JP2013229166A - Waterproof connector - Google Patents

Waterproof connector Download PDF

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Publication number
JP2013229166A
JP2013229166A JP2012099888A JP2012099888A JP2013229166A JP 2013229166 A JP2013229166 A JP 2013229166A JP 2012099888 A JP2012099888 A JP 2012099888A JP 2012099888 A JP2012099888 A JP 2012099888A JP 2013229166 A JP2013229166 A JP 2013229166A
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JP
Japan
Prior art keywords
fitting
peripheral surface
housing
waterproof connector
protrusion
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JP2012099888A
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Japanese (ja)
Inventor
Akihiro Nishio
明洋 西尾
Masaaki Tabata
正明 田端
Takeshi Aizawa
武史 相澤
Eiji Kojima
映二 児嶋
Satoshi Morikawa
悟史 森川
Kohei Takagi
康平 高木
Yoshihiro Uchiyama
義裕 内山
Kazuaki Takeda
和亜希 武田
Takashi Sotozaki
貴志 外崎
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Application filed by Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP2012099888A priority Critical patent/JP2013229166A/en
Priority to PCT/JP2013/051830 priority patent/WO2013161337A1/en
Publication of JP2013229166A publication Critical patent/JP2013229166A/en
Pending legal-status Critical Current

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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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal

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  • Connector Housings Or Holding Contact Members (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof connector that can be manufactured at low costs.SOLUTION: A waterproof connector comprises: one housing 10 in which one terminal metal fitting 30 is housed; and the other housing 40 in which the other terminal metal fitting 60 to be connected with the one terminal metal fitting 30 is housed, and that is provided with a fitting recessed part 50 to which a fitting part 20 provided to the one housing 10 is fitted. To any one of an outer peripheral surface of the fitting part 20 and an inner peripheral surface of the fitting recessed part 50, an elastically displaceable projection 25 to be adhered to a partner peripheral surface is integrally formed over the whole periphery. In addition, to the partner peripheral surface, a recessed groove 55 engaged by the projection 25 is formed over the whole periphery. A protruding end of the projection 25 can be elastically adhered to a groove bottom 56 of the recessed groove 55.

Description

本発明は、防水コネクタに関する。   The present invention relates to a waterproof connector.

従来、防水コネクタの一例として、特許文献１に記載のものが知られている。このコネクタは、互いに嵌合可能な雌ハウジングと雄ハウジングとを備えている。雌ハウジングは、雌端子が収容されたハウジング本体の前側の外周を覆うようにして大フード部が設けられた形状であり、大フード部内の基端側におけるハウジング本体の外周面にゴム製のシールリングが嵌着されている。雄ハウジングは、上記した雌ハウジングにおけるハウジング本体の前側部分が嵌合可能な小フード部が設けられた形状であり、同雄ハウジングには、雄端子がタブを小フード部内に突出した形態で収容されている。   Conventionally, the thing of patent document 1 is known as an example of a waterproof connector. The connector includes a female housing and a male housing that can be fitted to each other. The female housing has a shape in which a large hood portion is provided so as to cover the outer periphery on the front side of the housing main body in which the female terminals are accommodated, and a rubber seal is provided on the outer peripheral surface of the housing main body on the base end side in the large hood portion. A ring is fitted. The male housing has a shape in which a small hood part that can be fitted to the front part of the housing body in the female housing described above is provided, and the male terminal accommodates the male terminal in a form in which the tab protrudes into the small hood part. Has been.

そして両ハウジングは、雌ハウジングにおけるハウジング本体が雄ハウジングの小フード部内に進入する形態で嵌合されて、雌雄の端子金具同士が接続され、正規嵌合されると、シールリングが小フード部の内周面と雌ハウジングのハウジング本体の外周面との間で弾性的に挟圧されることで、両ハウジング間がシールされるようになっている。   And both housings are fitted so that the housing body in the female housing enters into the small hood part of the male housing, the male and female terminal fittings are connected to each other, and when they are properly fitted, the seal ring of the small hood part Between the inner peripheral surface and the outer peripheral surface of the housing main body of the female housing is elastically pinched, the space between the two housings is sealed.

特開２００１−３１９７２５号公報JP 2001-319725 A

上記従来の防水コネクタでは、シールリングを別部品として備える必要があり、また同シールリングを組み付ける工程も必要であるため、製造コスト上昇の要因となり、その対策が切望されていた。
本発明は上記のような事情に基づいて完成されたものであって、その目的は、安価に製造し得る防水コネクタを提供するところにある。 In the above conventional waterproof connector, it is necessary to provide a seal ring as a separate part, and a process of assembling the seal ring is also required, which causes an increase in manufacturing cost, and countermeasures have been eagerly desired.
The present invention has been completed based on the above circumstances, and an object thereof is to provide a waterproof connector that can be manufactured at low cost.

本発明の防水コネクタは、一の端子金具が収容された一のハウジングと、前記一の端子金具と接続される他の端子金具が収容され、前記一のハウジングに設けられた嵌合部が嵌合される嵌合凹部が設けられた他のハウジングとが備えられ、前記嵌合部の外周面と前記嵌合凹部の内周面とのいずれか一方には、相手の周面に密着する弾性変位可能な突条が全周に亘って一体的に形成されている構成としたところに特徴を有する。   The waterproof connector of the present invention includes a housing in which one terminal fitting is accommodated and another terminal fitting connected to the one terminal fitting, and a fitting portion provided in the one housing is fitted. And another housing provided with a fitting recess to be fitted, and either one of the outer peripheral surface of the fitting portion and the inner peripheral surface of the fitting recess has an elasticity that closely contacts the other peripheral surface It is characterized in that the displaceable protrusion is formed integrally over the entire circumference.

両ハウジングが嵌合操作されると、突条が弾性変位しつつ一のハウジングの嵌合部が他のハウジングの嵌合凹部内に嵌合され、正規嵌合されると突条が復元変位して相手の周面に対して全周に亘って密着されることで、両ハウジング間がシールされる。
シールリングに代わり、突条を、ハウジングにおける嵌合部の外周面または嵌合凹部の内周面に一体的に形成した構造であるから、部品点数と組付工数の削減が図れ、もって安価に製造することができる。 When both housings are engaged, the protrusion is elastically displaced while the fitting portion of one housing is fitted in the fitting recess of the other housing, and the protrusion is restored and displaced when properly fitted. The two housings are sealed by being in close contact with the other peripheral surface over the entire circumference.
Instead of the seal ring, the protrusions are integrally formed on the outer peripheral surface of the fitting part or the inner peripheral surface of the fitting recess in the housing, so the number of parts and assembly man-hours can be reduced, and the cost is reduced. Can be manufactured.

また、以下のような構成としてもよい。
（１）前記突条が設けられた側の周面と対向した相手の周面には、前記突条が嵌る凹溝が全周に亘って形成され、同凹溝の溝底に前記突条の突出端が弾性的に密着可能となっている。
両ハウジングが正規嵌合されると、突条が凹溝内に嵌って同突条の突出端が凹溝の溝底に対して全周に亘って弾性的に密着し、シールが採られる。凹溝に突条が嵌ることでラビリンス効果が併せて得られ、シール機能がより高められる。 The following configuration may also be used.
(1) On the other peripheral surface facing the peripheral surface on which the protrusion is provided, a concave groove into which the protrusion is fitted is formed over the entire circumference, and the protrusion is formed on the groove bottom of the concave groove. The projecting end of the can be elastically adhered.
When both housings are properly fitted, the protrusion is fitted into the groove, and the protruding end of the protrusion is elastically brought into close contact with the groove bottom of the groove to provide a seal. A labyrinth effect is obtained by fitting the protrusions into the concave grooves, and the sealing function is further enhanced.

（２）前記突条が密着される相手の周面において、前記両ハウジングが正規嵌合した場合における前記突条が密着する位置よりも嵌合方向の手前側の領域では、前記突条との干渉を低減するべく径方向に退避している。両ハウジングが正規嵌合するまでは、突条が相手の周面から逃がされた形態となって摩擦抵抗が小さく抑えられ、ひいては嵌合力を小さく抑えることができる。
（３）前記突条は合成樹脂材の二色成形によって前記ハウジングと一体的に形成されている。突条をエラストマーで成形する場合と比べて安価に製造し得る。 (2) In the area on the near side in the fitting direction from the position where the protrusions are in close contact with each other on the peripheral surface of the counterpart to which the protrusions are in close contact with each other, Retracted radially to reduce interference. Until the two housings are properly fitted, the protrusion is released from the peripheral surface of the mating member, so that the frictional resistance is kept small, and the fitting force can be kept small.
(3) The protrusion is integrally formed with the housing by two-color molding of a synthetic resin material. Compared with the case where the protrusion is formed of an elastomer, the protrusion can be manufactured at a low cost.

本発明によれば、防水構造を採るに当たって部品点数と組付工数の削減が図れ、もって安価に製造することができる。   According to the present invention, when adopting a waterproof structure, the number of parts and the number of assembling steps can be reduced, so that it can be manufactured at low cost.

本発明の一実施形態に係る雌雄のハウジングの嵌合前の状態を示す断面図Sectional drawing which shows the state before the fitting of the male and female housing which concerns on one Embodiment of this invention. 正規嵌合後の状態を示す断面図Sectional view showing the state after regular mating 図２の部分拡大図Partial enlarged view of FIG.

＜実施形態＞
以下、本発明の一実施形態を図１ないし図３に基づいて詳細に説明する。
本実施形態の防水コネクタは、図１に示すように、互いに嵌合される雌ハウジング１０（一のハウジングに相当）と、雄ハウジング４０（他のハウジングに相当）とから構成されている。以下、各ハウジング１０，４０において、嵌合端側を前方として説明する。 <Embodiment>
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.
As shown in FIG. 1, the waterproof connector of this embodiment includes a female housing 10 (corresponding to one housing) and a male housing 40 (corresponding to another housing) that are fitted to each other. Hereinafter, in each housing 10 and 40, a fitting end side is demonstrated as the front.

雌ハウジング１０は合成樹脂製であって、全体として前後方向に長い形状をなし、その内部には、雌端子３０（一の端子金具に相当）が収容される複数のキャビティ１１が横方向に並んで形成されている。各キャビティ１１の前端寄りの天井面にはランス１２が設けられているとともに、前壁１３には、相手の雄端子６０（他の端子金具に相当）のタブ６１が挿通される端子挿入口１４が開口されている。   The female housing 10 is made of synthetic resin and has a long shape in the front-rear direction as a whole, and a plurality of cavities 11 in which female terminals 30 (corresponding to one terminal fitting) are accommodated are arranged in the lateral direction. It is formed with. A lance 12 is provided on the ceiling surface near the front end of each cavity 11, and a terminal insertion port 14 through which a tab 61 of a mating male terminal 60 (corresponding to another terminal fitting) is inserted in the front wall 13. Is open.

雌端子３０は、導電性に優れた金属板によって形成され、雄端子６０のタブ６１が挿入接続される接続部３１の後端にバレル部３２が設けられた形状であり、電線Ｗｘの端末がゴム栓３５ともどもバレル部３２に圧着されて固定されている。
雌端子３０はキャビティ１１内に後方から挿入され、前壁１３に当たる正規位置まで挿入されたところでランス１２により抜け止めされ、併せてゴム栓３５がキャビティ１１の入口に嵌着されるようになっている。 The female terminal 30 is formed of a metal plate having excellent conductivity, and has a shape in which a barrel portion 32 is provided at the rear end of the connection portion 31 into which the tab 61 of the male terminal 60 is inserted and connected. The rubber plug 35 is fixed to the barrel portion 32 by being crimped.
The female terminal 30 is inserted into the cavity 11 from the rear, and when the female terminal 30 is inserted to the normal position where it hits the front wall 13, the female terminal 30 is prevented from being detached by the lance 12. Yes.

雌ハウジング１０の上面には、相手の雄ハウジング４０との間を正規嵌合状態にロックするためのロックアーム１５が設けられている。ロックアーム１５は、雌ハウジング１０の上面における幅方向の中央部で、かつ前端寄りの位置に基端を設けて後方に向けて片持ち状に延出形成されており、同基端を中心として上下方向の弾性的な揺動変位可能となっている。ロックアーム１５の上面における長さ方向の略中央部にはロック突部１６が形成されているとともに、延出端には同ロックアーム１５を強制的に弾性変位させる操作部１７が設けられている。   A lock arm 15 is provided on the upper surface of the female housing 10 to lock the mating male housing 40 in a properly fitted state. The lock arm 15 is formed at the center in the width direction on the upper surface of the female housing 10 and at a position near the front end, and is formed to extend rearward in a cantilevered manner, with the base end as the center. It can be elastically displaced in the vertical direction. A lock protrusion 16 is formed at a substantially central portion of the upper surface of the lock arm 15 in the length direction, and an operation portion 17 for forcibly elastically displacing the lock arm 15 is provided at the extended end. .

雌ハウジング１０におけるロックアーム１５の基端の形成位置から前側の部分が、嵌合部２０となっており、同嵌合部２０は詳細には、先端側が若干縮径された段付き状に形成されている。段付き部はテーパ部２２となっている。   The front portion of the female housing 10 from the position where the base end of the lock arm 15 is formed is a fitting portion 20, and the fitting portion 20 is formed in a stepped shape with a slightly reduced diameter on the distal end side. Has been. The stepped portion is a tapered portion 22.

雄ハウジング４０は合成樹脂製であって、前後方向に長い形状のハウジング本体４１の前面に、雌ハウジング１０における前端側の大部分が嵌合可能なフード部４２が形成された形状である。
ハウジング本体４１の内部には、雄端子６０が収容される複数のキャビティ４３が横方向に並んで形成されており、各キャビティ４３の前端寄りの天井面にはランス４４が設けられているとともに、前壁４６にはタブ挿通口４６Ａが開口されている。 The male housing 40 is made of synthetic resin, and has a shape in which a hood portion 42 into which most of the front end side of the female housing 10 can be fitted is formed on the front surface of a housing body 41 that is long in the front-rear direction.
Inside the housing body 41, a plurality of cavities 43 in which the male terminals 60 are accommodated are formed side by side. A lance 44 is provided on the ceiling surface near the front end of each cavity 43, and A tab insertion hole 46 </ b> A is opened in the front wall 46.

雄端子６０は、同じく導電性に優れた金属板によって形成され、一部既述したように先端にタブ６１が突出形成される一方、後端にバレル部６２が設けられた形状であり、電線Ｗｙの端末がゴム栓６５ともどもバレル部６２に圧着されて固定されている。
雄端子６０はキャビティ４３内に後方から挿入されて、タブ６１がタブ挿通口４６Ａに進入されつつ押し込まれ、タブ６１の根元部分がタブ挿通口４６Ａの口縁に当たる正規位置まで挿入されたところでランス４４により抜け止めされ、併せてゴム栓６５がキャビティ４３の入口に嵌着されるようになっている。なお、雄端子６０はリテーナ４５により二重に抜け止めされるようになっている。 The male terminal 60 is formed of a metal plate that is also excellent in conductivity, and has a shape in which a tab 61 protrudes from the front end as described above and a barrel portion 62 is provided at the rear end. The end of Wy is fixed to the barrel portion 62 by being crimped together with the rubber plug 65.
The male terminal 60 is inserted into the cavity 43 from the rear, and the tab 61 is pushed in while entering the tab insertion hole 46A. When the base portion of the tab 61 is inserted to the normal position where it hits the edge of the tab insertion opening 46A, the lance The rubber stopper 65 is fitted to the inlet of the cavity 43. The male terminal 60 is double-prevented by the retainer 45.

雄ハウジング４０のフード部４２内では、上記した雌ハウジング１０の嵌合部２０が緊密に嵌合する嵌合凹部５０が形成されている。同嵌合凹部５０は、嵌合部２０の外形形状に倣って、奥側が若干縮径された段付き状に形成されている。同じく段付き部はテーパ部５２となっている。上記のように、雄端子６０が正規位置まで挿入された場合は、タブ６１の先端が嵌合凹部５０の手前側の端縁付近まで突出するようになっている。   In the hood portion 42 of the male housing 40, a fitting recess 50 is formed in which the fitting portion 20 of the female housing 10 is closely fitted. The fitting recess 50 is formed in a stepped shape whose inner side is slightly reduced in diameter following the outer shape of the fitting portion 20. Similarly, the stepped portion is a tapered portion 52. As described above, when the male terminal 60 is inserted to the normal position, the tip of the tab 61 protrudes to the vicinity of the edge on the near side of the fitting recess 50.

フード部４２における上面の前側領域では、幅方向の中央部において前面に開口した膨出部４７が形成され、この膨出部４７内に、雌ハウジング１０に設けられたロックアーム１５が進入可能なガイド溝４８が形成され、同ガイド溝４８の天井面の前縁部には、ロックアーム１５のロック突部１６が係止される被ロック部４９が形成されている。   In the front region of the upper surface of the hood portion 42, a bulging portion 47 opened to the front surface is formed in the central portion in the width direction, and the lock arm 15 provided in the female housing 10 can enter the bulging portion 47. A guide groove 48 is formed, and a locked portion 49 to which the lock protrusion 16 of the lock arm 15 is locked is formed at the front edge portion of the ceiling surface of the guide groove 48.

さて、雌ハウジング１０の嵌合部２０、詳細には前側の小径部２１の外周面における長さ方向の中央部には、断面山形をなすシール突条２５が全周に亘って一体形成されている。
このシール突条２５は弾力性に富んでおり、山の頂上を左右に振るように弾性変位可能となっている。同シール突条２５は、雌ハウジング１０を成形するに際して二色成形によって一体的に成形されている。
材質としては、雌ハウジング１０が硬質のＰＰ（ポリプロピレン）で、シール突条２５が軟質のＰＰ、あるいは、雌ハウジング１０がガラス繊維強化タイプのＰＢＴ（ポリブチレンテレフタレート）で、シール突条２５がＰＰ、等が挙げられる。 Now, in the fitting portion 20 of the female housing 10, more specifically, in the central portion in the length direction on the outer peripheral surface of the small-diameter portion 21 on the front side, a seal protrusion 25 having a cross-sectional mountain shape is integrally formed over the entire circumference. Yes.
The seal protrusion 25 is rich in elasticity and can be elastically displaced so as to swing the top of the mountain to the left and right. The seal protrusion 25 is integrally formed by two-color molding when the female housing 10 is molded.
As for the material, the female housing 10 is made of hard PP (polypropylene), the seal protrusion 25 is soft PP, or the female housing 10 is made of glass fiber reinforced PBT (polybutylene terephthalate), and the seal protrusion 25 is PP. , Etc.

一方、雄ハウジング４０のフード部４２の奥に設けられた嵌合凹部５０、詳細には小径部５１の内周面における長さ方向の中央部には、雌ハウジング１０側のシール突条２５が嵌る凹溝５５が全周に亘って一体形成されている。
ここで、上記した雌ハウジング１０の嵌合部２０に設けられたシール突条２５の突出端の外径寸法Ｘの方が、雄ハウジング４０の嵌合凹部５０に設けられた凹溝５５の溝底５６の内径寸法Ｙよりも、所定寸法大きくなるように設定されている。 On the other hand, a seal protrusion 25 on the female housing 10 side is provided in the fitting recess 50 provided in the back of the hood portion 42 of the male housing 40, specifically, in the center portion in the length direction on the inner peripheral surface of the small diameter portion 51. The recessed groove 55 to be fitted is integrally formed over the entire circumference.
Here, the outer diameter dimension X of the protruding end of the seal protrusion 25 provided in the fitting portion 20 of the female housing 10 described above is the groove of the concave groove 55 provided in the fitting concave portion 50 of the male housing 40. The inner dimension Y of the bottom 56 is set to be larger than the predetermined dimension.

なお、嵌合凹部５０の大径部５３は、シール突条２５との干渉を低減する機能を果たしており、この実施形態では、大径部５３の内径寸法が、上記した凹溝５５の溝底５６の内径寸法Ｙと同じに設定されている。   The large diameter portion 53 of the fitting concave portion 50 functions to reduce interference with the seal protrusion 25. In this embodiment, the inner diameter dimension of the large diameter portion 53 is the groove bottom of the concave groove 55 described above. The inner diameter dimension Y is set to 56.

続いて、雌雄のハウジング１０，４０の嵌合動作の一例を説明する。
まず、図１に示すように、雌ハウジング１０のキャビティ１１に対して電線Ｗｘの端末に接続された雌端子３０をゴム栓３５ともども収容するとともに、雄ハウジング４０のキャビティ４３に対して電線Ｗｙの端末に接続された雄端子６０をゴム栓６５ともども収容する。 Next, an example of the fitting operation of the male and female housings 10 and 40 will be described.
First, as shown in FIG. 1, the female terminal 30 connected to the end of the electric wire Wx is accommodated together with the rubber plug 35 in the cavity 11 of the female housing 10, and the electric wire Wy is accommodated in the cavity 43 of the male housing 40. The male terminal 60 connected to the terminal is accommodated together with the rubber plug 65.

この状態から、図１の矢線に示すように、雌ハウジング１０を前端側から雄ハウジング４０のフード部４２内に挿入する。挿入が進むと、ロックアーム１５がガイド溝４８に進入して、ロック突部１６と被ロック部４９との係合によりロックアーム１５が弾性撓みしつつ押し込まれ、それとともに、雌ハウジング１０の嵌合部２０がフード部４２の奥の嵌合凹部５０に次第に嵌合され、雄端子６０のタブ６１が端子挿入口１４を通って雌端子３０の接続部３１内に次第に進入する。   From this state, the female housing 10 is inserted into the hood portion 42 of the male housing 40 from the front end side, as indicated by the arrow in FIG. As the insertion proceeds, the lock arm 15 enters the guide groove 48, and the lock arm 15 is pushed in while being elastically bent by the engagement between the lock projection 16 and the locked portion 49, and the female housing 10 is fitted. The mating portion 20 is gradually fitted into the fitting recess 50 at the back of the hood portion 42, and the tab 61 of the male terminal 60 gradually enters the connection portion 31 of the female terminal 30 through the terminal insertion port 14.

図２に示すように、雌ハウジング１０の嵌合部２０の前面が嵌合凹部５０の奥面に当たる正規位置まで押し込まれると、対応する雌雄の端子金具３０，６０同士が正規に接続されるとともに、ロック突部１６が被ロック部４９を通過することで、ロックアーム１５が復動変位しつつロック突部１６が被ロック部４９に係止され、雌雄のハウジング１０，４０が正規の嵌合状態にロックされる。   As shown in FIG. 2, when the front surface of the fitting portion 20 of the female housing 10 is pushed to the normal position where it hits the back surface of the fitting recess 50, the corresponding male and female terminal fittings 30, 60 are normally connected to each other. When the lock projection 16 passes through the locked portion 49, the lock arm 15 is moved backward and the lock projection 16 is locked to the locked portion 49, so that the male and female housings 10, 40 are properly fitted. Locked to state.

一方、上記のように雌ハウジング１０の嵌合部２０がフード部４２の奥の嵌合凹部５０に押し込まれる際、シール突条２５は嵌合凹部５０の大径部５３の内周面に僅かに摺接しつつ押し込まれ、途中でテーパ部５２を通過する際に、シール突条２５は突出端が嵌合方向の後方（図２の右側）に振られた姿勢に弾性変位しつつ押し込まれる。雌ハウジング１０が正規位置まで押し込まれると、シール突条２５が凹溝５５の位置に到り、シール突条２５が復動変位しつつ凹溝５５内に嵌り、図３の実線に示すように、突出端が若干右に振られた姿勢を採って、同突出端が弾縮されつつ凹溝５５の溝底５６に対して全周に亘って密着する。これにより、雌雄のハウジング１０，４０間がシールされる。   On the other hand, when the fitting portion 20 of the female housing 10 is pushed into the fitting recess 50 at the back of the hood portion 42 as described above, the seal protrusion 25 is slightly on the inner peripheral surface of the large-diameter portion 53 of the fitting recess 50. When the seal protrusion 25 is pushed while being in sliding contact with each other and passes through the taper portion 52 on the way, the seal protrusion 25 is pushed in while being elastically displaced into a posture in which the protruding end is swung rearward in the fitting direction (right side in FIG. 2). When the female housing 10 is pushed to the normal position, the seal protrusion 25 reaches the position of the concave groove 55, and the seal protrusion 25 fits into the concave groove 55 while being displaced backward, as shown by the solid line in FIG. The projecting end is slightly swung to the right, and the projecting end is in close contact with the groove bottom 56 of the recessed groove 55 while being elastically contracted. As a result, the space between the male and female housings 10 and 40 is sealed.

上記したハウジング１０，４０間のシール構造では、従来一般的であるハウジング間にゴムシールを介装するものと比べると、水密性には劣るかも知れないが、例えば当該防水コネクタを、高圧の注水等が想定されない車室内等で使用する分には、十分な防水機能を果たすことが実験等により確認されている。   The above-described seal structure between the housings 10 and 40 may be inferior in watertightness as compared with a conventional structure in which a rubber seal is interposed between the housings. It has been confirmed through experiments and the like that a sufficient waterproof function can be achieved for use in a passenger compartment or the like where no such a problem is expected.

以上のように本実施形態の防水コネクタによれば、ハウジング１０，４０間をシールする手段として、シールリングを別途備えることに代えて、雌ハウジング１０の嵌合部２０の外周面にシール突条２５を一体的に形成して、同シール突条２５を相手の嵌合凹部５０の内周面に弾性的に密着させる構造としたから、部品点数と組付工数の削減が図れ、もって安価に製造することができる。   As described above, according to the waterproof connector of the present embodiment, instead of separately providing a seal ring as a means for sealing between the housings 10 and 40, the seal protrusion on the outer peripheral surface of the fitting portion 20 of the female housing 10. 25 is integrally formed, and the seal protrusion 25 is elastically adhered to the inner peripheral surface of the mating recess 50, so that the number of parts and the number of assembling steps can be reduced, and the cost can be reduced. Can be manufactured.

また、嵌合凹部５０の内周面に凹溝５５を設け、シール突条２５が凹溝５５内に嵌って同シール突条２５の突出端が凹溝５５の溝底５６に対して全周に亘って弾性的に密着する構造としたから、ラビリンス効果が併せて得られて、シール機能がより高められる。
なお、両ハウジング１０，４０間をロックするのに、揺動変位するロックアーム１５を適用した場合は、ロック時に図２に示すように、ロックアーム１５のロック突部１６と被ロック部４９との間に図らずもクリアランスｃができるが、ロックされた後、同クリアランスｃを利用して雌ハウジング１０を後方に引き戻すと、シール突条２５が、図３の鎖線に示すように、真直姿勢に向きを変えつつその突出端が凹溝５５の溝底５６に弾性的に押し付けられる。すなわち、実線に示す振られた姿勢を採っている場合と比べて、シール突条２５の突出端の潰し量が多く採られ、その分シール機能が高められる。 Further, a concave groove 55 is provided on the inner peripheral surface of the fitting concave portion 50, the seal protrusion 25 is fitted into the concave groove 55, and the projecting end of the seal protrusion 25 has an entire circumference with respect to the groove bottom 56 of the concave groove 55. Since the structure is elastically adhered over the labyrinth, the labyrinth effect is also obtained and the sealing function is further enhanced.
When the lock arm 15 that swings and displaces is applied to lock the housings 10 and 40, the lock projection 16 and the locked portion 49 of the lock arm 15 are locked as shown in FIG. Although the clearance c can be formed during the period of time, when the female housing 10 is pulled back using the clearance c after being locked, the seal protrusion 25 is in a straight posture as shown by a chain line in FIG. The protruding end is elastically pressed against the groove bottom 56 of the concave groove 55 while changing the direction. That is, compared with the case where the swung attitude shown by the solid line is taken, a larger amount of crushing of the protruding end of the seal protrusion 25 is taken, and the sealing function is enhanced accordingly.

本実施形態では、シール突条２５について、合成樹脂材の二色成形によって雌ハウジング１０と一体的に形成したから、例えばシール突条２５をエラストマーで成形する場合と比べて安価に製造することができる。   In this embodiment, since the seal protrusion 25 is formed integrally with the female housing 10 by two-color molding of a synthetic resin material, for example, the seal protrusion 25 can be manufactured at a lower cost than when the seal protrusion 25 is formed of an elastomer. it can.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
（１）上記実施形態とは逆に、シール突条を雄ハウジングの嵌合凹部の内周面に、凹溝を雌ハウジングの嵌合部の外周面にそれぞれ形成するようにしてもよい。
（２）シール突条を雌ハウジングの嵌合部の外周面または雄ハウジングの嵌合凹部の内周面に形成する場合において、共に嵌合方向の後端寄りの位置に形成すると、嵌合動作の終盤で初めてシール突条が相手の周面と摺接するようにでき、それだけ摩擦抵抗を受ける領域を短くできることで、嵌合力を小さく抑えることができる。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) Contrary to the above embodiment, the seal protrusion may be formed on the inner peripheral surface of the fitting recess of the male housing, and the concave groove may be formed on the outer peripheral surface of the fitting portion of the female housing.
(2) When the seal protrusion is formed on the outer peripheral surface of the mating portion of the female housing or the inner peripheral surface of the mating recess of the male housing, if both are formed at a position near the rear end in the mating direction, the mating operation is performed. For the first time in the final stage, the seal protrusion can be brought into sliding contact with the peripheral surface of the other party, and the region receiving the frictional resistance can be shortened accordingly, so that the fitting force can be kept small.

（３）シール突条を設けた周面と対向した相手の周面には、必ずしも凹溝を設ける必要はなく、シール突条を相手の周面に直接に押し付ける構造であってもよい。
（４）本発明は上記実施形態に示した嵌合構造の防水コネクタに限らず、要は、一対のハウジングにおける互いに対向した嵌合周面の間に全周に亘ってシール部を介装することで、ハウジング間をシールする形式の防水コネクタ全般に広く適用することができる。 (3) It is not always necessary to provide a concave groove on the peripheral surface of the counterpart facing the peripheral surface provided with the seal ridge, and the structure may be such that the seal ridge is pressed directly against the peripheral surface of the counterpart.
(4) The present invention is not limited to the waterproof connector having the fitting structure shown in the above-described embodiment. In short, the seal portion is interposed over the entire circumference between the fitting peripheral surfaces facing each other in the pair of housings. Thus, it can be widely applied to all types of waterproof connectors that seal between the housings.

１０…雌ハウジング（一のハウジング）
１１…キャビティ
２０…嵌合部
２１…小径部
２５…シール突条（突条）
３０…雌端子（一の端子金具）
４０…雄ハウジング（他のハウジング）
４１…ハウジング本体
４２…フード部
４３…キャビティ
５０…嵌合凹部
５１…小径部
５３…大径部
５５…凹溝
５６…溝底
６０…雄端子（他の端子金具） 10. Female housing (one housing)
DESCRIPTION OF SYMBOLS 11 ... Cavity 20 ... Fitting part 21 ... Small diameter part 25 ... Seal protrusion (protrusion)
30 ... Female terminal (one terminal fitting)
40 ... Male housing (other housing)
DESCRIPTION OF SYMBOLS 41 ... Housing main body 42 ... Hood part 43 ... Cavity 50 ... Fitting recessed part 51 ... Small diameter part 53 ... Large diameter part 55 ... Groove groove 56 ... Groove bottom 60 ... Male terminal (other terminal metal fittings)

Claims (4)

一の端子金具が収容された一のハウジングと、
前記一の端子金具と接続される他の端子金具が収容され、前記一のハウジングに設けられた嵌合部が嵌合される嵌合凹部が設けられた他のハウジングとが備えられ、
前記嵌合部の外周面と前記嵌合凹部の内周面とのいずれか一方には、相手の周面に密着する弾性変位可能な突条が全周に亘って一体的に形成されていることを特徴とする防水コネクタ。 One housing containing one terminal fitting;
Other terminal fittings connected to the one terminal fitting are accommodated, and provided with another housing provided with a fitting recess into which a fitting portion provided in the one housing is fitted,
Either one of the outer peripheral surface of the fitting portion and the inner peripheral surface of the fitting recess is integrally formed with an elastically displaceable ridge that is in close contact with the other peripheral surface. Waterproof connector characterized by that. 前記突条が設けられた側の周面と対向した相手の周面には、前記突条が嵌る凹溝が全周に亘って形成され、同凹溝の溝底に前記突条の突出端が弾性的に密着可能となっていることを特徴とする請求項１記載の防水コネクタ。 On the other peripheral surface facing the peripheral surface on the side where the ridge is provided, a concave groove is formed over the entire circumference, and the protruding end of the ridge is formed on the groove bottom of the concave groove. The waterproof connector according to claim 1, wherein the connector is elastically close. 前記突条が密着される相手の周面において、前記両ハウジングが正規嵌合した場合における前記突条が密着する位置よりも嵌合方向の手前側の領域では、前記突条との干渉を低減するべく径方向に退避していることを特徴とする請求項１または請求項２記載の防水コネクタ。 In the peripheral surface of the mating part where the ridges are in close contact with each other, the interference with the ridges is reduced in a region closer to the fitting direction than the position where the ridges are in close contact when both housings are properly fitted. 3. The waterproof connector according to claim 1, wherein the waterproof connector is retracted in a radial direction as much as possible. 前記突条は合成樹脂材の二色成形によって前記ハウジングと一体的に形成されていることを特徴とする請求項１ないし請求項３のいずれか一項に記載の防水コネクタ。 The waterproof connector according to any one of claims 1 to 3, wherein the protrusion is formed integrally with the housing by two-color molding of a synthetic resin material.
JP2012099888A 2012-04-25 2012-04-25 Waterproof connector Pending JP2013229166A (en)

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JP2012099888A JP2013229166A (en) 2012-04-25 2012-04-25 Waterproof connector
PCT/JP2013/051830 WO2013161337A1 (en) 2012-04-25 2013-01-29 Water-resistant connector

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Publication number Priority date Publication date Assignee Title
CN109478740A (en) * 2016-06-15 2019-03-15 矢崎总业株式会社 The manufacturing method of waterproof connector structure and connector shell

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JP6298673B2 (en) * 2014-03-20 2018-03-20 矢崎総業株式会社 Connector waterproof structure
JP2022135441A (en) * 2021-03-05 2022-09-15 株式会社オートネットワーク技術研究所 connector

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JP3422488B2 (en) * 2001-01-22 2003-06-30 株式会社畑屋製作所 Plug waterproof cover, guide for attaching the waterproof cover, and method of attaching the plug waterproof cover
JP4713380B2 (en) * 2006-03-24 2011-06-29 タイコエレクトロニクスジャパン合同会社 Waterproof squib connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109478740A (en) * 2016-06-15 2019-03-15 矢崎总业株式会社 The manufacturing method of waterproof connector structure and connector shell
US10566732B2 (en) 2016-06-15 2020-02-18 Yazaki Corporation Waterproof connector structure and method for producing connector housing

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