Detector unit and sensing chamber therefor
First Claim
1. A hazard detection unit comprising:
- a housing;
a circuit board positioned within the housing and having a plurality of components mounted thereon; and
a sensing chamber for detecting one or more types of airborne substances indicative of a hazardous condition, the sensing chamber having a top surface, a bottom surface, and at least one air permeable side surface that allows air flow into and out of an interior of the sensing chamber;
wherein said circuit board has an aperture formed therein, and wherein said sensing chamber is disposed within the aperture such that the top surface of the sensing chamber is positioned on a first side of the circuit board and the bottom surface of the sensing chamber is positioned on a second side of the circuit board so that air is flowable into and out of the interior of the sensing chamber from both the first side and the second side of the circuit board.
3 Assignments
0 Petitions
Accused Products
Abstract
According to one embodiment, a hazard detector may include a back plate and a front casing coupled to the back plate to define a housing having an interior region and an opening through which air flows into the interior region. A circuit board may be coupled to the back plate and have a plurality of components mounted thereon. A smoke chamber may be mid-mounted on the circuit board, mid-mounting being characterized in the smoke chamber extending through a hole formed in the circuit board such 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, whereby an interior region of the smoke chamber is accessible to smoke from both the top and bottom surfaces of the circuit board.
105 Citations
20 Claims
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1. A hazard detection unit comprising:
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a housing; a circuit board positioned within the housing and having a plurality of components mounted thereon; and a sensing chamber for detecting one or more types of airborne substances indicative of a hazardous condition, the sensing chamber having a top surface, a bottom surface, and at least one air permeable side surface that allows air flow into and out of an interior of the sensing chamber; wherein said circuit board has an aperture formed therein, and wherein said sensing chamber is disposed within the aperture such that the top surface of the sensing chamber is positioned on a first side of the circuit board and the bottom surface of the sensing chamber is positioned on a second side of the circuit board so that air is flowable into and out of the interior of the sensing chamber from both the first side and the second side of the circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A hazard detection unit comprising:
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a housing; a circuit board positioned within the housing; and a sensing chamber for detecting one or more substances that are indicative of a hazardous condition, said sensing chamber being disposed within an aperture formed in the circuit board so that a top surface of the sensing chamber is positioned on a first side of the circuit board and a bottom surface of the sensing chamber is positioned on a second side of the circuit board; wherein air is flowable into and out of an interior of the sensing chamber from both the first side and the second side of the circuit board. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for manufacturing a hazard detection unit comprising:
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mounting a circuit board within a housing of the hazard detection unit; and positioning a sensing chamber through an aperture of the circuit board so that a top surface of the sensing chamber is positioned on a first side of the circuit board and a bottom surface of the sensing chamber is positioned on a second side of the circuit board such that air is flowable into an interior of the sensing chamber from both the first side and the second side of the circuit board, the sensing chamber being configured to detect one or more substances that are indicative of a hazardous condition. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification