JP2000058198A - Socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a socket which has a simple structure, facilitates its assemblage in manufacturing, and enables easy removal of a small board. SOLUTION: Latches 510, 520 are extended in both sideward directions from fixing fittings 500 mounted to both sides of a housing 410, and the latches 510, 520 are formed into a curved arm-like shape expandable outward, so that lock parts 512, 522 for locking the surfaces of both side edges of a small board 200. The tips of the latches 510, 520 are bent and formed into fit-in parts 511, 521 for fitting in notches 211 of the small board 200. When the small board 200 is inserted into a slot 420 of the housing 410 from a diagonal direction and tilted to a horizontal final fitting position, both the side edges of the small board 200 move expanding the latches 510, 520, the fit-in parts 511, 521 fit in the notches 211 of the small board 200 and when the small board 200 reaches a horizontal state, the lock parts 512, 522 are faced to the surfaces of both the side edges of the small board 200 and lock the surfaces, so that the horizontal state of the small board 200 is retained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a socket for mounting a small board on which a memory module or the like is mounted.

[0002]

2. Description of the Related Art Conventionally, in the field of personal computers and the like, when a small board on which a memory module is mounted is connected to a parent board, it is often connected via a socket fixed to the parent board by soldering or the like. . This type of socket has a zero insertion force (ZI
F) type sockets are often used.

In a ZIF socket, a small board is inserted from a direction inclined with respect to the socket, and after insertion, the small board is made parallel to the socket so that both ends of the small board are provided on both sides of the socket. The position is fixed by engaging with the latch.

FIGS. 5 and 6 show an example of a conventional socket. The socket 1 has substantially the same structure as that disclosed in, for example, JP-A-8-55651, and has a contact 2a exposed from the housing 2 on the lower surface.
Are soldered to a parent substrate (not shown). Arms 3 are provided on both sides of the housing 2 so as to face each other, and latches 4 are fixedly mounted on the facing surfaces of the arms 3.

When the terminal 5a formed at the lower end of the small board 5 is inserted obliquely into the housing 2, the notches 5a formed at both ends of the small board 5 are engaged with the latches formed on the latch 4. The position is aligned with the claw 4a.

When the small substrate 5 is pressed downward in the figure around the terminal portion 5a, the hooking claws 4a come into contact with the notches 5a and are spread outward, so that the small substrate 5 is moved to the hooking claws 4a. 7, the upper and lower sides of the small substrate 5 are sandwiched between the hooking claws 4 a and the tongue pieces 3 a formed by bending the arms 3, as shown in FIG. The lower surface of the latching pawl 4a of the latch 4 engages with the edge, and is positioned and fixed.

[0007]

However, the conventional socket 1 has a double structure in which the arm 3 and the latch 4 are disposed on both sides of the housing 2 in order to position and fix the small board 5. Is complicated.

Further, since the hook 4a is engaged with the upper side of the small board 5, it is difficult to remove the hook 4a when removing the small board 5, which is inconvenient.

Further, the structure for bending and forming the latching claws 4a and the like in the middle of the latch 4 is complicated, which increases the number of manufacturing steps and increases the cost of parts.

In view of the above circumstances, it is an object of the present invention to provide a socket which has a simple structure, is easy to assemble and assemble, can reduce parts costs, and can easily remove a small board.

[0011]

In order to achieve the above object, a socket according to the present invention comprises a housing for inserting and removing a small board from an inclined direction and holding the small board at a final fitting position, and both sides of the housing. And a latch that is disposed opposite to and latches on both sides of the small board, wherein both latches are formed in a curved arm shape that can be opened outward, and the latch is provided on both sides of the small board. And a hook portion for hooking the surface of the head.

In a preferred aspect of the present invention, the tip of the latch is bent to form a fitting portion into a notch provided on both sides of the small board.

In using the socket of the present invention, the small board is inserted into the housing from an inclined direction, and then the small board is turned down so as to be parallel to the socket, and is held at the final fitting position. At this time, the curved arm-shaped latches provided on both sides of the housing are pressed against both sides of the small board and expanded outward, and when the small board is further tilted, the latching portions of the latches are located on both sides of the small board. The small substrate is held by hanging the surface.

In a preferred aspect of the present invention, when the small board is tilted so as to be parallel to the socket, the fitting portions at the latch tips are fitted into the notches on both sides of the small board, so that the small board is positioned. This makes it possible to confirm that the insertion has been completely performed, and to provide a locking force against pulling out the small board.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG.
The socket 400 includes a substantially quadrangular prism-shaped housing 410 formed of an insulating material such as a synthetic resin, and fixing brackets 500 attached to both ends of the housing 410.

On the front and rear surfaces of the housing 410, slots 420 and 430 into which the terminal portions 210 of the pair of small substrates 200 are respectively inserted are formed.

Further, from both sides of each of the fixing brackets 500,
A pair of opposed latches 510 and 520 extend so as to sandwich the slots 420 and 430, respectively. Each of the latches 510 and 520 is formed by bending a metal flat plate into a curved arm shape.
The tips of the 0,520 are curved in a bow shape in a direction approaching each other.

At the portion slightly before the tip of each of the latches 510 and 520, there are hooks 512, which engage with the surfaces of both sides of the small board 200 when the small board 200 is placed at the final fitting position. 522 are formed. Hanging part 512,
522 has a shape that bulges outward, and the lower surface thereof is engaged with the surface of the small substrate 200 to hold the small substrate 200 horizontally.

At the tip of each of the latches 510 and 520, fitting portions 511 and 521 formed by bending in a loop shape are provided.
Are formed. These fitting portions 511, 512
As shown in FIG. 4, the small substrate 200 is fitted into notches 211 provided on both sides of the small substrate 200, and the small substrate 200 is positioned.
It is provided so that it can be confirmed whether the insertion has been completed or not, and that a locking force is applied to a force for pulling out the small substrate 200.

Note that the fitting portions 511 and 521 project below the hook portions 512 and 522, respectively.
11 and 512 are fitted in the notch 211, and the latches 512 and 522 of the latches 510 and 520 are
Can be hooked on the surface of both sides of the.

Further, the contact portions 441 of the contacts 440 are vertically arranged in two rows in the slots 420 and 430, and each of the contact portions 441 contacts the terminal portion 210 of the small board 200. Further, the connection portion 442 of the contact 440 is exposed at the bottom of the housing 410,
This connection portion 442 is soldered to parent board 300.

The socket 400 employed in the present embodiment
Is a so-called ZIF type socket, and the slot 4
Contact portion 44 of contact 440 exposed to 20, 430
1 sandwiches the terminal portion 210 of the small substrate 200 and urges the small substrate 200 to rotate away from the parent substrate 300 (upward in FIG. 2) via the terminal portion 210.

Next, the operation of the present embodiment will be described. As shown in FIG. 3, first, when the terminal section 210 of the small board 200 is obliquely inserted into the slots 420 and 430 formed in the housing 410 of the socket 400 soldered to the mother board 300, This terminal 21
Contact portions 4 of the contacts 440 in which 0 is arranged vertically
41.

Next, the small substrate 200 is
Is rotated in a direction parallel to the direction opposite to the holding force of the contact portion 441. Then, the latches 510 and 520 extending from both sides of the fixing bracket 500 fixed to both sides of the housing 410 are pressed by both sides of the small board 200 and are spread outward.

Then, as shown in FIG.
Fitting portions 511, 521 formed at the tip of 0,520
Are fitted into notches 211 formed on both sides of the small substrate 200, and the small substrate 200 is further inclined in the horizontal direction.

In this case, the notch 211 of the small substrate 200
The fitting portions 511, 52 at the tips of the latches 510, 520
1 fits into the terminal portion 210 of the small board 200.
Can be confirmed to be inserted correctly into the slots 420 and 430, and the small board 2
A locking force can be applied to the force that tries to pull out 00.

When the small substrate 200 is substantially horizontal, the latches 512 and 52 of the latches 510 and 520 are provided.
2 moves over both sides of the small substrate 200 and
It is engaged with the surface (upper surface) on both sides by the restoring force of 0,520.

The contact 4 for holding the terminal portion 210
The contact portion 441 of the small substrate 2
00 is urged to rotate in a direction away from the motherboard 300, so that the latches 512, 52 of the latches 510, 520 are engaged.
2 can hold the small substrate 200 in a horizontal state only by hooking the surface of the small substrate 200.

When removing the small board 200 from the socket 400, the latches 510 and 520 are pushed outward. Then, the rotation urging force of the contact portion 441 of the contact 440 sandwiching the terminal portion 210 of the small substrate 200 causes
The small substrate 200 is inclined in a direction away from the parent substrate 300, and can be easily removed.

The present invention is not limited to the above embodiment. For example, the housing 410 of the socket 1 may be provided with a slot 420 on only one side. In this case, the housing 410 is provided upright on the mother board 300. It may be. Further, the fitting portions 511 and 521 do not need to be formed in a loop shape.
It may be merely bent and formed in an arc shape inside 0.

[0031]

As described above, according to the present invention, the latches provided on both sides of the housing are formed in the shape of a curved arm which can be opened outward, and the latches are provided on both sides of the small substrate. Is formed, the structure for fixing the small substrate is simplified, manufacturing and assembling become easy, and the cost of parts can be reduced. Also, the workability is good because the small board can be easily removed simply by pushing and spreading the latch.

In the case where the tip of the latch is bent and formed into a notch provided on both sides of the small board, it is determined that the small board is positioned and inserted completely. In addition to being able to confirm, it is possible to provide a locking force for pulling out the small substrate.

[Brief description of the drawings]

FIG. 1 is a plan view of a socket.

FIG. 2 is a view taken in the direction of arrow II in FIG.

FIG. 3 is a perspective view showing a state where a small board is inserted into a socket.

FIG. 4 is a perspective view showing a state where a small board is inserted into a socket.

FIG. 5 is a perspective view showing a state where a small board is inserted into a conventional socket.

FIG. 6 is a perspective view showing a state where a small board is inserted into a conventional socket.

[Explanation of symbols]

 200: small board 400: socket 410: housing 510, 520: latch 511, 521: fitting portion 512, 522: hooking portion

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 5E021 FA05 FA07 FB05 FB18 FC31 FC36 FC38 FC40 HA10 HB11 HB17 HC12 JA05 KA02 5E023 AA04 AA16 AA21 AA26 BB01 BB19 BB22 BB25 BB29 CC02 CC04 CC23 CC26 CC27 DD18 DD19 DD17 DD18 GG09 GG15 HH01 HH17 HH19 HH30

Claims (2)

[Claims] 1. A small board is inserted and removed from an inclined direction,
In a socket comprising a housing for holding the small board at the final fitting position and latches disposed opposite to the both sides of the housing and hooking on both sides of the small board, the both latches are expanded outward. A socket formed in a freely curved arm shape, wherein the latch is formed with a latch portion for latching the surface of both sides of the small board. 2. The socket according to claim 1, wherein a tip of the latch is bent to form a fitting portion into a notch provided on both sides of the small board.