Mutual inductor protection device

Abstract

The utility model relates to the technical field of mutual inductor protection, and discloses a mutual inductor protection device which comprises a bottom shell, a protection mechanism is fixedly installed on the inner wall of the bottom shell, the protection mechanism comprises a first annular inner shell, a fixing end cover, a rubber sleeve, a fixing bolt and a second annular inner shell, and the first annular inner shell is fixedly installed on the inner wall of the bottom shell. One end of the first annular inner shell is fixedly connected with a fixing end cover, when the device is used, through the arranged protection mechanism, the first annular inner shell and the fixing end cover are fixed to the inner wall of the bottom shell in a penetrating mode through fixing bolts, and the wire set ring is embedded into a rubber sleeve on the inner wall of the first annular inner shell; and the second annular inner shell is attached to the first annular inner shell, the wire set ring is wrapped in the rubber sleeve for protection, through the operation, the situation that internal parts of the mutual inductor are damaged due to impact of external force can be avoided, the use safety of the internal parts of the mutual inductor is protected, the service life of equipment is prolonged, and the storage environment of the internal parts is optimized.

Description

A transformer protection device Technical Field

[0001] This utility model relates to the technical field of transformer protection, specifically to a transformer protection device. Background Technology

[0002] Instrument transformers, a general term encompassing both current transformers and voltage transformers, play a crucial role in electrical systems. Their core function is to convert high voltage to low voltage and large current to small current, thereby simplifying measurement tasks in electrical systems. In addition, instrument transformers can effectively isolate high-voltage systems, providing a solid barrier to ensure the safety of personnel and equipment. In complex power supply lines, the range of current and voltage can be extremely wide. To ensure safe and convenient measurement, we need to convert these high voltages and large currents into more uniform current or voltage standards. This is where instrument transformers excel. Through current and voltage transformation and electrical isolation, they provide the necessary support for instrument measurement. In fact, the low-voltage equipment we encounter in daily life usually uses current transformers.

[0003] However, it still has some drawbacks. For example, when the current transformer is used, it is wrapped in a simple shell and lacks internal protective measures to protect the internal coil. When the transformer is impacted, the shell on the surface of the transformer is easily dented and broken, and the internal coil is easily damaged, which reduces the service life of the internal coil and increases its maintenance cost.

[0004] To address the aforementioned problems, this application proposes a current transformer protection device. Summary of the Invention

[0005] The purpose of this invention is to provide a current transformer protection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a transformer protection device, comprising a bottom shell, a protective mechanism fixedly installed on the inner wall of the bottom shell, the protective mechanism comprising a first annular inner shell, a fixed end cap, a rubber sleeve, a fixing bolt, and a second annular inner shell, the first annular inner shell being fixedly installed on the inner wall of the bottom shell, a fixed end cap being fixedly connected to one end of the first annular inner shell, a rubber sleeve being fixedly sleeved on the inner wall of the first annular inner shell, a fixing bolt being threadedly connected to the inner wall of the first annular inner shell, and a second annular inner shell being movably connected to the other end of the first annular inner shell.

[0007] Preferably, a mounting plate is fixedly connected to the lower outer surface of the bottom shell, a limiting ring is fixedly connected to the inner wall of the bottom shell, and a wire coil is movably sleeved on the outer wall of the limiting ring.

[0008] Preferably, a sealing shell is fixedly installed on one outer surface of the bottom shell, a wiring bolt is threadedly connected to one outer surface of the sealing shell, and a blocking device is fixedly installed on one outer surface of the sealing shell.

[0009] Preferably, the barrier device includes a fixed hinge, a three-dimensional frame, a wire inlet slot, a first magnet plate, a second magnet plate, and transparent glass, and a fixed hinge is fixedly installed on one outer surface of the sealing shell.

[0010] Preferably, a three-dimensional frame is fixedly connected to the outer wall of the fixed hinge, and a wire inlet slot is opened on the lower inner surface of the three-dimensional frame, and a first magnet plate is fixedly connected to the rear outer surface of the three-dimensional frame.

[0011] Preferably, a second magnet plate is fixedly connected to the outer rear end of the first magnet plate, and a transparent glass plate is fixedly installed on the outer upper end of the three-dimensional frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model, through its protective mechanism, fixes the first annular inner shell and the fixed end cover to the inner wall of the bottom shell using fixing bolts. By embedding the coil inside the rubber sleeve of the inner wall of the first annular inner shell, and using a second annular inner shell to fit against the first annular inner shell, the coil is wrapped in the rubber sleeve for protection. This operation can prevent the transformer from being damaged by external impacts, protect the safety of the transformer's internal components, improve the service life of the equipment, and optimize the storage environment of the internal components.

[0014] This utility model uses a barrier device to install a three-dimensional frame on the front end of a sealed shell using a fixed hinge. A first magnet plate and a second magnet plate are used to fix the three-dimensional frame to the front end of the sealed shell. The three-dimensional frame and transparent glass enclose the wiring bolts, preventing them from being exposed to the outside. This operation can prevent external dust from adhering to its surface and avoid excessive dust accumulation that may affect its aging and short circuits, thus optimizing its installation and storage environment. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of a current transformer protection device according to this utility model;

[0016] Figure 2 is an internal view of a current transformer protection device according to this utility model;

[0017] Figure 3 is a schematic diagram of the overall structure of the protection mechanism in a current transformer protection device of this utility model.

[0018] Figure 4 is a schematic diagram of the overall structure of the barrier device in the current transformer protection device of this utility model.

[0019] In the diagram: 1. Bottom shell; 2. Sealing shell; 3. Mounting plate; 4. Barrier device; 5. Wiring bolt; 6. Protective mechanism; 7. Limiting ring; 8. Wire coil; 9. No. 1 annular inner shell; 10. Fixed end cap; 11. Rubber sleeve; 12. Fixing bolt; 13. No. 2 annular inner shell; 14. Fixed hinge; 15. Three-dimensional frame; 16. Wire inlet slot; 17. No. 1 magnet plate; 18. No. 2 magnet plate; 19. Transparent glass. Detailed Implementation

[0020] 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.

[0021] Please refer to Figures 1-4. This utility model provides a technical solution: a current transformer protection device, including a bottom shell 1. A protective mechanism 6 is fixedly installed on the inner wall of the bottom shell 1. The protective mechanism 6 includes a first annular inner shell 9, a fixed end cap 10, a rubber sleeve 11, a fixing bolt 12, and a second annular inner shell 13. The first annular inner shell 9 is fixedly installed on the inner wall of the bottom shell 1. The fixed end cap 10 is fixedly connected to one end of the first annular inner shell 9. The rubber sleeve 11 is fixedly sleeved on the inner wall of the first annular inner shell 9. The fixing bolt 12 is threadedly connected to the inner wall of the first annular inner shell 9. The second annular inner shell 13 is movably connected to the other end of the first annular inner shell 9. The rubber sleeve 11 can wrap and protect the internal parts, reduce the impact of vibration caused by impact on the current transformer, and improve its service life.

[0022] As shown in Figure 3, the fixing bolt 12 is embedded in the rubber sleeve 11, and the end of the fixing bolt 12 is in contact with the rubber sleeve 11.

[0023] In this embodiment, as shown in Figures 1-2, an mounting plate 3 is fixedly connected to the lower outer surface of the bottom shell 1, a limiting ring 7 is fixedly connected to the inner wall of the bottom shell 1, a wire assembly ring 8 is movably sleeved on the outer wall of the limiting ring 7, a sealing shell 2 is fixedly installed on one side of the outer surface of the bottom shell 1, a wiring bolt 5 is threadedly connected to one side of the outer surface of the sealing shell 2, and a blocking device 4 is fixedly installed on one side of the outer surface of the sealing shell 2. The wiring bolt 5 can be used to quickly install and fix the wiring, simplifying the installation process.

[0024] In this embodiment, as shown in Figure 4, the barrier device 4 includes a fixed hinge 14, a three-dimensional frame 15, a wire inlet slot 16, a first magnet plate 17, a second magnet plate 18, and a transparent glass 19. The fixed hinge 14 is fixedly installed on one outer surface of the sealing shell 2. The three-dimensional frame 15 is fixedly connected to the outer wall of the fixed hinge 14. The wire inlet slot 16 is opened on the lower inner surface of the three-dimensional frame 15. The first magnet plate 17 is fixedly connected to the rear outer surface of the three-dimensional frame 15. The second magnet plate 18 is fixedly connected to the rear outer surface of the first magnet plate 17. The transparent glass 19 is fixedly installed on the upper outer surface of the three-dimensional frame 15. The transparent glass 19 can isolate external dust and prevent excessive accumulation of external dust on its surface.

[0025] Working principle:

[0026] Before use, a current transformer protection device is first installed by the operator by opening the sealing shell 2 of the current transformer and fixing the coil 8 to the outer wall of the limiting ring 7. The coil 8 is then protected by the first annular inner shell 9 and rubber sleeve 11 on the inner wall of the bottom shell 1, improving the storage safety of the coil 8 and preventing damage to the internal coil 8 from external impacts. This enhances the internal protection of the current transformer. After installation, the sealing shell 2 is fixedly sealed to the bottom shell 1. The mounting plate 3 is then installed on the docking equipment to assist in monitoring current and voltage. The first annular inner shell 9 and the fixed end cover 10 are fixed to the inner wall of the bottom shell 1 using fixing bolts 12 through the protective mechanism 6. The coil 8 is then embedded in the rubber sleeve 11 on the inner wall of the first annular inner shell 9, and the second annular inner shell 7 is used to further protect it. The inner shell 13 fits snugly against the first annular inner shell 9, and the coil 8 is wrapped in a rubber sleeve 11 for protection. This operation can prevent the transformer from being damaged by external impacts, protect the safety of the internal components, improve the service life of the equipment, and optimize the storage environment of the internal components. The three-dimensional frame 15 is installed at the front end of the sealed shell 2 using the barrier device 4 and the fixing hinge 14. The first magnet plate 17 and the second magnet plate 18 are used to fix the three-dimensional frame 15 at the front end of the sealed shell 2. The three-dimensional frame 15 and the transparent glass 19 enclose the wiring bolt 5, preventing the wiring bolt 5 from being exposed to the outside. This operation can isolate the surface of the external dust and prevent excessive dust accumulation from affecting its aging and short circuit, thus optimizing its installation and storage environment.

[0027] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A current transformer protection device, comprising a base shell (1), characterized in that: The inner wall of the bottom shell (1) is fixedly installed with a protective mechanism (6). The protective mechanism (6) includes a first annular inner shell (9), a fixed end cap (10), a rubber sleeve (11), a fixing bolt (12), and a second annular inner shell (13). The first annular inner shell (9) is fixedly installed on the inner wall of the bottom shell (1). One end of the first annular inner shell (9) is fixedly connected to the fixed end cap (10). The inner wall of the first annular inner shell (9) is fixedly sleeved with a rubber sleeve (11). The inner wall of the first annular inner shell (9) is threadedly connected with a fixing bolt (12). The other end of the first annular inner shell (9) is movably connected to the second annular inner shell (13).

2. The transformer protection device according to claim 1, characterized in that: The lower outer surface of the bottom shell (1) is fixedly connected to an mounting plate (3), and the inner wall of the bottom shell (1) is fixedly connected to a limiting ring (7). The outer wall of the limiting ring (7) is movably sleeved with a wire coil (8).

3. The transformer protection device according to claim 2, characterized in that: A sealing shell (2) is fixedly installed on one side of the outer surface of the bottom shell (1), and a wiring bolt (5) is threadedly connected to one side of the outer surface of the sealing shell (2). A blocking device (4) is fixedly installed on one side of the outer surface of the sealing shell (2).

4. A transformer protection device according to claim 3, characterized in that: The barrier device (4) includes a fixed hinge (14), a three-dimensional frame (15), a wire inlet slot (16), a first magnet plate (17), a second magnet plate (18), and a transparent glass (19). The fixed hinge (14) is fixedly installed on one outer surface of the sealing shell (2). The three-dimensional frame (15) is fixedly connected to the outer wall of the fixed hinge (14). The wire inlet slot (16) is opened on the lower inner surface of the three-dimensional frame (15). The first magnet plate (17) is fixedly connected to the rear outer surface of the three-dimensional frame (15). The second magnet plate (18) is fixedly connected to the rear outer surface of the first magnet plate (17). The transparent glass (19) is fixedly installed on the upper outer surface of the three-dimensional frame (15).

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