KR100799439B1 - Adapter for Memory Card - Google Patents

Abstract

The present invention provides an adapter for a memory card that allows a small memory card to be used as a card connector for a memory card larger than that, wherein the small memory card is integrally formed on a conductive (metallic) cover which is one of the components of the adapter main body. The problem is that the contact between the connection terminal and the ground contact is disconnected and the electrostatic breakdown prevention function of the adapter may be lost. As a solution, one of the components of the adapter main body 1 is provided. An elastically displaceable connection terminal 37 is integrally formed on the phosphor conductive (metal) cover 30, and the connection terminal 37 is brought into contact with a plurality of gland contacts 60d and 60i. The electrical contacts 60d and 60i, the ground contacts 60d and 60i, and the cover 30 are electrically connected to each other, thereby ensuring high contact reliability and reliably preventing an electrostatic breakdown function. .

Description

Adapter for memory card {MEMORY CARD ADAPTER}

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an external view of the memory card adapter of this embodiment as seen from the surface thereof;

2 is an external view of the same adapter as seen from the back side;

3 is an external view of the same adapter in a metal cover detached state viewed from the surface;

4 is a structural diagram of an exploded state of the same adapter;

Fig. 5 is an external view of (A) the base as seen from the front side, and (B) an external view of the base as seen from the back side;

Fig. 6 is an external view of the cover (A) seen from the front side, and (B) the external view of the cover seen from the rear side;

7 is an external view of (A) the contact set viewed from the surface side, (B) an external view of the contact set viewed from the rear side, and (C) an external view of the contact before insert molding viewed from the surface;

Fig. 8 is a sectional view of the same adapter showing an electrical connection structure between the ground contacts and the ground contacts and the cover;

9 is a front view of (A) the mini SD card, (B) the side view of the mini SD card, and (c) the back view of the mini SD card;

Fig. 10 is a front view of (A) micro SD card, (B) side view of micro SD card, and (C) rear view of micro SD card.

<Description of the symbols for the main parts of the drawings>

1: adapter body 10: base

30: cover 32: first speech section

33: second speech 36: folded portions

37: Connection terminal 60a ~ 60k: Contact

70: insulator 73: receiving hole

100: adapter for memory card

200: Mini SD card (large memory card)

300: micro SD card (small memory card)

The present invention relates to a memory card adapter which enables a small memory card to be used as a card connector for a larger memory card.

Conventionally, as a small-sized memory card of an SD card (24 x 32 x 2.1 mm: length x width x thickness), a mini SD card (20 x 21.5 x 1.4 as shown in Figs. 9A, 9B and 4C) is shown. Mm: length × width × thickness) 200 is provided.

In FIG. 9 (A), (B) and (C), 11 contacts 204a to 204k are placed on the back side of the front side (hereinafter referred to as "back") at the time of insertion in the normal insertion posture of the mini SD card 200. ) Is installed in the direction orthogonal to the front-back direction and the thickness direction (hereinafter referred to as "left-right direction"). In addition, the notch part 201 is formed in the back of the mini SD card 200 by removing one edge, and the surface side at the rear end of the mini SD card 200 narrowed by the notch part 201. The left and right edges of the upper stepped portion 202 is formed, and these notches 201 and the stepped portion 202 are inserted incorrectly other than the normal insertion tax of the mini SD card 200 to the card connector. (Insertion in the opposite and opposite positions inside and outside). In addition, lock notches 203 are formed on both left and right sides of the surface in the wider portion that is in front of the notch 202 of the mini SD card 200, and the mini SD card 200 is formed. When the lock member on the card connector side is locked to the lock notch 203 when the card connector is attached to the card connector, the mini SD card 200 is prevented from falling off. In addition, as for the 11 contacts 204a to 204k of the mini SD card 200, 1 to 11 contacts 204a to 204k are sequentially arranged from the left side to the right side, 1, 2, 10, 11 4 contacts 204a, 204b, 204j, 204k for data, 3 contacts 204c for command, 2 contacts 4, 9 for grand, 7 contacts for 7 204g) is for the power supply, and the eighth contact 204h is for the clock. The two contacts 204e and 204f of Nos. 5 and 6 are added in advance by the mini SD card 200, and the number of effective contacts is nine and corresponds to the number of contacts of the SD card.

By the way, in recent years, as a smaller-size memory card than the mini SD card 200, a micro SD card (11 x 15 x 1 mm: length × width × thickness) 300 is provided.

10 (A), (B) and (C), the notch part 301 is formed in the back of the micro SD card 300 so that one edge may be removed. In addition, a lock notch 302 is formed at one side portion of the notch portion 301 in a wider portion in front of the notch portion 301 of the micro SD card 300. In addition, eight contacts 303a to 303h are arranged in the left and right direction at the rear end side of the micro SD card 300. In the eight contacts 303a to 303h of the micro SD card 300, the contacts 303a to 303h are arranged one by one from the left to the right in order from the rear side, and 1, 2, 7, 8 are sequentially arranged. 4 contacts 303a, 303b, 303g, 303h for data, 3 contacts 303c for commands, 4 contacts 303d for power supplies, 5 contacts 303e for clocks, 6 contacts ( 303f) is for the grand. That is, the micro SD card 300 makes one grand contact, and the number of contacts is reduced to eight from nine of the SD card and the mini SD card 200 (however, the mini SD card 200 is the effective number of contacts). It is.

As described above, the micro SD card 300 has a smaller external dimension and a smaller number of contacts than the conventional mini SD card 200, so that the micro SD card 300 can be used as a card connector for a conventional mini SD card. You will need an adapter. And this kind of memory card adapter is disclosed by patent document 1, for example.

The adapter for the conventional memory card which allows a micro SD card to be used as a card connector for a mini SD card is formed with an external dimension corresponding to the mini SD card specification, and the adapter body of the mini SD card type which attaches a micro SD card to A fixed terminal for electrically connecting to eleven contacts of a card connector and eight movable terminals for electrically connecting to eight contacts of a micro SD card, separately inside the adapter main body, The eight movable terminals were electrically connected to the eight fixed terminals respectively corresponding to each other via a circuit board formed inside the adapter body, and the two gland movable terminals were electrically connected to each other.

In this way, the conventional memory card adapter includes two types of terminals, a terminal having a circuit board built therein and connected to a card connector for a large memory card, and a terminal connected to a small memory card. There is a problem that many, structurally complicated, manufacturing costs are also expensive. In addition, since a circuit board exists from the front end part to the rear end part of the inside of the adapter main body, there is a problem that it is not possible to use a metallic material for the component parts of the adapter main body, and to take measures to prevent electrostatic breakdown. .

In the memory card adapter, one component of the main body of the adapter is made of metal, and the metal part is electrically connected to a plurality of gland contacts which are built into the main body of the adapter to take an antistatic breakdown measure. The technique is disclosed by patent document 2, for example. By adopting this conventionally well-known technique, like the conventional memory card adapter, two types of terminals are built in a circuit board and connected to a card connector for a large memory card and a terminal for connecting to a small memory card. Since it is not necessary to form separately, the number of parts is small, structurally simple, and manufacturing cost can be made low.

[Patent Document 1]

Japanese Utility Model Registration No. 3110839

[Patent Document 2]

Japanese Patent Application Laid-Open No. 2004-272704

The problem to be solved by the present invention is that a conventional memory card adapter having an electrostatic breakdown prevention function includes an adapter body, a resin base, and a resin cover which is formed with an opening in a part thereof and is coated on the base. Since it is composed of a metal shell (metal part) fixed by being attached to the opening of the cover, the connecting terminal formed integrally with the metal shell in order to electrically connect the metal shell to the plurality of gland contacts, Contacting the ground contacts by protruding finely within the ground contact width and sandwiching between the ground contacts and the cover so as not to come into contact with the contacts other than the ground contacts along the inner surface. However, deformation due to external force or heat added to the adapter at the time of use, dimensional error of the component itself of the adapter and dimensional error of the assembly By this, when there are likely to be contact with the connecting terminal and grand contacts for disconnection, this prevention of the electrostatic discharge adapter function is the point at which loss.

In order to solve the above problems, the invention described in claim 1 is a memory card adapter that allows a small memory card to be used as a card connector for a larger memory card. A large memory card type adapter main body which is formed and mounts a small memory card having a plurality of contacts therein, and integrally elastically displaceable connection terminals are integrally formed on a conductive cover constituting the adapter main body with an insulating base. And the connection terminal is brought into contact with a plurality of gland contacts, and the gland contacts are electrically connected between the gland contacts and the cover.

Invention of Claim 2 adds to the invention of Claim 1 the integral part of the 1st speech part located in the outer side surface along the insertion direction of the adapter main body to the cover.

In the invention described in claim 3, in the invention according to claim 1 or 2, the cover is integrally formed with a second speech portion for addressing an end portion at a position opposite to a portion exposed from the adapter main body of the plurality of contacts, and the second speech. It is added that the folded piece is integrally formed at the end of the part, the connecting terminal is integrally formed at the end of the folded piece, and the connecting terminal is formed on the inner surface side of the second speaker.

The invention according to claim 4 adds a point in which the connecting terminal is formed in the parallel direction of a plurality of contacts from the end of the folded piece.

In the invention according to claim 5, in the invention according to claim 3 or 4, a non-conductor for maintaining a plurality of contacts in an insulated state is sandwiched between the second speaker and the base, and inside the receiving hole formed in the non-conductor. The addition of the folded part and the connection terminal is added.

<Embodiment of the Invention>

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the memory card adapter which concerns on this invention is described with reference to FIGS. The memory card adapter 100 of the present embodiment can be used as a card connector for a mini SD card 200, which is a card connector for a memory card that is larger than that by mounting a micro SD card 300 that is a small memory card. In order to meet the mini SD card specification, FIGS. 1 and 2 are formed with the same external dimensions (each dimension of vertical, horizontal and thickness) as the mini SD card 200 to mount the micro SD card 300. The adapter body 1 of the mini SD card type as shown in Fig. 3, the contact set 50 as shown in Figs. 3, 4 and 7 (A) (B) incorporated in the adapter body 1, It consists of the lock member 90 as shown to FIG. 3, FIG.

The adapter main body 1 shown in FIG.1, FIG.2 is the insulating base 10 which consists of synthetic resin materials as shown to FIG.3,4,5A (B), and FIG.4, FIG. It consists of two components of the electroconductive cover 30 which consists of a metal plate as shown to 6 (A) (B).

The base 10 shown to FIG. 3, FIG. 4, FIG. 5 (A) (B) has narrow width | variety by the bottom plate 11 of the substantially rectangular shape which removed one edge of the back side, and a square box. Reinforcing ribs 12 formed vertically and horizontally in both the left and right areas in the front wide part of the bottom plate 11 which are not, and the circumferential edges of the back of the bottom plate 11 whose width is narrowed by the corners are formed. Accordingly, the side wall 13 formed upright is integrally formed between the reinforcing ribs 12 and the card accommodation space 14 for accommodating the micro SD card 300 is formed, and at the rear of the card accommodation space 14. Subsequently, the nonconducting accommodating space 15 of the contact set 50 is formed. A large contact exposure window 16 is formed in the bottom surface of the nonconductive accommodation space 15. On one side of the card accommodation space 14, a lock member accommodation space 17 is formed adjacent to each other, and the lock member accommodation space 17 is in communication with the card accommodation space 14 via the communication port 18. .

In addition, the base 10 includes a notch portion 201, a step portion 19, and a step portion of the adapter 100 corresponding to the notch portion 201, the step portion 202, and the lock notch 203 of the mini SD card 200. 20 and the lock notch 21 are formed, respectively. In addition, a plurality of cover fitting claws 22 are formed on the left and right outer side surfaces of the wide portion of the base 10, and a cover is provided on the left and right inner side portions of the wide portion of the base 10. An engagement groove 23 is formed.

The cover 30 shown to FIG. 4, FIG. 6 (A) (B) is the main part 31 of the rectangular shape which covers the upper surface in the front wide part of the said base 10, and the main part 31 First speaking portion 32 covering the left and right outer sides in the front wide portion of the base 10 by speaking downward from both left and right edges of the base 10 and flattening rearward from the rear edge of the main portion 31. The left and right sides of the second speaker 33 and the base of the second speaker 33 are narrower than the main part 31 covering the upper surface of the insulator receiving space 15 of the base 10. A first engagement claw 34 which speaks downward from both edges, a second engagement claw 35 which speaks downward from the left and right side portions at the edge of the tip end side of the second speech section 33, and (2) Speak in a U shape at approximately the center of the edge of the distal end of the speaker 33, The folded piece 36 which faces the end toward the inner surface of the second speaker 33, and the intermediate part is formed in succession at the end of the folded piece 36 to form the left and right directions in the inner surface of the second speaker 33. An elastically displaceable connecting terminal 37 which is a leaf spring extending in the contact closing direction) is integrally formed. A plurality of base engaging holes 38 are formed in the first speaker 32.

3, 4, and 7 (A) and (B), the contact set 50 includes 11 contacts 60a to 60k which are the same as the mini SD card 200 in order to correspond to the mini SD card specification. The eleven contacts 60a to 60k are formed of an insulating insulator 70 made of a synthetic resin material which is arranged in the left and right directions in an insulated state and is integrally held.

As shown in FIG. 7 (C), the eleven contacts 60a to 60k are punched out of the conductive thin plate metal, thereby being continuous in the carrier 61 with the connecting piece 62 interposed therebetween. Molded. Then, the insulator 70 is molded by insert molding for the eleven contacts 60a to 60k in such a state, and then the part of the connecting piece 62 is cut and separated together with the carrier 61, thereby making contact. An intermediate assembly of the set 50 is constructed.

Each of the eleven contacts 60a to 60k is formed in a rectangular plate shape, and the micro SD of the contacts 60a to 60k is connected to the front end of each of the contacts 60a to 60k via a continuous part 63 connected to each other. Eight contact spring pieces 64a to 64h which are the same as the card 300 are elongated in a cantilever shape. In addition, the 11 contacts 60a to 60k are arranged in order from the left side to the right contacts 60a to 60k from the left side to the right side, and the four contacts 60a, 1, 2, 10, and 11 are sequentially arranged. 60b, 60j, 60k) for data, 3rd contact 60c for commands, 2nd contacts 60d, 60i for 4th and 9th contacts, 2nd contacts 60e, 60f for 5th and 6th spares 7 contact 60g is for power supply, 8 contact 60h is for clock, and is the same arrangement as the contacts 204a to 204k of the mini SD card 200. On the other hand, in the eight contact spring pieces 64a to 64h, the contact spring pieces 64a to 64h are placed one by one from the left side to the right side from the rear side, and four of the first, the second, the seventh, and the eighth are arranged. The contact spring pieces 64a, 64b, 64g, 64h are for data, the third contact spring piece 64c is for commands, the fourth contact spring piece 64d is for power supply, and the fifth contact spring piece 64e is for clock. 6th contact spring piece 64f is for a gland. That is, the arrangement is the same as that of the contacts 303a to 303h of the micro SD card 300.

In the intermediate assembly, the insulators 70 are formed in a rectangular plate shape that fits into the insulator receiving space 15 of the base 10, and each contact is formed on the lower surface of the insulator 70 together with the continuous portion 63. 60a-60k are lined up in the left-right direction, and it is buried flat, and eight contact spring pieces 64a-64h protrude in the inclined shape which moved forward in the front of the insulator 70. As shown to FIG. Further, the nonconductor 70 includes tool insertion holes 71 and 74a for extracting a predetermined portion of the continuous portion 63 embedded in the lower surface thereof, and a second engagement claw 35 of the cover 30. The cover fitting groove 72 for press-fitting, the folded piece 36 of the cover 30, and the connecting terminal 37 are accommodated, and as shown in FIG. 8, one end of the connecting terminal 37 is one side. Of the four gland contacts 60d, the other end to the other nine gland contacts 60i from above, and a plurality of minus holes 74 for weight reduction. Formed. In addition, one mining hole 74a serves as a tool insertion hole.

After the intermediate assembly is formed, the predetermined portion of the continuous portion 63 embedded in the lower surface of the insulator 70 is removed from the tool insertion holes 71 and 74a, and at the same time, the outside of the insulator 70 is removed. By removing the interconnection points of the continuous portions 63, the contact set 50 shown in Figs. 3, 4 and 7A (B) is formed. In this contact set 50, eight contact spring pieces 64a to 64h are separated into eight contacts 60a to 60c and 60g to 60k via eight consecutive narrow portions 63, each of which is separated and independent. It is continuous in one piece. In addition, three of the remaining four grand contacts 60d and the two preliminary contacts 60e and 60f of the fifth and sixth are separated from the continuous portion 63. Here, similar to the mini SD card 200, the fourth ground contact 60d and the seventh power contact 60g have a rear end portion as compared to the other nine contacts 60a to 60c, 60e, 60f, 60h to 60k. Since the position is protruded rearward (adapter insertion direction), the position is shifted, and the contact on the card connector side is made to contact the other nine contacts (60a to 60c, 60e, 60f, 60h to 60k) in advance. Steps (differences in the outflowing portions) are formed between the rear end positions of the two grand contacts 60d and 60i (see Figs. 2 and 7B). Moreover, the tool insertion hole 71 of the contact set 50 is filled with the resin plug 75 press-filled (refer FIG. 3, FIG. 4).

The lock member 90 shown in FIGS. 3 and 4 is made of a sheet metal made of sheet metal, and has a card engaging portion 91 on the free end side. In addition, the lock member 90 may be formed integrally with the base 10 by resin.

In assembling the adapter 100 for a memory card of the present embodiment, the insulator 70 of the contact set 50 is inserted into the insulator receiving space 15 of the base 10, and the contact exposure of the base 10 is exposed. The contact 16 is exposed through the window 16 to expose the eleven contacts 60a to 60k of the contact set 50 toward the back of the base 10, and at the rear of the card receiving space 11 of the base 10. Eight contact spring pieces 64a to 64h of 50 are projected. That is, the contact set 50 is assembled to the base 10, and the lock member 90 is assembled to the lock member accommodation space 17 of the base 10, and the rear of the lock member 90 is assembled. It is fixed with respect to the base 10, and the card engaging part 91 of the free end side (front side) of the lock member 90 protrudes into the card accommodation space 14 via the communication port 18 (FIG. 3). State shown in). Next, the first engagement claw 34 of the cover 30 is inserted into the cover engagement groove 23 of the base 10 and the cover 30 is provided in the cover engagement groove 72 of the non-conductor 70. The base 10 while inserting the second engaging claw 35 of the cover) and the folded piece 36 of the cover 30 and the connecting terminal 37 into the receiving hole 73 of the insulator 70. The cover member is coated with the cover 30 from above, and the lock member in which the reinforcing rib 12, the card accommodation space 14, and the lock member 90 in the wide front portion of the base 10 are assembled. The upper surface of the accommodating space 17 is integrally covered with the main portion 31 of the cover 30, and the cover 30 is attached to the upper surface of the insulator 70 fitted into the insulator accommodating space 15 of the base 10. ), And the non-conductor 70 is sandwiched between the bottom plate 11 of the base 10 and the second speaker 33 of the cover 30, and the base ( Left in front wide part of 10) The right outer side is covered with the first speaker 32 of the cover 30, and each cover engagement claw 22 of the base 10 is inserted into each base engagement hole 38 of the cover 30. . And finally, the lower edge of each base engagement hole 38 in the 1st extension part 32 of the cover 30 is cocked from inside, and the cover 30 was apply | coated with respect to the base 10. By fixing in a state, assembly is completed. In addition, you may join the base 10 and the nonconductor 70 using methods, such as welding or adhesion | attachment, such as a heat | fever and an ultrasonic wave.

In the assembling completed state, as shown in Figs. 1 and 2, the external dimensions (each dimension of vertical, horizontal and thickness) are substantially the same as the mini SD card 200 corresponding to the mini SD card specification. And, similar to the mini SD card 200, 11 contacts 60a to 60k are exposed in the left and right direction at the rear end side, and the notch portion 19 is formed by removing one edge of the rear side. On the left and right edges of the surface side at the rear end narrowed by the teeth 19, upward stepped portions 20 are formed, and on the surface side in the wider portion that is in front of the notch 19. The lock notches 21 are formed in the left and right side parts, and can be attached to the card connector for the mini SD card 200.

Moreover, the card insertion opening 2 is opened in the front surface, the card accommodation space 11 communicates with the card insertion opening 2, and the eight contact spring pieces 64a-are located in the back part (deep part) of the card accommodation space 11. 64h) are arranged side by side, and the micro SD card 300 can be mounted in the card accommodation space 11 from the card insertion opening 2, and eight contacts 303a of the attached micro SD card 300 are mounted. The free ends of the eight contact spring pieces 64a to 64h can be brought into contact with 303h).

Moreover, the substantially whole surface of the surface and the front half part of a left and right side are comprised by the metal surface, and the other back surface or side surface is comprised by the resin surface. As shown in FIG. 8, the connecting terminal 37 integrally formed in the cover 30 constituting the metal surface has a receiving hole 73 formed in the insulator 70 incorporated together with the folded piece 36. It is disposed in the inner side of one side, and one end part contacts the 4th ground contact 60d of one side, and the other end presses and contacts with the other 9th ground contact 60i from the upper side by itself. By this contact, two non-adjacent gland contacts 60d and 60i among the eleven contacts 60a to 60k are electrically connected between the gland contacts 60d and 60i and the cover 30. . In addition, the joint surface of the main part 31 of the base 10 and the cover 30, and the 1st speaker part 32, and the joint surface of the 2nd speaker part 33 of the cover 30 of the insulator 70 are It is formed in a concave shape from the surrounding outer surface by the plate thickness dimension of the cover 30, the outer surface of the main portion 31 and the first speaker 32 of the cover 30 and the outside of the base 10 around it. The outer surface of the surface of the second speaker 33 of the cover 30 and the surrounding nonconductor 70 is made flat.

When the micro SD card 300 is attached to the memory card adapter 100 assembled as described above, the micro SD card 300 is inserted into the card insertion opening 2 in a normal insertion posture with the front and back and front and rear directions facing the normal direction. The micro SD card 300 resists the card engaging portion 91 of the lock member 90 against the elastic force at the side portion where the lock notch 302 is formed. Inserted into the deep inside of the card accommodation space 14, and eight contacts 303a to 303h formed on the rear side of the rear end of the micro SD card 300 are arranged at the rear of the card accommodation space 14. It comes in contact with the eight contact spring pieces 64a-64h currently, and is electrically connected. In addition, when the micro SD card 300 is inserted into the card accommodation space 14, the front end side of the non-conductor 70 formed at the rear end of the micro SD card 300 is formed at the rear end of the card accommodation space 14. The card engaging portion 91 of the locking member 90 is opposed to the locking notch 302 of the micro SD card 300, and the card engaging portion is opposed by the elastic force. 91 is engaged with the lock notch 302, thereby preventing the micro SD card 300 from falling off.

When the micro SD card 300 mounted on the memory card adapter 100 is pulled out, the front end of the micro SD card 300 is gripped, and the micro SD card 300 is held against the elastic force of the lock member 90. When 300 is pulled forward, the engagement between the lock notch 302 of the micro SD card 300 and the card engaging portion 91 of the lock member 90 is released, thereby removing the micro SD card 300 from the memory card. It can be easily taken out from the adapter 100 for.

Since the micro SD card 300 attached to the memory card adapter 100 is electrically connected to the corresponding eight contacts 60a to 60c and 60g to 60k, these eight contacts 303a to 303h are electrically connected. By attaching the memory card adapter 100 to the card connector for the mini SD card 200, the eight contacts 303a to 303h of the micro SD card 300 correspond to the eight contacts 60a to 60c and 60g. The card connector is electrically connected to the corresponding eight contacts via ˜60k). As a result, the micro SD card 300 can be used as a card connector for the mini SD card 200 like the mini SD card 200. In addition, since the two non-adjacent gland contacts 60d and 60i among the eleven contacts 60a to 60k are electrically connected between the gland contacts 60d and 60i and the cover 30, the adapter 100 The ground contact which becomes the floating gland can be eliminated, and the adapter 100 can be provided with an electrostatic breakdown prevention function.

As described above, an elastically displaceable connecting terminal 37 is integrally formed on the conductive (metal) cover 30, which is one of the component parts of the adapter main body 1, and the connecting terminal 37 In contact with the gland contacts 60d and 60i, the gland contacts 60d and 60i and the gland contacts 60d and 60i were electrically connected to the cover 30. The contact for the grand which becomes the floating gland can be eliminated, and the adapter 100 can be provided with an electrostatic breakdown prevention function. In addition, since the connection terminal 37 contacts the gland contacts 60d and 60i by the elasticity of the connection terminal 37, the dimensional error of the component itself of the adapter 100, the dimensional error of the assembly, and the adapter (at the time of use) Even if deformation due to external force or heat added to 100) occurs, the contact with the ground contacts 60d and 60i can be maintained by itself while absorbing it, thereby ensuring high contact reliability. Therefore, the electrostatic breakdown prevention function of the adapter 100 can be reliably maintained.

In addition, the cover 30 is formed by integrally forming the first speaker 32 located on the outer side along the insertion direction of the adapter main body 1, so that the adapter main body 1 moves up, down, left, and right when using the adapter. Even if gripped in the direction, the cover 30 portion of the adapter main body 1 is gripped, so that it is possible to have an electrostatic breakdown prevention function that reliably functions irrespective of the holding state of the adapter main body 1.

Moreover, the cover 30 is integrally formed with the 2nd speech part 33 which speaks an edge part in the position which opposes the part exposed from the adapter main body 1 of several contacts 60a-60k, and the 2nd The folded piece 36 is integrally formed at the end of the speaker 33, and the connecting terminal 37 is integrally formed at the end of the folded piece 36, and the inner side of the second speaker 33 is formed. Since the connection terminal 37 is formed, the connection terminal 37 does not protrude to the outside of the cover 30, and there is less risk of the connection terminal 37 being folded and broken when assembling the adapter. In addition, a conductive (metal) cover that can be made thinner in a portion exposed from the adapter body 1 of the plurality of contacts 60a to 60k can be made thinner, not an insulating (resin made) cover that cannot be made very thin. 2) The connecting terminal 37 is disposed through the piece 36 folded in the gap formed between them so that the second speaker 33 of the cover 30 faces each other, so that the adapter of the connecting terminal 37 The elastic displacement amount in the thickness direction can be made larger, and accordingly, the elasticity of the connection terminal 37 (contact pressure with the contacts 60d and 60i for the ground) can also be made larger, resulting in higher contact of the connection terminal 37. Reliability can be secured. In addition, the connection terminal 37 partially cuts up the second speech section 33 of the cover 30 and forms a hole in the second speech section 33 without the hole. Since it is formed in the inner surface side of the 2nd extension part 33 via the folded piece 36 integrally formed in the edge part of (), it is effective also at the point of dustproof and waterproof.

In addition, the connecting terminal 37 is formed in the parallel direction of the plurality of contacts 60a to 60k from the end of the folded piece 36, and the width direction of the connecting terminal 37 is the width of the contact 60a to 60k. Corresponding to the longitudinal direction, the width dimension of the connecting terminal 37 can be made larger than the width dimension of the contacts 60a to 60k, and the width dimension of the folded piece 36 is also larger than the width dimension of the contacts 60a to 60k. Since it can be taken large, the risk that the connection terminal 37 is folded and broken at the time of adapter assembly can be further reduced. In addition, the width dimension of the connection terminal 37 can be made larger than the width dimension of the contacts 60a to 60k, thereby ensuring stable and reliable contactability with the expansion of the contact area with the ground contacts 60d and 60i. It is possible to secure higher contact reliability of the connection terminal 37.

In addition, the insulator 70 which holds the plurality of contacts 60a to 60k in an insulated state is sandwiched between the second speaker 33 and the base 10, and the receiving hole formed in the insulator 70 ( 73 is provided with a folded portion 36 and a connection terminal 37. Even if a compressive load in the thickness direction is added to the adapter body 1 when the adapter is used, the insulator 70 serves as a spacer. As a result, the folded portion 36 and the connecting terminal 37 are not crushed by the compressive load and plastically deformed, so that the function of the connecting terminal 37 can be reliably maintained.

As mentioned above, although this embodiment showed an example of the very suitable embodiment of this invention, this invention is not limited to it, A various deformation | transformation can be implemented within the range which does not deviate from the summary. For example, the micro SD card 300 can be suitably applied to other types of memory card adapters other than the memory card adapter that allows the micro SD card 300 to be used as a card connector for the SD card.

According to the invention as set forth in claim 1, an electrically displaceable connecting terminal is integrally formed on a conductive (metal) cover which is one of the component parts of the adapter main body, and the connecting terminal is brought into contact with a plurality of gland contacts. Since the ground contacts are electrically connected between the ground contacts and the cover, it is possible to eliminate the ground contact that becomes the floating ground in the adapter and to provide the adapter with an electrostatic breakdown prevention function. In addition, since the connection terminal contacts the gland contact due to its elasticity, even if there is a dimensional error of the component itself of the adapter, a dimensional error of the assembly, or deformation caused by external force or heat added to the adapter at the time of use, While absorbing, the contact with the ground contact can be maintained by itself, thereby ensuring high contact reliability. Therefore, the electrostatic breakdown prevention function of the adapter can be reliably maintained.

According to the invention according to claim 2, the cover is formed integrally with the first speaker located on the outer side along the insertion direction of the adapter main body, and the adapter main body is gripped in any of the up, down, left and right directions when the adapter is used. Since the cover portion of the main body is gripped, it is possible to have an electrostatic breakdown prevention function that reliably functions regardless of the holding state of the adapter main body.

According to the invention of claim 3, the cover is integrally formed with a second speech portion for extending an end portion at a position opposed to a portion exposed from the adapter main body of a plurality of contacts, and a piece folded at an end portion of the second speech portion. The connecting terminal is integrally formed at the end of the folded piece, and the connecting terminal is formed on the inner side of the second speaker, and the connecting terminal does not protrude to the outside of the cover, Less risk of folds and breaks In addition, in the part exposed from the adapter main body of a plurality of contacts, the second speech portion of the conductive (metallic) cover that can be made thinner is not an insulating (resinous) cover which cannot be made very thin. On the other hand, since the connection terminals are disposed through the pieces folded between the gaps formed therebetween, the amount of elastic displacement in the adapter thickness direction of the connection terminals can be made larger, and accordingly the elasticity of the connection terminals (contact with the ground contact). Pressure) can be increased, and higher contact reliability of the connection terminal can be ensured. Moreover, the connection terminal partly raises the 2nd speech part of a cover, and forms the 2nd speech part through the folded piece integrally formed in the edge part of a 2nd speech part, without making a hole in the 2nd speech part. Since it is formed on the inner surface side, it is effective also in terms of dustproof and waterproof.

According to the invention as set forth in claim 4, the connecting terminal is formed by extending in a parallel direction of a plurality of contacts from an end of the folded one, the width direction of the connecting terminal corresponds to the longitudinal direction of the contact, and the width dimension of the connecting terminal is The width dimension can be larger than the width dimension, and the width dimension of the folded piece can also be larger than the width dimension of the contact, thereby reducing the risk of the connection terminal being folded and broken when assembling the adapter. In addition, the width dimension of the connection terminal can be made larger than the width dimension of the contact, thereby ensuring stable and reliable contact with the expansion of the contact area with the ground contact, and ensuring higher contact reliability of the connection terminal. can do.

According to the invention as set forth in claim 5, a non-conductor for maintaining a plurality of contacts in an insulating state is sandwiched between the second speaker and the base, and a folded portion and a connection terminal are provided inside the receiving hole formed in the non-conductor. Even if a compressive load in the thickness direction is added to the adapter body when the adapter is used, the non-conductor plays the role of a spacer, so that the folded portion and the connecting terminal are not squeezed out by the compressive load and plastically deformed. The function can be surely maintained.

Claims (5)

In a memory card adapter, which allows a small memory card to be used as a card connector for a larger memory card, a small memory having a plurality of contacts in which an external dimension corresponding to the large memory card specification is formed. An adapter main body having a large memory card type for mounting a card, the adapter main body comprising an insulating base and a conductive cover, wherein the cover is integrally formed with an elastically displaceable connecting terminal, and the connecting terminal has a plurality of connection terminals. An adapter for a memory card which is brought into contact with a ground contact and electrically connects the ground contacts with the ground contact and the cover. The method of claim 1, A memory card adapter, characterized in that the cover is integrally formed with a first extending portion located on an outer side along the insertion direction of the adapter main body. The method according to claim 1 or 2, In the cover, a second speech portion for extending the end is integrally formed at a position opposite to the portion exposed from the adapter body of the plurality of contacts, and a piece folded at the end of the second speech portion is integrally formed, and the folded portion is integrally formed. An adapter for a memory card, wherein the connecting terminal is integrally formed at one end of the biasing unit, and the connecting terminal is formed at the inner side of the second speaker. The method of claim 3, wherein A connector for a memory card, wherein the connecting terminal is formed in the parallel direction of a plurality of contacts from an end of the folded piece. The method according to claim 3 or 4, A non-insulator for holding a plurality of contacts in an insulating state is inserted between the second speaker and the base, and a folded portion and a connection terminal are provided inside the receiving hole formed in the non-conductor. Adapter for the card.

Images