F - Mech Eng,Light,Heat,Weapons – 24 – C
Patent
F - Mech Eng,Light,Heat,Weapons
24
C
31/133, 327/19
F24C 15/10 (2006.01) H05B 6/12 (2006.01)
Patent
CA 1236176
TITLE OF THE INVENTION A Cold Electric Burner ABSTRACT OF THE DISCLOSURE A cold electric burner or a ceramics hob which heats conductive food and/or a conductive pan through hysterisis loss and/or eddy current loss by exciting a coil with high frequency power, comprises a casing, a coil mounted on a coil support, and an insulation cover plate between said coil and food to be cooked. Said coil support is made of ferro-magnetic material of mixture of insulation resin and ferrite powder which occupies 75-85 weight %, instead of a prior mere insulation resin so that no flux leaks below the coil support. Preferably, the coil support has a plurality of longitudinal ferrite ribs extending radially under said coil support, and still preferably, the coil support has a plurality of holes at the central portion of the same so that permeability at the central portion is essentially smaller than that at the outer portion to provide uniform flux.
478749
Kato Namio
Takeda Tadao
Ridout & Maybee Llp
Tdk Corporation
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