JP2010212122A - Connector for memory card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a memory card capable of sure extraction even if a comparatively downsized memory card is inserted by error into a card housing recess part designed to house the comparatively large-sized memory card in the connector for the memory card in which connection is made when the relatively large-sized memory card of the length l1, the width w1, and the thickness t1 and the comparatively downsized memory card of the length l2, the width w2, and the thickness t2 of two kinds of memory cards having a relation of l1>l2, l2≥w1>w2, t1≥t2 are inserted into the card housing recess part corresponding to the housing body respectively from the same direction. <P>SOLUTION: The card housing recess part into which the comparatively large-sized memory card is inserted is formed in a contour of a horizontally long rectangle to house the comparatively large-sized memory card along a direction of the width w1, and even if the comparatively downsized memory card is inserted by error, since it is longer than the depth of the card housing recess part, and not fully inserted, it is extracted surely from the card housing recess part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a memory card connector mounted on a portable electronic device such as a mobile phone or a digital camera, and more particularly to a memory card connector for inserting and connecting two types of memory cards from the same direction. is there.

  2. Description of the Related Art In recent years, portable electronic devices such as mobile phones, game machines, and digital cameras store information management memory cards that store personal information of users and various types of information such as images captured by cameras. As a connector mounted on a portable electronic device, a memory card connector capable of simultaneously connecting two types of memory cards is known.

  In this memory card connector, in order to insert two types of memory cards, two independent card receiving recesses are formed in the housing body, but the mounting area on the printed wiring board side on which the connector is mounted does not increase. As described above, there is known a memory card connector in which two types of card receiving recesses parallel to the mounting surface of the printed wiring board are divided into two upper and lower stages of the housing body (Patent Document 1).

  In the memory card connector described in Patent Document 1, the openings of the card receiving recesses divided into two upper and lower stages are respectively opened on the orthogonal side surfaces of the housing body, and the two types of memory cards are arranged in directions orthogonal to each other. It is a connector for memory cards that can be inserted and connected at right angles.

  On the other hand, a memory card connector of the same direction insertion type is also known in which two types of card receiving recesses are opened on one side of the housing body so that two types of memory cards can be inserted from one direction of the portable electronic device. .

  This same direction insertion type memory card connector has two types of memory cards, a solid state floppy disk card (hereinafter referred to as a smart media card) and an SD (Secure Digital) card. Because the thickness of the relatively large smart media card is smaller than that of the relatively small SD card, the small SD card is inserted into the card housing recess where the smart media card is inserted. In addition, the smart media card cannot be inserted into the card receiving recess for inserting the SD card having the narrow opening width.

  Therefore, even if two types of card receiving recess openings are opened on the same surface of the housing body, the other side memory card is not erroneously inserted.

JP 2005-173943 A

  Conventional memory card connectors of right-angle insertion type have a complicated structure to allow two types of memory cards to be inserted from two orthogonal directions into a portable electronic device equipped with the connector. However, there was a problem that it was not easy to use because it was necessary to find an opening for inserting a memory card for each memory card.

  In addition, the conventional connector for a memory card of the same direction insertion type can accommodate a large memory card if the thickness of two types of relatively large memory cards is thinner than a relatively small memory card. By making the opening height of the memory card smaller than the thickness of the small memory card, as described above, erroneous insertion can be prevented, but if the thickness of the large memory card is greater than the thickness of the small memory card, Incorrect insertion cannot be prevented.

  For example, a SIM (Subscriber Identity Module) card 50 shown in FIG. 10A is a memory card for information management, in which two types of memory cards are rectangular plate-like lengths l1, widths w1, and thicknesses t1. In the case of the microSD (Secure Digital) card 60 shown in FIG. 5B, which is a recording memory card having a rectangular plate-like length l2, width w2, and thickness t2, The relations are l1> l2, l2 ≧ w1> w2, and t1 ≧ t2.

  Accordingly, the opening of the SIM card receiving recess for storing the SIM card 50 along its longitudinal direction has a rectangular outline slightly larger than the horizontal width w1 and the height t1, narrower than the horizontal width w1 and having a thickness of t1 or less. The microSD card 60 at t2 can be erroneously inserted into the SIM card housing recess, and the length in the insertion direction is in the relationship of l1> l2 in the SIM card housing recess whose depth is slightly shorter than the length l1. If the MicroSD card 60 is completely misinserted, there arises a problem that it cannot be taken out from the SIM card housing recess.

  Accordingly, a connector for a memory card of the same direction insertion type is desired from the structure and usability of the portable electronic device. However, the two types of memory cards applicable to the connector for a memory card of the same direction insertion type are limited. It was done.

  The present invention has been made in view of such conventional problems, and is a memory card connector that allows two types of memory cards to be inserted from the same direction. An object of the present invention is to provide a memory card connector that can be reliably removed even if the memory card is erroneously inserted into the card receiving recess.

  In order to achieve the above-mentioned object, a memory card connector according to claim 1 is a rectangular card-like longitudinal length l1, width w1, thickness t1, and a first card housing recess for housing a first memory card. A rectangular card-shaped lengthwise length l2, width w2, and thickness t2 of a second card receiving recess for receiving a second memory card are formed in the housing body in two steps parallel to each other in the vertical direction. The first card receiving recess and the second card receiving recess are opened on the same side of the housing body, and are inserted in the same direction. The two types are large and small in relation of l1> l2, l2 ≧ w1> w2, t1 ≧ t2. A memory card connector in which a first contact facing the first receiving recess and a second contact facing the second receiving recess are electrically connected to each electrode of the first memory card and the second memory card, The one-card receiving recess is formed in a horizontally-long rectangular outline for receiving a first memory card inserted in the direction of the width w1 having a depth shorter than the width w1 from the opening of the housing body. The first card receiving recess is made to face the electrode portion of the first memory card that is stored horizontally, and the depth from the opening of the housing body is shorter than the length l2 in the direction of the length l2. It is formed in the shape of a vertically long rectangle that accommodates the second memory card inserted along, and the second contact faces the electrode portion of the second memory card that is vertically accommodated in the second card accommodating recess. And

  Since the depth of the first card receiving recess from the opening of the housing main body is shorter than the width w1 of the first memory card, the first memory card stored in the first card receiving recess can be taken out, and the first card storing Even if the second memory card is accidentally inserted into the recess along the longitudinal direction, the length 12 of the second memory card in the longitudinal direction is at least longer than the depth of the first card housing recess, and the first card housing recess Can be taken out from.

  In the memory card connector according to claim 2, at least a pair of leaf spring inclined pieces that incline inward of the first card housing recess from the opening of the first card housing recess toward the depth, The pair of leaf spring inclined pieces are cantilevered in a direction intersecting from different directions with respect to the card insertion direction from the opening of the first card receiving recess to the depth. It is characterized by being supported.

  When the memory card is inserted along the card insertion direction from the opening of the first card receiving recess toward the depth, the cantilevered leaf spring inclined piece is pushed down toward the inner bottom surface or inner top surface of the base end side. Thus, the memory card is accommodated in the first card accommodating recess without any trouble. Further, when the memory card is inserted obliquely intersecting the card insertion direction of the first card receiving recess, a pair of leaf spring inclined pieces that are cantilevered in directions intersecting from different directions with respect to the card insertion direction. The tip of the memory card is in contact with the side of any of the leaf spring inclined pieces, and cannot be inserted into the first card receiving portion recess. Therefore, the second memory card that may be erroneously inserted into the first card receiving recess is inserted only when the longitudinal direction of the card and the card insertion direction of the first card receiving recess are substantially aligned. The card can be inserted into the one-card housing part, and a part projects from the opening of the first card-receiving recess, so that it can be reliably taken out.

  Further, the first memory card correctly received in the first card receiving recess is urged toward the opposing inner top surface or inner bottom by the pair of leaf spring inclined pieces, so that the first card storing recess in the first cart receiving recess Contained without rattling.

  When the first contact is disposed on the inner bottom surface or the inner top surface where the pair of leaf spring inclined pieces are formed, each electrode of the first memory card has a pair of leaf spring inclined surfaces. The piece is biased toward the first contact, and a predetermined contact pressure is obtained between the electrode and the contact, and both are reliably electrically connected.

  According to a third aspect of the present invention, there is provided the memory card connector, wherein the first card receiving recess includes a recess surrounded by the U-shaped protrusion of the insulating plate, and a metal cover attached to the insulating plate so as to cover the recess. A pair of leaf spring inclined pieces is formed between the strip-shaped piece cut out from the metal plate leaving the base end of one side of the elongated strip in the short direction, and is bent obliquely toward the recess at the base end, It is cantilevered by a metal cover.

  The pair of leaf spring inclined pieces are formed by a simple process using only a pressing process of cutting out from the metal cover using the metal cover forming the first card receiving recess.

  The memory card connector according to claim 4 is characterized in that a concave groove along the vertical direction is formed in the inner back surface of the first card receiving recess.

  When the memory card is inserted obliquely intersecting the card insertion direction of the first card receiving recess, the front end side corner of the memory card is engaged with the concave groove on the inner back surface, and the side surface of the memory card is the first side. In contact with the inner side surface of the card receiving recess and in an oblique posture, it cannot be inserted into the first card receiving recess. Therefore, the second memory card that may be erroneously inserted into the first card receiving recess is inserted only when the longitudinal direction of the card and the card insertion direction of the first card receiving recess are substantially aligned. It can be inserted into one card storage part, and a part protrudes from the opening of the first card storage recess and can be reliably removed.

  The memory card connector according to claim 5 is characterized in that the first memory card is a SIM card and the second memory card is a microSD card.

  The rectangular plate-shaped SIM card having a longitudinal length l1, width w1, and thickness t1 and the rectangular plate-shaped microSD card having a longitudinal length l2, width w2, and thickness t2 are l1> l2, l2. ≧ w1> w2 and t1 ≧ t2, and the microSD card inserted in the longitudinal direction can be reliably removed even if it is erroneously inserted into the first card housing recess for housing the SIM card.

  According to the first aspect of the present invention, there is provided a memory card connector into which two types of memory cards are inserted from the same direction, wherein the first card receiving recess for receiving a relatively large first memory card has a relatively small first size. Even if the two memory cards can be erroneously inserted, one side in the longitudinal direction of the second memory card protrudes from the opening of the first card receiving recess, so that it can be always taken out.

  According to the second aspect of the present invention, since the second memory card cannot be inserted obliquely into the first card housing recess, a part of the second memory card protrudes from the opening of the first card housing recess and can be reliably removed. .

  Also, the first memory card correctly received in the first card receiving recess is received without rattling in the first cart receiving recess, and the first contact is an inner bottom surface on which a pair of leaf spring inclined pieces are formed. Alternatively, in the case of being disposed on the opposing surface of the inner top surface, the first contact facing each electrode of the first memory card is reliably electrically connected with a predetermined contact pressure.

  According to invention of Claim 3, a pair of leaf | plate spring inclination piece can be formed by simple process using the metal cover which forms a 1st card accommodation recessed part.

  Further, since the first memory card accommodated in the first card accommodating recess is biased in the direction of the recess of the insulating plate by the leaf spring inclined piece, each electrode of the first memory card faces the recess of the insulating plate. The first contact is securely connected with a predetermined contact pressure.

  According to the invention of claim 4, since the second memory card cannot be inserted into the first card receiving recess obliquely, a part of the second memory card protrudes from the opening of the first card receiving recess and can be reliably taken out. .

  According to the invention of claim 5, since the microSD card is guided to be inserted in the longitudinal direction of the card depending on the outer shape and the position of the electrode, the microSD card is inserted along the short direction into the first card receiving recess. Even if it is accidentally inserted into the first card housing recess for housing the SIM card, it can be reliably removed.

1 is a perspective view showing a state in which a SIM card 50 and a microSD card 60 are connected to a memory card connector 1 according to an embodiment of the present invention. 3 is a perspective view of a metal cover 5. FIG. FIG. 6 is a perspective view of an insulating plate 2 in which six L-shaped contacts 3 and eight strip-like contacts 4 are cantilevered. 3 is a longitudinal sectional view of the memory card connector 1 cut along a direction orthogonal to the card insertion direction of the SIM card 50. FIG. It is a cross-sectional view of the lower card housing recess 7. It is a principal part perspective view of the lower card accommodation recessed part. It is a perspective view which shows the state which inserted microSD card 60 in the lower card accommodation recessed part 7 diagonally. FIG. 4 is a perspective view of the memory card connector 1 showing a state in which the microSD card 60 is erroneously inserted along the card insertion direction into the lower card housing recess 7. It is a cross-sectional view showing a state in which the microSD card 60 is inserted obliquely into the lower card housing recess 31 of the memory card connector 30 according to the second embodiment. Two types of memory cards are shown. (A) is a plan view of the SIM card 50 and (b) is a plan view of the microSD card 60. FIG.

  A memory card connector 1 according to an embodiment of the present invention will be described below with reference to FIGS. In the description of the present embodiment, each part of the memory card connector 1 will be described with the respective directions shown in FIG. 4 being the vertical and horizontal directions, the depth direction orthogonal to the paper surface of FIG. 4 being the rear, and the front direction being the front. .

  Two types of memory cards to be inserted and connected to the memory card connector 1 are the above-described SIM card 50 and microSD card 60. As shown in FIG. 10A, the SIM card 50 has a length in the longitudinal direction. The microSD card 60 is a rectangular plate having a length l2, a width w2, and a thickness t2, as shown in FIG. Memory card. Both are in the relationship of l1> l2, l2 ≧ w1> w2, t1 ≧ t2, and the memory card connector 1 includes a relatively large SIM card 50 and a relatively small microSD card 60, as shown in FIG. Can be inserted in the same direction from the front to the rear.

  The memory card connector 1 includes an insulating plate 2, six L-shaped contacts 3 and eight strip-shaped contacts 4 that are cantilevered on the insulating plate 2, a pair of switch contacts 10, and an insulating plate 2. It consists of a metal cover 5 covering the periphery.

  The insulating plate 2 is formed of an insulating plastic in the shape of a rectangular thin plate. The upper surface of the insulating plate 2 encloses two sides in the longitudinal direction and one side in the short direction of the MicroSD card 60, and the SIM card on the lower surface. Two side surfaces 50 in the short direction and a lower frame portion 2b surrounding one side surface in the longitudinal direction are integrally formed in a U-shape that opens forward. The housing body of the memory card connector 1 is formed into a rectangular tube shape as shown in FIG. 2 so as to cover the insulating plate 2 formed in this way and the periphery excluding the front and rear surfaces of the rectangular thin plate-like insulating plate 2. It is comprised from the metal cover 5 made.

  The metal cover 5 is mounted from the front of the insulating plate 2, and is a cut-and-raised piece 5b cut and raised inward from the left and right side surfaces at a position where the stopper piece 5a bent along the front surface comes into contact with the front surface of the insulating plate 2. Is fitted into the concave grooves on both side surfaces of the insulating plate 2 and fixed to the insulating plate 2. By fixing the metal cover 5 to the insulating plate 2, the upper card accommodating recess 6 for accommodating the MicroSD card 60 between the upper surface of the insulating plate 2 surrounded by the upper frame portion 2a and the metal cover 5 is formed in the lower frame portion 2b. A lower card receiving recess 7 for receiving the SIM card 50 is formed between the lower surface of the insulating plate 2 surrounded by the metal plate 5 and the metal cover 5 in two upper and lower stages through the insulating plate 2.

  The lower surface of the metal cover 5 serves as the inner bottom surface of the lower card receiving recess 7, and as shown in FIG. In the intersecting direction, four leaf spring inclined pieces 5c and 5d are cut and raised upward. Of these, the two leaf spring inclined pieces 5c are cut out from the lower surface of the metal cover 5 in the shape of an elongated U toward the left rear, leaving one side on the front, and obliquely upward with the one side on the front as a base. It is formed by bending it. Further, the remaining two leaf spring inclined pieces 5d are also cut out from the lower surface of the metal cover 5 in the shape of an elongated U toward the rear right side, leaving one front side, and obliquely upward with the front side as the base end. It is formed by bending it. Accordingly, the four leaf spring inclined pieces 5c and 5d are all inclined toward the inside of the lower card accommodating recess 7 toward the rear, and one set of the leaf spring inclined pieces 5c and 5d is formed in the front-rear direction. Each of the metal covers 5 is cantilevered so as to cross the card insertion directions from different directions.

  The lower card accommodation recess 7 formed between the metal cover 5 and the insulating plate 2 accommodates the SIM card 50 inserted along the short direction from the front, so that the width and height are 11 and t1, respectively. It opens forward with a slightly long lateral profile, and the depth from the opening to the inner back surface is shorter than the width w1 of the SIM card 50.

  Each of the six L-shaped contacts 3 is made of phosphor bronze, with a convex contact portion 3a that is wide and has a projecting curved bottom surface, and an L-shaped leg portion 3b that is drawn backward from the left side of the convex contact portion 3a. It is formed by punching a conductive thin metal plate in the vertical direction. As shown in FIG. 3, first contact receiving holes 2 c having a rectangular outline are formed in two rows along the front-rear direction on the left side avoiding the upper card receiving recess 6 of the insulating plate 2. Each of the six L-shaped contacts 3 that are insulated from each other and cantilevered by the insulating plate 2 has a convex contact portion 3a to the right from the middle of the leg portion 3b in each first contact receiving hole 2c. It protrudes.

  The cantilevered leg 3b and the convex contact portion 3a on the free end thereof are prestressed so as to incline downward from the fixed end, and the convex contact portion 3a is positioned below the first contact receiving hole 2c. The positioning piece 3c at the tip abuts on the peripheral edge of the first contact housing hole 2c from above while being projected into the card housing recess 7, and is positioned. The front lower surface side of the convex contact portion 3a is an inclined surface that is inclined downward toward the rear. When the SIM card 50 inserted rearward comes into contact with the convex contact portion 3a, the leg portion 3b is bent, and the upper Retreat into the one-contact receiving hole 2c. As shown in FIG. 10 (a), the six electrodes 51 of the SIM card 50 are distributed and exposed in a matrix of 3 rows and 2 columns toward the front of the upper surface, and the convex contact portions of each L-shaped contact 3 are exposed. 3a protrudes in the lower card accommodation recessed part 7 corresponding to the exposure position of each electrode 51 of the SIM card 50 accommodated horizontally long.

  The upper card accommodating recess 6 formed between the upper surface of the metal cover 5 and the insulating plate 2 accommodates the MicroSD card 60 inserted along the longitudinal direction from the front, so that the horizontal width and height are from w2 and t2, respectively. Each of them opens forward with a slightly long lateral profile, and the depth from the opening to the inner back surface is shorter than the length 12 of the microSD card 60 in the longitudinal direction. As shown in FIG. 10 (b), the eight electrodes 61 of the MicroSD card 60 are linearly exposed along one side on the front end side of the lower surface thereof, so that they are inserted along the longitudinal direction, and the upper card receiving recess 6 Eight elongated strip contacts 4 connected to the respective electrodes 61 of the MicroSD card 60 accommodated vertically are attached to the insulating plate 2.

  As shown in FIG. 3, each of the eight strip-shaped contacts 4 is formed in a narrow strip shape, and is supported by being inclined upward toward the rear end and a leaf spring contact portion. Like the L-shaped contact 3, the leg 4 b connected to the front of the portion 4 a and drawn backward in the U shape is formed by punching a conductive thin metal plate made of phosphor bronze in the vertical direction. The eight strip-like contacts 4 are insert-molded on the insulating plate 2 together with the L-shaped contact 3 and are cantilevered by the insulating plate 2 and are horizontally rectangular on the upper surface of the insulating plate 2 surrounded by the upper frame portion 2a. The leg 4b is cantilevered at the front edge of the second contact housing hole 2d formed by the contour, and the leaf spring contact portion 4a connected to the tip side thereof is inclined upwards toward the rear so that the upper card housing recess 6 is projected. Each leaf spring contact portion 4a protruding into the upper card receiving recess 6 is exposed in a straight line along one side of the lower surface of the MicroSD card 60 inserted into the upper card receiving recess 6 along the longitudinal direction thereof. Elastically contacts the electrode 61.

  The switch contact 10 is a pair of leaf spring pieces for detecting that the MicroSD card 60 has been inserted into the upper card accommodation recess 6, and the insulating plate 2 so that its free end can move within the upper card accommodation recess 6. Cantilevered.

  When the SIM card 50 is inserted into the lower card receiving recess 7 from the front along the short direction of the memory card connector 1 configured as described above, as shown in FIG. Since the width and the distance between the inner wall surfaces are only slightly longer than the length 11 of the SIM card 50 in the longitudinal direction, the SIM card 50 is guided in the front-rear direction along the card insertion direction of the lower card receiving recess 7. Inserted. Therefore, the SIM card 50 inserted in the front-rear direction has a slight angle with any of the four leaf spring inclined pieces 5c and 5d that are cantilevered on the inner bottom surface (the lower surface of the metal cover 5) of the lower card housing recess 7. Since the tip of the SIM card 50 rides up from the base end of each leaf spring inclined piece 5c, 5d and pushes down the leaf spring inclined pieces 5c, 5d toward the inner bottom surface of the lower card accommodating recess 7, The card is inserted to the position where it contacts the inner back surface of the card receiving recess 7. During this insertion, the SIM card 50 comes into contact with the inclined surfaces of the convex contact portions 3a of the six L-shaped contacts 3 projecting from the inner top surface side of the lower card accommodating recess 7, and each convex contact portion 3a While retracting into the first contact housing hole 2 c, the leg 3 b bends upward and makes elastic contact with the corresponding electrodes 51 of the SIM card 50.

  At this time, the four leaf spring inclined pieces 5c and 5d that are cantilevered on the inner bottom surface urge the SIM card 50 upward in the lower card accommodation recess 7 so that the SIM card 50 is in the lower card accommodation recess 7. Since each electrode 51 is urged toward each convex surface contact portion 3a side, both are more reliably electrically connected with a predetermined contact pressure.

  Further, before and after the above-described SIM card 50 is inserted, when the MicroSD card 60 is further inserted from the front along the longitudinal direction into the upper card receiving recess 6 of the memory card connector 1, the inside of the upper card receiving recess 6 The microSD card 60 comes into contact with each leaf spring contact portion 4a of the eight strip-like contacts 4 inclined upward in the rear direction, and each leaf spring contact portion 4a bends downward in the second contact housing hole 2d. However, it makes elastic contact with the corresponding electrodes 61 of the MicroSD card 60. Thereby, the SIM card 50 and the MicroSD card 60 inserted from the same direction are accommodated in two upper and lower stages, and the electrodes 51 and 61 of each card 50 and 60 are electrically connected to the corresponding contacts 3 and 4.

  On the other hand, since both the upper card housing recess 6 and the lower card housing recess 7 are opened in the front of the insulating housings 2, 5, the relatively small MicroSD card 60 is transferred to the lower card housing recess 7 for housing the SIM card 50. May be inserted incorrectly. As shown in FIG. 10 (b), the MicroSD card 60 has a contour step and a concave step portion 62 sandwiched between fingers at the rear end, so that the microSD card 60 has a front end on which the concave step portion 62 is formed and has a longitudinal direction. The card is inserted into the lower card receiving recess 7 along the direction, but when it is attempted to be inserted obliquely as shown in FIGS. The tip of the MicroSD card 60 comes into contact with the side surface of one of the pair of leaf spring inclined pieces 5c and 5d (5c in FIG. 5) with respect to the insertion direction at an angle close to a right angle. 7 can not be inserted. Accordingly, the MicroSD card 60 is accommodated in the lower card accommodation recess 7 in an oblique posture and cannot be taken out, and the operator cannot insert the MicroSD card 60 into the lower card accommodation recess 7 by mistake. Can be recognized and inserted into the correct upper card receiving recess 6 again.

  In addition, the MicroSD card 60 that is erroneously inserted along the card insertion direction (front-rear direction) of the lower card housing recess 7 intersects the four leaf spring inclined pieces 5c and 5d at a slight angle. The leading end of 60 rides from the base end of each leaf spring inclined piece 5c, 5d, and the cantilevered leaf spring inclined pieces 5c, 5d are directed in the direction of the inner bottom surface of the lower card accommodating recess 7 (the lower surface of the metal cover 5). While being pushed down, the tip is inserted rearward along the card insertion direction to a position where the tip abuts against the inner back surface of the lower card accommodation recess 7. Even if the tip of the MicroSD card 60 is inserted until it contacts the inner back surface of the lower card housing recess 7, the length l2 of the microSD card 60 in the longitudinal direction is in the relationship of the horizontal width w1 of the SIM card 50 and l2 ≧ w1. As shown in FIG. 8, the front end of the MicroSD card 60 remains protruding from the opening of the lower card housing recess 7 whose depth from the opening w to the inner back surface is shorter than the width w1 of the SIM card 50. It can be easily pulled out from the lower card housing recess 7.

  In the above-described embodiment, the MicroSD card 60 guides the operator to insert the microSD card 60 along the longitudinal direction from the shape thereof. The insertion recess 7 is inserted with the depth direction as the longitudinal direction, and the front end is always exposed from the opening of the lower card storage recess 7 and can be taken out. Further, in the present embodiment, by providing the four leaf spring inclined pieces 5c and 5d, the insertion of the MicroSD card 60 in an oblique posture with respect to the depth direction is prohibited, so that the MicroSD card 60 is connected to the lower card. By inserting the depth direction of the housing recess 7 as the longitudinal direction, it can be reliably removed from the lower card housing recess 7.

  As a means for prohibiting the insertion of the MicroSD card 60 in an oblique posture with respect to the depth direction of the lower card housing recess, another configuration in place of the four leaf spring inclined pieces 5c and 5d may be used. . FIG. 9 is a cross-sectional view of the memory card connector 30 according to the second embodiment of the present invention having another configuration that prohibits insertion of the MicroSD card 60 in an oblique posture.

  This memory card connector 30 has a large number of vertical grooves 32 formed at arbitrary intervals on the inner back surface 31a of the lower card receiving recess 31 for storing the SIM card 50 in a landscape orientation. As shown in the drawing, the MicroSD card 60 that is erroneously inserted into the lower card receiving recess 31 with respect to the card insertion direction (front-rear direction) has a slanted tip when the corner of the tip reaches the inner back surface 31a. Since the front end of the corner is in contact with the side wall 31b constituting the lower card accommodation recess 31, a part of the MicroSD card 60 protrudes from the opening of the lower card accommodation recess 31 and remains. Insertion is not possible in this state. As a result, the operator can notice erroneous insertion, pick a part protruding from the opening, and easily pull out the MicroSD card 60 from the lower card housing recess 31.

  The configuration in which the concave groove 32 is provided so as to prohibit the insertion of the MicroSD card 60 in an oblique posture can be used in combination with the prohibiting means using the leaf spring inclined pieces 5c and 5d according to the first embodiment. By using both in combination, the MicroSD card 60 can be inserted more reliably along the card insertion direction of the lower card housing recesses 7 and 31.

  In the above-described embodiment, the upper card housing recess 6 for housing the MicroSD card 60 and the lower card housing recess 7 for housing the SIM card 50 are formed above the insulating housing. As long as both open in the direction, the arrangement may be upside down.

  Further, the four leaf spring inclined pieces 5c and 5d are integrally formed by being cut and raised from the metal cover 5, so that they are excellent in durability and are not easily fatigued even when the memory card is repeatedly inserted and removed. However, it is not necessarily formed from a metal cover.

  Further, the two types of memory cards are not limited to the above-described SIM card 50 and MicroSD card 60, and other memory cards can be used as long as the outer shapes of the two are in the relationship of l1> l2, l2 ≧ w1> w2, and t1 ≧ t2. It may be a combination of cards.

  The present invention is suitable for a memory card connector in which two types of memory cards are inserted into different receiving recesses from the same direction.

1 Memory card connector 2 Insulation plate (housing body)
2b Lower frame part (U-shaped convex part)
3 L-shaped contact (first contact)
4 Narrow strip contact (second contact)
5 Metal cover (housing body)
5c Leaf spring inclined piece 5d Leaf spring inclined piece 6 Upper card receiving recess (second card receiving recess)
7 Lower card receiving recess (first card receiving recess)
30 Memory card connector 31 Lower card receiving recess (first card receiving recess)
31a Inner inner surface of lower card housing recess 32 Groove 50 SIM card (first memory card)
51 Electrode of the first memory card 60 SD card (second memory card)
61 Second memory card electrode

Claims (5)

A rectangular card-shaped longitudinal length l1, a width w1, a thickness t1, a first card-receiving recess, a rectangular plate-shaped longitudinal length l2, a width w2, and a thickness t2. A second card housing recess for housing the second memory card is formed in the housing main body in two steps in the vertical direction in parallel with each other;
The first card receiving recess and the second card receiving recess are opened on the same side of the housing body, and are inserted in the same direction. The first and second types are large and small in relation to l1> l2, l2 ≧ w1> w2, t1 ≧ t2. A memory card connector in which a first contact facing the first receiving recess and a second contact facing the second receiving recess are electrically connected to each electrode of the 1 memory card and the second memory card,
The first card receiving recess is formed in an oblong rectangular outline for receiving a first memory card having a depth from the opening of the housing body shorter than the width w1 and inserted along the direction of the width w1, and the first contact, While facing the electrode portion of the first memory card stored horizontally in the first card receiving recess,
The second card receiving recess is formed to have a vertically elongated rectangular shape having a depth shorter than the length l2 from the opening of the housing body and accommodating the second memory card inserted along the direction of the length l2. A connector for a memory card, wherein the connector faces the electrode portion of the second memory card that is accommodated vertically in the second card housing recess. At least a pair of leaf spring inclined pieces inclined inward from the opening of the first card receiving recess toward the inside of the first card receiving recess is a piece with the inner bottom surface or the inner top surface of the first card receiving recess as a base end. Supported,
The pair of leaf spring inclined pieces are cantilevered in directions intersecting from different directions with respect to the card insertion direction from the opening of the first card receiving recess toward the depth. Memory card connector as described. The first card receiving recess is formed between a recess surrounded by a U-shaped protrusion of the insulating plate and a metal cover attached to the insulating plate so as to cover the recess.
A pair of leaf spring slanting pieces is a strip-shaped piece cut out from the metal plate leaving the base end of one side in the short side of the elongated band, and is bent obliquely toward the recess at the base end, and cantilevered to the metal cover The memory card connector according to claim 2, wherein the memory card connector is supported. 4. The memory card connector according to claim 1, wherein a concave groove along the vertical direction is formed in the inner back surface of the first card receiving recess. 5. The memory card connector according to any one of claims 1 to 4, wherein the first memory card is a SIM card and the second memory card is a microSD card.

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