Electrical insulation paper for preventing insulation breakdown

Abstract

The utility model discloses electrical insulation paper for preventing insulation breakdown, which comprises a polyethylene core layer, heat dissipation coatings, a hollow fiber layer and a high-temperature-resistant external insulation layer, the heat dissipation coatings are arranged on two sides of the polyethylene core layer, the hollow fiber layer is arranged on one side of the heat dissipation coatings, and the high-temperature-resistant external insulation layer is arranged on one side of the hollow fiber layer. The electric insulation paper is reasonable in structural design, the loose and porous heat dissipation coating is adopted, the edge part of the heat dissipation coating is arranged outside, the heat accumulation amount of the area of the electric insulation paper can be reduced, and meanwhile the hollow fiber layer is matched, so that the circulation performance of air flow in the electric insulation paper can be enhanced, and the flexibility and elasticity of the electric insulation paper can be enhanced.

Description

Technical Field

[0001] This utility model relates to the field of electrical insulating paper, specifically an electrical insulating paper that prevents insulation breakdown. Background Technology

[0002] The primary function of electrical insulating paper is as a high-voltage insulating material. It possesses excellent insulation properties, effectively preventing energy loss and extending the lifespan of electrical equipment. However, existing electrical insulating papers have a certain width, resulting in a significantly lower heat dissipation efficiency in the central region compared to the edges, increasing the likelihood of breakdown. Therefore, this paper proposes an electrical insulating paper designed to prevent insulation breakdown. Utility Model Content

[0003] The purpose of this invention is to provide an electrical insulating paper that prevents insulation breakdown in order to solve the above-mentioned problems.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: an electrical insulating paper for preventing insulation breakdown, comprising a polyethylene core layer, a heat dissipation coating, a hollow fiber layer, and a high-temperature resistant external insulating layer. The polyethylene core layer is provided with heat dissipation coatings on both sides, a hollow fiber layer is provided on one side of the heat dissipation coating, and a high-temperature resistant external insulating layer is provided on one side of the hollow fiber layer.

[0005] Preferably, the cross-section of the heat dissipation coating has a loose, porous structure.

[0006] Preferably, the cross-section of the edge of the hollow fiber layer is filled with the material of the heat-dissipating coating.

[0007] Preferably, the high-temperature resistant external insulation layer is made of polytetrafluoroethylene (PTFE).

[0008] Preferably, the thickness of the polyethylene core layer is greater than the thickness of the high-temperature resistant external insulation layer.

[0009] Compared with the prior art, the advantages of this utility model are: the use of a loose and porous heat dissipation coating, with the edge of the heat dissipation coating placed on the outside, can reduce the heat accumulation in the electrical insulation paper area. At the same time, in combination with the hollow fiber layer, it can not only enhance the airflow inside the electrical insulation paper, but also enhance the flexibility and elasticity of the electrical insulation paper. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] In the diagram: 1. Polyethylene core layer; 2. Heat dissipation coating; 3. Hollow fiber layer; 4. High-temperature resistant external insulation layer. Detailed Implementation

[0013] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. 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.

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Please see Figure 1 As shown, an electrical insulating paper for preventing insulation breakdown includes a polyethylene core layer 1, a heat dissipation coating 2, a hollow fiber layer 3, and a high-temperature resistant external insulating layer 4. The polyethylene core layer 1 has heat dissipation coating 2 on both sides, a hollow fiber layer 3 on one side of the heat dissipation coating 2, and a high-temperature resistant external insulating layer 4 on one side of the hollow fiber layer 3.

[0017] Furthermore, the cross-section of the heat dissipation coating 2 has a loose and porous structure.

[0018] Furthermore, the cross-section of the edge of the hollow fiber layer 3 is filled with the material of the heat dissipation coating 2.

[0019] Furthermore, the high-temperature resistant external insulation layer 4 is made of polytetrafluoroethylene.

[0020] Furthermore, the thickness of the polyethylene core layer 1 is greater than the thickness of the high-temperature resistant external insulation layer 4.

[0021] Compared with existing technologies, the difference lies in the use of a loose and porous heat dissipation coating, with the edge of the heat dissipation coating placed on the outside, which can reduce the heat accumulation in the electrical insulation paper area. At the same time, in combination with a hollow fiber layer, it can not only enhance the airflow inside the electrical insulation paper, but also enhance the flexibility and elasticity of the electrical insulation paper.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electrical insulating paper that prevents insulation breakdown, characterized in that: It includes a polyethylene core layer (1), a heat dissipation coating (2), a hollow fiber layer (3) and a high-temperature resistant external insulation layer (4). The polyethylene core layer (1) is provided with heat dissipation coating (2) on both sides, the heat dissipation coating (2) is provided with a hollow fiber layer (3) on one side, and the hollow fiber layer (3) is provided with a high-temperature resistant external insulation layer (4) on one side.

2. The electrical insulating paper for preventing insulation breakdown according to claim 1, characterized in that: The heat dissipation coating (2) has a loose and porous structure in cross section.

3. The electrical insulating paper for preventing insulation breakdown according to claim 1, characterized in that: The cross-section of the edge of the hollow fiber layer (3) is filled with the material of the heat dissipation coating (2).

4. The electrical insulating paper for preventing insulation breakdown according to claim 1, characterized in that: The high-temperature resistant external insulation layer (4) is made of polytetrafluoroethylene.

5. The electrical insulating paper for preventing insulation breakdown according to claim 1, characterized in that: The thickness of the polyethylene core layer (1) is greater than the thickness of the high-temperature resistant external insulation layer (4).

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