Dual rotor-type motor for reducing torque ripple and compressor comprising same
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United States of America Patent
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Nov 21, 2023
Grant Date -
Feb 11, 2021
app pub date -
Jan 30, 2019
filing date -
Feb 1, 2018
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Abstract
A dual rotor-type motor according to an embodiment of the present invention comprises: a stator around which a coil is wound; an outer rotor; and an inner rotor, wherein the inner rotor and the outer rotor have different initial angles, and thus the inner rotor and the outer rotor are misaligned from each other corresponding to the difference between the initial angles thereof. Therefore, the present invention can reduce torque ripple by a relatively simple method, and thus can improve efficiency of a motor and reduce vibration and noise.
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