DE2840846A1 - Paint or enamel coating for computer equipment - protects against damage by electrostatic change by having electrical resistance of few hundred kilo ohms - Google Patents
Paint or enamel coating for computer equipment - protects against damage by electrostatic change by having electrical resistance of few hundred kilo ohmsInfo
- Publication number
- DE2840846A1 DE2840846A1 DE19782840846 DE2840846A DE2840846A1 DE 2840846 A1 DE2840846 A1 DE 2840846A1 DE 19782840846 DE19782840846 DE 19782840846 DE 2840846 A DE2840846 A DE 2840846A DE 2840846 A1 DE2840846 A1 DE 2840846A1
- Authority
- DE
- Germany
- Prior art keywords
- few hundred
- paint
- coating
- enamel coating
- electrical resistance
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
Description
Computerschutzlack zur Verhütung von elektrostatischenComputer protective varnish to prevent electrostatic effects
Hochspannungsentladungen in kurzen Zeiträumen Das physikalische Prinzip dieses Verfahrens betrifft einen leitfähigen, möglichst widerstandsfähigen (gegenüber mechanischer Beanspruchung) Schutzlack, der über sämtliche Abdeckteile (Gehusehauben etc) gesprüht wird, unter denen sich elektronische Elemente befinden, die gegenüber elektrostatischen Entladungen, insbesondere durch Personen, die mit diesen Teilen in Berührung kommen, emfindsam sind. Das trifft besonde auf Computer zu.High voltage discharges in short periods of time The physical principle This method concerns a conductive, as resistant as possible (to mechanical stress) Protective varnish that covers all cover parts (housing hoods etc), under which there are electronic elements, the opposite Electrostatic discharges, especially from people who work with these parts come into contact, are sensitive. This is especially true of computers.
Der Schutzlack dient dem Zweck, die spontane Entladung an Gehäuseteilen etc. zwar nicht zu verhindern, aber über einen wesentlich längeren Zeitraum zu verteilen, so dass die Spannung sich langsamer und mit wesentlich geringerer Stromstärke abbaut.The purpose of the protective lacquer is to prevent spontaneous discharge on parts of the housing etc. not to be prevented, but to be spread over a much longer period of time, so that the voltage decreases more slowly and with a significantly lower current intensity.
Es ist bekannt, dass zu diesem Zweck bisher besondere Strom-Ableitkabel an das Gehäuse montiert wurden, die zwar sicherstellen, dass das jeweilige Gehäuse sich nicht aufladen kann, aber keineswegs verhinderns dass bereits geladene Teile sich über das Gehauseentladen und damit z.B. ein gerade laufendes Rechnerprogramm zum Stillstand bringen durch Pehlerrechnungen. Die bisherige Technik verhindert also keineswegs die Gefährdung der Elektronik, besonder bei MOS-Technologie.It is known that special current discharge cables have so far been used for this purpose were mounted on the housing, which ensures that the respective housing cannot charge, but in no way prevent parts that are already charged via the housing and thus e.g. a currently running computer program bring to a standstill by mistake calculations. The previous technology prevented So by no means the endangerment of the electronics, especially with MOS technology.
Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass ein leifähiger Speziallack aufgetragen wird, der in seiner Zusammensetzung keineswegs kritisch ist. Seine Leitfahigkeit liegt im Bereich von einigen hundert Kilo-Ohm und bildet daher zusammen mit der Kapazität z.B. von elektrostatisch aufgeladenen Personen ein RC-Glied, dessen Zeitkonstante wesentlich grösser ist als ohne diesen Schutzlack. Zugleich bildet der Lack einen Spannungsteiler mit dem Gehuse, sodass nur geringe Spannungen und Ströme über das Gehäuse abfliessen, die aber ausreichen, die betreffende Person restlos zu entladen.This object is achieved according to the invention in that a conductive Special paint is applied, which is by no means critical in its composition is. Its conductivity is in the range of a few hundred kilo-ohms and forms therefore together with the capacity of electrostatically charged people, for example an RC element, the time constant of which is significantly greater than without this protective varnish. At the same time, the lacquer forms a voltage divider with the housing, so that only slight Voltages and currents flow through the housing, but they are sufficient for the relevant Person to be completely discharged.
Dadurch wird die Gefährdung elektronischer, elektrostatisch empfindsamer Geräte wirkungsvoll verhindert.This makes the electronic and electrostatic hazard more sensitive Devices effectively prevented.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782840846 DE2840846A1 (en) | 1978-09-20 | 1978-09-20 | Paint or enamel coating for computer equipment - protects against damage by electrostatic change by having electrical resistance of few hundred kilo ohms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782840846 DE2840846A1 (en) | 1978-09-20 | 1978-09-20 | Paint or enamel coating for computer equipment - protects against damage by electrostatic change by having electrical resistance of few hundred kilo ohms |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2840846A1 true DE2840846A1 (en) | 1980-04-03 |
Family
ID=6049909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782840846 Withdrawn DE2840846A1 (en) | 1978-09-20 | 1978-09-20 | Paint or enamel coating for computer equipment - protects against damage by electrostatic change by having electrical resistance of few hundred kilo ohms |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2840846A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1302691C (en) * | 1999-11-26 | 2007-02-28 | 索尼公司 | Electronic apparatus with metal part containing cabinet |
-
1978
- 1978-09-20 DE DE19782840846 patent/DE2840846A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1302691C (en) * | 1999-11-26 | 2007-02-28 | 索尼公司 | Electronic apparatus with metal part containing cabinet |
CN1330217C (en) * | 1999-11-26 | 2007-08-01 | 索尼公司 | Electronic apparatus with metal part containing cabinet |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |