CN202243323U - Anti-collision energy-absorbing beam for pedestrian protection - Google Patents
Anti-collision energy-absorbing beam for pedestrian protection Download PDFInfo
- Publication number
- CN202243323U CN202243323U CN2011203069960U CN201120306996U CN202243323U CN 202243323 U CN202243323 U CN 202243323U CN 2011203069960 U CN2011203069960 U CN 2011203069960U CN 201120306996 U CN201120306996 U CN 201120306996U CN 202243323 U CN202243323 U CN 202243323U
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- collision energy
- pedestrian
- energy absorption
- collision
- absorption beam
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Abstract
The utility model discloses an anti-collision energy-absorbing beam for pedestrian protection. The anti-collision energy-absorbing beam is connected to the front part of an automotive front anti-collision beam; and the anti-collision energy-absorbing beam has a transverse U-shaped structure and is provided with upper and lower surfaces and a front vertical face. By the technical scheme, the anti-collision energy-absorbing beam for pedestrian protection has a simple structure and is low in unit cost; and when a pedestrian collides with a vehicle, the anti-collision energy-absorbing beam can be quickly crushed and deformed, so that the impact force on the pedestrian is reduced, the standard exceeding of the acceleration of legs of the pedestrian caused by the impact is avoided, the risks of serious bone fracture and hairline fracture at the positions near knee joints of the pedestrian are reduced, and injuries to the legs of the pedestrian are avoided.
Description
Technical field
The utility model relates to the total member of the crashproof crossbeam of front portion of car body, and specifically, the utility model relates to a kind of pedestrian protecting anti-collision energy absorption beam.
Background technology
GB/T24550-2009 " automobile is to pedestrian's crash protection " implemented on July 1st, 2010; Three injury values of shank all must be less than the limit value of rules and regulations when wherein having stipulated pedestrian lower leg collision front bumper; Be shin bone acceleration/accel＜170g (g is an acceleration due to gravity); Knee bend angle＜19 °, knee shear displacemant＜6mm.The impact on lower legs device impacts the front bumper zone with 35km/h during this GB test.Strict relatively more is that European new car appraisal procedure is an EURO-NCAP pedestrian protecting evaluation portion; Stipulated that the impact on lower legs device impacts the front bumper zone with 40km/h; And the injury values that requires is strict more; Its ceiling value is respectively shin bone acceleration/accel＜150g, knee bend angle＜15 °, knee shear displacemant＜6mm.Comparatively speaking, collision energy was high when EURO-NCAP collided than the GB shank, and this just requires the front bumper zone to absorb more collision energy.No matter be rules, or NCAP, these technology limitings have all increased the technical requirements to front bumper region energy absorptive character.As a rule, under the sufficient situation in shank collision space, knee shear displacemant and shin bone acceleration/accel can both satisfy, and perhaps passing through less optimization can be up to standard.But the sufficient inadequately situation in shank collision space, the shin bone acceleration/accel can severe overweight usually.The structure that present similar vehicle adopts in this part zone usually is buffering foam block, plastic structural part; Common this structure is when pedestrian lower leg collision front bumper zone; Buffering foam or plastic structural part can not can cause the pedestrian lower leg acceleration/accel to exceed standard fully by conquassation.In general, the cooresponding zone of the front anti-collision beam on the front bumper just in time is pedestrian's knee joint position, causes near position fracture compound comminuted of pedestrian's knee joint and bone split easily, pedestrian lower leg is caused the sickness influence that is difficult to recover.
The utility model content
The utility model technical matters to be solved is a kind of pedestrian protecting anti-collision energy absorption beam, is installed on the automobile when reducing pedestrian on automobile and the road and bump the risk that pedestrian's knee is caused destructive damage and knee joint close position fracture and bone split.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of pedestrian protecting anti-collision energy absorption beam, be connected the front portion of front anticollision beam of automobile, and said anti-collision energy absorption beam is horizontal U-shaped structure, has upper and lower two surface and anterior facades.
The edge on upper and lower two surfaces of said anti-collision energy absorption beam is provided with flange, and said flange is connected with said front anti-collision beam.
Its length direction is provided with a plurality of boss in said flange upper edge.
The upper and lower surface of said anti-collision energy absorption beam is the dip plane, and forming said anti-collision energy absorption beam is contraction-like structure towards said anterior facade.
Said anti-collision energy absorption beam upper and lower two the surface and anterior facade on be provided with square hole, circular hole or strip hole.
The thickness of slab of said anti-collision energy absorption beam is less than 0.8mm.
The utility model adopts technique scheme, and pedestrian protecting anti-collision energy absorption girder construction is simple, and cost per unit is low; When pedestrian and collision happens; The conquassation distortion can take place rapidly in this anti-collision energy absorption beam; Reduced impact to the pedestrian; Avoided bump to cause the pedestrian lower leg acceleration/accel to exceed standard, reduced the risk of near position fracture compound comminuted of pedestrian's knee joint and bone split, avoided pedestrian lower leg is caused the sickness influence that is difficult to recover.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is installed in the structural representation on the front anti-collision beam for the utility model;
Fig. 3 is that the utility model and front bumper position concern scheme drawing.
Mark among the above-mentioned figure is: 1, anti-collision energy absorption beam; 11, anterior facade; 12, upper inclined surface; 13, lower bevel; 14, boss; 15, flange; 2, front anti-collision beam; 3, weld nugget; 4, front bumper.
The specific embodiment
As depicted in figs. 1 and 2, a kind of pedestrian protecting anti-collision energy absorption of the utility model beam is connected the front portion of front anticollision beam of automobile 2; When automobile and pedestrian meet accident collision; The conquassation distortion takes place rapidly in this anti-collision energy absorption beam 1 under the effect of impact, reduce the impact to the pedestrian, causes the pedestrian lower leg acceleration/accel to exceed standard to avoid bump; Reduced the risk of near position fracture compound comminuted of pedestrian's knee joint and bone split, avoided pedestrian lower leg is caused the sickness influence that is difficult to recover.This anti-collision energy absorption beam 1 is installed in front anti-collision beam 2 front portions and is horizontal U-shaped structure; Have upper and lower two surface and anterior facades 11; The upper and lower surface of anti-collision energy absorption beam 1 is the dip plane, is respectively upper inclined surface 12 and lower bevel 13, and forming anti-collision energy absorption beam 1 is contraction-like structure towards anterior facade 11; The mode that expands outwardly is taked on the inclined-plane, upper and lower part 13 of energy-absorbing beam, makes the energy-absorbing beam and to absorb enough shank collision energies by abundant conquassation distortion.
In order to ensure being connected of this anti-collision energy absorption beam 1 and front anti-collision beam 2; Be provided with flange 15 at upper and lower two of anti-collision energy absorption beam 1 surperficial edges; And 3 positions of the weld nugget on flange 15 are through spot welding or CO2 gas shield arc welding and front anti-collision beam 2 weld togethers, and form a cavity.Simultaneously, in order to ensure near the intensity the welding region, be provided with a plurality of boss 14 at its length direction of flange 15 upper edges of upper inclined surface 12 and lower bevel 13, weld nugget 3 lays respectively between adjacent two boss 14.
Simultaneously, moderate in order to guarantee this anti-collision energy absorption beam 1 structural strength, anti-collision energy absorption beam 1 upper and lower two the surface and anterior facade 11 on be provided with square hole, circular hole or strip hole.
This anti-collision energy absorption beam 1 is a sheet metal component, and thickness of slab is less than 0.8mm, and material yield intensity is lower than 280Mpa.
As shown in Figure 3, under the inadequate situation in gap of front anti-collision beam 2 and front bumper 4, increase more favorable for absorption shank collision energy of pedestrian protecting anti-collision energy absorption beam 1, and make full use of gap between the two, reduce leg injury.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as adopted the method design of the utility model and the improvement of the various unsubstantialities that technical scheme is carried out; Or the design of the utility model and technical scheme are directly applied to other occasion without improving, all within the protection domain of the utility model.
Claims (6)
1. pedestrian protecting anti-collision energy absorption beam is connected the front portion of front anticollision beam of automobile, and it is characterized in that: said anti-collision energy absorption beam is horizontal U-shaped structure, has upper and lower two surface and anterior facades.
2. pedestrian protecting anti-collision energy absorption beam according to claim 1 is characterized in that: the edge on upper and lower two surfaces of said anti-collision energy absorption beam is provided with flange, and said flange is connected with said front anti-collision beam.
3. pedestrian protecting anti-collision energy absorption beam according to claim 2 is characterized in that: its length direction is provided with a plurality of boss in said flange upper edge.
4. according to claim 1 or 2 or 3 described pedestrian protecting anti-collision energy absorption beams, it is characterized in that: the upper and lower surface of said anti-collision energy absorption beam is the dip plane, and forming said anti-collision energy absorption beam is contraction-like structure towards said anterior facade.
5. pedestrian protecting anti-collision energy absorption beam according to claim 4 is characterized in that: said anti-collision energy absorption beam upper and lower two the surface and anterior facade on be provided with square hole, circular hole or strip hole.
6. pedestrian protecting anti-collision energy absorption beam according to claim 5, it is characterized in that: the thickness of slab of said anti-collision energy absorption beam is less than 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203069960U CN202243323U (en) | 2011-08-22 | 2011-08-22 | Anti-collision energy-absorbing beam for pedestrian protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203069960U CN202243323U (en) | 2011-08-22 | 2011-08-22 | Anti-collision energy-absorbing beam for pedestrian protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202243323U true CN202243323U (en) | 2012-05-30 |
Family
ID=46104610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203069960U Expired - Fee Related CN202243323U (en) | 2011-08-22 | 2011-08-22 | Anti-collision energy-absorbing beam for pedestrian protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202243323U (en) |
-
2011
- 2011-08-22 CN CN2011203069960U patent/CN202243323U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151022 Address after: 321301 No. 9 Beihu Road, Yongkang Economic Development Zone, Zhejiang, China Patentee after: Zhejiang Zhongtai Automobile Manufacturing Co., Ltd. Address before: 321301 No. 1 Beihu Road, Zhejiang hardware science and Technology Industrial Park Patentee before: Zotye Holding Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20200822 |