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Induction cooking hob with illumination equipment

專利號(hào)
US11497088B2
公開(kāi)日期
2022-11-08
申請(qǐng)人
ELECTROLUX APPLIANCES AKTIEBOLAG（SE Stockholm）
發(fā)明人
Stefan Bayerlein; Jochen Holzinger
IPC分類
H05B6/12; H05B6/02
技術(shù)領(lǐng)域
induction,emitting,coil,hob,diode,chassis,cooking,light,holder,spring
地域： Stockholm

摘要

An induction cooking hob (1) with illumination equipment includes a cover element (2) arranged at the top side of the induction cooking hob and including at least one heating zone, a chassis (5) arranged below the cover element (2) and at least one induction coil unit (3) having an induction coil (10). The induction coil unit (3) is arranged below the at least one heating zone. According to the invention, a light emitting diode (4) is mounted to the center of the at least one induction coil unit (3). Thermal conductive contact between the light emitting diode (4) and the chassis (5) is provided by a spring element (12) pressing at least a surface of the light emitting diode (4) onto the chassis (5).

說(shuō)明書

1 2 3 4 5 6 7 8 9 10 11 12 13
CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to, and any other benefit of prior application no. EP 18212849.6 filed on Dec. 17, 2018, the entire disclosure of which is incorporated by reference as though recited herein in its entirety.

FIELD OF THE INVENTION

The present invention relates to an induction cooking hob with illumination equipment.

BACKGROUND

Induction cooking hobs with illuminating equipment are known, amongst others, from DE 20 2012 003 287 U1, EP 2 458 285 A1 or EP 2 405 713 A1.

Known induction cooking hobs in particular comprise a cover element arranged at the top side of the induction cooking hob and including at least one heating zone, a chassis forming arranged below the cover element, at least one induction coil unit mounted to the chassis. The induction coil unit includes an induction coil for heating cookware placed on top of the cover element. At least one induction coil unit is arranged below the at least one heating zone. Induction cooking hobs include illuminating equipment such as one or more light emitting diodes, in particular for indicating heating zones.

In particular, it is known to mount a high-power light emitting diode (LED), for example via its printed circuit board, to a chassis made from aluminium by means of an adhesive tape to provide thermal conductivity such that heat generated during operation may be dissipated.

BRIEF SUMMARY

It is an object of the present invention to provide an induction cooking hob including illumination equipment with reliable heat dissipation.

權(quán)利要求

1
The invention claimed is:1. Induction cooking hob with illumination equipment, comprising: a cover arranged at a top side of the induction cooking hob and including at least one heating zone, a chassis arranged below the cover and at least one induction coil unit having an induction coil, said induction coil unit being arranged below the at least one heating zone, wherein a light emitting diode is mounted to a center of the at least one induction coil unit, wherein thermal conductive contact between the light emitting diode and the chassis is provided by a spring pressing at least a surface of the light emitting diode onto the chassis.2. Induction cooking hob according to claim 1, wherein the thermal conductive contact between the light emitting diode and the chassis includes a heat conducting tape or a heat conducting foil arranged between the light emitting diode and the chassis.3. Induction cooking hob according to claim 1, wherein the spring is made from silicone.4. Induction cooking hob according to claim 1, wherein the spring is arranged as a deformable gaiter, half sphere or cone.5. Induction cooking hob according to claim 1, wherein the light emitting diode is snap-fitted to a holder mounted in the center of the at least one induction coil unit.6. Induction cooking hob according to claim 5, wherein the holder is made from silicon.7. Induction cooking hob according claim 4, wherein the spring is integrated with a holder mounted in the center of the at least one induction coil unit to form one piece.8. Induction cooking hob according to claim 1, wherein the spring is a separate element.9. Induction cooking hob according to claim 7, wherein the spring is arranged as a coil spring, a helical spring, a leaf spring, a plate spring or a flat spring.10. Induction cooking hob according to claim 7, wherein the spring is mounted to a circuit board or an induction unit base plate.11. Induction cooking hob according to claim 1, wherein the light emitting diode is mounted to a bottom part of the at least one induction coil unit.12. Induction cooking hob according to claim 1, wherein the cover is a glass ceramic panel or glass ceramic plate.13. Induction cooking hob according to claim 1, wherein the light emitting diode is directly mounted to the at least one induction coil unit.
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