WIRELESS COOKING APPLIANCE OPERATED ON AN INDUCTION HEATING COOKTOP

• US 20150237682A1
• Filed: 10/03/2013
• Published: 08/20/2015
• Est. Priority Date: 10/11/2012
• Status: Abandoned Application

• Current Assignee: Arcelik Anonim Sirketi
• Original Assignee: Arcelik Anonim Sirketi
• Inventors: Yaman, Onur, Hazir, Sefa Cem
• Application Number:
  US14/435,442
• Publication Number:
  US 20150237682A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A47J 27/002 Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
• CPC Class Codes: H05B 2213/06 Cook-top or cookware capable of communicating with each other
• 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
• CPC Class Codes: H05B 6/1281 with flat coils

Abstract

The present invention relates to a cooking appliance (1) suitable to be operated wirelessly on an induction heating cooktop (17) that has one or more than one induction coil (18), comprising a base (2) of ferromagnetic properties, enabling the appliance (1) to be heated from the bottom with the magnetic energy transferred by the induction coil (18), a control unit (3) having a microcontroller providing the controlling of the operating parameters like temperature, motor speed and communication with the cooktop (17) and the monitoring and communication means like the user interface, display, RFID and a receiver coil (4) that partially receives the power generated by the induction coil (18), providing the required energy for operating the control unit (3) and the additional components like the sensor, mixer motor placed thereon depending on the intended use of the appliance (1). The receiver coil (4) has one or more windings in a spiral form with gaps (A) there-between, the windings being embedded in one or more channel (6) of a coil casing (7).

Claims

1. An appliance (1) suitable to be operated wirelessly on an induction heating cooktop (17) that has one or more than one induction coil (18), comprising a base (2) of ferromagnetic properties, enabling the appliance (1) to be heated from the bottom with the magnetic energy transferred by the induction coil (18), a control unit (3) having a microcontroller providing the controlling of the operating parameters like temperature, motor speed and communication with the cooktop (17) and the monitoring and communication means like the user interface, display, RFID, and a receiver coil (4) that partially receives the power generated by the induction coil (18), providing the required energy for operating the control unit (3),

characterized in that

the receiver coil (4) having one or more than one winding (5) in planar spiral form, made of continuous copper conductive tracks, and

a coil casing (7) produced from non-conductive and heat-resistant material, disposed between the base (2) and the cooktop (17) and having one or more than one channel (6) in planar spiral form, wherein the windings (5) are embedded.

2. An appliance (1) as in claim 1, characterized in that the coil casing (7) having the channel (6) formed on the surface thereof facing the base (2) so that gaps (A) remain between the windings (5).

3. An appliance (1) as in claim 1, characterized in that the coil casing (7) having the channel (6) deep enough for the windings (5) to be completely embedded therein so that the upper surfaces of the windings (5) do not contact the base (2).

4. An appliance (1) as in claim 1, characterized in thata cover (8) placed onto the coil casing (7), produced from non-conductive and heat-resistant material and preventing the windings (5) of the receiver coil (4) embedded into the channel (6) from contacting the base (2) by covering thereover.

5. An appliance (1) as in claim 1, characterized in thatthe receiver coil (4) comprising an outer winding terminal (9) providing the electrical connection thereof with the control unit (3) and extending outwards from the outermost winding (5), and furthermore an inner winding terminal (10) extending from the innermost winding (5).

6. An appliance (1) as in claim 1, characterized in thatthe coil casing (7) comprising a lower slot (11) extending from the outer end of the channel (6) to the edge, wherein the outer winding terminal (9) is placed.

7. An appliance (1) as in claim 1, characterized in that the cover (8) comprising an upper slot (12) extending from the center thereof to the edge, wherein the inner winding terminal (10) is placed.

8. An appliance (1) as in claim 1, characterized in that the coil casing (7) comprising a contact extension (13) that provides the electrical connection of the outer and inner winding terminals (9, 10) to the control unit (3).

9. An appliance (1) as in claim 1, characterized in that an intermediate insulating layer (14) that is disposed between the coil casing (7) and the cover (8).

10. An appliance (1) as in claim 1, characterized in that the coil casing (7) that is integrated with the base (2).

11. An appliance (1) as in claim 1, characterized in that the coil casing (7) comprising a support ring (15) that is situated at the surface thereof facing the base (2) and that surrounds all around the cover (8).

12. An appliance (1) as in claim 11, characterized in that the coil casing (7) that is fixed to the underside of the base (2) by being rotated by means of the screw threads on the inner surface of the support ring (15) and screw threads at the lower part of the body thereof, at its surface surrounding the base (2).

13. An appliance (1) as in claim 11, characterized in that a skirt (16) extending below the level of the base (2), surrounding the base (2) and having screw threads on its inner wall, and in thatthe coil casing (7) that is fixed to the underside of the base (2) by being screwed to the inner wall of the skirt (16) by means of the screw threads on the outer surface of the support ring (15).

14. An appliance (1) as in claim 10, characterized in that the coil casing (7) that is fixed to the underside of the base (2) by being adhered.

15. An appliance (1) as in claim 1, which is a heat controlled cooker that requires to be heated from the base (2).