JP5999440B2

JP5999440B2 - connector

Info

Publication number: JP5999440B2
Application number: JP2013078542A
Authority: JP
Inventors: 寛二堀内; 芳朋辻井; 紀行植松
Original assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Current assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Priority date: 2013-04-04
Filing date: 2013-04-04
Publication date: 2016-09-28
Anticipated expiration: 2033-04-04
Also published as: JP2014203647A

Description

本発明は、電線の接続等に使用されるコネクタに関し、一方の接続端子を収容するハウジングと他方の接続端子を収容するハウジングがロック機構を介して着脱可能に嵌合されるコネクタに関するものである。 The present invention relates to a connector used for connecting electric wires and the like, and more particularly, to a connector in which a housing that houses one connection terminal and a housing that houses the other connection terminal are detachably fitted via a lock mechanism. .

従来から、自動車には、多種多様な電子機器が搭載されており、電子機器に電力や制御信号等を送るために、ワイヤハーネスが配索されている。そして、これらの電子機器とワイヤハーネスや、ワイヤハーネス間の接続は、それぞれの端末に設けられたコネクタ同士を嵌合させることで、実現されるようになっている。 Conventionally, a wide variety of electronic devices are mounted on automobiles, and wire harnesses are routed to send electric power, control signals, and the like to the electronic devices. And the connection between these electronic devices, a wire harness, and a wire harness is implement | achieved by making the connectors provided in each terminal fit.

ところで、このようなコネクタは、特開平８−２８８０１４号公報（特許文献１）の図６等に記載のように、接続される一方の部材端末に設けられた第１ハウジング内に収容された第１接続端子と、接続される他方の部材端末に設けられた第２ハウジング内に収容された第２接続端子とが、所定の接触圧で圧接させることで、端子同士が接続されるようになっている。そして、第１接続端子と第２接続端子を接続状態に保持するために、第１ハウジングと第２ハウジングが、ロック突起とロック穴等によるロック機構を介して離脱可能に嵌合保持されるようになっている。 By the way, such a connector is accommodated in a first housing provided in one member terminal to be connected as described in FIG. 6 of Japanese Patent Laid-Open No. 8-288014 (Patent Document 1). One connection terminal and the second connection terminal accommodated in the second housing provided in the other member terminal to be connected are brought into contact with each other at a predetermined contact pressure, so that the terminals are connected to each other. ing. And in order to hold | maintain a 1st connection terminal and a 2nd connection terminal in a connection state, the 1st housing and a 2nd housing are detachably fitted and hold | maintained via the lock mechanism by a lock protrusion, a lock hole, etc. It has become.

ところが、従来構造のコネクタでは、第１ハウジングと第２ハウジングがロック機構を介して固定されていることから、車両走行時の振動等により、ロック機構の隙間寸法分だけ、第１ハウジングと第２ハウジング間がガタつくことが避けられなかった。それ故、第１ハウジングに収容保持された第１接続端子と第２ハウジングに収容保持された第２接続端子の接続部分が、振動等により摺動することにより、両端子の接続部分が摩耗して接触不良を発生するおそれがあった。 However, in the connector having the conventional structure, since the first housing and the second housing are fixed via the lock mechanism, the first housing and the second housing are caused by vibrations during traveling of the vehicle by the gap dimension of the lock mechanism. It was inevitable that the housing was loose. Therefore, the connecting portion of the first connecting terminal accommodated and held in the first housing and the connecting portion of the second connecting terminal accommodated and held in the second housing slides due to vibration or the like, so that the connecting portion of both terminals wears. There was a risk of poor contact.

このような問題に対して、特許文献１では、ロック突起とロック穴の間に板バネ部材を配設し、板バネ部材の付勢力によりロック突起とロック穴の隙間を詰めてハウジング間のガタツキを防止する構造が提案されている。また、特開２００６−２０２５５７号公報（特許文献２）では、ハウジング内に収容したばね部材の付勢力を、各接続端子の接続部分に直接及ぼすことにより各接続端子間の圧接力を高めて接続端子間の摺動を抑制することが提案されている。 With respect to such a problem, in Patent Document 1, a leaf spring member is disposed between the lock protrusion and the lock hole, and the gap between the lock protrusion and the lock hole is reduced by the urging force of the leaf spring member, thereby causing a backlash between the housings. A structure for preventing this has been proposed. Further, in Japanese Patent Application Laid-Open No. 2006-202557 (Patent Document 2), the biasing force of the spring member accommodated in the housing is directly exerted on the connection portion of each connection terminal to increase the pressure contact force between the connection terminals. It has been proposed to suppress sliding between terminals.

しかしながら、これら特許文献１、２の構造では、ばねの付勢力を利用して、摺動は抑えられているものの、第１接続端子と第２接続端子の接続部分に車両からの振動が伝達されることに代わりはなかった。従って、比較的大きな振動が及ぼされた際には、各端子の接続部分が強く圧接された状態で摺動されることになり、かえって端子の摩耗や破損が生じるおそれもあり、各端子の接続部分の摺動防止について、根本的な解決を図り得るものではなかった。 However, in the structures of Patent Documents 1 and 2, although the sliding is suppressed by using the biasing force of the spring, the vibration from the vehicle is transmitted to the connection portion between the first connection terminal and the second connection terminal. There was no substitute for it. Therefore, when a relatively large vibration is applied, the connecting portion of each terminal is slid in a state where it is strongly pressed, which may cause the terminal to be worn or damaged. It was not possible to achieve a fundamental solution for preventing sliding of the part.

なお、各接続端子の表面に施されるめっきを厚くすることで、摺動してもめっきの残存を確実にして接触不良の防止を図ることも考えられるが、コストが嵩み現実的ではなかった。 In addition, by increasing the plating applied to the surface of each connection terminal, it may be possible to ensure that the plating remains even if it slides to prevent poor contact, but this is expensive and impractical. It was.

特開平８−２８８０１４号公報JP-A-8-288014 特開２００６−２０２５５７号公報JP 2006-202557 A

本発明は、上述の事情を背景に為されたものであって、その解決課題は、第１接続端子と第２接続端子の接触部分への振動伝達を吸収して防止することができる、新規な構造のコネクタを提供することにある。 The present invention has been made in the background of the above-described circumstances, and the problem to be solved is to absorb and prevent vibration transmission to the contact portion between the first connection terminal and the second connection terminal. It is to provide a connector having a simple structure.

以下、前述の如き課題を解決するために為された本発明の態様を記載する。なお、以下に記載の各態様において採用される構成要素は、可能な限り任意の組み合わせで採用可能である。 Hereinafter, embodiments of the present invention made to solve the above-described problems will be described. In addition, the component employ | adopted in each aspect as described below is employable by arbitrary combinations as much as possible.

本発明の第一の態様は、第１接続端子を収容保持する第１ハウジングと、前記第１接続端子と電気的に接続される第２接続端子を収容保持すると共に、前記第１ハウジングにロック機構を介して離脱可能に嵌合される第２ハウジングと、を備えたコネクタであって、前記第１ハウジングには、前記第１ハウジングと前記第２ハウジングの嵌合方向において、前記第１接続端子を前記第２ハウジング側に付勢する付勢手段が配設されており、前記第１ハウジングと前記第２ハウジングの嵌合状態において、前記第２接続端子に接続された前記第１接続端子が、前記付勢手段の付勢力に抗して、前記ロック機構の隙間寸法よりも大きな押込寸法で、前記第１ハウジング側に押し込まれるようになっており、前記第１ハウジングには、前記第１接続端子が前記嵌合方向に移動可能に収容される収容筒部が設けられており、該収容筒部の先端側には、前記第２接続端子に向かって開口する開口部が設けられている一方、前記収容筒部の基端側には、前記第１接続端子の基端部が前記付勢手段の付勢力により当接保持される当接部が設けられている一方、前記嵌合方向において、前記第１接続端子の前記基端部を間に挟んで前記当接部と反対側には、前記第１接続端子の前記基端部を前記当接部に付勢する前記付勢手段としてのコイルばねが、前記収容筒部と同軸状に配設されており、前記第１接続端子の前記基端部の端面には、被覆電線端末に圧着された圧着端子の接続部が重ね合されて、前記圧着端子の前記接続部に設けられた貫通孔を挿通して前記第１接続端子の前記基端部に開口するねじ孔に螺合されるボルトにより、前記第１接続端子の前記基端部の前記端面に前記被覆電線端末の前記圧着端子が固定されている一方、前記第１ハウジングの前記嵌合方向の一端側に前記第２ハウジングが嵌合されるようになっている一方、前記嵌合方向の他端側には蓋体によって蓋覆される開口部が設けられており、前記コイルばねが、前記ボルトの周囲に配設されると共に、前記第１接続端子の前記基端部の前記端面に固定された前記圧着端子と前記蓋体の間で、前記コイルばねが圧縮されて配置されていることを特徴とする。 According to a first aspect of the present invention, a first housing that accommodates and holds a first connection terminal and a second connection terminal that is electrically connected to the first connection terminal are accommodated and locked to the first housing. A second housing detachably fitted via a mechanism, wherein the first connection is connected to the first housing in a fitting direction of the first housing and the second housing. A biasing means for biasing the terminal toward the second housing is disposed, and the first connection terminal connected to the second connection terminal in a fitted state of the first housing and the second housing However, against the urging force of the urging means, it is pushed into the first housing side with a pushing dimension larger than the gap dimension of the lock mechanism . 1 connection An accommodation cylinder portion is provided in which the child is accommodated so as to be movable in the fitting direction, and an opening portion that opens toward the second connection terminal is provided on the distal end side of the accommodation cylinder portion. On the proximal end side of the housing cylinder portion, a contact portion is provided in which the proximal end portion of the first connection terminal is contacted and held by the biasing force of the biasing means. The biasing means for biasing the base end portion of the first connection terminal to the contact portion on the opposite side of the contact portion with the base end portion of the first connection terminal interposed therebetween. The coil spring is disposed coaxially with the accommodating cylinder, and the end face of the base end of the first connection terminal is overlaid with the connection portion of the crimp terminal crimped to the coated wire terminal. And through the through hole provided in the connection portion of the crimp terminal to open the base end portion of the first connection terminal. The crimp terminal of the covered electric wire terminal is fixed to the end surface of the base end portion of the first connection terminal by a bolt screwed into the screw hole, while one end of the first housing in the fitting direction. The second housing is adapted to be fitted to the side, while the other end side in the fitting direction is provided with an opening that is covered with a lid, and the coil spring comprises the bolt The coil spring is disposed between the crimping terminal fixed to the end surface of the base end portion of the first connection terminal and the lid body in a compressed manner. Features.

本態様によれば、第１ハウジングと前記第２ハウジングの嵌合状態において、第２接続端子に接続された前記第１接続端子が、前記付勢手段の付勢力に抗して、第１ハウジング側に押し込まれるようになっている。しかも、第２接続端子に接続された第１接続端子の第１ハウジング側への押込寸法が、第１ハウジングと前記第２ハウジングを嵌合状態に保持するロック機構に設けられる隙間寸法よりも大きくされている。これにより、第２接続端子に接続された第１接続端子を、第１ハウジングや第２ハウジングに対して、付勢手段を介して弾性支持された状態に保持することができる。従って、自動車の走行時等の振動により第１ハウジングと前記第２ハウジングが嵌合方向に相対変位した場合でも、その振動は付勢手段によって吸収又は絶縁することができる。それ故、第１接続端子と第２接続端子の接続部分に振動等が各ハウジングを介して伝達されることが回避され、第１接続端子と第２接続端子の接続部分の摺動の発生防止について根本的な解決を図ることができたのである。 According to this aspect, in the fitted state of the first housing and the second housing, the first connection terminal connected to the second connection terminal resists the biasing force of the biasing means, and the first housing It is designed to be pushed to the side. Moreover, the pushing dimension of the first connecting terminal connected to the second connecting terminal toward the first housing is larger than the gap dimension provided in the lock mechanism that holds the first housing and the second housing in the fitted state. Has been. Thereby, the 1st connection terminal connected to the 2nd connection terminal can be hold | maintained in the state elastically supported via the biasing means with respect to the 1st housing or the 2nd housing. Therefore, even when the first housing and the second housing are relatively displaced in the fitting direction due to vibrations during traveling of the automobile, the vibrations can be absorbed or insulated by the biasing means. Therefore, vibrations and the like are prevented from being transmitted to the connection portion between the first connection terminal and the second connection terminal via each housing, and the occurrence of sliding of the connection portion between the first connection terminal and the second connection terminal is prevented. It was possible to achieve a fundamental solution.

要するに、本発明は、第２接続端子に接続された第１接続端子の第１ハウジング側への押込寸法が、ロック機構に設けられる隙間寸法よりも大きく形成することにより、各ハウジング間のガタツキを全て付勢手段の弾性変形により吸収するという、従来にない全く新しい構成により、第１接続端子と第２接続端子の接続部分への振動の伝達を有利に防止することが可能になったものである。従って、第１接続端子と第２接続端子の接続部分に直接ばねの付勢力を及ぼして圧接力を高める場合に比して、第１接続端子および第２接続端子の挿入力を向上させることなく、それらの接続安定性や耐久性を確保することができるのである。 In short, according to the present invention, the first connecting terminal connected to the second connecting terminal has a pushing dimension to the first housing side larger than a gap dimension provided in the lock mechanism, so that the backlash between the housings can be reduced. It is possible to advantageously prevent the transmission of vibration to the connection portion of the first connection terminal and the second connection terminal by a completely new configuration that is not absorbed by elastic deformation of the biasing means. is there. Therefore, the insertion force of the first connection terminal and the second connection terminal is not improved compared to the case where the biasing force of the spring is directly applied to the connection portion of the first connection terminal and the second connection terminal to increase the pressure contact force. The connection stability and durability can be ensured.

また、そもそも、第１接続端子と第２接続端子の接続部分をハウジングから伝達される振動に対して絶縁状態に保持できることから、両端子の接続部分への振動伝達が避けられない従来構造に比して、自動車の走行時等の振動による接続部分の摩耗や位置ずれ等の問題発生を確実に防止することができる。 In the first place, since the connection portion of the first connection terminal and the second connection terminal can be kept insulative with respect to vibration transmitted from the housing, vibration transmission to the connection portion of both terminals cannot be avoided. Thus, it is possible to reliably prevent the occurrence of problems such as wear and misalignment of the connecting portion due to vibrations during driving of the automobile.

なお、第１接続端子が第２接続端子に接続された状態で、付勢手段の付勢力に抗して第１ハウジング側に押し込まれるためには、付勢手段の付勢力が第１接続端子と第２接続端子間の挿入力よりも大きいことが必要となることは、言うまでもない。 In order to be pushed into the first housing against the biasing force of the biasing means in a state where the first connection terminal is connected to the second connection terminal, the biasing force of the biasing means is the first connection terminal. Needless to say, it is necessary to be larger than the insertion force between the second connection terminal and the second connection terminal.

さらに、本態様では、第１ハウジングにおいて、第１接続端子を嵌合方向で移動可能に収容する収容筒部が設けられていることから、付勢手段により移動可能とされる第１接続端子の嵌合方向における位置決め安定性を有利に確保することができ、第２接続端子に接続状態とされた第１接続端子をハウジング内の所定位置で安定して弾性保持することができる。それ故、第１接続端子と第２接続端子の接続安定性を有利に確保できるのである。 Furthermore, in this aspect, since the housing cylinder part which accommodates the 1st connection terminal so that a movement is possible in a fitting direction is provided in the 1st housing, the 1st connection terminal made movable by an urging means is provided. Positioning stability in the fitting direction can be advantageously ensured, and the first connection terminal connected to the second connection terminal can be stably elastically held at a predetermined position in the housing. Therefore, the connection stability between the first connection terminal and the second connection terminal can be advantageously ensured.

さらに、本態様では、第１ハウジングと第１接続端子の基端側との隙間スペースを有効利用してコイルばねを収容筒部と同軸状に配設することにより、第１接続端子の第１ハウジング内での位置決め安定性を確保しつつ、第１接続端子を第２ハウジング側に付勢させることができる。これにより、コネクタの省スペース化を図りつつ、第２接続端子に接続された第１接続端子を、第１ハウジングや第２ハウジングに対して、付勢手段を介して弾性支持させる構造を安定して実現することができるのである。 Furthermore, in this aspect, the coil spring is disposed coaxially with the housing cylinder portion by effectively utilizing the gap space between the first housing and the base end side of the first connection terminal, whereby the first connection terminal first is provided. The first connection terminal can be biased toward the second housing while ensuring positioning stability in the housing. This stabilizes the structure in which the first connection terminal connected to the second connection terminal is elastically supported to the first housing and the second housing via the biasing means while saving the space of the connector. Can be realized.

本発明の第二の態様は、前記第一の態様に記載のものにおいて、前記第１ハウジングと前記第２ハウジングの嵌合対向面間には、前記嵌合方向に直交する方向で圧接される弾性部材が収容配置されているものである。 According to a second aspect of the present invention, in the one described in the first aspect, the fitting facing surfaces of the first housing and the second housing are pressed in a direction perpendicular to the fitting direction. An elastic member is accommodated.

本態様によれば、第１ハウジングと第２ハウジングの嵌合対向面間に収容された弾性部材が嵌合方向に直交する方向で圧接されていることから、嵌合方向に直交する方向に伝達される微振動等を弾性部材で吸収することができ、第１接続端子と第２接続端子の接続部への振動伝達を一層有利に防止して、コネクタの耐久性や接続安定性の更なる向上を図ることができる。 According to essential like, transmitted from the elastic member housed between the mating opposing surfaces of the first housing and the second housing is pressed against in a direction orthogonal to the fitting direction, in a direction perpendicular to the mating direction Can be absorbed by the elastic member, more advantageously prevent vibration transmission to the connection portion of the first connection terminal and the second connection terminal, and further improve the durability and connection stability of the connector Improvements can be made.

本発明のコネクタによれば、第２接続端子に接続された第１接続端子の第１ハウジング側への押込寸法が、ロック機構に設けられる隙間寸法よりも大きく形成されている。これにより、各ハウジング間のガタツキを全て付勢手段の弾性変形により吸収でき、第１接続端子と第２接続端子の接続部分への振動の伝達を有利に防止できる。従って、従来の如き第１接続端子および第２接続端子の挿入力を向上させることなく、それらの接続安定性や耐久性を確保することができる。また、第１接続端子と第２接続端子の接続部分をハウジングから伝達される振動に対して絶縁状態に保持できることから、従来の如き自動車の走行時等の振動による接続部分の摩耗や位置ずれ等の問題発生を確実に防止できる。 According to the connector of the present invention, the push-in dimension of the first connection terminal connected to the second connection terminal toward the first housing is formed larger than the gap dimension provided in the lock mechanism. Thereby, all the backlashes between the housings can be absorbed by the elastic deformation of the urging means, and transmission of vibrations to the connection portions of the first connection terminal and the second connection terminal can be advantageously prevented. Therefore, it is possible to ensure the connection stability and durability without improving the insertion force of the first connection terminal and the second connection terminal as in the prior art. In addition, since the connection portion between the first connection terminal and the second connection terminal can be kept insulative with respect to vibration transmitted from the housing, the wear or displacement of the connection portion due to vibration during driving of the automobile as in the prior art, etc. It is possible to reliably prevent the occurrence of problems.

本発明の一実施形態としてのコネクタを示す分解斜視図。The disassembled perspective view which shows the connector as one Embodiment of this invention. 本発明の一実施形態としてのコネクタを示す斜視図。The perspective view which shows the connector as one Embodiment of this invention. 図１に示すオス端子の正面図。The front view of the male terminal shown in FIG. 図１に示すメス端子の背面図。The rear view of the female terminal shown in FIG. 図１のＶ−Ｖ断面拡大図。The VV cross-sectional enlarged view of FIG. 図２のＶＩ−ＶＩ断面拡大図。The VI-VI cross-sectional enlarged view of FIG.

以下、本発明の実施形態について、図面を参照しつつ説明する。 Embodiments of the present invention will be described below with reference to the drawings.

先ず、図１〜６に、本発明の一実施形態としてのコネクタ１０を示す。図１に示されているように、コネクタ１０は、第１接続端子たるオス端子１２を収容保持する第１ハウジングたるオスハウジング１４と、オス端子１２と電気的に接続される第２接続端子たるメス端子１６を収容保持すると共に、オスハウジング１４にロック機構を介して離脱可能に嵌合される第２ハウジングたるメスハウジング１８と、を備えて構成されている。以下の説明において、前方とは、図１中の左方、後方とは、図１中の右方、また上方とは、図１中の上方、下方とは、図１中の下方を言うものとする。 First, the connector 10 as one Embodiment of this invention is shown in FIGS. As shown in FIG. 1, the connector 10 is a male housing 14 that is a first housing that houses and holds a male terminal 12 that is a first connection terminal, and a second connection terminal that is electrically connected to the male terminal 12. The female terminal 16 is accommodated and held, and the female housing 18 is a second housing that is detachably fitted to the male housing 14 via a lock mechanism. In the following description, the front means the left in FIG. 1, the rear means the right in FIG. 1, and the upper means the upper in FIG. 1, and the lower means the lower in FIG. And

図１〜６に示されているように、メスハウジング１８は、略長円断面形状の筒体部２０を有しており、例えばポリプロピレン（ＰＰ）、ポリアミド（ＰＡ）等の合成樹脂により射出成形等によって一体形成されている。筒体部２０は、一方の端部（図１中、右側）が開口されていると共に、他方の端部（図１中、左側）が軸直角方向に広がる壁部２２で塞がれた略有底筒体形状を有している。壁部２２は、筒体部２０の外周縁部よりさらに外方に広がって形成されており、全体として略矩形の平板形状とされている。壁部２２の四隅には取付孔２４が貫設されており、図示しないボルトにより電気接続箱の筐体やワイヤハーネスのプロテクタ等に固定されるようになっている。壁部２２のオスハウジング１４に嵌合される側（図５中、右側）の中央部分には、メス端子１６を収容保持するメス端子収容部２６が突設されており、壁部２２のもう一方の側（図５中、左側）に開口する略有底筒体形状を有している。そして、この開口部の外周縁部には、略円環形状のフランジ部２７が突設されており、図示しない電線等が挿通されるようになっている。また、メス端子収容部２６を構成する筒体２８の底部３０には、オス端子１２を挿通するための貫通孔３２が貫設されている。なお、図１に示されているように、フランジ部２７は、壁部２２の中心部において、筒体部２０の長手方向に離隔して一対設けられており、同様に、フランジ部２７の内面３６と連通するメス端子収容部２６も一対設けられている。 As shown in FIGS. 1 to 6, the female housing 18 has a cylindrical body portion 20 having a substantially oval cross-sectional shape. For example, the female housing 18 is injection-molded with a synthetic resin such as polypropylene (PP) or polyamide (PA). Etc. are integrally formed. The cylindrical body portion 20 has one end portion (right side in FIG. 1) opened, and the other end portion (left side in FIG. 1) is closed by a wall portion 22 that extends in the direction perpendicular to the axis. It has a bottomed cylindrical shape. The wall portion 22 is formed to extend further outward than the outer peripheral edge portion of the cylindrical body portion 20, and has a substantially rectangular flat plate shape as a whole. Mounting holes 24 are provided in the four corners of the wall portion 22 and are fixed to the casing of the electrical connection box, the protector of the wire harness, and the like by bolts (not shown). A female terminal accommodating portion 26 that accommodates and holds the female terminal 16 protrudes from a central portion of the wall portion 22 on the side (right side in FIG. 5) fitted to the male housing 14. It has a substantially bottomed cylindrical shape that opens to one side (left side in FIG. 5). A substantially annular flange portion 27 protrudes from the outer peripheral edge portion of the opening, and an electric wire (not shown) is inserted therethrough. Further, a through hole 32 for inserting the male terminal 12 is provided through the bottom 30 of the cylindrical body 28 constituting the female terminal accommodating portion 26. As shown in FIG. 1, a pair of flange portions 27 are provided in the center portion of the wall portion 22 so as to be spaced apart in the longitudinal direction of the cylindrical body portion 20. A pair of female terminal accommodating portions 26 communicating with 36 are also provided.

また、図１及び図５に示されているように、壁部２２のオスハウジング１４に嵌合される側（図１及び図５中、右側）の上方には、嵌合方向に突出する矩形平板形状の係合突部３８が設けられている一方、係合突部３８の突出端部の中央部分から筒体部２０に向って係合突起４０が突設されている。さらに、係合突部３８の突出方向両側面から筒体部２０に向って、一対の延出部４２，４２が、係合突起４０の突出寸法よりも大きな寸法で延出されている。そして、壁部２２の上方に貫設された貫通孔４４により、係合突部３８と一対の延出部４２，４２により構成された逆樋状の枠体が、壁部２２の他方の側（図５中、左側）に向かって開口されるようになっている。 Further, as shown in FIGS. 1 and 5, a rectangular shape protruding in the fitting direction is located above the side (right side in FIGS. 1 and 5) of the wall portion 22 fitted to the male housing 14. A flat plate-shaped engaging protrusion 38 is provided, and an engaging protrusion 40 protrudes from the central portion of the protruding end of the engaging protrusion 38 toward the cylindrical body 20. Further, the pair of extending portions 42, 42 are extended from the both side surfaces in the protruding direction of the engaging protrusion 38 toward the cylindrical body portion 20 with a size larger than the protruding size of the engaging protrusion 40. And, by the through hole 44 penetrating above the wall portion 22, the reverse saddle-shaped frame body constituted by the engaging protrusion 38 and the pair of extending portions 42, 42 is connected to the other side of the wall portion 22. It opens toward (left side in FIG. 5).

そして、このような構造とされたメスハウジング１８に、メス端子１６を組み込む。より詳細には、図５に示されているように、メス端子１６は、略円筒形状の筒状部４６を有しており、銅や銅合金等の金属材料により形成されている。筒状部４６の一方の端部（図５中、右側）の外周縁部から軸方向内方に向かって、略円弧断面形状の複数の弾性接触片４８が突設されている。また、弾性接触片４８の延出方向先端部分を軸方向外方に屈曲することにより、適切な弾性力が付与された接続部５０が形成されている。加えて、図５に示されているように、筒状部４６の内面には、軸方向に延出すると共に中心軸方向に向かって略矩形形状で突出する複数のストッパ５４が設けられている。そして、メス端子１６は、図１及び図５に示されているように、壁部２２の他方の側（図１，５中、左側）から挿入され、フランジ部２７を挿通して、メスハウジング１８のメス端子収容部２６に収容保持されるようになっている。 Then, the female terminal 16 is incorporated into the female housing 18 having such a structure. More specifically, as shown in FIG. 5, the female terminal 16 has a substantially cylindrical tubular portion 46, and is formed of a metal material such as copper or copper alloy. A plurality of elastic contact pieces 48 having a substantially arc cross-sectional shape project from the outer peripheral edge of one end portion (right side in FIG. 5) of the cylindrical portion 46 inward in the axial direction. Further, the connecting portion 50 to which an appropriate elastic force is applied is formed by bending the distal end portion in the extending direction of the elastic contact piece 48 in the axially outward direction. In addition, as shown in FIG. 5, a plurality of stoppers 54 that extend in the axial direction and project in a substantially rectangular shape toward the central axis direction are provided on the inner surface of the cylindrical portion 46. . 1 and 5, the female terminal 16 is inserted from the other side (the left side in FIGS. 1 and 5) of the wall portion 22 and is inserted through the flange portion 27 so as to be inserted into the female housing. It is accommodated and held in 18 female terminal accommodating portions 26.

一方、図１〜２に示されているように、オスハウジング１４は、略長円断面形状の筒部５６を有しており、例えばポリプロピレン（ＰＰ）、ポリアミド（ＰＡ）等の合成樹脂により射出成形等によって一体形成されている。図１及び図５に示されているように、筒部５６は、前後両方向に開口されている略筒体形状を有している一方、筒部５６の基端側（図１及び図５中、右側）には、軸直方向外方（図１及び図５中、下方）に向って突出する電線収容筒体５８が設けられている。電線収容筒体５８は、一方の端部である突出端部が外方（図１及び図５中、下方）に向って開口されている一方、もう一方の端部である基端部が筒部５６の内面６０に向って開口されている。 On the other hand, as shown in FIGS. 1 and 2, the male housing 14 has a cylindrical portion 56 having a substantially oval cross-sectional shape, and is injected by a synthetic resin such as polypropylene (PP) or polyamide (PA). It is integrally formed by molding or the like. As shown in FIGS. 1 and 5, the cylindrical portion 56 has a substantially cylindrical shape opened in both the front and rear directions, while the proximal end side of the cylindrical portion 56 (in FIGS. 1 and 5). The right side) is provided with a wire housing cylinder 58 that protrudes outward in the axial direction (downward in FIGS. 1 and 5). The electric wire housing cylinder 58 has a projecting end portion that is one end portion opened outward (downward in FIGS. 1 and 5), while a base end portion that is the other end portion is a cylinder. It opens toward the inner surface 60 of the part 56.

筒部５６の先端側（図５中、左側）の中央部分には、オス端子１２が嵌合方向に移動可能に収容される収容筒部６２が設けられている。収容筒部６２の先端側（図５中、左側）には、メス端子１６に向かって開口する開口部６４が設けられている一方、収容筒部６２の基端側の底部６６には、オス端子１２を挿通するための貫通孔６８が貫設されていると共に、貫通孔６８の外周縁部には軸方向右方に向かって突出する円環状の当接部７０が形成されている。また、筒部５６と収容筒部６２に囲まれた略長円環状のメスハウジング収容溝７２は、筒部５６に隣接する深底の筒体収容部７４と、収容筒部６２に隣接する浅底のパッキン収容部７６と、を含んで構成されている。なお、図１に示されているように、収容筒部６２は、略長円断面形状とされる筒部５６の中心部の長手方向に対して一対設けられている。 An accommodation cylinder portion 62 in which the male terminal 12 is accommodated so as to be movable in the fitting direction is provided at a central portion on the distal end side (left side in FIG. 5) of the cylinder portion 56. An opening 64 that opens toward the female terminal 16 is provided on the distal end side (left side in FIG. 5) of the housing cylinder 62, while a male 66 is provided on the bottom 66 on the proximal end side of the housing cylinder 62. A through hole 68 through which the terminal 12 is inserted is penetrated, and an annular contact portion 70 protruding rightward in the axial direction is formed at the outer peripheral edge portion of the through hole 68. In addition, a substantially oval female housing receiving groove 72 surrounded by the cylindrical portion 56 and the receiving cylindrical portion 62 includes a deep bottom cylindrical receiving portion 74 adjacent to the cylindrical portion 56 and a shallow adjacent to the receiving cylindrical portion 62. And a bottom packing accommodating portion 76. In addition, as FIG. 1 shows, the accommodation cylinder part 62 is provided with 1 pair with respect to the longitudinal direction of the center part of the cylinder part 56 made into substantially oval cross-sectional shape.

さらに、図１及び図５に示されているように、筒部５６の先端側（図１及び図５中、左側）の外周縁部の上部には、断面Ｌ字形状で基端側に向かって突設されて、片持ち構造とされた矩形状の係合突部８０が設けられており、係合突部８０の中央部には、軸直方向斜め後方に向かって突出する係合突起８２が設けられている。一方、筒部５６の基端側（図１及び図５中、右側）の外周部の上部には、断面Ｌ字形状で先端側に向かって突設されて、片持ち構造とされた矩形状の係合解除部８３が設けられている。そして、係合突部８０と係合解除部８３は、平面視において、互いの突出端部が重なるような構成とされている。また、係合突部８０の軸方向の両側面から所定距離離隔した位置には、一対のガイド壁８４，８４が外方に向って突設されていると共に、一対のガイド壁８４，８４の後方の端部には、周方向に上部を連結する連結部８５が形成されている。 Further, as shown in FIGS. 1 and 5, the upper portion of the outer peripheral edge portion on the distal end side (left side in FIGS. 1 and 5) of the cylindrical portion 56 has an L-shaped cross section and faces the proximal end side. Is provided with a rectangular engaging protrusion 80 having a cantilever structure, and an engaging protrusion protruding obliquely rearward in the direction perpendicular to the axis is provided at the center of the engaging protrusion 80. 82 is provided. On the other hand, at the upper part of the outer peripheral portion on the base end side (right side in FIGS. 1 and 5) of the cylindrical portion 56, a rectangular shape projecting toward the distal end side with an L-shaped cross section and having a cantilever structure An engagement release portion 83 is provided. And the engagement protrusion 80 and the engagement cancellation | release part 83 are set as the structure where a mutual protrusion end part overlaps in planar view. In addition, a pair of guide walls 84, 84 project outwardly at positions spaced apart from both side surfaces in the axial direction of the engaging projection 80, and the pair of guide walls 84, 84 A connecting portion 85 that connects the upper portions in the circumferential direction is formed at the rear end.

そして、このような構造とされたオスハウジング１４に、オス端子１２を組み込む。より詳細には、予め、パッキン８６を、オスハウジング１４に嵌め込む。図１及び図５に示されているように、略円環形状のパッキン８６を、パッキン収容部７６の底まで押し入れる。そして、略円環状のパッキン固定部材８８を、パッキン収容部７６に嵌め込まれたパッキン８６に当接するまで押し入れる。これにより、パッキン固定部材８８の内周面に突設された係合突起９０が、収容筒部６２に貫設された係合孔９２に係合されて、パッキン固定部材８８が固定されると共に、パッキン８６が所定の位置に固定される。なお、パッキン固定部材８８は、パッキン８６に当接する側の端部がフランジ状とされており、より確実にパッキン８６を所定の位置に固定できるようになっている。同様に、電線収容筒体５８の突出端部から、パッキン９４とパッキン固定部材９８を押し入れることにより、パッキン固定部材９８の外周面に突設された係合突起１００が、電線収容筒体５８に貫設された係合孔１０２に係合されて、パッキン固定部材９８が固定されると共に、パッキン９４が所定の位置に固定されるようになっている。 Then, the male terminal 12 is incorporated into the male housing 14 having such a structure. More specifically, the packing 86 is fitted in the male housing 14 in advance. As shown in FIGS. 1 and 5, the substantially circular packing 86 is pushed into the bottom of the packing housing portion 76. Then, the substantially annular packing fixing member 88 is pushed in until it comes into contact with the packing 86 fitted in the packing housing portion 76. As a result, the engagement protrusions 90 projecting from the inner peripheral surface of the packing fixing member 88 are engaged with the engagement holes 92 penetrating the housing cylinder 62, and the packing fixing member 88 is fixed. The packing 86 is fixed at a predetermined position. The packing fixing member 88 has a flange-like end on the side in contact with the packing 86, so that the packing 86 can be fixed more securely at a predetermined position. Similarly, when the packing 94 and the packing fixing member 98 are pushed in from the projecting end portion of the electric wire housing cylinder 58, the engagement protrusion 100 projecting from the outer peripheral surface of the packing fixing member 98 becomes the electric wire housing cylinder 58. The packing fixing member 98 is fixed and the packing 94 is fixed at a predetermined position.

次に、このような構造とされたオスハウジング１４に、オス端子１２を組み込む。より詳細には、先ず、筒部５６の基端側（図５中、右側）からオス端子１２を挿入し、貫通孔６８を挿通して収容筒部６２に収容保持する。オス端子１２は、略円柱形状を有しており、銅や銅合金等の金属材料により形成されている。オス端子１２の基端部１０４は、それ以外の部分に比べて大径とされており、貫通孔６８の内径寸法よりも大きな外径寸法を有している。それ故、基端部１０４が貫通孔６８に当接することにより、ストッパ機能を発揮するようになっている。また、基端部１０４の底面に開口してねじ孔１０６が形成されている。オス端子１２の先端部１０８にはねじ溝が形成されており、合成樹脂製のキャップ１１０が螺合されている。 Next, the male terminal 12 is incorporated into the male housing 14 having such a structure. More specifically, first, the male terminal 12 is inserted from the base end side (the right side in FIG. 5) of the cylindrical portion 56, and is inserted into the receiving cylindrical portion 62 through the through hole 68. The male terminal 12 has a substantially cylindrical shape and is formed of a metal material such as copper or copper alloy. The base end portion 104 of the male terminal 12 has a larger diameter than the other portions, and has an outer diameter dimension larger than the inner diameter dimension of the through hole 68. Therefore, when the base end portion 104 abuts on the through hole 68, the stopper function is exhibited. Further, a screw hole 106 is formed in the bottom surface of the base end portion 104 so as to open. A screw groove is formed at the distal end portion 108 of the male terminal 12, and a cap 110 made of synthetic resin is screwed together.

続いて、被覆電線１１２が圧着された圧着端子１１４を、オスハウジング１４に嵌め込む。図１及び図５に示されているように、被覆電線１１２の先端側の絶縁被覆１１６を剥いで芯線１１８を露出させ、芯線１１８が露出された被覆電線１１２の先端部分を、圧着端子１１４の芯線加締め部１２０に加締め加工することにより、被覆電線１１２が圧着端子１１４に固定・接続される。この被覆電線１１２が圧着された圧着端子１１４を、電線収容筒体５８の突出端部から挿入し、圧着端子１１４の接続部１２２の貫通孔１２４と収容筒部６２の底部６６に設けられた貫通孔６８の中心軸が一致する位置に配設する。そして、圧着端子１１４の接続部１２２に設けられた貫通孔１２４を通して、筒部５６の基端側（図１及び図５中、右側）の開口部１２５から挿入したボルト１２６をオス端子１２のねじ孔１０６に螺合することにより、圧着端子１１４の接続部１２２とオス端子１２が固定されて、被覆電線１１２がオス端子１２と電気的に接続されるようになっている。 Subsequently, the crimp terminal 114 to which the covered electric wire 112 is crimped is fitted into the male housing 14. As shown in FIGS. 1 and 5, the insulation coating 116 on the distal end side of the covered electric wire 112 is peeled to expose the core wire 118, and the distal end portion of the covered electric wire 112 where the core wire 118 is exposed is connected to the crimp terminal 114. By crimping the core wire crimping portion 120, the covered electric wire 112 is fixed and connected to the crimp terminal 114. The crimp terminal 114 to which the covered electric wire 112 is crimped is inserted from the protruding end of the electric wire housing cylinder 58, and the through hole 124 of the connection portion 122 of the crimp terminal 114 and the bottom 66 of the housing cylinder portion 62 are provided. It arrange | positions in the position where the central axis of the hole 68 corresponds. Then, the bolt 126 inserted from the opening 125 on the base end side (right side in FIGS. 1 and 5) of the cylindrical portion 56 is passed through the through hole 124 provided in the connection portion 122 of the crimp terminal 114. By screwing into the hole 106, the connecting portion 122 of the crimp terminal 114 and the male terminal 12 are fixed, and the covered electric wire 112 is electrically connected to the male terminal 12.

次に、筒部５６の基端側の開口部１２５を、略楕円盤形状の蓋体１３０により覆蓋する。図１に示されているように、蓋体１３０に設けられた係合枠１３２と、筒部５６に突設された係合突起１３４を係合させることにより、覆蓋状態が保持されるようになっている。図５に示されているように、蓋体１３０の内面１３６の中央部には、付勢手段としてのコイルばね１３８が固着されており、圧着端子１１４の接続部１２２の周縁部と当接することにより、オス端子１２に軸方向左方（メスハウジング１８側）に向う付勢力が付勢されるようになっている。要するに、オスハウジング１４には、オスハウジング１４とメスハウジング１８の嵌合方向である軸方向において、オス端子１２をメスハウジング１８側に付勢する付勢手段たるコイルばね１３８が配設されているのである。そして、コイルばね１３８は、軸方向（嵌合方向）において、オス端子１２の基端部１０４を間に挟んで当接部７０と反対側に、オス端子１２の基端部１０４を当接部７０に当接保持する付勢力を与える付勢手段として設けられている一方、収容筒部６２と同軸状に配設されている。なお、コイルばね１３８の材料としては、金属材料は勿論のこと、合成樹脂材料等、用途に応じて、任意の材料が選択可能である。そして、図５に示されているように、オスハウジング１４へのオス端子１２の組込み状態においては、オス端子１２は、基端部１０４が当接部７０に、コイルばね１３８の付勢力により当接状態に保持されるようになっている。 Next, the opening portion 125 on the proximal end side of the cylindrical portion 56 is covered with a substantially elliptical disc-shaped lid body 130. As shown in FIG. 1, the cover lid state is maintained by engaging the engagement frame 132 provided on the lid 130 and the engagement protrusion 134 projecting from the cylindrical portion 56. It has become. As shown in FIG. 5, a coil spring 138 as an urging means is fixed to the central portion of the inner surface 136 of the lid 130, and comes into contact with the peripheral portion of the connection portion 122 of the crimp terminal 114. Thus, a biasing force toward the left side in the axial direction (female housing 18 side) is biased to the male terminal 12. In short, the male housing 14 is provided with a coil spring 138 as an urging means for urging the male terminal 12 toward the female housing 18 in the axial direction that is the fitting direction of the male housing 14 and the female housing 18. It is. The coil spring 138 has the base end portion 104 of the male terminal 12 in contact with the contact portion 70 on the side opposite to the contact portion 70 with the base end portion 104 of the male terminal 12 interposed therebetween in the axial direction (fitting direction). While being provided as an urging means for applying an urging force for abutting and holding 70, it is disposed coaxially with the accommodating cylinder portion 62. In addition, as a material of the coil spring 138, arbitrary materials can be selected according to use, such as a synthetic resin material as well as a metal material. As shown in FIG. 5, when the male terminal 12 is assembled in the male housing 14, the base terminal 104 is applied to the contact portion 70 by the urging force of the coil spring 138. It is held in contact.

最後に、オス端子１２を組み込んだオスハウジング１４に、メス端子１６を組み込んだメスハウジング１８を嵌合する。より詳細には、図１及び図２に示されているように、メスハウジング１８の係合突部３８から延出された一対の延出部４２，４２を、オスハウジング１４に突設された係合突部８０と一対のガイド壁８４，８４の隙間に挿入する。さらに、メスハウジング１８をオスハウジング１４に向かって押し込むことにより、係合突部３８の先端部に突設された係合突起４０が、係合突部８０に突設された係合突起８２に係合して、オス端子１２を組み込んだオスハウジング１４に、メス端子１６を組み込んだメスハウジング１８が嵌合されるようになっている。すなわち、メスハウジング１８に形成された係合突起４０と、オスハウジング１４に形成された係合突起８２を含んで、ロック機構が構成されているのである。また、係合解除部８３を押すことにより、片持ち構造とされた係合解除部８３が下方に弾性変形される。これにより、係合突部８０の突出端部が下方に弾性変形されて、係合突起４０と係合突起８２による係合が解除されることから、メスハウジング１８をオスハウジング１４から外すことができる。要するに、係合突起４０と係合突起８２に係合解除部８３を加えることにより、離脱可能なロック機構が構成されているのである。ここで、係合突部３８と一対のガイド壁８４，８４の連結部８５との間には、隙間寸法：Ｌ１の隙間が形成されている。 Finally, the female housing 18 incorporating the female terminal 16 is fitted into the male housing 14 incorporating the male terminal 12. More specifically, as shown in FIGS. 1 and 2, a pair of extending portions 42, 42 extending from the engaging protrusion 38 of the female housing 18 are provided on the male housing 14. It is inserted into the gap between the engaging protrusion 80 and the pair of guide walls 84, 84. Further, when the female housing 18 is pushed toward the male housing 14, the engaging protrusion 40 protruding from the distal end portion of the engaging protrusion 38 becomes the engaging protrusion 82 protruding from the engaging protrusion 80. The female housing 18 incorporating the female terminal 16 is fitted into the male housing 14 incorporating the male terminal 12 by engaging. That is, the lock mechanism is configured to include the engagement protrusion 40 formed on the female housing 18 and the engagement protrusion 82 formed on the male housing 14. Further, by pushing the engagement release portion 83, the engagement release portion 83 having a cantilever structure is elastically deformed downward. As a result, the protruding end of the engaging protrusion 80 is elastically deformed downward, and the engagement by the engaging protrusion 40 and the engaging protrusion 82 is released, so that the female housing 18 can be removed from the male housing 14. it can. In short, a lock mechanism that can be detached is configured by adding an engagement release portion 83 to the engagement protrusion 40 and the engagement protrusion 82. Here, a gap of a gap dimension: L <b> 1 is formed between the engaging protrusion 38 and the connecting portion 85 of the pair of guide walls 84 and 84.

上述の如き構造とされたコネクタ１０は、図５及び図６に示されているように、オスハウジング１４のメスハウジング収容溝７２にメスハウジング１８の筒体部２０が、またオスハウジング１４の収容筒部６２にメスハウジング１８のメス端子収容部２６を構成する筒体２８が、収容保持されるようになっている。これにより、メス端子１６の弾性接触片４８の接続部５０がオス端子１２の外周に弾性保持されると共に、メス端子１６とオス端子１２が電気的に接続されるようになっている。また、オスハウジング１４のメスハウジング収容溝７２にメスハウジング１８の筒体部２０が嵌め込まれることにより、オスハウジング１４とメスハウジング１８の嵌合対向面間、すなわちオスハウジング１４の収容筒部６２の外面とメスハウジング１８の筒体部２０の内面の間、に収容配置されている弾性部材たるパッキン８６は、軸直方向（嵌合方向に直交する方向）で圧接されるようになっている。これにより、嵌合方向に直交する方向に伝達される微振動等をパッキン８６で吸収することができ、オス端子１２とメス端子１６の接続部５０への振動伝達を有利に防止して、コネクタ１０の耐久性や接続安定性の向上を図ることができるのである。そして、図６に示すように、メス端子１６に接続したオス端子１２が図５中の右方向に押し込まれることにより、オス端子１２の基端部１０４と当接部７０間に隙間寸法：Ｌ２の隙間が形成される。ここで、隙間寸法：Ｌ２は、係合突部３８と連結部８５間の隙間寸法：Ｌ１よりも大きくされている。要するに、オスハウジング１４とメスハウジング１８の嵌合状態において、メス端子１６に接続されたオス端子１２が、コイルばね１３８の付勢力に抗して、ロック機構の隙間寸法：Ｌ１よりも大きな押込寸法：Ｌ２で、オスハウジング１４側に押し込まれるようになっているのである。なお、オス端子１２がメス端子１６に接続された状態で、コイルばね１３８の付勢力に抗して第１ハウジング側に押し込まれるためには、コイルばね１３８の付勢力がオス端子１２とメス端子１６間の挿入力よりも大きいことが必要となることは、言うまでもない。 As shown in FIGS. 5 and 6, the connector 10 having the above-described structure is configured such that the cylindrical body portion 20 of the female housing 18 and the male housing 14 are accommodated in the female housing accommodating groove 72 of the male housing 14. The cylindrical body 28 constituting the female terminal accommodating portion 26 of the female housing 18 is accommodated and held in the cylindrical portion 62. Thereby, the connection part 50 of the elastic contact piece 48 of the female terminal 16 is elastically held on the outer periphery of the male terminal 12, and the female terminal 16 and the male terminal 12 are electrically connected. Further, when the cylindrical body portion 20 of the female housing 18 is fitted into the female housing receiving groove 72 of the male housing 14, between the mating facing surfaces of the male housing 14 and the female housing 18, that is, of the receiving cylindrical portion 62 of the male housing 14. The packing 86, which is an elastic member housed and arranged between the outer surface and the inner surface of the cylindrical body portion 20 of the female housing 18, is pressed in the axial direction (direction perpendicular to the fitting direction). As a result, fine vibrations transmitted in the direction perpendicular to the fitting direction can be absorbed by the packing 86, and vibration transmission to the connecting portion 50 between the male terminal 12 and the female terminal 16 is advantageously prevented. Thus, the durability and the connection stability can be improved. And as shown in FIG. 6, when the male terminal 12 connected to the female terminal 16 is pushed rightward in FIG. 5, the gap dimension: L2 between the base end portion 104 of the male terminal 12 and the contact portion 70 is obtained. A gap is formed. Here, the gap dimension L2 is larger than the gap dimension L1 between the engagement protrusion 38 and the connecting portion 85. In short, when the male housing 14 and the female housing 18 are in the fitted state, the male terminal 12 connected to the female terminal 16 resists the biasing force of the coil spring 138 and has a clearance dimension larger than the clearance dimension L1 of the lock mechanism. : At L2, it is pushed into the male housing 14 side. In order to be pushed into the first housing against the biasing force of the coil spring 138 with the male terminal 12 connected to the female terminal 16, the biasing force of the coil spring 138 is the male terminal 12 and the female terminal. Needless to say, the insertion force between 16 needs to be larger.

このような構造とされたコネクタ１０によれば、嵌合状態において、メス端子１６に接続されたオス端子１２が、コイルばね１３８の付勢力に抗して、オスハウジング１４側に押し込まれるようになっている。しかも、メス端子１６に接続されたオス端子１２のオスハウジング１４への押込寸法：Ｌ２が、ロック機構に設けられる隙間寸法：Ｌ１よりも大きくされている。これにより、メス端子１６に接続されたオス端子１２を、オスハウジング１４やメスハウジング１８に対して、コイルばね１３８を介して弾性支持された状態に保持することができる。その結果、自動車の走行時等の振動によりオスハウジング１４とメスハウジング１８が嵌合方向に相対変位した場合でも、その振動はコイルばね１３８によって吸収又は絶縁することができる。それ故、オス端子１２とメス端子１６の接続部分（接続部５０）に振動等が各ハウジング１４，１８を介して伝達されることが回避され、オス端子１２とメス端子１６の接続部分（接続部５０）の摺動の発生防止について根本的な解決を図ることができたのである。 According to the connector 10 having such a structure, the male terminal 12 connected to the female terminal 16 is pushed into the male housing 14 side against the biasing force of the coil spring 138 in the fitted state. It has become. Moreover, the pushing dimension L2 of the male terminal 12 connected to the female terminal 16 into the male housing 14 is larger than the gap dimension L1 provided in the lock mechanism. Thereby, the male terminal 12 connected to the female terminal 16 can be held elastically supported by the male housing 14 and the female housing 18 via the coil spring 138. As a result, even when the male housing 14 and the female housing 18 are relatively displaced in the fitting direction due to vibrations during traveling of the automobile, the vibrations can be absorbed or insulated by the coil spring 138. Therefore, it is avoided that vibration or the like is transmitted to the connection portion (connection portion 50) between the male terminal 12 and the female terminal 16 via the housings 14 and 18, and the connection portion (connection) between the male terminal 12 and the female terminal 16 is connected. It was possible to fundamentally solve the problem of preventing the sliding of the part 50).

また、これにより、従来の如きオス端子１２とメス端子１６の接続部分（接続部５０）に直接ばねの付勢力を及ぼして圧接力を高める場合に比して、オス端子１２とメス端子１６の挿入力を増加させることなく、それらの接続安定性や耐久性を確保することができる。さらに、オス端子１２とメス端子１６の接続部分（接続部５０）を各ハウジング１４，１８から伝達される振動に対して絶縁状態に保持できることから、従来構造に比して、自動車の走行時等の振動による接続部分（接続部５０）の摩耗や位置ずれ等の問題発生を確実に防止することができる。 In addition, as a result, the male terminal 12 and the female terminal 16 can be compared with the conventional case in which the urging force of the spring is directly applied to the connecting portion (connecting portion 50) between the male terminal 12 and the female terminal 16 to increase the pressure contact force. Their connection stability and durability can be ensured without increasing the insertion force. Furthermore, since the connection part (connection part 50) of the male terminal 12 and the female terminal 16 can be kept in an insulated state with respect to vibration transmitted from the housings 14 and 18, when the vehicle is traveling, etc. It is possible to reliably prevent the occurrence of problems such as wear and misalignment of the connecting portion (connecting portion 50) due to the vibrations.

しかも、オスハウジング１４において、オス端子１２を嵌合方向で移動可能に収容する収容筒部６２が設けられていることから、オス端子１２の嵌合方向における位置決め安定性を有利に確保することができる。それ故、メス端子１６に接続状態とされたオス端子１２をハウジング内の所定位置で安定して弾性保持することができ、オス端子１２とメス端子１６の接続安定性を有利に確保できる。 In addition, since the housing cylinder portion 62 that accommodates the male terminal 12 so as to be movable in the fitting direction is provided in the male housing 14, it is possible to advantageously ensure the positioning stability of the male terminal 12 in the fitting direction. it can. Therefore, the male terminal 12 connected to the female terminal 16 can be stably elastically held at a predetermined position in the housing, and the connection stability between the male terminal 12 and the female terminal 16 can be advantageously ensured.

加えて、オスハウジング１４とオス端子１２の基端部１０４側との隙間スペースを有効利用してコイルばね１３８を収容筒部６２と同軸状に配設することにより、オス端子１２のオスハウジング１４内での位置決め安定性を確保しつつ、オス端子１２をメスハウジング１８側に付勢させることができる。これにより、コネクタ１０の省スペース化を図りつつ、メス端子１６に接続されたオス端子１２を、オスハウジング１４やメスハウジング１８に対して、コイルばね１３８を介して弾性支持させる構造を安定して実現することができる。 In addition, the coil spring 138 is disposed coaxially with the housing cylinder portion 62 by effectively utilizing the gap space between the male housing 14 and the base end portion 104 side of the male terminal 12, so that the male housing 14 of the male terminal 12. The male terminal 12 can be urged toward the female housing 18 side while securing the positioning stability inside. Thereby, the structure which elastically supports the male terminal 12 connected to the female terminal 16 with respect to the male housing 14 and the female housing 18 via the coil spring 138 is achieved while saving the space of the connector 10. Can be realized.

以上、本発明の実施形態について詳述したが、これはあくまでも例示であって、本発明は、かかる実施形態における具体的な記載によって、何等、限定的に解釈されるものではない。 As mentioned above, although embodiment of this invention was explained in full detail, this is an illustration to the last, Comprising: This invention is not limited at all by the concrete description in this embodiment.

例えば、オス端子１２の基端部１０４が大径化されることによって、コイルばね１３８の付勢力によりオス端子１２が当接部７０に当接状態に保持されるようになっていたが、これに限定されない。例えば、オス端子１２を径寸法が一定の筒状となし、オス端子１２の基端部１０４の周囲に合成樹脂製の筒体を取り付け、該筒体に設けた大径部をコイルばねの付勢力により、当接部７０に当接状態に保持するようにしてもよい。 For example, when the diameter of the base end portion 104 of the male terminal 12 is increased, the male terminal 12 is held in contact with the contact portion 70 by the biasing force of the coil spring 138. It is not limited to. For example, the male terminal 12 is formed in a cylindrical shape having a constant diameter, a cylindrical body made of synthetic resin is attached around the base end portion 104 of the male terminal 12, and the large-diameter portion provided on the cylindrical body is attached with a coil spring. You may make it hold | maintain at the contact part 70 in contact with force.

その他、一々列挙はしないが、本発明は、当業者の知識に基づいて種々なる変更，修正，改良等を加えた態様において実施され得るものであり、また、そのような実施態様が、本発明の趣旨を逸脱しない限り、何れも、本発明の範囲内に含まれるものであることは、言うまでもない。 In addition, although not enumerated one by one, the present invention can be carried out in a mode to which various changes, modifications, improvements and the like are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the present invention.

１０：コネクタ、１２：オス端子（第１接続端子）、１４：オスハウジング（第１ハウジング）、１６：メス端子（第２接続端子）、１８：メスハウジング（第２ハウジング）、４０：係合突起（ロック機構）、６２：収容筒部、６４：開口部、７０：当接部、８２：係合突起（ロック機構）、８３：係合解除部（ロック機構）、８６：パッキン（弾性部材）、１０４：基端部、１３８：コイルばね（付勢手段） 10: connector, 12: male terminal (first connection terminal), 14: male housing (first housing), 16: female terminal (second connection terminal), 18: female housing (second housing), 40: engagement Protrusion (locking mechanism), 62: receiving cylinder, 64: opening, 70: abutting part, 82: engaging protrusion (locking mechanism), 83: disengaging part (locking mechanism), 86: packing (elastic member) ), 104: base end portion, 138: coil spring (biasing means)

Claims

A first housing for accommodating and holding the first connection terminal;
And a second housing that receives and holds the second connection terminal that is electrically connected to the first connection terminal, and is detachably fitted to the first housing via a lock mechanism. And
The first housing is provided with a biasing means for biasing the first connection terminal toward the second housing in the fitting direction of the first housing and the second housing.
In the fitting state of the first housing and the second housing, the first connection terminal connected to the second connection terminal resists the urging force of the urging means from the clearance dimension of the lock mechanism. Is a large push-in dimension, and is pushed into the first housing side .
The first housing is provided with an accommodating cylinder portion in which the first connection terminal is accommodated so as to be movable in the fitting direction. The distal end side of the accommodating cylinder portion faces the second connection terminal. On the other hand, on the base end side of the housing cylinder portion, there is a contact portion where the base end portion of the first connection terminal is contacted and held by the biasing force of the biasing means. While being provided
In the fitting direction, the base end portion of the first connection terminal is biased toward the contact portion on the side opposite to the contact portion with the base end portion of the first connection terminal interposed therebetween. A coil spring as the urging means is disposed coaxially with the accommodating cylinder part,
The end face of the base end portion of the first connection terminal is overlapped with a connection portion of a crimp terminal crimped to a covered electric wire terminal, and is inserted through a through hole provided in the connection portion of the crimp terminal. The crimp terminal of the covered electric wire terminal is fixed to the end surface of the base end portion of the first connection terminal by a bolt that is screwed into a screw hole that opens to the base end portion of the first connection terminal. on the other hand,
The second housing is adapted to be fitted to one end side of the first housing in the fitting direction, and an opening covered with a lid is provided on the other end side of the fitting direction. The coil spring is disposed around the bolt, and the coil spring is disposed between the crimp terminal fixed to the end surface of the base end portion of the first connection terminal and the lid body. A connector, wherein the spring is compressed and arranged .

2. The connector according to claim 1, wherein an elastic member that is press-contacted in a direction orthogonal to the fitting direction is accommodated between the fitting facing surfaces of the first housing and the second housing.