Cooking apparatus

Patent metadata

Field	Value
Publication number	US-11212884-B2
Application number	US-201515505817-A
Country	US
Kind code	B2
Filing date	Apr 29, 2015
Priority date	Sep 2, 2014
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

In accordance with one embodiment of the present disclosure, a cooking apparatus includes a casing, a cooking chamber formed inside the casing, a duct member formed outside the cooking chamber to extend from a first plate of the cooking chamber to a second plate forming an upper surface of the cooking chamber, a heater installed inside the duct member, and a fan installed inside the duct member and configured to blow air in the duct member, wherein the cooking chamber is formed to cook food using high-temperature air discharged into the cooking chamber through a first outlet part formed at the second plate.

First claim

The invention claimed is:

1. A cooking apparatus comprising:
a first plate having an inside surface and an outside surface, with the inside surface of the first plate forming a side surface of a cooking chamber;
a second plate having an inside surface and an outside surface, with the inside surface of the second plate forming a top surface of the cooking chamber, and the second plate having a first protruding portion with first and second sides protruding to an outside of the first plate, and a second protruding portion that is between the first and second sides of the first protruding portion, bent downward, and coupled to the inside surface of the first plate to thereby form a passage through the second plate between the first and second sides of the first protruding portion;
first and second ducts which are separate components, the first duct being coupled to the outside surface of the first plate, and extending along the outside surface of the first plate, with an end of the first duct extending past an end of the first plate and through the passage, and the second duct being coupled to the outside surface of the second plate, and extending along the outside surface of the second plate, with an end of the second duct extending past an end of the second plate and coupled to the end of the first duct at an outside corner of the cooking chamber, so that the first duct and the second duct are thereby configured to guide air, used in the cooking chamber to cook food, from an inlet formed in the first plate to a first outlet formed in the second plate;
a heater installed inside one of the first duct and the second duct; and
a fan installed inside the one of the first duct and the second duct.

2. The cooking apparatus of claim 1 , further comprising a grill heater in the cooking chamber facing the first outlet.

3. The cooking apparatus of claim 1 , wherein the fan is a centrifugal fan installed inside the first duct.

4. The cooking apparatus of claim 3 , wherein the centrifugal fan is disposed so that a rotating shaft of the centrifugal fan faces the inlet.

5. The cooking apparatus of claim 4 , wherein the heater is provided in a shape surrounding the centrifugal fan.

6. The cooking apparatus of claim 1 , wherein a second outlet is formed in the first plate under the inlet to be in communication with the first duct, so that the first duct and the second duct are thereby further configured to guide air, used in the cooking chamber to cook food, from the inlet to the second outlet.

7. The cooking apparatus of claim 1 , further comprising:
a motor disposed outside the first duct and the second duct and configured to generate a driving force;
a first pulley provided at the motor;
a second pulley provided at the fan; and
a belt connecting the first and second pulleys together so that the driving force is transmitted to the fan.

8. The cooking apparatus of claim 7 , wherein the motor is provided to be rotatable in both of opposite directions.

9. The cooking apparatus of claim 1 , further comprising a controller configured to control a rotating speed of the fan.

10. The cooking apparatus of claim 1 , further comprising:
a controller configured to control a rotating speed of the fan to thereby control a discharging speed of the air through the first outlet.

11. The cooking apparatus of claim 10 , wherein the controller is configured to control the rotating speed of the fan, and thereby control the discharging speed, according to a kind of food to be cooked in the cooking chamber.

12. The cooking apparatus of claim 10 , wherein the fan is centrifugal fan disposed so that a rotating shaft of the centrifugal fan faces the inlet.

13. The cooking apparatus of claim 12 , wherein the heater is provided in a shape surrounding the centrifugal fan.

14. The cooking apparatus of claim 10 , wherein a second outlet is formed in the first plate under the inlet to be in communication with the first duct, so that the first duct and the second duct are thereby further configured to guide air, used in the cooking chamber to cook food, from the inlet to the second outlet.

15. The cooking apparatus of claim 10 , wherein the first outlet includes a plurality of outlet holes at a center area of the second plate.

16. The cooking apparatus of claim 1 , further comprising:
a controller configured to control a rotating speed of the fan according to a cooking mode, to thereby control a colliding speed of air discharged from the first outlet with food in the cooking chamber.

17. The cooking apparatus of claim 16 , wherein the controller is configured to control the air discharged from the first outlet to collide with the food at a speed of 1 m/s in a first cooking mode and to control the air discharged from the first outlet to collide with the food at a speed of 2 to 3 m/s in a second cooking mode.

18. The cooking apparatus of claim 1 , wherein the first duct and the second duct are plates coupled to each other at a right angle at the outside corner of the cooking chamber.

19. The cooking apparatus of claim 1 , further comprising:
a tray provided at a bottom surface of the cooking chamber to support food, wherein
the first outlet faces the tray and includes a blocking part and an outlet part surrounding the blocking part,
the outlet part includes a plurality of outlet holes, and
the blocking part is continuous, has a symmetric shape and is at least 10% of a total area of the blocking part and the outlet part, so that the blocking part blocks the air guided by the second duct from passing through the blocking part to enter the cooking chamber.

20. The cooking apparatus of claim 19 , wherein the blocking part is formed at a position of the second plate facing a center of the tray.

21. The cooking apparatus of claim 20 , wherein the blocking part and the outlet part together form an area having a diamond shape.

22. The cooking apparatus of claim 19 , further comprising a driving member configured to generate a rotating force to rotate the tray.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jung Min Gyu
• Jang Hyeong Jin
• Choi Kun Woo
• Kim Tae Hun
• Jeon In Ki
• Jeong Sang Jin
• Ha Yu Jeub
• Han Dong Gi

Classifications

• H05B6/80

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

• H05B6/6473 Primary

  combined with convection heating (H05B6/6485 takes precedence) · CPC title

• F24C15/325

  electrically-heated · CPC title

• F24C15/322 Primary

  with forced circulation · CPC title

• H05B6/6447

  Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors · CPC title