JPH10189178A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent board or an insulator from being damaged when the board is inserted into the fitting groove of an electric connector, eliminate the displacement between the contact sections of the contacts of the electric connector and the pattern of the board, and prevent contact failure by providing a projection in the longitudinal direction of the fitting groove of the insulator holding and fixing the contacts and having the fitting groove inserted with the board. SOLUTION: An insulator 12 is provided with a coupling groove 20 inserted with a board 22, and a projection 26 is provided on one end side in the longitudinal direction of the fitting groove 20 side. The insulator 12 is provided with insertion holes fixing multiple contacts 14. Each contact 14 is constituted of a contact section 16 kept in contact with the pattern 24 of the board 22, a fixed section fixed to the insulator 12, and a connection section 18 connected to the board 22. Phosphor bronze or beryllium copper having good conductivity is used for the material of the contact 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connector used in an electronic device, and more particularly to a contact positioning structure for a substrate or a card.

[0002]

2. Description of the Related Art FIG. 3 is a cross-sectional view of a conventional electric connector 10 at the center in the width direction. Conventional electrical connector 1
0 is mainly composed of the contact 14 and the insulator 12.

The plurality of contacts 14 are held and fixed to the insulator 12 by press fitting or the like. The contact 14 is made of metal and is manufactured by a known technique such as press working. The insulator 12 is an electrically insulating plastic, and is manufactured by known injection molding or the like. This insulator 1
2 is provided with a fitting groove 20 into which a substrate 22 and a card are inserted. When the board 22 is inserted into the fitting groove 20, the contact portion 16 of the contact 14 fixed to the electrical connector 10 comes into contact with the pattern 24 of the board 22.

[0004]

SUMMARY OF THE INVENTION As described above, the substrate 22
Is inserted into the fitting groove 20 of the electrical connector 10 so that the contact portion 16 of the contact 14 and the pattern 24 of the substrate 22 come into contact with each other. In order to insert the substrate 22 into the fitting groove 20 of the electrical connector 10, the fitting groove 20
Is required to be at least about 0.3 to 0.5 mm larger than the length of the substrate 22 in consideration of the tolerance.
Therefore, by the amount of about 0.3-0.5mm increased,
There is a problem to be solved such that a positional displacement occurs between the contact portion 16 of the contact 14 of the electrical connector 10 and the pattern 24 of the substrate 22 and a contact failure occurs. In addition, the fitting groove 2 is used to prevent displacement.
If the difference between the length dimension of 0 and the length dimension of the board 22 is reduced, the board 22 or the insulator 12 may be damaged and damaged when the board 22 is inserted into the fitting groove 20 of the electrical connector 10. there were.

According to the present invention, when the board 22 is inserted into the fitting groove 20 of the electrical connector 10,
Can be inserted without damaging the electrical connector 10.
Contact portion 16 of contact 14 and pattern 2 of substrate 22
An object of the present invention is to provide an electrical connector 10 in which a contact failure does not occur without causing a displacement with respect to the connector 4.

[0006]

This object can be achieved by providing a protrusion in the length direction of the fitting groove of the insulator of the electrical connector.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Further, the projection 26 is provided with a spring property. By providing the spring property, the substrate 22 is not damaged when it is inserted, and the substrate 22 can be easily pressed in one direction of the fitting groove 20. Further, the protruding portion is formed as a separate component having a spring property. By using a separate part having spring properties, the moldability of the insulator 12 can be improved, and the protrusion 26 is less likely to be worn.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1A shows an electric connector 10 according to the present invention.
FIG. 2B is a perspective view of the electric connector 1 and the substrate 22.
FIG. 2 is a cross-sectional view taken along a line 0 in the center in the width direction. FIG. 2 is a perspective view in the case where the protrusion 26 is formed as a separate component. The electrical connector 10 of the present invention mainly includes the contact 14 and the insulator 12.
It is composed of Although the size of the electric connector 10 varies in size, in this embodiment, the length is 36 mm and the width is 5 mm.
mm and the height is about 7 mm. The length varies depending on the contact pitch size and the number of cores. In this embodiment, the contact pitch is 0.635 mm and the number of cores is 100. The contact pitch may be 0.5 to 1.27 mm or the like, the number of cores may be 10 to 100 cores, or the like. In this embodiment, a straight dip type is illustrated as the shape of the contact tail, but it may be a surface mount (hereinafter referred to as SMT) type or an L-type dip type.

First, the insulator 12 which is a point of the present invention will be described. This insulator 12 is also manufactured by well-known injection molding or the like as in the prior art. As the material of the insulator 12, heat resistance and workability are considered as in the past,
PBT, PET, PA, PPS, LCP and the like are used. Considering heat resistance and dimensional stability, LCP is preferred. The insulator 12 is provided with a fitting groove 20 into which the substrate 22 is inserted. The length dimension of the fitting groove 20 is
In order to facilitate insertion of the substrate 22, the length of the substrate 22 is set to be larger than the length of the substrate 22 by about 0.3 to 0.5 mm. The insulator 12 is provided with a protrusion 26 at one end in the length direction of the fitting groove 20. The protrusion 26 is for positioning the contact portion 18 of the contact 14 and the pattern 24 of the substrate 22 by pressing the substrate 22 in one direction. The size and shape of the protrusion 26 may be any size and shape as long as the above-mentioned role can be satisfied. The size and shape are appropriately designed according to the difference between the length of the fitting groove 20 of the electrical connector 10 and the length of the substrate 22. This projection 2
6 should have a spring property. The insulator 12 is provided with an insertion hole for fixing a plurality of contacts 14. The contact 14 is fixed to the insertion hole of the insulator 12 by press fitting or the like.

Next, the contact 14 is generally formed by a contact portion 16 which comes into contact with the pattern 24 of the substrate 22 and the insulator 1.
2 and a connecting portion 18 connected to a substrate or the like
It consists of three parts. The contact 14 is the insulator 1
2 and is manufactured by a known press working or the like as in the past. As a material of the contact 14,
Phosphor bronze and beryllium copper with good conductivity are used. Beryllium copper is preferred in consideration of spring properties and durability.

Next, the case where the projection 26 is formed as a separate component will be described. The positioning member 30 of the separate component includes:
It comprises a substantially C-shaped projecting portion 27 and an engaging portion 28 fixed to the insulator 12. This positioning member 3
As the material of 0, a metal or an electrically insulating plastic may be used as long as the protrusion 27 can fulfill the role of the protrusion 26 described above. Considering durability and spring properties, metals are preferred. If metal, stainless steel, iron, copper alloy and the like can be mentioned, and considering spring properties, copper alloys are preferred. Projection 2
The size and shape of 7 are appropriately designed in consideration of the same as when manufactured integrally with the insulator 12. When the projection 26 is formed as a separate component, a locking hole (not shown) for fixing the positioning member 30 to the insulator 12 is provided. The positioning member 30 is fixed to the insulator 12 by press fitting or the like.

[0012]

The present invention has the following remarkable effects by the above-described structure. By providing the protrusion 26 on one side of the insulator 12 in the longitudinal direction, the substrate can be pressed against the reference surface side, so that the position of the contact portion 16 of the contact 14 and the pattern 24 of the substrate 22 do not shift. Therefore, no contact failure occurs. -Since the protrusion 26 has a spring property, the board 22 can be easily inserted into the electrical connector 10, and the board 22 can be easily pressed against the reference surface. -Since the protrusion 26 has a spring property, the substrate 22 and the insulator 12 are not damaged when the substrate 22 is inserted into the electrical connector 10.

[Brief description of the drawings]

FIG. 1A is a perspective view of an electrical connector and a substrate of the present invention. (B) is a cross-sectional view of the electric connector cross-section at the center in the width direction.

FIG. 2 is a perspective view in a case where a projection is formed as a separate component.

FIG. 3 is a cross-sectional view of a conventional electric connector cross-sectional at the center in the width direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electric connector 12 Insulator 14 Contact 16 Contact part 18 Connection part 20 Fitting groove 22 Substrate 24 Pattern hole 26 Projection part 27 Projection part 28 Engagement part 30 Positioning member

Claims (3)

[Claims] An electrical connector comprising a contact and an insulator having a fitting groove for holding and fixing a plurality of contacts and inserting a substrate, wherein a length direction of the fitting groove of the insulator is provided. An electrical connector, wherein a projection is provided on the electrical connector. 2. The electrical connector according to claim 1, wherein the projection has a spring property. 3. The electrical connector according to claim 1, wherein the protrusion is formed of a separate component having a spring property.