An electric visual demonstration device for teaching

Abstract

The application relates to the field of teaching practical training equipment, and discloses a teaching electrical visual demonstration device, which comprises a cabinet body, a base plate vertically arranged in the cabinet body, a plurality of clamping rails arranged on the base plate, electrical elements clamped on the clamping rails, a plurality of wiring terminals clamped side by side on each electrical element, each wiring port being connected to one wiring terminal through a soft wire, each wiring terminal being connected to a conductive column, one end of the conductive column being electrically connected to the conductor of the wiring terminal, the other end of the conductive column being a jack, and a connecting wire, the two ends of the connecting wire being provided with plugs matched with the jacks, a transparent cabinet door being arranged in front of the cabinet body, and a strip-shaped window through which the conductive column passes being arranged on the transparent cabinet door. In the practical training process, the wiring ports of the electrical elements and the wiring terminals do not need to be repeatedly operated, and the students only need to insert the connecting wire into the corresponding conductive column according to the electrical drawing, so that the durability of the electrical practical training device and the intuitiveness of the student practical training are realized.

Description

Technical Field

[0001] This invention relates to the field of teaching and training equipment, specifically to an electrical visualization demonstration device for teaching. Background Technology

[0002] In vocational schools, technical colleges, and corporate training programs, to align with real-world application scenarios, courses such as electrical control, low-voltage power distribution, and machine tool troubleshooting still utilize physical workbenches with real components and screw-pressed terminals. Students follow diagrams step-by-step to complete wiring. During practical training, due to their lack of familiarity, students often need to repeatedly disconnect and reconnect the wires. With a large number of trainees in a single institution, each student averages 4-6 disassembly and reassembly operations per day.

[0003] During disassembly and assembly, the terminal blocks become the weakest link. The nominal plug-in / plug-out life of ordinary UK series terminals is only about 50 cycles, which students can exceed within 1-2 weeks of hands-on practice. Frequent stripping of the copper posts on electrical components easily damages the threads. Repeated pressure with a screwdriver causes irreversible damage to the casing of electrical components and terminal blocks, such as chipped corners or cracks, leading to potential electrical exposure hazards. During repeated wiring and disassembly, the contact area between the stripped copper posts and the wires decreases, causing overheating and oxidation, further exacerbating the problem. This also brings a series of derivative problems: high equipment maintenance costs; decreased teaching efficiency: teachers need to spend a lot of time checking and replacing damaged terminals. Loose wires can also easily cause short circuits, tripping circuit breakers and burning out PLC I / O modules.

[0004] Therefore, there is an urgent need to develop a visual, repeatable, and non-destructive electrical demonstration device for teaching to replace the current situation of traditional electrical training involving disconnecting and reconnecting wires. Utility Model Content

[0005] The present invention aims to provide an electrical visualization demonstration device for teaching purposes, in order to solve the problem that frequent disconnection and reconnection of electrical components in current electrical training is prone to damage to the terminals.

[0006] To address the aforementioned problems, this application provides the following technical solution: an electrical visualization demonstration device for teaching, comprising a cabinet, a base plate vertically mounted inside the cabinet, multiple rows of mounting rails on the base plate, electrical components required for electrical training being mounted on the mounting rails, multiple terminals being mounted side-by-side on the side of each electrical component, each terminal on the electrical component being individually connected to a terminal via a flexible wire, each terminal being connected to a conductive post, one end of the conductive post being electrically connected to the conductor of the terminal, the other end of the conductive post being a socket and also containing a connecting wire, the connecting wire having plugs with matching sockets at both ends, a transparent cabinet door at the front of the cabinet, and a strip-shaped window on the transparent cabinet door allowing the conductive post to pass through.

[0007] The principle of this scheme is as follows: Based on the training requirements, electrical components corresponding to the electrical training are clipped onto the rail. The wiring ports of the electrical components are connected to the terminal blocks via flexible wires. The conductive posts on the terminal blocks extend the wiring ends to the transparent cabinet door. This not only isolates the electrical components within the cabinet but also allows trainees to visually observe the components and their internal wiring. During the training, trainees insert the two ends of the connecting wires into the corresponding conductive posts according to the circuit diagram, thereby completing the circuit connection and achieving the training objective.

[0008] The advantage of this solution is that it replaces the previous method of loosening the bolts on the electrical component's terminals before connecting the wires with a method where the connecting wire is simply inserted into a conductive post at the same potential as the electrical component's terminal. This eliminates the need to loosen and tighten the bolts on the electrical components and terminals, thus reducing the risk of damage to the electrical components. As long as the wires at the electrical component's terminals are initially securely connected, there is no risk of point discharge caused by loose connections.

[0009] The transparent cabinet door has a strip window with conductive posts extending out of the door, allowing trainees to connect the wires to the conductive posts without opening the door.

[0010] Preferably, the surface of the electrical component is provided with an insulating transparent baffle, which is fixedly connected to the surface of the electrical component by bolts, and a label marking the electrical symbol of the electrical component is affixed to the transparent baffle. The insulating transparent baffle provides primary protection for the electrical component, preventing trainees from opening the cabinet door and touching the electrical component while it is powered on, thus avoiding the problem of electric leakage and injury. Additionally, the label can indicate the electrical symbol of the electrical component, which helps trainees understand the physical knowledge of the correspondence between electrical symbols and electrical components.

[0011] Preferably, the strip window has an inwardly rolled edge with a semi-circular cross-section, forming a gap between the upper and lower rolled edges to allow the conductive post to pass through. The rolled edge not only strengthens the mechanical strength of the strip window but also reduces the gap between the conductive posts and prevents students from inserting their fingers into it. The semi-circular cross-section of the rolled edge forms a groove from the outside in, ensuring the conductive post does not exceed the strip window's boundaries while still allowing for wire insertion.

[0012] Preferably, the conductive post includes an insulating outer shell in four colors: red, yellow, blue, and black. The colors are used to distinguish the three phases of the power lines and the control lines, making the wiring intuitive.

[0013] Preferably, the conductive post is threadedly connected to the terminal block, and the bottom of the conductive post has an elastic conductor that contacts the internal conductor of the terminal block. During frequent insertions and removals, the conductive post may be damaged; however, it can be removed and replaced, reducing the maintenance cost of the electrical training equipment. The elastic conductor at the bottom of the conductive post, contacting the internal conductor of the terminal block, ensures a tight electrical connection between the conductive post and the conductor inside the terminal block.

[0014] Preferably, the substrate is further fixed with wire channels, which are arranged longitudinally and transversely on both sides of the electrical components, and the flexible wires are stored in the wire channels. The wire channels store the flexible wires, making the electrical cabinet more neat and aesthetically pleasing.

[0015] Preferably, the electrical visualization demonstration device further includes a motor module. The motor module comprises a shock-absorbing base and a motor body. The motor body is fixedly mounted on the shock-absorbing base, and its surface has a wiring panel with sockets for matching the connecting wires. The output shaft of the motor body is isolated using a safety net. The motor, as the actuator for electrical training, is treated as a separate, detachable component, used only during training to prevent damage to the motor module. The shock-absorbing base prevents mechanical vibrations from the motor's rotation from being transmitted to the training platform, thus avoiding noise or damage to electrical components. The safety net isolates the motor's output shaft to prevent injury to trainees.

[0016] Preferably, a horizontal worktable is integrally connected to the lower end of the cabinet, and the worktable is perpendicular to the cabinet. A drawer is provided below the worktable for storing items. The worktable can be used to store necessary training items, such as motor modules, and the drawer below the worktable can store items such as connecting cables.

[0017] Preferably, the cabinet also includes a separate inverter control box, which houses the inverter and its driver. The upper panel of the inverter control box is angled between the cabinet and the control panel. The upper panel has an operating window that exposes the inverter's control panel, and it also has conductive sockets for leading out the inverter's terminals. As a precision instrument in electrical equipment, and relatively expensive, the inverter is physically protected by the control box. The conductive sockets on the upper panel of the inverter control box allow it to be connected to other electrical components via connecting wires.

[0018] Finally, the top of the cabinet is equipped with a roller shutter assembly for covering one side of the transparent cabinet door. The roller shutter assembly includes a retractable roller shutter located on the upper edge of the cabinet, with an operating lever in front of the retractable roller shutter to pull it open, and hooks at the bottom of the cabinet to fix the operating lever. When the electrical training device is not in use, the roller shutter assembly covers the electrical components, preventing dust from entering the cabinet through the strip window. Attached Figure Description

[0019] Figure 1 A schematic diagram of the connection layout of electrical components in an electrical visualization demonstration device for teaching purposes;

[0020] Figure 2 A side view diagram of an electrical visualization demonstration device for teaching purposes;

[0021] Figure 3 This is a schematic diagram of the connecting line structure;

[0022] Figure 4 for Figure 1 A partially enlarged schematic diagram of the layout of electrical components, terminals, and cable trays;

[0023] Figure 5 A schematic diagram of a terminal block structure including conductive posts;

[0024] Figure 6 for Figure 1 A schematic diagram of the side structure of the transparent cabinet door;

[0025] Figure 7 This is a schematic diagram of the structure in which the connecting wire and the conductive post are plugged in.

[0026] Figure 8 This is a schematic diagram of the connection structure between the roller shutter assembly and the cabinet.

[0027] The reference numerals in the accompanying drawings include: cabinet 1; base plate 2; rail 3; electrical components 4; insulating transparent baffle 41; terminal block 5; conductive post 51; wire trough 6; inverter box 7; inverter 71; transparent cabinet door 8; strip window 9; rolled edge 91; motor body 10; safety net 11; shock-absorbing base 12; operating table 13; connecting wire 14; plug 141; retractable roller shutter 15; operating lever 151; hook 16. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] As attached Figure 1 , Figure 2 and Figure 4As shown, an electrical visualization demonstration device for teaching includes a cabinet 1. A base plate 2 is vertically mounted inside the cabinet 1. Multiple rows of rails 3 are mounted on the base plate 2, and electrical components 4 required for electrical training are clamped onto the rails 3. Multiple terminals 5 are clamped side-by-side on the side of each electrical component 4. Each connection port on the electrical component 4 is individually connected to a terminal 5 via a flexible wire. Each terminal 5 is connected to a conductive post 51, one end of which is electrically connected to the conductor of the terminal 5, and the other end of which is a socket. The insulating outer shell of the conductive post 51 can be divided into four colors: red, yellow, blue, and black. The colors visually distinguish the power lines and control lines, making the wiring intuitive. Wire grooves 6 are also fixed on the base plate 2, arranged longitudinally and laterally on both sides of the electrical components 4, and the flexible wires are stored in the wire grooves 6.

[0030] A horizontal workbench 13 is integrally connected to the lower end of the cabinet 1. The workbench 13 is perpendicular to the cabinet 1, and a drawer is provided below the workbench 13 for storing items. The workbench 13 can be used to store necessary items for practical training, such as motor modules, and the drawer below the workbench can store items such as connecting cables.

[0031] The cabinet 2 also has a separate inverter box 7, which contains an inverter 71 and a driver. The upper panel of the inverter box is inclined between the cabinet 1 and the operating table 13. The upper panel of the inverter box 7 has an operating window that exposes the operating panel of the inverter 71. The upper panel of the inverter box 7 also has conductive sockets for leading out the terminals of the inverter.

[0032] The demonstration device is also equipped with a motor module, which includes a shock-absorbing base 12 and a motor body 10. The motor body 10 is fixedly mounted on the shock-absorbing base 12. The surface of the motor body 10 is provided with a wiring panel, which is provided with a socket for matching connection wires. The output shaft of the motor body 10 is isolated by a safety net 11.

[0033] The motor, serving as the actuator in electrical training, is a separate, detachable component used only during training. This prevents damage to the motor module. The vibration-damping base prevents mechanical vibrations from the motor's rotation from being transmitted to the training platform, thus avoiding noise or damage to electrical components. The motor's output shaft is isolated with a safety net to prevent injury to trainees.

[0034] like Figure 3 As shown, a connecting wire 14 can be inserted into the socket of the conductive post 51. The connecting wire 14 has a plug 141 with matching sockets at both ends. The plug 141 is a single-hole plug.

[0035] like Figure 4As shown, the surface of electrical component 4 is also equipped with an insulating transparent baffle 41. The insulating transparent baffle 41 is fixedly connected to the surface of electrical component 4 by bolts, and a label marking the electrical symbol of the electrical component is affixed to the insulating transparent baffle 41. The insulating transparent baffle 41 provides the first-level protection for electrical component 4, preventing students from opening the cabinet door and touching the electrical component while it is powered on, thus avoiding the problem of electric leakage and injury. In addition, the electrical symbol of the electrical component can be written on the label, which can help students understand the physical knowledge of the correspondence between electrical symbols and electrical components.

[0036] like Figure 5 As shown, the conductive post 51 is threadedly connected to the terminal 5, and the bottom of the conductive post 51 has an elastic conductor that contacts the internal conductor of the terminal 5. The conductive post 51 may be damaged during long-term insertion and removal; it can be disassembled and replaced, reducing the maintenance cost of the electrical training equipment. The elastic conductor at the bottom of the conductive post 51, which contacts the internal conductor of the terminal 5, ensures a tight electrical connection between the conductive post 51 and the conductor inside the terminal 5.

[0037] like Figure 2 , Figure 6 and Figure 7 As shown, a transparent cabinet door 8 is provided at the front of the cabinet body 1, and a strip window 9 is opened on the transparent cabinet door 8 to allow the conductive post 51 to pass through. The conductive post 51 extends out of the transparent cabinet door 8, so the trainee can connect the connecting wire 14 to the conductive post 51 without opening the transparent cabinet door.

[0038] like Figure 6 As shown, the edge of the strip window 9 is provided with an inwardly rolled edge 91. The cross-section of the rolled edge 91 is semi-circular, and a gap is formed between the upper and lower rolled edges 91 to allow the conductive post 51 to pass through. The rolled edge 91 of the strip window 9 not only strengthens the mechanical strength of the strip window 9, but also reduces the gap between the conductive post 51 and the strip window 9, preventing students from inserting their fingers into the strip window 9.

[0039] like Figure 8 As shown, the top of the cabinet 1 is equipped with a roller shutter assembly for covering one side of the transparent cabinet door 8. The roller shutter assembly includes a retractable roller shutter 15 located on the upper edge of the cabinet. An operating lever 151 for pulling the roller shutter open is located in front of the retractable roller shutter 15, and a hook 16 for fixing the operating lever 151 is located at the bottom of the cabinet. When the electrical training device is not in use, the roller shutter assembly covers the electrical components to prevent dust from entering the cabinet through the strip window.

[0040] The formation process of this teaching electrical visualization demonstration device in this embodiment is as follows:

[0041] According to the training requirements, the electrical components corresponding to the electrical training are clipped onto the rail. The wiring ports of the electrical components are connected to the terminals through flexible wires. The two joints of the flexible wires can be marked with wire lugs and wire numbers to facilitate the tracing of the circuit.

[0042] Conductive post 51 extends the terminal block 5 to the transparent cabinet door 8, which isolates the electrical component 4 within the cabinet 1, allowing trainees to directly observe the component 4 and its internal wiring. During training, trainees can connect the circuit by inserting both ends of the connecting wire 14 into the corresponding conductive post 51 according to the circuit diagram, without opening the transparent cabinet door 8, thus completing the electrical visualization demonstration and training.

[0043] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An electrical visualization demonstration device for teaching, comprising a cabinet, a base plate vertically mounted inside the cabinet, multiple rows of mounting rails on the base plate, and electrical components required for electrical training being mounted on the mounting rails, characterized in that: Each electrical component has multiple terminals attached side by side. Each terminal on the electrical component is individually connected to a terminal via a flexible wire. Each terminal is connected to a conductive post. One end of the conductive post is electrically connected to the conductor of the terminal, and the other end of the conductive post is a socket and also includes a connecting wire. Both ends of the connecting wire are equipped with plugs that match the sockets. The cabinet has a transparent door at the front, and the transparent door has a strip window that allows the conductive post to pass through.

2. The teaching electrical visualization demonstration device according to claim 1, characterized in that: The surface of the electrical component is provided with an insulating transparent baffle, which is fixedly connected to the surface of the electrical component by bolts, and a label marking the electrical symbol of the electrical component is provided on the transparent baffle.

3. The teaching electrical visualization demonstration device according to claim 1, characterized in that: The strip window has inwardly rolled edges with a semi-circular cross-section, and a gap is formed between the upper and lower rolled edges to allow the conductive post to pass through.

4. The teaching electrical visualization demonstration device according to claim 1, characterized in that: The conductive pillars include insulating outer shells in four colors: red, yellow, blue, and black.

5. The teaching electrical visualization demonstration device according to claim 4, characterized in that: The conductive post is threadedly connected to the terminal block, and the bottom of the conductive post is provided with an elastic conductor that contacts the internal conductor of the terminal block.

6. The teaching electrical visualization demonstration device according to claim 1, characterized in that: The substrate is also fixed with wire grooves, which are arranged longitudinally and laterally on both sides of the electrical components, and the flexible wires are stored in the wire grooves.

7. The teaching electrical visualization demonstration device according to claim 1, characterized in that: It also includes a motor module, which includes a shock-absorbing base and a motor body. The motor body is fixedly mounted on the shock-absorbing base, and the surface of the motor body is provided with a wiring panel. The wiring panel is provided with a socket for matching the connecting wires, and the output shaft of the motor body is isolated by a safety net.

8. The teaching electrical visualization demonstration device according to claim 1, characterized in that: The lower end of the cabinet is integrally connected to a horizontal worktable, which is perpendicular to the cabinet. Drawers for placing items are provided below the worktable.

9. The teaching electrical visualization demonstration device according to claim 1, characterized in that: The cabinet also contains a separate inverter electrical box, which contains an inverter and a driver. The upper panel of the inverter electrical box is inclined between the cabinet and the control panel. The upper panel of the inverter electrical box has an operation window that exposes the inverter's operation panel. The upper panel of the inverter electrical box also has conductive sockets for leading out the various terminals of the inverter.

10. The teaching electrical visualization demonstration device according to claim 1, characterized in that: The top of the cabinet is equipped with a roller blind assembly for covering one side of the transparent cabinet door. The roller blind assembly includes a retractable roller blind located on the upper edge of the cabinet. An operating rod for pulling the roller blind open is located in front of the retractable roller blind, and a hook for fixing the operating rod is located at the bottom of the cabinet.

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