US 12,334,287 B2
Vacuum degree detection device, monitoring system, and vacuum arc extinguishing chamber thereof
Yi Wu, Shaanxi (CN); Hailong He, Shaanxi (CN); Chunping Niu, Shaanxi (CN); Mingzhe Rong, Shaanxi (CN); Hongrui Ren, Shaanxi (CN); and Xiaolong Chen, Shaanxi (CN)
Assigned to XI'AN JIAOTONG UNIVERSITY, Xi'an (CN)
Filed by XI'AN JIAOTONG UNIVERSITY, Shaanxi (CN)
Filed on May 22, 2023, as Appl. No. 18/200,381.
Claims priority of application No. 202210566163.0 (CN), filed on May 23, 2022; and application No. 202210567533.2 (CN), filed on May 23, 2022.
Prior Publication US 2023/0377819 A1, Nov. 23, 2023
Int. Cl. H01H 33/668 (2006.01); G01L 21/12 (2006.01); H01H 33/662 (2006.01); H10N 10/13 (2023.01); H10N 19/00 (2023.01)
CPC H01H 33/668 (2013.01) [G01L 21/12 (2013.01); H01H 33/66207 (2013.01); H10N 10/13 (2023.02); H10N 19/00 (2023.02); H01H 2033/66223 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vacuum degree detection device of a vacuum arc-extinguishing chamber, comprising;
a ceramic insulating housing sealingly fixed to an end face cover plate of the vacuum arc-extinguishing chamber, the ceramic insulating housing being a circular ring-shaped structure coaxial with a conductive rod on the end face cover plate, a sealing area formed by the end face cover plate and the ceramic insulating housing being provided with a through hole communicating with the vacuum arc-extinguishing chamber;
a thermoelectric vacuum sensor disposed inside the ceramic insulating housing to detect the vacuum degree of the vacuum arc-extinguishing chamber, the thermoelectric vacuum sensor comprising;
a cold end fixed to the end face cover plate through which heat is transferred with the conductive rod;
an electrode supported on the cold end;
a thermoelectric arm supported on the electrode;
a hot end laminated on the thermoelectric arm;
a thermal resistance block laminated on the hot end; and
a heating device laminated on the thermal resistance block.