JP6896538B2 - Alarm device - Google Patents

Description

The present invention relates to an alarm device.

Conventionally, a fire detector including a chamber into which smoke flows and a housing for accommodating the chamber has been known (see, for example, Patent Document 1). This fire detector was mounted on the ceiling, for example, and determined the fire by detecting the smoke flowing into the chamber.

Japanese Unexamined Patent Publication No. 2011-248547

However, in the conventional fire detector, at least the function of accommodating all the various parts of the fire detector (for example, the chamber) inside the housing and the smoke outside the housing are stored in the chamber. Since it was necessary to have a function to guide, for example, as a result of designing the housing in consideration of the accommodation of parts and the inflow characteristics of smoke, the thickness of the housing (that is, the fire detector was attached). The thickness of the housing in the vertical direction perpendicular to the ceiling) was relatively thick. Therefore, by attaching the fire detector, there is a possibility that the aesthetic appearance of the area where the fire detector is attached may be spoiled.

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

In order to solve the above-mentioned problems and achieve the object, the alarm device according to claim 1 is an alarm device having a mounting surface to be attached to an object to be installed, and accommodates the components of the alarm device. The means, the translucent means covering at least a part of the accommodating means from the side opposite to the mounting surface side, and the means for preventing insects outside the accommodating means from invading the inside of the accommodating means. The insect-proofing means and a measuring means for measuring a physical quantity around the alarm device are provided, the light-transmitting means is a fixing member for fixing the insect-proofing means to the accommodating means, and the light-transmitting means is a fixing member. It is a support member that supports the measuring means.

Further, the alarm device according to claim 2 is a detection means for detecting a detection target contained in a gas in the alarm device according to claim 1, and is accommodated in the accommodation means as the component. The light transmitting means is a guiding member that guides a gas outside the accommodating means to the detecting means.

Further, the alarm device according to claim 3 includes a light emitting means for emitting light in the alarm device according to claim 1 or 2 , and the light transmitting means diffuses the light emitted by the light emitting means. It is a diffusion member.

The alarm device according to claim 4 is the alarm device according to any one of claims 1 to 3 , wherein the alarm device is a detector or alarm device that senses smoke, heat, or carbon monoxide. Is.

According to the alarm device according to claim 1, by providing a light-transmitting means that covers at least a part of the accommodating means from the side opposite to the mounting surface side, for example, the light-transmitting means for a user who visually recognizes the alarm device. Since it is possible to give an impression that the alarm device is thinner than the actual thickness of the alarm device at least with respect to the thickness of the alarm device, it is possible to give a thin and smart impression to the alarm device. The design of the device can be improved.
Further, since the light transmitting means is a fixing member for fixing the insect repellent means, for example, a dedicated part for fixing the insect repellent means (for example, a locking tool for locking the insect repellent means) can be provided. Since it is unnecessary, the number of parts of the alarm device can be reduced, and the manufacturing cost of the alarm device can be reduced.
Further, since the light transmitting means is a support member that supports the measuring means, for example, a dedicated component for supporting the measuring means (for example, a locking support for locking and supporting the measuring means) is provided. Is unnecessary, so that 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 according to claim 2, since the light transmitting means is an guiding member for guiding the gas, for example, the inflow of the gas to the detecting means can be promoted, so that the timing is appropriate. It is possible to quickly give an alarm (for example, an alarm regarding the occurrence of a fire). In particular, 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 according to claim 3 , since the light transmitting means is a diffusing member that diffuses 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 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 to the user. It is possible to reliably notify the occurrence of a fire.

Further , according to the alarm device according to claim 4 , the alarm device is a detector or alarm that detects smoke, heat, or carbon monoxide, so that the alarm device is transparent to the user who visually recognizes the detector or alarm. The appearance of the light means can be used to give the 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 is 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 which concerns on this embodiment. It is a bottom view of a sensor. It is a side view of a sensor. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 4 is a diagram illustrating an air flow in FIG. It is sectional drawing of the sensor of the modification.

Hereinafter, embodiments of the alarm device according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

[Basic concept of the embodiment]
First, the basic concept of the embodiment will be described. Embodiments generally relate to alarm devices.

Here, the "alarm device" is a device that gives an alarm, and specifically, has a mounting surface that can be attached to an object to be installed, and includes, for example, an accommodating means and a translucent means. As an example, the concept includes a sensor, an optical alarm, and the like. The "sensor" is a device for determining an abnormality in a monitoring area, and specifically, a device for determining 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 detector, a heat detector, a fire detector, a gas leak detector, and the like. Further, the "monitoring area" is an area to be monitored by a sensor, specifically, a space having a certain extent, an indoor space or an outdoor space, for example. It is a concept that includes spaces such as corridors, stairs, or rooms in buildings. Further, the "optical alarm" is a device that emits light to give an alarm, and is a concept including, for example, a device that emits flash light.

Further, the "installation object" 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, a surface to be attached to the installation object in a state of facing the installation object. Further, the "detection target" is a target to be detected by a sensor, and specifically, is related to an abnormality in the monitoring area, and is, for example, a toxic gas such as smoke, heat, flame, and carbon monoxide. It is a concept including.

Further, the "accommodating means" accommodates the components of the alarm device, and forms, for example, at least a part of the appearance of the alarm device. The "component" is an element that constitutes an alarm device, and is, for example, a concept that includes at least a detection means. Further, the "detection means" is a means for detecting a detection target contained in the gas, which is accommodated in the accommodation means, and is, for example, a concept including a 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 exerts various functions for an alarm device. Yes, for example, a guiding member that guides a gas outside the accommodating means to the detecting means, a fixing member that fixes the insect repellent means to the accommodating means, a diffusing member that diffuses the light emitted by the light emitting means that emits light, and an alarm. This is a concept including a member of the above, a discriminating member that causes a user (for example, a guard, a firefighter, etc.) to discriminate the alarm of a sensor, or a support member that supports a measuring means. The "insect repellent means" is for preventing insects outside the containment means from invading the detection 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 the thing related to the abnormality in the monitoring area, for example, the calorific value or the temperature. As an example, it is a concept including a thermistor and the like.

Then, in the embodiment shown 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 where the "transmissive means" functions as a fixing member and the case where the "transmissive means" functions as a support 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 the 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 cross-sectional view taken along the arrow. For convenience of explanation, the diffusion portion 323 of FIG. 4 is omitted in FIGS. 1 and 2. Further, for convenience of explanation, the rib 33 of FIG. 1 is omitted in FIGS. 3 and 4, and a power supply line for receiving power from a disaster prevention receiver (not shown) and the disaster prevention reception are provided. The communication line for transmitting the fire signal, which is a signal for notifying the machine of the fire, is omitted (the same applies to FIGS. 5 and 6 described later). Further, in the following description, the XYZ directions shown in FIGS. 2 to 4 are 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, for example, the Z direction is referred to as the height direction or the direction substantially orthogonal to the mounting surface 11, and the + Z direction is the upper side (plane or the mounting surface 11 in the housing 3). The side) will be referred to, and the −Z direction will be referred to as the lower side (bottom surface or the opposite side of the mounting surface 11 in the housing 3) (the same applies to FIGS. 5 and 6 described later). Further, the following terms related to the "XYZ directions" are convenient expressions for explaining the relative positional relationship (or direction) of each component in the illustrated sensor 100. As a result, the direction away from the detection space 4 along the XY plane is referred to as "outside or end side" with reference to the center position of the detection space 4 in FIG. 4, and the direction approaching the detection space 4 is referred to as "inside or center side". This will be described below.

The sensor 100 shown in each of these figures is an alarm device, a device for determining a fire by detecting smoke in a monitoring area, and specifically, as shown in FIG. 4, an installation target. It is used by being attached to 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 portion 5, an insect screen 6, and a circuit portion 7.

(Configuration-Mounting base)
The mounting base 1 is a mounting means for mounting the back plate 2 and the housing 3 to the ceiling 900. The specific type and configuration of the mounting base 1 are arbitrary, but for example, the mounting base 1 is provided with a mounting surface 11 which is a surface facing the ceiling 900, and is provided 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 an inducing means for inducing a gas containing smoke (hereinafter, simply “gas”), and for example, forms an external outflow side flow path F1 with the housing 3. Here, the "external outflow side flow path" F1 is a guiding means for inducing the gas, and specifically, is a flow path for causing the gas in the detection space 4 to flow out to the outside of the sensor 100. The specific type and configuration of the back plate 2 is arbitrary, but for example, it has a disk shape having the same diameter as the housing 3, and is known to be fixed to the housing 3 with the spacer 21 interposed therebetween. It is fixed by means (for example, a screw or an adhesive), and is fixed to the mounting base 1 by a known fixing means (for example, a screw or a fitting structure).

(Configuration-Housing)
The housing 3 forms the outer shape of the sensor 100. The specific type and configuration of the housing 3 are arbitrary, but for example, the housing 3 includes a main body portion 31, a translucent portion 32, and a rib 33 of FIG.

(Configuration-Housing-Main body)
In the main body 31 of FIG. 4, the detection space 4, the support 5, the insect net 6, and the circuit 7 (hereinafter, “detection space 4, support 5, insect net 6, and circuit 7” correspond to the components. However, these are accommodation means for accommodating these (also referred to as "accommodation objects"). For example, the entire surface is disk-shaped and the entire outer surface is white. 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 a smaller diameter toward the lower side (-Z direction) from this cylindrical portion. It is formed by a tapered portion. Further, the main body 31 includes an inflow opening 311 on the housing side, an outflow opening 312 on the housing side, and an inclined surface 313. The housing-side inflow opening 311 is a guiding means for inducing gas, and specifically, for allowing gas outside the sensor 100 to flow into the detection space 4, for example, on the lower side of the main body 31 (for example, The surface in the −Z direction) is provided at a position deviated outward from the center in a direction parallel to the XY plane. The housing-side outflow opening 312 is a guiding means for guiding the gas in the detection space 4, and is for causing the gas in the detection space 4 to flow out to the outside of the sensor 100. For example, the upper side (−Z) of the main body 31 The plane (direction) is provided at a position deviated outward from the center in the direction parallel to the XY plane. The inclined surface 313 is a guiding means for inducing gas, specifically, for allowing gas outside the sensor 100 to flow into the detection space 4, and is provided, for example, in a tapered portion of the main body 31. It is what has been done.

(Structure-housing-translucent part)
The light-transmitting portion 32 is a light-transmitting means and is a member that covers at least a part of the main body portion 31 from a side opposite to the mounting surface 11 side. It works. The specific type and configuration of the light transmitting portion 32 are arbitrary, but for example, the diameter is smaller than the cylindrical portion of the main body portion 31 and the lower side (−Z direction) of the tapered portion of the main body portion 31. It has a disk shape with a diameter slightly larger than that of the end, and the entire body is transparent so that the user who visually recognizes the sensor 100 does not feel the thickness of the translucent portion 32 itself. It is also fixed to the main body 31 via the rib 33 of FIG. Further, the light transmitting unit 32 includes, for example, a facing surface 321, a light guide unit 322, and a diffusion unit 323. The diffusion portion 323 in FIG. 4 is only shown at a position where it is provided for convenience of explanation, and the detailed shape and the like of the diffusion portion 323 are not shown (FIG. 6 described later). The same applies to).

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

(Structure-housing-transmissive part-light guide part and diffuser part)
The light guide unit 322 and the diffusing unit 323 are for making the light transmitting unit 32 function as a discriminating member and a diffusing member. Specifically, the light emitting unit 74 on the alarm side, which will be described later, diffuses the light emitted. is there.

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

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

(Structure-housing-rib)
The rib 33 in FIG. 1 is a reinforcing means for reinforcing the strength of the entire housing 3, a fixing means for fixing the light transmitting portion 32 to the main body portion 31, and a guiding means for inducing gas. Specifically, the guiding means is for allowing a gas outside the sensor 100 to flow into the detection space 4. The ribs 33 have a flat plate shape that is radially provided with reference to the inflow opening 311 on the housing side, and a plurality of ribs 33 are provided. Further, the rib 33 is fixed to the main body 31 by a known fixing means (for example, an adhesive or the like), and the light transmitting portion 32 is attached to the rib 33. Regarding the attachment of the translucent portion 32 to the rib 33, if it is configured so that it can be attached and detached by using a predetermined engaging means (for example, a combination of a fitting hole and a fitting protrusion), or It may be configured to be non-detachably attached together with the predetermined fitting means or by using a known fixing means (for example, an adhesive or the like) in addition to the predetermined fitting means. Here, it is assumed that, for example, it is configured to be detachably attached. Further, the rib 33 is entirely transparent for the same reason as the reason why the translucent portion 32 is transparent.

(Configuration-Detection space)
The detection space 4 in FIG. 4 is a detection means and is a space into which a gas flows. The specific type and configuration of the detection space 4 are arbitrary, but for example, the detection space 4 is provided at a position deviated outward from the center of the main body 31 in a direction along the mounting surface 11 (a direction parallel to the XY plane). It is a space surrounded by a part of the main body portion 31, an element support portion 52 described later, and a circuit board 71 described later. By providing the detection space 4 at a position deviated outward from the center of the main body 31 in this way, for example, the mounting space for parts inside the main body 31 can be integrated in one place. , It is possible to secure a relatively large mounting space.

(Structure-Support)
The support portion 5 is a support means for supporting the circuit portion 7. The specific type and configuration of the support portion 5 is arbitrary, but for example, it includes a substrate support portion 51 and an element support portion 52.

(Structure-Support part-Board support part)
The substrate support portion 51 is a support means for supporting the circuit board 71 described later with respect to the housing 3, and is also a guiding means for inducing a gas. Specifically, the guiding means is an internal outflow side flow path. It forms F3. Here, the "internal outflow side flow path" F3 is a guiding means for inducing the gas, and specifically, is a flow path for causing the gas in the detection space 4 to flow out to the outside of the sensor 100. The substrate support portion 51 has, for example, a cylindrical shape having an inner diameter larger than that of the substrate side outflow opening 711 described later, and has an upper surface (+ Z direction) surface of the main body portion 31 and a circuit described later. It is fixed to the upper surface (+ Z direction) surface of the main body 31 and the circuit board 71 by a known fixing means (for example, a screw or an adhesive) between the board 71 and the board 71.

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

(Composition-insect repellent net)
The insect repellent net 6 is an insect repellent means and is a means for preventing insects from entering the detection space 4. The specific type and configuration of the insect repellent net 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 repellent net 6 itself, the detection space 4 is for preventing insects from entering, and as an example, it is fitted and fixed inside the inflow opening 311 on the housing side. Regarding the fixing of the insect repellent net 6, in detail, the insect repellent net 6 in a state where it is not provided inside the housing side inflow opening 311 is configured to have a slightly larger diameter than the housing side inflow opening 311. The insect repellent net 6 is slightly deformed so as to be inserted into the housing side inflow opening 311 from the lower side (−Z direction) toward the upper side (+ Z). Further, when the insect repellent net 6 is slightly deformed and provided inside the housing side inflow opening 311 from the lower side (−Z direction) toward the upper side (+ Z), the insect repellent net 6 exceeds the housing side inflow opening 311. In order to prevent it from reaching the inside of the main body 31, a stopper 611 is provided as a stationary means, and the stopper 611 is configured to be stationary.

(Configuration-Circuit section)
The circuit unit 7 is a circuit means for forming an electric circuit for determining a fire by detecting smoke to be detected. The specific type and configuration of the circuit unit 7 is arbitrary, but includes, for example, a circuit board 71, a detection side light emitting unit 72, a detection side light receiving unit 73, and an alarm side light emitting unit 74.

(Configuration-Circuit section-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 extends 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 an outflow opening 711 on the substrate side. The substrate-side outflow opening 711 is a guiding means for inducing gas, and specifically, is for causing the gas in the detection space 4 to flow out to the outside of the sensor 100 via the internal outflow-side flow path F3. For example, the diameter is smaller than the inner diameter of the substrate support portion 51 and the inner diameter of the element support portion 52, and is provided at a position deviated outward from the center of the circuit board 71 in a direction parallel to the XY plane.

(Configuration-Circuit section-Detection side light emitting section)
The detection side light emitting unit 72 is a light emission detecting means for detecting the smoke flowing into the detection space 4, and specifically, the detection light which is the light for detecting the smoke is emitted toward the detection space 4. It is a means. The specific type and configuration of the detection side light emitting unit 72 is arbitrary, but for example, it includes a light emitting diode or the like.

(Configuration-Circuit section-Detection side light receiving section)
The detection side light receiving unit 73 is a light receiving detection means for detecting the smoke flowing into the detection space 4, and specifically, is a means for receiving the scattered light generated in the detection space 4. The specific type and configuration of the light receiving unit 73 on the detection side is arbitrary, but for example, a photodiode or the like is provided.

(Configuration-Circuit section-Alarm side light emitting section)
The alarm-side light emitting unit 74 is a light emitting means that emits light, and specifically, is a means that emits light to warn a predetermined event. Here, the "predetermined event" is an event related to the sensor 100, and includes, for example, determining the occurrence of a fire or detecting a defect in a part of the functions of the sensor 100. Although it is a concept, here, for example, it will be described below assuming that the "predetermined event" is the determination of the occurrence of a fire. The specific type and configuration of the alarm-side light emitting unit 74 is arbitrary, but for example, it includes a light emitting diode or the like.

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

(Induction of gas)
Next, the induction of the gas in the sensor 100 configured in this way will be described. FIG. 5 is a diagram illustrating an air flow in FIG. The arrow Af1 in FIG. 5 exemplifies the direction of the airflow based on the result of a predetermined experiment or simulation with respect to the direction of the flow of the gas containing smoke (that is, the direction of the airflow). The sensor 100 allows gas from all directions 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). It can be guided to flow out, but here, for example, a case of guiding along the arrow Af1 of FIG. 5 will be described.

When a fire breaks out in the monitoring area, the hot airflow based on the fire causes the gas (gas containing smoke) outside the sensor 100 in FIG. 5 to flow along the ceiling 900 (or as indicated by arrow Af1). After moving toward the sensor 100 (parallel to the ceiling 900), it is guided to the detection space 4 through the inflow side flow path F2, the housing side inflow opening 311 and the small hole of the insect net 6. Specifically, the gas is guided from the main body 31 side to the light transmitting portion 32 side along the inclined surface 313 of the housing 3, and then along the facing surface 321 of the light transmitting portion 32 and the rib 33 of FIG. , Guided to the detection space 4 side of FIG. After that, the gas induced in the detection space 4 is detected through 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 the arrow Af1. It is guided to the outside of the vessel 100.

(Judgment of fire)
Next, the determination of the fire in the sensor 100 configured in this way will be described. A control unit (for example, a CPU or the like) (not shown) 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 detection of the smoke concentration here, since the translucent portion 32 is transparent, ambient light may enter the inside of the detection space 4, so the influence of the ambient light is taken into consideration. It may be carried out by using a known detection method for detecting the concentration of smoke. 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. 4 to emit light by lighting or blinking. 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 to the entire inside of the translucent portion 32 and emitted from the entire transmissive portion 32 in all directions, and the refracted light is diffused. It is diffused to the outside from the unit 323 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 an alarm.

(Effect of 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. By utilizing the appearance of the translucent portion 32, it is possible to give an impression that at least the thickness of the sensor 100 is thinner than the actual thickness of the sensor 100, so that the sensor 100 has a thin and smart impression. It can be given, and the design of the sensor 100 can be improved.

Further, since the light transmitting portion 32 is an guiding member that guides the gas, for example, the inflow of the gas into the detection space 4 can be promoted, so that an alarm (for example, regarding a fire outbreak) can be swiftly performed at an appropriate timing. Alarm) can be given. In particular, for example, since the guiding member itself is translucent, the visibility of the guiding member itself can be simplified, and the sensor 100 can be given a simple and smart impression.

Further, since the light transmitting unit 32 is a diffusion member that diffuses the light emitted by the alarm side light emitting unit 74, for example, the light emitted by the alarm side light emitting unit 74 can be confirmed from all directions. The visibility of the light of the alarm side light emitting unit 74 can be improved. In particular, for example, when the alarm side light emitting unit 74 is configured to emit light when the sensor 100 determines that a fire has occurred, the light of the alarm side light emitting unit 74 is reliably visually recognized by the user. Therefore, it is possible to reliably notify the user of the occurrence of a fire.

[Variation example with respect to the embodiment]
Although the embodiments according to the present invention have 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. Can be done. Hereinafter, such a modification will be described.

(About the problem to be solved and the effect of the invention)
First, the problem to be solved by the invention and the effect of the invention are not limited to the above-mentioned contents, and may differ depending on the implementation environment and the details of the configuration of the invention, and only a part of the above-mentioned problems. Or may produce only some of the effects described above.

(About distribution and integration)
Further, the above-described configuration is a functional concept, and does not necessarily have to be physically configured as shown in the figure. That is, the specific form of dispersion or integration of each part is not limited to the one shown in the drawing, and all or a part thereof can be functionally or physically dispersed or integrated in any unit.

(About the detection space (1))
Further, in the above embodiment, the case where the detection space 4 in FIG. 4 is directly communicated with the outside of the main body 31 through the inflow opening 311 on the housing side 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 the drawing in FIG. 4 and 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 of the drawing in FIG. 4 from the outside of the main body 31 through the housing side inflow opening 311 and the smoke inflow flow path may flow out from the detection space 4. As possible, the positions of other elements (for example, the outflow opening 711 on the substrate side and the outflow opening 312 on the housing side) are also changed. With this configuration, it is possible to reduce the amount of ambient light entering the inside of the detection space 4 due to the transparency of the translucent portion 32.

(About the 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 the light guide)
Further, in the above embodiment, the case where the light from the alarm side light emitting unit 74 is guided by using the light guide unit 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 of FIG. 1 or forming the rib 33 itself as a light guide so that the rib 33 can guide light, the alarm side light emitting unit 74 The light may be configured to be guided to the translucent portion 32 by using the rib 33. With this configuration, the light guide portion 322 of FIG. 4 can be omitted, so that the gas can flow smoothly in the inflow side flow path F2.

(About the diffuser)
Further, in the above embodiment, the case where the diffusion 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 portion 323 may be provided at a position closer to the center of the light transmitting portion 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 portion 32. Good.

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

(About the translucent part (Part 2))
Further, in the above embodiment, the case where the entire outer surface of the main body portion 31 of FIG. 4 is configured in 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 translucent (for example, transparent). In this case, since the "accommodation object" accommodated in the main body 31 is visually exposed, a part or all of the visually exposed portion of the accommodation object is configured to be white. You may.

(About the 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 be configured to function as a “fixing member”. For example, the translucent portion 32 of FIG. 4 is configured to be detachable from the main body 31 via the rib 33 of FIG. 1, and is above the translucent portion 32 when attached to the main body 31. The apex (specifically, the portion of the facing surface 321 facing the housing side inflow opening 311) may be modified so as to abut the insect net 6 inside the housing side inflow opening 311. .. The translucent portion 32 modified in this way is referred to as a "modified translucent portion". In the case of remodeling in this way, when the insect repellent net 6 is provided, first, the insect repellent net 6 is provided inside the inflow opening 311 on the housing side with the "modified translucent portion" removed from the main body portion 31, and then the insect repellent net 6 is provided. The insect screen 6 may be fixed by attaching the "modified translucent portion" to the main body portion 31 and bringing the "modified translucent portion" into contact with the insect net 6 from the lower side (-Z side). In this case, the insect repellent net 6 is sandwiched and fixed by the apex of the "modified translucent portion" and the stopper 611 in the vertical direction (Z direction) inside the inflow opening 311 on the housing side. In this configuration, the modified translucent portion is a fixing member for fixing the insect repellent net 6, so that, for example, a dedicated part for fixing the insect repellent net 6 (for example, for locking the insect repellent net 6) can be locked. Since it is not necessary to provide a locking tool 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 the case of such a configuration, it is not necessary to fit the insect repellent net 6 into the housing side inflow opening 311. Therefore, the insect repellent net 6 may be configured to have a slightly smaller diameter than the housing side inflow opening 311.

(About the translucent part (4))
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 be configured to function as a “supporting member”. FIG. 6 is a cross-sectional view of a modified sensor. The sensor 100A of FIG. 6 is provided with a temperature measuring unit 81 for the sensor 100 of FIG. 4, and the light transmitting unit 32 is changed to the light transmitting unit 32A. In the following description, the configuration of the sensor 100A of FIG. 6 shall be specially described only for those different from the configuration of the sensor 100 of FIG. 4, and those not otherwise specified shall be the same as the configuration of the sensor 100. And. Regarding the configuration of the translucent portion 32A of FIG. 6, only those different from the configuration of the translucent portion 32 of FIG. 4 are specially described, and those not otherwise specified are the same as the configuration of the translucent portion 32.

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

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

In the sensor 100A configured in this way, the fire is determined by a known method using the measurement result of the temperature measuring unit 81, and the temperature measuring unit 81 is on the lower side (−Z direction) of the translucent unit 32A. ), Since the temperature of the monitoring area can be directly measured, it is possible to quickly catch a sudden temperature change at the time of a fire and quickly determine the occurrence of a fire. Further, since it is covered by the temperature measuring unit cover 324A, it is possible to prevent the user from touching the temperature measuring unit 81 when the sensor 100A is attached, so that the temperature measuring unit 81 can be protected.

When configured in this way, since the light transmitting portion 32A is a support member that supports the temperature measuring portion 81, 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 a locking support or the like), 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 portion 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) is used. , The temperature measuring part cover 324A and the cover support part 324B are all white, and the temperature measuring part 81 (including the lead wire) is white, and the temperature measuring part cover 324A and the cover support part 324B are It may be configured to be translucent (for example, transparent).

(About insect net)
Further, in FIG. 4 of the above embodiment, an insect repellent net may be provided on the housing side outflow opening 312 side of the main body 31.

(About the back plate and mounting base)
Further, the back plate 2 of FIG. 4 of the above embodiment 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, instead of omitting the mounting base 1 of FIG. 4 of the above embodiment, the back plate 2 may be omitted, and the mounting base 1 may be fixed to the housing 3 with the spacer 21 sandwiched between them.

(About airflow)
Further, in the above embodiment, the case where the gas flows into the detection space 4 from the housing side inflow opening 311 side and the gas flows out from the housing side outflow opening 312 side along the arrow Af1 in FIG. 5 has been described. Not limited to this. For example, after the gas is allowed to flow into the detection space 4 from the housing side inflow opening 311 side, the gas may be discharged from the housing side inflow opening 311 side. In this case, after grasping the inflow and outflow characteristics of the gas by an experiment or simulation, the configuration of the sensor 100 is arbitrarily changed (for example, the size, number, or position of the inflow opening 311 on the housing side is changed. Alternatively, the size or position of the detection space 4 may be changed) to allow gas to flow in and out from the housing side inflow opening 311 side as described above.

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

(About the installation of 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 has been described, but the present invention is not limited to this. For example, the sensor 100 may be attached to the wall of the monitoring area for use.

(Regarding the application of known configurations)
Further, at least a part of each feature of the sensor 100 of FIG. 4 of the above embodiment (for example, the feature of the translucent portion 32) is covered with a known sensor (for example, a labyrinth or the like for shading the detection space). It may be applied to a sensor provided, etc.).

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

(About integrated configuration)
Further, any component of the sensor 100 of FIG. 4 of the above embodiment may be configured as an integral part. For example, the substrate support portion 51, the element support portion 52, and the spacer 21 may be configured as an integral unit.

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

(About the outflow opening on the substrate side)
Further, the circuit board 71 of FIG. 4 may be provided with a substrate-side outflow notch together with the substrate-side outflow opening 711 or instead of the substrate-side outflow opening 711. Here, the “board-side outflow notch” is a guiding means for inducing the gas, and specifically, the gas in the detection space 4 flows out to the outside of the sensor 100 via the internal outflow-side flow path F3. It is for letting you. The shape of the outflow cutout on the substrate side is arbitrary and is not shown, but for example, it has a V shape or a U shape from the edge side to the center side of the circuit board 71 in the direction parallel to the XY plane of FIG. It may be formed by cutting into a character shape or the like.

(About features)
Further, the features of the above-described embodiment and the features of the modified example may be arbitrarily combined or omitted. For example, in the translucent portion 32 of FIG. 4, the diffusing portion 323 is omitted, or the translucent portion 32 is modified so as to diffuse only light without inducing smoke, or the translucent portion of FIG. 6 is transmitted. The portion 32A may be configured to also function as a “fixing member”.

(Additional note)
The alarm device of Appendix 1 is an alarm device having a mounting surface to be attached to an object to be installed, and is a housing means for accommodating a component of the alarm device and at least the accommodating means from a side opposite to the mounting surface side. It is provided with a translucent means that covers a part thereof.

The alarm device of Appendix 2 is a detection means for detecting a detection target contained in a gas in the alarm device of Appendix 1, and the detection means accommodated as a component in the accommodation means. The translucent means is a guiding member that guides a gas outside the accommodating means to the detecting means.

The alarm device of Appendix 3 includes, in the alarm device of Appendix 2, an insect repellent means for preventing insects outside the accommodating means from invading the detecting means, and the translucent means is the accommodating means. It is a fixing member that fixes the insect repellent means to the means.

The alarm device of Appendix 4 includes a light emitting means for emitting light in the alarm device according to any one of Appendix 1 to 3, and the light transmitting means diffuses the light emitted by the light emitting means. It is a member.

The alarm device of Appendix 5 includes, in the alarm device according to any one of the items 1 to 4, a measuring means for measuring a physical quantity around the alarm device, and the translucent means supports the measuring means. It is a support member to be used.

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

(Effect of appendix)
According to the alarm device described in Appendix 1, for example, by providing a light-transmitting means that covers at least a part of the accommodating means from the side opposite to the mounting surface side, for example, the light-transmitting means for the user who visually recognizes the alarm device. By using the appearance, at least the thickness of the alarm device can be given an impression thinner than the actual thickness of the alarm device, so that the alarm device can be given a thin and smart impression, and the alarm device can be given a thin and smart impression. It is possible to improve the design of the.

According to the alarm device described in Appendix 2, since the light transmitting means is an guiding member that guides the gas, for example, the inflow of the gas into the detecting means can be promoted, so that the light transmitting means can be swiftly performed at an appropriate timing. An alarm (for example, an alarm regarding the occurrence of a fire) can be issued. In particular, 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 a fixing member for fixing the insect repellent means, so that, for example, a dedicated part for fixing the insect repellent means (for example, for locking the insect repellent means). 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.

According to the alarm device described in Appendix 4, since the light transmitting means is a diffusing member that diffuses the light emitted by the light emitting means, for example, 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 to the user. It is possible to reliably notify the occurrence of a fire.

According to the alarm device according to Appendix 5, the light transmitting means is a support member that supports the measuring means, so that, for example, a dedicated component for supporting the measuring means (for example, for locking and supporting the measuring means). Since it is not necessary to provide a locking support 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 6, the alarm device is a sensor or alarm device that senses smoke, heat, or carbon monoxide, so that the alarm device is a translucent means for the user who visually recognizes the sensor or alarm device. The appearance can be used to give the impression that at least the thickness of the sensor or alarm is thinner than the actual thickness of the sensor or alarm, thus giving a thin and smart impression of the sensor or alarm. Can be given, and the design of the sensor or alarm can be improved.

1 Mounting base 2 Back plate 3 Housing 4 Detection space 5 Support part 6 Insect-proof net 7 Circuit part 11 Mounting surface 21 Spacer 31 Main body part 32 Translucent part 32A Translucent part 33 Rib 51 Board support part 52 Element support part 71 Circuit board 72 Detection side light emitting part 73 Detection side light receiving part 74 Alarm side light emitting part 81 Temperature measuring part 100 Sensor 100A Sensor 311 Housing side inflow opening 312 Housing side outflow opening 313 Inclined surface 321 Opposite surface 324A Temperature measuring part cover 322 Light guide part 323 Diffusion Part 324B Cover support part 611 Stopper 711 Board 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 (4)

An alarm device that has a mounting surface that can be mounted on an object to be installed.
Accommodating means for accommodating the components of the alarm device and
A translucent means that covers at least a part of the accommodating means from a side opposite to the mounting surface side.
Insect repellent means for preventing insects outside the containment means from invading the inside of the containment means, and
A measuring means for measuring a physical quantity around the alarm device is provided.
The translucent means is a fixing member for fixing the insect repellent means to the accommodating means.
The translucent means is a support member that supports the measuring means.
Alarm device. A detection means for detecting a detection target contained in a gas, the accommodating means includes the detecting means accommodated as a component thereof.
The translucent means is an guiding member that guides a gas outside the accommodating means to the detecting means.
The alarm device according to claim 1. Equipped with a light emitting means that emits light,
The light transmitting means is a diffusing member that diffuses the light emitted by the light emitting means.
The alarm device according to claim 1 or 2. The alarm device is a detector or alarm that senses smoke, heat, or carbon monoxide.
The alarm device according to any one of claims 1 to 3.

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