JP4877633B2 - connector - Google Patents

Description

  The present invention relates to a connector, and more particularly to a fixed terminal type connector. By eliminating residual stress generated when press-fitting and fixing a series of terminals in a single row, staggered, etc., connector deformation that occurs during initial and reflow heat resistance It is related with the connector which suppresses.

Regarding connectors in the prior art, there is a press-fit fixing method as a so-called continuous terminal fixing method.
As shown in FIG. 9, this press-fitting and fixing method is formed of a conductive metal in a housing 111 provided with a plurality of terminal insertion holes 112 formed of synthetic resin, and is larger than the width of the terminal insertion holes 112. A terminal 115 provided with a wide press-fitting portion 113 is fixed by press-fitting.

When the terminal 115 is inserted into the terminal insertion hole 112, as shown in FIG. 10, the press-fitting portion 113 formed wider than the width of the terminal insertion hole 112 is in close contact with the side wall of the hole. It is fixed to the terminal insertion hole 112. Therefore, a residual stress is constantly generated from the press-fitted terminal, and the residual stress is applied to the housing 111.
JP 2003-32017 A

  However, in the method of fixing a terminal by press-fitting and fixing as described in the prior art, if the housing remains fragile (thin) as a result of the stress remaining in the housing on the mating side, the housing itself is deformed by the residual stress. There is a problem of end up.

  Therefore, there is a problem that must be solved by suppressing the deformation of the connector by using a structure that does not generate residual stress that occurs when the connected terminals are fixed to the housing.

  In order to solve the above problems, the connector of the present invention is configured as follows.

(1) The connector is fixed to a housing provided with a plurality of terminal insertion holes by press-fitting a terminal provided with a press-fit portion formed of a conductive metal and having a convex shape wider than the width of the terminal insertion hole. a connector, to have a spring property to press-fit portion formed in the convex, the communication with the terminal insertion hole, the engagement of the concave press-fitting portion formed in the convex engages locking That is, a locking portion is provided.
(2) The connector according to (1), wherein the press-fitting portion having the spring property is formed in a lance structure.
(3) The connector according to (2), wherein the press-fitting portion is formed in a rectangular frame structure.
(4) The connector according to (2), wherein the press-fit portion has a structure having a certain clearance with respect to the terminal insertion hole.

(5) The connector is provided with a press-fit portion formed of a conductive metal and having a convex shape wider than the width of the terminal insertion hole in a housing provided with a plurality of terminal insertion holes, and is in electrical contact with the connector. A connector for fixing a terminal having an elastic contact portion by press-fitting, comprising a holding portion having a rectangular frame structure arranged so as to surround the elastic contact portion from a base end of the elastic contact portion, and the frame The elastically deforming pieces on both sides of the holding portion having a structure are provided with a press-fit portion formed in a convex shape protruding outward, communicated with the terminal insertion hole, and the press-fit portion formed in the convex shape is engaged. This is provided with a concave engagement locking portion to be stopped .
(6) The connector according to (5), wherein a certain clearance is provided between a width in the width direction of the holding portion and a width in the width direction of the terminal insertion hole.

  According to the present proposal, by adopting the lance structure for fixing the chained terminals, the residual stress generated during the press-fitting and fixing can be eliminated, and the deformation of the fragile (thin) housing can be suppressed.

  Next, an embodiment of a connector according to the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 to 4, the connector of the present invention has a fundamental improvement in terminals (first terminal and second terminal) formed of conductive metal for press-fitting and fixing in a chained state. In addition, the present invention provides a terminal and a housing having a structure that eliminates problems such as deformation due to residual stress with respect to a fragile (thin) housing to be assembled by press-fitting.

  The structure of this connector is different from the conventional structure in which the terminal insertion hole for inserting and fixing the terminal provided in the housing is simply press-fitted and fixed as in the prior art, and the terminal insertion hole for storing the terminal is in the terminal insertion direction. A structure including a concave engagement locking portion that can be engaged and locked with a press-fitting portion that is formed into a convex shape having a spring property on the terminal, on a side wall that extends around the axis in the terminal insertion direction, That is, the lance shape is adopted.

  As shown in FIGS. 1 and 3, the housing 11 is made of an insulating resin and is formed in a substantially square plate shape. In the drawing, a terminal insertion hole for accommodating a plurality of first terminals 15 in a parallel state on the back side. 12 and a terminal insertion hole 26 for accommodating a plurality of second terminals 31 in a parallel state is provided on the front side in the figure.

The terminal insertion hole 12 that accommodates the first terminal 15 forms grooves 14a and 14b that do not open upward (planar side) and downward (bottom side), and the grooves 14a and 14b have a thickness of a holding portion 19 to be described later. The height (the height in the vertical direction) is the same as or slightly larger. A contact window 14c for allowing the tip of the elastic contact portion 18 of the first terminal 15 to face is formed at a position near the opening (rear opening) in the terminal insertion direction of the terminal insertion hole 12, and grooves 14a, 14b are formed. It has a structure provided with engagement locking portions 13a and 13b in which the side walls of the first and second side walls are further recessed outward. The width of the opening above the terminal insertion hole 12 is such that at least the tip of the elastic contact portion 18 can pass through, and the width above the terminal insertion hole 12 is wide enough to prevent a holding portion 19 described later from coming off.
The structure of this connector is different from the conventional structure in which the terminal insertion hole 12 for inserting and fixing the terminal provided in the housing 11 is simply press-fitted and fixed as in the prior art. A concave engagement locking portion 13a that extends in the insertion direction and can be engaged and locked with a press-fitted portion formed on the terminal in a convex shape having springiness on a side wall around the axis in the terminal insertion direction, A structure having 13b, that is, a lance shape is adopted.

  The terminal insertion hole 26 that accommodates the second terminal 31 forms grooves 28a and 28b that do not open upward (planar side) and downward (bottom side), and the grooves 28a and 28b are each holding portions 34a described later. , 34b has a height (vertical height) that is the same as or slightly larger than the thickness of 34b. A contact window 28c for allowing the tip of the elastic contact portion 33 of the second terminal 31 to face is formed at a position near the opening (front opening) in the terminal insertion direction of the terminal insertion hole 26, and grooves 28a, 28b are formed. In this structure, the side wall is recessed outward and the engagement locking portions 27a and 27b, which are surfaces bent outward from the side surface of the terminal insertion hole 26, are provided. The width of the opening above the terminal insertion hole 26 is such that at least the tip of the elastic contact portion 33 can pass therethrough, and the upper portion of the terminal insertion hole 26 is open with a width that prevents holding portions 34a and 34b to be described later. .

The first terminal 15 has a plate member formed in a rectangular shape, and is provided with elasticity by being continuously connected to the holding portion 19 by cutting the free end portion ahead of the base end portion 17 into a U shape. An elastic contact portion 18 is formed and a holding portion 19 having a rectangular frame structure arranged so as to surround the elastic contact portion 18 is provided, and the doubly-supported spring-shaped pieces 21a and 21b on both sides of the holding portion 19 are provided. The lance-shaped press-fit portions 22a and 22b are formed in a substantially intermediate position so as to protrude further outward in the lateral direction. The elastic contact portion 18 can come into contact with the contact of the mounted mating connector.
The pieces 21a and 21b of the holding portion 19 provided with the press-fit portions 22a and 22b have a structure having a so-called elastically deformable spring property. If the press-fit portions 22a and 22b are pushed from the outside, the press-fit portions 22a and 22b are pressed. The portion provided with is elastically deformed in the inner direction.

  The second terminal 31 includes holding portions 34a and 34b extending from both ends of the base end portion of the rectangular elastic contact portion 33 in an arm shape, and outwardly at the distal ends of the holding portions 34a and 34b extending in the arm shape. The press-fit portions 35a and 35b are formed so as to protrude. In the holding portions 34 a and 34 b, the press-fit portions 35 a and 35 b provided at the tips are elastically deformed inward in the same manner as the first terminal 15.

  A state in which the first terminal 15 is inserted into the terminal insertion hole 12 of the housing 11 having such a structure and the second terminal 31 is inserted into the terminal insertion hole 26 and incorporated into the housing 11 will be described.

First, as shown in FIG. 4, the first terminal 15 is inserted into the terminal insertion hole 12 of the housing 11 from the free end side. Then, the press-fit portions 22a and 22b of the inserted first terminal 15 come into contact with the side walls of the grooves 14a and 14b of the terminal insertion hole 12 and are pressed inward, so that the press-fit portions 22a and 22b of the holding portion 19 are provided. The pieces 21a and 21b are elastically deformed in the inner direction. When the terminal 15 is further pushed in this state, the press-fit portions 22a and 22b of the pieces 21a and 21b elastically deformed in the inner direction are press-fitted so that the pair of side surfaces of the terminal insertion hole 12 are respectively bent outward. The portions 22a and 22b are not urged by the side walls of the grooves 14a and 14b, and the state of the holding portion 19 that is elastically deformed is restored to its original state by its own elasticity, and the first terminal 15 is in the insertion direction. The first terminal 15 itself is fixed to the terminal insertion hole 12 by being able to come into contact with the engagement locking portions 13a and 13b orthogonal to the insertion direction.
Thus, when initially inserted, it is elastically deformed inward by the protrusion of the press-fit portions 22a and 22b, and press-fitted against the friction between the side walls of the grooves 14a and 14b of the terminal insertion hole 12 and the press-fit portions 22a and 22b. When the pair of side surfaces of the hole 12 face outwardly bent portions and the press-fit portions 22a and 22b are not urged by the side walls of the grooves 14a and 14b, the elastically deformed holding portion 19 is elastically deformed. Returning to the original state, the tip of the elastic contact portion 18 faces the contact window 14c so that the insertion of the first terminal 15 is completed. Therefore, stress is applied to the side walls of the grooves 14a and 14b of the terminal insertion hole 12 of the housing 11 only when the first terminal 15 is inserted, but when the insertion of the first terminal 15 is completed, the first terminal 15 Since there is no press-fitted stress anywhere, the influence of the stress on the housing 11 due to the press-fitting and fixing of the conventional terminal is greatly reduced.

  Next, it inserts in the terminal insertion hole 26 of the housing 25 from the free end side of the holding parts 34a, 34b of the second terminal 31. Then, the press-fit portions 35a and 35b of the inserted second terminal 31 come into contact with the side walls of the grooves 28a and 28b of the terminal insertion hole 26 and are pushed inward, and the holding portions 34a and 34b are elastically deformed inward. . When the second terminal 31 is further pushed in this state, the press-fit portions 35a and 35b that are elastically deformed from the side to the inside are press-fitted facing the portions bent outward from the pair of side surfaces of the terminal insertion hole 26, respectively. The portions 35a and 35b are not urged by the side walls of the grooves 28a and 28b, and the elastically deformed holding portions 34a and 34b are restored to their original states by their own elasticity, and the second terminal 31 is inserted. The second terminal 31 itself is fixed to the terminal insertion hole 26 by being able to come into contact with the engagement locking portions 27a and 27b orthogonal to the terminal insertion direction.

  In this way, as shown in FIG. 2, the first terminal 15 and the second terminal 31 are inserted into the terminal insertion holes 12 and 26, and the elastic contact portions 18 and 33 are in the state of facing upward, It arrange | positions in the position which faced the windows 14c and 28c. The first terminal 15 and the second terminal 31 thus arranged are covered by the housing 11 and a shield cover 36 fixed to the housing 11 so as to cover the elastic contact portions 18 and 33 from above the housing 11. A memory card or the like having an electrode (not shown) is detachably stored in the enclosed space, and the elastic contact portions 18 and 33 elastically contact the electrode (not shown) to obtain an electrical connection state. Can do it.

  Next, a modified example of the connector using only the first terminal will be described.

  As shown in FIGS. 5 and 6, the connector using only the first terminal 15 adds a fundamental improvement to the first terminal 15 formed of a conductive metal for press-fitting and fixing in a chained state. It is intended to provide a terminal having a structure in which a fragile (thin) housing 11 to be assembled by press-fitting and fixing is free from problems such as deformation due to residual stress.

The terminal insertion hole 12 that accommodates the first terminal 15 forms grooves 14a and 14b that do not open upward (planar side) and downward (bottom side), and the grooves 14a and 14b have a thickness of a holding portion 19 to be described later. The height (the height in the vertical direction) is the same as or slightly larger. A contact window 14c for allowing the tip of the elastic contact portion 18 of the first terminal 15 to face is formed at a position near the opening of the terminal insertion hole 12 in the terminal insertion direction, and the side walls of the grooves 14a and 14b are further removed. It has the structure provided with the engagement latching | locking part 13a, 13b dented in the direction. The width of the opening above the terminal insertion hole 12 is such that at least the tip of the elastic contact portion 18 can pass through, and the width above the terminal insertion hole 12 is wide enough to prevent a holding portion 19 described later from coming off.
The structure of this connector is different from the conventional structure in which the terminal insertion hole 12 for inserting and fixing the terminal provided in the housing 11 is simply press-fitted and fixed as in the prior art. A concave shape that extends in the insertion direction and is engageable and engageable with the press-fit portions 22a and 22b formed on the convex first terminal 15 having springiness on the side wall around the axis in the terminal insertion direction. A structure provided with the engagement locking portions 13a and 13b, that is, a lance shape is adopted.

  On the other hand, on the first terminal 15 side, the first terminals 15 are arranged in a row in a chained portion 16 that is removed after being press-fitted and fixed, and each first terminal 15 includes a plate member. The elastic contact part 18 which is formed in a rectangular shape and is connected to the holding part 19 to give elasticity by cutting the free end part ahead of the base end part 17 into a U-shape is formed. A holding part 19 having a rectangular frame structure arranged so as to surround the contact part 18 is provided, and further laterally outwardly at a substantially intermediate position between the doubly-supported spring-shaped pieces 21a and 21b on both sides of the holding part 19. The lance-like press-fitting portions 22a and 22b are formed so as to protrude from the top. The elastic contact portion 18 can come into contact with the contact of the mounted mating connector.

  The pieces 21a and 21b of the holding portion 19 provided with the press-fit portions 22a and 22b have a so-called elastically deformable spring property. If the press-fit portions 22a and 22b are pushed from the outside, the press-fit portions 22a and 22b are pressed. The portion provided with is elastically deformed in the inner direction.

Further, the width in the width direction of the terminal insertion hole 12 and the width in the width direction of the holding portion 19 are somewhat narrower in the width direction of the holding portion 19 or wide in the width direction of the terminal insertion hole 12. The width can be increased somewhat (in FIG. 5, the relationship of W1> W2), and accordingly, a structure having a certain clearance between the width of the holding portion 19 and the width of the terminal insertion hole 12 can be achieved. Become.
Even if a certain clearance occurs, the fixing is performed by the press-fitting portions 22a and 22b engaging with the engagement locking portions 13a and 13b provided on the side surface of the terminal insertion hole 12 of the lance structure. Since the portion 19 is not press-fitted and fixed in the width direction, even if a certain clearance occurs between the width in the width direction of the terminal insertion hole 12 and the width in the width direction of the holding portion 19, The structure has no direct relationship.

A state in which the first terminals 15 are respectively press-fitted into the terminal insertion holes 12 of the housing 11 having such a configuration and incorporated into the housing 11 will be described.
First, the terminal 11 is inserted into the terminal insertion hole 12 of the housing 11 from the free end side of the first terminal 15 connected to the chain portion 16. Then, the press-fit portions 22a and 22b of the inserted first terminal 15 hit the side wall of the terminal insertion hole 12 and are pushed inward, and the pieces 21a and 21b provided with the press-fit portions 22a and 22b of the holding portion 19 are formed. Elastically deforms inward. When the first terminal 15 is further pushed in this state, the press-fit portions 22a and 22b of the pieces 21a and 21b that are elastically deformed in the inner direction are formed at portions where the pair of side surfaces of the terminal insertion hole 12 are bent outward. The press-fit portions 22a and 22b are no longer urged by the side walls of the grooves 14a and 14b, and the state of the elastically deformed holding portion 19 is restored to its original state by its own elasticity, and the first terminal 15 insertion direction The first terminal 15 itself is fixed to the terminal insertion hole 12 by being able to come into contact with the engagement locking portions 13a and 13b orthogonal to the terminal insertion direction.

  As described above, when initially inserted, it is elastically deformed inward by the protrusion of the press-fit portions 22a and 22b, and press-fitted against the friction between the side walls of the grooves 14a and 14b of the terminal insertion hole 12 and the press-fit portions 22a and 22b. When the pair of side surfaces of the terminal insertion hole 12 face outwardly bent portions and the press-fitting portions 22a and 22b are not urged by the side walls of the grooves 14a and 14b, the elastically deforming holding portion 19 It returns to its original state by elasticity, and the tip of the elastic contact portion 18 faces the contact window 14c so that the insertion of the first terminal 15 is completed. Accordingly, stress is applied to the side walls of the grooves 14a and 14b of the terminal insertion hole 12 of the housing 11 only when the terminal 15 is inserted, but when the insertion of the first terminal 15 is completed, the stress press-fitted by the first terminal 15 is Since it does not exist anywhere, the influence of the stress on the housing 11 due to the press-fitting and fixing of the conventional terminals is greatly reduced.

  Next, a modified example of the connector using only the second terminals will be described with reference to the drawings.

  As shown in FIGS. 7 and 8, a modification of the connector using only the second terminal 31 is not the frame-shaped configuration of the holding portions 34 a and 34 b on the second terminal 31 side, but the base end of the elastic contact portion 33. It has a structure in which press-fit portions 35a and 35b formed to protrude outwardly are provided at the tips of holding portions 34a and 34b extending in the shape of arms from both ends. In the holding portions 34 a and 34 b, the press-fit portions 35 a and 35 b provided at the tips are elastically deformed inward in the same manner as the first terminal 15.

In this connector structure, first, a terminal insertion hole 26 for inserting and fixing a terminal provided in the housing 25 is a terminal insertion hole for receiving the terminal, and is provided in the holding portions 34a and 34b of the second terminal 31 on both side walls. A structure having engagement locking portions 27a and 27b engaged and locked with the press-fit portions 35a and 35b, that is, a lance structure is formed.
The terminal insertion hole 26 that accommodates the second terminal 31 forms grooves 28a and 28b that do not open upward (planar side) and downward (bottom side), and the grooves 28a and 28b are each holding portions 34a described later. , 34b has a height (vertical height) that is the same as or slightly larger than the thickness of 34b. A contact window 28c for allowing the tip of the elastic contact portion 33 of the second terminal 31 to face is formed at a position near the opening of the terminal insertion hole 26 in front of the terminal insertion direction, and the side walls of the grooves 28a and 28b are outward. It has a structure provided with engagement locking portions 27a and 27b which are recessed from the side surface and bent outward from the side surface of the terminal insertion hole 26. The width of the opening above the terminal insertion hole 26 is such that at least the tip of the elastic contact portion 33 can pass therethrough, and the upper portion of the terminal insertion hole 26 is open with a width that prevents holding portions 34a and 34b to be described later. .

  On the other hand, on the second terminal 31 side, the second terminals 31 are arranged in a state of being arranged in a row by a chain portion 32 that is removed after being press-fitted and fixed, and each second terminal 31 has a rectangular shape. The elastic contact portion 33 includes holding portions 34a and 34b extending from both ends of the base end portion in an arm shape, and press-fit portions 35a and 35b formed to protrude outward from the distal ends of the holding portions 34a and 34b extending in the arm shape. It has a configuration with. In the holding portions 34a and 34b, press-fit portions 35a and 35b provided at the tips are elastically deformed inward.

The manner in which the second terminals 31 are press-fitted into the terminal insertion holes 26 of the housing 25 having the above-described configuration and are incorporated into the housing 11 will be described.
First, it inserts into the terminal insertion hole 26 of the housing 25 from the free end side of the holding portions 34a and 34b of the second terminal 31 connected to the chain portion 32. Then, the press-fit portions 35a and 35b of the inserted second terminal 31 hit the side wall of the terminal insertion hole 26 and are pushed inward, and the holding portions 34a and 34b are elastically deformed inward. When the second terminal 31 is further pushed in this state, the press-fit portions 35a and 35b that are elastically deformed from the side to the inside are press-fitted facing the portions bent outward from the pair of side surfaces of the terminal insertion hole 26, respectively. The portions 35a and 35b are not urged by the side walls of the grooves 28a and 28b, and the elastically deformed holding portions 34a and 34b are restored to their original states by their own elasticity, and the second terminal 31 is inserted. The second terminal 31 itself is fixed to the terminal insertion hole 26 by being able to come into contact with the engagement locking portions 27a and 27b orthogonal to the terminal insertion direction.
When the second terminal 31 is fixed to the housing, the press-fit portions 35a and 35b are accommodated in the engagement locking portions 27a and 27b, and the holding portions 34a and 34b are accommodated in parallel along the grooves 28a and 28b. The holding portions 34a and 34a have a complementary role in positioning the contact with respect to the housing in the planar direction.

As described above, a connector having a structure in which a terminal is press-fitted and fixed by providing a holding part with springiness on the terminal side and engaging the press-fitting part with an engagement locking part provided in the terminal insertion of the terminal insertion hole has been described. However, the structure is not limited to the structure in which the holding part provided with the spring property is provided in the width direction of the terminal, but may be a structure provided with the holding part provided with the spring property in the plate thickness direction of the terminal.
Furthermore, if the terminal is provided with a holding part with springiness, it becomes possible to make a terminal with a certain clearance between the terminal and the terminal insertion hole, and the dimensional accuracy in the width direction of the terminal Can be made loose.

  By adopting a lance structure for fixing terminals in a chained state, a connector is provided that can eliminate residual stress generated during press-fitting and suppress deformation of a fragile housing.

It is the front-plane-right side perspective view which showed the structure of the housing which comprises the connector which concerns on this invention, a 1st terminal, and a 2nd terminal. It is the front-plane-right side perspective view which shows a mode that the 1st terminal and the 2nd terminal were built in the housing and the shield cover was covered. It is the front-plane-right side perspective view which cut the center of the groove | channel of the housing of this invention parallel to the bottom face similarly. FIG. 5 is a front-plane-right side perspective view in which only the housing is cut in parallel with the bottom surface of the groove with the first terminal and the second terminal incorporated therein. FIG. 2 is a plan view showing a state in which a first terminal according to the present invention is incorporated into a housing, in which only the housing is cut in parallel with the bottom of the groove at the center. FIG. 5 is a plan view showing a state in which the first terminal is incorporated and fixed in the housing, and only the housing is cut in parallel with the bottom of the groove at the center. FIG. 9 is a plan view showing a state in which only the second terminal of the present invention is incorporated into the housing, and only the housing is cut in parallel with the bottom surface at the center of the groove. FIG. 5 is a plan view showing a state in which the second terminal is incorporated and fixed in the housing, and only the housing is cut in parallel with the bottom surface of the groove. FIG. 3 is a front-plane-right side perspective view showing a state in which a terminal in a conventional technique is press-fitted and fixed, with only the housing cut in the center of a terminal insertion hole parallel to the bottom surface. It is the elements on larger scale which show a mode that press-fitted and fixed in FIG.

Explanation of symbols

11 Housing 12 Terminal insertion hole 13a Engagement locking part 13b Engagement locking part 14a Groove 14b Groove
14c Contact window 15 First terminal 16 Chain portion 17 Base end portion 18 Elastic contact portion 19 Holding portion 21a Piece 21b Piece 22a Press-fit portion 22b Press-fit portion 25 Housing 26 Terminal insertion hole 27a Engagement lock portion 27b Engagement lock portion 28a groove 28b groove
28c Contact window 31 Second terminal 32 Chain portion 33 Elastic contact portion 34a Holding portion 34b Holding portion 35a Press-fit portion 35b Press-fit portion 36 Shield cover

Claims (1)

In the housing (11, 25) provided with a plurality of terminal insertion holes (12, 26),
The holding part (19, 34a, 34b) and an elastic contact part (18, 33) that makes electrical contact with the counterpart electrode,
The holding part (19, 34a, 34b) is formed of a conductive metal provided with press-fitting parts (22a, 22b, 35a, 35b) formed in a convex shape wider than the width of the terminal insertion hole (12, 26). A connector for fixing the terminals (15, 31) to the housing (11, 25) by press-fitting,
The holding part (19, 34a, 34b) provided with the press-fitting part (22a, 22b, 35a, 35b) formed in a convex shape has a spring property to elastically deform ,
Terminal insertion holes (12, 26)
Provided with grooves (14a, 14b, 28a, 28b) that do not open upward and downward,
The terminal insertion holes (12, 26) communicate with each other, and concave engagement locking portions (13a, 13b, 27a, 27b) are provided on the outer sides of the side walls of the grooves (14a, 14b, 28a, 28b). When inserting the terminals (15, 31) into the insertion holes (12, 26),
Due to the elastic deformation of the holding portions (19, 34a, 34b), the press-fit portions (22a, 22b, 35a, 35b) hit the side walls of the grooves (14a, 14b, 28a, 28b), and the terminals (15, 31) are inserted. Upon completion,
Press-fit portions (22a, 22b, 35a, 35b ) for fixing the terminals (15, 31) to the terminal insertion holes (12, 26) by returning the elastically deformed holding portions (19, 34a, 34b) to the original state. ) Is provided with concave engagement locking portions (13a, 13b, 27a, 27b) for engaging and locking.

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