CN202219767U - Energy absorption type automobile bumper - Google Patents
Energy absorption type automobile bumper Download PDFInfo
- Publication number
- CN202219767U CN202219767U CN2011201664321U CN201120166432U CN202219767U CN 202219767 U CN202219767 U CN 202219767U CN 2011201664321 U CN2011201664321 U CN 2011201664321U CN 201120166432 U CN201120166432 U CN 201120166432U CN 202219767 U CN202219767 U CN 202219767U
- Authority
- CN
- China
- Prior art keywords
- bumper
- energy
- front bumper
- crumple
- absorbing
- 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.)
- Expired - Lifetime
Links
- 238000010521 absorption reaction Methods 0.000 title abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000004806 packaging method and process Methods 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 16
- 239000007783 nanoporous material Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920006254 polymer film Polymers 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 229910021426 porous silicon Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model relates to an energy absorption type automobile bumper, which comprises an automobile, a front bumper and a rear bumper. Two ends of the front bumper are connected with a pair of front longitudinal beams through a flange connecting part respectively, the front longitudinal beams are positioned on the left and the right of the automobile respectively, and the rear bumper is arranged in the rear of the automobile. The front bumper comprises two crash boxes, a front bumper beam, an energy absorption part, a bumper cover and packaging parts, wherein the crash boxes are positioned on the left and the right of the automobile respectively, the front bumper beam, the energy absorption part and the bumper cover extend along the width direction of the automobile, and the packaging parts are used for packaging mixture layers of nanometer porous materials and liquid. The two crash boxes are mounted at front openings at the front ends of the two front longitudinal beams respectively, the front bumper beam is rested on the two crash boxes, and two ends of the front bumper beam are connected with the front ends of the two crash boxes respectively. The energy absorption part is mounted in the front middle of the front bumper beam, the bumper cover externally covers the two crash boxes, the front bumper beam and the energy absorption part, and the packaging parts are filled into the two crash boxes and the front bumper beam. The energy absorption type automobile bumper is capable of quickly absorbing a great quantity of impact energy to protect pedestrians and automobiles, and widely applicable 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 Federal bumper 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, meetings such as pedestrian's lower limb bump with bumper/spoiler, thereby cause shank to shear injury, though the not fatal quality of life that has a strong impact on; In car car accident, bumper/spoiler as at first with the contacted parts of external object, born the part impact energy, especially impact the buffer action of crest.Therefore improve the impact energy sorption of Federal bumper, will play an important role for improving automotive crash safety and pedestrian protecting.Traditional bumper/spoiler mainly comprises a pair of symmetrical crumple box, connects the center beam of bumper of crumple box, the energy absorbing member and the bumper/spoiler cover that are made up of polyurethane material.Along with the development of automobile lightweight and safety performance, new requirement has been proposed for the bumper/spoiler design of vehicle.
At present, in a large amount of patent documentations, improving the Federal bumper crash survivability overwhelming majority is from improving the angle of structure design.For example; Number of patent application is to have proposed a kind of containing in the document of 200710147225.X stain not to take place in head-on crash speed fully under less than Collision test specified speed state and contract, and is being higher than the bumper/spoiler that the crumple box that contracts takes place fully to steep the offset collision speed state of front under; Number of patent application is that 01114744.X and number of patent application are the Federal bumper that has all proposed to have air bag protection function in 00113957.6 the document, and the notion of using the air bag buffering improves the bumper collision safety; Number of patent application is to have proposed a kind of energy-absorbing damping bumper with multi-buffer damper in 90105824.6 the document; Number of patent application is to have proposed the method that energy-absorbing cushion block that a kind of increase utilizes elastomeric material to process improves the whole collision safety performance of Federal bumper in 91111450.5 the document.However, also there are following three shortcomings in existing energy-absorbing buffering device: 1, the collision energy-absorbing speed of response is slow.2, the energy-absorbing total amount is few.3, energy-absorbing has directivity, and promptly the general insurance thick stick can only provide effective energy-absorbing protection to this collision form of complete central collision.
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 effectively protects the energy-absorbing type Federal bumper of pedestrian and vehicle.
For realizing above-mentioned purpose, the utility model is taked following technical scheme: a kind of energy-absorbing type Federal bumper, and it comprises vehicle, front bumper and rear bumper, and the front portion of said vehicle is provided with said front bumper, and the rear portion is provided with said rear bumper; Said front bumper two ends connect a pair of front side member that is positioned at the vehicle left and right side through flange link respectively, it is characterized in that: said front bumper comprises a pair of crumple box that lays respectively at said vehicle left side and right side, along front bumper beam, energy absorbing member, the bumper/spoiler cover of the extension of overall width direction be packaged with the packaging part of nano-porous materials-liquid mixture; Two said crumple boxes are installed in the front openings place of the leading section of two said front side members respectively; Said front bumper roof beam structure is located on the two said crumple boxes, and two ends are connected with two said crumple box leading sections respectively; Said energy absorbing member is installed in the front middle part of said front bumper beam; Said bumper/spoiler cover covers the outside of two said crumple boxes, front bumper beam and energy absorbing member; Said packaging part is filled in two said crumple boxes and the front bumper beam.
Said rear bumper comprises rear bumper cover and energy absorbing piece, and said energy absorbing piece is positioned at the middle part of said rear bumper, and said rear bumper cover covers the outside; Be filled with said packaging part between said energy absorbing piece and the said energy absorbing piece.
Two said crumple boxes and front bumper beam all adopt metallic material to process; Said energy absorbing member adopts foamed resin material to process.
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 utility model is owing to take above technical scheme; It has the following advantages: 1, the utility model is owing to being filled with packaging part in crumple box that is employed in vehicle and the front bumper beam; Be packaged with nano-porous materials liquid mixture layer in the packaging part; Make in various collision forms such as head-on crash, offset collision, rear-end impact, side collision, effectively to absorb the impact energy ability, under the small-scale load impacting, can't deform simultaneously, thereby play the effect of protecting pedestrian and vehicle.2, the utility model is owing to all being filled with nano-porous materials-liquid mixture layer in front bumper that is employed in vehicle and the rear bumper; Nano-porous materials-liquid mixture layer is made up of nano-porous materials and liquid; Make that like this front bumper and rear bumper all can recover shape voluntarily under high energy impact events, effectively reduce the expense and the time that produce because of maintenance crumple box or even front side member.3, the utility model front middle part of being employed in the front bumper beam is equipped with energy absorbing member; When energy that collision energy is produced less than the rules collision velocity; Two crumple boxes are not participated in endergonic process fully; Collision energy can be absorbed through energy absorbing member, therefore, further effectively reduces the expense that produces because of maintenance crumple box.The utility model can be widely used in the automotive field.
Description of drawings
Fig. 1 is the front bumper arrangement scheme drawing of the utility model;
Fig. 2 is the rear bumper structural representation of the utility model;
Fig. 3 is that A-A is the distortion situation scheme drawing of forward and backward bumper/spoiler under foreign object impact of the utility model to structural representation among Fig. 2;
Fig. 4 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, front bumper 2 and rear bumper 3, and the front portion of vehicle 1 is provided with front bumper 2, and the rear portion of vehicle 1 is provided with rear bumper 3.Front bumper 2 two ends connect a pair of front side member 5 that is positioned at vehicle 1 left and right side through a flange link 4 respectively, and flange link 4 is along direction extension up and down.
In the foregoing description, two crumple boxes 6 all adopt metallic material to process with front bumper beam 7; Energy absorbing member 8 adopts foamed resin material to process.
As shown in Figure 2, rear bumper 3 comprises rear bumper cover 11 and energy absorbing piece 12, and energy absorbing piece 12 is positioned at the middle part of rear bumper 3, and rear bumper cover 11 covers the outside.Wherein, also be filled with packaging part 10 (as shown in Figure 3) between rear bumper cover 11 and the energy absorbing piece 12, as main energy-absorbing buffering parts.
In the foregoing description; As shown in Figure 3; Packaging part 10 comprises encapsulated layer 13, nano-porous materials 14 and liquid 15; Nano-porous materials 14 is formed nano-porous materials-liquid mixture layer 16 with liquid 15, and nano-porous materials-liquid mixture layer 16 is encapsulated by encapsulated layer 13, forms packaging part 10.When foreign object impact front bumper 2 or rear bumper 3, can clamp load and bending load be passed to nano-porous materials-liquid mixture layer 16, 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.
Among above-mentioned each embodiment, the energy absorbing load initiation threshold of nano-porous materials-liquid mixture layer 16 is lower than two crumple boxes 6 and presses the initial load of stain, and is higher than the impact load that the regulation collision velocity is produced.In the mechanical behavior of whole material, the principle that nano-porous materials-liquid mixture layer 16 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 14 internal capillaries causes friction drag very big, so the significant amount of energy that when fluid molecule gets into inner hole, need dissipate.And nano-porous materials-liquid mixture layer 16 still can guarantee excellent energy absorption after repeatedly adding unloading, therefore is used for very much being fit to the repeatedly crash energy absorption (as shown in Figure 4) of traffic accident.Wherein, the energy absorbing load initiation threshold of nano-porous materials-liquid mixture layer 16 can realize through the selection of nano-porous materials and liquid and the adjustment of nano-porous materials and liquid proportioning.
Among above-mentioned each embodiment, nano-porous materials 14 can adopt zeolite, porous silicon or porous carbon etc., and liquid 15 can adopt deionized water or alcohol.
Among above-mentioned each embodiment, encapsulated layer 13 adopts the high strength thin polymeric layers, and for example, encapsulated layer 13 adopts the thin polymer film of being processed by polycarbonate or fiber-reinforced resin.
In sum; The utility model in use; Because packaging part 10 initial energy-absorbing platform load are lower than two crumple boxes, 6 initial load threshold values; The response rapidly of packaging part 10 during therefore in the face of external impact load in front bumper 2, rear bumper 3 and the crumple box 6 absorbs most impact energys, makes front bumper 2, rear bumper 3 and crumple box 6 only participate in endergonic process on a small quantity.Owing to distortion in the packaging part that the is packaged with nano-porous materials-liquid mixture layer 16 10 absorption energy process is less; And but this deformation process is a rejuvenation; Therefore; The front bumper 2 of vehicle 1 or rear bumper 3 also can recover shape voluntarily under high energy impact events, effectively reduce because of keeping in repair expense and the time that crumple box 6 or even front side member 5 produce.And when energy that collision energy is produced less than the rules collision velocity, crumple box 6 is not participated in endergonic process fully, and collision energy can be absorbed through energy absorbing member 8, further effectively reduces the expense that produces because of maintenance crumple box 6.
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 Federal bumper, it comprises vehicle, front bumper and rear bumper, and the front portion of said vehicle is provided with said front bumper, and the rear portion is provided with said rear bumper; Said front bumper two ends connect a pair of front side member that is positioned at the vehicle left and right side through flange link respectively, it is characterized in that: said front bumper comprises a pair of crumple box that lays respectively at said vehicle left side and right side, along front bumper beam, energy absorbing member, the bumper/spoiler cover of the extension of overall width direction be packaged with the packaging part of nano-porous materials-liquid mixture; Two said crumple boxes are installed in the front openings place of the leading section of two said front side members respectively; Said front bumper roof beam structure is located on the two said crumple boxes, and two ends are connected with two said crumple box leading sections respectively; Said energy absorbing member is installed in the front middle part of said front bumper beam; Said bumper/spoiler cover covers the outside of two said crumple boxes, front bumper beam and energy absorbing member; Said packaging part is filled in two said crumple boxes and the front bumper beam.
2. energy-absorbing type Federal bumper as claimed in claim 1 is characterized in that: said rear bumper comprises rear bumper cover and energy absorbing piece, and said energy absorbing piece is positioned at the middle part of said rear bumper, and said rear bumper cover covers the outside; Be filled with said packaging part between said energy absorbing piece and the said energy absorbing piece.
3. energy-absorbing type Federal bumper as claimed in claim 1 is characterized in that: two said crumple boxes and front bumper beam all adopt metallic material to process; Said energy absorbing member adopts foamed resin material to process.
4. energy-absorbing type Federal bumper as claimed in claim 2 is characterized in that: two said crumple boxes and front bumper beam all adopt metallic material to process; Said energy absorbing member adopts foamed resin material to process.
5. like claim 1 or 2 or 3 or 4 described energy-absorbing type Federal bumpers, it is characterized in that: said packaging part comprises encapsulated layer, nano-porous materials and liquid, and said nano-porous materials and liquid are packaged into said packaging part by said encapsulated layer.
6. energy-absorbing type Federal bumper as claimed in claim 5 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.
7. like claim 1 or 2 or 3 or 4 or 6 described energy-absorbing type Federal bumpers, it 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.
8. energy-absorbing type Federal bumper as claimed in claim 5 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201664321U CN202219767U (en) | 2011-05-23 | 2011-05-23 | Energy absorption type automobile bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201664321U CN202219767U (en) | 2011-05-23 | 2011-05-23 | Energy absorption type automobile bumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202219767U true CN202219767U (en) | 2012-05-16 |
Family
ID=46041800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201664321U Expired - Lifetime CN202219767U (en) | 2011-05-23 | 2011-05-23 | Energy absorption type automobile bumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202219767U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205822A (en) * | 2011-05-23 | 2011-10-05 | 清华大学 | Energy-absorbing type car bumper |
| CN104088957A (en) * | 2013-04-01 | 2014-10-08 | 陈曦 | Nano-porous energy absorption device |
| US11046270B1 (en) | 2019-12-18 | 2021-06-29 | Ford Global Technologies, Llc | Displacement resistance device for a vehicle crush-can assembly and crush-can yield adjustment method |
-
2011
- 2011-05-23 CN CN2011201664321U patent/CN202219767U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205822A (en) * | 2011-05-23 | 2011-10-05 | 清华大学 | Energy-absorbing type car bumper |
| CN104088957A (en) * | 2013-04-01 | 2014-10-08 | 陈曦 | Nano-porous energy absorption device |
| US11046270B1 (en) | 2019-12-18 | 2021-06-29 | Ford Global Technologies, Llc | Displacement resistance device for a vehicle crush-can assembly and crush-can yield adjustment method |
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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: 20120516 Effective date of abandoning: 20131211 |
|
| RGAV | Abandon patent right to avoid regrant |