Method and system for reminding replacement of filter of vacuum cleaner and vacuum cleaner
US11950753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2019 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Sep 19, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/2889
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present disclosure discloses a method for reminding a replacement of a filter of a vacuum cleaner, including: obtaining a rotating speed difference of a motor within a set time interval; comparing, according to a working parameter of the vacuum cleaner, the rotating speed difference with a preset rotating speed difference threshold, to obtain a comparison result; and determining whether to remind a user to replace the filter according to the comparison result. With the method provided by the present disclosure, the vacuum cleaner may timely and automatically remind the user to replace the filter during the use of the vacuum cleaner, thereby reducing power loss, maintaining the normal use of the vacuum cleaner, and prolonging the service life of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.