Modular crash energy absorbing structure for non-load-bearing frame rail
Patent Information
- Application Number
- CN202522710039.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-22
AI Technical Summary
由于我国车辆是左舵车型，因此驾驶员在车辆左侧驾驶，车辆碰撞要求也是在左侧进行，但随着汽车产业的国际化发展趋势，越来越多的车企将生产制造的车辆销往海外，而外国不少国家的车型是右舵车型，面对此类情况就需要对侧面碰撞吸能结构重新设计，致使同一款车型存在两套侧面碰撞吸能结构，大大增加研发成本及生产制造费用
[0009]本实用新型优点在于通过由矩形吸能块构成的第一吸能单元、由吸能支架构成的第二吸能单元以及由加强板构成的第三吸能单元，能够轻松布置于车架纵梁上，并且无需区分左右舵车型，实现左侧车架纵梁和右侧车架纵梁均可快速布置，大大增强车辆侧面碰撞的吸能、消能效果，提升车辆安全性，满足车辆星级碰撞测试的侧面碰撞指标要求，使一款车型仅配备一套侧面碰撞吸能结构即可，增强侧面碰撞吸能结构的适配性，降低研发成本及生产制造成本。
Smart Images
Figure CN224898928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive collision safety technology, and in particular to a non-load-bearing frame longitudinal beam modular collision energy absorption structure. Background Technology
[0002] With the continuous development of the automobile consumer market, people have higher and higher requirements for automobile safety. The star rating of automobile products has gradually become an important indicator for consumers to choose a car model. Among them, side impact is an important measure of automobile star rating.
[0003] Existing non-load-bearing body structures often employ specially designed side impact energy-absorbing structures mounted on the chassis assembly, tailored to the vehicle's structural requirements. Since vehicles in my country are left-hand drive, drivers operate from the left, and collision tests are conducted on the left. However, with the increasing internationalization of the automotive industry, more and more automakers are exporting their vehicles overseas, where many vehicles are right-hand drive. This necessitates redesigning the side impact energy-absorbing structures, resulting in two sets of side impact energy-absorbing structures for the same model, significantly increasing research and development costs and manufacturing expenses. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a non-load-bearing modular collision energy absorption structure for vehicle frame longitudinal beams. To achieve the above objectives, the present invention can adopt the following technical solution: The non-load-bearing modular collision energy-absorbing structure of the longitudinal beam of the vehicle frame of this utility model includes a first energy-absorbing unit, a second energy-absorbing unit, and a third energy-absorbing unit disposed on the longitudinal beam of the vehicle frame. The first energy-absorbing unit is a rectangular energy-absorbing block welded to the outer surface of the longitudinal beam of the vehicle frame. The rectangular energy-absorbing block has a hollow structure with a positioning through hole at its center, the axis of which is perpendicular to the outer surface of the longitudinal beam of the vehicle frame. The second energy-absorbing unit is an energy-absorbing bracket disposed in the inner cavity of the longitudinal beam of the vehicle frame. The energy-absorbing bracket consists of a pair of supporting angle steels welded to the upper and lower surfaces of the inner cavity of the longitudinal beam of the vehicle frame, and a plurality of supporting uprights spaced apart between the two supporting angle steels. One side of the supporting upright between the two supporting angle steels is folded over to form a connecting flange welded to the longitudinal beam of the vehicle frame. The third energy-absorbing unit is a reinforcing plate welded to the inner surface of the longitudinal beam of the vehicle frame. The upper and lower edges of the reinforcing plate have snap-fit flanges that are folded over and fastened to the longitudinal beam of the vehicle frame.
[0005] Furthermore, each side wall of the rectangular energy-absorbing block is provided with an inwardly recessed first energy-dissipating groove. The axis of the first energy-dissipating groove is perpendicular to the outer side of the longitudinal beam of the vehicle frame. The energy absorption effect of the rectangular energy-absorbing block can be enhanced through the first energy-dissipating groove, thereby improving the energy dissipation effect during a side collision of the vehicle.
[0006] Furthermore, the supporting angle steel is provided with an inwardly recessed second energy dissipation groove. Multiple second energy dissipation grooves are arranged at intervals along the length direction of the supporting angle steel. The axial direction of each second energy dissipation groove is consistent with the width direction of the supporting angle steel. The energy absorption effect of the supporting angle steel can be enhanced through the second energy dissipation groove, thereby improving the energy dissipation effect during vehicle side collisions.
[0007] Furthermore, a pair of U-shaped reinforcing plates are provided between two adjacent supporting uprights to enhance the support strength between the two adjacent supporting uprights, thereby improving the overall support strength of the energy-absorbing bracket.
[0008] Furthermore, the reinforcing plate has a third energy dissipation groove protruding outward in the middle. The third energy dissipation groove is vertically arranged, and its upper and lower ends extend to the snap-fit flange. The energy absorption effect of the reinforcing plate can be enhanced through the third energy dissipation groove, thereby improving the energy dissipation effect during vehicle side collisions.
[0009] The advantages of this invention are that the first energy-absorbing unit, composed of rectangular energy-absorbing blocks, the second energy-absorbing unit, composed of energy-absorbing brackets, and the third energy-absorbing unit, composed of reinforcing plates, can be easily arranged on the longitudinal beams of the vehicle frame. Moreover, it does not require differentiation between left-hand and right-hand drive vehicles, and can be quickly arranged on both the left and right longitudinal beams of the vehicle frame. This greatly enhances the energy absorption and dissipation effect of side collisions, improves vehicle safety, meets the side collision index requirements of vehicle star-rating crash tests, and allows a vehicle model to be equipped with only one set of side collision energy-absorbing structures. This enhances the adaptability of side collision energy-absorbing structures and reduces research and development costs and manufacturing costs. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 yes Figure 1 Top view.
[0012] Figure 3 yes Figure 1 Axonometric view.
[0013] Figure 4 This is an installation diagram of this utility model. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] like Figure 1-4 As shown, the non-load-bearing frame longitudinal beam modular collision energy absorption structure of this utility model includes a first energy absorption unit, a second energy absorption unit, and a third energy absorption unit disposed on the frame longitudinal beam 100 for reducing the force of side collisions.
[0016] Specifically, the first energy-absorbing unit is a rectangular energy-absorbing block 1 welded to the outer surface of the vehicle frame longitudinal beam. This rectangular energy-absorbing block 1 is a hollow structure with good energy dissipation effect. A positioning through-hole 2 is provided at the center of the rectangular energy-absorbing block 1. The axis of the positioning through-hole 2 is perpendicular to the outer surface of the vehicle frame longitudinal beam 100, allowing for precise positioning of the rectangular energy-absorbing block 1 during installation. To further enhance the energy dissipation effect of the rectangular energy-absorbing block 1, an inwardly recessed first energy dissipation groove 3 should be provided in the middle of each side wall of the rectangular energy-absorbing block 1. The axial direction (i.e., the length direction) of the first energy dissipation groove 3 is perpendicular to the outer surface of the vehicle frame longitudinal beam 100. The first energy dissipation groove 3 enhances the energy absorption effect of the rectangular energy-absorbing block 1 during a collision, thereby improving the energy dissipation effect during a side collision.
[0017] The second energy-absorbing unit is an energy-absorbing bracket 4 arranged in the inner cavity of the longitudinal beam 100 of the vehicle frame. The energy-absorbing bracket 4 consists of a pair of supporting angle steels 4.1 that are fitted and fixed to the upper and lower surfaces of the inner cavity of the longitudinal beam 100 of the vehicle frame, and a plurality of supporting upright plates 4.2 spaced apart between the two supporting angle steels 4.1. One side plate of the supporting upright plate 4.2 located between the two supporting angle steels 4.1 is folded to form a connecting flange 4.3 that can be fitted and welded to the longitudinal beam 100 of the vehicle frame. To further improve the energy dissipation effect of the energy-absorbing bracket 4, an inwardly recessed second energy dissipation groove 5 should also be provided on the supporting angle steel 4.1. A plurality of second energy dissipation grooves 5 are spaced apart along the length direction of the supporting angle steel 4.1, and the axial direction of each second energy dissipation groove 5 is consistent with the width direction of the supporting angle steel 4.1. By setting the second energy dissipation grooves 5, the energy absorption effect of the supporting angle steel 4.1 when it is subjected to a collision can be enhanced, thereby improving the energy dissipation effect during a side collision of the vehicle. In addition, U-shaped reinforcing plates 6 can be installed in pairs between two adjacent support plates 4.2 to enhance the support strength between the two adjacent support plates 4.2, thereby enhancing the overall support strength of the energy-absorbing bracket 4.
[0018] The third energy-absorbing unit is a reinforcing plate 7 that is attached and fixed to the inner side of the longitudinal beam 100 of the vehicle frame. The upper and lower edges of the reinforcing plate 7 have snap-fit flanges 8 that fold and snap onto the longitudinal beam 100 of the vehicle frame. To further improve the energy dissipation effect of the reinforcing plate 7, a third energy dissipation groove 9 that protrudes outward should be provided in the middle of the reinforcing plate 7. The third energy dissipation groove 9 is vertically arranged, and its upper and lower ends extend to the snap-fit flanges 8. The third energy dissipation groove 9 enhances the energy absorption effect of the reinforcing plate 7 when it is subjected to a collision, thereby improving the energy dissipation effect during a side collision of the vehicle.
[0019] The first energy-absorbing unit, consisting of a rectangular energy-absorbing block 1, the second energy-absorbing unit, consisting of an energy-absorbing bracket 4, and the third energy-absorbing unit, consisting of a reinforcing plate 7, can be easily arranged on the longitudinal beam 100 of the vehicle frame. It can be quickly arranged on both the left and right longitudinal beams of the vehicle frame without distinguishing between left-hand and right-hand drive models. This greatly enhances the energy absorption and dissipation effect of side collisions, improves vehicle safety, meets the side collision index requirements of vehicle star-rating crash tests, and allows a vehicle model to be equipped with only one side collision energy-absorbing structure. This enhances the adaptability of the side collision energy-absorbing structure and reduces R&D and manufacturing costs.
[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0021] In this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.
Claims
1. A non-load-bearing frame longitudinal beam modular collision energy absorption structure, characterized in that: The system includes a first energy-absorbing unit, a second energy-absorbing unit, and a third energy-absorbing unit mounted on the longitudinal beam of the vehicle frame. The first energy-absorbing unit is a rectangular energy-absorbing block welded to the outer surface of the longitudinal beam. The rectangular energy-absorbing block has a hollow structure with a positioning perforation at its center, its axis perpendicular to the outer surface of the longitudinal beam. The second energy-absorbing unit is an energy-absorbing bracket arranged within the inner cavity of the longitudinal beam. The energy-absorbing bracket consists of a pair of supporting angle steels welded to the upper and lower surfaces of the inner cavity of the longitudinal beam, and multiple supporting uprights spaced apart between the two supporting angle steels. One side of the supporting upright between the two supporting angle steels is folded over to form a connecting flange welded to the longitudinal beam. The third energy-absorbing unit is a reinforcing plate welded to the inner surface of the longitudinal beam. The upper and lower edges of the reinforcing plate have snap-fit flanges that engage with the longitudinal beam.
2. The non-load-bearing frame longitudinal beam modular collision energy absorption structure according to claim 1, characterized in that: Each side wall of the rectangular energy-absorbing block is provided with an inwardly recessed first energy-dissipating groove, the axis of which is perpendicular to the outer surface of the longitudinal beam of the frame.
3. The non-load-bearing frame longitudinal beam modular collision energy absorption structure according to claim 1, characterized in that: The supporting angle steel is provided with an inwardly recessed second energy dissipation groove. Multiple second energy dissipation grooves are arranged at intervals along the length direction of the supporting angle steel, and the axial direction of each second energy dissipation groove is consistent with the width direction of the supporting angle steel.
4. The non-load-bearing frame longitudinal beam modular collision energy absorption structure according to claim 1, characterized in that: A pair of U-shaped reinforcing plates are provided between two adjacent supporting uprights.
5. The non-load-bearing frame longitudinal beam modular collision energy absorption structure according to claim 1, characterized in that: The reinforcing plate has a third energy dissipation groove protruding outward in the middle. The third energy dissipation groove is vertically arranged, and its upper and lower ends extend to the snap-fit flange.