DE1010204B - Coil arrangement with ferromagnetic core - Google Patents
Coil arrangement with ferromagnetic coreInfo
- 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
Links
- 230000005294 ferromagnetic effect Effects 0.000 title claims description 12
- 238000004804 winding Methods 0.000 claims description 14
- 230000005291 magnetic effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/043—Fixed 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)
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)
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)
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 |
-
1952
- 1952-03-14 DE DES27647A patent/DE1010204B/en active Pending
Patent Citations (6)
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)
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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