Cooking device

• US 10,451,288 B2
• Filed: 04/29/2016
• Issued: 10/22/2019
• Est. Priority Date: 04/30/2015
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Kookhaeng, Seok, Junho, Jeong, Jeonghoon
• Primary Examiner(s): Savani, Avinash A
• Assistant Examiner(s): Heyamoto, Aaron H
• Application Number:
  US15/143,159
• Publication Number:
  US 20160320066A1
• Time in Patent Office: 1,271 Days
• Field of Search: 126 39 E, 126 21 A
• CPC Class Codes: F23Q 7/10 for gaseous fuel, e.g. in welding appliances
• CPC Class Codes: F24C 15/322 with forced circulation
• CPC Class Codes: F24C 3/087 in baking ovens
• CPC Class Codes: F24C 3/103 of electric ignition devices

Abstract

A cooking device includes a frame to form a cooking chamber; a burner cover disposed inside the frame and to form a combustion chamber and have an air inlet hole in which air is introduced; a burner in the combustion chamber; an ignition device in the combustion chamber and to have an ignition unit for igniting a mixed gas discharged from the burner; and a flow guide to change a flow direction of the air which is introduced through the air inlet hole at a side of the ignition unit, wherein the flow guide is formed as a portion of the burner cover protrudes to the combustion chamber by forming.

Claims

1. A cooking device comprising:

a frame that forms a cooking chamber;

a burner cover that forms a combustion chamber, the burner cover having an air inlet hole through which air is introduced into the combustion chamber;

a burner provided in the combustion chamber;

an ignition device provided in the combustion chamber, the ignition device having an ignition unit to ignite a mixed gas that is discharged from the burner; and

a flow guide that changes a flow direction of the air that is introduced through the air inlet hole at a side of the ignition unit,

wherein the flow guide is provided at a portion of the burner cover that protrudes toward the combustion chamber,

wherein the burner cover comprises a first cover covering a front surface of the burner and a second cover covering a rear surface of the burner, the first cover and the second cover form the combustion chamber, and

wherein the flow guide protrudes from at least one of the first cover and the second cover to the combustion chamber.

2. The cooking device of claim 1, wherein the burner comprises a plurality of gas outlet holes that discharge a mixed gas, and the ignition unit faces at least one of the gas outlet holes.

3. The cooking device of claim 1, wherein the flow guide changes a direction of air flowing between the ignition unit and the burner cover.

4. The cooking device of claim 1, wherein the first cover includes a first opening that introduces air from the cooking chamber to the combustion chamber, and the second cover includes a second opening through which air heated in the combustion chamber is discharged, and

wherein the second cover includes a plate at which the second opening is formed and the flow guide protrudes outward from the plate.

5. The cooking device of claim 4, wherein the flow guide is formed as a portion of the plate that protrudes toward the combustion chamber.

6. The cooking device of claim 4, wherein the ignition unit is located between the second opening and the burner.

7. The cooking device of claim 4, wherein a projection length from the plate to the flow guide is less than a distance from the plate to the ignition unit.

8. The cooking device of claim 4, wherein the flow guide and the ignition unit are arranged so that the ignition unit and the flow guide do not overlap with each other at a direction in which the first opening and the second opening are connected.

9. The cooking device of claim 4, wherein the air inlet hole is provided in the second cover, and the burner passes through the air inlet hole.

10. The cooking device of claim 1, wherein the burner cover comprises a first cover and a second cover that form the combustion chamber, whereby the first cover includes a first opening that introduces air from the cooking chamber to the combustion chamber, and the second cover includes a second opening through which air heated in the combustion chamber is discharged,

wherein the first cover includes a first plate in which the first opening is formed, and the second cover includes a second plate in which the second opening is formed, and

wherein the flow guide includes a first flow guide and a second flow guide, whereby the first flow guide protrudes from the first plate to the combustion chamber, and the second flow guide protrudes from the second plate to the combustion chamber.

11. The cooking device of claim 10, wherein the first flow guide and the second flow guide face each other.

12. The cooking device of claim 10, wherein a distance between the first flow guide and the second flow guide is greater than a width of the ignition unit.

13. The cooking device of claim 10, wherein a projection length from the first plate to the first flow guide is less than a distance from the first plate to the ignition unit, and a projection length from the second plate to the second flow guide is less than a distance from the second plate to the ignition unit.

14. The cooking device of claim 10, wherein the air inlet hole is provided in the second cover and the burner passes through the air inlet hole.

15. The cooking device of claim 1, further comprising:

a fan for flowing air of the cooking chamber; and

a stabilizer having a barrier that reduces an influence of air of the cooking chamber on a flame of the burner when the air passes through an opening of the burner cover.

16. The cooking device of claim 15, wherein the barrier is disposed at a peripheral portion of the stabilizer.

17. The cooking device of claim 16, wherein the stabilizer includes an opening for air to pass through, and the stabilizer is attached to the burner cover such that a line connecting a center of the opening and the ignition unit does not overlap with the barrier.

18. A cooking device comprising:

a frame that forms a cooking chamber;

a burner provided in the cooking chamber;

a burner cover having an air inlet hole in which air is introduced;

an ignition unit that ignites a mixed gas discharged from the burner; and

a flow guide provided in the burner cover, the flow guide configured to change a flow resistance of air flowing between the ignition unit and the burner,

wherein at least a part of the ignition unit is located in the burner cover, and

wherein the flow guide protrudes from the burner cover to the ignition unit.

19. The cooking device of claim 18, wherein the burner cover comprises a first cover and a second cover that are connected to each other, whereby the first cover includes a first opening for introducing air from the cooking chamber to an inner space of the burner cover, and the second cover includes a second opening discharging air, and

wherein the flow guide comprises a first flow guide and a second flow guide, whereby the first flow guide protrudes from the first cover, and the second flow guide is provided at the second cover and faces the first flow guide and is spaced apart from the first flow guide.

20. The cooking device of claim 19, wherein the first flow guide is integrated with the first cover, and the second flow guide is integrated with the second cover.