Heating apparatus with temperature detection system for identifying and notifying the user that the material to be heated is wound around the induction heating element
US6987251B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2004 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | Dec 22, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/145
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heating apparatus has a magnetic flux generator and a rotatable induction heating element for generating heat through electromagnetic induction by the action of magnetic flux generated by the magnetic flux generator, and heats a material to be heated by causing the material to be heated to contact the induction heating element. The heating apparatus further includes a thermistor for detecting a surface temperature of the induction heating element, power supply circuits for controlling power to be supplied to the magnetic flux generator on the basis of signals from the temperature detection, a Curie temperature reaching detector for detecting that the temperature of the induction heating element reaches the Curie temperature, and control circuits for detecting that the material to be heated is wound around the induction heating element on the basis of signals from the thermistor and the Curie temperature reaching detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.