CN102745158A - Automobile energy-absorbing box - Google Patents
Automobile energy-absorbing box Download PDFInfo
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- CN102745158A CN102745158A CN2012100290471A CN201210029047A CN102745158A CN 102745158 A CN102745158 A CN 102745158A CN 2012100290471 A CN2012100290471 A CN 2012100290471A CN 201210029047 A CN201210029047 A CN 201210029047A CN 102745158 A CN102745158 A CN 102745158A
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Abstract
The invention discloses an automobile crash box and aims at overcoming defects of unobvious energy absorbing effects of existing automobile energy-absorbing boxes. The automobile crash box comprises an energy-absorbing box body which is of an A-shaped structure, the energy-absorbing box body comprises a box body and a box cover which are connected with each other to form a cavity structure, the connection portion of the box body and the box cover is of a nested structure, the top end of the energy-absorbing box body serves as a front connection portion, two connection feet are arranged at the bottom end of the energy-absorbing box body, a plurality of transverse energy-absorbing grooves are arranged on two inclined side surfaces of the energy-absorbing box body respectively, sections of the inclined surfaces are wave-shaped, the energy-absorbing grooves are located on the sections, energy-absorbing holes are arranged on a board of the bottom surface of the box body and a board of the bottom surface of the box cover respectively, and the edge of each side of the energy-absorbing holes is wave-shaped. When the energy-absorbing box is hit, the stress direction of the energy-absorbing box is dispersed from the top end to the bottom end of the energy-absorbing box, so that the energy dispersion is facilitated when the box is hit, and the energy-absorbing effect is good.
Description
Technical field
The present invention relates to a kind of vehicle anticollision damper element, more particularly, it relates to a kind of tangible vehicle energy absorption box of energy-absorbing effect on the automobile that is installed in.
Background technology
Automobile has become the walking-replacing tool of human trip, has improved human work and life efficient greatly, and meanwhile, automotive crash safety also more and more comes into one's own.The energy absorption ability of auto body is also more and more important to passenger's in the car protective effect.The collision performance of automobile is a crucial aspect in the design of automobile overall security.In present automobile design, normally adopt the bumper assembly that is installed in automotive front and afterbody to guarantee that the carriage body construction framework does not receive havoc under low speed collision, thereby guarantee the safety of interior member of car and car body structure itself.In order to absorb the kinetic energy of bump as much as possible, in present bumper assembly design, tend to add a deformation element, promptly so-called collision energy absorbing box.But the energy-absorbing box that uses now, simple in structure, energy-absorbing effect is not obvious.
Chinese patent publication No. CN101712305A, date of publication on May 26th, 2010, the name of invention is called vehicle energy absorption box; Have the energy-absorbing box body of both ends open, the energy-absorbing box body is vertically stepped along vehicle body, the energy-absorbing box body be connected to be used for the automobile front beam bonded assembly before connecting panel be used for automobile front side member bonded assembly after connecting panel; The energy-absorbing box conquassation distortion of step structure absorbed energy when the automobile peace bumped; Avoid injury to the occupant, the energy-absorbing box of this structure in buffering energy-absorbing, receive force direction along vehicle body vertically; The stressed strong point has only two positions, front-end and back-end of energy-absorbing box, the collapse energy-absorption DeGrain of energy-absorbing box.
Summary of the invention
The present invention has overcome the unconspicuous deficiency of existing vehicle energy absorption box energy-absorbing effect, and a kind of vehicle energy absorption box is provided, and energy-absorbing effect is good when automobile bumps, and guarantees occupant's safety.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of vehicle energy absorption box comprises the energy-absorbing box body; The energy-absorbing box body is A font structure, and the energy-absorbing box body comprises box body and lid, box body and the lid formation cavity body structure that links together; Box body and lid connecting bridge are the cover stack structure; The top of energy-absorbing box body is preceding connecting portion, and energy-absorbing box body bottom is two and connects hoof, is respectively equipped with some horizontal energy-absorbing grooves on two bevelled sides about the energy-absorbing box body; There is being the position undulate of energy-absorbing groove in the cross section of two inclined sides; Be respectively equipped with the energy-absorbing hole on the plate face of on the plate face of box bottom and lid bottom surface, the edge on each limit, energy-absorbing hole is undulate all, and two the indent troughs near the wavy edge of the side that tilts in energy-absorbing hole are corresponding one by one with energy-absorbing groove position.The preceding connecting portion on energy-absorbing box body top is fixedly connected on the automobile front cross rail, and two connection hoof of energy-absorbing box body bottom are fixedly connected on the automobile cabin, and when automobile bumped, the energy-absorbing box body absorbed energy, reduces the injury to the occupant.The energy-absorbing box body is the A font; Left and right sides face tilt, the force direction that receives that the energy-absorbing box is received when clashing into is to begin from the top to disperse to the bottom of energy-absorbing box along two direction of tilt to come, energy disperses when helping colliding; The energy-absorbing effect of energy-absorbing box is good, guarantees occupant's safety.Energy-absorbing crumple when energy-absorbing groove and energy-absorbing hole help the collision of energy-absorbing box increases energy-absorbing effect.Connect groove of formation between the hoof at two, help the crumple of energy-absorbing box.Trapezoidal energy-absorbing hole is than the top of short last base near the energy-absorbing box, and long bottom is near the bottom of energy-absorbing box.Energy-absorbing hole undulate helps the crumple distortion energy-absorbing of energy-absorbing box.Box body and lid connecting bridge are the cover stack structure, the parts that the end face at box body and lid edge does not offset with it, and box body and lid to the other side's direction crumple, increase energy-absorbing effect more easily when therefore bumping.
As preferably, two the indent troughs near the wavy edge of the side that tilts in energy-absorbing hole are corresponding one by one with energy-absorbing groove position.The trough of energy-absorbing hole wavy edge is corresponding one by one with energy-absorbing groove position, and trough and energy-absorbing groove all are indents, and is just less at the width of the energy-absorbing box panel of their relative positions, helps the crumple distortion of energy-absorbing box.
As preferably, the leaning angle of two inclined sides is 10 ° ~ 30 ° about the energy-absorbing box body.Less to the energy dispersion when the too little energy-absorbing box in inclination angle collides, inclination angle too big energy-absorbing box intensity reduces, very easily distortion, and energy-absorbing box bonded assembly reliability is low.
As preferably, the energy-absorbing groove has four, and the degree of depth of energy-absorbing groove is 1:1 ~ 1:1.5 with the ratio of width.Article four, the energy-absorbing groove is set in qually spaced on the energy-absorbing box body bevelled side, helps the crumple energy-absorbing.The degree of depth of energy-absorbing groove and the ratio of width will reduce the intensity of whole energy-absorbing box too greatly, and the degree of depth of energy-absorbing groove is not good with the too little energy-absorbing effect of energy-absorbing box that will make of ratio of width.The degree of depth of energy-absorbing groove and the ratio of width had both helped guaranteeing the intensity of energy-absorbing box in 1:1 ~ 1:1.5 scope, help guaranteeing the energy-absorbing effect of energy-absorbing box.
As preferably, the degree of depth of lid is identical with the degree of depth of box body, and the degree of depth of box body is 2:1 ~ 3:1 with the ratio of the width of cover stack structure.Their ratio is suitable, and the cavity size that makes box body and lid be joined together to form cavity structure had suitably both satisfied the energy-absorbing effect that the energy-absorbing box requires, and had satisfied the requirement of strength of energy-absorbing box again.The width of cover stack structure had suitably both satisfied the Joint strenght of box body and lid, and box body and lid are to the other side's direction crumple when helping colliding again.
As preferably, the end face of preceding connecting portion is a hatch frame, and preceding connecting portion end face edge is provided with inside flange, and the angle position of preceding connecting portion end face edge is provided with angle reduction breach.Preceding connecting portion is the welding upper junction plate earlier, is detachably connected on the front cross rail through connecting panel then, and flange has made things convenient for the welding of preceding connecting portion and connecting panel.Angle reduction breach has reduced the intensity of preceding connecting portion angle position, helps the crumple energy-absorbing of energy-absorbing box.
As preferably, the end face that connects hoof is a hatch frame, connects the hoof end face edge and is provided with inside flange, and the angle position that connects the hoof end face edge is provided with angle reduction breach.The connection hoof of energy-absorbing box is the welding upper junction plate earlier, is detachably connected on the automobile cabin through connecting panel then, and flange has made things convenient for the welding that connects hoof and connecting panel.Angle reduction breach has reduced to connect the intensity of hoof angle position, helps the crumple energy-absorbing of energy-absorbing box.
As preferably, two bevelled construction profiles symmetries about the energy-absorbing box body, the bevelled side comprises leading portion face, stage casing face and back segment face; The energy-absorbing groove is arranged on the face of stage casing; The leading portion face is the arc of indent, and the back segment face is for connecting a side of hoof, and the back segment face is the arc of evagination; The leading portion face is identical with back segment face length degree, and the length ratio of stage casing face and back segment face is 1.5:1 ~ 2:1.Two bevelled construction profiles symmetry, the collision energy-absorbing box stressed evenly, energy-absorbing effect is good.The collision energy-absorbing box is stressed to be that the leading portion face is the arc of indent, helps the inside crumple distortion of energy-absorbing box from the top of energy-absorbing box to the bottom, and the arc that the back segment face is evagination helps the outside crumple distortion of energy-absorbing box.At leading portion face, stage casing face and back segment face respectively as a crumple energy-absorbing district; And the energy-absorbing groove is arranged on the face of stage casing as the more energy-absorbing district of energy-absorbing; Therefore the leading portion face is identical with back segment face length degree; The length ratio of stage casing face and back segment face is 1.5:1 ~ 2:1, makes the energy-absorbing effect of whole energy-absorbing box reach an optimal state.
As preferably, two connection locations that connect hoof and energy-absorbing box body are provided with fillet.Connect round-corner transition between hoof and the energy-absorbing box body, help the crumple of energy-absorbing box.
Compared with prior art; The invention has the beneficial effects as follows: the preceding connecting portion of (1) energy-absorbing box is fixedly connected on the automobile front cross rail, and two of the energy-absorbing box connect hoof and are fixedly connected on the automobile cabin, when automobile bumps; The energy-absorbing box absorbs energy, reduces the injury to the occupant; (2) the energy-absorbing box body is the A font; Left and right sides face tilt, the force direction that receives that the energy-absorbing box is received when clashing into is to begin from the top to disperse to the bottom of energy-absorbing box along two direction of tilt to come, energy disperses when helping colliding; The energy-absorbing effect of energy-absorbing box is good, guarantees occupant's safety; (3) trough of energy-absorbing hole wavy edge is corresponding one by one with energy-absorbing groove position, and trough and energy-absorbing groove all are indents, and is just less at the width of the energy-absorbing box panel of their relative positions, helps the crumple distortion of energy-absorbing box.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is a front elevation of the present invention;
Among the figure: 1, box body, 2, lid, 3, preceding connecting portion, 4, connect hoof, 5, the energy-absorbing groove, 6, the energy-absorbing hole, 7, flange, 8, angle reduction breach, 9, the leading portion face, 10, the stage casing face, 11, the back segment face, 12, the cover stack structure.
The specific embodiment
Pass through specific embodiment below, and combine accompanying drawing, technical scheme of the present invention is done further to specifically describe:
Embodiment: a kind of vehicle energy absorption box (referring to accompanying drawing 1, accompanying drawing 2), comprise the energy-absorbing box body, the energy-absorbing box body is A font structure, and the energy-absorbing box body comprises box body 1 and lid 2, and box body 1 is the blanked part of sheet uniform thickness with lid 2.Box body 1 constitutes cavity body structure with lid 2 weld togethers; Box body 1 is cover stack structure 12 with lid 2 connecting bridges; The degree of depth of lid 2 is identical with the degree of depth of box body 1; The degree of depth of box body 1 is 2:1 ~ 3:1 with the ratio of the width of cover stack structure 12, and the degree of depth of present embodiment box body 1 is 2:1 with the ratio of the width of cover stack structure 12.The welding then together of the box body 1 of cover stack structure 12 and the overlapping edges of lid 2.Because connection location is a cover stack structure 12, the parts that the end face at box body 1 and lid 2 edges does not offset with it, box body 1 and the easier direction crumple to the other side of lid 2 increase energy-absorbing effect when therefore bumping.The top of energy-absorbing box body is preceding connecting portion 3, and the end face of preceding connecting portion 3 is a hatch frame, and preceding connecting portion 3 end face edge are provided with inside flange 7, and the angle position of preceding connecting portion 3 end face edge is provided with angle reduction breach 8.The flange 7 of preceding connecting portion 3 and the connection location round-corner transition of energy-absorbing box body, each bar flange 7 of connecting portion 3 was separated from each other before angle reduction breach 8 made, and helped the crumple energy-absorbing of energy-absorbing box in this position.Energy-absorbing box body bottom is that two connection locations that connect 4, two connections of hoof hoof 4 and energy-absorbing box body are provided with fillet, and fillet is located in two grooves that connect between the hoof 4.The end face that connects hoof 4 is a hatch frame, connects hoof 4 end face edge and is provided with inside flange 7, and the angle position that connects hoof 4 end face edge is provided with angle reduction breach 8.Two bevelled construction profile symmetries about the energy-absorbing box body.About the leaning angle of two inclined sides be 10 ° ~ 30 °, present embodiment you, the energy-absorbing box body about the leaning angle of two inclined sides be 15 °.Be respectively equipped with four horizontal energy-absorbing grooves 5 on two bevelled sides about the energy-absorbing box body, energy-absorbing groove 5 spaced sets, the degree of depth of energy-absorbing groove 5 is 1:1 ~ 1:1.5 with the ratio of width, the degree of depth of present embodiment energy-absorbing groove 5 is 1:1 with the ratio of width.The position of bevelled side between two energy-absorbing grooves 5 is the arc of evagination; There is being the position undulate of energy-absorbing groove 5 in the cross section of two inclined sides; Be respectively equipped with energy-absorbing hole 6 on the plate face of on the plate face of box body 1 bottom surface and lid 2 bottom surfaces, 6 cross sections, energy-absorbing hole are isosceles trapezoid, and trapezoidal energy-absorbing hole 6 is than the top of short last base near the energy-absorbing box; Long bottom is near the bottom of energy-absorbing box, two waists in trapezoidal energy-absorbing hole 6 respectively with about two bevelled parallel sided.The edge on 6 each limit, trapezoidal energy-absorbing hole is undulate all; 6 two the indent troughs near the wavy edge of the side that tilts in energy-absorbing hole are corresponding one by one with energy-absorbing groove 5 positions; The crest location that is equivalent to the corresponding energy-absorbing of the crest location hole on the dip plane; The wave trough position in the corresponding energy-absorbing of wave trough position on dip plane hole, less at the width of the energy-absorbing box panel of trough and trough relative position, the crumple that helps the energy-absorbing box is out of shape.The side of two inclined side comprises leading portion face 9, stage casing face 10 and back segment face 11 about the energy-absorbing box body; Energy-absorbing groove 5 is arranged on the stage casing face 10; Leading portion face 9 is the arc of indent, and back segment face 11 is for connecting a side of hoof 4, and back segment face 11 is the arc of evagination; The leading portion face is identical with back segment face length degree, and the length ratio of stage casing face and back segment face is 1.5:1.5 ~ 2:1.The length ratio of present embodiment stage casing face and back segment face is 2:1.At leading portion face, stage casing face and back segment face respectively as a crumple energy-absorbing district; And the energy-absorbing groove is arranged on the face of stage casing as the more energy-absorbing district of energy-absorbing; Therefore the leading portion face is identical with back segment face length degree; The length ratio of stage casing face and back segment face is 2:1, makes the energy-absorbing effect of whole energy-absorbing box reach an optimal state.The preceding connecting portion 3 of energy-absorbing box is through flange 7 welding upper junction plates, and connecting panel passes through bolted connection on the automobile front cross rail.Two flange 7 welding upper junction plates that connect hoof 4 of energy-absorbing box, connecting panel passes through bolted connection on the automobile cabin.When automobile bumped, the energy-absorbing box absorbed energy from the top to bottom crumple distortion, and angle reduction breach 8, energy-absorbing groove 5, energy-absorbing hole 6 have increased the energy-absorbing effect of energy-absorbing box.The energy-absorbing box body is the A font; Left and right sides face tilt, the force direction that receives that the energy-absorbing box is received when clashing into is to begin from the top to disperse to the bottom of energy-absorbing box along two direction of tilt to come, energy disperses when helping colliding; The energy-absorbing effect of energy-absorbing box is good, guarantees occupant's safety.Energy-absorbing crumple when energy-absorbing groove and energy-absorbing hole help the collision of energy-absorbing box increases energy-absorbing effect.Connect groove of formation between the hoof at two, help the crumple of energy-absorbing box.Trapezoidal energy-absorbing hole is than the top of short last base near the energy-absorbing box, and long bottom is near the bottom of energy-absorbing box.Energy-absorbing hole undulate helps the crumple distortion energy-absorbing of energy-absorbing box.The trough of energy-absorbing hole wavy edge is corresponding one by one with energy-absorbing groove position, and trough and energy-absorbing groove all are indents, and is just less at the width of the energy-absorbing box panel of their relative positions, helps the crumple distortion of energy-absorbing box.Box body and lid connection location are the cover stack structure, the parts that the end face at box body and lid edge does not offset with it, and box body and lid to the other side's direction crumple, increase energy-absorbing effect more easily when therefore bumping.
Above-described embodiment is a kind of preferable scheme of the present invention, is not that the present invention is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (9)
1. a vehicle energy absorption box comprises the energy-absorbing box body, it is characterized in that; The energy-absorbing box body is A font structure; The energy-absorbing box body comprises box body (1) and lid (2), box body and the lid formation cavity body structure that links together, and box body and lid connecting bridge are cover stack structure (12); The top of energy-absorbing box body is preceding connecting portion (3); Energy-absorbing box body bottom is two and connects hoof (4) that be respectively equipped with some horizontal energy-absorbing grooves (5) on two bevelled sides about the energy-absorbing box body, there is being the position undulate of energy-absorbing groove in the cross section of two inclined sides; Be respectively equipped with energy-absorbing hole (6) on the plate face of on the plate face of box bottom and lid bottom surface, the edge on each limit, energy-absorbing hole is undulate all.
2. vehicle energy absorption box according to claim 1 is characterized in that, two the indent troughs near the wavy edge of the side that tilts in energy-absorbing hole are corresponding one by one with energy-absorbing groove position.
3. vehicle energy absorption box according to claim 1 is characterized in that, the leaning angle of two inclined sides is 10 ° ~ 30 ° about the energy-absorbing box body.
4. vehicle energy absorption box according to claim 3 is characterized in that, the energy-absorbing groove has four, and the degree of depth of energy-absorbing groove is 1:1 ~ 1:1.5 with the ratio of width.
5. according to claim 1 or 2 or 3 or 4 described vehicle energy absorption boxes, it is characterized in that the degree of depth of lid is identical with the degree of depth of box body, the degree of depth of box body is 2:1 ~ 3:1 with the ratio of the width of cover stack structure.
6. according to claim 1 or 2 or 3 or 4 described vehicle energy absorption boxes, it is characterized in that the end face of preceding connecting portion is a hatch frame, preceding connecting portion end face edge is provided with inside flange (7), and the angle position of preceding connecting portion end face edge is provided with angle reduction breach (8).
7. vehicle energy absorption box according to claim 6 is characterized in that, the end face that connects hoof is a hatch frame, connects the hoof end face edge and is provided with inside flange, and the angle position that connects the hoof end face edge is provided with angle reduction breach.
8. vehicle energy absorption box according to claim 5 is characterized in that, two bevelled construction profile symmetries about the energy-absorbing box body; The bevelled side comprises leading portion face (9), stage casing face (10) and back segment face (11), and the energy-absorbing groove is arranged on the face of stage casing, and the leading portion face is the arc of indent; The back segment face is for connecting a side of hoof; The back segment face is the arc of evagination, and the leading portion face is identical with back segment face length degree, and the length ratio of stage casing face and back segment face is 1.5:1 ~ 2:1.
9. vehicle energy absorption box according to claim 1 is characterized in that, two connection locations that connect hoof and energy-absorbing box body are provided with fillet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029047.1A CN102745158B (en) | 2012-02-10 | 2012-02-10 | Automobile energy-absorbing box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029047.1A CN102745158B (en) | 2012-02-10 | 2012-02-10 | Automobile energy-absorbing box |
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| CN102745158A true CN102745158A (en) | 2012-10-24 |
| CN102745158B CN102745158B (en) | 2014-07-16 |
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| CN201210029047.1A Active CN102745158B (en) | 2012-02-10 | 2012-02-10 | Automobile energy-absorbing box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017034501A1 (en) | 2015-08-21 | 2017-03-02 | Istanbul Teknik Universitesi Rektorlugu | Nested crash box as a passive safety component in vehicles |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19700022A1 (en) * | 1997-01-02 | 1998-07-09 | Wilfried Ball | Bumper assembly for motor vehicles |
| FR2867730A1 (en) * | 2004-03-18 | 2005-09-23 | Benteler Automobiltechnik Gmbh | Bumper system for vehicle e.g. car, has crash boxes fixed to crosspiece at sides of ends closer to lateral walls and equipped with console plate whose shape corresponds to shape of transversal section which is closed by forming narrow base |
| JP2007030778A (en) * | 2005-07-28 | 2007-02-08 | Kanto Auto Works Ltd | Crash box |
| CN101857001A (en) * | 2010-05-28 | 2010-10-13 | 凌云工业股份有限公司 | Small car front bumper with significant energy-absorbing effect |
| CN201633678U (en) * | 2009-09-27 | 2010-11-17 | 浙江吉利汽车研究院有限公司 | Automotive collision energy absorbing device |
| CN201721413U (en) * | 2010-06-02 | 2011-01-26 | 奇瑞汽车股份有限公司 | Anti-impact crossbeam assembly of rear automotive bumper |
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2012
- 2012-02-10 CN CN201210029047.1A patent/CN102745158B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19700022A1 (en) * | 1997-01-02 | 1998-07-09 | Wilfried Ball | Bumper assembly for motor vehicles |
| FR2867730A1 (en) * | 2004-03-18 | 2005-09-23 | Benteler Automobiltechnik Gmbh | Bumper system for vehicle e.g. car, has crash boxes fixed to crosspiece at sides of ends closer to lateral walls and equipped with console plate whose shape corresponds to shape of transversal section which is closed by forming narrow base |
| JP2007030778A (en) * | 2005-07-28 | 2007-02-08 | Kanto Auto Works Ltd | Crash box |
| CN201633678U (en) * | 2009-09-27 | 2010-11-17 | 浙江吉利汽车研究院有限公司 | Automotive collision energy absorbing device |
| CN101857001A (en) * | 2010-05-28 | 2010-10-13 | 凌云工业股份有限公司 | Small car front bumper with significant energy-absorbing effect |
| CN201721413U (en) * | 2010-06-02 | 2011-01-26 | 奇瑞汽车股份有限公司 | Anti-impact crossbeam assembly of rear automotive bumper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017034501A1 (en) | 2015-08-21 | 2017-03-02 | Istanbul Teknik Universitesi Rektorlugu | Nested crash box as a passive safety component in vehicles |
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| CN102745158B (en) | 2014-07-16 |
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