WO2023153480A1 - Détecteur de fumée - Google Patents

Détecteur de fumée Download PDF

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Publication number
WO2023153480A1
WO2023153480A1 PCT/JP2023/004421 JP2023004421W WO2023153480A1 WO 2023153480 A1 WO2023153480 A1 WO 2023153480A1 JP 2023004421 W JP2023004421 W JP 2023004421W WO 2023153480 A1 WO2023153480 A1 WO 2023153480A1
Authority
WO
WIPO (PCT)
Prior art keywords
smoke detection
detection unit
housing
unit
smoke
Prior art date
Application number
PCT/JP2023/004421
Other languages
English (en)
Japanese (ja)
Inventor
義裕 熊倉
智宏 星野
Original Assignee
能美防災株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 能美防災株式会社 filed Critical 能美防災株式会社
Publication of WO2023153480A1 publication Critical patent/WO2023153480A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke

Definitions

  • the present invention relates to a device for detecting smoke.
  • a smoke detection device that detects the generation of smoke in the monitored space by detecting the smoke contained in the monitored space.
  • a smoke detection device generally includes a sensor that detects smoke and a housing that houses the sensor. Some smoke detectors also have a suction part (such as a fan) to create a flow of air from the outside to the sensor inside the housing, and a suction part (such as a fan) to prevent dust contained in the air heading for the sensor from adhering to the sensor. filter and the like.
  • a suction part such as a fan
  • a suction part such as a fan
  • the suction unit is configured as a detachable unit (hereinafter referred to as a suction unit)
  • the suction unit including the failed suction unit can be replaced at the site where the smoke detection device is installed.
  • the smoke detection device can be easily normalized.
  • Patent Document 1 is a patent document that discloses a smoke detection device that includes some components as detachable units.
  • Patent Document 1 discloses a suction unit that sucks outside air, a detection unit that detects smoke particles from the sucked outside air, a casing that allows the sucked outside air to pass, and a filter for removing dust from the outside air in the casing. is described as a unit separately removable from the housing.
  • a pipe that guides the air in the monitored space to the housing space of the sensor of the smoke detection device (hereinafter referred to as an intake pipe) and a pipe that guides the air guided to the sensor housing space to the space to which it is exhausted (hereinafter , exhaust pipes) and connect their intake and exhaust pipes to smoke detection devices.
  • FIG. 13 is a diagram schematically showing the configuration of a conventional smoke detection device 9 of a type connected to an intake pipe and an exhaust pipe.
  • 13(A) shows the appearance of the smoke detection device 9
  • FIG. 13(B) shows the state where the lid 911 forming the front portion of the housing 91 of the smoke detection device 9 is removed.
  • 13(C) is a top view of the smoke detection device 9
  • FIG. 13(D) is a bottom view of the smoke detection device 9. As shown in FIG.
  • the smoke detection device 9 includes a housing 91 and a display unit 92 as components visible from the outside.
  • the display unit 92 has a touch screen, for example, and serves as a user interface that displays various types of information to the user and receives touch operations from the user.
  • the lid 911 is provided with an opening (window) corresponding to the position of the display unit 92. Even with the lid 911 attached, the display unit 92 can be visually recognized from the outside of the housing 91, and the display unit 92 can be touched. Manipulation is also possible.
  • the smoke detection device 9 includes an intake pipe 7, which is a pipe that guides air from the space S1 to be monitored to the smoke detection device 9, and an exhaust pipe, which is a pipe that guides air from the smoke detection device 9 to the space S2 of the exhaust destination. 8 is connected.
  • a housing 91 accommodates a smoke detection unit 93 , a power supply unit 94 and a data processing unit 95 in addition to the display unit 92 .
  • the display unit 92 , the smoke detection unit 93 , the power supply unit 94 and the data processing unit 95 are each held at predetermined positions by the housing 91 .
  • any method for holding these components by the housing 91 any method such as screwing, fitting, hooking with hooks, connection with hook-and-loop fasteners, and adhesion with double-sided tape or the like may be adopted.
  • the smoke detection unit 93 has a sensor 931 , an intake section 932 and an exhaust section 933 .
  • Sensor 931 detects smoke in the air.
  • the sensor 931 includes, for example, a light-emitting portion, a light-receiving portion, and a determination portion. Light emitted from the light-emitting portion and reflected by particles in the air is received by the light-receiving portion.
  • This is a photoelectric smoke sensor that determines the presence or absence of smoke.
  • the sensor 931 is arranged within a housing space formed within the housing of the smoke detection unit 93 .
  • the intake part 932 is a member that is connected to the intake pipe 7 and forms an air flow path from the smoke monitoring target space S1 toward the housing space of the sensor 931 .
  • the exhaust part 933 is a member that is connected to the exhaust pipe 8 and forms an air flow path from the accommodation space of the sensor 931 to the exhaust destination space S2.
  • the power supply unit 94 supplies power to components of the smoke detection device 9 that require power, including the smoke detection unit 93 .
  • the data processing unit 95 performs processing using the data generated by the smoke detection unit 93.
  • the processing performed by the data processing unit 95 includes, for example, data storage, data transmission to an external device, determination of the presence or absence of smoke based on the data, and notification of a warning or the like according to the determination result of the presence or absence of smoke.
  • control of the display unit 92 and the like can be mentioned, it is not limited to these.
  • the housing 91 includes, for example, a power transmission cable for supplying power from the power supply unit 94 to the smoke detection unit 93 and the like, and a data processing unit.
  • a communication cable or the like for data communication between the unit 95 and the smoke detection unit 93 or the like is accommodated, but these components are omitted in FIG.
  • the housing 91 has a piping hole H1 that allows the intake pipe 7 to pass therethrough while the smoke detection unit 93 is held at a predetermined position of the housing 91. , and a piping hole H2 which is a hole through which the exhaust pipe 8 can pass.
  • the smoke detection device 9 When smoke occurs in the space S1 to be monitored, the smoke detection device 9 having the above configuration detects particles of smoke in the air that are guided by the intake pipe 7 and arrive at the smoke detection device 9. For example, the display unit 92 issues a warning of smoke generation, or transmits a warning message to a terminal device or the like used by the administrator. Note that the method by which the smoke detection device 9 issues a warning or the like is not limited to these methods. may be provided with a warning light, and the warning may be issued by lighting the warning light or the like.
  • the smoke detection device 9 configured as described above has the intake pipe 7 located above the smoke detection device 9 and the exhaust pipe 8 located below the smoke detection device 9. However, if the positions of the intake pipe 7 and the exhaust pipe 8 are reversed, they cannot be used as they are.
  • FIG. 14 shows the state where the intake pipe 7 is located below the installation position of the smoke detection device 9 and the exhaust pipe 8 is located above the installation position of the smoke detection device 9. is installed in an arrangement direction that is upside down from the arrangement direction shown in FIG.
  • the information displayed on the display unit 92 is upside down. Further, for example, by providing the display unit 92 with a function of displaying information rotated 180 degrees, the information displayed on the display unit 92 can be prevented from being upside down as shown in FIG. 14(C). Even so, the position of the user interface is located below the smoke detection device 9, which may reduce the operability. Further, when the manufacturer's name (for example, "XYZ" shown in FIG. 14) is printed on the lid 911 of the housing 91, the information formed on the lid 911 may be upside down. is inevitable.
  • the manufacturer's name for example, "XYZ" shown in FIG. 14
  • a smoke detection unit 93 having the same configuration as the smoke detection unit 93 shown in FIG. 13 can be attached to the housing 91 in the arrangement direction shown in FIG. It is conceivable that In this case, it is necessary to separately prepare a housing 91 in which the positions of the piping hole H1 and the piping hole H2 are different from those of the housing 91 shown in FIG.
  • the present invention provides a smoke detection device that can be used without major parts replacement even if the positional relationship between the connected intake pipe and exhaust pipe is different.
  • the present invention provides a sensor for detecting smoke in the air, and an intake section connected to an intake pipe forming an air flow path from a space to be monitored to a space containing the sensor.
  • a smoke detection unit having an exhaust part connected to an exhaust pipe forming an air flow path from the accommodation space of the sensor to a space of an exhaust destination; a housing that can be selectively held and accommodated in one of the arrangement directions, the housing passing through the intake part or the intake pipe while holding the smoke detection unit in the first arrangement direction.
  • a second piping hole that allows the exhaust section or the exhaust pipe to pass through while the smoke detection unit is held in the first arrangement direction; and the smoke detection.
  • a smoke detection device which has an exhaust portion or a fourth pipe hole through which the exhaust pipe can pass.
  • the same smoke detection can be performed without major component replacement.
  • the device can be used.
  • the figure which showed typically the structure of the smoke detection apparatus which concerns on a modification The figure which showed typically the structure of the smoke detection apparatus which concerns on a modification.
  • FIG. 1 is a diagram schematically showing the configuration of the smoke detection device 1. As shown in FIG. FIG. 1(A) shows the appearance of the smoke detection device 1, and FIG. 1(B) shows a state where the lid 111 constituting the front portion of the housing 11 of the smoke detection device 1 is removed. 1(C) is a top view of the smoke detection device 1, and FIG. 1(D) is a bottom view of the smoke detection device 1. As shown in FIG. 1(A) shows the appearance of the smoke detection device 1, and FIG. 1(B) shows a state where the lid 111 constituting the front portion of the housing 11 of the smoke detection device 1 is removed. 1(C) is a top view of the smoke detection device 1, and FIG. 1(D) is a bottom view of the smoke detection device 1. As shown in FIG.
  • the smoke detection device 1 includes a display unit 12 having the same configuration as the display unit 92 included in the smoke detection device 9, a smoke detection unit 13 having the same configuration as the smoke detection unit 93 included in the smoke detection device 9, and a power supply unit included in the smoke detection device 9.
  • the power supply unit 14 having the same configuration as 94 and the data processing unit 15 having the same configuration as the data processing unit 95 provided in the smoke detection device 9 are provided.
  • the smoke detection unit 13 has a sensor 131 having the same configuration as the sensor 931 of the smoke detection unit 93, an intake section 132 having the same configuration as the intake section 932 of the smoke detection unit 93, and an exhaust section 933 having the same configuration as the smoke detection unit 93. has an exhaust portion 133 of .
  • the smoke detection device 1 includes the housing 11 having the piping holes H3 and H4 in addition to the piping holes H1 and H2 of the housing 91 of the smoke detection device 9 .
  • the piping holes H3 and H4 are not used. Therefore, the smoke detection device 1 includes two caps 16 as members for closing these unused piping holes. Note that the cap 16 is omitted in FIGS. 1(C) and 1(D).
  • FIG. 2 shows the smoke detection device 1 in a situation where the intake pipe 7 is positioned below the installation position of the smoke detection device 1 and the exhaust pipe 8 is positioned above the installation position of the smoke detection device 1. It is a diagram. 2A shows the appearance of the smoke detection device 1, and FIG. 2B shows a state where the lid 111 of the housing 11 is removed.
  • the smoke detection device 1 shown in FIG. 2 Compared to the smoke detection device 1 shown in FIG. 1, the smoke detection device 1 shown in FIG. That is, in the smoke detection device 1 shown in FIG. 1, the smoke detection unit 13 is held in the housing 11 in the arrangement direction in which the intake section 132 is on the upper side and the exhaust section 133 is on the lower side. On the other hand, in the smoke detection device 1 shown in FIG. 2, the smoke detection unit 13 is held in the housing 11 in the arrangement direction such that the intake section 132 is on the bottom side and the exhaust section 133 is on the top side.
  • the arrangement direction of the smoke detection unit 13 shown in FIG. 2 is the arrangement direction obtained by rotating the smoke detection unit 13 shown in FIG. 1 clockwise (or counterclockwise) by 180 degrees.
  • the housing 11 has a shape, a screw hole position, etc., so that the smoke detection unit 13 can be selectively held and accommodated in either the arrangement direction shown in FIG. 1 or the arrangement direction shown in FIG. is configured.
  • the housing 11 holds the smoke detection unit 13 by screwing, but the method for holding the smoke detection unit 13 by the housing 11 is not limited to screwing.
  • any method such as fitting, hooking with hooks, connection with hook-and-loop fasteners, and adhesion with double-sided tape or the like may be adopted.
  • the smoke detection unit 13 is arranged in a different direction, in the smoke detection device 1 shown in FIG. , and the exhaust pipe 8 is connected to the exhaust portion 133 while passing through the piping hole H4 instead of the piping hole H2.
  • the cap 16 is attached to the housing 11 so as to close the piping holes H1 and H2 instead of closing the piping holes H3 and H4.
  • the worker who installs the smoke detection device 1 removes the lid 111 of the housing 11 and attaches the smoke detection device 1 to the position where it should be installed. After changing the arrangement direction of the smoke detection unit 13 if necessary according to the relationship, the intake pipe 7 and the exhaust pipe 8 are connected to the smoke detection unit 13 . Then, after attaching the cap 16 to the piping hole that is not used, the lid 111 is attached to the housing 11 . Note that the order of these operations may be changed as appropriate.
  • the smoke detection device 1 described above can be used without changing parts even if the vertical positions of the intake pipe 7 and the exhaust pipe 8 are different.
  • FIG. 3 shows an example in which one of the intake pipe 7 and the exhaust pipe 8 is positioned on the right side of the smoke detection device 1 and the other of the intake pipe 7 and the exhaust pipe 8 is positioned above or below the smoke detection device 1. showing.
  • the intake section 132 and the exhaust section 133 are arranged on adjacent sides of the housing of the smoke detection unit 13 .
  • FIG. 3A shows the smoke detection device 1 installed under the condition that the intake pipe 7 is positioned above the smoke detection device 1 and the exhaust pipe 8 is positioned on the right side of the smoke detection device 1. there is On the other hand, FIG.
  • FIG. 3B shows the smoke detection device 1 installed under the condition that the intake pipe 7 is positioned on the right side of the smoke detection device 1 and the exhaust pipe 8 is positioned below the smoke detection device 1. ing.
  • the arrangement direction of the smoke detection unit 13 shown in FIG. 3(B) is the arrangement direction obtained by rotating the smoke detection unit 13 shown in FIG. 3(A) clockwise by 90 degrees.
  • FIG. 4 shows an example in which both the intake pipe 7 and the exhaust pipe 8 are positioned above or below the smoke detection device 1 .
  • the intake section 132 and the exhaust section 133 are arranged side by side on the same side of the housing of the smoke detection unit 13 .
  • FIG. 4A shows the smoke detection device 1 installed under the condition that the intake pipe 7 and the exhaust pipe 8 are positioned above the smoke detection device 1 .
  • FIG. 4B shows the smoke detection device 1 installed under the condition that the intake pipe 7 and the exhaust pipe 8 are positioned below the smoke detection device 1 .
  • the arrangement direction of the smoke detection unit 13 shown in FIG. 4B is the arrangement direction in which the smoke detection unit 13 shown in FIG. 4A is rotated clockwise (or counterclockwise) by 180 degrees. .
  • the two orientations of the smoke detection unit 13 selected according to the positions of the intake pipe 7 and the exhaust pipe 8 are the smoke detection unit visible in FIG. 1(B) or FIG. They are in a rotational relationship around an axis perpendicular to the 13 plane. Alternatively or additionally, two orientations of the smoke detection unit 13 are visible in FIG. 1B or FIG. When the surface of the smoke detection unit 13 is the front side, the front side and the back side may be reversed.
  • FIG. 5 is a diagram exemplifying the smoke detection device 1 configured so that the housing 11 can hold the smoke detection unit 13 in two arrangement directions in which the front side and the back side are reversed.
  • the smoke detection unit 13 shown in FIG. 5(B) is attached to the housing 11 in an arrangement direction in which the smoke detection unit 13 shown in FIG. 5(A) is rotated 180 degrees around the horizontal axis.
  • the piping hole H1, the piping hole H2, the piping hole H3, and the piping hole H4 of the housing 11 are different holes, but these two holes may be the same hole. .
  • FIG. 6 shows a smoke detection unit 13 having an intake section 132 and an exhaust section 133 on each of the adjacent sides of the housing, similar to the smoke detection device 1 illustrated in FIG. 1 illustrates a smoke detection device 1 with a housing 11 that can be rotated and held in different orientations. However, the position of the intake section 132 of the smoke detection unit 13 shown in FIG. 6 is different from the position of the intake section 132 of the smoke detection unit 13 shown in FIG.
  • the housing 11 shown in FIG. 6 has a piping hole H1 on the upper side surface through which the intake pipe 7 can pass when the smoke detection unit 13 is held in the arrangement direction shown in FIG.
  • the right side surface has a piping hole H2 through which the exhaust pipe 8 can pass when the smoke detection unit 13 is held in the arrangement direction shown in 6(A).
  • the housing 11 shown in FIG. 6 has a piping hole H4 on the lower side surface through which the exhaust pipe 8 can pass when the smoke detection unit 13 is held in the arrangement direction shown in FIG. 6B.
  • the piping hole H2 also serves as the piping hole H3 through which the intake pipe 7 can pass when the smoke detection unit 13 is held in the arrangement direction shown in FIG. 6B. That is, the piping hole H2 and the piping hole H3 of the housing 11 illustrated in FIG. 6 are the same hole.
  • FIGS. 7 and 8 show, on paper, a smoke detection unit 13 having an intake section 132 and an exhaust section 133 on each side of the housing facing each other, similar to the smoke detection device 1 illustrated in FIGS. It illustrates a smoke detection device 1 comprising a housing 11 that can be held in different orientations rotated 180 degrees about a vertical axis.
  • the position of the intake section 132 of the smoke detection unit 13 shown in FIG. 7 is different from the position of the intake section 132 of the smoke detection unit 13 shown in FIGS.
  • the position of the exhaust section 133 of the smoke detection unit 13 shown in FIG. 8 is different from the position of the exhaust section 133 of the smoke detection unit 13 shown in FIGS.
  • the intake section 132 and the exhaust section 133 have a point-symmetrical positional relationship with the center of the main body of the smoke detection unit 13 as the center of symmetry. .
  • the intake portion 132 and the exhaust portion 133 are arranged at different positions in the left-right direction, whereas in the smoke detection device 1 illustrated in FIG. The difference is that 132 and exhaust section 133 are arranged at the same position in the horizontal direction, that is, at the central position in the horizontal direction.
  • the housing 11 shown in FIG. 7 or 8 has a piping hole through which the intake pipe 7 can pass when the smoke detection unit 13 is held in the arrangement direction shown in FIG. 7(A) or FIG. 8(A).
  • H1 is provided on the upper side
  • a piping hole H2 is provided on the lower side so that the exhaust pipe 8 can pass through when the smoke detection unit 13 is held in the arrangement direction shown in FIG. 7(A) or FIG. 8(A).
  • the piping hole H1 also serves as a piping hole H4 through which the exhaust pipe 8 can pass when the smoke detection unit 13 is held in the arrangement direction shown in FIG. 7(B) or FIG. 8(B).
  • the piping hole H2 also serves as the piping hole H3 through which the intake pipe 7 can pass when the smoke detection unit 13 is held in the orientation shown in FIG. 7(B) or FIG. 8(B). That is, the piping hole H1 and the piping hole H4 of the housing 11 illustrated in FIGS. 7 and 8 are the same hole, and the piping hole H2 and the piping hole H3 are the same hole.
  • FIG. 9 shows a smoke detection unit 13 having an intake section 132 and an exhaust section 133 on each of the adjacent sides of the housing, similar to the smoke detection device 1 illustrated in FIG. 1 illustrates a smoke detection device 1 with a housing 11 that can be rotated and held in different orientations. However, the housing 11 shown in FIG. 9 can hold the smoke detection unit 13 in a different arrangement direction in which the front and back surfaces of the smoke detection unit 13 are reversed. That is, the side (back side) of the smoke detection unit 13 that is not visible in FIG. 9(A) is the side (front side) of the smoke detection unit 13 that is visible in FIG. 9(B).
  • the housing 11 shown in FIG. 9 has a piping hole H1 on the upper side surface through which the intake pipe 7 can pass when the smoke detection unit 13 is held in the arrangement direction shown in FIG.
  • the right side surface has a piping hole H2 through which the exhaust pipe 8 can pass when the smoke detection unit 13 is held in the arrangement direction shown in 9(A).
  • the housing 11 shown in FIG. 9 has a piping hole H3 on the lower side surface through which the intake pipe 7 can pass when the smoke detection unit 13 is held in the arrangement direction shown in FIG. 9B.
  • the piping hole H2 also serves as a piping hole H4 through which the exhaust pipe 8 can pass when the smoke detection unit 13 is held in the arrangement direction shown in FIG. 9B. That is, the piping hole H2 and the piping hole H4 of the housing 11 illustrated in FIG. 9 are the same hole.
  • the piping hole H1 and the piping hole H3 are used as holes through which the intake pipe 7 can pass.
  • the piping hole H1 and the piping hole H3 may be used as holes through which the intake portion 132 can pass.
  • the piping hole H2 and the piping hole H4 are used as holes through which the exhaust pipe 8 can pass.
  • the piping hole H2 and the piping hole H4 may be used as holes through which the exhaust part 133 can pass.
  • FIG. 10 is a diagram illustrating the smoke detection device 1 according to this modification.
  • the intake portion 132 shown in FIG. 10 is longer than the intake portion 132 shown in FIGS. 1 and 2, and passes through the piping hole H1 or the piping hole H3 when the smoke detection unit 13 is attached to the housing 11. and protrudes to the outside of the housing 11 .
  • the exhaust portion 133 shown in FIG. 10 is longer than the exhaust portion 133 shown in FIG. 1 and FIG. , and protrudes to the outside of the housing 11 .
  • the power supply unit 94 and the smoke detection unit 13 may be connected with different power transmission cables depending on the arrangement direction in which the smoke detection unit 13 is held in the housing 11 .
  • FIG. 11 is a diagram illustrating the smoke detection device 1 according to this modification.
  • the smoke detection device 1 shown in FIG. 11 includes either a power transmission cable 17 detachable to each of the power supply unit 14 and the smoke detection unit 13, or a power transmission cable 18 detachable to each of the power supply unit 14 and the smoke detection unit 13. One is selectively provided.
  • the power transmission cable 17 is a power transmission cable that connects the power supply unit 14 and the smoke detection unit 13 when the smoke detection unit 13 is held in the housing 11 in the arrangement direction shown in FIG. 11(A).
  • the power transmission cable 18 is a power transmission cable that connects the power supply unit 14 and the smoke detection unit 13 when the smoke detection unit 13 is held by the housing 11 in the arrangement direction shown in FIG. 11(B). In the example of FIG. 11 , power transmission cable 18 is longer than power transmission cable 17 .
  • the data processing unit 15 and the smoke detection unit 13 may be connected with different communication cables depending on the arrangement direction in which the smoke detection unit 13 is held in the housing 11 .
  • FIG. 12 is a diagram illustrating the smoke detection device 1 according to this modification.
  • the communication cable 19 is a communication cable that connects the data processing unit 15 and the smoke detection unit 13 when the smoke detection unit 13 is held in the housing 11 in the arrangement direction shown in FIG. 12(A).
  • the communication cable 10 is a communication cable that connects the data processing unit 15 and the smoke detection unit 13 when the smoke detection unit 13 is held in the housing 11 in the arrangement direction shown in FIG. 12(B). In the example of FIG. 12, communication cable 10 is longer than communication cable 19 .
  • the power transmission cable and the communication cable included in the smoke detection device 1 may be integrated as a composite cable such as a flat flexible cable.
  • the power transmission cable 17 according to Modification 5 and the communication cable 19 according to Modification 6 are configured as one flat flexible cable
  • the power transmission cable 18 according to Modification 5 and the communication cable 10 according to Modification 6 are configured as one flat. It may be configured as a flexible cable.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

La présente invention, selon un mode de réalisation, concerne un détecteur de fumée (1) comprenant un boîtier (11) et une unité de détection de fumée (13) logée dans le boîtier (11). L'unité de détection de fumée (13) a un capteur (131) qui détecte la fumée dans l'air, une section d'admission (132) reliée à un tuyau d'admission (7), et une section d'échappement (133) reliée à un tuyau d'échappement (8). L'unité de détection de fumée (13) est maintenue soit dans le boîtier (11) dans une première direction d'agencement dans laquelle la section d'admission (132) est sur le côté supérieur soit dans une seconde direction d'agencement dans laquelle la section d'admission (132) est sur le côté inférieur, en fonction des positions du tuyau d'admission (7) et du tuyau d'échappement (8). Le boîtier (11) a un trou de tuyauterie (H1) à travers lequel passe le tuyau d'admission (7) et un trou de tuyauterie (H2) à travers lequel passe le tuyau d'échappement (8) lorsque l'unité de détection de fumée (13) est maintenue dans la première direction d'agencement. Le boîtier (11) a également un trou de tuyauterie (H3) à travers lequel passe le tuyau d'admission (7) et un trou de tuyauterie (H4) à travers lequel passe le tuyau d'échappement (8) lorsque l'unité de détection de fumée (13) est maintenue dans la seconde direction d'agencement.
PCT/JP2023/004421 2022-02-14 2023-02-09 Détecteur de fumée WO2023153480A1 (fr)

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JP2022-020828 2022-02-14
JP2022020828 2022-02-14

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WO2023153480A1 true WO2023153480A1 (fr) 2023-08-17

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004078807A (ja) * 2002-08-22 2004-03-11 Hochiki Corp サンプリング管式煙検知器
JP2008108140A (ja) * 2006-10-26 2008-05-08 Nittan Co Ltd 煙感知装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004078807A (ja) * 2002-08-22 2004-03-11 Hochiki Corp サンプリング管式煙検知器
JP2008108140A (ja) * 2006-10-26 2008-05-08 Nittan Co Ltd 煙感知装置

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