JPS6316665B2 - - Google Patents
Info
- Publication number
- JPS6316665B2 JPS6316665B2 JP1263182A JP1263182A JPS6316665B2 JP S6316665 B2 JPS6316665 B2 JP S6316665B2 JP 1263182 A JP1263182 A JP 1263182A JP 1263182 A JP1263182 A JP 1263182A JP S6316665 B2 JPS6316665 B2 JP S6316665B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- amount
- storage tank
- water storage
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 155
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 238000009835 boiling Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000003287 bathing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
- G05D23/1923—Control of temperature characterised by the use of electric means characterised by the type of controller using thermal energy, the cost of which varies in function of time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
【発明の詳細な説明】
本発明は、深夜電力を利用する貯湯式電気温水
器の制御装置に関し、残湯熱量を把握して、予め
設定した使用湯量に対して発熱体に印加すべき通
電時間を算出するとともに、深夜電力の通電時間
終了時刻と同時に前記通電時間が得られるよう発
熱体への通電開始時間を制御することにより、残
湯量ならびに沸上げ後の熱ロスを少なくすること
を目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a hot water storage type electric water heater that utilizes late-night electricity. The purpose is to reduce the amount of remaining hot water and heat loss after boiling by calculating the amount of water and controlling the start time of energization to the heating element so that the energization time is obtained at the same time as the end of the energization time of late-night electricity. do.
第1図は一般的な貯湯式電気温水器の構成図
で、第2図は従来の貯湯式電気温水器の主要電気
回路図を示す。 FIG. 1 is a block diagram of a general hot water storage type electric water heater, and FIG. 2 is a main electrical circuit diagram of a conventional hot water storage type electric water heater.
図において、1は貯湯タンク、2は発熱体、3
は自動温度調節器、4は電源、5は深夜電力用の
タイムスイツチで、通電時間帯は一般には深夜の
23時から翌朝の7時までである。 In the figure, 1 is a hot water storage tank, 2 is a heating element, and 3
is an automatic temperature controller, 4 is a power supply, and 5 is a time switch for late-night power.
From 11pm to 7am the next morning.
次に作用、動作を説明する。 Next, the function and operation will be explained.
深夜電力の通電開始時刻になると、タイムスイ
ツチ5の接点が閉成して、発熱体2への通電が開
始される。そして、貯湯タンク1内の湯温が85
〔℃〕になると、自動温度調節器3の接点が開成
して発熱体2への通電が停止される。 When the midnight power supply start time arrives, the contact of the time switch 5 is closed and the supply of electricity to the heating element 2 is started. And the water temperature in hot water storage tank 1 is 85
When the temperature reaches [° C.], the contacts of the automatic temperature controller 3 are opened and the electricity supply to the heating element 2 is stopped.
このようにして、毎朝貯湯量全部が85〔℃〕に
沸上がつている。 In this way, the entire amount of stored hot water is boiled to 85 degrees Celsius every morning.
しかしながら、湯の使用量は常に同じとは限ら
ず、日々、大きく季節によつて異なつている。特
に入浴の有無は湯の使用量を大きく左右する要素
となつており、入浴しない日は貯湯量の半分以上
の湯を残すことにもなる。従つて、残湯がある場
合には短時間で沸上がつてしまう。 However, the amount of hot water used is not always the same, and varies greatly from day to day and depending on the season. In particular, whether or not a person takes a bath is a factor that greatly influences the amount of hot water used, and on days when a person does not take a bath, more than half of the stored hot water may remain. Therefore, if there is any remaining hot water, it will boil up in a short time.
また、発熱体2への通電は、深夜電力の通電時
刻になると一斉に開始されるため、通電開始直後
には電力負荷の集中が起こり、深夜電力の本来の
目的である電力負荷の均一化が図れず、送電効率
も悪い結果を招くとともに、貯湯タンク1内に沸
上げられた高湯温を使用に供さないで放置する時
間が長くなり、自然放熱による熱ロスが大きくな
るという欠点を有していた。 In addition, since the power supply to the heating elements 2 starts all at once at the time when the late-night power supply is applied, the power load is concentrated immediately after the power supply starts, and the equalization of the power load, which is the original purpose of the late-night power supply, is prevented. This results in poor power transmission efficiency, and the disadvantage is that the high temperature water heated in the hot water storage tank 1 is left unused for a long time, increasing heat loss due to natural heat radiation. was.
また、従来の貯湯式電気温水器には残湯熱量を
検出する装置は装備されておらず、残湯量を検出
するものが一部でやられてきただけであつた。 Furthermore, conventional hot water storage type electric water heaters are not equipped with a device for detecting the amount of heat of remaining hot water, and only some of them have been equipped with devices that detect the amount of remaining hot water.
しかし、この残湯量検出についても貯湯タンク
の外壁面にサーモスタツトやサーミスターなどの
温度センサーを複数個並べて、その位置での温度
変化を検出する段階的な測定であつた。 However, this method of detecting the amount of remaining hot water was also a step-by-step method in which multiple temperature sensors, such as thermostats and thermistors, were lined up on the outer wall of the hot water storage tank to detect temperature changes at those locations.
このため、検出された残湯量もそれ程精度の高
い値ではなく、次回の沸上げの単なるデータとし
て使用するだけのものが多かつた。 For this reason, the detected amount of remaining hot water was not a very accurate value, and in many cases it was simply used as data for the next boiling.
本発明は、これらの欠点を解消しようとするも
ので、定常的な使用湯量と暫定的な使用湯量を予
め設定可能にし、この予め設定された翌日の使用
湯量に対して貯湯タンク内の残湯熱量を検出し、
発熱体への所要通電時間を算出して、深夜電力の
通電終了時刻に前記所要通電時間が消化し得るよ
う発熱体への通電開始時間を制御することによ
り、残湯量を少なくするとともに、沸上げ後の熱
ロスをできるだけ排除しようとするものである。 The present invention aims to solve these drawbacks by making it possible to set the regular amount of hot water used and the temporary amount of hot water used in advance, and determining the amount of hot water remaining in the hot water storage tank based on the preset amount of hot water used the next day. Detects the amount of heat,
By calculating the required energization time to the heating element and controlling the start time of energization to the heating element so that the required energization time can be completed at the end of the midnight electricity supply, the amount of remaining hot water can be reduced and boiling can be achieved. The aim is to eliminate as much subsequent heat loss as possible.
以下、この発明を第3図に示す通電制御ブロツ
ク図に基づいて説明する。 The present invention will be explained below based on the energization control block diagram shown in FIG.
第3図において、6は貯湯タンク1に貯える翌
日の定常的な使用湯量を予め設定するための定常
湯量設定装置、7は同様に一回限りの暫定的な使
用湯量を予め設定するための暫定湯量設定装置で
ある。 In Fig. 3, 6 is a constant hot water amount setting device for presetting the next day's regular amount of hot water stored in the hot water storage tank 1, and 7 is a provisional hot water amount setting device for presetting a one-time provisional hot water amount. This is a hot water amount setting device.
前記定常湯量設定装置6と暫定湯量設定装置7
は同様の湯量設定装置であるが、前者は沸上げ湯
量を定常的に設定する装置であり、一般的には使
用湯量が比較的多い入浴する場合を対象にしてい
るのに対し、後者は入浴しない場合など使用湯量
が定常の場合よりきわめて少ないかあるいは湯を
全く使用しない場合に、一時的に設定する装置で
あり、通常は定常湯量設定装置6が動作してい
て、この状態で暫定湯量設定すると、一日だけは
優先的に暫定湯量設定で沸上げ、沸上げが完了す
る翌朝には自動的に暫定湯量設定は解除され、定
常湯量設定にもどる構成になつている。 The steady hot water amount setting device 6 and the provisional hot water amount setting device 7
is a similar hot water amount setting device, but the former is a device that constantly sets the amount of boiling water and is generally intended for bathing where the amount of hot water used is relatively large, whereas the latter is for bathing where the amount of hot water used is relatively large. This is a device that is temporarily set when the amount of hot water used is extremely less than the normal case, or when no hot water is used at all. Normally, the steady hot water amount setting device 6 is operating, and the provisional hot water amount setting is performed in this state. Then, for one day only, the temporary hot water amount setting is given priority for boiling, and the next morning when boiling is complete, the provisional hot water amount setting is automatically canceled and the system returns to the steady water amount setting.
8は前記定常湯量設定装置6または暫定湯量設
定装置7で設定された設定値から貯湯タンク1に
貯えておくべき湯の熱量を算出する演算器Aであ
る。 Reference numeral 8 denotes an arithmetic unit A that calculates the amount of heat of hot water to be stored in the hot water storage tank 1 from the setting value set by the steady water amount setting device 6 or the provisional hot water amount setting device 7.
9は貯湯タンク1内を撹拌し、その撹拌前と撹
拌後における貯湯タンク1下部の温度変化から残
湯量を検出するための残湯熱量検出装置、10は
前記演算器A8と残湯熱量検出装置9で検出した
熱量の差から発熱体2への所要通電時間を算出す
るための演算器Bであり、11は深夜電力の通電
終了時刻に演算器B10で求めた所定通電時間が
得られるよう発熱体2への通電開始時間を制御す
るためのタイマー装置である。 Reference numeral 9 denotes a residual water heat amount detection device for stirring the inside of the hot water storage tank 1 and detecting the amount of remaining hot water from the temperature change at the bottom of the hot water storage tank 1 before and after the stirring; 10 refers to the arithmetic unit A8 and the remaining water heat amount detection device; Calculator B calculates the required energization time to the heating element 2 from the difference in the amount of heat detected in 9, and 11 calculates the required energization time to the heating element 2 to obtain the predetermined energization time determined by the calculator B10 at the end of the late-night power supply time. This is a timer device for controlling the start time of energization to the body 2.
次に上記構成についてその具体的動作例を記号
と算式を使つて説明する。まず、深夜電力通電時
間帯に入る前に、ユーザーによつて翌日の使用湯
量がインプツトされる。ここで、ユーザーが定常
湯量設定装置6または暫定湯量設定装置7でイン
プツトした翌日の使用湯量をV(湯温T〔℃〕)と
すると、演算器A8は、
K1=(T−t)×V 〔Kcal〕
の演算を行い、深夜電力の通電時間終了時刻まで
に貯湯タンク1内に貯えておくべき湯量の熱量
K1〔kcal〕を算出する。 Next, a concrete example of the operation of the above configuration will be explained using symbols and formulas. First, before entering the late-night power-on period, the user inputs the amount of hot water used for the next day. Here, if the amount of hot water used on the next day inputted by the user using the steady water amount setting device 6 or the temporary hot water amount setting device 7 is V (water temperature T [°C]), the calculator A8 calculates the following equation: K 1 = (T-t)× Calculate V [Kcal] and calculate the calorific value of the amount of hot water that should be stored in the hot water storage tank 1 by the end of the late-night power supply time.
Calculate K 1 [kcal].
また残湯熱量検出装置9は例えば後述するよう
な方法によつて貯湯タンク1内に残湯として残さ
れている湯量の熱量K2〔kcal〕を検出する。 Further, the residual hot water heat quantity detection device 9 detects the calorific value K 2 [kcal] of the quantity of hot water remaining as residual hot water in the hot water storage tank 1, for example, by a method as described later.
そして演算器B10は、前記演算器A8及び残
湯熱量検出装置9で検出したK1,K2をもとに
H=(K1−K2)/860×W 〔hr〕
の演算を行い、貯湯タンク1内に貯えておくべき
湯量の熱量K1から残湯分が保有している熱量K2
を差し引いた正味の印加すべき熱量より発熱体2
への所要通電時間H〔hr〕を算出するものである。
(1KWH=860Kcal)。ここで、Wは発熱体2の定
格消費電力(KW)を表わす。そしてタイマー装
置11は深夜電力の通電時間終了時刻に前記演算
器B10で求めた所要通電時間H〔hr〕が得られ
るよう計時し、例えば深夜電力通電時間帯の残り
時間と前記所要通電時間H〔hr〕が等しくなつた
時点から発熱体2への通電を開始させ、深夜電力
の通電時間の終了時刻と同時に通電が終了するよ
うに制御する。従つて、発熱体2は貯湯タンク1
内の残湯熱量が多いほど、通電時間が少なくてす
むとともに、貯湯タンク1内に高温湯を長時間放
置することもないので、放熱ロスを少なくできる
ものである。さらに湯量設定は、定常的なものと
暫定的なものとを適宜設定できるため、季節的な
変化には定常湯量設定装置6で対応し、日々の大
きな変化には暫定湯量設定装置7で対応すること
により残湯量が減少して維持費も安くなるもので
ある。 Then, the calculator B10 calculates H=( K1 - K2 )/860×W [hr] based on K1 and K2 detected by the calculator A8 and the residual water heat amount detection device 9, Calorific value of the amount of hot water that should be stored in hot water storage tank 1 K 1 to calorific value held by the remaining hot water K 2
heating element 2 from the net amount of heat that should be applied after subtracting
The required energization time H [hr] is calculated.
(1KWH=860Kcal). Here, W represents the rated power consumption (KW) of the heating element 2. Then, the timer device 11 measures the time so that the required energization time H [hr] obtained by the calculator B10 is obtained at the end time of the late-night power energization time, and for example, the remaining time of the late-night power energization time period and the required energization time H[hr] are obtained. hr] becomes equal, the power supply to the heating element 2 is started, and the power supply is controlled so as to end at the same time as the end time of the late-night power supply time. Therefore, the heating element 2 is connected to the hot water storage tank 1.
The greater the amount of heat remaining in the hot water, the shorter the energizing time is required, and the hot water will not be left in the hot water storage tank 1 for a long time, so heat radiation loss can be reduced. Furthermore, since the hot water amount setting can be set as appropriate between a steady and temporary amount, seasonal changes can be handled by the steady hot water amount setting device 6, and large daily changes can be handled by the provisional hot water amount setting device 7. This reduces the amount of remaining hot water and reduces maintenance costs.
次に上記残湯量K2の検出方法を第4図〜第6
図により説明する。第4図は本発明における残湯
熱量検出手段の一例を示す貯湯式電気温水器の断
面図、第5図および第6図はその残湯量検出時の
貯湯タンク内部の温度分布図を示す。 Next, the method for detecting the amount of remaining hot water K2 is shown in Figures 4 to 6.
This will be explained using figures. FIG. 4 is a cross-sectional view of a hot water storage type electric water heater showing an example of the residual water heat amount detection means in the present invention, and FIGS. 5 and 6 are temperature distribution diagrams inside the hot water storage tank when detecting the amount of residual hot water.
第4図において、1は貯湯タンク、12は貯湯
タンク1内の湯温を測定すべく貯湯タンク1の下
部に設けられた温度検出器、13は給水管、14
は給湯管、15はこの給湯管の先端部に設けられ
た蛇口である。16は撹拌装置としての循環ポン
プで、一端を貯湯タンク1下部に、他端を給湯管
14の途中に接続された連通管17の途中に設け
られ、貯湯タンク1下部から連通管17および給
湯管14の一部を介して貯湯タンク1の上部へと
水を循環させる。 In FIG. 4, 1 is a hot water storage tank, 12 is a temperature detector installed at the bottom of the hot water storage tank 1 to measure the temperature of hot water in the hot water storage tank 1, 13 is a water supply pipe, and 14
1 is a hot water supply pipe, and 15 is a faucet provided at the tip of this hot water supply pipe. Reference numeral 16 denotes a circulation pump as a stirring device, which is installed in the middle of a communication pipe 17 whose one end is connected to the lower part of the hot water storage tank 1 and the other end is connected to the middle of the hot water supply pipe 14. Water is circulated to the upper part of the hot water storage tank 1 through a part of the hot water storage tank 1.
以上の構成において、残湯熱量K2は次のよう
にして検出できる。 In the above configuration, the residual hot water heat amount K 2 can be detected as follows.
すなわち、第4図に示す如く、最初T1〔℃〕の
湯が貯湯タンク1に満たされているものと仮定す
る。この状態で蛇口15からV1〔〕の湯を使用
した後の貯湯タンク1内部の温度分布を示したの
が第5図である。すなわち、この状態では貯湯タ
ンク下部1aには使用した湯量V1〔〕分だけ給
水管13からt〔℃〕水が流入し、貯湯タンク上
部1bにはT1〔℃〕の湯がV2〔〕残つている。
この状態において蛇口15を閉じたまま、循環ポ
ンプ16を運転すると、貯湯タンク下部1aの水
が連通管17を通つて貯湯タンク上部1bから流
入し、貯湯タンク上部1bの湯層を撹拌するた
め、次第に湯温は平均化する。 That is, as shown in FIG. 4, it is assumed that the hot water storage tank 1 is initially filled with hot water at T 1 [°C]. FIG. 5 shows the temperature distribution inside the hot water storage tank 1 after using hot water of V 1 [] from the faucet 15 in this state. That is, in this state, water of t [°C] flows into the lower part 1a of the hot water storage tank from the water supply pipe 13 by the amount of hot water used V 1 [], and hot water of T 1 [°C] flows into the upper part 1b of the hot water storage tank at V 2 [°C]. ] It remains.
In this state, when the circulation pump 16 is operated with the faucet 15 closed, the water in the lower part 1a of the hot water storage tank flows from the upper part 1b of the hot water storage tank through the communication pipe 17 and stirs the hot water layer in the upper part 1b of the hot water storage tank. The water temperature will gradually average out.
このようにして湯温が平均化して貯湯タンク1
の温度分布を示したのが第6図で、T2〔℃〕の平
均温度となつている。従つて貯湯タンク1の全量
をV0〔〕(固有値V0=V1+V2)とすると、貯湯
タンク下部1aに設けた温度検出器12による循
環ポンプ16運転前の測定温度はt〔℃〕、循環ポ
ンプ16運転後の測定温度はT2〔℃〕なので、残
湯熱量K2〔Kcal〕は次の通り算出できる。 In this way, the water temperature is averaged and the hot water tank 1
Figure 6 shows the temperature distribution of T 2 [°C]. Therefore, if the total amount of the hot water storage tank 1 is V 0 [ ] (eigenvalue V 0 =V 1 +V 2 ), the temperature measured by the temperature detector 12 installed at the lower part 1a of the hot water storage tank before the operation of the circulation pump 16 is t [°C] , the measured temperature after the operation of the circulation pump 16 is T 2 [°C], so the residual water heat value K 2 [Kcal] can be calculated as follows.
K2=V0×(T2−t) 〔Kcal〕
なお、上記実施例では、貯湯タンク1内を撹拌
する手段として循環ポンプ16を使用した場合を
例にしたが、他の撹拌手段を用いてもよいことは
勿論である。 K 2 =V 0 ×(T 2 −t) [Kcal] In the above embodiment, the circulation pump 16 is used as a means for stirring the inside of the hot water storage tank 1, but other stirring means may be used. Of course, it is possible.
以上のようにこの発明によれば、貯湯タンクに
貯える使用湯量を定常的なものと暫定的なものと
に適宜選択できる湯量設定を備えているので、使
用湯量を日々あるいは季節の変化等に対応して自
由に設定でき、毎日の残湯量を少なくできる。ま
た、発熱体には深夜電力通電時間帯の後半部分を
主体に通電されるので、前半に負荷が集中する従
来の欠点を解消することができ、送電効率を向上
できるとともに、沸上げ後の放熱ロスも減少し
て、全体的に維持費が安くなる。さらに、残湯熱
量は、連続的な量で検出できるため、検出精度が
高く、発熱体への所要通電時間の算出が一段と正
確性を増すという効果を有する。 As described above, according to the present invention, there is a hot water amount setting that allows the amount of hot water used to be stored in the hot water storage tank to be appropriately selected between a constant amount and a temporary amount, so that the amount of hot water used can be adjusted according to daily or seasonal changes. You can freely set the settings to reduce the amount of hot water left each day. In addition, since the heating element is energized mainly during the latter half of the late-night power supply period, it is possible to eliminate the conventional drawback of the load being concentrated in the first half, improving power transmission efficiency, and dissipating heat after boiling. Loss is also reduced, and overall maintenance costs are lower. Furthermore, since the residual hot water heat amount can be detected as a continuous amount, the detection accuracy is high, and the calculation of the required energization time to the heating element has the effect of further increasing accuracy.
第1図は貯湯式電気温水器の構成図、第2図は
従来の貯湯式電気温水器における主要電気回路
図、第3図はこの発明による通電制御ブロツク
図、第4図はこの発明における残湯熱量検出手段
の一例を示す貯湯式電気温水器の断面図、第5図
および第6図はその残湯熱量検出時の貯湯タンク
内部の温度分布図を示すものである。
1は貯湯タンク、2は発熱体、6は定常湯量設
定装置、7は暫定湯量設定装置、8は演算器A、
9は残湯熱量検出装置、10は演算器B、11は
タイマー装置、12は温度検出器、16は循環ポ
ンプ(撹拌装置)、17は連通管である。
Fig. 1 is a block diagram of a hot water storage type electric water heater, Fig. 2 is a main electric circuit diagram of a conventional hot water storage type electric water heater, Fig. 3 is an energization control block diagram according to the present invention, and Fig. 4 is the remaining part of the present invention. FIGS. 5 and 6, which are cross-sectional views of a hot water storage type electric water heater showing an example of the hot water heat amount detection means, show temperature distribution charts inside the hot water storage tank when detecting the residual hot water heat amount. 1 is a hot water storage tank, 2 is a heating element, 6 is a steady hot water amount setting device, 7 is a temporary hot water amount setting device, 8 is a calculator A,
Reference numeral 9 indicates a residual water heat amount detection device, 10 indicates a computing unit B, 11 indicates a timer device, 12 indicates a temperature detector, 16 indicates a circulation pump (stirring device), and 17 indicates a communication pipe.
Claims (1)
設定するための定常湯量設定手段と、同じく一回
限りの暫定的な使用湯量を予め設定するための暫
定湯量設定手段と、前記定常湯量設定手段又は暫
定湯量設定手段出設定された設定値から貯えてお
くべき湯量の熱量を算出する演算手段とAと、貯
湯タンク内を撹拌する撹拌装置の運転前と運転後
における貯湯タンク下部の温度変化を検出して残
湯熱量を検出する残湯熱量検出手段と、前記演算
手段Aと残湯熱量検出手段で検出した熱量の差か
ら発熱体への所要通電時間を算出する演算手段B
と、この演算手段Bで求めた所要通電時間が深夜
電力通電終了時刻に得られるよう発熱体への通電
開始時間を制御するタイマー装置とを備えた貯湯
式電気温水器の制御装置。1. A steady hot water amount setting means for presetting the constant amount of hot water used to be stored in the hot water storage tank, a provisional hot water amount setting means for presetting a temporary hot water amount for one-time use, and the steady hot water amount setting means or Temporary hot water amount setting means A calculating means for calculating the heat value of the amount of hot water to be stored from the set value set, and detecting temperature changes in the lower part of the hot water storage tank before and after operation of the stirring device that stirs the inside of the hot water storage tank. a residual water heat amount detection means for detecting the residual water heat amount, and a calculation means B for calculating the required energization time to the heating element from the difference in the heat amount detected by the calculation means A and the residual water heat amount detection means.
and a timer device for controlling the start time of energization to the heating element so that the required energization time determined by the calculation means B is obtained at the end time of the late-night power energization.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57012631A JPS58130949A (en) | 1982-01-29 | 1982-01-29 | Control device for hot-water reserving type electric water heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57012631A JPS58130949A (en) | 1982-01-29 | 1982-01-29 | Control device for hot-water reserving type electric water heater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58130949A JPS58130949A (en) | 1983-08-04 |
JPS6316665B2 true JPS6316665B2 (en) | 1988-04-11 |
Family
ID=11810720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57012631A Granted JPS58130949A (en) | 1982-01-29 | 1982-01-29 | Control device for hot-water reserving type electric water heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58130949A (en) |
-
1982
- 1982-01-29 JP JP57012631A patent/JPS58130949A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS58130949A (en) | 1983-08-04 |
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