DE936639C - Shielding seal for high frequency devices - Google Patents
Shielding seal for high frequency devicesInfo
- Publication number
- DE936639C DE936639C DET4550A DET0004550A DE936639C DE 936639 C DE936639 C DE 936639C DE T4550 A DET4550 A DE T4550A DE T0004550 A DET0004550 A DE T0004550A DE 936639 C DE936639 C DE 936639C
- Authority
- DE
- Germany
- Prior art keywords
- high frequency
- shielding seal
- seal
- frequency devices
- metal
- 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
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0015—Gaskets or seals
Description
Es ist bekannt, daß Trennfugen in Abschirmkästen von Hochfrequenzgeräten um so leichter eine elektromagnetische Strahlung hindurchlassen, je kürzer die Wellenlänge ist. Es ist deshalb erforderlich, z. B. zwischen ein Abschirmgehäuse und den zugehörigen Deckel eine elastische, leitende Zwischenlage einzufügen. Es ist bekannt, zu diesem Zweck ein elastisches Drahtseil oder einen Schlauch aus Drahtgeflecht zu verwenden, der auf einem elastischen Rundmaterial od. dgl., z. B. aus Gummi, angebracht ist.It is known that parting lines in shielding boxes of high-frequency devices The shorter the wavelength, the easier it is for electromagnetic radiation to pass through is. It is therefore necessary, e.g. B. between a shielding housing and the associated Cover to insert an elastic, conductive intermediate layer. It is known about this Purpose of using an elastic wire rope or a hose made of wire mesh, the od on an elastic round material. Like., z. B. made of rubber is attached.
Es hat sich aber gezeigt, daß ein solches Drahtgeflecht bei Dezimeterwellen und erst recht bei Zentimeterwellen nicht genügend abdichtet, weil sich zwischen den einzelnen Drähten noch Zwischenräume befinden. Vollmaterial würde zwar genügend abschirmen, jedoch ist solches Material nicht genügend elastisch.But it has been shown that such a wire mesh with decimeter waves and especially with centimeter waves, it does not seal sufficiently because there is between there are still spaces between the individual wires. Full material would be enough shield, but such material is not sufficiently elastic.
Erfindungsgemäß wird vorgeschlagen, daß eine abschirmende Abdichtung aus einem elastischen Rundmaterial od. dgl., z. B. Gummi, besteht, um welches zuerst ein Metallfolienband gewickelt ist, über das dann ein Metallgeflecht gezogen ist. Eine Metallfolie allein wäre unzweckmäßig, weil sie zu leicht beschädigt wird. Verwendet man aber sowohl Metallfolie als auch Metallgeflecht, so wird die Folie gegen Beschädigungen geschützt. Beim Zusammenpressen legt sich die Folie dicht an das Metallgeflecht an .und verbindet die einzelnen Drähte elektrisch miteinander und schließt alle Lücken.According to the invention it is proposed that a shielding seal Od from an elastic round material. B. Rubber, consists of which one first a metal foil tape is wound, over which a metal braid is then drawn. A metal foil alone would be impractical because it is too easily damaged. Used But if you have both metal foil and metal mesh, the foil is protected against damage protected. When pressed together, the foil lies tightly against the metal mesh and connects the individual wires together electrically and closes all of them Gaps.
Die Zeichnung zeigt Ausführungsbeispiele der Erfindung.The drawing shows exemplary embodiments of the invention.
In Abb. i ist mit i das Rundmaterial aus Gummi bezeichnet, welches unter Umständen auch als Schlauch ausgebildet sein kann oder einen anderen als kreisförmigen Querschnitt haben kann. Um dieses Rundmaterial ist ein Metallfolienband 2 gewickelt und darüber ein Drahtgeflecht 3 gezogen.In Fig. I, i denotes the round material made of rubber, which may also be designed as a hose or something other than circular May have cross-section. A metal foil tape 2 is wrapped around this round material and over it a wire mesh 3 is drawn.
Abb. 2 zeigt eine Anwendung, z. B. an einer Verbindungsstelle einer koaxialen Leitung, von der nur die Außenwand dargestellt ist.Fig. 2 shows an application, e.g. B. at a junction of a coaxial line, of which only the outer wall is shown.
Die Dichtung D wird zwischen die Teile 4 und 5 gepreßt.The seal D is pressed between the parts 4 and 5.
Abb.3 zeigt die Anwendung der erfindungsgemäßen Dichtung auf ein Abschirmgehäuse. Der Rand des Gehäuses 7 ist mit einer Nut versehen, in welche die Dichtung D eingelegt wird. Der Deckel 6 besitzt einen vorspringenden Rand, der in die Nut eingreift und dadurch die Dichtung D zusammenpreßt.Fig.3 shows the application of the seal according to the invention to a shielding housing. The edge of the housing 7 is provided with a groove into which the seal D is inserted will. The cover 6 has a protruding edge which engages in the groove and thereby the seal D compresses.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET4550A DE936639C (en) | 1951-07-12 | 1951-07-12 | Shielding seal for high frequency devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET4550A DE936639C (en) | 1951-07-12 | 1951-07-12 | Shielding seal for high frequency devices |
Publications (1)
Publication Number | Publication Date |
---|---|
DE936639C true DE936639C (en) | 1955-12-15 |
Family
ID=7544671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET4550A Expired DE936639C (en) | 1951-07-12 | 1951-07-12 | Shielding seal for high frequency devices |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE936639C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3219747A (en) * | 1963-02-08 | 1965-11-23 | James H Mcadams | Shielding arrangement with wave guide below cutoff |
US3296356A (en) * | 1965-03-02 | 1967-01-03 | James H Mcadams | Radio frequency electromagnetic energy r. f. barrier |
DE1267729B (en) * | 1961-11-29 | 1968-05-09 | Technical Wire Products Inc | Electrical shielding |
US3969572A (en) * | 1975-03-05 | 1976-07-13 | Ncr Corporation | Electromagnetic interference shielding gasket for light-weight equipment enclosures |
FR2543602A1 (en) * | 1983-04-01 | 1984-10-05 | Frangolacci Roger | SHIELDED AND WATERPROOF TECHNICAL SHELTER |
EP0278567A2 (en) * | 1987-02-07 | 1988-08-17 | DST Deutsche System-Technik GmbH | Electromagnetic sealing arrangement |
FR2625863A1 (en) * | 1988-01-13 | 1989-07-13 | Caplatex Sa | METHOD FOR MANUFACTURING AN ELECTROMAGNETIC SHIELDING SEAL, MACHINE FOR CARRYING OUT SAID METHOD, AND JOINT OBTAINED USING SAID METHOD OR MACHINE |
DE3904217A1 (en) * | 1989-02-13 | 1990-08-16 | Miele & Cie | Baking and roasting oven |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE491448C (en) * | 1930-02-10 | Johannes Eints | Stuffing box packing | |
DE619218C (en) * | 1935-09-25 | Siemens Schuckertwserke Akt Ge | Seal, especially for containers containing liquids | |
DE644046C (en) * | 1933-09-13 | 1937-04-23 | Kurt Weber | High pressure sealing ring |
GB487463A (en) * | 1936-07-21 | 1938-06-21 | Bosch Robert | Improvements in obtaining electric contact between two metallic parts abutting against each other |
US2519850A (en) * | 1945-03-22 | 1950-08-22 | Jr Adrian A Pierson | Radio shielding sealing gasket |
-
1951
- 1951-07-12 DE DET4550A patent/DE936639C/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE491448C (en) * | 1930-02-10 | Johannes Eints | Stuffing box packing | |
DE619218C (en) * | 1935-09-25 | Siemens Schuckertwserke Akt Ge | Seal, especially for containers containing liquids | |
DE644046C (en) * | 1933-09-13 | 1937-04-23 | Kurt Weber | High pressure sealing ring |
GB487463A (en) * | 1936-07-21 | 1938-06-21 | Bosch Robert | Improvements in obtaining electric contact between two metallic parts abutting against each other |
US2519850A (en) * | 1945-03-22 | 1950-08-22 | Jr Adrian A Pierson | Radio shielding sealing gasket |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1267729B (en) * | 1961-11-29 | 1968-05-09 | Technical Wire Products Inc | Electrical shielding |
US3219747A (en) * | 1963-02-08 | 1965-11-23 | James H Mcadams | Shielding arrangement with wave guide below cutoff |
US3296356A (en) * | 1965-03-02 | 1967-01-03 | James H Mcadams | Radio frequency electromagnetic energy r. f. barrier |
US3969572A (en) * | 1975-03-05 | 1976-07-13 | Ncr Corporation | Electromagnetic interference shielding gasket for light-weight equipment enclosures |
FR2543602A1 (en) * | 1983-04-01 | 1984-10-05 | Frangolacci Roger | SHIELDED AND WATERPROOF TECHNICAL SHELTER |
EP0278567A2 (en) * | 1987-02-07 | 1988-08-17 | DST Deutsche System-Technik GmbH | Electromagnetic sealing arrangement |
EP0278567A3 (en) * | 1987-02-07 | 1989-10-04 | DST Deutsche System-Technik GmbH | Electromagnetic sealing arrangement |
FR2625863A1 (en) * | 1988-01-13 | 1989-07-13 | Caplatex Sa | METHOD FOR MANUFACTURING AN ELECTROMAGNETIC SHIELDING SEAL, MACHINE FOR CARRYING OUT SAID METHOD, AND JOINT OBTAINED USING SAID METHOD OR MACHINE |
EP0326441A1 (en) * | 1988-01-13 | 1989-08-02 | Caplatex Sa | Process for producing an electromagnetic shield fastening, machine for carrying out this process and fastening obtained with the aid of this process or this machine |
US5006666A (en) * | 1988-01-13 | 1991-04-09 | Rollin S. A. | Electromagnetic shielding gasket |
DE3904217A1 (en) * | 1989-02-13 | 1990-08-16 | Miele & Cie | Baking and roasting oven |
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