JP3740734B2 - Control device - Google Patents

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Publication number
JP3740734B2
JP3740734B2 JP08125496A JP8125496A JP3740734B2 JP 3740734 B2 JP3740734 B2 JP 3740734B2 JP 08125496 A JP08125496 A JP 08125496A JP 8125496 A JP8125496 A JP 8125496A JP 3740734 B2 JP3740734 B2 JP 3740734B2
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Japan
Prior art keywords
gas
switch
combustion
adjustment
amount
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JP08125496A
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Japanese (ja)
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JPH09273746A (en
Inventor
貴則 上村
隆生 浅田
幸夫 坂口
雅由 大垣
隆 志▲れい▼
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP08125496A priority Critical patent/JP3740734B2/en
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  • Control Of Fluid Pressure (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、家庭用給湯器の制御装置に関するものである。
【0002】
【従来の技術】
従来、例えば、ガス給湯器では、最小燃焼量と最大燃焼量のそれぞれガス燃焼量(以後ガス2次圧と呼ぶ)を調圧する際、調整モードスイッチで各燃焼状態にし、調圧スイッチによりガス2次圧を変化させ、ガス2次圧を設計通りの値に調整していた。
【0003】
【発明が解決しようとする課題】
しかし、従来の2次圧調整方法では調圧アップスイッチ、調圧ダウンスイッチが押された時ガス2次圧を増減させていたのでは、調圧アップスイッチ、調圧ダウンスイッチそれぞれをショート検知する必要があり、ガス2次圧を増減させるため安全でないという課題があった。
【0004】
本発明は、上記課題を解決するもので、調圧アップスイッチと調圧ダウンスイッチが一度押して離されたことを検出することにより調圧スイッチのショート検知する必要がなく、ガス比例弁の2次圧の調整を安全に行うことを主目的とする。
【0005】
【課題を解決するための手段】
本発明の制御装置においては、給湯器のガス燃焼量を調整するガス比例弁と、前記ガス比例弁を駆動制御するガス比例弁回路と、前記ガス比例弁回路にガス燃焼量に対応した電気信号を出力するガス燃焼量制御手段と、前記ガス燃焼量を増加させるときに操作する調圧アップスイッチと、前記ガス燃焼量を減少させるときに操作する調圧ダウンスイッチと、前記調圧スイッチを一度押してから離したことを検知するエッジ確定手段と、特定の燃焼条件で燃焼を行う複数の燃焼モードから所定の燃焼モードに切り換える調整モードスイッチと、前記調整モードスイッチにより選択された燃焼モードにおける調整後のガス燃焼量を記憶する2次圧調整量記憶エリアを有するとともに、前記調圧スイッチの一回の操作で変化するガス燃焼量を記憶した2次圧変化量記憶エリアを有した不揮発性メモリーとを備え、前記調整モードスイッチにより選択された燃焼モードに応じて前記2次圧変化量記憶エリアに記憶された変化量を用いて前記調圧スイッチによりガス燃焼量の調整を行うようにしたものである。
【0006】
この本発明によれば、調圧スイッチのショート検知をする必要がなく、ガス比例弁の2次圧の調整を安全に行うことができるという効果がある。また、燃焼モードに応じて調圧スイッチの一回の操作に対する重み付けを行うことで、調整スイッチによるガス燃焼量調整の操作性を向上することができるという効果がある。
【0007】
【発明の実施の形態】
上記目的を達成するために本発明の制御装置は、給湯器のガス燃焼量を調整するガス比例弁と、前記ガス比例弁を駆動制御するガス比例弁回路と、前記ガス比例弁回路にガス燃焼量に対応した電気信号を出力するガス燃焼量制御手段と、前記ガス燃焼量を増加させるときに操作する調圧アップスイッチと、前記ガス燃焼量を減少させるときに操作する調圧ダウンスイッチと、前記調圧スイッチを一度押してから離したことを検知するエッジ確定手段と、特定の燃焼条件で燃焼を行う複数の燃焼モードから所定の燃焼モードに切り換える調整モードスイッチと、前記調整モードスイッチにより選択された燃焼モードにおける調整後のガス燃焼量を記憶する2次圧調整量記憶エリアを有するとともに、前記調圧スイッチの一回の操作で変化するガス燃焼量を記憶した2次圧変化量記憶エリアを有した不揮発性メモリーとを備え、前記調整モードスイッチにより選択された燃焼モードに応じて前記2次圧変化量記憶エリアに記憶された変化量を用いて前記調圧スイッチによりガス燃焼量の調整を行うようにしたものである。
【0008】
上記実施の形態により本発明の制御装置は、調圧アップスイッチと調圧ダウンスイッチが一度押して離されたことを検出することにより操作が行われたことを判定するようにしているため、前記調圧スイッチのショート検知する必要がなく、ガス比例弁の2次圧の調整を安全に行うことができる。また、燃焼モードに応じて調圧スイッチの一回の操作に対する重み付けを行うことで、調整スイッチによるガス燃焼量調整の操作性を向上することができる。
【0009】
以下、本発明の制御装置の実施例について説明する。
【0010】
図1は、本発明の一実施例としての給湯器の制御装置である。給湯器12の構成は、必要なガス量をガスバーナ4に供給するガス比例弁1と、ガス比例弁1を制御するガス比例弁回路2と、必要なガス量をガス比例弁2に出力するガス燃焼量制御手段3と、ガス比例弁1から供給されるガス量を燃焼させるガスバーナ4と、ガス燃焼量制御手段3から出力
させるガス燃焼量を増加させる調圧アップスイッチ5とガス燃焼量制御手段3から出力させるガス燃焼量を減少させる調圧ダウンスイッチ6と、調圧アップスイッチ5と調圧ダウンスイッチ6が一度押されて離されるエッジを判定するエッジ確定手段7と、調圧アップスイッチ5と調圧ダウンスイッチ6とエッジ確定手段7により、増減されたガス燃焼量制御手段3から出力されるガス燃焼量が一定量以上または以下の場合、ガス燃焼量に制限をかけるガス調整量制限手段8と、ガス燃焼量調整時、ガス燃焼量制御手段3にガス燃焼量の状態を切換させる調整モードスイッチ9と、調整モードスイッチ9による燃焼状態切換時、各燃焼状態のガス2次圧値を記憶させる不揮発性メモリ10と、調圧アップスイッチ5と調圧ダウンスイッチ6とエッジ確定手段7によりガス燃焼量を増減させる際、一回の操作でガス2次圧値の変化量を固定値として記憶させる不揮発性メモリ11と、ガス2次圧値を記憶させる不揮発性メモリ10にガス燃焼量制御手段3のガス2次圧値を記憶させる不揮発性メモリ書き込み手段14と、調整モードスイッチ9の切換えがあった場合不揮発性メモリ書き込み手段14にガス燃焼量制御手段3のガス2次圧値を書き込む要求を行う切換え判定手段13から構成される。
【0011】
以下、本実施例の動作について説明する。調圧アップスイッチ5をON/OFF一回操作すると、エッジ確定手段7により調圧アップスイッチ5の立ち上がりエッジを確定する。次にガス燃焼量制御手段3によりガス2次圧値を増加させ、ガス比例弁回路2を介してガス比例弁1へ出力される。
【0012】
また、調圧ダウンスイッチ6をON/OFF一回操作すると、エッジ確定手段7により調圧ダウンスイッチ6の立ち上がりエッジを確定する。次にガス燃焼量制御手段3によりガス2次圧値を減少させ、ガス比例弁回路2を介してガス比例弁1へ出力される。
【0013】
次に、調圧モードスイッチ9について説明する。燃焼モードはバーナの本数とTDR、MAXというモードが存在する。3本のガスバーナ4の場合だと1/3TDR(1本の最小燃焼)、1/3MAX(1本の最大燃焼)、2/3TDR(2本の最小燃焼)、2/3MAX(2本の最大燃焼)、3/3TDR(3本の最小燃焼)、3/3MAX(3本の最大燃焼)というように6通り燃焼モードが存在する。
【0014】
調整モードスイッチ9により所定のガス燃焼モード(たとえば1/3TDR燃焼)にする。ガス2次圧を設定値にするため、調圧アップスイッチ5、調圧ダウンスイッチ6により複数回、ON/OFF操作を繰り返し、ガス燃焼量を調整する。
【0015】
ガス2次圧が設定値になると、調整モードスイッチ9を別のモードに切り換える(たとえば1/3MAX燃焼)と、切換判定手段13より、不揮発性メモリ書き込み手段14に書き込み要求を行い、左記で調整したガス2次圧値を調整モード切換前(1/3TDR)の値とし、不揮発性メモリの2次圧調整量記憶エリア10に書き込み(1/3TDRのエリアに書き込む)、調整した値を記憶しておく。
【0016】
また、上記操作において、調圧アップスイッチ5をON/OFF一回操作すると、エッジ確定手段7により調圧アップスイッチ5の立ち上がりエッジを確定し、次にガス燃焼量制御手段3によりガス2次圧値を増加させるが、増加させたガス2次圧値が増加方向一定値以上の場合、ガス調整量制限手段8によりガス2次圧に制限を加える。制限のかかった2次圧値を、ガス比例弁回路2を介してガス比例弁1へ出力される。
【0017】
また、ガス2次圧値を減少させる場合も同様に、調圧ダウンスイッチ6をON/OFF一回操作すると、エッジ確定手段7により調圧ダウンスイッチ6の立ち上がりエッジを確定する。
【0018】
次にガス燃焼量制御手段3によりガス2次圧値を減少させるが、減少させたガス2次圧値が減少方向一定値以下の場合、ガス調整量制限手段8によりガス2次圧に制限を加える。制限のかかった2次圧値を、ガス比例弁回路2を介してガス比例弁1へ出力される。
次に、不揮発性メモリについて説明する。不揮発性メモリには、調整後の2次圧値を記憶する2次圧調整量記憶エリア10と、調圧スイッチの一回の操作により変化するガス2次圧値の変化量を記憶した2次圧変化量記憶エリア11を有しており、調圧スイッチが操作されると前記2次圧変化量記憶エリア11に記憶された所定のガス2次圧値の変化量を用いて調整が行われる、つまり、調圧アップスイッチ5をON/OFF一回操作すると、エッジ確定手段7により調圧アップスイッチ5の立ち上がりエッジを確定する。立ち上がりエッジが確定されると不揮発性メモリの2次圧変化量記憶エリア11に記憶されている、一回の操作によるガス2次圧値の変化量分、ガス2次圧値を増加する。
【0019】
次にガス燃焼量制御手段3によりガス2次圧値を増加させ、ガス調整量制限手段8により、増加させたガス2次圧値が増加方向一定値以上の場合ガス2次圧に制限を加える。制限のかかった2次圧値を、ガス比例弁回路2を介してガス比例弁1へ出力される。
【0020】
また、ガス2次圧値を減少させる場合も同様に、調圧ダウンスイッチ6をON/OFF一回操作すると、エッジ確定手段7により調圧ダウンスイッチ6の立ち上がりエッジを確定する。立ち上がりエッジが確定されると不揮発性メモリの2次圧変化量記憶エリア11に記憶されている、一回の操作によるガス2次圧値の変化量分、ガス2次圧値を減少する。
【0021】
次にガス燃焼量制御手段3によりガス2次圧値を減少させ、ガス調整量制限手段8により、減少させたガス2次圧値が減少方向一定値以下の場合ガス2次圧に制限を加える。制限のかかった2次圧値を、ガス比例弁回路2を介してガス比例弁1へ出力される。
【0022】
次に、上記動作を調圧モードスイッチ9の操作と関連付けて説明する。調整モードスイッチ9を2/3TDRに切換し、調圧アップスイッチ5をON/OFF一回操作すると、エッジ確定手段7により調圧アップスイッチ5の立ち上がりエッジを確定する。
【0023】
立ち上がりエッジが確定されると不揮発性メモリの2次圧変化量記憶エリア11に記憶されている、燃焼モードがTDRの場合に調圧スイッチの一回の操作により変化するガス2次圧値の変化量を用いてガス2次圧値を増加する。次にガス燃焼量制御手段3によりガス2次圧値を増加させ、調整量制限手段8により、増加させたガス2次圧値が増加方向一定値以上の場合ガス2次圧に制限を加える。制限のかかった2次圧値を、ガス比例弁回路2を介してガス比例弁1へ出力される。
【0024】
また、ガス2次圧値を減少させる場合も同様に、調圧ダウンスイッチ6をON/OFF一回操作すると、エッジ確定手段7により調圧ダウンスイッチ6の立ち上がりエッジを確定する。立ち上がりエッジが確定されると不揮発性メモリの2次圧変化量記憶エリア11に記憶されている、燃焼モードがTDRの場合に調圧スイッチの一回の操作により変化するガス2次圧値の変化量を用いてガス2次圧値を減少する。
【0025】
次にガス燃焼量制御手段3によりガス2次圧値を減少させ、調整量制限手段8により、減少させたガス2次圧値が減少方向一定値以下の場合ガス2次圧に制限を加える。制限のかかった2次圧値を、ガス比例弁回路2を介してガス比例弁1へ出力される。上記操作を行い2/3TDRの値を設定値に調整する。
【0026】
次に、調整モードスイッチ9を2/3MAXに切換し、調圧アップスイッチ5をON/OFF一回操作すると、エッジ確定手段7により調圧アップスイッチ5の立ち上がりエッ
ジを確定する。立ち上がりエッジが確定されると不揮発性メモリの2次圧変化量記憶エリア11に記憶されている、燃焼モードがMAXの場合に調圧スイッチの一回の操作により変化するガス2次圧値の変化量を用いてガス2次圧値を増加する。
【0027】
次にガス燃焼量制御手段3によりガス2次圧値を増加させ、調整量制限手段8により、増加させたガス2次圧値が増加方向一定値以上の場合ガス2次圧に制限を加える。制限のかかった2次圧値を、ガス比例弁回路2を介してガス比例弁1へ出力される。
【0028】
また、ガス2次圧値を減少させる場合も同様に、調圧ダウンスイッチ6をON/OFF一回操作すると、エッジ確定手段7により調圧ダウンスイッチ6の立ち上がりエッジを確定する。立ち上がりエッジが確定されると不揮発性メモリの2次圧変化量記憶エリア11に記憶されている、燃焼モードがMAXの場合に調圧スイッチの一回の操作により変化するガス2次圧値の変化量を用いてガス2次圧値を減少する。
【0029】
次にガス燃焼量制御手段3によりガス2次圧値を減少させ、調整量制限手段8により、減少させたガス2次圧値が減少方向一定値以下の場合ガス2次圧に制限を加える。制限のかかった2次圧値を、ガス比例弁回路2を介してガス比例弁1へ出力される。上記操作を行い2/3MAXの値を設定値に調整する。このように、調圧モードスイッチ9により切り換えられた燃焼モードに応じて不揮発性メモリの2次圧変化量記憶エリア11に記憶さ れている調圧スイッチの一回の操作により変化するガス2次圧値の変化量を用いて調整を行うようにしているため、燃焼モード(例えば、TDR、MAX)に応じて調圧スイッチの一回の操作に対する重み付け(TDRは細かく、MAXは粗く)をして不揮発性メモリの2次圧変化量記憶エリア11に記憶させることで、調圧スイッチの一回の操作の割合を燃焼モード(TDR、MAX)に応じて適正に設定することができる。
【0030】
【発明の効果】
以上の説明から明らかなように、本発明の制御装置は、調圧アップスイッチと調圧ダウンスイッチが一度押して離されたことを検出することにより操作が行われたことを判定するようにしているため、前記調圧スイッチのショート検知する必要がなく、ガス比例弁の2次圧の調整を安全に行うことができる効果がある。また、燃焼モードに応じて調圧スイッチの一回の操作に対する重み付けを行うことで、調整スイッチによるガス燃焼量調整の操作性を向上することができる。
【図面の簡単な説明】
【図1】 本発明の実施例における制御装置のブロック図
【符号の説明】
1 ガス比例弁
2 ガス比例弁回路
3 ガス燃焼量制御手段
4 ガスバーナ
5 調圧アップスイッチ
6 調圧ダウンスイッチ
7 エッジ確定手段
8 ガス調整量制御手段
9 調整モードスイッチ
10 不揮発性メモリ(2次圧調整量記憶エリア)
11 不揮発性メモリ(2次圧変化量記憶エリア)
12 給湯器
13 調整モード切換え判定手段
14 不揮発性メモリ書き込み手段
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a control device for a domestic water heater.
[0002]
[Prior art]
Conventionally, for example, in a gas water heater, when adjusting the gas combustion amount (hereinafter referred to as the gas secondary pressure) of the minimum combustion amount and the maximum combustion amount, each combustion state is set by the adjustment mode switch, and the gas 2 is set by the pressure adjustment switch. The secondary pressure was changed and the secondary gas pressure was adjusted to the designed value.
[0003]
[Problems to be solved by the invention]
However, in the conventional secondary pressure adjustment method, when the pressure adjustment up switch and the pressure adjustment down switch are pressed, the gas secondary pressure is increased or decreased. There is a problem that it is necessary to increase or decrease the gas secondary pressure, which is not safe.
[0004]
The present invention solves the above-mentioned problem, and it is not necessary to detect a short-circuit of the pressure regulation switch by detecting that the pressure regulation up switch and the pressure regulation down switch are once pressed and released, and the secondary of the gas proportional valve is eliminated. The main purpose is to adjust the pressure safely.
[0005]
[Means for Solving the Problems]
In the control device of the present invention, a gas proportional valve that adjusts the gas combustion amount of the water heater, a gas proportional valve circuit that drives and controls the gas proportional valve, and an electric signal corresponding to the gas combustion amount in the gas proportional valve circuit once the gas combustion amount control means for outputting a pressure regulating up switch to be operated when increasing the gas combustion amount, and the pressure regulating down switch operated to reduce the gas combustion amount, the pressure regulating switch Edge determining means for detecting release after pressing, an adjustment mode switch for switching from a plurality of combustion modes in which combustion is performed under specific combustion conditions to a predetermined combustion mode, and after adjustment in the combustion mode selected by the adjustment mode switch And a secondary pressure adjustment amount storage area for storing the amount of gas combustion, and also stores the amount of gas combustion that changes with a single operation of the pressure adjustment switch. And a non-volatile memory having a secondary pressure change amount storage area, said pressure regulating using the variation stored in the secondary pressure change amount storage area in accordance with the combustion mode selected by the adjustment mode switch The gas combustion amount is adjusted by a switch.
[0006]
According to the present invention, there is no need to detect a short circuit of the pressure adjustment switch, and there is an effect that the secondary pressure of the gas proportional valve can be adjusted safely. In addition, by performing weighting for one operation of the pressure adjustment switch according to the combustion mode, there is an effect that the operability of gas combustion amount adjustment by the adjustment switch can be improved.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In order to achieve the above object, a control device of the present invention includes a gas proportional valve that adjusts a gas combustion amount of a water heater, a gas proportional valve circuit that drives and controls the gas proportional valve, and gas combustion in the gas proportional valve circuit. a gas combustion amount control means for outputting an electric signal corresponding to the amount, the pressure regulating up switch to be operated when increasing the gas combustion amount, and the pressure regulating down switch operated to reduce the gas combustion amount, An edge determination means for detecting that the pressure adjustment switch has been pressed once and then released, an adjustment mode switch for switching from a plurality of combustion modes in which combustion is performed under a specific combustion condition to a predetermined combustion mode, and the adjustment mode switch. And a secondary pressure adjustment amount storage area for storing the adjusted gas combustion amount in the combustion mode, and a gas that changes with a single operation of the pressure adjustment switch. And a non-volatile memory having a secondary pressure change amount storage area for storing the combustion rate, the amount of change stored in the secondary pressure change amount storage area according to the selected combustion mode by the adjustment mode switch The gas combustion amount is adjusted by the pressure control switch.
[0008]
According to the above embodiment, the control device of the present invention determines that an operation has been performed by detecting that the pressure adjustment up switch and the pressure adjustment down switch have been pressed once and released. There is no need to detect a short circuit of the pressure switch, and the secondary pressure of the gas proportional valve can be adjusted safely. Moreover, the operability of the gas combustion amount adjustment by the adjustment switch can be improved by weighting one operation of the pressure adjustment switch according to the combustion mode.
[0009]
Hereinafter, embodiments of the control device of the present invention will be described.
[0010]
FIG. 1 shows a control apparatus for a water heater as an embodiment of the present invention. The configuration of the water heater 12 includes a gas proportional valve 1 that supplies a necessary gas amount to the gas burner 4, a gas proportional valve circuit 2 that controls the gas proportional valve 1, and a gas that outputs the necessary gas amount to the gas proportional valve 2. Combustion amount control means 3, gas burner 4 that combusts the gas amount supplied from the gas proportional valve 1, pressure adjustment up switch 5 that increases the gas combustion amount output from the gas combustion amount control means 3, and gas combustion amount control means Pressure regulating down switch 6 for reducing the amount of gas combustion output from 3, pressure regulating up switch 5 and edge regulating means 7 for judging the edge to be released once pressure regulating down switch 6 is released, and pressure regulating up switch 5 When the gas combustion amount output from the gas combustion amount control means 3 increased or decreased by the pressure regulation down switch 6 and the edge determination means 7 is greater than or equal to a certain amount, the gas combustion amount is limited. The gas adjustment amount limiting means 8, the adjustment mode switch 9 for switching the gas combustion amount state to the gas combustion amount control means 3 when adjusting the gas combustion amount, and the gas in each combustion state when the combustion state is switched by the adjustment mode switch 9 When the gas combustion amount is increased / decreased by the non-volatile memory 10 for storing the secondary pressure value, the pressure adjustment up switch 5, the pressure adjustment down switch 6 and the edge determination means 7, the change of the gas secondary pressure value in one operation. A nonvolatile memory 11 for storing the amount as a fixed value, a nonvolatile memory writing means 14 for storing the gas secondary pressure value of the gas combustion amount control means 3 in the nonvolatile memory 10 for storing the gas secondary pressure value, and adjustment When the mode switch 9 is switched, the nonvolatile memory writing unit 14 includes a switching determination unit 13 that makes a request to write the gas secondary pressure value of the gas combustion amount control unit 3. That.
[0011]
Hereinafter, the operation of this embodiment will be described. When the pressure adjustment up switch 5 is operated once ON / OFF, the rising edge of the pressure adjustment up switch 5 is determined by the edge determination means 7. Next, the gas secondary pressure value is increased by the gas combustion amount control means 3 and output to the gas proportional valve 1 through the gas proportional valve circuit 2.
[0012]
When the pressure adjustment down switch 6 is operated once / on, the rising edge of the pressure adjustment down switch 6 is determined by the edge determination means 7. Next, the gas secondary pressure value is decreased by the gas combustion amount control means 3 and output to the gas proportional valve 1 through the gas proportional valve circuit 2.
[0013]
Next, the pressure adjustment mode switch 9 will be described. Combustion modes include the number of burners and modes of TDR and MAX. In the case of three gas burners 4, 1/3 TDR (one minimum combustion), 1/3 MAX (one maximum combustion), 2/3 TDR (two minimum combustions), 2/3 MAX (two maximum combustions) There are six combustion modes: (combustion), 3/3 TDR (three minimum combustion), and 3/3 MAX (three maximum combustion).
[0014]
A predetermined gas combustion mode (for example, 1/3 TDR combustion) is set by the adjustment mode switch 9. To the gas secondary pressure to a set value, a plurality of times by pressure regulating up switch 5, the pressure regulating down switch 6, repeat the ON / OFF operation, to adjust the gas combustion amount.
[0015]
When the gas secondary pressure reaches the set value, when the adjustment mode switch 9 is switched to another mode (for example, 1/3 MAX combustion), the switching determination means 13 issues a write request to the nonvolatile memory writing means 14, and The adjusted gas secondary pressure value is set to the value before switching the adjustment mode ( 1/3 TDR), and is written in the secondary pressure adjustment amount storage area 10 of the nonvolatile memory (written in the 1/3 TDR area) and adjusted value Remember.
[0016]
In the above operation, when the pressure adjustment up switch 5 is turned ON / OFF once, the rising edge of the pressure adjustment up switch 5 is determined by the edge determination means 7, and then the gas secondary pressure is determined by the gas combustion amount control means 3. increasing the value, but if increased is allowed gas secondary pressure value is equal to or greater than the increasing direction a predetermined value, to limit the gas secondary pressure by the gas adjustment amount limitation means 8. The limited secondary pressure value is output to the gas proportional valve 1 via the gas proportional valve circuit 2.
[0017]
Similarly, when the gas secondary pressure value is decreased , the rising edge of the pressure regulation down switch 6 is confirmed by the edge confirmation means 7 when the pressure regulation down switch 6 is operated once on / off.
[0018]
Then reduces the gas secondary pressure value by gas combustion amount control means 3 limit, if reduced little by not gas secondary pressure value is equal to or less than the decreasing direction a predetermined value, the gas adjustment amount limitation means 8 to the gas secondary pressure Add The limited secondary pressure value is output to the gas proportional valve 1 via the gas proportional valve circuit 2.
Next, the nonvolatile memory will be described. The non-volatile memory stores a secondary pressure adjustment amount storage area 10 that stores the adjusted secondary pressure value, and a secondary that stores a change amount of the gas secondary pressure value that changes by a single operation of the pressure adjustment switch. A pressure change amount storage area 11 is provided, and when the pressure adjustment switch is operated, adjustment is performed using a change amount of a predetermined gas secondary pressure value stored in the secondary pressure change amount storage area 11. That is, when the pressure adjustment up switch 5 is operated once / on, the edge determination means 7 determines the rising edge of the pressure adjustment up switch 5. When the rising edge is determined , the gas secondary pressure value is increased by the change amount of the gas secondary pressure value by one operation stored in the secondary pressure change amount storage area 11 of the nonvolatile memory.
[0019]
Next, the gas secondary pressure value is increased by the gas combustion amount control means 3, and the gas secondary pressure value is restricted by the gas adjustment amount restriction means 8 when the increased gas secondary pressure value is equal to or greater than a constant value in the increasing direction. . The limited secondary pressure value is output to the gas proportional valve 1 via the gas proportional valve circuit 2.
[0020]
Similarly, when the gas secondary pressure value is decreased , the rising edge of the pressure regulation down switch 6 is confirmed by the edge confirmation means 7 when the pressure regulation down switch 6 is operated once on / off. When the rising edge is determined , the gas secondary pressure value is reduced by the amount of change in the gas secondary pressure value by a single operation stored in the secondary pressure change amount storage area 11 of the nonvolatile memory.
[0021]
Next, the gas secondary pressure value is reduced by the gas combustion amount control means 3, and the gas secondary pressure value is restricted by the gas adjustment amount restriction means 8 when the reduced gas secondary pressure value is not more than a constant value in the decreasing direction. . The limited secondary pressure value is output to the gas proportional valve 1 via the gas proportional valve circuit 2.
[0022]
Next, the above operation will be described in association with the operation of the pressure adjustment mode switch 9 . When the adjustment mode switch 9 is switched to 2/3 TDR and the pressure adjustment up switch 5 is operated once ON / OFF, the edge determination means 7 determines the rising edge of the pressure adjustment up switch 5.
[0023]
Changes in the gas secondary pressure value that is stored in the secondary pressure change amount storage area 11 of the non-volatile memory when the rising edge is determined, and changes by a single operation of the pressure adjustment switch when the combustion mode is TDR The amount is used to increase the gas secondary pressure value. Next, the gas secondary pressure value is increased by the gas combustion amount control means 3, and when the increased gas secondary pressure value is equal to or greater than a constant value in the increasing direction, the gas secondary pressure is restricted by the adjustment amount restriction means 8. The limited secondary pressure value is output to the gas proportional valve 1 via the gas proportional valve circuit 2.
[0024]
Similarly, when the gas secondary pressure value is decreased , the rising edge of the pressure regulation down switch 6 is confirmed by the edge confirmation means 7 when the pressure regulation down switch 6 is operated once on / off. Changes in the gas secondary pressure value that is stored in the secondary pressure change amount storage area 11 of the non-volatile memory when the rising edge is determined, and changes by a single operation of the pressure adjustment switch when the combustion mode is TDR The quantity is used to reduce the gas secondary pressure value.
[0025]
Next, the gas secondary pressure value is reduced by the gas combustion amount control means 3, and when the reduced gas secondary pressure value is not more than a constant value in the decreasing direction, the gas secondary pressure is restricted by the adjustment amount restriction means 8. The limited secondary pressure value is output to the gas proportional valve 1 via the gas proportional valve circuit 2. Perform the above operation to adjust the value of 2/3 TDR to the set value.
[0026]
Next, when the adjustment mode switch 9 is switched to 2/3 MAX and the pressure adjustment up switch 5 is operated once ON / OFF, the rising edge of the pressure adjustment up switch 5 is determined by the edge determination means 7. When the rising edge is determined, the change in the gas secondary pressure value that is stored in the secondary pressure change amount storage area 11 of the non-volatile memory and changes by one operation of the pressure adjustment switch when the combustion mode is MAX. The amount is used to increase the gas secondary pressure value.
[0027]
Next, the gas secondary pressure value is increased by the gas combustion amount control means 3, and when the increased gas secondary pressure value is equal to or greater than a constant value in the increasing direction, the gas secondary pressure is restricted by the adjustment amount restriction means 8. The limited secondary pressure value is output to the gas proportional valve 1 via the gas proportional valve circuit 2.
[0028]
Similarly, when the gas secondary pressure value is decreased , the rising edge of the pressure regulation down switch 6 is confirmed by the edge confirmation means 7 when the pressure regulation down switch 6 is operated once on / off. When the rising edge is determined, the change in the gas secondary pressure value that is stored in the secondary pressure change amount storage area 11 of the non-volatile memory and changes by one operation of the pressure adjustment switch when the combustion mode is MAX. The quantity is used to reduce the gas secondary pressure value.
[0029]
Next, the gas secondary pressure value is reduced by the gas combustion amount control means 3, and when the reduced gas secondary pressure value is not more than a constant value in the decreasing direction, the gas secondary pressure is restricted by the adjustment amount restriction means 8. The limited secondary pressure value is output to the gas proportional valve 1 via the gas proportional valve circuit 2. Perform the above operation to adjust the value of 2/3 MAX to the set value. As described above, the gas secondary that changes by one operation of the pressure adjustment switch stored in the secondary pressure change amount storage area 11 of the nonvolatile memory according to the combustion mode switched by the pressure adjustment mode switch 9. Since adjustment is performed using the amount of change in pressure value, weighting for one operation of the pressure adjustment switch (TDR is fine and MAX is coarse) is performed according to the combustion mode (for example, TDR, MAX). By storing in the secondary pressure change amount storage area 11 of the non-volatile memory, the ratio of one operation of the pressure adjustment switch can be appropriately set according to the combustion mode (TDR, MAX).
[0030]
【The invention's effect】
As apparent from the above description, the present onset Ming controller so as to determine that the operation by detecting that the pressure up switch pressure regulating down switch tone is released by pressing once is performed are therefore, the pressure regulating switch short it is not necessary to detect the, there is an effect that it is possible to perform safely secondary pressure adjustment of the gas proportional valve. Moreover, the operability of the gas combustion amount adjustment by the adjustment switch can be improved by weighting one operation of the pressure adjustment switch according to the combustion mode.
[Brief description of the drawings]
FIG. 1 is a block diagram of a control device according to an embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 Gas proportional valve 2 Gas proportional valve circuit 3 Gas combustion amount control means 4 Gas burner 5 Pressure regulation up switch 6 Pressure regulation down switch 7 Edge confirmation means 8 Gas adjustment amount control means 9 Adjustment mode switch 10 Non-volatile memory (secondary pressure adjustment) Quantity storage area)
11 Nonvolatile memory (secondary pressure change storage area)
12 Water heater 13 Adjustment mode switching determination means 14 Non-volatile memory writing means

Claims (1)

給湯器のガス燃焼量を調整するガス比例弁と、前記ガス比例弁を駆動制御するガス比例弁回路と、前記ガス比例弁回路にガス燃焼量に対応した電気信号を出力するガス燃焼量制御手段と、前記ガス燃焼量を増加させるときに操作する調圧アップスイッチと、前記ガス燃焼量を減少させるときに操作する調圧ダウンスイッチと、前記調圧スイッチを一度押してから離したことを検知するエッジ確定手段と、特定の燃焼条件で燃焼を行う複数の燃焼モードから所定の燃焼モードに切り換える調整モードスイッチと、前記調整モードスイッチにより選択された燃焼モードにおける調整後のガス燃焼量を記憶する2次圧調整量記憶エリアを有するとともに、前記調圧スイッチの一回の操作で変化するガス燃焼量を記憶した2次圧変化量記憶エリアを有した不揮発性メモリーとを備え、前記調整モードスイッチにより選択された燃焼モードに応じて前記2次圧変化量記憶エリアに記憶された変化量を用いて前記調圧スイッチによりガス燃焼量の調整を行うようにした制御装置。A gas proportional valve for adjusting the gas combustion amount of the water heater, a gas proportional valve circuit for driving and controlling the gas proportional valve, and a gas combustion amount control means for outputting an electric signal corresponding to the gas combustion amount to the gas proportional valve circuit when detects a pressure regulating up switch to be operated when increasing the gas combustion amount, and the pressure regulating down switch operated to reduce the gas combustion amount, that is released from the press said pressure regulating switch once An edge determination unit, an adjustment mode switch for switching from a plurality of combustion modes in which combustion is performed under a specific combustion condition to a predetermined combustion mode, and an adjusted gas combustion amount in the combustion mode selected by the adjustment mode switch are stored 2 In addition to a secondary pressure adjustment amount storage area, there is a secondary pressure change amount storage area that stores a gas combustion amount that changes with a single operation of the pressure adjustment switch. And a non-volatile memory, the adjustment of the gas combustion amount by the pressure regulating switch using the change amount stored in the secondary pressure change amount storage area according to the adjustment mode combustion mode selected by the switch as to the control unit.
JP08125496A 1996-04-03 1996-04-03 Control device Expired - Lifetime JP3740734B2 (en)

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JP08125496A JP3740734B2 (en) 1996-04-03 1996-04-03 Control device

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Application Number Priority Date Filing Date Title
JP08125496A JP3740734B2 (en) 1996-04-03 1996-04-03 Control device

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JPH09273746A JPH09273746A (en) 1997-10-21
JP3740734B2 true JP3740734B2 (en) 2006-02-01

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CN115127239A (en) * 2022-07-22 2022-09-30 宁波方太厨具有限公司 Control method and system of proportional valve, electronic equipment and storage medium

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