JPS57134918A - Fabrication of molded coil - Google Patents

Fabrication of molded coil

Info

Publication number
JPS57134918A
JPS57134918A JP2019381A JP2019381A JPS57134918A JP S57134918 A JPS57134918 A JP S57134918A JP 2019381 A JP2019381 A JP 2019381A JP 2019381 A JP2019381 A JP 2019381A JP S57134918 A JPS57134918 A JP S57134918A
Authority
JP
Japan
Prior art keywords
metal mold
wound
winding core
coils
tape
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
JP2019381A
Other languages
Japanese (ja)
Inventor
Hirobumi Kubo
Akihiro Ooyama
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2019381A priority Critical patent/JPS57134918A/en
Publication of JPS57134918A publication Critical patent/JPS57134918A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

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

Abstract

PURPOSE:To make it possible to improve dielectric strength and to produce coils and lighter by a construction wherein a part of metal mold is used as a winding core on which a sheet of fibrous material is wound. After coils are wound on it, it is soaked into molding material and hardened. CONSTITUTION:An inside copper plate 1a of a metal mold is used as a winding core on which a sheet or tape of fibrous material such as, for example, fiber glass cloth, etc. is wound to form an inner insulator 3. Further, many insulators in bar shape are laid on the circumferential surface in parallel with the center axis of the winding core at specified intervals over which tape or the like is wound to fix them so as to form split spacers 4a, 4b on which coils 5a, 5b are wound. Next, the winding core 1a is used as a part of a metal mold, and the metal mold is assembled up together with other members of the metal mold 1b, 1c, 1d and packings 1e, 1f. Molding material composed of inoganic filler put in thermosetting resin such as epoxy resin, etc. is poured into the metal mold inside a vacuum tank and is heated for setting to form an insulation layer 6. A molded coil can be obtained after the metal mold is removed.
JP2019381A 1981-02-16 1981-02-16 Fabrication of molded coil Pending JPS57134918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019381A JPS57134918A (en) 1981-02-16 1981-02-16 Fabrication of molded coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019381A JPS57134918A (en) 1981-02-16 1981-02-16 Fabrication of molded coil

Publications (1)

Publication Number Publication Date
JPS57134918A true JPS57134918A (en) 1982-08-20

Family

ID=12020334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019381A Pending JPS57134918A (en) 1981-02-16 1981-02-16 Fabrication of molded coil

Country Status (1)

Country Link
JP (1) JPS57134918A (en)

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