CN102403608B - Connector for memory card - Google Patents

Abstract

The invention provides a memory card connector which needs no processing of the housing, has a simple structure and can prevent a memory card from being inserted in a wrong gesture. A leaf spring supported by a cantilever is integrally formed on a cover. At least a mis-insertion preventing plate part at the free end of the leaf spring is inclined towards the lower part of the cover. The rear side face and the card inserting direction face a card receiving part in an orthogonal way and pass through the moving track of the inclined face of a memory card inserted in the card receiving part. The inclined face of the memory card inserted in a normal gesture abuts on the lower part of the rear side surface. The mis-insertion preventing plate is pushed. The flat face of the memory card inserted in a wrong gesture abuts on the rear side surface. Then the mis-insertion preventing plate is limited.

Description

Connector for memory card

technical field

The present invention relates to a memory card connector for connecting a memory card housed in a card storage unit to an electronic device, and more specifically, to a memory card connector provided with a wrong insertion prevention mechanism that restricts the insertion of a memory card that is to be inserted in an incorrect posture. Connector for memory card.

Background technique

Conventionally, as shown in FIG. 8 , in a memory card 10 such as a large SD card, an inclined surface 10 a is formed on the front side in the direction of insertion into the card storage portion. As shown in FIG. 11, in the memory card connector 100 connected to the memory card 10 formed with the inclined surface 10a, a mis-insertion prevention protrusion 101 etc. is formed at a portion notched by the inclined surface 10a of the memory card 10, so that Insertion of the memory card 10 to be inserted into the card housing portion 103 in a front-to-back or front-to-back posture (hereinafter referred to as a wrong posture) is excluded (Patent Document 1).

A plurality of grooves 11, 11 . The inclined surface 10a is formed, and the conductive sheet 12a of this part is exposed slightly behind (downward in FIG. 8 ) than the other conductive sheets 12 . Therefore, the contact 102a of the memory card connector 100 that is in contact with the conductive piece 12a is also shown in FIG. The other conductive sheet 12 first comes into contact with the protruding contact 102a, and the above-mentioned mis-insertion prevention protrusion 101 is erected and provided at a position rearward of the contact 102a.

Patent Document 1: Japanese Patent No. 3924677

The memory card connector 100 equipped with the above-mentioned mis-insertion prevention mechanism must make the height of the mis-insertion prevention protrusion 101 be at least 100°C, as shown in FIG. The height of the groove 11 is limited. For example, the depth of the groove 11 is about 0.5 mm, and the mis-insertion prevention protrusion 101 needs to be at least 0.5 mm or less in height.

On the other hand, in order to shield the contacts 102 and the memory card 10, the card receiving portion 103 is often covered by a cover 104 made of an elastic material such as a metal plate. 104 bends over the mis-insertion prevention protrusion 101, and there is a possibility that the mis-insertion prevention function cannot be performed.

Moreover, since the mis-insertion prevention protrusion 101 needs to be arranged in the groove 11 not in contact with the memory card 10 behind the contact 102 in contact with the conductive sheet 12a, it cannot obtain a sufficient thickness for its insertion direction. Since the strength is low, the memory card 10 inserted in an incorrect posture abuts against it and is easily damaged.

In addition, it is necessary to form the fine protrusions 101 with high precision on the inner surface of the case constituting the card housing portion 103, and the mold structure for manufacturing the case becomes complicated, requiring strict manufacturing accuracy.

Contents of the invention

The present invention has been made in consideration of such conventional problems, and an object of the present invention is to provide a connector for a memory card that can reliably prevent insertion of a memory card in a wrong posture with a simple structure without processing the case.

In order to achieve the above object, the memory card connector according to the first aspect of the present invention includes: a housing in which a plurality of contact pieces are installed insulated from each other; When a memory card with an inclined surface for preventing mis-insertion formed between the front side and one side in the insertion direction is stored in the card storage section , the above-mentioned contacts are in contact with a plurality of conductive parts exposed in front of the memory card. The most important feature of the above-mentioned memory card connector is that it is integrally formed on the cover from the base end of the central side of the cover toward the insertion of the memory card. The leaf spring supported by the cantilever in the direction intersecting the direction makes at least the free end side of the leaf spring inclined downward with respect to the cover and serves as the mis-insertion preventing plate, and the rear side of the mis-inserting preventing plate is aligned with the insertion direction of the memory card. The ground faces the inside of the card storage section and crosses the moving track of the inclined surface of the memory card inserted into the card storage section.

The inclined surface of the memory card inserted into the card storage portion in the normal posture abuts against the lower surface of the rear side of the wrong insertion prevention plate that crosses the movement track of the inclined surface. Since the rear side of the misinsertion prevention plate faces the card storage section in a direction perpendicular to the insertion direction of the memory card, as the memory card is inserted forward, the contact position with the memory card moves toward the free end side, and the error occurs. The entirety of the insertion preventing plate portion is guided to retreat upward from the card storage portion, and the memory card becomes an insertion-free state in which the memory card is further inserted forward. On the other hand, since the memory card inserted in the wrong posture is perpendicular to the insertion direction other than the inclined surface, it abuts on the rear side surface of the wrong insertion prevention plate part substantially parallel to it, so the contact position of the wrong insertion prevention plate part does not move. , does not withdraw from the card storage section, so further forward insertion of the memory card is restricted.

In addition, a second aspect of the present invention is characterized in that the cover is formed of a conductive metal plate, the cover is notched into a substantially U-shape, and a plate spring is formed by cutting and rising from a part of the cover.

A cantilever-supported plate spring is formed inside the cover made of a conductive metal plate by notching it into a substantially U-shape in a direction intersecting the insertion direction of the memory card. The wrong insertion prevention plate is formed only by bending the free end side of the plate spring intersecting the movement locus of the inclined surface in the vertical direction downward so as to face the inside of the card storage part.

In addition, a third aspect of the present invention is characterized in that the front end of the erroneous insertion prevention plate protrudes rearward from the rear side of the base end side.

Since the erroneous insertion prevention plate portion is inclined downward with respect to the cover, the rear side surface of the front end thereof protrudes lowermost and rearward than the base end side. Even if a memory card with a curved surface on the front side of the insertion direction is inserted in a wrong posture, the rear side of the front end first comes into contact with the front side below the curved surface, and the insertion is restricted by the mis-insertion prevention plate that is not guided upward. . And when inserting the memory card that inserts with normal posture, then the middle of the rear side surface of the wrong insertion preventing plate portion abuts against the inclined surface of the memory card at first, and the abutting position moves to the free end side, thereby the wrong insertion preventing plate portion body The memory card is retracted upward from the card storage portion, and the memory card is in a state where it can be inserted further forward.

In addition, a fourth aspect of the present invention is characterized in that the upper surface of the plate spring is formed such that its width becomes wider from the free end toward the proximal end.

The memory card inserted in the front abuts against the rear side, and the largest bending moment occurs at the base end of the leaf spring supported by the cantilever. However, since the section modulus increases toward the base end, it is difficult for the leaf spring to bend in the direction of insertion. damaged.

In addition, a fifth aspect of the present invention is characterized in that a downwardly inclined guide surface is formed between the rear side surface and the lower surface of the wrong insertion preventing plate portion.

Since the inclined surface of the memory card inserted in the normal posture abuts against the downwardly inclined guide surface, the incorrect insertion prevention plate is guided to retract upward. The front side in the insertion direction of the memory card inserted in a wrong posture abuts against the rear side parallel to the vertical direction, but does not abut against the guide surface, so the wrong insertion prevention plate is not guided upward.

The effects of the present invention are as follows.

According to the first aspect of the present invention, the cover is formed with a simple structure in which the free end side faces the card storage portion in a direction intersecting with the insertion direction of the memory card, and it is possible to reliably eliminate errors. Posture inserts the memory card into the card holder.

In addition, since the plate spring having the wrong insertion prevention plate part is formed on the cover, it can be used together with the wrong insertion prevention protrusion frame part formed on the conventional housing side, and it is possible to more reliably prevent wrong posture insertion.

According to the second aspect of the present invention, it is possible to form the leaf spring piece having the wrong insertion preventing plate portion from the cover forming the card housing portion without using new components.

Since the plate spring cut and raised from the cover has a large modulus of section in the direction in which the memory card abuts against the rear side, no large bending stress is generated in the insertion direction of the memory card and is less likely to be damaged.

The wrong insertion prevention plate can be formed from the shield contacts and/or the cover of the memory card only by simple press working.

According to the third aspect of the present invention, even if the curved surface is formed on the upper and lower sides of the front surface in the insertion direction of the memory card, the vertical flat surface of the front surface of the memory card inserted in a wrong posture abuts against the rear side of the wrong insertion prevention plate portion, and the memory card is reliably inserted. restrict its insertion.

According to the fourth aspect of the present invention, the leaf spring is not elastically deformed, and it is possible to restrict insertion of a memory card inserted in an incorrect posture.

According to the fifth aspect of the present invention, the inclined surface of the memory card inserted in the normal posture abuts against the guide surface, and the wrong insertion preventing plate portion is more reliably retracted from the card storage portion.

Description of drawings

FIG. 1 is a perspective view of a state in which a memory card 10 is inserted into a memory card connector 1 according to an embodiment of the present invention in a normal posture, viewed obliquely from above.

FIG. 2 is an exploded perspective view of the casing 2 and the cover 3 .

In Fig. 3, figure (a) is a top view of cover 3, figure (b) is a perspective view showing the main part of leaf spring 4, and figure (c) is a cross-sectional view along line A-A of figure (b).

In FIG. 4 , (a) is a view of the state where the memory card 10 is inserted into the memory card connector 1 in a normal posture and the cover 3 is indicated by dotted lines as viewed obliquely from above, and (b) is a perspective view of main parts.

Among Fig. 5, figure (a) is the main part plan view of the state that memory card 10 is inserted into memory card connector 1 with normal posture, figure (b) is the longitudinal sectional view that cuts along leaf spring 4, figure (c) is Figure (a) B-B line sectional view.

In Fig. 6, figure (a) is a main part plan view of the state where the memory card 10 is inserted into the memory card connector 1 in an incorrect posture, figure (b) is a longitudinal sectional view cut along the plate spring 4, and figure (c) It is a cross-sectional view of line C-C in figure (a).

FIG. 7 is a perspective view of main parts showing a state in which the memory card 10 is inserted into the memory card connector 1 in an incorrect posture with the cover 3 indicated by dotted lines.

FIG. 8 is a bottom view of the memory card 10 .

FIG. 9 is a perspective view showing a state where the memory card 10 is inserted into the previous memory card connector 100 .

FIG. 10 is a longitudinal sectional view showing a state where the memory card 10 is inserted into the previous memory card connector 100 in a normal posture.

FIG. 11 is a longitudinal sectional view showing a state before the memory card 10 is wrongly inserted into the memory card connector 100 .

In the picture:

1-Memory card connector, 2-Case, 3-Cover (metal cover), 4-Plate spring, 5-Contact, 6-Card receiving part, 8-Incorrect insertion prevention plate, 8a-Rear Side, 8c-guiding surface, 10-memory card, 10a-inclined surface.

Detailed ways

Next, a memory card connector 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 8 . For the description of the connector 1 for a memory card, the cover 3 side in FIG. to explain. As shown in FIG. 2 , the memory card connector 1 includes: a housing 2 having a U-shaped frame portion along the periphery except the rear and forming a concave portion inside; The conductive metal cover 3 assembled on the upper surface, the metal cover 3 covers the concave part of the housing 2 from above, thereby forming a card storage part 6 for storing the memory card 10 therebetween.

The case 2 is molded from an insulating synthetic resin, and when the case 2 is molded, a plurality of contacts 5 are integrally mounted by insert molding 6 along the front-rear direction on the side near the front of the case 2 . The rear contact portion of each contact 5 protrudes into the card storage portion 6 and contacts the conductive piece 12 of the memory card 10 inserted into the card storage portion 6 in a normal posture. As shown in FIG. 7 , among the contacts 5 , the contact 5 a that is in contact with the conductive sheet 12 a exposed behind the inclined surface 10 a of the memory card 10 is installed slightly behind the other contacts 5 so that its contact portion faces Inside the card housing portion 6 , the periphery including the rear thereof is surrounded by an incorrect insertion preventing frame portion 7 . The wrong-insertion preventing frame portion 7 has the same function as the above-mentioned conventional wrong-inserting preventing protrusion 10 , so its height is 0.5 mm or less so that it can pass through the groove 11 of the memory card 10 without interference.

Between the left and right frame parts of the housing 2, a discharge plate 13 that is slidable forward and backward at the contact part of the contact 5 is bridged. force, and is rotatably connected with a connecting rod whose front end cooperates with a heart-shaped cam groove formed in the right frame portion in front of it, thereby forming a well-known push-and-pull push-out mechanism. That is to say, the memory card 10 inserted in the normal posture abuts against the ejection plate 13, and if it is further inserted forward against the compression spring 14, the connecting rod cooperates with the locking position of the heart-shaped cam groove, and the ejection plate 13 is positioned at the locking position. , the memory card 10 can be held even if the insertion force is released in a state where the memory card 10 is connected to the contacts 5 . Then, when the memory card 10 is further pushed in from this state, the link is released from the locked position of the heart-shaped cam groove, and the memory card 10 is ejected from the card storage portion 6 by the ejection plate 13 biased by the compression spring 14 .

Between the left and right frame parts of the housing 2, a shutter 15 is rotatably bridged in the vicinity of the opening of the card storage part 6 at the rear. The opening and closing plate 15 covers the vicinity of the opening of the card storage portion 6 where the memory card 10 is not stored, and prevents dust from entering the card storage portion 6 . In addition, the structure of the engaging portion 15a of the opening and closing plate 15 is as follows: the engaging portion 15a is in a state covering the vicinity of the opening of the card storage portion 6, and a pair of V-shaped detection pieces are formed at positions separated left and right on the metal cover 3 side. 16, 16 cooperation, when the memory card 10 is inserted from an oblique direction other than the insertion direction in the front-rear direction, the cooperation with the V-shaped detection piece 16 on one side is not released and the rotation is restricted, thereby restricting the memory card 10 in the direction other than the front-rear direction. Insert into the card storage part 6.

In addition, the height h of the engaging portion 15 a of the opening and closing plate 15 from the inner bottom surface of the card housing portion 6 is slightly lower than the predetermined thickness of the memory card 10 connected to the memory card connector 1 . Thus, even if a memory card that is thinner than the height of the mating portion 15a is inserted into the card storage portion 6, the pair of V-shaped detection pieces 16, 16 cannot be pushed up to release the engagement with the opening and closing plate 15, and the direction of movement is limited. Insertion of the card holder 6.

As shown in FIG. 2 , the metal cover 3 is formed by bending the left and right sides of a rectangular conductive metal plate so as to surround the left and right frame parts of the housing 2 from the outside and is installed to cover the recess of the housing 2 . In addition to forming the above-mentioned V-shaped detection piece 16 with a side cut and standing upright, on a plane slightly behind the contact 5a mounted on the housing 2, the plane is cut toward the right in a roughly U-shape, so that The inner side is integrally formed with a leaf spring 4 . Here, the substantially U-shape refers to any shape that forms an elongated strip except for the V-shape, leaving one side on the proximal end side.

As shown in Fig. 3 (a) and Fig. (b), the leaf spring 4 is integrally cantilevered to the right with the central side of the metal cover 3 plane as the base end 4a, and the rear side 4b viewed from the vertical direction It is parallel to the left-right direction and perpendicular to the insertion direction of the memory card 10 . On the other hand, the front side 4c is inclined toward the right and rearward, whereby the front-back width of the plate spring 4 becomes wider (too wide) from the free end toward the proximal end side, and the vertical direction is neutralized. The section modulus of the shaft increases towards the base end 4a. As will be described later, the wrong insertion prevention plate 8 on the free end side of the plate spring 4 is subjected to a forward insertion force from the memory card 10, and the maximum bending moment is generated at the base end 4a, but due to the cross section of the base end 4a It has the largest coefficient and can reduce the bending stress, so it is difficult to plastically deform even when a strong insertion force is applied.

In addition, the leaf spring piece 4 is bent obliquely downward near the center, and its free end side becomes the wrong insertion preventing plate portion 8 facing the inside of the card housing portion 6 . As shown in Figures (a) and (b) of Figure 4, the wrong insertion prevention plate 8 moves in the card storage part 6 across the inclined surface 10a of the memory card 10 inserted to the front in a normal posture. The way of the track faces in the card housing portion 6, thus, as shown in Fig. 5 (a), Fig. (b), Fig. (c), the upper end of the inclined surface 10a of the memory card 10 that inserts with normal posture It abuts against the lower end of the rear side surface 8 a of the wrong insertion preventing plate portion 8 .

The free end of the wrong-insertion prevention plate 8 bent obliquely downward at the base end faces into the card storage part 6 at the lowest position, and at least the distance between the free end and the inner bottom surface of the card storage part 6 The interval is equal to or less than the height h of the engaging portion 15 a of the opening and closing plate 15 . As a result, the memory card 10 inserted by rotating the opening and closing plate 15 reliably abuts against the wrong insertion prevention plate portion 8 regardless of the insertion posture.

In addition, as shown in FIG. 6 (a) and (b), the rear side surface 8d of the free end of the wrong insertion preventing plate portion 8 is formed to protrude rearward than the rear side surface 8a on the base end side thereof. Therefore, as shown in FIG. 6(c), even if the upper part of the front of the memory card 10 inserted in a wrong posture is a curved surface, the lowermost rear side 8d abuts against the flat front of the memory card 10, and the memory card 10 does not The wrong insertion preventing plate 8 may get under the wrong insertion prevention plate 8 by mistake, and the wrong insertion preventing plate 8 may retreat upward.

As shown in Figure (c) in Figure 3, in this embodiment, since the guide surface 8c that faces rearward and downward along the boundary between the rear side surface 8a and the lower surface 8b of the misinsertion prevention plate portion 8 is formed, the slope of the inclined surface 10a The upper part is in reliable contact with the inclined surface 8c of the lower part of the rear side surface 8a.

In the memory card connector 1 configured in this way, first, as shown in FIG. 1 , a case where the memory card 10 is inserted into the card storage portion 6 in a normal posture with the inclined surface 10a at the front right corner will be described. Even with the memory card 10 inserted in the normal posture, when the insertion direction is inclined relative to the predetermined insertion direction, that is, the front-rear direction, and/or when a thin memory card below a predetermined height is inserted with respect to the height of the card housing portion 6, due to At least one side of a pair of V-shaped detection pieces 16, 16 will not be pushed up due to the inserted memory card, and the cooperation with the opening and closing plate 15 will not be released, so the opening and closing plate 15 can cover the card storage part 6 The state of the opening does not rotate. That is, the memory card 10 in the normal posture is inserted in front of the card housing portion 6 approximately along the front-back direction.

As shown in Figure (a) and Figure (b) in Figure 4, when the memory card 10 is inserted to the abutment position with the misinsertion prevention plate portion 8, the misinsertion prevention plate portion 8 will cross the right front corner The inclined surface 10a of the portion faces the inside of the card housing portion 6, so the height from the inner bottom surface is located at the middle position of the lower portion (guide surface 8c) of the wrong insertion preventing plate portion 8 at the same height as the memory card 10. Abut. As shown in Figures (a), Figures (b) and Figures (c) in Figure 5, the wrong insertion preventing plate portion 8 is inclined downward to the right (leftward in Figure (b) in Figure 5 ), The inclined surface 10a is inclined toward the right and rearward, so as the memory card 10 moves forward, the abutting position moves to the free end side (rightward) along the guide surface 8c of the wrong insertion preventing plate portion 8 . On the other hand, since the height of the inclined surface 10a abutting against the wrong insertion prevention plate portion 8 is constant from the inner bottom surface, the height of the abutting position does not change, and the wrong insertion prevention plate portion 8 moves from the card receiving portion 6 to the bottom surface. The top of the backoff is pushed up.

Therefore, it is possible to insert the memory card 10 further forward under the wrong insertion preventing plate portion 8 . At this time, since the wrong insertion prevention frame portion 7 is provided at a position not to interfere with the inclined surface 10a of the memory card 10 inserted forward in a normal posture, the memory card 10 is inserted into each conductive portion through the groove 11 of the memory card 10. The connection position where the sheet 12 is in contact with the contact 5. In this state, even if the forward insertion force is removed, the memory card is held at the connected position by the above-mentioned push-push ejection mechanism.

When the memory card 10 is ejected from the card housing portion 6, if the memory card 10 is further pushed from the connection position, the memory card 10 is ejected from the card housing portion 6 by the ejection plate 13 biased backward by the compression spring 14. . Since the wrong insertion prevention plate portion 8 and one side of the V-shaped detection piece 16 are respectively made of elastic pieces, since the memory card 10 is ejected, it is reset to the position before insertion, that is, the position facing the card housing portion 6, and one side The V-shaped detection pieces 16 are matched with the matching portions 15a of the opening and closing plate 15 respectively.

Next, a case where the memory card 10 is inserted into the card storage portion 6 of the memory card connector 1 in an incorrect posture upside down or with the inclined surface 10a behind will be described. Even the memory card 10 in such an incorrect posture has the same thickness, so if it is inserted in the front-rear direction, the engagement of the opening-closing plate 15 is released, and it can be inserted forward of the card storage portion 6 .

The memory card 10 in an incorrect posture inserted forward by rotating the opening and closing plate 15 has no inclined surface 10a at the portion abutting on the incorrect insertion preventing plate portion 8, and has a flat vertical surface 10b curved upward and continuous with the upper surface. On the other hand, in the mis-insertion prevention plate portion 8 facing the card housing portion 6, since the rear side surface 8d of the free end protrudes to the rearmost side, as shown in Fig. 6 (a), Fig. (b), Fig. As shown in (c), the lowermost free end of the wrong insertion preventing plate portion 8 is in contact with the flat vertical surface 10 b of the memory card 10 . Therefore, the curved surface above the vertical surface 10b abuts against the lower portion of the base end side of the wrong insertion preventing plate portion 8, so that the wrong insertion preventing plate portion 8 is not pushed upward.

Since the vertical surface 10b of the memory card 10 abutting against the free end of the misinsertion preventing plate portion 8 is a flat surface perpendicular to the insertion direction, the abutting position does not move, and the misinserting preventing plate portion 8 cannot be retracted from the card. The part 6 retracts upward. Therefore, further forward insertion of the memory card 10 in an erroneous posture is restricted by the erroneous insertion preventing plate portion 8 , and cannot be inserted to the connection position where each conductive sheet 12 contacts the contact 5 .

Before and after abutting against the wrong insertion prevention plate part 8, since the memory card 10 to be inserted forward does not have an inclined surface 10a at the position of the wrong insertion prevention frame part 7, as shown in FIG. butt, whose insertion is restricted. That is, as shown in the figure, insertion of the memory card 10 inserted in a wrong posture to the connection position is restricted by either or both of the wrong insertion preventing plate portion 8 and the wrong insertion preventing frame portion 7 . Since the memory card 10 inserted at this position has not reached the connection position, when the insertion force is released, the ejection plate 13 biased rearward by the compression spring 14 is ejected from the card storage portion 6 . Since the wrong insertion preventing plate portion 8 and one side of the V-shaped detection piece 16 are respectively made of elastic pieces, since the memory card 10 is ejected, it returns to the original position before insertion, that is, the position facing the card housing portion 6, and one side The V-shaped detection pieces 16 are matched with the matching portions 15a of the opening and closing plate 15 respectively.

In this embodiment, the wrong insertion prevention frame part 7 also restricts the insertion of the memory card 10, but it does not necessarily have to be provided if it can be restricted only by the wrong insertion prevention plate part 8.

In addition, although the rear side 8d of the free end of the wrong insertion prevention plate portion 8 protrudes to the rearmost, if the memory card is a plate-shaped memory card that does not form a curved surface above the memory card inserted in a wrong posture, then it is also possible. The rear side surface 8a of the wrong insertion preventing plate portion 8 is formed as a plane perpendicular to the insertion direction up to the free end.

In addition, in this embodiment, the insertion posture of the memory card 10 in which the conductive sheet 12 is exposed in front of the lower surface side is described as a normal posture, but the insertion posture of the memory card 10 in which the front and back are inserted may be taken as the normal posture. normal posture. In this case, since the inclined surface 10a is the left front corner, the leaf spring piece 4 is cantilevered from the center of the cover 3 toward the left.

Industrial availability

The present invention is applicable to a memory card connector for connecting a memory card to an electronic device such as a mobile phone.

Claims (5)

1. A connector for a memory card, comprising: a housing in which a plurality of contacts are insulated from each other; The card holder for the memory card inserted facing the front, When a memory card having an inclined surface for preventing mis-insertion is formed between the front side in the insertion direction and a side surface is stored in the card storage part, each of the above-mentioned contacts contacts a plurality of conductive parts exposed at the front of the memory card, The memory card connector described above is characterized in that The cover is integrally formed with a leaf spring supported by a cantilever from a base end on the central side of the cover toward a direction intersecting the direction in which the memory card is inserted. At least the free end side of the plate spring is inclined downward relative to the cover and serves as a wrong insertion preventing plate portion, The rear side of the mis-insertion prevention plate is perpendicular to the insertion direction of the memory card and faces into the card storage part, and traverses the moving track of the inclined surface of the memory card inserted into the card storage part. 2. The memory card connector according to claim 1, wherein: The cover is formed from a conductive metal plate, The cover is notched into a substantially U-shape, and a part of the cover is cut and erected to form a leaf spring. 3. The memory card connector according to claim 1 or 2, wherein: The rear side of the free end of the wrong insertion prevention plate protrudes rearward than the rear side of the base end side. 4. The memory card connector according to claim 1 or 2, wherein: The upper surface of the plate spring is formed such that its width becomes wider from the free end toward the base end. 5. The memory card connector according to claim 1 or 2, wherein: A downwardly inclined guide surface is formed between the rear side surface and the lower surface of the wrong insertion preventing plate portion.

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