JP2003243092A - Socket for memory card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a socket for a memory card for inserting the memory card smoothly by preventing the memory card from being inserted in a wrong direction. <P>SOLUTION: This socket 1 for a memory card includes a housing 3 into/from which the memory card 2 slides to be inserted/drawn and a slider 5 wherein a locked recessed part is provided in place inside the housing 3, and the slider 5 has an elastically deformable part 53 and has an inclined plane 53b on part of its front end, and a locking protrusion part 53c on the opposite side of the inclined plane in the drawing direction so that the elastically deformable part 53 is elastically deformed by receiving pressure force in which a corner 22 of the memory card 2 is inserted from a direction coming into contact with the slider 5 to come into contact with and run on the inclined plane 53b, thus the locking protrusion part 53c is locked in the locked recessed part. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a memory card socket for connecting a memory card and a circuit board.

[0002]

2. Description of the Related Art As a memory card socket of this type, there is one that is mounted in a small electronic device such as a mobile phone as shown in FIGS. 4 is a perspective view showing the relationship between the memory card and the memory card socket, FIG. 5 is a plan view showing a state in which the shell is removed, and FIG. 6 is an exploded perspective view showing the memory card socket.

This memory card socket 1 is used for a memory card 2 which is, for example, an SD (Secure Digital) memory. The memory card 2 is slidably inserted into and removed from the memory card 2 and contacts a connection terminal provided on the memory card 2. Housing 3 holding a plurality of contacts 4 and the housing 3 as the memory card 2 is inserted and removed.
The housing 3 comprises a body 6 and a shell 7, and the memory card 2 is inserted between the body 6 and the shell 7.

The memory card 2 has a rectangular outer peripheral shape as shown in FIG. 4, and has an inclined surface portion 21 formed by cutting out the upper right corner in FIG. Further, the memory card 2 is provided with a plurality of connection terminals on the back surface for connecting to the plurality of contacts 4.

The body 6 is made of a synthetic resin molded product and has a rectangular flat plate-like base plate 62 facing a part of the back surface of the memory card 2. A pair of arms 61a, 61b extending in one direction along both side edges of the base plate 62 in the longitudinal direction are integrally provided with the base plate 62, and the base plate 62 and the arms 61a, 61b are formed in a U shape as a whole. Has been formed. The arms 61a and 61b and the base plate 62 share one side edge, and a rear surface plate 63 is provided upright on the front side of the base plate in FIG. A side plate 64a is erected on the right side edge of the right arm 61a in FIG. 5, and a side plate 64b is erected on the left side edge of the left arm 61b in FIG.

The shell 7 has a U-shaped cross section and is joined to the body 6 so as to overlap the side plates 64a and 64b from the outside. The left side edge of the arm 61a and the arm 61b
At the side edge on the right side of the card guides 65a and 65b for restricting the movement of the memory card 2 in the left-right direction in FIG.
The memory card 2 is provided with a card guide 65.
Slide along a and 65b. Each card guide 65
At the front end portions of a and 65b (the downward direction in FIG. 5 is the front direction), a card introduction portion that is inclined so as to widen both the lateral width between both card guides 65a and 65b and the distance to the shell 7 toward the front surface. 66a and 66b are provided. When inserting the memory card 2 between the body 6 and the shell 7, the memory card 2 is guided by the card introducing portions 66a and 66b, so that the inserting operation of the memory card 2 becomes easy.

The base plate 62 has a plurality of (9) contacting a plurality of connection terminals provided on the memory card 2.
Contact 4 is held. One end of each contact 4 has an arm 61 up to a position where it does not overlap with the base plate 62.
It is extended along a and 61b.

The slider 5 is placed on the arm 61a, and the slider 5 is movable in the front-rear direction between the card guide 65a and the side surface plate 64a. And a contact portion 52 that contacts the front surface of the card 2. The movement direction of the slider 5 is restricted by the card guide 65a, the side plate 64a, the shell 7, and the arm 61a, and the memory card 2 is inserted into the housing so that the connection terminal of the memory card 2 contacts the contact 4 and the memory card. 2 is housing 3
The slider 5 slides between itself and the position where it can be removed. A coil spring 8 for biasing the slider 5 in the forward direction is mounted on the front surface side of the end portion of the rear plate 63 on the arm 61a side.

The memory card 2 is mounted in the memory card socket 1 as follows. Memory card 2
In FIG. 4, the inclined surface portion 21 of the memory card 2 is gradually inserted into the housing 3 from the lower left side of the housing 3 with the inclined surface portion 21 on the upper right. Then, as shown in FIG. 7A, when the inclined surface portion 21 contacts the contact portion 52, the contact portion 52 is pushed by the inclined surface portion 21 and the slider 5 slides with respect to the housing 3. Then, when the memory card 2 reaches the mounting position, the connection terminals are connected to the plurality of contacts 4. Thus, the information of the memory card 2 is relayed from the connection terminal to the memory card socket 1 and sent to the electronic device.

[0010]

The above-mentioned memory card socket 1 has the inclined surface portion 2 as shown in FIG. 7 (a).
The slider 5 slides when the contact portion 1 is pressed against the contact portion 52, and the memory card 2 is mounted.

However, when the mounting direction of the memory card 2 is wrong and the memory card 2 is inserted upside down, as shown in FIG. 6B, if the corner portion 22 of the memory card 2 contacts the contact portion 52. Since the contact portion 52 is pushed by the corner portion 22 and the slider 5 slides with respect to the housing 3, the mounting direction is likely to be incorrect. As a result, it has been feared that the memory card 2 cannot be mounted smoothly.

The present invention has been made in view of the above circumstances, and an object of the present invention is to make the mounting direction of the memory card 2 erroneous so that the memory card 2 can be mounted smoothly. To provide a card socket.

[0013]

According to another aspect of the present invention, there is provided a memory card socket in which a memory card having a substantially flat plate shape and having an inclined surface portion formed by cutting out a corner of one end edge is slid. A housing that holds a plurality of contacts that are inserted / removed and that contacts the connection terminals provided on the memory card, and a contact portion that contacts the inclined surface portion of the memory card. In a memory card socket having a slider to slide, a locking recess is provided at a predetermined position inside the housing, and the slider is elastically deformed integrally with the slider body and has a predetermined length. Equipped with a possible elastic deformation portion, the connection portion is provided on the proximal end side of the elastic deformation portion,
The part where the connecting part does not exist has a predetermined space, and at the end of the elastically deforming part, a locking projection is provided on the opposite side of the inclined surface and the inclined surface in the extending direction. It is characterized in that the elastically deformable portion is elastically deformed by receiving a pressing force which is inserted from a direction in which it abuts against the slider and abuts against the inclined surface and rides on the inclined surface, and the engaging projection engages with the engaging recess.

According to a second aspect of the present invention, in the memory card socket according to the first aspect, the elastically deformable portion is separate from the slider, and is fixed to the slider body portion at the connecting portion.

According to a third aspect of the present invention, in the memory card socket of the first or second aspect, the elastically deformable portion is made of metal.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. Since the basic configuration of the present embodiment is the same as that described in the related art, parts having substantially the same basic function are designated by the same reference numerals, and common parts will be described in detail. Description is omitted.

The memory card socket 1 of the present invention has a substantially flat plate shape, and a memory card 2 having an inclined surface portion 21 formed by cutting out a corner portion 22 at one edge is slidably inserted and removed. A housing 3 that holds a plurality of contacts 4 that come into contact with the connection terminals provided in 2;
The slider 5 has an abutting portion that abuts the inclined surface portion of the memory card 2 and slides with respect to the housing 3 when the memory card 2 abuts.

FIG. 1 is a perspective view of a main part of a slider 5, which is a characteristic part of the memory card socket 1 according to the present invention. The slider 5 has an abutting portion 52 that abuts the inclined surface portion 21 of the memory card 2, and slides with respect to the housing 3 when the memory card 2 abuts. The elastically deformable portion 53 is provided continuously and has a predetermined length and is elastically deformable.

The elastically deforming portion 53 does not abut on an inclined surface 53b, which will be described later, when the inclined surface portion 21 abuts on the abutting portion 52, but when the corner portion 22 is inserted from the direction in which it abuts on the slider 5, the inclined portion 53b is inclined. The length is such that it abuts the surface 53b. Then, when the corner portion 22 is inserted from the direction in which the slider 22 abuts on the slider 5, the slider 5 is
In order to prevent the corner portion 22 from coming into contact with the abutting portion 52, the abutting portion 52 is provided with a surface 55 that is cut out so as to be substantially orthogonal to the extending direction of the elastically deforming portion 53. Further, the elastically deforming portion 53 is provided with a connecting portion 53a on the base end side thereof, and is connected to the slider body 51 at this portion. Then, the elastic deformation portion 5 is provided in a portion where the connecting portion 53a does not exist.
A predetermined space 54a formed substantially parallel to the stretching direction of 3;
54b are provided on both sides of the elastically deforming portion 53. Furthermore, the inclined surface 53 is provided on a part of the elastically deforming portion 53 on the tip side.
A locking protrusion 53c is provided on the opposite side of the inclined surface 53b in the direction of b and the extending direction.

Next, the operation of the slider 5 when mounting the memory card 2 will be described with reference to FIG. 2 (a) and 2 (b) are a top view and a schematic cross-sectional view of an essential part showing a state immediately before the corner 22 abuts the elastically deforming part 53, and FIGS. 2 (c) and (d) are FIG. 5 is a top view and a schematic cross-sectional view of an essential part showing a state after the corner part 22 is in contact with the elastically deformable part 53.

As shown in FIG. 2, when the memory card 2 is inserted upside down by mistake in the mounting direction, the corner portion 22 abuts the inclined surface 53b. When the memory card 2 is further inserted, the corner portion 22 gradually rides on the inclined surface 53b, so that the elastic deformation portion 53 is elastically deformed by the pressing force and is bent downward in FIG. Then, the locking projection 53c locks in the locking recess 61 provided at a predetermined position inside the body 6 to prevent the slider from sliding, so that the memory card 2 cannot be inserted any further.

On the other hand, as shown in FIG. 3, the memory card 2
When the mounting direction is correct, the inclined surface portion 21 contacts the contact portion 52 and does not contact the elastic deformation portion 53. Then, since the locking projection 53c does not lock in the locking recess 61,
The slider 5 slides, and the memory card 2 is mounted in the memory card socket 1 without any delay.

According to the above construction, when the mounting direction of the memory card 2 is incorrect, the memory card 2 is prevented from sliding even if it comes into contact with the slider, so that the mounting direction of the memory card 2 is unlikely to be incorrect. Become. As a result, the memory card 2 can be smoothly mounted.
Further, since the elastically deforming portion 53 is integrally formed with the slider 5 by a synthetic resin molded product, the number of parts does not increase.

In the above-described embodiment, the locking recess for locking the locking projection 53c is provided at a predetermined position inside the body 6 so that the elastically deforming portion 53 moves downward in FIG. 2 (d). Although it is bent to be locked in the locking recess 61,
The locking recess may be provided at a predetermined position inside the shell 7 so that the elastically deformable portion 53 bends downward in FIG. 2D and locks. In this case, the inclined surface 53b may be provided on the lower side in FIG. 1, and the locking projection 53c may be provided on the upper side in the figure.

Further, in the above-described embodiment, the elastically deforming portion 53 is formed integrally with the slider 5, but it is separate from the slider 5 and is press-fitted into the slider body 51 at the connecting portion 53a. You may fix it. In this case, since the elastically deformable portion 53 can be manufactured separately from the slider 5, it can be easily processed into a predetermined shape.

The elastically deforming portion 53 may be made of metal integrally formed with the slider 5, or may be made of metal separately from the slider 5. This way
Even if the memory card 2 is repeatedly inserted and removed, the elastic deformation portion 53 is less likely to wear.

[0027]

In the memory card socket according to the first aspect of the present invention, the slider is provided with the elastically deforming portion, and the inclined surface and the locking projection are provided on the tip side of the elastically deforming portion so that the memory card can be mounted in the mounting direction. When the erroneous insertion is made, the corner portion abuts the inclined surface and rides up, and the elastic deformation portion elastically deforms and bends due to the pressing force, and the locking projection is provided at a predetermined position inside the housing. The memory card cannot be inserted any further because it is locked in the stop recess so that the slider does not slide, so it is difficult to insert the memory card in the wrong direction. Becomes .

According to a second aspect of the present invention, in the memory card socket of the first aspect, the elastically deformable portion is separate from the slider, and is fixed to the slider body portion at the connecting portion. The deformable portion can be manufactured separately from the slider, and can be easily processed into a predetermined shape.

In the memory card socket according to the third aspect of the present invention, since the elastically deforming portion is made of metal in the structure of the first or second aspect, even if the memory card 2 is repeatedly inserted and removed, the elastic The deformed part is less likely to wear.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a slider which is a characteristic part of a memory card socket according to the present invention.

2A and 2B are a top view and a schematic cross-sectional view of an essential part showing a state where a corner of a memory card comes into contact with the slider of the same.

FIG. 3 is a main part top view showing a state in which the inclined surface portion of the memory card comes into contact with the slider of the above.

FIG. 4 is a perspective view showing a relationship between a memory card and a memory card socket.

FIG. 5 is a plan view showing a state in which a shell of the memory card socket is removed.

FIG. 6 is an exploded perspective view showing a memory card socket.

FIG. 7 is a top view of relevant parts showing a state where a memory card contacts a conventional slider.

[Explanation of symbols]

1 Memory Card Socket 2 Memory Card 21 Memory Card Inclined Surface 22 Memory Card Corner 3 Housing 4 Contact 5 Slider 51 Slider Body 52 Slider Abutment 53 Elastic Deformation 53a Coupling 53b Inclined 53c Locking Protrusion Portions 54a, 54b Predetermined space 61 provided in a portion where the connecting portion does not exist Locking recess

Continued front page    F term (reference) 5B058 CA03 CA13 KA12 KA24                 5E021 FB05 FB18 FC09 FC30 FC31                       FC36 FC38 HC09 HC36 HC37                       KA05                 5E023 AA21 BB19 DD19 GG07 GG09                       HH19 HH24

Claims (3)

[Claims] 1. A plurality of memory cards, each of which has a substantially flat plate shape and has an inclined surface portion formed by cutting out a corner portion of one end edge, is slidably inserted and removed and contacts a connection terminal provided on the memory card. A housing holding the contacts,
A memory card socket, comprising: a slider that has an abutting portion that abuts an inclined surface portion of the memory card and that slides with respect to the housing when the memory card abuts, and is locked at a predetermined position inside the housing. A recess is provided, and the slider is provided with an elastically deformable portion that is integrally connected from the slider body and has a predetermined length and that is elastically deformable. A connecting portion is provided at the proximal end side of the elastically deforming portion. The non-existing part has a certain space, and a locking projection is provided on a part of the tip side of the elastically deformable part and on the opposite side of the inclined surface in the extending direction, and the corner of the memory card contacts the slider. A memory car characterized in that an elastically deformable portion is elastically deformed by receiving a pressing force which is inserted from a contacting direction and abuts on the inclined surface and rides on the inclined surface, and the locking projection is locked in the locking recess. Socket for power supply. 2. The memory card socket according to claim 1, wherein the elastically deformable portion is separate from the slider, and is fixed to the slider body portion at the connecting portion. 3. The memory card socket according to claim 1, wherein the elastically deformable portion is made of metal.