JP2008084624A - Card connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a card connector capable of safely shutting down a card until contact of a contact pad of the card to a contact is broken off from the time when extraction of the card is detected. <P>SOLUTION: In this card connector, a plurality of conductors 40 each having a terminal part 42 connected to a board arranged at one end thereof are fixed on the inner surface of a housing 12 facing to the contact pads 4 of the card 1 along movement paths of the contact pads 4; a plurality of contacts 50 contacting to and separating from the contact pads 4 of the card 1 are made to contact the respective conductors 40 on a card insertion opening side relative to the contact pads 4 of the card 1 when mounted to the housing 12; the contacts 50 are supported to a slide member 71 and moved in line with the movement of the card 1 in the housing 12; and contact of the contact pads 4 of the card 1 to the contacts 50 is kept in extracting the card even on the card insertion opening side relative to the contact pads 4 of the card 1 when mounted to the housing 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a card connector for connecting a memory card to electronic devices such as a mobile phone, a digital camera, a portable music player, and a PDA.

  The card connector structure basically includes a housing and a plurality of contacts. The housing is provided with a card insertion slot on the front side, and holds the card inserted from the card insertion slot at a predetermined position. The plurality of contacts are fixed in a horizontal row in the housing, and are in contact with each other while pressing the plurality of contact pads of the mounted card, thereby electrically connecting the contact pads of the card and the substrate of the electronic device. This enables power-on to the card from the device side and communication between the device and the card.

In addition, the connector is usually provided with a card recognition switch for detecting card attachment based on the contact and separation of two metal pieces that respond to card insertion / extraction. In terms of circuit protection and data protection, this switch has a rule that the switch must be turned on after each contact of the connector comes into contact with all contact pads of the card when the card is inserted (for example, a patent) Reference 1).
JP 2002-100440 A

  Currently, when the device detects card insertion (when the card recognition switch is turned on), the card is powered on, the startup time required to initialize the card normally, and the device The shutdown time from when the removal is detected (when the card recognition switch is turned off) to when the power is safely turned off tends to become longer as the capacity of the card increases. On the other hand, the time from when the device detects the removal of the card until the contact between the contact pad of the card and the contact of the connector is cut off is shortened with the miniaturization of the card and the connector. For this reason, in the case of a conventional card connector, particularly for a small card, the card contact pad and the connector are connected from the time when the device detects the card removal even though the card removal operation is normally performed. A new problem arises that the card cannot be shut down safely within the time until contact with the contact is broken.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a card connector capable of safely shutting down a card when the card is removed.

  The present invention relates to a card for detecting card attachment based on contact and separation of two metal pieces that respond to card insertion / removal of a housing in which cards with contact pads arranged in a row on one main surface are detachably mounted. A card connector provided with a recognition switch, a plurality of elongated conductors provided at one end with a terminal portion to be connected to the board, and the card contact on the card insertion opening side than the contact pad of the card when mounted on the housing A plurality of contacts that are in contact with each other while pressing the pad, and a slide member that moves in the housing in accordance with the movement of the card. Along the way, the contact is in contact with the conductor, and the contact is supported by the slide member so that the card is inside the housing. Wherein the moving according to the movement.

  According to the present invention, when the card is removed, since the card and the board are electrically connected to the card insertion port side of the contact pad of the card when the card is attached to the housing, the card is removed from the time when the card removal is detected. The time until the connection between the card and the board is broken is longer than that of the conventional connector. For this reason, it is possible to safely shut down the card within the time from when the removal of the card is detected until the connection between the contact pad of the card and the substrate is disconnected.

  Further, in the present invention, a slide member disposed on one side of the housing and provided with an operation unit for pushing inward by a card and a contact support unit for supporting the contact, and the slide member of the housing A biasing member that constantly biases toward the card insertion slot side, a heart-shaped cam groove provided in one of the housing and the slide member, and one end supported on the other, are moved in the cam groove in accordance with the movement of the slide member. When the card is inserted, the card is inserted into the housing while the slide member is held at the card mounting position by opening the card after inserting the card into the housing and pushing the slide member into the back of the housing. When the card was removed, the card was squeezed into the back of the housing again. By opening, it is preferred that the slide member is returned to its initial position comprises a card ejection mechanism for ejecting a card attached to the housing. In such a form, in the card connector provided with the card discharge mechanism for discharging the card mounted on the housing by the biasing force of the biasing member accumulated when the card is inserted, the card discharge mechanism is effectively used to The card can be safely shut down while keeping the manufacturing cost low.

  In the card connector of the above embodiment, the engaging portion that engages the notch on the side of the card before the card is inserted into the slide member of the card ejection mechanism before the slide member is pushed into the inside of the housing by the card. It is preferable to provide it. In such a configuration, the card ejected by the card ejecting mechanism can be prevented from coming out of the housing, so that the card mounted on the housing is ejected by the urging force of the urging member accumulated when the card is inserted. In the card connector provided with the card ejection mechanism, the card can be safely shut down more reliably.

  The card connector of the present invention can safely shut down the card when the card is removed.

  Also, when a small card is connected to an electronic device, the card mounted in the housing is provided with a card ejection mechanism that ejects the card by the biasing force of the biasing member accumulated when the card is inserted. It can be shut down safely.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the present embodiment, a case will be described in which the present invention is applied to a card connector with a push / push type card ejection mechanism for a small micro SD card among memory cards.

  1A is a front view of the micro SD card 1, FIG. 1B is a side view of the micro SD card 1, and FIG. 1C is a back view of the micro SD card 1. The micro SD card 1 is a substantially rectangular flat plate whose outer shape is vertically long. The card 1 is provided with a notch 2 for dropping one corner, and the notch 2 prevents erroneous insertion of the card 1 into the connector. Further, a notch 3 is provided on the front side of the notch 2, and the notch 3 prevents the card 1 from being inadvertently pulled out from the connector. A plurality of contact pads 4 made of a narrow rectangular metal plate are exposed on the back surface (one main surface) on the lateral side of the cutout portion 2 so that the one main surface is exposed on the back surface of the card 1. In this state, they are arranged side by side. In FIG. 1C, the contact pads 4 are the first, second, seventh, and eighth from the left for a total of four, and the third from the left is for commands, and the fourth and sixth are for power. The fifth is for the clock and has an 8-pin configuration. By electrically connecting each of the contact pads 4 to the printed wiring board of the electronic device via the contact of the connector, it is possible to turn on the power from the device side to the card and to communicate between the device and the card 1. . The end of the card insertion direction is biased in the card insertion direction from that of the other contact pads 4 so that the power supply contact pads 4 come into contact with the power supply contacts of the connector prior to the other contact pads 4. is doing.

  The structure of the card connector 10 according to an embodiment of the present invention in which the card 1 is mounted will be described with reference to FIGS. 2 is a perspective view showing the external appearance of the card connector 10. FIG. 3 is a perspective view of the card connector 10 with the cover 30 showing the internal structure removed. FIG. 4 shows the card connector 10 with the cover 30 showing the internal structure removed. FIG. 5 is a perspective view showing a structure of a contact 40 provided in the card connector 10. This connector 10 has a box-like shape in which a card insertion slot 11 into which a card 1 is inserted from the end provided with the notch 2 with the back side down is opened to one side (left side) of the front side. A plurality of (eight) contacts 50 for electrically connecting the housing 12, the contact pads 4 of the card 1 and the board of the device via a plurality (eight) conductors 40, a pair of metal pieces 60A, The card recognition switch 60 for electrically detecting the mounting of the card 1 on the device side, and the card 1 is held at a predetermined position in the housing 12 by the first pushing operation by the card 1. A push / push-type card discharge mechanism 70 that is mounted and discharges the card 1 mounted on the housing 12 by a second pushing operation by the card 1 is configured.

  In the housing 12, the inner space on the back side (rear side) of the card insertion slot 11 is a card storage space in which the contact 50 and the card recognition switch 60 are arranged, and the inner space on one side (right side) of this card storage space is This is a space for arranging the card discharge mechanism 70. Such a housing 12 has a body 13 which is a synthetic resin insulator molded integrally with a plurality of conductors 40 by insert molding, and is attached to the body 13 from above to take measures against electrostatic breakdown and noise. The cover 30 is formed by punching and bending a metal plate. The body 13 includes a housing bottom plate 14 provided with a hole 14a for leaving the bottom side of the card accommodation space leaving the peripheral edge thereof, a housing right side wall 15, a housing rear side wall 16, and a right side of the card insertion slot 11. The housing front side wall 17 is integrally formed, and the cover 30 integrally forms a housing top plate 31, a housing left side wall 32, and a right side plate 33 that covers the outer surface of the housing right side wall 22.

  The body 13 includes a positioning fitting portion 18 and a detachment preventing engagement portion 19 which are integrally formed on the left end surface of the housing bottom plate 14 and the outer surface of the housing right wall 15 in order to connect the cover 30, and the card discharge. The front stopper portion 20 and the rear stopper portion 21 that are integrally formed at the front and rear of the arrangement space of the card discharge mechanism 70 in order to determine the movement stroke of the slide member 71 of the mechanism 70 in the card insertion / removal direction and to perform positioning In order to position and fix the pair of metal pieces 60A and 60B, the pair of front and rear slit-like press-fit grooves 22 and 23 formed in the rear stopper portion 21 and the slide member 71 of the card discharge mechanism 70 are moved in the card insertion / removal direction. A guide groove 24 formed on the left side of the hole 14a of the housing bottom plate 14 for guiding, and a card discharge mechanism 70. A bearing portion 25 formed on the front stopper portion 20 for supporting the cam pin, and a return-side stopper portion formed integrally with the end portion of the housing front side wall 17 for positioning the locking portion 76 of the card discharge mechanism 70 26.

  The cover 30 is formed to be integrated with the housing left side wall 32 and the right side plate 33 so as to be connected to the body 13, and prevents the mating side fitting portion 34 and the body 13 side from being detached from the positioning fitting portion 18 on the body 13 side. A mating engagement portion 35 with respect to the engagement portion 19 and a mounting portion formed integrally with the front and rear portions of the housing left side wall 32 and the right side plate 33 in order to fix and connect the cover 30 to the substrate by soldering. A terminal portion 36 and a flexible cantilever-like plate spring piece 37 formed by cutting and raising a part of the housing top plate 31 in order to constantly press the cam pin of the card ejection mechanism 70 downward. ing.

  Each conductor 40 is formed by an elongated terminal formed by punching and bending a thin metal plate, and a front end portion and a rear end at the front portion and the rear portion of the frame-shaped housing bottom plate 14 at the peripheral portion on the bottom side of the card receiving space. Is fixed in parallel and along the movement path of the contact pad 4 of the card 1 in the hole 14a on the bottom side of the card receiving space, and one main surface of each conductor 40 is the card receiving space. A plurality of rail-like fixed contacts 41 are formed on the bottom portion so as to be continuously exposed from the front end portion of the card insertion slot to the rear end portion of the innermost portion, and to contact and slide each contact 50. Further, the rear end portion of each conductor 40 is taken out to the rear outer side of the body 13 and forms a terminal portion 42 for mounting to be fixed and connected to the substrate by soldering.

  Each contact 50 is composed of a thin metal leaf spring formed by punching and bending a thin metal plate, and a fixed portion 51 for fixing to the slide member 71 of the card ejection mechanism 70, and one from the fixed portion 51. A flexible spring piece 52 extending to the side, and a sliding contact formed on the spring piece 52 for pushing down so as to contact and slide the fixed contact 41 of the conductor 40 A portion 53, a flexible spring piece 54 that is extended from the fixing portion 51 to the other side, and a spring piece 54 that is pushed up to make contact with the contact pad 4 of the card 1 while pressing. And a contact portion 55 to be formed.

  Each of the pair of metal pieces 60A and 60B forming the card recognition switch 60 is composed of a thin metal plate spring formed by punching and bending a metal thin plate, and is fixed and connected to the substrate by soldering. A mounting terminal portion 61, a fixing portion 62 for fixing in the press-fitting grooves 22, 23, a flexible spring piece portion 63, and a contact portion 64 formed on the spring piece portion 63. Provided. Each of such a pair of metal pieces 60A and 60B presses the fixing portion 62 into the press-fit grooves 22 and 23 from above, so that the fixing portion 62 can be disposed in the space for arranging the card discharge mechanism 70 via the press-fit grooves 22 and 23. A terminal portion 61 that is fixed to the rear stopper portion 21 at the rear portion and extends toward the rear side from the lower edge of the fixing portion 62 protrudes to the rear outer side of the body 13. Further, the spring piece portion 63 extends substantially in parallel with an angle from the fixed portion 62 so as to protrude to the back of the card receiving space, and is formed in the cantilever-like spring piece portion 63. The contact point 64 is disposed in the inner part of the card housing space so as to protrude in an elastically displaceable manner in the card insertion / extraction direction, and the card recognition switch 60 is formed in the inner part of the housing 12 by the pair of metal pieces 60A and 60B. And arranged.

  The card contact switch 60A on the near side in the card insertion direction is in contact with and separated from the insertion side end of the card 1 as the card 1 is inserted or removed, just before the contact part 64 of the spring piece 63. Sixty operation units 65 are provided.

  As described above, in the card recognition switch 60 formed and arranged in the inner part of the housing 12 by the pair of metal pieces 60A and 60B, when the card 1 is not inserted into the housing 12, the front side in the card insertion direction. The contact part 64 of the metal piece 60A and the contact part 64 of the back metal piece 60B are separated from each other, and the card recognition switch 60 is off (see FIGS. 3 and 4). When the card is inserted, the operation portion 65 is pushed into the back side by the insertion side end of the card 1, the spring piece 63 of the metal piece 60A on the near side in the card insertion direction is bent toward the back side, and the near side in the card insertion direction When the contact part 64 of the metal piece 60A comes into contact with the contact part 64 of the rear metal piece 60B, the card recognition switch 60 is turned on (see FIG. 8). Thereafter, the operation portion 65 is further pushed inward by the insertion side end portion of the card 1 until it is attached to the housing 12 and the insertion side end portion of the card 1 when attached to the housing 12. As described above, while the operation unit 65 is pushed inward by the insertion side end of the card 1, the spring piece 63 of the metal piece 60A on the near side in the card insertion direction and the spring of the metal piece 60B on the back side. Both the contact pieces 63 bend to the back side, and the contact between the contact part 64 of the front metal piece 60A in the card insertion direction and the contact part 64 of the back metal piece 60B is maintained, and the card recognition switch 60 is turned on. (See FIGS. 8 to 11). Further, when the card is removed, the pushing force of the operation portion 65 by the insertion side end portion of the card 1 is removed, and the spring piece portion 63 of the metal piece 60A on the near side in the card insertion direction and the spring piece portion of the metal piece 60B on the back side. When 63 returns to the original state before the card recognition switch 60 is turned on, the contact part 64 of the front metal piece 60A in the card insertion direction is separated from the contact part 64 of the rear metal piece 60B. The card recognition switch 60 is turned off (see FIG. 7).

  That is, in the card recognition switch 60, since the pair of metal pieces 60A and 60B come in contact with and separate from each other when the card 1 is inserted and removed, the presence or absence of the card 1 is detected on the device side by electrically detecting this. can do.

  The push / push type card ejection mechanism 70 includes a slide member 71, a coil spring 72 as a biasing member of the slide member 71, a position holding mechanism for the slide member 71 formed by a heart-shaped cam groove 73 and a cam pin 74. 75 and an engaging member 76 for engaging the card 1 with the slide member 72.

  The slide member 71 is an insulator of a resin molded product, and a card insertion / removal direction along the right side wall 15 of the housing between the front stopper portion 20 and the rear stopper portion 21 in the arrangement space of the card discharge mechanism 70 in the housing 12. It is arrange | positioned so that reciprocation is possible. Such a slide member 71 protrudes from one side surface (left side surface) of the card accommodation space side, and when the card is inserted, an overhang portion 71 a that fits into the cutout portion 2 of the card 1, and the slide member 71 by the card 1. In order to push the card into the back side, the operation part 71b protruding from the rear part of the projecting part 71a to the card accommodating space side so as to contact the insertion side end of the card 1, the heart-shaped cam groove 73 of the positioning mechanism 75, the engagement A slit groove 71c for attaching the combined member 76 is integrally formed.

  The coil spring 72 is disposed between the slide member 71 and the rear stopper portion 21 and constantly urges the slide portion 71 toward the card insertion slot side (front side).

  The cam pin 74 of the positioning mechanism 75 is formed of a thin metal round bar bent into a U-shape, one end of which is in contact with the cam groove 73 provided on the slide member 71 at a substantially right angle, and the other end provided on the body 13. The cam member 73 is supported by the portion 25 so as to be rotatable, and is moved in accordance with the movement of the slide member 71. Further, the cam pin 74 is always pressed downward by a leaf spring piece 37 provided on the cover 30, one end is pressed to the cam groove 73 at a substantially right angle, and the other end is pressed into the bearing portion 25.

  The engaging member 76 is formed of a thin metal plate spring formed by punching and bending a thin metal plate, and has a fixing portion 76a for fixing to a slit groove 71c provided in the slide member 71, and a flexibility. A spring piece portion 76b having a hook, a chevron-shaped engaging portion 76c formed on the spring piece portion 76b, and a spring piece portion 76b for preloading by locking the spring piece portion 76b to the stopper 26 on the return side. And a locking end portion 76d formed at the tip end. Such an engagement member 76 presses the fixing portion 76a into the slit groove 71c of the slide member 71 from above, so that the fixing portion 76a is fixed to the slide member 71 via the slit groove 71c, and the front side from the fixing portion 76a. A spring piece 76b extending toward the front of the slide member 71 protrudes toward the front side of the slide member 71 so as to be elastically displaceable in the card lateral width direction. Further, the engaging portion 76c formed in the cantilever-like spring piece portion 76b is disposed so as to protrude elastically in the card lateral width direction on the front side of the projecting portion 71a of the slide member 71.

  The slide member 71 of the push / push type card ejection mechanism 70 also serves as a slide member for moving the contact 50 in the housing 12 in accordance with the movement of the card 1, and is integrated with the plurality of contacts 50 by insert molding. Molded. In such a slide member 71, in order to support the contacts 50 in a horizontal row on the upper side of the conductors 40, a card receiving space is provided from the front lower side of the main body provided with an overhanging portion 71 a, an operation portion 71 b and a slit groove 71 c A flat plate-like contact support arm 71d is integrally formed so as to protrude into the hole 14a of the housing bottom plate 14 on the bottom side. The contact support arm 71d is slidably fitted and supported in a guide groove 24 formed on the left side surface of the punch hole 14a across the punch hole 14a, and reciprocally moves in the card insertion / removal direction in the punch hole 14a. Arranged freely.

  Each contact 50 has a fixed portion 51 fixed to a contact support arm 71d and is supported in a horizontal row on the upper side of each conductor 40, and is integrally formed with the slide member 71 on the bottom side of the card accommodation space. It can reciprocate in the card insertion / removal direction within a hole 14a of a certain housing bottom plate 14. In addition, the spring piece 52 for pressing that forms the sliding contact portion 53 of each contact 50 is extended from the front end face of the contact support arm 71d at an angle downward and obliquely forward along the conductor 40, and slides. The moving contact portion 53 is contacted and slid while pressing the fixed contact 41 of each conductor 40 from above, so that each contact 50 is always connected to each conductor 40. Further, the push-up spring piece portion 54 forming the contact portion 55 of each contact 50 is extended obliquely upward and rearward along the conductor 40 from the rear end surface of the contact support arm 71d. 55 are arranged at the bottom of the card receiving space so as to protrude in a horizontal row so as to be elastically displaceable in the vertical direction. When the card is inserted, the contact pads 4 of the card 1 are pressed from below and contacted, and each contact 50 is connected. Conductive connection is made with the contact pad 4 of the card 1. That is, each contact 50 electrically connects the contact pad 4 of the card 1 to each conductor 40 when the card is inserted, and electrically connects the contact pad 4 of the card 1 to the substrate via each conductor 40.

  Each contact 50 is not inserted into the housing 12 and when the slide member 71 is moved to the initial position where it abuts against the front stopper portion 20 (see FIG. 4), The contact portion 55 is supported by the slide member 71 so as to be located on the card insertion slot side (front side) with respect to the contact pad 4 (see FIG. 16) of the card 1 when mounted on the housing 12 (see FIG. 12). ing. That is, each contact 50 is located between the contact pad 4 of the card 1 and the board as the card 1 is inserted / removed on the card insertion opening side of the contact pad 50 of the card 1 when mounted on the housing 12 via each conductor 40. Is electrically connected and disconnected, and the connection is maintained from the time of connection until disconnection.

  In FIG. 4, the contact portions 55 of the fourth and sixth power contacts 50 from the right precede the contact portions 55 of the other contacts 50 when the card is inserted. To the card insertion slot side from the contact portion 55 of the other contact 50 so that the contact with the contact pad 4 for the power source of the card 1 is cut off later than the contact portion 55 of the other contact 50 when the card is removed. It is biased to the (front side).

  The card connector 10 according to an embodiment of the present invention configured as described above is formed on a printed wiring board built in a housing of an electronic device such as a mobile phone, and each terminal portion 36 and each conductor 40 of the cover 30. Can be used by mounting the terminal portion 61 of the pair of metal pieces 60A and 60B forming the card recognition switch 60 mechanically fixed by soldering and electrically connected to each other. .

  Next, the operation of the card ejection mechanism 70 of the card connector 10 according to the embodiment of the present invention accompanying the insertion and removal of the card 1, the contact and separation between the contact pad 4 of the card 1 and the contact portion 55 of the contact 50, the card The relationship with the operation of the recognition switch 60 will be described with reference to FIGS. 3 to 4, 6 to 11, and 12 to 17.

  3 to 4 show a state when the card 1 is not inserted. In the card ejection mechanism 70, the slide member 71 that is constantly urged toward the card insertion slot side (front side) by the coil spring 72 moves to the initial position where it abuts against the front stopper portion 20, and the cam pin 74 is connected to the cam groove 73. It is located at the starting point portion 73a. The engaging member 76 abuts a locking end portion 76 d formed at the tip of the spring piece portion 76 b against the stopper portion 26 provided on the body 13, and the engaging portion 76 c formed in the spring piece portion 76 b is moved to the slide member 71. It protrudes into the card storage space on the front side of the overhanging portion 71a. Further, each contact 50 comes into contact with the front end portion of the fixed contact 41 of each conductor 40 while the sliding contact portion 53 presses the spring piece portion 52 for depression from above, and the contact portion 55 is pushed up in a free state. Projecting in a horizontal row at the bottom of the card receiving space on the card insertion slot side (front side) from the contact pad 4 (see FIG. 16) of the card 1 when mounted on the housing 12 through the spring piece 54 for use. Has been. Furthermore, the spring piece 63 of each of the pair of metal pieces 60A and 60B forming the card recognition switch 60 is also in a free state, the contact part 64 of each of the pair of metal pieces 60A and 60B is separated, and the card recognition switch 60 is Is turned off.

  FIG. 6 shows a state when the card 1 is inserted into a position where the slide member 71 of the card ejection mechanism 70 is pushed, and the relationship between the contact pad 4 of the card 1 and the contact portion 55 of the contact 50 at that time is shown in FIG. Show. When the card 1 is properly inserted into the card receiving space of the housing 12 through the card insertion slot 11 from the end where the notch 2 is provided with the back side down, the card 1 slides into the notch 2 of the card 1. While fitting the overhanging portion 71a of the member 71, it is fitted between the housing left side wall 32 and the body portion of the slide member 71 on the upper side of the contact support arm 71b, and the insertion side end portion of the card 1 is the operation portion 71b of the slide member 71. Abut.

  When the notch portion 2 of the card 1 passes through the engaging portion 76c of the engaging member 76 provided on the slide member 71 as the card 1 is inserted, the engaging portion 76c is arranged on the side surface of the notch portion 2. After sliding onto the side surface portion between the notch portion 2 and the notch 3 of the card 1 with bending to the outside (right side) of the spring piece portion 76b, the insertion side end portion of the card 1 is a slide member. At substantially the same time as contacting the operation portion 71b of 71, it is fitted into the notch 3 of the card 1 with elastic return to the inner side (left side) of the spring piece portion 76b, facing the notch 3 of the card 1. Thereby, the card 1 and the slide member 70 are engaged and connected in the card insertion / extraction direction, and the state shown in FIG. 6 is obtained.

  The contact 50 is a point just before the insertion side end of the card 1 comes into contact with the operation portion 71 b of the slide member 71. First, the contact portion 55 of the power contact 50 is connected to the power contact pad 4 of the card 1. The contact portion 55 of the contact 50 other than the power supply other than the power supply for the card 1 is substantially the same as the insertion side end of the card 1 abuts against the operation portion 71b of the slide member 41. The contact pads 4 are in contact with each other, the contact portions 55 of all the contacts 50 are in contact with the contact pads 4 of the card 1, and the contacts 50 and the conductors 40 electrically connect between the contact pads 4 of the card 1 and the substrate of the device. Conductive connection is established and the state shown in FIG. 12 is obtained.

  7 shows a state immediately before the card recognition switch 60 is turned on, and FIG. 13 shows the relationship between the contact pad 4 of the card 1 and the contact portion 55 of the contact 50 at that time. When the card 1 is further inserted from the state shown in FIG. 6, the card 1 pushes the operation portion 71 b of the slide member 71 to the back side by the insertion side end, and the slide member 71 is resisted against the biasing force of the coil spring 72. While pushing inward, the insertion side end of the card 1 is inserted immediately before the operation unit 55 of the card recognition switch 60, and the state shown in FIG. 7 is obtained.

  Further, the contact 50 moves the sliding contact portion 53 of the contact 50 to the back side on the fixed contact 41 of each conductor 40 in accordance with the movement of the slide member 71 accompanying the insertion of the card 1 from the state shown in FIG. Are moved to the back side, and the contact state between the contact portion 55 of the contact 50 and the contact pad 4 of the card 1 shown in FIG. The connection between the one contact pad 4 and the substrate of the device is maintained, and the state shown in FIG. 13 is obtained.

  8 shows a state when the card recognition switch 60 is turned on, and FIG. 14 shows the relationship between the contact pad 4 of the card 1 and the contact portion 55 of the contact 50 at that time. When the card 1 is further inserted from the state shown in FIG. 7, the card 1 is operated to push the operation portion 65 of the card recognition switch 60 to the back side while pushing the slide member 71 further to the back side by the insertion side end. Then, the spring piece 63 of the front metal piece 60A in the card insertion direction is bent back, and the contact part 64 of the front metal piece 60A in the card insertion direction becomes the contact part 64 of the back metal piece 60B. At the time of contact, the card recognition switch 60 is turned on and the state shown in FIG. 8 is obtained.

  As described above, in the card recognition switch 60, when the card is inserted, after the contact pad 4 of the card 1 contacts the contact part 55 of the contact 50, the operation part 65 is pushed inward by the insertion side end of the card 1. The contact timing of the pair of metal pieces 60A and 60B is set so that the card recognition switch 60 is turned on by being operated. Thus, the card recognition switch 60 is in compliance with the requirement that the switch 60 must be turned on after each contact 50 of the connector comes into contact with all the contact pads 4 of the card 1 when the card is inserted.

  Further, the contact 50 moves the sliding contact portion 53 of the contact 50 to the back side on the fixed contact 41 of each conductor 40 in accordance with the movement of the slide member 71 accompanying the insertion of the card 1 from the state shown in FIG. Are moved to the back side, and the contact state between the contact portion 55 of the contact 50 and the contact pad 4 of the card 1 shown in FIG. The connection between one contact pad 4 and the substrate of the device is maintained, and the state shown in FIG. 14 is obtained.

  Next, FIG. 9 shows a state when the card 1 pushes the slide member 71 of the card ejection mechanism 70 to the most pushed position, and shows the relationship between the contact pad 4 of the card 1 and the contact portion 55 of the contact 50 at that time. As shown in FIG. When the card 1 is further inserted from the state shown in FIG. 8, the card 1 further pushes the slide member 71 to the back side while holding the card recognition switch 60 in the on state by the insertion side end, and the rear stopper portion. 9 is pushed into the most pushed position where it abuts against 21 and stops, resulting in the state shown in FIG.

  Further, the contact 50 moves the sliding contact portion 53 of the contact 50 to the back side on the fixed contact 41 of each conductor 40 in accordance with the movement of the slide member 71 accompanying the insertion of the card 1 from the state shown in FIG. Are moved to the back side, and the contact state between the contact portion 55 of the contact 50 and the contact pad 4 of the card 1 shown in FIG. The connection between one contact pad 4 and the substrate of the device is maintained, and the state shown in FIG. 15 is obtained.

  10 shows a state when the card 1 is mounted, and FIG. 16 shows a relationship between the contact pad 4 of the card 1 and the contact portion 55 of the contact 50 at that time. When the slide member 71 and the card recognition switch 60 are opened except for the pushing force of the operation part 71b of the slide member 71 and the operation part 65 of the card recognition switch 60 by the insertion side end of the card 1 from the state shown in FIG. The member 70 is pushed back from the most pushed position by the biasing force of the coil spring 72, and the card 1 is pushed back from the pushed position to the front side accordingly.

  Then, by the series of operations from the initial position of the slide member 71 described above, the cam pin 74 passes through the forward path 73b from the starting portion 73a of the cam groove 73 and is introduced into the engaging portion 73c on the opposite side to the starting portion 73a. When the cam pin 74 is locked to the locking portion 73c of the cam groove 73, the movement of the slide member 71 to the front side is restricted. As a result, the slide member 71 is held at the card mounting position slightly in front of the most depressed position, and the card 1 engaged and connected to the slide member 71 in the card insertion / removal direction is held at the card mounting position. And the card recognition switch 60 is held in the on state by the insertion side end of the card 1, and the state shown in FIG.

  Further, the contact 50 moves the sliding contact portion 53 of the contact 50 on the fixed contact 41 of each conductor 40 in accordance with the movement of the slide member 71 accompanying the removal of the pushing operation force by the card 1 from the state shown in FIG. The contact 50 moves to the front side while sliding to the front side, and maintains the contact state between the contact portion 55 of the contact 50 and the contact pad 4 of the card 1 shown in FIG. The connection between the contact pad 4 of the card 1 and the board of the device is maintained, and the state shown in FIG. 16 is obtained.

  10 and 16, the card recognition switch 60 is kept on, and the contact pad 4 of the card 1 and the board of the device are electrically connected by the contact 50 and each conductor 40. Thus, the power supply to the card 1 from the device side and the communication between the device and the card 1 are possible.

  Next, FIG. 11 shows a state in which the card 1 has pushed the slide member 71 of the card ejection mechanism 70 into the most pushed position again when the card is removed, and the contact pad 4 of the card 1 and the contact portion of the contact 50 at that time. The relationship with 55 is shown in FIG. When the card 1 is pushed in from the card mounting state shown in FIG. 10, the card 1 moves the slide member 71 from the card mounting position to the back side while holding the card recognition switch 60 by the insertion side end. It pushes in again, it pushes in again to the most pushing position which strikes against the rear stopper part 21, and stops. By the operation of the slide member 71 from the card mounting position to the most pushed-in position, the cam pin 74 is detached from the locking portion 73c of the cam groove 73 and introduced into the return path 73d, and the position holding of the slide member 71 is released. The state shown in FIG.

  Further, the contact 50 moves the sliding contact portion 53 of the contact 50 from the state shown in FIG. 16 to the back side on the fixed contact 41 of each conductor 40 in accordance with the movement of the slide member 71 accompanying the pushing of the card 1. While sliding, it moves to the back side again, and the contact state between the contact portion 55 of the contact 50 and the contact pad 4 of the card 1 shown in FIG. The connection between the one contact pad 4 and the substrate of the device is maintained, and the state shown in FIG. 17 is obtained.

  11 and 17, except for the pushing force of the operation portion 71b of the slide member 71 and the operation portion 65 of the card recognition switch 60 by the insertion side end of the card 1, the slide member 71 and the card recognition switch 60 are removed. Is released, the urging force of the coil spring 72 accumulated during card insertion pushes the insertion side end of the card 1 forward with the operating portion 71a of the slide member 71 and pushes the slide member 70 back from the most pushed position. Then, after returning to the initial position through the state shown in FIGS. 8 to 7, the card 1 is discharged to the state shown in FIG. However, the cam pin 74 passes through the return path 73d of the cam groove 73 and returns to the starting point portion 73a.

  Further, the contact 50 slides the sliding contact portion 53 of the contact 50 forward on the fixed contact 41 of each conductor 40 in accordance with the movement of the slide member 71 for discharging the card 1 from the state shown in FIG. 14 to 13 through the state shown in FIG. 14 to FIG. 13 and return to the initial position, and the contact state between the contact portion 55 of the contact 50 and the contact pad 4 of the card 1 shown in FIG. , The connection between the contact pad 4 of the card 1 and the board of the device by the contacts 50 and the conductors 40 is held, and the state shown in FIG. 12 is obtained.

  Further, the card recognition switch 60 removes the pushing force of the operation unit 65 by the insertion side end of the card 1 as the card 1 is ejected from the state shown in FIG. 11 and FIG. The spring piece 63 of the metal piece 60A and the spring piece 63 of the back metal piece 60B return to the original state before the card recognition switch 60 is turned on, and the metal piece 60A on the near side in the card insertion direction. The card recognition switch 60 is turned off at the time when the contact point 64 is separated from the contact point 64 of the metal piece 60B on the back side (see FIGS. 14, 8, 13, and 7).

  When the card 1 ejected by the card ejection mechanism 70 is pulled by grasping the front end portion of the card 1 protruding from the card insertion slot 11 to the outside of the housing 12 with a finger, the engagement portion 76c of the engagement member 76 is 1 slidably contacts the side surface of the notch 3 and rides on the side surface portion between the notch portion 2 and the notch 3 of the card 1 with bending outward (right side) of the spring piece portion 76b. The engagement connection in the card insertion / removal direction is released, and the card 1 can be removed from the housing 12 through the card insertion slot 11. Then, after the card 1 is removed, the state shown in FIGS.

  As described above, in the card connector 10 according to the embodiment of the present invention, the card 1 discharged by the card discharge mechanism 70, that is, from the contact pad 4 of the card 1 when attached to the housing 12. On the card insertion port side, the contact pad 4 of the card 1 and the substrate are in an electrically conductive connection state, and this state is maintained until the card 1 is removed from the housing 12.

  Therefore, after the card recognition switch 60 is turned off and the device detects the removal of the card 1, the card 1 can be safely shut down within the time until the card 1 is removed from the housing 12.

  This does not include each conductor 40, each contact 50, and contact support arm 71d, but instead is fixed in a horizontal row in the housing and contacts while pressing a plurality of contact pads of the mounted card. The card connector as a comparative example having substantially the same structure as that of the card connector 10 according to the embodiment of the present invention except that the card connector 10 according to the embodiment of the invention is compared with the card connector 10 according to the embodiment of the invention. Can do. That is, the time from when the card recognition switch 60 is turned off and the device detects the removal of the card 1 to when the conductive connection between the contact pad 4 and the substrate of the card 1 is broken is Immediately after the card recognition switch 60 is turned off and the device detects the removal of the card 1, the contact between the contact pad 4 of the card 1 and the contact portion of the contact is cut off, which is extremely short. In the card connector 10 according to the embodiment, the contact between the contact pad 4 of the card 1 and the contact portion 55 of the contact 50 is immediately after the card recognition switch 60 is turned off and the device detects the removal of the card 1. Even in the card 1 discharged by the card discharge mechanism 70 without being cut off, the contact between the contact pad 4 of the card 1 and the contact portion 55 of the contact 50 is maintained. Longer than the card connector of the comparative example, the card recognition switch 60 is turned off, equipment earns time that can be shut down by detecting the removal of the card 1 card 1 safely.

  In the card connector 10 according to the embodiment of the present invention, the pair of metal pieces 60A and 60B forming the contact 50 and the card recognition switch 60 are both integrated with the body 13 of the housing 12 by insert molding. Both of them can be integrally attached to the body 13 of the housing 12 by press-fitting. Further, the card recognition switch 60 is formed by a pair of metal pieces 60A and 60B that are operated to contact and separate by the insertion end of the card 1, but can also be formed by a pair of metal pieces that are operated to contact and separate by the side of the card 1. . Further, the position holding mechanism 75 of the push / push type card discharge mechanism 70 is formed by a heart-shaped cam groove 63 formed integrally with the slide member 71 and a cam pin 74 that supports one end of the body 13. The cam groove 73 can be formed integrally with the body 13, and one end of the cam pin 74 can be supported by the slide member 71. Further, the engaging portion 76c of the card discharge mechanism 70 is provided by attaching the engaging member 76, which is a separate member, to the slide member 71. However, the engaging portion 76c may be formed by a resin leaf spring piece formed integrally with the slide member 71. . Further, although the slide member 71 of the card ejection mechanism 70 is also used as a slide member for moving the contact 50 in accordance with the movement of the card, if the card ejection mechanism 70 is not provided, the card 1 contacts the contact support arm 71d. By directly providing the operation portion 71b for pushing the support arm 71d to the back side and providing a biasing member for returning the contact support arm 71d, the contact support arm 71d is used as a slide member, and the contact 50 is It can be moved according to the movement of the card.

  As mentioned above, although this Embodiment showed one Embodiment of this invention, this invention is not limited to it, Various modifications can be implemented within the range which does not deviate from the summary.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a front view, FIG. 1B is a side view, and FIG. It is a perspective view which shows the external appearance of the card connector which concerns on one embodiment of this invention. It is a perspective view of the state where the cover which shows the internal structure of the card connector concerning one embodiment of the present invention was removed. It is a top view of the state which removed the cover which shows the internal structure of the card connector which concerns on one embodiment of this invention. It is a perspective view which shows the structure of the contact with which the card connector which concerns on one embodiment of this invention is equipped. In the card connector which concerns on one embodiment of this invention, it is a top view which shows a state when a card | curd is inserted in the position which pushes the slide member of a card discharge mechanism. In the card connector which concerns on one embodiment of this invention, it is a top view which shows the state just before a card recognition switch turns on. In the card connector which concerns on one embodiment of this invention, it is a top view which shows a state when a card recognition switch is turned on. In the card connector which concerns on one embodiment of this invention, a card | curd is a top view which shows a state when the card | curd discharge mechanism has pushed the slide member of the card discharge mechanism to the most pushed position. In the card connector which concerns on one embodiment of this invention, it is a top view which shows a state when a card | curd is mounted | worn. In the card connector which concerns on one embodiment of this invention, a card | curd is a top view which shows a state when a card | curd pushes the slide member of a card | curd discharge mechanism again to the most pushed position at the time of card removal. In the card connector which concerns on one embodiment of this invention, it is a bottom view which shows the relationship between the contact pad of a card | curd, and the contact part of a contact when a card | curd is inserted in the position which pushes the slide member of a card discharge mechanism. In the card connector which concerns on one embodiment of this invention, it is a bottom view which shows the relationship between the contact pad of a card | curd just before a card recognition switch turns on, and the contact part of a contact. In the card connector which concerns on one embodiment of this invention, it is a bottom view which shows the relationship between the contact pad of a card | curd, and the contact part of a contact when a card recognition switch is turned on. In the card connector which concerns on one embodiment of this invention, it is a bottom view which shows the relationship between the contact pad of a card | curd, and the contact part of a contact when a card | curd pushes the slide member of a card discharge mechanism to the most pushed position. In the card connector which concerns on one embodiment of this invention, it is a bottom view which shows the relationship between the contact pad of a card | curd when a card | curd is mounted | worn, and the contact part of a contact. The card connector which concerns on one embodiment of this invention WHEREIN: The bottom face which shows the relationship between the contact pad of a card | curd, and the contact part of a contact when a card | curd removes the slide member of a card | curd discharge mechanism to the most pushed position at the time of card removal FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Card 3 Notch 4 Contact pad 10 Card connector 11 Card insertion slot 12 Housing 40 Conductor 42 Terminal part 50 Contact 60 Card recognition switch 60A, 60B Metal piece 70 Card discharge mechanism 71 Slide member 71b Operation part 71d Contact support arm (slide member of slide member) Contact support)
72 Coil spring (biasing member)
73 Heart-shaped cam groove 74 Cam pin 76c Engagement part

Claims (3)

Provided with a housing for detachably mounting cards with contact pads arranged in a row on one main surface, and a card recognition switch for detecting card mounting based on the contact and separation of two metal pieces that respond to card insertion / extraction Card connector,
A plurality of elongated conductors provided at one end with a terminal portion to be connected to the substrate, and a plurality of contacts that are in contact with each other while pressing the contact pad of the card on the card insertion opening side of the contact pad of the card when mounted on the housing A slide member that moves in the housing in accordance with the movement of the card, and fixes the conductor to the inner surface of the housing facing the contact pad of the card along the movement path of the card contact pad, and contacts the conductor to the conductor A card connector characterized in that the contact is supported by a slide member and moved in the housing in accordance with the movement of the card.   A slide member provided on one side of the housing and provided with an operation unit for pushing inward by a card and a contact support unit for supporting a contact, and the slide member is always attached to the card insertion slot side of the housing. A card having a biasing member for biasing, a heart-shaped cam groove provided in one of the housing and the slide member, and a cam pin for supporting one end on the other and moving the cam groove in accordance with the movement of the slide member, When the card is inserted, the card is inserted into the housing while the slide member is held at the card mounting position by pushing the slide member into the back side of the housing and then released. By opening the slide member at the mounting position after pushing it into the back of the housing again, Card connector of claim 1 having a card ejection mechanism of the ride member is returned to the initial position for discharging the card attached to the housing.   3. The card connector according to claim 2, wherein an engaging portion that engages with a notch on the side of the card is provided on the slide member of the card ejection mechanism before the slide member is pushed into the inner side of the housing by the card when the card is inserted. .

Images