Membrane structure, vehicle door and vehicle
By incorporating a sound-absorbing layer and connecting holes into the door sealing film, combined with a multi-layer structure, the problem of insufficient sound absorption and insulation effect of traditional door sealing films is solved, achieving better noise reduction and improved passenger comfort.
Patent Information
- Application Number
- CN202423079947.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Traditional car door sealing films have limited sound absorption and insulation effects, which cannot meet the high comfort requirements of modern cars.
Design a membrane structure including a sound-absorbing layer with sound-absorbing holes extending through its thickness and connecting holes between adjacent sound-absorbing holes to enhance the propagation path and absorption effect of sound wave energy. Combine a base membrane, a waterproof layer, a reinforcing layer and an anti-slip layer to improve overall performance.
It significantly improves the sound absorption and insulation effect at the vehicle doors, enhances the comfort of passengers, and reduces the interference of external noise on the vehicle interior.
Smart Images
Figure CN223590283U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle parts technical field, specifically, relate to a film structure, vehicle door and vehicle. BACKGROUND
[0002] The automobile door sealing film is installed in the vehicle door body, the role of the film structure design at the beginning is waterproof, however, along with the rapid development of the automobile industry, people's requirement to the automobile comfort is higher and higher, so each automobile factory puts forward the requirement of sound absorption and sound insulation on the sealing film to improve the comfort of the in-vehicle passenger in hearing and reduce the interference of the outside noise to the in-vehicle passenger. SUMMARY
[0003] The utility model aims at improving the sound absorption and sound insulation effect of the film structure in the vehicle door body.
[0004] To solve the above problem, the utility model provides a film structure, including film main body, the film main body includes sound absorption layer, a plurality of sound absorption holes that pass through the thickness of the sound absorption layer are arranged on the sound absorption layer, and the sound absorption layer is further provided with connecting holes between adjacent sound absorption holes, and the connecting holes are communicated with the adjacent two sound absorption holes.
[0005] The film structure provided by the utility model can be used in the vehicle door body to improve the sound absorption and sound insulation effect of the vehicle at the door. Specifically, the film main body at least includes a sound absorption layer, which can be made of a material with sound insulation effect, such as foam material, nanometer material, etc., which can absorb sound wave energy to convert sound energy into heat energy or other forms of energy, thereby reducing the propagation of sound waves; and a plurality of sound absorption holes are arranged on the sound absorption layer, which can further absorb sound wave energy through the sound absorption holes; especially, connecting holes are arranged between adjacent sound absorption holes to communicate adjacent sound absorption holes, so that at least part of the sound wave energy entering some sound absorption holes can enter other adjacent sound absorption holes through the connecting holes, which not only allows sound wave energy to be distributed to each sound absorption hole, but also increases the propagation path of sound waves in the sound absorption layer, so that the film main body with the sound absorption layer has better sound absorption and sound insulation effect, and the comfort of the in-vehicle passenger is improved.
[0006] Further, the plurality of sound absorption holes are sequentially distributed in a first dimension direction and a second dimension direction, respectively, and the first dimension direction and the second dimension direction are perpendicular.
[0007] The connecting hole between two adjacent sound absorption holes in the first dimension direction is a first connecting hole, and the size of the first connecting hole in the second dimension direction is smaller than the size of the sound absorption hole in the second dimension direction; or / and, the connecting hole between two adjacent sound absorption holes in the second dimension direction is a second connecting hole, and the size of the second connecting hole in the first dimension direction is smaller than the size of the sound absorption hole in the first dimension direction.
[0008] Further, the film body further comprises a base film and a waterproof layer, and the sound absorption layer is arranged between the base film and the waterproof layer, wherein two ends of the sound absorption hole are respectively closed by the base film and the waterproof layer to form a sound absorption cavity.
[0009] Further, the film body further comprises a reinforcing layer, and the reinforcing layer is arranged on the side of the base film away from the sound absorption layer.
[0010] Further, the film body further comprises an anti-skid layer, and the anti-skid layer is arranged on the side of the reinforcing layer away from the base film.
[0011] Further, the surface of the sound absorption layer is uneven.
[0012] Further, the film structure further comprises two protective films, and the partial edge positions of the two protective films are connected, and the other partial edge positions of the two protective films form an opening, and the film body is used for entering and exiting between the two protective films through the opening.
[0013] Further, at least one of the protective films is provided with a connecting piece at the opening, and the two protective films are used for being connected through the connecting piece at the opening to close or open the opening.
[0014] The utility model also provides a kind of door, including the film structure as described above.
[0015] Since the technical improvement and beneficial effect of the door are at least the same as the film structure, the door will not be described again.
[0016] The utility model also provides a kind of vehicle, including the film structure as described above, or including the door as described above.
[0017] Since the technical improvement and beneficial effect of the vehicle are at least the same as the film structure or the door, the vehicle will not be described again. DRAWINGS
[0018] Figure 1 It is structural schematic view that film body of film structure of the utility model embodiment is located between two protective films;
[0019] Figure 2Structure schematic view of the film main body after being removed from between two protective films;
[0020] Figure 3 Sectional view of the film main body;
[0021] Figure 4 Side view of the sound absorption layer.
[0022] Explanation of reference signs:
[0023] 1, film main body; 11, sound absorption layer; 111, sound absorption hole; 112, connecting hole; 12, base film; 13, waterproof layer; 14, reinforcing layer; 15, anti-skid layer; 16, adhesive layer; 2, protective film; 21, connecting piece. DETAILED DESCRIPTION
[0024] In order to make the above object, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.
[0025] In the description of the present application, it should be understood that the terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the device or element to a specific orientation, structure and operation, and therefore cannot be understood as limiting the present application.
[0026] The Z-axis in the drawings represents the vertical direction, that is, the up-down position, and the positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side; the Y-axis in the drawings represents the left-right position, and the positive direction of the Y-axis represents the left side, and the negative direction of the Y-axis represents the right side; the X-axis in the drawings represents the longitudinal direction, that is, the front-rear position, and the positive direction of the X-axis represents the front side, and the negative direction of the X-axis represents the rear side. It should be noted that the meanings of the aforementioned Z-axis, Y-axis and X-axis are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the device or element to a specific orientation, structure and operation, and therefore cannot be understood as limiting the present application.
[0027] The term "include," and derivations thereof, is an open term that means "including, but not limited to"; the term "based on" is "based, at least in part, on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments." Related definitions are given throughout the detailed description. It is to be noted that the concepts mentioned in the present application are illustrative and not restrictive, and those skilled in the art should understand that "one" or "a plurality of" is illustrative and not restrictive, and should be understood as "one or more" unless otherwise explicitly stated in the context.
[0028] It is to be noted that the modification of "one" or "a plurality" mentioned in the present application is illustrative and not restrictive, and those skilled in the art should understand that "one" or "a plurality" is illustrative and not restrictive, and should be understood as "one or more" unless otherwise explicitly stated in the context.
[0029] Referring to Figures 2-4 The film structure of the present application comprises a film body 1, the film body 1 comprises an acoustic absorption layer 11, a plurality of acoustic absorption holes 111 penetrating the thickness of the acoustic absorption layer 11 are arranged on the acoustic absorption layer 11, and a connecting hole 112 is further arranged between adjacent acoustic absorption holes 111 to communicate the adjacent two acoustic absorption holes 111.
[0030] The film structure provided in the present embodiment can be used in the door body to improve the sound absorption and insulation effect of the vehicle at the door. Specifically, the film body 1 comprises at least an acoustic absorption layer 11, which can be made of a material having sound insulation effect, such as foam material, nanomaterial, etc., which can absorb sound wave energy to convert sound energy into heat energy or other forms of energy, thereby reducing the propagation of sound waves.
[0031] Furthermore, a plurality of acoustic absorption holes 111 penetrating the thickness of the acoustic absorption layer 11 are arranged on the acoustic absorption layer 11, thereby further absorbing sound wave energy through the acoustic absorption holes 111; especially, a connecting hole 112 is further arranged between adjacent acoustic absorption holes 111 to communicate the adjacent acoustic absorption holes 111. In this way, the arrangement of the connecting hole 112 can make at least part of the sound wave energy entering some acoustic absorption holes 111 enter other adjacent acoustic absorption holes 111 through the connecting hole 112, so that the sound wave energy can be distributed to each acoustic absorption hole 111, and the propagation path of the sound wave in the acoustic absorption layer 11 is increased, so that the film body 1 with the acoustic absorption layer 11 has better sound absorption and insulation effect, and the comfort of the passengers in the vehicle is improved.
[0032] Optionally, the sound-absorbing layer 11 is made of a nano material, for example, with a thickness of 0.4-0.6 mm, such as 0.4 mm, 0.5 mm or 0.6 mm. The nano material can effectively absorb noise due to its small pore structure, and the sound-absorbing and sound-insulating effect is more outstanding for high-frequency sound waves. The thickness of 0.4-0.6 mm helps to reduce the propagation of high-frequency sound waves. The sound-absorbing layer 11 of the porous material converts sound energy into heat energy by causing friction between air molecules and pore walls when sound propagates in the material pores, which is more effective for high-frequency sound waves with shorter wavelengths. In other words, because the wavelength of high-frequency sound waves is relatively short, it is more likely to interact with the pore size of the sound-absorbing layer 11 of the porous material. When high-frequency sound waves enter the pores of the porous material, they can be reflected, refracted and scattered multiple times in a small space due to their short wavelength, thereby increasing the opportunity for sound waves to contact the pore walls and converting more sound energy into heat energy to attenuate. For example, high-frequency noise such as sharp braking sound can effectively disperse and dissipate its energy when passing through the sound-absorbing layer 11 of the porous material.
[0033] On this basis, the sound-absorbing layer 11 of the porous material is further provided with a plurality of sound-absorbing holes 111. The sound waves can increase the contact with the material after entering the sound-absorbing holes 111, thereby enhancing the absorption of sound wave energy. In other words, the sound-absorbing holes 111 have the effect of increasing the interaction between sound waves and materials. When sound waves are refracted, reflected or scattered in the sound-absorbing holes 111, they can increase the opportunity for sound waves to enter the pores of the material around the sound-absorbing holes 111, thereby improving the overall sound-absorbing effect.
[0034] Further, the sound-absorbing layer 11 not only has a plurality of sound-absorbing holes 111, but also has connecting holes 112 that connect adjacent sound-absorbing holes 111. This design can further enhance the flow of sound waves, allowing more interaction between sound waves in different holes. The propagation and conversion of sound waves between the plurality of sound-absorbing holes 111 can increase the contact time with the sound-absorbing material, thereby improving the absorption of sound energy.
[0035] Preferably, the plurality of sound-absorbing holes 111 are uniformly distributed on the sound-absorbing layer 11, and the size of each sound-absorbing hole 111 is consistent, thereby making the sound-absorbing and sound-insulating effect of the film body more uniform and improving the comfort of the passengers in the vehicle.
[0036] Optionally, referring to Figure 4 , the plurality of sound-absorbing holes 111 are sequentially distributed in a first dimension direction and a second dimension direction, respectively, and the first dimension direction and the second dimension direction are perpendicular;
[0037] The connecting hole 112 between two adjacent sound absorption holes 111 in the first dimension direction is a first connecting hole, and the size of the first connecting hole in the second dimension direction is smaller than the size of the sound absorption hole 111 in the second dimension direction; or / and, the connecting hole 112 between two adjacent sound absorption holes 111 in the second dimension direction is a second connecting hole, and the size of the second connecting hole in the first dimension direction is smaller than the size of the sound absorption hole 111 in the first dimension direction.
[0038] In this embodiment, the shape of the sound absorption hole 111 is not limited, and can be circular, or can be designed into different shapes according to actual needs, such as oval or other irregular polygons; the shape of the connecting hole 112 is also not limited, and can be strip-shaped or S-shaped non-straight line. It should be noted that the shape of the sound absorption hole 111 and the shape of the connecting hole 112 each refer to their respective cross-sectional shapes (cross-sectional shapes perpendicular to the thickness direction of the sound absorption layer 11).
[0039] In this embodiment, in order to facilitate processing and molding, the shape of the sound absorption hole 111 is preferably circular, and the shape of the connecting hole 112 is preferably strip-shaped.
[0040] As described above, the plurality of sound absorption holes 111 are preferably uniformly distributed on the sound absorption layer 11, and the "uniformity" of the distribution of the plurality of sound absorption holes 111 can refer to "the plurality of sound absorption holes 111 are sequentially distributed in the first dimension direction and the second dimension direction, respectively, and the first dimension direction and the second dimension direction are perpendicular". Figure 4 As shown, the first dimension direction is, for example, the vertical direction (Z-axis direction) shown in the figure, and the second dimension direction is, for example, the longitudinal direction (X-axis direction) shown in the figure. The sound absorption holes 111 are not only sequentially distributed on the sound absorption layer 11 in the vertical direction, but also sequentially distributed on the sound absorption layer 11 in the longitudinal direction, that is, the plurality of sound absorption holes 111 are distributed on the sound absorption layer 11 in a rectangular array.
[0041] On this basis, the connecting hole 112 between two sound absorption holes 111 in the vertical direction is recorded as the first connecting hole, and the connecting hole 112 between two sound absorption holes 111 in the longitudinal direction is recorded as the second connecting hole. The size of the first connecting hole in the second dimension direction is smaller than the size of the sound absorption hole 111 in the second dimension direction, which means that the size of the first connecting hole in the longitudinal direction is smaller than the size of the sound absorption hole 111 in the longitudinal direction. The size of the second connecting hole in the first dimension direction is smaller than the size of the sound absorption hole 111 in the first dimension direction, which means that the size of the second connecting hole in the vertical direction is smaller than the size of the sound absorption hole 111 in the vertical direction. By designing the size of the connecting hole 112 to be smaller than the sound absorption hole 111, it can be ensured that the sound wave energy can be reflected, refracted and scattered for a long time at the circular inner wall of the original sound absorption hole 111 before it propagates from the original sound absorption hole 111 to another sound absorption hole 111 through the connecting hole 112.
[0042] Optionally, referring to Figure 3 , the film body 1 further comprises a base film 12 and a waterproof layer 13, and the sound absorption layer 11 is arranged between the base film 12 and the waterproof layer 13, wherein the two ends of the sound absorption hole 111 are respectively closed by the base film 12 and the waterproof layer 13 to form a sound absorption cavity.
[0043] In this embodiment, the sound absorption layer 11 is further provided with a base film 12 and a waterproof layer 13 on both sides. The base film 12 can be made of polyurethane material, and the thickness is 0.9-1.1 mm, for example, 0.9 mm, 1 mm or 1.1 mm. Compared with the sound absorption layer 11 made of porous material, the polyurethane material used for the base film 12 has good mechanical properties, including high strength and wear resistance. The base film 12 with a thickness of 0.9-1.1 mm can provide certain support and rigidity to ensure that the film body 1 can maintain its shape and structural stability.
[0044] In this embodiment, the waterproof layer 13 is made of waterproof material. The waterproof layer 13 can be the outermost structural layer of the film body 1, which can protect the film body 1 and also has the function of waterproofing, so that the film body 1 has the effect of sealing and waterproofing when applied in the vehicle door body.
[0045] In this embodiment, since the sound-absorbing layer 11 is provided with the base film 12 and the waterproof layer 13 on both sides, the base film 12 and the waterproof layer 13 can seal both ends of the sound-absorbing hole 111 (both ends in the thickness direction of the sound-absorbing layer 11) to form a sound-absorbing cavity. For example, when the sound wave energy enters the sound-absorbing cavity from the base film 12 on one side of the sound-absorbing layer 11, the sound wave will stay in the sound-absorbing cavity for a longer time under the obstruction of the waterproof layer 13 on the other side of the sound-absorbing layer 11, which can further improve the sound-absorbing effect of the sound-absorbing layer 11 and the sound-absorbing and sound-insulating effect of the film main body 1. Of course, the base film 12 and the waterproof layer 13 will also seal both ends of the connecting hole 112 (both ends in the thickness direction of the sound-absorbing layer 11) to ensure that the sound wave will not easily flow out when propagating in the connecting hole 112, but will propagate the sound wave energy to various positions of the sound-absorbing layer 11.
[0046] Optionally, referring to Figure 3 , the film main body 1 further comprises a reinforcing layer 14, and the reinforcing layer 14 is arranged on the side of the base film 12 away from the sound-absorbing layer 11.
[0047] In this embodiment, the reinforcing layer 14 is arranged on the side of the base film 12 away from the sound-absorbing layer 11. The reinforcing layer 14 can be made of polyurethane fiber material with a thickness of 0.4mm-0.6mm, for example, 0.4mm, 0.5mm or 0.6mm. The polyurethane fiber material has high strength and good elastic recovery capability, which can further increase the strength of the film main body 1 and enhance the overall durability and tensile resistance of the film main body 1. The thickness of 0.4mm-0.6mm provides additional support to prevent the film main body 1 from deforming due to stress during long-term use.
[0048] Optionally, referring to Figure 3 , the film main body 1 further comprises an anti-skid layer 15, and the anti-skid layer 15 is arranged on the side of the reinforcing layer 14 away from the base film 12.
[0049] In this embodiment, the anti-skid layer 15 and the aforementioned waterproof layer 13 are respectively the outermost sides of the film main body 1. The anti-skid layer 15 can be made of polyurethane particles with a thickness of 0.4mm-0.6mm, for example, 0.4mm, 0.5mm or 0.6mm. The anti-skid property provided by the polyurethane particles helps the film main body 1 to be better fixed on the door body and prevents the sound-absorbing and sound-insulating effect from being reduced due to vibration or movement. The thickness of 0.4mm-0.6mm is sufficient to provide good grip between the film main body 1 and the door body, and will not hinder the closing of the door.
[0050] Optionally, the surface of the sound-absorbing layer 11 is uneven.
[0051] In this embodiment, the surface of the sound-absorbing layer 11 (both sides in the thickness direction) is in a wavy shape, for example, corrugated, wavy, hilly, and the like, thereby further increasing the surface area of the sound-absorbing layer 11 and better absorbing noise. It can be understood that, on the basis that the film body 1 not only includes the sound-absorbing layer 11, but also includes the base film 12, the waterproof layer 13, the reinforcing layer 14, and the anti-skid layer 15, the surface shape of the base film 12, the waterproof layer 13, the reinforcing layer 14, and the anti-skid layer 15 can be matched with the sound-absorbing layer 11, and finally the surface shape of the entire film body 1 is as shown in Figures 1-2 .
[0052] Optionally, the anti-skid layer 15 and the reinforcing layer 14, the reinforcing layer 14 and the base film 12, the base film 12 and the sound-absorbing layer 11, and the sound-absorbing layer 11 and the waterproof layer 13 can be connected together by adhesion, and an adhesive layer 16 is formed between the two adjacent layers, as shown in Figure 3 . The adhesive layer 16 can use a high-temperature-resistant, aging-resistant, high-adhesion, and environmentally friendly adhesive, which not only has firm adhesion and improves the service life of the film body 1, but also ensures that no harmful substances are generated when the film body 1 is attached to the vehicle door body, thereby meeting environmental protection requirements.
[0053] Optionally, referring to Figures 1-2 , the film structure further includes two protective films 2, and the two protective films 2 are connected at part of the edge positions and form an opening between other part of the edge positions, and the film body 1 is used to enter and exit between the two protective films 2 through the opening.
[0054] In this embodiment, the film structure includes not only the film body 1, but also two protective films 2. Before the film body 1 is installed in the vehicle door body, the film body 1 can be placed between the two protective films 2 to protect the film body 1. The protective film 2 can be made of polyester material, and the thickness is 0.9mm-1.1mm, for example, 0.9mm, 1mm or 1.1mm. The polyester material has good chemical resistance and weather resistance, and can protect the film body 1 from the influence of the external environment, prevent the film body 1 from being mechanically damaged or chemically corroded, and the three side edges between the two protective films 2 can be connected by hot pressing, and the other side edges form an opening. When the film structure is transported or moved, the film body 1 between the two protective films 2 can be removed from the opening to be installed on the vehicle door body.
[0055] Optionally, referring to Figures 1-2 , at least one of the protective films 2 is provided with a connecting piece 21 at the opening, and the two protective films 2 are connected at the opening through the connecting piece 21 to close or open the opening.
[0056] In the embodiment, the two protective films 2 between the edges of the opening can be connected together by the connecting piece 21, thereby closing the opening to prevent the film body 1 from being accidentally removed from between the two protective films 2 during movement or transportation of the film structure. The connecting piece 21 can be an adhesive strip, which is convenient to detach after closing the opening of the two protective films 2 (i.e., convenient to open the opening). Of course, in other embodiments, the connecting piece 21 can be a buckle or other structure.
[0057] The utility model discloses another embodiment further provides a kind of door, including the film structure as described above.
[0058] The film body 1 in the film structure provided in the embodiment can be assembled in the door body, to improve the sound absorption and sound insulation effect of the vehicle at the door.
[0059] Since the technical improvements and beneficial effects of the door are at least the same as those of the film structure, the door will not be described again.
[0060] The utility model discloses still another embodiment further provides a kind of vehicle, including the film structure as described above, or including the door as described above.
[0061] Since the technical improvements and beneficial effects of the vehicle are at least the same as those of the film structure or the door, the vehicle will not be described again.
[0062] The terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features.
[0063] Although the utility model discloses as above, the protection scope of the utility model is not only limited to this. The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will all fall within the protection scope of the utility model.
Claims
1. A film structure, characterized by, The film structure comprises a film body (1), the film body (1) comprises a sound absorption layer (11), a plurality of sound absorption holes (111) penetrating through the thickness of the sound absorption layer (11) are arranged on the sound absorption layer (11), and the sound absorption layer (11) is further provided with a connecting hole (112) between adjacent sound absorption holes (111), the connecting hole (112) communicates two adjacent sound absorption holes (111).
2. The film structure of claim 1, wherein, The plurality of sound absorption holes (111) are sequentially arranged in a first dimension direction and a second dimension direction, and the first dimension direction and the second dimension direction are perpendicular to each other. The connecting hole (112) between two adjacent sound absorption holes (111) in the first dimension direction is a first connecting hole, and the size of the first connecting hole in the second dimension direction is smaller than the size of the sound absorption hole (111) in the second dimension direction; or / and, the connecting hole (112) between two adjacent sound absorption holes (111) in the second dimension direction is a second connecting hole, and the size of the second connecting hole in the first dimension direction is smaller than the size of the sound absorption hole (111) in the first dimension direction.
3. The film structure of claim 1, wherein, The film body (1) further comprises a base film (12) and a waterproof layer (13), and the sound absorption layer (11) is arranged between the base film (12) and the waterproof layer (13), wherein both ends of the sound absorption hole (111) are closed by the base film (12) and the waterproof layer (13) respectively to form a sound absorption cavity.
4. The film structure of claim 3, wherein, The film body (1) further comprises a reinforcing layer (14), and the reinforcing layer (14) is arranged on the side of the base film (12) away from the sound absorption layer (11).
5. The film structure of claim 4, wherein, The film body (1) further comprises an anti-skid layer (15), and the anti-skid layer (15) is arranged on the side of the reinforcing layer (14) away from the base film (12).
6. The film structure of claim 1, wherein, The surface of the sound absorption layer (11) is uneven.
7. The film structure of claim 1, wherein, Two protective films (2) are further included, the partial edge positions of the two protective films (2) are connected, and the other partial edge positions of the two protective films (2) form an opening, and the film body (1) is used to enter and exit between the two protective films (2) through the opening.
8. The film structure of claim 7, wherein, At least one of the protective films (2) is provided with a connecting piece (21) at the opening, and the two protective films (2) are used to be connected through the connecting piece (21) at the opening to close or open the opening.
9. A vehicle door, characterized by The film structure comprises the film structure according to any one of claims 1-8.
10. A vehicle characterized by comprising: The film structure comprises the film structure according to any one of claims 1-8, or the vehicle door according to claim 9.