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JPS56125953A - Insulation of motor rotor - Google Patents

Insulation of motor rotor

Info

Publication number
JPS56125953A
JPS56125953A JP2892580A JP2892580A JPS56125953A JP S56125953 A JPS56125953 A JP S56125953A JP 2892580 A JP2892580 A JP 2892580A JP 2892580 A JP2892580 A JP 2892580A JP S56125953 A JPS56125953 A JP S56125953A
Authority
JP
Japan
Prior art keywords
phosphate
rotor core
processing agent
formation processing
oxide film
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
JP2892580A
Other languages
Japanese (ja)
Inventor
Takao Kawaguchi
Takao Sawahata
Ritsuo Inaba
Kiyotaka Wasa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2892580A priority Critical patent/JPS56125953A/en
Publication of JPS56125953A publication Critical patent/JPS56125953A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0054—Casting in, on, or around objects which form part of the product rotors, stators for electrical motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/021—Magnetic cores
    • H02K15/023—Cage rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE:To obtain the excellent insulating property of the subject rotor for a conductive bar as well as to improve its speed-torque characteristic by a method wherein the outer surface of the rotor core, which has been formed into the prescribed shape, is processed using a formation processing agent and an insulating oxide film is formed on the outer surface of the rotor core. CONSTITUTION:On the outer surface of the rotor core, which has been formed into the prescribed shape by laminating a plurality of slotted steel plates, an insulating oxide film is formed by applying a formation processing agent or by having the rotor core soaked into the formation processing agent solution. The formation processing agent including at least a kind of primary phosphate group consisting of manganese phosphate, phosphate of zinc, iron phosphate, lead phosphate and copper phosphate may be used at the temperature between normal temperature and 200 deg.C. Then, the conductive bar is formed by performing an aluminum die casting at the slot section. Through these procedures, the speed-torque characteristic can be improved as shown by the solid line in the diagram.
JP2892580A 1980-03-06 1980-03-06 Insulation of motor rotor Pending JPS56125953A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2892580A JPS56125953A (en) 1980-03-06 1980-03-06 Insulation of motor rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2892580A JPS56125953A (en) 1980-03-06 1980-03-06 Insulation of motor rotor

Publications (1)

Publication Number Publication Date
JPS56125953A true JPS56125953A (en) 1981-10-02

Family

ID=12261973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2892580A Pending JPS56125953A (en) 1980-03-06 1980-03-06 Insulation of motor rotor

Country Status (1)

Country Link
JP (1) JPS56125953A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9500593A (en) * 1994-03-31 1995-11-01 Abb Verkehrstechnik Method for the manufacture of windings for an electric machine, as well as an electric machine with winding.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9500593A (en) * 1994-03-31 1995-11-01 Abb Verkehrstechnik Method for the manufacture of windings for an electric machine, as well as an electric machine with winding.

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