JP2021150094A - Female terminal and terminal-having electric wire - Google Patents

Female terminal and terminal-having electric wire Download PDF

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JP2021150094A
JP2021150094A JP2020047282A JP2020047282A JP2021150094A JP 2021150094 A JP2021150094 A JP 2021150094A JP 2020047282 A JP2020047282 A JP 2020047282A JP 2020047282 A JP2020047282 A JP 2020047282A JP 2021150094 A JP2021150094 A JP 2021150094A
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contact
tab portion
inserted state
tab
apex
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友彰 佐々木
Tomoaki Sasaki
友彰 佐々木
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Yazaki Corp
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Yazaki Corp
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Abstract

To provide a female terminal and a terminal-having electric wire that prevent contact sliding between male and female terminals, resulting from vehicle vibration.SOLUTION: A female terminal 1 includes a box portion 10 into which a tab portion 30 of a male terminal 2 is inserted. The box portion 10 has: an elastic contact piece 12 that is in elastic contact with the tab portion 30 at a contact portion 12a, in an inserted state of the tab portion 30; and a wall portion 13 opposite to the elastic contact piece 12, with the tab portion 30 therebetween in the inserted state. The wall portion 13 has: a pair of contact portions 14, 15 that are in contact with the tab portion 30 in the inserted state; and a recessed portion 16 formed between the contact portions 14, 15. The contact portions 14, 15 have vertices 14b, 15b that are in contact with the tab portion 30 in the inserted state. The contact portion 12a is located at a position opposite to the recessed portion 16 with the tab portion 30 interposed therebetween in the inserted state. The vertex 14b is disposed further on a side in an extraction direction than an imaginary vertex 41a in the insertion/extraction direction of the contact portion 14, and the vertex 15b is disposed further on a side in an insertion direction than an imaginary vertex 42a in the insertion/extraction direction of the contact portion 15.SELECTED DRAWING: Figure 2

Description

本発明は、雌端子及び端子付き電線に関する。 The present invention relates to a female terminal and an electric wire with a terminal.

従来、ワイヤハーネス同士の接続には、オスコネクタとメスコネクタが利用される。メスコネクタ側の雌端子とオスコネクタ側の雄端子とが嵌合することにより、ワイヤハーネス同士が電気的に接続される。雌端子には、雄端子が挿入される箱部を有し、挿入された雄端子を箱部の壁部と弾性接触片とで挟持する構造を有するものがある。この場合、雌端子の箱部内に雄端子のタブ部が挿入されると、箱部内の弾性接触片がタブ部を上下方向における上方に向けて弾性接触すると共に、箱部の壁部から下方に向けて突出して形成された複数の上方接点部がタブ部を上下方向において接触するように構成される金属端子がある（特許文献１−４参照）。 Conventionally, a male connector and a female connector are used to connect wire harnesses to each other. By fitting the female terminal on the female connector side and the male terminal on the male connector side, the wire harnesses are electrically connected to each other. Some female terminals have a box portion into which a male terminal is inserted, and have a structure in which the inserted male terminal is sandwiched between a wall portion of the box portion and an elastic contact piece. In this case, when the tab portion of the male terminal is inserted into the box portion of the female terminal, the elastic contact piece in the box portion elastically contacts the tab portion upward in the vertical direction and downward from the wall portion of the box portion. There is a metal terminal configured such that a plurality of upper contact portions formed so as to project toward each other contact the tab portion in the vertical direction (see Patent Documents 1-4).

特開２００２−６３９６１号公報JP-A-2002-63961 特開２００３−３３１９６８号公報Japanese Unexamined Patent Publication No. 2003-331968 特開２０１３−１１８１０２号公報Japanese Unexamined Patent Publication No. 2013-118102 特開２０１６−２４８９２号公報Japanese Unexamined Patent Publication No. 2016-24892

ところで、雄端子が雌端子に挿入された状態で車両振動により電線が振動すると、電線の振動が端子に伝わって雌雄端子間の接点摺動を引き起こし、ひいては接点摩耗による抵抗値の増加を招くおそれがある。 By the way, if the electric wire vibrates due to vehicle vibration while the male terminal is inserted into the female terminal, the vibration of the electric wire is transmitted to the terminal and causes contact sliding between the male and female terminals, which may lead to an increase in resistance value due to contact wear. There is.

本発明は、上記課題に鑑みて成されたものであり、車両振動による雌雄端子間の接点摺動を抑制する雌端子及び端子付き電線を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a female terminal and an electric wire with a terminal that suppress contact sliding between male and female terminals due to vehicle vibration.

上記目的を達成するために、本発明に係る雌端子は、雄端子の挿入方向と反対側に開口し、前記開口を介して前記雄端子の平板状のタブ部が挿入される箱部を備え、前記箱部は、前記開口から前記挿入方向に延在し、前記タブ部が挿入された挿入状態で前記タブ部に対して接触点で弾性接触する弾性接触片と、前記挿入状態で前記タブ部を挟んで前記弾性接触片と対向する壁部と、を有し、前記壁部は、前記箱部の挿抜方向に沿って設けられ、前記弾性接触片側に向けて突出し、かつ前記挿入状態で前記タブ部に接触する一対の接点部と、一対の前記接点部のうちの一方の第１接点部と他方の第２接点部との間に形成され、前記弾性接触片と反対側に凹む凹部と、を有し、前記第１接点部は、前記挿抜方向における抜去方向側に設けられており、前記第２接点部は、前記挿抜方向における挿入方向側に設けられており、各前記接点部は、当該接点部の突出方向及び前記挿抜方向と直交する幅方向から見た断面形状が前記弾性接触片側に向けて膨らむように湾曲した接触面と、前記接触面において前記弾性接触片側に最も突出し、かつ前記挿入状態で前記タブ部に接触する頂点と、を有し、前記接触点は、前記挿入状態で前記タブ部を挟んで前記凹部に対向する位置にあり、前記第１接点部における前記頂点は、当該第１接点部の前記挿抜方向における中心よりも抜去方向側に配置され、前記第２接点部における前記頂点は、当該第２接点部の前記挿抜方向における中心よりも挿入方向側に配置される、ことを特徴とする。 In order to achieve the above object, the female terminal according to the present invention includes a box portion that opens in the direction opposite to the insertion direction of the male terminal, and a flat tab portion of the male terminal is inserted through the opening. The box portion extends from the opening in the insertion direction, and the elastic contact piece that elastically contacts the tab portion at a contact point in the inserted state in which the tab portion is inserted and the tab in the inserted state. It has a wall portion that faces the elastic contact piece across the portion, and the wall portion is provided along the insertion / removal direction of the box portion, projects toward the elastic contact piece side, and is in the inserted state. A recess formed between a pair of contact portions in contact with the tab portion and one of the first contact portions of the pair of the contact portions and the second contact portion of the other, and recessed on the opposite side of the elastic contact piece. The first contact portion is provided on the extraction direction side in the insertion / extraction direction, and the second contact portion is provided on the insertion direction side in the insertion / extraction direction. The contact surface is curved so that the cross-sectional shape seen from the protruding direction of the contact portion and the width direction orthogonal to the insertion / extraction direction bulges toward the elastic contact one side, and the contact surface most protrudes toward the elastic contact one side. The contact point has an apex that contacts the tab portion in the inserted state, and the contact point is located at a position facing the recess with the tab portion sandwiched in the inserted state. The apex is arranged on the extraction direction side of the center of the first contact portion in the insertion / extraction direction, and the apex of the second contact portion is located on the insertion direction side of the center of the second contact portion in the insertion / extraction direction. It is characterized by being placed.

上記雌端子において、各前記接点部は、前記挿入状態で前記タブ部に点接触する、ものである。 In the female terminal, each contact portion makes point contact with the tab portion in the inserted state.

上記雌端子において、各前記接触面は、前記断面形状が、異なる曲率半径を有する複数の円弧状部分を有し、複数の前記円弧状部分は、一方の前記頂点を挟んで他方の前記頂点に向かう側の円弧状部分の曲率半径が、一方の前記頂点を挟んで他方の前記頂点とは反対側の円弧状部分の曲率半径より大きい、ものである。 In the female terminal, each of the contact surfaces has a plurality of arcuate portions having different radii of curvature, and the plurality of arcuate portions sandwich one of the apex and form the other apex. The radius of curvature of the arcuate portion on the opposite side is larger than the radius of curvature of the arcuate portion on the opposite side of the one apex to the other apex.

上記目的を達成するために、本発明に係る端子付き電線は、電線と、前記電線に設けられる雌端子とを備え、前記雌端子は、雄端子の挿入方向と反対側に開口し、前記開口を介して前記雄端子の平板状のタブ部が挿入される箱部を備え、前記箱部は、前記開口から前記挿入方向に延在し、前記タブ部が挿入された挿入状態で前記タブ部に対して接触点で弾性接触する弾性接触片と、前記挿入状態で前記タブ部を挟んで前記弾性接触片と対向する壁部と、を有し、前記壁部は、前記箱部の挿抜方向に沿って設けられ、前記弾性接触片側に向けて突出し、かつ前記挿入状態で前記タブ部に接触する一対の接点部と、一対の前記接点部のうちの一方の第１接点部と他方の第２接点部との間に形成され、前記弾性接触片と反対側に凹む凹部と、を有し、前記第１接点部は、前記挿抜方向における抜去方向側に設けられており、前記第２接点部は、前記挿抜方向における挿入方向側に設けられており、各前記接点部は、当該接点部の突出方向及び前記挿抜方向と直交する幅方向から見た断面形状が前記弾性接触片側に向けて膨らむように湾曲した接触面と、前記接触面において前記弾性接触片側に最も突出し、かつ前記挿入状態で前記タブ部に接触する頂点と、を有し、前記接触点は、前記挿入状態で前記タブ部を挟んで前記凹部に対向する位置にあり、前記第１接点部における前記頂点は、当該第１接点部の前記挿抜方向における中心よりも抜去方向側に配置され、前記第２接点部における前記頂点は、当該第２接点部の前記挿抜方向における中心よりも挿入方向側に配置される、ことを特徴とする。 In order to achieve the above object, the electric wire with a terminal according to the present invention includes an electric wire and a female terminal provided on the electric wire, and the female terminal is opened on the side opposite to the insertion direction of the male terminal. A box portion into which a flat plate-shaped tab portion of the male terminal is inserted is provided, and the box portion extends from the opening in the insertion direction, and the tab portion is inserted in the inserted state. It has an elastic contact piece that makes elastic contact with the contact point, and a wall portion that faces the elastic contact piece with the tab portion sandwiched in the inserted state, and the wall portion is in the insertion / removal direction of the box portion. A pair of contact portions that are provided along the above and project toward one side of the elastic contact and that come into contact with the tab portion in the inserted state, and one first contact portion and the other first contact portion of the pair of the contact portions. It has a recess formed between the two contact portions and recessed on the opposite side to the elastic contact piece, and the first contact portion is provided on the extraction direction side in the insertion / extraction direction, and the second contact portion. The portions are provided on the insertion direction side in the insertion / extraction direction, and each of the contact portions has a cross-sectional shape viewed from the protrusion direction of the contact portion and the width direction orthogonal to the insertion / extraction direction toward the elastic contact one side. It has a bulgingly curved contact surface and an apex that most protrudes to the elastic contact one side on the contact surface and contacts the tab portion in the inserted state, and the contact point is the tab in the inserted state. The apex of the first contact portion is located on the side of the first contact portion in the extraction direction with respect to the center of the first contact portion in the insertion / extraction direction, and is located at a position facing the recess so as to sandwich the portion. The apex is arranged on the insertion direction side with respect to the center of the second contact portion in the insertion / removal direction.

本発明に係る雌端子及び端子付き電線によれば、車両振動による雌雄端子間の接点摺動を抑制する、という効果を奏する。 According to the female terminal and the electric wire with a terminal according to the present invention, there is an effect of suppressing contact sliding between the male and female terminals due to vehicle vibration.

図１は、実施形態に係る雌端子及び端子付き電線の概略構成を示す模式図である。FIG. 1 is a schematic view showing a schematic configuration of a female terminal and an electric wire with a terminal according to an embodiment. 図２は、実施形態に係る雌端子の概略構成を示す部分断面図である。FIG. 2 is a partial cross-sectional view showing a schematic configuration of a female terminal according to an embodiment. 図３（Ａ）及び図３（Ｂ）は、実施形態に係る雌端子の各接点部の概略構成を示す断面図である。3A and 3B are cross-sectional views showing a schematic configuration of each contact portion of the female terminal according to the embodiment. 図４は、実施形態に係る雌端子の接点部の概略構成を示す斜視図である。FIG. 4 is a perspective view showing a schematic configuration of a contact portion of a female terminal according to an embodiment. 図５は、実施形態の変形例に係る雌端子の接点部の概略構成を示す斜視図である。FIG. 5 is a perspective view showing a schematic configuration of a contact portion of a female terminal according to a modified example of the embodiment.

以下に、本発明に係る雌端子及び端子付き電線の実施形態について図面を参照しつつ詳細に説明する。なお、下記の実施形態により本発明が限定されるものではない。また、下記の実施形態における構成要素には、当業者が置換可能かつ容易なもの、あるいは実質的に同一のものが含まれる。 Hereinafter, embodiments of the female terminal and the electric wire with a terminal according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments. In addition, the components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same.

［実施形態］
本実施形態に係る雌端子及び端子付き電線について図１〜図４を参照して説明する。図１は、実施形態に係る雌端子及び端子付き電線の概略構成を示す模式図である。図２は、実施形態に係る雌端子の概略構成を示す部分断面図である。図３（Ａ）及び図３（Ｂ）は、実施形態に係る雌端子の各接点部の概略構成を示す断面図である。図４は、実施形態に係る雌端子の接点部の概略構成を示す斜視図である。 [Embodiment]
The female terminal and the electric wire with a terminal according to the present embodiment will be described with reference to FIGS. 1 to 4. FIG. 1 is a schematic view showing a schematic configuration of a female terminal and an electric wire with a terminal according to an embodiment. FIG. 2 is a partial cross-sectional view showing a schematic configuration of a female terminal according to an embodiment. 3A and 3B are cross-sectional views showing a schematic configuration of each contact portion of the female terminal according to the embodiment. FIG. 4 is a perspective view showing a schematic configuration of a contact portion of a female terminal according to an embodiment.

なお、以下の説明において、図１、図２、図３（Ａ）、及び図３（Ｂ）に示すＸ方向は、本実施形態における雌端子の挿抜方向である。特に、Ｘ１方向が挿抜方向における挿入方向、Ｘ２方向が挿抜方向における抜去方向である。Ｙ方向は、本実施形態における雌端子の幅方向であり、挿抜方向に直交する方向である。Ｚ方向は、本実施形態における雌端子の上下方向であり、挿抜方向及び幅方向に直交する方向である。Ｘ方向、Ｙ方向、及びＺ方向は、相互に直交する。なお、上下方向は鉛直方向に限られない。 In the following description, the X direction shown in FIGS. 1, 2, 3 (A), and 3 (B) is the insertion / removal direction of the female terminal in the present embodiment. In particular, the X1 direction is the insertion direction in the insertion / extraction direction, and the X2 direction is the removal direction in the insertion / extraction direction. The Y direction is the width direction of the female terminal in the present embodiment, and is a direction orthogonal to the insertion / removal direction. The Z direction is the vertical direction of the female terminal in the present embodiment, and is a direction orthogonal to the insertion / extraction direction and the width direction. The X, Y, and Z directions are orthogonal to each other. The vertical direction is not limited to the vertical direction.

本実施形態に係る雌端子１は、導電性を有する金属製のコネクタ端子であり、絶縁性を有する樹脂製のメスコネクタＦＣに収容される。雌端子１は、例えば、金属板を打ち抜いて折り曲げ加工等をすることにより成形される。雌端子１は、例えば、銅、銅合金、アルミニウム、アルミニウム合金等によって構成される。雌端子１は、オスコネクタＭＣ側の雄端子２と嵌合して電気的に接続される。 The female terminal 1 according to the present embodiment is a conductive metal connector terminal, and is housed in an insulating resin female connector FC. The female terminal 1 is formed, for example, by punching out a metal plate and bending it. The female terminal 1 is made of, for example, copper, a copper alloy, aluminum, an aluminum alloy, or the like. The female terminal 1 is fitted with the male terminal 2 on the male connector MC side and electrically connected.

雄端子２は、導電性を有する金属製のコネクタ端子であり、絶縁性を有する樹脂製のオスコネクタＭＣに収容される。雄端子２は、例えば、金属板を打ち抜いて折り曲げ加工等をすることにより成形される。雄端子２は、例えば、銅、銅合金、アルミニウム、アルミニウム合金等によって構成される。雄端子２は、図１に示すように、タブ部３０と、箱部３１と、バレル部３２とを備える。雄端子２は、挿入方向側の先端から抜去方向に向かって、タブ部３０、箱部３１、バレル部３２の順に並んで連結して構成される。 The male terminal 2 is a conductive metal connector terminal, and is housed in an insulating resin male connector MC. The male terminal 2 is formed, for example, by punching out a metal plate and bending it. The male terminal 2 is made of, for example, copper, a copper alloy, aluminum, an aluminum alloy, or the like. As shown in FIG. 1, the male terminal 2 includes a tab portion 30, a box portion 31, and a barrel portion 32. The male terminal 2 is configured by connecting the tab portion 30, the box portion 31, and the barrel portion 32 in this order from the tip on the insertion direction side toward the removal direction.

タブ部３０は、平板状に形成されており、箱部３１の挿入方向の端部から挿入方向に向けて延在し、雌端子１に挿入される部分である。箱部３１は、雄端子２がオスコネクタＭＣに収容された収容状態において、ハウジングＭＨに固定保持される部分である。箱部３１は、オスコネクタＭＣのハウジングＭＨに組み付けられる樹脂製の端子止めＰにより抜去方向側への移動が制限される。バレル部３２は、雄端子２と電線Ｗの端末とを電気的に接続する部分である。バレル部３２は、電線Ｗの端末に加締められ圧着される。 The tab portion 30 is formed in a flat plate shape, extends from the end portion of the box portion 31 in the insertion direction toward the insertion direction, and is a portion to be inserted into the female terminal 1. The box portion 31 is a portion fixedly held by the housing MH in a housed state in which the male terminal 2 is housed in the male connector MC. The movement of the box portion 31 in the removal direction is restricted by the resin terminal stopper P attached to the housing MH of the male connector MC. The barrel portion 32 is a portion that electrically connects the male terminal 2 and the terminal of the electric wire W. The barrel portion 32 is crimped and crimped to the terminal of the electric wire W.

雌端子１は、図１に示すように、箱部１０と、バレル部２０とを備える。雌端子１は、抜去方向側の先端にある開口１１から挿入方向に向かって、箱部１０、バレル部２０の順に並んで連結して構成される。開口１１は、箱部１０において、雄端子２の挿入方向と反対側に開口する部分である。ここで、バレル部２０は、雌端子１と電線Ｗの端末とを電気的に接続する部分である。バレル部２０は、電線Ｗの端末に加締められ圧着される。本実施形態における端子付き電線３は、電線Ｗと、電線Ｗに設けられた雌端子１とを備えるものである。 As shown in FIG. 1, the female terminal 1 includes a box portion 10 and a barrel portion 20. The female terminal 1 is configured by connecting the box portion 10 and the barrel portion 20 in this order from the opening 11 at the tip on the removal direction side toward the insertion direction. The opening 11 is a portion of the box portion 10 that opens in the direction opposite to the insertion direction of the male terminal 2. Here, the barrel portion 20 is a portion that electrically connects the female terminal 1 and the terminal of the electric wire W. The barrel portion 20 is crimped and crimped to the terminal of the electric wire W. The electric wire 3 with a terminal in the present embodiment includes an electric wire W and a female terminal 1 provided on the electric wire W.

箱部１０は、雌端子１がメスコネクタＦＣに収容された収容状態において、ハウジングＦＨに固定保持される部分である。箱部１０は、メスコネクタＦＣのハウジングＦＨに組み付けられる樹脂製の端子止めＰにより抜去方向側への移動が制限される。箱部１０は、弾性接触片１２と、壁部１３と、収容空間部１７とを有する。ここで、収容空間部１７は、コネクタ嵌合時に、開口１１を介して雄端子２のタブ部３０が挿入される空間である。収容空間部１７は、壁部１３、後述する壁部１８等により形成され、開口１１を介して外部と連通する。 The box portion 10 is a portion in which the female terminal 1 is fixedly held by the housing FH in a housed state in which the female terminal 1 is housed in the female connector FC. The movement of the box portion 10 in the removal direction is restricted by the resin terminal stopper P attached to the housing FH of the female connector FC. The box portion 10 has an elastic contact piece 12, a wall portion 13, and a storage space portion 17. Here, the accommodation space portion 17 is a space in which the tab portion 30 of the male terminal 2 is inserted through the opening 11 when the connector is fitted. The accommodation space portion 17 is formed by a wall portion 13, a wall portion 18 described later, and the like, and communicates with the outside through the opening 11.

弾性接触片１２は、開口１１から挿入方向に延在し、コネクタ嵌合時に箱部１０にタブ部３０が挿入された挿入状態でタブ部３０に対して弾性接触するものである。弾性接触片１２は、抜去方向側の端部が、箱部１０を形成する壁部１８に連結されており、挿入方向側の端部が自由端である。壁部１８は、壁部１３と上下方向に対向して配置され、箱部１０の底面壁部を構成する。壁部１８は、壁部１３と共に、収容空間部１７を部分的に形成する。弾性接触片１２は、基端を支点とし、支点と反対方向の端部を自由端とする片持ち梁構造を有する。弾性接触片１２は、抜去方向側の端部が当該抜去方向と反対側の挿入方向に折り返されている。弾性接触片１２は、幅方向の断面形状が壁部１３側に向けて緩やかに膨らむように湾曲した形状を有する。弾性接触片１２は、コネクタ嵌合時には、図２に示すように、箱部１０にタブ部３０が挿入された挿入状態で、タブ部３０に上下方向において接触する接点部１２ａ（接触点）を有する。接点部１２ａは、例えば、壁部１３に向かって円弧状に突出して形成されている。 The elastic contact piece 12 extends from the opening 11 in the insertion direction, and elastically contacts the tab portion 30 in the inserted state in which the tab portion 30 is inserted into the box portion 10 when the connector is fitted. The end of the elastic contact piece 12 on the removal direction side is connected to the wall portion 18 forming the box portion 10, and the end on the insertion direction side is a free end. The wall portion 18 is arranged so as to face the wall portion 13 in the vertical direction, and constitutes a bottom wall portion of the box portion 10. The wall portion 18 and the wall portion 13 partially form the accommodation space portion 17. The elastic contact piece 12 has a cantilever structure in which the base end is a fulcrum and the end in the direction opposite to the fulcrum is a free end. The end of the elastic contact piece 12 on the removal direction side is folded back in the insertion direction opposite to the removal direction. The elastic contact piece 12 has a curved shape so that the cross-sectional shape in the width direction gently swells toward the wall portion 13. As shown in FIG. 2, the elastic contact piece 12 has a contact portion 12a (contact point) that contacts the tab portion 30 in the vertical direction in the inserted state in which the tab portion 30 is inserted into the box portion 10 when the connector is fitted. Have. The contact portion 12a is formed so as to project in an arc shape toward the wall portion 13, for example.

壁部１３は、箱部１０にタブ部３０が挿入された挿入状態で、当該タブ部３０を挟んで弾性接触片１２と対向する部分である。壁部１３は、壁部１８と上下方向に対向して配置され、箱部１０の天井壁部を構成する。本実施形態における壁部１３は、一対の接点部１４，１５を有する。 The wall portion 13 is a portion facing the elastic contact piece 12 with the tab portion 30 sandwiched in the inserted state in which the tab portion 30 is inserted into the box portion 10. The wall portion 13 is arranged so as to face the wall portion 18 in the vertical direction, and constitutes the ceiling wall portion of the box portion 10. The wall portion 13 in the present embodiment has a pair of contact portions 14, 15.

一対の接点部１４，１５は、弾性接触片１２側に向けて突出し、箱部１０にタブ部３０が挿入された挿入状態でタブ部３０に接触する。一対の接点部１４，１５は、当該挿入状態で、タブ部３０を弾性接触片１２の接点部１２ａとの間で挟持する。一対の接点部１４，１５は、壁部１３の挿抜方向に沿って間隔をあけて設けられている。一対の接点部１４，１５のうち、一方の接点部１４（第１接点部）は、他方の接点部１５（第２接点部）よりも開口１１側に配置され、他方の接点部１５は、開口１１側と反対方向に配置される。一方の接点部１４と他方の接点部１５との間が弾性接触片１２と反対側に凹んでいる。本実施形態における接点部１４は、挿抜方向における抜去方向側に設けられており、接点部１５は、挿抜方向における挿入方向側に設けられている。各接点部１４，１５は、接触面１４ａ，１５ａと、頂点１４ｂ，１５ｂと、を有する。 The pair of contact portions 14, 15 project toward the elastic contact piece 12 side, and come into contact with the tab portion 30 in the inserted state in which the tab portion 30 is inserted into the box portion 10. The pair of contact portions 14, 15 sandwich the tab portion 30 with the contact portion 12a of the elastic contact piece 12 in the inserted state. The pair of contact portions 14, 15 are provided at intervals along the insertion / removal direction of the wall portion 13. Of the pair of contact portions 14, 15, one contact portion 14 (first contact portion) is arranged closer to the opening 11 than the other contact portion 15 (second contact portion), and the other contact portion 15 is arranged. It is arranged in the direction opposite to the opening 11 side. The space between one contact portion 14 and the other contact portion 15 is recessed on the opposite side of the elastic contact piece 12. The contact portion 14 in the present embodiment is provided on the extraction direction side in the insertion / extraction direction, and the contact portion 15 is provided on the insertion direction side in the insertion / extraction direction. Each of the contact portions 14 and 15 has contact surfaces 14a and 15a and vertices 14b and 15b.

接触面１４ａ，１５ａは、箱部１０にタブ部３０が挿入された挿入状態で当該タブ部３０に接触する部分である。各接触面１４ａ，１５ａは、接点部１４，１５の幅方向から見た断面形状が弾性接触片１２側に向けて膨らむように湾曲した形状を有する。接点部１４，１５は、当該接点部１４，１５の幅方向から見た断面形状が弾性接触片１２側に向けて膨らむように湾曲した形状を有するが、図４に示すように、当該接点部１４，１５の挿入方向から見た断面形状が弾性接触片１２側に向けて矩形状に形成されている。本実施形態における接触面１４ａ，１５ａは、図３（Ａ）、図３（Ｂ）、図４に示すように、断面形状が、異なる曲率半径を有する複数の円弧状部分を有する。接触面１４ａは、挿入方向に向かって順に、中心をＯｘとする曲率半径ｒｘの円弧状部分と、中心をＯｙとする曲率半径ｒｙの円弧状部分とを有する。接触面１５ａは、挿入方向に向かって順に、中心をＯｙとする曲率半径ｒｙの円弧状部分と、中心をＯｘとする曲率半径ｒｘの円弧状部分とを有する。本実施形態では、一方の頂点１４ｂを挟んで他方の頂点１５ｂに向かう側の円弧部分の曲率半径ｒｙが、一方の頂点１４ｂを挟んで他方の頂点１５ｂとは反対側の円弧状部分の曲率半径ｒｘより大きい。また、一方の頂点１５ｂを挟んで他方の頂点１４ｂに向かう側の円弧部分の曲率半径ｒｙが、一方の頂点１５ｂを挟んで他方の頂点１４ｂとは反対側の円弧状部分の曲率半径ｒｘより大きい。すなわち、２つの曲率半径ｒｘ，ｒｙの関係は、ｒｘ＜ｒｙとなる。 The contact surfaces 14a and 15a are portions that come into contact with the tab portion 30 in the inserted state in which the tab portion 30 is inserted into the box portion 10. Each of the contact surfaces 14a and 15a has a shape in which the cross-sectional shape of the contact portions 14 and 15 when viewed from the width direction is curved so as to bulge toward the elastic contact piece 12 side. The contact portions 14 and 15 have a shape in which the cross-sectional shape of the contact portions 14 and 15 viewed from the width direction is curved so as to bulge toward the elastic contact piece 12, but as shown in FIG. The cross-sectional shapes of 14 and 15 seen from the insertion direction are formed in a rectangular shape toward the elastic contact piece 12 side. As shown in FIGS. 3A, 3B, and 4, the contact surfaces 14a and 15a in the present embodiment have a plurality of arcuate portions having different radii of curvature in cross-sectional shape. The contact surface 14a has, in order from the insertion direction, an arc-shaped portion having a radius of curvature rx having the center Ox and an arc-shaped portion having a radius of curvature ry having the center Oy. The contact surface 15a has, in order from the insertion direction, an arc-shaped portion having a radius of curvature ry having the center Oy and an arc-shaped portion having a radius of curvature rx having the center Ox. In the present embodiment, the radius of curvature ry of the arcuate portion on the side facing the other vertex 15b across one vertex 14b is the radius of curvature of the arcuate portion on the side opposite to the other vertex 15b across one vertex 14b. Greater than rx. Further, the radius of curvature ry of the arcuate portion on the side facing the other apex 14b across one apex 15b is larger than the radius of curvature rx of the arcuate portion on the side opposite to the other apex 14b across one apex 15b. .. That is, the relationship between the two radii of curvature rx and ry is rx <ry.

頂点１４ｂ，１５ｂは、接触面１４ａ，１５ａにおいて弾性接触片１２側に最も突出し、かつ箱部１０にタブ部３０が挿入された挿入状態で当該タブ部３０に接触する部分である。本実施形態における各頂点１４ｂ，１５ｂは、各接触面１４ａ，１５ａの挿抜方向において、曲率半径がｒｙ→ｒｘまたはｒｘ→ｒｙに変化する点である。一方の接点部１４における頂点１４ｂと他方の接点部１５における頂点１５ｂとの間が弾性接触片１２と反対側に凹んでおり、凹部１６を形成する。凹部１６は、弾性接触片１２の接点部１２ａと上下方向に対向する位置に形成される。言い換えると、接点部１２ａは、挿入状態でタブ部３０を挟んで凹部１６と対向する位置にある。接点部１２ａは、凹部１６が頂点１４ｂと頂点１５ｂとの間に形成されていることから、頂点１４ｂと頂点１５ｂとの間に位置する。本実施形態における頂点１４ｂ，１５ｂは、箱部１０にタブ部３０が挿入された挿入状態で当該タブ部３０に線接触する。 The vertices 14b and 15b are the portions of the contact surfaces 14a and 15a that protrude most toward the elastic contact piece 12 and come into contact with the tab portion 30 in the inserted state in which the tab portion 30 is inserted into the box portion 10. Each of the vertices 14b and 15b in the present embodiment is a point where the radius of curvature changes from ry → rx or rx → ry in the insertion / extraction direction of the contact surfaces 14a and 15a. The apex 14b at one contact portion 14 and the apex 15b at the other contact portion 15 are recessed on the opposite side of the elastic contact piece 12 to form the recess 16. The recess 16 is formed at a position facing the contact portion 12a of the elastic contact piece 12 in the vertical direction. In other words, the contact portion 12a is in a position facing the recess 16 with the tab portion 30 interposed therebetween in the inserted state. Since the recess 16 is formed between the apex 14b and the apex 15b, the contact portion 12a is located between the apex 14b and the apex 15b. The vertices 14b and 15b in the present embodiment make line contact with the tab portion 30 in the inserted state in which the tab portion 30 is inserted into the box portion 10.

次に、本実施形態のコネクタ嵌合時における雌端子１の作用について説明する。 Next, the operation of the female terminal 1 when the connector of the present embodiment is fitted will be described.

まず、コネクタ嵌合時において、雌端子１に対して雄端子２の挿入が開始されると、タブ部３０が、上下方向において接点部１４の頂点１４ｂ，接点部１２ａ、接点部１５の頂点１５ｂの順に接触する。雌端子１に対する雄端子２の挿入が継続されると、タブ部３０が、頂点１４ｂ，１５ｂ、接点部１２ａを摺動しながら挿入方向へ移動する。雄端子２の挿入方向への移動が終了すると、雌端子１が完全に挿入された完全挿入状態になる。完全挿入状態において、タブ部３０は、頂点１４ｂ，１５ｂと接点部１２ａにより上下方向で挟持される。頂点１４ｂとタブ部３０の接触点と、頂点１５ｂとタブ部３０の接触点と、接点部１２ａとタブ部３０との接触点は、例えば、接点部１２ａとタブ部３０との接触点を頂点とする逆二等辺三角形を構成する。 First, when the male terminal 2 is started to be inserted into the female terminal 1 at the time of connector fitting, the tab portion 30 has the apex 14b of the contact portion 14, the contact portion 12a, and the apex 15b of the contact portion 15 in the vertical direction. Contact in the order of. When the insertion of the male terminal 2 into the female terminal 1 is continued, the tab portion 30 moves in the insertion direction while sliding the vertices 14b and 15b and the contact portion 12a. When the movement of the male terminal 2 in the insertion direction is completed, the female terminal 1 is completely inserted into the fully inserted state. In the fully inserted state, the tab portion 30 is sandwiched in the vertical direction by the vertices 14b and 15b and the contact portion 12a. The contact point between the apex 14b and the tab portion 30, the contact point between the apex 15b and the tab portion 30, and the contact point between the contact portion 12a and the tab portion 30 are, for example, the contact points between the contact portion 12a and the tab portion 30. Construct an inverted isosceles triangle.

ここで、図２に示す頂点１４ｂと頂点１５ｂとの間の距離Ｌ１は、仮想接点部４１の仮想頂点４１ａと仮想接点部４２の仮想頂点４２ａとの間の距離Ｌ２より長い。この仮想接点部４１，４２は、従来の雌端子と同様に、幅方向から見た断面形状が弾性接触片１２側に向けて半円形状に形成された接触面を有する。この接触面は、断面形状が１つの曲率半径を有する単一の円弧形状を有する。仮想頂点４１ａと仮想頂点４２ａは、各仮想接点部４１，４２の挿抜方向における中心に配置される。ここでいう「接点部の挿抜方向における中心」とは、接点部の幅方向から見た断面形状が成す曲線における変曲点を基準として、２つの変曲点を挿抜方向に結んだ直線における中心を意味する。本実施形態では、接点部１４に対応する変曲点１４ｃと変曲点１４ｄとの間の「接点部１４の挿抜方向における中心」が仮想頂点４１ａとなっている。一方、接点部１５に対応する変曲点１５ｃと変曲点１５ｄとの間の「接点部１５の挿抜方向における中心」が仮想頂点４２ａとなっている。したがって、本実施形態における接点部１４における頂点１４ｂは、当該接点部１４の挿抜方向における中心（仮想頂点４１ａ）よりも抜去方向側に配置される。接点部１５における頂点１５ｂは、当該接点部１５の挿抜方向における中心（仮想頂点４２ａ）よりも挿入方向側に配置される。これより、距離Ｌ１＞距離Ｌ２となる。このように、従来、タブ部３０を上方側から支持する２箇所の仮想頂点４１ａ，４２ａ間の距離がＬ２である場合、各頂点１４ｂ，１５ｂを、各接点部１４，１５の挿入方向における中心（各仮想頂点４１ａ，４２ａ）よりも外側に配置することで、２つの頂点１４ｂ，１５ｂが離間する。これにより、頂点１４ｂとタブ部３０の接触点と、頂点１５ｂとタブ部３０の接触点と、接点部１２ａとタブ部３０との接触点とで構成される逆二等辺三角形の底辺に相当する部分が長くなることで、外部からの振動等によりタブ部３０に作用するモーメントを分散し、タブ部３０の上下方向の傾きを抑制する力が増加する。 Here, the distance L1 between the apex 14b and the apex 15b shown in FIG. 2 is longer than the distance L2 between the virtual apex 41a of the virtual contact portion 41 and the virtual apex 42a of the virtual contact portion 42. Similar to the conventional female terminals, the virtual contact portions 41 and 42 have a contact surface whose cross-sectional shape when viewed from the width direction is formed in a semicircular shape toward the elastic contact piece 12 side. The contact surface has a single arcuate shape with a cross-sectional shape having one radius of curvature. The virtual apex 41a and the virtual apex 42a are arranged at the center of each of the virtual contact portions 41 and 42 in the insertion / extraction direction. The "center in the insertion / extraction direction of the contact portion" here is the center in the straight line connecting the two inflection points in the insertion / extraction direction with reference to the inflection point in the curve formed by the cross-sectional shape seen from the width direction of the contact portion. Means. In the present embodiment, the "center in the insertion / extraction direction of the contact portion 14" between the inflection point 14c corresponding to the contact portion 14 and the inflection point 14d is the virtual apex 41a. On the other hand, the "center in the insertion / extraction direction of the contact portion 15" between the inflection point 15c corresponding to the contact portion 15 and the inflection point 15d is the virtual apex 42a. Therefore, the apex 14b of the contact portion 14 in the present embodiment is arranged on the extraction direction side of the center (virtual apex 41a) of the contact portion 14 in the insertion / extraction direction. The apex 15b of the contact portion 15 is arranged on the insertion direction side of the center (virtual apex 42a) of the contact portion 15 in the insertion / extraction direction. From this, the distance L1> the distance L2. As described above, conventionally, when the distance between the two virtual vertices 41a and 42a that support the tab portion 30 from the upper side is L2, the vertices 14b and 15b are centered in the insertion direction of the contact portions 14 and 15. By arranging it outside (each virtual vertex 41a, 42a), the two vertices 14b, 15b are separated from each other. As a result, it corresponds to the base of an inverted isosceles triangle composed of a contact point between the apex 14b and the tab portion 30, a contact point between the apex 15b and the tab portion 30, and a contact point between the contact portion 12a and the tab portion 30. By lengthening the portion, the moment acting on the tab portion 30 due to external vibration or the like is dispersed, and the force for suppressing the vertical tilt of the tab portion 30 increases.

以上で説明した本実施形態に係る雌端子１及び端子付き電線３は、雄端子２のタブ部３０が挿入される箱部１０を備える。箱部１０は、タブ部３０が挿入された挿入状態でタブ部３０に接点部１２ａで弾性接触する弾性接触片１２と、タブ部３０を挟んで弾性接触片１２と対向する壁部１３とを有する。壁部１３は、弾性接触片１２側に向けて突出し、挿入状態でタブ部３０に接触する一対の接点部１４，１５と、接点部１４，１５間に形成された凹部１６とを有する。各接点部１４，１５は、当該接点部１４，１５の幅方向から見た断面形状が弾性接触片１２側に向けて湾曲した接触面１４ａ，１５ａと、挿入状態でタブ部３０に接触する頂点１４ｂ，１５ｂと有する。接点部１２ａは、挿入状態でタブ部３０を挟んで凹部１６と対向する位置にある。頂点１４ｂは、接点部１４の挿抜方向における仮想頂点４１ａよりも抜去方向側に配置され、頂点１５ｂは、接点部１５の挿抜方向における仮想頂点４２ａよりも挿入方向側に配置される。 The female terminal 1 and the electric wire 3 with terminals according to the present embodiment described above include a box portion 10 into which the tab portion 30 of the male terminal 2 is inserted. The box portion 10 has an elastic contact piece 12 that makes elastic contact with the tab portion 30 at the contact portion 12a in the inserted state in which the tab portion 30 is inserted, and a wall portion 13 that faces the elastic contact piece 12 with the tab portion 30 interposed therebetween. Have. The wall portion 13 has a pair of contact portions 14, 15 that protrude toward the elastic contact piece 12 side and come into contact with the tab portion 30 in the inserted state, and a recess 16 formed between the contact portions 14, 15. Each of the contact portions 14 and 15 has contact surfaces 14a and 15a whose cross-sectional shape viewed from the width direction of the contact portions 14 and 15 is curved toward the elastic contact piece 12 side, and vertices that come into contact with the tab portion 30 in the inserted state. It has 14b and 15b. The contact portion 12a is in a position facing the recess 16 with the tab portion 30 interposed therebetween in the inserted state. The apex 14b is arranged on the extraction direction side of the virtual apex 41a in the insertion / extraction direction of the contact portion 14, and the apex 15b is arranged on the insertion direction side of the virtual apex 42a in the insertion / extraction direction of the contact portion 15.

上記構成により、従来は、各頂点１４ｂ，１５ｂが、各接点部１４，１５の挿抜方向における中心（仮想頂点４１ａ，４２ａ）に配置されていたが、頂点１４ｂが接点部１４の挿抜方向における仮想頂点４１ａよりも抜去方向側に配置され、頂点１５ｂが接点部１５の挿抜方向における仮想頂点４２ａよりも挿入方向側に配置される。この結果、２つの頂点１４ｂ，１５ｂが仮想頂点４１ａ，４２ａより離間し、一対の接点部１４，１５と弾性接触片１２との間に挟持されたタブ部３０の上下方向の傾きを抑制する力が増加するので、例えば車両振動によりタブ部３０に作用するモーメントが分散して、雌雄端子間の接点摺動を軽減することが可能となる。また、一対の接点部１４，１５を左右対称な半円筒形状のまま、頂点を尖らせることで接点位置を互いに離間させることも可能だが、雌端子を成型する金型の強度が低下する可能性があることから、金型の強度を低下させることなく、接点位置を変更することが可能となる。 According to the above configuration, conventionally, the vertices 14b and 15b are arranged at the centers (virtual vertices 41a and 42a) of the contact portions 14 and 15 in the insertion / removal direction, but the vertices 14b are virtual in the insertion / removal direction of the contact portions 14. It is arranged on the extraction direction side of the apex 41a, and the apex 15b is arranged on the insertion direction side of the virtual apex 42a in the insertion / extraction direction of the contact portion 15. As a result, the two vertices 14b and 15b are separated from the virtual vertices 41a and 42a, and a force for suppressing the vertical inclination of the tab portion 30 sandwiched between the pair of contact portions 14 and 15 and the elastic contact piece 12. Therefore, for example, the moment acting on the tab portion 30 due to vehicle vibration is dispersed, and it becomes possible to reduce the contact sliding between the male and female terminals. It is also possible to separate the contact positions from each other by sharpening the vertices while keeping the pair of contact portions 14 and 15 in a symmetrical semi-cylindrical shape, but the strength of the mold for molding the female terminal may decrease. Therefore, it is possible to change the contact position without lowering the strength of the mold.

また、本実施形態の雌端子１は、各接触面１４ａ，１５ａが、断面形状が、異なる曲率半径を有する複数の円弧状部分を有する。複数の円弧状部分は、一方の頂点（１４ｂまたは１５ｂ）を挟んで他方の頂点（１５ｂまたは１４ｂ）に向かう側の円弧状部分の曲率半径ｒｙが、一方の頂点（１４ｂまたは１５ｂ）を挟んで他方の頂点（１５ｂまたは１４ｂ）とは反対側の円弧状部分の曲率半径ｒｘより大きい。これにより、一対の接点部１４，１５間が挿抜方向において十分に離間できない場合、より効果的に頂点１３ｂ，１４ｂを離間させることができる。 Further, in the female terminal 1 of the present embodiment, each of the contact surfaces 14a and 15a has a plurality of arc-shaped portions having different radii of curvature in cross-sectional shape. In the plurality of arcuate portions, the radius of curvature ry of the arcuate portion on the side facing the other vertex (15b or 14b) across one vertex (14b or 15b) sandwiches one vertex (14b or 15b). It is larger than the radius of curvature rx of the arcuate portion on the opposite side of the other vertex (15b or 14b). As a result, when the pair of contact portions 14 and 15 cannot be sufficiently separated in the insertion / extraction direction, the vertices 13b and 14b can be separated more effectively.

上記実施形態では、各接点部１４，１５は、図４に示すようにタブ部３０に対して線接触する形状（例えば、半楕円柱状）に形成されているが、これに限定されるものではない。図５は、実施形態の変形例に係る雌端子の接点部の概略構成を示す斜視図である。なお、以下の説明において、上記実施形態と共通する構成は同一の符号を付して、その説明を省略する。 In the above embodiment, the contact portions 14 and 15 are formed in a shape (for example, a semi-elliptical columnar shape) in line contact with the tab portion 30 as shown in FIG. 4, but the present invention is not limited to this. No. FIG. 5 is a perspective view showing a schematic configuration of a contact portion of a female terminal according to a modified example of the embodiment. In the following description, the configurations common to the above embodiments are designated by the same reference numerals, and the description thereof will be omitted.

実施形態の変形例に係る雌端子１は、接点部１４，１５の形状が上記実施形態とは異なる。図５において、変形例における雌端子１の接点部１４Ａ，１５Ａは、幅方向から見た断面形状が、接点部１４，１５と同様に、弾性接触片１２側に向けて膨らむように湾曲した形状を有するが、当該接点部１４Ａ，１５Ａの挿抜方向から見た断面形状が弾性接触片１２側に向けて半円形状に形成されている。各接点部１４，１５は、接触面１４Ａａ，１５Ａａと、頂点１４Ａｂ，１５Ａｂとを有する。 In the female terminal 1 according to the modified example of the embodiment, the shapes of the contact portions 14 and 15 are different from those of the above-described embodiment. In FIG. 5, the contact portions 14A and 15A of the female terminal 1 in the modified example have a shape in which the cross-sectional shape seen from the width direction is curved so as to bulge toward the elastic contact piece 12 side, similarly to the contact portions 14 and 15. However, the cross-sectional shape of the contact portions 14A and 15A as viewed from the insertion / extraction direction is formed in a semicircular shape toward the elastic contact piece 12 side. Each of the contact portions 14 and 15 has contact surfaces 14Aa and 15Aa and vertices 14Ab and 15Ab.

接触面１４Ａａ，１５Ａａは、箱部１０にタブ部３０が挿入された挿入状態で当該タブ部３０に接触する部分である。各接触面１４Ａａ，１５Ａａは、接点部１４Ａ，１５Ａの幅方向から見た断面形状が弾性接触片１２側に向けて膨らむように湾曲した形状を有し、かつ当該接点部１４Ａ，１５Ａの挿抜方向から見た断面形状が弾性接触片１２側に向けて半円形状に形成されている。 The contact surfaces 14Aa and 15Aa are portions that come into contact with the tab portion 30 in the inserted state in which the tab portion 30 is inserted into the box portion 10. Each of the contact surfaces 14Aa and 15Aa has a shape in which the cross-sectional shape seen from the width direction of the contact portions 14A and 15A is curved so as to bulge toward the elastic contact piece 12 side, and the contact portions 14A and 15A are inserted and removed. The cross-sectional shape seen from the side is formed in a semicircular shape toward the elastic contact piece 12 side.

頂点１４Ａｂ，１５Ａｂは、接触面１４Ａａ，１５Ａａにおいて弾性接触片１２側に最も突出し、かつ箱部１０にタブ部３０が挿入された挿入状態で当該タブ部３０に接触する部分である。本実施形態の変形例における頂点１４Ａｂ，１５Ａｂは、箱部１０にタブ部３０が挿入された挿入状態で当該タブ部３０に点接触する。これにより、これにより、各接点部１４，１５がタブ部３０に点接触するので、面接触に比べて、２つの頂点１３ｂ，１４ｂをより離間させることができる。 The vertices 14Ab and 15Ab are the portions of the contact surfaces 14Aa and 15Aa that protrude most toward the elastic contact piece 12 and come into contact with the tab portion 30 in the inserted state in which the tab portion 30 is inserted into the box portion 10. The vertices 14Ab and 15Ab in the modified example of the present embodiment make point contact with the tab portion 30 in the inserted state in which the tab portion 30 is inserted into the box portion 10. As a result, since the contact portions 14 and 15 make point contact with the tab portion 30, the two vertices 13b and 14b can be further separated from each other as compared with the surface contact.

１ 雌端子
２ 雄端子
３ 端子付き電線
１０，３１ 箱部
１１ 開口
１２ 弾性接触片
１２ａ 接点部
１３ 壁部
１４，１５ 接点部
１４ａ，１５ａ 接触面
１４ｂ，１５ｂ 頂点
１６ 凹部
１７ 収容空間部
２０，３２ バレル部
３０ タブ部
Ｗ 電線
ＭＣ オスコネクタ
ＦＣ メスコネクタ
Ｐ 端子止め 1 Female terminal 2 Male terminal 3 Electric wire with terminal 10, 31 Box part 11 Opening 12 Elastic contact piece 12a Contact part 13 Wall part 14, 15 Contact part 14a, 15a Contact surface 14b, 15b Top 16 Recession 17 Storage space 20, 32 Barrel part 30 Tab part W Electric wire MC Male connector FC Female connector P Terminal stop

Claims (4)

雄端子の挿入方向と反対側に開口し、前記開口を介して前記雄端子の平板状のタブ部が挿入される箱部を備え、
前記箱部は、
前記開口から前記挿入方向に延在し、前記タブ部が挿入された挿入状態で前記タブ部に対して接触点で弾性接触する弾性接触片と、
前記挿入状態で前記タブ部を挟んで前記弾性接触片と対向する壁部と、を有し、
前記壁部は、
前記箱部の挿抜方向に沿って設けられ、前記弾性接触片側に向けて突出し、かつ前記挿入状態で前記タブ部に接触する一対の接点部と、
一対の前記接点部のうちの一方の第１接点部と他方の第２接点部との間に形成され、前記弾性接触片と反対側に凹む凹部と、を有し、
前記第１接点部は、前記挿抜方向における抜去方向側に設けられており、
前記第２接点部は、前記挿抜方向における挿入方向側に設けられており、
各前記接点部は、
当該接点部の突出方向及び前記挿抜方向と直交する幅方向から見た断面形状が前記弾性接触片側に向けて膨らむように湾曲した接触面と、
前記接触面において前記弾性接触片側に最も突出し、かつ前記挿入状態で前記タブ部に接触する頂点と、を有し、
前記接触点は、前記挿入状態で前記タブ部を挟んで前記凹部に対向する位置にあり、
前記第１接点部における前記頂点は、当該第１接点部の前記挿抜方向における中心よりも抜去方向側に配置され、
前記第２接点部における前記頂点は、当該第２接点部の前記挿抜方向における中心よりも挿入方向側に配置される、
ことを特徴とする雌端子。 A box portion is provided that opens in the direction opposite to the insertion direction of the male terminal and into which the flat tab portion of the male terminal is inserted through the opening.
The box part
An elastic contact piece that extends from the opening in the insertion direction and makes elastic contact with the tab portion at a contact point in the inserted state in which the tab portion is inserted.
It has a wall portion facing the elastic contact piece with the tab portion sandwiched in the inserted state.
The wall part
A pair of contact portions that are provided along the insertion / extraction direction of the box portion, project toward the elastic contact one side, and come into contact with the tab portion in the inserted state.
It has a recess formed between the first contact portion of one of the pair of contact portions and the second contact portion of the other and recessed on the opposite side to the elastic contact piece.
The first contact portion is provided on the extraction direction side in the insertion / extraction direction.
The second contact portion is provided on the insertion direction side in the insertion / removal direction.
Each of the contact points
A contact surface whose cross-sectional shape viewed from the protruding direction of the contact portion and the width direction orthogonal to the insertion / extraction direction is curved so as to bulge toward the elastic contact one side.
The contact surface has an apex that most protrudes to one side of the elastic contact and contacts the tab portion in the inserted state.
The contact point is located at a position facing the recess with the tab portion sandwiched in the inserted state.
The apex of the first contact portion is arranged on the extraction direction side of the center of the first contact portion in the insertion / extraction direction.
The apex of the second contact portion is arranged on the insertion direction side of the center of the second contact portion in the insertion / extraction direction.
A female terminal characterized by that. 各前記接点部は、
前記挿入状態で前記タブ部に点接触する、
請求項１に記載の雌端子。 Each of the contact points
In the inserted state, point contact with the tab portion,
The female terminal according to claim 1. 各前記接触面は、
前記断面形状が、異なる曲率半径を有する複数の円弧状部分を有し、
複数の前記円弧状部分は、
一方の前記頂点を挟んで他方の前記頂点に向かう側の円弧状部分の曲率半径が、一方の前記頂点を挟んで他方の前記頂点とは反対側の円弧状部分の曲率半径より大きい、
請求項１または２に記載の雌端子。 Each of the contact surfaces
The cross-sectional shape has a plurality of arcuate portions having different radii of curvature.
The plurality of arcuate portions
The radius of curvature of the arcuate portion on the side of one of the vertices and toward the other apex is larger than the radius of curvature of the arcuate portion of the arcuate portion on the side opposite to the other apex of one of the vertices.
The female terminal according to claim 1 or 2. 電線と、
前記電線に設けられる雌端子とを備え、
前記雌端子は、
雄端子の挿入方向と反対側に開口し、前記開口を介して前記雄端子の平板状のタブ部が挿入される箱部を備え、
前記箱部は、
前記開口から前記挿入方向に延在し、前記タブ部が挿入された挿入状態で前記タブ部に対して接触点で弾性接触する弾性接触片と、
前記挿入状態で前記タブ部を挟んで前記弾性接触片と対向する壁部と、を有し、
前記壁部は、
前記箱部の挿抜方向に沿って設けられ、前記弾性接触片側に向けて突出し、かつ前記挿入状態で前記タブ部に接触する一対の接点部と、
一対の前記接点部のうちの一方の第１接点部と他方の第２接点部との間に形成され、前記弾性接触片と反対側に凹む凹部と、を有し、
前記第１接点部は、前記挿抜方向における抜去方向側に設けられており、
前記第２接点部は、前記挿抜方向における挿入方向側に設けられており、
各前記接点部は、
当該接点部の突出方向及び前記挿抜方向と直交する幅方向から見た断面形状が前記弾性接触片側に向けて膨らむように湾曲した接触面と、
前記接触面において前記弾性接触片側に最も突出し、かつ前記挿入状態で前記タブ部に接触する頂点と、を有し、
前記接触点は、前記挿入状態で前記タブ部を挟んで前記凹部に対向する位置にあり、
前記第１接点部における前記頂点は、当該第１接点部の前記挿抜方向における中心よりも抜去方向側に配置され、
前記第２接点部における前記頂点は、当該第２接点部の前記挿抜方向における中心よりも挿入方向側に配置される、
ことを特徴とする端子付き電線。 With electric wires
It is provided with a female terminal provided on the electric wire.
The female terminal
A box portion is provided that opens in the direction opposite to the insertion direction of the male terminal and into which the flat tab portion of the male terminal is inserted through the opening.
The box part
An elastic contact piece that extends from the opening in the insertion direction and makes elastic contact with the tab portion at a contact point in the inserted state in which the tab portion is inserted.
It has a wall portion facing the elastic contact piece with the tab portion sandwiched in the inserted state.
The wall part
A pair of contact portions that are provided along the insertion / extraction direction of the box portion, project toward the elastic contact one side, and come into contact with the tab portion in the inserted state.
It has a recess formed between the first contact portion of one of the pair of contact portions and the second contact portion of the other and recessed on the opposite side to the elastic contact piece.
The first contact portion is provided on the extraction direction side in the insertion / extraction direction.
The second contact portion is provided on the insertion direction side in the insertion / removal direction.
Each of the contact points
A contact surface whose cross-sectional shape viewed from the protruding direction of the contact portion and the width direction orthogonal to the insertion / extraction direction is curved so as to bulge toward the elastic contact one side.
The contact surface has an apex that most protrudes to one side of the elastic contact and contacts the tab portion in the inserted state.
The contact point is located at a position facing the recess with the tab portion sandwiched in the inserted state.
The apex of the first contact portion is arranged on the extraction direction side of the center of the first contact portion in the insertion / extraction direction.
The apex of the second contact portion is arranged on the insertion direction side of the center of the second contact portion in the insertion / extraction direction.
An electric wire with a terminal that is characterized by that.
JP2020047282A 2020-03-18 2020-03-18 Female terminal and terminal-having electric wire Abandoned JP2021150094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020047282A JP2021150094A (en) 2020-03-18 2020-03-18 Female terminal and terminal-having electric wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020047282A JP2021150094A (en) 2020-03-18 2020-03-18 Female terminal and terminal-having electric wire

Publications (1)

Publication Number Publication Date
JP2021150094A true JP2021150094A (en) 2021-09-27

Family

ID=77849231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020047282A Abandoned JP2021150094A (en) 2020-03-18 2020-03-18 Female terminal and terminal-having electric wire

Country Status (1)

Country Link
JP (1) JP2021150094A (en)

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