Pressure-resistant soft mica gasket

CN224602456UActive Publication Date: 2026-08-07SHENZHEN DANJIANG IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN DANJIANG IND CO LTD
Filing Date
2025-09-15
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0003]常规的云母垫片虽然具有较高的绝缘性能和耐热性能,但在实际应用中耐压性能和柔软度方面存在一定的不足,且在长时间的使用过程中易产生裂纹和变形,从而影响其使用寿命和密封效果

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224602456U_ABST
    Figure CN224602456U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of pressure-resistant soft mica gasket, it is related to mica gasket technical field, including gasket main part and inner edge coating component, the edge surface in the inner diameter middle of gasket main part is coated with inner edge coating component, and the outer edge surface of gasket main part is coated with outer edge coating component, moreover, the bottom surface of gasket main part is inserted with fixed piece seat component, and fixed piece seat component and the junction of gasket main part are vertically installed with fixed peg.The pressure-resistant soft mica gasket, by being provided with gasket main part, gasket main part adopts multilayer structure design, enhances the pressure resistance and softness of gasket, so that the entire gasket main part has good insulation performance and high-temperature resistance, by in the edge surface and outer edge surface in the inside middle of gasket main part, the heat generated in the working process of gasket main part can be effectively dispersed, further improve the pressure resistance and high-temperature resistance of gasket.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of mica gasket technology, specifically a pressure-resistant and flexible mica gasket. Background Technology

[0002] Mica gaskets are washers, shims, plates, or irregularly shaped insulating components made from rigid, plate-like insulating materials (natural or synthetic mica). They are mainly used for padding insulation and heat insulation of electrical equipment (such as welding machines, surge arresters), electric heating elements, compressors, and heaters.

[0003] While conventional mica gaskets have high insulation and heat resistance, they are somewhat lacking in pressure resistance and flexibility in practical applications. Furthermore, they are prone to cracking and deformation during prolonged use, which affects their service life and sealing performance. Utility Model Content

[0004] The purpose of this invention is to provide a pressure-resistant and flexible mica gasket to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure-resistant soft mica gasket, comprising a gasket body and an inner edge covering component. The inner edge covering component covers the middle edge surface of the inner diameter of the gasket body, and the outer edge covering component covers the outer edge covering surface of the gasket body. A fixing seat component is inserted and connected to the bottom surface of the gasket body, and a fixing bolt is vertically installed at the connection between the fixing seat component and the gasket body. The gasket body comprises an inner base layer, a middle layer, and an outer layer. The middle layer is provided on both the upper and lower surfaces of the inner base layer, and the outer layer is provided on the side of the middle layer away from the inner base layer.

[0006] Furthermore, the inner base layer is constructed and applied using an elastic polymer as the matrix structure, the intermediate layer is constructed using metal fibers as the reinforcing layer structure, and the outer layer is constructed and applied using synthetic fluorophlogopite material.

[0007] Furthermore, the outer surface of the outer layer is treated with plasma cleaning and ultraviolet ozone treatment to improve the surface properties of the outer layer, and the outer layer and the intermediate layer are bonded together with polyimide resin as an adhesive, and the inner base layer and the intermediate layer are bonded together with fluororubber as an adhesive.

[0008] Furthermore, the inner edge covering component and the outer edge covering component are made of the same material and are both made of metal. Both the inner edge covering component and the outer edge covering component are covered with a comb-shaped covering structure on the surface edge of the gasket body.

[0009] Furthermore, the fixed plate holder component includes a base, a fixing groove, a limiting post, an assembly hole, and a fixing hole. The fixing groove is provided on the side surface of the base near the gasket body, and the limiting post is distributed on the inner surface of the fixing groove. The assembly hole is provided on the side surface of the base away from the gasket body, and the fixing hole is vertically provided at each of the four diagonal corners of the base.

[0010] Furthermore, the inner surface structure of the fixing groove matches the bottom surface structure of the gasket body, and the limiting piles are arranged in a ring array structure with the fixing groove as the center and are distributed in three groups.

[0011] Furthermore, the limiting pile and the base are integrally structured, and the assembly hole penetrates vertically through the middle of the limiting pile's interior.

[0012] Furthermore, the bottom surface of the gasket body is provided with a hole structure that matches the outer surface structure of the limiting post and the fixing bolt, and the fixing bolt is threadedly connected to the limiting post and the gasket body.

[0013] This utility model provides a pressure-resistant and flexible mica gasket, which has the following beneficial effects:

[0014] 1. This utility model features a gasket body with a multi-layered structure, enhancing its pressure resistance and flexibility. The inner layer is made of elastic polymer material, providing excellent elasticity and flexibility to adapt to different pressure and temperature environments. The middle layer uses metal fiber as a reinforcing layer, improving the gasket's strength and pressure resistance, ensuring it is not easily broken or deformed under high pressure. The outer layer is made of synthetic fluorophlogopite, which has significant advantages over natural mica. It has a temperature resistance exceeding 1200℃, a high-temperature volume resistivity 1000 times higher than natural mica, excellent electrical insulation, extremely low vacuum outgassing at high temperatures, and resistance to acid and alkali corrosion. A micro-uniform structure of 0.2μm can be obtained through a controlled crystallization process at 950°C. This gives the entire gasket body excellent insulation and high-temperature resistance, effectively preventing current leakage and heat transfer, and protecting the safe operation of equipment.

[0015] 2. This utility model provides an inner edge covering component and an outer edge covering component on the inner middle edge surface and outer edge surface of the gasket body, respectively. Both the inner and outer edge covering components are made of metal and designed with a comb-like covering structure. This design increases the contact area between the gasket body and the covering component, thereby improving the strength and stability of the connection. At the same time, the comb-like structure also increases the strength and rigidity of the gasket body edge, preventing deformation or damage to the gasket edge under high pressure. In addition, the metal material has good thermal conductivity, which can effectively disperse the heat generated by the gasket body during operation, further improving the pressure resistance and high temperature resistance of the gasket.

[0016] 3. This utility model, through the provision of a fixed plate holder component and fixing bolts, combined with the structure of the gasket body itself, features a fixed plate holder component that allows the gasket body to be stably installed in the required position. The fixing groove on the base of the fixed plate holder component matches the bottom surface structure of the gasket body, ensuring the accuracy and stability of the gasket body installation. Simultaneously, the limiting posts are arranged in a circular array with the fixing grooves as the center, further enhancing the connection strength between the gasket body and the fixed plate holder component and preventing the gasket body from shifting or loosening during installation. The assembly holes facilitate the assembly operation between the gasket body and the fixed plate holder component, improving installation efficiency. The fixing holes allow the entire gasket assembly to be fixed to the equipment with bolts or other fasteners, further ensuring the stability and reliability of the gasket assembly. The threaded connection between the fixing bolts, the limiting posts, and the gasket body further enhances the connection strength between the gasket body and the fixed plate holder component, preventing separation or loosening between the gasket body and the fixed plate holder component under high pressure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the axial side view of the main body of a pressure-resistant and flexible mica gasket according to the present invention;

[0018] Figure 2 This is a schematic diagram of the exploded structure of the pressure-resistant soft mica gasket of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the main body of a pressure-resistant and flexible mica gasket according to the present invention;

[0020] Figure 4 This is a cross-sectional view of the main body of a pressure-resistant and flexible mica gasket according to the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the fixing seat component of a pressure-resistant and flexible mica gasket according to the present invention.

[0022] In the diagram: 1. Gasket body; 101. Inner base layer; 102. Intermediate layer; 103. Outer layer; 2. Inner edge covering component; 3. Outer edge covering component; 4. Fixing plate seat component; 401. Base; 402. Fixing groove; 403. Limiting post; 404. Assembly hole; 405. Fixing hole; 5. Fixing bolt. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1 to 5 As shown, a pressure-resistant and flexible mica gasket includes a gasket body 1 and an inner edge covering member 2. The inner edge covering member 2 covers the middle edge surface of the inner diameter of the gasket body 1, and the outer edge covering member 3 covers the outer edge surface of the gasket body 1. A fixing member 4 is inserted and connected to the bottom surface of the gasket body 1, and a fixing bolt 5 is vertically installed at the connection between the fixing member 4 and the gasket body 1. The gasket body 1 includes an inner base layer 101, an intermediate layer 102, and an outer layer 103. The intermediate layer 102 is provided on both the upper and lower surfaces of the inner base layer 101, and the outer layer 103 is provided on the side of the intermediate layer 102 away from the inner base layer 101. The inner base layer 101 is made of an elastic polymer as the matrix structure. The intermediate layer 102... The structure employs metal fiber as the reinforcing layer, and the outer layer 103 is made of synthetic fluorophlogopite. The outer surface of the outer layer 103 is treated with plasma cleaning and ultraviolet ozone to improve its surface properties. The outer layer 103 and the intermediate layer 102 are bonded together using polyimide resin as an adhesive, and the inner base layer 101 and the intermediate layer 102 are bonded together using fluororubber as an adhesive. The gasket body 1, with its multi-layer structure, enhances the gasket's pressure resistance and flexibility, thereby giving the entire gasket body 1 excellent insulation and high-temperature resistance. This effectively prevents current leakage and heat transfer, protecting the safe operation of the equipment.

[0025] like Figures 1 to 5 As shown, the inner edge covering component 2 and the outer edge covering component 3 are made of the same material and are both made of metal. Both the inner edge covering component 2 and the outer edge covering component 3 are covered with a comb-shaped covering structure on the surface edge of the gasket body 1. By setting the inner edge covering component 2 and the outer edge covering component 3 on the inner middle edge surface and the outer edge surface of the gasket body 1 respectively, the strength and rigidity of the edge of the gasket body 1 can be increased, preventing the gasket edge from deforming or being damaged under high pressure. In addition, the metal material has good thermal conductivity.

[0026] like Figures 1 to 5 As shown, the fixed plate holder component 4 includes a base 401, a fixing groove 402, limiting posts 403, an assembly hole 404, and a fixing hole 405. The base 401 has a fixing groove 402 on its surface near the gasket body 1, and limiting posts 403 are distributed on the inner surface of the fixing groove 402. The base 401 also has an assembly hole 404 on its surface away from the gasket body 1, and fixing holes 405 are vertically formed at each of the four diagonal points of the base 401. The inner surface structure of the fixing groove 402 matches the bottom surface structure of the gasket body 1. The limiting posts 403 are arranged in a circular array around the fixing groove 402, with three sets distributed in this array. The limiting posts 403 and the base... The seats 401 are integrated into one structure, and the assembly hole 404 penetrates vertically through the middle of the limiting post 403. The bottom surface of the gasket body 1 has a hole structure that matches the outer surface structure of the limiting post 403 and the fixing bolt 5. The fixing bolt 5 is threadedly connected to the limiting post 403 and the gasket body 1. With the setting of the fixed plate seat component 4 and the fixing bolt 5, and in conjunction with the setting of the gasket body 1 itself, the design of the fixed plate seat component 4 allows the gasket body 1 to be stably installed in the required position. The opening of the fixing hole 405 allows the entire gasket assembly to be fixed to the equipment by bolts and other fasteners, further ensuring the stability and reliability of the gasket assembly.

[0027] In summary, as Figures 1 to 5 As shown, when using this pressure-resistant soft mica gasket, firstly, the bottom surface of the gasket body 1 is aligned with the fixing groove 402 of the fixing seat component 4, so that the hole structure on the bottom surface of the gasket body 1 matches the limiting post 403. Then, the fixing bolt 5 passes through the assembly hole 404 and the limiting post 403 on the bottom side surface of the gasket body 1, and the gasket body 1 is fixed to the fixing seat component 4 by means of threaded connection, thus completing the installation of the gasket body 1.

[0028] During use, the multi-layered structure of the gasket body 1 effectively enhances its pressure resistance and flexibility. The elastic polymer material of the inner layer 101 provides good elasticity and flexibility, the metal fiber reinforcement layer of the middle layer 102 improves the strength and pressure resistance of the gasket, and the synthetic fluorophlogopite material of the outer layer 103 gives the gasket good insulation and high-temperature resistance. Meanwhile, the comb-like covering structure of the inner edge covering component 2 and the outer edge covering component 3 increases the contact area between the gasket body 1 and the covering components, improving the firmness and stability of the connection and enhancing the strength and rigidity of the gasket body 1's edges. The design of the fixing seat component 4 ensures that the gasket body 1 can be securely installed in the required position, and through the fixing holes 405, it cooperates with bolts and other fasteners, further ensuring the stability and reliability of the gasket assembly.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A pressure-resistant, flexible mica gasket, comprising a gasket body (1) and an inner edge covering member (2), characterized in that: The inner edge surface of the gasket body (1) is covered by an inner edge covering member (2), and the outer edge surface of the gasket body (1) is covered by an outer edge covering member (3). A fixing seat member (4) is inserted and connected to the bottom surface of the gasket body (1), and a fixing bolt (5) is vertically installed at the connection between the fixing seat member (4) and the gasket body (1). The gasket body (1) includes an inner base layer (101), an intermediate layer (102) and an outer layer (103). The upper and lower surfaces of the inner base layer (101) are provided with an intermediate layer (102), and the surface of the intermediate layer (102) away from the inner base layer (101) is provided with an outer layer (103).

2. The pressure-resistant and flexible mica gasket according to claim 1, characterized in that, The inner base layer (101) is made of an elastic polymer as the matrix structure, the middle layer (102) is made of metal fiber as the reinforcing layer structure, and the outer layer (103) is made of synthetic fluorophlogopite material.

3. The pressure-resistant and flexible mica gasket according to claim 1, characterized in that, The outer surface of the outer layer (103) is treated with plasma cleaning and ultraviolet ozone to improve the surface properties of the outer layer (103). The outer layer (103) and the intermediate layer (102) are bonded together with polyimide resin as an adhesive. The inner base layer (101) and the intermediate layer (102) are bonded together with fluororubber as an adhesive.

4. The pressure-resistant and flexible mica gasket according to claim 1, characterized in that, The inner edge covering component (2) and the outer edge covering component (3) are made of the same material and are both made of metal. The inner edge covering component (2) and the outer edge covering component (3) are both covered with a comb-shaped covering structure on the surface edge of the gasket body (1).

5. The pressure-resistant and flexible mica gasket according to claim 1, characterized in that, The fixed plate holder component (4) includes a base (401), a fixing groove (402), a limiting post (403), an assembly hole (404), and a fixing hole (405). The base (401) has a fixing groove (402) on the side surface close to the gasket body (1), and the inner surface of the fixing groove (402) is provided with limiting posts (403). The base (401) has an assembly hole (404) on the side surface away from the gasket body (1), and the base (401) has a fixing hole (405) vertically opened at each of the four diagonal corners.

6. The pressure-resistant and flexible mica gasket according to claim 5, characterized in that, The inner surface structure of the fixing groove (402) matches the bottom surface structure of the gasket body (1), and the limiting piles (403) are arranged in a ring array structure with the fixing groove (402) as the center and are distributed in three groups.

7. The pressure-resistant and flexible mica gasket according to claim 5, characterized in that, The limiting pile (403) and the base (401) are integrally structured, and the assembly hole (404) penetrates vertically through the middle of the interior of the limiting pile (403).

8. The pressure-resistant and flexible mica gasket according to claim 5, characterized in that, The bottom surface of the gasket body (1) is provided with a hole structure that matches the outer surface structure of the limiting post (403) and the fixing bolt (5), and the fixing bolt (5) is threadedly connected to the limiting post (403) and the gasket body (1).