Induction hob and flexible support for an induction hob

Patent metadata

Field	Value
Publication number	US-10271386-B2
Application number	US-201615094616-A
Country	US
Kind code	B2
Filing date	Apr 8, 2016
Priority date	Apr 10, 2015
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

An induction hob has a hob plate, a plurality of induction heating coils which are arranged below the hob plate, and a plurality of sensor coils which are arranged below the hob plate and above the induction heating coils, and also temperature sensors. The sensor coils and the temperature sensors are arranged on a flexible support and electrical conductors make electrical contact with the sensor coils on the flexible support. The flexible support has a single common connection device for electrical contact to be made.

First claim

The invention claimed is:

1. An induction hob comprising:
a hob plate;
at least one induction heating coil being arranged below said hob plate; and
a plurality of sensor coils being arranged below said hob plate and above said induction heating coil wherein:
a flexible support is provided and said sensor coils are arranged on said flexible support,
electrical conductors which make electrical contact with said sensor coils on said flexible support,
said flexible support comprises a single common connection device for electrical contact to be made,
an additional flat rigid support is provided which runs above said at least one induction heating coil and beneath said hob plate, and
said flat rigid support is mounted with a spring action in relation to said induction heating coil and bears against a bottom face of said hob plate.

2. The induction hob according to claim 1 , wherein at least two said induction heating coils are arranged next to one another below said hob plate.

3. The induction hob according to claim 2 , wherein all of said induction heating coils are of the same size or of identical design.

4. The induction hob according to claim 1 , wherein said induction hob comprises at least one temperature sensor which is arranged on said flexible support close to one said sensor coil or on one said sensor coil.

5. The induction hob according to claim 1 , wherein at least two said sensor coils or at least one said temperature sensor are provided for each said induction heating coil and are associated with said induction heating coils.

6. The induction hob according to claim 5 , wherein one said sensor coil at least partially covers one said induction heating coil.

7. The induction hob according to claim 4 , wherein one said temperature sensor is provided for each said sensor coil, wherein said temperature sensor is arranged close to said sensor coil.

8. The induction hob according to claim 7 , wherein said sensor coil comprises a free region without turns, wherein in a centre of said free region said temperature sensor is arranged.

9. The induction hob according to claim 1 , wherein one said sensor coil is wound flat and is a maximum of two to three layers thick or comprises 20 to 100 turns.

10. The induction hob according to claim 4 , wherein said temperature sensor is a component with projecting connection wires as a through-hole technology (THT) component.

11. The induction hob according to claim 1 , wherein two said additional flat rigid supports are provided, said additional flat rigid supports overlapping, wherein said flexible support with said sensor coils is arranged between said supports.

12. The induction hob according to claim 1 , wherein said flexible support comprises a separate connection support with said common connection device at one end region, which separate connection support overlaps said textile support part and is fastened on said textile support part, and said textile support part and, respectively, said electrical conductors which are arranged on said textile support part make electrical contact with said separate connection support.

13. The induction hob according to claim 12 , wherein said connection support is not only a component which was originally separate from said textile support part but rather is also composed of a different flexible material.

14. The induction hob according to claim 13 , wherein said connection support is a foil support or conductor foil with conductor tracks formed thereon.

15. The induction hob according to claim 12 , wherein said connection support is elongate and comprises a plug-in connection device at one end region as a common connection device.

16. The induction hob according to claim 15 , wherein contact-connections to said electrical conductors on said textile support part are provided at another opposite end region, wherein said contact-connections are distributed over at least one third of a length of said connection support.

17. The induction hob according to claim 12 , wherein said connection support projects beyond said textile support part by way of said connection device, wherein said flexible support comprises only one single connection support with a total of one single connection device.

18. The induction hob according to claim 1 , wherein recesses are provided in said flexible support around the contact on said flexible support or on two opposite sides of said flexible support, said contact clips engaging through said recesses.

19. A flexible support comprising sensor coils on it for installation into an induction hob according to claim 1 , wherein said sensor coils are arranged on said flexible support and electrical conductors make electrical contact with said sensor coils on said flexible support, wherein said flexible support comprises a single common connection device for electrical contact to be made.

20. An induction hob comprising:
a hob plate;
at least one induction heating coil being arranged below said hob plate; and
a plurality of sensor coils being arranged below said hob plate and above said induction heating coil wherein:
a flexible support is provided and said sensor coils are arranged on said flexible support,
electrical conductors which make electrical contact with said sensor coils on said flexible support,
said flexible support comprises a single common connection device for electrical contact to be made,
said flexible support comprises a textile support part which is composed of a textile material, and
said electrical conductors are applied to said textile support part and are fixed, wherein said sensor coils are also applied and fixed to said textile support part.

21. An induction hob comprising:
a hob plate;
at least one induction heating coil being arranged below said hob plate; and
a plurality of sensor coils being arranged below said hob plate and above said induction heating coil wherein:
a flexible support is provided and said sensor coils are arranged on said flexible support,
electrical conductors which make electrical contact with said sensor coils on said flexible support,
said flexible support comprises a single common connection device for electrical contact to be made,
at least one of said sensor coils and said at least one temperature sensor on said flexible support are electrically connected by means of bent-over contact clips, and
said contact clips press a connection line of said sensor coils or of said temperature sensor onto a connection contact on said flexible support, and wherein, to this end, said contact clips are bent over once over a circumference and are bent together by way of end regions.

Assignees

• Ego Elektro Geraetebau Gmbh

Inventors

• Goetze Christian
• Lomp Stephane
• Rupp Michael
• Dalaker Timo
• Egenter Christian

Classifications

• H05B6/1236

  adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way · CPC title

• H05B6/062 Primary

  for cooking plates or the like · CPC title

• H05B2213/05

  Heating plates with pan detection means · CPC title

• H05B2213/07

  Heating plates with temperature control means · CPC title

• H05B6/065 Primary

  using coordinated control of multiple induction coils · CPC title