Energy absorption box

Abstract

The utility model provides an energy absorption box which comprises a box body and a reinforcing plate, the box body is a polygonal box, the reinforcing plate is arranged in the box body, the box body and the reinforcing plate are of an integrated structure, and a crumple groove is formed in the end, close to an anti-collision beam, of the box body. According to the energy absorption box, the box body is the polygonal box, the reinforcing plate is arranged in the box body, and therefore the energy absorption box is simple in overall structure and convenient to machine; meanwhile, the box body is designed to be of a polygonal structure, and the box body and the reinforcing plate are integrally designed, so that the strength of the energy absorption box is high, and the energy absorption effect of the energy absorption box is good; moreover, the crumple groove is formed in the end, close to the anti-collision cross beam, of the box body, so that the crumple groove can be used for inducing the front section of the energy absorption box to generate crushing deformation at the initial stage when the anti-collision cross beam transmits collision force to the energy absorption box, the utilization rate of the front section of the energy absorption box can be increased, and the overall energy absorption effect of the energy absorption box can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle parts technology, and specifically relates to an energy-absorbing box. Background Technology

[0002] The energy-absorbing box in a vehicle is an energy-absorbing structure located between the front bumper beam and the longitudinal beams of the vehicle frame. It absorbs energy during a collision, reducing injury to occupants. However, existing energy-absorbing boxes are complex in structure, while simpler ones have limited energy absorption. Therefore, designing an energy-absorbing box that is both simple in structure and provides good energy absorption has become a pressing technical problem for those skilled in the art. Utility Model Content

[0003] The purpose of this invention is to provide an energy-absorbing box to solve the aforementioned technical problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An energy-absorbing box includes a box body and a reinforcing plate. The box body is a polygonal box, and the reinforcing plate is disposed inside the box body. The box body and the reinforcing plate are an integral structure. A crumple groove is provided on one end of the box body near the anti-collision beam.

[0006] Preferably, the collapse grooves are provided on the upper and lower sides of the box body at the ends closest to the anti-collision beam.

[0007] Preferably, the collapse groove is located at 1 / 6 to 1 / 5 of the length of the box body extending in the front-back direction.

[0008] Preferably, the box is an irregular octagonal box placed vertically, and the length of the box in the left-right direction is less than its length in the up-down direction.

[0009] Preferably, the box body includes a left vertical plate, a right vertical plate, an upper horizontal plate, a lower horizontal plate, an upper left chamfered plate, a lower left chamfered plate, an upper right chamfered plate, and a lower right chamfered plate. The left vertical plate and the right vertical plate are arranged opposite each other, and the upper horizontal plate and the lower horizontal plate are arranged opposite each other. The left and right ends of the upper horizontal plate are connected to the upper ends of the left and right vertical plates respectively through the upper left chamfered plate and the upper right chamfered plate. The left and right ends of the lower horizontal plate are connected to the lower ends of the left and right vertical plates respectively through the lower left chamfered plate and the lower right chamfered plate. The left end of the reinforcing plate is connected to the left vertical plate, and the right end of the reinforcing plate is connected to the right vertical plate.

[0010] Preferably, the two ends of the reinforcing plate are connected to the middle positions of the left vertical plate and the right vertical plate, respectively.

[0011] Preferably, positioning holes are provided at the middle positions of both the upper horizontal plate and the lower horizontal plate.

[0012] Preferably, the aspect ratio of the box body is 0.7 to 0.75.

[0013] Preferably, the box body is a hexagonal box, and the reinforcing plate is provided between the upper left and right side panels of the box body, and the reinforcing plate is also provided between the lower left and right side panels of the box body.

[0014] Preferably, the collapse groove is a V-shaped groove.

[0015] The beneficial effects of this utility model are as follows:

[0016] The energy-absorbing box of this invention has a polygonal box body with a reinforcing plate disposed inside the box, resulting in a simple overall structure that is easy to manufacture. The polygonal design and integrated design of the box body and reinforcing plate enhance the box's strength, leading to better energy absorption. Furthermore, the invention incorporates a crumple zone on the box body near the impact beam. This allows the crumple zone to induce crushing deformation in the front section of the box during the initial stage of impact force transmission from the impact beam to the energy-absorbing box, thereby increasing the utilization rate of the front section and effectively improving the overall energy absorption performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below, and the specific embodiments of this utility model will be further described in detail with reference to the drawings.

[0018] Figure 1 An isometric view of the energy-absorbing box provided in an embodiment of this utility model;

[0019] Figure 2 This is a front view of the energy-absorbing box provided in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of another embodiment of the energy-absorbing box provided by this utility model.

[0021] Marked in the attached diagram:

[0022] 11. Upper horizontal board, 12. Lower horizontal board, 13. Left vertical board, 14. Right vertical board.

[0023] 15. Top left chamfer plate; 16. Top right chamfer plate; 17. Bottom left chamfer plate.

[0024] 18. Lower right chamfer plate; 19. Box body;

[0025] 21. Reinforcing plate; 31. Collapse groove; 32. Positioning hole. Detailed Implementation

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0027] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0028] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0029] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0030] like Figure 1 and Figure 2 As shown, this utility model embodiment provides an energy-absorbing box, which includes a box body 19 and a reinforcing plate 21. The box body 19 is a polygonal box, and the reinforcing plate 21 is disposed inside the box body 19. The box body 19 and the reinforcing plate 21 are an integral structure. A crumple groove 31 is provided on one end of the box body 19 near the anti-collision beam.

[0031] The energy-absorbing box provided in this embodiment has a polygonal box body 19 with a reinforcing plate 21 disposed inside the box body 19. This makes the overall structure of the energy-absorbing box relatively simple, easy to process, and can be integrally molded. Simultaneously, designing the box body 19 as a polygonal structure and the integral design of the box body 19 and the reinforcing plate 21 results in high strength for the energy-absorbing box, thus enabling better energy absorption. Furthermore, this invention places a crumple groove on the box body near the end of the anti-collision beam. This allows the crumple groove to induce crush deformation in the front section of the energy-absorbing box during the initial stage of the impact force transmission from the anti-collision beam to the energy-absorbing box, thereby improving the utilization rate of the front section of the energy-absorbing box and effectively enhancing the overall energy absorption effect of the energy-absorbing box.

[0032] Furthermore, the upper and lower sides of the box body 19 are provided with crumple grooves 31 at the ends near the anti-collision beam, so that the two crumple grooves can better induce the front section of the energy-absorbing box to crumple and absorb energy.

[0033] Preferably, the crumple zone 31 is located at 1 / 6 to 1 / 5 of the length of the box body 19 in the front-rear direction, that is, the horizontal distance between the crumple zone 31 and the front end face of the box body is 1 / 6 to 1 / 5 of the total length of the box body in the front-rear direction, so as to better utilize the front section of the energy-absorbing box for energy absorption. It can be understood that the front-rear direction in the text is the X direction in the figure, the left-right direction is the Y direction in the figure, and the up-down direction is the Z direction in the figure; the end face of the box body 19 near the anti-collision beam is the front end face of the energy-absorbing box, which is used to fit against the anti-collision beam, and the end of the box body away from the anti-collision beam is used to connect to the longitudinal beam of the vehicle frame; the front section of the energy-absorbing box is the part between the front end face of the box body and the crumple zone.

[0034] In one embodiment, the box 19 is an irregularly shaped octagonal box placed vertically. The length of the box in the left-right direction is less than the length of the box in the top-bottom direction, that is, the width of the box is less than the height of the box. This design reduces the contact area between the energy-absorbing box and the anti-collision beam in the lateral (left-right) direction, while increasing the contact area in the vertical (top-bottom) direction. This concentrates the impact force between the anti-collision beam and the longitudinal beams of the vehicle frame during a collision, thereby enhancing the energy absorption effect and ensuring full utilization of the energy-absorbing box.

[0035] Specifically, such as Figure 2 As shown, the box body 19 includes a left vertical plate 13, a right vertical plate 14, an upper horizontal plate 11, a lower horizontal plate 12, a left upper chamfer plate 15, a left lower chamfer plate 17, a right upper chamfer plate 16, and a right lower chamfer plate 18. The left vertical plate 13 and the right vertical plate 14 are arranged opposite each other from left to right, and the upper horizontal plate 11 and the lower horizontal plate 12 are arranged opposite each other from top to bottom. The left and right ends of the upper horizontal plate are connected to the upper ends of the left and right vertical plates through the left upper chamfer plate and the right upper chamfer plate, respectively. The left and right ends of the lower horizontal plate are connected to the lower ends of the left and right vertical plates through the left lower chamfer plate and the right lower chamfer plate, respectively. The left end of the reinforcing plate 21 is connected to the left vertical plate, and the right end of the reinforcing plate 21 is connected to the right vertical plate, thereby enabling the box body 19 to be an irregular octagonal box. At this point, the upper side of the box is the upper side of the upper horizontal plate, and the lower side of the box is the lower side of the lower horizontal plate; due to the design of the collapse groove, the corresponding parts of the upper and lower horizontal plates are recessed into the box.

[0036] Furthermore, the two ends of the reinforcing plate 21 are connected to the middle positions of the left vertical plate 13 and the right vertical plate 14, respectively, so that only one reinforcing plate 21 is set inside the box body 19, making the overall structure of the energy-absorbing box simple; at the same time, the box body 19 and the reinforcing plate together form a sun-shaped structure, thereby increasing the strength of the energy-absorbing box and further improving the energy absorption effect. It can be understood that the box body itself is a one-piece structure with good strength, and the box body and the reinforcing plate are also a one-piece structure, thus making the energy-absorbing box even stronger and more effective in absorbing energy.

[0037] Specifically, positioning holes 32 are provided in the middle of both the upper horizontal plate 11 and the lower horizontal plate 12 to facilitate positioning of the energy-absorbing box during installation.

[0038] Preferably, the aspect ratio of the box 19 is 0.7 to 0.75, which can better reduce the contact area between the energy-absorbing box and the anti-collision beam in the left-right direction and increase the contact area between the energy-absorbing box and the anti-collision beam in the vertical direction. Therefore, in the event of a vehicle collision, the impact force can be better concentrated between the anti-collision beam and the longitudinal beam of the vehicle frame, thereby enhancing the energy absorption effect and ensuring that the energy-absorbing box is fully utilized, further reducing the injury to the occupants during a collision. It is understood that the aspect ratio of the box is the ratio of its width to its height. The width is the horizontal distance between the left side of the left vertical plate and the right side of the right vertical plate, and the height is the vertical distance between the upper side of the upper horizontal plate and the lower side of the lower horizontal plate.

[0039] In one specific embodiment, the included angles between the upper horizontal plate 11 and the upper left chamfer plate 15, the upper horizontal plate 11 and the upper right chamfer plate 16, the lower horizontal plate 12 and the lower left chamfer plate 17, and the lower horizontal plate 12 and the lower right chamfer plate 18 are all 120°; the included angles between the left vertical plate 13 and the upper left chamfer plate 15, the left vertical plate 13 and the lower left chamfer plate 17, the right vertical plate 14 and the upper right chamfer plate 16, and the right vertical plate 14 and the lower right chamfer plate 18 are all 150°; the wall thickness of the box is 2~3mm, in the front-back direction. The extension length on the top is 200mm; the thickness of the reinforcing plate is 2~3mm, extending longitudinally (i.e., in the front-to-back direction), and the length of the reinforcing plate in the longitudinal direction is 200mm. The left and right ends of the reinforcing plate are perpendicularly connected to the left and right vertical plates, respectively; the depth of the collapse groove (i.e., the extension length in the vertical direction) is 3~5mm, and the width (i.e., the length in the horizontal direction) is 18~22mm; the lengths of the two vertical plates are equal, and the lengths of the two horizontal plates are equal. The length of each vertical plate in the vertical direction is greater than the extension length of each horizontal plate in the horizontal direction; the extension length of the box body and the reinforcing plate in the longitudinal direction are the same.

[0040] In other embodiments, the upper ends of the left vertical plate and the right vertical plate are connected by a reinforcing plate, and the lower ends of the left vertical plate and the right vertical plate are connected by a reinforcing plate, effectively increasing the number of reinforcing plates in the box body, thereby improving the strength of the energy absorption box and further enhancing the energy absorption effect of the energy absorption box.

[0041] As Figure 3 shown, in another embodiment, the box body is a hexagonal box, and the reinforcing plate 21 is provided between the left and right side plates at the upper part of the box body, and the reinforcing plate 21 is also provided between the left and right side plates at the lower part of the box body. With this solution, the box body and the two reinforcing plates together form a structure similar to a Chinese character 'Mu' (目). The box body and the two reinforcing plates are an integral structure, so that the energy absorption box composed of the box body and the two reinforcing plates not only has a simple structure, but also has a better energy absorption effect due to the presence of two reinforcing plates. In this embodiment, it is also preferable that the hexagonal box is an irregular hexagonal structure placed vertically, and the extension length of the hexagonal box in the left-right direction is less than its extension length in the up-down direction, so as to concentrate the collision force between the anti-collision beam and the vehicle frame longitudinal beam when the vehicle collides, thereby enhancing the energy absorption effect.

[0042] It can be preferred that the crush groove 31 is a V-shaped groove. The crush groove can also be an isosceles trapezoidal groove. At this time, the isosceles trapezoidal groove with a wider upper part and a narrower lower part is located on the upper side of the box body, and the isosceles trapezoidal groove with a narrower upper part and a wider lower part is located on the lower side of the box body.

[0043] Specifically, both the box body 19 and the reinforcing plate 21 are made of aluminum alloy material, and the energy absorption box is processed into an integral structure by extrusion molding. Since the energy absorption box is made of aluminum alloy material, the energy absorption box has good stiffness and light weight, which is beneficial to the lightweight of the anti-collision beam assembly and the electric vehicle, and can also effectively extend the cruising range of the electric vehicle, better meeting the development needs of the electric vehicle.

[0044] The energy absorption box of the present utility model has a simple structure, is convenient to form, and has a low manufacturing cost. It can significantly improve the energy absorption effect in simulation calculations, effectively reducing the harm to the vehicle occupants when the vehicle collides.

[0045] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. An energy-absorbing box, characterized in that, It includes a box body and a reinforcing plate. The box body is a polygonal box, and the reinforcing plate is disposed inside the box body. The box body and the reinforcing plate are an integral structure. A crumple groove is provided on one end of the box body near the anti-collision beam. The box is an irregular octagonal box placed vertically, and the length of the box in the left-right direction is less than its length in the up-down direction. The box body includes a left vertical plate, a right vertical plate, an upper horizontal plate, a lower horizontal plate, an upper left chamfered plate, a lower left chamfered plate, an upper right chamfered plate, and a lower right chamfered plate. The left vertical plate and the right vertical plate are arranged opposite each other, and the upper horizontal plate and the lower horizontal plate are arranged opposite each other. The left and right ends of the upper horizontal plate are connected to the upper ends of the left and right vertical plates through the upper left chamfered plate and the upper right chamfered plate, respectively. The left and right ends of the lower horizontal plate are connected to the lower ends of the left and right vertical plates through the lower left chamfered plate and the lower right chamfered plate, respectively. The left end of the reinforcing plate is connected to the left vertical plate, and the right end of the reinforcing plate is connected to the right vertical plate.

2. The energy-absorbing box according to claim 1, characterized in that, The upper and lower sides of the box body are provided with the crumple grooves at the ends near the anti-collision beam.

3. The energy-absorbing box according to claim 1, characterized in that, The collapse groove is located at 1 / 6 to 1 / 5 of the length of the box body extending in the front-back direction.

4. The energy-absorbing box according to claim 1, characterized in that, The two ends of the reinforcing plate are respectively connected to the middle positions of the left vertical plate and the right vertical plate.

5. The energy-absorbing box according to claim 1, characterized in that, Positioning holes are provided at the middle positions of both the upper and lower horizontal plates.

6. The energy-absorbing box according to claim 1, characterized in that, The aspect ratio of the box is 0.7 to 0.

75.

7. The energy-absorbing box according to any one of claims 1 to 6, characterized in that, The collapse groove is a V-shaped groove.

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