Front anti-collision beam assembly and vehicle
By installing force transmission boxes and energy absorption boxes at both ends of the front anti-collision beam body, a triangular structure is formed to expand the protection range and achieve energy absorption and force transmission effects, the existing front anti-collision beam structure has solved the problem of small protection range and poor collision performance during bias collision, and the safety and protection effect of the vehicle body are improved.
Patent Information
- Application Number
- CN202422096653.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The existing front anti-collision beam structure has a small protection range during bias collision, poor collision performance, and is difficult to effectively absorb and disperse collision energy.
A front anti-collision beam assembly is designed. By installing a force transmission box at both ends of the front anti-collision beam body, the force transmission box has a first end, a second end and a third end. The first end is connected to the front anti-collision beam body, the second end extends to the outside, and the third end extends to the rear and is located inside the second end, forming a triangular structure to expand the protection range, and is connected to the vehicle body longitudinal beam through the energy absorption box to transmit and disperse the collision force.
By expanding the protection range of the front anti-collision beam and achieving the effect of energy absorption and force transmission, the force transmission box can effectively absorb and disperse collision energy during bias collision, improving the safety and protection effect of the vehicle body.
Smart Images
Figure CN222921526U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicles, and more specifically, relates to a front anti-collision beam assembly and a vehicle. Background Art
[0002] The front anti-collision beam assembly is a transverse structural member installed at the outermost front end of the vehicle body longitudinal beam. During a vehicle collision, it is used to absorb the energy generated by the collision and ensure the integrity of the vehicle's front structure and the safety of the occupants.
[0003] During an offset collision, especially under the condition of a 25% frontal offset collision, the existing front anti-collision beam structure has a small protection range and does not play a significant role during a collision, resulting in a large collision intrusion amount and poor collision performance. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a front anti-collision beam assembly and a vehicle, aiming to enhance the protection effect of the vehicle body during an offset collision.
[0005] In a first aspect, the utility model provides a front anti-collision beam assembly, including:
[0006] A front anti-collision beam body; and
[0007] A force transmission box; the force transmission box has a first end, a second end, and a third end. The first end is connected to the end of the front anti-collision beam body, the second end extends outward from the front anti-collision beam body, the third end extends backward from the front anti-collision beam body, and the third end is located inside the second end.
[0008] In combination with the first aspect, in a possible implementation manner, the front anti-collision beam assembly further includes:
[0009] An energy absorption box, connected to the end of the front anti-collision beam body, extending backward along the front-rear direction of the vehicle body and connected to the vehicle body longitudinal beam; the energy absorption box is located inside the force transmission box, and there is a distance between the energy absorption box and the third end.
[0010] In combination with the first aspect, in a possible implementation manner, the front anti-collision beam body, the force transmission box, and the energy absorption box enclose a first deformation space, and the first deformation space has a triangular structure.
[0011] In combination with the first aspect, in a possible implementation manner, the third end also faces the vehicle body longitudinal beam.
[0012] In combination with the first aspect, in a possible implementation manner, the force transmission box includes an outer wall, a first force transmission wall, and a second force transmission wall that are sequentially connected end to end; the outer wall, the first force transmission wall, and the second force transmission wall enclose a second deformation space, and the second deformation space has a triangular structure;
[0013] Wherein, the connection between the outer wall and the first force transmission wall forms the first end, the connection between the outer wall and the second force transmission wall forms the second end, and the connection between the first force transmission wall and the second force transmission wall forms the third end.
[0014] In combination with the first aspect, in a possible implementation manner, the force transmission box further includes:
[0015] Reinforcing walls, fixedly arranged in the second deformation space, and the reinforcing walls divide the second deformation space into a plurality of mutually independent third deformation spaces.
[0016] In combination with the first aspect, in a possible implementation manner, the third end is transitioned by a fillet.
[0017] In combination with the first aspect, in a possible implementation manner, the first force transmission wall has a thickened portion.
[0018] In combination with the first aspect, in a possible implementation manner, the force transmission box is connected to the front anti-collision beam body through fasteners. A positioning rib is fixedly arranged at the end of the front anti-collision beam body, and a positioning groove is formed on the force transmission box. The positioning rib is inserted into the positioning groove.
[0019] Compared with the prior art, the front anti-collision beam assembly provided by the present utility model has the beneficial effects that: by installing force transmission boxes at both ends of the front anti-collision beam body, not only the protection range of the front anti-collision beam body is expanded, but also the force transmission box can achieve the effects of energy absorption and force transmission when the vehicle body is subjected to an offset collision. The force transmission box realizes energy absorption through its own collapse, and the force transmission box transmits the force to the entire vehicle body by hitting the vehicle body longitudinal beam, thereby realizing the dispersion of the force, and thus improving the safety of the vehicle body.
[0020] In a second aspect, the present utility model further provides a vehicle, including the front anti-collision beam assembly provided in the first aspect above.
[0021] For the vehicle provided by the present utility model, due to the adoption of the above front anti-collision beam assembly, the protection range of the front anti-collision beam body is expanded, the force transmission channels are increased, and the safety of the whole vehicle is improved. Description of the Drawings
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0023] Figure 1Schematic three-dimensional structure diagram of the front anti-collision beam assembly provided by an embodiment of the present utility model;
[0024] Figure 2 Schematic plan structure diagram of the front anti-collision beam assembly provided by an embodiment of the present utility model;
[0025] Figure 3 Along Figure 2 Cross-sectional structure diagram taken along line A-A in
[0026] Figure 4 Along Figure 2 Cross-sectional structure diagram taken along line B-B in
[0027] Figure 5 Schematic plan structure diagram of the force transmission box provided by an embodiment of the present utility model;
[0028] Figure 6 For Figure 1 Enlarged structure diagram of part A in
[0029] In the figure:
[0030] 1. Front anti-collision beam body; 11. Positioning rib;
[0031] 2. Force transmission box; 21. First end; 22. Second end; 23. Third end; 24. Outer wall; 25. First force transmission wall; 251. Thickened part; 26. Second force transmission wall; 27. Reinforcing wall; 28. Positioning groove;
[0032] 3. Energy absorption box; 41. First deformation space; 42. Second deformation space; 43. Third deformation space. Detailed implementation manners
[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0034] It should be noted that the orientation or positional relationship indicated by "front", "rear", "inner", "outer", "upper", "lower", etc. in this embodiment is based on the orientation of the vehicle itself. Among them, the head of the vehicle represents "front", the tail of the vehicle represents "rear", the top of the vehicle represents "upper", the bottom of the vehicle represents "lower", the "inner" side refers to the side facing the driver's cab, and the "outer" side refers to the side facing the outside of the driver's cab.
[0035] In addition, the front-to-back direction of the vehicle body defined in the embodiments of the present utility model refers to the front-to-back direction in the forward direction during the driving of the vehicle, the left-to-right direction of the vehicle body refers to the left-to-right direction in the forward direction during the driving of the vehicle, and the up-and-down direction of the vehicle body refers to the up-and-down direction in the forward direction during the driving of the vehicle.
[0036] Please refer to Figure 1 and Figure 2 together. Now, a front anti-collision beam assembly provided by the present utility model will be described. A front anti-collision beam assembly includes a front anti-collision beam body 1 and a force transmission box 2.
[0037] Among them, the force transmission box 2 has a first end 21, a second end 22 and a third end 23. The first end 21 is connected to the end of the front anti-collision beam body 1. The second end 22 extends outward from the front anti-collision beam body 1. The third end 23 extends backward from the front anti-collision beam body 1, and the third end 23 is located inside the second end 22.
[0038] Specifically, the front anti-collision beam body 1 is in a long strip shape, and both ends of the front anti-collision beam body 1 are bent backward towards the vehicle body. The second end 22 on the force transmission box 2 extends out from the end of the front anti-collision beam body 1, which can expand the protection range in the left-to-right direction of the vehicle body. The third end 23 on the force transmission box 2 extends backward towards the vehicle body, which can achieve the wrapping of the side surface, thereby covering more side areas of the vehicle body, making the vehicle body safer when receiving an offset collision. When the force transmission box 2 is collided, the third end 23 can contact the vehicle body structure behind, so as to transmit the force to the vehicle body structure behind, which is beneficial to the dispersion of the force and further improves the safety of the vehicle body during the collision.
[0039] When an offset collision occurs, the end of the front anti-collision beam body 1 is forced to bend inward, and the force transmission box 2 contacts the vehicle body structure. At this time, a part of the collision force is absorbed and offset by the force transmission box 2, and the other part of the collision force is conducted to the vehicle body structure. Since the collision force is reduced by the force transmission box 2, the collision force received by the vehicle body structure is smaller, thereby improving the safety of the vehicle body during the offset collision.
[0040] The overall shape of the force transmission box 2 is triangular, and the overall structure is more stable. It can maintain a certain stability and firmness when receiving a minor collision, has better protection for vehicle body parts, and reduces the cost during maintenance. At the same time, the triangular structure formed by the force transmission box 2 enables the force transmission box 2 to absorb more energy when undergoing buckling and is beneficial to transmitting the force to the vehicle body, thereby further improving the safety during the collision.
[0041] In some embodiments, the material of the front anti-collision beam body 1 and the force transmission box 2 is aluminum alloy. The aluminum alloy material can meet the requirements of lightweight, and has stronger anti-corrosion and rust-proof capabilities. Therefore, there is no need to specifically design a boss structure at the installation point to ensure sufficient electrocoating, making the component design simpler. There is no need for in-vehicle electrocoating, which simplifies the manufacturing process.
[0042] In some embodiments, referring to Figure 3 , the cross-sectional shape of the front anti-collision beam body 1 is a square-eye shape. While meeting the requirements of lightweight, the front anti-collision beam body 1 can withstand greater loads, effectively resist external impact forces, and effectively reduce the manufacturing cost of materials.
[0043] In some embodiments, the height of the front anti-collision beam body 1 is 100 mm - 150 mm, and the thickness is 2.5 mm - 3.5 mm. It should be understood that setting the height of the front anti-collision beam body 1 to 100 mm - 150 mm can reduce the occlusion of the front condenser's windward surface and reduce the impact on the condenser's heat dissipation efficiency. Setting the thickness of the front anti-collision beam body 1 to 2.5 mm - 3.5 mm can be more lightweight while ensuring the structural strength of the front anti-collision beam body 1 itself, reducing the manufacturing cost.
[0044] In some embodiments, referring to Figure 1 and Figure 2 , the front anti-collision beam assembly further includes an energy absorption box 3. The energy absorption box 3 is connected to the end of the front anti-collision beam body 1, and extends backward along the longitudinal direction of the vehicle body and is connected to the vehicle body longitudinal beam. The energy absorption box 3 is located inside the force transmission box 2, and there is a spacing between the energy absorption box 3 and the third end 23.
[0045] Specifically, the center of the energy absorption box 3 is aligned with the center of the vehicle body longitudinal beam, and the boundary of the energy absorption box 3 is aligned with the boundary of the vehicle body longitudinal beam, so as to ensure that the energy absorption box 3 can effectively conduct the collision force to the vehicle body longitudinal beam during a collision. There is a certain spacing between the energy absorption box 3 and the third end 23 of the force transmission box 2, so that when the vehicle passes through a bumpy road section, there will be no abnormal noise generated between the force transmission box 2 and the energy absorption box 3 due to mutual impact, improving the driving experience.
[0046] In a minor collision, the front anti-collision beam body 1 can directly protect the vehicle body components, reducing the repair cost. In a severe collision, the energy absorption box 3 absorbs the energy and impact force generated by the collision through its own folding deformation, and transmits the impact force to the vehicle body longitudinal beam, so as to disperse the impact force through the overall design of the vehicle body structure and protect the safety of the passengers in the vehicle.
[0047] In some embodiments, the energy absorption box 3 is made of aluminum alloy. The aluminum alloy material can meet the requirements of lightweight, and has stronger anti-corrosion and rust-proof capabilities. Thus, there is no need to specially design a boss structure at the installation point to ensure sufficient electrophoresis, making the structure of the component design simpler. There is no need for in-line electrophoresis, simplifying the manufacturing process. At the same time, the energy absorption box 3 and the front bumper beam body 1 are welded by MIG welding, with stronger connection stability.
[0048] In some embodiments, referring to Figure 4 , the cross-sectional shape of the energy absorption box 3 is a "day" shape. The effective length of the energy absorption box 3 is greater than 120 mm, and the thickness of the energy absorption box 3 is 2 mm - 3 mm, enabling the energy absorption box 3 to reduce weight while ensuring its own energy absorption effect, thus being more lightweight and reducing manufacturing costs. The length of the energy absorption box 3 is coordinated with the position of the force transmission box 2, such that when the force transmission box 2 is impacted, it can contact the vehicle body longitudinal beam, thereby facilitating the transmission of the impact force to the vehicle body longitudinal beam and achieving a better force transmission effect.
[0049] In some embodiments, the energy absorption box 3 is connected to the vehicle body longitudinal beam by bolts, making the energy absorption box 3 convenient for installation and disassembly.
[0050] In some embodiments, referring to Figure 1 and Figure 2 , the front bumper beam body 1, the force transmission box 2, and the energy absorption box 3 enclose a first deformation space 41, and the first deformation space 41 has a triangular structure.
[0051] The front bumper beam body 1, the force transmission box 2, and the energy absorption box 3 enclose a triangular first deformation space 41, making the first deformation space 41 have a certain stability. At the same time, a Y-shaped force transmission channel is formed between the force transmission box 2 and the energy absorption box 3. When the front bumper beam body 1 is subjected to an offset collision, the force transmission box 2 and the energy absorption box 3 collapse together, absorbing more energy and transmitting the impact force to the vehicle body longitudinal beam, thereby making the vehicle body safer when dealing with an offset collision.
[0052] In some embodiments, referring to Figure 1 and Figure 2 , the third end 23 also faces the vehicle body longitudinal beam. When an offset collision occurs, the force transmission box 2 can contact the vehicle body longitudinal beam, thereby facilitating the transmission of the impact force to the vehicle body longitudinal beam and achieving a better force transmission effect.
[0053] In some embodiments, referring to Figure 5, the force transmission box 2 includes an outer wall 24, a first force transmission wall 25, and a second force transmission wall 26 that are connected in sequence end to end. The outer wall 24, the first force transmission wall 25, and the second force transmission wall 26 enclose a second deformation space 42, and the second deformation space 42 has a triangular structure. Among them, the connection between the outer wall 24 and the first force transmission wall 25 forms a first end 21, the connection between the outer wall 24 and the second force transmission wall 26 forms a second end 22, and the connection between the first force transmission wall 25 and the second force transmission wall 26 forms a third end 23.
[0054] The triangular arrangement structure formed by the outer wall 24, the first force transmission wall 25, and the second force transmission wall 26 of the force transmission box 2 has higher stability, so that when the vehicle body is slightly collided, the force transmission box 2 is not easily deformed, thereby being able to protect the vehicle body parts and reducing the maintenance cost.
[0055] In some embodiments, refer to Figure 5 , the force transmission box 2 further includes a reinforcing wall 27. The reinforcing wall 27 is fixedly arranged in the second deformation space 42, and the reinforcing wall 27 divides the second deformation space 42 into a plurality of mutually independent third deformation spaces 43.
[0056] By dividing the second deformation space 42 on the force transmission box 2 into a plurality of mutually independent third deformation spaces 43 through the reinforcing wall 27, the force transmission box 2 forms a honeycomb-like internal structure, which can effectively disperse and bear external forces from various directions, improving the compressive capacity of the force transmission box 2, saving the amount of materials used in manufacturing, and enabling the force transmission box 2 to have higher structural strength while maintaining light weight.
[0057] In some embodiments, refer to Figure 5 , the third end 23 is transitioned by a fillet, and the third end 23 is arranged towards the vehicle body longitudinal beam. When a collision occurs, after the fillet-shaped third end 23 contacts the vehicle body longitudinal beam, the third end 23 will deform, so that the fillet-shaped third end 23 will gradually fit on the vehicle body longitudinal beam, and the contact area with the vehicle body longitudinal beam gradually increases, thereby making the pressure received by the vehicle body longitudinal beam smaller, making it not easy for the force transmission box 2 to invade the vehicle body longitudinal beam when transmitting the collision force, reducing the damage to the vehicle body longitudinal beam, and thus improving the safety of the vehicle body structure.
[0058] In some embodiments, refer to Figure 5 , the first force transmission wall 25 has a thickened portion 251. The thickened portion 251 can improve the structural strength of the first force transmission wall 25, making the triangular structure formed by the first force transmission wall 25, the front anti-collision beam body 1, and the energy absorption box 3 more stable and not easily deformed during a slight collision, playing a better role in protecting the vehicle body parts. At the same time, the first force transmission wall 25 also further improves the structural strength of the force transmission box 2 through the thickened portion 251, enabling the force transmission box 2 to absorb more energy when undergoing crush deformation and improving the safety of the vehicle body during an offset collision.
[0059] In some embodiments, referring to Figure 6 , the force transmission box 2 is connected to the front anti-collision beam body 1 through fasteners. A positioning rib 11 is fixedly arranged at the end of the front anti-collision beam body 1, and a positioning groove 28 is formed on the force transmission box 2. The positioning rib 11 is inserted into the positioning groove 28.
[0060] Specifically, connection holes are formed on both the force transmission box 2 and the front anti-collision beam body 1. After aligning the connection holes on the force transmission box 2 and the front anti-collision beam body 1, they are fixedly connected through bolts, which facilitates the installation and disassembly of the force transmission box 2.
[0061] On the one hand, the positioning rib 11 extends along the length direction of the front anti-collision beam body 1, which can improve the structural strength of the front anti-collision beam body 1. On the other hand, the positioning rib 11 can play a role in positioning the installation of the force transmission box 2. By inserting the positioning rib 11 and the positioning groove 28 together, the positioning of the position of the force transmission box 2 can be realized, thus facilitating the connection of the force transmission box 2 and the front anti-collision beam body 1 with bolts.
[0062] All in all, compared with the prior art, a front anti-collision beam assembly provided by the present utility model not only expands the protection range of the front anti-collision beam body 1 by adding the force transmission box 2 at both ends of the front anti-collision beam body 1, but also the force transmission box 2 can achieve the effects of energy absorption and force transmission when the vehicle body is subjected to an offset collision. The force transmission box 2 realizes energy absorption through its own collapse, and the force transmission box 2 transmits the force to the entire vehicle body by hitting the vehicle body longitudinal beam, thereby realizing the dispersion of force, and thus improving the safety of the vehicle body. At the same time, the triangular arrangement structure formed by the force transmission box 2 can also provide a certain degree of stability, so that when the vehicle body is subjected to a low-speed collision, it is not easy to deform, can play a role in protecting the vehicle body parts, and reduce the maintenance cost.
[0063] Based on the same inventive concept, the present utility model also provides a vehicle, including the front anti-collision beam assembly in the above embodiments. The structure and principle of the front anti-collision beam assembly have been explained in the above embodiments and will not be elaborated here.
[0064] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A front anti-collision beam assembly, characterized in that: include: A front anti-collision beam body (1); and A force transmission box (2); the force transmission box (2) has a first end (21), a second end (22) and a third end (23), the first end (21) being connected to the end of the front anti-collision beam body (1), the second end (22) extending outwardly of the front anti-collision beam body (1), the third end (23) extending rearwardly of the front anti-collision beam body (1), and the third end (23) being located on the inner side of the second end (22).
2. A front anti-collision beam assembly as claimed in claim 1, characterized in that: The front anti-collision beam assembly also includes: An energy absorption box (3) is connected to the end of the front anti-collision beam body (1), extends rearward along the front-rear direction of the vehicle body and is connected to the longitudinal beam of the vehicle body; the energy absorption box (3) is located on the inner side of the force transmission box (2), and there is a distance between the energy absorption box (3) and the third end (23).
3. A front anti-collision beam assembly as claimed in claim 2, characterized in that: The front anti-collision beam body (1), the force transmission box (2) and the energy absorption box (3) enclose a first deformation space (41), and the first deformation space (41) is a triangular structure.
4. A front anti-collision beam assembly as claimed in claim 2, characterized in that: The third end (23) also faces the vehicle body longitudinal beam.
5. The front anti-collision beam assembly according to claim 1, characterized in that: The force transmission box (2) comprises an outer wall (24), a first force transmission wall (25) and a second force transmission wall (26) which are connected end to end in sequence; the outer wall (24), the first force transmission wall (25) and the second force transmission wall (26) enclose a second deformation space (42), and the second deformation space (42) is a triangular structure; The junction of the outer wall (24) and the first force transmission wall (25) forms the first end (21), the junction of the outer wall (24) and the second force transmission wall (26) forms the second end (22), and the junction of the first force transmission wall (25) and the second force transmission wall (26) forms the third end (23).
6. A front anti-collision beam assembly as claimed in claim 5, characterized in that: The force transmission box (2) also includes: The reinforcing wall (27) is fixedly arranged in the second deformation space (42), and the reinforcing wall (27) divides the second deformation space (42) into a plurality of mutually independent third deformation spaces (43).
7. The front anti-collision beam assembly according to claim 1, characterized in that: The third end (23) is transitioned through a rounded corner.
8. The front anti-collision beam assembly according to claim 5, characterized in that: The first force transmission wall (25) has a thickened portion (251).
9. The front anti-collision beam assembly according to claim 1, characterized in that: The force transmission box (2) is connected to the front anti-collision beam body (1) via a fastener, a positioning rib (11) is fixedly provided at the end of the front anti-collision beam body (1), a positioning groove (28) is provided on the force transmission box (2), and the positioning rib (11) is inserted into the positioning groove (28).
10. A vehicle, characterized in that: It comprises a front anti-collision beam assembly as claimed in any one of claims 1 to 9.