JPH01291017A - Device for capacity control of gas stove - Google Patents

Device for capacity control of gas stove

Info

Publication number
JPH01291017A
JPH01291017A JP63120896A JP12089688A JPH01291017A JP H01291017 A JPH01291017 A JP H01291017A JP 63120896 A JP63120896 A JP 63120896A JP 12089688 A JP12089688 A JP 12089688A JP H01291017 A JPH01291017 A JP H01291017A
Authority
JP
Japan
Prior art keywords
value
microcomputer
output
proportional valve
fire
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
Application number
JP63120896A
Other languages
Japanese (ja)
Other versions
JPH0689889B2 (en
Inventor
Tadaaki Kanbe
神戸　忠明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noritz Corp
Original Assignee
Noritz Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Noritz Corp filed Critical Noritz Corp
Priority to JP63120896A priority Critical patent/JPH0689889B2/en
Publication of JPH01291017A publication Critical patent/JPH01291017A/en
Publication of JPH0689889B2 publication Critical patent/JPH0689889B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/005—Regulating fuel supply using electrical or electromechanical 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
    • F23N2227/00—Ignition or checking
    • F23N2227/20—Calibrating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/36—Spark ignition, e.g. by means of a high voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/16—Fuel valves variable flow or proportional valves
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

PURPOSE:To enable a burner to produce flames at a fixed low level when the flames produced fall below a fixed appropriate level because of a change in the primary gas pressure during the use at a low fire by altering the setting of the level of fire to a value raised by a prescribed degree over the initially set value in such a manner as to cause the output of a flame sensor to reach a prescribed value. CONSTITUTION:A program for controlling low-fire operation is stored in a microcomputer 2; the microcomputer 2 reads the fire level selected through a fire level-altering switch 1, and after recognizing selection of a low fire level, the microcomputer 2 outputs a value prescribed for a low fire level to a proportional valve-drive circuit 6. The microcomputer 2 that reads the voltage outputted from a flame sensor 3 to determine whether the output from the flame sensor 3 is above or below a fixed value; if the output is above the fixed value, the combustion is continued without change in the condition; if not, the microcomputer 2 determines whether or not the value set and outputted to the proportional valve driver 6 is lower than a specified value so that, when the set value is found lower than the specified value, the value set and outputted by the microcomputer 2 is altered to what increases the output to a proportional valve 5 by a fixed value alpha over the previously set output.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、比例弁付きのガスコンロの能力制御装置に関
し、とろ火出力を一定の低能力に制御することができる
ガスコンロの能力制御装置に関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a capacity control device for a gas stove with a proportional valve, and more particularly, to a capacity control device for a gas stove that can control the simmering output to a constant low capacity. be.

（従来の技術） 一般に、比例弁付きのガスコンロの能力制御装置は、第
２図に示すように、能力清書スイッチ（１）と、マイク
ロコンピュータＣ以下、マイコンという）（２）と、サ
ーモカップルからなる炎検出器（３）と、炎検出器（３
）の出力を増幅する増幅器（４）と、比例弁（５）と、
比例弁（５）を駆動する比例弁ドライブ回路（６）とを
備えている。(Prior Art) In general, the capacity control device for a gas stove with a proportional valve, as shown in Fig. 2, consists of a capacity writing switch (1), a microcomputer C (hereinafter referred to as microcomputer) (2), and a thermocouple. flame detector (3) and flame detector (3)
), an amplifier (4) that amplifies the output of the proportional valve (5),
The proportional valve drive circuit (6) drives the proportional valve (5).

従来、前記マイコン（２）には、第３図に示すとろ火＃
ｌＷプログラムが組み込まれている。このとろ大制御プ
ログラムは、マイコン（２）が能力切替スイッチ（１）
により選択された能力を読み込み（Ｓｌ）　、この後と
ろ火が選択されていることを確認してから（Ｓ２）比例
弁ドライブ回路（６）にとろ火時の設定値を出力しく３
３）　、更に炎検知器（３）の出力電圧を読み込んでか
ら（Ｓ４）　、炎検知器（３）の出力が検知レベルか否
かを判別しくＳ５）、炎検出レベルに達しているときに
は燃焼を継続させ（Ｓ６）　、そうでないときには安全
動作に入って消火する（Ｓ７）ようになっている。Conventionally, the microcomputer (2) has a simmer # as shown in FIG.
The IW program is included. In this Torodai control program, the microcomputer (2) is the ability selector switch (1).
Read the capacity selected by (Sl), and after confirming that simmering is selected (S2), output the set value for simmering to the proportional valve drive circuit (6).
3) Furthermore, after reading the output voltage of the flame detector (3) (S4), it is determined whether the output of the flame detector (3) is at the detection level or not (S5), and if it has reached the flame detection level, combustion is detected. (S6), and if not, a safety operation is initiated to extinguish the fire (S7).

（発明が解決しようとする課題） この従来の比例弁付きのガスコンロの能力制棚装置によ
れば、とろ火運転をする時に炎検出器（３）の起電力が
炎検知レベルに達するようにとろ火時の二次ガス圧が決
定されている。しかしながら、とろ火運転時の比例弁（
５）の開度は一定に制御せんとしても一次ガス圧の変動
により二次ガス圧も変動して、とろ火時に所定ガス量が
バーナに供給されずに、安全動作して消火する問題があ
る。(Problem to be Solved by the Invention) According to this conventional capacity control device for a gas stove with a proportional valve, the electromotive force of the flame detector (3) reaches the flame detection level during the simmering operation. The secondary gas pressure has been determined. However, the proportional valve during simmering operation (
Even if the opening degree of 5) is not controlled to be constant, the secondary gas pressure will also fluctuate due to fluctuations in the primary gas pressure, causing a problem in which a predetermined amount of gas will not be supplied to the burner at the time of simmering, and the burner will operate safely and extinguish the fire.

本発明は、上記の事情に鑑み、−次ガス圧の変動が生じ
ても消火することなく一定のとろ大能力の使用が可能な
比例弁付きのガスコンロの能力制御装置を提供すること
を目的とするものである。In view of the above-mentioned circumstances, an object of the present invention is to provide a capacity control device for a gas stove with a proportional valve that allows use of a constant simmering capacity without extinguishing the fire even if fluctuations in the secondary gas pressure occur. It is something to do.

（課題を解決するための手段） 本発明によるガスコンロの能力制御装置は、前記の目的
を達成するために、バーナへのガス路に介設した比例弁
と、炎検出器と、バーナの能力を選択する能力留置スイ
ッチと、該能力切替スイッチにより選択された能力に対
応する設定値を比例弁に出力する制御器とを備え、当該
制御器はとろ火選択時に炎検出々力が所定値以下の場合
、所定量上回る設定値を比例弁に再度出力するようにし
た構成としである。(Means for Solving the Problem) In order to achieve the above object, the gas stove capacity control device according to the present invention includes a proportional valve interposed in the gas path to the burner, a flame detector, and a burner capacity control device. It is equipped with a capacity retention switch to select, and a controller that outputs a setting value corresponding to the capacity selected by the capacity changeover switch to a proportional valve, and the controller outputs a setting value corresponding to the capacity selected by the capacity changeover switch to a proportional valve, and when the flame detection force is less than a predetermined value when selecting a simmering flame. , the configuration is such that a set value exceeding a predetermined amount is output again to the proportional valve.

（作用） 本発明によれば、とろ火選択時−次ガス圧の変動により
バーナ能力がとろ火で設定された能力以下であれば炎検
知器の検出々力が所定値を下回るので、炎検知器の出力
が所定値となるまで設定値を初回の設定値よりも所定量
高い設定値に置き換えて比例弁の開度を段階的に大きく
し、炎検知器の出力が所定値となれば当該能力でとろ火
運転をすることができる。(Function) According to the present invention, when the flame detector is selected, if the burner capacity is less than the capacity set for the flame detector due to fluctuations in gas pressure, the detection power of the flame detector will be lower than the predetermined value. The opening of the proportional valve is gradually increased by replacing the set value with a set value higher than the initial set value by a predetermined amount until the output reaches the predetermined value, and when the output of the flame detector reaches the predetermined value, the flame detector output reaches the predetermined value. Able to drive at low speed.

（実施例） 以下、本発明を回倒に基づき具体的に説明する。(Example) Hereinafter, the present invention will be specifically explained based on rotation.

第１図は本発明の一実施例に係るガスコンロの制裸器と
してのマイコンに組みこまれたとろ火運転制御プログラ
ムの流れを示すフロー図であり、第２図は同例の要部構
成図である。FIG. 1 is a flowchart showing the flow of a simmering operation control program built into a microcomputer as a gas stove detector according to an embodiment of the present invention, and FIG. 2 is a diagram showing the main parts of the same example. be.

図において、（１）は能力切替スイッチ、（２）はマイ
コン、（３）は炎検出器としてのサーモカップル、（４
）は増幅回路、（５）は比例弁、（６）は比例弁ドライ
ブ回路、（７）はバーナ、（８）は元電磁弁である。前
記マイコン（２）の内部には次のようなとろ火運転制御
プログラムが組み込まれている。即ち、能力切替スイッ
チ（１）から選択された能力を読み込み（Ｓｌ）　、と
ろ火が選択されていることが確認された後（Ｓ２）比例
弁ドライブ回路（６）に予めとろ火に対応して設定しで
ある設定値を出力しくＳ３）、炎検出器（３）の出力電
圧を読み込み（Ｓ４）、炎検出器（３）の出力が所定値
以上か以下かを判別しくＳ５）　、所定値に達している
ときにはその状態で燃焼を継続させ（Ｓ６）　、そうで
ないときには、比例弁ドライバ（６）に出力された設定
値が所定の規定値よりも小さいか否かを判定しくＳ８）
、規定値よりも小さい時には比例弁（５）への出力を前
回設定値より所定値ヱだけ大きくなるようにマイコン（
２）から出力される設定値を切り替え（Ｓ９）、炎検出
器（３）の出力を判定する段階（Ｓ５）に戻る。また、
設定値が前記規定値（ガス圧低下時においても所定値以
上の炎検出々力が得られると予想される比例弁への出力
値）以上に大きい場合には、消火状部であるとして安全
動作が実行される（Ｓ７）。In the figure, (1) is a capacity selector switch, (2) is a microcomputer, (3) is a thermocouple as a flame detector, and (4) is a thermocouple as a flame detector.
) is the amplifier circuit, (5) is the proportional valve, (6) is the proportional valve drive circuit, (7) is the burner, and (8) is the original solenoid valve. The following simmering operation control program is incorporated inside the microcomputer (2). That is, the capacity selected from the capacity selector switch (1) is read (Sl), and after confirming that the simmering flame has been selected (S2), the proportional valve drive circuit (6) is set in advance to correspond to the simmering flame. output a set value (S3), read the output voltage of the flame detector (3) (S4), and determine whether the output of the flame detector (3) is above or below a predetermined value (S5), and reaches the predetermined value. If it is, the combustion is continued in that state (S6), and if it is not, it is determined whether the set value output to the proportional valve driver (6) is smaller than a predetermined specified value or not (S8).
, when it is smaller than the specified value, the microcomputer (
2) is switched (S9), and the process returns to the step (S5) of determining the output of the flame detector (3). Also,
If the set value is greater than the specified value (the output value to the proportional valve that is expected to provide flame detection force equal to or higher than the specified value even when the gas pressure drops), it is assumed that there is an extinguishing condition and safe operation is performed. is executed (S7).

上記の構成によれば、−次ガス圧の低下がない場合は初
回の設定値でとろ火運転が行われ、ガス圧低下時には比
例弁（５）の開度が段階的に増大されてサーモカップル
（３）の起電力が所定値に達する所定の能力でとろ火運
転がなされる。従って、−次ガス圧の変動による能力差
が解消されることになる。According to the above configuration, when there is no drop in the gas pressure, the simmering operation is performed at the initial setting value, and when the gas pressure drops, the opening degree of the proportional valve (5) is increased in stages, and the thermocouple ( The simmering operation is performed at a predetermined capacity in which the electromotive force of 3) reaches a predetermined value. Therefore, the difference in performance due to fluctuations in the negative gas pressure is eliminated.

（発明の効果） 以上のように、本発明によれば、とろ火運転時に、−次
ガス圧の変動が生じても一定のとろ大能力で調理が行え
、しかも−次ガス圧低下時に消火して調理不能となるこ
とがなく、従って本発明によれば極めて使用勝手の良い
ガスコンロを提供することができる。(Effects of the Invention) As described above, according to the present invention, cooking can be carried out at a constant simmering capacity even when there are fluctuations in the second gas pressure during simmering operation, and the fire is extinguished when the next gas pressure drops. Therefore, according to the present invention, it is possible to provide a gas stove that is extremely easy to use.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す制御フロー図、第２図
は回倒の要部構成図、第３図は従来例を示す制御フロー
図である。 （１）・・・能力切替スイッチ （２）・・・マイクロコンピュータ（制御器）（３）・
・・炎検出器 （５）・・・比例弁 （７）・・・バーナFIG. 1 is a control flow diagram showing an embodiment of the present invention, FIG. 2 is a configuration diagram of main parts of rotation, and FIG. 3 is a control flow diagram showing a conventional example. (1)... Capacity selection switch (2)... Microcomputer (controller) (3)
...Flame detector (5)...Proportional valve (7)...Burner

Claims (1)

【特許請求の範囲】[Claims] バーナへのガス路に介設した比例弁と、炎検出器と、バ
ーナの能力を選択する能力切替スイッチと、該能力切替
スイッチにより選択された能力に対応する設定値を比例
弁に出力する制御器とを備え、当該制御器はとろ火選択
時に炎検出々力が所定値以下の場合、所定量上回る設定
値を比例弁に再度出力するようにしたことを特徴とする
ガスコンロの能力制御装置。A proportional valve installed in the gas path to the burner, a flame detector, a capacity selector switch that selects the capacity of the burner, and a control that outputs a set value corresponding to the capacity selected by the capacity selector switch to the proportional valve. A capacity control device for a gas stove, characterized in that the controller is configured to re-output a set value exceeding a predetermined amount to a proportional valve if the flame detection force is less than a predetermined value when selecting a simmering flame.
JP63120896A 1988-05-17 1988-05-17 Gas colon capacity controller Expired - Lifetime JPH0689889B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63120896A JPH0689889B2 (en) 1988-05-17 1988-05-17 Gas colon capacity controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63120896A JPH0689889B2 (en) 1988-05-17 1988-05-17 Gas colon capacity controller

Publications (2)

Publication Number Publication Date
JPH01291017A true JPH01291017A (en) 1989-11-22
JPH0689889B2 JPH0689889B2 (en) 1994-11-14

Family

ID=14797677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63120896A Expired - Lifetime JPH0689889B2 (en) 1988-05-17 1988-05-17 Gas colon capacity controller

Country Status (1)

Country Link
JP (1) JPH0689889B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773409A1 (en) * 1995-11-13 1997-05-14 Whirlpool Europe B.V. System for automatically seeking the minimum power deliverable by gas-fired atmospheric burners
FR2787177A1 (en) * 1998-12-15 2000-06-16 Europ Equip Menager CONTROL DEVICE FOR A GAS BURNER
JP2014142119A (en) * 2013-01-24 2014-08-07 Harman Co Ltd Gas range

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773409A1 (en) * 1995-11-13 1997-05-14 Whirlpool Europe B.V. System for automatically seeking the minimum power deliverable by gas-fired atmospheric burners
FR2787177A1 (en) * 1998-12-15 2000-06-16 Europ Equip Menager CONTROL DEVICE FOR A GAS BURNER
WO2000036341A1 (en) * 1998-12-15 2000-06-22 Brandt Cooking Device for controlling a gas burner
JP2014142119A (en) * 2013-01-24 2014-08-07 Harman Co Ltd Gas range

Also Published As

Publication number Publication date
JPH0689889B2 (en) 1994-11-14

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