Cooking apparatus having lighting elements

Patent metadata

Field	Value
Publication number	US-10228146-B2
Application number	US-201414332432-A
Country	US
Kind code	B2
Filing date	Jul 16, 2014
Priority date	Jul 16, 2013
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

A cooking apparatus with a cooktop composed of a glass or glass-ceramic material is provided. The cooking apparatus includes a heating element and a lighting element that are disposed in the region below the underside of the cooktop. The heating element is applied to the underside of the cooktop indirectly by a pressing device or directly by pre-stressing one or a plurality of spring elements. The lighting element and the heating element are disposed on a common support section of the pressing device in such a way that they are adjustable with an oscillation of the cooktop.

First claim

What is claimed is:

1. A cooking apparatus comprising:
a cooktop of a glass or a glass-ceramic material, the cooktop having an underside;
a plurality of heating elements;
alighting element;
a spring-action support; and
a light-scattering element connected to the underside of the cooktop, either adhesively or via pressing forces, wherein the light-scattering element causes a widening of an observation angle and a reduction in a parallax shift for a user,
wherein the heating elements and the lighting element are each mounted on top of the spring-action support so that the heating elements and the lighting element are on the same plane,
wherein the heating elements contact the underside of the cook-top, either directly or indirectly, and there is a gap of between 0.2 mm to 10 mm between the lighting element and the underside of the cook-top, and
wherein the lighting element and the heating elements are adjusted by a deflection or oscillation of the cooktop.

2. The cooking apparatus according to claim 1 , wherein when the cooktop deflects or oscillates, the spring-action support deflects or oscillates accordingly, so that the gap between the lighting element and the underside of the cooktop does not change.

3. The cooking apparatus according to claim 1 , wherein the spring-action support comprises a spring that is deflected with the adjustment of the lighting element and the heating elements.

4. The cooking apparatus according to claim 1 , wherein the spring-action support is elastic.

5. The cooking apparatus according to claim 1 , wherein the lighting element is connected to the spring-action support by a spring.

6. The cooking apparatus according to claim 1 , wherein the plurality of heating elements are in a row on the spring-action support.

7. The cooking apparatus according to claim 6 , wherein the spring-action support is a plurality of supports, which extend underneath the cooktop.

8. The cooking apparatus according to claim 1 , further comprising a housing that receives the heating elements and the lighting element.

9. The cooking apparatus according to claim 8 , wherein the spring-action support is a disk, and comprises at least one uptake formed laterally for the lighting element.

10. The cooking apparatus according to claim 8 , wherein the heating elements and the lighting element are electrified at a common electrical connection on the spring-action support.

11. The cooking apparatus according to claim 1 , wherein the heating elements are two heating elements, and wherein the lighting element is between the two heating elements.

12. The cooking apparatus according to claim 1 , wherein the lighting, element comprises a lighting source and a light guide having a light guide segment, into which the lighting source couples light, and the light guide segment has an emission region, over which the light of the lighting source can be emitted onto the underside of the cooktop.

13. The cooking apparatus according to claim 12 , wherein the light guide segment comprises two light guide segments that transition into one another via a bend.

14. The cooking apparatus according to claim 12 , wherein the emission region is formed a convex surface or a planar surface of the light guide segment.

15. The cooking apparatus according to claim 12 , wherein the light guide segment is a flat surface element.

16. The cooking apparatus according to claim 12 , wherein the underside of the cooktop has a knobbed structure, and the apparatus further comprises a filler layer of transparent material on the underside at least in portions of the emission region.

17. The cooking apparatus according to claim 1 , wherein the cooktop has a portion with an average transmission that is >0.1% for at least one of the spectral regions from 420 to 500 nm, 500 to 550 nm, and 550 to 640 nm.

18. The cooking apparatus according to claim 17 , wherein the portion has a coating.

19. The cooking apparatus according to claim 17 , wherein the average transmission is >0.1%, in each case, for each of the spectral regions.

20. The cooking apparatus according to claim 17 , wherein the average transmission is >0.4%.

21. The cooking apparatus according to claim 1 , wherein the cooktop has a portion with a maximum transmission that is <50% in the spectral region from 400 to 750 nm and <8% in the spectral region from 450 to 600 nm.

22. The cooking apparatus according to claim 1 , further comprising an optical compensation filter between an upper side of the cooktop and the lighting element.

23. The cooking apparatus according to claim 1 , further comprising a light-scattering element between the lighting element and an upper side of the cooktop.

24. The cooking apparatus according to claim 1 , wherein the cooktop comprises a coating on at least one of an upper side and the underside.

25. The cooking apparatus according to claim 1 , wherein the plurality of heating elements or the lighting element is in heat-conducting contact with a heat sink, and wherein the heat sink is on the common support section.

26. A cooking apparatus comprising:
a cooktop of a glass or a glass-ceramic material, the cooktop having an underside;
a plurality of heating elements;
a lighting element;
a spring-action support; and
a light-scattering element connected to the underside of the cooktop, either adhesively or via pressing forces, wherein the light-scattering element causes a widening of an observation angle and a reduction in a parallax shift for a user,
wherein the plurality of heating elements and the lighting element are each mounted on the spring-action support so that the heating elements and the lighting element are on the same plane,
wherein the heating elements contact the underside of the cooktop, and there is a gap between the lighting element and the underside of the cook-top,
wherein the lighting element and the heating elements move with a deflection or oscillation of the cooktop,
wherein the heating elements are in a row on the spring-action support, and
wherein the spring-action support is a plurality of supports, which extend underneath the cooktop.

27. A cooking apparatus comprising:
a cooktop of a glass or a glass-ceramic material, wherein the cooktop has an underside;
a heating element;
a lighting element; and
a spring-action support,
wherein the heating element and the lighting element are each mounted to the spring-action support so that the heating element and the lighting element are on the same plane,
wherein the heating element contacts the underside of the cooktop, either directly or indirectly, and there is a gap of between 0.2 mm to 10 mm between the lighting element and the underside of the cooktop, and
wherein the lighting element and the heating element are adjusted by a deflection or oscillation of the cooktop.

Assignees

• Schott Ag

Inventors

• Zenker Thomas
• Ohl Gerold
• Woelfing Bernd
• Uam Ju-Young
• Taplan Martin

Classifications

• H05B3/742

  Plates having both lamps and resistive heating elements · CPC title

• F24C7/067

  on ranges · CPC title

• F24C15/10

  Tops, e.g. hot plates; Rings (cover lids or splash guards F24C15/12; spillage trays or grooves F24C15/14) · CPC title

• F24C15/108

  Mounting of hot plate on worktop · CPC title

• H05B3/746

  Protection, e.g. overheat cutoff, hot plate indicator · CPC title