Split energy absorption box

Abstract

The utility model discloses a kind of split energy-absorbing box in the field of energy-absorbing box, including upper connecting plate, first energy-absorbing rib, second energy-absorbing rib, third energy-absorbing rib, fourth energy-absorbing rib and lower connecting plate, upper connecting plate and lower connecting plate are parallel structure, first energy-absorbing rib and second energy-absorbing rib are perpendicular structure, second energy-absorbing rib and third energy-absorbing rib are perpendicular structure, third energy-absorbing rib and fourth energy-absorbing rib are perpendicular structure, the both sides of upper connecting plate are respectively provided with upper connecting lug and upper connecting groove, the both sides of lower connecting plate are respectively provided with lower connecting lug and lower connecting groove, when multiple energy-absorbing box monomers are combined into energy-absorbing box whole according to the length of use, upper connecting groove and upper connecting lug are pasted, lower connecting lug and lower connecting groove are pasted, the monomer of the utility model has no cavity structure, it is convenient for processing, cost is lower, the length of energy-absorbing box can be freely combined according to the size of vehicle, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of energy-absorbing boxes, specifically a split-type energy-absorbing box. Background Technology

[0002] Energy-absorbing boxes are key safety components in automotive bumper systems, located between the anti-collision beam and the vehicle's longitudinal beams. They absorb collision energy through controlled crumple zone deformation, thereby reducing the risk of injury to occupants and damage to the vehicle's structure. As a vehicle's "safety shield," the design and materials of energy-absorbing boxes directly affect passive safety performance, making them an indispensable collision protection device for modern vehicles.

[0003] Existing energy-absorbing boxes are mainly made of aluminum alloy and are mostly formed by extrusion. To achieve good energy absorption, the energy-absorbing box has multiple cavities and a complex structure, making it difficult to form when extruding aluminum alloy. Moreover, the energy-absorbing boxes of some large heavy trucks are large in size, requiring ultra-high tonnage extrusion presses to handle the extrusion work, which is inconvenient for production. Therefore, those skilled in the art have provided a split-type energy-absorbing box to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a split-type energy-absorbing box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A split-type energy-absorbing box includes an upper connecting plate, a first energy-absorbing rib, a second energy-absorbing rib, a third energy-absorbing rib, a fourth energy-absorbing rib, and a lower connecting plate. The individual units of this energy-absorbing box are made of 6061 aluminum alloy and are formed by hot forward extrusion using a flat mold. The upper and lower connecting plates are parallel structures. The first and second energy-absorbing ribs are perpendicular, as are the second and third energy-absorbing ribs, and the third and fourth energy-absorbing ribs. The first and third energy-absorbing ribs are parallel structures, as are the second and fourth energy-absorbing ribs. The upper connecting plate has an upper connecting protrusion and an upper connecting groove on each side, and the lower connecting plate has a lower connecting protrusion and a lower connecting groove on each side. When multiple individual energy-absorbing box units are combined to form a complete energy-absorbing box according to their length, the upper connecting groove fits into the upper connecting protrusion, and the lower connecting protrusion fits into the lower connecting groove. The joints of the individual energy-absorbing box units are welded using friction stir welding.

[0007] As a further embodiment of this utility model: the acute angle between the first energy-absorbing rib and the upper connecting plate is the upper connecting angle, which is 45°; the acute angle between the fourth energy-absorbing rib and the lower connecting plate is the lower connecting angle, which is 45°.

[0008] As a further embodiment of this utility model: the length of the upper connecting plate and the lower connecting plate is 340±0.3mm, the width of the upper connecting plate and the lower connecting plate is 120±0.3mm, and the vertical distance between the upper connecting plate and the lower connecting plate is 410±0.03mm.

[0009] As a further embodiment of this utility model: the upper connecting protrusion, the upper connecting slot, the lower connecting protrusion, and the lower connecting slot have the same dimensions, all being 30±0.03mm in length and 6±0.03mm in height.

[0010] As a further improvement of this utility model: the thickness of the first energy-absorbing rib, the second energy-absorbing rib, the third energy-absorbing rib, and the fourth energy-absorbing rib is all 3.5±0.02mm.

[0011] As a further improvement of this utility model: the welded energy-absorbing box has optical holes with a diameter of Φ17±0.2mm at its four corners. The four optical holes on the upper connecting plate are upper mounting through holes, and the four optical holes on the lower connecting plate are lower mounting through holes. The upper connecting plate is connected to the car anti-collision beam by bolts, and the lower connecting plate is connected to the car bracket by bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, since the energy-absorbing box unit does not have a cavity structure, it can be formed by hot forward extrusion using a flat mold, which has high processing efficiency and good economy. In addition, multiple energy-absorbing box units are welded into an energy-absorbing box as a whole by friction stir welding. The upper connecting slot fits with the upper connecting protrusion, and the lower connecting protrusion fits with the lower connecting slot. Two connected energy-absorbing box units can be combined to form a cavity, which ensures the crumple energy absorption effect during collision, has good safety, and can be used to produce energy-absorbing boxes for large trucks, with a wide range of applications.

[0014] 2. In this utility model, through holes are installed at the four corners of the upper connecting plate of the assembled energy-absorbing box and at the four corners of the lower connecting plate of the assembled energy-absorbing box. Bolts are used to fix the energy-absorbing box to the car frame and the anti-collision beam. In the event of a collision, the damaged energy-absorbing box can be quickly replaced, avoiding the need for repair of the entire vehicle frame, and making it convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the split structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the combined structure of this utility model;

[0017] Figure 3This is a cross-sectional structural diagram of the present invention;

[0018] Figure 4 This utility model Figure 2 A magnified view of the connection between the upper connecting protrusion and the upper connecting slot.

[0019] In the diagram: 1. Upper connecting plate; 2. Upper connecting protrusion; 3. Upper connecting slot; 4. Upper connecting corner; 5. First energy-absorbing rib; 6. Second energy-absorbing rib; 7. Third energy-absorbing rib; 8. Fourth energy-absorbing rib; 9. Lower connecting corner; 10. Lower connecting plate; 11. Lower connecting protrusion; 12. Lower connecting slot; 13. Upper mounting through hole; 14. Lower mounting through hole. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 In this embodiment of the utility model, a split-type energy-absorbing box includes an upper connecting plate 1, a first energy-absorbing rib 5, a second energy-absorbing rib 6, a third energy-absorbing rib 7, a fourth energy-absorbing rib 8, and a lower connecting plate 10. The individual components of this energy-absorbing box are made of 6061 aluminum alloy and are formed by hot forward extrusion using a flat mold. This process is simple and has high production efficiency. The upper connecting plate 1 and the lower connecting plate 10 are parallel. The first energy-absorbing rib 5 and the second energy-absorbing rib 6 are perpendicular. The second energy-absorbing rib 6 and the third energy-absorbing rib 7 are perpendicular. The third energy-absorbing rib 7 and the fourth energy-absorbing rib 8 are perpendicular. The first energy-absorbing rib 5 and the third energy-absorbing rib 7 are parallel. The second energy-absorbing rib 6 and the fourth energy-absorbing rib 8 are parallel. The energy-absorbing rib 8 has a parallel structure. The upper connecting plate 1 has an upper connecting protrusion 2 and an upper connecting groove 3 on both sides, and the lower connecting plate 10 has a lower connecting protrusion 11 and a lower connecting groove 12 on both sides. When multiple energy-absorbing box units are combined into an energy-absorbing box as a whole according to the length used, the upper connecting groove 3 fits with the upper connecting protrusion 2, and the lower connecting protrusion 11 fits with the lower connecting groove 12. When the energy-absorbing box units are combined and connected, the joint is welded by friction stir welding. The structure of the energy-absorbing box unit is simple, easy to process, and economical. The combined energy-absorbing box as a whole uses the connected energy-absorbing box units to form a cavity, ensuring energy absorption performance, good collapse energy absorption effect, and high safety factor.

[0022] Among them, the acute angle between the first energy-absorbing rib 5 and the upper connecting plate 1 is the upper connecting angle 4, which is 45°; the acute angle between the fourth energy-absorbing rib 8 and the lower connecting plate 10 is the lower connecting angle 9, which is 45°.

[0023] The length of the upper connecting plate 1 and the lower connecting plate 10 is 340±0.3mm, the width of the upper connecting plate 1 and the lower connecting plate 10 is 120±0.3mm, and the vertical distance between the upper connecting plate 1 and the lower connecting plate 10 is 410±0.03mm.

[0024] Among them, the upper connecting protrusion 2, the upper connecting slot 3, the lower connecting protrusion 11, and the lower connecting slot 12 have the same dimensions, all of which are 30±0.03mm in length and 6±0.03mm in height;

[0025] The thickness of the first energy-absorbing rib 5, the second energy-absorbing rib 6, the third energy-absorbing rib 7, and the fourth energy-absorbing rib 8 is 3.5±0.02mm.

[0026] The welded energy-absorbing box has Φ17±0.2mm light holes at its four corners. The four light holes on the upper connecting plate 1 are upper mounting through holes 13, and the four light holes on the lower connecting plate 10 are lower mounting through holes 14. The upper connecting plate 1 is connected to the car anti-collision beam by bolts, and the lower connecting plate 10 is connected to the car bracket by bolts. The bolt installation facilitates the replacement of the energy-absorbing box. After a collision, the energy-absorbing box can be replaced separately, avoiding the need for repair of the entire vehicle frame.

[0027] The working principle of this utility model is as follows: According to the required size of the energy-absorbing box for the vehicle, multiple energy-absorbing box units are combined. The upper connecting groove 3 of each pair of connected energy-absorbing box units is fitted with the upper connecting protrusion 2, and the lower connecting protrusion 11 is fitted with the lower connecting groove 12. The energy-absorbing box units are welded together using friction stir welding to form an overall energy-absorbing box. The first energy-absorbing rib 5, the second energy-absorbing rib 6, the third energy-absorbing rib 7, and the fourth energy-absorbing rib 8 on the two connected energy-absorbing box units together form a cavity. When a collision occurs, the cavity collapses to absorb energy, protecting the vehicle's safety. After welding, holes are drilled at the four corners of the upper connecting plate 1 of the overall energy-absorbing box to form upper mounting through holes 13, and holes are drilled at the four corners of the lower connecting plate 10 of the overall energy-absorbing box to form lower mounting through holes 14. The upper connecting plate 1 is connected to the car's anti-collision beam using bolts, and the lower connecting plate 10 is connected to the car's bracket. After a collision, it is convenient to replace the damaged energy-absorbing box, avoiding the need for vehicle bracket repair, making it more convenient to use.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A split-type energy-absorbing box, comprising an upper connecting plate (1), a first energy-absorbing rib (5), a second energy-absorbing rib (6), a third energy-absorbing rib (7), a fourth energy-absorbing rib (8), and a lower connecting plate (10), characterized in that: The single unit of this energy-absorbing box is made of 6061 aluminum alloy and is formed by hot forward extrusion using a flat mold. The upper connecting plate (1) and the lower connecting plate (10) are parallel structures. The first energy-absorbing rib (5) and the second energy-absorbing rib (6) are perpendicular structures. The second energy-absorbing rib (6) and the third energy-absorbing rib (7) are perpendicular structures. The third energy-absorbing rib (7) and the fourth energy-absorbing rib (8) are perpendicular structures. The first energy-absorbing rib (5) and the third energy-absorbing rib (7) are parallel structures. The second energy-absorbing rib (6) and the fourth energy-absorbing rib... (8) is a parallel structure. The upper connecting plate (1) is provided with an upper connecting protrusion (2) and an upper connecting slot (3) on both sides. The lower connecting plate (10) is provided with a lower connecting protrusion (11) and a lower connecting slot (12) on both sides. When multiple energy-absorbing box units are combined into an energy-absorbing box as a whole according to the length used, the upper connecting slot (3) is in contact with the upper connecting protrusion (2), and the lower connecting protrusion (11) is in contact with the lower connecting slot (12). When the energy-absorbing box units are combined and connected, the joint position is welded by friction stir welding.

2. The split-type energy-absorbing box according to claim 1, characterized in that: The acute angle between the first energy-absorbing rib (5) and the upper connecting plate (1) is the upper connecting angle (4), which is 45°. The acute angle between the fourth energy-absorbing rib (8) and the lower connecting plate (10) is the lower connecting angle (9), which is 45°.

3. A split-type energy-absorbing box according to claim 1, characterized in that: The length of the upper connecting plate (1) and the lower connecting plate (10) is 340±0.3mm, the width of the upper connecting plate (1) and the lower connecting plate (10) is 120±0.3mm, and the vertical distance between the upper connecting plate (1) and the lower connecting plate (10) is 410±0.03mm.

4. A split-type energy-absorbing box according to claim 1, characterized in that: The upper connecting protrusion (2), the upper connecting slot (3), the lower connecting protrusion (11), and the lower connecting slot (12) have the same dimensions, all being 30±0.03mm in length and 6±0.03mm in height.

5. A split-type energy-absorbing box according to claim 1, characterized in that: The thickness of the first energy-absorbing rib (5), the second energy-absorbing rib (6), the third energy-absorbing rib (7) and the fourth energy-absorbing rib (8) is 3.5±0.02mm.

6. A split-type energy-absorbing box according to claim 1, characterized in that: The welded energy-absorbing box has Φ17±0.2mm light holes at its four corners. The four light holes on the upper connecting plate (1) are upper mounting through holes (13), and the four light holes on the lower connecting plate (10) are lower mounting through holes (14). The upper connecting plate (1) is connected to the car anti-collision beam by bolts, and the lower connecting plate (10) is connected to the car bracket by bolts.

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