JPH0377284A - Contact - Google Patents

Abstract

PURPOSE:To reduce a pitch in continuously forming contacts and enhance a material yield providing a lead part and the predetermined shape of a contact part respectively at both ends of an intermediate part fixed to an insulation body. CONSTITUTION:A lead part 13 is extended from one end of an intermediate part 13 fixed to an insulation body 12, and the other end thereof is bent via a curvature part 17 for forming a U-type contact part 15, thereby obtaining a contact 11 for clamping a mating terminal with the elastic force of a pair of contact parts 15. With the continuous formation of a plurality of the contacts 11, the pitch thereof can be made smaller than the pitch of a contact with the curvature part bent in a U-shape. As a result, material yield can be enhanced.

Description

[Detailed Description of the Invention] (Summary) Regarding contacts used in connectors, sockets, etc., the height of the contact portions is reduced by ensuring the elasticity of a pair of contact portions that sandwich a mating terminal to be connected.Connection The pitch when formed is reduced.The aim is to improve the material yield.An intermediate part fixed to the insulator, a pair of contact parts extending from one of the intermediate parts, and the other of the intermediate part A lead portion extending from the contact portion is integrally formed of metal, and the pair of contact portions, which sandwich the mating terminal to be connected at their tips, are formed in a substantially U-shape in the same direction. .

[Industrial application field]

The present invention relates to contacts used in various connectors, LSI package sockets, etc., and particularly to the structure of a contact in which a mating terminal is held between a pair of contact portions.

[Conventional technology]

Figure 4 is a perspective view of a conventional contact, and Figure 5 is a perspective view of a conventional contact.
FIG. 3 is an explanatory diagram of a method for forming a connection of the contacts shown in the figure.

In FIG. 4, a contact 1 made of metal has a lead portion 3 extending below an intermediate portion 2 fixed to an insulator, and a pair of contact portions 4 extending above the intermediate portion 2. In FIG. A pair of opposing contact portions 4 extending from the intermediate portion 2 bent into a cylindrical shape are configured to sandwich a mating terminal at their tips.

In FIG. 5, a connecting member 5 for connecting and forming a large number of contacts I is made by punching the contacts 1 into a developed shape 6, bending the contact portion 4 into a desired shape, and forming the intermediate portion 2 into a U-shape. .

When manufacturing a connector in which a plurality of contacts 1 are arranged at a constant pitch, such a connecting member 5 is used to cut the connecting portion of the contacts 1 after inserting the connected contacts 1 into an insulator. The connection formation pitch P needs to be larger than the development width A, which is at least twice the radius B of the contact 1.

However, in a connector where the pitch of fixing the contacts 1 to the insulator is, for example, 2.54o+m, it is not possible to make the connection formation pitch P = 2.54m+++, so conventionally the connections are formed at a connection formation pitch P of 5.08mm and arranged in the same row. The contacts to be aligned were inserted into the insulator twice, every other contact.

[Problem to be solved by the invention]

As explained above, in the conventional contact 1 in which a mating terminal is held between a pair of contact parts 4, the width A when unfolded is larger than the width B when completed, so the contact fixing pitch is, for example, 2.
．． With a 54 mm connector, all of the contacts 1 arranged in the same row could not be fixed at the same time.

Therefore, it is troublesome to fix the contacts 1 in the same row twice, and the material yield of the connecting member 5 is low, and the contact requires a predetermined length to ensure contact force with the mating terminal. The portion 4 has a problem in that it prevents the fixing insulator from becoming thinner.

[Means for Solving the Problems] The contact of the present invention aimed at solving the above problems has the following features:
According to FIG. 1 showing the embodiment, an intermediate portion 13 fixed to an insulator, a pair of contact portions 15 extending from one side of the intermediate portion 13, and a lead portion extending from the other side of the intermediate portion 13. 1
4 are integrally formed of metal, and the pair of contact portions 15, which sandwich the mating terminal to be connected at their tips, extend approximately U in the same direction.
It is characterized by being formed into a letter shape.

[Effect]

According to the above means, the pair of contact portions formed in a U-shape are
When a mating terminal is held between its tips, the part between the U-shaped bent part and the tip part is elastically deformed so as to bend outward of the mating terminal, and the part from the bent part to the base is twisted. The amount of elastic deformation of the entire contact area is
Since the amount of elastic deformation corresponds approximately to the amount of elastic deformation in the straight state before being bent into a U-shape, a predetermined contact pressure can be ensured even if the shape is formed into a U-shape and the height is lowered.

In addition, the width dimension of the contact development shape obtained by the above means is as follows:
Since the width dimension is the same as that of the completed contact, the pitch when connected is smaller than that of the conventional one in which the middle part is bent into a U-shape. Therefore, in a connector with a contact fixing pitch of 2.54 mm, Contacts can be inserted simultaneously and material yield is improved.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Contacts according to embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a contact according to an embodiment of the present invention;
2 is a perspective view showing a main part of a connector in which the contacts shown in FIG. 1 are fixed to an insulator, and FIG. 3 is an explanatory view of a method of forming a connecting member connecting the contacts shown in FIG. 1.

In FIGS. 1 and 2, the contact 11 has an intermediate part 13 implanted in the insulator 12, a lead part 14 extending downward from the intermediate part 13, and a lead part 14 extending upward from the intermediate part 13. A pair of contact portions 15 are integrally formed. The pair of contact portions 15 have a U-shape bent toward the front, and have a protrusion 16 projecting inward at the tip thereof.

A protrusion 18 that is press-fitted into the insulator 12 is formed on the side end surface of the intermediate portion 13, and the insulator 12 has a press-fit groove 19 of the protrusion 18, a hole 20 into which a mating terminal (not shown) is inserted, and a contact portion. 15 has a groove 21 into which it is inserted so as to be elastically deformable.

In the contact 11 configured in this manner, the pair of contact portions 15 sandwich a mating terminal inserted therebetween with the protrusions 16 . At this time, if the U-shaped bent part of the contact part 15 is 17, the tip part from the bent part 17 is elastically deformed so as to spread laterally as shown by the arrow C in the figure. The parts are elastically deformed to be twisted as shown by the arrows in the figure, and the contact part 15 as a whole can be displaced in the same way as the straight part before the bending part 17 is bent. The thickness of the insulator on which the insulator is implanted can be reduced by providing the bent portion 17.

In FIG. 3, a connecting member 21 in which a large number of contacts 1 are connected is made by punching a contact 11 into a developed shape 22, bending a contact portion 15 into a U-shape, and forming a middle portion of a lead portion 14. It is formed by bending.

In such a connecting member 21, the width of the developed shape 22 and the width of the contact 11 are the same, and the contact 11 is connected to the insulator 12.
For example, when the planting pitch is 2.54 nus,
The connection formation pitch P = 2.54 mm can be formed.

(Effects of the Invention) As explained above, in the contact according to the present invention, the pair of contact portions are formed in a U shape and the mating terminal is held between the tips of the contact portions, so that the distance between the U-shaped bent portion and the tip portion is The mating terminal is elastically deformed so as to bend outward, and the area from the bent part to the base is also elastically deformed so as to be twisted, so a predetermined contact pressure is ensured even if the mating terminal is formed into a U-shape and has a low height. will be done.

Furthermore, since the width of the unfolded shape is the same as the width of the completed contact, it is possible to form connections at a pitch smaller than that of the conventional one in which the intermediate part is bent into a U-shape.For example, the contact fixing pitch is 2. In the 54IIIm connector, contacts in the same row can be inserted at the same time, and the material yield is improved.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a contact according to an embodiment of the present invention, Fig. 2 is a perspective view showing the main parts of a connector in which the contact shown in Fig. 1 is fixed to an insulator, and Fig. 3 is shown in Fig. 1. An explanatory diagram of a contact connection formation method, Fig. 4 is a perspective view showing a conventional contact, and Fig. 5 is a perspective view of a conventional contact.
FIG. 3 is an explanatory diagram of a method for forming a connection of the contacts shown in the figure. In the figure, 12 is the insulator, 13 is the middle part, 14 is the lead part, 15 is the contact part,

Claims (1)

[Claims] An intermediate portion (13) fixed to an insulator (12), a pair of contact portions (15) extending from one of the intermediate portions (13), and a pair of contact portions (15) of the intermediate portion (13). A lead portion (14) extending from the other side
) are integrally formed of metal, and the pair of contact parts (
15) are formed in a substantially U-shape in the same direction.