Electrician skill training device for vocational college students

Abstract

The invention discloses an electrician skill training device for vocational college students, the electrician skill training device comprises a support frame and a mesh plate mounted on the support frame, an operation module is mounted on the mesh plate, the operation module comprises a power supply module, an industrial network module, a PLC module, an AC contactor module, a motor module and an electronic module, the power supply module, the industrial network module and the PLC module are sequentially mounted on a mesh plate on the front surface of the support frame from bottom to top, and the alternating current contactor module, the motor module and the electronic module are sequentially mounted on a mesh plate on the back surface of the support frame from top to bottom. The skill training device can meet the requirements of students in vocational colleges for skill training such as installation of different components, wiring process and circuit analysis, and experiments and fault analysis familiar with mechanical and electrical control circuits, and has the advantages of flexible application, high openness, compatibility, practical operation, high convenience and the like; the method is suitable for popularization and application in vocational colleges.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical teaching equipment, in particular to an electrician skill training device for vocational school students. Background Art

[0002] With the advancement of science and technology, the degree of automation is getting higher and higher. As the level of automation continues to update, the requirements for students majoring in mechatronics and electrical engineering are also getting higher and higher. In order to cultivate high-quality and high-level students, appropriate skill training equipment is necessary. It not only helps students understand the knowledge they have learned, but also improves their hands-on ability.

[0003] Through the investigation of the employment status of the graduates of our college, only 10% of the students can successfully pass the assessment of the enterprise and finally engage in electrician work. A fact that cannot be ignored is that students who graduate with a major in mechanical and electrical engineering are not qualified for electrician work. They need to study, train and assess again in the factory before they can become an electrician. The current electrician training equipment is aimed at students' understanding of components, and there are also training equipment for students in wiring. However, when practicing, students often recognize the components but do not know how to wire them, or they can wire but do not recognize the electrical components in the end, and only know the components or wiring. The reasons for this situation are as follows: 1. Students lack strong interest in learning; At present, compared with undergraduate colleges, students in higher vocational colleges have a relatively poor cultural foundation and little interest in learning, especially in learning book knowledge. This lack of interest in learning naturally affects the acquisition of knowledge and the mastery of skills.

[0004] 2. Lack of standardized basic electrician skills training: Basic skills training is the beginning of a student's exposure to electrical engineering professional skills training, the stage where good professional habits are formed, and the foundation for a future career. Without solid basic skills, proficiency in electrical operation techniques is impossible; without standardized training in basic electrical skills, one cannot be competent for complex jobs. In today's employment-oriented world, systematic and standardized training in basic electrical skills is particularly important for students.

[0005] 3. Lack of professional and hierarchical basic electrician training: Since the practical training content varies from major to major, the goal is to help students acquire electrical engineering knowledge and practical skills that are more suitable for their major. The practical training topics for students at different levels vary to teach students in accordance with their aptitude, better mobilize students' enthusiasm, and maximize their abilities.

[0006] Current electrical training equipment targets students' component recognition, circuit verification, and wiring training. However, during practice, students often learn about components and can verify circuits, but don't know how to wire them. Or, they can wire but don't understand the components themselves, simply understanding the components or wiring. This requires teachers to spend a significant amount of time and effort integrating these two aspects. Furthermore, throughout the entire teaching process, students must verify the circuit after it's fully built, which is extremely time-consuming.

[0007] To advance mechatronics education and teaching towards intelligent and green development, and to meet the needs of both university development and the changing times, cultivating interdisciplinary, multidisciplinary professionals with innovative and practical abilities has become a consensus among universities. To this end, they are actively promoting educational reforms in vocational colleges, continuously exploring innovative talent development models, and taking various measures to create conditions for cultivating these multidisciplinary professionals. However, existing teaching equipment offers limited practical training, only addressing specific disciplines and failing to cultivate multidisciplinary professionals. Therefore, it is crucial to provide an electrical skills training device that unifies all mechatronics knowledge points. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to address the problems existing in the background technology, thereby providing an electrician skill training device. By using this training device, not only can the various functions of different components be demonstrated, but also the wiring requirements of students can be met. Students can not only recognize the various functions of components, but also practice the layout of actual circuits. By systematically unifying the knowledge points of mechatronics on a device for skill training, it helps students understand the knowledge they have learned and improves their hands-on practical ability. Specifically, it is an electrician skill training device for vocational school students.

[0009] In order to solve the above technical problems, the technical solution adopted by the present invention is: an electrician skills training device for vocational school students, comprising a support frame and a mesh plate installed on the support frame, wherein an operating module is installed on the mesh plate, and the operating module includes a power supply module, an industrial network module, a PLC module, an AC contactor module, a motor module and an electronic module, wherein the power supply module, the industrial network module and the PLC module are installed in sequence from bottom to top on the mesh plate on the front of the support frame, and the AC contactor module, the motor module and the electronic module are installed in sequence from top to bottom on the mesh plate on the back of the support frame; the power supply module is electrically connected to the industrial network module, the PLC module, the AC contactor module, the motor module and the electronic module, respectively, and is used to provide power to the industrial network module, the PLC module, the AC contactor module, the motor module and the electronic module.

[0010] Furthermore, an electrician skills training device for vocational school students according to the present invention is used, and the power supply module includes a circuit breaker, a 12V switching power supply and a terminal block for providing power, and a server for providing computing or application services. The circuit breaker, 12V switching power supply and terminal block are arranged side by side from left to right in the lower area of the mesh plate on the front of the support frame, and the server is arranged on the mesh plate above the circuit breaker, 12V switching power supply and terminal block, wherein the circuit breaker is used to connect to an external three-phase power supply, and the 12V switching power supply is used to connect to the external three-phase power supply. An external two-phase power supply is connected, and the terminal blocks are provided with two groups, one of which is a high-voltage terminal block and the other is a low-voltage terminal block. The two groups of terminal blocks are staggered and arranged in the right area of the mesh plate. The high-voltage terminal block is connected to the output end of the circuit breaker, and the low-voltage terminal block is connected to the output end of the 12V switching power supply. The power module is electrically connected to the industrial network module, PLC module, AC contactor module, motor module and electronic module through the two groups of terminal blocks; and the server is a computer, and the server is electrically connected to the low-voltage terminal block in the terminal block.

[0011] Furthermore, in the electrician skills training device for vocational school students described in the present invention, the circuit breaker and the 12V switching power supply are both equipped with a leakage protection device, and the leakage protection device includes a current-type leakage protector, a voltage-type leakage protector, an anti-electric shock test wire and an emergency stop button.

[0012] Furthermore, an electrician skills training device for vocational school students described in the present invention is used, and the industrial network module includes a three-layer switch and a network server. There are three three-layer switches, and the three three-layer switches are arranged side by side in the middle area of the mesh plate on the front of the support frame, and the network server is arranged on the mesh plate above the three-layer switch. The three-layer switch contains a firewall, a wireless AP and an edge gateway for data diversion, and the network server is connected to the external network to provide network signals to the three-layer switch; the industrial network module is connected to the existing Industry 4.0 intelligent products through the three-layer switch.

[0013] Furthermore, an electrician skills training device for vocational school students described in the present invention is used, and the PLC module includes a PLC controller, a sensor and a touch screen. The PLC controller is provided with two groups, and the two groups of PLC controllers are arranged in parallel from top to bottom in the upper left area of the mesh plate on the front of the support frame, while the sensors and touch screen are arranged in parallel from top to bottom in the upper right area of the mesh plate on the front of the support frame. The PLC controller is electrically connected to the sensor and the touch screen respectively, and the PLC module is connected to existing electrical products through the sensor.

[0014] Furthermore, an electrician skills training device for vocational school students described in the present invention is used, and the AC contactor module includes a fuse, a contactor, a relay, a frequency converter and a control switch. The fuse, contactor, relay, frequency converter and control switch are all arranged in the upper area of the mesh plate on the back of the support frame. The contactor includes an AC contactor and a DC contactor, the relay includes a thermal relay and a time relay, and the control switch includes a push button switch and a travel switch. The fuse, contactor, relay, frequency converter and control switch are all used to connect and disconnect the main circuit with load or the large-capacity control circuit; the fuse, contactor, relay, frequency converter and control switch are respectively electrically connected to the power supply module through the PLC module.

[0015] Furthermore, an electrician skills training device for vocational school students described in the present invention is used, and the motor module includes a servo motor and a stepper motor. The servo motor is arranged in the middle area of the mesh plate on the back of the support frame, and the stepper motor is arranged on the mesh plate below the servo motor. The power input ends of the servo motor and the stepper motor are respectively electrically connected to the output ends of the high-voltage terminal block in the power module; the signal input ends of the servo motor and the stepper motor are respectively electrically connected to the signal output end of the PLC module through the AC contactor module, and the start or stop working status of the servo motor and the stepper motor are respectively controlled by the PLC module.

[0016] Furthermore, an electrician skills training device for vocational school students described in the present invention is used, wherein the electronic module includes an LED display screen, an electronic circuit and a single-chip computer module. The LED display screen is arranged in the lower area of the mesh plate on the back of the support frame, and the electronic circuit and the single-chip computer module are arranged on the mesh plate below the LED display screen. The power input ends of the LED display screen, the electronic circuit and the single-chip computer module are respectively electrically connected to the output ends of the low-voltage terminal block in the power supply module; the LED display screen is electrically connected to the electronic circuit and the single-chip computer module respectively.

[0017] Furthermore, an electrician skills training device for vocational school students described in the present invention is used, and a tool box is also arranged on the support frame, and general tools for electrician operations are arranged in the tool box, and the general tools include an electric pen, a screwdriver, a wire stripper, a needle-nose pliers, a diagonal pliers, a network cable crimping pliers, an electrician's knife, an electrician's bag, a wrench, an electric drill, an impact drill, an electric soldering iron, a soldering gun and a digital multimeter.

[0018] The electrician skill training device for vocational school students described in the present invention is adopted. Through the operation modules installed on the mesh plate, the operation modules include a power supply module, an industrial network module, a PLC module, an AC contactor module, a motor module and an electronic module. The six modules can be configured and used individually or in combination with each other, thereby making up for the problem that there is no wiring specifically for mechatronics students on the market. By freely combining different modules, different circuit verifications and function demonstrations are performed, which can not only enable students to recognize the various functions of components, but also allow students to practice the layout of actual circuits. By systematically unifying the knowledge points of mechatronics on a device for skill training, it is helpful for students to understand the knowledge they have learned and improve their hands-on practical ability.

[0019] It can be seen that the skill training device described in the present invention can meet the needs of vocational school students for skill training in the installation of different components, wiring technology, circuit analysis, and familiarity with mechanical electrical control circuit experiments and fault analysis. It has the advantages of flexible application, openness, compatibility, practicality and convenience, and is suitable for promotion and application in vocational schools. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in further detail below with reference to the accompanying drawings.

[0021] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 The structure of the present invention is schematically shown Figure 3 .

[0022] Shown in the figure: 1-support frame, 2-mesh plate, 3-power module, 31-circuit breaker, 32-12V switching power supply, 33-terminal block, 34-server, 4-industrial network module, 41-three-layer switch, 42-network server, 5-PLC module, 51-PLC controller, 52-sensor, 53-touch screen, 6-AC contactor module, 61-fuse, 62-contactor, 63-relay, 64-inverter, 65-control switch, 7-motor module, 71-servo motor, 72-stepper motor, 8-electronic module, 81-LED display, 82-electronic circuit, 83-single-chip microcomputer module, 9-toolbox. DETAILED DESCRIPTION

[0023] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0024] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", and "right" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of the present invention without substantially changing the technical content.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "provided with" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0026] It should be noted that the term "comprise" or any other variation is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus. Example 1

[0027] like Figure 1 and Figure 2 As shown, this embodiment provides an electrician skills training device for vocational school students, including a support frame 1 and a mesh plate 2 installed on the support frame 1, and an operating module is installed on the mesh plate 2, and the operating module includes a power supply module 3, an industrial network module 4, a PLC module 5, an AC contactor module 6, a motor module 7 and an electronic module 8, wherein the power supply module 3, the industrial network module 4 and the PLC module 5 are installed on the mesh plate 2 on the front of the support frame 1 from bottom to top, and the AC contactor module 6, the motor module 7 and the electronic module 8 are installed on the mesh plate 2 on the back of the support frame 1 from top to bottom; the power supply module 3 is electrically connected to the industrial network module 4, the PLC module 5, the AC contactor module 6, the motor module 7 and the electronic module 8, respectively, for providing power to the industrial network module 4, the PLC module 5, the AC contactor module 6, the motor module 7 and the electronic module 8.

[0028] The power supply module 3 includes a circuit breaker 31, a 12V switching power supply 32 and a terminal block 33 for providing power, and a server 34 for providing computing or application services. The circuit breaker 31, the 12V switching power supply 32 and the terminal block 33 are arranged side by side from left to right in the lower area of the mesh plate 2 on the front of the support frame 1, and the server 34 is arranged on the mesh plate 2 above the circuit breaker 31, the 12V switching power supply 32 and the terminal block 33. The circuit breaker 31 is used to connect to an external three-phase power supply, and the 12V switching power supply 32 is used to connect to an external two-phase power supply. The terminal blocks 33 are provided with two groups, one of which is a high-voltage terminal block and the other is a low-voltage terminal block. The two groups of terminal blocks 33 are arranged in a staggered manner in the right area of the mesh plate 2. The high-voltage terminal block is connected to the output end of the circuit breaker 31, and the low-voltage terminal block is connected to the output end of the 12V switching power supply 32. The power supply module 3 is electrically connected to the industrial network module 4, the PLC module 5, the AC contactor module 6, the motor module 7 and the electronic module 8 through the two groups of terminal blocks 33; and the server 34 is a computer, and the server 34 is electrically connected to the low-voltage terminal block in the terminal block 33.

[0029] The industrial network module 4 includes a three-layer switch 41 and a network server 42. There are three three-layer switches 41. The three three-layer switches 41 are arranged side by side in the middle area of the mesh plate 2 on the front of the support frame 1, and the network server 42 is arranged on the mesh plate 2 above the three-layer switch. The three-layer switch 41 contains a firewall, a wireless AP and an edge gateway for data diversion, and the network server 42 is connected to the external network to provide network signals to the three-layer switch 41; the industrial network module 4 is connected to the existing intelligent products of Industry 4.0 through the three-layer switch 41.

[0030] The PLC module 5 includes a PLC controller 51, a sensor 52 and a touch screen 53. The PLC controller 51 is provided with two groups. The two groups of PLC controllers 51 are arranged in parallel from top to bottom in the upper left area of the mesh plate 2 on the front of the support frame 1, and the sensor 52 and the touch screen 53 are arranged in parallel from top to bottom in the upper right area of the mesh plate 2 on the front of the support frame 1. The PLC controller 51 is electrically connected to the sensor 52 and the touch screen 53 respectively, and the PLC module 5 is connected to the existing electrical products through the sensor 52.

[0031] The AC contactor module 6 includes a fuse 61, a contactor 62, a relay 63, a frequency converter 64 and a control switch 65. The fuse 61, contactor 62, relay 63, frequency converter 64 and control switch 65 are all arranged in the upper area of the mesh plate 2 on the back of the support frame 1. The contactor 62 includes an AC contactor and a DC contactor. The relay 63 includes a thermal relay and a time relay, and the control switch 65 includes a push button switch and a travel switch. The fuse 61, contactor 62, relay 63, frequency converter 64 and control switch 65 are all used to connect and disconnect the main circuit with load or the large-capacity control circuit; the fuse 61, contactor 62, relay 63, frequency converter 64 and control switch 65 are respectively electrically connected to the power supply module 3 through the PLC module 5.

[0032] The motor module 7 includes a servo motor 71 and a stepper motor 72. The servo motor 71 is arranged in the middle area of the mesh plate 2 on the back of the support frame 1, and the stepper motor 72 is arranged on the mesh plate 2 below the servo motor 71. The power input ends of the servo motor 71 and the stepper motor 72 are respectively electrically connected to the output ends of the high-voltage terminal block in the power module 3; the signal input ends of the servo motor 71 and the stepper motor 72 are respectively electrically connected to the signal output ends of the PLC module 5 through the AC contactor module 6, and the start or stop working states of the servo motor 71 and the stepper motor 72 are respectively controlled by the PLC module 5.

[0033] The electronic module 8 includes an LED display screen 81, an electronic circuit 82 and a single-chip computer module 83. The LED display screen 81 is arranged in the lower area of the mesh plate 2 on the back of the support frame 1, and the electronic circuit 82 and the single-chip computer module 83 are arranged on the mesh plate 2 below the LED display screen 81. The power input ends of the LED display screen 81, the electronic circuit 82 and the single-chip computer module 83 are respectively electrically connected to the output ends of the low-voltage terminal block in the power module 3; the LED display screen 81 is electrically connected to the electronic circuit 82 and the single-chip computer module 83, respectively.

[0034] Furthermore, in order to achieve electricity safety and avoid short circuit problems caused by wrong connection of wires during actual operation, the circuit breaker 31 and the 12V switching power supply 32 are both equipped with leakage protection devices, which include current-type leakage protectors, voltage-type leakage protectors, anti-electric shock test wires and emergency stop buttons. Example 2

[0035] like Figure 3As shown, this embodiment is based on Example 1. To facilitate students' practical operations, the skill training device provided in this embodiment is used. A toolbox 9 is also provided on the support frame 1. The toolbox 9 contains general tools for electrician operation. The general tools include an electrician's pen, a screwdriver, a wire stripper, needle-nose pliers, diagonal pliers, network cable crimping pliers, an electrician's knife, an electrician's bag, a wrench, a hand drill, an impact drill, an electric soldering iron, a soldering gun, and a digital multimeter. With the provision of general tools, electrician tools can be correctly selected and used as needed when installing and repairing electrical equipment and lines.

[0036] The electrician skills training device for vocational school students of the present invention can meet the course requirements of electromechanical teaching in vocational schools through the configuration of six modules, which are described below respectively: 1. Power module To facilitate power supply, a power module is designed into the lower portion of the device, including a three-phase power supply input and a 12V switching power supply for the low-voltage portion of the device. This is done to align with electrical engineering standards, increase terminal block access, and neatly arrange the wiring of the entire device, allowing for integration with the power supply section of the "Electrical Fundamentals" course. Since wires connect the power supply to the load and between circuits, and the connection is the weak link in the entire electrical system, problems with this part inevitably affect the entire circuit. Therefore, wire connection technology is a fundamental skill for any electrician.

[0037] 2. Industrial network module This module is designed to support the intelligent development of Industry 4.0. It features three Layer 3 switches and a server, internally equipped with a firewall, wireless access points, and an edge gateway. The industrial network module utilizes a multi-tiered architecture, comprised of four core components that form a closed loop of "connection-protection-transmission-expansion." The Layer 3 industrial switch uses VLANs to divide data traffic (e.g., into PLC control segments and HMI monitoring segments). The industrial firewall utilizes a whitelisting mechanism and DPI deep security protection. Redundant switches utilize the STP protocol to achieve self-healing within 50ms from link failures. The collaborative operation of these components efficiently supports production line communications, aligning with the "Industrial Network Technology" course.

[0038] 3.PLC module This module allows you to lay electrical wiring and piping according to the schematic diagram. This allows you to connect PLCs, sensors, and other electrical components based on the schematic diagram, ensuring correct, secure connections and good shielding to reduce electromagnetic interference and ensure accurate and responsive operation of each actuator.

[0039] After assembly is complete, comprehensive commissioning is performed. Using specialized commissioning tools, mechanical motion accuracy, electrical signal transmission, and the coordinated operation of various units are tested. Problems that arise during commissioning, such as motor stalling, sensor misjudgment, and uncoordinated unit movement, are quickly identified and resolved through parameter adjustment, program optimization, and hardware repair. This continuously optimizes production line performance and enhances operational stability and reliability. This approach can be integrated with courses such as "PLC Technology" and "Sensor Technology."

[0040] 4.AC contactor module Contactors are primarily used to frequently connect and disconnect loaded main circuits or high-capacity control circuits. They are the most commonly used low-voltage automatic control device. Depending on the load they control, contactors can be divided into two types: AC contactors and DC contactors. This module primarily helps students read circuit diagrams and trains basic circuit wiring skills. It also involves extensive use of electrical instruments. Electrical instruments play a vital role in the detection, monitoring, and control of the entire electrical system. Therefore, as an electrician, it is not only important to understand the classification and characteristics of electrical instruments, but also to use correct measurement methods and control errors. The practical application of basic PLC instructions also provides an effective method for future programming.

[0041] When installing and repairing electrical equipment and wiring, it's essential to correctly select and use electrical tools. General electrical tools should include: general electrical tools such as a tester, screwdriver, pliers, needle-nose pliers, diagonal pliers, wire strippers, network cable crimping pliers, electrician's knives, electrician's bags, wrenches, and other tools; power tools such as hand drills, impact drills, electric hammers, and electric screwdrivers; and heating tools such as soldering irons, desoldering tools, and heat guns. To facilitate the use of various general tools, a tool box 9 is provided. This allows for the correct selection and use of electrical tools as needed during the installation and repair of electrical equipment and wiring. This facilitates integration with courses such as "PLC Technology," "Inverter Technology," "Electrical Fundamentals," "Relay Control," and "Motors and Traction."

[0042] 5. Motor module This module, along with the PLC module, forms the motor and drive training module, which also incorporates servo drive parameter settings. This allows for integration with courses such as "Machine Tool Electrical Control" and "Motor and Drive."

[0043] 6. Electronic modules This course integrates the identification of electronic circuit components and the principles of pinouts, and uses them in conjunction with established electronic circuit modules to verify microcontroller programs. This allows for integration with courses such as "Electronic Technology Fundamentals" and "Microcontroller Principles."

[0044] It can be seen that the electrician skill training device for vocational school students described in the present invention is adopted, through the operation module installed on the mesh plate 2, the operation module includes a power module 3, an industrial network module 4, a PLC module 5, an AC contactor module 6, a motor module 7 and an electronic module 8. The six modules can be used individually or in combination with each other, thereby making up for the problem that there is no wiring specifically for mechatronics students on the market. By freely combining different modules, different circuit verifications and function demonstrations are performed, which can not only make students recognize the various functions of components, but also allow students to practice the layout of actual circuits. By systematically unifying the knowledge points of mechatronics on a device for skill training, it helps students understand the knowledge they have learned and improves their hands-on practical ability.

[0045] To sum up, the skill training device described in the present invention can meet the needs of vocational school students for skill training in the installation of different components, wiring technology, circuit analysis, and familiarity with mechanical electrical control circuit experiments and fault analysis. It has the advantages of flexible application, openness, compatibility, practicality and convenience, and is suitable for promotion and application in vocational schools.

[0046] Other aspects of the present invention that are not described in detail are all conventional techniques known to those skilled in the art.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various changes and variations may be made. Any modifications, equivalent replacements, improvements, etc. made using the present invention should be included in the scope of protection of the present invention.

Claims

1. An electrician skill training device for vocational school students, comprising a support frame (1) and a mesh plate (2) mounted on the support frame (1), an operating module mounted on the mesh plate (2), and characterized in that: The operating module comprises a power supply module (3), an industrial network module (4), a PLC module (5), an AC contactor module (6), a motor module (7) and an electronic module (8), wherein the power supply module (3), the industrial network module (4) and the PLC module (5) are sequentially mounted on the mesh plate (2) on the front of the support frame (1) from bottom to top, and the AC contactor module (6), the motor module (7) and the electronic module (8) are sequentially mounted on the mesh plate (2) on the back of the support frame (1) from top to bottom; the power supply module (3) is electrically connected to the industrial network module (4), the PLC module (5), the AC contactor module (6), the motor module (7) and the electronic module (8) respectively, and is used to provide power to the industrial network module (4), the PLC module (5), the AC contactor module (6), the motor module (7) and the electronic module (8).

2. The electrician skills training device for vocational school students according to claim 1, characterized in that: The power supply module (3) includes a circuit breaker (31) for providing power, a 12V switching power supply (32) and a terminal block (33), and a server (34) for providing computing or application services. The circuit breaker (31), the 12V switching power supply (32) and the terminal block (33) are arranged side by side from left to right in the lower area of the mesh plate (2) on the front of the support frame (1), and the server (34) is arranged on the mesh plate (2) above the circuit breaker (31), the 12V switching power supply (32) and the terminal block (33). The circuit breaker (31) is used to connect to an external three-phase power supply, and the 12V switching power supply (32) is used to connect to an external two-phase power supply. The terminal blocks (33) are provided with two groups, one of which is a high-voltage terminal block and the other is a low-voltage terminal block. The two groups of terminal blocks (33) are arranged in a staggered manner in the right area of the mesh plate (2). The high-voltage terminal block is connected to the output end of the circuit breaker (31), and the low-voltage terminal block is connected to the output end of the 12V switching power supply (32). The power module (3) is electrically connected to the industrial network module (4), the PLC module (5), the AC contactor module (6), the motor module (7) and the electronic module (8) through the two groups of terminal blocks (33). The server (34) is a computer, and the server (34) is electrically connected to the low-voltage terminal block in the terminal block (33).

3. The electrician skills training device for vocational school students according to claim 2, characterized in that: The circuit breaker (31) and the 12V switching power supply (32) are both equipped with a leakage protection device, which includes a current-type leakage protector, a voltage-type leakage protector, an anti-electric shock test wire, and an emergency stop button.

4. The electrician skills training device for vocational school students according to claim 2, characterized in that: The industrial network module (4) includes a three-layer switch (41) and a network server (42). There are three three-layer switches (41). The three three-layer switches (41) are arranged side by side in the middle area of the mesh plate (2) on the front of the support frame (1), and the network server (42) is arranged on the mesh plate (2) above the three-layer switch. The three-layer switch (41) contains a firewall, a wireless AP and an edge gateway for data diversion, and the network server (42) is connected to the external network to provide network signals to the three-layer switch (41); the industrial network module (4) is connected to the existing Industry 4.0 intelligent products through the three-layer switch (41).

5. The electrician skills training device for vocational school students according to claim 2, characterized in that: The PLC module (5) includes a PLC controller (51), a sensor (52) and a touch screen (53). The PLC controller (51) is provided with two groups. The two groups of PLC controllers (51) are arranged in parallel from top to bottom in the upper left area of the mesh plate (2) on the front of the support frame (1), while the sensor (52) and the touch screen (53) are arranged in parallel from top to bottom in the upper right area of the mesh plate (2) on the front of the support frame (1). The PLC controller (51) is electrically connected to the sensor (52) and the touch screen (53) respectively. The PLC module (5) is connected to an existing electrical product through the sensor (52).

6. The electrician skills training device for vocational school students according to claim 2, characterized in that: The AC contactor module (6) includes a fuse (61), a contactor (62), a relay (63), a frequency converter (64) and a control switch (65). The fuse (61), contactor (62), relay (63), frequency converter (64) and control switch (65) are all arranged in the upper area of the mesh plate (2) on the back of the support frame (1). The contactor (62) includes an AC contactor and a DC contactor. The relay (63) includes a thermal relay and a time relay. The control switch (65) includes a push button switch and a travel switch. The fuse (61), contactor (62), relay (63), frequency converter (64) and control switch (65) are all used to connect and disconnect a main circuit with a load or a large-capacity control circuit. The fuse (61), contactor (62), relay (63), frequency converter (64) and control switch (65) are electrically connected to the power module (3) through the PLC module (5).

7. The electrician skills training device for vocational school students according to claim 2, characterized in that: The motor module (7) comprises a servo motor (71) and a stepper motor (72); the servo motor (71) is arranged in the middle area of the mesh plate (2) on the back of the support frame (1), and the stepper motor (72) is arranged on the mesh plate (2) below the servo motor (71); the power input ends of the servo motor (71) and the stepper motor (72) are respectively electrically connected to the output end of the high-voltage terminal block in the power module (3); the signal input ends of the servo motor (71) and the stepper motor (72) are respectively electrically connected to the signal output end of the PLC module (5) through the AC contactor module (6); and the start or stop working state of the servo motor (71) and the stepper motor (72) are respectively controlled by the PLC module (5).

8. The electrician skills training device for vocational school students according to claim 2, characterized in that: The electronic module (8) comprises an LED display screen (81), an electronic circuit (82) and a single-chip computer module (83); the LED display screen (81) is arranged in the lower area of the mesh plate (2) on the back of the support frame (1), and the electronic circuit (82) and the single-chip computer module (83) are arranged on the mesh plate (2) below the LED display screen (81); the power input ends of the LED display screen (81), the electronic circuit (82) and the single-chip computer module (83) are respectively electrically connected to the output end of the low-voltage terminal block in the power module (3); and the LED display screen (81) is respectively electrically connected to the electronic circuit (82) and the single-chip computer module (83).

9. The electrician skills training device for vocational school students according to claim 1, characterized in that: A tool box (9) is also provided on the support frame (1), and general tools for electrician operation are provided in the tool box (9), and the general tools include an electric pen, a screwdriver, a wire stripper, a needle-nose pliers, a diagonal pliers, a network cable crimping pliers, an electrician's knife, an electrician's bag, a wrench, a hand drill, an impact drill, an electric soldering iron, a soldering gun, and a digital multimeter.

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