PVC (polyvinyl chloride) automotive trim skin with stick-slip property and abnormal sound reduction effect

Abstract

The utility model provides a PVC (Polyvinyl Chloride) automotive trim skin with a stick-slip property and an abnormal sound reducing effect, which belongs to the technical field of automotive trim skins and comprises a PU (Poly Urethane) foam layer, an outer skin layer and a PVC layer, and the PU foam layer is positioned between the outer skin layer and the PVC layer; the groove is formed in the top of the PU foam layer; the sponge block and the air bag are arranged in the groove, and the sponge block is located in the air bag; the sponge tube is integrally formed in the center of the top of the sponge block; the lubricant storage cavity is formed in the sponge block; lubricating oil can be temporarily stored through the adsorption capacity of the sponge block to the lubricating oil, a lubricating agent can be extruded to a contact friction area through the oil injection hole under the action of extrusion force generated after the outer skin layer makes contact with other parts, the smoothness of the outer surface of the outer skin layer is improved through the lubricating agent, and the service life of the lubricating oil is prolonged. The friction coefficient between the outer skin layer and other contact parts is reduced, and the friction abnormal sound during relative sliding is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of automotive interior skin technology, specifically relating to a PVC automotive interior skin with a slippery and noise-reducing effect. Background Technology

[0002] Automotive interior trim refers to the various leather materials used in the interior decoration of automobiles. These materials not only affect the aesthetics and comfort of the car, but also involve requirements for safety and environmental protection.

[0003] Existing car interior panels come into contact with some car interior components during use. As the car vibrates while driving, the vibrations cause the interior panels to rub against and slide against other parts, which can produce abnormal noises. These noises can make the driver and passengers in the car feel uncomfortable.

[0004] Therefore, a PVC automotive interior trim with a sticky and slippery texture that reduces noise is proposed. Summary of the Invention

[0005] This invention provides a PVC automotive interior trim with a slippery, noise-reducing effect, which aims to solve the aforementioned problems.

[0006] This utility model provides a PVC automotive interior trim with a slip-resistant and noise-reducing effect, comprising a PU foam layer, an outer skin layer, and a PVC layer, wherein the PU foam layer is located between the outer skin layer and the PVC layer; a groove is formed at the top of the PU foam layer; a sponge block and an airbag are disposed inside the groove, the sponge block being located at the airbag's location; a sponge tube integrally formed at the center of the top of the sponge block; a lubricant storage cavity formed inside the sponge block; an oil injection hole extending through the top of the outer skin layer; a mesh frame layer at the bottom of the PVC layer; and an adhesive filling hole formed at the bottom of the PVC layer near the inner side of the mesh frame layer.

[0007] Furthermore, the lubricant storage cavity and the oil injection hole are connected, and the interior of the lubricant storage cavity is filled with lubricant;

[0008] By adopting the above technical solution, the lubricant storage cavity provides storage space for the lubricant, which facilitates the lubricant to flow out under pressure, increases the smoothness of the outer surface of the outer skin layer, reduces the coefficient of friction between the outer skin layer and other contact parts (such as plastic parts and metal parts), and reduces friction noise during relative sliding.

[0009] Furthermore, the grid layer is composed of several horizontal bars and several vertical bars that intersect each other perpendicularly;

[0010] By adopting the above technical solution, a mesh structure can be formed, ensuring that the mesh layer can be evenly attached to the fixed position.

[0011] Furthermore, the airbag has a hollow elliptical structure and is made of rubber.

[0012] By adopting the above technical solution, the air filled inside the airbag gives it the ability to deform, thus ensuring its cushioning effect.

[0013] Furthermore, the center of the oil injection hole and the center of the sponge tube are on the same axis and connected to each other;

[0014] By adopting the above technical solution, the lubricant can be discharged through the oil injection hole 9 after passing through the sponge tube.

[0015] Furthermore, an adhesive layer is provided at the bottom of the space frame layer;

[0016] By adopting the above technical solution, the PVC automotive interior skin can be adhered and absorbed to the required installation location through the adhesive layer.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention utilizes the absorbent capacity of a sponge block to temporarily store lubricating oil. Furthermore, the pressure exerted by the outer skin layer upon contact with other components forces the lubricant through the injection hole into the contact friction area. This lubricant increases the smoothness of the outer surface of the skin layer, reducing the coefficient of friction between the skin layer and other contacting components, thus minimizing frictional noise during relative sliding. The interplay between the mesh layer and the adhesive filling holes achieves double adhesion, ensuring the automotive interior skin adheres evenly to the interior components, guaranteeing a strong bond, and preventing frictional noise caused by minute displacements.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram showing the fit between the PVC layer and the mesh layer in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the PU foam layer structure according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the sponge block structure according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the sponge block according to an embodiment of the present utility model;

[0026] Reference numerals: 1. PU foam layer; 2. Outer skin layer; 3. PVC layer; 4. Groove; 5. Sponge block; 6. Airbag; 7. Sponge tube; 8. Lubricant storage cavity; 9. Oil injection hole; 10. Frame layer; 11. Glue filling hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Reference Figure 1-5This utility model embodiment proposes a PVC automotive interior skin with a slippery and noise-reducing effect, including a PU foam layer 1, an outer skin layer 2 on top of the PU foam layer 1, and a PVC layer 3 at the bottom of the PU foam layer 1. A groove 4 is formed on the top of the PU foam layer 1 near the lower part of the outer skin layer 2. A sponge block 5 and an airbag 6 are placed inside the groove 4. The airbag 6 has a hollow elliptical structure and is made of rubber. The air filling inside the airbag 6 gives it deformability, ensuring a cushioning effect. The sponge block 5 is located below the airbag 6, and a sponge tube 7 is provided at the center of the top of the sponge block 5. A lubricant storage cavity 8 is provided inside the sponge block 5. An oil filling hole 9 is formed on the top of the outer skin layer 2 near the top of the sponge tube 7. The lubricant storage cavity 8 and the oil filling hole 9 are connected, and the lubricant storage cavity 8 is filled with... The lubricant is stored in the lubricant storage cavity 8, which facilitates the lubricant to flow out under pressure, increasing the smoothness of the outer surface of the outer skin layer 2, reducing the coefficient of friction between the outer skin layer 2 and other contact parts (such as plastic parts and metal parts), and reducing friction noise during relative sliding. The center of the oil injection hole 9 and the center of the sponge tube 7 are on the same axis and connected, which facilitates the lubricant to pass through the sponge tube 7 and be discharged through the oil injection hole 9. The bottom of the PVC layer 3 is provided with a mesh frame layer 10, which is composed of several horizontal and several vertical strips that intersect perpendicularly to form a mesh structure, ensuring that the mesh frame layer 10 can be evenly attached to the fixed position. The bottom of the PVC layer 3 is provided with an adhesive filling hole 11 near the inner side of the mesh frame layer 10. The bottom of the mesh frame layer 10 is provided with an adhesive layer, which can be used to adhere and adsorb the PVC automotive interior skin to the required installation position.

[0029] The specific implementation method is as follows: When using PVC automotive interior skin, glue is squeezed onto the PVC layer 3, and part of the glue fills the glue filling hole 11, adsorbing the PVC layer 3 onto the automotive interior parts. Utilizing the adhesive properties of the glue, the PVC automotive interior skin is fixed onto the automotive interior parts. An external syringe is used to draw lubricant and inject it into the oil injection hole 9 on the contact surface between the outer skin layer 2 and other contact parts. The needle on the syringe is inserted into the oil injection hole 9 and then into the lubricant storage cavity 8, squeezing the lubricant into the lubricant storage cavity 8. After the setup is completed, when the outer skin layer 2 comes into contact with and is squeezed by other parts, the outer skin layer 2 deforms under pressure. The airbag 6 buffers the squeezing force and transmits part of the squeezing force to the sponge block 5. After the sponge block 5 is compressed, the lubricant adsorbed on the sponge block 5 is discharged through the oil injection hole 9. The lubricant fills the space between the outer skin layer 2 and other parts, reducing the coefficient of friction between the outer skin layer 2 and other contact parts, and reducing friction noise during relative sliding.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A PVC automotive interior trim with a slippery, noise-reducing effect, characterized in that: It includes a PU foam layer (1), an outer skin layer (2) and a PVC layer (3), wherein the PU foam layer (1) is located between the outer skin layer (2) and the PVC layer (3); A groove (4) is formed on the top of the PU foam layer (1); A sponge block (5) and an airbag (6) are disposed inside the groove (4), with the sponge block (5) located below the airbag (6); The sponge tube (7) is integrally formed at the center of the top of the sponge block (5); and A lubricant storage cavity (8) is formed inside the sponge block (5); An oil injection hole (9) is opened through the top of the outer skin layer (2); A mesh layer (10) is disposed at the bottom of the PVC layer (3); and An adhesive filling hole (11) is opened at the bottom of the PVC layer (3) near the inner side of the mesh layer (10).

2. The PVC automotive interior skin having stick-slip noise reduction effect according to claim 1, characterized in that: The lubricant storage cavity (8) and the oil injection hole (9) are connected, and the interior of the lubricant storage cavity (8) is filled with lubricant.

3. The PVC automotive interior skin having stick-slip noise reduction effect according to claim 1, characterized in that: The grid layer (10) is composed of several horizontal bars and several vertical bars that intersect each other perpendicularly.

4. The PVC automotive interior skin having stick-slip noise reduction effect according to claim 1, characterized in that: The airbag (6) is a hollow elliptical structure and is made of rubber.

5. The PVC automotive interior skin having stick-slip noise reduction effect according to claim 1, characterized in that: The center of the oil injection hole (9) and the center of the sponge tube (7) are on the same axis and connected.

6. The PVC automotive interior skin having stick-slip noise reduction effect according to claim 1, characterized in that: An adhesive layer is provided at the bottom of the space frame layer (10).

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