A kind of automatic flush valve circuit being formed by not gate
Technical field
The present invention relates to electronic circuit, specially refer to a kind of control circuit of flusher.
Background technology
In public lavatory, have urinating bucket, have induction type automatic flush valve on most of urinating buckets, this not only deducts the trouble of manual flushing to people, and can rinse in time urinating bucket, keeps the sanitation and hygiene of urinating bucket.But because using the circuit structure of flip-flop circuit and delay circuit combination, there is the shortcoming that circuit structure complexity and production cost are high in the control circuit of current induction type automatic flush valve.
Summary of the invention
The object of the invention is will be for induction type automatic flush valve provides a kind of control circuit consisting of not gate, and circuit structure is simple, reliable operation, and production cost is low, realizes cost saving.
A kind of automatic flush valve circuit being formed by not gate of the present invention, it is characterized in that automatic flush valve circuit is comprised of power circuit and control circuit, wherein, by power interface, power transformer (TC), commutation diode (V1) and filter capacitor (C1), form power circuit, power interface comprises power interface a(I) and power interface b(II), the primary coil of power transformer (TC) has line end a(1) and line end b(2) pick out, the secondary coil of power transformer (TC) has line end c(3) and line end d(4) pick out, by signaling interface (IV), isolating diode a(V2), isolating diode b(V3), time delay resistance (R1), delay capacitor (C2), not gate a(IC1), isolating diode c(V4), not gate b(IC2), drive resistance (R4), bidirectional triode thyristor (VS) and drive interface to form control circuit, drive interface to comprise and drive interface a(VI) and driving interface b(VII), the line end a(1 of power transformer (TC)) and line end b(2) be connected respectively to power interface a(I) and power interface b(II), the line end c(3 of power transformer (TC)) be connected to the anode of commutation diode (V1), after the negative electrode of commutation diode (V1) is connected with the positive pole of filter capacitor (C1), form working power (V+), the line end d(4 of power transformer (TC)) is connected with the negative pole of filter capacitor (C1) and forms afterwards ground wire, signaling interface (IV) is connected to isolating diode a(V2) anode and isolating diode b(V3) anode, isolating diode a(V2) negative electrode is connected to the first pin of time delay resistance (R1), the positive pole of delay capacitor (C2) and not gate a(IC1) input end, the negative pole of the crus secunda of time delay resistance (R1) and delay capacitor (C2) is connected to ground wire, not gate a(IC1) output terminal is connected to isolating diode c(V4) anode, isolating diode c(V4) negative electrode and isolating diode b(V3) negative electrode be connected to not gate b(IC2) input end, not gate b(IC2) output terminal is by driving resistance (R4) to be connected to the control utmost point of bidirectional triode thyristor (VS), the negative electrode of bidirectional triode thyristor (VS) is connected to ground wire, the anodic bonding of bidirectional triode thyristor (VS) is to driving interface b(VII), driving interface a(VI) be connected to the line end c(3 of power transformer (TC)).
In the present invention, between the negative pole of delay capacitor (C2) and ground wire, there is buffer resistance (R2), when having buffer resistance (R2) between the negative pole at delay capacitor (C2) and ground wire, the negative pole of delay capacitor (C2) is connected to ground wire by buffer resistance (R2); At not gate b(IC2) input end and ground wire between You Bang road resistance (R3); Automatic flush valve circuit has feeding interface (III) and interface of the ground wire (V), the outer relay part of signaling interface (IV) has human body sensor (D), on human body sensor (D), there are power end, output and ground, the power end of human body sensor (D) is connected to feeding interface (III), the output terminal of human body sensor (D) is connected to signaling interface (IV), and the earth terminal of human body sensor (D) is connected to interface of the ground wire (V); The outer solenoid valve (Y) that is with that drives interface, solenoid valve (Y) is alternating current electromagnetic valve, two terminals of solenoid valve (Y) coil are connected respectively to and drive interface a(VI) and drive interface b(VII).
The present invention is as the support circuit of induction type automatic flush valve, be arranged on the body of wall of urinating bucket top, wherein, solenoid valve (Y) is arranged between the flushing interface of running water pipe and urinating bucket, the power interface a(I in the present invention) and power interface b(II) be connected respectively to the phase line (L1) of power supply and the zero line (N) of power supply.When having people to walk close to urinating bucket, human body sensor (D) senses human body information, its output terminal just has high level to pass through isolating diode a(V2) be transported to not gate a(IC1) input end and the positive pole of delay capacitor (C2), high level is simultaneously by isolating diode b(V3) be input to not gate b(IC2) input end, to not gate b(IC2) block, make not gate b(IC2) output terminal keep low level, simultaneously, the high level of human body sensor (D) output terminal charges to delay capacitor (C2), when the charging on delay capacitor (C2) reaches the voltage of 2/3 working power (V+), not gate a(IC1) input end is high level, not gate a(IC1) output terminal is low level, carries out to rinse and prepares, when this people's urine is over while leaving, human body sensor (D) loses human body information, human body sensor (D) does not just have high level output, make not gate b(IC2) input end be low level, not gate b(IC2) output terminal is reversed to high level, bidirectional triode thyristor (VS) conducting, solenoid valve (Y) energising is opened, tap water rinses urinating bucket by solenoid valve (Y), after the several seconds, voltage on delay capacitor (C2) is when time delay resistance (R1) is discharged to the voltage of 1/3 working power (V+), not gate a(IC1) input end is low level, not gate a(IC1) output terminal is high level, not gate a(IC1) high level of output terminal is by isolating diode c(V4) be transported to not gate b(IC2) input end, make not gate b(IC2) output terminal be reversed to low level, bidirectional triode thyristor (VS) cut-off, solenoid valve (Y) power-off is closed.When someone comes urine again, induction type automatic flush valve circuit just repeats above-mentioned action, realizes automatic flushing function.
In above-mentioned invention, by determining that the resistance of time delay resistance (R1) and the electric capacity of delay capacitor (C2) are 5-8 second the set of time of solenoid valve energising, then by determining that the resistance of buffer resistance (R2) is come, the charged set of time of delay capacitor (C2), be 1-2 second, delay capacitor (C2) charge to the time of 2/3 working power (V+) or time that delay capacitor (C2) is discharged to 1/3 working power (V+) definite by t=0.693RC.
In above-mentioned invention, not gate a(IC1), not gate b(IC2) use cmos digital integrated circuit, specifically select six ungated integrated circuits of CC40106 model, four unnecessary not gates are parallel to not gate b(IC2) upper use, or with unnecessary not gate wherein two, form transmission gates and be connected to signaling interface (IV) and isolating diode a(V2) anode, isolating diode b(V3) anode between, unnecessary another two not gates are parallel to not gate b(IC2) on; The power end of ungated integrated circuit is connected to working power (V+), and the earth terminal of ungated integrated circuit is connected to ground wire.Cmos digital integrated circuit is a kind of desirable micropower circuit, and interface circuit is simple, the strong anti-interference performance of circuit, and input impedance is high, is generally 10
8Ω, therefore, application cmos digital integrated circuit makes automatic flush valve circuit structure of the present invention simple, and reliable operation.
The invention has the beneficial effects as follows: for induction type automatic flush valve provides, a kind of circuit structure is simple, the control circuit of reliable operation, and production cost is low, realizes cost saving.
Accompanying drawing explanation
Fig. 1 is a kind of automatic flush valve circuit diagram consisting of not gate of the present invention.
Fig. 2 is the automatic flush valve circuit diagram that another kind of the present invention consists of not gate.
In figure: R1. time delay resistance, R2. buffer resistance, R3.Bang road resistance, R4. drive resistance, C1. filter capacitor, C2. delay capacitor, V1. commutation diode, V2. isolating diode a, V3. isolating diode b, V4. isolating diode c, VS. bidirectional triode thyristor, V+. working power, IC1. not gate a, IC2. not gate b, IC3. not gate c, IC4. not gate d, TC. power transformer, FU. fuse, D. human body sensor, Y. solenoid valve, 1. line end a, 2. line end b, 3. line end c, 4. line end d, I. power interface a, II. power interface b, III. feeding interface, IV. signaling interface, V. interface of the ground wire, VI. drive interface a, VII. drive interface b, L1. the phase line of power supply, N. the zero line of power supply.
Embodiment
embodiment 1in embodiment shown in Fig. 1, a kind of automatic flush valve circuit consisting of not gate is comprised of power circuit and control circuit, wherein, by power interface, power transformer (TC), commutation diode (V1) and filter capacitor (C1), form power circuit, power interface comprises power interface a(I) and power interface b(II), the primary coil of power transformer (TC) has line end a(1) and line end b(2) pick out, the secondary coil of power transformer (TC) has line end c(3) and line end d(4) pick out, by signaling interface (IV), isolating diode a(V2), isolating diode b(V3), time delay resistance (R1), delay capacitor (C2), buffer resistance (R2), not gate a(IC1), isolating diode c(V4), be close to road resistance (R3), not gate b(IC2), drive resistance (R4), bidirectional triode thyristor (VS) and drive interface to form control circuit, drive interface to comprise and drive interface a(VI) and driving interface b(VII), the line end a(1 of power transformer (TC)) and line end b(2) be connected respectively to power interface a(I) and power interface b(II), the line end c(3 of power transformer (TC)) be connected to the anode of commutation diode (V1), after the negative electrode of commutation diode (V1) is connected with the positive pole of filter capacitor (C1), form working power (V+), the line end d(4 of power transformer (TC)) is connected with the negative pole of filter capacitor (C1) and forms afterwards ground wire, signaling interface (IV) is connected to isolating diode a(V2) anode and isolating diode b(V3) anode, isolating diode a(V2) negative electrode is connected to the first pin of time delay resistance (R1), the positive pole of delay capacitor (C2) and not gate a(IC1) input end, the crus secunda of time delay resistance (R1) is connected to ground wire, the negative pole of delay capacitor (C2) is connected to ground wire by buffer resistance (R2), not gate a(IC1) output terminal is connected to isolating diode c(V4) anode, isolating diode c(V4) negative electrode and isolating diode b(V3) negative electrode be connected to not gate b(IC2) the first pin of input end He Bang road resistance (R3), the crus secunda that is close to road resistance (R3) is connected to ground wire, not gate b(IC2) output terminal is by driving resistance (R4) to be connected to the control utmost point of bidirectional triode thyristor (VS), the negative electrode of bidirectional triode thyristor (VS) is connected to ground wire, the anodic bonding of bidirectional triode thyristor (VS) is to driving interface b(VII), driving interface a(VI) be connected to the line end c(3 of power transformer (TC)).In the present embodiment, not gate a(IC1), not gate b(IC2) use cmos digital integrated circuit, specifically select six ungated integrated circuits of CC40106 model, four unnecessary not gates are parallel to not gate b(IC2) the upper (not shown) of using, the power end of ungated integrated circuit is connected to working power (V+), and the earth terminal of ungated integrated circuit is connected to ground wire; By determining that the resistance of time delay resistance (R1) and the electric capacity of delay capacitor (C2) are 5-8 second the set of time of solenoid valve energising, then by determining that the resistance of buffer resistance (R2) is come, the charged set of time of delay capacitor (C2), be 1-2 second, delay capacitor (C2) charge to the time of 2/3 working power (V+) or time that delay capacitor (C2) is discharged to 1/3 working power (V+) definite by t=0.693RC; Automatic flush valve circuit has feeding interface (III) and interface of the ground wire (V), the outer relay part of signaling interface (IV) has human body sensor (D), on human body sensor (D), there are power end, output and ground, the power end of human body sensor (D) is connected to feeding interface (III), the output terminal of human body sensor (D) is connected to signaling interface (IV), and the earth terminal of human body sensor (D) is connected to interface of the ground wire (V); The outer solenoid valve (Y) that is with that drives interface, solenoid valve (Y) is alternating current electromagnetic valve, two terminals of solenoid valve (Y) coil are connected respectively to and drive interface a(VI) and drive interface b(VII).
The present embodiment is as the support circuit of induction type automatic flush valve, be arranged on the body of wall of urinating bucket top, wherein, solenoid valve (Y) is arranged between the flushing interface of running water pipe and urinating bucket, the power interface a(I in the present embodiment) and power interface b(II) be connected respectively to the phase line (L1) of power supply and the zero line (N) of power supply.When having people to walk close to urinating bucket, human body sensor (D) senses human body information, its output terminal just has high level to pass through isolating diode a(V2) be transported to not gate a(IC1) input end and the positive pole of delay capacitor (C2), high level is simultaneously by isolating diode b(V3) be input to not gate b(IC2) input end, to not gate b(IC2) block, make not gate b(IC2) output terminal keep low level, simultaneously, the high level of human body sensor (D) output terminal charges to delay capacitor (C2), through 1-2 after second, charging on delay capacitor (C2) reaches the voltage of 2/3 working power (V+), not gate a(IC1) input end is high level, not gate a(IC1) output terminal is low level, carries out to rinse and prepares, when this people's urine is over while leaving, human body sensor (D) loses human body information, human body sensor (D) does not just have high level output, make not gate b(IC2) input end be low level, not gate b(IC2) output terminal is reversed to high level, bidirectional triode thyristor (VS) conducting, solenoid valve (Y) energising is opened, tap water rinses urinating bucket by solenoid valve (Y), through 5-8 after second, voltage on delay capacitor (C2) is discharged to the voltage of 1/3 working power (V+) through time delay resistance (R1), not gate a(IC1) input end is low level, not gate a(IC1) output terminal is high level, not gate a(IC1) high level of output terminal is by isolating diode c(V4) be transported to not gate b(IC2) input end, make not gate b(IC2) output terminal be reversed to low level, bidirectional triode thyristor (VS) cut-off, solenoid valve (Y) power-off is closed.When someone comes urine again, induction type automatic flush valve circuit just repeats above-mentioned action, realizes automatic flushing function.
embodiment 2in embodiment shown in Fig. 2, on the basis of the first embodiment, with unnecessary not gate wherein two, form transmission gates and be connected to signaling interface (IV) and isolating diode a(V2) anode, isolating diode b(V3) anode between, unnecessary another two not gates are parallel to not gate b(IC2) go up (not shown); Signaling interface (IV) is connected to not gate c(IC3) input end, not gate c(IC3) output terminal is connected to not gate d(IC4) input end, not gate d(IC4) output terminal be connected to isolating diode a(V2) anode and isolating diode b(V3) anode; During work, not gate d(IC4) output terminal is synchronized with not gate c(IC3) input end.Other structure and effect are basically the same as those in the first embodiment, and repeat no more.