Motor
AssigneeNidec Corporation
InventorsShinji Takemoto, Keizo Furukawa, Tsuyoshi Hirokawa
Life of this patent
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AssigneeNidec Corporation
InventorsShinji Takemoto, Keizo Furukawa, Tsuyoshi Hirokawa
Estimating the term…
A motor includes a stationary portion, a rotating portion that includes a shaft rotating about a vertically extending central axis, and a bearing portion that rotatably supports the shaft with respect to the stationary portion. The stationary portion includes a cylindrical bearing housing portion that holds the bearing portion, a stator that is radially outward of the bearing housing portion, a circuit board that is below the stator, and an annular spacer that is between the stator and the bearing housing portion. The stator includes a stator core that includes an annular core back and multiple teeth that extend radially outward from the core back and are arranged in a circumferential direction, an insulating film that covers a surface of the teeth, extends radially inward from a lower surface of the teeth, and covers a lower outer edge portion of the core back, and a coil provided on the teeth.
A motor comprising:
Dependencies are inferred from the claim text.