JP3632811B2 - Connector with retainer - Google Patents

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Publication number
JP3632811B2
JP3632811B2 JP25177997A JP25177997A JP3632811B2 JP 3632811 B2 JP3632811 B2 JP 3632811B2 JP 25177997 A JP25177997 A JP 25177997A JP 25177997 A JP25177997 A JP 25177997A JP 3632811 B2 JP3632811 B2 JP 3632811B2
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Japan
Prior art keywords
retainer
inner housing
insertion hole
connector
terminal fitting
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Expired - Fee Related
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JP25177997A
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JPH1197096A (en
Inventor
智美 世古
正光 千島
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP25177997A priority Critical patent/JP3632811B2/en
Priority to EP98117554A priority patent/EP0903814B1/en
Priority to DE69828470T priority patent/DE69828470T2/en
Priority to BR9803576A priority patent/BR9803576A/en
Priority to CN 98119289 priority patent/CN1211836A/en
Publication of JPH1197096A publication Critical patent/JPH1197096A/en
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Publication of JP3632811B2 publication Critical patent/JP3632811B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • H01R13/4361—Insertion of locking piece perpendicular to direction of contact insertion
    • H01R13/4362—Insertion of locking piece perpendicular to direction of contact insertion comprising a temporary and a final locking position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings

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  • Connector Housings Or Holding Contact Members (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、リテーナ付きコネクタに関する。
【０００２】
【従来の技術】
リテーナ付きコネクタには、一般に、サイドリテーナタイプ（実開平６−５８５７０号公報参照）と、フロントリテーナタイプ（実開平５−２３４５５号公報、特開平８−２５０２１５号公報参照）とがある。
サイドリテーナタイプは、図７に示すように、コネクタハウジング１に端子金具２を挿入する方向と直交する方向にリテーナ３が装着されるもので、そのためにリテーナ挿入孔４がコネクタハウジング１の側面に開放されている。このタイプは、図８に示すように、リテーナ３が端子金具２に直接に係止するので、端子金具の保持力が高いという利点がある。一方、フロントリテーナタイプは、図９に示すように、端子金具２の挿入方向に沿ってリテーナ５がコネクタハウジング６に挿入され、そのためのリテーナ挿入孔７が相手コネクタとの嵌合面に開放されている。このタイプは、リテーナ挿入孔７が相手コネクタによって覆われて外部に露出しないという利点がある。
【０００３】
【発明が解決しようとする課題】
ところが、従来は、上記した両タイプの利点を併せもったリテーナ付きコネクタがなかった。
【０００４】
本発明は、上記事情に鑑みてなされたもので、リテーナ挿入孔の露出を防ぐことができ、かつ、端子金具の保持力が高いリテーナ付きコネクタの提供を目的とする。
【０００５】
【課題を解決するための手段】
上記目的を達成するため、請求項１に係る発明は、防水ゴム栓を介して端子金具を挿入可能なキャビティとこのキャビティに直交するリテーナ挿入孔とこのリテーナ挿入孔に挿入可能で同リテーナ挿入孔の奥部に位置して前記端子金具を抜け止めをするリテーナとを備えたインナハウジングと、前記インナハウジングを前記端子金具の挿入方向に沿ってその後方から収容可能とするインナ収容孔を有し同インナ収容孔へインナハウジングを収容したときには前記リテーナ挿入孔における前記インナハウジングの側面に開口する部分が、前記インナ収容孔の内壁にて覆われて外部に露出させない本体とこの本体の前部外側に突設され前記本体との間の空間に相手側コネクタを嵌合可能なフード部を有するアウタハウジングとから構成されたリテーナ付きコネクタであって、前記フード部内において前記本体の外周面には前記相手側コネクタとの間をシールする第１防水リングが嵌着される一方、前記インナハウジングにおいて前記リテーナ挿入孔より後方の外周面には前記アウタハウジングとの間をシールする第２防水リングが嵌着されているところに特徴を有する。
【０００６】
請求項２の発明は、請求項１に記載のリテーナ付きコネクタにおいて、リテーナが、リテーナ挿入孔のうち端子金具を抜け止めしない位置でインナハウジングから外方に突出するようにしたところに特徴を有する。
【０００８】
【発明の作用及び効果】
請求項１の構成によれば、リテーナはリテーナ挿入孔の奥部に位置してキャビティ内に突出し、キャビティ内に挿入された端子金具に抜け止め方向で対面する。このように、リテーナが端子金具を直接に抜け止めするから、強い保持力で端子金具を保持できる。しかも、リテーナ挿入孔を設けた部位をインナハウジングとしたから、リテーナ挿入孔はアウタハウジングに覆われて外部に露出しない。つまり、本発明により、従来のサイドリテーナタイプとフロントリテーナタイプの両方の利点を併せ持ったコネクタを提供できる。
また、第１防水リングと第２防水リングとによって、キャビティが外部に連通する隙間が塞がれ、端子金具が被水する虞がなくなる。
【０００９】
請求項２の構成によれば、リテーナが端子金具を係止していない状態だと、そのリテーナがインナハウジングから外方に突出してアウタハウジングと干渉し、インナハウジングとアウタハウジングとが組み付け不能となる。これにより、端子金具がリテーナによって係止されない状態のままで本コネクタが組み付けられることを防止できる。
【００１１】
【発明の実施の形態】
以下、本発明の実施形態を図１〜図６に基づいて説明する。
本実施形態のコネクタに備えたコネクタハウジングは、相互に嵌合可能なアウタハウジング１１（図１参照）とインナハウジング１２（図２参照）とから構成されている。
アウタハウジング１１は、図１左側の端面が相手コネクタ（図示せず）に嵌合される前面をなし、その前面から前方に突出したフード部１３とその内側の本体１４との間の空間１４Ａに相手コネクタに設けた相手側フード部が嵌合挿入されて両コネクタが接続される。本体１４の外周面には第１防水リング１６が嵌着されており、この第１防水リング１６が相手側フード部の内周面と本体１４の外周面の間で押し潰されて両者に密着する。本体１４の内部には、インナハウジング１２を収容するためのインナ収容孔１７が相手コネクタとの嵌合方向に貫通形成されており、その後側（図１右側）の開放部からインナハウジング１２が挿入される。また、インナ収容孔１７の前側（図１左側）の開放部はタブ挿入口１８をなし、ここから相手コネクタの雄タブ（図示せず）が挿入される。さらに、インナ収容孔１７の後部は全周に亘って広くなった段付部１９をなし、その段付部１９の後端には、その上下面に係止孔１９Ａ，１９Ａが形成されている。
【００１２】
一方、インナハウジング１２は、その全体が図４に示されており、インナ収容孔１７に丁度収まる長さと断面形状をなすと共に、その後端部にはアウタハウジング１１の段付部１９に対応して全周に亘って側方に張り出したフランジ部２０が備えられ、その上下面には前記係止孔１９Ａ，１９Ａに係止する係止突起２０Ａ，２０Ａが形成されている。また、インナハウジング１２の外周面のうち後側には、第２防水リング２１がフランジ部２０に突き当たるように嵌着されており、この第２防水リング２１がアウタハウジング１１の段付部１９の内周面との間で押しつぶされて両者に密着する。
【００１３】
インナハウジング１２には、一対のキャビティ１５，１５がアウタハウジング１１との嵌合方向に貫通形成され、ここに端子金具３０が挿入される。また、図２に示すように、キャビティ１５の前方側はインナハウジング１２の下面に開放されており、この開放部は前記インナ挿入孔１７の内壁によって閉じられる（図３参照）。さらに、キャビティ１５の前面の開放部（図２及び図３の符号１５Ａ）はアウタハウジング１１のタブ挿入口１８と整合し、そこから前記雄タブがキャビティ１５内に挿入される。
【００１４】
端子金具３０は、導電性の金属板を順次に切断および曲げ加工することによって図２〜図３に示すように形成され、直方体状に形成された主体部３１の前端面３１Ａがキャビティ１５に形成した突当壁（図に表れず）に突き当てられてキャビティ１５内における前方側（図２左側）への位置が決められる。また、主体部３１の前端面３１Ａには、一対の対向片３２，３２が相互に接近するように前方に延設され、この対向片３２，３２の間に前記雄タブが挟まれて電気接続される。さらに、主体部３１の一対の側壁からは金属ランス３３，３３が斜め後方に延ばされ、この金属ランス３３，３３がキャビティ１５に形成した受突部２２，２２に係止して端子金具３０が抜け止めされる（図２及び図３参照）。
【００１５】
主体部３１の後端面３１Ｂには、図２に示すように、その中心部分から立上部３４が後方に延ばされ、その先に電線３６を圧着するためのバレル部３５が設られている。立上部３４の断面は、図５に示すように、主体部３１よりも小さくなっており、後述のリテーナ４０に設けた係止空間４５に丁度収まる大きさとなっている。また、バレル部３５には、図２〜図３に示すように、電線３６の端末と共に防水ゴム栓３７が圧着されており、この防水ゴム栓３７が電線３６の外部シース及びキャビティ１５の内周面に密着している。
【００１６】
図４に示すように、インナハウジング１２にはキャビティ１５，１５と直角に交差するようにリテーナ挿入孔２３が貫通形成されており、その交差部分は、図２に示すように、キャビティ１５内に正規収容状態となった端子金具３０の立上部３４に対応している。また、リテーナ挿入孔２３には、図５に示したように、同図の右側の開口部寄りの上下面から一対の突起２４，２４が突出しており、ここに次述のリテーナ４０に設けたロック片４２，４２が係止する。
【００１７】
リテーナ４０は、図４に示すように、全体としてリテーナ挿入孔２３に嵌合挿入可能な平板状をなし、その挿入方向の前面には前記した一対のロック片４２，４２が前方に延びている。また、リテーナ４０の両ロック片４２，４２の間と平板部４０Ａとには、一対の端子保持部４３，４３が設けられている。端子保持部４３は、端子金具３０の主体部３１をリテーナ４０の厚さ方向に挿通可能な挿通空間４４と、その挿通空間４４に連通し、端子金具３０の立上部３４のみが挿通可能な係止空間４５とを備えている。そして、図５に示すように、同図の左からリテーナ４０をリテーナ挿入孔２３に挿入してロック片４２の先端が突起２４に突き当たった状態で挿通空間４４がキャビティ１５に対面し、図６に示すようにリテーナ４０をさらに押し込んでロック片４２が突起２４に係止した状態で係止空間４５がキャビティ１５に対面する。また、ロック片４２が突起２４に突き当たった状態では、リテーナ４０はインナハウジング１２から突出し、ロック片４２が突起２４に係止した状態ではリテーナ挿入孔２３内に収まる。
【００１８】
次に、本実施形態の作用について説明する。
本コネクタを組み付けるには、まずインナハウジング１２のリテーナ挿入孔２３にリテーナ４０を挿入し、リテーナ４０のロック片４２をリテーナ挿入孔２３の突起２４に突き当てた状態にする（図５参照）。すると、リテーナ４０の挿通空間４４がキャビティ１５に対面し、その挿通空間４４には端子金具３０の主体部３１を挿通できるから、端子金具３０がリテーナ４０と干渉することがなくキャビティ１５に挿入される。端子金具３０がキャビティ１５の奥まで挿入されると、端子金具３０の金属ランス３３が受突部２２を乗り越えてその受突部２２に係止される（図２参照）。これを一次係止という。また、このとき、端子金具３０の主体部３１がキャビティ１５の突当壁（図示せず）に突き当たって前方への位置が決められる。
【００１９】
この状態で、リテーナ４０をリテーナ挿入孔２３内に強く押し込む。すると、図６に示すように、リテーナ４０の係止空間４５内に端子金具３０の立上部３４が入り込み、端子金具３０の主体部３１の後端面３１Ｂにリテーナ４０の平板部４０Ａが対面し（図２参照）、端子金具３０がリテーナ４０によって直接に抜け止めされた二次係止状態となる。また、このとき、リテーナ４０のロック片４２がリテーナ挿入孔２３内の突起２４を乗り越えてその突起２４に係止する（図６参照）。ここで、端子金具３０が半挿入状態のときは、リテーナ４０の挿通空間４４内に端子金具３０の主体部３１が収容された状態となり、リテーナ４０が端子金具３０に干渉するから、リテーナ４０を奥まで押し込めなくなる。これにより、端子金具３０が半挿入状態である旨を検知できる。
【００２０】
最後に、インナハウジング１２をアウタハウジング１１のインナ収容孔１７の奥まで挿入する。すると、インナハウジング１２の係止突起２０Ａとアウタハウジング１１の係合孔１９Ａとが係合してインナ収容孔１７内にインナハウジング１２が抜け止めされると共に、第２防水リング２１によってアウタハウジング１１とインナハウジング１２の間の隙間が塞がれる。ここで、リテーナ４０が端子金具を抜け止めする位置にないと、リテーナ４０がインナハウジング１２の側方に突出してアウタハウジング１１と干渉するから、インナハウジング１２とアウタハウジング１１とを嵌合できず、これにより、端子金具３０がリテーナ４０によって係止されない状態のままで本コネクタが組み付けられることを防止できる。
【００２１】
そして、本コネクタを相手コネクタに嵌合させると、相手コネクタの雄タブがキャビティ１５内に挿入されて端子金具３０に電気接続され、さらに、第１防水リング１６によって両コネクタの間の隙間が塞がれる。
【００２２】
このように、本実施形態のコネクタによれば、リテーナ４０が端子金具３０を直接に抜け止めするから、強い保持力で端子金具３０を保持できる。しかも、リテーナ挿入孔２３を設けた部位をインナハウジング１２としたから、リテーナ挿入孔２３はアウタハウジング１１に覆われて外部に露出しない。つまり、本発明により、従来のサイドリテーナタイプとフロントリテーナタイプの両方の利点を併せ持ったコネクタを提供できる。また、本コネクタでは、第１防水リング１６と、第２防水リング２１と、防水ゴム栓３７とによってキャビティ１５が外部に連通する隙間が塞がれるから、端子金具３０が被水する虞がない。
【００２３】
＜他の実施形態＞
本発明は、前記実施形態に限定されるものではなく、例えば、以下に説明するような実施形態も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。
（１）前記実施形態では、防水コネクタに本発明を適用した例を示したが、非防水タイプのコネクタに適用してもよい。
（２）また、前記実施形態のコネクタは、２つの端子金具３０を収容するものであったが、端子金具の数は、１つ又は３つ以上であってもよく、その場合、例えば、各端子金具の数に対応させてリテーナに端子係止部を設ければよい。
【図面の簡単な説明】
【図１】本発明の一実施形態に係るアウタハウジングを示す側断面図
【図２】同じくインナハウジングを示す側断面図
【図３】インナとアウタとを組み付けた状態を示す側断面図
【図４】その分解斜視図
【図５】一次係止におけるリテーナの配置を示した図２のＡ−Ａ断面図
【図６】二次係止におけるリテーナの配置を示した図２のＡ−Ａ断面図
【図７】従来のサイドリテーナタイプのコネクタを示す斜視図
【図８】その部分断面図
【図９】従来のフロントリテーナタイプのコネクタを示す側断面図
【符号の説明】
１１…アウタハウジング
１２…インナハウジング
１５…キャビティ
１６…第１防水リング
２１…第２防水リング
２３…リテーナ挿入孔
３０…端子金具
４０…リテーナ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector with a retainer.
[0002]
[Prior art]
In general, a connector with a retainer includes a side retainer type (see Japanese Utility Model Laid-Open No. 6-58570) and a front retainer type (see Japanese Utility Model Laid-Open No. 5-23455 and Japanese Patent Laid-Open No. 8-250215).
In the side retainer type, as shown in FIG. 7, the retainer 3 is mounted in a direction orthogonal to the direction in which the terminal fitting 2 is inserted into the connector housing 1, and therefore the retainer insertion hole 4 is formed on the side surface of the connector housing 1. It is open. As shown in FIG. 8, this type has an advantage that the holding power of the terminal fitting is high because the retainer 3 is directly locked to the terminal fitting 2. On the other hand, in the front retainer type, as shown in FIG. 9, the retainer 5 is inserted into the connector housing 6 along the insertion direction of the terminal fitting 2, and the retainer insertion hole 7 is opened to the mating surface with the mating connector. ing. This type has the advantage that the retainer insertion hole 7 is covered with the mating connector and is not exposed to the outside.
[0003]
[Problems to be solved by the invention]
However, conventionally, there has been no connector with a retainer that combines the advantages of both types described above.
[0004]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector with a retainer that can prevent the retainer insertion hole from being exposed and that has a high holding power of the terminal fitting.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a cavity in which a terminal fitting can be inserted via a waterproof rubber plug, a retainer insertion hole orthogonal to the cavity, and a retainer insertion hole that can be inserted into the retainer insertion hole. An inner housing provided with a retainer that is positioned at the back of the terminal fitting to prevent the terminal fitting from being removed, and an inner housing hole that can accommodate the inner housing from the rear along the insertion direction of the terminal fitting. When the inner housing is housed in the inner housing hole, a portion of the retainer insertion hole that opens to the side surface of the inner housing is covered with the inner wall of the inner housing hole and is not exposed to the outside, and the front outer side of the body And an outer housing having a hood portion projecting from the main body and having a hood portion into which the mating connector can be fitted in the space between the main body In the hood portion, a first waterproof ring that seals between the mating connector and the outer peripheral surface of the main body is fitted in the hood portion, while the inner housing is provided behind the retainer insertion hole. The outer peripheral surface is characterized in that a second waterproof ring for sealing between the outer housing is fitted.
[0006]
The invention of claim 2 is characterized in that, in the connector with a retainer according to claim 1, the retainer protrudes outward from the inner housing at a position where the terminal fitting is not prevented from being removed from the retainer insertion hole. .
[0008]
[Action and effect of the invention]
According to the first aspect of the present invention, the retainer is located at the back of the retainer insertion hole and protrudes into the cavity, and faces the terminal fitting inserted into the cavity in the retaining direction. Thus, since the retainer directly prevents the terminal fitting from coming off, the terminal fitting can be held with a strong holding force. Moreover, since the portion provided with the retainer insertion hole is the inner housing, the retainer insertion hole is covered with the outer housing and is not exposed to the outside. That is, according to the present invention, it is possible to provide a connector having the advantages of both the conventional side retainer type and the front retainer type.
In addition, the first waterproof ring and the second waterproof ring close the gap where the cavity communicates with the outside, and there is no possibility of the terminal fitting being wetted.
[0009]
According to the structure of claim 2, when the retainer is not in the state of locking the terminal fitting, the retainer protrudes outward from the inner housing and interferes with the outer housing, and the inner housing and the outer housing cannot be assembled. Become. Thereby, it can prevent that this connector is assembled | attached in the state in which a terminal metal fitting is not latched by a retainer.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
The connector housing provided in the connector of the present embodiment includes an outer housing 11 (see FIG. 1) and an inner housing 12 (see FIG. 2) that can be fitted to each other.
The outer housing 11 has a front surface in which the left end surface of FIG. 1 is fitted to a mating connector (not shown), and is formed in a space 14A between the hood portion 13 protruding forward from the front surface and the main body 14 on the inner side. The mating hood provided on the mating connector is fitted and inserted to connect both connectors. A first waterproof ring 16 is fitted on the outer peripheral surface of the main body 14, and the first waterproof ring 16 is crushed between the inner peripheral surface of the mating hood part and the outer peripheral surface of the main body 14 and is in close contact with both. To do. An inner housing hole 17 for housing the inner housing 12 is formed through the body 14 in the fitting direction with the mating connector, and the inner housing 12 is inserted from an open portion on the rear side (right side in FIG. 1). Is done. Moreover, the opening part of the front side (FIG. 1 left side) of the inner accommodation hole 17 makes the tab insertion port 18, and the male tab (not shown) of a mating connector is inserted from here. Further, the rear portion of the inner housing hole 17 forms a stepped portion 19 that becomes wider over the entire circumference, and locking holes 19A and 19A are formed on the upper and lower surfaces of the rear end of the stepped portion 19. .
[0012]
On the other hand, the entire inner housing 12 is shown in FIG. 4 and has a length and a cross-sectional shape that can be accommodated in the inner housing hole 17. The rear end of the inner housing 12 corresponds to the stepped portion 19 of the outer housing 11. A flange portion 20 projecting laterally over the entire circumference is provided, and locking projections 20A and 20A for locking to the locking holes 19A and 19A are formed on the upper and lower surfaces thereof. Further, the second waterproof ring 21 is fitted on the rear side of the outer peripheral surface of the inner housing 12 so as to abut against the flange portion 20, and the second waterproof ring 21 is attached to the stepped portion 19 of the outer housing 11. It is crushed between the inner peripheral surface and adheres to both.
[0013]
The inner housing 12 is formed with a pair of cavities 15, 15 penetrating in the fitting direction with the outer housing 11, and the terminal fitting 30 is inserted therein. As shown in FIG. 2, the front side of the cavity 15 is open to the lower surface of the inner housing 12, and this open portion is closed by the inner wall of the inner insertion hole 17 (see FIG. 3). Furthermore, the opening part (reference numeral 15A in FIGS. 2 and 3) of the front surface of the cavity 15 is aligned with the tab insertion opening 18 of the outer housing 11, and the male tab is inserted into the cavity 15 therefrom.
[0014]
The terminal fitting 30 is formed by sequentially cutting and bending a conductive metal plate as shown in FIGS. 2 to 3, and the front end surface 31 </ b> A of the main body 31 formed in a rectangular parallelepiped shape is formed in the cavity 15. The abutting wall (not shown in the figure) is abutted to determine the position in the cavity 15 toward the front side (left side in FIG. 2). The front end surface 31A of the main body 31 is extended forward so that a pair of opposing pieces 32, 32 approach each other, and the male tab is sandwiched between the opposing pieces 32, 32 for electrical connection. Is done. Further, metal lances 33, 33 are extended obliquely rearward from the pair of side walls of the main body 31, and the metal lances 33, 33 are engaged with the receiving projections 22, 22 formed in the cavity 15, and the terminal fitting 30. Is prevented from coming off (see FIGS. 2 and 3).
[0015]
As shown in FIG. 2, the rear end surface 31 </ b> B of the main body portion 31 has a raised portion 34 extending rearward from the central portion thereof, and a barrel portion 35 for crimping the electric wire 36 is provided at the tip thereof. As shown in FIG. 5, the cross section of the upright portion 34 is smaller than the main body portion 31 and is just large enough to fit in a locking space 45 provided in a retainer 40 described later. As shown in FIGS. 2 to 3, a waterproof rubber plug 37 is crimped to the barrel portion 35 together with the end of the electric wire 36, and the waterproof rubber plug 37 is connected to the outer sheath of the electric wire 36 and the inner periphery of the cavity 15. It is in close contact with the surface.
[0016]
As shown in FIG. 4, a retainer insertion hole 23 is formed through the inner housing 12 so as to intersect the cavities 15 and 15 at right angles, and the intersecting portion is formed in the cavity 15 as shown in FIG. It corresponds to the upright portion 34 of the terminal fitting 30 that is in the regular accommodation state. Further, as shown in FIG. 5, the retainer insertion hole 23 has a pair of protrusions 24 and 24 projecting from the upper and lower surfaces near the opening on the right side of FIG. Lock pieces 42 and 42 are locked.
[0017]
As shown in FIG. 4, the retainer 40 has a flat plate shape that can be fitted and inserted into the retainer insertion hole 23 as a whole, and the pair of lock pieces 42 and 42 extend forward on the front surface in the insertion direction. . A pair of terminal holding portions 43, 43 are provided between the lock pieces 42, 42 of the retainer 40 and the flat plate portion 40A. The terminal holding portion 43 communicates with the insertion space 44 through which the main body portion 31 of the terminal metal fitting 30 can be inserted in the thickness direction of the retainer 40 and the insertion space 44 so that only the upright portion 34 of the terminal metal fitting 30 can be inserted. A stop space 45 is provided. Then, as shown in FIG. 5, the retainer 40 is inserted into the retainer insertion hole 23 from the left in FIG. 5, and the insertion space 44 faces the cavity 15 with the tip of the lock piece 42 abutting against the protrusion 24. The retaining space 45 faces the cavity 15 in a state where the retainer 40 is further pushed in and the lock piece 42 is engaged with the protrusion 24 as shown in FIG. Further, the retainer 40 projects from the inner housing 12 when the lock piece 42 abuts against the protrusion 24, and fits in the retainer insertion hole 23 when the lock piece 42 is engaged with the protrusion 24.
[0018]
Next, the operation of this embodiment will be described.
To assemble this connector, first, the retainer 40 is inserted into the retainer insertion hole 23 of the inner housing 12, and the lock piece 42 of the retainer 40 is brought into contact with the protrusion 24 of the retainer insertion hole 23 (see FIG. 5). Then, the insertion space 44 of the retainer 40 faces the cavity 15, and the main portion 31 of the terminal fitting 30 can be inserted into the insertion space 44, so that the terminal fitting 30 is inserted into the cavity 15 without interfering with the retainer 40. The When the terminal fitting 30 is inserted into the cavity 15, the metal lance 33 of the terminal fitting 30 gets over the receiving projection 22 and is locked to the receiving projection 22 (see FIG. 2). This is called primary locking. At this time, the main portion 31 of the terminal fitting 30 abuts against an abutting wall (not shown) of the cavity 15 to determine the forward position.
[0019]
In this state, the retainer 40 is strongly pushed into the retainer insertion hole 23. Then, as shown in FIG. 6, the upright portion 34 of the terminal fitting 30 enters the locking space 45 of the retainer 40, and the flat plate portion 40 </ b> A of the retainer 40 faces the rear end surface 31 </ b> B of the main portion 31 of the terminal fitting 30 ( 2), the terminal fitting 30 is in a secondary locking state in which the terminal fitting 30 is directly retained by the retainer 40. At this time, the lock piece 42 of the retainer 40 gets over the protrusion 24 in the retainer insertion hole 23 and is locked to the protrusion 24 (see FIG. 6). Here, when the terminal fitting 30 is in the half-inserted state, the main portion 31 of the terminal fitting 30 is accommodated in the insertion space 44 of the retainer 40, and the retainer 40 interferes with the terminal fitting 30. I can't push it all the way in. Thereby, it can be detected that the terminal fitting 30 is in the half-inserted state.
[0020]
Finally, the inner housing 12 is inserted into the inner housing hole 17 of the outer housing 11. Then, the locking projection 20 </ b> A of the inner housing 12 and the engagement hole 19 </ b> A of the outer housing 11 are engaged to prevent the inner housing 12 from falling into the inner housing hole 17, and the second waterproof ring 21 allows the outer housing 11 to be removed. And the inner housing 12 are closed. Here, if the retainer 40 is not in a position to prevent the terminal fitting from being removed, the retainer 40 protrudes to the side of the inner housing 12 and interferes with the outer housing 11, so that the inner housing 12 and the outer housing 11 cannot be fitted together. Thereby, it can prevent that this connector is assembled | attached in the state in which the terminal metal fitting 30 is not latched by the retainer 40. FIG.
[0021]
When this connector is fitted to the mating connector, the male tab of the mating connector is inserted into the cavity 15 and electrically connected to the terminal fitting 30, and the gap between the connectors is closed by the first waterproof ring 16. Can be removed.
[0022]
Thus, according to the connector of this embodiment, since the retainer 40 directly prevents the terminal fitting 30 from coming off, the terminal fitting 30 can be held with a strong holding force. In addition, since the portion provided with the retainer insertion hole 23 is the inner housing 12, the retainer insertion hole 23 is covered with the outer housing 11 and is not exposed to the outside. That is, according to the present invention, a connector having the advantages of both the conventional side retainer type and the front retainer type can be provided. Moreover, in this connector, since the gap | interval which the cavity 15 communicates outside by the 1st waterproof ring 16, the 2nd waterproof ring 21, and the waterproof rubber plug 37 is block | closed, there is no possibility that the terminal metal fitting 30 will get wet. .
[0023]
<Other embodiments>
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.
(1) In the said embodiment, although the example which applied this invention to the waterproof connector was shown, you may apply to a non-waterproof type connector.
(2) Moreover, although the connector of the said embodiment accommodated the two terminal metal fittings 30, the number of terminal metal fittings may be 1 or 3 or more, and in that case, for example, each What is necessary is just to provide a terminal latching | locking part in a retainer according to the number of terminal metal fittings.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing an outer housing according to an embodiment of the present invention. FIG. 2 is a side sectional view showing the inner housing. FIG. 3 is a side sectional view showing a state where the inner and the outer are assembled. 4 is an exploded perspective view thereof. FIG. 5 is a cross-sectional view taken along the line AA in FIG. 2 showing the arrangement of the retainer in the primary locking. FIG. 6 is a cross-sectional view taken along the line AA in FIG. FIG. 7 is a perspective view showing a conventional side retainer type connector. FIG. 8 is a partial sectional view of the connector. FIG. 9 is a side sectional view showing a conventional front retainer type connector.
DESCRIPTION OF SYMBOLS 11 ... Outer housing 12 ... Inner housing 15 ... Cavity 16 ... 1st waterproof ring 21 ... 2nd waterproof ring 23 ... Retainer insertion hole 30 ... Terminal metal fitting 40 ... Retainer

Claims (2)

防水ゴム栓を介して端子金具を挿入可能なキャビティとこのキャビティに直交するリテーナ挿入孔とこのリテーナ挿入孔に挿入可能で同リテーナ挿入孔の奥部に位置して前記端子金具を抜け止めをするリテーナとを備えたインナハウジングと、前記インナハウジングを前記端子金具の挿入方向に沿ってその後方から収容可能とするインナ収容孔を有し同インナ収容孔へインナハウジングを収容したときには前記リテーナ挿入孔における前記インナハウジングの側面に開口する部分が、前記インナ収容孔の内壁にて覆われて外部に露出させない本体とこの本体の前部外側に突設され前記本体との間の空間に相手側コネクタを嵌合可能なフード部を有するアウタハウジングとから構成されたリテーナ付きコネクタであって、
前記フード部内において前記本体の外周面には前記相手側コネクタとの間をシールする第１防水リングが嵌着される一方、前記インナハウジングにおいて前記リテーナ挿入孔より後方の外周面には前記アウタハウジングとの間をシールする第２防水リングが嵌着されていることを特徴とするリテーナ付きコネクタ。A cavity into which a terminal fitting can be inserted via a waterproof rubber plug, a retainer insertion hole orthogonal to the cavity, and a retainer insertion hole that can be inserted into the retainer insertion hole and located at the back of the retainer insertion hole to prevent the terminal fitting from coming off. An inner housing provided with a retainer, and an inner housing hole that allows the inner housing to be housed from behind in the insertion direction of the terminal fitting. When the inner housing is housed in the inner housing hole, the retainer insertion hole In the space between the main body and the main body that is not exposed to the outside, the portion that opens in the side surface of the inner housing is covered with the inner wall of the inner housing hole and is protruded outside the main body. An outer housing having a hood portion that can be fitted with a retainer connector,
A first waterproof ring that seals between the mating connector is fitted to the outer peripheral surface of the main body in the hood portion, while the outer housing is disposed on the outer peripheral surface of the inner housing behind the retainer insertion hole. A connector with a retainer, wherein a second waterproof ring for sealing between the two is fitted. 前記リテーナが、前記リテーナ挿入孔のうち前記端子金具を抜け止めしない位置で前記インナハウジングから外方に突出するようにしたことを特徴とする請求項１に記載のリテーナ付きコネクタ。2. The connector with a retainer according to claim 1, wherein the retainer protrudes outward from the inner housing at a position in the retainer insertion hole that does not prevent the terminal fitting from being detached. 3.
JP25177997A 1997-09-17 1997-09-17 Connector with retainer Expired - Fee Related JP3632811B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP25177997A JP3632811B2 (en) 1997-09-17 1997-09-17 Connector with retainer
EP98117554A EP0903814B1 (en) 1997-09-17 1998-09-16 Connector provided with a retainer
DE69828470T DE69828470T2 (en) 1997-09-17 1998-09-16 Connector with contact lock
BR9803576A BR9803576A (en) 1997-09-17 1998-09-16 Connector with retainer
CN 98119289 CN1211836A (en) 1997-09-17 1998-09-17 Connector provided with retainer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25177997A JP3632811B2 (en) 1997-09-17 1997-09-17 Connector with retainer

Publications (2)

Publication Number Publication Date
JPH1197096A JPH1197096A (en) 1999-04-09
JP3632811B2 true JP3632811B2 (en) 2005-03-23

Family

ID=17227806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25177997A Expired - Fee Related JP3632811B2 (en) 1997-09-17 1997-09-17 Connector with retainer

Country Status (5)

Country Link
EP (1) EP0903814B1 (en)
JP (1) JP3632811B2 (en)
CN (1) CN1211836A (en)
BR (1) BR9803576A (en)
DE (1) DE69828470T2 (en)

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CN110416838A (en) * 2019-08-21 2019-11-05 东莞荣瑞医疗器械有限公司 A kind of medical lead line water-proof connector

Also Published As

Publication number Publication date
JPH1197096A (en) 1999-04-09
EP0903814B1 (en) 2005-01-05
DE69828470T2 (en) 2005-12-15
DE69828470D1 (en) 2005-02-10
BR9803576A (en) 1999-10-19
EP0903814A1 (en) 1999-03-24
CN1211836A (en) 1999-03-24

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