Magnetizing motor and magnetizing method thereof
AssigneeLG Electronics Inc.
InventorsJang-Ho Shim, Sung-Ho Lee, Jae-Min Kim, Jae-Hak Choi, Jin-Soo Park
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Abstract
A magnetizing motor having a permanent magnet body covering an outer circumferential surface of a rotor body, includes a speed detecting unit that detects a speed of the magnetizing motor; and a controlling unit that compares the speed detected by the speed detecting unit with a reference speed, and outputs a magnetizing control signal based on the result of the comparison.
Claims20
A magnetizing motor having a permanent magnet body covering an outer circumferential surface of a rotor body, said magnetizing motor comprising:
- a speed detecting unit that detects a speed of the magnetizing motor;
- and
- a controlling unit that compares the speed detected by the speed detecting unit with a reference speed, and outputs a magnetizing control signal based on the result of the comparison;
- wherein when the detected speed is consistent with the reference speed, the controlling unit outputs a magnetizing control signal to generate a magnetizing current of several cycles for a constant time.
A magnetizing motor having a permanent magnet body covering an outer circumferential surface of a rotor body, said magnetizing motor comprising:
- a speed detecting unit that detects a speed of the magnetizing motor;
- a controlling unit that compares the speed detected by the speed detecting unit with a reference speed, and outputs a magnetizing control signal based on the result of the comparison;
- a switching unit switched by the magnetizing control signal, that conducts a magnetizing current of several cycles for a constant time;
- and
- a magnetizing coil that generates flux by the magnetizing current of several cycles and magnetizes the permanent magnet body.
A magnetizing motor having a permanent magnet body covering an outer circumferential surface of a rotor body, the magnetizing motor comprising:
- a speed detecting unit that detects a speed of the magnetizing motor;
- a controlling unit that compares a speed detected by the speed detecting unit with a reference speed, and outputs a magnetizing control signal based on the result of the comparison;
- a switching unit switched by the magnetizing control signal, that conducts a magnetizing current of one cycle for a constant time with a constant interval;
- and
- a magnetizing coil that generates flux by the magnetizing current of one cycle and thus magnetizes the permanent magnet body.
A magnetizing method for a magnetizing motor having a permanent magnet body covering an outer circumferential surface of a rotor body, the method comprising:
- detecting a speed of the rotor;
- comparing the detected speed with a reference speed;
- and
- when the detected speed is consistent with the reference speed, applying a magnetizing current of several cycles to a magnetizing coil for a constant time, thereby magnetizing the permanent magnet body.
A magnetizing method for a magnetizing motor having a permanent magnet body covering an outer circumferential surface of a rotor body, the method comprising:
- detecting a speed of the rotor;
- comparing the detected speed with a reference speed;
- and
- when the detected speed is consistent with the reference speed, applying a magnetizing current of one cycle to a magnetizing coil for a constant time with a constant interval, thereby magnetizing the permanent magnet body.
Dependencies are inferred from the claim text.