Anti-collision beam structure, automobile body structure and automobile

Abstract

The utility model discloses an anti-collision beam structure, an automobile body structure and an automobile, and the anti-collision beam structure comprises a cross beam extending in an arc shape; the two ends of the cross beam are both connected with the energy absorption boxes, all the energy absorption boxes are located on one side of the arc-shaped circle center of the cross beam, each energy absorption box comprises an energy absorption column, one end of each energy absorption column is connected with the cross beam, and the other end of each energy absorption box is used for being connected with a vehicle body structure. The energy absorption box is processed by adopting a roll forming process; the reinforcing assembly comprises a first reinforcing plate, and the first reinforcing plate is connected to the side, away from the energy absorption box, of the cross beam. According to the embodiment of the invention, the bending resistance of the cross beam can be effectively improved, and the collision requirements of various vehicle types can be met; meanwhile, the energy absorption columns in the energy absorption box are manufactured through the rolling forming technology, the shape and size of the energy absorption columns are convenient to modify, the mold opening cost of the energy absorption columns can be reduced, and the modifying step of the energy absorption box can be simplified.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and in particular to a bumper beam structure, a vehicle body structure, and an automobile. Background Art

[0002] The cross-section and material of the bumper beam are relatively fixed, so that the bending resistance of the cross beam is fixed. However, different vehicle models have different requirements for the bending resistance of the bumper beam, and a single bumper beam cannot meet the requirements for the difference in collision energy of various vehicle models. At the same time, the energy absorption box is usually processed by stamping. However, the stamping die is expensive and the shape cannot be changed, so that the modification cost of the energy absorption box is relatively high. Slight modification of the energy absorption box requires die modification, which is troublesome and time-consuming. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present application provides a bumper beam structure, a vehicle body structure, and an automobile, which can effectively improve the bending resistance of the bumper beam structure and at the same time effectively reduce the manufacturing cost.

[0004] The bumper beam structure according to an embodiment of the present application on the one hand includes:

[0005] A cross beam extending in an arc;

[0006] An energy absorption box, both ends of the cross beam are connected with the energy absorption box, and all the energy absorption boxes are located on one side of the arc center of the cross beam. The energy absorption box includes an energy absorption column. One end of the energy absorption column is connected to the cross beam, and the other end of the energy absorption box is used to be connected to the vehicle body structure. Among them, the energy absorption column is processed by a roll forming process;

[0007] A strengthening component, including a first strengthening plate, and the first strengthening plate is connected to the side of the cross beam away from the energy absorption box.

[0008] Further, the cross beam includes an integrated first part and a second part. The first part is annularly arranged and encloses a first cavity. One end of the second part is connected to one end of the first part, and the other end of the second part penetrates into the first cavity and is connected to the cavity wall of the first cavity. The other end of the first part is connected to the first part or the second part.

[0009] Further, the first part is provided with a bent area that is recessed inward.

[0010] Further, the cross-section of the cross beam as a whole presents a "day" shape.

[0011] Further, the contour of the cross beam is processed by roll forming.

[0012] Furthermore, the reinforcement assembly also includes a second reinforcement plate, the energy absorbing column is provided with a first connecting hole, the second reinforcement plate is provided with a second connecting hole, and the first connecting hole and the second connecting hole are both penetrated by fastening bolts to fix the second reinforcement plate to the energy absorbing column.

[0013] Furthermore, the energy absorbing column has a crushing area, and the crushing area is provided with a hole.

[0014] Furthermore, the energy absorbing box comprises at least two energy absorbing columns arranged at intervals, wherein at least two of the energy absorbing columns are arranged in parallel.

[0015] The vehicle body structure of another embodiment of the present application includes the anti-collision beam structure as described above.

[0016] A car according to another embodiment of the present application includes the anti-collision beam structure as described above.

[0017] According to the anti-collision beam structure, vehicle body structure and automobile of the embodiment of the present application, at least the following beneficial effects are achieved: in the embodiment of the present application, the cross beam extends in an arc shape, and the energy absorption box is located on one side of the arc center of the cross beam, and the energy absorption box serves as a support for the cross beam, so that the bending resistance of the cross beam can be effectively improved, which helps to meet the collision requirements of various types of vehicles; at the same time, the energy absorption column in the energy absorption box is made by a roll forming process, which is convenient for modifying the shape and size of the energy absorption column, and can also reduce the mold opening cost of the energy absorption column, and can also simplify the modification steps of the energy absorption box. In addition, a first reinforcing plate is provided on the cross beam, which can improve the bending resistance of the cross beam; the first reinforcing plate is provided on the side of the cross beam away from the energy absorption box. When a collision occurs, the first reinforcing plate can preferentially contact the collision object and disperse the external force to the cross beam, which can further improve the bending resistance of the anti-collision beam structure.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 A schematic structural diagram of an anti-collision beam structure according to an embodiment of the present application;

[0021] Figure 2 A schematic diagram of a top view of an anti-collision beam structure according to an embodiment of the present application;

[0022] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the AA part;

[0023] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of the middle BB part;

[0024] Figure 5 It is a schematic structural diagram of an energy absorption box and a reinforcement component in an anti-collision beam structure of an embodiment of the present application.

[0025] Reference numerals:

[0026] 100, beam; 110, mounting hole; 120, first part; 121, first cavity; 122, bending area; 130, second part;

[0027] 200, energy absorption box; 210, energy absorption column; 211, first connection hole; 220, first connection plate; 230, second connection plate;

[0028] 310, first reinforcing plate; 320, second reinforcing plate; 321, second reinforcing plate a; 322, second reinforcing plate b; 3221, second connecting hole. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0033] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] In the related art, the cross section and material of the anti-collision beam are relatively fixed, so that the bending resistance of the cross beam 100 is fixed. However, different models have different requirements for the bending resistance of the anti-collision beam, and one anti-collision beam cannot meet the different collision energy requirements of various models. At the same time, the energy absorption box 200 is usually processed by stamping technology, but the stamping mold is expensive and the shape cannot be changed, which makes the modification cost of the energy absorption box 200 high. A slight modification of the energy absorption box 200 requires a mold change, which is troublesome and time-consuming.

[0035] In view of this, the embodiments of the present application provide an anti-collision beam structure, a vehicle body structure and a car to solve at least one of the problems of the prior art.

[0036] See also Figure 1 and Figure 2 In one aspect, an embodiment of the present application discloses an anti-collision beam structure, including a cross beam 100, an energy absorption box 200 and a reinforcement component.

[0037] Specifically, the cross beam 100 extends in an arc shape, and the center of the arc is located on a side of the cross beam 100 where the energy absorption box 200 is provided; both ends of the cross beam 100 are connected to the energy absorption box 200, and all the energy absorption boxes 200 are located on one side of the arc center of the cross beam 100, and the energy absorption box 200 includes an energy absorption column 210, one end of the energy absorption column 210 is connected to the cross beam 100, and the other end of the energy absorption box 200 is used to be connected to the vehicle body structure, wherein the energy absorption box 200 is processed by a roll forming process; the reinforcement component includes a first reinforcement plate 310, and the first reinforcement plate 310 is connected to a side of the cross beam 100 away from the energy absorption box 200.

[0038] It is worth to understand that in some other possible implementations, the first reinforcing plate 310 may also be arranged on one side of the arc center of the beam 100 , which can also improve the bending resistance of the beam 100 .

[0039] In the embodiment of the present application, the arc center of the beam 100 refers to the center of the arc of the beam 100. It is worth noting that the energy absorption box 200 is located on one side of the arc center of the beam 100, which does not mean that the setting position of the energy absorption box 200 is the same as the arc center.

[0040] In the embodiment of the present application, the cross beam 100 extends in an arc shape, and the energy absorption box 200 is located on one side of the arc center of the cross beam 100. The energy absorption box 200 can provide support for the cross beam 100, so that the bending resistance of the cross beam 100 can be effectively improved, which helps to meet the collision requirements of various types of vehicles; at the same time, the energy absorption column 210 in the energy absorption box 200 is made by a roll forming process, which is convenient for modifying the shape of the energy absorption column 210, and can also reduce the mold opening cost of the energy absorption column 210, and can also simplify the modification steps of the energy absorption box 200. In addition, a first reinforcing plate 310 is provided on the cross beam 100, which can improve the bending resistance of the cross beam 100; the first reinforcing plate is provided on the side of the cross beam 100 away from the energy absorption box 200. When a collision occurs, the first reinforcing plate 310 can preferentially disperse the external force to the cross beam 100, which can further improve the bending resistance of the anti-collision beam structure.

[0041] The cross-sectional shape and structure of the cross beam 100 can be designed accordingly according to the requirements of the bending resistance and strength of the cross beam 100 in a vehicle collision.

[0042] In some possible implementations, see Figure 3 The cross beam 100 includes an integrated first portion 120 and a second portion 130. The first portion 120 is arranged in an annular shape and encloses a first cavity 121. One end of the second portion 130 is connected to one end of the first portion 120. The other end of the second portion 130 is passed through the first cavity 121 and connected to the cavity wall of the first cavity 121. The other end of the first portion 120 is connected to the first portion 120 or the second portion 130. In other words, the second portion 130 divides the first cavity 121 enclosed by the first portion 120 into two cavities. Since the second portion 130 is connected to the cavity enclosed by the first portion 120, the structural strength of the middle portion of the annular first portion 120 can be strengthened, which is conducive to improving the bending resistance of the cross beam 100.

[0043] In some embodiments of the present application, see Figure 3 The first portion 120 is provided with an inwardly recessed bending region 122. Thus, the inwardly recessed bending region 122 can further strengthen the structural strength of the beam 100, and help improve the bending resistance of the beam 100.

[0044] In some embodiments of this application, please continue to refer to Figure 3 The cross section of the cross beam 100 is in the shape of a Japanese character. In this way, the structural strength of the middle part of the cross beam 100 can be reinforced, which is beneficial to improving the bending strength of the cross beam 100.

[0045] In some embodiments of the present application, the profile of the crossbeam 100 is formed by roll forming, so that the length of the crossbeam 100 can be easily adjusted, avoiding the problem of increased costs caused by repeated mold opening.

[0046] In one possible implementation, see Figures 1 to 3 As shown, the crossbeam 100 includes an integrated first part 120 and a second part 130, the first part 120 is arranged in an annular shape and encloses a first cavity 121, one end of the second part 130 is connected to one end of the first part 120, the other end of the second part 130 is passed through the first cavity 121 and connected to the cavity wall of the first cavity 121, and the other end of the first part 120 is connected to the first part 120 or the second part 130. Among them, the side where the upper end and the lower end of the first part 120 are connected is arranged on the inner side of the crossbeam 100, that is, it is arranged on the side of the crossbeam 100 close to the energy absorption box 200. In this way, the situation of failure of the connection between the upper end and the lower end of the first part 120 can be reduced.

[0047] Furthermore, the first portion 120 includes a bent section and a vertical section, the bent section is parallel to the inner wall of the first cavity 121 away from the energy absorbing box 200, and the vertical section is vertically arranged to the inner wall of the first cavity 121. In this way, the bent section of the second portion 130 can be overlapped with the first portion 120 to increase the force bearing capacity of the beam 100; the vertical section can support the bent section and the first portion 120 to strengthen the structural strength and bending resistance of the beam 100, which helps to improve the bending resistance.

[0048] Furthermore, one end of the first part 120 is connected to the end of the vertical section, and the other end of the first part 120 is bent and connected to the vertical section in parallel. In this way, the bending resistance of the beam 100 can be further improved.

[0049] Furthermore, one bent end of the first portion 120 is disposed toward the bent section of the second portion 130 , so as to further improve the bending resistance of the beam 100 .

[0050] In some embodiments of the present application, the reinforcement assembly also includes a second reinforcement plate 320, the energy absorbing column 210 is provided with a first connecting hole 211, and the second reinforcement plate 320 is provided with a second connecting hole 3221. The first connecting hole 211 and the second connecting hole 3221 are both provided with fastening bolts to fix the second reinforcement plate 320 to the energy absorbing column 210.

[0051] In some other embodiments, the second reinforcing plate 320 may also be fixedly connected to the energy absorbing column 210 by welding.

[0052] In some embodiments of the present application, the energy absorbing column 210 has a crushing area, and the crushing area is provided with a hole. When a vehicle collides, the crushing area in the energy absorbing column 210 of the anti-collision beam structure can effectively collapse, thereby helping to protect other structures of the vehicle. The number of the holes can be one or more, which is not limited here.

[0053] In some embodiments of the present application, see Figure 4 The cross-sectional profile of the energy absorbing column 210 is rectangular. The energy absorbing column 210 is formed by a roller forming process.

[0054] Of course, the cross-sectional profile of the energy absorbing column 210 may also be set to other cross-sectional shapes as required. For example, the cross-sectional profile of the energy absorbing column 210 may be set to a circle, a polygon, or the like.

[0055] In some embodiments of the present application, the energy absorbing box 200 includes at least two energy absorbing columns 210 arranged at intervals, wherein at least two energy absorbing columns 210 are arranged in parallel.

[0056] In one possible implementation, see Figure 1 and Figure 3 The energy absorbing column 210 includes a first connecting plate 220 and two energy absorbing columns 210 spaced apart and arranged in parallel. One end of each of the two energy absorbing columns 210 is connected to the first connecting plate 220, and the other end of each of the two energy absorbing columns 210 is fixedly connected to different positions of the cross beam 100. Correspondingly, the reinforcement assembly includes a second reinforcement plate a321 and a second reinforcement plate b322. The second reinforcement plate a321 is connected to one of the energy absorbing columns 210 by bolts. The second reinforcement plate b322 is provided with a second connection hole 3221. The second reinforcement plate b322 is connected to the other energy absorbing column 210 by the second connection hole 3221 and the bolts.

[0057] Furthermore, reinforcing plates are provided on both the upper and lower sides of the energy absorbing column 210. In this way, the structural strength of the energy absorbing column 210 can be further improved.

[0058] In a possible embodiment, the first reinforcing plate 310 or the second reinforcing plate 320 is made by a roll forming process, which helps to reduce the equipment cost of producing the first reinforcing plate 310 and the second reinforcing plate 320, and also facilitates the modification and adjustment of the structural form of the first reinforcing plate 310 and the second reinforcing plate 320.

[0059] In one embodiment of the present application, see Figure 1 and Figure 2 The cross beam is provided with a mounting hole 110 that passes through the upper and lower sides thereof, and the first reinforcing plate 310 is matched with the mounting hole 110 by connecting bolts to mount the first reinforcing plate 310 on the cross beam 100. The mounting hole 110 passes through the upper and lower sides of the cross beam 100, so that the side of the anti-collision beam structure used for collision can remain intact, thereby ensuring the strength of the anti-collision beam structure.

[0060] In some embodiments of the present application, see Figure 1 and Figure 5The energy absorption box 200 includes a first connecting plate 220, a second connecting plate 230 and an energy absorption column 210. The first connecting plate 220 and the second connecting plate 230 are arranged at intervals, and the energy absorption column 210 is connected between the first connecting plate 220 and the second connecting plate 230. The second connecting plate is fixedly connected to the cross beam 100, and the first connecting plate is used to be fixedly connected to the vehicle body structure.

[0061] In the embodiment of the present application, the cross beam 100 and the energy absorption box 200 are improved and optimized to improve the bending resistance of the cross beam 100 and the energy absorption box 200, so that the anti-collision beam structure can absorb more energy during a collision, which helps to improve the safety performance of the vehicle body structure or the vehicle.

[0062] On the other hand, an embodiment of the present application discloses a vehicle body structure, including the anti-collision beam structure as described above, which has all the technical effects of the aforementioned anti-collision beam structure and will not be repeated here.

[0063] In another aspect, an embodiment of the present application discloses a car, including the anti-collision beam structure as described above, having all the technical effects of the aforementioned anti-collision beam structure, which will not be repeated here.

[0064] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. An anti-collision beam structure, characterized in that: Comprising: An arc-extending cross beam; Energy-absorbing boxes, both ends of the cross beam are connected with the energy-absorbing boxes, and all the energy-absorbing boxes are located on one side of the arc center of the cross beam. The energy-absorbing box includes an energy-absorbing column, one end of the energy-absorbing column is connected with the cross beam, and the other end of the energy-absorbing box is used for connecting with the vehicle body structure. Wherein, the energy-absorbing column is processed by a roll forming process; A strengthening component, including a first strengthening plate, the first strengthening plate is connected to the side of the cross beam away from the energy-absorbing box.

2. The anti-collision beam structure according to claim 1, characterized in that: The cross beam includes an integrated first part and a second part. The first part is annularly arranged and encloses a first cavity. One end of the second part is connected to one end of the first part, and the other end of the second part penetrates into the first cavity and is connected to the cavity wall of the first cavity. The other end of the first part is connected to the first part or the second part.

3. The anti-collision beam structure according to claim 2, characterized in that: The first part is provided with an inwardly recessed bending area.

4. The anti-collision beam structure according to claim 2, characterized in that: The cross section of the cross beam as a whole presents a shape like the Chinese character 'Ri'.

5. The anti-collision beam structure according to any one of claims 1 to 4, characterized in that: The contour of the cross beam is processed by roll forming.

6. The anti-collision beam structure according to claim 1, characterized in that: The strengthening component further includes a second strengthening plate. The energy-absorbing column is provided with a first connection hole, and the second strengthening plate is provided with a second connection hole. The first connection hole and the second connection hole are simultaneously penetrated by a fastening bolt to fixedly connect the second strengthening plate with the energy-absorbing column.

7. The anti-collision beam structure according to claim 1, characterized in that: The energy-absorbing column has a crushing area, and the crushing area is provided with perforations.

8. The anti-collision beam structure according to claim 1, characterized in that: The energy-absorbing box includes at least two spaced energy-absorbing columns, and at least two of the energy-absorbing columns are arranged in parallel.

9. A vehicle body structure, characterized in that: Including the anti-collision beam structure according to any one of claims 1 to 8.

10. An automobile, characterized in that: Including the anti-collision beam structure according to any one of claims 1 to 8.

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