JPS59134425A - Combustion control device - Google Patents
Combustion control deviceInfo
- Publication number
- JPS59134425A JPS59134425A JP58008223A JP822383A JPS59134425A JP S59134425 A JPS59134425 A JP S59134425A JP 58008223 A JP58008223 A JP 58008223A JP 822383 A JP822383 A JP 822383A JP S59134425 A JPS59134425 A JP S59134425A
- Authority
- JP
- Japan
- Prior art keywords
- flame
- output
- microcomputer
- circuit
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
- F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2223/00—Signal processing; Details thereof
- F23N2223/08—Microprocessor; Microcomputer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2229/00—Flame sensors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
【発明の詳細な説明】
げ）産業上の利用分野
本発明にガス器具等燃焼器の燃焼制御装置なうもので、
特にマイクロコンピュータ馨用−た燃焼制御装置に関す
る。[Detailed description of the invention] G) Industrial application field The present invention relates to a combustion control device for a combustor such as a gas appliance,
In particular, the present invention relates to a combustion control device for use with a microcomputer.
（ロ）従来技術
湯沸器、調理器等のバーナの点滅ＮＵ帆ヲ行すう燃焼制
御装置で、特にマイクロコンピュータを用いたモ＋７）
でに、電界効果型トランジスタ（ＪａＴＩＥＴと称す）
等を用い、例えば炎の整流作用？利用して炎の有無を検
出する炎検出回路を少なくとも一対設け、その出力をマ
イクロコンピュータの入力に各々接続していた。その為
マイコンの暴走、クロック停止等マイコン自体の故障時
には、炎の有無に関係なく燃料供給を制約する電磁弁が
開いたままとなる等安全動作を行なえなくなる可能性が
ある。(b) Conventional technology A combustion control device that controls the blinking of burners in water heaters, cookers, etc., especially those using a microcomputer +7)
In addition, a field effect transistor (called JaTIET)
etc., for example, rectifying the flame? At least one pair of flame detection circuits were provided to detect the presence or absence of flame using the flame detector, and the outputs of the circuits were connected to the inputs of the microcomputer. Therefore, in the event of a malfunction of the microcomputer itself such as a runaway of the microcomputer or a clock stoppage, there is a possibility that the solenoid valve that restricts fuel supply may remain open regardless of the presence or absence of a flame, making it impossible to perform safe operations.
ｅＪ 発明の目的
本発明は上記の問題点に鑑み、マイコンの出力に関係な
く少なくとも失火時には燃料供給用の電磁弁２閉じて安
全１１Ｉｌｉ動作を行なう事乞目的とする。eJ OBJECTS OF THE INVENTION In view of the above-mentioned problems, the present invention aims to close the fuel supply solenoid valve 2 at least in the event of a misfire, regardless of the output of the microcomputer, to perform a safe operation.
に）発明の構成
本流明の構５ｙ、は、炎の有無を検出する為の炎検出回
路２少なくとも一対有しこの−１の出力Ｙマイクロコン
ビュ〜りの入力ボートに接続すると共に、他方の出力を
上記マイク９コンピユータ乞介することなくバーナへの
燃料流路を開閉する電磁弁の通電を制御する弁回路へ接
続して成るもので、バーナの失火時には他方の炎検出回
路の出力゛にて直接電磁弁を安全ｇＡ動作することで、
マイコンの不測の故障時にも失火時には確実に電磁弁を
閉成し得る・
（ホ）実施例
不発明の実施例を図面に基づき説明すると、（１）にス
トアードプロダラム方式の４ビツトマイコン（２）ヲ用
いたガスオーブン側副用の側副回路で、電源人力ＶＳＳ
Ｙ図示しない直流電源のグランドに接続し、電源人力Ｖ
ＧＧに同じくマイナス電源（−１２ｖ前後）を接続する
。そしてクロック入力ＣＬＯ，ＣＬ１には所定の発振回
路（３）を接続していると共に、−次巻線（４）２商用
の交流電源（５）に接続したトランス（６）の二次巻線
（７）を用いた交流信号源（８１ヲガスバーナ（９）の
炎孔ｔ１０１に配設したフレームロッド圓に接続し、刀
１つこＩＬをゲートに接続し炎の整流作用による整流信
号到来時に非導通するＦＢＴＩ１３Ｙ王に構成する、周
知の炎検出回路日の出力であるＦＥＴ（１２１のソース
を入カニ１１／ｉ：接続している。2) Structure of the Invention The main structure 5y of the invention has at least one pair of flame detection circuits 2 for detecting the presence or absence of a flame, and the output of this -1 is connected to the input port of the Y microcontroller, and the output of the other side is The microphone 9 is connected to the valve circuit that controls the energization of the solenoid valve that opens and closes the fuel flow path to the burner without intervening the computer, and when the burner misfires, it is directly connected to the output of the other flame detection circuit. By operating the solenoid valve safely,
Even in the event of an unexpected failure of the microcomputer, the solenoid valve can be reliably closed in the event of a misfire. ) The side circuit for the gas oven side using the power source VSS
Y Connect to the ground of the DC power supply (not shown), and connect the power supply to the human power V
Similarly, connect the negative power supply (around -12v) to GG. A predetermined oscillation circuit (3) is connected to the clock inputs CLO and CL1, and the secondary winding (4) of the transformer (6) is connected to the commercial AC power supply (5). 7) using an AC signal source (81) is connected to the flame rod circle placed in the flame hole t101 of the gas burner (9), and one sword IL is connected to the gate, and it becomes non-conductive when a rectification signal arrives due to the rectification effect of the flame. The output of a well-known flame detection circuit configured in FBTI13Y is a FET (121 source) connected to input crab 11/i.
ｕ４１ｒよ上記と同じ構成から成る他の炎検出回路で、
その出力であるＦＥＴσｊのソースにダイオード（１６
）を介して抵抗ｆｉ７１（ＩＩｃとコンデンサ（１９か
ら成るＣＲタイマー（イ）を接続していると共に、この
ＣＲタイマーにはコレクタをマイコン（２）の出力０１
に接続し几トランジスタＱカのベースにツェナーダイオ
ード＠ン介して接続している。父上記トランジスタＱ１
）のコレクタにはコレクタにフォトカプラのＬＥＤ（財
）χ接続シ友トランジスタ（ハ）のベースを接続してい
ると共に、このトランジスタのエミッタにはベース音マ
イコン（２）の出力０２に接続したトランジスタ（イ）
のコレクタに接続している。そして上記フォトカプラの
フォトトランジスタ（ホ）のエミッタ出力に、上記ガス
バーナ（９）への燃料流路ｖ）ＶＣ設けた電磁弁翰に直
列接続しこ几の通’ｆｉ、ｗ制側するトランジスタ翰の
ベースに接続して弁回路（７）を構成して成る。尚上記
電磁弁（ハ）等・＼は交流電源（５）ヲ整流器ｃｌ］）
にて整流して供給している。U41r, another flame detection circuit with the same configuration as above,
A diode (16
) is connected to a CR timer (A) consisting of a resistor fi71 (IIc) and a capacitor (19), and the collector of this CR timer is connected to the output 01 of the microcomputer (2).
It is connected to the base of the transistor Q via a Zener diode. Father above transistor Q1
) is connected to the base of a photocoupler LED χ-connected transistor (c), and the emitter of this transistor is a transistor connected to the output 02 of the base sound microcontroller (2). (stomach)
is connected to the collector of The emitter output of the phototransistor (e) of the photocoupler is connected in series to the solenoid valve wire provided with a fuel flow path v) VC to the gas burner (9), and the transistor wire on the controlling side is The valve circuit (7) is configured by connecting to the base of the valve circuit (7). In addition, the above solenoid valve (c), etc. \ is the AC power supply (5) rectifier cl])
It is rectified and supplied.
更に入カニ２にに常閉のタイマスイッチ１４’ａ’接続
し、こ几より調理動作を取り込んでいる。−は調理が終
了してタイマスイッチ（至）が閉成時にＣＲタイマー圓
のコンデンサ（１１’放電させる放電用ダイオード、（
財）は同じく放電用のダイオードで、負荷の温度検出回
路等に接続され、負荷が設定温度に達するとこｒｂｙ介
してコンデンサ←３を放電させ電磁弁（ホ）を閉じて温
度側ｉ！ｒｉＩを行なうものである。Furthermore, a normally closed timer switch 14'a' is connected to the incoming crab 2, and the cooking operation is taken in from this switch. - is a discharge diode that discharges the capacitor (11') of the CR timer circle when the timer switch (to) is closed after cooking is completed;
Similarly, the diode for discharging is connected to the load's temperature detection circuit, etc., and when the load reaches the set temperature, it discharges the capacitor ← 3 via rby and closes the solenoid valve (e) to close the temperature side i! This is to perform riI.
而してタイマスイッチω乞開いて調理？開始すると、一
定時間出力０１．０２にハイとなりトランジスタ０４（
イ）乞オンしてＬＥＤ（ハ）に通電し、゛電磁弁（ハ）
乞開いて同時にガスバーナ（９）の点火動作２行なう。So, open the timer switch and cook? When it starts, the output becomes high at 01.02 for a certain period of time, and the transistor 04 (
b) Turn on the LED (c) and energize the solenoid valve (c).
At the same time, two ignition operations of the gas burner (9) are performed.
この時点火しなけルは出力０１，０２ｉローとなりトラ
ンジスタ（ハ）乞オフしてＬＥＤＩ２３への通電を停止
し電磁弁（至）を閉じる。At this point, the outputs 01 and 02i become low, and the transistor (c) is turned off to stop energizing the LEDI 23 and close the solenoid valve (to).
−万点火さ几るとＦＥＴｕＺｆ１５１がカットオフして
有炎信号乞入カニ１に出力すると共に、ＣＲタイマーＬ
Ｑ）のコンデンサ←８の充電を阻止しトランジスタ０２
υをオフしてトランジスタ（ハ）ン継続してオンし電磁
弁（ハ）乞開き続ける。尚出力Ｑ１．Ｑ２に上記入カニ
１からの信号により一足時間後もハイ出力ｔ−ｉ’ａ。- After 10,000 ignitions, FETuZf151 cuts off and outputs a flame signal to Crab 1, and CR timer L
Q) capacitor ← prevents charging of transistor 02
Turn off υ, keep the transistor (H) on, and keep the solenoid valve (C) open. Furthermore, the output Q1. In Q2, the signal from Crab 1 causes a high output t-i'a even after one foot period.
又マイコンの異常動作により失火時に出力０１．０２が
ハイの時には、他の炎検出回路（１４１のＦＫＴ（１５
１のオンによりＣＲタイマー（イ）のコンデンサ（１ｇ
Ｉが充電され、ツェナーダイオード（イ）のしきい値以
上に成るとトランジスタ（ロ）がオンしてトランジスタ
（ハ）をオフし、ＬＫＤに）への通電を停止して′ｒｄ
磁弁Ｏｅ乞閉じ安全体制ａｎｖ行なう。従ってＣＲタイ
マー（２■の設定時間にバーナ（９）の点火動作時に出
力０１．０２７一定時間ハイにする時間よりも陽く設定
する。Also, when the output 01.02 is high at the time of misfire due to abnormal operation of the microcomputer, other flame detection circuits (141 FKT (15
1 is turned on, the CR timer (A) capacitor (1g
When I is charged and exceeds the threshold value of the Zener diode (A), the transistor (B) turns on, turns off the transistor (C), and stops the current supply to LKD.
Perform magnetic valve Oe and close safety system anv. Therefore, the set time of the CR timer (2) is set to be more positive than the time during which the output 01.027 is kept high for a certain period of time during the ignition operation of the burner (9).
（へ）発明の効果
上記本発明構成によ！１１．マイコンの故障により失火
時にも係わらず出力よジ有炎信号が出力さルても他の炎
検出回路の出力にて直接電磁弁を閉成することで、マイ
コンの不測の異常動作時にも安全制阻乞行なうことがで
きる。(f) Effects of the invention Due to the above-mentioned configuration of the present invention! 11. Even if a flame signal is output due to a misfire due to a microcomputer failure, the solenoid valve is directly closed by the output of another flame detection circuit, so safety control is maintained even in the event of an unexpected abnormal operation of the microcomputer. You can impede.
図面は本発明による燃焼制御装置の回路図である。
（２１・・・マイクロコンピュータ、＋９１・・・ガス
バーナ、１１３１ｔ１４・・・炎検出回路、（７）・・
・弁回路。The drawing is a circuit diagram of a combustion control device according to the present invention. (21...Microcomputer, +91...Gas burner, 1131t14...Flame detection circuit, (7)...
・Valve circuit.
Claims (1)
一対有しこの−１の出方をマイクロコンピュータの入力
に接続すると共に、他方の出方と上記マイクｏ コｙヒ
ュータを介することなくバーナヘノ燃料流路全開閉する
電磁弁の通電を制卸する弁回路へ接玩して成る燃焼制御
装置。+11 It has at least one pair of flame detection circuits that detect the presence or absence of flame, and the -1 output is connected to the input of the microcomputer, and the other output and the above-mentioned microphone are connected to the burner fuel flow path without going through the heater. A combustion control device connected to a valve circuit that controls the energization of a solenoid valve that fully opens and closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58008223A JPS59134425A (en) | 1983-01-20 | 1983-01-20 | Combustion control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58008223A JPS59134425A (en) | 1983-01-20 | 1983-01-20 | Combustion control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59134425A true JPS59134425A (en) | 1984-08-02 |
| JPS6243099B2 JPS6243099B2 (en) | 1987-09-11 |
Family
ID=11687179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58008223A Granted JPS59134425A (en) | 1983-01-20 | 1983-01-20 | Combustion control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59134425A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61128026A (en) * | 1984-11-27 | 1986-06-16 | Hanshin Electric Co Ltd | Safety circuit for combustion controlling device |
| CN110657459A (en) * | 2018-06-28 | 2020-01-07 | 三美电机株式会社 | Semiconductor integrated circuit device for electronic control and electronic control device for gas range |
-
1983
- 1983-01-20 JP JP58008223A patent/JPS59134425A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61128026A (en) * | 1984-11-27 | 1986-06-16 | Hanshin Electric Co Ltd | Safety circuit for combustion controlling device |
| JPH0151741B2 (en) * | 1984-11-27 | 1989-11-06 | Hanshin Electrics | |
| CN110657459A (en) * | 2018-06-28 | 2020-01-07 | 三美电机株式会社 | Semiconductor integrated circuit device for electronic control and electronic control device for gas range |
| CN110657459B (en) * | 2018-06-28 | 2023-09-12 | 三美电机株式会社 | Semiconductor integrated circuit device for electronic control and electronic control device for gas range |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6243099B2 (en) | 1987-09-11 |
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