JPH10189105A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector hardly peeled with plating and giving stable contact when the pin connector is inserted or removed into or from pin contacts by providing a folding section folded nearly perpendicularly to the plate thickness direction on the contact section of each socket contact in the electric connector constituted of an insulator and the socket contacts pressed-in and fixed to the insulator. SOLUTION: A socket contact 14 is constituted of two contact piece 15 having contact sections 16 with a mating connector, a fixed section 18 fixed to an insulator 12, and a connection section 20 connected to a substrate, and the contact section 16 of the contact pieces 15 are folded nearly perpendicularly, preferably at 88-92 deg., to the plate thickness direction to form holding sections 22. Guide sections 24 for easily guiding the pin contacts 30 of a mating connector 26 are preferably provided at the tips of the contact pieces 15 at the desirable guide angle of 30-60 deg..

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 such as a personal computer.
In particular, the present invention relates to a structure of a socket contact of an electrical connector.

[0002]

2. Description of the Related Art FIG. 2A is a perspective view of a conventional socket contact 14, and FIG. 2B is a cross-sectional view showing a state where conventional male and female electrical connectors are fitted together. The conventional pin connector 26 includes a block 28 and a pin contact 30. The block 28 is made of an electrically insulating plastic and is manufactured by known injection molding or the like. The material of the block 28 is PBT / PE
T / 46PA / PPS / LCP and the like are used. The block 26 includes a plurality of pin contacts 28.
Is provided with a fixing hole 34 for inserting the. The pin contact 30 is made of metal, and is manufactured by a known press working or the like. As a material of the pin contact 30, good conductive brass, phosphor bronze, or beryllium copper is used. The pin contact 28 is mainly composed of three parts, a contact part, a fixed part, and a tail part in terms of its function. The contact portion is a portion for making contact with the socket contact 14 of the mating connector. The fixing part is a part for holding and fixing the pin contact 30 to the block 28. The tail portion is a portion inserted into the board 32 and soldered to the board 32.

[0003] A conventional socket connector 10 includes an insulator 1
2 and a socket contact 14. The insulator 12 is an electrically insulating plastic, and is manufactured by known injection molding or the like. The material of the insulator 12 is PBT / PET / 46PA / PPS / L
CP and the like are used. The insulator 12 holds and fixes a plurality of the socket contacts 14. The socket contact 14 is made of metal and is manufactured by a known press working or the like. Since the shape is as shown in FIG. 2A, the socket contact 14 is in a state of being removed from a plate-like metal by press working. As a material of the socket contact 14, good conductive brass, phosphor bronze, or beryllium copper is used. The socket contact 14 is mainly composed of three portions of two contact pieces 15, a fixing portion 18 and a connecting portion 20 in terms of its function. The contact piece 15 has a contact portion 16 which is a portion for making contact with the pin contact 30 of the mating connector. . The fixing part 18 is a part for holding and fixing the socket contact 14 to the insulator 12. The connection portion 20 is a portion inserted into the board 32 and soldered to the board 32.

[0004]

As described above, since the socket contact 14 is kept pressed from a plate-shaped metal plate by pressing, the socket contact 14 is not connected to the pin contact 30 of the pin connector 26. Contact part 1 to contact
6 is also a fracture surface. Therefore, there is a problem to be solved such that the plating of the male and female contacts is peeled off when the pin connector 26 is inserted into and removed from the pin contact 30, which makes the contact unstable and causes a contact failure. In addition, since the contact portion of the socket contact 14 has a broken surface, there is a problem that plating is difficult to attach.

According to the present invention, the contact portion 16 of the socket contact 14 is easily plated, and the plating is not easily peeled off when the pin connector 26 is inserted into or removed from the pin contact 30. It is an object to provide an electrical connector that does not cause a problem.

[0006]

This object can be achieved by providing the socket contact with a bent portion in which the contact portion is bent substantially perpendicularly to the thickness direction.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS At the tip of the contact piece 15, an inviting portion 24 is provided to facilitate inviting a pin contact 30 of a mating connector. By providing the invitation portion 24, it becomes easy to invite the pin contact 30 of the mating connector. The invitation portion 24 is preferably set to about 30 ° to 60 ° in consideration of the invitation angle of the pin contact 30. Further, the contact portion 16 is bent at 88 ° to 92 °. If it is not less than 92 ° or not more than 88 °, the contact portion with the pin contact 30 is not a surface contact but a point contact, and the expected effect cannot be obtained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIG. FIG. 1A shows a socket contact 1 of the present invention.
FIG. 4 is a perspective view of FIG. 4, and (B) is a cross-sectional view when the male and female electrical connectors of the present invention are fitted together. FIG. 2 is a plan view of the socket contact 14 of the present invention. The electrical connector 10 according to the present invention mainly includes an insulator 12 and a socket contact 14. In the present embodiment, the size of the electric connector 10 is 28 mm in length, 4 mm in width,
The thickness is about 6 mm. The length direction changes depending on the number of cores and the contact pitch. In this embodiment, the number of cores is 20 and the contact pitch is 2 to 2.54 mm. The size of the electric connector 10 is appropriately designed.

First, the socket contact 14 of the electric connector 10, which is a point of the present invention, will be described. The socket contact 14 is made of metal as in the related art, and is manufactured by a known press working or the like. This socket contact 14 is female. In this embodiment, the size of the socket contact 14 is 5 mm.
The width was 3 mm and the thickness was about 0.3 mm. The socket contact 14 is held and fixed to the insulator 12 by press fitting or the like. This socket contact 14
Is not particularly limited as long as it is a metal having good conductivity, and examples thereof include brass, phosphor bronze, and beryllium copper. Considering price and workability, phosphor bronze is preferred.

As a method of mounting the socket contact 14 on a substrate (not shown), a dip type or a surface mount type can be considered. In this embodiment, it is of a dip type. The socket contact 14 has a substantially flat plate shape, and is roughly divided into three parts, two contact pieces 15, a fixing part 18, and a connecting part 20, as in the conventional case. The two contact pieces 15 are connected by a fixing portion 18, and a contact portion 16 protruding inward is provided on the free end side. This contact portion 16
Is provided with a bent portion 22 which is bent substantially perpendicularly to the plate thickness direction. Nearly vertical means 88 ° to 92 °
In consideration of stable contact, 90 ° is preferable. The contact portion 16 is bent so that a portion that comes into contact with the pin contact 30 has a thicker surface. The distance between the two contact pieces 15 and the bent portion is the pin contact 3
The design is appropriately made in consideration of the contact pressure with zero. That is, the two contact pieces 15 and the fixing portion 18 are U-shaped. The bent portion 22 of the contact portion 16 is a portion that contacts the pin contact 30 of the mating connector. The two contact pieces 15 are required to have a spring property for contacting the pin contact 30 of the mating connector. The fixing part 18 includes a contact part 16.
, And the portion is connected to the connection portion 20. The contact shape is a so-called tuning fork type. Further, it is preferable to provide an invitation portion 24 at the tip of the contact piece 15 in order to easily invite the pin contact 30. The invitation portion 24 may have an angle in consideration of its role, but preferably has an angle of about 30 ° to 60 ° in consideration of the invitation angle of the pin contact 30.

The socket contact 14 of the present invention is manufactured as follows. First, a plate-shaped metal plate is removed in the shape of the socket contact 14. Next, the contact part 16 which is extracted in the shape of the socket contact 14 is
By bending once or twice, it is bent almost vertically, and the bent portion 22 is formed. Finally, the continuous socket contacts 14 are cut one by one.

Next, the insulator 12 of the socket connector 10
Will be described. The insulator 12 is an electrically insulating plastic and is manufactured by injection molding or the like of a known technique. Examples of the material of the insulator 12 include PBT, PET, 46PA (nylon), PPS, and LCP. Considering formability and cost, PBT is preferred. A plurality of the socket contacts 14 are held and fixed to the insulator 12. The insulator 12 is provided with an insertion hole 13 for fixing a predetermined number of the socket contacts 14. The size of the insertion hole 13 is appropriately designed according to the size of the socket contact 14. The pin connector 26 has the same structure as that of the related art, and includes a pin contact 30 and a block 28.

[0013]

The present invention has the following remarkable effects by taking the means described in detail above. Since the contact portion 16 is bent, the thickness of the bent portion 22 becomes a contact surface with the pin contact 30 of the mating connector. Therefore, when the pin connector 30 is inserted or removed, the plating of the contact does not come off and is stable. Contact is obtained,
Poor contact does not occur. By bending the contact portion 16, the plate thickness surface of the bent portion 22 becomes a contact surface with the pin contact 30 of the mating connector, so that plating can be easily applied to the contact surface. The leading end of the contact piece 15 is provided with an invitation portion 24 for facilitating the invitation of the pin contact 30 of the mating connector, so that the contact is not damaged when inserting and removing the pin contact 30 of the mating connector, and the contact is not damaged. Does not buckle. By setting the angle of the bent portion 22 to about 88 ° to 92 °, a portion that comes into contact with the pin contact 30 becomes a surface contact, so that the plating does not peel off.

[Brief description of the drawings]

FIG. 1A is a perspective view of a socket contact according to the present invention. (B) It is sectional drawing at the time of fitting the male and female electrical connectors of this invention.

FIG. 2 is a plan view of the socket contact of the present invention.

FIG. 3A is a perspective view of a conventional socket contact. (B) It is sectional drawing of the state which fitted the conventional male and female electrical connectors.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Socket connector 12 Insulator 13 Insertion hole 14 Socket contact 15 Contact piece 16 Contact part 18 Fixed part 20 Connection part 22 Bend part 24 Invitation part 26 Pin connector 28 Block 30 Pin contact 32 Substrate 34 Fixing hole 36 Solder

Claims (3)

[Claims] 1. A socket contact including two contact pieces having a contact portion with a mating connector, a fixed portion fixed to an insulator, and a connection portion connected to a substrate or the like, and an insulator holding and fixing the socket contact. The electrical connector according to claim 1, wherein the socket contact is provided with a bent portion having a contact portion bent substantially perpendicularly to a thickness direction. 2. The electrical connector according to claim 1, wherein an inducing portion is provided at an end of the contact piece to facilitate inducing a pin contact of a mating connector. 3. The electrical connector according to claim 1, wherein said contact portion is bent at 88 ° to 92 °.