Induction heating cooker

Details Induction heating cooker Induction heating cooker

2006-10-31

2006-10-31

Van, Quang (Department: 3742)

Electric heating

Inductive heating

With heat exchange

C219S626000, C219S667000, C219S494000, C099S325000

Reexamination Certificate

active

07129449

ABSTRACT:
An induction heating cooker includes an infrared sensor for sensing an infrared intensity from a load pot, a waveguide for guiding infrared radiation from the load pot to the infrared sensor, a first magnetism-proofing unit and a second magnetism-proofing unit for reducing magnetic fluxes leaking from a heating coil. Placement of the waveguide at a position lower than an upper surface of the second magnetism-proofing unit reduces self-heating of the waveguide due to magnetic flux supplied from the heating coil. As a result, a temperature rise of the infrared sensor due to radiation heat from the waveguide can be reduced, and an accuracy of sensing a temperature by the infrared sensor can be improved.

REFERENCES:
patent: 3781504 (1973-12-01), Harnden, Jr.
patent: 6169486 (2001-01-01), Berkcan et al.
patent: 6320169 (2001-11-01), Clothier
patent: 3-184295 (1991-08-01), None
patent: 3-208288 (1991-09-01), None
patent: 2002-75624 (2002-03-01), None
patent: 2003-130366 (2003-05-01), None
patent: 2003-151746 (2003-05-01), None
patent: WO 2005/009082 (2005-01-01), None

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