US 12,467,811 B2
Sealing pin, pressure detention module and pressure sensor
Tinghui (Felix) Fu, Shenzhen (CN); Xu Liang, Shenzhen (CN); and Long (Allen) Wang, Shenzhen (CN)
Assigned to Measurement Specialties (China) Ltd., Shenzhen (CN)
Filed by Measurement Specialties (China) Ltd., Shenzhen (CN)
Filed on Nov. 3, 2022, as Appl. No. 17/980,115.
Claims priority of application No. 202111299135.9 (CN), filed on Nov. 4, 2021.
Prior Publication US 2023/0135371 A1, May 4, 2023
Int. Cl. G01L 9/00 (2006.01); G01L 19/14 (2006.01)
CPC G01L 9/0041 (2013.01) [G01L 19/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pressure sensor, comprising:
a liquid filling path having a liquid filling port;
a diaphragm;
a pressure detection chip; and
a sealing pin having a groove, the sealing pin is inserted into the liquid filling path and seals the liquid filling port, an external media pressure applied to the diaphragm is transmitted to the pressure detection chip through a liquid in the groove.