DE1010204B - Coil arrangement with ferromagnetic core - Google Patents

Coil arrangement with ferromagnetic core

Info

Publication number
DE1010204B
DE1010204B DES27647A DES0027647A DE1010204B DE 1010204 B DE1010204 B DE 1010204B DE S27647 A DES27647 A DE S27647A DE S0027647 A DES0027647 A DE S0027647A DE 1010204 B DE1010204 B DE 1010204B
Authority
DE
Germany
Prior art keywords
air gap
core
ferromagnetic
coil
coil winding
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
DES27647A
Other languages
German (de)
Inventor
Dipl-Ing Paul Mehler
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DES27647A priority Critical patent/DE1010204B/en
Publication of DE1010204B publication Critical patent/DE1010204B/en
Pending 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
    • H01F17/043Fixed inductances of the signal type  with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Description

Spulenanordnung mit ferromagnetischem Kern Bei Spulenanordnungen mit ferromagnetischen Kernen, die innerhalb der Spulenwicklung einen Luftspalt aufweisen, tritt der Nachteil auf, daß ein Teil der magnetischen Kraftlinien um den Luftspalt streut und in die Spulenwicklung eintritt. Dort 2ntsteh,9n zusätzliche Wirbelstromverluste, welche die Güte der mit dem Kern versehenen Spule herabsetzen. Außerdem wird die Symmetrie von symmetrisch aufgebrachten Teilwicklungen vermindert, Um dies- Nachteile zu vermeiden, schlägt die. Erfindung vor, um den Luftspalt herum zwischen dem den Luftspalt aufweisenden Kernteil und der Spulenwicklung ferromagnetische Schirme anzuordnen. Dies-Schirme sind von dem ferromagnetischen Kern und von der Spulenwicklung in einem bestimmten Abstand angebracht. Die Wirkung beruht hierbei auf der Unterteilung des magnetischen Spannungsabfalles an dem Luftspalt.Coil arrangement with ferromagnetic core For coil arrangements with ferromagnetic cores that have an air gap within the coil winding, the disadvantage arises that a part of the magnetic lines of force around the air gap scatters and enters the coil winding. There 2 arise, 9n additional eddy current losses, which reduce the quality of the coil provided with the core. In addition, the Symmetry of symmetrically applied partial windings reduced, to this- disadvantages to avoid hitting the. Invention before, around the air gap between the Air gap having core part and the coil winding ferromagnetic shields to arrange. These screens are from the ferromagnetic core and from the coil winding attached at a certain distance. The effect is based on the subdivision the magnetic voltage drop across the air gap.

Es ist an sich bekannt, zwischen einem ferromagnetischen Stabkern und der darauf aufgebracht°n Wicklung einen Schirm aus elektrisch gut leitendein Material anzuordnen. Dieser Schirm soll die Ausbildung elektrischer Feldlinien verhindern. Bei der erfindungsgemäßen Anordnung dagegen sollen magnetische Kraftlinien von der Spulenwicklun:g abgehalten werden, und deshalb sind die Schirme aus ferramagnetischem Material. Diese Schirme füllen zugleich den Raum im Innern der Spule aus, ohne nachteilig auf die Güte der Spule zu wirken.It is known per se between a ferromagnetic rod core and the winding applied to it has a shield made of good electrical conductivity To arrange material. This screen is intended to prevent the formation of electric field lines. In the arrangement according to the invention, however, magnetic lines of force should be from the Spulenwicklun: g are held, and therefore the screens are made of ferramagnetic Material. These screens also fill the space inside the coil without being disadvantageous to affect the quality of the coil.

Des weiteren schlägt die Erfindung vor, daß der Luftspalt in der Nähe der ferromagnetischen Schirme größer als an den übrigen Stellen ist. Hierfür können die den Luftspalt begrenzenden Kernteile am Luftspalt stufenförmig ausgebildet sein, was an such bekannt ist. Auch können die den Luftspalt begrenzenden Kernteile am Luftspalt als Kegelstumpf ausgebildet sein od,°r abgerundete- Kanten aufweisen.Furthermore, the invention proposes that the air gap in the vicinity the ferromagnetic shields is larger than in the other places. For this you can the core parts delimiting the air gap be stepped at the air gap, what is known about such. The core parts delimiting the air gap can also be on the Air gap can be designed as a truncated cone or have rounded edges.

Zur Erläuterung der 1?rfindung sind in den Figuren Ausführungsbeispiele dargestellt. In diesen Figuren trägt der ferromagnetischeKern 1 als Spulenwieklung zwei gleiche Wicklungsteile 2 a und 2b. Der Lüftspalt 3 befindet sich im Mittelbutzen 4 des Kerns 1. Urn den Luftspalt 3 herum sind ferromagnetische Schirme 5 angeordnet. In Fig. 1 sind die Teile des \littelbutzens am Luftspalt stufenartig ausgebildet.To explain the invention, exemplary embodiments are shown in the figures. In these figures, the ferromagnetic core 1 has two identical winding parts 2 a and 2 b as the coil weight. The air gap 3 is located in the central vent 4 of the core 1. Ferromagnetic screens 5 are arranged around the air gap 3. In Fig. 1, the parts of the \ littelbutzens at the air gap are designed step-like.

Besteht die Spulenwicklung wie in den vorstehend i-eschriebenen Ausführungsbeispielen aus zwei symnretrischen Wicklungsteilen 2 a und 2 b, so wirkt sich der verringerte Streufluß in der Näh- der Spulenwicklung dahin günstig aus, daß die Symmetrieverhältnisse der Spulenwicklung -,weniger beeinflußt «erden als bei den bisher- gebräuchlichen ferromagnetischen Kernen, so daß demnach durch die, erfindungsgemäße Anordnung die Symmetrie der Wicklungsteile untereinander verhess-rt wird.If the coil winding consists of two symmetrical winding parts 2 a and 2 b, as in the embodiments described above, the reduced leakage flux in the sewing coil winding has a beneficial effect that the symmetry relationships of the coil winding are less influenced than in the ferromagnetic cores customary up to now, so that accordingly the symmetry of the winding parts with one another is hindered by the arrangement according to the invention.

Claims (5)

PATEN TANSpftüciir: 1.. Spulenanardnung finit ferromagnetisc'hem Kern, der innerhalb der Spulenwicklung einen Luftspalt aufweist, dadurch gekennzeichnet, daß ferromagnetische Schirme um den Luftspalt herum zwischen dem den Luftspalt aufweisenden Kernte,il und der Spulenwicklung angeordnet sind. PATEN TANSpftüciir: 1 .. Spulenanardnung finite ferromagnetic core, which has an air gap within the coil winding, characterized in that ferromagnetic screens are arranged around the air gap between the core with the air gap and the coil winding. 2. Kern für eine Spulenanordnung nach Anspruch 1, dadurch gekennzeichnet, da.ß der Luftspalt in der Nähe der ferro,magnetischen Schirme größer als an den übrigen Stellen ist. 2. Core for a coil assembly according to claim 1, characterized in that the air gap in the vicinity of the ferro, magnetic Umbrellas is larger than in the other places. 3. Kern nach Anspruch 2, dadurch gekennzeichnet, daß die den Luftspalt 1,--grenzenden Kernteile am Luftspalt stufenförmig ausgebildet sind. 3. Core according to claim 2, characterized characterized in that the core parts bordering the air gap 1, are stepped at the air gap are trained. 4. Kern nach Anspruch 2, dadurch gekennzeichnet, daß die den Luftspalt begrenzenden Kernteile am Luftspalt abgerundete Kaifiten aufweisen. 4. Core according to claim 2, characterized in that the the air gap limiting core parts have rounded Kaifiten at the air gap. 5. Kern nach Anspruch 2, dadurch gekennzeichnet, daß die den Luftspalt hegrenzenden Kernteile am Luftspalt als Kegelstümpfe ausgebildet sind. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 720 894, 733 '1783; schweizerische Patentschrift Nr. 241300; französische Patentschriften Nr. 954 454, 967 954, 944911.5. Core according to claim 2, characterized in that the core parts limiting the air gap are designed as truncated cones at the air gap. Documents considered: German Patent Specifications No. 720 894, 733 '1783; Swiss Patent No. 241 300; French patents nos. 954 454, 967 954, 944911.
DES27647A 1952-03-14 1952-03-14 Coil arrangement with ferromagnetic core Pending DE1010204B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES27647A DE1010204B (en) 1952-03-14 1952-03-14 Coil arrangement with ferromagnetic core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES27647A DE1010204B (en) 1952-03-14 1952-03-14 Coil arrangement with ferromagnetic core

Publications (1)

Publication Number Publication Date
DE1010204B true DE1010204B (en) 1957-06-13

Family

ID=7479169

Family Applications (1)

Application Number Title Priority Date Filing Date
DES27647A Pending DE1010204B (en) 1952-03-14 1952-03-14 Coil arrangement with ferromagnetic core

Country Status (1)

Country Link
DE (1) DE1010204B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096631A2 (en) * 1970-01-06 1972-02-25 Telecommunications Sa
DE2305957A1 (en) * 1973-02-07 1974-08-15 Siemens Ag TRANSFORMER FOR SWITCHING POWER SUPPLIES
EP0082421A1 (en) * 1981-12-23 1983-06-29 Siemens Aktiengesellschaft Shielded transformer embedded in an isolating mass for a high-frequency commutating element, in particular isolating transformer in a colour television receiver
DE4116740A1 (en) * 1990-05-29 1991-12-05 Murata Manufacturing Co POWER SWITCHING TRANSFORMER
DE102021103948A1 (en) 2021-02-19 2022-08-25 Bayerische Motoren Werke Aktiengesellschaft Coil component with a shielding element

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE720894C (en) * 1938-05-08 1942-05-18 Siemens Ag Winding arrangement for high frequency purposes
DE733783C (en) * 1936-08-18 1943-04-02 Emil Koncar Dr Ing Transformer or inductor with a flattened voltage characteristic
CH241300A (en) * 1943-03-01 1946-02-28 Philips Nv Self-induction coil.
FR944911A (en) * 1943-12-15 1949-04-20 Improvements to magnetic cores used as supports for windings in oscillating circuits
FR954454A (en) * 1947-10-02 1949-12-26 Improvement in magnetic cores
FR967954A (en) * 1948-06-11 1950-11-16 Magnetic cores for windings for variable electric currents

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE733783C (en) * 1936-08-18 1943-04-02 Emil Koncar Dr Ing Transformer or inductor with a flattened voltage characteristic
DE720894C (en) * 1938-05-08 1942-05-18 Siemens Ag Winding arrangement for high frequency purposes
CH241300A (en) * 1943-03-01 1946-02-28 Philips Nv Self-induction coil.
FR944911A (en) * 1943-12-15 1949-04-20 Improvements to magnetic cores used as supports for windings in oscillating circuits
FR954454A (en) * 1947-10-02 1949-12-26 Improvement in magnetic cores
FR967954A (en) * 1948-06-11 1950-11-16 Magnetic cores for windings for variable electric currents

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096631A2 (en) * 1970-01-06 1972-02-25 Telecommunications Sa
DE2305957A1 (en) * 1973-02-07 1974-08-15 Siemens Ag TRANSFORMER FOR SWITCHING POWER SUPPLIES
EP0082421A1 (en) * 1981-12-23 1983-06-29 Siemens Aktiengesellschaft Shielded transformer embedded in an isolating mass for a high-frequency commutating element, in particular isolating transformer in a colour television receiver
DE4116740A1 (en) * 1990-05-29 1991-12-05 Murata Manufacturing Co POWER SWITCHING TRANSFORMER
DE102021103948A1 (en) 2021-02-19 2022-08-25 Bayerische Motoren Werke Aktiengesellschaft Coil component with a shielding element

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