DETECTOR UNIT AND SENSING CHAMBER THEREFOR
First Claim
1. A smoke detection unit for use in a building or structure for detecting the presence of smoke, the smoke detection unit comprising:
- a housing having an interior region within which components of the smoke detection unit are contained, the housing having a plurality of openings through which air flows so as to be accessible to the interior region of the housing, the housing comprising;
a back plate that is couplable to a wall of the building or structure so as to secure the smoke detection unit relative thereto;
a front casing coupled to the back plate to define the interior region of the housing;
a circuit board coupled to the back plate and having a plurality of components mounted thereon so as to support the components and electrically couple the components;
an alarm device mounted on the circuit board, the alarm device being activatable upon the detection of the presence of smoke so as to warn an occupant of the building or structure of a potential danger; and
a smoke chamber mounted on the circuit board, the smoke chamber having a top surface facing outwardly in a direction of the front casing, a bottom surface facing toward a direction of the back plate, and one or more sides that define an interior chamber, the smoke chamber having one or more components configured to detect the presence of smoke in the interior chamber so as to trigger the alarm device, the smoke chamber comprising a plurality of baffles positioned on at least one side, wherein the smoke chamber is mounted on the circuit board such that the top surface of the smoke chamber is positioned above a top surface of the circuit board and the bottom surface of the smoke chamber is positioned below a bottom surface of the circuit board such that the interior chamber is accessible to smoke from both the top surface of the circuit board and the bottom surface of the circuit board.
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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.
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Citations
25 Claims
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1. A smoke detection unit for use in a building or structure for detecting the presence of smoke, the smoke detection unit comprising:
a housing having an interior region within which components of the smoke detection unit are contained, the housing having a plurality of openings through which air flows so as to be accessible to the interior region of the housing, the housing comprising; a back plate that is couplable to a wall of the building or structure so as to secure the smoke detection unit relative thereto; a front casing coupled to the back plate to define the interior region of the housing; a circuit board coupled to the back plate and having a plurality of components mounted thereon so as to support the components and electrically couple the components; an alarm device mounted on the circuit board, the alarm device being activatable upon the detection of the presence of smoke so as to warn an occupant of the building or structure of a potential danger; and a smoke chamber mounted on the circuit board, the smoke chamber having a top surface facing outwardly in a direction of the front casing, a bottom surface facing toward a direction of the back plate, and one or more sides that define an interior chamber, the smoke chamber having one or more components configured to detect the presence of smoke in the interior chamber so as to trigger the alarm device, the smoke chamber comprising a plurality of baffles positioned on at least one side, wherein the smoke chamber is mounted on the circuit board such that the top surface of the smoke chamber is positioned above a top surface of the circuit board and the bottom surface of the smoke chamber is positioned below a bottom surface of the circuit board such that the interior chamber is accessible to smoke from both the top surface of the circuit board and the bottom surface of the circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of using a smoke detector comprising:
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providing a smoke detector, wherein the smoke detector comprises; a housing having an interior region, the housing having at least one opening through which air flows so as to be accessible to the interior region of the housing, the housing comprising; a back plate couplable to a wall of a structure to secure the smoke detector to the structure; a front casing coupled to the back plate to define the interior region of the housing; and a circuit board coupled to the back plate and having a plurality of components mounted thereon, wherein the plurality of components include; an alarm device; and a smoke chamber, the smoke chamber being coupled to the circuit board such that air is flowable into the smoke chamber from one side of the circuit board and flowable out of the smoke chamber from an opposite side of the circuit board so as to provide substantially unimpeded flow of air into the smoke chamber; and operating the smoke detector to detect smoke.
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18. A method for manufacturing a smoke detector comprising:
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providing a back plate, the back plate being couplable to a wall of a structure so as to secure the smoke detector to the structure; coupling a front casing with the back plate so as to define a housing having an interior region within which components of the smoke detector are contained, wherein either or both the front casing or the back plate includes openings through which air flows so as to be accessible to the interior region of the housing; coupling a circuit board with the back plate, the circuit board being configured to support and electrically couple one or more components of the smoke detector; providing a smoke chamber having a plurality of baffles positioned on at least one side of the smoke chamber; and coupling the smoke chamber with 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 such that smoke is flowable into the smoke chamber from both the top surface of the circuit board and the bottom surface of the circuit board.
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19. A smoke detector comprising:
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a back plate couplable to a wall of a structure to secure the smoke detector to the structure; a front casing coupled to the back plate to define a housing having an interior region and at least one opening through which air flows so as to be accessible to the interior region of the housing; a circuit board coupled to the back plate and having a plurality of components mounted thereon; and a smoke chamber, the smoke chamber being mid-mounted on the circuit board, said mid-mounting being characterized in that the smoke chamber extends 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 chamber is accessible to smoke from both the top surface of the circuit board and the bottom surface of the circuit board. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification