WO2004093251A2

WO2004093251A2 - Electrical connector

Info

Publication number: WO2004093251A2
Application number: PCT/JP2004/005263
Authority: WO
Inventors: Takanori Kimata; Koji Aida
Original assignee: Iriso Electronics Co., Ltd.
Priority date: 2003-04-15
Filing date: 2004-04-13
Publication date: 2004-10-28
Also published as: WO2004093251A3; JP2004348969A

Abstract

An electrical connector where contact failure, solder separation, etc. of terminals caused by thermal expansion and contraction of the terminals, impact, and vibration can be reliably prevented. Each terminal (30) is provided with a movable portion (34) capable of elastically deforming in the left/right direction, forward/backward direction, and up/down direction, and this makes it possible that relative movement in any direction of each of housings (10, 20) is absorbed. In this structure, relative movement of each of the housings (10, 20) is limited to within a predetermined range by each stopper (40), so that each terminal (30) can be reliably prevented from breaking without involving excessive deformation of the movable portion (34) of each terminal (30).

Description

Specification

Electrical Connector Technical Field

The present invention relates to an electrical connector attached to a printed circuit board or the like and used to electrically connect a pair of boards. Background art

Conventionally, this type of electrical connector includes a first housing arranged on one connection object side, a second housing arranged on the other connection object side, and a first housing arranged on one end side. And a plurality of conductive terminals having the other end held by the second housing. The housings are provided so as to be movable in the left-right direction (in the arrangement direction of the terminals). It is known that a movable portion is provided between the side of the housing and the other end, which can be elastically deformed in the left-right direction of each housing (for example, Japanese Patent Laid-Open Publication No. 2-1066882). reference.).

However, in the electric connector, since the respective housings can move relative to each other only in the left-right direction, the movement in the up-down direction (the connection direction of the terminals) cannot be allowed. Therefore, for example, when one housing side is connected to a board and the other housing side is connected to a connector attached to another board, each terminal thermally expands or contracts due to the thermal influence of the usage environment. When this occurs, since the terminals of each connector are fixed to each substrate, the contact portions of the terminals slide with each other, causing a problem of poor contact. In addition, since the electrical connector cannot allow movement in the front-rear direction (the direction orthogonal to the arrangement direction of the terminals), when an external shock or vibration occurs, the electric connector cannot move in the front-rear direction. There was a problem that the displacement could not be absorbed and the terminal was deformed and the soldering with the substrate was peeled off.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to reliably prevent poor contact of a terminal due to thermal expansion, thermal shrinkage, shock or vibration of a terminal, or peeling of soldering. It is an object of the present invention to provide an electrical connector which can be used. Disclosure of the invention

In order to achieve the above object, the present invention provides a first housing arranged on one connection object side, a second housing arranged on the other connection object side, and a first housing arranged on one end side. And a plurality of conductive terminals, the other ends of which are held by the second housing, wherein the housings are provided so as to be movable in the left-right direction, the front-rear direction, and the up-down direction. A movable portion capable of elastic deformation is provided between one end side and the other end side of each terminal in the left-right direction, the front-rear direction, and the up-down direction of each housing. A movement restricting means for restricting the mutual movement within a predetermined range is provided.

Thereby, the reciprocal movement of each housing can be absorbed in any of the left-right direction, the front-rear direction, and the up-down direction due to the elastic deformation of the movable portion of each terminal. Poor contact of the terminals due to vibration or peeling of the soldering can be reliably prevented. At this time, since the mutual movement of each housing is restricted within a predetermined range by the movement restricting means, the movable portion of each terminal is not excessively deformed, and the damage of each terminal can be reliably prevented. .

Further, according to the present invention, in the above configuration, the movable portion of each terminal is formed so as to bend in a meandering manner. Accordingly, the movable portions can be easily elastically deformed in the left-right direction, the front-rear direction, and the upward and downward directions, respectively, so that the respective housings can be reliably moved relative to each other.

Further, according to the present invention, in the above-described configuration, the movement restricting unit is provided at a predetermined position of one housing, and can be locked at a predetermined position of the other housing in the left-right direction, the front-rear direction, and the vertical direction. Is formed by As a result, the mutual movement of each housing can be reliably restricted by a simple structure, which is extremely advantageous for practical use.

Further, according to the present invention, in the above-described configuration, the movement restricting portion is formed by a separate component attached to one housing. This makes it easier to shape and assemble each housing, as compared to, for example, integrally forming a portion having a movement restricting function in each housing, thereby improving productivity. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view of an electrical connector showing one embodiment of the present invention.

FIG. 2 is a front view of the electrical connector.

Figure 3 is a side sectional view of the electrical connector.

FIG. 4 is a side view of the electrical connector.

FIG. 5 is a side view showing an attached state of the electric connector. BEST MODE FOR CARRYING OUT THE INVENTION

1 to 5 show one embodiment of the present invention. The electrical connector shown in FIG. 1 includes an insulating first housing 10 and a second housing 20 formed separately from each other, and a plurality of terminals 3 held in each housing 10, 20. 0, and a pair of stopper members 40 as a movement restricting portion that restricts the mutual movement of the housings 10 and 20.

The first housing 10 has an opening 11 for fitting a mating connector on the upper surface, and a plurality of terminal holes 12 for holding the respective terminals 30 are provided on both sides in the front-rear direction in the opening 11. They are provided at equal intervals in the horizontal direction. Grooves 13 for fixing each stopper member 40 are provided on both front and rear sides on both left and right sides of the first housing 10.

The second housing 22 has a plurality of terminal holes 21 for holding the terminals 30 on both sides in the front-rear direction, and the terminal holes 21 are provided at equal intervals in the left-right direction. Further, on the lower surface of the second housing 20, projections 22 engaging with the substrate are provided on both sides in the left-right direction, respectively, and each projection 22 is inserted into a hole provided in the substrate and engages with the substrate. It is about to stop. The left and right side surfaces 23 of the second housing 20 are formed so as to be able to be locked to the respective stopper members 40 in the left and right directions, and the respective side members 23 are locked to the respective stopper members 40 in the front and rear directions and the vertical direction. Possible projections 24 are provided.

Each terminal 30 is made of a conductive metal plate, and is arranged in a row on each side of the connector body 10 in the front-rear direction. One end of each terminal 30 is provided with a contact portion 31 with which a terminal of a mating connector comes into contact. The contact portion 31 is inserted into the first housing 10 in the front-rear direction to thereby form the first housing. It is designed to engage with 10. The other end of each terminal 30 engages with the second housing 20 The engaging portion 32 is held in the second housing 20 by press-fitting the protrusion 25 provided on the second housing 20 into the forked portion. It is supposed to be. A connecting portion 33 connected to the substrate is provided on the other end of each terminal 30, and the connecting portion 33 is formed to extend downward from the engaging portion 32. Also, a movable portion 34 is provided between the contact portion 31 of each terminal 30 and the engagement portion 32 so as to be elastically deformable in the front-rear direction, up-down direction, and left-right direction of each housing 10, 20. The movable portion 34 is formed to have a small width and bend in a meandering shape.

Each stopper member 40 is formed by bending a plate-like member into a substantially rectangular ring shape, and is fixed to the first housing 10 by press-fitting both ends thereof into the grooves 13 of the first housing 10. ing. In this case, each stop member 40 is arranged on the side of the second housing 20, and each projection 24 of the second housing 20 is arranged inside each stop member 40. That is, as shown in FIG. 2, the distance XI in the left-right direction (X direction) of each stopper member 40 is formed wider than the distance X2 in the left-right direction of both side surfaces 23 of the second housing 20. Has been done. Also, as shown in FIG. 4, the inner dimension Y1 of the stopper member 40 in the front-rear direction (Y direction) is formed to be wider than the front-rear dimension Y2 of the protrusion 24, and the lower surface of the protrusion 24 and the second The space Z 1 in the vertical direction (Z direction) with respect to the upper surface 25 of the housing 20 is formed to be wider than the thickness Z 2 of the lower end of the stopper member 40.

In the electrical connector configured as described above, the connection portion 33 of each terminal 30 is soldered to one substrate A as shown in FIG. Together with one of the substrates A. Also, insert each terminal 51 of the connector 50 attached to the other board B into the first housing 10 and connect each terminal 51 of the connector 50 to the contact portion 31 of each terminal 30. Thus, the substrates A and B are electrically connected to each other.

Here, if the substrates A and B are displaced in the left-right direction (X direction), the front-rear direction (Y direction), or the up-down direction (Z direction), the movable portion 34 of each terminal 30 Due to the elastic deformation, the first housing 10 moves with respect to the second housing 20 following the boards A and B, and the displacement of the boards A and B is absorbed. If the terminals 30 and 51 undergo thermal expansion or contraction, the movable parts of the terminals 30 34 is elastically deformed in the vertical direction (Z direction), and the thermal expansion or contraction of the terminals 30 and 51 is absorbed.

In the case described above, the movement of the first housing 10 in each direction with respect to the second housing 20 is restricted to a predetermined range by each stopper member 40. That is, since each housing 10 and 20 can move by XI-X2 in the X direction, Y1-Y2 in the Y direction, and Zl-Z2 in the Z direction, the movable portion 3 of each terminal 30 can be moved. 4 does not deform excessively.

As described above, according to the electrical connector of the present embodiment, since the movable portion 34 that can be elastically deformed in the left-right direction, the front-rear direction, and the up-down direction is provided in each terminal 30, the housing 10, 20 Reciprocal movement can be absorbed in any of the directions, and terminal failure due to thermal expansion, thermal shrinkage, impact or vibration of the terminal, or separation of soldering can be reliably prevented. At this time, since the mutual movement of the housings 10 and 20 is restricted within a predetermined range by the stopper members 40, the movable portion 34 of each terminal 30 is not excessively deformed. Terminal 30 can be reliably prevented from being damaged.

Further, since the movable portion 34 of each terminal 30 is formed so as to bend in a meandering shape with a small width, the movable portion 34 can be easily elastically deformed in the left-right direction, the front-rear direction, and the up-down direction. The housings 10 and 20 can be reliably moved relative to each other.

Further, each of the stopper members 40 is formed by an annular member in which the projections 24 provided on both side surfaces 23 of the second housing 20 are disposed inside, and the side end of each of the stopper members 40 and the The movement in the left-right direction (X direction) is restricted by the engagement with both side surfaces of the housing 20, and the front-rear direction (by the engagement between the inner surface of each stop member 40 and the protrusion of the second housing 20). Since the movement in the Y direction and the vertical direction (Z direction) is regulated, the movement of each housing 10 and 20 in each direction can be reliably regulated by a simple structure, and put into practical use. This is extremely advantageous. In this case, since each stopper member 40 is formed by a separate part attached to the first housing 10, each of the housings 10, 20 has a different function compared to the case where a part having a stopper function is integrally formed. The housings 10 and 20 can be easily formed and assembled, and the productivity can be improved.

Claims

The scope of the claims

1. A first housing arranged on one connection object side, a second housing arranged on the other connection object side, one end side is held by the first housing, and the other end is An electrical connector comprising a plurality of conductive terminals held by a housing 2 and each housing being movable in the left-right direction, the front-rear direction, and the up-down direction.

Provided between the one end and the other end of each terminal are movable portions that can be elastically deformed in the left-right direction, the front-rear direction, and the up-down direction of each housing, respectively.

Equipped with movement restriction means for restricting the mutual movement of each housing in the left-right direction, front-rear direction, and vertical direction within a predetermined range.

An electrical connector, characterized in that:

2 · The movable part of each terminal is formed to bend in a meandering shape

The electrical connector according to claim 1, wherein:

3. The movement restricting means is formed by a movement restricting portion which is provided at a predetermined position of one housing and can be locked at a predetermined position of the other housing in the left-right direction, the front-rear direction, and the up-down direction.

3. The electrical connector according to claim 1, wherein:

4. The movement restricting part is formed by another part attached to one housing.

The electrical connector according to claim 3, wherein: