Induction heating cooker
US8350197B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2007 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Nov 1, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2213/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An induction heating cooker including a top plate where a pan is placed; a heating coil for induction heating the pan; an inverter circuit for supplying a high frequency current to the heating coil; an infrared sensor, which is arranged under the heating coil and detects an infrared light radiated from the pan; a light guiding part including an upper opening formed at an upper end facing the top plate and a lower opening formed at a lower end, and guiding the infrared light from the pan to the infrared sensor; and a control unit for controlling an output of the inverter circuit according to an output from the infrared sensor; wherein the light guiding part includes a nonmetallic material part in which the upper opening is formed upper than a lower surface of the heating coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.