Motor assembly and method for manufacturing the same
AssigneeLG Electronics Inc.
InventorsEunji HWANG, Byungjik KIM, Sunggi KIM, Jisu HWANG
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Abstract
An embodiment of the present disclosure discloses a motor assembly including a rotation shaft, an impeller including a hub fastened to the rotation shaft, and a plurality of blades protruding outward from an outer surface of the hub, an inlet body for surrounding an outer circumference of the impeller, and a coating layer coated on an inner surface of the inlet body, wherein at least a portion of the coating layer is ground in a form of powder by friction with the plurality of blades during rotation of the impeller.
Claims20
A motor assembly comprising:
- a rotation shaft;
- an impeller comprising a hub that is coupled to the rotation shaft and a plurality of blades that protrude outward from an outer surface of the hub;
- an inlet body that surrounds an outer circumference of the impeller;
- and
- a coating layer disposed on an inner surface of the inlet body, the coating layer being at least partially ground by friction from contact with the plurality of blades during rotation of the impeller.
A method for manufacturing a motor assembly, the motor assembly including an impeller that includes a plurality of blades and an inlet body that surrounds an outer circumference of the impeller, the method comprising:
- forming a coating layer on an inner surface of the inlet body, wherein forming the coating layer comprises adsorbing a plurality of paint particles on the inner surface of the inlet body by electrostatic painting;
- based on forming the coating layer, inserting the impeller into the inlet body;
- and rotating the impeller in the inlet body to thereby at least partially grind the coating layer.
Dependencies are inferred from the claim text.