Vacuum cleaner control method
US11805967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2020 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Jun 18, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0477
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present disclosure provides a control method capable of, by using a current value of a nozzle, determining whether a nozzle is separated from a vacuum cleaner and whether the nozzle is reconnected to the vacuum cleaner after separation. To this end, a vacuum cleaner may comprise a nozzle connectable to a suction unit for suctioning dusts. The nozzle may comprise a rotary cleaning unit for applying pressure to a cleaning target surface so as to separate a foreign substance therefrom, and a nozzle motor for driving the rotary cleaning unit. In order to drive the nozzle, a voltage having been controlled by a pulse width modulation (PWM) method is applied, and a measurement unit included in the vacuum cleaner may measure a current value of the nozzle, the current value depending on the applied voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.