CN204756088U - Infrared induction tap circuit - Google Patents
Infrared induction tap circuit Download PDFInfo
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- CN204756088U CN204756088U CN201520500611.2U CN201520500611U CN204756088U CN 204756088 U CN204756088 U CN 204756088U CN 201520500611 U CN201520500611 U CN 201520500611U CN 204756088 U CN204756088 U CN 204756088U
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Abstract
The utility model discloses an infrared induction tap circuit, including chip IC1, solenoid valve P, bidirectional thyristor Q1 and triode V1, solenoid valve P's one end connecting resistance R1, resistance R6, resistance R9, diode D2's positive pole, triode V2's projecting pole, electric capacity C1 and power VCC, solenoid valve P's the other end connect bidirectional thyristor Q1's a central electrode, and electric capacity C1's the other end, electric capacity C5, resistance R5, resistance R8, resistance R11, diode D1's negative pole and triode V1's projecting pole are connected to another central electrode of bidirectional thyristor Q1. The utility model discloses infrared induction tap circuit simple structure, components and parts are few, adopt the bidirectional thyristor to replace traditional relay structure, have solved relay mechanical contact not hard up ageing problem easily, have consequently that the cost of manufacture is low, convenient to use and a longe -lived advantage.
Description
Technical field
The utility model relates to a kind of induction tap, specifically a kind of infrared induction water tap circuit.
Background technique
The toilet of public place often has people and forgets that the situation that closed tap causes great lot of water resources to be wasted occurs, therefore people devise induction tap, when respond in one's hands in below time to fetch boiling water tap, staff leaves rear closedown, therefore, it is possible to save current greatly, but the most complex structure of induction tap controller in the market, source element is many, and mostly be relay construction, relay is due to its mechanical contact job specification, long-time use can cause contact aging, and the feature of communal bathroom to be exactly the stream of people larger, therefore damaging often appears in its water tap, make troubles to user.
Summary of the invention
The purpose of this utility model is the infrared induction water tap circuit providing a kind of structure simple, easy to carry, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme:
A kind of infrared induction water tap circuit, comprises chip IC 1, solenoid valve P, one end contact resistance R1 of bidirectional triode thyristor Q1 and triode V1, described solenoid valve P, resistance R6, resistance R9, the anode of diode D2, the emitter of triode V2, the other end of electric capacity C1 and power supply VCC, solenoid valve P connects a main electrode of bidirectional triode thyristor Q1, and another main electrode of bidirectional triode thyristor Q1 connects the other end of electric capacity C1, electric capacity C5, resistance R5, resistance R8, resistance R11, the negative electrode of diode D1 and the emitter of triode V1, the other end of resistance R1 connects the base stage of electric capacity C2 and triode V1, the other end contact resistance R2 of electric capacity C2, the other end contact resistance R3 of resistance R2 and the collector electrode of triode V2, the other end of resistance R3 connects the anode of diode D1, the other end of the negative electrode contact resistance R4 of diode D2 and electric capacity C3, the other end of electric capacity C3 connects the pin 1 of chip IC1, the other end of the other end contact resistance R5 of resistance R6 and the pin 3 of chip IC 1, the pin 4 contact resistance R7 of chip IC 1, the other end of the other end contact resistance R8 of resistance R7, resistance R10, the other end of electric capacity C4 and the pin 1 of chip IC 2, the other end of the other end contact resistance R11 of resistance R9 and the pin 3 of chip IC 2, the other end of resistance R10 connects the control pole of the other end of electric capacity C5 and the other end connection bidirectional thyristor Q1 of resistance R12, resistance R12.
As preferred version of the present utility model: the model of the chip IC 2 of described chip IC 1 is LM321.
As preferred version of the present utility model: described diode D1 is infrared-emitting diode, for diode D2 is infrared receiving diode.
Compared with prior art, the beneficial effects of the utility model are: the utility model infrared induction water tap circuit structure is simple, components and parts are few, bidirectional triode thyristor is adopted to replace traditional relay construction, solve relay mechanical contact and easily loosen aging problem, therefore there is the advantage that fabricating cost is low, easy to use and the life-span is long.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of infrared induction water tap circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of infrared induction water tap circuit, comprises chip IC 1, solenoid valve P, one end contact resistance R1 of bidirectional triode thyristor Q1 and triode V1, described solenoid valve P, resistance R6, resistance R9, the anode of diode D2, the emitter of triode V2, the other end of electric capacity C1 and power supply VCC, solenoid valve P connects a main electrode of bidirectional triode thyristor Q1, and another main electrode of bidirectional triode thyristor Q1 connects the other end of electric capacity C1, electric capacity C5, resistance R5, resistance R8, resistance R11, the negative electrode of diode D1 and the emitter of triode V1, the other end of resistance R1 connects the base stage of electric capacity C2 and triode V1, the other end contact resistance R2 of electric capacity C2, the other end contact resistance R3 of resistance R2 and the collector electrode of triode V2, the other end of resistance R3 connects the anode of diode D1, the other end of the negative electrode contact resistance R4 of diode D2 and electric capacity C3, the other end of electric capacity C3 connects the pin 1 of chip IC1, the other end of the other end contact resistance R5 of resistance R6 and the pin 3 of chip IC 1, the pin 4 contact resistance R7 of chip IC 1, the other end of the other end contact resistance R8 of resistance R7, resistance R10, the other end of electric capacity C4 and the pin 1 of chip IC 2, the other end of the other end contact resistance R11 of resistance R9 and the pin 3 of chip IC 2, the other end of resistance R10 connects the control pole of the other end of electric capacity C5 and the other end connection bidirectional thyristor Q1 of resistance R12, resistance R12.
The model of the chip IC 2 of chip IC 1 is LM321.Diode D1 is infrared-emitting diode, for diode D2 is infrared receiving diode.
Working principle of the present utility model is: the oscillator being made up of a 40kHz in circuit V1, V2, R1, C2, and it exports the infrared ray driving infrared tube D1 to send 40kHz.When staff reaches below water tap, received by infrared receiving diode D2 by the infrared rays that hand reflects. convert thereof into half-wave pulsating direct current signal.Positive input terminal 1 pin that this signal is coupled to first order amplifier IC1 through C3 amplifies, and negative terminal 3 pin of amplifier IC1 adds a little bias voltage, prevents small-signal from disturbing.The signal after amplifying is exported to becoming direct current signal by R7, C4 shaping and smoothing processing from 4 pin of amplifier IC1.1 pin delivering to second level amplifier IC2 compares and enlarges, and second level amplifier turn threshold is determined by R9, R11 dividing potential drop that its 3 pin negative input end is external.R10 is the positive feedback resistor of amplifier, jointly forms delay circuit with C4, C5, and when preventing the hand activity be detected, the interference of generation causes circut breaking.The bidirectional thyristor Q1 conducting when the 4 pin output high level of amplifier IC2, Controlling solenoid valve P opens, and water tap starts to discharge water, and staff leaves rear water tap and closes.
Claims (3)
1. an infrared induction water tap circuit, comprises chip IC 1, solenoid valve P, bidirectional triode thyristor Q1 and triode V1, is characterized in that, one end contact resistance R1 of described solenoid valve P, resistance R6, resistance R9, the anode of diode D2, the emitter of triode V2, the other end of electric capacity C1 and power supply VCC, solenoid valve P connects a main electrode of bidirectional triode thyristor Q1, and another main electrode of bidirectional triode thyristor Q1 connects the other end of electric capacity C1, electric capacity C5, resistance R5, resistance R8, resistance R11, the negative electrode of diode D1 and the emitter of triode V1, the other end of resistance R1 connects the base stage of electric capacity C2 and triode V1, the other end contact resistance R2 of electric capacity C2, the other end contact resistance R3 of resistance R2 and the collector electrode of triode V2, the other end of resistance R3 connects the anode of diode D1, the other end of the negative electrode contact resistance R4 of diode D2 and electric capacity C3, the other end of electric capacity C3 connects the pin 1 of chip IC1, the other end of the other end contact resistance R5 of resistance R6 and the pin 3 of chip IC 1, the pin 4 contact resistance R7 of chip IC 1, the other end of the other end contact resistance R8 of resistance R7, resistance R10, the other end of electric capacity C4 and the pin 1 of chip IC 2, the other end of the other end contact resistance R11 of resistance R9 and the pin 3 of chip IC 2, the other end of resistance R10 connects the control pole of the other end of electric capacity C5 and the other end connection bidirectional thyristor Q1 of resistance R12, resistance R12.
2. a kind of infrared induction water tap circuit according to claim 1, it is characterized in that, the model of the chip IC 2 of described chip IC 1 is LM321.
3. a kind of infrared induction water tap circuit according to claim 1, it is characterized in that, described diode D1 is infrared-emitting diode, and diode D2 is infrared receiving diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500611.2U CN204756088U (en) | 2015-07-13 | 2015-07-13 | Infrared induction tap circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500611.2U CN204756088U (en) | 2015-07-13 | 2015-07-13 | Infrared induction tap circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204756088U true CN204756088U (en) | 2015-11-11 |
Family
ID=54470795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520500611.2U Expired - Fee Related CN204756088U (en) | 2015-07-13 | 2015-07-13 | Infrared induction tap circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204756088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533822A (en) * | 2018-05-31 | 2018-09-14 | 湖南匡楚科技有限公司 | A kind of multiple exit energy-saving and purifying tap |
-
2015
- 2015-07-13 CN CN201520500611.2U patent/CN204756088U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533822A (en) * | 2018-05-31 | 2018-09-14 | 湖南匡楚科技有限公司 | A kind of multiple exit energy-saving and purifying tap |
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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: 20151111 Termination date: 20160713 |