Cooking appliance

Patent metadata

Field	Value
Publication number	US-10865994-B2
Application number	US-201816017446-A
Country	US
Kind code	B2
Filing date	Jun 25, 2018
Priority date	Jun 30, 2017
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

A cooking appliance is provided that may include a main body having a cooking chamber formed therein and including a rear surface, a lower surface, and a side surface; a lower case provided below the lower surface to form an accommodation space therein; first and second heaters, the second heater installed in the accommodation space and configured to generate heat; a first discharge port through which an inside of the lower case communicates with an outside of the main body; a second discharge port through which an inside of the cooking chamber communicates with the outside of the main body; and a flow path connection member configured to form a flow path guide to guide heated air discharged through the first discharge port toward the second discharge port.

First claim

What is claimed is:

1. A cooking appliance, comprising:
a main body having a cooking chamber formed therein and including a rear surface configured to define a rear boundary of the cooking chamber, a lower surface configured to define a lower boundary of the cooking chamber, and at least one side surface configured to define a side boundary of the cooking chamber;
a lower case provided below the lower surface and having an accommodation space formed therein;
first and second heaters, the second heater being installed in the accommodation space and configured to generate heat;
a first discharge port configured to allow an inside of the lower case having the accommodating space formed therein to communicate with an outside of the main body;
a second discharge port configured to allow an inside of the cooking chamber to communicate with the outside of the main body; and
a flow path connection member configured to form a flow path guide to guide heat discharged through the first discharge port toward the second discharge port, wherein the flow path connection member includes:
duct sections provided outside the cooking chamber and configured to form an outer wall surrounding the flow path guide from the outside of the main body; and
at least one coupling flange configured to couple the duct sections to at least one of the lower case or the at least one side surface, wherein the flow path guide forms a path that connects the first discharge port and the second discharge port in a space surrounded by the duct sections, wherein the duct sections include:
a first duct section configured to form an outer wall surrounding a peripheral portion of the first discharge port; and
a second duct section configured to form an outer wall surrounding a peripheral portion of the second discharge port, and wherein the first duct section is pressed against the lower case, and the second duct section is pressed against the at least one side surface inside at least one side space of the main body.

2. The cooking appliance of claim 1 , wherein the main body further includes:
a lower space formed at a lower portion of the main body and separated from the cooking chamber under the cooking chamber; and
the at least one side space which is formed at at least one side of the main body and separated from the cooking chamber, and wherein the lower case is installed inside the lower space, and the flow path connection member forms the flow path guide that passes through the at least one side space.

3. The cooking appliance of claim 2 , wherein the first duct section is inserted into and installed in a space formed between the lower case and the lower space.

4. The cooking appliance of claim 1 , wherein:
the second discharge port passes through the at least one side surface;
the lower case includes at least one side wall configured to define a side boundary of an accommodation space, the at least one side wall including the first discharge port passing therethrough;
the side wall is located more laterally inward than the at least one side surface;
the flow path connection member is formed by connecting the first duct section and the second duct section to form an “L” shape.

5. The cooking appliance of claim 1 , further comprising a heat guide configured to change a flow direction of heated air that flows upward through the flow path guide to allow the heated air to pass through the second discharge port.

6. The cooking appliance of claim 5 , wherein the heat guide protrudes in a lateral direction on the at least one side surface and has an inclined surface, wherein a distance from the inclined surface to the at least one side surface decreases in an upward direction.

7. The cooking appliance of claim 5 , wherein:
the heat guide is formed by incising a part of the at least one side surface and bending the incised portion outward from the at least one side surface; and
the second discharge port is formed at a portion of the at least one side surface where the heat guide is separated.

8. The cooking appliance of claim 7 , wherein the heat guide is obliquely bent to form an acute angle with respect to the at least one side surface.

9. The cooking appliance of claim 1 , further comprising a first heating assembly provided inside the cooking chamber configured to generate a circulation flow of heated air within the cooking chamber, wherein the first heating assembly includes the first heater.

10. The cooking appliance of claim 9 , wherein the first heating assembly further includes:
a fan cover provided at a rear surface of the cooking chamber that forms a divided space inside the cooking chamber and including a suction port and a discharge port;
the first heater installed in the divided space that generates heat; and
a convection fan provided within the divided space and configured to generate an air circulation flow in which air introduced into the divided space through the suction port is heated by the first heater and discharged to the cooking chamber through the discharge port on the fan cover.

11. The cooking appliance of claim 10 , wherein the heated air discharged into the cooking chamber through the second discharge port on the at least one side surface of the main body combines with the circulation flow of the heated air generated by the first heating assembly and circulates inside the cooking chamber.

12. A cooking appliance, comprising:
a main body having a cooking chamber formed therein and including a rear surface configured to define a rear boundary of the cooking chamber, a lower surface configured to define a lower boundary of the cooking chamber, and at least one side surface configured to define a side boundary of the cooking chamber;
a lower case provided below the lower surface and having an accommodation space formed therein;
first and second heaters, the second heater being installed in the accommodation space and configured to generate heat;
a first discharge port configured to allow an inside of the lower case having the accommodating space formed therein to communicate with an outside of the main body;
a second discharge port configured to allow an inside of the cooking chamber to communicate with the outside of the main body; and
a flow path connection member configured to form a flow path guide to guide heat discharged through the first discharge port toward the second discharge port, wherein the flow path connection member includes:
duct sections provided outside the cooking chamber and configured to form an outer wall surrounding the flow path guide from the outside of the main body; and
at least one coupling flange configured to couple the duct sections to at least one of the lower case or the at least one side surface, wherein the flow path guide forms a path that connects the first discharge port and the second discharge port in a space surrounded by the duct sections, and wherein the at least one coupling flange protrudes from an edge of each of the duct sections abutting the at least one side surface of the main body or a side wall of the lower case and is parallel to the at least one side surface of the main body or the side wall of the lower case to be in surface contact with the at least one side surface of the main body or the side wall of the lower case.

13. The cooking appliance of claim 12 , further comprising a clip provided at an outer side of the at least one side surface of the main body and configured to press the at least one coupling flange toward the at least one side surface of the main body to be pressed against the at least one side surface of the main body.

14. The cooking appliance of clai

Assignees

• Lg Electronics Inc

Inventors

• Lee Dongjae
• Kim Youngsoo
• Park Hyun Woo

Classifications

• F24C7/06 Primary

  Arrangement or mounting of electric heating elements · CPC title

• F24C15/32

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

• F24C7/081

  on stoves · CPC title

• F24C15/04

  with transparent panels · CPC title

• F24C15/08

  Foundations or supports plates; Legs or pillars; Casings; Wheels (tops, e.g. hot plates F24C15/10) · CPC title