DE702835C - Device for fastening and shielding high-frequency transformers on the apparatus frame - Google Patents

Device for fastening and shielding high-frequency transformers on the apparatus frame

Info

Publication number
DE702835C
DE702835C DE1931K0121856 DEK0121856D DE702835C DE 702835 C DE702835 C DE 702835C DE 1931K0121856 DE1931K0121856 DE 1931K0121856 DE K0121856 D DEK0121856 D DE K0121856D DE 702835 C DE702835 C DE 702835C
Authority
DE
Germany
Prior art keywords
apparatus frame
frequency transformers
fastening
shielding
shielding high
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
DE1931K0121856
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1931K0121856 priority Critical patent/DE702835C/en
Application granted granted Critical
Publication of DE702835C publication Critical patent/DE702835C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36Electric or magnetic shields or screens
    • H01F27/363Electric or magnetic shields or screens made of electrically conductive material

Landscapes

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

Description

Einrichtung zur Befestigung und Abschirmung von Hochfrequenztransformatoren, auf dem Apparategestell Bei der Anbringung von Abstimmselbstinduktionen in Empfangsgeräten ist es bekanntlich nichtig, eine induktive und kapazitive Beeinflussung der Abstimmkreise hauptsächlich untereinander zu vermeiden. Insbesondere bei überlagerungsempfängern, die oft eine große Anzahl von abgestimmten Kreisen enthalten, kann sich die Notwendigkeit ergeben, viele solcher Abschirmbecher vorzusehen. Die Anbringung einer größeren Anzahl von Abschirmbechern auf dem Empfängergestell beansprucht neben dem Materialaufwand für die Abschirmbecher selbst außerdem noch einen erhöhten Materialaufwand des Empfängergestells selbst, das ja den nötigen Raum für die Abschirmungsgehäuse bieten muß; aus dieser Vergrößerung der Ausmaße folgt wieder, daß es notwendig ist, stärkere Materialien für das Empfängergestell zu verwenden, damit es auch bei den benötigten Ausmaßen die erforderliche Steifheit besitzt.Device for fastening and shielding high-frequency transformers, on the apparatus frame When installing self-tuning inductions in receivers it is known to be null and void to have an inductive and capacitive influence on the tuning circuits mainly to avoid each other. Especially with heterodyne receivers, which often contain a large number of voted circles, the need may increase result to provide many such shielding cups. Attaching a larger one The number of shielding cups on the receiver frame takes up the cost of materials for the shielding cup itself, there is also an increased cost of materials for the receiver frame itself, which must offer the necessary space for the shielding housing; from this Enlargement of the dimensions again follows that it is necessary to use stronger materials to be used for the receiver frame so that it also has the required dimensions has the required rigidity.

Nach vorliegender Erfindung werden Hachfrequenztransformatoren und insbesondere Zwischenfrequenztransformatoren dadurch auf dem Apparategestell befestigt und zugleich abgeschirmt, daß in dem Apparategestell Ausbiegungen oder Ausprägungen zur Aufnahme der Transformatorspulen vorgesehen werden, die gleichzeitig zur Versteifung des Gestells dienen, und daß die offene Seite dieser Hohlräume durch eine Abschirmung, z. B. Winkelstücke, abgedeckt wird.According to the present invention, high frequency transformers and in particular intermediate frequency transformers thereby attached to the apparatus frame and at the same time shielded, that bends or forms in the apparatus frame to accommodate the transformer coils, which are also used for stiffening serve the frame, and that the open side of these cavities by a shield, z. B. elbows, is covered.

Die in den durch die Ausprägungen oder Ausbiegungen entstandenen Räumen untergebrachten Spulen können auch einer größeren Anzahl von Kreisen angehören.The spaces created by the expressions or bends housed coils can also belong to a larger number of circles.

Die Abbildung zeigt eine Ausführungsform des Erfindungsgedankens. In einem Apparategestell, das aus Blech bestehen möge und in an sich bekannter Weise zum Tragen der Bauteile dient, sind Rillen a und b eingebogen oder eingepreßt, welche durch Winkelstücke (in der Abbildung punktiert gezeichnet) abgedeckt sind. Innerhalb der sich so ergebenden prismatischen Hohlräume sind die Spulen untergebracht.The figure shows an embodiment of the inventive concept. In an apparatus frame, which may consist of sheet metal and is used in a known manner to support the components, grooves a and b are bent or pressed in, which are covered by angle pieces (shown in dotted lines in the figure). The coils are housed within the resulting prismatic cavities.

Hierbei ist angenommen. daß die Spulen bzw. ihre Wickelkörper senkrecht zur Achse vierkantig .ausgebildet sind, so daß sie sich in den genannten Räumen, die als Abschirmkammern wirken, in der Richtung ihrer Achse verschieben lassen, ohne sich hierbei aber um ihre Achse drehen zu können. Sie können dann beispielsweise durch Stellschrauben von den Stirnseiten her leicht in ihrem gegenseitigen Abstand verstellt werden, was zur Abstimmung oder Kopplungseinstellung ausgenutzt werden kann. Die die Abschirmkammern bildenden Rillen des Apparategestells können abweichend von der in der Abbildung dargestellten Anordnung auch in jeder anderen Richtung, z. B. in der Längsrichtung, verlaufen.This is assumed. that the coils or their bobbins are perpendicular are square to the axis, so that they are in the named spaces, which act as shielding chambers can be shifted in the direction of their axis, but without being able to rotate around its axis. You can then for example by adjusting screws from the front sides easily in their mutual distance can be adjusted, which can be used for coordination or coupling setting can. The grooves of the apparatus frame that form the shielding chambers can differ from the arrangement shown in the figure also in any other direction, z. B. in the longitudinal direction.

Claims (1)

PATENTANSPRUCH: Einrichtung zur Befestigung und Abschirmung von Hochfrequenztransformatoren, insbesondere von Zwischenfrequenztransformatoren, auf dem Apparategestell, dadurch gekennzeichnet, daß in dem Apparategestell Ausbiegungen oder Ausprägungen zur Aufnahme der Transformatorspulen vorgesehen sind, die gleichzeitig zur Versteifung des Gestells dienen, und daß die offene Seite dieser Hohlräume durch eine Abschirmung (z. B. Winkelstücke) abgedeckt ist.PATENT CLAIM: Device for fastening and shielding high-frequency transformers, in particular of intermediate frequency transformers, on the apparatus frame, thereby characterized in that the apparatus frame is bent or shaped for receiving the transformer coils are provided, which at the same time stiffen the frame serve, and that the open side of these cavities is covered by a shield (e.g. Elbows) is covered.
DE1931K0121856 1931-08-27 1931-08-27 Device for fastening and shielding high-frequency transformers on the apparatus frame Expired DE702835C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1931K0121856 DE702835C (en) 1931-08-27 1931-08-27 Device for fastening and shielding high-frequency transformers on the apparatus frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1931K0121856 DE702835C (en) 1931-08-27 1931-08-27 Device for fastening and shielding high-frequency transformers on the apparatus frame

Publications (1)

Publication Number Publication Date
DE702835C true DE702835C (en) 1941-02-18

Family

ID=7244962

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1931K0121856 Expired DE702835C (en) 1931-08-27 1931-08-27 Device for fastening and shielding high-frequency transformers on the apparatus frame

Country Status (1)

Country Link
DE (1) DE702835C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1064575B (en) * 1956-08-27 1959-09-03 Siemens Elektrogeraete Gmbh Components of electrical communications equipment carrying chassis, in particular radio equipment chassis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1064575B (en) * 1956-08-27 1959-09-03 Siemens Elektrogeraete Gmbh Components of electrical communications equipment carrying chassis, in particular radio equipment chassis

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