Heating device for a planar heater with induction heating elements
First Claim
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1. A heating device in the form of a hob comprising:
- a glass ceramic surface having a bottom side and a top side, wherein said top side is capable of supporting a cooking vessel;
a plurality of heating modules located juxtaposed relative to each other and positioned adjacent to said bottom side of said glass ceramic surface to form a heatable surface, wherein each heating module comprisesan induction heating element,a converter operatively connected to said induction heating element,a converter controller controlling only said converter, said converter controller configured to communicate over a control bus, anda power connector for conveying electrical power to said converter;
a power bus, wherein each power connector of each one of the plurality of heating modules is connected to said power bus, said power bus providing power to each of said plurality of heating modules; and
a microcontroller connected to said control bus, said microcontroller configured to communicate with each converter controller of said plurality of heating modules to control said respective heating module.
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Abstract
A heater for a hob or cooktop having a glass ceramic surface is disclosed, whereby a number of individual modules with induction coils are provided with converters and a converter control for each induction coil. The modules may be independently assembler and/or replaced, and are arranged close together beneath the glass ceramic hob and electrically connected to a busbar. Each module may be controlled separately. A heated surface of using various combinations of modules can thus be achieved.
32 Citations
25 Claims
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1. A heating device in the form of a hob comprising:
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a glass ceramic surface having a bottom side and a top side, wherein said top side is capable of supporting a cooking vessel; a plurality of heating modules located juxtaposed relative to each other and positioned adjacent to said bottom side of said glass ceramic surface to form a heatable surface, wherein each heating module comprises an induction heating element, a converter operatively connected to said induction heating element, a converter controller controlling only said converter, said converter controller configured to communicate over a control bus, and a power connector for conveying electrical power to said converter; a power bus, wherein each power connector of each one of the plurality of heating modules is connected to said power bus, said power bus providing power to each of said plurality of heating modules; and a microcontroller connected to said control bus, said microcontroller configured to communicate with each converter controller of said plurality of heating modules to control said respective heating module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification