Cooking appliance

Patent metadata

Field	Value
Publication number	US-9534791-B2
Application number	US-201414338817-A
Country	US
Kind code	B2
Filing date	Jul 23, 2014
Priority date	Apr 3, 2014
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

A cooking appliance includes a cavity to provide a cooking chamber, a door to open and close the cooking chamber, a partition plate to partition the cavity into a first chamber and a second chamber, the partition plate facing the door in the closed state, and a burner assembly disposed in the second chamber to supply heated air into the first chamber.

First claim

What is claimed is:

1. A cooking appliance comprising:
a cavity to provide a cooking chamber;
a door to open and close the cooking chamber;
a partition plate provided in the cavity to partition the cavity into a first chamber and a second chamber, the partition plate facing the door in the closed state, wherein the door closes the first chamber; and
a burner assembly disposed in the second chamber to supply heated air into the first chamber,
wherein the burner assembly comprises a burner cover to partition the second chamber into a combustion chamber and an exhaust chamber, and
a burner disposed in the combustion chamber,
wherein the burner cover comprises:
a first cover having a first opening through which air within the first chamber can pass through;
a second cover coupled to the first cover and having a second opening through which air flowing into the combustion chamber can pass through.

2. The cooking appliance according to claim 1 , wherein the burner assembly further comprises:
a fan disposed in the exhaust chamber.

3. The cooking appliance according to claim 2 , wherein the burner comprises an installation part to install the burner so that the burner is spaced apart from the burner cover.

4. The cooking appliance according to claim 1 , wherein the second cover has a burner through-part through which a portion of the burner passes to protrude toward a rear wall of the cavity, and
the burner through-part contacts with the rear wall of the cavity.

5. The cooking appliance according to claim 2 , wherein the burner cover comprises an inflow hole to introduce air outside the cavity into the combustion chamber.

6. The cooking appliance according to claim 5 , wherein the burner cover comprises an insertion part on which the inflow hole is defined, and
at least a portion of the insertion part passes through a wall of the cavity and is disposed outside the cavity.

7. The cooking appliance according to claim 5 , wherein the burner cover comprises an air guide to guide the air introduced into the combustion chamber through the inflow hole toward a plurality of gas outlet holes defined on the burner.

8. The cooking appliance according to claim 7 , wherein the air guide protrudes from a rear side of the burner cover toward the burner within the burner cover.

9. The cooking appliance according to claim 5 , wherein the burner cover comprises a first portion having an opening through which air within the first chamber can pass through and a second portion having the inflow hole,
at least a portion of the burner disposed in a region within the burner cover between the opening and the inflow hole, and
the first portion has a passage-sectional area greater than a passage-sectional area of the second portion.

10. The cooking appliance according to claim 2 , wherein
the second cover is coupled to a rear wall of the cavity.

11. The cooking appliance according to claim 1 , wherein a plurality of gas outlet holes are defined on an inner periphery of the burner, and
the inner periphery of the burner has a curvature radius greater than a radius of the first opening.

12. The cooking appliance according to claim 1 , wherein the second cover comprises a second plate having the second opening, and
a protrusion disposed on the second plate at a position corresponding to the burner to prevent the burner from directly contacting the second plate.

13. The cooking appliance according to claim 1 , wherein at least one strength reinforcing part to reinforce strength of the first cover is disposed on the first cover.

14. A cooking appliance comprising:
a cavity to provide a cooking chamber;
a door to open and close the cooking chamber;
a partition plate provided in the cavity to partition the cavity into a first chamber and a second chamber, the partition plate facing the door in the closed state, wherein the door closes the first chamber; and
a burner assembly disposed in the second chamber to supply heated air into the first chamber,
wherein the burner assembly comprises a burner cover to partition the second chamber into a combustion chamber and an exhaust chamber,
a burner disposed in the combustion chamber, and
a fan disposed in the exhaust chamber,
wherein the fan is disposed at a rear side of the burner cover outside of the combustion chamber.

15. The cooking appliance according to claim 1 , wherein the partition plate comprises:
an air suction hole at the partition plate to introduce air within the first chamber into the combustion chamber; and
an air discharge hole at the partition plate to discharge air within the exhaust chamber into the first chamber.

16. The cooking appliance according to claim 1 , wherein the burner assembly comprises a nozzle holder having a gas spraying hole to spray gas into the burner,
the burner comprises a supply part to receive gas and air, wherein
the supply part protrudes toward a rear wall of the cavity, and
the gas spraying hole of the nozzle holder aligns with the supply part.

17. The cooking appliance according to claim 16 , wherein the supply part comprises at least one first guide, and
the nozzle holder comprises at least one second guide to guide the at least one first guide of the supply part.

18. The cooking appliance according to claim 17 , wherein the nozzle holder has an accommodation groove in which the at least one first guide is accommodated, and
the at least one first guide contacts the at least one second guide in the state where the at least one first guide is accommodated into the accommodation groove.

19. The cooking appliance according to claim 17 , wherein the supply part comprises a plurality of first guides that are spaced apart from each other,
the nozzle holder comprises a plurality of second guides that are spaced apart from each other, and
when the plurality of first guides pass through the rear wall of the cavity, the plurality of first guides are disposed between the plurality of second guides.

20. The cooking appliance according to claim 19 , wherein a distance between outer ends of the plurality of second guides is greater than a distance between outer ends of the plurality of first guides.

21. The cooking appliance according to claim 20 , wherein a distance between the plurality of second guides at a portion adjacent to the gas spraying hole is less than a distance between outer ends of the plurality of second guides.

22. The cooking appliance according to claim 17 , wherein at least one second guide is provided with a coupling part to be coupled to the rear wall of the cavity, and
a coupling hole is defined on the coupling part.

23. The cooking appliance according to claim 22 , wherein a guide protrusion to guide a coupling position is disposed on the coupling part.

24. A cooking appliance comprising:
a cavity to provide a cooking chamber;
a door to open and close the cooking chamber;
a partition plate provided in the cavity to partition the cavity into a first chamber and a second chamber, the partition plate facing the door in the closed state, wherein the door closes the first chamber; and
a burner assembly disposed in the second chamber to supply heated air into the first chamber,
wherein the burner assembly comprises a burner cover to partition the second chamber into a combustion chamber and an exhaust chamber,
a burner disposed in the combustion chamber, and
a fan disposed in the exhaust chamber,
wherein the burne

Assignees

• Lg Electronics Inc
• Lg Electronics Inc

Inventors

• Wie Jeahyuk
• Yang Ingyu
• Kim Youngsoo
• Kim Yangho

Classifications

• F24C15/322

  with forced circulation · CPC title

• F24C5/12

  Arrangement or mounting of burners · CPC title

• F24C3/087 Primary

  in baking ovens · CPC title

• F24C3/025 Primary

  of the closed type · CPC title