Motor
AssigneeLG Electronics Inc.
InventorsChanglae KIM, Sunggi KIM, Byungjik KIM, Taeho KIM
Life of this patent
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Abstract
Disclosed herein is a motor including a bearing in which a rolling member is disposed between an inner ring and an outer ring, a spring connected to the outer ring, and a pusher connected to the spring to be retracted to a first position spaced apart from the inner ring by the spring, and to be advanced to a second position at which friction with the inner ring is caused by a pressure of air acting on a pressure surface when the pressure surface on which the pressure of air flowing by the impeller acts is formed, wherein the inner ring is spaced apart from the rotating shaft by a gap formed between the inner ring and the rotating shaft when the pusher is at the second position.
Claims20
A motor comprising:
- a rotating shaft;
- a rotor connected to the rotating shaft;
- an impeller connected to the rotating shaft;
- a bearing comprising an inner ring, an outer ring, and a rolling member disposed between the inner ring and the outer ring, an inner diameter of the inner ring being larger than an outer diameter of the rotating shaft;
- a spring connected to the outer ring;
- and
- a pusher connected to the spring, the pusher being configured to:
- based on force applied by the spring, move away from the inner ring to a first position spaced apart from the inner ring, and
- based on an air pressure applied to a pressure surface of the pusher by air blown by the impeller, move to a second position facing the inner ring,
- wherein the inner ring is configured to:
- based on the pusher being at the first position, rotate with the rotating shaft by friction with the rotating shaft, and
- based on the pusher being at the second position, become detached from the rotating shaft to thereby define a gap between the inner ring and the rotating shaft.
A motor comprising:
- a rotating shaft;
- a rotor connected to the rotating shaft;
- an impeller connected to the rotating shaft;
- a bearing comprising an inner ring, an outer ring, and a rolling member disposed between the inner ring and the outer ring, an inner diameter of the inner ring being greater than an outer diameter of the rotating shaft;
- a bearing housing that defines a bearing receiving portion configured to support the bearing;
- and
- a pusher disposed within the bearing receiving portion and configured to move between a first position spaced apart from the inner ring and a second position contacting the inner ring,
- wherein the inner ring is configured to, based on the pusher being at the second position, become detached from the rotating shaft to thereby define a gap between the inner ring and the rotating shaft.
Dependencies are inferred from the claim text.