Vehicle roof cloth structure and vehicle

Abstract

The utility model provides a vehicle roof cloth structure and a vehicle. The vehicle roof cloth structure comprises a fabric layer, a framework layer and a base cloth layer which are sequentially stacked together. The skeleton layer comprises a skeleton body located in the middle, and a first fiber layer and a second fiber layer which are arranged on the two sides of the skeleton body respectively; the first fiber layer and the second fiber layer are both made of natural fibers, the first fiber layer is bonded between the fabric layer and the framework body through a polyurethane adhesive, and the second fiber layer is bonded between the bottom cloth layer and the framework body through a polyurethane adhesive. According to the vehicle roof cloth structure, light weight and environmental protection of a roof are facilitated, the connection strength among the fabric layer, the bottom cloth layer and the framework layer is improved, meanwhile, the structural stability of the roof in a high-temperature environment can be improved by means of the high-temperature-resistant characteristic of the polyurethane adhesive, and by means of the foaming characteristic of the polyurethane adhesive, the structural stability of the roof in a high-temperature environment can be improved. Holes and gaps in the natural fibers can be filled, and better mildew resistance and waterproofness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to a vehicle roof cloth structure. Meanwhile, the utility model also relates to a vehicle provided with the vehicle roof cloth structure. Background Art

[0002] The car's ceiling cloth is an important part of the car's interior. It mainly serves as a decoration and is coordinated with the color and texture of the car's interior. At the same time, the ceiling cloth also has the functions of heat insulation, sound insulation, sound absorption and vibration reduction, which can improve the comfort and safety of passengers.

[0003] At present, automobile ceiling fabrics are usually composed of fabric and skeleton layer. The fabric is mostly made of non-woven fabric, woven fabric, PVC film, organic fabric, knitted fabric, artificial leather and other materials. The skeleton layer is mostly made of glass fiber reinforced polypropylene composite board, hemp fiber reinforced molded board, glass fiber reinforced polyurethane foam composite board, hemp fiber polyurethane foam composite board and the like.

[0004] In the prior art, glass fiber reinforced polypropylene composite panels, glass fiber reinforced polyurethane rigid foam composite panels, hemp fiber reinforced polyurethane molded panels, etc. need to be produced using a hot material cold mold (dry method), that is, the skeleton layer is evenly heated, the fabric layer is laid on its surface, and then the mold is used to cool and shape it to form the desired ceiling surface shape.

[0005] However, the ceiling cloth produced by the dry process has poor temperature resistance (in hot weather, the ceiling cloth will soften after being heated, and the weight of the ceiling cloth will cause it to deform and collapse). In addition, the ceiling cloth containing glass fiber is not environmentally friendly and is not conducive to the recycling of the ceiling cloth. The ceiling cloth containing hemp fiber is easy to absorb water and cause mildew on the ceiling due to the holes and gaps between the hemp fibers. In addition, in order to ensure the rigidity and stiffness of the car roof, the amount of thermoplastic agent used needs to be increased, which will make the finished roof heavier, deviating from the design concept of lightweight vehicles. Utility Model Content

[0006] In view of this, the utility model aims to provide a vehicle roof cloth structure, which is conducive to lightweight design and has good environmental protection and durability.

[0007] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0008] A vehicle roof fabric structure comprises a fabric layer, a frame layer and a base fabric layer stacked in sequence; the frame layer comprises a frame body located in the middle, and a first fiber layer and a second fiber layer respectively arranged on both sides of the frame body; the first fiber layer and the second fiber layer are both made of natural fibers, the first fiber layer is bonded between the fabric layer and the frame body by a polyurethane adhesive, and the second fiber layer is bonded between the base fabric layer and the frame body by a polyurethane adhesive.

[0009] Furthermore, the natural fibers in the first fiber layer and the second fiber layer are bonded together by resin.

[0010] Furthermore, the resin is polypropylene resin.

[0011] Furthermore, the fabric layer includes a main body layer, and the main body layer is made of non-woven fabric or knitted fabric.

[0012] Furthermore, the fabric layer includes a sponge layer and a non-woven fabric layer which are sequentially arranged on the main body layer, and the fabric layer is connected to the first fiber layer on the corresponding side through the non-woven fabric layer.

[0013] Furthermore, the base fabric layer is made of one of needle-punched non-woven fabric, spunlace non-woven fabric and hot-rolled non-woven fabric; and / or the skeleton body includes polyurethane foam.

[0014] Furthermore, the thickness of the first fiber layer is between 0.5 mm and 1 mm; and / or the thickness of the second fiber layer is between 0.8 mm and 1.2 mm.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The vehicle roof cloth structure described in the utility model is that the first fiber layer is bonded between the fabric layer and the frame body by polyurethane adhesive, and the second fiber layer is bonded between the base fabric layer and the frame body by polyurethane adhesive, which is not only conducive to improving the connection strength between the fabric layer, the base fabric layer and the frame layer, but also can utilize the high temperature resistance of polyurethane adhesive to improve the structural stability of the ceiling in a high temperature environment, and solve the problem that the ceiling is easy to deform and collapse in a high temperature environment; compared with the solution of arranging glass fiber on the frame layer in the prior art, it is also conducive to the lightweight and environmental protection of the vehicle roof cloth structure. At the same time, the foaming characteristics of polyurethane adhesive can be used to fill the holes and gaps inside the natural fiber, and compared with the ordinary ceiling using hemp fiber, it has better mildew resistance and waterproofness.

[0017] In addition, the natural fibers are bonded together by the resin, which is beneficial to improving the structural strength of the first fiber layer and the second fiber layer, and is also beneficial to the arrangement and connection of the first fiber layer and the second fiber layer. The resin is polypropylene resin, which is beneficial to improving the durability of the natural fibers, and by utilizing the characteristic that the polypropylene resin hardly absorbs water, it can also improve the waterproofness of the first fiber layer and the second fiber layer, thereby having good corrosion resistance. At the same time, the polypropylene resin can also help the natural fiber material maintain its shape and size when it is humid or the temperature changes, thereby ensuring the structural stability of the first fiber layer and the second fiber layer.

[0018] In addition, the main layer in the fabric layer is made of non-woven fabric or knitted fabric, which is convenient for layout and implementation, and has a good use effect. The setting of the sponge layer in the main layer is conducive to improving the feel and refinement of the roof cloth structure, so that the fabric layer is connected to the first fiber layer on the corresponding side through the non-woven fabric layer, which is conducive to preventing the polyurethane adhesive from entering the sponge layer, thereby ensuring the feel of the sponge layer. Needle-punched non-woven fabrics, spunlace non-woven fabrics, and hot-rolled non-woven fabrics all have good comfort and environmental protection, and are also conducive to the lightweight design of the base fabric layer, and are easy to arrange and implement. The setting of the thickness range of the first fiber layer and the thickness range of the second fiber layer are conducive to reducing the weight of the first fiber layer and the second fiber layer, which is further conducive to the lightweight design of the vehicle roof cloth structure.

[0019] In addition, another object of the present invention is to provide a vehicle, in which the vehicle roof cloth structure as described above is provided.

[0020] The vehicle described in the utility model is provided with the vehicle roof cloth structure as described above, which is beneficial to improving the use performance of the vehicle roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0022] Figure 1 This is a structural schematic diagram of a vehicle roof cloth structure according to an embodiment of the utility model;

[0023] Figure 2 This is a schematic structural diagram of the fabric layer described in an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Fabric layer; 2. Frame layer; 3. Base layer; 4. First adhesive layer; 5. Second adhesive layer; 6. Third adhesive layer; 7. Fourth adhesive layer;

[0026] 101, main body layer; 102, sponge layer; 103, non-woven fabric layer;

[0027] 201, first fiber layer; 202, skeleton body; 203, second fiber layer. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] In the description of the present utility model, it should be noted that the directional words such as "up, down, left, right, front, and back" used in the present embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the automobile. Among them, the up-down direction of the automobile is also the height direction of the automobile (Z direction), the front-back direction of the automobile is also the length direction of the automobile (X direction), and the left-right direction of the automobile is also the width direction of the automobile (Y direction). In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] The present embodiment relates to a vehicle roof cloth structure, which is conducive to lightweight design and has good environmental protection and durability.

[0033] In terms of overall composition, Figure 1 As shown in , the vehicle roof fabric structure includes a fabric layer 1, a frame layer 2 and a base fabric layer 3 stacked together in sequence. The frame layer 2 includes a frame body 202 located in the middle, and a first fiber layer 201 and a second fiber layer 203 respectively arranged on both sides of the frame body 202. The first fiber layer 201 and the second fiber layer 203 are both made of natural fibers, and the first fiber layer 201 is bonded between the fabric layer 1 and the frame body 202 by a polyurethane adhesive, and the second fiber layer 203 is bonded between the base fabric layer 3 and the frame body 202 by a polyurethane adhesive.

[0034] In the vehicle ceiling cloth structure described in this embodiment, the first fiber layer 201 is bonded between the fabric layer 1 and the frame body 202 by polyurethane adhesive, and the second fiber layer 203 is bonded between the base fabric layer 3 and the frame body 202 by polyurethane adhesive, which is not only conducive to improving the connection strength between the fabric layer 1, the base fabric layer 3 and the frame layer 2, but also can utilize the high temperature resistance of polyurethane adhesive to improve the structural stability of the ceiling in a high temperature environment and solve the problem that the ceiling is easy to deform and collapse in a high temperature environment. Compared with the solution of arranging glass fiber on the frame layer 2 in the prior art, it is also conducive to the lightweight and environmental protection of the vehicle ceiling cloth structure. At the same time, the foaming characteristics of polyurethane adhesive can be utilized to fill the holes and gaps inside the natural fiber. Compared with the traditional ceiling cloth using hemp fiber, it has better mildew resistance and waterproofness.

[0035] As a preferred embodiment, the natural fibers in the first fiber layer 201 and the second fiber layer 203 are bonded together by resin in this embodiment, which is beneficial to improve the structural strength of the first fiber layer 201 and the second fiber layer 203, and is also beneficial to the arrangement and connection of the first fiber layer 201 and the second fiber layer 203.

[0036] As a feasible implementation, the natural fiber in this embodiment can be, for example, hemp fiber, bamboo fiber or wood fiber, and the resin is preferably polypropylene resin. The resin is polypropylene resin, which is conducive to improving the durability of the natural fiber, and by utilizing the characteristic that the polypropylene resin hardly absorbs water, the waterproofness of the first fiber layer 201 and the second fiber layer 203 can be further improved, thereby having good corrosion resistance. At the same time, the polypropylene resin can also help the natural fiber material maintain its shape and size when it is humid or the temperature changes, thereby ensuring the structural stability of the first fiber layer 201 and the second fiber layer 203.

[0037] In a specific implementation, taking hemp fiber as an example of natural fiber, hemp fiber and resin are mixed to form a composite material, wherein the resin is the matrix and the hemp fiber is the reinforced composite material. In specific processing, the hemp fiber and the polypropylene resin fiber are mixed and rolled by a heated roller or a pressing plate, and then pressed into a sheet-like fiber layer by a cold plate. The first fiber layer 201 and the second fiber layer 203 are both in sheet form, which is not only conducive to improving the rigidity of the two, but also conducive to evenly applying polyurethane adhesive on the surfaces of the two.

[0038] In this embodiment, the density of the first fiber layer 201 and the second fiber layer 203 is 80-150 g / m 2 , for example, the density can be 80g / m 2 , 90g / m 2 , 100g / m 2 , 120g / m 2 , 140g / m 2Or 150g / m 2 Such an arrangement is beneficial to further reduce the weight of the first fiber layer 201 and the second fiber layer 203.

[0039] In some embodiments, the thickness of the first fiber layer 201 is between 0.5 mm and 1 mm, and the thickness of the second fiber layer 203 is between 0.8 mm and 1.2 mm. The thickness range of the first fiber layer 201 and the thickness range of the second fiber layer 203 are both conducive to reducing the weight of the first fiber layer 201 and the second fiber layer 203, thereby further facilitating the lightweight design of the vehicle roof fabric structure.

[0040] In a specific implementation, for example, the thickness of the first fiber layer 201 is 0.5 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm. The thickness of the second fiber layer 203 can be 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, or 1.2 mm. In addition, the amount of polyurethane adhesive applied on both surfaces of the first fiber layer 201 and the second fiber layer 203 can be determined according to the use requirements. The polyurethane adhesive and water are foamed by thermal reaction to fill the holes and gaps inside the natural fiber. Compared with the ceiling made of ordinary hemp fiber, it has higher mildew resistance and water absorption resistance.

[0041] In this embodiment, the amount of polyurethane adhesive in the adhesive layer at different positions is different. Figure 1 As shown in the figure, the adhesive layer formed by the polyurethane adhesive arranged between the fabric layer 1 and the first fiber layer 201 is called the first adhesive layer 4, the adhesive layer formed by the polyurethane adhesive arranged between the first fiber layer 201 and the skeleton body 202 is called the second adhesive layer 5, the adhesive layer formed by the polyurethane adhesive arranged between the skeleton body 202 and the second fiber layer 203 is called the third adhesive layer 6, and the adhesive layer formed by the polyurethane adhesive arranged between the second fiber layer 203 and the base fabric layer 3 is called the fourth adhesive layer 7.

[0042] Specifically, the coating density of the polyurethane adhesive in the first adhesive layer 4 between the first fiber layer 201 and the fabric layer 1 can be 20-50 g / m 2 For example, the coating density of the polyurethane adhesive here is 20g / m 2 , 30g / m 2 , 40g / m 2 , 45g / m 2 Or 50g / m 2 The coating density of the polyurethane adhesive in the second adhesive layer 5 between the first fiber layer 201 and the skeleton body 202 can be 20-100 g / m 2 For example, the coating density of the polyurethane adhesive here is 20g / m 2 , 30g / m2 , 60g / m 2 , 75g / m 2 , 90g / m 2 Or 100g / m 2 wait.

[0043] The coating density of the urethane adhesive in the third adhesive layer 6 between the second fiber layer 203 and the skeleton body 202 can be 20-100 g / m 2 For example, the coating density of the polyurethane adhesive here is 20g / m 2 , 30g / m 2 , 60g / m 2 , 75g / m 2 , 90g / m 2 Or 100g / m 2 The coating density of the urethane adhesive in the fourth adhesive layer 7 between the second fiber layer 203 and the base fabric layer 3 can be 20-40 g / m 2 For example, the coating density of the polyurethane adhesive here is 20g / m 2 , 25g / m 2 , 30g / m 2 , 35g / m 2 , 38g / m 2 Or 40g / m 2 wait.

[0044] As a preferred embodiment, Figure 2 As shown in , the fabric layer 1 in this embodiment includes a main body layer 101, and the main body layer 101 is made of non-woven fabric or knitted fabric. It is not only conducive to the arrangement and implementation, but also has a good use effect. In some embodiments, as Figure 2 As shown in FIG. 1 , the fabric layer 1 includes a sponge layer 102 and a non-woven fabric layer 103 which are sequentially arranged on the main body layer 101 , and the fabric layer 1 is connected to the first fiber layer 201 on the corresponding side through the non-woven fabric layer 103 .

[0045] Here, the sponge layer 102 is located on the inner side of the main body layer 101, and the non-woven fabric layer 103 is located on the inner side of the sponge layer 102. The sponge layer 102 is provided to improve the feel and refinement of the ceiling fabric structure, so that the fabric layer 1 is connected to the first fiber layer 201 on the corresponding side through the non-woven fabric layer 103, and the good adhesive insulation effect of the non-woven fabric is utilized to prevent the polyurethane adhesive in the first adhesive layer 4 from entering the sponge layer 102, thereby ensuring the feel of the sponge layer 102. It is understandable that, in specific implementation, whether the composition of the fabric layer 1 includes the sponge layer 102 and the non-woven fabric layer 103 can be determined according to the use requirements.

[0046] In this embodiment, the base fabric layer 3 is made of one of needle-punched nonwoven fabric, spunlace nonwoven fabric, and hot-rolled nonwoven fabric. All three types of nonwoven fabrics have good comfort and environmental protection, and are also conducive to the lightweight design of the base fabric layer 3, and are easy to arrange and implement. In addition, the skeleton body 202 in this embodiment includes polyurethane foam, which not only has a high support effect, but also facilitates the lightweight of the vehicle roof cloth. In specific implementation, the density of the polyurethane foam can be 0.02-0.03g / cm 3 The specific thickness is determined according to product requirements. For example, the density of polyurethane foam can be 0.02g / cm 3 , 0.025g / cm 3 or 0.03g / cm 3 .

[0047] In some embodiments, the skeleton body 202 may also be made of a material having a supporting effect, such as a nylon filament composite. In addition to non-woven fabrics, the base fabric layer 3 may also be made of any fabric or non-woven fabric as long as it meets the use requirements.

[0048] The vehicle roof fabric structure in this embodiment can be made by wet process. Specifically, the first fiber layer 201 and the second fiber layer 203 are first sent to the roller glue room by the conveyor belt to roll the polyurethane adhesive on the upper and lower surfaces. The roller glue room requires constant temperature and humidity. For example, the temperature of the roller glue room can be 25±5℃, the humidity can be 50±10; the temperature of the glue barrel can be 45±5℃.

[0049] The first fiber layer 201 and the second fiber layer 203 coated with polyurethane adhesive are sprayed in a spray room respectively, so that the upper and lower surfaces of the two layers are evenly wetted with water, and the amount of water is 40-80% of the amount of polyurethane adhesive. The uniformity of the watering is required to be ≤5g / m 2 , water droplets and other undesirable phenomena are prohibited during the process. Then the layers of materials are stacked together and placed in a mold for compression molding, wherein the mold surface temperature can be 120-150°C and the pressure can be 80-120°F. When heated, the polyurethane adhesive and water will foam and fill the holes and gaps in the fiber layer, making the upper and lower surfaces and surrounding areas of the vehicle roof cloth have good waterproof properties.

[0050] The vehicle roof cloth structure in this embodiment is not only simple in structure, but also realizes the connection between adjacent components through polyurethane adhesive, so that the upper and lower surfaces and the surrounding areas of the skeleton layer 2 have a good waterproof effect, which is further beneficial to improve the waterproofness of the vehicle roof cloth structure, thereby having good corrosion resistance, and is energy-saving and environmentally friendly while also conducive to lightweight design.

[0051] Furthermore, the present embodiment relates to a vehicle in which the vehicle ceiling cloth structure as described above is provided.

[0052] The vehicle described in this embodiment is helpful to improve the performance of the vehicle roof by providing the vehicle roof cloth structure as described above.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle roof fabric structure, characterized in that: It comprises a fabric layer (1), a skeleton layer (2) and a base fabric layer (3) which are stacked in sequence; The skeleton layer (2) comprises a skeleton body (202) located in the middle, and a first fiber layer (201) and a second fiber layer (203) respectively arranged on both sides of the skeleton body (202); The first fiber layer (201) and the second fiber layer (203) are both made of natural fibers; the first fiber layer (201) is bonded between the fabric layer (1) and the frame body (202) by means of a polyurethane adhesive; and the second fiber layer (203) is bonded between the base fabric layer (3) and the frame body (202) by means of a polyurethane adhesive.

2. The vehicle ceiling fabric structure according to claim 1, characterized in that: The natural fibers in the first fiber layer (201) and the second fiber layer (203) are bonded together by resin.

3. The vehicle ceiling fabric structure according to claim 2, characterized in that: The resin is polypropylene resin.

4. The vehicle ceiling fabric structure according to claim 1, characterized in that: The fabric layer (1) comprises a main body layer (101), and the main body layer (101) is made of non-woven fabric or knitted fabric.

5. The vehicle ceiling fabric structure according to claim 4, characterized in that: The fabric layer (1) comprises a sponge layer (102) and a non-woven fabric layer (103) which are sequentially arranged on the main body layer (101); the fabric layer (1) is connected to the first fiber layer (201) on the corresponding side via the non-woven fabric layer (103).

6. The vehicle ceiling fabric structure according to claim 1, characterized in that: The base fabric layer (3) is made of one of needle-punched nonwoven fabric, spunlace nonwoven fabric and hot-rolled nonwoven fabric; and / or, The skeleton body (202) includes polyurethane foam.

7. The vehicle ceiling fabric structure according to any one of claims 1 to 6, characterized in that: The thickness of the first fiber layer (201) is between 0.5 mm and 1 mm; and / or, The thickness of the second fiber layer (203) is between 0.8 mm and 1.2 mm.

8. A vehicle, characterized in that: The vehicle is provided with the vehicle ceiling cloth structure according to any one of claims 1 to 7.

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