CN102259666B - Energy-absorption type automobile engine hood - Google Patents
Energy-absorption type automobile engine hood Download PDFInfo
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- CN102259666B CN102259666B CN 201110133429 CN201110133429A CN102259666B CN 102259666 B CN102259666 B CN 102259666B CN 201110133429 CN201110133429 CN 201110133429 CN 201110133429 A CN201110133429 A CN 201110133429A CN 102259666 B CN102259666 B CN 102259666B
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- energy
- absorption type
- type automobile
- packaging part
- engine hood
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Abstract
The invention relates to an energy-absorption type automobile engine hood, which is characterized by comprising an automobile, an engine cabin and an engine panel. The engine panel covers above the engine cabin of the automobile, the engine panel is connected with the automobile through more than one hinge, and the more than one hinge is arranged near windshield glass of the automobile; and the engine panel comprises an outer layer plate, an inner layer plate, a cavity and a packaging component, the outer layer plate and the inner layer plate forms the cavity and the packaging component is filled in the cavity. The energy-absorption type automobile engine hood disclosed by the invention is provided with the engine panel consisting of the outer layer plate, the inner layer plate, the cavity and the packaging component, and the packaging component is filled in the cavity formed by the outer layer plate and the inner layer plate, thus the impact energy is quickly absorbed by the packaging component after the engine panel is impacted by outside objects. The energy-absorption type automobile engine hood disclosed by the invention can be widely applied to the field of automobiles.
Description
Technical field
The present invention relates to a kind of auto parts and components, particularly about a kind of energy-absorption type automobile engine hood for ensureing automotive crash safety and protection pedestrian.
Background technology
Along with the continuous increase of development and the automobile pollution of automotive technology, people increase day by day to the requirement of vehicle safety performance.In people's car accident, the positions such as pedestrian head, shoulder or waist can bump with car bonnet, thereby cause human injury in various degree, so car bonnet has been born the buffer action of part impact energy.Improve the impact energy absorb effect of automotive hood, will play an important role for improving automotive crash safety and pedestrian protecting.Traditional car bonnet mainly is made of jointly outer panel and internal layer stay bearing plate, the composite rigidity of outer panel and internal layer stay bearing plate becomes car bonnet global stiffness roughly, has also determined to a great extent the energy-absorbing effect of car bonnet under impact load simultaneously.Along with the development of automotive light weight technology and safety performance, various new materials for example high strength steel, aluminum alloy, magnesium alloy and composite material come into one's own day by day as the application of car bonnet material.For example, number of patent application is to have proposed a kind of all-composite engine cover that is filled with foamed materials in 200810137921.7 the document, has than the better energy absorption of general car bonnet.But the car bonnet energy absorption in all technical literatures also fails to reach optimum collision safety and pedestrian protecting effect at present.
Summary of the invention
For the problems referred to above, the purpose of this invention is to provide a kind of effectively apparatus with shock absorbing, be difficult for deforming, can effectively protect the energy-absorption type automobile engine hood of pedestrian and vehicle.
For achieving the above object, the present invention takes following technical scheme: a kind of energy-absorption type automobile engine hood, it is characterized in that: it comprises vehicle, machinery space and driving engine panel, machinery space top in the described vehicle is coated with described driving engine panel, described driving engine panel is connected with described vehicle by more than one hinge, and described more than one hinge is positioned on the described vehicle near the windshield place; Described driving engine panel comprises lamina rara externa, inner plating, cavity and packaging part, and described lamina rara externa and inner plating form cavity, are filled with packaging part in the described cavity.
Described packaging part comprises encapsulated layer, nano-porous materials and liquid, and described nano-porous materials and liquid form nano-porous materials-liquid mixture layer, and described nano-porous materials-liquid mixture layer is packaged into described packaging part by described encapsulated layer.
Described nano-porous materials adopts zeolite, porous silicon or porous carbon; Described liquid adopts deionized water or alcohol.
Described encapsulated layer adopts the thin polymer film of being made by polycarbonate or fiber-reinforced resin.
The thickness of described packaging part adopts between 20mm～40mm, and the thickness of described lamina rara externa and inner plating all adopts between 0.6mm～1.2mm.
Described lamina rara externa, inner plating are continuum, and described lamina rara externa, inner plating and described packaging part directly bond together.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention adopts the driving engine panel that is made of lamina rara externa, inner plating, cavity and packaging part, in the cavity of lamina rara externa and inner plating formation, be filled with packaging part, so that the driving engine panel is after being subject to the external object impact, by the rapid apparatus with shock absorbing of packaging part.2, packaging part of the present invention adopts and is comprised of encapsulated layer, nano-porous materials and liquid; nano-porous materials and liquid form nano-porous materials-liquid mixture layer; nano-porous materials-liquid mixture layer can be when suffering external impact load; nano-porous materials in the cavity-liquid mixture layer can respond rapidly and absorb a large amount of impact energys, thereby effectively protects the pedestrian and improve the Crash Safety Design of Vehicles energy.The present invention can be widely used in the automotive field.
Description of drawings
Fig. 1 is integral structure scheme drawing of the present invention;
Fig. 2 is the lamina rara externa structural representation of car bonnet panel of the present invention;
Fig. 3 is the internal board structure scheme drawing of car bonnet panel of the present invention;
Fig. 4 be among Fig. 1 A-A to cutaway view, i.e. the cutaway view of the deformation of car bonnet under foreign object impact;
The pressure that Fig. 5 is nano-porous materials of the present invention-liquid mixture layer under the quasistatic compression-volume variable curve synoptic diagram, the pressure after wherein representing to load for the first time with the curve of dice-volume variable curve; Pressure after loading for the second time with the curve of small circle-volume variable curve.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1, the present invention includes vehicle 1, machinery space 2 and driving engine panel 3, machinery space 2 tops in the vehicle 1 are coated with driving engine panel 3, and the size and shape of driving engine panel 3 is enough to cover whole machinery space 2.Driving engine panel 3 can be connected with vehicle 1 by more than one hinge, and more than one hinge is positioned on the vehicle 1 near windshield 4 places.Vehicle 1 in the process of moving, driving engine panel 3 will bear the load of the types such as stretching, compression, vibration and impact.
In above-described embodiment, such as Fig. 2～shown in Figure 4, driving engine panel 3 comprises lamina rara externa 5, inner plating 6, cavity and packaging part 7, and lamina rara externa 5 and inner plating 6 form cavitys, are filled with packaging part 7 in the cavity.Wherein, lamina rara externa 5, inner plating 6 are continuum, and lamina rara externa 5, inner plating 6 directly bond together with packaging part 7, in collision, external impact load are passed to packaging part 7, by packaging part 7 apparatus with shock absorbings.
In above-described embodiment, as shown in Figure 4, packaging part 7 comprises encapsulated layer 8, nano-porous materials 9 and liquid 10, and nano-porous materials 9 and liquid 10 form nano-porous materials-liquid mixture layer 11, nano-porous materials-liquid mixture layer 11 is encapsulated by encapsulated layer 8, forms packaging part 7.
In above-described embodiment, nano-porous materials-liquid mixture layer 11 has adjustable crushing strength threshold value, and without strengthening structure as support.Nano-porous materials-liquid mixture layer 11 can be determined compression threshold stress according to the collocation of different solid materials and fluent material and the adjustment of concentration.The stress that produces when foreign impacts load is higher than compression threshold stress, then nano-porous materials-rapid absorbed energy of liquid mixture layer 11 beginning.And this nano-porous materials-liquid mixture layer 11 can recover original energy absorption ability when extraneous load is removed, thereby can repeated usage.
In the mechanical behavior of whole material, the principle that nano-porous materials-liquid mixture layer 11 is mainly used in energy absorbing is that fluid molecule enters into aerated materials hole internal procedure, needs the gram friction drag; Because the enormous amount of nano-porous materials 9 internal capillaries causes friction drag very large, so the large energy that need to dissipate when fluid molecule enters inner void.This mixture material still can guarantee excellent energy absorption (as shown in Figure 5) after repeatedly adding unloading, therefore very be used for being fit to the energy absorbing of traffic accident multiple impacts.
In the various embodiments described above, nano-porous materials 9 can adopt zeolite, porous silicon or porous carbon etc., and liquid 10 can adopt deionized water or alcohol.
In the various embodiments described above, encapsulated layer 8 adopts the high strength thin polymeric layers, and for example, encapsulated layer 8 adopts the thin polymer film of being made by polycarbonate or fiber-reinforced resin.
In the various embodiments described above, the thickness of packaging part 7 adopts between 20mm～40mm, and the thickness of lamina rara externa 5 and inner plating 6 all adopts between 0.6mm～1.2mm.
In sum, the present invention when foreign object impact driving engine panel 3, can be passed to nano-porous materials-liquid mixture layer 11 with clamp load and bending load in use.This mixture material has that initiation load threshold value is adjustable, response time is short (is 1/10 of normal energy-absorbing material
2-3), the absorbed energy total amount (is 10 of normal energy-absorbing material greatly
2-3Characteristics doubly) can absorb rapidly a large amount of impact energys, thereby play the effect of protection pedestrian and vehicle structure.Consider that vehicle may contact with wisps such as finger stone, the grains of sand, insects in normal driving process, so the initial load threshold value should be arranged on higher level.Vertical load and horizontal load that pedestrian head/shoulder/waist applies to car bonnet, thereby and two cars the collisions caused compression of vertical load, stretching and the flexure stress that produce all pass to nano-porous materials-liquid mixture layer and evenly absorb.
The various embodiments described above only are used for explanation the present invention; the structure of each parts and connection mode all can change to some extent; on the basis of technical solution of the present invention; all improvement and equivalents of connection and the structure of individual component being carried out according to the principle of the invention all should not got rid of outside protection scope of the present invention.
Claims (7)
1. energy-absorption type automobile engine hood, it is characterized in that: it comprises vehicle, machinery space and driving engine panel, machinery space top in the described vehicle is coated with described driving engine panel, described driving engine panel is connected with described vehicle by more than one hinge, and described more than one hinge is positioned on the described vehicle near the windshield place; Described driving engine panel comprises lamina rara externa, inner plating, cavity and packaging part, and described lamina rara externa and inner plating form cavity, are filled with packaging part in the described cavity;
Described packaging part comprises encapsulated layer, nano-porous materials and liquid, and described nano-porous materials and liquid form nano-porous materials-liquid mixture layer, and described nano-porous materials-liquid mixture layer is packaged into described packaging part by described encapsulated layer.
2. a kind of energy-absorption type automobile engine hood as claimed in claim 1 is characterized in that: described nano-porous materials employing zeolite, porous silicon or porous carbon; Described liquid adopts deionized water or alcohol.
3. a kind of energy-absorption type automobile engine hood as claimed in claim 1 is characterized in that: the thin polymer film that described encapsulated layer employing is made by polycarbonate or fiber-reinforced resin.
4. a kind of energy-absorption type automobile engine hood as claimed in claim 2 is characterized in that: the thin polymer film that described encapsulated layer employing is made by polycarbonate or fiber-reinforced resin.
5. as claimed in claim 1 or 2 or 3 or 4 a kind of energy-absorption type automobile engine hood, it is characterized in that: the thickness of described packaging part adopts between 20mm～40mm, and the thickness of described lamina rara externa and inner plating all adopts between 0.6mm～1.2mm.
6. as claimed in claim 1 or 2 or 3 or 4 a kind of energy-absorption type automobile engine hood, it is characterized in that: described lamina rara externa, inner plating are continuum, and described lamina rara externa, inner plating and described packaging part directly bond together.
7. a kind of energy-absorption type automobile engine hood as claimed in claim 5, it is characterized in that: described lamina rara externa, inner plating are continuum, and described lamina rara externa, inner plating and described packaging part directly bond together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110133429 CN102259666B (en) | 2011-05-23 | 2011-05-23 | Energy-absorption type automobile engine hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110133429 CN102259666B (en) | 2011-05-23 | 2011-05-23 | Energy-absorption type automobile engine hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102259666A CN102259666A (en) | 2011-11-30 |
| CN102259666B true CN102259666B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110133429 Expired - Fee Related CN102259666B (en) | 2011-05-23 | 2011-05-23 | Energy-absorption type automobile engine hood |
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| CN (1) | CN102259666B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104082898A (en) * | 2013-04-01 | 2014-10-08 | 陈曦 | Helmet based on nano-porous energy absorption material |
| CN104228955A (en) * | 2014-09-12 | 2014-12-24 | 清华大学 | Liquid-filled energy absorption vehicle front longitudinal beam and vehicle comprising same |
| CN112356925B (en) * | 2020-10-16 | 2022-10-14 | 武汉格罗夫氢能汽车有限公司 | Carbon fiber composite material front hatch cover assembly of fuel cell hydrogen energy automobile |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386310A (en) * | 2007-09-11 | 2009-03-18 | 通用汽车环球科技运作公司 | Vehicle hood assembly with rippled cushion support |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4349013B2 (en) * | 2003-06-30 | 2009-10-21 | トヨタ自動車株式会社 | Hood support structure |
| EP2163460B1 (en) * | 2007-07-10 | 2012-06-13 | Toyota Shatai Kabushiki Kaisha | Front structure of automobile hood |
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2011
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386310A (en) * | 2007-09-11 | 2009-03-18 | 通用汽车环球科技运作公司 | Vehicle hood assembly with rippled cushion support |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-22459A 2005.01.27 |
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| CN102259666A (en) | 2011-11-30 |
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