ROTOR, MOTOR, AND AIR CONDITIONING APPARATUS
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United States of America Patent
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Issued Date -
Jan 21, 2021
app pub date -
Apr 14, 2017
filing date -
Apr 14, 2017
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Abstract
A rotor includes a shaft extending in the direction of an axis, and a rotor core including a central hole in which the shaft is inserted. The central hole includes a first central hole, a second central hole, and a third central hole in the direction of the axis. A distance from the axis to an inner circumferential surface of the third central hole is larger than a distance from the axis to an inner circumferential surface of the second central hole. The distance from the axis to the inner circumferential surface of the second central hole is larger than a distance from the axis to an inner circumferential surface of the first central hole.
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