Structure for Brushless Motors
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United States of America Patent
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N/A
Issued Date -
Sep 5, 2013
app pub date -
Mar 2, 2012
filing date -
Mar 2, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An improved structure for brushless motors comprises a stationary part and a rotary or movable part mounted relative to the stationary part. The rotary part includes a frame and a plurality of magnets disposed, one after another, along one surface of the frame and attached to the surface of the frame adjacent to the stationary part, wherein each of the magnets has a curved surface so as to define a series of gaps between the curved surfaces of the magnets and the surface of the frame of the rotary or movable part. With the present invention, the airgap between the stationary part and rotary or movable part would be more uniform, and the motor can be manufactured more easily. Also, when running the motor, cogging or no-current torque can be reduced or eliminated, so that the motor can be operated more smoothly.
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