JPS59225245A - Remaining hot-water quantity detecting device of hot-water supply device - Google Patents
Remaining hot-water quantity detecting device of hot-water supply deviceInfo
- Publication number
- JPS59225245A JPS59225245A JP58100423A JP10042383A JPS59225245A JP S59225245 A JPS59225245 A JP S59225245A JP 58100423 A JP58100423 A JP 58100423A JP 10042383 A JP10042383 A JP 10042383A JP S59225245 A JPS59225245 A JP S59225245A
- Authority
- JP
- Japan
- Prior art keywords
- remaining hot
- corrosion
- hot water
- water quantity
- water
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000005260 corrosion Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/246—Water level
- F24H15/248—Water level of water storage tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/395—Information to users, e.g. alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
Abstract
Description
【発明の詳細な説明】
この発明は５缶体内の水が温度的に変化（水から湯ある
いは湯から水というように）した場合、変化した比抵抗
に応じて流れる防食電流を防食電極を利用して測定して
残湯量がどのくらいあるのかを検出するようにした給湯
器の残湯量検出装置に関するものである。Detailed Description of the Invention This invention utilizes an anti-corrosion electrode to generate an anti-corrosion current that flows in accordance with the changed resistivity when the water inside the can changes in temperature (from water to hot water or from hot water to water). The present invention relates to a residual hot water amount detection device for a water heater, which measures the amount of hot water left in the water heater and detects the amount of hot water remaining.
従来、防食装置というと第１図に示すように、一般電源
（ｉｏｏ’ｖ）をトランス２によシミ圧降下させ、ダイ
オードブリッジ３及び平滑用コンデンサ４等からなる直
流電源装置の正極側を缶体１に電気絶縁されてと９つけ
られた不活性防食電極５に接続し、負極側を金属性の缶
体１に接続して電極５と缶体１間に適当な直流電圧を印
加し、防食電流を流して缶体１の腐食を防ぐことだけが
目的であった。また残湯量検出は。Conventionally, as shown in Fig. 1, a corrosion protection device is used to reduce the pressure of a general power source (ioo'v) through a transformer 2, and connect the positive terminal side of a DC power supply device consisting of a diode bridge 3, a smoothing capacitor 4, etc. Connect it to an inert anti-corrosion electrode 5 that is electrically insulated and attached to the body 1, connect the negative electrode side to the metal can body 1, and apply an appropriate DC voltage between the electrode 5 and the can body 1, The sole purpose was to prevent corrosion of the can body 1 by passing an anti-corrosion current. Also, the amount of remaining hot water can be detected.
第２図に示すように複数個の正特性サーミスタ６を缶体
１外壁に取シつけ、該サーミスタ取付は位置での温度変
化を電圧レベル判定手段Ｔ。As shown in FIG. 2, a plurality of positive characteristic thermistors 6 are attached to the outer wall of the can body 1, and the thermistors are attached to a voltage level determining means T for detecting temperature changes at different positions.
残湯量判定手段８９表示手段９によって表示に結びつけ
るという方法であった。このような方法では、腐食を目
的とした防食回路、残湯量の検出を目的とした検出回路
というように二重の回路構成になシネ経済である。また
前記正特性サーミスタ６の個々の特性の差、および缶体
１外壁への取りつけ方法によっては表示が不安定になり
、さらには缶体１外壁を通しての検出のため正確な残湯
量が検知できない等の不具合を有していた。The method was to link the remaining hot water amount determination means 89 to the display by the display means 9. This method is economical because it has a dual circuit configuration, including an anticorrosion circuit for the purpose of corrosion and a detection circuit for the purpose of detecting the amount of remaining hot metal. In addition, the display may become unstable depending on the differences in the characteristics of the positive temperature coefficient thermistor 6 and how it is attached to the outer wall of the can body 1, and furthermore, the accurate amount of remaining hot water may not be detected because it is detected through the outer wall of the can body 1. It had some problems.
この発明は、上記のような不具合を除去するためになさ
れたものであ９９缶体１内の水が温度的に変化した場合
、変化した比抵抗に応じて変化する防食電流を測定する
手段によシ得られた値に応じて残湯量がどのくらいある
のかを自動的に判定させ、正確な残湯量を検出できるよ
うにした給湯器の残湯量検出装置を提供するものである
。This invention was made in order to eliminate the above-mentioned problems.99 When the temperature of the water in the can body 1 changes, the present invention provides a means for measuring an anti-corrosion current that changes according to the changed resistivity. To provide a remaining hot water amount detecting device for a water heater that can automatically determine the amount of remaining hot water according to the obtained value and accurately detect the remaining hot water amount.
以下、この発明による残湯量検出装置について説明する
。Hereinafter, the remaining hot water amount detection device according to the present invention will be explained.
第３図はこの発明による残湯量検出装置の一実施例を示
すもので、第１図で説明したとうシ、１は金属製の缶体
、５は缶体１に電気絶縁されて取シつけられた不活性電
極、２は一般電源（ｉｏｏｖ）を電圧降下させるトラン
ス、３は直流にかえるダイオードブリッジ、４は平滑用
コンデンサである。１０は防食電流を防食回路の０点よ
シミ原信号ｒとしてうけ、ム／Ｄ変換させる入力回路、
１１は入力回路１０からの出力に基づき残湯量を判定さ
せるマイクロコンピュータ−であシ、ＣＰＵ１２．メモ
リー１３．出力回路１４を有している。１５，１６，１
７゜１８は発光ダイオードで、前記マイクロコンピュー
タ−１１の出力回路１４に抵抗１９，２０．２１．２２
を介してそれぞれ接続されている次に上記実施例の動作
を第３図を参照しながら説明する。FIG. 3 shows an embodiment of the remaining hot water amount detecting device according to the present invention, in which the container explained in FIG. 2 is a transformer that reduces the voltage of the general power supply (IOOV), 3 is a diode bridge that converts the voltage to DC, and 4 is a smoothing capacitor. 10 is an input circuit that receives the anti-corrosion current from the zero point of the anti-corrosion circuit as the original stain signal r, and performs Mu/D conversion;
11 is a microcomputer that determines the amount of remaining hot water based on the output from the input circuit 10, and a CPU 12. Memory 13. It has an output circuit 14. 15, 16, 1
7゜18 is a light emitting diode, and resistors 19, 20, 21, 22 are connected to the output circuit 14 of the microcomputer 11.
Next, the operation of the above embodiment will be explained with reference to FIG. 3.
まず、電源を投入すると２缶体１内の水の温度変化に応
じた防食電流が流れる。この防食電流が流れると、防食
回路の０点よ）分岐させた電流信号工′が入力回路１０
に入力される。入力された電流信号Ｉ′は、ム／Ｄ変換
器（図示せ力全通してム／Ｄ変換され、マイクロコンピ
ュータ−１１内のＣＰＵ１２へ防食電流値として出力さ
れる。ＣＰＵ１２は入力された防食電流値を基に、あら
かじめ残湯量と防食電流値との相関関係が記憶されてい
るメモリー１３へ、どのくらいの残湯量があることにな
るのか問いただし、記憶されている値と比較する。比較
された内容が一致したら、ＣＰＵ１２は出力回路１４に
接続された発光ダイオード１５．１６．１７．１８ｆｔ
残湯量に応じて２コあるいは３コと順次ＯＮさせる。ま
た比較された内容が一致しない場合は、前記と逆に、残
湯量に応じて１コあるいは２コと順次ＯＦＦさせる。こ
れによシ１コＯＮのとき残湯量５０４！、２コＯＮのと
き＋０Ｏｆｉ、３コＯＮのとき１５０２というように発
行ダイオード１５．１６．１７．１８のＯＮの数によっ
て残湯量がわかる。一般的に防食電流は第４図に示すよ
うに水のときは比抵抗が太きいため少なく流れ、お湯に
なれば比抵抗が小さくなるため多く流れるという特徴を
有しているので、この相関関係をあらかじめメモリー１
３で記憶させておけばよいものである。First, when the power is turned on, an anticorrosion current flows according to the temperature change of the water in the two can bodies 1. When this anti-corrosion current flows, the current signal wire branched from the zero point of the anti-corrosion circuit is connected to the input circuit 10.
is input. The input current signal I' is subjected to Mu/D conversion through a Mu/D converter (not shown), and output as an anti-corrosion current value to the CPU 12 in the microcomputer 11. Based on the value, the memory 13, which stores the correlation between the amount of remaining hot water and the anti-corrosion current value, is asked how much remaining hot water is left, and compared with the stored value.Compared contents If they match, the CPU 12 outputs the light emitting diode 15.16.17.18ft connected to the output circuit 14.
Depending on the amount of hot water remaining, turn on 2 or 3 units in sequence. If the compared contents do not match, contrary to the above, the units are turned off one after another or two depending on the amount of remaining hot water. With this, the remaining amount of hot water when 1 water is ON is 504! The amount of remaining hot water can be determined by the number of ONs of the issuing diodes 15, 16, 17, and 18, such as +0Ofi when 2 pcs are ON, and 1502 when 3 pcs are ON. In general, as shown in Figure 4, the anticorrosion current has the characteristic that less current flows in water because the resistivity is large, and more flows in hot water because the resistivity becomes smaller, so this correlation exists. Memory 1 in advance
It is sufficient to memorize it in 3.
以上のようにこの発明によれば９缶体内の水に触れてい
る防食電極を利用して残湯量の検出を行なうため、正確
な残湯量が検出でき、かつサーミスタなどの部品の節約
、取付時間、費用の節約が期待できる。さらには、防食
電極の価値観も向上するものである。As described above, according to the present invention, since the amount of remaining hot water is detected using the anti-corrosion electrode that is in contact with the water inside the can, it is possible to accurately detect the amount of remaining hot water, and saves parts such as thermistors and installation time. , cost savings can be expected. Furthermore, the value of the anti-corrosion electrode will also be improved.
第１図は従来の防食装置を示す構成図、第２図は従来の
残湯量検出装置を示すブロック図。
第３図はこの発明による給湯器の残湯量検出装置の一実
施例を示す構成図である。第４図は防食電流と残湯量の
相関関係を示すグラフである図中、１は缶体、５は防食
電極、１０は入力回路、１１はマイクロコンピュータ−
２１２はＣＰＵ 、１３はメモリー、１４は出力回路、
１５．１．６，１７，１８は発光ダイオード、１９．２
０．２１．２２は抵抗である。
なお９図中同一符号は同−又は相当部分を示す。
代理人 大 岩 増 雄（外２名）
Ａ′１凶
牙２図
第３図 １
第４図
Ｔ嘔賢食ツＰ−ン丸（乙） →FIG. 1 is a block diagram showing a conventional corrosion protection device, and FIG. 2 is a block diagram showing a conventional remaining hot water amount detection device. FIG. 3 is a configuration diagram showing an embodiment of a remaining hot water amount detection device for a water heater according to the present invention. Figure 4 is a graph showing the correlation between the corrosion protection current and the amount of remaining hot water. In the figure, 1 is the can body, 5 is the corrosion protection electrode, 10 is the input circuit, and 11 is the microcomputer.
212 is a CPU, 13 is a memory, 14 is an output circuit,
15.1.6, 17, 18 are light emitting diodes, 19.2
0.21.22 is the resistance. Note that the same reference numerals in Figure 9 indicate the same or equivalent parts. Agent Masuo Oiwa (2 others) A'1 Kyoka 2 Figure 3 1 Figure 4 T Kokenshoku Tsunmaru (Otsu) →
Claims (1)
の適所に装置された防食電極と、この防食電極と前記缶
体間に電圧を付与する電源と、前記缶体内の液体の比抵
抗に応じて流れる防食電流を防食電極を利用して測定す
る防食電流ｉｌｌ定手段と、この防食電流測定手段で測
定した防食電流の値に基づき残湯量を判定する残湯量判
定手段と、この残湯量判定手段によって判定された出力
に基づき残湯量の表示を行なう残湯量表示手段とを備え
た給湯器の残湯量検出装置。 （２）防食電流測定手段、残湯量判定手段がマイクロコ
ンピュータ−で実現されている特許請求の第（１）項記
載の残湯量検出装置。[Scope of Claims] +11 A can body made of gold or metal that contains a liquid, a corrosion-protective electrode installed at a proper position on the can body, a power supply that applies a voltage between the corrosion-protective electrode and the can body, An anti-corrosion current ill determination means for measuring an anti-corrosion current flowing in accordance with the specific resistance of the liquid inside the can using an anti-corrosion electrode, and an amount of remaining hot water for determining the amount of remaining hot water based on the value of the anti-corrosion current measured by the anti-corrosion current measuring means. A remaining hot water amount detection device for a water heater, comprising a determining means and a remaining hot water amount displaying means for displaying the remaining hot water amount based on the output determined by the remaining hot water amount determining means. (2) The remaining hot water amount detecting device according to claim (1), wherein the anticorrosion current measuring means and the remaining hot water amount determining means are realized by a microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58100423A JPS59225245A (en) | 1983-06-06 | 1983-06-06 | Remaining hot-water quantity detecting device of hot-water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58100423A JPS59225245A (en) | 1983-06-06 | 1983-06-06 | Remaining hot-water quantity detecting device of hot-water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59225245A true JPS59225245A (en) | 1984-12-18 |
Family
ID=14273559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58100423A Pending JPS59225245A (en) | 1983-06-06 | 1983-06-06 | Remaining hot-water quantity detecting device of hot-water supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59225245A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008013943A1 (en) | 2008-03-12 | 2009-09-17 | Stiebel Eltron Gmbh & Co. Kg | Hot water tank, has anode isolated to enamelled container, where change of anode current is determined based on comparison of anode current with absolute upper threshold value, absolute lower threshold value and/or relative threshold value |
-
1983
- 1983-06-06 JP JP58100423A patent/JPS59225245A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008013943A1 (en) | 2008-03-12 | 2009-09-17 | Stiebel Eltron Gmbh & Co. Kg | Hot water tank, has anode isolated to enamelled container, where change of anode current is determined based on comparison of anode current with absolute upper threshold value, absolute lower threshold value and/or relative threshold value |
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