US 12,228,532 B2
Gas detection probe including compact design
Dezhi Cheng, Hangzhou (CN); Yuxiang Zhang, Hangzhou (CN); Longzhong Huang, Hangzhou (CN); Qihong Jin, Hangzhou (CN); and Linjie Huang, Hangzhou (CN)
Assigned to HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD., Hangzhou (CN)
Filed by HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD., Hangzhou (CN)
Filed on Sep. 21, 2022, as Appl. No. 17/949,250.
Claims priority of application No. 202111140269.6 (CN), filed on Sep. 28, 2021.
Prior Publication US 2023/0098849 A1, Mar. 30, 2023
Int. Cl. G01N 27/04 (2006.01); G01M 3/16 (2006.01)
CPC G01N 27/045 (2013.01) [G01M 3/16 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A gas detection probe, comprising:
a detection element comprising a first element and a second element, a resistance value of the detection element being changeable with change of gas concentration; and
a shell comprising a first shell portion, a second shell portion and a third shell portion, at least part of the first shell portion and at least part of the second shell portion protruding beyond the third shell portion along a height direction of the gas detection probe, the second shell portion and the third shell portion being mated and formed at an outer peripheral side of the first shell portion, at least part of the second shell portion circumferentially surrounding the first shell portion;
wherein the shell has a first cavity and a second cavity which are not communicated, at least part of the first shell portion is located between the first cavity and the second cavity, the first shell portion is in sealing connection with the third shell portion, the first cavity is hermetically arranged, the second shell portion is provided with a guide hole portion extending therethrough, the guide hole portion communicates with the second cavity, the first element is accommodated in the first cavity, and the second element is accommodated in the second cavity.