Infrared induction doorbell with stable induction function

The utility model relates to an infrared induction doorbell with a stable induction function, which comprises a front cover, a lens buckle and a rear cover, a lens opening is arranged on the front cover, a lens sheet is arranged at the lens opening in the front cover, the lens buckle is fixedly arra...

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Bibliographic Details
Main Authors YING WEIDONG, JIN KAIDI
Format Patent
LanguageChinese
English
Published 04.10.2022
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:The utility model relates to an infrared induction doorbell with a stable induction function, which comprises a front cover, a lens buckle and a rear cover, a lens opening is arranged on the front cover, a lens sheet is arranged at the lens opening in the front cover, the lens buckle is fixedly arranged in the front cover through the matching of a buckle, and the lens sheet is fixed on the lens buckle. The two ends of the lens sheet are fixed through extrusion of the front cover and the lens buckle, a sealing ring is fixedly installed at the rear end of the lens buckle, and the front end of the lens buckle is communicated with the rear end of the lens buckle through the sealing ring. When the infrared sensing head is used, an internally isolated space is formed among the lens sheet, the lens buckle, the sealing ring, the sensing head cushion and the PCB through a unique structural design, so that the infrared sensing head in the isolated space is protected, hot air is prevented from flowing to the periphery o
Bibliography:Application Number: CN202221517979U