JP4829725B2 - Branch connector and branch connector manufacturing method - Google Patents

Description

本発明は、分岐コネクタおよび分岐コネクタの製造方法に関し、詳しくは、自動車内に配索されるＬＡＮ中に介設され、通信回路の分岐接続部で発生する信号の反射を減衰する機能をコネクタ内に設けたものである。   The present invention relates to a branch connector and a branch connector manufacturing method, and more particularly, to a function of attenuating reflection of signals generated in a branch connection portion of a communication circuit that is interposed in a LAN routed in an automobile. Is provided.

従来、自動車に配索される電線同士の接続にはコネクタが多く用いられており、特開２００６−４８５２号公報（特許文献１）では、電子部品を内蔵したコネクタが提供されている。
特許文献１で提供されたコネクタ１は、図７に示すように、アッパーケース２とロアケース３からなるハウジング４内に複数の電子部品５を実装したプリント基板６を収容して、該プリント基板６に接続した端子７を外部電線（図示せず）の端末の端子と接続している。 Conventionally, a connector is often used for connection between electric wires arranged in an automobile, and Japanese Patent Application Laid-Open No. 2006-4852 (Patent Document 1) provides a connector incorporating an electronic component.
As shown in FIG. 7, the connector 1 provided in Patent Document 1 accommodates a printed circuit board 6 in which a plurality of electronic components 5 are mounted in a housing 4 including an upper case 2 and a lower case 3. The terminal 7 connected to is connected to the terminal of the terminal of the external electric wire (not shown).

特許文献１で提供されているコネクタ１は電子部品５を実装したプリント基板６を内蔵しているため、コネクタに様々な機能を持たせることができ、通信回路の分岐点に抵抗器やコイルの電子部品を実装すると、分岐点における信号の反射を減衰することができる。
しかしながら、電子部品５を実装したプリント基板６をコネクタハウジング内に収容したコネクタ１とする場合、その製造工程において煩雑な実装工程が必要となると共に、多数の部品が必要となるためコスト高になり、かつ、コネクタが大型化する問題がある。 Since the connector 1 provided in Patent Document 1 includes a printed circuit board 6 on which an electronic component 5 is mounted, the connector can have various functions, and a resistor or a coil can be provided at a branch point of the communication circuit. When an electronic component is mounted, reflection of a signal at a branch point can be attenuated.
However, when the printed circuit board 6 on which the electronic component 5 is mounted is used as the connector 1 accommodated in the connector housing, a complicated mounting process is required in the manufacturing process, and a large number of components are required. And there exists a problem which a connector enlarges.

特開２００６−４８５２号公報JP 2006-4852 A

本発明は前記問題に鑑みてなされたものであり、分岐コネクタ内に配置する電子部品を基板に実装することなく回路中に設け、実装工程や電子部品を実装するための基板を不要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 an electronic component disposed in a branch connector is provided in a circuit without being mounted on a substrate, and a mounting process and a substrate for mounting the electronic component are not required. Is an issue.

前記課題を解決するため、第１の発明として、幹線から複数の支線を分岐接続する位置に設ける分岐コネクタの製造方法であって、
導電性金属板を打ち抜いてバスバーを設け、
前記バスバーは幹線側の導体と接続させる第１長尺部と前記複数の支線側の導体と接続させる第２長尺部とを並設していると共に、これら第１、第２長尺部の間を間隔をあけて切断用連結部で連結し、
前記第２長尺部に長さ方向に間隔をあけて前記第１長尺部と反対方向へ支線接続用の端子部を突出させると共に、各支線接続用の端子部の側部に圧接端子部を立設させ、かつ、各圧接端子部と対向位置の第１長尺部に圧接端子部を立設し、
前記第１、第２長尺部の対向する圧接端子部に電子部品の両端のリード線を圧接接続して、前記幹線側と接続する第１長尺部と各支線側と接続する端子部とを前記電子部品を介在させて接続しておき、
前記バスバーをコネクタハウジング内に収容固定した後に、前記切断用連結部を切断除去すると共に、前記第２長尺部の前記各支線側に接続される端子部と圧接端子部とを１組の支線接続用回路材として、隣接する各組の支線接続用回路材の間の連結部も切断除去していることを特徴とする分岐コネクタの製造方法を提供している。 In order to solve the above problems, as a first invention, a branch connector manufacturing method provided at a position where a plurality of branch lines are branched from a trunk line,
Punching a conductive metal plate and providing a bus bar,
The bus bar is provided with a first elongated portion connected to the conductor on the main line side and a second elongated portion connected to the conductors on the plurality of branch lines side by side, and the first and second elongated portions are connected to each other. Connect with a connecting part for cutting at intervals,
A terminal portion for connecting a branch line protrudes in a direction opposite to the first long portion with a distance in the length direction from the second long portion, and a pressure contact terminal portion on a side portion of each terminal portion for connecting the branch line And erected the pressure contact terminal portion on the first elongated portion opposite to each pressure contact terminal portion,
A first long portion connected to the main line side and a terminal portion connected to each branch line side by press-connecting the lead wires at both ends of the electronic component to the opposite pressure contact terminal portions of the first and second long portions; Are connected via the electronic components,
After the bus bar is accommodated and fixed in the connector housing, the cutting connecting portion is cut and removed, and the terminal portion connected to each branch line side of the second elongated portion and the press contact terminal portion are combined into a set of branch lines. As a connection circuit material, there is provided a method of manufacturing a branch connector characterized in that a connecting portion between adjacent branch connection circuit materials is also cut and removed.

前記第１長尺部と第２長尺部とを連結する切断用連結部を、第２長尺部の各組の支線接続用回路材の間の切断除去される連結部とを連続させて設けておくと、切断箇所が連続した箇所となるため、切断除去作業が容易となる。しかしながら、これら切断除去される連結部は必ずしも連続させて設ける必要はない。   The connecting part for cutting that connects the first long part and the second long part is continuously connected to the connecting part to be removed by cutting between the branch line connecting circuit members of the second long part. If it is provided, the cut portion becomes a continuous portion, so that the cutting and removing work is facilitated. However, the connecting parts to be cut and removed are not necessarily provided continuously.

本発明の分岐コネクタの製造方法によれば、コネクタハウジング内に電子部品を実装したプリント基板を収容して幹線接続回路から分岐する支線接続回路を接続しているのではなく、幹線接続用の端子材と接続させた第１長尺部と各支線接続用の端子部との間に電子部品を圧接接続により介在させている。
このように、バスバーの第１長尺部と端子部との間に電子部品を圧接接続により介設しているため、抵抗を基板に実装する煩雑な工程が不要となる。また、抵抗を実装した基板を用いないため、抵抗を基板に実装する場合に発生する高温化による電子部品への悪影響もない。 According to the method for manufacturing a branch connector of the present invention, a terminal for main line connection is used instead of connecting a branch line connection circuit that accommodates a printed circuit board on which electronic components are mounted in a connector housing and branches off from the main line connection circuit. An electronic component is interposed between the first long portion connected to the material and the terminal portion for connecting each branch line by pressure contact.
As described above, since the electronic component is interposed between the first long portion of the bus bar and the terminal portion by press-contact connection, a complicated process of mounting the resistor on the substrate is not necessary. In addition, since the substrate on which the resistor is mounted is not used, there is no adverse effect on the electronic component due to the high temperature generated when the resistor is mounted on the substrate.

また、前記第１、第２長尺部、端子部、圧接端子部を切断用連結部を介して１枚の導電性金属板を打ち抜いて設けたバスバーより形成しているため、前記切断用連結部を切断して所要の回路形状としているため、分岐コネクタ内に収容する幹線側回路と支線側回路とを分岐させた内部回路材を容易に形成することができる。
なお、前記幹線および支線の導体としては、電線や基板上の導体が挙げられる。 In addition, since the first and second long portions, the terminal portion, and the press contact terminal portion are formed from a bus bar formed by punching one conductive metal plate through a cutting connecting portion, the cutting connecting portion is formed. Since the circuit is cut into a required circuit shape, an internal circuit material in which a main line side circuit and a branch line side circuit accommodated in the branch connector are branched can be easily formed.
The conductors of the trunk line and the branch line include electric wires and conductors on the board.

また、第２の発明として、前記本発明の製造方法によって製造され、幹線接続用の回路材と支線接続用の回路材とは１枚のバスバーを切断分離して設けており、
コネクタハウジング内に、
幹線側と導通される第１長尺部と、該第１長尺部の長さ方向に間隔をあけて設けた圧接端子部とを備えたバスバーからなる前記幹線接続用の回路材と、
前記圧接端子部と対向位置に配置された圧接端子部と、該対向位置の各圧接端子部の側部に連続して設けた支線接続用の端子部とを備えたバスバーからなる前記支線接続用の回路材と、
前記幹線接続用の回路材と前記支線接続用の回路材の圧接端子部との間に、両端のリード線を圧接接続させて介在させた電子部品と、
を備えていることを特徴とする分岐コネクタを提供している。 As a second invention, the circuit material for main line connection and the circuit material for branch line connection manufactured by the manufacturing method of the present invention are provided by cutting and separating one bus bar,
In the connector housing,
A circuit material for connecting the main line comprising a bus bar including a first long portion that is electrically connected to the main line side, and a press-contact terminal portion provided at intervals in the length direction of the first long portion;
For connecting the branch line, comprising a bus bar comprising: a pressure contact terminal portion arranged at a position opposite to the pressure contact terminal portion; and a branch line connection terminal portion continuously provided on a side portion of each pressure contact terminal portion at the opposite position . Circuit material,
Between the circuit material for connecting the main line and the press contact terminal portion of the circuit material for connecting the branch line, an electronic component interposed by press-connecting lead wires at both ends,
A branch connector is provided.

本発明の分岐コネクタによれば、電子部品を実装した基板が不要となるため、分岐コネクタを小型化できると共に低コスト化を図ることができる。   According to the branch connector of the present invention, since a board on which electronic components are mounted is not necessary, the branch connector can be reduced in size and cost can be reduced.

前記分岐接続する幹線および支線が通信線の場合には、前記支線接続用の回路材には前記圧接端子部を２個並列に設けていると共に、これら２個の圧接端子部と対向させて前記幹線接続用の回路材に２個の圧接端子部を設け、
前記一方の対向する圧接端子部の間に前記電子部品として抵抗器を前記リード線を介して圧接接続していると共に、他方の対向する圧接端子部の間に前記電子部品としてコイルを前記リード線を介して圧接接続していることが好ましい。 When the branch line and the branch line are communication lines, the circuit material for connecting the branch line is provided with the two pressure contact terminal portions in parallel, and is opposed to the two pressure contact terminal portions. Two pressure contact terminals are provided on the circuit material for main connection,
A resistor is press-connected as the electronic component between the one opposing pressure contact terminal portions via the lead wire, and a coil is connected as the electronic component between the other opposing pressure contact terminal portions. It is preferable that the pressure connection is established via

また、前記幹線および複数の支線の電線が差動伝送線路を構成するツイストペア電線あるいはシールドツイストペア電線等のペア電線からなる場合には、
前記コネクタハウジング内に上下２段に前記幹線接続用の回路材と支線接続用の回路材とを収容しており、
前記ペア電線の第１通信線と第２通信線のいずれか一方は上段側、他方は下段側の回路材と接続され、支線側のペア電線は前記抵抗器およびコイルから構成されるフィルタ回路を介して幹線側のペア電線と接続されていることが好ましい。 In addition, in the case where the main line and the electric wires of the plurality of branch lines are made of a pair electric wire such as a twisted pair electric wire or a shielded twisted electric wire constituting the differential transmission line,
The circuit housing for connecting the main line and the circuit material for connecting the branch line are accommodated in the upper and lower two stages in the connector housing,
Either the first communication line or the second communication line of the paired wires is connected to the circuit material on the upper stage side and the other is on the lower stage side, and the paired wires on the branch line side include a filter circuit composed of the resistor and the coil. It is preferable that it is connected with the pair electric wire of the trunk line side via.

前記構成によれば、通信回路の幹線から支線が分岐する分岐部近傍の支線側に前記抵抗器とコイルの並列回路からなるフィルタ回路を容易に形成することができ、該フィルタ回路により分岐部で生じる信号の反射を早期に減衰させることができる。   According to the above configuration, a filter circuit composed of a parallel circuit of the resistor and the coil can be easily formed on the branch line side near the branch part where the branch line branches from the trunk line of the communication circuit. The resulting signal reflection can be attenuated early.

前記抵抗器の抵抗値を通信回路の幹線のインピーダンス（Ｚｏ）の６％〜５０％、好ましくは１０％〜２２％とすることが好ましい。
前記６％以上であれば抵抗器をフィルタ回路として機能させて、通信回路の分岐部における信号の反射を減衰させることができる。一方、５０％を越えると受信側の電圧低下を招き通信エラーとなる。 The resistance value of the resistor is preferably 6% to 50%, preferably 10% to 22%, of the impedance (Zo) of the trunk line of the communication circuit.
If it is 6% or more, the resistor can function as a filter circuit, and the reflection of the signal at the branch portion of the communication circuit can be attenuated. On the other hand, if it exceeds 50%, a voltage drop on the receiving side is caused and a communication error occurs.

前述したように、本発明の製造方法で製造された分岐コネクタによれば、幹線側と接続される第１長尺部と各支線接続用の端子部との間に圧接接続により電子部品を介設しているため、電子部品を基板に実装する工程が不要となると共に抵抗材を実装した基板が不要となり、分岐コネクタを小型化できると共に低コスト化を図ることができる。
さらに、通信回路の幹線から支線の接続分岐位置に抵抗器およびコイルからなるフィルタ回路を容易に設けることができ、該フィルタ回路により分岐部で生じる信号の反射を早期に減衰させることができる。 As described above, according to the branch connector manufactured by the manufacturing method of the present invention, an electronic component is interposed between the first long portion connected to the main line side and the terminal portion for connecting each branch line by pressure contact. Therefore, the step of mounting the electronic component on the substrate is not required, and the substrate on which the resistance material is mounted is not required, so that the branch connector can be miniaturized and the cost can be reduced.
Furthermore, a filter circuit composed of a resistor and a coil can be easily provided at a connection branch position from the trunk line to the branch line of the communication circuit, and reflection of a signal generated at the branch portion can be attenuated at an early stage by the filter circuit.

また、本発明の分岐コネクタの製造方法によれば、幹線と支線とを分岐させる共に電子部品を介在させる内部回路材を、１枚の導電性金属板を打ち抜いて設けたバスバーより形成しているため、分岐コネクタの内部回路材を容易に形成することができる。   Further, according to the branch connector manufacturing method of the present invention, the internal circuit material for branching the trunk line and the branch line and interposing the electronic component is formed from a bus bar formed by punching one conductive metal plate. Therefore, the internal circuit material of the branch connector can be easily formed.

以下、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６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ＬＡＮ１００において、幹線１０１から支線１０２が分岐する分岐部１０３を形成するものである。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show an embodiment of the present invention, and a branch connector 10 forms a branch portion 103 where a branch line 102 branches from a main line 101 in an in-vehicle LAN 100 that performs CAN communication (differential transmission method). is there.

分岐コネクタ１０は、図５に示すように、コネクタハウジング１１の一側に幹線接続用の回路材２１と支線接続用の回路材２２からなるバスバー２０を収容する上下２段のバスバー収容部１２を備えると共に、他側にコネクタ嵌合部１６を備えている。前記バスバー収容部１２に収容した幹線接続用の回路材２１と支線接続用の回路材２２にそれぞれ設けた圧接端子部２０ｆ、２０ｅに抵抗器３０とコイル３１を並列に圧接接続して、幹線接続用の回路材２１と支線接続用の回路材２２との間にフィルタ回路３２を形成している。   As shown in FIG. 5, the branch connector 10 includes an upper and lower two-stage bus bar accommodating portion 12 that accommodates a bus bar 20 composed of a circuit material 21 for main line connection and a circuit material 22 for branch line connection on one side of the connector housing 11. And a connector fitting portion 16 on the other side. A resistor 30 and a coil 31 are connected in parallel to the pressure contact terminal portions 20f and 20e provided on the circuit material 21 for main line connection and the circuit material 22 for branch line connection accommodated in the bus bar accommodating portion 12, respectively. A filter circuit 32 is formed between the circuit material 21 for use and the circuit material 22 for connecting branch lines.

分岐コネクタ１０のコネクタハウジング１１は、図２及び図５に示すように、前記のように、一側にバスバー収容部１２を上下２段で設けると共に、他側にコネクタ嵌合部１６を設け、該コネクタ嵌合部１６と各バスバー収容部１２とを連通させている。
また、上段のバスバー収容部１２の上方に切断治具挿入用の開口１３を設ける一方、下段のバスバー収容部１２の下方に切断治具挿入用の開口１３を設け、これら開口１３を閉鎖するカバー１４を設けている。
さらに、コネクタ嵌合部１６には、コネクタ嵌合部１６に嵌合するコネクタ４０を係止するための係止突起１６ａをコネクタハウジング１１の内面より突出させて設けている。 As shown in FIGS. 2 and 5, the connector housing 11 of the branch connector 10 is provided with the bus bar housing portion 12 in two upper and lower stages on one side and the connector fitting portion 16 on the other side, as described above. The connector fitting portion 16 and each bus bar accommodating portion 12 are communicated with each other.
In addition, an opening 13 for inserting a cutting jig is provided above the upper bus bar housing portion 12, while an opening 13 for inserting a cutting jig is provided below the lower bus bar housing portion 12 to close these openings 13. 14 is provided.
Further, the connector fitting portion 16 is provided with a locking projection 16 a for locking the connector 40 fitted to the connector fitting portion 16 so as to protrude from the inner surface of the connector housing 11.

前記コネクタハウジング１１のバスバー収容部１２に挿入係止するバスバー２０は、１枚の導電性金属板を所要形状に打ち抜いて形成している。
詳細には、図３に示すように、バスバー２０は第１長尺部２０ａと第２長尺部２０ｂとを並設していると共に、これら第１、第２長尺部２０ａ、２０ｂの間を間隔をあけて切断用連結部２０ｃで連結している。第２長尺部２０ｂには、長さ方向に間隔をあけて第１長尺部２０ａと反対方向へ端子部２０ｄを突出させると共に、各端子部２０ｄの側部に一対の圧接タブからなる圧接端子部２０ｅをそれぞれ２組ずつ立設させて設け、かつ、各圧接端子部２０ｅと対向位置の第１長尺部２０ａに圧接端子部２０ｆを立設している。 The bus bar 20 to be inserted and locked into the bus bar accommodating portion 12 of the connector housing 11 is formed by punching one conductive metal plate into a required shape.
Specifically, as shown in FIG. 3, the bus bar 20 has a first long portion 20a and a second long portion 20b arranged in parallel, and a space between the first and second long portions 20a and 20b. Are connected by a connecting part 20c for cutting at intervals. The second elongate portion 20b has a terminal portion 20d protruding in the opposite direction to the first elongate portion 20a with an interval in the length direction, and a pressure contact comprising a pair of pressure contact tabs on the side of each terminal portion 20d. Two sets of the terminal portions 20e are provided upright, and the press contact terminal portions 20f are provided upright on the first long portions 20a opposite to the press contact terminal portions 20e.

前記バスバー２０の端子部２０ｄのうち、支線側と接続する端子部２０ｄ−２の側部に設けた圧接端子部２０ｅと圧接端子部２０ｆには、抵抗値１０Ωの抵抗器３０とコイル３１の両端のリード線３０ａ、３１ａを圧接接続しており、第１長尺部２０ａと第２長尺部２０ｂの端子部２０ｄ−２との間に抵抗器３０とコイル３１を並列接続で介設している。また、前記バスバー２０の端子部２０ｄのうち、幹線側と接続する端子部２０ｄ−１の側部に設けた圧接端子部２０ｅと圧接端子部２０ｆには抵抗器３０とコイル３１を圧接接続していない。   Of the terminal portion 20d of the bus bar 20, the press contact terminal portion 20e and the press contact terminal portion 20f provided on the side portion of the terminal portion 20d-2 connected to the branch line side are connected to both ends of a resistor 30 and a coil 31 having a resistance value of 10Ω. Lead wires 30a and 31a are press-connected, and a resistor 30 and a coil 31 are connected in parallel between the first elongated portion 20a and the terminal portion 20d-2 of the second elongated portion 20b. Yes. Further, of the terminal portion 20d of the bus bar 20, a resistor 30 and a coil 31 are press-connected to the press contact terminal portion 20e and the press contact terminal portion 20f provided on the side portion of the terminal portion 20d-1 connected to the main line side. Absent.

さらに、図４に示すように、前記切断用連結部２０ｃのうち、支線側と接続する端子部２０ｄ−２に対してバスバー２０の長さ方向の両側に設けた切断用連結部２０ｃを切断除去し、端子部２０ｄ−２と圧接端子部２０ｅからなる支線接続用の回路材２２を第１長尺部２０ａ側の幹線接続用の回路材２１から分離し、端子部２０ｄ−２と第１長尺部２０ａとは抵抗器３０とコイル３１の並列回路からなるフィルタ回路を介して接続している。また、隣接する各支線接続用の回路材２２は切断用連結部２０ｃを切断除去することにより分離している。
なお、図３及び図４では、幹線側と接続する端子部２０ｄ−１を１個、支線側と接続する端子部２０ｄ−２を２個図示しているが、本実施形態では１つのバスバー２０に２個の端子部２０ｄ−１と６個の端子部２０ｄ−２を設けている。 Further, as shown in FIG. 4, the cutting connecting portions 20 c provided on both sides of the bus bar 20 in the length direction with respect to the terminal portion 20 d-2 connected to the branch line side among the cutting connecting portions 20 c are cut and removed. Then, the branch line connecting circuit material 22 composed of the terminal portion 20d-2 and the pressure contact terminal portion 20e is separated from the main line connecting circuit material 21 on the first long portion 20a side, and the terminal portion 20d-2 and the first length are separated. The scale portion 20 a is connected via a filter circuit composed of a parallel circuit of a resistor 30 and a coil 31. Further, the adjacent branch line connecting circuit members 22 are separated by cutting and removing the cutting connecting portions 20c.
3 and 4, one terminal portion 20d-1 connected to the main line side and two terminal portions 20d-2 connected to the branch line side are shown, but in this embodiment, one bus bar 20 is shown. Two terminal portions 20d-1 and six terminal portions 20d-2 are provided.

前記コネクタハウジング１１のコネクタ嵌合部１６に嵌合するコネクタ４０のコネクタハウジング４１には、図５及び図６に示すように、上下２つの端子収容室４２を並設しており、該コネクタ４０は差動伝送線路を構成するのツイストペア電線端末に接続されるものである。   The connector housing 41 of the connector 40 that fits into the connector fitting portion 16 of the connector housing 11 is provided with two upper and lower terminal accommodating chambers 42 as shown in FIGS. Is connected to the twisted pair electric wire terminal of the differential transmission line.

幹線１０１に接続されるコネクタ４０Ａには、上方の端子収容室４２にツイストペア電線の第１通信線１０１Ａ（ＣＡＮ＿Ｈ）の端末に接続した端子５３Ａが挿入係止されている一方、下方の端子収容室４２にツイストペア電線の第２通信線１０１Ｂ（ＣＡＮ＿Ｌ）の端末に接続した端子５３Ａが挿入係止されている。
同様に、支線１０２に接続されるコネクタ４０Ｂには、上方の端子収容室４２にツイストペア電線の第１通信線１０２Ａ（ＣＡＮ＿Ｈ）の端末に接続した端子５３Ｂが挿入係止されている一方、下方の端子収容室４２にツイストペア電線の第２通信線１０２Ｂ（ＣＡＮ＿Ｌ）の端末に接続した端子５３Ｂが挿入係止されている。
また、コネクタハウジング４１の挿入側先端から弾性片４３を折り返して設けており、該弾性片４３の外面に分岐コネクタ１０のコネクタ嵌合部１６に設けた係止突起１６ａに係止させる係止突起４４を設けている。 In the connector 40A connected to the main line 101, the terminal 53A connected to the terminal of the first communication line 101A (CAN_H) of the twisted pair wire is inserted and locked in the upper terminal accommodating chamber 42, while the lower terminal accommodating chamber The terminal 53A connected to the terminal of the second communication line 101B (CAN_L) of the twisted pair electric wire is inserted and locked to 42.
Similarly, in the connector 40B connected to the branch line 102, the terminal 53B connected to the terminal of the first communication line 102A (CAN_H) of the twisted pair wire is inserted and locked in the upper terminal accommodating chamber 42, while the lower part A terminal 53B connected to the terminal of the second communication line 102B (CAN_L) of the twisted pair electric wire is inserted and locked in the terminal accommodating chamber 42.
Further, the elastic piece 43 is provided by folding back from the distal end on the insertion side of the connector housing 41, and the locking protrusion that is locked to the locking protrusion 16 a provided on the connector fitting portion 16 of the branch connector 10 on the outer surface of the elastic piece 43. 44 is provided.

前記コネクタ４０を分岐コネクタ１０のコネクタ嵌合部１６に所要の複数個（本実施形態ではコネクタ４０Ａを２個、コネクタ４０Ｂを６個）挿入し、コネクタ４０の係止突起４４を分岐コネクタ１０の係止突起１６ａに係止させてコネクタ４０を分岐コネクタ１０のコネクタ嵌合部１６内に嵌合している。このとき、分岐コネクタ１０のバスバー２０の端子部２０ｄ−１、２０ｄ−２とコネクタ４０Ａ、４０Ｂの端子５３Ａ、５３Ｂがそれぞれ雌雄嵌合接続され、幹線１０１と支線１０２の第１通信線１０１Ａ、１０２Ａ同士、第２通信線１０１Ｂ、１０２Ｂ同士がバスバー２０の第１長尺部２０ａを介して接続されて分岐部が形成され、支線１０２の分岐接続側には抵抗器３０とコイル３１を並列接続したフィルタ回路が介在される。   The required number of connectors 40 are inserted into the connector fitting portion 16 of the branch connector 10 (in this embodiment, two connectors 40A and six connectors 40B), and the locking projections 44 of the connector 40 are inserted into the branch connectors 10. The connector 40 is fitted into the connector fitting portion 16 of the branch connector 10 by being latched by the latching protrusion 16a. At this time, the terminal portions 20d-1 and 20d-2 of the bus bar 20 of the branch connector 10 and the terminals 53A and 53B of the connectors 40A and 40B are fitted and connected, respectively, and the first communication lines 101A and 102A of the trunk line 101 and the branch line 102 are connected. The second communication lines 101B and 102B are connected to each other via the first long portion 20a of the bus bar 20 to form a branch portion, and the resistor 30 and the coil 31 are connected in parallel to the branch connection side of the branch line 102. A filter circuit is interposed.

次に、前記分岐コネクタ１０の製造方法について説明する。
まず、導電性金属板を打ち抜いて図３に示す前記バスバー２０を設け、支線側と接続する端子部２０ｄ−２の側部に設けた圧接端子部２０ｅと２０ｆに抵抗器３０とコイル３１を圧接接続し、端子部２０ｄ−２と第１長尺部２０ａとの間に抵抗器３０とコイル３１を並列接続したフィルタ回路を形成する。
次いで、前記バスバー２０をコネクタハウジング１１のバスバー収容部１２に挿入係止し、開口１３を通して切断治具（図示せず）により所要の切断用連結部２０ｃを切断除去する。
次いで、切断除去した切断用連結部２０ｃを開口１３を通してバスバー収容部１２から取り出し、開口１３にカバー１４を取り付けて開口１３を閉鎖する。 Next, a method for manufacturing the branch connector 10 will be described.
First, the bus bar 20 shown in FIG. 3 is provided by punching out a conductive metal plate, and the resistor 30 and the coil 31 are pressed against the press contact terminal portions 20e and 20f provided on the side portion of the terminal portion 20d-2 connected to the branch line side. The filter circuit which connected and connected the resistor 30 and the coil 31 in parallel between the terminal part 20d-2 and the 1st elongate part 20a is formed.
Next, the bus bar 20 is inserted and locked into the bus bar accommodating portion 12 of the connector housing 11, and a required cutting connecting portion 20 c is cut and removed through the opening 13 by a cutting jig (not shown).
Next, the cutting connecting portion 20 c that has been cut and removed is taken out from the bus bar accommodating portion 12 through the opening 13, and a cover 14 is attached to the opening 13 to close the opening 13.

前記構成によれば、通信回路の幹線から分岐する支線回路上に抵抗器３０とコイル３１を並列接続したフィルタ回路を形成することができ、該フィルタ回路により分岐部で生じる信号の反射を早期に減衰させることができる。
また、前記抵抗器３０とコイル３１の両端のリード線３０ａ、３１ａにバスバー２０の圧接端子部２０ｅ、２１ｅをそれぞれ圧接接続しているため、抵抗器３０、コイル３１を基板に実装する煩雑な工程が不要となると共に基板をコネクタハウジング内に収容する必要もなくなり、分岐コネクタを小型化できると共に低コスト化を図ることができる。
また、電子部品を基板に実装しないため、実装工程における高温化による電子部品の悪影響もない。 According to the above configuration, it is possible to form the filter circuit in which the resistor 30 and the coil 31 are connected in parallel on the branch circuit branched from the trunk line of the communication circuit, and to quickly reflect the signal generated at the branching portion by the filter circuit. Can be attenuated.
Further, since the press contact terminal portions 20e and 21e of the bus bar 20 are press-connected to the lead wires 30a and 31a at both ends of the resistor 30 and the coil 31, respectively, a complicated process of mounting the resistor 30 and the coil 31 on the substrate. Is unnecessary, and it is not necessary to accommodate the board in the connector housing, so that the branch connector can be miniaturized and the cost can be reduced.
Further, since the electronic component is not mounted on the substrate, there is no adverse effect of the electronic component due to the high temperature in the mounting process.

さらに、前記第１、第２長尺部２０ａ、２０ｂ、端子部２０ｄ、圧接端子部２０ｅ、２０ｆおよび切断用連結部２０ｃを１枚の導電性金属板を打ち抜いて設けたバスバー２０より形成しているため、分岐コネクタの内部回路材を容易に形成することができる。   Further, the first and second elongated portions 20a and 20b, the terminal portion 20d, the pressure contact terminal portions 20e and 20f, and the cutting connecting portion 20c are formed by a bus bar 20 provided by punching out one conductive metal plate. Therefore, the internal circuit material of the branch connector can be easily formed.

なお、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を接続しているため、バスバー２０を２組設けているが、ペア電線以外の電線を接続する場合には、バスバーを１組あるいは３組以上設けてもよい。
また、分岐コネクタ１０に接続するペア電線はツイストペア電線に限らず、シールドツイストペア電線等であってもよい。
さらに、本実施形態ではコネクタハウジング１１に切断治具挿入用の開口１３を設けているが、コネクタハウジングを上面全面が開口の本体とカバーにより構成し、バスバー２０の切断用連結部２０ｃを切断した後、本体とカバーを結合して、バスバー２０をコネクタハウジング内に収容する構成としてもよい。 In the present embodiment, two pairs of bus bars 20 are provided because the twisted pair electric wires constituting the differential transmission line are connected to the branch connector 10. However, when connecting electric wires other than the pair electric wires, One set or three or more sets may be provided.
Moreover, the pair electric wire connected to the branch connector 10 is not limited to the twisted pair electric wire but may be a shielded twisted pair electric wire or the like.
Further, in this embodiment, the connector housing 11 is provided with an opening 13 for inserting a cutting jig. However, the connector housing is constituted by a main body and a cover whose entire upper surface is open, and the cutting connecting portion 20c of the bus bar 20 is cut. Thereafter, the main body and the cover may be combined to accommodate the bus bar 20 in the connector housing.

本発明の分岐コネクタにより形成した分岐部を示す概略図である。It is the schematic which shows the branch part formed with the branch connector of this invention. コネクタハウジングの斜視図である。It is a perspective view of a connector housing. 切断用連結部を切断する前のバスバーを示す図面である。It is drawing which shows the bus bar before cut | disconnecting the connection part for cutting. 切断用連結部を切断した後のバスバーを示す図面である。It is drawing which shows the bus bar after cut | disconnecting the connection part for cutting. 分岐コネクタに支線端末に接続されたコネクタを嵌合した状態を示す断面図である。It is sectional drawing which shows the state which fitted the connector connected to the branch line terminal to the branch connector. 分岐コネクタに幹線端末に接続されたコネクタを嵌合した状態を示す断面図である。It is sectional drawing which shows the state which fitted the connector connected to the trunk line terminal to the branch connector. 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
１２ バスバー収容部
２０ バスバー
２０ａ 第１長尺部
２０ｂ 第２長尺部
２０ｃ 切断用連結部
２０ｄ−１ 幹線側と接続される端子部
２０ｄ−２ 支線側と接続される端子部
２０ｅ、２０ｆ 圧接端子部
２１ 幹線接続用の回路材
２２ 支線接続用の回路材
３０ 抵抗器
３１ コイル
３２ フィルタ回路
４０ コネクタ
５３ 端子
１００ 車載ＬＡＮ
１０１Ａ 幹線の第１通信線
１０１Ｂ 幹線の第２通信線
１０２Ａ 支線の第１通信線
１０２Ｂ 支線の第２通信線
１０３ 分岐部 DESCRIPTION OF SYMBOLS 10 Branch connector 11 Connector housing 12 Bus bar accommodating part 20 Bus bar 20a 1st elongate part 20b 2nd elongate part 20c Connection part 20d-1 for cutting Terminal part 20d-2 connected with the trunk line side Terminal connected with the branch line side 20e, 20f Pressure contact terminal portion 21 Circuit material for connecting main line 22 Circuit material for connecting branch line 30 Resistor 31 Coil 32 Filter circuit 40 Connector 53 Terminal 100 In-vehicle LAN
101A trunk first communication line 101B trunk second communication line 102A branch first communication line 102B branch second communication line 103 branching section

Claims (2)

幹線から複数の支線を分岐接続する位置に設ける分岐コネクタの製造方法であって、
導電性金属板を打ち抜いてバスバーを設け、
前記バスバーは幹線側の導体と接続させる第１長尺部と前記複数の支線側の導体と接続させる第２長尺部とを並設していると共に、これら第１、第２長尺部の間を間隔をあけて切断用連結部で連結し、
前記第２長尺部に長さ方向に間隔をあけて前記第１長尺部と反対方向へ支線接続用の端子部を突出させると共に、各支線接続用の端子部の側部に圧接端子部を立設させ、かつ、各圧接端子部と対向位置の第１長尺部に圧接端子部を立設し、
前記第１、第２長尺部の対向する圧接端子部に電子部品の両端のリード線を圧接接続して、前記幹線側と接続する第１長尺部と各支線側と接続する端子部とを前記電子部品を介在させて接続しておき、
前記バスバーをコネクタハウジング内に収容固定した後に、前記切断用連結部を切断除去すると共に、前記第２長尺部の前記各支線側に接続される端子部と圧接端子部とを１組の支線接続用回路材として、隣接する各組の支線接続用回路材の間の前記切断用連結部も切断除去していることを特徴とする分岐コネクタの製造方法。 A method of manufacturing a branch connector provided at a position where a plurality of branch lines are branched and connected from a trunk line,
Punching a conductive metal plate and providing a bus bar,
The bus bar is provided with a first elongated portion connected to the conductor on the main line side and a second elongated portion connected to the conductors on the plurality of branch lines side by side, and the first and second elongated portions are connected to each other. Connect with a connecting part for cutting at intervals,
A terminal portion for connecting a branch line protrudes in a direction opposite to the first long portion with a distance in the length direction from the second long portion, and a pressure contact terminal portion on a side portion of each terminal portion for connecting the branch line And erected the pressure contact terminal portion on the first elongated portion opposite to each pressure contact terminal portion,
A first long portion connected to the main line side and a terminal portion connected to each branch line side by press-connecting the lead wires at both ends of the electronic component to the opposite pressure contact terminal portions of the first and second long portions; Are connected via the electronic components,
After the bus bar is accommodated and fixed in the connector housing, the cutting connecting portion is cut and removed, and the terminal portion connected to each branch line side of the second elongated portion and the press contact terminal portion are combined into a set of branch lines. A method for manufacturing a branch connector, characterized in that, as a connection circuit material, the cutting connecting portions between adjacent pairs of branch line connection circuit materials are also cut and removed. 請求項１に記載の方法によって製造され、幹線接続用の回路材と支線接続用の回路材とは１枚のバスバーを切断分離して設けており、
コネクタハウジング内に、
幹線側と導通される第１長尺部と、該第１長尺部の長さ方向に間隔をあけて設けた圧接端子部とを備えたバスバーからなる前記幹線接続用の回路材と、
前記圧接端子部と対向位置に配置された圧接端子部と、該対向位置に配置された各圧接端子部の側部に連続して設けた支線接続用の端子部とを備えたバスバーからなる前記支線接続用の回路材と、
前記幹線接続用の回路材と前記支線接続用の回路材の圧接端子部との間に、両端のリード線を圧接接続させて介在させた電子部品と、
を備えていることを特徴とする分岐コネクタ。 The circuit material for main line connection and the circuit material for branch line connection manufactured by the method according to claim 1 are provided by cutting and separating one bus bar,
In the connector housing,
A circuit material for connecting the main line comprising a bus bar including a first long portion that is electrically connected to the main line side, and a press-contact terminal portion provided at intervals in the length direction of the first long portion;
The consisting of the bus bar with the pressure contact terminal portion disposed on a position facing the press-connecting terminal portion and a terminal portion for branch connection provided continuously to the side of each press contact terminal portion disposed on the counter position Circuit material for connecting branch lines;
Between the circuit material for connecting the main line and the press contact terminal portion of the circuit material for connecting the branch line, an electronic component interposed by press-connecting lead wires at both ends,
A branch connector comprising:

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