JP2023023061A - Terminal connection structure - Google Patents

Terminal connection structure Download PDF

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JP2023023061A
JP2023023061A JP2021128239A JP2021128239A JP2023023061A JP 2023023061 A JP2023023061 A JP 2023023061A JP 2021128239 A JP2021128239 A JP 2021128239A JP 2021128239 A JP2021128239 A JP 2021128239A JP 2023023061 A JP2023023061 A JP 2023023061A
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terminal connection
terminal
tab
insertion direction
contact portion
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克吉 平郡
Katsuyoshi Hiragori
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Yazaki Corp
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Yazaki Corp
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Abstract

To obtain a terminal connection structure capable of ensuring electric connection stability.SOLUTION: A terminal connection structure 100 having a male terminal 10 with a tab 14, and a female terminal 30 to which the tab 14 is inserted. The female terminal 30 has a tubular terminal connection section 33. An elastic part 70 is formed on a right wall 33B1 of the terminal connection section 33. A support part 80 is formed on a left wall 33B2 of the terminal connection section 33. The elastic part 70 includes a first contact part 71 to be brought into contact with a right wall surface of the tab 14. The support part 80 includes a second contact part 81 and a third contact part 82 to be brought into contact with a left wall surface of the tab 14, which are spaced from each other in an insertion direction X. The first contact part 71 is disposed between the second contact part 81 and the third contact part 82 in the insertion direction X.SELECTED DRAWING: Figure 8

Description

本発明は、端子接続構造に関する。 The present invention relates to a terminal connection structure.

従来、雄端子と雌端子の接続構造として、雄端子に設けられた平板状の挿入片を、雌端子に設けられた筒状の端子接続部内で保持する構造が提案されている(例えば、特許文献1参照。)。特許文献1に記載の端子接続構造では、端子金具(雌端子)は、タブ(平板状の挿入片)が挿入される角筒部(端子接続部)を備えており、角筒部を構成する左右両側壁には、斜め後方かつ角筒部の内方へ片持ち状に延出する形態の弾性片が形成されている。 Conventionally, as a connection structure between a male terminal and a female terminal, a structure has been proposed in which a flat insertion piece provided on the male terminal is held within a cylindrical terminal connecting portion provided on the female terminal (for example, patent Reference 1). In the terminal connection structure described in Patent Document 1, the terminal fitting (female terminal) has a square tube portion (terminal connection portion) into which a tab (plate-like insertion piece) is inserted, and constitutes the square tube portion. The left and right side walls are formed with elastic pieces that extend obliquely rearward and inwardly of the square tubular portion in a cantilevered manner.

特開2009-54504号公報JP 2009-54504 A

上述の弾性片は、タブが挿入された際に角筒部の左右方向(幅方向)に弾性変位するように設けられており、当該弾性変位によってタブの左右両側面に生じる弾性復元力により、タブの幅方向への変位が抑制されるようになっている。しかしながら、特許文献1に記載の弾性片は、角筒部の左右両側壁に設けられているので、タブは、2つの弾性片により幅方向の2点で支持されることとなる。この場合、互いに接続された雄端子及び雌端子の接続部分に幅方向の外力が加わると、タブが角筒部内で変位する。具体的には、接続部分の幅方向一方に向けて力が加わった場合には、タブが幅方向一方の弾性片を同方向に変位させながら他方の弾性片から離れるように幅方向に変位する。また、接続部分の幅方向他方に向けて力が加わった場合には、タブが幅方向他方の弾性片を同方向に変位させながら一方の弾性片から離れるように幅方向に変位する。このように、タブが角筒部内で幅方向の両方に変位してしまうことでタブの変位量が増加し、角筒部内には、タブと角筒部の摩擦によって摩耗紛が生じることとなる。そして、この摩耗紛により、端子接続構造における電気的な接続の信頼性が低下することが懸念される。 The above-mentioned elastic piece is provided so as to be elastically displaced in the left-right direction (width direction) of the square tube portion when the tab is inserted. Displacement in the width direction of the tab is suppressed. However, since the elastic pieces described in Patent Document 1 are provided on the left and right side walls of the rectangular tubular portion, the tab is supported at two points in the width direction by the two elastic pieces. In this case, when an external force in the width direction is applied to the connecting portion of the male terminal and the female terminal that are connected to each other, the tab is displaced inside the square tube portion. Specifically, when a force is applied in one width direction of the connecting portion, the tab is displaced in the width direction away from the other elastic piece while displacing one elastic piece in the width direction in the same direction. . Also, when a force is applied in the other widthwise direction of the connecting portion, the tab is displaced in the width direction away from the one elastic piece while displacing the other widthwise elastic piece in the same direction. In this way, the tab is displaced in both width directions within the square tube, and the amount of displacement of the tab increases, and abrasion powder is generated inside the square tube due to friction between the tab and the square tube. . There is a concern that this wear powder may reduce the reliability of electrical connection in the terminal connection structure.

本発明の目的は、電気的な接続の安定性を確保できる端子接続構造を得ることにある。 SUMMARY OF THE INVENTION An object of the present invention is to obtain a terminal connection structure capable of ensuring stability of electrical connection.

前記課題を解決し目的を達成するために、請求項1に記載された発明は、平板状の挿入片を備える雄端子と、前記挿入片の挿入方向に延び同方向に前記挿入片が挿入される筒状の端子接続部を備える雌端子と、の端子接続構造であって、前記端子接続部における前記挿入方向に交差する幅方向の一方に設けられ該幅方向の外方に弾性変形可能な弾性部と、前記端子接続部における前記幅方向の他方に設けられる支持部と、を備え、前記弾性部には、前記挿入片の前記幅方向一端側に接触可能な第一接触部が設けられ、前記支持部には、前記端子接続部の内方に突出して前記挿入片の前記幅方向他端側に接触可能な第二接触部及び第三接触部が、互いに前記挿入方向に間隔をあけて設けられ、前記第一接触部は、前記挿入方向における前記第二接触部と前記第三接触部との間に配置されていることを特徴とする。 In order to solve the above problems and achieve the object, the invention described in claim 1 provides a male terminal having a flat plate-shaped insertion piece, and a male terminal extending in the insertion direction of the insertion piece and into which the insertion piece is inserted in the same direction. and a female terminal having a tubular terminal connection portion, wherein the terminal connection portion is provided on one side of the terminal connection portion in a width direction that intersects with the insertion direction and is elastically deformable outward in the width direction. An elastic portion and a support portion provided on the other side in the width direction of the terminal connection portion are provided, and the elastic portion is provided with a first contact portion capable of contacting one end side of the insertion piece in the width direction. a second contact portion and a third contact portion protruding inward from the terminal connection portion and capable of contacting the other widthwise end side of the insertion piece are spaced apart from each other in the insertion direction in the support portion; and the first contact portion is arranged between the second contact portion and the third contact portion in the insertion direction.

本発明によれば、電気的な接続の安定性を確保できる端子接続構造を得ることができる。 ADVANTAGE OF THE INVENTION According to this invention, the terminal connection structure which can ensure the stability of an electrical connection can be obtained.

本発明の一実施の形態にかかる端子接続構造を示す斜視図。BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the terminal connection structure concerning one embodiment of this invention. 前記端子接続構造の縦断面図。FIG. 2 is a longitudinal sectional view of the terminal connection structure; 前記端子接続構造を構成する雄端子の斜視図。The perspective view of the male terminal which comprises the said terminal connection structure. 前記端子接続構造を構成する雌端子の斜視図。FIG. 3 is a perspective view of a female terminal that constitutes the terminal connection structure; 前記雌端子を挿入方向手前側から見た正面図。The front view which looked at the said female terminal from the insertion direction front side. 図5におけるA-A線矢視断面図。FIG. 5 is a cross-sectional view taken along the line AA in FIG. 図6に示す前記雌端子の端子接続部にタブが挿入されている途中の状態を示す断面図。FIG. 7 is a cross-sectional view showing a state in which a tab is being inserted into the terminal connecting portion of the female terminal shown in FIG. 6; 図6に示す前記端子接続部にタブの挿入が完了した状態を示す断面図。FIG. 7 is a cross-sectional view showing a state in which a tab has been completely inserted into the terminal connection portion shown in FIG. 6; 図8におけるB-B線矢視断面図。FIG. 8 is a cross-sectional view taken along the line BB in FIG.

以下、本発明の一実施の形態を図1~図9に基づいて説明する。図1は、一実施の形態に係る端子接続構造100の形態を示す斜視図である。この端子接続構造100は、雄端子10を備える雄コネクタ1と、雌端子30を備える雌コネクタ2と、を備えて構成されている。なお、本実施の形態において、図に示す矢印X、矢印Y、矢印Zは、互いに直交している。そして、雄端子10の後述するタブ14(挿入片)が雌端子30の後述する端子接続部33に抜き挿しされる方向を矢印Xで示し「挿入方向X」と記す。また、「挿入方向X」の一方を手前側、他方を奥側とする。また、挿入方向Xに交差する方向であり端子接続部33の幅方向にあたる方向を、矢印Yで示し「左右方向Y」と記す。そして、挿入方向X及び左右方向Yに交差する方向であり端子接続部33の高さ方向にあたる方向を矢印Zで示し、「上下方向Z」と記す。 An embodiment of the present invention will be described below with reference to FIGS. 1 to 9. FIG. FIG. 1 is a perspective view showing a form of a terminal connection structure 100 according to one embodiment. This terminal connection structure 100 includes a male connector 1 having male terminals 10 and a female connector 2 having female terminals 30 . In this embodiment, arrow X, arrow Y, and arrow Z shown in the drawing are orthogonal to each other. An arrow X indicates a direction in which a tab 14 (insertion piece) of the male terminal 10 is inserted into and removed from a terminal connection portion 33 of the female terminal 30, and is referred to as an "insertion direction X". Also, one side of the "insertion direction X" is the front side, and the other side is the back side. Further, the direction crossing the insertion direction X and corresponding to the width direction of the terminal connection portion 33 is indicated by an arrow Y and described as a "horizontal direction Y". The direction that intersects the insertion direction X and the left-right direction Y and corresponds to the height direction of the terminal connection portion 33 is indicated by an arrow Z, and is referred to as the "vertical direction Z".

雄コネクタ1は、一の電線W1の挿入方向X奥側の端部に設けられる電子部品である。
図2に示すように、この雄コネクタ1は、雄端子10と、雄端子10を収容する雄ハウジング20と、を備えて構成されている。雄端子10は、図3に示すように、挿入方向Xの手前から奥に向かって、被覆加締め部11と、芯線加締め部12と、箱部13と、タブ14と、を備えて構成されている。電線W1は、図3に示すように、被覆W11と、芯線W12と、を備えて構成されている。芯線W12は、被覆W11で覆われおり、電線W1の挿入方向X奥側の端部では、被覆W11の一部が切除され、芯線W12が露出している。雄端子10は、電線W1の挿入方向X奥側の端部に接続されており、被覆W11が、被覆加締め部11に加締められることで、雄端子10と電線W1の保持力が確保されており、また、芯線W12が、芯線加締め部12に加締められることで、雄端子10と電線W1が、電気的に接続している。
The male connector 1 is an electronic component provided at the end of one electric wire W1 on the far side in the insertion direction X. As shown in FIG.
As shown in FIG. 2 , the male connector 1 includes male terminals 10 and a male housing 20 that accommodates the male terminals 10 . As shown in FIG. 3, the male terminal 10 includes, from the front to the back in the insertion direction X, a covering crimping portion 11, a core wire crimping portion 12, a box portion 13, and a tab 14. It is As shown in FIG. 3, the electric wire W1 includes a coating W11 and a core wire W12. The core wire W12 is covered with a coating W11, and a portion of the coating W11 is cut off at the end of the electric wire W1 on the far side in the insertion direction X to expose the core wire W12. The male terminal 10 is connected to the end of the electric wire W1 on the far side in the insertion direction X, and the covering W11 is crimped to the covering crimping portion 11, thereby securing the holding force between the male terminal 10 and the electric wire W1. Further, the core wire W12 is crimped by the core wire crimping portion 12, so that the male terminal 10 and the wire W1 are electrically connected.

箱部13は、挿入方向Xに延びるように扁平直方体の箱状に形成されている。箱部13の底壁には、後述するランス21a(図2にのみ図示)が嵌まり込む係止孔13A(図2にのみ図示)が、上下方向に貫通するように形成されている。タブ14は、雌端子30の端子接続部33に挿入され、雌端子30と電気的及び機械的に接続される挿入片である。このタブ14は、箱部13の挿入方向X奥側の端部から挿入方向X奥側に向けて突出するように扁平略直方体の平板状に形成されている。タブ14は、先端部(挿入方向X奥側の端部)が平面視で先端先細の台形状に形成されている。この先端部のうち、端子接続部33内で左右方向Yの最も左側に位置する部分は左角部14a(角部)を構成し、端子接続部33内で左右方向Yの最も右側に位置する部分は右角部14b(角部)を構成している。 The box portion 13 is formed in a flat rectangular parallelepiped box shape so as to extend in the insertion direction X. As shown in FIG. A locking hole 13A (shown only in FIG. 2) into which a locking lance 21a (shown only in FIG. 2) is fitted is formed in the bottom wall of the box portion 13 so as to penetrate vertically. The tab 14 is an insertion piece that is inserted into the terminal connection portion 33 of the female terminal 30 and electrically and mechanically connected to the female terminal 30 . The tab 14 is formed in a flat, substantially rectangular parallelepiped plate shape so as to protrude from the end of the box portion 13 on the back side in the insertion direction X toward the back side in the insertion direction X. As shown in FIG. The tip of the tab 14 (the end on the far side in the insertion direction X) is formed in a tapered trapezoidal shape in plan view. The leftmost portion in the left-right direction Y in the terminal connection portion 33 of the distal end portion constitutes the left corner portion 14 a (corner portion), and is located in the rightmost position in the left-right direction Y in the terminal connection portion 33 . The portion constitutes the right corner 14b (corner).

図2に示すように、雄ハウジング20は、略直方体の箱状に形成されている。この雄ハウジング20は、雄端子10を収容する雄端子収容室21と、後述する雌端子収容室41の外壁部分が嵌め込まれる接続凹部22と、雌ハウジング40の後述するロックアーム42が挿入される被ロック部23と、を備えて構成されている。雄端子収容室21は、雄ハウジング20内で挿入方向Xに延びるように形成されている。この雄端子収容室21は、挿入方向X手前側が外部に通じるように開口し、挿入方向X奥側が接続凹部22に連通している。雄端子収容室21には、挿入方向X手前側の開口から挿入方向X奥側に向けて、タブ14、箱部13、芯線加締め部12、被覆加締め部11の順で雄端子10が挿入されるようになっている。雄端子収容室21の底壁には、上下方向Z下側に弾性変形可能なランス21aが雄端子収容室21内に向けて立ち上がるように形成されている。このランス21aは、雄端子収容室21に挿入された雄端子10を固定するためのものである。雄端子収容室21に雄端子10が挿入される際には、ランス21aは、雄端子10に押されて上下方向Z下側に弾性変形し、雄端子10の挿入が完了すると、上述の箱部13の係止孔13Aに嵌まり込むように復元するようになっている。このランス21aの係止孔13Aへの嵌まり込みによって、雄端子10が雄ハウジング20に固定されるようになっている。 As shown in FIG. 2, the male housing 20 is formed in a substantially rectangular parallelepiped box shape. The male housing 20 includes a male terminal accommodating chamber 21 for accommodating the male terminal 10, a connection recess 22 into which the outer wall portion of the female terminal accommodating chamber 41 described later is fitted, and a lock arm 42 described later of the female housing 40 are inserted. and a locked portion 23 . The male terminal receiving chamber 21 is formed to extend in the insertion direction X within the male housing 20 . The male terminal accommodating chamber 21 is open so that the front side in the insertion direction X communicates with the outside, and the rear side in the insertion direction X communicates with the connection recess 22 . In the male terminal receiving chamber 21, the male terminal 10 is provided in the order of the tab 14, the box portion 13, the core wire crimping portion 12, and the coating crimping portion 11 from the opening on the front side in the insertion direction X toward the back side in the insertion direction X. It is designed to be inserted. A lance 21 a that is elastically deformable downward in the vertical direction Z is formed on the bottom wall of the male terminal accommodating chamber 21 so as to rise toward the inside of the male terminal accommodating chamber 21 . This lance 21a is for fixing the male terminal 10 inserted into the male terminal receiving chamber 21. As shown in FIG. When the male terminal 10 is inserted into the male terminal receiving chamber 21, the lance 21a is pushed by the male terminal 10 and is elastically deformed downward in the vertical direction Z. It is designed to be restored so as to fit into the locking hole 13A of the portion 13. As shown in FIG. The male terminal 10 is fixed to the male housing 20 by fitting the lance 21a into the locking hole 13A.

接続凹部22は、挿入方向X奥側に開口する凹部である。この接続凹部22の挿入方向X手前側の壁部には、雄端子収容室21と連通する貫通孔22aが、挿入方向Xに貫通するように形成されている。雄端子10が雄端子収容室21に挿入された状態では、この貫通孔22aを介してタブ14が接続凹部22内に突出するようになっている。被ロック部23は、接続凹部22の上方に形成され挿入方向X奥側に開口する凹部である。被ロック部23の上壁には、被ロック部23内に挿入されたロックアーム42の後述するロック突起42a(図1にのみ図示)が嵌るロック孔23a(図1にのみ図示)が、上下方向Zに貫通するように形成されている。 The connection concave portion 22 is a concave portion that opens to the rear side in the insertion direction X. As shown in FIG. A through-hole 22a communicating with the male terminal accommodating chamber 21 is formed in the wall portion of the connection recess 22 on the front side in the insertion direction X so as to penetrate in the insertion direction X. As shown in FIG. When the male terminal 10 is inserted into the male terminal receiving chamber 21, the tab 14 protrudes into the connection recess 22 through the through hole 22a. The locked portion 23 is a recess that is formed above the connection recess 22 and opens to the back side in the insertion direction X. As shown in FIG. A lock hole 23a (shown only in FIG. 1) into which a later-described lock projection 42a (shown only in FIG. 1) of a lock arm 42 inserted into the locked portion 23 fits is formed in the upper wall of the locked portion 23. It is formed so as to penetrate in the direction Z.

雌コネクタ2は、一の電線W1と異なる他の電線W2の挿入方向X手前側の端部に設けられる電子部品である。この雌コネクタ2は、雌端子30と、雌端子30を収容する雌ハウジング40と、を備えて構成されている。雌端子30は、図4に示すように、挿入方向Xの奥から手前に向かって、被覆加締め部31と、芯線加締め部32と、端子接続部33と、を備えて構成されている。電線W2は、図4に示すように、被覆W21と、芯線W22と、を備えて構成されている。芯線W22は、被覆W21で覆われおり、電線W2の挿入方向X手前側の端部では、被覆W21の一部が切除され、芯線W22が露出している。雌端子30は、電線W2の挿入方向X手前側の端部に接続されており、被覆W21が、被覆加締め部31に加締められることで、雌端子30と電線W2の保持力が確保されており、また、芯線W22が、芯線加締め部32に加締められることで、雌端子30と電線W2が、電気的に接続している。 The female connector 2 is an electronic component provided at the front end portion in the insertion direction X of another electric wire W2 different from the one electric wire W1. The female connector 2 includes female terminals 30 and a female housing 40 that accommodates the female terminals 30 . As shown in FIG. 4 , the female terminal 30 includes a sheath crimping portion 31 , a core wire crimping portion 32 , and a terminal connection portion 33 from the back to the front in the insertion direction X. . As shown in FIG. 4, the electric wire W2 includes a coating W21 and a core wire W22. The core wire W22 is covered with a coating W21, and the core wire W22 is exposed at the front end portion of the electric wire W2 in the insertion direction X by removing part of the coating W21. The female terminal 30 is connected to the front end of the wire W2 in the insertion direction X, and the covering W21 is crimped to the covering crimping portion 31 to secure the holding force between the female terminal 30 and the wire W2. Further, the core wire W22 is crimped by the core wire crimping portion 32, so that the female terminal 30 and the wire W2 are electrically connected.

端子接続部33には、雄端子10のタブ14が挿入方向Xに挿入される。この端子接続部33は、挿入方向Xに延びる底壁33Aと、底壁33Aの左右方向Y両縁部から上方に立ち上がる右側壁33B1(側壁)及び左側壁33B2(側壁)と、右側壁33B1及び左側壁33B2の上縁部に設置される天壁33Cと、で角筒状に形成されている。この端子接続部33は、右側壁33B1の内壁面から左側壁33B2の内壁面までの左右方向Yの寸法が、タブ14の左右方向Yの寸法よりも大きく形成されている。また、底壁33Aの内壁面から天壁33Cの内壁面までの上下方向Zの寸法が、タブ14の上下方向Zの寸法よりも大きく形成されている。端子接続部33の底壁33Aには、後述するランス41a(図2にのみ図示)が嵌まり込む係止孔33A1(図2にのみ図示)が上下方向Zに貫通するように形成されている。 The tab 14 of the male terminal 10 is inserted in the insertion direction X into the terminal connection portion 33 . The terminal connection portion 33 includes a bottom wall 33A extending in the insertion direction X, a right side wall 33B1 (side wall) and a left side wall 33B2 (side wall) rising upward from both left and right direction Y edges of the bottom wall 33A, a right side wall 33B1 and a left side wall 33B2 (side wall). Together with the top wall 33C installed at the upper edge of the left side wall 33B2, the shape is formed into a square tube shape. The terminal connection portion 33 is formed so that the dimension in the lateral direction Y from the inner wall surface of the right side wall 33B1 to the inner wall surface of the left side wall 33B2 is larger than the dimension in the lateral direction Y of the tab 14 . Also, the dimension in the vertical direction Z from the inner wall surface of the bottom wall 33A to the inner wall surface of the top wall 33C is formed larger than the dimension in the vertical direction Z of the tab 14 . A locking hole 33A1 (shown only in FIG. 2) into which a locking lance 41a (shown only in FIG. 2) is fitted is formed in the bottom wall 33A of the terminal connection portion 33 so as to penetrate in the vertical direction Z. .

雌ハウジング40は、図2に示すように、箱状に形成されている。この雌ハウジング40は、電線W2及び端子接続部33を収容する雌端子収容室41と、雌端子収容室41の上方に設けられ、雄ハウジング20の被ロック部23に挿入されるロックアーム42と、を備えて構成されている。雌端子収容室41は、雌ハウジング40内で挿入方向Xに延びるように形成されている。この雌端子収容室41は、挿入方向X手前側及び奥側がそれぞれ外部に通じる開口を有している。この開口のうち挿入方向X手前側の開口は、上述の貫通孔22aと対応する位置に形成されており、雌コネクタ2と雄コネクタ1が嵌合した状態では、当該開口及び貫通孔22aを介して雌端子収容室41と雄端子収容室21が連通するようになっている。 The female housing 40 is shaped like a box, as shown in FIG. The female housing 40 includes a female terminal accommodating chamber 41 that accommodates the electric wire W2 and the terminal connecting portion 33, and a lock arm 42 that is provided above the female terminal accommodating chamber 41 and inserted into the locked portion 23 of the male housing 20. , is configured with The female terminal receiving chamber 41 is formed to extend in the insertion direction X within the female housing 40 . The female terminal receiving chamber 41 has openings leading to the outside on the front side and the back side in the insertion direction X, respectively. Of these openings, the opening on the front side in the insertion direction X is formed at a position corresponding to the above-described through hole 22a. The female terminal accommodating chamber 41 and the male terminal accommodating chamber 21 are communicated with each other.

雌端子収容室41には、挿入方向X奥側の開口から挿入方向X手前側に向けて、端子接続部33、芯線加締め部32、被覆加締め部31の順で雌端子30が挿入されるようになっている。雌端子収容室41の底壁には、上下方向Z下側に弾性変形可能なランス41aが雌端子収容室41内に向けて立ち上がるように形成されている。このランス41aは、雌端子収容室41に収容された端子接続部33を固定するためのものである。雌端子収容室41に雌端子30が挿入される際には、ランス41aは、雌端子30に押されて上下方向Z下側に弾性変形し、雌端子30の挿入が完了すると、上述の端子接続部33の係止孔33A1に嵌まり込むように復元するようになっている。このランス41aの係止孔33A1への嵌まり込みによって、雌端子30が雌ハウジング40に固定されるようになっている。 The female terminal 30 is inserted into the female terminal housing chamber 41 in the order of the terminal connecting portion 33, the core wire crimping portion 32, and the coating crimping portion 31 from the opening on the back side in the insertion direction X toward the front side in the insertion direction X. It has become so. A lance 41 a that is elastically deformable downward in the vertical direction Z is formed on the bottom wall of the female terminal accommodating chamber 41 so as to rise toward the inside of the female terminal accommodating chamber 41 . The lance 41a is for fixing the terminal connecting portion 33 housed in the female terminal housing chamber 41. As shown in FIG. When the female terminal 30 is inserted into the female terminal receiving chamber 41, the lance 41a is pushed by the female terminal 30 and elastically deformed downward in the vertical direction Z. When the insertion of the female terminal 30 is completed, the above-mentioned terminal It is designed to be restored so as to be fitted into the locking hole 33A1 of the connecting portion 33. As shown in FIG. The female terminal 30 is fixed to the female housing 40 by fitting the lance 41a into the locking hole 33A1.

ロックアーム42は、雄ハウジング20の被ロック部23に挿入される。このロックアーム42は、挿入方向Xに延びるように棒状に形成されている。ロックアーム42の挿入方向X奥側の端部は、上下方向Z下側に弾性変形するようになっており、上方に突出する爪状のロック突起42aが形成されている。ロック突起42aは、被ロック部23に形成された上述のロック孔23aに嵌まり込む突起である。被ロック部23にロックアーム42が挿入される際には、ロック突起42aが被ロック部23の内壁面に当接することでロックアーム42の挿入方向X奥側の端部が上下方向Z下側に弾性変形し、ロックアーム42の挿入が完了すると、ロック突起42aがロック孔23aに嵌まり込むように復元するようになっている。このロック突起42aのロック孔23aへの嵌まり込みによって、雄ハウジング20と雌ハウジング40とが接続固定されるようになっている。 The lock arm 42 is inserted into the locked portion 23 of the male housing 20 . This lock arm 42 is formed in a bar shape so as to extend in the insertion direction X. As shown in FIG. The end portion of the locking arm 42 on the far side in the insertion direction X is elastically deformed downward in the vertical direction Z, and has a claw-like locking projection 42a projecting upward. The lock projection 42a is a projection that fits into the above-described lock hole 23a formed in the locked portion 23. As shown in FIG. When the lock arm 42 is inserted into the locked portion 23, the locking projection 42a abuts against the inner wall surface of the locked portion 23, so that the end portion of the lock arm 42 on the back side in the insertion direction X moves downward in the vertical direction Z. When the lock arm 42 is completely inserted, the lock protrusion 42a is restored so as to fit into the lock hole 23a. By fitting the lock projection 42a into the lock hole 23a, the male housing 20 and the female housing 40 are connected and fixed.

次に、雌端子30における端子接続部33の内部構造の詳細について説明する。図5は、雌端子30を挿入方向X手前側から見た正面図である。端子接続部33の底壁33Aには、主バネ50が設けられている。主バネ50は、端子接続部33内に挿入されたタブ14を上下方向Z下側から上側に向けて押圧する弾性部材である。この主バネ50は、底壁33Aの挿入方向X手前側の縁部に連続し、当該縁部から挿入方向X奥側に折り返され、同方向斜め上に向けて端子接続部33の内方に延びる板状の弾性片で構成されている。主バネ50は、底壁33Aの挿入方向X手前側の端部を支点として、挿入方向X奥側の端部が上下方向Z下側に弾性変形するように設けられている。 Next, the details of the internal structure of the terminal connection portion 33 of the female terminal 30 will be described. FIG. 5 is a front view of the female terminal 30 viewed from the front side in the insertion direction X. FIG. A main spring 50 is provided on the bottom wall 33</b>A of the terminal connection portion 33 . The main spring 50 is an elastic member that presses the tab 14 inserted into the terminal connection portion 33 from the bottom to the top in the vertical direction Z. As shown in FIG. The main spring 50 continues to the front edge in the insertion direction X of the bottom wall 33A, is folded back in the insertion direction X from the edge, and extends diagonally upward in the same direction toward the inside of the terminal connection portion 33. It is composed of an elongated plate-like elastic piece. The main spring 50 is provided so that the end portion on the rear side in the insertion direction X is elastically deformed downward in the vertical direction Z with the end portion on the front side in the insertion direction X of the bottom wall 33A as a fulcrum.

主バネ50の左右方向Y中央部には、端子接続部33内方に向けて上下方向Z上側に突出する突起状の主接点部51が形成されている。この主接点部51は、端子接続部33内にあるタブ14の底壁面に接し、当該タブ14と電気的に接続される突起である。この主接点部51は、突出端部から天壁33Cの内壁面までの上下方向Zの寸法が、主バネ50が弾性変形する前の状態で、タブ14の上下方向Zの寸法よりも小さくなるように形成されている。端子接続部33の天壁33Cには、端子接続部33内方に向けて上下方向Z下側に突出する第一突起60及び第二突起61が形成されている。この第一突起60及び第二突起61は、端子接続部33にあるタブ14の上壁面に接する突起である。第一突起60及び第二突起61は、端子接続部33の左右方向Y中央部を通って上下方向Zに延びる仮想線を基準として線対称となるように、互いに左右方向Yに間隔をあけて配置されている。この位置関係により、上述の主接点部51は、挿入方向Xから見た正面視で、左右方向Yにおける第一突起60と第二突起61との間に配置されるようになっている。 A projecting main contact portion 51 projecting upward in the vertical direction Z toward the inner side of the terminal connection portion 33 is formed at the central portion in the horizontal direction Y of the main spring 50 . The main contact portion 51 is a protrusion that contacts the bottom wall surface of the tab 14 in the terminal connection portion 33 and is electrically connected to the tab 14 . In the main contact portion 51, the dimension in the vertical direction Z from the projecting end portion to the inner wall surface of the top wall 33C is smaller than the dimension in the vertical direction Z of the tab 14 before the main spring 50 is elastically deformed. is formed as A ceiling wall 33</b>C of the terminal connection portion 33 is formed with a first projection 60 and a second projection 61 projecting downward in the vertical direction Z toward the inside of the terminal connection portion 33 . The first projection 60 and the second projection 61 are projections that come into contact with the upper wall surface of the tab 14 on the terminal connection portion 33 . The first projection 60 and the second projection 61 are spaced apart in the horizontal direction Y so as to be line symmetric with respect to an imaginary line extending in the vertical direction Z through the center of the terminal connection portion 33 in the horizontal direction Y. are placed. Due to this positional relationship, the main contact portion 51 described above is arranged between the first projection 60 and the second projection 61 in the left-right direction Y when viewed from the front in the insertion direction X. As shown in FIG.

端子接続部33の右側壁33B1には、弾性部70が設けられている。この弾性部70は、端子接続部33内に挿入されたタブ14を左右方向Y右側から左側に向けて押圧する弾性部材である。この弾性部70は、図4に示すように、右側壁33B1の一部を、挿入方向X手前側に凸のU字状に切り欠き、その切り欠いた部分の内側の部分を、挿入方向X奥側を支点として内方に起こして形成される板状の弾性片で構成されている。すなわち、弾性部70は、右側壁33B1から端子接続部33の内方に向けて左右方向Yに立ち上がる弾性片で構成されている。弾性部70は、挿入方向X奥側の端部を支点として、挿入方向X手前側の端部が左右方向Y右側(外方)に弾性変形可能に設けられている。図5及び図6に示すように、弾性部70の挿入方向X手前側の端部は、左右方向Y左側に湾曲するように形成されており、この湾曲した部分の頂部は、第一接触部71を構成している。この第一接触部71は、端子接続部33内に挿入されたタブ14の右側壁面に接触可能に設けられている。 An elastic portion 70 is provided on the right side wall 33B1 of the terminal connection portion 33 . The elastic portion 70 is an elastic member that presses the tab 14 inserted into the terminal connection portion 33 from right to left in the horizontal direction Y. As shown in FIG. As shown in FIG. 4, the elastic portion 70 is formed by cutting a portion of the right side wall 33B1 into a convex U shape toward the front side in the insertion direction X, and extending the inner portion of the cutout portion toward the front side in the insertion direction X. It is composed of a plate-like elastic piece that is raised inward with the back side as a fulcrum. That is, the elastic portion 70 is composed of an elastic piece that rises in the left-right direction Y toward the inside of the terminal connection portion 33 from the right side wall 33B1. The elastic portion 70 is provided so that the end portion on the front side in the insertion direction X is elastically deformable to the right side (outward) in the left-right direction Y with the end portion on the rear side in the insertion direction X serving as a fulcrum. As shown in FIGS. 5 and 6, the end portion of the elastic portion 70 on the front side in the insertion direction X is formed to be curved leftward in the horizontal direction Y, and the top portion of this curved portion is the first contact portion. 71. The first contact portion 71 is provided so as to be in contact with the right wall surface of the tab 14 inserted into the terminal connection portion 33 .

端子接続部33の左側壁33B2には、支持部80が設けられている。この支持部80は、弾性部70に押圧されて左右方向Y左側に移動しようとするタブ14を受け止める部分である。この支持部80は、左側壁33B2の内壁面から左右方向Y右側に膨らみ出すようにして挿入方向Xに沿って形成されている。支持部80には、第二接触部81と、第三接触部82と、弧状面83と、が設けられている。第二接触部81と第三接触部82は、端子接続部33内にあるタブ14の左側壁面に接触可能に設けられた部分である。この第二接触部81及び第三接触部82は、上述の第一接触部71を通って左右方向Yに延びる仮想線を基準として線対称となるよう、互いに挿入方向Xに間隔をあけて設けられ、それぞれが左右方向Y右側(内方)に突出するように形成されている。この位置関係により、上述の第一接触部71は、上方から見た平面視で、挿入方向Xにおける第二接触部81と第三接触部82との間に配置されるようになっている。なお、第一接触部71から第二接触部81までの左右方向Yの寸法及び、第一接触部71から第三接触部82までの左右方向Yの寸法は、弾性部70が弾性変形する前の状態でタブ14の左右方向Yの寸法よりも小さくなるように設定されている。 A support portion 80 is provided on the left side wall 33B2 of the terminal connection portion 33 . The support portion 80 is a portion that receives the tab 14 that is pressed by the elastic portion 70 and tries to move leftward in the left-right direction Y. As shown in FIG. The support portion 80 is formed along the insertion direction X so as to protrude rightward in the left-right direction Y from the inner wall surface of the left side wall 33B2. The support portion 80 is provided with a second contact portion 81 , a third contact portion 82 and an arcuate surface 83 . The second contact portion 81 and the third contact portion 82 are portions provided so as to come into contact with the left wall surface of the tab 14 in the terminal connection portion 33 . The second contact portion 81 and the third contact portion 82 are spaced apart from each other in the insertion direction X so as to be line symmetric with respect to a virtual line extending in the horizontal direction Y through the first contact portion 71. Each of them is formed to protrude rightward (inward) in the left-right direction Y. As shown in FIG. Due to this positional relationship, the above-described first contact portion 71 is arranged between the second contact portion 81 and the third contact portion 82 in the insertion direction X when viewed from above. Note that the dimension in the left-right direction Y from the first contact portion 71 to the second contact portion 81 and the dimension in the left-right direction Y from the first contact portion 71 to the third contact portion 82 are the same as before the elastic portion 70 is elastically deformed. is set to be smaller than the dimension in the left-right direction Y of the tab 14 in the state of .

弧状面83は、第二接触部81と第三接触部82との間に設けられる面である。この弧状面83は、挿入方向X中央部が、上方から見て左右方向Y左側(外方)に湾曲するように形成されている。この弧状面83は、挿入方向Xに移動するタブ14の左角部14aが摺接するように設けられている。 The arcuate surface 83 is a surface provided between the second contact portion 81 and the third contact portion 82 . The arcuate surface 83 is formed such that the central portion in the insertion direction X curves leftward in the left-right direction Y (outward) when viewed from above. This arcuate surface 83 is provided so that the left corner portion 14a of the tab 14 that moves in the insertion direction X is in sliding contact therewith.

雄コネクタ1と雌コネクタ2の接続について説明する。雄コネクタ1と雌コネクタ2を接続する際には、まず、挿入方向X手前側に雄コネクタ1を配置し、挿入方向X奥側に雌コネクタ2を配置する。このとき、雄ハウジング20の接続凹部22と、雌端子30の端子接続部33とが、挿入方向Xに対向するようにする。そして、雄コネクタ1及び雌コネクタ2を挿入方向Xに互いに接近させていく。そうすると、雌ハウジング40の雌端子収容室41外壁部分が接続凹部22に挿入されていくとともに、ロックアーム42が被ロック部23に挿入されていく。また、この際、雄端子10のタブ14は、端子接続部33に対して挿入方向X奥側に挿入されていく。 Connection between the male connector 1 and the female connector 2 will be described. When connecting the male connector 1 and the female connector 2, first, the male connector 1 is arranged on the front side in the insertion direction X, and the female connector 2 is arranged on the back side in the insertion direction X. At this time, the connection recess 22 of the male housing 20 and the terminal connection portion 33 of the female terminal 30 are arranged to face each other in the insertion direction X. As shown in FIG. Then, the male connector 1 and the female connector 2 are brought closer to each other in the insertion direction X. As shown in FIG. Then, the outer wall portion of the female terminal accommodating chamber 41 of the female housing 40 is inserted into the connection recess 22 and the lock arm 42 is inserted into the locked portion 23 . Also, at this time, the tab 14 of the male terminal 10 is inserted into the terminal connection portion 33 toward the back side in the insertion direction X. As shown in FIG.

そして、この挿入が完了すると、タブ14の上壁面が第一突起60及び第二突起61に接し、タブ14の底壁面が主接点部51に接する。また、タブ14の右側壁面が第一接触部71に接し、タブ14の左側壁面が第二接触部81及び第三接触部82に接する。このようにして、タブ14が端子接続部33内に保持され、雄端子10と、雌端子30とが、電気的及び機械的に接続される。また、タブ14の挿入が完了する際には、上述のようにロックアーム42のロック突起42aが被ロック部23のロック孔23aに嵌りこむことで雄ハウジング20と雌ハウジング40とが機械的に固定される。 When this insertion is completed, the top wall surface of the tab 14 contacts the first protrusion 60 and the second protrusion 61 , and the bottom wall surface of the tab 14 contacts the main contact portion 51 . Also, the right wall surface of the tab 14 contacts the first contact portion 71 , and the left wall surface of the tab 14 contacts the second contact portion 81 and the third contact portion 82 . In this manner, the tab 14 is held within the terminal connection portion 33, and the male terminal 10 and the female terminal 30 are electrically and mechanically connected. When the insertion of the tab 14 is completed, the locking projection 42a of the locking arm 42 is fitted into the locking hole 23a of the locked portion 23 as described above, thereby mechanically connecting the male housing 20 and the female housing 40 together. Fixed.

次に、タブ14が、端子接続部33内に挿入される際の様子を図7~図9を用いて詳細に説明する。まず、図7に示すように、タブ14が端子接続部33内に挿入されると、タブ14の右側壁面が弾性部70の第一接触部71に当接する。挿入前の状態では、第一接触部71から第二接触部81までの左右方向Yの寸法は、上述のようにタブ14の左右方向Yの寸法よりも小さい。このため、そのままタブ14を挿入方向Xに移動させると、第一接触部71が左右方向Y右側に押されて弾性部70が同方向に弾性変形する。これにより、図7の矢印Aで示すように弾性部70が復元しようとする復元力が発生し、この復元力でタブ14が左右方向Y左側に押圧される。 Next, how the tab 14 is inserted into the terminal connection portion 33 will be described in detail with reference to FIGS. 7 to 9. FIG. First, as shown in FIG. 7 , when the tab 14 is inserted into the terminal connection portion 33 , the right wall surface of the tab 14 contacts the first contact portion 71 of the elastic portion 70 . Before insertion, the dimension in the horizontal direction Y from the first contact portion 71 to the second contact portion 81 is smaller than the dimension in the horizontal direction Y of the tab 14 as described above. Therefore, when the tab 14 is moved in the insertion direction X as it is, the first contact portion 71 is pushed rightward in the horizontal direction Y, and the elastic portion 70 is elastically deformed in the same direction. As a result, as indicated by arrow A in FIG. 7, a restoring force is generated with which the elastic portion 70 attempts to restore itself, and this restoring force presses the tab 14 leftward in the left-right direction Y. As shown in FIG.

さらに、タブ14を挿入方向X奥側に移動させると、タブ14の左角部14aが弧状面83に当接するようになる。この状態でも、上述の復元力によってタブ14は左右方向Y左側に押圧されているので、タブ14がさらに挿入方向X奥側に進む際には、弧状面83にタブ14が摺接することとなる。そして、弧状面83は、上述のように左右方向Y左側(外方)に湾曲しているので、タブ14の挿入方向X奥側の先端部が、図7の矢印Bで示すように挿入方向Xに対して弧状面83側に傾くこととなる。この傾きにより、弾性部70の弾性変形の割合が相対的に小さくなることで、弾性部70の復元力は弱まるものの、タブ14は、引き続き左右方向Y左側に押し付けられながら挿入方向X奥側に進んでいく。 Further, when the tab 14 is moved further in the insertion direction X, the left corner portion 14 a of the tab 14 comes into contact with the arcuate surface 83 . Even in this state, the tab 14 is pressed leftward in the horizontal direction Y by the restoring force described above, so that when the tab 14 further advances in the insertion direction X, the tab 14 comes into sliding contact with the arcuate surface 83 . . Since the arcuate surface 83 is curved leftward (outward) in the left-right direction Y as described above, the distal end portion of the tab 14 on the far side in the insertion direction X is oriented in the insertion direction as indicated by the arrow B in FIG. It inclines toward the arcuate surface 83 with respect to X. Due to this inclination, the rate of elastic deformation of the elastic portion 70 becomes relatively small, and the restoring force of the elastic portion 70 is weakened. move on.

そして、タブ14の左側壁面が第三接触部82に接するまで挿入されると、当該挿入は完了する。この状態では、上述の復元力によって、タブ14は、左右方向Y左側に押圧され、第二接触部81及び第三接触部82に押し付けられることとなる。このため、図8の矢印Cで示すような、タブ14の左右方向Yの変位が抑制される。そして、当該変位の抑制により、図9の矢印Dで示すような、主接点部51に対するタブ14の摺動及びタブ14の摩耗が抑制される。 When the tab 14 is inserted until the left wall surface of the tab 14 touches the third contact portion 82, the insertion is completed. In this state, the tab 14 is pressed leftward in the left-right direction Y by the restoring force described above, and pressed against the second contact portion 81 and the third contact portion 82 . Therefore, displacement of the tab 14 in the left-right direction Y as indicated by arrow C in FIG. 8 is suppressed. Suppression of the displacement suppresses sliding of the tab 14 with respect to the main contact portion 51 and abrasion of the tab 14 as indicated by arrow D in FIG.

一方、図示はしないが、タブ14が端子接続部33に挿入される際には、タブ14の上壁面が第一突起60及び第二突起61に当接するとともに、タブ14の下壁面が主バネ50の主接点部51に当接する。挿入前の状態では、主接点部51の突出端部から天壁33Cの内壁面までの上下方向Zの寸法は、上述のようにタブ14の上下方向Zの寸法よりも小さい。このため、タブ14をそのまま挿入方向X奥側に移動させると、主接点部51は上下方向Z下側に押されて同方向に弾性変形する。これにより、主バネ50が復元しようとする復元力が発生し、この復元力でタブ14が上下方向Z上側に押圧されることとなる。この状態では、タブ14の上下方向Zの変位が抑制される。なお、タブ14を端子接続部33から引き抜く際には、タブ14を挿入方向X手前側に移動させればよい。 On the other hand, although not shown, when the tab 14 is inserted into the terminal connection portion 33, the upper wall surface of the tab 14 abuts against the first protrusion 60 and the second protrusion 61, and the lower wall surface of the tab 14 contacts the main spring. It abuts on the main contact portion 51 of 50 . Before insertion, the dimension in the vertical direction Z from the projecting end of the main contact portion 51 to the inner wall surface of the top wall 33C is smaller than the dimension in the vertical direction Z of the tab 14 as described above. For this reason, when the tab 14 is moved to the insertion direction X back side as it is, the main contact portion 51 is pushed downward in the up-down direction Z and elastically deforms in the same direction. As a result, a restoring force is generated with which the main spring 50 tries to restore, and this restoring force presses the tab 14 upward in the vertical direction Z. As shown in FIG. In this state, displacement of the tab 14 in the vertical direction Z is suppressed. When pulling out the tab 14 from the terminal connection portion 33, the tab 14 may be moved forward in the insertion direction X. As shown in FIG.

上述した実施の形態によれば、端子接続構造100は、平板状のタブ14を備える雄端子10と、タブ14の挿入方向Xに延び同方向にタブ14が挿入される筒状の端子接続部33を備える雌端子30と、の接続構造であって、端子接続部33における右側壁33B1に設けられ左右方向Y右側(外方)に弾性変形可能な弾性部70と、端子接続部33における左側壁33B2に設けられる支持部80と、を備え、弾性部70には、タブ14の右側壁面に接触可能な第一接触部71が設けられ、支持部80には、端子接続部33の内方に突出してタブ14の左側壁面に接触可能な第二接触部81及び第三接触部82が、互いに挿入方向Xに間隔をあけて設けられ、第一接触部71は、挿入方向Xにおける第二接触部81と第三接触部82との間に配置されていることを特徴とする。 According to the above-described embodiment, the terminal connection structure 100 includes the male terminal 10 having the flat tab 14 and the tubular terminal connection portion extending in the insertion direction X of the tab 14 and into which the tab 14 is inserted in the same direction. 33, an elastic portion 70 provided on the right side wall 33B1 of the terminal connection portion 33 and elastically deformable to the right side (outward) in the left-right direction Y, and the left side of the terminal connection portion 33 a support portion 80 provided on the wall 33B2; the elastic portion 70 is provided with a first contact portion 71 capable of contacting the right side wall surface of the tab 14; A second contact portion 81 and a third contact portion 82 that protrude outward and can come into contact with the left wall surface of the tab 14 are provided at intervals in the insertion direction X, and the first contact portion 71 is the second It is characterized by being arranged between the contact portion 81 and the third contact portion 82 .

このような本実施の形態によれば、端子接続部33内に挿入されたタブ14は、第一接触部71、第二接触部81、及び第三接触部82によって、左右方向Yに3点で支持されることとなる。この際、弾性部70は、端子接続部33の左右方向Y右側(外方)に弾性変形していることから、タブ14は、当該弾性部70の復元力によって、左右方向Y左側に押圧されることとなる。そして、第一接触部71は、挿入方向Xにおける第二接触部81と第三接触部82との間に配置されていることから、タブ14に加わる上述の復元力は、第二接触部81と第三接触部82に対して偏りなく伝わることとなる。このため、タブ14は、第二接触部81と第三接触部82のそれぞれに押し付けられて固定され、左右方向Yへの変位が抑制される。この変位の抑制により、タブ14を端子接続部33内で安定して保持することができる。また、本構成によれば、弾性変形可能な弾性部70は、左右方向Yの一方に設けられているだけである。よって、従来のように、弾性片が左右方向Yの2点に設けられている構成と比較して、互いに接続された雄端子10及び雌端子30の接続部分に幅方向の外力が加わった場合のタブ14の左右方向Yの変位を抑制することができる。そして、タブ14の変位の抑制により、端子接続部33内における摩耗紛の発生を抑制することができるので、端子接続構造100における電気的な接続の安定性を確保することができる。 According to this embodiment, the tab 14 inserted into the terminal connection portion 33 is moved in the left-right direction Y at three points by the first contact portion 71, the second contact portion 81, and the third contact portion 82. will be supported by At this time, since the elastic portion 70 is elastically deformed to the right (outward) in the horizontal direction Y of the terminal connection portion 33 , the tab 14 is pressed leftward in the horizontal direction Y by the restoring force of the elastic portion 70 . The Rukoto. Since the first contact portion 71 is arranged between the second contact portion 81 and the third contact portion 82 in the insertion direction X, the restoring force applied to the tab 14 is is transmitted to the third contact portion 82 without bias. Therefore, the tab 14 is pressed against and fixed to each of the second contact portion 81 and the third contact portion 82, and displacement in the horizontal direction Y is suppressed. By suppressing this displacement, the tab 14 can be stably held within the terminal connection portion 33 . Moreover, according to this configuration, the elastic portion 70 that can be elastically deformed is provided only on one side in the left-right direction Y. As shown in FIG. Therefore, compared to the conventional configuration in which the elastic pieces are provided at two points in the horizontal direction Y, when an external force in the width direction is applied to the connecting portion of the male terminal 10 and the female terminal 30 connected to each other, , the displacement of the tab 14 in the left-right direction Y can be suppressed. By suppressing the displacement of the tab 14, it is possible to suppress the generation of abrasion powder in the terminal connection portion 33, so that the stability of the electrical connection in the terminal connection structure 100 can be ensured.

また、本実施の形態によれば、端子接続部33の右側壁33B1から端子接続部33の内方に向けて左右方向Yに立ち上がる弾性片、という簡易な構成で弾性部70を構成することができるので、雌端子30の構成を簡易な構成とすることができる。 In addition, according to the present embodiment, the elastic portion 70 can be configured with a simple configuration of an elastic piece that rises from the right side wall 33B1 of the terminal connection portion 33 toward the inside of the terminal connection portion 33 in the left-right direction Y. Therefore, the configuration of the female terminal 30 can be simplified.

また、本実施の形態によれば、支持部80の第二接触部81と第三接触部82との間には、左右方向Y左側(外方)に湾曲する面である弧状面83が設けられている。この弧状面83には、挿入方向Xに移動するタブ14の先端部の左角部14aが摺接するようになっており、この左角部14aが弧状面83に摺接した状態では、タブ14の先端部が挿入方向Xに対して弧状面83側(左右方向Y左側)に傾くようになっている。このため、タブ14が端子接続部33に挿入される際には、当該先端部の傾きの分、弧状面83がない構成と比較して弾性部70が弾性変形する割合が少なくなる。これにより、弾性部70の復元力が弱まり、タブ14を支持部80に押し付ける力が弱まることとなる。したがって、タブ14が挿入方向Xに進む際の抵抗を小さくすることができ、当該タブ14を端子接続部33に対して、少ない力でスムーズに抜き挿しすることができる。 Further, according to the present embodiment, between the second contact portion 81 and the third contact portion 82 of the support portion 80, an arcuate surface 83, which is a surface curved leftward (outward) in the left-right direction Y, is provided. It is The left corner portion 14a of the distal end portion of the tab 14 that moves in the insertion direction X is in sliding contact with the arc-shaped surface 83. When the left corner portion 14a is in sliding contact with the arc-shaped surface 83, the tab 14 is inclined toward the arcuate surface 83 (to the left in the left-right direction Y) with respect to the insertion direction X. As shown in FIG. For this reason, when the tab 14 is inserted into the terminal connection portion 33 , the elastic portion 70 is elastically deformed less than the configuration without the arc-shaped surface 83 due to the inclination of the tip portion. As a result, the restoring force of the elastic portion 70 is weakened, and the force pressing the tab 14 against the support portion 80 is weakened. Therefore, resistance when the tab 14 advances in the insertion direction X can be reduced, and the tab 14 can be smoothly inserted into and removed from the terminal connection portion 33 with a small force.

以上、本発明の一実施の形態について図面を参照して詳述してきたが、具体的な構成はこれらの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等があっても本発明に含まれる。例えば、本実施の形態では、端子接続部33の右側壁33B1に弾性部70を設け、端子接続部33の左側壁33B2に支持部80を設けたが、弾性部70と支持部80の配置は、左右逆でもいい。すなわち、端子接続部33の左側壁33B2に弾性部70を設け、端子接続部33の右側壁33B1に支持部80を設けてもよい。この場合は、タブ14の端子接続部33への挿入時に、弧状面83にタブ14の先端部の右角部14bが摺接することとなるが、この場合も本実施の形態と同様の作用、効果を得ることができる。また、本実施の形態では、端子接続部33の底壁33Aに主バネ50を設け、端子接続部33の天壁33Cに第一突起60及び第二突起61を設けたが、主バネ50と、第一突起60及び第二突起61の配置は、上下逆でもいい。すなわち、端子接続部33の天壁33Cに主バネ50を設け、端子接続部33の底壁33Aに第一突起60及び第二突起61を設けてもよい。 As described above, one embodiment of the present invention has been described in detail with reference to the drawings. is included in the present invention. For example, in the present embodiment, the elastic portion 70 is provided on the right side wall 33B1 of the terminal connection portion 33, and the support portion 80 is provided on the left side wall 33B2 of the terminal connection portion 33. However, the arrangement of the elastic portion 70 and the support portion 80 is , left and right reversed. That is, the elastic portion 70 may be provided on the left side wall 33B2 of the terminal connection portion 33, and the support portion 80 may be provided on the right side wall 33B1 of the terminal connection portion 33. FIG. In this case, when the tab 14 is inserted into the terminal connection portion 33, the right corner portion 14b of the distal end portion of the tab 14 comes into sliding contact with the arcuate surface 83. In this case as well, the same functions and effects as in the present embodiment are obtained. can be obtained. In the present embodiment, the main spring 50 is provided on the bottom wall 33A of the terminal connection portion 33, and the first projection 60 and the second projection 61 are provided on the top wall 33C of the terminal connection portion 33. , the arrangement of the first protrusion 60 and the second protrusion 61 may be upside down. That is, the top wall 33C of the terminal connection portion 33 may be provided with the main spring 50, and the bottom wall 33A of the terminal connection portion 33 may be provided with the first protrusion 60 and the second protrusion 61. FIG.

また、本実施の形態では、弾性部70を形成する際に、右側壁33B1の一部を、挿入方向X手前側に凸のU字状に切り欠き、その切り欠いた部分の内側の部分を、挿入方向X奥側を支点として内方に起こして形成したが、当該形成の方法はこれに限られない。すなわち、右側壁33B1の一部を、挿入方向X奥側に凸のU字状に切り欠き、その切り欠いた部分の内側の部分を、挿入方向X手前側を支点として内方に起こして形成してもよい。また、弾性部70は、本実施の形態のように板状の弾性片で構成しなくてもよい。弾性部70は、端子接続部33内にあるタブ14が第一接触部71に接した状態で左右方向Yの外方に弾性変形する構成であればよい。 In addition, in the present embodiment, when forming the elastic portion 70, a portion of the right side wall 33B1 is notched in a U-shape protruding forward in the insertion direction X, and the inner portion of the notched portion is , and formed by raising them inward with the back side in the insertion direction X as a fulcrum, but the method of forming is not limited to this. That is, a portion of the right side wall 33B1 is cut out in a convex U shape toward the back side in the insertion direction X, and the inner portion of the cutout portion is raised inward with the front side in the insertion direction X as a fulcrum. You may Also, the elastic portion 70 does not have to be formed of a plate-like elastic piece as in the present embodiment. The elastic portion 70 may be configured to elastically deform outward in the horizontal direction Y while the tab 14 in the terminal connection portion 33 is in contact with the first contact portion 71 .

このような構成の変形は、主バネ50も同様である。すなわち、主バネ50は、底壁33Aの挿入方向X手前側の縁部に連続し、当該縁部から挿入方向X奥側に折り返され、同方向斜め上に向けて端子接続部33の内方に延びる板状の弾性片で構成しなくてもよい。主バネ50は、底壁33Aから挿入方向X手前側斜め上に向けて端子接続部33の内方に立ち上がる弾性片で構成してもよいし、弾性片以外の弾性部材で主バネ50に相当する部分を構成してもよい。主バネ50に相当する部分の構成は、端子接続部33内にあるタブ14が主接点部51に接した状態で上下方向Zの外方に弾性変形するものであればよい。さらに、本実施の形態では、端子接続部33を角筒状に形成したが、端子接続部33の形状は円筒状でもよい。 Such configuration variations are similar for the main spring 50 . That is, the main spring 50 continues to the front edge in the insertion direction X of the bottom wall 33A, is folded back in the insertion direction X from the edge, and extends diagonally upward in the same direction toward the inside of the terminal connection portion 33. It does not have to be composed of a plate-shaped elastic piece extending to the The main spring 50 may be composed of an elastic piece that rises up toward the inside of the terminal connection portion 33 from the bottom wall 33A toward the front side in the insertion direction X, or an elastic member other than the elastic piece that corresponds to the main spring 50. You may constitute the part which carries out. The structure of the portion corresponding to the main spring 50 may be such that the tab 14 in the terminal connection portion 33 is elastically deformed outward in the vertical direction Z while being in contact with the main contact portion 51 . Furthermore, in the present embodiment, the terminal connection portion 33 is formed in a rectangular tubular shape, but the shape of the terminal connection portion 33 may be cylindrical.

W1、W2 電線
X 挿入方向
Y 左右方向(幅方向)
10 雄端子
14 タブ(挿入片)
30 雌端子
33 端子接続部
70 弾性部
71 第一接触部
80 支持部
81 第二接触部
82 第三接触部
100 端子接続構造
W1, W2 Wire X Insertion direction Y Horizontal direction (width direction)
10 male terminal 14 tab (insertion piece)
30 female terminal 33 terminal connection portion 70 elastic portion 71 first contact portion 80 support portion 81 second contact portion 82 third contact portion 100 terminal connection structure

Claims (3)

平板状の挿入片を備える雄端子と、前記挿入片の挿入方向に延び同方向に前記挿入片が挿入される筒状の端子接続部を備える雌端子と、の端子接続構造であって、
前記端子接続部における前記挿入方向に交差する幅方向の一方に設けられ該幅方向の外方に弾性変形可能な弾性部と、
前記端子接続部における前記幅方向の他方に設けられる支持部と、を備え、
前記弾性部には、前記挿入片の前記幅方向一端側に接触可能な第一接触部が設けられ、
前記支持部には、前記端子接続部の内方に突出して前記挿入片の前記幅方向他端側に接触可能な第二接触部及び第三接触部が、互いに前記挿入方向に間隔をあけて設けられ、
前記第一接触部は、前記挿入方向における前記第二接触部と前記第三接触部との間に配置されていることを特徴とする端子接続構造。
A terminal connection structure for a male terminal having a flat plate-shaped insertion piece and a female terminal having a cylindrical terminal connection portion extending in an insertion direction of the insertion piece and into which the insertion piece is inserted in the same direction,
an elastic portion provided on one side of the terminal connection portion in a width direction intersecting the insertion direction and capable of being elastically deformed outward in the width direction;
a supporting portion provided on the other side of the terminal connecting portion in the width direction;
The elastic portion is provided with a first contact portion capable of contacting one end side of the insertion piece in the width direction,
The support portion has a second contact portion and a third contact portion that protrude inward from the terminal connection portion and are capable of contacting the other widthwise end side of the insertion piece, and are spaced apart from each other in the insertion direction. provided,
The terminal connection structure, wherein the first contact portion is arranged between the second contact portion and the third contact portion in the insertion direction.
前記弾性部は、前記端子接続部の前記幅方向一方側の壁部から前記端子接続部の内方に向けて立ち上がる弾性片で構成されていることを特徴とする請求項1に記載の端子接続構造。 2. The terminal connection according to claim 1, wherein the elastic portion comprises an elastic piece that rises inwardly of the terminal connection portion from the wall portion on one side in the width direction of the terminal connection portion. structure. 前記支持部の前記第二接触部と前記第三接触部との間には、前記幅方向外方に湾曲する面である弧状面が設けられ、
前記弧状面は、前記挿入方向に移動する前記挿入片の先端部の角部が摺接するように設けられていることを特徴とする請求項1又は2に記載の端子接続構造。
Between the second contact portion and the third contact portion of the support portion, an arcuate surface that is a surface that curves outward in the width direction is provided,
3. The terminal connection structure according to claim 1, wherein the arc-shaped surface is provided so that a corner portion of the tip portion of the insertion piece that moves in the insertion direction is in sliding contact.
JP2021128239A 2021-08-04 2021-08-04 Terminal connection structure Pending JP2023023061A (en)

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