JPH0442571B2 - - Google Patents
Info
- Publication number
- JPH0442571B2 JPH0442571B2 JP5090689A JP5090689A JPH0442571B2 JP H0442571 B2 JPH0442571 B2 JP H0442571B2 JP 5090689 A JP5090689 A JP 5090689A JP 5090689 A JP5090689 A JP 5090689A JP H0442571 B2 JPH0442571 B2 JP H0442571B2
- Authority
- JP
- Japan
- Prior art keywords
- burner
- minimum
- thermocouple
- output
- proportional valve
- 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
- 238000000034 method Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
Landscapes
- Control Of Combustion (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、こんろバーナの最低ガス圧設定方法
に関し、特に、製造段階においてこんろバーナの
最低ガス圧を適正値に自動設定できるこんろバー
ナの最低ガス圧設定方法に関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method for setting the minimum gas pressure of a stove burner, and in particular, to a stove that can automatically set the minimum gas pressure of a stove burner to an appropriate value at the manufacturing stage. This invention relates to a method for setting the minimum gas pressure of a burner.
（従来の技術）
一般に、ガス器具の能力は、比例弁の電磁コイ
ルに流れる電流値と、比例弁の調整開度（二次
圧）との関係を予め実験により確認しておき、製
造段階ではガス比例弁への供給電力調整用の可変
ボリユームをその電流値に見合つた二次圧が得ら
れるように調整するという方法で設定される。(Prior art) In general, the capacity of gas appliances is determined by confirming the relationship between the current value flowing through the electromagnetic coil of the proportional valve and the adjusted opening degree (secondary pressure) of the proportional valve in advance through experiments. It is set by adjusting the variable volume for adjusting the power supplied to the gas proportional valve so as to obtain a secondary pressure commensurate with the current value.
（発明が解決しようとする課題）
しかしながら、この方法によれば、諸条件のバ
ラツキを考慮してある程度の余裕を持たして二次
圧を調整する必要があり、特に、最小出力となる
とろ火のガス圧を設定する場合には余裕を持たせ
ることにより出力が大きくなり過ぎることが少な
くない。(Problem to be solved by the invention) However, according to this method, it is necessary to adjust the secondary pressure with a certain amount of margin in consideration of variations in various conditions. When setting the gas pressure, it is not uncommon for the output to become too large if a margin is provided.
本発明は、上記の事情を考慮してなされたもの
であり、その目的とするところは、こんろバーナ
の最低ガス圧を適正値に自動設定することにあ
る。 The present invention has been made in consideration of the above circumstances, and its purpose is to automatically set the minimum gas pressure of a stove burner to an appropriate value.
（課題を解決するための手段）
本発明に係るこんろバーナの最低ガス圧設定方
法は、ガス圧を制御する比例弁の開度をマイコン
によつて制御するこんろバーナの最低ガス圧設定
方法を前提として、上記の目的を達成するため、
次のような手段を講じている。(Means for Solving the Problems) A method for setting the minimum gas pressure of a stove burner according to the present invention is a method for setting the minimum gas pressure of a stove burner in which the opening degree of a proportional valve that controls gas pressure is controlled by a microcomputer. To achieve the above purpose, assuming that
The following measures have been taken:
すなわち、バーナの炎検出用サーモカツプルを
設け、バーナを点火した後、バーナが消火される
まで比例弁の開度を次第に小さく絞りながらサー
モカツプルの出力を監視し、前記サーモカツプル
の出力の減少率が一定以下になるときにその出力
値VOFFを記憶させ、該記憶値に基づいて比例弁の
最小開度を設定する。 That is, a thermocouple for detecting the flame of the burner is provided, and after the burner is ignited, the output of the thermocouple is monitored while gradually reducing the opening of the proportional valve until the burner is extinguished, and the rate of decrease in the output of the thermocouple is determined. When V OFF becomes below a certain level, the output value V OFF is stored, and the minimum opening degree of the proportional valve is set based on the stored value.
（作用）
本発明においては、点火されたバーナの出力が
次第に絞られ、バーナが消火されるとサーモカツ
プルの出力が急激に減少する。したがつて、サー
モカツプルの出力の減少率が一定以下になること
を検出することにより、バーナの消火を検出で
き、その時のサーモカツプルの出力値VOFFに所定
の微小値αを加算した最低サーモカツプル出力が
得られる時の比例弁開度を最小開度とすることに
より、最低ガス圧を自動設定することができる。(Function) In the present invention, the output of the ignited burner is gradually reduced, and when the burner is extinguished, the output of the thermocouple is rapidly reduced. Therefore, extinguishing of the burner can be detected by detecting that the rate of decrease in the output of the thermocouple falls below a certain level, and the minimum thermocouple value obtained by adding a predetermined minute value α to the output value V OFF of the thermocouple at that time can be detected. By setting the proportional valve opening when a couple output is obtained as the minimum opening, the minimum gas pressure can be automatically set.
この方法は、製造後、出荷時に実施してもよ
く、あるいは設置後に設置箇所で実施してもよ
い。 This method may be performed after manufacturing, at the time of shipment, or at the installation site after installation.
（実施例）
以下、本発明を図例に基づき具体的に説明す
る。(Example) Hereinafter, the present invention will be specifically described based on illustrated examples.
第１図は本発明が適用されたガスこんろのガス
圧制御装置のガス及び電気回路を示す回路図であ
る。同図において、１はバーナ、２はガス圧を制
御する比例弁、３は元電磁弁、４は操作部、５は
マイコンを内蔵したコントローラ、６は大火能力
設定用ボリユーム、７はバーナの炎検出用サーモ
カツプルである。 FIG. 1 is a circuit diagram showing the gas and electric circuits of a gas pressure control device for a gas stove to which the present invention is applied. In the figure, 1 is a burner, 2 is a proportional valve that controls gas pressure, 3 is a solenoid valve, 4 is an operating section, 5 is a controller with a built-in microcomputer, 6 is a volume for setting the large flame capacity, and 7 is a flame of the burner. This is a thermocouple for detection.
前記の構成において、製造後、第２図に示すよ
うに、バーナ１を点火して大火能力設定ボリユー
ム６により従来と同様の方法で大火ガス圧を調整
した後、ガス圧を次第に低下させて中火、とろ火
での燃焼を経た後、操作部４の消火キーを操作す
る。これによりガスの供給が停止され、コントロ
ーラ５のマイコンで監視しているサーモカツプル
７の出力（起電力）の減少率は急激に大きくな
る。このサーモカツプル７の出力の減少率が所定
値よりも大きくなる時にその出力VOFFに所定値α
を加算した値がバーナ出力の最低値とされコント
ローラ５内にメモリに格納される。そして、この
最低値に対応する比例弁２の開度が比例弁２の最
小開度とされる。 In the above structure, after manufacturing, as shown in FIG. 2, the burner 1 is ignited and the large flame gas pressure is adjusted in the same manner as before using the large flame capacity setting volume 6, and then the gas pressure is gradually lowered to After burning with a fire or simmering flame, operate the extinguishing key on the operation unit 4. As a result, the gas supply is stopped, and the rate of decrease in the output (electromotive force) of the thermocouple 7, which is monitored by the microcomputer of the controller 5, rapidly increases. When the rate of decrease in the output of this thermocouple 7 becomes larger than a predetermined value, the output V OFF is set to a predetermined value α.
The value obtained by adding the values is determined as the minimum value of the burner output and is stored in the memory within the controller 5. Then, the opening degree of the proportional valve 2 corresponding to this minimum value is set as the minimum opening degree of the proportional valve 2.
この最小開度の設定は、製造工場内で実施して
も、設置現場で実施してもよい。ただし、製造工
場内で実施する場合には、コントローラ５内に設
定された最小開度のメモリが消去されないように
設置現場で電源に接続するまで電池等の電源によ
つてバツクアツプする必要がある。これに対し
て、設置現場で最小開度の設定する場合には、生
産段階での能力設定は大火の能力設定のみで済
み、調整工数を削減することができ、最小開度設
定のミスもなくせる。 The minimum opening degree may be set in the manufacturing factory or at the installation site. However, if it is carried out in a manufacturing factory, it is necessary to back up the memory of the minimum opening degree set in the controller 5 with a power source such as a battery until it is connected to the power source at the installation site so that the memory of the minimum opening degree set in the controller 5 is not erased. On the other hand, when setting the minimum opening degree at the installation site, the capacity setting at the production stage only requires setting the large fire capacity, which reduces adjustment man-hours and eliminates mistakes in setting the minimum opening degree. let
また、消火の度に最小開度の設定がし直される
ので、経年的に発生する諸条件の変化に対応して
最小開度を最適に変化させることができ、常時最
適の状態でこんろを使用できることになる。 In addition, since the minimum opening degree is reset each time a fire is extinguished, the minimum opening degree can be optimally changed in response to changes in various conditions that occur over time, and the stove is always kept in the optimal condition. It will be possible to use it.
上記の実施例では、消火キーを操作した後の消
火動作中に最小開度の自動設定が実行されている
が、消火キーを操作せずに次第に比例弁２の開度
を小さく絞つて失火させ、この失火時のサーモカ
ツプル７の出力VOFFに所定値αを加算した値をコ
ントローラ５内のメモリに格納するように構成し
てもよい。 In the above embodiment, the minimum opening is automatically set during the extinguishing operation after operating the extinguishing key, but the opening of the proportional valve 2 is gradually reduced to a small value without operating the extinguishing key to prevent a misfire. , a value obtained by adding a predetermined value α to the output V OFF of the thermocouple 7 at the time of this misfire may be stored in the memory within the controller 5.
（発明の効果）
以上のように、本発明のこんろバーナの最低ガ
ス圧設定方法によれば、バーナの消火あるいは失
火時に最低ガス圧の設定が自動的に実行される。
従つて、生産段階での最低ガス圧設定を省略し
て、調整工数を削減できるとともに、最小開度設
定のミスをなくせる。また、消火の度に最小開度
の設定がし直されるので、経年的に発生する諸条
件の変化に対応して最小開度を最適に変化させる
ことができ、常時最適の状態でこんろを使用でき
ることになる。(Effects of the Invention) As described above, according to the method for setting the minimum gas pressure for a stove burner of the present invention, the minimum gas pressure is automatically set when the burner is extinguished or misfires.
Therefore, setting the minimum gas pressure at the production stage can be omitted, reducing the number of adjustment steps and eliminating mistakes in setting the minimum opening. In addition, since the minimum opening degree is reset each time a fire is extinguished, the minimum opening degree can be optimally changed in response to changes in various conditions that occur over time, and the stove is always kept in the optimal condition. It will be possible to use it.
第１図は本発明の一実施例のガス及び電気回路
を示す回路図、第２図は起電力の変化を示すタイ
ムチヤートである。
１……バーナ、２……比例弁、５……コントロ
ーラ、７……サーモカツプル。
FIG. 1 is a circuit diagram showing a gas and electric circuit according to an embodiment of the present invention, and FIG. 2 is a time chart showing changes in electromotive force. 1... Burner, 2... Proportional valve, 5... Controller, 7... Thermocouple.
Claims (1)
ンピユータ（以下、マイコンという）によつて制
御するこんろバーナにおいて、バーナの炎検出用
サーモカツプルを設け、バーナを点火した後、バ
ーナが消化されるまで比例弁の開度を次第に小さ
く絞りながらサーモカツプルの出力を監視し、前
記サーモカツプルの出力の減少率が一定以下にな
る時にその出力値VOFFを記憶させ、消火のたび
に該記憶値に基づいて比例弁の最小開度を設定し
なおすことを特徴とするこんろバーナの最低ガス
圧設定方法。1. In a stove burner in which the opening degree of a proportional valve that controls gas pressure is controlled by a microcomputer (hereinafter referred to as a microcomputer), a thermocouple for detecting the flame of the burner is installed, and after the burner is ignited, the burner is extinguished. The output of the thermocouple is monitored while gradually reducing the opening of the proportional valve until it reaches a certain level, and when the rate of decrease in the output of the thermocouple falls below a certain level, the output value VOFF is memorized, and the memorized value is used every time the fire is extinguished. A method for setting the minimum gas pressure of a stove burner, characterized in that the minimum opening degree of a proportional valve is reset based on the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5090689A JPH02230013A (en) | 1989-02-28 | 1989-02-28 | Minimum gas pressure setting method of cooking stove burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5090689A JPH02230013A (en) | 1989-02-28 | 1989-02-28 | Minimum gas pressure setting method of cooking stove burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02230013A JPH02230013A (en) | 1990-09-12 |
| JPH0442571B2 true JPH0442571B2 (en) | 1992-07-13 |
Family
ID=12871809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5090689A Granted JPH02230013A (en) | 1989-02-28 | 1989-02-28 | Minimum gas pressure setting method of cooking stove burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02230013A (en) |
-
1989
- 1989-02-28 JP JP5090689A patent/JPH02230013A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02230013A (en) | 1990-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |