CN202816239U - Electrical training device - Google Patents
Electrical training device Download PDFInfo
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- CN202816239U CN202816239U CN 201220475335 CN201220475335U CN202816239U CN 202816239 U CN202816239 U CN 202816239U CN 201220475335 CN201220475335 CN 201220475335 CN 201220475335 U CN201220475335 U CN 201220475335U CN 202816239 U CN202816239 U CN 202816239U
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Abstract
Disclosed is an electrical training device, which comprises a power supply, a controller, a sampling unit, a driving unit, a three-phase alternating-current input, a contactor, an on-off control unit, a training part assembly unit, a wiring terminal block, a training circuit connecting wire, a communication interface, a computer and an indicating element. Through different wire connection schemes, inching and self-locking control, forward and reverse rotation control, two-motor start-stop sequence control, variable speed regulation control, two-site control, reverse connection braking control and energy consumption braking control of three-phase asynchronous motors can be completed, which brings convenience to electric practice teaching and can help students to improve the practical operation ability.
Description
Technical field
The present invention relates to the device of a kind of teaching, training device, particularly Vocational colleges electromechanical integration and the electric real training of electrical automation student, belong to technical field of electricity.
Background technology
School of High Profession Technology cultivates to have certain knowwhy and the stronger ability of practice, be purpose higher education towards basic unit, facing to manufacture, practical, poly-talented and technical ability type specialized personnel service-oriented and management First Line Professional, in order to cultivate the high-technology applied talent, just should make the student possess necessary knowwhy and science and culture basis, the skilled backbone technology of grasping, stress practical application, stress the integrated use of relevant knowledge.In order to cultivate the operating ability of Higher Vocational Students ', in conjunction with the course of learning, school need to carry out study, training and verification of professional technical ability on the vocational skills to each student.Owing in learning process, be difficult to see phenomenon, the consequence of various Wrong wiring ways and generation, must carry out the practical operation training to the student.In present training and learning, if the student only learns by books or teacher's explanation, because not directly perceived, thereby student's indigestibility and grasp.How fast and effeciently allowing some basic operating technical abilities of students by Practice Curriculum, is one of task of school teacher's research.
At present, also there are some to be used for the device of electric real training, such as patent 200920206551.8, electric practical-training device is made a kind of Combined electrical training cabinet with table, can be in the articulated window of cabinet top during use change and articulate real training circuit link plate by the needs of real training content, its advantage be to have improved work and efficiency of teaching.But this kind training cabinet also has the following disadvantages:
1) fault and code can not be set, be not easy to students ' analysis and investigation fault.
2) still there is more difference aspect the hands-on consistent with reality.
3) correctness that can not butted line is judged fast.
Summary of the invention
The object of the invention is to propose a kind of intelligentized electric real training control device, can according to different design proposals different trouble locations be set and be implemented by controller by computing machine, be convenient to students ' analysis and the training of investigation fault, and can be used as the Technique Authentication checking device, simultaneously can also be by relevant electric current and voltage value in the computer monitor electric wiring.
The present invention is achieved in that a kind of electric practical-training device, it is characterized in that, comprising: power supply 1, controller 2, sampling unit 3, driver element 4, three-phase alternating current input 5, contactor 6, on-off control unit 7, real training parts unit 8, connecting terminal block 9, real training circuit connecting wire 10, communication interface 11, computing machine 12, indication 13.Wherein:
Controller 2 links to each other with power supply 1, contactor 6, sampling unit 3, driver element 4, communication interface 11, indication 13;
On-off control unit 7 links to each other with real training parts unit 8, sampling unit 3, driver element 4, connecting terminal block 9.
Voltage transformer (VT), current transformer and corresponding isolation, signal conditioning circuit are arranged in the described sampling unit 3.
Relay, contactor and electrical contact thereof that described on-off control unit 7 is controlled by driver element 4 form, and electrical contact links to each other with real training parts unit 8 and connecting terminal block 9.
Be equipped be used to the parts of finishing practical training project, components and parts in the described real training parts unit 8, its kind comprises: low-voltage circuit breaker, fuse, A.C. contactor, relay, the time relay, speed relay, button, thermal overload relay, three-phase induction motor, three-phase double-speed motor, diode, current-limiting resistance, voltage table, reometer.
The present invention uses above-mentioned critical piece to consist of according to above-mentioned design.Its principle of work is: power supply 1 provides direct supply for controller and interlock circuit, and controller 2 is cores of the intelligent control of actual training device, and main devices is microcontroller or PLC, moves under the control of program.Provide three-phase alternating current input 5 contacts by contactor 6 of power supply to be connected on the three-phase supply terminal of connecting terminal block 9 to actual training device, all parts in the real training parts unit 8, the electric terminal of components and parts all is connected on the connecting terminal block 9 by on-off control unit 7, all terminals on connecting terminal block 9 all have sign, the electrical part assembly of using with real training, the sign of components and parts is corresponding, like this, student's wiring when real training only needs to find corresponding terminal to finish wiring with real training circuit connection 10 at connecting terminal block and gets final product, directly frequent dismounting on electrical equipment when having avoided real training has prolonged life-span of actual training device.The relay that on-off control unit 7 is controlled by driver element 4, contactor and electrical contact thereof form, the folding condition of each contact depends on set trouble location code, implement by controller 2 outputs and through driver element 4, only use when arranging that fault is used for students ' analysis and the training of investigation fault or examine as Technique Authentication, when not needing artificially fault to be set, each contact that is connected between real training parts unit 8 and connecting terminal block 9 corresponding line is closure state.
Operation has the monitoring software supporting with controller 2 in computing machine 12, can change easily practice scheme and trouble location is set and code by supervising software, download in the controller 2 by communication interface 11, control relevant relay or contactor by controller 2 by driver element 4.With the position of students ' analysis fault and trouble location and the code contrast of setting, can determine the correctness of student's fault analysis and judgement in real training.
Voltage transformer (VT), current transformer and corresponding isolation, signal conditioning circuit are arranged in the sampling unit 3, effect has 3 points: the one, for the state of sampling on-off control unit 7 each contact, be convenient to form closed-loop control with driver element 4, in order to determine whether on-off control unit 7 self exists fault; The 2nd, by voltage transformer (VT), the relevant voltage and current of current transformer sampling, relevant data communication device is crossed communication interface 11 send to computing machine 12, so that the electric current and voltage data that on computers monitoring is correlated with; The 3rd, the automatic correctness that detects wiring after the student connects the line by the practice scheme of setting, after judging that wiring is correct, just output signal allows contactor 6 adhesives, when judging that wiring provides indication 13 when wrong, and forbid contactor 6 adhesives, thereby can avoid some serious consequences to occur.
Advantage of the present invention and effect:
(1) can fault and code be set easily by computing machine, be convenient to students ' analysis, investigation fault.
When (2) using as the electric Technique Authentication examination of electrician, can raise the efficiency and intelligent degree.
(3) can be by the relevant electric current and voltage value of computer monitor.
(4) only need to finish wiring at connecting terminal block during real training and get final product, avoided directly frequently dismounting on electrical equipment, prolonged the life-span of actual training device.
(5) can judge the wiring of different practice schemes, thereby can avoid some serious consequences to occur.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is circuit block diagram of the present invention.
Embodiment
Referring to Fig. 1, power supply 1 is converted to the direct current of 12V, 5V and 3.3V with the civil power of 220V50Hz, is the power supply of controller and interlock circuit, and controller 2 is made of C8051F340 single-chip microcomputer and relevant circuit thereof, moving under the control of program, is the core of the intelligent control of actual training device.
Providing the three-phase alternating current input 5 of power supply to actual training device is the three-phase four-wire system electric power incoming line, and 4 groups of normally opened contacts by contactor 6 are connected on 1～4 terminal of connecting terminal block 9.
Be equipped be used to the parts of finishing practical training project, components and parts in the real training parts unit 8, comprise: 1 of low-voltage circuit breaker, 2 of fuses, 3 of A.C. contactors, 1 on relay, 1 in the time relay, 1 of speed relay, 4 on button, 2 of thermal overload relaies, 2 of three-phase induction motors, 1 of three-phase double-speed motor, 1 of diode, 4 of current-limiting resistances, 2 of voltage tables, 3 in reometer.Wherein the electric terminal of all parts except voltage table, reometer, components and parts all is connected on the connecting terminal block 9 by on-off control unit 7, all terminals on connecting terminal block 9 all have sign, the electrical part assembly of using with real training, the sign of components and parts are corresponding, like this, student's wiring when real training only needs to find corresponding terminal to finish wiring with real training circuit connection 10 at connecting terminal block and gets final product, frequent dismounting on electrical equipment when having avoided real training has prolonged serviceable life of actual training device.
The relay that on-off control unit 7 is controlled by driver element 4, contactor and electrical contact thereof form, the folding condition of each contact depends on set trouble location code, implement by controller 2 outputs and through driver element 4, only use when arranging that fault is used for students ' analysis and the training of investigation fault or examine as Technique Authentication, when not needing artificially fault to be set, each contact that is connected between real training parts unit 8 and connecting terminal block 9 corresponding line is closure state.
Operation has the monitoring software supporting with controller 2 in computing machine 12, can change easily practice scheme and trouble location is set and code by supervising software, download in the controller 2 by communication interface 11, control relevant relay or contactor by controller 2 by driver element 4.With the position of students ' analysis fault and trouble location and the code contrast of setting, can determine the correctness of student's fault analysis and judgement in real training.
Voltage transformer (VT), current transformer and corresponding isolation, signal conditioning circuit are housed in the sampling unit 3, effect has 3 points: the one, for the state of each contact of sampling on-off control unit, be convenient to form closed-loop control with driver element 4, in order to determine whether on-off control unit 7 self exists fault; The 2nd, by voltage transformer (VT), the relevant voltage and current of current transformer sampling, relevant data communication device is crossed communication interface 11 send to computing machine 12, so that the electric current and voltage data that on computers monitoring is correlated with; The 3rd, the automatic correctness that detects wiring after the student connects the line by the practice scheme of setting, after judging that wiring is correct, just output signal allows contactor 6 adhesives, when judging that wiring provides indication 13 when wrong, and forbid contactor 6 adhesives, thereby can avoid some serious consequences to occur.
This electric practical-training device is during as practice-training teaching, by default different connection plan, can finish the crawl of threephase asynchronous and open first sequential control, pole-changing control control, two places control, reversing braking control, the dynamic braking control that stops afterwards from lock control, rotating control, 2 motors, brought convenience for electric practice-training teaching, be conducive to the student and improve operating ability.This electric practical-training device can be finished some electric skill examinations operations commonly used during as the Technique Authentication checking device, the wiring code that teacher can be correct according to the exam question temporary establishment, thus can allow the correctness of computing machine automatic decision student operation.
Claims (4)
1. electric practical-training device, it is characterized in that, comprise: power supply (1), controller (2), sampling unit (3), driver element (4), three-phase alternating current input (5), contactor (6), on-off control unit (7), real training parts unit (8), connecting terminal block (9), real training circuit connecting wire (10), communication interface (11), computing machine (12), indication (13), wherein: controller (2) and power supply (1), contactor (6), sampling unit (3), driver element (4), communication interface (11), indication (13) links to each other; On-off control unit (7) links to each other with real training parts unit (8), sampling unit (3), driver element (4), connecting terminal block (9).
2. a kind of electric practical-training device according to claim 1 is characterized in that voltage transformer (VT) is arranged in the described sampling unit (3), current transformer and corresponding isolation, signal conditioning circuit.
3. a kind of electric practical-training device according to claim 1, it is characterized in that relay, contactor and electrical contact thereof that described on-off control unit (7) is controlled by driver element (4) form, electrical contact links to each other with real training parts unit (8) and connecting terminal block (9).
4. a kind of electric practical-training device according to claim 1, it is characterized in that being equipped be used to the parts of finishing practical training project, components and parts in the described real training parts unit (8), its kind comprises: low-voltage circuit breaker, fuse, A.C. contactor, relay, the time relay, speed relay, button, thermal overload relay, three-phase induction motor, three-phase double-speed motor, diode, current-limiting resistance, voltage table, reometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475335 CN202816239U (en) | 2012-09-13 | 2012-09-13 | Electrical training device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475335 CN202816239U (en) | 2012-09-13 | 2012-09-13 | Electrical training device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816239U true CN202816239U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220475335 Expired - Fee Related CN202816239U (en) | 2012-09-13 | 2012-09-13 | Electrical training device |
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| Country | Link |
|---|---|
| CN (1) | CN202816239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855796A (en) * | 2012-09-13 | 2013-01-02 | 南京交通职业技术学院 | Electrical practice training device |
-
2012
- 2012-09-13 CN CN 201220475335 patent/CN202816239U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855796A (en) * | 2012-09-13 | 2013-01-02 | 南京交通职业技术学院 | Electrical practice training device |
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| Date | Code | Title | Description |
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| 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: 20130320 Termination date: 20130913 |