Multi-motor driving device and apparatus and method of driving motor for washing machine using same
US9577554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2015 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Jul 14, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor driving apparatus for a washing machine, in which a motor is a washing machine motor with a double stator and a double rotor respectively having first and second U-phase, V-phase, and W-phase stator coils, includes: a motor controller for generating a drive signal in accordance with a washing mode, a rinsing mode and a dewatering mode; an inverter for generating a three-phase alternating-current (AC) power, in which any one-phase AC power of the three-phase AC power is applied in common to any one-phase stator coil of the first and second U-phase, V-phase, and W-phase stator coils for the washing machine motor; and a switching unit for switching to apply the remaining two-phase AC power of the three-phase AC power to any two-phase stator coils of the remaining two-phase stator coils of the first and second U-phase, V-phase, and W-phase stator coils for the washing machine motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.