US 12,250,760 B2
Oven including plural antennas
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. 8, 2020, as Appl. No. 17/115,088.
Claims priority of application No. 10-2020-0055373 (KR), filed on May 8, 2020.
Prior Publication US 2021/0352779 A1, Nov. 11, 2021
Int. Cl. H05B 6/72 (2006.01); H05B 6/64 (2006.01)
CPC H05B 6/72 (2013.01) [H05B 6/6402 (2013.01); H05B 6/642 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An oven comprising:
a housing that defines a cooking space and an outer appearance of the oven, the housing comprising an upper frame that defines an upper wall facing the cooking space;
a heating unit disposed below the upper frame in a vertical direction and configured to transfer heat to the cooking space;
an antenna 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 forming part that protrudes outward from the upper frame to an outside of the housing to thereby accommodate the antenna therein, the forming part covering the antenna from the cooking space,
wherein the antenna comprises a plurality of antennas that are spaced apart from one another by a predetermined distance,
wherein the forming part comprises a plurality of forming parts that accommodate the plurality of antennas, respectively,
wherein the heating unit comprises:
a first member that extends from a rear part of the upper frame and defines an outer circumference of the heating unit, and
a second member that is disposed inside of the first member and extends from the rear part of the upper frame along the first member,
wherein the second member comprises:
a plurality of straight portions that extend in a first horizontal direction and are spaced apart from one another in a second horizontal direction orthogonal to the first horizontal direction, and
a plurality of curved portions that are spaced apart from one another in the second horizontal direction and connect ends of two adjacent straight portions of the plurality of straight portions to each other,
wherein the plurality of straight portions comprise (i) a pair of central straight portions that face the rear part of the upper frame, (ii) a pair of left straight portions disposed at a left side of the pair of central straight portions, and (iii) a pair of right straight portions disposed at a right side of the pair of central straight portions, and
wherein the plurality of antennas comprise (i) a first antenna disposed between the pair of left straight portions and (ii) a second antenna disposed between the pair of right straight portions such that the first and second antennas do not overlap with the heating unit along the vertical direction.