Cooking appliance

Patent metadata

Field	Value
Publication number	US-9939161-B2
Application number	US-201414519729-A
Country	US
Kind code	B2
Filing date	Oct 21, 2014
Priority date	Oct 21, 2013
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

Provided is a cooking appliance. The cooking appliance includes a housing to define a cooking chamber, a burner disposed outside the housing, a communication hole defined in the housing to allow air heated by the burner to pass therethrough, and a heated air guider disposed inside the housing and coupled to the housing. The heated air guider comprises a discharge hole through which the heated air is discharged and prevents the communication hole from being exposed to the cooking chamber.

First claim

What is claimed is:

1. A cooking appliance, comprising:
a housing comprising a cooking chamber, the housing having a base defining a bottom surface thereof;
a burner disposed under the base of the housing;
a communication hole at the housing allowing air, heated by the burner, to pass therethrough; and
a heated air guider coupled to the interior of the housing,
wherein the heated air guider comprises at least one discharge hole through which heated air is discharged into the cooking chamber and which prevents the communication hole from being exposed to the cooking chamber, and
wherein the heated air guider further comprises:
a first body having a first discharge hole; and
a second body extending downward from the first body, the second body having a second discharge hole,
wherein the second body is in contact with the base and covers the communication hole,
wherein the first body includes a rounded first guide and a second guide connected to the first guide,
wherein an end of the first guide and an end of the second guide are spaced apart from each other to define the first discharge hole, and
wherein the one end of the second guide is disposed to surround the one end of the first guide.

2. The cooking appliance of claim 1 , wherein the communication hole is located on a rear wall of the housing, and
the heated air guider is coupled to the rear wall of the housing.

3. The cooking appliance of claim 1 , wherein a fan, located within the heated air guider, discharges the heated air into the cooking chamber.

4. The cooking appliance of claim 3 , wherein the fan comprises a cross flow fan.

5. The cooking appliance of claim 4 , wherein the cross flow fan is horizontally disposed within the heated air guider.

6. The cooking appliance of claim 3 , wherein the fan is located where the first body and the second body are connected to each other or on the second body.

7. The cooking appliance of claim 3 , wherein the fan is located at an upstream side of the first discharge hole or a downstream side of the second discharge hole.

8. The cooking appliance of claim 3 , wherein the first body has a closed loop shape with a central hole, and
the first discharge hole is defined around the first body.

9. The cooking appliance of claim 8 , wherein the first discharge hole is defined in an area that rotates an angle of about 270° with respect to a center of the first body.

10. The cooking appliance of claim 3 , further comprising:
an input part to indicate a cooking mode;
a fan motor to rotate the fan; and
a control part to control the fan motor according to the cooking mode indicated by the input part,
wherein the cooking mode comprises a first mode and a second mode, and
wherein the control part operates the fan motor to discharge heated air into the cooking chamber by the fan when the first mode is selected and stops the operation of the fan motor to discharge heated air into the cooking chamber by natural convection when the second mode is selected.

11. The cooking appliance of claim 1 , wherein the burner comprises:
a supply part extending in a direction away from the heated air guider; and
a combustion part connected to the supply part, the combustion part having a plurality of flame holes.

12. The cooking appliance of claim 11 , wherein the heated air guider is coupled to a rear wall of the housing,
the supply part extends in a front and rear direction of the housing, and
the combustion part extends in a left and right direction of the housing.

Assignees

• Lg Electronics Inc

Inventors

• Jeong Yongki
• Park Janghee
• Lim Jaebeom

Classifications

• F24C3/087

  in baking ovens · CPC title

• F24C15/322 Primary

  with forced circulation · CPC title

• F24C15/32

  Arrangements of ducts for hot gases, e.g. in or around baking ovens · CPC title

• F24C3/12 Primary

  Arrangement or mounting of control or safety devices · CPC title