JPH02119787U - - Google Patents
Info
- Publication number
- JPH02119787U JPH02119787U JP2671289U JP2671289U JPH02119787U JP H02119787 U JPH02119787 U JP H02119787U JP 2671289 U JP2671289 U JP 2671289U JP 2671289 U JP2671289 U JP 2671289U JP H02119787 U JPH02119787 U JP H02119787U
- Authority
- JP
- Japan
- Prior art keywords
- pair
- lines
- fire
- terminals
- sensor base
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fire Alarms (AREA)
Description
図面は、この考案の火災警報装置の一実施例を
示す回路ブロツク図である。
１……受信機、２１〜２ｎ……火災感知器、３
１〜３ｎ……感知器ベース、４，５……線路、６
１〜６ｎ……ダイオード、７……コンデンサ、１
０……直流電源、１１……リレー、１２……リレ
ー１１の常開接点、１３……スイツチ回路、１４
，１６……警報器、１５……検出回路。
The drawing is a circuit block diagram showing one embodiment of the fire alarm system of this invention. 1...Receiver, 21-2n...Fire detector, 3
1~3n...Sensor base, 4,5...Line, 6
1~6n...Diode, 7...Capacitor, 1
0...DC power supply, 11...Relay, 12...Normally open contact of relay 11, 13...Switch circuit, 14
, 16... Alarm, 15... Detection circuit.
Claims (1)
通する複数の火災感知器と、該火災感知器が接続
されることにより導通し、脱落することにより不
導通になる２つの端子を設けた感知器ベースと、
該感知器ベースの２つの端子を介して送り配線さ
れる一対の線路と、該一対の線路の終端に接続さ
れたコンデンサと、上記一対の線路間に間歇的に
遮断される電源を供給し、上記一対の線路の電流
または、電圧の変化から上記火災感知器の動作及
び上記一対の線路の断線を検出し警報表示する受
信機と、上記感知器ベースの２つの端子間に電源
に対して順方向に接続されたダイオードとを具備
したことを特徴とする火災警報装置。 A sensor base provided with a plurality of fire detectors that conduct with low impedance when a fire phenomenon is detected, and two terminals that conduct when the fire detectors are connected and become non-conductive when they fall off;
A pair of lines routed through two terminals of the sensor base, a capacitor connected to the terminal ends of the pair of lines, and a power source that is intermittently interrupted between the pair of lines, A receiver that detects the operation of the fire detector and a disconnection of the pair of lines based on changes in the current or voltage of the pair of lines and displays an alarm, and a power supply connected between the two terminals of the sensor base. A fire alarm device characterized by comprising a diode connected in the direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2671289U JPH0624953Y2 (en) | 1989-03-10 | 1989-03-10 | Fire alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2671289U JPH0624953Y2 (en) | 1989-03-10 | 1989-03-10 | Fire alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02119787U true JPH02119787U (en) | 1990-09-27 |
| JPH0624953Y2 JPH0624953Y2 (en) | 1994-06-29 |
Family
ID=31248587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2671289U Expired - Lifetime JPH0624953Y2 (en) | 1989-03-10 | 1989-03-10 | Fire alarm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624953Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102666090B1 (en) * | 2022-09-07 | 2024-05-14 | 열두방재(주) | Fire detector having fire alarm function and fire alarm apparatus |
-
1989
- 1989-03-10 JP JP2671289U patent/JPH0624953Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624953Y2 (en) | 1994-06-29 |
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