CN103921746B - Synchronous energy absorption device before and after auto against - Google Patents
Synchronous energy absorption device before and after auto against Download PDFInfo
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- CN103921746B CN103921746B CN201410167072.5A CN201410167072A CN103921746B CN 103921746 B CN103921746 B CN 103921746B CN 201410167072 A CN201410167072 A CN 201410167072A CN 103921746 B CN103921746 B CN 103921746B
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Abstract
The present invention relates to synchronous energy absorption device before and after a kind of auto against, comprise front bumper, and symmetrically arranged rear bumper identical with front bumper arrangement, and for transmitting two push rods of the impact force from front bumper and rear bumper; Front bumper and rear bumper include front buffer beam, after cross member and two front and rear beam attaching partss; The two ends of front buffer beam and after cross member are respectively by front and rear beam attaching parts weld together, spatial placement between front buffer beam and after cross member two is fixed on energy-absorption box on after cross member and two for connecting the energy-absorption box link span of energy-absorption box, and energy-absorption box link span and front buffer beam are welded as a whole; Two push rods are set in parallel between forward and backward bumper/spoiler, and push rod two ends are arranged in the after cross member of forward and backward bumper/spoiler, and push rod two ends are connected with the energy-absorption box of forward and backward bumper/spoiler respectively.Structure of the present invention is simple, when there is head-on crash and knock into the back, automobile can the more energy of absorptance to ensure the safety of passenger.
Description
Technical field
The present invention relates to automotive safety technology, be specifically related to synchronous energy absorption device before and after a kind of auto against.
Background technology
Along with the development of automotive technology and the continuous increase of automobile pollution, the requirement of people to vehicle safety performance increases day by day.In people's car accident, the lower limb of pedestrian etc. can collide with bumper/spoiler, thus cause leg to shear injury, have a strong impact on quality of life though not fatal; In car car accident, bumper/spoiler, as the parts contacted with external object at first, assume responsibility for part impact energy, especially impacts the buffer action of crest.Therefore improve the impact energy absorb effect of Federal bumper, will play an important role for raising automotive crash safety and pedestrian protecting.Before and after orthodox car, energy absorption device is separate, and when head-on crash occurring respectively and knocking into the back, the independent energy-absorbing of energy absorption device before and after automobile, absorbs finite energy.In order to solve the problems such as energy absorption is little, some energy absorption devices improve structure and material and change on original basis, make structure more complicated, and manufacture more difficult, cost is more expensive.Some energy absorption device is with automatically controlled or hydraulic control automatic telescopic, but the space taken is relatively large, complex structure, and cost is relatively high.
Summary of the invention
The object of this invention is to provide synchronous energy absorption device before and after a kind of auto against, being intended to solve the separate front and back energy absorption device of orthodox car is independent energy-absorbing, absorbs energy little and can not realize the problem of the synchronous energy-absorbing of front and back energy absorption device.
For achieving the above object, the technical solution used in the present invention is as follows:
Synchronous energy absorption device before and after auto against, its special character is: comprise front bumper, and symmetrically arranged rear bumper identical with front bumper arrangement, and for transmitting two push rods of the impact force from front bumper and rear bumper; Described front bumper and rear bumper include front buffer beam, after cross member and two front and rear beam attaching partss; The two ends of described front buffer beam and after cross member are respectively by front and rear beam attaching parts weld together, spatial placement between front buffer beam and after cross member two is fixed on energy-absorption box on after cross member and two for connecting the energy-absorption box link span of energy-absorption box, and energy-absorption box link span and front buffer beam are welded as a whole; Described two push rods are set in parallel between front bumper and rear bumper, and the two ends of push rod are arranged in the after cross member of forward and backward bumper/spoiler, and the two ends of push rod are connected with the energy-absorption box of forward and backward bumper/spoiler respectively.
Further, the internal welding of described energy-absorption box is connected to a pushing block, and the rear and front end of push rod is welded with the pushing block in the energy-absorption box of forward and backward bumper/spoiler and formed one.
Further, be provided with many strut bars between described front bumper and two after cross members of rear bumper, the two ends of strut bar are integrated with the rear cross beam welding of forward and backward bumper/spoiler respectively.
Further, described energy-absorption box link span is provided with two brace panels together with rear cross beam welding.
Further, described front buffer beam is double layer hollow Curved beam, and front buffer beam welds by two identical arc components the Curved beam forming hollow.
Further, described after cross member is rectangular hollow straight beam.
Further, described push rod is the square pole of hollow.
Further, described strut bar is the square straight-bar of hollow.
Synchronous energy absorption device before and after auto against provided by the invention, can solve the separate front and back energy absorption device of orthodox car is independent energy-absorbing, absorbs energy little and can not realize the problem of the synchronous energy-absorbing of front and back energy absorption device.The present invention is on the basis not increasing front/rear collision bumper space, the absorption of more collision energies can be realized without the need to carrying out material improvement, structure of the present invention is simple, manufacture simple, front and back energy absorption device is formed an integral energy-absorbing device, when head-on crash occurring respectively and knocking into the back, automobile can the more energy of the general automobile of absorptance, and then ensures the safety of passenger.The present invention can be used for whole automobile to replace front/rear collision bumper, also can be used for the multistage endergonic structure of automobile and other need in the structure of energy-absorbing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is front schematic view of the present invention;
Fig. 3 is the side-looking structural representation of Fig. 2;
Fig. 4 is A place enlarged diagram in Fig. 2;
Fig. 5 is the sectional structure schematic diagram of energy-absorption box 7 in the present invention;
Wherein, 1, bumper/spoiler, 2, rear bumper, 3, push rod, 4, front buffer beam, 5, after cross member, 6, front and rear beam attaching parts, 7, energy-absorption box, 8, energy-absorption box link span, 9, pushing block, 10, strut bar, 11, brace panel.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 show synchronous energy absorption device before and after auto against provided by the invention structure.For convenience of explanation, illustrate only part related to the present invention.
Before and after auto against of the present invention, synchronous energy absorption device, comprises front bumper 1, and symmetrically arranged rear bumper 2 identical with front bumper 1 structure, and for transmitting two push rods 3 of the impact force from front bumper 1 and rear bumper 2; Front bumper 1 and rear bumper 2 include front buffer beam 4, after cross member 5 and two front and rear beam attaching partss 6; The two ends of front buffer beam 4 and after cross member 5 are respectively by front and rear beam attaching parts 6 weld together, spatial placement between front buffer beam 4 and after cross member 5 two is fixed on energy-absorption box 7 on after cross member 5 and two for connecting the energy-absorption box link span 8 of energy-absorption box 7, and energy-absorption box link span 8 and front buffer beam 4 are welded as a whole; Two push rods 3 are set in parallel between front bumper 1 and rear bumper 2, and the two ends of push rod 3 are arranged in the after cross member 5 of forward and backward bumper/spoiler, and the two ends of push rod 3 are connected with the energy-absorption box 7 of forward and backward bumper/spoiler respectively.
As a prioritization scheme of the embodiment of the present invention, the internal welding of energy-absorption box 7 is connected to a pushing block 9, and the rear and front end of push rod 3 is welded with the pushing block 9 in the energy-absorption box of forward and backward bumper/spoiler and formed one.
As a prioritization scheme of the embodiment of the present invention, be provided with many strut bars 10 between front bumper 1 and two after cross members of rear bumper 2, the two ends of strut bar 10 are integrated with the rear cross beam welding of forward and backward bumper/spoiler respectively.
As a prioritization scheme of the embodiment of the present invention, energy-absorption box link span 8 is provided with two with the brace panel 11 of after cross member 5 weld together.
As a prioritization scheme of the embodiment of the present invention, front buffer beam 4 is double layer hollow Curved beam, and front buffer beam 4 welds by two parts the Curved beam forming hollow.
As a prioritization scheme of the embodiment of the present invention, after cross member 5 is rectangular hollow straight beam.
As a prioritization scheme of the embodiment of the present invention, push rod 3 is square poles of hollow.
As a prioritization scheme of the embodiment of the present invention, strut bar 10 is square straight-bars of hollow.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As Figure 1-Figure 5, synchronous energy absorption device before and after the auto against of the embodiment of the present invention, comprise front bumper 1, and symmetrically arranged rear bumper 2 identical with front bumper 1 structure, and for transmitting two push rods 3 of the impact force from front bumper 1 and rear bumper 2; Front bumper 1 and rear bumper 2 include front buffer beam 4, after cross member 5 and two front and rear beam attaching partss 6; The two ends of front buffer beam 4 and after cross member 5 are respectively by front and rear beam attaching parts 6 weld together, spatial placement between front buffer beam 4 and after cross member 5 two is fixed on energy-absorption box 7 on after cross member 5 and two for connecting the energy-absorption box link span 8 of energy-absorption box 7, and energy-absorption box link span 8 and front buffer beam 4 are welded as a whole; Two push rods 3 are set in parallel between front bumper 1 and rear bumper 2, and the two ends of push rod 3 are arranged in the after cross member 5 of forward and backward bumper/spoiler, and the two ends of push rod 3 are connected with an energy-absorption box 7 of forward and backward bumper/spoiler respectively.
The inside of the energy-absorption box 7 of forward and backward bumper/spoiler is respectively welded with a pushing block 9, for convenience of description, the energy-absorption box of front bumper is referred to as front energy-absorption box by us, the energy-absorption box of rear bumper is referred to as rear energy-absorption box, and the pushing block correspondence of the inner each welding of front energy-absorption box, rear energy-absorption box is referred to as front pushing block, rear pushing block.Two equal rear and front ends of push rod 3 are welded with the forward and backward pushing block in forward and backward energy-absorption box and are formed one.The internal welding of the energy-absorption box 7 of forward and backward bumper/spoiler is connected to a pushing block 9, energy-absorption box 7 can better be out of shape in conquassation, energy-absorption box 7 is connected on after cross member 5 by two halves corrugated foils, respectively there is a place protruding to surrounding in forward and backward energy-absorption box 7, be convenient to its interior welds pushing block, in actual fabrication, raised position and shape also can be different, in order to be suitable for different occasions.Pushing block 9 cross-sectional area is less than the cross-sectional area of the bossing inner space of energy-absorption box 7 respectively, is convenient to pushing block to be welded on wherein, and the pushing block in forward and backward energy-absorption box welds with push rod 3 respectively, and then realizes the transmission of front and back energy.
Be provided with many strut bars 10 between front bumper 1 and two after cross members of rear bumper 2, the two ends of strut bar 10 are integrated with the rear cross beam welding of forward and backward bumper/spoiler respectively, can be good at maintaining the stable of whole device; .
Energy-absorption box link span 8 is provided with two with the brace panel 11 of after cross member 5 weld together.Brace panel 11 is connected between energy-absorption box and energy-absorption box link span 8, the effect supported before and after playing, and makes energy-absorption box 7 better conquassation distortion.
Front buffer beam 4 is double layer hollow Curved beam, and front buffer beam 4 welds by two parts the Curved beam forming hollow, can contact object in an impact at first and absorb part energy.
After cross member 5 is rectangular hollow straight beam, and two square openings that have above of after cross member 5 are convenient to push rod and are passed, and the two ends of after cross member 5 are respectively by two front and rear beam attaching partss 6 and front buffer beam 4 two ends weld together.
Push rod 3 is square poles of hollow, and cross-sectional area is suitable, is convenient to after cross member 5 square opening being each passed through forward and backward bumper/spoiler, and to penetrate in energy-absorption box 7 and to weld with pushing block 9, energy before and after being convenient to transmit.
Strut bar 10 is square straight-bars of hollow, can have many, and for supporting the symmetrical front bumper 1 in front and back and rear bumper 2, the two ends of strut bar 10 are welded on the after cross member of front bumper 1 and the after cross member of rear bumper 2 respectively.
Synchronous energy absorption device before and after auto against of the present invention, only this device need be arranged on automobile front/rear collision bumper position during use, when automobile generation central collision, the first contact-impact object of front buffer beam of front bumper 1 produces distortion energy-absorbing, front buffer beam is deformed to a certain degree afterwards by energy-absorption box distortion before the compression of energy-absorption box link span 8 transmission of pressure, front energy-absorption box 7 is out of shape to a certain degree, power forces front pushing block and push rod 3 power to be delivered to rear pushing block (pushing block in the energy-absorption box of rear bumper), rear pushing block is by rear energy-absorption box compressive deformation, if distortion is also in continuation, other parts of rear bumper can be out of shape energy-absorbing in succession, thus synchronous energy-absorbing before and after achieving.
When automobile knocks into the back, the first contact-impact object of front buffer beam of rear bumper 2 produces distortion energy-absorbing, front buffer beam distortion is to a certain degree afterwards by energy-absorption box distortion after the energy-absorption box link span transmitting force compression of rear bumper 2, after rear energy-absorption box distortion to a certain degree, power forces rear pushing block and push rod 3 that power is delivered to front pushing block, and front pushing block is by front energy-absorption box compressive deformation, if distortion is also in continuation, other parts of front bumper can be out of shape energy-absorbing in succession, thus synchronous energy-absorbing before and after achieving.
Synchronous energy absorption device before and after auto against of the present invention; through analysis of simulation experiment; before and after this auto against, synchronous energy absorption device can the energy of the absorption at least 30% more than 2 than independent front bumper 1 or rear bumper, better can protect occupant safety when there is safety misadventure.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. synchronous energy absorption device before and after auto against, comprise front bumper (1), and symmetrically arranged rear bumper (2) identical with front bumper (1) structure, is characterized in that: also comprise two push rods (3) for transmitting the impact force from front bumper (1) and rear bumper (2); Described front bumper (1) and rear bumper (2) include front buffer beam (4), after cross member (5) and two front and rear beam attaching partss (6); The two ends of described front buffer beam (4) and after cross member (5) are respectively by front and rear beam attaching parts (6) weld together, spatial placement between front buffer beam (4) and after cross member (5) two is fixed on energy-absorption box (7) on after cross member (5) and two for connecting the energy-absorption box link span (8) of energy-absorption box (7), and energy-absorption box link span (8) and front buffer beam (4) are welded as a whole; Described two push rods (3) are set in parallel between front bumper (1) and rear bumper (2), the two ends of push rod (3) are arranged in the after cross member (5) of forward and backward bumper/spoiler, and the two ends of push rod (3) are connected with the energy-absorption box (7) of forward and backward bumper/spoiler respectively.
2. synchronous energy absorption device before and after the auto against according to right 1, it is characterized in that: the internal welding of described energy-absorption box (7) is connected to a pushing block (9), the rear and front end of push rod (3) is welded with the pushing block (9) in the energy-absorption box of forward and backward bumper/spoiler and is formed one.
3. synchronous energy absorption device before and after the auto against according to right 1 or 2, it is characterized in that: be provided with many strut bars (10) between described front bumper (1) and two after cross members of rear bumper (2), the two ends of strut bar (10) are integrated with the rear cross beam welding of forward and backward bumper/spoiler respectively.
4. synchronous energy absorption device before and after the auto against according to right 3, is characterized in that: described energy-absorption box link span (8) is provided with two with the brace panel (11) of after cross member (5) weld together.
5. synchronous energy absorption device before and after the auto against according to right 4, is characterized in that: described front buffer beam (4) is double layer hollow Curved beam, and front buffer beam (4) welds by two identical arc components the Curved beam forming hollow.
6. synchronous energy absorption device before and after the auto against according to right 4, is characterized in that: described after cross member (5) is rectangular hollow straight beam.
7. synchronous energy absorption device before and after the auto against according to right 4, is characterized in that: described push rod (3) is the square pole of hollow.
8. synchronous energy absorption device before and after the auto against according to right 4, is characterized in that: described strut bar (10) is the square straight-bar of hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167072.5A CN103921746B (en) | 2014-04-24 | 2014-04-24 | Synchronous energy absorption device before and after auto against |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167072.5A CN103921746B (en) | 2014-04-24 | 2014-04-24 | Synchronous energy absorption device before and after auto against |
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| CN103921746A CN103921746A (en) | 2014-07-16 |
| CN103921746B true CN103921746B (en) | 2016-02-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106476891B (en) * | 2016-11-12 | 2018-09-28 | 杭州衡源汽车科技有限公司 | Electric automobile chassis system |
| CN108382339A (en) * | 2018-04-28 | 2018-08-10 | 攀枝花学院 | Automobile-used circular buffering hydraulic pressure girder steel |
| CN109829247A (en) * | 2019-03-04 | 2019-05-31 | 南京航空航天大学 | A kind of novel bionic bumper assembly and its multidisciplinary design optimization method |
| DE102019128374A1 (en) * | 2019-10-21 | 2021-04-22 | Bayerische Motoren Werke Aktiengesellschaft | Cross member arrangement for a battery electric motor vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6609740B2 (en) * | 2001-04-16 | 2003-08-26 | Shape Corporation | Bumper system with face-mounted energy absorber |
| CN1296228C (en) * | 2003-11-24 | 2007-01-24 | 张军利 | Anticollision device for automobile |
| US8496268B2 (en) * | 2008-01-24 | 2013-07-30 | Theodore & Associates Llc | Universal chassis |
| EP2531380B1 (en) * | 2010-02-01 | 2015-04-08 | Faurecia Exteriors GmbH | Energy-absorption system |
| CN202089010U (en) * | 2011-04-28 | 2011-12-28 | 浙江吉利汽车研究院有限公司 | Car front beam with energy-absorbing function |
| CN203318330U (en) * | 2013-05-24 | 2013-12-04 | 厦门理工学院 | Energy absorption structure of front collision of passenger vehicles |
| CN203805826U (en) * | 2014-04-24 | 2014-09-03 | 厦门理工学院 | Front and back synchronously-energy-absorbing device for car crash relief |
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