CN202175013U - Energy-absorbing automotive engine cover - Google Patents
Energy-absorbing automotive engine cover Download PDFInfo
- Publication number
- CN202175013U CN202175013U CN2011201672440U CN201120167244U CN202175013U CN 202175013 U CN202175013 U CN 202175013U CN 2011201672440 U CN2011201672440 U CN 2011201672440U CN 201120167244 U CN201120167244 U CN 201120167244U CN 202175013 U CN202175013 U CN 202175013U
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- energy
- packaging part
- panel
- inner plating
- vehicle
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Abstract
The utility model relates to an energy-absorbing automotive engine cover, which is characterized by comprising a vehicle, an engine compartment and an engine panel. The engine panel is covered above the engine compartment in the vehicle and connected with the vehicle through more than one hinge, the hinges are positioned at a position of the vehicle close to windshield glass, the engine panel comprises an outer panel, an inner panel, a hollow cavity and an encapsulation part, the hollow cavity is formed by the outer panel and the inner panel, and the encapsulation part is filled in the hollow cavity. Since the energy-absorbing automotive engine cover utilizes the engine panel comprising the outer panel, the inner panel, the hollow cavity and the encapsulation part, and the encapsulation part is filled in the hollow cavity formed by the outer panel and the inner panel, so that the encapsulation part can absorb impact energy quickly after the engine panel is impacted by external objects. The energy-absorbing automotive engine cover can be widely applied to the field of automobiles.
Description
Technical field
The utility model relates to a kind of auto parts and components, particularly about a kind of energy-absorbing type automotive hood that is used to ensure automotive crash safety and protection pedestrian.
Background technology
Along with the continuous development of automotive technology and the continuous increase of automobile pollution, people increase the requirement of vehicle safety performance day by day.In people's car accident, 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 sorption of automotive hood, will play an important role for improving automotive crash safety and pedestrian protecting.The Traditional engine cover mainly is made up of outer panel and internal layer stay bearing plate jointly; The composite rigidity of outer panel and internal layer stay bearing plate becomes car bonnet global stiffness roughly, has also determined the energy-absorbing effect of car bonnet under impact load simultaneously to a great extent.Along with the development of automobile lightweight and safety performance, various new materials for example high strength steel, aluminum alloy, magnesium alloy and composite material come into one's own as the application of car bonnet material day by day.For example, number of patent application is to have proposed a kind of composite material car bonnet that is filled with foamed materials in 200810137921.7 the document, has than general car bonnet better energy sorption.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
To the problems referred to above, the purpose of the utility model provides and a kind ofly can effectively absorb impact energy, is difficult for deforming, and can effectively protect the energy-absorbing type automotive hood of pedestrian and vehicle.
For realizing above-mentioned purpose; The utility model is taked following technical scheme: a kind of energy-absorbing type automotive hood; It is characterized in that: it comprises vehicle, machinery space and driving engine panel; Machinery space top in the said vehicle is coated with said driving engine panel, and said driving engine panel is connected with said vehicle through more than one hinge, and said more than one hinge is positioned on the said vehicle near the windshield place; Said driving engine panel comprises lamina rara externa, inner plating, cavity and packaging part, and said lamina rara externa and inner plating form cavity, are filled with packaging part in the said cavity.
Said packaging part comprises encapsulated layer, nano-porous materials and liquid, and said nano-porous materials and liquid are formed nano-porous materials-liquid mixture layer, and said nano-porous materials-liquid mixture layer is packaged into said packaging part by said encapsulated layer.
Said nano-porous materials adopts zeolite, porous silicon and wherein a kind of material of porous carbon to process; Said liquid employing deionized water and alcohol are wherein a kind of.
Said encapsulated layer adopts the thin polymer film of being processed by polycarbonate and wherein a kind of material of fiber-reinforced resin.
The thickness of said packaging part adopts between 20mm～40mm, and the thickness of said lamina rara externa and inner plating all adopts between 0.6mm～1.2mm.
Said lamina rara externa, inner plating are continuum, and said lamina rara externa, inner plating and said packaging part directly bond together.
The utility model is owing to take above technical scheme; It has the following advantages: 1, the utility model adopts the driving engine panel that is made up 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; Make the driving engine panel after receiving the external object impact, absorb impact energy rapidly by packaging part.2, the utility model packaging part adopts and is made up of encapsulated layer, nano-porous materials and liquid; Nano-porous materials and liquid are formed 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 automotive crash safety performance.The utility model can be widely used in the automotive field.
Description of drawings
Fig. 1 is the integral structure scheme drawing of the utility model;
Fig. 2 is the lamina rara externa structural representation of the utility model car bonnet panel;
Fig. 3 is the inner plating structural representation of the utility model car bonnet panel;
Fig. 4 be among Fig. 1 A-A to cutaway view, i.e. the cutaway view of the distortion situation of car bonnet under foreign object impact;
Fig. 5 is the pressure-volume variable curve synoptic diagram of the utility model nano-porous materials-liquid mixture layer under the quasistatic compression, and the curve that wherein has dice is represented the pressure-volume variable curve after load the first time; Pressure-volume variable curve after the curve that has a small circle loads for the second time.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is carried out detailed description.
As shown in Figure 1, the utility model comprises vehicle 1, machinery space 2 and driving engine panel 3, and 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 through 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 types such as stretching, compression, vibration and impact.
In the foregoing description, like 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 forms cavitys with inner plating 6, is 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, with external impact loading transfer to packaging part 7, absorb impact energys by packaging part 7.
In the foregoing description; As shown in Figure 4, packaging part 7 comprises encapsulated layer 8, nano-porous materials 9 and liquid 10, and nano-porous materials 9 is formed nano-porous materials-liquid mixture layer 11 with liquid 10; Nano-porous materials-liquid mixture layer 11 is encapsulated by encapsulated layer 8, forms packaging part 7.
In the foregoing description, nano-porous materials-liquid mixture layer 11 has adjustable crushing strength threshold value, and does not have the structure of enhancing as support.Nano-porous materials-liquid mixture layer 11 can be confirmed 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, and then nano-porous materials-liquid mixture layer 11 beginning absorb energy rapidly.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 big, so the significant amount of energy that when fluid molecule gets into inner hole, need dissipate.This mixture material still can guarantee excellent energy absorption (as shown in Figure 5) after repeatedly adding unloading, therefore be used for very much being fit to the energy absorbing that traffic accident is repeatedly collided.
Among above-mentioned each embodiment, nano-porous materials 9 can adopt zeolite, porous silicon or porous carbon etc., and liquid 10 can adopt deionized water or alcohol.
Among above-mentioned each embodiment, encapsulated layer 8 adopts the high strength thin polymeric layers, and for example, encapsulated layer 8 adopts the thin polymer film of being processed by polycarbonate or fiber-reinforced resin.
Among above-mentioned each embodiment, 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 utility model 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 initiation load adjustable threshold value, response time is short (is 1/10 of normal energy-absorbing material
2-3), to absorb the energy total amount (be 10 of normal energy-absorbing material greatly
2-3Characteristics doubly) can absorb a large amount of impact energys rapidly, thereby play the effect of protection pedestrian and vehicle structure.Consider that vehicle possibly contact with wisps such as finger stone, the grains of sand, insects in the cruising 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.
Above-mentioned each embodiment only is used to explain the utility model; The structure of each parts and connection mode all can change to some extent; On the basis of the utility model technical scheme; All improvement and equivalents of the connection and the structure of individual component being carried out according to the utility model principle all should not got rid of outside the protection domain of the utility model.
Claims (8)
1. energy-absorbing type automotive hood; It is characterized in that: it comprises vehicle, machinery space and driving engine panel; Machinery space top in the said vehicle is coated with said driving engine panel; Said driving engine panel is connected with said vehicle through more than one hinge, and said more than one hinge is positioned on the said vehicle near the windshield place; Said driving engine panel comprises lamina rara externa, inner plating, cavity and packaging part, and said lamina rara externa and inner plating form cavity, are filled with packaging part in the said cavity.
2. energy-absorbing type automotive hood as claimed in claim 1, it is characterized in that: said packaging part comprises encapsulated layer, nano-porous materials and liquid, said nano-porous materials and liquid are packaged into said packaging part by said encapsulated layer.
3. energy-absorbing type automotive hood as claimed in claim 2 is characterized in that: said nano-porous materials adopts zeolite, porous silicon and wherein a kind of material of porous carbon to process; Said liquid employing deionized water and alcohol are wherein a kind of.
4. energy-absorbing type automotive hood as claimed in claim 2 is characterized in that: said encapsulated layer adopts the thin polymer film of being processed by polycarbonate and wherein a kind of material of fiber-reinforced resin.
5. energy-absorbing type automotive hood as claimed in claim 3 is characterized in that: said encapsulated layer adopts the thin polymer film of being processed by polycarbonate and wherein a kind of material of fiber-reinforced resin.
6. like claim 1 or 2 or 3 or 4 or 5 described energy-absorbing type automotive hoods, it is characterized in that: the thickness of said packaging part adopts between 20mm～40mm, and the thickness of said lamina rara externa and inner plating all adopts between 0.6mm～1.2mm.
7. like claim 1 or 2 or 3 or 4 or 5 described energy-absorbing type automotive hoods, it is characterized in that: said lamina rara externa, inner plating are continuum, and said lamina rara externa, inner plating and said packaging part directly bond together.
8. energy-absorbing type automotive hood as claimed in claim 6, it is characterized in that: said lamina rara externa, inner plating are continuum, and said lamina rara externa, inner plating and said packaging part directly bond together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201672440U CN202175013U (en) | 2011-05-23 | 2011-05-23 | Energy-absorbing automotive engine cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201672440U CN202175013U (en) | 2011-05-23 | 2011-05-23 | Energy-absorbing automotive engine cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202175013U true CN202175013U (en) | 2012-03-28 |
Family
ID=45864915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201672440U Expired - Lifetime CN202175013U (en) | 2011-05-23 | 2011-05-23 | Energy-absorbing automotive engine cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202175013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106170389A (en) * | 2014-04-11 | 2016-11-30 | 日产自动车株式会社 | Impact absorbing structure and there is the vehicle outer panel member of this impact absorbing structure |
| CN107264642A (en) * | 2016-04-01 | 2017-10-20 | 通用汽车环球科技运作有限责任公司 | Energy absorbing structure |
-
2011
- 2011-05-23 CN CN2011201672440U patent/CN202175013U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106170389A (en) * | 2014-04-11 | 2016-11-30 | 日产自动车株式会社 | Impact absorbing structure and there is the vehicle outer panel member of this impact absorbing structure |
| CN107264642A (en) * | 2016-04-01 | 2017-10-20 | 通用汽车环球科技运作有限责任公司 | Energy absorbing structure |
| CN107264642B (en) * | 2016-04-01 | 2019-06-14 | 通用汽车环球科技运作有限责任公司 | Energy absorbing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120328 Effective date of abandoning: 20130403 |
|
| RGAV | Abandon patent right to avoid regrant |