JPS56161629A - Manufacture of molded transformer - Google Patents

Manufacture of molded transformer

Info

Publication number
JPS56161629A
JPS56161629A JP6530580A JP6530580A JPS56161629A JP S56161629 A JPS56161629 A JP S56161629A JP 6530580 A JP6530580 A JP 6530580A JP 6530580 A JP6530580 A JP 6530580A JP S56161629 A JPS56161629 A JP S56161629A
Authority
JP
Japan
Prior art keywords
insulating rod
resin
rod
caulked
heated
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
JP6530580A
Other languages
Japanese (ja)
Inventor
Tamio Takeda
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 JP6530580A priority Critical patent/JPS56161629A/en
Publication of JPS56161629A publication Critical patent/JPS56161629A/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
    • H01F41/005—Impregnating or encapsulating

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE:To exactly position an insulating rod in a metal mold and prevent cracks from appearing an sealing resin by a method wherein after the insulating rod is inserted through a stacked core built in a coil and heated at the both ends to be caulked, the insulating rod is supported and fixed in the metal mold. CONSTITUTION:The stacked core 1 built in the coil 2 is contacted with clamps 3 at both ends, the pressed with heated molds 15 to be caulked. Then, the synthetic resin 7 is injected to complete the sealed transformer. The insulating rod 11 is formed by a method wherein a glass fiber is impregnated with the synthetic resin and half-hardened to be wound round in rod-shape. A stress relaxation layer 7a is formed and sealed with the resin after the metal molds 15 hemispherically concaved are heated at about 200 deg.C, inserted through the rod ends 11b and pressed to be caulked. With this construction, the coefficients of thermal expansion of the insulating rod 11 and the sealing resin 7 are so close each other that the residual stress decreases and the resin 7 is hard to be cracked.
JP6530580A 1980-05-19 1980-05-19 Manufacture of molded transformer Pending JPS56161629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6530580A JPS56161629A (en) 1980-05-19 1980-05-19 Manufacture of molded transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6530580A JPS56161629A (en) 1980-05-19 1980-05-19 Manufacture of molded transformer

Publications (1)

Publication Number Publication Date
JPS56161629A true JPS56161629A (en) 1981-12-12

Family

ID=13283057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6530580A Pending JPS56161629A (en) 1980-05-19 1980-05-19 Manufacture of molded transformer

Country Status (1)

Country Link
JP (1) JPS56161629A (en)

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