Insulating member and electrical apparatus

Abstract

The application discloses an insulating piece, which comprises an insulating body and an elastic body sleeved on the insulating body, the insulating body comprises a connecting part and a conductor mounting part, the connecting part is a hollow columnar structure and is arranged around the conductor mounting part, the connecting part comprises two mounting surfaces oppositely arranged along the axial direction of the connecting part and an outer circumferential surface connecting the two mounting surfaces, and the elastic body tightly covers the outer circumferential surface of the connecting part. The application also discloses an electrical equipment, which adopts the insulating piece as described above, has a protective layer capable of preventing water, dust and ultraviolet rays, and is reliable in sealing and low in cost.

Description

Technical Field

[0001] This application relates to the field of high-voltage electrical equipment, and in particular to an insulating component and electrical equipment. Background Technology

[0002] Insulating components are key parts in equipment such as gas-insulated metal-enclosed switchgear (GIS) or gas-insulated metal-enclosed transmission lines (GIL), including pot insulators, post insulators, disc insulators, cable termination bushings, and terminal blocks. Their function is to provide electrical insulation, mechanical support, or to separate gas chambers. Conventional insulating components include insulating parts and conductor inserts made of thermosetting or thermoplastic materials. During installation and operation, the outer surface of the insulating components is directly exposed to the outdoor environment. In outdoor or harsh environments, without effective protection, this outer surface will come into direct contact with moisture, dust, ultraviolet radiation, and corrosive substances, leading to surface aging and even discharge faults, thus affecting the safety and service life of the insulating components. Currently, the industry uses methods such as coating the insulating components with protective paint and installing metal flanges for protection, but these methods have drawbacks such as short service life of the protective paint (easy to peel off) and high cost and susceptibility to corrosion of the metal flanges. Summary of the Invention

[0003] In view of the shortcomings of the prior art, one of the objectives of this application is to provide an insulating component with a waterproof, dustproof, and UV-resistant protective layer, which is reliable in sealing and low in cost.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is: an insulating component, including an insulating body and an elastic body sleeved on the insulating body. The insulating body includes a connecting part and a conductor mounting part. The connecting part is a hollow columnar structure and is arranged around the conductor mounting part. The connecting part includes two mounting surfaces arranged opposite to each other along the axial direction of the connecting part and an outer peripheral surface connecting the two mounting surfaces. The elastic body tightly covers the outer peripheral surface of the connecting part.

[0005] In one embodiment, the insulating body is integrally cast using epoxy resin.

[0006] In one embodiment, the elastomer is made of any one of the following materials: high-temperature vulcanized silicone rubber, room-temperature vulcanized silicone rubber, liquid silicone rubber, fluororubber, fluorosilicone rubber, EPDM rubber, nitrile rubber, and butyl rubber.

[0007] In one embodiment, the elastic body is a ring-shaped structure, and the elastic body is sleeved and fixed on the outer peripheral surface of the connecting part. The width of the elastic body is greater than the width of the insulating body, so that the two ends of the elastic body protrude from the two mounting surfaces of the connecting part respectively.

[0008] In one embodiment, the outer peripheral surface of the connecting part is provided with connecting grooves at both opposite ends along the axial direction of the connecting part. The connecting grooves include first connecting grooves, which are continuously opened along the entire circumference of the connecting part. The elastic body includes an annular body and two first connecting bodies respectively disposed at both ends of the annular body along the axial direction of the elastic body. The inner surface of the annular body abuts against the outer peripheral surface of the connecting part, and the two first connecting bodies are respectively embedded and locked in the two first connecting grooves.

[0009] In one embodiment, the first connecting groove includes a sidewall and a bottom wall. The sidewall extends radially from the end edge of the outer peripheral surface toward the interior of the insulator along the connection portion, and the bottom wall extends axially from the outer edge of the mounting surface toward the interior of the insulator along the connection portion. The sidewall and the bottom wall are perpendicular to each other.

[0010] In one embodiment, the first connector is a ring structure, with the outer ring surface of the first connector fitting and connected to the inner side surface of the ring body, the inner wall surfaces of the two first connectors respectively abutting against the two side walls, and the inner ring surfaces of the two first connectors respectively abutting against the two bottom walls.

[0011] In one embodiment, the connecting groove further includes a second connecting groove. The second connecting groove extends from the inner edge of the sidewall away from the outer peripheral surface along the axial direction of the connecting portion toward the interior of the insulating member. The second connecting groove is continuously formed along the entire circumferential direction of the connecting portion. The second connecting groove includes a first inner buckle wall, a second inner buckle wall, and a third inner buckle wall that are interconnected. The first inner buckle wall extends from the end edge of the bottom wall away from the mounting surface along the axial direction of the connecting portion toward the interior of the insulating member, such that the extension direction of the first inner buckle wall coincides with that of the bottom wall. The second inner buckle wall extends from the end edge of the first inner buckle wall away from the mounting surface along the radial direction of the connecting portion toward the direction close to the outer peripheral surface. The third inner buckle wall extends from the outer edge of the second inner buckle wall away from the first inner buckle wall along the axial direction of the connecting portion toward the direction close to the mounting surface, until it extends to the sidewall.

[0012] In one embodiment, the elastomer further includes two second connectors, which extend from the inner wall surface of the first connector near the inner annular surface of the first connector along the axial direction of the elastomer toward the interior of the elastomer and protrude from the first connector, and the second connectors are perpendicular to the first connector.

[0013] In one embodiment, the second connector is engaged in the second connecting groove, the first surface of the second connector abuts against the third inner buckle wall, the second surface of the second connector abuts against the second inner buckle wall, and the third surface of the second connector abuts against the first inner buckle wall.

[0014] In one embodiment, the inner length of the elastomer is less than the width of the insulating body, and the difference between the width of the insulating body and the inner length of the elastomer is 2% to 30% of the inner length of the elastomer.

[0015] In one embodiment, the width of the first connector is greater than the width of the first connecting groove, and the difference between the width of the first connector and the width of the first connecting groove is 15% to 25% of the width of the first connector.

[0016] In one embodiment, the thickness of the elastomer ranges from 3 mm to 10 mm.

[0017] The second objective of this application is to provide an electrical device, including the aforementioned insulating component, forming a waterproof, dustproof, and UV-resistant protective layer, which is reliably sealed and has a low cost.

[0018] The technical solution adopted in this application is: an electrical device, including at least two device housings, an insulating component and a conductor, wherein an insulating component is sandwiched between two adjacent device housings, and the two mounting surfaces of the connection portion are respectively abutted and fixed to the opposite sides of the two adjacent device housings; the conductor passes through the device housing and is fixed to the conductor mounting portion.

[0019] The beneficial effects of this application are: it provides a universal and reliable surface protection solution for various insulating components exposed to harsh external environments. The insulating component provided by this application includes an insulating body and an elastomer. The elastomer tightly covers the entire outer surface of the insulating body exposed to the external environment, forming an effective protective layer. The elastomer can provide effective protection at the connection between the insulating component and other components. In a more preferred embodiment, through the fixed connection between the insulating component and other components, the axial clamping force applied to the elastomer causes it to deform, thereby forming a reliable seal between the insulating component and other components. After assembly, the entire surface of the insulating body is completely enclosed within the elastomer and other components, constructing a fully enclosed protective system that achieves waterproof, dustproof, and UV protection. Furthermore, due to the low cost of elastomer materials, this solution significantly reduces manufacturing costs while effectively preventing the insulating component from becoming damp and aging during long-term operation, extending the product's service life and operational reliability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the insulating member 100 in one embodiment of this application;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the insulating body 200 in one embodiment of this application;

[0023] Figure 3 This is a three-dimensional structural diagram of the elastomer 300 in one embodiment of this application;

[0024] Figure 4 This is a planar sectional view of the insulating member 100 in one embodiment of this application;

[0025] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 This is a perspective sectional view of the insulating member 100 in one embodiment of this application;

[0027] Figure 7 yes Figure 6 Enlarged view of point B in the middle;

[0028] Figure 8 This is a partial cross-sectional view of the insulating body 200 in another embodiment of this application;

[0029] Figure 9 This is a partial cross-sectional view of the elastomer 300 in another embodiment of this application;

[0030] Figure 10 This is a three-dimensional structural diagram of a flange 400 mounted on an insulating component 100 according to one embodiment of this application. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] See Figure 1 and Figure 2This application provides an insulating component 100, disposed within an electrical device, comprising an insulating body 200 and an elastic body 300 sleeved on the insulating body 200. The insulating body 200 includes a connecting portion 210 and a conductor mounting portion 220. The connecting portion 210 is a hollow columnar structure and surrounds the conductor mounting portion 220, used for mounting the insulating component 100 on the electrical device. The conductor mounting portion 220 is used for installing and electrically connecting conductors inside the electrical device, such as connecting conductive rods. The insulating body 200 is made of insulating material, such as epoxy resin vacuum casting, and is a one-piece structure, meaning the connecting portion 210 and the conductor mounting portion 220 are integrally cast with epoxy resin. The axial directions of the connecting portion 210, the conductor mounting portion 220, and the insulating body 200 coincide with the axial direction of the insulating component 100.

[0033] The connecting portion 210 includes two mounting surfaces 211 arranged opposite each other along its axial direction and an outer peripheral surface 212 connecting the two mounting surfaces 211. The annular edges at both ends of the outer peripheral surface 212 are respectively connected to the two mounting surfaces 211. The connecting portion 210 is provided with a plurality of first mounting holes 201. The first mounting holes 201 penetrate the two mounting surfaces 211 along the axial direction of the insulating body 200, that is, the axial direction of the first mounting holes 201 is parallel to the axial direction of the insulating body 200. The plurality of first mounting holes 201 are evenly arranged along the circumference of the insulating body 200 at the edge of the mounting surfaces 211 to connect and isolate different electrical components and air chambers, so that the insulating component 100 plays the role of electrical insulation, mechanical support and air chamber sealing inside the electrical equipment.

[0034] In this embodiment, the first mounting hole 201 is a smooth hole used to accommodate fasteners such as bolts, so as to connect and fix the insulating component 100 to other components in the electrical equipment. In other embodiments, depending on the assembly requirements, the first mounting hole may also be a threaded hole or other types of mounting holes, which is not limited here.

[0035] Continue reading Figure 2 In one embodiment, the conductor mounting portion 220 has a structure with both end faces recessed inward. The recesses on both end faces are in opposite directions and are recessed towards each other. Without increasing the overall axial dimension of the insulating component 100, the creepage distance on the surface of the insulating component 100 is effectively extended, thereby significantly improving its ability to prevent surface flashover in dirty or humid environments. At the same time, while ensuring insulation performance, the amount of insulating material used is reduced, and the weight and manufacturing cost of the insulating component 100 are reduced.

[0036] In another embodiment, the two end faces of the conductor mounting portion are recessed in the same direction and have the same structure, giving the insulation component an overall basin-shaped structure. In yet another embodiment, the two end faces of the conductor mounting portion are recessed in opposite directions and towards each other, i.e., the two end faces of the conductor mounting portion protrude outward along their axial direction. In other embodiments, the conductor mounting portion can also have other structures, as long as it is located within the cavity of the connector and allows the insulation component to be installed in the electrical equipment via the mounting surface on the connector; no limitation is imposed here.

[0037] Conductor inserts 221 are provided on the conductor mounting section 220 for fixing and connecting the internal conductors of the electrical equipment. In one application scenario, three conductor inserts 221 are provided, and the central axes of the three conductor inserts 221 are arranged sequentially along the same diameter direction of the insulation body 200, forming a linear distribution structure. This layout is designed based on the arrangement structure of the internal conductors and the electrical clearance requirements of the electrical equipment, and can be designed according to the actual operating conditions. In other application scenarios, the three conductor inserts can also be arranged in a triangular distribution or other forms. In addition, the number of conductor inserts can also be set to one, two, four, or other numbers, as long as it can effectively match the internal electrical connection requirements of the equipment, optimize the electric field distribution, and facilitate the subsequent installation and wiring of the conductors.

[0038] In one embodiment, depending on the actual operating conditions, the insulating component 100 further includes at least one vent hole (not shown in the figure). The vent hole extends axially through the two mounting surfaces 211 of the insulating body 200, and is used to balance the air pressure between the two air chambers of the insulating component 100 during operation, preventing the sealing of the insulating component 100 from failing due to excessive air pressure difference. It is understood that when the insulating component 100 is provided with a vent hole, the insulating component 100 only serves as mechanical support and electrical insulation in the electrical equipment, and there is no need to consider the air chamber sealing requirements.

[0039] The elastomer 300 is tightly wrapped around the outer peripheral surface 212 of the connecting part 210, forming a protective layer outside the insulating body 200. This enhances the environmental adaptability of the insulating component 100, enabling it to achieve waterproofing, dustproofing, and UV protection, ensuring the long-term reliability of the insulating component 100. Furthermore, compared to the existing technology that uses metal flange protection, the elastomer 300 of this application can be quickly installed without additional connecting structures, reducing the number of parts, simplifying the installation process, improving work efficiency, and effectively reducing overall weight and material costs while enhancing protective effects. The elastomer 300 is made of an elastic material.

[0040] In one embodiment, the elastomer 300 is made of rubber material, specifically, it can be made of any one of the following materials: high-temperature vulcanized silicone rubber (HTV), room-temperature vulcanized silicone rubber (RTV), liquid silicone rubber (LSR), fluororubber, fluorosilicone rubber, EPDM rubber, nitrile rubber, butyl rubber, etc. Preferably, the elastomer 300 is made of high-temperature vulcanized silicone rubber. High-temperature vulcanized silicone rubber material has excellent sealing performance, resilience, and weather resistance; its Shore hardness can reach 30 Sh A or higher, dielectric strength is greater than 20 kV / mm, elongation at break is between 200% and 350%, and tensile strength is greater than 5.2 MPa. When the elastomer 300 tightly covers the outer peripheral surface 212 of the connecting part 210, its good elasticity, strength and weather resistance can effectively block the intrusion of moisture and dust, withstand ultraviolet radiation for a long time, have excellent insulation and protection performance, can be used for a long time in harsh outdoor and complex working conditions, and has strong resistance to deformation and tearing. It is not easy to crack or fail under long-term stress and dynamic working conditions, and has a long service life and stable performance.

[0041] In one application scenario, the elastomer 300 is made of high-temperature vulcanized silicone rubber and is coated onto the outer peripheral surface 212 of the insulating body 200 through an integral high-temperature injection vulcanization molding process, forming a tightly bonded integral structure between the elastomer 300 and the insulating body 200. Prior to the integral high-temperature injection vulcanization, a coupling agent material is coated onto the outer peripheral surface of the insulating body 200 to ensure a tight connection between the elastomer 300 and the insulating body 200, preventing the elastomer 300 from detaching during long-term operation.

[0042] In another application scenario, a high-temperature vulcanized silicone rubber elastomer 300 is pre-prepared using a high-temperature injection molding process. This elastomer is then directly fitted onto the outer peripheral surface 212 of the insulating body 200, or it is adhesively fitted onto the outer peripheral surface 212 of the insulating body 200. The adhesive fitting process includes: first, applying a primer and then an adhesive sequentially to the outer peripheral surface 212 of the insulating body 200 to enhance the interfacial bonding between the insulating body 200 and the elastomer 300; then, the pre-prepared elastomer 300 is fitted over the outer peripheral surface 212 of the insulating body 200. Preferably, the primer is a general-purpose silane or titanate primer, and the adhesive is room-temperature vulcanizing silicone rubber. Alternatively, the outer peripheral surface 212 may not be coated with a primer, and the elastomer 300 can be directly bonded to the outer peripheral surface 212 of the insulating body 200 using the adhesive, as long as the bond is strong and does not detach; this is not a limitation. By installing the elastomer 300 onto the insulating body 200 through adhesive bonding, it is ensured that there is no air gap between the insulating body 200 and the elastomer 300. This not only prevents moisture from entering the insulating body 200 and ensures sealing performance, but also avoids partial discharge caused by electric field distortion due to air gaps, significantly improving the long-term operational reliability of the insulating component 100.

[0043] In other embodiments, the elastomer may also be other types of rubber elastomers or elastic materials with similar protective functions, as long as they can provide waterproof, dustproof, and UV protection for the insulating component, and there are no restrictions on this. The elastomer may also be covered on the outer periphery of the insulating body in other ways, and there are no restrictions on this either.

[0044] Continue reading Figure 1 The elastomer 300 tightly covers the entire outer peripheral surface 212 of the insulating body 200, forming a protective layer of uniform thickness. That is, the elastomer 300 as a whole has a ring structure with a certain thickness. This structure is simple and helps to simplify the manufacturing process, thereby reducing production costs.

[0045] In this embodiment, the elastomer 300 has a ring-shaped structure. After the elastomer 300 is fitted onto the outer peripheral surface 212 of the insulating body 200, the axial direction of the elastomer 300 coincides with the axial direction of the insulating body 200. The radial dimension of the elastomer 300 along the insulating member 100 is defined as the thickness of the elastomer 300, and the axial dimension of the elastomer 300 along the insulating member 100 is defined as the width of the elastomer 300. In one application scenario, the thickness of the elastomer 300 ranges from 3mm to 10mm, preferably from 3mm to 5mm. This dimensional design can form a protective layer with sufficient mechanical strength and environmental barrier capability on the outer periphery of the insulating body 200, which can effectively resist the erosion of external environmental factors such as moisture, dust, salt spray, and ultraviolet rays, preventing them from penetrating to the surface of the insulating body 200, thereby avoiding surface discharge, moisture degradation, or material aging, and ensuring the long-term electrical reliability of the insulating member 100 under complex working conditions. At the same time, it avoids the increased manufacturing costs and installation difficulties caused by excessive thickness, as well as the increase in the overall weight and volume of the insulation component 100, which is conducive to lightweight design and achieves optimal cost.

[0046] The width of the insulating body 200 is defined as the dimension of its outer peripheral surface 212 along the axial direction of the insulating member 100. The width of the elastic body 300 is slightly larger than the width of the insulating body 200. When the elastic body 300 is fitted and fixed onto the outer peripheral surface 212 of the insulating body 200, the two ends of the elastic body 300 protrude from the two mounting surfaces 211 of the insulating member 100, thereby allowing the elastic body 300 to completely cover the entire outer peripheral surface 212 of the insulating body 200. Furthermore, the portion of the elastic body 300 protruding from the insulating member 100 can also cover other components connected to the insulating member 100. On the one hand, no exposed areas are left on the insulating body 200, ensuring that the outer peripheral surface 212 of the insulating body 200 is tightly protected by the elastic body 300 from one end to the other, completely isolating the surface of the insulating body 200 from direct corrosion by the external environment (such as moisture, dust, and ultraviolet rays), effectively preventing surface aging and degradation of insulation performance. On the other hand, when the insulating component 100 is connected to other components, the two ends of the elastomer 300 extend and cover the other components respectively, so that the elastomer 300 covers the gap at the connection between the insulating component 100 and other components to form a protective layer, preventing external moisture, impurities and other substances from entering the gap and affecting the sealing and connection reliability between the insulating component 100 and other components.

[0047] Combination Figures 3 to 5 As shown, in another embodiment, the outer peripheral surface 212 of the connecting portion 210 is provided with connecting grooves at both opposite ends along the axial direction of the connecting portion 210. The connecting grooves include a first connecting groove 2121, which is an annular groove that is continuously opened along the entire circumference of the connecting portion 210. The first connecting groove 2121 includes a side wall 21211 and a bottom wall 21212 that are connected to each other. The side wall 21211 extends from the end edge of the outer peripheral surface 212 along the radial direction of the connecting portion 210 toward the interior of the insulating member 100. The bottom wall 21212 extends from the outer edge of the mounting surface 211 along the axial direction of the connecting portion 210 toward the interior of the insulating member 100. The side wall 21211 and the bottom wall 21212 are perpendicular to each other. The accommodating space formed between the side wall 21211 and the bottom wall 21212 is the first connecting groove 2121. The elastomer 300 tightly covers the outer peripheral surface 212 of the insulating body 200 and completely fills the first connecting groove 2121, forming a complete protective layer. Similarly, in this embodiment, the elastomer 300 can be coated onto the outer peripheral surface 212 of the insulating body 200 by an integral high-temperature injection vulcanization molding process, or it can be prepared separately in advance by a high-temperature injection vulcanization molding process and then installed on the outer peripheral surface 212 of the insulating body 200. There is no limitation on this.

[0048] The elastic body 300 includes an annular body 310 and two first connecting bodies 321 respectively disposed at both ends of the annular body 310 along the axial direction of the elastic body 300. The annular body 310 includes two end faces 301 located at its two axial ends, an inner surface 311 connecting the two end faces 301 and located on the inner side, and an outer surface connecting the two end faces 301 and located on the outer side. The first connecting body 321 has a ring-shaped structure and is perpendicularly disposed on the inner surface 311 of the annular body 310. The first connecting body 321 includes two walls disposed opposite to each other at its two axial ends, an inner annular surface connecting the two walls and located on the inner side, and an outer annular surface connecting the two walls and located on the outer side. The wall facing the outer side of the elastic body 300 is defined as the outer wall surface 3212 of the first connecting body 321, and the wall facing the inner side of the elastic body 300 is defined as the inner wall surface 3211 of the first connecting body 321. The outer annular surface of the first connector 321 is fitted and connected to the inner surface 311 of the annular body 310. The inner wall surface 3211 and the outer wall surface 3212 of the first connector 321 are both perpendicularly connected to the inner surface 311 of the annular body 310. The outer wall surface 3212 of the first connector 321 located at the same end is flush with the end face 301 of the annular body 310, so that the axial cross section of the elastic body 300 is "U" shaped. As a result, when the elastic body 300 is fitted onto the outer peripheral surface 212 of the insulating body 200, the inner surface 311 of the annular body 310 abuts against the outer peripheral surface 212 of the insulating body 200, and the two first connectors 321 are respectively embedded and locked in the two first connecting grooves 2121. Specifically, the distance between the inner wall surfaces 3211 of the two first connectors 321 is equal to the distance between the side walls 21211 of the two first connecting grooves 2121, so that after installation, the inner wall surfaces 3211 of the two first connectors 321 respectively abut against the side walls 21211 of the two first connecting grooves 2121. The radial dimension of the side wall 21211 of the first connecting groove 2121 along the connecting portion 210 is defined as the depth of the first connecting groove 2121. The radial height of the first connector 321 along the elastic body 300 is equal to the depth of the first connecting groove 2121, so that after installation, the inner annular surfaces of the two first connectors 321 respectively abut against the bottom walls 21212 of the two first connecting grooves 2121. The mating connection between the first connectors 321 and the first connecting grooves 2121 provides a clear axial positioning for the elastic body 300, thereby greatly enhancing the coverage stability and connection reliability of the elastic body 300 over the insulating body 200.

[0049] It is understandable that when the elastomer 300 in this embodiment is prepared separately using a high-temperature injection vulcanization molding process, and then installed and covered onto the outer peripheral surface 212 of the insulating body 200, reliable mechanical fixation can be achieved due to the provision of the first connector 321 and the first connecting groove 2121. This is because when the elastomer 300 is fitted onto the outer peripheral surface 212 of the insulating body 200, and the two first connectors 321 are securely engaged within the first connecting groove 2121, reliable mechanical fixation can be achieved. Therefore, it is not necessary to apply a primer or adhesive to the outer peripheral surface 212 of the insulating body 200 to ensure that the elastomer 300 is tightly covered onto the insulating body 200, simplifying the assembly process and improving connection reliability.

[0050] Furthermore, when the elastomer 300 is directly fitted onto the insulating body 200 without a primer or adhesive, in order to make the elastomer 300 more tightly covered, in one embodiment, the distance between the inner wall surfaces 3211 of the two first connecting bodies 321 when the elastomer 300 is not compressed is defined as the inner length of the elastomer 300, denoted by D; when two first connecting grooves 2121 are provided, the width of the insulating body 200 is the distance between the side walls 21211 of the two first connecting grooves 2121, denoted by N; D is set to be slightly less than N, so that the elastomer 300 and the insulating body 200 are fixed by interference fit, and the difference between N and D is in the range of (2%~30%)×D. In another embodiment, by changing the material formula of the elastomer 300, the performance of the elastomer 300 can be controlled to securely fit the elastomer 300 onto the insulating body 200. For example, setting the elongation at break of the elastomer 300 material to be greater than or equal to 300% gives the elastomer 300 good ductility, better plastic deformation capacity during assembly, and the ability to absorb energy through deformation under stress, thereby preventing breakage; or setting the Shore hardness of the elastomer 300 material to be greater than 60 ShA increases the elastic modulus of the elastomer 300, making the compression deformation of the elastomer 300 smaller, so that the annular body 310 and the two first connecting bodies 321 can generate a greater clamping force on the insulating body 200 during interference fit, enhancing the friction between the elastomer 300 and the insulating body 200, and further preventing the elastomer 300 from falling off.

[0051] After the elastomer 300 is fitted onto the insulating body 200, the dimension of the annular body 310 along the radial direction of the insulating member 100 is the thickness of the elastomer 300. In one application scenario, the thickness of the elastomer 300 is in the range of 3mm to 10mm, preferably in the range of 3mm to 5mm, which is consistent with the aforementioned implementation method and will not be repeated here.

[0052] The width of the first connecting groove 2121 is defined as the dimension of the bottom wall 21212 along the axial direction of the connecting portion 210, which is also the distance between the side wall 21211 and the mounting surface 211. The width of the first connecting groove 2121 is defined as the distance between the inner wall surface 3211 and the outer wall surface 3212 of the first connecting body 321 along the axial direction of the connecting portion 210. The width of the first connecting body 321 is set to be slightly larger than the width of the first connecting groove 2121, and the widths of the two first connecting bodies 321 are equal. When the first connecting body 321 is installed in the first connecting groove 2121 and the elastic body 300 is not axially compressed, the two first connecting bodies 321 protrude axially from the two mounting surfaces 211 of the insulating body 200, respectively, and the protrusion dimensions are equal. Simultaneously, the difference between the width of the first connecting body 321 and the width of the first connecting groove 2121 is set to be 15% to 25% of the width of the first connecting body 321. Specifically, the width of the first connector 321 is represented by h, and the difference between the width of the first connector 321 and the width of the first connecting groove 2121 is represented by m. Then, the range of m is (15%~25%)×h. This setting can ensure that when the elastic body 300 is axially compressed, the part of the first connector 321 protruding from the insulating body 200 can be fully compressed, so that the outer wall surface 3212 of the first connector 321 after compression can be flush with the mounting surface 211 of the insulating body 200.

[0053] In a preferred embodiment, the width of the first connecting groove 2121 is set to 3mm, and the width of the first connecting body 321 is set to 4mm, that is, the width of the first connecting body 321 is 1mm larger than the width of the first connecting groove 2121. This design ensures that after the elastic body 300 is installed on the insulating body 200 and before it is axially compressed, the covered elastic body 300 slightly protrudes along the axial direction of the insulating member 100 at the two mounting surfaces 211 of the insulating body 200, and the lengths of the protruding portions at both ends along the axial direction of the insulating member 100 are equal, that is, the distance between the outer wall surface 3212 of the two first connecting bodies 321 and the corresponding mounting surface 211 of the insulating body 200 is 1mm.

[0054] In this embodiment, since both ends of the elastic body 300 protrude from the two mounting surfaces 211 of the insulating body 200, when the insulating body 200 is fixedly connected to other components, the component will be in close contact with the protruding part of the elastic body 300 and apply an axial clamping force to the elastic body 300, causing it to undergo elastic compression deformation. This compressible structure design can achieve the following technical effects: 1) The elastic body 300 deforms under the action of the axial clamping force, tightly filling the tiny gap between the component and the mounting surface 211 of the insulating body 200. At this time, the protruding part of the elastic body 300 will be squeezed and generate a reverse force on the component, making the mounting surface 211 of the insulating body 200 in close contact with the end face of the component, preventing loosening, thereby achieving the desired effect. 1) A reliable seal is formed between the two, effectively preventing the intrusion of external media; 2) After the insulation component 100 is assembled, the entire outer surface of the insulation body 200 is completely wrapped between the elastomer 300 and the components at both ends, forming a fully enclosed protective system that can effectively resist the erosion of moisture, dust and ultraviolet rays; 3) It can effectively isolate the influence of various environmental factors on the insulation body 200, avoid the insulation component 100 from getting damp or aging in the long-term operation, and significantly extend the service life and operational reliability of the insulation component 100; 4) The elastomer 300 has good resilience and plays a buffering and protective role in the assembly of the insulation component 100 with other components, preventing damage to the insulation component 100 from bumps or excessive tightening.

[0055] The depth of the first connecting groove 2121 is set to be less than the minimum distance between the wall of the first mounting hole 201 and the outer peripheral surface 212 of the insulating body 200. This ensures the structural strength of the insulating body 200 by preventing the first connecting groove 2121 from interfering with or connecting to the first mounting hole 201, thus preserving the integrity of the first mounting hole 201. This not only maintains the overall structural integrity of the insulating body 200 but also guarantees its structural strength and reliability when bearing the preload of the fastener. Furthermore, it avoids assembly interference. Because the first connecting groove 2121 is shallow, there is still sufficient space between it and the first mounting hole 201. Therefore, when the fastener passes through the first mounting hole 201 for locking, the shank or head of the fastener will not physically interfere with or contact the elastic body 300 filled in the first connecting groove 2121. This provides sufficient working space for the assembly process, ensuring smooth assembly of the insulating component 100 with other components.

[0056] Combination Figures 6 to 9As shown, in another embodiment, the outer peripheral surface 212 of the connecting portion 210 is provided with connecting grooves at both opposite ends along the axial direction of the connecting portion 210. The connecting grooves include a first connecting groove 2121 and a second connecting groove 2122 that are connected to each other. The first connecting groove 2121 includes a side wall 21211 and a bottom wall 21212, which are similar to those described above and will not be repeated here. The second connecting groove 2122 is an annular groove. The second connecting groove 2122 extends from the inner edge of the side wall 2121 away from the outer peripheral surface 212 along the axial direction of the connecting portion 210 toward the interior of the insulating member 100, and is continuously opened along the entire circumference of the connecting portion 210. The second connecting groove 2122 includes a first inner wall 21221, a second inner wall 21222, and a third inner wall 21223 that are connected to each other. The first inner buckle wall 21221 extends from the end edge of the bottom wall 21212 away from the mounting surface 211 along the axial direction of the connecting portion 210 toward the interior of the insulating member 100, so that the extension direction of the first inner buckle wall 21221 coincides with that of the bottom wall 21212; the second inner buckle wall 21222 extends from the end edge of the first inner buckle wall 21221 away from the mounting surface 211 along the radial direction of the connecting portion 210 toward the direction close to the outer peripheral surface 212, and the second inner buckle wall 21222 is perpendicular to the first inner buckle wall 21221; the third inner buckle wall 21223 extends from the outer edge of the second inner buckle wall 21222 away from the first inner buckle wall 21221 along the axial direction of the connecting portion 210 toward the direction close to the mounting surface 211, until it extends to the side wall 21211, and the third inner buckle wall 21223 is perpendicular to the second inner buckle wall 21222. The second inner wall 21222 is parallel to the side wall 21211, and the third inner wall 21223 is parallel to the bottom wall 21212. The accommodating space formed between the first inner wall 21221, the second inner wall 21222, and the third inner wall 21223 is the second connecting groove 2122. The second connecting groove 2122 and the aforementioned first connecting groove 2121 together form the connecting groove in this embodiment, making the cross-section of the connecting groove stepped.

[0057] The connecting groove, formed by the first inner retaining wall 21221, the second inner retaining wall 21222, and the third inner retaining wall 21223, creates a further inwardly recessed second connecting groove 2122 on top of the first connecting groove 2121. This allows the elastomer 300 to tightly cover the outer peripheral surface 212 of the insulating body 200 and completely fill the first connecting groove 2121 and the second connecting groove 2122, forming a complete protective layer. Similarly, in this embodiment, the elastomer 300 can be coated onto the outer peripheral surface 212 of the insulating body 200 by an integral high-temperature injection vulcanization molding process, or it can be prepared separately in advance by a high-temperature injection vulcanization molding process and then installed on the outer peripheral surface 212 of the insulating body 200. No limitation is imposed here.

[0058] Continue reading Figure 7 and Figure 9In this embodiment, the elastic body 300 includes an annular body 310, two first connecting bodies 321 respectively disposed at both ends of the annular body 310 along the axial direction of the elastic body 300, and a second connecting body 322 disposed on the first connecting bodies 321. The specific structures of the annular body 310 and the first connecting bodies 321 are the same as described above and will not be repeated. The second connecting body 322 extends from the edge of the inner wall surface 3211 of the first connecting body 321 near the inner annular surface along the axial direction of the elastic body 300 toward the interior of the elastic body 300 and protrudes from the first connecting body 321. That is, in the axial direction of the elastic body 300, the two second connecting bodies 322 at both ends extend toward each other and protrude from the inner wall surface 3211 of the first connecting body 321. The second connecting body 322 is also an annular structure and is perpendicular to the first connecting body 321, so that the cross-section of the whole formed by the first connecting body 321 and the second connecting body 322 is L-shaped.

[0059] The surface on the second connector 322 that connects to the inner wall surface 3211 of the first connector 321 is the first surface 3221, and the first surface 3221 is perpendicular to the inner wall surface 3211. The surface on the second connector 322 that is away from the inner wall surface 3211 of the first connector 321 and is parallel to the inner wall surface 3211 is the second surface 3222, and the second surface 3222 is also parallel to the outer wall surface 3212 of the first connector 321. The surface on the second connector 322 that connects to the inner annular surface of the first connector 321 and is parallel to the first surface 3221 is the third surface 3223, and the third surface 3223 is perpendicular to the outer wall surface 3212.

[0060] By configuring the elastic body 300 with the above structure, when the elastic body 300 is fitted onto the outer peripheral surface 212 of the insulating body 200, the inner surface 311 of the annular body 310 abuts against the outer peripheral surface 212 of the insulating body 200. The first connecting body 321 is engaged in the first connecting groove 2121, and the second connecting body 322 is engaged in the second connecting groove 2122. The distance between the two inner wall surfaces 3211 of the two first connecting bodies 321 is set to be equal to the distance between the two side walls 21211 of the two first connecting grooves 2121, so that after installation, the inner wall surfaces 3211 of the two first connecting bodies 321 abut against the two side walls 21211 respectively. The distance between the outer peripheral surface 212 of the insulating body 200 and the third inner buckling wall 21223 is set to be equal to the distance between the inner surface 311 of the annular body 310 and the inner wall surface 311 of the third inner buckling wall 21223. The distance between the side surface 311 and the first surface 3221 is equal, so that the first surface 3221 on the second connector 322 abuts against the third inner wall 21223; the distance between the second inner walls 21222 with two second connecting grooves 2122 is equal to the distance between the second surfaces 3222 of the two second connectors 322, so that the second surface 3222 on the second connector 322 abuts against the second inner wall 21222; and the distance between the first inner wall 21221 and the third inner wall 21223 with the second connecting grooves 2122 is equal to the distance between the third surface 3223 and the first surface 3221 on the second connector 322, so that the third surface 3223 on the second connector 322 abuts against the first inner wall 21221. Thus, the elastomer 300 is tightly fitted into the connecting groove in this embodiment. The cooperation between the first connector 321 and the first connecting groove 2121, and the cooperation between the second connector 322 and the second connecting groove 2122, provides a clear axial positioning for the elastomer 300. Simultaneously, the inclusion of the second connector 322 prevents excessive compression of the elastomer 300 when other components are connected to the insulating component 100, thus preventing the elastomer 300 from detaching radially from the insulating body 200. This significantly enhances the stability of the elastomer 300's coverage of the insulating body 200 and the reliability of the connection. The second surface 3222 on the second connector 322 does not necessarily abut against the second inner retaining wall 21222; that is, a gap is left between the second surface 3222 and the second inner retaining wall 21222. This is sufficient as long as the second connector 322 is properly fitted into the second connecting groove 2122, preventing the elastomer 300 from moving radially along the insulating body 200.

[0061] Similar to the aforementioned embodiments, when the elastomer 300 in this embodiment is pre-prepared separately using a high-temperature injection vulcanization molding process, and then installed and covered onto the outer peripheral surface 212 of the insulating body 200, a primer or adhesive may not be used between the contact surfaces of the insulating body 200 and the elastomer 300. Instead, the connection reliability between the insulating body 200 and the elastomer 300 can be enhanced through structural design or material design. For example, the dimensional relationship between the inner length D of the elastomer 300 and the width N of the insulating body 200 can be set such that the difference between N and D ranges from (2% to 30%) × D; or the material formulation of the elastomer 300 can be changed, as described above, and will not be repeated here.

[0062] In this embodiment, the thickness of the elastomer 300 ranges from 3mm to 10mm, preferably from 3mm to 5mm, which is consistent with the above description and will not be repeated here.

[0063] In this embodiment, when the first connector 321 is fitted into the first connecting groove 2121 and the second connector 322 is fitted into the second connecting groove 2122, and the elastic body 300 is not axially compressed, the two first connectors 321 protrude axially from the two mounting surfaces 211 of the insulating body 200, respectively, and the protrusions are of equal size. The difference between the width of the first connector 321 and the width of the first connecting groove 2121 is set to 15% to 25% of the width of the first connector 321, as described above, and will not be repeated here.

[0064] When the insulating component 100 is fixedly connected to other components, the other components may excessively compress the elastomer 300, which may cause the elastomer 300 to fall off in the radial direction away from the insulating body 200 along the insulating component 100. Due to the setting and cooperation of the second connector 322 and the second connecting groove 2122, the second connector 322 can be firmly locked in the second connecting groove 2122, which can prevent the elastomer 300 from falling off in the radial direction of the insulating body 200, thereby greatly enhancing the coverage stability and connection reliability of the elastomer 300 on the insulating body 200.

[0065] Combination Figure 10 As shown, the insulating component 100 is fixedly connected to other components at both ends via flanges 400. Two flanges 400 are provided, each fixedly connected to one of the two mounting surfaces 211 of the insulating body 200, and the axial direction of the flanges 400 coincides with the axial direction of the insulating component 100. Each flange 400 includes a flange cylinder 410 and a flange plate 420. The flange cylinder 410 has a hollow columnar structure, and the flange plate 420 extends outward along the outer circumference of one end of the flange cylinder 410 to form an annular disc structure, providing an interface for connection and fixation with the insulating component 100.

[0066] In one embodiment, when the elastomer 300 has an annular structure, the outer diameter of the flange 420 is equal to the outer diameter of the insulating body 200. When the flange 400 is installed and fixed on the mounting surface 211 of the insulating body 200, the outer peripheral surface of the flange 420 is flush with the outer peripheral surface 212 of the insulating body 200. This structural design allows the elastomer 300 to completely cover the entire outer peripheral surface 212 of the insulating body 200 and the connection between the insulating body 200 and the flange 400 after the two flanges 400 are connected and fixed to the insulating component 100, thus acting as a protective layer to prevent external moisture, impurities, etc. from entering the gap at the connection and affecting the seal between the insulating component 100 and the flange.

[0067] In another embodiment, when the elastomer 300 has a structure including an annular body 310 and a first connecting body 321, or when the elastomer 300 has a structure including an annular body 310, a first connecting body 321, and a second connecting body 322, the outer diameter of the flange 420 is set to be equal to the outer diameter of the annular body 310. When the flange 400 is installed and fixed on the end face of the insulating component 100, the outer peripheral surface of the flange 420 is flush with the outer peripheral surface of the elastomer 300. This structural design allows the two flanges 400 to form a smooth and compact complete structure after being connected and fixed to the insulating component 100. This not only improves the aesthetics of the product, but also allows the elastomer 300 to completely cover the entire outer peripheral surface 212 of the insulating body 200 and fill the connection between the insulating body 200 and the flange 400, acting as a protective layer to prevent external moisture, impurities, etc. from entering the gap at the connection and affecting the seal between the insulating component 100 and the flange.

[0068] The flange 420 is provided with a plurality of second mounting holes 421, which penetrate the flange 420 and are parallel to the axial direction of the flange 400. The plurality of second mounting holes 421 are located in the edge region of the flange 420 and are evenly distributed along the circumference of the flange 400. The number of second mounting holes 421 is the same as that of the first mounting holes 201, and they correspond to each other. By installing fasteners in the first mounting holes 201 and the second mounting holes 421, the flange 400 can be securely fixed to the mounting surface 211 of the insulating component 100.

[0069] Flange 400 is made of metal, preferably aluminum, to balance strength and lightweight requirements. Flange cylinder 410 and flange 420 are formed by integral casting to ensure structural integrity and strength; of course, they can also be formed separately and then connected into a whole by welding or other methods according to actual processing and assembly requirements.

[0070] Preferably, the elastomer 300 contains a specific colorant, which gives it a bright and uniform appearance color, providing an intuitive and quick visual identification method. It is especially suitable for distinguishing different types of insulating parts with highly similar appearance structures that are difficult to distinguish by outline or shape alone, thereby effectively avoiding confusion during assembly or maintenance.

[0071] In one embodiment, the insulating component 100 is described as a basin-type insulator: when the insulating component 100 is a basin-type insulator 100 with vent holes, it is defined as an open basin-type insulator, and the elastomer 300 can be configured as green; when the insulating component 100 is a basin-type insulator 100 without vent holes, it is defined as a closed basin-type insulator, and the elastomer 300 can be configured as red. Through this color-coding method, operators can quickly and accurately distinguish and confirm the type of the insulating component 100 by visual inspection alone, without adding any extra parts or complex procedures, greatly facilitating product classification and storage, logistics management, and on-site installation and maintenance.

[0072] It should be understood that in other embodiments, the color of the elastomer is not limited to the red and green colors mentioned above, and can be set to any other color according to actual needs, as long as it can effectively distinguish and identify different functional types of insulating components, and no restrictions are imposed here.

[0073] The insulating component 100 provided in this application is widely applicable to various electrical equipment components such as basin insulators, post insulators, disc insulators, cable terminal bushings, and junction boxes. These electrical equipment include gas-insulated metal-enclosed switchgear (GIS), gas-insulated metal-enclosed transmission lines (GIL), hybrid combined switchgear (H-GIS), and generator circuit breakers (GCB). Specifically, the electrical equipment includes at least two equipment housings, the aforementioned insulating component 100, and a conductor. The insulating component 100 is sandwiched between two adjacent equipment housings, and the two mounting surfaces 211 of the connecting portion 210 are respectively abutted and fixed to the opposite sides of the two adjacent equipment housings. The conductor passes through the equipment housing and is fixed to the conductor mounting portion 220. When the insulating component 100 is installed on two adjacent equipment housings, the elastic body 300 is compressed during the installation process, and the elastic deformation fills the gap between the opposite two sides of the two adjacent equipment housings and the two mounting surfaces 211 of the connecting part 210, so that the two mounting surfaces 211 are tightly fitted with the sides of the equipment housing. This not only achieves reliable electrical insulation, but also has multiple functions such as sealing, anti-loosening, and buffering, which significantly improves the operational reliability of the equipment.

[0074] All the aforementioned insulating components share a common characteristic: their core insulation structure is an epoxy resin cast insulating body, and the outer insulating surface of this body is directly exposed to complex external environments (such as humidity, dirt, and ultraviolet radiation) during use. Given that the elastomeric coating protection solution provided in this application is designed specifically for the protection needs of such exposed surfaces, it can be directly and effectively applied to these products, providing them with enhanced environmental protection, sealing performance, and mechanical protection, thereby improving the long-term operational reliability of the equipment under harsh operating conditions.

[0075] The beneficial effects of this application are: it provides a universal and reliable surface protection solution for various insulating components exposed to harsh external environments. The insulating component provided by this application includes an insulating body and an elastomer. The elastomer tightly covers the entire outer surface of the insulating body exposed to the external environment, forming an effective protective layer. The elastomer can provide effective protection at the connection between the insulating component and other components. In a more preferred embodiment, through the fixed connection between the insulating component and other components, the axial clamping force applied to the elastomer causes it to deform, thereby forming a reliable seal between the insulating component and other components. After assembly, the entire surface of the insulating body is completely enclosed within the elastomer and other components, constructing a fully enclosed protective system that achieves waterproofing, dustproofing, and UV protection. Furthermore, due to the low cost of elastomer materials, this solution significantly reduces manufacturing costs while effectively preventing moisture absorption and aging of the insulating component during long-term operation, extending its service life and operational reliability.

[0076] In addition, specific colorants are added to the elastomer to give it different colors, which can be used to intuitively and quickly distinguish different types of insulating parts. It is especially suitable for distinguishing products with similar appearance and structure that are difficult to distinguish by outline alone, thus greatly facilitating product classification, storage and on-site management.

[0077] The insulating component of this application can be used not only in the production and application of new products, but also in the renovation of old products. For example, the old insulating component on electrical equipment can be removed and replaced with the insulating component 100 of this application, thereby further improving the long-term operational reliability of the electrical equipment.

[0078] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An insulating component, characterized in that, The device includes an insulating body and an elastic body sleeved on the insulating body. The insulating body includes a connecting portion and a conductor mounting portion. The connecting portion is a hollow columnar structure and is arranged around the conductor mounting portion. The connecting portion includes two mounting surfaces arranged opposite each other along the axial direction of the connecting portion and an outer peripheral surface connecting the two mounting surfaces. The elastic body tightly covers the outer peripheral surface of the connecting portion.

2. The insulating component as described in claim 1, characterized in that, The insulating body is integrally cast using epoxy resin.

3. The insulating component as described in claim 1, characterized in that, The elastomer is made of any one of the following materials: high-temperature vulcanized silicone rubber, room-temperature vulcanized silicone rubber, liquid silicone rubber, fluororubber, fluorosilicone rubber, EPDM rubber, nitrile rubber, and butyl rubber.

4. The insulating component as described in claim 1, characterized in that, The elastic body has a ring-shaped structure and is sleeved and fixed on the outer peripheral surface of the connecting part. The width of the elastic body is greater than the width of the insulating body, so that the two ends of the elastic body protrude from the two mounting surfaces of the connecting part.

5. The insulating component as described in claim 1, characterized in that, The outer peripheral surface of the connecting part is provided with connecting grooves at both opposite ends along the axial direction of the connecting part. The connecting grooves include first connecting grooves, which are continuously opened along the entire circumference of the connecting part. The elastic body includes an annular body and two first connecting bodies respectively disposed at both ends of the annular body along the axial direction of the elastic body. The inner side of the annular body abuts against the outer peripheral surface of the connecting part, and the two first connecting bodies are respectively embedded and locked in the two first connecting grooves.

6. The insulating component as described in claim 5, characterized in that, The first connecting groove includes a side wall and a bottom wall. The side wall extends radially toward the interior of the insulating member from the end edge of the outer peripheral surface along the connecting portion. The bottom wall extends axially toward the interior of the insulating member from the outer edge of the mounting surface along the connecting portion. The side wall and the bottom wall are perpendicular to each other.

7. The insulating member as described in claim 6, characterized in that, The first connector is a ring structure. The outer ring surface of the first connector is fitted and connected to the inner side surface of the ring body. The inner wall surfaces of the two first connectors abut against the two side walls, and the inner ring surfaces of the two first connectors abut against the two bottom walls.

8. The insulating component as described in claim 6, characterized in that, The connecting groove further includes a second connecting groove, which extends from the inner edge of the side wall away from the outer peripheral surface along the axial direction of the connecting portion toward the interior of the insulating member. The second connecting groove is continuously formed along the entire circumference of the connecting portion. The second connecting groove includes a first inner buckle wall, a second inner buckle wall, and a third inner buckle wall that are interconnected. The first inner buckle wall extends from the end edge of the bottom wall away from the mounting surface along the axial direction of the connecting portion toward the interior of the insulating member, such that the extension direction of the first inner buckle wall coincides with that of the bottom wall. The second inner buckle wall extends from the end edge of the first inner buckle wall away from the mounting surface along the radial direction of the connecting portion toward the direction close to the outer peripheral surface. The third inner buckle wall extends from the outer edge of the second inner buckle wall away from the first inner buckle wall along the axial direction of the connecting portion toward the direction close to the mounting surface, until it extends to the side wall.

9. The insulating component as described in claim 8, characterized in that, The elastomer further includes two second connectors. The second connectors extend from the inner wall surface of the first connector near the inner annular surface of the first connector along the axial direction of the elastomer toward the interior of the elastomer and protrude from the first connector. The second connectors are perpendicular to the first connector.

10. The insulating element as claimed in claim 9, characterized in that, The second connector is engaged in the second connector groove, the first surface of the second connector abuts against the third inner buckle wall, the second surface of the second connector abuts against the second inner buckle wall, and the third surface of the second connector abuts against the first inner buckle wall.

11. The insulating element as claimed in claim 1, characterized in that, The inner length of the elastic body is less than the width of the insulating body, and the difference between the width of the insulating body and the inner length of the elastic body is 2% to 30% of the inner length of the elastic body.

12. The insulating member according to any one of claims 5 to 10, characterized in that, The width of the first connector is greater than the width of the first connecting groove, and the difference between the width of the first connector and the width of the first connecting groove is 15% to 25% of the width of the first connector.

13. The insulating element as claimed in claim 1, characterized in that, The thickness of the elastomer ranges from 3 mm to 10 mm.

14. An electrical device, characterized in that, include: At least two device housings; The insulating component as described in claim 1 is sandwiched between two adjacent device housings, and the two mounting surfaces of the connecting portion are respectively abutted and fixed to the opposite sides of the two adjacent device housings; A conductor passes through the device housing and is fixed to the conductor mounting part.

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