JP4304140B2 - Card connector - Google Patents

Description

  The present invention relates to a card connector that can be shared by two types of memory cards having different sizes among card connectors for electrically connecting a memory card and substrates of various electronic devices.

Among the various card connectors, a card connector that can be used for two types of cards with different lengths, a short card contact and a long card contact along the card insertion direction in a housing in which these two types of cards can be inserted. Since the front and back sides are provided in two rows in the front and rear, one of the following methods is employed to prevent the long card from interfering with the short card contact. One is to make the contact position of the short card contact variable and lower the contact position of the short card contact when a long card is inserted. One is a method in which the card support height in the housing is variable and the card support height is raised to a position higher than the contact position of the short card contact when a long card is inserted. Both of these methods utilize the difference in the cross-sectional shape (width and thickness) of the short card and the long card. (For example, refer to “Patent Document 1”.)
JP 2003-229206 A

  The problem to be solved by the present invention is, for example, the length of a miniSD card (width 20 mm, length 21.5 mm, thickness 1.4 mm) and memory stick Duo (width 20 mm, length 31 mm, thickness 1.6 mm). Although two types of cards with different widths and thicknesses (cross-sectional shapes) are different, it is impossible to prevent a long card from interfering with a short card contact. It cannot be realized.

  The means of the present invention for solving the problem is a method in which a housing into which two types of cards having substantially the same width and thickness but different lengths and tip shapes are inserted is brought into contact with and electrically connected to the electrodes of the short card. A second contact to be electrically connected by contacting one contact and an electrode of a long card is provided in two rows in the front and back sides along the card insertion direction, and for ejecting that slides in the card insertion / removal direction. In a card connector having a slider, the slider is formed in a U-shape that opens toward the card insertion slot of the housing, a card receiving space for receiving the card is formed inside the slider, and the card receiving space is formed at the left and right ends of the slider. When the short card is inserted, it is held at the first slide position, and when the long card is inserted, the first A pair of card select members that slide to the second slide position on the outer side in the card width direction from the ride position are provided opposite to each other, and the left and right end portions can be raised and lowered between the inner bottom surface of the housing and the left and right end portions of the slider. A shutter member that is stretched on the bottom of the housing so as to cross over the first contact, and the shutter member is constantly urged to a raised position where the contact of the first contact is at a height that contacts the short card electrode. The left and right card select members slide from the first slide position to the second slide position when a long card is inserted, and slide through the left and right ends of the shutter member via the inclined sliding contact surface. The shutter member is held in a lowered position against the urging force of the elastic body, and the shutter member prevents the long card from interfering with the first contact. Characterized in that it held pushed that height.

  According to the present invention, although the lengths are different, even two types of cards having substantially the same width and thickness can be shortened by operating the card selection member by utilizing the difference in the tip shape of both cards. Since it is possible to prevent a long card from interfering with the first contact for the card, a card connector that can be used for such two types of cards can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of the card connector according to the embodiment of the present invention with the cover removed, and FIG. 2 is a plan view of the card connector of FIG. This connector 1 is used for two types of memory cards having substantially the same width and thickness (cross-sectional shape), but different lengths and tip shapes. FIGS. 3 to 6 show the use of a short card 2 which is one of the memory cards. FIG. 7 to FIG. 10 show the use state of the long card 3 which is the other memory card. 3 to 6, as an example of the short card 2, the left end corner of the tip in the normal insertion posture is cut into a substantially rectangular shape with two right angles, and only the upper corner of the right end is also a right angle. The miniSD card (width: 20mm, length: 21.5mm, thickness: 1.4mm) is shown on the two sides. Figures 7 to 10 show the regular insertion posture and the left corner of the tip is an arc-shaped surface that bulges outward. A memory stick Duo (width 20 mm, length 31 mm, thickness 1.6 mm) is shown as an example of a long card 3 that has been dropped into a substantially triangular shape. Accordingly, the lateral width of the front end of the short card 2 is reduced by the left corner drop portion 2a, but the lateral width of the front end portion of the long card 3 is as small as the short card 2 even if the left corner drop portion 3a is present. is not.

  As shown in FIGS. 1 and 2, the body 4 is made of an insulating material such as synthetic resin, has a bottom plate 4a, left and right side walls 4b and 4c, and a rear side wall 4d, and is made of sheet metal (conductive) and has a top plate and left and right side plates. A thin rectangular box-shaped housing of the connector 1 is constituted by a cover (not shown). Further, the front side surface of the body 4 serving as the front side surface of the housing is opened at the left and right end portions leaving the narrow side walls 4e and 4f, the width is slightly larger than the width of both the cards 2 and 3, and the height is high. The slot 5 is a card insertion slot that is slightly larger than the thickness of the long card 3 and can be inserted into either the short card 2 or the long card 3. The slot 5 has an opening formed at a position higher than the body bottom plate 4a by a predetermined dimension.

  As shown in FIGS. 1 to 10, a plurality of first contacts 6 for a short card and a plurality of second contacts 7 for a long card are provided inside the slot 5, that is, inside the body 4 which is the inside of the housing. Two rows are provided on the front and back sides along the card insertion / removal direction. Both contacts 6 and 7 are formed of elongated conductive metal terminals, and the first contact 6 is integrally attached to the front end of the body bottom plate 4a by insert molding or press fitting into a contact mounting groove (not shown) as shown. The rear half of the card 2 is protruded to the front upper surface side of the body bottom plate 4a so as to be elastically displaceable up and down and arranged side by side on the inner front of the body 4, and the lower surface of the front end of the short card 2 at the rear end. A contact 6a is formed for contacting and electrically connecting a plurality of electrodes (not shown) arranged side by side on the side. The front end is exposed from the notch 8 formed at the front end of the body bottom plate 4a to the outer bottom surface of the body 4 in a substantially flush state, and is electrically connected to the board pattern by soldering. The contact 6b is formed. On the other hand, the second contact 7 is attached integrally to the rear end of the body bottom plate 4a by insert molding or press-fitting into a contact mounting groove (not shown) as shown in the figure, and the front half rises forward so as to be elastically displaceable up and down. A plurality of electrodes (not shown) that are inclinedly protruded from the rear upper surface side of the body bottom plate 4a, are arranged side by side on the inner rear side of the body 4, and are arranged side by side on the lower surface side of the front end of the long card 3 at the front end. A contact 7a is formed for electrical contact with the contact. Further, the rear end is exposed from the rear end of the body bottom plate 4a to the outside of the body 4 in a substantially flush state with the outer bottom surface, and is externally connected to the surface of the board pattern by soldering to an external contact 7b for surface mounting. Is formed. Further, the first contact 6 and the second contact 7 are formed so that the height positions of the respective contacts 6a and 7a are substantially the same in a free state.

  A push-in / push-out type card ejection mechanism 9 is provided inside the body 4. The eject mechanism 9 includes a slider 10, an eject spring 11, and a lock mechanism 12.

  The slider 10 is made of a synthetic resin material and is formed in a U-shape that opens forward. The slider 10 has a card receiving space 10d surrounded by left and right side pieces 10a and 10b and a rear side piece 10c. It is configured in a boulder shape that is slidably fitted in the front-rear direction and receives one short card 2 or long card 3 inserted into the slot 5 in the card receiving space 10d. Further, a card support bottom surface 10e having a height substantially the same as the lower edge height of the slot 5 is integrally formed at the bottom of the rear half of the card receiving space 10d, and a rear piece that rises at a right angle from the rear end of the card support bottom surface 10e. The inner surface of 10c becomes an engagement surface 10f that receives the insertion end surface when the card 3 is inserted. Further, in order to prevent the slider 10 from interfering with the front half of the second contact 7, the slider 10 has a plurality of contact insertion holes 10g extending through the rear piece 10c to the vicinity of the front end of the card support bottom surface 10e. It is formed side by side.

  The eject spring 11 is composed of a compression coil spring inserted between the body 4 and the slider 10 and constantly urges the slider 10 in the eject direction (forward). Further, a spring expansion / contraction guide 4g for supporting the eject spring 11 on the outer peripheral surface protrudes forward from one end portion of the body rear side wall 4d, and the rear center portion of the side piece 10a on one side of the slider 10 is provided. Is formed with a bottomed cylindrical spring receiving portion for accommodating the entire length of the eject spring 11 and the spring expansion / contraction guide 4g, and the ejection spring 11 is expanded and contracted between the rear body side wall 4d and the bottom surface of the spring receiving portion. By causing the slider 10 to move, the front end of the left and right side pieces 10a, 10b abuts against the left and right front side walls 4e, 4f (the positions shown in FIGS. 1, 2, 3, 5, 7, and 9). The rear piece 10c is configured to slide between the most pushed-in positions where it abuts against the body rear side wall 4d.

  The locking mechanism 12 comprises a cam groove 13 formed on the rear upper surface of the side piece 10b on the other side of the slider 10 and an elongated metal rod bent at both ends at right angles in one direction. And a cam pin 14 that is fitted to and supported by a bearing portion 4h formed at the other end of the rear side wall 4d of the body, and a bent portion of the front end is slidably fitted into the cam groove 13. . The cam groove 13 is formed in a heart shape that connects the starting portion 13a at the top of the rear end and the engaging portion 13c of the central recess at the front end by the forward path 13b and the return path 13d, and is located between the eject position of the slider 10 and the most pushed position. And the front end bent portion of the cam pin 14 is locked to the locking portion 13c by a push-in operation that pushes the slider 10 from the eject position to the most pushed position. The card is locked at the card mounting position common to the long card 3 (the position shown in FIGS. 6 and 10) (sliding forward of the slider 10 is restricted), and the slider 10 is pushed from the card mounting position to the most pushed position. By disengaging the bent portion of the front end of the cam pin 14 from the locking portion 13c by the push-out operation, the slider 10 is moved to the eject position. It is configured so as to brought back.

  A card selection mechanism 15 is provided inside the body 4. The card selection mechanism 15 includes a pair of left and right card selection members 16 and 17 and return springs 18 and 19.

  The left and right card select members 16 and 17 are made of a synthetic resin material, and the left and right receiving grooves 10h and 10i formed in the front of the left and right side pieces 10a and 10b of the slider 10 with the card receiving space 10d interposed therebetween are arranged in the card width direction. The slider 10 is slidably fitted, and is provided in an opposing shape with the card receiving space 10d sandwiched between the front portions of the left and right side pieces 10a and 10b of the slider 10. The left and right card select members 16 and 17 are formed in a stepped shape, and are always directed toward the inside of the slider 10 by return springs 18 and 19 inserted between the wide outer portion and the groove bottoms of the receiving grooves 10h and 10i. The stepped surfaces of the left and right card select members 16 and 17 abut against the stopper formed at the opening edge of the receiving grooves 10h and 10i with respect to the card receiving space 10d, and the narrow inner portion receives the card from the receiving grooves 10h and 10i. A first slide position (position shown in FIGS. 1 to 6) that protrudes oppositely to the left and right sides of the card receiving slot in the space 10d and a narrow inner portion from the card receiving space 10d to the receiving grooves 10h and 10i. It is configured to be slid in the card width direction between the second slide positions (the positions shown in FIGS. 7 to 10) to be retracted. 1 to 10 show the return springs 18 and 19 made of coil springs, these may be leaf springs.

  Further, the left card select member 16 has a corner dropping region on the left side of the front end portion of the short card 2 in which the inner portion protruding into the card receiving space 10d at the first sliding position is inserted into the card receiving space 10d from the slot 5 in the normal insertion posture. Is formed in a shape that does not fit in the corner dropping region on the left side of the tip of the long card 3 inserted in the normal insertion posture, and the inner side surface of the long card 3 is engaged with the short card 2 from above. A downward-facing engagement surface 16a and a forward-facing engagement surface 16b that receives the stepped surface of the left corner drop portion 2a of the short card 2 are provided. The right card select member 17 has an inner portion protruding into the card receiving space 10d at the first sliding position fitted into a corner dropping region on the right side of the front end of the short card 2 inserted from the slot 5 into the card receiving space 10d in the normal insertion posture. The lower surface of the inner portion is a downward engaging surface 17a that engages with the short card 2 from above, and the stepped surface of the corner drop portion 2b on the right side of the front end portion of the card 2 with the inner rear surface is short. The engagement surface 17b faces forward. When the short card 2 is inserted, the left and right card select members 16 and 17 are held in the first sliding position by fitting the left and right corner drop areas at the front end portion thereof, and when the long card 3 is inserted, the short card 2 Since the tip shape is different and there is no corner drop area in which the left and right card select members 16 and 17 can be fitted, the left and right card select members 16 and 17 are moved from the first slide position to the second position due to the lateral width of the long card 3, respectively. It is configured to slide to the slide position.

  A shutter member 20 and an elastic body 21 for changing the height position of the contact 6 a of the first contact 6 are provided inside the body 4.

  The shutter member 20 is made of a synthetic resin material, and the left and right ends thereof are connected to the body bottom plate 4a and the left and right ends of the slider 10 via bottom grooves 10j and 10k formed on the front bottom surfaces of the left and right side pieces 10a and 10b of the slider 10. The first contact 6 is formed in a flat plate extending on the bottom of the inner front part of the body 4 so as to be able to move up and down and cross over the front half of each first contact 6. On the lower surface of the rear end facing the portion, a contact push-down surface 20a having a rearward rising slope for pushing down the latter half middle portion of each first contact 6 is provided side by side. In addition, the shutter member 20 is engaged with elevating guides 4i and 4j formed upwardly projecting from the body bottom plate 4a via the locking grooves 20b and 20c, thereby restricting horizontal movement along the body bottom plate 4a. However, it is stretched on the bottom of the inner front portion of the body 4 in a state where only movement in the vertical direction is allowed. The bottom grooves 10j and 10k are formed in a range that allows sliding between the eject position of the slider 10 and the most pushed position, and the length of the shutter member 20 in the card insertion / extraction direction is such that the slider 10 slides to the most pushed position. Even so, the left and right side pieces 10 a and 10 b are formed to have a length that overlaps with the left and right end portions of the shutter member 20.

  The elastic body 21 includes, for example, a compression coil spring shown in FIGS. 4 and 8 and a plate spring shown in FIGS. 5 and 9 inserted between the shutter member 20 and the body bottom plate 4a. The left and right end portions of 20 are always urged upward to move the shutter member 20 upward. When the shutter member 20 rises to the highest rise position (position shown in FIGS. 4 and 5) where the upper surfaces of the left and right end portions abut against the top surfaces of the bottom grooves 10 j and 10 k of the slider 10, the upper surface of the intermediate portion becomes the lower edge of the slot 5. The card supporting bottom surface 10e of the slider 10 is substantially the same height as the card supporting bottom surface 10e, and forms a card supporting bottom surface that is substantially the same height as the card supporting bottom surface 10e at the bottom of the second half from the lower edge of the slot 5 to the front half bottom of the card receiving space 10d in the slider 10. At the same time, the lower half portion of each first contact 6 is released from the contact push-down surface 20a, the latter half portion of each first contact 6 returns to a substantially free state, and the contact 6a at the rear end receives the card of the slider 10. The card support bottom surface (the upper surface of the left and right middle portions of the shutter member 20) and the card support bottom surface 1 of the bottom half in the space 10d. Protrude from between the e in the card receiving space 10d, it becomes the height capable of contacting with a short card 2 electrodes.

  The left and right card select members 16 and 17 and the shutter member 20 are directed downward in the card thickness direction in the card width direction from the first slide position to the second slide position in the left and right card select members 16 and 17. Are provided with inclined sliding contact surfaces 22a and 22b, which are flat cams for converting the linear motion into the left and right ends of the shutter member 20.

  One sliding contact surface 22a is formed on the lower surface of the outer end of the left and right card select members 16 and 17 by diagonally dropping the corners formed by the outer surfaces and the lower surfaces of the left and right card select members 16 and 17. . The other slidable contact surface 22b has a corner portion formed by the upper surface and the inner surface of the thick portions 20d and 20e formed so as to partially bulge the left and right ends of the shutter member 20 upward. It is formed at the upper inner end portions of the left and right thick portions 20d and 20e of the shutter member 20 by obliquely dropping the same angle with the same inclination angle as the contact surface 22a. Further, the inner portions of the housing grooves 10h and 10i are communicated with the bottom grooves 10j and 10k formed on the lower side thereof through the communication holes 10m and 10n, and when the shutter member 20 is raised to the highest position, The upper portions of the left and right thick portions 20d, 20e protrude from the communication holes 10m, 10n to the inner portions of the receiving grooves 10h, 10i, and the left and right card select members 16, 17 slide from the first slide position to the second slide position. Accordingly, one slidable contact surface 22a slidably contacts the other slidable contact surface 22b. Thus, the shutter member 20 is configured to move downward. The left and right card select members 16 and 17 are moved to the left and right thick portions 20d and 20e at the second slide position, and the lowermost position where the lower surface abuts the body bottom plate 4a (the position shown in FIGS. 8 and 9). Hold down on. When the shutter member 20 is lowered to the lowest position, the upper surface of the intermediate portion becomes lower than the lower edge of the slot 5 and the card support bottom surface 10e of the slider 10, and the contact push-down surface 20a forces the latter half intermediate portion of each first contact 6. The rear end contact 6a is forcibly pushed down to a height that is lower than the lower edge of the slot 5 and the card support bottom surface 10e of the slider 10 and prevents the long card 3 from interfering.

  The bottom grooves 10j and 10k are formed so that the slider 10 can slide between the ejected position and the most pushed-in position without interfering with the thick portions 20d and 20e even with respect to the shutter member 20 raised to the highest position. At the same time, the length of the sliding contact surfaces 22a and 22b in the card insertion / removal direction is such that the front portion of one sliding contact surface 22a and the rear portion of the other sliding contact surface 22b slide even when the slider 10 slides to the most pushed position. The length is in contact.

  The card insertion guide surfaces 16c and 17c are formed at the corners of the front portions of the inner side surfaces of the left and right card selection members 16 and 17 facing each other across the card receiving space 10d of the slider 10 by obliquely dropping the portions. .

  Next, the operation of the card connector 1 will be described. As shown in FIGS. 1 and 2, when the card is not inserted into the connector 1, the card ejecting mechanism 9 has the slider 10 held at the ejecting position by the urging force of the ejecting spring 11 to connect the card receiving space 10d to the slot 5 in communication. In this state, the bent portion of the front end of the cam pin 14 is inserted into the starting portion 13 a of the cam groove 13. In the card select mechanism 15, the left and right card select members 16, 17 are held at the first slide position by the biasing forces of the return springs 18, 19, respectively, and the inner portions of the left and right card select members 16, 17 are the receiving grooves 10h, 10i. To the left and right sides of the card receiving slot in the card receiving space 10d. Accordingly, as shown in FIG. 5, the shutter member 20 is lifted and held at the highest lifted position by the urging force of the elastic body 21, and accordingly, the lowering of the second half of each first contact 6 by the contact pressing surface 20 a is released. The contact 6a of each first contact 6 is substantially the same height as the contact 7a of each second contact 7, and is between the card support bottom surface at the bottom half of the card receiving space 10d of the slider 10 and the card support bottom surface 10e at the bottom half. Project into the card receiving space 10d.

  3 and 4, when the short card 2 is inserted into the slot 5 in the normal insertion posture, the inner portions of the left and right card select members 16 and 17 are in the corner drop regions on the left and right sides of the front end portion of the card 2. Since the mating is performed, the relative position between the slider 10 and the left and right card select members 16 and 17 remains the same, that is, while the left and right card select members 16 and 17 are held at the first slide position, the leading end of the card 2 is the slider. 10 is inserted into the card receiving opening of the card receiving space 10d. As a result, the card 2 is restricted to a height at which the lower surface of the card 2 is in sliding contact with the lower edge of the slot 5 and the shutter member 10 by the downward engaging surfaces 16a and 17a of the left and right card select members 16 and 17. The insertion of the slider 10 into the card receiving space 10d from the left and right card select members 16, 17 is restricted by the forward engaging surfaces 16b, 17b of the select members 16, 17, and the card ejecting mechanism 9 is pushed by the card 2. Allows in / push-out operation. That is, when the card 2 is pushed in from the state shown in FIGS. 3 and 4, the forward engaging surfaces 16 b and 17 b of the card select members 16 and 17 are pressed backward by the card 2, and the slider 10 and the left and right card select members 16 and 16 are pressed. 17 moves integrally following the pushing of the card 2 via the left and right card select members 16, 17, and is pushed from the ejecting position toward the back of the body 4 against the biasing force of the ejecting spring 11, The side piece 10c moves to the most pushed position where it hits the body rear side wall 4d. At this time, when the card 2 is released, the slider 10 and the left and right card select members 16 and 17 are integrally pushed back from the most pushed position in the eject direction by the urging force of the eject spring 11. By a series of operations from the eject position of the slider 10, the front end bent portion of the cam pin 14 is introduced and locked to the locking portion 13c from the starting portion 13a of the cam groove 13 through the forward path 13b, and as shown in FIG. Movement in the eject direction is restricted at the card mounting position slightly before the most depressed position, and the slider 10 is locked to the body 4 at the card mounting position. As a result, the electrodes on the lower surface of the front end of the card 2 fitted in the front half of the card receiving space 10d of the slider 10 ride on and contact the contacts 6a of the first contacts 6 to be electrically connected. It becomes a wearing state.

  In addition, when the card 2 is pushed in with the card mounted, the engaging surfaces 16b and 17b are pressed backward by the card 2, and the slider 10 and the left and right card select members 16 and 17 are integrally biased by the eject spring 11. Against this, the card is moved again from the card insertion position to the most pushed position. By this operation, the bent portion of the front end of the cam pin 14 is released from the locking portion 13c of the cam groove 13 and introduced into the return path 13d, and the movement restriction of the slider 10 in the ejection direction is released (the lock of the slider 10 is released). ). At this time, by releasing the pushing of the card 2, the slider 10 and the left and right card selecting members 16, 17 are integrally pushed back from the most pushed position to the ejecting direction by the urging force of the eject spring 11, and returned to the ejecting position. As shown in FIG. 3, the card 2 is ejected and held at the eject position of the slot 5. The card 2 ejected to the ejection position of the slot 5 can be removed from the slot 5 by picking and pulling the end protruding from the slot 5 with a finger. As shown in FIG. 1, the connector 1 is not inserted into the card. It becomes a state.

  On the other hand, as shown in FIGS. 7 and 8, the corner drop portion 3a on the left end of the long card 3 is not shaped to reduce the lateral width of the card tip, unlike the corner drop portion 2a on the left end of the short card 2. The inner side of the left card select member 16 does not fit into the corner drop area on the left side of the front end of the card 3. Further, the long card 3 is not cut off at the right upper edge corner of the tip portion like the short card 2, and there is no corner drop region where the inner portion of the right card selector member 17 is fitted. 3 is inserted into the slot 5 in the normal insertion posture, the leading end portion of the long card 3 pushes the card select members 16 and 17 outward by the card width, and the card receiving opening portion of the card receiving space 10d in the slider 10 Fit into. At this time, the card select members 16 and 17 move from the first slide position to the second slide position against the biasing force of the return springs 18 and 19, respectively. The left and right card select members 16 and 17 push down the left and right thick portions 20d and 20e of the shutter member 20 through the sliding contact surfaces 22a and 22b as the slide from the first slide position to the second slide position occurs. Riding on the top, the shutter member 20 is pushed down against the urging force of the elastic body 21 and held at the lowest position. As a result, as shown in FIG. 9, the contact pressing surface 20 a of the sitter member 20 forcibly presses the rear half of each first contact 6, and the rear end contact 6 a is supported by the lower edge of the slot 5 and the card support of the slider 10. Since the card 3 is forced down to a height that is lower than the bottom surface 10e and prevents the long card 3 from interfering, the card 3 passes above without interfering with the contact 6a of the first contact 6, and the card receiving space 10d It rides on the card support bottom surface 10e formed at the bottom of the second half, and is finally inserted to the innermost part of the card receiving space 10d where the insertion end surface of the card 3 abuts against the forward engaging surface 10f of the rear piece 10c of the slider 10. The push-in / push-out operation of the card eject mechanism 9 by the card 3 is enabled. That is, when the card 3 is pushed in from the state shown in FIG. 7, the forward-facing engagement surface 10f of the rear piece 10c in the slider 10 is pressed rearward at the insertion end of the card 3, and the slider 10 and the left and right card select members 16, 17 integrally moves following the pushing of the card 3 and is pushed from the ejecting position toward the back side of the body 4 against the urging force of the ejecting spring 11, and the rear piece 10c of the slider 10 abuts against the body rear side wall 4d. Move to the most pushed position. At this point, when the card 3 is released, the slider 10 and the left and right card select members 16 and 17 are integrally pushed back from the most pushed position in the eject direction by the urging force of the eject spring 11. As a result of a series of operations from the eject position of the slider 10, the front end bent portion of the cam pin 14 is introduced and locked to the locking portion 13c from the starting portion 13a of the cam groove 13 through the forward path 13b, and as shown in FIG. Movement in the eject direction is restricted at the card mounting position slightly before the most depressed position, and the slider 10 is locked to the body 4 at the card mounting position. When the slider 10 is locked at the card mounting position, the second contact 7 is accommodated in the rear half of the card receiving space 10d via the contact insertion hole 10g, and the front half of the second contact 7 is located above the card support bottom surface 10e. Protrusively. As a result, the electrodes on the lower surface of the front end portion of the card 3 fitted to the innermost part of the card receiving space 10d of the slider 10 ride on the contacts 7a of the second contacts 7 and are electrically connected to each other. It becomes a wearing state.

  Further, when the card 3 is pushed in with the card mounted, the engaging surface 10f is pushed backward at the insertion end of the card 3, and the slider 10 and the left and right card select members 16, 17 are integrally formed with the eject spring 11. Against the urging force, the card moves again from the card mounting position to the most pushed position. By this operation, the bent portion of the front end of the cam pin 14 is released from the locking portion 13c of the cam groove 13 and introduced into the return path 13d, and the movement restriction of the slider 10 in the ejection direction is released (the lock of the slider 10 is released). ). At this time, by releasing the pushing of the card 3, the slider 10 and the left and right card select members 16, 17 are integrally pushed back from the most pushed position to the ejecting direction by the urging force of the eject spring 11, and returned to the ejecting position. As shown in FIG. 7, the card 3 is ejected and held at the ejecting position of the slot 5. The card 3 ejected to the ejection position of the slot 5 can be removed from the slot 5 by picking and pulling the end projecting from the slot 5 with a finger, and by removing the card 3, FIG. As shown in FIG. 2, in the connector 1, the left and right card select members 16, 17 are returned from the second slide position to the first slide position by the urging forces of the return springs 18, 19, respectively. The urging force of the body 21 returns from the lowest position to the highest position, and the card is not inserted.

  As described above, the first contact that is electrically connected by contacting the electrode of the short card 2 to the housing 4 into which the two types of cards 2 and 3 having substantially the same width and thickness but different lengths and tip shapes are inserted. 6 and the second contacts 7 to be electrically connected to the electrodes of the long card 3 are provided in two rows in the front and rear sides along the card insertion direction, and for ejection that slides in the card insertion / removal direction. In the card connector having the slider 10, the slider 10 is formed in a U-shape that opens toward the card insertion slot 5 of the housing 4, and a card receiving space 10d for receiving the cards 2 and 3 is formed inside the slider 10, The first slide is inserted when a short card is inserted into the left and right ends of the slider 10 due to the difference in the tip shape of the cards 2 and 3 received in the card receiving space 10d. And a pair of card select members 16 and 17 that slide to a second slide position outside the first slide position in the card width direction when a long card is inserted. A shutter member 20 that stretches between the inner bottom surface of the slider 4 and the left and right end portions of the slider 10 so as to be able to move up and down and crosses over the first contact 6; And an elastic body 21 that constantly biases the raised position where the contact 6a of the contact 6 comes into contact with the electrode of the short card 2 so that the left and right card select members 16, 17 are moved from the first slide position when a long card is inserted. By sliding to the second sliding position, the left and right ends of the shutter member 20 are slidably contacted via the inclined sliding contact surfaces 2 a and 22 b, and the shutter member 20 is moved to the elastic body 21. Although the length is different by holding the first contact 6 down to a height that prevents the long card 3 from interfering with the contact 6a by holding the first contact 6 down to the lowered position against the force. Even for two types of cards 2 and 3 having substantially the same width and thickness, the card select members 16 and 17 are operated by utilizing the difference in the tip shape of both the cards 2 and 3, so that the short cards can be used. Since the long card 3 can be prevented from interfering with the first contact 6, the card connector 1 that can be shared by the two types of cards 2 and 3 can be obtained.

  In addition, the engagement surfaces 16b and 17b for receiving the short card 2 and receiving the slider 10 on the slider 10 and the engagement surfaces 10f for receiving the long card 3 and pressing the slider 10 are provided on the near side and the back side along the card insertion direction. The card connector 1 is provided with a first contact 6 for a short card and a second contact 7 for a long card in a housing 4 in two rows in the front and back along the card insertion direction. However, since both the cards 2 and 3 can be held at the respective card mounting positions by the same movement stroke of the slider 10, the push-in / push-out type of the card connector 1 that can be shared by the two types of cards 2 and 3 is used. The eject mechanism 9 can be configured in a simple manner, and both cards 2 and 3 can be pushed in / push out with the same pushing force, improving quality. It is possible to achieve.

It is an external appearance perspective view of the state which removed the cover of the card connector which concerns on embodiment of this invention. It is a top view of the card connector of FIG. It is a top view of the state which inserted the short card | curd in the card connector of FIG. It is a cross-sectional front view of the card selection part of FIG. It is a cross-sectional side view which shows the state which the shutter member raised. FIG. 4 is a plan view of a state in which a card with a short card connector in FIG. 3 is locked in a card mounting position. It is a top view of the state which inserted the long card | curd in the card connector of FIG. It is a cross-sectional front view of the card selection part of FIG. It is a sectional side view showing the state where the shutter member was lowered. It is a top view of the state which locked the card | curd with which the card connector of FIG. 7 is long in a card | curd installation position.

Explanation of symbols

1 Card Connector 2 Short Card 2a Corner Drop Part 2b Corner Drop Part 3 Long Card 3a Corner Drop Part 4 Body (Housing)
5 slot 6 first contact 6a contact 7 second contact 7a contact 9 card ejection mechanism 10 slider 10d card receiving space 16 left card selection member 17 right card selection member 18 return spring 19 return spring 20 shutter member 21 elastic body 22a sliding contact surface 22b Sliding surface

Claims (1)

  The first card contacted with the electrode of the short card and the electrode of the long card are electrically connected to the housing into which two types of cards having substantially the same width and thickness but different lengths and tip shapes are inserted. In a card connector provided with second contacts to be connected to each other in the front and back sides along the card insertion direction in two rows in the front and rear, and an eject slider that slides in the card insertion / removal direction, the slider is a card in the housing. It is formed in a U-shape that opens toward the insertion slot to form a card receiving space for receiving a card inside the slider, and a short card due to the difference in the tip shape of the card received in the card receiving space at the left and right ends of the slider When the card is inserted, it is held at the first slide position. When a long card is inserted, the first slide position is located outside of the first slide position. A pair of card select members that slide in the sliding position are provided opposite to each other, and the left and right ends cross the upper part of the first contact with the left and right ends facing the inner bottom surface of the housing and the left and right ends of the slider. A shutter member stretched on the bottom of the housing, and an elastic body that constantly urges the shutter member to a raised position where the contact of the first contact is in contact with the electrode of the short card. By sliding the left and right card select members from the first slide position to the second slide position, the left and right end portions of the shutter member are slidably contacted via the inclined sliding contact surface, and the shutter member is biased by the elastic body. The shutter member holds the first contact down to a height that prevents the long card from interfering with the first contact. Card connector.

Images