JP2003091340A - Pc card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a PC card formed by stacking two sheets of printed wiring boards on a frame. SOLUTION: A plurality of projections 85, 86 are provided on both side end faces 79f of the frame 49 to which the printed wiring board is fitted, and hooks 99, 112 formed on an upper cover 50 and a lower cover 51 are caught on the projections 85, 86. A cover locking piece 101 formed on the upper cover 50 and a cover locking piece 106 formed on the lower cover 51 are respectively inserted in locking piece insert holes 82 provided in the frame 49, and in the locking piece insert holes 82, a locking claw 102 formed on the upper cover 50 is inserted and engaged with an engagement hole 114 of the lower cover 51. Thus, the upper cover 50 and the lower cover 51 can be simply and surely fixed to the frame 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PC card, and more particularly to a PC card having an upper cover and a lower cover that function as shield plates attached to the outside of a frame.

[0002]

2. Description of the Related Art Generally, a notebook type personal computer is provided with a PC card slot for expansion. In this PC card slot, for example, JE
IDA (Japan Electronic Industry Development Association) Ver. 4.2 and PCM
CIA (personal computer memory card internatio
nal association) 2.1 compliant PC card is inserted.

The type of PC card depends on the thickness of the portion to be inserted into the PC card slot.
It is classified into three types, I and Type III. Type I
The PC card has a thickness of 3.3 mm and is mainly used as a memory card. Type II PC cards have a thickness of 5 mm or less and are a fax modem, LAN adapter, SCSI (Small Computer System Interface)
Used as an adapter. The type III PC card has a thickness of 10.5 mm or less and is mainly used as a hard disk built-in card. Currently a Type II PC
Cards are the mainstream.

[0004]

By the way, since the PC card is formed with electronic components and wiring circuits mounted on a printed wiring board, a shield for shutting out electromagnetic waves leaking from these electronic components is formed. The plate is attached. Usually, the shield plate is
It is mounted in a case made of a resin molded body.

However, in a so-called multi-function card in which one PC card has two types of functions, a shield plate installed in the case cannot be expected to have a sufficient shielding effect.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a PC card capable of obtaining a sufficient shielding effect and capable of easily and surely attaching an upper cover and a lower cover which function as a shield plate.

[0007]

According to the present invention, an upper cover is attached to an upper surface of a frame to which a printed wiring board is attached, a lower cover is attached to a lower surface of the frame, and the upper cover and the lower cover are inserted into a PC card slot. Cover the part to be covered. The upper cover and the lower cover are fixed to the frame by engaging the engaged portions formed on the upper cover and the lower cover with a plurality of protrusions provided on the side surface of the frame.

According to the present invention, since the protrusions provided on the frame are attached to the upper and lower covers of the frame by engaging the engaged portions formed on the upper and lower covers, the upper cover and the lower cover can be easily attached. The cover can be attached to the frame. Further, since the entire outside of the frame is covered with the upper cover and the lower cover, electromagnetic waves leaking from electronic components mounted on the printed wiring board mounted in the frame are shut out.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In this embodiment, two printed wiring boards are attached to a frame with a predetermined height therebetween, and 3
Multi-function with different types of connectors
A PC card as a card is installed in an entertainment device that constitutes an entertainment system.
In this example, the card is used by inserting it into the C card slot.

[Schematic Configuration of Entertainment System] First, the configuration of the entertainment system will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing an example in which an external hard disk drive device is connected to an entertainment device via a PC card, and FIG. 2 is a perspective view showing a state in which a PC card is inserted into a PC card slot provided on the back surface of the entertainment device. It is a figure.

As shown in FIG. 1, the entertainment system includes an entertainment apparatus 1 capable of executing various video games, creating and editing electronic mails, browsing Web pages, playing movies and music, and the like.
The controller 2, which is an operation terminal connected to the entertainment device 1, game contents, e-mail, We
The system is composed of a television monitor device 3 for displaying pages b, movies, etc. and outputting sound, and an external hard disk drive device 4.

[Entertainment Device] The entertainment device 1 is, for example, a CD-ROM or a DVD-ROM.
Such as an optical disk, a hard disk of the hard disk drive device 4, a recording medium such as a semiconductor memory, or a game, an electronic mail, which is downloaded through various transfer media such as a telephone line, a LAN, a CATV line, and a communication satellite line. According to an application program for a web browser and an instruction from an operator via the controller 2, a game is executed, various processes for creating and editing an email, and browsing a web page are executed. Audio data and D recorded on CD
This is a device capable of reproducing (decoding) video and audio data such as movies recorded in VD.

On the front surface of the entertainment apparatus 1, as shown in FIG. 1, two controller ports 7 and 8 to which a connector 6 provided at the tip of a cable 5 connected to a controller 2 is detachably attached, Memory card slots 10 and 11 in which the memory card 9 is removable
And a disc tray 12 into which an optical disc such as a DVD-ROM or a CD-ROM is loaded, and a disc tray 12
Open / close button 13 for opening or closing the game, and on / standby / reset button 14 for powering on, standby, and resetting the game
And IEEE (Institute of Electrical and Elec
tronics Engineers) 1394 connection terminal 15 and two USB (Universal Serial Bus) connection terminals 16 and 17
Etc. are provided.

As shown in FIG. 2, a power switch 18, an audio / video output terminal (AV multi output terminal) 19, an optical digital output terminal 20, an AC power input terminal 21, and a PC card are provided on the back surface of the entertainment apparatus 1. Slot 2
2, PC card 2 inserted in the PC card slot 22
An eject button 24 for ejecting 3 and the like are provided. The PC card slot 22 has 10.
Type III PC card 2 with a thickness of 5 mm or less
3 is inserted.

[Television Monitor Device] As shown in FIG. 1, the television monitor device 3 is connected to an audio / video output terminal 19 (see FIG. 2) provided on the back surface of the entertainment device 1 via a cable 25. It And
On the monitor screen 26 of the television monitor device 3,
The above-mentioned game contents, electronic mail, Web page, movie, etc. are displayed. In addition, a sound of a game or the like is output from the speaker of the television monitor device 3.

[Controller] The controller 2 is shown in FIG.
As shown in FIG. 3, the controller main body has a left grip 27 and a right grip 28 that the operator can hold and operate with both hands, and various operation buttons and the like are provided on the top or front of the controller main body. . On the upper left side of the controller main body, for example, in a video game, a game character is moved up and down, left and right on the monitor screen 26, a character input cursor is moved up and down and left and right on an e-mail creation screen, and a page is displayed while browsing a web page. An up / down / left / right direction instruction key 29 operated by the operator is provided when scrolling or moving the cursor on the screen in the up / down / left / right directions. These up / down / left / right direction instruction keys 29 are
For example, when holding the controller with both hands, it is operated with the thumb of the left hand.

Further, four instruction buttons 30 to which different functions are assigned by application programs, for example, are provided on the upper right side of the controller body. These instruction buttons 30 include, for example, a function of designating display of a menu, a function of designating cancellation of a selected item, a function of designating determination of a selected item, a function of designating display / non-display of contents, etc. Is allocated.

Further, in the center of the upper surface of the controller body,
A start button 31 for instructing to start a game, start displaying an e-mail screen, start playing a movie or music, pause, etc., and a select button for instructing to display a menu or operation panel on the monitor screen 26. Three
2. A mode selection switch 33 for selecting an operation mode, a lighting display section 34 for displaying a selection mode, left and right analog operation sections 35, 36 for joystick operation, and the like are provided.

Further, on the front surface of the controller body, left and right push buttons 37 and 38, which are pushed by the left and right index fingers, respectively, are provided.

[Hard Disk Drive Device] As shown in FIG. 1, the hard disk drive device 4 has a PC card 23 (see FIG. 2) inserted into a PC card slot 22 provided on the back surface of the entertainment device 1, It is connected to the entertainment device 1.
The hard disk drive device 4 incorporates a hard disk drive (not shown) in a case 39 which is, for example, a rectangular case. A connection cable 40 for connecting to the PC card 23 is led out to one side surface of the case 39. A connector (not shown) for connecting a hard disk for connecting to the PC card 23 is provided at the tip of the connection cable 40. Further, noise reduction cores 41, 41 are attached to the connection cable 40.

A hard disk drive built in the case 39 reads out a game, an electronic mail, an application program for a Web browser stored in a data storage area of the hard disk as needed,
Alternatively, it serves to write data and the like in a predetermined track area. Further, this hard disk drive is provided with a tracking servo mechanism for writing data to a desired recording track position. Data is written in a desired track position while being corrected by this tracking servo mechanism. In addition, case 39
An insulator 42 made of rubber or the like is attached to the bottom surface of the.

[Schematic Configuration of PC Card] Next, the configuration of the PC card 23 will be described in detail with reference to the drawings. The PC card 23 of this embodiment is, for example, a type III PC card having three types of connectors for connecting a FAX modem, LAN and hard disk. Figure 3
4 is an exploded perspective view of the PC card 23, and FIG. 5 is an exploded perspective view showing a state in which the upper and lower covers are attached to the case.

As shown in FIG. 4, the PC card 23 of the present embodiment has a first printed wiring board 43 for a FAX modem, a second printed wiring board 44 for connecting a LAN and a hard disk, and these second printed wiring boards 44. 1 printed wiring board 4
3 and the second printed wiring board 44 are stacked and arranged at a predetermined height, and a printed wiring board stacking and disposing member 45, F
The connector housing 46 in which the AX modem connector 69 and the LAN connector 70 are integrated, the connector cover 48 that covers the hard disk connecting connector 47, the first printed wiring board 43, the second printed wiring board 44, and the connector housing 46 are provided. It is composed of a frame 49 to be housed and attached, an upper cover 50 provided to cover a portion of the frame 49 to be inserted into the PC card slot 22, and a lower cover 51.

[First Printed Wiring Board] As shown in FIG. 4, the first printed wiring board 43 is a rectangular board having substantially the same length as the portion inserted into the PC card slot 22. It consists of a FAX modem card that constitutes the primary power supply circuit. Electronic circuit patterns are formed on both surfaces of the first printed wiring board 43. In addition, the second printed wiring board 43 of the first printed wiring board 43
As shown in FIG. 13, an electronic component 62 such as an IC and a capacitor is mounted on a surface of the second printed wiring board 44 facing the printed wiring board 44, and one of the electronic printed wiring board 44 and the second printed wiring board 44 is electrically connected. The connector 52 for connection is provided.

Further, the first printed wiring board 43 has through holes 53 formed at respective corner portions near one side edge near the insertion side into which the PC card slot 22 is inserted. In addition, the first printed wiring board 43
Has an arc-shaped mounting hole 54 for screwing the first printed wiring board 43 to the frame 49 near the other side edge opposite to the insertion side of the PC card slot 22.
Are formed. Further, as shown in FIGS. 4 and 10, the first printed wiring board 43 is in contact with an upper cover 50 described later to ground the upper cover 50 and the first printed wiring board 43 to each other. A piece 115 is provided. The contact piece 115 is formed by bending a copper plate having a spring property into a substantially Z shape.
Is connected to the ground pattern of the printed wiring board 43 by soldering.

[Second Printed Wiring Board] As shown in FIG. 4, the second printed wiring board 44 is a rectangular board having substantially the same length as the frame 49. For example, a LAN card and a hard disk connection card. It is a card that integrates. On both sides of this second printed wiring board 44,
An electronic circuit pattern is formed on each. Further, an electronic component 55 such as an IC or a capacitor is mounted on the surface of the second printed wiring board 44 facing the first printed wiring board 43, and is provided on the first printed wiring board 43. The other connecting connector 56 connected to the one connecting connector 52 is provided.

Then, this second printed wiring board 44
On the surface facing the first printed wiring board 43, between the circuit patterns and the electronic components 55, 62 (see FIGS. 10 and 13) formed on the first and second printed wiring boards 43, 44. An insulating sheet 57 is attached so as not to interfere with each other. A front connector 58 for connecting to a connector (not shown) in the PC card slot 22 is attached to the second printed wiring board 44. Front connector 58
Has a female terminal housed in a housing, into which a male terminal provided in a mating connector is inserted for electrical continuity.

Further, the second printed wiring board 44 has
An elongated hole 59 formed as a hole larger than the mounting hole 54 is formed at a position facing the mounting hole 54 formed in the first printed wiring board 43. Further, the second printed wiring board 44 has a frame 49 shown in FIG.
The bosses 60, which are four support shafts formed at the four corners of the
Through hole 61 is formed.

[Configuration of Printed Wiring Board Laminated Member]
The printed wiring board stacking member 45 functions as a sleeve for stacking the first printed wiring board 43 and the second printed wiring board 44 at a predetermined height. This printed wiring board laminated arrangement member 45 is shown in FIG. 10 and FIG.
As shown in FIG. 1, it comprises a body portion 63 and contact pieces 64 provided on both end edges of the body portion 63 in the height direction.

The body portion 63 is formed as a cylindrical ring which is mounted on the outer periphery of the boss 60 formed on the inner surface of the frame 49 by punching and forming a conductive metal plate having a spring property. ing. This body part 63
A slit 65 is formed along the height direction. Then, the one end edge 63 where the slit 65 is formed
a retaining piece 66a extending from a toward the other edge 63b
And two retaining pieces 66b extending from the other end edge 63b toward the one end edge 63a are formed in the body portion 63. These retaining pieces 66a and 66b serve to prevent the body portion 63 from coming off the boss 60 even when an external force is applied to the first and second printed wiring boards 43 and 44.

The retaining piece 66a extending from the one end edge 63a toward the other end edge 63b is formed at a substantially intermediate height position of the body portion 63, and the tip end portion thereof has the other end edge 63b.
The other retaining piece 66 extending from one end edge 63a toward the other end
It extends to almost the same position as the tip of b. On the other hand, the retaining pieces 66b, 66b extending from the other edge 63b toward the one edge 63a are provided near both edges in the height direction and extend from the one edge 63a.
It is formed so as to sandwich a from both sides. Each of these three retaining pieces 66a, 66b, 66b has a tongue shape that curves along the outer periphery of the boss 60.

As shown in FIG. 11, the contact piece 64 is formed so as to project obliquely outward from both end edges 63c and 63d of the body portion 63 in the height direction. Such contact piece 64
Are integrally formed with the body portion 63 as a substantially rectangular tongue piece, and two are provided on each of both end edges 63c and 63d. These contact pieces 64 are shown in FIG.
, The first and second printed wiring boards 43,
Land 6 of through holes 53 and 61 formed in 44
7, 68 (see also FIG. 10), respectively, so as to penetrate the first printed wiring board 43 and the second printed wiring board 4 respectively.
4 and 4 are stacked and arranged with a predetermined height therebetween.

Further, since the contact piece 64 is formed integrally with the body portion 63 made of a conductive metal plate,
Printed wiring board 43 and second printed wiring board 44
The through holes 53 and 61 are electrically connected to each other.
Normally, a flux layer is present on the surfaces of the lands 67 and 68, but the contact piece 64 pierces the flux layer and bites into the lands 67 and 68, so that the upper and lower through holes 53 and 61 are located above the body portion 63. It will be conducted through.

[Construction of Connector Housing] As shown in FIGS. 3 and 4, the connector housing 46 has a rectangular housing 71 in which a FAX modem connector 69 and a LAN connector 70 are built. On the front surface of the housing 71, a FAX modem connector 69 and a LAN connector 70 into which the male connectors attached to the ends of the telephone cable and the LAN cable are inserted and engaged are faced. On the other hand, on the rear surface of the housing 71, FA
A FAX modem connection connector 73 connected from the X modem connector 69 via a lead wire 72 and a LAN connection connector 75 connected from the LAN connector 70 via a lead wire 74 are drawn out.

The FAX modem connector 73 is a FAX
It is connected to a connector provided on the first printed wiring board 43 which is a modem. One LAN connector 75
Is connected to a connector provided on the second printed wiring board 44 for connecting the LAN and the hard disk.

A housing fixing portion 77 having a circular hole 76 through which the boss 60 (see FIG. 13) formed on the inner surface of the frame 49 is inserted is integrated with the housing 71. The housing fixing portion 77 is formed near both longitudinal edges of the housing 71 so as to project outward from the housing 71.

In the connector housing 46 thus constructed, the boss 60 of the frame 49 is inserted into the circular hole 76 of the housing fixing portion 77, and the FAX modem connector 69 and the LAN connector 70 are connected to the frame 49.
It is attached to the frame 49 so as to be exposed to the outside through the connector lead-out window 78 formed in the above.

[Structure of Frame] As shown in FIGS. 4, 5 and 13, the frame 49 includes a slot insertion portion 79 which is inserted into the PC card slot 22, and a housing accommodation portion 80 which accommodates the connector housing 46. Have
The slot insertion portion 79 and the housing accommodating portion 80 are integrally formed by mode molding.

The slot insertion portion 79 of the frame 49 has a cutout portion 8 for exposing the front connector 58 attached to the second printed wiring board 44 to the outside.
1 is formed. Then, on both sides of the cutout portion 81, a cover locking piece insertion portion 83 having a locking piece insertion hole 82 for fixing an upper cover 50 and a lower cover 51 described later is formed. When the cover locking pieces 101 and 106 of the upper cover 50 and the lower cover 51, which will be described later, are inserted into the locking piece insertion holes 82, the cover locking pieces 101 and 106 are overlapped and fixed to each other. Not provided with a protrusion.

Further, as shown in FIG. 5, the slot insertion portion 79 is formed with a positioning projection 84 for positioning the upper cover 50. This positioning projection 8
4 are provided at both corners of the slot insertion portion 79 protruding in a rectangular shape, and slightly protrude from the mounting surface 79a on which the upper cover 50 is mounted, the front end surface 79b, and both side surfaces 79c, 79d.

As shown in FIGS. 5 and 6, the slot insertion portion 79 is formed with a plurality of protrusions 85 and 86 for fixing the upper cover 50 and the lower cover 51 to the frame 49. These projections 85 and 86 are formed on both end surfaces 79f (one surface is not shown) of the slot insertion portion 79 in the insertion direction into the PC card slot 22, and the directions of the projections are made different from each other. ing. The protrusion 85 for fixing the upper cover 50 is formed as a protrusion having a substantially triangular cross section, the thickness of which is increased toward the side where the lower cover 51 is mounted. On the other hand, the protrusion 86 that fixes the lower cover 51 is
Is formed as a protrusion having a substantially triangular cross-section, the wall thickness of which increases toward the side to be mounted.

As shown in FIG. 13, the slot insertion portion 79 is provided with two bosses 60 for attaching the first printed wiring board 43 and the second printed wiring board 44 to the frame 49. . The boss 60 is
It has a female screw along the axial direction, and is provided at both corners near the tip of the slot insertion portion 79 so as to project upward from the case inner surface 79g.

Further, as shown in FIGS. 4 and 5, the slot insertion portion 79 is formed with a contact piece insertion hole 116 into which the contact piece 115 provided on the first printed wiring board 43 is inserted. Therefore, the tip of the contact piece 115 protrudes above the mounting surface 79 a through the contact piece insertion hole 116, and the tip contacts the upper cover 50 mounted in the slot insertion portion 79.

As shown in FIG. 5, when the PC card 23 is inserted in the housing accommodating portion 80, the P card 23 is inserted into the PC card slot 22.
A fixing screw 87 for fixing the C card 23 so as not to come off is provided. The fixing screw 87 is a screw fixing member 8 provided on the front surface side of the housing accommodating portion 80.
The screw portion 89 is inserted into and supported by the screw 8.
Then, the fixing screw 87 is provided with a PC card fixing screw hole 90 provided on the back surface of the entertainment apparatus 1.
By inserting and screwing the screw portion 89 into the PC card slot 22 (see FIG. 2), the PC card 23 is fixed so as not to come out of the PC card slot 22.

Further, the housing accommodating portion 80 has a structure shown in FIG.
As shown in, a connector lead-out window 78 for exposing the FAX modem connector 69 and the LAN connector 70 of the connector housing 46 to the outside is formed. Further, in the housing accommodating portion 80, two bosses 60 for positioning and fixing the connector housing 46 and the second printed wiring board 44 are formed. Such a boss 60
Are provided at both corners on the side where the connector lead-out window 78 is formed so as to project upward from the housing inner surface 80a. Further, the housing accommodating portion 8
At 0, a boss 91 for fixing the first printed wiring board 43 is provided so as to project upward from the inner surface 80a of the housing accommodating portion. A female screw is formed on the boss 91 along the axial direction, and a screw 92 for fixing the board is screwed through an arc-shaped mounting hole 54 formed in the first printed wiring board 43.

[Construction of Connector Cover] As shown in FIGS. 3 and 4, the connector cover 48 has substantially the same size as the housing accommodating portion 80 and covers the hard disk connecting connector 47. The connector cover 48 has a notch 93 for exposing the hard disk connecting connector 47 to the outside. Further, the connector cover 48 is provided with a hooking claw 94 for fixing the connector cover 48 to the frame 49 so as to project upward on the cover inner surface 48a. The hooking claws 94 are provided at both corners on the side opposite to the side where the notch 93 is formed, and are hooked to a hooking portion (not shown) formed in the housing accommodating portion 80, The connector cover 4
8 is fixed to the housing accommodating portion 80.

The connector cover 48, the second printed wiring board 44, and the lower cover 5 are provided at both corners on the side where the notches 93 are formed.
A boss 95 for fixing 1 is formed. A fixing screw 96 that is screwed into the female screw of the boss 60 formed on the frame 49 is inserted into the boss 95.

[Structure of Upper Cover] The upper cover 50 has electronic components 55 and 62 (FIG. 1) mounted on the first and second printed wiring boards 43 and 44 attached to the frame 49.
0 and FIG. 13) or a shield plate that shields radio waves leaking from the wiring circuit to the outside of the frame 49. As shown in FIGS. 4 and 5, the upper cover 50 includes a cover body 97 that covers the slot insertion portion 79,
It has a connector coating portion 98 that covers the front connector 58, and is formed by bending a stainless plate.
Then, as shown in FIG. 4, the upper cover 50 is attached to the slot insertion portion 79 by the double-sided tape 103, for example.

As shown in FIG. 5, the cover body 97 includes a main plate 97a that covers the mounting surface 79a of the slot insertion portion 79, a front end plate 97b that covers the front end surface 79b of the slot insertion portion 79, and the slot insertion portion 79. Both sides 79
Side plates 97c and 97d that cover c and 79d, and a step plate 97 that covers a step surface 79e of the slot insertion portion 79.
e (one step plate is not shown) and the end face plate 97 that covers both end faces 79f of the slot insertion portion 79.
f and.

The cover body 97 is formed with a notch 111 for engaging the positioning projection 84 formed on the slot insertion portion 79 and positioning the upper cover 50 with respect to the slot insertion portion 79. ing. In addition, as shown in FIG. 6, the slot main body 97 has a slot insertion portion 7
A hook 99 that is an engaged portion that engages with the protrusion 85 provided on the shaft 9 is formed. The hook 99 is provided on the lower end edge of the end face plate 97f, and the engaging hole 1 for inserting and engaging the projection 85 provided on the slot insertion portion 79.
Has 00. As shown in FIG. 7, the hook 99 is adapted to fix the upper cover 50 to the slot insertion portion 79 by inserting and engaging the projection 85 in the engaging hole 100.

As shown in FIG. 5, the connector covering portion 98 has a connector covering plate 98a for covering the front connector 58 and a cover engaging member inserted into the engaging piece inserting hole 82 formed in the cover engaging piece inserting portion 83. Has a stop 101,
The front connector 5 is attached to the lower edge of the front end plate 97b.
It is provided so as to extend to a position where 8 is covered. The connector cover plate 98a covers almost the entire front connector 58 and shields the front connector 58. The cover locking pieces 101 are provided on both end edges of the connector cover plate 98a in the short side direction, and are inserted into the locking piece insertion holes 82.

As shown in FIG. 9, the cover locking piece 101 has an engaging hole 11 formed in a lower cover 51 described later.
4 is formed with a locking claw 102 which is inserted and engaged. The locking claw 102 has a shape in which a tip 102a of the cover locking piece 101 is opened outward by cutting and raising a part of the cover locking piece 101. The locking claw 102 is formed in the locking piece insertion hole 82, and the locking hole 1 is formed in the lower cover 51.
The upper cover 50 and the lower cover 51 are fixed by being inserted into and engaged with the upper cover 50. When the locking claw 102 is inserted and engaged with the engagement hole 114 in the locking piece insertion hole 82, it is impossible to release these engagements. That is, the upper cover 50 and the lower cover 51 are securely fixed.

[Structure of Lower Cover] The lower cover 51 functions as a shield plate like the upper cover 50. As shown in FIGS. 4 and 5, the lower cover 51 includes a main plate 104 that covers almost all of the hard disk connector 47, the front connector 58, and the second printed wiring board 44, and both end surfaces of the slot insertion portion 79. 79
The end face plate 105 that covers f, and the cover locking piece insertion portion 8
The cover locking piece 106 is inserted into the locking piece insertion hole 82 formed in FIG.

The main plate 104 has a frame 49
An attachment hole 107 for inserting a fixing screw 96 is formed at a position facing the four bosses 60 formed in. Further, the main plate 104 is formed with an escape hole 108 for avoiding interference between a board fixing screw 92 for fixing the first printed wiring board 43 to the frame 49 and an electronic (electrical) component. The main plate 104 also has a hard disk connector 47.
A comb tooth portion 109 is formed to cover the lower surface of the. And
An insulating sheet 110 is attached to the inner surface of the main plate 104 at a position substantially corresponding to the circuit portion formed on the second printed wiring board 44.

As shown in FIGS. 5 and 6, the end face plate 105 has a protrusion 86 provided on the slot insertion portion 79.
A hook 112 that is an engaged portion that engages with is formed. The hook 112 is provided on the upper edge of the end plate 105, and has an engagement hole 113 into which the projection 86 provided in the slot insertion portion 79 is inserted and engaged.
As shown in FIG. 8, the hook 112 is configured to fix the lower cover 51 to the slot insertion portion 79 by inserting and engaging the protrusion 86 in the engaging hole 113.

The cover locking piece 106 has a slot insertion portion 7
It is inserted into the locking piece insertion hole 82 formed in the cover 9 and engages with the cover locking piece 101 of the upper cover 50 in the locking piece insertion hole 82. As shown in FIG. 9, the cover locking piece 106 has an engagement hole 114 for inserting and engaging the locking claw 102 formed in the upper cover 50. By inserting and engaging the locking claws 102 in the engaging holes 114, the upper cover 50 and the lower cover 51 are fixed in a non-separable manner.

[PC Card Assembly] Next, a procedure for assembling the PC card 23 configured as described above will be described. First, the connector housing 46 is attached to the frame 49.
It is attached to the housing accommodating portion 80 of. That is, the circular hole 76 formed in the housing fixing portion 77 of the connector housing 46 is inserted into the boss 60 of the housing accommodating portion 80 shown in FIG. As a result, the FAX modem connector 69 and L formed on the front surface of the connector housing 46
The connector housing 46 is assembled in the housing accommodating portion 80 in a state in which the AN connector 70 faces the outside through the connector lead-out window 78 formed in the housing accommodating portion 80.

Next, as shown in FIG. 13, the first printed wiring board 43 is attached to the frame 49. That is, the through holes 53 are inserted through the two bosses 60 provided in the slot insertion portion 79, and the first printed wiring board 4 is inserted.
3 is attached to the inner surface 79g of the case. Next, the FAX modem connection connector 73 pulled out from the connector housing 46 is connected to a predetermined connector of the first printed wiring board 43, and the LAN connection connector 75 is connected to a predetermined connector of the second printed wiring board 44.

Next, the second printed wiring board 44 is placed in the first
Frame 4 in the form of stacking on the printed wiring board 43 of
Attach to 9. When mounting the second printed wiring board 44, as shown in FIG. 10, after mounting the printed wiring board stacking arrangement member 45 on the two bosses 60 provided in the slot insertion portion 79, the respective through holes 61 are formed. Insert into each boss 60. Further, the connection connector 52 of the first printed wiring board 43 is fitted with the connection connector 56 of the second printed wiring board 44, so that the second printed wiring board 44 is attached to the frame 49.
Attach to.

Then, through a long hole 59 of the second printed wiring board 44, a screw 92 for fixing the board is inserted into an arc-shaped mounting hole 54 formed in the first printed wiring board 43, and the screw 92 is used as described above. It is screwed into a female screw formed on the boss 91. As a result, the first printed wiring board 43 is fixed by the screws 92.

Next, the upper cover 50 is attached to the slot insertion portion 79 of the frame 49. That is, the upper cover 50
The notch 111 formed at the position is mounted on the slot insertion portion 79 in a state of being aligned with the positioning projection 84, and each hook 99 formed at the upper cover 50 is attached to the slot insertion portion 79 shown in FIGS. 6 and 7. Are hooked on the projections 85 formed on the both end surfaces 79f. Further, the cover locking piece 101 formed on the upper cover 50 is inserted into the locking piece insertion hole 82 of the slot insertion portion 79 shown in FIG.

Next, the lower cover 51 is attached to the frame 49. That is, each hook 1 formed on the lower cover 51
12 are hooked on the projections 86 formed on the both end surfaces 79f of the slot insertion portion 79 shown in FIGS. 6 and 8, respectively. In addition, the cover locking piece 10 formed on the lower cover 51
6 is a locking piece insertion hole 8 of the slot insertion portion 79 shown in FIG.
Insert in 2. As a result, in the engagement piece insertion hole 82, the engagement hole 114 of the lower cover 51 is inserted and engaged with the engagement claw 102 of the upper cover 50 shown in FIG. 9. Therefore, the upper cover 5
The 0 and the lower cover 51 are fixed in a non-separable manner. In addition, since the projections that bring the cover locking pieces 101 and 106 of the upper cover 50 and the lower cover 51 into close contact with each other are provided in the locking piece insertion hole 82, the engagement between the upper cover 50 and the lower cover 51 is made. The combined state becomes more certain.

Next, the connector cover 48 is attached to the frame 4
9 is attached to the housing accommodating portion 80. To attach the connector cover 48, the hook claw 94 is engaged with the hook provided on the housing accommodating portion 80. Then, the fixing screws 96 are respectively screwed into the female screws of the four bosses 60 provided on the frame 49. Of the four screws 96, two screws 96 are the connector cover 48
The boss 95 is inserted and screwed into the female screw of the boss 60 provided in the housing accommodating portion 80. Remaining two screws 9
6 is screwed into the female screw of the boss 60 provided in the slot insertion portion 79 through the mounting hole 107 of the lower cover 51.

The pressure generated by the screws 96 causes the contact pieces 64 of the printed wiring board stacking and arranging member 45 to spread outward, and the through holes 53 and 61 formed in the first and second printed wiring boards 43 and 44, respectively. Land 67, 68
By biting into, the through holes 53 and 61 are firmly connected to each other. As a result, the through holes 53, 61 of the first and second printed wiring boards 43, 44 are electrically connected to each other by the printed wiring board laminated arrangement member 45. Further, as shown in FIG. 12, since the contact piece 64 digs into the lands 67 and 68, the contact piece 64 pierces the flux layer and comes into pressure contact with the lands 67 and 68, so that reliable conduction is achieved.

Frame 4 of second printed wiring board 44
Although external force is applied to the printed wiring board laminated arrangement member 45 at the time of mounting to the printed wiring board 9, the retaining pieces 66a, 66b are engaged with the boss 60 even if external force is applied to the printed wiring board laminated arrangement member 45. It is possible to prevent the printed wiring board laminated arrangement member 45 from being detached from the boss 60. That is, the printed wiring board laminated arrangement member 45
Is designed not to come off the boss 60.

By assembling according to the above procedure, FIG.
The PC card 23 shown in is completed. This PC card 2
3 is mounted in the PC card slot 22, as shown in FIG.
Insert into C card slot 22. When the front connector 58 is connected to the connector provided at the back of the PC card slot 22, the housing accommodating portion 80
The fixing screw 87 attached to is attached to the PC card fixing screw hole 90 formed on the back surface of the entertainment apparatus 1. As a result, the PC card 23 will not be accidentally pulled out from the PC card slot 22 due to a shock or the like.

[Summary of this Embodiment] This PC card 23 includes two printed wiring boards 4 in a frame 49.
This is a type III card in which 3, 44 are attached in a laminated manner with a predetermined height, and a FAX modem connector 69 and a LAN are provided in a housing accommodating portion 80 and a connector cover 48 which are exposed from the PC card slot 22. A connector 70 and a hard disk connection connector 47 are provided. Therefore, one PC card can be used for F
3 of AX function, network connection and hard disk connection
One function can be realized.

Further, in this PC card 23, since the upper cover 50 and the lower cover 51 functioning as shield plates are provided outside the frame 49, like the conventional PC cards, the shield plate is provided inside the frame. Has a much higher shield effect than the one with. In addition, the upper cover 50 and the lower cover 51 have hooks 9 on the protrusions 85 and 86 formed on the frame 49, respectively.
Since 9, 112 are hooked and attached to the frame 49, they can be easily and surely fixed to the frame 49. Further, the upper cover 50 and the lower cover 51
Are the cover locking pieces 10 in the locking piece insertion holes 82.
Since the engaging claws 102 are inserted and engaged in the engaging holes 114 formed in the first and the sixth 106, as long as the cover engaging piece inserting portion 83 in which the engaging piece inserting hole 82 is formed is not broken, the upper portion of the engaging piece 114 is formed. The engagement between the cover 50 and the lower cover 51 cannot be released.

In addition, the first printed wiring board 43 and the second printed wiring board 43
The printed wiring board stacking and disposing member 4 including the contact piece 64 that bites the printed wiring board 44 of FIG.
5, the first printed wiring board 43 and the second printed wiring board 44 are securely fixed because they are attached in a form of being stacked at a predetermined height. Also, land 6
Since the contact piece 64 bites into 7, 68, the through holes 53, 61 of the first printed wiring board 43 and the second printed wiring board 44 are electrically connected to each other, and the first and second printed wiring boards 43 are electrically connected.
The desired wiring patterns on the printed wiring boards 43 and 44 are connected to each other.

Further, since the retainer pieces 66a and 66b are formed on the body portion 63 of the printed wiring board stacking and disposing member 45, the external force acting when mounting the second printed wiring board 44 is applied to the printed wiring board. Even when added to the substrate stacking member 45, the retaining pieces 66a,
The 66b is caught by the boss 60, and the printed wiring board stacking member 45 is prevented from being detached from the boss 60.

Further, on the first printed wiring board 43,
Since the arcuate mounting hole 54 is formed, when the second printed wiring board 44 is positioned on the frame 49, the connector 56 for connection and the first printed wiring board 44 provided on the second printed wiring board 44 are formed. Even if the first printed wiring board 43 is tilted toward the center of the connection connectors 52 and 56 due to mounting misalignment with the connection connector 52 provided on the wiring board 43 or variation in processing of each component (direction of arrow I in FIG. 14). ), They are absorbed by the arcuate mounting holes 54, and the first printed wiring board 43 can be tightened by screwing the board fixing screw 92 into the female screw of the boss 91.

[Other Embodiments] The specific embodiments to which the present invention is applied have been described above, but the present invention is not limited to the above-described embodiments, and various modifications can be made.

For example, in the above-described embodiment, the fax modem connector 69, the LAN connector 70, and the hard disk connecting connector 47 are exemplified as three types of connectors, but the combination of these connectors is not particularly limited. That is, a combination other than these types of connectors may be used.

Further, since the PC card of this embodiment is used by inserting it into the PC card slot 22 provided in the entertainment apparatus 1 for enjoying a game or the like, a fixing screw 87 is attached to the housing accommodating portion 80. However, when used for a personal computer or the like, the fixing screw 87 may be omitted.

[0075]

The present invention is carried out in the form as described above, and has the following effects.

According to the present invention, the upper cover and the lower cover are attached to the upper and lower surfaces of the frame to which the printed wiring board is attached to cover almost the entire portion inserted into the PC card slot. It is possible to shut out electromagnetic waves leaking from electronic components mounted on the printed wiring board attached to the.

Further, according to the present invention, the upper and lower covers are attached so that the protrusions provided on the frame are engaged with the engaged portions formed on the upper and lower covers to cover the upper and lower surfaces of the frame. , The upper cover and lower cover can be easily attached to the frame.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example in which an external hard disk drive device is connected to an entertainment device via a PC card.

FIG. 2 is a perspective view showing a state in which a PC card is inserted into a PC card slot provided on the back surface of the entertainment device.

FIG. 3 is a perspective view of a PC card.

FIG. 4 is an exploded perspective view of a PC card.

FIG. 5 is a perspective view showing a state in which the upper and lower covers are attached to the case.

FIG. 6 is an enlarged perspective view of essential parts showing a state in which hooks formed on the upper and lower covers are engaged with protrusions formed on both end surfaces of the slot insertion portion.

FIG. 7 is an enlarged sectional view of an essential part showing a state where hooks formed on the upper cover are engaged with protrusions formed on both end surfaces of the slot insertion portion.

FIG. 8 is an enlarged sectional view of an essential part showing a state in which hooks formed on the lower cover are engaged with protrusions formed on both end surfaces of the slot insertion portion.

FIG. 9 is an enlarged perspective view of main parts showing a state in which the locking claw formed on the cover locking piece of the upper cover is inserted and engaged with the engaging hole formed in the cover locking piece of the lower cover.

FIG. 10 is an exploded perspective view showing a state in which the first printed wiring board and the second printed wiring board are attached to the frame via the printed wiring board stacking member.

FIG. 11 is an enlarged perspective view showing a printed wiring board stacking member.

FIG. 12 is an enlarged cross-sectional view of an essential part showing a state in which the first printed wiring board and the second printed wiring board are fixed to the frame via the printed wiring board stacking member.

FIG. 13 is a perspective view showing a state in which the first printed wiring board is attached to the frame.

FIG. 14 is a plan view showing that even if the mounting position of the first printed wiring board to the frame is displaced, the displacement can be absorbed by the arcuate mounting hole.

[Explanation of symbols]

1 ... Entertainment device, 4 ... Hard disk drive device, 22 ... PC card slot, 2
3 ... PC card, 43 ... First printed wiring board, 44 ... Second printed wiring board, 45 ... Printed wiring board laminated arrangement member, 46 ... Connector housing, 47 ... .Connectors for hard disk, 4
8 ... Connector cover, 49 ... Frame, 50
... upper cover, 51 ... lower cover, 53 ... through hole, 54 ... mounting hole, 58 ... front connector, 60 ... boss, 61 ... through hole, 67
... Land, 68 ... Land, 69 ... FAX modem connector, 70 ... LAN connector, 82 ...
Locking piece insertion hole, 85 ... Protrusion, 86 ... Protrusion, 90
... PC card fixing screw holes, 91 ... Boss, 99
... Hooks, 101 ... Cover locking pieces, 102 ...
.Locking claws, 106 ... Cover locking pieces, 114 ... Engagement holes

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2C005 MA06 MB04 MB05 NB03 NB09                 4E360 AA02 AB14 BA08 BC05 BD03                       CA02 EA18 ED02 ED03 ED06                       ED13 ED23 ED27 FA08 FA17                       GA06 GA34 GA53 GB01 GB97                 5B035 AA11 BB09 CA11

Claims (5)

[Claims] 1. A front connector inserted into and connected to a PC card slot, a back connector connected to an external device, a printed wiring board on which electronic components are mounted, and a side surface in the insertion direction into the PC card slot. A frame having a plurality of protrusions on which the front connector, the back connector, and the printed wiring board are mounted, and a frame which covers the upper surface of the frame of a portion to be inserted into the PC card slot and which engages with the protrusions. An upper cover that has a mating portion and is fixed to the frame by engaging the engaged portion with the protrusion; and at least a portion that is inserted into the PC card slot and covers the lower surface of the frame. A lower cover that has an engaged portion that engages with the protrusion, and is fixed to the frame by engaging the engaged portion with the protrusion. PC card, characterized in that was. 2. The PC card according to claim 1, wherein the upper cover and the lower cover have an engagement hole formed in one of them, and an engagement hole inserted and locked in the engagement hole. A PC card characterized by being fixed by a claw. 3. The PC card according to claim 2, wherein the engaging hole and the locking claw are provided on a locking piece formed on the upper cover and the lower cover, and these locking is performed. A PC card, wherein a piece is inserted into a locking piece insertion hole formed in the frame, and the locking claw is inserted and locked in the engagement hole in the locking piece insertion hole. 4. P according to any one of claims 1 to 3.
A PC card, which is a C card, wherein the upper cover and the lower cover are provided so as to extend to a position to cover the front connector. 5. The P according to any one of claims 1 to 4.
A C card, wherein the upper cover and the lower cover are shield plates.