Heat-insulating, flame-retardant and fireproof car cover

Abstract

The utility model provides a heat-insulating flame-retardant fireproof car cover, which belongs to the field of car covers and comprises a car cover body made of various materials, and a composite layer used for improving the heat-insulating flame-retardant performance of the car cover body is arranged in the car cover body. The outer high-temperature-resistant metal composite woven layer reflects part of heat radiation, the aerogel composite heat insulation layer (the heat conductivity coefficient is 0.012 W / m.K) blocks heat conduction, the aluminum foil reflecting layer (the reflectivity is 95%) further weakens the heat radiation, the flexible carbon fiber lining layer reduces the temperature of the inner surface through radiation heat dissipation, the temperature of the surface of an automobile body can be reduced by more than 60%, and the service life of the automobile body is prolonged. Damage of high temperature to vehicle paint, tires and internal lines is avoided, and rescue or emergency treatment time is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of car covers, specifically to a heat-insulating, flame-retardant, and fire-resistant car cover. Background Technology

[0002] In scenarios involving car fires, thermal runaway in industrial equipment, and high-temperature outdoor operations, traditional protective materials, due to their low thermal insulation efficiency, poor flame retardancy, or insufficient mechanical strength, are unable to effectively resist flames, high-temperature radiation, and impacts from sharp objects, leading to protective failure or secondary damage. Furthermore, existing car covers mostly employ single-layer or double-layer structures, offering limited functionality and failing to simultaneously meet requirements for tear resistance, thermal insulation, sealing, and environmental friendliness, making them unsuitable for long-term protection in complex environments. Therefore, a thermally insulated, flame-retardant, and fire-resistant car cover is proposed. Utility Model Content

[0003] The purpose of this utility model is to address the problems of existing traditional protective materials having low heat insulation efficiency, poor flame retardant performance, or insufficient mechanical strength. They mostly adopt single-layer or double-layer structures, have limited functions, and cannot meet the requirements of tear resistance, heat insulation, sealing, and environmental protection.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0005] The present invention is as follows: a heat-insulating and flame-retardant fireproof car cover, comprising a car cover body, the car cover body being made of a variety of materials, and the interior of the car cover body containing a composite layer for improving the heat insulation and flame-retardant performance of the car cover body;

[0006] The composite layer includes a high-temperature resistant metal composite braided layer, an aerogel composite heat insulation layer, a high-strength aramid fiber reinforcement layer, a silicone coating sealing layer, a flexible carbon fiber inner lining layer, and an aluminum foil reflective layer, arranged sequentially from the outside to the inside.

[0007] As a preferred technical solution of this utility model, the high-temperature resistant metal composite braided layer is made of stainless steel wire and ceramic fiber mixed and woven together, and is sewn with high-temperature fire-resistant thread, serving as the outermost layer of the car cover body to enhance the overall impact resistance.

[0008] As a preferred technical solution of this utility model, the aerogel composite heat insulation layer is made of silica aerogel and glass fiber composite material, and is bonded to a high-temperature resistant silicone adhesive and a high-temperature resistant metal composite braided layer. The edges are reinforced with metal rivets to prevent the aerogel from falling off.

[0009] As a preferred technical solution of this utility model, the high-strength aramid fiber reinforcement layer is made of Kevlar fiber woven fabric, which is combined with the aerogel composite insulation layer by ultrasonic spot welding to form a dot matrix reinforcement structure, thereby reducing the thermal bridging effect.

[0010] As a preferred technical solution of this utility model, the silicone coating sealing layer is made of flame-retardant silicone rubber plus nano-zirconia filler, and is combined with a high-strength aramid fiber reinforcement layer through hot pressing process, and the edges are sealed by laser welding to form an airtight structure.

[0011] As a preferred technical solution of this utility model, the flexible carbon fiber lining layer is made of carbon fiber woven fabric and graphite coating composite, and is bonded to a silicone coating sealing layer by conductive adhesive, with Kevlar fiber embedded at the edges to prevent carbon fiber breakage.

[0012] As a preferred technical solution of this utility model, the aluminum foil reflective layer is made of vacuum-metallized polyester film as the innermost layer, and is composited with a flexible carbon fiber inner lining layer by low-temperature hot melt adhesive. The edges are fixed with pressure-sensitive tape to ensure that it will not fall off during long-term use.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The outer high-temperature resistant metal composite braided layer reflects some heat radiation, the aerogel composite heat insulation layer (thermal conductivity 0.012 W / m·K) blocks heat conduction, the aluminum foil reflective layer (reflectivity 95%) further weakens heat radiation, and the flexible carbon fiber inner lining layer reduces the inner surface temperature through radiative heat dissipation, which can reduce the surface temperature of the vehicle body by more than 60%, avoid damage to the paint, tires and internal wiring caused by high temperature, and extend the rescue or emergency handling time;

[0015] 2. The high-temperature resistant metal composite braided layer and the high-strength aramid fiber reinforcement layer provide a physical barrier to delay flame penetration. The silicone coating sealing layer and the flexible carbon fiber inner lining layer do not produce molten droplets or toxic gases at high temperatures. The aerogel composite heat insulation layer blocks oxygen penetration and inhibits reignition. The outer stainless steel wire and Kevlar fiber layer form a double-layer puncture-resistant system with a tensile strength of 3000 N / 5cm. Edge metal rivet reinforcement and laser welding sealing prevent interlayer peeling. It can resist splashing sparks, sharp object punctures and strong wind impacts, ensuring that the car cover maintains its integrity in complex fire scenes. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the heat-insulating, flame-retardant, and fire-resistant train cover provided by this utility model;

[0017] Figure 2 A cross-sectional structural diagram of the heat-insulating, flame-retardant, and fire-resistant train cover provided by this utility model;

[0018] Figure 3 A partial structural schematic diagram of the heat-insulating, flame-retardant, and fire-resistant train cover provided by this utility model;

[0019] Figure 4 The heat-insulating, flame-retardant, and train-proof suit provided by this utility model Figure 3A schematic diagram of the partial structure at point A in the middle.

[0020] The diagram shows: 1. Car cover body; 2. Composite layer; 201. High-temperature resistant metal composite woven layer; 202. Aerogel composite heat insulation layer; 203. High-strength aramid fiber reinforcement layer; 204. Silicone coating sealing layer; 205. Flexible carbon fiber inner lining layer; 206. Aluminum foil reflective layer. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0022] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] like Figure 4 As shown, this embodiment proposes a heat-insulating, flame-retardant, fire-resistant train cover, including a cover body 1, which is made of a variety of materials, and the interior of the cover body 1 contains a composite layer 2 for improving the heat insulation and flame-retardant performance of the cover body 1.

[0026] The composite layer 2 includes a high-temperature resistant metal composite braided layer 201, an aerogel composite heat insulation layer 202, a high-strength aramid fiber reinforcement layer 203, a silicone coating sealing layer 204, a flexible carbon fiber inner lining layer 205, and an aluminum foil reflective layer 206, arranged sequentially from the outside to the inside.

[0027] like Figure 4As shown, in a preferred embodiment, based on the above method, the high-temperature resistant metal composite braided layer 201 is further made of stainless steel wire and ceramic fiber mixed and woven together, and sewn with high-temperature fire-resistant thread. As the outermost layer of the car cover body 1, it enhances the overall impact resistance, withstands high temperatures up to 1200℃, and can directly resist flame burning. The metal wire provides tear resistance and puncture resistance, while the ceramic fiber enhances heat insulation. The surface is smooth, reducing flame adhesion and heat radiation absorption.

[0028] like Figure 4 As shown, in a preferred embodiment, based on the above method, the aerogel composite insulation layer 202 is further made of silica aerogel and glass fiber composite material, and is bonded to the high-temperature resistant metal composite braided layer 201 with high-temperature resistant silicone adhesive. The edges are reinforced with metal rivets to prevent the aerogel from falling off. The thermal conductivity is as low as 0.012 W / m·K, which effectively blocks heat conduction. The porosity is over 95%, which blocks heat convection and reduces heat transfer efficiency. It is flexible and foldable, and can be adapted to cover the curved surface of the vehicle body.

[0029] like Figure 4 As shown, in a preferred embodiment, based on the above method, the high-strength aramid fiber reinforcing layer 203 is further made of Kevlar fiber woven fabric, which is combined with the aerogel composite heat insulation layer 202 by ultrasonic spot welding to form a dot matrix reinforcing structure, reducing the thermal bridge effect. The tensile strength is 5 times that of steel, improving the tear resistance of the car cover, making it flame retardant and non-self-igniting, and it does not produce molten droplets at high temperatures. The lightweight design makes it easy to unfold and store quickly.

[0030] like Figure 4 As shown, in a preferred embodiment, based on the above method, the silicone coating sealing layer 204 is further made of flame-retardant silicone rubber with nano-zirconia filler, and is combined with the high-strength aramid fiber reinforcement layer 203 through a hot pressing process. The edges are sealed by laser welding to form an airtight structure with a dense surface that isolates oxygen and smoke penetration, inhibits fire reignition, withstands high temperatures up to 600°C, is anti-aging, does not deform after long-term exposure to high temperatures, and has an anti-slip texture design to enhance the friction between the car cover and the car body.

[0031] like Figure 4 As shown, in a preferred embodiment, based on the above method, the flexible carbon fiber inner lining 205 is further made of carbon fiber woven fabric with graphite coating, and is bonded to the silicone coating sealing layer 204 by conductive adhesive. Kevlar fiber is embedded at the edges to prevent carbon fiber breakage. It does not produce toxic gases at high temperatures, making it environmentally friendly and safe. The graphite coating enhances the radiative heat dissipation capacity, reduces the temperature of the inner surface of the car cover, and is soft and skin-friendly, allowing direct contact with the car body paint surface without scratches.

[0032] like Figure 4As shown, in a preferred embodiment, based on the above method, the aluminum foil reflective layer 206 is further made of vacuum-metallized polyester film as the innermost layer, and is composited with the flexible carbon fiber inner lining layer 205 by low-temperature hot melt adhesive. The edges are fixed with pressure-sensitive tape to ensure that it will not fall off during long-term use. The reflectivity is as high as 95%, which effectively blocks heat radiation. It is lightweight and thin, does not increase the overall weight of the car cover, is waterproof and oil-proof, and is easy to clean and maintain.

[0033] Specifically, in use, this heat-insulating, flame-retardant, and fire-resistant train cover features: a smooth 201 high-temperature resistant metal composite woven layer that reflects approximately 40% of short-wave infrared heat radiation, reducing heat absorption; ceramic fibers filling the metal mesh pores that prevent flames from directly contacting the underlying material, while also providing tear and puncture resistance; over 95% of the aerogel's interior is composed of nanoscale pores, preventing air convection and significantly reducing heat conduction, thus enhancing the aerogel's mechanical strength and preventing brittle fracture, while further blocking heat conduction; and Kevlar fiber molecular chains with a rigid rod-like structure and a tensile strength of 3.6. GPa, resisting splashing sparks, punctures from sharp objects, or impacts from strong winds. The fibers are carbonized at high temperatures to form an insulating layer, without producing molten droplets or toxic gases, thus avoiding secondary damage. The dense silicone layer prevents oxygen from penetrating into the flame area, inhibiting the combustion reaction. The nano-zirconia filler absorbs some infrared radiation and reduces heat transfer inward through its low emissivity surface. The carbon fiber has high thermal conductivity, quickly conducting the heat absorbed by the inner layer to the outer layer. The graphite coating further enhances the radiative heat dissipation efficiency in the mid-infrared band. The aluminum foil surface has a reflectivity of up to 95%, reflecting residual heat radiation back to the outer layer and reducing heat penetration. With a thickness of only 0.02mm and negligible weight, it also has waterproof and oil-proof properties, making it easy to clean.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A thermal and flame resistant fire protective coverall comprising a coverall body (1), characterized in that, The car cover body (1) is made of various materials, and the inside of the car cover body (1) contains a composite layer (2) for improving the heat insulation and flame retardation of the car cover body (1); The composite layer (2) includes a high-temperature-resistant metal composite woven layer (201), an aerogel composite heat insulation layer (202), a high-strength aramid fiber reinforcing layer (203), a silica gel coating sealing layer (204), a flexible carbon fiber lining layer (205), and an aluminum foil reflecting layer (206), and is arranged from outside to inside.

2. A fire resistant cover for a train according to claim 1, wherein The high-temperature-resistant metal composite woven layer (201) is made of stainless steel wire mixed with ceramic fiber, and is stitched by high-temperature-resistant thread, serving as the outermost layer of the car cover body (1) and enhancing the overall impact resistance.

3. A fire resistant cover for a train according to claim 1, wherein The aerogel composite heat insulation layer (202) is made of silica aerogel and glass fiber composite material, is bonded with the high-temperature-resistant metal composite woven layer (201) by using high-temperature-resistant silicone glue, and is reinforced at the edge by metal rivets to prevent the aerogel from falling off.

4. A fire resistant cover for a train according to claim 1, wherein The high-strength aramid fiber reinforcing layer (203) is made of Kevlar fiber woven cloth, is combined with the aerogel composite heat insulation layer (202) by ultrasonic spot welding, forms a dot matrix reinforcing structure, and reduces the thermal bridge effect.

5. A fire resistant cover for a train according to claim 1, wherein The silica gel coating sealing layer (204) is made of flame-retardant silicone rubber plus nano zirconium oxide filler, is combined with the high-strength aramid fiber reinforcing layer (203) by hot pressing process, is sealed at the edge by laser welding, and forms an airtight structure.

6. A fire resistant cover for a train according to claim 1, wherein The flexible carbon fiber lining layer (205) is made of carbon fiber woven cloth plus graphite coating, is bonded with the silica gel coating sealing layer (204) by conductive glue, and is embedded in the Kevlar fiber edge band to prevent carbon fiber breakage.

7. A fire resistant cover for a train according to claim 1, wherein The aluminum foil reflecting layer (206) is made of vacuum aluminum-plated polyester film, serves as the innermost layer, is combined with the flexible carbon fiber lining layer (205) by low-temperature hot melt glue, is fixed at the edge by pressure-sensitive adhesive tape, and ensures that it does not fall off during long-term use.

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