INDUCTION HEATING DEVICE AND INDUCTION HOB COMPRISING AN INDUCTION HEATING DEVICE OF THIS KIND

• US 20160366726A1
• Filed: 06/10/2016
• Published: 12/15/2016
• Est. Priority Date: 06/10/2015
• Status: Active Grant

• Current Assignee: EGO Elektro-Gerã¤Tebau GmbH (EGO Blanc und Fischer & Company GmbH)
• Original Assignee: EGO Elektro-Gerã¤Tebau GmbH (EGO Blanc und Fischer & Company GmbH)
• Inventors: Wein, Siegbert, Gaertner, Michael, Lomp, Stephane, Rupp, Michael, Freis, Konstantin
• Granted Patent: US 10,342,075 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F24C 15/104 Arrangements of connectors, grounding, supply wires
• CPC Class Codes: H01R 12/58 terminals for insertion into holes
• CPC Class Codes: H01R 12/7076 for connection between PCB and component, e.g. display
• CPC Class Codes: H01R 12/718 Contact members provided on the PCB without an insulating housing contacts for abutting H01R12/714
• CPC Class Codes: H01R 12/75 connecting to cables except for flat or ribbon cables
• CPC Class Codes: H01R 13/10 Sockets for co-operation with pins or blades
• CPC Class Codes: H01R 13/506 assembled by snap action of the parts
• CPC Class Codes: H05B 2206/022 Special supports for the induction coils
• CPC Class Codes: H05B 6/1209 induction cooking plates or the like and devices to be used in combination with them
• CPC Class Codes: H05B 6/1245 with special coil arrangements
• CPC Class Codes: H05B 6/44 having more than one coil or coil segment
• CPC Class Codes: Y02B 40/00 Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

An induction heating device including two induction heating coils and a plug-type contact device has a flat coil carrier for the induction heating coils, the plug-type contact device being arranged on the bottom face of the coil carrier with an insertion direction perpendicular to the surface of the coil carrier. The plug-type contact device has, on the bottom face of the coil carrier, a plug housing being movable with a defined movement travel in a plane parallel to the surface of the coil carrier. The plug housing has four receiving chambers being open at the bottom and having a direction of extent parallel to the insertion direction, in each of which a plug-type contact is arranged. A contact-making line runs from the plug-type contact to the induction heating coil.

Claims

1. An induction heating device comprising at least one induction heating coil and comprising a plug-type contact device, wherein said induction heating device comprises:

a coil carrier for said at least one induction heating coil;

said plug-type contact device is arranged on a bottom face of said coil carrier with an insertion direction perpendicular to a surface of said coil carrier;

said plug-type contact device comprises a plug housing which is held on said bottom face of said coil carrier in such a way that said plug housing has an ability to move with a defined movement travel in a plane parallel to said surface of said coil carrier;

said plug housing comprises at least two receiving chambers with a direction of extent parallel to an insertion direction of said plug-type contact device, wherein said receiving chambers are open at a bottom side;

one plug-type contact is arranged in each of said receiving chambers; and

one contact-making line runs from said plug-type contact to said induction heating coil.

2. The induction heating device according to claim 1, wherein two induction heating coils are arranged on said coil carrier.

3. The induction heating device according to claim 1, wherein said contact-making line is running freely and flexible.

4. The induction heating device according to claim 3, wherein said contact-making line of said plug-type contacts to said induction heating coil is a wire strand.

5. The induction heating device according to claim 4, wherein said contact-making line is composed of a same wire strand as that from which the induction heating coil is wound and is a projecting and continuous section of the induction heating coil.

6. The induction heating device according to claim 1, wherein said contact-making line is fastened to an upper end region of the plug-type contact.

7. The induction heating device according to claim 1, wherein said plug-type contacts are plug sleeves for mounting on plug pins.

8. The induction heating device according to claim 1, wherein said plug-type contacts comprise an outside diameter which is 1% to at most 20% smaller than an inside diameter of said receiving chamber at a respectively corresponding level for an ability of said plug-type contacts to move freely in a manner which is restricted to a defined extent in said receiving chambers with a defined movement travel.

9. The induction heating device according to claim 1, wherein said plug-type contact device is mounted on said coil carrier in a floating manner.

10. The induction heating device according to claim 9, wherein said plug-type contact device is mounted on said coil carrier in said floating manner by a latching mounting with latching hooks on several sides for a base plate of said plug housing.

11. The induction heating device according to claim 1, wherein said plug housing of said plug-type contact device comprises two parts with a base plate being held in a plug-type contact device receptacle on said bottom face of said coil carrier such that it is movable laterally with a defined movement travel of said plug-type contact device.

12. The induction heating device according to claim 11, wherein said base plate comprises a radial holder for said plug-type contacts in a form of a bore or in a form of a sleeve section.

13. The induction heating device according to claim 11, wherein said plug-type contact device comprises a cover for mounting on said base plate, wherein a connecting direction of said base plate and said cover is perpendicular to a surface of said coil carrier, wherein said cover for each plug-type contact comprises a passage opening for said plug-type contacts to project through and protrude through.

14. The induction heating device according to claim 11, wherein said receiving chambers are formed by receiving sleeves, which project away downward from said base plate in a manner of a sleeve section, and a passage opening in said cover.

15. The induction heating device according to claim 11, wherein said contact-making lines run laterally out of said plug-type contact device from said plug-type contacts between said base plate and said cover out of receiving sleeves which project from the base plate through a lateral slot in the receiving sleeves.

16. The induction heating device according to claim 15, wherein said flexible contact-making lines exit from said plug-type contact device in different directions.

17. The induction heating device according to claim 11, wherein said plug-type contacts comprise a thickened portion or a laterally projecting projection in a manner of a circumferential collar which is wider than a passage opening through said cover.

18. The induction heating device according to claim 17, wherein said thickened portion or said projection is between said cover and said receiving sleeve on said base plate.

19. The induction heating device according to claim 1, wherein said plug-type contact device is arranged on an outer region of said coil carrier.

20. The induction heating device according to claim 19, wherein said plug-type contact device is arranged within a surface of said coil carrier and adjacent to an outer edge thereof.

21. The induction heating device according to claim 1, wherein a plug-type connector is fastened to said plug-type contact device.

22. The induction heating device according to claim 21, wherein said plug-type connector is fastened to an outer face of said plug-type contact device.

23. An induction hob comprising at least one said induction heating device according to claim 1, wherein said induction hob comprises:

a generator housing beneath a hob plate; and

a generator component carrier being arranged in said generator housing, wherein said induction heating device is arranged above said generator housing with one of said plug-type contact devices pointing downwardly, wherein at least two upwardly projecting plug-type contacts are arranged on said generator component carrier in a fixed and unmovable manner for mounting said plug-type contact device of said induction heating device.

24. The induction hob according to claim 23, wherein said plug-type contacts on said generator component carrier are plug pins.

25. The induction hob according to claim 24, wherein said plug pins are slotted or are of variable diameter in a longitudinal direction, wherein said plug-type contacts of the plug-type contact device on the induction heating device are plug sleeves.