Washing machine and control method of the same
US10570549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2017 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Aug 9, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F34/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A washing machine includes a main body; a washing tub provided inside the main body to receive washing water; a dewatering tub rotatably provided inside the washing tub; a driving device configured to supply a rotational force; a clutch unit to operate in a first mode in which the rotational force generated in the driving device is transmitted to the dewatering tub and a second mode in which the rotational force is not transmitted to the dewatering tub; a clutch motor to switch an operation mode of the clutch unit; and a cam switch switched from a switch-off state to a switch-on state, wherein the cam switch outputs pulses having the same period as a frequency of AC power supplied to the clutch motor in the switch-on state, and when the cam switch is switched from the switch-off state to the switch-on state, the clutch unit is stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.