Laundry treatment machine
US11905637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2019 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Nov 6, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present disclosure relates to a laundry treatment machine. A drain laundry treatment machine according to an embodiment of the present disclosure: an inverter converting a direct current (DC) voltage from a converter into an alternating current (AC) voltage based on a switching operation and outputting the converted AC voltage to a drain motor; an output current detector to detect an output current flowing in the drain motor; and a controller to control the drain motor to rotate at a speed lower than a first speed when the output current flowing in the drain motor decreases in a state where a speed of the drain motor is the first speed. Accordingly, it is possible to reduce a pressure in a vortex chamber of the drain pump during dewatering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.