Split filling type anti-collision beam

Abstract

The utility model relates to the technical field of anti-collision beams, in particular to a split filling type anti-collision beam which comprises an upper shell body, a lower shell body, an upper shell body and a lower shell body. The lower shell is provided with a positioning part which extends upwards; the positioning part is inserted into the opening part, and the lower shell and the upper shell are connected to form an energy absorption cavity; the filler is arranged in the energy absorption cavity; the outer contour of the filler is matched with the energy absorption cavity. Compared with the prior art, the anti-collision beam has the advantages that the anti-collision beam is divided into the upper shell and the lower shell, and the filler is filled between the upper shell and the lower shell, so that the structure of the whole anti-collision beam is simplified, the filler can be freely placed, the selection of the filler is increased, and the flexibility is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the crash beam, especially relates to a split filling type crash beam. BACKGROUND

[0002] As an important component in the automobile structure, the crash beam has various innovative schemes for a long time, and the materials used in these schemes are various, including aluminum alloy, steel and composite materials. The main function of the crash beam is to resist impact in low-speed collision and protect the vehicle structure from damage. In high-speed collision, it can absorb most of the collision energy to ensure the safety of the passengers. Therefore, whether the crash beam is made of metal or non-metal material, it requires both sufficient rigidity to resist collision and excellent energy absorption performance to protect the passengers.

[0003] The main beam and the energy absorption box of the crash beam both have a cavity structure, and different cavity structures can bring different collision absorption effects. However, the form of the cavity structure is relatively complex, and the process requirement in the production stage is very high, which not only increases the production difficulty, but also brings certain difficulties to the subsequent production debugging work. In addition, some fillers need to be added inside the cavity to enhance the performance, but the placement of the filler usually needs to be done from the side, which will undoubtedly further affect the production rhythm and reduce the production efficiency. SUMMARY

[0004] Therefore, the utility model aims at providing a split filling type crash beam, which divides the crash beam into an upper shell and a lower shell, fills the filler between the upper and lower shells, simplifies the structure of the entire crash beam, allows the filler to be placed freely, and increases the selectivity of the filler and the flexibility.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a split filling type crash beam, comprising: an upper shell, the end face of the upper shell is provided with a port; a lower shell, the lower shell is provided with a positioning part extending upward; the positioning part is inserted into the port; the lower shell is connected with the upper shell to form an energy absorption cavity; a filler is arranged in the energy absorption cavity; and the outer contour of the filler is matched with the energy absorption cavity.

[0006] Further, the upper shell comprises a first crash beam body, two first energy absorption box bodies and two first mounting plates, the two first energy absorption box bodies are arranged at the two ends of the first crash beam body, and the first mounting plates are connected with the first energy absorption box bodies.

[0007] Further, the first crash beam body comprises a first crash beam plate, first side plates are symmetrically extended on the two sides of the first crash beam plate, and first connecting plates are extended outward on the sides of the free ends of the two first side plates.

[0008] Further, each first energy absorption box body is connected with the first anti-collision beam body at one end, and each first energy absorption box body is matched with the first anti-collision beam body at the connected end; each first energy absorption box body comprises a first energy absorption plate, and second side plates are symmetrically arranged on both sides of the first energy absorption plate.

[0009] Further, the mouth is arranged on the first connecting plate and the second connecting plate, respectively.

[0010] Further, the lower shell comprises a second anti-collision beam body, two second energy absorption box bodies and two second mounting plates; the two second energy absorption box bodies are arranged at two ends of the second anti-collision beam body, and the second mounting plates are connected with the second energy absorption box bodies.

[0011] Further, the second anti-collision beam body comprises a second anti-collision beam plate, and third side plates are symmetrically arranged on both sides of the second anti-collision beam plate.

[0012] Further, each second energy absorption box body is connected with the second anti-collision beam body at one end, and each second energy absorption box body is matched with the second anti-collision beam body at the connected end; each second energy absorption box body comprises a second energy absorption plate, and fourth side plates are symmetrically arranged on both sides of the second energy absorption plate.

[0013] Further, the positioning part is arranged on the third side plate and the fourth side plate, respectively.

[0014] Further, the filler comprises a hard section and a soft section.

[0015] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0016] 1) By dividing the anti-collision beam into an upper shell and a lower shell and filling the filler between the upper shell and the lower shell, not only the structure of the entire anti-collision beam is simplified, but also the filler can be freely placed in the energy absorption cavity, the selection of the filler is increased, and the flexibility in the manufacturing process is improved.

[0017] 2) The materials of the upper shell and the lower shell are preferably polypropylene or polyamide, and the upper shell and the lower shell are integrally injection molded. This selection is mainly based on the many advantages of polypropylene or polyamide, such as light weight, impact resistance, corrosion resistance, good processing performance, low cost and good environmental protection, etc. At the same time, these characteristics enable the anti-collision beam to absorb and disperse impact energy to a certain extent when the anti-collision beam is impacted, thereby protecting the safety of the vehicle and the passengers. The use of the integrally injection molding process also improves the production efficiency, making the production of the upper shell and the lower shell more efficient and stable. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this patent, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0019] Fig. 1 is a structural schematic view of the split filling type anti-collision beam according to the embodiment of the present application;

[0020] Fig. 2 is an exploded view of the split filling type anti-collision beam according to the embodiment of the present application;

[0021] Fig. 3 is a structural schematic view of the upper shell according to the embodiment of the present application;

[0022] Fig. 4 is a structural schematic view of the lower shell according to the embodiment of the present application.

[0023] The reference signs include: 1, upper shell; 11, first anti-collision beam body; 111, first anti-collision beam plate; 112, first side plate; 113, first connecting plate; 12, first energy absorption box body; 121, first energy absorption plate; 122, second side plate; 123, second connecting plate; 13, first mounting plate; 14, mouth part; 2, lower shell; 21, second anti-collision beam body; 211, second anti-collision beam plate; 212, third side plate; 22, second energy absorption box body; 221, second energy absorption plate; 222, fourth side plate; 23, second mounting plate; 24, positioning part; 3, filler; 31, hard segment; 32, soft segment. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not constitute a limitation on the present application.

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0027] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0028] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0029] As shown in Figs. 1 to 4 The utility model discloses a kind of split filling type crash beams, comprising: upper shell 1, lower shell 2 and filler 3. Lower shell 2 is connected with upper shell 1 to form energy absorption cavity, and filler 3 is arranged in energy absorption cavity. The outer contour of filler 3 is adapted to energy absorption cavity.

[0030] In the embodiment, filler 3 is arranged in energy absorption cavity between lower shell 2 and upper shell 1, can absorb the energy generated by collision in first time through filler 3 when crash beam is collided, reduce the damage of impact force to vehicle body and personnel in vehicle.

[0031] Upper shell 1 includes first crash beam body 11, two first energy absorption box bodies 12 and two first mounting plates 13. Two first energy absorption box bodies 12 are arranged at both ends of first crash beam body 11, and first mounting plate 13 is connected with first energy absorption box body 12. In the embodiment, first crash beam body 11 is arc-shaped. The end of each first energy absorption box body 12 connected with first crash beam body 11 is adapted to first crash beam body 11.

[0032] Specifically, the first anti-collision beam body 11 comprises a first anti-collision beam plate 111, two first side plates 112 extending from both sides of the first anti-collision beam plate 111 in the same direction, and a first connecting plate 113 extending outward from the side of the free end of each first side plate 112 opposite to the other. Each first energy absorption box body 12 comprises a first energy absorption plate 121, two second side plates 122 extending from both sides of the first energy absorption plate 121 in the same direction, and a second connecting plate 123 extending outward from the side of the free end of each second side plate 122 opposite to the other. The first connecting plate 113 and the second connecting plate 123 are both provided with a mouth portion 14.

[0033] The lower shell 2 comprises a second anti-collision beam body 21, two second energy absorption box bodies 22, and two second mounting plates 23. The two second energy absorption box bodies 22 are arranged at the two ends of the second anti-collision beam body 21, and the second mounting plates 23 are connected with the second energy absorption box bodies 22. In this embodiment, the shape of the second anti-collision beam body 21 is adapted to that of the first anti-collision beam body 11. The end of each second energy absorption box body 22 connected with the second anti-collision beam body 21 is adapted to the second anti-collision beam body 21.

[0034] Specifically, the second anti-collision beam body 21 comprises a second anti-collision beam plate 211, and two third side plates 212 extending from both sides of the second anti-collision beam plate 211 in the same direction. Each second energy absorption box body 22 comprises a second energy absorption plate 221, and two fourth side plates 222 extending from both sides of the second energy absorption plate 221 in the same direction. The third side plates 212 and the fourth side plates 222 are both provided with a positioning portion 24 adapted to the mouth portion 14. Such arrangement not only ensures the strength of the positioning portion 24 itself, but also improves the overall strength of the lower shell 2.

[0035] In one embodiment, the positioning portion 24 is partly extended along the height direction of the third side plate 212 from the joint of the second anti-collision beam plate 211 and the third side plate 212, and partly extended along the height direction of the fourth side plate 222 from the joint of the second energy absorption plate 221 and the fourth side plate 222. The height of the positioning portion 24 is higher than the height of the third side plate 212 and the height of the fourth side plate 222.

[0036] In another embodiment, the positioning portion 24 comprises short positioning portions and long positioning portions arranged at intervals. Specifically, the short positioning portions are formed by extending upward from the end faces of the third side plate 212 and the fourth side plate 222, respectively. The long positioning portions are the same as those in the above embodiment, which will not be described in detail here.

[0037] When the upper shell 1, the lower shell 2, and the filler 3 are assembled, the positioning portion 24 of the lower shell 2 is inserted into the mouth portion 14 of the upper shell 1, so that the lower shell 2 is connected with the upper shell 1, and the filler 3 is located in the energy absorption cavity between the lower shell 2 and the upper shell 1. At the same time, the upper shell 1, the lower shell 2, and the filler 3 are welded into an integral whole by ultrasonic welding at the positions of the positioning portion 24 and the mouth portion 14.

[0038] In this embodiment, the materials of the upper shell 1 and the lower shell 2 are preferably polypropylene or polyamide, and are formed by one-piece injection molding. This choice is mainly based on the many advantages of polypropylene or polyamide, such as light weight, impact resistance, corrosion resistance, good processing performance, low cost, and good environmental protection, etc. At the same time, these characteristics enable the impact energy to be absorbed and dispersed to a certain extent when the impact beam is impacted, thereby protecting the safety of the vehicle and passengers.

[0039] At the same time, the one-piece injection molding process can achieve precise control and adjustment, ensuring that the size and quality of each upper shell 1 and lower shell 2 are consistent. During the injection molding process, parameters such as temperature, pressure, and speed can be precisely controlled, thereby reducing the likelihood of product defects. In addition, the one-piece injection molding process also improves production efficiency, making the production of the upper shell 1 and the lower shell 2 more efficient and stable.

[0040] Further, the filler 3 includes a hard segment 31 and a soft segment 32. The hard segment 31 is located at the position of the energy absorption cavity formed by the first impact beam body 11 and the second impact beam body 21. The hard segment 31 enhances the rigidity and impact resistance of this area, so as to more effectively absorb and disperse impact energy when a collision occurs. The soft segment 32 is located at the position of the energy absorption cavity formed by the first energy absorption box body 12 and the second energy absorption box body 22, which can deform more effectively and absorb impact energy, thereby further protecting the safety of the vehicle and passengers.

[0041] In this embodiment, the materials of the hard segment 31 and the soft segment 32 are preferably foamed aluminum or polyurethane, and are formed by foaming process. Foamed aluminum or polyurethane can adjust the hardness. In other embodiments, the hard segment 31 and the soft segment 32 are independently foamed and formed, and foamed aluminum and polyurethane are used in a certain proportion.

[0042] The above specific embodiments do not constitute a limitation on the protection scope of the present utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A split-type infill anti-collision beam, characterized in that, include: The upper housing has an opening on its end face; The lower housing has an upwardly extending positioning portion. The positioning part is inserted into the opening, and the lower shell is connected to the upper shell to form an energy-absorbing cavity; A filler material is disposed within the energy-absorbing cavity; the outer contour of the filler material is adapted to the energy-absorbing cavity.

2. The split-type infill anti-collision beam according to claim 1, characterized in that, The upper housing includes a first anti-collision beam body, two first energy-absorbing box bodies, and two first mounting plates; the two first energy-absorbing box bodies are disposed at both ends of the first anti-collision beam body, and the first mounting plates are connected to the first energy-absorbing box bodies.

3. The split-type infill anti-collision beam according to claim 2, characterized in that, The first anti-collision beam body includes a first anti-collision beam plate, with first side plates extending in the same direction on both sides of the first anti-collision beam plate, and a first connecting plate extending outward from the opposite side of the free ends of the two first side plates.

4. The split-type infill anti-collision beam according to claim 3, characterized in that, Each of the first energy-absorbing box bodies includes a first energy-absorbing plate, and second side plates extending in the same direction on both sides of the first energy-absorbing plate. A second connecting plate extends outward from the opposite side of the free ends of the two second side plates.

5. The split-type infill anti-collision beam according to claim 4, characterized in that, The openings are evenly distributed on the first connecting plate and the second connecting plate, respectively.

6. The split-type infill anti-collision beam according to claim 1, characterized in that, The lower housing includes a second anti-collision beam body, two second energy-absorbing box bodies, and two second mounting plates; the two second energy-absorbing box bodies are disposed at both ends of the second anti-collision beam body, and the second mounting plates are connected to the second energy-absorbing box bodies.

7. The split-type infill anti-collision beam according to claim 6, characterized in that, The second anti-collision beam body includes a second anti-collision beam plate, and third side plates extend in the same direction on both sides of the second anti-collision beam plate.

8. The split-type infill anti-collision beam according to claim 7, characterized in that, Each of the second energy-absorbing box bodies includes a second energy-absorbing plate, and a fourth side plate extends in the same direction on both sides of the second energy-absorbing plate.

9. The split-type infill anti-collision beam according to claim 8, characterized in that, The positioning parts are evenly distributed on the third side plate and the fourth side plate, respectively.

10. The split-type infill anti-collision beam according to claim 1, characterized in that, The filler includes hard segments and soft segments.

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