CN101186218A - Automobile longitudinal beam front section collision energy-absorbing structure - Google Patents
Automobile longitudinal beam front section collision energy-absorbing structure Download PDFInfo
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- CN101186218A CN101186218A CNA200710092802XA CN200710092802A CN101186218A CN 101186218 A CN101186218 A CN 101186218A CN A200710092802X A CNA200710092802X A CN A200710092802XA CN 200710092802 A CN200710092802 A CN 200710092802A CN 101186218 A CN101186218 A CN 101186218A
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- longitudinal beam
- front section
- guide channel
- distance
- beam front
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Abstract
The invention relates to a collision energy-absorbing structure of the front section of an automobile longitudinal beam. The two edges at the lower edge of the front section of the longitudinal beam are transversely provided with guide troughs which have the quantity of at least 6 and are sequentially backwards distributed from the front end of the front section of the longitudinal beam. The distance between the central points of adjacent guide troughs meets the conditions that the distance between the central point of the first guide trough and the central point of the second guide trough is less than the distance between the central points of subsequent guide troughs; the distance between the central points of all subsequent guide troughs are equal; all guide troughs are gradually narrowed according to the regulation of large front and small rear. When frontal collision occurs to the automobile, the energy is absorbed and deformed step by step by all guide troughs, thus achieving the energy-absorbing effect step by step and leading the invention to more effectively exert the energy absorbing efficacy and not to affect the rigidity and the strength of the front section of the longitudinal beam at the same time.
Description
Technical field
The present invention relates to the vehicle body collision safety design of automobile.
Background technology
Automobile longitudinal beam front section has important effect at automotive body structure, and the quality of its structure directly influences central collision, rigidity and the intensity of car load, and the structure in the energy-absorbing zone of longitudinal beam front section has directly influenced the result of central collision in collision process.So in the middle of present Automobile Body Design, in order to better meet safety requirements, the structure of this position of collision energy-absorbing is more and more come into one's own.
Automobile central collision process is a kind of absorption process to energy, directly influences the safety performance of automobile, and the energy-absorbing of guide channel then is the position of a key in the middle of this process.In the middle of whole central collision process, the structure of guide channel too by force or all can make too whole longeron can not be out of shape step by step or be out of shape irregular, the effect of out of reach energy-absorbing.Because the crash feature of vehicle all adopts the penetration type guide channel basically now, because this structure is soft excessively, do not increasing under the thick situation of part and part material, this can not satisfy the new model requirement of developing, and satisfies our demand with regard to the structure that requires us to develop to make new advances.
Summary of the invention
The objective of the invention is to propose a kind of automobile longitudinal beam front section collision energy-absorbing structure, design one simple and Rational structure solves the energy-absorbing problem in head-on crash under the situation that satisfies longitudinal beam front section rigidity, intensity etc., make its its energy-absorbing function of more effective performance.
Technical scheme of the present invention is as follows:
A kind of automobile longitudinal beam front section collision energy-absorbing structure, horizontally set guide channel on two seamed edges of the lower edge of longitudinal beam front section, guide channel has at least six, is distributed backward successively by the longitudinal beam front section front end.
Further, the distance between the adjacent guide channel center-point meets the following conditions: the distance between first and second guide channel center-point is less than the distance between follow-up each guide channel center-point, and the distance between follow-up each guide channel center-point equates.Preferably the distance between first and second guide channel center-point is the 1/3-1/2 of distance between follow-up each guide channel center-point.
In addition, each guide channel dwindles by certain size by pre-large post-small rule in the past backward gradually gradually.
When automobile runs into central collision, the power maximum of bearing in the front portion of longitudinal beam front section, the energy maximum that absorbs of fwd guide channel wherein, so the deflection at this position is also maximum, the absorption and the distortion that produce energy step by step with the structure of back guide channel, the design is by repeatedly to the intensity of part, and the rigidity of car load, mode, the cae analysis of central collision and real vehicle central collision test, final position to guide channel, number, size and spacing are all made the most rational design, just in time can reaching step by step, energy-absorbing reaches purpose, make its its energy-absorbing function of more effective performance, the rigidity and the intensity of while no effect on longitudinal-beam leading portion
Description of drawings
Fig. 1 is the scheme drawing of automobile longitudinal beam front section collision energy-absorbing structure.
Fig. 2 is the structural representation of a longitudinal beam front section longitudinal beam front section wherein.
Fig. 3 is the cross section enlarged drawing of wherein longitudinal beam front section.
The specific embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, this automobile longitudinal beam front section collision energy-absorbing structure is six guide channels of horizontally set 21,22,23,24,25,26 on two seamed edges of the lower edge of longitudinal beam front section 1, is distributed backward successively by longitudinal beam front section 1 front end.The center of first guide channel 21 is 20mm to anterior distance, and the distance between first and second guide channel 21,22 center-points is 40mm, and the distance between follow-up each guide channel center-point is 77mm.Each guide channel dwindles by pre-large post-small rule in the past backward gradually.First guide channel 21 of front end is 20mm by top to the distance of bottom as shown in Figure 1, but second guide channel 22 top just become 18mm to the distance of bottom, reduce gradually by this size of 2mm with six guide channels of this rule.
Claims (6)
1. automobile longitudinal beam front section collision energy-absorbing structure, it is characterized in that: be horizontally arranged with guide channel on two seamed edges of the lower edge of longitudinal beam front section, guide channel has at least six, is distributed backward successively by the longitudinal beam front section front end.
2. automobile longitudinal beam front section collision energy-absorbing structure according to claim 1, it is characterized in that the distance between the adjacent guide channel center-point meets the following conditions: the distance between first and second guide channel center-point is less than the distance between follow-up each guide channel center-point, and the distance between follow-up each guide channel center-point equates.
3. automobile longitudinal beam front section collision energy-absorbing structure according to claim 2 is characterized in that the distance between first and second guide channel center-point is the 1/3-1/2 of distance between follow-up each guide channel center-point.
4. automobile longitudinal beam front section collision energy-absorbing structure according to claim 3 is characterized in that the distance between first and second guide channel center-point is 40mm, and the distance between follow-up each guide channel center-point is 77mm.
5. according to claim 1,2 or 3 described automobile longitudinal beam front section collision energy-absorbing structures, it is characterized in that each guide channel dwindles by pre-large post-small rule in the past backward gradually.
6. automobile longitudinal beam front section collision energy-absorbing structure according to claim 4 is characterized in that first guide channel of front end is that radius is the arc structure of 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710092802XA CN101186218A (en) | 2007-09-30 | 2007-09-30 | Automobile longitudinal beam front section collision energy-absorbing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710092802XA CN101186218A (en) | 2007-09-30 | 2007-09-30 | Automobile longitudinal beam front section collision energy-absorbing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101186218A true CN101186218A (en) | 2008-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710092802XA Pending CN101186218A (en) | 2007-09-30 | 2007-09-30 | Automobile longitudinal beam front section collision energy-absorbing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN101186218A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381437A (en) * | 2010-08-30 | 2012-03-21 | 联合船舶设计发展中心 | Side-bend energy absorbing buffer stem |
| GB2494251A (en) * | 2011-09-02 | 2013-03-06 | Gm Global Tech Operations Inc | A vehicle bumper and crashbox assembly |
| WO2014086161A1 (en) * | 2012-12-04 | 2014-06-12 | 奇瑞汽车股份有限公司 | Front longitudinal beam energy-adsorption structure for vehicle |
| CN105501300A (en) * | 2015-12-16 | 2016-04-20 | 上汽通用五菱汽车股份有限公司 | Single cap type polygonal front longitudinal beam |
| CN105980241A (en) * | 2014-01-30 | 2016-09-28 | 标致雪铁龙集团 | Front longitudinal member of a motor vehicle and method for producing such a member |
-
2007
- 2007-09-30 CN CNA200710092802XA patent/CN101186218A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381437A (en) * | 2010-08-30 | 2012-03-21 | 联合船舶设计发展中心 | Side-bend energy absorbing buffer stem |
| GB2494251A (en) * | 2011-09-02 | 2013-03-06 | Gm Global Tech Operations Inc | A vehicle bumper and crashbox assembly |
| WO2014086161A1 (en) * | 2012-12-04 | 2014-06-12 | 奇瑞汽车股份有限公司 | Front longitudinal beam energy-adsorption structure for vehicle |
| CN105980241A (en) * | 2014-01-30 | 2016-09-28 | 标致雪铁龙集团 | Front longitudinal member of a motor vehicle and method for producing such a member |
| CN105980241B (en) * | 2014-01-30 | 2020-07-28 | 标致雪铁龙集团 | Front longitudinal member for a motor vehicle and method for producing such a longitudinal member |
| CN105501300A (en) * | 2015-12-16 | 2016-04-20 | 上汽通用五菱汽车股份有限公司 | Single cap type polygonal front longitudinal beam |
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