Gas storage anti-collision beam

Abstract

The utility model discloses a kind of gas storage anti-collision beams, including base and crossbeam main body, the lower surface of crossbeam main body is close to its end portion and is provided with the support column connected with base;The cross section of crossbeam main body is rounded rectangle shape;And at least one Y-shaped reinforcing rib is arranged in crossbeam main body, and the outer wall of Y-shaped reinforcing rib and the inner wall of crossbeam main body form at least two first gas storage spaces with equivalent volume;The upper and lower ends of Y-shaped reinforcing rib and the inner wall of crossbeam main body form two second gas storage spaces with equivalent volume;The volume of first gas storage space is greater than the volume of second gas storage space;First gas storage space and second gas storage space are symmetrically arranged in crossbeam main body.The support point of Y-shaped reinforcing rib and crossbeam main body is increased, so that the rigidity of crossbeam main body is increased, and the stress deformation of crossbeam main body is effectively avoided;Meanwhile, the wall thickness of crossbeam main body is also reduced, the weight of crossbeam main body is reduced, and lightweight is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle manufacturing, and particularly relates to a gas storage anti-collision beam. Background Art

[0002] Existing automobile anti-collision beams are usually of solid or common hollow structures and do not have a gas storage function. With the rapid development of new energy vehicles, gas storage systems have become essential configurations for some vehicle models. However, traditional anti-collision beams cannot meet the gas storage requirement, which results in the need for additional gas storage devices in vehicles, not only occupying space but also increasing the manufacturing cost of the entire vehicle.

[0003] To solve this problem, a beam structure with a gas storage function has emerged in the prior art, for example, the "Method for Manufacturing Gas Storage Beam and Gas Storage Beam" disclosed in Chinese Patent CN114603901A. In this technical solution, the beam is designed as a hollow rectangular shape to realize gas storage. However, in actual collision conditions, such a beam structure with a rectangular cross-section has insufficient rigidity and is prone to deformation, resulting in leakage of the internally stored gas and affecting the safety of the system.

[0004] To improve the structural strength of the beam, those skilled in the art can easily conceive of arranging reinforcing ribs inside the beam. As specifically shown in 1, the cross-section of the beam is configured as a multi-chamber structure such as a "ri"-shape or "mu"-shape. Although such a structure enhances the rigidity to a certain extent, it also brings new problems: on the one hand, the introduction of the reinforcing ribs significantly increases the overall weight of the beam, which is not conducive to the lightweight design of the vehicle and affects the energy consumption economy; on the other hand, the stress concentration phenomenon of the structure is relatively prominent when subjected to impact, and local deformation or cracking is particularly prone to occur at the connection parts of the reinforcing ribs, so there is still a risk of gas leakage, and the structural reliability needs to be further improved.

[0005] Therefore, how to give consideration to lightweight design and uniform stress distribution on the premise of ensuring the gas storage function and collision safety is still a technical problem to be solved urgently in the current structural design of gas storage type anti-collision beams. Contents of the Utility Model

[0006] The purpose of the utility model is to solve the above-mentioned problems existing in the prior art, and to provide a gas storage anti-collision beam.

[0007] The purpose of the utility model is realized through the following technical solutions: An air-storage anti-collision beam includes a base and a crossbeam body. A support column connected to the base is disposed on the lower surface of the crossbeam body near its end. The crossbeam body has a rounded cross-section. At least one Y-shaped reinforcing rib is symmetrically arranged along the width of its cross-section within the crossbeam body. At least two first air-storage spaces of equal volume are formed between the outer wall of the Y-shaped reinforcing rib and the inner wall of the crossbeam body. Two second air-storage spaces of equal volume are formed between the upper and lower ends of the Y-shaped reinforcing rib and the inner wall of the crossbeam body. The volume of the first air-storage space is larger than the volume of the second air-storage space. The first and second air-storage spaces are centrally symmetrically arranged within the crossbeam body.

[0008] Preferably, there are two Y-shaped reinforcing ribs, which divide the main body of the crossbeam into three first gas storage spaces of equal volume and four second gas storage spaces of equal volume.

[0009] Preferably, the wall thickness of the four arc-shaped corner segments of the main body of the crossbeam is in the range of 3mm to 5mm.

[0010] Preferably, the wall thickness of the main body of the crossbeam in the two length directions is less than the wall thickness of the arc-shaped corner segment; and the wall thickness of the arc-shaped corner segment is 1.6 times the wall thickness of the main body of the crossbeam in the two length directions.

[0011] Preferably, the wall thickness of the main body of the crossbeam in the two width directions is greater than the wall thickness of the main body of the crossbeam in the two length directions; and the wall thickness of the arc-shaped corner segment is 1.3 times the wall thickness of the main body of the crossbeam in the two width directions.

[0012] Preferably, the thickness of the Y-shaped reinforcing rib is less than the wall thickness of the main body of the crossbeam in the two length directions, and the thickness of the Y-shaped reinforcing rib is half the wall thickness of the arc-shaped corner segment.

[0013] Preferably, both ends of the main body of the crossbeam are covered by end caps.

[0014] The advantages of this utility model's technical solution are mainly reflected in: By increasing the support points between the beam and the main body through Y-shaped reinforcing ribs, the rigidity of the main body of the beam is increased, effectively preventing deformation of the main body of the beam under stress; at the same time, by reducing the wall thickness of the main body of the beam, the weight of the main body of the beam is reduced, achieving lightweighting. The reinforcing ribs are designed in a Y-shape, which can guide the collapse of the main body of the crossbeam when it is under stress, so as to achieve local bending of the main body of the crossbeam without causing the main body of the crossbeam to break or disintegrate, thereby improving service life and vehicle safety. The cross-section of the main beam is designed as a rounded rectangle, so that the maximum stress of the entire structure is at the corner, thereby reducing the high stress area of ​​the overall structure and improving the safety of the main beam. Attached Figure Description

[0015] Figure 1 : Structural diagram of the background technology of this utility model; Figure 2 : A perspective view of a preferred embodiment of the present invention; Figure 3 : A partial hidden perspective view of a preferred embodiment of this utility model; Figure 4 : A cross-sectional view of the main body of the crossbeam in a preferred embodiment of this utility model; Figure 5 (a): Stress distribution diagram of the structure in the background art of this utility model; Figure 5 (b): Stress distribution diagram of the preferred embodiment of this utility model; Figure 6 (a): Stress distribution diagram of the structure in the background technology of this utility model under bending load; Figure 6 (b): Stress distribution diagram of the preferred embodiment of this utility model under bending conditions; Figure 7 (a): Stress distribution diagram of the reinforcing rib under bending load in the background art of this utility model; Figure 7 (b): Stress distribution diagram of the preferred embodiment of the present invention under bending load. Detailed Implementation

[0016] The purpose, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this utility model, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

[0017] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0018] This utility model discloses a gas-storage anti-collision beam, including as follows: Figure 2The diagram shows a base 1 and a crossbeam body 2. A support column 3, connected to the base 1, is located on the lower surface of the crossbeam body 2 near its end. Furthermore, both ends of the crossbeam body 2 are covered by end caps 22 to ensure effective gas storage inside the crossbeam body.

[0019] Specifically, such as Figure 3 As shown, the cross-section of the beam body 2 is rounded; and at least one Y-shaped reinforcing rib 21 is symmetrically arranged along its cross-sectional width within the beam body 2. At least two first air storage spaces 201 of equivalent volume are formed between the outer wall of the Y-shaped reinforcing rib 21 and the inner wall of the beam body 2. Two second air storage spaces 202 of equivalent volume are formed between the upper and lower ends of the Y-shaped reinforcing rib 21 and the inner wall of the beam body 2. The volume of the first air storage space 201 is larger than the volume of the second air storage space 202. The first air storage space 201 and the second air storage space 202 are centrally symmetrically arranged within the beam body 2 to ensure uniform deformation under pressure loads.

[0020] Further such as Figure 4 As shown, the present invention preferably provides two Y-shaped reinforcing ribs 21, and divides the main body 2 of the crossbeam into three first gas storage spaces 201 of equal volume and four second gas storage spaces 202 of equal volume.

[0021] Furthermore, the four arc-shaped corner segments of the main body 2 of the crossbeam are as follows: Figure 4 The wall thickness at point a shown is in the range of 3mm to 5mm, and is preferably 4mm in this invention. The wall thicknesses in the two length directions of the main beam 2 are as follows: Figure 4 The wall thickness at point b shown is less than the wall thickness of the arc-shaped corner segment a; and the wall thickness of the arc-shaped corner segment is 1.6 times the wall thickness of the main body 2 in both length directions. In this invention, the wall thickness in the length directions indicated by the two points b is preferably designed to be 2.5 mm. The wall thickness in the two width directions of the main body 2 is as follows... Figure 4 The wall thickness at point c shown is greater than the wall thickness along the two length directions b of the main body 2 of the crossbeam; and the wall thickness of the arc-shaped corner segment is 1.3 times the wall thickness along the two width directions of the main body 2 of the crossbeam. Preferably, the wall thickness along the two width directions indicated by the two points c in this invention is designed to be 3mm. Furthermore, the specific wall thickness of the main body of the crossbeam can be adjusted according to requirements and is not limited here, as long as it meets the mechanical performance requirements such as the bending strength of the crossbeam. Compared with the structure based on the improved main body of the crossbeam, the wall thickness of the main body of the crossbeam disclosed in this invention results in the same volume and a lighter overall weight, meeting the requirements for lightweight construction.

[0022] The thickness of the Y-shaped reinforcing rib 21 is as follows: Figure 4 The thickness at point d shown is less than the wall thickness of the main beam 2 along its two length directions, and the thickness of the Y-shaped reinforcing rib 21 is half the wall thickness of the arc-shaped corner segment. Preferably, the thickness of the Y-shaped reinforcing rib 21 is designed to be 2mm in this invention.

[0023] In this invention, the reinforcing ribs are designed in a Y-shape and symmetrically arranged along the cross-sectional width of the main beam 2, increasing the support points between the reinforcing ribs and the main beam 2, thereby increasing the rigidity of the main beam and making it less prone to deformation; at the same time, it reduces stress concentration at the connection between the reinforcing ribs and the main beam frame. Figure 5 As shown in (a), the stress distribution diagram clearly shows that the beam structure with ordinary stiffeners is in a high-stress zone and is most likely to experience fatigue failure first during the inflation / deflation process. Furthermore, the entire structure is prone to exhibiting conditions such as... Figure 6 The problem of cracking due to excessive stiffness of the reinforcing ribs is shown in (a). Figure 5 (b) shows the stress distribution diagram of the structure disclosed in this utility model. It can be clearly seen that the high stress area of ​​the beam structure disclosed in this utility model is only at the arc corner, and its range is significantly smaller than that of the other two parts. Figure 5 (a) The structural material disclosed in this utility model bears a smaller load and is less prone to fatigue failure. Specifically, as follows... Figure 6 (a) and Figure 6 As shown in (b), a beam body with conventional reinforcing ribs and a beam body with Y-shaped reinforcing ribs disclosed in this utility model are compared under the same bending load. Figure 6 (a) A clear fracture is observed, while Figure 6 (b) It only shows obvious bending but does not break. Therefore, the main structure of the beam disclosed in this utility model is relatively safe.

[0024] Furthermore, such as Figure 7 The image shows a comparison of the two types of stiffeners under the same bending load test. Figure 7 In (a), since the main body of the beam has been broken, the ordinary reinforcing ribs inside it will inevitably break, and at this time, the beam is prone to disintegration. Figure 7 (b) When the Y-shaped reinforcing rib of this utility model is subjected to force, its two bifurcated ends will be subjected to force first and then collapse. Under the condition of ensuring strength, its frame is less likely to be damaged, so the Y-shaped reinforcing rib will hardly break. That is, the Y-shaped reinforcing rib can guide the collapse when the main body of the crossbeam is subjected to force, realize the local bending of the main body of the crossbeam, and prevent the main body of the crossbeam from breaking or disintegrating, thereby improving the service life and vehicle safety.

[0025] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A gas-storage anti-collision beam, comprising a base (1) and a crossbeam body (2), wherein a support column (3) connected to the base (1) is provided on the lower surface of the crossbeam body (2) near its end; characterized in that: The cross-section of the main body of the beam (2) is rounded; and at least one Y-shaped reinforcing rib (21) is provided in the main body of the beam (2) symmetrically arranged along its cross-sectional width direction. The outer wall of the Y-shaped reinforcing rib (21) and the inner wall of the main body of the beam (2) form at least two first gas storage spaces (201) of equal volume; the upper and lower ends of the Y-shaped reinforcing rib (21) and the inner wall of the main body of the beam (2) form two second gas storage spaces (202) of equal volume; the volume of the first gas storage space (201) is greater than the volume of the second gas storage space (202); the first gas storage space (201) and the second gas storage space (202) are centrally symmetrically arranged in the main body of the beam (2).

2. The gas-storage anti-collision beam according to claim 1, characterized in that: There are two Y-shaped reinforcing ribs (21), which divide the main body of the crossbeam (2) into three first gas storage spaces (201) of equal volume and four second gas storage spaces (202) of equal volume.

3. The gas-storage anti-collision beam according to claim 2, characterized in that: The wall thickness of the four arc-shaped corner sections of the main body of the crossbeam (2) is in the range of 3mm to 5mm.

4. The gas-storage anti-collision beam according to claim 3, characterized in that: The wall thickness of the main body of the crossbeam (2) in the two length directions is less than the wall thickness of the arc-shaped corner segment; and the wall thickness of the arc-shaped corner segment is 1.6 times the wall thickness of the main body of the crossbeam (2) in the two length directions.

5. The gas-storage anti-collision beam according to claim 4, characterized in that: The wall thickness of the main body of the crossbeam (2) in the two width directions is greater than the wall thickness of the main body of the crossbeam (2) in the two length directions; and the wall thickness of the arc corner section is 1.3 times the wall thickness of the main body of the crossbeam (2) in the two width directions.

6. The gas-storage anti-collision beam according to claim 5, characterized in that: The thickness of the Y-shaped reinforcing rib (21) is less than the wall thickness of the main body of the crossbeam (2) in the two length directions, and the thickness of the Y-shaped reinforcing rib (21) is half the wall thickness of the arc-shaped corner section.

7. The gas-storage anti-collision beam according to claim 1, characterized in that: The two ends of the main body of the crossbeam (2) are covered by end caps (22).

Images