Silica gel insulation voltage transformer

Abstract

The utility model relates to a voltage transformer technical field especially silica gel insulation voltage transformer, including voltage transformer body and its outgoing line, the outer wall of voltage transformer body is covered with two half side silica gel insulation cover, both sides of two half side silica gel insulation cover away from each other one side are equipped with fixed ring, this voltage transformer not only can through more anti -aging half side silica gel insulation cover to voltage transformer body and its outgoing line installed on insulation protection seal, and through with a whole silica gel cover is divided into two half side silica gel insulation cover, make when replacing dismounting need not to take down the outgoing line of connecting other components, namely keep the circuit unobstructed condition carries out silica gel cover replacement, and the replacement is more convenient and fast, and need not to take down the outgoing line effectively reduces the electric shock risk of dismounting and installation, uses more safely.

Description

Technical Field

[0001] This utility model relates to the field of voltage transformer technology, and in particular to a silicone-insulated voltage transformer. Background Technology

[0002] Existing outdoor voltage transformers are used in power systems and electrical equipment. In actual operation, their primary terminals are directly electrically connected to the high-voltage busbar, typically secured with lead cables and auxiliary connection lugs or bolts. The metal conductors at the connection point are directly exposed to the atmosphere. Long-term exposure to atmospheric conditions, rain, snow, and sandstorms can easily cause corrosion at the terminals, potentially leading to poor electrical contact or open circuits, affecting the safe operation of the power supply. An existing patent application (CN202011246086.8) describes an insulating protective silicone sleeve for voltage transformers, comprising a positioning sleeve, lead-out bushing I, a main sleeve, and lead-out bushing II. One end of the main sleeve is closed, while the other end is open… Its internal dimensions fit tightly to the transformer connection point, and it is installed using a nested design based on the tensile properties of silicone rubber, making installation convenient and quick. However, when replacement is required after long-term use, since the lead-out bushing is a single unit, the lead-out wires connecting to the voltage transformer body inside the lead-out bushing need to be removed during replacement. This is inconvenient and increases the difficulty of replacement and the possibility of electric shock. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies where the lead-out bushing is a single unit, requiring the removal of the lead-out wires connecting the voltage transformer body inside the bushing during replacement. This makes replacement inconvenient and increases the difficulty of replacement and the possibility of electric shock. Therefore, this invention proposes a silicone-insulated voltage transformer.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a silicone-insulated voltage transformer, including a voltage transformer body and leads thereon. The outer wall of the voltage transformer body is covered with two half-silicone insulating sleeves. Each half-silicone insulating sleeve has a fixing ring on the side away from each other. Several connecting rods are fixed at equal intervals on the rear end face of the front fixing ring. The rear end of each connecting rod is integrally formed with a snap-fit ​​block. The front end face of the rear fixing ring has a snap-fit ​​hole corresponding to the connecting rod and the snap-fit ​​block. The rear end of each connecting rod passes through the two half-silicone insulating sleeves and is inserted into the snap-fit ​​hole. The snap-fit ​​block is snapped into the snap-fit ​​hole. The tops of the two fixing rings are rotatably connected by a hinge. A semi-circular fixing ring that mates with the leads is integrally formed on each fixing ring.

[0006] Preferably, an anti-detachment rope is fixed inside the front fixing ring, and the anti-detachment rope passes through several connecting rods.

[0007] Preferably, the outer walls of the two clamping reinforcing ropes are bonded with a number of connecting plates, and the connecting plates are equidistantly arranged in the rear fixing ring, with each connecting plate being arranged on both sides of two adjacent snap-fit ​​holes.

[0008] Preferably, the lower ends of both fixing rings are integrally formed with push plates that facilitate pinching and separating the two to the sides.

[0009] Preferably, the outer walls of both retaining rings are coated with a corrosion-resistant coating.

[0010] Preferably, the two half-silicone insulating sleeves are produced by injection molding.

[0011] Preferably, the upper ends of the two half-silicone insulating sleeves are integrally formed and connected.

[0012] The beneficial effects of the silicone-insulated voltage transformer proposed in this utility model are as follows: This voltage transformer not only provides insulation protection and sealing for the voltage transformer body and the leads installed on it through a more aging-resistant half-silicone insulating sleeve, but also, by dividing a whole silicone sleeve into two half-silicone insulating sleeves, it is possible to replace or disassemble it without disconnecting the leads connected to other components. That is, the silicone sleeve can be replaced while maintaining the circuit, making replacement more convenient and quick. Furthermore, the fact that the leads do not need to be disconnected effectively reduces the risk of electric shock caused by disassembly and installation, making it safer to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a silicone-insulated voltage transformer proposed in this utility model;

[0014] Figure 2 This is an enlarged view of area A of a silicone-insulated voltage transformer proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of a silicone-insulated voltage transformer proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the bottom structure of a silicone-insulated voltage transformer proposed in this utility model;

[0017] Figure 5 This is a schematic diagram of the internal structure of a silicone-insulated voltage transformer proposed in this utility model.

[0018] In the diagram: 1. Half silicone insulating sleeve; 2. Fixing ring; 3. Lead wire; 4. Semi-circular fixing ring; 5. Hinge; 6. Snap-fit ​​block; 7. Clamping reinforcing rope; 8. Connecting rod; 9. Anti-detachment rope; 10. Corrosion-resistant coating; 11. Push plate; 12. Connecting plate; 13. Voltage transformer body. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1-5 A silicone-insulated voltage transformer includes a voltage transformer body 13 and lead wires 3 thereon. The outer wall of the voltage transformer body 13 is covered with two half-silicone insulating sleeves 1. Each half-silicone insulating sleeve 1 has a fixing ring 2 on the side away from each other. A plurality of connecting rods 8 are fixed at equal intervals on the rear end face of the front fixing ring 2. The rear end of the connecting rod 8 is integrally formed with a snap-fit ​​block 6. The front end face of the rear fixing ring 2 has a snap-fit ​​hole corresponding to the connecting rod 8 and the snap-fit ​​block 6. The rear end of the connecting rod 8 passes through the two half-silicone insulating sleeves 1 and is inserted into the snap-fit ​​hole. The snap-fit ​​block 6 is snap-fitted in the snap-fit ​​hole. The tops of the two fixing rings 2 are rotatably connected by a hinge 5. A semi-circular fixing ring 4 that cooperates with the lead wire 3 is integrally formed on the fixing ring 2.

[0021] An anti-slip rope 9 is fixed inside the front fixing ring 2, and the anti-slip rope 9 passes through several connecting rods 8.

[0022] Several connecting plates 12 are bonded to the outer walls of the two clamping reinforcing ropes 12, and the connecting plates 12 are equidistantly arranged in the rear fixing ring 2. Each connecting plate 12 is arranged on both sides of two adjacent snap-fit ​​holes.

[0023] The lower ends of the two fixing rings 2 are integrally formed with push plates 11 that facilitate pinching and separating the two to the sides.

[0024] The outer walls of both retaining rings 2 are coated with a corrosion-resistant coating 10.

[0025] The two half-silicone insulating sleeves 1 are produced by injection molding.

[0026] The upper ends of the two half-silicone insulating sleeves 1 are integrally molded and connected.

[0027] Working principle: When the voltage transformer body 13 needs to be repaired or the aging half silicone insulating sleeve 1 needs to be replaced after long-term use, the push plate 11 is pushed open from the bottom to both sides, so that several locking blocks 6 gradually disengage from the locking holes, thereby removing two half silicone insulating sleeves 1. Two new half silicone insulating sleeves 1 are wrapped around the voltage transformer body 13 from both sides. Two fixing rings 2 are clamped on both sides of the raised skirt of the two new half silicone insulating sleeves 1. The two fixing rings 2 are squeezed to make the locking blocks 6 pass through the two new half silicone insulating sleeves 1 and insert into the locking holes, thus completing the fixed installation.

[0028] This voltage transformer not only provides insulation and protection for the voltage transformer body 13 and its installed lead wires 3 through a more anti-aging half-silicone insulating sleeve 1, but also divides a whole silicone sleeve into two half-silicone insulating sleeves 1, so that the lead wires 3 connected to other components do not need to be disconnected during replacement and disassembly. That is, the silicone sleeve can be replaced while keeping the circuit unobstructed, making replacement more convenient and quick. Moreover, the fact that the lead wires 3 do not need to be removed effectively reduces the risk of electric shock caused by disassembly and installation, making it safer to use.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A silicone-insulated voltage transformer, comprising a voltage transformer body (13) and leads (3) thereon, characterized in that, The outer wall of the voltage transformer body (13) is covered with two half-silicone insulating sleeves (1). Each half-silicone insulating sleeve (1) has a fixing ring (2) on the side away from each other. A number of connecting rods (8) are fixed at equal intervals on the rear end face of the front fixing ring (2). The rear end of the connecting rod (8) is integrally formed with a snap-fit ​​block (6). The front end face of the rear fixing ring (2) is provided with a snap-fit ​​hole corresponding to the connecting rod (8) and the snap-fit ​​block (6). The rear end of the connecting rod (8) passes through the two half-silicone insulating sleeves (1) and is inserted into the snap-fit ​​hole. The snap-fit ​​block (6) is snap-fitted in the snap-fit ​​hole. The tops of the two fixing rings (2) are rotatably connected by a hinge (5). A semi-circular fixing ring (4) that cooperates with the lead wire (3) is integrally formed on the fixing ring (2).

2. The silicone-insulated voltage transformer according to claim 1, characterized in that, The front fixing ring (2) is fixed with an anti-detachment rope (9), and the anti-detachment rope (9) passes through several connecting rods (8).

3. A silicone-insulated voltage transformer according to claim 1, characterized in that, It also includes clamping reinforcing ropes, and several connecting plates (12) are bonded to the outer walls of the two clamping reinforcing ropes (7). The connecting plates (12) are equidistantly arranged in the rear fixing ring (2), and each of the connecting plates (12) is arranged on both sides of two adjacent snap-fit ​​holes.

4. A silicone-insulated voltage transformer according to claim 1, characterized in that, The lower ends of the two fixing rings (2) are integrally formed with push plates (11) that facilitate pinching and separating the two to the sides.

5. A silicone-insulated voltage transformer according to claim 1, characterized in that, The outer walls of both retaining rings (2) are coated with a corrosion-resistant coating (10).

6. A silicone-insulated voltage transformer according to claim 1, characterized in that, The two half-silicone insulating sleeves (1) are produced by injection molding.

7. A silicone-insulated voltage transformer according to claim 1, characterized in that, The upper ends of the two half-silicone insulating sleeves (1) are integrally formed and connected.

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