CN209030128U - A kind of brushless aerator - Google Patents
A kind of brushless aerator Download PDFInfo
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- CN209030128U CN209030128U CN201822092327.2U CN201822092327U CN209030128U CN 209030128 U CN209030128 U CN 209030128U CN 201822092327 U CN201822092327 U CN 201822092327U CN 209030128 U CN209030128 U CN 209030128U
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Abstract
The utility model discloses a kind of brushless aerators, are related to aerator technical field, including single-chip minimum system；Motor-drive circuit is connect with single-chip minimum system, brushless motor, according to the control signal driving brushless motor operating of single-chip minimum system output；Counter electromotive force detection circuit is connect with single-chip minimum system, motor-drive circuit, is detected the inverse electromotive force of brushless motor and is sent to single-chip minimum system；Current detection circuit is connect with single-chip minimum system, brushless motor, is detected the electric current of brushless motor and is sent to single-chip minimum system.Conventional motors are replaced with brushless motor by the design of the utility model combined circuit, are reduced friction and the noise of motor, while increasing corresponding detection circuit, are guaranteed the normal operation of aerator.
Description
Technical field
The utility model relates to aerator technical field more particularly to a kind of brushless aerators.
Background technique
Aerator is widely used in culture fishery, and main function is the oxygen content in increase pond to ensure in water
Fish will not anoxic, while can also inhibit the growth of anaerobic bacteria in water, prevent water is rotten from threatening Fish Survival environment.Compare
Typically have paddle aerator, principle is rotated by motor driven impeller, by the water in pond take out of the water surface be allowed to
Simultaneously dissolved oxygen, existing paddle aerator generally use conventional motors to drive for air contact, and friction is big, noise is big, fever
Detection device that is big and not responding to realizes real-time detection, therefore fails to find in first time when the failure of aerator circuit
The damage for leading to aerator brings security risk to user.
Utility model content
The purpose of this utility model is to provide a kind of brushless aerator, conventional motors are replaced with nothing by combined circuit design
Brush motor, reduces friction and the noise of motor, while increasing corresponding detection circuit, guarantees the normal operation of aerator.
To achieve the above object, the utility model provides the following technical solutions:
A kind of brushless aerator, which is characterized in that including
Single-chip minimum system；
Motor-drive circuit is connect with single-chip minimum system, brushless motor, the control exported according to single-chip minimum system
Signal driving brushless motor operating processed；
Counter electromotive force detection circuit is connect with single-chip minimum system, motor-drive circuit, detects the reversed of brushless motor
Electromotive force is simultaneously sent to single-chip minimum system；
Current detection circuit is connect with single-chip minimum system, brushless motor, is detected the electric current of brushless motor and is sent to
Single-chip minimum system.
Further, the single-chip minimum system uses STM32F030C8 chip U2.
Further, the motor-drive circuit is three-phase motor driving circuit, including the first phase motor-drive circuit, the
Two-phase electric machine driving circuit and third phase motor-drive circuit；
The first phase motor-drive circuit includes TLP5752 optocoupler U1 and TLP5752 optocoupler U9, TLP5752 optocoupler U1
The 1st pin connect with the first end of resistance R37, the first of the first end of the second end of resistance R37 and resistance R51, resistance R65
End is connected to the first input end of the first phase motor-drive circuit, the second end ground connection of resistance R51, the second end of resistance R65
It is connect with the base stage of triode Q4, the emitter of triode Q4 ground connection, the first end of the collector of triode Q4 and resistance R89,
The first end of resistance R90 connects, and the second end of resistance R89 and the first end of resistance R95 are connected to the first phase motor driven electricity
Second input terminal on road, the second end ground connection of resistance R95；The 4th pin of TLP5752 optocoupler U1 and first end, the electricity of capacitor C8
The drain electrode of source electrode, metal-oxide-semiconductor Q6 for holding the cathode of C6, the first end of capacitor C9, the first end of resistance R57, metal-oxide-semiconductor Q2 is connected to
The output end of first phase motor-drive circuit；The first end of the 5th pin of TLP5752 optocoupler U1 and resistance R42, resistance R29
First end connection, the second end of resistance R42 and the second end of capacitor C9, the anode of diode D13, diode D5 anode, electricity
The second end of R57, the grid connection of metal-oxide-semiconductor Q2 are hindered, the second end of resistance R29 is connect with the cathode of diode D13；TLP5752
The 6th pin of optocoupler U1 and the cathode of the second end of capacitor C8, the anode of capacitor C6, the cathode of diode D4, diode D5 connect
It connects；The 4th pin of TLP5752 optocoupler U9 and the first end of capacitor C16 are grounded；The 5th pin and resistance of TLP5752 optocoupler U9
The first end of the first end of R93, the connection of the first end of resistance R67, the second end of resistance R93 and capacitor C21, diode D17
The grid connection of anode, the anode of diode D15, the first end of resistance R97, metal-oxide-semiconductor Q6, the second end and resistance of capacitor C21
The second end of R97, the source electrode of metal-oxide-semiconductor Q6 are grounded, and the second end of resistance R67 is connect with the cathode of diode D17；TLP5752 light
The 6th pin of coupling U9 is connect with the second end of capacitor C16；
The second phase motor-drive circuit, the structure of third phase motor-drive circuit and the first phase motor-drive circuit
Structure is identical.
Further, the counter electromotive force detection circuit includes LM2901D chip U3；Draw the 2nd of LM2901D chip U3
The first phase detecting circuit is provided between foot, the 4th pin and the 5th pin, first phase detecting circuit includes concatenated resistance
R23, resistance R24, resistance R43, resistance R44, resistance R44 and the first end of resistance R52, the first end of capacitor C11, resistance R47
First end, the 4th pin of LM2901D chip U3, resistance R74 first end connection, the second end of resistance R52, capacitor C11
Second end ground connection, the second end of resistance R47 are connect with the 5th pin of LM2901D chip U3, the 2nd pin of LM2901D chip U3
It being connect with the first end of the second end of resistance R74, the first end of resistance R48, resistance R54, the second end of resistance R48 is connected to+
The second end of 3.3V voltage, resistance R54 is connect with the first end of capacitor C38；The 1st pin, the 6th pin of LM2901D chip U3
Be provided with the second phase detecting circuit between the 7th pin, the 14th pin, the 8th pin and the 9th pin of LM2901D chip U3 it
Between be provided with third phase detecting circuit；Structure and the first phase detecting circuit of second phase detecting circuit, third phase detecting circuit
Structure is identical.
Further, the current detection circuit includes SD06 chip U6；The 1st pin and resistance R32 of SD06 chip U6
First end, the first end of resistance R20, the connection of the first end of capacitor C32, the first end of the second end of resistance R32 and capacitor C36
Connection, the second end ground connection of capacitor C36；The 2nd pin of SD06 chip U6 and second of first end, resistance R20 to resistance R36
The second end connection at end, capacitor C32, the second end and the first end of capacitor C37, the first end of resistance R33, resistance of resistance R36
The first end of R31 is grounded；The 3rd pin and the first end of resistance R41, the first end of resistance R15, resistance R22 of SD06 chip U6
First end connection, the second end ground connection of resistance R15, the of the second end of the second end of resistance R41 and capacitor C37, resistance R33
The second end connection at two ends, resistance R31, the second end and the first end of resistance R49, the first end of capacitor C2, capacitor of resistance R22
The 8th pin connection of the first end of C39, the first end of inductance L2, SD06 chip U6, the of the second end of capacitor C2, capacitor C39
Two ends ground connection, the second end of inductance L2 are connected to+3.3V voltage；The 4th pin of SD06 chip U6 is grounded；The of SD06 chip U6
5 pins are connect with the second end of the first end of capacitor C43, the first end of resistance R53, resistance R49, the second end of capacitor C43, electricity
Hinder the second end ground connection of R53；The 6th pin of SD06 chip U6 is connect with the first end of the first end of capacitor C3, resistance R16, electricity
Hold the second end ground connection of C3；The 7th pin of SD06 chip U6 is connect with the first end of resistance R17, the second end and electricity of resistance R7
Hold the first end connection of C4, the second end ground connection of capacitor C4.
It further, further include power supply input circuit, switching power circuit, the first reduction voltage circuit and the second reduction voltage circuit；
The input terminal of the switching power circuit is connect with power supply input circuit, is divided into two-way after isolating transformer is depressured
Output, wherein output is connect with the first reduction voltage circuit all the way, another output is connect with external interface circuit；
First reduction voltage circuit is connect with the second reduction voltage circuit, and different voltage is provided for circuit.
Further, the power supply input circuit includes the three-phase side ST2516 bridge silicon bridge heap D2；The three-phase side ST2516 bridge silicon
The 1st pin of bridge heap D2 is connect with the first end of the first end of capacitor C19, the first end of varistor VR1, varistor VR3；
The 2nd pin and the first end of capacitor C18, the second end of varistor VR1, varistor of the three-phase side ST2516 bridge silicon bridge heap D2
The first end of VR2 connects, the 3rd pin of the three-phase side ST2516 bridge silicon bridge heap D2 and first end, the varistor VR2 of capacitor C17
Second end, the second end of varistor VR3 connection；The of the 4th pin of the three-phase side ST2516 bridge silicon bridge heap D2 and capacitor C15
One end, the first end of resistance R14, capacitor C12 cathode ground connection；The 5th pin and resistance of the three-phase side ST2516 bridge silicon bridge heap D2
The 4th pin connection of the first end, relay K1 of R9；Resistance R14 and resistance R12, resistance R13, resistance R11, resistance R10, electricity
The anode of resistance R7 series connection and capacitor C12 are connected between resistance R11 and resistance R13, the second end of resistance R7 and capacitor C15, electricity
Hinder the 2nd pin connection of the second end of R9, the anode of capacitor C13, relay K1, the cathode of capacitor C13 and the anode of capacitor C12
Connection.
Compared with prior art, the utility model has the beneficial effects that the utility model uses three-phase motor driving circuit
Brushless motor operation is driven, friction and the noise of aerator are reduced；In addition the utility model passes through to the reversed of brushless motor
The real-time detection of electromotive force and running current ensures the normal operation of circuit, can reduce the unexpected damage because of aerator to user
Caused by lose；In terms of power supply, the utility model is provided with upper electric protection, to prevent the high current that when powering on, moment is generated
Circuit is damaged.
Detailed description of the invention
Fig. 1 is the integrated circuit block diagram of an embodiment of the present invention；
Fig. 2 is the single-chip minimum system figure of an embodiment of the present invention；
Fig. 3 is the motor-drive circuit figure of an embodiment of the present invention；
Fig. 4 is the counter electromotive force detection circuit figure of an embodiment of the present invention；
Fig. 5 is the current detection circuit figure of an embodiment of the present invention；
Fig. 6 is the power supply input circuit figure of an embodiment of the present invention；
Fig. 7 is the switching power circuit figure of an embodiment of the present invention；
Fig. 8 is the first reduction voltage circuit figure of an embodiment of the present invention；
Fig. 9 is the second reduction voltage circuit figure of an embodiment of the present invention；
Figure 10 is that the communication interface circuit of an embodiment of the present invention and reception send isolates circuit diagram；
Figure 11 is the thermal protection circuit and LED display circuit figure of an embodiment of the present invention.
In figure: 101=single-chip minimum system；102- current detection circuit；103- motor-drive circuit；104- is anti-electronic
Gesture detection circuit；105- thermal protection circuit；106-LED display circuit；107- brushless motor；108- power supply input circuit；109-
Switching power circuit；The first reduction voltage circuit of 110-；The second reduction voltage circuit of 111-；112- communication interface circuit；113-, which is received, to be sent
Isolation circuit.
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.
Referring to Fig. 1, the utility model provides a kind of brushless aerator, including
Single-chip minimum system 101；Referring to figure 2., the single-chip minimum system uses STM32F030C8 chip U2,
Its pin is connect with each function module circuit, and wherein P5 is debugging interface.
Motor-drive circuit 103 is connect with single-chip minimum system 101, brushless motor 107, according to single-chip microcontroller minimum system
The control signal driving brushless motor operating of 101 output of system；Referring to figure 3., the motor-drive circuit 103 is three-phase motor drive
Dynamic circuit, including the first phase motor-drive circuit, the second phase motor-drive circuit and third phase motor-drive circuit.With the first phase
For motor-drive circuit: the first phase motor-drive circuit includes TLP5752 optocoupler U1 and TLP5752 optocoupler U9, TLP5752 light
The 1st pin of coupling U1 is connect with the first end of resistance R37, the first end of the second end of resistance R37 and resistance R51, resistance R65
First end connects and the first input end as the first phase motor-drive circuit is connected to the 29th of STM32F030C8 chip U2 and draws
Foot, the second end ground connection of resistance R51, the second end of resistance R65 are connect with the base stage of triode Q4, and the emitter of triode Q4 connects
The collector on ground, triode Q4 is connect with the first end of the first end of resistance R89, resistance R90, the second end and electricity of resistance R89
The first end of resistance R95 connects and the second input terminal as the first phase motor-drive circuit is connected to STM32F030C8 chip U2
The 26th pin, resistance R95 second end ground connection；The 4th pin of TLP5752 optocoupler U1 and first end, the capacitor C6 of capacitor C8
The drain electrode of source electrode, metal-oxide-semiconductor Q6 of cathode, the first end of capacitor C9, the first end of resistance R57, metal-oxide-semiconductor Q2 be connected to first
The output end of phase motor-drive circuit is connected on brushless motor；The 5th pin of TLP5752 optocoupler U1 and the first of resistance R42
The first end connection at end, resistance R29, the second end and the second end of capacitor C9, the anode of diode D13, diode of resistance R42
The grid connection of the anode of D5, the second end of resistance R57, metal-oxide-semiconductor Q2, the second end of resistance R29 and the cathode of diode D13 connect
It connects；The 6th pin of TLP5752 optocoupler U1 and the second end of capacitor C8, the anode of capacitor C6, diode D4 cathode, diode
The cathode of D5 connects；The 4th pin of TLP5752 optocoupler U9 and the first end of capacitor C16 are grounded；Draw the 5th of TLP5752 optocoupler U9
Foot is connect with the first end of the first end of resistance R93, resistance R67, the second end of resistance R93 and first end, two poles of capacitor C21
The grid connection of the anode of pipe D17, the anode of diode D15, the first end of resistance R97, metal-oxide-semiconductor Q6, the second end of capacitor C21
It is grounded with the second end of resistance R97, the source electrode of metal-oxide-semiconductor Q6, the second end of resistance R67 is connect with the cathode of diode D17；
The 6th pin of TLP5752 optocoupler U9 is connect with the second end of capacitor C16；Second phase motor-drive circuit, third phase motor driven
The structure of circuit is identical with the structure of the first phase motor-drive circuit.It is noted that in Fig. 3, the anode of diode D4, two
The anode of pole pipe D6, the anode of diode D19 are also connect with the first end of the first end of resistance R99, resistance R100 jointly, resistance
The second end of R99 and the second end of resistance R100, the first end of capacitor C28, the anode of capacitor C27, capacitor C23 anode, electricity
The first end for feeling L4 connects, the cathode ground connection of the second end of capacitor C28, the cathode of capacitor C27, capacitor C23, and the second of inductance L4
End is connected to+15V.Three-phase motor driving circuit is issued by the 26th pin to the 31st pin of STM32F030C8 chip U2
The operating for controlling signal control brushless motor, plays the purpose of driving brushless motor.
Counter electromotive force detection circuit 104 connect 103 with single-chip minimum system 101, motor-drive circuit, detects brushless
The inverse electromotive force of motor 107 is simultaneously sent to single-chip minimum system；Specifically, referring to figure 4., the counter electromotive force detection electricity
Road includes LM2901D chip U3；The inspection of the first phase is provided between the 2nd pin of LM2901D chip U3, the 4th pin and the 5th pin
Slowdown monitoring circuit, first phase detecting circuit include concatenated resistance R23, resistance R24, resistance R43, resistance R44, resistance R44 with
The first end of resistance R52, the first end of capacitor C11, the first end of resistance R47, LM2901D chip U3 the 4th pin, resistance
The first end of R74 connects, the second end of resistance R52, the second end of capacitor C11 ground connection, the second end and LM2901D of resistance R47
The 5th pin of chip U3 connects, the second end of the 2nd pin of LM2901D chip U3 and resistance R74, the first end of resistance R48,
The first end of resistance R54 connects, and the second end of resistance R48 is connected to+3.3V voltage, and the second end of resistance R54 is with capacitor C38's
First end connection；It is provided with the second phase detecting circuit between the 1st pin of LM2901D chip U3, the 6th pin and the 7th pin,
Third phase detecting circuit is provided between the 14th pin of LM2901D chip U3, the 8th pin and the 9th pin；Second phase detection electricity
Road, the structure of third phase detecting circuit are identical as the structure of the first phase detecting circuit.The 12nd pin of LM2901D chip U3 connects
3rd pin on ground, LM2901D chip U3 is connect with the first end of the first end of capacitor C35, the anode of capacitor C5, inductance L3, electricity
Feel the second end connection+15V voltage of L3.LM2901D chip U3 is made of the in-phase amplifier that three amplifiers are built, and amplifies three
The inverse electromotive force of phase line generation simultaneously inputs Chip Microcomputer A/D C pin.
Current detection circuit 102 is connect with single-chip minimum system 101, brushless motor 107, detection brushless motor 107
Electric current is simultaneously sent to single-chip minimum system.Referring to figure 5., the current detection circuit includes SD06 chip U6；SD06 chip
The 1st pin of U6 is connect with the first end of the first end of resistance R32, the first end of resistance R20, capacitor C32, and the of resistance R32
Two ends are connect with the first end of capacitor C36, the second end ground connection of capacitor C36；The 2nd pin of SD06 chip U6 with arrive resistance R36
First end, the second end of resistance R20, the connection of the second end of capacitor C32, the first of the second end of resistance R36 and capacitor C37
End, the first end of resistance R33, the first end of resistance R31 ground connection；The first end of the 3rd pin of SD06 chip U6 and resistance R41,
The first end of resistance R15, the connection of the first end of resistance R22, the second end ground connection of resistance R15, the second end and capacitor of resistance R41
The of the second end of C37, the second end of resistance R33, the connection of the second end of resistance R31, the second end of resistance R22 and resistance R49
The 8th pin connection of one end, the first end of capacitor C2, the first end of capacitor C39, the first end of inductance L2, SD06 chip U6, electricity
Hold second end, the second end of the capacitor C39 ground connection of C2, the second end of inductance L2 is connected to+3.3V voltage；The of SD06 chip U6
4 pins ground connection；The 5th pin of SD06 chip U6 and the first end of capacitor C43, the first end of resistance R53, resistance R49 second
End connection, the second end of capacitor C43, the second end of resistance R53 ground connection；The 6th pin of SD06 chip U6 and the first of capacitor C3
The first end connection at end, resistance R16, the second end ground connection of capacitor C3；The 7th pin of SD06 chip U6 and the first of resistance R17
End connection, the second end of resistance R7 are connect with the first end of capacitor C4, the second end ground connection of capacitor C4.Resistance R33 and resistance R31
To be sent to single-chip minimum system 101 after sampling the current signal of brushless motor using resistance, in overcurrent, single-chip microcontroller is most
The power supply that mini system can directly cut off brushless motor makes it stop working.
Please continue to refer to Fig. 1, the brushless aerator further includes power supply input circuit 108, switching power circuit 109,
One reduction voltage circuit 110 and the second reduction voltage circuit 111；
The input terminal of the switching power circuit 109 is connect with power supply input circuit 108, is divided after isolating transformer is depressured
For two-way output, wherein output is connect with the first reduction voltage circuit 110 all the way, another output is connect with external interface circuit；Institute
Stating external interface includes that communication interface circuit 112 and reception send isolation circuit 113.
First reduction voltage circuit 110 is connect with the second reduction voltage circuit 111, and different voltage is provided for circuit.
Fig. 6 is please referred to, the power supply input circuit 108 includes the three-phase side ST2516 bridge silicon bridge heap D2；The three-phase side ST2516
The 1st pin and the first end of capacitor C19, the first end of varistor VR1, the first end of varistor VR3 of bridge silicon bridge heap D2
Connection；The 2nd pin of the three-phase side ST2516 bridge silicon bridge heap D2 and first end, the second end of varistor VR1, the pressure of capacitor C18
The first end of quick resistance VR2 connects, the 3rd pin of the three-phase side ST2516 bridge silicon bridge heap D2 and first end, the pressure-sensitive electricity of capacitor C17
Hinder second end, the connection of the second end of varistor VR3 of VR2；The 4th pin and capacitor of the three-phase side ST2516 bridge silicon bridge heap D2
The first end of C15, the first end of resistance R14, capacitor C12 cathode ground connection；The 5th pin of the three-phase side ST2516 bridge silicon bridge heap D2
It is connect with the 4th pin of the first end of resistance R9, relay K1；Resistance R14 and resistance R12, resistance R13, resistance R11, resistance
The anode of R10, resistance R7 series connection and capacitor C12 are connected between resistance R11 and resistance R13, and the second of resistance R7 and capacitor C15
The 2nd pin connection at end, the second end of resistance R9, the anode of capacitor C13, relay K1, the cathode and capacitor C12 of capacitor C13
Anode connection.The thing being worth mentioning, the model HF152F-012-1HST of relay K1 are normally opened relay.When 380V wink
Between when powering on, the both ends of resistance R9 are reached after the three-phase side ST2516 bridge silicon bridge heap D2.The presence of R9 can prevent high current moment
Puncture capacitor C12 and capacitor C13, electric current after the end VM flows separately through resistance R6, resistance R4, resistance R2, resistance R1 from
The 14th pin of STM32F030C8 chip U2 inputs, and powers for STM32F030C8 chip U2.Then STM32F030C8 chip U2
The 22nd pin exports a signal to the second end of resistance R5 from, and control relay K1 closure, resistance R9 is short-circuited at this time, whole
Electric current after stream flows directly into capacitor C12 and capacitor C13.Resistance R9 is varistor, realizes the effect of electric protection, is prevented
The high current that only powered on moment generates punctures capacitor C12 and capacitor C13, has ensured the normal operation of circuit.
Fig. 7 is please referred to, the switching power circuit 109 separates two-way output, all the way after isolating transformer FF20 decompression
E+9V and E+5V is exported, is powered for external interface circuit, another output+15V is connect with the first reduction voltage circuit.Please refer to Fig. 8
And+15V voltage is reduced to+5V voltage by Fig. 9, the first reduction voltage circuit 110 ,+5V voltage is reduced to+3.3V by the second reduction voltage circuit 111
Voltage, and filtered through L1, generation+A3.3V voltage, it is that each functional circuit module of circuit is powered.Please refer to Figure 10, communication interface
Circuit 112 includes interface P4, is used for and external device communication, reception send isolation circuit 113 by two optocoupler U10 and U7 groups
At, it is arranged between communication interface circuit 112 and single-chip minimum system 101, interference of the field device to circuit is isolated, with
Internal control circuit is protected to work normally.Please continue to refer to Fig. 1, brushless aerator further includes that thermal protection circuit 105 and LED are shown
Circuit 106 specifically please refers to 11, and thermal protection circuit 105 includes thermosensitive circuit RT1, and thermistor RT1 is close to dissipating for brushless motor
Hot device obtains its temperature signal, is then forwarded to single-chip minimum system.LED display circuit includes light emitting diode D3, according to list
The signal that piece machine minimum system issues realizes lighting or extinguishing for light emitting diode, realizes the instruction of circuit state.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (7)
1. a kind of brushless aerator, which is characterized in that including
Single-chip minimum system；
Motor-drive circuit is connect with single-chip minimum system, brushless motor, is believed according to the control of single-chip minimum system output
The operating of number driving brushless motor；
Counter electromotive force detection circuit is connect with single-chip minimum system, motor-drive circuit, detects the reversed electronic of brushless motor
Gesture is simultaneously sent to single-chip minimum system；
Current detection circuit is connect with single-chip minimum system, brushless motor, is detected the electric current of brushless motor and is sent to monolithic
Machine minimum system.
2. brushless aerator according to claim 1, which is characterized in that the single-chip minimum system uses
STM32F030C8 chip U2.
3. brushless aerator according to claim 2, which is characterized in that the motor-drive circuit is three-phase motor driving
Circuit, including the first phase motor-drive circuit, the second phase motor-drive circuit and third phase motor-drive circuit；
The first phase motor-drive circuit includes the 1 of TLP5752 optocoupler U1 and TLP5752 optocoupler U9, TLP5752 optocoupler U1
Pin is connect with the first end of resistance R37, and the second end of resistance R37 and first end, the first end of resistance R65 of resistance R51 connect
Connect the first input end as the first phase motor-drive circuit, the second end ground connection of resistance R51, the second end of resistance R65 and three
The base stage of pole pipe Q4 connects, the emitter ground connection of triode Q4, the collector of triode Q4 and first end, the resistance of resistance R89
The first end of R90 connects, and the second end of resistance R89 and the first end of resistance R95 are connected to the first phase motor-drive circuit
Second input terminal, the second end ground connection of resistance R95；The 4th pin of TLP5752 optocoupler U1 and first end, the capacitor C6 of capacitor C8
The drain electrode of source electrode, metal-oxide-semiconductor Q6 of cathode, the first end of capacitor C9, the first end of resistance R57, metal-oxide-semiconductor Q2 be connected to first
The output end of phase motor-drive circuit；The first of the first end of the 5th pin of TLP5752 optocoupler U1 and resistance R42, resistance R29
End connection, the second end and the second end of capacitor C9, the anode of diode D13, the anode of diode D5, resistance R57 of resistance R42
Second end, metal-oxide-semiconductor Q2 grid connection, the second end of resistance R29 connect with the cathode of diode D13；TLP5752 optocoupler U1
The 6th pin connect with the cathode of the second end of capacitor C8, the anode of capacitor C6, the cathode of diode D4, diode D5；
The 4th pin of TLP5752 optocoupler U9 and the first end of capacitor C16 are grounded；The 5th pin of TLP5752 optocoupler U9 is with resistance R93's
The first end of first end, the connection of the first end of resistance R67, the second end of resistance R93 and capacitor C21, diode D17 anode,
The grid connection of the anode of diode D15, the first end of resistance R97, metal-oxide-semiconductor Q6, the second end of capacitor C21 is with resistance R97's
The source electrode ground connection of second end, metal-oxide-semiconductor Q6, the second end of resistance R67 are connect with the cathode of diode D17；TLP5752 optocoupler U9's
6th pin is connect with the second end of capacitor C16；
The structure of the second phase motor-drive circuit, the structure of third phase motor-drive circuit and the first phase motor-drive circuit
It is identical.
4. brushless aerator according to claim 2, which is characterized in that the counter electromotive force detection circuit includes
LM2901D chip U3；The first phase detection electricity is provided between the 2nd pin of LM2901D chip U3, the 4th pin and the 5th pin
Road, first phase detecting circuit include concatenated resistance R23, resistance R24, resistance R43, resistance R44, resistance R44 and resistance
The first end of R52, the first end of capacitor C11, the first end of resistance R47, the 4th pin of LM2901D chip U3, resistance R74
First end connection, the second end of resistance R52, the second end of capacitor C11 ground connection, the second end and LM2901D chip U3 of resistance R47
The connection of the 5th pin, the 2nd pin of LM2901D chip U3 and the second end of resistance R74, the first end of resistance R48, resistance R54
First end connection, the second end of resistance R48 is connected to+3.3V voltage, the second end of resistance R54 and the first end of capacitor C38
Connection；It is provided with the second phase detecting circuit between the 1st pin of LM2901D chip U3, the 6th pin and the 7th pin, LM2901D
Third phase detecting circuit is provided between the 14th pin of chip U3, the 8th pin and the 9th pin；Second phase detecting circuit, third
The structure of phase detecting circuit is identical as the structure of the first phase detecting circuit.
5. brushless aerator according to claim 2, which is characterized in that the current detection circuit includes SD06 chip
U6；The 1st pin of SD06 chip U6 is connect with the first end of the first end of resistance R32, the first end of resistance R20, capacitor C32,
The second end of resistance R32 is connect with the first end of capacitor C36, the second end ground connection of capacitor C36；The 2nd pin of SD06 chip U6
It is connect with the second end of first end, resistance R20, the second end of capacitor C32 to resistance R36, the second end and capacitor of resistance R36
The first end of C37, the first end of resistance R33, the first end of resistance R31 ground connection；The 3rd pin and resistance R41 of SD06 chip U6
First end, the first end of resistance R15, the connection of the first end of resistance R22, the second end ground connection of resistance R15, the of resistance R41
Two ends are connect with the second end of the second end of capacitor C37, the second end of resistance R33, resistance R31, the second end and electricity of resistance R22
The resistance first end of R49, the first end of capacitor C2, the first end of capacitor C39, the first end of inductance L2, SD06 chip U6 the 8th draw
Foot connection, the second end of capacitor C2, the second end of capacitor C39 ground connection, the second end of inductance L2 are connected to+3.3V voltage；SD06
The 4th pin of chip U6 is grounded；The 5th pin and the first end of capacitor C43, the first end of resistance R53, resistance of SD06 chip U6
The second end of R49 connects, the second end of capacitor C43, the second end of resistance R53 ground connection；The 6th pin and capacitor of SD06 chip U6
The first end of C3, the connection of the first end of resistance R16, the second end ground connection of capacitor C3；The 7th pin and resistance of SD06 chip U6
The first end of R17 connects, and the second end of resistance R7 is connect with the first end of capacitor C4, the second end ground connection of capacitor C4.
6. brushless aerator according to claim 2, which is characterized in that further include power supply input circuit, switch power supply
Road, the first reduction voltage circuit and the second reduction voltage circuit；
The input terminal of the switching power circuit is connect with power supply input circuit, and it is defeated to be divided into two-way after isolating transformer is depressured
Out, it is connect wherein exporting all the way with the first reduction voltage circuit, another output is connect with external interface circuit；
First reduction voltage circuit is connect with the second reduction voltage circuit, and different voltage is provided for circuit.
7. brushless aerator according to claim 6, which is characterized in that the power supply input circuit includes ST2516 three-phase
Square bridge silicon bridge heap D2；The of the first end of the 1st pin of the three-phase side ST2516 bridge silicon bridge heap D2 and capacitor C19, varistor VR1
The first end connection of one end, varistor VR3；The 2nd pin of the three-phase side ST2516 bridge silicon bridge heap D2 and the first of capacitor C18
End, the second end of varistor VR1, the connection of the first end of varistor VR2, the 3rd of the three-phase side ST2516 bridge silicon bridge heap D2 is drawn
Foot is connect with the second end of the first end of capacitor C17, the second end of varistor VR2, varistor VR3；The three-phase side ST2516
The 4th pin of bridge silicon bridge heap D2 and the cathode of the first end of capacitor C15, the first end of resistance R14, capacitor C12 are grounded；ST2516
The 5th pin of three-phase side bridge silicon bridge heap D2 is connect with the 4th pin of the first end of resistance R9, relay K1；Resistance R14 and resistance
R12, resistance R13, resistance R11, resistance R10, resistance R7 series connection and capacitor C12 anode be connected to resistance R11 and resistance R13 it
Between, resistance R7 and the 2nd pin of the second end of capacitor C15, the second end of resistance R9, the anode of capacitor C13, relay K1 connect
It connects, the cathode of capacitor C13 is connect with the anode of capacitor C12.
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| CN201822092327.2U CN209030128U (en) | 2018-12-13 | 2018-12-13 | A kind of brushless aerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110692587A (en) * | 2019-11-06 | 2020-01-17 | 丁晶 | Fish pond oxygen-increasing machine based on friction electricity generation principle |
| CN111525846A (en) * | 2020-04-29 | 2020-08-11 | 南京理工大学 | Many rotors patrol and fly unmanned aerial vehicle actuating mechanism drive arrangement |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110692587A (en) * | 2019-11-06 | 2020-01-17 | 丁晶 | Fish pond oxygen-increasing machine based on friction electricity generation principle |
| CN111525846A (en) * | 2020-04-29 | 2020-08-11 | 南京理工大学 | Many rotors patrol and fly unmanned aerial vehicle actuating mechanism drive arrangement |
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