DE936639C - Shielding seal for high frequency devices - Google Patents

Shielding seal for high frequency devices

Info

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
Application number
DET4550A
Other languages
German (de)
Inventor
Gerhard Dr Bruehl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken AG
Original Assignee
Telefunken AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telefunken AG filed Critical Telefunken AG
Priority to DET4550A priority Critical patent/DE936639C/en
Application granted granted Critical
Publication of DE936639C publication Critical patent/DE936639C/en
Expired legal-status Critical Current

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)

PATENTANSPRUCH: Abschirmende Abdichtung für Trennfugen von Metallgehäusen der Hochfrequenztechnik, insbesondere der Dezimetertechnik, unter Verwendung eines Metallgeflechtes, das auf einem elastischen Rundmaterial od. dgl., z. B. aus Gummi, angebracht ist, dadurch gekennzeichnet, daß um das elastische Rundmaterial zuerst ein Metallfolienband gewickelt ist, über das dann das Metallgeflecht gezogen ist. Angezogene Druckschriften: Deutsche Patentschriften Nr. 6q.046, 491 448, 619 218; britische Patentschrift Nr. 487 463; USA.-Patentschrift Nr. 2 5 i9 85o. PATENT CLAIM: Shielding seal for separating joints of metal housings of high frequency technology, in particular the decimeter technology, using a metal mesh that is od on an elastic round material. B. made of rubber, characterized in that a metal foil tape is first wrapped around the elastic round material, over which the metal mesh is then pulled. Cited publications: German Patent Specifications No. 6q.046, 491 448, 619 218; British Patent No. 487,463; USA. Pat. No. 2 5 i9 85o.
DET4550A 1951-07-12 1951-07-12 Shielding seal for high frequency devices Expired DE936639C (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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