JPS57157510A - Wound core for coil - Google Patents

Wound core for coil

Info

Publication number
JPS57157510A
JPS57157510A JP56042795A JP4279581A JPS57157510A JP S57157510 A JPS57157510 A JP S57157510A JP 56042795 A JP56042795 A JP 56042795A JP 4279581 A JP4279581 A JP 4279581A JP S57157510 A JPS57157510 A JP S57157510A
Authority
JP
Japan
Prior art keywords
wound core
wound
core
coil body
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
JP56042795A
Other languages
Japanese (ja)
Inventor
Einosuke Adachi
Hirofumi Fujioka
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 JP56042795A priority Critical patent/JPS57157510A/en
Publication of JPS57157510A publication Critical patent/JPS57157510A/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

Abstract

PURPOSE:To obtain the simple cheap wound core by molding a metallic plate in a rolled shape. CONSTITUTION:The outside diameter of the wound core 11 is made larger than the desired inside diameter of a coil body through springback. The wound core is mounted to a coil winder, overlapping sections are fast stuck, the degree of a true circle is brought to the maximum condition, and the wound core is molded in the rolled shape to obtain desired size and bound. A prepropylene film having excellent extensibility for mold release is wound several times, and a base material and a conductor are wound. When binding is released and the whole is dried preparatorily at approximately 180 deg.C under a condition that the film is wound on the wound core 11, the base material is thermally shrunk to tighten a coil body, and the wound core is expanded from its inner surface through the springback. Accordingly, the wound core and the coil body are fixed strongly. The whole surfaces of an outer circumference and a lower end surface are sealed, and resin is injected and impregnated from an upper end surface and thermally cured. Lastly, the outside diameter of the wound core 11 is contracted, and the wound core is extracted. The wound core is light, structure is simple and extraction is easy.
JP56042795A 1981-03-23 1981-03-23 Wound core for coil Pending JPS57157510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56042795A JPS57157510A (en) 1981-03-23 1981-03-23 Wound core for coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56042795A JPS57157510A (en) 1981-03-23 1981-03-23 Wound core for coil

Publications (1)

Publication Number Publication Date
JPS57157510A true JPS57157510A (en) 1982-09-29

Family

ID=12645895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56042795A Pending JPS57157510A (en) 1981-03-23 1981-03-23 Wound core for coil

Country Status (1)

Country Link
JP (1) JPS57157510A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8772638B2 (en) 2004-04-27 2014-07-08 Prysmian Cavi E Sistemi Energia S.R.L. Process for manufacturing a cable resistant to external chemical agents
JP2014144832A (en) * 2013-01-28 2014-08-14 Toyota Industries Corp Winding core and sheet holding method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8772638B2 (en) 2004-04-27 2014-07-08 Prysmian Cavi E Sistemi Energia S.R.L. Process for manufacturing a cable resistant to external chemical agents
JP2014144832A (en) * 2013-01-28 2014-08-14 Toyota Industries Corp Winding core and sheet holding method

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