CN206217824U - A kind of multi-buffer energy adsorption type automobile dumper device - Google Patents
A kind of multi-buffer energy adsorption type automobile dumper device Download PDFInfo
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- 238000001179 sorption measurement Methods 0.000 title claims 10
- 239000006260 foam Substances 0.000 claims abstract description 43
- 230000003139 buffering effect Effects 0.000 claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 8
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
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- 206010039203 Road traffic accident Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
本实用新型公开了一种多级缓冲吸能式汽车保险杠装置,包括保险杠壳体、与车身连接的防撞梁,还包括设置在所述保险杠壳体与防撞梁之间的多级缓冲吸能装置,所述多级缓冲吸能装置包括填充设置在保险杠壳体和防撞梁两端之间的第一缓冲吸能组件和排列设置于保险杠壳体、防撞梁、第一缓冲吸能组件之间的若干第二缓冲吸能组件,所述第一缓冲吸能组件主要由若干缓冲吸能块依次叠加而成;所述第二缓冲吸能组件包括吸能泡沫、嵌入贴合在吸能泡沫底部的弹性吸能片。本实用新型结构简单,能够起到多级缓冲吸能的效果,有效的减少对行人的伤害,也降低了对车上乘客的伤害,安装方便,价格便宜,无需对汽车进行较大幅度的改装,对普通车辆都适用。
The utility model discloses a multi-stage buffer energy-absorbing automobile bumper device, which comprises a bumper shell, an anti-collision beam connected with a vehicle body, and a plurality of bumpers arranged between the bumper shell and the anti-collision beam The multi-level buffer energy-absorbing device, the multi-stage buffer energy-absorbing device includes a first buffer energy-absorbing assembly arranged between the two ends of the bumper shell and the anti-collision beam and arranged in the bumper shell, the anti-collision beam, Several second energy-absorbing buffer components between the first energy-absorbing buffer components, the first energy-absorbing buffer components are mainly composed of several energy-absorbing buffer blocks stacked in sequence; the second energy-absorbing buffer components include energy-absorbing foam, Embedded elastic energy-absorbing sheet fits snugly on the bottom of the energy-absorbing foam. The utility model has a simple structure, can play the effect of multi-stage buffering and energy absorption, effectively reduces the damage to pedestrians, and also reduces the damage to passengers in the car, is easy to install, and the price is cheap, and there is no need for large-scale refitting of the car , are applicable to ordinary vehicles.
Description
技术领域technical field
本实用新型涉及一种汽车保险杠,尤其涉及一种多级缓冲吸能式汽车保险杠装置。The utility model relates to an automobile bumper, in particular to a multistage buffer energy-absorbing automobile bumper device.
技术背景technical background
随着汽车工业的迅速发展,我国汽车市场保持稳定增长,于此同时,汽车数量的猛增造成了我国道路交通事故频发,根据相关调查,全球每年约有120万人在道路交通事故中丧生,其中行人等“弱势道路使用者”,占到46%。欧洲NCAP从2002年开始增设对行人的保护测试,促使汽车生产在设计上,更多的考虑行人的安全问题,并与2009年欧洲NCAP行人保护碰撞测试标准替代之前的评级系统;中国汽研中心在2009年6月30日发布最新修改的《C-NCAP管理规则(2009年版)》时,也首次提出在新的评价规则实施后,C-NCAP将引入的考察项目包括追尾试验和行人保护。随着行人汽车安全标准不断地提高,对汽车的安全设计也更加的严格。With the rapid development of the automobile industry, my country's automobile market has maintained a steady growth. At the same time, the rapid increase in the number of automobiles has caused frequent road traffic accidents in my country. According to relevant surveys, about 1.2 million people die in road traffic accidents worldwide every year. , of which "vulnerable road users" such as pedestrians accounted for 46%. Euro NCAP has added pedestrian protection tests since 2002, prompting car production to give more consideration to pedestrian safety issues in the design, and replaced the previous rating system with the 2009 Euro NCAP pedestrian protection crash test standards; China Automotive Research Center When the newly revised "C-NCAP Management Rules (2009 Edition)" was released on June 30, 2009, it was also proposed for the first time that after the implementation of the new evaluation rules, the inspection items that C-NCAP will introduce include rear-end collision tests and pedestrian protection. With the continuous improvement of pedestrian vehicle safety standards, the safety design of vehicles is also more stringent.
汽车保险杠是汽车的重要的外饰件之一,是一种表面积大,形状复杂的薄壁结构的件,不仅起到装饰汽车外观的作用,更是一种吸收缓和外界冲击力的,保护车身前后的安全装置。当汽车与行人发生碰撞时,首先与行人发生碰撞的部分就是汽车保险杠,为了最大的化的提高对行人的保护,并减小对车上乘客的伤害,需要保险杠装置最大程度的实现缓冲吸能。因此汽车保险杠的缓冲吸能设计也越来越得到重视。Automobile bumper is one of the important exterior parts of automobiles. It is a thin-walled part with large surface area and complex shape. Safety devices at the front and rear of the body. When a car collides with a pedestrian, the first part that collides with the pedestrian is the car bumper. In order to maximize the protection of the pedestrian and reduce the damage to the passengers on the car, the bumper device is required to achieve maximum buffering. absorb energy. Therefore, the buffer energy-absorbing design of automobile bumpers has also been paid more and more attention.
原来的汽车的保险杠外挡板和保险杠减震衡梁,主要依靠保险杠壳体的破坏变形来释放冲击力实现对行人的保护,以及防撞梁的变形来吸能碰撞能量减少对车上乘客的伤害。缓冲效果和吸收碰撞能量的效果不佳,不能很好的起到保护行人和保护车内人员的生命安全的作用。The original bumper outer baffle and bumper shock-absorbing balance beam of the original car mainly rely on the damage and deformation of the bumper shell to release the impact force to protect pedestrians, and the deformation of the anti-collision beam to absorb energy and reduce the impact on the vehicle. Injury to passengers. The cushioning effect and the effect of absorbing collision energy are not good, and it cannot play a good role in protecting pedestrians and protecting the lives of people in the car.
实用新型内容Utility model content
为了增强对行人和车内人员的保护,给行人提供最大程度的缓冲,同时降低撞击直接对车身的影响,吸收更多的能量来提高整体的安全性能,本实用新型提供了一种多级缓冲吸能式保险杠装置,能有效的减少碰撞时对行人的伤害,增强对行人的保护,同时吸收更多的能量,降低对车内人员的伤害。In order to enhance the protection of pedestrians and people in the car, provide pedestrians with the greatest degree of buffering, reduce the direct impact of impact on the vehicle body, and absorb more energy to improve the overall safety performance, the utility model provides a multi-stage buffering The energy-absorbing bumper device can effectively reduce the damage to pedestrians during a collision, enhance the protection of pedestrians, and absorb more energy at the same time to reduce the damage to people in the car.
本实用新型采用如下技术方案实现:The utility model adopts following technical scheme to realize:
一种多级缓冲吸能式汽车保险杠装置,包括保险杠壳体、与车身连接的防撞梁,还包括设置在所述保险杠壳体与防撞梁之间的多级缓冲吸能装置,所述的多级缓冲吸能装置包括填充设置在保险杠壳体和防撞梁两端之间的第一缓冲吸能组件和排列设置于保险杠壳体、防撞梁、第一缓冲吸能组件之间的若干第二缓冲吸能组件,所述的第一缓冲吸能组件主要由若干缓冲吸能块依次叠加而成;所述的第二缓冲吸能组件包括吸能泡沫、嵌入贴合在吸能泡沫底部的弹性吸能片。A multi-stage buffer energy-absorbing automobile bumper device, including a bumper shell, an anti-collision beam connected to a vehicle body, and a multi-stage buffer energy-absorbing device arranged between the bumper shell and the anti-collision beam , the multi-stage energy-absorbing buffer device includes a first energy-absorbing energy-absorbing component filled between the two ends of the bumper shell and the anti-collision beam and arranged in the bumper shell, the anti-collision beam, the first energy-absorbing buffer Several second energy-absorbing buffer components between the energy-absorbing components, the first energy-absorbing buffer components are mainly composed of several energy-absorbing buffer blocks stacked in sequence; the second energy-absorbing buffer components include energy-absorbing foam, embedded stickers Elastic energy-absorbing sheet fit over the bottom of the energy-absorbing foam.
进一步地,依次叠加的各个缓冲吸能块的密度和尺寸沿远离防撞梁方向逐渐递减。Further, the density and size of each successively stacked energy-absorbing buffer block gradually decreases along the direction away from the anti-collision beam.
进一步地,所述的缓冲吸能块的材料为泡沫铝。Further, the material of the cushioning energy-absorbing block is aluminum foam.
进一步地,所述的弹性吸能片为横截面为M形的蜂窝铝板,其顶面与吸能泡沫相贴合,底面安装在防撞梁上。Further, the elastic energy-absorbing sheet is a honeycomb aluminum plate with an M-shaped cross-section, its top surface is attached to the energy-absorbing foam, and its bottom surface is installed on the anti-collision beam.
进一步地,所述的吸能泡沫为聚氨酯泡沫。Further, the energy-absorbing foam is polyurethane foam.
进一步地,相邻的吸能泡沫之间设置有A形间隙,当吸能泡沫断裂时,由于每个泡沫之间存在A形间隙,相邻的吸能泡沫之间会发生接触,能够将产生的力传递到其他位置,实现力量的分散,同时最大限度的利用吸能泡沫的变形进行缓冲吸能。Further, there is an A-shaped gap between adjacent energy-absorbing foams. When the energy-absorbing foam breaks, since there is an A-shaped gap between each foam, contact will occur between adjacent energy-absorbing foams, which can generate The force is transmitted to other positions to realize the distribution of force, and at the same time, the deformation of the energy-absorbing foam is used to the maximum extent for cushioning and energy absorption.
进一步地,所述的防撞梁为横截面为B形的弧形空心防撞梁,采用B形截面的防撞梁,中间为空心的,针对不同车型设计出相应的弧度,既能减轻自重,还能有效保证一定的溃缩行程和力量分散,实现缓冲和吸能。Further, the anti-collision beam is an arc-shaped hollow anti-collision beam with a B-shaped cross-section. The anti-collision beam with a B-shaped cross-section is hollow in the middle. Corresponding radians are designed for different models, which can reduce the weight , can also effectively guarantee a certain collapse stroke and force dispersion, and realize cushioning and energy absorption.
进一步地,所述的防撞梁两端通过吸能盒与车身连接,吸能盒也会发生溃缩变形,同时进行缓冲吸能,进一步对行人起到了保护作用。Further, the two ends of the anti-collision beam are connected to the vehicle body through the energy-absorbing box, and the energy-absorbing box will also collapse and deform, and at the same time perform buffering and absorbing energy, further protecting pedestrians.
进一步地,所述的第一缓冲吸能组件包括三块依次叠加的缓冲吸能块。Further, the first energy-absorbing buffer assembly includes three energy-absorbing buffer blocks stacked one after the other.
相比现有技术,本实用新型所达到的有益效果如下:Compared with the prior art, the beneficial effects achieved by the utility model are as follows:
1、本实用新型实现了三级缓冲,其中吸能泡沫发生变形,同时最顶部密度最小的缓冲吸能块发生变形,此为一级缓冲吸能;变形发生到一定程度时,弹性吸能片的外侧发生溃缩变形,同时密度次之的缓冲吸能块发生变形,此为二级缓冲;进一步发生变形时,弹性吸能片的内侧接触防撞梁开始发生溃缩变形,同时密度最大的缓冲吸能块发生变形,此为三级缓冲,通过三级缓冲能够释放较大的冲击力,降低对行人的伤害,也可以降低对车内人员的伤害。1. The utility model realizes three-level buffering, in which the energy-absorbing foam deforms, and at the same time, the energy-absorbing block with the lowest density at the top deforms, which is the first-level buffering and energy-absorbing; when the deformation occurs to a certain extent, the elastic energy-absorbing sheet The outer side of the elastic energy-absorbing sheet collapses and deforms, and at the same time, the cushioning energy-absorbing block with the second density deforms, which is the second-level buffering; The buffer energy-absorbing block is deformed. This is a three-level buffer. Through the three-level buffer, it can release a large impact force, reduce the damage to pedestrians, and also reduce the damage to people in the car.
2、采用B形弧度空心防撞梁在保证一定的强度和刚度要求时,也能够实现车辆的轻量化,而且选定合适的弧度设计,还可以有效地保证一定的溃缩行程和力量分散,实现缓冲和吸能,提高对车身的保护,同时降低对车内人员的伤害。2. The B-shaped radian hollow anti-collision beam can also realize the lightweight of the vehicle while ensuring a certain strength and rigidity requirements, and the selection of a suitable radian design can also effectively ensure a certain collapse stroke and force dispersion. Realize cushioning and energy absorption, improve the protection of the vehicle body, and reduce the damage to the occupants at the same time.
3、每个吸能泡沫之间形成了A形间隙,当发生碰撞时,发生溃缩变形后,相邻的泡沫之间发生接触,能够将产生的力传递到其他位置,实现力量的分散。3. An A-shaped gap is formed between each energy-absorbing foam. When a collision occurs, after collapse and deformation, adjacent foams come into contact, and the generated force can be transmitted to other positions to realize force dispersion.
4、吸能泡沫嵌入M形弹性吸能片,当吸能泡沫变形到一定程度,变形量很小时,吸能泡沫在M形弹性吸能片的顶端处发生断裂,提供更大的缓冲行程。4. The energy-absorbing foam is embedded in the M-shaped elastic energy-absorbing sheet. When the energy-absorbing foam deforms to a certain extent and the deformation is small, the energy-absorbing foam breaks at the top of the M-shaped elastic energy-absorbing sheet, providing a larger buffer stroke.
5、本实用新型结构简单,安装方便,价格便宜,无需对汽车进行较大幅度的改装,对普通车辆都适用。5. The utility model has the advantages of simple structure, convenient installation and low price, and it is not necessary to refit the automobile to a large extent, and is applicable to ordinary vehicles.
附图说明Description of drawings
图1为本实用新型实施例的三维立体结构示意图。Fig. 1 is a schematic diagram of a three-dimensional structure of an embodiment of the present invention.
图2为本实用新型实施例的主视示意图。Fig. 2 is a schematic front view of an embodiment of the utility model.
图3为本实用新型实施例的B形弧度空心防撞梁的横截面示意图。Fig. 3 is a schematic cross-sectional view of a B-shaped radian hollow anti-collision beam according to an embodiment of the present invention.
图4为本实用新型实施例的M形蜂窝铝板结构的三维示意图。Fig. 4 is a three-dimensional schematic diagram of the M-shaped honeycomb aluminum panel structure of the embodiment of the present invention.
图5为本实用新型实施例发生碰撞时变形示意图。Fig. 5 is a schematic diagram of the deformation of the embodiment of the utility model when a collision occurs.
图中所示为:1-保险杠壳体;2-吸能泡沫;3-弹性吸能片;4-第一缓冲吸能块;5-第二缓冲吸能块;6-第三缓冲吸能块;7-防撞梁;8-吸能盒。As shown in the figure: 1-bumper shell; 2-energy-absorbing foam; 3-elastic energy-absorbing sheet; 4-first energy-absorbing buffer block; 5-second energy-absorbing buffer block; 6-third energy-absorbing buffer energy block; 7-anti-collision beam; 8-energy-absorbing box.
具体实施方式detailed description
下面结合附图对本实用新型作进一步描述。以下实施例仅用于更加清楚地说明本实用新型的技术方案,而不是以此来限制本实用新型的保护范围。Below in conjunction with accompanying drawing, the utility model is further described. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present invention.
实施例Example
如图1和图2所示,一种多级缓冲吸能式汽车保险杠装置,包括保险杠壳体1、与车身连接的防撞梁7,还包括设置在所述保险杠壳体1与防撞梁7之间的多级缓冲吸能装置,所述的多级缓冲吸能装置包括填充设置在保险杠壳体1和防撞梁7两端之间的第一缓冲吸能组件和排列设置于保险杠壳体1、防撞梁7、第一缓冲吸能组件之间的若干第二缓冲吸能组件,所述的第一缓冲吸能组件主要由三块材料为泡沫铝的缓冲吸能块依次叠加而成,包括第一缓冲吸能块4、第二缓冲吸能块5、第三缓冲吸能块6;所述的第二缓冲吸能组件包括吸能泡沫2、嵌入贴合在吸能泡沫2底部的弹性吸能片3,所述的弹性吸能片3为横截面为M形的蜂窝铝板,见图4,其顶面与吸能泡沫2相贴合,底面安装在防撞梁7上,所述的吸能泡沫2为聚氨酯泡沫。As shown in Figures 1 and 2, a multi-stage buffer energy-absorbing automobile bumper device includes a bumper shell 1, an anti-collision beam 7 connected to the vehicle body, and also includes a The multi-stage buffer energy-absorbing device between the anti-collision beam 7, the multi-stage buffer energy-absorbing device includes the first buffer energy-absorbing assembly and arrangement arranged between the bumper shell 1 and the two ends of the anti-collision beam 7 A number of second energy-absorbing energy-absorbing assemblies arranged between the bumper shell 1, the anti-collision beam 7, and the energy-absorbing energy-absorbing assembly of the first energy-absorbing energy-absorbing assembly mainly consist of three pieces of energy-absorbing energy-absorbing elements made of foamed aluminum. The energy blocks are stacked in sequence, including the first energy-absorbing buffer block 4, the second energy-absorbing buffer block 5, and the third energy-absorbing buffer block 6; the second energy-absorbing buffer component includes energy-absorbing foam 2, embedded The elastic energy-absorbing sheet 3 at the bottom of the energy-absorbing foam 2, the elastic energy-absorbing sheet 3 is an M-shaped honeycomb aluminum plate in cross section, as shown in Fig. 4, its top surface fits with the energy-absorbing foam 2, and the bottom surface is installed on On the anti-collision beam 7, the energy-absorbing foam 2 is polyurethane foam.
具体而言,第一缓冲吸能块4与保险杠壳体1相接触,第三缓冲吸能块6与防撞梁7相接触,第二缓冲吸能块5位于两者之间,依次叠加的第一缓冲吸能块4、第二缓冲吸能块5、第三缓冲吸能块6的密度和尺寸逐渐递减。Specifically, the first energy-absorbing buffer 4 is in contact with the bumper shell 1, the third energy-absorbing buffer 6 is in contact with the anti-collision beam 7, and the second energy-absorbing buffer 5 is located between the two, stacked in sequence The density and size of the first energy-absorbing buffer 4, the energy-absorbing second buffer 5, and the third energy-absorbing buffer 6 gradually decrease.
相邻的吸能泡沫2之间设置有A形间隙,当吸能泡沫断裂时,由于每个泡沫之间存在A形间隙,相邻的吸能泡沫之间会发生接触,能够将产生的力传递到其他位置,实现力量的分散,同时最大限度的利用吸能泡沫的变形进行缓冲吸能。A-shaped gaps are arranged between adjacent energy-absorbing foams 2. When the energy-absorbing foams break, due to the existence of A-shaped gaps between each foam, contact will occur between adjacent energy-absorbing foams, and the generated force can be Transfer to other positions to realize the distribution of force, and at the same time make maximum use of the deformation of the energy-absorbing foam for cushioning and energy absorption.
如图3所示,所述的防撞梁7为横截面为B形的弧形空心防撞梁,采用B形截面的防撞梁,中间为空心的,针对不同车型设计出相应的弧度,既能减轻自重,还能有效保证一定的溃缩行程和力量分散,实现缓冲和吸能。As shown in Figure 3, the anti-collision beam 7 is an arc-shaped hollow anti-collision beam with a B-shaped cross section. The anti-collision beam with a B-shaped cross-section is hollow in the middle, and corresponding radians are designed for different vehicle types. It can not only reduce its own weight, but also effectively ensure a certain collapse stroke and force distribution, so as to realize cushioning and energy absorption.
所述的防撞梁7两端通过吸能盒8与车身连接,吸能盒8也会发生溃缩变形,同时进行缓冲吸能,进一步对行人起到了保护作用。The two ends of the anti-collision beam 7 are connected to the vehicle body through the energy-absorbing box 8, and the energy-absorbing box 8 also collapses and deforms, and at the same time performs buffering and absorbing energy, further protecting pedestrians.
针对本实施例提供的多级缓冲吸能式汽车保险杠装置,当汽车与行人发生碰撞时,汽车的保险杠外壳1首先会受到撞击,此时塑料保险外壳发生变形,保险杠壳体1和B形弧度空心结构的防撞梁7之间的聚氨酯材料的吸能泡沫2发生变形,如果冲击力较大的时候,由于M形缓冲物顶端处的泡沫的厚度较低,发生一定的溃缩变形时,泡沫2会在M形弹性吸能片3的顶端发生断裂,从而产生一定的缓冲距离,如图5所示。与此同时密度较小的第一缓冲吸能块4由于内部孔隙较大,会发生较大变形,同时第二缓冲吸能块5、第三缓冲吸能块6也发生小变形,在发生变形或吸能泡沫2发生断裂的过程中给行人带来一定的缓冲,减小了对行人的伤害,同时实现碰撞能量的吸收,此时实现了第一次缓冲吸能。For the multi-stage buffer energy-absorbing automobile bumper device provided in this embodiment, when the automobile collides with pedestrians, the bumper shell 1 of the automobile will be impacted at first, and at this time, the plastic insurance shell is deformed, and the bumper shell 1 and the The energy-absorbing foam 2 of polyurethane material between the anti-collision beams 7 of the B-shaped radian hollow structure deforms. If the impact force is large, the thickness of the foam at the top of the M-shaped buffer is relatively low, and a certain amount of collapse occurs. When deformed, the foam 2 will break at the top of the M-shaped elastic energy-absorbing sheet 3, thereby generating a certain buffer distance, as shown in FIG. 5 . At the same time, the first energy-absorbing buffer block 4 with a lower density will be greatly deformed due to the large internal pores, and the second energy-absorbing block 5 and the third energy-absorbing block 6 will also undergo small deformations. Or when the energy-absorbing foam 2 breaks, it can provide a certain amount of cushioning to the pedestrian, reducing the damage to the pedestrian, and at the same time realizing the absorption of collision energy. At this time, the first buffering energy absorption is realized.
随着吸能泡沫2和第一缓冲吸能块4的变形量增大,M形弹性吸能片3的外侧受力发生溃缩变形,同时M形弹性吸能片3两侧的泡沫开始接触,相互挤压实现力量的分散,同时变形吸能。此时第二缓冲吸能块5也受力发生变形,第三缓冲吸能块6发生小变形,两部分的溃缩变形,进一步给行人带来一定的缓冲,实现碰撞能量的吸收,实现第二次的缓冲吸能。As the deformation of the energy-absorbing foam 2 and the first cushioning energy-absorbing block 4 increases, the outer side of the M-shaped elastic energy-absorbing sheet 3 is crushed and deformed, and at the same time, the foams on both sides of the M-shaped elastic energy-absorbing sheet 3 begin to contact , Extrude each other to realize the dispersion of force, and deform and absorb energy at the same time. At this time, the second energy-absorbing buffer 5 is also deformed under force, and the third energy-absorbing buffer 6 is slightly deformed, and the collapse and deformation of the two parts further bring a certain buffer to the pedestrian, realize the absorption of collision energy, and realize the first collision. Secondary buffer energy absorption.
伴随着变形量的进一步增大,当M形蜂窝铝板3的外侧变形量到达一定程度之后,M形弹性吸能片3的内测开始与防撞梁7接触,进一步发生溃缩变形,同时第三缓冲吸能块6也受力发生较大的溃缩变形,此时实现第三次的缓冲吸能。With the further increase of the deformation amount, when the outer deformation amount of the M-shaped honeycomb aluminum panel 3 reaches a certain level, the inner side of the M-shaped elastic energy-absorbing sheet 3 starts to contact the anti-collision beam 7, and further collapse and deformation occur. The three buffer energy-absorbing blocks 6 are also subjected to a larger collapse and deformation, and at this time, the third buffer energy-absorbing is realized.
在这过程中,如果行人与保险杠壳体1之间的接触面积较小,无论是哪一个泡沫最开始发生溃缩变形或者断裂,由于每个泡沫之间存在A形间隙,相邻的泡沫之间会发生接触,能够将产生的力传递到其他位置,实现力量的分散,同时最大限度的利用聚氨酯材料的吸能泡沫2的变形进行缓冲吸能。In this process, if the contact area between the pedestrian and the bumper shell 1 is small, no matter which foam first collapses or breaks, due to the A-shaped gap between each foam, the adjacent foam There will be contact between them, and the generated force can be transmitted to other positions to realize the dispersion of force, and at the same time, the deformation of the energy-absorbing foam 2 made of polyurethane material can be used to the maximum for cushioning and energy absorption.
在整个过程中,由于防撞梁7通过吸能盒8与车身连接,吸能盒8也会发生溃缩变形,同时进行缓冲吸能,进一步地对行人起到了保护作用。During the whole process, since the anti-collision beam 7 is connected with the vehicle body through the energy-absorbing box 8, the energy-absorbing box 8 will also collapse and deform, and at the same time perform buffering and absorbing energy, further protecting pedestrians.
横截面为B形的弧形空心结构的防撞梁7既能够保证一定的强度和刚度要求,也能够实现车辆的轻量化,而且选定合适的弧度设计,在发生碰撞,受到较大冲击时,可以有效地保证一定的溃缩行程和力量分散,实现缓冲和吸能。提高对车身的保护,同时降低对车内人员的伤害。The anti-collision beam 7 with a B-shaped arc-shaped hollow structure can not only ensure a certain strength and rigidity requirements, but also realize the lightweight of the vehicle, and select a suitable arc design. , can effectively guarantee a certain collapse stroke and force dispersion, and realize cushioning and energy absorption. Improve the protection of the body while reducing the damage to the occupants.
本实施例提供的多级缓冲吸能式汽车保险杠装置,实现了三级缓冲吸能,通过三级缓冲能够有效的释放较大的冲击力,吸收一定的碰撞能量,来在降低对行人伤害的同时,也降低了对车上乘客的伤害,该装置结构简单,安装方便,价格便宜,无需对汽车进行较大幅度的改装,对普通车辆都适用。The multi-stage buffer energy-absorbing automobile bumper device provided in this embodiment realizes three-stage buffer energy absorption, which can effectively release a relatively large impact force and absorb a certain amount of collision energy through the three-stage buffer to reduce injuries to pedestrians. At the same time, it also reduces the damage to the passengers on the car. The device has a simple structure, is convenient to install, and is cheap in price. It does not need to be significantly refitted on the car, and is applicable to ordinary vehicles.
以上所述仅是本实用新型的优选实施方式,应当指出,对于本技术另据的普通技术人员来说,在不脱离本实用新型技术原理的前提下,还可以做出若干改进和变形,这些改进和变形也应视为本实用新型的保护范围。The above is only a preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and deformations can also be made. Improvements and deformations should also be regarded as the protection scope of the present utility model.
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106427846A (en) * | 2016-11-17 | 2017-02-22 | 华南理工大学 | Multi-stage buffer energy-absorbing type automobile bumper device |
CN107521445A (en) * | 2017-06-28 | 2017-12-29 | 苏州英利汽车部件有限公司 | A kind of multilayer buffer-oriented vehicle front bumper arrangement |
CN107963043A (en) * | 2017-11-23 | 2018-04-27 | 陕西科技大学 | A kind of three-stage combined vehicle collision integrated system and method |
CN109131172A (en) * | 2018-10-26 | 2019-01-04 | 山东舜晟冲压科技股份有限公司 | A kind of anticollision bumper of car |
CN110816451A (en) * | 2019-11-04 | 2020-02-21 | 阜阳东胜汽车零部件有限责任公司 | Anti-collision energy-absorbing automobile bumper |
CN112406759A (en) * | 2020-12-23 | 2021-02-26 | 湖州力椿汽车零部件有限公司 | Multistage buffering lightweight bumper |
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2016
- 2016-11-17 CN CN201621234744.0U patent/CN206217824U/en not_active Withdrawn - After Issue
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106427846A (en) * | 2016-11-17 | 2017-02-22 | 华南理工大学 | Multi-stage buffer energy-absorbing type automobile bumper device |
CN107521445A (en) * | 2017-06-28 | 2017-12-29 | 苏州英利汽车部件有限公司 | A kind of multilayer buffer-oriented vehicle front bumper arrangement |
CN107963043A (en) * | 2017-11-23 | 2018-04-27 | 陕西科技大学 | A kind of three-stage combined vehicle collision integrated system and method |
CN107963043B (en) * | 2017-11-23 | 2021-04-06 | 陕西科技大学 | Three-level combined vehicle collision integration system and method |
CN109131172A (en) * | 2018-10-26 | 2019-01-04 | 山东舜晟冲压科技股份有限公司 | A kind of anticollision bumper of car |
CN110816451A (en) * | 2019-11-04 | 2020-02-21 | 阜阳东胜汽车零部件有限责任公司 | Anti-collision energy-absorbing automobile bumper |
CN110816451B (en) * | 2019-11-04 | 2021-09-14 | 阜阳东胜汽车零部件有限责任公司 | Anti-collision energy-absorbing automobile bumper |
CN112406759A (en) * | 2020-12-23 | 2021-02-26 | 湖州力椿汽车零部件有限公司 | Multistage buffering lightweight bumper |
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