CN209389960U - A kind of control panel - Google Patents
A kind of control panel Download PDFInfo
- Publication number
- CN209389960U CN209389960U CN201920285798.7U CN201920285798U CN209389960U CN 209389960 U CN209389960 U CN 209389960U CN 201920285798 U CN201920285798 U CN 201920285798U CN 209389960 U CN209389960 U CN 209389960U
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- circuit
- speed
- current
- control
- rotor resistance
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Abstract
The utility model discloses a kind of control panels, including start-up circuit, speed regulator circuit, current regulation circuit and rotor resistance switching circuit, the start-up circuit connection speed adjuster circuit, speed regulator circuit is also respectively connected with current regulation circuit and rotor resistance switching circuit, current regulation circuit is also connected with rotor resistance switching circuit, the beneficial effects of the utility model are: 1, according to release signal and speed preset signal detection failure, start motor operation and electromotor brake under non-failure conditions.2, is arranged to speed preset signal the oblique wave time, realizes stepless speed control.3, PID control is carried out to speed preset signal and feedback speed signal, realizes velocity close-loop control, output motor is to constant current.4, according to given value of current and current feedback, realize PI control, realize closed-loop current control, export SCR control signal to pulse-triggered plate 5, according to the size and Orientation switch motor rotor resistance of actual speed.
Description
Technical field
The utility model relates to a kind of master control borad, specifically a kind of control panel.
Background technique
Variable voltage control refers to that adjusting terminal voltage of motor makes motor realize stepless speed regulation in a certain range of speeds.Advantage
It is that motor operation is all steady in entire speed adjustable range.Speed adjustable range is also maximum, can be transferred to from the pickup voltage of motor specified
Voltage；PWM adjust the speed the advantages of be it is high-efficient, speed adjustable range can manage it, the disadvantage is that is pulsed when motor operation in minimum speed makes an uproar
The change of tune is big, and loads more bigger more serious.The circuit board of the pressure and speed regulating system now run is more outmoded, high failure rate, spare part
There is replacement in buying and maintenance difficult, detection is inconvenient in use, the disadvantages of being easily damaged in transportational process.It needs thus
Technology innovation is carried out, the application at scene can be better conformed to.
The design proposes that one kind can monitor fault-signal, and facilitates the master control borad of variable voltage control, can be according to reality
The size and Orientation switch motor rotor resistance of revolving speed.
Utility model content
The purpose of this utility model is to provide a kind of control panels, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model will provide the following technical solutions:
A kind of control panel, including start-up circuit, speed regulator circuit, current regulation circuit and rotor resistance switching electricity
Road, the start-up circuit connection speed adjuster circuit, speed regulator circuit are also respectively connected with current regulation circuit and turn
Sub- resistance switching circuit, current regulation circuit are also connected with rotor resistance switching circuit.
As the utility model by further technical solution: the start-up circuit includes that fault detection circuit and harmonic wave are set
Determine circuit.
As the utility model by further technical solution: the speed regulator circuit include velocity feedback circuits,
PID regulator and torque failure detection circuit, velocity feedback circuits are separately connected PID regulator and torque failure detection circuit.
As the utility model by further technical solution: the current regulation circuit include current feedback circuit and
The signal output end of pi regulator, current feedback circuit connects pi regulator.
As the utility model by further technical solution: the rotor resistance switching circuit by absolute value circuit, ratio
It is formed compared with device and relay.
Compared with prior art, the utility model has the beneficial effects that 1, examined according to release signal and speed preset signal
Failure is surveyed, starts motor operation and electromotor brake under non-failure conditions.2, is arranged to speed preset signal the oblique wave time, it is real
Existing stepless speed control.3, PID control is carried out to speed preset signal and feedback speed signal, realizes velocity close-loop control, output electricity
Machine is to constant current.4, it according to given value of current and current feedback, realizes PI control, realizes closed-loop current control, export silicon-controlled control
Signal processed to pulse-triggered plate 5, according to the size and Orientation switch motor rotor resistance of actual speed.
Detailed description of the invention
Fig. 1 is start-up circuit.
Fig. 2 is speed regulator circuit.
Fig. 3 is current regulation circuit.
Fig. 4 is rotor resistance switching circuit.
Specific embodiment
Below in conjunction with the utility model by the attached drawing in embodiment, to the utility model by the technical solution in embodiment
It being clearly and completely described, it is clear that described embodiment is only the utility model by a part of the embodiment, rather than
Whole embodiments.Embodiment based on the utility model by, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, belongs to range of the utility model by protection.
Embodiment 1: Fig. 1-4, a kind of control panel, including start-up circuit, speed regulator circuit, current regulator are please referred to
Circuit and rotor resistance switching circuit,
Circuit board on startup, detection fault-signal first, when fault-free, deposit simultaneously by release signal and speed preset signal
Smooth speed signal is then being generated according to the oblique wave time of setting, is discharging electromotor brake.Circuit block diagram such as Fig. 1 starting electricity
Shown in road.
As shown in Fig. 2 speed regulator circuit, the setting of velocity feedback is the number of pole-pairs and tachometer generator according to motor
Voltage select different divider resistances, make velocity feedback within the scope of 0~± 10V, with speed preset level be adapted.Speed
Given and feedback speed signal exports given value of current signal by PID closed-loop control.Simultaneously according to velocity feedback and speed preset
Torque failure is judged, such as when given speed is 5V and feedback speed 0V always, it can be determined that motor rotation blockage, output torque failure letter
Number, lockout circuit is forbidden running, and protects motor.
Current regulator is as shown in figure 3, generate electricity after the current-series resistance that current feedback is exported by current transformer
Pressure, according to the different mutual inductor of the selection of Motor of different capacity, the setting of velocity feedback is by adjusting concatenated resistance in Fig. 3
Reach suitable current feedback values, while circuit carries out signed magnitude arithmetic(al) and guarantees that output is positive voltage.The output of Fig. 2 speed regulator
Given value of current in include it is forward and reverse, go absolute value and current feedback to carry out PI in Fig. 3 and adjust output speed high low signal, together
When take symbol output speed direction signal.Enable signal in velocity magnitude signal, directional velocity signal and Fig. 1 is output to pulse
Trigger board controls silicon-controlled conducting.
The start-up circuit connection speed adjuster circuit, speed regulator circuit are also respectively connected with current regulation circuit
With rotor resistance switching circuit, current regulation circuit is also connected with rotor resistance switching circuit.
Embodiment 2, on the basis of embodiment 1, the rotor resistance switching circuit of the design is as shown in figure 4, according to coiling
The characteristic of motor is shorted different rotor resistances, is optimal torque according to the size of actual speed.The reality obtained by Fig. 2
One section of resistance amplitude, two sections of resistance amplitudes, three sections of resistance amplitudes and four sections of resistance amplitudes after border revolving speed takes absolute value, with setting
It carries out input comparator respectively to be compared, when being greater than one section of resistance amplitude, the relay of the switching of one section of rotor resistance is obtained
Electricity, one section of rotor resistance are shorted, and similarly, when revolving speed continues to increase, are shorted two sections of resistance, three sections of resistance and four sections of resistance.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment,
And without departing substantially from the spirit or essential attributes of the utility model, it can realize in other specific forms practical
It is novel.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical
It is novel by range be indicated by the appended claims rather than the foregoing description, it is intended that the equivalent requirements of the claims will be fallen in
Meaning and scope in all changes include the utility model will in.Any appended drawing reference in claim should not be regarded
To limit the claims involved.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of control panel, including start-up circuit, speed regulator circuit, current regulation circuit and rotor resistance switching electricity
Road, which is characterized in that the start-up circuit connection speed adjuster circuit, speed regulator circuit are also respectively connected with current regulation
Device circuit and rotor resistance switching circuit, current regulation circuit are also connected with rotor resistance switching circuit.
2. a kind of control panel according to claim 1, which is characterized in that the start-up circuit include fault detection circuit and
Harmonic wave initialization circuit.
3. a kind of control panel according to claim 1, which is characterized in that the speed regulator circuit includes velocity feedback
Circuit, PID regulator and torque failure detection circuit, velocity feedback circuits are separately connected PID regulator and torque failure detection
Circuit.
4. a kind of control panel according to claim 1, which is characterized in that the current regulation circuit includes current feedback
The signal output end of circuit and pi regulator, current feedback circuit connects pi regulator.
5. a kind of control panel according to claim 1 to 4, which is characterized in that the rotor resistance switching circuit is by exhausted
To value circuit, comparator and relay composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285798.7U CN209389960U (en) | 2019-03-07 | 2019-03-07 | A kind of control panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285798.7U CN209389960U (en) | 2019-03-07 | 2019-03-07 | A kind of control panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209389960U true CN209389960U (en) | 2019-09-13 |
Family
ID=67854718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920285798.7U Active CN209389960U (en) | 2019-03-07 | 2019-03-07 | A kind of control panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209389960U (en) |
-
2019
- 2019-03-07 CN CN201920285798.7U patent/CN209389960U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pan Li Inventor after: Xu Cheng Inventor after: Wu Zhonghui Inventor after: Ma Youliang Inventor after: Shen Yuehong Inventor after: Hu Wei Inventor before: Pan Li Inventor before: Xu Cheng Inventor before: Wu Zhonghui Inventor before: Ma Youliang Inventor before: Shen Yuehong Inventor before: Hu Wei |
|
| CB03 | Change of inventor or designer information |