DE763032C - High frequency coil with high frequency iron core - Google Patents

High frequency coil with high frequency iron core

Info

Publication number
DE763032C
DE763032C DEB165273D DEB0165273D DE763032C DE 763032 C DE763032 C DE 763032C DE B165273 D DEB165273 D DE B165273D DE B0165273 D DEB0165273 D DE B0165273D DE 763032 C DE763032 C DE 763032C
Authority
DE
Germany
Prior art keywords
high frequency
core
iron core
coil
adjustment
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
DEB165273D
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DEB165273D priority Critical patent/DE763032C/en
Application granted granted Critical
Publication of DE763032C publication Critical patent/DE763032C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/04Fixed inductances of the signal type  with magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Description

Es würde bereits vorgeschlagen, bei Hochfrequenzeisenkernspulen die Induktivität dadurch abzugleichen, daß der Kern teilweise ausgebohrt wird. Dieses Verfahren hat jedoch den Nachteil, dar die Induktivitätsänderung bei einer Fehlabgleichung nicht mehr rückgängig gemacht werden kann. Man hat daher bereits vorgeschlagen, dem Eisenkern zur Abgleichung eine Platte mehr oder weniger zu nähern. Es war auch schon bekannt, im Innern einer Spule oder eines feststehenden Kerns einen zweiten Kern verschiebbar anzuordnen. Für diesen beweglichen Kern verwendete man vorzugsweise möglichst verlustarme Werkstoffe, z. B. Eisenlegierungen, oder unterteilte das Eisen in bekannter Weise durch Lamellieren oder Aufteilen in ein Drahtbündel. Schließlich hatte man auch bereits versucht, für den verschiebbaren Kern Hochfrequenzeisen zu verwenden. Dies führte jedoch zu sehr umständlichen und teueren Bauarten.It has already been proposed that the Adjust inductance by partially drilling out the core. This However, the method has the disadvantage that the inductance change in the event of a mismatch can no longer be undone. It has therefore already been suggested to approximate a plate more or less to the iron core for alignment. It was too already known, a second inside a coil or a fixed core To arrange the core displaceably. It was preferred to use this movable core Low-loss materials as possible, e.g. B. iron alloys, or divided the iron in a known manner by lamination or dividing into a wire bundle. In the end one had already tried to use high-frequency iron for the movable core use. However, this led to very cumbersome and expensive designs.

Während man nämlich vorher an den festen und aus rein metallischen Werkstoffen bestehenden Kernen ohne weiteres die für die Verschiebung notwendigen Hilfsmittel anbringen konnte, wurde der Fachmann bei der Verwendung der inhomogenen Hochfrequenzmasse vor die Aufgabe gestellt, diese Hilfsmittel so anzubringen, daß einerseits wie bisher eine möglichst feine und genaue Einstellung des beweglichen Kerns gegenüber der Spule erzielt werden konnte, andererseits diese @,Iittel auch bei der geringeren Festigkeit des neuen Werkstoffs eine genügend lange Zeit in betriebsfähigem Zustand blieben, d. h. nicht abbrachen, nicht zerdrückt wurden usw. Solange der verschiebbare Kern aus festem Metall bestand, hatte man, -um ihn vor ungewollten Verstellungen zu bewahren, vorgeschlagen, ihn mit einer Bohrung zu versehen, in der sich ein Innengewinde befand. Mittels einer in der Spulenbefestigungsvorrichtung gelagerten Spindel, die durch die Bohrung des Abgleichkerns hindurchging, konnte der Kern verschoben werden. Bei Abgleichvorrichtungen mit Kernen aus Hochfrequenzmasse hat man vorgeschlagen, die Hochfrequenzmasse mit einer Kapsel zu umgeben, an die eine ganz aus Metall bestehende Schraube angesetzt war. Mittels dieser Schraube wurde der aus der umkapselten Masse bestehende Kern gegenüber der Spule in einem in der Befestigungsvorrichtung der Spule angeordneten Muttergewinde verschoben.While you have previously worked on the solid and made of purely metallic Materials existing cores easily the necessary for the shift Was able to attach aids, the skilled in the use of the inhomogeneous High frequency mass given the task of attaching these tools so that on the one hand, as before, the finest and most precise possible adjustment of the movable Kerns compared to the coil could be achieved, on the other hand this @, Iittel also Given the lower strength of the new material, it will be operational for a long enough time Condition remained, d. H. did not break off, were not crushed, etc. As long as the Slidable core was made of solid metal, one had to avoid it unwanted To preserve adjustments, proposed to provide him with a hole in which was an internal thread. By means of one in the coil mounting device mounted spindle, which went through the bore of the adjustment core, could the core to be moved. In the case of balancing devices with cores made of high-frequency ground it has been proposed to surround the high frequency mass with a capsule to which an all-metal screw was attached. By means of this screw became the core consisting of the encapsulated mass opposite the coil in one displaced in the fastening device of the coil arranged nut thread.

Bei der Anordnung gemäß der Erfindung wird der aus Hochfrequenzeisenkernmasse bestehende Abgleichkern selbst als Schraube ausgebildet und ist mehr oder weniger tief in eine Längsbohrung des feststehenden Teiles einschraubbar.In the arrangement according to the invention, it is made of high frequency iron core mass existing adjustment core itself designed as a screw and is more or less can be screwed deep into a longitudinal bore in the stationary part.

Der als Schraube ausgebildete Abgleichkern kann so verwendet werden, daß er nur zum Feinabgleichen dient, während eine Vorabgieichung durch mehr oder weniger tiefes Ausbohren der Aussparung des Hauptkerns oder durch eine Zusatzbohrung erfolgt.The adjustment core, which is designed as a screw, can be used that it is only used for fine adjustment, while a pre-adjustment by more or less deep drilling of the recess of the main core or through an additional drilling he follows.

In der Abbildung ist ein Ausführungsbeispiel der Erfindung dargestellt. Hierin bedeuten a einen Eisenkern und b die Flansche einer Spule. Mit lt ist ein Abgleichkern bezeichnet, der als Schraube ausgebildet und in dem Innengewinde der Bohrung i verschraubbar ist. Die Bohrung k dient zur Vorabstimmung.In the figure, an embodiment of the invention is shown. Here , a denotes an iron core and b denotes the flanges of a coil. Lt denotes an adjustment core which is designed as a screw and can be screwed into the internal thread of the bore i. The hole k is used for preliminary adjustment.

Claims (1)

PATENTANSPRUCH: Hochfrequenzspule mit Hochfrequenzeisenkern; dadurch gekennzeichnet, daß sie einen feststehenden Hauptkern mit einer Längsbohrung enthält. in die ein zweiter. ebenfalls aus Hochfrequenzeisenkernmasse bestehender und als Schraube ausgebildeter Kern mehr oder weniger tief einschraubbar ist. PATENT CLAIM: high-frequency coil with high-frequency iron core; characterized in that it includes a fixed main core with a longitudinal bore. in a second. likewise consisting of high-frequency iron core mass and designed as a screw core can be screwed in more or less deeply.
DEB165273D 1934-04-28 1934-04-28 High frequency coil with high frequency iron core Expired DE763032C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB165273D DE763032C (en) 1934-04-28 1934-04-28 High frequency coil with high frequency iron core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB165273D DE763032C (en) 1934-04-28 1934-04-28 High frequency coil with high frequency iron core

Publications (1)

Publication Number Publication Date
DE763032C true DE763032C (en) 1951-08-06

Family

ID=7005394

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB165273D Expired DE763032C (en) 1934-04-28 1934-04-28 High frequency coil with high frequency iron core

Country Status (1)

Country Link
DE (1) DE763032C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964959C (en) * 1953-04-16 1957-05-29 Siemens Ag Adjustable, small high-frequency coil
DE1259976B (en) * 1962-09-12 1968-02-01 Siemens Ag High frequency coil for frequencies greater than 1 MHz

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964959C (en) * 1953-04-16 1957-05-29 Siemens Ag Adjustable, small high-frequency coil
DE1259976B (en) * 1962-09-12 1968-02-01 Siemens Ag High frequency coil for frequencies greater than 1 MHz

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