Aspirating smoke detector device

Patent metadata

Field	Value
Publication number	US-2022383720-A1
Application number	US-202117335634-A
Country	US
Kind code	A1
Filing date	Jun 1, 2021
Priority date	Jun 1, 2021
Publication date	Dec 1, 2022
Grant date	—

Abstract

Devices, systems, and methods for an aspirating smoke detector device are described herein. In some examples, one or more embodiments include an aspirating smoke detector device comprising a printed circuit board (PCB), a manifold including a first flow channel and a second flow channel, a blower housing configured to receive a blower, a first sensor head housing connected to the blower housing via the first flow channel, wherein the first sensor head housing is configured to receive a first sensor head, and a second sensor head housing connected to the blower housing via the second flow channel, wherein the second sensor head housing is configured to receive a second sensor head, and a gasket configured to fluidically seal the manifold to the PCB.

First claim

What is claimed:

1 . An aspirating smoke detector device, comprising:
a printed circuit board (PCB); a manifold, including:
a first flow channel and a second flow channel;
a blower housing configured to receive a blower;
a first sensor head housing connected to the blower housing via the first flow channel, wherein the first sensor head housing is configured to receive a first sensor head; and
a second sensor head housing connected to the blower housing via the second flow channel, wherein the second sensor head housing is configured to receive a second sensor head; and
a gasket configured to fluidically seal the manifold to the PCB.

2 . The aspirating smoke detector device of claim 1 , wherein the PCB includes:
a first pair of ultrasonic sensors exposed in the first flow channel; and a second pair of ultrasonic sensors exposed in the second flow channel; wherein the first and the second pairs of ultrasonic sensors are configured to measure a gas flow rate of a gas through the aspirating smoke detector device.

3 . The aspirating smoke detector device of claim 1 , wherein the aspirating smoke detector device further includes a housing having a first housing inlet, a second housing inlet, and a housing outlet.

4 . The aspirating smoke detector device of claim 3 , wherein:
the first sensor head housing includes a first sensor head housing inlet that is coaxial with the first housing inlet; and the second sensor head housing includes a second sensor head housing inlet that is coaxial with the second housing inlet.

5 . The aspirating smoke detector device of claim 3 , wherein:
the first housing inlet is connected to a first inlet pipe via a first inlet adapter; and the second housing inlet is connected to a second inlet pipe via a second inlet adapter; wherein the first inlet adapter is to fluidically seal the first inlet pipe and the first housing inlet and the second inlet adapter is to fluidically seal the second inlet pipe and the second housing inlet.

6 . The aspirating smoke detector device of claim 3 , wherein the housing outlet is connected to an outlet adapter having a mesh filter.

7 . The aspirating smoke detector device of claim 6 , wherein the housing outlet is connected to an exhaust pipe via the outlet adapter, wherein the outlet adapter is oriented such that the outlet adapter is to receive the exhaust pipe.

8 . The aspirating smoke detector device of claim 1 , wherein the gasket is a thermoplastic-rubber gasket.

9 . The aspirating smoke detector device of claim 1 , wherein:
the PCB includes a light emitting diode (LED); and the manifold further includes a light pipe.

10 . The aspirating smoke detector device of claim 9 , wherein the manifold is to cover a portion of the PCB such that the light pipe is oriented above the LED such that the LED is visible when a cover is connected to the manifold.

11 . An aspirating smoke detector device, comprising:
a housing; a printed circuit board (PCB) housed by the housing; and a manifold to cover a first portion of the PCB, including:
a first flow channel and a second flow channel;
a blower housing, wherein the blower housing is configured to receive a blower;
a first sensor head housing connected to the blower housing via the first flow channel, wherein the first sensor head housing is configured to receive a first sensor head; and
a second sensor head housing connected to the blower housing via the second flow channel, wherein the second sensor head housing is configured to receive a second sensor head; and
a gasket configured to fluidically seal the manifold to the PCB.

12 . The aspirating smoke detector device of claim 11 , wherein:
the blower housing is configured to receive a blower housing cover to cover the blower; and the blower housing includes a cover gasket to fluidically seal the blower housing to the blower housing cover.

13 . The aspirating smoke detector device of claim 11 , wherein:
the first sensor head housing and the second sensor head housing are configured to receive a sensor head housing cover to cover the first sensor head and the second sensor head; and the first sensor head housing and the second sensor head housing include a cover gasket to fluidically seal the first sensor head housing and the second sensor head housing to the sensor head housing cover.

14 . The aspirating smoke detector device of claim 11 , wherein the first flow channel and the second flow channel have constant cross-sectional dimensions.

15 . The aspirating smoke detector device of claim 11 , wherein the manifold is connected to the housing via snap clips.

16 . A method of manufacturing an aspirating smoke detector device, comprising:
providing a housing; providing a printed circuit board (PCB); positioning the PCB to be housed by the housing; providing a manifold including a gasket, a blower housing, a first sensor head housing, and a second sensor head housing; positioning the manifold with respect to the housing such that the gasket interfaces with and compresses against the PCB to fluidically seal the manifold to the PCB; positioning:
a blower in the blower housing;
a first sensor head in the first sensor head housing such that the first sensor head is secured in the first sensor head housing; and
a second sensor head in the second sensor head housing such that the second sensor head is secured in the second sensor head housing; and
attaching:
a blower housing cover to the blower housing to secure the blower in the blower housing; and
a sensor head housing cover to the first sensor head housing and the second sensor head housing.

17 . The method of claim 16 , wherein:
providing the manifold further includes providing a further gasket on the blower housing; and the blower housing cover is to interface with the further gasket to fluidically seal the blower housing.

18 . The method of claim 16 , wherein:
providing the manifold further includes providing a further gasket on the first sensor head housing and the second sensor head housing; and the sensor head housing cover is to interface with the further gasket to fluidically seal the first sensor head housing and the second sensor head housing.

19 . The method of claim 16 , wherein the method includes providing the manifold using a multi-shot molding.

20 . The method of claim 16 , wherein the method includes providing an additional cover and attaching the additional cover to the housing.

Assignees

• Honeywell Int Inc

Inventors

• Pace Gianluca
• Piro Domenico
• Miheli Mauro

Classifications

• G08B17/113 Primary

  Constructional details · CPC title

• G08B17/10 Primary

  Actuation by presence of smoke or gases {, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means} · CPC title

• G08B25/10

  using wireless transmission systems {(G08B25/009 takes precedence)} · CPC title

• G01N15/06

  Investigating concentration of particle suspensions (by weighing G01N5/00; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10) · CPC title

• G01F1/662

  Constructional details · CPC title