Control circuit assembly for heating elements in cooking plates

Details

Inventors: Bredel, Walter; Schenetin, Norbert; Waigand, Helmut;
Assignee: Bosch-Siemens Hausgeraete GmbH (Stuttgart, DE)
Primary Examiner: Mayewsky; Volodymyr Y.
Assistant Examiner:
Attorney, Agent or Firm: Lerner; Herbert L., Greenberg; Laurence A.

A control circuit assembly, includes a cooking plate having at least two individual cooking regions being electrically connectible in common for cooking together, heating elements being disposed in the cooking regions of the cooking plate and having inputs, current circuits connected to the heating elements, an electronic control device connected to the inputs of the heating elements for producing variable heating power outputs, heating power control devices respectively associated with the heating elements, and switching elements disposed in the current circuits for selectively connecting each of the respective heating elements in the individual cooking regions to one of the heating power control devices in a first switching mode, and for connecting the heating elements of the individual cooking regions together to one of the heating power control devices while disconnecting the other heating power control devices from the respective heating elements with which they are associated in a second switching mode.

DETAILED DESCRIPTION We claim: 1.
Control circuit assembly, comprising a cooking plate having at least two individual cooking regions being electrically connectible in common for cooking together, heating elements being disposed in said cooking regions of said cooking plate and having inputs, current circuits connected to said heating elements, an electronic control device connected to said inputs of said heating elements for producing variable heating power outputs, heating power control devices respectively associated with said heating elements, and switching elements disposed in said current circuits for selectively connecting each of said respective heating elements in said individual cooking regions to one of said heating power control devices in a first switching mode, and for connecting said heating elements of said individual cooking regions together to one of said heating power control devices while disconnecting the other heating power control devices for said respective heating elements with which they are associated in a second switching mode.
2.
Control circuit assembly according to claim 1, wherein said cooking plate includes an intermediate cooking region disposed between said individual cooking regions, one of said heating elements is disposed in said intermediate cooking region, and in said second switching mode when said heating elements of said individual cooking regions are connected together to said one heating power control device, said heating element of said intermediate cooking region is exclusively connected to a single one of said heating power control devices.
3.
Control circuit assembly according to claim 1, wherein at least one of said cooking regions of said cooking plate is in the form of a central heating zone having one of said heating elements disposed therein and a rim heating zone having another of said heating elements disposed therein, said one and other heating elements are controllable together by one of said heating power control devices, and in said second switching mode said heating element of said rim heating zone is disconnected

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