CN2840619Y

CN2840619Y - Anti-electromagnetic interference shielding cover structure

Info

Publication number: CN2840619Y
Application number: CN 200520115019
Authority: CN
Inventors: 林江俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-29
Filing date: 2005-07-29
Publication date: 2006-11-22
Anticipated expiration: 2015-07-29

Abstract

The utility model relates to an anti-electromagnetic interference shielding cover structure which is provided with a shielding body. A holding space exists in the shielding body for holding electronic components; two first side break-lines (such as seams, pre-broken lines, pore lines, etc.) are arranged near two side edges of the top part of the shielding body, the middle part of each first side break-line is provided with a middle break-line (such as seams, the pre-broken lines, pore lines, etc.), and two cover plates which can be raised upwards are formed on the top part of the shielding body; thus, a shielding cover is formed, and can cover the outer parts of electronic components installed on a circuit board, therefore an electromagnetic wave shielding effect can be provided by the shielding cover to prevent the electromagnetic wave from influencing the operation of the electronic components; moreover, the design of the anti-electromagnetic interference shielding cover structure can substantially reduce the required material cost.

Description

Anti-electromagnetic interference mask structure

Technical field

The utility model is relevant for a kind of anti-electromagnetic interference mask structure, and referring to especially a kind ofly can provide electromagnetic shielding effect in order to be covered in the electronic building brick outside, and the mask structure that can reduce cost.

Background technology

In order to prevent that Electromagnetic Interference (EMI) from having influence on chip, the running of electronic building bricks such as central processing unit, existing on the market a kind of mask (as Fig. 1) in order to prevent electromagnetic interference, this mask 7 includes a lower cover 71 and a loam cake 72, this lower cover 71 is the frame type, this loam cake 72 is a plate body corresponding to lower cover 71, this loam cake 72 is fixed in lower cover 71 tops, use the mask 7 of forming a hollow form, and can be covered in electronic building brick 9 outsides that are installed on the circuit board 8, this mask 7 and suitable being fixed on the circuit board 8, thereby but this mask 7 of mat provides electromagnetic shielding effect, has influence on the running of electronic building brick 9 to prevent Electromagnetic Interference.

But above-mentioned known mask 7 is a two part, and its lower cover 71 and loam cake 72 are all metal towards part, all need mould molding, so its manufacturing cost is higher.

So as from the foregoing, above-mentioned known mask structure on reality is used, obviously has inconvenience and exists with disappearance, and can wait to be improved.

So, the improving of the above-mentioned disappearance of this creator thoughts, the spy concentrates on studies and cooperates the utilization of scientific principle, proposes a kind of reasonable in design and effectively improve the utility model of above-mentioned disappearance finally.

The utility model content

Main purpose of the present utility model is to provide a kind of anti-electromagnetic interference mask structure, and it can provide electromagnetic shielding effect in order to be covered in the electronic building brick outside, and its design can significantly reduce required Material Cost.

In order to reach above-mentioned purpose, the utility model provides a kind of anti-electromagnetic interference mask structure, it has a cover body, this cover body inside is provided with an accommodation space, nearly dual side-edge edge place, this cover body top is provided with 2 first side stripings, striping in the middle of being provided with one in the middle of this 2 first side striping makes this cover body top form two cover plates that can upwards start.

The utility model mainly is to be provided with striping in the cover body top of mask, makes the cover body top form two cover plates that can upwards start, and this two cover plate start very easily simple, maintenance that can convenient electronic building brick.

For enabling further to understand the feature and the technology contents of this creation, see also following detailed description and accompanying drawing, yet appended graphic reference and the explanation usefulness of only providing not is to be used for the utility model is limited about this creation.

Description of drawings

Fig. 1 is the three-dimensional exploded view of known mask and electronic building brick.

Fig. 2 is the stereogram of the utility model first embodiment mask.

Fig. 3 is the stereogram of the utility model first another angle of embodiment mask.

Fig. 4 is the three-dimensional exploded view of the utility model first embodiment mask and electronic building brick.

Fig. 5 is the stereogram that the utility model first embodiment mask starts state.

Fig. 6 is the stereogram of the utility model second embodiment mask.

Fig. 7 is the stereogram of the utility model the 3rd embodiment mask.

Fig. 8 is the stereogram of the utility model the 4th embodiment mask.

Fig. 9 is the stereogram of the utility model the 4th another angle of embodiment mask.

Figure 10 is the stereogram of the utility model the 5th embodiment mask.

Figure 11 is the stereogram of the utility model the 5th another angle of embodiment mask.

The primary clustering symbol description

[known]

7 masks

71 lower covers

72 loam cakes

8 circuit boards

9 electronic building bricks

[the utility model]

1 mask

11 cover bodies

111 top boards, 112 side plates

113 accommodation spaces, 114 first finedraws

115 pre-broken string 116 cover plates

117 second finedraws, 118 hole lines

119 break in advance

12 films

2 electronic building bricks

3 circuit boards

Embodiment

See also Fig. 2 and Fig. 3, the utility model provides a kind of anti-electromagnetic interference mask structure, this mask 1 is made with metal material, it has one can be in order to be covered in the outside cover body 11 of electronic building brick 2 (as Fig. 4), this cover body 11 is the ducted body of a square or other shape, its shape does not limit, and can do suitable variation in response to the difference of electronic building brick 2 profiles.

The metalwork of this cover body 11 for forming with the metal material punching out, the side plate 112 that includes a top board 111 and extend downwards by these top board 111 four side edge, be formed with an accommodation space 113 between this top board 111 and the side plate 112, and can make this cover body 11 can be covered in electronic building brick 2 outsides in order to hold this electronic building brick 2.

Top board 111 upper punches of this cover body 11 are made first finedraw 114 that two intervals are provided with and are parallel to each other, these 2 first finedraws, 114 width are about 0.4mm or other suitable size, this 2 first finedraw 114 is positioned at nearly dual side-edge edge place on the top board 111, two ends of this 2 first finedraw 114 also extend to top board 111 nearly dual side-edge edge places in addition, this 2 first finedraw 114 has the function of disconnection as the first side striping.

Go out a pre-broken string 115 in the disconnected mode of semishearing in the middle of this 2 first finedraw 114, this breaks 115 in advance as middle striping, has the function of disconnection.Form two square cover plates 116 that can upwards start on the top board 111 and can utilize this 2 first finedraw (the first side striping) 114 and pre-broken string (middle striping) 115 to make.

Go out two pre-broken strings 119 in addition in the disconnected mode of semishearing between these 2 first finedraws, 114 2 ends, this breaks 119 in advance as the second side striping, the function that has bending and disconnect; Prevent electromagnetic interference mask structure by above-mentioned composition to form the utility model.

See also Fig. 4, the utility model mask 1 can be covered in electronic building brick 2 outsides that are installed on the circuit board 3, this mask 1 and can be suitable be fixed on the circuit board 3, thereby but this mask 1 of mat provides electromagnetic shielding effect, have influence on the running of electronic building brick 2 to prevent Electromagnetic Interference.

See also Fig. 5, when this electronic building brick 2 needs repairing, can prejudge the place of line 115 from the centre and tear, this two cover plate 116 can upwards be started along 2 first finedraws 114, after two cover plates 116 are started, can keep in repair; When two cover plates 116 further started to two pre-broken strings 119, this two cover plate 116 can two pre-broken strings 119 disconnects with cover body 11 and separating, and makes cover body 11 tops can form bigger opening shape, and convenient maintenance.Then add loam cake (figure slightly) answer after the maintenance in addition in mask 1 top.

See also Fig. 6, the utility model also can punching out go out one second finedraw (middle striping) 117 in the middle of this 2 first finedraw 114, these second finedraw, 117 width are about 0.4mm or other suitable size, and this second finedraw 117 has the function of disconnection as middle striping.In the time of will keeping in repair when the time comes, after from middle second finedraw 117 two cover plates 116 being started, can keep in repair.In addition, centre stripings such as the pre-broken string 115 of the foregoing description, second finedraw 117 also can wait the striping of other pattern to replace by hole line (figure slightly).

See also Fig. 7, if when having strong electromagnetic wave or client that the special requirement electromagnetic shielding is arranged, then the foregoing description can be thrust 2 first finedraws (the first side striping) 114 partly replaces with two hole lines 118, this hole line 118 is made up of most the holes that are provided with at interval, the width of this hole and length are about the suitable size of 0.4mm and 3.0mm or other respectively, be connected owing to still have between hole and the hole, can use the screening effect that reaches stronger.This two holes line 118 is the first side striping, has the function of disconnection.In addition, the first side stripings such as first finedraw 114 of the foregoing description, hole line 118 also can break in advance (figure slightly) wait the striping of other pattern to replace.

In addition, the pre-broken string of the foregoing description (the second side striping) 119 also can wait the striping of other pattern to replace by hole line (figure slightly).

See also Fig. 8 and Fig. 9, if the more effective effect that reaches electromagnetic shielding, can stick a slice in cover body 11 inboards of mask 1 and can intercept electromagnetic film 12, this film 12 is tinfoil paper or Copper Foil, this film 12 is attached at top board 111 inboards in gluing mode, uses the effect that reaches better obstruct.When this two cover plate 116 is desired to start, can be by finedraw 114, film 12 is severed at 115 places that break in advance, so that two cover plates 116 can start smoothly.

See also Figure 10 and Figure 11, the utility model second finedraw (middle striping) 117 also can be designed to different shapes, make these two cover plates, 116 adjacent ends can form different shapes, and this film 12 only is attached at the position of top board 111 inboards near second finedraw 117.

Stripings such as the utility model is provided with finedraw 114,117, breaks 115 in advance in cover body 11 tops of mask 1, hole line 118, make cover body 11 tops form two cover plates that can upwards start 116, and this two cover plate 116 start very simple easily, maintenance that can convenient electronic building brick 2.

Mask of the present utility model (lower cover) is after maintenance, though also needing a loam cake replys, but the loam cake use amount can significantly reduce, the probability that needs repairing after all is not high, 100,000 of lower cover demands every month during volume production for example, maintenance rate 1%, then the loam cake demand needs only 1000, so the utility model design can significantly reduce required Material Cost.

But the above only is a preferable possible embodiments of the present utility model, non-so promptly limit to claim of the present utility model, so the equivalent structure that uses the utility model specification and accompanying drawing content to be done such as changes, and all in like manner all is contained in the scope of the present utility model.

Claims

1, a kind of anti-electromagnetic interference mask structure, it is characterized in that, has a cover body, this cover body inside is provided with an accommodation space, nearly dual side-edge edge place, this cover body top is provided with 2 first side stripings, striping in the middle of being provided with one in the middle of this 2 first side striping makes this cover body top form two cover plates that can upwards start.

2, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that this cover body is a metalwork.

3, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that, the side plate that this cover body includes a top board and extended downwards by this top board edge, and this accommodation space is formed between this top board and the side plate.

4, anti-electromagnetic interference mask structure as claimed in claim 3 is characterized in that this 2 first side striping and middle striping are located on the top board of this cover body.

5, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that, this cover body inboard is sticked and one can intercepts electromagnetic film.

6, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that, this 2 first side striping is parallel to each other.

7, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that, this 2 first side striping is a finedraw.

8, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that, this 2 first side striping is the hole line.

9, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that, this 2 first side striping is pre-broken string.

10, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that this centre striping is a finedraw.

11, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that this centre striping is the hole line.

12, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that, this centre striping is pre-broken string.

13, anti-electromagnetic interference mask structure as claimed in claim 1 is characterized in that, is provided with 2 second side stripings between these 2 first side stripings, two ends.

14, anti-electromagnetic interference mask structure as claimed in claim 13 is characterized in that, this 2 second side striping is pre-broken string.

15, anti-electromagnetic interference mask structure as claimed in claim 13 is characterized in that, this 2 second side striping is the hole line.