CN107579694A - A kind of electricity-saving appliance of motor - Google Patents
A kind of electricity-saving appliance of motor Download PDFInfo
- Publication number
- CN107579694A CN107579694A CN201711036108.6A CN201711036108A CN107579694A CN 107579694 A CN107579694 A CN 107579694A CN 201711036108 A CN201711036108 A CN 201711036108A CN 107579694 A CN107579694 A CN 107579694A
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- Prior art keywords
- motor
- optocoupler
- triode
- electricity
- resistance
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 22
- 239000010703 silicon Substances 0.000 claims abstract description 22
- 230000002457 bidirectional effect Effects 0.000 claims description 22
- 230000005693 optoelectronics Effects 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 230000005622 photoelectricity Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000009183 running Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Control Of Ac Motors In General (AREA)
Abstract
The present invention relates to a kind of electricity-saving appliance of motor, supported the use with little power single phase motor.It includes the controllable silicon SCR being serially connected in single-phase motor MD current supply circuits, trigger the triggers circuit of controlled silicon conducting, described triggers circuit includes current transformer LH, triode T1, optocoupler GE1, the electric current Ia of motor is converted to corresponding voltage Ui by current transformer, after the rectified circuit rectifies of voltage Ui, pulse signal is produced near waveform pass zero point by triode T1, controllable silicon is triggered by optocoupler GE1, when the power factor of motor reduces, reduce the angle of flow of controllable silicon, the terminal voltage of motor reduces, the power factor of motor rises, power savings are up to 20%.The electronic component used present invention eliminates traditional phase detecting circuit is less, reduces fault rate；Because the volume of electricity-saving appliance can be substantially reduced, be easily installed in the terminal box of motor, can with it is electronic machine integrated.
Description
Technical field
The present invention relates to a kind of electricity-saving appliance of motor, its terminal voltage by adjusting motor, reach the purpose of economize on electricity,
It can be supported the use with little power single phase motor.
Background technology
Its structure of existing electric motor electricity saver generally comprises controllable silicon, phase detecting circuit, comparison circuit, triggers circuit
And working power, wherein phase detecting circuit are used for detecting the phase between supply voltage and motor current, phase-detection
Circuit includes current transformer, step-down transformer and some electronic components；Comparison circuit enters phase signal and a setting value
Row compares, and triggers circuit exports the trigger signal of triggering controllable silicon according to comparative result, and working power will be set in addition, to compare
Circuit, triggers circuit provide operating voltage.The structure of this kind of electricity-saving appliance is more complicated, and production cost is high, is unfavorable for promoting.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of electricity-saving appliance of motor, and its is simple in construction, the electronics used
Element is few, and has preferable power savings.
The technical scheme is that a kind of electricity-saving appliance of motor, it, which includes being serially connected in single-phase motor MD, powers back
Bidirectional triode thyristor SCR, the triggers circuit of triggering bidirectional triode thyristor conducting in road, it is characterized in that, described triggers circuit includes
Current transformer LH, triode T1, optocoupler GE1, optocoupler GE2, current transformer LH primary coil are serially connected in the confession of motor
In electrical circuit, current transformer LH secondary coil is connected with the input of a bridge rectifier QL1, bridge rectifier QL1's
The negative pole ground connection of output end, the positive pole of bridge rectifier QL1 output end connect triode T1 base stage, triode by resistance R1
T1 base stage is grounded by optocoupler GE2 photo resistance, and the emitter stage of triode connects the output end of working power by resistance R5
VDD, the emitter stage of triode connect voltage-stabiliser tube DW1 negative electrode, voltage-stabiliser tube DW1 plus earth, and the colelctor electrode of triode passes through electricity
Resistance R2 connects the anode of optocoupler GE1 light emitting diode, and the minus earth of optocoupler GE1 light emitting diode, optocoupler GE1 photoelectricity can
One end of control silicon connects bidirectional triode thyristor SCR anode by resistance R4, another termination bidirectional triode thyristor SCR's of optoelectronic controlled silicon
Control pole, the anode of optocoupler GE2 photodiode connect the output end VDD of working power, optocoupler GE2 light by resistance R3
The negative pole ground connection of electric diode；Diode D1 anode is connected with the positive pole of full-wave rectifier QL1 output ends, diode D1 the moon
Pole is grounded by electric capacity C1, the tie point between diode D1 negative electrode and electric capacity C1 be working power output end VDD, photoelectricity
Button QA is connected between the both ends of controllable silicon.
It is a feature of the present invention that the electric current Ia of motor is converted to corresponding voltage Ui, voltage Ui warp by current transformer
After rectifier circuit rectifies, the pulse signal of triggering bidirectional triode thyristor is produced near its waveform pass zero point, when the power of motor
Factor reduce when, the electric current of motor can be lagged more, triggered the pulse signal of bidirectional triode thyristor and can also be lagged generation, make it is two-way can
The angle of flow for controlling silicon reduces, and the terminal voltage of motor reduces, and the power factor of motor rises.In addition in voltage Ui rectification circuits
Rear class be provided with filter circuit, the working power as triggers circuit again.Present invention eliminates traditional phase detecting circuit, together
Shi Liyong current transformers provide the power supply of synchronizing signal and electronic circuit so that the electronic line structure of electricity-saving appliance subtracts significantly
Change, the high-pressure section of electricity-saving appliance circuit transmits signal without direct electrical connection with low-pressure section by coupling, in debugging low voltage section
Timesharing, operative employee is avoided to get an electric shock.
Brief description of the drawings
Fig. 1 is the electrical schematic diagram of the present invention.
When Fig. 2 is rated load, the oscillogram of each reference point in Fig. 1.
When Fig. 3 is Smaller load, the oscillogram of each reference point in Fig. 1.
Fig. 4 is shell structure figure.
Embodiment
In conjunction with the embodiment of the brief description of the drawings present invention.
A kind of electricity-saving appliance of motor, its bidirectional triode thyristor SCR for including being serially connected in single-phase motor MD current supply circuits,
Trigger the triggers circuit of bidirectional triode thyristor conducting.
Described triggers circuit includes current transformer LH, triode T1, optocoupler GE1, optocoupler GE2, current transformer LH
Primary coil be serially connected in the current supply circuit of motor, current transformer LH secondary coil and a bridge rectifier QL1's
Input connects, and the negative pole ground connection of bridge rectifier QL1 output end, the positive pole of bridge rectifier QL1 output end passes through electricity
Resistance R1 connects triode T1 base stage, and triode T1 base stage is grounded by optocoupler GE2 photo resistance, and the emitter stage of triode leads to
The output end VDD that resistance R5 connects working power is crossed, the emitter stage of triode connects voltage-stabiliser tube DW1 negative electrode, voltage-stabiliser tube DW1 anode
Ground connection, the colelctor electrode of triode connect the anode of optocoupler GE1 light emitting diode, optocoupler GE1 light emitting diode by resistance R2
Minus earth, one end of optocoupler GE1 optoelectronic controlled silicon connects bidirectional triode thyristor SCR anode by resistance R4, and photoelectricity is controllable
Another termination bidirectional triode thyristor SCR of silicon control pole, button QA is connected between the both ends of optoelectronic controlled silicon；Optocoupler GE2 light
The anode of electric diode meets the output end VDD of working power by resistance R3, and the negative pole of optocoupler GE2 photodiode connects
Ground.
Optocoupler GE1 model TLP160G or TLP525G.
The circuit of working power is that diode D1 anode is connected with the positive pole of full-wave rectifier QL1 output ends, diode
D1 negative electrode is grounded by electric capacity C1, and the tie point between diode D1 negative electrode and electric capacity C1 is the output end of working power
VDD。
Operation principle is that the current signal of motor is converted to corresponding voltage signal Ui by current transformer LH（Such as Fig. 2
Shown in middle curve 2）, full-wave rectifier QL1 is to voltage signal Ui progress full-wave rectifications, the photo resistance through resistance R1, optocoupler GE2
Partial pressure is applied in triode T1 base stage, and the waveform of triode T1 base voltage is as shown in curve 4 in Fig. 2, voltage-stabiliser tube DW1
There is provided a reference voltage, curve 3 in the waveform such as Fig. 2 of reference voltage（Straight line）It is shown, when triode T1 base voltage is less than
Or during equal to reference voltage, triode T1 conductings, trigger pulse T is formed on optocoupler GE1 light emitting diode（Waveform 5 in Fig. 2
It is shown）, optocoupler GE1 optoelectronic controlled silicon conducting, optoelectronic controlled silicon triggering bidirectional triode thyristor SCR, the area of bidirectional triode thyristor conducting
Domain is as shown in the dash area of curve 6 in Fig. 2.The bidirectional triode thyristor angle of flow is 180 degree in Fig. 2, and the terminal voltage of motor is volume
Determine voltage, be rated load operation state corresponding to motor.
In Smaller load running, power factor declines, the voltage u waveforms of the current waveform of motor with respect to civil power
（As shown in curve 1 in Fig. 3）Move to right, trigger pulse T is moved to right, and the angle of flow of bidirectional triode thyristor reduces（Such as the institute of curve 6 in Fig. 3
Show）, the terminal voltage decline of motor, the exciting current decline of motor, power factor rising.
Because electric current Ia phase is to lag behind voltage u phase all the time, and trigger pulse T is same with electric current Ia phase
Step, produced when trigger pulse T is near electric current Ia zero passages, the angle of flow of such bidirectional triode thyristor is less than 180 degree, when electronic
For machine in rated load operation, the terminal voltage of motor cannot reach rated voltage；To solve this problem, selection can be passed through
Resistance R1 and the resistance of photo resistance, the waveform of base voltage is become flat, trigger pulse T width is prolonged in the both sides of zero crossing
Stretch, increase the width of trigger pulse, shift to an earlier date the turn-on instant of bidirectional triode thyristor, meet motor in rated load operation,
The angle of flow of bidirectional triode thyristor reaches 180 degree.But the electric current Ia of motor is change, when electric current Ia reduces, base voltage
Also it is more flat to reduce its waveform, trigger pulse T width can be wider, and the control of the change of phase to the angle of flow of bidirectional triode thyristor is not
Substantially, the regulating effect of terminal voltage of motor reduces；The purpose for setting optocoupler GE2 is to make base voltage stable, and its principle is, when
During the load increase of motor, electric current Ia can increase, and voltage signal Ui also correspondingly increases, triode T1 base voltage liter
Height, the electric current for flowing through optocoupler GE2 light emitting diode also increase accordingly, and the resistance of optocoupler GE2 photo resistance reduces, three poles
Pipe T1 base voltage reduces, and makes base voltage stable.
Optocoupler GE2 model VTL5C2, its performance are the resistances of photo resistance when the electric current increase of light emitting diode
Reduce, vice versa；Other performance identical elements also can be selected in optocoupler GE2；Coordinate selection resistance R3 and resistance R1 resistance
Triode T1 base voltage can be made stable, select voltage-stabiliser tube DW1 voltage stabilizing value to can determine that trigger pulse T width.
The electricity-saving appliance of this motor is applied to below 1KW single-phase motor, and its power savings is up to 20%.Use in addition
Electronic component it is less, reduce fault rate.
The wiring board of the electricity-saving appliance of this motor is arranged in a housing, and the structure of housing includes upper casing 1, the top of upper casing
Pillar 2 is extended downwardly out, wiring board 3 is arranged on pillar, and the radiating to bidirectional triode thyristor radiating is provided with below wiring board
Plate 6, is provided with the insulation sleeve 5 of hard between heat sink and wiring board, tapping screw 10 passes through insulation sleeve by heat sink and wiring board
It is fixed on pillar, the contact J1 on current transformer LH is drawn by lead 7 from the side wall of upper casing, and bidirectional triode thyristor connects
Point J2 is drawn by lead 8 from the side wall of upper casing, and button QA is arranged on the top of upper casing, and bottom plate 3 is connected with upper casing edge.
The electricity-saving appliance of this motor only has two with outside lead, facilitates use.
Lead 7 connects the live wire of power supply during use, and lead 8 connects one end of motor, another termination zero-power line of motor,
Click on button QA motor runnings.
Claims (2)
1. a kind of electricity-saving appliance of motor, its controllable silicon SCR for including being serially connected in single-phase motor MD current supply circuits, triggering can
Control silicon conducting triggers circuit, it is characterized in that, described triggers circuit include current transformer LH, triode T1, optocoupler GE1,
Optocoupler GE2, current transformer LH primary coil are serially connected in the current supply circuit of motor, current transformer LH secondary coil
It is connected with the input of a bridge rectifier QL1, the negative pole ground connection of bridge rectifier QL1 output end, bridge rectifier QL1's
The positive pole of output end connects triode T1 base stage by resistance R1, and triode T1 base stage is connect by optocoupler GE2 photo resistance
Ground, the emitter stage of triode meet the output end VDD of working power by resistance R5, and the emitter stage of triode connects voltage-stabiliser tube DW1's
Negative electrode, voltage-stabiliser tube DW1 plus earth, the colelctor electrode of triode connect the anode of optocoupler GE1 light emitting diode by resistance R2,
The minus earth of optocoupler GE1 light emitting diode, one end of optocoupler GE1 optoelectronic controlled silicon connect controllable silicon SCR by resistance R4
Anode, the control pole of another termination controllable silicon SCR of optoelectronic controlled silicon, the anode of optocoupler GE2 photodiode passes through electricity
Resistance R3 connects the output end VDD of working power, the negative pole ground connection of optocoupler GE2 photodiode；Diode D1 anode with it is complete
The positive pole connection of ripple rectifier QL1 output ends, diode D1 negative electrode are grounded by electric capacity C1, diode D1 negative electrode and electric capacity
Tie point between C1 is the output end VDD of working power, and button QA is connected between the both ends of optoelectronic controlled silicon.
2. a kind of electricity-saving appliance of motor according to claim 1, it is characterized in that, the wiring board peace of the electricity-saving appliance of motor
In a housing, the structure of housing includes upper casing（1）, the top down of upper casing extends pillar（2）, wiring board（4）Installation
Heat sink to bidirectional triode thyristor radiating is installed on pillar, below wiring board（6）, it is provided between heat sink and wiring board
The insulation sleeve of hard（5）, tapping screw（10）Heat sink and wiring board are fixed on pillar through insulation sleeve, current transformer
Contact J1 on LH passes through lead（7）Drawn from the side wall of upper casing, the contact J2 of bidirectional triode thyristor passes through lead（8）From upper casing
Side wall in draw, button QA be arranged on upper casing top, bottom plate（3）It is connected with upper casing edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711036108.6A CN107579694A (en) | 2017-10-28 | 2017-10-28 | A kind of electricity-saving appliance of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711036108.6A CN107579694A (en) | 2017-10-28 | 2017-10-28 | A kind of electricity-saving appliance of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107579694A true CN107579694A (en) | 2018-01-12 |
Family
ID=61041209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711036108.6A Pending CN107579694A (en) | 2017-10-28 | 2017-10-28 | A kind of electricity-saving appliance of motor |
Country Status (1)
| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3573581A (en) * | 1969-06-24 | 1971-04-06 | Singer Co | System for controlling needle positioning drive and thread trimming functions of an industrial sewing machine driven by a continuously coupled dc motor |
| US4084406A (en) * | 1976-01-22 | 1978-04-18 | Fedders Corporation | Chiller controls |
| CN101648666A (en) * | 2009-09-18 | 2010-02-17 | 沈阳博林特电梯有限公司 | Shielded laminated variable frequency controller of lift door |
| CN106843353A (en) * | 2017-03-31 | 2017-06-13 | 北京东方计量测试研究所 | High-voltage dc stabilization pressuring power |
| CN107302331A (en) * | 2017-08-14 | 2017-10-27 | 高玉琴 | Current trigger formula electric motor electricity saver |
| CN207573268U (en) * | 2017-10-28 | 2018-07-03 | 泰州市姜堰德力电机有限公司 | A kind of electricity-saving appliance of motor |
-
2017
- 2017-10-28 CN CN201711036108.6A patent/CN107579694A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3573581A (en) * | 1969-06-24 | 1971-04-06 | Singer Co | System for controlling needle positioning drive and thread trimming functions of an industrial sewing machine driven by a continuously coupled dc motor |
| US4084406A (en) * | 1976-01-22 | 1978-04-18 | Fedders Corporation | Chiller controls |
| CN101648666A (en) * | 2009-09-18 | 2010-02-17 | 沈阳博林特电梯有限公司 | Shielded laminated variable frequency controller of lift door |
| CN106843353A (en) * | 2017-03-31 | 2017-06-13 | 北京东方计量测试研究所 | High-voltage dc stabilization pressuring power |
| CN107302331A (en) * | 2017-08-14 | 2017-10-27 | 高玉琴 | Current trigger formula electric motor electricity saver |
| CN207573268U (en) * | 2017-10-28 | 2018-07-03 | 泰州市姜堰德力电机有限公司 | A kind of electricity-saving appliance of motor |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180112 |
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| WD01 | Invention patent application deemed withdrawn after publication |