CN2924924Y - Single-phase AC motor electronic start circuit - Google Patents
Single-phase AC motor electronic start circuit Download PDFInfo
- Publication number
- CN2924924Y CN2924924Y CN 200620101425 CN200620101425U CN2924924Y CN 2924924 Y CN2924924 Y CN 2924924Y CN 200620101425 CN200620101425 CN 200620101425 CN 200620101425 U CN200620101425 U CN 200620101425U CN 2924924 Y CN2924924 Y CN 2924924Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- motor
- starting
- electric machine
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000002457 bidirectional effect Effects 0.000 claims description 16
- 239000007858 starting material Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 22
- 239000003990 capacitor Substances 0.000 description 11
- 230000006698 induction Effects 0.000 description 7
- 230000004907 flux Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 101150037009 pin1 gene Proteins 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 101100520142 Caenorhabditis elegans pin-2 gene Proteins 0.000 description 1
- 101100244014 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) ppi-5 gene Proteins 0.000 description 1
- 101150023294 PIN4 gene Proteins 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Control Of Ac Motors In General (AREA)
- Motor And Converter Starters (AREA)
Abstract
The utility model discloses an electron starting circuit of single-phase AC electric motor, which comprises a depressurizing rectified module, a delayed circuit, a master circuit, a contactless switch and a starting circuit of the electric motor, wherein, the depressurizing rectified module conducts the depressurizing rectification to the AC signal that is inputted, then outputs the low pressure direct signal to the delayed circuit and master circuit. After receiving the starting signal of the DC circuit, the master circuit outputs the starting signal to the contactless switch, and the contactless switch outputs the starting signal to the electric machine starting circuit, then the electric machine starting circuit begins to work. The utility model replaces traditional mechanical contact centrifugal switch by the electric machine and electron, has the advantages of on-off non voltaic arc sparkle, safety and reliability, longevity, simple installation and connection. The utility model can be arranged on the external surface of the electric machine, which simplifies the overall design and assembly, makes the maintenance of the electric machine convenient, greatly shortens the volume of the electric machine, saves the raw materials, and applies for all the electric machines with single phase AC which need centrifugal switch.
Description
[technical field]
The utility model relates to motor, relates in particular to load motor.
[background technology]
We are using numerous electrical equipment and equipment that have single phase induction motor every day.Because the rotating speed controlled function of single phase induction motor not only can change rotating speed, also capable of reducing energy consumption and irritating noise, thereby are desirable selections for most of Electric Machine Control application.Because the standard single phase alternating current power supply work that single phase induction motor can use commercial power socket to provide, its range of application is very extensive.In domestic electric appliance, all often is furnished with small-sized single phase alternating current (A.C.) induction motor.General three-phase alternating-current induction motor is behind the connection three-phase alternating current, and motor stator winding is passed through to produce rotating magnetic field and inductiopn rotor behind the alternating current, thereby makes rotor produce electromotive force, and interacts and the formation torque, makes rotor rotation.But the single phase alternating current (A.C.) induction motor can only polarization and the magnetic field of intensity alternate, can not produce rotating magnetic field, so single-phase AC motor must design in addition and make its produce rotating magnetic field, and rotor could rotate.They all can not self-starting.General by the actuating mechanism that uses, can be divided into types such as split-phase type, capacitor start formula and shaded-pole.
The split-phase type motor is widely used in the household electrical appliance such as refrigerator, washing machine, air-conditioning.This motor has a cage rotor and major and minor two stator winding.Two windings differ a very big phase angle, make electric current and magnetic flux in the auxiliary winding reach peaked time ratio main winding earlier, thereby can produce a magnetic flux around the stator rotation.Conductor on this rotating magnetic flux cutting rotor makes bigger electric current of rotor conductor induction, and magnetic flux that electric current produced and stator magnetic flux interact, and rotor just produces detent torque.When motor startup in a single day, when rotating speed rose to rated speed 70% left and right sides, centrifugal switch was thrown off auxiliary winding and is promptly cut off the power supply, and motor can run well.
Capacitor start formula motor can be divided into electric capacity phase-splitting starting motor and permanent split-phase capacitor motor.This electric machine structure is simple, starts fast, and stabilization of speed is widely used in the household electrical appliance such as electric fan, ventilating fan, smoke exhaust ventilator.Capacitor split-phase motor is provided with main winding and auxiliary winding (startup winding) on stator winding, and the big capacity of series connection starts capacitor in starting winding, make the electrical phase angle of energising back main winding and auxiliary winding become 90 °, thereby can produce bigger detent torque, make the rotor startup running.For permanent split-phase capacitor motor, all be connected in series with the startup winding.Because the torque of permanent its startup of split-phase motor is less, therefore is suitable for very much exhaust blower, air exhauster etc. and requires to use in the low electric equipment of staring torque.Capacitor-start motor is because its operation winding divides positive and negative phase coiling setting, so as long as switchover operation winding and the serial connection direction that starts winding can be realized conveniently that motor is contrary, turn round along direction.
The shaded-pole single-phase AC motor, it simple in structure, its electric property slightly is worse than other monophase machines, but because cost of manufacture is low, running noises is less, and is little to the electric equipment interference, so be widely used in the small household appliances such as electric fan, hair dryer, dust catcher.Shadedpole motor has only main winding, does not have pair around level (startup winding), and it respectively is provided with a secondary short-circuited conducting sleeve at the place, the two poles of the earth of motor stator, is also referred to as the electrode hood polar circle.After the motor energising, the pulsating field that the magnetic field of main pole part produces is responded to short circuit and is produced secondary current, thereby makes the magnetic field of quilt cover part on the magnetic pole, lags behind than the magnetic field that does not cover part, thereby magnetic pole formation rotating magnetic field, motor rotor just rotates startup work.The shaded-pole single-phase motor also has characteristics, promptly can convert two utmost points or four utmost point rotating speeds easily to, uses to adapt to the different rotating speeds electrical matching.
Centrifugal switch is the starting component of single-phase motor, and it is connected on the starting winding of motor, during electric motor starting, when rotating speed reach synchronous speed 70～85% the time, centrifugal switch relies on centrifugal force to open, and cuts off starting circuit and enters operation.Present load motor all adopts mechanical type that the contact centrifugal switch is arranged.This centrifugal switch break-make have arc spark, useful life short, mounting structure is complicated, the cost of raw material that must be installed in the overall construction design of the inside of motor, inconvenient motor and make the volume of motor integral body big, increased motor.
[summary of the invention]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of load motor electronic starting circuit, starts no arc spark, safe and reliable, saving raw material.
For achieving the above object, the utility model proposes a kind of load motor electronic starting circuit, comprise step-down rectifier module, delay circuit, governor circuit, noncontacting switch and electric motor starting circuit, described step-down rectifier module is carried out step-down rectifier to the AC signal of input, and the low-voltage dc signal behind the step-down rectifier exported to delay circuit and governor circuit, the output enabling signal was given noncontacting switch after governor circuit was received the enabling signal of delay circuit, noncontacting switch is exported to the electric motor starting circuit with enabling signal, starter motor work.
As preferably, described governor circuit adopts the TC4011BP chip.
As preferably, described noncontacting switch adopts bidirectional thyristor to realize switching function.
As preferably, described bidirectional thyristor adopts MAC 97A6 and BTA16/600.
The beneficial effects of the utility model: the utility model adopts electronic circuit to substitute traditional mechanical type the contact centrifugal switch, have break-make do not have arc spark, safe and reliable, long-lived, advantages such as wiring is simple are installed, can be directly installed on the outer surface of motor, simplify the master-plan and the assembling of motor, made things convenient for the maintenance of motor, and dwindled the volume of motor greatly, saved raw material, be applicable to the load motor that all need centrifugal switch.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the electrical block diagram of a kind of load motor electronic starting circuit of the utility model;
Fig. 2 is the circuit diagram of a kind of load motor electronic starting circuit of the utility model.
[embodiment]
Be illustrated in figure 1 as the electrical block diagram of a kind of load motor electronic starting circuit of the utility model.Comprise step-down rectifier module 1, delay circuit 2, governor circuit 3, noncontacting switch 4 and electric motor starting circuit 5, the AC signal of 1 pair of input of described step-down rectifier module is carried out step-down rectifier, and the low-voltage dc signal behind the step-down rectifier exported to delay circuit 2 and governor circuit 3, the output enabling signal was given noncontacting switch 4 after governor circuit 3 was received the enabling signal of delay circuit 2, noncontacting switch 4 is exported to electric motor starting circuit 5 with enabling signal, starter motor work.
Be illustrated in figure 2 as the circuit diagram of a kind of load motor electronic starting circuit of the utility model.The alternating voltage of 220V is exported low-voltage dc voltage and is given delay circuit 2 and governor circuit 3 after first capacitor C 1, the first diode D1, the second diode D2, second capacitor C, 2 step-down rectifiers and filtering.Governor circuit 3 adopts the TC4011BP of Toshiba chip, and this chip internal is 4 logical AND not gates.The pin14 of TC4011BP chip connects power supply, pin13 is connected the back and connects power supply by first resistance R 1 with pin12, pin9 is connected the back and connects power supply by second resistance R 2 with pin11, pin1, pin2, pin5, pin6 links to each other with pin10, the 4th capacitor C 4 one ends link to each other with pin4, the other end links to each other with the end anodal and the 9th resistance R 9 of the 3rd diode D3, the negative pole of the 3rd diode D3 is connected to pin1 after connecting the 7th resistance R 7, the other end of the 9th resistance R 9 also is connected to pin1, be in series with the tenth resistance R 10 between the positive pole of the 3rd diode D3 and the pin8, pin3 links to each other with the base stage of the 3rd triode Q3, the collector electrode of the 3rd triode Q3 connects power supply, emitter connects the 5th resistance R 5, the control utmost point of another termination second bidirectional thyristor Q2 of the 5th resistance R 5, the 6th resistance R 6 in parallel between the control utmost point of the second bidirectional thyristor Q2 and the second plate, the first anode of the second bidirectional thyristor Q2 is connected to the control utmost point of the first bidirectional thyristor Q1 by the 4th resistance R 4, the first anode of the first bidirectional thyristor Q1 with control the utmost point between the 3rd resistance R 3 in parallel, the first anode of the first bidirectional thyristor Q1 is connected to the startup winding by the 5th capacitor C 5, and the 5th capacitor C 5 is for starting electric capacity.When the pin3 of TC401iBP chip output high level to the three triode Q3, the 3rd triode Q3 is with regard to conducting, voltage signal is outputed to the control utmost point of the second bidirectional thyristor Q2, make the second bidirectional thyristor Q2 conducting, again triggering signal is outputed to the control utmost point of the first bidirectional thyristor Q1, make the first bidirectional thyristor Q1 conducting, thereby the alternating voltage of 220V is added on startup winding and the startup electric capacity, realize the startup of motor, when rotating speed reach synchronous speed 70～85% the time, control first bidirectional thyristor Q1 shutoff in the noncontacting switch 4 by governor circuit 3 equally, directly power, make motor enter normal operation to motor by the alternating voltage of 220V.The utility model adopts bidirectional thyristor to realize motor from starting to the switching of operation, and the control reaction is fast, realizes conducting and shutoff in the microsecond level, contactless operation, and no-spark, noiselessness, the efficient height, cost is low.
Above-mentioned execution mode is to further specify of the present utility model; not to concrete qualification of the present utility model; any simple deformation and replacement on the utility model basis all belongs to protection range of the present utility model, and the utility model is applicable to the load motor that all need centrifugal switch.
Claims (4)
1. load motor electronic starting circuit, it is characterized in that: comprise step-down rectifier module (1), delay circuit (2), governor circuit (3), noncontacting switch (4) and electric motor starting circuit (5), described step-down rectifier module (1) is carried out step-down rectifier to the AC signal of input, and the low-voltage dc signal behind the step-down rectifier exported to delay circuit (2) and governor circuit (3), the output enabling signal was given noncontacting switch (4) after governor circuit (3) was received the enabling signal of delay circuit (2), noncontacting switch (4) is exported to electric motor starting circuit (5), starter motor work with enabling signal.
2. a kind of load motor electronic starting circuit as claimed in claim 1 is characterized in that: described governor circuit (3) adopts the TC4011BP chip.
3. a kind of load motor electronic starting circuit as claimed in claim 2 is characterized in that: described noncontacting switch (4) adopts bidirectional thyristor to realize switching function.
4. a kind of load motor electronic starting circuit as claimed in claim 3 is characterized in that: described bidirectional thyristor adopts MAC97A6 and BTA16/600.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101425 CN2924924Y (en) | 2006-03-06 | 2006-03-06 | Single-phase AC motor electronic start circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101425 CN2924924Y (en) | 2006-03-06 | 2006-03-06 | Single-phase AC motor electronic start circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924924Y true CN2924924Y (en) | 2007-07-18 |
Family
ID=38261351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620101425 Expired - Fee Related CN2924924Y (en) | 2006-03-06 | 2006-03-06 | Single-phase AC motor electronic start circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924924Y (en) |
-
2006
- 2006-03-06 CN CN 200620101425 patent/CN2924924Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201656883U (en) | Brushless direct-current motor controller for dust collector | |
| CN202121398U (en) | Series excitation motor with shunt windings | |
| CN204886620U (en) | Double-excitation winding energy-saving direct current motor | |
| CN201138790Y (en) | Electronic starting circuit of single-phase alternating current motor | |
| CN101769253A (en) | Integrated switched reluctance electric scroll compressor assembly for vehicle air conditioning | |
| CN215120636U (en) | SPIM motor drive circuit | |
| CN208337370U (en) | A kind of switched reluctance machines structure | |
| CN113315445B (en) | SPIM motor driving circuit and method | |
| CN215120635U (en) | SPIM motor drive circuit | |
| CN215120634U (en) | SPIM motor drive circuit | |
| CN2924924Y (en) | Single-phase AC motor electronic start circuit | |
| US10059166B2 (en) | Assembly comprising a generator and electric motors, for a vehicle cooling or air-conditioning system | |
| CN1835377A (en) | Electronic starting circuit of single-phase a.c. dynamo | |
| CN104682654A (en) | Control device and method for electromagnetic type reluctance motor | |
| CN201332325Y (en) | Energy-saving negative pressure generating device | |
| CN206903797U (en) | A kind of put-put electrically activates and TRT | |
| CN202048724U (en) | Hybrid frequency conversion air-conditioner system with two working modes | |
| CN110176896A (en) | A kind of machine motor positive and negative rotation directly switches starting control system | |
| CN215268114U (en) | SPIM motor drive circuit | |
| CN201140389Y (en) | Frequency conversion electric tool | |
| CN205304356U (en) | Washing machine power generation system | |
| CN102062110A (en) | Alternating-current brushless ceiling fan | |
| CN201650791U (en) | AC brushless ceiling fan | |
| CN215871239U (en) | Double-motor control circuit for bathroom heater and integrated motor with built-in circuit | |
| CN201674446U (en) | Single-phase electric battering ram and start control circuit thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070718 Termination date: 20100306 |