MOTOR

A motor includes a rotating portion with a shaft extending along a rotation axis and a rotor that rotates together with the shaft, a stationary portion with a stator located radially outside of the rotor and a magnetic sensor located above the rotor to detect a rotational position of the rotor. The...

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Bibliographic Details
Main Authors FURUKAWA Keizo, KITAJI Kazuya, NAGASAWA Jun
Format Patent
LanguageEnglish
Published 18.01.2018
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:A motor includes a rotating portion with a shaft extending along a rotation axis and a rotor that rotates together with the shaft, a stationary portion with a stator located radially outside of the rotor and a magnetic sensor located above the rotor to detect a rotational position of the rotor. The rotor includes a rotor core, a rotor magnet located radially outside of the rotor core and under the magnetic sensor, in contact with the rotor core or located opposite to the rotor core with a first gap therebetween. A recessed portion is recessed from each of an upper end surface and an outer circumferential surface of the rotor core. An inner circumferential surface of a lower end portion of the rotor holder is fixed to a radially inner surface of the recessed portion.
Bibliography:Application Number: US201715716617