JPH07332762A - Controller for hot water supplying apparatus - Google Patents

Controller for hot water supplying apparatus

Info

Publication number
JPH07332762A
JPH07332762A JP6154183A JP15418394A JPH07332762A JP H07332762 A JPH07332762 A JP H07332762A JP 6154183 A JP6154183 A JP 6154183A JP 15418394 A JP15418394 A JP 15418394A JP H07332762 A JPH07332762 A JP H07332762A
Authority
JP
Japan
Prior art keywords
hot water
water
temperature
filling
water supply
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
JP6154183A
Other languages
Japanese (ja)
Other versions
JP3287701B2 (en
Inventor
Mikio Ochi
幹夫 越智
Hiroki Maruyama
浩樹 丸山
Noboru Kawachi
登 河内
Yukio Kobata
幸雄 木幡
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.)
NIPPON UPRO KK
Toto Ltd
Original Assignee
NIPPON UPRO KK
Toto Ltd
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 NIPPON UPRO KK, Toto Ltd filed Critical NIPPON UPRO KK
Priority to JP15418394A priority Critical patent/JP3287701B2/en
Publication of JPH07332762A publication Critical patent/JPH07332762A/en
Application granted granted Critical
Publication of JP3287701B2 publication Critical patent/JP3287701B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To obtain hot water supply at a set hot water temperature from a hot water supply side even when the supply hot water is simultaneously used during filling when a bath set temperature and supply hot water temperature are set to different values in a hot water supplying apparatus for filling hot water and generally supplying hot water from the same hot water supplying system and to realize it at a relatively low cost. CONSTITUTION:A controller 41 controls combustion at a supply hot water set temperature TS when a bathtub is filled with hot water, and first opens an adding water solenoid valve 23 to apply adding water to the bathtub and then opens a warm water solenoid valve 17 to fill hot water at the temperature TS when a bath set temperature TFS is lower than the temperature TS so that the bath real temperature TF becomes the temperature TFS at the time of completing the filling of the hot water. On the other hand, when the temperature TFS is higher than the temperature TS, only filling of the hot water is conducted, and then reheating with bath temperature keeping function is conducted to raise the temperature TF to the temperature TFS.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、給湯機の制御装置に関
し、特に、同一の給湯系統から一般給湯と風呂湯張りと
を行う給湯機における一般給湯温度と風呂温度とを制御
する技術の改良に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply controller, and more particularly, to an improvement in the technique for controlling the general hot water supply temperature and the bath temperature in a hot water supply device that performs general hot water supply and bath filling with the same hot water supply system. Regarding

【0002】[0002]

【従来の技術】一般給湯と湯張りの双方が行える給湯機
では、一般給湯も湯張りも共に同一の給湯系統(熱交換
器)から行う構成が一般的である。この構成の給湯機で
は、湯張りを行っている最中に給湯を同時使用すると、
湯張りの設定湯温(風呂設定温度)で給湯も行われる。
しかし、風呂設定温度と給湯設定温度とは異なるのが通
常であるから、湯張り中は所望温度の給湯が得られない
という問題が生じる。
2. Description of the Related Art In a water heater capable of both general hot water supply and hot water filling, the general hot water supply and hot water filling are both performed from the same hot water supply system (heat exchanger). With a water heater with this configuration, if hot water is used simultaneously while filling water,
Hot water is also supplied at the set hot water temperature (bath set temperature).
However, since the bath set temperature and the hot water supply set temperature are usually different, there arises a problem that hot water supply at a desired temperature cannot be obtained during filling.

【0003】そこで、湯張り経路で湯と水を混合して湯
張りすることにより、給湯側は高温湯が同時出湯させ得
る構成が提案されたが、湯張り専用の混合弁を必要とす
るためコスト高となる欠点がある。また実公6−152
5にあるように、湯張り中の一般給湯使用を検知し湯張
りを中断するとともに給湯設定温度で一般給湯を行う方
法も考案されたが、一般給湯使用を検知し、目標温度を
変更し、実給湯温度が変化するまでの間、風呂設定温度
で給湯される欠点がある他、たとえ少量の一般給湯使用
でも湯張りを中断するため、給湯系統の持つ能力を充分
活かせられないという無駄もあった。
Therefore, a structure has been proposed in which hot water can be simultaneously discharged from the hot water supply side by mixing hot water and water in the hot water filling path, but since a mixing valve dedicated to the hot water filling is required. There is a drawback that the cost is high. See also 6-152
As shown in 5, there was also devised a method of detecting the use of general hot water supply during hot water filling, interrupting the hot water supply, and performing general hot water supply at the hot water supply set temperature, but detecting the use of general hot water supply and changing the target temperature, Until the actual hot water temperature changes, hot water is supplied at the set bath temperature, and even if a small amount of general hot water is used, the filling of water will be interrupted, so there is a waste that the capacity of the hot water system cannot be fully utilized. It was

【0004】[0004]

【発明が解決しようとする課題】このように従来の給湯
機では、湯張りの最中に一般給湯を同時使用した場合、
所望の給湯温度が得られないという問題や、一般給湯と
湯張りが同時にできないという問題があった。
As described above, in the conventional water heater, when general hot water is used at the same time while filling water,
There are problems that a desired hot water supply temperature cannot be obtained and that general hot water supply and hot water filling cannot be performed at the same time.

【0005】従って、本発明の目的は、同一の給湯系統
から湯張りと一般給湯とを行なう給湯機において、風呂
設定温度と給湯設定温度とが異なった値に設定されてい
る場合に、湯張り中に給湯が同時使用されたときでも、
給湯側からは給湯設定温度での出湯が得られるように
し、且つ、これを比較的低コストで実現することにあ
る。
Therefore, an object of the present invention is to provide a hot water supply system for filling water and supplying hot water from the same hot water supply system, when the bath set temperature and the hot water supply set temperature are set to different values. Even when hot water is used at the same time,
The hot water supply side can obtain hot water at the hot water supply set temperature, and this can be realized at a relatively low cost.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
に本発明は、同一の給湯系統から湯張りと一般給湯とを
行う機能と、浴槽への差し水を行う機能とをもつ給湯機
の制御装置において、風呂設定温度と給湯設定温度とを
比較する設定温度比較手段と、浴槽へ湯水を落し込む
際、設定温度比較手段からの比較結果に応じて、湯張り
機能と差し水機能とを制御する制御手段と、を備えるこ
とを特徴とする。
To achieve the above object, the present invention relates to a water heater having a function of filling water from the same hot water supply system and general hot water, and a function of supplying water to a bathtub. In the control device, a set temperature comparison means for comparing the bath set temperature and the hot water supply set temperature, and when pouring hot and cold water into the bathtub, depending on the comparison result from the set temperature comparison means, the water filling function and the water filling function are provided. And a control means for controlling.

【0007】[0007]

【作用】本発明によれば、浴槽に湯水を落とし込む際、
風呂設定温度と給湯設定温度との比較結果に応じて、湯
張りと差し水とが制御される。これにより、湯張りの温
度は給湯設定温度に基づいて制御しつつ、湯張りと差し
水とを組合せることにより、浴槽温度は風呂設定温度に
制御することが可能となる。その結果、一般給湯の使用
時には常に給湯設定温度の湯が得られることになる。
According to the present invention, when pouring hot water into the bathtub,
Water filling and water filling are controlled according to the result of comparison between the bath set temperature and the hot water supply set temperature. This makes it possible to control the bath temperature to the bath set temperature by controlling the hot water supply temperature based on the hot water supply set temperature and combining the hot water filling and the supplied water. As a result, when the general hot water supply is used, the hot water having the preset hot water supply temperature is always obtained.

【0008】好適な実施例では、給湯設定温度の方が風
呂設定温度より高いときは、差し水と湯張りとを併用す
ることにより、湯張り完了時に浴槽温度を風呂設定値に
一致させると共に、湯張り中に給湯使用しても、直ちに
高温の出湯が得られるようにしている。また、風呂設定
温度の方が給湯設定温度より高いときは、湯張りのみを
行ない、その後に追焚を行なうことにより、風呂温度を
設定温度まで上昇させるようにしている。尚、追焚は、
給湯設定温度の方が風呂設定温度より高いときにも、必
要に応じて行えるようにしており、これにより、差し水
と湯張りの併用だけでは対応できない各種の変動などに
も対応できるようにしている。
In the preferred embodiment, when the hot water supply set temperature is higher than the bath set temperature, the bath water temperature is made to match the bath set value at the completion of the hot water filling by using water supply and hot water filling together. Even if hot water is used during filling, hot water can be obtained immediately. When the bath set temperature is higher than the hot water supply set temperature, the bath temperature is raised to the set temperature by performing only hot water filling and then reheating. In addition,
Even when the set temperature of hot water is higher than the set temperature of the bath, it can be done as needed, so that it is possible to deal with various fluctuations that can not be dealt with only by combining water supply and filling. There is.

【0009】更に、この実施例では、差し水と湯張りを
併用する際、差し水を先に行ない、湯張りを後から行な
うようにしている。これにより、湯張り途中で入浴した
としても、風呂温度が高温に成っていることがなく、安
全が確保される。
Further, in this embodiment, when the water filling and the water filling are used together, the water feeding is performed first and the water filling is performed later. As a result, even if the user takes a bath while filling the bath, the bath temperature is not high and safety is ensured.

【0010】また、別の実施例では、差し水と湯張りを
併用する場合、差し水と湯張り少量づつ交互に複数回繰
り返し行うようにしている。これにより、湯張り最中の
各種変動に対する調整が行ない易くなるため、風呂温度
を良好に風呂設定温度の一致させやすくなり、また、湯
張り途中で入浴しても、風呂温度が風呂設定温度にかな
り近くなっているため快適である、などのメリットが得
られる。
Further, in another embodiment, when the water filling and the water filling are used in combination, the water feeding and the water filling are each repeated a small number of times a plurality of times. This makes it easier to adjust for various fluctuations during filling, making it easier to match the bath temperature with the bath setting temperature, and even if you take a bath while filling the bath, the bath temperature does not change to the bath setting temperature. It is very close, so you can enjoy the benefits of being comfortable.

【0011】[0011]

【実施例】以下、本発明の実施例を図面により詳細に説
明する。
Embodiments of the present invention will now be described in detail with reference to the drawings.

【0012】図1は、本発明を適用した1缶2水路式の
給湯機の一実施例の配管構成を示す。
FIG. 1 shows a piping configuration of an embodiment of a one-can, two-channel water heater to which the present invention is applied.

【0013】図1に示すように、給湯加熱のための給湯
熱交換器1と浴湯循環加熱のための風呂熱交換器3とが
同一の燃焼室に置かれる。一般給湯のための系統は、給
水管5から給湯熱交換器管(以下、給湯熱交管という)
7を経由して給湯管9に至る配管により構成される。給
水管5の、後述する差し水管21との分岐点より下流側
には、給湯水量Qを測るための給湯水量センサ6と、上
流には給水温度TCを測る給水サーミスタ8とが設けら
れている。給水管5の出口と給湯管9の入口との間に
は、給湯熱交換器1をバイパスする給水バイパス管11
が更に設けられる。この給水バイパス管11の出口と給
湯熱交管7の出口とは、湯水混合比制御用のミキシング
サーボ弁13を介して、給湯管9の入口に結合される。
給湯管9の、ミキシングサーボ弁13より下流側には、
給湯水量調節用の給湯水量比例弁15及び給湯温度TM
を測定するための給湯サーミスタ10が設けられてい
る。
As shown in FIG. 1, a hot water supply heat exchanger 1 for heating hot water and a bath heat exchanger 3 for circulating hot water are placed in the same combustion chamber. The system for general hot water supply is from the water supply pipe 5 to the hot water supply heat exchanger pipe (hereinafter referred to as the hot water supply heat exchanger pipe).
It is configured by a pipe that reaches the hot water supply pipe 9 via 7. A hot water supply amount sensor 6 for measuring a hot water supply amount Q and a water supply thermistor 8 for measuring a water supply temperature TC are provided on the downstream side of a branch point of the water supply pipe 5 with a water supply pipe 21 described later. . Between the outlet of the water supply pipe 5 and the inlet of the hot water supply pipe 9, a water supply bypass pipe 11 that bypasses the hot water supply heat exchanger 1.
Is further provided. The outlet of the hot water supply bypass pipe 11 and the outlet of the hot water supply heat exchange pipe 7 are connected to the inlet of the hot water supply pipe 9 via a mixing servo valve 13 for controlling the hot water mixing ratio.
On the downstream side of the hot water supply pipe 9 from the mixing servo valve 13,
Hot water supply proportional valve 15 for adjusting hot water supply and hot water temperature TM
A hot water supply thermistor 10 for measuring the temperature is provided.

【0014】浴湯循環加熱のための系統は、浴槽に接続
される風呂戻り管31から風呂熱交換器管(以下、風呂
熱交管という)29を経由して再び浴槽に接続される風
呂往き管27に至る配管により構成される。
The system for circulating hot water circulation is a bath return pipe 31 connected to the bathtub, and again connected to the bathtub via a bath heat exchanger pipe (hereinafter referred to as bath heat exchange pipe) 29. It is composed of pipes reaching 27.

【0015】風呂戻り管31の出口と風呂往き管27の
入口との間には、風呂熱交換器3をバイパスする風呂バ
イパス管33が設けられている。この風呂バイパス管3
3の入口と風呂熱交管29の入口とは、三方弁35を介
して風呂戻り管31の出口に選択的に連通されるように
なっている。風呂戻り管31には、浴湯循環流を生じさ
せる循環ポンプ39、風呂実温度TFを測る風呂サーミ
スタ40等が設けられている。
A bath bypass pipe 33 for bypassing the bath heat exchanger 3 is provided between the outlet of the bath return pipe 31 and the inlet of the bath outlet pipe 27. This bath bypass pipe 3
The inlet of No. 3 and the inlet of the bath heat exchange pipe 29 are selectively connected to the outlet of the bath return pipe 31 via the three-way valve 35. The bath return pipe 31 is provided with a circulation pump 39 that produces a circulating bath water, a bath thermistor 40 that measures the actual bath temperature TF, and the like.

【0016】上述した給湯系統と浴湯加熱系統との間に
は、浴槽への湯張りや足し湯を行うための湯張り管19
が設けられる。即ち、この湯張り管19は、給湯管9と
風呂戻り管31との間をつないでいる。この湯張り管1
9には、この管を開閉する温水電磁弁17、浴槽への給
湯水流量を測る風呂水量センサ20、湯張り又は差し水
の流量を調節する風呂水量比例弁25等が設けられてい
る。
Between the hot water supply system and the bath hot water heating system described above, a filling pipe 19 for filling and adding hot water to the bathtub.
Is provided. That is, the hot water filling pipe 19 connects the hot water supply pipe 9 and the bath return pipe 31. This water filling pipe 1
9 is provided with a hot water solenoid valve 17 for opening and closing this pipe, a bath water amount sensor 20 for measuring the flow amount of hot water supplied to the bathtub, a bath water amount proportional valve 25 for adjusting the flow amount of hot water or the amount of water to be supplied.

【0017】更に、給水管5と湯張り管19の風呂水量
センサ20上流側部分との間に、差し水管21が設けら
れている。この差し水管21は、風呂温度を下げるため
の差し水を浴槽に供給するときに使用するもので、この
差し水管21には、これを開閉するための差し水電磁弁
23が設けられている。
Further, a water supply pipe 21 is provided between the water supply pipe 5 and the upstream portion of the bath water amount sensor 20 of the water filling pipe 19. This water supply pipe 21 is used when supplying the water supply for lowering the bath temperature to the bathtub, and this water supply pipe 21 is provided with a water supply solenoid valve 23 for opening and closing the water supply pipe 21.

【0018】なお、風呂水量センサ20は、湯張り時に
は湯張りの量Qμを、差し水時には差し水量QCを夫々
測定することになる。
The bath water amount sensor 20 measures the amount of water filling Qμ at the time of filling water and the amount of water feeding QC at the time of filling water.

【0019】制御装置41は、上述した2つの湯水配管
系統の動作、及び図示しない燃焼系統の動作を制御する
もので、各系統内に配置された各種のサーミスタやセン
サ及び図示しないリモートコントローラ等からの信号を
入力して、各系統内の各種の弁の開度やポンプの回転数
をコントロールする。制御装置41への入力信号のう
ち、本発明に関連するものは、図示したように、給湯温
度TM、給水温度TC、風呂設定温度TFS、風呂実温度T
F、目標総落し込み量QTS、湯張り量Qμ、差し水量Q
C、給湯水量Q等である。
The control device 41 controls the operation of the above-described two hot and cold water piping systems and the operation of a combustion system (not shown), and includes various thermistors and sensors arranged in each system and a remote controller (not shown). Signal is input to control the opening of various valves in each system and the rotation speed of the pump. Among the input signals to the control device 41, those relevant to the present invention are, as shown in the figure, hot water supply temperature TM, water supply temperature TC, bath set temperature TFS, and bath actual temperature T.
F, target total amount of sink QTS, amount of water filling Qμ, amount of supplied water Q
C, hot water supply amount Q, etc.

【0020】尚、制御装置41への入力信号のうち湯張
り量Qμ及び差し水量QCは、風呂水量センサ20が微
小流量を検出し、これを制御装置41が積算することに
より求める。
The amount of filling water Qμ and the amount of supplied water QC of the input signals to the control device 41 are obtained by the bath water amount sensor 20 detecting a minute flow rate, and the control device 41 integrating these values.

【0021】図2は、制御装置41の機能構成を示した
ものである。制御装置41は、給湯使用判断部51、加
熱量演算部53、比例弁開度駆動部55、積算湯量検出
部57、積算水量検出部59、弁駆動要否決定部61、
循環ポンプ駆動部62、温度比較部63、目標給湯水量
算出部68、湯張り弁駆動部73、差し水弁駆動部7
5、追焚加熱判断部69、及び三方弁駆動部71を備え
る。ここで、目標給湯水量算出部68は更に、目標湯張
り量算出部65と目標差し水量算出部67に分けられ
る。
FIG. 2 shows a functional configuration of the control device 41. The control device 41 includes a hot water supply use determination unit 51, a heating amount calculation unit 53, a proportional valve opening drive unit 55, an integrated hot water amount detection unit 57, an integrated water amount detection unit 59, a valve drive necessity determination unit 61,
Circulation pump drive unit 62, temperature comparison unit 63, target hot water supply amount calculation unit 68, water filling valve drive unit 73, water supply valve drive unit 7
5, a reheating heating determination unit 69, and a three-way valve drive unit 71. Here, the target hot water supply amount calculation unit 68 is further divided into a target hot water amount calculation unit 65 and a target water supply amount calculation unit 67.

【0022】給湯使用判断部51は、給湯水量センサ6
からの測定された単位時間当たりの給湯水量Q(給湯水
流量)が、所定の最低流量値を超えているときに、給湯
使用中であると判断して燃焼配管系統(図示しない)を
制御すべき旨を、加熱量演算部53に通知する。
The hot water supply use determination unit 51 is provided with a hot water supply amount sensor 6
When the measured hot water supply amount per unit time Q (hot water supply water flow rate) exceeds the specified minimum flow rate value, it is determined that hot water is being used and the combustion piping system (not shown) is controlled. The heating amount calculation unit 53 is notified of the fact.

【0023】加熱量演算部53は、給湯使用判断部51
から上記通知があると、リモートコントローラ(図示し
ない)からの設定温度等に基づき決定された給湯設定温
度TSと、給水サーミスタ8により測定された給水温度
TCと、給湯サーミスタ10からの給湯温度TMと、給湯
水量センサ6からの給湯水量Qとから、F=Q×(TS
−TC)の式により基本加熱量を求め、更に給湯温度偏
差(TM−TS)に基づく比例積分演算により基本加熱量
を補正して目標加熱量Fを求め、これを比例弁開度駆動
部55に与える。
The heating amount calculation unit 53 is a hot water supply use determination unit 51.
When the above notification is given from the hot water supply set temperature TS determined based on a set temperature or the like from a remote controller (not shown), the water supply temperature TC measured by the water supply thermistor 8, and the hot water supply temperature TM from the hot water supply thermistor 10. , And from the hot water supply amount Q from the hot water supply amount sensor 6, F = Q × (TS
-TC), the basic heating amount is obtained, and the target heating amount F is obtained by correcting the basic heating amount by proportional integral calculation based on the hot water supply temperature deviation (TM-TS). Give to.

【0024】比例弁開度駆動部55は、目標加熱量Fに
基づいて、バーナ(図示せず)へのガス供給量を調節す
るガス比例弁77の開度を調整する。それにより、給湯
使用時には給湯温度TMが給湯設定温度TSに一致するよ
うに給湯温度制御が行なわれる。
The proportional valve opening driver 55 adjusts the opening of the gas proportional valve 77 for adjusting the gas supply amount to the burner (not shown) based on the target heating amount F. As a result, when using the hot water supply, the hot water supply temperature control is performed so that the hot water supply temperature TM matches the hot water supply set temperature TS.

【0025】追焚加熱判断部69は、湯張り終了後に三
方弁駆動部71に指示して、三方弁35の熱交換器側を
開かせ、循環ポンプ駆動部62を介して循環ポンプ39
を駆動して風呂湯循環を行うと共に、風呂実温度TFが
風呂設定温度TFSに達していない場合にTFがTFSに達
するまで、加熱量演算部53に所定の加熱量で加熱する
よう指示を与える。
After the filling of water is completed, the additional heating determination unit 69 instructs the three-way valve drive unit 71 to open the heat exchanger side of the three-way valve 35, and the circulation pump drive unit 62 is used to open the circulation pump 39.
Is driven to circulate the bath water, and when the actual bath temperature TF does not reach the bath set temperature TFS, the heating amount calculation unit 53 is instructed to perform heating with a predetermined heating amount until TF reaches TFS. .

【0026】積算湯量検出部57は、弁駆動要否決定部
61が温水電磁弁17を開いてから閉じるまでの間、風
呂水量センサ20からの微小湯張り量ΔQμを積算して
湯張り量Qμを求め弁駆動要否決定部61に出力する。
The accumulated hot water amount detecting unit 57 integrates the minute hot water filling amount ΔQμ from the bath water amount sensor 20 and accumulates the hot water filling amount Qμ from the time when the valve drive necessity determining unit 61 opens the hot water solenoid valve 17 to the time when the hot water electromagnetic valve 17 is closed. Is output to the valve drive necessity determination unit 61.

【0027】積算水量検出部59は、弁駆動要否決定部
61が差し水電磁弁23を開いてから閉じるまでの間、
風呂水量センサ20からの微小差し水量ΔQCを積算し
て差し水量QCを求め弁駆動要否決定部61に出力す
る。
The accumulated water amount detecting unit 59 is provided between the time when the valve drive necessity determining unit 61 opens the water-feeding electromagnetic valve 23 and the time when the water-feeding electromagnetic valve 23 is closed.
The minute water supply amount ΔQC from the bath water amount sensor 20 is integrated to obtain the water supply amount QC and output to the valve drive necessity determination unit 61.

【0028】温度比較部63は、風呂設定温度TFSと給
湯設定温度TSを比較し、比較結果を加熱量演算部5
3、弁駆動要否決定部61、目標湯張り量算出部65及
び目標差し水量算出部67に出力する。温度比較部63
は、また、風呂設定温度TFSと風呂実温度Tfとを比較
し、その比較結果を弁駆動要否決定部61に出力する。
The temperature comparison unit 63 compares the bath set temperature TFS and the hot water supply set temperature TS, and the comparison result is used as the heating amount calculation unit 5
3, output to the valve drive necessity determination unit 61, the target filling amount calculation unit 65, and the target water supply amount calculation unit 67. Temperature comparison unit 63
Also compares the bath set temperature TFS with the bath actual temperature Tf and outputs the comparison result to the valve drive necessity determination unit 61.

【0029】目標湯張り量算出部65及び目標差し水量
算出部67は、それぞれ、温度比較部63から風呂設定
温度TFS<給湯設定温度TSの旨の通知を受けると、リ
モートコントローラ等の設定に基づく総目標落し込み量
QTS(浴槽へ供給する湯水総量の目標値)、風呂設定温
度TFS、給水温度TC及び給湯温度TMとに基づき、目標
湯張り量QμS及び目標差し水量QCSを算出する。この
計算は、 QTS=QμS+QCS …(1) TFS=(QμS×TM+QCS×TC)/QTS …(2) の連立方程式を解いた以下の解 QμS=(TFS−TC)×QTS/(TM−TC) …(3) QCS=(TM−TFS)×QTS/(TM−TC) …(4) に基づいて行なう、又は、種々のケースについて予め計
算済の解を登録したテーブルを参照して行なう。これ
は、給湯温度TMでの湯張りに差し水を加えることによ
り、最終的に風呂設定温度TFSにすることを意味する。
When the target water filling amount calculation unit 65 and the target water supply amount calculation unit 67 are notified by the temperature comparison unit 63 that the bath setting temperature TFS <the hot water supply setting temperature TS, respectively, based on the settings of the remote controller or the like. Based on the total target drop amount QTS (the target value of the total amount of hot and cold water supplied to the bathtub), the bath set temperature TFS, the hot water supply temperature TC, and the hot water supply temperature TM, the target hot water filling amount QμS and the target hot water supply amount QCS are calculated. This calculation is as follows: QTS = QμS + QCS (1) TFS = (QμS × TM + QCS × TC) / QTS ... (2) The following solution QμS = (TFS-TC) × QTS / (TM-TC) (3) QCS = (TM-TFS) * QTS / (TM-TC) ... (4), or by referring to a table in which precalculated solutions are registered for various cases. This means that the water is finally set to the bath set temperature TFS by adding water to the filling at the hot water supply temperature TM.

【0030】尚、上記式でTMに代えてその目標値であ
るTSを用いてもよい。また、TCは差し水中の平均値が
望ましいが、その変動は小さいと見ることができるの
で、瞬時値を用いてもよい。
Note that the target value TS may be used in place of TM in the above equation. Further, although TC is preferably the average value in the water supply, it can be considered that the variation is small, so an instantaneous value may be used.

【0031】一方、TFS≧TSである場合は、目標湯張
り量算出部65及び目標差し水量算出部67は、総目標
落し込み量QTSをそのまま目標湯張り量QμSとし、目
標差し水量QCSはゼロとする。これは、湯張りにおい
て、差し水を併用しないことを意味する。
On the other hand, when TFS ≧ TS, the target hot water filling amount calculation unit 65 and the target water filling amount calculation unit 67 directly set the total target drop amount QTS to the target hot water filling amount QμS, and the target water feeding amount QCS is zero. And This means that water filling is not used together.

【0032】こうして求められた目標湯張り量QCSは弁
駆動要否決定部61に出力され、また、目標差し水量Q
CSは弁駆動要否決定部61に通知される。
The target amount of water filling QCS thus obtained is output to the valve drive necessity determining unit 61, and the target amount of supplied water Q
CS is notified to the valve drive necessity determination unit 61.

【0033】三方弁駆動部71は駆動要否決定部61か
らの信号に基づき、三方弁35の開位置をバイパス側、
熱交換機側又は開始位置に駆動する。
The three-way valve drive unit 71 determines the open position of the three-way valve 35 on the bypass side based on the signal from the drive necessity determination unit 61.
Drive to the heat exchanger side or start position.

【0034】湯張り弁駆動部73は、弁駆動要否決定部
61から湯水電磁弁17を開く指令を受けると、温水電
磁弁17を開き、弁駆動要否決定部61から湯水電磁弁
17を閉じる指令を受けると、湯水電磁弁17を閉じ
る。
Upon receiving a command to open the hot water solenoid valve 17 from the valve drive necessity determination unit 61, the hot water filling valve drive unit 73 opens the hot water solenoid valve 17 and opens the hot water solenoid valve 17 from the valve drive necessity determination unit 61. Upon receipt of the close command, the hot water electromagnetic valve 17 is closed.

【0035】差し水弁駆動部75は、弁駆動要否決定部
61から差し水電磁弁23を開く指令を受けると、差し
水電磁弁23を開き、弁駆動要否決定部61から差し水
電磁弁23を閉じる指令を受けると、差し水電磁弁23
を閉じる。
When the water supply valve driving unit 75 receives a command to open the water supply solenoid valve 23 from the valve drive necessity determination unit 61, the water supply solenoid valve 23 is opened, and the water supply solenoid is supplied from the valve drive necessity determination unit 61. When receiving a command to close the valve 23, the water supply solenoid valve 23
Close.

【0036】弁駆動要否決定部61は、温度比較部63
からの比較結果がTFS<TSの場合は、まず、三方弁駆
動部71に指令して三方弁35のバイパス側を開かせ、
差し水弁駆動部75に指令して差し水電磁弁23を開さ
せるとともに、積算水量検出部59に指令して差し水量
QCを求めさせる。そして、差し水量QCが目標差し水量
QCSに達した時点で、弁駆動要否決定部61は、差し水
弁駆動部75に指令して差し水電磁弁23を閉じさせる
とともに、三方弁駆動部71に指令して三方弁35を閉
じさせる。
The valve drive necessity determining unit 61 includes a temperature comparing unit 63.
If the comparison result from TFS <TS, first, the three-way valve drive unit 71 is instructed to open the bypass side of the three-way valve 35.
The water supply valve drive unit 75 is instructed to open the water supply solenoid valve 23, and the integrated water amount detection unit 59 is instructed to obtain the water supply amount QC. Then, at the time when the amount of water supply QC reaches the target amount of water supply QCS, the valve drive necessity determination unit 61 instructs the water supply valve drive unit 75 to close the water supply solenoid valve 23, and the three-way valve drive unit 71. To close the three-way valve 35.

【0037】続いて、弁駆動要否決定部61は、三方弁
駆動部71に指令して三方弁35のバイパス側を開か
せ、湯張り弁駆動部73に指令して温水電磁弁17を開
かせるとともに、積算湯量検出部57に指令して湯張り
量Qμを求めさせる。そして、湯張り量Qμが目標湯張
り量QμSに達した時点で、弁駆動要否決定部61は、
湯張り弁駆動部73に指令して温水電磁弁17を閉じさ
せるとともに、三方弁駆動部71に指令して三方弁35
を閉じさせる。
Subsequently, the valve drive necessity determination unit 61 instructs the three-way valve drive unit 71 to open the bypass side of the three-way valve 35, and instructs the water filling valve drive unit 73 to open the hot water solenoid valve 17. At the same time, the integrated hot water amount detector 57 is instructed to obtain the hot water filling amount Qμ. Then, when the amount of water filling Qμ reaches the target amount of water filling QμS, the valve drive necessity determination unit 61
The hot water valve drive unit 73 is instructed to close the hot water solenoid valve 17, and the three-way valve drive unit 71 is instructed to close the three-way valve 35.
To close.

【0038】一方、TFS≧TSの場合は、弁駆動要否決
定部61は、湯張り弁駆動部73と積算湯量検出部57
とに対してのみ、上記と同様の指令を与えて湯張りを行
なわせ、そして、湯張り量Qμが目標湯張り量QμS
(=QTS)に達すると、湯張りを終了させる。
On the other hand, in the case of TFS ≧ TS, the valve drive necessity determination unit 61 determines that the hot water filling valve drive unit 73 and the integrated hot water amount detection unit 57.
Only for and, the same command as above is given to perform the filling, and the filling amount Qμ is the target filling amount QμS.
When reaching (= QTS), the filling of water is finished.

【0039】更に、弁駆動要否決定部61は、温度比較
部63からの給湯設定温度TSと風呂設定温度TFSとの
比較結果に基づき、TFをTFSまで加熱するよう追焚加
熱判断部69に対し指示する。
Further, the valve drive necessity determination unit 61 instructs the additional heating determination unit 69 to heat TF to TFS based on the comparison result of the hot water supply set temperature TS and the bath set temperature TFS from the temperature comparison unit 63. Give instructions to.

【0040】次に、以上のような構成の制御装置41の
制御動作を、図3に示すフローチャートを参照しながら
説明する。
Next, the control operation of the control device 41 having the above configuration will be described with reference to the flow chart shown in FIG.

【0041】リモートコントローラ等に設けられた湯張
りスイッチ(図示しない)がオンされると(ステップS
1)、制御装置41は、まず、風呂設定温度TFSと給湯
設定温度TSとを読込みTFS<TSであるか否かを判定す
る(ステップS2)。TFS<TSであると、目標差し水
量QCSと目標湯張り量QμSとを求める(ステップS
3)。そして、まず、差し水電磁弁23を開いて差し水
を行ない(ステップS4)、そして、差し水量QCが目
標差し水量QCSに達すると(ステップS5)、差し水電
磁弁23を閉じて差し水を終了する(ステップS6)。
When a water filling switch (not shown) provided on the remote controller or the like is turned on (step S
1) First, the control device 41 reads the bath set temperature TFS and the hot water supply set temperature TS and determines whether or not TFS <TS (step S2). If TFs <TS, the target water supply amount QCS and the target water filling amount QμS are obtained (step S
3). Then, first, the water supply solenoid valve 23 is opened to perform water supply (step S4), and when the water supply amount QC reaches the target water supply amount QCS (step S5), the water supply solenoid valve 23 is closed to supply water. It ends (step S6).

【0042】次いで、温水電磁弁17を開して湯張りを
開始し(ステップS7)、湯張り量Qμが目標湯張り量
QμSに達すると(ステップS8)、温水電磁弁17を
閉じて湯張りを終了する(ステップS9)。
Next, the hot water solenoid valve 17 is opened to start filling the water (step S7). When the amount of water filling Qμ reaches the target amount of water filling QμS (step S8), the hot water solenoid valve 17 is closed to fill the water. Is finished (step S9).

【0043】この後、風呂実温度TFと風呂設定温度TF
Sとを比較し(ステップS10)、TF<TFSであればT
FがTFSに達するまで風呂の追焚を行う(ステップS1
1)。
After this, the actual bath temperature TF and the bath set temperature TF
S is compared (step S10), and if TF <TFS, then T
The bath is heated until F reaches TFS (step S1).
1).

【0044】一方、ステップS2においてTFS≧TSで
ある場合には、総目標落し込み量QTを目標湯張り量Q
μSとし、かつ、目標差し水量QCSを0として、ステッ
プS7に移行する(ステップS12)。つまり、差し水
をせずに、湯張りだけを行なう。
On the other hand, if TFS ≧ TS in step S2, the total target drop amount QT is set to the target hot water filling amount Q.
With μS and the target water supply amount QCS set to 0, the process proceeds to step S7 (step S12). In other words, only water filling is performed without watering.

【0045】湯張り完了後、TFがTFSに達するまで、
風呂の追焚を行う。
After completion of the filling, until TF reaches TFS,
Reheat the bath.

【0046】以上の制御によれば、給湯設定温度TSに
基づいて燃焼制御を行ないつつ、給湯設定温度TSと風
呂設定温度TFSとの相違は、既存の差し水機能と追焚機
能とを活用して埋め合せることにより、風呂実温度TF
を最終的に風呂設定温度TFSに一致させるようにしてい
るので、湯張り中であっても給湯温度TMは常に給湯設
定温度TSに制御される。また、差し水の経路と追焚の
経路とはそれぞれ給湯経路から独立しているので、差し
水又は追焚中に給湯が使用された場合にも、給湯温度T
Mは給湯設定温度TSに制御できる。これは、風呂実度T
Fは湯張り中も常時設定温度に維持される必要はなく入
浴時の平均温度(攪拌した温度)が風呂設定温度TFSに
達していれば十分であるという点に着目したものであ
る。
According to the above control, while the combustion control is performed based on the hot water supply set temperature TS, the difference between the hot water supply set temperature TS and the bath set temperature TFS is that the existing water supply function and the additional heating function are utilized. The actual bath temperature TF
Finally, the hot water supply temperature TM is always controlled to the hot water supply set temperature TS even when the bath is being filled. Further, since the route of the supplied water and the route of the additional heating are independent of the hot water supply route, even when the hot water is used during the additional water or the additional heating, the hot water supply temperature T
M can be controlled to the hot water supply set temperature TS. This is the bath degree T
It was noted that F does not have to be constantly maintained at the set temperature even during filling with water, and that it is sufficient if the average temperature during bathing (stirred temperature) reaches the bath set temperature TFS.

【0047】また、給湯設定温度TSが風呂設定温度TF
Sより高い場合、最初に差し水を行ない、その後に湯張
りを行なうようにしているため、仮に湯張りの最中に入
浴したしても、浴槽内が高温になっていることはなく安
全である。
Further, the hot water supply set temperature TS is the bath set temperature TF
If the water temperature is higher than S, water is poured first and then water filling is performed, so even if you take a bath while filling water, it is safe because the bath is not hot. is there.

【0048】更に、給湯設定温度TSが風呂設定温度TF
Sよりも高い場合であっても、湯張り終了後に風呂実温
度TFと給湯設定温度TFとを比較して、必要あれば追焚
を行なうようにしているので、湯水の落し込み途中で風
呂設定温度TFS等や目標総落込量が変更された場合でも
対処可能である。
Furthermore, the hot water supply set temperature TS is the bath set temperature TF
Even if the temperature is higher than S, the bath actual temperature TF is compared with the hot water supply set temperature TF after the completion of filling, and heating is performed if necessary. It can be dealt with even when the temperature TFS and the like and the target total drop amount are changed.

【0049】ところで、上記実施例では、目標湯張り量
QμS及び目標差し水量QCSの算出は、浴槽への湯水の
落とし込みの開始前に行なっているが、その開始後も、
図4に示すように常時QμS、QCSの算出を行い、更新
することで、一連の差し水、湯張り動作の途中で風呂設
定温度TFSや総目標落し込み量QTSおよび給湯設定温度
TSが変更された場合にも、以下に述べるように最終的
な風呂温度や総落し込み量を新たに設定した値にするこ
とができる。
By the way, in the above embodiment, the calculation of the target filling amount QμS and the target water supply amount QCS is performed before the start of dropping hot water into the bathtub, but after that,
As shown in Fig. 4, by constantly calculating and updating QμS and QCS, the bath set temperature TFS, the total target drop amount QTS, and the hot water supply set temperature TS are changed during the series of water filling and filling operations. In this case, the final bath temperature and the total sink amount can be set to new values as described below.

【0050】尚、この場合には、TμおよびTCの代り
に下式で定義された*Tμ及び*TCを用いるのが良
い。
In this case, it is preferable to use * Tμ and * TC defined by the following equation instead of Tμ and TC.

【0051】*Tμ={Σ(Tμ・△Qμ)}/Qμ *TC ={Σ(TC ・△QC )}/QC 1.総目標落とし込み量QTSを増加した場合 a 差し水中 直ちに目標差し水量QCS及び目標湯張りQμS変更し、
差し水終了後に湯張りをする。TF=TFSとなる。
* Tμ = {Σ (Tμ · ΔQμ)} / Qμ * TC = {Σ (TC · ΔQC)} / QC 1. When the total target drop amount QTS is increased a Immediately in water Immediately change target water amount QCS and target water filling QμS
After filling the water, fill it with water. TF = TFS.

【0052】b 湯張り中 直ちに目標差し水量QCS及び目標湯張り量QμSを増や
し、湯張りを継続し湯張り終了後不足分の差し水を行
う。TF=TFSとなる。
B During filling of water Immediately increase the target water supply amount QCS and the target amount of water filling QμS, continue the water filling, and perform the insufficient water supply after the water filling is completed. TF = TFS.

【0053】2.総目標落し込み量QTSを減少させた場
合 a 差し水中 直ちに目標差し水量QCS及び目標湯張り量QμSを変更
し、差し水終了後に湯張りをする。TF=TFSとなる。
2. When the total target drop QTS is decreased: a. Immersion water Immediately change the target quantity of water supply QCS and the target amount of filling water QμS, and fill water after the completion of watering. TF = TFS.

【0054】b 湯張り中 目標差し水量及びQCS目標湯張り量QμSを変更し、変
更後の目標湯張り量QμSまで湯張りしようとするが、
途中でQC+Qμ≧QTSとなるため湯張りを終了する。
QC>QCSなので落とし込みを終了する。TS<TFSなの
で追焚によりTFSまで昇温する。
B During filling of water The target amount of water to be poured and the QCS target amount of water filling QμS are changed, and it is attempted to fill up to the target amount of water filling QμS after the change.
Since QC + Qμ ≧ QTS is reached on the way, the filling of water is completed.
Since QC> QCS, the import is finished. Since TS <TFS, the temperature rises to TFS by additional heating.

【0055】3.風呂設定温度TFSを上げた場合。3. When the bath set temperature TFS is raised.

【0056】a 差し水中 直ちに目標差し水量QCS及び目標湯張り量QμSを変更
し、差し水終了後に湯張りをする。TF=TFSとなる。
A. Immersion water Immediately, the target water supply amount QCS and the target filling water amount QμS are changed, and the filling water is filled after the completion of the water feeding. TF = TFS.

【0057】b 湯張り中 目標湯張り量QμSを増し、目標差し水量QCS減らす
が、湯張り途中でQC+Qμ≧QTSとなるため湯張りを
終了する。QC>QCSなので落とし込みを終了する。TF
<TFSなので追焚によりTFSまで昇温する。
B During filling of water The target amount of water filling QμS is increased and the amount of target water supply QCS is decreased, but since QC + Qμ ≧ QTS during the filling of water, the filling of water is completed. Since QC> QCS, the import is finished. TF
Since it is TFS, the temperature is raised to TFS by reheating.

【0058】4.風呂設定温度TFSを下げた場合 a 差し水中 直ちに目標差し水量QCS及び目標湯張り量QμSを変更
し、差し水終了後に湯張りをする。TF=TFSとなる。
4. When the bath set temperature TFS is lowered a Immersion water Immediately change the target water supply amount QCS and the target water filling amount QμS, and refill the water after the completion of watering. TF = TFS.

【0059】b 湯張り中 目標湯張り量QμSを減らし、目標差し水量QCSを増
し、目標湯張り量QμSまで湯張りをする。QC<QCSな
ので再度差し水して落とし込みを終了する。
B During filling of water The target amount of water filling QμS is reduced, the amount of target water supply QCS is increased, and water is filled up to the target amount of water filling QμS. Since QC <QCS, refill with water and finish dropping.

【0060】TF=TFSとなる。TF = TFS.

【0061】5.給湯設定温度TSを変更した場合 *Tμを用いているので正しく算出できる。5. When the hot water supply set temperature TS is changed * Tμ is used, so it can be calculated correctly.

【0062】a 給湯設定温度TSを上げる。A Raise the hot water supply set temperature TS.

【0063】湯張り中は目標湯張り量QμSを減らして
再度差し水をする。
During filling with water, the target amount of filling water QμS is reduced and water is supplied again.

【0064】b 給湯設定温度TSを下げる。B The hot water supply set temperature TS is lowered.

【0065】湯張り中は目標湯張り量QμSを増やして
QC+Qμ≧QTSとなり落とし込みを終了する。TF<T
FSなので追焚によりTFSまで昇温する。
During the filling with water, the target amount of filling QμS is increased to QC + Qμ ≧ QTS, and the dropping is finished. TF <T
Since it is FS, it is heated up to TFS by heating.

【0066】図5は、本発明の他の実施例に係る制御装
置の動作を示したフローチャートである。
FIG. 5 is a flow chart showing the operation of the control device according to another embodiment of the present invention.

【0067】尚、本実施例に係る制御装置の構成は、前
掲の図2で示した制御装置41の構成と基本的に同一で
あるが、弁駆動要否決定部61の動作が前の実施例と多
少異なる。即ち、弁駆動要否決定部61は、目標給湯温
度TSが目標風呂温度TFSより高い場合、前の実施例と
同様に差し水と湯張りの双方を行なうのであるが、その
場合、1回あたりの差し水と湯張りの合計量を10リッ
トルを限度として毎回前出の式と同様にして、1回あた
りの目標差し水量Q’CSと1回あたりの目標湯張り量
Q’μSとを計算し、各回の差し水量Q’Cの累積値と湯
張り量Q’μの累積値の合計が総目標落とし込み量QTS
に達するまで繰り返すようにしている。この動作を図5
を参照して詳細に説明する。
The configuration of the control device according to this embodiment is basically the same as the configuration of the control device 41 shown in FIG. 2 described above, but the operation of the valve drive necessity determining unit 61 is the same as that of the previous implementation. Somewhat different from the example. That is, when the target hot water supply temperature TS is higher than the target bath temperature TFS, the valve drive necessity determination unit 61 performs both the water filling and the water filling as in the previous embodiment. The target amount of water to be supplied Q'CS per time and the amount of water to be filled Q'μS per time are calculated in the same manner as the above formula, with the total amount of water supply and water filling being 10 liters as a limit. However, the sum of the cumulative value of the amount of water supply Q'C and the cumulative value of the amount of water filling Q'μ at each time is the total target drop amount QTS.
I try to repeat until I reach. This operation is shown in FIG.
Will be described in detail with reference to.

【0068】図5において、図示しない湯張りスイッチ
がONされた時(S21)、まず差し水、湯張り量の累
積値ΣQ’C、ΣQ’μをクリアし(S22)、総目標
落とし込み量QTSまで10リットル以上落とし込む必要
があるか判断し(S23)、10リットル以下の場合は
残量をその回の目標落とし込み量Q’TSとし(S2
4)、10リットル以上の場合はその回の目標落とし込
み量Q’TSを10リットルとする(S25)。
In FIG. 5, when the water filling switch (not shown) is turned on (S21), first, the cumulative values ΣQ'C and ΣQ'μ of the water supply and the water filling are cleared (S22), and the total target dropping amount QTS is reached. It is judged whether it is necessary to drop 10 liters or more until (S23), and if it is 10 liters or less, the remaining amount is set as the target drop amount Q'TS for that time (S2
4) If it is 10 liters or more, the target drop amount Q'TS for that time is set to 10 liters (S25).

【0069】次に風呂設定温度TFSと給湯設定温度TS
との比較を行い(S27)、給湯設定温度TSの方が高
い場合には前出と同様の式に基づいてその回の目標落と
し込み量Q’TSをその回の目標差し水量Q’CSとその回
の目標湯張り量Q’μSとにわけ(S27)、給湯設定
温度の方が低いか等しい場合にはその回の目標落とし込
み量Q’TSはすべてその回の目標湯張り量Q’μSとす
る(S28)。
Next, the bath set temperature TFS and the hot water supply set temperature TS
(S27), if the hot water supply set temperature TS is higher, the target drop amount Q'TS at that time and the target water supply amount Q'CS at that time are calculated based on the same formula as the above. When the hot water supply set temperature is lower than or equal to the target hot water filling amount Q'μS (S27), the target drop amount Q'TS at that time is all the target hot water filling amount Q'μS at that time. Yes (S28).

【0070】その回の差し水量の積算値QCをクリアし
た後(S29)、差し水弁を開き(S30)、差し水量
の積算値QCが目標値Q’CSになるまで(S31)差し
水を行い(S32)、差し水の累積値ΣQ’Cを更新す
る(S33)。
After clearing the cumulative value QC of the amount of water supply at that time (S29), the water supply valve is opened (S30), and the water supply is continued until the integrated value QC of the amount of water supply reaches the target value Q'CS (S31). Then, the cumulative value ΣQ′C of the supplied water is updated (S32) (S33).

【0071】その後上記同様その回の湯張り量の累積値
Qμが目標値Q’μSになるまで(S36)、湯張りを
行い(S37)、湯張り量の累積値を更新する(S3
8)。
Thereafter, similar to the above, until the cumulative value Qμ of the amount of water filling at that time reaches the target value Q′μS (S36), water filling is performed (S37), and the accumulated value of the amount of water filling is updated (S3).
8).

【0072】これまでの差し水量の累積値ΣQ’Cと湯
張りの量の累積値ΣQ’μの合計が総目標落とし込み量
QTSに達していなければ(S39)、再びS23に戻
り、以上の動作を繰り返す。総目標落とし込み量QTSに
達していれば、風呂実温度TFが風呂設定温度TFSに達
するまで(S40)、追焚を行う(S41)。
If the sum of the cumulative value ΣQ'C of the amount of water supplied and the cumulative value ΣQ'μ of the amount of water filling has not reached the total target dropping amount QTS (S39), the process returns to S23 again, and the above operation is performed. repeat. If the total target drop amount QTS has been reached, additional heating is performed (S41) until the actual bath temperature TF reaches the preset bath temperature TFS (S40).

【0073】本実施例においても、前の実施例における
と同様な効果を奏し得る。
Also in this embodiment, the same effect as in the previous embodiment can be obtained.

【0074】更に、本実施例では、湯張りと差し水とを
少量ずつ交互に行うため、湯張り中でも風呂実温度TF
は目標風呂温度TFSにかなり近くなっており、よって湯
張り中に入浴しても比較的快適である。また、湯張り中
に設定温度や目標総落込量が変更された場合、これに応
じて差し水量及び湯張り量を直ちに変更することができ
るため、例えば、湯張りを途中で止めたような場合でも
風呂実温度TFを風呂設定温度TFSに良好に一致させる
ことができるので、特に、追焚機能を持たない給湯機に
は好適である。
Further, in this embodiment, since the filling of water and the filling of water are alternately performed little by little, the actual bath temperature TF can be maintained even during filling of water.
Is quite close to the target bath temperature TFS, so it is relatively comfortable to take a bath while filling water. Also, when the set temperature or the target total drop amount is changed during filling, it is possible to immediately change the amount of water supplied and the amount of filling, for example, when filling is stopped halfway. However, since the actual bath temperature TF can be made to match the bath set temperature TFS well, it is particularly suitable for a water heater having no reheating function.

【0075】なお、本発明は上記実施例にのみ限定され
るものではなく、その要旨を逸脱することなく他の種々
の態様でも実施することができる。
The present invention is not limited to the above embodiments, and can be implemented in various other modes without departing from the spirit of the invention.

【0076】[0076]

【発明の効果】以上説明したように本発明によれば、同
一の給湯系統から湯張りと一般給湯とを行なう給湯機に
おいて、風呂設定温度が給湯設定温度より低い場合で
も、給湯側では高温の出湯を行ないつつ、同時に風呂側
では湯張り完了時に設定温度通りに湯温を調整でき、し
かも、湯張り専用の混合弁などを用いずに低コストでこ
れを実現できる。
As described above, according to the present invention, in a water heater that performs hot water filling and general hot water supply from the same hot water supply system, even if the bath set temperature is lower than the hot water set temperature, there is a high temperature on the hot water supply side. At the same time as the hot water is discharged, the hot water can be adjusted on the bath side according to the set temperature when the water filling is completed, and this can be achieved at low cost without using a mixing valve dedicated to the water filling.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の制御装置が適用される1缶2水路式の
給湯機の一実施例の配管構成を示す配管図。
FIG. 1 is a piping diagram showing a piping configuration of an embodiment of a 1-can / 2-channel water heater to which a control device of the present invention is applied.

【図2】本発明の一実施例に係る制御装置の機能構成を
示したブロック図。
FIG. 2 is a block diagram showing a functional configuration of a control device according to an embodiment of the present invention.

【図3】本発明の一実施例に係る制御装置の制御動作を
示したフローチャート。
FIG. 3 is a flowchart showing a control operation of the control device according to the embodiment of the present invention.

【図4】本発明の一実施例に係る制御装置の制御動作を
示したフローチャート。
FIG. 4 is a flowchart showing a control operation of the control device according to the embodiment of the present invention.

【図5】本発明の他の実施例に係る制御装置の制御動作
を示したフローチャート。
FIG. 5 is a flowchart showing a control operation of a control device according to another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

17 温水電磁弁 23 差し水電磁弁 57 積算湯量検出部 59 積算水量検出部 61 弁駆動要否決定部 63 温度比較部 65 目標湯張り量算出部 67 目標差し水量算出部 73 湯張り弁駆動部 75 差し水弁駆動部 17 Hot Water Solenoid Valve 23 Water Supply Solenoid Valve 57 Integrated Hot Water Amount Detection Unit 59 Integrated Water Amount Detection Unit 61 Valve Drive Necessity Determination Unit 63 Temperature Comparison Unit 65 Target Hot Water Amount Calculation Unit 67 Target Hot Water Amount Calculation Unit 73 Hot Water Valve Drive Unit 75 Water valve drive

───────────────────────────────────────────────────── フロントページの続き (72)発明者 丸山 浩樹 兵庫県神戸市東灘区魚崎浜町43番1号 日 本ユプロ株式会社内 (72)発明者 河内 登 兵庫県神戸市東灘区魚崎浜町43番1号 日 本ユプロ株式会社内 (72)発明者 木幡 幸雄 兵庫県神戸市東灘区魚崎浜町43番1号 日 本ユプロ株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroki Maruyama Inventor Hiroki Maruyama 43-1, Uozakihama-cho, Higashinada-ku, Kobe-shi, Hyogo Nihon Yupro Co., Ltd. (72) Inventor Noboru 43-1, Uozakihama-cho, Higashinada-ku, Kobe-shi No. Nihon Yupro Co., Ltd. (72) Inventor Yukio Kohata 43-1 Uozakihama-cho, Higashinada-ku, Kobe-shi, Hyogo Nihon Yupro Co., Ltd.

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 同一の給湯系統から浴槽への湯張りと一
般給湯とを行う機能と、浴槽への差し水を行う機能とを
もつ給湯機の制御装置において、 風呂設定温度と給湯設定温度とを比較する設定温度比較
手段と、 浴槽へ湯水を落し込む際、前記設定温度比較手段からの
比較結果に応じて、前記湯張り機能と前記差し水機能と
を制御する制御手段と、 を備えることを特徴とする給湯機の制御装置。
Claim: What is claimed is: 1. A controller for a water heater having a function of filling the bathtub with hot water from the same hot water supply system and a function of supplying hot water to the bathtub. And a control means for controlling the water filling function and the water feeding function according to the comparison result from the set temperature comparison means when the hot water is dropped into the bathtub. A control device for a water heater.
【請求項2】 請求項1記載の給湯機の制御装置におい
て、 前記制御手段は、前記比較結果が給湯設定温度の方が高
いことを示すとき、前記差し水機能と湯張り機能とを併
用することを特徴とする給湯機の制御装置。
2. The water heater control device according to claim 1, wherein the control means uses the water supply function and the water filling function together when the comparison result indicates that the hot water supply set temperature is higher. A control device for a water heater characterized by the above.
【請求項3】 請求項1又は請求項2記載の給湯機の制
御装置において、 前記制御手段は、前記比較結果が風呂設定温度の方が高
いことを示すとき、前記湯張り機能のみを用いることを
特徴とする給湯機の制御装置。
3. The hot water supply controller according to claim 1, wherein the control means uses only the water filling function when the comparison result indicates that the bath set temperature is higher. A control device for a water heater.
【請求項4】 請求項1又は請求項2記載の給湯機の制
御装置において、 前記制御手段は、前記比較結果が給湯設定温度の方が高
いことを示すとき、差し水と湯張りとを交互に複数回繰
り返し行うことを特徴とする給湯機の制御装置。
4. The water heater control device according to claim 1 or 2, wherein the control means alternates between water filling and water filling when the comparison result indicates that the hot water set temperature is higher. A control device for a water heater, which is repeatedly performed for several times.
【請求項5】 請求項2又は4記載の給湯機の制御装置
において、 前記制御手段は、先に差し水を行ない、後に湯張りを行
なうことを特徴とする給湯機の制御装置。
5. The water heater control device according to claim 2, wherein the control means performs water supply first and then water filling.
JP15418394A 1994-06-13 1994-06-13 Water heater control device Expired - Fee Related JP3287701B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15418394A JP3287701B2 (en) 1994-06-13 1994-06-13 Water heater control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15418394A JP3287701B2 (en) 1994-06-13 1994-06-13 Water heater control device

Publications (2)

Publication Number Publication Date
JPH07332762A true JPH07332762A (en) 1995-12-22
JP3287701B2 JP3287701B2 (en) 2002-06-04

Family

ID=15578656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15418394A Expired - Fee Related JP3287701B2 (en) 1994-06-13 1994-06-13 Water heater control device

Country Status (1)

Country Link
JP (1) JP3287701B2 (en)

Also Published As

Publication number Publication date
JP3287701B2 (en) 2002-06-04

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