JP2014086320A - Connector for card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for a card which blocks inaccurate connections using different kinds of cards.SOLUTION: A connector 10 comprises: a housing 1 including a recess 11 to insert thereto a first card 5 with which a first connection terminal 5t is arrayed inside of a slot 5s opened on an end face; a cover plate 2 which covers the housing 1; a plurality of contacts 3 disposed in the depth of the housing 1 and covered by a header 12h which can be inserted into the slot 5s of the first card 5; and a push-push type eject mechanism 4 capable of ejecting the inserted card. A slope 41s is formed in an engaging pawl 410 of an L-shaped slide member 41 constituting the eject mechanism 4. When a second card 6 of which is smaller in outer shape and also thinner than the first card 5 is erroneously inserted, the second card 6 is abutted over the engaging pawl 410 to a front face of the header 12h, such that the connector 10 is unlikely to be brought into contact with the plurality of contacts 3.

Description

  The present invention relates to a card connector. In particular, the present invention relates to a card connector structure that prevents inaccurate connection by a different type of card when a different type of card having a different outer shape and thickness from a regular card is erroneously inserted into the connector.

  A memory card, which is a card-type storage device, employs a flash memory as a storage medium. The memory card is very small and has an advantage that it consumes little power for reading and writing data. Memory cards have the advantage of not requiring a drive device such as FD and MO for reading and writing data, so power consumption and portability are important. For example, they are widely used as recording media for digital cameras. ing.

  Recent digital cameras are capable of high-speed continuous shooting using an electronic shutter. For this reason, the high-speed continuous shooting compatible digital camera has two SD (Secure Digital) cards for normal imaging and an XQD (registered trademark) card with a high writing speed for high-speed continuous shooting that can be inserted separately. A card connector is provided. For example, these card connectors are mounted on both sides of the printed circuit board with the printed circuit board in between.

  The SD card and the XQD card have different external shapes and thicknesses. Compared to the XQD card, the SD card has a smaller outer shape and a smaller thickness. There has been disclosed a card connector capable of mounting various types of cards having different outer shapes and thicknesses to one card connector (for example, see Patent Document 1).

  In the card connector according to Patent Document 1, the housing formed by the connector main body and the cover member is vertically divided by a partition plate, so that an SD card and a Memory Stick Duo (registered trademark) card can be selectively attached. Yes. The card connector has an eject mechanism which is located on the upper stage of the housing and engages with the front end surface of the SD card, and is located on the lower stage of the housing and protrudes from the lower part of the card push part. It has an overhang | projection part contact | abutted to the front-end surface. When the SD card and Memory Stick Duo card are installed in the card connector, the overhanging part is located in front of the card push-out part (the card insertion slot) in order to match the amount of protrusion of the card rear end surface from the card connector. Protruding to the side).

  However, the card connector according to Patent Document 1 has a predetermined gap between the protruding portion and the partition plate and the housing bottom surface so that the protruding portion that contacts the front end surface of the memory stick duo card does not interfere with the partition plate and the housing bottom surface. A gap is formed. Therefore, the height of the overhanging portion is reduced, the overhanging portion abuts only a part of the front end face of the card, and the card and the overhanging portion are easily disengaged when the card is inserted or ejected. When the contact between the overhanging portion and the card is removed, the front end of the card enters the gap between the overhanging portion and the partition plate or the bottom of the housing, preventing normal insertion or ejection of the card, Or there was a concern that the card and the eject mechanism would be damaged.

  In order to solve the above-described problems, a card connector is disclosed in which the first and second cards having different sizes can be mounted, the card can be stably inserted and ejected, and the height can be reduced. (For example, refer to Patent Document 2).

  The card connector according to Patent Document 2 includes a plurality of contacts, a lock fitting that detects the width of the first card and moves from the first position to the second position, and a passage opening through which the second card can pass. At least an actuator that can rotate from a first position to a second position, a partition plate that is movable from the first position to the second position, and that distributes the first and second cards up and down; and An eject mechanism having at least a card abutting member capable of abutting against the first and second cards, wherein the card abutting member is abutted against the front end surfaces of the first and second cards, respectively. The second card pressing surface is formed on the movable metal member, and the movable metal member has the first card pressing surface when the second card pressing surface is at the first position. Formed to cover up That.

JP 2004-206963 A JP 2012-174644 A

  The card connector according to Patent Document 1 or Patent Document 2 is configured such that the cantilever contact comes into contact with a connection terminal made of a metal foil exposed at the end of the card. However, in the XQD card, connection terminals are arranged inside a slot opened on the end face. Therefore, it is difficult to share the SD card and the XQD card using the card connector structure disclosed in Patent Document 1 or Patent Document 2, and as described above, the SD card card connector and the XQD It is preferable to mount card connectors for cards on both sides of the printed circuit board.

  On the other hand, as described above, the SD card has a smaller outer shape and a smaller thickness than the XQD card, so that the SD card can be erroneously inserted into the card connector for the XQD card. Yes. In this case, there is a concern that the SD card damages the contacts arranged in the back of the card connector. There is a need for a card connector that prevents inaccurate connection by a different type of card when a different type of card having an outer shape and thickness different from that of a regular card is erroneously inserted into the connector. The above can be said to be the subject of the present invention.

  The present invention has been made in view of such problems, and when a different type of card having a different external shape and thickness from that of a regular card is erroneously inserted into the connector, incorrect connection using the different type of card is made. An object of the present invention is to provide a card connector that prevents the above-described problem.

  The inventors of the present invention have a housing having a recess into which a first card in which first connection terminals are arranged inside a slot opened in an end surface is inserted, a cover plate that covers the housing, and a rear portion of the housing, A plurality of contacts covered by a header that can be inserted into a slot of one card and a push-push type eject mechanism that can eject the inserted card constitute a card connector, and an L-shape that constitutes the eject mechanism When the second card, which is formed with an inclined surface on the engaging claw of the slide member and the outer shape is smaller and thinner than the first card, is mistakenly inserted, the second card rides on the engaging claw Then, by contacting the front surface of the header, it is found that this problem can be solved by configuring the card connector so that it is difficult to contact a plurality of contacts, and based on this, This has led to the invention a new card for the connector, such as below.

  (1) A plurality of first connection terminals are arranged inside a slot opened on one end face, and a substantially rectangular first card having a predetermined outer shape and thickness and a plurality of exposed second connection terminals are arranged. A card connector capable of inserting a substantially rectangular second card having a smaller outer shape and a smaller thickness than the first card, and a recess into which the first card or the second card is inserted and removed. A plate-shaped housing having a cover, a cover plate that covers the recess of the housing, and a header that is disposed at the back of the housing and protrudes toward the opening of the recess and is insertable into the slot of the first card. A plurality of covered contacts, and a push-push type ejection mechanism that is disposed on one wing of the recess and is capable of ejecting the first card inserted into the recess, the ejection mechanism comprising: A strip-shaped slide member that moves along one side wall of the housing, the slide member projecting from one wing side of the recess toward the center of the recess, and the first card or the second An engaging claw abutting against a leading edge of the card, the engaging claw having an inclined surface on the card abutting surface on which the second card rides when the second card is inserted into the recess; When one card is inserted into the recess, the engaging claw moves below the plurality of contacts, the first connection terminal is connected to the contact, and when the second card is inserted into the recess, the first card A card connector for preventing a second card from entering by contacting a leading edge of the two cards with a leading edge of the header.

  The card connector according to the invention of (1) includes a substantially rectangular first card having a predetermined outer shape and thickness, and a substantially rectangular second card having a smaller outer shape and a smaller thickness than the first card. , Can be inserted. The first card has a plurality of first connection terminals arranged in a slot opened in one end face. On the other hand, the second card has a plurality of exposed second connection terminals.

  The card connector according to the invention of (1) includes a plate-shaped housing and a cover plate. The housing has a recess into which the first card or the second card is inserted and removed. The cover plate covers the recess of the housing.

  The card connector according to the invention of (1) includes a plurality of contacts covered by a header and a push-push type eject mechanism. The header is disposed at the back of the housing, protrudes toward the opening of the recess, and can be inserted into the slot of the first card. The eject mechanism is disposed on one wing of the recess and can eject the first card inserted in the recess.

  The eject mechanism has a strip-like slide member. The slide member is movable along one side wall of the housing. The slide member has an engaging claw. The engaging claw protrudes from the one wing side of the recess toward the center of the recess. Further, the engaging claw can come into contact with the leading edge of the first card or the second card.

  When the second card is inserted into the recess, the engaging claw has an inclined surface on which the second card rides on the card contact surface. When the first card is inserted into the recess, the engaging claw moves below the plurality of contacts, and the first connection terminal can be connected to the contacts. On the other hand, when the second card is inserted into the recess, the leading edge of the second card comes into contact with the leading edge of the header, thereby preventing the second card from entering.

  The housing has an insulating property. The insulating housing may be a housing made of a non-conductive material, and a non-conductive synthetic resin can be molded to obtain a housing having a desired shape.

  A plurality of contacts may be arranged in parallel in the recess of the housing, and the printed circuit board on which the connector is mounted and the first card can be electrically connected. The contact has conductivity, and a conductive contact having a desired shape can be obtained by punching or bending a conductive metal plate. For example, a copper alloy is preferably used as the contact in consideration of easiness of processing, spring characteristics, conductivity, etc., but the contact is not limited to a copper alloy.

  In general, an IC chip is housed in an insulating plastic casing of a card. The IC chip is connected to, for example, a plurality of metal foils attached to the surface of the housing. A plurality of metal foils arranged side by side serve as connection terminals for the card. The individual contacts may be connected one-to-one with the individual connection terminals, and are mechanically and electrically connected.

  The contact is preferably a cantilever contact whose spring function is a cantilever beam. The contact may be composed of an elastic arm and a fixed arm, and the elastic arm may be disposed on the bottom surface of the header and may be provided with a contact point that contacts the first connection terminal formed on the first card. Can be press-fitted into and fixed to the opposing wall. A lead portion may be formed at the end of the fixed arm, and this card connector can be used as a surface mount connector by soldering the lead portion to a printed board.

  The housing may have one side wall and an opposing wall that is perpendicular to the one side wall and opposite the leading edge of the first card, and is surrounded by one side wall and the other bent piece of the cover plate and the opposing wall. A thin rectangular parallelepiped space can be defined as “a recess in which the first card or the second card is inserted and removed”. It can also be a card holding part. The recess is covered with a cover plate to form a rectangular opening into which the card is inserted facing the opposing wall. The distance between the opposing one side wall and the other folded piece is slightly wider than the width of the first card, and the posture (tilt) of the card is regulated by the opposing one side wall and the other bent piece, The first connecting terminals arranged in the opened slot and the contacts can be correctly aligned.

  The cover plate is made of a thin metal plate, and a cover plate having a desired shape can be obtained by molding the developed thin metal plate. The cover plate is preferably made of a conductive thin metal plate, and the cover plate covers the housing, whereby the effect of shielding (electromagnetic shielding) can be obtained.

  Both wings may be bent at right angles, and the cover plate may be formed in a substantially rectangular hole in these bent pieces and locked to lances protruding on both side surfaces of the housing. In addition, a lead piece soldered to the printed board may be provided on the cover plate, the bonding strength with the printed board can be reinforced, and the lead piece can be grounded to the ground of the printed board.

  The slide member is disposed on one wing of the recess. A guide groove for guiding the slide member to be movable is provided on one wing of the recess. The slide member is restricted by the guide groove and can advance and retreat in a direction parallel to the card insertion / removal direction. In the region of the guide groove, the slide member is allowed only to move forward and backward.

  The card connector according to the invention of (1) has an engaging claw that comes into contact with the leading edge of the first card or the second card, and the engaging claw rides on the second card when the second card is inserted into the recess. Since the inclined surface is provided on the card contact surface, when the second card is inserted into the recess, the leading edge of the second card contacts the leading edge of the header, and the second card can be prevented from entering. And the contact can be protected.

  (2) The first card has a rectangular groove cut out along one side, and the slide member has a base end fixed to the slide member, and is formed on one side of the first card. (1) The card connector according to (1), further comprising a cantilevered leaf spring that is elastically energized and has a bent portion bent in a V shape that can enter and exit the groove portion of the first card.

  In the card connector according to the invention of (2), the first card has a square groove. The groove is cut out on one side of the first card. In the card connector according to the invention of (2), the slide member has a cantilevered plate spring.

  The leaf spring has a proximal end fixed to the slide member. The leaf spring urges one side surface of the first card with elasticity, and has a bent portion bent into a V shape that can enter and exit the groove portion of the first card.

  If a 1st card | curd is inserted in a recessed part, after a bending part will deform | transform, it will return, and a bending part can approach into the groove part of a 1st card | curd. In the process of discharging the first card from the recess, the bent portion of the leaf spring engages with the groove of the first card, and the first card can be prevented from popping out.

  (3) The slide member has a heart-shaped cam groove on one side surface, the eject mechanism is held by the housing, and biases the slide member in a direction in which the first card is ejected. (1) or (2), further comprising: a compression coil spring, and a guide rod having one end connected to the heart-shaped cam groove and the other end rotatably supported on a side surface of the housing. Card connector.

  In the card connector according to the invention of (3), the slide member has a heart-shaped cam groove on one side surface. In the card connector according to the invention of (3), the ejection mechanism further includes a compression coil spring and a guide rod.

  The compression coil spring is held by the housing. The compression coil spring urges the slide member in the direction in which the first card is ejected. One end of the guide rod is connected to the heart-shaped cam groove. The other end of the guide rod is rotatably supported on the side surface of the housing.

  In the card connector according to the invention of (3), when the one end of the guide rod is locked to the starting point of the heart-shaped cam groove, the tip of the bent portion of the leaf spring projects slightly into the recess. Has been placed. When the first card is inserted into the recess, the leading edge of the first card comes into contact with the engaging claw.

  When the first card is further inserted, the bent portion of the leaf spring enters the groove portion of the first card. Then, one end of the guide rod moves along the travel of the heart-shaped cam groove in conjunction with the parallel movement of the slide member in the insertion direction against the urging force of the compression coil spring.

  The slide member is fixed in position by engaging one end of the guide rod with a V-shaped groove formed at the apex of the heart-shaped cam groove. And since the bending part of a leaf | plate spring has entered into the groove part of the 1st card | curd, the mounting state of a 1st card | curd is maintained. Thus, the card connector according to the invention of (3) can lock the first card.

  The card connector according to the present invention has an engaging claw that comes into contact with the leading edge of the first card or the second card, and the engaging claw has an inclined surface on which the second card rides when the second card is inserted into the recess. Since it has in the card | curd contact surface, when the 2nd card | curd is inserted in a recessed part, the front-end edge of a 2nd card | curd will contact | abut to the front-end edge of a header, and the entrance of a 2nd card | curd can be prevented. And the contact can be protected.

It is a perspective view which shows the structure of the connector for cards by one Embodiment of this invention, FIG. 1 (A) is the state figure before inserting a 1st card | curd, FIG.1 (B) inserted the 1st card | curd. It is a state diagram. It is a figure which shows the structure of the 1st card | curd adapted to the connector for cards by the said embodiment, FIG. 2 (A) is a top view of a 1st card | curd, FIG.2 (B) is a left view of a 1st card | curd. is there. It is a top view which shows the structure of the connector for cards by the said embodiment. It is a front view which shows the structure of the connector for cards by the said embodiment. It is a bottom view which shows the structure of the connector for cards by the said embodiment. It is a top view which shows the structure of the connector for cards by the said embodiment, and is the state figure which removed the cover board. It is a perspective view which shows the structure of the connector for cards by the said embodiment, and is the state figure which removed the cover board. It is a perspective exploded view which shows the structure of the connector for cards by the said embodiment. It is a perspective view which shows the structure of the connector for cards by the said embodiment, and is a state figure immediately after riding the inclined surface in which the 2nd card was formed in the engagement nail | claw. FIG. 6 is a perspective view showing the configuration of the card connector according to the embodiment, in which the leading edge of the second card is in contact with the leading edge of the header after the second card rides on the inclined surface formed on the engaging claw. FIG. FIG. 11A is a longitudinal sectional view of the card connector according to the embodiment, FIG. 11A is a state diagram immediately before inserting the first card into the card connector, and FIG. 11B is a diagram illustrating the first card as the card connector. FIG. 11 (C) is a state diagram in which the first card is further inserted from the state of FIG. 11 (B), FIG. 11 (D). ) Is a state diagram in which the first connection terminal of the first card is connected to the contact. FIG. 12A is a longitudinal sectional view of the card connector according to the embodiment, FIG. 12A is a state diagram immediately before inserting the second card into the card connector, and FIG. 12B is a state diagram of the second card as the card connector. FIG. 12C is a state diagram immediately after the second card rides on the inclined surface formed on the engaging claw, and FIG. 12 (D) is a state diagram in which the leading edge of the second card abuts against the leading edge of the header after the second card rides on the inclined surface formed on the engaging claw.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
[Configuration of card connector]
First, the configuration of a card connector according to an embodiment of the present invention will be described.

  FIG. 1 is a perspective view showing a configuration of a card connector according to an embodiment of the present invention. FIG. 1 (A) is a state diagram before inserting a first card, and FIG. 1 (B) is a first diagram. It is the state figure which inserted the card | curd. 2A and 2B are diagrams showing a configuration of a first card that conforms to the card connector according to the embodiment. FIG. 2A is a plan view of the first card, and FIG. 2B is a diagram of the first card. It is a left side view.

  FIG. 3 is a plan view showing the configuration of the card connector according to the embodiment. FIG. 4 is a front view showing the configuration of the card connector according to the embodiment. FIG. 5 is a bottom view showing the configuration of the card connector according to the embodiment.

  FIG. 6 is a plan view showing the configuration of the card connector according to the embodiment, and is a state diagram with the cover plate removed. FIG. 7 is a perspective view illustrating a configuration of the card connector according to the embodiment, and is a state diagram in which a cover plate is removed. FIG. 8 is a perspective exploded view showing the configuration of the card connector according to the embodiment.

(Configuration of first card and second card)
Referring to FIG. 1, a card connector (hereinafter abbreviated as a connector) 10 according to an embodiment of the present invention can insert a regular substantially rectangular first card 5 having a predetermined outer shape and thickness (see FIG. 1). 2). On the other hand, the connector 10 can also be inserted with a non-regular, substantially rectangular second card 6 having a smaller outer shape and a smaller thickness than the first card 5 (see FIG. 9 or FIG. 10).

  Referring to FIG. 2, the first card 5 is, for example, an XQD (registered trademark) card, and a plurality of first connection terminals 5t are arranged inside a slot 5s opened on one end face. The first card 5 has a square groove 51 a cut out in the middle of the one side surface 51. On the other hand, referring to FIG. 9 or FIG. 10, the second card 6 is, for example, an SD card, and a plurality of exposed second connection terminals 6t are arranged at one end.

(Schematic configuration of card connector)
1 to 8, the connector 10 includes a plate-shaped housing 1 and a cover plate 2. The housing 1 forms a recess 11 into which the first card 5 or the second card 6 is inserted and removed. The cover plate 2 covers the recess 11 of the housing 1.

  1 to 8, the connector 10 includes a plurality of contacts 3 covered with a header 12h and a push-push type eject mechanism 4. The header 12h is disposed at the back of the housing 1, protrudes toward the opening 15 of the recess 11, and can be inserted into the slot 5s of the first card 5 (see FIG. 11A). The ejection mechanism 4 is disposed on one wing of the recess 11 and can eject the first card 5 or the second card 6 inserted into the recess 11.

  Referring to FIGS. 6 to 8, the eject mechanism 4 has a strip-like slide member 41. The slide member 41 can move along one side wall 13 of the housing 1. The slide member 41 has an engaging claw 410. The engaging claw 410 protrudes from the one wing side of the recess 11 toward the center of the recess 11. Further, the engaging claw 410 can contact the leading edge of the first card 5 or the second card 6 (see FIG. 11B or FIG. 12B).

  6 to 8, the engaging claw 410 has an inclined surface 41s on the card abutting surface on which the second card 6 rides when the second card 6 is inserted into the recess 11 (FIG. 9 or FIG. 9). 10). On the other hand, when the first card 5 is inserted into the recess 11, the engaging claws 410 move below the plurality of contacts 3, and the first connection terminals 5t can be connected to the contacts 3 (see FIG. 11D).

(Configuration of eject mechanism)
6 to 8, the slide member 41 includes a cantilevered leaf spring 42. The leaf spring 42 has a proximal end portion fixed to the slide member 41. The leaf spring 42 can move integrally with the slide member 41. Further, the leaf spring 42 elastically biases one side surface 51 of the first card 5 and has a bent portion 42a bent in a V shape that can enter and exit the groove portion 51a of the first card 5. (See FIG. 2).

  1 or 6 to 8, when the first card 5 is inserted into the recess 11, the bent portion 42 a of the leaf spring 42 returns after being deformed, and the bent portion 42 a is returned to the groove portion of the first card 5. You can enter 51a. In the process in which the first card 5 is discharged from the recess 11, the bent portion 42 a of the leaf spring 42 is engaged with the groove portion 51 a of the first card 5, so that the first card 5 can be prevented from popping out.

  Referring to FIG. 7 or FIG. 8, the slide member 41 has a heart-shaped cam groove 41a formed on one side surface. The eject mechanism 4 further includes a compression coil spring 43 and a guide rod 44.

  Referring to FIG. 7 or FIG. 8, the compression coil spring 43 is held by the housing 1 and biases the sliding member 41 in the direction in which the first card 5 or the second card 6 is ejected. One end 44a of the guide rod 44 is connected to the heart-shaped cam groove 41a. The other end 44b of the guide rod 44 is supported by the housing 1 so as to be rotatable.

  Referring to FIG. 8, one wing of the concave portion 11 includes a first guide groove portion 11g, a second guide groove portion 12g, and a partition wall 13g. The first guide groove 11g is urged by the compression coil spring 43, and the slide member 41 is stopped on the opening side of the recess 11. The first guide groove 11g holds the slide member 41 in an inclined state so that the tip of the bent portion 42a of the leaf spring 42 slightly protrudes into the recess 11 (see FIG. 6). The second guide groove portion 12g communicates with the first guide groove portion 11g. Further, the second guide groove portion 12 g ensures the linear motion of the slide member 41 in a state where the bent portion 42 a of the leaf spring 42 is engaged with the groove portion 51 a of the first card 5.

  Referring to FIG. 8, as a substance, the first guide groove portion 11g, the second guide groove portion 12g, and the concave portion 11 are partitioned by a guide 14g extending in a quadrangular prism shape. And the slide member 41 can ensure the linear motion of the slide member 41 because the side wall 41w is guided by the guide 14g. Note that the slide member 41 can also tilt within a partial region of the second guide groove portion 12g.

  Referring to FIG. 6 or FIG. 7, the partition wall 13g slightly protrudes toward the back side of the recess 11 so as to separate the first guide groove 11g and the recess 11 from each other. When the slide member 41 moves to the back side of the recess 11, the end of the slide member 41 gets over the partition wall 13g, and the tilt state of the slide member 41 is corrected.

(Contact structure)
3 to 6, a plurality of contacts 3 are arranged side by side in the recess 11 of the housing 1. These contacts 3 can electrically connect the printed circuit board 1p on which the connector 10 is mounted and the first card 5 (see FIG. 1).

  Referring to FIG. 2 or FIG. 6, the first card 5 has an IC chip (not shown) housed in an insulating plastic casing. This IC chip is connected to a plurality of metal foils attached inside the slot 5s. A plurality of metal foils arranged side by side serve as first connection terminals 5 t of the first card 5. The individual contacts 3 may be connected to the individual first connection terminals 5t on a one-to-one basis, and are mechanically and electrically connected.

  Referring to FIGS. 3 to 6 and 11, the contact 3 uses a cantilever contact whose spring works as a cantilever. The contact 3 includes an elastic arm and a fixed arm, and the elastic arm is disposed on the bottom surface of the header 12 h and has a contact point that contacts the first connection terminal 5 t formed on the first card 5. The fixed arm is press-fitted and fixed to the opposing wall 14 that forms the recess 11. The contact 3 is formed with a lead portion 3r at the end of the fixed arm, and the connector 10 according to the embodiment can be used as a surface mount connector by soldering the lead portion 3r to the printed circuit board 1p (see FIG. 1).

(Housing configuration)
Referring to FIG. 3 or FIG. 6 to FIG. 8, the housing 1 has one side wall 13 and an opposing wall 14 that is orthogonal to the one side wall 13 and is opposed to the leading edge of the first card 5. A thin rectangular parallelepiped space surrounded by the one side wall 13 and the other bent piece 22 of the cover plate 2 and the opposing wall 14 can be defined as “a recess 11 into which the first card 5 or the second card 6 is inserted and removed”. It can also be a card holding part.

  4 to 8, the concave portion 11 of the housing 1 is covered with the cover plate 2, thereby forming a rectangular opening 15 into which the first card 5 or the second card 6 is inserted facing the opposing wall 14. Is done. The distance between the opposite side wall 13 and the other bent piece 22 is slightly wider than the width of the first card 5, and the posture of the first card 5 is regulated by the opposite side wall 13 and the other bent piece 22. The first connection terminal 5t of the first card 5 and the contact 3 can be correctly aligned.

(Structure of cover plate)
With reference to FIG. 1 or FIG. 3 to FIG. 4, the cover plate 2 has both wings of the main surface plate 21 bent at a right angle. The cover plate 2 has a plurality of substantially rectangular holes 22h in a pair of bent pieces 22 and 22. These substantially rectangular holes 22h can be locked to a plurality of lances 1r protruding from the side surfaces of the one side wall 13 and the opposing wall 14 of the housing 1 (see FIGS. 6 to 8).

  Also, referring to FIG. 1 or FIGS. 3 to 5, the cover plate 2 is provided with a plurality of lead pieces 2r to be soldered to the printed circuit board 1p. By joining these lead pieces 2r to the printed circuit board 1p by soldering, the bonding strength with the printed circuit board 1p can be reinforced, and these lead pieces 2r can be grounded to the ground of the printed circuit board 1p.

  Referring to FIG. 1 or FIG. 3 to FIG. 5, the main surface plate 21 of the cover plate 2 has a pair of leaf spring pieces 2a and 2a. The leaf spring piece 2 a biases the force of the first card 5 toward the bottom surface of the recess 11 of the housing 1. The leaf spring piece 2a biases the surface of the first card 5 with a relatively weak force so as not to damage the surface of the first card 5.

(Configuration of slide member)
With reference to FIGS. 6 to 8, the slide member 41 is disposed on one wing of the recess 11. One wing of the recess 11 is provided with a second guide groove 12g that guides the slide member 41 in a movable manner. The slide member 41 is restricted by the second guide groove 12g and can advance and retreat in a direction parallel to the insertion / extraction direction of the first card 5. The slide member 41 is only allowed to move forward and backward in the region of the second guide groove 12g.

  6 to 8, the side wall 41 w of the slide member 41 can partially function as one side wall that regulates the posture (tilt) of the first card 5, and the posture (tilt) of the first card 5. The other bent piece 22 provided on the cover plate 2 that guides the other side surface 52 of the first card 5 is substituted for the other side wall that regulates (see FIGS. 3 to 5).

  Referring to FIG. 8, a cylindrical hole 4 h that holds a part of the compression coil spring 43 is formed at the end of the slide member 41. On the other hand, the housing 1 is formed with a rod-shaped protrusion 1t that faces the cylindrical hole 4h and enters the compression coil spring 43.

  Referring to FIGS. 6 to 8, both the coil end portions of the compression coil spring 43 are mounted between the cylindrical hole 4 h and the rod-shaped protrusion 1 t, whereby the slide member 41 is attached to the first card 5 or the second card 6. Force can be applied in the direction of discharge. In a state where the first card 5 or the second card 6 is not inserted into the concave portion 11, the slide member 41 is biased by the compression coil spring 43 and tilted, and in the inclined state, the opening 15 side (the first guide groove portion 11g). ) Has stopped.

  Referring to FIG. 8, both end portions of the guide rod 44 are refracted at a substantially right angle. Referring to FIG. 7, one end 44 a of the guide rod 44 is connected to a heart-shaped cam groove 41 a formed in the side surface of the slide member 41. On the other hand, the other end portion 44b of the guide rod 44 is inserted into a hole 11h formed on the tip end side of the one side wall 13 and is rotatably supported. The one end 44a of the guide rod 44 can follow the heart-shaped cam groove 41a.

  Referring to FIGS. 6 to 8, if the slide member 41 having the heart-shaped cam groove 41a is a cam serving as a moving node and the guide rod 44 is a driven node, the slide member 41 and the guide rod 44 are cams. A cam device in which the follower is relatively displaced is formed. Further, the heart-shaped cam groove 41a is not only a plane curve that draws a heart-shaped locus, but also a space curve including a continuous locus in which the bottom surface of the heart-shaped cam groove 41a is a step or a slope. The slide member 41 and the guide rod 44 constitute a so-called three-dimensional cam device.

  Referring to FIG. 8, the heart-shaped cam groove 41a depicts a trajectory of a travel stroke from the start point 4s and a trajectory of a return stroke returning to the start point 4s. The trajectory of the heart-shaped cam groove 41a depicts an irreversible continuous trajectory in which the one end portion 44a of the guide rod 44 does not reverse in the entire stroke even though the one end portion 44a of the guide rod 44 partially reverses. .

  Referring to FIG. 8, the heart-shaped cam groove 4a forms a V-shaped groove 4v that is depressed in a V-shape at a branch point between the trajectory of the going stroke and the trajectory of the returning stroke. When the one end portion 44a of the guide rod 44 is engaged with the V-shaped groove 4v, the slide member 41 can be locked at the mounting position of the first card 5 by being biased by the compression coil spring 43. The cam device constituted by the heart-shaped cam groove 41 a and the guide rod 44 defines one stop position of the slide member 41.

  Referring to FIGS. 6 to 8, the leaf spring 42 is fixed by press-fitting a proximal end portion to the slide member 41. The leaf spring 42 is disposed on the slide member 41 such that a bent portion 42 a bent in a V shape protrudes toward the recess 11. The leaf spring 42 and the slide member 41 advance and retract together. The leaf spring 42 may be a cantilever beam, and is configured to be elastically deformed only when a load acts in a direction orthogonal to the direction in which the first card 5 advances and retreats.

[Operation of card connector]
Next, the operation and effect of the connector 10 will be described while explaining the operation of the connector 10 according to the embodiment. First, the mounting order of the first card 5 which is a regular card will be described.

  FIG. 9 is a perspective view showing the configuration of the card connector according to the embodiment, and is a state diagram immediately after the second card rides on the inclined surface formed on the engaging claw. FIG. 10 is a perspective view showing the configuration of the card connector according to the embodiment, and after the second card rides on the inclined surface formed on the engaging claw, the leading edge of the second card becomes the leading edge of the header. It is the state figure which contact | abutted.

  11 is a longitudinal sectional view of the card connector according to the embodiment, FIG. 11A is a state diagram immediately before the first card is inserted into the card connector, and FIG. 11B is the first card. FIG. 11C is a state diagram in which the first card is further inserted from the state of FIG. 11B, and FIG. 11C is a state diagram in which the leading edge of the first card is in contact with the engaging claw. FIG. 11D is a state diagram in which the first connection terminal of the first card is connected to the contact.

  12 is a longitudinal sectional view of the card connector according to the embodiment, FIG. 12 (A) is a state diagram immediately before inserting the second card into the card connector, and FIG. 12 (B) is the second card. FIG. 12 (C) is a state immediately after the second card rides on the inclined surface formed on the engaging claw. FIG. 12D is a state diagram in which the leading edge of the second card abuts against the leading edge of the header after the second card rides on the inclined surface formed on the engaging claw.

  When the first card 5 is inserted into the recess 11 from the state shown in FIG. 11A, the leading edge of the first card 5 comes into contact with the bent portion 42a of the leaf spring 42 (see FIG. 6). When the leading edge of the first card 5 is in contact with the bent portion 42a of the leaf spring 42, the slide member 41 maintains the tilted posture (see FIG. 6). When the leading edge of the first card 5 is in contact with the bent portion 42a of the leaf spring 42, the one end 44a of the guide bar 44 is positioned at the starting point 4s of the heart-shaped cam groove 41a (FIG. 8). reference).

  Next, when the first card 5 is further inserted into the back side of the recess 11 from the state in which the leading edge of the first card 5 is in contact with the bent portion 42a of the leaf spring 42, the state shown in FIG. become. In the state shown in FIG. 11B, the leading edge of the first card 5 is in contact with the card contact surface of the engagement claw 410. In the state shown in FIG. 11B, the bent portion 42a of the leaf spring 42 returns after being deformed, and the bent portion 42a of the leaf spring 42 enters the groove portion 51a of the first card 5. (See FIG. 6).

  Next, when the first card 5 is further inserted into the inner side of the recess 11 against the compression coil spring 43 from the state shown in FIG. 11B, the state shown in FIG. Become. In the state shown in FIG. 11C, the bent portion 42 a of the leaf spring 42 is engaged with the groove portion 51 a of the first card 5, and the slide member 41 has advanced to the back side of the recess 11. In the process of shifting from the state shown in FIG. 11B to the state shown in FIG. 11C, the one end 44a of the guide bar 44 goes from the starting point 4s of the heart-shaped cam groove 41a. It has moved to the locus of the stroke (see FIG. 7 or FIG. 8).

  In the process of shifting from the state shown in FIG. 11B to the state shown in FIG. 11C, the first card 5 is formed by the bottom surface of the recess 11 and the main surface plate 21 of the cover plate 2. Movement in the thickness direction is restricted. Therefore, the first card 5 can move the engaging claw 410 without riding on the inclined surface 41 s of the engaging claw 410.

  When the first card 5 is further inserted into the inner side of the recess 11 against the compression coil spring 43 from the state shown in FIG. 11C, the state shown in FIG. In the state shown in FIG. 11D, the slide member 41 has moved from the region of the first guide groove portion 11g to the region of the second guide groove portion 12g, and the slide member 41 is allowed only a straight movement. Yes. Further, in the state shown in FIG. 11D, the engaging claws 410 move below the plurality of contacts 3, and the first connection terminals 5 t can be connected to the contacts 3.

  In addition, referring to FIG. 8, relative to the movement of the slide member 41, the one end portion 44 a of the guide rod 44 is engaged with the V-shaped groove 4 v formed at the apex of the heart-shaped cam groove 41 a, The position of the slide member 41 is fixed. In this case, the bent state 42 a of the leaf spring 42 enters the groove 51 a of the first card 5, so that the mounted state of the first card 5 is maintained. In this way, the connector 10 according to the embodiment can lock the first card 5. The description of the discharge order of the first card 5 is omitted.

  Next, the state change when the second card 6 which is an unauthorized card is inserted into the connector 10 will be described.

  When the second card 6 is inserted into the recess 11 from the state shown in FIG. 12A, the leading edge of the second card 6 is in contact with the card contact surface of the engaging claw 410 (FIG. 12B )reference). When the second card 6 is further inserted into the inner side of the recess 11 against the compression coil spring 43 from the state shown in FIG. 12B, as shown in FIG. 9 or FIG. The 2 card 6 rides on the inclined surface 41 s of the engaging claw 410.

  When the second card 6 is further inserted into the back side of the recess 11 from the state shown in FIG. 9 or FIG. 11C, the second card 6 moves over the engagement claw 410. The leading edge of the second card 6 abuts against the leading edge of the header 12h, so that the second card 6 can be prevented from entering (see FIG. 10 or FIG. 11D). Then, the contact 3 can be protected from an operation caused by erroneous insertion of the second card 6.

  As described above, the connector 10 according to the embodiment has the engaging claw 410 that abuts on the leading edge of the first card 5 or the second card 6, and the engaging claw 410 inserts the second card 6 into the recess 11. Since the second card 6 has an inclined surface 41s on the card contact surface, when the second card 6 is inserted into the recess 11, the leading edge of the second card 6 contacts the leading edge of the header 12h. The entry of the second card 6 can be prevented. The contact 3 can be protected.

  The card connector according to the present invention can prevent data loss due to an erroneous electrical connection due to erroneous insertion of the card, and can be easily taken out by erroneous connection. The card connector according to the present invention can protect data in the card, and can reduce the labor and cost of repairing the connector.

DESCRIPTION OF SYMBOLS 1 Housing 2 Cover board 3 Contact 4 Eject mechanism 5 1st card 5s Slot 5t 1st connection terminal 6 2nd card 6t 2nd connection terminal 10 Connector (connector for card | curd)
11 concave portion 12h header 41 slide member 41s inclined surface 410 engaging claw

Claims (3)

A plurality of first connection terminals are arranged inside a slot opened at one end face, a substantially rectangular first card having a predetermined outer shape and thickness, and a plurality of exposed second connection terminals are arranged. A card connector that can be inserted into a substantially rectangular second card having a small outer shape and a smaller thickness than a card,
A plate-like housing having a recess into which the first card or the second card is inserted and removed;
A cover plate covering the recess of the housing;
A plurality of contacts disposed at the back of the housing, projecting toward the opening of the recess, and covered by a header insertable into a slot of the first card;
A push-push type ejection mechanism disposed on one wing of the recess and capable of discharging the first card inserted in the recess;
The eject mechanism has a strip-like slide member that moves along one side wall of the housing;
The slide member has an engaging claw that protrudes from the one wing side of the concave portion toward the central portion of the concave portion and abuts against a leading edge of the first card or the second card,
The engaging claw has an inclined surface on the card abutting surface on which the second card rides when the second card is inserted into the recess,
When the first card is inserted into the recess, the engaging claw moves below the plurality of contacts, and the first connection terminal is connected to the contacts,
When the second card is inserted into the recess, the leading edge of the second card comes into contact with the leading edge of the header to prevent entry of the second card. The first card has a rectangular groove cut out on one side,
The slide member has a proximal end fixed to the slide member, elastically biases one side surface of the first card, and is bent in a V shape that can enter and exit the groove portion of the first card. The card connector according to claim 1, further comprising a cantilevered leaf spring having a portion. The slide member has a heart-shaped cam groove on one side surface,
The eject mechanism is
A compression coil spring held by the housing and biasing the slide member in a direction in which the first card is ejected;
The card connector according to claim 1, further comprising: a guide rod having one end connected to the heart-shaped cam groove and the other end rotatably supported on a side surface of the housing.

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