CN205276412U

CN205276412U - Human body is close automatic washing unit of formula time delay male sex urinal

Info

Publication number: CN205276412U
Application number: CN201520922227.1U
Authority: CN
Inventors: 王志
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-17
Filing date: 2015-11-17
Publication date: 2016-06-01
Anticipated expiration: 2025-11-17

Abstract

The utility model discloses a human body is close automatic washing unit of formula time delay male sex urinal, its characteristic includes: 12V DC power supply, microwave detection circuit, signal recognition amplifier circuit, high level delay circuit and electromagnetic water valve power drive circuit, the microwave detection circuit in microwave detection module IC1 choose TWH9428 for use, signal recognition amplifier circuit IC2 in signal recognition and amplifier circuit choose TWH9429 for use. The utility model discloses utilizing the microwave detection module to establish the microwave electric field among a small circle at public latrine male sex's urinal, being dashed as the urinal by human body reflection echo signal and drench control signal, the automatic shutdown dashes and drenches after the human body leaves the time delay several seconds, dashes automatically at once when the human body is close the urinal and drenches, starts to dash and drenches rather than leave the back the people, the device has that circuit structure is succinct, sensitivity is high, leak towards the rate for zero, the effect of economizing on water characteristics such as obvious.

Description

Human body proximity formula time delay male sex's urinal automatic flushing device

Technical field

The utility model belongs to application of electronic technology field, is about a kind of human body proximity formula time delay male sex's urinal automatic flushing device.

Background technology

The public place automatic induction tap of male sex's urinal is equipped with infrared detector cell more, when there being human body near urinal, the infrared rays that human body sends is detected by it, opens by related circuit control electromagnetism water valve and discharges water, automatically closes electromagnetism water valve during unmanned use. Infrared detector cell is arranged in the plastics casing of near urinal or water tap a garnet panel, and infrared rays is penetrating by it, the public urinal service of a public place people in no particular order or many people; The most also be the control mode wasting most water source being exactly perennial draingage, no matter that is: having people or unmanned using, the tap water spray header on public urinal can uninterrupted shower.

Human body proximity formula time delay male sex's urinal automatic flushing device described in the utility model has used for reference the principle of work of the automatic induction tap of urinal, microwave detecting module (TWH9428) is utilized to set up microwave electric field among a small circle at public lavatory male sex's urinal, by human body reflection echo signal as the automatic shower control signal of urinal, automatic shower when achieving a people or many people successively use, when human body stops shower automatically after leaving the time delay several seconds. It and common urinal automatic flushing device are the difference is that, shower automatically at once during human body proximity urinal, instead of just start shower after people leaves, and the urine discharged when having stopped urine disturbs taste. This device has that circuit is simple for structure, highly sensitive, the leakage rate of rushing is zero, water-saving result obviously, the feature such as reliable working performance, cheap, long service life. Can be used for the public lavatory automatic showers of male sex's urinal such as hotel, hotel, office building, hospital, station, airport.

Detailed necessity that human body proximity formula time delay male sex's urinal automatic flushing device described in the utility model is involved in implementation process is described, key technology contents below.

Practical novel content

Goal of the invention and useful effect: human body proximity formula time delay male sex's urinal automatic flushing device described in the utility model has used for reference the principle of work of the automatic induction tap of urinal, microwave detecting module (TWH9428) is utilized to set up microwave electric field among a small circle at public lavatory male sex's urinal, by human body reflection echo signal as the automatic shower control signal of urinal, automatic shower when achieving a people or many people successively use, when human body stops shower automatically after leaving the time delay several seconds. It and common urinal automatic flushing device are the difference is that, shower automatically at once during human body proximity urinal, instead of just start shower after people leaves, and the urine discharged when having stopped urine disturbs taste. This device has that circuit is simple for structure, highly sensitive, the leakage rate of rushing is zero, water-saving result obviously, the feature such as reliable working performance, cheap, long service life.

Circuit working principle: human body proximity formula time delay male sex's urinal automatic flushing device is made up of microwave detecting module IC1 (inside modules comprises: the circuit such as Microwave emission, low-pass filtering, gating amplification) and annulus antenna TX. Microwave detecting module IC1 internal oscillator circuit produces the microwave signal of about 1000MHz, by annulus antenna TX radiation electric magnetic wave. Signal analysis and amplify that circuit amplifies IC circuit 2 (its inside comprises: power supply voltage stabilizing, gating amplification, soft startup, compare the circuit such as amplification, delay and running) by Signal analysis, chemical capacitor C1 and potentiometer RP forms. Time in microwave scanning probe region without human motion, the control output end O pin of Signal analysis amplification circuit IC2 exports lower level, and at this moment enhancement type N-channel field effect transistor VT1 ends, and makes electromagnetism water valve DCF coil electroless state.

When there being human body to move in microwave scanning useful range, external electromagnetic field around it will change, annulus antenna TX will detect human motion and produce electromagnetic field variation signal and feed back to microwave detecting module IC1 and carry out low pass process, make the signal output terminal O pin output low frequency voltage signal of microwave detecting module IC1. The low-frequency voltage signal exported due to microwave detecting module IC1 is not enough to promote electromagnetism water valve DCF coil working, do gating amplification so low-frequency voltage signal must amplify IC circuit 2 through Signal analysis and postpone to drive, then amplify the control output end 0 pin output high level of IC circuit 2 from Signal analysis, circuit finally uses 1 enhancement type N-channel field effect transistor VT1 to carry out high level power magnification for driving electromagnetism water valve DCF coil working.

Technical scheme: human body proximity formula time delay male sex's urinal automatic flushing device, it comprises 12V direct supply, microwave detection circuit, Signal analysis amplification circuit, high level time delay circuit and electromagnetism water valve power driving circuit, it is characterised in that:

Microwave detection circuit: it is made up of microwave detecting module IC1 and annulus antenna TX, the model that microwave detecting module IC1 selects is TWH9428, the Y pin of microwave detecting module IC1 and the YO of microwave detecting module IC1 connect the two ends of annulus antenna TX respectively, the VDD pin connection circuit positive pole VCC of microwave detecting module IC1, the B pin of microwave detecting module IC1 connects the positive pole of chemical capacitor C1, the VSS pin of microwave detecting module IC1 and the negative pole connection circuit ground GND of chemical capacitor C1, the O pin of microwave detecting module IC1 connects Signal analysis and amplifies circuit;

In Signal analysis and amplification circuit: the model that Signal analysis amplification IC circuit 2 is selected is TWH9429, the B pin of Signal analysis amplification IC circuit 2 connects the B pin of microwave detecting module IC1, the I pin of Signal analysis amplification IC circuit 2 connects the O pin of microwave detecting module IC1, the WO pin that Signal analysis amplifies IC circuit 2 connects one end of potentiometer RP and movable end thereof, the W pin of Signal analysis amplification IC circuit 2 connects the other end of potentiometer RP, Signal analysis amplifies the VDD pin connection circuit positive pole VCC of IC circuit 2, Signal analysis amplifies the VSS pin connection circuit ground GND of IC circuit 2, the O pin that Signal analysis amplifies IC circuit 2 connects high level time delay circuit,

High level time delay circuit: it is made up of resistance R1 and chemical capacitor C2, the O pin of Signal analysis amplification IC circuit 2 connects the positive pole of chemical capacitor C2 by resistance R1, the negative pole connection circuit ground GND of chemical capacitor C2;

Electromagnetism water valve power driving circuit: it is made up of enhancement type N-channel field effect transistor VT1, electromagnetism water valve DCF and switching diode D1, the grid of enhancement type N-channel field effect transistor VT1 connects the positive pole of chemical capacitor C2, the drain electrode of enhancement type N-channel field effect transistor VT1 connects one end of electromagnetism water valve DCF coil and the positive pole of switching diode D1, the other end of electromagnetism water valve DCF coil and the negative pole connection circuit positive pole VCC of switching diode D1, the source electrode connection circuit ground GND of enhancement type N-channel field effect transistor VT1;

The positive pole of 12V direct supply is connected with circuit anode VCC, and the negative pole of 12V direct supply is connected with circuit ground GND.

Accompanying drawing explanation

Accompanying drawing 1 is human body proximity formula time delay male sex's urinal automatic flushing device embodiment circuit working schematic diagram that the utility model provides.

Embodiment

According to the human body proximity formula time delay male sex's urinal automatic flushing device circuit working schematic diagram shown in accompanying drawing 1 and accompanying drawing explanation, and connect relation according in each several part circuit described in the novel content of practicality between components and parts, and the components and parts technical parameter described in enforcement mode requires that carrying out enforcement with circuit production main points can realize the utility model, is further described correlation technique of the present utility model below in conjunction with embodiment.

The technical parameter of components and parts and selection requirement

IC1 is microwave detecting module, and the model selected is TWH9428;

IC2 is that Signal analysis amplifies circuit, and the model selected is TWH9429;

VT1 is enhancement type N-channel field effect transistor, and the model selected is IRFZ22;

D1 is switching diode, and the model selected is 1N4148;

Resistance uses RTX-1/8W shaped metal membrane resistance, the resistance 36K �� of resistance R1, and RP selects solid potentiometer, and its resistance is 360K ��;

It is 25V aluminium shell chemical capacitor that C1 selects withstand voltage, and its capacity is 47 �� F; It is 25V aluminium shell chemical capacitor that C2 selects withstand voltage, and its capacity is 10 �� F;

DCF is electromagnetism water valve, and the model selected is DF0618L, and feedwater bore is 15mm.

Circuit production main points and circuit debugging

Annulus antenna TX can directly use the tours antenna with microwave induction controller TX982 products configuration; Or selecting diameter �� 1.5mm bare copper wire, enclose into �� 100��110mm opening annulus antenna, the two ends of annulus antenna are connected on Y pin and the YO pin of microwave detecting module IC1 respectively, replace oscillator coil with opening annulus antenna;

Must pay special attention to during welding electric iron shell must ground connection good, to avoid the induction voltage of alternating-current to puncture microwave induction controller IC1 internal electronic element.

The scope of human body proximity formula time delay male sex's urinal automatic flushing device can by regulating the resistance of potentiometer RP, and distance the best of detection human body is 0.4��0.8m, can shorten annulus antenna TX and reduce detection human body distance;

The time delay time, the utility model recommendation value was 4 seconds by regulating the size of chemical capacitor C2 capacity;

Maximum functional electric current��the 220mA of human body proximity formula time delay male sex's urinal automatic flushing device complete machine;

Applied hydraulic pressure is 0.05��0.6MPa; Environment for use humidity��90%; Environment for use temperature 0��45 DEG C.

Circuit structure design of the present utility model, components' placement; and the shape of its outward appearance and size size etc. are not all gordian techniquies of the present utility model; neither the claimed key technology contents of the utility model; because not affecting the utility model specific implementation process and the realization of the novel object of practicality, therefore do not illustrate one by one in the description.

Claims

1. human body proximity formula time delay male sex's automatic washing device for urinal, it comprises 12V direct supply, microwave detection circuit, Signal analysis amplification circuit, high level time delay circuit and electromagnetism water valve power driving circuit, it is characterised in that:

Described microwave detection circuit is made up of microwave detecting module IC1 and annulus antenna TX, the model that microwave detecting module IC1 selects is TWH9428, the Y pin of microwave detecting module IC1 and the YO of microwave detecting module IC1 connect the two ends of annulus antenna TX respectively, the VDD pin connection circuit positive pole VCC of microwave detecting module IC1, the B pin of microwave detecting module IC1 connects the positive pole of chemical capacitor C1, the VSS pin of microwave detecting module IC1 and the negative pole connection circuit ground GND of chemical capacitor C1, the O pin of microwave detecting module IC1 connects Signal analysis and amplifies circuit;

Described Signal analysis and amplification circuit, the model that Signal analysis amplification IC circuit 2 is selected is TWH9429, the B pin of Signal analysis amplification IC circuit 2 connects the B pin of microwave detecting module IC1, the I pin of Signal analysis amplification IC circuit 2 connects the O pin of microwave detecting module IC1, the WO pin that Signal analysis amplifies IC circuit 2 connects one end of potentiometer RP and movable end thereof, the W pin of Signal analysis amplification IC circuit 2 connects the other end of potentiometer RP, Signal analysis amplifies the VDD pin connection circuit positive pole VCC of IC circuit 2, Signal analysis amplifies the VSS pin connection circuit ground GND of IC circuit 2, the O pin that Signal analysis amplifies IC circuit 2 connects high level time delay circuit,

Described high level time delay circuit is made up of resistance R1 and chemical capacitor C2, and the O pin of Signal analysis amplification IC circuit 2 connects the positive pole of chemical capacitor C2 by resistance R1, the negative pole connection circuit ground GND of chemical capacitor C2;

Described electromagnetism water valve power driving circuit is made up of enhancement type N-channel field effect transistor VT1, electromagnetism water valve DCF and switching diode D1, the grid of enhancement type N-channel field effect transistor VT1 connects the positive pole of chemical capacitor C2, the drain electrode of enhancement type N-channel field effect transistor VT1 connects one end of electromagnetism water valve DCF coil and the positive pole of switching diode D1, the other end of electromagnetism water valve DCF coil and the negative pole connection circuit positive pole VCC of switching diode D1, the source electrode connection circuit ground GND of enhancement type N-channel field effect transistor VT1;

The positive pole of described 12V direct supply is connected with circuit anode VCC, and the negative pole of 12V direct supply is connected with circuit ground GND.