CN2375999Y

CN2375999Y - Computer mainframe capable of reducing electromagnetic radiation

Info

Publication number: CN2375999Y
Application number: CN 99212909
Authority: CN
Inventors: 蔡佳霖
Original assignee: Mitac International Corp
Current assignee: Mitac International Corp
Priority date: 1999-06-15
Filing date: 1999-06-15
Publication date: 2000-04-26
Anticipated expiration: 2009-06-15

Abstract

The utility model relates to a computer housing capable of reducing electromagnetic radiation. The computer housing comprises a metallic shell, a fixing device, and a panel, wherein, the fixing device is arranged in the metallic shell to fix a peripheral device, the panel is arranged at the front end of the metallic shell and is provided with an opening, and the front end of the peripheral device is positioned in the square opening. The front side edge of the upper side edge of the metallic shell near the opening or the lower side edge is provided with a plurality of metallic antenae which are integrally formed with the metallic shell and are distributed in a straight line to contact the upper side edge or the lower side edge of the peripheral device to block the external leakage electromagnetic radiation.

Description

Can reduce the computer housing of electromagnetic radiation

The utility model relates to a kind of computer housing, particularly relates to a kind of computer housing that can be used for reducing electromagnetic radiation.

General computing machine is made up of many membrane modules such as interface card, hard disk and power supply unit, these membrane modules are contained in the computer housing and by the mutual communication of many electrical wirings different in size, and the electronic signal of these membrane modules and electrical wiring all has very high frequency, for example the frequency of central processing unit is just up to hundreds of MHz, so computing machine more or less has the generation of electromagnetic radiation (electromagneticwave).Electromagnetic radiation can produce adverse influence to user or surrounding environment, i.e. electromagnetic interference (EMI) (electromagnetic wave interference), so the standard of electromagnetic interference (EMI) has all been formulated in each country.For fear of electromagnetic interference (EMI), computer housing generally all is to be made by metal material, to prevent electromagnetic radiation.

Peripheral devices such as general CD player or floppy drive all are located in the computer housing, so some openings must be arranged on the computer housing, and the user can place discs or diskette sheet via these openings.And the slit between these openings and computer housing and peripheral device can form a kind of electromagnetism path, and the electromagnetic radiation in the computing machine just is easy to be leaked to surrounding environment by this electromagnetism path, causes the increase of electromagnetic interference (EMI).

The method that active computer reduces electromagnetic radiation is to utilize the conducting element of some elastically deformables, for example conductive sponge or metal clips, plug the slit between computer housing and peripheral device, because the electric conductivity of element, element just can form a kind of electromagnetic radiation barrier (shielding) and block the interior electromagnetic radiation of computer housing, leaks away via the electromagnetism path between computer housing and peripheral device.Reduce the very trouble that the electromagnetic radiation conducting element becomes assembling process but add these, also cause whole cost to increase.

The purpose of this utility model is to provide a kind of computer housing that reduces electromagnetic radiation, is not needing to assemble separately under the situation of conductive pieces, can block the formed electromagnetism path in slit between computer housing and peripheral device simultaneously.

The purpose of this utility model is such realization, and a kind of computer housing promptly is provided, and it comprises: a metal shell, and it includes four the metal sides in upper and lower, left and right; One stationary installation is located in this metal shell, fixes a peripheral device; An and panel, be installed in the front end of this metal shell, which is provided with an opening, the front end of this peripheral device is positioned at this opening, make a user touch this peripheral device front end by this panel front side, wherein the forward edge of upper side edge that this metal shell is close with this opening or lower side is provided with several and this integrated metal feeler of metal shell, touches the upper side edge of this peripheral device or the electromagnetic radiation that lower side leaks with blocking-up.

The advantage of the utility model device is, it is provided with the electromagnetic radiation that side that several rubber-like metal feelers touch computing machine inside circumference device leaks with blocking-up, and the metal shell of these metal feelers and computing machine is one-body molded, so the utility model computer housing can effectively reduce electromagnetic radiation and reduce assembly cost.

Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail, wherein:

Fig. 1 is the stereographic map of computer housing of the present utility model;

Fig. 2 is the stereographic map of metal feeler shown in Figure 1;

Fig. 3 is a computer housing shown in Figure 1 cut-open view along tangent line 2-2.

See also Fig. 1.Fig. 1 is the external view of computer housing 11 of the present utility model.Computer housing 11 includes a metal shell 10, it includes four the metal sides in upper and lower, left and right, one stationary installation, 12 (not shown), be located in the metal shell 10, be used for fixing a CD player 16, one panel 14, be installed on the front end of metal shell 10, one opening 18 is arranged on it, several metal feelers 20, be located at the forward edge of the close upper side edge of metal shell 10 and opening 18 and one-body molded in linearly aligned mode, be used for touching the electromagnetic radiation that the upper side edge of CD player 16 leaks with blocking-up with metal shell 10.When CD player was fixed in the computer housing 11 by stationary installation 12, metal feeler 20 can contact with the upper side edge of CD player 16 shells, formed the electromagnetic radiation that the electromagnetic wave barrier leaks with blocking-up.

The front end of CD player 16 is positioned at opening 18, so the user can touch the front end of CD player 16 by the front side of panel 14, and see through that opening 18 is placed or the CD player of taking in discs.Stationary installation also can be used to fix a floppy drive or other peripheral device.And metal feeler 20 also can be located at the forward edge of the close lower side of metal shell 10 and opening 18, touches the electromagnetic radiation that the lower side of CD player 16 leaks with blocking-up.

See also Fig. 2.Fig. 2 is the external view of metal feeler 20 shown in Figure 1.Metal feeler 20 is directly to cut to form on the sheet metal that constitutes metal shell 10.Each metal feeler 20 has included a rubber-like arcuation projection 30, be used for flexibly contacting the electromagnetic radiation that CD player 16 leaks with blocking-up, one elastic arm 32 be used to provide the elasticity of metal feeler 20, and a barrier sheet 34 is located at the bottom side of arc convex 30.When arc convex 30 contacted with CD player 16, barrier sheet 34 can stop arc convex 30 to produce permanent strain because of overbend.

See also Fig. 3.Fig. 3 is computer housing 11 a shown in Figure 1 cut-open view along tangent line 2-2.In the time of in CD player 16 is contained in computer housing 11, arcuation projection 30 in the metal feeler 20 can be by the elastic force of elastic arm 32 and upper side edge 17 Elastic Contact of CD player 16, therefore these linearly aligned metal feelers 20 just form ELECTROMAGNETIC RADIATION SHIELDING, the electromagnetic radiation that leaks with blocking-up, and barrier sheet 34 can stop arc convex 30 to produce permanent strain because of overbend.

Claims

1. computer housing is characterized in that it comprises: a metal shell, and it includes four the metal sides in upper and lower, left and right; One stationary installation is located in the described metal shell, fixes a peripheral device; An and panel, be installed in the front end of described metal shell, which is provided with an opening, the front end of described peripheral device is positioned at this opening, make a user touch described peripheral device front end by described panel front side, the upper side edge that wherein said metal shell is close with described opening or the forward edge of lower side are provided with several and the integrated metal feeler of described metal shell, touch the upper side edge of described peripheral device or the electromagnetic radiation that lower side leaks with blocking-up.

2. computer housing as claimed in claim 1 is characterized in that, described several metal feelers are line style and arrange.

3. computer housing as claimed in claim 1 is characterized in that, described several metal feelers have included a rubber-like arc convex, flexibly contacts described peripheral device with the blocking-up electromagnetic radiation that leaks.

4. computer housing as claimed in claim 3, it is characterized in that, each metal feeler has included a barrier sheet, be located at the bottom side of described arc convex, when described arc convex touched described peripheral device, described barrier sheet can stop described arc convex to produce permanent strain because of overbend.

5. computer housing as claimed in claim 1 is characterized in that, described several metal feelers all directly cut on the sheet metal that constitutes described metal shell and form.