JP5811365B2 - Card connector with removal mechanism - Google Patents

Description

  The present invention relates to a card connector for connecting a card such as an IC card or a flash memory card to an electronic device such as a mobile phone or a smartphone, and more particularly to a card connector with a take-out mechanism provided with a card take-out mechanism.

  Conventionally, this type of card connector includes a slider that moves with the card to the side of the housing, a push spring that urges the slider in the push-out direction, and a locking means that locks the slider such as a heart cam mechanism at a predetermined position. A card connector with a take-out mechanism is widely known.

  This card connector with a take-out mechanism has an arm portion with which the front edge of the card abuts against the slider, and when the card is inserted into the housing, the front edge of the card abuts against the arm portion and resists the push spring from this state. When the slider is pushed in, the slider moves to a predetermined pushing position, and the slider is locked by the locking means at that position.

  When the card is taken out, when the lock means is released, the slider is pushed by the pushing spring and moves in the pushing direction, and the arm portion that comes into contact with the front edge of the card pushes out the card accordingly. .

  On the other hand, since such a card connector has a different card insertion part size depending on the specifications of the card used, a card having a smaller outer shape than a regular card may be erroneously inserted. In the conventional card connector with a take-out mechanism as described above, if the arm portion is not long enough, the front edge portion of the card does not come into contact with the arm portion, and there is a possibility that an erroneously inserted card cannot be taken out.

  Therefore, in view of such problems, even if a card is inserted with a long arm length, the front edge of the card is in contact with the arm portion, and the card can be taken out using the take-out mechanism. A card connector with a take-out mechanism as described above has been developed (see, for example, Patent Document 1).

JP 2008-140030 A

  However, in the conventional technology as described above, when a card having a smaller outer shape than a regular card is mistakenly inserted, the pushing force by the card is biased to one end side of the arm portion, and further, the pushing spring is applied to the other end side. Since an urging force in the push-out direction is applied, a rotational moment is generated in the arm portion, and there is a risk that the rotational moment may damage the slider or hinder the movement of the slider.

  Therefore, in view of such a conventional problem, the present invention provides a card connector with a takeout mechanism that can suitably take out the card even when a card having a smaller outer shape than a regular card is erroneously inserted. It was made as a purpose.

The feature of the invention described in claim 1 for solving the conventional problems as described above includes a housing having a card insertion portion into which a card is inserted, and an elastic contact piece protruding from the inner bottom surface of the card insertion portion. A movable slider having a plurality of contacts, an arm portion with which the front end edge of the card abuts, a push spring for biasing the slider in a push direction, and a lock means for fixing the slider at a desired push position In the card connector with a take-out mechanism, the arm portion is formed with a length that allows the front end edges of all the cards to be inserted to come into contact with each other, and in the card width direction with the push-out spring of the arm portion. A restriction convex part protruding from one or both sides of the arm part is provided at a position separated by a desired distance, and the restriction convex part is formed on the top plate or the bottom plate of the housing. Is guided by the guide groove toward the card insertion direction, wherein an inner part of the card insertion portion, biases extruding said arm portion in a position spaced a desired distance to the extrusion springs and the card width direction auxiliary A card connector with a take- out mechanism having a push-out spring .

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the arm portion is formed to have a length that crosses the card insertion portion.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect , the lock means has a lock pin having one end pivotally supported by the housing, and a heart cam type loop formed on the slider. And a restricting portion formed at the other end of the lock pin is slidably inserted into the pin guide groove, and the restricting portion is engaged with the heart cam by an initial card pushing operation. It is a push-in / push-out system that moves and moves to a position where the engagement with the heart cam is released by pushing again.

As described above, the card connector with a takeout mechanism according to the present invention includes a housing having a card insertion portion into which a card is inserted, a plurality of contacts having elastic contact pieces protruding from the inner bottom surface of the card insertion portion, A take-out mechanism comprising a movable slider having an arm portion with which the front edge of the card abuts, a push-out spring that urges the slider in the push-out direction, and a lock means for fixing the slider at a desired push-in position In the attached card connector, the arm portion is formed to a length that allows the front end edges of all the cards to be inserted to come into contact with each other, and a desired distance is separated from the push spring of the arm portion in the card width direction. A car that is provided with a restricting convex portion protruding from one or both sides of the arm portion at a position, and the restricting convex portion is formed on the top plate or bottom plate of the housing. By guiding the guide groove in the insertion / removal direction, a card with a smaller outer shape than a regular card is accidentally inserted, and the pushing force exerted by the card is biased toward one end of the arm portion, causing a rotational moment on the arm portion. even if, because the arm portion is guided through the restriction projection can counteract the rotational moment, Rutotomoni can prevent damage to the slider, a rear portion of the card insertion portion, wherein By providing an auxiliary push spring that urges the arm portion in the push direction at a desired distance from the push spring in the card width direction, the rotational moment of the arm portion that increases as the card pushes in is reduced. be able to.

  In the present invention, the arm portion is formed to have a length that crosses the card insertion portion, so that the front end edges of all the cards that are supposed to be inserted can come into contact with each other.

  Furthermore, in the present invention, the locking means includes a lock pin having one end pivotally supported by the housing, and a heart cam type loop-shaped pin guide groove formed on the slider, and the pin guide groove includes the A restricting portion formed on the other end of the lock pin is slidably inserted, and the restricting portion is moved to a position where it engages with the heart cam by the first card pushing operation, and is engaged with the heart cam by the pushing operation again. By using the push-in / push-out method that moves to the position where release is performed, the rotational moment is suppressed in the push-in operation when locking and unlocking.

It is a perspective view which shows an example of the card connector with a taking-out mechanism concerning the present invention. It is an exploded perspective view same as the above. It is an AA line expanded sectional view in FIG. It is a top view which shows the state which removed the shield cover same as the above. It is a top view which shows the state which mounted | wore the card | curd same as the above. It is a top view which shows the housing main body in FIG. It is a perspective view which shows arrangement | positioning of the metal member in FIG. (A) is a perspective view which shows the slider in FIG. 2, (b) is the perspective view seen from the same lower side. It is a partial enlarged plan view which shows a slider main-body part. (A)-(c) is a top view of the state which removed the shield cover which shows the state at the time of inserting a non-regular card | curd.

  Next, an embodiment of the card connector with a take-out mechanism according to the present invention will be described based on the embodiment shown in FIGS. In the figure, symbol A is a regular card such as a micro SD card, and symbol B is a card having a smaller outer shape than the regular card A.

  The card connector 1 with a take-out mechanism (hereinafter referred to as a card connector 1) includes a housing 3 having a card insertion portion 2 into which a card A is inserted and a plurality of elastic contact pieces protruding from the inner bottom surface of the card insertion portion 2. And a signal transmission pad (not shown) exposed on one side of the card A inserted into the card insertion portion 2 is in contact with the corresponding contact 4, 4. Thus, the card A and the mounting substrate are electrically connected via the card connector 1.

  The card connector 1 also includes a movable slider 6 having an arm portion 5 against which the front edge of the card A abuts, a push spring 7 that urges the slider 6 in the push direction, and a desired push-in of the slider 6. Locking means for fixing in position, and when the locking means is released, the card A is taken out by being pushed by the arm portion 5 of the slider 6 urged by the pushing spring 7.

  As shown in FIG. 2, the housing 3 is a combination of a housing body 10 having a bottom plate portion 13 made of an insulating synthetic resin and a shield cover 11 made of a conductive metal plate covering the upper surface portion, the back surface portion, and the side surface portion. By this, it is formed in the hollow box shape which the card insertion direction near side end opened.

  The housing body 10 is formed by insert-molding a metal member 12 formed in an arrangement as shown in FIG. 7 by pressing an electrically conductive metal plate having elasticity, and a flat bottom plate portion 13 made of synthetic resin. And side wall portions 14a and 14b raised from both side edges of the bottom plate portion 13, the bottom plate portion 13 and the side wall portions 14a and 14b form a card insertion portion 2 having a concave shape on the upper surface side, and A slider accommodating portion 15 in which a slider main body 20 to be described later is movably accommodated is formed inside one side wall portion 14 a, and the upper surfaces of the card insertion portion 2 and the slider accommodating portion 15 are covered with the shield cover 11.

  The metal member 12 includes a U-shaped metal member bottom plate portion 16 having a plan view, and both side wall portions 14a and 14b having a shape that rises vertically upward from both side edges of the metal member bottom plate portion 16, and the metal member 12 has a bottom plate. By being incorporated in the portion 13, both side wall portions 14 a and 14 b of the housing body 10 are formed.

  Further, the metal member 12 is integrally provided with an auxiliary push spring 17 on the back side, and the auxiliary push spring 17 is incorporated in the bottom plate portion 13 so as to protrude to the back side of the card insertion portion 2.

  As shown in FIGS. 6 and 7, the auxiliary push-out spring 17 is inclined toward the distal end side of the inward arm from the proximal end portion 17 a and the proximal end portion 17 a raised from the rear edge of the metal member bottom plate portion 16. And a spring body 17b having a shape, forming a cantilever spring shape.

  The slider accommodating portion 15 is formed in a concave groove shape parallel to the card insertion / extraction direction with the metal member bottom plate portion 16 exposed, and the lower surface portion of the slider body 20 is movably accommodated in the concave groove.

  A slit-like main body guide groove 18 that is long in the card insertion / removal direction is formed in the bottom surface of the slider housing 15, that is, the exposed metal member bottom plate 16.

  On the other hand, a slit-like guide groove 19 directed in the card insertion / removal direction is formed in the housing body 10 on the inner side of the other side wall portion 14b, and a restriction convex portion 30 described later is movably inserted. Yes.

  Further, a plurality of contacts 4, 4... Are integrally incorporated in the bottom plate portion 13 together with the metal member 12 by insert molding, and elastic contact pieces of the respective contacts 4, 4. The portion protrudes and comes into contact with each signal transmission pad of the card A inserted into the card insertion portion 2.

  As shown in FIG. 8, the slider 6 is integrally formed of an insulating synthetic resin material, and includes a slider body 20 and an arm portion 5 projecting from a front end side portion of the slider body 20. The portion 5 forms an L shape in plan view.

  The slider main body 20 is formed in a rectangular frame shape, and a guide protrusion 21 inserted into the main body guide groove 18 is integrally projected on the lower surface.

  In addition, a spring fixing portion 22 to which one end of the push spring 7 is fixed is formed on the front outer portion of the slider main body 20, and the other end of the push spring 7 takes a reaction force on the back side surface of the housing main body 10 to slide the slider. The main body 20 is urged in the pushing direction.

  The slider body 20 is formed with a pin guide groove 23 having a heart cam loop shape on the upper surface portion. The pin guide groove 23 and a lock pin 24 pivotally supported at one end by the housing 3 are pushed in and pushed out. The lock means of the system is configured.

  The lock pin 24 includes a pivot portion 24 a that is bent downward at one end, and the pivot portion 24 a is inserted into a shaft support portion 25 formed on the back side of the housing body 10, thereby constituting a rotation center axis of the lock pin 24. doing. Further, a restricting portion 24 b that is bent downward is formed at the other end of the lock pin 24, and the restricting portion 24 b is inserted into a pin guide groove 23 formed in the slider body 20.

  The lock pin 24 is urged toward the bottom side of the pin guide groove 23 by a push-down spring 11a formed by punching the shield case so that the restricting portion 24b does not float above the bottom portion of the pin guide groove 23.

  As shown in FIG. 9, the pin guide groove 23 is formed in a heart cam type loop shape on the surface of the slider body 20, and the forward path portion 23 </ b> A and the return path portion 23 </ b> B disposed on both sides of the heart cam 26 and the recess of the heart cam 26. It is comprised by the lock | rock part 23C arrange | positioned at the side. In the figure, reference numeral 23D denotes a reciprocating common portion where the forward path portion 23A and the return path portion 23B join.

  A restricting portion 24b at the tip of the lock pin 24 is inserted into the pin guide groove 23 so as to circulate sequentially along the forward path portion 23A, the lock portion 23C, and the return path portion 23B, and the restricting portion 24b does not reverse during circulation. As described above, the bottoms of the forward path part 23A, the lock part 23C, and the return path part 23B are formed so as to be inclined so that the terminal end side in the movement direction becomes higher, and the step parts 27A to 27D for regulating the movement direction are formed at the joint portions of the respective parts. Is formed.

  When the card is not inserted, the restricting portion 24b of the lock pin 24 is at the origin stop position a. When the slider 6 moves in conjunction with the card pushing operation, the restricting portion 24b moves the forward path portion 23A, and when the pushing operation force is released, the pushing spring. 7 returns to the extrusion stop position a side.

  On the other hand, when the regulating portion 24b reaches the end position b of the forward path portion 23A by the pushing operation, the movement toward the forward path portion 23A side is regulated by the step portion 26A, and the pushing operation force is released at that position, thereby engaging the engagement position. Move to c.

  When the restricting portion 24b is positioned at the engaging position c, the restricting portion 24b is engaged with the slider 6 via the heart cam 26, and as shown in FIG. It plays a role and regulates the movement of the slider 6.

  On the other hand, when the card pushing operation is performed again for releasing the lock, that is, the push-out operation, the movement to the forward path portion 23A side is regulated by the step portion 27B, and the regulating portion 24b moves to the terminal stop position d, and the position d By releasing the pushing operation force, the movement to the engagement position c side is regulated by the stepped portion 27C, the slider body 20 is pushed and moved by the pushing spring 7, and the regulating portion 24b is connected to the return path portion 23B and the forward path return path. It returns to the origin position a through the common part 23D.

  The arm portion 5 extends in the card width direction from the side surface of the front end portion of the slider body 20, and is formed so that the front end edges of all assumed cards A and B can be brought into contact with each other. The length is formed across the card insertion portion 2.

  Further, the arm portion 5 is provided with a restriction convex portion 30 protruding from the lower surface at a position spaced apart from the push spring 7 by a desired distance in the card width direction, preferably at the tip portion, and the restriction convex portion 30 is provided as the bottom plate portion 13 of the housing 3. The arm portion 5 is guided in accordance with the movement of the slider main body 20 by being inserted into the guide groove 19 formed in the direction toward the card insertion / extraction direction.

  Further, the arm portion 5 is formed in a comb blade shape with a plurality of avoidance grooves 31, 31... Opened in the lower and front-rear directions on the lower surface portion in an arrangement corresponding to the contacts 4, 4. When sliding on the inner bottom surface of the card insertion portion 2, the contacts 4, 4 ... are not interfered with.

  The card connector 1 with the take-out mechanism configured as described above is pushed by the card B when the card B having a smaller outer shape than the prescribed card A is accidentally inserted, and the card B is pushed. The slider 6 moves toward the back side of the card insertion portion 2 while resisting the urging force.

  At this time, if the card B is inserted in a position opposite to the slider accommodating portion 15 of the card insertion portion 2, the card B is pushed by the card B and a rotational moment acts on the arm portion 5 by the urging force of the push spring 7. However, the arm portion 5 has a restricting convex portion 30 protruding from the lower surface of the tip portion, and the restricting convex portion 30 is inserted into the guide groove 19 to be guided. The rotation of the part 5 is suppressed, and the deformation of the slider 6 is prevented.

  On the other hand, as the card B is pushed in, the pushing spring 7 is compressed and the urging force by the pushing spring 7 is increased, and the rotational moment acting on the arm portion 5 is also increased.

  Therefore, in this card connector 1, as shown in FIGS. 10B to 10C, the back surface of the arm portion 5 of the slider 6 comes into contact with the auxiliary push-out spring 17 disposed at the back of the card insertion portion 2, and the arm By applying an urging force in the pushing direction to the portion 5, the rotational moment is relaxed, the rotation of the arm portion 5 is suppressed, and the deformation of the slider 6 is prevented.

  On the other hand, in the card connector 1 with the take-out mechanism, the front end edge of the card B always comes into contact with the arm portion 5 even if the card B is biased in any of the card width directions, so that the card B is taken out using the take-out mechanism. Can be done.

  Even in this case, since the restricting convex portion 30 is guided by the guide groove 19, the slider 6 moves smoothly in the card insertion portion 2 and pushes out the card B suitably.

  In the above-described embodiment, the arm portion 5 is formed to have a length that crosses the card insertion portion 2 and the entire front edge of the inserted card is in contact with the arm portion 5. The length of the part 5 is not limited to this, and may be a length that allows a part of the front edge of all the cards to be inserted to come into contact.

  Further, in the above-described embodiment, the example in which the restriction convex portion 30 is provided on the lower surface of the distal end portion of the arm portion 5 has been described. However, the position of the restriction convex portion 30 is not limited to this. May be provided on the upper surface of the central portion of the arm portion 5, and the guide groove 19 may be formed on the top plate of the shield cover 11.

  Furthermore, in the above-described embodiment, the example in which the push-out auxiliary spring 17 is formed in the shape of a cantilever plate spring has been described. However, the form of the push-out auxiliary spring 17 is not limited to this, and for example, a coil spring is used and the housing body 10 A reaction force may be applied to the inner side surface of the arm portion 5 to urge the arm portion 5 in the pushing direction.

  Furthermore, in the above-described embodiment, a push-in / push-out type using a heart cam 26 mechanism is used as the locking means, but the mode of the locking means is not limited to this, for example, on the side surface of the housing body 10 A leaf spring-like engagement protrusion is provided, and when the slider main body 20 reaches a desired push-in position, the engagement protrusion and the slider main body 20 are engaged and locked. For example, the engagement protrusion and the slider body 20 can be unlocked.

  In the above-described embodiment, an example in which a card such as a micro SD card is directly inserted into the card insertion portion has been described. However, the mode of the card is not limited to the above-described embodiment, and is applicable to cards of each specification. In addition to the card itself, the card includes a card tray, a card adapter, and the like, and can be applied to these cards.

DESCRIPTION OF SYMBOLS 1 Card connector with taking-out mechanism 2 Card insertion part 3 Housing 4 Contact 5 Arm part 6 Slider 7 Extrusion spring 10 Housing main body 11 Shield cover 12 Metal member 13 Bottom plate part 14 Side wall part 15 Slider accommodating part 16 Metal plate bottom plate part 17 Auxiliary extrusion spring 18 Body guide groove 19 Guide groove 20 Slider body 21 Guide protrusion 22 Spring fixing part 23 Pin guide groove 24 Lock pin 25 Shaft support part 26 Heart cam 27 Step part 30 Restriction convex part

Claims (3)

A housing having a card insertion portion into which a card is inserted, a plurality of contacts having elastic contact pieces protruding from the inner bottom surface of the card insertion portion, and a movable portion having an arm portion with which the front end edge of the card abuts In a card connector with a take-out mechanism comprising a slider, a push spring that urges the slider in the push-out direction, and a locking means for fixing the slider at a desired push-in position,
The arm portion is formed to a length that allows the front end edges of all cards to be inserted to come into contact with each other, and the arm portion is located at a position spaced apart from the push spring of the arm portion by a desired distance in the card width direction. A regulating projection protruding from one or both sides of
Guiding the restricting convex portion into a guide groove in the card insertion / extraction direction formed on the top plate or bottom plate of the housing ;
A take-out mechanism comprising an auxiliary push-out spring that urges the arm portion in the push-out direction at a position behind the push-out spring and at a desired distance in the card width direction from the push spring. Card connector with. The card connector with a take-out mechanism according to claim 1, wherein the arm portion is formed to have a length that crosses the card insertion portion. The locking means includes a lock pin having one end pivotally supported by the housing and a pin guide groove having a heart cam loop shape formed in the slider, and formed in the pin guide groove at the other end of the lock pin. The regulated portion is slidably inserted, and the regulating portion moves to a position where it engages with the heart cam by the first card pushing operation, and moves to a position where the engagement with the heart cam is released by the pushing operation again. The card connector with a take-out mechanism according to claim 1 or 2 , which is a push-in / push-out method.

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