Energy-absorbing and buffering foam assembly for automobile front bumper

Abstract

The utility model relates to the field of automobile front bumper foam components, in particular to an energy-absorbing and buffering foam component for an automobile front bumper, which comprises a foam body, tear-resistant covered edges are arranged at two ends of the foam body, a plurality of auxiliary components are equidistantly inserted at the front end of the foam body, and each auxiliary component comprises a reinforcing rib component. The upper end and the lower end of the reinforcing rib assembly are each provided with a magnetic attraction limiting plate, and the back side of the reinforcing rib assembly is provided with a magnetic attraction mounting plate. According to the foam assembly, the anti-tearing wrapping edges are arranged at the two ends of the foam body, and the magnetic type detachable auxiliary assembly is arranged in a matched mode, so that the anti-tearing performance and the local strength of the foam assembly are improved, and the phenomenon of uneven deformation in the energy absorption process is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive front bumper foam components, and in particular to an energy-absorbing and buffering foam component for automotive front bumpers. Background Technology

[0002] The foam component inside the front bumper is a critical safety and functional part, playing a vital role in modern automotive design. It is typically hidden behind the plastic bumper skin (cover) and mounted directly in front of the bumper beam (usually metal or high-strength plastic).

[0003] The existing energy-absorbing cushioning foam components used in some car front bumpers have weak local crush resistance and are prone to uneven deformation during the energy absorption process. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an energy-absorbing and cushioning foam assembly for automobile front bumpers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An energy-absorbing and cushioning foam assembly for a car front bumper includes a foam body, both ends of which are provided with tear-resistant edges, and multiple auxiliary components are inserted at equal intervals at the front end of the foam body. The auxiliary components include a reinforcing rib assembly, the upper and lower ends of which are provided with magnetic limiting plates, and the back side of the reinforcing rib assembly is provided with a magnetic mounting plate.

[0007] In addition, a preferred structure is that the front end of the foam body is provided with a magnetic groove at the magnetic mounting plate, and the inner wall of the magnetic groove is provided with a magnetic material that attracts the magnetic plate.

[0008] In addition, a preferred structure is that the front end of the foam body is provided with a magnetic material that is attracted to the magnetic limiting plate outside the magnetic groove.

[0009] Furthermore, in a preferred configuration, the reinforcing rib assembly includes longitudinal reinforcing ribs and transverse reinforcing ribs, and the longitudinal and transverse reinforcing ribs are arranged alternately.

[0010] In addition, a preferred structure is that multiple positioning rods are installed at equal intervals in the middle of the magnetic groove, and an auxiliary groove is opened on one side of the magnetic mounting plate at the positioning rods.

[0011] Furthermore, in a preferred configuration, the tear-resistant edge banding is made of aramid fiber woven tape.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, by providing tear-resistant edging at both ends of the foam body and using magnetically detachable auxiliary components, the tear resistance and local strength of the foam component are improved, thus avoiding uneven deformation during the energy absorption process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an energy-absorbing buffer foam assembly for a car front bumper proposed in this utility model;

[0015] Figure 2 This invention provides a structural diagram illustrating the disassembly of an energy-absorbing and cushioning foam assembly for a car front bumper. Figure 1 ;

[0016] Figure 3 This invention provides a structural diagram illustrating the disassembly of an energy-absorbing and cushioning foam assembly for a car front bumper. Figure 2 ;

[0017] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Foam body; 11. Magnetic groove; 21. Tear-resistant edge banding; 3. Auxiliary components; 31. Reinforcing rib assembly; 32. Magnetic limiting plate; 33. Magnetic mounting plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-4 An energy-absorbing and cushioning foam assembly for a car front bumper includes a foam body 1, both ends of which are provided with tear-resistant edges 21, and multiple auxiliary components 3 are inserted at equal intervals at the front end of the foam body 1. The auxiliary components 3 include reinforcing rib assemblies 31, the upper and lower ends of which are provided with magnetic suction limiting plates 32, and the back side of the reinforcing rib assembly 31 is provided with a magnetic suction mounting plate 33.

[0021] An auxiliary component is inserted into and magnetically connected to the front end of the foam body 1 to improve the rigidity and bending resistance of the front end of the foam body 1.

[0022] Meanwhile, a magnetic groove 11 is provided at the front end of the foam body 1 at the magnetic mounting plate 33, and the inner wall of the magnetic groove 11 is provided with a magnetic material that attracts the magnetic plate. The magnetic groove 11 provides a dedicated installation space for the magnetic mounting plate 33, ensuring that the mounting plate is embedded in the groove with a flat surface. At the same time, the magnetic material on the inner wall of the groove interacts with the magnetic material of the magnetic mounting plate 33 to generate a strong attraction force, firmly fixing the auxiliary component.

[0023] Meanwhile, the front end of the foam body 1 is provided with a magnetic material outside the magnetic groove, which attracts the magnetic limiting plate 32. Magnetic material is also provided at the outer area of ​​the front end of the foam body outside the magnetic groove, corresponding to the upper and lower ends of the reinforcing rib assembly, to attract and fix the magnetic limiting plates 32 at the upper and lower ends of the reinforcing rib assembly, further ensuring that the auxiliary component is firmly attached to the foam body and preventing it from shaking or detaching.

[0024] Furthermore, the reinforcing rib assembly 31 includes longitudinal reinforcing ribs and transverse reinforcing ribs, which are staggered. The longitudinal ribs mainly resist compression and bending in the front-to-back direction, while the transverse ribs mainly resist bending and twisting in the left-to-right direction. The crisscrossing ribs form a grid-like structure, enabling the reinforcing rib assembly to resist impact forces from different directions more evenly and effectively, preventing the foam from prematurely collapsing or deforming in a specific direction.

[0025] Furthermore, multiple positioning rods are evenly spaced within the center of the magnetic groove 11, and an auxiliary groove is provided on one side of the magnetic mounting plate 33 at the positioning rod location. The positioning rods are inserted into the auxiliary groove on the magnetic mounting plate 33, providing physical guidance and positioning before or simultaneously with magnetic attraction. This ensures that the auxiliary component can only be installed in the correct orientation, preventing reverse or misaligned installation.

[0026] Furthermore, the tear-resistant edge band 21 is made of aramid fiber woven tape. The tear-resistant edge band enhances the strength and tear resistance of the edge of the foam body 1, effectively protecting the edge of the foam body from tearing or breaking during impact energy absorption or daily use, installation and disassembly.

[0027] In this invention, by providing tear-resistant edge banding 21 at both ends of the foam body 1, and in conjunction with the setting of magnetically detachable auxiliary components, the tear resistance and local strength of the foam component are improved, and uneven deformation is avoided during the energy absorption process.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An energy-absorbing and cushioning foam assembly for a car front bumper, comprising a foam body (1), characterized in that, Both ends of the foam body (1) are provided with tear-resistant edge banding (21), and multiple auxiliary components (3) are inserted at equal intervals at the front end of the foam body (1). The auxiliary components (3) include reinforcing rib components (31). The upper and lower ends of the reinforcing rib components (31) are provided with magnetic suction limiting plates (32), and the back side of the reinforcing rib components (31) is provided with a magnetic suction mounting plate (33).

2. The energy-absorbing and cushioning foam assembly for a car front bumper according to claim 1, characterized in that, The front end of the foam body (1) is provided with a magnetic groove (11) at the magnetic mounting plate (33), and the inner wall of the magnetic groove (11) is provided with a magnetic material that is attracted to the magnetic plate.

3. The energy-absorbing and cushioning foam assembly for a car front bumper according to claim 1, characterized in that, The front end of the foam body (1) is located outside the magnetic groove and is provided with a magnetic material that is attracted to the magnetic limiting plate (32).

4. A crushable foam bumper assembly for a front bumper beam of an automobile as defined in claim 1, wherein, The reinforcing rib assembly (31) includes longitudinal reinforcing ribs and transverse reinforcing ribs, and the longitudinal reinforcing ribs and transverse reinforcing ribs are arranged alternately.

5. The energy-absorbing and cushioning foam assembly for a car front bumper according to claim 2, characterized in that, Multiple positioning rods are installed at equal intervals in the middle of the magnetic groove (11), and an auxiliary groove is provided on one side of the magnetic mounting plate (33) at the positioning rod.

6. An energy absorbing cushion foam assembly for use in an automotive front bumper as defined in claim 1, wherein, The tear-resistant edge banding (21) is made of aramid fiber woven tape.

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