JP2653162B2 - Hot water mixing control device - Google Patents
Hot water mixing control deviceInfo
- Publication number
- JP2653162B2 JP2653162B2 JP6242589A JP6242589A JP2653162B2 JP 2653162 B2 JP2653162 B2 JP 2653162B2 JP 6242589 A JP6242589 A JP 6242589A JP 6242589 A JP6242589 A JP 6242589A JP 2653162 B2 JP2653162 B2 JP 2653162B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water
- flow path
- signal
- side 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 - Fee Related
Links
Landscapes
- Temperature-Responsive Valves (AREA)
- Multiple-Way Valves (AREA)
- Magnetically Actuated Valves (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は湯と水の混合比率を調整し最適な混合湯温を
得る湯水混合制御装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot and cold water mixing control device for adjusting a mixing ratio of hot water and water to obtain an optimum mixed hot water temperature.
従来の技術 従来この種の湯水混合装置は第4図に示すようなもの
があった。2. Description of the Related Art Conventionally, this type of hot water mixing apparatus has been as shown in FIG.
第4図において、1は湯流路、2は水流路であり、各
流路に関連して自動調圧弁3が設けられている。自動調
圧弁3は、湯流路1の1次圧力PH1を減圧する湯側弁体
4、湯側弁座5と、水流路2の1次圧力PC1を減圧する
水側弁体6、水側弁座7と、湯側弁体4と水側弁体6を
連結する弁軸8と、湯と水の減圧後の1次圧PH1,PC1の
圧力差で動作するピストン9とで構成されており、湯ま
たは水の圧力が急変してもその圧力で自動調圧弁3が移
動し、湯と水の2次圧PH2とPC2とが常に等しく保たれる
ように作用する。湯と水の混合比はモータ11によって付
勢される湯調弁12を左右に移動させて可変し、混合温度
を変える。13は湯と水の混合部であり、混合後は流量調
節開閉弁14を介して出湯されるが、その温度は混合湯温
検出手段(例えばサーミスタ)15によって、またその流
量は流量検出手段16によって検知され、設定手段17の値
に一致させるべく制御手段18がモータ11と流量調節開閉
弁14を付勢する。In FIG. 4, reference numeral 1 denotes a hot water flow path, 2 denotes a water flow path, and an automatic pressure regulating valve 3 is provided in association with each flow path. The automatic pressure regulating valve 3 includes a hot water side valve body 4 and a hot water side valve seat 5 for reducing the primary pressure PH1 of the hot water flow path 1, a water side valve body 6 for reducing the primary pressure PC1 of the water flow path 2, and a water side. It comprises a valve seat 7, a valve shaft 8 connecting the hot water side valve body 4 and the water side valve body 6, and a piston 9 which operates with a pressure difference between the primary pressure PH <b> 1 and the PC <b> 1 after decompression of hot water and water. Thus, even if the pressure of hot water or water changes suddenly, the automatic pressure regulating valve 3 moves at that pressure, and acts so that the secondary pressure PH2 of the hot water and water and PC2 are always kept equal. The mixing ratio of hot water and water is varied by moving the hot water regulating valve 12 energized by the motor 11 left and right to change the mixing temperature. Reference numeral 13 denotes a mixing portion of hot water and water. After mixing, hot water is discharged through a flow rate control opening / closing valve 14, and its temperature is detected by a mixed hot water temperature detecting means (for example, a thermistor) 15, and its flow rate is detected by a flow rate detecting means 16. The control means 18 energizes the motor 11 and the flow control on-off valve 14 so as to match the value of the setting means 17.
発明が解決しようとする課題 しかしながら上記のような構成では、調圧弁3と湯調
弁12とが独立しているために、形が大きくなるとともに
圧損も大きくなり大流量を必要とする場合に課題とな
る。さらに温度変更はモータにより温調弁12を付勢して
いるため応答が遅い。Problems to be Solved by the Invention However, in the above configuration, since the pressure regulating valve 3 and the hot water regulating valve 12 are independent, the shape becomes large, the pressure loss becomes large, and a problem arises when a large flow rate is required. Becomes Furthermore, the response to the temperature change is slow because the temperature control valve 12 is energized by the motor.
本発明はかかる従来の課題を解消するもので、モータ
に比べ弁軸を直接可変バイアス手段で駆動し、駆動信号
には不規則な交流信号を重畳することにより温度調節を
早く行い安定した混合湯温を供給することを目的とす
る。The present invention solves such a conventional problem, in which a valve shaft is directly driven by a variable bias means as compared with a motor, and an irregular AC signal is superimposed on a drive signal to quickly adjust the temperature and stably mix the hot water. The purpose is to supply temperature.
課題を解決するための手段 上記課題を解決するために本発明の湯水混合装置は、
湯流路および水流路と、前記湯流路および水流路の流量
を調節する湯側弁体および水側弁体と、前記湯側弁体と
水側弁体の出口圧による力を互いに対向させる弁軸と、
前記弁軸に可変バイアス力を付与する可変バイアス手段
と、前記可変バイアス手段を制御する制御手段とからな
り、前記制御手段は前記可変バイアス手段の駆動信号に
不規則な交流信号を重畳する交流信号発生手段を備えた
構成としたものである。Means for Solving the Problems In order to solve the above problems, the hot and cold water mixing device of the present invention is
The hot water flow path and the water flow path, the hot water side valve element and the water side valve element for adjusting the flow rates of the hot water flow path and the water flow path, and the forces generated by the outlet pressures of the hot water side valve element and the water side valve element are opposed to each other. A valve shaft,
A variable bias means for applying a variable bias force to the valve shaft; and a control means for controlling the variable bias means. The control means includes an AC signal for superposing an irregular AC signal on a drive signal of the variable bias means. It is configured to include a generating means.
作用 以上の構成により、可変バイアス手段の駆動信号に交
流信号を重畳し温度調節を早く行う。Operation With the above configuration, the AC signal is superimposed on the drive signal of the variable bias unit, and the temperature is quickly adjusted.
実施例 以下、本発明の一実施例を図面を用いて説明する。な
お、第1図は湯水混合装置の断面図で第4図と同一部品
については同一番号を付している。Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of the hot and cold water mixing apparatus, and the same parts as those in FIG. 4 are denoted by the same reference numerals.
19は付勢手段で、20は前記付勢手段19の力と対向して
可変バイアス力を付与する可変バイアス手段である。可
変バイアス手段20は、磁性体からなるプランジャ21と、
前記プランジャ21の周りに防水および絶縁されたコイル
22を有し、前記コイル22は制御手段18に接続されてい
る。流量調節開閉弁14は流量調節開閉弁駆動手段23によ
り駆動される。Reference numeral 19 denotes an urging unit, and 20 denotes a variable bias unit that applies a variable bias force in opposition to the force of the urging unit 19. The variable bias means 20 includes a plunger 21 made of a magnetic material,
Waterproof and insulated coil around the plunger 21
22. The coil 22 is connected to the control means 18. The flow control on-off valve 14 is driven by a flow control on-off valve driving unit 23.
第2図は制御手段18の例である。24は主制御手段で、
25は付勢量設定手段で、26は交流信号発生手段である。FIG. 2 shows an example of the control means 18. 24 is the main control means,
25 is an urging amount setting means, and 26 is an AC signal generating means.
第3図は交流信号発生手段の出力例である。 FIG. 3 shows an output example of the AC signal generating means.
次に本発明の構成の動作を説明する。 Next, the operation of the configuration of the present invention will be described.
制御手段18からコイル22に電流を流すと、磁性体から
なるプランジャ21はフレミングの法則により弁軸8にバ
イアス力を付与する。このバイアス力と付勢手段19の付
勢力がつりあったところで自動調圧弁はバランスする。When a current flows from the control means 18 to the coil 22, the plunger 21 made of a magnetic material applies a bias force to the valve shaft 8 according to Fleming's law. When the biasing force and the urging force of the urging means 19 are balanced, the automatic pressure regulating valve balances.
したがって、コイル22に流す電流を変化することによ
り自動調圧弁3のバランス点を移動することができる。Therefore, the balance point of the automatic pressure regulating valve 3 can be moved by changing the current flowing through the coil 22.
例えば、電流の小さい場合は付勢手段19の力の方が強
いため湯側弁体4より水側弁体6の方が大きく開き、出
湯温度が低くなる。For example, when the current is small, the force of the urging means 19 is stronger, so that the water-side valve body 6 opens more than the hot-water-side valve body 4, and the tapping temperature decreases.
電流を大きくすると付勢手段19の力に対向してプラン
ジャ21を押し出すことにより湯側弁体4が開きだし結果
的に出湯温度が高くなる。When the current is increased, the plunger 21 is pushed out against the force of the urging means 19, so that the hot-water-side valve body 4 opens, and as a result, the hot-water tapping temperature increases.
このようにして、制御手段18は混合湯温検出手段15の
信号と設定手段17の信号を入力することにより出湯温度
が設定温度になるようにコイル22を流す電流を調節す
る。In this manner, the control means 18 adjusts the current flowing through the coil 22 so that the tapping water temperature becomes the set temperature by inputting the signal of the mixed hot water temperature detecting means 15 and the signal of the setting means 17.
この際、コイル22に流す電流が直流電流では、磁気回
路からなる可変バイアス手段20のヒステリシス特性や駆
動開始時の摺動抵抗により弁軸8を早く動かし混合湯温
の温度調節を行なうことが難しい。At this time, if the current flowing through the coil 22 is a direct current, it is difficult to quickly move the valve shaft 8 and adjust the temperature of the mixed hot water due to the hysteresis characteristic of the variable bias means 20 composed of a magnetic circuit and the sliding resistance at the start of driving. .
また、コイル22に流す電流に単に規則的な交流信号
(第3図(a))を重畳しても磁気回路からなる可変バ
イアス手段20のヒステリシス特性や駆動開始時の摺動抵
抗は少なくなるが規則的な交流信号による弁軸8の共振
振動を発生することがある。Even if a regular AC signal (FIG. 3 (a)) is simply superimposed on the current flowing through the coil 22, the hysteresis characteristic of the variable bias means 20 comprising a magnetic circuit and the sliding resistance at the start of driving are reduced. A resonance vibration of the valve shaft 8 due to a regular AC signal may occur.
したがって上記の現象を防ぐため、交流信号発生手段
26は主制御手段24からの制御信号により不規則な交流信
号(例えば同期を変える。(第3図(b))、振幅を変
える(第3図(c))など)を発生する。この信号を付
勢量設定手段25に送りコイルに流す電流には不規則な交
流信号を重畳する。Therefore, in order to prevent the above phenomenon,
26 generates an irregular AC signal (for example, changing the synchronization (FIG. 3 (b)) and changing the amplitude (FIG. 3 (c)) by the control signal from the main control means 24. This signal is sent to the bias amount setting means 25, and an irregular AC signal is superimposed on the current flowing through the coil.
これにより、磁気回路からなる可変バイアス手段20の
ヒステリシス特性や駆動開始時の摺動抵抗を少なくし、
弁軸8の共振振動を発生しないようにすることができ
る。As a result, the hysteresis characteristic of the variable bias means 20 composed of a magnetic circuit and the sliding resistance at the start of driving are reduced,
The resonance vibration of the valve shaft 8 can be prevented from being generated.
さらに出湯を停止する場合の動作を説明する。出湯停
止検出手段として流量検出手段16を用いる場合を説明す
る。設定手段17により出湯を停止する場合または断水等
により出湯が停止する場合には主制御手段26は流量検出
手段16の信号により流量が減少してくることを検知す
る。流量が一定量以下になると混合湯温を設定値に制御
することが難しくなるため主制御手段26は付勢量設定手
段27を介してコイル22への駆動力(電流)の供給を停止
する信号をだす。これにより出湯停止後コイル22への駆
動力の供給を停止するため湯水混合制御装置の省電力化
を図れる。またコイル22への駆動力を停止すると付勢手
段11により弁軸8が押され湯側弁体4がほぼ全閉となり
誤動作等により流量調節開閉弁14が開いても出湯温度は
設定温度より高温になることがなく安全である。Further, the operation when stopping tapping will be described. The case where the flow rate detecting means 16 is used as the hot water supply stop detecting means will be described. When tapping is stopped by the setting unit 17 or when tapping is stopped due to interruption of water supply or the like, the main control unit 26 detects a decrease in the flow rate by a signal from the flow rate detection unit 16. When the flow rate becomes lower than a certain amount, it becomes difficult to control the temperature of the mixed hot water to the set value. Therefore, the main control means 26 stops the supply of the driving force (current) to the coil 22 via the urging amount setting means 27. Out. Thereby, the supply of the driving force to the coil 22 is stopped after the hot water is stopped, so that the power of the hot and cold water mixing control device can be saved. When the driving force to the coil 22 is stopped, the valve shaft 8 is pushed by the urging means 11, and the hot-water-side valve body 4 is almost fully closed, so that the tapping temperature is higher than the set temperature even if the flow control on-off valve 14 is opened due to malfunction or the like. It is safe without becoming.
通常の使用状態においては水圧変動時には従来と同様
に自動調圧弁3が動作し、湯側弁体4、水側弁体6とピ
ストン9との受圧面積を等しくしておけばその2次圧PH
2とPC2とは付勢手段19と可変バイアス手段20によるバラ
ンス点での状態を保つ。In a normal use state, when the water pressure fluctuates, the automatic pressure regulating valve 3 operates as in the conventional case, and if the pressure receiving areas of the hot water side valve element 4, the water side valve element 6, and the piston 9 are made equal, the secondary pressure PH
2 and PC2 maintain the state at the balance point by the urging means 19 and the variable bias means 20.
さらに、調圧弁と湯調弁とを1つにできるため形を小
さく構成することができる。Further, since the pressure regulating valve and the hot water regulating valve can be integrated into one, the size can be reduced.
発明の効果 以上のように本発明の湯水混合制御装置は、湯流路お
よび水流路と、前記湯流路および水流路の流量を調節す
る湯側弁体および水側弁体と、前記湯側弁体と水側弁体
の出口圧による力を互いに対向させる弁軸と、前記弁軸
に可変バイアス力を付与する可変バイアス手段と、前記
可変バイアス手段を制御する制御手段とからなり、前記
制御手段は前記可変バイアス手段の駆動信号に不規則な
交流信号を重畳する交流信号発生手段とを備えたので、
以下の効果を有する。Effect of the Invention As described above, the hot and cold water mixing control device of the present invention includes a hot water flow path and a water flow path, a hot water side valve element and a water side valve element that adjust the flow rates of the hot water flow path and the water flow path, A valve shaft that opposes the force of the outlet pressure of the valve body and the water-side valve body to each other; a variable bias unit that applies a variable bias force to the valve shaft; and a control unit that controls the variable bias unit. Since the means includes AC signal generating means for superimposing an irregular AC signal on the drive signal of the variable bias means,
It has the following effects.
(1) 可変バイアス手段を駆動する電流に交流信号を
重畳することにより、磁気回路からなる可変バイアス手
段のヒステリシス特性や駆動開始時の摺動抵抗を少なく
できる。(1) By superimposing an AC signal on the current for driving the variable bias means, it is possible to reduce the hysteresis characteristic and the sliding resistance at the start of driving of the variable bias means comprising a magnetic circuit.
(2) 重畳する交流信号を不規則にすることにより、
弁軸の共振振動を発生しないようにすることができる。(2) By making the superimposed AC signal irregular,
The resonance vibration of the valve shaft can be prevented from being generated.
第1図は本発明の一実施例の湯水混合制御装置の断面
図、第2は同湯水混合制御装置の制御ブロック図、第3
図は同湯水混合制御装置の交流信号発生手段の出力特性
図、第4図は従来の湯水混合制御装置の断面図である。 1……湯流路、2……水流路、4……湯側弁体、6……
水側弁体、8……弁軸、18……制御手段、19……付勢手
段、20……可変バイアス手段。FIG. 1 is a sectional view of a hot water mixing control device according to one embodiment of the present invention, FIG. 2 is a control block diagram of the hot water mixing control device, and FIG.
The figure is an output characteristic diagram of the AC signal generating means of the hot water mixing control device, and FIG. 4 is a sectional view of the conventional hot water mixing control device. 1 hot water flow path, 2 water flow path, 4 hot water side valve element, 6
Water-side valve element, 8: valve shaft, 18: control means, 19: urging means, 20: variable bias means.
フロントページの続き (72)発明者 米久保 寛明 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 城戸内 康夫 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 平1−145483(JP,A) 特開 昭62−49084(JP,A) 特開 平1−307578(JP,A) 特開 平1−312279(JP,A)Continuing on the front page (72) Inventor Hiroaki Yonekubo 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-1-145483 (JP, A) JP-A-62-49084 (JP, A) JP-A-1-307578 (JP, A) JP-A-1-312279 (JP, A)
Claims (1)
前記水流路の流量を調節する湯側弁体および水側弁体
と、前記湯側弁体と水側弁体の出口圧による力を互いに
対向させる弁軸と、前記弁軸に可変バイアス力を付与す
る可変バイアス手段と、前記可変バイアス手段を制御す
る制御手段とからなり、前記制御手段は前記可変バイア
ス手段の駆動信号に不規則な交流信号を重畳する交流信
号発生手段を有する湯水混合制御装置。1. A hot water flow path and a water flow path, a hot water side valve element and a water side valve element for adjusting a flow rate of the hot water flow path and the water flow path, and an outlet pressure of the hot water side valve element and the water side valve element. A variable shaft means for applying a variable bias force to the valve shaft, and a control means for controlling the variable bias means, wherein the control means receives a drive signal of the variable bias means. A hot water mixing control device having an AC signal generating means for superimposing an irregular AC signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6242589A JP2653162B2 (en) | 1989-03-15 | 1989-03-15 | Hot water mixing control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6242589A JP2653162B2 (en) | 1989-03-15 | 1989-03-15 | Hot water mixing control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02240480A JPH02240480A (en) | 1990-09-25 |
JP2653162B2 true JP2653162B2 (en) | 1997-09-10 |
Family
ID=13199792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6242589A Expired - Fee Related JP2653162B2 (en) | 1989-03-15 | 1989-03-15 | Hot water mixing control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2653162B2 (en) |
-
1989
- 1989-03-15 JP JP6242589A patent/JP2653162B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH02240480A (en) | 1990-09-25 |
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LAPS | Cancellation because of no payment of annual fees |