JPH0777144B2 - IC socket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is particularly applicable to mounting an IC carrier holding and fixing a flat IC package and connecting the leads and contact pins of the IC package. IC socket

[Conventional technology]

FIG. 7 shows a configuration example of a conventional IC socket of this type. In the figure, 21 is an IC carrier that holds an IC package,
Reference numeral 22 is a socket body in which a large number of contact pins 23, 23 to be connected to the leads of the IC package are embedded, 24 and 24 'are a pair of lid bodies pivotally attached to the socket body 22, and 25 and 25' are the lids. It is a coil spring that gives the body 24, 24 'a habit of opening.

And in this IC socket, the lead and contact pin 23
When connecting the IC carrier 21 to the socket body 22 in which the lids 24 and 24 'are opened by the coil springs 25 and 25'.
Is mounted at a predetermined position, and then the lids 24 and 24 'are closed to press the IC carrier 21 against the socket body 22 to connect the leads and the contact pins 23.

[Problems to be Solved by the Invention]

However, in such a conventional IC socket, the lids 24, 2
In order to perform the opening / closing operation of 4 ′, it was necessary to manually operate against the elastic force of the coil springs 25, 25 ′, and therefore the mounting and dismounting work of the IC carrier 21 had to be troublesome. .

The present invention has been made in view of the above circumstances, and an object thereof is to provide an IC socket of this type in which the IC carrier can be easily and reliably inserted and removed.

[Means and Actions for Solving the Problems]

In the IC socket according to the present invention, an outer frame is attached to the socket body so as to be movable up and down through a bullet means, and the vertical movement of the outer frame is used to open and close the mounted IC carrier through a link mechanism. The carrier holding metal fitting is provided, and the IC carrier can be inserted and removed by moving the outer frame up and down.

According to the present invention, when the outer frame is pushed down with respect to the socket body, the carrier holding metal fitting is opened so that the IC carrier can be inserted, and after the IC carrier is inserted, the outer frame is pushed up by the elastic force of the bullet means, and at that time, Through the link mechanism, the open carrier retainer is closed and the IC carrier is pressed and fixed. To remove the mounted IC carrier, simply push down the outer frame again. In this way, inserting and removing the IC carrier is as simple as pushing down the outer frame.

〔Example〕

An embodiment of the IC socket according to the present invention will be described below with reference to FIGS. 1 to 6. In the figure, 1 is, for example, a flat type IC package that is elastically clamped by the locking claws 1a and 1a.
The IC carrier 2 to be fixed (FIG. 2) is a socket body adapted to accommodate the IC carrier 1 at a predetermined position, and the socket body 3 is provided in a large number in the socket body 2, and the accommodated IC carriers 1 (see FIG. (See Fig. 1, two-dot chain line) The contact pins 4 in which the leads of the IC package come into contact with the contact portions 3a thereof are outer frames mounted on the socket body 2 so as to be vertically movable by a certain stroke. is there. Here, the outer frame 4 is urged upward by a coil spring 6 (FIGS. 3 and 4), for example, four coil springs 6 are provided on a pedestal 5 integrated with the socket body 2.

Reference numeral 7 denotes a rotary plate pivotally mounted on four side portions of the socket body 2 via a support shaft 8. Reference numeral 9 denotes a rotary plate which is planted in the outer frame 4 and is fitted in a long hole 7a of the rotary plate 7. A drive pin for rotating the rotating plate 7 around the support shaft 8 is formed in a gate shape, and one end of each arm 10a on both sides is pinned to the rotating plate 7 via a connecting pin 11. The carrier holding metal fitting 12 made of, for example, a sus member or the like is so constructed that the holding portion (the above-mentioned gate-shaped upper beam portion) 10b is laid across the socket body 2 (FIG. 3) by being joined. When it is implanted in the socket body 2 and is fitted in the elongated hole 10c of the carrier holding metal fitting 10 and the outer frame 4 is in the upper position (FIG. 4), the holding portion 10b of the carrier holding metal fitting 10 is shown in FIG. IC housed as shown in
It is a guide pin that guides the upper surface of the carrier 1 so as to press it. A link mechanism is composed of these members.

Since the IC socket according to the present invention is configured as described above, when the IC carrier 1 is first mounted, if the outer frame 4 is pushed down against the elasticity of the coil spring 6, the drive pin 9 moves downward. The rotating plate 7 is left-handed around the support shaft 8 through the elongated hole 7a, whereby the arm portion 10 of the carrier holding metal fitting 10 is provided.
a moves upward through the connecting pin 11 and is guided by the guide pin 12 at this time. Therefore, the arm 10a
As a result of applying rightward while raising, the holding portion 10b is opened as shown in FIG. 6, and the IC carrier 1 can be inserted into the socket body 2. And IC carrier 1
Is set at a predetermined position, and when the pushing down on the outer frame 4 is released, the outer frame 4 is pushed up by the elastic force of the coil spring 6. As a result, the drive pin 9 moves upward,
Contrary to the case of pressing down, the carrier holding metal fitting 10 is closed by turning the rotating plate 7 to the right, and the holding portion 10b presses the housed IC carrier 1 from above and pressurizes and fixes it.

When the IC carrier 1 thus mounted is pulled out from the socket body 2, the outer frame 4 is first pushed down to open the carrier holding metal fitting 10 in this case as well. 2 can be easily taken out. After removing the IC carrier 1,
When the pushing down on the outer frame 4 is released, the outer frame 4 naturally returns to the upper position by the elastic force of the coil spring 6.

Since the carrier holding metal fitting 10 is opened and closed with respect to the IC carrier 1 via the link mechanism in this manner, the IC carrier 1 can be simply operated by pushing down the outer frame 4.
Can be easily and reliably inserted and removed, so that the fatigue of the operator is significantly reduced, and the leads of the IC package and the contact pins 3 can be connected more accurately.
Also, as described above, the outer frame 4 need only move up and down,
Although it can be easily performed by hand, it is extremely advantageous for automating work using an automatic machine or the like.

〔The invention's effect〕

As described above, according to the IC socket of the present invention, the IC carrier can be inserted / removed by a one-touch operation, and the work can be improved in this way, so that the operator does not feel tired even when handling a large amount. In addition, the contact pins and leads can be connected more reliably, and the mechanism of the automatic machine can be simplified and the processing speed can be increased.

[Brief description of drawings]

1 is a longitudinal sectional view of an embodiment of an IC socket of the present invention, FIG. 2 is a plan view of an IC carrier to be mounted on the IC socket of the present invention, and FIGS. 3 and 4 are IC sockets of the present invention. And FIG. 6 are partial side views for explaining the operation of the link mechanism according to the present invention, and FIG. 7 is a conventional IC.
It is a longitudinal cross-sectional view of a socket. 1 ... IC carrier, 2 ... Socket body, 3 ... Contact pin, 4 ... Outer frame, 5 ... Pedestal, 6 ... Coil spring, 7 ... Rotating plate, 8 ... Spindle, 9 ... … Drive pins, 10…
… Carrier retainer, 11 …… Connecting pin, 12 …… Guide pin.

Claims (1)

[Claims] 1. An IC socket in which a lead of the IC package and a contact pin of the socket body are connected by mounting an IC carrier in which the IC package is elastically sandwiched by locking claws to the socket body. , A carrier holder for mounting an outer frame on the socket body so as to be able to move up and down through an ammunition means, and for opening and closing the IC carrier mounted through a link mechanism by moving the outer frame up and down. An IC socket characterized in that a metal fitting is provided so that the IC carrier can be inserted and removed by vertically moving the outer frame.