CN206712685U - A kind of electric machine control system of mixer - Google Patents
A kind of electric machine control system of mixer Download PDFInfo
- Publication number
- CN206712685U CN206712685U CN201720538075.4U CN201720538075U CN206712685U CN 206712685 U CN206712685 U CN 206712685U CN 201720538075 U CN201720538075 U CN 201720538075U CN 206712685 U CN206712685 U CN 206712685U
- Authority
- CN
- China
- Prior art keywords
- motor
- control system
- machine control
- current
- electric machine
- 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
Abstract
A kind of electric machine control system of mixer; branch road and motor reversal branch road are rotated forward including motor; the motor rotates forward branch road one soft start controller of series connection and the current detection module being arranged in series with the soft start controller; when current detecting, which detects electric circuit inspection, is more than preset value to the electric current of motor rotating forward branch road; the current detection module controlled motor power-off, has the characteristics of service life of protection motor.
Description
Technical field
The circuit for controlling motor of mixer is the utility model is related to, more particularly to a kind of electric machine control system of mixer.
Background technology
The electric motor starting of prior art Central Plains mixer is mostly started using star angle, and star angle starts, in the process of startup
In following drawback be present：
Starting current can not limit, and dash current is larger
（1）Mixer original variable star angle moment removes motor from power supply, and again corner connection when, turn in power supply and motor
Very big phase difference can be produced between sub- magnetic flux, so as to cause very big dash current；
The rated power of general mixer be 55KW, and rated current is 100A or so, and during mixer No Load Start, motor rushes
300-500A can be also up to by hitting electric current；
（2）The infringement of inrush current
1. too high starting current impacts to net capacity；
2. too high starting current can cause excessive torque shock ends, damage is impacted to the machinery and drive device of motor
Evil.Excessive starting current also easily causes that the motor feels hot, and when especially produced on-site task is intensive, motor has frequent starting
Situation, motor can be burnt when serious；
3. easily make kilowatt-hour meter overdose, increase line loss；
4. dash current produces interference to surrounding devices：
Electric motor starting dash current, the pressure of power supply grid can be increased, while surrounding devices are had an impact, such as scene
Illuminator, motor can be unobvious dimmed in moment.
Utility model content
The purpose of this utility model is to provide a kind of electric machine control system of mixer have the effect for playing protection motor
Fruit.
Above-mentioned purpose of the present utility model technical scheme is that：
A kind of electric machine control system of mixer, including motor rotate forward branch road and motor reversal branch road, and the motor rotates forward
Branch road one soft start controller of series connection and the current detection module being arranged in series with the soft start controller, when current detecting is examined
When slowdown monitoring circuit detects that the electric current of motor rotating forward branch road is more than preset value, the current detection module controlled motor power-off.
By using above-mentioned technical proposal, voltage is slowly lifted to rated voltage by zero using soft start controller, made
Impact torque is not present in all smooth startup optimization of the overall process of startup in motor, but the soft start is applied into mixer
When upper, will may exist due to smaller when the torque of motor starts, and the material of mixer is different due to outdoor temperature（Winter
Outdoor temperature is extremely low）Dispensing is larger to the load shock of motor when causing blanking, and stirring label is different（The less feelings of moisture
Under condition）Cause motor load excessive, and electric motor starting causes torque urine easily mixer stall is occurred due to soft start
Situation occurs, and when stall, current of electric can rapidly rise, considerably beyond its load current value, now current detection module inspection
When survey electric current is excessive, motor is powered off, avoids the infringement to motor to greatest extent.
As improvement of the present utility model, the soft start controller is XFE controllers.
By using above-mentioned technical proposal, because XFE controllers have the characteristics of economize on electricity, as preferred.
As improvement of the present utility model, the current detection module includes,
Current transformer circuit, it is coupled to motor and rotates forward branch road, the current flow of branch road and defeated is rotated forward for detecting motor
Go out detection signal；
Reference cell, for providing reference signal；
Comparing unit, current transformer and reference cell are coupled to, when detection signal is more than reference signal, the comparison
Circuit output performs signal；
Execution unit, comparison circuit is coupled to, when receiving the execution signal, cuts off the connection of motor and power supply.
By using above-mentioned technical proposal, using current transformer to current detecting, and circuit signal is converted into inspection
Survey signal to be used for judging, reference cell is used to provide the reference signal corresponding to preset value, and comparing unit receives reference signal
And detection signal, and compare detection signal and reference signal, when detection signal is more than reference signal, comparing unit output is high
Level signal, now execution unit controlled motor and power supply disconnect.
As improvement of the present utility model, the reference cell includes the first resistor and second resistance being arranged in series, institute
State the node output reference signal of first resistor and second resistance coupling.
By using above-mentioned technical proposal, using electric resistance partial pressure principle in the node position that first resistor and second resistance couple
Output reference signal is put, there is the characteristics of stability is high, voltage value stabilization.
As improvement of the present utility model, the execution unit includes relay, and the relay includes coil and normally closed
Contact, the coil is coupled to comparing unit, between the normally-closed contact coupling motor positive branch and power supply.
By using above-mentioned technical proposal, make control accuracy higher using relay.
As improvement of the present utility model, the fly-wheel diode of the reversal connection of coils from parallel connection of coils one.
By using above-mentioned technical proposal, coil can remain a part of voltage in the moment of power-off, store this for a long time
During a little voltages the service life of coil can be caused to weaken, therefore the setting of fly-wheel diode, when coil is in the wink of power-off
Between residual voltage can be discharged, so as to extension coil service life effect.
As improvement of the present utility model, the coil has also been arranged in parallel light emitting diode.
By using above-mentioned technical proposal, the current effect for whether being in state of giving out light of setting prompting of light emitting diode.
As improvement of the present utility model, one protective resistance of the light emitting diode series connection.
By using above-mentioned technical proposal, because the operating voltage of coil typically can be bigger than the operating voltage of electric current, it is
Prevent light emitting diode from being burnt by higher voltage, so one protective resistance of concatenation is used for partial pressure.
In summary, the utility model has the advantages that：Voltage is slowly carried by zero using soft start controller
Rated voltage is raised to, makes motor that impact torque be not present in all smooth startup optimization of the overall process of startup, but this is soft
Startup will may be present due to smaller when the torque of motor starts when being applied on mixer, and the material of mixer due to
Outdoor temperature is different（Winter outdoor temperature is extremely low）Dispensing is larger to the load shock of motor when causing blanking, and stirring label
It is different（In the case of moisture is less）Cause motor load excessive, and electric motor starting causes torque urine easily to make due to soft start
The situation that stall occurs in mixer occurs, and when stall, current of electric can rapidly rise, considerably beyond its load current value, this
When current detection module detection electric current it is excessive when, power off motor, avoid the infringement to motor to greatest extent.
Brief description of the drawings
Fig. 1 is electric machine control system schematic diagram；
Fig. 2 is current detecting detection circuit.
In figure, 1, motor rotate forward branch road；2nd, circuit reversion branch road；3rd, current detection module；31st, current transformer circuit；
311st, current transformer；32nd, reference cell；33rd, comparing unit；34th, coil.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in reference picture 1, a kind of electric machine control system of mixer, including motor, controlled motor rotate forward（Start）Electricity
Machine rotates forward branch road 1, the motor reversal branch road of controlled motor reversion, and the motor is used to control the agitating device in mixer to rotate,
Agitating device is that the prior art that mixer must have will not be described here.The motor, which rotates forward, concatenates soft start control on branch road 1
Device, soft start controller are a kind of novelty electricity for integrating soft starter for motor, soft stop, light-load energy saving and multi-protective function
Machine control device, foreign countries are referred to as Soft Starter.Its main composition is the three-phase being serially connected between power supply and controlled motor
Inverse parallel brake tube and its electronic control circuit.With different methods, the angle of flow of three-phase inverse parallel brake tube is controlled, makes controlled electricity
The input voltage of machine is changed by different requirements, so that it may realizes different functions.Soft initiator and frequency converter are two kinds complete
The product of different purposes.Frequency converter is the place for needing speed governing, and it exports not only change voltage but also changes frequency simultaneously；
Soft initiator is actually pressure regulator, and during for electric motor starting, output only changes voltage and do not change frequency.Frequency conversion utensil
Standby all soft initiator functions, but its price is more more expensive than soft initiator, and structure is also much more complex.Electric Motor Soft-starter is
With the soft initiator being serially connected between power supply and controlled motor, the angle of flow of its internal IGCT is controlled, makes motor input electricity
Pressure is gradually increasing from zero with preset function relation, is terminated until starting, and motor full voltage, as soft start is assigned, in soft start
During, electric motor starting torque gradually increases, and rotating speed also gradually increases.When the soft start controller is arranged on mixer,
Because motor can drive agitating device to act, and during stirring, will may exist due to when the torque of motor starts
It is smaller, and the material of mixer is different due to outdoor temperature（Winter outdoor temperature is extremely low）Dispensing during blanking is caused to bear motor
It is larger to carry impact, and stirring label is different（In the case of moisture is less）Cause motor load excessive, and electric motor starting due to
Soft start causes the situation generation that torque urine easily makes mixer stall occur, and when stall, current of electric can rapidly rise,
Considerably beyond its load current value, when the now detection of current detection module 3 electric current is excessive, motor is powered off, is kept away to greatest extent
Exempt from the infringement to motor, soft start controller uses model XFE controllers, because XFE controllers have the characteristics of economize on electricity.
Shown in reference picture 2, the current detection module 3 includes current transformer circuit 31, reference cell 32, comparing unit 33
And execution unit, current transformer circuit 31 include the current transformer 311 and resistance R3 being arranged in series, current transformer
311 are serially connected with motor prograde circuit, for gathering the electric current on motor prograde circuit, are converted to current signal by resistance R3
Detection signal is exported to comparator, and current transformer 311 and the protective resistance R4 of resistance R3 couplings, protective resistance R4 are used
In protection comparator, prevent voltage excessive to puncture comparator, because sample rate current passes through the sampling of current transformer 311, have
When can be unstable, so pressing unstable situation can also occur in sampling, the setting of electric capacity of voltage regulation solves voltage instability
Problem, reference cell 32 include the node output reference of the resistance R1 and resistance R2 being arranged in series, resistance R1 and resistance R2 coupling
Signal, its resistance are that resistance R1 is 100K ohms respectively, and resistance R2 is 100K ohms, and comparator unit includes comparator, compared
Device is coupled to reference voltage unit and sampling unit, output execution signal, execution unit when detection signal is higher than reference signal
Including the coil 34KM1 being arranged in parallel and light emitting diode, when receiving high level signal, coil 34KM1 obtains electric, and sends out
Optical diode is luminous to play warning function, and when coil 34KM1 obtains electric, shown in reference picture 1, normally-closed contact KM1 disconnects, now,
Motor power-off plays a protective role.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of electric machine control system of mixer, including motor rotate forward branch road (1) and motor reversal branch road, it is characterised in that：
The motor rotates forward branch road (1) one soft start controller of series connection and the current detecting mould being arranged in series with the soft start controller
Block (3), when current detecting, which detects electric circuit inspection, is more than preset value to the electric current of motor rotating forward branch road (1), the current detecting
Module (3) controlled motor powers off.
A kind of 2. electric machine control system of mixer according to claim 1, it is characterised in that：The soft start controller
For XFE controllers.
A kind of 3. electric machine control system of mixer according to claim 1, it is characterised in that：The current detection module
(3) include,
Current transformer (311) circuit (31), it is coupled to motor and rotates forward branch road (1), working as branch road (1) is rotated forward for detecting motor
Preceding electric current simultaneously exports detection signal；
Reference cell (32), for providing reference signal；
Comparing unit (33), current transformer (311) and reference cell (32) are coupled to, when detection signal is more than reference signal
When, the comparison circuit output performs signal；
Execution unit, comparison circuit is coupled to, when receiving the execution signal, cuts off the connection of motor and power supply.
A kind of 4. electric machine control system of mixer according to claim 3, it is characterised in that：The reference cell (32)
Including the first resistor and second resistance being arranged in series, the node output reference letter of first resistor and the second resistance coupling
Number.
A kind of 5. electric machine control system of mixer according to claim 3, it is characterised in that：The execution unit includes
Relay, the relay include coil (34) and normally-closed contact, and the coil (34) is coupled to comparing unit (33), described normal
Closed contact is coupled between motor positive branch and power supply.
A kind of 6. electric machine control system of mixer according to claim 5, it is characterised in that：The coil (34) is in parallel
The fly-wheel diode of one reversal connection.
A kind of 7. electric machine control system of mixer according to claim 5, it is characterised in that：The coil (34) is also simultaneously
Connection is provided with light emitting diode.
A kind of 8. electric machine control system of mixer according to claim 7, it is characterised in that：The light emitting diode string
Join a protective resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720538075.4U CN206712685U (en) | 2017-05-13 | 2017-05-13 | A kind of electric machine control system of mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720538075.4U CN206712685U (en) | 2017-05-13 | 2017-05-13 | A kind of electric machine control system of mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206712685U true CN206712685U (en) | 2017-12-05 |
Family
ID=60463405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720538075.4U Expired - Fee Related CN206712685U (en) | 2017-05-13 | 2017-05-13 | A kind of electric machine control system of mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206712685U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719056A (en) * | 2019-10-09 | 2020-01-21 | 杭州科丽迅机电有限公司 | Motor control circuit of garbage disposer |
| CN111355815A (en) * | 2020-04-22 | 2020-06-30 | 中山斯瑞德环保科技有限公司 | Crusher remote monitoring system and control method thereof |
| CN112624819A (en) * | 2019-10-08 | 2021-04-09 | 海南冠星电气有限公司 | Method for treating organic waste |
| CN114487827A (en) * | 2022-02-14 | 2022-05-13 | 爱科赛智能科技(浙江)有限公司 | Motor starting locked-rotor detection method based on current variance |
-
2017
- 2017-05-13 CN CN201720538075.4U patent/CN206712685U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624819A (en) * | 2019-10-08 | 2021-04-09 | 海南冠星电气有限公司 | Method for treating organic waste |
| CN110719056A (en) * | 2019-10-09 | 2020-01-21 | 杭州科丽迅机电有限公司 | Motor control circuit of garbage disposer |
| CN110719056B (en) * | 2019-10-09 | 2021-06-22 | 杭州科丽迅机电有限公司 | Motor control circuit of garbage disposer |
| CN111355815A (en) * | 2020-04-22 | 2020-06-30 | 中山斯瑞德环保科技有限公司 | Crusher remote monitoring system and control method thereof |
| CN114487827A (en) * | 2022-02-14 | 2022-05-13 | 爱科赛智能科技(浙江)有限公司 | Motor starting locked-rotor detection method based on current variance |
| CN114487827B (en) * | 2022-02-14 | 2022-11-25 | 爱科赛智能科技(浙江)有限公司 | Motor starting locked-rotor detection method based on current variance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206712685U (en) | A kind of electric machine control system of mixer | |
| CN102777319B (en) | Yaw control system for wind power generation and control method thereof | |
| CN204578416U (en) | A kind of closed-loop control system of vertical straight drive pumping unit position-sensor-free | |
| CN202995429U (en) | Frequency conversion air-cooling control device of transformer | |
| CN103051282A (en) | Variable-frequency and industrial frequency switching device and switching method of Variable-frequency and industrial frequency switching device | |
| CN101997459A (en) | DC oil pump motor soft start control device | |
| CN202042882U (en) | Circuit capable of realizing variable-frequency speed regulation and temperature protection circuit to fan | |
| CN204886560U (en) | A intelligent economize on electricity system for cold rolling main electric machine cooling fan | |
| CN107859645A (en) | Blower control method, system and air-conditioning | |
| CN202282754U (en) | High-voltage motor soft starting device implemented by finished low-voltage motor soft starter | |
| CN106762772A (en) | A kind of real-time measurement apparatus of blower fan torque | |
| CN109474040A (en) | Power-supply management system and method for managing power supply | |
| CN102570806B (en) | Power module and power supply system applicable to same | |
| JP2010007527A (en) | Generator of multistage connection type | |
| CN104810893B (en) | Electromagnetism balance-type battery protector | |
| CN204230918U (en) | Group wells dynamic compensation is soft opens Time-sharing control device | |
| CN202108661U (en) | Yaw control system used for wind power generation | |
| CN103281017B (en) | A kind of motor steering control appliance, method, system and engineering vehicle | |
| CN202326142U (en) | Secondary net water pump electronic-control device for intelligent heat exchange unit | |
| CN202713490U (en) | Short-circuit protective circuit at power supply end of liquid crystal display television control chip and liquid crystal display television | |
| CN101251117B (en) | Method for increasing blowing machine static pressure using circuit as well as implement circuit thereof | |
| CN204258671U (en) | The flexibility starting control circuit of motor | |
| CN104104302A (en) | Automatic control device capable of reducing speed, increasing torque and limiting current of electric motor | |
| CN219351568U (en) | Two switching system device is dragged to cascaded converter two | |
| CN202565415U (en) | Wireless digital television transmitter self-check system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |