JPS57134916A - Fabrication of molded coil - Google Patents

Fabrication of molded coil

Info

Publication number
JPS57134916A
JPS57134916A JP2008981A JP2008981A JPS57134916A JP S57134916 A JPS57134916 A JP S57134916A JP 2008981 A JP2008981 A JP 2008981A JP 2008981 A JP2008981 A JP 2008981A JP S57134916 A JPS57134916 A JP S57134916A
Authority
JP
Japan
Prior art keywords
insulation layer
smc
main insulation
protective casing
work
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
JP2008981A
Other languages
Japanese (ja)
Inventor
Masamitsu Tsushima
Shinji Yajima
Hironobu Hamada
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2008981A priority Critical patent/JPS57134916A/en
Publication of JPS57134916A publication Critical patent/JPS57134916A/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)
  • Railway Tracks (AREA)
  • Insulating Of Coils (AREA)

Abstract

PURPOSE:To improve mechanical and electrical characteristics by forming a main insulation layer which is formed outside a coil proper by hardening after winding mica tape applied with resin not treated for setting and, in addition to this, by forming a protective casing by heating and pressing the entire work covered with SMC (molding compound). CONSTITUTION:The coil proper 1 is composed of aluminum conductor 2 with an insulation film 3 interlaid which are wound into a few turns of a coiled layer with the insulation film 3 interlaid. Next, the main insulation layer 4 is fomred by heat-setting of many turns of a prepreged laminated mica sheet 5 with stage A epoxy resin 6 applied. In addition to those, a shield layer 7 is provided outside the main insulation layer 4 in such a manner as the work is wrapped up with wire cloth provided with a narrow spacing so as not to form a closed circuit and not to produce any circulating current. After this, the work is covered with SMC and is heated and pressed in metal mold to set in specified shape of the protective casing 8. This construction is to improve mechanical and electrical characteristics because electrical stress is taken up by the main insulation layer and mechanical stress is by the protective casing of SMC respectively.
JP2008981A 1981-02-16 1981-02-16 Fabrication of molded coil Pending JPS57134916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008981A JPS57134916A (en) 1981-02-16 1981-02-16 Fabrication of molded coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008981A JPS57134916A (en) 1981-02-16 1981-02-16 Fabrication of molded coil

Publications (1)

Publication Number Publication Date
JPS57134916A true JPS57134916A (en) 1982-08-20

Family

ID=12017372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008981A Pending JPS57134916A (en) 1981-02-16 1981-02-16 Fabrication of molded coil

Country Status (1)

Country Link
JP (1) JPS57134916A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6531082B1 (en) * 1998-08-05 2003-03-11 Alstom Power Method for impregnating conductor bars for the stator winding of an electrical machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6531082B1 (en) * 1998-08-05 2003-03-11 Alstom Power Method for impregnating conductor bars for the stator winding of an electrical machine
US6764291B2 (en) 1998-08-05 2004-07-20 Alstom Device for impregnating conductor bars for the stator winding of an electrical machine

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