Current transformer binding post protection device

Abstract

The utility model discloses a current transformer binding post protection device, and particularly relates to the technical field of current transformers, the current transformer binding post protection device comprises a current transformer, one end of each of two sides of the current transformer is symmetrically and fixedly connected with an installation lug plate, and the surface of each installation lug plate is provided with an installation groove. Two first connecting plates are arranged on the side, close to the mounting lug plate, of the current transformer, a connecting column is inserted in the middle of each first connecting plate, and a protective cover is arranged on the side, close to the first connecting plates, of the current transformer. According to the utility model, the first connecting plate is firstly covered and protected by the protective cover, so that the first connecting plate, the connecting column and the connected wire are protected, external dust is prevented from being attached to the connecting column and the first connecting plate to influence the electric connection effect, and the connected wire is limited by the clamping groove and the limiting groove, so that the electric connection effect is improved. The nut is rotated to drive the pressing plate so that the pressing pad extrudes and fixes the wire, the electric connection effect is prevented from being affected by external pulling of the wire, and the connection strength is improved.

Description

Technical Field

[0001] This utility model relates to the field of current transformer technology, and more specifically, to a current transformer terminal protection device. Background Technology

[0002] A current transformer is an instrument that converts a large primary current into a small secondary current based on the principle of electromagnetic induction. It mainly consists of a closed iron core and windings. When current flows through the primary winding, an alternating magnetic flux is generated in the iron core. This magnetic flux induces an electromotive force in the secondary winding, thereby generating a secondary current.

[0003] Traditional current transformers are installed by directly connecting the wires to the terminals, leaving the terminals exposed and susceptible to dust, moisture, metal shavings, and other impurities that can affect the connection. Furthermore, when the connecting wires are pulled, they can easily detach from the terminals, thus affecting the performance. Therefore, a current transformer terminal protection device is proposed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a current transformer terminal protection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a current transformer terminal protection device, comprising a current transformer, wherein mounting lugs are symmetrically fixedly connected to one end of both sides of the current transformer, and mounting grooves are formed on the surface of the mounting lugs. Two first connecting plates are provided on the side of the current transformer near the mounting lugs, and a connecting post is inserted in the middle of the first connecting plate. A protective cover is provided on the side of the current transformer near the first connecting plates, and a threaded hole is formed on the side of the current transformer near the protective cover. Through the cooperation of the mounting lugs and the mounting grooves, the current transformer can be easily installed vertically in a preset position, and the wire to be tested can be installed and used by passing through the through hole in the middle of the current transformer. Through the cooperation of the first connecting plates and the connecting post, it is convenient to connect the external wire to the positive and negative poles of the current transformer. The protective cover covers and protects the first connecting plates, the connecting post, and the connected wires.

[0006] A second connecting plate is fixedly connected to one end of the protective cover. A fixing screw is inserted into the middle of the second connecting plate. The fixing screw corresponds to the threaded hole. A rotating screw head is fixedly connected to one end of the fixing screw. By rotating one end of the fixing screw into the threaded hole, the second connecting plate can be fixed to the top of the current transformer, thereby fixing the movable end of the protective cover and achieving the protective effect on the first connecting plate and the connecting column.

[0007] A fixing plate is fixedly connected to one side of the protective cover. A limiting groove is formed on the surface of the fixing plate, and a slot is formed at the bottom of the fixing plate. A threaded post is fixedly connected to one side of the fixing plate. A pressure plate and a nut are fitted in the middle of the threaded post. A pressure pad is fixedly connected to one side of the pressure plate. Through the cooperation of the limiting groove and the slot, the wire connected to the first connecting plate can be positioned and placed. By rotating the nut, the pressure plate is pressed, and the pressure pad is pressed against the wire located inside the limiting groove to achieve fixation and prevent the connection effect from being affected by external pulling of the wire.

[0008] Preferably, the cross-sectional shape of the mounting ear plate is set to "L" shape, and one side of the mounting groove is connected to the outside. The mounting ear plate and the mounting groove cooperate to facilitate installation and fixation.

[0009] Preferably, the protective cover corresponds to the first connecting plate, and the opposite sides of the two protective covers are rotatably connected to the wall of the current transformer. The protective cover can conveniently cover and protect the first connecting plate, improve the protection effect, and prevent external dust from adhering to the connecting column and the first connecting plate, thus affecting the electrical connection effect.

[0010] Preferably, one end of the fixing screw extends into the interior of the threaded hole and is threadedly connected to the inner cavity of the threaded hole. The screw is threadedly connected to the wall of the second connecting plate. By rotating the screw head, the fixing screw is controlled to insert into the interior of the threaded hole, which facilitates fixing the second connecting plate to one side of the current transformer and facilitates fixing the protective cover.

[0011] Preferably, the slot and the limiting slot are connected, and the slot corresponds to the middle of the first connecting plate. The limiting slot and the slot can limit the wires connected to the positive and negative poles of the current transformer.

[0012] Preferably, the pressure pad corresponds to the limiting groove, and the nut is located on the side of the threaded post away from the fixing plate. By rotating the nut, the pressure plate is squeezed, so that the pressure pad squeezes and fixes the wire inside the limiting groove, thus preventing external pulling of the wire from affecting the connection effect.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model firstly covers and protects the first connecting plate with a protective cover, thereby protecting the first connecting plate, the connecting post, and the connected wires, preventing external dust from adhering to the connecting post and the first connecting plate and affecting the electrical connection effect. The connecting wires are limited by the slot and the limiting slot. By rotating the nut, the pressure plate is driven to squeeze and fix the pressure pad to the wires, preventing the wires from being pulled by the outside and affecting the electrical connection effect, thus improving the connection strength.

[0015] 2. This utility model also facilitates the installation of the current transformer in a preset position by using the mounting ear plate and mounting groove. By rotating the rotating screw head, the second connecting plate is inserted into the threaded hole to fix one end of the protective cover, which can improve the fixing strength of the protective cover. The connecting wire is limited by the set slot and limiting slot, which improves the stability of the connecting wire. This makes it convenient to squeeze and fix the connecting wire, making it convenient to use.

[0016] In summary, through the interaction of the above-mentioned multiple functions, the first connecting plate and connecting post on the current transformer can be covered and protected to prevent external dust from adhering to the connecting post and the first connecting plate, thus affecting the electrical connection effect. In addition, the connecting wires can be squeezed and fixed to prevent external pulling of the wires from affecting the electrical connection effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the opening structure of the protective cover of this utility model.

[0019] Figure 3 This is a schematic diagram showing the disassembled structure of the protective cover and current transformer of this utility model.

[0020] Figure 4 This is a schematic diagram showing the disassembled structure of the protective cover, pressure plate, and fixing screw of this utility model.

[0021] The attached diagram is labeled as follows: 1. Current transformer; 2. Mounting lug; 3. Mounting slot; 4. First connecting plate; 5. Connecting post; 6. Protective cover; 7. Second connecting plate; 8. Fixing screw; 9. Rotating screw head; 10. Threaded hole; 11. Fixing plate; 12. Limiting slot; 13. Slot; 14. Threaded post; 15. Pressure plate; 16. Pressure pad; 17. Nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] As attached Figure 1-4The diagram shows a current transformer terminal protection device, including a current transformer 1. Mounting lugs 2 are symmetrically fixed to one end of both sides of the current transformer 1. Mounting lugs 2 have mounting grooves 3 on their surfaces. The mounting lugs 2 and mounting grooves 3 cooperate to facilitate the vertical installation of the current transformer 1 at a preset position, allowing the wire to be tested to pass through the through hole in the middle of the current transformer 1 for installation and use. Two first connecting plates 4 are provided on the side of the current transformer 1 near the mounting lugs 2. Connecting posts 5 are inserted into the middle of the first connecting plates 4. The cooperation between the first connecting plates 4 and the connecting posts 5 facilitates the connection of external wires to the positive and negative terminals of the current transformer 1. A protective cover 6 is provided on the side of the current transformer 1 near the first connecting plates 4, covering and protecting the first connecting plates 4, connecting posts 5, and connected wires. A threaded hole 10 is provided on the side of the current transformer 1 near the protective cover 6.

[0024] A second connecting plate 7 is fixedly connected to one end of the protective cover 6. A fixing screw 8 is inserted into the middle of the second connecting plate 7, and the fixing screw 8 corresponds to the threaded hole 10. A rotating screw head 9 is fixedly connected to one end of the fixing screw 8. A fixing plate 11 is fixedly connected to one side of the protective cover 6. A limit groove 12 is formed on the surface of the fixing plate 11, and a slot 13 is formed at the bottom of the fixing plate 11. A threaded post 14 is fixedly connected to one side of the fixing plate 11. A pressure plate 15 and a nut 17 are fitted in the middle of the threaded post 14. A pressure pad 16 is fixedly connected to one side of the pressure plate 15. By rotating one end of the fixing screw 8 into the threaded hole 10, the second connecting plate 7 can be fixed on the top of the current transformer 1, thereby fixing the movable end of the protective cover 6 and achieving the protective effect on the first connecting plate 4 and the connecting post 5. Through the cooperation of the limiting groove 12 and the slot 13, the wire connected to the first connecting plate 4 can be positioned and placed. By rotating the nut 17 to press the pressure plate 15, the pressure pad 16 presses the wire located inside the limiting groove 12 to achieve fixation and prevent the connection effect from being affected by external pulling of the wire.

[0025] As attached Figure 1-3As shown, the cross-sectional shape of the mounting ear plate 2 is set to "L" shape. One side of the mounting groove 3 is connected to the outside. The protective cover 6 corresponds to the first connecting plate 4. The opposite sides of the two protective covers 6 are rotatably connected to the wall of the current transformer 1. One end of the fixing screw 8 extends into the inside of the threaded hole 10 and is threadedly connected to the inner cavity of the threaded hole 10. The screw 8 is threadedly connected to the wall of the second connecting plate 7. The mounting ear plate 2 and the mounting groove 3 cooperate to facilitate installation and fixation. The protective cover 6 can cover and protect the first connecting plate 4, improve the protection effect, and prevent external dust from adhering to the connecting post 5 and the first connecting plate 4, affecting the electrical connection effect. By rotating the rotating screw head 9, the fixing screw 8 is inserted into the inside of the threaded hole 10, which can easily fix the second connecting plate 7 to one side of the current transformer 1 and facilitate the fixation of the protective cover 6.

[0026] As attached Figure 2 , 4 As shown, the slot 13 and the limiting slot 12 are connected. The slot 13 corresponds to the middle of the first connecting plate 4. The pressure pad 16 corresponds to the limiting slot 12. The nut 17 is set on the side of the threaded post 14 away from the fixing plate 11. The limiting slot 12 and the slot 13 can limit the wires connected to the positive and negative poles of the current transformer 1. By rotating the nut 17, the pressure plate 15 is pressed, so that the pressure pad 16 presses and fixes the wires inside the limiting slot 12, so as to avoid the external pulling of the wires affecting the connection effect.

[0027] The working principle of this utility model is as follows: When in use, rotate the rotating screw head 9 to control one end of the fixing screw 8 to move out from the inside of the threaded hole 10, and then rotate the protective cover 6 to expose the first connecting plate 4, so that the wire can be connected to the first connecting plate 4 and the connecting post 5.

[0028] Then rotate the protective cover 6 to cover and protect the first connecting plate 4, and place the wire inside the slot 13. Then rotate the fixing screw 8 to extend one end of the fixing screw 8 into the threaded hole 10 to fix the second connecting plate 7 and the protective cover 6.

[0029] The wire is bent and placed inside the limiting groove 12. Then, the pressure pad 16 is pressed against the wire, and the nut 17 is rotated to press against the pressure plate 15, thereby pressing and fixing the wire inside the limiting groove 12 and improving the fixing effect.

[0030] 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 current transformer terminal protection device, comprising a current transformer (1), characterized in that: The current transformer (1) is symmetrically fixedly connected to one end of each side with mounting lugs (2). The mounting lugs (2) have mounting grooves (3) on their surfaces. The current transformer (1) has two first connecting plates (4) on one side near the mounting lugs (2). A connecting post (5) is inserted in the middle of the first connecting plate (4). The current transformer (1) has a protective cover (6) on one side near the first connecting plate (4). The current transformer (1) has a threaded hole (10) on one side near the protective cover (6). One end of the protective cover (6) is fixedly connected to a second connecting plate (7), and a fixing screw (8) is inserted in the middle of the second connecting plate (7). The fixing screw (8) corresponds to the threaded hole (10), and a rotating screw head (9) is fixedly connected to one end of the fixing screw (8). A fixing plate (11) is fixedly connected to one side of the protective cover (6). A limiting groove (12) is opened on the surface of the fixing plate (11). A slot (13) is opened at the bottom of the fixing plate (11). A threaded post (14) is fixedly connected to one side of the fixing plate (11). A pressure plate (15) and a nut (17) are sleeved in the middle of the threaded post (14). A pressure pad (16) is fixedly connected to one side of the pressure plate (15).

2. The current transformer terminal protection device according to claim 1, characterized in that: The cross-sectional shape of the mounting ear plate (2) is set to "L" shape, and one side of the mounting groove (3) is connected to the outside.

3. The current transformer terminal protection device according to claim 1, characterized in that: The protective cover (6) corresponds to the first connecting plate (4), and the opposite sides of the two protective covers (6) are rotatably connected to the wall of the current transformer (1).

4. A current transformer terminal protection device according to claim 1, characterized in that: One end of the fixing screw (8) extends into the interior of the threaded hole (10) and is threadedly connected to the inner cavity of the threaded hole (10). The screw (8) is threadedly connected to the wall of the second connecting plate (7).

5. A current transformer terminal protection device according to claim 1, characterized in that: The slot (13) and the limiting slot (12) are connected, and the slot (13) corresponds to the middle part of the first connecting plate (4).

6. A current transformer terminal protection device according to claim 1, characterized in that: The pressure pad (16) corresponds to the limiting groove (12), and the nut (17) is located on the side of the threaded post (14) away from the fixing plate (11).

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