DE3843130A1 - Surface contact-making device for RF doors - Google Patents

Surface contact-making device for RF doors

Info

Publication number
DE3843130A1
DE3843130A1 DE19883843130 DE3843130A DE3843130A1 DE 3843130 A1 DE3843130 A1 DE 3843130A1 DE 19883843130 DE19883843130 DE 19883843130 DE 3843130 A DE3843130 A DE 3843130A DE 3843130 A1 DE3843130 A1 DE 3843130A1
Authority
DE
Germany
Prior art keywords
door
screen wall
contact plate
contact
pressure
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Withdrawn
Application number
DE19883843130
Other languages
German (de)
Inventor
Joachim Nedtwig
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.)
Airbus Defence and Space GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19883843130 priority Critical patent/DE3843130A1/en
Publication of DE3843130A1 publication Critical patent/DE3843130A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007Casings
    • H05K9/0015Gaskets or seals
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/18Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against harmful radiation

Abstract

The invention relates to a door for RF-tight rooms. In order to produce a contact which is radio-frequency-tight on all sides between a door leaf and a screening wall, a sliding door is used which can be lowered into the door opening. The door leaf edge consists of a contact metal sheet which is stiff to bend and rests on the screening wall when the door is closed. When the door is in the closed position, the contact metal sheet is mechanically or pneumatically pressed against the screening wall by means of a contact-pressure device.

Description

Die Erfindung betrifft eine Tür für hochfrequenzdicht ab­ geschirmte Räume nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a door for high frequency tight shielded rooms according to the preamble of the claim 1.

HF-dichte Türen sind Bauelemente für Raumabschirmungen, die die Schirmwirkung von Raumabschirmungen wesentlich be­ einflussen. Für die Schirmwirkung im unteren Frequenzbe­ reich 0f 30 MHz ist die magnetische Feldstärke zu be­ rücksichtigen, für Frequenzen ab ca. 30 MHz die elektri­ sche oder die magnetische Feldstärke.HF-tight doors are components for room shields that significantly influence the shielding effect of room shields. For the shielding effect in the lower frequency range 0 f 30 MHz, the magnetic field strength must be taken into account, for frequencies from approx. 30 MHz the electrical or magnetic field strength.

Bei Türen ist es äußerst schwierig, insbesondere an der Scharnierseite einen hochfrequenzdichten Kontakt zwischen dem Schließelement und der Wandung des Raumes, d.h. zwi­ schen Türblatt und Türzarge herzustellen. Die hierfür be­ stimmten Kontaktelemente bestehen im allgemeinen aus Fe­ dern, die zwischen Zarge und Blatt eingezogen sind. Die Kontaktelemente können z.B. als sogenannte Messerkontakte oder als selbsthaftende Federstreifen, die gegen die Zar­ gen anliegen, ausgebildet sein. Diese Kontaktelemente ha­ ben jedoch den Nachteil, daß sie bei starker Beanspruchung verhältnismäßig schnell verschleißen oder beschädigt wer­ den.It is extremely difficult with doors, especially on the Hinge side a high frequency tight contact between  the closing element and the wall of the room, i.e. between the door leaf and door frame. The be certain contact elements generally consist of Fe those who are drawn in between the frame and the leaf. The Contact elements can e.g. as so-called knife contacts or as self-adhesive feather strips against the tsar gene concern, be trained. These contact elements ha ben, however, the disadvantage that they are under heavy use wear out or damage relatively quickly the.

Der Erfindung liegt die Aufgabe zugrunde, eine Tür mit hochfrequenzdichter Kontaktierung zwischen Türblatt und Schirmwand anzugeben, deren Kontaktelement eine hohe Schirmdämpfung besitzt, möglichst verschleißfrei ist und kostengünstig herstellbar ist.The invention has for its object a door high frequency tight contact between door leaf and Specify screen wall, the contact element a high Has shielding attenuation, is as wear-free as possible and is inexpensive to manufacture.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale gelöst. Zweckmäßige Ausgestaltungen und/oder Weiterbildungen sind den Unteran­ sprüchen zu entnehmen.This task is carried out in the characterizing part of the Features specified claim 1 solved. Appropriate Refinements and / or further training are the Unteran sayings.

Die Erfindung wird im folgenden anhand von Ausführungsbei­ spielen näher erläutert unter Bezugnahme auf schematische Zeichnungen.The invention is described below with reference to exemplary embodiments play explained with reference to schematic drawings.

In Fig. 1 ist anhand einer Schnittzeichnung das Prinzip der erfindungsgemäßen Abdichtung einer Tür für HF-dichte Räume dargestellt. Als Tür wird vorteilhafterweise eine in die Türöffnung versenkbare Schiebetür verwendet, die an der Innenseite des geschirmten Raumes angebracht ist, so daß die im geschirmten Raum arbeitende Person die Tür von innen betätigen kann. Das Türblatt besteht aus einem mas­ siven Teil aus z.B. Stahlblech, das in die Türöffnung ein­ schiebbar ist. Die Abmessungen dieses Teils des Türblattes sind entsprechend der zu verschließenden Türöffnung zu wählen. Der Türblattrand, der z.B. aus einem an das Tür­ blatt angeschweißten oder angelöteten, biegesteifen Blech 1 aus beispielsweise Aluminium, Kupfer oder Stahl besteht, liegt bei geschlossener Tür auf der Schirmwand 3 im Innern des geschirmten Raumes an (Fig. 1). Das Kontaktblech 1 be­ sitzt eine Dicke von etwa 0,1-1mm und eine Breite b von 5-10 cm. Damit ein allseitiger, HF-dichter Abschluß zwischen Tür und Schirmwand entsteht, sind um die Türöffnung an der Schirmwand Anpreßhebel oder Anpreßklappen installiert, die bei Türschließung das Kontaktblech 1 des Türblattes an die Schirmwand mechanisch oder pneumatisch pressen. Die Kon­ taktflächen 2 der Schirmwand und der Anpreßvorrichtung, die bei geschlossener Tür am Kontaktblech 1 anliegen, wer­ den durch Sandstrahlen oder durch Flammsprühen mit Zn, Sn, Ag oder Ni aufgerauht.In Fig. 1, the principle of sealing a door according to the invention for HF-tight rooms is shown using a sectional drawing. A door that can be lowered into the door opening is advantageously used as the door and is attached to the inside of the shielded room, so that the person working in the shielded room can operate the door from the inside. The door leaf consists of a massive part made of sheet steel, for example, which can be pushed into the door opening. The dimensions of this part of the door leaf must be selected according to the door opening to be closed. The edge of the door leaf, which consists, for example, of a sheet welded or soldered to the door, a rigid sheet 1 made of, for example, aluminum, copper or steel, lies on the screen wall 3 inside the screened room when the door is closed ( FIG. 1). The contact sheet 1 be a thickness of about 0.1-1mm and a width b of 5-10 cm. So that an all-round, HF-tight seal is created between the door and the screen wall, pressure levers or pressure flaps are installed around the door opening on the screen wall, which press the contact plate 1 of the door leaf against the screen wall mechanically or pneumatically when the door closes. The con tact surfaces 2 of the screen wall and the pressing device, which rest against the contact plate 1 when the door is closed, who is roughened by sandblasting or by flame spraying with Zn, Sn, Ag or Ni.

In einem weiteren Ausführungsbeispiel gemäß Fig. 2 ist die Schiebetür derart installiert, daß das Kontaktblech 1 an der Außenwand des geschirmten Raumes anliegt. An das Tür­ blatt 1 a in der Rauminnenseite sind Anpreßhebel 4 a und pneumatisch oder hydraulisch gesteuerte Anpreßgestänge 5 angebracht. Das Anpreßgestänge 5 drückt über Gelenkarme, die in der Türblattmitte am Türblatt angebracht sind, die Anpreßhebel 4 a auf die Schirmwand 3 und zieht insgesamt die Schiebetür in den Türrahmen. Es werden mehrere Anpreß­ gestänge 5 und Anpreßhebel 4 a über das Türblatt verteilt angeordnet, so daß das außen an der Schirmwand 3 anlie­ gende Kontaktblech 5 flächig an die Schirmwand 3 angepreßt wird. Die aneinandergepreßten Flächen von Kontaktblech 1 bzw. Anpreßhebel 4 a und Schirmwand 3 sind entweder wie im ersten Ausführungsbeispiel aufgerauht oder es sind han­ delsübliche HF-Dichtungen zwischen Kontaktblech 1 bzw. Anpreßhebel 4 a und Schirmwand 3 eingebracht.In a further exemplary embodiment according to FIG. 2, the sliding door is installed in such a way that the contact plate 1 rests on the outer wall of the shielded room. On the door leaf 1 a in the interior of the pressure lever 4 a and pneumatically or hydraulically controlled pressure linkage 5 are attached. The pressure linkage 5 presses via articulated arms that are attached to the door leaf in the middle of the door leaf, the pressure lever 4 a on the screen wall 3 and pulls the sliding door overall into the door frame. There are several pressure rods 5 and pressure lever 4 a distributed over the door leaf, so that the outside on the screen wall 3 lying contact plate 5 is pressed flat against the screen wall 3 . The pressed surfaces of contact plate 1 or pressure lever 4 a and screen wall 3 are either roughened as in the first embodiment or there are conventional HF seals between contact plate 1 or pressure lever 4 a and screen wall 3 .

Bei einem derartigen Schließ- und HF-Dichtungsmechanismus ist bei geschlossener HF-Tür ein dichter HF-Abschluß von außen und von innen gewährleistet.With such a closing and HF sealing mechanism When the RF door is closed, a tight RF termination of guaranteed outside and inside.

Die Erfindung ist nicht auf das beschriebene Ausführungs­ beispiel beschränkt, sondern die Anpreßvorrichtung kann auch aus einem pneumatisch steuerbaren Schlauch bestehen, der bei geschlossener Tür das Kontaktblech allseitig auf die Schirmwand drückt.The invention is not based on the embodiment described example limited, but the pressing device can also consist of a pneumatically controllable hose, the contact plate on all sides when the door is closed presses the screen wall.

Claims (4)

1. Tür für hochfrequenzdicht abgeschirmte Räume, insbe­ sondere eine in die Türöffnung versenkbare Schiebetüre, dadurch gekennzeichnet,
  • - daß der Türblattrand aus einem biegesteifen Kon­ taktblech (1) besteht,
  • - daß das Kontaktblech (1) bei Schließstellung der Tür auf der Schirmwand (3) aufliegt, und
  • - daß eine entsprechende Anpreßvorrichtung (4, 4 a, 5) das Kontaktblech (1) gegen die Schirmwand (3) preßt (Fig. 1 und 2).
1. Door for high-frequency-tightly shielded rooms, in particular a sliding door that can be retracted into the door opening, characterized in that
  • - That the edge of the door leaf consists of a rigid Kon contact sheet ( 1 )
  • - That the contact plate ( 1 ) rests on the screen wall ( 3 ) when the door is closed, and
  • - That a corresponding pressing device ( 4 , 4 a , 5 ) presses the contact plate ( 1 ) against the screen wall ( 3 ) ( Fig. 1 and 2).
2. Tür nach Anspruch 1, dadurch gekennzeichnet, daß die Kontaktflächen (2) der Schirmwand (3) und der Anpreßvor­ richtung (4) die am Kontaktblech anliegen, aufgerauht sind. 2. Door according to claim 1, characterized in that the contact surfaces ( 2 ) of the screen wall ( 3 ) and the Anpreßvor direction ( 4 ) which abut the contact plate are roughened. 3. Tür nach Anspruch 1 und 2, dadurch gekennzeichnet, daß an der inneren Schirmwand (3) des geschirmten Raumes An­ preßhebel oder Anpreßklappen angebracht sind, die das Kon­ taktblech (1) flächig an die Schirmwand (3) mechanisch oder pneumatisch anpressen (Fig. 1) .3. Door according to claim 1 and 2, characterized in that on the inner screen wall ( 3 ) of the screened space to press levers or pressure flaps are attached, the Kon contact plate ( 1 ) flat against the screen wall ( 3 ) mechanically or pneumatically press ( Fig . 1). 4. Tür nach den Ansprüchen 1 und 2, dadurch gekennzeich­ net, daß an das Türblatt (1 a) in der Rauminnenseite An­ preßhebel (4 a) und dazugehörige pneumatisch oder hydrau­ lisch gesteuerte Anpreßgestänge (5) angebracht sind, der­ art, daß das Anpreßgestände (5), die Anpreßhebel (4 a) und das an der Türaußenseite angebrachte Kontaktblech (1) ganzflächig an die Schirmwand (3) angepreßt werden (Fig. 2).4. Door according to claims 1 and 2, characterized in that on the door leaf ( 1 a ) in the interior of the press lever ( 4 a ) and associated pneumatically or hydraulically controlled pressure linkage ( 5 ) are attached, the type that Pressure stands ( 5 ), the pressure lever ( 4 a ) and the contact plate ( 1 ) attached to the outside of the door are pressed over the entire surface of the screen wall ( 3 ) ( Fig. 2).
DE19883843130 1988-03-02 1988-12-22 Surface contact-making device for RF doors Withdrawn DE3843130A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883843130 DE3843130A1 (en) 1988-03-02 1988-12-22 Surface contact-making device for RF doors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3806603 1988-03-02
DE19883843130 DE3843130A1 (en) 1988-03-02 1988-12-22 Surface contact-making device for RF doors

Publications (1)

Publication Number Publication Date
DE3843130A1 true DE3843130A1 (en) 1989-09-14

Family

ID=25865388

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883843130 Withdrawn DE3843130A1 (en) 1988-03-02 1988-12-22 Surface contact-making device for RF doors

Country Status (1)

Country Link
DE (1) DE3843130A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102019C1 (en) * 1991-01-24 1992-07-09 Schroff Gmbh, 7541 Straubenhardt, De
US5736671A (en) * 1994-12-27 1998-04-07 Euroshield Oy Door structure of a magnetically-shielded room

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030529A1 (en) * 1979-12-10 1981-06-17 Siemens Aktiengesellschaft Österreich Shielding door

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030529A1 (en) * 1979-12-10 1981-06-17 Siemens Aktiengesellschaft Österreich Shielding door

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102019C1 (en) * 1991-01-24 1992-07-09 Schroff Gmbh, 7541 Straubenhardt, De
US5736671A (en) * 1994-12-27 1998-04-07 Euroshield Oy Door structure of a magnetically-shielded room

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: TELEFUNKEN SYSTEMTECHNIK GMBH, 7900 ULM, DE

8120 Willingness to grant licenses paragraph 23
8127 New person/name/address of the applicant

Owner name: DEUTSCHE AEROSPACE AG, 8000 MUENCHEN, DE

8127 New person/name/address of the applicant

Owner name: DAIMLER-BENZ AEROSPACE AKTIENGESELLSCHAFT, 80804 M

8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee