JP4071311B2

JP4071311B2 - Female terminal structure

Info

Publication number: JP4071311B2
Application number: JP34212396A
Authority: JP
Inventors: 純一小野
Original assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Current assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Priority date: 1996-12-20
Filing date: 1996-12-20
Publication date: 2008-04-02
Anticipated expiration: 2016-12-20
Also published as: JPH10189107A

Description

【０００１】
【発明の属する技術分野】
本発明は、挿入作業が簡単で、かつ部品点数が増加することなく、雄端子を低入力で挿入できる雌端子の構造に関する。
【０００２】
【従来の技術】
従来、図６（Ａ）から（Ｃ）に示すように、雌端子１に雄端子（又はプリント基板のプリント配線の端末端子部）２を挿入して、両端子１，２を電気的に接続するものが提案されている（特公昭６２−９９８８号公報参照）。
【０００３】
上記雌端子１は、側面視で、直線状の上縁部１ｐを有する固定接点部１ａと、凸形状部１ｒを形成したバネ接点部１ｂとを備え、凸形状部１ｒには、斜めの斜状面１ｓ，１ｔと、斜状面１ｓ，１ｔが交わる下頂部１ｑとが形成されていて、上縁部１ｐと凸形状部１ｒの下頂部１ｑとの間に所定の初期バネクリアランスａを設定して、固定接点部１ａとバネ接点部１ｂとの間に、固定接点部１ａの長手方向Ａから雄端子２を挿入したときに、雄端子２の一面２ａが固定接点部１ａの上縁部１ｐに接触するとともに、バネ接点部１ｂがバネ力に抗して押し開かれながら雄端子２の他面２ｂが凸形状部１ｒの下頂部１ｑに接触するようになる。
【０００４】
そして、雄端子２がプリント基板のプリント配線の端末雄端子部である場合、プリント基板の厚みにはバラツキが有るから、上記初期バネクリアランスａを狭くしておかないと、所定の接触圧が得られないことがある。
【０００５】
また、図７（Ａ）から（Ｃ）に示すように、箱形の雌端子１に雄端子２を挿入するときも同様の問題がある。
【０００６】
【発明が解決しようとする課題】
しかしながら、上記初期バネクリアランスａを狭くすると、図６（Ｂ）のように、雄端子２の挿入直後に一度でバネ接点部１ｂを雄端子２の挿入後のバネクリアランスｃに押し開くとき、図６（Ｄ）のように、雄端子２の挿入力が一気にピークになるので、挿入作業が煩わしいという問題がある。
【０００７】
なお、挿入力を低減するために、レバーを利用するものやボルト締め力を利用するものが提案されているが、いずれも部品点数が増加したり、挿入作業が繁雑である。
【０００８】
本発明は、上記従来の問題を解決するためになされたもので、挿入作業が簡単で、かつ部品点数が増加することなく、雄端子を低挿入力で挿入できる雌端子の構造を提供することを目的とするものである。
【０００９】
【課題を解決するための手段】
上記課題を解決するために、本発明は、側面視で、直線状の上縁部１ｐを有する固定接点部１ａと、凸形状部１ｒを形成したバネ接点部１ｂとを備え、凸形状部１ｒには、斜めの斜状面１ｓ，１ｔと、斜状面１ｓ，１ｔが交わる下頂部１ｑとが形成されていて、上縁部１ｐと凸形状部１ｒの下頂部１ｑとの間に所定の初期バネクリアランスａを設定して、固定接点部１ａとバネ接点部１ｂとの間に、固定接点部１ａの長手方向Ａから雄端子２を挿入したときに、雄端子２の一面２ａが固定接点部１ａの上縁部１ｐに接触するとともに、バネ接点部１ｂがバネ力に抗して押し開かれながら雄端子２の他面２ｂが凸形状部１ｒの下頂部１ｑに接触するようになった雌端子１において、上記雌端子１は、上下方向Ｂに傾動可能に設けられる一方、固定接点部１ａの上縁部１ｐよりも挿入側の手前に、略Ｖ字形状の斜面１ｃ，１ｄを有する凹部１ｅを形成し、この凹部１ｅの挿入方向の手前の斜面１ｃとこれに対向する凸形状部１ｒの斜状面１ｓとの間、および凹部１ｅの挿入方向の奥の斜面１ｄとこれに対向する凸形状部１ｒの斜状面１ｔとの間が、初期バネクリアランスａと雄端子２の挿入後のバネクリアランスｃとの略中間程度のバネクリアランスｂに設定して、雄端子２の挿入直後に、雄端子２の他面２ｂで押し開き始められるバネ接点部１ｂの反力で、雄端子２の一面２ａに凹部１ｅの手前の斜面１ｃが接触するように、雌端子１全体が傾動し、さらに雄端子２の挿入で、雄端子２の先端２ｃが凹部１ｅの奥の斜面１ｄに当接して、雌端子１全体が元に傾動しながら、雄端子２の一面２ａが、凹部１ｅの奥の斜面１ｄよりも奥の固定接点部１ａの上縁部１ｐに接触し始め、つづく雄端子２の挿入で、雌端子１全体が完全に元に傾動されて、雄端子２の一面２ａが固定接点部１ａの上縁部１ｐに完全に接触するようにしたことを特徴とする雌端子の構造を提供するものである。
【００１０】
請求項２のように、雌端子をコネクタのハウジング内で傾動可能に保持して、固定接点部とバネ接点部は、雄端子の挿入方向に移動しないように支持すると共に、固定接点部は、可撓部を介して支持する構成とすることができる。
【００１１】
【発明の効果】
本発明によれば、雌端子１に雄端子２を挿入すると、挿入直後には、雄端子２の他面２ｂで押し開き始められるバネ接点部１ｂの反力で、雄端子２の一面２ａに凹部１ｅの手前の斜面１ｃが接触するように、雌端子１全体が傾動される。この挿入直後には、初期バネクリアランスａよりも広いバネクリアランスｂに雄端子２を真っ直ぐに挿入でき、かつ、挿入後のバネクリアランスｃとの略中間程度のバネクリアランスｄに押し開くだけであるから、挿入力が低くなる。さらに、雄端子２を挿入すると、雄端子２の先端２ｃが凹部１ｅの奥の斜面１ｄに当接して、雌端子１全体が元に傾動されながら、雄端子２の一面２ａが固定接点部１ａの上縁部１ｐに接触し始める。このときにも、バネクリアランスｄよりもやや広いバネクリアランスｅに押し開くだけであるから、挿入力が低くなる。つづいて、雄端子２を挿入すると、雌端子１全体が完全に元に傾動されて、雄端子２の一面２ａが固定接点部１ａの上縁部１ｐに完全に接触する。このときにも、バネクリアランスｅよりもやや広い挿入後のバネクリアランスｃに押し開くだけであるから、挿入力が低くなる。
【００１２】
これにより、雄端子の挿入力が数回に分割されることから、従来のように挿入力が一気にピークにならず、挿入力が平均化されて、雄端子を低挿入力で挿入できるようになる。
また、従来のようにレバーを利用したりボルト締め力を利用したりしないので、挿入作業が簡単になると共に、部品点数が増加することもない。
【００１３】
請求項２のように、雌端子をコネクタのハウジング内で傾動可能に保持して、固定接点部とバネ接点部は、雄端子の挿入方向に移動しないように支持すると共に、固定接点部は、可撓部を介して支持する構成とすれば、雌端子がコネクタのハウジング内で傾動でき、かつ、不必要に移動しないように保持及び支持できるようになる。
【００１４】
【発明の実施の態様】
以下、本発明の実施の形態を図面を参照して詳細に説明する。
【００１５】
なお、図６以下の従来技術と同一構成・作用の箇所は同一番号を付して詳細な説明は省略する。
【００１６】
図５（Ａ）に示す例は、基板３にねじ（図２参照）４で固定されたカートリッジコネクタ５Ａのハウジング５ａ内に雌端子１が収容され、この雌端子１にプリント基板６のプリント配線の端末の雄端子部２’を挿入して、両端子１，２’を電気的に接続するようにしている。
【００１７】
また、図５（Ｂ）に示す例は、ワイヤーハーネスＷ／Ｈを接続したコネクタ５Ｂのハウジング５ａ内に雌端子１が収容され、この雌端子１を電気接続箱７のプリント基板６のプリント配線の端末の雄端子部２’に挿入して、両端子１，２’を電気的に接続するようにしている。
【００１８】
図１及び図３（Ａ）は、打ち抜き雌端子１の基本形状であり、側面視で、直線状の上縁部１ｐを有する固定接点部１ａと、凸形状部１ｒを形成したバネ接点部１ｂとを備え、凸形状部１ｒには、斜めの斜状面１ｓ，１ｔと、斜状面１ｓ，１ｔが交わる下頂部１ｑとが形成されていて、図１（Ａ）のように、上縁部１ｐと凸形状部１ｒの下頂部１ｑとの間に所定の初期バネクリアランスａを設定して、図１（Ｄ）のように、固定接点部１ａとバネ接点部１ｂとの間に、固定接点部１ａの長手方向Ａから雄端子２（２´）を挿入したときに、雄端子２の一面２ａが固定接点部１ａの上縁部１ｐに接触するとともに、バネ接点部１ｂがバネ力に抗して押し開かれながら雄端子２の他面２ｂが凸形状部１ｒの下頂部１ｑに接触するようになる。なお、ここまでの形状の説明は、従来（図６参照）の雌端子１と同じである。
【００１９】
図１（Ａ）のように、上記雌端子１は、上下方向Ｂに傾動可能に設けられる一方、固定接点部１ａの上縁部１ｐよりも挿入側の手前に、略Ｖ字形状の斜面１ｃ，１ｄを有する凹部１ｅを形成する。この凹部１ｅの挿入方向の手前の斜面１ｃとこれに対向する凸形状部１ｒの斜状面１ｓとの間、および凹部１ｅの挿入方向の奥の斜面１ｄとこれに対向する凸形状部１ｒの斜状面１ｔとの間が、初期バネクリアランスａと雄端子２の挿入後のバネクリアランスｃとの略中間程度のバネクリアランスｂに設定されている（ａ＜ｂ＜ｃ）。
【００２０】
上記のように雌端子１を構成すれば、雄端子２の挿入前の雌端子１は、図１（Ａ）の状態に保持されている。
【００２１】
そして、雌端子１に雄端子２を挿入すると、挿入直後には、図１（Ｂ）のように、雄端子２の他面２ｂで押し開き始められるバネ接点部１ｂの反力で、雄端子２の一面２ａに凹部１ｅの手前の斜面１ｃが接触するように、雌端子１全体が傾動される。
【００２２】
この挿入直後には、初期バネクリアランスａよりも広いバネクリアランスｂに雄端子２を真っ直ぐに挿入でき、かつ、挿入後のバネクリアランスｃとの略中間程度のバネクリアランスｄに押し開くだけであるから、挿入力が低くなる。
【００２３】
さらに、雄端子２を挿入すると、図１（Ｃ）のように、雄端子２の先端２ｃが凹部１ｅの奥の斜面１ｄに当接して、雌端子１全体が元に傾動されながら、雄端子２の一面２ａが、凹部１ｅの奥の斜面１ｄよりも奥の固定接点部１ａの上縁部１ｐに接触し始める。このときにも、バネクリアランスｄよりもやや広いバネクリアランスｅに押し開くだけであるから、挿入力が低くなる。
【００２４】
つづいて、雄端子２を挿入すると、図１（Ｄ）のように、雌端子１全体が完全に元に傾動されて、雄端子２の一面２ａが固定接点部１ａの上縁部１ｐに完全に接触する。このときにも、バネクリアランスｅよりもやや広い挿入後のバネクリアランスｃに押し開くだけであるから、挿入力が低くなる。
【００２５】
上記のように、雄端子２の挿入力が数回に分割されることから、従来のように挿入力が一気にピークにならず、図３（Ｂ）のように、挿入力が平均化されて、雄端子２を低挿入力で挿入できるようになる。また、従来のようにレバーを利用したりボルト締め力を利用したりしないので、挿入作業が簡単になると共に、部品点数が増加することもない。
【００２６】
図２は、打ち抜き雌端子１をカートリッジコネクタ５Ａに収容するときの具体的な形状である。なお、上記コネクタ５Ｂに収容するときも同じである。
【００２７】
上記カートリッジコネクタ５Ａのハウジング５ａは、インナーハウジング５ｂとアウターハウジング５ｃとで構成されて、インナーハウジング５ｂをアウターハウジング５ｃに嵌入し、インナーハウジング５ｂのロック爪５ｄをアウターハウジング５ｃのロック穴５ｅに係止して、両ハウジング５ｂ，５ｃを一体的に組み立てる。
【００２８】
上記インナーハウジング５ｂには、雌端子１が傾動できる余裕を有するキャビティ５ｆが設けられ、このキャビティ５ｆに雌端子１が収容される。
【００２９】
上記雌端子１の固定接点部１ａの先端には、逆Ｕ字状に折り返した細幅の折り返し部１ｆを一体的に形成し、この折り返し部１ｆの中間部１ｇをインナーハウジング５ｂの圧入穴５ｇに圧入する。
【００３０】
上記折り返し部１ｆの後端部１ｈは基板３を挿入させて、基板３のプリント配線等に半田付けして固定する。
【００３１】
また、折り返し部１ｆの中間部１ｇと固定接点部１ａとの間は、波状に湾曲させてた可撓部１ｉに形成して、この可撓部１ｉで雌端子１全体を図２（Ｂ）の傾動状態から図２（Ａ）（Ｃ）の非傾動状態に戻るように付勢している。
【００３２】
上記可撓部１ｉと固定接点部１ａとの間のＵ字状部１ｊと、バネ接点部１ｂの先端のＵ字状部１ｋとは、インナーハウジング５ｂの先端部に係止されていて、雌端子１が雄端子２の挿入方向に移動しないように保持している。
【００３３】
上記のように雌端子１をコネクタ５Ａに収容すれば、雄端子２の挿入前の雌端子１は、図２（Ａ）の状態に保持されている。
【００３４】
そして、雌端子１に雄端子２を挿入すると、挿入直後には、図２（Ｂ）のように、雄端子２の他面２ｂで押し開き始められるバネ接点部１ｂの反力で、雄端子２の一面２ａに凹部１ｅの手前の斜面１ｃが接触するように、雌端子１全体がキャビティ５ｆ内で傾動される。
【００３５】
さらに、雄端子２を挿入すると、雄端子２の先端２ｃが凹部１ｅの奥の斜面１ｄに当接して、雌端子１全体が可撓部１ｆの付勢力で元に傾動されながら、雄端子２の一面２ａが固定接点部１ａの上縁部１ｐに接触し始める。
【００３６】
つづいて、雄端子２を挿入すると、図２（Ｃ）のように、雌端子１全体が完全に元に傾動されて、雄端子２の一面２ａが固定接点部１ａの上縁部１ｐに完全に接触する。
【００３７】
上記実施の形態では、打ち抜き雌端子１であったが、図４（Ａ）から（Ｃ）に示すように、箱形の雌端子１に雄端子２を挿入するときも同様の構成を採用することができる。
【図面の簡単な説明】
【図１】本発明の打ち抜き雌端子であり、（Ａ）は雄端子の挿入前の側面図、（Ｂ）は挿入直後の側面図、（Ｃ）は挿入途中の側面図、（Ｄ）は挿入完了時の側面図である。
【図２】打ち抜き雌端子を収容したカートリッジコネクタであり、（Ａ）は雄端子の挿入前の側面断面図、（Ｂ）は挿入直後の側面断面図、（Ｃ）は挿入完了時の側面断面図である。
【図３】（Ａ）は打ち抜き雌端子の斜視図、（Ｂ）は本発明の雌端子の挿入力と挿入ストロークとの関係のグラフである。
【図４】本発明の箱形雌端子であり、（Ａ）は雄端子の挿入前の側面図、（Ｂ）は挿入直後の側面図、（Ｃ）は挿入完了時の側面図である。
【図５】（Ａ）は雌端子を収容したカートリッジコネクタとプリント基板の斜視図、（Ｂ）は雌端子を収容したコネクタと電気接続箱の斜視図である。
【図６】従来の打ち抜き雌端子であり、（Ａ）は雄端子の挿入前の側面図、（Ｂ）は挿入直後の側面図、（Ｃ）は挿入完了時の側面図、（Ｄ）は雌端子の挿入力と挿入ストロークとの関係のグラフである。
【図７】従来の箱形雌端子であり、（Ａ）は雄端子の挿入前の側面図、（Ｂ）は挿入直後の側面図、（Ｃ）は挿入完了時の側面図である。
【符号の説明】
１雌端子
１ａ固定接点部
１ｂバネ接点部
１ｃ，１ｄ斜面
１ｉ可撓部
１ｊ，１ｋＵ字状部
２’ 雄端子
２ａ一面
２ｂ他面
５Ａ，５Ｂコネクタ
５ａハウジング
６プリント基板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a female terminal in which a male terminal can be inserted with a low input without being increased in the number of parts and with a simple insertion operation.
[0002]
[Prior art]
Conventionally, as shown in FIGS. 6A to 6C, a male terminal (or a terminal portion of a printed wiring on a printed circuit board) 2 is inserted into a female terminal 1, and both terminals 1 and 2 are electrically connected. Have been proposed (see Japanese Patent Publication No. 62-9988).
[0003]
The female terminal 1 is a side view, includes a fixed contact portion 1a having a straight upper edge 1p, and a spring contact portion 1b formed with convex portions 1r, the convex portion 1r, diagonal oblique setting Jo surface 1s, and 1t, slant surface 1s, 1t is not a lower top 1q is formed to intersect the predetermined initial spring clearance a between the lower apex 1q of the upper edge portion 1p and convex portion 1r Then, when the male terminal 2 is inserted from the longitudinal direction A of the fixed contact portion 1a between the fixed contact portion 1a and the spring contact portion 1b, the one surface 2a of the male terminal 2 is the upper edge portion of the fixed contact portion 1a. The other surface 2b of the male terminal 2 comes into contact with the lower top portion 1q of the convex portion 1r while the spring contact portion 1b is pushed open against the spring force.
[0004]
When the male terminal 2 is a terminal male terminal portion of the printed wiring of the printed circuit board, there is a variation in the thickness of the printed circuit board. Therefore, if the initial spring clearance a is not narrowed, a predetermined contact pressure is obtained. It may not be possible.
[0005]
Further, as shown in FIGS. 7A to 7C, the same problem occurs when the male terminal 2 is inserted into the box-shaped female terminal 1.
[0006]
[Problems to be solved by the invention]
However, when the initial spring clearance a is narrowed, as shown in FIG. 6B, when the spring contact portion 1b is pushed once into the spring clearance c after the male terminal 2 is inserted, immediately after the male terminal 2 is inserted, As shown in FIG. 6 (D), since the insertion force of the male terminal 2 peaks at a stretch, there is a problem that the insertion operation is troublesome.
[0007]
In order to reduce the insertion force, those using a lever and those using a bolt tightening force have been proposed. However, both increase the number of parts and make the insertion work complicated.
[0008]
The present invention has been made to solve the above-described conventional problems, and provides a structure of a female terminal in which a male terminal can be inserted with a low insertion force, with a simple insertion operation and without increasing the number of parts. It is intended.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention includes a fixed contact portion 1a having a linear upper edge portion 1p and a spring contact portion 1b formed with a convex shape portion 1r in a side view, and the convex shape portion 1r. Are formed with an oblique oblique surface 1s, 1t and a lower top portion 1q where the oblique surfaces 1s, 1t intersect, and a predetermined top portion 1q between the upper edge portion 1p and the convex portion 1r. When the initial spring clearance a is set and the male terminal 2 is inserted from the longitudinal direction A of the fixed contact portion 1a between the fixed contact portion 1a and the spring contact portion 1b, the one surface 2a of the male terminal 2 is fixed contact While contacting the upper edge portion 1p of the portion 1a, the other surface 2b of the male terminal 2 comes into contact with the lower top portion 1q of the convex portion 1r while the spring contact portion 1b is pushed open against the spring force. in the female terminal 1, while the female terminal 1 is provided tiltably in the vertical direction B, the solid Convex in front of the upper edge the insertion side of the 1p contact portion 1a, the slope 1c of the V-shape, a recess 1e having 1d, facing the slope 1c of the front in the insertion direction of the recess 1e in this The initial spring clearance a and the male terminal 2 are between the inclined surface 1s of the shape portion 1r and between the inclined surface 1d in the insertion direction of the concave portion 1e and the inclined surface 1t of the convex portion 1r opposite thereto. With the reaction force of the spring contact portion 1b that starts to be pushed open on the other surface 2b of the male terminal 2 immediately after insertion of the male terminal 2, The entire female terminal 1 is tilted so that the inclined surface 1c in front of the recess 1e contacts the one surface 2a of the male terminal 2, and when the male terminal 2 is inserted, the tip 2c of the male terminal 2 is inclined 1d behind the recess 1e. , The female terminal 1 as a whole is tilted while the male terminal 2 Surface 2a is than the slope 1d at the back of the recess 1e starts to contact with the upper edge 1p at the back of the fixed contact portion 1a, in the insertion of the subsequent male terminal 2, the entire female terminal 1 is tilted completely original, The structure of the female terminal is provided in which the one surface 2a of the male terminal 2 is in complete contact with the upper edge portion 1p of the fixed contact portion 1a.
[0010]
As in claim 2, the female terminal is tiltably held in the housing of the connector, and the fixed contact portion and the spring contact portion are supported so as not to move in the insertion direction of the male terminal. It can be set as the structure supported via a flexible part.
[0011]
【The invention's effect】
According to the present invention, when the male terminal 2 is inserted into the female terminal 1, immediately after the insertion, the reaction force of the spring contact portion 1b that starts to be pushed open by the other surface 2b of the male terminal 2 is applied to the one surface 2a of the male terminal 2. The entire female terminal 1 is tilted so that the slope 1c in front of the recess 1e contacts. Immediately after this insertion, the male terminal 2 can be inserted straight into the spring clearance b wider than the initial spring clearance a, and it can only be pushed open to the spring clearance d approximately in the middle of the spring clearance c after insertion. , The insertion force is low. Further, when the male terminal 2 is inserted, the tip 2c of the male terminal 2 comes into contact with the inclined surface 1d at the back of the recess 1e, and the entire surface of the female terminal 1 is tilted, while the one surface 2a of the male terminal 2 is fixed to the fixed contact portion 1a. Begins to contact the upper edge 1p. Also at this time, the insertion force is reduced because the spring clearance e is merely pushed open to a spring clearance e slightly wider than the spring clearance d. Subsequently, when the male terminal 2 is inserted, the entire female terminal 1 is tilted completely and the one surface 2a of the male terminal 2 is completely in contact with the upper edge portion 1p of the fixed contact portion 1a. Also at this time, the insertion force is lowered because it is merely pushed open to the spring clearance c after insertion which is slightly wider than the spring clearance e.
[0012]
As a result, the insertion force of the male terminal is divided into several times, so that the insertion force does not peak at once as in the past, the insertion force is averaged, and the male terminal can be inserted with a low insertion force. Become.
Further, since the lever is not used or the bolt tightening force is not used as in the prior art, the insertion work is simplified and the number of parts is not increased.
[0013]
As in claim 2, the female terminal is tiltably held in the housing of the connector, and the fixed contact portion and the spring contact portion are supported so as not to move in the insertion direction of the male terminal. If the structure is supported via the flexible part, the female terminal can be tilted within the housing of the connector and can be held and supported so as not to move unnecessarily.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0015]
Note that the same reference numerals are assigned to the same components and parts as those in the prior art shown in FIG. 6 and subsequent detailed description.
[0016]
In the example shown in FIG. 5A, the female terminal 1 is accommodated in the housing 5a of the cartridge connector 5A fixed to the board 3 with screws (see FIG. 2) 4, and the printed wiring of the printed board 6 is accommodated in the female terminal 1. The terminal 2 'of the terminal is inserted to electrically connect both terminals 1 and 2'.
[0017]
In the example shown in FIG. 5B, the female terminal 1 is accommodated in the housing 5a of the connector 5B to which the wire harness W / H is connected, and this female terminal 1 is printed on the printed circuit board 6 of the electrical connection box 7. The terminals are inserted into the male terminal portion 2 ′ of the terminal, and both terminals 1 and 2 ′ are electrically connected.
[0018]
FIGS. 1 and 3A are basic shapes of the punched female terminal 1, and a fixed contact portion 1a having a linear upper edge portion 1p and a spring contact portion 1b having a convex shape portion 1r in a side view. The projecting portion 1r is formed with oblique oblique surfaces 1s, 1t and a lower top portion 1q where the oblique surfaces 1s, 1t intersect, as shown in FIG. A predetermined initial spring clearance a is set between the portion 1p and the lower top portion 1q of the convex portion 1r, and the fixed contact portion 1a and the spring contact portion 1b are fixed as shown in FIG. When the male terminal 2 (2 ') is inserted from the longitudinal direction A of the contact portion 1a, one surface 2a of the male terminal 2 comes into contact with the upper edge portion 1p of the fixed contact portion 1a, and the spring contact portion 1b becomes spring force. The other surface 2b of the male terminal 2 comes into contact with the lower top portion 1q of the convex portion 1r while being pushed open. The description of the shape so far is the same as the conventional female terminal 1 (see FIG. 6).
[0019]
As shown in FIG. 1 (A), the female terminal 1 is provided so as to be tiltable in the vertical direction B. On the other hand, the inclined surface 1c having a substantially V-shape is provided in front of the upper edge portion 1p of the fixed contact portion 1a. , 1d is formed. Between the inclined surface 1c in the insertion direction of the concave portion 1e and the inclined surface 1s of the convex portion 1r facing this, and the inclined surface 1d in the insertion direction of the concave portion 1e and the convex portion 1r facing this. The space between the inclined surface 1t is set to a spring clearance b that is approximately in the middle between the initial spring clearance a and the spring clearance c after insertion of the male terminal 2 (a <b <c).
[0020]
If the female terminal 1 is comprised as mentioned above, the female terminal 1 before insertion of the male terminal 2 will be hold | maintained in the state of FIG. 1 (A).
[0021]
Then, when the male terminal 2 is inserted into the female terminal 1, immediately after the insertion, as shown in FIG. 1B, the male terminal 2 is caused by the reaction force of the spring contact portion 1b that starts to be pushed open by the other surface 2b of the male terminal 2. The entire female terminal 1 is tilted so that the inclined surface 1c in front of the concave portion 1e contacts the one surface 2a of 2.
[0022]
Immediately after the insertion, the male terminal 2 can be inserted straight into the spring clearance b wider than the initial spring clearance a, and it can only be pushed open to the spring clearance d approximately in the middle of the spring clearance c after insertion. , The insertion force is low.
[0023]
Further, when the male terminal 2 is inserted, as shown in FIG. 1 (C), the tip 2c of the male terminal 2 comes into contact with the inclined surface 1d at the back of the recess 1e, and the entire female terminal 1 is tilted from the original position. One surface 2a of 2 begins to contact the upper edge portion 1p of the fixed contact portion 1a at the back of the inclined surface 1d at the back of the recess 1e . Also at this time, the insertion force is reduced because the spring clearance e is merely pushed open to a spring clearance e slightly wider than the spring clearance d.
[0024]
Subsequently, when the male terminal 2 is inserted, as shown in FIG. 1 (D), the entire female terminal 1 is completely tilted so that one surface 2a of the male terminal 2 is completely on the upper edge 1p of the fixed contact portion 1a. To touch. Also at this time, the insertion force is lowered because it is merely pushed open to the spring clearance c after insertion which is slightly wider than the spring clearance e.
[0025]
As described above, since the insertion force of the male terminal 2 is divided into several times, the insertion force does not peak at once as in the conventional case, and the insertion force is averaged as shown in FIG. The male terminal 2 can be inserted with a low insertion force. Further, since the lever is not used or the bolt tightening force is not used as in the prior art, the insertion work is simplified and the number of parts is not increased.
[0026]
FIG. 2 shows a specific shape when the punched female terminal 1 is accommodated in the cartridge connector 5A. The same applies to the case where the connector 5B is accommodated.
[0027]
The housing 5a of the cartridge connector 5A includes an inner housing 5b and an outer housing 5c. The inner housing 5b is fitted into the outer housing 5c, and the lock claw 5d of the inner housing 5b is engaged with the lock hole 5e of the outer housing 5c. Stop and assemble both housings 5b and 5c together.
[0028]
The inner housing 5b is provided with a cavity 5f having a margin for allowing the female terminal 1 to tilt, and the female terminal 1 is accommodated in the cavity 5f.
[0029]
At the tip of the fixed contact portion 1a of the female terminal 1, a narrow folded portion 1f folded back in an inverted U shape is integrally formed, and an intermediate portion 1g of the folded portion 1f is formed as a press-fitting hole 5g of the inner housing 5b. Press fit into.
[0030]
The substrate 3 is inserted into the rear end 1h of the folded portion 1f, and is fixed by soldering to a printed wiring or the like of the substrate 3.
[0031]
Further, the intermediate portion 1g of the folded portion 1f and the fixed contact portion 1a are formed in a flexible portion 1i curved in a wave shape, and the entire female terminal 1 is formed by the flexible portion 1i in FIG. It is energized so as to return from the tilted state to the non-tilted state of FIGS.
[0032]
The U-shaped portion 1j between the flexible portion 1i and the fixed contact portion 1a and the U-shaped portion 1k at the distal end of the spring contact portion 1b are engaged with the distal end portion of the inner housing 5b and are female. The terminal 1 is held so as not to move in the insertion direction of the male terminal 2.
[0033]
If the female terminal 1 is accommodated in the connector 5A as described above, the female terminal 1 before insertion of the male terminal 2 is held in the state of FIG.
[0034]
Then, when the male terminal 2 is inserted into the female terminal 1, immediately after the insertion, as shown in FIG. 2B, the male terminal is caused by the reaction force of the spring contact portion 1b that starts to be pushed open by the other surface 2b of the male terminal 2. The entire female terminal 1 is tilted in the cavity 5f so that the inclined surface 1c in front of the recess 1e is in contact with the one surface 2a.
[0035]
Further, when the male terminal 2 is inserted, the tip 2c of the male terminal 2 comes into contact with the inclined surface 1d at the back of the recess 1e, and the entire female terminal 1 is tilted by the urging force of the flexible portion 1f. One surface 2a starts to contact the upper edge portion 1p of the fixed contact portion 1a.
[0036]
Subsequently, when the male terminal 2 is inserted, the entire female terminal 1 is completely tilted as shown in FIG. 2C, and one surface 2a of the male terminal 2 is completely connected to the upper edge portion 1p of the fixed contact portion 1a. To touch.
[0037]
In the above embodiment, the punched female terminal 1 is used. However, as shown in FIGS. 4A to 4C, the same configuration is adopted when the male terminal 2 is inserted into the box-shaped female terminal 1. be able to.
[Brief description of the drawings]
FIG. 1 is a punched female terminal of the present invention, (A) is a side view before insertion of a male terminal, (B) is a side view immediately after insertion, (C) is a side view in the middle of insertion, and (D) is It is a side view at the time of completion of insertion.
FIG. 2 is a cartridge connector containing a punched female terminal, (A) is a side sectional view before insertion of the male terminal, (B) is a side sectional view immediately after insertion, and (C) is a side sectional view when insertion is completed. FIG.
3A is a perspective view of a punched female terminal, and FIG. 3B is a graph showing the relationship between the insertion force and the insertion stroke of the female terminal of the present invention.
4A is a side view before insertion of a male terminal, FIG. 4B is a side view immediately after insertion, and FIG. 4C is a side view after completion of insertion.
5A is a perspective view of a cartridge connector and a printed circuit board that contain female terminals, and FIG. 5B is a perspective view of a connector that contains female terminals and an electrical connection box.
FIG. 6 is a conventional punched female terminal, (A) is a side view before insertion of the male terminal, (B) is a side view immediately after insertion, (C) is a side view when insertion is completed, and (D) is a side view. It is a graph of the relationship between the insertion force of a female terminal, and an insertion stroke.
7A is a side view of a conventional box-shaped female terminal before insertion of a male terminal, FIG. 7B is a side view immediately after insertion, and FIG. 7C is a side view after completion of insertion;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Female terminal 1a Fixed contact part 1b Spring contact part 1c, 1d Slope 1i Flexible part 1j, 1k U-shaped part 2 'Male terminal 2a One side 2b Other side 5A, 5B Connector 5a Housing 6 Printed circuit board

Claims

In side view, a fixed contact portion 1a having a straight upper edge 1p, and a spring contact part 1b forming the convex portion 1r, the convex portion 1r, oblique slant surface 1s, and 1t And a lower apex portion 1q where the oblique surfaces 1s and 1t intersect with each other, a predetermined initial spring clearance a is set between the upper edge portion 1p and the lower apex portion 1q of the convex portion 1r, and the fixed contact portion When the male terminal 2 is inserted from the longitudinal direction A of the fixed contact portion 1a between 1a and the spring contact portion 1b, one surface 2a of the male terminal 2 contacts the upper edge portion 1p of the fixed contact portion 1a, In the female terminal 1 in which the other surface 2b of the male terminal 2 comes into contact with the lower top portion 1q of the convex portion 1r while the spring contact portion 1b is pushed open against the spring force.
While the female terminal 1 is provided so as to be tiltable in the vertical direction B, a recess 1e having substantially V-shaped inclined surfaces 1c and 1d is formed in front of the upper edge 1p of the fixed contact portion 1a on the insertion side. Between the inclined surface 1c in the insertion direction of the concave portion 1e and the inclined surface 1s of the convex portion 1r facing this, and the inclined surface 1d in the insertion direction of the concave portion 1e and the convex shape portion 1r facing this. Is set to a spring clearance b approximately in the middle between the initial spring clearance a and the spring clearance c after insertion of the male terminal 2,
Immediately after the insertion of the male terminal 2, the female contact 2b is brought into contact with the one surface 2a of the male terminal 2 by the reaction force of the spring contact portion 1b that starts to be pushed open by the other surface 2b of the male terminal 2. The entire surface of the male terminal 2 is tilted, and when the male terminal 2 is inserted, the tip 2c of the male terminal 2 comes into contact with the inclined surface 1d at the back of the recess 1e, and the entire female terminal 1 is tilted based on the original surface. 2a begins to contact the upper edge 1p of the fixed contact portion 1a at the back of the inclined surface 1d at the back of the recess 1e, and then the insertion of the male terminal 2 causes the entire female terminal 1 to tilt completely, A structure of a female terminal, wherein one surface 2a of the terminal 2 is in complete contact with the upper edge portion 1p of the fixed contact portion 1a.

The female terminal 2 is tiltably held in the housing 5b of the connector 5A, and the fixed contact portion 1a and the spring contact portion 1b are supported so as not to move in the insertion direction of the male terminal 2, and the fixed contact portion. The structure of the female terminal according to claim 1, wherein 1a is supported via a flexible portion 1i.