EP2026362A1 - Abgeschirmte Drosselspule - Google Patents

Abgeschirmte Drosselspule Download PDF

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Publication number
EP2026362A1
EP2026362A1 EP07113971A EP07113971A EP2026362A1 EP 2026362 A1 EP2026362 A1 EP 2026362A1 EP 07113971 A EP07113971 A EP 07113971A EP 07113971 A EP07113971 A EP 07113971A EP 2026362 A1 EP2026362 A1 EP 2026362A1
Authority
EP
European Patent Office
Prior art keywords
powder compact
compact member
coil
bottom side
inductor
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Withdrawn
Application number
EP07113971A
Other languages
English (en)
French (fr)
Inventor
Bor-Shiun Lee
Chou-Mo Wang
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.)
ABC Taiwan Electronics Corp
Original Assignee
ABC Taiwan Electronics Corp
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 ABC Taiwan Electronics Corp filed Critical ABC Taiwan Electronics Corp
Priority to EP07113971A priority Critical patent/EP2026362A1/de
Publication of EP2026362A1 publication Critical patent/EP2026362A1/de
Withdrawn legal-status Critical Current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
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • 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
    • 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
    • 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
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices
    • 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
    • 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
    • H01F41/04—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 for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating

Definitions

  • FIG. 1 illustrates the structure of a conventional inductor.
  • the inductor 90 is comprised of a powder compact member 91, an air coil 92, and two terminals 93 and 94.
  • the coil 92 is embedded in the powder compact member 91.
  • the two terminals 93 and 94 are respectively connected to the two opposite ends of the coil 92 and extended out of the powder compact member 91.
  • the shielded-type inductor is comprised of a first powder compact member, a coil, and a second powder compact member.
  • the first powder compact member has a bottom side and a top side.
  • the coil comprises a coil body embedded in the bottom side of the first powder compact member in and two metal terminals respectively connected to the two opposite ends of the coil body and extending out of the first powder compact member.
  • the second powder compact member is bonded to the bottom side of the first powder compact member and blocking the coil body in the bottom side of the first powder compact member.
  • the second powder compact member before bonding the second powder compact member to the first powder compact member, the second powder compact member can be printed or embossed with the product specification and/or company's logo or trade name. By means of controlling the thickness of the second powder compact member, the inductance value of the inductor is fine-adjusted. Further, the second powder compact member can be prepared from a relatively less expensive magnetic metal material to lower the cost without changing the designed electric characteristics.
  • the coil body 11 is embedded in the first powder compact member 2 such that the bottom side 111 of the coil body 11 is kept in flush with the bottom side 21 of the first powder compact member 2, and the top side 22 of the first powder compact member 2 is spaced above the top side 112 of the coil body 11 at a distance D1,
  • the shielded-type inductor 10 is comprised of a coil 1, a first powder compact member 2, and a second powder compact member 3. Further, the shielded-type inductor 10 is made by mans of the application of a first mold 4 and a second mold 5. As shown in FIGS. 6 and 7 , the first mold 4 is comprised of a female die 41, a bottom die 41, a locating block 43, and a top die 44.
  • the female die 41 has a die cavity 411, and two receiving cavities 412 and 413 at two opposite sides relative to the die cavity 411.
  • the die cavity 411 is adapted to mold the first powder compact member 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
EP07113971A 2007-08-07 2007-08-07 Abgeschirmte Drosselspule Withdrawn EP2026362A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07113971A EP2026362A1 (de) 2007-08-07 2007-08-07 Abgeschirmte Drosselspule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07113971A EP2026362A1 (de) 2007-08-07 2007-08-07 Abgeschirmte Drosselspule

Publications (1)

Publication Number Publication Date
EP2026362A1 true EP2026362A1 (de) 2009-02-18

Family

ID=38649992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07113971A Withdrawn EP2026362A1 (de) 2007-08-07 2007-08-07 Abgeschirmte Drosselspule

Country Status (1)

Country Link
EP (1) EP2026362A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551863A1 (de) * 2010-03-20 2013-01-30 Daido Steel Co.,Ltd. Reaktor und herstellungsverfahren dafür
EP2551864A1 (de) * 2010-03-20 2013-01-30 Daido Steel Co.,Ltd. Verfahren zur herstellung eines eingekapselten spulenkörpers und eingekapselter spulenkörper

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010016977A1 (en) * 2000-01-12 2001-08-30 Tdk Corporation Coil-embedded dust core production process, and coil-embedded dust core
US6392525B1 (en) * 1998-12-28 2002-05-21 Matsushita Electric Industrial Co., Ltd. Magnetic element and method of manufacturing the same
US20060001517A1 (en) * 2004-07-02 2006-01-05 Cheng Chang M High current inductor and the manufacturing method
US20060186978A1 (en) * 2003-12-10 2006-08-24 Sumida Corporation Magnetic element and method of manufacturing magnetic element
WO2007075061A1 (en) * 2005-12-28 2007-07-05 Toda Isu Corporation Surface mount type power inductor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6392525B1 (en) * 1998-12-28 2002-05-21 Matsushita Electric Industrial Co., Ltd. Magnetic element and method of manufacturing the same
US20010016977A1 (en) * 2000-01-12 2001-08-30 Tdk Corporation Coil-embedded dust core production process, and coil-embedded dust core
US20060186978A1 (en) * 2003-12-10 2006-08-24 Sumida Corporation Magnetic element and method of manufacturing magnetic element
US20060001517A1 (en) * 2004-07-02 2006-01-05 Cheng Chang M High current inductor and the manufacturing method
WO2007075061A1 (en) * 2005-12-28 2007-07-05 Toda Isu Corporation Surface mount type power inductor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551863A1 (de) * 2010-03-20 2013-01-30 Daido Steel Co.,Ltd. Reaktor und herstellungsverfahren dafür
EP2551864A1 (de) * 2010-03-20 2013-01-30 Daido Steel Co.,Ltd. Verfahren zur herstellung eines eingekapselten spulenkörpers und eingekapselter spulenkörper
EP2551864A4 (de) * 2010-03-20 2014-11-05 Daido Steel Co Ltd Verfahren zur herstellung eines eingekapselten spulenkörpers und eingekapselter spulenkörper
EP2551863A4 (de) * 2010-03-20 2015-01-21 Daido Steel Co Ltd Reaktor und herstellungsverfahren dafür

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