CN103760793B - Water purification installation fault self-checking system - Google Patents
Water purification installation fault self-checking system Download PDFInfo
- Publication number
- CN103760793B CN103760793B CN201310747814.7A CN201310747814A CN103760793B CN 103760793 B CN103760793 B CN 103760793B CN 201310747814 A CN201310747814 A CN 201310747814A CN 103760793 B CN103760793 B CN 103760793B
- Authority
- CN
- China
- Prior art keywords
- resistance
- circuit
- pin
- electrode
- electric capacity
- 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.)
- Active
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a kind of fault self-inspection technology of water purification device, including: failure detector circuit: the working condition signal of telecommunication in its circuit is fed back to single chip machine controlling circuit, when a failure occurs, to one high level signal of single chip machine controlling circuit；When working properly, to one low level signal of single chip machine controlling circuit；Single chip machine controlling circuit: receive the signal of telecommunication of failure detector circuit output, does not give display circuit signal when receiving low level signal；When receiving high level signal to one signal of display circuit；Display circuit: receiving the signal of telecommunication of single chip machine controlling circuit output, display circuit does not works when receiving low level signal；The display circuit work when receiving high level signal, shows malfunction indicator lamp；Power supply circuits: provide power supply to testing circuit, single chip machine controlling circuit and display circuit.The present invention can self-checking circuit fault, when detect fault time, shown by display lamp, do not show, it is ensured that terminal use can use safely.
Description
Technical field
The present invention relates to a kind of water purification installation, particularly relate to a kind of water purification installation fault self-checking system.
Background technology
In current water purification installation manufacturing, water purification installation great majority the most only have single water purifying function, and lack these functions for terminal user safety design, at present, most of water purification installations on the market are all merely resting on this simple function reported to the police for self-inspection of leaking, and the present invention relates to each critical piece of whole water purification installation, as long as one of which breaks down, this device all can be shown duty current with prompting this device of user on a display screen；The announcement of the present invention is intended to fill up the blank in this field, and promotes Consumer's Experience, improves safety (water purification machine relates to 220V～household electric), ease for use that water purification installation uses for domestic consumer.
Summary of the invention
It is an object of the invention to provide a kind of water purification installation fault self-checking system, it when detecting fault with the fault in each circuit of self-inspection, can be shown by display lamp, do not show, it is ensured that terminal use can use safely.
To achieve these goals, the present invention provides a kind of water purification installation fault self-checking system, including:
Failure detector circuit: the working condition signal of telecommunication in its circuit is fed back to single chip machine controlling circuit, when a failure occurs, to one high level signal of single chip machine controlling circuit, when working properly, to one low level signal of single chip machine controlling circuit；
Single chip machine controlling circuit: receive the signal of telecommunication of failure detector circuit output, does not give display circuit signal, when receiving high level signal to one signal of display circuit when receiving low level signal；
Display circuit: receiving the signal of telecommunication of single chip machine controlling circuit output, display circuit does not works when receiving low level signal, the display circuit work when receiving high level signal, show malfunction indicator lamp；
Power supply circuits: provide power supply to testing circuit, single chip machine controlling circuit and display circuit；
Described failure detector circuit is low tension switch testing circuit, described low tension switch testing circuit includes PP low tension switch, one electrode of described PP low tension switch is connected with the pin 10 of the main control chip of single chip machine controlling circuit through resistance R33, another electrode ground connection of described PP low tension switch, connects electric capacity C34 between two electrodes of described PP low tension switch.
Described failure detector circuit or be heating tank testing circuit, described heating tank testing circuit includes temperature probe, one electrode of described temperature probe is connected with the pin 14 of the main control chip of single chip machine controlling circuit, this electrode of described temperature probe is through resistance R14 ground connection, the two ends of described resistance R14 connect electric capacity C10, and another electrode of described temperature probe is connected with+5V power supply.
nullDescribed failure detector circuit or be pump working state detection circuit，Described pump working state detection circuit includes water pump，One electrode of described water pump is connected with the pin 21 of the main control chip of single chip machine controlling circuit through resistance R37，Serial resistance R1 and diode D2 between two electrodes of described water pump，The two ends of described resistance R1 connect electric capacity C22，The two ends of described electric capacity C22 connect diode D26，The connection end ground connection of resistance R1 and diode D2，Another electrode of described water pump is connected with the input of relay K EY3，Outfan two electrode of relay K EY3 is connected with diode D8，Outfan one electrode of relay K EY3 is connected with+24V power supply，Another electrode of the outfan of relay K EY3 pin 33 of main control chip with single chip machine controlling circuit after audion Q3 and resistance R40 is connected，The grounded emitter of audion Q3.
nullDescribed failure detector circuit or be electromagnetic valve work state detection circuit，Described electromagnetic valve work state detection circuit includes electromagnetic valve，Described electromagnetic valve one electrode is connected with the pin 22 of the main control chip of single chip machine controlling circuit through resistance R36，Resistance R2 and diode D1 is connected between two electrodes of described electromagnetic valve，The two ends of resistance R2 connect electric capacity C21，The two ends of electric capacity C21 connect diode D25，The connection end ground connection of resistance R2 and diode D1，Another electrode of described electromagnetic valve is connected with the input of relay K EY2，Outfan two electrode of relay K EY2 is connected with diode D7，Outfan one electrode of relay K EY2 is connected with+24V power supply，Another electrode of relay K EY2 outfan pin 34 of main control chip with single chip machine controlling circuit after audion Q2 and resistance R39 is connected，This electrode of relay K EY2 outfan is through audion Q2、It is connected with+5V power supply after resistance R39 and resistance R54.
nullDescribed failure detector circuit or be high water level testing circuit、Middle water level testing circuit and low water level testing circuit，Described high water level testing circuit includes the high water level probe being arranged at water tank upper，One electrode of high water level probe is through electric capacity C3、It is connected with+24V power supply after resistance R6，This electrode of high water level probe also after audion Q6 and resistance R10 the pin 25 of main control chip with single chip machine controlling circuit be connected，The grounded emitter of audion Q6，Another electrode of high water level probe is through electric capacity C4、After diode D17 and resistance R23, the pin 20 with main control chip is connected，This electrode of high water level probe is also through electric capacity C4、Diode D17、Ground connection after resistance R24，The two ends of resistance R24 connect electric capacity C14，It is connected between this electrode and the pin 20 of main control chip of high water level probe and has resistance R27 and diode D20，The connection end ground connection of resistance R27 and diode D20，The two ends of resistance R27 connect electric capacity C17，The two ends of electric capacity C17 connect diode D14，Described middle water level testing circuit includes the middle water level probe being arranged in the middle part of water tank，One electrode of middle water level probe is through electric capacity C5、It is connected with+24V power supply after resistance R4，This electrode of middle water level probe also after audion Q7 and resistance R11 pin 25 with main control chip be connected，The grounded emitter of audion Q7，Another electrode of middle water level probe is through electric capacity C6、Diode D16、After resistance R21, the pin 19 with main control chip is connected，This electrode of middle water level probe is also through electric capacity C6、Diode D16、Ground connection after resistance R22，The two ends of resistance R22 connect electric capacity C13，It is connected between this electrode and the pin 19 of main control chip of middle water level probe and has resistance R26 and diode D19，The connection end ground connection of resistance R26 and diode D19，The two ends of resistance R26 connect electric capacity C16，The two ends of electric capacity C16 connect diode D13，Described low water level testing circuit includes the low water level probe being arranged at water tank bottom，One electrode of low water level probe is through electric capacity C7、It is connected with+24V power supply after resistance R5，This electrode of low water level probe also after audion Q8 and resistance R12 pin 25 with main control chip be connected，The grounded emitter of audion Q8，Another electrode of low water level probe is through electric capacity C8、After diode D15 and resistance R19, the pin 18 with main control chip is connected，This electrode of low water level probe is also through electric capacity C8、Diode D15、Ground connection after resistance R20，The two ends of resistance R20 connect electric capacity C12，It is connected between this electrode and the pin 18 of main control chip of low water level probe and has resistance R25 and diode D18，The connection end ground connection of resistance R25 and diode D18，The two ends of resistance R25 connect electric capacity C15，The two ends of electric capacity C15 connect diode D12.
Also include drive circuit: receive the signal of telecommunication of single chip machine controlling circuit output, the drive circuit works when receiving low level signal；When receiving high level signal, drive circuit does not works；Described single chip machine controlling circuit when receiving the low level signal of failure detector circuit to one Persistent Excitation of drive circuit, when receiving high level signal to drive circuit not output signal；Described drive circuit is provided power supply by described power supply circuits.
nullDescribed failure detector circuit or be crystal oscillator time control circuit，Described crystal oscillator time control circuit includes chip IC 5，The pin 1 of chip IC 5、8 connect+3.6V power supply，The pin 2 of chip IC 5 ground connection after electric capacity C27，The pin 3 of chip IC 5 is through crystal oscillator XT、Ground connection after electric capacity C27，Pin 4 ground connection of chip IC 5，The pin 3 of chip IC 5、Electric capacity C28 is connected between 4，The pin 7 of chip IC 5 is connected with the pin 42 of the main control chip of single chip machine controlling circuit through resistance R45，The pin 7 of chip IC 5 is also connected through resistance R51 and+5V power supply，The pin 6 of chip IC 5 is connected with the pin 43 of main control chip through resistance R46，The pin 6 of chip IC 5 is also connected through resistance R50 and+5V power supply，The pin 5 of chip IC 5 is connected with the pin 44 of main control chip through resistance R47，The pin 5 of chip IC 5 is also connected through resistance R49 and+5V power supply.
Described drive circuit is heater switch circuit, described heater switch circuit includes relay K EY1 being connected with domestic power supply, two outfans of relay K EY1 are connected with diode D6, one of them outfan of relay K EY1 connects+24V voltage, another outfan of relay K EY1 pin 35 of main control chip with single chip machine controlling circuit after audion Q1, resistance R38 is connected, this outfan of relay K EY1 is also connected with+5V power supply after audion Q1, resistance R38, resistance R55, the grounded emitter of audion Q1.
Also including that functions of child lock button drive circuit, described functions of child lock button drive circuit include that hot water key, described hot water key are connected with the pin 3 of chip IC 2 through resistance R17, the pin 14 of chip IC 2 is connected with the pin 16 of main control chip.
After using such scheme, water purification installation fault self-checking system of the present invention feeds back to single chip machine controlling circuit by failure detector circuit to self circuit working state, display circuit is fed back to again by single chip machine controlling circuit, when failure detector circuit breaks down, the display lamp of display circuit shows, do not show, thus ensure that terminal use can use safely.
The present invention provides the benefit that further: arrange low tension switch testing circuit, upon power-up, if main control chip detects the high level signal produced because PP low tension switch closes by pin 10, display screen does not shows, as main control chip only detects low level signal, PP cotton blocking icon will be shown on a display screen by display screen single chip circuit by so main control chip, inform user, it is ensured that the use safety of user.
The present invention provides the benefit that further: arrange heating tank testing circuit, after heating function is opened, main control chip detects the temperature in heating tank by pin 14, as heating tank testing circuit closes 3 minutes, and cannot have temperature rise in heating tank being detected by pin 14, then main control chip by display screen single-chip microcomputer by heating tank malfunction coefficient on a display screen, informs user, it is ensured that the use safety of user.
The present invention provides the benefit that further: pump working state detection circuit is when controlling the water circulation function is opened, main control chip detects the duty of water pump by pin 21, when pump working, pin 21 can detect a high level signal, main control chip provides the voltage of a 5V to relay K EY3 by pin 33, relay K EY3 is made to close, now water pump two ends have a 24V voltage, as water pump does not works, then main control chip can detect a low level signal by pin 21, and by display screen single-chip microcomputer, fault of water pump is shown on screen, thus inform user, ensure the use safety of user.
The present invention provides the benefit that further: electromagnetic valve work state detection circuit detects the duty of electromagnetic valve by the pin 22 of main control chip, when the signal of low tension switch Guan Bi arrives main control chip, main control chip can give the voltage of mono-5V of relay K EY2 by pin 34, relay K EY2 is made to close, to be reached for the purpose of electromagnetic valve offer 24V voltage, when electromagnetic valve normally works, pin 22 can feed back to one high level signal of main control chip, as electromagnetic valve can not work, then main control chip can detect a low level signal by pin 22, and by display screen single-chip microcomputer, solenoid valve failure is shown on a display screen, thus inform user, ensure the use safety of user.
The present invention provides the benefit that further: arranges height, neutralize low water level testing circuit, and display screen has the raising and lowering (i.e. controlling the water circulation and discharge water) of animation display water level detected by testing circuit；When during testing circuit detects, low water level time, in, low water level animation Chang Liang, when testing circuit detects high water level, single chip machine controlling circuit drives motor and electromagnetic valve to quit work.
The present invention provides the benefit that further: arrange crystal oscillator time control circuit and heater switch circuit, detected if the time was between at 11 in evening to the next morning 6 by the pin 42,43,44 of main control chip, then heater circuit is made to be constantly in off-state by pin 35, so period main control chip detects the signal forcing heating by button drive circuit, then close heater circuit by pin 35.
The present invention provides the benefit that further: arrange functions of child lock button drive circuit, pin 16 by main control chip detects the input signal of hot water key, under original state, the incoming level signal of hot water key is low level, and when user presses hot water key by finger length, button drive circuit can change incoming level signal, now incoming level signal becomes high level, now main control chip can lock hot water valve by pin 32, makes hot water valve not open, it is to avoid hot water valve is opened accidentally scalds.
Accompanying drawing explanation
Fig. 1 is the logic diagram one of water purification installation fault self-checking system of the present invention；
Fig. 2 is the power supply circuit of water purification installation fault self-checking system of the present invention；
Fig. 3 is the main control chip circuit diagram of water purification installation fault self-checking system of the present invention；
Fig. 4 is the low tension switch testing circuit figure of water purification installation fault self-checking system of the present invention；
Fig. 5 is the heating tank testing circuit figure of water purification installation fault self-checking system of the present invention；
Fig. 6 is the pump working state detection circuit figure of water purification installation fault self-checking system of the present invention；
Fig. 7 is the electromagnetic valve work state detection circuit figure of water purification installation fault self-checking system of the present invention；
Fig. 8 is the high water level testing circuit figure of water purification installation fault self-checking system of the present invention；
Fig. 9 is the middle water level testing circuit figure of water purification installation fault self-checking system of the present invention；
Figure 10 is the low water level testing circuit figure of water purification installation fault self-checking system of the present invention；
Figure 11 is the logic diagram two of water purification installation fault self-checking system of the present invention；
Figure 12 is the heater switch circuit diagram of water purification installation fault self-checking system of the present invention；
Figure 13 is the crystal oscillator time control circuit figure of water purification installation fault self-checking system of the present invention；
Figure 14 is the functions of child lock button drive circuit figure of water purification installation fault self-checking system of the present invention.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, water purification installation fault self-checking system of the present invention, including power supply circuits 1: combine shown in Fig. 2, power supply circuits 1 include chip IC 1, pin 1 and the pin 7 of chip IC 1, 8 connect, the pin 2 of chip IC 1 ground connection after diode D11, the pin 2 of chip IC 1 is connected through inductance L and+5V power supply simultaneously, the pin 3 of chip IC 1 is through electric capacity C2 ground connection, pin 4 ground connection of chip IC 1, the pin 5 of chip IC 1 is connected through resistance R7 and+5V power supply, the pin 5 of chip IC 1 ground connection after resistance R8 simultaneously, the pin 6 of chip IC 1 is connected with+24V power supply, the pin 6 of chip IC 1 and pin 7 simultaneously, connect between 8 and have resistance R3；
Single chip machine controlling circuit 2: as it is shown on figure 3, single chip machine controlling circuit 2 includes main control chip 5；
Failure detector circuit 3: this failure detector circuit 3 is low tension switch testing circuit 6.As shown in Figure 4, low tension switch testing circuit 6 includes PP(filter element filtering outlet) low tension switch 7, one electrode of PP low tension switch 7 is connected with the pin 10 of main control chip 5 through resistance R33, another electrode ground connection of PP low tension switch 7, connects electric capacity C34 between two electrodes of PP low tension switch 7；
With display circuit 4, display circuit 4 has the display screen (not shown) for showing fault.
Upon power-up, if the pin 10 of main control chip 5 detects the high level signal produced because PP low tension switch 7 closes, display screen does not shows, as main control chip 5 only detects low level signal, then PP cotton blocking icon will be shown on a display screen by main control chip 5 by display screen single chip circuit.
As shown in Figure 5, failure detector circuit 3 is the circuit diagram of heating tank testing circuit 8, heating tank testing circuit 8 includes temperature probe 9, one electrode of temperature probe 9 is connected with the pin 14 of main control chip 5, this electrode of temperature probe 9 is through resistance R14 ground connection, this electrode of temperature probe 9 is connected with+5V power supply through electric capacity C10 ground connection, another electrode of temperature probe 9.
After heating function is opened, main control chip 5 detects the temperature in heating tank by pin 14, as heating tank testing circuit closes 3 minutes, and cannot have temperature rise in heating tank being detected by pin 14, then main control chip is by display screen single-chip microcomputer by heating tank malfunction coefficient on a display screen.
nullAs shown in Figure 6，Failure detector circuit 3 is the circuit diagram of pump working state detection circuit 10，It includes water pump 11，One electrode of water pump 11 is connected through the pin 21 of resistance R37 with the main control chip 5 of single chip machine controlling circuit，Serial resistance R1 and diode D2 between two electrodes of water pump 11，The two ends of resistance R1 connect electric capacity C22，The two ends of electric capacity C22 connect diode D26，The connection end ground connection of resistance R1 and diode D2，Another electrode of water pump 11 is connected with the input of relay switch KEY3，Outfan two electrode of relay K EY3 is connected with diode D8，Outfan one electrode of relay K EY3 is connected with+24V power supply，Another electrode of the outfan of relay K EY3 pin 33 with main control chip 5 after audion Q3 and resistance R40 is connected，The grounded emitter of audion Q3.
When controlling the water circulation function is opened, the pin 21 of main control chip 5 detects the duty of water pump 11, when water pump 11 works, pin 21 can detect a high level signal, and main control chip 5 provides the voltage of a 5V to relay K EY3 by pin 33, makes relay K EY3 close, now water pump 11 two ends have a 24V voltage, as water pump 11 does not works, then the pin 21 of main control chip 5 can detect a low level signal, and by display screen single-chip microcomputer by water pump 11 malfunction coefficient on screen.
nullAs shown in Figure 7，Failure detector circuit 3 is the circuit diagram of pump working state detection circuit 12，It includes electromagnetic valve 13，One electrode of electromagnetic valve 13 is connected through the pin 22 of resistance R36 with the main control chip 5 of single chip machine controlling circuit，Resistance R2 and diode D1 is connected between two electrodes of electromagnetic valve 13，The two ends of resistance R2 connect electric capacity C21，The two ends of electric capacity C21 connect diode D25，The connection end ground connection of resistance R2 and diode D1，Another electrode of electromagnetic valve 13 is connected with the input of relay K EY2，Outfan two electrode of relay K EY2 is connected with diode D7，Outfan one electrode of relay K EY2 is connected with+24V power supply，Another electrode of relay K EY2 outfan pin 34 with main control chip 5 after audion Q2 and resistance R39 is connected，This electrode of relay K EY2 outfan is through audion Q2、It is connected with+5V power supply after resistance R39 and resistance R54.
When the signal of low tension switch Guan Bi arrives main control chip 5, main control chip 5 can give the voltage of mono-5V of relay K EY2 by pin 34, relay K EY2 is made to close, there is provided the purpose of 24V voltage being reached for electromagnetic valve 13, when electromagnetic valve 13 normally works, pin 22 can feed back to 5 one high level signals of main control chip, as electromagnetic valve 13 can not work, then main control chip 5 can detect a low level signal by pin 22, and passes through display screen single-chip microcomputer by electromagnetic valve 13 malfunction coefficient on a display screen.
nullWhen failure detector circuit 3 is high water level testing circuit 14、When middle water level testing circuit 15 and low water level testing circuit 16，Such as Fig. 8、Shown in Fig. 9 and Figure 10，High water level testing circuit 14 includes the high water level probe 17 being arranged at water tank upper，One electrode of high water level probe 17 is through electric capacity C3、It is connected with+24V power supply after resistance R6，This electrode of high water level probe 17 also after audion Q6 and resistance R10 pin 25 with main control chip 5 be connected，The grounded emitter of audion Q6，Another electrode of high water level probe 17 is through electric capacity C4、After diode D17 and resistance R23, the pin 20 with main control chip 5 is connected，This electrode of high water level probe 17 is also through electric capacity C4、Diode D17、Ground connection after resistance R24，The two ends of resistance R24 connect electric capacity C14，It is connected between this electrode and the pin 20 of main control chip 5 of high water level probe 17 and has resistance R27 and diode D20，The connection end ground connection of resistance R27 and diode D20，The two ends of resistance R27 connect electric capacity C17，The two ends of electric capacity C17 connect diode D14；
nullMiddle water level testing circuit 15 includes the middle water level probe 18 being arranged in the middle part of water tank，One electrode of middle water level probe 18 is through electric capacity C5、It is connected with+24V power supply after resistance R4，This electrode of middle water level probe 18 also after audion Q7 and resistance R11 pin 25 with main control chip 5 be connected，The grounded emitter of Q7，Another electrode of middle water level probe 18 is through electric capacity C6、Diode D16、After resistance R21, the pin 19 with main control chip 5 is connected，This electrode of middle water level probe 18 is also through electric capacity C6、Diode D16、Ground connection after resistance R22，The two ends of resistance R22 connect electric capacity C13，It is connected between this electrode and the pin 19 of main control chip 5 of middle water level probe 18 and has resistance R26 and diode D19，The connection end ground connection of resistance R26 and diode D19，The two ends of resistance R26 connect electric capacity C16，The two ends of electric capacity C16 connect diode D13；
nullLow water level testing circuit 16 includes the low water level probe 19 being arranged at water tank bottom，One electrode of low water level probe 19 is through electric capacity C7、It is connected with+24V power supply after resistance R5，This electrode of low water level probe 19 also after audion Q8 and resistance R12 pin 25 with main control chip 5 be connected，The grounded emitter of Q8，Another electrode of low water level probe 19 is through electric capacity C8、After diode D15 and resistance R19, the pin 18 with main control chip 5 is connected，This electrode of low water level probe 19 is also through electric capacity C8、Diode D15、Ground connection after resistance R20，The two ends of resistance R20 connect electric capacity C12，It is connected between this electrode and the pin 18 of main control chip 5 of low water level probe 19 and has resistance R25 and diode D18，The connection end ground connection of resistance R25 and diode D18，The two ends of resistance R25 connect electric capacity C15，The two ends of electric capacity C15 connect diode D12.
High water level testing circuit 14: when cock of water drain is opened, high water level is can't detect during discharging water, high water level 3 sections is lighted the most successively, and water pump 11 work starts water inlet, at the end of discharging water, when can't detect high water level, then high water level 3 sections is lighted the most successively, and when water inlet detects high water level, high water level 3 sections is normal bright, whether main control chip 5 meets high water level requirement by pin 20,25 detection liquid level, then high water level state is shown on screen by display screen single-chip microcomputer as met；
Middle water level testing circuit 15: when cock of water drain is opened, during as can't detect middle water level during discharging water, high water level knocks out, middle water level three sections is lighted the most successively, low water level is still lighted, at the end of discharging water, when can't detect middle water level, then middle water level 3 sections is lighted the most successively, when water inlet detects middle water level, middle water level 3 sections is normal bright, and main control chip 5 detects middle water level state by pin 19,25, can middle water level state be shown on screen as liquid level reaches middle water level display screen single-chip microcomputer；
Low water level testing circuit 16: when cock of water drain is opened, during as can't detect low water level during discharging water, high water level knocks out, middle water level knocks out, then low water level 3 sections is lighted the most successively, at the end of discharging water, when can't detect low water level, then low water level 3 sections is lighted the most successively, when water inlet detects low water level, low water level 3 sections is normal bright, and main control chip detects low water level state by pin 18,25, when liquid level floods low water level, main control chip can detect low water level signal, and now it will drive display screen single-chip microcomputer low water level state to be shown on screen.
As shown in figure 11, water purification installation fault self-checking system of the present invention, its major part technical characteristic is identical with Fig. 1, and difference is: also include that drive circuit 20, drive circuit 20 are provided power supply by power supply circuits 1.As shown in figure 12, drive circuit 20 is heater switch circuit 21, heater switch circuit 21 includes relay K EY1 being connected with domestic power supply, two outfans of relay K EY1 are connected with diode D6, one of them outfan of relay K EY1 connects+24V voltage, another outfan of relay K EY1 pin 35 with main control chip 5 after audion Q1, resistance R38 is connected, this outfan of relay K EY1 is also connected with+5V power supply after audion Q1, resistance R38, resistance R55, the grounded emitter of audion Q1.nullAnd failure detector circuit 3 is crystal oscillator time control circuit 22，As shown in figure 13，Crystal oscillator time control circuit 22 includes chip IC 5，The pin 1 of chip IC 5、8 connect+3.6V power supply，The pin 2 of chip IC 5 ground connection after electric capacity C27，The pin 3 of chip IC 5 is through crystal oscillator XT、Ground connection after electric capacity C27，Pin 4 ground connection of chip IC 5，The pin 3 of chip IC 5、Electric capacity C28 is connected between 4，The pin 7 of chip IC 5 is connected with the pin 42 of main control chip 5 through resistance R45，The pin 7 of chip IC 5 is also connected through resistance R51 and+5V power supply，The pin 6 of chip IC 5 is connected with the pin 43 of main control chip 5 through resistance R46，The pin 6 of chip IC 5 is also connected through resistance R50 and+5V power supply，The pin 5 of chip IC 5 is connected with the pin 44 of main control chip 5 through resistance R47，The pin 5 of chip IC 5 is also connected through resistance R49 and+5V power supply.
The pin 42,43,44 of main control chip 5 detects that the time was between at 11 in evening to the next morning 6, then heater circuit is made to be constantly in off-state by pin 35, so period main control chip 5 detects the signal forcing heating by button drive circuit, then close heater circuit by pin 35.
As shown in figure 14, also including that functions of child lock button drive circuit 23, functions of child lock button drive circuit 23 include hot water key 24, hot water key 24 is connected with the pin 3 of chip IC 2 through resistance R17, and the pin 14 of chip IC 2 is connected with the pin 16 of main control chip 5.The pin 16 of main control chip 5 is for detecting the input signal of hot water key 24, under original state, the incoming level signal of hot water key 24 is low level, when user presses hot water key 24 by finger length, button drive circuit 23 can change incoming level signal, and now incoming level signal becomes high level, and now main control chip 5 can lock hot water valve by pin 32, hot water valve is made not open, it is to avoid hot water valve is opened accidentally scalds.
Embodiment described above is only the preferred embodiment lifted by absolutely proving the present invention, and protection scope of the present invention is not limited to this.The equivalent that those skilled in the art are made on the basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (9)
1. a water purification installation fault self-checking system, it is characterised in that: including:
Failure detector circuit: the working condition signal of telecommunication in its circuit is fed back to single chip machine controlling circuit, when a failure occurs, to one high level signal of single chip machine controlling circuit；When working properly, to one low level signal of single chip machine controlling circuit；Single chip machine controlling circuit: receive the signal of telecommunication of failure detector circuit output, does not give display circuit signal, when receiving high level signal to one signal of display circuit when receiving low level signal；
Display circuit: receiving the signal of telecommunication of single chip machine controlling circuit output, display circuit does not works when receiving low level signal, the display circuit work when receiving high level signal, show malfunction indicator lamp；
Power supply circuits: provide power supply to testing circuit, single chip machine controlling circuit and display circuit；
Described failure detector circuit is low tension switch testing circuit, described low tension switch testing circuit includes PP low tension switch, one electrode of described PP low tension switch is connected with the pin 10 of the main control chip of single chip machine controlling circuit through resistance R33, another electrode ground connection of described PP low tension switch, connects electric capacity C34 between two electrodes of described PP low tension switch.
Water purification installation fault self-checking system the most according to claim 1, it is characterized in that: described failure detector circuit or for heating tank testing circuit, described heating tank testing circuit includes temperature probe, one electrode of described temperature probe is connected with the pin 14 of the main control chip of single chip machine controlling circuit, this electrode of described temperature probe is through resistance R14 ground connection, the two ends of described resistance R14 connect electric capacity C10, and another electrode of described temperature probe is connected with+5V power supply.
nullWater purification installation fault self-checking system the most according to claim 1，It is characterized in that: described failure detector circuit or for pump working state detection circuit，Described pump working state detection circuit includes water pump，One electrode of described water pump is connected with the pin 21 of the main control chip of single chip machine controlling circuit through resistance R37，Serial resistance R1 and diode D2 between two electrodes of described water pump，The two ends of described resistance R1 connect electric capacity C22，The two ends of described electric capacity C22 connect diode D26，The connection end ground connection of resistance R1 and diode D2，Another electrode of described water pump is connected with the input of relay K EY3，Outfan two electrode of relay K EY3 is connected with diode D8，Outfan one electrode of relay K EY3 is connected with+24V power supply，Another electrode of the outfan of relay K EY3 pin 33 of main control chip with single chip machine controlling circuit after audion Q3 and resistance R40 is connected，The grounded emitter of audion Q3.
nullWater purification installation fault self-checking system the most according to claim 1，It is characterized in that: described failure detector circuit or for electromagnetic valve work state detection circuit，Described electromagnetic valve work state detection circuit includes electromagnetic valve，Described electromagnetic valve one electrode is connected with the pin 22 of the main control chip of single chip machine controlling circuit through resistance R36，Resistance R2 and diode D1 is connected between two electrodes of described electromagnetic valve，The two ends of resistance R2 connect electric capacity C21，The two ends of electric capacity C21 connect diode D25，The connection end ground connection of resistance R2 and diode D1，Another electrode of described electromagnetic valve is connected with the input of relay K EY2，Outfan two electrode of relay K EY2 is connected with diode D7，Outfan one electrode of relay K EY2 is connected with+24V power supply，Another electrode of relay K EY2 outfan pin 34 of main control chip with single chip machine controlling circuit after audion Q2 and resistance R39 is connected，This electrode of relay K EY2 outfan is through audion Q2、It is connected with+5V power supply after resistance R39 and resistance R54.
nullWater purification installation fault self-checking system the most according to claim 1，It is characterized in that: described failure detector circuit or for high water level testing circuit、Middle water level testing circuit and low water level testing circuit，Described high water level testing circuit includes the high water level probe being arranged at water tank upper，One electrode of high water level probe is through electric capacity C3、It is connected with+24V power supply after resistance R6，This electrode of high water level probe also after audion Q6 and resistance R10 the pin 25 of main control chip with single chip machine controlling circuit be connected，The grounded emitter of audion Q6，Another electrode of high water level probe is through electric capacity C4、After diode D17 and resistance R23, the pin 20 with main control chip is connected，This electrode of high water level probe is also through electric capacity C4、Diode D17、Ground connection after resistance R24，The two ends of resistance R24 connect electric capacity C14，It is connected between this electrode and the pin 20 of main control chip of high water level probe and has resistance R27 and diode D20，The connection end ground connection of resistance R27 and diode D20，The two ends of resistance R27 connect electric capacity C17，The two ends of electric capacity C17 connect diode D14，Described middle water level testing circuit includes the middle water level probe being arranged in the middle part of water tank，One electrode of middle water level probe is through electric capacity C5、It is connected with+24V power supply after resistance R4，This electrode of middle water level probe also after audion Q7 and resistance R11 pin 25 with main control chip be connected，The grounded emitter of audion Q7，Another electrode of middle water level probe is through electric capacity C6、Diode D16、After resistance R21, the pin 19 with main control chip is connected，This electrode of middle water level probe is also through electric capacity C6、Diode D16、Ground connection after resistance R22，The two ends of resistance R22 connect electric capacity C13，It is connected between this electrode and the pin 19 of main control chip of middle water level probe and has resistance R26 and diode D19，The connection end ground connection of resistance R26 and diode D19，The two ends of resistance R26 connect electric capacity C16，The two ends of electric capacity C16 connect diode D13，Described low water level testing circuit includes the low water level probe being arranged at water tank bottom，One electrode of low water level probe is through electric capacity C7、It is connected with+24V power supply after resistance R5，This electrode of low water level probe also after audion Q8 and resistance R12 pin 25 with main control chip be connected，The grounded emitter of audion Q8，Another electrode of low water level probe is through electric capacity C8、After diode D15 and resistance R19, the pin 18 with main control chip is connected，This electrode of low water level probe is also through electric capacity C8、Diode D15、Ground connection after resistance R20，The two ends of resistance R20 connect electric capacity C12，It is connected between this electrode and the pin 18 of main control chip of low water level probe and has resistance R25 and diode D18，The connection end ground connection of resistance R25 and diode D18，The two ends of resistance R25 connect electric capacity C15，The two ends of electric capacity C15 connect diode D12.
Water purification installation fault self-checking system the most according to claim 1, it is characterised in that: also include drive circuit: receive the signal of telecommunication of single chip machine controlling circuit output, the drive circuit works when receiving low level signal；When receiving high level signal, drive circuit does not works；Described single chip machine controlling circuit when receiving the low level signal of failure detector circuit to one Persistent Excitation of drive circuit, when receiving high level signal to drive circuit not output signal；Described drive circuit is provided power supply by described power supply circuits.
nullWater purification installation fault self-checking system the most according to claim 6，It is characterized in that: described failure detector circuit or for crystal oscillator time control circuit，Described crystal oscillator time control circuit includes chip IC 5，The pin 1 of chip IC 5、8 connect+3.6V power supply，The pin 2 of chip IC 5 ground connection after electric capacity C27，The pin 3 of chip IC 5 is through crystal oscillator XT、Ground connection after electric capacity C27，Pin 4 ground connection of chip IC 5，The pin 3 of chip IC 5、Electric capacity C28 is connected between 4，The pin 7 of chip IC 5 is connected with the pin 42 of the main control chip of single chip machine controlling circuit through resistance R45，The pin 7 of chip IC 5 is also connected through resistance R51 and+5V power supply，The pin 6 of chip IC 5 is connected with the pin 43 of main control chip through resistance R46，The pin 6 of chip IC 5 is also connected through resistance R50 and+5V power supply，The pin 5 of chip IC 5 is connected with the pin 44 of main control chip through resistance R47，The pin 5 of chip IC 5 is also connected through resistance R49 and+5V power supply.
Water purification installation fault self-checking system the most according to claim 7, it is characterized in that: described drive circuit is heater switch circuit, described heater switch circuit includes relay K EY1 being connected with domestic power supply, two outfans of relay K EY1 are connected with diode D6, one of them outfan of relay K EY1 connects+24V voltage, another outfan of relay K EY1 is through audion Q1, after resistance R38, the pin 35 of main control chip with single chip machine controlling circuit is connected, this outfan of relay K EY1 is also through audion Q1, resistance R38, it is connected with+5V power supply after resistance R55, the grounded emitter of audion Q1.
Water purification installation fault self-checking system the most according to claim 8, it is characterized in that: also include functions of child lock button drive circuit, described functions of child lock button drive circuit includes hot water key, described hot water key is connected with the pin 3 of chip IC 2 through resistance R17, and the pin 14 of chip IC 2 is connected with the pin 16 of main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747814.7A CN103760793B (en) | 2013-12-31 | 2013-12-31 | Water purification installation fault self-checking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747814.7A CN103760793B (en) | 2013-12-31 | 2013-12-31 | Water purification installation fault self-checking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103760793A CN103760793A (en) | 2014-04-30 |
| CN103760793B true CN103760793B (en) | 2016-09-28 |
Family
ID=50528048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310747814.7A Active CN103760793B (en) | 2013-12-31 | 2013-12-31 | Water purification installation fault self-checking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103760793B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088780B (en) * | 2014-06-17 | 2016-12-07 | 广东艾沃科技有限公司 | The booster pump feedback circuit of water purifier and guard method thereof |
| CN104090499A (en) * | 2014-06-17 | 2014-10-08 | 广东艾沃科技有限公司 | Flushing magnetic valve feedback circuit of water purifier and protection method thereof |
| CN104090498A (en) * | 2014-06-17 | 2014-10-08 | 广东艾沃科技有限公司 | Water inlet magnetic valve feedback circuit of water purifier and protection method thereof |
| CN104454485B (en) * | 2014-11-24 | 2017-01-04 | 温岭市富莱欧机电有限公司 | Water pump controller |
| CN106745799A (en) * | 2016-12-08 | 2017-05-31 | 苏州陈恒织造有限公司 | A kind of central water purifier remote online intelligent detection and control system |
| CN106762590B (en) * | 2017-03-31 | 2019-08-13 | 深圳招商建筑科技有限公司 | Blowdown method for controlling pump and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050017973A (en) * | 2003-08-12 | 2005-02-23 | 주식회사 엔텍 | Clean Water Device Capable Of Setting Water Temperature |
| CN1663665A (en) * | 2004-03-04 | 2005-09-07 | 叶建荣 | Method for detecting service life of filtering core for water purifier |
| CN202529918U (en) * | 2012-01-30 | 2012-11-14 | 北京银之源科贸有限责任公司 | Water purifier for non-pressure water tank with TDS (Total Dissolved Solids) detection function |
| CN103292862A (en) * | 2012-02-24 | 2013-09-11 | 罗红光 | Water level detection circuit based on capacitance principle |
| CN203643788U (en) * | 2013-12-31 | 2014-06-11 | 武汉斯隆电气有限公司 | Water purifying device fault self-inspection technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA72503C2 (en) * | 1999-04-04 | 2005-03-15 | Сода Клаб (Со2) Са | System and method for testing of integrity of filter and water treatment system (variants) |
-
2013
- 2013-12-31 CN CN201310747814.7A patent/CN103760793B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050017973A (en) * | 2003-08-12 | 2005-02-23 | 주식회사 엔텍 | Clean Water Device Capable Of Setting Water Temperature |
| CN1663665A (en) * | 2004-03-04 | 2005-09-07 | 叶建荣 | Method for detecting service life of filtering core for water purifier |
| CN202529918U (en) * | 2012-01-30 | 2012-11-14 | 北京银之源科贸有限责任公司 | Water purifier for non-pressure water tank with TDS (Total Dissolved Solids) detection function |
| CN103292862A (en) * | 2012-02-24 | 2013-09-11 | 罗红光 | Water level detection circuit based on capacitance principle |
| CN203643788U (en) * | 2013-12-31 | 2014-06-11 | 武汉斯隆电气有限公司 | Water purifying device fault self-inspection technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103760793A (en) | 2014-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103760793B (en) | Water purification installation fault self-checking system | |
| RU2565051C2 (en) | Heating circuit with control unit for domestic appliance | |
| CN107270548B (en) | Overtemperature protection control system and electric water heater | |
| US20100001590A1 (en) | Energy-saving electrical adaptor | |
| CN104814706A (en) | Dish washer and heating wash protection and control method and device thereof | |
| CN104856565A (en) | Instant heating type drinking equipment and control method thereof | |
| CN107981797A (en) | Water tank circuit, cleaning device and the cleaning device water tank control method of cleaning device | |
| CN106505378A (en) | Intelligent wireless earth leakage protective socket | |
| CN104706298A (en) | Heating washing control method and device for dish washing machine | |
| CN103003483A (en) | Heating circuit with monitoring arrangement for a household appliance | |
| CN111459113A (en) | Intelligent socket for household appliance and power supply control system | |
| CN201717602U (en) | Noise-proof type anti-electric touch and anti-overheating protector of electric water heater | |
| CN203643788U (en) | Water purifying device fault self-inspection technology | |
| CN103075810A (en) | Power control device and water heater | |
| CN209358513U (en) | A kind of time-delay shutdown circuit, mainboard and water purifier | |
| CN106983367A (en) | A kind of full touch-control Intelligent reverse osmosis cold-hot integrated Drinking fountain and its control method | |
| CN209220190U (en) | A kind of dish-washing machine draining detection system and dish-washing machine | |
| JP4542065B2 (en) | Dishwasher | |
| CN212181309U (en) | Intelligent socket for household appliance and power supply control system | |
| CN204836609U (en) | Novel base circuit structure of electrical heating electrical apparatus | |
| CN112648746A (en) | Intelligent protection electric water heater with automatic complete machine out of work | |
| CN101251750B (en) | Electrothermic boiled water pot intelligent control circuit with multiple collecting functions | |
| WO2009116949A1 (en) | Safety switch | |
| CN201167848Y (en) | Intelligent control device of remote-control electrothermic water-boiling pot | |
| CN201167849Y (en) | Intelligent control circuit of electrothermic water-boiling pot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |