JPS55125612A - Molded coil - Google Patents

Molded coil

Info

Publication number
JPS55125612A
JPS55125612A JP3400479A JP3400479A JPS55125612A JP S55125612 A JPS55125612 A JP S55125612A JP 3400479 A JP3400479 A JP 3400479A JP 3400479 A JP3400479 A JP 3400479A JP S55125612 A JPS55125612 A JP S55125612A
Authority
JP
Japan
Prior art keywords
resin
conductor
molding
cushion material
coil
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
JP3400479A
Other languages
Japanese (ja)
Inventor
Mamoru Hayashi
Koichi Hino
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3400479A priority Critical patent/JPS55125612A/en
Publication of JPS55125612A publication Critical patent/JPS55125612A/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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)

Abstract

PURPOSE:To prevent a molding resin from cracking, by interposing a cushion material between a coil and the resin and then performing molding. CONSTITUTION:A coil conductor 1 is coated with a rubber cushion material. This material is coated with a resin 2. The conductor is then wound around a core 3. The thermal expansion coefficient of the metal conductor is smaller than that of the molding resin. When the metal conductor is Al and the molding resin is epoxy resin and the length of the conductor is 500mm, the expansion difference between the conductor 1 and the resin layer is 0.4mm under a temperature difference of 100 deg.C. For this resin, the cushion material 4 is provided at a thickness of 2mm on one side so that the expansion coefficent of 0.2mm on one side is absorbed. Therefore, no stress is caused and the resin layer 2 is prevented from cracking.
JP3400479A 1979-03-22 1979-03-22 Molded coil Pending JPS55125612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3400479A JPS55125612A (en) 1979-03-22 1979-03-22 Molded coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3400479A JPS55125612A (en) 1979-03-22 1979-03-22 Molded coil

Publications (1)

Publication Number Publication Date
JPS55125612A true JPS55125612A (en) 1980-09-27

Family

ID=12402286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3400479A Pending JPS55125612A (en) 1979-03-22 1979-03-22 Molded coil

Country Status (1)

Country Link
JP (1) JPS55125612A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010147364A (en) * 2008-12-22 2010-07-01 Denso Corp Reactor
JP2010245111A (en) * 2009-04-01 2010-10-28 Nec Tokin Corp Reactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010147364A (en) * 2008-12-22 2010-07-01 Denso Corp Reactor
JP2010245111A (en) * 2009-04-01 2010-10-28 Nec Tokin Corp Reactor

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