Explosion-proof automobile film with multi-layer heat insulation structure

By adopting a multi-layer thermal insulation structure in the explosion-proof automotive film, including metal reflective layer and thermal insulation particles, the problems of adhesive delamination and aging in high-temperature environments are solved, and the effects of reducing heat transfer, extending service life and improving interior comfort are achieved.

CN222961356UActive Publication Date: 2025-06-10NANTONG NAR MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202421918277.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-09
Publication Date
2025-06-10
Estimated Expiration
2034-08-09

AI Technical Summary

Technical Problem

The existing explosion-proof automotive membranes can easily lead to adhesive delamination, aging, reduce service life, and affect the comfort of the car in high temperature environments.

Method used

Explosion-proof automotive films using multi-layer thermal insulation structures include anti-wear layer, metal reflective layer, thermal insulation layer, reinforcement layer, mounting layer, release layer and ultraviolet absorbing layer. The metal reflective layer reflects heat radiation, the insulating particles support the cavity, and the thermal resistance and contact thermal resistance of the multilayer material reduce heat transfer.

Benefits of technology

Effectively reduce heat transfer to the car, extend the service life of the explosion-proof membrane, improve the comfort in the car, and enhance the mechanical strength and tension of the explosion-proof membrane, and improve safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222961356U_ABST
Patent Text Reader

Abstract

The utility model discloses an explosion-proof automobile film with a multi-layer heat insulation structure, which comprises a wear-resistant layer, a metal reflecting layer arranged on the lower surface of the wear-resistant layer, a heat insulation layer arranged on the lower surface of the metal reflecting layer, a reinforcing layer arranged on the lower surface of the heat insulation layer, a mounting layer arranged on the lower surface of the reinforcing layer, and a heat insulation layer arranged on the lower surface of the mounting layer. A release layer is arranged on the lower surface of the installation layer, a large amount of heat radiation can be reflected through the high reflection performance of the metal reflection layer, a large amount of heat radiation can be reflected through the high reflection performance of the metal reflection layer, a cavity in the heat insulation layer can be supported through the heat insulation particles, and collapse of the cavity is prevented. According to the anti-explosion film, the heat insulation effect can be achieved by air in the cavity to a certain extent, heat transfer can be effectively reduced through heat resistance and contact heat resistance between the multiple layers of different materials, the effect of reducing heat transfer into an automobile is achieved, and the anti-explosion film further has the effects of preventing the adhesive from delaminating, reducing aging of the anti-explosion film and prolonging the service life of the anti-explosion film.
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Description

Technical Field

[0001] The utility model relates to the technical field of automotive films, and particularly relates to an explosion-proof automotive film with a multi-layer heat insulation structure. Background Art

[0002] An explosion-proof automotive film, also known as a solar film, is pasted on the inner side of the car glass window, which plays the roles of heat insulation, sun protection, light filtering, explosion protection, and protecting the privacy inside the car. It can tightly adhere to the glass fragments. When a collision accident occurs or the windshield is knocked by a gangster, the glass fragments will not fall off and fly, protecting the safety of the people inside the car.

[0003] The explosion-proof film is usually fixed to the car glass through an adhesive. The explosion-proof film is easily affected by high temperature, which can cause the adhesive to delaminate, easily age the explosion-proof film, reduce the service life of the explosion-proof film, and affect the comfort of the people inside the car. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an explosion-proof automotive film with a multi-layer heat insulation structure. Through the high reflection performance of the metal reflection layer, a large amount of heat radiation can be reflected. Through the heat insulation particles, the cavities inside the heat insulation layer can be supported to prevent the cavities from collapsing, so that the air inside the cavities can also play a heat insulation effect to a certain extent. The thermal resistance and contact thermal resistance between multiple different materials can effectively reduce heat transfer, so as to achieve the effect of reducing heat transfer to the inside of the car, and also has the effects of preventing the adhesive from delaminating, reducing the aging of the explosion-proof film, and improving the service life of the explosion-proof film.

[0005] The utility model also provides an explosion-proof automotive film with the above-mentioned multi-layer heat insulation structure, including an abrasion-resistant layer. The lower surface of the abrasion-resistant layer is provided with a metal reflection layer. The lower surface of the metal reflection layer is provided with a heat insulation layer. The lower surface of the heat insulation layer is provided with a strengthening layer. The lower surface of the strengthening layer is provided with an installation layer. The lower surface of the installation layer is provided with a release layer.

[0006] According to the explosion-proof automotive film with a multi-layer heat insulation structure, cavities are arranged inside the heat insulation layer, heat insulation particles are arranged inside the cavities, the heat insulation particles are made of polycarbonate material, and the heat insulation layer is made of TPU material. The heat insulation particles can be used to support the cavities to prevent the cavities from collapsing. When the cavities collapse, the upper and lower ends are attached, which is likely to reduce the heat insulation effect.

[0007] According to the explosion-proof automotive film with a multi-layer heat insulation structure described above, the anti-abrasion layer is made of PVC material, the reinforcement layer is made of polyethylene synthetic fiber material, and the reinforcement layer is a mesh woven structure. The reinforcement layer is used to enhance the mechanical strength and tensile resistance of the explosion-proof film, so that when the automotive glass breaks, it can effectively prevent the glass fragments from flying, thereby protecting the safety inside the vehicle. The wear-resistant layer can protect the automotive film from being scratched, reduce the surface wear of the automotive film, and further improve the service life of the explosion-proof film.

[0008] According to the explosion-proof automotive film with a multi-layer heat insulation structure described above, the release layer is made of polyethylene terephthalate material, and the material of the metal reflection layer is aluminum material. The metal reflection layer can effectively reflect the heat energy of the sun, reduce the temperature inside the vehicle, and thus improve the comfort inside the vehicle.

[0009] According to the explosion-proof automotive film with a multi-layer heat insulation structure described above, an acrylate adhesive is provided on the lower surface of the installation layer, and the installation layer is made of PET material. The acrylate adhesive is used to connect the explosion-proof film to the automotive glass, so that when the glass breaks, it can still adhere to the explosion-proof film, which can improve safety and ensure the safety of the people inside the vehicle.

[0010] According to the explosion-proof automotive film with a multi-layer heat insulation structure described above, a UV absorption layer is provided on the upper surface of the anti-abrasion layer, and the UV absorption layer is a nano-zinc oxide coating. The UV absorption layer can block the sun's ultraviolet rays, protect the people inside the vehicle from the damage of ultraviolet rays, and reduce ultraviolet rays, which can reduce the aging speed of the explosion-proof film, and thus improve the service life of the explosion-proof film.

[0011] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0012] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0013] Figure 1 It is the overall structure diagram of an explosion-proof automotive film with a multi-layer heat insulation structure of the present utility model;

[0014] Figure 2 It is the overall structure sectional view of an explosion-proof automotive film with a multi-layer heat insulation structure of the present utility model;

[0015] Figure 3 It is the overall structure explosion diagram of an explosion-proof automotive film with a multi-layer heat insulation structure of the present utility model;

[0016] Figure 4 It is the partial structure sectional view of an explosion-proof automotive film with a multi-layer heat insulation structure of the present utility model.

[0017] Legend Explanation:

[0018] 1. Wear-resistant layer; 2. Metal reflection layer; 3. Heat insulation layer; 4. Reinforcement layer; 5. Installation layer; 6. Release layer; 7. Cavity; 8. Heat insulation particles; 9. Acrylate adhesive; 10. Ultraviolet absorption layer. Detailed Implementation Modes

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0020] Refer to Figures 1-4 , an explosion-proof automotive film with a multi-layer heat insulation structure according to an embodiment of the present utility model includes a wear-resistant layer 1. The wear-resistant layer 1 is made of PVC material. The lower surface of the wear-resistant layer 1 is provided with a metal reflection layer 2. The metal reflection layer 2 is made of aluminum material. The lower surface of the metal reflection layer 2 is provided with a heat insulation layer 3. The interior of the heat insulation layer 3 is provided with a cavity 7. The interior of the cavity 7 is provided with heat insulation particles 8. The heat insulation particles 8 are made of polycarbonate material. The heat insulation layer 3 is made of TPU material. The lower surface of the heat insulation layer 3 is provided with a reinforcement layer 4. The reinforcement layer 4 is a mesh woven structure. The reinforcement layer 4 is made of polyethylene synthetic fiber material. The lower surface of the reinforcement layer 4 is provided with an installation layer 5. The lower surface of the installation layer 5 is provided with an acrylate adhesive 9. The installation layer 5 is made of PET material. The lower surface of the installation layer 5 is provided with a release layer 6. The release layer 6 is made of polyethylene terephthalate material. The upper surface of the wear-resistant layer 1 is provided with an ultraviolet absorption layer 10. The ultraviolet absorption layer 10 is a nano-zinc oxide coating.

[0021] Working Principle: When exposed to sunlight, the ultraviolet absorption layer 10 can block most of the ultraviolet rays, reducing the harm of ultraviolet rays to the human body and preventing the wear-resistant layer 1 from turning yellow after being irradiated by ultraviolet rays. After being irradiated by sunlight, the metal reflection layer 2 can reflect most of the heat radiation, reducing the overall temperature of the explosion-proof film. Through the heat insulation particles 8, the cavity 7 inside the heat insulation layer 3 can be supported to prevent the cavity 7 from collapsing, so that the air inside the cavity 7 can also play a heat insulation effect to a certain extent. The thermal resistance and contact thermal resistance between multiple different materials can effectively reduce heat transfer, thus achieving the effect of reducing heat transfer to the inside of the vehicle. When impacted, the acrylate adhesive 9 can bond the broken glass to the explosion-proof film, avoiding the safety hazards caused by broken glass.

[0022] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. An explosion-proof automobile film with a multi-layer heat-insulating structure, characterized in that: include: An anti-wear layer (1), wherein a metal reflective layer (2) is arranged on the lower surface of the anti-wear layer (1), a heat insulating layer (3) is arranged on the lower surface of the metal reflective layer (2), a reinforcing layer (4) is arranged on the lower surface of the heat insulating layer (3), a mounting layer (5) is arranged on the lower surface of the reinforcing layer (4), and a release layer (6) is arranged on the lower surface of the mounting layer (5).

2. The explosion-proof automobile film with a multi-layer heat-insulating structure according to claim 1, characterized in that: A cavity (7) is provided inside the heat insulation layer (3), and heat insulation particles (8) are provided inside the cavity (7); the heat insulation particles (8) are made of polycarbonate, and the heat insulation layer (3) is made of TPU.

3. The explosion-proof automobile film with a multi-layer heat-insulating structure according to claim 1, characterized in that: The anti-wear layer (1) is made of PVC material, the reinforcement layer (4) is made of polyethylene synthetic fiber material, and the reinforcement layer (4) is a mesh woven structure.

4. The explosion-proof automobile film with a multi-layer heat-insulating structure according to claim 1, characterized in that: The release layer (6) is made of polyethylene terephthalate, and the metal reflective layer (2) is made of aluminum.

5. The explosion-proof automobile film with a multi-layer heat-insulating structure according to claim 1, characterized in that: The lower surface of the mounting layer (5) is provided with an acrylic adhesive (9), and the mounting layer (5) is made of PET material.

6. The explosion-proof automobile film with a multi-layer heat-insulating structure according to claim 1, characterized in that: An ultraviolet absorbing layer (10) is provided on the upper surface of the anti-wear layer (1), and the ultraviolet absorbing layer (10) is a nano zinc oxide coating.