Switched reluctance motor
AssigneeLG Electronics Inc.
InventorsSang-Young Kim, Jun-Young Lim
Life of this patent
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Abstract
Disclosed is a switched reluctance motor which can reduce noise and prevent overheating in rotation of a rotor. The switched reluctance motor includes: a stator core having a plurality of inwardly protruded poles at predetermined intervals; coils wound around the protruded poles of the stator core; and a rotor core being rotatably housed inside the stator core with a predetermined gap, and having a plurality of outwardly protruded poles along the radial direction, and round units protruded from the front ends of each protruded pole of the rotor core starting to meet each protruded pole of the stator core, so that gaps between the protruded poles of the stator core and the protruded poles of the rotor core can be gradually reduced.
Claims5
A switched reluctance motor, comprising:
- a stator core having a plurality of inwardly protruding poles at predetermined intervals;
- a plurality of coils wound around the plurality of inwardly protruding poles of the stator core, respectively;
- and
- a rotor core rotatably housed inside the stator core with a predetermined gap therebetween, and having a plurality of outwardly protruding poles along a radial direction and round portions that protrude, respectively, from front ends of each of the plurality of outwardly protruded poles of the rotor core, so that gaps formed, respectively, between the plurality of inwardly protruding poles of the stator core and the plurality of outwardly protruding poles of the rotor core are gradually reduced during rotation of the rotor core, wherein each of the round portions comprises a plurality of round portions having different curvatures, and wherein the plurality of round portions comprise:
- first round portions formed at the front ends of the plurality of protruding poles of the rotor core in a rotating direction of the rotor core;
- and
- second round portions formed to have a larger curvature than the first round portions, and connected to rear ends of the first round portions in the rotating direction of the rotor core.
Dependencies are inferred from the claim text.