Cooking device and burner

Patent metadata

Field	Value
Publication number	US-10215405-B2
Application number	US-201615008165-A
Country	US
Kind code	B2
Filing date	Jan 27, 2016
Priority date	Jan 28, 2015
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

A cooking device is provided. The cooking device includes a burner body having a nozzle to supply a gas, a burner head provided above the burner body, and having a mixed gas chamber in which air and the gas injected from the nozzle are introduced. a burner cap provided on the burner head, a flame remaining chamber provided at the burner head and separated from the mixed gas chamber, and a flame detection unit to pass through the burner head and located at the flame remaining chamber.

First claim

What is claimed is:

1. A burner comprising:
a burner body having a nozzle to supply a gas;
a burner head provided above the burner body and having a mixed gas chamber in which air and the gas injected from the nozzle are introduced;
a burner cap provided on the burner head;
a flame remaining chamber provided at the burner head and separate from the mixed gas chamber; and
a flame detection unit provided at the flame remaining chamber,
wherein the burner head comprises an outer wall which has a flame hole, an inner wall which is located inside the outer wall, and a chamber forming wall spanning the outer wall and the inner wall to form the flame remaining chamber,
wherein the flame detection unit is located between the outer wall and the inner wall,
wherein the outer wall is extends above a bottom wall of the flame remaining chamber,
wherein the burner body comprises:
a gas supply chamber through which the gas injected from the nozzle flows,
a sensor accommodation part that is separate from the gas supply chamber,
an air supply opening through which the air is introduced into the gas supply chamber, and
a barrier member extending upward from an edge of the air supply opening and configured to prevent foreign substances from cooking activities from being introduced into the gas supply chamber,
wherein the barrier member comprises:
a first barrier member which extends upward from a first portion of the edge of the air supply opening adjacent to the sensor accommodation part, and
a second barrier which extends upward from a second portion of the air supply opening toward an top surface of the burner body and concentric to the first barrier member,
wherein a height of first barrier member is higher than a height of the second barrier.

2. The burner of claim 1 , wherein a hole through which the flame detection unit passes is provided at the bottom wall of the flame remaining chamber.

3. The burner of claim 1 , wherein the chamber forming wall comprises a mixed gas introduction hole through which the mixed gas in the mixed gas chamber is introduced into the flame remaining chamber.

4. The burner of claim 1 , wherein an air introduction port through which the air is introduced into the flame remaining chamber is provided at the outer wall of the burner head.

5. The burner of claim 1 , wherein a bottom wall of the chamber forming wall is positioned below a bottom wall of the mixed gas chamber.

6. The burner of claim 5 , wherein an top surface of the flame detection unit is positioned above the bottom wall of the mixed gas chamber.

7. The burner of claim 1 , wherein the burner cap covers a top surface of the flame detection unit.

8. The burner of claim 1 , further comprising a sensor provided in the burner body that passes through the burner head and the burner cap, and extends above the burner cap.

9. The burner of claim 1 , wherein the first barrier member contacts a bottom surface of the burner head, and the second barrier member is spaced apart from the bottom surface of the burner head.

10. The burner of claim 1 , wherein the burner body further comprises a withdrawing opening through which a substance that is introduced into the sensor accommodation part can be discharged.

11. The burner of claim 1 , wherein the burner body further comprises a first installation part at which the flame detection part is provided.

12. The burner of claim 11 , further comprising an ignition unit to ignite the mixed gas of the burner head, wherein the burner body further comprises a second installation part at which the ignition unit is provided and which is located at an opposite side of the first installation part in relation to the sensor accommodation part.

13. A cooking device comprising:
a burner body;
a burner head provided on the burner body, where in the burner head comprises:
a mixed gas chamber in which a mixed gas of a gas and air is accommodated, and a flame remaining chamber which is separate from the mixed gas chamber;
a burner cap to cover top surfaces of the mixed gas chamber and the flame remaining chamber;
an ignition unit to ignite the mixed gas supplied to the mixed gas chamber;
a flame detection unit provided at least partially in the flame remaining chamber to detect a flame of the flame remaining chamber;
a gas valve to control a flow of the gas to be supplied to the burner body; and
a control unit to control the gas valve,
wherein the burner head comprises an outer wall which has a flame hole, an inner wall which is located inside the outer wall, and a chamber forming wall spanning the outer wall and the inner wall to form the flame remaining chamber,
wherein the flame detection unit is located between the outer wall and the inner wall,
wherein the outer wall is extends above a bottom wall of the flame remaining chamber,
wherein the burner body comprises:
a gas supply chamber through which the gas injected from the nozzle flows,
a sensor accommodation part that is separate from the gas supply chamber,
an air supply opening through which the air is introduced into the gas supply chamber, and
a barrier member extending upward from an edge of the air supply opening and configured to prevent foreign substances from cooking activities from being introduced into the gas supply chamber,
wherein the barrier member comprises:
a first barrier member which extends upward from a first portion of the edge of the air supply opening adjacent to the sensor accommodation part, and
a second barrier which extends upward from a second portion of the air supply opening toward an top surface of the burner body and concentric to the first barrier member,

wherein a height of first barrier member is higher than a height of the second barrier.

14. The cooking device of claim 13 , further comprising a sensor that protrudes above the burner cap and detects a temperature,
wherein the control unit controls the gas valve based on information detected by the sensor and information detected by the flame detection unit.

15. The cooking device of claim 14 , wherein the flame detection unit, the sensor and the ignition unit are provided at the burner body, and the sensor is provided at a location between the flame detection unit and the ignition unit.

16. The cooking device of claim 13 ,
wherein the flame detection unit passes through a bottom wall of the chamber forming wall and into the flame remaining chamber.

Assignees

• Lg Electronics Inc

Inventors

• Kim Yangho
• Kim Youngsoo

Classifications

• F23D14/04 Primary

  induction type, e.g. Bunsen burner · CPC title

• F23D14/725 Primary

  Protection against flame failure by using flame detection devices (pilot flame igniters with interlock with main fuel supply F23Q9/08) · CPC title

• F23N5/105

  using electrical or electromechanical means · CPC title

• F23N5/10

  using thermocouples · CPC title

• F23D14/72

  Safety devices, e.g. operative in case of failure of gas supply · CPC title