Low-temperature toughness insulation paper
By introducing heat-resistant and toughening mechanisms into the insulating paper, the problem of poor high-temperature resistance of the insulating paper is solved, resulting in better heat dissipation and toughness, and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-20
Smart Images

Figure CN224020537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulating paper technology, specifically a low-temperature toughness insulating paper. Background Technology
[0002] Insulating paper is an electrical insulation material widely used in the manufacture of electrical equipment. It has good insulation properties and mechanical strength, which can improve the reliability of electrical insulation, prevent problems such as short circuits and leakage, and thus extend its service life.
[0003] The prior art patent document CN214897856U discloses a tensile insulating paper, including an insulating layer, a tensile layer fixedly connected to the outside of the insulating layer, and a wear-resistant layer fixedly connected to the outside of the tensile layer. The wear-resistant layer is composed of several mutually attached wear-resistant protrusions, and the wear-resistant protrusions are densely connected to the tensile layer by an adhesive. The tensile layer is connected to the top surface of the insulating layer by an adhesive. The insulating layer is wavy. This utility model, by setting the wear-resistant layer as mutually attached strip-shaped wear-resistant protrusions, enables the insulating paper to have good tensile strength without losing wear resistance. By providing nylon filaments, a tensile layer composed of glass fibers, and bonding them together with polyurethane polymer, the tensile strength of the insulating paper is enhanced. By providing a wear-resistant layer of high-chlorinated polyethylene material, the outer layer of the insulating paper has good wear resistance. By providing nano-material reinforcing ribs in the tensile layer, the compressive strength of the insulating paper is enhanced.
[0004] However, the insulating paper in the existing patent document CN214897856U has poor high-temperature resistance, which shortens its service life, reduces its practicality, and makes it difficult to meet the needs of use. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] The purpose of this invention is to provide a low-temperature toughness insulating paper to solve the problem of poor high-temperature resistance of insulating paper mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature toughness insulating paper, comprising a winding paper tube, an insulating paper body, and a heat-resistant mechanism. The outer end of the winding paper tube is movably provided with the insulating paper body, one side of the insulating paper body is fixedly provided with the heat-resistant mechanism, and one side of the insulating paper body is fixedly provided with a toughness mechanism on the side away from the heat-resistant mechanism.
[0009] The heat-resistant structure includes a base layer, polyurethane, alumina, and a thermally conductive silicone grease coating. The base layer is fixedly disposed at the inner end of the insulating paper body, polyurethane is fixedly disposed on one side of the insulating paper body, alumina is fixedly disposed on one side of the polyurethane near the base layer, and a thermally conductive silicone grease coating is fixedly disposed on one side of the alumina near the base layer. This facilitates faster heat conduction, thereby improving heat dissipation performance, avoiding the problem of excessively high temperature of the insulating paper body, and improving the high-temperature resistance of the insulating paper.
[0010] Preferably, the toughness structure includes aramid nanofibers, acrylic resin, epoxy resin, polytetrafluoroethylene and ceramic insulating coating layer. Aramid nanofibers are fixedly disposed on one side of the thermally conductive silicone grease coating near the substrate. Aramid nanofibers have excellent strength, toughness and high temperature resistance, which facilitates the improvement of the impact resistance and toughness of the insulating paper.
[0011] Preferably, an acrylic resin is fixedly disposed on one side of the aramid nanofiber near the base layer. The acrylic resin is located on one side of the base layer and is fixedly connected to the base layer. The acrylic resin facilitates the improvement of the weather resistance, water resistance and insulation performance of the insulating paper.
[0012] Preferably, an epoxy resin is fixedly disposed on one side of the base layer away from the acrylic resin. The epoxy resin has high insulation performance, high strength and good adhesion, and the epoxy resin can provide good protection for the insulating paper.
[0013] Preferably, polytetrafluoroethylene is fixedly disposed on one side of the epoxy resin away from the acrylic resin. Polytetrafluoroethylene has good chemical stability and weather resistance, and also has a certain degree of flexibility, which further improves the toughness of the insulating paper and extends its service life.
[0014] Preferably, a ceramic insulating coating layer is fixedly disposed on one side of the polytetrafluoroethylene away from the acrylic resin. The ceramic insulating coating layer has good insulation properties, high temperature resistance, mechanical properties and chemical stability, which further improves the insulation effect of the insulating paper.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This low-temperature toughness insulating paper, by setting a heat-resistant mechanism, can improve the high-temperature resistance of the insulating paper, facilitate the heat conduction, thereby improving the heat dissipation performance, avoiding the problem of excessive temperature of the insulating paper, extending its service life, improving its practicality, and making it easier to meet the needs of use;
[0017] 2. This low-temperature toughness insulating paper, by setting a toughness mechanism, facilitates the improvement of the insulation paper's toughness and strength, making it less prone to tearing due to stretching during use, thus ensuring product quality and extending the service life of the insulation paper. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a schematic cross-sectional view of the present invention.
[0020] Figure 3 This is a schematic diagram of the main structure of the present utility model;
[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram of a local detail.
[0022] In the diagram: 1. Paper roll; 2. Insulating paper body; 3. Heat-resistant mechanism; 301. Base layer; 302. Polyurethane; 303. Alumina; 304. Thermally conductive silicone grease coating; 4. Toughness mechanism; 401. Aramid nanofiber; 402. Acrylic resin; 403. Epoxy resin; 404. Polytetrafluoroethylene; 405. Ceramic insulating coating layer. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-4 This utility model provides a technical solution: a low-temperature tough insulating paper, including a winding paper tube 1, an insulating paper body 2 and a heat-resistant mechanism 3. The outer end of the winding paper tube 1 is movably provided with the insulating paper body 2, one side of the insulating paper body 2 is fixedly provided with the heat-resistant mechanism 3, and one side of the insulating paper body 2 is fixedly provided with a tough mechanism 4 on the side away from the heat-resistant mechanism 3.
[0025] The heat-resistant mechanism 3 includes a base layer 301, polyurethane 302, alumina 303, and a thermally conductive silicone grease coating 304. The base layer 301 is fixedly disposed at the inner end of the insulating paper body 2. Polyurethane 302 is fixedly disposed on one side of the insulating paper body 2. Alumina 303 is fixedly disposed on one side of the polyurethane 302 near the base layer 301. Thermally conductive silicone grease coating 304 is fixedly disposed on one side of the alumina 303 near the base layer 301. Alumina 303 facilitates the accelerated heat conduction, thereby improving heat dissipation performance and avoiding the problem of excessive temperature of the insulating paper body 2. Thermally conductive silicone grease coating 304 facilitates the improvement of the high-temperature resistance of the insulating paper body 2.
[0026] The toughness mechanism 4 includes aramid nanofibers 401, acrylic resin 402, epoxy resin 403, polytetrafluoroethylene 404, and a ceramic insulating coating layer 405. Aramid nanofibers 401 are fixedly disposed on one side of the thermally conductive silicone grease coating 304 near the base layer 301. Acrylic resin 402 is fixedly disposed on one side of the aramid nanofibers 401 near the base layer 301. The acrylic resin 402 is located on one side of the base layer 301 and is fixedly connected to the base layer 301. Epoxy resin 403 is fixedly disposed on one side of the base layer 301 away from the acrylic resin 402. Polytetrafluoroethylene 404 is fixedly disposed on one side of the epoxy resin 403 away from the acrylic resin 402. The ceramic insulating coating layer 405 is fixedly disposed on one side of the polytetrafluoroethylene 404 away from the acrylic resin 402. This improves the toughness of the insulating paper body 2 and extends its service life.
[0027] Working Principle: Firstly, when using low-temperature toughness insulating paper, the inner base layer 301 of the insulating paper body 2 is made of plant fibers, synthetic fibers, etc., possessing a certain thickness and density to provide basic insulation performance. Polyurethane 302 has good flexibility, abrasion resistance, and chemical corrosion resistance, improving the abrasion resistance of the insulating paper body 2. Alumina 303 accelerates heat conduction, thereby improving heat dissipation performance and preventing the insulating paper body 2 from overheating. The thermally conductive silicone grease coating 304 has excellent high-temperature and low-temperature resistance, maintaining good flexibility and stability even under extremely cold conditions. Furthermore, it possesses good electrical insulation, water resistance, and weather resistance, improving the high-temperature resistance of the insulating paper body 2. Aramid nanofibers... 401 has excellent strength, toughness, and high temperature resistance, which can improve the impact resistance and toughness of the insulating paper body 2. 402 acrylic resin can improve the weather resistance, water resistance, and insulation performance of the insulating paper body 2. 403 epoxy resin has high insulation performance, high strength, and good adhesion. 403 epoxy resin can play a good protective role for the insulating paper. 404 polytetrafluoroethylene has good chemical stability and weather resistance, and also has a certain degree of flexibility, which can further improve the toughness of the insulating paper body 2 and extend its service life. 405 ceramic insulating coating layer has ceramic insulating coating with good insulation performance, high temperature resistance, mechanical properties, and chemical stability, which can further improve the insulation effect.
[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.
Claims
1. A low-temperature toughness insulating paper, comprising a winding paper tube (1), an insulating paper body (2), and a heat-resistant mechanism (3), characterized in that: An insulating paper body (2) is movably provided at the outer end of the winding paper tube (1). A heat-resistant mechanism (3) is fixedly provided on one side of the insulating paper body (2). A toughness mechanism (4) is fixedly provided on one side of the insulating paper body (2) away from the heat-resistant mechanism (3). The heat-resistant mechanism (3) includes a base layer (301), polyurethane (302), alumina (303), and a thermally conductive silicone grease coating (304). The base layer (301) is fixedly disposed at the inner end of the insulating paper body (2). Polyurethane (302) is fixedly disposed on one side of the insulating paper body (2). Alumina (303) is fixedly disposed on one side of the polyurethane (302) near the base layer (301). Thermally conductive silicone grease coating (304) is fixedly disposed on one side of the alumina (303) near the base layer (301).
2. The low-temperature toughness insulating paper according to claim 1, characterized in that: The toughness mechanism (4) includes aramid nanofibers (401), acrylic resin (402), epoxy resin (403), polytetrafluoroethylene (404) and ceramic insulating coating layer (405). Aramid nanofibers (401) are fixedly disposed on one side of the thermally conductive silicone grease coating (304) on the side close to the base layer (301).
3. The low-temperature toughness insulating paper according to claim 2, characterized in that: An acrylic resin (402) is fixedly disposed on one side of the aramid nanofiber (401) near the base layer (301). The acrylic resin (402) is located on one side of the base layer (301) and is fixedly connected to the base layer (301).
4. The low-temperature toughness insulating paper according to claim 3, characterized in that: An epoxy resin (403) is fixedly disposed on one side of the base layer (301) away from the acrylic resin (402).
5. The low-temperature toughness insulating paper according to claim 4, characterized in that: Polytetrafluoroethylene (404) is fixedly disposed on one side of the epoxy resin (403) away from the acrylic resin (402).
6. The low-temperature toughness insulating paper according to claim 5, characterized in that: A ceramic insulating coating layer (405) is fixedly disposed on one side of the polytetrafluoroethylene (404) away from the acrylic resin (402).