CN205278510U - Indicate touch time delay automatic control water injection well choke - Google Patents
Indicate touch time delay automatic control water injection well choke Download PDFInfo
- Publication number
- CN205278510U CN205278510U CN201520984022.6U CN201520984022U CN205278510U CN 205278510 U CN205278510 U CN 205278510U CN 201520984022 U CN201520984022 U CN 201520984022U CN 205278510 U CN205278510 U CN 205278510U
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- resistance
- operational amplifier
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- water nozzle
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- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
- Domestic Plumbing Installations (AREA)
Abstract
The utility model relates to an indicate touch time delay automatic control water injection well choke, its characteristic includes: 12V DC power supply, indicate touch bleeder circuit, voltage comparison circuit, level power amplification and automatic control water injection well choke drive circuit, indicate touch time delay automatic control water injection well choke ward off the path in addition, core parts are operational amplifier in the circuit, the model that operational amplifier IC1 selected for use is CA3130, all other uses ordinary electronic components, it has, and circuit structure is simple, low in cost, easy maintenance's characteristics, user's mask have convenient operation, water injection well choke open or close finish rapidly, advantage such as power consumption is little. Indicate touch time delay automatic control water injection well choke is fit for using in occasions such as hotel, office building, hospital, terminal, airport, laboratories.
Description
Technical field
The utility model belongs to electronic auto-control technology field, is about a kind of finger-contact type time delay automatic water nozzle.
Background technology
At present, infrared ray control tap mainly contains two kinds:
1. blocking formula 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; Washing Bi Renti when leaving, time delay discharges water and automatically closes after a few second.
2. infrared ray control tap, the circuit of infrared ray control tap is divided into transmitting, receives two portions, and it is placed in the both sides of water tap, when staff is close to water tap, the infrared rays that infrared emission pipe 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 electromagnetism water valve finally by power driving circuit and fetches boiling water tap; When staff is away from water tap, receiving tube does not receive the optical signal of reflection, and driving circuit disconnects the power supply of electromagnetism water valve, and water tap is closed automatically.
Finger-contact type time delay automatic water nozzle described in the utility model separately wards off path, and in circuit, core parts are operational amplifier (CA3130), and all other uses ordinary electronic components and parts, and it has circuit structure feature simple, cheap, easy to maintenance; There is easy to operate, water nozzle in use beat and open or close advantages such as finishing rapidly, current consumption is little. Finger-contact type time delay automatic water nozzle is adapted at the occasions such as hotel, office building, hospital, Passenger Transport Terminal, airport, laboratory and uses, and the flow that its defect is water nozzle water outlet can not control.
Finger-contact type time delay automatic water nozzle described in the utility model involved necessary, key technology contents in implementation process is described below in detail.
Practical novel content
Goal of the invention and useful effect: finger-contact type time delay automatic water nozzle described in the utility model separately wards off path, in circuit, core parts are operational amplifier (CA3130), all other uses ordinary electronic components and parts, and it has circuit structure feature simple, cheap, easy to maintenance; There is easy to operate, water nozzle in use beat and open or close advantages such as finishing rapidly, current consumption is little. Finger-contact type time delay automatic water nozzle is adapted at the occasions such as hotel, office building, hospital, Passenger Transport Terminal, airport, laboratory and uses, and the flow that its defect is water nozzle water outlet can not control.
Circuit working principle: finger-contact type time delay automatic water nozzle described in the utility model, when finger touches touch electrode CM two tinsels simultaneously, be equivalent to access an equivalent resistance between two tinsels of touch electrode CM, its resistance is generally less than 0.5M ��, just be equivalent at resistance R1 two ends and connect a resistance, the 2nd pin end of oppisite phase current potential making operational amplifier IC1 is rapidly higher than the voltage of the 3rd pin of operational amplifier IC1, the high level causing its 6th pin to export excites enhancement type N-channel field effect transistor VT1 conducting, the On current of enhancement type N-channel field effect transistor VT1 makes automatically controlled water nozzle SZ drive coil to obtain electric starting working.
In finger-contact type time delay automatic water nozzle circuit, a dividing potential drop circuit is formed by touch electrode CM, resistance R1 and resistance R2, when finger touches touch electrode CM two tinsels simultaneously, at once the voltage distribution of dividing potential drop circuit is caused to change, the change of these voltages is compared by operational amplifier (CA3130), the level change of the 6th pin of operational amplifier IC1 will control conducting or the cut-off of enhancement type N-channel field effect transistor VT1, thus whether control automatic control water nozzle water outlet. Chemical capacitor C1, for maintaining the noble potential of the grid of enhancement type N-channel field effect transistor VT1, enables automatic control water nozzle maintain water outlet 6��12 second.
The resistance of suitable adjusting resistance R1 or resistance R2, the sensitivity of adjustable finger-contact type time delay automatic water nozzle work and reliability.
Technical scheme: finger-contact type time delay automatic water nozzle, it comprises 12V direct supply, finger-contact type dividing potential drop circuit, voltage comparator circuit, level power amplification and automatic control water nozzle driving circuit, it is characterised in that:
Finger-contact type dividing potential drop circuit: it is made up of touch electrode CM, resistance R1, resistance R2,2nd pin of one end of touch electrode CM and a termination operational amplifier IC1 of resistance R1, the other end of touch electrode CM is connected with circuit anode VCC with the other end of resistance R1,2nd pin of the one termination operational amplifier IC1 of resistance R2, the other end connection circuit ground GND of resistance R2;
Voltage comparator circuit: it is made up of resistance R3, resistance R4, resistance R5 and operational amplifier IC1, the model that operational amplifier IC1 selects is CA3130, the 7th pin connection circuit positive pole VCC of operational amplifier IC1, the 4th pin connection circuit ground GND of operational amplifier IC1, one end of operational amplifier IC1 the 3rd pin connecting resistance R3 and one end of resistance R4, the other end connection circuit positive pole VCC of resistance R3,6th pin of the other end connection circuit ground GND, the operational amplifier IC1 of resistance R4 connects the 3rd pin of operational amplifier IC1 by resistance R5;
Level power is amplified and automatic control water nozzle driving circuit: it is by resistance R6, chemical capacitor C1, enhancement type N-channel field effect transistor VT1, automatically controlled water nozzle SZ forms, 6th pin of operational amplifier IC1 connects the grid of enhancement type N-channel field effect transistor VT1 by resistance R6, the positive pole of chemical capacitor C1 connects the 6th pin of operational amplifier IC1, the negative pole connection circuit ground GND of chemical capacitor C1, the drain electrode of enhancement type N-channel field effect transistor VT1 connects one end that automatically controlled water nozzle SZ drives coil, automatically controlled water nozzle SZ drives the other end connection circuit positive pole VCC of coil, 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 the embodiment circuit working schematic diagram that the utility model provides a finger-contact type time delay automatic water nozzle.
Embodiment
According to the finger-contact type time delay automatic water nozzle 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 operational amplifier, the model selected is CA3130, direct insertion DIP specification, and operational amplifier IC1 is a kind of COMSP raceway groove amplifier, having very high input resistance and extremely low received current and high-speed computation performance, it is applicable to micro-signal input and its output voltage maximum value can reach 10mV.
VT1 is enhancement type N-channel field effect transistor, and the model selected is IRFZ22;
Resistance all selects 1/8W metal film resistor, and the resistance of resistance R1 is 620K ��, and the resistance of resistance R2 is 360K ��, and the resistance of resistance R3 is 180K ��, and the resistance of resistance R4 is 180K ��, and the resistance of resistance R5 is 1.2M ��;
C1 is chemical capacitor, and its containment is 47��220 �� F/25V, and capacity was determined according to the time delay time;
SZ is automatically controlled water nozzle, and the model selected is DF-1 direct supply type, and feedwater bore is 15mm, and operating voltage is 12V, maximum functional electric current is 160mA, and the electromagnetism water valve in automatic washing machine can be adopted to substitute;
12V is direct supply, it is desired to 12V direct supply maximum output current >=300mA, it is possible to use 12V DC voltage-stabilizing power supply.
Circuit production main points and circuit debugging
The making of touch electrode CM: using tinsel to make two electrodes, size is 10mm �� 8mm;
Because the circuit of finger-contact type time delay automatic water nozzle is relatively simple for structure, comparison is easy, as long as the electronic devices and components performance generally selected is intact, and connect relation according to the components and parts in Figure of description 1 and weld, physical connection line and welding quality are through carefully checking after correctly, and circuit of the present utility model only needs to carry out simple debugging and gets final product normal operation;
After circuit connects 12 direct supplys, the 3rd pin voltage of operation result of measurement amplifier IC1 should be 6V, when finger touches touch electrode CM two tinsels simultaneously, it is ensured that the current potential of the 2nd pin of operational amplifier IC1 is higher than the 3rd pin voltage of operational amplifier IC1;
Chemical capacitor C1, for maintaining the grid current potential of enhancement type N-channel field effect transistor VT1, enables automatic control water nozzle maintain water outlet 6��12 second.
Circuit structure design of the present utility model, components' placement; and its outward appearance profile design and size size etc. thereof 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)
1. a finger-contact type time delay automatic water nozzle, it comprises 12V direct supply, finger-contact type dividing potential drop circuit, voltage comparator circuit, level power amplification and automatic control water nozzle driving circuit, it is characterised in that:
Described finger-contact type dividing potential drop circuit is made up of touch electrode CM, resistance R1, resistance R2,2nd pin of one end of touch electrode CM and a termination operational amplifier IC1 of resistance R1, the other end of touch electrode CM is connected with circuit anode VCC with the other end of resistance R1,2nd pin of the one termination operational amplifier IC1 of resistance R2, the other end connection circuit ground GND of resistance R2;
Described voltage comparator circuit is made up of resistance R3, resistance R4, resistance R5 and operational amplifier IC1, the model that operational amplifier IC1 selects is CA3130, the 7th pin connection circuit positive pole VCC of operational amplifier IC1, the 4th pin connection circuit ground GND of operational amplifier IC1, one end of operational amplifier IC1 the 3rd pin connecting resistance R3 and one end of resistance R4, the other end connection circuit positive pole VCC of resistance R3,6th pin of the other end connection circuit ground GND, the operational amplifier IC1 of resistance R4 connects the 3rd pin of operational amplifier IC1 by resistance R5;
Level power amplification and automatic control water nozzle driving circuit are by resistance R6, chemical capacitor C1, enhancement type N-channel field effect transistor VT1, automatically controlled water nozzle SZ forms, 6th pin of operational amplifier IC1 connects the grid of enhancement type N-channel field effect transistor VT1 by resistance R6, the positive pole of chemical capacitor C1 connects the 6th pin of operational amplifier IC1, the negative pole connection circuit ground GND of chemical capacitor C1, the drain electrode of enhancement type N-channel field effect transistor VT1 connects one end that automatically controlled water nozzle SZ drives coil, automatically controlled water nozzle SZ drives the other end connection circuit positive pole VCC of coil, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984022.6U CN205278510U (en) | 2015-11-29 | 2015-11-29 | Indicate touch time delay automatic control water injection well choke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984022.6U CN205278510U (en) | 2015-11-29 | 2015-11-29 | Indicate touch time delay automatic control water injection well choke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205278510U true CN205278510U (en) | 2016-06-01 |
Family
ID=56063088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520984022.6U Expired - Fee Related CN205278510U (en) | 2015-11-29 | 2015-11-29 | Indicate touch time delay automatic control water injection well choke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205278510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276259A (en) * | 2015-11-29 | 2016-01-27 | 王志 | Finger touch type delay automatic control water faucet |
-
2015
- 2015-11-29 CN CN201520984022.6U patent/CN205278510U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276259A (en) * | 2015-11-29 | 2016-01-27 | 王志 | Finger touch type delay automatic control water faucet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20161129 |