INDUCTION HEATING DEVICE AND LOAD DETECTION METHOD IN INDUCTION HEATING DEVICE

In a multi-coil induction heating device, a detection current is supplied to all of a plurality of heating coils (3) by driver (4) and switching unit (8). Controller (50) determines whether a load is placed above the plurality of heating coils (3) based on an electric signal in response to the detec...

Full description

Saved in:
Bibliographic Details
Main Authors TAKEBE, Masaya, KINOSHITA, Masashi, KUROSE, Yoichi
Format Patent
LanguageEnglish
French
German
Published 22.01.2020
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
Online AccessGet full text

Cover

More Information
Summary:In a multi-coil induction heating device, a detection current is supplied to all of a plurality of heating coils (3) by driver (4) and switching unit (8). Controller (50) determines whether a load is placed above the plurality of heating coils (3) based on an electric signal in response to the detection current. When determining that the load is placed above the plurality of heating coils (3), controller (50) determines whether the load is placed above each of the plurality of heating coils (3) by sequentially and independently supplying the detection current to each of the plurality of heating coils (3). After the determination for each of the plurality of heating coils (3) is performed, switching unit (8) connects all heating coils (3) to driver (4). According to this aspect, energy-saving and accurate load detection is possible in a short time in the multi-coil induction heating device.
Bibliography:Application Number: EP20170845833