EP1071101A1 - Magnetisches Bauelement - Google Patents
Magnetisches Bauelement Download PDFInfo
- Publication number
- EP1071101A1 EP1071101A1 EP00202555A EP00202555A EP1071101A1 EP 1071101 A1 EP1071101 A1 EP 1071101A1 EP 00202555 A EP00202555 A EP 00202555A EP 00202555 A EP00202555 A EP 00202555A EP 1071101 A1 EP1071101 A1 EP 1071101A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- windings
- parts
- magnetic
- magnetic component
- 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- Withdrawn
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Classifications
-
- 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
- H01F27/346—Preventing or reducing leakage fields
Definitions
- the invention relates to a magnetic component
- Magnetic components are also for use in high frequency clocked electronic circuits, e.g. Switching power supplies, provided.
- Switching power supplies e.g.
- a big problem is the high frequency switching operation caused electromagnetic interference. Is particularly serious this problem if the switching power supplies in monitors, televisions or in audio devices be installed, since the picture or sound quality can be influenced.
- Radio reception in the long and medium wave range is severely impaired because this frequency range in the vicinity of the switching frequencies or their first harmonics lies.
- the main sources of interference include the magnetic components, which are a very generate a strong magnetic stray field.
- a commonly used method to reduce this stray field is to with the help of a conductive foil, usually a copper tape, a short-circuit winding to place the coil or the transformer.
- a conductive foil usually a copper tape
- a short-circuit winding to place the coil or the transformer.
- Another efficient Method is to put the magnetic component in a closed shield case to install. The disadvantage of additional costs and weight comes here especially the poorer heat dissipation.
- WO 81/02648 (cf. FIG. 1 there) is a magnetic component with a U-core known, in each case one winding on two opposite core legs is applied. When a current flows through the windings, the generated ones compensate each other Stray fields partially mutually, so that the resulting stray field outside the magnetic Component is reduced.
- the object of the invention is to provide a further variant for a magnetic component create, in which the stray field generated outside the component is as minimal as possible.
- the object is achieved in that at least two electrically connected in series Windings are provided and that the magnetic component has a core, on which the windings are arranged so that there is a current flow through the At least windings the magnetic stray fields generated outside the component partially compensate, the core at least one inner leg part and at least has two outer leg parts and the windings on the inner leg wedge and / or the outer leg parts are arranged.
- a winding is divided in a suitable way, so that spatially separate winding parts are formed, which are no longer immediate are magnetically coupled, i.e. they no longer become of the same magnetic flux enforced.
- This enables effective compensation outside the magnetic component of the magnetic fields generated by the individual windings so that the resulting magnetic stray field outside the component is largely minimized is.
- the individual windings have essentially the same Inductance values so that an optimal one with symmetrical component structures Compensation of the generated stepping fields outside the magnetic component is achieved becomes. In the case of asymmetrical arrangements, however, there are regularly different inductance values to choose.
- two core parts are provided, the corresponding ones Have inner and outer leg parts.
- the inner leg parts each carry one Winding and for guiding a magnetic flux and between the two core parts a third core part with an I-shaped cross section is arranged.
- This configuration will preferably realized by means of an E core, between the core halves of which then in Cross-section I-shaped core part is arranged.
- Another embodiment variant of the invention provides that two inner core parts are provided are the inward corresponding inner and outer leg parts have that arranged on the outer sides of the inner core parts further core parts are the other corresponding with the inner and outer leg parts of the inner core parts Have inner and outer leg parts and that the windings on the Inner leg parts are arranged.
- the component core is preferably implemented using two E cores, i.e. by means of four superimposed ones E-core halves, whose inner and outer leg parts all face the inside of the Show component.
- a further reduction in the external stray field can be achieved in that the Outer leg parts of the core parts carry at least part of the windings. If then wear inner and outer leg parts of the core parts windings, the stray field reduction further optimized.
- the idea of the invention also covers the case that only the Wear outer leg wraps.
- the invention also relates to a core for one of the variants of a described above magnetic component.
- the magnetic component shown in Fig. 1 which is designed here as a coil, has a core consisting of two E cores 1 and 2.
- a winding 3 which is electrically in series with a winding 4 is switched, the winding 4 being wound on the inner leg (part) of the E core 2 is.
- the outer legs (parts) of the two E-cores 1 and 2 have no windings.
- the two E cores 1 and 2 are arranged so that the corresponding ones Inner and outer leg parts are opposite each other and that their axes are parallel to each other.
- the magnetic flux distribution in the E-core 2 corresponds to the magnetic flux distribution in E-core 1.
- the inner and outer legs of the E-core 2 flowing magnetic fluxes are directed in the opposite direction, that is, through the inner thigh of the E-core 2 flowing magnetic flux is directed from the bottom up and the partial magnetic fluxes in the outer legs of the E core 2 are from top to bottom directed below.
- FIG. 2 shows a preferred embodiment of the magnetic component according to the invention, a section through the magnetic component being shown here.
- a core with two E-core halves 10 and 11 is provided, between which a core part 12 with an I-shaped cross section is arranged.
- On the inner thigh wedge the E-core half 10 is a winding 13 and on the inner leg part of the E-core half 11, a winding 14 is arranged.
- the two windings are also electrically connected in series here.
- an air gap is provided in each case (reference numerals 15 and 16).
- a current I through the windings 13 and 14 (corresponds the arrangement of the windings 3 and 4 and the current flow according to FIG. 1), this has to Consequence that in the inner leg of the core half 10 a directed from top to bottom and magnetic flux pointing in the direction of the core half 11 is generated.
- the one about the Air gap 15 in the core part 12 entering magnetic flux is present here symmetrical core arrangement half in the direction of the left and right Outside leg wedges of the core halves 10 and 11 out.
- the thickness d of the core part 12 is as possible small to choose, the reduction in thickness d having its limit where the generated losses in the core part 12 are no longer acceptable or with the help of Windings 13 and 14 inductance values to be generated are no longer realizable.
- the embodiment according to FIG. 2 leads to a comparable reduction in the external stray magnetic field like the embodiment of FIG. 1.
- the embodiment 2 the advantage that the core parts 10, 11 and 12 used as Inexpensive mass-produced articles are available and for the core arrangement, for example only one E core and one core part with an I-shaped cross section are required.
- FIG. 3 A further improved reduction of the external stray field results in the magnetic Component according to FIG. 3.
- This has one composed of four E-core halves Core on First, one is made up of two core halves 20 and 21 in the usual way formed E-core provided, with an E-core half on the outside of the core half 20 22 of a second E core and on the outside of the E core half 21 accordingly the second core half 23 of the second E core is attached.
- An air gap is between the inner thigh parts of the two inner E-core halves 20 and 21, between the inner leg wedge of the E-core half 22 and the E-core half 20 and between the inner leg wedge of the E-core half 23 and the E-core half 21 is provided.
- Windings 24, 25, 26 electrically connected in series and 27 are so on the inner leg parts of all four E-core halves 20, 21, 22 and 23 arranged that magnetic fluxes through the inner leg parts of the E-core halves 20th and 21 are rectified. Magnetic fluxes also show through the inner thigh parts of the E-core halves 22 and 23 in the same direction.
- symmetrical core arrangement which has four identical E-core halves, are the same number of turns for those placed on the individual inner leg parts Windings 24 to 27 are provided.
- FIG. 4 shows a further variant of the invention and shows a magnetic component with an E-core 30, the inner leg of a winding 31 and the two outer legs Wear windings 32 and 33.
- the windings 31 to 33 are electrically in Series connected and wound so that magnetic fluxes through the windings 32 and 33 flow in the same direction (from bottom to top in Fig. 4) and that the corresponding magnetic flux through the middle winding 31 in the opposite direction (from top to bottom in Fig. 4) flows.
- This variant shows that the inventive concept can also be designed so that the outer legs (parts) of one branched core of a magnetic component according to the invention each have a part who can carry windings in series. This also opens up for the Design variants according to Figures 1 to 3 new design options.
- e-core parts instead of e-core parts, parts of comparable core types, e.g. of P cores can be used for the component according to the invention. Furthermore, the described Embodiments easily expandable in the usual way as transformers.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
- Fig. 1
- ein erfindungsgemäßes magnetisches Bauelement mit einem aus zwei E-Kernen bestehenden Kern,
- Fig. 2
- ein erfindungsgemäßes magnetisches Bauelement mit einem aus zwei E-Kern-Hälften und einem I-förmigen Kernteil bestehenden Kern,
- Fig. 3
- ein erfindungsgemäßes magnetisches Bauelement mit einem aus vier E-Kernhälften bestehenden Kern und
- Fig. 4
- ein erfindungsgemäßes magnetisches Bauelement mit einem Kern, bei dem auch auf den Außenschenkeln Wicklungen aufgebracht sind.
Claims (6)
- Magnetisches Bauelement mit mindestens zwei elektrisch in Reihe geschalteten Wicklungen (3, 4, 13, 14, 24-27, 31-33) und mit einem Kern (1, 2, 10, 11, 20-23, 30), auf dem die Wicklungen (3, 4, 13, 14, 24-27, 31-33) so angeordnet sind, daß sich bei einem Stromfluß durch die Wicklungen (3, 4, 13, 14, 24-27, 31-33) die erzeugten magnetischen Streufelder außerhalb des Bauelements wenigstens teilweise kompensieren, wobei der Kern mindestens ein Innenschenkelteil und mindestens zwei Außenschenkelteile aufweist und daß die Wicklungen (3, 4, 13, 14, 24-27, 31-33) auf dem Innenschenkelteil und/oder den Außenschenkelteilen angeordnet sind.
- Magnetisches Bauelement nach Anspruch 1,
dadurch gekennzeichnet,daß die einzelnen Wicklungen (3, 4, 13, 14, 24-27, 31-33) im wesentlichen gleiche Induktivitätswerte aufweisen. - Magnetisches Bauelement nach Anspruch 1 oder 2,
dadurch gekennzeichnet,daß zwei Kernteile (10, 11) vorgesehen sind, die korrespondierende Innen- und Außenschenkelteile aufweisen,daß die Innenschenkelteile jeweils eine Wicklung (13,14) tragen unddaß zur Führung eines magnetischen Flusses zwischen den beiden Kernteilen (10, 11) ein im Querschnitt I-förmiges drittes Kernteil (12) angeordnet ist. - Magnetisches Bauelement nach Anspruch 1,
dadurch gekennzeichnet,daß zwei innere Kernteile (20, 21) vorgesehen sind, die nach innen gerichtete korrespondierende Innen- und Außenschenkelteile aufweisen,daß auf den Außenseiten der inneren Kernteile (20, 21) weitere Kernteile (22, 23) angeordnet sind, die weitere mit den Innen- und Außenschenkelteilen der inneren Kernteile (20, 21) korrespondierende Innen- und Außenschenkelteile aufweisen unddaß die Wicklungen (24-27) auf den Innenschenkelteilen angeordnet sind. - Magnetisches Bauelement nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,daß die Außenschenkelteile des Kerns (30) mindestens einen Teil (32, 33) der Wicklungen (31-33) tragen. - Kern für ein magnetisches Bauelement nach einem der Ansprüche 1 bis 5
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934767 | 1999-07-23 | ||
DE19934767A DE19934767A1 (de) | 1999-07-23 | 1999-07-23 | Magnetisches Bauelement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1071101A1 true EP1071101A1 (de) | 2001-01-24 |
Family
ID=7915917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00202555A Withdrawn EP1071101A1 (de) | 1999-07-23 | 2000-07-17 | Magnetisches Bauelement |
Country Status (4)
Country | Link |
---|---|
US (1) | US6657529B1 (de) |
EP (1) | EP1071101A1 (de) |
JP (1) | JP2001068353A (de) |
DE (1) | DE19934767A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4811762A (en) * | 1986-07-15 | 1989-03-14 | Sulzer Brothers Limited | Weft yarn store for a loom |
EP1255346A2 (de) * | 2001-04-19 | 2002-11-06 | Philips Corporate Intellectual Property GmbH | Transformator mit integrierter Drossel |
EP1477996A1 (de) * | 2003-05-16 | 2004-11-17 | Marco Gaetano Gentili | Dreiphasige Drehstromdrosselspule mit verringerter elektromagnetischer Energie in der Umgebung |
EP2562772A3 (de) * | 2011-08-23 | 2017-07-19 | InTiCA Systems AG | Induktives Bauteil |
CN111048298A (zh) * | 2018-10-11 | 2020-04-21 | 丰田合成株式会社 | 输电线圈及无线供电装置 |
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ES2197020B1 (es) * | 2002-06-12 | 2005-03-01 | Diseño De Sistemas En Silicio, S.A. | Procedimiento y dispositivo de compensacion de campo magnetico de baja frecuencia en una unidad de acoplamiento de señal inductiva. |
DE10320716A1 (de) * | 2003-05-08 | 2004-12-02 | Siemens Ag | Anordnung von Leiterelementen |
US7598839B1 (en) * | 2004-08-12 | 2009-10-06 | Pulse Engineering, Inc. | Stacked inductive device and methods of manufacturing |
JP4744190B2 (ja) * | 2005-05-18 | 2011-08-10 | スミダコーポレーション株式会社 | 多出力高圧トランス |
JP4751266B2 (ja) * | 2006-02-09 | 2011-08-17 | 株式会社タムラ製作所 | リアクトル部品 |
US8091211B2 (en) | 2006-05-11 | 2012-01-10 | Tamura Corporation | Method for forming coil |
US9048022B2 (en) * | 2006-08-28 | 2015-06-02 | Youngtack Shim | Electromagnetically-countered transformer systems and methods |
JP5013848B2 (ja) * | 2006-12-22 | 2012-08-29 | 新電元工業株式会社 | スイッチング電源装置 |
US20090255922A1 (en) * | 2008-04-15 | 2009-10-15 | Honeywell International Inc. | System and method for reducing current exiting a roll through its bearings using balanced magnetic flux vectors in induction heating applications |
US8415595B2 (en) * | 2008-04-15 | 2013-04-09 | Honeywell International Inc. | System, apparatus, and method for induction heating using flux-balanced induction heating workcoil |
US7987581B2 (en) * | 2008-05-28 | 2011-08-02 | Flextronics Ap, Llc | High power manufacturing friendly transformer |
US9618037B2 (en) | 2008-08-01 | 2017-04-11 | Honeywell International Inc. | Apparatus and method for identifying health indicators for rolling element bearings |
US20100200570A1 (en) * | 2009-02-09 | 2010-08-12 | Honeywell International Inc. | System and method for reducing crosstalk between workcoils in induction heating applications |
US8620622B2 (en) * | 2009-04-02 | 2013-12-31 | Honeywell International Inc. | System and method for determining health indicators for impellers |
US8958995B2 (en) | 2009-04-02 | 2015-02-17 | Honeywell International Inc. | System and method for monitoring rotating and reciprocating machinery |
TW201113915A (en) * | 2009-10-14 | 2011-04-16 | Lerrel World Hi Tech Corp | Symmetrical parallel induction coils for electromagnetic devices |
US8473252B2 (en) | 2010-06-09 | 2013-06-25 | Honeywell International Inc. | System and method for conflict resolution to support simultaneous monitoring of multiple subsystems |
JP5474893B2 (ja) * | 2010-08-31 | 2014-04-16 | サムソン エレクトロ−メカニックス カンパニーリミテッド. | インダクター一体型トランスフォーマー |
WO2012067895A2 (en) * | 2010-11-17 | 2012-05-24 | Motor Excellence, Llc | Transverse and/or commutated flux system coil concepts |
US8963733B2 (en) | 2012-02-13 | 2015-02-24 | Honeywell International Inc. | System and method for blind fault detection for rotating machinery |
JP5934001B2 (ja) * | 2012-03-16 | 2016-06-15 | サンケン電気株式会社 | Dc−dcコンバータ |
JP2015201542A (ja) * | 2014-04-08 | 2015-11-12 | 株式会社神戸製鋼所 | リアクトル |
EP3135078A2 (de) | 2014-04-25 | 2017-03-01 | Philips Lighting Holding B.V. | Mit einer leistungsübertragungsantenne integrierter schaltmodus-netzteiltreiber |
JP6318874B2 (ja) * | 2014-06-03 | 2018-05-09 | 株式会社デンソー | リアクトル |
CN107210123A (zh) * | 2014-08-07 | 2017-09-26 | 达特茅斯学院托管理事会 | 包括低交流电阻箔绕组和有隙磁芯的磁性装置 |
CN204808997U (zh) | 2015-07-09 | 2015-11-25 | 台达电子企业管理(上海)有限公司 | 磁性组件及其适用的电源系统 |
CN106057431A (zh) * | 2016-02-16 | 2016-10-26 | 中兴通讯股份有限公司 | 磁集成器件及功率转换电路 |
KR101951329B1 (ko) * | 2017-07-26 | 2019-02-22 | 엘지전자 주식회사 | IM(Integrated magnetics) 인덕터 및 이를 활용하는 인터리브 PFC(Power Factor Correction) 부스트 컨버터 |
CN108288533B (zh) * | 2018-02-09 | 2019-11-05 | 台达电子企业管理(上海)有限公司 | 磁性元件、变换器以及电感 |
CN108777220B (zh) * | 2018-05-28 | 2022-01-21 | 台达电子工业股份有限公司 | 磁性元件及开关电源装置 |
CN109920620B (zh) * | 2019-03-28 | 2024-03-29 | 罗山县三通达电子科技有限公司 | 一种消除静电干扰的共模扼流圈 |
Citations (6)
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NL65173C (de) * | 1900-01-01 | |||
GB748230A (en) * | 1953-07-31 | 1956-04-25 | Wayne Kerr Lab Ltd | Improvements in or relating to transformers |
JPS6147605A (ja) * | 1984-08-14 | 1986-03-08 | Toshiba Corp | インダクタンス装置 |
JPH02209710A (ja) * | 1989-02-09 | 1990-08-21 | Matsushita Electric Ind Co Ltd | 誘導m結合リアクトル |
JPH07245222A (ja) * | 1994-03-04 | 1995-09-19 | Sony Corp | リアクター及びトランス |
JPH09237722A (ja) * | 1996-02-28 | 1997-09-09 | Tamura Seisakusho Co Ltd | 複合コイル |
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FR2454251B1 (fr) * | 1979-04-13 | 1987-06-12 | Klein Siegfried | Circuit blinde depourvu de fuites d'ondes electromagnetiques perturbatrices |
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US4488136A (en) * | 1981-05-18 | 1984-12-11 | Westinghouse Electric Corp. | Combination transformer with common core portions |
US4574222A (en) * | 1983-12-27 | 1986-03-04 | General Electric Company | Ballast circuit for multiple parallel negative impedance loads |
CA1258881A (fr) * | 1987-04-15 | 1989-08-29 | Leonard Bolduc | Transformateur-inducteur auto-regule a entrefers |
US4837497A (en) * | 1987-12-29 | 1989-06-06 | Gregory Leibovich | Variable transformer, reactor and method of their control |
-
1999
- 1999-07-23 DE DE19934767A patent/DE19934767A1/de not_active Withdrawn
-
2000
- 2000-07-17 EP EP00202555A patent/EP1071101A1/de not_active Withdrawn
- 2000-07-21 JP JP2000221192A patent/JP2001068353A/ja active Pending
- 2000-07-24 US US09/624,475 patent/US6657529B1/en not_active Expired - Fee Related
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NL65173C (de) * | 1900-01-01 | |||
GB748230A (en) * | 1953-07-31 | 1956-04-25 | Wayne Kerr Lab Ltd | Improvements in or relating to transformers |
JPS6147605A (ja) * | 1984-08-14 | 1986-03-08 | Toshiba Corp | インダクタンス装置 |
JPH02209710A (ja) * | 1989-02-09 | 1990-08-21 | Matsushita Electric Ind Co Ltd | 誘導m結合リアクトル |
JPH07245222A (ja) * | 1994-03-04 | 1995-09-19 | Sony Corp | リアクター及びトランス |
JPH09237722A (ja) * | 1996-02-28 | 1997-09-09 | Tamura Seisakusho Co Ltd | 複合コイル |
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PATENT ABSTRACTS OF JAPAN vol. 014, no. 507 (E - 0998) 6 November 1990 (1990-11-06) * |
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 01 31 January 1996 (1996-01-31) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4811762A (en) * | 1986-07-15 | 1989-03-14 | Sulzer Brothers Limited | Weft yarn store for a loom |
EP1255346A2 (de) * | 2001-04-19 | 2002-11-06 | Philips Corporate Intellectual Property GmbH | Transformator mit integrierter Drossel |
EP1255346A3 (de) * | 2001-04-19 | 2002-12-11 | Philips Corporate Intellectual Property GmbH | Transformator mit integrierter Drossel |
EP1477996A1 (de) * | 2003-05-16 | 2004-11-17 | Marco Gaetano Gentili | Dreiphasige Drehstromdrosselspule mit verringerter elektromagnetischer Energie in der Umgebung |
EP2562772A3 (de) * | 2011-08-23 | 2017-07-19 | InTiCA Systems AG | Induktives Bauteil |
CN111048298A (zh) * | 2018-10-11 | 2020-04-21 | 丰田合成株式会社 | 输电线圈及无线供电装置 |
Also Published As
Publication number | Publication date |
---|---|
DE19934767A1 (de) | 2001-01-25 |
US6657529B1 (en) | 2003-12-02 |
JP2001068353A (ja) | 2001-03-16 |
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