Heat insulation automobile film
By using a multi-layered structure and a specially designed automotive film, the problems of poor heat dissipation and poor adhesion of existing films at high temperatures have been solved, achieving better heat insulation performance and adhesion effect.
Patent Information
- Application Number
- CN202423060324.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing car window films cannot effectively block external heat in hot weather, affecting the heat dissipation of the hood, and are prone to peeling, curling or demolding after long-term use.
A multi-layer structure including a protective layer, a heat insulation layer, a second protective layer, and an adhesive layer is designed. The heat insulation layer is provided with guide strips and shock-absorbing blocks. The guide strips are wavy to enhance heat dissipation, and the shock-absorbing blocks are hollow to enhance impact resistance. The adhesive layer is provided with protrusions to facilitate the discharge of air bubbles. The surface of the heat insulation layer is coated with an optical coating to reflect ultraviolet rays.
It improves the heat insulation and tensile strength of the car hood, enhances the adhesion and operational efficiency of the film, prevents heat buildup, and reduces edge lifting and demolding.
Smart Images
Figure CN223576393U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to car film technology field, concretely is a kind of heat insulation car film. BACKGROUND
[0002] Car film is a thin film attached to a car, mainly belonging to the beauty or modification project of car aftermarket, basic performance includes personalized decoration, protecting paint and facilitating washing etc., car cover has multiple types to choose from, can realize the whole car surface overall pasting, need not splicing, joint seamlessly presents the streamline of car body, while beautifying the appearance of vehicle, also plays the role of protecting paint, prevent paint oxidation damage etc., protect the glossiness and durability of original factory paint.
[0003] For example, some car owners will choose to attach a thin film on the hood of the vehicle to protect the car head that is easy to be scratched, but since the car head part is internally provided with engine components, it will generate a large amount of heat itself, in hot weather, some existing thin films not only cannot block the heat from the outside, but also affect the heat dissipation of the hood itself, which leads to poor adhesion of the thin film to the vehicle over a long period of time, resulting in edge lifting, curling and even demolding.
[0004] Therefore, the present application is proposed. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of heat insulation car film to solve the problems raised in the above background.
[0006] To solve the above technical problems, the heat insulation car film provided by the utility model comprises a protective layer one, a heat insulation layer, a protective layer two and an adhesive layer arranged in sequence along the vertical direction, the heat insulation layer is symmetrically provided with a plurality of guide strips on the opposite ends of the side wall close to the protective layer one, the protective layer two is uniformly provided with a plurality of uniformly distributed shock-absorbing blocks on the side wall close to the heat insulation layer, and the adhesive layer is provided with a plurality of uniformly distributed protrusions on the side wall away from the protective layer two.
[0007] Further, the guide strips provided on the side wall of the heat insulation layer close to the protective layer one include a bending portion close to the edge of one end of the heat insulation layer, one end of the bending portion away from the edge of the heat insulation layer is fixedly connected with a vertical portion, and the length direction of the vertical portion is parallel to the length direction of the heat insulation layer.
[0008] Further, the cross section of the bending portion is wave-shaped, one end of the bending portion away from the heat insulation layer is bent towards the corner of the heat insulation layer, there is a gap between the adjacent two guide strips, and the guide strips on both sides are symmetrically arranged about the symmetry axis of the side wall of the heat insulation layer close to the protective layer one.
[0009] Further, the shock-absorbing blocks on the side wall of the second protective layer close to the heat insulation layer are hollow structures, the hollow axes of the shock-absorbing blocks are perpendicular to the length direction of the second protective layer, and the adjacent two shock-absorbing blocks abut against each other.
[0010] Further, gaps exist between the adjacent two protrusions, and the protrusions are coaxially arranged at the abutment positions of the plurality of adjacent shock-absorbing blocks.
[0011] Further, the heat insulation layer is provided with an optical coating on the side wall close to the second protective layer.
[0012] Compared with the prior art, the automobile heat insulation film has the following beneficial effects:
[0013] 1. The multilayer structure protects the automobile engine cover to a certain extent, improves the heat insulation effect, strengthens the air flow on the surface of the engine cover, prevents heat accumulation from affecting the adhesion of the film to the vehicle, and strengthens the tensile resistance of the film through the wave-shaped bending part and the annular shock-absorbing block.
[0014] 2. The protrusions form a gap between the design and the surface of the vehicle, and the adjacent protrusions form channels, so that the operator can easily discharge the bubbles generated during the film sticking, and the excess water during the film sticking can be easily discharged along the channels, thereby improving the film sticking efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is an exploded view of the heat insulation automobile film structure.
[0016] Fig. 2 It is an exploded view of the connection structure of the second protective layer and the adhesive layer in the heat insulation automobile film.
[0017] Fig. 3 It is a schematic view of the overall structure of the heat insulation automobile film.
[0018] In the drawings:
[0019] 10, protective layer one;
[0020] 20, heat insulation layer; 21, bending part; 22, vertical part;
[0021] 30, second protective layer;
[0022] 40, adhesive layer; 41, protrusion. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.
[0024] Please refer to Figs. 1-3 The present application provides a technical solution: a protective layer one 10, a heat insulation layer 20, a protective layer two 30 and an adhesive layer 40 are sequentially arranged in the vertical direction, the heat insulation layer 20 is symmetrically provided with a plurality of guide strips at opposite ends of a side wall close to the protective layer one 10, the protective layer two 30 is uniformly provided with a plurality of uniformly distributed shock-absorbing blocks on a side wall close to the heat insulation layer 20, and the adhesive layer 40 is provided with a plurality of uniformly distributed protrusions 41 on a side wall away from the protective layer two 30.
[0025] It should be noted that the protective layer one 10, the heat insulation layer 20, the protective layer two 30 and the adhesive layer 40 are formed by hot pressing, and the adhesive layer 40 is used to attach the design to the surface of the automobile. In a possible embodiment, the protective layer one 10, the heat insulation layer 20, the protective layer two 30 and the adhesive layer 40 are all made of PET material.
[0026] Please refer to Figs. 1-3 The present application provides a technical solution: the guide strips arranged on the side wall of the heat insulation layer 20 close to the protective layer one 10 include a bending part 21 close to an end edge of the heat insulation layer 20, one end of the bending part 21 away from the edge of the heat insulation layer 20 is fixedly connected with a vertical part 22, and the length direction of the vertical part 22 is parallel to the length direction of the heat insulation layer 20.
[0027] It should be noted that the heat insulation layer 20 and the bending part 21 can be used to guide the airflow when the vehicle is running. The design is used to be attached to the hood of the automobile and the heat insulation layer 20 is arranged away from the windshield. Therefore, during the running of the automobile, the airflow moves along the heat insulation layer 20 through two adjacent bending parts 21, and the bending part 21 enables the high-speed airflow to carry away more heat from the surface of the hood and itself.
[0028] In rainy weather or when water enters between the protective layer one 10 and the heat insulation layer 20, the bending of the end of the bending part 21 can guide the water flow, so as to avoid splashing directly to the windshield to block the view during the running of the vehicle.
[0029] Please refer to Figs. 1-3The utility model provides a kind of technical scheme: the cross section of the bending part 21 is wavy, and the end of bending part 21 away from the heat insulation layer 20 is bent towards the corner of heat insulation layer 20, there is gap between adjacent two guide bars, and the guide bars on both sides are symmetrically arranged about the symmetry axis of the side wall of heat insulation layer 20 close to protective layer one 10.
[0030] It should be noted that: the bending part 21 not only can enhance the heat insulation effect, but also can optimize the heat dissipation performance to a certain extent, when the car is exposed to the sun, the bending part 21 on the surface of the heat insulation layer 20 can form more micro channels, which helps heat dissipation and air circulation, by increasing the surface area of the heat insulation layer 20 and changing the shape of the heat insulation layer 20, the bending part 21 can more effectively transfer heat from the film surface to the surrounding environment, thereby reducing the temperature of the film and reducing the accumulation of heat, and it can also adapt to a certain degree of deformation.
[0031] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: the shock-absorbing block on the side wall close to heat insulation layer 20 of protective layer two 30 is hollow structure, the hollow axis of shock-absorbing block is perpendicular to the length direction of protective layer two 30, and adjacent two shock-absorbing blocks abut each other.
[0032] It should be noted that: in a possible embodiment, the shock-absorbing block is a regular hexagonal structure, and multiple adjacent shock-absorbing blocks are spliced to form a honeycomb structure, which makes the film itself have better impact resistance and is not easily damaged by small scratches, and there are a large number of air channels inside the honeycomb structure, which can effectively isolate the transmission of sound and heat, reducing the downward transmission of heat.
[0033] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: there is gap between adjacent two convex blocks 41, and the abutting place of convex block 41 and multiple adjacent shock-absorbing blocks is coaxially arranged.
[0034] It should be noted that: multiple convex blocks 41 form channels, so that the staff can more easily discharge the bubbles generated during the installation from the channels, and the convex block 41 is made of PET material, which will soften synchronously when using a hot air gun to bake the film during installation, and is installed on the surface of the car together with the film during the installation process, increasing the contact area between the film and the windshield glass and improving the fit.
[0035] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: the heat insulation layer 20 is equipped with optical coating on the side wall close to protective layer two 30.
[0036] It should be noted that the optical coating is used to reflect ultraviolet rays to reduce the heat generated by the direct incidence of ultraviolet rays on the vehicle itself. In one possible embodiment, the material of the optical coating is silicon dioxide.
[0037] Working principle:
[0038] During the driving of the vehicle, the airflow moves along the heat insulation layer 20 through two adjacent curved portions 21, which allows the high-speed airflow to take away more heat from the surface of the hood and itself. In rainy weather or when water enters between the protective layer 10 and the heat insulation layer 20, the curvature at the end of the curved portion 21 can guide the water flow to avoid direct splashing onto the windshield to block the view.
[0039] The second protective layer 30 is used to further enhance the impact resistance and tensile strength of the design. The multiple protrusions 41 make it easier for workers to remove the air bubbles generated during the installation of the film along the adjacent protrusions 41. The protrusions 41 increase the contact area between the film and the windshield glass, and can better adapt to the uneven surface of the hood, improving the fit.
Claims
1. A heat-insulating automobile film, comprising a protective layer one (10), a heat-insulating layer (20), a protective layer two (30) and an adhesive layer (40) arranged in sequence in the vertical direction, characterized in that: The heat insulation layer (20) is symmetrically provided with a plurality of guide strips at opposite ends of a side wall close to the first protective layer (10), the second protective layer (30) is uniformly provided with a plurality of uniformly distributed shock-absorbing blocks on a side wall close to the heat insulation layer (20), and the adhesive layer (40) is provided with a plurality of uniformly distributed protrusions (41) on a side wall away from the second protective layer (30).
2. The heat-insulating car film according to claim 1, wherein: The guide strips provided on the side wall of the heat insulation layer (20) close to the first protective layer (10) comprise a bending portion (21) close to an edge of one end of the heat insulation layer (20), and a vertical portion (22) fixedly connected to one end of the bending portion (21) away from the edge of the heat insulation layer (20), wherein the length direction of the vertical portion (22) is parallel to the length direction of the heat insulation layer (20).
3. The heat-protective car film according to claim 2, wherein the adhesive layer is formed of a pressure-sensitive adhesive. The bending portion (21) has a wave-shaped cross section, and one end of the bending portion (21) away from the heat insulation layer (20) is bent towards a corner of the heat insulation layer (20), and there is a gap between adjacent two guide strips, and the guide strips on both sides are symmetrically arranged about the symmetry axis of the side wall of the heat insulation layer (20) close to the first protective layer (10).
4. The heat-protective car film according to claim 1, wherein the heat-protective car film is a film having a thickness of 0.1 to 0.3 mm. The shock-absorbing blocks on the side wall of the second protective layer (30) close to the heat insulation layer (20) have a hollow structure, the hollow axis of the shock-absorbing blocks is perpendicular to the length direction of the second protective layer (30), and adjacent two shock-absorbing blocks abut against each other.
5. The heat-protective car film according to claim 1, wherein the heat-protective car film is a film having a thickness of 0.1 to 0.3 mm. Adjacent two protrusions (41) have a gap therebetween, and the protrusions (41) are coaxially arranged at the abutment positions of the plurality of adjacent shock-absorbing blocks.
6. The heat-protective car film according to claim 1, wherein the heat-protective car film is a film having a thickness of 0.1 to 0.3 mm. The side wall of the heat insulation layer (20) close to the second protective layer (30) is provided with an optical coating.