Personal cleaning care appliance
US10463460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2015 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Feb 26, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cleaning care appliance comprises a transducer comprising a drive shaft and magnets arranged on the left and right sides of the longitudinal axis of the drive shaft. The magnets are independent of each other, the polarity of the magnetic pole of one side of the magnet is opposite to that of the other side in the direction facing driving coil, the angle between the direction of magnetic force lines inside the magnets and the direction of the longitudinal axis of driving coil iron core is greater than 45° and smaller than 135°, the magnets move with respect to the elastic element retainer. When alternating current flows through the drive coil, the angle between magnet movement direction and the longitudinal axis of the core is greater than 170° and smaller than 190°. The appliance has low cost, low noise, low damping, and is safe, and reliable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.