US 12,074,006 B2
Radiation emission device
Dun Li, Wuhan (CN); Mingchun Zhai, Wuhan (CN); Guangzhong Bao, Wuhan (CN); and Xiao Fang, Shanghai (CN)
Assigned to SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed by SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed on Jun. 13, 2022, as Appl. No. 17/806,732.
Application 17/806,732 is a continuation of application No. 17/084,699, filed on Oct. 30, 2020, granted, now 11,361,930.
Application 17/084,699 is a continuation of application No. 16/023,076, filed on Jun. 29, 2018, granted, now 10,825,637, issued on Nov. 3, 2020.
Application 16/023,076 is a continuation of application No. PCT/CN2017/099940, filed on Aug. 31, 2017.
Prior Publication US 2022/0310352 A1, Sep. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01J 35/10 (2006.01); H05G 1/02 (2006.01)
CPC H01J 35/106 (2013.01) [H01J 35/1024 (2019.05); H01J 35/107 (2019.05); H05G 1/025 (2013.01); H01J 2235/1006 (2013.01); H01J 2235/1204 (2013.01); H01J 2235/1208 (2013.01); H01J 2235/1262 (2013.01); H01J 2235/1266 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radiation emission device, comprising:
a cathode configured to emit an electron beam;
an anode configured to rotate on a shaft, the anode being situated to receive the electron beam;
a rotor configured to drive the anode to rotate, the rotor being mechanically connected to the shaft;
a sleeve configured to support the shaft via at least one bearing; and
an enclosure configured to enclose the cathode, the anode, and the rotor, wherein the enclosure is connected to the sleeve, and at least a portion of the sleeve is immersed in a cooling medium.