JP2576593Y2 - SIMM board socket - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a SIMM (Single In Line Memory Module) board used for OA equipment and the like, which is for mounting a SIMM board on a mother board in a detachable manner.

[0002]

2. Description of the Related Art FIG. 3 is a perspective view showing an example of a SIMM substrate. Wiring (not shown) is formed in a predetermined pattern on the printed circuit board 11, and terminals 12 are arranged at a predetermined pitch at an end. Further, a plurality of memory ICs 13 are mounted on the substrate 11, and these memory ICs 13 are electrically connected to the terminals 12 via the wiring. The SIMM substrate 11 has substantially semicircular cutouts 14 at both ends in the width direction.

FIG. 4 is a perspective view showing an example of a conventional SIMM board socket used for connecting the above-mentioned SIMM board. The SIMM board socket includes a housing section 20 for accommodating a plurality of contacts (contacts: not shown) for obtaining electrical connection by contacting terminals of the SIMM board.
A board supporting portion 21 for supporting a widthwise edge on the back side of the SIMM substrate, and a thin plate-shaped board locking portion provided with a locking projection 22a for locking the widthwise edge on the front side of the SIMM substrate. 2
2 and a frame portion 23 disposed outside the board locking portion 22.
It is composed of Since the substrate locking portion 22 is formed in a thin plate shape, it is elastically curved when a stress is applied.
Further, the substrate supporting portion 21 is provided with a projection 21a corresponding to the cutout portion of the SIMM substrate. The housing section 20, the board supporting section 21, the board locking section 22, and the frame section 23 are integrally formed by resin molding.

In the thus configured SIMM board socket, the terminal side of the SIMM board is inserted obliquely with respect to the socket, and the terminals of the SIMM board are brought into contact with the contacts of the socket. Support part 2
Press towards 1. As a result, the edge of the SIMM substrate presses the protrusion 22a of the substrate locking portion 22, and the substrate locking portion 2
2 is curved toward the frame 23 side. Then, when the SIMM substrate is further pressed toward the substrate supporting portion 21, the notch portion
1a, the back side edge of the substrate contacts the substrate support 21. On the other hand, the protrusion 22a of the
It comes off the edge of the M substrate and returns to its original position by elastic force.
The protrusion 22a locks the front edge of the SIMM substrate. Thus, the SIMM substrate can be fixed between the substrate support 21 and the protrusion 22a.

FIG. 5 is a perspective view showing an end of another conventional socket for a SIMM substrate, and FIG. 6 is a view showing a cross-sectional shape taken along line AA of FIG. In this socket, the board engaging portion 25 is formed of a U-shaped metal plate, and the board engaging portion 25 is arranged by fitting into a concave portion 29 a provided in the frame portion 29. . In addition, the board locking portion 25 has a protrusion 27 that fits into the cutout portion of the SIMM board 11, a protrusion 26 for locking the SIMM board 11, and a tip side of the protrusions 26 and 27. And a claw portion 28 provided.

In this socket, as in the socket shown in FIG. 4, first, the SIMM substrate 11 is inserted obliquely with respect to the socket, and the terminals of the SIMM substrate 11 are brought into contact with the contacts of the socket. Then, the claws 28 with fingers or the like are used.
To retract the projections 26 and 27 to the side,
The back side edge of the substrate 11 is brought into contact with the substrate support 21.
Thereafter, the finger is released from the claw portion 28, and the projections 26 and 27 are returned to the original positions. As a result, the protrusion 27 is
Of the SIMM substrate 11, the protrusion 26 locks the front side edge of the SIMM substrate 11, and the substrate support 21 and the protrusion 2
6, the SIMM substrate 11 can be fixed.

[0007]

However, in the conventional SIMM board socket shown in FIG.
Since the end of the board slides on the projection 22a (resin) when the M board is inserted and removed, the insertion and removal of the board is repeated.
Is worn out, and the substrate cannot be sufficiently locked. In an extreme case, the board locking portion 22 may be broken at the time of inserting and removing the board.
On the other hand, the conventional SIMM board socket shown in FIG. 5 has a problem that the holding force on the board is not sufficient. That is, the SIMM substrate 1 is moved in the direction indicated by the arrow B in FIG.
When the puller 1 is strongly pulled, the projection 27 is pressed by the substrate 11, and the substrate locking portion 25 moves in the direction indicated by the arrow C in the figure, and the projection 26 comes off the substrate 11.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a SIMM board socket that can more reliably hold a SIMM board.

[0009]

SUMMARY OF THE INVENTION A SIMM board socket according to the present invention is mounted on a mother board and removably supports the SIMM board to electrically connect the SIMM board to the mother board. A housing portion for accommodating a contact for obtaining electrical connection by contacting a terminal of the SIMM substrate, a substrate supporting portion for supporting an edge in a width direction of a first surface of the SIMM substrate, A board locking portion capable of locking an edge portion in the width direction of the second surface of the SIMM substrate, and a fitting portion that fits into a cutout portion of the SIMM substrate are provided, and are directly fixed to the mother substrate. And a joining member.

[0010]

According to the present invention, the fitting member is directly fixed to the mother board with solder or the like, and the cutout portion of the SIMM board is fitted to the fitting portion provided on the fitting member. Further, the edge of the first surface (for example, the back surface) of the SIMM substrate is supported by the substrate support portion, and the edge of the second surface (for example, the front surface) of the SIMM substrate is locked by the substrate locking portion. The SIMM board is held by these fitting parts, board supporting parts and board locking parts. In this case, in the present invention, since the fitting member having the fitting portion to be fitted to the SIMM board is directly fixed to the mother board and formed separately from the board locking section, the SIMM board However, even if a stress is applied in the pulling-out direction, the fitting portion does not move. Therefore, the SIMM substrate can be securely held.

By providing the board supporting portion locking portion for locking the board supporting portion on the fitting member, the fitting member functions as a so-called solder tab, and the bonding strength of the socket to the mother board is remarkably improved. I do. Thus, it is possible to prevent the socket from being damaged or dropped due to the application of an external force.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a SIM according to an embodiment of the present invention.
It is a perspective view which shows the end part of the socket for M boards. The SIMM board socket according to the present embodiment is different from the conventional one in that a metal fitting member to be soldered to the mother board is provided at a position corresponding to the notch of the SIMM board. The other configuration is basically the same as the conventional one.

That is, in the SIMM board socket according to the present embodiment, the board support section 1 and the frame section 3 are formed integrally with the housing section (not shown). Also, in the frame part 3 ,
A board engaging portion 5 made of a metal plate bent into a U-shape is provided. The board locking portion 5 has a SIM
A protrusion 6 for locking a surface side edge of the M substrate;
M claw portion 8 of the order to move the projection 6 at the board insertion sampling of
Are provided.

A crank-shaped gap is provided between the substrate support 1 and the frame 3. As shown in FIG. 2, a metal fitting member 10 bent into a crank shape is inserted into the gap. The fitting member 10 includes a soldering portion 10a to be soldered to the mother board, a board supporting portion locking portion 10c for locking the board supporting portion 1, and a longitudinal direction of the substrate supporting portion 1 from the locking portion 10c. And a fitting portion 10b fitted into the cutout portion of the SIMM substrate.

In this embodiment, the fitting member 10 having the fitting portion 10b fitted into the notch of the SIMM board is soldered to the mother board. 5, the position of the fitting portion 10b is always constant. Further, even if a stress is applied to the SIMM board inserted into the socket according to the present embodiment in a direction in which the board is pulled out, the fitting portion 10b does not move.
Therefore, the SIMM board socket according to the present embodiment
The IMM substrate can be securely held. Further, in the present embodiment, since the board supporting portion 1 is locked by the fitting member 10, the fitting member 10 has a function as a so-called solder tab, and the bonding strength of the socket to the mother board is remarkable. Has improved. Therefore, there is an effect that the strength against the external force applied to the socket itself is high, and the socket can be prevented from being broken or dropped.

In the above-described embodiment, the case where the fitting member is provided with the board supporting portion locking portion is described. However, when the function as the solder tab is not required, the board supporting portion locking portion is provided. It is not necessary.

[0017]

[Effect of the Invention] As described above, the SIM according to the present invention is provided.
The socket for the M board has a fitting member directly joined to the mother board by soldering or the like, and the fitting portion of the fitting member fits into the notch of the SIMM board, so that the SIMM board can be securely held. The SIMM substrate can be held, and even if stress is applied to the SIMM substrate inserted into the socket in a direction in which the substrate is pulled out, the SIMM substrate can be prevented from falling off.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an end part of a socket for a SIMM board according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a fitting member.

FIG. 3 is a perspective view showing an example of a SIMM substrate.

FIG. 4 is a perspective view showing an example of a conventional SIMM board socket.

FIG. 5 is a perspective view showing a substrate fixing portion of another conventional SIMM substrate socket.

FIG. 6 is a view showing a cross-sectional shape taken along line AA of FIG. 5;

[Explanation of symbols]

 1, 21; board support parts 3, 23; frame parts 5, 22; board locking parts 6, 21a, 22a; projections 8, claw parts 10; Supporting portion locking portion 10d; lead-out portion 11; substrate 12; terminal 13; memory IC 14; cutout portion 20;

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 13/639 H01R 23/00-23/68

Claims (2)

(57) [Scope of request for utility model registration] 1. A SIMM board socket mounted on a mother board for detachably supporting the SIMM board and electrically connecting the SIMM board to the mother board. A housing for accommodating a contact for obtaining a positive connection, a substrate support for supporting an edge in the width direction of the first surface of the SIMM substrate, and an edge in the width direction of the second surface of the SIMM substrate. A socket for a SIMM substrate, comprising: a lockable substrate locking portion; and a fitting member provided with a fitting portion fitted into a notch portion of the SIMM substrate and fixed directly to the mother substrate. . 2. The SIMM board socket according to claim 1, wherein the fitting member is provided with a board supporting portion locking portion for locking the board supporting portion.