JPH0461775A - Ic socket - Google Patents

Abstract

PURPOSE:To improve poor contacting performance by sliding the contacting part of a contact piece with opening and closing of a lid, and thereby increasing the friction frequency with the lead of an IC. CONSTITUTION:A lid 13 is provided with a wedge-shaped projection 16 which pushes a spring part 11a of a contact piece 11, when the lid 13 is shut, and allows the contacting part 11b to slide with the lead 14 of an IC. When the IC is accommodated in a socket body 10 and the lid 13 is shut, the wedge-shaped projection 16 on the lid 13 pushes the spring 11a of the contact piece 11, so that the contacting part 11b of the contact piece 11 slides while touching the IC lead 14. Therefore, the lead 14 makes friction with the contacting part 11b to remove contaminants therefrom. Thus poor contacting performance of the contact piece 11 with IC lead 14 can be improved.

Description

[Detailed Description of the Invention] [Summary] Regarding IC sockets used in IC testing machines, etc., the purpose of this invention is to improve poor contact between contacts and IC leads. In an IC socket having a lid which is provided with a large number of contacts each having a spring portion, and which presses and fixes an IC placed thereon with leads in contact with the contacts, when the lid is closed, the springs of the contacts The lid is provided with a wedge-shaped protrusion that presses the contact portion and slides the contact portion against the IC lead.

[Industrial application field]

The present invention relates to an IC socket used in an IC testing machine or the like.

[Conventional technology]

FIG. 4 shows a conventional IC socket. This consists of a socket body 1 made of an insulator on which a large number of contacts 2 having a 0-shaped spring part 2a and a contact part 2b formed at one end of the spring part are arranged, and a pin on the socket body 1. 3 and a lid 4 attached to the lid 4 so as to be openable and closable. Then, the lead 5 is brought into contact with the contact 2 of the socket body 1.
By placing the C6 and closing the lid 4, the IC leads 5 are pressed against the contacts 2 by the projections 4a provided on the lid 4.

[Problem to be solved by the invention]

In the above-mentioned conventional IC socket, the contact between the contact 2 and the lead 5 of the IC 6 is established by the protrusion 4a of the lid 4.
The contact was made only by the repulsive force caused by the deflection of the spring portion 2a of the contactor 2 that was pressed through the contactor 2. Therefore, there is no self-cleaning effect on the contact surface, and contact failure is likely to occur due to dirt on the contact surface, which poses a problem in that the contact surface must be frequently cleaned in order to perform accurate measurements.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to provide an IC socket in which poor contact between a contactor and an IC lead is improved.

[Means for Solving the Problem] In order to achieve the above object, the IC socket of the present invention has the following features:
A large number of contacts 11 having contact portions 11b and spring portions 11a are disposed on a socket body 10 made of an insulating material, and a lead 14 is placed in contact with the contacts 11.
In an IC socket having a lid 13 that presses and fixes the
When the lid 13 is closed, the spring portion 11a of the contact 11
The lid 13 is characterized in that a wedge-shaped projection 16 is provided on the lid 13 for pressing the contact portion 11b to slide the contact portion 11b against the IC board 14.

[For production]

When ICl3 is accommodated in the socket body 10 and the lid 13 is closed, the wedge-shaped protrusion 16 provided on the lid 13 contacts the contact 1.
In order to press the spring portion 11a of the contactor 11, the contact portion 11b of the contactor 11 slides while being in contact with the lead 14 of the IC.

This sliding causes friction between the lead 14 and the contact portion 11b, and dirt can be removed from the contact portion 11b.

〔Example〕

FIG. 1 is a diagram showing an embodiment of the present invention.

As shown in the figure, in this embodiment, a socket body made of an insulator is provided with a large number of contacts 11 having a U-shaped spring part 11a and a contact part 11b formed at one end of the spring part. 10, and a lid 13 which is attached to the socket main body 10 with a pin 12 so as to be freely openable and closable, and has a projection 13a that presses the lead 14 of the ICl 3 placed so that the lead 14 contacts the contactor 11. This is the same as the conventional example explained in FIG. be.

The operation of this embodiment configured as described above will be explained with reference to FIG. In this figure, the same parts as in FIG. 1 are designated by the same reference numerals.

In Figure a, the ICl 3 is placed so that the lead 14 is in contact with the contact portion 11b of the contactor 11, and the lid 13 is closed.
This shows the state just before it completely closes.

The lead 14 of ICl3 is attached to the lead holding protrusion 1 on the lid 13.
3a and the contact portion 11b of the contactor 11.

The wedge-shaped protrusion 16 of the lid 13 is about to start contacting the spring portion 11a of the contactor 11.

Figure b shows a state in which the lid 13 is completely closed from the state shown in figure a. Figures a to b (the original position of the lid 13 is shown with a chain double-dashed line).

), the protrusion 13a that presses the lead 14 presses the lead 14 against the contact portion 11b of the contactor 11. At the same time, the wedge-shaped protrusion 16 presses the spring portion 11a of the contactor 11 in the direction of arrow A with its slope 16a. As a result, the contact 11
is bent by its spring portion 11a, and moves the contact portion 11b in the direction of arrow A. At this time, the lead 14 of ICl3 is connected to the protrusion 1
Since the contact portion 11b of the contactor 11 is pressed by the contact member 3a, the contact portion 11b slides while contacting the lead 14. This sliding action removes dirt from the contact surface of the contact portion 11b. In this way, the contact surface is cleaned every time an IC is inserted or removed.

FIG. 3 is a diagram showing another embodiment of the present invention.

In this figure, the same parts as in FIG. 1 are designated by the same reference numerals.

This embodiment differs from the previous embodiment in that an arc-shaped projection 17 is provided on the slope of the wedge-shaped projection 16 provided on the lid 13, as shown in the figure, and the rest is the same as the previous embodiment.

In this embodiment configured as described above, when the lid is closed, the arcuate protrusion 17 presses the spring portion 11a of the contact 11 in the direction of arrow A, and the contact point between the protrusion 17 and the spring portion 11a is circular. After getting over the arc-shaped protrusion, the contact portion 11b of the contact 11 moves back and forth each time the lid 13 is closed, and the cleaning effect can be further improved.

FIG. 3 is a diagram showing another embodiment of the present invention, and FIG. 4 is a diagram showing a conventional IC socket.

In the figure, 10 is the connector body, 11 is the contact, 11a is the spring part, 11b is the contact part, 13 is the lid, 1
4 is a lead, 15 is an IC, 16 is a wedge-shaped projection, and 17 is an arc-shaped projection.

〔Effect of the invention〕

As explained above, according to the present invention, by sliding the contact portion of the contact by opening and closing the lid, the frequency of friction with the IC lead can be increased, and poor contact can be improved. .

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a diagram for explaining the operation of the embodiment of the present invention,

Claims (1)

[Claims] 1. A socket body (10) made of an insulator is provided with a contact portion (1
1b) and a large number of contacts (11
) is arranged, and the contact (11) is provided with a lead (14).
A lid (
13), the lid (13)
When the lid (13) is closed, a wedge-shaped protrusion (16) that presses the spring portion (11a) of the contactor (11) and slides the contact portion (11b) against the IC lead (14) is attached to the lid (13). ). 2. The IC socket according to claim 1, characterized in that an arc-shaped projection (17) is provided on the slope of the wedge-shaped projection (16) so that the contact portion (11b) of the contactor can slide back and forth. IC socket.