US 11,985,753 B2
Oven
Junghyeong Ha, Seoul (KR); Sunghun Sim, Seoul (KR); Yunbyung Chae, Seoul (KR); and Chaehyun Baek, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Dec. 10, 2020, as Appl. No. 17/117,385.
Claims priority of application No. 10-2020-0055375 (KR), filed on May 8, 2020.
Prior Publication US 2021/0352780 A1, Nov. 11, 2021
Int. Cl. H05B 6/72 (2006.01); F24C 7/02 (2006.01); F24C 7/06 (2006.01); H05B 6/64 (2006.01); H05B 6/70 (2006.01)
CPC H05B 6/72 (2013.01) [F24C 7/02 (2013.01); F24C 7/06 (2013.01); H05B 6/6482 (2013.01); H05B 6/707 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An oven comprising:
a housing that defines a cooking space, the housing comprising an upper frame that defines an upper wall facing the cooking space;
a heating unit disposed adjacent to the upper frame and configured to transfer heat to the cooking space, the heating unit extending along a predetermined pattern that defines a closed area;
a support member in contact with a plurality of points of the heating unit;
a plurality of antennas disposed at the upper frame and configured to emit, toward the cooking space, radio waves transmitted from a radio wave generator that is electrically connected to an external power source; and
a mounting portion protruding from a first side of the support member toward the upper frame, connecting the support member to the upper frame, and made of a metal material,
wherein each of the plurality of antennas comprises:
a feeding portion electrically connected to the external power source,
a grounding portion electrically connected to a ground, and
a radiating portion connected to the feeding portion and the grounding portion and configured to emit the radio waves, and
wherein the mounting portion includes a plurality of mounting portions that are disposed at the support member at positions that intersect virtual vertical lines each connecting the feeding portion and the grounding portion of the antenna.