JPS6324694U - - Google Patents
Info
- Publication number
- JPS6324694U JPS6324694U JP11560886U JP11560886U JPS6324694U JP S6324694 U JPS6324694 U JP S6324694U JP 11560886 U JP11560886 U JP 11560886U JP 11560886 U JP11560886 U JP 11560886U JP S6324694 U JPS6324694 U JP S6324694U
- Authority
- JP
- Japan
- Prior art keywords
- smoke detector
- circuit
- alarm function
- dirty
- input voltage
- 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.)
- Pending
Links
- 239000000779 smoke Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Description
第１図は本考案の基本的構成を示す図、第２図
は本考案の更に具体的な一実施例回路構成図、第
３図は煙感知器の構造例の説明図、第４図はダー
テイアラーム機能付き光電式煙感知器の基本的な
回路構成図、第５図はダーテイアラーム機能付き
煙感知器における感度劣化時の特性と初期特性を
対比して示すグラフ、第６図は感知器の使用例の
説明図である。
（符号の説明）、１……発光回路、１０……発
光素子、２……受光回路、２０……受光素子、３
……煙信号送出回路、４……ダーテイアムラーム
送出回路、５……入力電圧検出回路、６……定電
圧回路。
Fig. 1 is a diagram showing the basic configuration of the present invention, Fig. 2 is a circuit configuration diagram of a more specific embodiment of the invention, Fig. 3 is an explanatory diagram of a structural example of a smoke detector, and Fig. 4 is a diagram showing the basic configuration of the present invention. The basic circuit configuration diagram of a photoelectric smoke detector with a dirty alarm function. Figure 5 is a graph comparing the characteristics of a smoke detector with a dirty alarm function when the sensitivity deteriorates and the initial characteristics. Figure 6 is a graph showing the initial characteristics of a smoke detector with a dirty alarm function. It is an explanatory view of an example of use of a sensor. (Explanation of symbols), 1... Light emitting circuit, 10... Light emitting element, 2... Light receiving circuit, 20... Light receiving element, 3
...Smoke signal sending circuit, 4...Dirty amram sending circuit, 5...Input voltage detection circuit, 6...Constant voltage circuit.
Claims (1)
い所定レベルまで低下した時には警報信号を発生
するようにされたダーテイアラーム機能付き光電
式煙感知器において、 上記光電式煙感知器に設けられた定電圧回路の
入力側に、入力電圧検出回路を設け、この入力電
圧検出回路の検出電圧が基準レベルまで低下した
時には、スイツチング手段の駆動を不能にするよ
うに構成したダーテイアラーム機能付き光電式煙
感知器。[Scope of Claim for Utility Model Registration] In a photoelectric smoke detector with a dirty alarm function that generates an alarm signal when the output of the light receiving circuit drops to a predetermined level lower than the level when the smoke concentration is zero, An input voltage detection circuit is provided on the input side of the constant voltage circuit provided in the type smoke detector, and is configured to disable the driving of the switching means when the detection voltage of the input voltage detection circuit drops to a reference level. Photoelectric smoke detector with dirty alarm function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11560886U JPS6324694U (en) | 1986-07-28 | 1986-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11560886U JPS6324694U (en) | 1986-07-28 | 1986-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6324694U true JPS6324694U (en) | 1988-02-18 |
Family
ID=30999420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11560886U Pending JPS6324694U (en) | 1986-07-28 | 1986-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6324694U (en) |
-
1986
- 1986-07-28 JP JP11560886U patent/JPS6324694U/ja active Pending
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