201237811 ,)ix 六、發明說明： 【發明所屬之技術領域】 種藉由感測煙來偵測火災等的煙感 本發明是有關於一 測器。 【先前技術】 先前以來’設置有對火災等時的煙進行感測的煙感測 盗。此煙感測器在周圍設有多個迷宮（labyrimh)壁的煙 感測空間内具有發光部以及受光部，利用受 自鄰接的迷宮壁間流人煙感測區域内的煙 因 ，後，㈣受光騎接㈣缝職成技信號，=光 仏號超過某臨限值時發出火炎警報。 圖6(a)〜圖6(b)表示習知的煙感測器。煙感測器6是將 2體罩（bodycover) 60 與感測器罩（sens〇rc〇ver) 6ι 组 =而構成。於域罩6G的㈣收容有電路基板，於感測器 的内部收容有防蟲罩62或光學基台63等，其中防蟲 成62防止轰等侵人煙感測區域，光學基台^具備發光部' 1光部等的光學構件及迷宮壁。❹彳料61是以有底圓筒 ，狀㈣成’而為了防止好（user)的’手指接觸到收容 f内部的光學零件，於側面形成有上下方向外廓結構支持 4 61a與橫方向外廓結構支持部61b。 而且，已知有一種煙感測器，其採用流入煙感測室内 的煙易被引導至感煙區域的結構（例如，參照專利文獻沙 先前技術文獻 專利文獻 4 201237811. HXOZJpif [專利文獻1]曰本專利特開2008_31073()號公報 觸到Ϊ t於上述煙感測器6中，為了防止用戶的手指接 成上下内部的光學零件’必須於感測器罩61的側面形 部61b。2外廓結構支持部61a以及橫方向外廓結構支持 “題，:'具ί此種結構的感測器罩61的製造中存在下述 上升（cl舄要複雜的模具，從而導致煙感測器6的成本 C〇St Up )。 支持苦於感測11罩61的侧面設置上τ方向外廓結構 槿古I主却a或橫方向外廓結構支持部61b等的多個外廓結 罩貝4還存在下述問題，即：會妨礙煙流入感測器 感度^的煙感測區域，從而無法保持煙感測器6的煙偵測 【發明内容】 種煙是有餅上絲題而完成，其目的在於提供— ’實現製造感㈣罩或主體罩時的成本削減， 且不會妨礙煙朝向煙感測區域流動。 、為了達成上述目的，本發明是一種煙感測器，包 煙感測器部’於周圍設有多個逑宮壁，藉由接收因自迷宮 土間训_入的煙所引起的散射光來感測煙；感測器罩，至少 =述煙感測器部收容於内部；以及主體罩，連續於感‘ 盗罩而設，此煙感測器的特徵在於，上述感測器罩為有底 圓筒狀，於感測器罩的側面交替形成有多個僅上下 沾 外殼結構支持部以及開口部。 的 於上述煙感測器中，較佳的是，上述感測器罩以及上 201237811 41»ZDpif 支持部是以用戶的手指I =的疋’相鄰的上述外廓結構 部的零件的間隔而形成Γ 到收容在上述感測器罩内 於上述煙感測器中，較佳 持部中的-部分接觸上述煙上述躲構支 述煙感測器部。 邱如部，另〆部分不接觸上 於上述煙感測器中，軔估沾θ 的上述外聽構支持雜不’接針述域測器部 廓結構支持部是交替地形成。4煙感—部的上述外 (發明的效果） 右广= 康本發明的煙感測器，由於採用下述結構，即，於 2圓同狀的感測器罩的側面交替形成有多個僅上下方向 ^結構支持部以及開D部，因此可簡化感測器罩的模 具而實現製造時的成本削減。而且，由於感測器罩側面的 外廓結構支持部巾的-部分接觸煙感㈣部而另一部分不 接觸煙感測H部，因此可減少㈣結構支持部妨礙煙朝向 煙感測區域流動的情況。 【實施方式】 以下，參照構成本說明書的一部分的附圖來更詳細地 說明本發明的實施形態。在所有附圖中，對於相同或類似 的部分標註相同的參照符號並省略說明。 (實施形態） 參照附圖來說明本發明的實施形態的煙感測器。如圖 201237811. 1所示，煙感測器1是如下所述的裝置，即，接收自多個 迷呂壁的空隙入感煙區域的煙的散射光，將受光量轉換 成受光信號’當此受光信號超過臨限值時進行火災警報。 煙感測器1的外廢包含底座（base ) 1 〇、感測哭罩11以及 主體罩12。此底座10由大致圓盤狀的樹脂等形成，且為 了螺固於例如天花板面2而於設置面側的兩處形成有螺絲 孔。 對於此煙感測器1的内部結構，參照圖2來進行說明。 煙感測器1是於感測器罩u以及主體罩12的内部收容電 路基板13、光學基台（煙感測器部）14 '防蟲罩15以及 揚聲器（speaker) 16等多個零件而構成。 月搭11罩U於内部收容有光學基台14 '防蟲罩15以 曰，二、、^„16，具有作為保護這些構件的保護罩的作用。而 多個;堇:形成為有底圓筒狀，於其側面交替形成有 方向的外殼結構支持❹a以及開口部nb。201237811,) ix VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a detector by sensing smoke to detect smoke or the like. [Prior Art] A smoke sensory thief that senses smoke at the time of a fire or the like has been set up. The smoke sensor has a light-emitting portion and a light-receiving portion in a smoke sensing space provided with a plurality of labyrimh walls, and the smoke is detected in the area of the human smoke from the adjacent labyrinth wall. (4) Receiving the light signal by the light riding (4), and the fire signal is issued when the light number exceeds a certain threshold. 6(a) to 6(b) show a conventional smoke sensor. The smoke sensor 6 is constructed by combining a body cover 60 and a sensor cover (sens〇rc〇ver) 6ι. The circuit board is housed in the fourth cover of the domain cover 6G, and the insect cover 62 or the optical base 63 is housed inside the sensor, wherein the insect proofing 62 prevents the intrusion detecting area such as the bombardment, and the optical base is provided. Light-emitting portion '1 optical member such as a light portion and a labyrinth wall. The material 61 is a bottomed cylinder, and is shaped like a fourth. In order to prevent a user's finger from coming into contact with the optical component inside the housing f, an up-and-down outer peripheral structure is formed on the side surface to support the 4 61a and the lateral direction. The structure supporting portion 61b. Further, there is known a smoke sensor that uses a structure in which smoke flowing into the smoke sensing chamber is easily guided to the smoke detecting region (for example, refer to Patent Document No. P. Patent Document 4 201237811. HXOZJpif [Patent Document 1] In the above-described smoke sensor 6, in order to prevent the user's fingers from being connected to the upper and lower inner optical parts, it is necessary to be in the side surface portion 61b of the sensor cover 61. The outer structure support portion 61a and the lateral outer structure support "there are:" the following rises in the manufacture of the sensor cover 61 having such a structure (c) a complicated mold, thereby causing a smoke sensor The cost of 6 is C〇St Up. Supporting the side surface of the 11 cover 61 is provided with a plurality of outer contours of the outer surface of the τ-direction outer structure, the main I, the a or the lateral outer structural support portion 61b, etc. There is also a problem that the smoke sensing area that hinders the flow of the smoke into the sensor, and thus the smoke sensor of the smoke sensor 6 cannot be maintained. [Inventive content] The cigarette is completed on the cake. Its purpose is to provide - 'realize manufacturing sense (four) cover or main The cost of the cover is reduced, and does not hinder the flow of the smoke toward the smoke sensing area. In order to achieve the above object, the present invention is a smoke sensor, and the package sensor portion is provided with a plurality of walls of the palace. Sensing the smoke by receiving scattered light caused by the smoke from the labyrinth; the sensor cover, at least = the smoke sensor portion is housed inside; and the body cover, continuous to the sense of the hood The smoke sensor is characterized in that the sensor cover has a bottomed cylindrical shape, and a plurality of upper and lower outer shell structure supporting portions and an opening portion are alternately formed on the side surface of the sensor cover. In the sensor, it is preferable that the sensor cover and the upper 201237811 41»ZDpif support portion are formed by the interval between the components of the adjacent outer structural portion of the user's finger I=疋' In the above-mentioned sensor cover, the portion of the preferred holding portion contacts the smoke to hide the smoke sensor portion. In the sensor, the above-mentioned external auditory support of the θ is estimated to be miscellaneous. The pin-receiving section structure support portion is alternately formed. The above-mentioned outer portion of the smoke-sensing portion (the effect of the invention) is right-handed; the smoke sensor of the present invention has the following structure, that is, Since the two sides of the sensor cover of the same shape are alternately formed with a plurality of only the vertical support structure and the open D portion, the mold of the sensor cover can be simplified to achieve cost reduction during manufacturing. The outer structure of the side surface of the cover supports the portion of the portion that is in contact with the smoke (four) portion and the other portion does not contact the smoke sensing portion H, thereby reducing (4) the structural support portion hinders the flow of the smoke toward the smoke sensing region. Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings which form a part of this specification. In all the drawings, the same or similar components are denoted by the same reference numerals, and the description is omitted. (Embodiment) A smoke sensor according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 201237811. 1, the smoke sensor 1 is a device that receives the scattered light of the smoke from the plurality of walls of the wall into the smoke-sensing area, and converts the amount of received light into a light-receiving signal. A fire alarm is issued when this received light signal exceeds the threshold. The outer waste of the smoke sensor 1 includes a base 1 , a sensing crying cover 11 and a body cover 12 . The base 10 is formed of a substantially disk-shaped resin or the like, and is screwed to, for example, the ceiling surface 2, and screw holes are formed at two places on the installation surface side. The internal structure of this smoke sensor 1 will be described with reference to Fig. 2 . The smoke sensor 1 is a plurality of components such as the sensor cover u and the inside of the body cover 12 that house the circuit board 13 , the optical base (smoke sensor unit) 14 'the insect cover 15 and the speaker 16 . Composition. The moon cover 11 U is internally housed with an optical base 14' insect-proof cover 15 for 曰, 、, 、16, which functions as a protective cover for protecting these members. A plurality of 堇: formed as a bottomed circle The tubular shape is alternately formed with a directional outer casing structure ❹a and an opening portion nb.
的門口 ^煙ΐϊ此開α部Ub並穿過防蟲罩15的防蟲網 的開口而侵入光學基A 主雕罢π 0 上的煙感測空間内。 拉 '' 邹收容有電路基板13，並且夢由一邊 接近底座10-邊朝_ :电路巷枚並且耩由遠 且，本實郷態巾，向·而與総1G結合。而 一體。感測器罩以器罩11以及主體罩12疋形成為 以及絕緣触形成，m、f體罩12是的料材的金屬部 述金屬部的周圍。迷絕緣樹脂被塗佈（coating)於上 電路基板13安萝古 發光二極體（diode)或光二極.體 201237811 4ISZ5pif (Ph〇t〇di〇de)等光學元件及微電腦（microcomputer)等 的電路零件，所额電腦紐技錢， 過臨限值時輸出火災警報信號。 又尤抬就起 业沾t基I 14:置於電路基板13上，且具有大致圓板 狀的底板以及械於底板的騎的周壁，於底板的上表面 設有發光部以及受光部。而，於光學基台14上，如後述 般以沿著駿的方式而設有多個迷宮壁，由上述多個迷宮 壁所圍成的部分成為煙感測空間。為了將自感測器罩u 的側面侵人_引導至位於煙感啦間的大致巾央部的煙 感測區域，並且為了遮倾人煙❹彳區域的外部光迷宮 壁在煙感測空間側的内方彎曲成俯視為大致「〈」字形狀。 另外，光學基台14上形成的發光部以及受光部收容安裝在 電路基板13上表面的發光二極體以及光二極體。 防蟲罩15採用具有防蟲網以免蟲或塵埃等進入煙感 測區域内的結構，其下端部與光學基台14的周壁嵌合。而 且，揚聲器16嵌合於防蟲罩15的上表面。揚聲器16°具有 發出警報聲等的功能，所述警報聲用於告知已偵測到火災。 接下來’對於煙感測器1的感測器罩U的外廓結構， 參照圖3來進行說明。感測器罩11為有底圓筒狀，於其側 面父替形成有多個僅上下方向的外殼結構支持部lla以及 開口部lib。這是因為，若於感測器罩η上形成上下方向 以及橫方向的外廓結構支持部，則成為芯材的金屬成型用 的模具會變得複雜，結果將成為煙感測器丨的成本上升的 主要原因。因而，於本實施形態中，於感測器罩u的侧面， 8 201237811 ， 形成多個僅上下方向的外廓結構支持部lla，而不形成橫 方向的外廓結構支持部，藉此可簡化感測器罩u的^且二 貫現製造時的成本削減。 w' 而且，藉由採用上述結構的感測器罩u，可簡化模具 的結構，亦可一體化地製造感測器罩u以及主體罩if。、 其結果’可實現製造煙感測器1時的成本削減。 接下來，對於形成在感測器罩11側面的上下方向外廓 結構支持部lla的配置以及形狀，參照圖4來進行說明。 於感測器罩11的内側，嵌合有光學基台14，所述光學基 台14在周圍設有多個迷宮壁i4a的煙感測空間14b内設置 發光部14c’利用受光部14d來接收自所述多個迷宮壁Ma 的空隙流入煙感測空間14b的煙的散射光。 感測器罩11的側面所形成的相鄰的上下方向外廓結 構支持部lla是以用戶的手指無法觸碰到收容在上述感剛 盗罩内部的零件的間隔而形成。於本實施形態中，如圖4 所示配置成：相鄰的外廓結構支持部lla的半徑方向線所 成的相位差α為22.5度。 而且’感測器罩11構成為，形成在側面的多個外廓結 構支持部lla中的一部分接觸光學基台14，另一部分外廓 結構支持部lla，不接觸光學基台14。圖4中，表示了接觸 光學基台14的外廓結構支持部lla與不接觸光學基台14 的外廓結構支持部lla，交替形成的情況。這是為了防止外 靡結構支持部lla妨礙煙侵入煙感測空間14b而導致煙感 测器1的煙偵測能力下降。 201237811fThe doorway ^the smoke opening the α portion Ub and passing through the opening of the insect net of the insect cover 15 to invade the smoke sensing space on the optical base A main sculpture π 0 . Pull '' Zou accommodates the circuit board 13 and dreams from one side close to the base 10 side toward the _: the circuit lanes and the cymbals are far apart, and the actual squatting towel is combined with the 総 1G. And one. The sensor cover is formed by the cover 11 and the body cover 12, and is formed by an insulating contact, and the m, f body cover 12 is a metal portion around the metal portion of the material. The insulating resin is coated on an optical element such as an upper circuit board 13 or an optical diode or a photodiode. Circuit parts, the amount of computer money, when the threshold is exceeded, the fire alarm signal is output. Further, the substrate 14 is placed on the circuit board 13, and has a substantially circular plate-shaped bottom plate and a peripheral wall of the rider attached to the bottom plate, and a light-emitting portion and a light-receiving portion are provided on the upper surface of the bottom plate. On the optical base 14, a plurality of labyrinth walls are provided along the front side as described later, and a portion surrounded by the plurality of labyrinth walls serves as a smoke sensing space. In order to invade the side of the sensor cover u to the smoke sensing area of the central portion of the towel, and to shield the external light labyrinth wall of the human smoke area in the smoke sensing space The inner side of the side is curved to have a substantially "<" shape in plan view. Further, the light-emitting portion and the light-receiving portion formed on the optical base 14 accommodate the light-emitting diodes and the photodiodes mounted on the upper surface of the circuit board 13. The insect-proof cover 15 has a structure having an insect-proof net to prevent insects or dust from entering the smoke sensing area, and a lower end portion thereof is fitted to the peripheral wall of the optical base 14. Further, the speaker 16 is fitted to the upper surface of the insect cover 15. The speaker 16° has a function of sounding an alarm or the like for notifying that a fire has been detected. Next, the outer structure of the sensor cover U of the smoke sensor 1 will be described with reference to Fig. 3 . The sensor cover 11 has a bottomed cylindrical shape, and a plurality of outer casing support portions 11a and openings lib which are only in the vertical direction are formed on the side surface. This is because if the outer structure support portion is formed in the vertical direction and the lateral direction on the sensor cover η, the mold for metal forming of the core material becomes complicated, and as a result, the cost of the smoke sensor is reduced. The main reason for the rise. Therefore, in the present embodiment, on the side surface of the sensor cover u, 8 201237811, a plurality of outer structure support portions 11a in the vertical direction are formed, and the outer structure support portion in the lateral direction is not formed, thereby simplifying The cost of the sensor cover u is reduced during the manufacturing process. w' Moreover, by adopting the sensor cover u of the above structure, the structure of the mold can be simplified, and the sensor cover u and the body cover if can be integrally manufactured. The result 'can reduce the cost when manufacturing the smoke sensor 1. Next, the arrangement and shape of the up-and-down outer structure supporting portion 11a formed on the side surface of the sensor cover 11 will be described with reference to Fig. 4 . An optical base 14 is fitted to the inner side of the sensor cover 11, and the optical base 14 is provided with a light-emitting portion 14c' in the smoke sensing space 14b in which a plurality of labyrinth walls i4a are provided, and is received by the light-receiving portion 14d. The scattered light of the smoke flowing into the smoke sensing space 14b from the gap of the plurality of labyrinth walls Ma. The adjacent up-and-down direction outer structural support portion 11a formed on the side surface of the sensor cover 11 is formed by the interval at which the user's fingers cannot touch the components housed in the inner hood. In the present embodiment, as shown in Fig. 4, the phase difference α formed by the radial direction lines of the adjacent outer structure supporting portions 11a is 22.5 degrees. Further, the sensor cover 11 is configured such that a part of the plurality of outer-structure supporting portions 11a formed on the side faces the optical base 14 and the other portion of the outer-structure supporting portion 11a does not contact the optical base 14. Fig. 4 shows a case where the outer structure supporting portion 11a contacting the optical base 14 and the outer structure supporting portion 11a not contacting the optical base 14 are alternately formed. This is to prevent the outer structure supporting portion 11a from interfering with the intrusion of smoke into the smoke sensing space 14b, resulting in a decrease in the smoke detecting ability of the smoke sensor 1. 201237811f
-r A 參照圖5(a)〜圖5(b)來說明上述情況。圖5 (a)表示 使用本實施形態的感測器罩11以及光學基台14時的煙感 測空間周邊部的氣壓分布。另一方面，圖5 (b)表示使用 具有先前的外廓結構支持部21a的配置以及形狀的感測器 罩21以及光學基台24時的煙感測空間周邊部的壓力分 布。於圖中，各箭頭Y1〜Y3表示來自感測器罩11、21側 面的空氣的流動Y1、光學基台14内的煙的路徑γ2、光學 基台24内的煙的路徑γ3。而且，圖中的灰白色的區域（高 壓區域3a)是氣壓比其他區域（低壓區域3b)更高的區域。 此種光學基台14的煙偵測空間周邊部的高壓區域 3a以及 低壓區域3b的邊界主要是基於外廓結構支持部11a、2la 的配置或形狀所決定，所述外廓結構支持部11a、21a位於 相對於煙的流動為銳角的位置。 並且可知的是，比起使用具有圖5 (b)所示的外廓結 構支持部21a的感測器罩21的情況，使用具有圖5 (a) 所示的外廓結構支持部lla、lla’的感測器罩u的情況下 的煙流入區域3c的氣壓差較小。因而，在使用感測器罩 11的圖5 (a)的情況下，煙的流動路徑Y2與低壓區域％ 隔開’煙到達煙感測空間後，在通過光學基台14的煙偵測 區域（中心附近）之前，煙難以流出至外部。其結果，可 防止煙感測器1的煙偵測能力下降。 另一方面’於圖5 ( b)所示的情況下，煙的流動路徑 Y3與低壓區域3b相對較近，如路徑Y3所示，在通過煙 偵測區域（中心附近）之前，煙便會流出至外部，從而導 201237811 ^flOZDpif 致煙感測益1的煙侦測能力下降。如此，藉由使用本實施 形態的感測器罩11 ’能儘可能減少外廓結構支持部Ua、 11 a'妨礙煙侵入煙感測空間的情況’從而可防止煙感測器i 的煙偵測能力下降。 另外’防蟲罩15中所配備的防蟲網亦會對流體朝向光 學基台14的流入造成阻力。因此’存在下述情況：到達光 學基台14侧面的流動因防蟲網而受到阻力，從而不流入煙 感測空間14b。並且，若使感測器罩η的外廓結構支持部 僅包含不接觸防蟲網的外廓結構支持部i丨a，以確保煙的流 入性’則會引起結構強度、設計（design )性的偏重。於 本實施形態中，藉由交替設置接觸具有煙偵測空間的光學 基台14的外廓結構支持部ua與不接觸此光學基台14的 外廓結構支持部11a'，可在保持結構強度、設計性的同時 癌保煙的流入性。 如上所述，本實施形態的煙感測器丨的感測器罩u 為有底圓筒狀，於其側面交替形成有多個僅上下方向的外 殼結構支持部11a以及開口部llb。因此，可簡化製造感 測器罩11時的模具，可使感測器罩丨丨以及主體罩12 一體 化。因而，可實現製造時的成本削減。 而且’藉由使感測器罩11的相鄰的上下方向外廓結構 支持部11a形成為規定間隔以下，可防止用戶的手指觸碰 到收容在感測器罩11内部的光學零件。再者，由於使接觸 光學基台14的外廓結構支持部Ua與不接觸光學基台14 的外廓結構支持部lla’交替形成，因此可有效地引導煙朝 11 201237811 41825pif 向光學基台14上的煙感測空_流動’亦可 測器1的結構強度與設計性。又，本發明並不限於^述實 =^的結構，在不變更發明的主旨的範圍内可進行各種 以上 對本發明的較佳實施形態進行了說明，但本 明並不限於該補定的實施雜，可進行不脫離申請專^ 摩巳圍的乾疇的多種變更及變形，該些變更 發明的範疇内。 夂办白屬於本 【圖式簡單說明】 圖1是本發明的實施形態的煙感測器的斜視圖。 圖2是本發明的實施形態的煙感測器的分解斜視圖。 圖3是本發明的實施形態的煙感測器的侧面圖。-r A The above description will be described with reference to Figs. 5(a) to 5(b). Fig. 5 (a) shows the air pressure distribution in the peripheral portion of the smoke sensing space when the sensor cover 11 and the optical base 14 of the present embodiment are used. On the other hand, Fig. 5(b) shows the pressure distribution of the peripheral portion of the smoke sensing space when the sensor cover 21 and the optical base 24 having the arrangement and shape of the previous outer structure supporting portion 21a are used. In the figure, arrows Y1 to Y3 indicate the flow Y1 of the air from the side faces of the sensor covers 11, 21, the path γ2 of the smoke in the optical base 14, and the path γ3 of the smoke in the optical base 24. Further, the grayish white region (high pressure region 3a) in the drawing is a region where the air pressure is higher than the other regions (low pressure region 3b). The boundary between the high pressure region 3a and the low pressure region 3b of the peripheral portion of the smoke detecting space of the optical base 14 is mainly determined based on the arrangement or shape of the outer structure supporting portions 11a, 21a, the outer structure supporting portion 11a, 21a is located at an acute angle with respect to the flow of the smoke. Further, it is understood that the outer structure supporting portion 11a, 11a shown in Fig. 5(a) is used as compared with the case where the sensor cover 21 having the outer structure supporting portion 21a shown in Fig. 5(b) is used. The difference in air pressure of the smoke inflow region 3c in the case of the sensor cover u is small. Thus, in the case of FIG. 5(a) using the sensor cover 11, the flow path Y2 of the smoke is separated from the low pressure region %, after the smoke reaches the smoke sensing space, the smoke detecting area passing through the optical base 14 Before the (near the center), the smoke is difficult to flow out to the outside. As a result, the smoke detecting ability of the smoke sensor 1 can be prevented from being lowered. On the other hand, in the case shown in Fig. 5 (b), the flow path Y3 of the smoke is relatively close to the low pressure region 3b, as shown by the path Y3, before passing through the smoke detecting area (near the center), the smoke will be Flowing out to the outside, so that the smoke detection ability of the 201237811 ^flOZDpif smoke detection benefit 1 is reduced. Thus, by using the sensor cover 11' of the present embodiment, the outer structure supporting portions Ua, 11a' can be prevented from interfering with the smoke intrusion into the smoke sensing space, thereby preventing the smoke detector i from being smoked. The measurement capability is declining. Further, the insect net provided in the insect cover 15 also causes resistance to the inflow of the fluid toward the optical base 14. Therefore, there is a case where the flow reaching the side of the optical base 14 is subjected to resistance due to the insect net, so that it does not flow into the smoke sensing space 14b. Further, if the outer structure supporting portion of the sensor cover η includes only the outer structure supporting portion i丨a that does not contact the insect net, to ensure the inflow of the smoke, the structural strength and design are caused. The emphasis. In the present embodiment, the structural strength can be maintained by alternately providing the outer structure supporting portion ua contacting the optical base 14 having the smoke detecting space and the outer structural supporting portion 11a' not contacting the optical base 14. Designed at the same time the inflow of cancer to keep smoke. As described above, the sensor cover u of the smoke sensor 本 of the present embodiment has a bottomed cylindrical shape, and a plurality of outer casing support portions 11a and openings 11b in the vertical direction are alternately formed on the side surfaces thereof. Therefore, the mold for manufacturing the sensor cover 11 can be simplified, and the sensor cover and the main body cover 12 can be integrated. Therefore, cost reduction at the time of manufacture can be achieved. Further, by forming the adjacent vertical and horizontal outer structural support portions 11a of the sensor cover 11 at a predetermined interval or less, it is possible to prevent the user's fingers from touching the optical components housed inside the sensor cover 11. Furthermore, since the outer structure supporting portion Ua of the contact optical base 14 and the outer structure supporting portion 11a' not contacting the optical base 14 are alternately formed, the smoke can be effectively guided toward the optical base 14 of 201237811 41825pif. The smoke sensing air _ flow 'is also the structural strength and design of the detector 1. Further, the present invention is not limited to the configuration of the present invention, and various preferred embodiments of the present invention may be described without departing from the spirit and scope of the invention, but the present invention is not limited to the implementation of the present invention. Miscellaneous, it is possible to carry out various changes and deformations of the dry domain without departing from the application, and these modifications are within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a smoke sensor according to an embodiment of the present invention. Fig. 2 is an exploded perspective view of the smoke sensor of the embodiment of the present invention. Fig. 3 is a side view of the smoke sensor of the embodiment of the present invention.
圖4是表示本發明的實施形態的煙感測器的光風 (煙感測器部）的圖。 予土 D 圖5 (a)是本發明的實施形態的光學基台上的藉 體分析得出的壓力分布圖，圖5⑻是先前的煙 光學基台上的藉由流體分析得出的壓力分布圖。 、 圖ό (a)是習知的煙感測器的分解斜視圖，圖6 習知的煙感測器的側面圖。 ） 【主要元件符號說明】 1、6 :煙感測器 2 :天花板面 3a .南壓區域 3b :低壓區域 201237811. -τ 丄 〇 厶 3c :煙流入區域 10 :底座 11、 21、61 :感測器罩 11a、11a’、61a :上下方向外廓結構支持部 lib :開口部 12、 60 :主體罩 13 :電路基板 14、 24、63 :光學基台 14a :迷宮壁 14b:煙感測空間 14c :發光部 14d :受光部 15、 62 :防蟲罩 16 :揚聲器 21a :外廓結構支持部 61b :橫方向外廓結構支持部 α :相位差 Υ1 :來自感測器罩11、21側面的空氣的流動 Υ2 :光學基台14内的煙的路徑 Υ3 :光學基台24内的煙的路徑 13Fig. 4 is a view showing a light wind (smoke sensor unit) of the smoke sensor according to the embodiment of the present invention. Fig. 5(a) is a pressure distribution diagram obtained by the borrowing analysis on the optical base of the embodiment of the present invention, and Fig. 5(8) is a pressure distribution diagram obtained by fluid analysis on the previous smoke optical abutment. . Figure (a) is an exploded perspective view of a conventional smoke sensor, and Figure 6 is a side view of a conventional smoke sensor. [Description of main component symbols] 1, 6: Smoke sensor 2: Ceiling surface 3a. South pressure zone 3b: Low pressure zone 201237811. -τ 丄〇厶3c: Smoke inflow zone 10: Base 11, 21, 61: Sense Detector cover 11a, 11a', 61a: up-and-down direction outer structure support portion lib: opening portion 12, 60: body cover 13: circuit substrate 14, 24, 63: optical base 14a: labyrinth wall 14b: smoke sensing space 14c: light-emitting portion 14d: light-receiving portion 15, 62: insect-proof cover 16: speaker 21a: outer-structure supporting portion 61b: lateral outer-structure supporting portion α: phase difference Υ1: from the side surfaces of the sensor covers 11, 21 The flow of air Υ 2 : the path of the smoke in the optical abutment 14 Υ 3 : the path of the smoke in the optical abutment 24 13