CN201489335U - Intelligent control circuit system of water dispenser - Google Patents
Intelligent control circuit system of water dispenser Download PDFInfo
- Publication number
- CN201489335U CN201489335U CN2009201941346U CN200920194134U CN201489335U CN 201489335 U CN201489335 U CN 201489335U CN 2009201941346 U CN2009201941346 U CN 2009201941346U CN 200920194134 U CN200920194134 U CN 200920194134U CN 201489335 U CN201489335 U CN 201489335U
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Abstract
The utility model relates to the field of electronic automation control, in particular to a singlechip intelligent control circuit system of a water dispenser. The intelligent control circuit system of the water dispenser comprises a singlechip control circuit, a K-shaped temperature collecting circuit and a driving interface circuit, wherein the input end of the singlechip control circuit is connected to a time circuit, an A/D converting circuit, a keyboard circuit and a watch-dog circuit, the output end thereof is connected to an LCD display circuit, an indicator light, a sound generating circuit and the driving interface circuit of the water dispenser, and the input-output end thereof is connected to a communication circuit; the K-shaped temperature collection circuit is arranged inside the water receiver of the water dispenser, and output end thereof is connected to a simulated transmittal circuit and the A/D converting circuit in sequence; the output end of the driving interface circuit is connected to an inner container power supply and a double-connection water valve. The utility model adopts special double-connection water valve control, time control and temperature control for effectively controlling cold and hot combination of drinking water, the problem of mixed drinking water is avoided, energy waste is saved, and the temperature of the drinking water is controlled.
Description
Technical field
The utility model relates to automatic electronic control field, relates in particular to the single-chip microcomputer intelligence control circuit system that is used for water dispenser.
Background technology
Along with deepening continuously of reform and opening-up, the improving constantly of people's living standard, the source of the drinking-water that widely known water dispenser achievement enterprise, family is indispensable.The end, could not keep the balance of body water to the amount of drinking for each person every day in 2000 milliliters water.Become the popular focus of being concerned about as He Jiankang, energy-conserving drinking water.
How water dispenser enters from the well heater top without the cold water of heating at present, causes the mixed water that drinks boiling water and cold water easily.At aspects such as the solution of the water dispenser that receives much attention " secondary pollution " and energy consumptions.Can't obtain temporal control.The energy dissipation that non-stop run in 24 hours not only causes.The frequent heating of inner bag more causes poisonous incidents such as " thousand boiling water ".The temperature of potable water is indeterminate, by scald incident or the like problem.A lot of water dispenser enterprises are all doing various trials on the existing market, improve the trend of water dispenser quality consciously.And in the present water dispenser, its with simply single, the Control Software of intelligence control circuit control performance can not bring in constant renewal in upgrading along with customer demand, and temperature control precision deficiency, error is bigger.
The utility model content
Therefore, at the problems referred to above, the utility model proposes a kind of effectively cold and hot combination of control potable water of the control of peculiar duplex water valve, time control, temperature control of adopting, and and improve and improve the control temperature accuracy by improving A/D conversion and discharge circuit, and possess the communication function of software upgrading.
The technical solution of the utility model is:
The intelligence control circuit system of water dispenser comprises:
One single chip machine controlling circuit, its input is connected in time circuit, A/D change-over circuit, keyboard circuit and watchdog circuit, its output is connected in the driving interface circuit of LCD display circuit, pilot lamp, sound generating circuit and water dispenser, and its input and output are connected in communicating circuit;
One time circuit, its output is connected in described single chip machine controlling circuit;
One K type temperature collection circuit is arranged in the water dispenser water receiver, and its output is connected in discharge circuit;
One discharge circuit, its output are connected in described K type temperature collection circuit, and its output is connected in the A/D change-over circuit;
One A/D change-over circuit, its input is connected in described discharge circuit, and its output is connected in described single chip machine controlling circuit;
One keyboard circuit, its output is connected in described single chip machine controlling circuit;
One driving interface circuit, its input is connected in described single chip machine controlling circuit, and output is connected in the inner bag power supply and the duplex water valve of water dispenser;
One pilot lamp, its input is connected in described single chip machine controlling circuit;
One sound generating circuit, its input is connected in described single chip machine controlling circuit;
One watchdog circuit, its output is connected in described single chip machine controlling circuit;
One LCD display circuit, its input is connected in described single chip machine controlling circuit;
One communicating circuit, its input and output are connected in described single chip machine controlling circuit.
Further, described intelligence control circuit system also comprises a power circuit, and be electrically connected to each circuit unit, described power circuit is that the output terminal of transformer constitutes through the power rectifier voltage stabilizing chip that a full-bridge rectification unit of being made up of 4 diodes is connected with its output terminal, and the input end of described power rectifier voltage stabilizing chip and output terminal are all and be connected to 2 filter capacitors.
Further, described single chip machine controlling circuit is that 89C52 chip and connection crystal oscillating circuit thereon constitute, and described crystal oscillating circuit is that a crystal oscillator and two sides connect the electric capacity composition.
Further, described time circuit is to be made of time control chip DS1302, and its pin 5 (RST), 6 (I/O mouth), 7 (SCLK) pin are connected with the pin one 2,24,14 (I/O mouth) of single-chip microcomputer 89C52 chip (U1).
Further, described K type temperature collection circuit is a multichannel, and is connected in analog switching circuit and exports and be connected to described discharge circuit.
Further, described discharge circuit is to be made of instrument amplifier chip AD623.
Further, described pilot lamp is that light emitting diode and the series connection current-limiting resistance thereon that is connected in the 89C52 chip port constitutes.
Further, described sound generating circuit is to be made of 9561 sound generation chips and peripheral resistance and electric capacity, LM386 operational amplifier through the sound power amplifier drives the loudspeaker that connects thereon, and its drive end is that the port of 89C52 chip passes through to connect photoelectrical coupler control semiconductor switch pipe thereon.
Further, described watchdog circuit is that 5045 chips constitute with the RC oscillatory circuit that is connected thereon.
Further, described communicating circuit is the RS485 communicating circuit, is made of RS485 communication chip and the resistance that connects thereon, and input end also is connected with photoelectrical coupler and carries out Signal Spacing.
The utility model proposes a kind of effectively cold and hot combination of control potable water of peculiar duplex water valve control, time control, temperature control of adopting, avoided drinking the assurance of the problem of " mixed water ", the waste of having saved the energy, potable water temperature.Open or close the into professional technique of water and water outlet simultaneously.The serviceable life and the security of water courage have been improved greatly.Be a kind of health, energy-conservation, reasonable, the intelligence control circuit system of encircling intelligent computer micro-control water dispenser.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is power circuit principle figure of the present utility model;
Fig. 3 is a physical circuit schematic diagram of the present utility model.
Embodiment
Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.
Consult shown in Figure 1ly, the intelligence control circuit system embodiment of water dispenser of the present utility model comprises:
One single chip machine controlling circuit 1, its input is connected in time circuit 2, A/D change-over circuit 5, keyboard circuit 6 and watchdog circuit 12, its output is connected in the driving interface circuit 7 of LCD display circuit 13, pilot lamp 10, sound generating circuit 11 and water dispenser, and its input and output are connected in communicating circuit 14;
One time circuit 2, its output are connected in described single chip machine controlling circuit 1;
One K type temperature collection circuit 3 is arranged in the water dispenser water receiver, and its output is connected in discharge circuit 4;
One discharge circuit 4, its output are connected in described K type temperature collection circuit 3, and its output is connected in A/D change-over circuit 5;
One A/D change-over circuit 5, its input are connected in described discharge circuit 4, and its output is connected in described single chip machine controlling circuit 1;
One keyboard circuit 6, its output are connected in described single chip machine controlling circuit 1;
One driving interface circuit 7, its input are connected in described single chip machine controlling circuit 1, and output is connected in the inner bag power supply 8 and the duplex water valve 9 of water dispenser;
One pilot lamp 10, its input are connected in described single chip machine controlling circuit 1;
One sound generating circuit 11, its input are connected in described single chip machine controlling circuit 1;
One watchdog circuit 12, its output are connected in described single chip machine controlling circuit 1;
One LCD display circuit 13, its input are connected in described single chip machine controlling circuit 1;
One communicating circuit 14, its input and output are connected in described single chip machine controlling circuit 1.
Consult shown in Figure 2, described intelligence control circuit system also comprises a power circuit 15, and be electrically connected to above-mentioned each circuit unit, the output terminal that described power circuit 15 is transformers constitutes through power rectifier voltage stabilizing chip U9, the U10 that a full-bridge rectification unit of being made up of 4 diodes is connected with its output terminal, and the input end of described power rectifier voltage stabilizing chip U9, U10 and output terminal are all and be connected to 2 high and low frequency filter capacitors.Power rectifier voltage stabilizing chip U9 is that 7812 chips can be exported voltage stabilizing direct current+12V electric current, and power rectifier voltage stabilizing chip U10 7805 can export voltage stabilizing direct current+5V electric current.
Consult shown in Figure 3ly, described single chip machine controlling circuit 1 is that 89C52 chip U1 and the crystal oscillating circuit that connects thereon constitute, and described crystal oscillating circuit is that a crystal oscillator Y2 and two sides connect capacitor C 20, C21 forms.Described time circuit 2 is to be made of time control chip DS1302, and its pin 5 (RST), 6 (I/O mouth), 7 (SCLK) pin are connected with the pin one 2,24,14 (I/O mouth) of single-chip microcomputer 89C52 chip U1, and data transmit mutually.Be used for LCD and show the time, and the button control by keyboard circuit 6 directly is provided with and selects opening time, shut-in time and Monday to Sunday.
Described K type temperature collection circuit 3 is a multichannel, and is connected in analog switching circuit and exports and be connected to described discharge circuit 4.Can be used for the multi pass acquisition temperature channel, improve temperature detecting precision.Described discharge circuit 4 is to be made of instrument amplifier chip AD623.The electric current that chip AD623 produces is directly proportional with absolute temperature, and the temperature range of detection is-55---+150 degree, and it has extraordinary linear output performance, every increase by 1 degree of temperature, its electric current increases 1uA.
It is as shown in the table for the temperature of AD623 chip and the relation of electric current:
| Celsius temperature | The AD623 electric current | Voltage after conversion |
| 0 | 273.2uA | 2.732 |
| 10 | 283.2uA | 2.832V |
| 20 | 293.2uA | 2.932V |
| 25 | 298.2uA | 2.982V |
| 30 | 303.2uA | 3.032V |
| Celsius temperature | The AD623 electric current | Voltage after conversion |
| 40 | 313.2uA | 3.132V |
| 50 | 323.2uA | 3.230V |
| 60 | 273.2uA | 3.732V |
| 100 | 373.2uA | 3.732V |
Utilize AD623 and interface circuit that temperature transition is become aanalogvoltage, convert digital signal to, handle through single-chip microcomputer 89C52 chip U1 then via the MAX154 chip U2 of A/D change-over circuit 5.The value of gained is lower than the temperature reference value of setting, and then makes heater heats, otherwise turns off electric heater, makes temperature can remain on the reference value that sets.
Described pilot lamp 10 is that the LED 1, LED2 and series connection current-limiting resistance R5, the R6 thereon that are connected in 89C52 chip U1 port constitute.Described sound generating circuit 11 is to be made of 9561 sound generation chip U11 and peripheral resistance and electric capacity, LM386 operational amplifier U3 through sound power amplifier 9 drives the loudspeaker that connects thereon, and its drive end is that the port of 89C52 chip U1 passes through to connect photoelectrical coupler T4 control semiconductor switch pipe VT1 thereon.Described communicating circuit 14 is RS485 communicating circuits, is made of RS485 communication chip and the resistance R 30 that connects thereon, and input end also is connected with photoelectrical coupler and carries out Signal Spacing.Described watchdog circuit 13 is that 5045 chip U5 constitute with the RC vibration R5, the C22 circuit that are connected thereon.In the microcomputer system that constitutes by single-chip microcomputer; the interference of electromagnetic field because the work of single-chip microcomputer usually can be subjected to coming from the outside; cause the race of program to fly; and being absorbed in endless loop, the normal operation of program is interrupted, and can't be worked on by monolithic processor controlled system; can cause the dead state that is absorbed in of total system; unpredictable consequence takes place, so for the consideration that the single-chip microcomputer running status is monitored in real time, circuit has added watchdog circuit 5045 chip U5 single-chip microcomputer is monitored constantly.The application of watchdog circuit circuit 13 makes single-chip microcomputer realize continuous working under the unmanned state.The I/O pin of watchdog chip U5 and single-chip microcomputer U1 links to each other.It periodically sends into high level (or low level) to this I/O pin on this pin of house dog by programmed control, when in case single-chip microcomputer U1 breaks down, the program of writing house dog U5 pin just can not be performed, watchdog circuit 13 can not get the signal that single-chip microcomputer U1 sends here, just it with pin that single-chip microcomputer U1 reset pin links to each other on send a reset signal, single-chip microcomputer U1 is resetted, being program begins to carry out from the reference position of program storage, has so just realized automatically reseting of single-chip microcomputer.
Principle of work of the present utility model is: combination K type temperature probe is installed on the surface of water heater container.The situation of change of actual measurement drinking machine water temperature.The height of temperature directly induces than feeble signal by the thermometric line and is imported by 3 pin that instrument strengthens operational amplifier U13 (AD623), and the signal after the amplification is exported from 6 pin.Produce the big or small simulating signal that signal is a kind of continuous variation here.1 pin (IN4) conversion through the D/A converter module of the MAX154 of U2 chip.Simulating signal becomes digital signal---D0, D1, D2, D3; A series of digital signal transmits through the I/O of the U1 of corresponding 89C52 single-chip microcomputer mouth 21,22,23,24 pin.Make following four kinds of results behind the coding that single-chip microcomputer U1 (89C52) acquisition MAX154 chip U2 provides:
The first, the digital displays temperature value of LCD of driving LCD chip U8;
The second, the U1 of 89C52 single-chip microcomputer controls 38 pin P01 (I/O mouth) and is transformed into low level from original high level, drives the relay adhesive through VT2 (9012).Become normally closed by original often opening, normally closed change is often opened.Control inner bag power supply and duplex water valve.
The 3rd, it is bright to drive pilot lamp LED1 heating/refrigeration lamp, and LED2 is normal, and lamp goes out;
The 4th, drive loudspeaker and utter a word.1 pin of the U1 of 89C52 single-chip microcomputer becomes low level by original high level.The action of PC817 optocoupler T4 control end voltage difference.Inferior utmost point picked up signal.Make switching tube VT1 (9012) base stage approach to land, action.Collector becomes high level.Amplifier pipe U12 (LM386) and musical film U11 (9561) obtain voltage power supply simultaneously.The 3 pin input ends of amplifier pipe U12 are arrived in the voice signal output of musical film U11 through capacitor C 3 (104), resistance R 4 (1K is adjustable).This moment, resistance R 4 adjustings directly influenced the size of the amplification of sound.Signal after last 5 pin by amplifier pipe U12 amplify by capacitor C 1 (33uF) output, loudspeaker are uttered a word " present moment xxxx heats/ freeze ", and the user is learnt.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection domain of the present utility model.
Claims (10)
1. the intelligence control circuit system of water dispenser is characterized in that, comprising:
One single chip machine controlling circuit (1), its input is connected in time circuit (2), A/D change-over circuit (5), keyboard circuit (6) and watchdog circuit (12), its output is connected in the driving interface circuit (7) of LCD display circuit (13), pilot lamp (10), sound generating circuit (11) and water dispenser, and its input and output are connected in communicating circuit (14);
One time circuit (2), its output is connected in described single chip machine controlling circuit (1);
One K type temperature collection circuit (3) is arranged in the water dispenser water receiver, and its output is connected in discharge circuit (4);
One discharge circuit (4), its output are connected in described K type temperature collection circuit (3), and its output is connected in A/D change-over circuit (5);
One A/D change-over circuit (5), its input is connected in described discharge circuit (4), and its output is connected in described single chip machine controlling circuit (1);
One keyboard circuit (6), its output are connected in described single chip machine controlling circuit (1);
One driving interface circuit (7), its input is connected in described single chip machine controlling circuit (1), and output is connected in the inner bag power supply (8) and the duplex water valve (9) of water dispenser;
One pilot lamp (10), its input are connected in described single chip machine controlling circuit (1);
One sound generating circuit (11), its input are connected in described single chip machine controlling circuit (1);
One watchdog circuit (12), its output are connected in described single chip machine controlling circuit (1);
One LCD display circuit (13), its input is connected in described single chip machine controlling circuit (1);
One communicating circuit (14), its input and output are connected in described single chip machine controlling circuit (1).
2. the intelligence control circuit system of water dispenser according to claim 1, it is characterized in that: described intelligence control circuit system also comprises a power circuit (15), and be electrically connected to each circuit unit, described power circuit (15) is that the power rectifier voltage stabilizing chip (U9, U10) that the output terminal of transformer is connected with its output terminal through a full-bridge rectification unit of being made up of 4 diodes constitutes, and the input end of described power rectifier voltage stabilizing chip (U9, U10) and output terminal are all and be connected to 2 filter capacitors.
3. the intelligence control circuit system of water dispenser according to claim 1, it is characterized in that: described single chip machine controlling circuit (1) is that 89C52 chip (U1) and connection crystal oscillating circuit thereon constitute, and described crystal oscillating circuit is that a crystal oscillator (Y2) and two sides connect electric capacity (C20, C21) composition.
4. the intelligence control circuit system of water dispenser according to claim 1, it is characterized in that: described time circuit (2) is to be made of time control chip DS1302, and its pin 5 (RST), 6 (I/0 mouth), 7 (SCLK) pin are connected with the pin one 2,24,14 (I/0 mouth) of single-chip microcomputer 89C52 chip (U1).
5. the intelligence control circuit system of water dispenser according to claim 1 is characterized in that: described K type temperature collection circuit (3) is multichannel, and is connected in analog switching circuit and exports and be connected to described discharge circuit (4).
6. the intelligence control circuit system of water dispenser according to claim 5, it is characterized in that: described discharge circuit (4) is to be made of instrument amplifier chip AD623.
7. the intelligence control circuit system of water dispenser according to claim 1 is characterized in that: described pilot lamp (10) is that the light emitting diode (LED1, LED2) and the series connection current-limiting resistance (R5, R6) thereon that are connected in 89C52 chip (U1) port constitute.
8. the intelligence control circuit system of water dispenser according to claim 1, it is characterized in that: described sound generating circuit (11) is to be made of 9561 sound generation chips (U11) and peripheral resistance and electric capacity, LM386 operational amplifier (U3) through sound power amplifier (9) drives the loudspeaker that connects thereon, and its drive end is that the port of 89C52 chip (U1) passes through to connect photoelectrical coupler (T4) control semiconductor switch pipe (VT1) thereon.
9. the intelligence control circuit system of water dispenser according to claim 1 is characterized in that: described watchdog circuit (13) is that 5045 chips (U5) and RC vibration (R5, C22) circuit of being connected thereon constitute.
10. the intelligence control circuit system of water dispenser according to claim 1, it is characterized in that: described communicating circuit (14) is the RS485 communicating circuit, be made of RS485 communication chip and the resistance (R30) that connects thereon, input end also is connected with photoelectrical coupler and carries out Signal Spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201941346U CN201489335U (en) | 2009-09-02 | 2009-09-02 | Intelligent control circuit system of water dispenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201941346U CN201489335U (en) | 2009-09-02 | 2009-09-02 | Intelligent control circuit system of water dispenser |
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| Publication Number | Publication Date |
|---|---|
| CN201489335U true CN201489335U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201941346U Expired - Fee Related CN201489335U (en) | 2009-09-02 | 2009-09-02 | Intelligent control circuit system of water dispenser |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976089A (en) * | 2010-11-12 | 2011-02-16 | 安徽电气工程职业技术学院 | Time and temperature controller for annealing furnace |
| CN104391522A (en) * | 2014-12-04 | 2015-03-04 | 潘荣华 | Temperature regulation and control circuit of water dispenser |
| CN104887082A (en) * | 2014-03-04 | 2015-09-09 | 优瑞电器股份有限公司 | Hot fluid maker for automatic coffee machine |
| CN105919428A (en) * | 2016-06-24 | 2016-09-07 | 镇江市高等专科学校 | Temperature regulation control system of beverage dispenser and temperature regulation control method thereof |
| CN110240109A (en) * | 2018-03-07 | 2019-09-17 | 佛山市顺德区美的饮水机制造有限公司 | Water dispenser and its man-machine interactive system and prompt control method |
-
2009
- 2009-09-02 CN CN2009201941346U patent/CN201489335U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976089A (en) * | 2010-11-12 | 2011-02-16 | 安徽电气工程职业技术学院 | Time and temperature controller for annealing furnace |
| CN101976089B (en) * | 2010-11-12 | 2012-07-04 | 安徽电气工程职业技术学院 | Time and temperature controller for annealing furnace |
| CN104887082A (en) * | 2014-03-04 | 2015-09-09 | 优瑞电器股份有限公司 | Hot fluid maker for automatic coffee machine |
| CN104391522A (en) * | 2014-12-04 | 2015-03-04 | 潘荣华 | Temperature regulation and control circuit of water dispenser |
| CN105919428A (en) * | 2016-06-24 | 2016-09-07 | 镇江市高等专科学校 | Temperature regulation control system of beverage dispenser and temperature regulation control method thereof |
| CN110240109A (en) * | 2018-03-07 | 2019-09-17 | 佛山市顺德区美的饮水机制造有限公司 | Water dispenser and its man-machine interactive system and prompt control method |
| CN110240109B (en) * | 2018-03-07 | 2021-02-02 | 佛山市顺德区美的饮水机制造有限公司 | Water dispenser and human-computer interaction system and prompt control method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120902 |