Cooking device

Patent metadata

Field	Value
Publication number	US-10159119-B2
Application number	US-201415025476-A
Country	US
Kind code	B2
Filing date	Sep 29, 2014
Priority date	Sep 27, 2013
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

A cooking device according to one embodiment of the present invention includes a cooking chamber configured to provide a space in which food is cooked; a magnetron configured to emit microwaves to the cooking chamber; and a heater configured to emit radiant heat to the cooking chamber, wherein the heater includes a filament, an outer pipe which protects the filament, and a blocking member which is located at an outside of the filament to block the microwaves emitted from the magnetron.

First claim

The invention claimed is:

1. A cooking device comprising:
a cooking chamber configured to provide a space in which food is cooked;
a magnetron configured to emit microwaves to the cooking chamber; and
a heater configured to emit radiant heat to the cooking chamber,
wherein the heater comprises a filament, an outer pipe which protects the filament, and a blocking member which covers an outer surface of the outer pipe to block the microwaves emitted from the magnetron,
wherein the heater further comprises an insulator which supports the outer pipe, and a fixing member which is coupled to the insulator and fixes a position of the blocking member,
wherein the blocking member is in contact with an outer surface of the insulator, and the fixing member covers a part of an outer surface of the blocking member.

2. The cooking device of claim 1 , wherein the blocking member is formed of a stainless material.

3. The cooking device of claim 1 , wherein the blocking member is formed in a mesh shape so that heat and light from the filament passes therethrough.

4. The cooking device of claim 3 , wherein an opening ratio of the blocking member is 70% or more.

5. The cooking device of claim 1 , wherein the blocking member covers an outside of the outer pipe, and is spaced apart from the outer pipe.

6. The cooking device of claim 5 , wherein the blocking member is formed in a tube shape.

7. The cooking device of claim 1 , wherein the fixing member comprises a first fixing member which covers the insulator, and a second fixing member which is coupled to the first fixing member, and a part of the blocking member is located between the first fixing member and the second fixing member.

8. The cooking device of claim 1 , wherein a part of the blocking member is located between the insulator and the fixing member.

9. The cooking device of claim 1 , wherein the blocking member is fitted to the fixing member.

10. The cooking device of claim 1 , further comprising an insulator which supports the outer pipe,
wherein a plurality of hooking loops which hook and fix the blocking member are provided at the insulator.

11. The cooking device of claim 5 , wherein a gap maintaining member which maintains a gap between the outer pipe and the blocking member is disposed between the outer pipe and the blocking member.

12. The cooking device of claim 11 , wherein the gap maintaining member covers a circumference of the outer pipe.

Assignees

• Lg Electronics Inc

Inventors

• Lee Youngjun
• Kim Yangkyeong
• Baek Seungjo

Classifications

• H05B1/0263

  Ovens · CPC title

• H05B6/76

  Prevention of microwave leakage, e.g. door sealings · CPC title

• H05B6/6482 Primary

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

• F24C7/04

  with heat radiated directly from the heating element · CPC title

• F24C7/02 Primary

  using microwaves · CPC title