Household appliance

Patent metadata

Field	Value
Publication number	US-9534793-B2
Application number	US-201113521758-A
Country	US
Kind code	B2
Filing date	Jan 12, 2011
Priority date	Jan 13, 2010
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

A household appliance, in particular a cooking hob device, includes at least one thermochromic and/or thermoluminescent element that contains at least one vanadium-containing material. The material containing vanadium can be a semiconductor in at least one temperature range, e.g. a doped semiconductor in the temperature range, and may include vanadium dioxide.

First claim

The invention claimed is:

1. A household appliance apparatus, comprising a layered structure including:
at least one member selected from the group consisting of a thermochromic element and a thermoluminescent element, said member having at least one material containing vanadium,
wherein the member has a first main face and at least a second main face, each of the first and second main faces at least predominantly resting against at least one further element in at least one operating state; and
a structural element having a face which is a main cookware support surface of a cooktop for positioning a number of cookware elements,
wherein the at least one further element includes a glass ceramic plate that is disposed beneath the main cookware support surface and that extends under an overall area of the main cookware support surface when viewed from above, and
wherein the member is disposed beneath the glass ceramic plate and the at least one material containing vanadium extends under at least fifty percent of the overall area of the main cookware support surface when viewed from above to thereby render at least part of a hot region outline visible over at least a significant part of the main cookware support surface and to shield electronic components, which are disposed under the layered structure, from heat radiation from the hot region.

2. The household appliance apparatus of claim 1 , constructed in the form of a cooktop apparatus.

3. The household appliance apparatus as of claim 1 , wherein the material containing vanadium is a semiconductor in at least one temperature range.

4. The household appliance apparatus as of claim 3 , wherein the material containing vanadium is a doped semiconductor in the temperature range.

5. The household appliance apparatus as of claim 1 , wherein the material containing vanadium includes vanadium dioxide.

6. The household appliance apparatus as of claim 1 , wherein the main cookware support surface is configured to at least predominantly form a cookware heating zone.

7. The household appliance apparatus as of claim 1 , further comprising at least one upper visible unit, which is free of cooking zone markings in at least one ready-to-operate state.

8. The household appliance apparatus as of claim 1 , further comprising at least one element containing silicon, which is connected in a material manner to the member.

9. A household appliance, comprising a household appliance apparatus comprising a layered structure including:
at least one member selected from the group consisting of a thermochromic element and a thermoluminescent element, said member having at least one material containing vanadium,
wherein the member has a first main face and at least a second main face, each of the first and second main faces at least predominantly resting against at least one further element in at least one operating state; and
a structural element having a face which is a main cookware support surface of a cooktop for positioning a number of cookware elements,
wherein the at least one further element includes a glass ceramic plate that is disposed beneath the main cookware support surface and that extends under an overall area of the main cookware support surface when viewed from above, and
wherein the member is disposed beneath the glass ceramic plate and the at least one material containing vanadium extends under at least fifty percent of the overall area of the main cookware support surface when viewed from above to thereby render at least part of a hot region outline visible over at least a significant part of the main cookware support surface and to shield electronic components, which are disposed under the layered structure, from heat radiation from the hot region.

10. The household appliance of claim 9 , constructed in the form of a cooktop.

11. The household appliance of claim 9 , constructed in the form of an induction cooktop.

12. The household appliance as of claim 9 , wherein the material containing vanadium is a semiconductor in at least one temperature range.

13. The household appliance as of claim 12 , wherein the material containing vanadium is a doped semiconductor in the temperature range.

14. The household appliance as of claim 9 , wherein the material containing vanadium includes vanadium dioxide.

15. The household appliance as of claim 9 , wherein the main cookware support surface is configured to at least predominantly form a cookware heating zone.

16. The household appliance as of claim 9 , wherein the household appliance apparatus includes at least one upper visible unit, which is free of cooking zone markings in at least one ready-to-operate state.

17. The household appliance as of claim 9 , wherein the household appliance apparatus includes at least one element containing silicon, which is connected in a material manner to the member.

18. A household appliance production method, comprising applying at least one member selected from the group consisting of a thermochromic element and thermoluminescent element to a least one component at least by sputtering, wherein the member has a first main face and at least a second main face, each of the first and second main faces at least predominantly resting against at least one further element in at least one operating state; and
forming a structural element having a face which is a main cookware support surface of a cooktop for positioning a number of cookware elements,
wherein the at least one further element includes a glass ceramic plate that is disposed beneath the main cookware support surface and that extends under an overall area of the main cookware support surface when viewed from above, and wherein the member is disposed beneath the glass ceramic plate and the member includes at least one material containing vanadium extending under at least fifty percent of the overall area of the main cookware support surface when viewed from above to thereby render at least part of a hot region outline visible over at least a significant part of the main cookware support surface and to shield electronic components, which are disposed under the main cookware support surface, from heat radiation from the hot region.

19. The method of claim 18 for producing a household appliance apparatus, the household appliance apparatus comprising at least one member selected from the group consisting of a thermochromic element and thermoluminescent element, said member having at least one material containing vanadium, wherein the member has a first main face and at least a second main face, each of the first and second main faces at least predominantly resting against at least one further element in at least one operating state.

20. The household appliance apparatus of claim 1 , wherein the apparatus is a cooktop apparatus, wherein the main cookware support surface extends over an entire length and an entire width of the cooktop apparatus.

21. The household appliance apparatus of claim 20 , wherein the member extends beneath the entire length and the entire width of the cooktop apparatus.

22. The household appliance apparatus of claim 20 , wherein the member is disposed at a distance from the main cookware support surface.

23. The household appliance of claim 9 , wherein the apparatus is a cooktop apparatus,
wherein the main cookware support surface extends over an entire length and an entire width of the cooktop apparatus.

24. The household appliance of claim 23 , w

Assignees

• Buñuel Magdalena Miguel Angel
• Dionisio Micolau Diego
• Escartin Barduzal Andres
• Ester Sola Francisco Javier
• Merino Rubio Rosa Isabel
• Perez Cabeza Pilar
• Planas Layunta Fernando
• Torrubia Marco Demetrio
• Bsh Hausgeraete Gmbh

Inventors

• Buñuel Magdalena Miguel Angel
• Dionisio Micolau Diego
• Escartin Barduzal Andres
• Ester Sola Francisco Javier
• Merino Rubio Rosa Isabel
• Perez Cabeza Pilar
• Planas Layunta Fernando
• Torrubia Marco Demetrio

Classifications

• H05B6/062

  for cooking plates or the like · CPC title

• H05B6/1218 Primary

  with arrangements using lights for heating zone state indication · CPC title

• A47J36/02

  Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay · CPC title

• F24C15/102 Primary

  electrically heated · CPC title