Epoxy and silicone rubber composite transformer outgoing line sleeve

Abstract

The utility model relates to the technical field of outgoing line bushings, in particular to an epoxy and silicone rubber composite type transformer outgoing line bushing. In order to solve the problems that the adaptability of an existing epoxy silicone rubber resin sleeve is reduced due to the fact that the existing epoxy silicone rubber resin sleeve is inconvenient to protect outgoing lines of different sizes, and subsequent maintenance and replacement difficulty is increased due to the fact that replacement and installation can be completed only by purchasing sleeves of the same size, the following technical scheme is provided: the epoxy silicone rubber resin sleeve comprises an epoxy resin protection layer and outgoing lines, an outer surface protection layer for protecting the outer surface of the epoxy resin protection layer is arranged on the wall body of the outer surface of the epoxy resin protection layer, and an inner surface protection layer filled in the epoxy resin protection layer is arranged on the wall body of the inner surface of the epoxy resin protection layer. According to the utility model, the purpose of protecting outgoing lines with different diameters is achieved while the outgoing lines are protected, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of outlet bushings, in particular to an epoxy and silicone rubber composite transformer outlet bushing. Background Art

[0002] The composite transformer outlet refers to a way for the high-voltage and low-voltage ends of the transformer to enter and exit the power system through outlet bushings or cables. Outlet bushings are usually used for insulation and protection. Nowadays, some outlet bushings are made of epoxy resin. Epoxy silicone rubber resin bushings have excellent arc resistance and insulation properties, which can effectively protect wires and cables from mechanical damage and moisture erosion. At the same time, epoxy materials also have good chemical corrosion resistance and can resist the erosion of some chemicals.

[0003] However, the existing epoxy silicone rubber resin bushing is not convenient for protecting the outgoing wires of different sizes, resulting in a decrease in its adaptability, and it is necessary to purchase bushings of the same size to complete replacement and installation, thereby increasing the difficulty of subsequent maintenance and replacement. In view of this, we propose an epoxy and silicone rubber composite transformer outgoing wire bushing. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes an epoxy and silicone rubber composite transformer outlet bushing.

[0005] The technical solution of the utility model is as follows: an epoxy and silicone rubber composite transformer outlet bushing, comprising an epoxy resin protective layer and an outlet line, wherein an outer surface protective layer for protecting the outer surface of the epoxy resin protective layer is arranged on the outer surface wall of the epoxy resin protective layer, an inner surface protective layer for filling the inside of the epoxy resin protective layer is arranged on the inner surface wall of the epoxy resin protective layer, a limited arc groove is provided at the bottom wall of the inner surface protective layer, and a hot melt adhesive strip adapted to the limited arc groove is provided at the top wall of the outer surface protective layer.

[0006] Preferably, the outer surface protective layer comprises a wear-resistant and anti-skid epoxy layer, the bottom wall of which is connected to a first heat-insulating protective layer, and the bottom wall of which is provided with an anti-cold and anti-freeze layer.

[0007] Preferably, the inner surface protective layer comprises a second heat-insulating protective layer, and an insulating protective layer is connected to the top wall of the second heat-insulating protective layer.

[0008] Preferably, the antifreeze and cold-resistant layer and the insulating protective layer are respectively arranged at the top wall and the bottom wall of the epoxy resin protective layer, and the opposite surface walls of the antifreeze and cold-resistant layer and the insulating protective layer are respectively connected to the top wall and the bottom wall of the epoxy resin protective layer.

[0009] Preferably, a plurality of the limiting arc-shaped grooves are arranged in an array on the bottom wall of the second heat-insulating protective layer.

[0010] Preferably, a plurality of the hot melt adhesive strips are distributed in an array on the top wall of the wear-resistant and non-slip epoxy layer.

[0011] Preferably, the hot melt adhesive strip is matched with the limiting arc-shaped slot, and the length dimension of the bottom opening of the limiting arc-shaped slot is smaller than the length dimension of the hot melt adhesive strip.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The utility model wraps the epoxy resin protective layer, the outer surface protective layer and the inner surface protective layer on the outer surface wall of the outlet line, so that the inner surface protective layer fits with the outer surface of the outlet line, and under the cooperation of the epoxy resin protective layer and the outer surface protective layer, the purpose of protecting the outlet line is achieved. The staff can use the epoxy resin protective layer, the outer surface protective layer and the inner surface protective layer of appropriate length according to the diameter of the outlet line, and wrap the three on the outlet line, and soften the hot melt adhesive strip and clamp it in the limiting arc-shaped clamping groove. After the hot melt adhesive strip is cooled, the positioning of the epoxy resin protective layer, the outer surface protective layer and the inner surface protective layer is completed, and the protection of the outlet line is achieved, avoiding the problem of limited application range of conventional casings, and when cutting the epoxy resin protective layer, the outer surface protective layer and the inner surface protective layer, the adaptability of the outlet line protection can be controlled, which is conducive to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of an epoxy and silicone rubber composite transformer outlet bushing;

[0015] Figure 2 yes Figure 1 A schematic diagram of a front cross-sectional structure;

[0016] Figure 3 yes Figure 2 Schematic diagram of the partial structure after the middle wear-resistant and non-slip epoxy layer is spliced ​​with the second thermal insulation protective layer.

[0017] Figure numerals: 1. Epoxy resin protective layer; 2. Outer surface protective layer; 21. Wear-resistant and non-slip epoxy layer; 22. First heat insulation protective layer; 23. Cold and anti-freeze layer; 3. Inner surface protective layer; 31. Second heat insulation protective layer; 32. Insulation protective layer; 4. Limiting arc slot; 5. Hot melt adhesive strip. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Example

[0020] like Figure 1-3 As shown, the utility model proposes an epoxy and silicone rubber composite transformer outlet bushing, including an epoxy resin protective layer 1 and an outlet line, an outer surface protective layer 2 for protecting the outer surface of the epoxy resin protective layer 1 is arranged on the outer surface wall of the epoxy resin protective layer 1, and the outer surface protective layer 2 includes a wear-resistant and non-slip epoxy layer 21, and the wear-resistant and non-slip epoxy layer 21 is arranged above the top wall of the epoxy resin protective layer 1, which plays a wear-resistant role for the epoxy resin protective layer 1, and avoids the top of the epoxy resin protective layer 1 from being easily affected by wear, causing holes in the outlet line of the epoxy resin protective layer 1, and affecting the outlet line protection arranged on the inner surface of the epoxy resin protective layer 1; the first heat-insulating protective layer 22 is located at the wear-resistant and non-slip epoxy layer 21 At the bottom wall, it plays a role of heat insulation for the top wall of the epoxy resin protective layer 1, preventing external heat from directly contacting the epoxy resin protective layer 1, causing its temperature to be too high or contacting the epoxy resin protective layer 1 for a long time to cause it to soften, thereby reducing the protectiveness of the epoxy resin protective layer 1 to the output line; the cold and frost-proof layer 23 is arranged at the bottom wall of the first thermal insulation protective layer 22, and the bottom wall of the cold and frost-proof layer 23 is fixedly connected to the outer surface wall of the epoxy resin protective layer 1, which plays a role of cold and frost resistance for the outer surface wall of the epoxy resin protective layer 1, avoiding the epoxy resin protective layer 1 from solidifying in a cold environment, which is easy to cause the output line to crack, causing damage to the output line of the epoxy resin protective layer 1, affecting subsequent use.

[0021] Furthermore, an inner surface protective layer 3 filling the inside of the epoxy resin protective layer 1 is provided on the inner surface wall of the epoxy resin protective layer 1, and the inner surface protective layer 3 includes a second heat insulation protective layer 31, and the second heat insulation protective layer 31 is located below the epoxy resin protective layer 1, and the insulating protective layer 32 is arranged between the epoxy resin protective layer 1 and the second heat insulation protective layer 31, and the top wall of the insulating protective layer 32 is fixedly connected to the inner surface wall of the epoxy resin protective layer 1 to play an insulating role, thereby preventing the internal output wires from being affected by the external humid environment and preventing the output wires from being hindered; the top wall of the second heat insulation protective layer 31 is fixedly connected to the bottom wall of the insulating protective layer 32, and the second heat insulation protective layer 31 plays a heat-resistant role on the inner surface of the epoxy resin protective layer 1, thereby preventing the heat generated when the internal output wires of the epoxy resin protective layer 1 are working from damaging the epoxy resin protective layer 1, causing damage to the internal output wires of the epoxy resin protective layer 1, and affecting the protective effect of the epoxy resin protective layer 1 on the output wires.

[0022] Furthermore, a plurality of limiting arc-shaped slots 4 are respectively arranged on the bottom surface of the second heat-insulating protective layer 31, and a plurality of hot-melt adhesive strips 5 are fixedly installed on the top wall of the wear-resistant and non-slip epoxy layer 21. The length of the opening of the limiting arc-shaped slot 4 is smaller than the length of the hot-melt adhesive strip 5. When the outgoing line needs to be protected, the staff can cut the epoxy resin protective layer 1, the outer surface protective layer 2 and the inner surface protective layer 3 into appropriate lengths according to the diameter of the outgoing line, and wrap the epoxy resin protective layer 1 on the outer surface of the outgoing line, so that the inner surface protective layer 3 is located on the outer surface wall of the outgoing line, so as to protect the outgoing line, and the hot-melt adhesive strip 5 is clamped in the limiting arc-shaped slot 4, before the clamping, the hot melt adhesive strip 5 needs to be melted and inserted into the limiting arc slot 4 after melting, so that the hot melt adhesive strip 5 can be cooled in the limiting arc slot 4 to fix the epoxy resin protective layer 1 as a whole, so that the epoxy resin protective layer 1, the outer surface protective layer 2 and the inner surface protective layer 3 are wrapped on the outlet line to complete the protection. Through cutting, it is beneficial to improve the adaptability of the epoxy resin protective layer 1, the outer surface protective layer 2, the inner surface protective layer 3 and the outlet line. There is no need to purchase suitable sleeves for installation, which reduces the difficulty of procurement. At the same time, under the effect of cutting, it is avoided to purchase too much or too little materials, resulting in waste of resources, so as to achieve the purpose of saving materials.

[0023] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An epoxy and silicone rubber composite transformer outlet bushing, comprising an epoxy resin protective layer (1) and an outlet wire, characterized in that: An outer surface protective layer (2) for protecting the outer surface of the epoxy resin protective layer (1) is arranged on the outer surface wall of the epoxy resin protective layer (1); an inner surface protective layer (3) for filling the inside of the epoxy resin protective layer (1) is arranged on the inner surface wall of the epoxy resin protective layer (1); a limiting arc-shaped groove (4) is provided on the bottom wall of the inner surface protective layer (3); and a hot melt adhesive strip (5) adapted to the limiting arc-shaped groove (4) is provided on the top wall of the outer surface protective layer (2).

2. The epoxy and silicone rubber composite transformer outlet bushing according to claim 1, characterized in that: The outer surface protective layer (2) comprises a wear-resistant and anti-skid epoxy layer (21), the bottom wall of the wear-resistant and anti-skid epoxy layer (21) is connected to a first heat-insulating protective layer (22), and the bottom wall of the first heat-insulating protective layer (22) is provided with an anti-cold and anti-freeze layer (23).

3. The epoxy and silicone rubber composite transformer outlet bushing according to claim 2, characterized in that: The inner surface protective layer (3) comprises a second heat-insulating protective layer (31), and an insulating protective layer (32) is connected to the top wall of the second heat-insulating protective layer (31).

4. The epoxy and silicone rubber composite transformer outlet bushing according to claim 3, characterized in that: The cold and frost-proof layer (23) and the insulating protective layer (32) are respectively arranged on the top wall and the bottom wall of the epoxy resin protective layer (1); the opposite wall surfaces of the cold and frost-proof layer (23) and the insulating protective layer (32) are respectively connected to the top wall and the bottom wall of the epoxy resin protective layer (1).

5. The epoxy and silicone rubber composite transformer outlet bushing according to claim 1, characterized in that: The plurality of position-limiting arc-shaped slots (4) are arranged in an array state on the bottom wall of the second heat-insulating protective layer (31).

6. The epoxy and silicone rubber composite transformer outlet bushing according to claim 1, characterized in that: The plurality of hot melt adhesive strips (5) are distributed in an array on the top wall of the wear-resistant and non-slip epoxy layer (21).

7. The epoxy and silicone rubber composite transformer outlet bushing according to claim 6, characterized in that: The hot melt adhesive strip (5) is matched with the limiting arc-shaped slot (4), and the length dimension of the bottom opening of the limiting arc-shaped slot (4) is smaller than the length dimension of the hot melt adhesive strip (5).

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