CN106803733A - A kind of electric motor intelligent electricity saver - Google Patents
A kind of electric motor intelligent electricity saver Download PDFInfo
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- CN106803733A CN106803733A CN201510829970.7A CN201510829970A CN106803733A CN 106803733 A CN106803733 A CN 106803733A CN 201510829970 A CN201510829970 A CN 201510829970A CN 106803733 A CN106803733 A CN 106803733A
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Abstract
The present invention discloses a kind of electric motor intelligent electricity saver, including direct current regulation circuit, pulse-width modulation circuit, half-bridge drive circuit and high-frequency isolation transforming circuit, the direct current regulation circuit includes transformer, bridge rectifier, filter capacitor, current-limiting resistance and voltage-regulator diode.The pulse-width modulation circuit includes core TL494CN, and the pin 8 of the chip TL494CN is connected with the positive pole of the voltage-regulator diode, and the pin 9 and pin 10 of the chip TL494CN are drive signal output end；The half-bridge drive circuit includes FET and FET, the G poles of the FET are connected with the pin 9 of the chip TL494CN, the G poles of the FET Q2 are connected with the pin 10 of the chip TL494CN, and input of the D poles of the FET with the D poles of the FET respectively with the high-frequency isolation transforming circuit is connected.
Description
Technical field
The present invention relates to a kind of electricity-saving appliance, more particularly, it relates to a kind of electric motor intelligent electricity saver.
Background technology
Electric motor saver is the load factor size according to motor, on the basis of Rated motor rotating speed is not changed,
Power input to a machine is adjusted at any time, it is ensured that motor stable operation under Optimal load coefficient, reduce the copper of motor
Damage, iron loss, stray loss and added losses so that while electrical machinery life is extended, also significantly carry
The operational efficiency of motor high, so as to reach the purpose of economize on electricity.Current domestic motor and developed country's phase
The phenomenon more relatively low than generally existing operational efficiency, because considering voltage ripple of power network, apparatus overload, machine
The factors such as tool abrasion so that 30% power surplus typically can be all left when motor apparatus are selected.And
These equipment reach the little of its rated designs in actual moving process, and so as to cause, " big horse traction is small
The wasting phenomenon of car ".This phenomenon is very universal, especially as oil pumper, disintegrating machine, injection machine, trombone slide
Machine, roots blower, makita 4100NH, air compressor machine, electric saw, elevator, crane gear, car, plane, brill,
Various process equipments such as milling etc..Often load factor is relatively low for these equipment, and operational efficiency is lower, waste of energy ten
Divide surprising.In this case, these small load variations can be effectively tracked using electric motor saver,
It is just automatic when motor is in zero load, underloading, middle load to reduce electric moter voltage, less for a little electric energy, when changing to again
During load, and automatic following up supply more a little electric energy, it is ensured that motor safe handling, how much need to supply how much, maximum
The saving electric energy of limit.
The content of the invention
Present invention aim in view of the shortcomings of the prior art, there is provided one kind saves electric energy, provides safe voltage stabilizing
The electric motor intelligent electricity saver of electric current.
A kind of electric motor intelligent electricity saver of the present invention, including direct current regulation circuit, pulse-width modulation circuit, half
Bridge drive circuit and high-frequency isolation transforming circuit, the direct current regulation circuit include transformer, bridge rectifier electricity
Road, filter capacitor, current-limiting resistance and voltage-regulator diode, the voltage input end of the transformer and the economize on electricity
The power supply connection of device, the voltage output end of the transformer connects with the input of the bridge rectifier
Connect, the bridge rectifier is parallel with one another with the filter capacitor, the filter capacitor and the voltage stabilizing two
The negative pole of pole pipe is grounded, with the pole of the voltage stabilizing two after the positive pole series connection current-limiting resistance of the filter capacitor
The positive pole connection of pipe；The pulse-width modulation circuit includes chip TL494CN, the pin of the chip TL494CN
8 are connected with the positive pole of the voltage-regulator diode, the pin 1 of the chip TL494CN, pin 7, pin 13,
Pin 14 and pin 15 are grounded, and the pin 9 and pin 10 of the chip TL494CN are drive signal output
End；The half-bridge drive circuit include FET and FET, the G poles of the FET with it is described
The pin 9 of chip TL494CN is connected, the pin of the G poles of the FET and the chip TL494CN
10 connections, the S poles of the FET and the S of the FET are extremely grounded, the FET
The input of the D poles respectively with the high-frequency isolation transforming circuit of D poles and the FET be connected；
The high-frequency isolation transforming circuit includes transformer and at least 2 thyristor diodes, the transformer
Primary coil two-end-point be connected with the D poles of the FET respectively at the D poles of the FET,
The variable end-point of the primary coil of the transformer connects with the positive pole of the voltage-regulator diode of the direct current regulation circuit
Connect；The secondary coil of the transformer is connected with the positive pole of at least 2 thyristor diodes.
Also include circuit overcurrent protection, the circuit overcurrent protection includes diode, dropping resistor, electricity
Solution electric capacity and bidirectional trigger diode, the positive pole of the diode connect with the power supply positive pole of the electricity-saving appliance
Connect, the negative pole of the diode is connected with one end of the dropping resistor, the other end point of the dropping resistor
Do not connected in the positive pole of the electrochemical capacitor and one end of the bidirectional trigger diode, the electrochemical capacitor
Negative pole is grounded, and the other end of the bidirectional trigger diode is connected with the pin 16 of the chip TL494CN.
Further, the dropping resistor R1 is 10K Ω/1w, and the electrochemical capacitor is 50V/220UF.
Further, the transformer T1 be by 380V photovoltaic conversions for 20V voltages transformer.
Further, the bridge rectifier includes diode D1, D2, D3 and D4, the diode
After D1 and D2 series connection, the circuit after being connected with the diode D3 and D4 is parallel with one another.
Further, it is grounded after the pin 5 of the chip TL494CN and capacitances in series,
The electric capacity is 50V/0.1UF.
Further, it is grounded after the pin 6 of the chip TL494CN is connected with resistance R3, the resistance
It is 1K Ω/0.25w.
Further, the angle of flow after the thyristor diode in the high-frequency isolation transforming circuit is opened is
170 degree.
The present invention provides a kind of electric motor intelligent electricity saver, by direct current regulation circuit realize powering motor it is steady
Voltage-controlled system, the control of the power frequency for realizing powering motor by pulse-width modulation circuit and half-bridge drive circuit,
And the rectified action for passing through thyristor diode, the steady of output current is further ensured, meanwhile, pass through
High-frequency isolation transforming circuit, exports trigger signal, it is ensured that motor safety is operated, and electric energy is saved to greatest extent；
The present invention by the angle of flow of above-mentioned control circuit controling thyristor, make the supply voltage of motor from 280V to
The time of 10s is only needed up to 380V, so as to realize the soft start function of electricity-saving appliance；Meanwhile, the present invention is also led to
Circuit overcurrent protection is crossed, protection of the electricity-saving appliance itself to overvoltage and overcurrent is realized, it is to avoid accident occurs,
Ensure the safety of component in electricity-saving appliance, extend the service life of electricity-saving appliance.
Specific embodiment
A kind of electric motor intelligent electricity saver of the present invention, including direct current regulation circuit, pulse-width modulation circuit,
Half-bridge drive circuit and high-frequency isolation transforming circuit, the direct current regulation circuit include transformer, bridge rectifier
Circuit, filter capacitor, current-limiting resistance and voltage-regulator diode, the voltage input end of the transformer and the section
The power supply connection of electrical equipment, the input of the voltage output end of the transformer and the bridge rectifier
Connection, the bridge rectifier is parallel with one another with the filter capacitor, the filter capacitor and the voltage stabilizing
The negative pole of diode is grounded, with the voltage stabilizing two after the positive pole series connection current-limiting resistance of the filter capacitor
The positive pole connection of pole pipe；The pulse-width modulation circuit includes chip TL494CN, the chip TL494CN's
Pin 8 is connected with the positive pole of the voltage-regulator diode, the pin 1 of the chip TL494CN, pin 7, pin 13,
Pin 14 and pin 15 are grounded, and the pin 9 and pin 10 of the chip TL494CN are drive signal output
End；The half-bridge drive circuit include FET and FET, the G poles of the FET with it is described
The pin 9 of chip TL494CN is connected, the pin of the G poles of the FET and the chip TL494CN
10 connections, the S poles of the FET and the S of the FET are extremely grounded, the FET
The input of the D poles respectively with the high-frequency isolation transforming circuit of D poles and the FET be connected；
The high-frequency isolation transforming circuit includes transformer and at least 2 thyristor diodes, the transformer
Primary coil two-end-point be connected with the D poles of the FET respectively at the D poles of the FET,
The variable end-point of the primary coil of the transformer connects with the positive pole of the voltage-regulator diode of the direct current regulation circuit
Connect；The secondary coil of the transformer is connected with the positive pole of at least 2 thyristor diodes.
Also include circuit overcurrent protection, the circuit overcurrent protection includes diode, dropping resistor, electricity
Solution electric capacity and bidirectional trigger diode, the positive pole of the diode connect with the power supply positive pole of the electricity-saving appliance
Connect, the negative pole of the diode is connected with one end of the dropping resistor, the other end point of the dropping resistor
Do not connected in the positive pole of the electrochemical capacitor and one end of the bidirectional trigger diode, the electrochemical capacitor
Negative pole is grounded, and the other end of the bidirectional trigger diode is connected with the pin 16 of the chip TL494CN.
Further, the dropping resistor R1 is 10K Ω/1w, and the electrochemical capacitor is 50V/220UF.
Further, the transformer T1 be by 380V photovoltaic conversions for 20V voltages transformer.
Further, the bridge rectifier includes diode D1, D2, D3 and D4, the diode
After D1 and D2 series connection, the circuit after being connected with the diode D3 and D4 is parallel with one another.
Further, it is grounded after the pin 5 of the chip TL494CN and capacitances in series,
The electric capacity is 50V/0.1UF.
Further, it is grounded after the pin 6 of the chip TL494CN is connected with resistance R3, the resistance
It is 1K Ω/0.25w.
Further, the angle of flow after the thyristor diode in the high-frequency isolation transforming circuit is opened is
170 degree.
Claims (2)
1. a kind of electric motor intelligent electricity saver, it is characterised in that including direct current regulation circuit, pulse-width modulation circuit, half
Bridge drive circuit and high-frequency isolation transforming circuit, the direct current regulation circuit include transformer, bridge rectifier electricity
Road, filter capacitor, current-limiting resistance and voltage-regulator diode, the voltage input end of the transformer and the economize on electricity
The power supply connection of device, the voltage output end of the transformer connects with the input of the bridge rectifier
Connect, the bridge rectifier is parallel with one another with the filter capacitor, the filter capacitor and the voltage stabilizing two
The negative pole of pole pipe is grounded, with the pole of the voltage stabilizing two after the positive pole series connection current-limiting resistance of the filter capacitor
The positive pole connection of pipe；The pulse-width modulation circuit includes chip TL494CN, the chip TL494CN's
Pin 8 is connected with the positive pole of the voltage-regulator diode, the pin 1 of the chip TL494CN, pin 7, pin 13,
Pin 14 and pin 15 are grounded, and the pin 9 and pin 10 of the chip TL494CN are drive signal output end；
The half-bridge drive circuit includes FET and FET, G poles and the chip of the FET
The pin 9 of TL494CN is connected, the pin 10 of the G poles of the FET and the chip TL494CN
Connection, the S poles of the FET and the S of the FET are extremely grounded, the D of the FET
Input of the D poles of pole and the FET Q2 respectively with the high-frequency isolation transforming circuit is connected；
At the beginning of the high-frequency isolation transforming circuit includes transformer and at least 2 thyristor diodes, the transformer
Level coil two-end-point is connected respectively at the D poles of the FET with the D poles of the FET, described
The variable end-point of the primary coil of transformer is connected with the positive pole of the voltage-regulator diode of the direct current regulation circuit；
The secondary coil of the transformer is connected with the positive pole of at least 2 thyristor diodes.
2. a kind of electric motor intelligent electricity saver according to claim 1, it is characterised in that also including over current protection
Protection circuit, the circuit overcurrent protection includes diode, dropping resistor, electrochemical capacitor and two-way triggering two
Pole pipe, the positive pole of the diode is connected with the power supply positive pole of the electricity-saving appliance, the diode it is negative
Pole is connected with one end of the dropping resistor, and the other end of the dropping resistor is respectively at the electrochemical capacitor
One end connection of positive pole and the bidirectional trigger diode, the negative pole ground connection of the electrochemical capacitor is described two-way
The other end of diac is connected with the pin 16 of the chip TL494CN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510829970.7A CN106803733A (en) | 2015-11-25 | 2015-11-25 | A kind of electric motor intelligent electricity saver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510829970.7A CN106803733A (en) | 2015-11-25 | 2015-11-25 | A kind of electric motor intelligent electricity saver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106803733A true CN106803733A (en) | 2017-06-06 |
Family
ID=58976487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510829970.7A Pending CN106803733A (en) | 2015-11-25 | 2015-11-25 | A kind of electric motor intelligent electricity saver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106803733A (en) |
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2015
- 2015-11-25 CN CN201510829970.7A patent/CN106803733A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170606 |