JP6013123B2 - Positioning structure of female terminal fitting in connector housing - Google Patents

Positioning structure of female terminal fitting in connector housing Download PDF

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JP6013123B2
JP6013123B2 JP2012224348A JP2012224348A JP6013123B2 JP 6013123 B2 JP6013123 B2 JP 6013123B2 JP 2012224348 A JP2012224348 A JP 2012224348A JP 2012224348 A JP2012224348 A JP 2012224348A JP 6013123 B2 JP6013123 B2 JP 6013123B2
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terminal fitting
female terminal
covering
connector housing
crimping piece
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JP2014078345A (en
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近藤 弘紀
弘紀 近藤
全伸 大石
全伸 大石
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Yazaki Corp
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Description

本発明は、コネクタハウジング内における雌端子金具の位置決め構造に関する。   The present invention relates to a positioning structure for a female terminal fitting in a connector housing.

図6は、下記特許文献1に記載された雌端子金具である。
この雌端子金具110は、金属板のプレス成形品で、接続相手となる舌片状の雄端子金具120が嵌合する先端筒状部111と、この先端筒状部111の後方に連続して設けられた導体接続部112と、この導体接続部112の後方に連続して設けられた被覆固定部113と、を備えている。
FIG. 6 is a female terminal fitting described in Patent Document 1 below.
The female terminal fitting 110 is a press-molded product of a metal plate, and is continuously connected to the distal end tubular portion 111 into which the tongue-shaped male terminal fitting 120 to be connected is fitted, and behind the distal end tubular portion 111. The conductor connection part 112 provided and the covering fixing part 113 provided continuously behind the conductor connection part 112 are provided.

先端筒状部111は、舌片状の雄端子金具120が挿抜可能な角筒状で、筒内に、雄端子金具120を挟持するための板ばね115を備えている。板ばね115は、先端筒状部111の底壁111aに折り曲げ形成されたばね保持部116によって、保持されている。板ばね115は、先端筒状部111の上部壁111bに向かって凸に湾曲した板ばねで、先端筒状部111の上部壁111bとの間に雄端子金具120を挟持することで、先端筒状部111と雄端子金具120とを導通状態にする。   The distal end tubular portion 111 is a rectangular tube shape into which a tongue-shaped male terminal fitting 120 can be inserted and removed, and includes a leaf spring 115 for holding the male terminal fitting 120 in the cylinder. The leaf spring 115 is held by a spring holding portion 116 that is bent and formed on the bottom wall 111 a of the distal end tubular portion 111. The leaf spring 115 is a leaf spring that is convexly curved toward the upper wall 111b of the distal end tubular portion 111, and the male terminal fitting 120 is sandwiched between the upper end wall 111b of the distal end tubular portion 111, thereby allowing the distal end tube The shape portion 111 and the male terminal fitting 120 are brought into conduction.

導体接続部112は、先端筒状部111の底壁111aを延長した底壁部112aの両側部に、電線130の導体部131に加締め付ける導体加締め片112bを備える。導体接続部112は、導体加締め片112bの加締め付けにより、導体部131との導通接続を果たす。   The conductor connection portion 112 includes conductor crimping pieces 112b that are crimped to the conductor portion 131 of the electric wire 130 on both sides of the bottom wall portion 112a obtained by extending the bottom wall 111a of the distal end tubular portion 111. The conductor connecting portion 112 is electrically connected to the conductor portion 131 by crimping the conductor crimping piece 112b.

被覆固定部113は、導体接続部112の底壁部112aを延長した底壁部113aの両側部に、電線130の外被132の上に加締め付ける被覆加締め片113bを備える。被覆固定部113は、被覆加締め片113bの加締め付けにより、電線130の固定を果たす。   The covering fixing portion 113 includes covering crimping pieces 113b that are crimped onto the outer jacket 132 of the electric wire 130 on both sides of the bottom wall portion 113a obtained by extending the bottom wall portion 112a of the conductor connecting portion 112. The covering fixing portion 113 fixes the electric wire 130 by tightening the covering crimping piece 113b.

図7は、上記の雌端子金具110を収容したコネクタハウジング210の従来例を示している。コネクタハウジング210は、合成樹脂の射出成形品で、収容した雌端子金具110を、第1の基準位置当接部211と、第2の基準位置当接部212と、で位置決めする。   FIG. 7 shows a conventional example of a connector housing 210 that accommodates the female terminal fitting 110 described above. The connector housing 210 is a synthetic resin injection-molded product, and the received female terminal fitting 110 is positioned by the first reference position contact portion 211 and the second reference position contact portion 212.

第1の基準位置当接部211は、先端筒状部111の先端に設定された第1の位置決め基準位置P1に当接することで、雌端子金具110の先端位置を位置決めする。第1の位置決め基準位置P1は、先端筒状部111の先端に突出したばね保持部116の先端面である。   The first reference position contact portion 211 contacts the first positioning reference position P1 set at the tip of the tip cylindrical portion 111, thereby positioning the tip position of the female terminal fitting 110. The first positioning reference position P <b> 1 is the tip surface of the spring holding part 116 that protrudes from the tip of the tip cylindrical part 111.

第2の基準位置当接部212は、先端筒状部111の後端に設定された第2の位置決め基準位置P2に当接することで、先端筒状部111の後端位置を位置決めする。第2の位置決め基準位置P2は、先端筒状部111の上部壁111bの後端面である。   The second reference position contact portion 212 contacts the second positioning reference position P2 set at the rear end of the tip cylindrical portion 111, thereby positioning the rear end position of the tip cylindrical portion 111. The second positioning reference position P2 is the rear end surface of the upper wall 111b of the distal end tubular portion 111.

図7のコネクタハウジング210は、2つの基準位置当接部211,212を雌端子金具110に当接させることによって、雌端子金具110の軸線の傾きを規制する。   The connector housing 210 in FIG. 7 regulates the inclination of the axis of the female terminal fitting 110 by bringing the two reference position contact portions 211 and 212 into contact with the female terminal fitting 110.

特開平11−297392号公報JP 11-297392 A

ところで、車載のワイヤハーネスに使用されるコネクタハウジングは、小型化や軽量化が重要課題とされている。そして、コネクタハウジングの小型化には、該コネクタハウジングが収容する雌端子金具の軸方向長さを短縮することが極めて有効である。   By the way, miniaturization and weight reduction are regarded as important issues for connector housings used in vehicle-mounted wire harnesses. In order to reduce the size of the connector housing, it is extremely effective to reduce the axial length of the female terminal fitting accommodated in the connector housing.

ところが、従来の位置決め構造の場合は、雌端子金具110の雄端子金具120の長さを短縮すると、それに伴い、2つの基準位置当接部211,212を当接させるスパン(離間距離)も短縮されるため、雌端子金具110の傾きを規制する力が低下してしまう。その結果、雌端子金具110に発生する傾きが増加し、コネクタハウジング210を相手のコネクタハウジングに嵌合させた際に、端子金具同士の衝突(どつき)や嵌合不良等の不都合が発生するおそれがあった。   However, in the case of the conventional positioning structure, when the length of the male terminal fitting 120 of the female terminal fitting 110 is shortened, the span (separation distance) with which the two reference position abutting portions 211 and 212 abut is also shortened accordingly. Therefore, the force that regulates the inclination of the female terminal fitting 110 is reduced. As a result, the inclination generated in the female terminal fitting 110 increases, and when the connector housing 210 is fitted into the mating connector housing, inconveniences such as collision (dragging) between terminal fittings and poor fitting occur. There was a fear.

上記の理由から、現実的には、雌端子金具110の軸方向長さの短縮によってコネクタハウジング210を小型化することが難しいという問題があった。   For the above reasons, there has been a problem that it is difficult to downsize the connector housing 210 due to the shortening of the axial length of the female terminal fitting 110.

そこで、本発明の目的は、上記課題を解消することに係り、コネクタハウジング内における雌端子金具の傾きの増加を招くことなく、雌端子金具の軸方向長さの短縮によって端子金具やコネクタハウジングの小型化を図ることのできるコネクタハウジング内における雌端子金具の位置決め構造を提供することにある。   Therefore, an object of the present invention is to solve the above-mentioned problems, and without causing an increase in the inclination of the female terminal fitting in the connector housing, the axial length of the female terminal fitting can be reduced by reducing the axial length of the female fitting. An object of the present invention is to provide a female terminal fitting positioning structure in a connector housing which can be miniaturized.

本発明の前述した目的は、下記の構成により達成される。
(1) 雌端子金具を収容するコネクタハウジングには、前記雌端子金具上の軸方向に離間した2つの位置決め基準位置に当接する2つの基準位置当接部を備え、2つの前記基準位置当接部の当接により前記雌端子金具の傾きを規制するコネクタハウジング内における雌端子金具の位置決め構造であって、
前記雌端子金具は、接続相手となる雄端子金具が嵌合する先端筒状部と、電線の導体部に加締め付ける導体加締め片を備えると共に前記先端筒状部の後方に連続して設けられて、前記導体加締め片の加締め付けにより前記導体部との導通接続を果たす導体接続部と、
前記電線の外被の上に加締め付ける被覆加締め片を備えると共に前記導体接続部の後方に連続して設けられて、前記被覆加締め片の加締め付けにより前記電線の固定を果たす被覆固定部と、を備え、且つ、前記被覆固定部は、前記電線の断面積に応じて成形幅寸法を拡縮することで、前記被覆加締め片の加締め付けた後の成形高さ寸法が常に規定値に規制され、
前記コネクタハウジングには、2つの前記基準位置当接部として、前記先端筒状部の先端外周縁が当接する筒部先端当接部と、成形高さ寸法に規制された前記被覆加締め片の上端面が当接する固定部上面当接部と、を備え
前記被覆固定部の被覆加締め片は、成形高さ寸法に規制された前記上端面の幅方向中央部で内側に折り曲げられた先端折り曲げ部の先端面で前記電線を押圧することで、固定した前記電線の上端面位置を、成形高さ寸法の上端面位置から前記先端折り曲げ部の長さ分だけ下がった位置に設定しており、
前記固定部上面当接部に当接する前記被覆加締め片の上端面は、前記雌端子金具の挿入方向に沿って延在する平坦面であり、
前記固定部上面当接部には、前記被覆加締め片の後面が当接する係止突起が突設されており、前記被覆加締め片の上端面が当接する前記固定部上面当接部からの前記係止突起の突出高さは、前記被覆加締め片の板厚より大きく、且つ、前記被覆加締め片の前記先端折り曲げ部の長さ未満であることを特徴とするコネクタハウジング内における雌端子金具の位置決め構造。
The above-described object of the present invention is achieved by the following configuration.
(1) The connector housing that accommodates the female terminal fitting includes two reference position abutting portions that abut on two positioning reference positions that are spaced apart from each other in the axial direction on the female terminal fitting. A female terminal fitting positioning structure in a connector housing that regulates the inclination of the female terminal fitting by contact of a portion,
The female terminal fitting includes a distal end cylindrical portion to which a male terminal fitting as a connection partner is fitted, and a conductor crimping piece to be crimped to a conductor portion of an electric wire, and is provided continuously behind the distal end tubular portion. A conductor connecting portion that performs conductive connection with the conductor portion by crimping the conductor crimping piece;
A covering fixing portion provided with a covering crimping piece for crimping on the outer sheath of the electric wire and continuously provided behind the conductor connecting portion, and for fixing the electric wire by crimping the covering crimping piece; In addition, the covering fixing part expands or contracts the forming width dimension according to the cross-sectional area of the electric wire, so that the forming height dimension after crimping of the covering crimping piece is always regulated to a specified value. And
In the connector housing, as the two reference position abutting portions, there are a cylindrical portion tip abutting portion with which the outer peripheral edge of the tip cylindrical portion abuts, and the covering crimping piece regulated by a molding height dimension. A fixed portion upper surface abutting portion with which the upper end surface abuts ,
The covering crimping piece of the covering fixing portion is fixed by pressing the electric wire at the tip end surface of the tip bending portion that is bent inward at the center in the width direction of the upper end surface that is regulated by the molding height dimension. The upper end surface position of the electric wire is set to a position that is lowered from the upper end surface position of the molding height by the length of the bent end portion,
The upper end surface of the covering crimping piece that comes into contact with the fixed portion upper surface contact portion is a flat surface extending along the insertion direction of the female terminal fitting,
The fixing portion upper surface abutting portion is provided with a locking projection that abuts the rear surface of the covering crimping piece, and the upper end surface of the covering crimping piece contacts the fixing portion upper surface abutting portion. The female terminal in the connector housing is characterized in that a protruding height of the locking projection is larger than a plate thickness of the covering crimping piece and less than a length of the bent end portion of the covering crimping piece. Bracket positioning structure.

(2) 前記固定部上面当接部は、前記雌端子金具の挿入方向に沿って延出する弾性片によって提供されることを特徴とする上記(1)に記載のコネクタハウジング内における雌端子金具の位置決め構造。 (2) The female terminal fitting in the connector housing according to (1), wherein the fixed portion upper surface contact portion is provided by an elastic piece extending along an insertion direction of the female terminal fitting. Positioning structure.

上記(1)の構成によれば、コネクタハウジング内における雌端子金具の傾きの規制は、筒部先端当接部及び固定部上面当接部の2つの基準位置当接部によって、雌端子金具上の先端筒状部の先端外周縁と被覆加締め片の上端面との区間を挟むことで行う。雌端子金具上の先端外周縁から被覆加締め片の上端面までの距離は、雌端子金具の軸方向長さの略全長となる。即ち、上記(1)の構成では、コネクタハウジング内の2つの基準位置当接部を当接させるスパンが、当該雌端子金具の軸方向長さの略全長に及んでいる。そのため、雌端子金具の先端筒状部を2つの基準位置当接部によって挟む従来の位置決め構造の場合と比較すると、雌端子金具の軸方向の長さを短縮した場合でも、2つの基準位置当接部で挟むスパンを従来より(短縮前の先端筒状部の長さより)も大きく維持することができ、コネクタハウジング内における雌端子金具の傾きの増加を招くことがない。   According to the configuration of (1) above, the restriction of the inclination of the female terminal fitting in the connector housing is controlled on the female terminal fitting by the two reference position abutting portions, that is, the cylindrical tip abutting portion and the fixed portion upper surface abutting portion. This is performed by sandwiching a section between the outer peripheral edge of the distal end cylindrical portion and the upper end surface of the cover crimping piece. The distance from the outer peripheral edge of the tip on the female terminal fitting to the upper end surface of the covering crimping piece is substantially the entire length of the female terminal fitting in the axial direction. That is, in the configuration (1), the span where the two reference position abutting portions in the connector housing come into contact extends over substantially the entire length of the female terminal fitting in the axial direction. Therefore, compared to the conventional positioning structure in which the tip cylindrical portion of the female terminal fitting is sandwiched between the two reference position abutting portions, even when the axial length of the female terminal fitting is shortened, the two reference position equivalents are obtained. The span sandwiched between the contact portions can be maintained larger than before (the length of the tip cylindrical portion before shortening), and the increase in the inclination of the female terminal fitting in the connector housing is not caused.

したがって、コネクタハウジング内における雌端子金具の傾きの増加を招くことなく、雌端子金具の軸方向長さの短縮によって端子金具やコネクタハウジングの小型化を図ることができる。   Accordingly, the terminal fitting and the connector housing can be reduced in size by reducing the axial length of the female terminal fitting without increasing the inclination of the female terminal fitting in the connector housing.

更に、上記()の構成によれば、コネクタハウジング内の固定部上面当接部が被覆固定部の上端面に当接する際に、被覆加締め片の板厚以上に大きな係り代を確保しても、固定部上面当接部が電線と干渉するおそれがなく、固定部上面当接部に充分な係り代を確保して、しっかりと被覆固定部を位置決めすることが可能になる。 Furthermore, according to the configuration of ( 1 ) above, when the abutment portion upper surface abutting portion in the connector housing abuts on the upper end surface of the covering fixing portion, a large allowance larger than the plate thickness of the covering crimping piece is secured. However, there is no possibility that the fixed portion upper surface abutting portion interferes with the electric wire, and it is possible to secure a sufficient engagement margin on the fixed portion upper surface abutting portion and firmly position the covering fixed portion.

本発明によるコネクタハウジング内における雌端子金具の位置決め構造によれば、コネクタハウジング内における雌端子金具の傾きの増加を招くことなく、雌端子金具の軸方向長さの短縮によって端子金具やコネクタハウジングの小型化を図ることができる。   According to the positioning structure of the female terminal fitting in the connector housing according to the present invention, the axial length of the female terminal fitting can be reduced by reducing the axial length of the female terminal fitting without increasing the inclination of the female terminal fitting in the connector housing. Miniaturization can be achieved.

図1は本発明に係るコネクタハウジング内における雌端子金具の位置決め構造の一実施形態の縦断面図である。FIG. 1 is a longitudinal sectional view of an embodiment of a female terminal fitting positioning structure in a connector housing according to the present invention. 図2は図1に示した雌端子金具の斜視図である。FIG. 2 is a perspective view of the female terminal fitting shown in FIG. 図3(a)は雌端子金具の短縮化する前の元の寸法図であり、図3(b)は短縮化した図2の雌端子金具の寸法図である。3A is an original dimension diagram before shortening the female terminal fitting, and FIG. 3B is a dimension drawing of the shortened female terminal fitting of FIG. 図4は図1に示した雌端子金具の被覆固定部における横断面図である。4 is a cross-sectional view of the covering fixing portion of the female terminal fitting shown in FIG. 図5は本発明に係る雌端子金具において、断面積の小さい電線を把持した場合の被覆固定部における横断面図である。FIG. 5 is a cross-sectional view of the covering fixing portion when the electric wire having a small cross-sectional area is gripped in the female terminal fitting according to the present invention. 図6は従来のコネクタハウジング内に位置決めされる雌端子金具の斜視図である。FIG. 6 is a perspective view of a female terminal fitting positioned in a conventional connector housing. 図7は従来のコネクタハウジング内における雌端子金具の位置決め構造の縦断面図である。FIG. 7 is a longitudinal sectional view of a positioning structure for a female terminal fitting in a conventional connector housing.

以下、本発明に係るコネクタハウジング内における雌端子金具の位置決め構造の好適な実施形態について、図面を参照して詳細に説明する。   Hereinafter, a preferred embodiment of a female terminal fitting positioning structure in a connector housing according to the present invention will be described in detail with reference to the drawings.

図1〜図5は本発明に係るコネクタハウジング内における雌端子金具の位置決め構造の一実施形態を示したもので、図1は本発明に係るコネクタハウジング内における雌端子金具の位置決め構造の一実施形態の縦断面図、図2は図1に示した雌端子金具の斜視図、図3(a)は雌端子金具の短縮化する前の元の寸法図であり、図3(b)は短縮化した図2の雌端子金具の寸法図、図4は図1に示した雌端子金具の被覆固定部における横断面図、図5は本発明に係る雌端子金具において、断面積の小さい電線を把持した場合の被覆固定部における横断面図である。   1 to 5 show an embodiment of a female terminal fitting positioning structure in a connector housing according to the present invention. FIG. 1 shows an embodiment of a female terminal fitting positioning structure in a connector housing according to the present invention. 2 is a perspective view of the female terminal fitting shown in FIG. 1, FIG. 3 (a) is an original dimensional diagram before shortening the female terminal fitting, and FIG. 3 (b) is a shortened drawing. 2 is a dimensional view of the female terminal fitting of FIG. 2, FIG. 4 is a cross-sectional view of the covering fixing portion of the female terminal fitting shown in FIG. 1, and FIG. It is a cross-sectional view in the covering fixing part when gripped.

この一実施形態のコネクタハウジング内における雌端子金具の位置決め構造は、図1に示すように、コネクタハウジング10に収容した雌端子金具20の傾きを、筒部先端当接部12と、固定部上面当接部13との2つの当接部によって、許容範囲内に規制するものである。   As shown in FIG. 1, the female terminal fitting positioning structure in the connector housing according to this embodiment is configured such that the inclination of the female terminal fitting 20 accommodated in the connector housing 10 is determined by the cylindrical portion tip contact portion 12 and the fixed portion upper surface. The two contact portions with the contact portion 13 are regulated within an allowable range.

まず、雌端子金具20の構造を、図2〜図4に基づいて説明する。
本実施形態における雌端子金具20は、接続相手となる雄端子金具120(図6参照)が嵌合する先端筒状部21と、この先端筒状部21の後方に連続して設けられた導体接続部22と、この導体接続部22の後方に連続して設けられた被覆固定部23と、を備えている。
First, the structure of the female terminal fitting 20 will be described with reference to FIGS.
The female terminal fitting 20 in the present embodiment includes a tip cylindrical portion 21 into which a male terminal fitting 120 (see FIG. 6) as a connection partner is fitted, and a conductor provided continuously behind the tip cylindrical portion 21. A connecting portion 22 and a covering fixing portion 23 provided continuously behind the conductor connecting portion 22 are provided.

先端筒状部21は、図6に示した舌片状の雄端子金具120が挿抜可能な角筒状で、底壁21aと、この底壁21aの両側縁から立ち上がる一対の側壁部21bと、底壁21aと対向するように左右一対の側壁21bの上縁から延出した一対の上部壁21cとを備えている。この先端筒状部21は、筒内に、雄端子金具120を底壁21aとの間に挟持するための板ばね21dを備えている。   The tip cylindrical portion 21 is a rectangular tube shape into which the tongue-shaped male terminal fitting 120 shown in FIG. 6 can be inserted and removed, and includes a bottom wall 21a, a pair of side wall portions 21b rising from both side edges of the bottom wall 21a, A pair of upper walls 21c extending from the upper edges of the pair of left and right side walls 21b are provided so as to face the bottom wall 21a. The distal end tubular portion 21 includes a leaf spring 21d for sandwiching the male terminal fitting 120 with the bottom wall 21a in the tube.

導体接続部22は、先端筒状部21の底壁21aを延長した底壁部22aの両側部に、電線130の導体部131に加締め付ける導体加締め片22bを備える。導体接続部22は、導体加締め片22bの加締め付けにより、導体部131との導通接続を果たす。   The conductor connection portion 22 includes conductor crimping pieces 22b that are crimped to the conductor portion 131 of the electric wire 130 on both sides of the bottom wall portion 22a obtained by extending the bottom wall 21a of the distal end tubular portion 21. The conductor connection part 22 achieves a conductive connection with the conductor part 131 by crimping the conductor crimping piece 22b.

被覆固定部23は、導体接続部22の底壁部22aを延長した底壁部23aの両側部に、電線130の外被132の上に加締め付ける被覆加締め片23bを備える。被覆固定部23は、被覆加締め片23bの加締め付けにより、電線130の固定を果たす。   The covering fixing portion 23 includes covering crimping pieces 23 b that are crimped onto the outer jacket 132 of the electric wire 130 on both sides of the bottom wall portion 23 a obtained by extending the bottom wall portion 22 a of the conductor connecting portion 22. The covering fixing portion 23 fixes the electric wire 130 by tightening the covering crimping piece 23b.

図3(b)は、上記一実施形態の雌端子金具20の各部の軸方向の寸法(単位はmm)を示したものである。図3(b)に示した雌端子金具20は、図3(a)に示す短縮化前の従来の雌端子金具20Aの各部の寸法が短縮されている。例えば、従来は先端筒状部21Aの長さが12.0mmであったが、本実施形態の先端筒状部21は従来の半分の6.0mmに短縮されている。図3(b)に示した本実施形態の雌端子金具20は、殆ど全ての区間が短縮化され、全長は16.5mmに短縮されている。本実施形態の雌端子金具20の全長は、図3(a)に示した従来の雌端子金具20Aにおける先端筒状部21Aの長さ12.0mmよりも大きく設定されている。   FIG. 3B shows the axial dimensions (unit: mm) of each part of the female terminal fitting 20 of the embodiment. In the female terminal fitting 20 shown in FIG. 3B, the dimensions of each part of the conventional female terminal fitting 20A before shortening shown in FIG. 3A are shortened. For example, the length of the distal cylindrical portion 21A is 12.0 mm in the past, but the distal tubular portion 21 of the present embodiment is shortened to 6.0 mm, which is half of the conventional length. In the female terminal fitting 20 of the present embodiment shown in FIG. 3 (b), almost all sections are shortened and the total length is shortened to 16.5 mm. The total length of the female terminal fitting 20 of the present embodiment is set to be larger than the length of 12.0 mm of the distal cylindrical portion 21A in the conventional female terminal fitting 20A shown in FIG.

本実施形態の被覆固定部23は、図4に示すように、電線130の断面積に応じて成形幅寸法W2を拡縮することで、被覆加締め片23bの電線130に加締め付けた後の成形高さ寸法Hmが常に規定値に規制される。   As shown in FIG. 4, the covering fixing portion 23 of the present embodiment is formed after being crimped to the electric wire 130 of the covering crimping piece 23 b by expanding or reducing the forming width dimension W <b> 2 according to the cross-sectional area of the electric wire 130. The height dimension Hm is always regulated to a specified value.

具体的には、図5に示すように、電線130の断面積の相違のために、成形幅寸法がW1となる場合でも、成形高さ寸法Hmは維持されるように、被覆加締め片23bの各部の折り曲げが調整される。   Specifically, as shown in FIG. 5, due to the difference in cross-sectional area of the electric wire 130, the covering crimped piece 23 b is maintained so that the forming height dimension Hm is maintained even when the forming width dimension is W <b> 1. The bending of each part is adjusted.

また、本実施形態の場合、図4及び図5に示すように、被覆固定部23の被覆加締め片23bは、成形高さ寸法Hmに規制された上端面231の幅方向中央部で内側に折り曲げられた先端折り曲げ部23cの先端面232で電線130を押圧することで、固定した電線130の上端面位置を、成形高さ寸法Hmの上端面231位置から前記先端折り曲げ部23cの長さ分L1,L2だけ下がった位置に設定している。   In the case of the present embodiment, as shown in FIGS. 4 and 5, the cover crimping piece 23 b of the cover fixing portion 23 is inward at the center in the width direction of the upper end surface 231 regulated by the molding height dimension Hm. By pressing the electric wire 130 with the front end surface 232 of the bent front end bent portion 23c, the position of the upper end surface of the fixed electric wire 130 is set to the length of the front end bent portion 23c from the position of the upper end surface 231 of the molding height dimension Hm. It is set at a position lowered by L1 and L2.

図1に示すように、以上に説明した雌端子金具20において、先端筒状部21の先端外周縁21xと、成形高さ寸法Hmに規制された被覆加締め片23bの上端面231とは、雌端子金具20の軸方向(図1の矢印X方向)に離間した2つの位置決め基準位置である。   As shown in FIG. 1, in the female terminal fitting 20 described above, the distal outer peripheral edge 21x of the distal tubular portion 21 and the upper end surface 231 of the covering crimping piece 23b regulated by the molding height dimension Hm are: These are two positioning reference positions separated in the axial direction of the female terminal fitting 20 (in the direction of arrow X in FIG. 1).

本実施形態のコネクタハウジング10は、雌端子金具20を収容する端子挿入孔11に臨んで、筒部先端当接部12と、固定部上面当接部13と、筒部押さえ片14と、を備えている。   The connector housing 10 of the present embodiment faces the terminal insertion hole 11 that accommodates the female terminal fitting 20, and includes a cylindrical portion tip contact portion 12, a fixed portion upper surface contact portion 13, and a cylindrical portion pressing piece 14. I have.

筒部先端当接部12及び固定部上面当接部13は、雌端子金具20上の2つの位置決め基準位置に当接する2つの基準位置当接部として、設けられた当接部である。
筒部先端当接部12は、雌端子金具20の先端筒状部21の先端外周縁21xが当接することで、雌端子金具20の先端位置を規制する。
The tube portion tip contact portion 12 and the fixed portion upper surface contact portion 13 are contact portions provided as two reference position contact portions that contact two positioning reference positions on the female terminal fitting 20.
The cylindrical tip contact portion 12 regulates the tip position of the female terminal fitting 20 by contacting the distal outer peripheral edge 21x of the tip cylindrical portion 21 of the female terminal fitting 20.

固定部上面当接部13は、成形高さ寸法Hmに規制された雌端子金具20の被覆加締め片23bの上端面231が当接する。上端面231は、雌端子金具20の挿入方向に沿って延在する平坦面で、上端面231に当接することによって、雌端子金具20の先端外周縁21xを支点とした回動挙動を規制する。   The upper end surface 231 of the cover crimping piece 23b of the female terminal fitting 20 that is regulated to the molding height dimension Hm contacts the fixed portion upper surface abutting portion 13. The upper end surface 231 is a flat surface extending along the insertion direction of the female terminal fitting 20, and abuts on the upper end surface 231, thereby restricting the rotation behavior about the outer peripheral edge 21x of the female terminal fitting 20 as a fulcrum. .

本実施形態のコネクタハウジング10では、筒部先端当接部12と固定部上面当接部13とは、協働で、雌端子金具20の傾きを規制する。   In the connector housing 10 of the present embodiment, the cylindrical tip end contact portion 12 and the fixed portion upper surface contact portion 13 cooperate to regulate the inclination of the female terminal fitting 20.

更に、本実施形態の場合、筒部押さえ片14は、雌端子金具20の先端筒状部21の上面を所定の弾性力で押さえていて、先端筒状部21の挿入方向と直交する方向へのガタつきを防止する。この筒部押さえ片14には、先端筒状部21の上面の後端に係合して雌端子金具20の抜けを防止する係止突起(不図示)を設けるようにしても良い。   Furthermore, in the case of this embodiment, the cylinder part pressing piece 14 is pressing the upper surface of the tip cylindrical part 21 of the female terminal fitting 20 with a predetermined elastic force, and in a direction orthogonal to the insertion direction of the tip cylindrical part 21. Prevent rattling. The cylindrical pressing piece 14 may be provided with a locking projection (not shown) that engages with the rear end of the upper surface of the distal cylindrical portion 21 to prevent the female terminal fitting 20 from coming off.

以上に説明した一実施形態のコネクタハウジング内における雌端子金具の位置決め構造の場合、コネクタハウジング10内における雌端子金具20の傾きの規制は、筒部先端当接部12及び固定部上面当接部13の2つの基準位置当接部によって、雌端子金具20上の先端筒状部21の先端外周縁21xと被覆加締め片23bの上端面231との区間を挟むことで行う。雌端子金具20上の先端外周縁21xから被覆加締め片23bの上端面231までの距離は、雌端子金具20の軸方向長さの略全長となる。即ち、一実施形態の構成では、コネクタハウジング10内の2つの基準位置当接部を当接させるスパンが、当該雌端子金具20の軸方向長さの略全長に及んでいる。そのため、雌端子金具20の先端筒状部21を2つの基準位置当接部によって挟む従来の位置決め構造の場合と比較すると、雌端子金具20の軸方向の長さを短縮した場合でも、2つの基準位置当接部で挟むスパンを従来より(短縮前の先端筒状部21の長さより)も大きく維持することができ、コネクタハウジング10内における雌端子金具20の傾きの増加を招くことがない。   In the case of the female terminal fitting positioning structure in the connector housing according to the embodiment described above, the restriction of the inclination of the female terminal fitting 20 in the connector housing 10 is controlled by the cylindrical tip end contact portion 12 and the fixed portion upper surface contact portion. The two reference position abutting portions 13 sandwich the section between the distal outer peripheral edge 21x of the distal cylindrical portion 21 on the female terminal fitting 20 and the upper end surface 231 of the covering crimping piece 23b. The distance from the outer peripheral edge 21x on the female terminal fitting 20 to the upper end surface 231 of the covering crimping piece 23b is substantially the entire length of the female terminal fitting 20 in the axial direction. That is, in the configuration of the embodiment, the span where the two reference position abutting portions in the connector housing 10 abut each other extends over substantially the entire length of the female terminal fitting 20 in the axial direction. Therefore, compared with the conventional positioning structure in which the distal end tubular portion 21 of the female terminal fitting 20 is sandwiched between two reference position contact portions, the two lengths in the axial direction of the female terminal fitting 20 are reduced. The span sandwiched between the reference position contact portions can be maintained larger than the conventional span (the length of the tip cylindrical portion 21 before shortening), and the inclination of the female terminal fitting 20 in the connector housing 10 is not increased. .

したがって、コネクタハウジング10内における雌端子金具20の傾きの増加を招くことなく、雌端子金具20の軸方向長さの短縮によって端子金具やコネクタハウジング10の小型化を図ることができる。   Therefore, the terminal fitting and the connector housing 10 can be downsized by reducing the axial length of the female terminal fitting 20 without increasing the inclination of the female terminal fitting 20 in the connector housing 10.

また、以上に説明した一実施形態のコネクタハウジング内における雌端子金具の位置決め構造の場合、コネクタハウジング10内の固定部上面当接部13が被覆固定部23の上端面231に当接する際に、例えば固定部上面当接部13には係止突起15(図1参照)を突設しておいて、被覆加締め片23bの板厚以上に大きな係り代を確保しても、固定部上面当接部13が電線130と干渉するおそれがなく、固定部上面当接部13に充分な係り代を確保して、しっかりと被覆固定部23を位置決めすることが可能になる。   Further, in the case of the female terminal metal positioning structure in the connector housing of the embodiment described above, when the fixed portion upper surface contact portion 13 in the connector housing 10 contacts the upper end surface 231 of the covering fixed portion 23, For example, even if a locking protrusion 15 (see FIG. 1) is provided on the fixed portion upper surface abutting portion 13 so as to secure a larger allowance than the plate thickness of the covering crimping piece 23b, There is no possibility that the contact portion 13 interferes with the electric wire 130, and it is possible to secure a sufficient engagement margin for the fixing portion upper surface contact portion 13 and to firmly position the covering fixing portion 23.

なお、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。   In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

例えば、固定部上面当接部13は、雌端子金具の挿入方向に沿って延出する弾性片によって提供し、該固定部上面当接部13上には、雌端子金具の抜けを防止するための端子係止突起を設けるようにしても良い。   For example, the fixing portion upper surface abutting portion 13 is provided by an elastic piece extending along the insertion direction of the female terminal fitting, and the female terminal fitting is prevented from coming off on the fixing portion upper surface abutting portion 13. A terminal locking protrusion may be provided.

ここで、上述した本発明に係るコネクタハウジング内における雌端子金具の位置決め構造の実施形態の特徴をそれぞれ以下[1]〜[2]に簡潔に纏めて列記する。   Here, the features of the embodiment of the positioning structure of the female terminal fitting in the connector housing according to the present invention described above are briefly summarized and listed in the following [1] to [2], respectively.

[1] 雌端子金具(20)を収容するコネクタハウジング(10)には、前記雌端子金具(20)上の軸方向に離間した2つの位置決め基準位置に当接する2つの基準位置当接部を備え、2つの前記基準位置当接部の当接により前記雌端子金具(20)の傾きを規制するコネクタハウジング内における雌端子金具の位置決め構造であって、
前記雌端子金具(20)は、接続相手となる雄端子金具が嵌合する先端筒状部(21)と、電線(130)の導体部(131)に加締め付ける導体加締め片(22b)を備えると共に前記先端筒状部(21)の後方に連続して設けられて、前記導体加締め片(22b)の加締め付けにより前記導体部(131)との導通接続を果たす導体接続部(22)と、前記電線(130)の外被の上に加締め付ける被覆加締め片(23b)を備えると共に前記導体接続部(22)の後方に連続して設けられて、前記被覆加締め片(23b)の加締め付けにより前記電線(130)の固定を果たす被覆固定部(23)と、を備え、且つ、前記被覆固定部(23)は、前記電線(130)の断面積に応じて成形幅寸法を拡縮することで、前記被覆加締め片(23b)の加締め付けた後の成形高さ寸法が常に規定値に規制され、
前記コネクタハウジング(10)には、2つの前記基準位置当接部として、前記先端筒状部(21)の先端外周縁(21x)が当接する筒部先端当接部(12)と、成形高さ寸法に規制された前記被覆加締め片(23b)の上端面(231)が当接する固定部上面当接部(13)と、を備えたことを特徴とするコネクタハウジング内における雌端子金具の位置決め構造。
[1] The connector housing (10) that accommodates the female terminal fitting (20) has two reference position abutting portions that abut on two positioning reference positions spaced apart in the axial direction on the female terminal fitting (20). Comprising a female terminal fitting positioning structure in a connector housing that regulates the inclination of the female terminal fitting (20) by contact of the two reference position contact portions;
The female terminal fitting (20) includes a distal end tubular portion (21) to which a male terminal fitting to be connected is fitted, and a conductor crimping piece (22b) to be crimped to the conductor portion (131) of the electric wire (130). And a conductor connecting portion (22) that is provided continuously behind the tip cylindrical portion (21) and that conducts conductive connection with the conductor portion (131) by crimping the conductor crimping piece (22b). And a covering crimping piece (23b) for crimping on the outer sheath of the electric wire (130) and continuously provided behind the conductor connecting portion (22), the covering crimping piece (23b) A covering fixing portion (23) that fixes the electric wire (130) by crimping, and the covering fixing portion (23) has a molding width dimension according to a cross-sectional area of the electric wire (130). By expanding and contracting, the above-mentioned covering crimped piece ( Forming height after crimped in 3b) is always regulated to the specified value,
The connector housing (10) includes, as the two reference position abutting portions, a tubular portion abutting portion (12) with which a distal outer peripheral edge (21x) of the distal tubular portion (21) abuts, and a molding height A female terminal fitting in a connector housing, comprising: a fixed portion upper surface abutting portion (13) against which an upper end surface (231) of the covering crimping piece (23b) regulated to a length is abutted. Positioning structure.

[2] 前記被覆固定部(23)の被覆加締め片(23b)は、成形高さ寸法に規制された前記上端面(231)の幅方向中央部で内側に折り曲げられた先端折り曲げ部(23c)の先端面(232)で前記電線(130)を押圧することで、固定した前記電線(130)の上端面位置を、成形高さ寸法の上端面位置から前記先端折り曲げ部(23c)の長さ分だけ下がった位置に設定していることを特徴とする上記[1]に記載のコネクタハウジング内における雌端子金具の位置決め構造。   [2] The cover crimping piece (23b) of the cover fixing portion (23) is bent at the tip end (23c) that is bent inward at the center in the width direction of the upper end surface (231) restricted by the molding height. ) By pressing the electric wire (130) with the front end surface (232) of the wire, the upper end surface position of the fixed electric wire (130) is changed from the upper end surface position of the molding height to the length of the bent end portion (23c). The positioning structure of the female terminal fitting in the connector housing according to the above [1], wherein the positioning is set at a position lowered by a certain amount.

10 コネクタハウジング
12 筒部先端当接部
13 固定部上面当接部
20 雌端子金具
21 先端筒状部
21x 先端外周縁
22 導体接続部
22b 導体加締め片
23 被覆固定部
23b 被覆加締め片
23c 先端折り曲げ部
130 電線
131 導体部
231 上端面
DESCRIPTION OF SYMBOLS 10 Connector housing 12 Cylinder front end contact part 13 Fixed part upper surface contact part 20 Female terminal metal fitting 21 Front end cylindrical part 21x Front outer peripheral edge 22 Conductor connection part 22b Conductor crimping piece 23 Cover fixing part 23b Cover crimping piece 23c Tip Bending part 130 Electric wire 131 Conductor part 231 Upper end surface

Claims (2)

雌端子金具を収容するコネクタハウジングには、前記雌端子金具上の軸方向に離間した2つの位置決め基準位置に当接する2つの基準位置当接部を備え、2つの前記基準位置当接部の当接により前記雌端子金具の傾きを規制するコネクタハウジング内における雌端子金具の位置決め構造であって、
前記雌端子金具は、接続相手となる雄端子金具が嵌合する先端筒状部と、電線の導体部に加締め付ける導体加締め片を備えると共に前記先端筒状部の後方に連続して設けられて、前記導体加締め片の加締め付けにより前記導体部との導通接続を果たす導体接続部と、
前記電線の外被の上に加締め付ける被覆加締め片を備えると共に前記導体接続部の後方に連続して設けられて、前記被覆加締め片の加締め付けにより前記電線の固定を果たす被覆固定部と、を備え、且つ、前記被覆固定部は、前記電線の断面積に応じて成形幅寸法を拡縮することで、前記被覆加締め片の加締め付けた後の成形高さ寸法が常に規定値に規制され、
前記コネクタハウジングには、2つの前記基準位置当接部として、前記先端筒状部の先端外周縁が当接する筒部先端当接部と、成形高さ寸法に規制された前記被覆加締め片の上端面が当接する固定部上面当接部と、を備え
前記被覆固定部の被覆加締め片は、成形高さ寸法に規制された前記上端面の幅方向中央部で内側に折り曲げられた先端折り曲げ部の先端面で前記電線を押圧することで、固定した前記電線の上端面位置を、成形高さ寸法の上端面位置から前記先端折り曲げ部の長さ分だけ下がった位置に設定しており、
前記固定部上面当接部に当接する前記被覆加締め片の上端面は、前記雌端子金具の挿入方向に沿って延在する平坦面であり、
前記固定部上面当接部には、前記被覆加締め片の後面が当接する係止突起が突設されており、前記被覆加締め片の上端面が当接する前記固定部上面当接部からの前記係止突起の突出高さは、前記被覆加締め片の板厚より大きく、且つ、前記被覆加締め片の前記先端折り曲げ部の長さ未満であることを特徴とするコネクタハウジング内における雌端子金具の位置決め構造。
The connector housing that accommodates the female terminal fitting includes two reference position abutting portions that abut against two axially spaced positioning reference positions on the female terminal fitting. A female terminal fitting positioning structure in a connector housing that regulates the inclination of the female terminal fitting by contact,
The female terminal fitting includes a distal end cylindrical portion to which a male terminal fitting as a connection partner is fitted, and a conductor crimping piece to be crimped to a conductor portion of an electric wire, and is provided continuously behind the distal end tubular portion. A conductor connecting portion that performs conductive connection with the conductor portion by crimping the conductor crimping piece;
A covering fixing portion provided with a covering crimping piece for crimping on the outer sheath of the electric wire and continuously provided behind the conductor connecting portion, and for fixing the electric wire by crimping the covering crimping piece; In addition, the covering fixing part expands or contracts the forming width dimension according to the cross-sectional area of the electric wire, so that the forming height dimension after crimping of the covering crimping piece is always regulated to a specified value. And
In the connector housing, as the two reference position abutting portions, there are a cylindrical portion tip abutting portion with which the outer peripheral edge of the tip cylindrical portion abuts, and the covering crimping piece regulated by a molding height dimension. A fixed portion upper surface abutting portion with which the upper end surface abuts ,
The covering crimping piece of the covering fixing portion is fixed by pressing the electric wire at the tip end surface of the tip bending portion that is bent inward at the center in the width direction of the upper end surface that is regulated by the molding height dimension. The upper end surface position of the electric wire is set to a position that is lowered from the upper end surface position of the molding height by the length of the bent end portion,
The upper end surface of the covering crimping piece that comes into contact with the fixed portion upper surface contact portion is a flat surface extending along the insertion direction of the female terminal fitting,
The fixing portion upper surface abutting portion is provided with a locking projection that abuts the rear surface of the covering crimping piece, and the upper end surface of the covering crimping piece contacts the fixing portion upper surface abutting portion. The female terminal in the connector housing is characterized in that a protruding height of the locking projection is larger than a plate thickness of the covering crimping piece and less than a length of the bent end portion of the covering crimping piece. Bracket positioning structure.
前記固定部上面当接部は、前記雌端子金具の挿入方向に沿って延出する弾性片によって提供されることを特徴とする請求項1に記載のコネクタハウジング内における雌端子金具の位置決め構造。 The positioning structure of the female terminal fitting in the connector housing according to claim 1, wherein the fixed portion upper surface abutting portion is provided by an elastic piece extending along an insertion direction of the female terminal fitting.
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