CN204533727U - A kind of touch-control water tap - Google Patents
A kind of touch-control water tap Download PDFInfo
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- CN204533727U CN204533727U CN201520060791.7U CN201520060791U CN204533727U CN 204533727 U CN204533727 U CN 204533727U CN 201520060791 U CN201520060791 U CN 201520060791U CN 204533727 U CN204533727 U CN 204533727U
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Abstract
The utility model provides a kind of touch-control water tap, belongs to water tap field of intelligent control technology.It solve the problem that in prior art, touch control tap water break-make reliability is not high.This touch-control water tap comprises master controller, touching controller, power supply circuits, metal faucet body and solenoid valve, the input pin of master controller is connected with the output pin of touching controller, driving circuit for electromagnetic valve is connected with between the output pin of master controller and solenoid valve, metal faucet body is provided with sampling capacitance C1, the detection pin of touch controller is connected with one end of metal faucet body and sampling capacitance C1, the other end ground connection of sampling capacitance C1, the reference pin of touching controller is connected with the reference capacitance C2 for determining Capacity reference value, the sensitivity pin of touching controller is connected with resistance R1 and is connected with high level by resistance R1 or is connected with low level.The utility model can improve the reliability touching water tap control water break-make.
Description
Technical field
The utility model belongs to water tap field of intelligent control technology, relates to a kind of touch-control water tap.
Background technique
Water tap is requisite bath articles during people live, and is applied to family kitchen and the toilet of the public places such as hospital, school, hotel and individual.Quickly, kind is also very many for the update speed of water tap.At present, the water tap on market, according to the difference of unfolding mode, mainly can be divided into rotary faucet, inductive water tap and touch-type water tap.
Rotary faucet is mechanized operation open and close due to it, not only operates inconvenience, and easily damages, and the intellectuality advocated with existing society, the qualityization degree of correlation of living is not high, therefore such water tap gradually eliminate by market.
Inductive water tap is mainly used in public place, effectively can eliminate health concerns.But also there is more inconvenience in it, once be its can not continuous effluent be applied in family time to seem very inconvenience, two is that it is when using in public place, the interference of other factors a lot of can be subject to, cause sensitivity not high, and easily damage, thus a large amount of water resource waste is fallen.
Touch-type water tap is the product newly gone out recent years.Relative to traditional rotary faucet, the operation of touch-type water tap is more convenient; Relative to inductive water tap, touch-type water tap stability is higher, and applicable situation is more, can continuous effluent.Therefore touch-type water tap is more and more by the favor of people.Touch-type water tap has become the R&D direction of swivel techniques.
Disclosed in Chinese patent literature, application number is the touch-type water tap of 201120140877.2, it comprises faucet body, control circuit, solenoid valve and power supply unit, faucet body, as touch sensor, accepts the touching signal of the extraneous change that electric capacity is produced; Control circuit by receive and process touching signal capacitance change signal processing unit, judge touching signal and send the microprocessing unit of control signal and identify that control signal the solenoid valve control circuit unit of Controlling solenoid valve switch form; Faucet body is arranged control circuit and solenoid valve; Control circuit is connected with solenoid valve; Power supply unit is connected with solenoid valve with control circuit respectively.Although this patent can realize touching water tap to control the break-make of water, but the capacitance variations value of water tap is very little when people touches water tap, only perception accuracy is carried out by the capacitance variations of water tap not high, and this water tap can not regulate the sensitivity touched, thus the reliability of this water tap touch control water break-make is not high.
Summary of the invention
There are the problems referred to above for existing technology in the utility model, proposes a kind of touch-control water tap, and this touch-control water tap technical problem to be solved how to improve the reliability that touching water tap controls water break-make.
The utility model is realized by following technical proposal: a kind of touch-control water tap, it is characterized in that, this touch-control water tap comprises master controller, touching controller, power supply circuits, for the metal faucet body of inductance capacitance can be formed when human body is touched and control the solenoid valve of water tap break-make, the input pin of described master controller is connected with the output pin of described touching controller, the signal according to master controller is connected with and the driving circuit for electromagnetic valve of Controlling solenoid valve action between the output pin of described master controller and described solenoid valve, described master controller, touching controller and driving circuit for electromagnetic valve are powered by power supply circuits, described metal faucet body is provided with for the sampling capacitance C1 that jointly form testing circuit in parallel with metal faucet body, the detection pin of described touch controller is for gathering the Capacity of above-mentioned testing circuit, this detection pin is connected with one end of metal faucet body and sampling capacitance C1, the other end ground connection of sampling capacitance C1, the reference pin of described touching controller is for setting Capacity reference value, this reference pin is connected with the reference capacitance C2 for determining Capacity reference value, described touching controller is used for the Capacity of testing circuit and Capacity reference value to compare draw Capacity difference and export trigger signal when Capacity difference is greater than the difference threshold touching controller inner setting, the sensitivity pin of described touching controller is for setting the size of difference threshold, this sensitivity pin is connected with resistance R1 and is connected with high level by resistance R1 or is connected with low level, the resistance of resistance R1 is by metal faucet body, sampling capacitance and reference capacitance three determine jointly.
Compared with prior art, in this touch-control water tap, the parallel connection of sampling capacitance C1 and metal faucet body forms a testing circuit and is jointly connected the detection pin touching controller, the Capacity reference value that the Capacity of testing circuit and reference capacitance C2 set compares and produces Capacity difference by touching controller, touch controller when Capacity difference is greater than difference threshold and export trigger signal, and difference threshold passes through the resistance of resistance R1 and resistance R1 connects high level or low level determines, in parallel with metal faucet body and adopt reference capacitance C2 to set Capacity reference value and regulate to touch sensitivity thus form an overall technological scheme by resistance R1 and solve above-mentioned technical problem by sampling capacitance C1, thus realize improving the object that touching water tap controls water break-make reliability.Wherein the resistance choosing value of resistance R1 is determined jointly by metal faucet body, sampling capacitance and reference capacitance three.An inductance capacitance is formed with metal faucet body after people touches metal faucet body, make the electric capacity quantitative change of testing circuit large, when the Capacity of testing circuit and Capacity reference value compare show that Capacity difference is greater than the difference threshold set time, touching controller exports high level and triggers master controller work to master controller, master controller outputs signal to driving circuit for electromagnetic valve, and driving circuit for electromagnetic valve Controlling solenoid valve is opened and made water discharge of water faucet.When people again touches metal faucet body and makes the difference of the Capacity of testing circuit and Capacity reference value be greater than difference threshold, main controller controls driving circuit for electromagnetic valve makes closed electromagnetic valve water discharge of water faucet.
In above-mentioned touch-control water tap, the Standard resistance range of described resistance R1 is 0 ~ 4M Ω.What the size of above-mentioned difference threshold was connected by resistance R1 is that high level or low level and its resistance determined.When resistance R1 connects high level, touching controller has larger difference threshold namely to touch the touching sensitivity of controller lower; When resistance R1 connects low level, touching controller has less difference threshold namely to touch the touching sensitivity of controller higher.The resistance of resistance R1 is determined jointly by the specification of faucet body, sampling capacitance size and reference capacitance size three.The scope of the resistance of above-mentioned resistance R1 is through test of many times and checking draws, no matter is that resistance R1 connects high level or connects low level in above-mentioned electronics R1 Standard resistance range, and touching controller all has a comparatively moderate touching sensitivity.Wherein when the resistance of resistance R1 is 2M Ω, touching controller has a best difference threshold, namely touches sensitivity best.
In above-mentioned touch-control water tap, the output pin of described touching controller is connected with for the pull-up resistor R2 of touching controller output pin bias voltage.Pull-up resistor R2 makes touching controller to export high level signal to touching controller output pin bias voltage.After increasing pull-up resistor R2, just without the pull-up resistor in master controller, be convenient to connection, the resistance of pull-up resistor R2 become the function that can play greatly power saving simultaneously.
In above-mentioned touch-control water tap, described solenoid valve is pulse-controlled electromagnetic valve, the output pin of described master controller comprises output pin one and output pin two, described driving circuit for electromagnetic valve comprises solenoid valve and opens control wiring and closed electromagnetic valve control wiring, described solenoid valve is opened control wiring and is comprised division module one and solenoid valve opening switch module, described closed electromagnetic valve control wiring comprises division module two and closed electromagnetic valve switch module, the input end of described division module one connects the output pin one of master controller, the input end of the output terminal connected electromagnetic valve opening switch module of division module one, the output terminal connected electromagnetic valve of solenoid valve opening switch module, the input end of described division module two connects the output pin two of master controller, the input end of the output terminal connected electromagnetic valve closing switch module of division module two, the output terminal connected electromagnetic valve of closed electromagnetic valve switch module.The output pin one of master controller export high level to division module one and output pin two output low level to division module two time, solenoid valve opening switch module action Controlling solenoid valve is opened, make water discharge of water faucet, otherwise, closed electromagnetic valve switch module action control closed electromagnetic valve.
In above-mentioned touch-control water tap, be provided with timing module in described master controller, described master controller exports control signal and opens control wiring and closed electromagnetic valve control wiring to solenoid valve, and after timing a period of time, automatic shutdown signal exports.Will keep the state after being energized after impulse electromagnetic valve only needs to power within a certain period of time, therefore master controller only need export the control signal of a period of time, so also can reach the object of power saving.
In above-mentioned touch-control water tap, described solenoid valve opening switch module comprises PNP type triode Q1, NPN type triode Q2 and resistance R3, one end of the base stage contact resistance R3 of described triode Q1, the negative pole of the other end connected electromagnetic valve of resistance R3 and the collector electrode of triode Q2, the emitter of described triode Q1 connects power supply circuits, the positive pole of the collector electrode connected electromagnetic valve of triode Q1, the grounded-emitter connection of described triode Q2, the base stage of triode Q2 connects division module one; Described closed electromagnetic valve switch module comprises PNP type triode Q3, NPN type triode Q4 and resistance R4, one end of the base stage contact resistance R4 of described triode Q3, the other end connected electromagnetic valve positive pole of resistance R4 and the collector electrode of triode Q4, the emitter of described triode Q3 connects power supply circuits, the collector electrode connected electromagnetic valve negative pole of triode Q3, the grounded-emitter connection of described triode Q4, the base stage of triode Q4 connects division module two.Triode Q2 conducting makes triode Q1 conducting, thus solenoid valve positive pole obtains electric-opening; Triode Q4 conducting makes triode Q3 conducting, thus solenoid valve negative pole obtains electric closedown.
In above-mentioned touch-control water tap, described solenoid valve is direct action solenoid valve, described circuit driven by electromagnetic means comprises relay, the coil of described relay connects master controller output pin one, normal open switch one end of described relay connects power supply circuits, the positive pole of the other end connected electromagnetic valve, the minus earth of solenoid valve.The normal open switch of master controller output signal control relay is closed makes solenoid valve obtain electric-opening, and when master controller does not export control signal, the normal open switch of relay remains open and makes closed electromagnetic valve.
In above-mentioned touch-control water tap, described power supply circuits have three road voltage output ends, described power supply circuits comprise power supply, transformation chip one, transformation chip two, polar capacitor C3, polar capacitor C4 and electric capacity C5, described positive source connects the input pin of transformation chip one and the positive pole of polar capacitor C3, transformation chip one exports after supply voltage transformation from output pin, the input pin of transformation chip two is connected the output pin of transformation chip one respectively with the positive pole of polar capacitor C4, export from output pin after the voltage transformation that transformation chip one sends by transformation chip two, one end of electric capacity C5 connects the output pin of transformation chip two, the negative pole of power supply, the negative pole of polar capacitor C3, the negative pole of polar capacitor C4 and the other end ground connection of electric capacity C5, positive source, the output pin of transformation chip one and the output pin of transformation chip two are three road voltage output ends of power supply circuits, the described emitter of positive source connecting triode Q1 and the emitter of triode Q3, the output pin of described transformation chip one connects the power pins of master controller, the output pin of described transformation chip two connects the power pins of touching controller, and for providing high level to the resistance R1 of touching controller.Power supply circuits have three voltage output ends and power to each circuit, and each circuit can normally be worked.
In above-mentioned touch-control water tap, the reseting module for controlling to touch controller reset is also provided with in described power supply circuits, described reseting module comprises resistance R5 and hand switch SW, described resistance R5 one end connects the output pin of transformation chip one, the other end connects the input pin of transformation chip two and one end of hand switch SW respectively, the other end ground connection of hand switch SW.After tap installs, need the acquisition to tap and enviromental parameter, resetted by reseting module to touching controller, touching controller automatically obtains tap and enviromental parameter or upgrades.
In above-mentioned touch-control water tap, described master controller is also connected with the supply voltage monitoring circuit for supply voltage monitoring, described supply voltage monitoring circuit comprises operational amplifier and division module three, described division module three input end connects positive source, the homophase input pin of the output terminal concatenation operation amplifier of division module three, the reversed input pin of operational amplifier connects the output pin of transformation chip two, the power input pin of operational amplifier connects the output pin of transformation chip one, the signal output pin of described operational amplifier connects master controller.By operational amplifier, the reference voltage that the voltage of power supply and transformation chip two export is compared, when supply voltage is less than the reference voltage of transformation chip two output, show that electric quantity of power supply is not enough.Supply voltage monitoring circuit can guarantee that this touch-control water tap carries out work when supply voltage is normal, thus forms with above-mentioned employing electric capacity C1, reference capacitance C2, resistance R1 and metal faucet body the reliability that an overall technological scheme makes touching water tap control water break-make each other and improve.
In above-mentioned touch-control water tap, described master controller also comprises output pin three, and the output pin three of described master controller is connected with for the too low Tip element of electric quantity of power supply.When electric quantity of power supply is not enough, Tip element sends prompting, makes people can change power supply in time, ensures the normal work of tap.
Compared with prior art, the utility model has the following advantages:
1, the utility model is by increasing sampling capacitance and reference electric capacity, thus judges more accurately, to improve the reliability of water tap touch-control to water tap touching perception.
2, the utility model has the selection of touching perceptual sensitivity, makes the touch-control of water tap be more applicable for actual life, increases the reliability of water tap touch-control.
3, the utility model has supply voltage monitoring circuit, the electricity of Real-Time Monitoring power supply, thus can ensure water tap normal operation, makes this touch-control water tap reliability strong.
Accompanying drawing explanation
Structural representation when Fig. 1 is resistance R1 connection low level;
Structural representation when Fig. 2 is resistance R1 connection high level.
In figure, 1, master controller; 2, controller is touched; 3, operational amplifier; 4, power supply; 5, transformation chip one; 6, transformation chip two; 7, metal faucet body; 8, solenoid valve one; 9, solenoid valve two.
Embodiment
Be below specific embodiment of the utility model, and by reference to the accompanying drawings the technical solution of the utility model be further described, but the utility model is not limited to these embodiments.
Embodiment one:
This touch-control water tap comprises master controller 1, touching controller 2, power supply circuits, solenoid valve for the metal faucet body 7 and control water tap break-make that can form inductance capacitance when human body touch as shown in Figure 1.The input pin of master controller 1 is connected with the output pin of described touching controller 2, be connected with according to the signal of master controller 1 driving circuit for electromagnetic valve of Controlling solenoid valve action between the output pin of master controller 1 and described solenoid valve, master controller 1, touching controller 2 and driving circuit for electromagnetic valve are powered by power supply circuits.
Metal faucet body 7 is provided with for the sampling capacitance C1 that jointly form testing circuit in parallel with metal faucet body 7, the detection pin of touch controller is for gathering the Capacity of above-mentioned testing circuit, this detection pin is connected with one end of metal faucet body 7 and sampling capacitance C1, the other end ground connection of sampling capacitance C1, the reference pin of touching controller 2 is for setting Capacity reference value, and this reference pin is connected with the reference capacitance C2 for determining Capacity reference value.Touching controller 2 draws Capacity difference for the Capacity of testing circuit and Capacity reference value being compared and exports trigger signal when Capacity difference is greater than the difference threshold touching controller 2 inner setting.The sensitivity pin of touching controller 2 is for setting the size of difference threshold, and this sensitivity pin is connected with resistance R1 and is connected with low level by resistance R1.The resistance of resistance R1 is determined jointly by metal faucet body 7, sampling capacitance and reference capacitance three, and the Standard resistance range of resistance R1 is 0 ~ 4M Ω, and the present embodiment is chosen resistance R1 resistance and chosen 0M Ω.
Select pulse-controlled electromagnetic valve as the switch of break-make water tap.The output pin of master controller 1 comprises output pin one and output pin two.Driving circuit for electromagnetic valve comprises solenoid valve and opens control wiring and closed electromagnetic valve control wiring, solenoid valve is opened control wiring and is comprised division module one and solenoid valve opening switch module, and closed electromagnetic valve control wiring comprises division module two and closed electromagnetic valve switch module.The input end of division module one connects the output pin one of master controller 1, the input end of the output terminal connected electromagnetic valve opening switch module of division module one, the output terminal connected electromagnetic valve of solenoid valve opening switch module, the input end of division module two connects the output pin two of master controller 1, the input end of the output terminal connected electromagnetic valve closing switch module of division module two, the output terminal connected electromagnetic valve of closed electromagnetic valve switch module.Be provided with timing module in master controller 1, described master controller 1 exports control signal and opens control wiring and closed electromagnetic valve control wiring to solenoid valve, and after timing a period of time, automatic shutdown signal exports.
Solenoid valve opening switch module comprises PNP type triode Q1, NPN type triode Q2 and resistance R3.One end of the base stage contact resistance R3 of triode Q1, the negative pole of the other end connected electromagnetic valve of resistance R3 and the collector electrode of triode Q2.The emitter of triode Q1 connects power supply circuits, the positive pole of the collector electrode connected electromagnetic valve of triode Q1, the grounded-emitter connection of triode Q2, and the base stage of triode Q2 connects division module one.
Closed electromagnetic valve switch module comprises PNP type triode Q3, NPN type triode Q4 and resistance R4.One end of the base stage contact resistance R4 of triode Q3, the other end connected electromagnetic valve positive pole of resistance R4 and the collector electrode of triode Q4.The emitter of triode Q3 connects power supply circuits, the collector electrode connected electromagnetic valve negative pole of triode Q3, the grounded-emitter connection of triode Q4, and the base stage of triode Q4 connects division module two.
Power supply circuits have three road voltage output ends.Power supply circuits comprise power supply 4, transformation chip 1, transformation chip 26, polar capacitor C3, polar capacitor C4 and electric capacity C5.Power supply 4 positive pole connects the input pin of transformation chip 1 and the positive pole of polar capacitor C3, transformation chip 1 exports after power supply 4 voltage transformation from output pin, the input pin of transformation chip 26 is connected the output pin of transformation chip 1 respectively with the positive pole of polar capacitor C4, export from output pin after the voltage transformation that transformation chip 1 sends by transformation chip 26, one end of electric capacity C5 connects the output pin of transformation chip 26, the negative pole of power supply 4, the negative pole of polar capacitor C3, the negative pole of polar capacitor C4 and the other end ground connection of electric capacity C5.The output pin of power supply 4 positive pole, transformation chip 1 and the output pin of transformation chip 26 are three road voltage output ends of power supply circuits.The emitter of power supply 4 positive pole connecting triode Q1 and the emitter of triode Q3.The output pin of transformation chip 1 connects the power pins of master controller 1.The output pin of transformation chip 26 connects the power pins of touching controller 2, and for providing high level to the resistance R1 of touching controller 2.
Also be provided with the reseting module for controlling to touch controller 2 reset in power supply circuits, reseting module comprises resistance R5 and hand switch SW.Resistance R5 one end connects the output pin of transformation chip 1, and the other end connects the input pin of transformation chip 26 and one end of hand switch SW respectively, the other end ground connection of hand switch SW.
Master controller 1 is also connected with the supply voltage monitoring circuit for supply voltage monitoring, and supply voltage monitoring circuit comprises operational amplifier 3 and division module three.Division module three input end connects power supply 4 positive pole, the homophase input pin of the output terminal concatenation operation amplifier 3 of division module three, the reversed input pin of operational amplifier 3 connects the output pin of transformation chip 26, the power input pin of operational amplifier 3 connects the output pin of transformation chip 1, and the signal output pin of operational amplifier 3 connects master controller 1.Master controller 1 also comprises output pin three, and the output pin three of master controller 1 is connected with for the too low Tip element of power supply 4 electricity, and Tip element comprises warning light.
Be connected with the electric capacity C6 for filter action between the output pin of transformation chip 1 and the power pins of master controller 1, one end of electric capacity C6 connects the output pin of transformation chip 1 and the power pins of master controller 1, the other end ground connection respectively.Be connected with the electric capacity C7 for filter action between the output pin of transformation chip 26 and the power pins of touching controller 2, one end of electric capacity C7 connects the output terminal of transformation chip and the power pins of touching controller 2, the other end ground connection respectively.The electric capacity C8 for filter action is also connected with between the output pin of transformation chip 1 and the power input pin of operational amplifier 3, one end of electric capacity C8 connects the output pin of transformation chip 1 and the power input pin of operational amplifier 3, the other end ground connection respectively.
Division module one comprises resistance R6 and resistance R7, and one end of resistance R6 connects master controller 11 output pin one, and the other end is one end of contact resistance R7 and the base stage of triode Q2 respectively, the other end ground connection of resistance R7.Division module two comprises resistance R8 and resistance R9, and one end of resistance R8 connects master controller 11 output pin two, and the other end is one end of contact resistance R9 and the base stage of triode Q4 respectively, the other end ground connection of resistance R9.Division module three comprises resistance R10 and resistance R11, and one end of resistance R10 connects power supply 4 positive pole, and the other end is one end of contact resistance R11 and the homophase input pin of operational amplifier 3 respectively, the other end ground connection of resistance R11.
Solenoid valve comprises the solenoid valve 1 for controlling water tap cold water break-make and the solenoid valve 29 for controlling water tap hot water break-make.
As preferably, touching controller 2 adopts model to be the condenser type hall sensing chip of TH01, this chip has the Capacity that can gather on its pin and Capacity is compared the function judging output signal, has the function that can regulate perceptual sensitivity simultaneously.
Below working principle of the present utility model:
Difference threshold in touching controller 2 determines the touching sensitivity of metal faucet body 7, resistance R1 is selected to connect low level in the present embodiment, therefore touch controller 2 and have a higher sensitivity, and the resistance of resistance R1 is 0M Ω, the difference threshold obtaining touching controller 2 inside is 2pF.
Under original state, when human body does not touch metal faucet body 7, the Capacity of testing circuit is the Capacity of sampling capacitance C1, therefore testing circuit compare with reference capacitance C2 after difference not change and both differences are less than difference threshold, now solenoid valve 1 and solenoid valve 29 keep closed tap water outlet.The Capacity that the difference of testing circuit and reference capacitance C2 refers to testing circuit deducts the difference of the Capacity of reference capacitance C2.
After people touches faucet body, form an inductance capacitance with faucet body, the size of inductance capacitance is determined by the area of contact of human body and faucet body, and the larger inductance capacitance of area of contact is larger.Now the Capacity of the testing circuit electric capacity that is sampling capacitance C1 and inductance capacitance and, the Capacity of touching circuit and Capacity reference value compare and show that Capacity difference becomes large by touching controller 2, when above-mentioned Capacity difference is greater than 2pF, touching controller 2 exports high level and triggers master controller 1 to master controller 1 and work, the output pin one of master controller 1 exports high level to division module one, and output pin two output low level of master controller 1 is to division module two.
Bias voltage is provided to make triode Q2 conducting to triode Q2 after the division module one high level dividing potential drop that namely master controller 1 exports by resistance R6 and resistance R7, after triode Q2 conducting, the collector voltage of triode Q2 declines, thus the base voltage of triode Q1 is declined, triode Q1 conducting.Now power supply 4 and path between solenoid valve 1 and solenoid valve 29 positive pole, and when triode Q2 conducting and connected the negative pole of solenoid valve 1 and solenoid valve 29.Therefore the positive pole of solenoid valve 1 and solenoid valve 29 has high level to flow into, solenoid valve 1 and the work of solenoid valve 29 forward, and the intake pipe of tap of namely fetching boiling water makes current flow out from faucet spout.After division module two receives the low level of master controller 1 output, triode Q3 and triode Q4 is by state.
Again touch faucet body when human body and compare in the Capacity of testing circuit and Capacity reference value when showing that Capacity difference is greater than 2pF, output pin one output low level of master controller 1 is to division module one, and the output pin two of master controller 1 exports high level to division module two.Bias voltage is provided to make triode Q4 conducting to triode Q4 after the division module two high level dividing potential drop that namely master controller 1 exports by resistance R8 and resistance R9, after triode Q4 conducting, the collector voltage of triode Q4 declines, thus the base voltage of triode Q3 is declined, triode Q3 conducting.Now power supply 4 and path between solenoid valve 1 and solenoid valve 29 negative pole, and the positive pole of solenoid valve 1 and solenoid valve 29 has been connected when triode Q3 conducting.Therefore the negative pole of solenoid valve 1 and solenoid valve 29 has high level to flow into, solenoid valve 1 and solenoid valve 29 reverse operation, and namely the intake pipe of closed tap makes current stop flowing out.After division module one receives low level, triode Q1 and triode Q2 is by state.
Because solenoid valve 1 and solenoid valve 29 are pulse-controlled electromagnetic valve, master controller 1 is therefore only needed to export the control level of certain hour.Master controller 1, by timing module timing, no longer sends control level to division module one and division module two after timing terminates, and solenoid valve 1 and solenoid valve 29 still keep the state after energising.As preferably, the time of master controller 1 output level is 50mS at every turn.
The voltage of supply voltage monitoring circuit Real-Time Monitoring power supply 4.The voltage of power supply 4 is input to operational amplifier 3 positive input pin after division module three dividing potential drop, the voltage of reversed input pin access transformation chip 26 output of operational amplifier 3, the output voltage of transformation chip 26 is as reference voltage, voltage after power supply 4 dividing potential drop and reference voltage compare by operational amplifier 3, when the voltage after power supply 4 dividing potential drop is lower than reference voltage, the level of the output pin output of operational amplifier 3 is by high step-down, after master controller 1 receives the low level signal of operational amplifier 3 transmission, master controller 1 output pin one output low level is to division module one, the output pin two of master controller 1 exports high level to division module two, shutoff current flow out, and no longer carry out opens solenoid valve 1 and solenoid valve 29 action.Simultaneously the output pin three of master controller 1 exports control signal and sends prompting to Tip element, thus is convenient to user and changes power supply 4 in time.
This touch-control water tap can reset to touching controller 2.When pressing hand switch SW, making transformation chip 26 short circuit, so there is no electric current and powering to touching controller 2.When after relieving hand switch SW, touching controller 2 re-powers reset, the parameter of Auto-matching environment and water tap.
When power supply circuits are powered, polar capacitor C3 not only plays filter action, and can voltage as a supplement when solenoid valve 1 and solenoid valve 29 have just started to be energized action; Polar capacitor C4 not only plays filter action and when power supply circuits are to master controller 1 and the initial power supply of operational amplifier 3, can voltage as a supplement.
Compared with prior art, in this touch-control water tap, the parallel connection of sampling capacitance C1 and metal faucet body 7 forms a testing circuit and is jointly connected the detection pin touching controller 2, the Capacity reference value that the Capacity of testing circuit and reference capacitance C2 set compares and produces Capacity difference by touching controller 2, touch controller 2 when Capacity difference is greater than difference threshold and export trigger signal, and difference threshold passes through the resistance of resistance R1 and resistance R1 connects high level or low level determines, in parallel with metal faucet body 7 and adopt reference capacitance C2 to set Capacity reference value and regulated by resistance R1 and touch sensitivity by sampling capacitance C1, the electricity of supply voltage monitoring circuit Real-Time Monitoring power supply 4 ensures that touch-control water tap works under normal electricity simultaneously, thus form an overall technological scheme and realize improving the object that touching water tap controls water break-make reliability.
Embodiment two:
The present embodiment is substantially identical with principle with the structure of embodiment one, and its difference is: resistance R1 connects high level as shown in Figure 2, now touches the difference threshold that controller 2 has 12pF.Touching controller 2 is greater than 12pF in the Capacity of testing circuit and the Capacity difference of reference capacitance to carry out triggering and exports high level to master controller 1.
Embodiment three:
The present embodiment is substantially identical with principle with the structure of embodiment one, and its difference is: the resistance of resistance R1 is 2M Ω, and touching controller 2 has the difference threshold of 4pF.Touching controller 2 is greater than 4pF in the Capacity of testing circuit and the Capacity difference of reference capacitance to carry out triggering and exports high level to master controller 1.The difference threshold of 4pF is the difference threshold of the best when resistance R1 connects low level.
Embodiment four:
The present embodiment is substantially identical with principle with the structure of embodiment one, and its difference is: the resistance of resistance R1 is 2M Ω, and touching controller 2 has the difference threshold of 4pF.Touching controller 2 is greater than 8pF in the Capacity of testing circuit and the Capacity difference of reference capacitance to carry out triggering and exports high level to master controller 1.The difference threshold of 8pF is the difference threshold of the best when resistance R1 connects high level.
Embodiment five:
The present embodiment is substantially identical with principle with the structure of embodiment one, its difference is: solenoid valve adopts directly driving type, electromagnetic drive unit comprises relay, the coil of relay connects master controller 1 output pin one, normal open switch one end of relay connects power supply circuits, the positive pole of the other end connected electromagnetic valve, the minus earth of solenoid valve.When master controller 1 drives solenoid valve open water tap water outlet, master controller 1 sends high level to relay, and the normal open switch of relay closes, and solenoid valve is obtained and electricly opens intake pipe, water discharge of water faucet; When master controller 1 drives closed electromagnetic valve water discharge of water faucet, master controller 1 sends low level to relay, and the normal open switch of relay disconnects, and makes solenoid valve dead electricity close intake pipe, water tap not water outlet.Need continue when in the present embodiment, master controller 1 control relay normal open switch closes to send high level to relay.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the term such as master controller 1, touching controller 2, operational amplifier 3, power supply 4, transformation chip 1, transformation chip 26, metal faucet body 7, solenoid valve 1, solenoid valve 29 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (10)
1. a touch-control water tap, it is characterized in that, this touch-control water tap comprises master controller (1), touching controller (2), power supply circuits, for the metal faucet body (7) of inductance capacitance can be formed when human body is touched and control the solenoid valve of water tap break-make, the input pin of described master controller (1) is connected with the output pin of described touching controller (2), the driving circuit for electromagnetic valve of Controlling solenoid valve action according to the signal of master controller (1) is connected with between the output pin of described master controller (1) and described solenoid valve, described master controller (1), touching controller (2) and driving circuit for electromagnetic valve are powered by power supply circuits, described metal faucet body (7) is provided with for the sampling capacitance C1 that jointly form testing circuit in parallel with metal faucet body (7), the detection pin of described touch controller is for gathering the Capacity of above-mentioned testing circuit, this detection pin is connected with one end of metal faucet body (7) and sampling capacitance C1, the other end ground connection of sampling capacitance C1, the reference pin of described touching controller (2) is for setting Capacity reference value, this reference pin is connected with the reference capacitance C2 for determining Capacity reference value, described touching controller (2) draws Capacity difference for the Capacity of testing circuit and Capacity reference value being compared and exports trigger signal when Capacity difference is greater than the difference threshold touching controller (2) inner setting, the sensitivity pin of described touching controller (2) is for setting the size of difference threshold, this sensitivity pin is connected with resistance R1 and is connected with high level by resistance R1 or is connected with low level, the resistance of resistance R1 is by metal faucet body (7), sampling capacitance and reference capacitance three determine jointly.
2. touch-control water tap according to claim 1, is characterized in that, the Standard resistance range of described resistance R1 is 0 ~ 4M Ω.
3. touch-control water tap according to claim 2, is characterized in that, the output pin of described touching controller (2) is connected with for the pull-up resistor R2 of touching controller (2) output pin bias voltage.
4. the touch-control water tap according to claim 1 or 2 or 3, it is characterized in that, described solenoid valve is pulse-controlled electromagnetic valve, the output pin of described master controller (1) comprises output pin one and output pin two, described driving circuit for electromagnetic valve comprises solenoid valve and opens control wiring and closed electromagnetic valve control wiring, described solenoid valve is opened control wiring and is comprised division module one and solenoid valve opening switch module, described closed electromagnetic valve control wiring comprises division module two and closed electromagnetic valve switch module, the input end of described division module one connects the output pin one of master controller (1), the input end of the output terminal connected electromagnetic valve opening switch module of division module one, the output terminal connected electromagnetic valve of solenoid valve opening switch module, the input end of described division module two connects the output pin two of master controller (1), the input end of the output terminal connected electromagnetic valve closing switch module of division module two, the output terminal connected electromagnetic valve of closed electromagnetic valve switch module.
5. touch-control water tap according to claim 4, it is characterized in that, described master controller is provided with timing module in (1), described master controller (1) exports control signal and opens control wiring and closed electromagnetic valve control wiring to solenoid valve, and after timing a period of time, automatic shutdown signal exports.
6. touch-control water tap according to claim 5, it is characterized in that, described solenoid valve opening switch module comprises PNP type triode Q1, NPN type triode Q2 and resistance R3, one end of the base stage contact resistance R3 of described triode Q1, the negative pole of the other end connected electromagnetic valve of resistance R3 and the collector electrode of triode Q2, the emitter of described triode Q1 connects power supply circuits, the positive pole of the collector electrode connected electromagnetic valve of triode Q1, the grounded-emitter connection of described triode Q2, the base stage of triode Q2 connects division module one; Described closed electromagnetic valve switch module comprises PNP type triode Q3, NPN type triode Q4 and resistance R4, one end of the base stage contact resistance R4 of described triode Q3, the other end connected electromagnetic valve positive pole of resistance R4 and the collector electrode of triode Q4, the emitter of described triode Q3 connects power supply circuits, the collector electrode connected electromagnetic valve negative pole of triode Q3, the grounded-emitter connection of described triode Q4, the base stage of triode Q4 connects division module two.
7. touch-control water tap according to claim 1, it is characterized in that, described solenoid valve is direct action solenoid valve, described circuit driven by electromagnetic means comprises relay, the coil of described relay connects master controller (1) output pin one, normal open switch one end of described relay connects power supply circuits, the positive pole of the other end connected electromagnetic valve, the minus earth of solenoid valve.
8. touch-control water tap according to claim 6, it is characterized in that, described power supply circuits have three road voltage output ends, described power supply circuits comprise power supply (4), transformation chip one (5), transformation chip two (6), polar capacitor C3, polar capacitor C4 and electric capacity C5, described power supply (4) positive pole connects the input pin of transformation chip one (5) and the positive pole of polar capacitor C3, transformation chip one (5) exports after power supply (4) voltage transformation from output pin, the input pin of transformation chip two (6) is connected the output pin of transformation chip one (5) respectively with the positive pole of polar capacitor C4, export from output pin after the voltage transformation that transformation chip one (5) sends by transformation chip two (6), one end of electric capacity C5 connects the output pin of transformation chip two (6), the negative pole of power supply (4), the negative pole of polar capacitor C3, the negative pole of polar capacitor C4 and the other end ground connection of electric capacity C5, power supply (4) positive pole, the output pin of transformation chip one (5) and the output pin of transformation chip two (6) are three road voltage output ends of power supply circuits, the emitter of described power supply (4) positive pole connecting triode Q1 and the emitter of triode Q3, the output pin of described transformation chip one (5) connects the power pins of master controller (1), the output pin of described transformation chip two (6) connects the power pins of touching controller (2), and for providing high level to the resistance R1 of touching controller (2).
9. touch-control water tap according to claim 8, it is characterized in that, the reseting module resetted for controlling touching controller (2) is also provided with in described power supply circuits, described reseting module comprises resistance R5 and hand switch SW, described resistance R5 one end connects the output pin of transformation chip one (5), the other end connects the input pin of transformation chip two (6) and one end of hand switch SW respectively, the other end ground connection of hand switch SW.
10. touch-control water tap according to claim 9, it is characterized in that, described master controller (1) is also connected with the supply voltage monitoring circuit for power supply (4) voltage monitoring, described supply voltage monitoring circuit comprises operational amplifier (3) and division module three, described division module three input end connects power supply (4) positive pole, the homophase input pin of the output terminal concatenation operation amplifier (3) of division module three, the reversed input pin of operational amplifier (3) connects the output pin of transformation chip two (6), the power input pin of operational amplifier (3) connects the output pin of transformation chip one (5), the signal output pin of described operational amplifier (3) connects master controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060791.7U CN204533727U (en) | 2015-01-28 | 2015-01-28 | A kind of touch-control water tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060791.7U CN204533727U (en) | 2015-01-28 | 2015-01-28 | A kind of touch-control water tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533727U true CN204533727U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520060791.7U Withdrawn - After Issue CN204533727U (en) | 2015-01-28 | 2015-01-28 | A kind of touch-control water tap |
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| Country | Link |
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| CN (1) | CN204533727U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595552A (en) * | 2015-01-28 | 2015-05-06 | 玉环联帮洁具制造有限公司 | Touch control water faucet |
| CN109899584A (en) * | 2019-01-24 | 2019-06-18 | 广州市迦元智能家居有限公司 | A kind of capacitive induction triggering tap and its touch-control control method, storage medium |
| CN109737231B (en) * | 2019-03-04 | 2024-01-12 | 江西省华辉厨房设备有限公司 | Intelligent tap circuit control device |
-
2015
- 2015-01-28 CN CN201520060791.7U patent/CN204533727U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595552A (en) * | 2015-01-28 | 2015-05-06 | 玉环联帮洁具制造有限公司 | Touch control water faucet |
| CN104595552B (en) * | 2015-01-28 | 2017-04-05 | 玉环联帮洁具制造有限公司 | A kind of touch-control tap |
| CN109899584A (en) * | 2019-01-24 | 2019-06-18 | 广州市迦元智能家居有限公司 | A kind of capacitive induction triggering tap and its touch-control control method, storage medium |
| CN109737231B (en) * | 2019-03-04 | 2024-01-12 | 江西省华辉厨房设备有限公司 | Intelligent tap circuit control device |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150805 Effective date of abandoning: 20170405 |