CN220785684U

CN220785684U - Skateboard chassis energy-absorbing structure

Info

Publication number: CN220785684U
Application number: CN202322348387.7U
Authority: CN
Inventors: 张梅菊; 邵峰; 张超; 杜春明
Original assignee: Master Lightweight Technology Tianjin Co ltd
Current assignee: Master Lightweight Technology Tianjin Co ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-04-16
Anticipated expiration: 2033-08-31

Abstract

The utility model relates to a skateboard chassis energy-absorbing structure, which comprises: the battery box shell connecting assembly and the beam structure are respectively mechanically connected with the vehicle body framework to realize stress buffering of the beam structure, the battery box shell connecting assembly comprises a buffer block, the beam structure comprises a connecting rod, and the position of the connecting rod corresponds to the position of the buffer block to realize that the buffer block is contacted and extruded by the connecting rod after the beam structure is impacted; the connecting component passes through the guide groove through the connecting bolt and is mechanically connected with the mounting seat so as to realize the mounting fixation and force transmission guide of the beam structure. The utility model improves the buffering and energy absorbing effects after the automobile is impacted by utilizing the structural design of the foamed aluminum buffer block, realizes the guiding effect on the front impact force by utilizing the structural and shape design of the guide groove, disperses the front impact force, has good safety, reduces the injury probability of parts and personnel on the automobile, and has good energy absorbing and anti-collision effects.

Description

Skateboard chassis energy-absorbing structure

Technical Field

The utility model belongs to the field of automobile production and manufacturing, and particularly relates to a skateboard chassis energy absorption structure.

Background

The automobile weight reduction is realized by integrating and applying a structure weight reduction design technology with various weight reduction materials and weight reduction manufacturing technologies under the condition of meeting the automobile use requirement, safety and cost control; with the continuous development of automobile light-weight technology, people continuously promote automobile safety performance requirements, especially how to furthest protect safety of personnel and other equipment on an automobile under the collision condition of the automobile, for a new energy automobile, the safety of the automobile body is more important under the collision condition because a battery shell consisting of a plurality of batteries is arranged in the automobile body, so that how to enable an automobile, especially an automobile skateboard chassis, to have certain strength under the collision condition and fully absorb and disperse impact force is a technical point that technicians need to continuously improve and promote, and further research and promotion of the safety under the collision condition of the automobile are particularly necessary.

Disclosure of Invention

The utility model aims to provide the energy absorption structure of the chassis of the skateboard, which has reasonable design and good energy absorption effect and effectively improves the safety of a new energy automobile under the collision condition.

To achieve the above object, an embodiment of the present utility model provides a skateboard chassis energy absorbing structure, including: the battery box shell connecting assembly comprises a vehicle body framework, a battery box shell connecting assembly and a beam structure, wherein the battery box shell connecting assembly is respectively and mechanically connected with the vehicle body framework and used for realizing stress buffering of the beam structure, the battery box shell connecting assembly comprises a buffer block, the beam structure comprises a connecting rod, the connecting rod corresponds to the buffer block in position and is used for realizing that the beam structure is impacted and then contacts and extrudes the buffer block by the connecting rod so as to protect the battery box shell connecting assembly.

Preferably, the material of the buffer block is foamed aluminum.

Further, the buffer block is provided with a buffer surface, and the edge curve of the horizontal cross section of the buffer surface is one of wavy and zigzag.

Further, the connecting rod is made of one of steel and aluminum alloy.

Further, the beam structure further comprises at least two connecting components which are arranged in bilateral symmetry, and the connecting components are provided with connecting bolts; the automobile body framework comprises at least two mounting seats which are arranged in bilateral symmetry, and guide grooves are formed in the mounting seats; the connecting component is mechanically connected with the mounting seat through the guide groove by the connecting bolt and is used for realizing the mounting fixing and buffering of the beam structure.

Further, the guide groove is in an elliptical shape or a rectangular shape and is used for guiding the connecting bolt to move after being stressed in the horizontal direction in the guide groove.

Further, the left guide groove and the right guide groove are distributed in an inner splayed shape or an outer splayed shape.

The utility model relates to an energy absorption structure of a skateboard chassis, which has the beneficial effects that: the energy absorption structure of the skateboard chassis is reasonable in design and simple in structure, the buffer block in the battery box shell connecting assembly is structurally designed and materials are selected, so that the buffer and energy absorption effects after the automobile is impacted are improved, and the energy absorption buffer effect after the battery box of the new energy automobile is impacted is good; the structure and the shape design of the guide groove are utilized to realize good guide effect on the front impact force, and the front impact force is dispersed; the skateboard chassis energy-absorbing structure provided by the utility model has the advantages of good safety, reduced probability of injury of parts and personnel on the scooter, and good energy-absorbing and anti-collision effects.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present utility model and are not limiting of the present utility model.

FIG. 1 is a perspective structure diagram of an energy absorbing structure of a skateboard chassis provided by an embodiment of the utility model;

fig. 2 is a perspective view of a battery case housing connection assembly according to an embodiment of the present utility model;

FIG. 3 is a perspective view of a beam structure according to an embodiment of the present utility model;

fig. 4 is a perspective view of a vehicle body framework provided by an embodiment of the present utility model;

FIG. 5 is a perspective view of a portion of an energy absorbing structure of a skateboard chassis provided by an embodiment of the present utility model;

FIG. 6 is an enlarged view of a portion A of FIG. 5;

FIG. 7 is a perspective view of a connecting rod according to an embodiment of the present utility model;

FIG. 8 is a perspective view of a buffer block according to an embodiment of the present utility model;

fig. 9 is a top view of a mounting seat according to an embodiment of the present utility model.

In the figure:

1. a vehicle body skeleton; 11. a mounting base; 111. a guide groove; 2. a battery case housing connection assembly; 21. a buffer block; 211. a buffer surface; 3. a beam structure; 31. a connecting rod; 32. a connection assembly; 321. and (5) connecting bolts.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The positions of the described objects in the embodiments in the figures such as "up", "down", "left", "right", "front", "rear", etc. are merely used to indicate the relative positional relationship, and when the absolute position of the described object in the embodiments is changed, the relative positional relationship may be changed accordingly.

A skateboard chassis energy absorbing structure according to an embodiment of the present utility model is described in detail below with reference to the accompanying drawings.

FIG. 1 shows a perspective structure diagram of a skateboard chassis energy absorbing structure provided by an embodiment of the utility model; fig. 2 is a perspective view showing a battery case housing connection assembly according to an embodiment of the present utility model; FIG. 3 shows a perspective view of a beam structure provided by an embodiment of the present utility model; fig. 4 shows a three-dimensional structure diagram of a vehicle body skeleton provided by an embodiment of the present utility model; FIG. 5 illustrates a perspective view of a portion of an energy absorbing structure of a skateboard chassis provided by an embodiment of the present utility model; FIG. 6 shows an enlarged view of a portion A of FIG. 5; fig. 7 shows a perspective structure diagram of a connecting rod according to an embodiment of the present utility model; FIG. 8 shows a perspective structure diagram of a buffer block according to an embodiment of the present utility model;

fig. 9 shows a top view of a mounting seat provided by an embodiment of the present utility model. As shown in fig. 1 to 9, an energy absorbing structure of a skateboard chassis provided by an embodiment of the present utility model includes: the automobile body framework 1, the battery box shell connecting component 2 and the beam structure 3, wherein the battery box shell connecting component 2 and the beam structure 3 are respectively and mechanically connected with the automobile body framework 1 for realizing stress buffering of the beam structure 3; it should be noted that, for some vehicle types, the beam structure 3 may be a subframe; specifically, the beam structure 3 is located in front of the battery case housing connection assembly 2, and the beam structure 3 and the battery case housing connection assembly are located in the same plane, wherein the battery case housing connection assembly 2 comprises a buffer block 21, the beam structure 3 comprises a connecting rod 31, the connecting rod 31 corresponds to the buffer block 21 in position and is used for realizing that the beam structure 3 is contacted and extruded to the buffer block 21 by the connecting rod 31 after being impacted so as to protect the battery case housing connection assembly 2, and impact damage to a battery in the battery case is reduced; specifically, under normal conditions, the connecting rod 31 of the beam structure 3 is not in contact with the buffer block 21 on the battery box shell connecting assembly 2, when an automobile collides, if the beam structure 3 is extruded, the beam structure 3 is displaced backwards, the connecting rod 31 of the beam structure 3 is in contact with and extruded with the buffer block 21 on the battery box shell connecting assembly 2, so that the buffer block 21 deforms, the energy of the collision can be absorbed, the damage of the battery box shell connecting assembly 2 and rear automobile body parts is reduced, the damage degree of the automobile is reduced, and the damage probability of personnel in the automobile is reduced, wherein the battery box shell connecting assembly 2 is arranged outside the shell of the battery box of the new energy automobile and is mainly used for mechanically connecting the battery box on the automobile body framework 1; for the new energy automobile, the battery box shell connecting component 2 is generally arranged at the middle part of the automobile body framework 1 at the rear part, a plurality of batteries are arranged in the battery box shell, the impact on the battery box shell connecting component 2 is greatly buffered by the buffer block 21, and the spontaneous combustion risk of the batteries in the battery box shell connecting component is reduced.

It should be noted that, the material of the buffer block 21 provided by the embodiment of the utility model is foamed aluminum, and the characteristics of small density, high impact absorption capability and easy processing of the foamed aluminum are mainly utilized, and a large number of pores exist in the foamed aluminum, so that the foamed aluminum has the advantages of light weight, high specific strength and the like, and has strong energy absorption property and impact resistance; as another embodiment, the buffer block 21 can be replaced by an aluminum profile with a cavity structure, and the buffer block can also play a role in buffering and absorbing energy to a certain extent.

In the skateboard chassis energy absorbing structure provided by the embodiment of the utility model, as a further improvement, the buffer block 21 is provided with the buffer surface 211, the horizontal cross-section edge curve of the buffer surface 211 is one of wavy and zigzag, of course, the horizontal cross-section edge curve of the buffer surface 211 can also be in the shape of triangular waveform, rectangular waveform, trapezoid waveform and the like, including but not limited to the shape, the buffer surface 211 can realize that the strength of the buffer block 21 changes from front to back in a gradient manner by using the shape, so that the strength of different positions on the buffer block 21 is different, when the automobile is impacted by the front to cause the beam structure 3 to move backwards to squeeze the buffer block 21, the strength of the buffer block 21 from front to back is gradually enhanced, the energy absorbing effect is good, the size of different impact forces can be favorably responded, different deformation effects are generated, and the damage degree after the automobile impact is reduced as much as possible.

In the energy absorption structure of the skateboard chassis provided by the embodiment of the utility model, as a further improvement, the connecting rod 31 is of a cavity structure, and the connecting rod 31 is made of one of steel and aluminum alloy; of course, if the connecting rod 31 is of a solid structure, but the weight will be increased correspondingly, and the energy absorbing effect will be reduced correspondingly; the cavity structure of the connecting rod 31 in this embodiment reduces its own weight, and the strength of the connecting rod 31 is ensured by using steel materials or aluminum alloy materials, so that the connecting rod 31 is not easy to deform when the buffer block 21 is extruded under the collision condition, the number of damaged parts at the rear part is reduced, the damage degree is reduced, and the safety of the driver is ensured.

In the skateboard chassis energy absorption structure provided by the embodiment of the utility model, the beam structure 3 further comprises at least two connecting components 32 which are arranged symmetrically left and right, and the connecting components 32 are provided with connecting bolts 321; the automobile body framework 1 comprises at least two mounting seats 11 which are symmetrically arranged left and right, wherein the mounting seats 11 are of sheet metal structures, and guide grooves 111 are formed in the mounting seats 11; the connection assembly 32 is mechanically connected with the mounting seat 11 through the guide groove 111 by a connection bolt 321 for realizing the mounting fixation and the stress buffering of the beam structure 3.

As a further improvement of the embodiment of the present utility model, the guide groove 111 has one of an oval shape and a rectangular shape for guiding the connecting bolt 321 to move after being stressed in the horizontal direction in the guide groove 111, and when the beam structure 3 is impacted, the connecting bolt 321 in the upper connecting assembly 32 moves along the guide groove 111; it should be noted that the shape of the guide groove 111 may be other shapes as well, such as: an oblate shape, etc., may be used, and combinations of two or more of the above shapes may be used, including but not limited to the above shapes, as long as the attachment bolt 321 can be fixed to the guide groove 111 and can be displaced in a specific direction after being impacted; preferably, the left and right guide grooves 111 are distributed in an inner splayed shape or an outer splayed shape; like this, when beam structure 3 received the striking, beam structure 3 and the connecting bolt 321 on the coupling assembling 32 can produce the removal along guide slot 111, play good guide effect to the impact direction, can decompose the component on the side direction with positive impact, effectively reduce positive impact for impact is conducted to automobile body skeleton 1 rear portion longeron position along the direction of guide slot 111, utilize the stronger intensity and the rigidity of automobile body skeleton 1 rear portion longeron to alleviate the impact injury, thereby alleviate the front damage degree of car, in order to ensure personnel's safety on the car, the security has been improved.

Compared with the prior art, the energy absorption structure of the scooter chassis is reasonable in design and simple in structure, the buffer block 21 in the battery box shell connecting assembly 2 is used for improving the buffer and energy absorption effects after the automobile is impacted by the aid of structural design and material selection, and the energy absorption buffer effect after the battery box of the new energy automobile is impacted is good; the structure and the shape design of the guide groove 111 are utilized to realize good guide effect on the front impact force, and the front impact force is dispersed; the skateboard chassis energy-absorbing structure provided by the utility model has the advantages of good safety, reduced probability of injury of parts and personnel on the scooter, and good energy-absorbing and anti-collision effects.

The following points need to be described:

(1) Unless otherwise defined, like reference numerals refer to like meanings in the embodiments of the utility model and the figures.

(2) The drawings of the embodiments of the present utility model relate only to the structures related to the embodiments of the present utility model, and other structures may refer to the general designs.

(3) In the drawings for describing embodiments of the present utility model, some of the structures in the drawings may be exaggerated or reduced for clarity, i.e., the drawings are not drawn to actual scale.

(4) The embodiments of the utility model and the features of the embodiments can be combined with each other to give new embodiments without conflict.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A skateboard chassis energy absorbing structure, comprising: automobile body skeleton (1), battery case body coupling assembling (2), beam structure (3), battery case body coupling assembling (2) beam structure (3) respectively with automobile body skeleton (1) carry out mechanical connection and are used for realizing beam structure (3) atress buffering, battery case body coupling assembling (2) include buffer block (21), beam structure (3) include connecting rod (31), connecting rod (31) with the position correspondence of buffer block (21) is used for realizing beam structure (3) are utilized after being impacted connecting rod (31) are right buffer block (21) form contact and extrusion in order to protect battery case body coupling assembling (2).

2. The skateboard chassis energy absorbing structure according to claim 1, characterized in that the material of the buffer block (21) is foamed aluminum.

3. The skateboard chassis energy absorbing structure according to claim 2, wherein the bumper block (21) is provided with a bumper face (211), and a horizontal cross-sectional edge curve of the bumper face (211) is one of wavy and zigzag.

4. The skateboard chassis energy absorbing structure according to claim 1, wherein the material of the connecting rod (31) is one of steel and aluminum alloy.

5. The skateboard chassis energy absorbing structure according to any of claims 1-4, characterized in that the beam structure (3) further comprises at least two connection assemblies (32) and is arranged symmetrically left and right, the connection assemblies (32) are provided with connection bolts (321); the automobile body framework (1) comprises at least two mounting seats (11) which are symmetrically arranged left and right, and guide grooves (111) are formed in the mounting seats (11); the connecting component (32) is mechanically connected with the mounting seat (11) through the guide groove (111) by the connecting bolt (321) for realizing the mounting fixing and buffering of the beam structure (3).

6. The skateboard chassis energy absorbing structure of claim 5, wherein the guide groove (111) is one of elliptical and rectangular in shape for guiding the connecting bolt (321) to move after being stressed in the horizontal direction in the guide groove (111).

7. The skateboard chassis energy absorbing structure of claim 6, wherein the left and right guide slots (111) are distributed in an inside splayed or an outside splayed shape.