on the other side of the connector housing. 前記コネクタハウジングのガイド突起およびフィルタ材の被ガイド部は、少なくとも前記フィルタ材のコネクタハウジングへの挿入方向と直交する方向のコネクタハウジング断面の中心を挟んだ対向位置に設けられている請求項１に記載の分岐コネクタ。   The guide projection of the connector housing and the guided portion of the filter material are provided at opposing positions sandwiching at least the center of the connector housing cross section in a direction orthogonal to the insertion direction of the filter material into the connector housing. Branch connector described. 前記コネクタハウジングに前記電線接続端子部を貫通させると共に前記フィルタ材を位置決めするガイド筒が設けられ、該ガイド筒の外周面は円錐形状とされ、前記フィルタ材の端子孔の内周面が前記ガイド筒の外周面に当接され、該端子穴と電線接続端子部とがセンタリングされている請求項１または請求項２に記載の分岐コネクタ。   The connector housing is provided with a guide cylinder for penetrating the wire connection terminal portion and positioning the filter material, the outer peripheral surface of the guide cylinder is conical, and the inner peripheral surface of the terminal hole of the filter material is the guide The branch connector according to claim 1 or 2, wherein the terminal hole and the electric wire connection terminal portion are centered by being brought into contact with the outer peripheral surface of the cylinder. 前記フィルタ材は、フェライト、ケイ素鋼板あるいはパーマロイからなる請求項１乃至請求項３のいずれか１項に記載の分岐コネクタ。   The branch connector according to any one of claims 1 to 3, wherein the filter material is made of ferrite, a silicon steel plate, or permalloy.
JP2006344554A 2006-12-21 2006-12-21 Branch connector Pending JP2008159311A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010033961A (en) * 2008-07-30 2010-02-12 Autonetworks Technologies Ltd Waveform distortion reducing member and communication line having the waveform distortion reducing member
WO2012039510A1 (en) * 2010-09-21 2012-03-29 Yazaki Corporation Connector having noise removal capability
JP2013239114A (en) * 2012-05-17 2013-11-28 Murata Mfg Co Ltd Memory card device and card connector
US9898698B2 (en) 2011-07-01 2018-02-20 The Boeing Company Production tool having RFID device mounted within a dielectric inclusion
DE102014007029B4 (en) * 2013-05-22 2020-03-26 Autonetworks Technologies, Ltd. Connector with built-in ferrite core and manufacturing process therefor
JP2020047368A (en) * 2018-09-14 2020-03-26 矢崎総業株式会社 Connector for multiplex communication
CN115189323A (en) * 2022-06-21 2022-10-14 国网山东省电力公司鱼台县供电公司 Junction box and method for low-voltage power cable

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JPH01315212A (en) * 1988-06-15 1989-12-20 Sumitomo Electric Ind Ltd Branch connector
JPH10508148A (en) * 1994-10-31 1998-08-04 バーグ・テクノロジー・インコーポレーテッド Low cost filter and shielded electrical connectors and methods of use
JP2004193070A (en) * 2002-12-13 2004-07-08 Alps Electric Co Ltd Rotary connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01315212A (en) * 1988-06-15 1989-12-20 Sumitomo Electric Ind Ltd Branch connector
JPH10508148A (en) * 1994-10-31 1998-08-04 バーグ・テクノロジー・インコーポレーテッド Low cost filter and shielded electrical connectors and methods of use
JP2004193070A (en) * 2002-12-13 2004-07-08 Alps Electric Co Ltd Rotary connector

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010033961A (en) * 2008-07-30 2010-02-12 Autonetworks Technologies Ltd Waveform distortion reducing member and communication line having the waveform distortion reducing member
WO2012039510A1 (en) * 2010-09-21 2012-03-29 Yazaki Corporation Connector having noise removal capability
US8992259B2 (en) 2010-09-21 2015-03-31 Yazaki Corporation Connector having noise removal capability
US9898698B2 (en) 2011-07-01 2018-02-20 The Boeing Company Production tool having RFID device mounted within a dielectric inclusion
JP2013239114A (en) * 2012-05-17 2013-11-28 Murata Mfg Co Ltd Memory card device and card connector
DE102014007029B4 (en) * 2013-05-22 2020-03-26 Autonetworks Technologies, Ltd. Connector with built-in ferrite core and manufacturing process therefor
JP2020047368A (en) * 2018-09-14 2020-03-26 矢崎総業株式会社 Connector for multiplex communication
JP7168386B2 (en) 2018-09-14 2022-11-09 矢崎総業株式会社 Connector for multiplex communication
CN115189323A (en) * 2022-06-21 2022-10-14 国网山东省电力公司鱼台县供电公司 Junction box and method for low-voltage power cable
CN115189323B (en) * 2022-06-21 2023-09-26 国网山东省电力公司鱼台县供电公司 Junction box and method for low-voltage power cable

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