JP2013206602A - Dust proof shutter mechanism, detachable connector including dust proof shutter mechanism, and memory card connector including dust proof shutter mechanism - Google Patents

Abstract

Disclosed is a dust-proof shutter member that can reduce an excessive insertion / extraction force for opening and closing the shutter member.
A shutter member 10 formed of a resin film includes a fixed portion fixed to a lower surface of an inner peripheral portion of a front surface portion of a shell portion 6 and a predetermined portion including a movable portion connected to the fixed portion so as to be elastically displaceable. One having a substantially L-shaped cross-sectional shape with a thickness.
[Selection] Figure 1

Description

  The present invention relates to a dustproof shutter mechanism, a detachable connector having a dustproof shutter mechanism, and a memory card connector having a dustproof shutter mechanism.

  As shown in Patent Documents 1 to 3, a detachable connector has been proposed that includes a shutter member that constitutes a part of a dust-proof shutter mechanism. As the shutter member, for example, a rotating type as shown in Patent Literature 1 and Patent Literature 2 or a sliding type as shown in Patent Literature 3 has been proposed.

  In the case of a rotating shutter member, for example, as shown in Patent Document 1, the pair of shutter members can rotate inside a shield case that encloses a housing that houses a contact terminal at the periphery of the connector fitting portion. Arranged. The shielding portions of the pair of shutter members are close to or separated from each other between the opening of the shield case through which the terminal portion of the plug to be connected passes and the opening end of the connector fitting portion, that is, the connector fitting portion. It is arranged to close or open the open end. At that time, the pair of shutter members are urged by the torsion springs so that the shutter members close to each other, that is, the shielding portion closes the opening end portion of the connector fitting portion.

  In such a configuration, when the terminal portion of the plug is fitted to the connector fitting portion in the housing, the plug terminal portion is brought into contact with the shielding portion of the pair of shutter members through the opening of the shield case, and then The terminal portion of the plug is pushed so as to spread the shielding portion of the shutter member in a direction away from each other against the urging force of the torsion spring, and further inserted into the connector fitting portion.

  Further, in the case of a sliding shutter member, the first shutter and the second shutter that are connected to each other can slide along the attaching / detaching direction of the fitting convex portion of the plug as disclosed in Patent Document 3, for example. In the fitting recess of the housing. When the fitting convex portion of the plug is not connected to the fitting concave portion of the housing, the first shutter and the second shutter are urged by a coil spring so as to close the opening end of the fitting concave portion of the housing. On the other hand, when the plug fitting convex part is connected to the housing fitting concave part, the first shutter and the second shutter are biased by the coil spring in a state where the tip part of the plug fitting convex part is in contact. Against this, after being pushed and slid by the tip portion in a direction away from the opening end of the fitting concave portion of the housing, the fitting convex portion of the plug is locked with respect to the fitting concave portion of the housing.

JP 2005-56626 A JP 2006-185754 A JP 2003-36921 A

  In the rotating or sliding shutter mechanism in the detachable connector as described above, the shutter member rotates against the urging force of the torsion spring and coil spring in a state where the fitting convex portion of the plug is in contact. It can be moved or slid.

  However, since the fitting projection of the plug is rotated or slid in a state where it is in contact with the shutter member at a predetermined pressure, an extra insertion / extraction force for opening and closing the shutter member is required. When the fitting convex portion is repeatedly attached and detached, the fitting convex portion of the plug may be worn.

  In view of the above problems, the present invention is a dust-proof shutter mechanism, a detachable connector having a dust-proof shutter mechanism, and a memory card connector having a dust-proof shutter mechanism, and an extra for opening and closing the shutter member An object of the present invention is to provide a dust-proof shutter mechanism that can reduce the insertion / extraction force, a detachable connector equipped with a dust-proof shutter mechanism, and a memory card connector equipped with a dust-proof shutter mechanism.

  In order to achieve the above-described object, a dust-proof shutter mechanism according to the present invention includes a fixing portion fixed to a peripheral edge of one opening end portion communicating with a small chamber in a housing having a plurality of contact terminals, and a fixing portion. A shutter member having a movable part that is rotatably arranged in the small room and that opens and closes the opening end, and the movable part of the shutter member is formed of a thin-film material that can be elastically displaced. To do.

  Moreover, the end part connected to the fixed part in the movable part of the shutter member may have a plurality of holes for adjusting the restoring force at a predetermined interval. The thickness of the end connected to the fixed part of the movable part of the shutter member may be thinner than the thickness of other parts in order to adjust the restoring force.

  A memory card connector according to the present invention includes the dust-proof shutter mechanism and a small room in which a memory card can be attached and detached.

  Further, the dust-proof shutter mechanism according to the present invention is arranged movably on the periphery of one opening end portion communicating with a small chamber in a housing having a plurality of contact terminals, and a shutter member that opens and closes the opening end portion; It has a driven part to be driven, and is arranged to be movable in a small chamber of the housing with a shutter member formed of a thin film material that can be elastically displaced according to the movement of the driven part. A support main body portion to be supported, and an urging member that urges the support main body portion so as to cause the shutter member to perform an operation of closing the opening end portion.

  The other end of the shutter member may have a guide bar. You may have a several hole for adjusting the softness | flexibility of a shutter member in a predetermined space | interval in the edge part supported by the support main-body part in a shutter member. The shutter member may be formed of a flexible printed board and may have a conductive guide bar at the other end.

  A detachable connector including a dust-proof shutter mechanism according to the present invention includes a socket portion including the above-described dust-proof shutter mechanism and a plug portion that can be attached to and detached from the socket portion.

  According to the dust-proof shutter mechanism, the detachable connector provided with the dust-proof shutter mechanism, and the memory card connector provided with the dust-proof shutter mechanism according to the present invention, the movable part of the shutter member is formed of an elastically displaceable thin-film material. Therefore, an excessive insertion / extraction force for opening / closing the shutter member can be reduced.

(A) And (B) is a block diagram including a partial sectional view showing a detachable connector provided with a first embodiment of a dustproof shutter mechanism according to the present invention. It is a top view which shows the socket part in the example shown by FIG. 1 (A) and (B). It is a front view including the partially broken view which shows the socket part in the example shown by FIG. 1 (A) and (B). It is a side view including the partial cross section which shows the socket part in the example shown by FIG. 1 (A) and (B). (A) is a top view of the shutter member used for 1st Example of the dust-proof shutter mechanism based on this invention shown by FIG. 1, (B) is a front view of the shutter member shown by (A). (C) is a side view of the shutter member shown in (A). (A) is a top view of another example of a shutter member used in the first embodiment of the dust-proof shutter mechanism according to the present invention shown in FIG. 1, and (B) is a shutter shown in (A). It is a front view of a member, (C) is a side view of the shutter member shown by (A). (A) is a top view of another example of a shutter member used in the first embodiment of the dust-proof shutter mechanism according to the present invention shown in FIG. 1, and (B) is shown in (A). It is a front view of a shutter member, (C) is a side view of the shutter member shown by (A). (A) And (B) is a block diagram including a partial cross-sectional view showing a detachable connector provided with a second embodiment of the dust-proof shutter mechanism according to the present invention. It is a top view which shows the socket part in the example shown by FIG. 8 (A) and (B). It is a front view including the partially broken view which shows the socket part in the example shown by FIG. 8 (A) and (B). It is a side view which shows the socket part in the example shown by FIG. 8 (A) and (B). It is a top view which shows the shutter member used for the example shown by FIG. 8 (A) and (B). It is a front view which shows the shutter member used for the example shown by FIG. 8 (A) and (B). (A) is a side view which shows the shutter member used for the example shown by FIG. 12, (B) is an enlarged view which expands and shows the B section of the shutter member shown by (A). It is a top view which shows another example of the shutter member used for the example shown by FIG. 8 (A) and (B). (A) is a side view in the example shown in FIG. 15, and (B) is a side view showing a modification of the shutter member used in the example shown in FIG. 8. (A) is a front view which shows another example of the shutter member used for the example shown by FIG. 8 (A) and (B), (B) is a side view in the example shown by (A). It is. (A) is a block diagram including a partial cross-sectional view showing a memory card connector provided with a third embodiment of the dust-proof shutter mechanism according to the present invention, and (B) is a shutter member shown in (A). It is an enlarged view which expands and shows the C section.

  1A and 1B schematically show a detachable connector provided with a first embodiment of a dustproof shutter mechanism according to the present invention.

  The detachable connector includes, for example, a plug portion 2 provided on a predetermined module substrate EN that can be attached to and detached from the mother boat PB in the in-vehicle navigation system, and a socket portion 4 that is fixed to the mother boat PB. Has been.

  The flat plug portion 2 has a plurality of contact pads 20 as connection terminal portions formed on the front and back surfaces thereof corresponding to the arrangement of contact terminals 14 and 16 in the socket portion 4 to be described later. The plurality of contact pads 20 are formed along a direction perpendicular to the paper surface at a predetermined interval in FIG.

  The socket portion 4 includes a shell portion 6 that forms an outer shell portion, an insulator portion 8 that is formed inside the shell portion 6 and has a plug housing portion to which the plug portion 2 can be attached and detached, and a plug portion that is disposed in the plug housing portion. A plurality of contact terminals 14 and 16 that electrically connect the two contact pads 20 and the conductor pattern of the mother board PB, and shutter members 10 and 12 that are arranged on the inner peripheral portion of the shell portion 6 and that open and close the opening 60. , Including.

  As shown in FIGS. 3 and 4, the shell portion 6 is formed into a cylindrical shape using, for example, a thin metal material, and has a front surface portion having a substantially rectangular opening 60 through which the plug portion 2 passes, and a front surface portion. A top plate portion that is continuous with the top plate portion, a side surface portion that is continuous with both ends of the top plate portion, and a bottom surface portion that faces the top plate portion and connects both side surface portions. A pair of claw portions 62 and 64 fixed to the mounting hole of the mother boat PB and a positioning pin 66 fitted to the positioning hole of the mother boat PB are provided on the bottom surface portion.

  As shown in FIG. 3, the contact terminals 14 and 16 are arranged in a staggered manner around the periphery of the plug accommodating portion of the insulator portion 8 having an opening 80 at one end. The movable contact portions of the contact terminals 14 and 16 that sandwich the contact pads 20 of the plug portion 2 are formed so as to face each other. The fixed terminal portions 142 and 162 of the contact terminals 14 and 16 are respectively fixed to solder through holes of the mother board PB.

  A pair of shutter members 10 and 12 are disposed on the inner side of the periphery of the opening 60 in the front surface portion so as to be close to or separated from each other. The shutter members 10 and 12 are each formed of a resin film, such as a polyimide (PI) film, a polyphenylene sulfide (PPS) film, a polyethylene naphthalate (PEN) film, or the like. Since the shutter members 10 and 12 have the same structure, the shutter member 10 will be described, and the description of the shutter member 12 will be omitted.

  As shown in enlarged views in FIGS. 5A to 5C, the shutter member 10 has a substantially L-shaped cross-sectional shape with a predetermined thickness, and is formed on the inner peripheral portion of the front surface portion of the shell portion 6. The fixed portion 104 is fixed to the lower surface, and the movable portion 102 is connected to the fixed portion 104 so as to be elastically displaceable.

  The movable portion 102 has a bent portion 100 at the tip, and can be elastically displaced as indicated by a two-dot chain line in FIG. As shown in FIG. 3, the length in the longitudinal direction of the movable portion 102 is set slightly larger than the corresponding length in the longitudinal direction in the opening 60. The length of the short side of the movable part 102 in the shutter member 10 is such that the bent part 100 abuts on the bent part of the movable part of the shutter member 12 at a position corresponding to the substantially central part of the opening 60. Is set to Accordingly, the dustproof shutter mechanism is formed by the shutter members 10 and 12.

  Thereby, as shown in FIG. 1A, when the plug portion 2 is not connected to the socket portion 4, the opening portion 60 in the front surface portion has the bent portion 100 and the shutter member 12 of the movable portion 102 of the shutter member 10. Since the bent part of the movable part is brought into contact with each other by its elasticity, the opening 60 is closed as shown in FIG. On the other hand, as shown in FIG. 1B, when the plug portion 2 is connected to the socket portion 4, the plug portion 2 is inserted into the opening portion 60 in the front portion, so that the movable portion 102 of the shutter member 10 and The movable portion of the shutter member 12 is easily pushed away from the distal end portion of the plug portion 2 in a direction away from each other against its elastic force. At that time, since the movable parts of the shutter members 10 and 12 are expanded by a relatively small pressing force by the plug part 2, the tip part of the plug part 2 is worn even when the plug part 2 is repeatedly attached and detached. There is no fear of doing it.

  The shutter members 10 and 12 are not limited to the above-described example. For example, as illustrated in FIGS. 6A to 6C, the shutter member 18 having a substantially L-shaped cross-section with a predetermined thickness. However, a plurality of through holes 186 may be provided at the connecting portion between the end portion of the fixed portion 184 and the end portion of the movable portion 182. The shutter member 18 is formed of the same material as that of the shutter members 10 and 12, for example. The movable portion 182 has a bent portion 180 at the tip, and can be elastically displaced as shown by a two-dot chain line in FIG. Thus, by providing the plurality of through holes 186 at a predetermined interval, the contact force and the restoring force of the bent portion 180 of the movable portion 182 can be adjusted. As shown in FIG. 3, the length in the longitudinal direction of the movable portion 182 is set slightly larger than the corresponding length in the longitudinal direction in the opening 60. The length of the short side of the movable portion 182 in the shutter member 18 is set so that the bent portion 180 contacts the bent portion of the movable portion of the shutter member that faces the bent portion 180 at a position corresponding to the substantially central portion of the opening 60. ing.

  Further, for example, as shown in FIGS. 7A to 7C, the shutter member 30 having a substantially L-shaped cross-section with a predetermined thickness is provided with the end of the fixed portion 304 and the end of the movable portion 302. The thickness of the connecting part 300 to the part may be set thinner than the thickness of the other part. The shutter member 30 is formed of the same material as that of the shutter members 10 and 12, for example. The movable portion 302 has a bent portion 306 at the tip, and can be elastically displaced as indicated by a two-dot chain line in FIG. As described above, by reducing the thickness of the connecting portion 300 as compared with the thickness of other portions, the contact force and the restoring force of the bent portion 306 of the movable portion 302 can be adjusted. As shown in FIG. 3, the length of the movable portion 302 in the longitudinal direction is set slightly larger than the corresponding length in the longitudinal direction at the opening 60. The length of the short side of the movable portion 302 in the shutter member 30 is set so that the bent portion 306 is in contact with the bent portion of the movable portion of the shutter member facing the bent portion 306 at a position corresponding to the substantially central portion of the opening 60. ing.

  8A and 8B schematically show a detachable connector provided with a second embodiment of the dust-proof shutter mechanism according to the present invention, respectively.

  The detachable connector includes, for example, a plug portion 2 provided on a predetermined module substrate EN that can be attached to and detached from the mother boat PB, and a socket portion 44 that is fixed to the mother boat PB. 8A and 8B, components that are the same as those in the example illustrated in FIG. 1A are denoted by the same reference numerals, and redundant description thereof is omitted.

  On the module substrate EN, a shutter driving member ENP projects perpendicularly to the surface of the module substrate EN adjacent to the plug portion 2.

  The socket portion 44 includes a shell portion 46 that forms an outer shell portion, an insulator portion 48 that is formed inside the shell portion 46 and has a plug housing portion to which the plug portion 2 can be attached and detached, and a plug portion disposed in the plug housing portion. A plurality of contact pads 14 and 16 for electrically connecting the plurality of contact pads 20 and the conductor pattern of the mother board PB, and an opening 460 in the shell portion 46 movably disposed on the inner peripheral portion of the shell portion 46. And a shutter member 50 that opens and closes.

  The shell portion 46 has its both side surfaces bent and fixed along the outer peripheral portion of the insulator portion 48. As shown in FIGS. 10 and 11, the shell portion 46 is formed of, for example, a thin metal material, and has a front portion having a substantially rectangular opening 460 through which the plug portion 2 passes, and an upper portion connected to the front portion. And a pair of side surface portions that are connected to both ends of the top plate portion and face each other.

  A pair of claw portions 462 and 464 that are fixed to the mounting hole of the mother boat PB and a positioning pin 466 that is fitted into the positioning hole of the mother boat PB are provided at the lower ends of the side surface portions. As shown by a two-dot chain line in FIG. 9, the top plate portion has a cutout portion 468 into which the operation portion 522 of the support main body portion 52 enters or separates with a shutter member 50 described later.

  As shown in FIG. 10, the plurality of contact terminals 14 and 16 are arranged along the direction substantially perpendicular to the attaching / detaching direction of the plug part 2 at the periphery of the plug accommodating part of the insulator part 48 having the opening 480 at one end. They are arranged in a staggered pattern. The contact terminals 14 and 16 are individually inserted into the slits of the insulator portion 48. Adjacent slits are partitioned by a partition wall.

  A predetermined gap is formed between the inner peripheral portion of the front surface portion of the shell portion 46 and the peripheral edge of the opening portion 480 in the insulator portion 48 as shown in FIG. In addition, guide grooves 482 are formed facing each other at both measuring portions inside the insulator portion 48 that is located immediately below the top plate portion of the shell portion 46. A guide piece 526 of a support main body 52 having a shutter member 50 described later is slidably inserted into the guide groove 482.

As shown in FIGS. 12 and 13, one end of the shutter member 50 is inserted into and connected to the groove of the support main body 52. The shutter member 50 is formed of a resin film, for example, a polyimide (PI) film, a polyphenylene sulfide (PPS) film, a polyethylene naphthalate (PEN) film, or the like. A guide bar 502 is coupled to the other end of the flexible shutter member 50. The guide bar 502 extends parallel to the X coordinate axis along the other end of the shutter member 50 in the orthogonal coordinates shown in FIG. In the guide bar 502, the other end of the shutter member 50 is inserted into the inside as shown in FIG. The entire front end portion of the guide bar 502 is bent at a predetermined angle along the Z coordinate axis in the orthogonal coordinates shown in FIG.
As shown in FIG. 8A, the entire tip of the guide bar 502 has a shutter member 50 as shown in FIG.
When in the shielding position for shielding the gap between the opening 480 in the insulator portion 48 and the opening 460 in the shell portion 46, it is located near the bottom of the insulator portion 48 in the gap. Further, the entire tip of the guide bar 502 is opened so that the shutter member 50 opens a gap between the opening 480 in the insulator 48 and the opening 460 in the shell 46 as shown in FIG. 8B. When in the position, it is located at a predetermined standby position between the top plate portion of the shell portion 46 and the insulator portion 8.

  As shown in FIG. 12, the support main body 52 has an operation portion 522 at the center that is selectively pressed by the shutter drive member ENP. Further, the support main body portion 52 has two holes 524 that respectively receive one ends of coil springs 56 and 58 (see FIG. 9) disposed in the insulator portion 48.

  Therefore, the dust-proof shutter mechanism is composed of the shutter member 50 and the support main body 52 guided by the guide groove 482 of the insulator 48 and the coil springs 56 and 58.

  As a result, as shown in FIG. 8B from the state shown in FIG. 8A, the operation portion 522 of the support main body 52 resists the urging force of the coil springs 56 and 58 by the shutter drive member ENP. When pressed, the shutter member 50 is set to the open position, and the entire tip of the guide bar 502 is moved to a predetermined standby position. On the other hand, when the shutter drive member ENP is separated from the operation portion 522 of the support main body 52, the support main body 52 is moved until the shutter member 50 reaches the shielding position by the urging force of the coil springs 56 and 58. . Therefore, even when the plug part 2 is repeatedly attached and detached, there is no possibility that the tip part of the plug part 2 abuts against the surface of the shutter member 50, so that the tip part of the plug part 2 is not worn.

  The support main body 52 and the shutter member 50 are not limited to such an example. For example, as shown in FIG. 15, the central portion of the connecting portion of the support main body 62 to which one end of the shutter member 60 is connected, and The elongated member 628 and the two elongated members 604 may be formed at one end at a predetermined interval at one end of the shutter member 60. Thereby, since the flexibility of the shutter member 60 is improved, a smooth opening / closing operation of the guide bar 602 and the shutter member 60 according to the operation of the operation unit 622 is obtained.

  As shown in FIGS. 15 and 16A, one end of the shutter member 60 is inserted into and connected to the groove of the support main body 62. The shutter member 60 is formed of a resin film, for example, a polyimide (PI) film, a polyphenylene sulfide (PPS) film, a polyethylene naphthalate (PEN) film, or the like. A guide bar 602 is coupled to the other end of the flexible shutter member 60. The guide bar 602 extends parallel to the X coordinate axis along the other end of the shutter member 60 in the orthogonal coordinates shown in FIG. The other end of the shutter member 60 is inserted into the guide bar 602. The entire front end portion of the guide bar 502 is bent at a predetermined angle along the Z coordinate axis in the orthogonal coordinates shown in FIG.

  The entire distal end of the guide bar 602 is at a shielding position where the shutter member 60 shields the gap between the opening 480 in the insulator 48 and the opening 460 in the shell 46 as shown in FIG. 8A. In some cases, it is located near the bottom of the insulator 48 in the gap. Further, the entire distal end portion of the guide bar 602 is an opening in which the shutter member 60 opens a gap between the opening portion 480 in the insulator portion 48 and the opening portion 460 of the shell portion 46, as shown in FIG. 8B. When in the position, it is located at a predetermined standby position between the top plate portion of the shell portion 46 and the insulator portion 8.

  As shown in FIG. 15, the support main body portion 62 has an operation portion 622 that is selectively pressed by the above-described shutter drive member ENP at the center portion. Further, the support main body 62 has holes 524 at two locations for receiving one ends of coil springs 56 and 58 (see FIG. 9) disposed in the insulator 48. The pair of guide pieces 626 of the support main body 62 is slidably inserted into the guide groove 482 described above.

  Note that the shutter member 60 is not provided with the elongated hole 604 as in the above-described example, but, for example, as shown in FIG. It may change so that it may become thin compared with the thickness of a part. That is, since the elongated hole is not provided in the shutter member 60 ', the strength can be improved and a smooth opening / closing operation of the shutter member 60' can be secured.

  Furthermore, the shutter members 50 and 60 used in the second embodiment of the dust-proof shutter mechanism according to the present invention are each formed of a resin film. However, the present invention is not limited to such an example. As shown in FIGS. 17A and 17B, the shutter member 70 may be formed of a flexible printed circuit board (FPC).

  One end of the shutter member 70 is inserted into and connected to the groove of the support main body 72 as shown in FIG. A guide bar 702 made of a conductive material is coupled to the other end of the flexible shutter member 70. The guide bar 702 extends in parallel to the X coordinate axis along the other end of the shutter member 70 in the orthogonal coordinates shown in FIG. The other end of the shutter member 70 connected to the conductive layer is inserted into the guide bar 702. Thereby, the guide bar 702 and the conductive layer of the flexible printed circuit board in the shutter member 70 are electrically connected. The guide bar 702 and the shutter member 70 as a whole can be flexibly bent along the Z coordinate axis in the orthogonal coordinates shown in FIG.

  As shown in FIG. 8A, the entire guide bar 702 is in a shielding position where the shutter member 70 shields the gap between the opening 480 in the insulator portion 48 and the opening 460 in the shell portion 46. The gap is located near the bottom of the insulator portion 48 and in contact with the shell portion 46. Thereby, static electricity charged in the shutter member 70 is released to the ground line through the guide bar 702 and the shell portion 46.

  Further, the entire guide bar 702 is in an open position where the shutter member 70 opens a gap between the opening 480 in the insulator 48 and the opening 460 in the shell 46 as shown in FIG. 8B. In this case, it is located at a predetermined standby position between the top plate portion of the shell portion 46 and the insulator portion 8.

  The support main body 72 has an operation portion 722 at the center that is selectively pressed by the shutter driving member ENP. Further, the support main body 72 has holes (not shown) for receiving one ends of coil springs 56 and 58 (see FIG. 9) arranged in the insulator 48 at two locations inside. The pair of guide pieces 726 of the support main body 72 is slidably inserted into the above-described guide groove 482.

  FIG. 18 shows a main part of a connector for a memory card provided with a third embodiment of the dust-proof shutter mechanism according to the present invention.

  The memory card connector is disposed on the printed circuit board PCB, and includes, for example, a card housing portion that detachably houses an SD card (trademark) MC. The memory card connector electrically connects the mounted SD card (trademark) MC to the printed wiring board PCB via a contact terminal.

  The memory card connector includes a cover member 86 that forms an upper portion and both side portions of the card housing portion, a base member 82 that forms the bottom portion of the card housing portion, and an SD card MC electrically connected to a conductive pattern of the printed wiring board PCB. And a plurality of contact terminals 88 to be connected. The card accommodating portion has a card slot through which the SD card MC passes at one end as an open end. Each contact terminal 88 disposed on the base member 82 includes a movable piece having a contact portion that contacts a contact pad (not shown) of the SD card MC, and a fixed terminal that is soldered and fixed to the conductor pattern of the printed circuit board PCB. And a connecting portion that connects the fixed terminal portion and the movable piece portion.

  A shutter member 80 is provided in the card slot described above. The shutter member 80 is formed of a resin film, for example, a polyimide (PI) film, a polyphenylene sulfide (PPS) film, a polyethylene naphthalate (PEN) film, or the like. The shutter member 80 has a substantially L-shaped cross-sectional shape, and includes a movable piece portion and a fixed portion that is continuous with an end portion of the movable piece portion. The fixing portion is fixed to a part of the peripheral edge of the card slot in the base member 82 formed of a resin material. When the SD card MC is mounted, as shown in FIG. 18 (B), the movable piece portion that can be elastically displaced is in contact with and pressed against the surface of the SD card MC. The base member 82 is pushed into the recess in the inner periphery. On the other hand, when the SD card MC is not mounted, the movable piece portion has an end portion of the inner peripheral portion of the cover member 86 due to its own elastic force as shown in FIG. It contacts with a predetermined pressure. As a result, the movable piece of the shutter member 80 closes the card slot. Accordingly, the dustproof shutter mechanism is formed by the shutter member 80.

2 Plug part 4 Socket part 10, 12, 18, 30, 50, 60, 70, 80 Shutter member 14, 16 Contact terminal

Claims (10)

A fixed portion fixed to the periphery of one opening end communicating with the small chamber in a housing having a plurality of contact terminals, and connected to the fixing portion and rotatably arranged in the small chamber. A shutter member having a movable part that opens and closes;
A dust-proof shutter mechanism, wherein the movable part of the shutter member is formed of a thin-film material that can be elastically displaced.   2. The dust-proof shutter mechanism according to claim 1, wherein an end portion of the movable portion of the shutter member connected to the fixed portion has a plurality of holes for adjusting restoring force at predetermined intervals.   2. The dust-proof shutter mechanism according to claim 1, wherein a thickness of an end portion connected to the fixed portion of the movable portion of the shutter member is thinner than a thickness of another portion in order to adjust a restoring force. . A shutter member that is movably disposed on the periphery of one opening end communicating with a small chamber in a housing having a plurality of contact terminals, and that opens and closes the opening end;
The shutter having a driven part to be driven and arranged to be movable in a small chamber of the housing with the shutter member formed of a thin film material that can be elastically displaced according to the movement of the driven part A support body for supporting one end of the member;
A biasing member that biases the support main body so as to cause the shutter member to perform an operation of closing the opening end;
A dust-proof shutter mechanism.   5. The dust-proof shutter mechanism according to claim 4, wherein the other end of the shutter member has a guide bar.   5. The dust-proof shutter mechanism according to claim 4, wherein a plurality of holes for adjusting flexibility of the shutter member are provided at predetermined intervals in an end portion of the shutter member supported by the support main body portion. .   5. The dust-proof shutter mechanism according to claim 4, wherein the shutter member is formed of a flexible printed board and has a conductive guide bar at the other end. A socket portion comprising the dust-proof shutter mechanism according to claim 1;
A plug portion that is detachable from the socket portion;
A detachable connector including a shutter mechanism configured to include A socket portion comprising the dust-proof shutter mechanism according to claim 4;
A plug portion that is detachable from the socket portion;
A detachable connector including a shutter mechanism configured to include   A memory card connector comprising: the dust-proof shutter mechanism according to claim 1; and a small room in which the memory card can be attached and detached.

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