JPS5926989B2 - photoelectric smoke detector - Google Patents
photoelectric smoke detectorInfo
- Publication number
- JPS5926989B2 JPS5926989B2 JP53068543A JP6854378A JPS5926989B2 JP S5926989 B2 JPS5926989 B2 JP S5926989B2 JP 53068543 A JP53068543 A JP 53068543A JP 6854378 A JP6854378 A JP 6854378A JP S5926989 B2 JPS5926989 B2 JP S5926989B2
- Authority
- JP
- Japan
- Prior art keywords
- smoke
- space
- smoke detector
- hole
- photoelectric smoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Description
【発明の詳細な説明】
この発明は、器具本体内部の感煙部に侵入して来た煙に
起因する散乱光によつて煙感知動作を行なう光電式煙感
知器に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photoelectric smoke detector that performs a smoke sensing operation using scattered light caused by smoke that has entered a smoke sensing section inside a device body.
この発明は、器具本体の下面及び側面から器具本体内部
の感煙部に導入する煙の流れた円滑に行なうことができ
る光電式煙感知器を得ることを目的としている。SUMMARY OF THE INVENTION An object of the present invention is to provide a photoelectric smoke detector that allows smoke to flow smoothly from the bottom and side surfaces of the device body to the smoke-sensing section inside the device body.
即ちこの発明は、器具本体内の感煙部の下側に設置され
た波状ラビリンスに囲まれた空間部内にその空間部を放
射状に仕切る複数枚の仕切板を設置し、その仕切板の放
射状設置中心を介して前記空間部に連通する孔を有する
と共に、その孔の中心に向つて凹んで傾斜する形状を有
する円錐状ガイドを、前記空間部の下側に設置した光電
式煙感知器に関する。That is, the present invention installs a plurality of partition plates that radially partition the space in a space surrounded by a wavy labyrinth installed below a smoke-sensing part in the device main body, and radially installs the partition plates. The present invention relates to a photoelectric smoke detector in which a conical guide having a hole communicating with the space through the center and having a concave and inclined shape toward the center of the hole is installed below the space.
この発明の実施例を図面にもとづいて説明する。Embodiments of the invention will be described based on the drawings.
図面は光電式煙感知器の断面正面図を示したものである
。この図において１は光電式煙感知器の器具本体であつ
て、その器具本体１の内部には感煙部２を有しており、
その感煙部２の下側に波状ラビリンス３で囲まれて煙導
入路５、５、５・・・に連通する空間部４を有している
。６、６、６・・・は空間部４内を放射状に仕切る複数
枚の仕切板であつて、その放射状設置中心Ｔを介して前
記空間部４に連通する孔９を有する円錐状ガイド８を設
けており、その円錐状ガイド８は孔９の中心に向つて凹
んだ形状の円錐状を形成している。The drawing shows a cross-sectional front view of a photoelectric smoke detector. In this figure, 1 is the main body of a photoelectric smoke detector, and the inside of the main body 1 has a smoke sensing part 2.
It has a space 4 surrounded by a wavy labyrinth 3 on the lower side of the smoke sensing part 2 and communicating with smoke introduction paths 5, 5, 5, . . . . 6, 6, 6... are a plurality of partition plates that radially partition the inside of the space 4, and a conical guide 8 having a hole 9 communicating with the space 4 through the radial installation center T thereof. The conical guide 8 has a conical shape concave toward the center of the hole 9.
次にこの発明の動作状態を説明する。Next, the operating state of this invention will be explained.
火災により発生した煙の一部は、器具本体１の側面から
波状ラビリンス３を通過したのち、矢印Ｘに示すように
仕切板６によつてそのまま反対側の波状ラビリンス３を
通過して器具本体１外に流出することがなく、感煙部２
の方向に導かれ、又その煙の他の一部は、矢印Ｙに示す
ように器具本体１の底面から円錐状ガイド８の凹状面に
沿つて孔９の方向に流れて集められることになり、その
孔９を通過して放射状中心Ｔを介して感煙部２の方向に
導かれる。A part of the smoke generated by the fire passes through the wavy labyrinth 3 from the side of the appliance body 1, and then passes through the wavy labyrinth 3 on the opposite side by the partition plate 6 as shown by arrow X, and returns to the appliance body 1. No leakage outside, smoke sensing part 2
The other part of the smoke flows from the bottom of the device body 1 along the concave surface of the conical guide 8 toward the hole 9 and is collected as shown by arrow Y. , passing through the hole 9 and guided in the direction of the smoke sensing section 2 via the radial center T.
このように感煙部２に導かれた煙によつて光は散乱現象
をおこし、この散乱光により煙感知器は感煙動作を行な
うのである。The smoke guided to the smoke sensing section 2 causes a light scattering phenomenon, and this scattered light causes the smoke detector to perform a smoke sensing operation.
以上のようにこの発明によれば、火災により発生した煙
は、煙感知器の器具本体の側面及び底面から空間部を通
つて感煙部に導入されることになり、器具本体の側面及
び底面の双方から来た煙を感煙部に急速にしかも円滑に
導くことができて煙感知動作の応答性が一段と向上する
効果がある。As described above, according to the present invention, smoke generated by a fire is introduced into the smoke sensing part from the side and bottom surfaces of the device body of the smoke detector through the space, and The smoke coming from both sides can be guided quickly and smoothly to the smoke sensing section, which has the effect of further improving the responsiveness of the smoke sensing operation.
図面はこの発明に係る光電式煙感知器の実施例を示す断
面正面図である。
１は器具本体、２は感煙部、３は波状ラビリンス、４は
空間部、５は煙導入路、６は仕切板、７は仕切板の放射
状設置中心、８は円錐状ガイド、９は孔。The drawing is a sectional front view showing an embodiment of a photoelectric smoke detector according to the present invention. 1 is the device main body, 2 is the smoke sensing part, 3 is the wavy labyrinth, 4 is the space, 5 is the smoke introduction path, 6 is the partition plate, 7 is the radial installation center of the partition plate, 8 is the conical guide, 9 is the hole .
Claims (1)
ンスに囲まれた空間部内に、その空間部を放射状に仕切
る複数枚の仕切板を設置し、その仕切板の放射状設置中
心を介して前記空間部に連通する孔を有すると共に、そ
の孔の中心に向つて凹んで傾斜する形状を有する円錐状
ガイドを、前記空間部の下側に設置した光電式煙感知器
。1 Install multiple partition plates that radially partition the space in a space surrounded by a wavy labyrinth installed below the smoke sensing part in the device body, and A photoelectric smoke detector comprising: a conical guide having a hole that communicates with the space, and a conical guide that is concave and inclined toward the center of the hole, installed below the space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53068543A JPS5926989B2 (en) | 1978-06-06 | 1978-06-06 | photoelectric smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53068543A JPS5926989B2 (en) | 1978-06-06 | 1978-06-06 | photoelectric smoke detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54159279A JPS54159279A (en) | 1979-12-15 |
| JPS5926989B2 true JPS5926989B2 (en) | 1984-07-02 |
Family
ID=13376763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53068543A Expired JPS5926989B2 (en) | 1978-06-06 | 1978-06-06 | photoelectric smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5926989B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59154639U (en) * | 1983-03-31 | 1984-10-17 | ホーチキ株式会社 | Darkroom structure of scattered light smoke detector |
| JP5325397B2 (en) * | 2007-06-19 | 2013-10-23 | パナソニック株式会社 | smoke detector |
| JP5637718B2 (en) * | 2010-03-31 | 2014-12-10 | 能美防災株式会社 | Photoelectric smoke detector |
| JP7364342B2 (en) * | 2019-02-26 | 2023-10-18 | 能美防災株式会社 | Smoke detectors |
| CN110838217B (en) * | 2019-11-27 | 2025-09-26 | 吴雪丹 | Photoelectric smoke fire alarm detection component and photoelectric smoke fire alarm |
-
1978
- 1978-06-06 JP JP53068543A patent/JPS5926989B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54159279A (en) | 1979-12-15 |
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