CN2364499Y

CN2364499Y - Expansion card fixing device for casing of computer

Info

Publication number: CN2364499Y
Application number: CN 99235546
Authority: CN
Inventors: 吕天送; 陆群枫; 高屯
Original assignee: Fujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Fujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 1999-03-11
Filing date: 1999-03-11
Publication date: 2000-02-16
Anticipated expiration: 2009-03-11

Abstract

The utility model relates to an expansion card fixing device for a computer casing, comprising a back plate, a fixing cover and a plurality of screws. The utility model is used for fixing an expansion card and inserting the expansion card on a mainboard. The back plate is provided with a plurality of expansion card grooves which are used for installing the expansion card. A metal guard sheet of the expansion card is arranged on the expansion card grooves. A fixing sheet is formed by bending and is arranged near the expansion card grooves; the bent part of the metal guard sheet of the expansion card is clamped and fixed on the fixing sheet. The fixing cover is provided with a plurality of bunting and pressing elastic sheets. The bent part of the expansion card is pressed tightly on the fixing sheet of the back plate by the bunting and pressing elastic sheets of the fixing cover, and the fixing cover is fixedly locked on the back plate by screws. Therefore, the effect of fixing the expansion card is achieved.

Description

The holding device for expansion card of computer casing

A kind of holding device for expansion card of computer casing, the holding device for expansion card of the well secured effect of particularly a kind of tool.

With the work people computer function is required constantly to promote, computer inner more hardware of installing and software usually, and expansion board is the device of general modal lifting computer function.With regard to general existing personal computer system, common device has various expansion boards with difference in functionality on its intrasystem motherboard, generally comprises figure acceleration display card, video signal card, networking card and adlib etc. and promotes the computer system function in order to promote.Behind the computer casing on the rear window of plate and be provided with some expansion draw-in grooves, and these to expand draw-in grooves be for expansion board in order to device and fixing thereon.

Yet existing computer casing still has following point:

The first, rear window is fixed in this rear window on the back plate of computer casing with screw lock, riveted or blind rivet mode after being mostly drawing respectively with the back plate again.These rear windows are the parts that separates for two with the back plate, manufacturing cost such as mould and material is all higher, and except must rear window or back establish on the plate many riveted points, screw and blind rivet hole in order to combination, it is inner outstanding to computer casing from this back plate mostly general rear window is, often makes the physical dimension of computer casing excessive.

Secondly, these expansion board one sides then are to be locked in a metal catch, relend by this metal catch with the expansion draw-in groove side of screw locking in rear window, and then fix this expansion board.And the metal catch of each expansion board often need be locked in rear window one by one with screw, thereby has increased considerably complexity and assembling man-hour of assembling.

Consider from the size of computer casing, and even the complexity of various packing engineerings, even the height of manufacturing cost, existing computer casing cooperates the installing of each expansion board still to have quite a lot of urgency shortcoming to be improved, therefore, need a kind ofly to install simple, with low cost and save the Improvement type computer casing in space again.

The prior art relevant with above-mentioned technology sees also the Taiwan patented claim the 80205479th, 81209744,85200273,85218324 and No. 87200066, and United States Patent (USP) the 4th, 873,395,4,979,075,5,004,867,5,076,619 and 5,650, No. 922 etc.

The purpose of this utility model provides a kind of holding device for expansion card of computer casing, and it is not only simple in structure, the well secured effect of tool, and can to cooperate rear window and back plate be computer casing device and fixing some expansion boards of integral type.

The purpose of this utility model is achieved through the following technical solutions: a kind of holding device for expansion card of computer casing, plate, fixed cap and some screws after it comprises are in order to the fixing expansion board and it is inserted on the motherboard.Wherein this back plate is provided with the expansion draw-in groove of some device expansion boards, and the metal catch of this expansion board is to be installed on this expansion draw-in groove, then bending is provided with retaining sheet near the expansion draw-in groove, the kink of expansion board metal catch is fastened on this retaining sheet, and this fixed cap is provided with some shell fragments that compress, the shell fragment that compresses by this fixed cap presses on the retaining sheet of this back plate the kink of this expansion board, and borrows screw that this fixed cap is locked in this back plate, realizes the fixedly effect of expansion board.

By technique scheme, the utility model has not only been simplified expansion board and has been installed on the process that expands draw-in groove, has reduced assembling man-hour, has saved cost, and can make the expansion board better be fixed in the expansion draw-in groove.

Fig. 1 is the three-dimensional exploded view of the holding device for expansion card of the utility model computer casing.

Fig. 2 is the part stereo amplification figure of plate behind the utility model.

Fig. 3 is the stereo amplification figure of the utility model fixed cap.

Fig. 4 is the stereographic map that expansion board is installed on plate behind the utility model.

Fig. 5 is the three-dimensional combination figure of the holding device for expansion card of the utility model computer casing.

Fig. 6 is the three-dimensional exploded view of the utility model second embodiment.

See also shown in Figure 1ly, the holding device for expansion card 100 of the utility model computer casing comprises back plate 20, fixed cap 40 and some screws 60 etc., in order to fixing expansion board 80 and this expansion board 80 is inserted on the motherboard (figure does not show).

See also shown in Figure 2, be respectively equipped with some expansion draw-in grooves 23 that are arranged in parallel, output input connector device hole 25 and power supply unit device hole 26 on this back plate 30, wherein bending is provided with retaining sheet 21 outside these expand draw-in groove 23 1 side direction, and is formed with opening 31.The root edge of this opening 31 outwards is bent with a L shaped bent sheet 32, so as to supporting this fixed cap 40, this opening 31 then is provided with some screws 33 with respect to the opposite side of retaining sheet 21, in order to this fixed cap 40 of attachment screw 60 screw locks in this back plate 20 on, and be provided with some cataphracted abutting parts 34 that are, in order to butt fixed cap 40, thereby be convenient to fixedly mount this fixed cap 40.More be provided with some grounding elastic parts 35 in addition between two abutting parts 34, this grounding elastic part 35 is provided with the salient point 36 of outside protrusion, to contact really with fixed cap 40, is grounded effect.

Be provided with plurality of

projections

27a, 27b, 27c corresponding to 23 of expansion draw-in grooves arranged side by side on this retaining sheet 21, these

teats

27a, 27b, 27c are outstanding towards these opening 31 directions, wherein these teats 27a is rounded, and teat 27c is two salient points, and other teat 27b then takes the shape of the letter U.And expansion board 80 1 sides are device metal catch 81, and this metal catch 81 outwards is bent to form kink 82 and is provided with an arc notch 83 in the top, so as to being fastened on lobe 27a on these back plate 20 retaining sheets 21 and the circular arc ora terminalis 28 of U-shaped teat 27b, these metal catch 81 kinks 82 ora terminalis 84 then can be connected to the U-shaped teat 27b straight line ora terminalis 29 or the teat 27c of this retaining sheet 21.

The continuous Fig. 1 and shown in Figure 3 that sees also, this fixed cap 40 are bent into by the sheet metal one that "  ＂ font, this fixed cap 40 comprise main part 41 and two

flanks

42,43, and a side of the main part 41 nearside wings 42 of this fixed cap 40 is provided with plurality of elastic and compresses shell fragment 44.One flank 42 of this fixed cap 40 corresponding to the back plate 20 screw 33 then be provided with some screws 45, and can by these some screws 60 with these fixed cap 40 screw locks in this back plate 20 on.

See also shown in Figure 4, the metal catch 81 of these some expansion boards 80 can be installed in the expansion draw-in groove 23 of this back plate 20, its breach 83 by these metal catch 81 kinks 82 is snapped in the teat 27a or the 27b of these back plate 20 retaining sheets 21, and be close to retaining sheet 21 surfaces of this back plate 20 by this kink 82, make this expansion board 80 on all directions of upper and lower, left and right, can obtain to fix.

See also shown in Figure 5ly, after this expansion board 80 is snapped in the retaining sheet 21 of this back plate 20, can fix in addition the metal catch 81 of this expansion board 80, move relative to vertical direction in this retaining sheet 21 to prevent this metal catch 81 by fixed cap 40.The main part 41 of this fixed cap 40 at first is inserted in the retaining sheet 21 of this back plate 20, bent sheet 32 by these back plate 20 openings 31 imposes a supporting role that makes progress, and the abutting part 34 that can borrow this back plate 20 is resisted against the flank 42 of this fixed cap 40, after the main part 41 of this fixed cap 40 is inserted in this behind retaining sheet 21 of plate 20, this main part 41 compress the kink 82 that 44 on shell fragment presses on this expansion board 80, the kink 82 of this expansion board 80 is gripped compresses 44 on shell fragment in the retaining sheet 21 of this back plate 20 and this fixed cap 40.Be locked in corresponding some

screws

33 and 45 of back plate 20 and fixed cap 40 with fixing expansion board 80 at last by these some screws 60.

Seeing also shown in Figure 6ly, is second embodiment 100 ' of the present utility model, it is different with previous embodiment be in retaining sheet 21 in this back plate 20 ' outwards bending ' be provided with some fixing mouths 27 '.This expansion board 80 ' metal catch 81 ' kink 82 ' on then relatively bending be provided with the fixing sheet 83 parallel with expansion board 80 ' leading portion ', this fixing sheet 83 ' front end can slightly be a gradient, be convenient to be fastened in this back plate 20 ' retaining sheet 21 ' fixing mouth 27 '.And by this fixed cap 40 ' main part 41 ' compress this expansion board 80 of shell fragment 44 ' press on ' kink 82 ' surface, in addition can by this some screws 60 ' be locked in back plate 20 ' and fixed cap 40 ' corresponding some screws 33 ' and 45 ' in fixing expansion board 80 '.

Claims

1. the holding device for expansion card of a computer casing, be stuck in the computer casing in order to install the expansion that a side has a metal catch, and this metal catch and be provided with bent sheet, this bent sheet further is provided with arc notch, this holding device for expansion card comprises: be provided with back plate and fixed cap that plurality of parallel expands draw-in groove, it is characterized in that: this back plate is provided with retaining sheet in the outer bending of a side direction that these expand draw-in grooves, and this retaining sheet also is provided with plurality of projections with respect to each expansion draw-in groove; And this fixed cap is provided with some shell fragments that compress; The bent sheet of this expansion board metal catch places on the retaining sheet of this back plate, the arc notch of this bent sheet is fastened in teat relative on this retaining sheet, the shell fragment that compresses of this fixed cap then presses solidly bent sheet in expansion board, and this fixed cap is fixed in this back plate, with these expansion boards of fixing.

2. the holding device for expansion card of computer casing according to claim 1, it is characterized in that: this back plate outwards bends this retaining sheet and forms an opening.

3. as the holding device for expansion card of computer casing as described in the claim 2, it is characterized in that: this opening one end further is provided with the bent sheet that supports this fixed cap.

4. as the holding device for expansion card of computer casing as described in the claim 3, it is characterized in that: this bent sheet is left the back plate and outwards is bent into L shaped.

5. the holding device for expansion card of computer casing according to claim 1, it is characterized in that: this back plate is provided with output input connector device hole and power supply unit device hole.

6. as the holding device for expansion card of computer casing as described in the claim 2, it is characterized in that: this back plate is provided with some abutting parts that end this fixed cap that support in the opposite side of this opening.

7. as the holding device for expansion card of computer casing as described in the claim 6, it is characterized in that: this abutting part is the fish scale shape.

8. as the holding device for expansion card of computer casing as described in the claim 2, it is characterized in that: this back plate more is provided with some these fixed caps that contact to form the grounding elastic parts of grounded circuit in the opposite side of this opening.

9. as the holding device for expansion card of computer casing as described in the claim 8, it is characterized in that: outwards convex with on this grounding elastic part to be connected to the salient point of this fixed cap.

10. the holding device for expansion card of computer casing according to claim 1, it is characterized in that: the teat of this retaining sheet is provided with the arc ora terminalis of arc opening relative on the bent sheet that is fastened in relative expansion board metal catch.

11. the holding device for expansion card of computer casing according to claim 1 is characterized in that: the bent sheet of this expansion board metal catch is provided with an ora terminalis that can be resisted against straight line ora terminalis relative on the teat of this retaining sheet.

12. the holding device for expansion card of computer casing according to claim 1, it is characterized in that: being equipped with on this back plate and the fixed cap can be by the corresponding screw of screw locking.

13. the holding device for expansion card of computer casing according to claim 1, it is characterized in that: at least one wall of this fixed cap is to place on this retaining sheet, and is folded in wherein with the bent sheet of this retaining sheet with expansion board metal catch.

14. as the holding device for expansion card of computer casing as described in the claim 13, it is characterized in that: these compress shell fragment is to be arranged on this wall.