EP2562772A2 - Elément inductif - Google Patents

Elément inductif Download PDF

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Publication number
EP2562772A2
EP2562772A2 EP12180660A EP12180660A EP2562772A2 EP 2562772 A2 EP2562772 A2 EP 2562772A2 EP 12180660 A EP12180660 A EP 12180660A EP 12180660 A EP12180660 A EP 12180660A EP 2562772 A2 EP2562772 A2 EP 2562772A2
Authority
EP
European Patent Office
Prior art keywords
core
inductive component
component according
intermediate elements
windings
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.)
Withdrawn
Application number
EP12180660A
Other languages
German (de)
English (en)
Other versions
EP2562772A3 (fr
Inventor
Günther Kneidinger
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.)
InTiCA Systems AG
Original Assignee
InTiCA Systems 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 InTiCA Systems AG filed Critical InTiCA Systems AG
Publication of EP2562772A2 publication Critical patent/EP2562772A2/fr
Publication of EP2562772A3 publication Critical patent/EP2562772A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/38—Auxiliary core members; Auxiliary coils or windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/12—Magnetic shunt paths

Definitions

  • the invention relates to an inductive component according to the preamble of patent claim 1.
  • inductors for power electronics are an indispensable component, without which, for example, a DC-DC conversion in the higher power range is difficult to imagine.
  • High frequency transformers as well as storage and filter chokes are used.
  • the invention is based on an E-shaped core, in which, for example, two secondary chokes of a full bridge converter are combined with Stromverdoppler, which has the advantage that not, as before, two separate chokes are needed. This not only reduces the installation space, but also reduces the weight, which also reduces costs.
  • the combination of two reactors however, it is necessary to realize a corresponding leakage inductance, which encounters difficulties with a simple E-core, since coupling factors of more than 0.9 are already achieved without major interleaving of the windings. This value can be increased by a corresponding winding structure. If, however, lower couplings of z. B. 0.8, it becomes difficult to realize this with a simple E-core.
  • Subject of the DE 22 26 289 A1 is a premagnetized magnetic core, which requires the use of a permanent magnet.
  • permanent-magnetic platelets are used to increase the saturation in the vicinity of an air gap.
  • the invention has for its object to provide an inductive component in which it is possible to change the coupling between two or more windings.
  • two or more windings of a throttle are coupled together by a magnetic circuit, wherein the magnetic flux controlled by inserted, preferably plate-shaped core intermediate elements and depending on the application, the coupling can be adjusted.
  • a magnetic circuit wherein the magnetic flux controlled by inserted, preferably plate-shaped core intermediate elements and depending on the application, the coupling can be adjusted.
  • This does not necessarily mean that there is a rigid E-core shape. Rather, the inventively provided technology of Use core interface elements in other core geometry, such as EC, EFD, EP, EQ, ER or EFD cores.
  • the throttle has two core yokes 1, 5, the two core legs 3, 9 connect together and two center legs 11, 7 each carry a winding 2, 6.
  • the two center legs 11, 7 are here separated by an air gap 8.
  • the two windings 2, 6 are traversed by an electric current and thus generate a magnetic flux which passes through the two center legs 7, 11.
  • the magnetic circuit is closed.
  • the flux density of the central limb is split in half on the core limbs and core yokes, which are approximately half as large in cross section.
  • two plate-shaped core intermediate elements 4, 10 are used in the throttle, which are attached to the respective core leg 3, 9 and projecting parallel to the core yokes 1, 5 in the direction of the air gap 8.
  • the core intermediate elements 4, 10 are made of the same material as the remaining part of the core, which is preferably formed as a soft magnetic ferrite core, while copper is used as a conductor material for the windings 2, 6 of the choke coils.
  • each intermediate plate 4, 10 has a part-circular recess, which is adapted to the radius of the two center legs 7, 11.
  • the recess has a shape adapted to this.
  • the core intermediate elements 4, 10 serve to direct the magnetic flux targeted. This creates a stray flux, but in contrast to the main flow for the most part only one winding passes through.
  • Lg describes the total inductance when both windings are connected in series
  • L 1 and L 2 the inductance of the individually measured windings 2, 6.
  • the extent of coupling can also be assessed via the leakage inductance. For this, one winding must be short-circuited and the other inductance measured. The higher this leakage inductance, the worse the two windings are coupled.
  • the core intermediate elements 4, 10 allow by varying the distances to the center leg 7, 11 to influence the value of the leakage inductance targeted and thus to control the coupling between the two windings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
EP12180660.8A 2011-08-23 2012-08-16 Elément inductif Withdrawn EP2562772A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011051056U DE202011051056U1 (de) 2011-08-23 2011-08-23 Induktives Bauteil

Publications (2)

Publication Number Publication Date
EP2562772A2 true EP2562772A2 (fr) 2013-02-27
EP2562772A3 EP2562772A3 (fr) 2017-07-19

Family

ID=45372881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12180660.8A Withdrawn EP2562772A3 (fr) 2011-08-23 2012-08-16 Elément inductif

Country Status (2)

Country Link
EP (1) EP2562772A3 (fr)
DE (1) DE202011051056U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014205560A1 (de) * 2014-03-26 2015-10-01 SUMIDA Components & Modules GmbH Plattenförmiger Streukörper als Einsatz im Magnetkern eines induktiven Bauelements, Magnetkern mit plattenförmigem Streukörper und induktives Bauelement
DE102018218042A1 (de) * 2018-10-22 2020-04-23 Würth Elektronik eiSos Gmbh & Co. KG Kern für induktives Bauelement und induktives Bauelement
DE102018218860A1 (de) 2018-11-06 2020-05-07 Zf Friedrichshafen Ag Haltevorrichtung für eine verkoppelte Drosseleinheit, Stromverdoppleranordnung mit der Haltevorrichtung und der Drosseleinheit sowie Verfahren zur Montage der Drosseleinheit
AT526570A1 (de) * 2022-10-04 2024-04-15 Egston System Electronics Eggenburg Gmbh Spulenanordnung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226289A1 (de) 1971-05-11 1973-01-04 Tdk Electronics Co Ltd Vormagnetisierter magnetkern
DE2424131A1 (de) 1973-05-18 1974-12-05 Hitachi Metals Ltd Drossel und verfahren zur herstellung derselben
US20110140817A1 (en) 2008-08-06 2011-06-16 Atsuko Fukaya Superconducting coil assembly and magnetic field generating equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE623193C (de) * 1929-11-07 1935-12-14 Siemens Schuckertwerke Akt Ges Regelbare Drosselspule
DE646919C (de) * 1934-06-12 1937-06-23 Aeg Regelbare Drosselspule
GB749000A (en) * 1952-11-06 1956-05-16 Ernest Alan Hinksman Improvements in variable reactance reactors
DE1013789B (de) * 1952-11-22 1957-08-14 Bbc Brown Boveri & Cie Fuer den Betrieb von Leuchtstofflampen bestimmtes Vorschaltgeraet
DE19934767A1 (de) * 1999-07-23 2001-01-25 Philips Corp Intellectual Pty Magnetisches Bauelement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226289A1 (de) 1971-05-11 1973-01-04 Tdk Electronics Co Ltd Vormagnetisierter magnetkern
DE2424131A1 (de) 1973-05-18 1974-12-05 Hitachi Metals Ltd Drossel und verfahren zur herstellung derselben
US20110140817A1 (en) 2008-08-06 2011-06-16 Atsuko Fukaya Superconducting coil assembly and magnetic field generating equipment

Also Published As

Publication number Publication date
DE202011051056U1 (de) 2011-11-21
EP2562772A3 (fr) 2017-07-19

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