JP2019036466A - connector - Google Patents

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Publication number
JP2019036466A
JP2019036466A JP2017157077A JP2017157077A JP2019036466A JP 2019036466 A JP2019036466 A JP 2019036466A JP 2017157077 A JP2017157077 A JP 2017157077A JP 2017157077 A JP2017157077 A JP 2017157077A JP 2019036466 A JP2019036466 A JP 2019036466A
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Japan
Prior art keywords
housing
terminal
terminal fitting
fitting
conductive member
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JP2017157077A
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Japanese (ja)
Inventor
新史 野崎
Shinji Nozaki
新史 野崎
康雄 大森
Yasuo Omori
康雄 大森
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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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Application filed by Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP2017157077A priority Critical patent/JP2019036466A/en
Priority to PCT/JP2018/028016 priority patent/WO2019035332A1/en
Publication of JP2019036466A publication Critical patent/JP2019036466A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement

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  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

To reduce the size.SOLUTION: A connector comprises: a terminal metal tool 26 (first terminal metal tool) attached to a first housing 10; a second housing 40 fittable with the first housing 10; a terminal metal tool 26 (second terminal metal tool) attached to a second housing 40; and an elastic conductive member 23 nipped in an almost parallel with a fitting direction of both housings 10 and 40 between the terminal metal tool 26 of the first housing 10 and the terminal metal tool 26 of the second housing 40. When fitting both the housings 10 and 40, the terminal metal tool 26 of the first housing 10 and the terminal metal tool 26 of the second housing 40 are conductively connected through the elastic conductive member 23. The terminal metal tool 26 of the first housing 10 and the terminal metal tool 26 of the second housing 40 are not in a connection form of inserting one of them into the other, and a dimension in a direction crossing to the fitting direction of both the housings 10 and 40 can be reduced.SELECTED DRAWING: Figure 4

Description

本発明は、コネクタに関するものである。   The present invention relates to a connector.

特許文献１には、雌側ハウジングに取り付けた雌端子金具と、雄側ハウジングに取り付けた雄端子金具を接続するコネクタが開示されている。雌端子金具は角筒状の電気接続部を有しており、電気接続部内には弾性接触片が収容されている。両端子金具を接続する際には、雄端子金具の先端のタブを電気接続部内に挿入し、タブに対して弾性接触片を弾性的に接触させる。   Patent Document 1 discloses a connector that connects a female terminal fitting attached to a female housing and a male terminal fitting attached to a male housing. The female terminal fitting has a rectangular tube-shaped electrical connection portion, and an elastic contact piece is accommodated in the electrical connection portion. When connecting both terminal fittings, the tab at the tip of the male terminal fitting is inserted into the electrical connection portion, and the elastic contact piece is brought into elastic contact with the tab.

特開２０１６−２２５２２２号公報JP 2016-225222 A

上記のコネクタでは、電気接続部の内部に弾性接触片とタブが収容されるので、弾性接触片の弾性変形方向において電気接続部の寸法が大きくなる。そのため、コネクタを小型化することには限界がある。第１の発明は上記事情を勘案して完成されたものであって、小型化を図ることを目的とする。   In the above connector, since the elastic contact piece and the tab are accommodated inside the electric connection portion, the dimension of the electric connection portion is increased in the elastic deformation direction of the elastic contact piece. Therefore, there is a limit to downsizing the connector. The first invention has been completed in view of the above circumstances, and aims to reduce the size.

また、上記のコネクタを構成する雌端子金具と雄端子金具は、電線の端末部に接続されるのであるが、電線を接続するための圧着部と、相手側端子金具に接続される端子接続部とが、別々の部位として形成されているため、構造が複雑である。第２及び第３の発明は上記事情を勘案して完成されたものであって、形状の簡素化を図ることを目的とする。   In addition, the female terminal fitting and the male terminal fitting constituting the connector are connected to the terminal portion of the electric wire, but the crimping portion for connecting the electric wire and the terminal connecting portion connected to the mating terminal fitting However, the structure is complicated because they are formed as separate parts. The second and third inventions have been completed in view of the above circumstances, and an object thereof is to simplify the shape.

第１の発明のコネクタは、
第１ハウジングと、
前記第１ハウジングに取り付けた第１端子金具と、
前記第１ハウジングと嵌合可能な第２ハウジングと、
前記第２ハウジングに取り付けた第２端子金具と、
前記第１端子金具と前記第２端子金具との間で、前記第１ハウジングと前記第２ハウジングの嵌合方向と略平行に挟まれる弾性導電部材とを備えていることを特徴とする。 The connector of the first invention is
A first housing;
A first terminal fitting attached to the first housing;
A second housing engageable with the first housing;
A second terminal fitting attached to the second housing;
An elastic conductive member sandwiched between the first terminal metal fitting and the second terminal metal fitting and substantially parallel to the fitting direction of the first housing and the second housing is provided.

第２の発明の端子付き導電路は、
芯線を絶縁被覆で包囲した被覆電線と、前記被覆電線の前端部に接続された端子金具とを備え、
前記端子金具は、前記芯線を締付け状態で包囲し、外面が相手側端子との接続手段として機能する筒状接続部を有していることを特徴とする。 The conductive path with a terminal of the second invention is:
A covered electric wire in which a core wire is surrounded by an insulating coating, and a terminal fitting connected to a front end portion of the covered electric wire,
The terminal fitting includes a cylindrical connection portion that surrounds the core wire in a tightened state, and has an outer surface that functions as a connection means with a counterpart terminal.

第３の発明の端子金具は、
芯線を絶縁被覆で包囲した被覆電線の前端部に接続されることで端子付き導電路を構成する端子金具であって、
前記芯線を締付け状態で包囲し、外面が相手側端子との接続手段として機能する筒状接続部を有していることを特徴とする。 The terminal fitting of the third invention is
A terminal fitting constituting a conductive path with a terminal by being connected to a front end portion of a covered electric wire surrounding a core wire with an insulation coating,
The core wire is enclosed in a tightened state, and the outer surface has a cylindrical connection portion that functions as a connection means with a counterpart terminal.

第１の発明によれば、第１ハウジングと第２ハウジングを嵌合すると、第１端子金具と第２端子金具は弾性導電部材を介して導通可能に接続される。第１端子金具と第２端子金具は、一方を他方の内部に挿入する接続形態とはならないので、両ハウジングの嵌合方向と交差する方向の寸法を小さくできる。
また、第２及び第３の発明によれば、筒状接続部が、芯線に固着する機能と、相手側端子に接続する機能とを兼ね備えているので、端子金具の形状を簡素化することができる。 According to the first invention, when the first housing and the second housing are fitted, the first terminal fitting and the second terminal fitting are connected through the elastic conductive member so as to be conductive. Since the first terminal fitting and the second terminal fitting do not have a connection form in which one is inserted into the other, the dimension in the direction intersecting the fitting direction of both housings can be reduced.
Further, according to the second and third inventions, the cylindrical connecting portion has both the function of fixing to the core wire and the function of connecting to the mating terminal, so the shape of the terminal fitting can be simplified. it can.

実施例１のコネクタの分解状態をあらわす斜視図The perspective view showing the disassembled state of the connector of Example 1 雌側コネクタの側断面図Side cross-sectional view of female connector 雄側コネクタの側断面図Side cross-sectional view of male connector 雌側コネクタと雄側コネクタの嵌合状態をあらわす側断面図Side sectional view showing the mating state of female and male connectors 第１コネクタの分解状態をあらわす側断面図Side sectional view showing the disassembled state of the first connector 第１ハウジングの正面図Front view of first housing 第１ハウジングの背面図Rear view of the first housing 第１ハウジングの部分拡大背面図Partial enlarged rear view of the first housing 第１ハウジングに端子金具を挿入した状態をあらわす部分拡大背面図Partial enlarged rear view showing a state in which the terminal fitting is inserted into the first housing 第２ハウジングと端子金具を分離した状態をあらわす側断面図Side sectional view showing a state where the second housing and terminal fitting are separated 第２ハウジングの背面図Rear view of second housing フロントホルダ背面図Front holder rear view 弾性導電部材の部分拡大正面図Partial enlarged front view of elastic conductive member 図１３のＸ−Ｘ線断面図XX sectional view of FIG. 端子金具を被覆電線に接続した状態をあらわす側面図Side view showing the state in which the terminal fitting is connected to the covered wire 端子金具を被覆電線に接続した状態をあらわす正面図Front view showing the state in which the terminal fitting is connected to the covered wire 図１５のＹ−Ｙ線断面図YY sectional view of FIG. 端子金具を被覆電線に接続した状態をあらわす側断面図Side sectional view showing the state in which the terminal fitting is connected to the covered wire 端子金具の成形前の状態をあらわす側面図Side view showing the state before molding terminal fittings 端子金具の成形前の状態をあらわす背面図Rear view showing the state before molding of terminal fittings 被覆電線を接続せずに端子金具の筒状接続部を形成した状態をあらわす側面図Side view showing the state where the cylindrical connection part of the terminal fitting is formed without connecting the covered wire

第１の発明は、請求項２に記載のように、前記弾性導電部材が前記第２ハウジングと対向するように前記第１ハウジングに保持されていてもよい。この構成によれば、弾性導電部材を第１ハウジングと一体的に取り扱うことができるで、取り扱いや両ハウジングの嵌合作業が容易である。   In a first aspect of the present invention, the elastic conductive member may be held by the first housing so as to face the second housing. According to this configuration, the elastic conductive member can be handled integrally with the first housing, and handling and fitting work of both housings are easy.

第１の発明は、請求項３に記載のように、前記弾性導電部材は、可撓性を有する導体を弾性体内に埋設した形態であってもよい。この構成によれば、導体が剥き出しにならないので、他部材の干渉に起因する導体の破損等を防止できる。   According to a first aspect of the present invention, the elastic conductive member may have a form in which a flexible conductor is embedded in an elastic body. According to this configuration, since the conductor is not exposed, damage to the conductor due to interference of other members can be prevented.

第１の発明は、請求項４に記載のように、前記第１端子金具と前記第２端子金具が複数ずつ並列配置されており、前記弾性体は、前記第１端子金具及び前記第２端子金具の並列方向に長い形状であり、複数の前記導体が、複数の前記第１端子金具及び複数の前記第２端子金具と対応して並ぶように配されていてもよい。この構成によれば、１つの弾性導電部材によって複数の第１端子金具と複数の第２端子金具を個別に導通させることができる。   According to a first aspect of the present invention, a plurality of the first terminal fittings and the second terminal fittings are arranged in parallel, and the elastic body includes the first terminal fitting and the second terminal. It may be long in the parallel direction of the metal fittings, and the plurality of conductors may be arranged so as to correspond to the plurality of first terminal metal fittings and the plurality of second terminal metal fittings. According to this configuration, the plurality of first terminal fittings and the plurality of second terminal fittings can be individually conducted by one elastic conductive member.

第１の発明は、請求項５に記載のように、前記第１端子金具と前記第２端子金具が同一形状であってもよい。この構成によれば、部品の種類数を減らすことができる。   In a first aspect of the present invention, the first terminal fitting and the second terminal fitting may have the same shape. According to this configuration, the number of types of parts can be reduced.

第１の発明は、請求項６に記載のように、前記第１端子金具と前記第２端子金具は、芯線を絶縁被覆で包囲した被覆電線の前端部に接続されており、前記第１端子金具及び前記第２端子金具には、前記芯線を締付け状態で包囲し、外面が前記弾性導電部材との接続手段として機能する筒状接続部が形成されていてもよい。この構成によれば、筒状接続部が、芯線に固着する機能と、弾性導電部材に接続する機能とを兼ね備えているので、第１端子金具及び第２端子金具の形状を簡素化することができる。   According to a first aspect of the present invention, the first terminal fitting and the second terminal fitting are connected to a front end portion of a covered electric wire in which a core wire is surrounded by an insulating coating, and the first terminal The metal fitting and the second terminal metal fitting may be formed with a cylindrical connection portion that surrounds the core wire in a tightened state and whose outer surface functions as a connection means with the elastic conductive member. According to this configuration, since the cylindrical connecting portion has both a function of fixing to the core wire and a function of connecting to the elastic conductive member, the shapes of the first terminal fitting and the second terminal fitting can be simplified. it can.

（ａ）第２及び第３の発明は、前記筒状接続部内には、前記芯線のうち前記絶縁被覆を除去した領域のみが収容されていてもよい。この構成によれば、筒状接続部の外径を小さくすることができる。   (A) In the second and third inventions, only the region of the core wire from which the insulating coating has been removed may be accommodated in the cylindrical connecting portion. According to this configuration, the outer diameter of the cylindrical connecting portion can be reduced.

（ｂ）第２及び第３の発明は、前記筒状接続部の後端に連なり、前記被覆電線のうち前記絶縁被覆が前記芯線を包囲する領域を締付け状態で包囲する被覆包囲部を備えていてもよい。この構成によれば、被覆電線と端子金具が、筒状接続部と被覆包囲部の両方において締付け状態で固着されるので、被覆電線と端子金具との固着強度が高い。   (B) 2nd and 3rd invention is equipped with the coating | coated surrounding part which is connected to the rear end of the said cylindrical connection part, and surrounds the area | region where the said insulation coating | cover surrounds the said core wire among the said covered electric wires. May be. According to this configuration, since the covered electric wire and the terminal fitting are fixed in a tightened state in both the cylindrical connecting portion and the covering surrounding portion, the fixing strength between the covered electric wire and the terminal fitting is high.

（ｃ）第２及び第３の発明は、（ｂ）において、前記被覆包囲部には、前記被覆包囲部の後端から軸線方向前方へ延びる一対のスリットと、前記スリットに沿うように後方へ片持ち状に延出し且つ後方に向かうほど径方向外方へ拡がった一対の抜止め部とが形成されていてもよい。この構成によれば、ハウジングに挿入した端子金具は、抜止め部をハウジングに係止させることによって抜止めされる。抜止め部は、スリットに沿うように片持ち状に延出した形態なので、形状がシンプルである。   (C) In the second and third aspects of the present invention, in (b), the cover surrounding portion includes a pair of slits extending in the axial direction from the rear end of the cover surrounding portion, and rearward along the slit. A pair of retaining portions that extend in a cantilever shape and expand outward in the radial direction toward the rear may be formed. According to this configuration, the terminal fitting inserted into the housing is prevented from being pulled out by engaging the retaining portion with the housing. Since the retaining portion extends in a cantilever shape along the slit, the shape is simple.

（ｄ）第２及び第３の発明は、（ｃ）において、前記被覆包囲部のうち前記抜止め部より前方の領域には、前記絶縁被覆の外周を締め付ける被覆締付部が形成されていてもよい。この構成によれば、被覆締付部を縮径変形させて絶縁被覆の外周を締め付け加工すると、締付け加工に伴い、抜止め部が後方に向かうほど径方向外方へ拡がるように変形する。したがって、絶縁被覆を被覆締付部で締め付ける加工と、抜止め部を径方向外方へ拡げる加工とを、１工程で行うことができる。   (D) In the second and third aspects of the present invention, in (c), a covering fastening portion for tightening the outer periphery of the insulating coating is formed in a region of the covering surrounding portion in front of the retaining portion. Also good. According to this configuration, when the outer diameter of the insulating coating is tightened by reducing the diameter of the covering tightening portion, the retaining portion is deformed so as to expand outward in the radial direction as it moves rearward. Therefore, the process of tightening the insulating coating with the cover tightening portion and the process of expanding the retaining portion radially outward can be performed in one step.

＜実施例１＞
以下、本発明を具体化した実施例１を図１〜図２１を参照して説明する。本実施例のコネクタは、互いに嵌合・離脱が可能な雌側コネクタＦと雄側コネクタＭとを備えている。尚、以下の説明において、雌側コネクタＦの前後の方向については、図２，４，５における右方を前方と定義し、雄側コネクタＭの前後の方向については、図３，４，１０における左方を前方と定義する。上下の方向については、図１〜１２，１５〜２１にあらわれる向きを、そのまま上方、下方と定義する。左右の方向については、図６〜９，１１〜１４，１６，１７，２０にあらわれる向きを、そのまま左方、右方と定義する。 <Example 1>
Embodiment 1 of the present invention will be described below with reference to FIGS. The connector of the present embodiment includes a female connector F and a male connector M that can be fitted and detached from each other. In the following description, for the front-rear direction of the female connector F, the right side in FIGS. 2, 4 and 5 is defined as the front, and for the front-rear direction of the male connector M, FIGS. The left side of is defined as the front. For the up and down directions, the directions appearing in FIGS. 1 to 12 and 15 to 21 are defined as “upper” and “lower” as they are. Regarding the left and right directions, the directions appearing in FIGS. 6 to 9, 11 to 14, 16, 17 and 20 are defined as left and right as they are.

雌側コネクタＦは、合成樹脂製の第１ハウジング１０と、１つのフロントホルダ１９と、複数（本実施例では３つ）の弾性導電部材２３と、複数の端子金具２６（請求項に記載の第１端子金具）とを備えて構成されている。   The female connector F includes a first housing 10 made of synthetic resin, one front holder 19, a plurality (three in this embodiment) of elastic conductive members 23, and a plurality of terminal fittings 26 (described in the claims). First terminal metal fitting).

第１ハウジング１０には、その前端面（両コネクタＦ，Ｍが嵌合するときに第２ハウジング４０と対向する面）を凹ませた形態の収容凹部１１が形成されている。収容凹部１１の左右両内側面には、上下方向（両ハウジング１０，４０の嵌合方向と直交する方向）に延びる一対のガイド溝１２が形成されている。ガイド溝１２は、第１ハウジング１０の下面に開放されている。両ガイド溝１２の上下方向略中央部には、第１ハウジング１０の外側面に開口する係止孔１３が形成されている。   The first housing 10 is formed with a housing recess 11 having a recessed front end surface (a surface facing the second housing 40 when the connectors F and M are fitted together). A pair of guide grooves 12 extending in the vertical direction (a direction orthogonal to the fitting direction of the housings 10 and 40) are formed on the left and right inner side surfaces of the housing recess 11. The guide groove 12 is opened on the lower surface of the first housing 10. A locking hole 13 that opens to the outer side surface of the first housing 10 is formed at a substantially central portion in the vertical direction of the both guide grooves 12.

第１ハウジング１０の内部には、前後方向に細長い複数の第１端子収容室１４が上下３段に分かれて形成されている。上中下の各段において、複数の第１端子収容室１４が左右方向に一定ピッチで並列して配置されている。各第１端子収容室１４の前端側領域は、前後方向に細長い第１小径収容部１５となっている。第１小径収容部１５の軸線と直角に切断したときの断面形状は、円形である。第１小径収容部１５の前端は収容凹部１１に開口している。   Inside the first housing 10, a plurality of first terminal accommodating chambers 14 elongated in the front-rear direction are formed in three upper and lower stages. In each of the upper, middle, and lower stages, a plurality of first terminal accommodating chambers 14 are arranged in parallel at a constant pitch in the left-right direction. A front end side region of each first terminal accommodating chamber 14 is a first small diameter accommodating portion 15 elongated in the front-rear direction. The cross-sectional shape when cut at right angles to the axis of the first small-diameter accommodating portion 15 is a circle. The front end of the first small-diameter accommodating portion 15 is open to the accommodating recess 11.

各第１端子収容室１４の後端側領域は、第１小径収容部１５の後端に同軸状に連なった第１大径収容部１６となっている。第１大径収容部１６の軸線と直角に切断したときの断面形状は、概ね円形であり、詳細には上下寸法が左右寸法より僅かに大きい長円形をなしている。第１大径収容部１６の左右寸法は第１小径収容部１５の内径よりも大きく、この寸法差により、第１大径収容部１６の前端部には第１前止まり部１７が形成されている。第１大径収容部１６の後端は、第１ハウジング１０の後端面に開口している。第１大径収容部１６の後端部内周には、その上面部を径方向内側へ突出させた形態の左右対称な一対の第１抜止め突起１８が形成されている。   The rear end region of each first terminal accommodating chamber 14 is a first large diameter accommodating portion 16 that is coaxially connected to the rear end of the first small diameter accommodating portion 15. The cross-sectional shape when cut at right angles to the axis of the first large-diameter accommodating portion 16 is generally circular, and more specifically, it has an oval shape whose vertical dimension is slightly larger than the horizontal dimension. The left and right dimensions of the first large-diameter accommodating portion 16 are larger than the inner diameter of the first small-diameter accommodating portion 15, and due to this dimensional difference, the first front stop portion 17 is formed at the front end portion of the first large-diameter accommodating portion 16. Yes. The rear end of the first large-diameter accommodating portion 16 is open to the rear end surface of the first housing 10. On the inner periphery of the rear end portion of the first large-diameter accommodating portion 16, a pair of left-right symmetrical first retaining projections 18 whose upper surface protrudes radially inward is formed.

フロントホルダ１９は、合成樹脂製であり、全体として板厚方向を前後方向に向けた平板状をなす。フロントホルダ１９の左右両側縁部には、左右一対の係止突起２０が形成されている。フロントホルダ１９は、第１ハウジング１０の下方から収容凹部１１内に取り付けられている。取り付けに際しては、フロントホルダ１９の左右両側縁部をガイド溝１２に嵌合し、フロントホルダ１９をスライドさせて収容凹部１１に収容する。正規の位置に収容されると、係止突起２０が係止孔１３に嵌合して係止することにより、フロントホルダ１９は第１ハウジング１０の前面部に位置決めされた状態で保持される。   The front holder 19 is made of a synthetic resin and has a flat plate shape with the plate thickness direction directed in the front-rear direction as a whole. A pair of left and right locking projections 20 are formed on the left and right side edges of the front holder 19. The front holder 19 is mounted in the receiving recess 11 from below the first housing 10. At the time of attachment, the left and right side edges of the front holder 19 are fitted into the guide groove 12, and the front holder 19 is slid to be accommodated in the accommodating recess 11. When housed in the proper position, the locking projection 20 is engaged with and locked in the locking hole 13, whereby the front holder 19 is held in a state of being positioned on the front surface portion of the first housing 10.

フロントホルダ１９の後面には、左右方向に長い３本の保持溝２１が、上下３段に分かれて並列するように形成されている。上中下の各段の保持溝２１は、夫々、上中下の各段の第１端子収容室１４と対応する高さに配されている。フロントホルダ１９には、複数の第１端子収容室１４と個別に対応する複数の貫通孔２２が形成されている。複数の貫通孔２２は、上中下の３段に分かれ、上中下のうち対応する保持溝２１に配されている。各貫通孔２２は、フロントホルダ１９を前後方向に貫通している。貫通孔２２の開口形状（断面形状）は円形であり、貫通孔２２の内径は、第１小径収容部１５の内径と同じか、それよりも僅かに小さい寸法である。   On the rear surface of the front holder 19, three holding grooves 21 that are long in the left-right direction are formed so as to be divided into three upper and lower stages and arranged in parallel. The holding grooves 21 in the upper, middle, and lower stages are respectively disposed at heights corresponding to the first terminal accommodating chambers 14 in the upper, middle, and lower stages. The front holder 19 is formed with a plurality of through holes 22 individually corresponding to the plurality of first terminal accommodating chambers 14. The plurality of through holes 22 are divided into upper, middle, and lower three stages, and are arranged in the corresponding holding grooves 21 among the upper, middle, and lower. Each through hole 22 penetrates the front holder 19 in the front-rear direction. The opening shape (cross-sectional shape) of the through hole 22 is circular, and the inner diameter of the through hole 22 is the same as or slightly smaller than the inner diameter of the first small diameter accommodating portion 15.

弾性導電部材２３は、シリコンゴム等の弾性変形が可能な弾性体２４と、弾性体２４内に埋設した複数本の導体２５とを一体化した単一部材である。弾性導電部材２３及び弾性体２４は、左右方向に細長い角柱状をなしており、フロントホルダ１９の保持溝２１内に収容され位置決め状態で嵌合している。導体２５は、細長い金属線材からなり、長さ方向と交差する方向へ自在に湾曲変形し得る可撓性を有している。導体２５の材料としては、金メッキ処理を施した真鍮等を用いることができる。   The elastic conductive member 23 is a single member in which an elastic body 24 that can be elastically deformed, such as silicon rubber, and a plurality of conductors 25 embedded in the elastic body 24 are integrated. The elastic conductive member 23 and the elastic body 24 have a rectangular column shape elongated in the left-right direction, are accommodated in the holding groove 21 of the front holder 19 and are fitted in a positioned state. The conductor 25 is made of an elongated metal wire, and has flexibility that can be freely curved and deformed in a direction intersecting the length direction. As a material of the conductor 25, brass or the like subjected to gold plating can be used.

導体２５は前後方向（両ハウジング１０，４０の嵌合方向と平行な方向）に直線状に延びた向きで弾性体２４内に埋設されている。弾性導電部材２３を前面及び後面から視ると、複数の導体２５が上下左右に所定ピッチで間隔を空けて配置されている。隣り合う導体２５のピッチは、後述する端子金具２６の筒状接続部２７の最小外径よりも小さい寸法に設定されている。導体２５の前端部は、弾性体２４の前面において僅かに突出した状態で露出している。１つの貫通孔２２には、複数本の導体２５の前端部が配されている。導体２５の後端部は、弾性体２４の後面において僅かに突出した状態で露出している。弾性体２４が弾性変形すると、導体２５は断線することなく弾性体２４に追従して変形するようになっている。   The conductor 25 is embedded in the elastic body 24 in a direction extending linearly in the front-rear direction (a direction parallel to the fitting direction of the housings 10 and 40). When the elastic conductive member 23 is viewed from the front surface and the rear surface, the plurality of conductors 25 are arranged at predetermined pitches in the vertical and horizontal directions. The pitch between the adjacent conductors 25 is set to be smaller than the minimum outer diameter of a cylindrical connection portion 27 of a terminal fitting 26 described later. The front end portion of the conductor 25 is exposed in a slightly protruding state on the front surface of the elastic body 24. A front end portion of a plurality of conductors 25 is disposed in one through hole 22. The rear end portion of the conductor 25 is exposed in a slightly protruding state on the rear surface of the elastic body 24. When the elastic body 24 is elastically deformed, the conductor 25 is deformed following the elastic body 24 without being disconnected.

端子金具２６は、金属製の筒状部材にプレス加工やカシメ付け加工等を施すことで、全体として軸線を前後方向に向けた略円筒形に成形されたものである。端子金具２６を成形する過程では、端子金具２６が被覆電線３４の前端部に導通可能に固着されている。被覆電線３４は導電性を有する芯線３５を絶縁被覆３６で包囲した周知形態のものである。被覆電線３４の前端部においては、絶縁被覆３６の前端部が除去されて芯線３５の前端部が露出した状態となっている。被覆電線３４の前端部に端子金具２６を接続することで、端子付き導電路３７が構成されている。   The terminal fitting 26 is formed into a substantially cylindrical shape having an axial line in the front-rear direction as a whole by subjecting a metal cylindrical member to press working, caulking, or the like. In the process of forming the terminal fitting 26, the terminal fitting 26 is fixed to the front end portion of the covered electric wire 34 so as to be conductive. The covered electric wire 34 has a well-known form in which a conductive core wire 35 is surrounded by an insulating coating 36. At the front end portion of the covered electric wire 34, the front end portion of the insulating coating 36 is removed and the front end portion of the core wire 35 is exposed. By connecting the terminal fitting 26 to the front end portion of the covered electric wire 34, a conductive path 37 with a terminal is configured.

端子金具２６は、その前端側領域を構成する筒状接続部２７と、後端側領域を構成する被覆包囲部３０とから構成され、全体として概ね円筒状をなす単一部材である。筒状接続部２７の最大外径は、第１小径収容部１５の内径と同じか、それよりも僅かに小さい寸法である。筒状接続部２７の最前端部には、前方に向かって縮径した形態のテーパ状接触部２８が形成されている。筒状接続部２７のうちテーパ状接触部２８より後方の長い領域には、縮径するようにカシメ変形させた芯線３５締付部２９が形成されている。   The terminal fitting 26 is composed of a cylindrical connecting portion 27 constituting a front end side region thereof and a covering surrounding portion 30 constituting a rear end side region, and is a single member having a substantially cylindrical shape as a whole. The maximum outer diameter of the cylindrical connecting portion 27 is the same as or slightly smaller than the inner diameter of the first small diameter accommodating portion 15. A tapered contact portion 28 having a diameter reduced toward the front is formed at the foremost end portion of the cylindrical connection portion 27. A core wire 35 tightening portion 29 that is caulked and deformed to reduce the diameter is formed in a long region behind the tapered contact portion 28 in the cylindrical connection portion 27.

被覆包囲部３０は、筒状接続部２７の後端に同軸状に連なっている。被覆包囲部３０の最小外径は筒状接続部２７の最大外径よりも大きい寸法とされている。被覆包囲部３０のうち前端側領域は、被覆締付部３１となっている。被覆包囲部３０のうち被覆締付部３１より方向の領域には、左右対称な一対のスリット３２が形成されている。スリット３２は、端子金具２６（被覆包囲部３０）の後端から前方へ軸線方向に延びるように切欠された形態である。   The covering surrounding portion 30 is coaxially connected to the rear end of the cylindrical connecting portion 27. The minimum outer diameter of the covering surrounding portion 30 is larger than the maximum outer diameter of the cylindrical connecting portion 27. A front end side region of the covering enclosure 30 is a covering fastening portion 31. A pair of symmetrical slits 32 are formed in a region of the coating surrounding portion 30 in a direction from the coating fastening portion 31. The slit 32 has a shape that is cut out so as to extend in the axial direction from the rear end of the terminal fitting 26 (covering enclosure 30).

被覆包囲部３０のうち被覆締付部３１より方向の領域には、上下対称な一対の抜止め部３３が形成されている。一対の抜止め部３３は、後方へ片持ち状に延出した形態であり、後方に向かって径方向外方（上方又は下方）へ僅かに拡がっている。つまり、抜止め部３３は、端子金具２６の軸線に対して斜めをなしている。抜止め部３３は、その前端部を支点として上下方向に弾性変形し得るようになっている。被覆包囲部３０のうち被覆締付部３１より後方の領域は、一対のスリット３２と一対の抜止め部３３が周方向に交互に配された形態となっている。   A pair of vertically detachable retaining portions 33 is formed in the region surrounding the covering fastening portion 31 in the covering surrounding portion 30. The pair of retaining portions 33 are in a cantilever shape extending rearward, and slightly expand outward (upward or downward) in the radial direction toward the rear. That is, the retaining portion 33 is inclined with respect to the axis of the terminal fitting 26. The retaining portion 33 can be elastically deformed in the vertical direction with the front end portion as a fulcrum. The region behind the covering fastening portion 31 in the covering surrounding portion 30 has a form in which a pair of slits 32 and a pair of retaining portions 33 are alternately arranged in the circumferential direction.

被覆包囲部３０のうち被覆締付部３１、スリット３２及び抜止め部３３の形成されていない領域の外径は、第１大径収容部１６の左右寸法と同じか、それよりも僅かに小さい寸法に設定されている。また、被覆包囲部３０の最大上下寸法（一対の抜止め部３３の後端同士の距離）は、第１大径収容部１６の上下寸法より大きい寸法に設定されている。   The outer diameter of the region surrounding the covering surrounding portion 30 where the covering fastening portion 31, the slit 32, and the retaining portion 33 are not formed is the same as or slightly smaller than the left and right dimensions of the first large-diameter receiving portion 16. Set to dimensions. The maximum vertical dimension of the covering enclosure 30 (the distance between the rear ends of the pair of retaining portions 33) is set to be larger than the vertical dimension of the first large-diameter accommodating portion 16.

次に、端子付き導電路３７の製造方法を説明する。この製造方法は、電線挿入工程と縮径工程と締付工程が実行される。電線挿入工程では、端子金具２６の成形素材３８に被覆電線３４の前端部が挿入される。成形素材３８は、図１９に示すように、全体として円筒形をなす。成形素材３８の後端部には、成形素材３８の後端縁から前方へ軸線と平行に切欠した形態の左右一対のスリット３２が形成されている。軸線方向におけるスリット３２形成領域は、成形素材３８の全長の概ね１／４に亘る範囲である。   Next, a method for manufacturing the conductive path 37 with terminals will be described. In this manufacturing method, an electric wire insertion process, a diameter reduction process, and a tightening process are executed. In the electric wire insertion process, the front end portion of the covered electric wire 34 is inserted into the molding material 38 of the terminal fitting 26. As shown in FIG. 19, the molding material 38 has a cylindrical shape as a whole. A pair of left and right slits 32 are formed at the rear end portion of the molding material 38 so as to be cut forward from the rear edge of the molding material 38 in parallel with the axis. The slit 32 formation region in the axial direction is a range over approximately ¼ of the entire length of the molding material 38.

電線挿入工程では、成形素材３８に後方から被覆電線３４の前端部が挿入される。被覆電線３４を挿入した状態では、芯線３５のうち絶縁被覆３６が除去されて露出している領域が、成形素材３８の概ね前端側領域内に収容される。詳細には、芯線３５の露出領域の前端は、縮径工程で形成される筒状接続部２７の前端（テーパ状接触部２８）より少し後方に位置する。芯線３５の露出領域の後端（絶縁被覆３６の前端）は、筒状接続部２７の後端より少し後方に位置する。したがって、筒状接続部２７には、芯線３５のうち絶縁被覆３６が除去された露出領域のみが収容される。筒状接続部２７が形成される前の状態の成形素材３８の内径は、芯線３５の外径より大きい。縮径工程で形成される被覆包囲部３０内には、芯線３５の露出領域の後端部と、絶縁被覆３６の前端部とが収容される。絶縁被覆３６の外径は被覆包囲部３０の内径と同じか、それよりも僅かに小さい寸法である。   In the electric wire insertion step, the front end portion of the covered electric wire 34 is inserted into the molding material 38 from behind. In the state where the covered electric wire 34 is inserted, the region of the core wire 35 where the insulating coating 36 is removed and exposed is accommodated in the front end region of the molding material 38. Specifically, the front end of the exposed region of the core wire 35 is located slightly behind the front end (tapered contact portion 28) of the cylindrical connecting portion 27 formed in the diameter reducing step. The rear end of the exposed region of the core wire 35 (the front end of the insulating coating 36) is located slightly behind the rear end of the cylindrical connecting portion 27. Accordingly, only the exposed region of the core wire 35 from which the insulating coating 36 is removed is accommodated in the cylindrical connecting portion 27. The inner diameter of the molding material 38 in a state before the cylindrical connection portion 27 is formed is larger than the outer diameter of the core wire 35. A rear end portion of the exposed region of the core wire 35 and a front end portion of the insulating coating 36 are accommodated in the coating surrounding portion 30 formed in the diameter reducing step. The outer diameter of the insulating coating 36 is the same as or slightly smaller than the inner diameter of the coating surrounding portion 30.

電線挿入工程の後、成形素材３８に対して縮径工程が実行される。縮径工程では、成形素材３８の概ね前端側領域が縮径変形するように塑性変形させられる。この縮径工程により、筒状接続部２７とテーパ状接触部２８が成形されると同時に、筒状接続部２７が芯線３５の露出領域の外周にカシメ付けられる。この縮径工程では、筒状接続部２７のうちテーパ状接触部２８の後端より少し後方の位置と筒状接続部２７の後端より少し前方の位置との間の領域が、更に縮径するように塑性変形させられ、芯線３５締付部２９が形成される。芯線３５締付部２９は、芯線３５の外周に対し更に強くカシメ付けられる。これにより、筒状接続部２７（成形素材３８）と芯線３５とが導通可能に且つ軸線方向及び周方向への相対変位を規制された状態に固着される。   After the electric wire insertion process, a diameter reducing process is performed on the molding material 38. In the diameter reduction process, the front end side region of the molding material 38 is plastically deformed so as to undergo diameter reduction deformation. By this diameter reducing step, the cylindrical connecting portion 27 and the tapered contact portion 28 are formed, and at the same time, the cylindrical connecting portion 27 is crimped to the outer periphery of the exposed region of the core wire 35. In this diameter reducing step, the region between the position slightly behind the rear end of the tapered contact portion 28 and the position slightly ahead of the rear end of the cylindrical connecting portion 27 in the cylindrical connecting portion 27 is further reduced in diameter. Thus, the core wire 35 tightening portion 29 is formed by plastic deformation. The core wire 35 tightening portion 29 is further strongly crimped to the outer periphery of the core wire 35. Thereby, the cylindrical connection part 27 (molding material 38) and the core wire 35 are fixed in a state in which conduction is possible and relative displacement in the axial direction and the circumferential direction is restricted.

縮径工程の後、成形素材３８に対して締付工程が実行される。締付工程では、被覆包囲部３０の一部が縮径変形させられることで、被覆締付部３１が形成される。被覆締付部３１の形成領域は、被覆包囲部３０の前端より少し後方の位置から、スリット３２の前端より少し前方の位置に至る範囲である。被覆締付部３１は、被覆電線３４のうち絶縁被覆３６の前端部の外周に対し強くカシメ付けられる。これにより、被覆締付部３１（成形素材３８）と絶縁被覆３６とが軸線方向及び周方向への相対変位を規制された状態に固着される。   After the diameter reducing process, a clamping process is performed on the molding material 38. In the tightening step, the cover tightening portion 31 is formed by reducing the diameter of a portion of the cover surrounding portion 30. The region where the covering fastening portion 31 is formed is a range from a position slightly behind the front end of the covering surrounding portion 30 to a position slightly ahead of the front end of the slit 32. The covering tightening portion 31 is strongly caulked to the outer periphery of the front end portion of the insulating covering 36 in the covered electric wire 34. Thereby, the covering tightening portion 31 (molding material 38) and the insulating covering 36 are fixed in a state in which relative displacement in the axial direction and the circumferential direction is restricted.

また、被覆包囲部３０に被覆締付部３１を形成すると同時に、上下一対の抜止め部３３が形成される。被覆締付部３１を形成する前の状態では、成形素材３８のうち前後方向においてスリット３２と対応する領域は、成形素材３８の軸線と概ね平行をなす。被覆締付部３１の形成領域は、スリット３２より前方であり且つスリット３２の前端の近傍なので、被覆包囲部３０のうち被覆締付部３１の形成領域を縮径変形させると、被覆包囲部３０のうち被覆締付部３１より後方の領域が縮径方向と反対側、即ち、径方向外方（上下方向）へ変形する。これにより、後方に向かって径方向外方へ拡がるように傾斜した上下一対の抜止め部３３が形成される。以上により、端子金具２６の成形が完了すると同時に、端子金具２６と被覆電線３４の接続が完了し、端子付き導電路３７が製造される。   Further, simultaneously with the formation of the covering fastening portion 31 in the covering surrounding portion 30, a pair of upper and lower retaining portions 33 are formed. In a state before forming the covering fastening portion 31, a region of the molding material 38 corresponding to the slit 32 in the front-rear direction is substantially parallel to the axis of the molding material 38. Since the formation region of the covering tightening portion 31 is in front of the slit 32 and in the vicinity of the front end of the slit 32, if the forming region of the covering tightening portion 31 in the covering surrounding portion 30 is deformed to a reduced diameter, the covering surrounding portion 30 is formed. Of these, the area behind the covering fastening portion 31 is deformed to the opposite side to the diameter reducing direction, that is, radially outward (vertical direction). Accordingly, a pair of upper and lower retaining portions 33 that are inclined so as to expand radially outward toward the rear are formed. As described above, at the same time as the molding of the terminal fitting 26 is completed, the connection between the terminal fitting 26 and the covered electric wire 34 is completed, and the conductive path 37 with a terminal is manufactured.

端子付き導電路３７の前端部（端子金具２６）は、第１ハウジング１０の後方から第１端子収容室１４に挿入される。挿入過程の終盤では上下両抜止め部３３が径方向内方へ弾性変形させられる。端子金具２６が第１端子収容室１４の正規位置まで挿入されると、被覆包囲部３０の前端部が前止まり部に当接することにより、端子金具２６のそれ以上の挿入動作が規制される。これと同時に、上側の抜止め部３３が、第１抜止め突起１８を通過し終わって上方へ弾性復帰し、左右一対の抜止め部３３に係止する。この係止により、端子金具２６は抜止め状態に保持される。   A front end portion (terminal fitting 26) of the conductive path 37 with a terminal is inserted into the first terminal accommodating chamber 14 from the rear of the first housing 10. In the final stage of the insertion process, the upper and lower retaining portions 33 are elastically deformed radially inward. When the terminal fitting 26 is inserted to the normal position of the first terminal accommodating chamber 14, the front end portion of the covering enclosure 30 abuts against the front stop portion, thereby restricting further insertion operation of the terminal fitting 26. At the same time, the upper retaining portion 33 finishes passing through the first retaining projection 18 and elastically returns upward, and is locked to the pair of left and right retaining portions 33. Due to this locking, the terminal fitting 26 is held in a retaining state.

第１端子収容室１４に端子金具２６が正規挿入された状態では、端子金具２６のテーパ状接触部２８が、弾性導電部材２３の後面に食い込むように当接し、弾性体２４の後面に露出する複数本の導体２５の後端部と導通可能に接触する。このとき、弾性体２４が弾性変形するのに伴って導体２５も変形するが、複数本の導体２５は弾性体２４の内部で互いに間隔を空けて個別に埋設されているので、導体２５は変形しても他の導体２５と接触することはない。したがって、隣り合う端子金具２６間が短絡することはない。   In a state where the terminal fitting 26 is normally inserted into the first terminal accommodating chamber 14, the tapered contact portion 28 of the terminal fitting 26 comes into contact with the rear surface of the elastic conductive member 23 and is exposed on the rear surface of the elastic body 24. The rear ends of the plurality of conductors 25 are in contact with each other so as to be conductive. At this time, the conductor 25 is also deformed as the elastic body 24 is elastically deformed. However, since the plurality of conductors 25 are individually embedded in the elastic body 24 at intervals, the conductor 25 is deformed. However, it does not come into contact with other conductors 25. Therefore, there is no short circuit between adjacent terminal fittings 26.

抜止め状態の端子金具２６を第１端子収容室１４から抜き取る際には、左右両第１抜止め突起１８の間に治具（図示省略）を差し込んで上側の抜止め部３３を下方へ変位させる。これにより、抜止め部３３と第１抜止め突起１８との係止状態が解除されるので、被覆電線３４を摘んで端子付き導電路３７を後方へ引っ張ればよい。   When the terminal fitting 26 in the retaining state is removed from the first terminal accommodating chamber 14, a jig (not shown) is inserted between the left and right first retaining protrusions 18 and the upper retaining portion 33 is displaced downward. Let As a result, the locked state between the retaining portion 33 and the first retaining protrusion 18 is released, and the covered electric wire 34 may be picked and the terminal-equipped conductive path 37 may be pulled rearward.

雄側コネクタＭは、合成樹脂製の第２ハウジング４０と、複数の端子金具２６（請求項に記載の第２端子金具）とを備えて構成されている。雄側コネクタＭを構成する端子金具２６は、雌側コネクタＦを構成する端子金具２６と同一部材である。したがって、詳細な説明は省略する。   The male connector M includes a second housing 40 made of synthetic resin and a plurality of terminal fittings 26 (second terminal fittings described in claims). The terminal fittings 26 constituting the male connector M are the same members as the terminal fittings 26 constituting the female connector F. Therefore, detailed description is omitted.

第２ハウジング４０は、端子金具２６を収容するハウジング本体部４１と、ハウジング本体部４１から前方へ角筒状に延出したフード部４２とを有する単一部材である。ハウジング本体部４１内には、前後方向に細長い複数の第２端子収容室４３が、複数の第１端子収容室１４と個別に対向するように形成されている。即ち、複数の第２端子収容室４３は、上下３段に分かれて配され、上中下の各段において左右方向に一定ピッチで並列して配置されている。各第２端子収容室４３の前端側領域は、前後方向に細長い第２小径収容部４４となっている。第２小径収容部４４の軸線と直角に切断したときの断面形状は、円形である。第２小径収容部４４の前端はハウジング本体部４１の前面に開口している。   The second housing 40 is a single member having a housing main body 41 that accommodates the terminal fitting 26 and a hood 42 that extends forward from the housing main body 41 in a rectangular tube shape. A plurality of second terminal accommodation chambers 43 elongated in the front-rear direction are formed in the housing main body 41 so as to individually face the plurality of first terminal accommodation chambers 14. That is, the plurality of second terminal accommodating chambers 43 are arranged in three upper and lower stages, and are arranged in parallel at a constant pitch in the left-right direction in each of the upper, middle, and lower stages. A front end side region of each second terminal accommodating chamber 43 is a second small diameter accommodating portion 44 that is elongated in the front-rear direction. The cross-sectional shape when cut at right angles to the axis of the second small diameter accommodating portion 44 is a circle. The front end of the second small diameter accommodating portion 44 opens to the front surface of the housing main body 41.

各第２端子収容室４３の後端側領域は、第２小径収容部４４の後端に同軸状に連なった第２大径収容部４５となっている。第２大径収容部４５の軸線と直角に切断したときの断面形状は、概ね円形であり、詳細には上下寸法が左右寸法より僅かに大きい長円形をなしている。第２大径収容部４５の左右寸法は第２小径収容部４４の内径よりも大きく、この寸法差により、第２大径収容部４５の前端部には第２前止まり部４６が形成されている。第２大径収容部４５の後端は、第２ハウジング４０の後端面に開口している。第２大径収容部４５の後端部内周には、その上面部を径方向内側へ突出させた形態の左右対称な一対の第２抜止め突起４７が形成されている。   The rear end region of each second terminal accommodating chamber 43 is a second large diameter accommodating portion 45 that is coaxially connected to the rear end of the second small diameter accommodating portion 44. The cross-sectional shape when cut at right angles to the axis of the second large-diameter accommodating portion 45 is generally circular, and specifically, an oval shape whose vertical dimension is slightly larger than the horizontal dimension. The left and right dimensions of the second large-diameter accommodating portion 45 are larger than the inner diameter of the second small-diameter accommodating portion 44, and due to this dimensional difference, a second front stop 46 is formed at the front end of the second large-diameter accommodating portion 45. Yes. The rear end of the second large-diameter accommodating portion 45 opens to the rear end surface of the second housing 40. On the inner periphery of the rear end portion of the second large-diameter accommodating portion 45, a pair of left-right symmetrical second retaining projections 47 whose upper surface protrudes radially inward is formed.

雌側コネクタＦと雄側コネクタＭを嵌合する際には、第１ハウジング１０と第２ハウジング４０をその前面同士が対向するように接近させ、第１ハウジング１０を第２ハウジング４０のフード部４２内に嵌入する。両ハウジング１０，４０が正規嵌合すると、第２ハウジング４０に取り付けられている。端子金具２６のテーパ状接触部２８が、フロントホルダ１９の貫通孔２２に収容され、弾性導電部材２３の前端面に対して食い込むように当接し、弾性体２４の前面面に露出する複数本の導体２５の前端部と導通可能に接触する。   When fitting the female connector F and the male connector M, the first housing 10 and the second housing 40 are brought close to each other so that the front surfaces thereof face each other, and the first housing 10 is moved to the hood portion of the second housing 40. Fit into 42. When the two housings 10 and 40 are properly fitted, they are attached to the second housing 40. The tapered contact portion 28 of the terminal fitting 26 is accommodated in the through hole 22 of the front holder 19, abuts against the front end surface of the elastic conductive member 23, and is exposed to the front surface of the elastic body 24. It contacts the front end of the conductor 25 so as to be conductive.

このとき、弾性体２４が弾性変形するのに伴って導体２５も変形するが、複数本の導体２５は弾性体２４の内部で互いに間隔を空けて個別に埋設されているので、導体２５は変形しても他の導体２５と接触することはない。したがって、第２ハウジング４０において隣り合う端子金具２６間が短絡することはない。   At this time, the conductor 25 is also deformed as the elastic body 24 is elastically deformed. However, since the plurality of conductors 25 are individually embedded in the elastic body 24 at intervals, the conductor 25 is deformed. However, it does not come into contact with other conductors 25. Accordingly, the adjacent terminal fittings 26 in the second housing 40 are not short-circuited.

両ハウジング１０，４０が嵌合すると、第１ハウジング１０に取り付けられている複数の端子金具２６と、第２ハウジング４０に取り付けられている複数の端子金具２６とが、弾性導電部材２３の導体２５を介すことにより個別に導通可能に接続される。このとき、弾性導電部材２３は、第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６との間で、両ハウジング１０，４０の嵌合方向と平行に挟み付けられる。つまり、第１ハウジング１０の端子金具２６と弾性導電部材２３と第２ハウジング４０の端子金具２６が、両ハウジング１０，４０の嵌合方向と平行に並んだ状態となる。   When the two housings 10 and 40 are fitted, the plurality of terminal fittings 26 attached to the first housing 10 and the plurality of terminal fittings 26 attached to the second housing 40 are connected to the conductor 25 of the elastic conductive member 23. Are connected individually so as to be able to conduct. At this time, the elastic conductive member 23 is sandwiched between the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 in parallel with the fitting direction of the two housings 10, 40. That is, the terminal fitting 26 of the first housing 10, the elastic conductive member 23, and the terminal fitting 26 of the second housing 40 are arranged in parallel with the fitting direction of both the housings 10 and 40.

第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６を導通させる導体２５は、両端子金具２６の食い込みによって弾性変形する弾性体２４の内部に埋設されているので、弾性体２４の弾性復元力により、導体２５の後端部は第１ハウジング１０の端子金具２６に対して弾性的に当接するとともに、導体２５の前端部は第２ハウジング４０の端子金具２６に対して弾性的に当接する。これにより、第１ハウジング１０の端子金具２６と導体２５と第２ハウジング４０の端子金具２６は、所定の接触圧で接触するので、信頼性の高い接続状態が得られる。   Since the conductor 25 for conducting the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 is embedded in the elastic body 24 that is elastically deformed by the biting of the both terminal fittings 26, Due to the elastic restoring force, the rear end portion of the conductor 25 elastically contacts the terminal fitting 26 of the first housing 10, and the front end portion of the conductor 25 elastically contacts the terminal fitting 26 of the second housing 40. Abut. Thereby, since the terminal metal fitting 26 of the 1st housing 10, the conductor 25, and the terminal metal fitting 26 of the 2nd housing 40 contact with predetermined contact pressure, a reliable connection state is obtained.

本実施例１のコネクタは、第１ハウジング１０と、第１ハウジング１０と嵌合可能な第２ハウジング４０と、第１ハウジング１０及び第２ハウジング４０に取り付けた端子金具２６と、弾性導電部材２３とを備えている。弾性導電部材２３は、第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６との間で、両ハウジング１０，４０の嵌合方向と略平行に挟まれている。両ハウジング１０，４０を嵌合すると、第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６は弾性導電部材２３を介して導通可能に接続される。第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６は、一方の端子金具２６を他方の端子金具２６の内部に挿入する接続形態とはならない。したがって、本実施例１のコネクタは、両ハウジング１０，４０の嵌合方向と交差する方向（上下方向又は左右方向）の寸法を小さくできる。   The connector according to the first embodiment includes a first housing 10, a second housing 40 that can be fitted to the first housing 10, a terminal fitting 26 attached to the first housing 10 and the second housing 40, and an elastic conductive member 23. And. The elastic conductive member 23 is sandwiched between the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 in substantially parallel to the fitting direction of the two housings 10 and 40. When the two housings 10 and 40 are fitted, the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 are connected through the elastic conductive member 23 so as to be conductive. The terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 do not have a connection configuration in which one terminal fitting 26 is inserted into the other terminal fitting 26. Therefore, the connector of the first embodiment can reduce the dimension in the direction (vertical direction or horizontal direction) that intersects the fitting direction of both housings 10 and 40.

また、弾性導電部材２３は、第２ハウジング４０と対向するような形態で第１ハウジング１０に保持されているので、弾性導電部材２３を第１ハウジング１０と一体的に取り扱うことができる。したがって、弾性導電部材２３と第１ハウジング１０を取り扱う場合や、両ハウジング１０，４０を嵌合する際の作業が容易である。また、弾性導電部材２３は、可撓性を有する導体２５を弾性体２４内に埋設した形態なので、導体２５が剥き出しにならない。したがって、他部材の干渉に起因して導体２５が破損したりすることを防止できる。   Further, since the elastic conductive member 23 is held by the first housing 10 so as to face the second housing 40, the elastic conductive member 23 can be handled integrally with the first housing 10. Therefore, when the elastic conductive member 23 and the first housing 10 are handled or when both the housings 10 and 40 are fitted, the work is easy. Further, since the elastic conductive member 23 is a form in which the flexible conductor 25 is embedded in the elastic body 24, the conductor 25 is not exposed. Therefore, the conductor 25 can be prevented from being damaged due to the interference of other members.

また、第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６が複数ずつ左右方向に並列配置されているで、弾性体２４（弾性導電部材２３）を、第１ハウジング１０の端子金具２６及び第２ハウジング４０の端子金具２６の並列方向に長い形状とし、複数の導体２５を、第１ハウジング１０の端子金具２６及び第２ハウジング４０の端子金具２６と対応して並ぶように配した。この構成によれば、１つの弾性導電部材２３によって第１ハウジング１０の複数の端子金具２６と第２ハウジング４０の複数の端子金具２６とを個別に導通させることができる。また、第１ハウジング１０に取り付けられる端子金具２６と第２ハウジング４０に取り付けられる端子金具２６を、同一形状としたので、部品の種類数が削減されている。   The plurality of terminal fittings 26 of the first housing 10 and the plurality of terminal fittings 26 of the second housing 40 are arranged in parallel in the left-right direction, so that the elastic body 24 (elastic conductive member 23) is connected to the terminal fitting of the first housing 10. 26 and the terminal fitting 26 of the second housing 40 are long in the parallel direction, and a plurality of conductors 25 are arranged so as to correspond to the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40. . According to this configuration, the plurality of terminal fittings 26 of the first housing 10 and the plurality of terminal fittings 26 of the second housing 40 can be individually conducted by one elastic conductive member 23. Further, since the terminal fitting 26 attached to the first housing 10 and the terminal fitting 26 attached to the second housing 40 have the same shape, the number of types of parts is reduced.

また、端子金具２６は、芯線３５を絶縁被覆３６で包囲した被覆電線３４の前端部に接続されており、端子金具２６には、芯線３５を締付け状態で包囲し、外面が弾性導電部材２３との接続手段として機能する筒状接続部２７が形成されている。この構成によれば、筒状接続部２７が、芯線３５に固着する機能と、弾性導電部材２３に接続する機能とを兼ね備えているので、端子金具２６の形状の簡素化が実現されている。   The terminal fitting 26 is connected to the front end portion of the covered electric wire 34 in which the core wire 35 is surrounded by the insulation coating 36. The terminal fitting 26 surrounds the core wire 35 in a tightened state, and the outer surface is connected to the elastic conductive member 23. A cylindrical connecting portion 27 that functions as a connecting means is formed. According to this structure, since the cylindrical connection part 27 has the function to adhere to the core wire 35, and the function to connect to the elastic conductive member 23, simplification of the shape of the terminal metal fitting 26 is implement | achieved.

また、本実施例１の端子付き導電路３７は、芯線３５を絶縁被覆３６で包囲した被覆電線３４と、被覆電線３４の前端部に接続された端子金具２６とを備えている。端子金具２６は、芯線３５を締付け状態で包囲する筒状接続部２７を有している。第１ハウジング１０の端子金具２６の筒状接続部２７は、そのテーパ状接触部２８の外面が、弾性導電部材２３を介して第２ハウジング４０の端子金具２６と接続するための手段として機能する。第２ハウジング４０の端子金具２６の筒状接続部２７は、そのテーパ状接触部２８の外面が、弾性導電部材２３を介して第１ハウジング１０の端子金具２６と接続するための手段として機能する。筒状接続部２７は２つの機能を兼ね備えているので、２つの機能を別々に形成する場合に比べると、本実施例の端子金具２６は、形状を簡素化することが可能となっている。   The conductive path 37 with a terminal according to the first embodiment includes a covered electric wire 34 that surrounds the core wire 35 with an insulating coating 36, and a terminal fitting 26 that is connected to the front end of the covered electric wire 34. The terminal fitting 26 has a cylindrical connecting portion 27 that surrounds the core wire 35 in a tightened state. The cylindrical connecting portion 27 of the terminal fitting 26 of the first housing 10 functions as a means for connecting the outer surface of the tapered contact portion 28 to the terminal fitting 26 of the second housing 40 via the elastic conductive member 23. . The cylindrical connecting portion 27 of the terminal fitting 26 of the second housing 40 functions as a means for connecting the outer surface of the tapered contact portion 28 to the terminal fitting 26 of the first housing 10 via the elastic conductive member 23. . Since the cylindrical connecting portion 27 has two functions, the shape of the terminal fitting 26 of this embodiment can be simplified as compared with the case where the two functions are formed separately.

また、筒状接続部２７内には、芯線３５のうち絶縁被覆３６を除去した領域のみが収容されているので、筒状接続部２７の外径を小さくすることができる。また、筒状接続部２７の後端には、被覆電線３４のうち絶縁被覆３６が芯線３５を包囲する領域を締付け状態で包囲する被覆包囲部３０が連なっている。この構成によれば、被覆電線３４と端子金具２６が、筒状接続部２７と被覆包囲部３０の両方において締付け状態で固着されるので、被覆電線３４と端子金具２６との固着強度が高い。   Moreover, since only the area | region which removed the insulation coating 36 among the core wires 35 is accommodated in the cylindrical connection part 27, the outer diameter of the cylindrical connection part 27 can be made small. In addition, a covering enveloping portion 30 that surrounds a region where the insulating covering 36 surrounds the core wire 35 of the covering electric wire 34 in a tightened state is connected to the rear end of the cylindrical connecting portion 27. According to this configuration, since the covered electric wire 34 and the terminal fitting 26 are fixed in a tightened state in both the cylindrical connecting portion 27 and the covered surrounding portion 30, the fixing strength between the covered electric wire 34 and the terminal fitting 26 is high.

また、被覆包囲部３０には、被覆包囲部３０の後端から軸線方向前方へ延びる一対のスリット３２と、スリット３２に沿うように後方へ片持ち状に延出し且つ後方に向かうほど径方向外方へ拡がった一対の抜止め部３３とが形成されている。この構成によれば、ハウジングに挿入した端子金具２６は、抜止め部３３をハウジングに係止させることによって抜止めされる。抜止め部３３は、スリット３２に沿うように片持ち状に延出した形態なので、形状がシンプルである。   Also, the covering enclosure 30 includes a pair of slits 32 extending axially forward from the rear end of the covering enclosure 30, and extending in a cantilevered manner along the slits 32. A pair of retaining portions 33 extending in the direction is formed. According to this configuration, the terminal fitting 26 inserted into the housing is prevented from being removed by locking the retaining portion 33 to the housing. Since the retaining portion 33 is a cantilever extending along the slit 32, the shape is simple.

また、被覆包囲部３０のうち抜止め部３３より前方の領域には、絶縁被覆３６の外周を締め付ける被覆締付部３１が形成されている。この構成によれば、被覆締付部３１を縮径変形させて絶縁被覆３６の外周を締め付け加工すると、締付け加工に伴い、抜止め部３３が後方に向かうほど径方向外方へ拡がるように変形する。したがって、絶縁被覆３６を被覆締付部３１で締め付ける加工と、抜止め部３３を径方向外方へ拡げる加工とを、１工程で行うことができる。   A covering fastening portion 31 for fastening the outer periphery of the insulating coating 36 is formed in a region of the covering surrounding portion 30 in front of the retaining portion 33. According to this configuration, when the outer diameter of the insulating coating 36 is tightened by reducing the diameter of the covering tightening portion 31, the retaining portion 33 is deformed so as to expand radially outward as it moves rearward. To do. Therefore, the process of tightening the insulating coating 36 with the cover tightening portion 31 and the process of expanding the retaining portion 33 radially outward can be performed in one step.

＜他の実施例＞
本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような実施例も本発明の技術的範囲に含まれる。
（１）上記実施例では、弾性導電部材が第１ハウジングに保持されているが、弾性導電部材は、第２ハウジングに保持される形態としてもよく、第１ハウジングと第２ハウジングのいずれにも保持されない形態としてもよい。
（２）上記実施例では、弾性導電部材が、複数の導体を１つの弾性体に埋設した形態であるが、弾性導電部材は、１つの弾性体に１つの導体を埋設した形態であってもよい。
（３）上記実施例では、弾性導電部材が、可撓性を有する導体を弾性体内に埋設した形態であるが、弾性導電部材は露出形態のバネ部材（皿バネや圧縮コイルバネ等）であってもよい。
（４）上記実施例では、第１ハウジングに取り付けた端子金具（第１端子金具）と第２ハウジングに取り付けた端子金具（第２端子金具）を同一形状のものとしたが、第１端子金具と第２端子金具は互いに異なる形状としてもよい。
（５）上記実施例では、端子金具の筒状接続部に、芯線のうち絶縁被覆が除去された領域のみを収容したが、筒状接続部に、芯線のうち絶縁被覆で包囲されていない領域と、絶縁被覆で包囲されている領域の一部を収容してもよい。
（６）上記実施例では、端子金具に被覆包囲部が形成されているが、端子金具は被覆包囲部を有しないものであってもよい。
（７）上記実施例では、抜止め部はスリットを形成することによって径方向外方へ拡開する形態となっているが、抜止め部は、スリットを形成せずに、切り起こしや叩き出し等によって形成してもよい。
（８）上記実施例では、抜止め部を被覆包囲部に形成したが、抜止め部は筒状接続部に形成してもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the elastic conductive member is held by the first housing. However, the elastic conductive member may be held by the second housing, and either the first housing or the second housing may be used. It is good also as a form which is not hold | maintained.
(2) In the above embodiment, the elastic conductive member has a form in which a plurality of conductors are embedded in one elastic body, but the elastic conductive member may have a form in which one conductor is embedded in one elastic body. Good.
(3) In the above embodiment, the elastic conductive member is a form in which a flexible conductor is embedded in the elastic body, but the elastic conductive member is an exposed spring member (such as a disc spring or a compression coil spring). Also good.
(4) In the above embodiment, the terminal fitting (first terminal fitting) attached to the first housing and the terminal fitting (second terminal fitting) attached to the second housing have the same shape. And the second terminal fitting may have different shapes.
(5) In the said Example, although only the area | region where the insulation coating was removed was accommodated in the cylindrical connection part of the terminal metal fitting, the area | region which is not enclosed by the insulation coating among the core wires in the cylindrical connection part A part of the region surrounded by the insulating coating may be accommodated.
(6) In the above embodiment, the covering enclosure is formed on the terminal fitting, but the terminal fitting may not have the covering enclosure.
(7) In the above embodiment, the retaining portion is configured to expand radially outward by forming a slit, but the retaining portion is cut and raised without forming a slit. It may be formed by, for example.
(8) In the above embodiment, the retaining portion is formed on the covering enclosure portion, but the retaining portion may be formed on the cylindrical connecting portion.

１０…第１ハウジング
２３…弾性導電部材
２４…弾性体
２５…導体
２６…端子金具（第１端子金具，第２端子金具）
２７…筒状接続部
３４…被覆電線
３５…芯線
３６…絶縁被覆
４０…第２ハウジング DESCRIPTION OF SYMBOLS 10 ... 1st housing 23 ... Elastic conductive member 24 ... Elastic body 25 ... Conductor 26 ... Terminal metal fitting (1st terminal metal fitting, 2nd terminal metal fitting)
27 ... Cylindrical connecting portion 34 ... Coated wire 35 ... Core wire 36 ... Insulation coating 40 ... Second housing

Claims (6)

第１ハウジングと、
前記第１ハウジングに取り付けた第１端子金具と、
前記第１ハウジングと嵌合可能な第２ハウジングと、
前記第２ハウジングに取り付けた第２端子金具と、
前記第１端子金具と前記第２端子金具との間で、前記第１ハウジングと前記第２ハウジングの嵌合方向と略平行に挟まれる弾性導電部材とを備えていることを特徴とするコネクタ。 A first housing;
A first terminal fitting attached to the first housing;
A second housing engageable with the first housing;
A second terminal fitting attached to the second housing;
A connector comprising: an elastic conductive member sandwiched between the first terminal metal fitting and the second terminal metal fitting in substantially parallel to the fitting direction of the first housing and the second housing. 前記弾性導電部材が前記第２ハウジングと対向するように前記第１ハウジングに保持されていることを特徴とする請求項１記載のコネクタ。   The connector according to claim 1, wherein the elastic conductive member is held by the first housing so as to face the second housing. 前記弾性導電部材は、可撓性を有する導体を弾性体内に埋設した形態であることを特徴とする請求項１又は請求項２記載のコネクタ。   3. The connector according to claim 1, wherein the elastic conductive member has a form in which a flexible conductor is embedded in an elastic body. 前記第１端子金具と前記第２端子金具が複数ずつ並列配置されており、
前記弾性体は、前記第１端子金具及び前記第２端子金具の並列方向に長い形状であり、
複数の前記導体が、複数の前記第１端子金具及び複数の前記第２端子金具と対応して並ぶように配されていることを特徴とする請求項３記載のコネクタ。 A plurality of the first terminal fittings and the second terminal fittings are arranged in parallel;
The elastic body is long in the parallel direction of the first terminal fitting and the second terminal fitting,
The connector according to claim 3, wherein the plurality of conductors are arranged so as to correspond to the plurality of first terminal fittings and the plurality of second terminal fittings. 前記第１端子金具と前記第２端子金具が同一形状であることを特徴とする請求項１ないし請求項４のいずれか１項に記載のコネクタ。   The connector according to any one of claims 1 to 4, wherein the first terminal fitting and the second terminal fitting have the same shape. 前記第１端子金具と前記第２端子金具は、芯線を絶縁被覆で包囲した被覆電線の前端部に接続されており、
前記第１端子金具及び前記第２端子金具には、前記芯線を締付け状態で包囲し、外面が前記弾性導電部材との接続手段として機能する筒状接続部が形成されていることを特徴とする請求項５記載のコネクタ。 The first terminal fitting and the second terminal fitting are connected to a front end portion of a covered electric wire in which a core wire is surrounded by an insulation coating,
The first terminal fitting and the second terminal fitting are formed with a cylindrical connection portion that surrounds the core wire in a tightened state and whose outer surface functions as a connection means with the elastic conductive member. The connector according to claim 5.
JP2017157077A 2017-08-16 2017-08-16 connector Pending JP2019036466A (en)

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