JP2008171636A - Waterproof connector - Google Patents

Waterproof connector Download PDF

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Publication number
JP2008171636A
JP2008171636A JP2007002582A JP2007002582A JP2008171636A JP 2008171636 A JP2008171636 A JP 2008171636A JP 2007002582 A JP2007002582 A JP 2007002582A JP 2007002582 A JP2007002582 A JP 2007002582A JP 2008171636 A JP2008171636 A JP 2008171636A
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terminal
insertion hole
electric wire
wire insertion
holder
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JP2007002582A
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JP4768641B2 (en
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Chikahiro Yoshioka
近弘 吉岡
Yasuaki Nakayama
康秋 中山
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof connector into which a terminal can be inserted easily and in which a waterproof plug can be suppressed from being damaged. <P>SOLUTION: At a part except the part opposing to a terminal projection part 2a of a terminal 2 out of the rear end part of the waterproof plug 30 interposed between a holder 40 and an insulation housing 20 in an elastically deformed state, a tapered insertion-side guiding-in part 35 is installed which is inclined to the direction separated from the terminal 2 inserted into a first wire insertion hole 34 as going backward from the inner peripheral surface of the first wire insertion hole 34 and which guides this terminal 2 into the first wire insertion hole 34, and at the part opposing to the terminal projection part 2a out of the rear end part of this waterproof plug 30, an insertion-side recess 36 is installed which is recessed in the projecting direction of the terminal projection part 2a from the inner peripheral surface of the first wire insertion hole 34 at an angle larger than the inclination angle of the insertion-side guiding-in part 35 while at the holder 40, a holder side convex part 46 is installed which is inserted into the insertion-side recess 36 by projecting forward from its front face 42a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、電線が接続された端子が挿入される端子収容室内への浸水を防止する防水栓を備えた防水コネクタに関するものである。   The present invention relates to a waterproof connector provided with a waterproof plug that prevents water from entering a terminal accommodating chamber into which a terminal to which an electric wire is connected is inserted.

従来、自動車用ワイヤハーネス等に適用されるコネクタとしては、防水性能を有したいわゆる防水コネクタが各種開発されている。   Conventionally, various so-called waterproof connectors having waterproof performance have been developed as connectors applied to automobile wire harnesses and the like.

例えば特許文献１には、図９に示されるように、外周面から一方向に突出するスタビライザー１０２ａを有し電線１が接続される端子２と、この端子２を保持する絶縁ハウジング１２０と、防水栓１３０と、ホルダー１４０とを備えた防水コネクタ１１０が開示されている。   For example, in Patent Document 1, as shown in FIG. 9, a terminal 2 having a stabilizer 102 a protruding in one direction from an outer peripheral surface, to which an electric wire 1 is connected, an insulating housing 120 holding the terminal 2, and waterproofing A waterproof connector 110 including a plug 130 and a holder 140 is disclosed.

前記絶縁ハウジング１２０には前記電線１が接続された端子２が挿入される複数の端子収容室１２４が設けられており、防水栓１３０とホルダー１４０には、前記端子２が挿通可能な第一電線挿通孔１３４および第二電線挿通孔１４４がそれぞれ前記端子収容室１２４に対応するように複数設けられている。また、前記防水栓１３０の後端部分には、電線１の挿入時にこの電線１を案内するテーパ状の誘い込み部１３５が形成されている。   The insulating housing 120 is provided with a plurality of terminal accommodating chambers 124 into which the terminals 2 connected to the electric wires 1 are inserted, and the waterproof plug 130 and the holder 140 are first electric wires through which the terminals 2 can be inserted. A plurality of insertion holes 134 and second electric wire insertion holes 144 are provided so as to correspond to the terminal accommodating chambers 124 respectively. In addition, a tapered guiding portion 135 for guiding the electric wire 1 when the electric wire 1 is inserted is formed at the rear end portion of the waterproof plug 130.

この防水コネクタ１１０では、前記電線１が接続された端子２は、防水栓１３０が絶縁ハウジング１２０とホルダー１４０との間で弾性変形した状態にて、前記第二電線挿通孔１４４に挿通された後、前記誘い込み部１３５に案内されつつ前記第一電線挿通孔１３４に挿通される。その後、この端子２は、さらに前記端子収容室１２４に挿入され前記絶縁ハウジング１３０に保持される。そして、前記防水栓１３０の第一電線挿通孔１３４の内周面と電線１の外周面とが密着することによって、この第一電線挿通孔１３４から前記端子収容室１２４への水の浸入が防止される。
特開２０００−８２５２９号公報 In this waterproof connector 110, the terminal 2 to which the electric wire 1 is connected is inserted into the second electric wire insertion hole 144 in a state where the waterproof plug 130 is elastically deformed between the insulating housing 120 and the holder 140. The first wire insertion hole 134 is inserted while being guided by the guide portion 135. Thereafter, the terminal 2 is further inserted into the terminal accommodating chamber 124 and held by the insulating housing 130. Then, when the inner peripheral surface of the first electric wire insertion hole 134 of the waterproof plug 130 and the outer peripheral surface of the electric wire 1 are in close contact with each other, the intrusion of water from the first electric wire insertion hole 134 into the terminal accommodating chamber 124 is prevented. Is done.
JP 2000-82529 A

前記の防水コネクタ１１０では、防水栓１３０の第一電線挿通孔１３４に端子２が挿入される際に、その挿入初期においてこの端子２がこじられるようにして第一電線挿通孔１３４に挿入され易い。この場合、前記端子２に設けられたスタビライザー１０２ａ等の端子突起部によって前記誘い込み部１３５が損傷してしまうおそれがある。   In the waterproof connector 110, when the terminal 2 is inserted into the first electric wire insertion hole 134 of the waterproof plug 130, the terminal 2 is easily inserted into the first electric wire insertion hole 134 at the initial insertion stage. . In this case, the lead-in portion 135 may be damaged by a terminal protrusion such as a stabilizer 102 a provided on the terminal 2.

本発明は、このような事情に鑑み、前記スタビライザー等の端子突起部による防水栓の損傷をより確実に抑えつつ、電線の挿通を容易にできる防水コネクタの提供を目的とする。   In view of such circumstances, an object of the present invention is to provide a waterproof connector that can easily insert an electric wire while more reliably suppressing damage to the waterproof plug due to the terminal protrusion of the stabilizer or the like.

前記課題を解決するための手段として、本発明は、電線が接続される端子と、当該端子を保持する絶縁ハウジングと、当該絶縁ハウジングの後方の位置でこの絶縁ハウジングに固定されるホルダーと、弾性部材からなり、前記ホルダーと前記絶縁ハウジングとの間に弾性変形した状態で介在する防水栓とを備え、前記端子は、その外周面の一部から所定の方向に突出する端子突起部を有し、前記絶縁ハウジングは、前記端子が後方から挿入可能な端子収容室を有し、前記防水栓は、前記端子収容室と対応する位置に設けられて、前記端子が後方から挿通される第一電線挿通孔と、この防水栓の後端部分のうち前記端子突起部と対向する部分以外の部分に設けられて、前記第一電線挿通孔の内周面から後方に向かうに従ってこの第一電線挿通孔に挿入された端子から離間する方向に傾斜し、前記端子の挿通時に当該端子を前記第一電線挿通孔に案内するテーパ状の挿入側誘い込み部と、この防水栓の後端部分のうち前記端子突起部と対向する部分に設けられて、前記挿入側誘い込み部の傾斜角度よりも大きな角度で前記第一電線挿通孔の内周面から前記端子突起部の突出方向に凹む挿入側凹部とを有し、前記ホルダーは、前記第一電線挿通孔と対応する位置に設けられて、前記端子を挿通可能な第二電線挿通孔と、当該第二電線挿通孔が開口する前面から前方に向けて突出するとともに前記挿入側凹部に挿入されるホルダー側凸部とを有することを特徴とする防水コネクタを提供する（請求項１）。   As means for solving the above problems, the present invention includes a terminal to which an electric wire is connected, an insulating housing that holds the terminal, a holder that is fixed to the insulating housing at a position behind the insulating housing, and an elastic member. A waterproof plug interposed between the holder and the insulating housing in an elastically deformed state, and the terminal has a terminal projection protruding in a predetermined direction from a part of an outer peripheral surface thereof. The insulating housing has a terminal accommodating chamber into which the terminal can be inserted from the rear, the waterproof plug is provided at a position corresponding to the terminal accommodating chamber, and the first electric wire through which the terminal is inserted from the rear The first electric wire insertion hole is provided in a portion other than the insertion hole and a portion of the rear end portion of the waterproof plug that is opposed to the terminal protrusion, and is directed rearward from the inner peripheral surface of the first electric wire insertion hole. A tapered insertion side guiding portion that is inclined in a direction away from the inserted terminal and guides the terminal to the first electric wire insertion hole when the terminal is inserted, and the terminal protrusion of the rear end portion of the waterproof plug An insertion-side recess that is provided in a portion facing the portion and is recessed from the inner peripheral surface of the first wire insertion hole at an angle larger than the inclination angle of the insertion-side lead-in portion in the protruding direction of the terminal protrusion. The holder is provided at a position corresponding to the first electric wire insertion hole, and protrudes forward from a second electric wire insertion hole through which the terminal can be inserted, and a front surface where the second electric wire insertion hole opens. And a holder-side convex portion to be inserted into the insertion-side concave portion.

このような構成によれば、前記端子の挿入時に、防水栓に設けられた前記挿入側誘い込み部により端子を第一電線挿通孔に案内しつつ、前記端子突起部による防水栓の損傷をより確実に抑制することが可能になる。   According to such a configuration, when the terminal is inserted, the terminal is guided to the first electric wire insertion hole by the insertion side guide portion provided in the waterproof plug, and the waterproof plug is more reliably damaged by the terminal protrusion. Can be suppressed.

すなわち、前記防水栓の後端部分のうち前記端子突起部と対向する部分以外の部分には、前記第一電線挿通孔の内周面から後方に向かうに従って傾斜するテーパ状の挿入側誘い込み部が設けられているため、この挿入側誘い込み部に沿って端子を挿入することでこの端子をスムーズに第一電線挿通孔に挿入することができる。一方、前記防水栓の後端部分のうち前記端子突起部と対向する部分には、前記第一電線挿通孔の内周面から前記端子突起部の突出方向に凹み、その凹み具合が前記挿入側誘い込み部の傾斜角度よりも大きくなるような挿入側凹部が設けられているので、前記端子の第一電線挿通孔への挿入開始時に端子をこじ入れねばならない場合であっても、この端子突起部と防水栓との接触を抑制することができ、当該端子突起部による防水栓の損傷をより確実に抑制することが可能となる。   That is, in the rear end portion of the waterproof plug other than the portion facing the terminal protrusion, there is a tapered insertion side lead-in portion that is inclined toward the rear from the inner peripheral surface of the first electric wire insertion hole. Since it is provided, the terminal can be smoothly inserted into the first electric wire insertion hole by inserting the terminal along the insertion side guide portion. On the other hand, in the rear end portion of the waterproof plug, the portion facing the terminal protrusion is recessed in the protruding direction of the terminal protrusion from the inner peripheral surface of the first wire insertion hole, and the degree of the recess is the insertion side. Since the insertion-side concave portion that is larger than the inclination angle of the guiding portion is provided, even if the terminal has to be inserted at the start of insertion into the first electric wire insertion hole, this terminal projection portion And the waterproof plug can be suppressed, and damage to the waterproof plug by the terminal protrusion can be more reliably suppressed.

また、前記ホルダーには、その前面から前方に突出し前記挿入側凹部に挿入されるホルダー側凸部が設けられているので、このホルダー側凸部により前記挿入側凹部と前記端子突起部との接触をさらに確実に回避することができる。   Further, since the holder is provided with a holder-side convex portion that protrudes forward from the front surface thereof and is inserted into the insertion-side concave portion, the holder-side convex portion makes contact between the insertion-side concave portion and the terminal projection portion. Can be avoided more reliably.

また本発明において、前記ホルダー側凸部の側面のうち前記端子突起部に対向する面が、前記ホルダーの前記第二電線挿通孔の内側面のうち前記端子突起部と対向する面と面一であるのが好ましい（請求項２）。   Moreover, in this invention, the surface which faces the said terminal protrusion part among the side surfaces of the said holder side convex part is flush with the surface which opposes the said terminal protrusion part among the inner surfaces of the said 2nd electric wire penetration hole of the said holder. It is preferable (Claim 2).

この構造では、前記端子を、前記端子突起部が前記第二電線挿通孔の内側面と、前記ホルダー側凸部の側面のうち前記端子突起部に対向する面とに沿うようにして、前記第二電線挿通孔および第一電線挿通孔に挿入することができる。従って、端子の姿勢を安定させた状態でこの端子の挿入作業を行うことが可能になる。   In this structure, the terminal is arranged such that the terminal protrusion is along the inner surface of the second electric wire insertion hole and the surface of the holder-side convex portion that faces the terminal protrusion. It can insert in a 2 electric wire penetration hole and a 1st electric wire penetration hole. Therefore, the terminal can be inserted while the terminal posture is stabilized.

また、本発明は、電線が接続される端子と、当該端子を保持する絶縁ハウジングと、当該絶縁ハウジングの後方の位置でこの絶縁ハウジングに固定されるホルダーと、弾性部材からなり、前記ホルダーと前記絶縁ハウジングとの間に弾性変形した状態で介在する防水栓とを備え、前記端子は、その外周面の一部から所定の方向に突出する端子突起部を有し、前記絶縁ハウジングは、前記端子が後方から挿入可能な端子収容室を有し、前記防水栓は、前記端子収容室と対応する位置に設けられて、前記端子が後方から挿通される第一電線挿通孔と、この防水栓の前端部分のうち前記端子突起部と対向する部分以外の部分に設けられて、前記第一電線挿通孔の内周面から前方に向かうに従ってこの第一電線挿通孔に挿入された端子から離間する方向に傾斜し、前記端子の抜出時に当該端子を前記第一電線挿通孔に案内するテーパ状の抜出側誘い込み部と、この防水栓の前端部分のうち前記端子突起部と対向する部分に設けられて、前記抜出側誘い込み部の傾斜角度よりも大きな角度で前記第一電線挿通孔の内周面から前記端子突起部の突出方向に凹む抜出側凹部とを有し、前記絶縁ハウジングは、前記端子収容室が開口する後面から後方に向けて突出するとともに前記抜出側凹部に挿入されるハウジング側凸部を有することを特徴とする防水コネクタを提供する（請求項３）。   Further, the present invention comprises a terminal to which an electric wire is connected, an insulating housing that holds the terminal, a holder that is fixed to the insulating housing at a position behind the insulating housing, and an elastic member. A waterproof plug interposed between the insulating housing and the insulating housing in an elastically deformed state, the terminal having a terminal protrusion protruding in a predetermined direction from a part of an outer peripheral surface thereof, and the insulating housing including the terminal Has a terminal accommodating chamber that can be inserted from the rear, and the waterproof plug is provided at a position corresponding to the terminal accommodating chamber, the first electric wire insertion hole through which the terminal is inserted from the rear, and the waterproof plug One that is provided in a portion of the front end portion other than the portion facing the terminal protrusion, and is separated from the terminal inserted into the first wire insertion hole as it goes forward from the inner peripheral surface of the first wire insertion hole. And a tapered lead-in portion that guides the terminal to the first wire insertion hole when the terminal is pulled out, and a portion of the front end portion of the waterproof plug that faces the terminal protrusion. An extraction side recess recessed in the protruding direction of the terminal projection from the inner peripheral surface of the first wire insertion hole at an angle larger than the inclination angle of the extraction side guiding portion, A waterproof connector is provided that has a housing-side convex portion that protrudes rearward from the rear surface of the terminal accommodating chamber and that is inserted into the extraction-side concave portion (Claim 3).

このような構成によれば、前記端子の抜出時に、前記防水栓に設けられた抜出側誘い込み部により端子を第一電線挿通孔に案内しつつ、前記端子突起部による防水栓の損傷をより確実に抑制することが可能になる。   According to such a configuration, when the terminal is withdrawn, the waterproof plug is damaged by the terminal protrusion while the terminal is guided to the first electric wire insertion hole by the extraction side guiding portion provided in the waterproof plug. It becomes possible to suppress more reliably.

すなわち、前記防水栓の前端部分のうち前記端子突起部と対向する部分以外の部分には、前記第一電線挿通孔の内周面から前方に向かうに従って傾斜するテーパ状の抜出側誘い込み部が設けられているため、この抜出側誘い込み部に沿って端子を抜出することでこの端子をスムーズに第一電線挿通孔へと案内することができる。一方、前記防水栓の前端部分のうち前記端子突起部と対向する部分には、前記第一電線挿通孔の内周面から前記端子突起部の突出方向に凹み、その凹み具合が前記抜出側誘い込み部の傾斜角度よりも大きくなるような抜出側凹部が設けられているので、前記端子の第一電線挿通孔への抜出開始時に端子をこじらねばならない場合であっても、この端子突起部と防水栓との接触を抑制することができ、当該端子突起部による防水栓の損傷をより確実に抑制することが可能となる。   That is, in the front end portion of the waterproof plug, the portion other than the portion facing the terminal projection has a tapered extraction side guide portion that is inclined toward the front from the inner peripheral surface of the first electric wire insertion hole. Since it is provided, this terminal can be smoothly guided to the first electric wire insertion hole by extracting the terminal along the extraction side guiding portion. On the other hand, a portion of the front end portion of the waterproof plug that faces the terminal protrusion is recessed in the protruding direction of the terminal protrusion from the inner peripheral surface of the first electric wire insertion hole, and the degree of the recess is the extraction side. Since the extraction side recess is provided so as to be larger than the inclination angle of the lead-in part, even if the terminal has to be squeezed at the start of extraction into the first electric wire insertion hole, this terminal protrusion The contact between the portion and the waterproof plug can be suppressed, and damage to the waterproof plug by the terminal protrusion can be more reliably suppressed.

また、前記絶縁ハウジングには、その後面から後方に突出し前記抜出側凹部に挿入されるハウジング側凸部が設けられているので、このハウジング側凸部により前記抜出側凹部と前記端子突起部との接触をさらに確実に回避することができる。   Further, since the insulating housing is provided with a housing-side convex portion that protrudes rearward from the rear surface thereof and is inserted into the extraction-side concave portion, the extraction-side concave portion and the terminal projection portion are formed by the housing-side convex portion. Can be more reliably avoided.

また、前記防水コネクタにおいて、前記ハウジング側凸部の側面のうち前記端子突起部に対向する面が、前記絶縁ハウジングの前記端子収容室の内側面のうち前記端子突起部と対向する面と面一であるのが好ましい（請求項４）。   Further, in the waterproof connector, a surface of the side surface of the housing-side convex portion that faces the terminal protrusion is flush with a surface of the inner surface of the terminal housing chamber that faces the terminal protrusion. (Claim 4).

この構造では、前記端子を、前記端子突起部が前記端子収容室の内側面と前記ハウジング側凸部の側面のうち前記端子突起部に対向する面とに沿うようにして、前記第二電線挿通孔および第一電線挿通孔に挿入することができる。従って、端子の姿勢を安定させた状態でこの端子の抜出作業を行うことが可能になる。   In this structure, the second wire insertion portion is configured such that the terminal protrusion is along the inner surface of the terminal accommodating chamber and the surface of the housing-side convex portion that faces the terminal protrusion. It can be inserted into the hole and the first electric wire insertion hole. Therefore, it is possible to perform the extraction operation of the terminal with the terminal posture being stabilized.

以上のように、本発明によれば、端子の挿入が容易で防水栓の損傷をより確実に抑止することのできる防水コネクタを提供することができる。   As described above, according to the present invention, it is possible to provide a waterproof connector in which a terminal can be easily inserted and damage to the waterproof plug can be more reliably suppressed.

本発明に係る防水コネクタの実施形態について図面を参照しながら説明する。   An embodiment of a waterproof connector according to the present invention will be described with reference to the drawings.

図１は、本発明に係る防水コネクタの分解断面図である。この図に示すように、本防水コネクタ１０は、電線１が接続される金属製の端子２と、樹脂等からなる絶縁ハウジング２０およびホルダー４０と、弾性部材からなる防水栓３０とを有している。   FIG. 1 is an exploded cross-sectional view of a waterproof connector according to the present invention. As shown in the figure, the waterproof connector 10 includes a metal terminal 2 to which the electric wire 1 is connected, an insulating housing 20 and a holder 40 made of resin, and a waterproof plug 30 made of an elastic member. Yes.

前記端子２は、図１に示すように、下方に向けて突出する端子突起部２ａと、相手側端子金具と接続される電気接触部２ｄと、基板２ｃと、電線１に圧着されるバレル部２ｅと、後述する端子保持部２２と係合する被係止部２ｆとを有している。この端子２は、図２に示すように、導電性の金属板が前記基板２ｃを底壁として折り曲げられることにより形成される。この金属板には、その長手方向と垂直な方向に外側に向かって突出する端子突起部２ａとこの端子突起部２ａと係合可能な係止孔２ｂが設けられており、この金属板をこれら端子突起部２ａおよび係止孔２ｂを係合させるように折り曲げることで、前記電気接触部２ｄが箱状に形成される。このとき、前記端子突起部２ａは図１等に示すように、前記電気接触部２ｄの外周面から一方向に突出するように組み立てられる。また、前記基板２ｃ上に電線１を載置し、前記バレル部２ｅをそれぞれこの電線１に圧着させるようにして折り曲げることで、電線１がこの端子２に固定される。   As shown in FIG. 1, the terminal 2 includes a terminal protrusion 2 a that protrudes downward, an electric contact portion 2 d that is connected to the mating terminal fitting, a substrate 2 c, and a barrel portion that is crimped to the electric wire 1. 2e and a locked portion 2f that engages with a terminal holding portion 22 to be described later. As shown in FIG. 2, the terminal 2 is formed by bending a conductive metal plate with the substrate 2c as a bottom wall. The metal plate is provided with a terminal projection 2a that protrudes outward in a direction perpendicular to the longitudinal direction, and a locking hole 2b that can be engaged with the terminal projection 2a. The electric contact portion 2d is formed in a box shape by bending the terminal protrusion portion 2a and the locking hole 2b so as to engage with each other. At this time, the terminal protrusion 2a is assembled so as to protrude in one direction from the outer peripheral surface of the electric contact portion 2d, as shown in FIG. Further, the electric wire 1 is placed on the substrate 2c, and the barrel portion 2e is bent so as to be crimped to the electric wire 1, whereby the electric wire 1 is fixed to the terminal 2.

前記絶縁ハウジング２０は、前記電線１が接続された端子２を相手方コネクタと接続可能なように保持するためのものである。この絶縁ハウジング２０には、複数の端子収容室２４と、複数の端子保持部２２と、収容壁２６と、複数のハウジング側凸部２８とが設けられている。   The insulating housing 20 is for holding the terminal 2 to which the electric wire 1 is connected so that it can be connected to the mating connector. The insulating housing 20 is provided with a plurality of terminal accommodating chambers 24, a plurality of terminal holding portions 22, an accommodating wall 26, and a plurality of housing-side convex portions 28.

前記端子収容室２４は、前記端子２を収容するためのものであり、各端子収容室２４の下方には前記端子保持部２２が設けられている。そして、この端子収容室２４に挿入された端子２は、その下方に設けられた前記被係止部２ｆと前記端子保持部２２とが係合することによりこの絶縁ハウジング２０に保持される。   The terminal accommodating chamber 24 is for accommodating the terminal 2, and the terminal holding portion 22 is provided below each terminal accommodating chamber 24. Then, the terminal 2 inserted into the terminal accommodating chamber 24 is held by the insulating housing 20 when the locked portion 2f provided below and the terminal holding portion 22 are engaged.

前記収容壁２６は、その内側に前記防水栓３０およびホルダー４０を収容するためのものである。この収容壁２６は、前記端子収容室２４の端子挿入口２４ａが開口する後面２６ａよりも後方に延びて、略筒状を有している。この収容壁２６の下方には、後述するホルダー４０のホルダー被係止突起４２ｃと係合するホルダー係止孔２６ｃが設けられている。そして、このホルダー被係止突起４２ｃとホルダー係止孔２６ｃとが係合することで、ホルダー４０が防水栓３０を前記後面２６ａに押圧した状態で絶縁ハウジング２０に固定されるようになっている。   The accommodating wall 26 is for accommodating the waterproof plug 30 and the holder 40 inside thereof. The housing wall 26 has a substantially cylindrical shape extending rearward from the rear surface 26a where the terminal insertion port 24a of the terminal housing chamber 24 is opened. A holder locking hole 26c that engages with a holder locked protrusion 42c of a holder 40, which will be described later, is provided below the housing wall 26. The holder-engaged protrusion 42c and the holder-engaging hole 26c engage with each other so that the holder 40 is fixed to the insulating housing 20 with the waterproof plug 30 pressed against the rear surface 26a. .

前記ハウジング側凸部２８は、後述する防水栓３０の抜出側凹部３８に挿入され、前記端子突起部２ａと防水栓３０との接触を抑制するためのものである。このハウジング側凸部２８は、それぞれ前記後面２６ａのうち前記端子収容室２４の端子挿入口２４ａの開口部分付近に設けられて、この後面２６ａから後方に向けて突出する形状を有している。また、このハウジング側凸部２８は、その側面のうち前記端子突起部２ａと対向する面２８ａが、前記端子収容室２４の内側面のうち前記端子突起部２ａと対向する面と面一になるような形状を有している。すなわち、前記端子２を挿入あるいは抜出する際に、端子突起部２ａが前記ハウジング側凸部２８の面２８ａと前記端子収容室２４の内側面に沿って安定して移動できるようになっている。   The housing-side convex portion 28 is inserted into an outlet-side concave portion 38 of the waterproof plug 30 to be described later, and suppresses contact between the terminal protrusion 2a and the waterproof plug 30. Each of the housing-side convex portions 28 is provided in the vicinity of the opening portion of the terminal insertion port 24a of the terminal accommodating chamber 24 in the rear surface 26a, and has a shape protruding rearward from the rear surface 26a. Further, the housing-side convex portion 28 has a side surface 28 a facing the terminal projection portion 2 a on the side surface thereof and a surface facing the terminal projection portion 2 a on the inner side surface of the terminal accommodating chamber 24. It has such a shape. That is, when the terminal 2 is inserted or removed, the terminal protrusion 2a can be stably moved along the surface 28a of the housing-side convex portion 28 and the inner side surface of the terminal accommodating chamber 24. .

前記防水栓３０は、合成ゴム等の弾性部材からなり、弾性変形することで前記端子収容室２４内に水が浸入しないようにするためのものである。この防水栓３０は、前記収容壁２６の内側に収容されるような形状に形成されており、前記絶縁ハウジング２０の後面２６ａとホルダー４０との間で弾性変形した状態で介在する。この防水栓３０には、前記電線１が接続された端子２が挿通可能な複数の第一電線挿通孔３４が、前記端子収容室２４に対応して複数設けられている。この第一電線挿通孔３４の孔径は、少なくともこの防水栓３０が前記のように弾性変形した状態にて、電線１および端子２の外径よりも小さくなるような大きさであり、この孔径を変形させつつ端子２および電線１が挿通されることで、前記第一電線挿通孔３４の内周面と電線１の外周面とが密着するようになっている。そして、この密着により、この第一電線挿通孔３４の内周面と電線１の外周面との隙間から端子収容室２４側への水の浸入が抑制される。   The waterproof plug 30 is made of an elastic member such as synthetic rubber, and prevents the water from entering the terminal accommodating chamber 24 by elastic deformation. The waterproof plug 30 is formed in a shape that can be housed inside the housing wall 26, and is interposed between the rear surface 26 a of the insulating housing 20 and the holder 40 while being elastically deformed. The waterproof plug 30 is provided with a plurality of first electric wire insertion holes 34 through which the terminals 2 connected to the electric wires 1 can be inserted, corresponding to the terminal accommodating chambers 24. The diameter of the first electric wire insertion hole 34 is such that at least the waterproof plug 30 is elastically deformed as described above, and is smaller than the outer diameter of the electric wire 1 and the terminal 2. By inserting the terminal 2 and the electric wire 1 while being deformed, the inner peripheral surface of the first electric wire insertion hole 34 and the outer peripheral surface of the electric wire 1 are brought into close contact with each other. And by this close_contact | adherence, the penetration | invasion of the water to the terminal storage chamber 24 side from the clearance gap between the inner peripheral surface of this 1st electric wire penetration hole 34 and the outer peripheral surface of the electric wire 1 is suppressed.

また、前記防水栓３０は、前記のように弾性変形した状態にて、その外周面が前記絶縁ハウジング２０の収容壁２６の内周面と密着するような形状を有している。そして、この密着により、防水栓３０と前記収容壁２６の内周面との隙間から端子収容室２４側への水の浸入が抑制される。   Further, the waterproof plug 30 has a shape such that the outer peripheral surface thereof is in close contact with the inner peripheral surface of the housing wall 26 of the insulating housing 20 in a state of being elastically deformed as described above. And by this close_contact | adherence, permeation of the water from the clearance gap between the waterproof plug 30 and the internal peripheral surface of the said storage wall 26 to the terminal storage chamber 24 side is suppressed.

また、図４の（ａ），（ｂ）に示すように、前記防水栓３０の前端部分には、抜出側誘い込み部３７と、抜出側凹部３８とが形成されており、この防水栓３０の後端部分には、挿入側誘い込み部３５と、挿入側凹部３６とが形成されている。   As shown in FIGS. 4A and 4B, the front end portion of the waterproof plug 30 is formed with an extraction side guiding portion 37 and an extraction side recess 38, and this waterproof plug The rear end portion 30 is formed with an insertion side guiding portion 35 and an insertion side recess 36.

前記抜出側誘い込み部３７は、図８に示すように端子２が前記端子収容室２４に収容されるとともに前記第一電線挿通孔３４に電線１が挿通された状態から、この端子２を外部に抜出する際に、この端子２を第一電線挿通孔３４に案内するためのものである。この抜出側誘い込み部３７は、防水栓３０の前端部分のうち前記端子突起部２ａと対向する部分以外の部分に設けられている。そして、この第一電線挿通孔３４の内周面から前方に向かうに従って端子２と離間する方向に傾斜するテーパ状を有している。   As shown in FIG. 8, the extraction side lead-in part 37 is configured to remove the terminal 2 from the state in which the terminal 2 is accommodated in the terminal accommodating chamber 24 and the electric wire 1 is inserted into the first electric wire insertion hole 34. This is for guiding the terminal 2 to the first electric wire insertion hole 34 when being pulled out. The extraction side guiding portion 37 is provided in a portion of the front end portion of the waterproof plug 30 other than the portion facing the terminal protrusion 2a. And it has the taper shape which inclines in the direction away from the terminal 2 as it goes ahead from the inner peripheral surface of this 1st electric wire insertion hole 34. As shown in FIG.

前記抜出側凹部３８は、前記端子２の抜出時に、この端子２に設けられた前記端子突起部２ａと防水栓３０との接触を回避するためのものである。この抜出側凹部３８は、防水栓３０の前端部分のうち前記抜出側誘い込み部３７が設けられていない部分、すなわち、前記端子突起部２ａと対向する部分に設けられている。そして、前記第一電線挿通孔３４の内周面から前記抜出側誘い込み部３７の傾斜角度よりも大きな角度で前記端子突起部２ａの突出方向に凹む形状を有している。   The extraction side recess 38 is for avoiding contact between the terminal protrusion 2 a provided on the terminal 2 and the waterproof plug 30 when the terminal 2 is extracted. The extraction side recess 38 is provided in a portion of the front end portion of the waterproof plug 30 where the extraction side guide portion 37 is not provided, that is, a portion facing the terminal projection 2a. And it has the shape dented in the protrusion direction of the said terminal protrusion part 2a at an angle larger than the inclination angle of the said extraction side lead-in part 37 from the internal peripheral surface of said 1st electric wire penetration hole 34. As shown in FIG.

本実施形態では、この抜出側凹部３８は、第一電線挿通孔３４の内周面から前方に向かうに従って前記端子突起部２ａの突出方向に傾斜するテーパ形状を有するテーパ部分３８ａと、このテーパ部分３８ａの内周面から前記端子突起部２ａの突出方向に凹む段部３８ｂとから形成されている。そして、図８等に示すように、前記絶縁ハウジング２０のハウジング側凸部２８がこの段部３８ｂにはまり込むようになっている。   In the present embodiment, the extraction-side recess 38 includes a tapered portion 38a having a tapered shape that inclines in the protruding direction of the terminal protrusion 2a from the inner peripheral surface of the first electric wire insertion hole 34 toward the front, and the taper. The step portion 38b is recessed from the inner peripheral surface of the portion 38a in the protruding direction of the terminal protrusion 2a. As shown in FIG. 8 and the like, the housing-side convex portion 28 of the insulating housing 20 is fitted into the stepped portion 38b.

一方、前記挿入側誘い込み部３５は、図６に示すように防水栓３０が前記絶縁ハウジング２０の後面２６ａとホルダー４０との間で弾性変形した状態、すなわち、前記第一電線挿通孔３４の孔径が電線１等の径よりも小さい状態で、電線１に接続された端子２をこの第一電線挿通孔３４に挿入する際に、この端子２を第一電線挿通孔３４に案内するためのものである。この挿入側誘い込み部３５は、防水栓３０の後端部分のうち前記端子突起部２ａと対向する部分以外の部分に設けられている。そして、この第一電線挿通孔３４の内周面から後方に向かうに従って前記端子２と離間する方向に傾斜するテーパ状を有している。   On the other hand, the insertion side guiding portion 35 is in a state where the waterproof plug 30 is elastically deformed between the rear surface 26a of the insulating housing 20 and the holder 40, that is, the diameter of the first electric wire insertion hole 34, as shown in FIG. When the terminal 2 connected to the electric wire 1 is inserted into the first electric wire insertion hole 34 with the diameter being smaller than the diameter of the electric wire 1 or the like, the terminal 2 is guided to the first electric wire insertion hole 34. It is. The insertion side guiding portion 35 is provided in a portion other than the portion facing the terminal protrusion 2 a in the rear end portion of the waterproof plug 30. And it has the taper shape which inclines in the direction away from the said terminal 2 as it goes back from the internal peripheral surface of this 1st electric wire insertion hole 34. As shown in FIG.

また、前記挿入側凹部３６は、前記端子２の挿入時に、この端子２に設けられた前記端子突起部２ａと防水栓３０との接触を回避するためのものである。この挿入側凹部３６は、防水栓３０の後端部分のうち前記挿入側誘い込み部３５が設けられていない部分、すなわち、前記端子突起部２ａと対向する部分に設けられている。そして、前記第一電線挿通孔３４の内周面から前記挿入側誘い込み部３５の傾斜角度よりも大きな角度で前記端子突起部２ａの突出方向に凹む形状を有している。   The insertion-side recess 36 is for avoiding contact between the terminal protrusion 2 a provided on the terminal 2 and the waterproof plug 30 when the terminal 2 is inserted. The insertion-side recess 36 is provided in a portion of the rear end portion of the waterproof plug 30 where the insertion-side lead-in portion 35 is not provided, that is, a portion facing the terminal protrusion 2a. And it has the shape dented in the protrusion direction of the said terminal protrusion part 2a at an angle larger than the inclination angle of the said insertion side guiding part 35 from the internal peripheral surface of said 1st electric wire penetration hole 34. As shown in FIG.

本実施形態では、この挿入側凹部３６は、第一電線挿通孔３４の内周面から後方に向かうに従って前記端子突起部２ａの突出方向に傾斜するテーパ形状を有するテーパ部分３６ａと、このテーパ部分３６ａの内周面から前記端子突起部２ａの突出方向に凹む段部３６ｂとから形成されている。そして、図８等に示すように、後述するホルダー４０のホルダー側凸部４６がこの段部３６ｂにはまり込むようになっている。   In the present embodiment, the insertion-side recess 36 includes a tapered portion 36a having a tapered shape that inclines in the protruding direction of the terminal protruding portion 2a from the inner peripheral surface of the first electric wire insertion hole 34 toward the rear, and the tapered portion. A step portion 36b that is recessed from the inner peripheral surface of 36a in the protruding direction of the terminal protrusion 2a is formed. And as shown in FIG. 8 etc., the holder side convex part 46 of the holder 40 mentioned later fits in this step part 36b.

前記ホルダー４０は、前記防水栓３０を絶縁ハウジング２０の後面２６ａに押し付けて弾性変形させるためのものである。このホルダー４０は、前記絶縁ハウジング２０の収容壁２６の内側に収容されるような形状を有しており、本体部４２と、ホルダー側凸部４６とを有している。   The holder 40 is for pressing the waterproof plug 30 against the rear surface 26a of the insulating housing 20 to be elastically deformed. The holder 40 has a shape that can be accommodated inside the accommodation wall 26 of the insulating housing 20, and has a main body portion 42 and a holder-side convex portion 46.

前記本体部４２は、前記防水栓３０を後方から覆うような略板状部材であり、その前面４２ａで防水栓３０の後端面を押圧している。この本体部４２には、防水栓３０の前記第一電線挿通孔３４と対応する位置に、電線１が接続された端子２が挿通可能な複数の第二電線挿通孔４４が形成されている。また、この本体部４２の下方には、絶縁ハウジング２０に設けられたホルダー係止孔２６ｃと係合可能なホルダー被係止突起４２ｃが設けられている。そして、このホルダー係止孔２６ｃとホルダー被係止突起４２ｃとが係合することで、前記防水栓３０が前記本体部４２の前面４２ａと絶縁ハウジングの後面２６ａとの間で弾性変形した状態で保持される。   The main body 42 is a substantially plate-like member that covers the waterproof plug 30 from the rear, and presses the rear end surface of the waterproof plug 30 with the front surface 42a. A plurality of second electric wire insertion holes 44 through which the terminals 2 connected to the electric wires 1 can be inserted are formed in the main body portion 42 at positions corresponding to the first electric wire insertion holes 34 of the waterproof plug 30. A holder-engaged protrusion 42 c that can be engaged with a holder-engaging hole 26 c provided in the insulating housing 20 is provided below the main body 42. The waterproof stopper 30 is elastically deformed between the front surface 42a of the main body 42 and the rear surface 26a of the insulating housing by engaging the holder locking hole 26c with the holder locked protrusion 42c. Retained.

前記ホルダー側凸部４６は、前記防水栓３０の挿入側凹部３６に挿入されて、前記端子突起部２ａと防水栓３０との接触を抑制するためのものである。このホルダー側凸部４６は、それぞれ前記本体部４２の前面４２ａのうち前記第二電線挿通孔４４の開口部分付近に設けられて、この前面４２ａから前方に向けて突出する形状を有している。また、このホルダー側凸部４６は、その側面のうち前記端子突起部２ａと対向する側の面４６ａが、前記第二電線挿通孔４４の内側面のうち前記端子突起部２ａと対向する部分とほぼ面一になるような形状を有している。すなわち、端子２を挿入する際に、この端子２の端子突起部２ａがこの第二電線挿通孔４４の内側面とホルダー側凸部４６の面４６ａに沿って安定して移動できるようになっている。   The holder-side convex portion 46 is inserted into the insertion-side concave portion 36 of the waterproof plug 30 to suppress contact between the terminal protrusion 2a and the waterproof plug 30. Each of the holder-side convex portions 46 is provided in the front surface 42a of the main body portion 42 in the vicinity of the opening portion of the second electric wire insertion hole 44 and has a shape protruding forward from the front surface 42a. . Further, the holder-side convex portion 46 has a side 46a on the side facing the terminal projection 2a and a portion on the inner side of the second electric wire insertion hole 44 facing the terminal projection 2a. It has a shape that is substantially flush. That is, when the terminal 2 is inserted, the terminal protrusion 2a of the terminal 2 can move stably along the inner surface of the second electric wire insertion hole 44 and the surface 46a of the holder-side convex portion 46. Yes.

次に、以上の構成要素を組み付ける方法について説明する。   Next, a method for assembling the above components will be described.

まず、図６に示すように、前記絶縁ハウジング２０の収容壁２６の内側に、防水栓３０およびホルダー４０を収容し、ホルダー４０のホルダー被係止突起４２ｃと前記収容壁２６のホルダー係止孔２６ｃとを係合する。このとき、前記防水栓３０は、前記絶縁ハウジング２０の後面２６ａおよびハウジング側凸部２８の後面と、前記ホルダー４０の本体部４２の前面４２ａおよびホルダー側凸部４６の前面とにより挟持されて弾性変形する。   First, as shown in FIG. 6, the waterproof plug 30 and the holder 40 are accommodated inside the accommodation wall 26 of the insulating housing 20, and the holder engagement protrusion 42 c of the holder 40 and the holder engagement hole of the accommodation wall 26. 26c is engaged. At this time, the waterproof plug 30 is elastically sandwiched between the rear surface 26a of the insulating housing 20 and the rear surface of the housing-side convex portion 28 and the front surface 42a of the main body portion 42 of the holder 40 and the front surface of the holder-side convex portion 46. Deform.

次に、図７の（ａ）に示すように、電線１が接続された端子２を、ホルダー４０の第二電線挿通孔４４に挿入する。このとき、前記端子突起部２ａをホルダー４０の第二電線挿通孔４４の内側面およびホルダー側凸部４６の面４６ａに沿わせつつ、端子２を挿入していく。   Next, as shown in FIG. 7A, the terminal 2 to which the electric wire 1 is connected is inserted into the second electric wire insertion hole 44 of the holder 40. At this time, the terminal 2 is inserted while the terminal protrusion 2 a is along the inner surface of the second electric wire insertion hole 44 of the holder 40 and the surface 46 a of the holder-side convex portion 46.

次に、前記第二電線挿通孔４４に挿通された端子２を、その前端部分のうち前記端子突起部２ａが設けられた部分以外の部分で前記テーパ状の挿入側誘い込み部３５を徐々に拡径しつつ第一電線挿通孔３４に挿入する。このようにして端子２を図７の（ｂ）に示す状態まで挿入すると、端子２の前端部分のうち前記端子突起部２ａが設けられた部分が防水栓３０と接触するので、端子２を、その前端部分によって前記のように挿入側誘い込み部３５を拡径するとともに前記挿入側凹部３６のテーパ部分３６ａを拡径しつつ図７の（ｃ）に示す状態まで挿入する。この状態では、前記端子突起部２ａはホルダー側凸部４６の面４６ａに当接しており、防水栓３０との接触が回避されている。   Next, the terminal 2 inserted through the second electric wire insertion hole 44 is gradually expanded in the tapered insertion side lead-in portion 35 at a portion other than the portion provided with the terminal protrusion 2a in the front end portion thereof. It inserts in the 1st electric wire penetration hole 34, diametering. Thus, when the terminal 2 is inserted to the state shown in FIG. 7B, the portion of the front end portion of the terminal 2 provided with the terminal protrusion 2a comes into contact with the waterproof plug 30. The insertion side guide 35 is expanded by the front end portion as described above, and the taper portion 36a of the insertion side recess 36 is expanded to the state shown in FIG. In this state, the terminal protrusion 2 a is in contact with the surface 46 a of the holder-side convex portion 46, so that contact with the waterproof plug 30 is avoided.

次に、前記端子２をさらに前方に挿入し、端子突起部２ａを第一電線挿通孔３４に挿入する。ここで、前述のように端子２を図７の（ｃ）に示すような位置まで挿入すると、端子２の外周部分に防水栓３０が密着するため、この端子２はこの防水栓３０によって安定して支持される。また、この状態では、前記第一電線挿通孔３４が端子２の前端部分によって十分に拡径されている。従って、端子突起部２ａを前記のように第一電線挿通孔３４に挿入しても、この端子突起部２ａにより防水栓３０を損傷することなく端子２を挿入することができる。   Next, the terminal 2 is further inserted forward, and the terminal protrusion 2 a is inserted into the first electric wire insertion hole 34. Here, as described above, when the terminal 2 is inserted to the position shown in FIG. 7C, the waterproof plug 30 is brought into close contact with the outer peripheral portion of the terminal 2, so that the terminal 2 is stabilized by the waterproof plug 30. Supported. In this state, the diameter of the first electric wire insertion hole 34 is sufficiently expanded by the front end portion of the terminal 2. Therefore, even if the terminal protrusion 2a is inserted into the first electric wire insertion hole 34 as described above, the terminal 2 can be inserted without damaging the waterproof plug 30 by the terminal protrusion 2a.

端子２を第一電線挿通孔３４に挿入した後は、さらにこの端子２を前方に移動させて、図８に示すように、端子２の前記被係止部２ｆが前記端子保持部２２に保持されるまで端子収容室２４に挿入する。   After the terminal 2 is inserted into the first electric wire insertion hole 34, the terminal 2 is further moved forward so that the locked portion 2f of the terminal 2 is held by the terminal holding portion 22 as shown in FIG. Until it is inserted into the terminal accommodating chamber 24.

ここで、前記防水栓３０の第一電線挿通孔３４に電線１を挿通させると、前記防水栓３０の第一電線挿通孔３４の内周面がこの第一電線挿通孔３４に挿通された電線１の外周面に密着し、この第一電線挿通孔３４の内周面と電線１の外周面との隙間から端子収容室２４内への水の浸入が回避可能となる。また、前記防水栓３０の外周面と前記絶縁ハウジング２０の収容壁２６の内周面とが密着することで、この防水栓３０の外周面と収容壁２６の内周面との隙間から端子収容室２４内への水の浸入が抑制される。   Here, when the electric wire 1 is inserted into the first electric wire insertion hole 34 of the waterproof plug 30, the inner peripheral surface of the first electric wire insertion hole 34 of the waterproof plug 30 is inserted into the first electric wire insertion hole 34. 1 is in close contact with the outer peripheral surface of the first electric wire insertion hole 34, and the ingress of water into the terminal accommodating chamber 24 through the gap between the inner peripheral surface of the first wire insertion hole 34 and the outer peripheral surface of the electric wire 1 can be avoided. Further, since the outer peripheral surface of the waterproof plug 30 and the inner peripheral surface of the housing wall 26 of the insulating housing 20 are in close contact with each other, the terminal is accommodated from the gap between the outer peripheral surface of the waterproof plug 30 and the inner peripheral surface of the housing wall 26. Intrusion of water into the chamber 24 is suppressed.

次に、このようにして端子収容室２４に収容された端子２を抜出する方法について説明する。   Next, a method for extracting the terminal 2 accommodated in the terminal accommodating chamber 24 in this way will be described.

まず、前記端子保持部２２と端子２の被係止部２ｆの係合状態を所定の治具等を用いて解除する。次に、端子２に接続される電線１を後方に引っ張る。   First, the engagement state of the terminal holding portion 22 and the locked portion 2f of the terminal 2 is released using a predetermined jig or the like. Next, the electric wire 1 connected to the terminal 2 is pulled backward.

接続された電線１が引っ張られた端子２は、その端子突起部２ａが端子収容室２４の内側面およびハウジング側凸部２８の面２８ａに沿うようにして後方に移動する。そして、この端子２は、前記防水栓３０の抜出側誘い込み部３７によって防水栓３０の第一電線挿通孔３４に案内され、この抜出側誘い込み部３７を拡径しつつ第一電線挿通孔３４に侵入する。このとき、端子２の端子突起部２ａは前記ハウジング側凸部２８上にあるので、前記電線１を無理やり引っ張ったとしても、この端子突起部２ａによる防水栓３０の損傷が回避される。   The terminal 2 to which the connected electric wire 1 is pulled moves rearward so that the terminal protrusion 2a is along the inner surface of the terminal accommodating chamber 24 and the surface 28a of the housing-side convex portion 28. The terminal 2 is guided to the first electric wire insertion hole 34 of the waterproof plug 30 by the extraction side guiding portion 37 of the waterproof plug 30, and the first electric wire insertion hole while expanding the diameter of the extraction side guiding portion 37. 34. At this time, since the terminal protrusion 2a of the terminal 2 is on the housing-side convex portion 28, even if the electric wire 1 is forcibly pulled, damage to the waterproof plug 30 by the terminal protrusion 2a is avoided.

さらに電線１を引っ張ると、この電線１に接続された端子２は、前記のように抜出側誘い込み部３７に案内されるとともに、前記端子突起部２ａが設けられた側の前端部分が前記抜出側凹部３８のテーパ部分３８ａに案内されて、前記第一電線挿通孔３４内に移動する。そして、この端子２は、前記第一電線挿通孔３４およびホルダー４０に設けられた第二電線挿通孔４４を通って外部に抜出される。   When the electric wire 1 is further pulled, the terminal 2 connected to the electric wire 1 is guided to the extraction side guiding portion 37 as described above, and the front end portion on the side where the terminal protrusion 2a is provided is connected to the extraction side. It is guided by the taper portion 38 a of the outlet recess 38 and moves into the first electric wire insertion hole 34. The terminal 2 is extracted outside through the first electric wire insertion hole 34 and the second electric wire insertion hole 44 provided in the holder 40.

以上のように、本防水コネクタ１０によれば、前記防水栓３０の後端部分のうち前記端子突起部２ａと対向する部分以外の部分に、前記第一電線挿通孔３４の内周面から後方に向かうに従って傾斜するテーパ状の挿入側誘い込み部３５が設けられているため、この挿入側誘い込み部３５に沿って端子２を挿入することでこの端子２をスムーズに第一電線挿通孔３４に挿入することができる。一方、前記防水栓３０の後端部分のうち前記端子突起部２ａと対向する部分には、前記第一電線挿通孔３４の内周面から前記端子突起部２ａの突出方向に凹み、その凹み具合が前記挿入側誘い込み部３５の傾斜角度よりも大きくなるような挿入側凹部３６が設けられているので、前記端子２の第一電線挿通孔３４への挿入開始時に端子２をこじ入れねばならない場合であっても、この端子突起部２ａと防水栓３０との接触を抑制することができ、当該端子突起部２ａによる防水栓３０の損傷をより確実に抑制することが可能となる。また、前記ホルダー４０には、その前面４２ａから前方に突出し前記挿入側凹部３６に挿入されるホルダー側凸部４６が設けられているので、このホルダー側凸部４６により前記挿入側凹部３６と前記端子突起部２ａとの接触をさらに確実に回避することができる。   As described above, according to the waterproof connector 10, the rear end portion of the waterproof plug 30 is not rearward from the inner peripheral surface of the first electric wire insertion hole 34 except for the portion facing the terminal protrusion 2 a. Since the tapered insertion side lead-in portion 35 that is inclined toward the direction is provided, the terminal 2 is smoothly inserted into the first electric wire insertion hole 34 by inserting the terminal 2 along the insertion-side lead-in portion 35. can do. On the other hand, a portion of the rear end portion of the waterproof plug 30 facing the terminal protrusion 2a is recessed from the inner peripheral surface of the first electric wire insertion hole 34 in the protruding direction of the terminal protrusion 2a, and the condition of the recess When the insertion of the terminal 2 into the first electric wire insertion hole 34 is started, since the insertion side recess 36 is provided so as to be larger than the inclination angle of the insertion side guiding portion 35. Even so, the contact between the terminal projection 2a and the waterproof plug 30 can be suppressed, and damage to the waterproof plug 30 by the terminal projection 2a can be more reliably suppressed. Further, since the holder 40 is provided with a holder-side convex portion 46 that protrudes forward from the front surface 42a and is inserted into the insertion-side concave portion 36, the holder-side convex portion 46 and the insertion-side concave portion 36 and the Contact with the terminal protrusion 2a can be avoided more reliably.

また、前記のように、前記ホルダー側凸部４６を、その側面のうち前記端子突起部２ａに対向する面４６ａが、前記第一電線挿通孔３４の内側面のうち前記端子突起部２ａと対向する面と面一となるような形状とすれば、前記端子突起部２ａをこのホルダー側凸部４６の面４６ａと第一電線挿通孔３４の内側面とに沿わせつつ、端子２を挿入することができるので、端子２の姿勢を安定させた状態でこの端子２の挿入作業を行うことができる。その結果、端子２をより容易に第一電線挿通孔３４に挿入することが可能になる。   Further, as described above, the surface 46a of the holder-side convex portion 46 that faces the terminal projection 2a on the side surface thereof faces the terminal projection 2a on the inner side surface of the first electric wire insertion hole 34. If the shape is such that it is flush with the surface to be connected, the terminal 2 is inserted while the terminal protrusion 2a is along the surface 46a of the holder-side convex portion 46 and the inner side surface of the first wire insertion hole 34. Therefore, the terminal 2 can be inserted in a state in which the posture of the terminal 2 is stabilized. As a result, the terminal 2 can be more easily inserted into the first electric wire insertion hole 34.

また、前記防水コネクタ１０では、前記防水栓３０の前端部分のうち前記端子突起部２ａと対向する部分以外の部分に、前記第一電線挿通孔３４の内周面から前方に向かうに従って傾斜するテーパ状の抜出側誘い込み部３７が設けられているため、この抜出側誘い込み部３７に沿って端子２を抜出することでこの端子２をスムーズに第一電線挿通孔３４へと案内することができる。一方、前記防水栓３０の前端部分のうち前記端子突起部２ａと対向する部分には、前記第一電線挿通孔３４の内周面から前記端子突起部２ａの突出方向に凹み、その凹み具合が前記抜出側誘い込み部３７の傾斜角度よりも大きくなるような抜出側凹部３８が設けられているので、前記端子２の第一電線挿通孔３４への抜出開始時に端子２をこじらねばならない場合であっても、この端子突起部２ａと防水栓３０との接触を抑制することができ、当該端子突起部２ａによる防水栓３０の損傷をより確実に抑制することが可能となる。また、前記絶縁ハウジング２０には、その後面２６ａから後方に突出し前記抜出側凹部３８に挿入されるハウジング側凸部２８が設けられているので、このハウジング側凸部２８により前記抜出側凹部３８と前記端子突起部２ａとの接触をさらに確実に回避することができる。   Further, in the waterproof connector 10, a taper that inclines toward the front from the inner peripheral surface of the first electric wire insertion hole 34 in a portion other than the portion facing the terminal protrusion 2 a in the front end portion of the waterproof plug 30. Since the lead-out side lead-in part 37 is provided, the terminal 2 is smoothly guided to the first wire insertion hole 34 by pulling out the terminal 2 along the lead-out side lead-in part 37. Can do. On the other hand, a portion of the front end portion of the waterproof plug 30 that faces the terminal protrusion 2a is recessed from the inner peripheral surface of the first wire insertion hole 34 in the protruding direction of the terminal protrusion 2a. Since the extraction side recess 38 is provided so as to be larger than the inclination angle of the extraction side guiding portion 37, the terminal 2 must be squeezed when the extraction of the terminal 2 into the first electric wire insertion hole 34 is started. Even in this case, contact between the terminal protrusion 2a and the waterproof plug 30 can be suppressed, and damage to the waterproof plug 30 by the terminal protrusion 2a can be more reliably suppressed. The insulating housing 20 is provided with a housing-side convex portion 28 that protrudes rearward from the rear surface 26 a and is inserted into the extraction-side concave portion 38. Contact between the terminal projections 2a and the terminal projections 2a can be avoided more reliably.

また、前記のように、前記ハウジング側凸部２８を、その側面のうち前記端子突起部２ａに対向する面２８ａが、前記端子収容室２４の内側面のうち前記端子突起部２ａと対向する面と面一となるような形状とすれば、端子突起部２ａをこの端子収容室２４の内側面とハウジング側凸部２８の面２８ａに沿わせつつ端子２の挿入を行うことができる。従って、端子２の姿勢を安定させた状態でこの端子２の抜出作業を行うことができるので、端子２の抜出作業時に、この端子２をより容易に第一電線挿通孔３４に移動させることが可能になる。   Further, as described above, the surface 28a of the housing-side convex portion 28 that faces the terminal projection 2a on the side surface is the surface that faces the terminal projection 2a on the inner side surface of the terminal accommodating chamber 24. The terminal 2 can be inserted while the terminal protrusion 2 a is aligned with the inner surface of the terminal accommodating chamber 24 and the surface 28 a of the housing-side convex portion 28. Accordingly, the terminal 2 can be extracted while the terminal 2 is in a stable posture. Therefore, when the terminal 2 is extracted, the terminal 2 is more easily moved to the first electric wire insertion hole 34. It becomes possible.

ここで、前記実施形態では、前記防水栓３０の挿入側凹部３６を、テーパ部分３６ａとこのテーパ部分３６ａから電線１の挿入方向と垂直な方向に凹む段部３６ｂとで形成した場合について示したが、テーパ部分３６ａを設けず、段部３６ｂのみとしてもよい。また、この段部３６ｂの形状は前記に限らず、前記挿入側誘い込み部３５の傾斜角度よりも大きな角度で凹んでいればよい。   Here, in the said embodiment, it showed about the case where the insertion side recessed part 36 of the said waterproof plug 30 was formed with the taper part 36a and the step part 36b dented in the direction perpendicular | vertical to the insertion direction of the electric wire 1 from this taper part 36a. However, the tapered portion 36a may not be provided and only the stepped portion 36b may be provided. Moreover, the shape of this step part 36b is not restricted to the above, but should just be dented at an angle larger than the inclination angle of the said insertion side guiding part 35. FIG.

前記防水栓３０の抜出側凹部３８についても同様に、テーパ部分３８ａを設けず、段部３８ｂのみとしてもよい。また、この段部３８ｂの形状も前記に限らず、前記抜出側誘い込み部３７の傾斜角度よりも大きな角度で凹んでいればよい。   Similarly, the withdrawal side recess 38 of the waterproof plug 30 may be provided with only the stepped portion 38b without providing the tapered portion 38a. Further, the shape of the stepped portion 38b is not limited to the above, and it is sufficient that the stepped portion 38b is recessed at an angle larger than the inclination angle of the extraction side guiding portion 37.

また、端子突起部２ａは、前記のように前記電気接触部２ｄを形成する際に前記係止孔２ｂと係合する部分に限らず、端子２の外周面から突出しているものであればよい。   Further, the terminal protrusion 2a is not limited to a portion that engages with the locking hole 2b when the electric contact portion 2d is formed as described above, and may be anything that protrudes from the outer peripheral surface of the terminal 2. .

本発明に係る防水コネクタの分解断面図である。It is an exploded sectional view of the waterproof connector concerning the present invention. 図１に示す防水コネクタに設けられる端子の展開図である。It is an expanded view of the terminal provided in the waterproof connector shown in FIG. 図１に示す防水コネクタに設けられる絶縁ハウジングの断面図である。It is sectional drawing of the insulation housing provided in the waterproof connector shown in FIG. （ａ）図１に示す防水コネクタに設けられる防水栓の後方からの正面図である。（ｂ）（ａ）に示す防水栓の断面図である。(A) It is a front view from the back of the waterproof plug provided in the waterproof connector shown in FIG. (B) It is sectional drawing of the waterproof stopper shown to (a). （ａ）図１に示す防水コネクタに設けられるホルダーの前方からの正面図である。（ｂ）（ａ）に示すホルダーの断面図である。(A) It is a front view from the front of the holder provided in the waterproof connector shown in FIG. (B) It is sectional drawing of the holder shown to (a). 図１に示す絶縁ハウジングと防水栓とホルダーとを組み付けた状態で示す防水コネクタの分解断面図である。FIG. 2 is an exploded cross-sectional view of the waterproof connector shown in a state where the insulating housing, the waterproof plug, and the holder shown in FIG. 1 are assembled. （ａ）端子の挿入過程を示す断面図である。（ｂ）端子の挿入過程を示す断面図である。（ｃ）端子の挿入過程を示す断面図である。(A) It is sectional drawing which shows the insertion process of a terminal. (B) It is sectional drawing which shows the insertion process of a terminal. (C) It is sectional drawing which shows the insertion process of a terminal. 図１に示す防水コネクタを組み立てた状態で示す断面図である。It is sectional drawing shown in the state which assembled the waterproof connector shown in FIG. 従来の防水コネクタの分解断面図である。It is an exploded sectional view of the conventional waterproof connector.

符号の説明Explanation of symbols

１ 電線
２ 端子
２ａ 端子突起部
１０ 防水コネクタ
２０ 絶縁ハウジング
２２ 端子保持部
２４ 端子収容室
２４ａ 端子挿入口
２６ 収容壁
２６ａ 後面
２６ｃ ホルダー係止孔
２８ ハウジング側凸部
３０ 防水栓
３４ 第一電線挿通孔
３５ 挿入側誘い込み部
３６ 挿入側凹部
３６ａ テーパ部分
３６ｂ 段部
３７ 抜出側誘い込み部
３８ 抜出側凹部
３８ａ テーパ部分
３８ｂ 段部
４０ ホルダー
４２ｃ ホルダー被係止突起
４４ 第二電線挿通孔
４６ ホルダー側凸部 DESCRIPTION OF SYMBOLS 1 Electric wire 2 Terminal 2a Terminal protrusion part 10 Waterproof connector 20 Insulating housing 22 Terminal holding part 24 Terminal accommodating chamber 24a Terminal insertion slot 26 Accommodating wall 26a Rear surface 26c Holder latching hole 28 Housing side convex part 30 Waterproof plug 34 First electric wire insertion hole 35 Insertion side guide part 36 Insertion side recess part 36a Tapered part 36b Step part 37 Extraction side guide part 38 Extraction side recess part 38a Taper part 38b Step part 40 Holder 42c Holder locked protrusion 44 Second electric wire insertion hole 46 Holder side convex part Part

Claims (4)

電線が接続される端子と、
当該端子を保持する絶縁ハウジングと、
当該絶縁ハウジングの後方の位置でこの絶縁ハウジングに固定されるホルダーと、
弾性部材からなり、前記ホルダーと前記絶縁ハウジングとの間に弾性変形した状態で介在する防水栓とを備え、
前記端子は、その外周面の一部から所定の方向に突出する端子突起部を有し、
前記絶縁ハウジングは、前記端子が後方から挿入可能な端子収容室を有し、
前記防水栓は、前記端子収容室と対応する位置に設けられて、前記端子が後方から挿通される第一電線挿通孔と、この防水栓の後端部分のうち前記端子突起部と対向する部分以外の部分に設けられて、前記第一電線挿通孔の内周面から後方に向かうに従ってこの第一電線挿通孔に挿入された端子から離間する方向に傾斜し、前記端子の挿通時に当該端子を前記第一電線挿通孔に案内するテーパ状の挿入側誘い込み部と、この防水栓の後端部分のうち前記端子突起部と対向する部分に設けられて、前記挿入側誘い込み部の傾斜角度よりも大きな角度で前記第一電線挿通孔の内周面から前記端子突起部の突出方向に凹む挿入側凹部とを有し、
前記ホルダーは、前記第一電線挿通孔と対応する位置に設けられて、前記端子を挿通可能な第二電線挿通孔と、当該第二電線挿通孔が開口する前面から前方に向けて突出するとともに前記挿入側凹部に挿入されるホルダー側凸部とを有することを特徴とする防水コネクタ。 A terminal to which the wire is connected;
An insulating housing for holding the terminal;
A holder fixed to the insulating housing at a position behind the insulating housing;
A waterproof plug made of an elastic member and interposed in an elastically deformed state between the holder and the insulating housing,
The terminal has a terminal protrusion protruding in a predetermined direction from a part of the outer peripheral surface thereof,
The insulating housing has a terminal accommodating chamber into which the terminal can be inserted from behind,
The waterproof plug is provided at a position corresponding to the terminal accommodating chamber, a first wire insertion hole through which the terminal is inserted from the rear, and a portion of the rear end portion of the waterproof plug that faces the terminal protrusion. Is provided in a portion other than the first wire insertion hole, and is inclined in a direction away from the terminal inserted into the first electric wire insertion hole as it goes rearward from the inner peripheral surface of the first electric wire insertion hole, and the terminal is inserted when the terminal is inserted. A taper-shaped insertion-side lead-in portion that guides to the first electric wire insertion hole and a portion of the rear end portion of the waterproof plug that is opposed to the terminal protruding portion, and more than an inclination angle of the insertion-side lead-in portion An insertion side recess recessed in the protruding direction of the terminal protrusion from the inner peripheral surface of the first electric wire insertion hole at a large angle;
The holder is provided at a position corresponding to the first electric wire insertion hole, and protrudes forward from a second electric wire insertion hole into which the terminal can be inserted, and a front surface where the second electric wire insertion hole opens. A waterproof connector having a holder-side convex portion to be inserted into the insertion-side concave portion. 請求項１に記載の防水コネクタであって、
前記ホルダー側凸部の側面のうち前記端子突起部に対向する面が、前記ホルダーの前記第二電線挿通孔の内側面のうち前記端子突起部と対向する面と面一であることを特徴とする防水コネクタ。 The waterproof connector according to claim 1,
Of the side surface of the holder-side convex portion, the surface facing the terminal projection portion is flush with the surface of the inner surface of the second wire insertion hole facing the terminal projection portion. Waterproof connector. 電線が接続される端子と、
当該端子を保持する絶縁ハウジングと、
当該絶縁ハウジングの後方の位置でこの絶縁ハウジングに固定されるホルダーと、
弾性部材からなり、前記ホルダーと前記絶縁ハウジングとの間に弾性変形した状態で介在する防水栓とを備え、
前記端子は、その外周面の一部から所定の方向に突出する端子突起部を有し、
前記絶縁ハウジングは、前記端子が後方から挿入可能な端子収容室を有し、
前記防水栓は、前記端子収容室と対応する位置に設けられて、前記端子が後方から挿通される第一電線挿通孔と、この防水栓の前端部分のうち前記端子突起部と対向する部分以外の部分に設けられて、前記第一電線挿通孔の内周面から前方に向かうに従ってこの第一電線挿通孔に挿入された端子から離間する方向に傾斜し、前記端子の抜出時に当該端子を前記第一電線挿通孔に案内するテーパ状の抜出側誘い込み部と、この防水栓の前端部分のうち前記端子突起部と対向する部分に設けられて、前記抜出側誘い込み部の傾斜角度よりも大きな角度で前記第一電線挿通孔の内周面から前記端子突起部の突出方向に凹む抜出側凹部とを有し、
前記絶縁ハウジングは、前記端子収容室が開口する後面から後方に向けて突出するとともに前記抜出側凹部に挿入されるハウジング側凸部を有することを特徴とする防水コネクタ。 A terminal to which the wire is connected;
An insulating housing for holding the terminal;
A holder fixed to the insulating housing at a position behind the insulating housing;
A waterproof plug made of an elastic member and interposed in an elastically deformed state between the holder and the insulating housing,
The terminal has a terminal protrusion protruding in a predetermined direction from a part of the outer peripheral surface thereof,
The insulating housing has a terminal accommodating chamber into which the terminal can be inserted from behind,
The waterproof plug is provided at a position corresponding to the terminal accommodating chamber, and the first electric wire insertion hole through which the terminal is inserted from the rear, and a portion of the front end portion of the waterproof plug other than the portion facing the terminal protrusion. Is inclined in a direction away from the terminal inserted into the first electric wire insertion hole as it goes forward from the inner peripheral surface of the first electric wire insertion hole, and the terminal is removed when the terminal is pulled out. From the inclination angle of the extraction side lead-in part provided in the taper-shaped extraction side guide part guided to the first electric wire insertion hole and the terminal projection part of the front end part of the waterproof plug An extraction side recess that is recessed in the protruding direction of the terminal protrusion from the inner peripheral surface of the first wire insertion hole at a large angle,
The waterproof connector according to claim 1, wherein the insulating housing has a housing-side convex portion that protrudes rearward from a rear surface that opens the terminal accommodating chamber and is inserted into the extraction-side concave portion. 請求項３に記載の防水コネクタであって、
前記ハウジング側凸部の側面のうち前記端子突起部に対向する面が、前記絶縁ハウジングの前記端子収容室の内側面のうち前記端子突起部と対向する面と面一であることを特徴とする防水コネクタ。 The waterproof connector according to claim 3,
A surface of the side surface of the housing-side convex portion that faces the terminal protrusion is flush with a surface of the inner surface of the terminal housing chamber that faces the terminal protrusion. Waterproof connector.
JP2007002582A 2007-01-10 2007-01-10 Waterproof connector Expired - Fee Related JP4768641B2 (en)

Priority Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8231408B2 (en) 2009-11-30 2012-07-31 Japan Aviation Electronics Industry, Limited Connector
JP2013012352A (en) * 2011-06-28 2013-01-17 Sumitomo Wiring Syst Ltd Waterproof connector
JP2021096892A (en) * 2019-12-13 2021-06-24 矢崎総業株式会社 Terminal fitting and connector

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8231408B2 (en) 2009-11-30 2012-07-31 Japan Aviation Electronics Industry, Limited Connector
JP2013012352A (en) * 2011-06-28 2013-01-17 Sumitomo Wiring Syst Ltd Waterproof connector
CN103229365A (en) * 2011-06-28 2013-07-31 住友电装株式会社 Waterproof connector
CN103229365B (en) * 2011-06-28 2015-11-25 住友电装株式会社 Water-proof connector
JP2021096892A (en) * 2019-12-13 2021-06-24 矢崎総業株式会社 Terminal fitting and connector
JP7381320B2 (en) 2019-12-13 2023-11-15 矢崎総業株式会社 connector

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