CN2531427Y - Electromagnetic shielding device of computer case - Google Patents
Electromagnetic shielding device of computer case Download PDFInfo
- Publication number
- CN2531427Y CN2531427Y CN 01268374 CN01268374U CN2531427Y CN 2531427 Y CN2531427 Y CN 2531427Y CN 01268374 CN01268374 CN 01268374 CN 01268374 U CN01268374 U CN 01268374U CN 2531427 Y CN2531427 Y CN 2531427Y
- Authority
- CN
- China
- Prior art keywords
- edge
- cabinet
- lag
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Discloses is an electromagnetic shielding device of computer case, comprising two case lateral plates which are connected with each other. The utility model is characterized in that: at the connection edge of the two lateral plates, the connection edge of one lateral plate is extended and bent to be provided with a U type groove along the edge and the connection edge of the other lateral plate is extended to be provided with a bending convex edge which is inserted into the U type groove. The U type groove connection structure of the utility model can make the case obtain a good electromagnetic shielding performance.
Description
[technical field]
The utility model relates to a kind of electromagnetic screen of computer housing.
[background technology]
The continuous rising of computer speed, the transmission speed of the digital signal of computing machine associated components is more and more faster, and electromagnetic radiation intensity to external world is also increasing simultaneously.Since the lifting of speed, the increase of signal frequency, and the wavelength of signal is corresponding to be reduced, so just require more and more littler to the slit of shielding case.Mainly be divided into the side cover-opening structure in the existing casing structure or go up cover-opening structure, have a lot of places when cabinet is shut and have potential slit, cause electromagnetic leakage.Particularly at frequency greater than 1GHz after, the shielding problem of conventional cabinet is more outstanding.
To the solution of the contact problems of above two kinds of cabinets, that adopts at present mainly contains two kinds of schemes: one is to increase contact pop-off 1 between cabinet two coupling parts to increase the two-part contact of cabinet, as shown in Figure 2.The shortcoming of this scheme is the mould complexity, increases processing capacity, because two parts of cabinet contact pop-off is that cabinet itself cuts out, exists elasticity to be not easy the problem of assembling too greatly simultaneously.And if the shielding properties of pop-off cabinet when being not easy to guarantee to produce in batches less.
Another program is to adopt conducting adhesive cloth, and this scheme can make system cost increase considerably.As shown in Figure 3, adopt conducting adhesive cloth 2 to increase the two-part contact of cabinets, the shortcoming of this scheme is the complexity of processing and the increase of cost, and common cabinet cost can adopt the length of conducting adhesive cloth and occurs increasing largely along with cabinet.
[utility model content]
The purpose of this utility model is to provide a kind of electromagnetic screen of computer housing, reaches higher effectiveness with lower production cost, particularly has the electromagnetic effectiveness that frequency is higher than 1GHz, and is convenient to processing.
The utility model provides a kind of electromagnetic screen of computer housing, comprise two interconnective cabinet side boards, it is characterized in that: on this two side plates fillet, wherein the fillet of side plate is provided with U-lag along edge extension bending, the fillet of another side plate extends the chimb that is provided with bending along the edge, the chimb of this bending inserts in this U-lag.
The electromagnetic screen of described computer housing is characterized in that: the edge perk of this chimb and this U-lag inwall touch.
The electromagnetic screen of computer housing of the present utility model can increase the absorption reflection of electromagnetic wave between U-lag, thereby prevents its leakage, obtains our needed shielding properties, can solve the electromagnetic-wave leakage problem in the slit of cabinet contact portion,
The utility model has solved present desktop computer case for the shielding problem that is higher than the frequency more than the 1GHz, not only guarantees the shielding properties of cabinet, is convenient to simultaneously install, and is convenient to produce, and cost is very low simultaneously.The utility model makes the dismounting of cabinet more convenient owing to avoided the contact problems of two parts side plates.
[description of drawings]
Fig. 1 is the structural representation of preferred embodiment of the present utility model.
Fig. 2 is the structural representation of the electromagnetic screen scheme of existing a kind of cabinet.
Fig. 3 is the structural representation of the electromagnetic screen scheme of existing another kind of cabinet.
[embodiment]
As shown in Figure 1, the electromagnetic screen of a kind of computer housing of the present utility model, comprise two interconnective cabinet side boards 10,20, on this two side plates fillet, wherein the fillet of side plate 10 is provided with U-lag 11 along edge extension bending, the fillet of another side plate 20 extends the chimb 21 that is provided with bending along the edge, the chimb 21 of this bending inserts in this U-lag 11.But the edge perk of this chimb 21 and this U-lag 11 inwalls touch (figure does not show).
This U-lag structure of the present utility model can increase the absorption reflection of electromagnetic wave between groove, thereby prevents its leakage.Install more conveniently simultaneously, cost is relatively low.Adjust relative dimensions, can make HFS obtain good shielding properties.If, then can make cabinet obtain good capability of electromagnetic shielding in a large amount of employings in the coupling part of computer housing this U-lag syndeton of the present utility model.Experimental result shows that to the 10GHz frequency range, shielding properties can reach 15dB to 20dB at 1GHz.
Claims (2)
1, a kind of electromagnetic screen of computer housing, comprise two interconnective cabinet side boards, it is characterized in that: on this two side plates fillet, wherein the fillet of side plate is provided with U-lag along edge extension bending, the fillet of another side plate extends the chimb that is provided with bending along the edge, the chimb of this bending inserts in this U-lag.
2, the electromagnetic screen of computer housing according to claim 1 is characterized in that: the edge perk of this chimb and this U-lag inwall touch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01268374 CN2531427Y (en) | 2001-10-22 | 2001-10-22 | Electromagnetic shielding device of computer case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01268374 CN2531427Y (en) | 2001-10-22 | 2001-10-22 | Electromagnetic shielding device of computer case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2531427Y true CN2531427Y (en) | 2003-01-15 |
Family
ID=33674570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01268374 Expired - Lifetime CN2531427Y (en) | 2001-10-22 | 2001-10-22 | Electromagnetic shielding device of computer case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2531427Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665376A (en) * | 2019-03-07 | 2020-09-15 | 湖南省海狮电器有限公司 | Anti-interference shielding case for monitoring power transmission line |
-
2001
- 2001-10-22 CN CN 01268374 patent/CN2531427Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665376A (en) * | 2019-03-07 | 2020-09-15 | 湖南省海狮电器有限公司 | Anti-interference shielding case for monitoring power transmission line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200969449Y (en) | Input/output interface shading device | |
| CN2531427Y (en) | Electromagnetic shielding device of computer case | |
| CN105007711A (en) | Ruggedized computer display screen electromagnetic compatibility processing method | |
| CN2935732Y (en) | Cabinet baffle with anti-electromagnetic radiation function | |
| CN2722580Y (en) | Electromagnetic shielding device | |
| CN2356459Y (en) | Household electric appliance casing with electromagnetic shielding function | |
| CN209845640U (en) | Electromagnetic shielding device for reinforcing notebook computer display screen | |
| CN209842522U (en) | Terminal device based on electromagnetic compatibility design | |
| CN201708273U (en) | Component of electric connector | |
| CN2724075Y (en) | Plate card electromagnetic shield shrapnel | |
| CN2462454Y (en) | Integratedly set I/O interface board | |
| CN216957358U (en) | Integrated shielding structure of reinforced liquid crystal display | |
| CN2514392Y (en) | Electromagnetic shield for computer casing | |
| CN218499511U (en) | Structure for reducing EMI radiation and electronic equipment | |
| CN207410637U (en) | A kind of back shroud of easy access | |
| CN2509631Y (en) | Electronic apparatus of internal memory expanded groove cover with electromagnetic wave resisting purpose | |
| CN2577340Y (en) | Electromagnetic radiation shielding apparatus of multipurpose power source for computer | |
| CN218934816U (en) | Shell structure of intelligent fan unit | |
| CN220368977U (en) | Signal shielding framework | |
| CN208156634U (en) | A kind of LCD display module and touch screen and terminal using the mould group | |
| CN2526980Y (en) | Zone electromagnetic interference preventing device for integrated circuit | |
| CN203243633U (en) | Electronic device | |
| CN2629097Y (en) | Computer casing | |
| CN2603536Y (en) | Grounding device for built-in board and card interface component | |
| CN201332572Y (en) | EMI shrapnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111022 Granted publication date: 20030115 |