JP2003157941A - Ic socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an IC socket capable of evenly pressing a cover member by single hand using an operation lever, surely inserting an IC package by an even pressure, and suitably releasing contacts without causing disorder. SOLUTION: The IC socket comprise a socket body having a base board part, a plurality of contacts mounted to the socket body, an IC package put on the socket body, a vertically movable cover member, a plurality of contact opening/closing operation parts rotatably mounted to the peripheral part of the socket body at the inside of the cover member so as to open/close the contact, and a socket releasing mechanism evenly pressing the cover member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC socket having a socket opening mechanism and, more particularly, to an open top type IC socket having an operating lever that evenly presses a cover member.

[0002]

2. Description of the Related Art Conventionally, in an IC socket of an inspection device for inspecting an IC package or the like as an electric component, there are a contact held by a socket body and an external contact of an IC package mounted on such a socket body. IC sockets that open and close with IC leads are known.

An example of such a conventional IC socket is shown in FIGS. 5 and 6 as an IC socket to which a quat flat lead type IC package can be applied.

As shown, a conventional IC socket 1
00 is a socket body 10 fixed to a printed circuit board or the like.
2 and a cover member 1 which can be moved up and down and whose central portion is open
03 and a plurality of contacts 105 provided on the socket body 102, and the central IC package mounting portion 1
The IC package is mounted on the terminal 06, and the IC lead of the IC package is connected to the contact 105.

[0005]

However, in such a conventional IC socket, it is necessary to uniformly press the upper surface of the cover member in order to open the contact. Has no special problems, but some problems occur in the case of manual work.

[0006] One of the problems is that it is difficult to apply uniform pressure manually, and furthermore, when the IC package is inserted into the IC socket, the IC socket is operated with one hand and the other hand is used to operate the IC package. Since the work efficiency is significantly reduced due to the insertion, and further, the uniform pressure cannot be applied, the post-insertion of the IC package occurs, causing damage or failure of the IC package and damaging the IC leads. There are some problems such as being lost.

Therefore, in order to solve such a problem in the prior art, the object of the present invention is to pressurize the cover member with the operating lever to enable uniform pressurization with one hand,
An object of the present invention is to provide an IC socket having a socket opening mechanism that can surely insert an IC package by uniform pressure, does not cause any trouble, and preferably opens contacts.

[0008]

In order to achieve the above-mentioned object, an IC socket of the present invention comprises a socket body having a substrate portion, a plurality of contacts mounted on the socket body, and the socket body. An IC package mounted on the substrate, a cover member that can move up and down, and a plurality of contact opening / closing operations that are rotatably provided in the peripheral portion of the socket body within the cover member so as to open and close the contacts. An IC socket having a member has a socket opening mechanism that uniformly presses the cover member.

Further, the IC socket of the present invention is characterized in that the socket opening mechanism has an operation lever pivotally supported on one side of the socket body.

Further, the IC socket of the present invention is characterized in that the operation lever has a pressing portion that comes into contact with the cover member.

Furthermore, the IC socket of the present invention is characterized in that the contact is opened by the contact opening / closing member when the cover member is lowered by pressing the operation lever.

In the IC socket of the present invention, the contact includes a base portion fixed to the socket body, and an elastically deformable curved portion extending from the base portion in a substantially circular shape.
An actuating protrusion extending linearly obliquely upward from the curved portion and having a tip end locked to the contact opening / closing actuating member, and a movable contact portion facing the actuating protrusion and extending obliquely downward from the curved portion. And a terminal pin that extends downward from the base portion and is fixed and protruded by the substrate portion, and the contact protrusion opening / closing member opens / closes the operating protrusion.

Other objects, features and advantages of the present invention will be apparent from the following detailed description of the embodiments of the present invention shown in the accompanying drawings.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment) FIGS. 1 to 4 are schematic views for illustrating and explaining an embodiment of an IC socket according to the present invention. FIG. 2 is a side view when the cover member is pressed by a lever, FIG. 2 is a plan view of the IC socket of the present invention of FIG. 1, and FIG.
FIG. 4 is a side sectional view of the IC socket of the present invention shown in FIG. 1 when the operation lever is opened and the contact is in a free state.
FIG. 4 is a sectional view taken along line IV-IV in FIG. 2.

The IC package used as an example in the present invention has a plurality of external terminals I around it.
Although it is an IC component such as a quat flat lead type IC package having a C lead, other I
Of course, the C package can be applied.

As shown in FIGS. 1 and 2, an IC socket 1 to which the present invention is applied has a socket body 2 having a base plate portion 12 and a plurality of spring members (not shown) so that the IC socket 1 can be moved vertically. The supported cover member 3, a socket opening mechanism 4 for pressing the cover member 3 evenly, and a plurality of contacts 5 arranged in parallel with the socket body 2.
And a plurality of contact opening / closing operation members 6 rotatably provided in the peripheral portion of the socket body 2 in the cover member 3 so as to open and close the contacts 5, and the central portion of the socket body 2 The IC package 10 can be mounted by mounting it on the IC package mounting portion 8, and the socket opening mechanism 4 has an operation lever 7 for uniformly pressing the cover member 3.

In the IC socket 1 of the present invention, the socket body 2 has a substrate portion 12 fixed to an inspection device, a test board, a printed circuit board or the like, and one side of the substrate portion 12 has a socket. A pair of support brackets 14 for pivotally supporting the operation lever 7 of the opening mechanism 4 are provided so as to stand upward, and a bearing portion formed so as to project downward on one side of the operation lever 7. The operation lever 7 is rotatably supported by a shaft 15 which is passed through 16 holes. Furthermore, in the center of the socket body 2,
The IC package mounting portion 8 on which the IC package 10 is mounted is formed, and the IC package 1 is provided around the IC package mounting portion 8.
A seating plane 8a on which the IC leads 11 of 0 and a dam portion 9 are provided.

An opening 17 for inserting the IC package 10 is provided at the center of the operating lever 7, and the lower surface of the peripheral portion of the operating lever 7 surrounding the opening 17 is projected downward. The pressurizing unit 18 is provided, and the operating unit 19 for operating the operating lever 7 to pivot is provided on the other side of the operating lever 7 as a shallow depression. The operating lever 7 can be operated by grasping or pressing.

The contact 5 is formed, for example, in a peculiar shape as shown in the figure, and the substrate portion 1 of the socket body 2 is formed.
2, a base portion 20 fixed to the base portion 20, an elastically deformable curved portion 21 extending from the base portion 20 in a substantially circular shape, and a distal end portion linearly extending obliquely upward from the curved portion 21 and a tip portion thereof being a contact opening / closing operation member 6 An operating portion 22 that is locked to
A movable contact portion 23 that faces the actuating portion 22 and extends obliquely downward from the curved portion 21, and a terminal pin that extends downward from the base portion 20 and is fixedly inserted into the socket body 2 at the substrate portion 12 and further protrudes downward. 24, and the terminal pins 24 are formed so as to form a required test circuit or the like by being inserted and connected to a connection terminal of an inspection device (not shown) or a hole for a terminal of a test board. Has been.

Therefore, such a contact 5 is moved by the contact opening / closing operation member 6 which is rotatably supported with respect to the socket body 2 by the pivots projecting laterally from both sides thereof. Can be brought into contact with and separated from the IC leads 11 of the IC package 10 arranged on the seating plane 8a of the substrate portion 12.

With the IC socket 1 to which the present invention configured as described above is applied, the inspection of the IC package is
This is done as follows.

First, the terminal pin 24 of the IC socket 1 of the present invention is inserted into a connection terminal of an inspection device (not shown), a terminal hole of a test board, or the like to be connected to form a necessary test circuit. The IC socket 1 is installed on an inspection device or a test board.

3 and 4 show the IC socket 1 of the present invention.
FIG. 6 is a diagram when the contact lever 5 of the socket opening mechanism 4 is opened and the contact 5 is in a free state.

When the contact 5 is in a free state and is closed, and the IC package 10 is not mounted yet, first, the operation lever 7 is rotated in the arrow direction to press the operation lever 7. When the cover member 3 is pressed downward by the portion 18, the contact opening / closing operation member 6 is rotated toward the outer side by the lowering of the cover member 3 to open the contact 5, and the movable contact portion 23 of the socket body 2 is moved. The operating lever 7 pushes the socket main body 2 and the cover member 3 away from the seating plane 8a to be in the state shown in FIG. In this state, since the contact 5 of the IC socket 1 is open, the IC package 10
Can be inserted from above and passed through the opening 17 of the operation lever 7 to be mounted on the IC package mounting portion 8 of the socket body 2, and the IC lead 11 and the seating plane 8a which is an IC lead mounting portion. It is arranged on the dam portion 9 and the IC package 10 is suitably mounted.

In this way, when the IC package 10 is mounted, the pressure applied by the operating lever 7 is stopped and the operating lever 7 is rotated upward, whereby the cover member 3
Since the pressure from above is released, it is pushed up by the built-in spring member and the contact opening / closing member 6 is opened.
Is rotated inward to close the contact 5. Therefore, in the contact 5, since the movable contact portion 23 is pressed onto the IC lead 11 of the IC package 10,
The IC package 10 can be suitably connected to an external circuit via the contact 5, and the required test and measurement can be performed.

When the necessary tests and measurements are completed in this way, the operating portion 1 of the operating lever 7 of the socket releasing mechanism 4 is completed.
If the user holds 9 and pushes it downward, the cover member 3 is pushed down by the pressurizing portion 18 of the operating lever 7,
As a result, the contact opening / closing member 6 is pivoted outward, and the contact 5 is pivoted outward to be opened, so that the movable contact portion 23 is separated from the IC lead 11 of the IC package 10. Therefore, the IC package 10 can be grasped and pulled out to the outside through the opening 17 of the operation lever 7 by a hand or a suction mechanism of an automatic machine.

The pressurizing portion 1 of the operation lever 7 as described above.
Since the pressing of the cover member 3 by 8 is evenly pressed through the pressing portion 18, it is possible to uniformly press the operation lever 7 with one hand and handle the IC package 10 with the other hand. Therefore, by this uniform pressure I
The C package 10 can be surely inserted, no trouble occurs, and the contact 5 can be suitably opened.
There is no possibility of damaging the lead 11.

[0028]

As described above, according to the first aspect of the present invention.
The described IC socket includes a socket main body having a substrate portion, a plurality of contacts mounted on the socket main body, an IC package mounted on the socket main body, a cover member movable up and down, and the contacts. In an IC socket having a plurality of contact opening / closing actuating members rotatably provided in a peripheral portion of the socket body in the cover member so as to open and close, a socket opening mechanism for uniformly pressing the cover member. So that
The cover member can be uniformly pressed by operating the socket opening mechanism with one hand, and the IC package can be handled with the other hand, so that the IC package can be reliably inserted by the uniform pressure. It is possible to prevent the occurrence of any problems, and it is possible to suitably open the contact, and
There is nothing to damage the C lead.

The IC socket according to claim 2 of the present invention is
Since the socket opening mechanism has the operation lever pivotally supported on one side of the socket body, the operation lever can be uniformly pressed by one hand, and the IC package can be surely inserted. And the IC leads are not damaged.

The IC socket according to claim 3 of the present invention is
Since the operation lever has the pressing portion that comes into contact with the cover member, the operation lever can be uniformly pressed by one hand, and the contact can be suitably opened.

The IC socket according to claim 4 of the present invention is
Since the contact is opened by the contact opening / closing member due to the lowering of the cover member by the pressing of the operation lever, uniform pressing by the operation lever is possible, and the IC package can be reliably inserted. it can.

The IC socket according to claim 5 of the present invention is
The contact has a base portion fixed to the socket body, an elastically deformable curved portion extending from the base portion in a substantially circular shape, and a linear portion extending obliquely upward from the curved portion so that the tip portion performs the opening / closing operation. An operating protrusion that is locked to the member, a movable contact portion that faces the operating protrusion and extends obliquely downward from the curved portion, and a movable contact portion that extends downward from the base portion and is fixed and protrudes at the substrate portion. Since the operating protrusion is opened and closed by the contact opening and closing member, the contact can be opened and closed favorably, and the contact can be easily and easily manufactured.

[Brief description of drawings]

FIG. 1 is a side view of an IC socket of the present invention when a cover member is pressed by an operating lever.

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

FIG. 3 is a side sectional view of the IC socket of the present invention in FIG. 1 when the operation lever is opened and the contact is in a free state.

4 is a cross-sectional view taken along line IV-IV of FIG.

FIG. 5 is a side view of a conventional IC socket.

FIG. 6 is a plan view of the conventional IC socket of FIG.

[Explanation of symbols]

1 IC socket 2 socket body 3 Cover member 4 socket opening mechanism 5 contacts 6 Contact opening actuating member 7 Control lever 8 IC package mounting part 9 dam section 10 IC package 11 IC lead 12 Board part 14 Support bracket 15 axes 16 Bearing 17 openings 18 Pressure unit 19 Operation part 20 Base 21 curved section 22 Working part 23 Moving contact 24 terminal pins

Claims (5)

[Claims] 1. A socket main body having a substrate portion, a plurality of contacts mounted on the socket main body, an IC package mounted on the socket main body, a vertically movable cover member, and the contacts. In an IC socket having a plurality of contact opening / closing actuating members rotatably provided in a peripheral portion of the socket body within the cover member so as to open and close, a socket opening mechanism for uniformly pressing the cover member is provided. An IC socket characterized by having. 2. The IC socket according to claim 1, wherein the socket opening mechanism has an operation lever pivotally supported on one side of the socket body. 3. The IC socket according to claim 2, wherein the operation lever has a pressing portion that comes into contact with the cover member. 4. The IC socket according to claim 1, wherein the contact is opened by the contact opening / closing member when the cover member is lowered by pressing the operation lever. 5. The contact has a base portion fixed to the socket body, an elastically deformable curved portion extending from the base portion in a substantially circular shape, and a tip extending linearly obliquely upward from the curved portion. An operating portion whose portion is locked to the opening / closing lever member, a movable contact portion that faces the operating portion and extends obliquely downward from the curved portion, and extends downward from the base portion and is fixed by a substrate. With a protruding terminal pin,
The IC socket according to claim 4, wherein the operating portion is opened and closed by the opening and closing operation member.