CN202493762U

CN202493762U - Novel faucet control device

Info

Publication number: CN202493762U
Application number: CN2012201051740U
Authority: CN
Inventors: 陈秀华; 黄永福
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-20
Filing date: 2012-03-20
Publication date: 2012-10-17
Anticipated expiration: 2022-03-20

Abstract

The utility model relates to a novel faucet control device. The novel faucet control device comprises a temperature signal acquisition circuit, an infrared modulation transmitting circuit and a single chip microcomputer control circuit, wherein an output signal of the temperature signal acquisition circuit is transmitted to an A/D (Analog/Digital) data conversion circuit by an operation amplifying circuit; an output signal of the infrared modulation transmitting circuit is transmitted to an audio decoding circuit with a phase-locked loop by an amplifying circuit; and output signals of the A/D data conversion circuit and the audio decoding circuit with the phase-locked loop are sent to an electromagnetic valve driving circuit by control of the single chip microcomputer control circuit. The novel faucet control device has the advantages that a reflection type is adopted for infrared control, and when a person walks up to an electromagnetic valve faucet, the faucet can be automatically opened for discharging water without using hands, so that the novel faucet control device can be used for occasions, such as washing rooms or public toilets of hospitals and stations where cross infection easily happens; and when the water temperature is over-high or over-low, the electromagnetic valve is automatically closed without discharging water, so that the personal safety is guaranteed, and the purposes of water use safety and water conservation are achieved.

Description

A kind of new type water tap control gear

Technical field

The utility model relates to a kind of control gear, particularly be a kind of new type water tap control gear.

Background technique

Water tap has been widely used in thousand tame users, but traditional water tap automatic controller, can only only limit to the recloser at water source, can not control water temperature, because water temperature is too high, will scalds and touch staff, and cause health wound etc.

The model utility content

The purpose of the utility model is to overcome above-mentioned deficiency, and a kind of new type water tap control gear is provided.

The utility model solves the technological scheme that its technical problem adopted: a kind of new type water tap control gear; Comprise temperature signal collection circuit, infrared modulated emitting circuit and single chip machine controlling circuit; The output signal of said temperature signal collection circuit through operational amplification circuit transfer to D data converting circuit; The output signal of infrared modulated emitting circuit transfers to the audio decoder of band phaselocked loop through amplification circuit, said A the output signal of data converting circuit and the audio decoder of band phaselocked loop be sent to driving circuit for electromagnetic valve through single chip machine controlling circuit control.

Said temperature signal collection circuit comprises the resistance 1R1-1R4 that temperature transducer TK and output terminal thereof connect, diode D1, capacitor C1.

Said operational amplification circuit adopts AD623 operational amplifier IC1.

Said infrared modulated emitting circuit connects infrared-emitting diode VD1 by infrared emission triode VT1 output terminal and constitutes, and by placing the phototriode VT2 of water tap the same side to receive the infrared emission light velocity with infrared-emitting diode VD1.

Said amplification circuit adopts UA741 amplifier IC3.

The audio decoder of said band phaselocked loop adopts the audio coding IC 4 of LM567 band phaselocked loop, and wherein the VCO signal of audio coding IC 4 outputs of LM567 band phaselocked loop is connected to the base stage of infrared emission triode VT1 through resistance R 1.

Through adopting above-mentioned technological scheme, the beneficial effect of the utility model is: the infrared control of the utility model is reflective, when the people walks close to the solenoid valve water tap; Need not to start, water tap is just opened automatically and is discharged water, and can be used for easy cross infection occasions such as hospital, Rest Room, station or public lavatory; When water temperature is too high or on the low side; This device automatically shuts down solenoid valve and no longer discharges water, thereby guarantees personal safety, reaches safe water, water-saving purpose.

Description of drawings

Fig. 1 is the frame assumption diagram of the utility model;

Fig. 2 is the circuit theory diagrams of the utility model.

Embodiment

Like Fig. 1, shown in Figure 2; A kind of new type water tap control gear of the utility model; Comprise temperature signal collection circuit 1, infrared modulated emitting circuit 2 and single chip machine controlling circuit 3; The output signal of said temperature signal collection circuit 1 through operational amplification circuit 11 transfer to D data converting circuit 12; The output signal of infrared modulated emitting circuit 2 transfers to the audio decoder 22 of band phaselocked loop through amplification circuit 21, said A the output signal of data converting circuit 12 and the audio decoder 22 of band phaselocked loop be sent to driving circuit for electromagnetic valve 31 through single chip machine controlling circuit 3 controls.

Said temperature signal collection circuit 1 comprises the resistance 1R1-1R4 that temperature transducer TK and output terminal thereof connect, and it is outside that temperature transducer TK is installed and connected in the water pipe water outlet, diode D1; Capacitor C1, said operational amplification circuit 11 adopts AD623 operational amplifier IC1, when water temperature reaches certain value; Temperature transducer TK produces faint d. c. voltage signal, and this signal is through resistance 1R1 current limliting, after the capacitor 1C1 filtering; Be input to the 3rd pin of AD623 operational amplifier IC1, after the inner amplification of AD623 operational amplifier IC1 (changing resistance R 5 can regulate magnification factors), by the higher direct signal of the 6th pin output of AD623 operational amplifier IC1; Be convenient to voltage data conversion, this signal be input to D the 2nd pin input end of data transfer chip IC 2, through D signal is input to after the data transfer the 36th, 37,38 pin of single-chip microcomputer IC; Through single-chip microcomputer IC read D the voltage data of data transfer chip IC 2 for surpassing 45 ℃ of setting values, through single-chip microcomputer IC internal processes handle judge after, by the 4th pin output high level of single-chip microcomputer IC; Make triode Q1 conducting through resistance R 10 current limlitings; Relay J 1 adhesive, its normally opened contact J1-1 also transfers normally closed point to, promotes solenoid valve and turn-offs water supply.

Said infrared modulated emitting circuit 2 connects infrared-emitting diode VD1 by infrared emission triode VT1 output terminal and constitutes; And by placing the phototriode VT2 of water tap the same side to receive the infrared emission light velocity with infrared-emitting diode VD1; Said amplification circuit 21 adopts UA741 amplifier IC3; The audio decoder 22 of said band phaselocked loop adopts the audio coding IC 4 of LM567 band phaselocked loop, and it includes the corresponding cymoscope of quadrature, corresponding locking ring and amplification circuit etc.External resistance R 7, the capacitor C 3 of its 5th, 6 pin determined the CF center frequency of phaselocked loop internal voltage controlled oscillator; External capacitor C 4, the C5 of the 1st, 2 pin of the audio coding IC 4 of LM567 band phaselocked loop is used to export filtering and phaselocked loop lower pass-filter, and capacitor C 4 can determine the pullin banwidth of phase locked loop.Wherein the VCO signal of audio coding IC 4 the 5th pin output of LM567 band phaselocked loop is connected to the base stage of infrared emission triode VT1 through resistance R 1; Infrared modulated emitting circuit 2 is modulated, made infrared-emitting diode VD1 send infrared pulse.At ordinary times, do not have infrared light pulse to throw the optical transmission window to phototriode VT2, phototriode VT2 does not have photoelectric current and produces; The output of the audio coding IC 4 of LM567 band phaselocked loop is high level, and late-class circuit is not had influence.

When the people came to wash one's hands, to phototriode VT2, phototriode VT2 produced the photoelectric conversion effect to human body, and the electric current enlarge-effect is arranged with the infrared modulated pulse-echo.The signal of phototriode VT2 output is connected to the amplifier of being made up of UA741 amplifier IC3 and resistance R 6 etc. after triode VT3 amplifies, the signal after the amplification transfers to the 3rd pin signal input part of the audio coding IC 4 of LM567 band phaselocked loop through capacitor C 2; Low level is transmitted in the 8th pin output of the audio coding IC 4 of LM567 band phaselocked loop, and this signal is input to single-chip microcomputer IC the 33rd pin I/O end, single-chip microcomputer IC detect scanning read A the temperature transition data of data transfer chip IC 2 when reaching normal value; After single-chip microcomputer IC internal processes is handled judgement; The 4th pin output low level by single-chip microcomputer IC is ended triode Q1, and relay J 1 discharges; Normally opened contact J1-1 also transfers normal battle to; The promotion solenoid valve is opened and is supplied water, and after the people left, the 4th pin of single-chip microcomputer IC was exported high level again; Promote solenoid valve and turn-off water supply, reach safe water, water-saving purpose.

An above-described preferred embodiment that is merely the utility model can not limit the scope that the utility model is implemented, and every equalization of being done according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.

Claims

1. new type water tap control gear; It is characterized in that: comprise temperature signal collection circuit (1), infrared modulated emitting circuit (2) and single chip machine controlling circuit (3); The output signal of said temperature signal collection circuit (1) through operational amplification circuit (11) transfer to D data converting circuit (12); The output signal of infrared modulated emitting circuit (2) transfers to the audio decoder (22) of band phaselocked loop through amplification circuit (21), said A the output signal of data converting circuit (12) and the audio decoder (22) of band phaselocked loop be sent to driving circuit for electromagnetic valve (31) through single chip machine controlling circuit (3) control.

2. a kind of new type water tap control gear according to claim 1 is characterized in that: said temperature signal collection circuit (1) comprises the resistance 1R1-1R4 that temperature transducer TK and output terminal thereof connect, diode D1, capacitor C1.

3. a kind of new type water tap control gear according to claim 1 is characterized in that: said operational amplification circuit (11) adopts AD623 operational amplifier IC1.

4. a kind of new type water tap control gear according to claim 1; It is characterized in that: said infrared modulated emitting circuit (2) connects infrared-emitting diode VD1 by infrared emission triode VT1 output terminal and constitutes, and by placing the phototriode VT2 of water tap the same side to receive the infrared emission light velocity with infrared-emitting diode VD1.

5. a kind of new type water tap control gear according to claim 1 is characterized in that: said amplification circuit (21) adopts UA741 amplifier IC 3.

6. a kind of new type water tap control gear according to claim 4; It is characterized in that: the audio decoder of said band phaselocked loop (22) adopts the audio coding IC 4 of LM567 band phaselocked loop, and wherein the VCO signal of audio coding IC 4 outputs of LM567 band phaselocked loop is connected to the base stage of infrared emission triode VT1 through resistance R 1.