CN102490789A - Car front longitudinal beam structure capable of improving collision performance - Google Patents
Car front longitudinal beam structure capable of improving collision performance Download PDFInfo
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- CN102490789A CN102490789A CN2011104306633A CN201110430663A CN102490789A CN 102490789 A CN102490789 A CN 102490789A CN 2011104306633 A CN2011104306633 A CN 2011104306633A CN 201110430663 A CN201110430663 A CN 201110430663A CN 102490789 A CN102490789 A CN 102490789A
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- transition phase
- distortion
- collision performance
- direction recess
- car front
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Abstract
The invention discloses a car front longitudinal beam structure capable of improving collision performance. The car front longitudinal beam structure capable of improving collision performance comprises a front longitudinal beam body with a sealed cavity shaped structure and is characterized in that the front longitudinal beam body comprises a front section, a transitional section and a back section; in a vertical section, the transitional section protrudes out of the front section and the back section; an engine suspension hole is formed at the front section; a deformation guide recess is formed at the lower part of the side surface of the transitional section; a deformation guide reinforcing rib is arranged at the top surface of the transitional section; and the deformation guide recess is arranged along the transitional section of the front longitudinal beam from top to bottom. The car front longitudinal beam structure capable of improving collision performance, disclosed by the invention, has the advantages of simple structure, and skillful design; and on the basis of not increasing the car cost, the collision safety of the car is effectively enhanced so that a power assembly sinks, and 20% beneficial effects of the safety performance of 100% direct collision and 40% biased collision are improved.
Description
Technical field
The present invention relates to the auto parts and components field, specifically is a kind of car girder work that improves collision property.
Background technology
When colliding for self-supporting body, the car front side member is main stressed member.How to be out of shape during the collision of car front side member, with the safety that directly determines occupant in the crew module.Carry dynamic assembly on the longeron of car, after being clashed, because the crumple of longeron distortion, dynamic assembly is easy to invade fireproof brickwork, gets into the crew module, and crew module passenger is caused very big injury.The patent No. is that 200810216368.6 patent of invention discloses a kind of front stringpiece of vehicle body; It has set up the attaching parts of one three groove shape between longeron front portion and longeron rear portion; Can when bumping, impact be shared towards horizontal direction, not invade the problem that the crew module damages easily but still solve dynamic assembly.
Summary of the invention
The objective of the invention is in order to solve the deficiency that the above-mentioned background technology exists; Propose a kind of simple in structure, when collision takes place; Make front side member do distortion, make engine parts, to improve the car front rail structure that improves collision performance of crew module's safety to sinking.
In order to realize above purpose; A kind of car front rail structure that improves collision performance provided by the invention; The front side member beam body that comprises enclosed cavity shape structure; Front side member beam body comprises leading portion, transition phase and back segment, and transition phase is outstanding in horizontal surface is higher than leading portion and back segment, and the engine mounting hole is located on the leading portion; The medial surface bottom of transition phase is provided with the distortion direction recess, and the end face of transition phase is provided with distortion guiding additional strengthening, said distortion direction recess be along the transition phase of front side member by last under the direction setting.
Described distortion guiding additional strengthening can be the distortion guiding reinforced rib that on the transition phase end face, is provided with; Also can be the thickness of the thickness of transition phase top board greater than the transition phase base plate; Or distortion guiding reinforced rib is set on the side panel of transition phase; Or the thickness on the side panel top of transition phase is greater than the thickness of the side panel bottom of transition phase, also or the combination of said structure.
The height of above-mentioned leading portion, transition phase and back segment all is meant the linear shape at vertical cross-section of front side member beam body.
The end face of said transition phase is provided with end face outside face or the inside face that distortion guiding reinforced rib is front side member transition phase place distortion guiding reinforced rib is set.
Car front side member of the present invention is employed in has the outstanding transition phase structure that is higher than leading portion and back segment in the horizontal surface; The medial surface bottom of transition phase is provided with the distortion direction recess; The end face of transition phase is provided with distortion guiding reinforced rib; Make on the intensity distributions of beam, the top of transition phase will be higher than the transition phase bottom.
At least two of said distortion direction recess, the interval is located at the bottom, side of transition phase, and the directions of at least two distortion direction recess are pointed to the same center of circle or the outstanding high point of transition phase B.
The bottom, side that said distortion direction recess is located at transition phase at interval has three, and the direction of three distortion direction recess is pointed to the same center of circle or the outstanding high point of transition phase B.
The direction of above-mentioned three distortion direction recess is pointed to the extended lines that the same center of circle refers to three distortion direction recess and is intersected in the same center of circle, or is not intersected in the same center of circle, forms in twos and intersects but tend to the same center of circle.
The extended line that the outstanding high point of the transition phase B of the direction sensing of above-mentioned three distortion direction recess refers to three distortion direction recess is intersected in outstanding transition phase height point B; Or be not intersected in the high point of outstanding transition phase B, form crossing in twos but tend to the outstanding high point of transition phase B.
The high point of said transition phase B is the highest position that transition phase is given prominence to respect to the horizontal plane, to the transition phase of arc, is exactly the extreme higher position of arc at horizontal surface.
The distributed architecture of above-mentioned distortion direction recess makes the distortion direction recess be the fan-shaped distribution of disc, has provided the deformation space of collision like this, guiding distortion, the particularly downward distortion of the relative back segment of leading portion.
The width L2 of said distortion direction recess bottom is greater than the width L1 on distortion direction recess top.Can be that the upwards little structure of width gradual change is arranged down.
The depth H 2 of said distortion direction recess bottom is greater than the depth H 1 on distortion direction recess top.Can be that the upwards shallow structure of degree of depth gradual change is arranged down.
The structure of above-mentioned distortion direction recess width also is further to realize the assurance of guiding front side member downward distortion of leading portion when collision.
The height point B of said transition phase forward and have between the horizontal surface 1～10 ° angle, transition phase height point B backward and 11～35 ° angle arranged between the horizontal surface.
Said transition phase is an arc, and leading portion is linear portion or segment of curve, and back segment is linear portion or segment of curve; The high point of arc B puts the distance of B to the back segment aft end face to the distance of leading portion front end face greater than the arc height.
The linear portion of said leading portion and the arc of transition phase are tangent, and the linear portion of back segment and the arc of transition phase are tangent.
Said transition phase is an arc, and leading portion is the segment of curve tangent with the arc of transition phase, and back segment is the segment of curve tangent with the arc of transition phase.
Technique scheme makes that the linear of front side member is to have low, high and low " tortuous bow " shape, when realizing front side member collision guiding, is easy to make.The linear high some B angle forward of above-mentioned front side member is less than backward angle, and high some B fully takes into account the arrangement space of part general name between the vehicle front side member and the design of vehicle type structure to the distance of front and back end.
The sectional area of the vertical cross-section of said back segment leading section is less than the sectional area of the vertical cross-section of back segment rearward end.The front side member that is back segment partly is a variable section structure, can be the big structure of gradual change.
Transition phase is also referred to as deforming zone.
The whose forwardmost end portions height of front side member is lower than the main deforming zone of longeron slightly, make front side member have on the whole one arc, arched position is after suspension point, at the longeron deforming zone; Deforming zone medial surface at front side member increases the distortion direction recess, points to the fan-shaped distribution that is of the center of circle or the high point of sensing B, and is provided with distortion guiding reinforced rib at the front side member inner top surface.After car bumps, because the deforming zone medial surface of front side member increases the distortion direction recess, and the distortion on front side member top guiding reinforced rib; From front side member downwarping is out of shape; Because the engine mounting hole is positioned at the deforming zone front portion, thereby engine installation point is sunk, directly cause dynamic assembly to sink; Avoid dynamic assembly to invade the purpose that the occupant is damaged behind the driving compartment thereby reach, effectively guarantee occupant's life security.It is simple in structure, is skillfully constructed, and on the basis that does not increase integral vehicle cost, but effectively improves the collision safety performance of car, and dynamic assembly sinks, and improves the safety performance 20% that 100% central collision and 40% biasing are bumped.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is principle of the invention figure;
Fig. 3 is the structural representation of transition phase of the present invention;
Fig. 4 is an I-I position cutaway view among Fig. 3;
Fig. 5 is a car load assembly drowing of the present invention;
Among the figure: the 1-leading portion; The 2-back segment; The 3-transition phase; 1.1-engine mounting hole; 3.1-distortion direction recess; 3.2-distortion guiding reinforced rib; The horizontal working direction of R-vehicle; The high point of B-; The height point of α-transition phase forward and the angle between horizontal surface; The height point of β-transition phase backward and the angle between the horizontal surface; The width of L1-distortion direction recess bottom; The width on L2-distortion direction recess top; The degree of depth on H1-distortion direction recess top; The degree of depth of H2-distortion direction recess bottom.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Embodiment: as shown in Figure 1; A kind of car front rail structure that improves collision performance of institute of the present invention design-calculated; The front side member beam body that comprises enclosed cavity shape structure, it is that the global sections that is welded is the enclosed cavity shape structure of box-like by after interior half shell and the outer half shell punching press.
Front side member beam body comprises leading portion 1, transition phase 3 and back segment 2.Transition phase 3 is also referred to as deforming zone.Transition phase 3 outstanding leading portion 1 and the back segments 2 of being higher than in horizontal surface, engine mounting hole 1.1 is located on the leading portion 1.
As shown in Figure 2, the height point B of said transition phase forward and the angle between the horizontal surface be 8 °, the height point B of transition phase backward and the angle β between the horizontal surface be 30 °.Said transition phase 3 is arcs, and leading portion 1 is that linear portion is linear, and back segment 2 is that linear portion is linear; The arc of the linear portion of said leading portion 1 and transition phase 3 is tangent, and the arc of the linear portion of back segment 2 and transition phase 3 is tangent.The high point of arc B puts the distance of B to back segment 2 aft end faces to the distance of leading portion 1 front end face greater than the arc height.The sectional area of the vertical cross-section of said back segment 2 leading sections is less than the sectional area of the vertical cross-section of back segment 2 rearward end.
Technique scheme makes that the linear of front side member is to have low, high and low " tortuous bow " shape, when realizing front side member collision guiding, is easy to make.Above-mentioned linear high some B angle forward is less than backward angle, and high some B fully takes into account the arrangement space of part assembly between the vehicle front side member and the design of vehicle type structure to the distance of front and back end.
Low, the high and low linear structure of above-mentioned front side member can be that the multistage curve of gradual change constitutes, and high some B is a deforming zone at transition phase 3, or has straight line, curve (arc), straight line to constitute.
Like Fig. 3 and shown in Figure 4, the end face outside face of said transition phase 3 is provided with distortion guiding reinforced rib 3.2; Distortion guiding reinforced rib 3.2 strides across the height point B of transition phase arc.The medial surface bottom of said transition phase 3 is provided with three distortion direction recess 3.1 by last direction from down, and distortion direction recess 3.1 is the fan-shaped distribution of disc, and three directions of being out of shape direction recess 3.1 are pointed to the height point B of the same center of circle or outstanding transition phase 3.With one of them distortion direction recess 3.1 is example, and the width L2 of distortion direction recess bottom is greater than the width L1 on distortion direction recess top, and the depth H 2 of distortion direction recess 3.1 bottoms is greater than the depth H 1 on distortion direction recess 3.1 tops.On the intensity distributions of beam, the top of transition phase 3 will be higher than transition phase 3 bottoms.
The distributed architecture of above-mentioned distortion direction recess 3.1 shows makes distortion direction recess 3.1 be the fan-shaped distribution of disc, has provided the deformation space of collision like this, guiding distortion, the particularly downward distortion of leading portion 1 relative back segment 2.The structure of above-mentioned distortion direction recess 3.1 width and the degree of depth also is further to realize the assurance of the downward distortion of guiding front side member when collision.
Said distortion direction recess 3.1 is arranged on transition phase 3 medial surface bottoms, and its top is not provided with distortion direction recess 3.1, and 1/3 regional location on front side member (transition phase 3) medial surface top in the present embodiment is not out of shape direction recess 3.1.It is non-through slot.
Claims (12)
1. car front rail structure that improves collision performance comprises the front side member beam body of enclosed cavity shape structure, and it is characterized in that: front side member beam body comprises leading portion (1), transition phase (3) and back segment (2); In vertical cross-section, transition phase (3) is outstanding to be higher than leading portion (1) and back segment (2), and engine mounting hole (1.1) are located on the leading portion (1); The bottom, side of transition phase (3) is provided with distortion direction recess (3.1), and the top of transition phase (3) is provided with distortion guiding additional strengthening, said distortion direction recess (3.1) be along front side member transition phase (3) by last under the direction setting.
2. according to the said car front rail structure that improves collision performance of claim 1; It is characterized in that: (3.1) at least two of said distortion direction recess; Be located at the bottom, side of transition phase (3) at interval, the direction of at least two distortion direction recess (3.1) is pointed to the same center of circle or the outstanding high point of transition phase (3).
3. according to claim 1 or the 2 said car front rail structures that improve collision performance; It is characterized in that: the medial surface bottom that said distortion direction recess (3.1) is located at transition phase (3) at interval has three, and the direction of three distortion direction recess (3.1) is pointed to the same center of circle or the outstanding high point of transition phase (3).
4. according to the said car front rail structure that improves collision performance of claim 3, it is characterized in that: the width of said distortion direction recess bottom is greater than the width on distortion direction recess top.
5. according to the said car front rail structure that improves collision performance of claim 3, it is characterized in that: the degree of depth of said distortion direction recess bottom is greater than the degree of depth on distortion direction recess top.
6. according to the said car front rail structure that improves collision performance of claim 1, it is characterized in that: the height point of said transition phase (3) forward and have between the horizontal surface 1～10 ° angle, transition phase (3) height point backward and 11～35 ° angle arranged between the horizontal surface.
7. according to claim 1 or 2 or 4 or the 5 or 6 said car front rail structures that improve collision performance; It is characterized in that: said transition phase (3) is an arc; Leading portion (1) is linear portion or segment of curve; Back segment (2) is linear portion or segment of curve, and the distance that the arc height is put leading portion (1) front end face is put the distance of back segment (2) aft end face greater than the arc height.
8. according to the said car front rail structure that improves collision performance of claim 7, it is characterized in that: the arc of the linear portion of said leading portion (1) and transition phase (3) is tangent, and the arc of the linear portion of back segment (2) and transition phase (3) is tangent.
9. according to the said car front rail structure that improves collision performance of claim 7; It is characterized in that: said transition phase (3) is an arc; Leading portion (1) is the tangent segment of curve of arc with transition phase (3), and back segment (2) is the tangent segment of curve of arc with transition phase (3).
10. according to claim 1 or the 8 or 9 said car front rail structures that improve collision performance, it is characterized in that: the sectional area of the vertical cross-section of said back segment (2) leading section is less than the sectional area of the vertical cross-section of back segment (2) rearward end.
11. according to the said car front rail structure that improves collision performance of claim 1, it is characterized in that: said distortion guiding additional strengthening is the distortion guiding reinforced rib (3.2) that is provided with on transition phase (3) end face.
12. according to the said car front rail structure that improves collision performance of claim 1, it is characterized in that: said distortion guiding reinforced rib (3.2) is crossed over the high point of transition phase (3) end face and is connected with transition phase (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430663.3A CN102490789B (en) | 2011-12-20 | 2011-12-20 | Car front longitudinal beam structure capable of improving collision performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430663.3A CN102490789B (en) | 2011-12-20 | 2011-12-20 | Car front longitudinal beam structure capable of improving collision performance |
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| CN102490789A true CN102490789A (en) | 2012-06-13 |
| CN102490789B CN102490789B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110430663.3A Active CN102490789B (en) | 2011-12-20 | 2011-12-20 | Car front longitudinal beam structure capable of improving collision performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110884569A (en) * | 2018-09-11 | 2020-03-17 | 本田技研工业株式会社 | Vehicle body front structure |
| CN113147914A (en) * | 2021-05-25 | 2021-07-23 | 东风汽车集团股份有限公司 | Auxiliary frame structure before steel aluminium mixed type |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004345466A (en) * | 2003-05-21 | 2004-12-09 | Nissan Motor Co Ltd | Vehicle body front part skeleton structure |
| CN2883122Y (en) * | 2005-12-29 | 2007-03-28 | 北汽福田汽车股份有限公司 | Deforme guider for face-to-face collision and autocar having the same |
| JP2008094309A (en) * | 2006-10-13 | 2008-04-24 | Press Kogyo Co Ltd | Shock absorbing structure for vehicle frame |
| CN201761539U (en) * | 2010-07-12 | 2011-03-16 | 浙江吉利汽车研究院有限公司 | Reinforcing type front longitudinal beam of automobile |
| CN201761542U (en) * | 2010-05-28 | 2011-03-16 | 浙江吉利汽车研究院有限公司 | Front longitudinal beam of automobile |
| CN201816646U (en) * | 2010-07-28 | 2011-05-04 | 浙江吉利汽车研究院有限公司 | Energy-absorbing external girder plate |
| CN201980295U (en) * | 2011-03-22 | 2011-09-21 | 奇瑞汽车股份有限公司 | Front longitudinal beam energy absorption structure |
| CN202378962U (en) * | 2011-12-20 | 2012-08-15 | 东风汽车公司 | Car front longitudinal beam structure with improved collision performance |
-
2011
- 2011-12-20 CN CN201110430663.3A patent/CN102490789B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004345466A (en) * | 2003-05-21 | 2004-12-09 | Nissan Motor Co Ltd | Vehicle body front part skeleton structure |
| CN2883122Y (en) * | 2005-12-29 | 2007-03-28 | 北汽福田汽车股份有限公司 | Deforme guider for face-to-face collision and autocar having the same |
| JP2008094309A (en) * | 2006-10-13 | 2008-04-24 | Press Kogyo Co Ltd | Shock absorbing structure for vehicle frame |
| CN201761542U (en) * | 2010-05-28 | 2011-03-16 | 浙江吉利汽车研究院有限公司 | Front longitudinal beam of automobile |
| CN201761539U (en) * | 2010-07-12 | 2011-03-16 | 浙江吉利汽车研究院有限公司 | Reinforcing type front longitudinal beam of automobile |
| CN201816646U (en) * | 2010-07-28 | 2011-05-04 | 浙江吉利汽车研究院有限公司 | Energy-absorbing external girder plate |
| CN201980295U (en) * | 2011-03-22 | 2011-09-21 | 奇瑞汽车股份有限公司 | Front longitudinal beam energy absorption structure |
| CN202378962U (en) * | 2011-12-20 | 2012-08-15 | 东风汽车公司 | Car front longitudinal beam structure with improved collision performance |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110884569A (en) * | 2018-09-11 | 2020-03-17 | 本田技研工业株式会社 | Vehicle body front structure |
| CN113147914A (en) * | 2021-05-25 | 2021-07-23 | 东风汽车集团股份有限公司 | Auxiliary frame structure before steel aluminium mixed type |
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| Publication number | Publication date |
|---|---|
| CN102490789B (en) | 2014-03-12 |
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