Photoelectric isolation conversion box for electric power switching signal

Abstract

The application provides an optoelectronic isolation conversion box of electric switch quantity signal, comprising a conversion box body, a cover plate is fixed on the upper end of the conversion box body, two symmetrically arranged mounting strips are fixed on the side of the conversion box body, mounting holes are formed in the mounting strips, wire holes are formed in the two ends of the conversion box body, a master switch, a display screen and an indicator lamp are mounted on the end of the conversion box body, and a fixing structure for reinforcing the electric wire is arranged at the position where the wire hole is formed in the conversion box body. The application solves the problem that the electric wire is displaced by external force when the conversion box is connected with the external electric wire, and the contact between the electric wire and the terminal is poor or even falls off, thereby affecting the normal work of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of power accessories technology, and more specifically, to an opto-isolation conversion box for power switching signals. Background Technology

[0002] In modern power systems, the stable transmission and safe conversion of power signals are crucial for ensuring the reliable operation of power equipment. From generation and transmission to distribution, various power signals (such as switch status signals and fault alarm signals) need to be transmitted between different devices. However, these signals are susceptible to electromagnetic interference and voltage fluctuations during transmission. Therefore, specialized conversion devices are required to ensure the accuracy and security of the signals. The opto-isolated conversion box for power switch signals is one such important device.

[0003] The opto-isolation converter box for power switching signals is a signal conversion device based on opto-isolation technology. Its core function is to achieve electrical isolation between input and output signals, effectively blocking harmful factors such as ground interference and surge voltage between different circuits. At the same time, it converts switching signals (such as dry contact and wet contact signals) in the power system into a standard signal form that is easy for subsequent equipment to process, providing a stable and reliable signal source for power automation control systems, data acquisition systems, etc.

[0004] In practical use, the connection between the external wire and the opto-isolation conversion box for power switching signals is crucial. Operators must insert the wire into the corresponding terminal block of the conversion box according to the wiring specifications, and then tighten the fixing screws on the terminal block to achieve a secure connection. However, during this process, due to the inherent rigidity of the wire, the axial or radial force generated when tightening the screws, as well as slight vibrations in the external environment, can cause the wire to shift under external force. This can lead to poor contact or even detachment between the wire and the terminal block, affecting the normal operation of the equipment. Utility Model Content

[0005] The purpose of this utility model is to address the problem that when the conversion box is connected to the external power line, the power line is displaced by external force, which leads to poor contact or even detachment between the power line and the terminal block, affecting the normal operation of the equipment.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: An opto-isolated converter box for power switching signals is used to improve the above-mentioned problems.

[0007] The application is as follows: The opto-isolation conversion box for power switching signals includes a conversion box body, a cover plate fixed to the upper end of the conversion box body, two symmetrically arranged mounting strips fixed to the side of the conversion box body, mounting holes on the mounting strips, wire through holes at both ends of the conversion box body, a main switch, a display screen, and an indicator light installed at the end of the conversion box body, and a fixing structure for reinforcing the wires is provided at the location of the wire through holes in the conversion box body.

[0008] As a preferred technical solution of this application, the fixing structure includes a fixing seat fixed to the end of the conversion box body. The position of the fixing seat corresponds to the wire hole. A fixing groove is opened inside the fixing seat and is connected to the wire hole. Two symmetrically arranged fixing blocks are installed at the end of the fixing seat away from the conversion box body. The two ends of the fixing blocks are rough surfaces and arc-shaped grooves are opened on the fixing blocks.

[0009] As a preferred technical solution of this application, the fixed base has two symmetrically arranged sliding grooves at the end away from the conversion box body. A support column is fixed inside the sliding groove, and a sliding block and a fixed spring are slidably sleeved on the support column. The two ends of the fixed spring are fixedly connected to the fixed base and the sliding block, respectively, and the sliding block is fixedly connected to the fixed block.

[0010] As a preferred technical solution of this application, an installation tube is fixed to the upper end of the mounting base, a fixing tube is fixed inside the installation tube, the fixing tube is connected to the fixing groove, a fixing post is threaded inside the fixing tube, and a cross groove is opened at the upper end of the fixing post.

[0011] As a preferred technical solution of this application, a protective pad is fixed at the lower end of the fixing column, and the protective pad is a flexible rubber pad.

[0012] As a preferred technical solution of this application, a protective cover is provided at the end of the conversion box body. The protective cover is slidably sleeved on the fixed base. A connecting post is fixed at the end of the conversion box body. A connecting hole is opened on the side of the protective cover that contacts the conversion box body. The connecting post is slidably inserted into the connecting hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: When connecting the wire to the conversion box body, pull the fixing block, causing it to move the sliding block on the support column. As the sliding block moves, it compresses the fixing spring, allowing the wire to pass through the fixing groove and the wire threading groove, and finally into the conversion box body. After that, release the fixing block, and the two fixing blocks will return to their original positions under the action of the fixing spring. The fixing spring helps the two fixing blocks clamp the wire, achieving pre-fixation of the wire. This effectively reduces the possibility of loosening or falling off when connecting the wire to the conversion box body. Attached Figure Description

[0014] Figure 1A schematic diagram of the overall structure of the opto-isolated conversion box for the power switching signals provided in this application; Figure 2 A disassembly diagram of the protective cover and the main body of the opto-isolated conversion box for the power switching signal provided in this application; Figure 3 The opto-isolated converter box for the power switching signals provided in this application Figure 2 A magnified structural diagram of A in the middle; Figure 4 A cross-sectional view of the mounting base for the opto-isolated converter box for power switching signals provided in this application.

[0015] The image shows: 1. Converter box body; 11. Cover plate; 12. Mounting strip; 13. Main switch; 14. Display screen; 15. Indicator light; 2. Fixing structure; 21. Fixing base; 22. Fixing groove; 23. Fixing block; 24. Arc groove; 25. Sliding groove; 26. Support column; 27. Sliding block; 28. Fixing spring; 3. Mounting tube; 31. Fixing tube; 32. Fixing column; 33. Cross groove; 34. Protective pad; 4. Protective cover; 41. Connecting column. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0017] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, unless otherwise specified, the embodiments, features, and technical solutions in the embodiments of this utility model can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] like Figure 1-4As shown, this embodiment proposes an opto-isolated conversion box for power switching signals, including a conversion box body 1. A cover plate 11 is fixed to the upper end of the conversion box body 1. Two symmetrically arranged mounting strips 12 are fixed to the side of the conversion box body 1. Mounting holes are opened on the mounting strips 12. Wire holes are opened at both ends of the conversion box body 1. A main switch 13, a display screen 14, and an indicator light 15 are installed at the end of the conversion box body 1. A fixing structure 2 for reinforcing the wires is provided at the position where the wire holes are opened on the conversion box body 1.

[0020] The fixing structure 2 includes a fixing seat 21 fixed to the end of the conversion box body 1. The position of the fixing seat 21 corresponds to the wire hole. The fixing seat 21 has a fixing groove 22 inside, which is connected to the wire hole. Two symmetrically arranged fixing blocks 23 are installed at the end of the fixing seat 21 away from the conversion box body 1. The two ends of the fixing blocks 23 are rough surfaces, and arc-shaped grooves 24 are provided on the fixing blocks 23.

[0021] Two symmetrically arranged sliding grooves 25 are provided at the end of the fixed base 21 away from the conversion box body 1. A support column 26 is fixed inside the sliding groove 25. A sliding block 27 and a fixed spring 28 are slidably sleeved on the support column 26. The two ends of the fixed spring 28 are fixedly connected to the fixed base 21 and the sliding block 27 respectively. The sliding block 27 is fixedly connected to the fixed block 23.

[0022] When connecting the wire to the conversion box body 1, pull the fixing block 23, causing the fixing block 23 to drive the sliding block 27 to move on the support column 26. When the sliding block 27 moves, it squeezes the fixing spring 28, and then sends the wire into the fixing groove 22, then through the fixing groove 22 into the wire threading groove, and finally into the conversion box body 1. After that, release the fixing block 23, and under the action of the fixing spring 28, the two fixing blocks 23 will reset. With the help of the fixing spring 28, the two fixing blocks 23 clamp the wire, realizing the pre-fixation of the wire, which can effectively reduce the loosening or falling off of the wire when connecting it to the conversion box body 1.

[0023] A mounting tube 3 is fixed to the upper end of the mounting base 21. A fixing tube 31 is fixed inside the mounting tube 3. The fixing tube 31 is connected to the fixing groove 22. A fixing post 32 is threaded inside the fixing tube 31. A cross groove 33 is opened at the upper end of the fixing post 32. After the wire is connected to the conversion box, the fixing post 32 is tightened with a screwdriver so that the fixing post 32 can squeeze and fix the wire, thereby further improving the fixing effect between the wire and the conversion box and reducing the phenomenon of the fixing post 32 falling off.

[0024] A protective pad 34, which is a flexible rubber pad, is fixed to the lower end of the fixing post 32. The protective pad 34 can play a protective role and reduce the wear and tear on the wires during fixing.

[0025] A protective cover 4 is provided at the end of the converter box body 1. The protective cover 4 is slidably sleeved on the fixing base 21. A connecting post 41 is fixed at the end of the converter box body 1. A connecting hole is opened on the side of the protective cover 4 that contacts the converter box body 1, and the connecting post 41 is slidably inserted into the connecting hole. The protective cover 4 is used to protect the fixing groove 22 on the fixing base 21. When not in use, it can reduce the problem of external dust entering the fixing groove 22 and then entering the cable tray through the fixing groove 22, which would affect subsequent use.

[0026] When this application is used: when connecting the wire to the conversion box body 1, pull the fixing block 23, so that the fixing block 23 drives the sliding block 27 to move on the support column 26. When the sliding block 27 moves, it squeezes the fixing spring 28, and then sends the wire into the fixing groove 22, then through the fixing groove 22 into the wire threading groove, and finally into the conversion box body 1. After that, release the fixing block 23, and under the action of the fixing spring 28, the two fixing blocks 23 are reset. With the help of the fixing spring 28, the two fixing blocks 23 clamp the wire, realizing the pre-fixation of the wire, which can effectively reduce the loosening or falling off of the wire when connecting it to the conversion box body 1. The protective cover 4 is used to protect the fixing groove 22 on the fixing base 21. When not in use, it can reduce the problem of external dust entering the fixing groove 22 and then entering the wire passage through the fixing groove 22, which would affect subsequent use.

[0027] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. An opto-isolated converter for power switching signals, comprising a converter body (1), characterized in that, The upper end of the conversion box body (1) is fixed with a cover plate (11). Two symmetrically arranged mounting strips (12) are fixed on the side of the conversion box body (1). Mounting holes are opened on the mounting strips (12). Wire holes are opened at both ends of the conversion box body (1). A main switch (13), a display screen (14), and an indicator light (15) are installed at the end of the conversion box body (1). A fixing structure (2) for reinforcing the wires is set at the position where the wire holes are opened on the conversion box body (1).

2. The opto-isolated converter box for power switching signals according to claim 1, characterized in that, The fixing structure (2) includes a fixing seat (21) fixed at the end of the conversion box body (1). The position of the fixing seat (21) corresponds to the wire hole. The fixing seat (21) has a fixing groove (22) inside. The fixing groove (22) is connected to the wire hole. Two symmetrically arranged fixing blocks (23) are installed at the end of the fixing seat (21) away from the conversion box body (1). The two ends of the fixing blocks (23) are rough surfaces. The fixing blocks (23) have arc grooves (24).

3. The opto-isolated converter box for power switching signals according to claim 2, characterized in that, The fixed base (21) has two symmetrically arranged sliding grooves (25) at one end away from the conversion box body (1). A support column (26) is fixed inside the sliding groove (25). A sliding block (27) and a fixed spring (28) are slidably sleeved on the support column (26). The two ends of the fixed spring (28) are fixedly connected to the fixed base (21) and the sliding block (27) respectively. The sliding block (27) is fixedly connected to the fixed block (23).

4. The opto-isolated converter box for power switching signals according to claim 2, characterized in that, The mounting base (21) is fixed with an installation tube (3) at its upper end. The mounting tube (3) is fixed with a fixing tube (31) inside. The fixing tube (31) is connected to the fixing groove (22). The fixing tube (31) is threaded with a fixing post (32) inside. The upper end of the fixing post (32) is provided with a cross groove (33).

5. The opto-isolated converter box for power switching signals according to claim 4, characterized in that, The lower end of the fixed column (32) is fixed with a protective pad (34), which is a flexible rubber pad.

6. The opto-isolated converter box for power switching signals according to claim 2, characterized in that, The conversion box body (1) is provided with a protective cover (4) at its end. The protective cover (4) is slidably sleeved on the fixed base (21). The conversion box body (1) is fixed with a connecting post (41). The protective cover (4) has a connecting hole on the side that contacts the conversion box body (1). The connecting post (41) is slidably inserted into the connecting hole.

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