Wireless Kitchen Appliance Operated on an Induction Heating Cooker

• US 20150264751A1
• Filed: 11/26/2012
• Published: 09/17/2015
• Est. Priority Date: 12/29/2011
• Status: Active Grant

• Current Assignee: Arcelik Anonim Sirketi
• Original Assignee: Arcelik aninim sirketi
• Inventors: Yaman, Onur, Yorukoglu, Ahmet, Hazir, Sefa
• Granted Patent: US 10,129,935 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A47J 27/004 with integral electrical heating means drinking cups with integral heating means A47J36/2466
• CPC Class Codes: H05B 2206/02 Induction heating
• CPC Class Codes: H05B 2213/06 Cook-top or cookware capable of communicating with each other
• CPC Class Codes: H05B 6/06 Control, e.g. of temperature, of power
• CPC Class Codes: H05B 6/12 Cooking devices
• CPC Class Codes: H05B 6/1236 adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way

Abstract

The present invention relates to a kitchen appliance (1) that is operated wirelessly on an induction heating cooker (K), comprising a programmable microcontroller (2), one or more than one electronic circuit (3) that provides the microcontroller (2) to control the communication means, user interface and sensors, providing communication with the induction heating cooker (K) whereon the kitchen appliance (1) is operated, a power control circuitry (4) that supplies the microcontroller (2) and the electronic circuits (3) with low level DC voltage, a receiver coil (5) that partially collects and provides transfer of the power generated by the induction coil (B) in the induction heating cooker (K) to the power control circuitry (4), a rectifier (6) that converts the AC voltage delivered from the receiver coil (5) to DC voltage and a buffer capacitor (7) which filters the DC voltage at the rectifier (6) outlet.

Claims

1. A kitchen appliance (1), suitable for being wirelessly operated on an induction heating cooker (K) with the power generated by the induction coil (B), comprising a microcontroller (2), one or more than one electronic circuit (3) that provides the communication and/or control means (E) to be controlled by the microcontroller (2), a power control circuitry (4) that supplies the microcontroller (2) and the electronic circuits (3) with low level DC voltage, a receiver coil (5) that partially collects and provides transfer of the power generated by the induction coil (B) to the power control circuitry (4), a rectifier (6) that is disposed in the power control circuitry (4) and that converts the AC voltage delivered from the receiver coil (5) to DC voltage and a buffer capacitor (7) which filters the DC voltage at the rectifier (6) outlet, characterized by a transformer (8) that is disposed between the receiver coil (5) and the rectifier (6) and that provides the power control circuitry (4) to supply the microcontroller (2) and the electronic circuits (3) with constant voltage by compensating the voltage at the outlet of the receiver coil (5).

2. A kitchen appliance (1) as in claim 1, characterized by the transformer (8) comprising a primary winding (P) and more than one secondary winding (S1, S2) and a switching means (10) controlled by the microcontroller (2), which activates or deactivates one or more than one secondary winding (S1, S2) by switching the secondary windings (S1, S2).

3. A kitchen appliance (1) as in claim 2, characterized by a peak voltage tracker (9) that is disposed between the rectifier (6) and the buffer capacitor (7), that tracks the peak values of the voltage at the outlet of the rectifier (6) and feeds back to the microcontroller (2).

4. A kitchen appliance (1) as in claim 3, characterized by the microcontroller (2), that activates or deactivates one or more than one secondary winding (S1, S2) by actuating the switching means (10) depending on the feedback received from the peak voltage tracker (9).

5. A kitchen appliance (1) as in claim 4, characterized by the transformer (8) comprising a common end double secondary winding (S1, S2).

6. A kitchen appliance (1) as in claim 5, characterized by the microcontroller (2) that deactivates the members like LED, display, backlight which draw high power in situations whereat the induction heating cooker (K) is operated at low power settings.

7. A kitchen appliance (1) as in claim 6, characterized by being a ferromagnetic cooking container that is heated by the induction energy generated by the induction coil (B).

8. A kitchen appliance (1) as in claim 6, characterized by being an active heating appliance having a resistant heater.

9. A kitchen appliance (1) as in claim 6, characterized by being an electromechanical appliance that is operated by an electric motor.

10. A kitchen appliance (1) as in claim 6, characterized by being a coffee machine wherein the cooking control is provided by means of an infrared sensor.

11. A kitchen appliance (1) as in claim 10, characterized by one or more than one high power receiver coil (11) that transfers power from the induction coil (B) for operating members (M) like heater or motor.

12. A kitchen appliance (1) as in claim 1, characterized by a peak voltage tracker (9) that is disposed between the rectifier (6) and the buffer capacitor (7), that tracks the peak values of the voltage at the outlet of the rectifier (6) and feeds back to the microcontroller (2).

13. A kitchen appliance (1) as in claim 12, characterized by the microcontroller (2), that activates or deactivates one or more than one secondary winding (S1, S2) by actuating the switching means (10) depending on the feedback received from the peak voltage tracker (9).

14. A kitchen appliance (1) as in claim 1, characterized by the transformer (8) comprising a common end double secondary winding (S1, S2).

15. A kitchen appliance (1) as in claim 1, characterized by the microcontroller (2) that deactivates the members like LED, display, backlight which draw high power in situations whereat the induction heating cooker (K) is operated at low power settings.

16. A kitchen appliance (1) as in claim 1, characterized by being a ferromagnetic cooking container that is heated by the induction energy generated by the induction coil (B).

17. A kitchen appliance (1) as in claim 1, characterized by being an active heating appliance having a resistant heater.

18. A kitchen appliance (1) as in claim 1, characterized by being an electromechanical appliance that is operated by an electric motor.

19. A kitchen appliance (1) as in claim 1, characterized by being a coffee machine wherein the cooking control is provided by means of an infrared sensor.

20. A kitchen appliance (1) as in claim 1, characterized by one or more than one high power receiver coil (11) that transfers power from the induction coil (B) for operating members (M) like heater or motor.