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Household appliance cover plate comprising an internal laser engraving

A technology for household appliances and cover plates, which is applied to the top of stoves/stoves, etc., can solve the problems of fragility and cost, and achieve the effect of improving heat shielding

Inactive Publication Date: 2012-07-11
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This glass-ceramic material is more expensive and / or fragile than black glass-ceramic

Method used

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  • Household appliance cover plate comprising an internal laser engraving
  • Household appliance cover plate comprising an internal laser engraving
  • Household appliance cover plate comprising an internal laser engraving

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 Shows a household appliance arrangement with a household appliance cover designed as a hob cover for an induction cooktop and made of black lithium-aluminum-silicate glass material or glass ceramic Material composition. The cover includes built-in thermal insulation means 22 embedded in the glass material or glass-ceramic material for shielding the heat input from a hot cooking pot which can be placed on the cover. The thermal insulation mechanism 22 prevents the heat radiated from the cooking pot from heating the cover plate, which in turn heats and damages the electronics of the induction hob.

[0028] In a manner known per se, the cover closes upwardly the hob housing (not shown here) of the induction hob. Arranged in the hob housing are the power electronics of the induction hob as well as inductors for inductively heating cookware components placed on the hob. For the inductive heating of cookware parts, the inductor generates a high-frequency alternati...

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PUM

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Abstract

The invention relates to a household appliance cover plate made of a glass or glass ceramic material having an internal laser engraving (12). In order to reduce the variety of components, the invention proposes that the glass or glass ceramic material is black.

Description

technical field [0001] The invention relates to a domestic appliance cover made of a glass material or a glass-ceramic material according to the preamble of claim 1 with a laser-internal molding. Background technique [0002] It is known from the prior art that brand symbols in the corner area of ​​domestic appliances are embedded in glass or glass-ceramic materials using a technique known per se, namely laser internal molding. In the case of laser-internal cavities, the laser is focused on a point inside the glass or glass-ceramic material, causing the material there to heat up dramatically. Upon heating and / or cooling, microscopic cracks and / or crystallite structures are produced in precisely limited areas, the size of which varies from a few micrometers to several hundred micrometers. This changes the refractive properties in this region, causing light scattering and / or reflection. Laser energy is used to specifically embed such light-scattering centers to produce the t...

Claims

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Application Information

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IPC IPC(8): C03C23/00F24C15/10
CPCC03C10/00C03C23/0025F24C15/10
Inventor M.A.布努尔马格达莱纳J.塞马诺斯加亚F.J.埃斯特索拉J-R.加西亚吉梅内斯S.洛伦特吉尔A.洛伦特佩雷斯C.V.马拉尔塞拉诺R.I.梅里诺鲁比奥V.M.奥雷拉克莱门特J.I.佩纳托雷R.施马伦斯特罗特D.索拉马蒂内斯
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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