CN204536791U - A kind of automatic hand-washer control circuit - Google Patents
A kind of automatic hand-washer control circuit Download PDFInfo
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- CN204536791U CN204536791U CN201520281739.4U CN201520281739U CN204536791U CN 204536791 U CN204536791 U CN 204536791U CN 201520281739 U CN201520281739 U CN 201520281739U CN 204536791 U CN204536791 U CN 204536791U
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Abstract
The utility model discloses a kind of automatic hand-washer control circuit, comprise rectifier bridge Q, fuse FU, transformer T, three terminal regulator U1, chip U2, chip U3 and chip U4.The utility model automatic hand-washer control circuit is in holding state when nobody uses, the electricity of demand is extremely low, and using chip NE555, it and peripheral cell form mono-stable timing circuit, not only control sensitive, staff is taken away and namely can be cut off water outlet immediately, and when staff deviate from ultrared investigative range once in a while, also can ensure the normal water outlet of hand washer, structure is simple, cost is low, is applicable to promoting the use of.
Description
Technical field
The utility model relates to a kind of control circuit, specifically a kind of automatic hand-washer control circuit.
Background technology
The toilet in present a lot of high-grade place is all provided with automatic hand-washer, hand is only needed to be placed on below water swivel, automatically water outlet can be responded to, although this automatic hand-washer greatly facilitates people, now most of automatic hand-washer internal control circuits are on the market all for on-state always, waste electric energy greatly, and respond to delayed, hand washer can not be closed in time time hand is got back, cause the waste of water resource, also have the defects such as induction range is little in addition.
Utility model content
The purpose of this utility model is to provide the automatic hand-washer control circuit that a kind of circuit structure is simple, energy-saving and water-saving, induction range are large, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of automatic hand-washer control circuit, comprises rectifier bridge Q, fuse FU, transformer T, three terminal regulator U1, chip U2, chip U3 and chip U4, described fuse FU one end connects 220V alternating current, the 220V alternating current other end connects electromagnetic water valve Y and transformer T coil L1 respectively, the transformer T coil L1 other end connects the fuse FU other end and relay J contact J-1 respectively, the relay J contact J-1 other end connects the electromagnetic water valve Y other end, described transformer T coil L2 two ends connect rectifier bridge Q pin 1 and pin 3 respectively, and rectifier bridge Q pin 2 is contact resistance R1 respectively, electric capacity C1 and three terminal regulator U1 pin 1, rectifier bridge Q pin 4 be connecting luminous diode D1 negative pole respectively, the electric capacity C1 other end, three terminal regulator U1 pin 3, electric capacity C2, triode VT1 emitter, chip U2 pin 2, electric capacity C3, electric capacity C4, chip U3 pin 7 and electric capacity C5 ground connection, the light emitting diode D1 positive pole contact resistance R1 other end, the described electric capacity C2 other end connects three terminal regulator U1 pin 2 respectively, potentiometer RP, potentiometer RP slide plate, chip U2 pin 1, chip U3 pin 4, resistance R2, relay J coil, diode D4 negative pole, chip U4 pin 4 and chip U4 pin 8, chip U2 pin 3 connects chip U3 pin 3 by electric capacity C8, the described resistance R2 other end connects chip U3 pin 5 and chip U4 pin 2 respectively, chip U3 pin 1 connects the electric capacity C3 other end, chip U3 pin 2 connects the electric capacity C4 other end, chip U3 pin 6 connects the electric capacity C5 other end, chip U3 pin 8 contact resistance R3, resistance R3 other end connecting triode VT1 base stage, triode VT1 collector connects infrared-emitting diode D2 negative pole, infrared-emitting diode D2 positive pole connects the potentiometer RP other end, described diode D4 positive pole connects the relay J coil other end and triode VT2 collector respectively, triode VT2 grounded emitter, triode VT2 base stage contact resistance R4, resistance R4 other end connecting luminous diode D3 negative pole, light emitting diode D3 positive pole connects chip U4 pin 3, chip U4 pin 1 ground connection, chip U4 pin 5 connects direct earth capacitance C6, chip U4 pin 6 connects direct earth capacitance C7 and chip U4 pin 7 respectively.
As further program of the utility model: described three terminal regulator U1 model is 7806.
As further program of the utility model: described chip U2 model is SFH506-38.
As further program of the utility model: described chip U3 model is LM567.
As the utility model further scheme: described chip U4 model is NE555.
Compared with prior art, the beneficial effects of the utility model are: the utility model automatic hand-washer control circuit is in holding state when nobody uses, and the electricity of demand is extremely low, and use chip NE555, it and peripheral cell form mono-stable timing circuit, not only control sensitive, staff is taken away and namely can be cut off water outlet immediately, and when staff deviate from ultrared investigative range once in a while, also the normal water outlet of hand washer can be ensured, structure is simple, and cost is low, is applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of automatic hand-washer control circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical 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, in the utility model embodiment, a kind of automatic hand-washer control circuit, comprises rectifier bridge Q, fuse FU, transformer T, three terminal regulator U1, chip U2, chip U3 and chip U4, fuse FU one end connects 220V alternating current, the 220V alternating current other end connects electromagnetic water valve Y and transformer T coil L1 respectively, the transformer T coil L1 other end connects the fuse FU other end and relay J contact J-1 respectively, the relay J contact J-1 other end connects the electromagnetic water valve Y other end, transformer T coil L2 two ends connect rectifier bridge Q pin 1 and pin 3 respectively, and rectifier bridge Q pin 2 is contact resistance R1 respectively, electric capacity C1 and three terminal regulator U1 pin 1, rectifier bridge Q pin 4 be connecting luminous diode D1 negative pole respectively, the electric capacity C1 other end, three terminal regulator U1 pin 3, electric capacity C2, triode VT1 emitter, chip U2 pin 2, electric capacity C3, electric capacity C4, chip U3 pin 7 and electric capacity C5 ground connection, the light emitting diode D1 positive pole contact resistance R1 other end, the electric capacity C2 other end connects three terminal regulator U1 pin 2 respectively, potentiometer RP, potentiometer RP slide plate, chip U2 pin 1, chip U3 pin 4, resistance R2, relay J coil, diode D4 negative pole, chip U4 pin 4 and chip U4 pin 8, chip U2 pin 3 connects chip U3 pin 3 by electric capacity C8, the resistance R2 other end connects chip U3 pin 5 and chip U4 pin 2 respectively, chip U3 pin 1 connects the electric capacity C3 other end, chip U3 pin 2 connects the electric capacity C4 other end, chip U3 pin 6 connects the electric capacity C5 other end, chip U3 pin 8 contact resistance R3, resistance R3 other end connecting triode VT1 base stage, triode VT1 collector connects infrared-emitting diode D2 negative pole, infrared-emitting diode D2 positive pole connects the potentiometer RP other end, diode D4 positive pole connects the relay J coil other end and triode VT2 collector respectively, triode VT2 grounded emitter, triode VT2 base stage contact resistance R4, resistance R4 other end connecting luminous diode D3 negative pole, light emitting diode D3 positive pole connects chip U4 pin 3, chip U4 pin 1 ground connection, chip U4 pin 5 connects direct earth capacitance C6, chip U4 pin 6 connects direct earth capacitance C7 and chip U4 pin 7 respectively.
Three terminal regulator U1 model is 7806.
Chip U2 model is SFH506-38
Chip U3 model is LM567.
Chip U4 model is NE555.
Principle of work of the present utility model is: 220V alternating circuit is through transformer T step-down, become low-voltage AC, through rectifying and wave-filtering, become low-voltage direct, again through three end integrated stable voltage circuit 7806 voltage stabilizings, obtain the work of 6V direct current supply control circuit, light emitting diode D1 is red light emitting diodes, indicate as power supply, chip U2 is infrared receiving circuit SFH506-38, chip U3 is phaselocked loop tone decoder LM567, chip U3 and electric capacity C5 forms oscillator, LM567 pin 3 is signal input part, pin 8 is logic output terminal, its output terminal is that OC door exports, maximum filling electric current is 100mA, the operating voltage of LM567 is 4.75V ~ 9V, frequency of operation can from zero point several hertz to 500 kilo hertzs, static working current is 8mA.Chip U4 is NE555 timer, it and peripheral cell form mono-stable timing circuit, staff its objective is when deviate from ultrared investigative range once in a while, the normal water outlet of hand washer can be ensured, the oscillator signal that LM567 chip pin 5 exports, after triode VT1 power amplification, promotes infrared-emitting diode D2 and outwards launches infrared ray.When nobody washes one's hands, infrared receiving circuit U2 does not receive the infrared ray that infrared-emitting diode D2 outwards launches, chip U3 pin 3 no signal inputs, chip U3 pin 8 is high level, chip U4 pin 3 is low level, and triode VT1 ends, and relay J power-off is in release conditions, electromagnetic water valve Y is failure to actuate, and hand washer is released without tap water.When staff is put under hand washer, chip U2 receive staff reflection infrared ray and through U2 amplify after, be input to chip U3 pin 3, U3 pin 8 output low level is made by after chip U3 inter-process, thus make the low triggering end pin 2 of chip U4 become electronegative potential, the pin 3 of chip U4 is caused to export high level, triode VT2 conducting, relay J adhesive, its normally opened contact J-1 is closed, connect the 220V AC power of electromagnetic water valve Y, electromagnetic water valve Y starts action, hand washer is made to release tap water, for people's washing, light emitting diode D3 sends green glow simultaneously, instruction hand washer just works in the state of discharging water.Wash complete, after staff leaves hand washer, U4 resets immediately, makes hand washer stop discharging water.
Claims (5)
1. an automatic hand-washer control circuit, comprises rectifier bridge Q, fuse FU, transformer T, three terminal regulator U1, chip U2, chip U3 and chip U4, it is characterized in that, described fuse FU one end connects 220V alternating current, the 220V alternating current other end connects electromagnetic water valve Y and transformer T coil L1 respectively, the transformer T coil L1 other end connects the fuse FU other end and relay J contact J-1 respectively, the relay J contact J-1 other end connects the electromagnetic water valve Y other end, and described transformer T coil L2 two ends connect rectifier bridge Q pin 1 and pin 3 respectively, and rectifier bridge Q pin 2 is contact resistance R1 respectively, electric capacity C1 and three terminal regulator U1 pin 1, rectifier bridge Q pin 4 be connecting luminous diode D1 negative pole respectively, the electric capacity C1 other end, three terminal regulator U1 pin 3, electric capacity C2, triode VT1 emitter, chip U2 pin 2, electric capacity C3, electric capacity C4, chip U3 pin 7 and electric capacity C5 ground connection, the light emitting diode D1 positive pole contact resistance R1 other end, the described electric capacity C2 other end connects three terminal regulator U1 pin 2 respectively, potentiometer RP, potentiometer RP slide plate, chip U2 pin 1, chip U3 pin 4, resistance R2, relay J coil, diode D4 negative pole, chip U4 pin 4 and chip U4 pin 8, chip U2 pin 3 connects chip U3 pin 3 by electric capacity C8, the described resistance R2 other end connects chip U3 pin 5 and chip U4 pin 2 respectively, chip U3 pin 1 connects the electric capacity C3 other end, chip U3 pin 2 connects the electric capacity C4 other end, chip U3 pin 6 connects the electric capacity C5 other end, chip U3 pin 8 contact resistance R3, resistance R3 other end connecting triode VT1 base stage, triode VT1 collector connects infrared-emitting diode D2 negative pole, infrared-emitting diode D2 positive pole connects the potentiometer RP other end, described diode D4 positive pole connects the relay J coil other end and triode VT2 collector respectively, triode VT2 grounded emitter, triode VT2 base stage contact resistance R4, resistance R4 other end connecting luminous diode D3 negative pole, light emitting diode D3 positive pole connects chip U4 pin 3, chip U4 pin 1 ground connection, chip U4 pin 5 connects direct earth capacitance C6, chip U4 pin 6 connects direct earth capacitance C7 and chip U4 pin 7 respectively.
2. automatic hand-washer control circuit according to claim 1, is characterized in that, described three terminal regulator U1 model is 7806.
3. automatic hand-washer control circuit according to claim 1, is characterized in that, described chip U2 model is SFH506-38.
4. automatic hand-washer control circuit according to claim 1, is characterized in that, described chip U3 model is LM567.
5. automatic hand-washer control circuit according to claim 1, is characterized in that, described chip U4 model is NE555.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281739.4U CN204536791U (en) | 2015-04-25 | 2015-04-25 | A kind of automatic hand-washer control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281739.4U CN204536791U (en) | 2015-04-25 | 2015-04-25 | A kind of automatic hand-washer control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204536791U true CN204536791U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520281739.4U Expired - Fee Related CN204536791U (en) | 2015-04-25 | 2015-04-25 | A kind of automatic hand-washer control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954762A (en) * | 2016-06-06 | 2016-09-21 | 国网河北省电力公司电力科学研究院 | Superhigh anti-collision apparatus for special operation engineering vehicle for electric power measurement, and alarming method thereof |
-
2015
- 2015-04-25 CN CN201520281739.4U patent/CN204536791U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954762A (en) * | 2016-06-06 | 2016-09-21 | 国网河北省电力公司电力科学研究院 | Superhigh anti-collision apparatus for special operation engineering vehicle for electric power measurement, and alarming method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160425 |