JPH0345437Y2 - - Google Patents

Description

[Detailed explanation of the idea] <Industrial application field> This invention relates to pins for IC sockets.

<Summary of the invention> This invention is an IC socket pin in which an inner contact is loaded into an outer sleeve.
The outer sleeve is formed into a rectangular tube shape over a portion or the entire length thereof, and the press-fitting position of the pin into the socket housing and the alignment position of the inner contact with respect to the pin are made constant.

<Background of the invention> Conventionally, as shown in FIG. 5, this type of IC socket pin has a cylindrical inner contact 42 loaded in an outer sleeve 41. As shown in FIG. 2, the socket housing 5 is press-fitted and fixed into a stopper hole 51 arranged in a row in the socket housing 5. However, since the outer sleeve 41 of the pin 4 is formed into a cylindrical shape by cutting, the position of the pin 4 with respect to the stopper hole 51 and the alignment 4 of the contact 42 with respect to the pin 4 may vary.
3 is not constant, and therefore the contact position and contact area between the IC lead 3 and the inner compact 42 differ for each pin 4 as shown in FIG. Moreover, the pin 4 and the stopper hole 51 of the housing 5
Since all of the pins are circular, in the case of wrapping terminals where torque is applied, the pins rotate around their axis during the wrapping operation, causing problems such as coming off or loosening.

<Purpose of the invention> The purpose of this invention is to provide a new IC socket pin that can solve the above problems all at once by devising the outer and inner shapes of the outer sleeve. do.

<Structure and effect of the invention> In order to achieve the above object, in this invention, a part or the entire length of the outer sleeve is formed into a rectangular cylinder shape with a cross section of four or hexagonal, and the alignment of the inner contact is adjusted to each wall surface. It will be made. According to the above configuration, in this invention, when the pins are press-fitted into the rectangular retaining holes arranged in advance in the socket housing, the inner contacts of each pin are all in the same position and the same attitude, and the inner contacts of the pins are all in the same position and in the same attitude, and the pins are completely aligned with the IC leads. This has the effect of achieving the intended purpose of realizing optimal and uniform contact.

<Description of Examples> FIG. 1 shows an IC socket. The socket is
Numerous square fixing holes 1 to match the IC lead spacing
The housing 1 includes pins 1 arranged in a row, and pins 2 according to the present invention that are press-fitted into each stopper hole 11.

The pin 2, which is a feature of the present invention, is
It has an outer sleeve 21 that is press-fitted into the housing, and the entire length of the outer sleeve 21 (FIG. 2) or a part of the press-fitted part of the housing (FIG. 3) has a rectangular cylindrical shape, such as a square or hexagonal cross section, and An inner contact 22 is loaded into the inner hole of the sleeve 21, and the inner contact 22 has a rectangular tube shape in a portion corresponding to the rectangular tube portion of the sleeve 21, and a plurality of alignments 23 are formed by split grooves. The vertical and horizontal groove portions correspond to the cylindrical wall 24.

As described above, in the present invention, a part or the entire length of the outer sleeve 21 in the socket pin 2 is formed into a rectangular tube shape, and each alignment 23 in the inner contact 22 is made to correspond to the cylinder wall 24 of the rectangular tube portion. When similar rectangular stop holes 11 are arranged in a row in the butt housing 1 and pins 2 are press-fitted into the holes, the position of each pin 2 with respect to the housing 11 is constant and does not rotate, and the alignment 23 of the inner contact 22 in the pin 2 is Localize at the same location.

Therefore, the desired effect of achieving optimal and uniform contact with the IC leads 3 is achieved. Furthermore, since the pin 2 is prevented from rotating by being press-fitted between the rectangular tube part of the outer sleeve 21 and the rectangular stopper hole 11 of the housing 1, problems such as loosening or coming off can be solved, and the configuration is simplified. It has excellent practical effects.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an IC socket to which the pin according to the present invention is applied, Figs. 2 and 3 are side views showing an example of the pin for an IC socket according to the present invention, and Fig. 4 is a line taken from Fig. 1. A cross-sectional view along
A diagram showing the contact status between the IC lead and the contact,
Fig. 5 is a side view of a conventional IC socket pin, Fig. 6 is a cross-sectional view of an IC socket to which the pin of Fig. 5 is applied, and Fig. 7 is a cross-sectional view along the line shown in Fig. 6, which shows an IC lead. It is a figure which shows the contact situation with a contact. 2...IC socket pin, 21...outer sleeve, 22...inner contact, 23...
...Alignment, 24...Cylinder wall.

Claims (1)

[Claims for Utility Model Registration] An IC socket pin in which an inner contact is loaded into an outer sleeve, characterized in that a part or the entire length of the outer sleeve is formed into a rectangular tube shape. The pin for an IC socket according to claim 1, wherein the rectangular tube portion of the outer sleeve has a polygonal cross section such as a square or hexagon. The pin for an IC socket according to claim 1, wherein the inner contact has a rectangular tube shape corresponding to the rectangular tube portion of the outer sleeve, and each alignment corresponds to the tube wall.