CN1241081C - Automatic-open switch for controlling water supply - Google Patents

Automatic-open switch for controlling water supply Download PDF

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Publication number
CN1241081C
CN1241081C CN 03138076 CN03138076A CN1241081C CN 1241081 C CN1241081 C CN 1241081C CN 03138076 CN03138076 CN 03138076 CN 03138076 A CN03138076 A CN 03138076A CN 1241081 C CN1241081 C CN 1241081C
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resistance
circuit
pin
power supply
voltage
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CN1455305A (en
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陈宏君
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Abstract

The present invention discloses an automatic on-off switch for controlling water supply, which is formed by the connection of an AC power supply circuit, a DC power supply circuit, a power amplifying switch circuit and a sampling display circuit, wherein the power amplifying switch circuit is provided with a relay J, and the sampling display circuit is connected with a sampling electrode; the sampling display circuit comprises an integrated package (IC) which has the functions of an inverter, and voltage at a C end and a D end of a pin of the integrated package is triggered and controlled by voltage at a B end of the pin; a positive pole of the DC power supply circuit is connected to the ground. The integrated package is connected with the sampling electrode by a resistor R6, and is connected with a resistor R1, a resistor R3, a resistor R5 and a resistor R6 which are matched and a diode D5, so the function of a control switch for automatic water supply can be performed, and the purpose that water storage devices, such as water towers, or high layer sinks, etc. control water supply can be achieved by only an external connection wire. The present invention has the advantages of simple and convenient wiring installation, strong practicability and easy popularization.

Description

A kind of automatic open close switch of controlling water supply
Technical field
The present invention relates to automatic control switch, relate in particular to a kind of automatic open close switch of controlling water supply, the water supply that is used for water storage devices such as water tower or high-rise pond is controlled automatically.
Technical background
The water supply in tradition water tower and high-rise pond, adopt ball float for the control that reaches water supply more and drive travel switch, the method of this control, because of being that mechanical linkage matches between travel switch and the ball float, the long period of soaking mechanical part easily gets rusty, make the lost of life, sensitivity is also poor, the normal appearance problem that overfill is overflowed that can not supply water or supply water.China utility model patent ZL99232878.0 " pump electricity consumption contact automatic controller for water level " (notification number is CN2371231Y) discloses a kind of water supply controlling schemes, this water supply controlling schemes is formed with the signal sampling circuit that exchanges output circuit, direct supply, indicating circuit, the power amplification circuit that is provided with relay J, signal amplification circuit and be provided with take a sample noncontinuous electrode and two long electrodes of taking a sample by exchanging input, as shown in Figure 4 as can be known, Fig. 4 is the accompanying drawing 2 of this utility model patent ZL99232878.0.With ac power input end incoming transport civil power, ac power output is inserted water pump or A.C. contactor load, and electrode is inserted in water feeder or the standpipe when this self-actuated controller uses, just control water level automatically; This water supply controlling schemes has good reliability and highly sensitive advantage, but because its signal sampling circuit is made up of a sampling noncontinuous electrode and two sampling long electrodes, three external connections cause the external cabling complexity, and the position of water tower and high-rise pond setting is all very high usually, certainly will consume a large amount of electric wires, this just makes that the cost of laying circuit increases greatly, increased the overall cost of construction, strengthened installation difficulty, especially peasant household or the resident to high-rise residential building is arranged, increased its financial burden, influenced and the water supply controlling schemes to have applied.
Summary of the invention
Technical matters to be solved by this invention is the present situation at prior art, provide a kind of with low cost, reliably reach convenient wiring well, only can realize the automatic open close switch that water storage devices control such as water tower or high-rise pond is supplied water with an external connection.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of automatic open close switch of controlling water supply is connected to form by AC power circuit, DC power supply circuit, the sampling and display circuit that is provided with the power discharging switch circuit of relay J and is connected to sampling electrode; Described DC power supply circuit is by rectification circuit and capacitor C 1Form; Described power discharging switch circuit comprises a triode VT, cross-over connection is in parallel between its collector and the DC power supply circuit positive pole relay J, capacitor C 2And the LED of serial connection 1, resistance R 4, its emitter connects the DC power supply circuit negative pole, and its base stage is through resistance R 2Connect described sampling and display circuit, the measure of taking also comprises:
A. described sampling and display circuit comprises that one has the ic chip of inverter function, this ic chip, and its A, E end pin connects the DC power supply circuit both positive and negative polarity respectively; Its B end pin respectively and be suspended from that cross-over connection has sample resistance R between the sampling electrode in the water storage device 6, and cross-over connection has divider resistance R between the described DC power supply circuit positive pole 5, the diode D of serial connection is mutually arranged with cross-over connection between the described triode VT collector 5And resistance R 3, and cross-over connection has another divider resistance R between the described DC power supply circuit negative pole 1Its C end pin connects the resistance R of described power discharging switch circuit 2Cross-over connection has and is connected in series LED mutually between its D end pin and the DC power supply circuit negative pole 2
B. described DC power supply circuit plus earth, its cathode voltage are-the E volt;
C. this ic chip pin C, D terminal voltage trigger control by pin B terminal voltage, and this pin B terminal voltage is a trigger high voltage, and pin C terminal voltage is a low-voltage, and pin D terminal voltage then is a high voltage; This pin B terminal voltage is for triggering low-voltage, and pin C terminal voltage is a high voltage, and pin D terminal voltage then is a low-voltage.
For optimizing technique scheme, the measure of being taked also comprises:
Above-mentioned resistance R 1With resistance R 5Resistance equate that then pin B end trigger high voltage is 0 volt, trigger low-voltage and be-E/2 lies prostrate.
Above-mentioned resistance R 1, R 5And R 6Resistance be the configuration that is complementary.For the ic chip with inverter function provides stable control voltage, guarantee the reliably working of this switch.
Above-mentioned resistance R 1, R 5And R 6Resistance is 4700K Ω, makes the functional reliability of this switch better.
Cross-over connection has diode D between above-mentioned triode VT emitter and the DC power supply circuit negative pole 7, make resistance R 6The resistance span increases, and can play and improve the effect of this switch performances.
The model that above-mentioned ic chip is selected for use is CC4069.The ic chip of this CC4069 model is that technology is reliable, the phase inverter of stable performance, makes this switch performances more reliable and more stable.
Compared with prior art, sampling and display circuit of the present invention adopts ic chip as center part, be connected with a sampling electrode that is connected through resistance R 6 by this ic chip, and with the resistance R 1, R3, R5, R6 and the diode VD that mate value 5Be connected, can play the effect of reliable automatic water-supply gauge tap, reached the purpose that control such as the water storage device of only can realizing water tower or high-rise pond with an external connection is supplied water, its wiring is installed simple and convenient, practical, is easy to promote.
Description of drawings
Fig. 1 is the present invention's electricity functional-block diagram;
Fig. 2 is the circuit theory diagrams of Fig. 1 specific embodiment one;
Fig. 3 is the circuit theory diagrams of Fig. 1 specific embodiment two;
Fig. 4 is the accompanying drawing 2 of utility model patent ZL99232878.0.
Specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Fig. 1, shown in Figure 2, a kind of automatic open close switch of controlling water supply is connected to form by AC power circuit, DC power supply circuit, the sampling and display circuit that is provided with the power discharging switch circuit of relay J and is connected to a sampling electrode; The AC power circuit input end inserts 220 volts of electric mains, the AC power circuit high-voltage output end is connect the power input of the water pump of load by a relay J capacitor C 3 in parallel; The AC power circuit low-voltage output is as the DC power supply circuit input end, and the DC power supply circuit output terminal connects power discharging switch circuit and sampling and display circuit respectively.
Rectification circuit in the present embodiment is a bridge rectifier circuit, by diode D 1, D 2, D 3, D 4Form, and with the capacitor C that is connected in parallel on the bridge rectifier circuit output terminal 1Constitute DC power supply circuit, DC power supply circuit plus earth, its negative terminal voltage is-E, for security consideration connects at the bridge rectifier circuit output cathode-protective tube R usually D
Power discharging switch circuit comprises-triode VT, cross-over connection is in parallel between its collector and the DC power supply circuit positive pole relay J, capacitor C 2And the LED of serial connection 1, resistance R 4Cross-over connection has diode D between its emitter and the DC power supply circuit negative pole 7, make resistance R 6The resistance span increases, and can play and improve the effect of this switch performances; Its base stage is through resistance R 2Connect described sampling and display circuit.
Sampling and display circuit comprises that one has the ic chip of inverter function, and its A, E end pin connects the DC power supply circuit both positive and negative polarity respectively; The ic chip model that the present invention selects for use is CC4069, and the ic chip of this CC4069 model is that technology is reliable, the phase inverter of stable performance, makes this switch performances more reliable and more stable.Its A end pin connects the DC power supply circuit positive pole; Its B end pin respectively and be suspended from that cross-over connection has sample resistance R between the sampling electrode in the water storage device 6, and cross-over connection has divider resistance R between the described DC power supply circuit positive pole 5, the diode D of serial connection is mutually arranged with cross-over connection between the triode VT collector 5And resistance R 3, and cross-over connection has another divider resistance R between the DC power supply circuit negative pole 1Its C end pin connects the resistance R of described power discharging switch circuit 2Cross-over connection has and is connected in series LED mutually between its pin D end and the DC power supply circuit negative pole 2This ic chip pin C, D terminal voltage trigger control by pin B terminal voltage, and when this pin B terminal voltage was trigger high voltage, when promptly the embodiment of the invention one pin B end trigger high voltage was 0 volt, pin C terminal voltage was a low-voltage, and pin D terminal voltage then is a high voltage; This pin B terminal voltage when triggering low-voltage, promptly the embodiment of the invention one trigger low-voltage and be-when E/2 lied prostrate, pin C terminal voltage was a high voltage, pin D terminal voltage then is a low-voltage.
Resistance R 6Resistance and resistance R 1, R 2, R 3, R 5The resistance configuration that is complementary, for the ic chip with inverter function provides stable control voltage, guarantee the reliably working of this switch; The resistance R that the embodiment of the invention one is selected for use 1, R 5And R 6Resistance is 4700K Ω, makes the functional reliability of this switch better.Sampling electrode one end connects sample resistance R 6, the other end then stretch in the water storage device and with the suitable distance of water storage device bottom spacing, the user regulates voluntarily as required.
Control procedure:
When the water surface in the water storage device is lower than the sampling electrode bottom position, in the time of promptly need supplying water, in the sampling and display circuit, sample resistance R 6No current passes through, then pin B terminal voltage V B=-R 5/ (R 5+ R 1) E=-4700K Ω/(4700K Ω+4700K Ω) E=-1/2E, for triggering low-voltage state, this ic chip pin C, D terminal voltage are controlled by pin B terminal voltage.Therefore, pin C terminal voltage V CBe high voltage, the sampled signal that sampling and display circuit is input to power discharging switch circuit after triode VT amplifies, make relay J be in electric attracting state, the AC power circuit high-voltage output end has voltage output, pump operation supplies water in water storage device.Pin D terminal voltage V DThen be low-voltage, LED 2No current is not by luminous, and the LED that is connected with collector 1It is then luminous to switch on.
By the time the water surface rises to the sampling electrode bottom when above, in the sampling and display circuit, sample resistance R 6There is electric current to pass through, then pin B terminal voltage V B=-R 5,6/ (R 5, 6+R 1) E, because of R 5, R 6Be in parallel, Gu R 5,6=2350K Ω, then V B=-2350K Ω/(2350K Ω+4700K Ω) E=-1/3E still is the critical voltage state, and because of the characteristic of ic chip, pin C holds output voltage V CStill be high voltage, the sampled signal that sampling and display circuit is input to power discharging switch circuit after amplifying, relay J still be in electric attracting state, water pump still turns round and supplies water in water storage device, pin D terminal voltage V DStill be low-voltage, LED 2No current is not by luminous, and the LED that is connected with collector 1It is then luminous to switch on.
By the time the water surface rises to sample resistance R 6During last tie point, in the water storage device during fills with water, in this moment sampling and display circuit, sample resistance R 6Do not have electric current to pass through, then pin B holds ground connection, V B=0 is high voltage, the same reason, pin C terminal voltage V CThen be low-voltage, sampling and display circuit does not have sampled signal and is input to power discharging switch circuit, and triode VT does not have amplification, be in cut-off state, the relay J dead electricity discharges, and its contact disconnects the voltage output of AC power circuit high-voltage output end, and water pump shuts down and supplies water in water storage device.Pin D terminal voltage V DThen be high voltage, LED 2There have electric current to pass through to be luminous, and the LED that is connected with collector 1No power is then not luminous.
After the water storage device fills with water, make decline of water table arrive sample resistance R when user's water 6Last tie point is to the sampling electrode bottom when above, in the sampling and display circuit, and sample resistance R 6There is electric current to pass through, then pin B terminal voltage V B=-R 5,6/ (R 5,6+ R 1) E, because of R 5, R 6Be in parallel, Gu R 5,6=2350K Ω, then V B=-2350K Ω/(2350K Ω+4700K Ω) E=-1/3E still is the critical voltage state, and because of the characteristic of ic chip, pin C holds output voltage V CIt still is low-voltage, sampling and display circuit does not have sampled signal and is input to power discharging switch circuit, and triode VT does not have amplification, and the relay J dead electricity discharges, its contact disconnects the voltage output of AC power circuit high-voltage output end, and water pump still shuts down and do not supply water in water storage device.Pin D terminal voltage V DThen be high voltage, LED 2There have electric current to pass through to be luminous, and the LED that is connected with collector 1No power is then not luminous.
When the water surface in the water storage device is lower than the sampling electrode bottom position, in the time of promptly need supplying water, in the sampling and display circuit, sample resistance R 6No current passes through, then pin B terminal voltage V B=-R 5/ (R 5+ R 1) E=-4700K Ω/(4700K Ω+4700K Ω) E=-1/2E, for triggering low-voltage state, owing to this ic chip pin C, D terminal voltage are controlled by pin B terminal voltage.At this moment, pin C terminal voltage V CBe high voltage, the sampled signal that sampling and display circuit is input to power discharging switch circuit after triode VT amplifies, make relay J be in electric attracting state, the AC power circuit high-voltage output end has voltage output, pump operation supplies water in water storage device.Pin D terminal voltage V DBe low-voltage, LED 2No current is not by luminous, and the LED that is connected with collector 1It is then luminous to switch on.
As above process moves in circles, thereby realizes being used for the effect that water storage devices such as water tower or high-rise pond are controlled the automatic open close switch that supplies water.
Fig. 3 is the circuit theory diagrams of Fig. 1 specific embodiment two.Not existing together with one of embodiment is that rectification circuit is that half-wave rectifying circuit is by diode D 1With capacitor C 1Form, it constitutes DC power supply circuit plus earth, and its negative terminal voltage is-E.Other ingredients are with embodiment one, because the mating reaction of ic chip and triode VT, its control procedure is still with embodiment one.
Design proposal of the present invention is by the components and parts resistance R of built-up circuit 1, R 3, R 5, R 6And diode D 5Between ingenious setting, realize control triode VT conducting and end, signal sampling circuit can be reached Water Level Control by a sampling noncontinuous electrode, make external cabling simple, greatly reduce the cost of laying circuit, reduced the overall cost of construction and reduced installation difficulty, be easy to it and apply.Stable performance of the present invention, long service life directly starts 800W motor automatic switch after tested and do not break down for 50,000 times, and withstand voltage scope is big, 100 to 250 volts can both operate as normal at civil power.The present invention determines water level by sampling electrode relative position in being suspended from water storage device rationally is set, thereby controls the startup frequency of pump motor, reaches the purpose of economize on electricity.
Though the present invention illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.

Claims (6)

1, a kind of automatic open close switch of controlling water supply is connected to form by AC power circuit, DC power supply circuit, the sampling and display circuit that is provided with the power discharging switch circuit of relay J and is connected to sampling electrode; Described DC power supply circuit is by rectification circuit and capacitor C 1Form; Described power discharging switch circuit comprises a triode VT, cross-over connection is in parallel between its collector and the DC power supply circuit positive pole relay J, capacitor C 2And the LED of serial connection 1, resistance R 4, its emitter connects the DC power supply circuit negative pole, and its base stage is through resistance R 2Connect described sampling and display circuit, it is characterized in that:
A. described sampling and display circuit comprises that one has the ic chip of inverter function, this ic chip, and its A, E end pin connects the DC power supply circuit both positive and negative polarity respectively; Its B end pin respectively and be suspended from that cross-over connection has sample resistance R between the sampling electrode in the water storage device 6, and cross-over connection has divider resistance R between the described DC power supply circuit positive pole 5, the diode D of serial connection is mutually arranged with cross-over connection between the described triode VT collector 5And resistance R 3, and cross-over connection has another divider resistance R between the described DC power supply circuit negative pole 1Its C end pin connects the resistance R of described power discharging switch circuit 2Cross-over connection has and is connected in series LED mutually between its D end pin and the DC power supply circuit negative pole 2
B. described DC power supply circuit plus earth;
C. this ic chip pin C, D terminal voltage trigger control by pin B terminal voltage, and this pin B terminal voltage is a trigger high voltage, and pin C terminal voltage is a low-voltage, and pin D terminal voltage then is a high voltage; This pin B terminal voltage is for triggering low-voltage, and pin C terminal voltage is a high voltage, and pin D terminal voltage then is a low-voltage.
2, a kind of automatic open close switch of controlling water supply according to claim 1 is characterized in that: described resistance R 1With resistance R 5Resistance equate.
3, a kind of automatic open close switch of controlling water supply according to claim 1 is characterized in that: described resistance R 6Resistance and resistance R 1, R 2, R 3, R 5Resistance be complementary.
4, a kind of automatic open close switch of controlling water supply according to claim 3 is characterized in that: described resistance R 1, R 5And R 6Resistance is 4700K Ω.
5, according to the described a kind of automatic open close switch of controlling water supply of the arbitrary claim of claim 1 to 4, it is characterized in that: cross-over connection has diode D between described triode VT emitter and the DC power supply circuit negative pole 7
6, a kind of automatic open close switch of controlling water supply according to claim 5, it is characterized in that: the model that described ic chip is selected for use is CC4069.
CN 03138076 2003-05-28 2003-05-28 Automatic-open switch for controlling water supply Expired - Fee Related CN1241081C (en)

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Application Number Priority Date Filing Date Title
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CN 03138076 CN1241081C (en) 2003-05-28 2003-05-28 Automatic-open switch for controlling water supply

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CN1241081C true CN1241081C (en) 2006-02-08

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101937239B (en) * 2010-04-14 2011-12-07 宁波市镇海华泰电器厂 Electronic water level controller
CN101957623B (en) * 2010-05-28 2011-12-21 宁波市镇海华泰电器厂 Anti-explosion water level controller with large-power load

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