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DE1090766B - Metal housing for variable capacitors - Google Patents

Metal housing for variable capacitors

Info

Publication number
DE1090766B
DE1090766B DEK26320A DEK0026320A DE1090766B DE 1090766 B DE1090766 B DE 1090766B DE K26320 A DEK26320 A DE K26320A DE K0026320 A DEK0026320 A DE K0026320A DE 1090766 B DE1090766 B DE 1090766B
Authority
DE
Germany
Prior art keywords
metal housing
variable capacitors
tub
patent nos
nos
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.)
Pending
Application number
DEK26320A
Other languages
German (de)
Inventor
Dipl-Ing Friedrich Kreder
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.)
FRIEDRICH KREDER DIPL ING
Original Assignee
FRIEDRICH KREDER DIPL ING
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 FRIEDRICH KREDER DIPL ING filed Critical FRIEDRICH KREDER DIPL ING
Priority to DEK26320A priority Critical patent/DE1090766B/en
Publication of DE1090766B publication Critical patent/DE1090766B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G5/00Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
    • H01G5/38Multiple capacitors, e.g. ganged

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)

Description

Metallgehäuse für Drehkondensatoren Durch die fortschreitende technische Entwicklung der Nachrichten- und Steuerungstechnik der letzten 10 Jahre war es notwendig geworden, dem Drehkondensator eine wesentlich gedrängtere Bauform zu geben. Dadurch stieg aber die Empfindlichkeit der Plattensysteme gegen Verstimmungen, die insbesondere bei der Halterung des Kondensators auftreten, so daß an das die Plattensysteme umgebende Gehäuse zwangläufig erhöhte Anforderungen gestellt werden mußten.Metal housing for variable capacitors Due to the advancing technical It was necessary to develop communications and control technology over the past 10 years has become to give the variable capacitor a much more compact design. Through this but increased the sensitivity of the disk systems to upsets, in particular occur when holding the capacitor, so that to the surrounding plate systems Housing inevitably increased requirements had to be made.

Der nunmehr verhältnismäßig sehr kritisch gewordenen V erwindungsfestigkeit des Drehkondensatorgehäuseswurde zunächst einmal nicht ohne Erfolg mit einem dickwandigen und mit hohen Seitenwänden ausgestatteten Gehäuse begegnet. Dieses aus Spritzguß bestehende Gehäuse mußte jedoch erfahrungsgemäß infolge eines zu hohen Ausdehnungskoeffizienten einem beschränkten Verwendungszweck vorbehalten bleiben.The resistance to twisting, which has now become relatively very critical The rotary capacitor case was initially not without success with a thick-walled one and housings equipped with high side walls. This made of injection molding However, experience has shown that existing housings had to be due to an excessively high coefficient of expansion reserved for a limited purpose.

Weitere aus Stahlblech gezogene Wannen wurden bald durch Boden- und Ziehrandverformungen, zum Teil sogar durch Anbringung von Kerben in den Ecken mehr versteift. Sie wurden abgelöst durch die heute weithin verbreitete Bauart eines Gehäuses, das aus gestanzten, zum Teil glatten oder verformten Einzelteilen zusammengesetzt und dann vernietet oder verschweißt wird.Further tubs made of sheet steel were soon replaced by floor and Deformations of the drawing edge, in some cases even more by making notches in the corners stiffened. They were superseded by the design of a, which is widespread today Housing composed of stamped, partly smooth or deformed individual parts and then riveted or welded.

Sehr nachteilig können sich hier schlechte Niet-oder Schweißstellen auswirken, da sie Anlaß zu Funktionsstörungen geben.Bad rivets or welds can be very disadvantageous here as they give rise to malfunctions.

Diese Nachteile werden bei einem Metallgehäuse für Drehkondensatoren, das als v erwindungssteife Wanne mit einer Wandstärke von 1 bis 2 mm in einem Stück gezogen oder gespritzt ist, in der Weise vermieden, daß erfindungsgemäß die vier Ecken der Wanne im mittleren Bereich zwischen Ober- und Unterseite mit senkrecht stehenden und stumpfwinklig an die anliegenden Flächen anstoßenden flächenförmigen Einbuchtungen versehen sind. Dadurch erhält das Drehkondensatorgehäuse eine außergewöhnlich hohe Verwindungsfestigkeit, durch die das Plattensystem 2 und 3 gegen Verstimmungen weitgehend geschützt wird.These disadvantages are in a metal housing for variable capacitors, as a torsion-resistant tub with a wall thickness of 1 to 2 mm in one piece is drawn or injected, avoided in such a way that according to the invention the four Corners of the tub in the middle area between the top and bottom with vertical standing and flat-shaped adjoining the adjacent surfaces at an obtuse angle Indentations are provided. This gives the rotary capacitor housing an exceptional one high torsional stiffness, which makes the plate system 2 and 3 against detuning is largely protected.

In der Zeichnung ist ein Ausführungsbeispiel eines Metallgehäuses für Drehkondensatoren nach der Erfindung dargestellt. In dem durch Spritzguß mit einer Wandstärke von 1 bis 2 mm aus einem Nichteisenmetall in Form einer Wanne hergestellten Metallgehäuse 1 sind Stator 2 und Rotor 3 untergebracht. An den vier Ecken ist die Wanne 1 mit den flächenförmigen Einbuchtungen 4 versehen.In the drawing is an embodiment of a metal housing shown for rotary capacitors according to the invention. In which by injection molding with a wall thickness of 1 to 2 mm made of a non-ferrous metal in the form of a tub Metal housing 1 houses the stator 2 and rotor 3. At the four corners is that The tub 1 is provided with the flat indentations 4.

Claims (1)

PATENTANSPRUCH: Metallgehäuse für Drehkondensatoren, das als verwindungssteife Wanne mit einer Wandstärke von 1 bis 2 mm in einem Stück gezogen oder gespritzt ist, dadurch gekennzeichnet, daß die vier Ecken der Wanne (1) im mittleren Bereich zwischen Ober- und Unterseite mit senkrecht stehenden und stumpfwinklig an die anliegenden Flächen anstoßenden flächenförmigen Einbuchtungen (4) versehen sind. In Betracht gezogene Druckschriften: Schweizerische Patentschriften Nr.193 749, 215 508; französische Patentschriften Nr. 822470, 896451, 936337; britische Patentschriften Nr. 146038, 418382, 489113 ; USA.-Patentschriften Nr. 1633516, 1849499, 1860 670, 1870 084, 1950 760, 2167 877, 2344689.PATENT CLAIM: Metal housing for variable capacitors, which is drawn or injected as a torsion-resistant tub with a wall thickness of 1 to 2 mm in one piece, characterized in that the four corners of the tub (1) in the middle area between the top and bottom with vertical and Flat indentations (4) adjoining the adjacent surfaces at an obtuse angle are provided. Considered publications: Swiss Patent Specifications Nos. 193 749, 215 508; French Patent Nos. 822470, 896451, 936337; British Patent Nos. 146038, 418382, 489113; U.S. Patent Nos. 1633516, 1849499, 1860 670, 1870 084, 1950 760, 2167 877, 2344689.
DEK26320A 1955-07-12 1955-07-12 Metal housing for variable capacitors Pending DE1090766B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK26320A DE1090766B (en) 1955-07-12 1955-07-12 Metal housing for variable capacitors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK26320A DE1090766B (en) 1955-07-12 1955-07-12 Metal housing for variable capacitors

Publications (1)

Publication Number Publication Date
DE1090766B true DE1090766B (en) 1960-10-13

Family

ID=7217574

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK26320A Pending DE1090766B (en) 1955-07-12 1955-07-12 Metal housing for variable capacitors

Country Status (1)

Country Link
DE (1) DE1090766B (en)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB146038A (en) * 1919-11-27 1920-07-08 William Edward Barber Improvements in electric condensers
US1633516A (en) * 1927-01-17 1927-06-21 Fed Telegraph Co Multiple variable condenser
US1849499A (en) * 1930-09-29 1932-03-15 Atwater Kent Mfg Co Condenser
US1860670A (en) * 1927-01-31 1932-05-31 Dejur Amsco Corp Air condenser
US1870084A (en) * 1928-06-14 1932-08-02 Vincent G Apple Variable condenser
US1950760A (en) * 1929-01-02 1934-03-13 Crosley Radio Corp Condenser
GB418382A (en) * 1933-04-25 1934-10-24 William Rogers Improvements in or relating to gang condensers
CH193749A (en) * 1935-12-14 1937-10-31 M Oberlaender Hans Process for the production of variable capacitors, variable capacitors and device for carrying out the process.
FR822470A (en) * 1936-06-02 1937-12-30 Bosch Robert Rotating capacitor
GB489113A (en) * 1936-01-25 1938-07-20 Loewe Opta Gmbh Rotating plate condenser
US2167877A (en) * 1935-11-26 1939-08-01 Radio Condenser Co Electrical condenser construction
CH215508A (en) * 1940-06-17 1941-06-30 Telefunken Gmbh Variable capacitor.
US2344689A (en) * 1942-03-12 1944-03-21 Bendix Aviat Corp Variable capacitor
FR896451A (en) * 1943-03-22 1945-02-22 Radioelectrique Soc Ind Development of variable capacitors
FR936337A (en) * 1944-11-04 1948-07-16 Philips Nv Variable capacitor

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB146038A (en) * 1919-11-27 1920-07-08 William Edward Barber Improvements in electric condensers
US1633516A (en) * 1927-01-17 1927-06-21 Fed Telegraph Co Multiple variable condenser
US1860670A (en) * 1927-01-31 1932-05-31 Dejur Amsco Corp Air condenser
US1870084A (en) * 1928-06-14 1932-08-02 Vincent G Apple Variable condenser
US1950760A (en) * 1929-01-02 1934-03-13 Crosley Radio Corp Condenser
US1849499A (en) * 1930-09-29 1932-03-15 Atwater Kent Mfg Co Condenser
GB418382A (en) * 1933-04-25 1934-10-24 William Rogers Improvements in or relating to gang condensers
US2167877A (en) * 1935-11-26 1939-08-01 Radio Condenser Co Electrical condenser construction
CH193749A (en) * 1935-12-14 1937-10-31 M Oberlaender Hans Process for the production of variable capacitors, variable capacitors and device for carrying out the process.
GB489113A (en) * 1936-01-25 1938-07-20 Loewe Opta Gmbh Rotating plate condenser
FR822470A (en) * 1936-06-02 1937-12-30 Bosch Robert Rotating capacitor
CH215508A (en) * 1940-06-17 1941-06-30 Telefunken Gmbh Variable capacitor.
US2344689A (en) * 1942-03-12 1944-03-21 Bendix Aviat Corp Variable capacitor
FR896451A (en) * 1943-03-22 1945-02-22 Radioelectrique Soc Ind Development of variable capacitors
FR936337A (en) * 1944-11-04 1948-07-16 Philips Nv Variable capacitor

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