Automobile reinforcing film and automobile door using same

Abstract

The utility model relates to the technical field of automobile accessories, in particular to an automobile reinforcing film and an automobile door using the same. The automobile reinforcing rubber sheet comprises a fiber cloth layer, a first reinforcing foaming layer, a steel mesh layer, a second reinforcing foaming layer and an isolating layer which are sequentially stacked, the steel mesh layer is provided with mesh holes for the first reinforcing foaming layer and the second reinforcing foaming layer to penetrate through in an expanding mode, and the mesh holes are evenly distributed in the steel mesh layer. The automobile reinforcing film has a good reinforcing effect, and the impact strength of automobile parts is improved; the bonding effect of the automobile reinforcing rubber sheet and the automobile part is good, and the automobile reinforcing rubber sheet is not easy to fall off after being bonded; the weight of the steel mesh layer is light, the weight of the whole automobile body can be reduced, the steel mesh layer further has high toughness and stability, and automobile body metal plates cannot deform even after baking; the technical problems that an existing reinforcing film is poor in reinforcing effect and cannot meet the requirements of being good in reinforcing effect, reducing the weight of a vehicle body and avoiding deformation of a vehicle body metal plate at the same time are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, particularly relates to an automobile reinforcing film and an automobile door using the same. BACKGROUND

[0002] In the automobile manufacturing process, the impact strength of some automobile key components and weak components is low, which increases the safety risk of passengers. Therefore, automobile manufacturers will reinforce automobile components such as the vehicle body, the door panel, the side wall of the vehicle body after welding, and the door part (including the A column, the B column, the C column, the front wall, and the side wall, etc.) to improve the impact strength of these automobile components and avoid serious injuries to passengers when the vehicle collides or is subjected to other external forces. At present, reinforcing films have been widely used for automobile reinforcement. However, the existing reinforcing films are mostly made of rubber materials. However, the reinforcing film made of rubber will become hard during the curing process, and the toughness of the film is not enough, which causes internal stress between the reinforcing film and the panel, resulting in deformation of the vehicle body panel. In addition, the reinforcing effect of the existing reinforcing film is not ideal, and it cannot simultaneously meet the requirements of good reinforcing effect, lightening the weight of the vehicle body, and preventing the deformation of the vehicle body panel. SUMMARY

[0003] The main purpose of the utility model is to provide an automobile reinforcing film with good reinforcing effect and light weight, which will not cause deformation of the vehicle body panel after baking. The technical problem of the existing reinforcing film with poor reinforcing effect, which cannot simultaneously meet the requirements of good reinforcing effect, lightening the weight of the vehicle body, and preventing the deformation of the vehicle body panel, is solved.

[0004] Another purpose of the utility model is to provide an automobile door using the above-mentioned automobile reinforcing film. The automobile door has high strength, can reduce the weight of the door, and the panel at the position where the automobile reinforcing film is used will not deform. The technical problem of the existing reinforcing film on the market with poor reinforcing effect, which cannot simultaneously meet the requirements of good reinforcing effect, lightening the weight of the door, and preventing the deformation of the door panel, is solved.

[0005] To achieve the above-mentioned purpose, the utility model provides an automobile reinforcing film, which comprises a fiber cloth layer, a first reinforcing foam layer, a steel mesh layer, a second reinforcing foam layer, and an isolation layer arranged in sequence.

[0006] The steel mesh layer is provided with mesh holes through which the first reinforcing foam layer and the second reinforcing foam layer expand.

[0007] Optionally, the thickness of the first reinforcing foam layer and the thickness of the second reinforcing foam layer are both greater than the thickness of the steel mesh layer.

[0008] Optionally, the thickness of the first reinforcing foam layer and the thickness of the second reinforcing foam layer are both 1mm.

[0009] The thickness of the steel mesh layer is 0.2mm.

[0010] Optionally, the shape of the mesh hole is circular, and the aperture of the mesh hole is 0.2mm.

[0011] Optionally, the mesh holes are uniformly distributed in the steel mesh layer, and the shape and size of each mesh hole are the same.

[0012] Optionally, the thickness of the first reinforcing foam layer and the thickness of the second reinforcing foam layer are the same.

[0013] Optionally, the isolation layer is a release paper.

[0014] The utility model discloses still propose a kind of automobile door, use the automobile reinforcing film of any one described above.

[0015] Compared with prior art, the embodiment of the utility model has the following beneficial effects:

[0016] 1, the reinforcing effect of the automobile reinforcing film is good, and the impact resistance of automobile component is improved by the high-temperature curing of the first reinforcing foam layer and the second reinforcing foam layer, which can play a reinforcing effect, and the first reinforcing foam layer and the second reinforcing foam layer firmly fix the steel mesh layer on the automobile component.

[0017] 2, the first reinforcing foam layer, the steel mesh layer and the second reinforcing foam layer can play a bonding role by being arranged between the first reinforcing foam layer and the second reinforcing foam layer, and the automobile reinforcing film and the automobile component have good bonding effect under the joint action of the three, and the automobile reinforcing film is not easy to fall off after bonding, and the automobile component will not fall off even in high temperature state and has certain peel strength.

[0018] 3, the automobile reinforcing film and the flat sheet metal and the curved sheet metal have high compatibility, and the first reinforcing foam layer and the second reinforcing foam layer can be filled into the recessed part of the automobile component after thermal expansion, and can be used for automobile components with concave and convex surfaces, not only having reinforcing effect, but also having sound reduction, shock absorption and sound insulation effects. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view of the automobile reinforcing film of the embodiment of the utility model;

[0020] Figure 2The utility model discloses a structure diagram of automobile reinforcing film of one embodiment.

[0021] 1, fiber cloth layer, 2, first reinforcing foaming layer, 3, steel mesh layer, 31, mesh hole, 4, second reinforcing foaming layer, 5, isolation layer. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0024] In the utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal communication of two elements or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] In addition, in the utility model, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, for example, "A and / or B", which includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0026] The utility model provides a kind of automobile reinforcing film.

[0027] In the embodiment of the utility model, as shown in Figure 1 And 2 As shown, the automobile reinforcing film comprises a fiber cloth layer 1, a first reinforcing foaming layer 2, a steel mesh layer 3, a second reinforcing foaming layer 4 and an isolation layer 5 which are sequentially stacked.

[0028] The steel mesh layer 3 is provided with mesh holes 31 through which the first reinforcing foaming layer 2 and the second reinforcing foaming layer 4 expand.

[0029] The fiber cloth layer 1 of the automobile reinforcing film can play a role of preventing adhesion, facilitate production operation and improve production efficiency. When the automobile reinforcing film is used, the isolation layer 5 is removed first, and then the automobile reinforcing film is attached to the automobile part and enters a high-temperature baking process together with the automobile part. After entering the high-temperature baking process, the first reinforcing foaming layer 2 and the second reinforcing foaming layer 4 expand under heat, pass through the mesh holes 31 of the steel mesh layer 3 and are closely attached. After the first reinforcing foaming layer 2 and the second reinforcing foaming layer 4 are attached (at this time, the steel mesh layer 3 is arranged between the first reinforcing foaming layer 2 and the second reinforcing foaming layer 4), the second reinforcing foaming layer 4 expands under heat and is filled into the automobile part, and is closely bonded to the automobile part.

[0030] The first reinforcing foaming layer 2 and the second reinforcing foaming layer 4 play a reinforcing effect after high-temperature curing, and at the same time, the first reinforcing foaming layer 2 and the second reinforcing foaming layer 4 firmly fix the steel mesh layer 3 on the automobile part. The arrangement of the steel mesh layer 3 also provides strength and rigidity for the automobile part, further improving the impact resistance of the automobile part. Therefore, the automobile reinforcing film has good reinforcing effect and improves the impact resistance of the automobile part. The steel mesh layer 3 is arranged between the first reinforcing foaming layer 2 and the second reinforcing foaming layer 4, and the first reinforcing foaming layer 2, the steel mesh layer 3 and the second reinforcing foaming layer 4 can play a bonding effect. Under the joint action of the three, the automobile reinforcing film has good bonding effect with the automobile part, and after bonding, the automobile reinforcing film is not easy to fall off, and the automobile part will not fall off even in a high-temperature state and has a certain peeling strength. The steel mesh layer 3 is relatively light in weight, which can reduce the overall weight of the vehicle body. The steel mesh layer 3 also has high toughness and stability, and its shape and size are not easy to change after baking, so it will not cause deformation of the vehicle body sheet metal even after baking. In addition, the automobile reinforcing film has high compatibility with flat sheet metal and curved sheet metal, and the first reinforcing foaming layer 2 and the second reinforcing foaming layer 4 can be filled into the recessed parts of the automobile part after expanding under heat, which can be used for automobile parts with concave and convex surfaces. Not only has reinforcing effect, but also has the effects of sound reduction, shock absorption and sound insulation. The automobile reinforcing film is designed according to the actual shape and size of the automobile part, so it has the characteristics of shape diversification. In addition, it also has the characteristics of simple and convenient assembly, low cost, long service life and safe and reliable use process.

[0031] The automobile reinforcing adhesive sheet has good reinforcing effect, is light in weight, and does not cause deformation of the body sheet metal after baking, thereby solving the technical problems of poor reinforcing effect of the existing reinforcing adhesive sheet, and inability to simultaneously meet the requirements of good reinforcing effect, light weight of the automobile body, and no deformation of the body sheet metal.

[0032] Further, in the actual production process, the fiber cloth layer 1, the first reinforcing foam layer 2, the steel mesh layer 3, and the second reinforcing foam layer 4 are sequentially stacked, and after being pressed by a roller, the first reinforcing foam layer 2 and the second reinforcing foam layer 4 are completely bonded, and the steel mesh layer 3 is sandwiched therebetween, and then is laid on the isolation layer 5, so as to be easily removed during construction. The first reinforcing foam layer 2 and the second reinforcing foam layer 4 can be cured at high temperature.

[0033] As shown in FIGS. Figure 1 and 2 In an embodiment of the present application, the thickness of the first reinforcing foam layer 2 and the thickness of the second reinforcing foam layer 4 are both greater than the thickness of the steel mesh layer 3.

[0034] The thickness of the first reinforcing foam layer 2 and the thickness of the second reinforcing foam layer 4 are both greater than the thickness of the steel mesh layer 3, the first reinforcing foam layer 2 and the second reinforcing foam layer 4 with greater thickness can absorb more heat and expand more significantly when heated, and after curing, can better improve the strength of the automobile parts, in addition, the first reinforcing foam layer 2 and the second reinforcing foam layer 4 with greater thickness can provide stronger adhesion, thereby improving the adhesion effect of the automobile reinforcing adhesive sheet and the automobile parts, and ensuring firm adhesion therebetween.

[0035] Further, the first reinforcing foam layer 2, the steel mesh layer 3, and the second reinforcing foam layer 4 can have adhesion, and still have adhesion when the temperature exceeds 150℃, can ensure that the automobile parts do not fall off and have a certain peeling strength, and ensure that the automobile reinforcing adhesive sheet and the automobile parts are tightly bonded, and thus the automobile reinforcing adhesive sheet has high stability and reliability.

[0036] In an embodiment of the present application, the thickness of the first reinforcing foam layer 2 and the thickness of the second reinforcing foam layer 4 are both 1mm.

[0037] The thickness of the steel mesh layer 3 is 0.2mm.

[0038] When the thickness of the first reinforcing foam layer 2 and the thickness of the second reinforcing foam layer 4 are both 1mm, the good foaming and expanding effect, reinforcing effect, and good adhesion effect can be ensured; and when the thickness of the steel mesh layer 3 is 0.2mm, the strength and rigidity of the automobile reinforcing adhesive sheet can be high, and the automobile reinforcing adhesive sheet can withstand external impact force, and play a role of reinforcing the automobile.

[0039] In an embodiment of the present application, the shape of the mesh hole 31 is circular, and the aperture of the mesh hole 31 is 0.2mm.

[0040] The shape of the mesh hole 31 is circular, and the mesh hole 31 has a diameter of 0.2 mm. In this way, the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4 can smoothly pass through the steel mesh layer 3, and the second reinforcing foamed layer 4 can be firmly adhered to the automobile part. In addition, the steel mesh layer 3 has a certain strength and rigidity, which ensures that it can play a reinforcing role and improve the quality and reliability of the product.

[0041] As shown in FIG. 1, in an embodiment of the present application, the mesh holes 31 are uniformly distributed in the steel mesh layer 3, and the shape and size of each mesh hole 31 are the same. Figure 2

[0042] The mesh holes 31 of the steel mesh layer 3 are uniformly distributed, so that the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4 can more evenly pass through the steel mesh layer 3 after thermal expansion, thereby providing more uniform strength and rigidity for the automobile part and improving the quality and reliability of the product. In addition, the uniformly distributed mesh holes 31, and the shape and size of each mesh hole 31 being the same, can simplify the production mold and reduce production costs.

[0043] In an embodiment of the present application, the thickness of the first reinforcing foamed layer 2 and the thickness of the second reinforcing foamed layer 4 are the same.

[0044] The first reinforcing foamed layer 2 and the second reinforcing foamed layer 4 have the same thickness, and when they are thermally expanded, the steel mesh layer 3 is tightly sandwiched between the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4, which can make the automobile reinforcing film more stable and tightly attached to the automobile part, reducing the risk of interlayer separation and automobile part falling off. In addition, since the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4 have the same thickness, the production steps can be simplified, and the manufacturing cost can be reduced.

[0045] Specifically, the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4 are made of the same material. The first reinforcing foamed layer 2 and the second reinforcing foamed layer 4 are made of the same material, which has the same physical and chemical properties and consistent performance, so as to further enhance the reinforcing effect and improve the reliability and stability of the automobile reinforcing film.

[0046] ​Further, the material of the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4 is a high-temperature expandable material mixed by rubber (CR, BR, etc.) polymer, foaming agent, crosslinking agent, filler, etc. For example, in an embodiment of the present application, the raw material composition of the polyethylene / rubber expansion block for automobile disclosed in patent No. CN102030940A is used as the raw material composition of the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4. In another embodiment of the present application, the raw material composition of the physical foaming rubber block for cavity filling disclosed in patent No. CN103589019A can also be used as the raw material composition of the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4. Further, when considering the raw material composition of the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4, the addition amount of the foaming agent and the influence of the expansion rate should also be considered.

[0047] Further, the curing temperature of the first reinforcing foamed layer 2 and the second reinforcing foamed layer 4 is 140-170℃, the reinforcing ratio is 8-12 times, and the foaming ratio is 0.5-0.8 times.

[0048] The first reinforcing foamed layer 2 and the second reinforcing foamed layer 4 with the curing temperature of 140-170℃, the reinforcing ratio of 8-12 times, and the foaming ratio of 0.5-0.8 times can achieve good reinforcing effect after curing, so that the impact strength of the automobile part is higher, and the appropriate foaming ratio can also make the automobile reinforcing film have good sound attenuation and shock absorption effect, and can also improve the stability and reliability of the automobile reinforcing film.

[0049] In an embodiment of the present application, the isolation layer 5 is release paper.

[0050] The isolation layer 5 is release paper, which can effectively isolate the automobile reinforcing film from the external environment, protect the second reinforcing foamed layer 4 from being contaminated before use of the automobile reinforcing film, and facilitate the production personnel to take the automobile reinforcing film, facilitate production operation, and facilitate the automobile reinforcing film to be accurately attached to the specific part after removal of the isolation layer 5, thereby improving the production efficiency.

[0051] The embodiment of the present application also provides an automobile door using any one of the automobile reinforcing films.

[0052] The automobile reinforcing adhesive sheet can be attached to the planar metal plate or the curved metal plate of the door, has high fitting degree with the planar metal plate and the curved metal plate, can be filled into the recessed part of the door, can be used for the door with the concave-convex surface, has the reinforcing, sound-damping and shock-absorbing effects, has the sound insulation effect, improves the strength of the door, can reduce the weight of the door, and the metal plate at the position where the automobile reinforcing adhesive sheet is used will not be deformed.

[0053] Further, the shape and size of the automobile reinforcing adhesive sheet are matched with the actual shape and size of the reinforcing part of the automobile.

[0054] The specific use process of the automobile reinforcing adhesive sheet is as follows:

[0055] In use, the isolation layer 5 is removed first, and then the fiber cloth layer 1, the first reinforcing foam layer 2, the steel mesh layer 3 and the second reinforcing foam layer 4 are attached to the door metal plate, at this time, the second reinforcing foam layer 4 is attached to the door metal plate, and the fiber cloth layer 1, the first reinforcing foam layer 2, the steel mesh layer 3 and the second reinforcing foam layer 4 are together into the high-temperature baking process, the first reinforcing foam layer 2 and the second reinforcing foam layer 4 are heated and cured to expand, and the automobile reinforcing adhesive sheet is tightly bonded to the door metal plate.

[0056] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the present application.

Claims

1. An automotive reinforcement patch, characterized by, The automobile reinforcing adhesive sheet comprises a fiber cloth layer, a first reinforcing foam layer, a steel mesh layer, a second reinforcing foam layer and a release layer which are sequentially stacked. The steel mesh layer is provided with mesh holes through which the first reinforcing foam layer and the second reinforcing foam layer expand.

2. The automotive reinforcement patch of claim 1, wherein, The thickness of the first reinforcing foam layer and the thickness of the second reinforcing foam layer are both greater than the thickness of the steel mesh layer.

3. The automotive reinforcement patch of claim 2, wherein, The thickness of the first reinforcing foam layer and the thickness of the second reinforcing foam layer are both 1mm. The thickness of the steel mesh layer is 0.2mm.

4. The automotive reinforcement patch of claim 1, wherein, The shape of the mesh holes is circular, and the aperture of the mesh holes is 0.2mm.

5. The automotive reinforcement patch of claim 4, wherein, The mesh holes are uniformly distributed on the steel mesh layer, and the shape and size of each mesh hole are the same.

6. The automotive reinforcement patch of claim 5, wherein, The thickness of the first reinforcing foam layer and the thickness of the second reinforcing foam layer are the same.

7. The automotive reinforcement patch of claim 1, wherein, The release layer is a release paper.

8. A vehicle door, characterized by The automobile reinforcing adhesive sheet is used as a reinforcing adhesive sheet for automobiles.

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