JPS6157971B2 - - Google Patents
Info
- Publication number
- JPS6157971B2 JPS6157971B2 JP54097080A JP9708079A JPS6157971B2 JP S6157971 B2 JPS6157971 B2 JP S6157971B2 JP 54097080 A JP54097080 A JP 54097080A JP 9708079 A JP9708079 A JP 9708079A JP S6157971 B2 JPS6157971 B2 JP S6157971B2
- Authority
- JP
- Japan
- Prior art keywords
- solenoid valve
- voltage
- combustion
- capacitor
- circuit
- 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
- 239000003990 capacitor Substances 0.000 claims description 36
- 238000002485 combustion reaction Methods 0.000 claims description 23
- 239000000446 fuel Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 description 19
- 238000009423 ventilation Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Description
【発明の詳細な説明】
本発明は、燃焼器具の電磁弁の駆動制御に関す
るものであり、特にその安全性に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to drive control of a solenoid valve of a combustion appliance, and particularly to its safety.
従来より用いられている電磁弁の駆動制御とし
ては、単に電磁弁の電源をオン、オフするものが
あるが、これは電磁弁の初期吸着に必要なエネル
ギーの供給をオン、オフして電磁弁をオン、オフ
するものであり、電磁弁の制御の基本的なもので
あり、多く用いられているが、電磁弁の初期吸着
に要するエネルギーと、開成を保持するためのエ
ネルギーには大きな差があり、保持時には、僅か
なエネルギーが供給されていれば充分である。従
つて従来の方式では余分なエネルギーを常時与え
ているために、電磁弁に大容量のものが必要であ
り、かつ、電磁弁のオン、オフによる電源電圧の
変動も大きく、電源の安定のために複雑な装置が
必要であつた。また、瞬時停電が発生した時に
は、電磁弁へのエネルギーの供給が停止されて、
瞬時であろうと、電磁弁は閉じてしまう、またこ
の電磁弁を失火安全装置として使用する場合、瞬
時燃焼が停止しただけでは失火を検知することは
不可能であるため、停電が復帰すると同時に、電
磁弁が再び開成して生燃料が流出するという欠点
がある上に、制御回路中の部品の故障に対してフ
エールセーフとならず、故障の方向によつては、
電磁弁がオフしたままとなり、生燃料が流出する
という欠点があつた。 Conventionally used drive control for solenoid valves involves simply turning on and off the power to the solenoid valve; It turns on and off, and is the basic control of solenoid valves, and is widely used. However, there is a big difference between the energy required for the initial attraction of a solenoid valve and the energy required to hold it open. It is sufficient that a small amount of energy is supplied during holding. Therefore, in the conventional method, excess energy is constantly applied, requiring a large-capacity solenoid valve, and the power supply voltage fluctuates greatly due to turning on and off the solenoid valve, making it difficult to stabilize the power supply. required complicated equipment. Additionally, when a momentary power outage occurs, the supply of energy to the solenoid valve is stopped.
Even if it is instantaneous, the solenoid valve closes, and when using this solenoid valve as a misfire safety device, it is impossible to detect a misfire just by stopping instantaneous combustion, so as soon as the power is restored, In addition to the drawback that the solenoid valve opens again and raw fuel flows out, it is not fail-safe against failure of components in the control circuit, and depending on the direction of failure,
The drawback was that the solenoid valve remained off, causing raw fuel to flow out.
本発明は以上のような欠点を解消したもので、
電磁弁の初期開成時と開成後の開成維持を合理的
な電力供給で行なうとともにこの電磁弁駆動回路
の故障の安全性確保を目的とするものである。 The present invention eliminates the above-mentioned drawbacks.
The purpose is to use a reasonable power supply to initially open the solenoid valve and to keep it open after opening, and to ensure safety against failures in the solenoid valve drive circuit.
本発明の構成を３個のバーナを有するガステー
ブルに応用した一実施例により説明する。 The structure of the present invention will be explained using an example in which the structure of the present invention is applied to a gas table having three burners.
第１図に本発明の全体を示す。ガス回路はコツ
ク７８，８２，８６，電磁弁８９、バーナ７６，
８０，８４より成る。バーナ近傍には７７，８
１，８５の熱電対が設けられており、コツクには
始動操作時に８８の点火器を一定時間作動させ、
かつ、ガス回路を開けるためのスイツチが設けら
れている。９１は換気扇を示し、換気扇が始動し
ていない時は９０の制御回路への電源供給を停止
させる換気扇連動装置９２を通して制御回路に電
源が供給される。 FIG. 1 shows the entire invention. The gas circuit consists of Kotoku 78, 82, 86, solenoid valve 89, burner 76,
It consists of 80 and 84. 77,8 near the burner
There are 1,85 thermocouples installed in the Kotoku, which activate 88 igniters for a certain period of time during the starting operation.
Additionally, a switch is provided to open the gas circuit. Reference numeral 91 indicates a ventilation fan, and power is supplied to the control circuit through a ventilation fan interlocking device 92 that stops power supply to the control circuit 90 when the ventilation fan is not started.
第２図に、本発明のシーケンスのフローチヤー
トを示す。 FIG. 2 shows a flowchart of the sequence of the present invention.
第３図に、本発明の制御回路を示す。制御回路
はコンパレータを使用した発振回路、比較回路、
電磁弁駆動回路、点火器タイマー回路等より成
り、制御部分の電源は１のツエナーダイオードと
７４の抵抗で安定化されている。発振回路は２，
５３のコンパレータ、３，４，５，６，７，５
４，５５の抵抗及び８のコンデンサで構成され
る。比較回路は９，１０，１１のコンパレータと
１２，１３，１４，１５，１６，１７，１８，１
９，２０，２１，２２，２３の抵抗により構成さ
れる。電磁弁駆動回路は２４のコンパレータ、２
５，２６，２７，２８，２９，３０，３１，３
２，３３，３４，３５の抵抗、３６，３７，３
８，３９のコンデンサ、４０，４１，４２，４３
のダイオード、４４，４５のトランジスタより成
る。また、点火器タイマー回路は４６のコンパレ
ータ、４７，４８，４９，５０，５１の抵抗、５
２のトランジスタ、さらに５６，５７，５８のコ
ンデンサ、５９，６０，６１，６２，６３，６４
のダイオード、６５，６６の抵抗により構成され
ている。加えて、器具が不使用状態の時には、ガ
ス回路を閉じるように６７のコンパレータ、６
８，６９，７０，７１，７２，７３の抵抗により
論理回路が構成されている。 FIG. 3 shows a control circuit of the present invention. The control circuit includes an oscillation circuit using a comparator, a comparison circuit,
It consists of a solenoid valve drive circuit, an igniter timer circuit, etc., and the power supply for the control section is stabilized by 1 Zener diode and 74 resistors. The oscillation circuit is 2,
53 comparators, 3, 4, 5, 6, 7, 5
It consists of 4.55 resistors and 8 capacitors. The comparison circuit has comparators 9, 10, 11 and 12, 13, 14, 15, 16, 17, 18, 1
It is composed of resistors 9, 20, 21, 22, and 23. The solenoid valve drive circuit has 24 comparators, 2
5, 26, 27, 28, 29, 30, 31, 3
2, 33, 34, 35 resistance, 36, 37, 3
8, 39 capacitors, 40, 41, 42, 43
diodes and 44 and 45 transistors. The igniter timer circuit also includes 46 comparators, 47, 48, 49, 50, and 51 resistors, and 5
2 transistors, 56, 57, 58 capacitors, 59, 60, 61, 62, 63, 64
It is composed of diodes 65 and 66, and resistors 65 and 66. In addition, a comparator at 67, 6 to close the gas circuit when the appliance is not in use.
A logic circuit is constituted by resistors 8, 69, 70, 71, 72, and 73.
以上の構成を操作順に詳しく説明する。まず、
９２の換気扇連動装置により９１の換気扇が回
り、９０の制御回路に電源が供給されると７４，
６６の抵抗、７９，８３，８７のスイツチを通し
て５６，５７，５８のコンデンサーに充電され
る。この時にはまだ８９の電磁弁も８８の点火器
も動作しない。次にコツクの１つ例えば７８を開
くと、これに連動されたスイツチ７９がNO端子
側（白丸部）に閉じて、５６のコンデンサより６
２のダイオード、６５の抵抗を通じて放電が始ま
る。これによつて４６のコンパレータ出力がハイ
レベルとなり、５２のトランジスタを通して８８
の点火器が一定時間すなわち抵抗４７，４８で決
められる電圧にコンデンサ５６が放電する間、作
動すると同時に、５５の抵抗を通して５３のコン
パレータが発振を開始し、発振波形が比較回路に
伝えられる。一方５６のコンデンサの放電回路と
して、５９のダイオード、１４，１５，１６の抵
抗を通る回路もあり、これによつて同時に、燃焼
状態に関係なく強制的に一定時間、すなわちコン
デンサ５６の放電電圧と抵抗１５，１６，７１で
分割される電位より決められる発振電圧のピーク
値がコンパレータ９の一端子電圧に低下するまで
発振は次段のコンパレータ１０，１１に伝えられ
コンデンサ３６に発振波形のみコンデンサ３７に
充電し、コンパレータ２４の出力をハイレベルに
しトランジスタ４４をオンさせて電磁弁８９を開
成する。正常に着火すれば熱電対７７がこの間に
起電力を発生するのでコンパレータ９の一端子電
圧は抵抗１３と１４間の電圧よりさらに低くなる
一方、＋端子電圧に印加される発振電圧のピーク
値はコンデンサ５６が放電しきつても上記抵抗１
３と１４間の電圧に落ちつくのでコンパレータ９
の出力は発振し上記の如く発振電圧は次段へと受
け継がれ電磁弁は開閉状態を保持し燃焼は続行さ
れる。又、他のバーナを使用する時もこれと全く
同様であるが、燃焼中風や煮こぼれ等によりバー
ナの燃焼炎が失火した場合、電磁弁は閉じられ生
ガスの流出は防がれる。これは、燃焼炎の消失に
より熱起電力が低下し、コンパレータの−端子電
圧が＋端子電圧の発振電圧の上限値以上になる為
出力端子が常にローレベルとなる為で、発振は次
段へ伝えられず電磁弁は閉じられる。 The above configuration will be explained in detail in the order of operations. first,
When the ventilation fan 91 is rotated by the ventilation fan interlocking device 92 and power is supplied to the control circuit 90, 74,
The capacitors 56, 57, and 58 are charged through the resistor 66 and the switches 79, 83, and 87. At this time, neither the solenoid valve 89 nor the igniter 88 operates. Next, when one of the capacitors, for example 78, is opened, the switch 79 linked to this closes to the NO terminal side (white circle part), and the 6
Discharge begins through diode 2 and resistor 65. As a result, the comparator output of 46 becomes high level, and the 88
When the igniter operates for a certain period of time, that is, while the capacitor 56 discharges to a voltage determined by the resistors 47 and 48, the comparator 53 starts oscillating through the resistor 55, and the oscillation waveform is transmitted to the comparison circuit. On the other hand, as a discharge circuit for the capacitor 56, there is also a circuit that passes through the diode 59 and the resistors 14, 15, and 16, and at the same time, the discharge voltage of the capacitor 56 is forcibly maintained for a certain period of time regardless of the combustion state. The oscillation is transmitted to the next-stage comparators 10 and 11 until the peak value of the oscillation voltage determined by the potential divided by the resistors 15, 16, and 71 drops to the voltage at one terminal of the comparator 9, and only the oscillation waveform is transferred to the capacitor 36. , the output of the comparator 24 is set to high level, the transistor 44 is turned on, and the solenoid valve 89 is opened. If the ignition occurs normally, the thermocouple 77 generates an electromotive force during this time, so the voltage at one terminal of the comparator 9 becomes even lower than the voltage between the resistors 13 and 14, while the peak value of the oscillation voltage applied to the + terminal voltage is Even if the capacitor 56 is discharged, the resistor 1
Since the voltage settles between 3 and 14, comparator 9
The output of the solenoid valve oscillates, and as described above, the oscillation voltage is passed on to the next stage, and the solenoid valve is kept open and closed, and combustion continues. The same is true when using other burners, but if the combustion flame of the burner misfires due to wind or boiling over during combustion, the solenoid valve is closed to prevent raw gas from flowing out. This is because the thermal electromotive force decreases as the combustion flame disappears, and the - terminal voltage of the comparator exceeds the upper limit of the oscillation voltage of the + terminal voltage, so the output terminal is always at a low level, and the oscillation continues to the next stage. The solenoid valve is closed without being transmitted.
又、本発明では電源投入時コツクが開らかれて
いた場合電磁弁が開らかれる事はなく、安全であ
るが、これは電源投入時コツクが開かれていると
コンデンサ５６，５７，５８に充電されず、上記
理由で発振回路の発振が次段に伝わらず、一度を
コツクを閉にし上記コンデンサーを全て充電しな
いと電磁弁が開成されない様に構成されている為
である。 In addition, in the present invention, if the lock is opened when the power is turned on, the solenoid valve will not be opened, which is safe. This is because the solenoid valve is configured so that it is not charged and the oscillation of the oscillation circuit is not transmitted to the next stage due to the above-mentioned reason, and the solenoid valve cannot be opened unless the capacitor is fully charged by closing the capacitor once.
次に電磁弁駆動回路を説明する。本回路に電源
が投入されると同時に抵抗３５を通じてコンデン
サ３８は電源電圧まで充電される。さらに、コン
デンサ３９及びトランジスタ４５により電源電圧
のほぼ２倍の電圧がコンデンサ３８に充電され
る。トランジスタ４５は前述の発振回路によりオ
ンオフしており、オン時にはコンデンサ３９は電
源電圧まで充電され、オフ時にはコンデンサ３９
の−側が電源電圧に抵抗３４により達するのでコ
ンデンサ３９の充電電圧はダイオード４２，４３
によりコンデンサ３８に再充電される。そして、
使用時コツクが開らかれると前述の如くトランジ
スタ４４がオンし、電磁弁８９に初期電源電圧の
２倍のコンデンサ３８の放電電流により、開成さ
れる。その後電磁弁８９には抵抗３５で制限され
た保持電流により開成状態は保持される。電磁弁
の作動電流は大きい値が必要であるが、一度開成
すれば、電磁弁の電磁石と鉄心の距離は縮まり、
起磁力は距離に逆比例するので少なくても開成は
保持できる。従つて、電磁弁の駆動部例えばトラ
ンジスタ４４のシヨート故障時には最初からコン
デンサ３８には電源電圧が充電されず電磁弁には
保持電流しか供給されないので電磁弁は開成され
ず安全故障となる。 Next, the solenoid valve drive circuit will be explained. At the same time as the power is turned on to this circuit, the capacitor 38 is charged to the power supply voltage through the resistor 35. Further, the capacitor 39 and the transistor 45 charge the capacitor 38 with a voltage approximately twice the power supply voltage. The transistor 45 is turned on and off by the above-mentioned oscillation circuit, and when it is on, the capacitor 39 is charged to the power supply voltage, and when it is off, the capacitor 39 is charged.
Since the negative side of the capacitor 39 reaches the power supply voltage through the resistor 34, the charging voltage of the capacitor 39 is connected to the diodes 42 and 43.
The capacitor 38 is recharged by the voltage. and,
When the cap is opened during use, the transistor 44 is turned on as described above, and the electromagnetic valve 89 is opened by the discharge current of the capacitor 38 which is twice the initial power supply voltage. Thereafter, the open state of the electromagnetic valve 89 is maintained by the holding current limited by the resistor 35. The operating current of a solenoid valve requires a large value, but once it is opened, the distance between the solenoid valve's electromagnet and the iron core is shortened.
Since the magnetomotive force is inversely proportional to the distance, the opening can be maintained at least. Therefore, when the short of the solenoid valve drive unit, for example, the transistor 44, fails, the capacitor 38 is not charged with the power supply voltage from the beginning and only a holding current is supplied to the solenoid valve, so that the solenoid valve is not opened and a safety failure occurs.
以上述べたように、本発明によれば開閉装置で
あるトランジスタ４４の開時、昇圧回路である倍
電圧回路によりコンデンサ３８に電源電圧以上の
電圧を充電し、トランジスタ４４の閉時電磁弁８
９へ通電する構成であるので開閉装置であるトラ
ンジスタ４４の故障時フエールセーフとなり従来
のように生燃料が流出するということがなくな
る。 As described above, according to the present invention, when the transistor 44, which is a switching device, is opened, the capacitor 38 is charged with a voltage higher than the power supply voltage by the voltage doubler circuit, which is a step-up circuit, and when the transistor 44 is closed, the solenoid valve 8
Since the configuration is such that the transistor 9 is energized, it is fail-safe in the event of a failure of the transistor 44, which is a switching device, and there is no possibility of raw fuel flowing out as in the conventional case.
又、本実施例は昇圧回路、発振回路を入れたも
ので説明したがこれらはなくてもフエールセーフ
となる。 Further, although this embodiment has been described as including a booster circuit and an oscillation circuit, it is fail-safe even without these circuits.
例えば第３図で昇圧回路、発振回路が作用しな
い場合、すなわち３４の抵抗、３９のコンデンサ
ーがない場合を考えると、例えば回路電源電圧を
24V、電磁弁８９の開き始める開弁電圧を20V、
一度開弁した後開成を保持し得なくて閉弁する電
圧を5Vとする。又、電磁弁と直列の抵抗３５の
抵抗値を100Ω、電磁弁の抵抗値も100Ωとする。 For example, if we consider the case where the booster circuit and oscillation circuit do not work in Figure 3, that is, the case where there is no resistor 34 and capacitor 39, for example, the circuit power supply voltage
24V, the opening voltage of the solenoid valve 89 is 20V,
The voltage at which the valve cannot be held open and closes after it has been opened is 5V. Further, the resistance value of the resistor 35 in series with the solenoid valve is 100Ω, and the resistance value of the solenoid valve is also 100Ω.
燃焼開始前は開閉装置である４４のトランジス
タはオフしており３８のコンデンサには24V充電
される。燃焼開始時４４のトランジスタはオンさ
れ一瞬コンデンサーの充電電圧24Vは電磁弁に流
れ開弁し、その後前記抵抗と電磁弁の分圧電圧で
ある12Vが電磁弁に流れ開弁は保持される。 Before the combustion starts, transistor 44, which is a switchgear, is turned off, and capacitor 38 is charged with 24V. At the start of combustion, the transistor 44 is turned on, and for a moment the charging voltage of the capacitor, 24V, flows to the solenoid valve, opening the valve.After that, 12V, which is the divided voltage between the resistor and the solenoid valve, flows to the solenoid valve, and the valve is kept open.
もし仮りに開閉装置であるトランジスタ４４が
シヨート故障していた場合、一般の回路であれば
電磁弁がオンし放しとなり万一生ガスが流出しト
ランジスタ４４をオフする信号が入つても故障の
ためオフできず生ガスが流出し続け事故に至る場
合がある。しかし、本発明の場合、トランジスタ
４４がシヨート故障していた場合、コンデンサ３
８は24Vに充電されず、電磁弁の100Ωが接地さ
れる形となり電磁弁には12Vしか印加されないの
で電磁弁は開弁しない。したがつて、電磁弁駆動
回路の開閉装置が故障の場合、昇圧回路や発振回
路がなくてもフエールセーフとなる。 If the transistor 44, which is a switching device, has a shot failure, if it is a normal circuit, the solenoid valve will remain on, and even if gas leaks out and a signal to turn off the transistor 44 is received, the failure will still occur. If it cannot be turned off, raw gas may continue to flow out, leading to an accident. However, in the case of the present invention, if the transistor 44 has a short failure, the capacitor 3
8 is not charged to 24V, the 100Ω of the solenoid valve is grounded, and only 12V is applied to the solenoid valve, so the solenoid valve does not open. Therefore, if the opening/closing device of the electromagnetic valve drive circuit fails, there is no need for a booster circuit or an oscillation circuit to provide a fail-safe system.
又、本発明では前段に発振回路を設け、最終段
にはコンデンサーカツプリングにより電磁弁を駆
動しているので回路中のコンパレータ等が故障し
た場合電磁弁は開成されず安全故障となる。例え
ばコンパレータがシヨート故障、オープン故障し
た場合発振は停止し、コンデンサ３６は発振波形
しか伝えないので電磁弁は開成される事はない。 Furthermore, in the present invention, an oscillation circuit is provided in the first stage, and a solenoid valve is driven by a capacitor coupling in the final stage, so if a comparator or the like in the circuit fails, the solenoid valve will not open, resulting in a safety failure. For example, if the comparator has a shoot failure or an open failure, the oscillation will stop and the capacitor 36 will only transmit the oscillation waveform, so the solenoid valve will not open.
本発明によれば、電磁弁の初期吸着に要する大
エネルギーを倍電圧回路により、初期だけ電磁弁
に供給し、吸着後は、保持に必要な小さなエネル
ギーだけ供給するため、エネルギーの無駄も少な
く、電源電圧が安定しており、電源の安定のため
の装置も簡単であり、経済的である。 According to the present invention, the large energy required for initial adsorption of the solenoid valve is supplied to the solenoid valve by the voltage doubler circuit only initially, and after adsorption, only the small amount of energy required for holding is supplied, so there is little energy wastage. The power supply voltage is stable, and the device for stabilizing the power supply is simple and economical.
また、瞬時停電が発生した場合には、コンデン
サーに蓄えられたエネルギーにより、電磁弁の開
成を保持できるため、燃焼が停止することはな
い。しかも、停止時間が長くコンデンサーによ
り、カバーできなかつた場合には、燃焼は停止す
るが停電が複帰した場合には、失火検知していな
い間は電磁弁の吸着に必要なエネルギーが、倍電
圧回路によつて与えられないため、生燃料が流出
することがなく安全である。 Additionally, in the event of a momentary power outage, the energy stored in the capacitor can keep the solenoid valve open, so combustion will not stop. Moreover, if the stoppage time is too long and the capacitor cannot cover the combustion, combustion will stop, but if there is a repeated power outage, the energy required to attract the solenoid valve will be reduced to the double voltage as long as a misfire is not detected. Since it is not supplied by the circuit, raw fuel will not leak out and is safe.
加えて、この倍電圧回路の発振器を失火検出の
ための発振器と共用しているため、経済的であ
る。 In addition, since the oscillator of this voltage doubler circuit is also used as the oscillator for misfire detection, it is economical.
また、電磁弁の初期吸着に必要な大エネルギー
の供給が準備されるまでは、電磁弁のON信号を
自動的にストツプさせ、吸着に充分な電力が準備
された時に初めて、信号が伝達されて電磁弁を吸
着するために、開成のミスがなく、反対に初期吸
着時に、制御回路部品の故障により、電磁弁のオ
ン信号が常時発生していた場合には、吸着に必要
な大エネルギーが準備されず、電磁弁は開成する
ことがなく安全故障となる。 In addition, the ON signal of the solenoid valve is automatically stopped until the large amount of energy necessary for the initial adsorption of the solenoid valve is prepared, and the signal is transmitted only when sufficient power for adsorption is prepared. In order to attract the solenoid valve, if there is no mistake in opening, but on the other hand, the on-signal of the solenoid valve is constantly generated due to a failure of the control circuit components during the initial attraction, the large amount of energy required for attraction will be prepared. Therefore, the solenoid valve will not open, resulting in a safety failure.
以上のように、本発明によれば、経済的であり
しかも安全で、信頼性が高く、実用性に秀れた電
磁弁の制御を行なうことができる。 As described above, according to the present invention, it is possible to control a solenoid valve that is economical, safe, highly reliable, and highly practical.
第１図は本発明の一実施例における燃焼制御装
置の構成図、第２図は同装置のフローチヤート
図、第３図は同装置の制御回路図を示す。
５３……コンパレータ、８５……熱電対、８９
……電磁弁、９０……制御回路。
FIG. 1 is a block diagram of a combustion control device according to an embodiment of the present invention, FIG. 2 is a flow chart of the same device, and FIG. 3 is a control circuit diagram of the same device. 53... Comparator, 85... Thermocouple, 89
... Solenoid valve, 90 ... Control circuit.
Claims (1)
た電磁弁と、上記燃焼部に燃料を供給するコツク
と、コツクと連動するスイツチと、このスイツチ
により開閉する開閉装置と、開閉装置を通じて上
記電磁弁等を制御する制御回路を備え、この制御
回路中に電源間に抵抗、上記電磁弁及び開閉装置
を直列に接続し、かつ上記電磁弁と上記開閉装置
に、並列にコンデンサを接続し、燃焼開始前に前
記開閉装置を開とし、かつ前記コンデンサを前記
電磁弁が開弁する電圧以上となる電源電圧まで充
電し、燃焼開始時上記スイツチの信号により上記
開閉装置を閉じて上記コンデンサの充電電圧を上
記電磁弁に通電して開弁するとともに、燃焼中は
上記抵抗を通じて上記電磁弁が開弁する電圧以下
の保持電圧を上記電磁弁に供給して開弁状態を保
持する電磁弁駆動回路を有する燃焼安全装置。 ２ 電磁弁駆動回路における電磁弁の始動時は、
昇圧回路により前記コンデンサを電源電圧以上に
充電し、前記開閉装置の閉時前記コンデンサの充
電電圧を前記電磁弁に通電する構成とした特許請
求の範囲第１項記載の燃焼安全装置。 ３ 昇圧回路に必要な発振器を制御回路中の燃焼
安全検知用の発振器と共用する特許請求の範囲第
１項記載の燃焼安全装置。[Scope of Claims] 1. A solenoid valve provided in a fuel passage to a combustion section of a combustion appliance, a switch for supplying fuel to the combustion section, a switch interlocked with the switch, and an opening/closing device opened and closed by the switch. and a control circuit that controls the solenoid valve, etc. through a switching device, a resistor is connected between the power source, the solenoid valve, and the switching device are connected in series in this control circuit, and the solenoid valve and the switching device are connected in parallel. A capacitor is connected to the switch, the opening/closing device is opened before combustion starts, and the capacitor is charged to a power supply voltage that is higher than the voltage at which the solenoid valve opens, and when combustion starts, the switching device is opened by a signal from the switch. When closed, the charging voltage of the capacitor is applied to the solenoid valve to open the valve, and during combustion, a holding voltage lower than the voltage at which the solenoid valve opens is supplied to the solenoid valve through the resistor to keep the valve open. Combustion safety device with a holding solenoid valve drive circuit. 2 When starting the solenoid valve in the solenoid valve drive circuit,
2. The combustion safety device according to claim 1, wherein the capacitor is charged to a voltage higher than the power supply voltage by a booster circuit, and the charging voltage of the capacitor is applied to the electromagnetic valve when the switching device is closed. 3. The combustion safety device according to claim 1, wherein the oscillator required for the booster circuit is also used as the oscillator for combustion safety detection in the control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9708079A JPS5620928A (en) | 1979-07-30 | 1979-07-30 | Safety system for combustion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9708079A JPS5620928A (en) | 1979-07-30 | 1979-07-30 | Safety system for combustion apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5620928A JPS5620928A (en) | 1981-02-27 |
| JPS6157971B2 true JPS6157971B2 (en) | 1986-12-09 |
Family
ID=14182657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9708079A Granted JPS5620928A (en) | 1979-07-30 | 1979-07-30 | Safety system for combustion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5620928A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01135378A (en) * | 1987-11-20 | 1989-05-29 | Sanyo Electric Co Ltd | Administration system for golf course |
| JPH01152677U (en) * | 1988-04-14 | 1989-10-20 | ||
| JPH045976A (en) * | 1990-04-23 | 1992-01-09 | Entech Internatl Co Ltd | Golf score recorder and method for linking said recorder with host computor |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608622A (en) * | 1983-06-28 | 1985-01-17 | Matsushita Electric Ind Co Ltd | Controller for bath |
| JPS60191128A (en) * | 1984-03-11 | 1985-09-28 | Mitsubishi Electric Corp | Control circuit for burner |
| JPH0221395U (en) * | 1988-07-28 | 1990-02-13 | ||
| JPH0221394U (en) * | 1988-07-28 | 1990-02-13 | ||
| JPH0221393U (en) * | 1988-07-28 | 1990-02-13 | ||
| JP2518869Y2 (en) * | 1988-09-08 | 1996-11-27 | 臼井国際産業株式会社 | T-type branch connection structure |
| JP2759313B2 (en) * | 1994-04-25 | 1998-05-28 | 伸誠商事株式会社 | Automatic vaporization type combustion device |
| JP6465732B2 (en) * | 2015-04-24 | 2019-02-06 | リンナイ株式会社 | Gas combustion equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS517738A (en) * | 1974-07-10 | 1976-01-22 | Sumitomo Shipbuild Machinery | HEDOROSHORIHOHO |
| JPS5290825A (en) * | 1976-01-26 | 1977-07-30 | Hitachi Heating Appliance Co Ltd | Flame detector |
| JPS54154836A (en) * | 1978-05-27 | 1979-12-06 | Omron Tateisi Electronics Co | Combustion controller |
| JPS5529347B2 (en) * | 1972-05-08 | 1980-08-02 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584041Y2 (en) * | 1978-03-13 | 1983-01-24 | オムロン株式会社 | Combustion control device |
| JPS602447Y2 (en) * | 1978-08-12 | 1985-01-23 | オムロン株式会社 | Combustion control device |
-
1979
- 1979-07-30 JP JP9708079A patent/JPS5620928A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5529347B2 (en) * | 1972-05-08 | 1980-08-02 | ||
| JPS517738A (en) * | 1974-07-10 | 1976-01-22 | Sumitomo Shipbuild Machinery | HEDOROSHORIHOHO |
| JPS5290825A (en) * | 1976-01-26 | 1977-07-30 | Hitachi Heating Appliance Co Ltd | Flame detector |
| JPS54154836A (en) * | 1978-05-27 | 1979-12-06 | Omron Tateisi Electronics Co | Combustion controller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01135378A (en) * | 1987-11-20 | 1989-05-29 | Sanyo Electric Co Ltd | Administration system for golf course |
| JPH01152677U (en) * | 1988-04-14 | 1989-10-20 | ||
| JPH045976A (en) * | 1990-04-23 | 1992-01-09 | Entech Internatl Co Ltd | Golf score recorder and method for linking said recorder with host computor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5620928A (en) | 1981-02-27 |
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