JPS54101123A - Heat-proof electric insulation device - Google Patents

Heat-proof electric insulation device

Info

Publication number
JPS54101123A
JPS54101123A JP720178A JP720178A JPS54101123A JP S54101123 A JPS54101123 A JP S54101123A JP 720178 A JP720178 A JP 720178A JP 720178 A JP720178 A JP 720178A JP S54101123 A JPS54101123 A JP S54101123A
Authority
JP
Japan
Prior art keywords
heat
proof
insulating layer
base material
electric conductor
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
JP720178A
Other languages
Japanese (ja)
Inventor
Yutaka Higashimura
Shinei 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.)
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 JP720178A priority Critical patent/JPS54101123A/en
Publication of JPS54101123A publication Critical patent/JPS54101123A/en
Pending legal-status Critical Current

Links

Landscapes

  • Insulating Of Coils (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

PURPOSE: To prevent an insulating layer from exfoliating from the electric conductor, by interposing a heat-proof insulating base material of modulus of rigidity, smaller than that of the heat-proof varnish of the insulating layer, between the electric concuctor and the insulating layer.
CONSTITUTION: On an electric conductor 1, are wound a collective mica tape and polyamides film as a heat-proof insulating base material 2, and, for instance, epoxy resins are impregnated as a heat-proof varnish 3, being hardened with an insulating layer 4 constructed. And between said insulating layer 4 and the electric conductor 1, is interposed a film of ethylene tetrafluoride and the like as a heat-proof insulating base material 5. Said heat-proof insulating base material 5 is selected so as to provide a modulus of rigidity smaller than that of the heat-proof varnish 3. In this way, even at a high temperature above F-class, with an exfoliation not generated in the surface boundary between the electric conductor 1 and the insulating layer 4, the reliability can be enhanced.
COPYRIGHT: (C)1979,JPO&Japio
JP720178A 1978-01-27 1978-01-27 Heat-proof electric insulation device Pending JPS54101123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP720178A JPS54101123A (en) 1978-01-27 1978-01-27 Heat-proof electric insulation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP720178A JPS54101123A (en) 1978-01-27 1978-01-27 Heat-proof electric insulation device

Publications (1)

Publication Number Publication Date
JPS54101123A true JPS54101123A (en) 1979-08-09

Family

ID=11659405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP720178A Pending JPS54101123A (en) 1978-01-27 1978-01-27 Heat-proof electric insulation device

Country Status (1)

Country Link
JP (1) JPS54101123A (en)

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