Housing for a detection unit for optically detecting smoke particles

US12044608B2 · kind B2 · utility

Assignee

• Minimax Viking Research & Development GmbH · DE

Inventors

• Jens Eichmann · Bad Oldesloe, DE
• Carl Dechau · Zarpen, DE
• Thorsten Mitzlaff · Bad Oldesloe, DE
• Timo ZIEGENBEIN · Mollhagen, DE
• Hauke Dittmer · Puttgarden, DE
• Dirk Siemer · Rethwisch, DE

Key dates

• Filing date: Jul 31, 2020
• Grant date: Jul 23, 2024
• Expiry date: Feb 18, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2015/0046
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a housing for a detection unit for optically detecting smoke particles. The detection unit has a light source for emitting radiation to be scattered by smoke particles to be detected and a light detector for detecting the scattered radiation. The housing 2 has a cylindrical outer surface 7 having smoke openings 8 through which the smoke particles enter housing 2, and a radially symmetric light-guiding structure 9 with guide members. The guide members are so designed that adjacent guide members each form a guide channel through which the radiation emitted from the light source and not scattered by the smoke particles is guidable to the outside in the direction of the smoke openings 8 by multiple reflection. Higher detection sensitivity for optically detecting smoke particles can be achieved as a result.