JPS644094B2 - - Google Patents
Info
- Publication number
- JPS644094B2 JPS644094B2 JP57085823A JP8582382A JPS644094B2 JP S644094 B2 JPS644094 B2 JP S644094B2 JP 57085823 A JP57085823 A JP 57085823A JP 8582382 A JP8582382 A JP 8582382A JP S644094 B2 JPS644094 B2 JP S644094B2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen deficiency
- resistor
- alarm
- oxygen
- resistance value
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
- F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2231/00—Fail safe
- F23N2231/20—Warning devices
- F23N2231/22—Warning devices using warning lamps
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
- Emergency Alarm Devices (AREA)
Description
【発明の詳細な説明】
本発明は、灯芯を上下させて燃焼，停止を行う
石油ストーブ等の燃焼器に関するもので、空気中
の酸素濃度が一定値以下になつたり、燃焼が不完
全な為一酸化炭素等の未然ガスが一定以上発生し
たりした場合に警報を発して注意を与えるもので
ある。[Detailed Description of the Invention] The present invention relates to a combustor such as a kerosene stove that starts and stops combustion by moving the wick up and down. This system issues an alarm to alert you if a certain amount of gas such as carbon monoxide is generated.
石油ストーブ等を、密閉度の高い部屋で使用す
る場合換気に注意する必要があつた。そこで酸素
濃度等を検出することに依り人体に悪影響をおよ
ぼす危険性が生じる前に燃焼を停止したり、警報
を発するなどの動作により使用者に注意を促す装
置が必要になる。 When using kerosene stoves, etc. in a highly airtight room, it was necessary to pay attention to ventilation. Therefore, there is a need for a device that, by detecting oxygen concentration, etc., can stop combustion before there is a risk of adverse effects on the human body, or issue an alarm to alert the user.
本発明はこのような要求に応ずるための制御回
路に関するもので、特に前記気体の濃度を検出す
る素子（以下酸欠センサという）のバラツキを吸
収するものである。 The present invention relates to a control circuit to meet such demands, and in particular, to absorb variations in an element (hereinafter referred to as an oxygen deficiency sensor) that detects the concentration of the gas.
一般に酸欠センサとして酸化錫系のものを用い
ると、例えば燃焼空気中の酸素が除々に減少し、
そのために一酸化炭素の濃度が高くなるにつれて
酸欠センサの抵抗値は小さくなつてくる。しかし
ながらその抵抗値のバラツキは大きく仲々一定し
にくい。そこで本発明はそのようなバラツキを直
列接続する抵抗器により解決するものである。 Generally, when a tin oxide-based sensor is used as an oxygen deficiency sensor, for example, oxygen in the combustion air gradually decreases.
Therefore, as the concentration of carbon monoxide increases, the resistance value of the oxygen deficiency sensor decreases. However, the resistance value varies greatly and is difficult to maintain constant. Therefore, the present invention solves such variations by using resistors connected in series.
以下その一実施例を説明する。 An example of this will be described below.
第１図は本実施例の構造を示すものであり、１
は酸素又は一酸化炭素の濃度を検出する酸欠セン
サ、２は燃焼筒、３は外装ケース、４は点火ヒー
タ、５は乾電池８を納めるケース、２１は酸欠状
態になつた時に警報を発する警報手段として用い
た警報ランプ、７は上記成分の濃度を測定し、警
報を発するか否かを判定する制御部であり、第２
図に制御部７の回路図を示す。乾電池８には点火
操作時に閉じるスイツチ９を介して点火ヒータ４
が接続されている。 FIG. 1 shows the structure of this embodiment.
2 is an oxygen deficiency sensor that detects the concentration of oxygen or carbon monoxide, 2 is a combustion tube, 3 is an exterior case, 4 is an ignition heater, 5 is a case that houses a dry battery 8, and 21 is an alarm that issues an alarm when an oxygen deficiency condition occurs. An alarm lamp used as an alarm means, 7 is a control unit that measures the concentration of the above-mentioned components and determines whether or not to issue an alarm;
The figure shows a circuit diagram of the control section 7. The dry battery 8 is connected to the ignition heater 4 via a switch 9 that closes when the ignition is operated.
is connected.
また、点火ヒータ４と並列に電源スイツチ１０
を介して酸欠回路１１と警報回路１２が接続され
ている。 In addition, a power switch 10 is connected in parallel with the ignition heater 4.
The oxygen deficiency circuit 11 and the alarm circuit 12 are connected via the oxygen deficient circuit 11 and the alarm circuit 12.
酸欠センサ１と抵抗器１３，１４，１５はブリ
ツジ回路を形成しており、それらの接続点ｂ，ｃ
より電圧比較器１６の入力端子を接続している。 Oxygen deficiency sensor 1 and resistors 13, 14, 15 form a bridge circuit, and their connection points b, c
The input terminal of the voltage comparator 16 is connected to the input terminal of the voltage comparator 16.
酸欠センサ１の抵抗値が、抵抗１３と１４であ
らかじめ定められた値以上に変化すると電圧比較
器１６の出力が反転する。１７は低周波発振回路
であり電圧比較器１６の出力が反転することによ
り能動状態となり発振を開始するとともに、抵抗
１８，１９を介してトランジスタ２０にその発振
出力を出し、警報ランプ２１を点滅させる。 When the resistance value of the oxygen deficiency sensor 1 changes beyond a value predetermined by the resistors 13 and 14, the output of the voltage comparator 16 is inverted. Reference numeral 17 denotes a low frequency oscillation circuit which becomes active when the output of the voltage comparator 16 is inverted and starts oscillating, and outputs its oscillation output to the transistor 20 via resistors 18 and 19, causing the alarm lamp 21 to blink. .
ここで酸欠センサ１のバラツキが大きいと酸素
濃度が例えば17〜19％の間で警報を発するように
抵抗１５の値を決めても、うまく働かなくなる。
一般には、石油ストーブを燃焼させてその雰囲気
の酸素濃度を18％ぐらいにして、適切に動作する
ように抵抗１５の値を決めればよいが、実際には
相当に燃焼させる時間や、調整する時間がかかつ
たり、また、酸欠センサ１が不良になつたらば酸
欠センサ１のみの交換はできず、もう一回調整し
なければならないという欠点を持つており、実際
にはこのようなことは大変めんどうである。 If the variation in the oxygen deficiency sensor 1 is large, even if the value of the resistor 15 is determined to issue an alarm when the oxygen concentration is between 17% and 19%, for example, it will not work properly.
In general, you can set the value of resistor 15 so that it will work properly by burning the kerosene stove to bring the oxygen concentration in the atmosphere to about 18%, but in reality it takes a considerable amount of time to burn it and adjust it. However, if the oxygen deficiency sensor 1 becomes defective, it is not possible to replace only the oxygen deficiency sensor 1, and the adjustment must be made again. is very troublesome.
そこで第２図の如く、酸欠センサ１と抵抗１５
との直列回路の抵抗器２２を取り外しできるよう
にし、酸欠センサ１と抵抗１５の直列のままで、
酸欠センサ１を一定の酸素濃度例へば18％の雰囲
気中に入れ、その時の抵抗値を測定し、それに合
つた抵抗値の抵抗１５を接続する。 Therefore, as shown in Figure 2, oxygen deficiency sensor 1 and resistor 15
The resistor 22 in the series circuit with can be removed, and the oxygen deficiency sensor 1 and the resistor 15 remain in series,
The oxygen deficiency sensor 1 is placed in an atmosphere with a constant oxygen concentration, for example, 18%, the resistance value at that time is measured, and a resistor 15 having a resistance value corresponding to the measured value is connected.
具体的には第３図の如く、コネクタ２３に酸欠
センサ１と抵抗１５を挿入して、これをセツトと
し、酸欠センサ１と抵抗１５の両者とも着脱自在
とするのである。そして、このようにすれば、燃
焼させなくても、上記セツト体のみを一定の基準
ガス中に入れれば特性試験が行える。 Specifically, as shown in FIG. 3, the oxygen deficiency sensor 1 and the resistor 15 are inserted into the connector 23 to form a set, and both the oxygen deficiency sensor 1 and the resistor 15 are detachable. In this way, a characteristic test can be carried out by placing only the above-mentioned set in a certain reference gas without burning it.
以上のように本発明によれば酸欠センサの特性
バラツキを簡単に調整し、動作が正確に行えるよ
うにできる。特に本発明では酸欠センサと抵抗器
とをセツトにして制御回路から取外せるようにし
ているので特性バラツキの調整は燃焼器本体がな
くても行なえ、一担使用者に渡つた燃焼器のバラ
ツキ調整、すなわちサービスも極めて簡単に行な
えるとともに、生産も制御回路側とは切離してで
きるので製造時のバラツキ調整も容易に行なえ、
しかも酸欠センサ故障時の交換も容易にできる利
点がある。 As described above, according to the present invention, variations in the characteristics of the oxygen deficiency sensor can be easily adjusted to ensure accurate operation. In particular, in the present invention, since the oxygen deficiency sensor and the resistor are combined as a set and can be removed from the control circuit, variations in characteristics can be adjusted without the combustor itself, and variations in the combustor that are passed on to the user can be adjusted. Adjustment, or servicing, is extremely easy, and since production can be done separately from the control circuit side, it is easy to adjust for variations during manufacturing.
Moreover, it has the advantage that it can be easily replaced when the oxygen deficiency sensor malfunctions.
第１図は本発明の一実施例を示す構造図、第２
図は同回路図、第３図は酸欠センサの完成品の構
成図である。
１……酸欠センサ、８……乾電池（電池）、１
５……抵抗、２１……警報ランプ（警報手段）。
Figure 1 is a structural diagram showing one embodiment of the present invention, Figure 2 is a structural diagram showing an embodiment of the present invention.
The figure is a circuit diagram of the same, and FIG. 3 is a configuration diagram of a completed oxygen deficiency sensor. 1...Oxygen deficiency sensor, 8...Dry battery (battery), 1
5...Resistor, 21...Warning lamp (alarm means).
Claims (1)
変化する素子と、この素子に直列接続した抵抗器
と、前記素子の抵抗値が一定の値以上を示す場合
に警報を発する警報手段を有する制御回路とを備
え、かつ前記素子と抵抗器とを１つのセツトと
し、これらを共に前記制御回路から着脱自在とし
て抵抗器を異なる抵抗値のものと交換可能とした
燃焼器。1. It has an element whose resistance value changes depending on the concentration of oxygen or carbon monoxide, a resistor connected in series with this element, and an alarm means that issues an alarm when the resistance value of the element exceeds a certain value. A combustor comprising a control circuit, the element and the resistor as one set, both of which are detachable from the control circuit, and the resistor can be replaced with one having a different resistance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57085823A JPS58203318A (en) | 1982-05-20 | 1982-05-20 | combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57085823A JPS58203318A (en) | 1982-05-20 | 1982-05-20 | combustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58203318A JPS58203318A (en) | 1983-11-26 |
| JPS644094B2 true JPS644094B2 (en) | 1989-01-24 |
Family
ID=13869569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57085823A Granted JPS58203318A (en) | 1982-05-20 | 1982-05-20 | combustor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58203318A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107067658A (en) * | 2016-12-13 | 2017-08-18 | 施慧 | A kind of smoke alarm of public place |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5013691U (en) * | 1973-06-01 | 1975-02-13 | ||
| JPS5473097A (en) * | 1977-11-22 | 1979-06-12 | Seiko Epson Corp | Gas sensor |
| JPS5942826B2 (en) * | 1978-08-18 | 1984-10-17 | 松下電器産業株式会社 | gas detection device |
| CH638636A5 (en) * | 1979-03-16 | 1983-09-30 | Cerberus Ag | GAS DETECTOR FOR USE IN AN EXPLOSION HAZARDOUS ENVIRONMENT. |
| JPS5687722A (en) * | 1979-12-19 | 1981-07-16 | Matsushita Electric Ind Co Ltd | Safety device for combustion apparatus |
-
1982
- 1982-05-20 JP JP57085823A patent/JPS58203318A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58203318A (en) | 1983-11-26 |
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