JPS6142121Y2 - - Google Patents
Info
- Publication number
- JPS6142121Y2 JPS6142121Y2 JP14336179U JP14336179U JPS6142121Y2 JP S6142121 Y2 JPS6142121 Y2 JP S6142121Y2 JP 14336179 U JP14336179 U JP 14336179U JP 14336179 U JP14336179 U JP 14336179U JP S6142121 Y2 JPS6142121 Y2 JP S6142121Y2
- Authority
- JP
- Japan
- Prior art keywords
- alarm
- gas leak
- voltage
- gas
- connection terminal
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、外部警報器用出力に３値の電圧を
供給することにより３種の信号を送ることができ
るようにしたガスもれ警報装置に関するものであ
る。[Detailed description of the invention] [Field of industrial application] This invention relates to a gas leak alarm device that can send three types of signals by supplying three-value voltage to the output for an external alarm. It is something.
従来、ガスもれを検知し警報音を発するガスも
れ警報器に外部警報器を接続し、ガスもれ警報器
の設置点から離れた地点でガスもれを知るように
したものがあるが、これは単にガスもれの有無を
知るもので他の情報を知ることはできなかつた。 Conventionally, there are systems in which an external alarm is connected to a gas leak alarm that detects a gas leak and emits an alarm sound, allowing the user to detect a gas leak at a location far from the point where the gas leak alarm is installed. However, this was simply a way to know whether there was a gas leak or not, and could not provide any other information.
この考案は上記の点にかんがみなされたもの
で、ガスもれ警報器に電圧レベル切換回路を設け
ることにより、ガスもれ情報以外の平常情報，配
線断線情報等が外部警報器側でわかるようにした
ものである。以下この考案について説明する。 This idea was developed in consideration of the above points, and by installing a voltage level switching circuit in the gas leak alarm, normal information other than gas leak information, wire breakage information, etc. can be obtained from the external alarm. This is what I did. This idea will be explained below.
図面はこの考案の一実施例を示す回路図であ
る。この図で、は周知ガスもれ警報器、Ｐは商
用電源のプラグ、Ｔは電源トランスで、一次側
W1、二次側W2，W3を有する。Ｓはガス検知素
子、D1，D2はダイオード、C1，C2はコンデン
サ、R1〜R4は抵抗器、ICは比較増幅器、Q1はト
ランジスタ、AL1はアラームである。は電圧レ
ベル切換回路で、R5は抵抗器、Q2はトランジス
タであり、トランジスタQ2のコレクタ・エミツ
タ間には抵抗器R5が接続され、さらにコレクタ
はダイオードD1の出力側に、ベースは抵抗器R4
と比較増幅器ICの出力の接続点との間に、エミ
ツタは側の接続端子OUTに接続されている。 The drawing is a circuit diagram showing an embodiment of this invention. In this diagram, is the well-known gas leak alarm, P is the commercial power plug, and T is the power transformer, which is on the primary side.
W 1 and secondary sides W 2 and W 3 . S is a gas detection element, D 1 and D 2 are diodes, C 1 and C 2 are capacitors, R 1 to R 4 are resistors, IC is a comparator amplifier, Q 1 is a transistor, and AL 1 is an alarm. is a voltage level switching circuit, R5 is a resistor, and Q2 is a transistor.Resistor R5 is connected between the collector and emitter of transistor Q2 , and the collector is connected to the output side of diode D1, and the base is connected to the output side of diode D1 . is the resistor R 4
and the connection point of the output of the comparison amplifier IC, the emitter is connected to the side connection terminal OUT.
は外部警報器で、R6〜R8は抵抗器、LEDは
発光ダイオード、AL2はアラーム、Q3はトランジ
スタである。そして発光ダイオードLEDの入力
側は抵抗器R6を介して側の接続端子OUTに、
トランジスタQ3のコレクタはアラームAL2を介し
て側の接続端子OUTに、ベースは抵抗器R7を
介して側の接続端子OUTに、ベース・エミツ
タ間は抵抗器R8が接続されている。さらに、ト
ランジスタQ3のエミツタと発光ダイオードLED
の出力側はそれぞれ側の接続端子OUTに接続
されている。 is an external alarm, R 6 to R 8 are resistors, LED is a light emitting diode, AL 2 is an alarm, and Q 3 is a transistor. And the input side of the light emitting diode LED is connected to the side connection terminal OUT through the resistor R6 ,
The collector of the transistor Q 3 is connected to the side connection terminal OUT via the alarm AL 2 , the base is connected to the side connection terminal OUT via the resistor R 7 , and the resistor R 8 is connected between the base and emitter. In addition, the emitter of transistor Q 3 and the light emitting diode LED
The output side of each is connected to the connection terminal OUT on each side.
上記構成において、平常時は側の接続端子
OUTの電圧はアラームAL2が警報音を発する規
定の電圧ＶのＶ／２となるように電圧レベル切換
回路の抵抗器R3の抵抗値を設定してある。そ
して電圧Ｖ／２で発光ダイオードLEDが点灯す
るようにし、アラームAL2は作動しないように選
定してあるので警報音を発しない。 In the above configuration, normally the side connection terminal
The resistance value of the resistor R3 of the voltage level switching circuit is set so that the voltage of OUT becomes V/2 of the specified voltage V at which the alarm AL2 emits an alarm sound. Then, the light emitting diode LED lights up at voltage V/2, and alarm AL 2 is selected not to operate, so no alarm sound is emitted.
次に、ガス検知素子Ｓでガスを検知したとき
は、比較増幅器ICの出力でトランジスタQ1がオ
ンとなりアラームAL1が動作し警報を発する。こ
れと同時にトランジスタQ2がオンとなり、抵抗
器R5がバイパスされるので側の接続端子OUT
の電圧がＶとなる。そのため、トランジスタQ3
がオンとなつてアラームAL2が作動する。またプ
ラグＰを引き抜いた場合、あるいは信号線の断
線，短絡等（これらを総称して配線断線という）
で側の接続端子OUTに電圧がかからない場合
は0Vとなつて発光ダイオードが消灯し、これを
表示する。 Next, when gas is detected by the gas detection element S, the transistor Q1 is turned on by the output of the comparison amplifier IC, and the alarm AL1 is activated to issue an alarm. At the same time, transistor Q 2 turns on and resistor R 5 is bypassed, so that the side connection terminal OUT
The voltage becomes V. Therefore, transistor Q 3
is turned on and alarm AL 2 is activated. In addition, if the plug P is pulled out, or the signal line is disconnected or short-circuited (these are collectively referred to as wiring disconnections).
If no voltage is applied to the connection terminal OUT on the OUT side, it becomes 0V and the light emitting diode turns off, indicating this.
このように警報時には規定の電圧Ｖ、平常時は
警報時における電圧のＶ／２、配線断線時は0V
と３値状態の電圧を有するので、外部警報器へ
３値の電圧を一対の信号線で供給することができ
る。 In this way, the specified voltage is V when there is an alarm, V/2 of the voltage at the time of the alarm during normal times, and 0V when the wiring is broken.
Since it has a three-value state voltage, it is possible to supply three-value voltage to an external alarm device through a pair of signal lines.
またこの実施例においては、電圧レベル切換回
路の接続端子OUTから一つの外部警報装置
を接続した場合を示してあるが、この電圧レベル
切換回路の接続端子OUTに複数の外部警報器
を接続することができる。 Furthermore, although this embodiment shows a case in which one external alarm device is connected to the connection terminal OUT of the voltage level switching circuit, it is also possible to connect multiple external alarm devices to the connection terminal OUT of the voltage level switching circuit. Can be done.
以上説明したようにこの考案は、ガス検知素子
でガスを検知して警報音を発するガスもれ警報器
と外部警報器との間に、ガスもれ警報器側の状態
に応じ直流電圧値を３値に変化させる電圧レベル
切換回路を設けたので、１対の信号線で３値の信
号電圧を送受することができる。このため、外部
警報器の電源を個別に供給することが不要となる
ので回路も簡単で安価なガスもれ警報器を得るこ
とができる。さらに、外部警報器に発光ダイオー
ドを接続したことにより外部側で直ちにガスもれ
警報装置に電圧が印加されているかいないかの判
別ができるので、ガスもれ警報器の設置点から離
れた場所において電源の有無を確認できるなど
種々の利点を有する。 As explained above, this device uses a gas leak alarm that detects gas with a gas detection element and emits an alarm sound, and connects the DC voltage value between the external alarm and the gas leak alarm depending on the state of the gas leak alarm. Since a voltage level switching circuit that changes into three values is provided, three-value signal voltages can be transmitted and received through a pair of signal lines. Therefore, since it is not necessary to separately supply power to the external alarm, it is possible to obtain an inexpensive gas leak alarm with a simple circuit. Furthermore, by connecting a light emitting diode to the external alarm, it is possible to immediately determine from the outside whether voltage is being applied to the gas leak alarm device, so even if the gas leak alarm device is installed in a location far away from the installation point, It has various advantages such as being able to check whether there is a power source.
図面はこの考案の一実施例を示す回路図であ
る。
図中、Ｐはプラグ、Ｔは電源トランス、Ｓはガ
ス検知素子、D1，D2はダイオード、C1，C2はコ
ンデンサ、R1〜R8は抵抗器、ICは比較増幅器、
Q1〜Q3はトランジスタ、AL1〜AL2はアラーム、
OUTは接続端子、LEDはダイオード、はガス
もれ警報器、は電圧レベル切換回路、は外部
警報器である。
The drawing is a circuit diagram showing an embodiment of this invention. In the figure, P is a plug, T is a power transformer, S is a gas detection element, D 1 and D 2 are diodes, C 1 and C 2 are capacitors, R 1 to R 8 are resistors, IC is a comparison amplifier,
Q 1 ~ Q 3 are transistors, AL 1 ~ AL 2 are alarms,
OUT is a connection terminal, LED is a diode, is a gas leak alarm, is a voltage level switching circuit, and is an external alarm.
Claims (1)
ガスもれ時の出力により作動し警報を発するアラ
ームと、直流電源とからなるガスもれ警報器と；
前記直流電源の電圧をガスもれ時，平常時，およ
び配線断線時に応じて３値状態に変化させて接続
端子に印加する電圧レベル切換回路と；前記接続
端子に接続されるとともに前記平常時に少なくと
も点灯し配線断線時に消灯する発光ダイオード
と、前記ガスもれ時に作動するアラームとからな
る外部警報器と；を備えたことを特徴とするガス
もれ警報装置。 A gas leak alarm device consisting of a gas leak detection element, an alarm activated by the output of the gas leak detection element in the event of a gas leak, and a DC power source;
a voltage level switching circuit that changes the voltage of the DC power source into three-value states according to a gas leak, a normal situation, and a wiring break and applies the voltage to the connection terminal; A gas leak alarm device comprising: a light emitting diode that lights up and goes out when a wiring is broken; and an external alarm that is activated when the gas leaks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14336179U JPS6142121Y2 (en) | 1979-10-18 | 1979-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14336179U JPS6142121Y2 (en) | 1979-10-18 | 1979-10-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5661450U JPS5661450U (en) | 1981-05-25 |
| JPS6142121Y2 true JPS6142121Y2 (en) | 1986-11-29 |
Family
ID=29374600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14336179U Expired JPS6142121Y2 (en) | 1979-10-18 | 1979-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6142121Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS585185U (en) * | 1981-06-29 | 1983-01-13 | ホーチキ株式会社 | Gas leak alarm device |
| JPS5821848U (en) * | 1981-08-04 | 1983-02-10 | ホーチキ株式会社 | gas leak detector |
| JPS5821849U (en) * | 1981-08-05 | 1983-02-10 | ホーチキ株式会社 | gas leak detector |
-
1979
- 1979-10-18 JP JP14336179U patent/JPS6142121Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5661450U (en) | 1981-05-25 |
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