Motor and washing machine including the same
AssigneeLG Electronics Inc.
InventorsCha Jun, Byoung Min
Life of this patent
Estimating the term…
Abstract
Provided are a motor and a washing machine using the motor. The motor has a stator, a rotor, a rotor frame, a permanent magnet, and a comb polarizing ring. The rotor rotates against the stator. The permanent magnet is installed on the rotor frame and has protrusions with alternating North and South polarities. The comb polarizing ring includes a plurality of teeth disposed between the protrusions of the permanent magnet, and is formed of a material with a magnetism that is weaker than a magnetism of the protrusions.
Claims18
A motor having a stator and a rotor rotating against the stator, the motor comprising:
- a rotor frame;
- a permanent magnet installed on the rotor frame and having protrusions with alternating North and South polarities;
- and
- a comb polarizing ring including a plurality of teeth disposed between the protrusions of the permanent magnet, and formed of a material with a magnetism that is weaker than a magnetism of the protrusions.
A washing machine comprising:
- a case;
- a tub installed inside the case, for holding wash liquid;
- a drum installed inside the tub, for holding laundry;
- and
- a motor including a permanent magnet having protrusions forming alternating North and South polarities, and a comb polarizing ring having teeth disposed between the protrusions of the permanent magnet and formed of a material having a weaker magnetism than the permanent magnet and, and a stator coupled to the rotor, wherein the motor imparts rotational force to the drum.
Dependencies are inferred from the claim text.