DE720694C - Shielding housing for electrical switching elements, especially coils - Google Patents

Shielding housing for electrical switching elements, especially coils

Info

Publication number
DE720694C
DE720694C DET52170D DET0052170D DE720694C DE 720694 C DE720694 C DE 720694C DE T52170 D DET52170 D DE T52170D DE T0052170 D DET0052170 D DE T0052170D DE 720694 C DE720694 C DE 720694C
Authority
DE
Germany
Prior art keywords
switching elements
shielding
openings
electrical switching
coils
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
DET52170D
Other languages
German (de)
Inventor
Ludwig Hartl
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 DET52170D priority Critical patent/DE720694C/en
Application granted granted Critical
Publication of DE720694C publication Critical patent/DE720694C/en
Expired 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
    • H05K9/002Casings with localised screening

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Description

Abschirmgehäuse für elektrische Schaltelemente, insbesondere Spulen In der Hochfrequenztechnik spielt eine metallische Abschirmung von Schaltelementen eine wichtige Rolle. Besonders häufig müssen Spulen und Spulensätze gegen den Einfluß äußerer elektrischer oder magnetischer Felder abgeschirmt werden. Um eine befriedigende Schirmn-irkung zu erzielen, mu.ß die Abschirmung allseitig und wallständig sein. Es werden daher bekanntlich die abzuschirmenden Teile in geschlossenen Abschirmgehäusen untergebracht, die nur die notwendigen Durchlaßöffnungen für die Stromanschlüsse o. dgl. besitzen. Sind in einer derartigen Abschirmhülle z. B. Spulen, die wahlweisse für verschiedene Wellenbereiche in Frage kommen, angeordnet, so ist es notwendig, das Abschirmgehäuse abzunehmen, wenn die Spulen ausgewechselt werden sollen. Es ist aber auch bereits bekannt, das Abschirmgehäuse mit Öffnungen auszustatten, um durch diese hindurch in das Innere des Gehäuses hineinreichen zu können. Diese Öffnungen müssen aber für gewöhnlich verschlossen gehalten werden, beispielsweisse durch einen Schieber. Die Anordnung eines festen Gehäuses und eines beweglichen Schiebers haben jedoch Nachteile, weil bei vielen auszuwechselnden Schaltelementen auch ,entsprechend viel Öffnungen vorgesehen sein müssen, die ihrerseits auch wieder abdeckbar sein sollen.Shielding housings for electrical switching elements, in particular coils Metallic shielding of switching elements plays a role in high-frequency technology an important role. Coils and coil sets have to counter the influence particularly often shielded from external electrical or magnetic fields. To a satisfactory To achieve a shielding effect, the shielding must be on all sides and walled. It is therefore known that the parts to be shielded are in closed shielding housings housed, which only the necessary passage openings for the power connections o. The like. Own. Are in such a shield z. B. Coils, the optional are arranged for different wavebands, it is necessary to remove the shield case when the coils are to be replaced. It but is also already known to equip the shielding housing with openings to to be able to reach through this into the interior of the housing. These openings but usually have to be kept locked, for example by a Slider. Have the arrangement of a fixed housing and a movable slide however, there are also disadvantages because there are many switching elements to be replaced, accordingly a lot of openings must be provided, which in turn can also be covered again should.

Erfindungsgemäß werden daher zwei konzentrisch ineinander angeordnete Metallzylinder o. dgl. gegeneinander verdrehbar angeordnet, deren Mantelflächen je eine Öffnung aufweisen, die so angeordnet sind, daß sie durch Drehung der beiden Zylinder gegeneinander zur Deckung gebracht werden können, so daß durch die Öffnungen der Zugang zum Innern der Abschirmhülle an jeder beliebigen Stelle frei wird. Die Anordnung der Öffnungen ist dabei so getroffen, daß in der Ruhelage, d. h. wenn die Abschirmwirkung verlangt wird, die Öffnungen in dem einen Zylinder durch die Metallflächen des'anderen Zylinders überdeckt werden. Die Größe der Öffnungen ist so gewählt, daß. ohne weiteres die in der Abschirm ülle befindlichen Schaltelemente ausgewechselt werden können.According to the invention, therefore, two are arranged concentrically one inside the other Metal cylinder o. The like. Arranged rotatable against one another, the outer surfaces of which each have an opening which are arranged so that they can be opened by rotating the two Cylinders can be brought into congruence with one another, so that through the openings access to the interior of the shielding cover is free at any point. the The arrangement of the openings is made so that in the rest position, d. H. if the shielding effect is required, the openings in one cylinder through the Metal surfaces of the other cylinder are covered. The size of the openings is chosen so that. readily the switching elements located in the shielding area can be exchanged.

Die Erfindung ist in der Abbildung schematisch dargestellt.The invention is shown schematically in the figure.

A und B sind die zwei konzentrisch ineinander .angeordneten Abschirmgeb,äuseoder Metallzylinder, von dienen jeder für sich drehbar ist. ct ist eine Öffnung in der Mantelfläche des .äußeren Zylinders A und b eine Öffnung im inneren Zylinder B. Durch Verdrehen der Zylinder A und B gegeneinander können die Öffnungen a und h zur Deckung gebracht werden. In der Ruhelage wird die Öffnung in dem einen Zylinder von der Metallfläche des anderen Zylinders überdeckt. Die beiden Öffnungen genügen infolge der Drehbarkeit der . Gehäuse, um ringsherum einen Zugang zu den abgeschirmten Schaltelementen zu haben. A and B are the two concentric shielding housings or metal cylinders, each of which can be rotated. ct is an opening in the outer surface of the outer cylinder A and b is an opening in the inner cylinder B. By rotating the cylinders A and B against each other, the openings a and h can be made to coincide. In the rest position, the opening in one cylinder is covered by the metal surface of the other cylinder. The two openings are sufficient due to the rotatability of the. Housing in order to have access to the shielded switching elements all around.

Besonders zweckmäßig ist die Anwendung der Abschirmvorrichtung gemäß der Erfindung für eine Spulentrommel, in welcher der Spulenkranz der verschiedenen Spulen, die z. B. für verschiedene Wellenbereiche verwendet werden, um eine Achse gelagert ist. Dann wird die Abschirmvorrichtung koaxial mit der Achse der Spulentrommel angeordnet.The use of the shielding device according to FIG of the invention for a bobbin, in which the bobbin of the various Coils z. B. used for different wave ranges around an axis is stored. Then the shielding device becomes coaxial with the axis of the bobbin drum arranged.

Claims (1)

PATENTANSPRUCH: Abschirrngehäuse mit verdeckbaren Öffnungen in den Wandungen, dadurch gekennzeichnet, daß zwei konzentrische Gehäuse beweglich angeordnet und mit je einer Öffnung in der Wandung ausgestattet sind, die durch Verdrehen der beiden Gehäuse zueinander in jeder beliebigen Stellung zur Deckung gebracht werden können.PATENT CLAIM: Isolation housing with concealable openings in the Walls, characterized in that two concentric housings are movably arranged and are each equipped with an opening in the wall, which can be opened by turning the both housings can be brought to coincide with one another in any position can.
DET52170D 1939-04-28 1939-04-28 Shielding housing for electrical switching elements, especially coils Expired DE720694C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET52170D DE720694C (en) 1939-04-28 1939-04-28 Shielding housing for electrical switching elements, especially coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET52170D DE720694C (en) 1939-04-28 1939-04-28 Shielding housing for electrical switching elements, especially coils

Publications (1)

Publication Number Publication Date
DE720694C true DE720694C (en) 1942-05-13

Family

ID=7563857

Family Applications (1)

Application Number Title Priority Date Filing Date
DET52170D Expired DE720694C (en) 1939-04-28 1939-04-28 Shielding housing for electrical switching elements, especially coils

Country Status (1)

Country Link
DE (1) DE720694C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969113C (en) * 1942-09-29 1958-04-30 Siemens Ag Arrangement for treating, for example heating, an item by the action of an electrical high frequency field
DE2935965A1 (en) * 1979-09-06 1981-03-12 Kurt 2110 Buchholz Fritze ARRANGEMENT FOR TELEMETRIC MONITORING OF MOVING MACHINE PARTS.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969113C (en) * 1942-09-29 1958-04-30 Siemens Ag Arrangement for treating, for example heating, an item by the action of an electrical high frequency field
DE2935965A1 (en) * 1979-09-06 1981-03-12 Kurt 2110 Buchholz Fritze ARRANGEMENT FOR TELEMETRIC MONITORING OF MOVING MACHINE PARTS.

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