Cooking appliance

Patent metadata

Field	Value
Publication number	US-11438975-B2
Application number	US-201716466048-A
Country	US
Kind code	B2
Filing date	Dec 12, 2017
Priority date	Dec 23, 2016
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

A cooking appliance, in particular an induction oven appliance, includes a cavity having a wall, at least one induction heating element, and at least one electrically conductive screening element for screening an electric and/or magnetic field generated by the induction heating element. The induction heating element can be arranged on the wall of the cavity.

First claim

The invention claimed is:

1. A cooking appliance, in particular an induction oven appliance, comprising:
an induction heating element;
a substantially plate-like electrically conductive screening element configured to screen an electrical and/or magnetic field generated by the induction heating element; and
an electrical insulation element,
wherein the induction heating element is located between the electrically conductive screening element and the electrical insulation element, and
the cooking appliance is configured free of ferrites provided for conducting a magnetic field generated by the induction heating element.

2. The cooking appliance of claim 1 , further comprising a cavity having a wall, said electrical insulation element being arranged on the wall of the cavity.

3. The cooking appliance of claim 1 , further comprising a cavity having a wall, said screening element being arranged at least in part on a side of the induction heating element which side is remote from the wall of the cavity.

4. The cooking appliance of claim 1 , wherein the screening element is made at least largely from aluminum and/or an aluminum alloy.

5. The cooking appliance of claim 1 , further comprising a thermal insulation element arranged at least in part between the screening element and the induction heating element.

6. The cooking appliance of claim 5 , wherein the thermal insulation element directly adjoins at least one of the screening element and the induction heating element.

7. The cooking appliance of claim 5 , wherein the screening element is directly contacting the thermal insulation element, the thermal insulation element is directly contacting the induction heating element, and the induction heating element is directly contacting the electrical insulation element.

8. The cooking appliance of claim 1 , further comprising a cavity having a wall, said induction heating element being spaced by at most 3 mm from the wall of the cavity.

9. The cooking appliance of claim 1 , further comprising a cavity having a wall, said screening element being spaced from the wall of the cavity by at least 20 mm.

10. The cooking appliance of claim 1 , further comprising a cavity having a wall, said induction heating element being configured to heat the wall of the cavity inductively.

11. The cooking appliance of claim 10 , wherein in at least one operating condition, the induction heating element heats up the wall of the cavity to a temperature of at least 300° C.

12. The cooking appliance of claim 1 , wherein the screening element is directly contacting the induction heating element, and the induction heating element is directly contacting the electrical insulation element.

13. A cooker, in particular an induction oven, comprising a cooking appliance, said cooking appliance comprising:
a cooking cavity having a wall;
an induction heating element;
a substantially plate-like electrically conductive screening element configured to screen an electrical and/or magnetic field generated by the induction heating element; and
an electrical insulation element which is arranged at least in part between the induction heating element and the wall of the cavity
wherein the cooker is configured free of ferrites provided for conducting a magnetic field generated by the induction heating element.

14. The cooker of claim 13 , wherein said screening element is arranged at least in part on a side of the induction heating element which side is remote from the wall of the cavity.

15. The cooker of claim 13 , wherein the screening element is made at least largely from aluminum and/or an aluminum alloy.

16. The cooker of claim 13 , wherein the cooking appliance includes a thermal insulation element arranged at least in part between the screening element and the induction heating element.

17. The cooker of claim 16 , wherein the thermal insulation element directly adjoins at least one of the screening element and the induction heating element.

18. The cooker of claim 16 , wherein the screening element is directly contacting the thermal insulation element, the thermal insulation element is directly contacting the induction heating element, and the induction heating element is directly contacting the electrical insulation element.

19. The cooker of claim 13 , wherein said induction heating element is spaced by at most 3 mm from the wall of the cavity.

20. The cooker of claim 13 , wherein said screening element is spaced from the wall of the cavity by at least 20 mm.

21. The cooker of claim 13 , wherein said induction heating element is configured to heat the wall of the cavity inductively.

22. The cooker of claim 21 , wherein in at least one operating condition, the induction heating element heats up the wall of the cavity to a temperature of at least 300° C.

Assignees

• Bsh Hausgeraete Gmbh

Inventors

• Acero Acero Jesus
• Carretero Chamarro Claudio
• De La Cuerda Ortin Jose Maria
• Galindo Perez Juan Jose
• Hernandez Blasco Pablo Jesus
• Jaca Equiza Izaskun
• Lope Moratilla Ignacio

Classifications

• H05B6/362

  with flat coil conductors · CPC title

• H05B6/40

  Establishing desired heat distribution, e.g. to heat particular parts of workpieces · CPC title

• H05B6/129 Primary

  induction ovens · CPC title

• H05B11/00

  Heating by combined application of processes covered by two or more of groups H05B3/00 - H05B7/00 (H05B7/20 takes precedence) · CPC title

• F24C7/00

  Stoves or ranges heated by electric energy (stoves or ranges specially adapted for the use of two or more kinds of fuel or energy supply F24C1/02) · CPC title