JP6453048B2

JP6453048B2 - Detector

Info

Publication number: JP6453048B2
Application number: JP2014226433A
Authority: JP
Inventors: 裕紀辰巳
Original assignee: New Cosmos Electric Co Ltd
Current assignee: New Cosmos Electric Co Ltd
Priority date: 2014-11-06
Filing date: 2014-11-06
Publication date: 2019-01-16
Anticipated expiration: 2034-11-06
Also published as: JP2016091380A

Description

本発明は、検知対象を検知する検知器に関する。 The present invention relates to a detector that detects a detection target.

この種の検知器は、例えば、火災により発生する煙や温度上昇、不完全燃焼により発生するＣＯガス、都市ガス等のガス漏れにより発生する漏洩ガス等を検知対象とし、その検知対象の状況に応じた警報を行う警報器等として用いられている。 This type of detector detects, for example, smoke generated by fire, temperature rise, CO gas generated by incomplete combustion, leaked gas generated by gas leaks such as city gas, etc. It is used as an alarm device that performs a corresponding alarm.

特許文献１には、室の壁面等の被取付面に取り付け可能な取付面を有するケースに、これの内部に流入した煙等の検知対象を検知するセンサが内蔵され、検知対象をケースの内部に流入させる流入口が前記取付面側に連なるケースの側面部に開口形成された所謂センサ内蔵式の検知器が示されている。この特許文献１記載の検知器では、流入口が開口形成されたケースの側面部全体が取付面に対して垂直姿勢に構成されている。 In Patent Document 1, a sensor having a mounting surface that can be attached to a mounting surface such as a wall surface of a chamber is incorporated with a sensor that detects a detection target such as smoke that has flowed into the case. A so-called sensor-incorporated detector is shown in which an inflow port for inflow is formed in the side surface portion of the case connected to the mounting surface side. In the detector described in Patent Document 1, the entire side surface portion of the case in which the inflow opening is formed is configured in a vertical posture with respect to the mounting surface.

特開２０１０−２５７１７５号公報JP 2010-257175 A

一般に、センサ内蔵式の検知器では、センサをケースの外部に突出配置するものに比べ、すっきりした印象を与えて設置空間に馴染み易いものの、センサを内蔵する分、被取付面に取り付けた状態で被取付面からの突出寸法となるケース厚（ケースの取付面に対する垂直方向の外形寸法）が嵩み、更に、センサ周囲の内蔵物の存在によって検知対象に対するセンサの応答速度も遅くなり易い。 In general, a sensor with a built-in sensor gives a clean impression and is easy to adjust to the installation space compared to a sensor that protrudes from the outside of the case. The case thickness (outside dimension in the direction perpendicular to the mounting surface of the case) that protrudes from the mounted surface increases, and the presence of built-in objects around the sensor tends to slow the response speed of the sensor to the detection target.

これに対し、特許文献１記載の検知器では、ケースの側面部全体がケースの厚み方向（取付面に対する垂直方向）に沿う姿勢にあるので、見掛け上のケース厚が実寸に近い寸法で認識され易く、看者に嵩高な印象を与え易い不都合がある。また、流入口の開口面全体がケースの厚み方向に沿う姿勢にあるので、応答速度に影響する開口面積をケースの側面部の中で稼ぐのが難しい不都合もある。 On the other hand, in the detector described in Patent Document 1, since the entire side surface portion of the case is in a posture along the thickness direction of the case (perpendicular to the mounting surface), the apparent case thickness is recognized as a size close to the actual size. There is an inconvenience that it is easy to give the viewer a bulky impression. Further, since the entire opening surface of the inflow port is in a posture along the thickness direction of the case, there is a disadvantage that it is difficult to earn the opening area that affects the response speed in the side surface portion of the case.

この実情に鑑み、本発明の主たる課題は、看者にコンパクトな印象を与えることができるとともに、ケースの側面部において流入口の開口面積を良好に確保することのできる検知器を提供する点にある。 In view of this situation, the main problem of the present invention is to provide a detector that can give a compact impression to a viewer and can ensure a sufficient opening area of the inlet at the side surface of the case. is there.

本発明の第１特徴構成は、被取付面に取り付け可能な取付面を有するケースに、これの内部に流入した検知対象を検知するセンサが内蔵され、検知対象をケースの内部に流入させる流入口が前記取付面側に連なるケースの側面部に開口形成されている検知器であって、
前記ケースの側面部が、前記取付面側がその反対側よりもケース内方側に位置する形状に構成されているとともに、
前記流入口が、前記ケースの側面部において前記取付面側ほどケース内方側に位置する傾斜姿勢の傾斜開口面を少なくとも取付面側に備えて構成され、
前記傾斜開口面における取付面側開口縁に前記取付面とは反対側で対向する部位には、ケース内外方向において、前記取付面側開口縁よりも外方側の位置から、前記取付面側開口縁よりも内方側の位置まで検知対象を流入案内する流入案内面が設けられている点にある。 A first characteristic configuration of the present invention is a case in which a sensor having a mounting surface that can be attached to a mounted surface has a built-in sensor that detects a detection target flowing into the case, and the detection target flows into the case. Is a detector in which an opening is formed in a side surface portion of the case connected to the mounting surface side,
The side surface portion of the case is configured in a shape in which the mounting surface side is located on the inner side of the case from the opposite side,
The inflow port is configured to include an inclined opening surface in an inclined posture located on the inner side of the case toward the mounting surface side in the side surface portion of the case at least on the mounting surface side ,
The portion of the inclined opening surface facing the mounting surface side opening edge on the side opposite to the mounting surface is open from the position outside the mounting surface side opening edge in the inside / outside direction of the case. An inflow guide surface that guides the detection target to the position inside the edge is provided .

上記構成によれば、ケースの側面部のうちのケース内方側に位置する取付面側が視覚的に識別し難くなるので、ケースの側面部のうちのケース外方側に位置する取付面側とは反対側が見掛け上のケース厚として認識され易くなる。よって、見掛け上のケース厚を小さくすることができる。 According to the above configuration, since the mounting surface side located on the inner side of the case among the side surface portions of the case is difficult to visually identify, the mounting surface side positioned on the outer side of the case among the side surface portions of the case and Is easily recognized as the apparent case thickness on the opposite side. Therefore, the apparent case thickness can be reduced.

また、ケースの側面部における流入口の少なくとも取付面側に備えられた傾斜開口面がケースの厚み方向から傾斜する姿勢にあるので、その分、流入口の開口面全体がケースの厚み方向に沿う姿勢にあるものに比べ、ケースの側面部において流入口の開口面積を大きくすることができる。 Further, since the inclined opening surface provided on at least the mounting surface side of the inflow port in the side surface portion of the case is in a posture inclined from the thickness direction of the case, the entire opening surface of the inflow port is accordingly along the thickness direction of the case. Compared to the posture, the opening area of the inflow port can be increased in the side surface portion of the case.

すなわち、この構成によれば、ケースの側面部の形状によって看者にコンパクトな印象を与えることができるとともに、そのケースの側面部の形状を利用して流入口の開口面積を良好に確保することができる。 That is, according to this configuration, the shape of the side surface portion of the case can give a compact impression to the viewer, and the opening area of the inflow port can be ensured satisfactorily using the shape of the side surface portion of the case. Can do.

しかも、例えば、検知対象が空気中に存在（含有や浮遊等）する場合、壁等の被取付面の近くの部位では被取付面との摩擦抵抗で空気の流速が低下し易いが、開口面積の大きな傾斜開口面がケースの側面部の取付面側に備えられているので、空気の流速が低下しがちな被取付面の近傍の検知対象も流入口に流入させ易くすることができる。 Moreover, for example, when the detection target exists in the air (contains or floats, etc.), the air flow velocity tends to decrease due to the frictional resistance with the mounted surface in the vicinity of the mounted surface such as a wall, but the opening area Since the large inclined opening surface is provided on the mounting surface side of the side surface portion of the case, it is possible to easily allow the detection target in the vicinity of the mounted surface where the air flow rate tends to decrease to flow into the inflow port.

なお、本構成の実施において、ケースの側面部の全周又は略全周を前記形状に構成すれば、ケースを被取付面に取り付けた状態でケースの側面部全体が被取付面側に窄まる形状になるので、看者にコンパクトな印象を一層強く与えることができる。 In the implementation of this configuration, if the entire circumference or substantially the entire circumference of the side surface portion of the case is configured in the above-described shape, the entire side surface portion of the case is narrowed to the attached surface side with the case attached to the attached surface. Because of the shape, it is possible to give the viewer a more compact impression.

例えば、検知対象が空気中に存在する場合、被取付面に取り付けた状態で流入口に向かって流れる空気がケース内方側に位置する取付面側開口縁にぶつかって流れが被取付面から離れる向きに変更され、その向き変更分の空気中の検知対象が流入口に流入し難くなる虞がある。 For example, if the detection target is present in the air, from the attached surface flows hit the mounting surface side opening edge of the air flowing toward the inlet port in a state attached to the attachment surface is positioned on the case inner side There is a possibility that the detection target in the air corresponding to the direction change becomes difficult to flow into the inflow port.

これに対し、上記構成によれば、流入口における取付面側開口縁に取付面とは反対側で対向する部位に備えられた流入案内面が、ケース内外方向において取付面側開口縁に相当する位置、又は、それよりもケース内方側まで検知対象を流入案内するので、流入口における取付面側開口縁にぶつかって流れが被取付面から離れる向きに変更された空気中の検知対象も流入口に流入し易くすることができる。 On the other hand, according to the above-described configuration, the inflow guide surface provided at the portion facing the mounting surface side opening edge at the inflow port on the side opposite to the mounting surface corresponds to the mounting surface side opening edge in the case inside / outside direction. Since the detection target is guided to the position or the inner side of the case from the position, the detection target in the air that has flowed away from the mounting surface by hitting the opening edge on the mounting surface side at the inlet will also flow. It can be made easier to flow into the inlet.

本発明の第２特徴構成は、前記流入口には、前記取付面に対する遠近方向に延びる縦桟とこれの交差方向に延びる横桟とが架設されているとともに、
前記横桟と前記縦桟との交差部において横桟の外面が縦桟の外面よりもケース外方側に位置するように、横桟の交差部に対応する部位がケース外方側に張り出し形成されている点にある。 In the second characteristic configuration of the present invention, a vertical beam extending in a perspective direction with respect to the mounting surface and a horizontal beam extending in an intersecting direction of the mounting surface are installed at the inflow port.
A portion corresponding to the crossing portion of the horizontal beam is formed to project outward from the case so that the outer surface of the horizontal beam is located on the outer side of the case with respect to the outer surface of the vertical beam at the intersection of the horizontal beam and the vertical beam. It is in the point.

上記構成によれば、例えば、縦桟と横桟によって異物や使用者の手指等が流入口に入り込むのを阻止しながら、主に縦桟によってケースを補強することができる。この場合、ケースの補強の面から縦桟は横桟よりも横断面が大きくなり易く、そのため、特に流入口の縦桟周辺部位では検知対象が流入し難くなる虞がある。
これに対し、上記構成によれば、横桟と縦桟との交差部において横桟の外面が縦桟の外面よりもケース外方側に位置するように、横桟の交差部に対応する部位がケース外方側に張り出し形成されているので、この横桟の張り出し部位による検知対象の案内作用によって縦桟周辺部位（交差部）への外部からの検知対象の取り込み量（流入口への流入対象となる検知対象の量）を増やすことができる。そして、このように縦桟周辺部位への外部からの検知対象の取り込み量を増やすことで、流入口の縦桟周辺部位において検知対象が流入口に流入し難くなるのを流入対象となる検知対象の量で補って、結果的に検知対象の流入口への流入量を確保することができる。
また、例えば、流入口における縦桟の端面にぶつかって流れが変更された検知対象を横桟の張り出し部位でもって流入口に流入案内することで、縦桟の存在で検知対象が流入口に流入し難くなるのを効率的に抑制することなども可能になる。 According to the above configuration, for example, the case can be reinforced mainly by the vertical beam while preventing the foreign object and the user's fingers from entering the inflow port by the vertical beam and the horizontal beam. In this case, from the viewpoint of reinforcing the case, the vertical beam is likely to have a larger cross section than the horizontal beam, and therefore, there is a possibility that the detection target is difficult to flow in particularly at a portion around the vertical beam at the inlet.
On the other hand, according to the above configuration, at the intersection between the horizontal beam and the vertical beam, the part corresponding to the intersection of the horizontal beam so that the outer surface of the horizontal beam is located on the outer side of the case with respect to the outer surface of the vertical beam. Is formed on the outside of the case so that the amount of the detection target taken in from the outside to the vertical crossing (intersection) by the guide action of the detection target by the protruding part of the horizontal cross (inflow to the inlet) It is possible to increase the amount of detection target. In addition, by increasing the amount of detection target from the outside to the vertical beam peripheral part in this way, it becomes difficult for the detection target to flow into the inlet at the vertical crossing part of the inlet. As a result, it is possible to secure an inflow amount to the detection target inflow port.
In addition, for example, by guiding the detection target whose flow has been changed by hitting the end face of the vertical beam at the inflow port to the inflow port with the protruding portion of the horizontal beam, the detection object flows into the inflow port due to the presence of the vertical beam. It is also possible to efficiently suppress the difficulty of the operation.

本発明の第３特徴構成は、前記ケースが、前記側面部に複数の隅部を有する外郭形状に構成されているとともに、
前記ケースの各隅部には、ケースの前記取付面側とその反対側とを繋ぐ繋ぎ部が形成され、これら繋ぎ部どうしの隣接端面間に前記流入口が開口形成されている点にある。 According to a third characteristic configuration of the present invention, the case is configured in an outer shape having a plurality of corners on the side surface part,
At each corner of the case, a connecting portion that connects the attachment surface side of the case and the opposite side is formed, and the inflow opening is formed between adjacent end surfaces of the connecting portions.

上記構成によれば、ケースの側面部の各隅部に形成された繋ぎ部によってケースの外郭形状を効率的に構成することができるとともに、このケースの外郭形状を利用してケースの側面部に大きな開口面積の流入口を形成することができる。 According to the above configuration, the outer shape of the case can be efficiently configured by the connecting portions formed at the respective corners of the side surface portion of the case, and the side surface portion of the case is utilized by utilizing the outer shape of the case. An inlet having a large opening area can be formed.

検知器の第１実施形態を示す前面側（正面側）の斜視図Front view (front side) perspective view showing the first embodiment of the detector 検知器の第１実施形態を示す後面側（背面側）の斜視図Rear view (back side) perspective view showing the first embodiment of the detector ケース本体、基板及び第１カバーの分解斜視図An exploded perspective view of the case body, the substrate, and the first cover 第１カバーを装着したケース本体、第２カバーの分解斜視図Disassembled perspective view of the case body and the second cover with the first cover attached 図１におけるＶ−Ｖ線断面図VV sectional view in FIG. 図１におけるＶＩ−ＶＩ線断面図Sectional view taken along line VI-VI in FIG. ケースの側面部の要部の端面図End view of the main part of the side of the case 検知器の第２実施形態を示す後面側（背面側）の斜視図Rear view side (back side) perspective view showing a second embodiment of the detector （ａ）ケースの側面部（上下の側面側の部位）の要部の端面図、（ｂ）ケースの側面部（左右の側面側の部位）の要部の端面図(A) End view of the main part of the side part (upper and lower side parts) of the case, (b) End view of the main part of the side part (left and right side parts) of the case （ａ）別実施形態の横桟の張り出し部位を示す要部の断面図、（ｂ）別実施形態の横桟の張り出し部位を示す要部の断面図(A) Cross-sectional view of the main part showing the overhanging part of the horizontal beam of another embodiment, (b) Cross-sectional view of the main part showing the overhanging part of the horizontal beam of another embodiment

本発明に係る検知器の実施形態を図面に基づいて説明する。
［第１実施形態］
図１〜図７は、室の壁面等の被取付面Ｗに取り付けて用いられる検知器を示し、この検知器は、被取付面Ｗに取り付け可能なケース３に、電源部からの電力供給により検知対象を検知するセンサ２を内蔵して構成されている。以下、図中、Ｘ方向を「ケース３の上下方向」とし、Ｙ方向を「ケース３の横幅方向」とし、Ｚ方向を「ケース３の前後方向」として詳細に説明する。 An embodiment of a detector according to the present invention will be described with reference to the drawings.
[First Embodiment]
FIGS. 1-7 shows the detector used by attaching to the to-be-attached surface W, such as a wall surface of a room, This detector is attached to case 3 which can be attached to the to-be-attached surface W by the electric power supply from a power supply part. The sensor 2 for detecting the detection target is built in. Hereinafter, in the figure, the X direction is referred to as “the vertical direction of the case 3”, the Y direction is referred to as “the lateral width direction of the case 3”, and the Z direction is described as “the longitudinal direction of the case 3”.

ケース３は、内部の中空空間をセンサ２の収納箇所とする略扁平直方体状に形成され、図１、２に示すように、収納箇所の前面側（正面側）を覆う前面部（第１被覆部位）３Ａと、収納箇所の側面側を覆う側面部（第２被覆部位）３Ｂと、収納箇所の後面側（背面側）を覆う後面部（第３被覆部位）３Ｃとを備えてなる。 The case 3 is formed in a substantially flat rectangular shape having an internal hollow space as a storage location for the sensor 2 and, as shown in FIGS. 1 and 2, a front surface portion (first covering) covering the front side (front side) of the storage location. 3A, a side surface portion (second covering portion) 3B that covers the side surface side of the storage location, and a rear surface portion (third covering portion) 3C that covers the rear surface side (back side) of the storage location.

この実施形態では、前面部３Ａ及び後面部３Ｃの夫々が矩形状に形成されており、側面部３Ｂとして、上側面側を覆う部位と、下側面側を覆う部位と、左側面側を覆う部位と、右側面側を覆う部位とが備えられている。 In this embodiment, each of the front surface portion 3A and the rear surface portion 3C is formed in a rectangular shape, and as the side surface portion 3B, a portion covering the upper side surface, a portion covering the lower side surface side, and a portion covering the left side surface side. And a portion covering the right side surface side.

ケース３の後面部３Ｃの上部には、壁掛け用の取付孔４を備えた係止部５がケース外方側に突出する状態で備えられ、ケース３の後面部３Ｃを被取付面Ｗ側に位置させる状態で被取付面Ｗに対しビス６等の固定具でケース３を取り付け可能に構成されている。つまり、ケース３の後面部３Ｃは、被取付面Ｗに対する取付面を構成する。 An upper portion of the rear surface portion 3C of the case 3 is provided with a locking portion 5 having a mounting hole 4 for hanging on the wall so as to protrude outward from the case, and the rear surface portion 3C of the case 3 is disposed on the mounting surface W side. The case 3 is configured to be attachable to the attachment surface W with a fixture such as a screw 6 in a state of being positioned. That is, the rear surface portion 3 C of the case 3 constitutes an attachment surface for the attachment surface W.

ケース３は、図３、図４に示すように、前方側を開口させた有底筒状のケース本体７と、そのケース本体７の前方開口部の一部を覆う第１カバー８と、その第１カバー８を覆う第２カバー９とから構成されている。 As shown in FIGS. 3 and 4, the case 3 includes a bottomed cylindrical case body 7 having an opening on the front side, a first cover 8 that covers a part of the front opening of the case body 7, The second cover 9 covers the first cover 8.

ケース本体７は、前方開口部を備えた前面視（正面視）で矩形状に形成され、ケース３の後面部３Ｃと上下左右の４つの側面部３Ｂを構成する。ケース本体７の内部には、センサ２に加えて、電源部としての電池１、センサ２の検知動作やその検知状況に応じた警報動作の制御や電池１からの電力供給のオンオフ制御等の各種の制御を行う制御回路を有した基板１３、音声等により警報を行うスピーカ部１４、点灯表示等により警報を行う警報表示部１５、点灯表示等により電源のオンオフ状態を示す電源表示部１６等の各種の機器が収納されている。 The case body 7 is formed in a rectangular shape in front view (front view) with a front opening, and constitutes a rear surface portion 3C of the case 3 and four side portions 3B on the upper, lower, left, and right sides. In addition to the sensor 2, the case body 7 includes various sensors such as a battery 1 as a power source, a detection operation of the sensor 2, an alarm operation according to the detection state, and an on / off control of power supply from the battery 1. A substrate 13 having a control circuit for controlling the sound, a speaker unit 14 for giving an alarm by sound, an alarm display unit 15 for giving an alarm by lighting display, a power display unit 16 showing an on / off state of the power by a lighting display, etc. Various devices are stored.

第１カバー８と第２カバー９は、ケース本体７の前方開口部に備えられている。第１カバー８は、ケース本体７の前方開口部における電池１の収容部位を除く部位を覆う状態で装着され、他方、第２カバー９は、ケース本体７の前方開口部の全体を覆う状態で装着されている。そのため、この検知器は、第２カバー９を取り外すことで、第１カバー８は装着したままで電池１の着脱作業やメンテナンスを実施することができる。第２カバー９は、ケース本体７の前方開口部に装着した状態でケース３の前面部３Ａを構成する。 The first cover 8 and the second cover 9 are provided in the front opening of the case body 7. The first cover 8 is mounted so as to cover a portion of the front opening of the case main body 7 excluding the housing portion of the battery 1, while the second cover 9 is in a state of covering the entire front opening of the case main body 7. It is installed. Therefore, this detector can carry out the attaching / detaching operation and the maintenance of the battery 1 with the first cover 8 attached by removing the second cover 9. The second cover 9 constitutes the front surface portion 3 A of the case 3 in a state of being attached to the front opening of the case body 7.

第１カバー８及び第２カバー９の夫々には、スピーカ部１４を覆う部位にスピーカ部１４からの音声を外部に伝達するためのスピーカ用開口部８ａ、９ａが形成されている。また、第１カバー８には、警報表示部１５及び電源表示部１６の光を透過する状態で表示部１５、１６を覆う透光性の表示カバー部位８ｂ、８ｃが備えられているとともに、第２カバー９には、第１カバー８の表示カバー部位８ｂ、８ｃを外部に露出させる表示用開口部９ｂ、９ｃが備えられている。 In each of the first cover 8 and the second cover 9, speaker openings 8a and 9a for transmitting sound from the speaker unit 14 to the outside are formed in portions covering the speaker unit 14. The first cover 8 is provided with translucent display cover parts 8b and 8c that cover the display parts 15 and 16 in a state where the light of the alarm display part 15 and the power supply display part 16 is transmitted. The second cover 9 is provided with display openings 9b and 9c that expose the display cover portions 8b and 8c of the first cover 8 to the outside.

なお、２０は、スピーカ部１４及び警報表示部１５により警報動作が行われた際に、その警報動作を停止させるための警報停止用操作部、１７は、電池１からの電力供給をオンとオフに切り換えるための電源切換用操作部である。 In addition, 20 is an alarm stop operation unit for stopping the alarm operation when an alarm operation is performed by the speaker unit 14 and the alarm display unit 15, and 17 is an on / off switch for power supply from the battery 1. It is the operation part for power supply switching for switching to.

センサ２は、例えば、火災により発生する煙や温度上昇、不完全燃焼により発生するＣＯガス、都市ガス等のガス漏れにより発生する漏洩ガス等の検知対象を検知可能に構成されている。この実施形態では、センサ２として、煙を検知する第１センサ２ａとＣＯガスを検知する第２センサ２ｂと漏洩ガスを検知する第３センサ２ｃの３つのセンサが備えられている。なお、センサ２は、このような検知対象を検知できるものであれば、各種の構造を採用することができ、また、適宜の個数を採用することができる。 The sensor 2 is configured to be able to detect a detection target such as smoke generated by a fire, temperature rise, CO gas generated due to incomplete combustion, leaked gas generated due to gas leakage such as city gas, and the like. In this embodiment, the sensor 2 includes three sensors: a first sensor 2a that detects smoke, a second sensor 2b that detects CO gas, and a third sensor 2c that detects leakage gas. As long as the sensor 2 can detect such a detection target, various structures can be adopted, and an appropriate number can be adopted.

ケース３の側面部３Ｂには、図５、図６に示すように、空気を内部に流入可能な流入口１０が開口形成され、この流入口１０を通してケース３の内部に流入する空気から検知対象をセンサ２で検知するように構成されている。流入口１０は、ケース３の上下左右の側面部３Ｂの夫々に備えられ、ケース３の側面部３Ｂの全周に亘ってケース３の外部からケース３の内部に空気を流入可能に構成されている。 As shown in FIGS. 5 and 6, the side surface portion 3 B of the case 3 is formed with an inflow port 10 through which air can flow into the inside, and the object to be detected from the air flowing into the case 3 through the inflow port 10. Is detected by the sensor 2. The inflow port 10 is provided on each of the upper, lower, left and right side surface portions 3B of the case 3, and is configured to allow air to flow into the case 3 from the outside of the case 3 over the entire circumference of the side surface portion 3B of the case 3. Yes.

ケース３の内部における機器のレイアウトは、図３に示すように、上下方向及び左右方向では、電池１が左上方側に配置され、その電池１の下方側に第１センサ２ａが配置され、更に、電源表示部１６が左下端部に配置されている。また、スピーカ部１４が右上方側に配置され、そのスピーカ部１４の下方側に第２センサ２ｂが配置され、更に、その第２センサ２ｂの下方側に第３センサ２ｃが配置されている。基板１３は、ケース本体７に収納された第１センサ２ａを覆う状態で取り付けられている。 As shown in FIG. 3, the layout of the device inside the case 3 is such that the battery 1 is arranged on the upper left side in the up and down direction and the left and right direction, the first sensor 2 a is arranged on the lower side of the battery 1, and The power display unit 16 is disposed at the lower left end. The speaker unit 14 is disposed on the upper right side, the second sensor 2b is disposed below the speaker unit 14, and the third sensor 2c is disposed below the second sensor 2b. The substrate 13 is attached so as to cover the first sensor 2 a housed in the case body 7.

更に、図５、図６に示すように、前後方向では、第１センサ２ａが、ケース本体７の取付面側であるケース３の後面部３Ｃ側に配置されているとともに、電池１、基板１３、第２センサ２ｂ、第３センサ２ｃ、スピーカ部１４、警報表示部１５、電源表示部１６等の第１センサ２ａ以外の機器は、ケース本体７の開口部側であるケース３の前面部３Ａ側に配置されている。 Further, as shown in FIGS. 5 and 6, in the front-rear direction, the first sensor 2 a is disposed on the rear surface portion 3 C side of the case 3, which is the attachment surface side of the case body 7, and the battery 1 and the substrate 13. The devices other than the first sensor 2a, such as the second sensor 2b, the third sensor 2c, the speaker unit 14, the alarm display unit 15, and the power supply display unit 16, are the front side portion 3A of the case 3 which is the opening side of the case body 7. Arranged on the side.

つまり、この検知器では、ケース３の側面部３Ｂの全周に亘って流入口１０を形成して、ケース３の側面部３Ｂの全周に亘って空気をケース３の内部に流入することに対し、上述のような内蔵機器のレイアウトを採用することで、第１センサ２ａ、第２センサ２ｂ、第３センサ２ｃの各々に適切且つ効率的に空気を流通させる。 That is, in this detector, the inflow port 10 is formed over the entire circumference of the side surface portion 3B of the case 3, and air flows into the inside of the case 3 over the entire circumference of the side surface portion 3B of the case 3. On the other hand, by adopting the layout of the built-in device as described above, air is circulated appropriately and efficiently to each of the first sensor 2a, the second sensor 2b, and the third sensor 2c.

特に、煙を検知対象とするために空気の流通性が要求される第１センサ２ａが、ケース３の内部において他の機器とは前後方向（Ｚ方向）で反対側に配置されているので、第１センサ２ａの周囲に空気流通空間を良好に確保することができる。よって、他の機器に邪魔されることなく、ケース３の側面部３Ｂの全周から第１センサ２ａに適切に空気を流通させることができる。 In particular, since the first sensor 2a, which requires air circulation to detect smoke as a detection target, is arranged on the opposite side in the front-rear direction (Z direction) with respect to other devices in the case 3, A good air circulation space can be secured around the first sensor 2a. Therefore, air can be appropriately circulated from the entire circumference of the side surface portion 3B of the case 3 to the first sensor 2a without being obstructed by other devices.

更に、ケース３の内部に占める体積の大きな電池１が、ケース３の内部において第１センサ２ａとは前後方向（Ｚ方向）で反対側に配置されているので、電池１を迂回して第１センサ２ａに空気を流通させる迂回空気流通路等が不要となり、その分、ケース３のケース厚（前後方向での大きさ）を小さくしてケース３のコンパクト化を図ることができる。 Further, since the battery 1 having a large volume occupying the inside of the case 3 is disposed inside the case 3 on the opposite side to the first sensor 2a in the front-rear direction (Z direction), the battery 1 bypasses the battery 1 and the first A detour air flow passage or the like for circulating air to the sensor 2a becomes unnecessary, and accordingly, the case 3 can be made compact by reducing the case thickness (size in the front-rear direction) of the case 3.

しかも、ケース３の各内蔵機器のうち、第１センサ２ａを除く大部分の機器がケース３の前面部３Ａ側に配置されているので、ケース３の後面部３Ｃ側にスペース的な余裕を生むことができる。そのため、ケース３の側面部３Ｂにおける後面部３Ｃ側の形状（取付面側の形状）の設計自由度を高めることができる。 Moreover, since most of the built-in devices of the case 3 except the first sensor 2a are arranged on the front surface portion 3A side of the case 3, a space margin is generated on the rear surface portion 3C side of the case 3. be able to. Therefore, the degree of freedom in designing the shape of the side surface portion 3B of the case 3 on the side of the rear surface portion 3C (shape on the mounting surface side) can be increased.

そして、この検知器は、上述した機器のレイアウトに伴う高い設計自由度を活用して後述する如き、ケース３の側面部３Ｂの形状、及び、流入口１０の形状を採用することで、コンパクト化を図り、見掛け上においては更に看者にコンパクトな印象を与え、しかも、流入口１０の開口面積を良好に確保できるようにしてある。 The detector is made compact by adopting the shape of the side surface portion 3B of the case 3 and the shape of the inflow port 10 as will be described later by utilizing the high degree of design freedom associated with the layout of the device described above. In terms of appearance, the viewer is given a more compact impression, and the opening area of the inlet 10 can be secured satisfactorily.

ケース３は、図１、図２に示すように、側面部３Ｂに四つ（複数の一例）の隅部を有する外郭形状に構成されていて、このケース３の側面部３Ｂの四隅には、前後方向（Ｚ方向）に延びてケース３の前面部３Ａと後面部３Ｃとを繋ぐ繋ぎ部（柱部）７ａが形成されている。そして、これら繋ぎ部７ａどうしの対向面間に流入口１０が形成されている。 As shown in FIG. 1 and FIG. 2, the case 3 is configured in an outer shape having four (a plurality of examples) corners on the side surface portion 3 B, and at the four corners of the side surface portion 3 B of the case 3, A connecting portion (column portion) 7a that extends in the front-rear direction (Z direction) and connects the front surface portion 3A and the rear surface portion 3C of the case 3 is formed. And the inflow port 10 is formed between the opposing surfaces of these connection parts 7a.

つまり、この検知器は、ケース３の強度上の要となる四隅に対し、対向面間に流入口１０を形成する状態で繋ぎ部７ａを形成することで、ケース３の外郭形状を効率的に構成しながら、ケース３の側面部３Ｂの全周に亘って大きな開口面積の流入口１０を備えさせ、ケース３の内部への空気の流入を効果的且つ効率的に行わせる。 In other words, this detector efficiently forms the outer shape of the case 3 by forming the connecting portion 7a in the state where the inlet 10 is formed between the opposing surfaces with respect to the four corners that are important in the strength of the case 3. While being configured, the inflow port 10 having a large opening area is provided over the entire circumference of the side surface portion 3B of the case 3 so that air can be effectively and efficiently introduced into the case 3.

流入口１０には、前後方向（Ｚ方向）に延びる縦桟（中間柱部）１２と、前後方向（Ｚ方向）に直交する方向に延びる板状の横桟（区画部）１１とが備えられている。縦桟１２と横桟１１とによって繋ぎ部７ａどうしの間の開口部を区画することで、誤って異物や使用者の手等がケース３の内部に挿入されるのを阻止するとともに、主に縦桟１２によってケース３を補強する。 The inflow port 10 includes a vertical beam (intermediate column portion) 12 extending in the front-rear direction (Z direction) and a plate-shaped horizontal beam (partition portion) 11 extending in a direction orthogonal to the front-rear direction (Z direction). ing. By partitioning the opening between the connecting portions 7a by the vertical beam 12 and the horizontal beam 11, the foreign object and the user's hand are prevented from being accidentally inserted into the case 3, and mainly The case 3 is reinforced by the vertical beam 12.

次に、ケース３の側面部３Ｂの形状、及び、流入口１０の形状について詳述する。
ケース３の側面部３Ｂは、図２、図５〜図７に示すように、後面部３Ｃ側（ケース３の取付面側）の後面側部位３ｂが前面部３Ａ側（ケース３の取付面側とは反対側）の前面側部位３ａよりもケース内方側に位置する形状に構成されている。 Next, the shape of the side surface portion 3B of the case 3 and the shape of the inflow port 10 will be described in detail.
As shown in FIGS. 2 and 5 to 7, the side surface portion 3B of the case 3 has a rear surface portion 3b on the rear surface portion 3C side (mounting surface side of the case 3) and the front surface portion 3A side (mounting surface side of the case 3). It is configured in a shape located on the inner side of the case with respect to the front side portion 3a on the opposite side.

本実施形態では、ケース３の側面部３Ｂにおいて後面側部位３ｂが前面側部位３ａよりも一段ケース内方側に位置するように構成されているとともに、ケース３の上下左右の四つの側面部３Ｂが同一又は略同一の形状に構成されている。略言すれば、ケース３の側面部３Ｂは、全体として後方に向かって階段状に窄まる後方窄まり形状に構成されている。 In the present embodiment, the rear surface side portion 3b of the side surface portion 3B of the case 3 is configured to be positioned on the inner side of the front case side portion 3a, and the four side surface portions 3B on the upper, lower, left, and right sides of the case 3 are arranged. Are configured in the same or substantially the same shape. In short, the side surface portion 3B of the case 3 is configured to have a rearwardly constricted shape that constricts in a stepped manner toward the rear.

このような形状を採用することで、取付けたときに、ケース３の側面部３Ｂのうちの後面側部位３ｂが視覚的に識別し難くなり、ケース３の側面部３Ｂのうちの前面側部位３ａが見掛け上のケース厚として認識され易くなる。そのため、この検知器は、見掛け上のケース厚が小さくなって、看者にコンパクトな印象を与えることができる。 By adopting such a shape, it becomes difficult to visually identify the rear surface side portion 3b of the side surface portion 3B of the case 3 when attached, and the front surface side portion 3a of the side surface portion 3B of the case 3 becomes difficult to visually identify. Is easily recognized as an apparent case thickness. For this reason, this detector has a small apparent case thickness and can give a compact impression to the viewer.

しかも、ケース３の側面部３Ｂにおける後面側部位３ｂと前面側部位３ａとの間で段差があるので、この段差による両部位３ａ、３ｂの視覚的な分離作用により、後面側部位３ｂの視覚的な識別し難さ、及び、前面側部位３ａの見掛け上のケース厚としての認識し易さが強調され、その分、看者に与えるコンパクトな印象を一層強くすることができる。 In addition, since there is a step between the rear surface side portion 3b and the front surface side portion 3a in the side surface portion 3B of the case 3, the visual separation of the rear surface side portion 3b by the visual separation action of both the portions 3a and 3b by this step. It is emphasized that it is difficult to discriminate and that the front side portion 3a is easily recognized as an apparent case thickness, and the compact impression given to the viewer can be further strengthened accordingly.

流入口１０は、図７に示すように、ケース３の側面部３Ｂの前面部３Ａ側において前後方向に沿う非傾斜姿勢（ケース３の厚み方向に沿う姿勢）の非傾斜開口面１０ａと、ケース３の側面部３Ｂの後面部３Ｃ側において後面側ほどケース内方側に位置する傾斜姿勢の傾斜開口面１０ｂとを備えて構成されている。 As shown in FIG. 7, the inflow port 10 includes a non-inclined opening surface 10 a in a non-inclined posture (position along the thickness direction of the case 3) along the front-rear direction on the front surface portion 3 A side of the side surface portion 3 B of the case 3. The rear surface portion 3C side of the third side surface portion 3B is provided with an inclined opening surface 10b having an inclined posture positioned closer to the inner side of the case toward the rear surface side.

傾斜開口面１０ｂの傾斜角αは、ケース厚に沿う前後方向からケース内方側に傾斜した角度であり、ケース３の内部の後面側のスペースやセンサ２の応答速度等の各種の事情に応じて適宜に設定することができる。この傾斜開口面１０ｂは、ケース３の側面部３Ｂにおける前面側部位３ａと後面側部位３ｂとの間の段差部を利用して後面側部位３ｂに形成されている。 The inclination angle α of the inclined opening surface 10b is an angle inclined inward from the front-rear direction along the case thickness, and depends on various circumstances such as the space on the rear surface inside the case 3 and the response speed of the sensor 2. Can be set appropriately. The inclined opening surface 10b is formed in the rear surface side portion 3b using a step portion between the front surface side portion 3a and the rear surface side portion 3b in the side surface portion 3B of the case 3.

このように、流入口１０における少なくとも一部の開口面（傾斜開口面１０ｂ）をケース３の側面部３Ｂにおいてケース３の厚み方向から傾斜する傾斜姿勢とすることで、ケース３の側面部３Ｂにおいて流入口１０の開口面積を良好に確保する。しかも、傾斜開口面１０ｂがケース３の側面部３Ｂの後面部３Ｃ側（被取付面Ｗ側）に備えられているので、流速が低下しがちな被取付面Ｗの近傍の空気も流入口１０に流入させ易くすることができる。 As described above, at least a part of the opening surface (inclined opening surface 10 b) in the inlet 10 is inclined in the side surface portion 3 B of the case 3 from the thickness direction of the case 3. The opening area of the inlet 10 is ensured satisfactorily. In addition, since the inclined opening surface 10b is provided on the rear surface portion 3C side (attached surface W side) of the side surface portion 3B of the case 3, air near the attached surface W, where the flow velocity tends to decrease, is also in the inlet 10. It can be made easy to flow into.

流入口１０における後面側開口縁（取付面側開口縁）１０ｃに前方側（取付面とは反対側）で対向する部位には、ケース内外方向において後面側開口縁１０ｃに相当する位置Ｐ１よりもケース内方側の位置Ｐ２まで検知対象を流入案内する流入案内面１０ｄが設けられている。この流入案内面１０ｄは、流入口１０に備えられた複数の横桟１１のうち、後面側に位置する横桟１１の後面からなり、検知器を被取付面Ｗに取り付けた状態で被取付面Ｗに沿う面に構成されている。 The part of the inflow port 10 facing the rear surface side opening edge (mounting surface side opening edge) 10c on the front side (opposite side of the mounting surface) is located more than the position P1 corresponding to the rear surface side opening edge 10c in the inside / outside direction of the case. An inflow guide surface 10d that guides the detection target to the position P2 on the inner side of the case is provided. This inflow guide surface 10d is a rear surface of the horizontal beam 11 located on the rear surface side among the plurality of horizontal beams 11 provided in the inlet 10, and the mounted surface in a state where the detector is mounted on the mounted surface W. It is comprised on the surface along W.

そのため、この検知器では、流入案内面１０ｄによる案内作用によって、図７に示すように、流入口１０に向かう途中で流入口１０における後面側開口縁１０ｃにぶつかって流れが被取付面Ｗから離れる向きに変更された空気も流入口１０に流入させ易くすることができる。 Therefore, in this detector, as shown in FIG. 7, due to the guiding action by the inflow guide surface 10d, the flow collides with the rear opening edge 10c in the inflow port 10 on the way to the inflow port 10 and the flow is separated from the mounted surface W. The air that has been changed in direction can be easily introduced into the inlet 10.

［第２実施形態］
図８、図９は、本発明に係る検知器の第２実施形態を示し、この検知器では、ケース３が前面視（正面視）で横幅よりも上下幅が広い縦長矩形状に形成されているとともに、ケース３の側面部３Ｂ及び流入口１０が、上下の側面側の部位（図９（ａ）参照）と左右の側面側の部位（図９（ｂ）参照）とで異なる形状に構成されている。 [Second Embodiment]
8 and 9 show a second embodiment of the detector according to the present invention. In this detector, the case 3 is formed in a vertically long rectangular shape whose vertical width is wider than horizontal width in front view (front view). In addition, the side surface portion 3B and the inflow port 10 of the case 3 are configured to have different shapes in the upper and lower side surface portions (see FIG. 9A) and the left and right side surface portions (see FIG. 9B). Has been.

ケース３の側面部３Ｂは、略全体が後方側ほどケース内方側に位置する傾斜姿勢に構成され、且つ、流入口１０の開口面の略全体が傾斜開口面１０ｂに構成されている。そして、上下の側面側の部位における側面部３Ｂの傾斜姿勢及び傾斜開口面１０ｂの傾斜角α１が、左右の側面側の部位における側面部３Ｂの傾斜姿勢及び傾斜開口面１０ｂの傾斜角α２よりも大に構成されている。 The side surface portion 3B of the case 3 is configured in an inclined posture in which substantially the whole is positioned on the inner side of the case toward the rear side, and substantially the entire opening surface of the inflow port 10 is formed in the inclined opening surface 10b. Then, the inclination posture α1 of the side surface portion 3B and the inclination angle α1 of the inclined opening surface 10b in the upper and lower side surface portions are larger than the inclination posture of the side surface portion 3B and the inclination angle α2 of the inclination opening surface 10b in the left and right side surface portions. It is composed largely.

つまり、各種の機器を内蔵するためにケース３の形状は種々の制約を受けるが、この検知器では、このような制約を受ける状況下でケース３の側面部３Ｂにおける上下の側面側の部位で流入口１０の開口面積を広く確保することで、検知器の設置空間においてドラフト流等で生じ易い上下方向に沿う空気流を効果的且つ効率的に内部に流入させる。 That is, the shape of the case 3 is subject to various restrictions in order to incorporate various devices. In this detector, the upper and lower side surfaces of the side surface portion 3B of the case 3 are subject to such restrictions. By ensuring a wide opening area of the inflow port 10, an air flow along the vertical direction that is likely to be generated by a draft flow or the like in the installation space of the detector is effectively and efficiently introduced into the inside.

なお、ケース３の側面部３Ｂにおける流入口１０よりも前方側の部位は、当該部位近傍の検知対象を流入口１０に向かって流入案内する傾斜姿勢の流入案内面１０ｅを構成する。 In addition, the site | part ahead of the inflow port 10 in the side part 3B of case 3 comprises the inflow guide surface 10e of the inclination attitude | position which guides the detection object of the said site | part vicinity toward the inflow port 10.

その他の構成は、第１実施形態で説明した構成と同一であるから、同一の構成箇所には、第１実施形態と同一の番号を付記してそれの説明は省略する。 Since the other configuration is the same as the configuration described in the first embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

〔別実施形態〕
（１）前述の各実施形態の変形として、図１０に示すように、横桟１１と縦桟１２との交差部において横桟１１の外面１１ａが縦桟１２の外面１２ａよりもケース外方側に位置するように、横桟１１の交差部に対応する部位（張り出し部位）１１ｂがケース外方側に張り出し形成されていてもよい。この場合、横桟１１と縦桟１２との交差部の個数等に対応して、例えば、図１０（ａ）に示すように、１つの張り出し部位１１ｂを形成したり、図１０（ｂ）に示すように、横桟１１に複数の張り出し部位１１ｂを形成することができる。 [Another embodiment]
(1) As a modification of the above-described embodiments, as shown in FIG. 10, the outer surface 11 a of the horizontal beam 11 is on the outer side of the case from the outer surface 12 a of the vertical beam 12 at the intersection of the horizontal beam 11 and the vertical beam 12. The part (overhang | projection part) 11b corresponding to the cross | intersection part of the horizontal rail 11 may be overhang | projected and formed in the case outward side. In this case, for example, as shown in FIG. 10 (a), one overhanging portion 11b is formed corresponding to the number of intersections between the horizontal beam 11 and the vertical beam 12, or in FIG. 10 (b). As shown, a plurality of overhanging portions 11 b can be formed on the cross rail 11.

このようにすれば、検知対象が空気中に存在する場合に、横桟１１の張り出し部位１１ｂによる検知対象の案内作用によって縦桟１２周辺部位への外部からの検知対象の取り込み量（流入口１０への流入対象となる検知対象の量）を増やすことができるので、流入口１０の縦桟１２周辺部位において検知対象が流入口１０に流入し難くなるのを流入対象となる検知対象の量で補って、結果的に検知対象の流入口１０への流入量を確保することができる。また、例えば、流入口１０における縦桟１２の外面１２ａにぶつかって流れが変更された検知対象を横桟１１の張り出し部位１１ｂでもって流入口１０に流入案内することで、縦桟１２の存在で検知対象が流入口１０に流入し難くなるのを効率的に抑制することなども可能になる。 In this way, when the detection target exists in the air, the amount of the detection target taken into the peripheral portion of the vertical rail 12 by the guiding action of the detection target by the projecting portion 11b of the horizontal rail 11 (inlet 10 The amount of the detection target that becomes the inflow target can be increased, so that it is difficult for the detection target to flow into the inflow port 10 in the vicinity of the vertical rail 12 of the inflow port 10 by the amount of the detection target that becomes the inflow target. In addition, as a result, the amount of inflow to the inflow port 10 to be detected can be secured. Further, for example, the presence of the vertical beam 12 is obtained by guiding the detection target whose flow has been changed by hitting the outer surface 12a of the vertical beam 12 at the inlet 10 to the inlet 10 with the protruding portion 11b of the horizontal beam 11. It also becomes possible to efficiently suppress the detection target from becoming difficult to flow into the inflow port 10.

（２）前述の各実施形態では、センサ２に電力を供給する電源部として、ケース３に収容した電池１を例に示したが、室内に設置されたコンセント等の外部電源等であってもよい。 (2) In each of the above-described embodiments, the battery 1 housed in the case 3 is shown as an example of the power supply unit that supplies power to the sensor 2, but an external power supply such as an outlet installed indoors may be used. Good.

（３）前述の各実施形態では、ケース３の側面部３Ｂの全体が、取付面側がその反対側よりもケース内方側に位置する形状に構成されている場合を例に示したが、ケース３の側面部３Ｂの一部（例えば、上下左右の各々を覆う部位のうちの１又は複数の部位）だけが上記形状に構成されていてもよい。 (3) In the above-described embodiments, the case where the entire side surface portion 3B of the case 3 is configured to have a shape in which the mounting surface side is located on the inner side of the case with respect to the opposite side is illustrated as an example. Only a part of the three side surface portions 3B (for example, one or a plurality of portions covering the top, bottom, left, and right) may be configured in the above shape.

（４）また、前述の各実施形態では、全ての流入口１０が、ケース３の側面部３Ｂにおいて取付面側ほどケース内方側に位置する傾斜姿勢の傾斜開口面１０ｂを備えて構成されている場合を例に示したが、一部の流入口１０だけが傾斜開口面１０ｂを備えて構成されていてもよい。 (4) Moreover, in each above-mentioned embodiment, all the inflow ports 10 are provided with the inclination opening surface 10b of the inclination attitude | position which is located in a case inward side in the side surface part 3B of case 3 as a mounting surface side. However, only some of the inlets 10 may be configured to include the inclined opening surface 10b.

（５）ケース３の内部における各機器のレイアウトは、前述の各実施形態で示したものに限らず、設置環境や機器の数量・種別等に応じて適宜に変更することができる。 (5) The layout of each device inside the case 3 is not limited to that shown in each of the above-described embodiments, and can be changed as appropriate according to the installation environment, the number and type of devices, and the like.

Ｗ被取付面
２センサ
３ケース
３Ｂ側面部
３Ｃ取付面（後面部）
７ａ繋ぎ部
１０流入口
１０ｂ傾斜開口面
１０ｃ取付面側開口縁（後面側開口縁）
１０ｄ流入案内面
１１横桟
１２縦桟 W Mounted surface 2 Sensor 3 Case 3B Side surface 3C Mounting surface (rear surface)
7a Connecting portion 10 Inflow port 10b Inclined opening surface 10c Mounting surface side opening edge (rear surface side opening edge)
10d Inflow guide surface 11 Horizontal beam 12 Vertical beam

Claims

A case having a mounting surface that can be attached to the mounting surface has a built-in sensor for detecting a detection target flowing into the case, and an inflow port that allows the detection target to flow into the case is connected to the mounting surface side. A detector having an opening formed in a side surface,
The side surface portion of the case is configured in a shape in which the mounting surface side is located on the inner side of the case from the opposite side,
The inflow port is configured to include an inclined opening surface in an inclined posture located on the inner side of the case toward the mounting surface side in the side surface portion of the case at least on the mounting surface side ,
The portion of the inclined opening surface facing the mounting surface side opening edge on the side opposite to the mounting surface is open from the position outside the mounting surface side opening edge in the inside / outside direction of the case. A detector provided with an inflow guide surface for guiding the detection target to the position inside the edge .

At the inflow port, a vertical beam extending in the perspective direction with respect to the mounting surface and a horizontal beam extending in the crossing direction are installed,
A portion corresponding to the crossing portion of the horizontal beam is formed to project outward from the case so that the outer surface of the horizontal beam is located on the outer side of the case with respect to the outer surface of the vertical beam at the intersection of the horizontal beam and the vertical beam. The detector according to claim 1 .

The case is configured in an outer shape having a plurality of corners on the side surface,
At each corner of the case, connecting portion connecting the mounting surface side of the case and its opposite side is formed, the inlet is or claim 1 is opened formed between adjacent end faces of the connecting portion to each other 2. The detector according to 2 .