ES253561U - Ferromagnetic core having a gap - Google Patents

Ferromagnetic core having a gap

Info

Publication number
ES253561U
ES253561U ES1979253561U ES253561U ES253561U ES 253561 U ES253561 U ES 253561U ES 1979253561 U ES1979253561 U ES 1979253561U ES 253561 U ES253561 U ES 253561U ES 253561 U ES253561 U ES 253561U
Authority
ES
Spain
Prior art keywords
gap
glass particles
ferromagnetic core
ferromagnetic material
gaps
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.)
Granted
Application number
ES1979253561U
Other languages
Spanish (es)
Other versions
ES253561Y (en
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES253561U publication Critical patent/ES253561U/en
Application granted granted Critical
Publication of ES253561Y publication Critical patent/ES253561Y/en
Expired legal-status Critical Current

Links

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
    • 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
    • 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
    • H01F2027/348—Preventing eddy currents

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

A device, particularly a transformer, comprises a ferromagnetic core 1 having a gap 7 which is divided into a plurality of partial gaps 71-74, filled with a solid, non-ferromagnetic material consisting of a glue and glass particles, the gaps being magnetically arranged in series by means of plates 13, 15, 17 of a ferromagnetic material. The dimensions of the glass particles determine the gap widths. Division of the air gap helps to limit the stray field 9 that penetrates the aluminium foil primary winding 3 wound on the ferrite core 1. The secondary coil 5 is of copper wire.
ES1979253561U 1978-11-22 1979-11-20 A DEVICE THAT HAS A FERROMAGNETIC NUCLEUS FORMING A MAGNETIC CIRCUIT INTERRUPTED BY AT LEAST ONE ENTREHIE-RRO Expired ES253561Y (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7811481A NL7811481A (en) 1978-11-22 1978-11-22 TRANSFORMER WITH AIR SLOT.

Publications (2)

Publication Number Publication Date
ES253561U true ES253561U (en) 1980-12-16
ES253561Y ES253561Y (en) 1981-06-01

Family

ID=19831933

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1979253561U Expired ES253561Y (en) 1978-11-22 1979-11-20 A DEVICE THAT HAS A FERROMAGNETIC NUCLEUS FORMING A MAGNETIC CIRCUIT INTERRUPTED BY AT LEAST ONE ENTREHIE-RRO

Country Status (7)

Country Link
JP (1) JPS5577115A (en)
DE (1) DE2946734A1 (en)
ES (1) ES253561Y (en)
FR (1) FR2442496A1 (en)
GB (1) GB2037089A (en)
IT (2) IT1163733B (en)
NL (1) NL7811481A (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828985C1 (en) * 1988-08-26 1989-09-14 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Hollaend. Stiftung & Co Kg, 8510 Fuerth, De
US6211765B1 (en) 1990-02-27 2001-04-03 Tdk Corporation Coil device
JP2714997B2 (en) * 1990-10-02 1998-02-16 ティーディーケイ株式会社 Coil device
JP2699021B2 (en) * 1990-10-02 1998-01-19 ティーディーケイ株式会社 Coil device
JP2699020B2 (en) * 1990-10-02 1998-01-19 ティーディーケイ株式会社 Coil device
EP0444521B1 (en) * 1990-02-27 1996-07-24 TDK Corporation Coil device
US5210514A (en) * 1990-08-17 1993-05-11 Tdk Corporation Coil device
US5789907A (en) * 1991-03-29 1998-08-04 Top Gulf Coast Corporation Variable impedence transformer
US5376912A (en) * 1992-03-12 1994-12-27 Casagrande; Serge Combined transformer and inductor
DE19833190A1 (en) * 1998-07-23 2000-01-27 Bayerische Motoren Werke Ag ignition coil
US6417753B1 (en) 2000-02-17 2002-07-09 Koninklijke Philips Electronics N.V. Planar magnetic device without center core leg
DE10141343A1 (en) * 2001-08-23 2003-03-13 Siemens Ag High frequency device, used in the production of telecommunications systems, comprises a magnetic core having thin layers made from soft magnetic material
PT1501106E (en) 2003-07-23 2011-04-29 Sts Spezial Transformatoren Stockach Gmbh & Co Ferrite core for inductive element
ATE442656T1 (en) * 2004-03-29 2009-09-15 Dartmouth College FOIL WINDING WITH LOW AC RESISTANCE FOR MAGNETIC COILS ON CORE WITH GAPS
DE102006026466B3 (en) * 2006-06-01 2007-12-06 Siemens Ag Inductive electrical element particularly transformer, has winding conductor, particularly formed as filament, which is wounded partly around ferromagnetic core for formation of winding
US7746211B2 (en) * 2006-12-27 2010-06-29 General Electric Company Lamp transformer assembly
US7746001B2 (en) * 2007-04-27 2010-06-29 Plasma Technics, Inc. Plasma generator having a power supply with multiple leakage flux coupled transformers
MY155185A (en) * 2009-06-15 2015-09-15 Univ Northwest Segmented core transformer
DE202011004121U1 (en) * 2011-03-17 2011-05-26 Roland Pechan GmbH & Co. KG, 04827 Inductive passive component, in particular throttle
EP2530688A1 (en) * 2011-05-26 2012-12-05 Franc Zajc Flat band winding for an inductor core
US9287030B2 (en) 2011-05-26 2016-03-15 Franc Zajc Multi gap inductor core
DE102013225875A1 (en) * 2013-12-13 2015-07-02 Siemens Aktiengesellschaft Guiding a magnetic flux

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR494559A (en) * 1917-11-20 1919-09-12 Westinghouse Electric Corp Force limiting reactance coils
NL23169C (en) * 1927-03-23
US3187284A (en) * 1957-06-24 1965-06-01 Philips Corp Variable inductance device
DE1245487B (en) * 1963-05-24 1967-07-27 Westinghouse Electric Corp Process for the production of a laminated iron core for transformers and reactors
FR1559121A (en) * 1968-01-26 1969-03-07
CH483707A (en) * 1968-06-10 1969-12-31 Bbc Brown Boveri & Cie Three-phase choke coil with magnetic core
DE2130773A1 (en) * 1970-07-02 1972-04-13 Iskra Zd Za Avtomatizacijo V Z Adhesive for gluing with a precisely determined distance
DE2718274A1 (en) * 1977-04-25 1978-10-26 Vogt Gmbh & Co Kg PROCESS FOR PRODUCING DEFINED AIR GAP IN MAGNETIC CIRCLES

Also Published As

Publication number Publication date
JPS5577115A (en) 1980-06-10
GB2037089A (en) 1980-07-02
FR2442496A1 (en) 1980-06-20
DE2946734A1 (en) 1980-06-04
ES253561Y (en) 1981-06-01
IT1163733B (en) 1987-04-08
IT7923178V0 (en) 1979-11-19
NL7811481A (en) 1980-05-27
IT7927407A0 (en) 1979-11-19

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Legal Events

Date Code Title Description
FD1K Utility model lapsed

Effective date: 19980504