Title:
INVERTER WASHING MACHINE
Document Type and Number:
Japanese Patent JP3714814
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an inverter washing machine that suppresses vibration and noise.
SOLUTION: In an inverter washing machine, a DC brushless motor 7 is driven by detecting the rotary position of the motor 7 by a rotor position detection means, and by supplying a three-phase AC to the motor 7 by an inverter means being incorporated into a sub control part 15. The sub control part 15 activates the motor 7 by a signal in synchronization with rotor position signals Hu, Hv, and Hw when the motor 7 is activated. When the speed of the motor reaches a specific value A, the motor 7 is driven by a predetermined signal asynchronously with the rotor position signals Hu, Hv, and Hw, thus activating the motor 7 by the signal that does not depend on the mounting position of the rotor position detection means, and hence suppressing the vibration and noise of the motor 7.
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Inventors:
Naohiko Aoki
Application Number:
JP1922299A
Publication Date:
November 09, 2005
Filing Date:
January 28, 1999
Export Citation:
Assignee:
Sharp Corporation
International Classes:
D06F33/02; H02P6/06; H02P6/08; H02P7/10; (IPC1-7): H02P6/20; D06F33/02; H02P7/10
Domestic Patent References:
| JP1303091A | ||||
| JP62002899A | ||||
| JP1303091A | ||||
| JP62002899A |
Attorney, Agent or Firm:
Shizuo Sano
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