Novel capacitive silicone rubber sleeve

Abstract

The utility model discloses a novel capacitive silicone rubber bushing, which comprises a bushing main body, and the bushing main body is provided with a voltage-sharing cap B. The capacitive silicone rubber bushing is good in hydrophobicity, excellent in antifouling performance, small in size, light in weight, not easy to damage, impact-resistant, convenient to transport and good in bending strength, and umbrella skirts are elastic. The product does not need to be cleaned manually, the maintenance cost is reduced, the appearance is attractive, the structure is reasonable, the installation is convenient and rapid, the limitation that the original resin sleeve is only limited to indoor use is broken through, the electric field distribution is effectively improved, partial discharge is reduced, the insulation is enhanced, the loss is reduced, and the safety and reliability are improved; the resin is effectively protected from external influence, the service life of the product is prolonged, the limitation of indoor use is broken through, the production efficiency is high, the period is short, the whole composite insulating sleeve is simple in structure and convenient to operate, and the use effect is better than that of a traditional mode.

Description

Technical Field

[0001] The utility model belongs to the technical field related to a new type of capacitive silicone rubber bushing, and particularly relates to a new type of capacitive silicone rubber bushing. Background Technique

[0002] A bushing is a support device for transformer protection. The use of electricity is everywhere in life, and the safety issue of electricity use has been paid more and more attention by people. The use of transformers is increasing. When a transformer is in use, a bushing is needed for protection. With the continuous development of technology, people's requirements for the manufacturing process of composite insulation bushings are also getting higher and higher.

[0003] The existing composite insulation bushings have certain drawbacks when in use. At present, most of the bushings on transformers in the market are porcelain bushings, which are large in volume and heavy in weight, and are prone to being knocked and damaged during transportation, which is not conducive to people's use and brings certain adverse effects to the use process. Therefore, we propose a new type of capacitive silicone rubber bushing to solve the problems currently faced. Content of the Utility Model

[0004] The purpose of the utility model is to provide a new type of capacitive silicone rubber bushing to solve the certain drawbacks existing in the use of the existing composite insulation bushings in the above background technique. At present, most of the bushings on transformers in the market are porcelain bushings, which are large in volume and heavy in weight, and are prone to being knocked and damaged during transportation, which is not conducive to people's use and brings certain adverse effects to the use process. Therefore, we propose a new type of capacitive silicone rubber bushing to solve the problems currently faced.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A new type of capacitive silicone rubber bushing, including a bushing main body. At the upper end position of the bushing main body, a grading cap B is installed. At the upper end position of the bushing main body, a thick nut is provided. At the upper end position of the thick nut, a flat washer is installed. At the upper end position of the bushing main body, a thin nut is provided. At the lower end position of the bushing main body, a grading cap A is provided. At the lower end position of the bushing main body, a conducting rod is provided. On the outer wall position of the bushing main body, epoxy resin is provided. On the outer wall position of the epoxy resin, silicone rubber A is provided. At the lower position of the outer wall of the bushing main body, a pressing plate is provided. At the lower end position of the pressing plate, a box cover is provided. Inside the pressing plate, a rectangular sealing ring is installed. Inside the pressing plate, a T-shaped rubber ring is sleeved. On the inner wall position of the T-shaped rubber ring, an arc-shaped protrusion mechanism is provided. Inside the T-shaped rubber ring, a bolt A is inserted and installed. On the rear position of the outer wall of the bushing main body, a grounding wire is provided. The grounding wire is connected to a shielding net. On the right side position of the outer wall of the bushing main body, a bolt B is provided.

[0006] Preferably, the left and right of the magnetic field can be balanced by the grading caps A and B installed at the upper and lower ends of the casing body.

[0007] Preferably, the grounding wire can be directly connected to the transformer casing, and the grounding wire can be connected to the capacitance detection device to detect the casing.

[0008] Preferably, an aluminum flange pressing disc is installed at the outer side of the silicone rubber A to fix the casing body.

[0009] Preferably, the inner surface of the conducting rod is knurled to increase the bonding property with the epoxy resin.

[0010] Preferably, the grading cap A is sleeved on the outer wall of the conducting rod.

[0011] Preferably, the T-shaped rubber ring is inserted into the threaded holes at the left and right sides of the upper end of the pressing plate.

[0012] Preferably, the bolt A is inserted into the T-shaped rubber ring and connected to the threaded hole in the pressing plate, and the arc-shaped convex mechanism is closely attached to the outer wall of the bolt A.

[0013] Compared with the prior art, the present utility model provides a novel capacitive silicone rubber casing, which has the following beneficial effects:

[0014] 1. This capacitive silicone rubber casing has good hydrophobicity, excellent anti-pollution performance, small size and light weight, elastic umbrella skirts, not easy to break, impact resistance, convenient transportation, good anti-bending strength, no need for manual cleaning of the product, reducing maintenance costs, beautiful appearance, reasonable structure, convenient and fast installation, safe and reliable in use, breaking the limitation that the original resin casing can only be used indoors, the product can be used outdoors, the middle part of the conducting rod is completely wrapped with resin, good insulation performance, internally installed with insulation shielding and grounding devices, effectively improving the electric field distribution, reducing partial discharge, strengthening insulation, reducing losses, and improving the safety and reliability. The resin insulation main body of the casing is wrapped with a layer of silicone rubber, effectively protecting the resin from the outside world, increasing the product life, and at the same time breaking the limitation of indoor use, high production efficiency, short cycle, the whole composite insulation casing has a simple structure, convenient operation, and better use effect than the traditional method.

[0015] 2. When the bolt A is connected to the threaded hole in the pressing plate, the T-shaped rubber ring is inserted into the inner position of the threaded hole, and a plurality of arc-shaped convex mechanisms are distributed in the inner position of the T-shaped rubber ring. When the bolt A is inserted into the T-shaped rubber ring, it is closely fitted with the arc-shaped convex mechanism. When the bolt A is completely tightened, the firmness of the bolt A can be increased through the T-shaped rubber ring and the arc-shaped convex mechanism, preventing loosening when vibration occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of a novel capacitive silicone rubber bushing structure of the present utility model.

[0017] Figure 2 Schematic diagram of the cross-sectional structure of the T-shaped rubber ring of a novel capacitive silicone rubber bushing of the present utility model.

[0018] Figure 3 Schematic diagram of the shielding net structure of a novel capacitive silicone rubber bushing of the present utility model.

[0019] In the figure: 1. Conductive rod; 2. Equalizing cap A; 3. Box cover; 4. Rectangular sealing ring; 5. Bolt A; 6. Pressure plate; 7. Bolt B; 8. Grounding wire; 9. Epoxy resin; 10. Silicone rubber A; 11. Equalizing cap B; 12. Thick nut; 13. Flat washer; 14. Thin nut; 15. T-shaped rubber ring; 16. Arc-shaped convex mechanism; 17. Bushing main body; 18. Shielding net. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] The utility model provides a novel capacitive silicone rubber bushing as shown in Figures 1-3 which includes a bushing main body 17. An equalizing cap B 11 is installed at the upper end position of the bushing main body 17. A thick nut 12 is provided at the upper end position of the bushing main body 17. A flat washer 13 is installed at the upper end position of the thick nut 12. A thin nut 14 is provided at the upper end position of the bushing main body 17. An equalizing cap A 2 is provided at the lower end position of the bushing main body 17. A conductive rod 1 is provided at the lower end position of the bushing main body 17. Epoxy resin 9 is provided on the outer wall of the bushing main body 17. Silicone rubber A 10 is provided on the outer wall of the epoxy resin 9. A pressure plate 6 is provided at the lower position of the outer wall of the bushing main body 17. A box cover 3 is provided at the lower end position of the pressure plate 6. A rectangular sealing ring 4 is installed inside the pressure plate 6. A T-shaped rubber ring 15 is sleeved inside the pressure plate 6. An arc-shaped convex mechanism 16 is provided on the inner wall of the T-shaped rubber ring 15. A bolt A 5 is inserted and installed inside the T-shaped rubber ring 15. A grounding wire 8 is provided at the rear position of the outer wall of the bushing main body 17. The grounding wire 8 is connected to the shielding net 18. A bolt B 7 is provided at the right position of the outer wall of the bushing main body 17.

[0022] The new capacitive silicone rubber bushing has good hydrophobicity, excellent anti-pollution performance, small size, light weight, elastic umbrella skirts, not easy to break, impact resistance, convenient transportation, good anti-bending strength, no need for manual cleaning of the product, reducing maintenance costs, beautiful appearance, reasonable structure, convenient and fast installation, safe and reliable in use, breaking the limitation that the original resin bushing was only suitable for indoor use.

[0023] The shielding net 18 is connected to the grounding wire 8. The grounding wire 8 can be directly connected to the transformer box for grounding, or can be connected to the capacitance detection device to detect the capacitance of the bushing. The structure of the shielding net 18 can effectively balance the magnetic field.

[0024] Such as Figure 1 And Figure 2 As shown in

[0025] When the bolt A5 is connected to the threaded hole in the pressing plate 6, the T-shaped rubber ring 15 is inserted into the internal position of the threaded hole. There are multiple arc-shaped convex mechanisms 16 distributed inside the T-shaped rubber ring 15. When the bolt A5 is inserted into the T-shaped rubber ring 15, it fits tightly with the arc-shaped convex mechanism 16. When the bolt A5 is fully tightened, through the T-shaped rubber ring 15 and the arc-shaped convex mechanism 16, the firmness of the bolt A5 can be increased, preventing loosening during vibration.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of capacitive silicone rubber sleeve, characterized in that: The invention comprises a sleeve body (17), wherein a voltage equalizing cap B (11) is installed at the upper end of the sleeve body (17), a thick nut (12) is provided at the upper end of the sleeve body (17), a flat washer (13) is installed at the upper end of the thick nut (12), a thin nut (14) is provided at the upper end of the sleeve body (17), a voltage equalizing cap A (2) is provided at the lower end of the sleeve body (17), a conductive rod (1) is provided at the lower end of the sleeve body (17), an epoxy resin (9) is provided at the outer wall of the sleeve body (17), a silicone rubber A (10) is provided at the outer wall of the epoxy resin (9), and the sleeve body (17) is provided with a plurality of conductive rods (11). ) is provided with a pressure plate (6) at a lower position on the outer wall of the sleeve body (17), a box cover (3) is provided at the lower end position of the pressure plate (6), a rectangular sealing ring (4) is installed at the inner position of the pressure plate (6), a T-shaped rubber ring (15) is sleeved at the inner position of the pressure plate (6), an arc-shaped protrusion mechanism (16) is provided at the inner wall position of the T-shaped rubber ring (15), a bolt A (5) is inserted and installed at the inner position of the T-shaped rubber ring (15), a grounding wire (8) is provided at the rear position on the outer wall of the sleeve body (17), the grounding wire (8) is connected to the shielding net (18), and a bolt B (7) is provided at the right position on the outer wall of the sleeve body (17).

2. The novel capacitive silicone rubber sleeve according to claim 1, characterized in that: The sleeve body (17) can balance the left and right magnetic fields by means of the equalizing caps A (2) and B (11) installed at the upper and lower ends.

3. The novel capacitive silicone rubber sleeve according to claim 1, characterized in that: The grounding wire (8) can be directly connected to the transformer box, and the grounding wire (8) can be connected to a detection bushing of a capacitance detection device.

4. The novel capacitive silicone rubber sleeve according to claim 1, characterized in that: An aluminum flange pressure plate is installed at the outer side of the silicone rubber A (10) to fix the sleeve body (17).

5. The novel capacitive silicone rubber sleeve according to claim 1 is characterized in that: The inner knurling treatment of the conductive rod (1) increases the bonding performance with the epoxy resin (9).

6. The novel capacitive silicone rubber sleeve according to claim 1, characterized in that: The voltage equalizing cap A (2) is sleeved on the outer wall of the conductive rod (1).

7. The novel capacitive silicone rubber sleeve according to claim 1, characterized in that: The T-shaped rubber ring (15) is inserted into the threaded holes located at the left and right sides of the upper end of the pressing plate (6).

8. The novel capacitive silicone rubber sleeve according to claim 7, characterized in that: The bolt A (5) is inserted into the T-shaped rubber ring (15) and connected to the threaded hole in the pressure plate (6), and the arc-shaped protrusion mechanism (16) is tightly attached to the outer wall of the bolt A (5).

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