An energy absorption box mounting structure

Abstract

The application provides an energy absorption box mounting structure, which comprises a crash component and a side beam component; a main energy absorption component and a secondary energy absorption component are fixedly arranged between the crash component and the side beam component; the mounting height of the secondary energy absorption component is arranged in a staggered mode with the mounting height of the main energy absorption component; the surface of the secondary energy absorption component facing the crash component is in complete abutment with the crash component, and the surface of the secondary energy absorption component facing the side beam component is in complete abutment with the side beam component. The application changes the force transmission path through the main energy absorption component and the secondary energy absorption component, so as to reduce the imbalance of the collision force transmission, and then more adapt to the side beam component connected with the energy absorption box component, so that the collision force can be effectively transmitted to the side beam component.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing, and in particular to an energy-absorbing box mounting structure. Background Technology

[0002] The energy-absorbing box is an important energy-absorbing device in a car bumper system. It is installed between the anti-collision beam and the upper side beam of the front wheel arch, serving as a low-speed safety protection system. When an object undergoes a severe collision, it undergoes plastic deformation, primarily manifesting in three ways: complete deformation, warping deformation, and wrinkling deformation. Among these, wrinkling deformation is an ideal energy absorption method. As a thin-walled metal component, the energy-absorbing box is prone to wrinkling deformation during a collision. This perfectly fulfills the purpose of effectively absorbing collision energy during low-speed collisions and minimizing damage to the vehicle's longitudinal beams.

[0003] like Figures 1-2 As shown, in the existing technology, the main energy-absorbing box and the auxiliary energy-absorbing box are at the same height, both fixed between the anti-collision beam and the upper side beam of the front wheel arch, and the installation height is at a relatively low position. Currently, the front overhang of electric vehicles is relatively short, which exacerbates the bending tendency of the upper side beam of the front wheel arch. The energy-absorbing box, located at a low position, cannot effectively transfer the collision force to the bending point. Therefore, the existing energy-absorbing box force transmission path is not suitable for the aggravated bending of the upper side beam of the front wheel arch.

[0004] As can be seen from the above, when a collision occurs, the imbalance in the transmission of collision load forces will increase the damage to the upper side beam of the wheel arch, thereby increasing the collision damage to the car itself and may even threaten the safety of the occupants.

[0005] In view of this, the present invention is hereby proposed. Summary of the Invention

[0006] This invention provides an energy-absorbing box installation structure to solve the technical problem of increased bending of the side beam caused by the mismatch of the force transmission path of existing energy-absorbing boxes.

[0007] An energy-absorbing box mounting structure includes a collision protection component and a side beam component;

[0008] A main energy-absorbing component and a secondary energy-absorbing component are fixedly installed between the anti-collision component and the side beam component, and the installation height of the secondary energy-absorbing component is offset from the installation height of the main energy-absorbing component.

[0009] The side of the secondary energy-absorbing component facing the anti-collision component is in complete contact with the anti-collision component, and the side of the secondary energy-absorbing component facing the side beam component is in complete contact with the side beam component.

[0010] During installation, the main energy-absorbing component and the auxiliary energy-absorbing component are installed at staggered heights. When the anti-collision component is impacted, the impact force is transmitted through the main and auxiliary energy-absorbing components at different heights. The energy-absorbing component at the higher position transmits the impact force to a higher position and then to the side beam component, while the energy-absorbing component at the lower position transmits the impact force to a lower position and then to the side beam component. As can be seen from the above, the impact force is dispersed and transmitted through energy-absorbing components at different heights, thereby changing the force transmission path. The changed force transmission path can greatly reduce the imbalance of impact force transmission, thus making it more suitable for the side beam component connected to the energy-absorbing box component, so that the impact force can be effectively transmitted to the side beam component and prevent the concentration of impact force.

[0011] As can be seen from the above, the improved installation structure can reduce damage to the side beam assembly, thereby mitigating collision damage to the vehicle and further ensuring the safety of the occupants.

[0012] Preferably, the side beam assembly includes a side mounting plate, a rear side beam, and a rear longitudinal beam, wherein the rear side beam and the rear longitudinal beam are respectively disposed on the mounting plate;

[0013] The main energy-absorbing component is fixedly disposed between the mounting plate and the anti-collision component, and the side of the secondary energy-absorbing component facing the mounting plate is in complete contact with the mounting plate.

[0014] The main energy-absorbing component and the auxiliary energy-absorbing component, which are fixedly installed on the mounting plate, can transfer the impact force transmitted by the energy-absorbing component to the rear side beam and the rear longitudinal beam, which are fixedly installed on the mounting plate, thereby completing the transmission and dispersion of the impact force.

[0015] Preferably, the anti-collision component includes an anti-collision beam and a partial beam, wherein the partial beam is fixedly mounted on the anti-collision beam;

[0016] The main energy-absorbing component is fixedly disposed between the mounting plate and the anti-collision beam, and the secondary energy-absorbing component is located away from the surface of the mounting plate, while abutting against the anti-collision beam and the local beam.

[0017] When a collision occurs, the anti-collision beam can transfer the impact force to the main energy-absorbing components and the secondary energy-absorbing components connected to it. At the same time, the added local beams can increase the cross-sectional area of ​​the anti-collision beam in the Z direction, enabling it to transfer and disperse more energy to the rear side beams and rear longitudinal beams, thereby improving collision performance.

[0018] Preferably, the main energy-absorbing assembly includes at least one set of main energy-absorbing plates, and two main energy-absorbing plates in each set are interlocked to form a main energy-absorbing box.

[0019] The main energy-absorbing box is fixedly disposed between the mounting plate and the anti-collision beam, and the mounting surface of the main energy-absorbing box corresponds to the mounting surface of the rear longitudinal beam.

[0020] The installation height of the main energy-absorbing box is offset from the installation height of the secondary energy-absorbing component.

[0021] As a component that transmits impact force, the main energy-absorbing box can transfer the impact force to the mounting plate connected to it, and then transfer the impact force to the rear side beam and the rear longitudinal beam through the mounting plate. The rear longitudinal beam is horizontal and can absorb a larger impact force, so the mounting surface of the main energy-absorbing box is aligned with the mounting surface of the rear longitudinal beam, so that the impact force on the main energy-absorbing box is transferred to the rear longitudinal beam.

[0022] Preferably, the secondary energy-absorbing component includes at least one set of secondary energy-absorbing plates, and two secondary energy-absorbing plates in each set are interlocked to form a secondary energy-absorbing box;

[0023] The side of the secondary energy-absorbing box facing the mounting plate is in complete contact with the mounting plate, the side of the secondary energy-absorbing component facing the anti-collision beam is in contact with both the anti-collision beam and the partial beam, and the mounting surface of the secondary energy-absorbing box corresponds to the mounting surface of the rear beam.

[0024] The installation height of the main energy-absorbing box is offset from that of the auxiliary energy-absorbing box.

[0025] Similarly, the secondary energy-absorbing box, as a force-transmitting component, can transfer the impact force to the mounting plate, and then transfer the impact force to the rear side beam and rear longitudinal beam through the mounting plate. The mounting surfaces of the secondary energy-absorbing box and the rear side beam are opposite each other, so that the impact force on the secondary energy-absorbing box is transferred to the rear beam. Due to the staggered installation height of the main energy-absorbing box and the secondary energy-absorbing box, the force transmission path is changed. The changed force transmission path can greatly reduce the imbalance of impact force transmission, thus making it more suitable for the rear longitudinal beam and rear side beam opposite to the main and secondary energy-absorbing box components.

[0026] Preferably, the upper edge of the mounting plate on which the secondary energy-absorbing box is located is higher than the upper edge of the secondary energy-absorbing box.

[0027] The above method ensures that the secondary energy-absorbing box is fully in contact with the mounting plate, preventing imbalance during the transmission of impact force due to the secondary energy-absorbing box being partially suspended.

[0028] Preferably, the mounting surface of the rear beam that abuts against the mounting plate is at the same mounting height as the mounting surface of the auxiliary energy-absorbing box.

[0029] By raising the secondary energy-absorbing box and simultaneously raising the installation height of the rear side beam, the installation surface of the rear side beam corresponds to the installation surface of the secondary energy-absorbing box, thereby enabling more effective transmission of impact force to the rear side beam.

[0030] Preferably, the volume of the main energy-absorbing box is larger than the volume of the secondary energy-absorbing box.

[0031] As the primary energy-transmitting component, the main energy-absorbing box needs to have a larger volume than the secondary energy-absorbing box in order to absorb and transmit more impact force.

[0032] Preferably, the top edge of the local beam is higher than the top edge of the secondary energy-absorbing box.

[0033] Similarly, prevent the energy-absorbing box from extending beyond the top of the local beam and becoming suspended in mid-air to prevent imbalance when transmitting collision forces.

[0034] Preferably, the bottom end of the anti-collision beam protrudes beyond the bottom end of the secondary energy-absorbing box.

[0035] Similar to the above, the lower end of the secondary energy-absorbing box is prevented from extending beyond the anti-collision beam and becoming suspended in the air, so that the secondary energy-absorbing box is completely in contact with the anti-collision beam or a partial beam to prevent imbalance when transmitting collision force.

[0036] In summary, during installation, the main and auxiliary energy-absorbing boxes are staggered in height. When the anti-collision component is impacted, the impact force is transmitted through the main and auxiliary energy-absorbing boxes at different heights. Specifically, the mounting surface of the main energy-absorbing box corresponds to the mounting surface of the rear longitudinal beam, and the mounting surface of the auxiliary energy-absorbing box corresponds to the mounting surface of the rear side beam. The auxiliary energy-absorbing box, located at a higher position, transmits the impact force to a higher position and then to the rear side beam, while the main energy-absorbing box, located at a lower position, transmits the impact force to a lower position and then to the rear longitudinal beam. As can be seen from the above, the impact force is dispersed and transmitted through energy-absorbing boxes at different heights, thereby changing the force transmission path. The changed force transmission path can greatly reduce the imbalance of impact force transmission, thus better adapting to the side beam component connected to the energy-absorbing box component, allowing the impact force to be effectively transmitted to the side beam component and preventing the concentration of impact force.

[0037] As can be seen from the above, the improved installation structure can reduce damage to the side beam assembly, thereby mitigating collision damage to the vehicle and further ensuring the safety of the occupants. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the energy-absorbing box installation structure provided in the prior art of this invention;

[0040] Figure 2 This is a schematic diagram from another perspective of the energy-absorbing box mounting structure provided in the prior art of this invention;

[0041] Figure 3 This is a schematic diagram of the energy-absorbing box installation structure provided in one embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram from another perspective of the energy-absorbing box mounting structure provided in one embodiment of the present invention;

[0043] Figure 5 This is an enlarged schematic diagram of the energy-absorbing box mounting structure provided in one embodiment of the present invention;

[0044] Figure 6 This is a front view of the energy-absorbing box provided in one embodiment of the present invention.

[0045] The components represented by each number in the above attached diagram are listed below:

[0046] 1. Collision protection components; 101. Collision protection beam; 102. Partial beam; 2. Side beam components; 201. Mounting plate; 202. Rear longitudinal beam; 203. Rear side beam; 3. Main energy absorption components; 301. Main energy absorption box; 4. Secondary energy absorption components; 401. Secondary energy absorption box. Detailed Implementation

[0047] To make the above and other features and advantages of the present invention clearer, the invention will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art and are exemplary only, not restrictive.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] refer to Figures 3-6 In one embodiment of the present invention, an energy-absorbing box installation structure is provided, including an anti-collision component 1 and a side beam component 2; a main energy-absorbing component 3 and a secondary energy-absorbing component 4 are fixedly disposed between the anti-collision component 1 and the side beam component 2, and the installation height of the secondary energy-absorbing component 4 is offset from the installation height of the main energy-absorbing component 3; the surface of the secondary energy-absorbing component 4 facing the anti-collision component 1 is in complete contact with the anti-collision component 1, and the surface of the secondary energy-absorbing component 4 facing the side beam component 2 is in complete contact with the side beam component 2.

[0054] During installation, the main energy-absorbing component 3 and the auxiliary energy-absorbing component 4 are installed at different heights. When the anti-collision component 1 is impacted, the impact force is transmitted through the main energy-absorbing component 3 and the auxiliary energy-absorbing component 4 at different heights. The energy-absorbing component at the higher position transmits the impact force to the higher position and then to the side beam component 2, while the energy-absorbing component at the lower position transmits the impact force to the lower position and then to the side beam component 2. As can be seen from the above, the impact force is dispersed and transmitted through the energy-absorbing components at different heights, thereby changing the force transmission path. The changed force transmission path can greatly reduce the imbalance of impact force transmission, thus making it more suitable for the side beam component 2 connected to the energy-absorbing box component, so that the impact force can be effectively transmitted to the side beam component 2 to prevent the concentration of impact force.

[0055] As can be seen from the above, the improved installation structure can reduce damage to the side beam assembly 2, thereby mitigating collision damage to the vehicle and further ensuring the safety of the occupants.

[0056] Based on the above embodiments, other embodiments of this application may be further additions or limitations made by one or more of the following combinations based on the specific embodiments described above.

[0057] The side beam assembly 2 includes a side mounting plate 201, a rear side beam 203, and a rear longitudinal beam 202, with the rear side beam 203 and the rear longitudinal beam 202 respectively mounted on the mounting plate 201; the main energy-absorbing assembly 3 is fixedly mounted between the mounting plate 201 and the anti-collision assembly 1, and the secondary energy-absorbing assembly 4 is located away from the surface of the mounting plate 201, while abutting against the anti-collision beam 101 and the local beam 102.

[0058] The main energy-absorbing component 3 and the auxiliary energy-absorbing component 4, which are fixedly installed on the mounting plate 201, can transfer the collision force transmitted by the energy-absorbing component to the rear side beam 203 and the rear longitudinal beam 202, which are fixedly installed on the mounting plate 201, thereby completing the transmission and dispersion of the collision force.

[0059] The anti-collision component 1 includes an anti-collision beam 101 and a partial beam 102, with the partial beam 102 fixedly mounted on the anti-collision beam 101; the main energy-absorbing component 3 is fixedly mounted between the mounting plate 201 and the anti-collision beam 101, and the secondary energy-absorbing component 4, facing the anti-collision beam 101, simultaneously abuts against both the anti-collision beam 101 and the partial beam 102.

[0060] When a collision occurs, the anti-collision beam 101 can transfer the impact force to the main energy-absorbing component 3 and the auxiliary energy-absorbing component 4 connected to it. At the same time, the added local beam 102 can increase the cross-sectional area of ​​the anti-collision beam 101 in the Z direction, so that it can transfer and disperse more energy to the rear side beam 203 and the rear longitudinal beam 202, thereby improving the collision performance.

[0061] The main energy-absorbing component 3 includes at least one set of main energy-absorbing plates, and two main energy-absorbing plates in each set are interlocked to form a main energy-absorbing box 301; the main energy-absorbing box 301 is fixedly disposed between the mounting plate 201 and the anti-collision beam 101, and the mounting surface of the main energy-absorbing box 301 corresponds to the mounting surface of the rear longitudinal beam 202; the installation height of the main energy-absorbing box 301 is offset from the installation height of the auxiliary energy-absorbing component 4.

[0062] The main energy-absorbing box 301, as a component for transmitting impact force, can transfer the impact force to the mounting plate 201 connected to it, and then transfer the impact force to the rear side beam 203 and the rear longitudinal beam 202 through the mounting plate 201. The rear longitudinal beam 202 is horizontal and can absorb a larger impact force, so the mounting surface of the main energy-absorbing box 301 is aligned with the mounting surface of the rear longitudinal beam 202, so that the impact force on the main energy-absorbing box 301 is transferred to the rear longitudinal beam 202.

[0063] The secondary energy-absorbing component 4 includes at least one set of secondary energy-absorbing plates. Two secondary energy-absorbing plates in each set are interlocked to form a secondary energy-absorbing box 401. The side of the secondary energy-absorbing box 401 facing the mounting plate 201 is in complete contact with the mounting plate 201. The side of the secondary energy-absorbing component 4 facing the anti-collision beam 101 is in contact with both the anti-collision beam 101 and the partial beam 102. The mounting surface of the secondary energy-absorbing box 401 corresponds to the mounting surface of the rear beam 203. The mounting height of the main energy-absorbing box 301 is offset from the mounting height of the secondary energy-absorbing box 401.

[0064] Similarly, the secondary energy-absorbing box 401, as a force-transmitting component, can transfer the impact force to the mounting plate 201, and then transfer the impact force to the rear side beam 203 and the rear longitudinal beam 202 through the mounting plate 201. The mounting surfaces of the secondary energy-absorbing box 401 and the rear side beam 203 are opposite each other, so that the impact force on the secondary energy-absorbing box 401 is transferred to the rear side beam 203. Due to the misalignment of the mounting heights of the main energy-absorbing box 301 and the secondary energy-absorbing box 401, the force transmission path is changed. The changed force transmission path can greatly reduce the imbalance of impact force transmission, thus making it more suitable for the rear longitudinal beam 202 and the rear side beam 203 opposite to the main and secondary energy-absorbing box 401 components.

[0065] The upper edge of the mounting plate 201, on which the secondary energy-absorbing box 401 is located, is higher than the upper edge of the secondary energy-absorbing box 401. This ensures that the secondary energy-absorbing box 401 is fully in contact with the mounting plate 201, preventing imbalance during the transmission of impact force due to the secondary energy-absorbing box 401 being partially suspended.

[0066] The mounting surface of the rear beam 203 that abuts against the mounting plate 201 is at the same mounting height as the mounting surface of the auxiliary energy-absorbing box 401. By raising the auxiliary energy-absorbing box 401, the mounting height of the rear beam 203 is also raised, so that the mounting surface of the rear beam 203 corresponds to the mounting surface of the auxiliary energy-absorbing box 401, thereby enabling more effective transmission of impact force to the rear beam 203.

[0067] The main energy-absorbing box 301 has a larger volume than the secondary energy-absorbing box 401. As the main transmission component, the main energy-absorbing box 301 needs to have a larger volume than the secondary energy-absorbing box 401 in order to absorb and transmit more collision force.

[0068] The top edge of the partial beam 102 is higher than the top edge of the secondary energy-absorbing box 401. This also prevents the energy-absorbing box from extending beyond the upper end of the partial beam 102 and becoming suspended, thus preventing imbalance during the transmission of impact forces. The bottom end of the anti-collision beam 101 protrudes beyond the bottom end of the secondary energy-absorbing box 401. Similarly, this prevents the lower end of the secondary energy-absorbing box 401 from extending beyond the anti-collision beam 101 and becoming suspended, ensuring that the secondary energy-absorbing box 401 is fully in contact with the anti-collision beam 101 or the partial beam 102, thus preventing imbalance during the transmission of impact forces.

[0069] Please refer to Figures 3-4 In some embodiments provided by the present invention, the energy-absorbing box mounting structure includes a crash beam 101, a mounting plate 201, and a rear side beam 203 and a rear longitudinal beam 202 fixedly mounted on the mounting plate 201. A main energy-absorbing box 301 and a secondary energy-absorbing box 401 are fixedly mounted between the crash beam 101 and the mounting plate 201. The mounting height of the main energy-absorbing box 301 and the secondary energy-absorbing box 401 are staggered, that is, the mounting height of the secondary energy-absorbing box 401 is lower than the mounting height of the main energy-absorbing box 301. Correspondingly, the mounting height of the rear longitudinal beam 202 is the same as the mounting height of the main energy-absorbing box 301. At the same time, the mounting height of the rear side beam 203 is raised so that it is the same as the mounting height of the secondary energy-absorbing box 401. That is, the mounting surface of the main energy-absorbing box 301 corresponds to the mounting surface of the rear longitudinal beam 202, and the mounting surface of the secondary energy-absorbing box 401 corresponds to the mounting surface of the rear side beam 203.

[0070] The main energy-absorbing box 301 is composed of two U-shaped main energy-absorbing plates, which face each other and are fastened together; the auxiliary energy-absorbing box 401 is also composed of two U-shaped auxiliary energy-absorbing plates, which face each other and are fastened together.

[0071] By achieving a height misalignment between the main energy-absorbing box 301 and the secondary energy-absorbing box 401, the impact force can be dispersed during transmission, thereby changing the force transmission path. At the same time, the energy-absorbing box is more compatible with the rear longitudinal beam 202 and the rear side beam 203 corresponding to the energy-absorbing box, so that the impact force can be effectively transmitted and the concentration of the impact force can be prevented.

[0072] refer to Figure 4 The rear beam 203 is curved. While the mounting surface of the rear beam 203 is raised, its curvature is also reduced, thereby improving the bending resistance of the rear beam 203 and enabling it to effectively transmit and absorb energy.

[0073] refer to Figures 4-5A partial beam 102 is also fixedly installed on the anti-collision beam 101. Due to the increased installation height of the secondary energy-absorbing box 401, the top edge of the partial beam 102 is always higher than the top edge of the secondary energy-absorbing box 401. The bottom end of the anti-collision beam 101 protrudes beyond the bottom end of the secondary energy-absorbing box 401. Correspondingly, the upper end of the mounting plate 201 is raised along with the installation height of the secondary energy-absorbing box 401, so that the mounting surface of the secondary energy-absorbing box 401 at the end that abuts against the mounting plate 201 is completely in contact with the mounting plate 201. Similarly, when the main energy-absorbing box 301 is installed, its mounting surfaces at both ends are also made to completely abut against the anti-collision beam 101 and the mounting plate 201, respectively. The above arrangement can prevent the energy-absorbing box from being suspended when fixed. The added partial beam 102 can increase the cross-sectional area of ​​the anti-collision beam 101 in the Z direction, enabling it to transfer and disperse more energy to the energy-absorbing box.

[0074] refer to Figure 5 The thickness of the local beam 102 is the same as that of the anti-collision beam 101. Its height can be adjusted according to the height of the secondary energy-absorbing box 401, but the overall height does not exceed 600 mm, that is, the height from the ground to the top of the local beam 102, so as to ensure the transmission and dispersion of collision force without affecting the overall installation.

[0075] refer to Figure 6 The length of the mounting surface of the main energy-absorbing box 301 is longer than that of the mounting surface of the auxiliary energy-absorbing box 401. That is, when viewed from the Z direction, the main energy-absorbing box 301 is wider than the auxiliary energy-absorbing box 401. Since the main energy-absorbing box 301 is opposite to the rear longitudinal beam 202, and the rear longitudinal beam 202 is horizontal, it can withstand greater impact force. Therefore, more collision force needs to be transferred to the rear longitudinal beam 202, and the larger main energy-absorbing box 301 can transfer more collision force.

[0076] At one end of the mounting plate 201 near the main energy-absorbing box 301, there is also an integrally formed secondary mounting plate 201. The secondary mounting plate 201 is bent into a square shape towards the anti-collision beam 101. The secondary mounting plate 201 has mounting holes for connecting with the vehicle frame. The mounting plate 201 also has multiple mounting holes, which can be used to install and fix it to the vehicle frame.

[0077] In summary, by installing the main energy-absorbing box 301 and the auxiliary energy-absorbing box 401 at different heights, the impact force can be dispersed and transmitted. Specifically, the installation height of the auxiliary energy-absorbing box 401 is higher than that of the main energy-absorbing box 301. When impacted, the impact force is transmitted through the main and auxiliary energy-absorbing boxes 401 to the rear longitudinal beam 202 and the rear side beam 203, which are opposite to the main and auxiliary energy-absorbing boxes 401, respectively. Therefore, the transmission path of the impact force is dispersed by the main and auxiliary energy-absorbing boxes 401, making it more suitable for the rear side beam 203 or the rear longitudinal beam 202. Correspondingly, the installation height of the rear longitudinal beam 202 is also increased, and its installation surface corresponds to the installation surface of the auxiliary energy-absorbing box 401. This not only reduces the curvature on the rear side beam 203, but also allows the force on the auxiliary energy-absorbing box 401 to be more effectively transmitted to the rear side beam 203, thereby improving the impact performance. As can be seen from the above, the collision force will be dispersed and transmitted through energy-absorbing boxes at different heights, thereby changing the force transmission path and making the collision force more effectively transmitted to the rear side beam 203 or the rear longitudinal beam 202, thus reducing the collision damage to the car.

[0078] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An energy-absorbing box mounting structure, characterized in that, Including anti-collision components and side beam components; A main energy-absorbing component and a secondary energy-absorbing component are fixedly installed between the anti-collision component and the side beam component, and the installation height of the secondary energy-absorbing component is offset from the installation height of the main energy-absorbing component. The side of the secondary energy-absorbing component facing the anti-collision component is in complete contact with the anti-collision component, and the side of the secondary energy-absorbing component facing the side beam component is in complete contact with the side beam component. The main energy-absorbing component includes at least one set of main energy-absorbing plates, and two main energy-absorbing plates in each set are interlocked to form a main energy-absorbing box; the secondary energy-absorbing component includes at least one set of secondary energy-absorbing plates, and two secondary energy-absorbing plates in each set are interlocked to form a secondary energy-absorbing box. The installation height of the secondary energy-absorbing box is higher than that of the main energy-absorbing box; The side beam assembly includes a side mounting plate, a rear side beam, and a rear longitudinal beam, with the rear side beam and the rear longitudinal beam respectively mounted on the mounting plate; the anti-collision assembly includes an anti-collision beam and a partial beam, with the partial beam fixedly mounted on the anti-collision beam; The main energy-absorbing component is fixedly disposed between the mounting plate and the anti-collision beam, and the secondary energy-absorbing component is located away from the surface of the mounting plate, while abutting against the anti-collision beam and the local beam. The top edge of the partial beam is higher than the top edge of the secondary energy-absorbing box, the bottom end of the anti-collision beam protrudes beyond the bottom end of the secondary energy-absorbing box, and the upper edge of the mounting plate on which the secondary energy-absorbing box is mounted is higher than the upper edge of the secondary energy-absorbing box.

2. The energy-absorbing box mounting structure according to claim 1, characterized in that, The main energy-absorbing box is fixedly disposed between the mounting plate and the anti-collision beam, and the mounting surface of the main energy-absorbing box corresponds to the mounting surface of the rear longitudinal beam. The installation height of the main energy-absorbing box is offset from the installation height of the secondary energy-absorbing component.

3. The energy-absorbing box installation structure according to claim 2, characterized in that, The side of the secondary energy-absorbing box facing the mounting plate is in complete contact with the mounting plate, the side of the secondary energy-absorbing component facing the anti-collision beam is in contact with both the anti-collision beam and the partial beam, and the mounting surface of the secondary energy-absorbing box corresponds to the mounting surface of the rear beam. The installation height of the main energy-absorbing box is offset from that of the auxiliary energy-absorbing box.

4. The energy-absorbing box mounting structure according to claim 3, characterized in that, The mounting surface of the rear beam that abuts against the mounting plate is at the same mounting height as the mounting surface of the auxiliary energy-absorbing box.

5. The energy-absorbing box mounting structure according to claim 3, characterized in that, The volume of the main energy-absorbing box is larger than the volume of the secondary energy-absorbing box.

Images