TWI543455B - Card plugin - Google Patents

Description

Card plugin

The present invention relates to a card connector installed in various electronic devices such as a portable telephone, a PDA (personal digital assistants), a portable digital acoustic player, a game machine device, a digital camera, and an information terminal device. Use the IC card to make an electrical connection between the IC card and the device.

The IC card is embedded in an IC (integrated circuit). As a type of IC card, a memory card using a nonvolatile memory is widely used. A memory card such as an SD memory card is used as a removable recording medium, and is used in a portable digital acoustic player, a digital camera, or the like. Further, in the portable telephone, a SIM card (user identity module card, or a subscriber identity module card) that records the user's unique ID number is used.

The IC card is set to be inserted/extracted with respect to the card plug-in. For example, it is known to insert/extract an IC card or an IC card mounted on an adapter with respect to a housing by a so-called push-in/out mode using a locking mechanism of a heart-shaped cam.

For example, Patent Document 1 describes a card insert having a slider made of a resin, and when the IC card is pushed, the slider is engaged with the side surface of the IC card and slides together. The spring always gives the force of the discharge direction to the slider. A pin that is rotatably fixed at one end is provided on the inner side of the casing of the resin molded product having the card storage space, and the other end of the pin is inserted into a cam groove formed in the slider to slide in the cam groove.

[Patent Document 1] Japanese Patent No. 4864451

In the card insert of Patent Document 1, the bottom of the housing of the sliding portion of the slider is thin, and there is a fear that the strength of the housing is lowered. Furthermore, the slider itself forms a cam groove, so that it is necessary to make the slider large to some extent. As a result, the area of the thin-walled region having a width corresponding to the width of the slider is relatively wide. As a result, the soldering process of soldering the card insert to the printed wiring substrate is performed. After that, there is a danger that the casing curvature becomes large.

The present invention has been made in view of such problems in the prior art, and an object thereof is to provide a card insert that can solve the above-described problems of the conventional card insert.

In order to solve the above problems, the card insert of the present invention includes a case, a card inserted into a card body or a disk on which a card body is placed, a flat storage space in which the card body or the disk can be accommodated, and a guide rail in the case. The body is formed to extend along the insertion/extraction direction; the slider slides on the guide rail in conjunction with the insertion/extraction of the card body or the disk; and an energizing member that energizes the slider in the pushing direction.

According to the present invention, the area of the bottom plate which becomes the thin-walled region can be made narrow in the card storage space, and the warpage after reflow soldering can be suppressed. Furthermore, the strength of the region can be increased, so that it is not necessary to form the bottom plate from a metal plate. Further, the groove portion formed on the surface of the guide rail communicates with the common groove portion of the cam groove, so that the movable range of the lock pin can be made long.

1‧‧‧ card plugin

2‧‧‧Insulation board

3‧‧‧Shield

4‧‧‧ card insertion port

5‧‧‧IC card

7a‧‧‧floor

7b‧‧‧ right wall

7f‧‧‧ side wall

8‧‧‧Coil spring

9‧‧‧ Slider

10a~10f, 10‧‧‧ contacts

11‧‧‧Directional pin (locking pin)

12‧‧‧ pin guiding slot

13‧‧‧heart cam

16‧‧‧Go back to the common slot department

18‧‧‧ switch

21‧‧‧Sliding section

22‧‧‧ Arms

30‧‧‧ rib

31‧‧‧Spring storage parts

1 is a six side view of a card insert in accordance with an embodiment of the present invention.

2 is a cross-sectional view of a card insert in accordance with an embodiment of the present invention.

Figure 3 is a perspective view of a card insert in accordance with an embodiment of the present invention.

Fig. 4 is a plan view showing a state in which a shield cover of a card insert according to an embodiment of the present invention is removed.

Fig. 5 is a perspective view showing a state in which a shield cover of a card insert according to an embodiment of the present invention is removed.

Figure 6 is a partially enlarged plan view of Figure 4.

Fig. 7 is a plan view for explaining a heart shaped cam.

Fig. 8 is a perspective view showing the state in which the shield cover of the card insert according to the embodiment of the present invention is removed and the state of the guide pin is removed.

Figure 9 is a partially enlarged perspective view of Figure 8.

Figure 10 is a view showing a state in which a shield cover of a card insert according to an embodiment of the present invention is removed and removed A perspective view of the slider state.

Fig. 11 is a perspective view showing the state in which the shield cover of the card insert according to the embodiment of the present invention is removed and the state of the slider is removed.

Figure 12 is a partially enlarged perspective view of Figure 11.

Figure 13 is a partially enlarged perspective view of Figure 12.

Fig. 14 is a partially enlarged plan view for explaining an effect of an embodiment of the present invention.

Fig. 15 is a plan view showing the state in which the shield cover of the card insert according to the embodiment of the present invention is removed, and the state of the slider and the guide pin are removed.

Figure 16 is a partially enlarged perspective view of Figure 15.

17A and 17B are partially enlarged cross-sectional views showing a card insert according to an embodiment of the present invention.

Figure 18 is a six-side view of a slider according to an embodiment of the present invention.

Figure 19 is a perspective view of a slider according to an embodiment of the present invention.

Figure 20 is a perspective view of a slider according to an embodiment of the present invention.

Figure 21 is a perspective view of a slider according to an embodiment of the present invention.

Embodiments of the present invention will be described below with reference to the drawings. The embodiments described below are suitable specific examples of the present invention, and various technical limitations are imposed on constituent elements, types, combinations, shapes, relative arrangements, and the like, but these are merely examples, and the present invention is not limited thereto.

[1. One embodiment]

A card insert according to an embodiment of the present invention will be schematically explained with reference to Figs. Figure 1 is a six-sided view of the card insert 1. The card insert 1 includes an insulating plate 2, and a shield cover 3 disposed opposite the insulating plate 2. The housing is constituted by the insulating plate 2 and the shield case 3. The insulating sheet 2 is a molded article of, for example, a liquid crystal polymer. The shield case 3 is formed by bending a metal such as stainless steel.

The IC card 5 (indicated by a chain double-dashed line), for example, a SIM card, is inserted into the card housing recess formed inside the casing from the card insertion opening 4 at one end surface of the casing. Regarding the IC card 5, two positions of the discharge position and the insertion position are shown. The shield case 3 is formed with a window portion 6 facing the external connection terminal, and the external connection terminal is led out from a contact that contacts the pin of the IC card 5. In the present specification, the side of the card insertion opening 4 is referred to as the front or the front, and the opposite side of the card insertion opening is referred to as the rear or the back, and is inserted from the card. Look at the mouth, the right side is called the right or right side, and the left side is called the left or left side.

As a SIM card, there is a micro SIM card having a smaller shape than a standard SIM card, or a nano SIM card smaller than a micro SIM card. The SIM cards are different in size, but the physical characteristics such as the pin configuration are the same as each other. The invention is applicable to any SIM card. Further, it is also applicable to other IC cards such as an SD memory card. Further, the present invention can be applied even when an IC card having a different size is attached to an adder and used in the same manner as a standard IC card. Further, the present invention can be applied even when a card insert is provided with a disk and the IC card is placed on the disk. The card body means an IC card or an adder.

An embodiment of the present invention will be described in detail with reference to Fig. 4 and subsequent drawings. In these figures, the insulating sheet 2 in which the shield case 3 is removed is shown. The insulating plate 2 integrally forms a bottom plate 7a, a right side wall 7b, a left side wall 7c, a rear wall 7d, and a front wall 7e adjacent to the card insertion opening 4, thereby forming a storage space in which the IC card 5 can be housed. The shield case 3 is attached to the insulating plate 2 and fixed by welding or the like.

A slider 9 is provided, and the slider 9 is energized toward the card discharge direction by the coil spring 8. The coil spring 8 is housed in a metal spring housing member having a U-shaped groove. The spring housing member is made of metal and is integrally formed with the insulating sheet 2 by insert molding. The right side wall 7b is formed by the wall on the right side of the spring housing member. The left side wall 7c is a metal piece integrally formed with the insulating sheet 2 by insert molding.

On the SIM card, 8 pins (also called electrodes, terminals, pads) are formed by gold plating, and each pin is assigned as a data input/output terminal, a ground terminal, a power input terminal, etc. For example, in a portable telephone In the case of the SIM card used, six pins are actually used in the eight pins. Corresponding to the pin configuration of the SIM card, six contacts 10a, 10b, 10c, 10d, 10e, 10f are respectively provided on the insulating plate 2. When it is not necessary to separately distinguish the contact occasion, it is simply referred to as the contact 10.

The contact 10 is, for example, a spring contact made of phosphor bronze, which is cut from the bottom surface of the casing, and the front end is provided as a contact surface with the pins of the SIM card. The other end of the contact 10 is led to the lower side of the insulating plate 2, facing the window portion 6 formed on the insulating plate 2. The other end of the contact 10 is soldered to the wiring pattern on the printed wiring board provided in the casing, and is electrically connected between the IC card 5 inserted into the card insert 1 and the printed wiring board. The contact 10 is provided on the insulating plate 2 by, for example, insert molding. Metal parts other than the contacts 10 are also inserted into the insulating plate 2 by insert molding. However, components such as the coil spring 8, the slider 9, and the guide pin (locking pin) are different from the insulating plate 2.

According to an embodiment of the present invention, an IC card is inserted/extracted by a push-in/out mode. That is, in the push/pull method, the press-in action and the pull-out action are performed by repeating the operation force in the same direction. Work. Specifically, a heart-shaped cam type push-in/out mechanism is used.

The slider 9 is in contact with the IC card, and is a metal member that reciprocates in conjunction with the insertion/extraction of the IC card 5. The slider 9 is energized by the coil spring 8 in the ejecting direction at all times. The coil spring 8 is disposed in a metal spring housing member. As shown in Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 15, and Fig. 16, the right side wall 7b is a wall of the spring housing member, and the side wall 7f is the right side wall 7b of the spring housing member. Parallel to the other wall. The coil spring 8 is housed in a groove between the right side wall 7b and the side wall 7f.

The slider 9 has a substantially L-shaped shape in which the rear wall 7d is set to the lower side. The slider 9 is constituted by drawing and bending a metal such as stainless steel. It includes a sliding portion 21 corresponding to the L-shaped vertical line, and an arm portion 22 corresponding to the L-shaped horizontal line. The abutting portion at the front end of the IC card 5 is brought into contact with the front end of the arm portion 22 of the slider 9. When the IC card 5 is inserted into the card storage space, the slider 9 and the IC card 5 are integrally slid rearward in opposition to the energizing direction of the coil spring 8.

One end of the guide pin 11 is rotatably inserted with respect to the hole formed in the slider 9. That is, one end of the guide pin 11 is bent, and one end is inserted into the support hole of the slider 9, and the center axis of rotation of the guide pin 11 is formed. The other end of the guide pin 11 is freely rotatable, and the end of the curved guide pin 11 is inserted into the common groove portion 16 of the pin guide groove 12. The pin guide groove 12 is formed on the insulating plate 2 on the side of the rear wall 7d.

Figure 7 only shows the locking mechanism formed by the heart shaped cam. The pin guide groove 12 is provided with the outward path guiding groove portion 14 and the circuit guiding groove portion 15 on both sides of the heart-shaped heart-shaped cam 13, and the merging portion of the outward path guiding groove portion 14 and the circuit guiding groove portion 15 is provided. The common groove portion 16 is returned. 8 and 9, the state in which the guide pin 11 is removed from the shared groove portion 16 is clearly shown, and the state in which the slider 9 and the guide pin 11 are removed from the shared groove portion 16 is clearly shown in Figs. 15 and 16 .

The end of the guide pin 11 is inserted into the pin guide groove 44, and the end portion is circulated along the outward path guide groove portion 14 and the circuit guide groove portion 15. The push-in/out mechanism is constituted by the pin guide groove 12 and the end of the guide pin 11. The step portions 17a, 17b, 17c, and 17d for restricting the movement direction are provided on the bottom surfaces of the outward path guiding groove portion 14, the circuit guiding groove portion 15, and the returning common groove portion 16, so that the end portion of the guide pin 11 is along the above The outward guiding groove portion 14, the circuit guiding groove portion 15, and the returning common groove portion 16 are not reversely returned in the cycle.

The segment portion 17a is provided such that the end portion of the guide pin 11 that reaches the distal end side of the outward path guiding groove portion 14 does not return to the side of the outward guiding groove portion 14, but faces the concave portion of the heart-shaped cam 13 The return stop position c is stopped. The segment portion 17b is provided such that the end portion does not return to the segment portion 17a side from the stop returning stop position c. The segment portion 17c is provided such that the end portion of the guide pin that advances from the stop return stop position c toward the circuit guide groove portion 15 does not return to the stop return stop position c. The segment portion 17d is provided such that the end portion of the guide pin that enters the outward path guiding groove portion 14 and the returning common groove portion 16 from the end of the circuit guiding groove portion 15 does not return to the circuit guiding groove portion 15.

In the state in which the IC card 5 is pushed out, that is, in a state where the IC card 5 is moved in the pull-out direction, the end of the guide pin 11 is located at the push-out stop position a. Then, when the push-in operation, that is, the push-in operation, is performed, the end portion passes through the outward guide groove portion 14 and reaches the push-in press operation end stop position b. When the push-in operation force is released at this position, the screw is broken. The spring force of the spring 8 reaches the stop return stop position c.

Next, the end portion of the guide pin 11 reaches the push-in press operation end stop position d by the reinjection operation of the memory card for releasing the engagement, that is, the push-out operation. Then, by releasing the press-fitting operation force, the end portion is returned to the push-out stop position a by the return-guiding groove portion 15 due to the spring force of the coil spring 8.

Further, as shown in FIG. 13, FIG. 16, FIG. 17A, and FIG. 17B, the rib 30 extending from the card insertion opening 4 to the rear wall 7d in the insertion direction is integrally formed on the insulating sheet 2. Between the rib 30 and the side wall 7f of the spring housing member 31, the common groove portion 16 of the pin guide groove 12 is formed. The sliding end of the guide pin 11 and the projection 27 of the slider 9 are inserted into the common groove portion 16. The side walls 23a and 23b of the sliding portion 21 of the slider 9 slide across the rib 30 and the side wall 7f. The rib 30 and the side wall 7f constitute a guide rail. In FIGS. 17A and 17B, the coil spring 8 disposed in the groove of the spring housing member 31 is omitted.

As shown in Fig. 17B, a groove portion communicating with the above-described returning common groove portion 16 is formed on the surface of the guide rail. In conjunction with the insertion or extraction of the card body or the disk, the sliding end of the locking pin slides on the groove portion and the returning common groove portion 16.

The coil spring 8 is housed in a housing groove having a U-shaped cross section, and one of the groove portions formed on the surface of the rail is constituted by a wall of the housing groove.

Further, due to the spring force of the coil spring 8, a force that causes the slider 9 to rotate is generated. In one embodiment, the sliding end portion of the guide pin 11 is inserted into the common groove portion 16 between the rib 30 and the side wall 7f, so that even if the biasing force is applied to the slider 9 due to the spring force of the coil spring 8, Can prevent the slider 9 from being unstable. Furthermore, the protrusion 27 of the slider 9 is also inserted into the returning common groove portion 16 Therefore, the slider 9 can be further slid stably.

The rib 30 forms a groove portion constituting a part of the pin guide groove 12, and is formed in the sliding portion of the slider 9, so that even if the region of the bottom plate 7a is made thin, the insulation plate 2 can be prevented from being warped during the reflow soldering process. song.

In an embodiment of the present invention, since the pin guide groove 12 is formed on the inner side of the insulating plate 2, the slider 9 is miniaturized, and the necessary pushing amount of the card for pushing in can be increased (position a in Fig. 7 and Between positions b) and the amount of discharge of the card (between position d and position a in Fig. 7). Therefore, when an IC card having a smaller shape than a regular IC card is inserted by mistake, the IC card can be surely discharged.

In one embodiment of the present invention, the switch 18 for detecting whether or not the IC card 5 is pushed in relative to the card insert is provided in the card storage space. In other words, the switch 18 that is switched in conjunction with the movement of the insertion/extraction direction of the IC card detects the insertion/extraction state of the IC card 5, and the detection result is used for switching control of the charged/non-charged state of the signal transmission contact 10. Wait.

The switch 18 is composed of a first contact 19 and a second contact 20. The first contact 19 and the second contact 20 are spring contacts made of phosphor bronze, and are provided in the rear of the card housing recess of the insulating plate 2 by insert molding. The terminal electrically connected to the first contact 19 and the terminal electrically connected to the second contact 20 are led out to the side surface or the bottom surface of the insulating plate 2, and are connected to the external printed wiring board.

The first contact 19 is a leaf spring having a plate surface substantially orthogonal to the insertion/extraction direction of the IC card 5, and the base portion is fixed to the insulating plate 2 by insert molding in the vicinity of the rear wall 7d of the card housing recess. A semicircular projection is provided at a front end of the plate-shaped spring portion of the first contact 19. Further, the bending is such that the front end is parallel to the card insertion/extraction direction. The semicircular protruding portion is an operation portion that is in contact with the front end surface of the IC card 5.

The first contact 19 includes a slit-like slit, and the other end thereof is open, extending from the other end side of the first contact 19 toward one end side. The slit is formed at an intermediate position of the width of the first contact 19, and has a shape in which the opening width gradually decreases from the other end side of the first contact 19 toward the one end side. The lower end surface of the other end of the first contact 19 is a contact portion that is in contact with the second contact 20. The contact portion has an inclination along an inclined contact surface of the second contact 20.

The rear wall 7d of the insulating plate 2 is in contact with each other to form a window portion, and a plate spring is provided which has a plate surface parallel to the insertion/extraction direction of the card and protrudes toward the rear wall 7d. The central portion of the plate spring is cut and set as the second contact 20. The second contact 20 is a chopping piece having an inclined surface, the inclination The surface rises from the base of the card insertion opening side toward the free end of the rear wall 7d side. The contact portion of the first contact 19 is made to be in contact with the inclined surface. Further, the inclination is different such that the vicinity of the free end of the second contact 20 is further upward. This is to cause a larger contact pressure near the front end of the inclined surface of the second contact 20 when the contact portion of the first contact 19 slides along the inclined surface of the second contact 20, so that the first touch The contact between the head and the second contact is stable.

FIG. 5 shows the position of the first contact 19 which changes in accordance with the mounting state of the IC card 5. The first contact 19a indicates a state in which the insertion of the IC card 5 is not completed, that is, a position in which the card is pushed out. In the card push-out state, the first contact 19 and the second contact 20 are in a non-contact state, and the switch is in an open state (normally open). The first contact 19b indicates the position at which the IC card 5 is pushed in. Next, the IC card 5 is pushed in, and the first contact 19c indicates the position at the end state of the mounting. In this state, the first contact 19 and the second contact 20 are in contact with each other in a switch-on state.

An example of the slider 9 will be described with reference to Figs. 18 to 21 . The side walls 23a and 23b of the sliding portion 21 which are opposed to the bottom plate 7a of the insulating plate 2 and project in parallel toward the inner surface side are integrally formed. The front end of the front side of one side wall 23a is bent to form a spring receiving portion 24. The bending angle of the corner portion 25 from the side wall 23a to the spring receiving portion 24 with respect to a right angle has a curvature.

On the arm portion 22 side of the sliding portion 21, a support hole 26 for the fixed end of the guide pin 11 is formed. The sliding end of the guide pin 11 slides on the pin guide groove 12 of the heart cam as a locking mechanism. In the vicinity of the support hole 26, a projection 27 that protrudes obliquely toward the inner side is formed.

The side wall 23b is extended to form the arm portion 22. The angle of curvature of the corner portion 28 from the side wall 23b to the arm portion 22 with respect to a right angle has a curvature. The front end surface which is extended to the side wall 23b of the arm portion 22 becomes the card receiving portion 29. The abutting portion of the IC card 5 is in contact with the card receiving portion 29, and as the IC card 5 is pushed, the slider 9 moves inward. The corner portion 28 is located at the connection sliding portion 21 and the arm portion 22, and has a side wall 23b continuous with the corner portion 28, and has a L-shaped cross section. Thereby, the bending rigidity of the slider 9 at the time of card insertion can be improved, and the edge of the slider 9 is not exposed at the time of sliding, so that the slider 9 can be smoothly slid without worrying about the edge grinding groove wall at the time of sliding.

[2. Modifications]

Although the embodiments of the present invention have been specifically described above, the present invention is not limited to the above embodiments, and various modifications can be made based on the technical idea of the present invention. For example, in the above embodiment The guide rail having the groove portion is formed by the rib 30 and the side wall 7f of the spring housing member 31. As in the embodiment, the strength of the guide rail can be maintained by the metal spring housing member 31. However, the insulating plate 2 may be formed as both a rib as a guide rail and a groove portion at the center of the rib.

The configurations, methods, steps, shapes, materials, numerical values, and the like listed in the above embodiments are merely examples, and different configurations, methods, steps, shapes, materials, numerical values, and the like may be used as needed.

2‧‧‧Insulation board

7b‧‧‧ right wall

7f‧‧‧ side wall

9‧‧‧ Slider

16‧‧‧Go back to the common slot department

21‧‧‧Sliding section

23a‧‧‧ Sidewall

23b‧‧‧ Sidewall

30‧‧‧ rib

31‧‧‧Spring storage parts

Claims (6)

A card insert comprising: a casing, a card inserted into the card body or a disk on which the card body is placed, a flat storage space capable of accommodating the card body or the disk; and a guide rail inserted and extracted along the casing The direction is extended; the slider slides on the guide rail in conjunction with the insertion/extraction of the card body or the disk; and an energizing member that energizes the slider in the pushing direction. The card insert of claim 1, wherein the slider is made of metal and slides across the rail. The card insert according to claim 2, further comprising: a spring as the energizing member; and a locking mechanism for locking the push-in state of the card body or the disk. The card insert according to claim 3, wherein the locking mechanism is a locking mechanism formed by a heart-shaped cam, and a cam groove is formed in a rear region of the casing; one end of the locking pin is fixed to the slider, The sliding end of the locking pin is inserted into the cam groove. The card insert according to claim 4, wherein the groove portion communicating with the common groove portion is formed on the surface of the guide rail; and the locking pin is interlocked with the insertion/extraction of the card body or the disk. The sliding end slides on the groove portion and the returning common groove portion. The card insert according to claim 5, wherein the spring-type coil spring is housed in a U-shaped receiving groove; and one of the groove portions formed on the surface of the rail is a wall of the receiving groove Composition.