A crash beam with an energy-absorbing structure
By introducing energy-absorbing panels and honeycomb energy-absorbing blocks into the anti-collision beam, the problem of ineffective kinetic energy absorption in existing technologies is solved, achieving better collision energy management and occupant protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU POLYTECHNIC INST
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-31
AI Technical Summary
Existing crash beams and energy-absorbing boxes cannot effectively absorb the kinetic energy during a vehicle collision, causing the impact energy to be transferred to the middle of the vehicle body, which may lead to structural deformation and threats to the safety of occupants.
Design an energy-absorbing anti-collision beam, including a main anti-collision beam, a secondary anti-collision beam, an energy-absorbing plate, and a honeycomb energy-absorbing block. The impact energy is absorbed through the crumple zones and the deformation of the energy-absorbing plate, and the energy absorption effect is improved by utilizing carbon fiber materials.
It effectively absorbs collision energy, protects the passenger compartment, improves vehicle safety, and reduces structural deformation and occupant injury.
Smart Images
Figure CN224576589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive technology, and in particular to a crash beam with an energy-absorbing structure. Background Technology
[0002] Vehicles are a common means of transportation in people's lives. Generally, vehicles are quite valuable, and for the safety of passengers, energy-absorbing devices are usually installed on the vehicle body to reduce the damage to the vehicle body in a collision. In existing technologies, the vehicle body collision acceleration is relatively large, and the collision load is directly transferred to the front bulkhead, resulting in a large intrusion. However, the existing anti-collision beams and energy-absorbing boxes cannot absorb kinetic energy well, thus causing them to fail. A large amount of energy will be transferred to the middle of the vehicle body. Although this area is designed as a robust passenger compartment, excessive impact may still cause structural deformation or even endanger the safety of occupants, which is not conducive to occupant injury protection. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a crash beam with an energy-absorbing structure.
[0004] The objective of this utility model is achieved as follows: According to a first aspect of this utility model, a crash beam with an energy-absorbing structure is provided, including a main crash beam for automobiles, a secondary crash beam at the lower end of the main crash beam, a first energy-absorbing plate fixedly installed between the adjacent ends of the main crash beam and the secondary crash beam, a second energy-absorbing plate fixedly installed between the adjacent ends of two first energy-absorbing plates, a second crumple zone installed inside the second energy-absorbing plate, a third energy-absorbing plate fixedly connected between the adjacent ends of the main crash beam and the secondary crash beam, a plurality of third energy-absorbing plates fixedly connected to a plurality of first energy-absorbing plates respectively, a first crumple zone fixedly installed at the connection between the third energy-absorbing plate and the first energy-absorbing plate, and a honeycomb energy-absorbing block fixedly installed inside the cavity formed by the third energy-absorbing plate and the first energy-absorbing plate.
[0005] Optionally, two energy-absorbing boxes are fixedly installed at the rear end of the secondary anti-collision beam.
[0006] Optionally, the plurality of first energy-absorbing plates, the plurality of second energy-absorbing plates, and the third energy-absorbing plate are all made of carbon fiber.
[0007] Optionally, a fixing plate is fixedly connected to the lower end of each of the two energy-absorbing boxes, and multiple slots are provided on each of the two fixing plates.
[0008] Optionally, energy-absorbing cotton is fixedly connected to the upper end of the main anti-collision beam.
[0009] Optionally, both the main anti-collision beam and the secondary anti-collision beam are arc-shaped.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: A first energy-absorbing plate is fixedly installed between the main and secondary anti-collision beams, and the first energy-absorbing plates are connected to each other through second energy-absorbing plates. A third energy-absorbing plate, connected to the first energy-absorbing plate, is also installed on both the main and secondary anti-collision beams. Honeycomb energy-absorbing blocks are fixedly installed inside the cavities formed by the third and first energy-absorbing plates. When the main anti-collision beam collides, it collapses through the first crumple zone installed on the first energy-absorbing plate, and similarly through the second crumple zone installed on the second energy-absorbing plate. This causes the first, second, and third energy-absorbing plates to deform and break simultaneously, thereby absorbing the impact force on the main anti-collision beam and providing better protection for the vehicle's passenger compartment. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of a collision-resistant beam with an energy-absorbing structure in one embodiment.
[0013] Figure 2 This is a bottom-view three-dimensional structural diagram of a collision protection beam with an energy-absorbing structure in another embodiment.
[0014] Figure 3 This is a side-view perspective schematic diagram of a collision protection beam with an energy-absorbing structure in another embodiment.
[0015] Figure 4 This is a top view schematic diagram of a collision protection beam with an energy-absorbing structure in the fourth embodiment.
[0016] The diagram shows the following: 1. Main anti-collision beam; 2. Secondary anti-collision beam; 3. Energy-absorbing box; 4. Fixing plate; 5. Slot; 6. First energy-absorbing plate; 7. First collapse hole; 8. Second energy-absorbing plate; 9. Second collapse hole; 10. Honeycomb energy-absorbing block; 11. Third energy-absorbing plate; 12. Energy-absorbing cotton. Detailed Implementation
[0017] 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.
[0018] like Figure 1-4 As shown, a crash beam with an energy-absorbing structure includes a main crash beam 1 for automobiles, a secondary crash beam 2 at the lower end of the main crash beam 1, a first energy-absorbing plate 6 fixedly installed between the near ends of the main crash beam 1 and the secondary crash beam 2, a second energy-absorbing plate 8 fixedly installed between the near ends of the two first energy-absorbing plates 6, a second crumple zone 9 installed inside the second energy-absorbing plate 8, a third energy-absorbing plate 11 fixedly connected between the near ends of the main crash beam 1 and the secondary crash beam 2, multiple third energy-absorbing plates 11 fixedly connected to multiple first energy-absorbing plates 6 respectively, a first crumple zone 7 fixedly installed at the connection between the third energy-absorbing plate 11 and the first energy-absorbing plate 6, and a honeycomb energy-absorbing block 10 fixedly installed inside the cavity formed by the third energy-absorbing plate 11 and the first energy-absorbing plate 6.
[0019] The aforementioned energy-absorbing anti-collision beam has a first energy-absorbing plate 6 fixedly installed between the main anti-collision beam 1 and the secondary anti-collision beam 2. The first energy-absorbing plate 6 is connected to the second energy-absorbing plate 8. Both the main anti-collision beam 1 and the secondary anti-collision beam 2 are equipped with a third energy-absorbing plate 11 connected to the first energy-absorbing plate 6. The cavity formed by the third energy-absorbing plate 11 and the first energy-absorbing plate 6 is fixedly equipped with a honeycomb energy-absorbing block 10. When the main anti-collision beam 1 is involved in a collision, it collapses through the first crumple hole 7 installed on the first energy-absorbing plate 6 and the second energy-absorbing plate 8 is also equipped with a second crumple hole 9. This causes the first energy-absorbing plate 6, the second energy-absorbing plate 8 and the third energy-absorbing plate 11 to deform and break simultaneously, thereby absorbing the kinetic energy caused by the main anti-collision beam 1 and providing better protection for the passenger compartment of the car.
[0020] In another embodiment, two energy-absorbing boxes 3 are fixedly installed at the rear end of the secondary anti-collision beam 2, and a fixing plate 4 is fixedly connected to the lower end of each of the two energy-absorbing boxes 3. Multiple slots 5 are opened on each of the two fixing plates 4. For example, two energy-absorbing boxes 3 are fixedly connected to the rear end of the secondary anti-collision beam 2. When the main anti-collision beam 1 and the secondary anti-collision beam 2 collide, the kinetic energy can be absorbed by the energy-absorbing boxes 3, and the energy-absorbing boxes 3 can be fixed on the car by the slots 5.
[0021] In another embodiment, the plurality of first energy-absorbing plates 6, the plurality of second energy-absorbing plates 8, and the third energy-absorbing plate 11 are all made of carbon fiber; For example, carbon fiber composite materials can absorb 6-7 times more energy than steel and 3-4 times more energy than aluminum during a collision, significantly improving vehicle safety.
[0022] In another embodiment, an energy-absorbing cotton 12 is fixedly connected to the upper end of the main anti-collision beam 1; For example, the effect is better when the energy-absorbing cotton 12 can absorb energy from the main anti-collision beam 1.
[0023] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A crash beam with an energy-absorbing structure, comprising a main crash beam (1) for automobiles, characterized in that: The lower end of the main anti-collision beam (1) is provided with a secondary anti-collision beam (2). A first energy-absorbing plate (6) is fixedly installed between the near ends of the main anti-collision beam (1) and the secondary anti-collision beam (2). A second energy-absorbing plate (8) is fixedly installed between the near ends of the two first energy-absorbing plates (6). A second collapse hole (9) is installed inside the second energy-absorbing plate (8). A third energy-absorbing plate (11) is fixedly connected between the near ends of the main anti-collision beam (1) and the secondary anti-collision beam (2). Multiple third energy-absorbing plates (11) are fixedly connected to multiple first energy-absorbing plates (6). A first collapse hole (7) is fixedly installed at the connection between the third energy-absorbing plate (11) and the first energy-absorbing plate (6). A honeycomb energy-absorbing block (10) is fixedly installed inside the cavity formed by the third energy-absorbing plate (11) and the first energy-absorbing plate (6).
2. The anti-collision beam with an energy-absorbing structure according to claim 1, characterized in that: Two energy-absorbing boxes (3) are fixedly installed at the rear end of the secondary anti-collision beam (2).
3. The anti-collision beam with an energy-absorbing structure according to claim 1, characterized in that: The first energy-absorbing plates (6) and the second energy-absorbing plates (8) and the third energy-absorbing plate (11) are all made of carbon fiber.
4. A crash beam with an energy-absorbing structure according to claim 2, characterized in that: The lower ends of the two energy-absorbing boxes (3) are fixedly connected to a fixing plate (4), and multiple slots (5) are opened on the two fixing plates (4).
5. A crash beam with an energy-absorbing structure according to claim 1, characterized in that: The upper end of the main anti-collision beam (1) is fixedly connected with energy-absorbing cotton (12).
6. A crash beam with an energy-absorbing structure according to claim 1, characterized in that: Both the main anti-collision beam (1) and the secondary anti-collision beam (2) are arc-shaped.