MOTOR

PROBLEM TO BE SOLVED: To provide a motor that reduces cogging torque.SOLUTION: A stator core 21 includes a main core part 31 comprising axially stacked core sheets 30 having tooth forming portions 33 wound with an armature winding, and magnetic plates 40 disposed at axial end portions of the main co...

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Bibliographic Details
Main Authors KATAI HIROSHI, BANBA TATSUNORI, TATEISHI YUSUKE
Format Patent
LanguageEnglish
Published 14.08.2014
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:PROBLEM TO BE SOLVED: To provide a motor that reduces cogging torque.SOLUTION: A stator core 21 includes a main core part 31 comprising axially stacked core sheets 30 having tooth forming portions 33 wound with an armature winding, and magnetic plates 40 disposed at axial end portions of the main core part 31. The magnetic plates 40 each have a stacking part 41 stacked on the corresponding axial end portion of the main core part 31, and rotor opposition portions 44 axially outwardly extended from an end portion of the stacking part 41 on the side of a rotor and radially opposite to the rotor. The rotor opposition portions 44 are magnetically skewed circumferentially of the tooth forming portions 33 and tooth forming portions 43 of the stacking part 41.
Bibliography:Application Number: JP20130013343