CN209055831U - A kind of control system of achievable double pump automatic alternate - Google Patents
A kind of control system of achievable double pump automatic alternate Download PDFInfo
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- CN209055831U CN209055831U CN201822177050.3U CN201822177050U CN209055831U CN 209055831 U CN209055831 U CN 209055831U CN 201822177050 U CN201822177050 U CN 201822177050U CN 209055831 U CN209055831 U CN 209055831U
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Abstract
The utility model discloses a kind of control systems of achievable double pump automatic alternate, including the first sewage pump, second sewage pump, first liquid level sensor and the second liquid level sensor, it further include control circuit, switching circuit, it controls the first driving circuit of first sewage pump and controls the second driving circuit of second sewage pump, the switching circuit is connected with first driving circuit with second driving circuit respectively, the control circuit is electrically connected with first liquid level sensor and second liquid level sensor respectively, the control circuit uses STM32 chip, the switching circuit includes three state buffer U1, triode Q1, triode Q2, triode Q3, triode Q4 and NOT gate U2.Control system provided by the utility model, can be realized the automatic switchover of double pump, and when use can be adjusted in real time according to the needs of actual pump liquid level.
Description
Technical field
The utility model relates to water pump control technology field, specially a kind of control system of achievable double pump automatic alternate
System.
Background technique
Currently, limitation of many occasions due to condition, many control systems do not have the function of automatic alternate, it cannot be according to reality
The liquid level needs on border are adjusted, and when use is very inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of control systems of achievable double pump automatic alternate, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of control system of achievable double pump automatic alternate, including the first sewage pump, the second sewage pump, the first liquid level pass
Sensor and the second liquid level sensor, which is characterized in that further include control circuit, switching circuit, control first sewage pump
First driving circuit and the second driving circuit for controlling second sewage pump, the switching circuit drive with described first respectively
Circuit is connected with second driving circuit, the control circuit respectively with first liquid level sensor and second liquid level
Sensor electrical connection, the control circuit use STM32 chip, the switching circuit include three state buffer U1, triode Q1,
The 2nd pin connection control circuit of triode Q2, triode Q3, triode Q4 and NOT gate U2, the three state buffer U1
Control signal, the triode Q1 by collector connect three state buffer U1 the 1st pin, the three state buffer U1's
4th pin passes through the base stage of resistance R8 connecting triode Q3, and the 4th pin of the three state buffer U1 is connected by resistance R10
The base stage of triode Q4, the collector of the triode Q2 pass through the emitter-base bandgap grading of resistance R6 connecting triode Q3, the triode Q3
Emitter-base bandgap grading connection diode D1 forward end, the backward end of the diode D1 connection diode D2, the diode D1 and two
The concatenation point of pole pipe D2 is grounded by resistance R9, and the concatenation point of the diode D1 and diode D2 connect the NOT gate U2's
Input terminal, the switching circuit output two path control signal, respectively first control signal and second control signal, described first
Control signal is exported with the concatenation of diode D2 point from the diode D1 and is connected with first driving circuit, described second
Control signal is exported from the output end of the NOT gate U2 and is connected with second driving circuit.
Preferably, the collector of the triode Q1 is connected with resistance R1, another termination+5V power supply electricity of resistance R1
Pressure, the base stage of the collector of other end connecting triode Q1, the triode Q1 connect supply voltage, three pole by resistance R2
The emitter grounding of pipe Q1, the resistance R1 are connected in parallel resistance R3, and the 2nd pin of the three state buffer U1 connects the control
The control signal of circuit, the 3rd pin ground connection of the three state buffer U1, the 5th pin of the three state buffer U1 connect+5V confession
5th pin of piezoelectric voltage, the three state buffer U1 connects capacitor C1, and the 4th pin of the three state buffer U1 passes through resistance
R4 ground connection.
Preferably, the emitter-base bandgap grading of the triode Q2 connects+5V supply voltage, and the base stage of the triode Q2 is connect by resistance R5
Ground, the collector of the triode Q2 are sequentially connected resistance R6 and resistance R7, and the resistance R6 is connected with the concatenation of resistance R7 point
The base stage of the emitter-base bandgap grading of the triode Q3, the grounded collector of the triode Q3, the triode Q3 meets institute by resistance R8
State the 4th pin of three state buffer U1.
Preferably, the triode Q4 connects the 4th pin of the three state buffer U1, the triode by resistance R10
The collector of the emitter grounding of Q4, the triode Q4 connects the forward end of diode D2, and the one end resistance R11 is connected with resistance R12,
The resistance R11 other end is connected with the collector of triode Q2, resistance R12 other end ground connection, the resistance R11 and resistance R12 string
Contact is connected with the collector of the triode Q4.
Preferably, first driving circuit includes photoelectrical coupler U3, sustained diode 3, light emitting diode D4 and electricity
R13 is hindered, the 1st pin of input terminal of the photoelectrical coupler U3 is connected with the first control signal, and the 2nd pin passes through resistance
R15 connects+5V supply voltage, and the 1st pin of output end of the photoelectrical coupler U3 is connected to light emitting diode D4 by resistance R16
With the series circuit of resistance R13 composition, the series circuit and the sustained diode 3 of light emitting diode D4 and resistance R13 composition
It is connected in parallel, the sustained diode 3 and relay J1 are connected in parallel, and the resistance R13 and sustained diode 3 meet+12V
Supply voltage, the relay J1 connect+24V supply voltage.
Preferably, second driving circuit includes photoelectrical coupler U4, sustained diode 5, light emitting diode D6 and electricity
R14 is hindered, the 1st pin of input terminal of the photoelectrical coupler U4 is connected with the second control signal, and the 2nd pin passes through resistance
R17 connects+5V supply voltage, and the 1st pin of output end of the photoelectrical coupler U4 is connected to light emitting diode D6 by resistance R18
With the series circuit of resistance R14 composition, the series circuit and the sustained diode 5 of light emitting diode D6 and resistance R14 composition
It is connected in parallel, the sustained diode 5 and relay J2 are connected in parallel, and the resistance R14 and sustained diode 5 meet+12V
Supply voltage, the relay J2 connect+24V supply voltage.
Compared with prior art, the utility model has the beneficial effects that a kind of achievable double pump provided by the utility model
The control system of automatic alternate can realize the automatic switchover of double pump under control of the control signal, and when use can be according to reality
The needs of border water pump liquid level are adjusted in real time, and use is very convenient.
Detailed description of the invention
Fig. 1-4 is the utility model electrical block diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-4, a kind of control system of achievable double pump automatic alternate, including the first sewage pump, the second sewage
Pump, the first liquid level sensor and the second liquid level sensor, which is characterized in that further include control circuit, switching circuit, described in control
First driving circuit of the first sewage pump and the second driving circuit for controlling second sewage pump, the switching circuit respectively and
First driving circuit is connected with second driving circuit, the control circuit respectively with first liquid level sensor and
The second liquid level sensor electrical connection, the control circuit uses STM32 chip, as shown in Figure 1, the switching circuit includes
Three state buffer U1, triode Q1, triode Q2, triode Q3, triode Q4 and NOT gate U2, the three state buffer U1
2 pins connect the control signal of the control circuit, and the triode Q1 is drawn by the 1st that collector connects three state buffer U1
Foot, the 4th pin of the three state buffer U1 pass through the base stage of resistance R8 connecting triode Q3, and the of the three state buffer U1
4 pins pass through the base stage of resistance R10 connecting triode Q4, and the collector of the triode Q2 passes through resistance R6 connecting triode Q3
Emitter-base bandgap grading, the triode Q3 emitter-base bandgap grading connection diode D1 forward end, the diode D1 connection diode D2's is reversed
The concatenation point of end, the diode D1 and diode D2 are grounded by resistance R9, the concatenation of the diode D1 and diode D2
Point connects the input terminal of the NOT gate U2, and the switching circuit exports two path control signal, respectively first control signal and the
Two control signals, concatenation point and and the first driving electricity of the first control signal from the diode D1 and diode D2
Road connection, the second control signal are exported from the output end of the NOT gate U2 and are connected with second driving circuit.
Preferably, as shown in Fig. 2, the collector of triode Q1 is connected with resistance R1, another termination+5V of resistance R1 is supplied
The base stage of piezoelectric voltage, the collector of other end connecting triode Q1, the triode Q1 connects supply voltage by resistance R2, described
The emitter grounding of triode Q1, the resistance R1 are connected in parallel resistance R3, the 3rd pin ground connection of the three state buffer U1, institute
The 5th pin for stating three state buffer U1 connects+5V supply voltage, and the 5th pin of the three state buffer U1 connects capacitor C1, described
The 4th pin of three state buffer U1 is grounded by resistance R4.
When output pin 4 is high level, Q3 cut-off, Q4 conducting, then Q4 low potential, D2 end, Q3 high potential, by R6 and R7
The voltage of partial pressure flows through D1 conducting, and the voltage that R6 and R7 are divided is much smaller than R11 and R12, exports low-voltage.
When output pin 4 is low level, Q3 conducting, Q4 cut-off, then Q3 low potential, D1 cut-off, Q4 high potential, by R11 and
The voltage of R12 partial pressure flows through D2 conducting output HIGH voltage.
Preferably, the emitter-base bandgap grading of the triode Q2 connects+5V supply voltage, and the base stage of the triode Q2 is connect by resistance R5
Ground, the collector of the triode Q2 are sequentially connected resistance R6 and resistance R7, and the resistance R6 is connected with the concatenation of resistance R7 point
The base stage of the emitter-base bandgap grading of the triode Q3, the grounded collector of the triode Q3, the triode Q3 meets institute by resistance R8
State the 4th pin of three state buffer U1.
Preferably, the triode Q4 connects the 4th pin of the three state buffer U1, the triode by resistance R10
The collector of the emitter grounding of Q4, the triode Q4 connects the forward end of diode D2, and the one end resistance R11 is connected with resistance R12,
The resistance R11 other end is connected with the collector of triode Q2, resistance R12 other end ground connection, the resistance R11 and resistance R12 string
Contact is connected with the collector of the triode Q4.
Preferably, as shown in figure 3, first driving circuit includes photoelectrical coupler U3, sustained diode 3 and series connection
The light emitting diode D4 and resistance R13, the 1st pin of input terminal of the photoelectrical coupler U3 and the first control signal of connection
Connection, the 2nd pin connect+5V supply voltage by resistance R15, and the 1st pin of output end of the photoelectrical coupler U3 passes through resistance
R16 is connected to the series circuit of light emitting diode D4 and resistance R13 composition, the series connection of light emitting diode D4 and resistance R13 composition
Circuit is connected in parallel with the sustained diode 3, and the sustained diode 3 and relay J1 are connected in parallel, the resistance R13
+ 12V supply voltage is connect with sustained diode 3, the relay J1 connects+24V supply voltage.
Preferably, as shown in figure 4, second driving circuit includes photoelectrical coupler U4, sustained diode 5 and series connection
The light emitting diode D6 and resistance R14, the 1st pin of input terminal of the photoelectrical coupler U4 and the second control signal of connection
Connection, the 2nd pin connect+5V supply voltage by resistance R17, and the 1st pin of output end of the photoelectrical coupler U4 passes through resistance
R18 is connected to the series circuit of light emitting diode D6 and resistance R14 composition, the series connection of light emitting diode D6 and resistance R14 composition
Circuit and the sustained diode 5 are connected in parallel, and the sustained diode 5 and relay J2 are connected in parallel, the resistance R14
+ 12V supply voltage is connect with sustained diode 5, the relay J2 connects+24V supply voltage.
A kind of control system of achievable double pump automatic alternate provided by the utility model, the specific working principle is as follows:
Control circuit STM32 control signal is input to the 2nd pin of three state buffer U1, and Q2 base stage is low potential, and Q2 conducting is subsequent electricity
Road power supply, while Q1 base stage is that Q1 is connected in high potential, the 1st pin of three state buffer U1 is low potential, the 4th pin output electricity
It presses identical as the 2nd pin.The control signal of system is directly connected to the 2nd pin of three state buffer U1 (since this signal can be
High level or low level two states), to make three state buffer U1 output high potential or low potential, this voltage determines Q3 and Q4
On and off, to automatically select opening and closing, and two paths of signals is exported by NOT gate U2, controls sewage pump respectively
Two-way driving signal controls the actuating of relay or is failure to actuate, and when the actuating of relay, light emitting diode is lit, relay
Output is intuitive, stablizes, and therefore, the job rotating of two water pumps can be controlled the control of signal, and rotation time can be by being
System is freely arranged, and control circuit can detecte the liquid level signal of liquid level sensor, to be adjusted in real time according to liquid level signal
It is whole.
The two path control signal of output, it is long-range to control relay work, driving circuit select opto-coupler chip AQW214 come into
Row Phototube Coupling, when controlling signal is high level, optocoupler is not exported, and relay is failure to actuate；When control signal is low level
When, optocoupler has output, the actuating of relay, and has added light emitting diode and freewheeling diode at the coil both ends of relay, when
Light emitting diode is lit when the actuating of relay, keeps the output of relay more intuitive, more stable.
The utility model can realize the automatic switchover of double pump under control of the control signal, and when use can be according to reality
The needs of border water pump liquid level are adjusted in real time, and use is very convenient.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of control system of achievable double pump automatic alternate, including the first sewage pump, the second sewage pump, the first level sensing
Device and the second liquid level sensor, which is characterized in that further include control circuit, switching circuit, control first sewage pump the
One drive circuit and the second driving circuit for controlling second sewage pump, the switching circuit are electric with first driving respectively
Road is connected with second driving circuit, and the control circuit is passed with first liquid level sensor and second liquid level respectively
Sensor electrical connection, the control circuit use STM32 chip, and the switching circuit includes three state buffer U1, triode Q1, three
Pole pipe Q2, triode Q3, triode Q4 and NOT gate U2, the 2nd pin of the three state buffer U1 connect the control circuit
Controlling signal, the triode Q1 is by the 1st pin of collector connection three state buffer U1, and the of the three state buffer U1
4 pins pass through the base stage of resistance R8 connecting triode Q3, and the 4th pin of the three state buffer U1 passes through resistance R10 connection three
The base stage of pole pipe Q4, the collector of the triode Q2 pass through the emitter-base bandgap grading of resistance R6 connecting triode Q3, the triode Q3's
Emitter-base bandgap grading connects the forward end of diode D1, the backward end of the diode D1 connection diode D2, the diode D1 and two poles
The concatenation point of pipe D2 is grounded by resistance R9, and the concatenation point of the diode D1 and diode D2 connect the defeated of the NOT gate U2
Enter end, the switching circuit exports two path control signal, respectively first control signal and second control signal, first control
Signal processed is exported with the concatenation of diode D2 point from the diode D1 and is connected with first driving circuit, second control
Signal processed is exported from the NOT gate U2 Hu output end and is connected with second driving circuit.
2. the control system of achievable double pump automatic alternate as described in claim 1, which is characterized in that the triode Q1's
Collector is connected with resistance R1, and the base stage of another termination+5V supply voltage of resistance R1, the triode Q1 passes through resistance R2
Supply voltage, the emitter grounding of the triode Q1 are connect, the resistance R1 is connected in parallel resistance R3, the three state buffer U1's
3rd pin ground connection, the 5th pin of the three state buffer U1 connect+5V supply voltage, the 5th pin of the three state buffer U1
Capacitor C1 is connected, the 4th pin of the three state buffer U1 is grounded by resistance R4.
3. the control system of achievable double pump automatic alternate as claimed in claim 2, which is characterized in that the triode Q2's
Emitter-base bandgap grading connects+5V supply voltage, and the base stage of the triode Q2 is grounded by resistance R5, and the collector of the triode Q2 successively connects
The concatenation of connecting resistance R6 and resistance R7, the resistance R6 and resistance R7 point connect the emitter-base bandgap grading of the triode Q3, the triode
The grounded collector of Q3, the base stage of the triode Q3 connect the 4th pin of the three state buffer U1 by resistance R8.
4. the control system of achievable double pump automatic alternate as claimed in claim 3, which is characterized in that the triode Q4 is logical
Cross the 4th pin that resistance R10 meets the three state buffer U1, the emitter grounding of the triode Q4, the collection of the triode Q4
Electrode connects the forward end of diode D2, and the one end resistance R11 is connected with resistance R12, the current collection of the resistance R11 other end and triode Q2
The collector of pole connection, resistance R12 other end ground connection, the resistance R11 and resistance R12 concatenation point and the triode Q4 connect
It connects.
5. the control system of achievable double pump automatic alternate as described in claim 1, which is characterized in that the first driving electricity
Road includes photoelectrical coupler U3, sustained diode 3, light emitting diode D4 and resistance R13, the input of the photoelectrical coupler U3
The 1st pin is held to connect with the first control signal, the 2nd pin connects+5V supply voltage, the photoelectric coupling by resistance R15
The 1st pin of output end of device U3 is connected to the series circuit of light emitting diode D4 and resistance R13 composition by resistance R16, shines
The series circuit of diode D4 and resistance R13 composition is connected in parallel with the sustained diode 3,3 He of sustained diode
Relay J1 is connected in parallel, and the resistance R13 and sustained diode 3 connect+12V supply voltage, and the relay J1 meets+24V
Supply voltage.
6. the control system of achievable double pump automatic alternate as described in claim 1, which is characterized in that the second driving electricity
Road includes photoelectrical coupler U4, sustained diode 5, light emitting diode D6 and resistance R14, the input of the photoelectrical coupler U4
The 1st pin is held to connect with the second control signal, the 2nd pin connects+5V supply voltage, the photoelectric coupling by resistance R17
The 1st pin of output end of device U4 is connected to the series circuit of light emitting diode D6 and resistance R14 composition by resistance R18, shines
The series circuit and the sustained diode 5 of diode D6 and resistance R14 composition are connected in parallel, 5 He of sustained diode
Relay J2 is connected in parallel, and the resistance R14 and sustained diode 5 connect+12V supply voltage, and the relay J2 meets+24V
Supply voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822177050.3U CN209055831U (en) | 2018-12-25 | 2018-12-25 | A kind of control system of achievable double pump automatic alternate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822177050.3U CN209055831U (en) | 2018-12-25 | 2018-12-25 | A kind of control system of achievable double pump automatic alternate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209055831U true CN209055831U (en) | 2019-07-02 |
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ID=67055262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822177050.3U Active CN209055831U (en) | 2018-12-25 | 2018-12-25 | A kind of control system of achievable double pump automatic alternate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209055831U (en) |
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2018
- 2018-12-25 CN CN201822177050.3U patent/CN209055831U/en active Active
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