WO2014181703A1

WO2014181703A1 - Joint connector

Info

Publication number: WO2014181703A1
Application number: PCT/JP2014/061638
Authority: WO
Inventors: 晋司 ▲児▼玉; 寿典山本
Original assignee: 矢崎総業株式会社
Priority date: 2013-05-10
Filing date: 2014-04-24
Publication date: 2014-11-13
Also published as: CN105191017B; CN105191017A; JP2014220211A; JP6093645B2

Abstract

The present invention is provided with: a joint terminal (20) in which contacts extend from a tabular support-plate part (22) and come into contact with another terminal; and a resin housing (30) having, formed therein, a press-fit hole (33) into which the support-plate part (22) of the joint terminal (20) is press fitted. In the press-fit hole (33), a plurality of ribs (41), which extend along a direction in which the support-plate part (22) is press fitted into the press-fit hole (33), are formed, with a space therebetween in a direction orthogonal to the aforementioned press-fitting direction, on facing surfaces (33a) facing front-and-rear surfaces (22a) of the support-plate part (22).

Description

Joint connector

The present invention relates to a joint connector provided with a joint terminal in a housing.

Conventionally, there is a joint connector in which a joint terminal is press-fitted in a resin housing as a joint connector that is connected to a counterpart connector to ensure a conductive state (for example, see Patent Document 1).

Japanese Laid-Open Patent Publication No. 7-73938

In the above-described joint connector, the press-fitting hole formed in the housing into which the joint terminal is press-fitted is formed such that the upper and lower gap dimensions are substantially equal to the thickness dimension of the joint terminal. The joint terminal press-fitted into the press-fitting hole is held in surface contact with both the upper and lower opposing surfaces that face the joint terminal in the press-fitting hole.

By the way, the housing may vary in dimensions due to errors in its manufacture. If the upper and lower gaps of the press-fitting hole are small with respect to the thickness of the joint terminal, the friction at the surface contact portion between both opposing surfaces of the press-fitting hole and the front and rear surfaces of the joint terminal becomes extremely large. Accordingly, a large insertion force is required to press-fit the joint terminal into the housing, and the workability of mounting the joint terminal on the housing is reduced. Also, if the upper and lower clearances of the press-fit holes are large relative to the thickness of the joint terminal, the joint terminal mounted on the housing will rattle or shake, resulting in poor fitting with the mating connector or mating connector mating terminal There is a risk of poor contact.

In this way, the joint connector manages the joint clearance of the press-fitting hole in the housing with high accuracy in order to prevent the joint terminal from shaking and shaking while ensuring good mounting workability of the joint terminal to the housing. Had to do.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to support the joint terminal on the housing without rattling or shaking while ensuring good mounting workability of the joint terminal to the housing. In addition, an object of the present invention is to provide a joint connector that can facilitate the management of dimensions.

In order to achieve the above-described object, the joint connector according to the present invention is characterized by the following (1) to (3).
(1) a joint terminal in which a contact that contacts the mating terminal is extended from a flat support plate portion;
A resin housing in which a press-fitting hole into which the support plate portion of the joint terminal is press-fitted is formed;
With
In the press-fitting hole, a plurality of ribs along the press-fitting direction of the support plate part into the press-fitting hole are spaced in a direction perpendicular to the press-fitting direction on at least one of the opposing surfaces facing the front and back surfaces of the support plate part. It must be formed with a gap.
(2) In the joint connector configured as described in (1) above, the ribs are formed on both opposing surfaces facing the front and back surfaces of the support plate portion of the press-fitting hole.
(3) In the joint connector having the above-described configuration (1) or (2), the gap dimension in the press-fitting hole is slightly smaller than the thickness dimension of the support plate portion.

In the joint connector having the above configuration (1), a plurality of ribs along the press-fitting direction of the support plate part into the press-fitting hole are orthogonal to the press-fitting direction on at least one of the opposing surfaces facing the front and back surfaces of the support plate part in the press-fitting hole. It is formed with an interval in the direction of. For this reason, when press-fitting the support plate portion of the joint terminal into the press-fitting hole, the rib comes into contact with at least one of the front and back surfaces of the support plate portion. Since these ribs are formed along the press-fitting direction of the support plate part into the press-fitting holes, the ribs are in line contact with at least one of the front and back surfaces of the support plate part. For this reason, the friction with respect to a support plate part can be reduced. In addition, by controlling the protruding dimensions of the ribs so that the gap dimension in the press-fitting hole is an appropriate dimension, the joint terminal in which the support plate is press-fitted into the press-fitting hole can be supported by the housing without rattling or shaking. be able to.
In the joint connector having the configuration (2), the ribs are formed on both of the opposing surfaces facing the front and back surfaces of the support plate portion of the press-fitting hole. For this reason, a rib will carry out line contact with both the front and back of a support plate part, and the friction with respect to a support plate part is further reduced.
In the joint connector having the configuration (3), the gap dimension in the press-fitting hole is slightly smaller than the thickness dimension of the support plate portion. For this reason, it is possible to ensure an appropriate pressure input of the support plate portion into the press-fitting hole and to securely support the joint terminal on the housing while reducing friction with respect to the support plate portion press-fitted into the press-fitting hole.

According to the present invention, it is possible to support the joint terminal to the housing without rattling or shaking while ensuring good mounting workability of the joint terminal to the housing, and to facilitate the management of dimensions. Possible joint connectors can be provided.

The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a front view showing a joint connector according to the present embodiment. FIG. 2 is an exploded perspective view of the joint connector according to the present embodiment. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1 showing the joint connector according to the present embodiment. 4 is a cross-sectional view taken along the line BB in FIG. 1 showing the joint connector according to the present embodiment. FIG. 5 is a perspective view of a joint terminal constituting the joint connector. 6 (a) and 6 (b) are diagrams showing joint terminals constituting the joint connector, in which FIG. 6 (a) is a front view, and FIG. 6 (b) is a cross-sectional view of FIG. It is C sectional drawing. 7 (a) to 7 (c) are views showing a housing constituting the joint connector, in which FIG. 7 (a) is a front view and FIG. 7 (b) is a DD in FIG. 7 (a). FIG. 7C is a cross-sectional view taken along line EE in FIG. 7A. FIG. 8 is an enlarged view of a portion F in FIG. 7A showing the press-fitting hole of the housing. 9 (a) and 9 (b) are views showing the press-fitted state of the support plate portion of the joint terminal into the press-fitting hole of the housing, and FIG. 9 (a) is a partial horizontal sectional view, FIG. 9B is a partial cross-sectional view in the vertical direction. FIGS. 10A and 10B are views showing the press-fitted state of the support plate portion of the joint terminal into the press-fitting hole of the housing in the joint connector according to the reference example, and FIG. FIG. 10B is a partial cross-sectional view in the horizontal direction.

Hereinafter, an example of an embodiment of a joint terminal according to the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing a joint connector according to this embodiment. FIG. 2 is an exploded perspective view of the joint connector according to the present embodiment. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1 showing the joint connector according to the present embodiment. 4 is a cross-sectional view taken along the line BB in FIG. 1 showing the joint connector according to the present embodiment. FIG. 5 is a perspective view of a joint terminal constituting the joint connector. 6 (a) and 6 (b) are diagrams showing joint terminals constituting the joint connector, in which FIG. 6 (a) is a front view, and FIG. 6 (b) is a cross-sectional view of FIG. It is C sectional drawing. 7 (a) to 7 (c) are views showing a housing constituting the joint connector, in which FIG. 7 (a) is a front view and FIG. 7 (b) is a DD in FIG. 7 (a). FIG. 7C is a cross-sectional view taken along line EE in FIG. 7A. FIG. 8 is an enlarged view of a portion F in FIG. 7A showing the press-fitting hole of the housing. 9 (a) and 9 (b) are views showing the press-fitted state of the support plate portion of the joint terminal into the press-fitting hole of the housing, and FIG. 9 (a) is a partial horizontal sectional view, FIG. 9B is a partial cross-sectional view in the vertical direction.

1 to 4, the joint connector 10 includes two joint terminals 20 and a housing 30. In FIG. 4, hatching to the cross section of the joint terminal 20 is omitted in order to express the position of the rib 41.

The joint connector 10 is to be mated and connected to the mating connector. When the mating connector is mated and connected, the joint terminal 20 is electrically connected to the mating terminal of the mating connector.

As shown in FIGS. 5, 6 (a), and 6 (b), the joint terminal 20 is formed by pressing a conductive metal plate made of copper or a copper alloy, and includes a contact 21 and a support plate portion. 22. The joint terminal 20 is preferably subjected to tin plating on the surface for improving electrical connection performance.

The support plate portion 22 is formed in a flat plate shape and is provided across the width direction of the joint terminal 20. A plurality of contacts 21 are formed on one side of the support plate portion 22.

The contacts 21 come into contact with the mating terminals of the mating connector when connected to the mating connector, extend in the same direction from the support plate 22, and are arranged in parallel at intervals in the width direction of the joint terminal 20. ing.

The support plate portion 22 has a plurality of protruding plate portions 24 protruding to the opposite side of the contact 21, and these protruding plate portions 24 are formed with locking holes 25 in the center portion in the width direction. Yes. Locking claw portions 26 are formed on both side portions of each protruding plate portion 24. The locking claw portion 26 protrudes obliquely toward the side opposite to the protruding direction of the protruding plate portion 24.

As shown in FIGS. 7A to 7C, the housing 30 is formed of, for example, a synthetic resin such as plastic, and the mating connector is inserted into the connection side with the mating connector. It is formed in a box shape having a recess 31. A wall 32 is provided on the opposite side of the fitting recess 31 of the housing 30 from the opening 31a.

The wall portion 32 is formed with a press-fitting hole 33 into which the support plate portion 22 of the joint terminal 20 is press-fitted. The press-fitting holes 33 are formed along the width direction of the housing 30, and two press-fitting holes 33 are arranged in parallel to each other at positions spaced apart from each other in the vertical direction.

The press-fitting hole 33 has locking recesses 37 at portions corresponding to the protruding plate portions 24 of the joint terminals 20, and the protruding plate portions 24 of the joint terminals 20 are fitted into these locking recesses 37. . A locking projection 38 is formed in the locking recess 37 on the surface facing the protruding plate portion 24 to be fitted, and the locking projection 38 locks the protruding plate portion 24 to be fitted. The protruding plate portion 24 is locked by entering the hole 25.

As shown in FIG. 8, the press-fitting hole 33 of the housing 30 includes a plurality of protrusions on both the upper and lower opposing surfaces 33 a facing the front and back surfaces 22 a of the support plate portion 22 press-fitted into the press-fitting hole 33. Ribs 41 are formed at opposing positions. These ribs 41 are formed along the press-fitting direction of the support plate part 22 into the press-fitting holes 33, and are arranged in parallel in a direction orthogonal to the press-fitting direction of the support plate part 22. Two of these ribs 41 are formed at a position sandwiching the locking projection 38 in the locking recess 37. Further, the upper and lower gap dimension G in the press-fitting hole 33 is slightly smaller than the thickness dimension T of the support plate portion 22 of the joint terminal 20.

In the housing 30, the joint terminal 20 is assembled to the housing 30 by press-fitting the support plate portion 22 from the opening 31 a side of the fitting recess 31 into the upper and lower press-fitting holes 33 of the housing 30.

When the joint terminal 20 is assembled in this way, the protruding plate portion 24 is fitted into the locking recess 37, so that the locking claw portion 26 of the protruding plate portion 24 is locked as shown in FIG. As shown in FIG. 9 (b), the locking projection 38 enters the locking hole 25 of the protruding plate portion 24 while biting into the side wall 37 a of the recess 37. As a result, the joint terminal 20 is maintained in a state where it is securely press-fitted into the press-fitting hole 33.

As described above, by pressing the support plate portion 22 of the joint terminal 20 into the press-fitting hole 33, the joint terminal 20 is supported vertically with respect to the wall portion 32 that is a fitting reference, and a plurality of contacts of the joint terminal 20 21 is disposed in the fitting recess 31 of the housing 30.

Further, when the support plate portion 22 of the joint terminal 20 is press-fitted into the press-fitting hole 33, the rib 41 contacts the front and back surfaces 22 a of the support plate portion 22. Since these ribs 41 are formed along the press-fitting direction of the support plate part 22 into the press-fitting holes 33, the ribs 41 are in line contact with the front and back surfaces 22a of the support plate part 22 (FIG. 9A). ), And the friction with respect to the support plate portion 22 is reduced. Further, when the support plate portion 22 of the joint terminal 20 is press-fitted into the press-fit hole 33, the ribs 41 formed on the upper and lower opposing surfaces 33a of the press-fit hole 33 serve as guides so that the support plate portion 22 of the joint terminal 20 is smooth. To the press-fitting hole 33.

Here, FIG. 10A and FIG. 10B are diagrams showing the press-fitted state of the support plate portion of the joint terminal into the press-fitting hole of the housing in the joint connector according to the reference example, and FIG. Is a partial cross-sectional view in the horizontal direction, and FIG. 10B is a partial cross-sectional view in the vertical direction.

As shown in FIGS. 10A and 10B, when the support plate portion 22 of the joint terminal 20 is press-fitted into the press-fit hole 33 where the rib 41 is not formed, the front and back surfaces 22a of the support plate portion 22 and The opposing surface 33a of the press-fitting hole 33 is in surface contact with each other (see the mesh portion in FIG. 10A). In this case, if the gap dimension G of the facing surface 33a of the press-fit hole 33 is smaller than the thickness dimension T of the support plate portion 22, the surface contact between the facing surface 33a of the press-fit hole 33 and the front and back surfaces 22a of the support plate portion 22 is achieved. The friction at the part becomes extremely large. For this reason, a large insertion force is required to press-fit the support plate portion 22 of the joint terminal 20 into the press-fitting hole 33 of the housing 30, and workability of mounting the joint terminal 20 to the housing 30 is reduced.

In addition, if the gap dimension G of the facing surface 33a of the press-fitting hole 33 is larger than the thickness dimension T of the support plate portion 22 of the joint terminal 20, the joint terminal 20 attached to the housing 30 rattles or shakes. Therefore, there is a risk of poor fitting with the counterpart connector and poor contact with the counterpart terminal of the counterpart connector.

On the other hand, according to the joint connector 10 according to the present embodiment, the support plate portion 22 is press-fitted into the press-fitting hole 33 on both the opposing surfaces 33a of the press-fitting hole 33 facing the front and back surfaces 22a of the support plate portion 22. A plurality of ribs 41 along the direction are formed at intervals in a direction orthogonal to the press-fitting direction. For this reason, when the support plate part 22 of the joint terminal 20 is press-fitted into the press-fitting hole 33, the rib 41 comes into contact with the front and back surfaces 22 a of the support plate part 22. Since these ribs 41 are formed along the press-fitting direction of the support plate part 22 into the press-fitting holes 33, the ribs 41 are in line contact with the front and back surfaces 22 a of the support plate part 22. The friction with respect to the support plate part 22 can be reduced. Further, by controlling the projecting dimension of the rib 41 so that the gap dimension G in the press-fitting hole 33 is an appropriate dimension, the joint terminal 20 in which the support plate portion 22 is press-fitted into the press-fitting hole 33 is very easily rattled. It can be supported by the housing 30 without shaking.

Further, since the gap dimension G in the press-fitting hole 33 is slightly smaller than the thickness dimension T of the support plate part 22, the press-fitting hole 33 is reduced while reducing friction with respect to the support plate part 22 press-fitted into the press-fitting hole 33. The joint terminal 20 can be reliably supported by the housing 30 by securing an appropriate pressure input to the support plate portion 22.

In the above embodiment, the ribs 41 are formed on both opposing surfaces 33a of the press-fitting hole 33, but the ribs 41 may be formed on either one of the opposing surfaces 33a of the press-fitting hole 33. Even in this case, the rib 41 is in line contact with the support plate portion 22 on the facing surface 33a side where the rib 41 is formed, and friction when the support plate portion 22 is press-fitted into the press-fitting hole 33 can be reduced. Further, the mounting operation of the joint terminal 20 to the housing 30 can be facilitated.

Note that the present invention is not limited to the above-described embodiment, and modifications, improvements, and the like can be made as appropriate. 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.

Here, the features of the embodiment of the joint connector according to the present invention described above are summarized and listed in the following [1] to [3], respectively.

[1] A joint terminal (20) in which a contact (21) that contacts a mating terminal is extended from a flat support plate portion (22);
A resin housing (30) in which a press-fitting hole (33) into which the support plate portion of the joint terminal is press-fitted is formed;
With
In the press-fitting hole, a plurality of ribs (41) along the press-fitting direction of the support plate part into the press-fitting hole are orthogonal to the press-fitting direction on at least one of the opposing surfaces facing the front and rear surfaces of the support plate part. Joint connector formed at intervals in the direction.
[2] The joint connector according to [1], wherein the ribs are formed on both opposing surfaces facing the front and back surfaces of the support plate portion of the press-fitting hole.
[3] The joint connector according to [1] or [2], wherein a gap dimension (G) in the press-fitting hole is slightly smaller than a thickness dimension (T) of the support plate portion.

Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.

This application is based on a Japanese patent application filed on May 10, 2013 (Japanese Patent Application No. 2013-100758), the contents of which are incorporated herein by reference.

According to the present invention, it is possible to support the joint terminal to the housing without rattling or shaking while ensuring good mounting workability of the joint terminal to the housing, and to facilitate the management of dimensions. it can. The present invention having this effect is useful for a joint connector having a joint terminal in a housing.

DESCRIPTION OF SYMBOLS 10 Joint connector 20 Joint terminal 21 Contact 22 Support plate part 22a Front and back 30 Housing 33 Press-fit hole 33a Opposing surface 41 Rib G Gap dimension T Thickness dimension

Claims

A joint terminal in which a contact that contacts the mating terminal is extended from a flat support plate part;
A resin housing in which a press-fitting hole into which the support plate portion of the joint terminal is press-fitted is formed;
With
In the press-fitting hole, a plurality of ribs along the press-fitting direction of the support plate part into the press-fitting hole are spaced in a direction perpendicular to the press-fitting direction on at least one of the opposing surfaces facing the front and back surfaces of the support plate part. Joint connector formed by opening.
The joint connector according to claim 1, wherein the ribs are formed on both opposing surfaces facing the front and back surfaces of the support plate portion of the press-fitting hole.
The joint connector according to claim 1 or 2, wherein a gap dimension in the press-fitting hole is slightly smaller than a thickness dimension of the support plate portion.