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 PDF

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Publication number
CN206217824U
CN206217824U CN201621234744.0U CN201621234744U CN206217824U CN 206217824 U CN206217824 U CN 206217824U CN 201621234744 U CN201621234744 U CN 201621234744U CN 206217824 U CN206217824 U CN 206217824U
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China
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energy
absorbing
buffering
collision prevention
prevention girders
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CN201621234744.0U
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Chinese (zh)
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曲杰
胡焱松
徐梁
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South China University of Technology SCUT
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South China University of Technology SCUT
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Abstract

The utility model discloses a kind of multi-buffer energy adsorption type automobile dumper device, including bumper housing, the collision prevention girders being connected with vehicle body, also include the multi-buffer energy absorption device being arranged between the bumper housing and collision prevention girders, the multi-buffer energy absorption device includes the first buffering energy-absorbing component and spread configuration that are filled between bumper housing and collision prevention girders two ends in bumper housing, collision prevention girders, some second buffering energy-absorbing components between first buffering energy-absorbing component, the first buffering energy-absorbing component is mainly sequentially overlapped by some buffering energy-absorbing blocks and formed;The second buffering energy-absorbing component includes that energy-absorbing foam, insertion are fitted in the elastic endergonic piece of energy-absorbing foam bottom.The utility model simple structure, can play the effect of multi-buffer energy-absorbing, effectively reduce the injury to pedestrian, also reduce the injury to passenger on car, easy for installation, cheap, without carrying out repacking by a relatively large margin to automobile, common vehicle is all suitable for.

Description

A kind of multi-buffer energy adsorption type automobile dumper device
Technical field
The utility model is related to a kind of bumper, more particularly to a kind of multi-buffer energy adsorption type automobile dumper dress Put.
Technical background
With developing rapidly for auto industry, China's automobile market keeps steady growth, simultaneously, automobile quantity it is violent Increasing causes China's road traffic accident and takes place frequently, and according to correlation study, the whole world there are about 1,200,000 people in road traffic accident every year Die, wherein pedestrian etc. " vulnerable road user ", account for 46%.Euro-NCAP set up the protection to pedestrian since 2002 Test, promotes automobile production in design, more safety problems for considering pedestrians, and with Euro-NCAP pedestrian protecting in 2009 The instead preceding rating system of crash tests standard;Newest modification is issued on June 30th, 2009 in Chinese Qi Yan centers《C- NCAP management rules(Version in 2009)》When, also propose first after new evaluation rule is implemented, the investigation that C-NCAP is introduced into Mesh includes knock into the back experiment and pedestrian protecting.As pedestrian's Motor Vehicle Safety Standard is constantly improved, to the safe design of automobile also more Plus it is strict.
Bumper is one of important exterior trimming parts of automobile, is a kind of big, the complex-shaped thin-wall construction of surface area Part, not only act as the effect of decoration automobile appearance, even more a kind of absorption relaxes foreign impacts power, the peace before and after protection vehicle body Full device.It is exactly bumper first with the part of pedestrian collision, for maximum when automobile and pedestrian collision Change protection of the raising to pedestrian, and reduce to the injury of passenger on car, it is necessary to bumper system farthest realize it is slow Suction energy.Therefore the buffering energy-absorbing design of bumper is also increasingly paid attention to.
The bumper outer baffle and bumper damping Heng Liang of automobile originally, rely primarily on the damaged deformation of bumper housing To discharge protection of the impulsive force realization to pedestrian, and the deformation of collision prevention girders carrys out wound of the endoergic collision energy reduction to passenger on car Evil.The effect on driving birds is not good of buffering effect and absorption collision energy, it is impossible to play the life of protection pedestrian and protection occupant well Order the effect of safety.
Utility model content
In order to strengthen the protection to pedestrian and occupant, farthest buffering is provided to pedestrian, while reduce clashing into The directly influence to vehicle body, absorbs more energy to improve overall security performance, and the utility model provides a kind of multistage Buffering energy-absorbing formula bumper system, injury when can effectively reduce collision to pedestrian strengthens the protection to pedestrian, while absorbing More energy, reduce the injury to occupant.
The utility model adopts the following technical scheme that realization:
A kind of multi-buffer energy adsorption type automobile dumper device, including bumper housing and the collision prevention girders of vehicle body connection, also Including the multi-buffer energy absorption device being arranged between the bumper housing and collision prevention girders, described multi-buffer energy absorption device Including the first buffering energy-absorbing component being filled between bumper housing and collision prevention girders two ends and spread configuration in bumper Some second buffering energy-absorbing components between housing, collision prevention girders, the first buffering energy-absorbing component, the first described buffering energy-absorbing component Main being sequentially overlapped by some buffering energy-absorbing blocks forms;The second described buffering energy-absorbing component includes energy-absorbing foam, embedded laminating In the elastic endergonic piece of energy-absorbing foam bottom.
Further, gradually passed away from collision prevention girders direction on density and the size edge of each buffering energy-absorbing block being sequentially overlapped Subtract.
Further, the material of described buffering energy-absorbing block is foamed aluminium.
Further, described elastic endergonic piece is that cross section is the honeycomb aluminum plate of M shapes, and its top surface is affixed with energy-absorbing foam Close, bottom surface is arranged in collision prevention girders.
Further, described energy-absorbing foam is polyurethane foam.
Further, A shapes gap is provided between adjacent energy-absorbing foam, when energy-absorbing foam breakdown, due to each bubble There is A shapes gap between foam, can be come in contact between adjacent energy-absorbing foam, the power of generation can be delivered to other positions, The dispersion of strength is realized, while carrying out buffering energy-absorbing using the deformation of energy-absorbing foam to greatest extent.
Further, described collision prevention girders are that cross section is the hollow collision prevention girders of arc of B shapes, using the anticollision of B-section Beam, centre is hollow, and corresponding radian is designed for different automobile types, can mitigate deadweight, moreover it is possible to be effectively ensured certain Crumple stroke and disperses force, realize buffering and energy-absorbing.
Further, described collision prevention girders two ends are connected by energy-absorption box with vehicle body, and energy-absorption box can also occur crumple deformation, Buffering energy-absorbing is carried out simultaneously, protective effect further is served to pedestrian.
Further, the first described buffering energy-absorbing component includes three pieces of buffering energy-absorbing blocks being sequentially overlapped.
Compared to existing technology, what the utility model was reached has the beneficial effect that:
1st, the utility model realizes three-level buffering, and wherein energy-absorbing foam deforms, while top density minimum Buffering energy-absorbing block deforms, and this is first-level buffer energy-absorbing;Deformation occurs when to a certain extent, and the outside of elastic endergonic piece occurs Crumple deforms, while the buffering energy-absorbing block that density is taken second place deforms, this is level 2 buffering;When further deforming, elasticity The interior side contacts collision prevention girders of energy-absorbing piece take place crumple deformation, while the maximum buffering energy-absorbing block of density deforms, this is Three-level is buffered, and being buffered by three-level can discharge larger impulsive force, reduces the injury to pedestrian, it is also possible to reduced to vehicle occupant The injury of member.
2nd, using the hollow collision prevention girders of B shape radians when certain strength and stiffness requirement is ensured, it is also possible to realize vehicle Lightweight, and selected suitable radian design, can also effectively ensure certain crumple stroke and disperses force, realize slow Punching and energy-absorbing, improve the protection to vehicle body, while reducing the injury to occupant.
3rd, A shapes gap is formd between each energy-absorbing foam, when colliding, after there is crumple deformation, adjacent bubble Come in contact between foam, the power of generation can be delivered to other positions, realize the dispersion of strength.
4th, energy-absorbing foam insertion M shape elastic endergonic pieces, when energy-absorbing foam deformation to a certain extent, during deflection very little, inhale Energy foam is broken in the top end of M shape elastic endergonic pieces, there is provided bigger cushion stroke.
5th, the utility model simple structure, it is easy for installation, it is cheap, without carrying out repacking by a relatively large margin to automobile, Common vehicle is all suitable for.
Brief description of the drawings
Fig. 1 is the 3-D solid structure schematic diagram of the utility model embodiment.
Fig. 2 is the schematic front view of the utility model embodiment.
Fig. 3 is the cross-sectional view of the B hollow collision prevention girders of shape radian of the utility model embodiment.
Fig. 4 is the schematic three dimensional views of the M shape honeycomb aluminum plate structures of the utility model embodiment.
Fig. 5 when the utility model embodiment collides to deform schematic diagram.
It is shown in figure:1- bumper housings;2- energy-absorbing foams;3- elastic endergonic pieces;4- the first buffering energy-absorbing blocks;5- Two buffering energy-absorbing blocks;The buffering energy-absorbing blocks of 6- the 3rd;7- collision prevention girders;8- energy-absorption boxes.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating this The technical scheme of utility model, rather than limiting protection domain of the present utility model with this.
Embodiment
As depicted in figs. 1 and 2, a kind of multi-buffer energy adsorption type automobile dumper device, including bumper housing 1 and car The collision prevention girders 7 of body connection, also including the multi-buffer energy absorption device being arranged between the bumper housing 1 and collision prevention girders 7, institute The multi-buffer energy absorption device stated includes the first buffering energy-absorbing being filled between bumper housing 1 and the two ends of collision prevention girders 7 The some second buffering energy-absorbing groups of component and spread configuration between bumper housing 1, collision prevention girders 7, the first buffering energy-absorbing component Part, the first described buffering energy-absorbing component is main to be formed by three block of material for the buffering energy-absorbing block of foamed aluminium is sequentially overlapped, including First buffering energy-absorbing block 4, the second buffering energy-absorbing block 5, the 3rd buffering energy-absorbing block 6;The second described buffering energy-absorbing component includes inhaling Energy foam 2, insertion are fitted in the elastic endergonic piece 3 of the bottom of energy-absorbing foam 2, and described elastic endergonic piece 3 is that cross section is M shapes Honeycomb aluminum plate, is shown in Fig. 4, and its top surface fits with energy-absorbing foam 2, and bottom surface is arranged in collision prevention girders 7, and described energy-absorbing foam 2 is Polyurethane foam.
Specifically, the first buffering energy-absorbing block 4 is in contact with bumper housing 1, the 3rd buffering energy-absorbing block 6 and collision prevention girders 7 Be in contact, the second buffering energy-absorbing block 5 is located between the two, the first buffering energy-absorbing block 4 for being sequentially overlapped, the second buffering energy-absorbing block 5, The density and size of the 3rd buffering energy-absorbing block 6 are gradually successively decreased.
A shapes gap is provided between adjacent energy-absorbing foam 2, when energy-absorbing foam breakdown, due to being deposited between each foam Can be come in contact between A shapes gap, adjacent energy-absorbing foam, the power of generation can be delivered to other positions, realize strength Dispersion, while carrying out buffering energy-absorbing using the deformation of energy-absorbing foam to greatest extent.
As shown in figure 3, it is the hollow collision prevention girders of arc of B shapes that described collision prevention girders 7 are cross section, using the anti-of B-section Beam is hit, centre is hollow, and corresponding radian is designed for different automobile types, can mitigate deadweight, moreover it is possible to be effectively ensured certain Crumple stroke and disperses force, realize buffering and energy-absorbing.
The described two ends of collision prevention girders 7 are connected by energy-absorption box 8 with vehicle body, and energy-absorption box 8 can also occur crumple deformation, while entering Row buffering energy-absorbing, further serves protective effect to pedestrian.
For the multi-buffer energy adsorption type automobile dumper device that the present embodiment is provided, as automobile and pedestrian collision When, the bumper skin 1 of automobile can be clashed into first, and now plastics insurance shell deforms, bumper housing 1 and B shapes The energy-absorbing foam 2 of the polyurethane material between the collision prevention girders 7 of radian hollow-core construction deforms, if impulsive force it is larger when Wait, because the thickness of the foam of M shape cushion top ends is relatively low, when there is certain crumple deformation, foam 2 can be in M shapes elasticity The top of energy-absorbing piece 3 is broken, so that certain buffer distance is produced, as shown in Figure 5.At the same time density less first Buffering energy-absorbing block 4 is larger due to internal void, it may occur that moderate finite deformation, while the second buffering energy-absorbing block 5, the 3rd buffering energy-absorbing block 6 also there is small deformation, are deforming or are bringing certain buffering to pedestrian during energy-absorbing foam 2 is broken, and reduce Injury to pedestrian, while realizing the absorption of collision energy, now realizes first time buffering energy-absorbing.
Deflection with the buffering energy-absorbing block 4 of energy-absorbing foam 2 and first increases, the outside stress hair of M shape elastic endergonics piece 3 Raw crumple deformation, while the foam of the both sides of M shape elastic endergonics piece 3 starts contact, the dispersion of strength, same time-varying are realized in mutually extruding Shape energy-absorbing.Now also stress deforms the second buffering energy-absorbing block 5, and the 3rd buffering energy-absorbing block 6 occurs small deformation, two-part to burst Compression deformation, further brings certain buffering to pedestrian, realizes the absorption of collision energy, realizes secondary buffering energy-absorbing.
Along with the further increase of deflection, after the outside deflection of M shapes honeycomb aluminum plate 3 is reached to a certain degree, M The interior survey beginning of shape elastic endergonic piece 3 is contacted with collision prevention girders 7, crumple deformation further occurs, while the 3rd buffering energy-absorbing block 6 There is larger crumple deformation in stress, now realize the buffering energy-absorbing of third time.
During this, if the contact area between pedestrian and bumper housing 1 is smaller, either which foam is most Crumple deformation takes place or is broken, due to there is A shapes gap between each foam, can be connect between adjacent foam Touch, the power of generation can be delivered to other positions, realize the dispersion of strength, while to greatest extent using polyurethane material The deformation of energy-absorbing foam 2 carries out buffering energy-absorbing.
In whole process, because collision prevention girders 7 are connected by energy-absorption box 8 with vehicle body, energy-absorption box 8 can also occur crumple change Shape, while carrying out buffering energy-absorbing, further serves protective effect to pedestrian.
Cross section can either ensure certain strength and stiffness requirement for the collision prevention girders 7 of the arc hollow-core construction of B shapes, also can The lightweight of vehicle, and selected suitable radian design are enough realized, is being collided, during by greater impact, can be effective Ground ensures certain crumple stroke and disperses force, realizes buffering and energy-absorbing.The protection to vehicle body is improved, while reducing to in-car The injury of personnel.
The multi-buffer energy adsorption type automobile dumper device that the present embodiment is provided, realizes three-level buffering energy-absorbing, by three Level buffering can effectively discharge larger impulsive force, absorb certain collision energy, while reducing to pedestrian injury, The injury to passenger on car is also reduced, the apparatus structure is simple, easy for installation, cheap, larger without being carried out to automobile The repacking of amplitude, is all suitable for common vehicle.
The above is only preferred embodiment of the present utility model, it is noted that for this technology according to another common skill For art personnel, on the premise of the utility model know-why is not departed from, some improvement and deformation can also be made, these change Enter and deform also to should be regarded as protection domain of the present utility model.

Claims (9)

1. multi-buffer energy adsorption type automobile dumper device, including bumper housing(1)The collision prevention girders connected with vehicle body(7), its It is characterised by:Also include being arranged on the bumper housing(1)With collision prevention girders(7)Between multi-buffer energy absorption device,
Described multi-buffer energy absorption device includes being filled with bumper housing(1)And collision prevention girders(7)Between two ends One buffering energy-absorbing component and spread configuration are in bumper housing(1), collision prevention girders(7), it is some between the first buffering energy-absorbing component Second buffering energy-absorbing component, main being sequentially overlapped by some buffering energy-absorbing blocks of the first described buffering energy-absorbing component forms;It is described The second buffering energy-absorbing component include energy-absorbing foam(2), insertion be fitted in energy-absorbing foam(2)The elastic endergonic piece of bottom(3).
2. the multi-buffer energy adsorption type automobile dumper device according to claim 1, it is characterised in that:It is sequentially overlapped The density and size of each buffering energy-absorbing block are along away from collision prevention girders(7)Gradually successively decrease in direction.
3. the multi-buffer energy adsorption type automobile dumper device according to claim 1, it is characterised in that:Described buffering The material of energy absorbent block is foamed aluminium.
4. the multi-buffer energy adsorption type automobile dumper device according to claim 1, it is characterised in that:Described elasticity Energy-absorbing piece(3)For cross section is the honeycomb aluminum plate of M shapes, its top surface and energy-absorbing foam(2)Fit, bottom surface is arranged on collision prevention girders (7)On.
5. the multi-buffer energy adsorption type automobile dumper device according to claim 1, it is characterised in that:Described energy-absorbing Foam(2)It is polyurethane foam.
6. the multi-buffer energy adsorption type automobile dumper device according to claim 1, it is characterised in that:Adjacent energy-absorbing Foam(2)Between be provided with A shapes gap.
7. the multi-buffer energy adsorption type automobile dumper device according to claim 1, it is characterised in that:Described anticollision Beam(7)For cross section is the hollow collision prevention girders of arc of B shapes.
8. multi-buffer energy adsorption type automobile dumper device according to any one of claim 1 to 7, it is characterised in that: Described collision prevention girders(7)Two ends pass through energy-absorption box(8)It is connected with vehicle body.
9. the multi-buffer energy adsorption type automobile dumper device according to claim 1 or 2, it is characterised in that:Described First buffering energy-absorbing component includes three pieces of buffering energy-absorbing blocks being sequentially overlapped.
CN201621234744.0U 2016-11-17 2016-11-17 A kind of multi-buffer energy adsorption type automobile dumper device Withdrawn - After Issue CN206217824U (en)

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CN201621234744.0U CN206217824U (en) 2016-11-17 2016-11-17 A kind of multi-buffer energy adsorption type automobile dumper device

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

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Granted publication date: 20170606

Effective date of abandoning: 20181211