CN100572172C - A kind of front energy-absorbing structure of vehicle frame - Google Patents
A kind of front energy-absorbing structure of vehicle frame Download PDFInfo
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- CN100572172C CN100572172C CNB2008100892732A CN200810089273A CN100572172C CN 100572172 C CN100572172 C CN 100572172C CN B2008100892732 A CNB2008100892732 A CN B2008100892732A CN 200810089273 A CN200810089273 A CN 200810089273A CN 100572172 C CN100572172 C CN 100572172C
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- 230000001154 acute effect Effects 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention discloses a kind of front energy-absorbing structure of vehicle frame, comprise a crossbeam, two longerons and energy-absorbing box, crossbeam is connected on the longeron, longeron is box-like beam, front end is beloid shape from front to back, energy-absorbing box four limits have the energy-absorbing hole and are connected to the crossbeam front end, with longeron substantially on same line of centers.The outside, longeron front portion is a flat segments, and the inboard is acute angle with the outside from front to back, and downside is a flat segments also, and upside is acute angle with downside from front to back, forms the energy-absorbing district that is beloid shape, has the energy-absorbing hole in surrounding, energy-absorbing district.Crossbeam is that box-like beam and brace panel are welded on the longeron together.The front energy-absorbing structure of vehicle frame disclosed in this invention adopts two sections endergonic structures, conquassation fully when head-on crash; when offset collision, can transfer its energy to another longeron by the crossbeam actv., energy absorbing is more; the distortion of vehicle frame is also very desirable, and is highly beneficial to occupant's protection.
Description
Technical field
The present invention relates to a kind of front structure of vehicle frame, be used for the structure that can play good collision energy-absorbing effect on the body-chassis frame construction specifically.
Background technology
Present vehicle requires more and more higher to occupant's safety performance, increasing vehicle proposes higher requirement to the collision performance of vehicle frame, present most of vehicle frame all is thick by the material of consideration change frame member, material or handle by increasing tension member modes such as (strengthening plate etc.) as increasing, the antagonistic force of control frame member during frontal collision, deformation pattern, compression properties etc., but the attraction research of energy is fewer during impact.
Summary of the invention
The front structure of vehicle frame of the present invention adopts two sections endergonic structures, conquassation fully when head-on crash; when biasing is bumped, can transfer its energy to another longeron by the crossbeam actv., energy absorbing is more; the distortion of vehicle frame is also very desirable, and is highly beneficial to occupant's protection.
Concrete technical scheme disclosed in this invention is as follows.
A kind of front energy-absorbing structure of vehicle frame comprises a crossbeam, two longerons and energy-absorbing box, and crossbeam is connected on the longeron, longeron is box-like beam, front end is beloid shape from front to back, and energy-absorbing box four limits have the energy-absorbing hole and are connected to the crossbeam front end, with longeron substantially on same line of centers.The outside, longeron front portion is a flat segments, and the inboard is acute angle with the outside from front to back, and downside is a flat segments also, and upside is acute angle with downside from front to back, forms the energy-absorbing district that is beloid shape, has the energy-absorbing hole in surrounding, energy-absorbing district.Crossbeam is that box-like beam and brace panel are welded on the longeron together.Brace panel has reinforced rib, is positioned at crossbeam and the longeron bonded assembly outside.The anterior both sides up and down of crossbeam (3) are provided with reinforced rib.
Two energy-absorbing boxes of the forefront that energy absorber disclosed in this invention is included can impact conquassation fully in early stage, energy-absorbing portion of energy; The energy-absorbing box is connected on the crossbeam, and the impact energy actv. that monolateral longeron was subjected to when crossbeam energy actv. bumped biasing is passed on another longeron; Have the energy-absorbing hole on two four edges angles, conquassation fully when collision absorbs more energy.
Description of drawings
Fig. 1: the axle that waits of frame member of the present invention is schemed;
Fig. 2: the birds-eye view of frame member of the present invention;
Fig. 3: the front elevation of frame member of the present invention;
Fig. 4: the right elevation of frame member of the present invention;
The crossbeam of Fig. 5: Fig. 1 and longeron bonded assembly partial enlarged drawing;
The crossbeam of Fig. 6: Fig. 1 and longeron bonded assembly partial enlarged drawing;
Fig. 7: the positive simulation of vehicle frame of the present invention longeron deformation tendency figure.
Description of reference numerals:
1,2-energy-absorbing box; The 3-crossbeam; 4,5-brace panel; 6,7-longeron;
The 8-reinforced rib.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is specifically described.
As shown in Figure 1, crossbeam 3 is that box-like beam and brace panel 4,5 are welded on the longeron 6,7 together, and longeron 6,7 front ends are beloid shape from front to back, is welded into box-likely by outer panel and interior plate, on the limit of outer panel and interior plate, has the energy-absorbing hole.Crossbeam 3 front ends are added with energy-absorbing box 1,2, and four limits of energy-absorbing box also have the energy-absorbing hole, are connected with crossbeam 3 by welding or bolt, and energy-absorbing box 1,2 and longeron 6,7 are substantially on same line of centers.
Shown in Fig. 2,3, longeron 6, the 7 anterior outsides are flat segments, and the inboard is acute angle with the outside from front to back, and downside is a flat segments also, and upside is acute angle with downside from front to back, forms the energy-absorbing district that is beloid shape, and the surrounding in the energy-absorbing district has the energy-absorbing hole.
As shown in Figure 4, crossbeam 3 front portions are added with reinforced rib on the both sides up and down.
As shown in Figure 5, when crossbeam 3 is connected with longeron 6, be added with the brace panel 5 of band reinforced rib 8 in the outside, the left side is like this too with being connected of longeron 7.
As shown in Figure 6, when crossbeam 3 was connected with longeron 7, reinforced rib had been played at crossbeam interior plate flange place, and the right is like this too with being connected of longeron 6.
Fig. 7 shows when chassis side rail is subjected to the power F of the place ahead transmission, the deformation tendency of longeron.
When head-on crash takes place when, energy-absorbing box 1,2 in the rapid conquassation of contact initial stage, the absorption portion energy, simultaneously the power front is passed to longeron 6,7, longeron 6,7 are receiving energy-absorbing box 1,2 transmit after the next power, in preceding energy-absorbing district, owing to have an energy-absorbing hole, and the design of prismatic, the longeron front portion by the back to before, intensity more and more a little less than, at longeron 6,7 forefront because intensity is the most weak, at first produces plastic deformation, along with the continuation of collision is goed deep into, the power of transmitting is increasing, causes whole energy-absorbing district from front to back, conquassation step by step, effect such as Fig. 7, the effect of conquassation may be by regulating longeron the go forward size of tapering in energy-absorbing district and the position in energy-absorbing hole, quantity and size are determined.In the conquassation process, absorbed a large amount of impact energy (size of this segment length has determined what of absorption of impact energy), thereby, the impact energy of other parts is reduced greatly, realize passenger protection preferably more easily.
When offset collision takes place when; energy-absorbing box 2 is in the rapid conquassation of initial stage of contact; the absorption portion energy; power is passed on the longeron 7 simultaneously; longeron 7 is at first by conquassation, in the process of conquassation, along with the continuous shortening of longeron 7; crossbeam 3 and brace panel 5 are collaborative to be passed to the longeron 6 of opposite side with power, longeron 6 progressively part conquassation or distortion along with the conquassation distortion of longeron 7.In this process, energy-absorbing box 2 and longeron 7 complete conquassation absorb more energy, and longeron 6 part conquassation distortion has absorbed the energy of part, longeron 6 endergonic what mainly be to see the intensity of crossbeam and the rigidity of crossbeam and longeron connecting bridge.
The front energy-absorbing structure of the vehicle frame of as described above realizes that than being easier to simultaneously, cost is also comparatively cheap on the structure, can absorb more impact energy when head-on crash takes place, and can improve the safety guard-safeguard to the occupant preferably.
Claims (7)
1, a kind of front energy-absorbing structure of vehicle frame, comprise a crossbeam (3), two longerons (6,7), energy-absorbing box (1,2) and brace panel (5), crossbeam (3) is connected on the longeron (6,7), longeron (6,7) is box-like beam, front end is beloid shape from front to back, energy-absorbing box (1,2) is connected to crossbeam (3) front end, with longeron (6,7) substantially on same line of centers, brace panel (5) is positioned at the crossbeam (3) and the longeron bonded assembly outside.
2, the front energy-absorbing structure of vehicle frame according to claim 1, it is characterized in that: the anterior outside of longeron (6,7) is flat segments, the inboard is acute angle with the outside from front to back, downside also is a flat segments, upside is acute angle with downside from front to back, formation is the energy-absorbing district of beloid shape, has the energy-absorbing hole in surrounding, energy-absorbing district.
3, the front energy-absorbing structure of vehicle frame according to claim 1 and 2 is characterized in that: crossbeam (3) is box-like beam, and brace panel (4,5) is welded on the longeron (6,7) together.
4, the front energy-absorbing structure of vehicle frame according to claim 3 is characterized in that: described brace panel (5) has reinforced rib, is positioned at the crossbeam (3) and the longeron bonded assembly outside.
5, the front energy-absorbing structure of vehicle frame as claimed in claim 4 is characterized in that: the anterior both sides up and down of crossbeam (3) are provided with reinforced rib.
6, according to the front energy-absorbing structure of claim 4 or 5 described vehicle frames, it is characterized in that: crossbeam (3) and longeron (6,7) are when being connected, and reinforced rib has been played at crossbeam interior plate flange place.
7, according to the front energy-absorbing structure of claim 1,2,4, one of 5 described vehicle frames, it is characterized in that: four limits of energy-absorbing box (1,2) have the energy-absorbing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100892732A CN100572172C (en) | 2008-04-25 | 2008-04-25 | A kind of front energy-absorbing structure of vehicle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100892732A CN100572172C (en) | 2008-04-25 | 2008-04-25 | A kind of front energy-absorbing structure of vehicle frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101279613A CN101279613A (en) | 2008-10-08 |
| CN100572172C true CN100572172C (en) | 2009-12-23 |
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| CNB2008100892732A Active CN100572172C (en) | 2008-04-25 | 2008-04-25 | A kind of front energy-absorbing structure of vehicle frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167084A (en) * | 2011-03-23 | 2011-08-31 | 奇瑞汽车股份有限公司 | Front connecting structure of vehicle frame |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811518B (en) * | 2010-03-12 | 2011-08-10 | 重庆长安汽车股份有限公司 | Automobile engine nacelle curb girder front part with reinforced energy absorbing structure |
| ES2391521B1 (en) * | 2010-04-07 | 2013-10-17 | Universidad De Las Palmas De Gran Canaria | STRUCTURE FOR IMPACT ENERGY ABSORPTION IN MOTORIZED VEHICLES. |
| CN102180195A (en) * | 2011-04-26 | 2011-09-14 | 重庆长安汽车股份有限公司 | Car front-upper member bracket assembly |
| JP2013166420A (en) * | 2012-02-14 | 2013-08-29 | F Tech:Kk | Vehicle-body front structure member |
| FR3016851B1 (en) * | 2014-01-30 | 2016-01-22 | Peugeot Citroen Automobiles Sa | FRONT PANEL FOR A MOTOR VEHICLE AND METHOD FOR MANUFACTURING SUCH A BRANCARD. |
| CN104843068B (en) * | 2014-10-09 | 2018-02-23 | 北汽福田汽车股份有限公司 | Optimization method and vehicle frame, the vehicle of vehicle frame crashworthiness |
| CN104828143B (en) * | 2014-12-04 | 2017-02-01 | 北汽福田汽车股份有限公司 | collision energy-absorbing longitudinal beam and frame |
| CN106005019A (en) * | 2016-06-22 | 2016-10-12 | 华南理工大学 | Non-uniform filling type foamed aluminum energy absorption structure |
| US10214243B2 (en) * | 2017-07-11 | 2019-02-26 | Ford Global Technologies, Llc | Vehicle frame |
| CN109895722B (en) * | 2017-12-08 | 2023-12-15 | 宇通客车股份有限公司 | Energy absorption device and vehicle using same |
| CN109131577A (en) * | 2018-09-21 | 2019-01-04 | 吉利汽车研究院（宁波）有限公司 | Front rail structure and subframe assembly |
-
2008
- 2008-04-25 CN CNB2008100892732A patent/CN100572172C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167084A (en) * | 2011-03-23 | 2011-08-31 | 奇瑞汽车股份有限公司 | Front connecting structure of vehicle frame |
| CN102167084B (en) * | 2011-03-23 | 2012-07-11 | 奇瑞汽车股份有限公司 | Front connecting structure of vehicle frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101279613A (en) | 2008-10-08 |
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