KR100884430B1 - Memory card socket structure - Google Patents

Abstract

When a long terminal is contained in a some contact terminal, in order to obtain the memory card holding structure which can suppress the deformation | transformation of the said long terminal, the front-end | tip part 10a of the long terminal 10L among the some contact terminal 10 is carried out. The support part 15 which supports the side (namely, the front end side rather than the support position of the short terminal 10S) to the base shell 2 side is provided.

Description

Memory Card Retention Structure {MEMORY CARD SOCKET STRUCTURE}

1 is a perspective view of a memory card holding structure according to a first embodiment of the present invention, before the memory card is inserted;

Fig. 2 is a perspective view of the memory card holding structure according to the first embodiment of the present invention, showing a state in which a memory card is inserted;

3 is an exploded perspective view of a memory card holding structure according to the first embodiment of the present invention;

4 is a plan view in a state where the shell cover of the memory card holding structure according to the first embodiment of the present invention is detached, showing a state before the memory card is mounted;

Fig. 5 is a plan view in a state where the shell cover of the memory card holding structure according to the first embodiment of the present invention is removed, showing a state in which a memory card is mounted;

6 is a plan view of a plurality of contact terminals fixed to a contact block according to a first embodiment of the present invention;

7 is a perspective view of a plurality of contact terminals fixed to a contact block according to a first embodiment of the present invention, as viewed from the bottom;

8 is a sectional view corresponding to a line VIII-VIII in FIG. 6 of the memory card holding structure according to the first embodiment of the present invention;

9 is a sectional view of a modification of the memory card holding structure according to FIG. 8;

10 is a sectional view of another modification of the memory card holding structure according to FIG. 8;

Explanation of symbols for the main parts of the drawings

1: Memory Card Retention Structure 1a: Card Receptacle

1b: slot 2: base shell

3: cover shell 5: contact block

10: contact terminal 10a: distal end of the contact terminal

10S: short terminal 10L: long terminal

15: Support part (insulation member, protrusion) 15A, 15B: Support part (insulation member)

20: memory card

The present invention relates to a memory card holding structure.

Recently, a memory card holding structure for inserting and detaching a small storage medium (hereinafter referred to as a memory card) such as a mini SD memory card (registered trademark) in various electronic devices such as a digital camera or a mobile phone is installed. The thing which I attached increases.

In this kind of memory card holding structure, each contact is made to each terminal (I / O contact surface) of the memory card, with the memory card being inserted into a card receiving portion formed in a case of a memory card, which is typically fixed on the electronic device side. A plurality of contact terminals (contacts) described above are provided, and transmission and reception of various data and signals are performed between the memory card and the electronic device via these contact terminals (see Patent Document 1, for example).

In this patent document 1, several contact terminal is provided according to the number of terminals (electrodes) of a memory card. The proximal end of each contact terminal is fixed to a contact block provided on the inner side of the card accommodating portion, while the distal end protrudes into the card accommodating portion, and the distal end portion and the terminal of the memory card are in contact with each other.

The plurality of contact terminals include short terminals and long terminals corresponding to the setting positions of the terminals (electrodes) of the memory card.

[Patent Document 1] Japanese Patent Laid-Open No. 2004-119148 (4 pages, Fig. 18)

However, in such a conventional memory card holding structure, when the bending amount is set equally in the long terminal and the short terminal, the contact surface pressure with the terminal of the memory card of the long terminal becomes lower than the contact surface pressure with the terminal of the memory card of the short terminal. In addition, some of the long terminals are susceptible to dimensional deviations and the like, and therefore, bending deformation and buckling deformation are likely to occur due to the force or thermal stress applied when the memory card is inserted. If such deformation occurs, the contact surface pressure of the long terminal and the memory card terminal may decrease, which may cause contact failure.

In addition, when the case is formed of a metal conductor, the tip of the bent long terminal may be in contact with the case and electrically shorted.

Therefore, an object of the present invention is to obtain a memory card holding structure capable of ensuring the contact surface pressure of the long terminal and suppressing deformation when the long terminal is included in the plurality of contact terminals.

According to a first aspect of the present invention, there is provided a base shell and a cover shell facing the front and back sides of a memory card, a contact block provided on an inner side of a card receiving portion formed by the base shell and the cover shell, and fixed to the contact block. A memory card holding structure comprising: a plurality of contact terminals extending toward the insertion port side in the card receiving portion and in contact with terminals of a memory card, wherein the plurality of contact terminals include short terminals and long terminals; The support position at which the long terminal is supported by the base shell is characterized in that the short terminal is positioned closer to the insertion opening side than the support position at which the short terminal is supported by the contact block.

In the second aspect of the present invention, the base shell is formed of a conductive metal, an insulation member is interposed between the base shell and the elongated terminal, and the elongated terminal is supported by the base shell via the elongated insulation member. It is characterized by that.

In the third aspect of the present invention, the contact block is projected along the base shell toward the inside of the card receiving portion, and the long terminal is supported by the protruding portion.

In a fourth aspect of the present invention, there is provided a movement regulating mechanism for restricting the movement of the long terminal relative to the base shell.

According to the first aspect of the present invention, since the long terminal is supported at the position of the tip side than the support position of the short terminal by the contact block, the bending length of the long terminal can be shortened to reduce the amount of warp of the long terminal. By suppressing the deformation of the long terminal, it is possible to suppress the decrease in the contact surface pressure with the terminal of the memory card, furthermore, the contact failure.

For this reason, in the case where the base shell is formed of a conductive metal, there is an advantage that short circuit occurs due to contact between the long terminal and the base shell.

According to the second aspect of the present invention, since the long terminal is supported by the base shell made of the conductive metal via the insulating member, short circuit can be suppressed from occurring between the long terminal and the base shell.

In addition, since the contact block is usually formed of an insulating member, a part of the contact block may be interposed between the long terminal and the base shell. In this case, the number of parts is reduced compared to the case where the insulating member is separately provided. There is an advantage that the labor required for manufacturing is reduced, and the manufacturing cost can be reduced.

According to the third aspect of the present invention, since the long block is supported at the portion where the contact block protrudes toward the inside of the card receiving portion along the base shell, the component score is reduced as compared with the case where the supporting portion is configured separately. Further, there is an advantage that the labor required for manufacturing can be reduced, and the manufacturing cost can be reduced.

In addition, by stretching the contact block toward the inside of the card housing portion, the deformation of the long terminal can be more surely suppressed, and the fall and rotation of the contact block can be suppressed, and further, the support rigidity of the memory card can be suppressed. There is also an advantage that it can be increased.

According to the fourth aspect of the present invention, since the relative movement of the long terminal relative to the base shell is restricted, the memory card may be caught by the long terminal, or the contact surface pressure on the memory card may be excessive, resulting in wear, deformation, or the like. Is suppressed. In addition, there is an advantage that the positioning accuracy of the contact position with respect to the terminal of the memory card of the long terminal is improved, so that poor contact or the like is less likely to occur.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail, referring drawings. 1 to 8 show a first embodiment of the memory card holding structure according to the present invention, Fig. 1 is a perspective view of the memory card holding structure, and Fig. 2 is a perspective view of the memory card holding structure, in which the memory card is mounted. 3 is an exploded perspective view of the memory card holding structure.

4 and 5 are plan views of the memory card holding structure with the shell cover removed showing the state in which the memory card is inserted. Fig. 6 is a plan view of a plurality of contact terminals fixed to the contact block, and Fig. 7 is a contact. A plurality of contact terminals fixed to the block are viewed from the bottom side, and FIG. 8 is a sectional view corresponding to the line VIII-VIII of FIG. 6 of the memory card holding structure.

The memory card holding structure 1 according to the present embodiment is mounted on an electronic device or the like (not shown) and functions as a socket for inserting and detaching the memory card 20 in a removable manner. In the state where the memory card 20 is mounted, the terminals (electrodes; not shown) exposed on the surface or the back of the memory card 20 and the contact terminals 10 provided on the memory card holding structure 1 come into contact with each other so as to be conductive. The data, the signal, and the like can be transmitted between the electronic device and the memory card 20.

In addition, this memory card holding structure 1 inserts and pushes the memory card 20 into the card receiving portion 1a as a recess from the opening (entrance) 1b so that the memory card 20 is mounted in a predetermined manner. It is configured as having a so-called push-on / push-off function in which the lock is released in the state and the lock is released by pushing it again so that the memory card 20 pops out from the insertion port 1b of the card housing portion 1a.

The memory card holding structure 1 is basically a case consisting of a flat rectangular tube shape having an elongated strip-shaped insertion opening 1b formed on one side (front surface), and an insertion opening 1b in the card receiving portion 1a of the case. A slider 4 supported so as to be able to advance and retreat between a side and an inner side, a coil spring 7 as a pressurizing mechanism for applying a force to the insertion opening 1b side within the card receiving portion 1a, and a card The contact block 5 provided in the inner side of the accommodating part 1a, and the several contact terminal 10 fixed to the said contact block 5 are comprised.

In other words, in the memory card holding structure 1, the memory card is formed by a base shell 2 and a cover shell 3 formed of a conductive metal plate such as stainless steel and arranged opposite to the front and back directions of the memory card 20. A card accommodating portion 1a is formed which accommodates 20 so as to be inserted and detached. In the present embodiment, the base shell 2 and the cover shell 3 are formed of a metal material to secure the rigidity and strength of the case, and are used as ground (earth) by using the conductive material.

The base shell 2 has a substantially square base wall portion 2a, and bends a pair of opposing pairs of widthwise end edges of the base wall portion 2a at approximately right angles to form side walls 2b and 2c having a substantially constant height. The flat cross section is formed in U shape as a whole.

Of the pair of side walls 2b and 2c, the edge portion of the base wall portion 2a is erected at the end of the side of the insertion port 1b of the side wall 2c on one side (the far side in Fig. 3), so that the slider 4 A stopper 2d is formed to prevent falling from the insertion port 1b, and the base wall portion 2a has a claw 2e for hooking and attaching the contact block 5, the insertion of the memory card 20, A projection bar 2f extending along the separation direction is provided.

On the other hand, as shown in FIG. 3, the cover shell 3 has a substantially square flat plate shape that is the same shape as the base wall portion 2a of the base shell 2 by a metal plate such as stainless steel as in the base shell 2. The cover shell 3 is formed with spring structures 3a and 3b for pressing the memory card 20 and spring structures 3c for pressing the pin 6 described later.

Then, the cover shell 3 is mounted on the upright ends of the side walls 2b and 2c of the base shell 2 and joined to the cover shell 3 and the base shell 2 by laser welding or the like. The card accommodating part 1a is formed by this.

The slider 4 is engaged with the protruding bar 2f provided in the base shell 2 by the recessed part 4a formed in the said slider 4, and the one side (distant side in FIG. 3) is engaged. It is made to guide forward and backward along the side wall 2c. The slider 4 is provided with a locking portion 4b suitable for the stepped portion 20a (see Fig. 4) at the one side edge of the memory card 20, and is opposite to the insertion direction than the stepped portion 20a. A projection 4c is formed to engage with the cutout 20b (see Fig. 4) of the memory card 20 formed on the side.

Therefore, when the memory card 20 is inserted into the card receiving portion 1a from the insertion hole 1b of the memory card holding structure 1, the memory card 20 hits the stepped portion 20a against the catching portion 4b. Simultaneously with the needle, the notch 20b engages with the protrusion 4c, so that the inside of the card accommodating portion 1a can be moved forward and backward while the memory card 20 is held by the slider 4.

The slider 4 defines a pin 6 rotatably supported at one end 6a by a fitting hole 5a of the contact block 5 and a predetermined end 6b of the pin 6. The card accommodating part 1a by the groove part 4d which guides a path | route, and the coil spring 7 which is interposed between the slider 4 and the contact block 5, and applies a force to the insertion port 1b side by the slider 4a. Position is regulated.

An appropriate step is provided on the bottom of the groove 4d, and the other end 6b of the pin 6 is pushed on the side wall of the groove 4d by a pressing force of the coil spring 7 or a force pushing the memory card 20. By contacting with the bottom wall of the groove part 4d by the spring structure 3c provided in the cover shell 3, the other end part 6b of the pin 6 is prescribed | regulated without backing at least in arbitrary sections. Guide you to the desired path.

Then, a part of the insertion port 1b side of the groove portion 4d is formed into a substantially heart shape in plan view, and a so-called heart cam mechanism is formed, and the push-on / push-off function of the memory card 20 described above is implemented. .

The contact block 5 includes an inner wall portion 5b and a side wall portion 5c in which the insulating resin is formed into a substantially L-shape in plan view, and the inner wall portion 5b is provided on the inner side of the card accommodating portion 1a. To the base shell 2, while the side wall portion 5c is disposed along one side wall 2b (right side in FIG. 3) of the card receiving portion 1a. It is fixed through.

A plurality of contact terminals 10 formed in a rod shape by a conductive metal penetrate and support the inner wall portion 5b, and the tip portion 10a of the contact terminals 10 is inserted from the inner wall portion 5b by the insertion opening 1b. Protrudes into the card receiving portion 1a.

The memory card 20 is inserted between the contact terminal 10 and the cover shell 3, and the curved portion 10 protrudes smoothly in the direction of the cover shell 3 on the tip portion 10a of the contact terminal 10. 10b is formed, and when the memory card 20 is mounted at a predetermined position on the inner side of the card receiving portion 1a, the curved portion 10b faces the base shell 2 of the memory card 20 ( The electrode formed on the lower surface of the figure).

In addition, the guide pin 11 inserted into the inside of the coil spring 7 is fixed to the inner wall part 5b, and the guide pin 11 prevents the buckling deformation of the coil spring 7.

3, the movable arm 12 is supported by the cylindrical protrusion 5d protruding from the inner wall part 5b of the contact block 5 so that rotational movement is possible, and the movable arm 12 The rotary tip 12a of the card is held by the tip of the memory card 20 inserted in the state in which a force is applied in the direction of the insertion opening 1b by the torsion spring 13 fitted to the circumferential protrusion 5d. It is pushed to the inner side of the containing portion 1a.

Therefore, as shown in FIG. 4, the movable arm 12 is in the state in which the memory card 20 is not inserted to the mounting position of the inner side of the card accommodating part 1a, and in the state which is not in contact with the movable arm 12. FIG. The rotary motion leading end portion 12a is in a state of being extruded in the direction of the insertion hole 1b, and as shown in Fig. 5, the memory card 20 is inserted into the mounting position on the inner side of the card receiving portion 1a. In the rotary arm 12a of the movable arm 12, the inner side of the card receiving portion 1a is positioned.

That is, the movable arm 12 rotates between the position of the insertion opening 1b side shown in FIG. 4, and the position of the inner side shown in FIG. 5 with advancement of the memory card 20, and the movable arm 12 ) Is in the position of the insertion opening 1b side, electrically shorts the two fixed contacts 14 and 14a fixed to the contact block 5, while the movable arm 12 is in the inner side position. At this time, the electrical conduction between the two fixed contacts 14 and 14a is interrupted.

Therefore, by detecting the electrical conduction state between the fixed contacts 14 and 14a, it is possible to detect whether the memory card 20 is set at a predetermined position of the memory card holding structure 1.

On the other hand, the side wall part 5c extends from the inner side to the insertion opening 1b side in the width direction one end part of the card accommodating part 1a, and the fall and rotation of the contact block 5 are prevented by this. At the same time, the support rigidity of the case is increased. In this case, the side wall portion 5c is preferably in contact with both the base shell 2 and the cover shell 3.

Here, in the present embodiment, as shown in Fig. 6, the plurality of contact terminals 10 are configured as a set of short terminals 10S and long terminals 10L in accordance with the terminal position of the memory card 20. As shown in FIG.

As shown in FIG. 7 and FIG. 8, of the short terminal 10S and the long terminal 10L constituting the plurality of contact terminals 10, the long terminal 10L is at its front end portion 10a side. On the base shell 2 side, a supporting portion 15 is provided.

The support part 15 is formed of insulating resin as an insulating member integrated at least on the opposite side (see Fig. 8) of the long terminal 10L to the base shell 2, and the insulating resin is formed of the long terminal 10L and the base shell ( 2) (in detail, between the base wall part 2a), the long terminal 10L and the base shell 2 are spaced apart by a predetermined distance.

In other words, in the present embodiment, when the contact block 5 is molded from an insulating resin, the contact terminals 10 are simultaneously insert molded, and at the time of insert molding, the support 15 is simultaneously inserted into the same insulating resin. It is.

The support part 15 extends integrally from the contact block 5 to the substantially center part of the longitudinal direction of the long terminal 10L in this embodiment, and surrounds the outer periphery of the long terminal 10L with insulating resin, In particular, its insulating property The resin forms a thickness on the opposite side to the base shell 2 thicker than the other portions, and secures a predetermined distance between the base wall portion 2a and the long terminal 10L by the thickness portion.

At this time, as shown in FIGS. 3 and 8, the insulating resin surrounding the long terminal 10L is insulated on a part of the opposite side (upper side in FIG. 3) of the long terminal 10L to the cover shell 3. The exposed part 15a which does not cast resin is provided.

By providing the exposed portion 15a in the insulating resin in this manner, when the insert molding is made of the insulating resin, the thermal contraction rate when the molten insulating resin is cured is increased on the base shell 2 side (lower side in the drawing). The long terminal 10L can be prevented from being flipped to the cover shell 3 side (upper side in the figure), and furthermore, the reaction force received from the long terminal 10L when the memory card 20 is removed and inserted is excessively increased. Can be suppressed.

In addition, in the present embodiment, as shown in FIG. 7 and FIG. 8, the press-in protrusion 16 is provided on the support 15 so as to restrict the movement of the long terminal 10L relative to the base shell 2.

The indentation protrusion 16 is integrally protruded into a short cylindrical shape from the tip of the base shell 2 side (lower side in the drawing) of the supporting portion 15, and the indentation protrusion 16 is the base wall portion of the base shell 2. It press-fits into the fitting hole 2g formed in (2a). That is, in this embodiment, the movement restricting mechanism is constituted by the press-fit projection 16 and the fitting hole 2g.

According to the memory card holding structure according to the present embodiment, among the short terminal 10S and the long terminal 10L constituting the contact terminal 10, the front end portion 10a side of the long terminal 10L, that is, the short terminal ( Since the front end side is supported by the base shell 2 via the support part 15 than the support position of 10S, the spring constant of the front end part 10a of the long terminal 10L which contacts the terminal of the memory card 20 becomes large. By suppressing deformation of the long terminal 10L, it is possible to suppress a decrease in the contact surface pressure between the long terminal 10L and the terminal of the memory card 20, furthermore, a poor contact.

In addition, even when the contact terminal 10 including the short terminal 10S and the long terminal 10L is bent and deformed due to thermal stress, the supporting portion 15 supports the front end portion 10a side of the long terminal 10L. Therefore, since the amount of warpage deformation of the long terminal 10L can be suppressed to a small degree, the front end portion 10a can be prevented from contacting the base shell 2 of the memory card holding structure 1, so that the long terminal 10L Electrical short-circuit with the base shell 2 formed of the conductive metal can be suppressed.

At this time, if the distance from the support position to the tip of each terminal 10L or 10S is approximately equal, the contact surface pressure between the terminal of the memory card 20 is approximately equal to that of the long terminal 10L and the short terminal 10S. It can be set equally, and it can suppress that only a specific terminal wears.

In addition, in this embodiment, in addition to the said effect, the support part 15 is formed with insulating resin, the long terminal 10L is integrated at least on the opposite side to the base shell 2, and the insulating resin is 10L long terminal. ) And the long terminal 10L and the base shell 2 (base wall portion 2a) are interposed between the base shell 2 and the base shell 2 by a predetermined distance. Since the distance of the base shell 2 can be kept constant, insulation can be ensured at the same time, while ensuring the positional accuracy of the long terminal 10L.

Furthermore, the support part 15 is formed as a part which protruded the contact block 5 along the base wall part 2a of the base shell 2 toward the inside of the card accommodation part 1a, and by the said support part 15 Since the long terminal 10L is supported, there is an advantage that the number of parts can be reduced, and further, the labor required for manufacturing can be reduced, and the manufacturing cost can be reduced as compared with the case where the supporting portion is formed separately.

In addition, the projected portion, that is, the support portion 15 can more reliably suppress the deformation of the long terminal 10L, further suppress the fall and rotation of the contact block 5, and increase the rigidity of the case. It also works.

Moreover, by providing the press-fitting protrusion 16 in the support part 15 and press-fitting the press-fitting protrusion 16 into the fitting hole 2g of the base shell 2, the long terminal 10L is a base shell ( Since the movement relative to 2) is restricted and the long terminal 10L can suppress deformation in the direction in which the long terminal 10L rises from the base shell 2, the memory card 20 is inserted into the card accommodating portion 1a. At the time of insertion, the long terminal 10L can be prevented from floating and the memory card 20 is caught in it, and the contact surface pressure with respect to the electrode of the inserted memory card 20 becomes excessive, and the long terminal ( 10L) and the wear and deformation of the electrode of the memory card 20 can be suppressed.

Next, FIG. 9 and FIG. 10 show an embodiment separate from the above embodiment, and the same components as those of the above embodiment will be described with the same reference numerals and the description thereof will not be repeated. 9 and 10 have shown sectional drawing of a support part.

That is, in the said embodiment, as shown in FIG. 8, the case where the support part 15 protruded the insulating resin continuously from the contact block 5 to the substantially center part in the longitudinal direction of the elongate terminal 10L was disclosed, but in FIG. In the related embodiment, 15 A of support parts are not provided continuously with the contact block 5, but are partially provided in the center part of the longitudinal direction of 10 L of longitudinal terminals. Of course, the supporting portion 15A is provided on the base shell 2 side (lower side in the drawing) of the long terminal 10L and is formed of an insulating resin.

Next, in the embodiment concerning FIG. 10, the substantially V-shaped bent part 15b which protrudes toward the base shell 2 side is formed in the substantially center part of the longitudinal direction of 10 L of long terminals, and the bent part 15b is supported by the support part 15B. ), The bent tip 15c is brought into contact with the base shell 2. In this case, when the base shell 2 is formed of a conductive metal, an insulating member such as resin may be adhered to the outer side (base shell 2 side) of the bent tip portion 15c. In addition, an insulating member may be provided on the base shell 2 side.

Therefore, also in the embodiment of FIG. 9, FIG. 10 mentioned above, since the front-end | tip part 10a of 10 L of long terminals is supported by the base shell 2 side, the effect similar to the said embodiment can be acquired. Also in these embodiments, it is preferable to provide a movement control mechanism for restricting the movement of the long terminal 10L relative to the base shell 2.

According to the present invention, since the long terminal is supported at the position of the tip side rather than the support position of the short terminal by the contact block, the bending length of the long terminal can be shortened to reduce the amount of warpage of the long terminal. By suppressing deformation of the long terminal, it is possible to suppress a decrease in the contact surface pressure with the terminal of the memory card, furthermore, poor contact or the like. For this reason, in the case where the base shell is formed of a conductive metal, there is an advantage that short circuit occurs due to contact between the long terminal and the base shell.

Further, according to the present invention, since the long terminal is supported by the base shell made of a conductive metal via the insulating member, short circuit can be suppressed from occurring between the long terminal and the base shell. Since the contact block is usually formed of an insulating member, a part of the contact block may be interposed between the long terminal and the base shell. In this case, the number of parts is reduced compared to the case where the insulating member is separately provided, and furthermore, There is an advantage that the labor required is reduced and the manufacturing cost can be reduced.

In addition, according to the present invention, since the long contact is supported at the portion where the contact block protrudes inward toward the inside of the card receiving portion along the base shell, the parts score is reduced and compared to the case where the supporting portion is separately configured. Furthermore, there is an advantage that the labor required for manufacture is reduced, and the manufacturing cost can be reduced. In this way, by stretching the contact block toward the inside of the card housing portion, deformation of the long terminal can be more reliably suppressed, and the fall and rotation of the contact block can be suppressed, and further, the support rigidity of the memory card can be increased. There is also an advantage.

Further, according to the present invention, since the relative movement of the long terminal relative to the base shell is regulated, the memory card is prevented from being caught by the long terminal, the contact surface pressure on the memory card is excessive, and wear and deformation are caused. do. In addition, there is an advantage that the positioning accuracy of the contact position with respect to the terminal of the memory card of the long terminal is improved, so that poor contact or the like is less likely to occur.

As mentioned above, although the preferable Example of this invention was described, this invention is not limited to the said Example, A various deformation | transformation is possible.

Claims (4)

A base shell and a cover shell facing the front and back sides of the memory card, A contact block provided on the inner side of the card receiving portion formed by the base shell and the cover shell; A plurality of contact terminals fixed to the contact block and extending toward the insertion port side in the card receiving portion and in contact with the terminals of the memory card, In the memory card holding structure comprising a first terminal and a second terminal in the plurality of contact terminals, the second terminal is longer than the first terminal, The support position closest to the tip of the second terminal is located closer to the insertion opening than the support position closest to the tip of the first terminal. A movement regulating mechanism is provided to regulate the movement of the second terminal relative to the base shell, and the movement regulating mechanism is press-fitted in a portion protruding the contact block toward the inside of the card receiving portion along the base shell. And a fitting hole formed in the base shell. The method of claim 1, Wherein the base shell is formed of a conductive metal, an insulating member is interposed between the base shell and the second terminal, and the second terminal is supported by the base shell via the insulating member. Maintenance structure. delete delete

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