CN104022410B - Card plug-in unit - Google Patents

Abstract

The present invention relates to card inserts. It includes: a housing, a card-shaped body inserted or a disk for carrying the card-shaped body, and a flat storage space capable of accommodating the card-shaped body or the disk; a leaf spring-shaped first contact, one end side is fixed on the housing, and One end side is deflected due to contact with the card-shaped body or disc inserted into the storage space; the gap, the other end is open, is formed from the other end side of the first contact to one end side, due to the application of force in the direction of the plate surface of the first contact. The width of the slit becomes narrow due to the force; and the plate-shaped second contact is fixed to the housing at one end side. When the first contact is energized, the end surface on the other end side of the first contact deflects toward the board surface, contacts with the second contact, and slides. The height of the card insert is reduced, the contact is reliable, and dangers such as twisting of the first contact are avoided.

Description

card insert

technical field

The present invention relates to a card connector installed in various electronic devices such as portable telephones, PDAs (personal digital assistants), portable digital audio players, game devices, digital cameras, and information terminal equipment. The IC card used in the computer is used for the electrical connection between the IC card and the device.

Background technique

The IC card is to embed IC (integrated circuit, integrated circuit) in the card. As a type of IC card, a memory card using a nonvolatile memory is widely used. Memory cards such as SD memory cards are used as removable recording media in portable digital audio players, digital cameras, and the like. Furthermore, in a mobile phone, a SIM card (subscriber identity module card, or smart card, subscriber identity module card) that records a user's unique ID number is used.

The IC card is set to be inserted/extracted freely relative to the card plug-in. For example, an IC card such as a chuck for storing an IC card can be removed from the case by operating a push pin, or an IC card or an IC card mounted on an adapter (adapter) can be inserted into/out of the case by a so-called push-in/pull-out method. selection, etc., which are well known.

In the card plug-in, there is a switch for detecting whether the IC card is installed relative to the card plug-in. That is, a card inserter is known that detects the state of insertion/extraction of the IC card by a switch that is switched in conjunction with the movement of insertion/extraction of the IC card (see Patent Document 1). The detection result of the switch is used for the switching control of the live wire/non-charged wire state of the signal transmission contact of the signal transmission terminal of the card, and the like.

The switch described in Patent Document 1 will be described with reference to FIG. 18 , FIG. 19 , and FIG. 20 . The switch 10 includes a first contact 1 and a second contact 2 respectively formed of conductive plates, each forming an L-shaped cross-section, and configured such that the plates thereof form a right angle. The first contact 1 includes a flat first spring portion 11 with elasticity, an operating portion 12 extending convexly upward from one end side of the first spring portion 11, and a contact base portion 13 extending flatly from the front end of the operating portion 12. , an inclined portion 14 inclined upward from one side of the contact base portion 13, and a contact piece 15 made of a plane that is further bent upward from the front end of the inclined portion 14. The contact piece 15 and the first spring portion 11 are formed so that the respective planes are perpendicular to each other. The first contact portion is formed by the inclined portion 14 connected to the contact base portion 13 and the contact piece 15 .

The second contact 2 of the switch 10 includes a second spring portion 21 arranged such that the plane of the second contact 2 is perpendicular to the plane of the first contact 1, a plane portion 22 serving as a front end of the second spring portion 21, and The guide piece 23 is bent outward from the upper end of the planar portion 22 . The surface of the inclined portion 14 is formed substantially parallel to the surface of the guide piece 23 . The second contact portion is formed by the planar portion 22 and the guide piece 23 .

When the operation of the switch 10 is described with reference to FIGS. 19 and 20, the operation portion 12 of the first contact 1 is pushed in the Y direction due to the insertion of the IC card as indicated by the arrow. In the state before being pushed, the first contact 1 and the second contact 2 are in a non-contact normally open state (switch off state).

Due to the pushing, the inclined portion 14 and the contact piece 15 of the first contact 1 come into contact with the guide piece 23 of the second contact 2, pushing the second contact 2 in a direction substantially perpendicular to the pushing direction Y so that it Variable Bit. The X direction becomes the thickness direction of the housing of the card cartridge. As the first contact 1 displaces in the Y direction, the contact portion of the first contact 1 gradually moves downward along the slope of the guide piece 23, becoming the contact piece 15 of the first contact 1 and the contact portion of the second contact 2. The state in which the plane portions 22 are in surface contact (that is, the state in which the switch is fully turned on).

In the switch described in Patent Document 1, the displacement direction X of the second contact 2 is perpendicular to the pressing direction Y, and the second contact 2 can maintain a certain displacement regardless of the displacement of the first contact 1 . Therefore, even when the amount of displacement of the first contact 1 is large, the amount of displacement of the second contact 2 can be suppressed from being small. Furthermore, the second contact 2 will not be displaced beyond a certain displacement, and stable contact can be maintained.

[Patent Document 1] Japanese Patent No. 3635398

In the switch described in Patent Document 1, the displacement direction X of the second contact 2 is the thickness direction of the card, and the displacement of the second contact 2 corresponds to the thickness of the card housing. Therefore, when the thickness of the housing is thin, the amount of displacement becomes small, and there arises a problem that the contact pressure required for the first contact 1 and the second contact 2 cannot be sufficiently ensured. Therefore, there is a limit to reducing the height of the card card. In addition, the direction of the spring span of the first contact 1 and the direction of the spring span of the second contact 2 are approximately parallel at the same place, so it is difficult to make the length of the inclined surface of the guide piece 23 long. When the head 1 is mounted relative to the second contact 2, the load of the second contact 2 is rapidly applied to the first contact 1. As a result, due to the frictional force between the first contact 1 and the second contact 2, the first contact 1 does not return to its original position, or the first contact 1 is twisted, and there is a risk of bending.

Contents of the invention

The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a card insert capable of solving the above-mentioned problems of the conventional switch.

In order to solve the above-mentioned problems, the card insert of the present invention includes:

The housing is inserted into the card-shaped body or the disc on which the card-shaped body is placed, and has a flat storage space capable of accommodating the card-shaped body or the disc;

The leaf spring-shaped first contact, one end side is fixed to the housing, and the other end side is bent due to contact with the card-shaped body or disc inserted into the storage space;

a slit, the other end of which is open, is formed from the other end side to the one end side of the first contact, and the width of the slit becomes narrow due to a force applied in the direction of the plate surface of the first contact; and

A plate-shaped second contact, one end of which is fixed to the housing;

Wherein, when the first contact is energized, the end surface on the other end side of the first contact flexes toward the direction of the board surface, contacts with the second contact, and slides.

The effect of the present invention is described below:

According to the present invention, the first contact can be flexed in the card storage space, so even if the height of the housing of the card insert is reduced, the necessary load can be ensured. Furthermore, the frictional force after contact between the first contact and the second contact can be gradually increased with the movement of the first contact, and it is possible to prevent the load caused by the sudden application of the load of the second contact to the first contact as in the conventional configuration. The problem. That is, the problems that the first contact cannot return to the original position due to the friction force between the first contact and the second contact, and that the first contact is twisted and caused to bend can be avoided.

Description of drawings

Fig. 1 is a partially sectional perspective view of a card holder according to a first embodiment of the present invention.

Fig. 2 is a perspective view of the card holder according to the first embodiment of the present invention with the shield removed.

Fig. 3 is a perspective view showing a state in which a shield cover of the card holder is removed according to the first embodiment of the present invention.

4 is a plan view of a state in which an IC card is inserted in a state where the shield cover of the card insert according to the first embodiment of the present invention is removed.

5 is a plan view of a state in which IC card installation is completed in a state where the shield cover of the card insert according to the first embodiment of the present invention is removed.

Fig. 6 is a perspective view of a state in which IC card installation is completed in a state where the shield cover of the card inserter according to the first embodiment of the present invention is removed.

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

Fig. 8 is a partial perspective view of the switch according to the first embodiment of the present invention

Fig. 9 is a partially enlarged perspective view of the switch according to the first embodiment of the present invention.

10A and 10B are partial enlarged perspective views of the switch according to the first embodiment of the present invention.

11A and 11B are partial enlarged plan views of the switch according to the first embodiment of the present invention.

12A and 12B are a plan view and a side view for explaining partial operations of the switch according to the first embodiment of the present invention.

13A and 13B are side views and plan views for explaining a modified example of the switch according to the first embodiment of the present invention.

Fig. 14 is a partially enlarged perspective view of a switch according to a second embodiment of the present invention.

15A and 15B are partially enlarged plan views of a switch in a state of inserting an IC card and a plan view of a card card inserter according to a second embodiment of the present invention.

16A and 16B are partially enlarged plan views of switches and a plan view of the card card card card card card card card card card in the second embodiment of the present invention in the IC card mounting completed state.

Fig. 17 is a perspective view of the card inserter in a state where the IC card is mounted in the card inserter according to the second embodiment of the present invention.

Fig. 18 is a perspective view showing an example of a conventional switch.

Fig. 19 is a perspective view illustrating the operation of an example of a conventional switch.

Fig. 20 is a perspective view illustrating the operation of an example of a conventional switch.

The symbols are explained as follows:

1,52,72 - first contact

2,53,73 - second contact

10,51,71 - switch

31,81 - insulation board

32 - shielding cover

33 - card slot

35,82 - contact

41,85 - slider

42,84 - helical spring

43,88 - guide pin

44,87 - pin guide groove

45,86 - heart cam

50,70 - IC card

55,75 - motion department

56,76 - Gap

57, 77a, 77b - contacts

detailed description

Embodiments of the present invention will be described below with reference to the drawings. The first embodiment and the second embodiment described below are suitable specific examples of the present invention. Although various technical limitations have been made to the constituent elements, types, combinations, shapes, relative arrangements, etc., these are merely examples. The present invention is not limited thereto.

[1. First Embodiment]

The card inserter according to the first embodiment of the present invention will be described.

FIG. 1 is a cross-sectional view of the card insert cut along a plane corresponding to the insertion/extraction direction of the IC card. As shown in FIG. 1 , the card insert includes an insulating plate 31 and a shield cover (shield cover) 32 disposed opposite to the insulating plate 31 . The casing is constituted by the insulating plate 31 and the shield case 32 . The insulating plate 31 is, for example, a molded product of liquid crystal polymer. The shield 32 is formed by bending metal such as stainless steel. From the card insertion opening 33 on one end surface of the case, an IC card such as a SIM card is inserted into the card receiving recess formed inside the case. In this specification, the side of the card insertion opening 33 is referred to as the front or front, the side opposite to the card insertion opening is referred to as the rear or rear, and the side on the right side as viewed from the card insertion opening is referred to as the right or right side, and the side on the left side is referred to as the right side. is called the left or left side.

As a SIM card, there is a micro SIM card smaller than a standard SIM card, or a nano SIM card smaller than a micro SIM card. The sizes of the SIM cards are different, but the physical characteristics such as pin configuration are the same. The present invention is applicable to any SIM card. Furthermore, it is also applicable to other IC cards such as SD memory cards. Furthermore, even if IC cards with different sizes are installed in the adapter, the present invention can be applied in the same use as standard IC cards. In addition, the present invention can be applied even if the card inserter is provided with a disk, and the IC card is placed on the disk for use. The card-shaped body means an IC card or an adder.

2 and 3 are perspective views of the insulating plate 31 with the shield cover 32 removed. As shown in FIGS. 2 and 3 , the insulating plate 31 integrally forms a right side wall 34a, a left side wall 34b, a rear wall 34c, and a front wall 34d adjacent to the card insertion port 33, forming a storage space capable of accommodating an IC card. The shield case 32 is mounted on the insulating plate 31 and fixed by welding or the like.

On the SIM card, 8 pins (also called electrodes, terminals, and pads) are formed by gold plating, and each pin is allocated as a data input/output terminal, a ground terminal, a power input terminal, and the like. For example, in the case of a SIM card for a mobile phone, actually 6 pins are used out of 8 pins. Corresponding to the pin configuration of the SIM card, six contacts 35a, 35b, 35c, 35d, 35e, and 35f are provided on the insulating plate 31, respectively. When it is not necessary to distinguish the contacts individually, they are referred to as contacts 35 for short.

The contact 35 is, for example, a spring contact made of phosphor bronze, which is cut out from the bottom surface of the housing, and the front end is used as a contact surface with the pin of the SIM card. The other end of the contact 35 is led out to the lower side of the insulating plate 31 to face the opening 36 formed in the insulating plate 31 . The other end of the contact 35 is soldered to the wiring pattern on the printed wiring board provided in the casing, and is electrically connected between the IC card inserted into the card insert and the printed wiring board. The contacts 35 are provided on the insulating plate 31 by, for example, insert molding. Metal parts other than the contacts 35 are similarly inserted into the insulating plate 31 by insert molding. However, parts such as a slider 41 , a coil spring 42 , and a guide pin 43 , which will be described later, are separate parts from the insulating plate 31 .

In the first embodiment of the present invention, the IC card is inserted/extracted by pushing in/out. That is, in the push-in/push-out method, the push-in operation and the pull-out operation are performed by repeating the operation force in the same direction. Specifically, a push-in/push-out mechanism of the heart-shaped cam type is used. The present invention is not limited to the push-in/pull-out method, and is applicable even to a card insert in which the IC card is locked and the lock pin is operated to disengage the IC card from the card insert.

As shown in FIGS. 2 to 6 , a slider 41 made of metal, such as stainless steel, which reciprocates together with the IC card is arranged in the card storage space. One end of the slider 41 on the card insertion opening side is always energized in the push-out direction by the coil spring 42 . The coil spring 42 is arranged in a metal spring housing provided along the right side wall 34 a of the insulating plate 31 . The other end of the slider 41 is bent substantially at a right angle so that the contact portion of the front end of the IC card is in contact with the front end of the slider 41 . If the IC card is inserted into the card insertion space, the slide block 41 and the IC card slide backward together against the energizing direction of the coil spring 42 .

One end of the guide pin 43 is rotatably inserted into the hole formed in the slider 41 . That is, one end of the guide pin 43 is bent, and the other end is inserted into the support hole of the slider 41 to form a rotation center axis of the guide pin 43 . The other rotatable end of the guide pin 43 is bent, and the tip of the other bent end is inserted into the pin guide groove 44 . The pin guide groove 44 is formed on the insulating plate 31 .

As shown in Figure 7, the pin guide groove 44 is provided with the outward guide groove portion 46 and the return guide groove portion 47 on both sides of the heart-shaped heart-shaped cam 45, and the outward guide groove portion 46 and the return guide groove portion 47 The confluence part is provided with a back-and-forth shared groove part 48 .

The end portion of the guide pin 43 is inserted into the pin guide groove 44 , and the end portion circulates along the outward guide groove portion 46 and the return guide groove portion 47 . The push-in/push-out mechanism is constituted by the pin guide groove 44 and the end of the guide pin 43 . On the bottom surface of the outgoing guide groove portion 46, the return guide groove portion 47, and the reciprocal common groove portion 48, segment portions 49a, 49b, 49c, and 49d for limiting the moving direction are provided so that the end of the guide pin 43 is along the above-mentioned The outgoing guide groove 46 , the return guide groove 47 , and the return common groove 48 do not return in the reverse direction during the cycle.

The step portion 49a is provided so that the end of the guide pin 43 that reaches the distal end side of the outward guide groove portion 46 does not return to the outward guide groove portion 46 side, but returns to the stop position c toward the stop of the heart cam 45 as a concave portion. The segment 49b is provided so that the end does not return to the segment 49a side from the check return stop position c. The segment portion 49c is provided so that the end portion of the guide pin 43 advancing toward the return guide groove portion 47 from the return inhibiting stop position c does not return to the return inhibiting stop position c. The section 49d is provided so that the end of the guide pin 43 entering the outward guide groove 46 and returning to the common groove 48 from the end of the return guide groove 47 does not return to the return guide groove 47.

As shown in FIG. 4 , in the state where the IC card 50 is pushed out, that is, the state where the IC card 50 is moved in the pulling direction, the end portion of the guide pin 43 is located at the push-out stop position a. Then, if the card pressing action is implemented, that is, the pushing action, the end passes through the outward guide groove portion 46, and reaches the end stop position b of the pushing action, and if the pressing operation force is released at this position, the coil spring 42 of the spring force, the end reaches the stop position c that prevents return. Figures 5 and 6 show the state after the pushing operation.

Next, the end portion of the guide pin 43 reaches the end stop position d of the push-out operation by another memory card push-in operation for releasing the engagement, that is, the push-out operation. Next, when the push-in operation force is released, the end portion returns to the push-out stop position a through the circuit guide groove portion 47 by the spring force of the coil spring 42 .

In the first embodiment of the present invention, the switch 51 for detecting whether the IC card 50 is pushed into the card inserter is provided in the card storage space. That is, the insertion/extraction state of the IC card 50 is detected by the switch 51 switched in conjunction with the movement of the insertion/extraction direction of the IC card, and the detection result is used for the switching control of the charged/non-charged state of the contact 35 for signal transmission. Wait.

The switch 51 will be described in detail with reference to FIG. 8 , FIG. 9 , FIG. 10A , and FIG. 10B . The switch 51 is composed of a first contact 52 and a second contact 53 . Both the first contact 52 and the second contact 53 are spring contacts made of phosphor bronze, and are arranged behind the card receiving recess of the insulating plate 31 by insert molding. Terminals electrically connected to the first contacts 52 and terminals electrically connected to the second contacts 53 are led out to the side or bottom of the insulating plate 31 and connected to an external printed wiring board.

The first contact 52 is a leaf spring having a plate surface substantially perpendicular to the insertion/extraction direction of the IC card 50, and its base is fixed to the insulating plate 31 by insert molding near the rear wall 34c of the card receiving recess. The front end of the plate-shaped spring portion 54 extending the first contact 52 elastically bulges toward the card insertion port side, and a semicircular protruding portion is provided. Also, it is bent such that the front end is parallel to the card insertion/extraction direction. The semicircular protruding portion is the action portion 55 that is in contact with the front end surface of the IC card 50 .

The first contact 52 includes a thin strip-shaped slit 56 , the other end of which is open, extending from the other end of the first contact 52 to one end. For example, the slit 56 is formed from the open end to a position exceeding the operating portion 55 . The slit 56 is formed in the middle of the width of the first contact 52 and has a shape in which the opening width gradually decreases from the other end side of the first contact 52 toward one end side. The lower end surface of the other end of the first contact 52 serves as a contact portion 57 that contacts the second contact 53 . The contact portion 57 has an inclination along the inclined contact surface of the second contact 53 .

Connecting to the rear wall 34c of the insulating plate 31, a window portion 58 is formed, and a plate spring is provided, which has a plate surface parallel to the card insertion/extraction direction and protrudes from the rear wall 34c toward the window portion 58. The central portion of the plate spring is cut out to be the second contact 53 . A protrusion 59 protruding downward from the lower end surface of the spring portion 54 of the first contact 52 is formed, and the protrusion 59 contacts the corner portion 60 of the window portion 58 to restrain the first contact 52 from opening more than necessary.

The second contact 53 is a cut-out piece having an inclined surface that rises from the base on the side of the card insertion opening toward the free end on the side of the rear wall 34c. The contact portion 57 of the first contact 52 is configured to be able to contact the inclined surface. Furthermore, the inclination is different so that the vicinity of the free end of the second contact 53 is further upward. This is for the purpose of generating greater contact pressure near the front end of the inclined surface of the second contact 53 when the contact portion 57 of the first contact 52 slides along the inclined surface of the second contact 53, so that the first The contact between the contact 52 and the second contact 53 is stable.

In other words, one end side (rear wall 34c side) of the plate-shaped second contact 53 is fixed to the above-mentioned case. The second contact 53 has an inclined surface, which rises from the other end side of the second contact toward the one end side, and the end surface of the other end side of the first contact 52 bends toward the direction of the plate surface, and contacts the inclined surface. to swipe.

FIG. 11A shows an enlarged state in which the installation of the IC card 50 is not completed, that is, the state in which the card is pushed out. When the card is pushed out, the first contact 52 and the second contact 53 are in a non-contact state, which is a switch off state (normally open). Next, if the IC card 50 is pushed in and the installation is completed, then as shown in FIG. contact, the switch becomes ON. That is, the contact portion 57 of the first contact 52 elastically contacts the inclined surface of the second contact 53 .

Insert the IC card 50, and the state change process of the switch 51 when the first contact 52 is pushed by the IC card 50 is shown in Fig. 12A and Fig. 12B. FIGS. 12A and 12B show the state in which the contact portion of the IC card 50 presses the operating portion of the first contact 52 to sequentially change to states Sa, Sb, and Sc.

The state Sa is a state in which no pushing operation of the IC card 50 occurs, and represents a state in which the first contact 52 and the second contact 53 are not in contact. The state Sb indicates that the first contact 52 and the second contact 53 are still in a non-contact state although the abutting portion of the IC card 50 pushes the operating portion of the first contact 52 . The state Sc represents a contact state in which the push-in IC card 50 is installed and the first contact 52 and the second contact 53 are in contact. In the state Sa and the state Sb, the switch 51 is turned off, and in the state Sc, the switch 51 is turned on.

In state Sc, the spring span direction of the first contact 52 and the spring span direction of the second contact 53 intersect at substantially a right angle. The so-called spring span refers to the distance between the load support points of the leaf spring, and the spring span direction refers to the direction connecting the load support points. In the case of the first contact 52, the direction connecting the fixed position of the base and the movable front end becomes the spring span direction. In the case of the second contact 53, the direction connecting the cut-and-raised base and the cut-and-raised piece becomes the spring span direction.

During the change of the above state, FIG. 12B shows the action of the first contact 52. In the state Sa and the state Sb, since the first contact 52 and the second contact 53 are not in contact, the front end portion of the slit 56 including the first contact 52 does not change. During the transition from the state Sb to the state Sc, the contact portion 57 of the first contact 52 is in contact with the inclined surface of the second contact 53, and gradually presses the inclined surface of the second contact 53 downward. In this case, an upward pushing force is applied to the contact portion 57 of the first contact 52, and the spring composed of the lower side piece and the upper side piece sandwiching the slit 56 operates, so that the width of the slit 56 becomes smaller.

The restoring force of the spring formed by the lower side piece and the upper side piece sandwiching the gap 56 of the first contact 52 gradually becomes stronger when the first contact 52 slides along the inclined surface after contacting the second contact 53 . Therefore, the contact pressure (frictional force) after contact between the first contact 52 and the second contact 53 gradually increases with the movement of the first contact 52 . By such an action, it is possible to prevent the contacts from being bent due to contact failure or twisting as in the above-mentioned conventional switch.

Furthermore, in the first embodiment of the present invention, a desired contact pressure can be set by the width of the leaf spring portion below the slit 56 or the length of the slit 56 in the longitudinal direction. That is, the larger the width of the lower leaf spring portion, the larger the load generated by the spring, and the shorter the length of the slit 56, the larger the load generated by the spring.

[2. Modified example of the first embodiment]

13A and 13B show a modified example of the first embodiment of the present invention. Between the upper operating portion 55a and the lower operating portion 55b of the slit 56 of the first contact 52, a step 61 in the insertion/extraction direction is provided. For example, the position of the lower operating portion 55b in contact with the second contact 53 is set to be the same as that of the operating portion 55 in the first embodiment described above. By bending the first contact 52, the upper side operation part 55a is positioned closer to the insertion port side of the IC card, and a step 61 is formed.

That is, the portions above and below the slit 56 of the first contact 52 have a step difference in a direction substantially perpendicular to the span of the spring, and among the above and below the portions, the portion that is not in contact with the second contact 53 is not in contact with the second contact 53. The above-mentioned card-like body 50 or the above-mentioned disk are in contact with each other.

In this modified example, the ON/OFF time of the switch 51 can be adjusted by the size of the step 61 . That is, if the step 61 is increased, when the IC card 50 is inserted, the time to start the operation of the first contact 52 becomes earlier, and the switch-on time can be shortened. When the IC card 50 is pulled out, if the step 61 is increased, the time for the first contact 52 to start acting will be delayed, and the switch off time can be delayed.

[3. Second Embodiment]

A second embodiment of the present invention will be described with reference to Fig. 14 to Fig. 17 . The switch 71 of the second embodiment is composed of a first contact 72 and a second contact 73 as shown in FIG. 14 . The first contact 72 is a leaf spring having a plate surface substantially perpendicular to the insertion/extraction direction of the IC card 70, and its base is fixed to the insulating plate 31 by insert molding near the rear wall of the card receiving recess. The first contact 72 has a shape such that the free end of the spring portion 74 of the plate spring whose plate surface is perpendicular to the insertion/extraction direction is bent back approximately 180° toward the side opposite to the card insertion port side.

The plane on the side of the spring portion 74 of the bending portion is defined as the action portion 75. As shown in FIG. 16A, FIG. 16B, and FIG. 72. A slot 76 is formed near the free end of the curved return. The lower side piece and the upper side piece of the slit 76 each extend downward approximately at right angles, and the extended end is bent inwardly to form contact portions 77 a and 77 b capable of contacting the second contact 73 . In this way, by making the leaf spring bend back to form a double-layered front end, an action portion 75 that is in contact with the front end of the IC card 70 can be provided at one front end, and two openings sandwiching the slit 76 can be formed at the other front end. Contact portions 77a and 77b.

The second contact 73 is a leaf spring with one end fixed to the insulating plate 31 by insert molding. The free end of the second contact 73 bends downward at a set angle to form an inclined surface 79 . The spring span direction of the first contact 72 and the spring span direction of the second contact 73 intersect at substantially right angles.

The card insert shown in FIGS. 15A to 17 is a push/pull card insert, but the IC card 70 uses a different type of IC card from that of the first embodiment, for example, an SD memory card. Pins for external connection are arranged on the back of the IC card 70 . Corresponding to the pin configuration of the IC card 70, eight elongated strip contacts 82 and external connection terminals 83 are provided on the bottom surface of the insulating plate 81 of the card insert by insert molding. The external connection terminal 83 is connected to an external printed wiring board. The contacts 82 are, for example, spring contacts made of phosphor bronze. The insulating plate 81 is, for example, a molded product of liquid crystal polymer.

FIG. 15B shows that the IC card 70 is inserted into the card receiving recess of the card inserter, and there is no installation completion stage, or the stage of pushing out the IC card 70. FIG. 16B and FIG. 17 represent the IC card 70 installation completion stage. The above figure shows the state with the shield cover removed. The housing is formed by the insulating plate 81 and the shield case. A slider 85 is provided on the card insert which is constantly energized by a coil spring 84 in the discharge direction.

A pin guide groove 87 of the heart cam 86 is formed for the slider 85 . The front end portion of the guide pin 88 is slidably inserted into the pin guide groove 87 . The base of the guide pin 88 is rotatably inserted into a recess formed in the insulating plate 81 . The locking mechanism is constituted by the heart-shaped cam 86, and a card insert in a push-in/pull-out mode is formed.

Furthermore, a leaf spring 89 is provided on the card insertion side of the slider 85 . The front end of the leaf spring 89 is bent into a U-shape so that the convex portion of the leaf spring 89 protrudes toward the card receiving recess. The convex portion of the plate spring 89 enters the engaging concave portion 90 formed on the side surface of the IC card 70 .

The switch 71 is provided in the card storage space of the above-mentioned card inserter. When the switch 71 is in the non-inserted state of the IC card 70 or the pop-up state without the IC card 70 being pushed in ( FIG. 15B ), the first contact 72 and the second contact 73 are not in contact, and the switch is in an off state. As shown in FIG. 16B and FIG. 17 , if the IC card 70 is pushed in relative to the card inserter and the installation is completed, the first contact 72 and the second contact 73 are in contact, and the switch is turned on. In this way, the insertion/removal state of the IC card 70 is detected, and switching control of the live wire/non-charged wire state of the contact 82 for signal transmission is performed based on the detection result. The second embodiment can have the same effects as those of the first embodiment. Moreover, the second embodiment has two contact portions 77a and 77b, therefore, reliable contact of the contacts can be achieved, and the self-cleaning effect of the contacts can be improved.

[4. Modifications]

The embodiments of the present invention have been specifically described above, but the present invention is not limited to the above embodiments, and various modifications can be made according to the technical idea of the present invention. For example, in the above embodiment, the switch is provided on the inner side of the housing, and the first contact has a plate surface in a direction substantially perpendicular to the insertion/extraction direction of the card-shaped body or the disc. However, it can also be configured such that the plate surface of the first contact near the side wall of the housing has approximately the same direction as the insertion/extraction direction, and when the card-like body or disk is inserted, the first contact faces the insertion/extraction direction. Roughly orthogonal to deflection.

For example, in the above-mentioned first and second embodiments, a normally open switch was described, but the switch may be a normally closed switch. Furthermore, the present invention can also be applied to card inserts other than the push-in/pull-out method. Specifically, the present invention can be applied even to card inserts that do not use a locking mechanism composed of a heart-shaped cam. The configurations, methods, steps, shapes, materials, and numerical values listed in the above-mentioned embodiments are merely examples, and different configurations, methods, steps, shapes, materials, and numerical values may be used as necessary.

Claims (9)

1. A card plug-in, comprising: The housing is inserted into the card-shaped body or the disk on which the card-shaped body is placed, and has a flat storage space capable of accommodating the above-mentioned card-shaped body or the above-mentioned disk; The leaf spring-shaped first contact, one end side is fixed to the above-mentioned housing, and the other end side is bent due to contact with the above-mentioned card-shaped body or the above-mentioned disk inserted into the above-mentioned storage space; The slit is provided on the first contact, is opened at the other end of the first contact, and is formed from the other end side of the first contact toward the one end side. force, the gap width narrows; and a plate-shaped second contact, one end of the second contact is fixed to the housing; Wherein, when the first contact is energized, the end surface on the other end side of the first contact bends toward the board surface, contacts with the second contact, and slides. 2. According to the card inserter recorded in claim 1, it is characterized in that: The second contact has a spring span direction intersecting with the spring span direction of the first contact, and the plate surface is substantially orthogonal to the plate surface of the first contact. 3. According to the card inserter recorded in claim 2, it is characterized in that: The second contact has an inclined surface, which rises from the other end of the second contact to one end of the second contact, and the end surface of the other end of the first contact bends toward the plate surface, and This inclined surface contacts and slides. 4. According to the card inserter recorded in claim 1, it is characterized in that: The upper and lower parts of the first contact above and below the gap have a step difference in a direction approximately perpendicular to the span of the spring, and among the upper and lower parts of the above-mentioned first contact, the part that is not in contact with the second contact and the above-mentioned card-shaped body or The above disks are connected. 5. According to the card inserter recorded in claim 1, it is characterized in that: The other end of the above-mentioned first contact bends back toward the direction of the span of the spring at approximately 180°; Make the plane of the insertion side of the curved portion contact the above-mentioned card-shaped body or the above-mentioned disk; The front ends of the two upper and lower portions extending across the gap are defined as contact portions with the second contact. 6. The card insert according to any one of claims 3 to 5, characterized in that: The aforementioned slits have at least partially a shape of varying width. 7. The card insert according to any one of claims 3 to 5, characterized in that: The end surface of the tip on the other end side of the first contact has a shape inclined along an inclined surface. 8. The card insert according to any one of claims 3 to 5, characterized in that: The above-mentioned first contact and the above-mentioned second contact are assembled together with respect to the above-mentioned housing by insert molding. 9. The card insert according to any one of claims 3 to 5, characterized in that: The above-mentioned second contact is formed by cutting a leaf spring.