Induction heating apparatus
US9426846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2011 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Oct 17, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2213/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an induction heating apparatus, an infrared-ray detection portion includes an infrared-ray reception portion adapted to receive infrared rays radiated from an object to be heated, an amplification portion adapted to amplify a detection signal from the infrared-ray reception portion to form an infrared-ray detection signal, and a temperature detection portion adapted to detect the temperature of the infrared-ray detection portion and to output the temperature to the control portion. The control portion is adapted to correct the infrared-ray detection signal to form an infrared-ray real signal, when the temperature of the infrared-ray reception portion is equal to or higher than a temperature to be detected by the infrared-ray detection portion, based on information about a negative signal superimposed on the infrared-ray detection signal outputted from the infrared-ray detection portion, which is negative-signal information about the negative signal with the reverse polarity from that of the infrared-ray detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.