WO2020148845A1

WO2020148845A1 - Alarm device

Info

Publication number: WO2020148845A1
Application number: PCT/JP2019/001193
Authority: WO
Inventors: 学土肥; 朋彦島津; 佳祐鷲頭
Original assignee: ホーチキ株式会社
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2020-07-23

Abstract

The purpose of the present invention is to improve the design of an alarm device.　Provided is a sensor 100 that has an attachment surface 11 that is attached to a ceiling 900 which is an installation target, the sensor 100 comprising: a body portion 31 that accommodates an accommodation target of the sensor 100; a light-transmissive part 32 that covers at least a portion of the body portion 31 from the opposite side to the attachment surface 11; a detection space 4 for detecting smoke which is a detection target contained in gas and which is accommodated as the accommodation target of the body portion 31, the light-transmissive part 32 being a guide member that guides the gas outside the body portion 31 to the detection space 4 of the body portion 31; and an insect screen 6 for preventing insects outside the body portion 31 from entering the detection space 4, the light-transmissive part 32 being a fixing member that fixes the insect screen 6 to the body portion 31.　

Description

Alarm device

The present invention relates to an alarm device.

Conventionally, a fire detector including a chamber into which smoke flows and a housing that houses the chamber has been known (for example, see Patent Document 1). The fire detector is attached to, for example, a ceiling, and detects a smoke by detecting smoke that has flowed into the chamber.

JP, 2011-248547, A

However, in the conventional fire detector, the function of accommodating at least all the various parts of the fire detector (for example, the chamber) inside the casing and the smoke outside the casing are contained in the chamber. Since it was necessary to have the function of guiding, for example, as a result of designing the housing in consideration of the accommodation capacity of parts and the inflow characteristics of smoke, the thickness of the housing (that is, the fire detector is attached The thickness of the housing in the vertical direction perpendicular to the existing ceiling) was relatively thick. Therefore, attaching the fire detector may impair the aesthetics of the area where the fire detector is attached.

The present invention has been made in view of the above problems, and an object thereof is to improve the designability of an alarm device.

In order to solve the above-mentioned problems and to achieve the object, an alarm device according to claim 1 is an alarm device having a mounting surface to be mounted on an object to be installed, and a housing for housing the components of the alarm device. And a translucent means covering at least a part of the accommodating means from the side opposite to the mounting surface side.

The alarm device according to claim 2 is the alarm device according to claim 1, wherein the alarm device is detection means for detecting a detection target contained in a gas, and is housed in the housing means as the constituent element. The detecting means is provided, and the translucent means is a guide member for guiding the gas outside the accommodating means to the detecting means.

The alarm device according to claim 3 is the alarm device according to claim 2, further comprising insect repellent means for preventing insects outside the accommodating means from entering the detecting means. The light means is a fixing member that fixes the insect repellent means to the housing means.

Further, the alarm device according to claim 4 is the alarm device according to any one of claims 1 to 3, further comprising a light emitting means for emitting light, wherein the translucent means emits light by the light emitting means. It is a diffusion member that diffuses the generated light.

The alarm device according to claim 5 is the alarm device according to any one of claims 1 to 4, further comprising: a measuring unit that measures a physical quantity around the alarm device, and the translucent unit is , A supporting member for supporting the measuring means.

The alarm device according to claim 6 is the alarm device according to any one of claims 1 to 5, wherein the alarm device is a sensor or an alarm device that senses smoke, heat, or carbon monoxide. Is.

According to the alarm device of claim 1, by including a light-transmitting means that covers at least a part of the housing means from the side opposite to the mounting surface side, for example, a light-transmitting means for a user who visually recognizes the alarm device. Since it is possible to give an impression that at least the thickness of the alarm device is thinner than the actual thickness of the alarm device by using the appearance of, it is possible to give a thin and smart impression to the alarm device. The design of the device can be improved.

Further, according to the alarm device of the second aspect, since the translucent means is the guiding member for guiding the gas, for example, it is possible to promote the inflow of the gas to the detecting means, and therefore the appropriate timing. It is possible to quickly give a warning (for example, a warning regarding a fire occurrence). Particularly, for example, since the guide member itself is translucent, the visibility of the guide member itself can be simplified, and a simple and smart impression can be given to the alarm device.

Further, according to the alarm device of the third aspect, the translucent means is a fixing member for fixing the insect repellent means, so that, for example, a dedicated part for fixing the insect repellent means (for example, the insect repellent means is locked). Since it is not necessary to provide a locking tool or the like), the number of parts of the alarm device can be reduced and the manufacturing cost of the alarm device can be reduced.

Further, according to the alarm device of the fourth aspect, the translucent means is a diffusing member for diffusing the light emitted by the light emitting means. For example, the light emitted by the light emitting means is confirmed from all directions. Therefore, the visibility of the light emitting means with respect to the light can be improved. In particular, for example, when the light emitting means is configured to emit light when the alarm device determines that a fire has occurred, the light of the light emitting means is surely made visible to the user, and The fire can be reliably notified.

Further, according to the alarm device of the fifth aspect, since the translucent means is the support member for supporting the measuring means, for example, a dedicated part for supporting the measuring means (for example, the measuring means is locked and supported). Since it is not necessary to provide a locking support member or the like), the number of parts of the alarm device can be reduced and the manufacturing cost of the alarm device can be reduced.

Further, according to the alarm device of claim 6, the alarm device is a sensor or an alarm that senses smoke, heat, or carbon monoxide, and thus is transparent to a user who visually recognizes the sensor or the alarm. Since the appearance of the light means can be used to give an impression that at least the thickness of the sensor or alarm is thinner than the actual thickness of the sensor or alarm, the sensor or alarm can be made thin. A smart impression can be given, and the design of the sensor or alarm can be improved.

It is a perspective view of the sensor concerning this Embodiment. It is a bottom view of a sensor. It is a side view of a sensor. FIG. 3 is a sectional view taken along the line AA of FIG. 2. It is the figure which illustrated the airflow in FIG. It is sectional drawing of the sensor of a modification.

An embodiment of an alarm device according to the present invention will be described in detail below with reference to the drawings. The present invention is not limited to the embodiments.

[Basic Concept of Embodiment]
First, the basic concept of the embodiment will be described. The embodiments generally relate to alarm devices.

Here, the "alarm device" is a device that issues an alarm, and specifically has an attachment surface that is attached to an object to be installed, and includes, for example, a housing means and a translucent means. Therefore, as an example, it is a concept including a sensor or an optical alarm. The "sensor" is a device that determines an abnormality in the monitoring area, and specifically, a device that determines an abnormality such as a fire or a gas leak by detecting a detection target in the monitoring area. The “sensor” is a concept including, for example, a smoke sensor, a heat sensor, a fire sensor, a gas leak sensor, and the like. Further, the "monitoring area" is an area to be monitored by the sensor, and specifically, a space having a certain spread, which is an indoor or outdoor space, for example, It is a concept that includes a space such as a corridor, stairs, or a room in a building. Further, the "light alarm device" is a concept that emits light to give an alarm, and includes, for example, a device that emits flash light.

Also, the "object to be installed" is an object to which the alarm device is attached, and is a concept including, for example, a ceiling or a wall. Further, the “mounting surface” is a surface provided on the sensor, and specifically, is a surface that is mounted on the installation target object while facing the installation target object. Further, the “detection target” is a target of detection by the sensor, and specifically relates to an abnormality in the monitored area, and includes, for example, smoke, heat, flames, and toxic gases such as carbon monoxide. It is a concept including etc.

Also, the "accommodating means" is for accommodating the constituent elements of the alarm device, for example, forming at least a part of the external appearance of the alarm device. The “component” is an element that constitutes the alarm device, and is, for example, a concept including at least detecting means. Further, the “detection means” is a means for detecting the detection target contained in the gas, and is contained in the storage means. For example, the concept including the detection space into which the detection target flows. Is.

Further, the "translucent means" is a member that covers at least a part of the accommodating means from the side opposite to the mounting surface side, and specifically, is a member that exhibits various functions for the alarm device. Yes, for example, a guiding member that guides the gas outside the housing means to the detecting means, a fixing member that fixes the insect repellent means to the housing means, a diffusing member that diffuses the light emitted by the light emitting means, and an alarm Member, a discriminating member that discriminates a user (for example, a security guard, a firefighter, etc.) from the notification of the sensor, or a supporting member that supports the measuring means. The "insect repellent means" is for preventing insects outside the accommodating means from entering the detecting means, and is a concept including, for example, an insect repellent net. Further, the "measuring means" is for measuring the physical quantity around the alarm device, specifically, for measuring the physical quantity of something related to the abnormality in the monitoring area, for example, heat quantity or temperature. Is a concept that includes a thermistor and the like.

In the embodiment described below, when the “alarm device” is a fire detector and the “detection target” is smoke (specifically, smoke particles), the “translucent means” is the guiding member. The case of functioning as a discriminating member and a diffusing member will be described, and a case where the “light transmitting means” functions as a fixing member and a case where the “light transmitting means” functions as a supporting member will be described later.

(Constitution)
First, the configuration of the sensor according to the present embodiment will be described. 1 is a perspective view of a sensor according to the present embodiment, FIG. 2 is a bottom view of the sensor, FIG. 3 is a side view of the sensor, and FIG. 4 is A of FIG. -A sectional view taken along arrow A. For convenience of description, the diffusion unit 323 of FIG. 4 is omitted in FIGS. 1 and 2. Further, for convenience of description, the rib 33 of FIG. 1 is omitted in FIGS. 3 and 4, and a power supply line for receiving power supply from a disaster prevention receiver (not shown) and the disaster prevention reception. A communication line for transmitting a fire signal, which is a signal for notifying the machine of a fire, is omitted (the same applies to FIGS. 5 and 6 described later). In the following description, the XYZ directions shown in FIGS. 2 to 4 are directions orthogonal to each other. Specifically, the Z direction is the vertical direction, and the X and Y directions are the vertical directions. As a horizontal direction orthogonal to the Z direction, for example, the Z direction is referred to as a height direction or a direction substantially orthogonal to the mounting surface 11, and the +Z direction is an upper side (a plane or the mounting surface 11 of the housing 3). Side), and the −Z direction is referred to as the lower side (bottom surface or the side opposite to the mounting surface 11 of the housing 3) (the same applies to FIGS. 5 and 6 described later). Further, the following terms relating to “XYZ directions” are expedient expressions for explaining the relative positional relationship (or direction) of each component in the illustrated sensor 100. With reference to the center position of the detection space 4 in FIG. 4, the direction away from the detection space 4 along the XY plane is referred to as “outside or end side”, and the direction approaching the detection space 4 is “inside or center side”. Will be described below.

The sensor 100 shown in each of these figures is an alarm device and is a device that determines a fire by detecting smoke in the monitoring area. Specifically, as shown in FIG. 4, it is an installation target. It is used by being mounted on the ceiling 900 of the monitoring area, and includes, for example, a mounting base 1, a back plate 2, a housing 3, a detection space 4, a support 5, a insect screen 6, and a circuit 7.

(Structure-Mounting base)
The mounting base 1 is a mounting means for mounting the back plate 2 and the housing 3 on the ceiling 900. Although the specific type and configuration of the mounting base 1 are arbitrary, for example, the mounting base 1 is provided with a mounting surface 11 that is a surface facing the ceiling 900, and between the back plate 2 and the ceiling 900, It is fixed to the back plate 2 and the ceiling 900 by a known fixing means (for example, a screw or a fitting structure).

(Structure-Back plate)
The back plate 2 is a guiding means for guiding a gas containing smoke (hereinafter, simply referred to as “gas”), and forms, for example, the external outflow side flow path F1 with the housing 3. Here, the “outflow channel on the outside side” F1 is a guiding means for guiding the gas, and specifically, is a channel for causing the gas in the detection space 4 to flow out of the sensor 100. The specific type and configuration of the back plate 2 are arbitrary, but, for example, the back plate 2 has a disk shape having the same diameter as the housing 3, and a known fixing to the housing 3 with the spacer 21 sandwiched therebetween. It is fixed by means (for example, a screw or an adhesive), and is also fixed to the mounting base 1 by a known fixing means (for example, a screw or a fitting structure).

(Structure-Case)
The housing 3 forms the outer shape of the sensor 100. Although the specific type and configuration of the housing 3 are arbitrary, for example, the housing 3 includes the main body portion 31, the light transmitting portion 32, and the rib 33 of FIG. 1.

(Structure-Housing-Main body)
4, the detection space 4, the support portion 5, the insect net 6, and the circuit portion 7 (hereinafter, the "detection space 4, the support portion 5, the insect net 6, and the circuit portion 7" correspond to the constituent elements. However, these are also referred to as "accommodation targets"), and are, for example, disk-shaped as a whole and white on the outer side. A cylindrical portion provided on the upper side (+Z direction) in the Z direction) and having the same diameter as the back plate 2, and the diameter decreases from the cylindrical portion toward the lower side (−Z direction). And a tapered portion that is formed. Further, the main body portion 31 includes a housing side inflow opening 311, a housing side outflow opening 312, and an inclined surface 313. The housing-side inflow opening 311 is a guiding unit that guides gas, and specifically, is for allowing gas outside the sensor 100 to flow into the detection space 4, and for example, the lower side of the main body 31 ( It is provided at a position shifted outward from the center in the direction parallel to the XY plane on the (-Z direction) surface. The housing-side outflow opening 312 is a guiding unit that guides the gas in the detection space 4, and is for allowing the gas in the detection space 4 to flow out of the sensor 100. For example, the upper side (-Z Direction) is provided at a position displaced from the center to the outside in the direction parallel to the XY plane. The inclined surface 313 is a guiding means for guiding the gas, and specifically, is for allowing the gas outside the sensor 100 to flow into the detection space 4, and is provided, for example, in the tapered portion of the main body 31. It is what has been.

(Structure-Housing-Translucent part)
The translucent part 32 is a translucent means and is a member that covers at least a part of the main body part 31 from the side opposite to the mounting surface 11 side, and is, for example, the above-mentioned guide member, discriminating member and diffusing member. It works. Although the specific type and configuration of the translucent portion 32 are arbitrary, for example, the diameter is smaller than that of the cylindrical portion of the main body 31 and the lower portion (−Z direction) of the tapered portion of the main body 31 is used. It has a disk shape with a diameter slightly larger than the end portion, and is entirely transparent so that the user who visually recognizes the sensor 100 does not feel the thickness of the light transmitting portion 32 itself. In addition, it is fixed to the main body 31 via the rib 33 of FIG. Further, the translucent portion 32 includes, for example, a facing surface 321, a light guide portion 322, and a diffusion portion 323. It should be noted that the diffusion portion 323 of FIG. 4 only shows the position where it is provided for convenience of explanation, and the detailed shape and the like of the diffusion portion 323 is omitted (see FIG. 6 described later). The same shall apply).

(Structure-Housing-Translucent part-opposite surface)
The facing surface 321 is for causing the light transmitting portion 32 to function as a guiding member, and is specifically a guiding means for guiding a gas. More specifically, it is for allowing gas outside the sensor 100 to flow into the detection space 4, and is, for example, the surface of the translucent portion 32 facing the main body portion 31, and the main body portion 31. And an inflow-side flow path F2 formed between the two, and is raised toward the upper side (+Z direction) from the end side of the light transmitting portion 32 toward the center side in the direction parallel to the XY plane. Is. More specifically, the protruding shape of the facing surface 321 is described in such a manner that the gas is guided toward the housing-side inflow opening 311 of the main body 31 and the gas flow velocity increases as the gas approaches the housing-side inflow opening 311. As the position of the facing surface 321 facing the housing-side inflow opening 311 approaches, the distance between the facing surface 321 and the main body 31 in the vertical direction (Z direction) becomes shorter. Here, the "inflow side flow path" F2 is a guiding means for guiding the gas, and specifically, is a flow path for flowing the gas outside the sensor 100 into the detection space 4.

(Structure-Housing-Translucent part-Light guide part and diffusion part)
The light guide section 322 and the diffusing section 323 are for causing the light transmitting section 32 to function as a determination member and a diffusing member. is there.

First, although the specific type and configuration of the light guide section 322 is arbitrary, for example, it is a light guide and is configured by using a light guide formed using an optical fiber or the like. Specifically, the light guide section 322 extends from the vicinity of the center of the light transmitting section 32 toward the upper side (+Z direction) in the direction parallel to the XY plane, and is below the main body section 31 (−Z direction). It extends through the surface of (1) to the alarm side light emitting section 74 inside the main body section 31. As described above, since the light guide section 322 extends to the alarm side light emitting section 74, the light from the alarm side light emitting section 74 is reliably guided to the light transmitting section 32.

Further, although the specific type and configuration of the diffusing section 323 are arbitrary, for example, the diffusing section 323 is a light diffusing groove and is configured by using a light diffusing groove for refracting or reflecting light. Specifically, the diffusing section 323 is provided near the center of the light transmitting section 32 in the direction parallel to the XY plane on the lower (−Z direction) surface of the light transmitting section 32. As described above, since the diffusion section 323 is provided, at least a part of the light guided through the light guide section 322 is reflected by the diffusion section 323, so that the entire interior of the translucent section 32. Further, the light is diffused into a wide range outside the light transmitting portion 32 by refracting at least part of the light in the diffusion portion 323.

(Structure-Case-Rib)
The rib 33 of FIG. 1 is a reinforcing means that reinforces the strength of the entire housing 3, a fixing means that fixes the light transmitting portion 32 to the main body portion 31, and a guiding means that guides gas. Specifically, the guiding means is for causing the gas outside the sensor 100 to flow into the detection space 4. The rib 33 has a flat plate shape radially provided with the housing-side inflow opening 311 as a reference, and a plurality of ribs 33 are provided. The rib 33 is fixed to the main body 31 by a known fixing means (for example, an adhesive or the like), and the translucent portion 32 is attached. The translucent portion 32 is attached to the rib 33 when it is configured to be detachably attached using a predetermined engaging means (for example, a combination of a fitting hole and a fitting protrusion), or There is a case where it is configured to be non-detachably attached by using a known fixing means (for example, an adhesive or the like) together with the predetermined fitting means or in addition to the predetermined fitting means. Here, for example, it is assumed that it is configured to be detachably attached. The rib 33 is entirely transparent for the same reason as the transparent portion 32 is transparent.

(Structure-Detection space)
The detection space 4 in FIG. 4 is a detection means and is a space into which gas flows. Although the specific type and configuration of the detection space 4 are arbitrary, for example, the detection space 4 is provided at a position displaced from the center of the main body 31 to the outside in the direction along the mounting surface 11 (direction parallel to the XY plane). The space is a space surrounded by a part of the main body 31, an element support portion 52 described later, and a circuit board 71 described later. As described above, since the detection space 4 is provided at the position displaced from the center of the main body 31 to the outside, for example, the mounting space for the components inside the main body 31 can be gathered in one place. It becomes possible to secure a relatively large mounting space.

(Structure-Supporting part)
The support portion 5 is a support means that supports the circuit portion 7. Although the specific type and configuration of the support 5 are arbitrary, for example, the support 5 includes a substrate support 51 and an element support 52.

(Structure-Support-Substrate support)
The board supporting portion 51 is a supporting means for supporting a circuit board 71, which will be described later, with respect to the housing 3, and is a guiding means for guiding a gas. Specifically, the guiding means is, specifically, an internal outflow side flow path. F3 is formed. Here, the “internal outflow side flow path” F3 is a guiding means for guiding the gas, and specifically, is a flow path for causing the gas in the detection space 4 to flow out of the sensor 100. The substrate support portion 51 has, for example, a cylindrical shape having an inner diameter larger than that of a substrate-side outflow opening 711 described later, and is on the upper side (+Z direction) of the main body 31 and a circuit described later. Between the board 71 and the upper surface (+Z direction) of the main body 31 and the circuit board 71, they are fixed by a known fixing means (for example, a screw or an adhesive).

(Structure-Support-Element support)
The element support portion 52 is a support means that supports a detection-side light emitting portion 72 and a detection-side light receiving portion 73, which will be described later, with respect to the housing 3, is also a partitioning means that partitions the detection space 4, and is also a gas It is a guiding means for guiding. The element support portion 52 has, for example, a cylindrical shape having an inner diameter that is larger than the housing-side inflow opening 311 and the substrate-side outflow opening 711 described later. 73 is attached, and between the lower surface (-Z direction) of the main body 31 and the circuit board 71 described later, the lower surface (-Z direction) of the main body 31 and the circuit. It is fixed to the substrate 71 by a known fixing means (for example, a screw or an adhesive).

(Structure-insect net)
The insect repellent net 6 is an insect repellent means for preventing insects from entering the detection space 4. Although the specific type and configuration of the insect screen 6 are arbitrary, for example, while allowing gas to flow from the outside to the inside of the detection space 4 through the small holes of the insect net 6, the detection space 4 is allowed. Insects are prevented from entering 4 and, as an example, they are fitted and fixed inside the housing-side inflow opening 311. For details of fixing the insect net 6, the insect net 6 not provided inside the housing-side inflow opening 311 has a diameter slightly larger than that of the housing-side inflow opening 311. The insect net 6 is slightly deformed so that the insect net 6 is fitted into the housing side inflow opening 311 from the lower side (-Z direction) to the upper side (+Z). Further, when the insect net 6 is slightly deformed and provided inside the casing side inflow opening 311 from the lower side (−Z direction) to the upper side (+Z), the insect repellent net 6 exceeds the casing side inflow opening 311. A stopper 611 as a stationary means is provided in order to prevent the stopper 611 from reaching the inside of the main body portion 31 and is configured to be stationary by the stopper 611.

(Structure-Circuit part)
The circuit unit 7 is a circuit unit that forms an electric circuit for determining a fire by detecting smoke that is a detection target. Although the specific type and configuration of the circuit section 7 are arbitrary, for example, the circuit section 71 includes a circuit board 71, a detection side light emitting section 72, a detection side light receiving section 73, and an alarm side light emitting section 74.

(Structure-Circuit part-Circuit board)
The circuit board 71 is a mounting means on which each element of the sensor 100 is mounted. For example, the circuit board 71 is spread out along the XY plane as a whole, and is supported and fixed by the support portion 5. Further, the circuit board 71 is provided with a board-side outflow opening 711. The substrate-side outflow opening 711 is a guiding means for guiding a gas, and specifically, is for allowing the gas in the detection space 4 to flow out of the sensor 100 via the internal outflow-side flow path F3. For example, the diameter is smaller than the inner diameters of the board supporting portion 51 and the element supporting portion 52, and is provided at a position displaced outward from the center of the circuit board 71 in the direction parallel to the XY plane.

(Structure-Circuit Unit-Detection side light emitting unit)
The detection-side light emitting unit 72 is a light emission detection unit for detecting smoke that has flowed into the detection space 4, and specifically, emits detection light, which is light for detecting smoke, toward the detection space 4. It is a means. Although the specific type and configuration of the detection side light emitting section 72 are arbitrary, for example, a light emitting diode or the like is provided.

(Structure-Circuit section-Detection side light receiving section)
The detection-side light receiving unit 73 is a light reception detecting unit for detecting smoke that has flowed into the detection space 4, and specifically, is a unit that receives scattered light generated in the detection space 4. Although the specific type and configuration of the detection-side light receiving unit 73 are arbitrary, for example, a photodiode or the like is provided.

(Structure-Circuit section-Alarm side light emitting section)
The alarm-side light emitting unit 74 is a light emitting unit that emits light, and specifically, is a unit that emits light to warn a predetermined event. Here, the “predetermined event” is an event relating to the sensor 100, and includes, for example, determining that a fire has occurred or detecting that some function of the sensor 100 is defective. Although it is a concept, in the following description, it is assumed that the “predetermined event” is the determination of the occurrence of fire. Although the specific type and configuration of the alarm side light emitting unit 74 are arbitrary, for example, the alarm side light emitting unit 74 is provided with a light emitting diode or the like.

(Appearance of sensor)
Next, the visibility of the thus configured sensor 100 will be described. As described above, since the entire surface of the main body 31 of FIG. 4 is white and the entire light transmitting portion 32 is transparent, the light transmitting portion 32 is visible to the user who visually recognizes the sensor 100. Since it is possible to feel only the thickness of the main body portion 31 as the overall thickness of the sensor 100 without feeling the thickness of the sensor 100, it is possible to give a thin and smart impression to the overall appearance of the sensor 100.

(Induction of gas)
Next, the induction of gas in the sensor 100 configured as described above will be described. FIG. 5: is the figure which illustrated the airflow in FIG. The arrow Af1 in FIG. 5 exemplifies the direction of the air flow based on the result of a predetermined experiment, simulation, or the like regarding the flow direction of the gas containing smoke (that is, the direction of the air flow). The sensor 100 allows gas from any direction outside the housing 3 to flow into the detection space 4 from the lower side (−Z direction) in the height direction (Z direction) and then from the upper side (+Z direction). Although it can be guided so as to flow out, here, for example, a case of guiding along the arrow Af1 in FIG. 5 will be described.

When a fire occurs in the monitoring area, a gas (gas including smoke) outside the sensor 100 in FIG. 5 is moved along the ceiling 900 (or, as shown by an arrow Af1) by the heat flow based on the fire (or, After moving toward the sensor 100 (parallel to the ceiling 900), it is guided to the detection space 4 through the inflow side flow passage F2, the housing side inflow opening 311, and the small holes of the insect net 6. In detail, the gas is guided from the main body 31 side to the transparent portion 32 side along the inclined surface 313 of the housing 3, and then along the facing surface 321 of the transparent portion 32 and the rib 33 of FIG. , Is guided to the detection space 4 side in FIG. Thereafter, the gas guided to the detection space 4 is sensed via the substrate-side outflow opening 711, the internal outflow-side flow path F3, the housing-side outflow opening 312, and the external outflow-side flow path F1 as shown by an arrow Af1. It is guided to the outside of the container 100.

(Judgment of fire)
Next, the determination of a fire in the sensor 100 configured as described above will be described. A controller (not shown) (for example, a CPU) of the circuit board 71 of the sensor 100 determines a fire in the same manner as a known method. That is, the control unit detects the smoke concentration using the detection-side light emitting unit 72 and the detection-side light receiving unit 73, and then determines the fire based on the detected smoke concentration. Regarding the smoke density detection here, ambient light may enter the inside of the detection space 4 due to the transparent portion 32 being transparent. Therefore, consider the influence of ambient light. It is also possible to use a known detection method for detecting the smoke concentration. After that, when it is determined that a fire has occurred, the control unit (not shown) causes the alarm side light emitting unit 74 of FIG. Then, the emitted light reaches the diffusion unit 323 via the light guide unit 322, and is scattered, reflected, or refracted by the diffusion unit 323. After that, the scattered, reflected or refracted light is diffused into the entire inside of the light transmitting portion 32 and is emitted from the entire light transmitting portion 32 in all directions, and the refracted light is diffused. The light is diffused from the portion 323 to the outside and emitted in all directions. Therefore, the user can visually recognize the light from the alarm side light emitting unit 74 in the sensor 100 from any position in the monitoring area. That is, the user can determine that the sensor 100 has issued the alarm.

(Effects of the embodiment)
As described above, according to the present embodiment, by providing the translucent portion 32 that covers at least a part of the main body portion 31 from the side opposite to the mounting surface 11 side, for example, for a user who visually recognizes the sensor 100. Since the appearance of the light transmitting portion 32 can be used to give an impression that at least the thickness of the sensor 100 is thinner than the actual thickness of the sensor 100, a thin and smart impression of the sensor 100 can be obtained. The sensor 100 can be provided and the design of the sensor 100 can be improved.

Further, since the translucent portion 32 is a guiding member that guides gas, for example, it is possible to promote the flow of gas into the detection space 4, so that a warning can be promptly issued at an appropriate timing (for example, regarding a fire occurrence). Alarm). In particular, for example, since the guide member itself is translucent, the visibility of the guide member itself can be simplified, and the sensor 100 can be given a simple and smart impression.

Further, since the light transmitting section 32 is a diffusing member that diffuses the light emitted by the alarm side light emitting section 74, for example, the light emitted by the alarm side light emitting section 74 can be confirmed from all directions. It is possible to improve the visibility of the light of the alarm side light emitting section 74. In particular, for example, when the light emitting unit 74 on the alarm side is configured to emit light when the sensor 100 determines that a fire has occurred, the light from the light emitting unit 74 on the alarm side can be reliably viewed by the user. Thus, the user can be surely notified of the fire.

[Modification of Embodiment]
Although the embodiment of the present invention has been described above, the specific configuration and means of the present invention may be arbitrarily modified and improved within the scope of the technical idea of each invention described in the claims. You can Hereinafter, such a modified example will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-mentioned contents, and may differ depending on the implementation environment and details of the configuration of the invention. May be solved, or only some of the effects described above may be achieved.

(About distribution and integration)
Further, the above-described configuration is functionally conceptual, and does not necessarily have to be physically configured as illustrated. That is, the specific form of distribution and integration of the respective parts is not limited to that shown in the figure, and all or part of them can be functionally or physically distributed or integrated in arbitrary units.

(About detection space (1))
Further, in the above-described embodiment, the case where the detection space 4 of FIG. 4 directly communicates with the outside of the main body 31 through the housing-side inlet opening 311 has been described, but the present invention is not limited to this. For example, the detection space 4 is provided at a position on the left side of FIG. 4 in a position that does not overlap the housing-side inflow opening 311 in the vertical direction (Z direction), and the housing-side inflow opening 311 and the detection space 4 are smoked. It may be connected by an inflow channel. In this case, the gas that has flowed into the detection space 4 at the position on the left side in FIG. 4 from the outside of the main body 31 via the housing-side inflow opening 311 and the smoke inflow passage may flow out of the detection space 4. The positions of other elements (for example, the substrate-side outflow opening 711, the housing-side outflow opening 312, and the like) are also changed so as to be possible. With such a configuration, it is possible to reduce the amount of ambient light entering the detection space 4 due to the transparent portion 32 being transparent.

(About detection space (2))
Further, the detection space 4 may be provided at the center of the main body 31 in the direction parallel to the XY plane.

(About light guide)
Further, in the above-described embodiment, the case where the light from the alarm side light emitting section 74 is guided using the light guide section 322 of FIG. 4 has been described, but the present invention is not limited to this. For example, by providing an optical fiber inside the rib 33 in FIG. 1 or forming the rib 33 itself as a light guide, the rib 33 can be configured to guide light, and then the alarm side light emitting unit 74 The light may be guided to the light transmitting portion 32 using the rib 33. With such a configuration, the light guide portion 322 of FIG. 4 can be omitted, so that the gas can smoothly flow in the inflow side flow passage F2.

(About diffuser)
Further, in the above-described embodiment, the case where the diffusing portion 323 is provided on the lower surface (−Z direction) of the light transmitting portion 32 has been described, but the present invention is not limited to this. For example, the diffusion part 323 may be provided at a position closer to the center of the light transmitting part 32 in the vertical direction (Z direction), or may be provided at a position closer to the upper side (+Z direction) of the light transmitting part 32. Good.

(About translucent part (1))
Further, in the above-described embodiment, the case where the entire transparent portion 32 is transparent has been described, but the present invention is not limited to this. The translucent part 32 may be formed in any color as long as at least a part thereof has translucency. In particular, the transparent portion 32 may be configured as follows in order to make the thickness of the sensor 100 appear thin. Specifically, the entire transparent portion 32 may be formed in a slightly turbid color such as milky white, or the entire surface of the facing surface 321 of the transparent portion 32 is milky white, and The transparent portion 32 other than the facing surface 321 may be transparent.

(About translucent part (2))
Further, in the above embodiment, the case where the entire outer surface of the main body 31 of FIG. 4 is configured to be white has been described, but the present invention is not limited to this. For example, the main body 31 may also be configured to be transparent (for example, transparent). In this case, since the “accommodation target” accommodated in the main body 31 is visually exposed, a part or all of the visually exposed portion of the accommodation target is configured to be white. You may.

(About translucent part (3))
Further, in the above embodiment, the case where the light transmitting portion 32 functions as the guiding member and the diffusing member has been described, but the present invention is not limited to this, and the light transmitting portion 32 may function as a “fixing member”. For example, the transparent portion 32 of FIG. 4 is configured to be attachable to and detachable from the main body portion 31 via the rib 33 of FIG. 1, and the upper side of the transparent portion 32 when attached to the main body portion 31. The vertex in the (+Z direction) (specifically, the portion of the facing surface 321 that faces the housing-side inflow opening 311) may be modified so as to contact the insect screen 6 inside the housing-side inflow opening 311. .. The translucent part 32 thus modified is referred to as a "remodeled translucent part". In the case of providing the insect screen 6 in such a modification, first, the insect screen 6 is provided inside the housing-side inflow opening 311 in a state where the "remodeled translucent portion" is removed from the main body 31, and then, The insect repellent net 6 may be fixed by attaching the “remodeled translucent portion” to the main body 31 and bringing the “reformed translucent portion” into contact with the insect repellent net 6 from the lower side (−Z side). In this case, the insect screen 6 is fixed inside the housing-side inflow opening 311 by being sandwiched by the apex of the “modified translucent portion” and the stopper 611 in the vertical direction (Z direction). In such a configuration, the modified translucent portion is a fixing member that fixes the insect screen 6, so that, for example, a dedicated part for fixing the insect screen 6 (for example, for locking the insect screen 6). Since it is not necessary to provide a locking device or the like), the number of parts of the sensor 100 can be reduced, and the manufacturing cost of the sensor 100 can be reduced. In this case, since it is not necessary to fit the insect net 6 into the housing-side inlet opening 311, the insect net 6 may be slightly smaller in diameter than the housing-side inlet opening 311.

(About translucent part (4))
Further, in the above-described embodiment, the case where the light transmitting portion 32 functions as the guiding member and the diffusing member has been described, but the present invention is not limited to this, and the light transmitting portion 32 may function as a “supporting member”. FIG. 6 is a cross-sectional view of a modified sensor. The sensor 100A of FIG. 6 is obtained by providing the temperature measuring unit 81 with respect to the sensor 100 of FIG. 4 and changing the light transmitting unit 32 to a light transmitting unit 32A. In the following description, regarding the configuration of the sensor 100A of FIG. 6, only the configuration different from the configuration of the sensor 100 of FIG. 4 is specifically described, and the components other than the configuration are similar to the configuration of the sensor 100. And Regarding the configuration of the light transmitting portion 32A in FIG. 6, only the configuration different from the configuration of the light transmitting portion 32 in FIG. 4 will be specifically noted, and those not specifically mentioned will be the same as the configuration of the light transmitting portion 32.

The temperature measuring unit 81 in FIG. 6 is a measuring unit, and specifically, a unit for measuring temperature. Although the specific type and configuration of the temperature measuring unit 81 are arbitrary, for example, the temperature measuring unit 81 includes a thermistor or the like and is electrically connected to the circuit board 71 via a lead wire.

The translucent part 32A is a translucent means and is a member that covers at least a part of the main body part 31 from the side opposite to the mounting surface 11 side, and also functions as a support member, for example. Although the specific type and configuration of the light transmitting section 32A is arbitrary, for example, the temperature detecting section 81 is supported on the lower (−Z) surface in the vertical direction (Z direction) of the light transmitting section 32A to perform the temperature measurement. The part 81 is fixed by a known fixing means (for example, an adhesive or the like). The light transmitting portion 32A also includes, for example, a temperature detecting portion cover 324A. The temperature measuring unit cover 324A is a cover unit that covers the temperature measuring unit 81, and is provided, for example, on the lower side (−Z) in the vertical direction (Z direction) than the temperature measuring unit 81, and the cover supporting unit 324B. It is fixed to the translucent portion 32A via.

The sensor 100A configured as described above uses the measurement result of the temperature measuring unit 81 to determine a fire by a known method, but the temperature measuring unit 81 is below the light transmitting unit 32A (-Z direction). Since the temperature in the monitoring area can be directly measured, the rapid temperature change at the time of fire occurrence can be quickly grasped and the fire occurrence can be quickly judged. Further, since it is covered with the temperature measuring unit cover 324A, it is possible to prevent the user from touching the temperature measuring unit 81 at the time of mounting the sensor 100A, so that the temperature measuring unit 81 can be protected.

When configured in this manner, the translucent portion 32A is a support member that supports the temperature measuring portion 81, so that, for example, a dedicated component for supporting the temperature measuring portion 81 (for example, for locking and supporting the temperature measuring portion 81). Since it is not necessary to provide the locking support etc.), the number of parts of the sensor 100A can be reduced, and the manufacturing cost of the sensor 100A can be reduced.

The colors of the temperature measuring unit 81, the temperature measuring unit cover 324A, and the cover supporting unit 324B are arbitrary, but for example, in order to make the thickness of the sensor 100A look thin, the temperature measuring unit 81 (including the lead wire). , The temperature measuring unit cover 324A and the cover supporting unit 324B are all white, or the temperature measuring unit 81 (including the lead wire) is white, and the temperature measuring unit cover 324A and the cover supporting unit 324B are It may be configured to be transparent (for example, transparent).

(About insect screen)
In addition, in FIG. 4 of the above-described embodiment, an insect screen may be provided on the housing side outflow opening 312 side of the main body 31.

(About back plate and mounting base)
Further, the back plate 2 of the above-described embodiment shown in FIG. 4 may be configured to be directly attached to the ceiling 900, and the attachment base 1 may be omitted. In this case, the upper surface (+Z direction) of the back plate 2 corresponds to the “mounting surface”. Further, the mounting base 1 of FIG. 4 of the above-described embodiment may not be omitted, the back plate 2 may be omitted, and the mounting base 1 may be fixed to the housing 3 with the spacer 21 interposed therebetween.

(About air flow)
Further, in the above-described embodiment, a case has been described in which the gas is caused to flow into the detection space 4 from the housing side inflow opening 311 side and the gas is caused to flow out from the housing side outflow opening 312 side along the arrow Af1 of FIG. 5. It is not limited to this. For example, the gas may be allowed to flow into the detection space 4 from the housing side inflow opening 311 side, and then the gas may be allowed to flow out from the housing side inflow opening 311 side. In this case, after the gas inflow and outflow characteristics are grasped by experiments or simulations, the configuration of the sensor 100 may be arbitrarily changed (for example, the size, the number, or the position of the housing side inflow openings 311 may be changed. Alternatively, the size or position of the detection space 4 may be changed), and the gas may be allowed to flow in and out from the housing side inflow opening 311 side as described above.

(About air flow generation means)
Further, the sensor 100 of FIG. 4 of the above-described embodiment may be provided with an airflow generation unit (airflow generation means) that generates an airflow for guiding the gas along the arrow Af1 of FIG. 5, for example. Specifically, inside or outside the detection space 4, a micropump using a known piezoelectric element, a known heating element that generates heat, a known heat absorbing element that absorbs heat, or the like may be provided as an airflow generating unit. .. Then, the airflow generating unit may be controlled by a control unit (for example, a CPU) (not shown) of the circuit board 71 based on a predetermined program.

(About mounting the sensor)
Further, in the above embodiment, the case where the sensor 100 of FIG. 4 is attached to the ceiling 900 of the monitoring area and used is described, but the present invention is not limited to this. For example, the sensor 100 may be mounted on the wall of the monitoring area and used.

(About application of known configuration)
Further, at least a part of each characteristic (for example, the characteristic of the light transmitting portion 32) of the sensor 100 of FIG. 4 of the above-described embodiment is provided with a known sensor (for example, a labyrinth or the like for shielding the detection space from light). (Equipped sensor, etc.).

(About application to detectors)
Further, the characteristics of the sensor 100 of FIG. 4 of the above-described embodiment may be applied to a known scattered light type sensor or a known dimming type sensor.

(About integrated structure)
Further, any part of the sensor 100 of the above-described embodiment shown in FIG. 4 may be integrally configured. For example, the substrate support portion 51, the element support portion 52, and the spacer 21 may be integrally configured.

(About heat welding)
Further, any component of the sensor 100 of the above-described embodiment shown in FIG. 4 may be heat-welded and fixed. For example, the element support portion 52 may be fixed by heat welding to the lower surface (−Z direction) of the main body 31 and the circuit board 71.

(About board side outflow opening)
Further, with respect to the circuit board 71 of FIG. 4, a board-side outflow cutout may be provided together with the board-side outflow opening 711 or instead of the board-side outflow opening 711. Here, the "substrate-side outflow notch" is a guiding means for guiding the gas, and specifically, the gas in the detection space 4 flows out of the sensor 100 through the internal outflow-side channel F3. It is for making it. Although the shape of the board-side outflow notch is arbitrary and not shown, for example, in the direction parallel to the XY plane of FIG. 4, from the edge side of the circuit board 71 toward the center side, a V-shape or a U shape is formed. It may be formed by cutting out in a letter shape or the like.

(About features)
Further, the features of the above-described embodiment and the features of the modified examples may be arbitrarily combined or omitted. For example, in the light transmitting unit 32 of FIG. 4, the diffusion unit 323 may be omitted, or the light transmitting unit 32 may be modified so as to only diffuse light without guiding smoke, or the light transmitting unit of FIG. The part 32A may be configured so as to also function as a “fixing member”.

(Appendix)
The alarm device according to appendix 1 is an alarm device having a mounting surface to be mounted on an object to be installed, and includes accommodating means for accommodating the constituent elements of the alarm device and at least the accommodating means from the side opposite to the mounting surface side. A translucent means covering a part thereof.

The alarm device according to appendix 2 is the alarm device according to appendix 1, which is a detection unit for detecting a detection target contained in a gas, and is included in the housing unit as the constituent element. , And the translucent means is a guiding member for guiding the gas outside the accommodating means to the detecting means.

The alarm device according to appendix 3 is the alarm device according to appendix 2, further comprising insect repellent means for preventing insects outside the accommodating means from entering the detecting means, and the translucent means includes the accommodating means. It is a fixing member for fixing the insect repellent means to the means.

The alarm device according to appendix 4 is the alarm device according to any one of appendices 1 to 3, further comprising a light emitting unit that emits light, and the translucent unit diffuses the light emitted by the light emitting unit. It is a member.

The alarm device according to appendix 5 is the alarm device according to any one of appendices 1 to 4, further comprising a measuring unit that measures a physical quantity around the alarm unit, and the translucent unit supports the measuring unit. It is a supporting member.

The alarm device of appendix 6 is the alarm device according to any one of appendices 1 to 5, wherein the alarm device is a sensor or an alarm that senses smoke, heat, or carbon monoxide.

(Effect of additional notes)
According to the alarm device described in appendix 1, by including the translucent means that covers at least a part of the accommodating means from the side opposite to the mounting surface side, for example, of the translucent means for the user who visually recognizes the alarm device. By using the appearance, it is possible to give an impression that at least the thickness of the alarm device is thinner than the actual thickness of the alarm device. Therefore, it is possible to give a thin and smart impression to the alarm device. The designability of can be improved.

According to the alarm device described in appendix 2, since the translucent means is the guiding member that guides the gas, for example, it is possible to promote the inflow of the gas to the detection means, so that it is possible to promptly and appropriately perform the gas. An alarm (for example, an alarm regarding a fire occurrence) can be issued. Particularly, for example, since the guide member itself is translucent, the visibility of the guide member itself can be simplified, and a simple and smart impression can be given to the alarm device.

According to the alarm device described in appendix 3, the light-transmitting means is the fixing member for fixing the insect-repellent means, so that, for example, a dedicated component for fixing the insect-repellent means (for example, for locking the insect-repellent means). Since it is not necessary to provide a locking device or the like), the number of parts of the alarm device can be reduced and the manufacturing cost of the alarm device can be reduced.

According to the alarm device described in appendix 4, the translucent means is a diffusing member that diffuses the light emitted by the light emitting means, so that the light emitted by the light emitting means can be confirmed from all directions. Therefore, the visibility of the light of the light emitting means can be improved. In particular, for example, when the light emitting means is configured to emit light when the alarm device determines that a fire has occurred, the light of the light emitting means is surely made visible to the user, and The fire can be reliably notified.

According to the alarm device described in appendix 5, the translucent means is a support member for supporting the measuring means, so that, for example, a dedicated part for supporting the measuring means (for example, for locking and supporting the measuring means). Since it is not necessary to provide a locking support, etc., the number of parts of the alarm device can be reduced and the manufacturing cost of the alarm device can be reduced.

According to the alarm device described in appendix 6, the alarm device is a sensor or an alarm that senses smoke, heat, or carbon monoxide, and thus the alarm device is a transparent means for a user who visually recognizes the sensor or the alarm. The appearance can be used to give an impression that at least the thickness of the sensor or alarm is thinner than the actual thickness of the sensor or alarm, so that the sensor or alarm has a thin and smart impression. And the design of the sensor or alarm can be improved.

DESCRIPTION OF SYMBOLS 1 Mounting base 2 Back plate 3 Housing 4 Detection space 5 Supporting part 6 Insect repellent net 7 Circuit part 11 Mounting surface 21 Spacer 31 Main body part 32 Light transmitting part 32A Light transmitting part 33 Rib 51 Board supporting part 52 Element supporting part 71 Circuit board 72 Detection side light emitting part 73 Detection side light receiving part 74 Alarm side light emitting part 81 Temperature detecting part 100 Sensor 100A Sensor 311 Case side inlet opening 312 Case side outlet opening 313 Inclined surface 321 Opposing surface 324A Temperature detecting part cover 322 Light guiding part 323 Diffusion 324B Cover support 611 Stopper 711 Substrate side outflow opening 900 Ceiling F1 External outflow side flow path F2 Inflow side flow path F3 Internal outflow side flow path Af1 Arrow

Claims

An alarm device having a mounting surface to be mounted on an object to be installed,
A housing means for housing the components of the alarm device;
Translucent means covering at least a part of the accommodating means from the side opposite to the mounting surface side,
Alarm device.
A detection means for detecting a detection target contained in gas, comprising the detection means stored as the constituent element in the storage means,
The translucent means is a guide member for guiding the gas outside the housing means to the detection means,
The alarm device according to claim 1.
Insect repellent means for preventing insects outside the accommodating means from entering the detection means,
The translucent means is a fixing member for fixing the insect repellent means to the accommodating means,
The alarm device according to claim 2.
A light emitting means for emitting light,
The translucent means is a diffusing member that diffuses the light emitted by the light emitting means,
The alarm device according to any one of claims 1 to 3.
Measuring means for measuring a physical quantity around the alarm device,
The translucent means is a support member that supports the measuring means,
The alarm device according to any one of claims 1 to 4.
The alarm device is a sensor or alarm that senses smoke, heat, or carbon monoxide,
The alarm device according to any one of claims 1 to 5.