CN203434896U - Motor positive and negative rotation constant power and constant speed control system - Google Patents
Motor positive and negative rotation constant power and constant speed control system Download PDFInfo
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- CN203434896U CN203434896U CN201320379009.9U CN201320379009U CN203434896U CN 203434896 U CN203434896 U CN 203434896U CN 201320379009 U CN201320379009 U CN 201320379009U CN 203434896 U CN203434896 U CN 203434896U
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- motor
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- speed control
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Abstract
The utility model discloses a motor positive and negative rotation constant power and constant speed control system in the field of a motor control system. The control system comprises a positive and negative rotation switch, a motor control switch and a motor speed control module, wherein the positive and negative rotation switch, the motor control switch and the motor speed control module are connected with the control system. The signal output end of the positive and negative rotation switch is connected with the signal input end of the motor control switch. The signal output end of the motor control switch is connected with the motor speed control module. The motor speed control module controls the work of a motor. According to the utility model, large current generated by instant motor positive and negative rotation change is prevented; the motor and the power supply circuit are prevented from the damage of high voltage; the normal operation of the motor is ensured; the service life of the motor is prolonged; and the control system provided by the utility model has the advantages of simple structure and convenient manufacture, and can be used for motor control.
Description
Technical field
The utility model relates to a kind of electric machine control system, particularly a kind of motor positive and inverse control system.
Background technology
Motor is one of equipment being most widely used in electromechanical industries, is the power producer of other electromechanical equipment.Motor normally outputting power is the prerequisite of its driving arrangement normal operation.So be of great significance with economic worth for the control tool of motor.Electric motor protecting control device has been widely used in the every field such as power supply, generating, motor vehicle and using electricity system, becomes the important part in one, these fields.
It is directly actuated by bidirectional switch that traditional motor positive and inverse is controlled, and this mode exists very large drawback.When motor moves, stir forward-reverse switch, motor can produce large shoving by just changing reversion into moment, for motor and circuit, easily causes and large damage, or burn-down of electric motor.
Utility model content
The purpose of this utility model is to provide the permanent merit constant speed control system of a kind of motor positive and inverse, more safe and reliable while making motor do in the course of the work rotating to switch, and guarantees that motor normally moves, and extends motor useful life.
The purpose of this utility model is achieved in that the permanent merit constant speed control system of a kind of motor positive and inverse, comprise the forward-reverse switch, motor control switch and the motor speed control module that are connected in control system, the signal output part of described forward-reverse switch is connected with the signal input part of motor control switch, the signal output part of described motor control switch is connected with motor speed control module, and described motor speed control module is controlled machine operation.
In the utility model work, if motor during to forward or reverse state, only need be opened motor power by stopped status, rotating is gone to relevant position, opening motor control switch, control system is sent and is driven instruction to motor speed control module, thus drive motors action; When if motor is done rotating switching when operation, as motor is in forward state, when forward-reverse switch switches to moment of reversion, electric machine control system can send shutdown signal to motor control switch, send out code disable motor simultaneously, after motor stalling, by again pressing motor control switch, send working signal, motor reversal now, thus complete the switching of motor positive and inverse.Compared with prior art, the beneficial effects of the utility model are, the utility model has been avoided becoming moment at motor positive and inverse and has been produced large electric current, avoid high voltage to cause damage to motor and power circuit thereof simultaneously, ensured the normal operation of motor, extended the useful life of motor, and the utility model is simple in structure, easily manufactured.The utility model can be used in Electric Machine Control.
As improvement of the present utility model, in described control system, be provided with motor soft-start module, motor speed setting module, electric current and voltage detecting module and motor speed detecting module.By motor soft-start module, control motor action, at powered on moment, from low to high, motor speed from slow to fast for electric moter voltage.Can effectivelyly avoid the excessive phenomenon of electric motor starting immediate current like this; By being set, motor speed setting module make the rotating speed of motor controlled; By motor speed detecting module Real-Time Monitoring motor operating state, thereby can ensure motor constant-speed operation, and if while finding that motor overload or motor gambling turn, disable motor immediately, thus motor safety operation ensured.
Anyway sensitiveer for rotating is switched, reliability is higher, and described forward-reverse switch is bidirectional relay, and described forward-reverse switch is bidirectional relay.
As further improvement of the utility model, described motor control switch is electro-magnet switch.
Accompanying drawing explanation
Fig. 1 is the utility model control principle block diagram.
Embodiment
The permanent merit constant speed control system of a kind of motor positive and inverse as shown in Figure 1, comprise the forward-reverse switch being connected in control system, motor control switch and motor speed control module, the signal output part of forward-reverse switch is connected with the signal input part of motor control switch, the signal output part of motor control switch is connected with motor speed control module, motor speed control module is controlled machine operation, in control system, be provided with motor soft-start module, motor speed setting module, electric current and voltage detecting module and motor speed detecting module, forward-reverse switch is bidirectional relay.
In the utility model work, if motor is by stopped status during to forward or reverse state, only need open motor power, rotating is gone to relevant position, opening motor control switch, control system is sent and is driven instruction to motor speed control module by motor soft-start module, thus drive motors action; When if motor is done rotating switching when operation, as motor is in forward state, when forward-reverse switch switches to moment of reversion, electric machine control system can send shutdown signal to motor control switch, send out code disable motor simultaneously, after motor stalling, by reopening lower motor control switch, send working signal, after motor control switch is opened, motor enters soft start state, the input voltage of motor can be from low to high toward rising, when motor speed reaches command speed, motor input voltage stops rising; In machine operation process, if when motor speed changes, after motor speed detecting module senses that motor speed changes, control system is sent speed-regulating instruction and is regulated motor speed; When occurring that motor overload or motor gambling turn, control system can detect the excessive and disable motor of motor input current, thereby motor can stop operating, again motor control switch need be reopened to motor during starter motor can move, and has avoided electric current excessive and cause motor and circuit burnout.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection range of the present utility model.
Claims (4)
1. the permanent merit constant speed control system of a motor positive and inverse, it is characterized in that, comprise the forward-reverse switch, motor control switch and the motor speed control module that are connected in control system, the signal output part of described forward-reverse switch is connected with the signal input part of motor control switch, the signal output part of described motor control switch is connected with motor speed control module, and described motor speed control module is controlled machine operation.
2. a kind of motor positive and inverse according to claim 1, permanent merit constant speed control system, is characterized in that, is provided with motor soft-start module, motor speed setting module, electric current and voltage detecting module and motor speed detecting module in described control system.
3. the permanent merit constant speed control system of a kind of motor positive and inverse according to claim 1 and 2, is characterized in that, described forward-reverse switch is bidirectional relay.
4. the permanent merit constant speed control system of a kind of motor positive and inverse according to claim 1 and 2, is characterized in that, described motor control switch is electro-magnet switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320379009.9U CN203434896U (en) | 2013-06-28 | 2013-06-28 | Motor positive and negative rotation constant power and constant speed control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320379009.9U CN203434896U (en) | 2013-06-28 | 2013-06-28 | Motor positive and negative rotation constant power and constant speed control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434896U true CN203434896U (en) | 2014-02-12 |
Family
ID=50063910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320379009.9U Expired - Lifetime CN203434896U (en) | 2013-06-28 | 2013-06-28 | Motor positive and negative rotation constant power and constant speed control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390072A (en) * | 2015-12-17 | 2016-03-09 | 大贺传媒股份有限公司 | Advertisement screen on taxi roof |
-
2013
- 2013-06-28 CN CN201320379009.9U patent/CN203434896U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390072A (en) * | 2015-12-17 | 2016-03-09 | 大贺传媒股份有限公司 | Advertisement screen on taxi roof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |