Cooktop with temperature sensor

• US 20030024923A1
• Filed: 08/16/2002
• Published: 02/06/2003
• Est. Priority Date: 02/16/2000
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: Bsh Bosch Und Siemens Hausgerate Und Siemens
• Inventors: Has, Uwe, Vetterl, Peter, Neumayer, Dan, Zeraschi, Monika, Theine, Markus, Gratz, Franz
• Granted Patent: US 6,580,058 B2
• Time in Patent Office: Days
• US Class Current: 219/452.12
• CPC Class Codes: H05B 2213/07 Heating plates with temperature control means
• CPC Class Codes: H05B 3/746 Protection, e.g. overheat cutoff, hot plate indicator

Abstract

In a cooktop having a cooktop panel, beneath which at least one heating element is disposed for heating up a vessel to be placed on the panel, and a temperature sensor sensing temperature of the underside of the panel within the heating element and connected to a control unit for controlling heating power of the heating element, to make assembly/fitting of the unit easier, the temperature sensor is fastened to an element extending from a region inside the heating element into a region outside the heating element, the element having a receiving portion inside the heating element for the temperature sensor and a fitting portion for fastening of the element, in particular, to the heating element, and/or a connection portion for connecting at least an electrical line from outside the heating element, which receiving portion lies radially offset laterally with respect to the fitting portion or connection portion.

Claims

1. A cooktop, comprising:

a cooktop panel having an underside;

at least one heating element disposed beneath said cooktop panel for heating up a cooking vessel to be placed on said cooktop panel, said at least one heating element having an inside;

a control unit electrically connected to said at least one heating element for controlling a heating power of said at least one heating element;

a temperature sensor sensing a temperature of said underside of said cooktop panel within said at least one heating element, said temperature sensor electrically connected to said control unit;

an element extending from said inside of said at least one heating element to a region outside said at least one heating element, said element having at least one of;

a receiving portion disposed at said inside of said at least one heating element and receiving said temperature sensor;

a fitting portion for fastening said element to said at least one heating element; and

a connection portion to be connected to an electrical line disposed outside said at least one heating element, said receiving portion being radially offset laterally with respect to one of said fitting portion and said connection portion; and

said temperature sensor fastened to said element.

2. The cooktop according to claim 1, wherein:

said element has an underside; and

said temperature sensor is fastened on said underside of said element.

3. The cooktop according to claim 1, wherein said element:

has said receiving portion; and

is pressed in a region of said receiving portion onto said underside of said cooktop panel.

4. The cooktop according to claim 1, wherein:

said element is a torsion spring having a torsion region; and

said torsion region is disposed substantially outside said at least one heating element.

5. The cooktop according to claim 4, wherein said torsion spring is substantially L-shaped.

6. The cooktop according to claim 1, wherein:

said at least one heating element has an outer circumferential wall; and

said element is fastened at a region of said outer circumferential wall.

7. The cooktop according to claim 1, wherein:

said at least one heating element has an outer circumferential wall; and

said element is fastened one of in and on a region of said outer circumferential wall.

8. The cooktop according to claim 1, wherein:

said at least one heating element has an outer circumferential wall; and

said element is screwed onto a region of said outer circumferential wall.

9. The cooktop according to claim 1, wherein:

said at least one heating element has an outer circumferential wall; and

at least one screw fastens said element at a region of said outer circumferential wall.

10. The cooktop according to claim 1, wherein:

said at least one heating element has a temperature limiter; and

said temperature sensor is disposed in a region of said temperature limiter.

11. The cooktop according to claim 1, wherein:

said at least one heating element has a heater; and

insulating material shields said temperature sensor and said element against thermal radiation emanating from said heater.

12. The cooktop according to claim 1, wherein:

said at least one heating element has a heater; and

an insulator shields said temperature sensor and said element against thermal radiation emanating from said heater.

13. The cooktop according to claim 1, wherein

said element has said fitting portion;

said element has an electrical connection portion in a region of said fitting portion;

said temperature sensor has at least one electrical line; and

said at least one electrical line is connected to said electrical connection portion.

14. The cooktop according to claim 13, wherein said element has a ground connection portion in a region of said fitting portion to be connected to a ground line.

15. The cooktop according to claim 1, wherein:

said element has said fitting portion; and

said connection portion is a ground connection portion disposed in a region of said fitting portion and to be connected to a ground line.

16. A cooktop, comprising:

a cooktop panel having an underside;

at least one heating element disposed beneath said cooktop panel for heating up a cooking vessel to be placed on said cooktop panel, said at least one heating element having an inside;

a control unit electrically connected to said at least one heating element for controlling a heating power of said at least one heating element;

a temperature sensor sensing a temperature of said underside of said cooktop panel within said at least one heating element, said temperature sensor electrically connected to said control unit;

an element extending from said inside of said at least one heating element to a region outside said at least one heating element, said element having;

a receiving portion disposed at said inside of said at least one heating element and receiving said temperature sensor;

a fitting portion for fastening said element to said at least one heating element; and

a connection portion to be connected to an electrical line disposed outside said at least one heating element, said receiving portion being radially offset laterally with respect to one of said fitting portion and said connection portion; and

said temperature sensor fastened to said element.

17. In a cooktop having a cooktop panel with an underside, at least one heating element disposed beneath the cooktop panel for heating up a cooking vessel to be placed on the cooktop panel, a control unit electrically connected to the at least one heating element for controlling a heating power of the at least one heating element, and a temperature sensor sensing a temperature of the underside of the cooktop panel within the at least one heating element, the temperature sensor electrically connected to the control unit, a temperature sensor holder comprising:

an element extending from the inside of the at least one heating element to a region outside the at least one heating element, said element having;

a receiving portion disposed at the inside of the at least one heating element for fastening the temperature sensor thereat; and

at least one of;

a fitting portion for fastening said element to the at least one heating element; and

a connection portion to be connected to an electrical line disposed outside the at least one heating element, said receiving portion being radially offset laterally with respect to one of said fitting portion and said connection portion.

18. The temperature sensor holding according to claim 17, wherein said element is a removable part of the at least one heating element.

19. In a cooktop having a cooktop panel with an underside, a control unit, and a temperature sensor electrically connected to the control unit and sensing a temperature of the cooktop panel, a heater comprising:

at least one heating element having an inside, said at least one heating element;

to be disposed beneath the cooktop panel for heating up a cooking vessel to be placed on the cooktop panel; and

to be electrically connected to the control unit for controlling a heating power of said at least one heating element; and

an element extending from said inside of said at least one heating element to a region outside said at least one heating element, said element having at least one of;

a receiving portion disposed at said inside of said at least one heating element for fastening the temperature sensor thereat;

a fitting portion for fastening said element to said at least one heating element; and

a connection portion to be connected to an electrical line disposed outside said at least one heating element, said receiving portion being radially offset laterally with respect to one of said fitting portion and said connection portion.