Cooking appliance

Patent metadata

Field	Value
Publication number	US-2021227648-A1
Application number	US-202117248234-A
Country	US
Kind code	A1
Filing date	Jan 15, 2021
Priority date	Jan 17, 2020
Publication date	Jul 22, 2021
Grant date	—

Abstract

A cooking appliance including a cooking chamber configured to cook food therein and openable in a first direction, a shelf provided to be inserted into the cooking chamber in the first direction and having a cooking surface on which food is placed, a magnetron configured to generate high frequency waves to be supplied to the shelf, and a heat generating member configured to generate heat by the high frequency waves generated by the magnetron. Where the cooking surface includes a first area on one side and a second area on another side, the heat generating member includes a first heat generating portion configured to supply heat to the first area and a second heat generating portion disposed to correspond to the second area, and the first heat generating portion supplies more heat to the first area than the second heat generating portion supplies to the second area.

First claim

What is claimed is:

1 . A cooking appliance comprising:
a cooking chamber configured to cook food therein and openable in a first direction; a shelf provided to be inserted into the cooking chamber in the first direction and having a cooking surface on which food is placed; and a magnetron configured to generate high frequency waves to be supplied to the shelf, wherein:
the shelf includes a heat generating member configured to generate heat by the high frequency waves generated by the magnetron,
the cooking surface includes a first area arranged at one side in a second direction perpendicular to the first direction and a second area arranged at another side in the second direction,
the heat generating member includes a first heat generating portion configured to supply heat to the first area and a second heat generating portion disposed to correspond to the second area, and
the first heat generating portion supplies more heat to the first area than the second heat generating portion supplies to the second area.

2 . The cooking appliance of claim 1 , wherein the cooking surface of the shelf includes a long side extending in the second direction and a short side extending in the first direction.

3 . The cooking appliance of claim 1 , wherein:
the heat generating member includes a ferrite material, and the first heat generating portion includes the ferrite material in a content different from a content of the ferrite material included in the second heat generating portion.

4 . The cooking appliance of claim 3 , wherein the first heat generating portion includes the ferrite material in a content larger than a content of the ferrite material included in the second heat generating portion.

5 . The cooking appliance of claim 1 , wherein:
the first heat generating portion is disposed to correspond to the first area in a third direction perpendicular to the first and second directions, and the second heat generating portion is disposed to correspond to the second area in the third direction.

6 . The cooking appliance of claim 5 , wherein the first heat generating portion is disposed at a side opposite to the second heat generating portion with respect to the cooking surface in the third direction.

7 . The cooking appliance of claim 6 , wherein the magnetron is disposed at a lower side of the cooking chamber in the third direction and faces the first heat generating portion and the second heat generating portion.

8 . The cooking appliance of claim 1 , further comprising a heater disposed at a side opposite to the magnetron in the cooking chamber, the heater configured to supply heat to the cooking surface.

9 . The cooking appliance of claim 8 , wherein the heater includes a first heater disposed to correspond to the first area in a third direction perpendicular to the first and second directions and a second heater disposed to correspond to the second area in the third direction.

10 . The cooking appliance of claim 9 , wherein the first heater and the second heater have a long axis extending in a direction corresponding to the first direction and are spaced apart from each other in the second direction.

11 . The cooking appliance of claim 9 , wherein the first heater and the second heater are each provided to supply a different temperature of heat to a corresponding one of the first and second areas.

12 . The cooking appliance of claim 11 , wherein the first heater is provided to supply the first area with an amount of heat that is greater than an amount of heat supplied to the second area by the second heater.

13 . The cooking appliance of claim 11 , wherein:
a temperature of heat supplied from the first heater is provided to be approximately equal to a temperature of heat emitted from the first heat generating portion, and a temperature of heat supplied from the second heater is provided to be approximately equal to a temperature of heat emitted from the second heat generating portion.

14 . The cooking appliance of claim 1 , wherein:
the cooking surface includes a third area arranged between the first area and the second area in the second direction, the heat generating member further includes a third heat generating portion provided to supply heat to the third area, and the third heat generating portion is disposed to correspond to the third area in a third direction perpendicular to the first and second directions.

15 . The cooking appliance of claim 14 , wherein the third heat generating portion is provided to supply the third area with heat having a temperature different from a temperature of heat supplied to the first area and the second area by the first and second heat generating portions, respectively.

16 . A cooking appliance comprising:
a cooking chamber configured to cook food therein and openable in a first direction; a heating source including a heater disposed at one side of the cooking appliance and a magnetron disposed at another side of the cooking appliance, the magnetron configured to generate high frequency waves; and a shelf provided to be inserted into the cooking chamber in the first direction and having a cooking surface on which food is placed, the cooking surface arranged to face the heater, wherein:
the shelf includes a heat generating member arranged to face the magnetron and configured to generate heat by the high frequency waves generated by the magnetron,
the heat generating member includes a first heat generating area at one side in a second direction perpendicular to the first direction and a second heat generating area arranged at another side in the second direction, and
the first heat generating area and the second heat generating area are each provided to generate heat at a temperature different.

17 . The cooking appliance of claim 16 , wherein:
the heat generating member includes a ferrite material, and the first heat generating area includes the ferrite material in a content different from a content of the ferrite material included in the second heat generating area.

18 . The cooking appliance of claim 17 , wherein the heater includes:
a first heater disposed to correspond to the first heat generating area in a third direction perpendicular to the first and second directions, and a second heater disposed to correspond to the second heat generating area in the third direction.

19 . The cooking appliance of claim 18 , wherein the first heater is provided to supply heat to a first area on the cooking surface corresponding to the first heat generating area in the third direction at a temperature different from a temperature of heat supplied to a second area on the cooking surface corresponding to the second heat generating area in the third direction.

20 . A cooking appliance comprising:
a cooking chamber configured to cook food therein and openable in a first direction; a shelf provided to be inserted into the cooking chamber in the first direction and having a long side extending in a second direction perpendicular to the first direction; a magnetron configured to generate high frequency waves to be supplied to the shelf; and a heat generating member configured to generate heat by the high frequency waves generated by the magnetron, wherein:
the heat generating member includes a ferrite material, and includes a first heat generating portion disposed at one side in the second direction and a second heat generating portion disposed at another side in the second direction, and
the first heat generating p

Assignees

• Samsung Electronics Co Ltd

Inventors

• Ye Sanggyun
• Kim Kyungjin
• Kim Eonjoong
• Kim Taehun
• Lee Jeawon
• Jeon Inki
• Jeong Jiho
• Hong Seunggee

Classifications

• H05B6/6482 Primary

  combined with radiant heating, e.g. infrared heating · CPC title

• F24C7/02

  using microwaves · CPC title

• H05B6/80 Primary

  Apparatus for specific applications (stoves or ranges F24C7/02) · CPC title

• H05B6/6408

  Supports or covers specially adapted for use in microwave heating apparatus · CPC title

• H05B6/6491

  combined with the use of susceptors (H05B6/80 and subgroups takes precedence) · CPC title