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EP1095383B1 - Ensemble inductif - Google Patents

Ensemble inductif Download PDF

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Publication number
EP1095383B1
EP1095383B1 EP00907631A EP00907631A EP1095383B1 EP 1095383 B1 EP1095383 B1 EP 1095383B1 EP 00907631 A EP00907631 A EP 00907631A EP 00907631 A EP00907631 A EP 00907631A EP 1095383 B1 EP1095383 B1 EP 1095383B1
Authority
EP
European Patent Office
Prior art keywords
induction
magnetic
magnetic circuit
leg
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.)
Expired - Lifetime
Application number
EP00907631A
Other languages
German (de)
English (en)
Other versions
EP1095383A1 (fr
Inventor
Aloys Wobben
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1095383A1 publication Critical patent/EP1095383A1/fr
Application granted granted Critical
Publication of EP1095383B1 publication Critical patent/EP1095383B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented

Definitions

  • the invention relates to an inductance arrangement or the construction of Inductors, chokes, transformers with very high power density.
  • Chokes are common embodiments of inductance arrangements.
  • a such choke consists of a magnetic and an electrical circuit, the latter regularly consists of a copper winding.
  • the magnetic circle Depending on the application, it consists of layered dynamo sheets smaller and medium frequencies, at higher frequencies e.g. made of ferrite.
  • Such a choke is usually made of two of each copper winding enclosed magnetically conductive legs, which are magnetic through yokes are coupled together, wherein between a leg and a yoke each according to the application, an air gap can be provided.
  • Magnetic induction is the determining factor in the design of inductive components or transformers.
  • An increase in inductance Induction B always means a higher power density.
  • GB-A-887 081 discloses an induction assembly consisting of a magnetic Circle, wherein the magnetic circuit has at least two legs which through layered packages are formed, with individual packets of the thigh for a Area of an electrical circuit are shifted from each other so that the Surface of the magnetic circuit is increased, and wherein the legs through at least one yoke are connected.
  • inductance B An increase of induction B by about 10% also leaves it 10% higher Number of turns too. However, the inductance increases by about 121% because - see Formula 1 - this increases in proportion to the square of the number of turns.
  • Figure 1 shows the basic structure of an induction arrangement using the example of a Throttle 1.
  • This consists in the example shown of a magnetic circuit 8, two electrical circuits 2 and depending on the application, the magnetic Circle also an air gap 3 on.
  • the magnetic circuit in turn consists of four Elements, namely two yokes 5 and two legs 4.
  • the electrical circuits 2 are regularly made of a copper winding or a other metal winding.
  • the thighs and yokes can be layered depending on the application Dynamo plates 7 at lower and middle frequencies exist, at higher Frequencies preferably also of ferrite or iron powder.
  • the magnetic circuits do not formed only from dynamo sheets, but these dynamo plates also form one compact rectangular or square core.
  • This core is from close electrical circuit, so the copper winding surrounded, so that the magnetic core or surrounded by the magnetic circuit leg of the Environment are isolated and therefore unable to heat to dissipate to a sufficient extent.
  • the thighs are removed from the magnetic circuit.
  • FIG. 3 shows an induction arrangement according to the invention using the example of a throttle.
  • the leg 4 surrounded by the copper winding 2 consist of several sheets 7, which are shifted from each other.
  • the Leg plates 7 offset by 90 ° to the longitudinal direction of a yoke 5, so that by the displacement of the legs against each other the original Distance between adjacent legs is maintained.
  • the laminated cores 7, which may be about 2 - 10 mm thick, is the surface the leg 4 is drastically enlarged on the sides. The enlargement of the surface and thus the cooling area by a factor of five to fifteen is easily achievable.
  • There the legs 4 are still surrounded by the copper winding 2, arise very effective cooling channels, which are capable of a classic heat sink are to dissipate the heat that arises in the thighs by losses.
  • the induction B can be increased without that here the leg temperatures reach critical areas.
  • An increase in the Induction B by, for example, 10% also allows a 10% higher number of turns (see Equation 2).
  • a reduction of the legs also means a reduction of Copper winding lengths and thus also sets a significantly lower copper consumption.
  • FIG. 4 shows the comparison of the required amount of iron (weight) of the iron core of a throttle.
  • the required iron volume Fe Vol (weight) is plotted on the Y axis.
  • the X-axis shows the relative magnetic induction B, where B st is the induction B in conventional design (standard) and B N is the induction with new cooling.
  • B st is the induction B in conventional design (standard)
  • B N is the induction with new cooling.
  • the dashed part B1 of the curve applies in conventional design, the solid part B2 with a new type of cooling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • General Induction Heating (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polarising Elements (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Radiation-Therapy Devices (AREA)
  • Thermistors And Varistors (AREA)
  • Amplifiers (AREA)

Claims (3)

  1. Ensemble inductif (1) se composant d'un circuit magnétique et d'un circuit électrique, le circuit magnétique (8) comprenant au moins deux branches (4) reliées par au moins une culasse (5) et formées par des tôles empilées (7) et le circuit électrique (2) comprenant au moins un enroulement métallique, de préférence un enroulement en cuivré, différentes tôles (7) ou plusieurs paquets de tôles des branches (4) étant décalés entre eux dans la zone du circuit électrique de telle manière que la surface du circuit magnétique (8) est agrandie et les tôles empilées (7) ou les paquets de tôles d'au moins une branche (4) étant orientés le long de plans, qui sont placés perpendiculairement à un plan projeté par l'au moins une branche (4) et la culasse (5), et parallèlement à l'axe de rotation de l'enroulement métallique.
  2. Ensemble inductif selon la revendication 1, caractérisé en ce qu'entre l'au moins une branche (4) et le circuit électrique (2) est(sont) formé(s) un canal ou plusieurs canaux de refroidissement (6).
  3. Transformateur ou bobine avec un ensemble inductif selon l'une des revendications précédentes, caractérisé en ce que sont formés au moins deux circuits électriques (2), qui sont couplés entre eux par le circuit magnétique (8).
EP00907631A 1999-05-03 2000-02-25 Ensemble inductif Expired - Lifetime EP1095383B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19920268 1999-05-03
DE19920268A DE19920268C1 (de) 1999-05-03 1999-05-03 Induktivitätsanordnung
PCT/EP2000/001582 WO2000067265A1 (fr) 1999-05-03 2000-02-25 Ensemble inductif

Publications (2)

Publication Number Publication Date
EP1095383A1 EP1095383A1 (fr) 2001-05-02
EP1095383B1 true EP1095383B1 (fr) 2003-05-02

Family

ID=7906794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00907631A Expired - Lifetime EP1095383B1 (fr) 1999-05-03 2000-02-25 Ensemble inductif

Country Status (12)

Country Link
US (1) US6628191B1 (fr)
EP (1) EP1095383B1 (fr)
JP (1) JP2002543606A (fr)
AT (1) ATE239297T1 (fr)
AU (1) AU738507B2 (fr)
BR (1) BR0006092A (fr)
CA (1) CA2332363C (fr)
DE (2) DE19920268C1 (fr)
DK (1) DK1095383T3 (fr)
ES (1) ES2194703T3 (fr)
PT (1) PT1095383E (fr)
WO (1) WO2000067265A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6085904B2 (ja) * 2012-05-31 2017-03-01 ブラザー工業株式会社 ノイズ低減装置、電源装置、及びノイズ低減装置におけるコアの配置方法
JP6284261B2 (ja) * 2012-10-11 2018-02-28 タカオカ化成工業株式会社 モールド変圧器及びモールド変圧器に用いる鉄心の組み立て方法
US9414520B2 (en) * 2013-05-28 2016-08-09 Hamilton Sundstrand Corporation Immersion cooled motor controller
WO2018047372A1 (fr) * 2016-09-08 2018-03-15 三菱電機株式会社 Bobine d'arrêt

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3077570A (en) 1959-01-28 1963-02-12 Gen Electric Inductive device
GB887081A (en) 1959-06-05 1962-01-17 Ass Elect Ind Improvements in and relating to laminated cores
DE2103523A1 (de) 1971-01-26 1972-08-17 Pfister, Karl Ingolf, 3504 Kaufungen Blechpaket für dynamo-elektrische Einrichtungen wie z.B. elektrische Maschinen, Transformatoren oder dergleichen
US4080725A (en) * 1974-06-26 1978-03-28 Thomas & Skinner, Inc. Ferromagnetic core with variable shunt air gap and method of making it
GB1529967A (en) * 1977-04-28 1978-10-25 Bicc Ltd Magnetic cores
US4283842A (en) * 1979-01-04 1981-08-18 Westinghouse Electric Corp. Method of making an electrical inductive apparatus
US4523169A (en) * 1983-07-11 1985-06-11 General Electric Company Dry type transformer having improved ducting
DE3505120C1 (de) * 1985-02-14 1986-10-09 Hans O. Habermann Transformatoren -Elektroapparate, 7898 Lauchringen Transformator
US5097241A (en) * 1989-12-29 1992-03-17 Sundstrand Corporation Cooling apparatus for windings
JPH0722258A (ja) * 1993-06-30 1995-01-24 Matsushita Electric Ind Co Ltd リアクタ及びその製造方法
JPH10163022A (ja) 1996-12-03 1998-06-19 Minebea Co Ltd 放熱面積を拡大した積層組立体
SE512419C2 (sv) * 1997-11-27 2000-03-13 Abb Ab Transformator/reaktor samt förfarande vid tillverkning av en sådan

Also Published As

Publication number Publication date
WO2000067265A1 (fr) 2000-11-09
JP2002543606A (ja) 2002-12-17
BR0006092A (pt) 2001-03-20
HK1036874A1 (en) 2002-01-18
DE50001942D1 (de) 2003-06-05
CA2332363C (fr) 2003-11-11
ES2194703T3 (es) 2003-12-01
PT1095383E (pt) 2003-09-30
DK1095383T3 (da) 2003-08-18
CA2332363A1 (fr) 2000-11-09
DE19920268C1 (de) 2000-10-19
ATE239297T1 (de) 2003-05-15
EP1095383A1 (fr) 2001-05-02
AU2915100A (en) 2000-11-17
AU738507B2 (en) 2001-09-20
US6628191B1 (en) 2003-09-30

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