公开(公告)号：US11846588B2

公开(公告)日：2023-12-19

申请号：US16918800

申请日：2020-07-01

Applicant: Xuedan Wu

Inventor： Xuedan Wu

IPC: G01N21/53 ,  G01N33/00 ,  G08B17/107

CPC classification number: G01N21/53 ,  G01N33/0036 ,  G08B17/107 ,  G01N2201/0638

Abstract: The present invention relates generally to fire detection and alarm technology, and more particularly, to a detection component, a detection system and a fire alarm applicable for the Photoelectric Smoke Detection Fire Alarm. The scattering mechanism ensures scattering fitting with the receiving tube to make the size and detection accuracy of the fire alarm fulfill requirements, and the circuit detection system and maze structure improve detection accuracy and reduce the interference of external light.