An insulating shield with good freeze resistance

Abstract

The utility model relates to power equipment protection technical field discloses an insulating shield with good anti -freezing, including main part, and the main part adopts multilayer composite structure, and from inside to outside is in turn insulating layer, waterproof barrier layer, buffer layer and hydrophobic wear -resisting protective layer, insulating layer is ethylene -propylene rubber material, and the voltage insulation and isolation conductor effect, waterproof barrier layer adopts high barrier polymer film, can prevent internal icing, frost heaving and protect insulating layer, buffer layer is flexible aerogel felt, can absorb external impact energy, hydrophobic wear -resisting protective layer is silicone rubber, and the surface has super -hydrophobic nano coating, can resist physical impact, wear and tear and ultraviolet radiation, besides, the protective layer is equipped with warning mark and the light -reflecting lattice, is used for marking information and forming warning profile respectively, the shield anti -freezing is excellent, and the comprehensive protection performance is strong, and the scope of application is wide.

Description

Technical Field

[0001] This utility model relates to the field of power equipment protection technology, specifically to an insulating cover with good antifreeze properties. Background Technology

[0002] In the field of power equipment protection, especially the protection of exposed conductors such as outdoor high-voltage transmission lines, substation equipment and power distribution devices, the cold, humid and rainy / snowy environment places stringent requirements on protective devices.

[0003] Existing insulating covers have significant shortcomings in antifreeze performance. Most are unable to effectively prevent moisture penetration, and are prone to internal freezing and frost heave in low-temperature environments. This not only affects the insulation performance of the cover but also damages its structure, making it unsuitable for long-term use in cold environments. Furthermore, the overall protective capabilities of existing covers are inadequate. The voltage isolation safety of the inner insulation material is not stable enough, and the outer protective structure is insufficient in resisting external impacts, abrasion, and UV aging, resulting in a short service life. In addition, some covers lack effective warning signs and outline designs, leading to low visibility at night and in complex environments, increasing the risk of accidental contact. Moreover, the structural design of existing covers cannot simultaneously accommodate multiple functions such as insulation, waterproofing, cushioning, and abrasion resistance, limiting their applicability and failing to meet the protection needs of various outdoor power transmission and transformation equipment under different climatic conditions.

[0004] Therefore, there is an urgent need for an insulating cover that has good antifreeze properties, excellent comprehensive protection performance, high safety and wide applicability. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an insulating cover with good antifreeze properties.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an insulating cover with good antifreeze properties, comprising a main body, the main body including an insulating layer, the insulating layer being disposed in the inner layer, the upper surface of the insulating layer being bonded to the lower surface of a waterproof barrier layer by a special epoxy adhesive, the upper surface of the waterproof barrier layer being hot-pressed to the lower surface of a buffer layer, the upper surface of the buffer layer being hot-melt bonded to the lower surface of a hydrophobic and wear-resistant protective layer, a warning sign being provided at one corner of the upper surface of the hydrophobic and wear-resistant protective layer by an insulating rivet, and the lower surface of a reflective lattice being bonded to the upper surface of the hydrophobic and wear-resistant protective layer away from the warning sign by epoxy resin adhesive.

[0007] As a further description of the above technical solution:

[0008] The insulating layer is made of ethylene propylene rubber and is used to provide voltage insulation and isolate the protected conductor.

[0009] As a further description of the above technical solution:

[0010] The waterproof barrier layer is made of a high-barrier polymer film, such as an ethylene-vinyl alcohol copolymer film or a polyvinylidene chloride film. The waterproof barrier layer is used to prevent internal icing, frost heave and protect the insulation layer.

[0011] As a further description of the above technical solution:

[0012] The buffer layer uses a flexible aerogel felt, such as a silica aerogel composite nonwoven fabric or a fiberglass felt, and is used to absorb external impact energy and protect the internal structure.

[0013] As a further description of the above technical solution:

[0014] The hydrophobic and wear-resistant protective layer is made of silicone rubber and is used to resist external physical impacts, wear, and ultraviolet radiation.

[0015] As a further description of the above technical solution:

[0016] The upper surface of the hydrophobic and wear-resistant protective layer is also coated with a superhydrophobic nano-coating. The superhydrophobic nano-coating uses an organosilicon-modified nanoparticle coating to reduce the surface wetting area and liquid retention time.

[0017] As a further description of the above technical solution:

[0018] The reflective lattice is used to form a warning outline, and the warning mark is used to indicate the warning mark and indicate the information of the protected conductor.

[0019] This utility model has the following beneficial effects:

[0020] 1. The waterproof barrier layer, composed of a high-barrier polymer film, effectively prevents water penetration, avoids internal freezing and frost damage. Combined with the superhydrophobic nano-coating on the surface of the hydrophobic and wear-resistant protective layer, it reduces liquid retention, lowers the probability of freezing, and is suitable for long-term use in cold environments.

[0021] The inner ethylene propylene rubber insulation layer ensures voltage isolation safety, while the outer silicone rubber protective layer and the middle flexible aerogel felt buffer layer work together to resist external impacts, abrasion, and UV aging, extending the service life of the protective cover.

[0022] Second, the reflective lattice forms a conspicuous warning outline, and the warning label clearly indicates the conductor information, improving the visibility at night and in complex environments, reducing the risk of accidental contact. The multi-layer composite structure design takes into account multiple functions such as insulation, waterproofing, buffering, and wear resistance, and can be widely used in various outdoor power transmission and transformation equipment to adapt to different climatic conditions. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0024] Figure 2 This is an exploded view of the overall structure of this utility model;

[0025] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the material structure of this utility model.

[0027] Legend:

[0028] 1. Main body; 2. Insulation layer; 3. Waterproof barrier layer; 4. Buffer layer; 5. Hydrophobic and wear-resistant protective layer; 6. Reflective lattice; 7. Warning sign. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Example 1:

[0033] like Figures 1 to 4 As shown, this embodiment provides an insulating cover with good antifreeze properties, including a main body 1. The main body 1 includes an insulating layer 2, which is disposed in the inner layer. The upper surface of the insulating layer 2 is bonded to the lower surface of a waterproof barrier layer 3 by a special epoxy adhesive. The upper surface of the waterproof barrier layer 3 is connected to the lower surface of a buffer layer 4 by hot pressing. The upper surface of the buffer layer 4 is connected to the lower surface of a hydrophobic and wear-resistant protective layer 5 by hot-melt bonding. A warning sign 7 is provided on one corner of the upper surface of the hydrophobic and wear-resistant protective layer 5 by an insulating rivet. The lower surface of a reflective lattice 6 is bonded to the upper surface of the hydrophobic and wear-resistant protective layer 5 away from the warning sign 7 by epoxy resin adhesive.

[0034] In this embodiment, the insulating layer 2, the waterproof barrier layer 3, the buffer layer 4, the hydrophobic and wear-resistant protective layer 5, the reflective lattice 6, and the warning sign 7 constitute an insulating cover with good antifreeze properties according to this application.

[0035] It should also be noted that the insulating cover in this application can be used for any application that requires conductor insulation, waterproofing, cushioning, and abrasion resistance; this application does not limit the specific type of conductor.

[0036] Specifically, the insulating layer 2 is made of ethylene propylene rubber and is used to provide voltage insulation and isolate the protected conductor.

[0037] In this embodiment, the ethylene propylene rubber material used in the insulation layer 2 has excellent electrical properties, weather resistance and low temperature resistance. The material itself can maintain excellent insulation performance and flexibility at low temperatures without becoming brittle and cracking. It can provide the required high voltage insulation level, isolate the protected conductor or equipment, and block current conduction through its own insulation properties, provide voltage insulation, isolate the protected conductor, and prevent leakage.

[0038] Specifically, the waterproof barrier layer 3 is made of a high-barrier polymer film, such as an ethylene-vinyl alcohol copolymer film or a polyvinylidene chloride film. The waterproof barrier layer 3 is used to prevent internal icing, frost heave and protect the insulation layer 2.

[0039] As a preferred embodiment, the high-barrier polymer film of the waterproof barrier layer 3 can be one of multilayer co-extruded EVOH (ethylene-vinyl alcohol copolymer) film or PVDC (polyvinylidene chloride) film. Although its barrier properties are not as good as metal foil, it is more flexible, allowing the main body 1 to form the shape of the conductor or equipment being protected. The waterproof barrier layer 3 can prevent liquid water and gaseous water vapor (water vapor) from penetrating into the internal insulation layer and the protected equipment. The waterproof barrier layer 3 uses the material's density to block water penetration, prevent internal freezing and frost heave, and protect the insulation layer 2.

[0040] Example 2:

[0041] A buffer layer 4 is provided based on Example 1.

[0042] Specifically, the buffer layer 4 uses a flexible aerogel felt, such as a silica aerogel composite nonwoven fabric or a fiberglass felt. The buffer layer 4 is used to absorb external impact energy and protect the internal structure.

[0043] In this embodiment, the flexible aerogel felt used in the buffer layer 4 is made of either silica aerogel composite nonwoven fabric or fiberglass felt. The material has extremely low thermal conductivity and is ultra-light and flexible, allowing the main body 1 to form the shape of the protected conductor or equipment. This significantly reduces the conduction of external low temperature to the protected equipment or conductor, maintains a relatively high internal temperature, slows down internal condensation or heat loss from the equipment itself, indirectly prevents freezing, and prevents the equipment from losing heat too quickly. The buffer layer 4 absorbs external impact energy, protecting the internal structure and insulation layer. The buffer layer 4 absorbs impact energy through its internal porous structure, protecting the internal structure from damage.

[0044] Example 3:

[0045] A hydrophobic and wear-resistant protective layer 5 is provided based on Example 2.

[0046] Specifically, the hydrophobic and wear-resistant protective layer 5 is made of silicone rubber and is used to resist external physical impacts, wear and ultraviolet radiation.

[0047] With this design, the superhydrophobic wear-resistant protective layer 5 is made of high-strength, weather-resistant modified silicone rubber, which has good low-temperature resistance and weather resistance. It can resist external physical impact, wear, ultraviolet radiation and ozone erosion. The hydrophobic wear-resistant protective layer 5 resists external forces with its own physical properties, resists external physical impact, wear and ultraviolet radiation, and protects the inner structure.

[0048] Specifically, the upper surface of the hydrophobic and wear-resistant protective layer 5 is also coated with a superhydrophobic nano-coating. The superhydrophobic nano-coating uses an organosilicon-modified nanoparticle coating to reduce the surface wetting area and liquid retention time.

[0049] Among them, the superhydrophobic nano-coating on the hydrophobic and wear-resistant protective layer 5 adopts an organosilicon-modified nanoparticle coating. The organosilicon-modified nanoparticle coating is dispersed in low surface energy silicone resin to form a micro-nano rough structure, which makes water droplets (including condensate) have a high contact angle and roll off easily. This significantly reduces the surface wetting area and residence time, greatly reduces the probability of freezing and the ice layer coverage, and can also reduce the adhesion of pollutants such as dust and salt. The pollutants roll off with the water droplets, directly inhibiting freezing by reducing water retention. The superhydrophobic nano-coating reduces liquid adhesion through the surface microstructure, reduces the surface wetting area and liquid residence time, and enhances anti-fouling and waterproof properties.

[0050] Specifically, the reflective lattice 6 is used to form a warning outline, and the warning mark 7 is used to indicate the warning mark and indicate the information of the protected conductor.

[0051] In this embodiment, the reflective lattice 6 is strip-shaped and distributed along the edge of the hydrophobic and wear-resistant protective layer 5. The warning sign 7 is rectangular and printed with text and symbols. The reflective lattice 6 reflects light, the warning sign 7 displays information, the reflective lattice 6 forms a warning outline, and the warning sign 7 indicates the warning information and the information of the protected conductor, thereby improving the recognizability.

[0052] In actual use, the main body 1 is first tightly attached to the protected equipment, so that the shape of the main body 1 is consistent with the equipment to reduce air gaps. Then, the inner ethylene propylene rubber insulation layer 2 serves as the core, using its excellent insulation properties to directly isolate the protected conductor from the external environment, block the voltage conduction path, and avoid electrical safety risks such as leakage and short circuit. Subsequently, the waterproof barrier layer 3 of the high-barrier polymer film is tightly bonded to the insulation layer 2 through a special epoxy adhesive, forming a tight barrier due to its extremely low gas and moisture permeability.

[0053] The waterproof barrier layer 3 prevents external moisture and humidity from penetrating the interior, preventing the insulation layer 2 from losing its insulation performance due to moisture. On the other hand, it avoids the accumulation of condensate that may occur inside, and resists freezing and frost heave in low-temperature environments, protecting the structure of the insulation layer 2 from damage.

[0054] Subsequently, the buffer layer 4 of the flexible aerogel felt is connected to the waterproof barrier layer 3 by hot pressing. Utilizing its porous, lightweight and highly elastic properties, it can absorb and disperse impact energy through its own deformation when subjected to external compression, collision and other physical impacts, reducing the direct impact force on the internal insulation layer 2 and conductor, and playing the role of buffering and shock absorption and protecting the integrity of the internal structure.

[0055] At this point, the hydrophobic and wear-resistant protective layer 5 made of silicone rubber is combined with the buffer layer 4 through hot melt composite. It has excellent wear resistance, weather resistance and UV resistance, directly resisting aging damage caused by external friction, scratches and sunlight. At the same time, the superhydrophobic nano-coating (organosilicon modified nanoparticle coating) on ​​the surface reduces the liquid wetting area and residence time, allowing rainwater, oil and other liquids to slide off quickly, further reducing the risk of water penetration and reducing the erosion of the protective layer by stains.

[0056] Furthermore, the reflective lattice 6 set on the upper surface of the hydrophobic and wear-resistant protective layer 5 is fixed to the surface of the protective layer with epoxy resin. Under light, it can form a clear warning outline, improve the visibility of the structure in low light or nighttime environments, and remind people around to pay attention and avoid it. The warning sign 7 is fixed with insulating rivets, clearly indicating the warning information and the parameters of the protected conductor (such as voltage level, conductor type, etc.), which plays a role in clear warning, auxiliary identification and management, and avoids misoperation or accidental contact.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An insulating cover with good antifreeze properties, characterized in that: The system includes a main body (1), which includes an insulating layer (2). The insulating layer (2) is disposed in the inner layer. The upper surface of the insulating layer (2) is bonded to the lower surface of the waterproof barrier layer (3) by a special epoxy adhesive. The upper surface of the waterproof barrier layer (3) is connected to the lower surface of the buffer layer (4) by hot pressing. The upper surface of the buffer layer (4) is connected to the lower surface of the hydrophobic and wear-resistant protective layer (5) by hot melt composite bonding. A warning sign (7) is provided on one corner of the upper surface of the hydrophobic and wear-resistant protective layer (5) by an insulating rivet. The lower surface of the reflective lattice (6) is bonded to the upper surface of the hydrophobic and wear-resistant protective layer (5) away from the warning sign (7) by epoxy resin adhesive.

2. The insulating cover with good antifreeze properties according to claim 1, characterized in that: The insulating layer (2) is made of ethylene propylene rubber and is used to provide voltage insulation and isolate the protected conductor.

3. The insulating cover with good antifreeze properties according to claim 2, characterized in that: The waterproof barrier layer (3) is made of a high-barrier polymer film, and the waterproof barrier layer (3) is used to prevent internal icing, frost heave and protect the insulation layer (2).

4. The insulating cover with good antifreeze properties according to claim 3, characterized in that: The buffer layer (4) uses a flexible aerogel felt, which is used to absorb external impact energy and protect the internal structure.

5. The insulating cover with good antifreeze properties according to claim 4, characterized in that: The hydrophobic and wear-resistant protective layer (5) is made of silicone rubber and is used to resist external physical impact, wear and ultraviolet radiation.

6. The insulating cover with good antifreeze properties according to claim 5, characterized in that: The upper surface of the hydrophobic and wear-resistant protective layer (5) is also coated with a superhydrophobic nano-coating. The superhydrophobic nano-coating is made of silicone-modified nanoparticles to reduce the surface wetting area and liquid retention time.

7. An insulating cover with good antifreeze properties according to claim 6, characterized in that: The reflective lattice (6) is used to form a warning outline, and the warning mark (7) is used to indicate the warning mark and indicate the information of the protected conductor.

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