JPS6222544U - - Google Patents
Info
- Publication number
- JPS6222544U JPS6222544U JP11390785U JP11390785U JPS6222544U JP S6222544 U JPS6222544 U JP S6222544U JP 11390785 U JP11390785 U JP 11390785U JP 11390785 U JP11390785 U JP 11390785U JP S6222544 U JPS6222544 U JP S6222544U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- storage
- constant voltage
- smoke
- transistor
- 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.)
- Granted
Links
- 239000000779 smoke Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Description
添付図は本考案の一実施例の蓄積型光電式煙感
知器のブロツク回路図である。
１は定電圧回路、２は電流制限回路、３は煙感
知回路、４は蓄積回路、Ｒは抵抗、Ｔｒはトラン
ジスタである。
The attached figure is a block circuit diagram of a storage type photoelectric smoke detector according to an embodiment of the present invention. 1 is a constant voltage circuit, 2 is a current limiting circuit, 3 is a smoke detection circuit, 4 is a storage circuit, R is a resistor, and Tr is a transistor.
Claims (1)
受け、間欠的に発光する発光素子の光を受光して
煙を感知すれば蓄積開始信号を発生する煙感知回
路と、上記定電圧回路の入力とアース間に設けら
れたスイツチング回路と、上記煙感知回路の蓄積
開始信号が入力されると或る一定の蓄積時間の後
に上記スイツチング回路を駆動するドライブ信号
を発生する蓄積回路とを備えた蓄積型光電式煙感
知器において、上記定電圧回路の出力とアース間
に抵抗とトランジスタの直列回路を接続し、該ト
ランジスタを上記蓄積時間の間オンさせることを
特徴とする蓄積型光電式煙感知器。 A smoke detection circuit receives voltage supply through a constant voltage circuit and a current limiting circuit, receives light from a light emitting element that emits light intermittently, and generates an accumulation start signal when smoke is detected, and an input to the constant voltage circuit. and a storage circuit that generates a drive signal that drives the switching circuit after a certain storage time when the storage start signal of the smoke sensing circuit is input. A storage type photoelectric smoke detector, characterized in that a series circuit of a resistor and a transistor is connected between the output of the constant voltage circuit and the ground, and the transistor is turned on for the storage time. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11390785U JPH074717Y2 (en) | 1985-07-25 | 1985-07-25 | Storage photoelectric smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11390785U JPH074717Y2 (en) | 1985-07-25 | 1985-07-25 | Storage photoelectric smoke detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6222544U true JPS6222544U (en) | 1987-02-10 |
| JPH074717Y2 JPH074717Y2 (en) | 1995-02-01 |
Family
ID=30996148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11390785U Expired - Lifetime JPH074717Y2 (en) | 1985-07-25 | 1985-07-25 | Storage photoelectric smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074717Y2 (en) |
-
1985
- 1985-07-25 JP JP11390785U patent/JPH074717Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH074717Y2 (en) | 1995-02-01 |
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