JP2004119088A

JP2004119088A - Electric connector

Info

Publication number: JP2004119088A
Application number: JP2002278394A
Authority: JP
Inventors: Yukifumi Machida; 町田　幸文; Yoshikazu Tanaka; 田中　義和; Takayuki Higuchi; 樋口　貴之
Original assignee: Ryosei Electro Circuit Systems Ltd
Current assignee: Mitsubishi Cable Industries Ltd
Priority date: 2002-09-25
Filing date: 2002-09-25
Publication date: 2004-04-15
Anticipated expiration: 2022-09-25
Also published as: JP4025160B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connector whose terminal through hole cannot be inserted with a jig mistakenly when an engaging arm is released with the jig via a front holder. <P>SOLUTION: A connecting terminal 15 whose upper portion has an engaging lance which prevents backward coming out of the connecting terminal 15, is inserted into a housing 11. The front holder 16 is engaged to the housing 11 for a direction of an axis of the housing 11 with engaging mechanism, and the front holder 16 can move in transverse direction which is orthogonal to the direction of the axis. Upper position of a pair of arm operating holes 18 and under position of a pair of the terminal through holes 17 to the same connecting terminal 15, are shifted side to side each other. In the first position of the front holder 16, the axis of the pair of the terminal through holes 17 coincides with the axis of the female connecting terminal 15 and the position of the pair of the arm operating holes 18 and position of the engaging arm are shifted side to side each other. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば自動車のワイヤハーネスに使用可能な電気コネクタに関するものである。
【０００２】
【従来の技術】
従来のこの種の電気コネクタにおいては、電線を後部に接続した複数の接続端子をハウジング内に収容し、ハウジングに一体に形成した係止アームにより接続端子が後方に抜け出さないように係止し、ハウジングの前部に係合した図１１に示すフロントホルダ１によって、係止アームの係止力を確保することが知られている。
【０００３】
この場合に、接続端子をハウジング２から取り外す必要があると、接続端子から係止アームを解除しなければならない。そのために、ハウジング２の前方から内部に治具を挿入する必要があるので、フロントホルダ１には相手側の挿込端子が挿入される端子挿通孔３と共に、アーム操作孔４が設けられている。
【０００４】
【発明が解決しようとする課題】
しかしフロントホルダにおいては、アーム操作孔４は端子挿通孔３の直上に位置しているために、誤って治具を端子挿通孔３に挿入して接続端子を傷付けたり、或いは相手側接続端子がアーム操作孔４に入りかけることもある。
【０００５】
本発明の目的は、上述の問題点を解消し、端子挿通孔とアーム操作孔は同時に機能し得ないようにし、作業等の安全性を確保した電気コネクタを提供することにある。
【０００６】
本発明の他の目的は、フロントホルダにより係止アームの接続端子に対する係止を確保する電気コネクタを提供することにある。
【０００７】
本発明の更に他の目的は、フロントホルダによりハウジング内の接続端子を後方に押し込んで、接続端子を係止アームに揺動することなく確実に接触させる電気コネクタを提供することにある。
【０００８】
【課題を解決するための手段】
上記目的を達成するための本発明に係る電気コネクタは、電線を後部に接続した接続端子をハウジングに収容し、該ハウジングの係止アームにより前記接続端子が後方に抜け出さないように係止すると共に、前記ハウジングの前部に係合したフロントホルダにより前記接続端子に対する前記係止アームの係止力を確保する電気コネクタにおいて、前記フロントホルダは、前記ハウジングの前部の第１と第２の左右の位置に前記ハウジングの軸線と直交する方向に移動可能とし、前記第１の位置において相手側ハウジングと嵌合して接続端子同士の電気的接続を行い得るようにし、前記接続端子に対する相手側接続端子を挿通する複数の端子挿通孔と前記係止アームを操作する複数のアーム操作孔とを有し、前記第１の位置において前記端子挿通孔が前記接続端子の軸線と合致し、前記第２の位置において前記アーム操作孔が前記係止アームの位置と合致するようにしたことを特徴とする。
【０００９】
また、本発明に係る電気コネクタは、電線を後部に接続した接続端子をハウジングに収容し、該ハウジングの係止アームにより前記接続端子が後方に抜け出さないように係止すると共に、前記ハウジングの前部に係合したフロントホルダにより前記接続端子に対する前記係止アームの係止力を確保する電気コネクタにおいて、前記フロントホルダは、前記ハウジングの前部の第１と第２の左右の位置に前記ハウジングの軸線と直交する方向に移動可能とし、前記第１の位置において相手側ハウジングと嵌合して接続端子同士の電気的接続を行い得るようにし、前記第１の位置において前記係止ランスを前記接続端子側に押さえ付け、前記第２の位置において前記係止ランスを解放するアーム押圧部を前記フロントホルダに設けたことを特徴とする。
【００１０】
更に、本発明に係る電気コネクタは、電線を後部に接続した接続端子をハウジングに収容し、該ハウジングの係止アームにより前記接続端子が後方に抜け出さないように係止すると共に、前記ハウジングの前部に係合したフロントホルダにより前記接続端子に対する前記係止アームの係止力を確保する電気コネクタにおいて、前記フロントホルダは、前記ハウジングの前部の第１と第２の左右の位置に前記ハウジングの軸線と直交する方向に移動可能とし、前記第１の位置において相手側ハウジングと嵌合して接続端子同士の電気的接続を行い得るようにし、前記フロントホルダが前記第２の位置から前記第１の位置に移行する過程で前記接続端子を後方に押し込んで前記係止アームと前記接続端子が軸線方向に間隙が生じないようにする端子押込部を前記フロントホルダに設けたことを特徴とする。
【００１１】
【発明の実施の形態】
本発明を図示の実施例に基づいて詳細に説明する。
図１は相手側端子を受け入れ可能な状態におけるコネクタの正面図、図２は図１のＡ−Ａ線に沿ったハウジングとフロントホルダの断面図、図３は図１のＢ−Ｂ線に沿った同様の断面図である。
【００１２】
合成樹脂製のハウジング１１内には例えば２つの端子収容孔１２が形成されており、各端子収容孔１２の上部には弾発性を有し、下方への付勢力を持つ係止アーム１３が形成されている。端子収容孔１２内には、電線１４付きの雌型接続端子１５がハウジング１１の後方から挿入され、接続端子１５の接続部１５ａの後部が係止アーム１３の爪部１３ａによって係止され、後方への抜け出しが防止されている。なお、図面においては一方の端子収容孔１２には接続端子１５を挿入されていない状態を図示している。
【００１３】
各端子収容孔１２の前方には、１個の合成樹脂材から成るフロントホルダ１６がハウジング１１に対して装着されており、このフロントホルダ１６には端子収容孔１２の数だけの相手側の挿込接続端子が挿入される端子挿通孔１７と、同数の係止アーム１３を治具により操作するためのアーム操作孔１８が開口されている。なお、この実施の形態においては、上述したように収容される雌型接続端子５は２個であり、端子挿通孔１７、アーム操作孔１８はそれぞれ２個とされている。
【００１４】
フロントホルダ１６はハウジング１１に対して、図３に示す係合機構１９によりハウジング１１の軸線方向に対し係合され、軸線と直交する横方向に移動可能とされている。図１に示すように、同一の接続端子１５に対する一対の端子挿通孔１７とアーム操作孔１８の上下方向の位置は横方向に相互にずれている。図１〜図３に示すフロントホルダ１６の正規の第１の位置においては、端子挿通孔１７は雌型接続端子１５の軸線と合致するようにされ、アーム操作孔１８は係止アーム１３の位置と左右にずれている。なお、この第１の位置において、フロントホルダ１６が更に右行しないように規制するために、フロントホルダ１６の左側部に壁部２０が設けられていると共に、フロントホルダ１６はハウジング１１に対してロック機構により係止できるようにされている。
【００１５】
また、フロントホルダ１６のハウジング１１内の先端には、各係止アーム１３ごとに突片状のアーム押圧部２１が設けられ、このアーム押圧部２１は後述する第２の位置からこの第１の位置に移行する際に、係止アーム１３の上部に横方向から挿入され、係止アーム１３が雌型接続端子１５を確実に係止するように係止アーム１３を上方から押圧する。更に、フロントホルダ１６の各端子挿通孔１７の接続端子１５側の側部には、接続端子１５の前端を後方に押圧するための端子押込部２２が形成されており、この端子押込部２２の下縁には傾斜部２２ａが形成されている。
【００１６】
なお、フロントホルダ１６の更に先方のハウジング１１内には、相手側ハウジングと接合して防水性を確保するための円筒状のシール部材２３が配置され、雌型接続端子１５の電線１４にはそれぞれシール部材２４が装着されている。なお、端子収容孔１２の入口部断面は縦長の楕円形とされており、電線１４が挿通されたシール部材２４も、この形状に追従して同形状に変形されている。
【００１７】
図４はフロントホルダ１６をハウジング１１に装着した状態、或いはフロントホルダ１６を先の図１〜図３の第１の位置から戻した状態の第２の位置にフロントホルダ１６がある場合の正面図であり、図５は図４のＣ−Ｃ線に沿ったハウジングとフロントホルダの断面図、図６は図４のＤ−Ｄ線に沿った同様の断面図である。なお、この第２の位置において、フロントホルダ１６は所定位置で停止させるために仮係止できるように構成されている。
【００１８】
この第２の位置にあるフロントホルダ１６においては、端子挿通孔１７は雌型接続端子１５の軸線と一致せず、アーム操作孔１８が係止アーム１３の前方に位置している。従って、係止アーム１３の上方にはアーム押圧部２１が位置していないので、必要に応じてアーム操作孔１８から治具を挿し込んで、図６の状態にある係止アーム１３を持ち上げることにより、係止アーム１３の接続端子１５への係止を解除し、接続端子１５をハウジング１１の後方に引き出すことができる。
【００１９】
ハウジング１１に各雌型接続端子１５を収容する際には、フロントホルダ１６を予め第２の位置に仮係止しておき、その後に端子収容孔１２に接続端子１５を挿入する。接続端子１５の接続部１５ａが弾発性を有する係止アーム１３を押し上げて、端子収容孔１２の奥まで挿入されると、接続端子１５の接続部１５ａはフロントホルダ１６の内壁に当接して、それ以上は挿入できなくなる。同時に、係止アーム１３は下方に復元して、爪部１３ａは接続端子１５の接続部１５ａの後部に位置する。
【００２０】
全ての接続端子１５が端子収容孔１２内に挿着されると、フロントホルダ１６をこの第２の位置から右方の第１の位置に移動させる。この際に、フロントホルダ１６のアーム押圧部２１は係止アーム１３の上方に滑り込んで、係止アーム１３を下方に押さえ付けて係止アーム１３が上方に持ち上がることを防止し、雌型接続端子１５に対する係止を確実にする。
【００２１】
また、フロントホルダ１６が図４〜図６に示す第２の位置において、雌型接続端子１５が端子収容孔１２の先端まで十分に挿入されていない場合には、図７に示すように係止アーム１３が接続端子１５の接続部１５ａに邪魔されて下降し切っていないために、フロントホルダ１６を第１の位置に移行するために移動させても、フロントホルダ１６のアーム押圧部２１が係止アーム１３と衝突し、フロントホルダ１６は移動できないことになる。これにより、接続端子１５がハウジング１１内の所定の位置に挿入されていないことを検知することができる。
【００２２】
第２の位置から第１の位置への移行によって、フロントホルダ１６の端子押込部２２は、図８に示すように雌型接続端子１５のその前端部を傾斜部２２ａにより押して、図９を経て図１０に示すように接続端子１５をハウジング１１に対して後方に押し込み、接続端子１５の接続部１５ａの後部が係止アーム１３の爪部１３ａに確実に接触して係止されるようにすると共に、接続端子１５が端子収容孔１２内において揺動が生じないようにする。
【００２３】
これにより、フロントホルダ１６は先の図１〜図３の状態となり、端子挿通孔１７は雌型接続端子１５の軸線と一致し、係止アーム１３の前方はフロントホルダ１６によって閉塞されている。この状態において、ハウジング１１が相手側ハウジングと嵌合すると、相手側の挿込接続端子Ｔは端子挿通孔１７を介して雌型接続端子１５に挿入される。このとき、係止アーム１３はフロントホルダ１６のアーム押圧部２１によって押さえ付けられ、更に接続端子１５は端子押込部２２によって後方に押し込まれているので、接続端子１５は揺動することなく挿込接続端子Ｔとの電気的接続がなされる。
【００２４】
ハウジング１１から雌型接続端子１５を外す場合には、フロントホルダ１６を左行して図４〜図６に示す第２の位置に戻すと、今度はアーム操作孔１８が係止アーム１３の前方に位置し、接続端子１５の軸線はフロントホルダ１６によって閉塞されるので、作業者は誤ることなくアーム操作孔１８から先細状の治具を挿入して、係止アーム１３の接続端子１５に対する係止を解除することができる。
【００２５】
なお、実施の形態においては、接続端子を雌型接続端子として説明したが、雄型接続端子とすることも可能である。この場合には、フロントホルダ１６の端子挿通孔１７からは常に挿込用接続端が突出されることになるが、端子挿通孔１７を幅広とし、第１、第２の位置の間でフロントホルダ１６が雄型接続端子に対し移動可能とし、アーム操作孔１８が第２の位置においてのみ係止アーム１３と合致するようにすればよい。
【００２６】
これにより、少なくとも第１の位置においては、アーム操作孔１８は係止アーム１３と合致せず、更にはアーム押圧部２１により係止アーム１３は確実に雄型接続端子を係止することになる。また、端子押込部２２により雄型接続端子の一部に設けた被押込部を押し込むことにより、雌型接続端子１５の場合と同様に、雄型接続端子を後方に押し込んで係止アーム１３に接触させ、揺動を防止することができる。
【００２７】
なお、上述の実施の形態にあっては、端子挿通孔１７とアーム操作孔１８の位置をずらしたこと、アーム押込部９により係止アーム１３を押さえ付けたこと、端子押込部２２により接続端子１５を押し込んだことを１つの実施の形態として説明したが、これらはフロントホルダ１６を左右に移動することにおいて共通とするものの、それぞれ別個の機能として実施することができる。
【００２８】
【発明の効果】
以上説明したように本発明に係る電気コネクタは、端子挿通孔とアーム操作孔の位置を左右にずらし、フロントホルダを左右に移動することによって端子挿通孔とアーム操作孔が同時に機能しないようにして、作業の安全性を確保する。
【００２９】
また、本発明に係る電気コネクタは、フロントホルダを左右方向に移動することによって、アーム押圧部により係止アームが接続端子から外れることを防止する。
【００３０】
更に、本発明に係る電気コネクタは、フロントホルダの左右の移動によって、端子押込部により接続端子を後方に押し込んで係止ランスに確実に係止させると共に、接続端子の揺動をなくす。
【図面の簡単な説明】
【図１】フロントホルダが第１の位置にある状態の正面図である。
【図２】図１のＡ−Ａ線に沿ったハウジングとフロントホルダの断面図である。
【図３】図１のＢ−Ｂ線に沿った同様の断面図である。
【図４】フロントホルダが第２の位置にある状態の正面図である。
【図５】図４のＣ−Ｃ線に沿ったハウジングとフロントホルダの断面図である。
【図６】図４のＤ−Ｄ線に沿った同様の断面図である。
【図７】接続端子がハウジング内に十分に挿入されていない状態の図６と同様の断面図である。
【図８】端子押込部により接続端子を押し込む過程の説明図である。
【図９】端子押込部により接続端子を押し込む過程の説明図である。
【図１０】端子押込部により接続端子を押し込んだ状態の説明図である。
【図１１】従来例の正面図である。
【符号の説明】
１１　ハウジング
１２　端子収容孔
１３　係止アーム
１５　雌型接続端子
１６　フロントホルダ
１７　端子挿通孔
１８　アーム操作孔
１９　係合機構
２１　アーム押圧部
２２　端子押込部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electrical connector that can be used, for example, for a wire harness of an automobile.
[0002]
[Prior art]
In a conventional electric connector of this type, a plurality of connection terminals connected to a rear portion of an electric wire are housed in a housing, and the connection terminals are locked by a locking arm formed integrally with the housing so as not to come out backward, It is known that the locking force of the locking arm is ensured by the front holder 1 shown in FIG. 11 engaged with the front part of the housing.
[0003]
In this case, if it is necessary to remove the connection terminal from the housing 2, the locking arm must be released from the connection terminal. For this purpose, it is necessary to insert a jig from the front of the housing 2 into the inside. Therefore, the front holder 1 is provided with an arm operation hole 4 together with a terminal insertion hole 3 into which a mating insertion terminal is inserted. .
[0004]
[Problems to be solved by the invention]
However, in the front holder, since the arm operation hole 4 is located immediately above the terminal insertion hole 3, the jig may be erroneously inserted into the terminal insertion hole 3 to damage the connection terminal, or the mating connection terminal may be damaged. It may enter the arm operation hole 4.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide an electrical connector that solves the above-mentioned problems, prevents the terminal insertion hole and the arm operation hole from functioning at the same time, and ensures the safety of work and the like.
[0006]
Another object of the present invention is to provide an electrical connector that secures engagement of a locking arm to a connection terminal by a front holder.
[0007]
Still another object of the present invention is to provide an electric connector in which a connection terminal in a housing is pushed rearward by a front holder, and the connection terminal reliably contacts a locking arm without swinging.
[0008]
[Means for Solving the Problems]
An electric connector according to the present invention for achieving the above object accommodates a connection terminal having a wire connected to a rear portion in a housing, and locks the connection terminal with a locking arm of the housing so that the connection terminal does not come out backward. An electrical connector for securing a locking force of the locking arm to the connection terminal by a front holder engaged with a front portion of the housing, wherein the front holder includes first and second left and right portions of a front portion of the housing. At a position perpendicular to the axis of the housing, and at the first position, can be fitted to a mating housing to perform electrical connection between the connecting terminals, and a mating connection to the connecting terminal can be made. A plurality of terminal insertion holes for inserting terminals and a plurality of arm operation holes for operating the locking arm, wherein the terminal insertion hole is provided at the first position; Hole coincides with the axis of the connecting terminal, the second of said arm operation hole at the position is characterized in that so as to match the position of the locking arm.
[0009]
Further, the electrical connector according to the present invention is configured such that a connection terminal connecting an electric wire to a rear portion is housed in a housing, and the connection arm is locked by a locking arm of the housing so that the connection terminal does not come out backward. An electrical connector for securing a locking force of the locking arm with respect to the connection terminal by a front holder engaged with the housing, wherein the front holder is provided with the housing at first and second left and right positions of a front portion of the housing. In the direction orthogonal to the axis of the connector terminal, so that the connection terminal can be electrically connected to the mating housing at the first position by fitting the locking lance at the first position. The front holder is provided with an arm pressing portion that presses against the connection terminal side and releases the locking lance at the second position. That.
[0010]
Further, in the electrical connector according to the present invention, the connection terminal connecting the electric wire to the rear portion is housed in the housing, and the connection arm is locked by the locking arm of the housing so as not to come out backward, and the front of the housing. An electrical connector for securing a locking force of the locking arm with respect to the connection terminal by a front holder engaged with the housing, wherein the front holder is provided with the housing at first and second left and right positions of a front portion of the housing. The first holder is configured to be movable in a direction orthogonal to the axis of the first terminal, so that the first terminal can be connected to the mating housing so that the connection terminals can be electrically connected to each other, and the front holder is moved from the second position to the second terminal. In the process of shifting to the position 1, the connection terminal is pushed rearward so that the locking arm and the connection terminal do not have a gap in the axial direction. The push portion, characterized in that provided on the front holder.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention will be described in detail based on the illustrated embodiment.
1 is a front view of the connector in a state in which a mating terminal can be received, FIG. 2 is a cross-sectional view of the housing and the front holder taken along line AA in FIG. 1, and FIG. FIG.
[0012]
For example, two terminal receiving holes 12 are formed in a synthetic resin housing 11, and a locking arm 13 having elasticity and a downward urging force is provided above each terminal receiving hole 12. Is formed. A female connection terminal 15 with an electric wire 14 is inserted into the terminal accommodating hole 12 from the rear of the housing 11, and a rear portion of the connection portion 15 a of the connection terminal 15 is locked by a claw portion 13 a of a locking arm 13. Is prevented from slipping out. The drawing shows a state in which the connection terminal 15 is not inserted into one of the terminal receiving holes 12.
[0013]
A front holder 16 made of one synthetic resin material is mounted on the housing 11 in front of each terminal accommodating hole 12. A terminal insertion hole 17 into which the connection terminal is inserted, and an arm operation hole 18 for operating the same number of locking arms 13 with a jig are opened. In this embodiment, two female connection terminals 5 are accommodated as described above, and two terminal insertion holes 17 and two arm operation holes 18 are provided.
[0014]
The front holder 16 is engaged with the housing 11 in an axial direction of the housing 11 by an engagement mechanism 19 shown in FIG. 3, and is movable in a lateral direction orthogonal to the axis. As shown in FIG. 1, the vertical positions of the pair of terminal insertion holes 17 and the arm operation holes 18 with respect to the same connection terminal 15 are mutually shifted in the horizontal direction. In the normal first position of the front holder 16 shown in FIGS. 1 to 3, the terminal insertion hole 17 is aligned with the axis of the female connection terminal 15, and the arm operation hole 18 is located at the position of the locking arm 13. And left and right. In this first position, a wall 20 is provided on the left side of the front holder 16 so as to restrict the front holder 16 from going further rightward. It can be locked by a lock mechanism.
[0015]
A protruding arm pressing portion 21 is provided at the tip of the front holder 16 in the housing 11 for each locking arm 13, and the arm pressing portion 21 is moved from a second position described later to the first position. At the time of shifting to the position, it is inserted laterally into the upper part of the locking arm 13 and presses the locking arm 13 from above so that the locking arm 13 securely locks the female connection terminal 15. Further, a terminal pressing portion 22 for pressing the front end of the connection terminal 15 rearward is formed on a side of the terminal insertion hole 17 of the front holder 16 on the side of the connection terminal 15. An inclined portion 22a is formed on the lower edge.
[0016]
In addition, in the housing 11 further ahead of the front holder 16, a cylindrical sealing member 23 is arranged to be joined to the mating housing to ensure waterproofness. A seal member 24 is mounted. In addition, the cross section of the entrance portion of the terminal accommodating hole 12 is a vertically long elliptical shape, and the seal member 24 into which the electric wire 14 is inserted is also deformed into the same shape following this shape.
[0017]
FIG. 4 is a front view showing a state where the front holder 16 is mounted on the housing 11 or a second position where the front holder 16 is returned from the first position shown in FIGS. FIG. 5 is a cross-sectional view of the housing and the front holder taken along line CC of FIG. 4, and FIG. 6 is a similar cross-sectional view taken along line DD of FIG. In this second position, the front holder 16 is configured to be temporarily locked to stop at a predetermined position.
[0018]
In the front holder 16 at the second position, the terminal insertion hole 17 does not coincide with the axis of the female connection terminal 15, and the arm operation hole 18 is located in front of the locking arm 13. Accordingly, since the arm pressing portion 21 is not located above the locking arm 13, a jig is inserted from the arm operation hole 18 as necessary to lift the locking arm 13 in the state of FIG. Thereby, the locking of the locking arm 13 to the connection terminal 15 can be released, and the connection terminal 15 can be pulled out to the rear of the housing 11.
[0019]
When each female connection terminal 15 is housed in the housing 11, the front holder 16 is temporarily locked in the second position in advance, and then the connection terminal 15 is inserted into the terminal housing hole 12. When the connection portion 15a of the connection terminal 15 pushes up the resilient locking arm 13 and is inserted into the terminal receiving hole 12, the connection portion 15a of the connection terminal 15 comes into contact with the inner wall of the front holder 16. Can no longer be inserted. At the same time, the locking arm 13 is restored downward, and the claw portion 13a is located at the rear of the connection portion 15a of the connection terminal 15.
[0020]
When all the connection terminals 15 are inserted into the terminal receiving holes 12, the front holder 16 is moved from the second position to the first position on the right. At this time, the arm pressing portion 21 of the front holder 16 slides above the locking arm 13 and presses the locking arm 13 downward to prevent the locking arm 13 from being lifted up. Ensure locking to 15
[0021]
When the female connection terminal 15 is not fully inserted to the tip of the terminal receiving hole 12 when the front holder 16 is in the second position shown in FIGS. Since the arm 13 is not obstructed by the connection portion 15a of the connection terminal 15 and is not completely lowered, even if the front holder 16 is moved to shift to the first position, the arm pressing portion 21 of the front holder 16 is not engaged. The collision with the stop arm 13 causes the front holder 16 to be unable to move. Thereby, it can be detected that the connection terminal 15 is not inserted at a predetermined position in the housing 11.
[0022]
By the shift from the second position to the first position, the terminal pushing portion 22 of the front holder 16 pushes the front end of the female connection terminal 15 by the inclined portion 22a as shown in FIG. As shown in FIG. 10, the connection terminal 15 is pushed backward with respect to the housing 11 so that the rear portion of the connection portion 15 a of the connection terminal 15 is securely brought into contact with the claw portion 13 a of the locking arm 13 and locked. At the same time, the connection terminal 15 is prevented from swinging in the terminal receiving hole 12.
[0023]
Thereby, the front holder 16 is in the state shown in FIGS. 1 to 3, the terminal insertion hole 17 is aligned with the axis of the female connection terminal 15, and the front of the locking arm 13 is closed by the front holder 16. In this state, when the housing 11 is fitted with the mating housing, the mating insertion connection terminal T is inserted into the female connection terminal 15 via the terminal insertion hole 17. At this time, the locking arm 13 is pressed by the arm pressing portion 21 of the front holder 16 and the connection terminal 15 is pushed rearward by the terminal pressing portion 22, so that the connection terminal 15 is inserted without swinging. The electrical connection with the connection terminal T is made.
[0024]
When removing the female connection terminal 15 from the housing 11, the front holder 16 is moved to the left and returned to the second position shown in FIGS. 4 to 6. , And the axis of the connection terminal 15 is closed by the front holder 16, so that the operator can insert the tapered jig from the arm operation hole 18 without error and engage the engagement arm 13 with the connection terminal 15. The suspension can be released.
[0025]
In the embodiment, the connection terminal is described as a female connection terminal. However, a male connection terminal may be used. In this case, the connection end for insertion always projects from the terminal insertion hole 17 of the front holder 16, but the terminal insertion hole 17 is made wider and the front holder is placed between the first and second positions. 16 may be movable with respect to the male connection terminal, and the arm operation hole 18 may be aligned with the locking arm 13 only in the second position.
[0026]
As a result, at least in the first position, the arm operation hole 18 does not match the locking arm 13, and the locking arm 13 is securely locked by the arm pressing portion 21 with the male connection terminal. . Further, by pushing the pushed-in portion provided on a part of the male connection terminal by the terminal pushing portion 22, the male connection terminal is pushed backward similarly to the case of the female connection terminal 15 so that the male connection terminal is pushed into the locking arm 13. Contact can be prevented from swinging.
[0027]
In the above-described embodiment, the positions of the terminal insertion holes 17 and the arm operation holes 18 are shifted, the locking arms 13 are pressed by the arm pressing portions 9, and the connection terminals are connected by the terminal pressing portions 22. Although the pushing of the front holder 15 has been described as one embodiment, they are common in moving the front holder 16 left and right, but can be implemented as separate functions.
[0028]
【The invention's effect】
As described above, the electric connector according to the present invention shifts the positions of the terminal insertion hole and the arm operation hole left and right, and moves the front holder left and right so that the terminal insertion hole and the arm operation hole do not function at the same time. , Ensuring work safety.
[0029]
Further, the electric connector according to the present invention prevents the locking arm from being detached from the connection terminal by the arm pressing portion by moving the front holder in the left-right direction.
[0030]
Further, in the electrical connector according to the present invention, by moving the front holder to the left and right, the connection terminal is pushed rearward by the terminal pressing portion to be securely locked by the locking lance, and swing of the connection terminal is eliminated.
[Brief description of the drawings]
FIG. 1 is a front view of a state where a front holder is at a first position.
FIG. 2 is a sectional view of the housing and the front holder taken along line AA of FIG.
FIG. 3 is a similar sectional view taken along the line BB of FIG. 1;
FIG. 4 is a front view of a state where the front holder is at a second position.
FIG. 5 is a cross-sectional view of the housing and the front holder taken along line CC of FIG. 4;
FIG. 6 is a similar sectional view taken along the line DD of FIG. 4;
FIG. 7 is a cross-sectional view similar to FIG. 6 in a state where the connection terminal is not sufficiently inserted into the housing.
FIG. 8 is an explanatory diagram of a process of pushing a connection terminal by a terminal pushing section.
FIG. 9 is an explanatory diagram of a process of pushing a connection terminal by a terminal pushing unit.
FIG. 10 is an explanatory diagram of a state where a connection terminal is pushed by a terminal pushing unit.
FIG. 11 is a front view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Housing 12 Terminal accommodation hole 13 Locking arm 15 Female connection terminal 16 Front holder 17 Terminal insertion hole 18 Arm operation hole 19 Engagement mechanism 21 Arm pressing part 22 Terminal pushing part

Claims

A connection terminal connecting an electric wire to a rear portion is housed in a housing, the connection terminal is locked by a locking arm of the housing so as not to come out backward, and the connection is performed by a front holder engaged with a front portion of the housing. In the electric connector which secures a locking force of the locking arm with respect to a terminal, the front holder is movable to first and second left and right positions of a front portion of the housing in a direction orthogonal to an axis of the housing. A plurality of terminal insertion holes for inserting the mating connection terminals into the connection terminals by fitting the mating housings with each other at the first position so that the connection terminals can be electrically connected to each other; A plurality of arm operation holes for operation, wherein the terminal insertion hole is aligned with the axis of the connection terminal at the first position, and is positioned at the second position. Electrical connector, wherein the arm operation hole was made to coincide with the position of the locking arm Te.

A connection terminal connecting an electric wire to a rear portion is housed in a housing, the connection terminal is locked by a locking arm of the housing so as not to come out backward, and the connection is performed by a front holder engaged with a front portion of the housing. In the electric connector which secures a locking force of the locking arm with respect to a terminal, the front holder is movable to first and second left and right positions of a front portion of the housing in a direction orthogonal to an axis of the housing. The first terminal is connected to the mating housing at the first position so that the connection terminals can be electrically connected to each other, and the locking lance is pressed against the connection terminal at the first position; An electric connector characterized in that an arm pressing portion for releasing the locking lance is provided on the front holder at the position (1).

The electrical connector according to claim 2, wherein the arm pressing portion has a protruding piece shape, and enters the upper side of the locking arm from the side when shifting from the second position to the first position.

A connection terminal connecting an electric wire to a rear portion is housed in a housing, the connection terminal is locked by a locking arm of the housing so as not to come out backward, and the connection is performed by a front holder engaged with a front portion of the housing. In the electric connector which secures a locking force of the locking arm with respect to a terminal, the front holder is movable to first and second left and right positions of a front portion of the housing in a direction orthogonal to an axis of the housing. Connecting the connection terminals to each other at the first position so that the connection terminals can be electrically connected to each other, and in the process of shifting the front holder from the second position to the first position, A terminal pushing portion is provided on the front holder to push a terminal backward to prevent a gap from being generated in the axial direction between the locking arm and the connection terminal. Electrical connector, characterized in that.

The electrical connector according to claim 4, wherein the terminal pressing portion has an inclined portion for gradually pressing the connection terminal.

5. The electrical connector according to claim 1, wherein the front holder can be locked to the housing by a lock in the first position. 6.

5. The electrical connector according to claim 1, wherein the front holder can be temporarily locked to the housing in the second position. 6.