JP5362396B2 - Card connector - Google Patents

Description

  The present invention relates to a card connector, and more particularly to a card connector provided with a structure for preventing erroneous insertion of a card.

  2. Description of the Related Art Conventionally, as a card connector having a structure for preventing erroneous insertion of a card, one that locks a slide member that slides together with the card in the card insertion and ejection directions when the card is reversely inserted (for example, Patent Document 1). reference). This card connector has a housing into which a card is inserted, and a cantilever spring for locking the slide of the slide member is formed in the housing. The cantilever spring is cut and raised so as to be inclined in the housing, and the slide of the slide member is locked by engaging the engagement protrusion of the slide member with the engaged portion formed on the free end side. doing.

  In addition, the slide member allows insertion of the card at a release position where the lock with the cantilever spring can be released when the card is correctly inserted and prevents insertion of the card into the release position when the card is erroneously inserted. The part is formed. When the card is normally inserted, the free end of the cantilever spring is lifted by the thickness of the card, the slide member is unlocked, and the card is slid in the insertion direction together with the slide member. On the other hand, when the card is erroneously inserted, the card is prevented from being inserted into the release position, so that the slide lock of the slide member is maintained.

JP 2008-204703 A

  However, in the conventional card connector as described above, since the slide member is unlocked when the free end of the cantilever spring is lifted by the card thickness, the cantilever spring is lifted when the card thickness varies. There was a possibility that the amount of the slide member was changed and the slide member was not properly locked. For example, if the card is too thin, the cantilever spring is not lifted enough to lock the card even though the card is correctly inserted, and the card cannot be mounted. In order to solve this problem, it is conceivable to reduce the dimensional tolerance in the thickness direction of the card, but there is a problem that the manufacturing cost increases.

  The present invention has been made in view of such circumstances, and a card connector that can reliably insert a card when the card is inserted correctly and prevents erroneous insertion of the card even if the thickness of the card varies. The purpose is to provide.

The card connector of the present invention includes a housing that forms a card mounting space, a slide member that slides in the housing together with the card in the card insertion direction, and a sliding member that engages with the slide member from the thickness direction of the housing. A lock portion that locks the slide of the slide member with respect to the housing; and in the card insertion direction, the lock portion and the slide member are separated from each other by the insertion of the card when the card is normally inserted, and the lock is released. allowing insertion of the card into the possible release position, and a insertion position regulating portion for preventing the insertion of the card into the release position when the erroneous insertion of the card, the slide member is in said release position, said A bottom for raising the position of the card in the thickness direction of the housing toward the lock portion Characterized by comprising a lower portion.

  According to this configuration, the card is allowed to be inserted into the release position when the card is correctly inserted, and the card is prevented from being inserted into the release position when the card is erroneously inserted. Further, since the position in the thickness direction of the card housing is raised at the release position when the card is normally inserted, the lock portion can be separated from the slide member to release the lock even if the thickness of the card varies. In particular, by designing the amount of raising the bottom raised portion according to the thickness of the thinnest card, the lock by the lock portion can be reliably released. Thus, even if the dimensional tolerance in the thickness direction of the card varies widely, the lock is released at the time of normal insertion, so that the manufacturing cost of the card can be reduced.

The present invention, in the connector described above cards, when the card is raised by the front Symbol bottom raising portion, wherein the sliding member is characterized in that it is pushed down to the card.

  According to this configuration, since the slide member is pushed down when the card is raised, the lock portion and the slide member can be further easily separated.

  In the card connector according to the present invention, a plurality of types of cards having different thicknesses can be mounted in the mounting space of the housing, and the bottom raised portion side of the slide member has a predetermined thickness or more by the bottom raised portion. An escape portion is provided for suppressing an increase in contact pressure between the slide member and the housing when the card is raised.

  According to this configuration, when a card having a predetermined thickness or more is inserted, an increase in contact pressure between the slide member and the housing is suppressed by the escape portion. be able to.

  In the card connector according to the present invention, a plurality of grooves are formed in the card by a plurality of partitions extending in the insertion direction from the front end side, and a part of the bottom surface of the groove is provided in the housing. A pad that comes into contact with the terminal is provided, and the bottom raised portion comes into contact with a position deviating from the sliding locus between the pad and the terminal on the bottom surface of one of the grooves, thereby raising the card. Features.

  According to this configuration, the card is raised by the bottom raising portion at a position that avoids the sliding locus between the pad and the terminal on the bottom surface of the groove portion, so that the contact between the pad and the terminal is not affected.

  According to the present invention, in the card connector, the housing has a metallic lid, and the lock portion is formed by a part of the lid and is engaged with the lock portion of the slide member. The engaged portion is metallic.

  According to this configuration, since the engagement portion between the lock portion and the slide member is formed of metal, the strength can be increased and the wear resistance can be improved to extend the life.

  Further, the present invention provides the card connector, wherein one corner of the card on the tip side is notched and has an inclined surface, and the insertion position restricting portion is provided on the slide member, An inclined surface capable of guiding the inclined surface of the card, and when the card is correctly inserted, the inclined surface of the card is guided by the inclined surface of the insertion position restricting portion and inserted into the release position, and the card is erroneously inserted. Sometimes, the corner of the card is restricted by the inclined surface of the insertion position restricting portion to prevent insertion into the release position.

  According to this configuration, since the inclined surface of the card is guided to the inclined surface of the insertion position restricting portion only during normal insertion, it is possible to prevent erroneous insertion of the card with a simple configuration.

  Further, the present invention provides the card connector, wherein the lock portion is a cantilever spring having a step portion that comes into contact with the card portion, and the step portion is pushed up on the free end side to lock the card portion. It is characterized by releasing.

  According to this configuration, the lock portion can be formed with a simple configuration.

  According to the present invention, even when the thickness of the card varies, the card can be reliably mounted when the card is inserted correctly, and erroneous insertion of the card can be prevented.

It is a figure which shows embodiment of the connector for cards which concerns on this invention, and is a perspective view of the connector for cards. It is a figure which shows embodiment of the connector for cards which concerns on this invention, and is an exploded perspective view of the connector for cards. It is a figure which shows embodiment of the connector for cards which concerns on this invention, and is a perspective view of a slide member. It is a figure which shows embodiment of the connector for cards which concerns on this invention, and is explanatory drawing at the time of incorrect insertion of the thin card of the connector for cards. It is a figure which shows embodiment of the card connector which concerns on this invention, and is explanatory drawing at the time of incorrect insertion of the thick card | curd of a card connector. It is a figure which shows embodiment of the connector for cards which concerns on this invention, and is explanatory drawing of the lock release structure of the thinnest thin card of the connector for cards. It is a figure which shows embodiment of the connector for cards which concerns on this invention, and is explanatory drawing of the lock release structure of the thickest card of the card connector. It is a figure which shows embodiment of the connector for cards which concerns on this invention, and is the elements on larger scale at the time of the normal insertion of a thick card | curd. It is a figure which shows embodiment of the connector for cards which concerns on this invention, and is a top view of a thin card | curd. It is a figure which shows embodiment of the connector for cards which concerns on this invention, and is a top view of a thick card | curd.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following, a case will be described in which the present invention is applied to a combine-type card connector in which two types of cards, a thin card and a thick card, can be inserted. However, the application target of the card connector according to the present embodiment is not limited to this and can be appropriately changed.

  First, before describing the card connector according to the embodiment of the present invention, a thin card and a thick card to be mounted will be described. 9A and 9B are plan views of the thin card according to the embodiment of the present invention, in which FIG. 9A is a top view and FIG. 9B is a side view. FIG. 10 is a plan view of a thick card according to an embodiment of the present invention, where (a) shows a top view and (b) shows a side view.

  As shown in FIGS. 9A and 9B, the thin card 41 is a so-called multimedia card (MMC) formed with a certain thickness (about 1.4 mm) in the insertion direction, and has a substantially rectangular shape when viewed from above. Is formed. At one corner of the thin card 41, an inclined surface 42 that is notched and inclined at about 45 degrees is formed. The inclined surface 42 is used to identify the insertion direction of the thin card 41, and the side on which the inclined surface 42 is formed is the front end side in the insertion direction, and the opposite side is the rear end side in the insertion direction. The thin card 41 is attached to the card connector 1 only when it is inserted from the tip side where the inclined surface 42 is formed. Further, a plurality of pads 43 (see FIG. 4) that contact the plurality of contact terminals 11 of the card connector 1 are provided on the front end side of the thin card 41.

  As shown in FIGS. 10A and 10B, the thick card 45 is a so-called SD card formed with a thickness (about 2.1 mm) thicker than the thin card 41, and is formed in a substantially rectangular shape when viewed from above. Has been. Further, the thick card 45 is configured based on the specifications of the thin card, and the upper stage is formed in a step shape having the same width as the thin card in a front view. At one corner of the thick card 45, an inclined surface 46 for identifying the insertion direction is formed which is cut out and inclined at about 45 degrees in the same manner as the thin card 41. Further, a groove 47 described later is formed by a plurality of partitions extending in the insertion direction on the leading end side where the inclined surface 46 of the thick card 45 is formed. The groove 47 is provided with a plurality of pads 48 (see FIG. 8) that contact the plurality of contact terminals 11 of the card connector 1.

  Next, the overall configuration of the card connector will be described with reference to FIGS. FIG. 1 is a perspective view of a card connector according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the card connector according to the embodiment of the present invention.

  As shown in FIGS. 1 and 2, the card connector 1 according to the present embodiment is attached to a connector main body 2 having an upper surface and a front surface opened, and an opening on the upper surface of the connector main body 2 to provide a card mounting space. The connector body 2 and the lid body 3 are combined to form a box-like body having the insertion port 4. The insertion slot 4 has a shape complementary to the thick card 45 in a front view. The thick card 45 is inserted into the stepped region of the insertion slot 4, and the thin card 41 is positioned at the upper stage of the insertion slot 4. Inserted into the rectangular area.

  A plurality (13 in this embodiment) of contact terminals 11 are provided on the front surface portion of the back wall 2a of the connector body 2 and the central portion of the bottom wall 2b. Each contact terminal 11 provided on the back wall 2a extends from the front surface portion of the back wall 2a toward the insertion port 4 side, and each contact terminal 11 provided on the bottom wall 2b is a central portion of the bottom wall 2b. Extends toward the back wall 2a.

  A metal leaf spring 12 extending in the insertion direction is provided on one side wall 2c of the connector body 2, and the inserted cards 41 and 45 are urged inward on the plate surface of the leaf spring 12. Bending portions 12a and 12b are formed. The other side wall 2d of the connector main body 2 is provided with a slide member 6 that can slide along the side wall 2d and a coil-shaped discharge spring 7 that expands and contracts as the slide member 6 slides. The discharge spring 7 has one end in contact with the back wall 2a and the other end in contact with the slide member 6, and urges the slide member 6 in the discharge direction.

  The slide member 6 is configured to be slidable in the insertion and discharge directions while being urged by the discharge spring 7. A heart cam groove (not shown) is formed on the front end side of the slide member 6, and the position of the slide member 6 is defined by the heart cam groove and a pin 13 provided on the front end side of the side wall 2d. The pin 13 extends along the side wall 2d, and both ends are bent at a substantially right angle toward the bottom wall 2b. One end of the pin 13 is rotatably supported on the front end side of the side wall 2d, and the other end is slid on the heart cam groove of the slide member 6.

  The heart cam groove has a plurality of steps and slopes and is formed in a heart-shaped annular shape when viewed from above, and slides the other end of the pin 13 in one direction in accordance with the slide of the slide member 6. When the slide member 6 is pushed into the mounting position in the vicinity of the back wall 2a, the other end of the pin 13 is locked to the locking portion of the heart cam groove, and the return of the slide member 6 due to the bias of the discharge spring 7 is restricted. When the slide member 6 is further pushed in from this state, the locked state between the pin 13 and the heart cam groove is released, and the slide member 6 is returned by the bias of the discharge spring 7. Thus, the pin 13 and the heart cam groove have a holding function at the mounting position of the slide member 6.

  Further, the slide member 6 is provided with a metallic leaf spring 14 extending in the insertion direction, and a bent portion 14a for urging the inserted cards 41 and 45 inward on the plate surface of the leaf spring 14. Is formed. On the upper surface of the leaf spring 14, an engagement protrusion 14b that defines the standby position of the slide member 6 is formed to protrude upward. The engagement protrusion 14b engages with an engagement hole 23a, which will be described later, of the lid 3 so that the slide of the slide member 6 with respect to the connector main body 2 is restricted. The detailed configuration of the slide member 6 will be described later.

  The lid 3 is formed by bending a metallic plate material, and pin retainers 21 and 22 for pressing the pin 13 and a lock portion 23 for locking the slide of the slide member 6 are formed in a portion corresponding to the side wall 2d on the upper surface. Has been. The pin holders 21 and 22 are cantilever springs cut and raised toward the bottom wall 2b, pressing the intermediate portion of the pin 13 downward and pressing the other end of the pin 13 against the heart cam groove.

  The lock portion 23 is a cantilever spring cut and raised on the bottom wall 2 b side, and is provided on the free end side with an engagement hole 23 a that engages with the engagement protrusion 14 b of the leaf spring 12, and a stage that contacts the cards 41 and 45. A portion 23b is formed. The engagement hole 23a is configured to be able to lock the slide of the slide member 6 by engaging with the engagement protrusion 14b from above. The step portion 23b bulges toward the bottom wall 2b and is formed so as to be positioned on the insertion locus of the right side portion of the upper surface of the cards 41 and 45.

  When the cards 41 and 45 are inserted, the lock portion 23 is pushed up by the stepped portion 23b coming into contact with the upper surface of the cards 41 and 45, and the engagement protrusion 14b is removed from the engagement hole 23a to release the lock of the slide member 6. Is done. In this case, since the lock portion 23 and the engaging protrusion 14b are metallic, the strength and wear resistance at the time of sliding contact are improved, and the life is extended. Further, the arm portion of the lock portion 23 is formed with a slit 23c in the extending direction, and the spring constant of the lock portion 23 is lowered by the slit 23c.

  With reference to FIG. 3, the detailed structure of the slide member which is the characteristic part of this invention is demonstrated. FIG. 3 is a perspective view of the slide member according to the embodiment of the present invention.

  As shown in FIG. 3, the slide member 6 is formed with a leaf spring mounting portion 31 on which the plate spring 14 is mounted on the upper surface and a discharge spring mounting portion (not shown) on which the other end of the discharge spring 7 is mounted on the lower surface. Has been. The engagement protrusion 14b of the leaf spring 14 is formed perpendicular to the upper surface so that the end surface on the insertion direction side is hooked on the inner peripheral surface of the engagement hole 23a, and the end surface on the discharge direction side is in the engagement hole 23a. It is formed so as to be inclined downward from the upper surface in the discharge direction so that it can be easily restored.

  An insertion position restricting portion 32 that protrudes toward the center of the connector body 2 is formed on the side surface of the slide member 6. The side surface of the insertion position restricting portion 32 is an inclined surface 32a that narrows the width direction of the mounting space toward the rear end of the slide member 6, and is approximately 45 so as to contact the inclined surfaces 42 and 46 of the cards 41 and 45. Inclined at a degree.

  When the cards 41 and 45 are normally inserted while the slide member 6 is locked, the inclined surfaces 42 and 46 on the tip side of the cards 41 and 45 come into contact with the inclined surface 32a of the insertion position restricting portion 32, The cards 41 and 45 are guided to a release position where the lock by the lock portion 23 can be released, that is, a position facing the step portion 23b. On the other hand, when the cards 41 and 45 are erroneously inserted while the slide member 6 is locked, the corners on the rear end side of the cards 41 and 45 come into contact with the inclined surface 32a of the insertion position restricting portion 32 and are released. The insertion of the cards 41, 45 into the position is prevented. In this way, erroneous insertion of the cards 41 and 45 is prevented by the inclined surface 32a of the insertion position restricting portion 32.

  Further, a bottom raising portion 33 is formed so as to protrude from the substantially middle portion of the inclined surface 32a of the insertion position restricting portion 32 to the insertion port 4 side. The bottom raising portion 33 is configured to raise the cards 41 and 45 toward the stepped portion 23b of the lock portion 23 when the cards 41 and 45 reach the release position. It is done.

  The upper surface 33a of the bottom raising portion 33 that faces the stepped portion 23b is inclined so as to descend from the inclined surface 32a of the insertion position restricting portion 32 in the orthogonal direction so that the cards 41 and 45 can ride on during normal insertion. It is configured. When the cards 41 and 45 are correctly inserted and pushed in, the lower surfaces of the cards 41 and 45 are guided to the release position while the lower surfaces of the cards 41 and 45 are in sliding contact with the upper surface 33a of the bottom raising portion 33.

  In this case, the bottom raising amount of the bottom raising portion 33 is designed on the basis of the thinnest dimension of the thin card 41. Even when the thinnest thin card 41 is inserted into the release position, the lock by the lock portion 23 is performed. Is configured to be released. Further, when the cards 41 and 45 are raised to the bottom raising portion 33, the lock portion 23 is pushed upward at the release position, and the slide member 6 is slightly pushed downward. In this way, when the lock portion 23 and the slide member 6 are separated from each other at the release position, the engagement hole 23a is released from the engagement protrusion 14b, and the lock is released.

  Further, the slide member 6 has a relief portion 34 formed on the lower surface so as to decrease in thickness toward the rear end side. The escape portion 34 causes the rear end side to swing up and down with the front end side as a fulcrum. It is configured. With this configuration, when the thick card 45 is inserted, the rear end side of the slide member 6 is pushed down, and the contact pressure between the slide member 6 and the bottom wall 2b is suppressed. Therefore, it is possible to deal with cards with different standards such as the thin card 41 and the thick card 45.

  With reference to FIG. 4 and FIG. 5, the erroneous insertion prevention structure by the card connector will be described. 4A and 4B are explanatory views when a thin card of the card connector according to the embodiment of the present invention is erroneously inserted, wherein FIG. 4A is a top view, and FIG. 4B is a cross section taken along line AA in FIG. The figure is shown. FIGS. 5A and 5B are explanatory diagrams when the thick card of the card connector according to the embodiment of the present invention is erroneously inserted, wherein FIG. 5A is a top view and FIG. 5B is along the BB line of FIG. A cross-sectional view is shown. In FIG. 4A and FIG. 5A, for convenience of explanation, the lid is omitted except for a step portion indicated by a broken line.

  First, the erroneous insertion of the thin card 41 will be described with reference to FIG. In the initial state, since the engagement protrusion 14b of the leaf spring 14 provided on the slide member 6 is engaged with the engagement hole 23a of the lock portion 23, the slide of the slide member 6 is restricted. As shown in FIGS. 4A and 4B, when the thin card 41 is erroneously inserted from this initial state, the corner portion on the rear end side of the thin card 41 enters along the side wall 2d, and the release position is Abutting on the inclined surface 32a of the insertion position restricting portion 32 in front.

  In this case, even if the thin card 41 is inserted with a force larger than the biasing force of the discharge spring 7, the inclined surface 32 a of the insertion position restricting portion 32 prevents the thin card 41 from being inserted into the release position. Therefore, the thin card 41 does not come into contact with the step portion 23b of the lock portion 23, and the slide lock of the slide member 6 is maintained.

  Next, erroneous insertion of the thick card 45 will be described with reference to FIG. As shown in FIGS. 5A and 5B, as in the case of the thin card 41, when the thick card 45 is erroneously inserted from the initial state, the corner on the rear end side of the thick card 45 is the side wall 2d. , And comes into contact with the inclined surface 32a of the insertion position restricting portion 32 before the release position.

  In this case, even if the thick card 45 is inserted with a force larger than the biasing force of the discharge spring 7, the insertion of the thin card 41 into the release position is prevented by the inclined surface 32 a of the insertion position restricting portion 32. Therefore, the thick card 45 does not contact the step portion 23b of the lock portion 23, and the slide lock of the slide member 6 is maintained.

  With reference to FIGS. 6 to 8, the unlocking structure by the card connector and the card mounting operation will be described. 6A and 6B are explanatory diagrams of the unlocking structure of the thinnest thin card of the card connector according to the embodiment of the present invention. FIG. 6A is a top view, and FIG. 6B is a CC line of FIG. FIG. 7A and 7B are explanatory diagrams of the unlocking structure of the thickest card of the card connector according to the embodiment of the present invention, where FIG. 7A is a top view and FIG. 7B is a DD of FIG. Sectional drawing which follows a line, (c) has shown sectional drawing which follows the EE line | wire of (a). FIG. 8 is a partially enlarged view of the thick card when it is normally inserted. In FIG. 6A and FIG. 7A, for convenience of explanation, the lid is omitted except for the step portion indicated by a broken line.

  First, the unlocking structure and mounting operation of the thin card 41 will be described with reference to FIG. In the initial state, since the engagement protrusion 14b of the leaf spring 14 provided on the slide member 6 is engaged with the engagement hole 23a of the lock portion 23, the slide of the slide member 6 is restricted. As shown in FIG. 6A, when the thin card 41 is normally inserted from this initial state, the inclined surface 42 on the distal end side of the thin card 41 comes into contact with the inclined surface 32a of the insertion position restricting portion 32 and is thin. The leading end side of the card 41 is guided to the release position.

  At this time, as shown in FIG. 6B, the front end side of the thin card 41 rides on the upper surface 33 a of the bottom raising portion 33, and the upper surface of the thin card 41 is pressed against the step portion 23 b of the lock portion 23 at the release position. The lock part 23 is pushed upward by the bottom raising amount of the bottom raising part 33 and the thickness of the thin card 41. Thus, since the bottom raising portion 33 is formed with the bottom raising amount assuming the thinnest dimensional tolerance when the thin card 41 is formed, the thickness of the thin card 41 is absorbed and the lock portion 23 is absorbed. Can be pushed up.

  When the lock portion 23 is pushed upward, the engagement hole 23a of the lock portion 23 is disengaged from the engagement protrusion 14b of the plate spring 14 provided in the slide member 6, and the slide lock of the slide member 6 is released. When the thin card 41 is further pushed in against the biasing force of the discharge spring 7 with the slide member 6 unlocked, the slide member 6 is slid together with the thin card 41.

  When the slide member 6 slides to the back wall 2a, the other end of the pin 13 is engaged with the engagement portion of the heart cam groove of the slide member 6, the slide is stopped, and the thin card 41 is held at the mounting position. At this time, the plurality of pads 43 provided on the lower surface of the thin card 41 are brought into contact with the contact terminals 11.

  In a state where the thin card 41 is attached to the card connector 1, the rear end of the thin card 41 protrudes from the insertion port 4. When the rear end of the thin card 41 protruding from the insertion slot 4 is further pressed, the locked state of the other end of the pin 13 and the heart cam groove is released, and the slide member 6 is pushed back by the discharge spring 7 to the initial state. Returned.

  In FIG. 6, the thinnest thin card 41 is described as an example, but the present invention is not limited to this configuration. For example, when the thickest thin card 41 is inserted correctly, the lock portion 23 is pushed up by the thickness of the thin card 41 and the slide member 6 is slightly pushed down by the reaction force from the thin card 41 to lock. Canceled.

  Next, the unlocking structure and mounting operation of the thick card 45 will be described with reference to FIG. As shown in FIG. 7A, as in the case of the thin card 41, when the thick card 45 is normally inserted from the initial state, the inclined surface 46 on the leading end side of the thick card 45 is the insertion position restricting portion 32. Abutting against the inclined surface 32a, the leading end side of the thick card 45 is guided to the release position.

  As shown in FIG. 8, when the leading end side of the thick card 45 is guided to the release position, the lower surface of the thick card 45 has a groove 47 corresponding to the inclined surface 46 among the plurality of grooves 47 extending in the insertion direction. Is raised to the bottom raising portion 33. At this time, the raised portion 33 raises the position deviated from the sliding locus between the pad 48 provided on the bottom surface of the groove portion 47 and the contact terminal 11, and obstructs the contact between the pad 48 and the contact terminal 11. There is nothing. The groove 47 is formed with a groove width such that the pad 48 avoids contact with anything other than the connector terminal 11.

  Then, as shown in FIG. 7B, the groove portion 47 on the leading end side of the thick card 45 rides on the upper surface 33a of the bottom raising portion 33, and the upper surface of the thick card 45 at the release position becomes the step 23b of the lock portion 23. Pressed. The lock portion 23 is pushed upward greatly by the bottom raising amount of the bottom raising portion 33 and the thickness of the thick card 45. At this time, as shown in FIG. 7C, the rear end side of the slide member 6 is pushed down to the bottom wall 2b side with the front end side as a fulcrum by the escape portion 34 formed on the lower surface. Thereby, it is suppressed that the slide member 6 is strongly pressed against the bottom wall 2b.

  When the lock portion 23 is pushed upward and the slide member 6 is pushed downward, the engagement hole 23 a of the lock portion 23 is disengaged from the engagement protrusion 14 b of the leaf spring 14 provided in the slide member 6. The slide lock is released. When the thick card 45 is further pushed in against the urging force of the discharge spring 7 with the slide member 6 unlocked, the slide member 6 is slid together with the thick card 45.

  Then, when the slide member 6 slides to the back wall 2a, the slide member 6 is mounted in the same manner as when the thin card 41 is mounted. By further pushing from the mounting position, the slide member 6 is pushed back to the discharge spring 7 and returned to the initial state.

  As described above, according to the card connector 1 according to the present embodiment, the cards 41 and 45 are allowed to be inserted into the release position when the cards 41 and 45 are correctly inserted, and the cards 41 and 45 are erroneously inserted when the cards 41 and 45 are erroneously inserted. Since the insertion of 41 and 45 into the release position is prevented, the erroneous insertion of the cards 41 and 45 is prevented. Moreover, since the position in the thickness direction of the cards 41 and 45 is raised at the release position when the cards 41 and 45 are normally inserted, even if the thickness of the cards 41 and 45 varies, the engagement hole 23a of the lock portion 23 is slid. The lock can be released by separating from the engagement protrusion 14b of the leaf spring 14 provided on the member 6. In particular, by designing the bottom raising amount of the bottom raising portion 33 in accordance with the thickness of the thinnest thin card 41, the lock by the lock portion 23 can be reliably released. Thus, even if the dimensional tolerance in the thickness direction of the cards 41 and 45 varies widely, the lock is released at the time of normal insertion, so that the manufacturing cost of the cards 41 and 45 can be reduced.

  In the above-described embodiment, the thin card is described as a multimedia card, and the thick card is described as an SD card. However, the present invention is not limited to this configuration. The present invention can be applied to cards of a plurality of standards having different thicknesses. For example, the invention can also be applied to a half-size reduced size multimedia card (RS-MMC) instead of the multimedia card. In this case, a metal adapter is attached to the card and inserted, but since the erroneous insertion is prevented by the present invention, the metal adapter is prevented from coming into contact with the contact terminal and short-circuiting due to the erroneous insertion. The

  Further, in the above-described embodiment, the lock portion is provided on the lid, but the present invention is not limited to this configuration, and the lock portion may be provided on the bottom wall of the connector body.

  In the above-described embodiment, the bottom raised portion is provided on the slide member. However, the present invention is not limited to this configuration. Any configuration is possible as long as the card can be raised at the release position. For example, a bottom raised portion may be formed on the bottom wall of the connector body.

  In the above-described embodiment, the escape portion is formed on the slide member. However, the present invention is not limited to this configuration. Any configuration that suppresses an increase in contact pressure between the slide member and the bottom surface of the connector main body when a card having a predetermined thickness or more is inserted may be used. It is good also as a structure which forms a groove | channel in the bottom face.

  In the above-described embodiment, the card insertion position is regulated by the inclined surface of the insertion position regulating part provided on the slide member. However, the present invention is not limited to this configuration. Any configuration that allows insertion of a card into the release position when the card is correctly inserted and prevents insertion of the card into the release position when the card is erroneously inserted may be used. For example, it is good also as a structure which forms a curved surface instead of an inclined surface in an insertion position control part.

  In the above-described embodiment, the combine type configuration is applicable to two types of cards, a thin card and a thick card. However, the present invention is not limited to this configuration. Only one type of card may be supported, or three or more types of cards may be supported.

  In the above-described embodiment, the lock portion and the engagement protrusion of the leaf spring are made of metal, but the present invention is not limited to this configuration. Any material that can reduce friction caused by sliding contact between the engagement hole of the lock portion and the engagement protrusion may be used, and the lock portion and the leaf spring may be formed of other friction-resistant materials.

  Further, in the above-described embodiment, the lock portion is configured by a cantilever spring, but is not limited to this configuration. Any configuration may be used as long as it is pushed up by the thickness of the card. In the above-described embodiment, the lock portion has a stepped portion. However, the lock portion may have a stepped portion as long as it is pushed up by the card at the release position.

  The embodiment disclosed this time is illustrative in all respects and is not limited to this embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of the claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.

  As described above, the present invention has the effect that even if the thickness of the card varies, the card can be securely inserted when the card is correctly inserted, and erroneous insertion of the card can be prevented. This is useful for a card connector having an erroneous insertion prevention structure.

1 Card connector 2 Connector body (housing)
3 Lid (housing)
4 Insertion slot 6 Slide member 7 Ejection spring 11 Contact terminal (terminal)
DESCRIPTION OF SYMBOLS 14 Leaf spring 14b Engagement protrusion 23 Lock part 23a Engagement hole 23b Step part 32 Insertion position control part 32a Inclined surface 33 Bottom raising part 34 Escape part 41 Thin card (card)
45 Thick card (card)
47 Groove

Claims (7)

A housing forming a card mounting space;
A slide member that slides in the housing together with the card in the insertion direction of the card;
A lock portion that engages the slide member from the thickness direction of the housing, and locks the slide of the slide member relative to the housing;
In the card insertion direction, when the card is correctly inserted, the card is inserted into a release position where the lock portion and the slide member are separated by inserting the card to release the lock. and a insertion position regulating portion for preventing the insertion of the card into the release position during insertion,
The card connector according to claim 1, wherein the slide member includes a bottom raised portion that raises the position of the card in the thickness direction of the housing toward the lock portion at the release position. When the card is raised by the front Symbol bottom raising portion, the card connector of claim 1, wherein the sliding member is characterized in that it is pushed down to the card. The mounting space of the housing is capable of mounting a plurality of types of cards having different thicknesses,
On the bottom raising portion side of the slide member, a relief portion is provided for suppressing an increase in contact pressure between the slide member and the housing when a card having a predetermined thickness or more is raised by the bottom raising portion. The card connector according to claim 1, wherein the card connector is a card connector. The card is formed with a plurality of grooves by a plurality of partitions extending in the insertion direction from the front end side,
A pad that contacts a terminal provided in the housing is provided on a part of the bottom surface of the groove,
4. The card is raised by the bottom raising portion coming into contact with a position deviating from a sliding locus between the pad and the terminal on the bottom surface of one of the groove portions. The card connector according to any one of the above. The housing has a metallic lid,
The lock part is formed by a part of the lid,
The card connector according to any one of claims 1 to 4, wherein the engaged portion engaged with the lock portion of the slide member is metallic. One corner of the front end side of the card is notched and has an inclined surface,
The insertion position restricting portion is provided on the slide member, and has an inclined surface capable of guiding the inclined surface of the card,
When the card is correctly inserted, the inclined surface of the card is guided by the inclined surface of the insertion position restricting portion and inserted into the release position, and when the card is erroneously inserted, the corner portion of the card is inclined to the insertion position restricting portion. The card connector according to claim 1, wherein the card connector is restricted by a surface and is prevented from being inserted into the release position.   The lock portion is a cantilever spring having a step portion that contacts the card portion, and the lock is released when the step portion is pushed up by the card on a free end side. The card connector according to claim 6.

Images