INDUCTION HEATING COOKING DEVICE

• US 20170196049A1
• Filed: 05/19/2015
• Published: 07/06/2017
• Est. Priority Date: 05/30/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KIM, Hee Sup, KANG, Han Seong, KIM, Hyung Jin, PARK, Jong Sung, KIM, Jung Kwon, HWANG, Yeon A, CHO, Pung Yeun
• Granted Patent: US 10,805,989 B2
• Time in Patent Office: Days
• CPC Class Codes: F24C 15/10 Tops, e.g. hot plates; Rings cover lids or splash guards F24C15/12; spillage trays or grooves F24C15/14
• CPC Class Codes: H05B 2206/022 Special supports for the induction coils
• CPC Class Codes: H05B 6/02 Induction heating
• CPC Class Codes: H05B 6/12 Cooking devices
• CPC Class Codes: H05B 6/1218 with arrangements using lights for heating zone state indication
• 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 6/1245 with special coil arrangements

Abstract

An induction heating cooking device includes a cooking table having an auxiliary slit; an induction coil for generating a magnetic field so as to inductively heat a cooking container placed on the cooking table; multiple light sources disposed at the outside of the induction coil; and a main slit through which light emitted from the light sources passes. The induction heating cooking device forms a virtual flame image on the cooking container, thereby enabling the heating state of the induction heating cooking device to be intuitively checked.

Claims

1. An induction heating cooking device comprising:

a cooking panel of which at least a part is formed of a transparent material and a light-shielding layer provided at a lower surface of the cooking panel to have an auxiliary slit corresponding to the part of the cooking panel formed of the transparent material;

an induction coil to generate a magnetic field to inductively heat a cooking container to be put on the cooking panel;

a light source module having a plurality of light sources to emit light and disposed outside the induction coil;

and a light source cover to cover the light source module and having a main slit to pass the light emitted from the light source module to form a flame image for the cooking container,

the auxiliary slit of the light-shielding layer positioned to pass through the light passed through the main slit of the light source cover.

2. The cooking device of claim 1, wherein the light source cover is integrally coupled to the light source module.

3. The cooking device of claim 1, wherein the light source cover is coupled to the light source module by a fastening member.

4. The cooking device of claim 1, further comprising a printed circuit board on which the plurality of light sources are mounted, wherein the printed circuit board is horizontally disposed about the cooking panel.

5. The cooking device of claim 4, wherein the light sources are mounted on an upper surface of the printed circuit board to emit upward the light.

6. The cooking device of claim 1, wherein the light source includes a light emitting diode (LED).

7. The cooking device of claim 1, further comprising a main board to support the induction coil, and a substrate supporter provided separately from the main board, and coupled to the main board to support the light source module.

8. The cooking device of claim 7, wherein the substrate supporter includes a flat portion formed to be flat and to horizontally support a printed circuit board of the light source module.

9. The cooking device of claim 8, wherein the substrate supporter includes a coupling portion to protrude from the flat portion to an outside to be coupled to the main board.

10. The cooking device of claim 1, wherein the light source cover includes a reinforcing bridge formed to cross the main slit to maintain a thickness of the main slit and preventing deformation of the thickness of the main slit.

11. The cooking device of claim 10, wherein the light source cover includes a first cover portion formed outside the main slit and a second cover portion formed inside the main slit.

12. The cooking device of claim 11, wherein the reinforcing bridge connects the first cover portion with the second cover portion.

13. The cooking device of claim 1, wherein the main slit is continuously formed in a circumferential direction.

14. The cooking device of claim 1, wherein the auxiliary slit is formed at a distance above the main slit to allow formation of the flame image for the cooking container.

15. The cooking device of claim 1, wherein a thickness of the auxiliary slit is greater than that of the main slit.

16. The cooking device of claim 1, wherein the light-shielding layer is printed on a lower surface of the cooking panel.

17. The cooking device of claim 1, wherein the light-shielding layer is formed in a sheet shape and attached to a lower surface of the cooking panel by an adhesive member.

18. The cooking device of claim 1, further comprising an optical member to change a travelling direction of the light emitted from the light source module and to concentrate the light.

19. The cooking device of claim 18, wherein the optical member is integrally coupled to the light source module and the light source cover.

20. The cooking device of claim 1, wherein the cooking panel includes a screen fence provided on an upper surface of the cooking panel to minimize the light emitted from the light source module through the auxiliary slit from being directly exposed to a visual field of a user.

21. An induction heating cooking device comprising:

a light source to emit light;

a light source cover to cover the light source and having a main slit to pass the light emitted from the light source;

a cooking panel of which at least a part is formed of a transparent material to form a pattern of an auxiliary slit through which the light passed through the main slit passes; and

an induction coil to generate a magnetic field,

the light source and the auxiliary slit disposed in an area about the induction coil to form a flame image corresponding to a level of the generated magnetic field.

22. The cooking device of claim 21, wherein the cooking counter includes a cooking panel of which at least a part is formed of a transparent material and a light-shielding layer having the auxiliary slit and provided at a lower surface of the cooking panel.

23. The cooking device of claim 22, wherein the cooking counter further includes a screen fence provided on an upper surface of the cooking panel to minimize the light source from being directly exposed to a user'"'"'s visual field of the user through the auxiliary slit.

24. The cooking device of claim 23, wherein the screen fence is provided to extend outward from a vertical upper side of the auxiliary slit.

25. The cooking device of claim 21, wherein the light source cover includes a first cover portion formed outward from the main slit and a second cover portion formed inward from the main slit.

26. The cooking device of claim 25, wherein the second cover portion extends inward further than the auxiliary slit to prevent a component under the cooking counter from being exposed to an outside through the auxiliary slit.

27. The cooking device of claim 26, further comprising an induction coil supporter to support the induction coil, wherein a vertical gap is formed between the second cover portion and the induction coil supporter.

28. The cooking device of claim 27, wherein at least a part of the induction coil is accommodated in the gap.