A front anti-collision beam assembly and an energy absorption box assembly

Abstract

The utility model discloses a front anti -collision beam assembly and energy absorption box subassembly, a front anti -collision beam assembly and energy absorption box subassembly including buffer portion, support part and fixed base, fixed base is used for with fixed beam connection of fixed connection in the frame, buffer portion is used for accommodating fixed base and support part and with fixed base welding forming, support part sets up in the buffer box, and energy absorption box subassembly can realize multistage buffering and energy dispersion when being hit. The utility model provides a front anti -collision beam assembly and energy absorption box subassembly have multistage energy absorption, and the effect that collision force distribution is even and is easy to maintain.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle safety technology, and more specifically, relates to a front anti-collision beam assembly and an energy-absorbing box assembly. Background Technology

[0002] With the increasing popularity of cars, people have higher and higher requirements for car safety. As a key component affecting vehicle collision safety, the front bumper beam assembly plays a decisive role in the vehicle's collision safety performance through its placement and structural design. In low-speed collisions involving cars, the front bumper beam assembly can completely absorb impact energy, protecting important components from damage and reducing property loss. In high-speed collisions, the front bumper beam assembly can absorb and disperse energy, minimizing damage to the passenger compartment.

[0003] Statistics show that 70% of oncoming vehicle collisions in traffic accidents are side-impact collisions. These side-impact collisions are particularly prone to damaging the A-pillar, which forms the frame of the passenger compartment, leading to intrusion into the passenger compartment. The inventor believes that traditional front bumper beam assemblies often use a single-stage cylindrical structure for their energy-absorbing boxes. In low-speed collisions, this structure is prone to insufficient deformation, resulting in high repair costs. In high-speed collisions, it may also fail due to premature crushing, failing to effectively protect the passenger compartment. Furthermore, existing energy-absorbing boxes are often rigidly welded to the bumper beams, leading to uneven force distribution and low energy absorption efficiency. Utility Model Content

[0004] One objective of this invention is to provide a multi-stage energy absorption system with uniform impact force distribution and easy maintenance.

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a front anti-collision beam assembly and an energy-absorbing box component.

[0006] To achieve the aforementioned utility model objective, the technical solution adopted by this utility model includes a buffer part, a support part, and a fixed seat. The fixed seat is used to connect with a fixed beam fixed to the vehicle frame. The buffer part is used to accommodate the fixed seat and the support part and is welded to the fixed seat. The support part is set inside the buffer box. When the energy-absorbing box assembly is subjected to a collision, it can achieve multi-level buffering and energy dispersion.

[0007] Optionally, the mounting base has multiple mounting holes, the axis of which is perpendicular to the mounting beam. The mounting holes are threaded with mounting bolts, which are used to connect to the mounting beam to define the relative position of the mounting base and the mounting beam.

[0008] Optionally, the support includes a support plate one and a support plate two. One end of the support plate one is fixedly connected to the fixed seat, and one end of the support plate two is fixedly connected to the fixed seat. The ends of the support plate one and the support plate two that are close to each other are fixedly connected to each other. The support plate one and the support plate two are inclined towards each other. The angle between the support plate one and the fixed seat is 45°, and the angle between the support plate two and the fixed seat is 45°.

[0009] Optionally, a positioning plate perpendicular to the fixed beam is provided between support plate one and support plate two. Two guide plates are provided on the fixed beam at the position corresponding to the positioning plate. The distance between the two guide plates is greater than the thickness of the positioning plate, and the positioning plate can move vertically between the two guide plates.

[0010] Optionally, the buffer includes a buffer box, whose sidewalls can undergo controlled folding deformation to absorb part of the impact energy when subjected to a collision.

[0011] Optionally, the fixed beam is fixed to the vehicle frame, and the energy-absorbing box assembly is located between the anti-collision beam and the fixed beam. Both the anti-collision beam and the fixed beam are formed by rolling a single steel plate.

[0012] Optionally, the wound-formed anti-collision beam and fixing beam form a hollow structure, which reduces the overall weight while ensuring structural strength. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is an overall schematic diagram of a front anti-collision beam assembly and energy-absorbing box assembly according to the present invention;

[0015] Figure 2 This is a cross-sectional view of a front anti-collision beam assembly and energy-absorbing box assembly according to the present invention;

[0016] Figure label:

[0017] 11. Anti-collision beam; 12. Fixed beam; 121. Guide plate; 13. Energy absorption component; 131. Buffer part; 132. Support part; 1321. Support plate one; 1322. Support plate two; 1323. Positioning plate; 133. Fixing seat; 1331. Fixing hole; 1332. Fixing bolt.

[0018] In the accompanying drawings, the same parts are labeled with the same reference numerals; the drawings are not drawn to scale. Detailed Implementation

[0019] In view of the shortcomings of the prior art, the inventors of this case, through long-term research and extensive practice, have proposed the technical solution of this utility model. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples.

[0020] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0022] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0023] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] This utility model embodiment is intended to introduce and explain the structural composition of a front bumper beam assembly and energy-absorbing box assembly, as well as the cooperation relationship between the various components. Unless otherwise specified, the dimensions, materials, and manufacturing processes of the various components in the front bumper beam assembly and energy-absorbing box assembly in this utility model embodiment can be selected according to specific circumstances, and no special limitations or explanations are made here.

[0025] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0026] Example 1

[0027] Please see Figure 1 and Figure 2 A front bumper beam assembly and energy-absorbing box assembly are disclosed, including a bumper beam 11, a fixed beam 12, and an energy-absorbing component 13. The fixed beam 12 is fixed to the vehicle frame, and the energy-absorbing component 13 is disposed between the bumper beam 11 and the fixed beam 12. Both the bumper beam 11 and the fixed beam 12 are formed by rolling a single steel plate. This structure, in which both the bumper beam 11 and the fixed beam 12 are formed by rolling a single steel plate, can increase the structural strength of the bumper beam 11 assembly. Furthermore, the rolling process, which creates a hollow internal structure, can reduce the overall structural weight of the bumper beam 11 assembly.

[0028] Please see Figure 1 and Figure 2 One end of the energy-absorbing component 13 is fixedly connected to the anti-collision beam 11. The energy-absorbing component 13 includes a buffer part 131, a support part 132 and a fixing seat 133.

[0029] Please see Figure 1 and Figure 2 The fixing seat 133 has multiple fixing holes 1331. The axis of the fixing holes 1331 is perpendicular to the fixing beam 12. The fixing holes 1331 are threaded with fixing bolts 1332. The fixing bolts 1332 are threaded to the fixing beam 12. When the fixing bolts 1332 pass through the fixing holes 1331 of the fixing seat 133, the fixing bolts 1332 are tightened to prevent the relative position of the fixing seat 133 and the fixing beam 12 from changing.

[0030] Please see Figure 1 and Figure 2 The support portion 132 includes a first support plate 1321 and a second support plate 1322. One end of the first support plate 1321 is fixedly connected to the fixed base 133, and one end of the second support plate 1322 is fixedly connected to the fixed base 133. The ends of the first support plate 1321 and the second support plate 1322 that are close to each other are fixedly connected to each other. The first support plate 1321 is inclined towards the second support plate 1322, and the second support plate 1322 is inclined towards the first support plate 1321. The first support plate 1321 and the fixed base 1322 are fixedly connected to each other. The angle of the seat 133 is 45°, and the angle between the second support plate 1322 and the fixed seat 133 is 45°. A positioning plate 1323 is provided between the first support plate 1321 and the second support plate 1322. The positioning plate 1323 is perpendicular to the fixed beam 12. Two guide plates 121 are provided on the fixed beam 12 at the position corresponding to the positioning plate 1323. The distance between the two guide plates 121 is greater than the thickness of the positioning plate 1323. The positioning plate 1323 can move vertically between the two guide plates 121.

[0031] Please see Figure 1 and Figure 2 The buffer section 131 includes a buffer box, which can accommodate the fixed seat 133 and the support section 132. The buffer box is welded to the fixed seat 133, and the support section 132 is integrally disposed inside the buffer box.

[0032] This patent describes the effect under normal conditions: Under normal conditions without external impact, the front bumper beam 11 assembly forms a stable frame structure with the fixed beam 12 through the wound-formed bumper beam 11. The hollow design reduces the overall weight while ensuring structural strength. The energy-absorbing component 13 is vertically connected to the fixed beam 12 through the fixed seat 133. The support plate 1321 and the support plate 1322 are symmetrically distributed at a 45° angle, forming a stable triangular support structure. Combined with the vertical movement restriction of the positioning plate 1323 between the guide plates 121, the relative position of the energy-absorbing component 13 and the fixed beam 12 is ensured to be fixed. The buffer box completely encloses the support part 132 and the fixed seat 133, forming a whole through welding, further improving the impact resistance stability of the component.

[0033] The deformation process after being subjected to force: When a collision occurs at the front of the vehicle, the anti-collision beam 11 first bears the impact force and compresses inward, transferring the force to the energy-absorbing component 13; the buffer box, as the first-level energy-absorbing structure, undergoes controlled wrinkling deformation of its sidewalls under pressure, absorbing part of the collision energy. As the force continues to be transmitted, the support plate 1321 and support plate 1322, due to their tilted angle design, converge towards the center under axial pressure and undergo bending deformation, further consuming energy. At this time, the positioning plate 1323 slides down along the gap of the guide plate 121, limiting the lateral displacement of the support part 132 and ensuring that the deformation direction is controllable. Finally, the remaining energy that is not completely absorbed is transferred to the fixed beam 12 through the fixed seat 133. Since the fixed beam 12 adopts a wound hollow structure, its cross-sectional deformation can disperse local stress, avoiding the frame from directly bearing concentrated loads, and achieving a synergistic effect of multi-level buffering and energy dispersion.

[0034] Technical advantages of this patent:

[0035] 1. The anti-collision beam and the fixed beam adopt the steel plate rolling forming process. The hollow structure achieves lightweight design while ensuring structural strength.

[0036] 2. The energy-absorbing components are connected to the fixed beam by vertical bolts through the fixed base to ensure the stability of the connection position during a collision;

[0037] 3. Support plate one and support plate two are arranged symmetrically at a 45° angle to form a stable triangular support structure, which effectively disperses collision energy;

[0038] 4. The clearance fit design between the positioning plate and the guide plate ensures that the energy absorption component deforms in an orderly manner along a predetermined path when subjected to impact.

[0039] 5. The buffer box completely encloses the fixing base and support, forming a closed energy absorption space and improving energy absorption efficiency;

[0040] 6. The overall components are integrated through multiple processes such as winding, bolting, and welding to achieve synergistic optimization of structural strength and energy absorption characteristics.

[0041] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A front bumper beam assembly and energy-absorbing box assembly, characterized in that: It includes a buffer section (131), a support section (132), and a fixed seat (133). The fixed seat (133) is used to connect to the fixed beam (12) fixed to the frame. The buffer section (131) is used to accommodate the fixed seat (133) and the support section (132) and is welded to the fixed seat (133). The support section (132) is set inside the buffer box. The energy absorption box assembly can achieve multi-level buffering and energy dispersion when it is subjected to a collision.

2. The front bumper beam assembly and energy-absorbing box assembly according to claim 1, characterized in that: The fixing seat (133) has multiple fixing holes (1331). The axis of the fixing holes (1331) is perpendicular to the fixing beam (12). The fixing holes (1331) are threaded with fixing bolts (1332). The fixing bolts (1332) are used to thread with the fixing beam (12) to limit the relative position of the fixing seat (133) and the fixing beam (12).

3. The front bumper beam assembly and energy-absorbing box assembly according to claim 1, characterized in that: The support part (132) includes a support plate one (1321) and a support plate two (1322). One end of the support plate one (1321) is fixedly connected to the fixed seat (133), and one end of the support plate two (1322) is fixedly connected to the fixed seat (133). The ends of the support plate one (1321) and the support plate two (1322) that are close to each other are fixedly connected to each other. The support plate one (1321) and the support plate two (1322) are both inclined towards each other. The angle between the support plate one (1321) and the fixed seat (133) is 45°, and the angle between the support plate two (1322) and the fixed seat (133) is 45°.

4. The front bumper beam assembly and energy-absorbing box assembly according to claim 1, characterized in that: A positioning plate (1323) perpendicular to the fixed beam (12) is provided between the support plate one (1321) and the support plate two (1322). The fixed beam (12) is provided with two guide plates (121) corresponding to the position of the positioning plate (1323). The distance between the two guide plates (121) is greater than the thickness of the positioning plate (1323). The positioning plate (1323) can move vertically between the two guide plates (121).

5. A front bumper beam assembly and energy-absorbing box assembly according to claim 1, characterized in that: The buffer section (131) includes a buffer box, whose sidewalls can undergo controlled folding deformation when subjected to a collision in order to absorb part of the collision energy.

6. The front bumper beam assembly and energy-absorbing box assembly according to claim 1, characterized in that: The fixed beam (12) is fixed to the vehicle frame, and the energy-absorbing box assembly is set between the anti-collision beam (11) and the fixed beam (12). Both the anti-collision beam (11) and the fixed beam (12) are formed by rolling a steel plate.

7. The front bumper beam assembly and energy-absorbing box assembly according to claim 1, characterized in that: The wound anti-collision beam (11) and the fixed beam (12) form a hollow structure, which reduces the overall weight while ensuring structural strength.

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