STATOR CONSTRUCTION OF BUILT-IN MOTOR

PURPOSE:To reduce rigid unbalance generated in the periphery and the circumference of a stator core and to enhance rigidity, accuracy and reliability of allover the stator core by laminating element plates applied thermosetting adhesives to the surface of a stator. CONSTITUTION:Thermosetting adhesiv...

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Bibliographic Details
Main Authors NAKAMURA ATSUO, NUMAI KAZUHISA, HAYASHI YOSHIYUKI, KIMIJIMA MASAMI
Format Patent
LanguageEnglish
Published 12.07.1990
Subjects
BORING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
TURNING
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Summary:PURPOSE:To reduce rigid unbalance generated in the periphery and the circumference of a stator core and to enhance rigidity, accuracy and reliability of allover the stator core by laminating element plates applied thermosetting adhesives to the surface of a stator. CONSTITUTION:Thermosetting adhesives such as epoxy resin and others are applied to the surface of every electromagnetic steel plate 12 consisting of constitutional element plates of a stator core with several microns in thickness. They are tightened with jigs from both ends to fix temporarily, and when they are maintained in an extent of 150 deg. of temperature, they are fixed firmly to each other. After that, they are held by a mandrel, the periphery 14 is ground and cut by an abrasive wheel, and the degree of accuracy of the external dimension is increased. Joining force is so firm that no deformation occurs even if the mandrel is removed, and a require external dimension obtained through the abrasion is maintained as it is.
Bibliography:Application Number: JP19880329115