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Cooking device comprising non-planar, multi-dimensionally configured cooking surface composed of glass or glass ceramic

A glass-ceramic, non-planar technology, applied in the field of cookers, can solve the problems of high cost and uneconomical cookers, and achieve the effect of low processing cost and low material cost

Inactive Publication Date: 2004-05-12
SCHOTT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the heating of the three-dimensional shape of the cooker in this respect, it is necessary to design a heater geometrically matched to the shape of the groove for each groove body, and its cost is often significantly increased due to the small number of production pieces, thus making this Kind of cooker is not economical

Method used

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  • Cooking device comprising non-planar, multi-dimensionally configured cooking surface composed of glass or glass ceramic
  • Cooking device comprising non-planar, multi-dimensionally configured cooking surface composed of glass or glass ceramic
  • Cooking device comprising non-planar, multi-dimensionally configured cooking surface composed of glass or glass ceramic

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Embodiment Construction

[0036] figure 1 , 2 represent the first embodiment of the invention in two different views. In the present exemplary embodiment, a hemispherical cooking concavity 1 is formed of glass ceramic as the cooking surface, which has the configuration of a wok container, on which the food to be cooked 2 is located. Before the resistance heater proposed by the present invention is applied on the cleaned outer surface of the cooking concave surface 1, a metal mask must be applied on the outer surface, the thickness of which is about 2mm. Using gas plasma spraying method, coated with a for example made of Al 2 o 3 The layer thickness of the formed insulating layer 3 is selected in such a way that a dielectric strength of approximately 3750 V is obtained. This insulating layer 3 ensures electrical insulation between the glass-ceramic cooking surface, which is electrically conductive at higher temperatures, and the resistance heater, which will be described below.

[0037] according to...

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Abstract

Food is prepared either directly or indirectly on the interior of cooking surfaces of this type. A heating device for heating the food, which is characteristically configured as a flat radiant heating body, is located on the exterior of the cooking surface. The aim of the invention is to optimise thermal induction over the shaped cooking surface. To achieve this, according to the invention, the heating device consists of an electric resistance heating element, which is mounted on the exterior of the glass or glass ceramic cooking surface in direct contact therewith. Said resistance heating element can consist of a radiant panel (4) or coiled strip conductors.

Description

technical field [0001] The invention relates to a cooker with a non-planar multidimensional cooking surface made of glass or glass ceramics, on the inside of which food is cooked and whose outer surface is equipped with a heating device for heating the food . Background technique [0002] Cooktops with cooking surfaces made of fragile materials typically comprise a flat cooking plate made of glass or ceramic or glass-ceramic, on the upper surface of which cooking utensils are placed, the cooking plate has cooking zones, the cooking zones Heating is performed from below with a flat heating body. [0003] In known manner (EP0853444 A2, DE19835378 A1), oxide ceramics and non-oxide ceramics such as Si 3 N 4 or SIC, but it is known to use glass or glass-ceramic with a low coefficient of thermal expansion, preferably a glass-ceramic cooking plate, known under the trademark CERAN. These glass or glass-ceramic cooking plates are heated from below with flat radiant heating elemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J27/00A47J36/04H05B3/74
CPCH05B3/748A47J27/004A47J36/04
Inventor K·维尔姆布特H·克布里希
Owner SCHOTT AG
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