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Detector unit and sensing chamber therefor

  • US 9,460,600 B2
  • Filed: 02/26/2015
  • Issued: 10/04/2016
  • Est. Priority Date: 09/21/2012
  • Status: Active Grant
First Claim
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1. A smoke detection unit for use in a building or structure comprising:

  • a housing having a back surface that faces a ceiling or wall of the building or structure and a front surface facing a floor or opposite wall of the building or structure, the housing comprising;

    a circuit board positioned within the housing and having a plurality of components mounted thereon so as to support and electrically couple the components; and

    a smoke chamber mounted on the circuit board, the smoke chamber having one or more components configured to detect a presence of smoke and having a plurality of baffles positioned on at least one side of the smoke chamber through which smoke flows into an interior of the smoke chamber, the smoke chamber being mounted on the circuit board so that a top surface of the smoke chamber is positioned above a top surface of the circuit board and a bottom surface of the smoke chamber is positioned below a bottom surface of the circuit board with at least some of the baffles extending above the top surface of the circuit board and below the bottom surface of the circuit board such that smoke is flowable into the interior of the smoke chamber from both the top surface of the circuit board and the bottom surface of the circuit board.

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