EP1405322B1 - Bobine a inductance variable - Google Patents

Bobine a inductance variable Download PDF

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Publication number
EP1405322B1
EP1405322B1 EP02754873A EP02754873A EP1405322B1 EP 1405322 B1 EP1405322 B1 EP 1405322B1 EP 02754873 A EP02754873 A EP 02754873A EP 02754873 A EP02754873 A EP 02754873A EP 1405322 B1 EP1405322 B1 EP 1405322B1
Authority
EP
European Patent Office
Prior art keywords
core
choke according
swinging choke
swinging
double
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 - Fee Related
Application number
EP02754873A
Other languages
German (de)
English (en)
Other versions
EP1405322A2 (fr
Inventor
Michael Baumann
Johann Winkler
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.)
Vogt Electronic AG
Original Assignee
Vogt Electronic 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
Priority claimed from DE2002116846 external-priority patent/DE10216846B4/de
Application filed by Vogt Electronic AG filed Critical Vogt Electronic AG
Publication of EP1405322A2 publication Critical patent/EP1405322A2/fr
Application granted granted Critical
Publication of EP1405322B1 publication Critical patent/EP1405322B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices

Definitions

  • the invention relates to vibration throttles, which are used in electrical engineering.
  • the voltage increase for igniting the fluorescent lamps is achieved by means of a series resonant circuit of an LC combination. This is described, for example, in the already mentioned catalog of VOGT electronic AG on pages 60-04 and 60-05. Voltages of up to 4 kV SS are generated at the coils, and currents of up to 3.5 A must be processed, or even more.
  • the voltage which occurs between the individual winding layers should be as low as possible.
  • the lacquer layer of the wires must prevent a flashover within individual layers, which would be possible due to the corresponding potential difference.
  • small chamber width w necessary to keep the tension between the individual layers as small as possible.
  • the so-called concept of the lying core as illustrated schematically in FIG. 8, for example, the winding window height b must be subdivided by three additional space-receiving chamber walls to accommodate relatively small chamber widths w to reach. This creates four chambers to realize the necessary dielectric strength can.
  • the invention has for its object to provide a swing throttle constructed as simple as possible, which makes it possible to be miniaturized stronger than the known from the prior art vibration chokes, without suffering substantial losses in the electrical, magnetic and thermal data.
  • the stray field is minimized due to the maximization of the magnetic cross section.
  • the oscillating choke according to the invention eliminates the strand, which in turn leads to the elimination of the disadvantages described above with respect to strands.
  • the strand can be omitted due to the minimal stray field in the air gap region and because of the resulting due to the large effective magnetic cross-section low number of turns.
  • due to the higher filling factor of solid wires more copper than in Litzenbewicklung in the changing room are introduced. This results in a reduction of ohmic losses, which compensates for the unwanted frequency losses of solid wires, such as eddy current losses (due to the small air gap and the small number of turns relatively low), skin effects and Proximity bin in total to a large extent.
  • the basic structure of oscillating inductors according to the invention with a symmetrical double E-core, which has two geometrically identical core windows, a cuboid center leg 17 and two cuboid outer legs 18, 19, is from a synopsis of FIGS. 1, 2, 5, 6 and 7 readily apparent.
  • both outer legs 18, 19 of the symmetrical double E-core law in the specified tolerances are each half as wide as its center leg 17, and the height of each of the two back plates 22 (FIGS. see also FIGS. 6 and 7) of the double E-core is in each case half as large as the width (i) of its center leg 17.
  • FIG. 3 An example of such a printed circuit board 21 with a perforated grid is shown in FIG. 3, and FIG. 4 shows a customer-specific height specification for the embodiment of the oscillating choke according to the invention belonging to the board 21 of FIG.
  • FIG. 5 schematically shows an embodiment of such a swivel throttle according to the invention placed on the board 21 of FIG. 3 in plan view
  • FIG. 6 shows schematically in side view a double E core belonging to the height specification of FIG. 4 of the embodiment of the swivel throttle according to the invention of Fig. 5
  • the average quotient of the longitudinal sectional area of the central limb 17 and the cross-sectional area of a core window of the double-E core is 3.3. Taking into account the tolerances one obtains 2.8 - 3.9. In other embodiments of the oscillating choke according to the invention, this ratio is greater or less, e.g. in variant 2 with 3.7. Taking into account the tolerances, the value obtained for the 2nd variant is 3.2 - 4.5, but in any case it is greater than 2.3.
  • the width i of the center leg 17 of the symmetrical double E core is in the range from 6.0 mm to 8.0 mm, but in other embodiments of the oscillation choke according to the invention also smaller or larger widths i of the center leg 17th of the symmetric double E-core are possible.
  • the depth t of the symmetrical double E-core there is a whole series of different embodiments of the oscillating choke according to the invention.
  • the depth t of the symmetric double E-nucleus may be e.g. be greater than 13 mm or even greater than 18 mm, in the range between 13 mm and 18.0 mm or in other embodiments of the swing throttle according to the invention also have other values.
  • the height h of the symmetrical double E-core is less than 15.25 mm and is in the range of 13 mm to 15 mm.
  • other embodiments of the oscillating choke according to the invention also have others, i. greater or smaller heights h of the symmetrical double E-core.
  • the total width a of the symmetrical double E-core is less than 26.5 mm and is in the range of 24 mm to 26 mm.
  • the width a of the symmetrical double-E core is greater than 26.5 mm or smaller than 24 mm.
  • the symmetrical double-E core consists of a manganese-zinc power ferrite.
  • the double E core or the double EQ core have two geometrically identical winding windows, a cuboid center leg or a round center leg and two parallelepiped outer limbs or two outer limbs concavely curved on the inside.
  • the width of the middle limb of the E-core or the EQ core is in the range of 6.0 mm to 8.0 mm, but in other embodiments of inventive swing chokes also smaller or larger widths of the center leg are possible.
  • the depth of the symmetrical E-core or EQ-core there are quite a number of different embodiments of inventive vibration throttles.
  • the depth of the symmetrical double E-core or the symmetrical double EQ core should be greater than 13 mm or even greater than 18 mm.
  • the height of the symmetrical double E core or of the symmetrical double EQ core is smaller than 15.25 mm and is in the range of 13 mm to 15 mm.
  • other embodiments of oscillating chokes according to the invention also have other, that is, larger or smaller heights of the symmetrical double E-core or the symmetrical double EQ-core.
  • the total width of the symmetrical double E core or of the symmetrical double EQ core is smaller than 26.5 mm and is in the range of 24 to 26 mm.
  • the width of the symmetrical double E-core or the symmetrical double EQ core is greater than 26.5 mm or smaller than 24 mm.
  • Fig. 7 schematically illustrates an embodiment of a swing damper according to the invention with a standing E-core.
  • the core rests with one of its broad sides 22 on the board 21 (see FIG. A related corner pin or pin 20 for insertion into the board 21 can be seen in the bottom left in Fig. 7.
  • the one Center leg and two outer legs have transferred.
  • the legs can be designed in a very different way.
  • the middle leg can be, for example, rectangular, rectangular with rounded corners, elliptical or circular.
  • the outer legs are usually shaped so that the outer winding contour, which is determined by the shape of the middle leg, is modeled.
  • double-core solutions there are also plate-core solutions.
  • Such a plate-core solution is e.g. An embodiment of a vibration throttle according to the invention with E-I core.
  • the E-I core solution consists of an E-core with longer legs, combined with a plate, with the air gap located exclusively in the E-core directly below the plate.
  • the above-mentioned embodiment of the oscillating inductor according to the invention with E-I core corresponds to the basic dimensions of the above described in detail double E-core solution.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Claims (22)

  1. Bobine oscillante dotée d'un noyau qui présente une aile centrale (17) et deux ailes extérieures (18, 19), caractérisée en ce que le noyau est conçu de telle sorte que la surface de la section longitudinale de l'aile centrale est supérieure à 90 mm2, cette section longitudinale étant à considérer comme la section qui s'étend parallèlement à la surface de base (22) du noyau sur lequel les ailes (17, 18, 19) reposent, et la section transversale est perpendiculaire à la section longitudinale de telle sorte qu'en coupe transversale, on puisse voir une forme au moins approximativement en forme de E formée par ladite surface de base (22) comme surface de dos du E et les trois ailes (17, 18, 19), le noyau se trouvant dans un volume de composant inférieur à 26,5 mm x 26,5 mm x 15 mm (largeur x profondeur x hauteur).
  2. Bobine oscillante selon la revendication 1, caractérisée en ce que le noyau présente deux fenêtres de noyau de même géométrie.
  3. Bobine oscillante selon la revendication 1 ou la revendication 2, caractérisée en ce que l'aile centrale (17) est rectangulaire, rectangulaire à coins arrondis, elliptique ou circulaire.
  4. Bobine oscillante selon la revendication 3, caractérisée par un double noyau constitué géométriquement de deux noyaux qui sont tournés l'un vers l'autre par leurs ailes (17, 18, 19).
  5. Bobine oscillante selon la revendication 4, caractérisée en ce que le noyau est configuré comme noyau symétrique en double E.
  6. Bobine oscillante selon la revendication 5, caractérisée en ce que les ailes extérieures (18, 19) sont de forme parallélépipédique.
  7. Bobine oscillante selon la revendication 4, caractérisée en ce que le noyau est configuré comme noyau symétrique en double EQ.
  8. Bobine oscillante selon la revendication 7, caractérisée en ce que le côté intérieur des ailes extérieures (18, 19) est courbé de manière concave.
  9. Bobine oscillante selon la revendication 3, caractérisée par un noyau du type indiqué, au-dessus des ailes duquel est disposée une plaque qui s'étend essentiellement en parallèle à ladite surface de base.
  10. Bobine oscillante selon la revendication 3, caractérisée en ce que le noyau est configuré en forme de noyau en E-I.
  11. Bobine oscillante selon la revendication 3, caractérisée en ce que les ailes extérieures sont formées de manière à former le contour extérieur d'enroulement qui est défini par la forme de l'aile centrale.
  12. Bobine oscillante selon la revendication 1, caractérisée en ce que la surface de la section longitudinale de l'aile centrale (17) est supérieure à 100 mm2.
  13. Bobine oscillante selon la revendication 12, caractérisée en ce que la surface de la section longitudinale de l'aile centrale (17) est supérieure à 110 mm2.
  14. Bobine oscillante selon la revendication 13, caractérisée en ce que la surface de la section longitudinale de l'aile centrale (17) est supérieure à 120 mm2.
  15. Bobine oscillante selon la revendication 5, caractérisée en ce que la largeur (i) de l'aile centrale (17) du noyau symétrique en double E est comprise dans la plage de 6,0 mm à 8 mm.
  16. Bobine oscillante selon l'une des revendications précédentes, caractérisée en ce que la profondeur (t) du noyau respectif est supérieure ou égale à 14,5 mm.
  17. Bobine oscillante selon l'une des revendications précédentes, caractérisée en ce que la largeur (a) du noyau respectif est inférieure à 26,5 mm.
  18. Bobine oscillante selon la revendication 17, caractérisée en ce que la largeur (a) du noyau est comprise dans la plage de 24 mm à 26 mm.
  19. Bobine oscillante selon l'une des revendications précédentes, caractérisée en ce que le noyau respectif est entouré de fil plein.
  20. Bobine oscillante selon l'une des revendications précédentes, caractérisée en ce que le noyau respectif est un noyau en ferrite.
  21. Bobine oscillante selon la revendication 20, caractérisée en ce que le noyau est constitué d'une ferrite de puissance au manganèse et au zinc.
  22. Bobine oscillante selon l'une des revendications précédentes, caractérisée en ce que le noyau est monté sur une platine (21) de telle sorte qu'il repose à plat sur la platine (21) par l'un de ses larges côtés (22).
EP02754873A 2001-07-11 2002-07-11 Bobine a inductance variable Expired - Fee Related EP1405322B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10133601 2001-07-11
DE10133601 2001-07-11
DE10216846 2002-04-16
DE2002116846 DE10216846B4 (de) 2002-04-16 2002-04-16 Spulenkörper
PCT/EP2002/007760 WO2003007318A2 (fr) 2001-07-11 2002-07-11 Bobine a inductance variable

Publications (2)

Publication Number Publication Date
EP1405322A2 EP1405322A2 (fr) 2004-04-07
EP1405322B1 true EP1405322B1 (fr) 2006-09-13

Family

ID=26009677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02754873A Expired - Fee Related EP1405322B1 (fr) 2001-07-11 2002-07-11 Bobine a inductance variable

Country Status (5)

Country Link
US (1) US6903648B2 (fr)
EP (1) EP1405322B1 (fr)
AT (1) ATE339769T1 (fr)
DE (2) DE50208151D1 (fr)
WO (1) WO2003007318A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010089413A1 (fr) 2009-02-09 2010-08-12 Epcos Ag Bobine à inductance variable haute fréquence

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7898379B1 (en) 2002-12-13 2011-03-01 Volterra Semiconductor Corporation Method for making magnetic components with N-phase coupling, and related inductor structures
US7498920B2 (en) 2002-12-13 2009-03-03 Volterra Semiconductor Corporation Method for making magnetic components with N-phase coupling, and related inductor structures
US7352269B2 (en) 2002-12-13 2008-04-01 Volterra Semiconductor Corporation Method for making magnetic components with N-phase coupling, and related inductor structures
US8299885B2 (en) 2002-12-13 2012-10-30 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US8237530B2 (en) * 2009-08-10 2012-08-07 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
US7965165B2 (en) * 2002-12-13 2011-06-21 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US8102233B2 (en) * 2009-08-10 2012-01-24 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
DE202005010234U1 (de) * 2005-06-29 2006-11-09 Vogt Electronic Components Gmbh Schwingdrossel für Lichtanwendungen
US7432793B2 (en) * 2005-12-19 2008-10-07 Bose Corporation Amplifier output filter having planar inductor
KR20070074059A (ko) * 2006-01-06 2007-07-12 삼성전자주식회사 자기 코어 및 이를 포함하는 인덕터, 변압기
US20080192960A1 (en) * 2007-02-09 2008-08-14 Nussbaum Michael B Hybrid Filter for Audio Switching Amplifier
WO2009114873A1 (fr) * 2008-03-14 2009-09-17 Volterra Semiconductor Corporation Inducteur convertisseur de tension ayant une valeur d’inductance négative
DE102008017314B4 (de) * 2008-04-04 2015-10-29 SUMIDA Components & Modules GmbH Induktives Bauelement und elektronische Schaltung zur Ansteuerung einer Leuchte
US8040212B2 (en) * 2009-07-22 2011-10-18 Volterra Semiconductor Corporation Low profile inductors for high density circuit boards
US8638187B2 (en) 2009-07-22 2014-01-28 Volterra Semiconductor Corporation Low profile inductors for high density circuit boards
US8299882B2 (en) 2009-07-22 2012-10-30 Volterra Semiconductor Corporation Low profile inductors for high density circuit boards
US9019063B2 (en) 2009-08-10 2015-04-28 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
US8674802B2 (en) 2009-12-21 2014-03-18 Volterra Semiconductor Corporation Multi-turn inductors
US8174348B2 (en) 2009-12-21 2012-05-08 Volterra Semiconductor Corporation Two-phase coupled inductors which promote improved printed circuit board layout
US7994888B2 (en) 2009-12-21 2011-08-09 Volterra Semiconductor Corporation Multi-turn inductors
US8975995B1 (en) * 2012-08-29 2015-03-10 Volterra Semiconductor Corporation Coupled inductors with leakage plates, and associated systems and methods
US11049643B1 (en) * 2017-09-26 2021-06-29 Universal Lighting Technologies, Inc. Combined U-core magnetic structure
CN111261368A (zh) * 2020-03-19 2020-06-09 昆山同凯电子有限公司 一种新型绕线共模电感器及其生产方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1466880A (en) * 1974-02-21 1977-03-09 Hirst H Laminations for electromagnetic devices
JPS615779Y2 (fr) * 1979-09-25 1986-02-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010089413A1 (fr) 2009-02-09 2010-08-12 Epcos Ag Bobine à inductance variable haute fréquence

Also Published As

Publication number Publication date
WO2003007318A2 (fr) 2003-01-23
DE20217539U1 (de) 2003-04-17
DE50208151D1 (de) 2006-10-26
EP1405322A2 (fr) 2004-04-07
WO2003007318B1 (fr) 2003-12-24
US6903648B2 (en) 2005-06-07
WO2003007318A3 (fr) 2003-11-27
ATE339769T1 (de) 2006-10-15
US20040140775A1 (en) 2004-07-22

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