Impact-resistant EFP cushion block for automobile lining

Abstract

The utility model discloses an anti-impact EFP cushion block for an automobile lining, and belongs to the technical field of automobile linings. Comprising an anti-impact middle-layer plate, and a first EFP outer-layer plate and a second EFP outer-layer plate which are connected with the two sides of the anti-impact middle-layer plate; the compression-resistant columns in the impact middle-layer plate can increase the rigidity of the EFP cushion block structure and effectively disperse impact force, the small elastic balls and the large elastic balls filled with the non-Newtonian fluid can be instantly hardened under impact to absorb energy and then restore to the original shape, efficient and lasting energy absorption is provided, meanwhile, the EFP material generally has good durability, and the impact middle-layer plate is suitable for being used in the field of building materials. The impact resistance of the EFP cushion block can be kept for a long time, and the impact resistance of the EFP cushion block is greatly improved through cooperation of all the components.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile linings, and specifically relates to an impact-resistant EFP cushion block for automobile linings. Background Technique

[0002] With the rapid development of the automobile industry and the increasing attention of consumers to driving safety, the impact resistance of automobile lining materials has become one of the important indicators for evaluating automobile safety performance. Traditional automobile lining materials, such as polystyrene foam (EPS), polyurethane foam (PU), etc., although having a certain energy absorption capacity, often have difficulty meeting higher safety standards in terms of energy absorption efficiency and structural stability when facing high-speed impacts.

[0003] To overcome the above deficiencies, the automobile industry adopts EFP materials and structural designs to achieve more efficient and stable energy absorption.

[0004] Although the EFP material automobile lining materials on the current market have undergone certain technological upgrades, there is still room for improvement in terms of energy absorption efficiency, structural stability, and impact resistance. Especially under high-intensity and high-speed impact conditions, problems such as insufficient energy absorption and structural failure often occur. Therefore, there is an urgent need for an impact-resistant EFP cushion block for automobile linings. Content of the Utility Model

[0005] In view of the above existing problems, the utility model discloses an impact-resistant EFP cushion block for automobile linings.

[0006] The technical solution of the utility model is: an impact-resistant EFP cushion block for automobile linings, including an impact-resistant middle layer plate, a first EFP outer layer plate and a second EFP outer layer plate connected to both sides of the impact-resistant middle layer plate;

[0007] A plurality of compression columns, a plurality of large elastic balls and small elastic balls evenly arranged with the large elastic balls are uniformly provided in the impact-resistant middle layer plate. The small elastic balls and the large elastic balls are filled with non-Newtonian fluid, and a plurality of connecting columns are respectively provided on the upper and lower sides of the impact-resistant middle layer plate;

[0008] Connection notches are provided at the joints between the first EFP outer layer plate and the impact-resistant middle layer plate and between the second EFP outer layer plate and the impact-resistant middle layer plate, and the connection notches are connected to the connecting columns.

[0009] Further, a plurality of first anti-collision balls are provided on the outer wall of the first EFP outer layer plate, and a plurality of first absorption holes are uniformly provided in the first EFP outer layer plate. A plurality of second anti-collision balls are provided on the outer wall of the second EFP outer layer plate, and a plurality of second absorption holes are uniformly provided in the second EFP outer layer plate.

[0010] Description: When the vehicle is hit, the first anti-collision ball and the second anti-collision ball can first contact and absorb the impact force, disperse the impact energy through their deformation, and effectively protect the vehicle lining and passengers. The first absorption hole and the second absorption hole form tiny cavities inside the material, which can further absorb and disperse the remaining impact energy and reduce the direct damage to the vehicle structure caused by the impact.

[0011] Furthermore, a plurality of limiting protrusions are evenly arranged on the outer wall of the connecting column from top to bottom, and limiting recesses corresponding to the limiting protrusions one by one are arranged in the connecting recess.

[0012] Description: When the connection column on the impact-resistant middle plate is connected to the connection notch on the first EFP outer plate and the second EFP outer plate, the stability of the internal connection of the EFP pad is enhanced by the mutual limitation between the limiting protrusion and the corresponding limiting notch.

[0013] Furthermore, the first EFP outer layer plate and the impact-resistant middle layer plate, as well as the second EFP outer layer plate and the impact-resistant middle layer plate are bonded together by adhesive, and the upper and lower end surfaces of the impact-resistant middle layer plate are both corrugated.

[0014] Description: The double connection method of mutual limitation between the limiting convex teeth and the corresponding limiting concave grooves and bonding by adhesive ensures a more stable connection between the first EFP outer plate and the second EFP outer plate and the impact-resistant middle plate. Even when the vehicle is subjected to a strong impact, the integrity of the structure can be maintained to prevent the components from loosening or separation. By limiting the upper and lower end surfaces of the impact-resistant middle plate to be corrugated, the contact area is increased and part of the impact energy can be absorbed. This complements the response characteristics of the non-Newtonian fluid and optimizes the dynamic response performance.

[0015] Furthermore, the impact-resistant middle layer plate, the compression-resistant column and the connecting column are an integrally formed structure, and the impact-resistant middle layer plate, the compression-resistant column and the connecting column are all made of EPP material.

[0016] Description: The one-piece compression columns and connecting columns can work together with the impact-resistant middle layer plate to form a continuous energy absorption path and disperse the impact force more effectively. The high strength and high rigidity of the EPP material ensure that the one-piece structure can maintain a stable shape when subjected to external forces and improve impact resistance.

[0017] Beneficial effects of the utility model:

[0018] An impact-resistant EFP cushion block for automotive interior lining of the present utility model is composed of an impact middle layer board, a first EFP outer layer board, and a second EFP outer layer board. And between the impact middle layer board and the first EFP outer layer board and the second EFP outer layer board respectively, through the mutual limitation between the limiting convex teeth and the corresponding limiting notches and the double connection method of bonding with an adhesive, it ensures a more stable connection between the first EFP outer layer board and the second EFP outer layer board and the impact-resistant middle layer board. Even when the vehicle is subjected to a strong impact, it can maintain the structural integrity, prevent the components from loosening or separating. And the compression columns in the impact middle layer board can increase the rigidity of the EFP cushion block structure, effectively disperse the impact force. The small elastic balls and large elastic balls filled with non-Newtonian fluid inside can instantaneously harden under impact to absorb energy, and then return to their original state, providing efficient and lasting energy absorption. At the same time, EFP materials usually have good durability and can maintain their impact-resistant characteristics for a long time. Through the coordinated cooperation between various components, the impact resistance of the EFP cushion block is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall cross-sectional view of the present utility model;

[0020] Figure 2 is the structural schematic diagram of the first EFP outer layer board of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the second EFP outer layer board of the present utility model.

[0022] Among them, 1 - impact-resistant middle layer board, 10 - compression column, 11 - large elastic ball, 12 - small elastic ball, 13 - connecting column, 130 - limiting convex tooth, 14 - connecting notch, 140 - limiting notch, 2 - first EFP outer layer board, 20 - first anti-collision ball, 21 - first absorption hole, 3 - second EFP outer layer board, 30 - second anti-collision ball, 31 - second absorption hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Embodiment 1

[0024] As Figure 1 shown, an impact-resistant EFP cushion block for automotive interior lining includes an impact-resistant middle layer board 1, a first EFP outer layer board 2 and a second EFP outer layer board 3 connected to both sides of the impact-resistant middle layer board 1; the compression columns in the impact middle layer board can increase the rigidity of the EFP cushion block structure, effectively disperse the impact force. The small elastic balls and large elastic balls filled with non-Newtonian fluid inside can instantaneously harden under impact to absorb energy, and then return to their original state, providing efficient and lasting energy absorption. At the same time, EFP materials usually have good durability and can maintain their impact-resistant characteristics for a long time;

[0025] The impact-resistant middle layer plate 1 is evenly provided with 24 compression columns 10, 26 large elastic balls 11 and small elastic balls 12 arranged evenly with the large elastic balls 11. The small elastic balls 12 and the large elastic balls 11 are filled with non-Newtonian fluid. On the upper and lower sides of the impact-resistant middle layer plate 1, 18 connecting columns 13 are respectively provided. Among them, the materials of the large elastic balls 11 and the small elastic balls 12 are polyurethane;

[0026] At the connection parts between the first EFP outer layer plate 2 and the impact-resistant middle layer plate 1 and between the second EFP outer layer plate 3 and the impact-resistant middle layer plate 1, connection notches 14 are provided. The connection notches 14 are connected with the connecting columns 13;

[0027] On the outer wall of the first EFP outer layer plate 2, 40 first anti-collision balls 20 are provided. Inside the first EFP outer layer plate 2, 54 first absorption small holes 21 are evenly provided. On the outer wall of the second EFP outer layer plate 3, 40 second anti-collision balls 30 are provided. Inside the second EFP outer layer plate 3, 54 second absorption small holes 31 are evenly provided. When the vehicle is impacted, the first anti-collision balls 20 and the second anti-collision balls 30 can first contact and absorb the impact force, disperse the impact energy through their deformation, and effectively protect the vehicle inner lining and the safety of passengers. The first absorption small holes 21 and the second absorption small holes 31 form tiny cavities inside the material, which can further absorb and disperse the remaining impact energy and reduce the direct damage of the impact to the vehicle structure;

[0028] As Figure 2 、 3 shown, on the outer wall of the connecting column 13, 24 limiting convex teeth 130 are evenly provided from top to bottom. Inside the connection notch 14, limiting notch 140 corresponding to the limiting convex teeth 130 is provided. When the connecting column 13 on the impact-resistant middle layer plate 1 is connected with the connection notch 14 on the first EFP outer layer plate 2 and the second EFP outer layer plate 3, through the mutual limitation between the limiting convex teeth 130 and the corresponding limiting notch 140, the stability of the internal connection of the EFP cushion block is enhanced;

[0029] The first EFP outer layer plate 2 and the impact-resistant middle layer plate 1 and the second EFP outer layer plate 3 and the impact-resistant middle layer plate 1 are adhered together through an adhesive. And the upper and lower end faces of the impact-resistant middle layer plate 1 are both corrugated. Through the dual connection methods of the mutual limitation between the limiting convex teeth 130 and the corresponding limiting notch 140 and being adhered together through an adhesive, it ensures a more stable connection between the first EFP outer layer plate 2 and the second EFP outer layer plate 3 and the impact-resistant middle layer plate 1. Even when the vehicle is subjected to a strong impact, it can maintain the integrity of the structure, prevent the components from loosening or separating. By limiting that the upper and lower end faces of the impact-resistant middle layer plate 1 are both corrugated, the contact area is increased, and at the same time, part of the impact energy can be absorbed, which complements the response characteristics of the non-Newtonian fluid and optimizes the dynamic response performance. Among them, the adhesive is hot melt adhesive;

[0030] The impact-resistant middle layer board 1, the compression-resistant column 10 and the connecting column 13 are of an integrally formed structure, and the impact-resistant middle layer board 1, the compression-resistant column 10 and the connecting column 13 are all made of EPP material. The integrally formed compression-resistant column 10 and connecting column 13 can work together with the impact-resistant middle layer board 1 to form a continuous energy absorption path, more effectively dispersing the impact force. The high strength and high rigidity of the EPP material ensure that the integrally formed structure can maintain a stable shape when bearing external forces, improving the impact resistance performance.

Claims

1. An impact-resistant EFP pad for automobile lining, characterized in that, It includes an impact-resistant middle layer board (1), a first EFP outer layer board (2) and a second EFP outer layer board (3) connected to both sides of the impact-resistant middle layer board (1); A plurality of compression columns (10), a plurality of large elastic balls (11) and small elastic balls (12) arranged uniformly with the large elastic balls (11) are provided uniformly in the impact-resistant middle layer board (1). The small elastic balls (12) and the large elastic balls (11) are filled with non-Newtonian fluid. A plurality of connecting columns (13) are provided on the upper and lower sides of the impact-resistant middle layer board (1) respectively; Connection notches (14) are provided at the joints between the first EFP outer layer board (2) and the impact-resistant middle layer board (1) and between the second EFP outer layer board (3) and the impact-resistant middle layer board (1). The connection notches (14) are connected to the connecting columns (13).

2. The impact-resistant EFP cushion block for automotive interior lining according to claim 1, wherein A plurality of first anti-collision balls (20) are provided on the outer wall of the first EFP outer layer board (2). A plurality of first absorption small holes (21) are provided uniformly in the first EFP outer layer board (2). A plurality of second anti-collision balls (30) are provided on the outer wall of the second EFP outer layer board (3). A plurality of second absorption small holes (31) are provided uniformly in the second EFP outer layer board (3).

3. The impact-resistant EFP spacer for automotive interior lining according to claim 1, wherein A plurality of limit convex teeth (130) are provided uniformly on the outer wall of the connecting column (13) from top to bottom. Limit notches (140) corresponding to the limit convex teeth (130) one by one are provided in the connection notch (14).

4. The impact-resistant EFP cushion block for automobile inner lining according to claim 1, characterized in that The first EFP outer layer board (2) and the impact-resistant middle layer board (1) and the second EFP outer layer board (3) and the impact-resistant middle layer board (1) are adhered together by an adhesive, and the upper and lower end faces of the impact-resistant middle layer board (1) are both corrugated.

5. The impact-resistant EFP cushion block for automobile inner lining according to claim 1, characterized in that, The impact-resistant middle layer board (1), the compression columns (10) and the connecting columns (13) are of an integrally formed structure, and the impact-resistant middle layer board (1), the compression columns (10) and the connecting columns (13) are all made of EPP material.

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