DE888584C - Rotary capacitor, the lamellas of which are attached to a carrier element with a small expansion coefficient - Google Patents

Rotary capacitor, the lamellas of which are attached to a carrier element with a small expansion coefficient

Info

Publication number
DE888584C
DE888584C DEN1327D DEN0001327D DE888584C DE 888584 C DE888584 C DE 888584C DE N1327 D DEN1327 D DE N1327D DE N0001327 D DEN0001327 D DE N0001327D DE 888584 C DE888584 C DE 888584C
Authority
DE
Germany
Prior art keywords
carrier element
attached
lamellas
rotary capacitor
expansion coefficient
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
DEN1327D
Other languages
German (de)
Inventor
Christian Schwaiger
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.)
ELEKTROWERK GmbH
NSF NUERNBERGER SCHRAUBENFAB
Original Assignee
ELEKTROWERK GmbH
NSF NUERNBERGER SCHRAUBENFAB
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 ELEKTROWERK GmbH, NSF NUERNBERGER SCHRAUBENFAB filed Critical ELEKTROWERK GmbH
Priority to DEN1327D priority Critical patent/DE888584C/en
Application granted granted Critical
Publication of DE888584C publication Critical patent/DE888584C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
    • H01G5/04—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode
    • H01G5/06—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode due to rotation of flat or substantially flat electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Description

Drehkondensator, dessen Lamellen auf einem Trägerelement mit kleinem Ausdehnungskoeffizienten befestigt sind Beim Drehkondensator ist es von großer Wichtigkeit, Verschiebungen, Verdrehungen bzw. Verwindungen der Welle, auf der die Lamellen angebracht sind, zu verhindern, die durch Temperatureinflüsse eintreten können. Daher muß ein solches Material für das Trägerelement verwendet werden, das einen möglichst kleinen Ausdehnungskoeffizienten hat.Rotary capacitor, the fins of which on a carrier element with a small The expansion coefficients are fixed. With the rotary capacitor it is of great importance that Displacements, twisting or twisting of the shaft on which the lamellas are attached are to be prevented, which can occur due to temperature influences. Therefore a must such material can be used for the carrier element that is as small as possible Has expansion coefficients.

Es ist nun gefunden. worden, daß sich keramische Substanzen, wie Steatit oder Metallegierungen mit einem geringen Temperaturaus.dehnungskoeffizienten am besten eignen. Sofern man isolierende Träger benutzt, genügt es, wenn man auf der Achse ganz oder teilweise oder in Abschnitten eine sehr dünne leitfähige Schicht, z. B. durch Versilberung, aufbringt, die keinen entscheidenden neuen Ausdehnungskoeffizienten zeigt, so daß also die Ausdehnung der Achse bestimmend wirkt. Auch elastische .Schichten können angebracht werden. Den Sitz der Lamellen kann man .durch Aufpressen und/oder durch Verlöten verbessern, da eine dünne Löthaut fast ohne Einfluß ist.It is now found. been found that ceramic substances such as steatite or metal alloys with a low coefficient of thermal expansion am best suited. If you are using insulating supports, it is sufficient if you are on the Axis completely or partially or in sections a very thin conductive layer, z. B. by silver plating, which does not have a decisive new coefficient of expansion shows, so that the extent of the axis has a determining effect. Also elastic layers can be attached. The seat of the slats can .by pressing on and / or improve by soldering, since a thin solder skin is almost without influence.

Durch diese Gestaltung wird erreicht, daß, die Ausdehnung nur nach Maßgabe des Trägerstabes erfolgt und. genau berechnet .werden kann. Durch geschickten Auf- und Einbau des Rotors und Stators wird ein guter metallischer und mechanischer Zusammenhalt erzielt.This design ensures that the expansion only after Provision of the support rod takes place and. can be calculated precisely. Skilful assembly and installation of the rotor and stator make a good metallic one and mechanical cohesion achieved.

Claims (1)

PATENTANSPRÜCHE: i. Drehkondensator, dessen einzelne Lamellen auf einem Trägerelement mit kleinem Ausdehnungskoeffizienten, z. B. aus Steatit oder auch aus. Metallegierungen mit .geringem thermischen Ausdehnungskoeffizienten befestigt sind, dadurch gekennzeichnet, daß die Befestigung mittels einer im Verhältnis zum Trägerelement derart dünnen Metallisierung desselben vorgesehen ist, daß Verschiebungen der Lamellen nur im Rahmen der Ausdehnung des Trägerelements möglich sind. Drehkondensator nach Anspruch i, dadurch gekennzeichnet, daß auf dem Trägerelement, sofern es nichtleitend ist, ein dünner leitfähiger Überzug ganz ad-er in Abschnitten fest oder elastisch angebracht ist, der auf die Ausdehnung des Trägerelements ohne Einfluß bleibt. PATENT CLAIMS: i. Rotary capacitor, the individual lamellae on a carrier element with a small expansion coefficient, z. B. from steatite or from. Metal alloys with a low coefficient of thermal expansion are attached, characterized in that the attachment is provided by means of a metallization which is so thin in relation to the carrier element that the lamellas can only be displaced within the scope of the expansion of the carrier element. Rotary capacitor according to claim i, characterized in that on the carrier element, if it is non-conductive, a thin conductive coating is attached firmly or elastically entirely in sections, which has no influence on the expansion of the carrier element.
DEN1327D 1939-11-19 1939-11-19 Rotary capacitor, the lamellas of which are attached to a carrier element with a small expansion coefficient Expired DE888584C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN1327D DE888584C (en) 1939-11-19 1939-11-19 Rotary capacitor, the lamellas of which are attached to a carrier element with a small expansion coefficient

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN1327D DE888584C (en) 1939-11-19 1939-11-19 Rotary capacitor, the lamellas of which are attached to a carrier element with a small expansion coefficient

Publications (1)

Publication Number Publication Date
DE888584C true DE888584C (en) 1953-09-03

Family

ID=7337710

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN1327D Expired DE888584C (en) 1939-11-19 1939-11-19 Rotary capacitor, the lamellas of which are attached to a carrier element with a small expansion coefficient

Country Status (1)

Country Link
DE (1) DE888584C (en)

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