Low-voltage transformer outgoing line positioning device

Abstract

The utility model discloses a low-voltage mutual inductor outgoing line positioning device, which belongs to the technical field of low-voltage mutual inductors and comprises a low-voltage mutual inductor body, a connecting structure is arranged on the low-voltage mutual inductor body and comprises a circular ring attached to the position of a wiring terminal of the low-voltage mutual inductor body, a connecting line is mounted on the outer wall of the circular ring, and the connecting line is connected with the low-voltage mutual inductor body. The top wall of the circular ring is connected with the outer wall of the wiring screw; a clamping structure is arranged on the outer wall of the low-voltage transformer body; and a moving structure is arranged on the clamping structure. By arranging a clamping structure, after a connecting wire penetrates through an arc-shaped block, a threaded rod is screwed, the threaded rod drives a rubber pad to be clamped with the connecting wire, and the connecting wire close to the position of a low-voltage transformer body is fixed to a certain degree in advance, so that a stress point generated in the pulling process is changed; the risks of falling off and breaking of the connection position are effectively avoided, and the problem of short circuit is effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of low-voltage instrument transformer technology, specifically, it relates to a low-voltage instrument transformer output positioning device. Background Technology

[0002] Low-voltage instrument transformers are important devices used to measure, protect, and control voltage in power systems. They provide corresponding low-voltage output signals by stepping down the high-voltage signal to a suitable measurement range. Low-voltage instrument transformers mainly consist of an iron core, a primary winding, and a secondary winding. The iron core is usually made of silicon steel sheets, which have good permeability and low hysteresis characteristics. The primary winding is wound on the high-voltage side and transmits the high-voltage signal through current. The secondary winding is wound on the low-voltage side and outputs the corresponding low-voltage signal.

[0003] When a low-voltage transformer is in operation, the connecting wires are connected to the terminals on the low-voltage transformer using wiring screws. However, when the equipment where the low-voltage transformer is located vibrates or moves, the connecting wires may be pulled due to the relative displacement with the equipment. This may cause the connecting wires to come loose or break at the connection point with the wiring screws, resulting in a short circuit.

[0004] To address the aforementioned issues, this application proposes a low-voltage transformer outgoing line positioning device. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a low-voltage transformer output positioning device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A low-voltage transformer output positioning device includes a low-voltage transformer body, a connecting structure provided on the low-voltage transformer body, the connecting structure including a ring that fits against the terminal of the low-voltage transformer body, a connecting wire installed on the outer wall of the ring, and the top wall of the ring connected to the outer wall of the terminal screw.

[0008] The outer wall of the low-voltage transformer body is provided with a snap-fit ​​structure.

[0009] The snap-fit ​​structure is provided with a movable structure;

[0010] The snap-fit ​​structure includes a fixing plate installed on the outer wall of the low-voltage transformer body. The top wall of the fixing plate is provided with an arc-shaped block. A threaded rod is threaded through the inner wall of the arc-shaped block. A connecting block is rotatably connected to the end of the threaded rod away from the arc-shaped block. A sliding rod is installed on the inner wall of the arc-shaped block. The outer wall of the sliding rod away from the arc-shaped block is slidably connected to the inner wall of the connecting block. A snap-fit ​​block is installed on the side of the connecting block away from the threaded rod. The side of the snap-fit ​​block away from the connecting block is in contact with the outer wall of the connecting wire.

[0011] The connecting line is curved at the position between the ring and the snap block. By setting the connecting line to be curved, it plays a certain buffering role when the connecting line is pulled.

[0012] A rubber pad is installed on the side of the snap-fit ​​block away from the connecting block. The side of the rubber pad away from the snap-fit ​​block is in close contact with the outer wall of the connecting wire. By setting the rubber pad, wear between the snap-fit ​​block and the connecting wire can be effectively avoided.

[0013] The movable structure includes a groove formed on a fixed plate, and a slider is slidably connected to the groove formed on the fixed plate. The top wall of the slider is fixedly connected to the bottom wall of the arc-shaped block. By setting the slider, the position can be adjusted according to the connecting line.

[0014] A spring is installed on the groove opened in the fixed plate. The end of the spring away from the fixed plate is fixedly connected to the outer wall of the slider. By setting the spring, the fixing effect of the connecting line is effectively improved.

[0015] A limiting rod is installed on the groove opened in the fixed plate. The outer wall of the limiting rod is slidably connected to the inner wall of the slider. By setting the limiting rod, the movement effect of the slider is effectively improved.

[0016] In summary, the technical effects and advantages of this utility model are as follows: This low-voltage transformer output positioning device...

[0017] 1. By setting up a snap-fit ​​structure, after the connecting wire passes through the inside of the arc-shaped block, the threaded rod is turned. The threaded rod drives the rubber pad to snap into the connecting wire. By fixing the connecting wire near the low-voltage transformer body in advance, the stress point during pulling is changed, which effectively avoids the risk of the connection position falling off and breaking, and effectively avoids the problem of short circuit.

[0018] 2. By setting up a movable structure, the position of the arc block is adjusted by moving the slider and causing the spring to contract. Then, the snap-fit ​​block is connected to the connecting line, which effectively improves the connection effect between the snap-fit ​​block and the connecting line. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the ring and connecting line structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the internal structure of the connecting block of this utility model;

[0022] Figure 4 This is a schematic diagram of the movable structure of this utility model.

[0023] In the picture:

[0024] 1. Low-voltage instrument transformer body;

[0025] 2. Connection structure; 201. Connecting wire; 202. Circular ring; 203. Wiring screw;

[0026] 3. Snap-fit ​​structure; 301. Fixing plate; 302. Arc-shaped block; 303. Threaded rod; 304. Connecting block; 305. Snap-fit ​​block; 306. Rubber pad; 307. Slide rod;

[0027] 4. Moving structure; 401. Slide groove; 402. Slider; 403. Limiting rod; 404. Spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figure 1-3 A low-voltage transformer output positioning device includes a low-voltage transformer body 1, a connection structure 2 on the low-voltage transformer body 1, and a ring 202 attached to the terminal of the low-voltage transformer body 1. A connecting wire 201 is installed on the outer wall of the ring 202, and the top wall of the ring 202 is connected to the outer wall of the wiring screw 203. The ring 202 is placed at the terminal of the low-voltage transformer body 1, and the wiring screw 203 is then turned to achieve an electrical connection between the low-voltage transformer body 1 and the ring 202.

[0030] The outer wall of the low-voltage transformer body 1 is provided with a snap-fit ​​structure 3. The snap-fit ​​structure 3 includes a fixing plate 301 installed on the outer wall of the low-voltage transformer body 1. The top wall of the fixing plate 301 is provided with an arc-shaped block 302. The connecting line 201 is located inside the arc-shaped block 302. A threaded rod 303 is threaded through the inner wall of the arc-shaped block 302. A connecting block 304 is rotatably connected to the end of the threaded rod 303 away from the arc-shaped block 302. A sliding rod 307 is installed on the inner wall of the arc-shaped block 302. There are two threaded rods 303, which are symmetrically distributed on both sides of the arc-shaped block 302. Each threaded rod 303 has a connecting block 304. In addition, each connecting block 304 has two sliding rods 307, which are symmetrically distributed vertically.

[0031] The outer wall of the slide rod 307 away from the arc block 302 is slidably connected to the inner wall of the connecting block 304. A snap-fit ​​block 305 is installed on the side of the connecting block 304 away from the threaded rod 303. The side of the snap-fit ​​block 305 away from the connecting block 304 is in contact with the outer wall of the connecting line 201. When the threaded rod 303 is turned, the threaded rod 303 drives the connecting block 304 and the snap-fit ​​block 305 to move toward the position of the connecting line 201. The connecting block 304 slides on the surface of the slide rod 307 to prevent the snap-fit ​​block 305 from shifting.

[0032] The connecting wire 201 is bent between the ring 202 and the snap-fit ​​block 305. When the connecting wire 201 is pulled, the bent part of the connecting wire 201 will generate a certain resistance when passing the snap-fit ​​block 305, so as to reduce the problem of the ring 202 and the wiring screw 203 falling off due to pulling.

[0033] A rubber pad 306 is installed on the side of the snap-fit ​​block 305 away from the connecting block 304. The side of the rubber pad 306 away from the snap-fit ​​block 305 is in close contact with the outer wall of the connecting line 201. The rubber pad 306 not only improves the connection effect between the snap-fit ​​block 305 and the connecting line 201, but also avoids wear on the connecting line 201 caused by the snap-fit ​​block 305.

[0034] Reference Figure 2 and Figure 4 The snap-fit ​​structure 3 is provided with a movable structure 4, which includes a groove 401 opened on the fixed plate 301. A slider 402 is slidably connected to the groove 401 opened on the fixed plate 301. The top wall of the slider 402 is fixedly connected to the bottom wall of the arc block 302. The position of the fixed connecting line 201 can be adjusted by the slider 402.

[0035] A spring 404 is installed on the groove 401 opened in the fixed plate 301. The end of the spring 404 away from the fixed plate 301 is fixedly connected to the outer wall of the slider 402. The spring 404 is located at the center of the slider 402. The elastic force of the spring 404 is used to abut against the slider 402 to improve the fixing effect of the snap-fit ​​structure 3.

[0036] A limiting rod 403 is installed on the slide groove 401 of the fixed plate 301. The outer wall of the limiting rod 403 is slidably connected to the inner wall of the slider 402. There are two limiting rods 403, which are symmetrically distributed around the slider 402. During the movement of the slider 402, they not only provide stability during movement, but also prevent the slider 402 from deviating.

[0037] Working principle:

[0038] After passing the connecting wire 201 through the inside of the arc-shaped block 302, place the ring 202 at the terminal of the low-voltage transformer body 1, and then tighten the terminal screw 203 to achieve an electrical connection between the low-voltage transformer body 1 and the ring 202. Tighten the threaded rod 303, which drives the connecting block 304, the snap-fit ​​block 305, and the rubber pad 306 to move toward the position of the connecting wire 201. While moving, the connecting block 304 slides on the surface of the slide rod 307, so that the rubber pad 306 is in close contact with the outer wall of the connecting wire 201. By fixing the connecting wire 201 near the position of the low-voltage transformer body 1 in advance, the stress point during pulling is changed, effectively avoiding the risk of the connection position falling off and breaking, and effectively avoiding the problem of short circuit.

[0039] Adjust the position of the arc block 302 according to the connecting line 201. Move the slider 402 through the arc block 302 and drive the spring 404 to contract. The inner wall of the slider 402 slides against the outer wall of the limit rod 403. After adjusting the position of the arc block 302, connect the snap-fit ​​block 305 to the connecting line 201 to effectively improve the connection effect between the snap-fit ​​block 305 and the connecting line 201.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-voltage transformer outgoing line positioning device, comprising a low-voltage transformer body (1), characterized in that, The low-voltage transformer body (1) is provided with a connection structure (2), the connection structure (2) includes a ring (202) that fits into the terminal position of the low-voltage transformer body (1), the outer wall of the ring (202) is equipped with a connecting wire (201), and the top wall of the ring (202) is connected to the outer wall of the wiring screw (203). The outer wall of the low-voltage transformer body (1) is provided with a snap-fit ​​structure (3). The snap-fit ​​structure (3) is provided with a movable structure (4); The snap-fit ​​structure (3) includes a fixing plate (301) installed on the outer wall of the low-voltage transformer body (1). The top wall of the fixing plate (301) is provided with an arc-shaped block (302). The inner wall of the arc-shaped block (302) is threadedly connected to a threaded rod (303). The end of the threaded rod (303) away from the arc-shaped block (302) is rotatably connected to a connecting block (304). The inner wall of the arc-shaped block (302) is installed with a sliding rod (307). The outer wall of the sliding rod (307) away from the arc-shaped block (302) is slidably connected to the inner wall of the connecting block (304). The side of the connecting block (304) away from the threaded rod (303) is installed with a snap-fit ​​block (305). The side of the snap-fit ​​block (305) away from the connecting block (304) is in contact with the outer wall of the connecting line (201).

2. The low-voltage transformer output positioning device according to claim 1, characterized in that, The connecting line (201) is curved at the position between the ring (202) and the snap block (305).

3. The low-voltage transformer output positioning device according to claim 1, characterized in that, A rubber pad (306) is installed on the side of the snap-fit ​​block (305) away from the connecting block (304), and the side of the rubber pad (306) away from the snap-fit ​​block (305) is in close contact with the outer wall of the connecting line (201).

4. The low-voltage transformer output positioning device according to claim 1, characterized in that, The movable structure (4) includes a groove (401) opened on a fixed plate (301), and a slider (402) is slidably connected on the groove (401) opened on the fixed plate (301). The top wall of the slider (402) is fixedly connected to the bottom wall of the arc block (302).

5. A low-voltage transformer output positioning device according to claim 4, characterized in that, A spring (404) is installed on the slide groove (401) opened in the fixed plate (301), and the end of the spring (404) away from the fixed plate (301) is fixedly connected to the outer wall of the slider (402).

6. A low-voltage transformer output positioning device according to claim 4, characterized in that, A limiting rod (403) is installed on the slide groove (401) of the fixed plate (301), and the outer wall of the limiting rod (403) is slidably connected to the inner wall of the slider (402).

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