JP5523243B2 - Card connector - Google Patents

Description

  The present invention relates to a card connector. In particular, the present invention relates to a card connector for electrically connecting a memory card such as an SD (Secure Digital) card and a printed board, and a reverse type card connector structure.

  A memory card, which is a card-type storage device, employs a flash memory as a storage medium. A memory card is very small and consumes little electric power for reading and writing data. For example, it is widely used as a recording medium for portable information devices represented by mobile phones and PDAs (Personal Digital Assistance).

  In recent years, a mobile phone is equipped with a memory card for information management and a memory card for recording. For the former information management memory card, a SIM (Subscriber Identity Module) card is used, and for the latter recording card, for example, an SD card is used.

  In the SIM card, contractor information contracted with a mobile phone company is recorded. The user can be identified by inserting the SIM card into the mobile phone. In other words, by replacing the SIM card, it is possible to use mobile phones of different models that are handled by the same contractor. On the other hand, the SD card is used for recording and reproducing downloaded music or recording and reproducing one-segment broadcasting.

  Generally, a card connector is mounted on a printed circuit board. A plurality of connection terminals are exposed on one side of the card. Then, the bellows-type contact provided in the card connector urges these connection terminals to electrically connect the card and the printed board.

  It is known that the card connector described above includes a normal type and a reverse type. The normal type card connector is configured such that the mounting surface of the card connector on the printed circuit board faces the connection terminal provided on the card. On the other hand, the reverse type card connector is configured such that the mounting surface of the card connector on the printed circuit board and the connection terminal provided on the card are in the same direction.

  As the reverse-type card connector described above, a card connector that can be effectively reduced in thickness (reduced in height) as compared with the conventional one is disclosed (for example, see Patent Document 1).

JP 2009-140801 A

  In general, such a card connector is disposed at an end portion of a printed circuit board in order to facilitate insertion and removal of the card. Further, the reverse type card connector disclosed in Patent Document 1 is arranged in an electronic device so that the printed circuit board can be visually obstructed when viewed from the operation side. In other words, the card is inserted into the reverse type card connector so that the connection terminal is arranged on the back side opposite to the front side of the card.

  For example, such a reverse type card connector is arranged with a card slot inside a battery pack (battery) housed inside the back side of the mobile phone, so that it can be viewed from the front side of the printed circuit board. Thus, there is a problem that the card slot is blocked by the printed circuit board and the card cannot be easily inserted into the card slot.

  The present invention has been made in view of such a problem, and is a reverse type card connector arranged at the end of the back side of a printed circuit board, and for a reverse type card in which the card can be easily inserted. An object is to provide a connector.

  The present inventors have found that the above-mentioned problems can be solved by providing the housing with an extending portion arranged so as to protrude from the edge of the printed circuit board, and based on this, the following new card is provided. Came to invent the connector.

  (1) A reverse type card connector in which the card is inserted from an end of the printed circuit board so that a plurality of connection terminals arranged on one surface of the card are oriented in the same direction as the one surface of the printed circuit board A flat housing having a recess into which the card is inserted, a plurality of contacts arranged in the housing and electrically connecting the plurality of connection terminals and the printed circuit board, and a recess in the housing A flat cover plate that abuts on one surface of the printed circuit board so that the edge substantially coincides with the edge of the printed circuit board, and the bottom surface of the housing. A shell plate enclosing from the side, and the housing has an extending portion on which a bottom wall of the recess extends from an end edge of the cover plate so that the card can be placed thereon. Output unit, the card connector is disposed so as to protrude from the edge of the printed circuit board.

  In the card connector according to the invention of (1), the card is inserted from the end of the printed circuit board so that the plurality of connection terminals arranged on one surface of the card are in the same direction as the one surface of the printed circuit board. This is a reverse type card connector. The card connector according to the invention of (1) includes a flat housing and a plurality of contacts. The card connector according to the invention of (1) includes a flat cover plate and a shell plate.

  The housing has a recess into which the card is inserted. The plurality of contacts are arranged in the housing and electrically connect the plurality of connection terminals and the printed board. The cover plate covers the recess of the housing. The cover plate is in contact with one surface of the printed circuit board so that the edge of the cover plate substantially coincides with the edge of the printed circuit board. The shell plate is disposed to face the cover plate and surrounds the housing from the bottom side.

  In addition, the housing has an extending portion in which the bottom wall of the recess extends from the edge of the cover plate so that the card can be placed thereon. And the extension part is arrange | positioned so that it may protrude from the edge of a printed circuit board.

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

  The contact has conductivity, and a conductive contact having a desired shape can be obtained by punching or bending a conductive metal plate. In consideration of easiness of processing, spring characteristics, conductivity, and the like, for example, a copper alloy is preferably used for the contact, but the contact is not limited to the copper alloy.

  In general, an IC chip is housed in an insulating plastic casing of a card. This IC chip is connected to a plurality of metal foils attached to one surface of the housing. A plurality of metal foils arranged on one surface of the housing 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 bellows-shaped cantilever contact whose spring acts as a cantilever. The contact may be composed of an elastic arm and a fixed arm, and the elastic arm may protrude from the bottom surface of the recess to provide a contact point that contacts a connection terminal formed on the card, and the fixed arm is press-fitted into the recess. Can be fixed.

  The fixing arm of the contact can be molded integrally with the housing and fixed to the recess. 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 one surface of the printed circuit board.

  The housing can be provided with a pair of side walls for guiding both side surfaces of the card, and can also be provided with a stop wall that is perpendicular to the side walls and against which the leading edge of the card abuts. The housing can also be provided with a slide member that constitutes a push-push mechanism, which will be described later, that slides along one side wall. A thin rectangular parallelepiped space surrounded by the side wall of the slide member, the other side wall, and the stop wall can be defined as “a recess into which the card is inserted”. It can also be a card holding part.

  By covering the recess with the cover plate, a rectangular opening (card slot) into which the card is inserted is formed facing the stop wall. The distance between the opposite side wall of the slide member and the other side wall is sufficiently larger than the width of the card, the other side wall and the slide member regulate both wings of the card, and the correct posture (tilt) of the card is maintained, The connection terminals arranged on the card and the contacts arranged on the housing can be correctly aligned.

  The cover plate is preferably made of a conductive metal thin plate, and the flat surface of the cover plate covers the concave portion of the housing, so that a shielding effect for electromagnetically shielding the card inserted into the concave portion can be obtained. Further, since the cover plate abuts on one surface of the housing, it is possible to prevent the card from being damaged by directly polishing one surface of the housing.

  Similarly, the shell plate is made of a thin metal plate having conductivity, and a shell plate having a desired shape can be obtained by molding the developed thin metal plate. The shell plate constitutes a substantially outer shell of the housing, and complements the mechanical strength of the housing. Further, by enclosing the shell plate from the bottom side of the housing, the card inserted into the recess can be electromagnetically shielded.

  The shell plate is preferably bent at both wings at right angles, and a rectangular hole may be formed in these bent pieces, and the shell plate may be locked to a lance projecting on both side surfaces of the housing. These bent pieces may be provided with lead pieces soldered to one surface of the printed circuit board, which can reinforce the bonding strength with the printed circuit board and can ground the shell plate to the ground of the printed circuit board. it can.

  In the card connector according to the invention of (1), since the bottom wall of the recess extends from the edge of the cover plate and the extending portion on which the card can be placed is arranged so as to protrude from the edge of the printed circuit board. When viewed from the other side of the printed circuit board, even if the card slot is blocked by the printed circuit board, the card is guided to the extending portion so that the card can be easily inserted into the card slot.

  (2) The card connector according to (1), wherein the extending portion has a notch portion that is easy to grip and pull out the card at the center of the front edge.

  (3) The housing has a push-push type eject mechanism in which the card is locked when the card is pushed into the recess, the lock is released when the card is pushed again, and the card can be ejected from the recess. The card connector as described in (1) or (2).

  For example, the push-push type ejection mechanism can be constituted by a slide member, a J-shaped leaf spring, a compression coil spring, and a guide rod. The slide member is disposed on one wing of the recess so as to advance and retreat in a direction parallel to the card insertion / removal direction, and a heart-shaped cam groove is formed. The leaf spring has a proximal end fixed to the slide member, a distal end projecting toward the opening of the recess, and the distal end of the projecting piece is bent and inverted toward the proximal end of the projecting piece. It has an inversion piece.

  The compression coil spring is held by the housing and biases the sliding member in the direction in which the card is ejected. One end of the guide rod is connected to the heart-shaped cam groove, and the other end is rotatably supported by the housing.

  Furthermore, the slide member has an engagement side that protrudes from the one wing side of the recess to the opening of the recess and comes into contact with a hypotenuse formed on the side of the card. Further, the protruding piece has a first bent portion at the front end portion which enters and exits from the side surface side of the card into the substantially square groove portion adjacent to the oblique side of the card and is elastically locked to the groove portion.

  Furthermore, the reversal piece is formed in a direction opposite to the first bent portion, and has a second bent portion that moves close to one side wall of the concave portion at the tip portion. The second bent portion comes into contact with one side wall of the concave portion when the groove portion of the card gets over the first bent portion and a force for displacing the first bent portion is applied. Energize the force toward the groove.

  The card connector according to the invention of (3) has a push-push type eject mechanism in which the card is locked when the card is pushed into the recess, the lock is released when the card is pushed again, and the card can be ejected from the recess. The card can be easily inserted and removed.

  (4) The card according to any one of (1) to (3), wherein the card includes a microSD card for recording information, and a normal type SIM card connector to which the SD card for managing information is connected is disposed in the lower stage. Card connector.

  In the card connector according to the invention of (4), even if the SIM card connector is arranged at the lower stage, the card is guided to the extension part, and the card can be easily inserted into the card slot. If it is removed from the connector, the SD card can be easily removed from the SIM card connector.

  The card connector according to the present invention is arranged so that the bottom wall of the recess extends from the edge of the cover plate and the shell plate so that the extended portion on which the card can be placed protrudes from the edge of the printed circuit board. When viewed from the other side of the printed circuit board, even if the card slot is blocked by the printed circuit board, the card is guided to the extending portion so that the card can be easily inserted into the card slot.

It is a perspective view showing composition of a card connector by one embodiment of the present invention, and is a state figure which looked at a card connector mounted on one side of a printed circuit board from the other side of a printed circuit 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 looked at the connector for cards mounted in one surface of the printed circuit board from one surface of the printed circuit board. It is a figure which shows the structure of the connector for cards by the said embodiment, FIG. 3 (A) is the top view which looked at the connector for cards from the other surface of the printed circuit board, FIG.3 (B) is FIG. It is XX arrow sectional drawing of. It is a perspective view which shows the structure of the connector for cards by the said embodiment. It is a figure which shows the structure of the connector for cards by the said embodiment, FIG. 5 (A) is a top view of the connector for cards, FIG. 5 (B) is a front view of the connector for cards, FIG. FIG. 5D is a bottom view of the card connector, and FIG. 5D is a right side view of the card connector. It is a figure which shows the structure of the connector for cards by the said embodiment, FIG. 6 (A) is a rear view of a card connector, FIG.6 (B) is a right view of FIG. 6 (A). 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 with which the connector for cards is equipped. It is a perspective view which shows the structure of the connector for cards by the said embodiment, and is the state figure which arrange | positioned the cover board with which the connector for cards is provided facing the recessed part of the housing. It is a perspective view which shows the structure of the shell board with which the connector for cards by the said embodiment is equipped. 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 housing with which the connector for cards by the said embodiment is equipped. It is a longitudinal cross-sectional view which shows the state which has arrange | positioned the normal type SIM card connector in the lower stage of the card connector by the said embodiment.

  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, and is a state diagram of a card connector mounted on one surface of a printed circuit board as viewed from the other surface of the printed circuit board. .

  FIG. 2 is a perspective view showing the configuration of the card connector according to the embodiment, and is a state diagram of the card connector mounted on one surface of the printed circuit board as viewed from one surface of the printed circuit board. FIG. 3 is a diagram illustrating the configuration of the card connector according to the embodiment. FIG. 3A is a plan view of the card connector viewed from the other side of the printed circuit board, and FIG. It is XX arrow sectional drawing of 3 (A).

  1 to 3, a card connector (hereinafter abbreviated as a connector) 10 according to an embodiment of the present invention is mounted on an end of one surface 11p of a printed circuit board 1p. When viewed from the other surface 12p of the printed circuit board 1p, the connector 10 is mounted on the end of the printed circuit board 1p so that most of the connector 10 is shielded by the printed circuit board 1p (see FIG. 1).

  Referring to FIG. 2, the card 1 is formed in a substantially rectangular shape, and a plurality of connection terminals 13 are arranged at one end of one surface 11. Referring to FIG. 1 or FIG. 3, the card 1 is inserted from the end of the printed circuit board 1p so that the plurality of connection terminals 13 arranged on the card 1 are in the same direction as the one surface 11p of the printed circuit board 1p. The That is, the connector 10 according to the embodiment is a reverse type card connector.

  Referring to FIGS. 1 to 3, a card 1 according to the embodiment is a microSD card. The card 1 has a stepped portion 14 protruding from the other surface 12 at the other end. On the other hand, the printed circuit board 1p forms an escape portion 14p in which the edge 13p is notched so that the stepped portion 14 does not contact when the card 1 is inserted into the connector 10.

  Next, the configuration of the connector 10 according to the embodiment will be described. FIG. 4 is a perspective view showing the configuration of the card connector according to the embodiment. 5A and 5B are diagrams showing the configuration of the card connector according to the embodiment. FIG. 5A is a plan view of the card connector, FIG. 5B is a front view of the card connector, and FIG. C) is a bottom view of the card connector, and FIG. 5D is a right side view of the card connector.

  6 is a diagram showing the configuration of the card connector according to the embodiment, FIG. 6 (A) is a rear view of the card connector, and FIG. 6 (B) is a right side of FIG. 6 (A). FIG. FIG. 7 is a perspective view showing a configuration of the card connector according to the embodiment, and is a state diagram in which a cover plate provided in the card connector is removed. FIG. 8 is a perspective view showing a configuration of the card connector according to the embodiment, and is a state diagram in which a cover plate provided in the card connector is arranged to face the concave portion of the housing.

  Further, FIG. 9 is a perspective view showing a configuration of a shell plate provided in the card connector according to the embodiment. FIG. 10 is a perspective exploded view showing the configuration of the card connector according to the embodiment. FIG. 11 is a perspective view showing a configuration of a housing provided in the card connector according to the embodiment.

  Referring to FIG. 7 or FIG. 8 and FIG. 10, the connector 10 includes a flat housing 2. The housing 2 has a recess 21 into which the card 1 is inserted. The connector 10 includes a plurality of contacts 3. The plurality of contacts 3 are arranged in the housing 2 and electrically connect the plurality of connection terminals 13 and the printed board 1p.

  4 to 9, the connector 10 includes a flat cover plate 4 and a shell plate 5. The cover plate 4 covers the recess 21 of the housing 2. The cover plate 4 is in contact with one surface 11p of the printed circuit board 1p so that the edge 411 of the cover plate 4 substantially coincides with the edge 13p of the printed circuit board 1p. The shell plate 5 is disposed to face the cover plate 4 and surrounds the bottom surface side of the housing 2.

  Referring to FIGS. 1 to 11, the housing 2 has an extended portion 22 on which the bottom wall of the recess 21 extends from the edge 411 of the cover plate 4 and on which the card 1 can be placed. And the extension part 22 is arrange | positioned so that it may protrude from the edge 13p of the printed circuit board 1p.

  Referring to FIG. 7 or FIG. 8 and FIG. 10, the contact 3 may be a cantilever contact whose spring works as a cantilever, and is composed of an elastic arm 31 and a fixed arm 32. The elastic arm 31 is provided with a contact 3 a that protrudes from the bottom surface of the recess 21 and contacts the connection terminal 13 (see FIG. 2) formed on the card 1. The fixed arm 32 is integrally molded and fixed to the bottom surface of the recess 21. Moreover, the lead part 3b is formed in the edge part of the fixed arm 32, and the connector 10 can be used as a surface mounting connector by soldering the lead part 3b to the printed circuit board 1p (see FIG. 2).

  7 or 8 and 10, the housing 2 has a push-push type eject mechanism 6 therein. The eject mechanism 6 includes a slide member 6a, a J-shaped plate spring 6b, a compression coil spring 6c, and a guide rod 6d. The slide member 6a is disposed on one wing of the recess 21 so as to advance and retreat in a direction parallel to the insertion / extraction direction of the card 1, and a heart-shaped cam groove 61a is formed.

  Referring to FIG. 7 or FIG. 8 and FIG. 10, the leaf spring 6b has a protruding piece 61b and a reversing piece 62b. The base end portion of the protruding piece 61b is fixed to the slide member 6a. The tip of the protruding piece 61 b protrudes toward the opening of the recess 21. The reversing piece 62b is bent toward the proximal end portion of the protruding piece 61b with the distal end portion of the protruding piece 61b being bent.

  Referring to FIG. 7 or FIG. 8 and FIG. 10, the compression coil spring 6c is held by the housing 2 and biases the sliding member 6a in the direction in which the card 1 is ejected. One end 61d of the guide rod 6d is connected to the heart-shaped cam groove 61a, and the other end 62d is rotatably supported by the housing 2. The slide member 6a has an engagement side 61 that protrudes from the one wing side of the recess 21 into the opening of the recess 21 and abuts against the oblique side 1a formed on the side of the card 1 (see FIG. 1 or FIG. 2).

  Referring to FIG. 10, the protruding piece 61b has a first bent portion 611 at the tip. The first bent portion 611 enters and exits from the side surface side of the card 1 into a substantially square groove portion 1b adjacent to the oblique side 1a of the card 1 and elastically engages with the groove portion 1b. On the other hand, the reversal piece 62b has the 2nd bending part 612 in the front-end | tip part. The second bent portion 612 is formed in a direction opposite to the first bent portion 611 and moves close to one side wall 21 a of the recess 21.

  Referring to FIG. 2 or FIG. 4, the connector 10 forms an opening (card slot) 20 into which the card 1 is inserted by attaching the cover plate 4 to the housing 2, thereby forming a thin rectangular parallelepiped card holding portion. Is done.

  Referring to FIG. 7 or FIG. 8 and FIG. 10 or FIG. 11, the housing 2 includes a pair of opposing side walls 21a and 21b, and a stop wall 21c on which the leading edge of the card 1 abuts perpendicularly to the pair of side walls 21a and 21b. have. The housing 2 includes a slide member 6a that slides along the side wall 21a. Then, a thin rectangular parallelepiped space surrounded by the side wall 62, the side wall 21 b, and the stop wall 21 c of the slide member 6 a can be used as the recess 21.

  4 to 8, when the recess 21 is covered with the cover plate 4, a rectangular opening into which the card 1 is inserted is formed facing the stop wall 21c. The distance between the opposing side wall 21b and the side wall 62 of the slide member 6a is slightly wider than the width of the card 1, and the other side wall 21b, the slide member 6a and the leaf spring 6b regulate both wings of the card 1, 1 is regulated so that the connection terminal 13 and the contact 3 of the card 1 can be correctly aligned.

  4 to 6, the cover plate 4 is formed by bending a part of both wings at a right angle. The front ends of these bent pieces 4a are formed in a T shape. Then, the cover plate 4 is incorporated into the housing 2 by engaging the bent pieces 4a with the hook-shaped holes 5a provided on both wings of the shell plate 5 (see FIG. 9). Further, the flat surface 40 of the cover plate 4 facing the recess 21 is provided with a cantilevered spring piece 4b for urging the guide rod 6d against the bottom surface of the heart-shaped cam groove 61a (see FIG. 10).

  Referring to FIG. 5 or FIG. 9, the shell plate 5 has both wings in one direction bent at a right angle. The shell plate 5 is formed by bending a part of both wings in the other direction at a right angle. A plurality of rectangular holes 5b are formed in these bent pieces. The shell plate 5 is incorporated in the housing 2 by the plurality of rectangular holes 5 b engaging with the lance 2 r protruding from both end faces of the housing 2. The shell plate 5 is provided with lead pieces 5r soldered to the printed circuit board 1p (see FIG. 2).

  With reference to FIG. 7 or FIG. 8 and FIG. 10, a slide member 6 a is disposed on one wing of the recess 21. A card detection switch 7 that electrically detects that the card 1 is in the mounting position is provided on the other wing of the recess 21. The card detection switch 7 includes a movable plate 7a and a fixed plate 7b. When the card 1 is in the mounting position, it is pushed by the leading edge of the card 1 and the leading end of the movable plate 7a is displaced, so that the movable plate 7a and the fixed plate 7b are electrically connected. When the card 1 is removed, the tip of the movable plate 7a is restored and the movable plate 7a and the fixed plate 7b are electrically disconnected. In this way, the presence or absence of the card 1 is electrically detected.

  Referring to FIG. 10 or FIG. 11, a groove 25 for movably guiding the slide member 6 a is provided on one wing of the housing 2. The slide member 6a is restricted by the groove 25 and can advance and retreat in a direction parallel to the card 1 insertion / extraction direction. The slide member 6a is only allowed to move forward and backward.

  Referring to FIG. 10 or FIG. 11, a longitudinal groove 26 that accommodates the compression coil spring 6 c is formed in one wing of the housing 2. On the other hand, the slide member 6a is formed with a single wing piece against which one coil end of the compression coil spring 6c abuts. The single wing piece protrudes in an L shape in a direction orthogonal to the longitudinal direction of the slide member 6a.

  Referring to FIG. 7 or FIG. 8 and FIG. 10, a cylindrical projection 62a that protrudes substantially parallel to the groove 25 is formed on one wing piece of the slide member 6a. On the other hand, a square groove 25 a that faces the cylindrical protrusion 62 a and communicates with the groove 25 is formed in the stop wall 21 c of the housing 2. Then, by mounting both coil ends of the compression coil spring 6c between the cylindrical protrusion 62a and the rectangular groove 25a, it is possible to urge the slide member 6a in the direction in which the card 1 is ejected. In a state where the card 1 is not inserted, the slide member 6a is urged by the compression coil spring 6c and stops at the opening 20 side of the recess 21.

  Referring to FIG. 7 or FIG. 8 and FIG. 10, both ends of the guide rod 6d are bent at a substantially right angle, and one end 61d of the guide rod 6d is a heart-shaped cam groove formed in the surface of the slide member 6a. Connect to 61a. On the other hand, the other end 62d of the guide rod 6d is inserted into a hole 25h formed in the stop wall 21c of the housing 2 and is rotatably supported. The one end 61d of the guide rod 6d can follow the heart-shaped cam groove 61a.

  Referring to FIG. 7 or FIG. 8 and FIG. 10, the heart-shaped cam groove 61a depicts the trajectory of the going stroke from the starting point A1 and the trajectory of the returning stroke returning to the starting point A1. The trajectory of the heart-shaped cam groove 61a depicts an irreversible continuous trajectory in which one end 61d of the guide rod 6d does not reverse, even though one end 61d of the guide rod 6d partially reverses. The heart-shaped cam groove 61a forms a V-shaped groove A2 that is depressed in a V shape at a branch point between the trajectory of the going stroke and the trajectory of the return stroke.

  Referring to FIG. 1 or FIG. 10, one end 61 d of the guide rod 6 d is locked to the V-shaped groove A 2, so that it is urged by the compression coil spring 6 c and the slide member 6 a can be locked at the card 1 mounting position. The cam device constituted by the heart-shaped cam groove 61a and the guide rod 6d defines the stop position of the slide member 6a.

  Referring to FIG. 1, FIG. 7, FIG. 8, and FIG. 10, when the card 1 is inserted into the recess 21, the hypotenuse 1 a of the card 1 contacts the first bent portion 611. Further, when the card 1 is inserted, the first bent portion 611 is elastically deformed in a direction away from the hypotenuse 1a while sliding with the hypotenuse 1a. When the oblique side 1 a is in contact with the engaging side 61, the first bent portion 611 slides on the side surface of the card 1 and protrudes into the groove portion 1 b of the card 1. Note that the engaging side 61 of the slide member 6 a is formed with an inclined surface having the same gradient as the oblique side 1 a of the card 1. Subsequently, when the card is pushed, the slide member 6 a moves in the back direction of the recess 21 of the housing 2.

  Referring to FIG. 7 or FIG. 8 and FIG. 10, with the card 1 pushed all the way back, the one end 61d of the guide bar 6d is locked in the V-shaped groove A2, and the slide member 6 a is locked to the housing 2. At the mounting position of the card 1, the first bent portion 611 at the tip of the protruding piece 61b is elastically locked to the groove 1b of the card 1, so that the mounting state of the card 1 can be reliably maintained.

  Referring to FIG. 7 or FIG. 8 and FIG. 10, once the card 1 is pushed (again) from the mounted state of the card 1, the one end 61d of the guide rod 6d is released from the V-shaped groove A2 and moves to the return stroke. To do. The slide member 6 a is urged by the compression coil spring 6 c and moves the card 1 to the opening 20 side of the recess 21. When one end 61d of the guide rod 6d returns relatively to the starting point A1 of the heart-shaped cam groove 61a, the slide member 6a stops. Although inertia force acts on the card 1, since the first bent portion 611 is elastically locked to the groove 1b of the card 1, it is possible to reliably prevent the card 1 from being accidentally popped out. Then, the card 1 can be detached (discharged) from the connector 10 by pulling out the card 1 with a relatively strong force.

  Thus, the push-push type eject mechanism 6 locks the card 1 when the card 1 is pushed into the recess 21, and the card 1 can be ejected from the recess 21 when the card 1 is pushed again.

[Operation of card connector]
Next, the operation and effect of the connector 10 will be described while supplementing the configuration of the connector 10 according to the embodiment. FIG. 12 is a longitudinal sectional view showing a state in which a normal type SIM card connector is arranged in the lower part of the card connector according to the embodiment.

  1 to 11, in the connector 10 according to the embodiment, the bottom wall of the recess 21 extends from the edge of the cover plate 4, and the extended portion 22 on which the card 1 can be placed is connected to the end of the printed circuit board 1 p. It arrange | positions so that it may protrude from the edge 13p. Therefore, when viewed from the other surface 12p of the printed circuit board 1p, even if the opening (card slot) 20 is blocked by the printed circuit board 1p, the card 1 is guided to the extending portion 22 so that the card 1 can be easily inserted into the opening 20. Can be inserted.

  Referring to FIG. 1, FIG. 2, and FIG. 4, the extending portion 22 is provided with a notch portion 23 at the center of the front edge that is easy to grip and pull out the card 1. Can be gripped (see FIG. 3).

  7 or 8 and FIG. 10, the connector 10 according to the embodiment locks the card 1 when the card 1 is pushed into the recess 21, and is unlocked when the card 1 is pushed again. However, since the push-push type eject mechanism 6 that can be discharged from the recess 21 is provided inside the housing 2, the card 1 can be easily inserted and removed.

  Referring to FIG. 12, for example, the card 1 includes a microSD card for recording information. A normal type SIM card connector 100 to which an SD card (not shown) for managing information is connected is mounted on the printed circuit board 2p and arranged at the lower stage of the connector 10.

  FIG. 12 shows a mounting form of a card connector on a mobile phone or the like. In the connector 10 according to the embodiment, even if the SIM card connector 100 is arranged at the lower stage, the card 1 is guided to the extending portion 22 so that the card 1 can be easily inserted into the card slot. If it is removed, the SD card can be easily removed from the SIM card connector 100.

  Referring to FIG. 12, the connector 10 according to the embodiment has an extremely low mounting height (low profile). By similarly reducing the height of the SIM card connector 100, for example, the gap D between the printed circuit board 1p as the sub-board and the printed circuit board 2p as the main board can be reduced. Thereby, it can contribute to size reduction and thickness reduction of an electronic device.

1 Card 1p Printed Circuit Board 2 Housing 3 Contact 4 Cover Plate 5 Shell Plate 10 Connector (Card Connector)
11 One side (one side of the card)
11p One side (one side of the printed circuit board)
13 Connection terminal 13p Edge (edge of printed circuit board)
21 Concave portion 22 Extending portion

Claims (4)

A reverse type card connector in which the card is inserted from an end of the printed circuit board so that a plurality of connection terminals arranged on one surface of the card are oriented in the same direction as one surface of the printed circuit board. ,
A flat housing having a recess into which the card is inserted;
A plurality of contacts arranged in the housing and electrically connecting the plurality of connection terminals and the printed circuit board;
A flat cover plate that covers the concave portion of the housing and abuts against one surface of the printed circuit board so that the edge substantially coincides with the edge of the printed circuit board;
A shell plate disposed opposite to the cover plate and enclosing from the bottom side of the housing,
The housing has an extending portion on which the bottom wall of the recess extends from an edge of the cover plate and the card can be placed thereon.
The extending portion is a card connector arranged so as to protrude from an edge of the printed circuit board.   2. The card connector according to claim 1, wherein the extending portion has a notch portion at a center portion of a front edge which is easy to grip and pull out the card.   The housing has a push-push type eject mechanism inside that the card is locked when the card is pushed into the recess, the lock is released when the card is pushed again, and the card can be ejected from the recess. The card connector according to claim 1 or 2. The card comprises a microSD card for recording information,
The card connector according to any one of claims 1 to 3, wherein a normal type SIM card connector to which an SD card for managing information is connected is arranged in a lower stage.

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