EP1501106B1 - Ferritkern für ein Induktivitätsbauteil - Google Patents
Ferritkern für ein Induktivitätsbauteil Download PDFInfo
- Publication number
- EP1501106B1 EP1501106B1 EP03016771A EP03016771A EP1501106B1 EP 1501106 B1 EP1501106 B1 EP 1501106B1 EP 03016771 A EP03016771 A EP 03016771A EP 03016771 A EP03016771 A EP 03016771A EP 1501106 B1 EP1501106 B1 EP 1501106B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- inductive element
- winding
- ferrite core
- sides
- 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 - Lifetime
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Classifications
-
- 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
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
Definitions
- the invention relates to a core for an inductance component, with at least two mutually parallel legs, which are connected together at the ends by a yoke, according to the features of the preamble of claim 1.
- the invention relates to a core for a so-called resonance choke preferably for the use in switching power supplies.
- the core can be sheared by inserting several air gaps.
- z. B. used a segmented toroid, in which alternated air gaps with toroidal segments. Disadvantages are the high price, as there is no finished multipart ring cores to buy and the gluing of the parts is quite difficult. In addition, it is difficult to distance to the strand, otherwise the winding window is getting smaller and the deposit of the winding is no longer possible.
- the illustrated core has the features of the preamble of claim 1. This is a reduction of noise caused by the laminated iron core, with the magnetic path at one or more locations is interrupted by an air gap or non-magnetic webs and the non-magnetic webs are cemented with a good adhesive hardenable mass to the interruption point facing sheet ends of the core.
- the production of such a laminated iron core with cemented sheet ends is relatively complicated and expensive.
- GB 2 037 089 A discloses a device (transformer) having a ferromagnetic core.
- This core has on one side a one-sided gap, which is divided into a plurality of sub-columns, which are filled with a solid, non-ferromagnetic material (adhesive and glass particles).
- the columns are arranged magnetically by arranging ferromagnetic material in succession.
- the size of the glass particles determines the width of the column.
- Areas of the air gaps delimit the stray field which penetrates the aluminum foil of the primary side of the transformer, which is wound around the ferrite core.
- the secondary core is made of copper wire.
- This invention has the disadvantage that the air gap is only one-sided and there is a higher noise than in a core according to the present development.
- the GB 1 229 437 A discloses a magnetic core having a three-dimensional triangular or round shape with three slugs.
- the individual segments of the slugs are made of laminated sheets and the yokes of triangular shaped laminated sheets.
- the US 2002/0132136 A1 discloses a magnetic core consisting of a plurality of plates separated by insulating material
- the object of the invention is to provide a core for an inductance component and a corresponding inductive component with which a high power density of the inductance can be achieved and which is relatively simple and inexpensive to produce.
- the ferrite core should be particularly suitable for use in resonance chokes.
- the core is a ferrite core, in which the legs are cylindrical, and the individual segments are formed as pressed ferrite tablets with a round or oval cross-section. The segments are each separated by an insulator.
- the insulators are made of a material with a permeability ⁇ ⁇ 1. They act as "air gaps" between the individual segments or sections of the legs.
- the legs have a round or oval cross-section.
- a round or oval shape of the portions of the legs to be wound results in minimal Cu losses and is easy to wind.
- the yoke has a rectangular cross-section, so that the ends of the legs can be easily attached to a flat surface of the yoke.
- the ferrite core according to another embodiment of the invention as E-shaped core with three legs, which are connected by a yoke.
- the longitudinal axes of the legs are all in a common plane.
- the longitudinal axes of the legs lie at least partially in different planes, so that, seen from above, a triangular arrangement of the legs results.
- An inductance component produced with the ferrite core according to the invention is preferably a resonance choke, wherein the legs are provided with a preferably single-layer winding.
- the winding consists of HF stranded wire.
- an insulator can be arranged between the respective leg of the ferrite core and the winding, so that there is a distance between the winding and the core or the respective air gaps. But it can also be used a bobbin which surrounds the core at least in the region of the winding.
- Another advantage of the invention is that the ratio of winding window width to winding window height can be optimally adapted to the particular application, for example, to allow a single-layer winding. This results in small Cu losses due to current displacement and a low-capacitance component.
- the winding window height can be adjusted so that you can set an ideal distance between the strand and air gaps.
- the preferably cylindrical segments of the legs are to produce with a relatively simple tool and as such cheap.
- the pressed "ferrite tablets” require little or no post-processing before they can be glued together.
- the segments are easy to glue and easy to wrap (layer wrap). You can even wrap directly on the core.
- the concept of the composite ferrite core is very variable, because with two to three segment sizes, ie different diameters and heights, you can do many different chokes.
- the design of the ferrite core according to the invention can be relatively easily provided with a heat sink, so as to realize the highest possible power density. Both the winding and the core itself provide enough "attack surface" for a passive heat sink.
- the two legs 1, 2 carry a winding 7, as in FIG. 1 indicated directly on the slugs 1, 2 can be wound.
- a single-layer winding 7 is used.
- the winding 7 is not applied directly to the legs 1, 2. Instead, the legs 1, 2 are first with a Insulating material 8 wrapped on which insulating material 8 then the winding 7 is applied.
- FIG. 1 the corresponding winding window height H and winding window width B is indicated.
- the ratio winding window width B to winding window height H can be very easily changed and adapted to the particular circumstances.
Landscapes
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Compounds Of Iron (AREA)
- Soft Magnetic Materials (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT03016771T PT1501106E (pt) | 2003-07-23 | 2003-07-23 | Núcleo de ferrite para um elemento de indutância |
ES03016771T ES2359958T3 (es) | 2003-07-23 | 2003-07-23 | Núcleo de ferrita para una inductancia. |
AT03016771T ATE497627T1 (de) | 2003-07-23 | 2003-07-23 | Ferritkern für ein induktivitätsbauteil |
DK03016771.2T DK1501106T3 (da) | 2003-07-23 | 2003-07-23 | Ferritkerne til et induktivt element |
EP03016771A EP1501106B1 (de) | 2003-07-23 | 2003-07-23 | Ferritkern für ein Induktivitätsbauteil |
DE50313456T DE50313456D1 (de) | 2003-07-23 | 2003-07-23 | Ferritkern für ein Induktivitätsbauteil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03016771A EP1501106B1 (de) | 2003-07-23 | 2003-07-23 | Ferritkern für ein Induktivitätsbauteil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1501106A1 EP1501106A1 (de) | 2005-01-26 |
EP1501106B1 true EP1501106B1 (de) | 2011-02-02 |
Family
ID=33483931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03016771A Expired - Lifetime EP1501106B1 (de) | 2003-07-23 | 2003-07-23 | Ferritkern für ein Induktivitätsbauteil |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1501106B1 (da) |
AT (1) | ATE497627T1 (da) |
DE (1) | DE50313456D1 (da) |
DK (1) | DK1501106T3 (da) |
ES (1) | ES2359958T3 (da) |
PT (1) | PT1501106E (da) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012222224A1 (de) | 2012-12-04 | 2014-06-05 | SUMIDA Components & Modules GmbH | Magnetische Kerne und Verfahren zu deren Herstellung |
DE102013201312A1 (de) | 2013-01-28 | 2014-07-31 | Robert Bosch Gmbh | Kern für ein induktives Bauelement und Verfahren zur Herstellung eines Kerns für ein induktives Bauelement |
DE102013208058A1 (de) | 2013-05-02 | 2014-11-06 | Sts Spezial-Transformatoren-Stockach Gmbh & Co. Kg | Magnetisch vorgespannte Drossel |
EP2801987A1 (de) | 2013-05-10 | 2014-11-12 | STS Spezial-Transformatoren-Stockach GmbH & Co. KG | Induktives Bauteil |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006026466B3 (de) * | 2006-06-01 | 2007-12-06 | Siemens Ag | Induktives elektrisches Element, insbesondere Transformator, Übertrager, Drossel, Filter und Wickelgut |
PL2395517T3 (pl) | 2010-06-09 | 2014-01-31 | Sts Spezial Transf Stockach Gmbh & Co | Element indukcyjny z rdzeniem magnetycznym |
ES2432492T3 (es) | 2010-06-09 | 2013-12-03 | Sts Spezial- Trasformatoren- Stockach Gmbh & Co. | Carcasa para la construcción de núcleos magnéticos cilíndricos separados por el entrehierro para componentes inductivos |
WO2012073246A1 (en) * | 2010-12-02 | 2012-06-07 | D. M. Benatav Ltd. | Magnetic core, methods of designing and constructing thereof and devices including same |
DE202011004121U1 (de) * | 2011-03-17 | 2011-05-26 | Roland Pechan GmbH & Co. KG, 04827 | Induktives passives Bauelement, insbesondere Drossel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020132136A1 (en) * | 2001-03-15 | 2002-09-19 | Roshen Waseem A. | Low loss, high frequency composite magnetic material and methods of making the same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1245487B (de) | 1963-05-24 | 1967-07-27 | Westinghouse Electric Corp | Verfahren zur Herstellung eines geblechten Eisenkernes fuer Transformatoren und Drosselspulen |
CH483707A (de) | 1968-06-10 | 1969-12-31 | Bbc Brown Boveri & Cie | Dreiphasen-Drosselspule mit Magnetkern |
NL7811481A (nl) | 1978-11-22 | 1980-05-27 | Philips Nv | Transformator met luchtspleet. |
-
2003
- 2003-07-23 AT AT03016771T patent/ATE497627T1/de active
- 2003-07-23 DE DE50313456T patent/DE50313456D1/de not_active Expired - Lifetime
- 2003-07-23 PT PT03016771T patent/PT1501106E/pt unknown
- 2003-07-23 DK DK03016771.2T patent/DK1501106T3/da active
- 2003-07-23 ES ES03016771T patent/ES2359958T3/es not_active Expired - Lifetime
- 2003-07-23 EP EP03016771A patent/EP1501106B1/de not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020132136A1 (en) * | 2001-03-15 | 2002-09-19 | Roshen Waseem A. | Low loss, high frequency composite magnetic material and methods of making the same |
Non-Patent Citations (1)
Title |
---|
BOYLE J.W.; HILL-COTTINGHAM R.: "HF magnetics for high power resonant switching converters", IEE COLLOQUIUM ON RESONANT SYSTEMS (DIGEST NO.95/013), 1995, LONDON, UK, pages 4/1 - 4/7, XP006528741 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012222224A1 (de) | 2012-12-04 | 2014-06-05 | SUMIDA Components & Modules GmbH | Magnetische Kerne und Verfahren zu deren Herstellung |
WO2014086886A1 (de) | 2012-12-04 | 2014-06-12 | SUMIDA Components & Modules GmbH | Magnetische kerne und verfahren zu deren herstellung |
DE102013201312A1 (de) | 2013-01-28 | 2014-07-31 | Robert Bosch Gmbh | Kern für ein induktives Bauelement und Verfahren zur Herstellung eines Kerns für ein induktives Bauelement |
DE102013208058A1 (de) | 2013-05-02 | 2014-11-06 | Sts Spezial-Transformatoren-Stockach Gmbh & Co. Kg | Magnetisch vorgespannte Drossel |
WO2014177137A1 (de) | 2013-05-02 | 2014-11-06 | Sts Spezial-Transformatoren-Stockach Gmbh & Co. Kg | Magnetisch vorgespannte drossel |
EP2801987A1 (de) | 2013-05-10 | 2014-11-12 | STS Spezial-Transformatoren-Stockach GmbH & Co. KG | Induktives Bauteil |
DE102013208653A1 (de) | 2013-05-10 | 2014-11-13 | Sts Spezial-Transformatoren-Stockach Gmbh & Co. Kg | Induktives Bauteil |
Also Published As
Publication number | Publication date |
---|---|
DE50313456D1 (de) | 2011-03-17 |
DK1501106T3 (da) | 2011-05-23 |
EP1501106A1 (de) | 2005-01-26 |
PT1501106E (pt) | 2011-04-29 |
ES2359958T3 (es) | 2011-05-30 |
ATE497627T1 (de) | 2011-02-15 |
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