CN106427841A - Automobile bumper system - Google Patents
Automobile bumper system Download PDFInfo
- Publication number
- CN106427841A CN106427841A CN201610989058.2A CN201610989058A CN106427841A CN 106427841 A CN106427841 A CN 106427841A CN 201610989058 A CN201610989058 A CN 201610989058A CN 106427841 A CN106427841 A CN 106427841A
- Authority
- CN
- China
- Prior art keywords
- foamed aluminium
- cover plate
- outer cover
- lining part
- bumper system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/03—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses an automobile bumper system. The automobile bumper system comprises an outermost organic material outer cover plate, wherein the outer cover plate is provided with a foamed aluminum/graphene composite lining part; the lining part is mounted on a metal cross beam; the metal cross beam is mounted on a vehicle body by a bracket. The bumper system disclosed by the invention is good in energy absorbing effect and high in reliability, and has no motion component.
Description
Technical field
The present invention relates to automobile technical field, more particularly, to a kind of bumper system for vehicles.
Background technology
Bumper assembly is the important component part of body of a motor car.It act as sending out with other vehicles or barrier when vapour year
Passenger safety can be protected during raw collision, reduce the car body extent of damage.Bumper assembly energy apparatus with shock absorbing during minor accident, so
Automatically restore to the original state afterwards, significantly reduce the cost of repairs of automobile.When meeting serious car accident, impulsive force is through bumper
System is reasonably disperseed to vehicle body, to avoid regional area deformation excessive it is ensured that passenger has enough vivospheries.
The species of bumper is a lot, is roughly divided into three classes by its version：
The first kind is that version is simple, the bumper of lower-cost simple nonmetallic materials, can be directly solid with bolt
Dingan County is attached on the bracket of vehicle body.The buffering energy-absorbing ability of such bumper is poor, is often equipped with keeping out economy car.
Equations of The Second Kind is generally made up of whippletree and buffering energy-absorbing part and reinforcement etc., during this kind of bumper is typically mounted at,
On low-grade automobile.
3rd class then carries buffer, is provided with buffer between bumper transverse bar and body bottom longeron,
The version of buffer is various, but is using hydraulic pressure or pneumatic shock absorbing mostly, has moving component.
Make a general survey of above-mentioned bumper assembly, the bumper assembly energy-absorbing effect with buffer is outstanding, performance is best, but
Its price is high, has moving component, therefore its reliability is relatively low simultaneously.And the one or two class is because of the birth defect of structure, energy-absorbing
Effect is poor.How to utilize material behavior, design has the bumper assembly with buffer that matches in excellence or beauty, simultaneously structure letter again
Single, reliability is high, is the technical barrier that this area faces.
Content of the invention
It is an object of the invention to proposing a kind of bumper assembly, its energy-absorbing effect is good, does not have moving component, reliability
High.
For reaching this purpose, the present invention employs the following technical solutions：
A kind of bumper assembly, it includes the outer cover plate of outmost organic material, is equipped with foamed aluminium/stone after outer cover plate
Black alkene compound lining part, inner piece is arranged in metal beam, and metal beam is installed on car body by bracket.
Foamed aluminium belongs to porous metal material, and its aluminum substrate is contained within a large amount of structures and the controlled hole of distribution, its be with
Hole (air) is as the composite of compound phase.When foamed aluminium is compressed, it assumed elasticity before this, and appearance one is long then
Long platform, at this moment strain increases very big and stress nearly constant constant (plasticity subsidence area), and last platform cell wall is compressed in
Together, material is compacted, and stress is again rapid to be increased.Therefore foamed aluminium is good energy-absorbing material, and its energy-absorbing occurs mainly in
Platform phase.Because foam metal is in compression process, after the elastic deformation of very little, it is put into a very long stress and puts down
Platform, this platform is longer, and under less stress, material just can absorb bigger energy.But the increase with density of material, puts down
Platform stress increases therewith, and platform also shortens therewith.So the energy absorption ability of foamed materialss is closely related with density.
In the research of existing foamed aluminium, typically adopt foamed aluminium sandwich structure, such as foam aluminium sandwich beam.Described foam
Although aluminum sandwich structure energy-absorbing effect is good, it prepares sandwich structure with foamed aluminium, and technique is complex.Therefore the present invention is led to
Crossing material modification enables foamed aluminium to reach the effect of sandwich structure, make again relatively simple, can effective alternative structure complexity
Bumper assembly with buffer.
The present invention adds the Graphene of 2-10wt% in aluminum, is then prepared into foamed aluminium again, obtains the present invention's
Foamed aluminium/Graphene compound lining part.Due to more taller than best steel 200 times of the fracture strength of Graphene.It is again simultaneously
There is good elasticity, stretch range can reach the 20% of own dimensions.Its density is much smaller than aluminum simultaneously.Therefore it is doped to aluminum
After being prepared into foamed aluminium in material, its density diminishes, and plateau stress is elongated, simultaneously because after doped graphene, foamed aluminium elasticity
Uprise, its plateau stress length of side.The energy absorption ability of foamed aluminium is therefore increased by two aspects.
Therefore, after plastic bumper being placed in the foamed aluminium of the present invention/Graphene compound lining part, you can play band slow
Eat up part of the effect of shake structural bumper.
Specific embodiment
To further illustrate technical scheme below by specific embodiment.
Embodiment 1
A kind of bumper assembly, it includes the outer cover plate of outmost organic material, is equipped with foamed aluminium/stone after outer cover plate
Black alkene compound lining part, inner piece is arranged in metal beam, and metal beam is installed on car body by bracket.Described foam
In aluminum/Graphene compound lining part, Graphene content is 2%.
Embodiment 2
A kind of bumper assembly, it includes the outer cover plate of outmost organic material, is equipped with foamed aluminium/stone after outer cover plate
Black alkene compound lining part, inner piece is arranged in metal beam, and metal beam is installed on car body by bracket.Described foam
In aluminum/Graphene compound lining part, Graphene content is 5%.
Embodiment 3
A kind of bumper assembly, it includes the outer cover plate of outmost organic material, is equipped with foamed aluminium/stone after outer cover plate
Black alkene compound lining part, inner piece is arranged in metal beam, and metal beam is installed on car body by bracket.Described foam
In aluminum/Graphene compound lining part, Graphene content is 10%.
Claims (2)
1. a kind of bumper assembly, it includes the outer cover plate of outmost organic material, is equipped with foamed aluminium/graphite after outer cover plate
Alkene compound lining part, inner piece is arranged in metal beam, and metal beam is installed on car body by bracket.
2. bumper assembly as claimed in claim 1 it is characterised in that in aluminum add 2-10wt% Graphene,
Then it is prepared into foamed aluminium again, obtain described foamed aluminium/Graphene compound lining part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989058.2A CN106427841A (en) | 2016-11-10 | 2016-11-10 | Automobile bumper system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989058.2A CN106427841A (en) | 2016-11-10 | 2016-11-10 | Automobile bumper system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106427841A true CN106427841A (en) | 2017-02-22 |
Family
ID=58208352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989058.2A Pending CN106427841A (en) | 2016-11-10 | 2016-11-10 | Automobile bumper system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106427841A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4283822B2 (en) * | 2006-06-13 | 2009-06-24 | 株式会社カネカ | Manufacturing method of core material for automobile bumper |
| CN101590835A (en) * | 2009-06-30 | 2009-12-02 | 哈尔滨工业大学 | Federal bumper based on shape-memory material |
| KR101022561B1 (en) * | 2008-11-03 | 2011-03-16 | 손송남 | Vehicle bumper where the shock absorber which uses the permanent magnet and the electromagnet is established |
| US8876179B2 (en) * | 2012-02-01 | 2014-11-04 | Sabic Global Technologies B.V. | Energy absorbing assembly and methods of making and using the same |
| CN104862517A (en) * | 2015-04-14 | 2015-08-26 | 柳培健 | Energy-absorbing foam aluminum material for manufacturing vehicle bumper |
-
2016
- 2016-11-10 CN CN201610989058.2A patent/CN106427841A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4283822B2 (en) * | 2006-06-13 | 2009-06-24 | 株式会社カネカ | Manufacturing method of core material for automobile bumper |
| KR101022561B1 (en) * | 2008-11-03 | 2011-03-16 | 손송남 | Vehicle bumper where the shock absorber which uses the permanent magnet and the electromagnet is established |
| CN101590835A (en) * | 2009-06-30 | 2009-12-02 | 哈尔滨工业大学 | Federal bumper based on shape-memory material |
| US8876179B2 (en) * | 2012-02-01 | 2014-11-04 | Sabic Global Technologies B.V. | Energy absorbing assembly and methods of making and using the same |
| CN104862517A (en) * | 2015-04-14 | 2015-08-26 | 柳培健 | Energy-absorbing foam aluminum material for manufacturing vehicle bumper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |