FR2451092A1 - IMPROVED INDUCTIVE DEVICE - Google Patents

IMPROVED INDUCTIVE DEVICE

Info

Publication number
FR2451092A1
FR2451092A1 FR8005001A FR8005001A FR2451092A1 FR 2451092 A1 FR2451092 A1 FR 2451092A1 FR 8005001 A FR8005001 A FR 8005001A FR 8005001 A FR8005001 A FR 8005001A FR 2451092 A1 FR2451092 A1 FR 2451092A1
Authority
FR
France
Prior art keywords
core
inductive device
improved inductive
magnetically permeable
encapsulating
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.)
Pending
Application number
FR8005001A
Other languages
French (fr)
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2451092A1 publication Critical patent/FR2451092A1/en
Pending legal-status Critical Current

Links

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
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/08—Cores, Yokes, or armatures made from powder
    • 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
    • H01F41/005—Impregnating or encapsulating
    • 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
    • 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
    • H01F2017/048—Fixed inductances of the signal type  with magnetic core with encapsulating core, e.g. made of resin and magnetic powder

Abstract

DISPOSITIF PRESENTANT PEU D'INTERFERENCE ELECTROMAGNETIQUE. IL COMPREND UN NOYAU 13 MAGNETIQUEMENT PERMEABLE; AU MOINS UN JEU D'ENROULEMENTS INDUCTIFS 11, 12 DISPOSES AUTOUR DU NOYAU; ET UNE SUBSTANCE MAGNETIQUEMENT PERMEABLE, MOULEE 10 ENCAPSULANT CE NOYAU ET TOUT ENROULEMENT PRESENT SUR CE NOYAU. APPLICATION AUX CIRCUITS ELECTRIQUES.DEVICE PRESENTING LITTLE ELECTROMAGNETIC INTERFERENCE. IT INCLUDES A MAGNETICALLY PERMEABLE CORE 13; AT LEAST ONE SET OF INDUCTIVE WINDINGS 11, 12 ARRANGED AROUND THE CORE; AND A MAGNETICALLY PERMEABLE SUBSTANCE, MOLDED 10 ENCAPSULATING THIS CORE AND ANY COIL PRESENT ON THIS CORE. APPLICATION TO ELECTRICAL CIRCUITS.

FR8005001A 1979-03-09 1980-03-06 IMPROVED INDUCTIVE DEVICE Pending FR2451092A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1893379A 1979-03-09 1979-03-09

Publications (1)

Publication Number Publication Date
FR2451092A1 true FR2451092A1 (en) 1980-10-03

Family

ID=21790493

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8005001A Pending FR2451092A1 (en) 1979-03-09 1980-03-06 IMPROVED INDUCTIVE DEVICE

Country Status (4)

Country Link
JP (1) JPS55140217A (en)
DE (1) DE3008447A1 (en)
FR (1) FR2451092A1 (en)
GB (1) GB2044550A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499305A1 (en) * 1981-02-04 1982-08-06 Radiotechnique Compelec Fritted magnets mfr. process with zoned magnetic properties - uses low pressure moulding of first zone transfer to second mould and over moulding with second zone paste utilising single feed moulds

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251733B (en) * 1990-11-16 1994-11-30 Mitsubishi Electric Corp Multi-element bead inductor
DE4206813A1 (en) * 1992-03-04 1993-09-09 Siemens Matsushita Components Inductive component arrangement - is sheathed in cast or moulded magnetic powder mixt which is finished at level of one surface of coil former so as to enclose coil completely on all sides
CA2180992C (en) * 1995-07-18 1999-05-18 Timothy M. Shafer High current, low profile inductor and method for making same
US7921546B2 (en) 1995-07-18 2011-04-12 Vishay Dale Electronics, Inc. Method for making a high current low profile inductor
US6198373B1 (en) 1997-08-19 2001-03-06 Taiyo Yuden Co., Ltd. Wire wound electronic component
GB2345800A (en) * 1997-08-19 2000-07-19 Taiyo Yuden Kk Method of manufacture for a wire wound electronic component
JP3752848B2 (en) * 1998-05-12 2006-03-08 株式会社村田製作所 Inductor
GB2361110A (en) * 2000-04-03 2001-10-10 Abb Ab An induction device
GB2379558A (en) * 2001-09-11 2003-03-12 Baker R Electromagnetic component and its method of manufacture
EP1502930A1 (en) * 2003-07-26 2005-02-02 ABC Taiwan Electronics Corp. Epoxy resin of electromagnetic interference suppression and manufacturing method thereof and an inductor applied in the electromagnetic interference suppression
US7120479B2 (en) 2004-02-25 2006-10-10 Nellcor Puritan Bennett Inc. Switch-mode oximeter LED drive with a single inductor
US8466764B2 (en) 2006-09-12 2013-06-18 Cooper Technologies Company Low profile layered coil and cores for magnetic components
US8378777B2 (en) 2008-07-29 2013-02-19 Cooper Technologies Company Magnetic electrical device
US8941457B2 (en) 2006-09-12 2015-01-27 Cooper Technologies Company Miniature power inductor and methods of manufacture
DE102007007117A1 (en) * 2007-02-13 2008-08-21 Vogt Electronic Components Gmbh Inductive component for large power spectrum and different installation space measurements, has two inductors arranged mechanically fixed to each other in pre-determined condition and are surrounded by magnetic filling
JP2009033051A (en) * 2007-07-30 2009-02-12 Sumitomo Electric Ind Ltd Core for reactor
US8659379B2 (en) 2008-07-11 2014-02-25 Cooper Technologies Company Magnetic components and methods of manufacturing the same
US9859043B2 (en) 2008-07-11 2018-01-02 Cooper Technologies Company Magnetic components and methods of manufacturing the same
US8279037B2 (en) 2008-07-11 2012-10-02 Cooper Technologies Company Magnetic components and methods of manufacturing the same
JP5325799B2 (en) * 2009-01-22 2013-10-23 日本碍子株式会社 Small inductor and method for manufacturing the same
JP5195891B2 (en) * 2010-12-21 2013-05-15 住友電気工業株式会社 Reactor core, reactor, and reactor manufacturing method
JP5305118B2 (en) * 2013-01-28 2013-10-02 住友電気工業株式会社 Reactor and boost converter
JP6673711B2 (en) * 2016-02-12 2020-03-25 株式会社トーキン Coil parts

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB806164A (en) * 1954-04-15 1958-12-17 Sylvania Electric Prod Improvements in or relating to electromagnetic coils
US2966704A (en) * 1957-01-22 1961-01-03 Edward D O'brian Process of making a ferrite magnetic device
US3255512A (en) * 1962-08-17 1966-06-14 Trident Engineering Associates Molding a ferromagnetic casing upon an electrical component
US3530417A (en) * 1969-05-26 1970-09-22 Rte Corp Capsulated electrical apparatus
GB1272888A (en) * 1969-07-14 1972-05-03 Jose Maria Bregante Castella Improved electromagnetic apparatus
US3663913A (en) * 1967-12-22 1972-05-16 Tohoku Metal Ind Ltd Core coil having a improved temperature characteristic
DE2118053A1 (en) * 1971-04-14 1972-10-26 Brown, Boveri & Cie AG, 6800 Mann heim Earth core for choke made from a mixture of ferromagnetic powder and insulating material binder
FR2206568A1 (en) * 1972-11-14 1974-06-07 Courier De Mere Henri

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB806164A (en) * 1954-04-15 1958-12-17 Sylvania Electric Prod Improvements in or relating to electromagnetic coils
US2966704A (en) * 1957-01-22 1961-01-03 Edward D O'brian Process of making a ferrite magnetic device
US3255512A (en) * 1962-08-17 1966-06-14 Trident Engineering Associates Molding a ferromagnetic casing upon an electrical component
US3663913A (en) * 1967-12-22 1972-05-16 Tohoku Metal Ind Ltd Core coil having a improved temperature characteristic
US3530417A (en) * 1969-05-26 1970-09-22 Rte Corp Capsulated electrical apparatus
GB1272888A (en) * 1969-07-14 1972-05-03 Jose Maria Bregante Castella Improved electromagnetic apparatus
DE2118053A1 (en) * 1971-04-14 1972-10-26 Brown, Boveri & Cie AG, 6800 Mann heim Earth core for choke made from a mixture of ferromagnetic powder and insulating material binder
FR2206568A1 (en) * 1972-11-14 1974-06-07 Courier De Mere Henri

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499305A1 (en) * 1981-02-04 1982-08-06 Radiotechnique Compelec Fritted magnets mfr. process with zoned magnetic properties - uses low pressure moulding of first zone transfer to second mould and over moulding with second zone paste utilising single feed moulds

Also Published As

Publication number Publication date
JPS55140217A (en) 1980-11-01
DE3008447A1 (en) 1980-09-18
GB2044550A (en) 1980-10-15

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