CN103743114A - Water temperature automatic control circuit for temperature constant water heater - Google Patents
Water temperature automatic control circuit for temperature constant water heater Download PDFInfo
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- CN103743114A CN103743114A CN201310735023.2A CN201310735023A CN103743114A CN 103743114 A CN103743114 A CN 103743114A CN 201310735023 A CN201310735023 A CN 201310735023A CN 103743114 A CN103743114 A CN 103743114A
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Abstract
The invention discloses a water temperature automatic control circuit for a temperature constant water heater. The water temperature automatic control circuit for the temperature constant water heater comprises an electric heater power supply circuit, a voltage transformation rectifying voltage stabilizing circuit, a display circuit, a mini-type electric water valve circuit, a trigger circuit , a microcomputer chip and a control signal transmission circuit. According to the water temperature automatic control circuit for the temperature constant water heater, the microcomputer chip control technology is adopted, the output power can be adjusted at any time according to dynamic data of the in-out water temperature and the setting temperature, and the water volume is adjusted through a mini-type water valve motor, so that the effect of enabling the effluent water temperature to be constant at any time is achieved and even in winter, when the water volume is large and the water temperature is low, the water heater can automatically adjust the water volume to achieve constant temperature and achieve the effect of being good in utilization comfort of bath and sanitary water.
Description
Technical field
The water temperature automatic control circuit that the present invention relates to a kind of Thermostatic water heaters, belongs to daily electrical home appliance technical field.
Background technology
Along with the raising of modern life quality, people require more and more higher to the comfortableness of bathing health hot water.Particularly, for Modern Family's bathing health hot water, people wish instant-heating, after setting water temperature, without too much manual adjustments, also without pre-hot standby, can obtain the comfortable hot water of constant temperature endlessly, can meet continuous many people bathing.Want to obtain fast the hot water that constant temperature is comfortable, key is the fine adjustment of electric water heater water exit temperature, according to dynamic datas such as voltage, inflow, inflow temperature, leaving water temperatures, adopts advanced control technology, reach the effect of effluent temperature constancy, make bath comfort better.
At present, the water temperature regulation technology of electric heater mainly contains four kinds, and the one, hot and cold water mixes manual adjustments, the 2nd, gear manual adjustments, the 3rd, stepless automatic temperature-control technology, the 4th, dynamic thermostatic technology.Hot and cold water mixes manual adjustments and is mainly used in storage-type electric water heater, relies on the manual adjustments of water mixing valve to obtain applicable water temperature completely, and this adjusting obtains water temperature control inaccuracy, needs repeatedly repeatedly to regulate Mixed water valve.Gear manual adjustments is to reach by gear regulating power the object that regulates temperature, and simple product only has third gear to regulate, and slightly to seven to nine grades of adjustings are established in better meeting.Above 2 kinds of control modes are by manual adjustments water mixing valve or gear regulating power, to realize the adjusting of water temperature, and therefore temperature control inaccuracy, both wasted water, and waste electricity, not energy-conservation again.When this external voltage, hydraulic pressure, inflow temperature fluctuation, still can be sometimes hot and sometimes cold, comfort level is poor.Stepless automatic temperature-control technology adopts micro computer, by controllable silicon frequency-variable controller, the power output of water heater is subdivided into countless small gears, water temperature to water heater is accurately controlled, generally be divided into 20 ~ 30 grades, 30 grades more moderate, every grade of once left and right of adjusting, can satisfy the demands preferably, unlikely too loaded down with trivial details again.This control belongs to static cost control temperature category, when voltage, hydraulic pressure, inflow temperature fluctuation, still can be sometimes hot and sometimes cold, and comfort level is limited.Dynamic thermostatic technology is according to the dynamic data of water inlet, leaving water temperature and design temperature, adopt micro-computer technology to control to adjust at any time the power output of electric heater, the effect that reaches effluent temperature constancy when voltage, hydraulic pressure, inflow temperature fluctuation, bath comfort degree is better.But when the large and water temperature of the water yield in winter is low, when the power maximum of water heater and water temperature do not reach design temperature, water heater voluntarily regulating pondage reaches constant temperature.
In order further to improve the accuracy that leaving water temperature regulates, realize and dynamically control temperature, whenever reach effluent temperature constancy, make the better water heater of bath comfort degree.Therefore, in society in the urgent need to a kind of Thermostatic water heaters of effluent temperature constancy.For this reason, need to there is a kind of water temperature automatic control circuit that adapts to this Thermostatic water heaters.
Summary of the invention
The object of the present invention is to provide a kind of water temperature automatic control circuit of Thermostatic water heaters, this circuit adopts microcomputer chip control technology, except according to the dynamic data of turnover water temperature, design temperature at any time regulation output power, whenever also by miniature water valve motor regulating pondage, reach the effect of effluent temperature constancy.Even when the large and water temperature of the water yield in winter is low, water heater also voluntarily regulating pondage reach constant temperature, also can reach the extraordinary effect of bathing sanitary water comfort level.
Technical scheme of the present invention is: a kind of water temperature automatic control circuit of Thermostatic water heaters, this water temperature automatic control circuit, comprises electric heater power supply circuits, transformation regulator rectifier circuit, display circuit, miniature electric water valve circuit, circuits for triggering and microcomputer chip and control signal transmission circuit; Described electric heater power supply circuits, are comprised of earth leakage circuit-breaker, controllable silicon, by circuits for triggering, change the silicon controlled angle of flow, and regulation output electrical power is at any time controlled the work of electric heater; This circuit adopts the two control programs of opening of double break, and when electric heater starts and closes, bipolar (live wire, the zero line) of power supply turn-offs simultaneously or open, and creepage protection function is also set, and guarantees Electrical Safety.
Further, described transformation regulator rectifier circuit is comprised of transformer, rectification module and DC voltage-stabilizing module, required working dc power is provided to display circuit, miniature electric water valve circuit, circuits for triggering, water yield switch, sensor and microcomputer chip.
Further, described display circuit is comprised of display screen, T1, T2 and drive circuit, for showing duty, turnover water temperature, design temperature and the failure code of electric heater.
Whenever further, described miniature electric water valve circuit, is comprised of miniature electric water valve and drive circuit, and the control signal of sending according to microcomputer chip makes miniature electric water valve implement the adjusting of inflow, reaches the effect of effluent temperature constancy.
Further, described circuits for triggering are comprised of photoelectrical coupler, diac, triode T7, resistance R 3 and capacitor C 4, the control signal of sending according to microcomputer chip, makes controllable silicon regulation output electrical power at any time in main circuit, controls the work of electric heater.
Further, described microcomputer chip and control signal transmission circuit are that microcomputer chip detects after the signal of telecommunication of water flow switch, button, various sensors automatically, through programmed process, to each executing agency, send corresponding work order.
Further, the control signal of described input microcomputer chip, comprises water flow switch signal, on/off key, intensification button, cooling button operation signal, inflow temperature sensor signal, leaving water temperature sensor signal and prevent dry combustion method sensor signal.
Beneficial effect of the present invention is:
(1). this control circuit adopts the two control programs of opening of double break, and when electric heater starts and closes, bipolar (live wire, the zero line) of power supply turn-offs simultaneously or open, and creepage protection function is also set, and guarantees Electrical Safety.
(2). this control circuit only arranges machine open/close, intensification and three buttons of cooling, simple operation, only need set the leaving water temperature needing, and starts shooting and goes out hot water in latter about 3 seconds, about 8 seconds, can obtain constant-temperature hot water (depending on different electrical power), realize the water requirement of instant-heating.
(3). when changing, current or voltage make electromotive power output that corresponding variation occurs, thereby temperature is remained unchanged, when current or voltage change excessive, when leaving water temperature has the deviation of 1 ~ 2 ℃, this controller can return to set water temperature about 3 seconds, and it is quick, accurate that water temperature regulates.
(4). this control circuit arranges water flow switch, when electric heater is anhydrous, forbids start; Or while cutting off the water suddenly in use procedure, electric heater hard stop, to guarantee safety.
(5). this control circuit has overheat protection function, and when leaving water temperature reaches 55 ℃ or 60 ℃, microcomputer chip stops heating automatically, will recover to reheat after leaving water temperature is reduced to design temperature.
(6). this control circuit has anti-dry defencive function, when calandria temperature reaches 95 ℃ or when above, anti-dry heating temperature controller automatically disconnects and cutting off the electricity supply, stops heating, after calandria temperature is reduced to rated temperature, will automatically or need manually recovery.
(7). this control circuit also has the maltilevel security protections such as automatic detection, automatic fault warning function (overtemperature shows that E1, electric leakage show that E2, sensor fault show that E3, dry combustion method show E4).
Accompanying drawing explanation
Accompanying drawing is used for further explanation of the present invention and explanation.But do not limit the present invention.
Fig. 1 is the theory structure block diagram of the water temperature automatic control circuit of a kind of Thermostatic water heaters of the present invention.
Fig. 2 is the circuit theory diagrams of the water temperature automatic control circuit of a kind of Thermostatic water heaters of the present invention.
The specific embodiment
Below with reference to theory structure block diagram and the circuit theory diagrams course of work of the water temperature automatic control circuit of Thermostatic water heaters of the present invention, elaborate the present invention.Fig. 1 is the theory structure block diagram of the water temperature automatic control circuit of a kind of Thermostatic water heaters of the present invention.Fig. 2 is circuit theory diagrams.From accompanying drawing, can find out,
Technical scheme of the present invention is: a kind of water temperature automatic control circuit of Thermostatic water heaters, this water temperature automatic control circuit, comprises electric heater power supply circuits, transformation regulator rectifier circuit, display circuit, miniature electric water valve circuit, circuits for triggering and microcomputer chip and control signal transmission circuit; Described electric heater power supply circuits, are comprised of earth leakage circuit-breaker, controllable silicon, by circuits for triggering, change the silicon controlled angle of flow, and regulation output electrical power is at any time controlled the work of electric heater; This circuit adopts the two control programs of opening of double break, and when electric heater starts and closes, bipolar (live wire, the zero line) of power supply turn-offs simultaneously or open, and creepage protection function is also set, and guarantees Electrical Safety.
Further, described transformation regulator rectifier circuit is comprised of transformer, rectification module and DC voltage-stabilizing module, required working dc power is provided to display circuit, miniature electric water valve circuit, circuits for triggering, water yield switch, sensor and microcomputer chip.
Further, described display circuit is comprised of display screen, T1, T2 and drive circuit, for showing duty, turnover water temperature, design temperature and the failure code of electric heater.
Whenever further, described miniature electric water valve circuit, is comprised of miniature electric water valve and drive circuit, and the control signal of sending according to microcomputer chip makes miniature electric water valve implement the adjusting of inflow, reaches the effect of effluent temperature constancy.
Further, described circuits for triggering are comprised of photoelectrical coupler, diac, triode T7, resistance R 3 and capacitor C 4, the control signal of sending according to microcomputer chip, makes controllable silicon regulation output electrical power at any time in main circuit, controls the work of electric heater.
Further, described microcomputer chip and control signal transmission circuit are that microcomputer chip detects after the signal of telecommunication of water flow switch, button, various sensors automatically, through programmed process, to each executing agency, send corresponding work order.
Further, the control signal of described input microcomputer chip, comprises water flow switch signal, on/off key, intensification button, cooling button operation signal, inflow temperature sensor signal, leaving water temperature sensor signal and prevent dry combustion method sensor signal.
The water temperature automatic control circuit control procedure of Thermostatic water heaters of the present invention is:
1. switch on power: closed earth leakage circuit-breaker, give electric heater main circuit and control circuit power supply, power supply indicator is lighted.Control circuit working power is provided by transformation regulator rectifier circuit, and when microcomputer chip switches on power, CPU requires chip internal each several part circuit state to complete initialization before bringing into operation.
2. operation push-button: press on/off key, display screen is lighted, shows when advancing water, leaving water temperature and original leaving water temperature of setting.If the design temperature before changing, can regulate by intensification button or cooling button, until mix up design temperature, for opening electric heater, prepare.
3. open electric heater: open water supply valve, gondola water faucet has water ejection, be contained in the water flow switch action of water inlet, starting-up signal is passed to microcomputer chip, microcomputer chip, through program computing, sends start-up command, triode T7 conducting, make photoelectrical coupler work, for connecting circuits for triggering, equip.Now, heating work indicator lamp is lighted, and miniature electric water valve is in full-gear.
4. regulating power: according to the comparison of inflow temperature, leaving water temperature and design temperature, microcomputer chip, through program computing, is connected circuits for triggering power supply, change the silicon controlled angle of flow simultaneously, just started to increase the angle of flow, power output increases, and leaving water temperature increases; When leaving water temperature approaches design temperature, reduce the angle of flow, power output is less, makes leaving water temperature be tending towards constant.As long as when leaving water temperature and design temperature have the deviation of 1 ~ 2 ℃, automatically regulate the silicon controlled angle of flow by microcomputer chip, accurately control power output, can about 3 seconds, return to set water temperature, it is quick, accurate that water temperature regulates.
5. regulating pondage: while just starting heating work, miniature electric water valve is always in full-gear, but it is too low to work as inflow temperature, or when power output has reached maximum, microcomputer chip, through program computing, sends the instruction that turns down the water yield to miniature electric water valve, control the size of its water yield, with the high leaving water temperature of Quick, make leaving water temperature Quick-return to design temperature, and be tending towards constant.
6. the anhydrous or protection of cutting off the water: when the anhydrous outflow of electric heater, water flow switch can't detect water yield signal, microcomputer chip sends forbids start-up command.While cutting off the water suddenly in electric heater use procedure, water flow switch detects that water yield signal stops, and microcomputer chip sends halt instruction, and electric heater hard stop, to guarantee safety.
7. overtemperature prote: in electric heater use procedure, reach 55 ℃ or when above, microcomputer chip sends instruction when leaving water temperature sensor detects leaving water temperature, automatically stop heating, will recover to reheat after leaving water temperature is reduced to design temperature.
8. anti-dry protection: in electric heater use procedure; when detecting calandria temperature, dry-burning preventing sensor reaches 90 ℃ or when above; anti-dry heating temperature controller automatically disconnects and cutting off the electricity supply, and stops heating, will automatically or need manually to recover after calandria temperature is reduced to rated temperature.
9. detection automatically, automatic fault are reported to the police: in electric heater use procedure; microcomputer chip has the maltilevel security protections such as automatic detection, automatic fault warning function (overtemperature shows that E1, electric leakage show that E2, sensor fault show that E3, dry combustion method show E4); if there is corresponding fault; to automatically stop heating, and show the corresponding failure code of screen display.
10. close water and close electricity: after washing finishes, inlet valve is closed, heating work indicator lamp extinguishes, then clicks on/off key, and display screen also extinguishes, and electric heater quits work completely.Finally close earth leakage circuit-breaker, power supply indicator extinguishes, and finally makes electric heater power-off.
From above explanation, can find out, technical solution problem of the present invention, to adopt microcomputer chip control, according to the dynamic data of inflow temperature sensor, leaving water temperature sensor and design temperature, by circuits for triggering, make controllable silicon regulating power at any time, by miniature electric water valve, regulate inflow, reach still constant effect of when voltage, hydraulic pressure, inflow temperature fluctuation leaving water temperature.
It should be noted that, technical conceive of the present invention, to those skilled in the art; can be under the guidance of this design, derive multiple same or similar replacement schemes, still; every technical scheme under this design, all within the protection domain of the claims in the present invention book.
Claims (7)
1. the water temperature automatic control circuit of a Thermostatic water heaters, it is characterized in that, this water temperature automatic control circuit, comprises electric heater power supply circuits, transformation regulator rectifier circuit, display circuit, miniature electric water valve circuit, circuits for triggering and microcomputer chip and control signal transmission circuit; Described electric heater power supply circuits, are comprised of earth leakage circuit-breaker, controllable silicon, by circuits for triggering, change the silicon controlled angle of flow, and regulation output electrical power is at any time controlled the work of electric heater; This circuit adopts the two control programs of opening of double break, and when electric heater starts and closes, bipolar (live wire, the zero line) of power supply turn-offs simultaneously or open, and creepage protection function is also set, and guarantees Electrical Safety.
2. according to the water temperature automatic control circuit of a kind of Thermostatic water heaters claimed in claim 1, it is characterized in that, described transformation regulator rectifier circuit is comprised of transformer, rectification module and DC voltage-stabilizing module, required working dc power is provided to display circuit, miniature electric water valve circuit, circuits for triggering, water yield switch, sensor and microcomputer chip.
3. according to the water temperature automatic control circuit of a kind of Thermostatic water heaters claimed in claim 1, it is characterized in that, described. display circuit is comprised of display screen, T1, T2 and drive circuit, for showing duty, turnover water temperature, design temperature and the failure code of electric heater.
4. according to the water temperature automatic control circuit of a kind of Thermostatic water heaters claimed in claim 1, it is characterized in that, described miniature electric water valve circuit, by miniature electric water valve and drive circuit, formed, the control signal of sending according to microcomputer chip, whenever make miniature electric water valve implement the adjusting of inflow, reach the effect of effluent temperature constancy.
5. according to the water temperature automatic control circuit of a kind of Thermostatic water heaters claimed in claim 1, it is characterized in that, described circuits for triggering are comprised of photoelectrical coupler, diac, triode T7, resistance R 3 and capacitor C 4, the control signal of sending according to microcomputer chip, make controllable silicon regulation output electrical power at any time in main circuit, control the work of electric heater.
6. according to the water temperature automatic control circuit of a kind of Thermostatic water heaters claimed in claim 1, it is characterized in that, described microcomputer chip and control signal transmission circuit are that microcomputer chip detects after the signal of telecommunication of water flow switch, button, various sensors automatically, through programmed process, to each executing agency, send corresponding work order.
7. according to the water temperature automatic control circuit of a kind of Thermostatic water heaters claimed in claim 6, it is characterized in that, the control signal of described input microcomputer chip, comprise water flow switch signal, on/off key, intensification button, cooling button operation signal, inflow temperature sensor signal, leaving water temperature sensor signal and prevent dry combustion method sensor signal.
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| CN201310735023.2A CN103743114A (en) | 2013-12-27 | 2013-12-27 | Water temperature automatic control circuit for temperature constant water heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994583A (en) * | 2014-06-17 | 2014-08-20 | 山东润泰智能电气有限公司 | Quick-heating type electric water heater and heating method thereof |
| CN104197513A (en) * | 2014-09-12 | 2014-12-10 | 中建五局蚌埠建筑工程有限公司 | Water supply system of air energy water heater |
| CN106152478A (en) * | 2016-08-28 | 2016-11-23 | 佛山市云米电器科技有限公司 | The safety water heater of water outlet induction switching-off |
| CN106369835A (en) * | 2016-09-22 | 2017-02-01 | 中山市爱马仕洁具有限公司 | Instant-heating type constant-temperature water outlet device and control method and system thereof |
| CN106403307A (en) * | 2016-11-28 | 2017-02-15 | 博罗县堡斯莱电器有限公司 | Instant electric water heater and control method thereof |
| CN106766218A (en) * | 2016-11-28 | 2017-05-31 | 博罗县堡斯莱电器有限公司 | Instant electric water heater and its control method of automatic shutdown |
| CN107560189A (en) * | 2017-10-24 | 2018-01-09 | 苏州经贸职业技术学院 | A kind of gas heater device and intelligent constant-temperaturecontrol control |
| CN108814493A (en) * | 2018-06-06 | 2018-11-16 | 九阳股份有限公司 | A kind of dish-washing machine of anti-dry |
| CN108826700A (en) * | 2018-06-14 | 2018-11-16 | 芜湖美的厨卫电器制造有限公司 | For the control method of gas heater safeguard protection, device and gas heater |
| CN112178944A (en) * | 2020-09-28 | 2021-01-05 | 深圳市朗科智能电气股份有限公司 | Extremely-speed constant-temperature regulation and control method of quick water heater |
| CN114060892A (en) * | 2021-11-29 | 2022-02-18 | 奥普家居股份有限公司 | Constant-temperature bathroom heater, control method thereof and storage medium |
| CN115060007A (en) * | 2022-04-28 | 2022-09-16 | 深圳市合信达控制系统有限公司 | Wall-mounted boiler and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103994583A (en) * | 2014-06-17 | 2014-08-20 | 山东润泰智能电气有限公司 | Quick-heating type electric water heater and heating method thereof |
| CN104197513A (en) * | 2014-09-12 | 2014-12-10 | 中建五局蚌埠建筑工程有限公司 | Water supply system of air energy water heater |
| CN104197513B (en) * | 2014-09-12 | 2017-03-01 | 中建五局蚌埠建筑工程有限公司 | Water supply system of air energy water heater |
| CN106152478A (en) * | 2016-08-28 | 2016-11-23 | 佛山市云米电器科技有限公司 | The safety water heater of water outlet induction switching-off |
| CN106369835A (en) * | 2016-09-22 | 2017-02-01 | 中山市爱马仕洁具有限公司 | Instant-heating type constant-temperature water outlet device and control method and system thereof |
| CN106403307A (en) * | 2016-11-28 | 2017-02-15 | 博罗县堡斯莱电器有限公司 | Instant electric water heater and control method thereof |
| CN106766218A (en) * | 2016-11-28 | 2017-05-31 | 博罗县堡斯莱电器有限公司 | Instant electric water heater and its control method of automatic shutdown |
| CN107560189A (en) * | 2017-10-24 | 2018-01-09 | 苏州经贸职业技术学院 | A kind of gas heater device and intelligent constant-temperaturecontrol control |
| CN108814493A (en) * | 2018-06-06 | 2018-11-16 | 九阳股份有限公司 | A kind of dish-washing machine of anti-dry |
| CN108826700A (en) * | 2018-06-14 | 2018-11-16 | 芜湖美的厨卫电器制造有限公司 | For the control method of gas heater safeguard protection, device and gas heater |
| CN108826700B (en) * | 2018-06-14 | 2021-12-28 | 芜湖美的厨卫电器制造有限公司 | Control method and device for safety protection of gas water heater and gas water heater |
| CN112178944A (en) * | 2020-09-28 | 2021-01-05 | 深圳市朗科智能电气股份有限公司 | Extremely-speed constant-temperature regulation and control method of quick water heater |
| CN114060892A (en) * | 2021-11-29 | 2022-02-18 | 奥普家居股份有限公司 | Constant-temperature bathroom heater, control method thereof and storage medium |
| CN114060892B (en) * | 2021-11-29 | 2023-05-16 | 奥普家居股份有限公司 | Constant-temperature bathroom heater, control method thereof and storage medium |
| CN115060007A (en) * | 2022-04-28 | 2022-09-16 | 深圳市合信达控制系统有限公司 | Wall-mounted boiler and control method thereof |
| CN115060007B (en) * | 2022-04-28 | 2023-11-24 | 深圳市合信达控制系统有限公司 | Control method of wall-mounted furnace and wall-mounted furnace |
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Application publication date: 20140423 |