High-strength vehicle bumper

Abstract

The utility model relates to a high-strength vehicle bumper which comprises a supporting frame and energy absorption boxes located on the two sides of the supporting frame and further comprises a reinforcing piece located on the front sides of the energy absorption boxes, the length direction of the reinforcing piece extends in the left-right direction, and a mass reduction cavity is formed in the reinforcing piece. And a plurality of reinforcing rib modules are arranged at intervals in the length direction of the reinforcer in the mass reduction cavity. By the adoption of the scheme, the strength of the bumper is improved, and meanwhile the weight reduction cavity can reduce the weight of the reinforcer, so that the overall weight of the bumper is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bumper, especially a high-strength bumper for vehicles. BACKGROUND

[0002] With the development of the automobile industry and the increasing demand for vehicle safety performance, the design and material selection of the bumper for vehicles, as an important part of the passive safety system of the automobile, are particularly important. The traditional bumper for vehicles is mainly made of steel, which has certain strength and rigidity, but has the disadvantages of large weight, easy corrosion and limited ability to absorb impact energy when a collision occurs. This not only increases the overall mass of the vehicle and affects fuel efficiency, but also limits the role of the bumper in protecting passengers.

[0003] Therefore, how to improve the strength of the bumper for vehicles while reducing the overall weight has become a problem to be solved by those skilled in the art. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a bumper whose strength is improved and whose overall weight is reduced by the weight reduction cavity.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a support frame and energy-absorbing boxes located on both sides of the support frame are provided, and a reinforcing member located on the front side of the energy-absorbing box is further provided, the length direction of the reinforcing member extends left and right, and the reinforcing member is internally provided with a weight reduction cavity, and a plurality of reinforcing rib modules are arranged along the length direction in the weight reduction cavity.

[0006] The utility model is further provided as follows: each front reinforcing rib comprises an upper connecting section and a lower connecting section, each upper connecting section is arranged obliquely from top to bottom and from front to back, each lower connecting section is arranged obliquely from top to bottom and from back to front, and each rear reinforcing rib is the same size and symmetrically arranged with the front reinforcing rib.

[0007] The utility model is further provided as follows: each front reinforcing rib comprises an upper connecting section and a lower connecting section, each upper connecting section is arranged obliquely from top to bottom and from front to back, each lower connecting section is arranged obliquely from top to bottom and from back to front, and each rear reinforcing rib is the same size and symmetrically arranged with the front reinforcing rib.

[0008] The utility model is further provided as follows: the support frame comprises reinforcing plates on the left and right sides and a bottom plate at the bottom, each reinforcing plate is arranged in an L shape and fixed at one end to the energy-absorbing box and at the other end to the bottom plate.

[0009] The utility model further sets up: one end of each described reinforcing plate is welded with energy absorption box connection, the other end is welded with bottom plate connection.

[0010] The utility model further sets up: each energy absorption box includes box body and the lid body on the box body top, the lid body is welded with box body connection, the front side of each described box body all is welded with support seat, each support seat is located below the reinforcing part.

[0011] The utility model further sets up: the support seat is provided with a plurality of partition plates towards the front, the front side of each partition plate is in abutment with the rear side of the reinforcing part, and the lid body is provided with a groove for inserting the partition plate.

[0012] The utility model further sets up: be provided with release groove on the box body.

[0013] By adopting the above technical scheme, since the reinforcing part is located on the front side of the energy absorption box, the strength of the bumper is improved, and in low-speed collision, the reinforcing part will deform first to protect the energy absorption box from direct damage, reduce the deformation of the energy absorption box, thereby reducing the maintenance cost, and the existence of the weight reduction cavity can increase the strength of the bumper as a whole, which can improve the strength of the bumper while reducing the weight of the reinforcing part as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0015] Figure 1 It is the assembly drawing of the specific embodiment of the utility model;

[0016] Figure 2 It is the partial perspective view of the reinforcing part;

[0017] Figure 3 It is Figure 1 The enlarged view of A;

[0018] Figure 4 It is Figure 1 The enlarged view of B;

[0019] Figure 5 It is Figure 1 The enlarged view of C;

[0020] Figure 6 It is Figure 2 The enlarged view of D.

[0021] In the diagram: 1-Support frame, 11-Reinforcing plate, 12-Base plate;

[0022] 2-Energy-absorbing box, 21-Box body, 211-Support base, 2111-Divider plate, 212-Release groove, 22-Cover body, 221-Recessed groove;

[0023] 3-Reinforcing component, 31-Reduced mass cavity, 32-Reinforcing rib module, 321-Front reinforcing rib, 3211-Upper connecting section, 3212-Lower connecting section, 322-Rear reinforcing rib, 33-Front mounting plate, 34-Rear mounting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-6 As shown, this utility model discloses a high-strength vehicle bumper, including a support frame 1 and energy-absorbing boxes 2 located on both sides of the support frame 1. The purpose of the energy-absorbing boxes 2 is to absorb energy in the event of a low-speed collision, thereby reducing damage to the vehicle body structure and improving the safety of passengers inside the vehicle. The energy-absorbing boxes 2 are usually installed inside the bumper, located between the bumper and the vehicle frame. When the vehicle is involved in a collision, the energy-absorbing boxes 2 will be subjected to the impact force first and begin to crush or deform. This design allows it to gradually disintegrate during a collision, converting kinetic energy into heat and deformation energy in this way. This reduces the energy transferred to other parts of the vehicle body, protecting more important vehicle structures (such as the engine compartment and passenger compartment) from damage, and also reducing the potential risk of injury to passengers. This is prior art and will not be described in detail here. It also includes a reinforcing member 3 located in front of the energy-absorbing box 2. The reinforcing member 3 extends horizontally along its length and has a mass-reducing cavity 31 inside. The reinforcing member 3 has several reinforcing rib modules 32 spaced along its length in the mass-reducing cavity 31. Since the reinforcing member 3 is located in front of the energy-absorbing box 2, it improves the overall strength of the bumper. In low-speed collisions, the reinforcing member 3 will deform first to protect the energy-absorbing box 2 from direct damage, reducing the deformation of the energy-absorbing box 2 and thus reducing maintenance costs. At the same time, the presence of the mass-reducing cavity 31 enables the reinforcing member 3 to increase the overall strength of the bumper. At the same time, the weight of the reinforcing member 3 is reduced while strengthening it, which helps to improve the strength of the bumper and achieve a lightweight design.

[0026] The reinforcing rib module 32 comprises a plurality of front reinforcing ribs 321 and rear reinforcing ribs 322, each rear reinforcing rib 322 is located between adjacent front reinforcing ribs 321, the reinforcing member 3 comprises a front mounting plate 33 and a rear mounting plate 34 located at the front side of the mass reduction cavity 31, each front reinforcing rib 321 abuts against the adjacent rear reinforcing rib 322, the front reinforcing rib 321 is located on the front mounting plate 33, and the rear reinforcing rib 322 is located on the rear mounting plate 34. 1. The arrangement of each front reinforcing rib 321 and rear reinforcing rib 322 can not only reduce the overall mass of the reinforcing member 3 while improving the overall strength of the reinforcing member 3, but also make the front reinforcing rib 321 and the rear reinforcing rib 322 deform inwardly when the reinforcing member 3 deforms towards the mass reduction cavity 31 during a low-speed collision. At this time, since each front reinforcing rib 321 abuts against the corresponding rear reinforcing rib 322, the front reinforcing rib 321 and the rear reinforcing rib 322 can be mutually attached to bear some impact force during the stress deformation process. Therefore, this design not only enhances the structural stability of the reinforcing member 3, but also more effectively disperses the stress generated during the collision, further improving the energy absorption capacity and durability of the bumper.

[0027] Each front reinforcing rib 321 comprises an upper connecting section 3211 and a lower connecting section 3212, each upper connecting section 3211 is arranged obliquely from top to bottom and from front to back, and each lower connecting section 3212 is arranged obliquely from top to bottom and from back to front, and each rear reinforcing rib 322 has the same shape and size as the front reinforcing rib 321 and is arranged symmetrically with the front reinforcing rib 321. This oblique and cross design can better cope with forces in different directions, increase the adaptability to complex collision conditions, and improve the safety performance of the bumper.

[0028] The support frame 1 comprises left and right reinforcing plates 11 and a bottom plate 12, each reinforcing plate 11 is arranged in an L shape and fixed at one end to the energy absorption box 2 and at the other end to the bottom plate 12, providing a more stable basic structure support, which helps to improve the stability and impact resistance of the entire bumper system.

[0029] Each reinforcing plate 11 is welded at one end to the energy absorption box 2 and at the other end to the bottom plate 12, and the welding connection mode can provide higher connection strength, ensuring the close combination between the components and increasing the reliability of the overall structure.

[0030] Each of the energy absorption boxes 2 comprises a box body 21 and a cover body 22 above the box body 21, the cover body 22 is welded with the box body 21, the front side of each of the box bodies 21 is welded with a support seat 211, each of the support seats 211 is below the reinforcing member 3, since the support seat 211 is below the reinforcing member 3, the support seat 211 can provide support for the installation and fixation of the reinforcing member.

[0031] The support seat 211 is provided with a plurality of partition plates 2111 which protrude forward, the front side of each of the partition plates 2111 is against the rear side of the reinforcing member 3, and the cover body 22 is provided with a groove 221 in which the partition plates 2111 are inserted, since each of the partition plates 2111 is on the support seat 211, when the cover body 22 is installed on the box body 21 to fix the cover body 22 and the box body 21, the partition plates 2111 will enter the groove 221 to provide convenience for the relative position of the cover body 22 and the box body 21 and for the welding process.

[0032] Preferably, the box body 21 is provided with a release groove 212, the release groove 212 is arranged to make the energy absorption box 2 absorb impact force and deform during the collision, at this time, the stress generated by the deformation can be released through the release groove 212.

[0033] The above description of disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-strength bumper for vehicles, comprising a support frame and energy-absorbing boxes located on both sides of the support frame, characterized in that: The reinforcing member is located in the front side of the energy absorption box, the length direction of the reinforcing member extends along the left and right, and the reinforcing member is internally provided with a mass reduction cavity, a plurality of reinforcing rib modules are arranged along the length direction in the mass reduction cavity, the reinforcing rib modules include a plurality of front reinforcing ribs and rear reinforcing ribs, each rear reinforcing rib is located between adjacent front reinforcing ribs, the reinforcing member includes a front mounting plate and a rear mounting plate located in the front side of the mass reduction cavity, each front reinforcing rib abuts against an adjacent rear reinforcing rib, the front reinforcing rib is located on the front mounting plate, the rear reinforcing rib is located on the rear mounting plate, each front reinforcing rib includes an upper connecting section and a lower connecting section, each upper connecting section is arranged in an inclined manner from top to bottom and from front to back, each lower connecting section is arranged in an inclined manner from top to bottom and from back to front, each rear reinforcing rib is the same in shape and size as the front reinforcing rib and is arranged in a symmetrical manner with the front reinforcing rib.

2. A high-strength bumper beam for a vehicle as defined in claim 1, wherein: The support frame includes left and right reinforcing plates and a bottom plate, each reinforcing plate is arranged in an L-shaped manner and is fixed at one end to the energy absorption box and at the other end to the bottom plate.

3. A high-strength bumper beam for a vehicle as defined in claim 2, wherein: One end of each reinforcing plate is welded to the energy absorption box, and the other end is welded to the bottom plate.

4. A high-strength bumper beam for a vehicle as defined in claim 1 or 3, characterized in that: Each energy absorption box includes a box body and a cover located above the box body, the cover is welded to the box body, a support seat is welded to the front side of each box body, and each support seat is located below the reinforcing member.

5. A high-strength bumper beam for a vehicle as defined in claim 4, wherein: The support seat is provided with a plurality of partition plates protruding forward, the front side of each partition plate abuts against the rear side of the reinforcing member, and the cover is provided with a groove in which the partition plate is inserted.

6. A high-strength bumper beam for a vehicle as defined in claim 5, wherein: The box body is provided with a release groove.

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