JP7437942B2 - waterproof connector - Google Patents

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JP7437942B2
JP7437942B2 JP2020001996A JP2020001996A JP7437942B2 JP 7437942 B2 JP7437942 B2 JP 7437942B2 JP 2020001996 A JP2020001996 A JP 2020001996A JP 2020001996 A JP2020001996 A JP 2020001996A JP 7437942 B2 JP7437942 B2 JP 7437942B2
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sealing member
metal shell
waterproof connector
metal
terminal
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JP2021111496A (en
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大輔 佐々木
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Hosiden Corp
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Description

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

防水コネクタの従来例として例えば特許文献１、特許文献２がある。 Conventional examples of waterproof connectors include, for example, Patent Document 1 and Patent Document 2.

特許文献１は、コネクタの一体成形方法に関する発明である。当該方法におけるコネクタは、電線と、ターミナルと、被覆部材とを有し、被覆部材は、接続部の周囲に設けられ被覆部と接着すると共にターミナルと圧接して接続部をシールする弾性樹脂と、この弾性樹脂の周囲に設けられ弾性樹脂と接着すると共にターミナルと圧接する樹脂とを有する。当該方法は、接続部の周囲に弾性樹脂を射出成形し、被覆部と弾性樹脂とを接着させる第１工程と、この第１工程の後、弾性樹脂の周囲に弾性樹脂を押さえ込むように樹脂を射出成形し、弾性樹脂とターミナルとを圧接させて接続部をシールさせると共に弾性樹脂と樹脂とを接着させ、ターミナルと樹脂とを圧接させる第２工程とを有する。 Patent Document 1 is an invention related to a method for integrally molding a connector. The connector in this method includes an electric wire, a terminal, and a covering member, and the covering member is provided around the connecting portion and adheres to the covering portion, and also includes an elastic resin that presses against the terminal to seal the connecting portion. A resin is provided around the elastic resin and adheres to the elastic resin and is in pressure contact with the terminal. This method includes a first step of injection molding an elastic resin around the connection part and adhering the covering part to the elastic resin, and after this first step, a resin is applied around the elastic resin so as to press the elastic resin down. The method includes a second step of injection molding, bringing the elastic resin and the terminal into pressure contact to seal the connection portion, adhering the elastic resin and the resin, and bringing the terminal and the resin into pressure contact.

特許文献２のコネクタ及びコネクタの製造方法は、端子金具を樹脂モールドにより成形されたハウジング内に埋め込んだ形態のコネクタにおいて、シール性能の安定化を図ることを目的とする。当該方法は、機器側端子（端子金具）の外周に、リング状をなすゴム製のシール部材を焼き付けにより接着し、そのシール部材を包囲するように樹脂モールドにより機器側ハウジング（ハウジング）を成形している。シール手段として、機器側端子の外周面にゴム製のシール部材を焼き付けにより接着したので、シール剤を塗布する場合のような塗布量の管理を行わなくても、機器側端子と機器側ハウジングとの間をシール部材の弾性によって確実にシールできる。 The connector and connector manufacturing method of Patent Document 2 aims to stabilize sealing performance in a connector in which terminal fittings are embedded in a housing formed by resin molding. In this method, a ring-shaped rubber seal member is attached to the outer periphery of the device terminal (terminal fitting) by baking, and a device housing is formed using a resin mold so as to surround the seal member. ing. As a sealing means, a rubber sealing member is attached to the outer peripheral surface of the equipment terminal by baking, so there is no need to control the amount of application that is required when applying a sealant, and the equipment terminal and equipment housing can be connected to each other. The gap can be reliably sealed by the elasticity of the sealing member.

特許第５３０８９３５号公報Patent No. 5308935 特開２００５－１９３２１号公報Japanese Patent Application Publication No. 2005-19321

特許文献１のコネクタの一体成形方法は、棒状のターミナルの周囲に形成した弾性樹脂を押さえ込むように樹脂を射出成形することによりターミナルをシールすることを特徴としており、シール対象が棒状でなく、例えば筒状のシェルと棒状の端子の組み合わせである場合には、構造が複雑になるため、適切な成形方法とはいえない。 The method for integrally molding a connector in Patent Document 1 is characterized in that the terminal is sealed by injection molding a resin so as to press down an elastic resin formed around a rod-shaped terminal, and the object to be sealed is not a rod-shaped terminal, for example. In the case of a combination of a cylindrical shell and a rod-shaped terminal, the structure becomes complicated and this cannot be said to be an appropriate molding method.

また、特許文献２のコネクタ及びコネクタの製造方法は、機器側端子の外周にシール部材３１を焼き付けにより接着しているが、この方法では加硫接着材の塗布工程が煩雑である。 Further, in the connector and connector manufacturing method of Patent Document 2, the sealing member 31 is bonded to the outer periphery of the device-side terminal by baking, but in this method, the process of applying the vulcanized adhesive is complicated.

そこで本発明では、シェルと端子を有するコネクタにおいて、簡易なインサート成形のみで十分な防水性を確保できる防水コネクタを提供することを目的とする。 Therefore, an object of the present invention is to provide a waterproof connector having a shell and a terminal, which can ensure sufficient waterproofness only by simple insert molding.

本発明の防水コネクタは、金属シェルと、第１封止部材と、金属端子と、樹脂ボディを含む。 The waterproof connector of the present invention includes a metal shell, a first sealing member, a metal terminal, and a resin body.

金属シェルは、筒形状の金属シェルであって、その周面の一部を切り欠いてなるスリットと、切り欠かれずに残存し、スリットと対向する周面である連結部を含む。第１封止部材は、連結部の内周面と外周面を封止する。金属端子は、金属シェルに挿通される。樹脂ボディは、金属シェルの内部および外部の連結部よりもコネクタ先端方向にある所定位置まで充填され、金属シェルと第１封止部材と金属端子を一体化する。 The metal shell is a cylindrical metal shell, and includes a slit formed by cutting out a part of its circumferential surface, and a connecting portion that remains without being cut out and is a circumferential surface facing the slit. The first sealing member seals the inner circumferential surface and outer circumferential surface of the connecting portion. The metal terminal is inserted through the metal shell. The resin body is filled to a predetermined position in the direction of the distal end of the connector beyond the internal and external connecting portions of the metal shell, and integrates the metal shell, the first sealing member, and the metal terminal.

本発明の防水コネクタによれば、シェルと端子を有するコネクタにおいて、簡易なインサート成形のみで十分な防水性を確保できる。 According to the waterproof connector of the present invention, sufficient waterproofness can be ensured by simple insert molding in a connector having a shell and a terminal.

実施例１の防水コネクタの樹脂ボディの斜視図。FIG. 3 is a perspective view of the resin body of the waterproof connector of Example 1. 実施例１の防水コネクタの金属シェルの斜視図。FIG. 3 is a perspective view of the metal shell of the waterproof connector of Example 1. 実施例１の防水コネクタの金属端子の斜視図。FIG. 3 is a perspective view of a metal terminal of the waterproof connector of Example 1. 実施例１の防水コネクタの断面図。FIG. 3 is a cross-sectional view of the waterproof connector of Example 1.

以下、本発明の実施の形態について、詳細に説明する。なお、同じ機能を有する構成部には同じ番号を付し、重複説明を省略する。 Embodiments of the present invention will be described in detail below. Note that components having the same functions are given the same numbers and redundant explanations will be omitted.

以下、図１～図３を参照して、実施例１の防水コネクタの各部品について説明する。 Each component of the waterproof connector of Example 1 will be described below with reference to FIGS. 1 to 3.

図１に示すように、本実施例の防水コネクタの樹脂ボディ１１は、円筒形状の前方部１１１と、直方体形状の後方部１１２を含む。 As shown in FIG. 1, the resin body 11 of the waterproof connector of this embodiment includes a cylindrical front part 111 and a rectangular parallelepiped rear part 112.

図２に示すように、本実施例の防水コネクタの金属シェル１２は全体が長細い筒形状であって、金属シェル１２の一端（コネクタ接続側）に円筒形状の筒部１２１が形成されている。筒部１２１の周面の一部は切り欠かれてスリット１２２が形成され、スリット１２２と対向する周面である断面円弧形状の連結部１２３が切り欠かれずに残存している。連結部１２３の内周面と外周面は第１封止部材１４１により封止されている。第１封止部材１４１は、金属シェル１２をインサート成形することで形成される。第１封止部材１４１は、例えばゴム系材でよい。連結部１２３に隣接し、金属シェル１２の一端側の筒部１２１を第１の筒部１２６と呼称する。また、連結部１２３に隣接し、金属シェル１２の他端側（コネクタ接続側と反対側）の筒部１２１を第２の筒部１２７と呼称する。 As shown in FIG. 2, the metal shell 12 of the waterproof connector of this embodiment has an elongated cylindrical shape as a whole, and a cylindrical cylindrical portion 121 is formed at one end (connector connection side) of the metal shell 12. . A portion of the circumferential surface of the cylindrical portion 121 is cut out to form a slit 122, and a connecting portion 123 having an arc-shaped cross section, which is the circumferential surface facing the slit 122, remains without being cut out. The inner peripheral surface and outer peripheral surface of the connecting portion 123 are sealed by a first sealing member 141. The first sealing member 141 is formed by insert molding the metal shell 12. The first sealing member 141 may be made of, for example, a rubber-based material. The cylindrical portion 121 adjacent to the connecting portion 123 and on one end side of the metal shell 12 is referred to as a first cylindrical portion 126 . Further, the cylindrical portion 121 adjacent to the connecting portion 123 and on the other end side of the metal shell 12 (the side opposite to the connector connection side) is referred to as a second cylindrical portion 127.

第２の筒部１２７に隣接し、金属シェル１２の他端に、金属シェル１２の外側に延伸する外縁部を有する脚部１２４を含む。同図に示すように、金属シェル１２はプレス部品とすることができる。金属シェル１２をプレス部品とした場合、円筒形状の筒部１２１を形成するために、継ぎ目１２５が生じる。 Adjacent to the second cylindrical portion 127 , the other end of the metal shell 12 includes a leg portion 124 having an outer edge portion extending to the outside of the metal shell 12 . As shown in the figure, the metal shell 12 can be a pressed part. When the metal shell 12 is made into a press part, a seam 125 is created to form the cylindrical tube part 121.

図３に示すように、金属端子１３は棒状に形成され、その一端はコネクタ接続方向端である。金属端子１３の他端側に金属端子１３の外周面を封止する第２封止部材１４２が、金属端子１３をインサート成形することで形成されている。第２封止部材１４２は、例えばゴム系材でよい。金属端子１３は、金属シェル１２内に挿通される。金属端子１３はプレス部品とすることができる。 As shown in FIG. 3, the metal terminal 13 is formed into a rod shape, and one end thereof is the end in the connector connection direction. A second sealing member 142 that seals the outer peripheral surface of the metal terminal 13 is formed on the other end side of the metal terminal 13 by insert molding the metal terminal 13. The second sealing member 142 may be made of, for example, a rubber-based material. The metal terminal 13 is inserted into the metal shell 12. The metal terminal 13 can be a pressed part.

図４に示すように、樹脂ボディ１１は、金属シェル１２の内部および外部の連結部１２３よりもコネクタ先端方向にある所定位置（同図の例では、内部について位置Ｘ、外部について位置Ｙ）まで充填され、金属シェル１２と第１封止部材１４１と金属端子１３と第２封止部材１４２を一括インサート成形することで形成される。 As shown in FIG. 4, the resin body 11 extends to a predetermined position (in the example shown in the figure, position X for the inside and position Y for the outside) that is closer to the connector tip than the connecting portion 123 between the inside and outside of the metal shell 12. The metal shell 12, the first sealing member 141, the metal terminal 13, and the second sealing member 142 are formed by insert molding them all at once.

同図のＡに示すように、金属シェル１２の継ぎ目１２５は水の浸入経路となる。しかし、同図に示すように、金属シェル１２の継ぎ目１２５が連結部１２３を通らず、スリット１２２に連絡されていることにより、Ａの侵入経路は、充填された樹脂により封止される。 As shown in A of the same figure, the seam 125 of the metal shell 12 becomes a water infiltration path. However, as shown in the figure, the joint 125 of the metal shell 12 does not pass through the connecting portion 123 but is connected to the slit 122, so that the entry path of A is sealed by the filled resin.

同図のＢに示すように、金属シェル１２の外周面のうち、スリット１２２に連絡される面と、樹脂ボディ１１の隙間は水の侵入経路となる。しかし、同図に示すように、Ｂの侵入経路は、スリット１２２に連絡されていることにより、充填された樹脂により封止される。 As shown in B of the same figure, the gap between the surface of the outer circumferential surface of the metal shell 12 that is connected to the slit 122 and the resin body 11 serves as a path for water to enter. However, as shown in the figure, the intrusion path of B is connected to the slit 122 and is thus sealed by the filled resin.

同図のＣに示すように、金属シェル１２の内周面のうち、スリット１２２に連絡される面と、樹脂ボディ１１の隙間は水の侵入経路となる。しかし、同図に示すように、Ｃの侵入経路は、スリット１２２に連絡されていることにより、充填された樹脂により封止される。 As shown in C in the figure, the gap between the inner circumferential surface of the metal shell 12 that is connected to the slit 122 and the resin body 11 serves as a path for water to enter. However, as shown in the figure, the intrusion path of C is connected to the slit 122 and is thus sealed by the filled resin.

同図のＤに示すように、金属端子１３の外周面と樹脂ボディ１１の隙間は水の侵入経路となる。しかし、同図に示すように、Ｄの侵入経路は、第２封止部材１４２により封止される。 As shown in D in the figure, the gap between the outer circumferential surface of the metal terminal 13 and the resin body 11 serves as a path for water to enter. However, as shown in the figure, the entry route D is sealed by the second sealing member 142.

同図のＥに示すように、金属シェル１２の内周面のうち、連結部１２３に連絡される面と、樹脂ボディ１１の隙間は水の侵入経路となる。しかし、同図に示すように、Ｅの侵入経路は、第１封止部材１４１により封止される。 As shown in E of the figure, the gap between the inner circumferential surface of the metal shell 12 that is connected to the connecting portion 123 and the resin body 11 becomes a water intrusion route. However, as shown in the figure, the entry route of E is sealed by the first sealing member 141.

同図のＦに示すように、金属シェル１２の外周面のうち、連結部１２３に連絡される面と、樹脂ボディ１１の隙間は水の侵入経路となる。しかし、同図に示すように、Ｆの侵入経路は、第１封止部材１４１により封止される。 As shown in F in the same figure, the gap between the surface of the outer peripheral surface of the metal shell 12 that is connected to the connecting portion 123 and the resin body 11 becomes a water intrusion route. However, as shown in the figure, the entry route of F is sealed by the first sealing member 141.

＜効果＞
従来は、連結部１２３に相当する構造がなかったため、シェルの内周用の封止部材と、シェルの外周用の封止部材をそれぞれ設ける必要があり、パーツ点数の増加によるコストの増大、パーツの脱落や異物付着などが課題であったが、実施例１の防水コネクタはこの点を改善できる。 <Effect>
Conventionally, there was no structure equivalent to the connecting part 123, so it was necessary to provide a sealing member for the inner periphery of the shell and a sealing member for the outer periphery of the shell, which resulted in increased costs due to an increase in the number of parts, and However, the waterproof connector of Example 1 can improve this problem.

具体的には、実施例１の防水コネクタはスリット１２２と連結部１２３を設けたため、連結部１２３の内周面および外周面を第１封止部材１４１によりインサート成形するだけで、金属シェル１２を起因とする水の侵入経路を全て封止することができる。 Specifically, since the waterproof connector of Example 1 includes the slit 122 and the connecting portion 123, the metal shell 12 can be assembled by simply insert-molding the inner and outer peripheral surfaces of the connecting portion 123 with the first sealing member 141. All possible routes for water to enter can be sealed.

また、第２の筒部１２７を設けたことにより、連結部１２３を設けたことによるインピーダンス変動を最小限とすることができる。 Furthermore, by providing the second cylindrical portion 127, impedance fluctuations caused by providing the connecting portion 123 can be minimized.

金属端子１３の外周面を第２封止部材１４２によりインサート成形するだけで、金属端子１３を起因とする水の侵入経路を全て封止することができる。 By simply insert-molding the outer circumferential surface of the metal terminal 13 with the second sealing member 142, all routes of water intrusion caused by the metal terminal 13 can be sealed.

第１封止部材１４１、第２封止部材１４２は、インサート成形により形成することでタクトの削減、バラツキの抑制を実現でき、安定して生産できる。 By forming the first sealing member 141 and the second sealing member 142 by insert molding, it is possible to reduce the takt time and suppress variations, allowing stable production.

樹脂ボディ１１は、インサート成形により形成することでタクトの削減、バラツキの抑制を実現でき、安定して生産できる。 By forming the resin body 11 by insert molding, it is possible to reduce the takt time and suppress variations, allowing stable production.

金属シェル１２、金属端子１３をプレス部品とすることで、これらを安価に製造できる。金属シェル１２をプレス部品とすることで生じる継ぎ目１２５については、連結部１２３を通らず、スリット１２２に連絡されるように形成することにより、簡単に封止することができる。 By using the metal shell 12 and the metal terminal 13 as pressed parts, these can be manufactured at low cost. The seam 125 that occurs when the metal shell 12 is a pressed part can be easily sealed by forming it so that it communicates with the slit 122 without passing through the connecting part 123.

Claims (5)

筒形状の金属シェルであって、その周面の少なくとも半分を切り欠いてなるスリットと、切り欠かれずに残存し、前記スリットと対向する周面である連結部を含む金属シェルと、
前記連結部の内周面と外周面とを含む全周を封止する第１封止部材と、
前記金属シェルに挿通される金属端子と、
前記金属シェルの内部および外部の前記連結部よりもコネクタ先端方向にある所定位置まで充填され、前記金属シェルと前記第１封止部材と前記金属端子を一体化する樹脂ボディを含む
防水コネクタ。 A cylindrical metal shell including a slit formed by cutting out at least half of its circumferential surface, and a connecting portion remaining without being cut out and being a circumferential surface facing the slit;
a first sealing member that seals the entire circumference of the connecting portion including an inner circumferential surface and an outer circumferential surface;
a metal terminal inserted into the metal shell;
The waterproof connector includes a resin body that is filled up to a predetermined position in a direction toward a distal end of the connector from the connecting portion inside and outside the metal shell, and integrates the metal shell, the first sealing member, and the metal terminal. 請求項１に記載の防水コネクタであって、
前記金属端子の外周面を封止する第２封止部材を含み、
前記樹脂ボディは、
前記金属シェルと前記第１封止部材と前記金属端子と前記第２封止部材を一体化する
防水コネクタ。 The waterproof connector according to claim 1,
including a second sealing member that seals the outer peripheral surface of the metal terminal,
The resin body is
A waterproof connector that integrates the metal shell, the first sealing member, the metal terminal, and the second sealing member. 請求項２に記載の防水コネクタであって、
前記第１封止部材は、
前記金属シェルをインサート成形することで形成され、
前記第２封止部材は、
前記金属端子をインサート成形することで形成された
防水コネクタ。 The waterproof connector according to claim 2,
The first sealing member is
formed by insert molding the metal shell,
The second sealing member is
A waterproof connector formed by insert molding the metal terminals. 請求項２または３に記載の防水コネクタであって、
前記樹脂ボディは、
前記金属シェルと前記第１封止部材と前記金属端子と前記第２封止部材を一括インサート成形することで形成された
防水コネクタ。 The waterproof connector according to claim 2 or 3,
The resin body is
A waterproof connector formed by insert molding the metal shell, the first sealing member, the metal terminal, and the second sealing member all at once. 請求項１から４のいずれかに記載の防水コネクタであって、
前記金属シェルと前記金属端子をプレス部品とした
防水コネクタ。 The waterproof connector according to any one of claims 1 to 4,
A waterproof connector in which the metal shell and the metal terminal are pressed parts.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006066216A (en) 2004-08-26 2006-03-09 Niles Co Ltd Case for electronic unit
US20160104957A1 (en) 2014-10-10 2016-04-14 Tyco Electronics Amp Korea Ltd Connector Assembly
JP2018170196A (en) 2017-03-30 2018-11-01 ミツミ電機株式会社 connector
JP2019114523A (en) 2017-12-21 2019-07-11 モレックス エルエルシー Connector and connector assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0316224Y2 (en) * 1986-02-14 1991-04-08

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006066216A (en) 2004-08-26 2006-03-09 Niles Co Ltd Case for electronic unit
US20160104957A1 (en) 2014-10-10 2016-04-14 Tyco Electronics Amp Korea Ltd Connector Assembly
JP2018170196A (en) 2017-03-30 2018-11-01 ミツミ電機株式会社 connector
JP2019114523A (en) 2017-12-21 2019-07-11 モレックス エルエルシー Connector and connector assembly

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