Cooking appliance door with an inner borosilicate glass window pane and cooking appliance with said door

Inactive Publication Date: 2005-05-05
BSH BOSCH & SIEMENS HAUSGERAETE GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012] It is an object of the present invention to provide a cooking appliance door of the above-described type with an inner window pane comprising boro

Problems solved by technology

High-quality glass is used for door panels of cooking appliances because of this high heat load.
Since the current enamel paints are not heavy-metal-free, especially not lead-free, there is a danger the heavy metals, especially lead, could be volatilized in the cooking compartment at higher operating temperatures because of the color printing on the exposed side in direct contact w

Method used

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  • Cooking appliance door with an inner borosilicate glass window pane and cooking appliance with said door
  • Cooking appliance door with an inner borosilicate glass window pane and cooking appliance with said door
  • Cooking appliance door with an inner borosilicate glass window pane and cooking appliance with said door

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Embodiment Construction

[0023] This inner window pane 1 is exposed to the highest temperatures because it is immediately adjacent to the hot oven muffle or cooking compartment 30 (FIG. 2) during operation of the cooking appliance 10. This is especially true during pyrolytic self-cleaning, in which temperatures of over 500° C. are present in the cooking compartment 30. Because of this reason the inner window pane 1 of the cooking appliance door 20 is made from borosilicate glass, preferably from a pre-stressed borosilicate glass, which has a high resistance to these high temperatures and a small thermal expansion coefficient. The color printing or paint layer 2 is printed on one side of the inner window pane, which is an interior side as shown in this embodiment. The color printing or paint layer 2 can form a colored surface or also letters or symbols, which provide a hint or suggestion for the operator, especially of different cooking programs that the cooking appliance can perform. The color printing or p...

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Abstract

The cooking appliance door has a borosilicate glass inner window pane, on which a paint layer and an infrared-reflecting layer are applied. The paint layer is high-temperature-resistant non-enamel paint with an organic or inorganic binder. In order to provide especially good adherence and high scratch resistance for the paint layer, the paint layer is applied directly on one side of the inner window pane and the infrared-reflecting layer is applied on and over this paint layer. A cooking appliance with this cooking appliance door is also part of this invention.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The invention relates to a cooking appliance door with an inner window pane comprising a borosilicate glass, on which a paint layer made from a high-temperature-resistant non-enamel paint with an organic or inorganic binder and an infrared-reflecting layer are applied. The invention also relates to a cooking appliance with this sort of door. [0003] 2. Description of the Related Art [0004] A household cooking appliance, especially an oven, has a cooking chamber or compartment with an opening, which is closable by a cooking appliance door with an observation or viewing window. Cooking appliances with a door that is completely glass are known. A baking oven with an oven muffle acting as cooking compartment is a typical currently known household appliance. This sort of baking oven has been equipped to a large extent with a pyrolytic self-cleaning means, by which cooking residues are decomposed to ash at pyrolysis temper...

Claims

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Application Information

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IPC IPC(8): C03C17/34C03C17/42F24C14/00F24C15/04
CPCC03C17/3411F24C15/04C03C17/42
Inventor HAUSTEIN, HOLGERSCHWARZ, ERHARDLEBACHER, RAINERWAGNER, MICHAELROCH, KLEMENSSCHNELL, WOLFGANG
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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