INDUCTIVE HEATING COOKER

WIPO Patent Application WO/2018/211745

A1

Provided is an inductive heating cooker capable of supplying power to a plurality of heating coils at the same time or by switching the coils. The inductive heating cooker includes: first and second heating coils; a first secondary coil connected to the first heating coil and a second secondary coil connected to the second heating coil; first and second power supply units for supplying electric power to the first and second heating coils, respectively; a high-frequency power generation circuit; a switching unit that supplies high-frequency power to a first or second primary coil or the first and second primary coils which are connected in parallel, by switching the coils; and a control unit that selects the power-supply primary coil to be supplied with power. The first power supply unit is a transformer in which a winding portion of the first secondary coil, an N1 winding portion of the first primary coil and an N3 winding portion of the second primary coil are wound around the core. The second power supply unit is a transformer in which a winding portion of the second secondary coil and an N2 winding portion of the first primary coil are wound around the core. The number of turns of the N1 winding portion is different from the number of turns of the N2 winding portion.

KUWANO HIROHISA (JP)
TAKESHITA MIYUKI (JP)
YABUMOTO TAKUYA (JP)
ASAKURA RYOTA (JP)
SUGA IKURO (JP)
BUNYA JUN (JP)
KAMEOKA KAZUHIRO (JP)

PCT/JP2018/002658

November 22, 2018

January 29, 2018

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MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC HOME APPLIANCE CO LTD (JP)

H05B6/12

JP2013179077A	2013-09-09
JPH0982467A	1997-03-28
JPS60225391A	1985-11-09

SAMEJIMA, Mutsumi et al. (JP)

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