CN105179781A

CN105179781A - Induction time-delay faucet

Info

Publication number: CN105179781A
Application number: CN201510662067.6A
Authority: CN
Inventors: 周芸
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-10-11
Filing date: 2015-10-11
Publication date: 2015-12-23

Abstract

The invention discloses an induction time-delay faucet. The induction time-delay faucet is characterized in that the induction time-delay faucet comprises a 12V direct-current power supply, a microwave induction and detecting circuit and a monostable time-delay and electronic control faucet driving circuit; the model of a microwave induction controller IC2 in the microwave induction and detecting circuit is TX982; the monostable time-delay and electronic control faucet driving circuit is composed of a time-base circuit IC1, a resistor R1, a timing capacitor C1 and an electronic control faucet, and the model of the time-base circuit IC1 is NE555. According to the induction time-delay faucet, a new path is found; the induction time-delay faucet is made of common electronic components completely; the induction time-delay faucet has the advantages of being simple in structure, low in manufacturing cost, capable of withstanding voltage and convenient to repair, and being convenient to operate, sanitary and low in power consumption and the like in the aspect of usage; the faucet is suitable for the occasions such as hotels, office buildings, hospitals, passenger stations and airports.

Description

Induction delay water faucet

Technical field

The invention belongs to electronics and water-saving technology field, relate to a kind of induction delay water faucet.

Background technique

Due to advancing by leaps and bounds of electronic technology, infrared rays automatic faucet has done a large amount of improvement technically.The power supply of water tap to direct current supply future development, after using DC electrical source instead, eliminates the misgivings that people use 220V Ac by 220V Ac.

At present, main flow infrared ray control tap mainly contains two kinds:

1. shading type infrared rays auto-switch tap, when people stretches out one's hand washing, blocked by infrared beam, water tap is automatically opened and is discharged water; Wash Bi Renti when leaving, time delay discharges water and automatically closes afterwards for several seconds.

2. infrared ray control tap, the circuit of infrared ray control tap is divided into be sent out, receives two-part, and be placed in the both sides of water tap, when staff is close to water tap, the infrared rays that infrared transmitting tube sends reflexes to infrared receiving tube through staff, receiving tube is automatically converted to electrical signal after receiving the optical signal of reflection, amplifies further through subsequent conditioning circuit, controls electromagnetic water valve to fetch boiling water tap finally by drive circuit; When staff is away from water tap, receiving tube does not receive the optical signal of reflection, and drive circuit disconnects electromagnetic water valve power supply, and water tap is closed automatically.

Induction delay water faucet of the present invention looks for another way, induction delay water faucet all uses ordinary electronic components and parts to make, it is simple, cheap, withstand voltage, easy to maintenance that it has structure, there is the advantages such as easy to operate, health, power consumption are little in use, this water tap is adapted at the occasions such as hotel, office building, hospital, passenger station, airport and uses, and its shortcoming is that water flow size can not control.

Below describe in detail induction delay water faucet of the present invention necessity involved in implementation process, guardian technique content.

Summary of the invention

Goal of the invention and beneficial effect: induction delay water faucet of the present invention looks for another way, induction delay water faucet all uses ordinary electronic components and parts to make, it is simple, cheap, withstand voltage, easy to maintenance that it has structure, have the advantages such as easy to operate, health, power consumption are little in use, this water tap is adapted at the occasions such as hotel, office building, hospital, passenger station, airport and uses.

Circuit working principle: induction delay water faucet is worked by 12V direct-current power supply microwave induction controller IC2 (TX982) and time base circuit IC1.It can be arranged on the top of pond or Male urinal, when microwave antenna has detected people at guarded region, then microwave electric field can produce reflection echo, faint frequency-shift signaling is gone out through electronic circuit mixing post-detection, this signal is through the single-chip microcomputer process of microwave induction controller IC2 inside, again by the triode ON of inside a few second, fallen by the 2nd pin output low level of the microwave induction controller IC2 charge discharging resisting be enough to timing capacitor C1 of holding time.Form monostable time delay circuit by time base circuit IC1, when the 2nd pin of base IC circuit 1 is lower than 1/3 direct current power source voltage at that time, the 3rd pin of time base circuit IC1 exports high level Direct driver electric-controlled tap SLT and discharges water.

The monostable time delay circuit be made up of resistance R1 and timing capacitor C1, its delay time about 1 ~ 2 second.If after leaving with water people, monostable time delay circuit cuts off the power supply of electric-controlled tap SLT automatically; If do not left with water with water people always, microwave induction controller IC2 will trigger single stabilization delay circuit work repeatedly, makes the 3rd pin of time base circuit IC1 export high level incessantly, makes electric-controlled tap SLT keep the state of discharging water always.

Technical characteristics: induction delay water faucet, it comprises 12V DC electrical source, microwave induced and detecting circuit, monostable time delay and electric-controlled tap drive circuit, it is characterized in that:

Microwave induced and detecting circuit: the model that microwave induction controller IC2 adopts is TX982, the 1st pin connection circuit positive pole VCC of microwave induction controller IC2,2nd pin of microwave induction controller IC2 connects the 2nd pin and the 6th pin of time base circuit IC1, the 3rd pin connection circuit ground GND of microwave induction controller IC2, the two ends of loop antenna TX connect the antenna terminal of microwave induction controller IC1 respectively;

Monostable time delay and electric-controlled tap drive circuit: it is by time base circuit IC1, resistance R1, timing capacitor C1 and electric-controlled tap composition, the model that time base circuit IC1 adopts is NE555, 4th pin of time base circuit IC1 and the 8th pin connection circuit positive pole VCC, 2nd pin of time base circuit IC1 is connected with one end of resistance R1 and the positive pole of timing capacitor C3 with the 6th pin, the other end connection circuit positive pole VCC of resistance R1, 1st pin of time base circuit IC1 and the negative pole connection circuit ground GND of timing capacitor C1, 3rd pin of time base circuit IC1 connects one end of electric-controlled tap drive coil, the other end connection circuit ground GND of electric-controlled tap drive coil,

The positive pole connection circuit positive pole VCC of 12V DC electrical source, the negative pole connection circuit ground GND of 12V DC electrical source.

Accompanying drawing explanation

Accompanying drawing 1 is embodiment's circuit working schematic diagram of induction delay water faucet.

Embodiment

According to the induction delay water faucet circuit working schematic diagram shown in accompanying drawing 1 and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in summary of the invention, and components and parts technical parameter described in mode of execution requires and circuit production main points are carried out enforcement and can be realized the present invention, is further described correlation technique of the present invention below in conjunction with embodiment.

The technical parameter of components and parts and selection requirement

IC1 is time base circuit, and the model selected is NE555 or LM555, and packing forms is dual inline type 8 pin; Each pin function: the 1st pin connection circuit ground GND; 2nd pin is trigger end; 3rd pin output terminal; 4th pin preset end; 5th pin is control voltage; 6th pin thresholding (threshold value); 7th pin is discharge end; 8th pin meets positive source VCC;

IC2 is microwave induction controller, and the model selected is that TX982, TX982 inside contains microprocessor, the operating voltage 6 ~ 15V of microwave induction controller IC2; 1st pin (red line) of microwave induction controller IC2 connects DC power anode, 2nd pin (white wire) of microwave induction controller IC2, the 3rd pin (copper mesh line or other colo(u)r streak) of microwave induction controller IC2 connects DC power cathode;

Resistance R1 selects 1/4W metal film resister, and its resistance is 56K Ω;

C1 is timing capacitor, selects capacity to be the electrochemical capacitor of 2.2 μ F/25V;

SLT is electric-controlled tap, and its model selected is: DF0618L, and feedwater bore 15mm, the VDC of electric-controlled tap SLT coil is l2V, maximum operating currenbt is 120mA, power is about 2W, and the electromagnetic water valve in automatic washing machine also can be adopted to replace.

Circuit production main points and circuit debugging

Because the circuit structure responding to delay water faucet is fairly simple, as long as the electronic parts and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present invention only needs to debug simply and can normally work;

Should be specifically noted that during welding electric soldering iron shell must ground connection good, puncture microwave induction controller IC2 internal electronic element to avoid the induced voltage of Ac!

Loop antenna TX directly can use the loop antenna configured with microwave induction controller TX982 product;

The time delay length of monostable time delay circuit, can the resistance of regulating resistance R1, or regulates the capacity of timing capacitor C1;

Body sense ultimate range >=the 5m of microwave induction controller IC2; The size of loop antenna TX can be reduced as required, to reduce body sense distance.

Circuit structure design of the present invention, components' placement; and the shape of its outward appearance and size etc. are not all key technologies of the present invention; neither application claims protection guardian technique content; because not affecting the realization of specific implementation process of the present invention and goal of the invention, therefore do not illustrate one by one in the description.

Claims

1. respond to a delay water faucet, it comprises 12V DC electrical source, microwave induced and detecting circuit, monostable time delay and electric-controlled tap drive circuit, it is characterized in that:

In described microwave induced and detecting circuit, the model that microwave induction controller IC2 adopts is TX982, the 1st pin connection circuit positive pole VCC of microwave induction controller IC2,2nd pin of microwave induction controller IC2 connects the 2nd pin and the 6th pin of time base circuit IC1, the 3rd pin connection circuit ground GND of microwave induction controller IC2, the two ends of loop antenna TX connect the antenna terminal of microwave induction controller IC1 respectively;

Described monostable time delay and electric-controlled tap drive circuit are by time base circuit IC1, resistance R1, timing capacitor C1 and electric-controlled tap composition, the model that time base circuit IC1 adopts is NE555, 4th pin of time base circuit IC1 and the 8th pin connection circuit positive pole VCC, 2nd pin of time base circuit IC1 is connected with one end of resistance R1 and the positive pole of timing capacitor C3 with the 6th pin, the other end connection circuit positive pole VCC of resistance R1, 1st pin of time base circuit IC1 and the negative pole connection circuit ground GND of timing capacitor C1, 3rd pin of time base circuit IC1 connects one end of electric-controlled tap drive coil, the other end connection circuit ground GND of electric-controlled tap drive coil,

The positive pole connection circuit positive pole VCC of described 12V DC electrical source, the negative pole connection circuit ground GND of 12V DC electrical source.