Coil apparatus of mobile terminal
US9947990B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2013 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A coil apparatus of a mobile terminal is disclosed, comprising: a metal coil embedded, in a flat spiral shape, in an inner side of a rear cover of a mobile terminal; an analog switch connected between the metal coil, a wireless charging chip and a signal receiving chip. The embodiment of the present document combines an antenna for receiving a frequency modulated signal with a wireless charging coil, and uses a same group of coils, and embeds the metal coil in the inner side of the rear cover of the mobile terminal, which increases the area of the coil and lengthens the length of the coil, simultaneously improves the efficiency of the wireless charging and the performance for receiving the frequency modulated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.