Electric motor assembly and hair dryer having the same
AssigneeLG Electronics Inc.
InventorsJaeho Kim, Sunghyun Kim, Kyungho Ha, Sunghoon Kwak
Life of this patent
Estimating the term…
Abstract
An electric motor assembly for, for example, a hair dryer, includes an impeller, an outer housing in which the impeller is accommodated, an inner housing concentrically disposed in the outer housing, a stator having one side thereof accommodated in the inner housing, a rotor provided with a rotating shaft having one end coupled to the impeller and rotatably accommodated in the stator, a first bearing disposed at one side of the rotor, a second bearing disposed at another side of the rotor, and a bracket coupled to the stator and the outer housing so as to support the second bearing. Accordingly, initial alignment of the stator and the rotor may be securely maintained.
Claims19
A hair dryer comprising:
- a hair dryer body having an air outlet port;
- a handle having an air inlet port, the handle being connected to and in fluid communication with the hair dryer body;
- and
- an electric motor assembly disposed in the handle and comprising:
- an impeller;
- an outer housing that receives the impeller;
- an inner housing that is positioned in the outer housing and positioned concentrically with the impeller;
- a stator that is positioned at least partially in the inner housing;
- a rotor that is configured to rotate relative to the stator and includes a rotating shaft coupled to the impeller;
- a first bearing that is disposed at a first side of the rotor and configured to support the rotating shaft;
- a second bearing that is disposed at a second side of the rotor and configured to support the rotating shaft, the second side of the rotor being opposite to the first side of the rotor along an axial direction of the rotor;
- and
- a bracket that is disposed at the second side of the rotor and that has an inner surface coupled to the stator and an outer surface coupled to the outer housing,
- wherein the first bearing is positioned inside the inner housing, and the second bearing is positioned at the bracket, and
- wherein the outer housing includes a support ring that protrudes from an outer surface of the outer housing and extends along a circumferential direction of the outer housing.
An electric motor assembly comprising:
- an impeller;
- an outer housing that receives the impeller;
- an inner housing that is positioned in the outer housing and positioned concentrically with the impeller;
- a stator that is positioned at least partially in the inner housing;
- a rotor that is configured to rotate relative to the stator and includes a rotating shaft coupled to the impeller;
- a first bearing that is disposed at a first side of the rotor and supports the rotating shaft;
- a second bearing that is disposed at a second side of the rotor and supports the rotating shaft, the second side of the rotor being opposite to the first side of the rotor along an axial direction of the rotor;
- and
- a bracket that is disposed at the second side of the rotor and that has an inner surface coupled to the stator and an outer surface coupled to the outer housing,
- wherein the first bearing is positioned inside the inner housing, and the second bearing is positioned at the bracket,
- wherein the outer housing includes a support ring that protrudes from an outer surface of the outer housing and extends along a circumferential direction of the outer housing.
Dependencies are inferred from the claim text.