JP2000021508A - Pc card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a PC card with enhanced reliability by enhancing durability by fixing an upper panel to a card side connector together with a ground electrode with their adhesion enhanced. SOLUTION: In this PC card, a card side connector 13 is mounted to its connector mounting inlet 3c, and a ground electrode 14 is provided on its upper side. An upper panel side adhesive film 17 is provided on the lower surface of the upper panel 4. A conducting hole 16 to lead the adhesive film 17 is bored in the ground electrode 14. The upper panel side adhesive film is led to the card side connector 13 through the conducting hole 16 and the upper panel 4 is fixed to the card side connector 13 together with the ground electrode 14 with their adhesion enhanced, by applying heat compression by a hot press after superposing the upper panel 4, the card side connector 13 and the lower panel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a PC card inserted into a card slot of a personal computer, for example, to extend the functions of the personal computer.

[0002]

2. Description of the Related Art In general, a personal computer has a computer body having an arithmetic function, a storage function, etc., a keyboard for inputting signals to the computer body, and a floppy disk for storing a memory in the computer body. It is roughly composed of a device and a display for displaying programs, calculation results, and the like.

[0003] In a personal computer, expansion of a memory built in the computer body, addition of a modem,
ID for external CD-ROM drive or hard disk
In order to perform an E interface or the like, a card slot in which a PC card can be additionally inserted later is provided.
Further, the size and shape of the PC card are regulated by the PC card standard and the standard of JEIDA (Japan Electronic Machine Industry).

On the other hand, in order to increase the processing speed of personal computers, the amount of information for arithmetic processing is shifting from 16 bits (low bits) to 32 bits (high bits). Card and 3
It is distinguished from a 2-bit PC card. Similarly, the card slot on the personal computer side is 16
It is roughly classified into a card slot for bits and a card slot for 32 bits.

[0005] In a personal computer, the drive voltage in the computer body is reduced to reduce power consumption.
Normally, the drive voltage of a 16-bit PC card is 5.0 V, while the drive voltage of a 32-bit PC card is set to 3.3 V. In addition, by lowering the driving voltage from 5.0 V to 3.3 V, the transmission and reception of signals between the PC card and the computer main body are ensured, and a 32-bit PC is used.
The card and the card slot are provided with a ground electrode having a plurality of protrusions for strengthening the ground connection.

On the left side of the PC card insertion direction,
A card-side keyway is formed to prevent the C card from being mistakenly inserted on the front and back, and to distinguish between a 16-bit PC card and a 32-bit PC card. And
The card-side keyway is formed to have a wider width in the 16-bit PC card than in the 32-bit PC card.

[0007] Due to the difference in the width of the card-side key groove, the 16-bit PC card can be mounted not only in the 16-bit card slot but also in the 32-bit card slot. On the other hand, a 32-bit PC card can be inserted into a 32-bit card slot, but cannot be inserted into a 16-bit card slot. As a result, it is possible to prevent each projection of the ground electrode provided in the card slot of the 32-bit PC card from being mounted on the 16-bit card slot which does not have a portion for receiving the projection. The card insertion hole was protected.

Here, as this type of 32-bit PC card, the one disclosed in Japanese Patent Application Laid-Open No. 9-58163 is known.

The PC card according to the prior art includes a frame-like body having one end serving as a connector mounting port for housing a circuit board therein, two panels covering both sides of the frame-like body, and the frame-like body. A connector provided in the connector mounting port of the connector for connecting the circuit board to a personal computer,
A ground electrode provided between one of the two panels and the connector to connect a ground of the circuit board to a ground of a personal computer;

[0010] In one panel, a plurality of projection accommodating holes are formed at positions of the connector mounting port, and the ground electrode is provided with a flat plate portion extending along a length direction of the connector; And protrusions formed on the panel and protruding from the respective protrusion receiving holes of the panel.
Further, since the adhesive film is provided on the inner surface of the panel, the panel and the ground electrode are joined by the adhesive film in a state where the projection of the ground electrode is projected from the projection accommodation hole of the panel.

[0011]

In the above-mentioned conventional PC card, although the ground electrode is bonded to one of the two panels,
It is not fixed to the connector, the flatness of the flat part of the ground plate is poor, the flatness of the part of the panel corresponding to the connector mounting side is poor, or the individual In the case where there is a component manufacturing error, for example, there is a problem that the center of the ground electrode floats from the connector.

In addition, when a PC card is inserted into or removed from a card slot, even if torsional strength or the like is applied to the connector mounting opening of the casing, there is a problem that the center of the ground electrode floats from the connector. .

The present invention has been made in view of the above-described problems of the prior art, and the present invention has improved durability and reliability by fixing one panel and a connector together with a ground electrode with high adhesion. It is an object to provide a PC card that can be enhanced.

[0014]

According to a first aspect of the present invention, there is provided a PC card which is provided with a frame-like body having one end serving as a connector mounting port and accommodating a circuit board therein. Two panels respectively covering both sides of the body, a connector provided at a connector mounting opening of the frame body, and connecting the circuit board to a personal computer;
A PC card comprising a ground electrode provided between one of the two panels and the connector to connect the ground of the circuit board to the ground of a personal computer; The panel is provided with an adhesive film at a position facing the connector, and the ground electrode is provided with a conduction path for guiding the adhesive film provided on the one panel to the connector.

[0015] With this configuration, the adhesive film provided on one panel is guided to the connector through the conductive path of the ground electrode, and the adhesive film including the ground electrode and the one panel is connected to the connector. The connection can be made in an elevated state, and it is possible to prevent the ground electrode from floating with respect to the connector.

According to the second aspect of the present invention, the ground electrode is formed by making a notch in the flat plate portion extending in the longitudinal direction of the connector, and is inserted into a card slot of the personal computer. And a conductive path provided in the ground electrode is provided on a flat surface between adjacent spring protrusions in the flat plate portion.

[0017] With this configuration, the adhesive film formed on the flat surface between the adjacent spring projections allows one panel, the ground electrode, and the connector to pass through the conduction path without restricting the operation of each spring projection. Can be fixed.

According to a third aspect of the present invention, the ground electrode comprises a flat plate extending along the length direction of the connector and a plurality of projections formed on the flat plate, and the conduction path is formed by the flat plate. Among the projections adjacent to each other.

With this configuration, the adhesive film formed on the flat surface between the adjacent projections can join one panel, the ground electrode, and the connector through the conduction path.

According to the fourth aspect of the present invention, the adhesive film provided on one of the panels has a projection at a position corresponding to the conduction path of the ground electrode.

With this configuration, the tip of the projecting portion of the adhesive film can be made to penetrate to the connector side through the conduction path of the ground electrode, and the adhesive film includes the ground electrode and allows one panel and the connector to adhere to each other. Can be fixed in an elevated state.

According to a fifth aspect of the present invention, the connector is provided with an adhesive film at a position facing the one panel, and the ground electrode is provided with a conduction path for guiding the adhesive film provided on the connector to the one panel.

With such a configuration, the adhesive film provided on the connector is guided to the one panel side through the conductive path of the ground electrode, and the adhesive film including the ground electrode and the connector and the one panel are brought into close contact with each other. The connection can be made in an elevated state, and it is possible to prevent the ground electrode from floating with respect to the connector.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the present invention will be described below in detail with reference to FIGS. First, a PC card according to the first embodiment will be described with reference to FIGS.

1 is 16 bits and 32 bits according to the present embodiment.
A PC card 2 capable of accommodating both of the bits is a casing formed in the shape of a thin plate forming the outer shape of the PC card 1. The casing 2 includes a thin frame 3 having upper and lower openings.
The upper opening of the frame 3 is covered with a rectangular bulge 4A.
And a lower panel 5 covering the lower opening of the frame 3 and also having a rectangular bulge 5A.
(See FIG. 4), and a substrate accommodation space 6 is formed inside.

As shown in FIG. 2, the frame 3 has a U-shaped frame 3A, a beam 3B connecting the front end of the frame 3A, and the frame 3B. And a connector mounting port 3C formed at the tip of the portion 3A.
A plurality of protrusion receiving portions 9 described later are formed on the beam portion 3B.

A card connector 13 to be described later is mounted on the connector mounting opening 3C, and locking claws locked on locking grooves of the frame 3 on both sides of the connector mounting opening 3C of the upper panel 4. 4B, 4B (only one is shown) are formed. The arrow A in FIG. 1 indicates the direction in which the PC card 1 is inserted.

Reference numeral 7 denotes a circuit board housed in the board housing space 6 of the casing 2. The circuit board 7 has a drive voltage of 5.0 V as well as a 32-bit drive voltage of 3.3 V. The electronic component 8 which constitutes a circuit set so as to correspond to both of 16 bits using is mounted.

A circuit corresponding to 32 bits using a driving voltage of 3.3 V and a circuit corresponding to 16 bits using a driving voltage of 5.0 V are connected to a PC card by means such as a changeover switch (not shown). Can be switched in accordance with the personal computer to be mounted.

Numerals 9, 9,... Are projection receiving portions for receiving the distal ends of spring projections 15, which will be described later. Each of the projection receiving portions 9 is spaced apart from the beam 3B of the frame 3 by a predetermined distance. To form eight recesses. When the frame 3 is formed of the same material, each of the projection receiving portions 9 can be formed integrally with the frame 3.

Reference numerals 10, 10,... Denote a plurality of protrusion receiving holes formed in a portion of the upper panel 4 located on the connector mounting port 3C side, and each of the protrusion receiving holes 10 is formed in a rectangular shape.
A ground electrode 14, which will be described later, passes through each projection accommodation hole 10.
Are projected.

Reference numeral 11 denotes a card-side key groove formed on the left side in the insertion direction of the PC card 1. The card-side key groove 11 is located on the left side in the insertion direction of the side wall of the frame 3 near the connector mounting port 3C. It is formed by notching the upper surface of the frame 3. The card-side key groove 11 is formed to have the same groove width dimension d1 as the card-side key groove of the 16-bit PC card specified by the standard.

Reference numeral 12 denotes a guide groove formed on the right side in the insertion direction of the PC card 1. The guide groove 12 is located near the connector mounting port 3C of the frame 3 and located on the right side in the insertion direction. Is formed by forming a groove in the side wall. The guide groove 12 is formed to have a groove width dimension do defined by the standard.

Reference numeral 13 denotes a long card-side connector provided in the connector mounting opening 3C of the frame-shaped body 3. The card-side connector 13 includes a rectangular body 13A made of a resin material and a rectangular body 13A. From the front to the rear of the shaped body 13A, two pinholes are arranged vertically and 34 pieces are arranged horizontally and a total of 68 pinholes 13B are formed, and the base end side is located at the back of each pinhole 13B, The terminal pins 13C project from the rear surface of the rectangular body 13A and are connected to the circuit board 7.

A ground electrode 14 is mounted on the upper surface of the card-side connector 13. The ground electrode 14 is
4, a flat plate portion 14A formed of a conductive metal plate and extending along the length direction of the card-side connector 13, and a plurality of flat portions extending from the flat plate portion 14A toward the ground on the circuit board 7 side. (For example, eight) ground terminals 14B and formed on the flat plate portion 14A by cutting three sides excluding one side opposite to the ground terminals 14B, that is, one side opposite to the circuit board 7. A plurality of (for example, eight) tongue pieces 14C and mounting pieces 14D formed on the left and right at an angle of less than 90 degrees with respect to the flat plate portion 14A. And each said tongue piece 1
4C is formed as a resilient projection 15 described later by bending the length direction. In addition, each mounting piece 14D
Is positioned in the gap formed when the rectangular body 13A of the card-side connector 13 is mounted in the connector mounting opening 3C, thereby positioning the ground electrode 14.

In the flat plate portion 14A of the ground electrode 14, a flat surface 14E, 14E
E, ..., and the ground electrode 14 is connected to the card-side connector 1
3, an upper panel-side adhesive film 17 described later is provided on the inner surface of the upper panel 4 facing each of the flat surfaces 14E.

Are formed on the flat plate portion 14A of the ground electrode 14 and project through the projection receiving holes 10, for example, eight plate-like spring projections. The tongue piece 14C formed on the flat plate portion 14A of the ground electrode 14 is bent in the middle to form a substantially rectangular shape. Further, the tip of each tongue piece 14C, that is, the springy projection 1
The tip of the spring projection 5 is a free end and is normally urged against the lower surface of the upper panel 4. When the spring projection 15 is pressed from above by an external force, the tip of the spring projection 15 becomes the projection receiving portion 9 of the frame portion 3B. Will be accepted.

Are conductive holes serving as conductive paths. Each of the conductive holes 16 is a flat plate portion 14 of the ground electrode 14.
A: flat surface 1 located between adjacent spring protrusions 15
4E. The conductive holes 16 guide the adhesive of the upper panel-side adhesive film 17 described later to the upper surface of the card-side connector 13.

Reference numerals 17, 17,... Denote upper panel-side adhesive films provided in advance on the inner surface of a portion of the upper panel 4 located on the card-side connector 13 side. The portion corresponding to each flat surface 14E, that is, the portion avoiding each spring protrusion 15 is formed by screen printing an adhesive. Further, since each of the upper panel-side adhesive films 17 is formed of an adhesive (for example, a rubber-based adhesive, an acrylic-based adhesive, or the like) that is fused by applying heat, the heat-pressing is performed by hot pressing. By doing so, the inner surface of the upper panel 4 and the ground electrode 1
The flat plate portion 14A and the upper surface of the rectangular body 13A of the card-side connector 13 are connected to each other through the conductive holes 16 with improved adhesion.

Reference numeral 18 denotes a lower panel-side adhesive provided in advance on the inner surface of a portion of the lower panel 5 located on the card-side connector 13 side, and the lower panel-side adhesive film 18 has the same adhesion as the upper panel-side adhesive film 17. It is formed by screen printing the agent. The lower panel-side adhesive film 18 is formed on the lower surface of the rectangular body 13A, the inner surface of the lower panel 5, and the rectangular body 1A.
The lower surface of 3A and the circuit board 7 are fixed.

The PC card 1 according to the present embodiment has the above-described configuration. When assembling the PC card 1 next, as shown in FIG. 2, the card-side connector 13 is attached to the connector attaching port 3C. In this state, each mounting piece 14D of the ground electrode 14 is assembled so as to be sandwiched from both sides of the card-side connector 13, and each ground terminal 14B of the ground electrode 14 is soldered to the circuit board 7 (see FIG. 4). After that, the respective resilient projections 15 of the ground electrode 14 are inserted into the respective projection accommodating holes 10 of the upper panel 4 so as to be aligned, and the upper panel 4 is attached to the frame 3. On the other hand, the lower panel 5 is also mounted below the frame 3 (see FIG. 4).

Then, the outer panel-side adhesive film 17 and the lower panel-side adhesive film 18 are fused by hot-pressing the contour of the casing 2 including the connector mounting port 3C by hot pressing. The upper panel-side adhesive film 17 fixes the inner surface of the upper panel 4 to the upper surface of the flat plate portion 14A of the ground electrode 14, and the lower panel-side adhesive film 18 fixes the inner surface of the lower panel 5 to the lower surface of the rectangular body 13A.

At this time, as shown in FIGS. 5 and 6, the upper panel side adhesive film 17 is
To the upper surface of the rectangular body 13 </ b> A of the card-side connector 13.
, The card-side connector 13 and the upper panel 4 can be securely fixed to each other with improved adhesion. This allows P
When attaching / detaching C card 1 to / from the card slot,
Even when torsional strength or the like is applied to the connector mounting port 3C, the floating of the ground electrode 14 from the card-side connector 13 can be prevented. As a result, the durability and reliability of the PC card 1 can be improved.

The card-side connector 13 corresponds to the insertion side of the PC card 1 and is a place where thickness regulation is strict. In addition, since the ground electrode 14 and the upper panel 4 have a double structure on the upper side of the card-side connector 13, the upper panel-side adhesive film is formed by bonding by heating and pressing as in the present embodiment. Reference numeral 17 indicates that the adhesive is crushed and spread to increase the adhesive strength, and the thickness of the adhesive film 17 is reduced. As a result, the thickness of the connector mounting port 3C can be reduced. Thereby, when the PC card 1 is attached to or detached from the card slot, it is possible to surely prevent the upper panel 4, the ground electrode 14 and the like from catching on the card slot side, and to further improve the PC.
The reliability of the card 1 can be improved.

Further, the upper panel-side adhesive film 17 and the lower panel-side adhesive film 18 can be easily provided by screen printing. Further, since the adhesive film 17 is provided by screen printing, the film thickness can be easily adjusted. In the present embodiment, the upper panel-side adhesive film 17 previously provided on the upper panel 4 is slightly thickened. So that each conduction hole 1
The upper panel-side adhesive film 17 can be guided into the inside 6.

Thus, in the PC card 1 according to the present embodiment, the upper panel-side adhesive film 17 is formed at the portion of the upper panel 4 located at the card-side connector 13, and the upper panel-side adhesive film is formed on the ground electrode 14. By forming the conduction hole 16 for guiding the adhesive of the film 17 to the card-side connector 13, the upper panel 4 and the card-side connector 13 can be fixed with high adhesion between the ground electrode 14, The ground electrode 14 is prevented from floating from the card-side connector 13. As a result, when attaching / detaching the PC card 1 to / from the card slot, the PC card 1 is prevented from being caught on the card slot side, and
Can extend its life and increase its reliability.

By forming a plurality of spring projections 15 on the ground electrode 14, the PC card 1
The card slot can be mounted in the bit card slot and the 32-bit card slot, and can be used for both 16-bit and 32-bit.

Next, a second embodiment according to the present invention will be described with reference to FIGS. 7 to 10. The feature of this embodiment is that a plurality of protrusions similar to those of the prior art are formed on a ground electrode. It is formed. In the present embodiment, the same components as those in the above-described first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

Reference numeral 21 denotes a PC card capable of coping with 32 bits. Reference numeral 22 denotes a thin casing formed of the PC card 21. The casing 22 has a frame substantially similar to the casing 2 of the PC card 1. And a rectangular bulge 24A provided at the upper opening of the frame 23
And a lower panel 2 provided at the lower opening of the frame 23 and having a rectangular bulge 25A.
5 (see FIG. 9), and a board housing space 26 for housing the circuit board 7 is formed inside.

Here, the frame 23 is formed as shown in FIG.
It is composed of a U-shaped frame portion 23A, a beam portion 23B connecting the front end side of the frame portion 23A, and a connector mounting port 23C formed at a front end of the frame portion 23A with respect to the beam portion 23B. Have been. The arrow A in FIG. 7 indicates the direction in which the PC card 21 is inserted.

A plurality of circular projection accommodation holes 27 are formed in a portion of the upper panel 24 on the card side connector 13 side, and a projection 29C of a ground electrode 29 described later is formed through each of the projection accommodation holes 27. Protruded.

A card-side key groove 28 is formed on the left side of the PC card 21 in the insertion direction.
Are formed to have the same groove width dimension d2 (d2 <d1) as the card-side key groove of the 32-bit PC card specified by the standard.

Reference numeral 29 denotes a ground electrode attached to the upper surface of the card-side connector 13. The ground electrode 29 includes a flat plate portion 29A and a flat plate portion 29, as shown in FIGS.
A is composed of a plurality of ground terminals 29B extending from A and a plurality of (eg, eight) projections 29C formed on the flat plate portion 29A. Surfaces 29D, 29D,... Each projection 29C projects upward through each projection accommodation hole 27 of the upper panel 24.

Are conductive holes serving as conductive paths, and each of the conductive holes 30 is a flat plate portion 29 of the ground electrode 29.
A is formed on each flat surface 29D. The conductive holes 30 guide the adhesive of the upper panel-side adhesive film 31, which will be described later, to the upper surface of the card-side connector 13.

Reference numeral 31 denotes an upper panel-side adhesive film formed on the upper surface of the rectangular body 13A, and reference numeral 32 denotes a lower panel-side adhesive film formed on the inner surface of a portion of the lower panel 25 located on the card connector 13 side. .

Then, similarly to the first embodiment, by heating and pressing with a hot press, the upper panel side adhesive film 31 fixes the inner surface of the upper panel 24 to the upper surface of the flat plate portion 29A of the ground electrode 29, The lower panel-side adhesive film 32 fixes the inner surface of the lower panel 25 to the lower surface of the rectangular body 13A.

At this time, as shown in FIG. 10, the adhesive of the upper panel side adhesive film 31 is applied to each of the conductive holes 3 by heating and pressing.
0 to the upper surface of the rectangular body 13A of the card-side connector 13, the upper panel-side adhesive film 31
9, the card-side connector 13 and the upper panel 24 can be securely joined together with improved adhesion.

In the PC card 21 configured as described above, the same operation and effect as those of the first embodiment can be obtained, and the upper panel-side adhesive film 31 and the respective conduction holes 30 can be obtained.
Thereby, the upper panel 24, the ground electrode 29, and the card-side connector 13 can be fixed with increased adhesion, and the floating of the ground electrode 29 can be prevented, so that the durability and reliability of the PC card 21 can be improved.

The PC card 21 according to the present embodiment
Can be mounted in the 32-bit card slot by the card-side key groove 28, but cannot be mounted in the 16-bit card slot, thereby preventing each projection 29C of the ground electrode 29 from damaging the card slot side. , 32 bits only.

Next, a third embodiment of the present invention will be described with reference to FIGS. 11 and 12. The feature of this embodiment is that the upper panel side adhesive film 41 corresponds to the conductive hole 16. A protrusion 41A having a predetermined shape is formed by an adhesive. In the present embodiment, the same components as those in the first embodiment are given the same reference numerals,
The description is omitted.

Thus, in the present embodiment, since the thick projecting portion 41A made of an adhesive is formed on the upper panel-side adhesive film 41, the card-side connector 13 to which the ground electrode 14 is attached as shown in FIG. After providing the upper panel 4,
By performing the heating and pressing with a hot press, the tip of the protruding portion 41A reaches the upper surface of the rectangular body 13A of the card-side connector 13 through the conduction hole 16 and the ground electrode 14A.
, The upper panel 4 and the card-side connector 13 can be more firmly fixed. As in the first embodiment, the durability and reliability of the PC card can be improved.

As means for forming the protruding portion on the upper panel side adhesive film, as shown in the first modification shown in FIGS.
2 and by printing the adhesive on this,
The upper panel-side adhesive film 43 having the protrusion 43A may be formed.

Also, as in the second modification shown in FIGS. 15 and 16, a concave portion
By forming C and printing an adhesive thereon,
An upper panel-side adhesive film 44 having a protrusion 44A protruding by the depth of the recess 4C may be formed.

FIG. 17 shows a third modification corresponding to the first embodiment. In the third modification, FIG.
The conduction path formed at the end of the flat plate portion 14A of the ground electrode 14 is formed as arc-shaped notches 51, 51,. Thus, even when the conduction path is formed by the notches 51, the same operation and effect as those of the first embodiment can be obtained, and each notch 51 is located on the PC card insertion side. Therefore, the strength of this portion can be increased.

FIG. 18 shows a fourth modification corresponding to the first embodiment. In the fourth modification, FIG.
Each springy projection 1 of the flat plate portion 14A of the ground electrode 14
A plurality of small holes 52, 52,... Thus, each small hole 52
Even when the conduction path is formed by the above, the same operation and effect as those of the first embodiment can be obtained, and
The small holes 52 ensure a large area for the adhesive to be guided to the card-side connector, and the upper panel and the card-side connector including the ground electrode can be more firmly fixed.

In the embodiment, the case where the adhesive is formed on the lower surface of the upper panel 4 (24) as the upper panel side adhesive film 17 (31, 41, 43, 44) has been described.
The present invention is not limited to this, and the adhesive film 17 ′ may be formed on the upper surface of the rectangular body 13 </ b> A of the card-side connector 13 as in the fifth modification shown in FIGS. 19 and 20.

Also in this case, similarly to the first embodiment, the adhesive film 17 ′ can join the upper panel 4 and the card-side connector 13 in a state of increasing the adhesion, including the ground electrode 14. The floating of the ground electrode 14 with respect to the card-side connector 13 can be prevented, and the durability and reliability of the PC card can be improved.

Although the third and fourth modifications have been described with respect to the case where the invention is applied to the ground electrode 14 having the resilient projections 15 used in the first embodiment, the present invention is not limited to this. Of course, the present invention may be applied to the ground electrode 29 used in the second embodiment.

In the embodiment, the PC card of the 32-bit or 16-bit standard has been described. However, for example, a PC card of the 64-bit or 138-bit standard is used for the 16-bit card connector. ,
It is not limited to the standard according to the embodiment.

Further, there is a personal computer having a special card slot having a driving voltage of 3.3 V and 16 bits, and the same effect can be exerted by such a personal computer.

[0071]

As described above in detail, according to the first aspect of the present invention, an adhesive film is formed on one panel at a position facing a connector, and a ground electrode is provided on one panel. Since the conductive path for guiding the adhesive film to the connector was provided, the adhesive film provided on one of the panels reached the connector side by the conductive path of the ground electrode and increased the adhesion between the upper panel, the ground electrode, and the connector. Join in the state. As a result, it is possible to prevent the ground electrode from floating with respect to the connector due to manufacturing errors of individual components such as the ground electrode and the connector, and to attach / detach to / from the card slot, thereby improving the durability and reliability of the PC card. it can.

According to the second aspect of the present invention, a plurality of spring projections are formed on the ground electrode, and the conductive path is provided on a flat surface between the adjacent spring projections of the flat plate portion. One panel and the connector can be fixed including the ground electrode without restricting the operation of the projection.

According to the third aspect of the present invention, since a plurality of projections are formed on the ground electrode and the conduction path is provided on the flat surface between the adjacent projections of the flat plate portion, the adhesive includes the ground electrode. Panel and the connector can be firmly fixed.

According to the fourth aspect of the present invention, since the adhesive film provided on one panel has a protrusion at a position corresponding to the conduction path of the ground electrode, the tip of the protrusion of the adhesive film is connected to the ground electrode. The adhesive film can be penetrated to the connector side through the conduction path, and the adhesive film including the ground electrode can fix one of the panels and the connector in a state of increasing adhesion.

According to the fifth aspect of the present invention, the connector is provided with an adhesive film at a position facing one panel, and the ground electrode is provided with a conductive path for guiding the adhesive film provided on the connector to the one panel. , The adhesive film provided on the connector side
The adhesive reaches the one panel side by the conduction path of the ground electrode, and the upper panel, the ground electrode, and the connector are joined in a state of increasing adhesion. As a result, it is possible to prevent the ground electrode from floating with respect to the connector due to manufacturing errors of individual components such as the ground electrode and the connector, and to attach / detach to / from the card slot, thereby improving the durability and reliability of the PC card. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a PC card according to a first embodiment.

FIG. 2 is an exploded perspective view showing a frame, an upper panel, a card-side connector, and a ground electrode constituting the PC card according to the first embodiment.

FIG. 3 is an enlarged perspective view showing a ground electrode in FIG. 2;

FIG. 4 is an enlarged longitudinal sectional view of a main part of the insertion side of the PC card viewed from the direction of arrows IV-IV in FIG.

FIG. 5 is an enlarged cross-sectional view showing a card-side connector and an upper panel provided with an adhesive film in a state before fixing.

FIG. 6 is an enlarged cross-sectional view showing a portion a in FIG. 4 in an enlarged manner.

FIG. 7 is a perspective view showing a PC card according to a second embodiment.

FIG. 8 is an exploded perspective view showing a frame, an upper panel, a card-side connector, and a ground electrode constituting a PC card according to a second embodiment.

9 is an enlarged longitudinal sectional view of a main part of the insertion side of the PC card viewed from the direction of arrows IX-IX in FIG. 7;

FIG. 10 is an enlarged sectional view showing a portion b in FIG. 9 in an enlarged manner.

FIG. 11 is an enlarged cross-sectional view showing a PC card according to a third embodiment before a card-side connector and an upper panel provided with an adhesive film are fixed.

FIG. 12 is an enlarged sectional view showing a state where an upper panel, a ground electrode, and a card-side connector are fixed.

FIG. 13 is an enlarged sectional view showing a PC card according to a first modified example in a state before fixing a card-side connector and an upper panel provided with an adhesive film.

FIG. 14 is an enlarged sectional view showing a state where an upper panel, a ground electrode, and a card-side connector are fixed.

FIG. 15 is an enlarged cross-sectional view showing a PC card according to a second modification before fixing a card-side connector and an upper panel provided with an adhesive film.

FIG. 16 is an enlarged sectional view showing a state in which an upper panel, a ground electrode, and a card-side connector are fixed.

FIG. 17 is a perspective view showing a ground electrode according to a third modification.

FIG. 18 is a perspective view showing a ground electrode according to a fourth modification.

FIG. 19 is an enlarged cross-sectional view showing a PC card according to a fifth modification before fixing an upper panel and a card-side connector provided with an adhesive film.

FIG. 20 is an enlarged cross-sectional view showing a state where an upper panel, a ground electrode, and a card-side connector are fixed.

[Explanation of symbols]

 1, 21 PC card 3, 23 Frame 3C, 23C Connector mounting opening 4, 24 Upper panel 5, 25 Lower panel 7 Circuit board 13 Card side connector 14, 29 Ground electrode 14A, 29A Flat plate portion 14E, 29D Flat surface 15 Springy projection 16 Conducting hole (conducting path) 17, 31, 41, 43, 44 Upper panel side adhesive film 41A, 43A, 44A Projecting portion 29C Projection 51 Notch (conducting path) 52 Small hole (conducting path)

Continued on the front page (72) Inventor Hisawa Iwami 5465 Nakasu, Suwa-shi, Nagano F-term in the Toyo Mark Co., Ltd. (reference) 5E021 FA05 FA11 FA16 FB18 FC17 FC19 LA01 LA06

Claims (5)

[Claims] 1. A frame-like body having one end serving as a connector mounting port for housing a circuit board therein, two panels covering both sides of the frame-like body, and a connector mounting port provided in the frame-like body. A connector for connecting the circuit board to a personal computer, and a connector provided between one of the two panels and the connector for connecting the ground of the circuit board to the ground of the personal computer. In a PC card including a ground electrode, an adhesive film is provided on the one panel at a position facing the connector, and the adhesive film provided on the one panel is guided to the connector on the ground electrode. A PC card having a conduction path. 2. The ground electrode is formed by cutting a flat plate portion along the length direction of the connector and cut into the flat plate portion, and provides a spring property when inserted into a card slot of a personal computer. 2. The PC card according to claim 1, comprising a plurality of spring projections, wherein said conductive path is provided on a flat surface between adjacent spring projections of said flat plate portion. 3. The ground electrode includes a flat plate portion extending along a length direction of the connector, and a plurality of protrusions formed on the flat plate portion. 2. A method according to claim 1, wherein said projection is provided on a flat surface between adjacent projections.
PC card as described. 4. The PC card according to claim 1, wherein the adhesive film provided on the one panel has a projection at a position corresponding to a conduction path of the ground electrode. 5. A frame-like body having one end serving as a connector mounting port for housing a circuit board therein, two panels covering both sides of the frame-like body, and a panel provided at the connector mounting port of the frame-like body. A connector for connecting the circuit board to a personal computer, and a connector provided between one of the two panels and the connector for connecting the ground of the circuit board to the ground of the personal computer. In a PC card comprising a ground electrode, an adhesive film is provided on the connector at a position facing the one panel, and the adhesive film provided on the connector is guided to the one panel on the ground electrode. A PC card having a conduction path.