JP2010212146A - Connector for memory card, and mobile terminal with the connector for memory card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a memory card in which in a compact and small-height connector even when a slider is made rotatable against a housing, it is possible to operate the slider smoothly and a guide protrusion which is a guide of the slider cannot be easily worn out, and a mobile terminal with the connector for the memory card. <P>SOLUTION: A single guide protrusion 41 formed on the lower face of the slider 40 has a pair of mutually parallel side faces, a single guide groove 29 formed on the lower face of the housing has a moving guide 29a in which the guide protrusion is engaged when the slider is positioned at a position except a non-conductive position, and a rotation allowance part 29b in which the guide protrusion is engaged when the slider is positioned at the non-conductive position, and includes an biasing means S1 to rotation-bias the slider in a direction in which the engaging part 44 is engaged with an engaged part MC3 of the memory card Mc. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a connector for a memory card such as a microSD card and a portable terminal including the memory card connector.

As a prior art of this type of memory card connector, for example, there is one disclosed in Patent Document 1.
The memory card connector includes a housing having a storage portion that removably receives the memory card, and a claw portion that slides in the storage portion together with the memory card and can be engaged with and disengaged from a recess formed on a side edge of the memory card. And a slider (eject member). On the bottom surface of the storage unit, there are provided a number of contacts that can be electrically connected to the terminals of the memory card inserted into the storage unit. Further, the slider is movable to a non-conductive position where the contact of the memory card and the contact of the housing are not in contact and a conductive position where the terminal and the contact are in contact.
A pair of front and rear guide holes are formed side by side in the front-rear direction on the bottom surface of the housing. One guide hole is a straight groove parallel to the slide direction of the slider, the other guide hole is a straight part parallel to the slide direction, and the remaining part is a rotation-permitting part wider than the straight part. ing. On the other hand, a pair of front and rear guide pins that movably fit in a pair of guide holes project from the bottom surface of the slider. Further, a so-called heart cam groove is formed on the bottom surface of the housing, and one end of the cam bar is movably engaged with the heart cam groove, and the other end of the cam bar is rotatably connected to the slider. Further, a coil spring is provided between the housing and the slider to urge the slider from the conducting position side toward the non-conducting position side. Therefore, when the memory card is not inserted, the slider is positioned at the non-conductive position, and one guide pin engages with the rotation permission portion of the other guide hole.

When the memory card is inserted into the housing, when the memory card presses the claw portion of the slider, one guide pin rotates in the rotation allowing portion, and the slider rotates in the non-conducting position. Go over to the back of the housing. Then, immediately after the memory card gets over the claw portion, the slider claw portion that is rotated and returned to the original position by the biasing force of the coil spring engages with the concave portion of the memory card. Slide until.
When the slider moves to the conduction position, the engagement position between one end of the cam bar and the heart cam groove changes, and the heart cam groove holds the cam bar at that position, so the slider remains in the conduction position even after the insertion force to the memory card is released. Is done.
If the memory card is pushed further into the housing in this state, the engagement position between one end of the cam bar and the heart cam groove further changes, and the heart cam groove releases the cam bar. Returning to the conducting position, the memory card can be removed from the housing.

Japanese Patent No. 4118633

In the memory card connector disclosed in Patent Document 1, one guide pin of the slider is engaged with one guide hole of the housing, and the other guide pin of the slider is engaged with the other guide hole of the housing. It is guided to move with respect to the housing.
However, if a slide mechanism using a pair of guide holes or guide pins is employed, the slider cannot slide longer than the distance between the pair of guide pins, and therefore the slider cannot move beyond its own length.
Further, the rotation angle of the slider when one guide pin rotates within the rotation allowing portion cannot be increased because it is regulated by the other guide pin and the other guide hole (straight groove).
Furthermore, the memory card connector must guarantee a very large number of insertions / removals of about 10,000 times. However, in the connector of Patent Document 1, the contact area between the cylindrical guide pin and the guide hole is small, so If the number of times increases, the guide pin may be worn out to change its shape, or if the guide pin is small, the guide pin itself cannot be shaved, which may hinder the operation of the slider.

  The object of the present invention is to enable the slider to operate smoothly even when the slider is rotatable with respect to the housing in a small and low-profile connector, even when the memory card is inserted and removed many times. Another object of the present invention is to provide a memory card connector in which a guide projection which is a guide member of a slider is not easily worn, and a portable terminal including the memory card connector.

  The memory card connector according to the present invention includes a storage portion in which a memory card having an engaged portion on a side edge portion can be inserted and removed, and a contact that is electrically connected to a terminal of the memory card inserted in the storage portion. A housing having an engaging portion that engages with and disengages from the engaged portion, and the inside of the storage portion slides together with the memory card in a state where the engaging portion is engaged with the engaged portion, The slider is movable to a non-conduction position where the terminal and the contact are not in contact with each other and a conduction position where the terminal and the contact are in contact with each other, and the slider is formed on an opposing surface of at least one of the upper surface and the lower surface of the housing. A single guide protrusion and at least one of the upper surface and the lower surface of the housing are movably engaged with the guide protrusion so that the slider is moved between the non-conductive position and the conductive position. A guide groove for moving and guiding, wherein the guide protrusion has a pair of side surfaces parallel to each other, and the guide groove is positioned when the slider is located at a position other than the non-conduction position. A movement guide portion having the same width and linear shape as the guide protrusion with which the protrusion engages, and a wider width than the guide protrusion with which the guide protrusion engages when the slider is located at the non-conductive position. A rotation allowing portion that allows the guide protrusion to rotate in a direction in which the engaging portion is engaged with the engaged portion and a direction in which the engaging portion is released, and between the housing and the slider. Further, an urging means for urging the slider to rotate in a direction in which the engaging portion engages with the engaged portion is provided.

  The housing preferably comprises an upper housing and a lower housing.

  It is preferable that the upper and lower surfaces of the slider are in contact with the upper and lower surfaces of the housing.

  One end portion is rotatably supported by the slider and the other end portion engages with a heart cam groove formed on the bottom surface of the storage portion, and the engagement position of the slider is changed by changing the engagement position with the heart cam groove. It is preferable to provide a cam bar for holding the position and releasing the holding.

  The urging means urges the slider at a position away from the rotation support portion of the cam bar, and the slider positioned at the non-conducting position can engage the engaged portion with the engaged portion. It is preferable to form a rotation stopper surface that contacts the slider and holds the rotation position of the slider when rotated to a position.

  Any of the memory card connectors can be mounted on a portable terminal.

When a pair of guide protrusions and a pair of guide grooves are formed on the housing and the slider, respectively, if the connector is downsized, the movable distance of the slider is shortened (below the distance between the pair of guide protrusions), and the memory If the number of card insertions / removals increases, the slider operation may become unsmooth, but the memory card connector of the present invention has only one guide protrusion and one guide groove, so there is room for such problems. There is no. That is, it is possible to lengthen the movable distance of the slider while reducing the size of the connector, and it is possible to operate the slider stably and smoothly even if the number of insertions / removals increases.
Moreover, since the guide protrusion itself can rotate in the guide groove at the non-conduction position, the rotation angle of the slider can be increased. Therefore, it is possible to provide a small connector having excellent workability for inserting and removing the memory card.
Furthermore, since the guide protrusion has a pair of side surfaces parallel to the moving direction of the slider and the movement guide part of the guide groove has the same width as the guide protrusion, there is one guide protrusion and one guide groove. Nevertheless, since the slider can be smoothly moved and guided without rotating or rattling at positions other than the non-conduction position, the memory card can be securely held in the housing.
In addition, since both side surfaces of the guide projection are flat surfaces parallel to both sides of the movement guide portion of the guide groove, even if the guide projection is slid relative to the movement guide portion, the guide projection is not easily worn and deformed. Therefore, even if the slider is repeatedly slid, the slider is less likely to become unsmooth.

  According to the third aspect of the present invention, the frictional resistance between the slider and the housing can be reduced, and rattling in the vertical direction can be suppressed, so that the movement of the slider becomes more stable.

  According to the fourth aspect of the present invention, the slider can be moved to the conducting position and the non-conducting position with a simple configuration, and the slider can be held at the conducting position and released.

According to the fifth aspect of the present invention, when the slider is located at the non-conductive position, the slider is continuously rotated in the direction in which the engaging portion engages with the engaged portion of the memory card by the urging force of the urging means. As a result, the slider rotates around the rotation support portion. Therefore, the holding force of the memory card by the slider when positioned at the non-conducting position is increased, and a good click feeling can be obtained when the engaging portion of the slider is engaged with the engaged portion of the memory card.
Further, when the memory card is ejected, it is possible to prevent the memory card from popping out of the connector and dropping off due to the urging force of the urging means.
Furthermore, since the slider does not move or rattle even when the memory card is not attached, it is possible to prevent the connector from generating abnormal noise when shaking or carrying an application such as a portable terminal.

1 is a perspective view of a connector and a microSD card according to an embodiment of the present invention. It is a disassembled perspective view of a connector. It is a top view of a slider. It is the perspective view seen from the lower side of the slider. It is a top view of a lower housing. FIG. 3 is a perspective view of a connector and a microSD card that are shown with the upper housing omitted. It is sectional drawing which follows the VII-VII arrow line of FIG. 6 which abbreviate | omits and shows a compression coil spring. It is a top view which shows the state of the initial state which inserted the microSD card in the connector, abbreviate | omitting an upper housing. FIG. 9 is a bottom view of the connector and the microSD card in the same state as in FIG. 8. FIG. 9 is a plan view similar to FIG. 8 when a slider is rotated by further inserting a microSD card into the connector. It is a bottom view similar to FIG. 9 in the same state as FIG. It is a top view similar to FIG. 8 when the engagement convex part of a slider and the engagement concave part of a microSD card | curd engage. FIG. 13 is a bottom view similar to FIG. 9 in the same state as FIG. 12. FIG. 9 is a plan view similar to FIG. 8 when the slider reaches the conduction position. It is a bottom view similar to FIG. 9 in the same state as FIG. It is a top view like FIG. 8 of a modification.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, the front and rear, top and bottom, and left and right directions are based on the directions of the arrows shown in FIG.
As shown in FIG. 2 and the like, the connector 10 of this embodiment is a connector for a microSD card MC and can be mounted on, for example, a mobile phone, a PDA, a personal computer, a digital camera, a digital video camera, a portable music terminal, or the like.
The connector 10 includes a lower housing 15, a slider 40, a cam bar 50, an upper housing 60, and a compression coil spring (biasing means) S1 as large components.
The lower housing 15 having a substantially rectangular shape in plan view is an integrally molded product made of an insulating synthetic resin material, and a portion surrounded by the rear wall 16, the left side wall 17 and the right side wall 18 is a storage portion whose front and upper surfaces are open. It is 19. A total of eight contacts 20 arranged in the left-right direction are provided in a row on the bottom surface of the lower housing 15. The front half part of each contact 20 is located in the storage part 19, and the front end part of each contact 20 is a contact end part 20a. Further, the rear end portion of each contact 20 is a tail portion 21 penetrating the rear wall 16 rearward, and each tail portion 21 is soldered to a circuit pattern of a circuit board (not shown). Further, three engaging projections 22 project from the outer surfaces of the left side wall 17 and the right side wall 18 respectively.
In the vicinity of the right corner on the rear side of the bottom surface of the lower housing 15, a rear partition wall 24 is formed so as to be parallel to the right side wall 18 and whose rear end is connected to the rear wall 16. Further, a front end wall 25 connected to the front end portion of the right side wall 18 protrudes from the right end portion of the front edge of the lower housing 15, and the right side wall 18, front side end wall 25, rear partition wall 24, and rear wall are provided. A portion surrounded by the right end portion of 16 is a spring accommodating space 26. A support shaft 27 extending toward the front is projected on the front surface of the right end portion of the rear wall 16, and a sliding contact rib 28 extending in the front-rear direction is projected on the bottom surface of the accommodation space 26.
On the bottom surface of the lower housing 15, a guide groove 29 that is positioned on the left side of the spring accommodating space 26 and extends in the front-rear direction is formed as a through groove. The guide groove 29 is connected to a moving guide portion 29a in which both left and right side surfaces extend linearly in the front-rear direction (parallel to each other) and a front end of the moving guide portion 29a, and has a left-right width that is greater than that of the movement guide portion 29a. And a guide allowing portion 29b having a wide trapezoidal shape.
A heart cam groove 30 having a substantially heart shape in a plan view is recessed in a portion located immediately after the guide groove 29 on the bottom surface portion of the lower housing 15. The heart cam groove 30 is a groove having a large number of steps recessed around the heart-shaped convex portion 31, an initial engagement portion 30 a forming the front end portion thereof, and a pushing-in passage portion positioned on the right side of the heart-shaped convex portion 31. 30 b, a holding portion 30 c located at the rear end of the heart-shaped convex portion 31, and a return passage portion 30 d located on the left side of the heart-shaped convex portion 31.
The left side wall 17 is integrally provided with a first switch terminal 33 having a tail portion (not shown). A second switch terminal 34 located inside the first switch terminal 33 is fitted and fixed in the mounting groove 32 that is recessed in the middle portion of the left side wall 17 in the front-rear direction. In the vicinity of the rear end portion of the second switch terminal 34, a pressed portion 35 protruding toward the right side is projected, a projection 36 is projected on the rear end portion of the outer side surface, and the front end portion is provided. Is formed with a tail portion 37. Both the tail portion (not shown) of the first switch terminal 33 and the tail portion 37 of the second switch terminal 34 are soldered to the detection circuit pattern on the circuit board.

On the lower surface of the slider 40, which is a molded product made of a synthetic resin material, a guide protrusion 41 is provided that is substantially the same width as the movement guide portion 29a of the guide groove 29 and has a shorter front-rear length than the movement guide portion 29a. The left and right side surfaces of the guide protrusion 41 are planes parallel to both side surfaces of the movement guide portion 29a and the left side surface of the guide allowance portion 29b, and the left and right width of the guide protrusion 41 is narrower than the guide allowance portion 29b. Since the guide protrusion 41 is slidably fitted in the guide groove 29, the slider 40 can slide on the bottom surface of the lower housing 15 along the movement guide portion 29a. Furthermore, when the guide protrusion 41 is positioned within the guide allowance 29b that is wider than the guide protrusion 41, the guide protrusion 41 (slider 40) can rotate relative to the guide allowance 29b. The position of the slider 40 when the guide protrusion 41 is positioned at a predetermined position in the movement guide section 29a is the conduction position (the position of FIGS. 14 and 15), and the guide protrusion 41 is positioned within the guide allowance section 29b. The position of the slider 40 at this time is the non-conducting position (the position shown in FIGS. 6 to 13). A memory card engagement portion 42 is provided at the left end portion of the slider 40, and the left side surface of the front end portion of the memory card engagement portion 42 is inclined at an angle of approximately 45 ° with respect to the front-rear direction and the left-right direction. It has become. Further, an engagement convex portion (engagement portion) 44 protruding toward the left is projected from the front end portion of the slider 40. On the rear surface of the right end portion of the slider 40, a support shaft 45 located in the spring accommodating space 26 is projected rearward when the guide protrusion 41 is engaged with the guide groove 29. Since both the front and rear ends of the compression coil spring S1 compressed from the free state are fitted to the spring support shaft 45 and the spring support shaft 27, the slider 40 is in a state where no external force other than the compression coil spring S1 is applied to the slider 40. Located in the non-conduction position.
On the upper surface of the rear end portion of the slider 40, a support concave portion (rotation support portion) 46 is recessed downward at a position offset from the spring support shaft 45 toward the storage portion 19 side. Further, on the upper surface of the slider 40 (when the guide protrusion 41 is engaged with the movement guide portion 29a), three sliding contact ribs 47 extending in the front-rear direction and having different lengths protrude. Three sliding contact ribs 48 that are parallel to the sliding contact ribs 47 and have different lengths are provided on the lower surface of the projection. When the guide protrusion 41 is engaged with the guide groove 29, each sliding contact rib 48 is slidably in contact with the bottom surface of the lower housing 15, and the bottom surface of the slider 40 (a part different from the sliding contact rib 48) is the lower housing. The slidable contact ribs 15 are slidably contacted.

The cam bar 50 is a member that links the heart cam groove 30 formed on the bottom surface of the lower housing 15 and the slider 40. That is, the cam bar 50 has a front end engagement protrusion 51 and a rear end engagement protrusion 52 that are bent downward at both front and rear ends thereof, and the front end engagement protrusion 51 rotates to the support recess 46 of the slider 40. The rear end engaging projection 52 is engaged with the heart cam groove 30 so as to be relatively movable.
Thus, the upper portion of the lower housing 15 that houses the slider 40, the compression coil spring S1, and the cam bar 50 is a press-formed product of a metal plate and is covered by the lower housing 15 and the upper housing (shell) 60 that constitutes the housing. ing. A plurality of engagement holes 61 are formed in the side wall of the upper housing 60, and a downward fitting projection 62 projects from the front end of the upper housing 60. Then, the corresponding engagement protrusions 22 of the lower housing 15 are fitted into the respective engagement holes 61, and the fitting protrusions 62 are fitted into the fitting recesses 23 recessed in the front end wall 25 of the lower housing 15. Thus, the upper housing 60 is mounted on the lower housing 15. When the upper housing 60 is attached to the lower housing 15, the sliding contact ribs 47 of the slider 40 come into contact with the ceiling surface of the upper housing 60. Further, two tail portions 63 project from the lower end portions of the left and right side walls of the upper housing 60, and these tail portions 63 are soldered to the ground pattern of the circuit board.
As shown in FIGS. 1 and 2, in the vicinity of the right corner of the rear end of the upper surface of the upper housing 60, a cantilevered leaf spring 64 is provided which is formed simultaneously with the molding of the upper housing 60 by the press molding. . The leaf spring 64 is an urging means that always presses the cam bar 50 toward the bottom surface side (downward) of the lower housing 15.

Next, an operation when the microSD card MC is inserted into and removed from the connector 10 having the above configuration will be described.
The microSD card MC has an engaging protrusion MC1 at the rear of the right edge thereof, and the rear surface of the engaging protrusion MC1 is an abutting inclined surface MC2. In addition, an engagement recess (engaged portion) MC3 located immediately before the engagement protrusion MC1 is formed in the right edge of the microSD card MC, and eight terminals MC4 are provided on the bottom surface of the microSD card MC. It is formed.
When the microSD card MC is not inserted into the connector 10 as shown in FIG. 1, the slider 40 is located at the non-conducting position as shown in FIGS. Further, since the front end engaging projection 51 and the supporting recess 46 of the cam bar 50 are rotatably engaged at a position offset to the left from the axis of the compression coil spring S1 (spring support shaft 27), the slider 40 is compressed. A clockwise urging force is received from the coil spring S1 in a plan view. Therefore, since the left side surface of the guide projection 41 of the slider 40 contacts the left side surface (rotation stopper surface) of the guide allowing portion 29b (see FIG. 13), the slide contact ribs 47 and 48 of the slider 40 face in the front-rear direction. It is held in the rotational position. The rear end engaging protrusion 52 of the cam bar 50 is engaged with the initial engaging portion 30a of the heart cam groove 30 (see FIGS. 6 and 7).
In this state, when the microSD card MC is inserted into the storage portion 19 from the front opening of the connector 10 and pushed backward, the contact inclined surface MC2 of the engagement protrusion MC1 of the microSD card MC is engaged with the engagement convex portion 44 of the slider 40. The slider 40 is urged to rotate counterclockwise in plan view with the support recess 46 as the center of rotation. Then, as shown in FIG. 9, the guide protrusion 41 that has been parallel to the movement guide portion 29a until then rotates within the guide allowing portion 29b, so that the slider 40 rotates counterclockwise in plan view as shown in FIG. To do. When the microSD card MC is further pushed backward, the guide protrusion 41 further rotates in the guide allowing portion 29b as shown in FIG. 11, so that the slider 40 further rotates counterclockwise in plan view as shown in FIG. In addition, the side surface of the engagement protrusion MC1 contacts the side surface of the engagement protrusion 44. When the microSD card MC is further pushed rearward, the engagement protrusion MC1 gets over the engagement protrusion 44 as shown in FIG. 12, and enters the recess between the engagement protrusion 44 of the slider 40 and the memory card engagement portion 42. Since the engaging inclined surface MC2 and the inclined surface 43 are in contact with each other and the engaging convex portion 44 is engaged with the engaging concave portion MC3, the slider 40 is rotated clockwise in plan view by the biasing force of the compression coil spring S1. To do. Therefore, the sliding contact rib 47 and the sliding contact rib 48 of the slider 40 are directed again in the front-rear direction, and the rear portion of the guide projection 41 is engaged with the front end portion of the movement guide portion 29a as shown in FIG. The left side surface of the portion 41 contacts the left side surface of the guide allowing portion 29b.
As described above, when the microSD card MC is integrated with the slider 40 by the engagement protrusion MC1 of the microSD card MC being engaged with the concave portion of the slider 40, the microSD card MC is further pushed backward, so that the initial engagement portion 30a Since the rear end engagement protrusion 52 of the cam bar 50 that has been engaged with the front end moves rearward while engaging the initial engagement portion 30a and the pushing-in passage portion 30b, the cam bar 50 and the slider 40 are moved to the lower housing 15. On the other hand, it slides linearly backward. Then, after the rear end engaging protrusion 52 moves to the rear end of the pushing-in passage portion 30b (the portion located behind the heart-shaped convex portion 31) and then releases the backward pressing force on the microSD card MC, the compression is performed. Since the rear end engaging protrusion 52 of the cam bar 50 pressed forward by the urging force of the coil spring S1 engages with the holding portion 30c of the heart cam groove 30, the forward movement of the cam bar 50 is restricted. Therefore, the slider 40 is held at the conducting position shown in FIGS. 14 and 15, and each terminal MC <b> 4 comes into electrical conduction when it contacts the contact end 20 a of the corresponding contact 20.
Further, when the slider 40 moves to the conduction position, the left side surface of the front end portion of the microSD card MC presses the pressed portion 35 of the second switch terminal 34 to the left side, so that the protrusion 36 is located on the right side surface of the first switch terminal 33. Touch the front edge. Then, since a detection signal is sent to the control unit of the electronic device (mobile phone, personal computer, digital camera, etc.) on which the connector 10 is mounted through the detection circuit pattern formed on the circuit board, the control unit is connected to the microSD card MC. It is detected that the contact 20 is electrically conducted.

With the slider 40 held in the conducting position by the rear end engaging protrusion 52 and the holding portion 30c of the cam bar 50, the slider 40 is pushed back again against the forward biasing force of the compression coil spring S1, and further the microSD card When the rearward pressing force on the MC is released, the rear end engaging projection 52 moves away from the holding portion 30c to the return passage portion 30d side by the forward biasing force of the compression coil spring S1, and the return passage portion 30d. And automatically moves to the front end of the initial engaging portion 30a. Accordingly, the slider 40 returns to the non-conductive position shown in FIGS. 12 and 13, and the contact between the terminals of the microSD card MC and each contact 20 is released. Furthermore, the left side surface of the front end portion of the microSD card MC is separated from the pressed portion 35 of the second switch terminal 34, and the protrusion 36 of the second switch terminal 34 is separated from the front end portion of the right side surface of the first switch terminal 33. The control unit of the electronic device detects that the card MC and the contact 20 are in a non-conductive state.
After the slider 40 returns to the non-conducting position in this way, if the microSD card MC is grasped by hand and pulled out further forward, the engaging protrusion MC1 presses the engaging protrusion 44 of the slider 40 forward, and the slider 40 Rotates counterclockwise in plan view. Then, since the engagement protrusion MC1 gets over the engagement protrusion 44 forward, the microSD card MC can be taken out from the connector 10 forward. When the microSD card MC is taken out, the slider 40 is rotated again to the position shown in FIG. 6 by the urging force of the compression coil spring S1.

As described above, in this embodiment, since the guide groove 29 formed in the lower housing 15 and the guide protrusion 41 formed in the slider 40 are both one, a pair of the housing and the slide is connected like the connector of Patent Document 1. There is no room for problems as in the case of forming the guide protrusions and the pair of guide grooves. That is, the movable distance of the slider 40 can be increased after the connector 10 is downsized.
Furthermore, the guide protrusion 41 has a pair of side surfaces parallel to the moving direction of the slider 40 (extension direction of the movement guide portion 29a), and the guide protrusion 41 is the same width as the movement guide portion 29a of the guide groove 29. Although the guide protrusion 41 and the guide groove 29 are each one, the slider 40 can be smoothly moved and guided without rotating or rattling at positions other than the non-conductive position, and the microSD card MC can be accommodated in the housing (lower housing). 15 and the upper housing 60).
In particular, in the inserted state of the microSD card MC (FIGS. 14 and 15), there is a possibility that a general user may perform an erroneous operation of forcibly pulling out the microSD card MC, that is, a so-called forced extraction operation. However, since the rotation is restricted by the movement guide portion 29a, there is no possibility that the microSD card MC is easily removed. Moreover, since the guide protrusion 41 can be formed long, damage to the guide 41 can be suppressed.
In addition, since both side surfaces of the guide projection 41 are flat surfaces parallel to both sides of the movement guide portion 29a, the side surfaces of the guide projection portion 41 are not easily worn even if the guide projection portion 41 is slid with respect to the movement guide portion 29a. For this reason, even if the slider 40 is repeatedly slid, the possibility that the shape of the slider 40 changes or the operation becomes unsmooth is low.
Further, since the guide projection 41 itself of the slider 40 rotates within the rotation allowance portion 29b, the rotation angle of the slider 40 can be increased. Thereby, even in the small connector 10, the insertion / removal workability of the microSD card MC can be improved.
Further, since the sliding contact ribs 47 and the sliding contact ribs 48 formed on the upper and lower surfaces of the slider 40 are in contact with the bottom surface of the lower housing 15 and the ceiling surface of the upper housing 60, the slider 40 is attached to the lower housing 15 and the upper housing 60. And can be slid in a stable state.
Moreover, when the slider 40 is located at the non-conducting position, the slider 40 is seen in a plan view by urging forward the position where the compression coil spring S1 is shifted to the right from the support recess 46, which is the rotation center of the slider 40. Therefore, a rotational moment is always generated in the slider 40 in the direction in which the concave portion of the slider 40 and the engaging protrusion MC1 of the microSD card MC are engaged. Therefore, since the holding force of the microSD card MC by the slider 40 when located at the non-conduction position is increased, a good click feeling is obtained when the concave portion of the slider 40 is engaged with the engagement protrusion MC1 of the microSD card MC. I can do it. Further, when the microSD card MC is ejected, it can be prevented that the microSD card MC jumps out of the connector 10 and falls off due to the urging force of the compression coil spring S1. Further, even when the microSD card MC is not installed, the slide 40 is constantly subjected to a rotational moment, so it does not move or shake, so when swinging or carrying an application such as a portable terminal equipped with the connector 10. It is possible to prevent abnormal noise from being generated from the connector 10.

The present invention is not limited to this embodiment, and can be implemented with various modifications.
For example, as shown in FIG. 16, the right end portion of the compression coil spring S <b> 2 may be fixed to the inner surface of the front end portion of the right side wall 18 of the lower housing 15. In this way, when the slider 40 is located at the conducting position, the slider 40 is separated backward from the compression coil spring S2, and when the slider 40 is moved to the non-conducting position, the compression coil spring S2 is moved by the right side surface of the slider 40. Since it is compressed, the left end (free end) of the compression coil spring S2 urges the slider 40 to rotate clockwise in plan view. In this manner, the slider 40 is rotated not only by the compression coil spring S1 but also by the compression coil spring S2, so that the engagement force between the slider 40 and the microSD card MC can be increased. Become.
Further, when the slider 40 located at the non-conduction position rotates most counterclockwise in plan view (when the state shown in FIG. 10 is reached), a gap between the right side surface of the slider 40 and the inner side surface of the right side wall 18. In order to eliminate this, the portion of the inner side surface of the right side wall 18 may protrude to the left side, and the rotation of the slider 40 may be restricted by the portion. With this configuration, the rigidity of the lower housing 15 is improved. For example, when a large force is generated between the slider 40 and the lower housing 15 by inserting and removing the microSD card MC in an oblique direction with respect to the connector 10. It is possible to prevent the lower housing 15 from being damaged.

Alternatively, a groove corresponding to the guide groove 29 may be formed in the upper housing 60, and a protrusion corresponding to the guide protrusion 41 may be formed on the surface of the slider 40 facing the upper housing 60. Furthermore, grooves corresponding to the guide grooves 29 may be formed in both the lower housing 15 and the upper housing 60, and protrusions corresponding to the guide protrusions 41 may be formed on both upper and lower surfaces of the slider 40.
Further, the compression coil spring S1 and the compression coil spring S2 may be configured by another type of urging means (for example, a tension spring).
Further, a compression coil spring (brake urging means) having a smaller urging force than the compression coil spring S <b> 1 may be provided between the front end wall 25 and the front end of the slider 40.
In addition, the connector 10 of the present embodiment is for the microSD card MC, but may be implemented as a connector for other memory cards (SD card, miniSD card, microSD card, memory stick, xD picture card, MMC, etc.). Of course it is possible.

DESCRIPTION OF SYMBOLS 10 Connector 15 Lower housing 16 Rear wall 17 Left side wall 18 Right side wall 19 Storage part 20 Contact 20a Contact end part 21 Tail part 22 Engaging protrusion 23 Fitting recessed part 24 Rear partition wall 25 Front side end wall 26 Spring accommodating space 27 Spring support shaft 28 Rib 29 for sliding contact Guide groove 29a Movement guide part 29b Rotation allowing part 30 Heart cam groove 30a Initial engagement part 30b Pushing passage part 30c Holding part 30d Returning passage part 31 Heart-shaped convex part 32 Mounting groove 33 First switch terminal 34 Second switch terminal 35 Pressed portion 36 Protrusion 37 Tail portion 40 Slider 41 Guide protrusion 42 Memory card engagement portion 43 Inclined surface 44 Engagement projection (engagement portion)
45 Spring support shaft 46 Recess for support (rotation support)
47 48 Sliding contact rib 50 Cam bar 51 Front end engagement protrusion 52 Rear end engagement protrusion 60 Upper housing (shell)
61 engaging hole 62 fitting protrusion 63 tail part 64 leaf spring MC microSD card (memory card)
MC1 engagement protrusion MC2 contact inclined surface MC3 engagement recess (engaged portion)
MC4 terminal S1 compression coil spring (biasing means)
S2 compression coil spring (rotation biasing means)

Claims (6)

A housing having a storage portion into which a memory card having an engaged portion at a side edge portion can be inserted and removed, and a contact electrically connected to a terminal of the memory card inserted into the storage portion;
An engaging portion that engages with and disengages from the engaged portion, and slides in the storage portion together with the memory card with the engaging portion engaged with the engaged portion, and the terminal and the contact A slider that can be moved to a non-conductive position where the terminal is in non-contact and a conductive position where the terminal and the contact are in contact;
A single guide protrusion formed on a surface of the slider facing the at least one of the upper surface and the lower surface of the housing;
A single guide groove formed on at least one of the upper surface and the lower surface of the housing, wherein the guide protrusion is movably engaged to move and guide the slider between the non-conductive position and the conductive position; With
The guide protrusion has a pair of side surfaces parallel to each other;
The guide groove engages with the guide projection when the slider is positioned at a position other than the non-conduction position, and has a linear guide with the same width and linear shape as the guide projection. The guide projection engages when positioned at a position, wider than the guide projection, the guide projection engaging the engagement portion with the engaged portion, and the engagement releasing direction. A rotation permitting portion that allows rotation to
A connector for a memory card, characterized in that an urging means is provided between the housing and the slider to urge the slider in a direction in which the engaging portion engages with the engaged portion. The memory card connector according to claim 1,
A memory card connector, wherein the housing includes an upper housing and a lower housing. The memory card connector according to claim 1 or 2,
A memory card connector in which upper and lower surfaces of the slider are in contact with upper and lower surfaces of the housing. The memory card connector according to any one of claims 1 to 3,
One end portion is rotatably supported by the slider and the other end portion engages with a heart cam groove formed on the bottom surface of the storage portion, and the engagement position of the slider is changed by changing the engagement position with the heart cam groove. A memory card connector comprising a cam bar for holding the position and releasing the holding. The memory card connector according to claim 4, wherein
The biasing means biases a position of the slider that is out of the rotation support portion of the cam bar,
A rotation stopper for holding the rotating position of the slider in contact with the slider when the slider positioned at the non-conducting position rotates on the housing to a position where the engaging portion can engage with the engaged portion. A memory card connector with a surface. A portable terminal comprising the memory card connector according to claim 1.

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