CN201590084U - Computer interface capable of preventing information leaked - Google Patents
Computer interface capable of preventing information leaked Download PDFInfo
- Publication number
- CN201590084U CN201590084U CN2010201370198U CN201020137019U CN201590084U CN 201590084 U CN201590084 U CN 201590084U CN 2010201370198 U CN2010201370198 U CN 2010201370198U CN 201020137019 U CN201020137019 U CN 201020137019U CN 201590084 U CN201590084 U CN 201590084U
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- Prior art keywords
- computer interface
- interface
- metal shell
- signal lead
- computer
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- Expired - Fee Related
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Abstract
The utility model discloses a computer interface capable of preventing information leaked, belonging to the computer interface, comprising a computer interface, an interface panel, wherein the computer interface is mounted on the interface panel and a feed-through capacitor filter is connected with a signal lead in the computer interface and the signal lead is shielded by an external metal shell and embedding material is poured into the metal shell to integrate the feed-through capacitor filter and the metal shell; the computer interface is mounted on the interface panel and a conduction gasket is added at the overlap part of the computer interface and the interface panel and a shielding bin is mounted outside the computer interface and the conduction gasket is added at the overlap part of the shielding bin and the interface panel. Compared with the prior technology, the computer interface capable of preventing information leaked is combined with the shielding technology by the filtering, so as to thoroughly solve the information leakage problem of the computer interface.
Description
Technical field
The utility model relates to a kind of computer interface, specifically a kind of computer interface of Tempest.
Background technology
Common computer interface is in the process of information transmission, and many Useful Informations cause the leakage of computer-internal information easily along with signal wire propagates into space outerpace with form of electromagnetic wave.So the Tempest computing machine will guarantee its function of keeping secret, just must solve the leakage of information problem of interface.Prevent that the computer-internal interference source from signal wire conduction emission, stopping that external interference impacts the computer-internal miscellaneous equipment.Thereby reach the purpose of electromagnetic compatibility.
Originally the computer interface Tempest is handled the general dual mode that adopts, and the one, docking port carries out filtering, and the 2nd, docking port shields.
Filtering principle is to adopt low-pass filter will be higher than the clutter filtering of useful signal frequency, but some low frequency clutter still can leak into outside the body by interface signal line, simultaneously because shielding is not in place, a lot of electromagnetic waves by the slot leakage between interface and cabinet outside body.Shield technology is to adopt the metal material shell that signal in the body is isolated from the outside, and most of signal can shield, but also some electromagnetic wave leaks into outside the body by the signal wire coupling.
Above dual mode all can not farthest reduce electromagnetic leakage.
The utility model content
Technical assignment of the present utility model is at above weak point, provides a kind of and combines with shield technology by filtering, thoroughly solves the computer interface of a kind of Tempest of leakage of information.
The technical scheme that its technical matters that solves the utility model adopts is: comprise computer interface, interface panel, computer interface is installed on the interface panel; All connect the feedthrough capacitor wave filter on the signal lead in the computer interface, signal lead is by outside metal shell shielding, and the inner Embedding Material that injects of metal shell is made of one feedthrough capacitor wave filter and metal shell; Computer interface is installed on the interface panel, and computer interface and interface panel lap-joint add conductive gasket; The shielding storehouse is installed in the computer interface outside, and shielding storehouse and interface panel joint add conductive gasket.
Signal lead passes metal shell, the screen layer 360 degree overlap joints of metal shell and signal lead.
Feedthrough capacitor wave filter middle part is provided with metal partion (metp), and the two ends of feedthrough capacitor wave filter directly are connected with signal lead.
Embedding Material is the resin Embedding Material.
Computer interface and shielding storehouse plating nickel on surface.
The computer interface of a kind of Tempest of the present utility model is compared with prior art, has the following advantages:
1, all connect the feedthrough capacitor wave filter on the signal lead, by the feedthrough capacitor wave filter with the high frequency clutter filtering of carrying on the signal wire; Can effectively suppress the influence that undesired signal and minimizing equipment cause miscellaneous equipment by conduction, thereby reach the purpose of anti-electromagnetic interference (EMI);
2, the influence of the interior electromagnetic wave of body to computer interface weakened in the outside shielding storehouse that increases of computer interface;
3, shielding storehouse and interface panel joint add conductive gasket, have strengthened shield effectiveness;
4, the feedthrough capacitor wave filter is isolated internal and external interference by the intermetallic metal dividing plate;
5, the two ends of feedthrough capacitor wave filter directly are connected the signal cross-talk of having avoided long signal lead to cause with signal lead;
6, Nickel Plating Treatment is done on computer interface and surface, shielding storehouse, prevents burning, adapts to rugged surroundings, and makes appearance looks elegant;
7, have reasonable in design, simple in structure, be easy to characteristics such as processing, easy to use, Tempest, thereby, have good value for applications.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing 1 is a computer interface inner structure synoptic diagram;
Accompanying drawing 2 is the computer interface scheme of installation;
Accompanying drawing 3 is a computer interface exterior shield chamber structure synoptic diagram.
Among the figure: 1, computer interface, 2, signal lead, 3, metal shell, 4, the feedthrough capacitor wave filter, 5, Embedding Material, 6, interface panel, 7, conductive gasket, 8, the shielding storehouse, 9, metal partion (metp).
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
The computer interface of a kind of Tempest of the present utility model, its structure comprise computer interface 1, interface panel 6, and computer interface 1 is installed on the interface panel 6; All connect feedthrough capacitor wave filter 4 on the signal lead 2 in the computer interface 1, signal lead 2 is by 3 shieldings of outside metal shell, and the metal shell 3 inner Embedding Materials 5 that inject are made of one feedthrough capacitor wave filter 4 and metal shell 3; Computer interface 1 is installed on the interface panel 6, and computer interface 1 adds conductive gasket 7 with interface panel 6 lap-joints; Shielding storehouse 8 is installed in computer interface 1 outside, and shielding storehouse 8 adds conductive gasket 7 with interface panel 6 joints.
Signal lead 2 passes metal shell 3, and metal shell 3 overlaps with screen layer 360 degree of signal lead 2.
Feedthrough capacitor wave filter 4 middle parts are provided with metal partion (metp) 9, and the two ends of feedthrough capacitor wave filter 4 directly are connected with signal lead 2.
Embedding Material 5 is the resin Embedding Material.
Computer interface 1 and shielding storehouse 8 plating nickel on surface.
The external computer interface 1 of cabinet mainly contains parallel port, serial ports, USB interface, network interface, keyboard mouth, mouse mouth, VGA interface.Any filter effect that the capacitor filter of signal lead 2 arranged all can be subjected to the restriction of signal lead 2 inductance, when ultrahigh frequency or higher frequency range will obtain better filter effect, when particularly the protection mask body is not penetrated, must use feedthrough capacitor wave filter 4.
During use,, select the value of the through condenser wave filter 4 of computer interfaces 1 such as serial ports, parallel port, network interface, USB mouth according to the cutoff frequency and the actual tests data of signal.
Its processing and fabricating of the computer interface of a kind of Tempest of the present utility model is very simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (5)
1. the computer interface of a Tempest, comprise computer interface, interface panel, computer interface is installed on the interface panel, it is characterized in that all having connect the feedthrough capacitor wave filter on the signal lead in the computer interface, signal lead is by outside metal shell shielding, and the inner Embedding Material that injects of metal shell is made of one feedthrough capacitor wave filter and metal shell; Computer interface is installed on the interface panel, and computer interface and interface panel lap-joint add conductive gasket; The shielding storehouse is installed in the computer interface outside, and shielding storehouse and interface panel joint add conductive gasket.
2. the computer interface of a kind of Tempest according to claim 1 is characterized in that signal lead passes metal shell, the screen layer 360 degree overlap joints of metal shell and signal lead.
3. the computer interface of a kind of Tempest according to claim 1 is characterized in that feedthrough capacitor wave filter middle part is provided with metal partion (metp), and the two ends of feedthrough capacitor wave filter directly are connected with signal lead.
4. the computer interface of a kind of Tempest according to claim 1 is characterized in that Embedding Material is the resin Embedding Material.
5. the computer interface of a kind of Tempest according to claim 1 is characterized in that computer interface and shielding storehouse plating nickel on surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201370198U CN201590084U (en) | 2010-03-22 | 2010-03-22 | Computer interface capable of preventing information leaked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201370198U CN201590084U (en) | 2010-03-22 | 2010-03-22 | Computer interface capable of preventing information leaked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201590084U true CN201590084U (en) | 2010-09-22 |
Family
ID=42749872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201370198U Expired - Fee Related CN201590084U (en) | 2010-03-22 | 2010-03-22 | Computer interface capable of preventing information leaked |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201590084U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406457A (en) * | 2016-08-27 | 2017-02-15 | 张应刚 | Electromagnetic interference device for preventing electromagnetic information leakage and implementation method |
| CN109068559A (en) * | 2018-10-17 | 2018-12-21 | 南京沃福曼医疗科技有限公司 | A method of reducing the radiation of OCT equipment DVI video interface |
| CN111670519A (en) * | 2018-02-01 | 2020-09-15 | 莱尼电缆有限公司 | Shielding of twisted wire pairs in electrical connectors by conductive potting compound |
| EP3235357B1 (en) * | 2014-12-19 | 2023-06-07 | Hans-Erik Johansson I Hagstad Aktiebolag | Feed-through |
-
2010
- 2010-03-22 CN CN2010201370198U patent/CN201590084U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3235357B1 (en) * | 2014-12-19 | 2023-06-07 | Hans-Erik Johansson I Hagstad Aktiebolag | Feed-through |
| CN106406457A (en) * | 2016-08-27 | 2017-02-15 | 张应刚 | Electromagnetic interference device for preventing electromagnetic information leakage and implementation method |
| CN111670519A (en) * | 2018-02-01 | 2020-09-15 | 莱尼电缆有限公司 | Shielding of twisted wire pairs in electrical connectors by conductive potting compound |
| CN111670519B (en) * | 2018-02-01 | 2022-03-22 | 莱尼电缆有限公司 | Shielding of twisted wire pairs in electrical connectors by conductive potting compound |
| US11329434B2 (en) | 2018-02-01 | 2022-05-10 | Bizlink Industry Germany Gmbh | Shielding of twisted pairs in twisted-pair electrical connectors by means of a conductive potting compound |
| CN109068559A (en) * | 2018-10-17 | 2018-12-21 | 南京沃福曼医疗科技有限公司 | A method of reducing the radiation of OCT equipment DVI video interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20130322 |