CN203309298U - Induction-type water-saving faucet - Google Patents
Induction-type water-saving faucet Download PDFInfo
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- CN203309298U CN203309298U CN2013203724858U CN201320372485U CN203309298U CN 203309298 U CN203309298 U CN 203309298U CN 2013203724858 U CN2013203724858 U CN 2013203724858U CN 201320372485 U CN201320372485 U CN 201320372485U CN 203309298 U CN203309298 U CN 203309298U
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Abstract
The utility model belongs to the technical field of electronic automatic control, and relates to an induction-type water-saving faucet. The induction-type water-saving faucet is technically characterized by comprising a 12V direct-current power supply, a radiofrequency oscillation circuit, a voltage-multiplying detection and filter circuit, a direct-current signal amplification circuit and an electromagnetic valve drive circuit. According to the induction-type water-saving faucet disclosed by the utility model, defects existing in a part of the existing products are overcome, and an operation of approaching an induction antenna by a hand is used as a control signal for automatically opening or closing the faucet instead of using a human body heat source as a signal source; according to the induction-type water-saving faucet, various defects are overcome, and the requirements of simple circuit structure, reliable working performance, production of all the circuits by using common electronic components, low cost and the like are met; the induction-type water-saving faucet can be widely used in the public places such as hotels, guesthouses, office buildings, public toilets, hospitals, passenger stations and airports, or used in areas with serious water shortage.
Description
Technical field
The utility model belongs to Electric automatic control and water-saving technology field, relates to a kind of induction type water-saving type water tap.
Background technique
In Japan of the seventies and the developed country such as American-European, induction tap is applied to public place successively.Because induction tap directly contacts water tap without staff, secondary pollution or bacterial cross-infection after can effectively preventing from washing one's hands, avoid the infection of disease; Stretch out one's hand with regard to water, the hand leaving water is just closed, thereby using water wisely is more than 30% effectively, and the area that is particularly suitable for serious water shortage is used.Because the technology of induction tap at that time is not mature enough, not sail right before the wind in development and universal process.
After the nineties, due to advancing by leaps and bounds of electronic technology, induction tap has been done a large amount of improvement technically.Power supply to the direct current supply future development, by 6V, 4.5V alkaline battery lithium cell till now, has been eliminated the doubt that people use Ac by Ac; In water tap, electromagnetic valve structure has carried out significant improvement, realized simple in structure, compact, withstand voltage, dismounting is easy to maintenance, plays open and close and finishes rapidly, power consumption is minimum; The infrared control module adopts the paster welding electronic component in a large number, greatly dwindles the volume of infrared control module, has micro-power consumption, waterproof, the advantage such as high temperature resistant.
At present, induction tap mainly contains following two kinds:
(1) shading type infrared rays auto-switch tap
When the people stretches out one's hand washing, infrared beam is blocked, water tap is automatically opened and is discharged water; Wash Bi Renli, time delay discharges water and automatically closed afterwards, cuts off the water in 15 seconds.
(2) infrared light reflection formula water conserving tap
The water saving circuit of infrared light reflection formula water conserving tap is distributed, is received the two large divisions, is placed in the both sides of water tap, and when having the people to scrub near water tap, its infrared beam is reflected, through reception, amplification, decoding output triggering solid-state relay, the tap of fetching boiling water.Wash complete people and walk, water tap is closed automatically.
The defect of portioned product existence now: adopt Alternating Current Power Supply to install inconvenient, power supply contacts the worry that electric shock is probably arranged with water; If had a power failure, cause and can not use; Infrared induction is subject to the impact of bias light and direct sunlight, causes the non-working condition down-flow water; Slow in reacting, during use, opening speed is slow, and the rear pass water time of finishing using can not be adjusted; The induction tap battery life of direct current supply is short, must often change battery; The artificial damage phenomenon is serious.
Above-mentioned numerous defect, caused many negative effects to the Consumer to a certain extent, the infrared induction water tap promoted and be affected to a certain extent.
Induction type water-saving type water tap described in the utility model not user's body heat source as signal source, but utilize staff near induction antenna as opening or the control signal of auto-closed water tap.Induction type water-saving type water tap circuit overcomes above-mentioned numerous defect, has realized that circuit structure is succinct, reliable working performance, circuit used all that the ordinary electronic components and parts are made, the requirement such as cheap.Induction type water-saving type water tap can be widely used in the public places such as hotel, hotel, office building, public lavatory, hospital, passenger station, airport, or uses in the area of serious water shortage.
Below describe induction type water-saving type water tap described in the utility model related relevant technologies content in implementation process in detail.
The model utility content
Goal of the invention and beneficial effect: induction type water-saving type water tap described in the utility model has overcome the defect that present portioned product exists, it not user's body heat source as signal source, but utilize staff near the control signal of induction antenna as automatic unlatching or auto-closed water tap.Induction type water-saving type water tap circuit has overcome numerous defects, has realized that circuit structure is succinct, reliable working performance, circuit used all that the ordinary electronic components and parts are made, the requirement such as cheap.Induction type water-saving type water tap can be widely used in the public places such as hotel, hotel, office building, public lavatory, hospital, passenger station, airport, or uses in areas of serious.
The circuit working principle: induction type water-saving type water tap is comprised of induction antenna TX, RF oscillatory circuit, voltage multiplying rectifier and eliminator, direct current signal amplification circuit, driving circuit for electromagnetic valve.It forms RF oscillatory circuit by NPN type triode BG1 and peripheral cell, and induction antenna is connected to the collector electrode of NPN type triode BG1.When there is no staff near near the induction antenna TX water tap, the vibrator circuit normal operation that NPN type triode BG1 forms, the now emitter of NPN type triode BG1 output radio-frequency voltage signal obtains DC control signal after commutation diode D1～D2 rectification, this DC control signal is through NPN type triode BG2 conducting, NPN type triode BG3 cut-off electromagnetic valve coil DCF is not worked, not water outlet of water tap without electricity;
When staff is arranged near near the induction antenna TX water tap, due to staff will increase induction antenna TX and " " between distributed capacity, and the increase of Capacity can reduce the amount of oscillator positive feedback until the vibrator circuit failure of oscillations, in case vibrator circuit failure of oscillation, the radio frequency rectification circuit is just no longer exported DC control signal, now NPN type triode BG2 will end, at this moment the base stage of NPN type triode BG3 is in high petential, make NPN type triode BG3 conducting, electromagnetic valve coil DCF must establish beginning work by cable, and water tap can there are flowing out at once.The capacity of filter capacitor C4 is determining electromagnetic valve coil DCF delay time, and its capacity is adjusted as required.
Technological scheme: induction type water-saving type water tap, it comprises 12V DC electrical source, RF oscillatory circuit, voltage multiplying rectifier and eliminator, direct current signal amplification circuit, driving circuit for electromagnetic valve, it is characterized in that:
RF oscillatory circuit: it is by induction antenna TX, NPN type triode BG1, oscillator coil L1, tunable capacitor C2, resistance R 1, capacitor C 1 and resistance R 2 form, the end of the base stage connecting resistance R1 of NPN type triode BG1 and an end of capacitor C 1, the anodal VCC of the other end connection circuit of resistance R 1, the other end connection circuit ground GND of capacitor C 1, the collector electrode of NPN type triode BG1 meets induction antenna TX, the end of oscillator coil L1 and the end of tunable capacitor C2, the anodal VCC of the other end connection circuit of oscillator coil L1, the emitter of NPN type triode BG1 connects the other end of tunable capacitor C2 and an end of resistance R 2, the other end connection circuit ground GND of resistance R 2,
Voltage multiplying rectifier and eliminator: it is by coupling capacitance C3, commutation diode D1, commutation diode D2 and filter capacitor C4 form, the emitter of the termination NPN type triode BG1 of coupling capacitance C3, the negative pole of another termination commutation diode D1 of coupling capacitance C3 and the positive pole of commutation diode D2, the anodal connection circuit ground GND of commutation diode D1, the negative pole of commutation diode D2 connects the positive pole of filter capacitor C4, the negative pole connection circuit ground GND of filter capacitor C4;
The direct current signal amplification circuit: it is comprised of NPN type triode BG2 and resistance R 3, the base stage of NPN type triode BG2 connects the negative pole of commutation diode D2, the collector electrode of NPN type triode BG2 is by the anodal VCC of resistance R 3 connection circuits, the emitter connection circuit ground GND of NPN type triode BG2;
Driving circuit for electromagnetic valve: it is comprised of NPN type triode BG3, electromagnetic valve coil DCF and protection diode D3, the base stage of NPN type triode BG3 connects the collector electrode of NPN type triode BG2, the collector electrode of NPN type triode BG3 connect electromagnetic valve coil DCF an end and and the positive pole of protection diode D3, the other end of electromagnetic valve coil DCF and and the anodal VCC of negative pole connection circuit of protection diode D3, the emitter connection circuit ground GND of NPN type triode BG3;
The 12V DC power anode is connected with circuit anode VCC, and the 12V DC power cathode is connected with circuit ground GND.
The accompanying drawing explanation
Accompanying drawing 1 is the circuit working schematic diagram of induction type water-saving type water tap, and in accompanying drawing 1, the material therefor of induction antenna and making method refer to embodiment.
Embodiment
Circuit working schematic diagram and accompanying drawing explanation according to the induction type water-saving type water tap shown in accompanying drawing 1, and according to annexation between components and parts in the described each several part circuit of model utility content, and the components and parts technical parameter described in mode of execution requires and the circuit production main points are implemented to realize the utility model, below in conjunction with embodiment, correlation technique of the present utility model is further described.
Component parameters is shown in components and parts title and technical parameter table
| No. haoHAO, element number | The components and parts title | Technical parameter | Quantity | Remarks |
| BG1 | NPN type triode | 2CS9018、β≥100 | 1 | Plastic packaging |
| BG2～BG3 | NPN type triode | 2CS9014、β≥200 | 2 | Plastic packaging |
| D1、D2 | Commutation diode | Glassivation, 1N60 | 2 | Or select 2AP10 |
| D3 | The protection diode | 1N4001 | 1 | Silicon rectifier diode |
| L1 | Oscillator coil | 3mH～4mH colour coding inductance | 1 | |
| R1 | Resistance | 1/8W?、10KΩ | 1 | Biasing resistor |
| R2 | Resistance | 1/8W、4.7KΩ | 1 | |
| R3 | Resistance | 1/8W、2.7KΩ | 1 | |
| C1 | Electric capacity | 0.01μF | 1 | Ceramic disc capacitor |
| C2 | Tunable capacitor | 5～20PF? | 1 | Oscillating capacitance |
| C3 | Electric capacity | 820PF | 1 | Capacity is unsuitable large |
| C4 | Filter capacitor | 3.3μF | 1 | Adjust as required capacity |
| TX | Induction antenna | Area>50mm * 40mm | 1 | Aluminium plate thickness 1mm |
| DCF | Solenoid valve | Model: DF0618L | 1 cover | Feedwater bore 15mm |
Circuit production main points and circuit debugging
The making of induction antenna TX: selecting thickness is 1mm aluminium sheet or copper sheet, requires the long 50mm of induction antenna size, wide 40mm;
Because of the circuit structure of induction type water-saving type water tap fairly simple, as long as the electronic parts and components performance of generally selecting is intact, and the components and parts annexation in accompanying drawing 1 is welded to specifications, physical connection line and welding quality are after careful inspection is correct, and circuit of the present utility model does not substantially need to carry out any debugging and can work;
The starting of oscillation of the big or small capable of regulating RF oscillatory circuit of tunable capacitor C2 capacity, two critical values of failure of oscillation, be mainly used in regulating the sensitivity of staff near the induction antenna distance; The capacity of filter capacitor C4 is determining the water discharge of water faucet time-delay closing time, adjusts according to actual needs its capacity; Distance of reaction is that 16～30cm is adjustable arbitrarily;
Oscillator coil L1 is the colour coding inductance, and inductance value is 3mH～4mH, if when the inductance value of oscillator coil L1 is greater than 4mH, for making RF oscillatory circuit starting of oscillation smoothly, should suitably increase the capacity of tunable capacitor C2;
Other dc point does not need debugging to work, induction type water-saving type water tap complete machine maximum operating currenbt≤160mA;
Applied hydraulic pressure is 0.05～0.6MPa; 0～45 ℃ of Environmental Conditions temperature; Environmental Conditions humidity 95%RH.
Claims (1)
1. induction type water-saving type water tap, it comprises 12V DC electrical source, RF oscillatory circuit, voltage multiplying rectifier and eliminator, direct current signal amplification circuit, driving circuit for electromagnetic valve, it is characterized in that:
Described RF oscillatory circuit is by induction antenna TX, NPN type triode BG1, oscillator coil L1, tunable capacitor C2, resistance R 1, capacitor C 1 and resistance R 2 form, the end of the base stage connecting resistance R1 of NPN type triode BG1 and an end of capacitor C 1, the anodal VCC of the other end connection circuit of resistance R 1, the other end connection circuit ground GND of capacitor C 1, the collector electrode of NPN type triode BG1 meets induction antenna TX, the end of oscillator coil L1 and the end of tunable capacitor C2, the anodal VCC of the other end connection circuit of oscillator coil L1, the emitter of NPN type triode BG1 connects the other end of tunable capacitor C2 and an end of resistance R 2, the other end connection circuit ground GND of resistance R 2,
Described voltage multiplying rectifier and eliminator are by coupling capacitance C3, commutation diode D1, commutation diode D2 and filter capacitor C4 form, the emitter of the termination NPN type triode BG1 of coupling capacitance C3, the negative pole of another termination commutation diode D1 of coupling capacitance C3 and the positive pole of commutation diode D2, the anodal connection circuit ground GND of commutation diode D1, the negative pole of commutation diode D2 connects the positive pole of filter capacitor C4, the negative pole connection circuit ground GND of filter capacitor C4;
Described direct current signal amplification circuit is comprised of NPN type triode BG2 and resistance R 3, the base stage of NPN type triode BG2 connects the negative pole of commutation diode D2, the collector electrode of NPN type triode BG2 is by the anodal VCC of resistance R 3 connection circuits, the emitter connection circuit ground GND of NPN type triode BG2;
Described driving circuit for electromagnetic valve is comprised of NPN type triode BG3, electromagnetic valve coil DCF and protection diode D3, the base stage of NPN type triode BG3 connects the collector electrode of NPN type triode BG2, the collector electrode of NPN type triode BG3 connect electromagnetic valve coil DCF an end and and the positive pole of protection diode D3, the other end of electromagnetic valve coil DCF and and the anodal VCC of negative pole connection circuit of protection diode D3, the emitter connection circuit ground GND of NPN type triode BG3;
Described 12V DC power anode is connected with circuit anode VCC, and the 12V DC power cathode is connected with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203724858U CN203309298U (en) | 2013-06-26 | 2013-06-26 | Induction-type water-saving faucet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203724858U CN203309298U (en) | 2013-06-26 | 2013-06-26 | Induction-type water-saving faucet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309298U true CN203309298U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203724858U Expired - Lifetime CN203309298U (en) | 2013-06-26 | 2013-06-26 | Induction-type water-saving faucet |
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| Country | Link |
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| CN (1) | CN203309298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292007A (en) * | 2013-06-26 | 2013-09-11 | 周芸 | Inductive water-saving water faucet |
-
2013
- 2013-06-26 CN CN2013203724858U patent/CN203309298U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292007A (en) * | 2013-06-26 | 2013-09-11 | 周芸 | Inductive water-saving water faucet |
| CN103292007B (en) * | 2013-06-26 | 2015-04-08 | 周芸 | Inductive water-saving water faucet |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |