JP5836623B2 - connector - Google Patents

Description

  The present invention relates to a lance that engages with a lance engaging portion of the connection terminal and restricts movement of the connection terminal in the disconnecting direction as means for preventing the connection terminal accommodated in the connector housing from being disconnected, The present invention relates to a connector provided with a stabilizer locking means that engages with a stabilizer and restricts movement of the connection terminal in the pulling direction.

13 and 14 show a connector disclosed in Patent Document 1 below.
The connector 101 includes a connection terminal 110 made of a metal plate and a connector housing 120 having a terminal accommodation hole 121 for accommodating the connection terminal 110.

  The connection terminal 110 is a female terminal formed by press forming a metal plate. The connection terminal 110 includes a rectangular tube-shaped terminal fitting portion 111 that is fitted to the tip of a counterpart connection terminal (not shown), a rectangular tube-shaped portion 112 that is connected to the rear end of the terminal fitting portion 111, An electric wire crimping portion 113 connected to the rear end of the rectangular tubular portion 112.

  On the rectangular tubular portion 112, a lance engaging portion 114 and a stabilizer 116 for preventing erroneous insertion are provided.

  The lance engaging portion 114 is an opening formed in the outer wall portion 112a of the rectangular tubular portion 112 that faces a lance 123 of the connector housing 120 described later.

  The stabilizer 116 is a projecting piece obtained by extending a part of the edge of the outer wall 112b located on both sides of the outer wall 112a to the bottom 121a side of the terminal accommodating hole 121 described later.

  The connector housing 120 is provided with a guide groove (not shown) for guiding the stabilizer 116, and as a means for preventing the connection terminal 110 from being inserted into the terminal receiving hole 121, a lance 123 and a stabilizer lock are provided. A retainer 124 is provided as a means.

  Guide grooves (not shown) for guiding the stabilizer 116 are provided on both side edges of the bottom 121 a of the terminal accommodating hole 121 facing the stabilizer 116, corresponding to the arrangement of the stabilizer 116 in the connection terminal 110.

  The lance 123 is an elastic locking piece formed so as to be able to bend and displace in a direction away from the terminal fitting portion 111 due to interference with the outer wall portion 112 a during the insertion of the connection terminal 110 into the terminal accommodating hole 121. When the insertion of the connection terminal 110 into the terminal accommodation hole 121 is completed, the lance 123 engages with the lance engagement portion 114 and restricts the movement of the connection terminal 110 in the removal direction.

  The retainer 124 as the stabilizer locking means is a member formed separately from the connector housing 120 and can be attached to and detached from the connector housing 120.

  The retainer 124 is attached to the connector housing 120 after the insertion of the connection terminal 110 into the terminal receiving hole 121 is completed. When the retainer 124 is attached to the connector housing 120, as shown in FIG. 13, the retainer 124 is engaged with the rear end edge 116 a of the stabilizer 116 of the connection terminal 110 held in the terminal receiving hole 121, and Restrict movement in the pull-out direction.

  In the connector 101 described above, the connection terminal 110 accommodated in the connector housing 120 is doubled by the lance 123 and the retainer 124 as a stabilizer locking means. Therefore, the holding force of the connection terminal can be improved as compared with the case of the connector having only the lance as the connection terminal retaining means.

JP-A-8-213091

  However, in the case of the connector disclosed in Patent Document 1, since the retainer 124 that is separate from the connector housing 120 is used as the stabilizer locking means, there are problems such as an increase in the number of components of the connector and an increase in the assembly process. There has occurred.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a connector that can improve the holding force of connection terminals without increasing the number of components and assembly processes, in order to solve the above-described problems.

The above-described object of the present invention is achieved by the following configuration.
(1) A connection terminal and a connector housing having a terminal accommodation hole for accommodating the connection terminal,
The connection terminal includes a lance engaging portion and a stabilizer for preventing erroneous insertion,
The connector housing is provided with a guide groove for guiding the stabilizer, and engages with the lance engaging portion as means for preventing the connection terminal that has been inserted into the terminal receiving hole from being disconnected. A connector provided with a lance that restricts movement of the terminal in the pulling direction and a stabilizer locking means that engages with the stabilizer and restricts movement of the connecting terminal in the pulling direction,
The guide groove extends along the extending direction of the lance on the side of the lance.
The stabilizer locking means is a raised structure integrally formed on a side surface of the lance, and includes a leading end surface that locks the stabilizer, an inclined surface that guides the stabilizer to the leading end surface, and a continuous surface to the inclined surface. And has a top surface that extends to the stabilizer insertion source side and also serves as the bottom surface of the guide groove,
The lance engaging portion is formed in an eccentric state in the width direction of the connection terminal, and is formed by forming an opening across the upper wall and the side wall portion of the connection terminal. Connector.

  According to the configuration of (1) above, the connection terminal accommodated in the connector housing is prevented from coming off twice by the lance and the stabilizer locking means. Therefore, the holding force of the connection terminal can be improved as compared with the case of the connector having only the lance as the connection terminal retaining means.

  Moreover, according to the configuration of (1) above, the stabilizer locking means is a raised structure integrally formed on the side surface of the lance, and does not increase the number of components and assembly steps.

  Therefore, according to the configuration of (1), the holding force of the connection terminal can be improved without increasing the number of component parts and assembly steps.

  According to the connector according to the present invention, the connection terminal accommodated in the connector housing is doubled by the lance and the stabilizer locking means. Therefore, the holding force of the connection terminal can be improved as compared with the case of the connector having only the lance as the connection terminal retaining means.

  Moreover, according to the connector of the present invention, the stabilizer locking means is a raised structure integrally formed on the side surface of the lance, and does not increase the number of components and assembly processes.

  Therefore, according to the connector of the present invention, the holding force of the connection terminal can be improved without increasing the number of components and the assembly process.

It is a perspective view of one embodiment of a male tab terminal which a connector housing of a connector concerning the present invention accommodates. It is a B arrow line view of FIG. It is a side view (C arrow view of FIG. 2) of the male tab terminal shown in FIG. It is a perspective view of one embodiment of a female connection terminal which a connector housing of a connector concerning the present invention stores. It is D arrow line view of FIG. FIG. 5 is a side view of the female connection terminal shown in FIG. 4 (a view taken in the direction of arrow E in FIG. 5). It is a longitudinal cross-sectional view of the principal part of one Embodiment of the connector housing which accommodates the female connection terminal which concerns on this invention. It is F arrow line view of FIG. It is the perspective view which looked at the lance and stabilizer latching means shown in Drawing 7 from the tip side upper part of a lance. It is the perspective view which looked at the lance and stabilizer latching means shown in Drawing 7 from the rear end side upper part of a lance. It is a perspective view in the state where the stabilizer was locked to the stabilizer locking means shown in FIG. It is a side view of the lance which shows other embodiment of the stabilizer latching means which concerns on this invention. It is a longitudinal cross-sectional view of the conventional connector. It is AA sectional drawing of FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a connector according to the present invention will be described in detail with reference to the drawings.

  1 to 3 show an embodiment of a male tab terminal accommodated in a connector housing of a connector according to the present invention, FIG. 1 is a perspective view of the male tab terminal of an embodiment of the present invention, and FIG. FIG. 3 is a side view of the male tab terminal shown in FIG. 1 (a view of arrow C in FIG. 2).

  The connector according to this embodiment includes a male tab terminal 10 shown in FIGS. 1 to 3, a female connection terminal 20 shown in FIGS. 4 to 6, a connector housing 30 that accommodates and holds the female connection terminal 20, and the like. .

  The male tab terminal 10 in one embodiment is a press-molded product of a metal plate, a rod-shaped tab 11 formed at the tip (left end in FIG. 3), and a rectangular tube shape with a rectangular tube structure connected to the rear end of the tab 11. A portion 12 and a wire crimping portion 14 connected to the rear end of the rectangular tubular portion 12.

  A chamfer 15 for facilitating fitting to a female connection terminal 20 to be described later is applied to the tip of the tab 11.

On the side of the upper wall 12a of the rectangular tube-shaped portion 12, a lance engaging portion 16 that engages with a protruding portion of the lance of the connector housing and a stabilizer 19 for preventing erroneous insertion are formed.
The lance engaging portion 16 is a substantially rectangular opening, and is formed in a state of being eccentric in the width direction with respect to the central axis C10 of the male tab terminal 10 shown in FIG. In the case of the present embodiment, the lance engaging portion 16 is formed on the square tubular portion 12 facing the lance so that the projection portion of the lance can also engage with the side wall portion 12b on one side of the square tubular portion 12. It is formed by forming an opening (notch) across the upper wall 12a and the side wall portion 12b connected to the side edge of the upper wall 12a.

  An edge on the tip side of the lance engaging portion 16 serves as a lance engaging surface 16a that prevents the lance engaging portion 16 from coming into contact with the lance projection on the connector housing.

  As shown in FIG. 3, the lance engagement surface 16a of the present embodiment includes a first engagement surface 161 that is an edge of the opening in the upper wall 12a and a first engagement surface at the edge of the opening in the side wall portion 12b. A hook-shaped (L-shaped) engagement surface including a second engagement surface 162 extending from the end of 161 in a direction substantially orthogonal to the upper wall 12a.

  The stabilizer 19 is a projecting piece obtained by extending a part of the upper end edge of the side wall 12c on the other side of the upper wall 12a so as to project upward from the upper wall 12a.

  The stabilizer 19 is provided to prevent the male tab terminal 10 from being inverted upside down and being erroneously inserted into the connector housing.

  The electric wire crimping portion 14 includes a conductor crimping piece 17 that is crimped to the conductor of the electric wire and a covering crimping piece 18 that is crimped to the coating portion of the electric wire.

  4 to 6 show an embodiment of the female connection terminal accommodated in the connector housing of the connector according to the present invention. FIG. 4 is a perspective view of the female connection terminal of the embodiment of the present invention, and FIG. 4 is a side view of the female connection terminal shown in FIG. 4 (a view of the arrow E in FIG. 5).

  The female connection terminal 20 is a press-molded product of a metal plate, and has a rectangular tube-shaped terminal fitting portion 21 formed at the tip (left end in FIG. 6) and a rectangular tube structure connected to the rear end of the terminal fitting portion 21. , And an electric wire crimping portion 24 connected to the rear end of the rectangular tube portion 22.

  In the case of this embodiment, the rectangular tube-shaped portion 22 has a rectangular tube structure in which the rear end side of the terminal fitting portion 21 is extended. On the side of the upper wall 22a of the rectangular tubular portion 22, a lance engaging portion 23 as a lance engaging portion that engages a projection 37b of a lance 37 to be described later, and a stabilizer 29 for preventing erroneous insertion are formed. ing.

  The terminal fitting portion 21 has a rectangular tube structure in which the tab 11 at the tip of the male tab terminal 10 can be fitted, and the tab 11 is fitted and connected. As shown in FIG. 6, a pressing spring piece 26 that presses the inserted tab 11 toward the upper surface 21 a and realizes a conductive connection with the tab 11 is provided inside the terminal fitting portion 21.

  The lance engaging portion 23 is a substantially rectangular opening into which a projection 37b of the lance 37 in the connector housing 30 described later is engaged. The lance engaging portion 23 is formed in a state of being eccentric in the width direction with respect to the central axis C20 of the female connection terminal 20 shown in FIG. Further, in the case of the present embodiment, the lance engagement portion 23 faces the lance 37 described later so that a projection 37b of the lance 37 described later can also engage with the side wall portion 22b on one side of the rectangular tube-shaped portion 22. It is formed by forming an opening (notch) straddling the upper wall 22a of the rectangular tube-shaped part 12 and the side wall part 22b connected to one side edge of the upper wall.

  The edge portion on the front end side of the lance engaging portion 23 becomes a lance engaging surface 23 a that prevents the lance 37 from coming off by contact with the protruding portion 37 b of the lance 37.

  As shown in FIG. 4, the lance engagement surface 23a of the present embodiment includes a first engagement surface 231 that is an edge of the opening in the upper wall 22a and a first engagement surface at the edge of the opening in the side wall portion 22b. A hook-shaped (L-shaped) engagement surface including a second engagement surface 232 extending from the end of 231 in a direction substantially orthogonal to the upper wall 22a.

  The stabilizer 29 is a projecting piece obtained by extending a part of the upper end edge of the side wall 22c on the other side of the upper wall 22a so as to project upward from the upper wall 12a.

  The stabilizer 29 is provided to prevent the female connection terminal 20 from being inverted upside down and being erroneously inserted into the connector housing.

  The electric wire crimping portion 24 includes a conductor crimping piece 27 to be crimped to the conductor of the electric wire and a covering crimping piece 28 to be crimped to the coating portion of the electric wire.

  FIGS. 7 to 11 show an embodiment of a connector housing that accommodates and holds the female connection terminal 20, FIG. 7 is a longitudinal sectional view of a main part of the connector housing 30 of the embodiment, and FIG. FIG. 9 is a perspective view of the lance and stabilizer locking means shown in FIG. 7 as viewed from above the tip end side of the lance, and FIG. 10 is a view of the lance and stabilizer locking means shown in FIG. FIG. 11 is a perspective view of the state in which the stabilizer is locked to the stabilizer locking means shown in FIG. 10.

  The connector housing 30 shown in FIGS. 7 to 11 is a female housing that accommodates and holds the female connection terminals 20, and is an injection-molded product made of a plastic material.

  The connector housing 30 includes a terminal receiving hole 31 for receiving the female connection terminal 20, a tab insertion port 33 into which the tab 11 of the male tab terminal 10 fitted and connected to the female connection terminal 20, and a female connection. A guide groove 35 for guiding the stabilizer 29 of the terminal 20, and a lance 37 and a stabilizer locking means 38 as a means for preventing the female connection terminal 20 from being inserted into the terminal receiving hole 31 are provided.

  The terminal accommodating hole 31 is a hole opened in the rear end surface (base end surface) 30a of the connector housing 30 so that the female connection terminal 20 can be inserted from the rear end of the housing.

  The tab insertion port 33 is a hole having a quadrangular cross section formed through the front end of the housing, and communicates with the front end side of the terminal receiving hole 31.

  As shown in FIGS. 7 and 8, the guide groove 35 extends on one side of the lance 37 along the extending direction of the lance 37. The guide groove 35 is a female connection terminal when the female connection terminal 20 is inserted into the terminal receiving hole 31 in a proper mounting direction (direction in which the upper wall 22a of the female connection terminal 20 faces the lance 37). 20 stabilizers 29 are slidably supported along the length direction of the terminal accommodating hole 31.

  The lance 37 includes a cantilevered elastic piece 37a extending along the longitudinal direction of the terminal receiving hole 31, and a protrusion 37b protruding into the terminal receiving hole 31 from the distal end side of the elastic piece 37a. . When the insertion of the female connection terminal 20 into the terminal receiving hole 31 is completed, the lance 37 engages with the lance engagement portion 23 of the female connection terminal 20 so that the female connection terminal 20 Restrict movement in the pull-out direction.

  In this embodiment, the stabilizer locking means 38 is a thick plate-like raised structure integrally formed on the side surface of the lance 37 as shown in FIGS. The stabilizer locking means 38 is integrally formed on the side surface of the lance 37 so that the upper surface 38a also serves as the bottom surface of the guide groove 35 on which the stabilizer 29 slides. When the insertion of the female connection terminal 20 into the terminal receiving hole 31 is completed, the stabilizer locking means 38 is engaged with the rear end surface 29a of the stabilizer 29 as shown in FIG. The movement of the female connection terminal 20 in the removal direction (arrow X direction in FIG. 11) is restricted.

  In the present embodiment, the connector housing that accommodates and holds the male tab terminal 10 is not shown. However, the connector housing that accommodates and holds the male tab terminal 10 also includes a lance and a stabilizer locking means as means for preventing the male tab terminal 10 that is accommodated from coming off, as in the case of the connector housing 30. The stabilizer locking means is equipped as a raised structure integrally formed on the side surface of the lance, as in the case of the connector housing 30.

  In the connector according to the embodiment described above, the female connection terminal 20 housed in the connector housing 30 is doubled by the lance 37 and the stabilizer locking means 38. Therefore, the holding force of the female connection terminal 20 can be improved as compared with a connector having only a lance as a means for preventing the connection terminal from coming off.

  Moreover, in the connector according to the embodiment, the stabilizer locking means 38 is a raised structure integrally formed on the side surface of the lance 37, and does not increase the number of components and assembly processes.

  Therefore, in the connector of one embodiment, the holding force of the female connection terminal 20 can be improved without increasing the number of components and assembly steps.

  Further, in the connector housing that accommodates the male tab terminal 10, similarly to the connector housing 30, a stabilizer locking means is integrally formed on the side surface of the lance so that the connector can be fitted and connected to a pair. In each connector housing, it is possible to prevent an increase in the number of components and an increase in the assembly process.

  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.

  For example, the stabilizer locking means 38 integrally formed on the side surface of the lance 37 is not a long raised structure extending along the length direction of the lance 37 as shown in FIGS. As shown in the figure, a small triangular raised structure with which the stabilizer 29 gets over and engages can be reduced in size and weight.

10 Male tab terminal (connection terminal)
16 Lance engaging part 19 Stabilizer 20 Female connection terminal (connection terminal)
23 Lance engaging portion 29 Stabilizer 30 Connector housing 31 Terminal receiving hole 35 Guide groove 37 Lance 38 Stabilizer locking means

Claims (1)

A connection terminal and a connector housing having a terminal accommodation hole for accommodating the connection terminal;
The connection terminal includes a lance engaging portion and a stabilizer for preventing erroneous insertion,
The connector housing is provided with a guide groove for guiding the stabilizer, and engages with the lance engaging portion as means for preventing the connection terminal that has been inserted into the terminal receiving hole from being disconnected. A connector provided with a lance that restricts movement of the terminal in the pulling direction and a stabilizer locking means that engages with the stabilizer and restricts movement of the connecting terminal in the pulling direction,
The guide groove extends along the extending direction of the lance on the side of the lance.
The stabilizer locking means is a raised structure integrally formed on a side surface of the lance, and includes a leading end surface that locks the stabilizer, an inclined surface that guides the stabilizer to the leading end surface, and a continuous surface to the inclined surface. And has a top surface that extends to the stabilizer insertion source side and also serves as the bottom surface of the guide groove,
The lance engaging portion is formed in an eccentric state in the width direction of the connection terminal, and is formed by forming an opening across the upper wall and the side wall portion of the connection terminal. Connector.

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