CN2511101Y

CN2511101Y - Apparatus for stopping electromagnetic wave interference of circuit board

Info

Publication number: CN2511101Y
Application number: CN 01275979
Authority: CN
Inventors: 蔡兰香
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-06
Filing date: 2001-12-06
Publication date: 2002-09-11
Anticipated expiration: 2011-12-06

Abstract

A device for preventing the electromagnetic interference wave in the circuit board includes at least one electric circuit board, a metal area isolation plate and a metal top cover plate. The upper and lower top surfaces of the electric circuit board are respectively provided with a plurality of circuit area blocks which are connected mutually, and the external frame metal edge and the inner side metal edge of the circuit area block are provided with a plurality of via holes in a suitable size with a suitable interval therebetween; The metal area isolation plates are provided with a convex edge and a convex point upwards, and the surrounding thereof is provided with a clamping hole and an inserted foot. The metal top cover plate is provided with a bending plate, and the bending plate and the top cover plate are provided with a clamping hook. Wherein, the clamping hook can be clamped at the clamping hole of the metal area isolation plate, and the electromagnetic interference wave in the circuit board can be totally prevented by the complete contacting between the bump as well as the upward flange of the meal area isolation plate and the metal top cover plate, furthermore the device is convenient in assembly, disassembly and maintenance.

Description

Can stop the device of electromagnetic interference wave on the circuit board

Technical field

The utility model relates to a kind of device of stopping electromagnetic interference wave on the circuit board, refers to a kind of device that makes each upper and lower end face of circuit board may or directly be completely cut off electromagnetic interference wave on the circuit board of stopping stopped to microelectronics part and human body harmful's undesirable element (as electromagnetic interference wave, dust and dirt and oxidation factor) especially.

Background technology

Because the development of computer in recent years makes human life and workpiece mode that great progress arranged, the upward too busy to get away computer calculation process of society also has been a undisputable fact now.Be not only family, school or company, bank, show invariably computer with user's demand and information supplier and upgrade greatly on the function progressive among.Though the computer treatment effeciency is fast; yet when working at high speed through regular meeting because of when running the power electronics part electromagnetic wave leak outside and have troubles; produce the not good hysteresis effect of circuit shielding; in the course of time just the time and produce the phenomenon of fault; wherein be installed in individual laptop computer or present popular at present personal palm dataphone equipment etc.; especially the PBA printed board arrangement that needs high frequency is in it; so when making the printed circuit board (PCB) of high frequency; special procure and detect constantly and irritate into software on this type of printed circuit board (PCB); after finishing printed circuit board (PCB), need to detect convenience such as its electromagnetic interference and dismounting maintenance in the future more simultaneously.Therefore, in the manufacturing of the printed circuit board (PCB) of high frequency, electromagnetic interference, maintenance, easy accessibility promptly are one of important consideration.

In addition, known a kind of " conversion of host computer keyboard connector and anti electromagnetic wave cover plate " of numbering No. 400964 as the Taiwan patent gazette, this cover plate is to be formed with the snapping sheet that most sheets vertically reach horizontally set in its periphery, and the window periphery correspondence of reserving in the host computer back side of shell is provided with the snapping hole, make the place, centre of this cover plate offer a throwing part, make to be fixedly arranged on the computer motherboard and and can be pegged graft corresponding to the keyboard of this window or the adapter of mouse; Wherein, this throwing part is to have an AT type inserting hole; And wherein this throwing part is to have two PS2 type inserting holes; And wherein respectively this PS2 type inserting hole is to be provided with a shell fragment in the appropriate position of periphery on every side in it, make keyboard (or mouse) adapter that is fixedly arranged on the motherboard can be butted on this shell fragment, and then make excellent contact with this host computer housing, reach and prevent that effectively electromagenetic wave radiation from disturbing.It has following shortcoming: for example the major function of this cover plate is to finish no electromagenetic wave radiation effect by the distortion ground connection of this shell fragment, owing to be easy to generate the loose contact state, this haves much room for improvement; Because be only applicable on the adapter of computer motherboard, and can't be applied to make on the circuit board electromagnetic wave that is produced to reach the purpose that prevents that fully it from leaking outside, this also haves much room for improvement; And because the closure deficiency, so the effect of ELECTROMAGNETIC OBSCURANT is not good enough, this also haves much room for improvement; And because dismounting is difficult for, so the ground connection effect of ELECTROMAGNETIC OBSCURANT is just very limited, this also haves much room for improvement.

Summary of the invention

Main purpose of the present utility model is to provide a kind of device of stopping electromagnetic interference wave on the circuit board, makes circuit board dismounting maintenance simultaneously, detects easily, and it comprises at least one circuit board, a metal area dividing plate and a metal roof cover plate; On each circuit board/following end face is to be respectively equipped with a plurality of circuit blocks that are connected with group, and make the winding that suitably is electrically connected of electronic component on each circuit blocks, and on the housing metal edge of each circuit blocks and inboard metal edge, be equipped with the perforation of a plurality of suitable sizes with appropriate intervals, use the usefulness that the cross-under fixing is provided, and this housing metal edge and inboard metal edge be ground connection (Grounding) in addition all, make circuit ground to make ground connection have more elasticity, effective by the extension expansion of this housing metal edge and inboard metal edge.

A purpose more of the present utility model is to provide a kind of device of stopping electromagnetic interference wave on the circuit board, and it comprises at least one circuit board, a metal area dividing plate and a metal roof cover plate; Wherein this metal area dividing plate set firmly and electric welding on each circuit board/each perforation of following end face housing metal edge and inboard metal edge on, this metal area dividing plate is to be provided with shapes such as a plurality of and homalographic greatly less than the separation block on each circuit blocks, and can and suitably be contacted with on each circuit board each relative edge's bending, with suitable isolation that each marker space interblock is provided and prevent the effect of being out of shape, wherein be provided with suitable upwards bead and salient point in each metal area dividing plate, and the upwards bead on the metal area dividing plate is contacted fully with the metal roof cover plate, finish first defence line of electromagnetic interference, and the zone of special high frequency, do defence line, second road with salient point again, do not separate the electromagnetic bad interference of block so that can not be subjected to other completely during the running of this circuit board, the circuit running is able to steadily, no noise.

Another purpose of the present utility model is to provide a kind of device of stopping electromagnetic interference wave on the circuit board, and it comprises at least one circuit board, a metal area dividing plate and a metal roof cover plate; Wherein this metal roof cover plate is the sheet metal that is flat rectangle, and outer rim is to be bent into bent sheet all around, and the appropriate intervals place is equipped with the grab of a plurality of suitable sizes on this bent sheet, the hole clipping combination of each grab on can corresponding metal area dividing plate, in conjunction with after, make the inboard upper limb of the complete contacting metal lamina tecti of upwards bead on the metal area dividing plate, so, just can reach the effect of stopping electromagnetic interference wave on the circuit board fully, the life-span of circuit board is increased, stablize.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is a three-dimensional combination figure of the present utility model;

Fig. 3 is the constitutional diagram of analysing and observe of the present utility model.

Among the figure

1 circuit board 22 is bead upwards

On 11/following end face 23 hole clippings

111 circuit blocks, 24 pins

112 metal edge, 25 salient points

113 metal edge, 3 metal roof cover plates

114 perforation, 30 sheet metals

2 metal area dividing plates, 31 bent sheet

21 separate block 32 grabs

Embodiment

Following conjunction with figs. elaborates to the utility model:

Fig. 1 is to shown in Figure 3, its three-dimensional exploded view of the present utility model, three-dimensional combination figure, analyses and observe constitutional diagram.The utility model is to provide a kind of electromagnetic interference wave on the circuit board, dismounting, maintenance, detection stopped to install easily, and it is to comprise at least one circuit board 1, a metal area dividing plate 2 and a metal roof cover plate 3.

On each circuit board 1/following end face 11 is respectively equipped with a plurality of circuit blocks that are connected with group 111, and make the winding that suitably is electrically connected of electronic component on each circuit blocks 111, and on the housing metal edge 112 of each circuit blocks and inside casing metal edge 113, be equipped with the perforation 114 of a plurality of suitable sizes with appropriate intervals, the usefulness of the pin fixing that provides on the metal area dividing plate is provided, and the equal ground connection (Grounding) in addition of this housing metal edge 112 and inboard metal edge 113.

This metal area dividing plate 2 mats plural number pin 24 set firmly and electric welding on each circuit board 1/respectively the boring a hole on 114 of following end face 11 housing metal edge 112 and inboard metal edge 113, this metal area dividing plate 2 is provided with shapes such as a plurality of and homalographic greatly less than the separation block 21 on each circuit blocks 111, and can with each relative edge's bending and on each metal area dividing plate 2 appropriate location be provided with a plurality of upwards beads 22, hole clipping 23 and salient point 25, utilize the defence line in make progress flange 22 and salient point 25 works two roads, so that the optimal isolation of respectively separating 21 of blocks to be provided respectively, and to be unlikely fully when making circuit board 1 running and to be subjected to the electromagnetic interference that other separates each set circuit blocks 111 of block 21.

This metal roof cover plate 3 is the sheet metals 30 that are flat rectangle, outer rim is to be bent into bent sheet 31 around it, and the appropriate intervals place is equipped with the grab 32 of a plurality of suitable sizes on this bent sheet 31, each grab 32 can be fastened on the hole clipping 23 on the metal area dividing plate, because of metal area dividing plate 2 around bending edge downward, so rise to the bait 32 be arranged on the hole clipping after, also can utilize the elasticity of flanging to take apart again, metal roof cover plate 3 is taken out, be easy to purpose so that reach the dismounting maintenance.

The utlity model has many advantages:

1. engaging of metal roof cover plate and metal area dividing plate, easy disassembling, and then make in the manufacture process of circuit board because of circuit and install the needs of software additional, and reaches the convenience of testing circuit plate at any time.

2. metal roof cover plate and the punching out of metal area dividing plate full wafer, a large amount of manufacturing easily.

3. upwards flange and the salient point on the metal area dividing plate can be made excellent contact with metal roof cover plate inner edge, forms Erdao District every the defence line.

4. can reach and stop electromagnetic interference wave on the circuit board fully, refer to that especially frequency electromagnetic waves is more effective, the life-span of circuit board is increased, stablize, very healthy, nature.

The above only is a most preferred embodiment of the present utility model, and all any engineering staffs who knows present technique are according to spirit of the present utility model, and variation of being done and modification all should be encompassed in of the present utility model checking and approving in the patent claim.

Claims

1. the device that can stop electromagnetic interference wave on the circuit board, it is characterized in that comprising at least one circuit board, which is provided with the plurality of circuits block, and be equipped with the perforation of a plurality of suitable sizes on set housing metal edge of each circuit blocks and the inboard metal edge with appropriate intervals;

One metal area dividing plate, this metal area dividing plate mat plural number pin set firmly and electric welding on each circuit board/each perforation of following end face housing metal edge and inboard metal edge on, this metal area dividing plate is to be provided with shapes such as a plurality of and homalographic greatly less than the separation block on each circuit blocks, and the downward bending of outer rim all around offers hole clipping in the bending part top;

One metal roof cover plate, outer rim is to be provided with bent sheet around this metal roof cover plate, and the appropriate intervals place is the grab that is equipped with a plurality of suitable sizes on this bent sheet, hole clipping engaging or the dismounting of each grab on can corresponding metal area dividing plate makes the metal roof cover plate combine fast and dismounting with the metal area dividing plate.

2. the device of stopping electromagnetic interference wave on the circuit board according to claim 1 is characterized in that all ground connection in addition of this housing metal edge and inboard metal edge.

3. the device of stopping electromagnetic interference wave on the circuit board according to claim 1, it is characterized in that this metal area dividing plate can with each relative edge's bending and on each metal area dividing plate the appropriate location be provided with a plurality of upwards bead, hole clipping and salient points.