US 12,289,817 B1
Microwave heating cavity
Chunliang Xu, Shijiazhuang (CN); Hongtao Wei, Shijiazhuang (CN); Xiaoliang Li, Shijiazhuang (CN); Tong Li, Shijiazhuang (CN); Junkui Song, Shijiazhuang (CN); Fei Zhang, Shijiazhuang (CN); and Daomin Cai, Shijiazhuang (CN)
Assigned to The 13th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang (CN)
Filed by The 13th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang (CN)
Filed on Jan. 8, 2025, as Appl. No. 19/013,880.
Application 19/013,880 is a continuation of application No. PCT/CN2024/095672, filed on May 28, 2024.
Claims priority of application No. 202410197908.X (CN), filed on Feb. 22, 2024.
Int. Cl. H05B 6/64 (2006.01); H05B 6/72 (2006.01)
CPC H05B 6/6402 (2013.01) [H05B 6/6426 (2013.01); H05B 6/72 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A microwave heating cavity comprising:
a metal shell, wherein a middle cavity is provided in the metal shell, the middle cavity extends through the metal shell along a length direction of the metal shell, and the middle cavity comprises a first mounting cavity, a concave air cavity and a second mounting cavity that are sequentially formed along the length direction of the metal shell;
a heating sleeve mounted in the first mounting cavity, with a first end of the heating sleeve extending into the concave air cavity, wherein an accommodating cavity is arranged in the heating sleeve;
a dielectric medium arranged in the accommodating cavity, wherein a first end of the dielectric medium extends out of the heating sleeve;
an antenna bracket mounted in the second mounting cavity;
a ceramic rod mounted at a middle of the antenna bracket, wherein the ceramic rod extends into the accommodating cavity and is in contact with the dielectric medium; and
a metal wire spirally wound around the ceramic rod, wherein the metal wire is configured to be connected with an external power.