CN102745158B - Automobile energy-absorbing box - Google Patents
Automobile energy-absorbing box Download PDFInfo
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- CN102745158B CN102745158B CN201210029047.1A CN201210029047A CN102745158B CN 102745158 B CN102745158 B CN 102745158B CN 201210029047 A CN201210029047 A CN 201210029047A CN 102745158 B CN102745158 B CN 102745158B
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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 obvious vehicle energy absorption box of energy-absorbing effect on automobile that is arranged on.
Background technology
Automobile has become the walking-replacing tool of mankind's trip, has greatly improved the mankind's work and life efficiency, 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 inside the vehicle's protective effect.The collision performance of automobile is an aspect very important in Integral automobile safety Design.In current automobile design, normally adopt the bumper assembly that is arranged on automotive front and afterbody to guarantee that carriage body construction framework is not subject to havoc under low speed collision, thereby guarantee the safety of the interior member of car and car body structure itself.In order to absorb as much as possible the kinetic energy clashing into, in present bumper assembly design, tend to add a deformation element, i.e. so-called collision energy absorbing box.But the energy-absorption box using 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, the energy-absorption box body with both ends open, energy-absorption box body is longitudinally stepped along vehicle body, energy-absorption box body is connected to front connecting panel for being connected with automobile front beam and rear connecting panel for being connected with automobile front longitudinal beam, when automobile peace bumps, the energy-absorption box conquassation distortion of step structure absorbs energy, avoid the injury to occupant, the energy-absorption box of this structure is in buffering energy-absorbing, be subject to force direction along vehicle body longitudinally, the stressed strong point only has the Liang Ge position, front-end and back-end of energy-absorption box, the collapse energy-absorption DeGrain of energy-absorption 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 when automobile bumps, energy-absorbing effect is good, guarantees occupant's safety.
In order to solve the problems of the technologies described above, the present invention is by the following technical solutions: a kind of vehicle energy absorption box, comprise energy-absorption box body, energy-absorption box body is A character form structure, energy-absorption 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 cover stack structure, the top of energy-absorption box body is front connecting portion, energy-absorption box body bottom is two and connects hoof, on the side of two inclinations in left and right of energy-absorption box body, be respectively equipped with some horizontal energy-absorbing grooves, there is being the position undulate of energy-absorbing groove in the cross section of two inclined sides, on the plate face of on the plate face of box bottom and lid bottom surface, be respectively equipped with energy-absorbing hole, the edge undulate on each limit, energy-absorbing hole, the indent trough of the wavy edge of two close sides that tilt, energy-absorbing hole is corresponding one by one with energy-absorbing groove position.The front connecting portion on energy-absorption box body top is fixedly connected on automotive front crossbeam, and two connection hoof of energy-absorption box body bottom are fixedly connected on car engine room, and when automobile bumps, energy-absorption box bulk absorption energy, reduces the injury to occupant.Energy-absorption box body is A font, left and right sides face tilt, the force direction that is subject to while making energy-absorption box be subject to clashing into is from top, to start to disperse and come to the bottom of energy-absorption box along two direction of tilt, while being conducive to collide, energy disperses, the energy-absorbing effect of energy-absorption box is good, guarantees occupant's safety.Energy-absorbing crumple when energy-absorbing groove and energy-absorbing hole are conducive to energy-absorption box collision, increases energy-absorbing effect.At two, connect between hoof and form a groove, be conducive to the crumple of energy-absorption box.Shorter upper base, trapezoidal energy-absorbing hole is near the top of energy-absorption box, and longer bottom is near the bottom of energy-absorption box.Energy-absorbing hole undulate is conducive to the crumple distortion energy-absorbing of energy-absorption box.Box body and lid connecting bridge are cover stack structure, the parts that the end face at box body and lid edge does not offset with it, and while therefore bumping, box body and lid, more easily to the other side's direction crumple, increase energy-absorbing effect.
As preferably, two, the energy-absorbing hole indent trough near the wavy edge of the sides that tilt is 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 are all indents, just less at the width of the energy-absorption box panel of their relative positions, is conducive to the crumple distortion of energy-absorption box.
As preferably, the leaning angle of two inclined sides in energy-absorption box body left and right is 10 ° ~ 30 °.Less to energy dispersion when the too little energy-absorption box in inclination angle collides, the too large energy-absorption box intensity in inclination angle reduces, very easily distortion, and the reliability that energy-absorption box connects is low.
As preferably, 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, energy-absorbing groove is set in qually spaced on the side of energy-absorption box body inclination, is conducive to crumple energy-absorbing.The degree of depth of energy-absorbing groove will reduce the intensity of whole energy-absorption box too greatly with the ratio of width, and the degree of depth of energy-absorbing groove is not good with the too little energy-absorbing effect of energy-absorption box that will make of ratio of width.The degree of depth of energy-absorbing groove had both been conducive to guarantee the intensity of energy-absorption box with the ratio of width within the scope of 1:1 ~ 1:1.5, was conducive to guarantee the energy-absorbing effect of energy-absorption 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 met the energy-absorbing effect that energy-absorption box requires, and had met again the requirement of strength of energy-absorption box.The width of cover stack structure had suitably both met the Joint strenght of box body and lid, and while being conducive to collide again, box body and lid are to the other side's direction crumple.
As preferably, the end face of front connecting portion is hatch frame, and front connecting portion end face edge is provided with inside flange, and the angle position of front connecting portion end face edge is provided with angle and weakens breach.Front connecting portion first welds upper junction plate, then by connecting panel, is detachably connected on front cross rail, and flange has facilitated the welding of front connecting portion and connecting panel.The intensity that breach has reduced front connecting portion angle position is weakened at angle, is conducive to the crumple energy-absorbing of energy-absorption box.
As preferably, the end face that connects hoof is hatch frame, connects hoof end face edge and is provided with inside flange, and the angle position that connects hoof end face edge is provided with angle and weakens breach.The connection hoof of energy-absorption box first welds upper junction plate, then by connecting panel, is detachably connected on car engine room, and flange has facilitated the welding that connects hoof and connecting panel.The intensity that breach has reduced to connect hoof angle position is weakened at angle, is conducive to the crumple energy-absorbing of energy-absorption box.
As preferably, the construction profile of energy-absorption box body two inclinations in left and right is symmetrical, the side tilting comprises leading portion face, stage casing face and back segment face, energy-absorbing groove is arranged on the face of stage casing, leading portion face is the arc of indent, and back segment face is for connecting a side of hoof, and back segment face is the arc of evagination, 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.The construction profile of two inclinations is symmetrical, collision energy-absorbing box stressed evenly, energy-absorbing effect is good.Collision energy-absorbing box is stressed is that leading portion face is the arc of indent, is conducive to the inside crumple distortion of energy-absorption box from the top of energy-absorption box to bottom, and the arc that back segment face is evagination is conducive to the outside crumple distortion of energy-absorption box.At leading portion face, stage casing face and back segment face respectively as a crumple energy-absorbing district, and energy-absorbing groove is arranged on the face of stage casing as the more energy-absorbing district of energy-absorbing, therefore 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-absorption box reach a best state.
As preferably, two connection locations that connect hoof and energy-absorption box body are provided with fillet.Connect round-corner transition between hoof and energy-absorption box body, be conducive to the crumple of energy-absorption box.
Compared with prior art, the invention has the beneficial effects as follows: the front connecting portion of (1) energy-absorption box is fixedly connected on automotive front crossbeam, two connection hoof of energy-absorption box are fixedly connected on car engine room, when automobile bumps, energy-absorption box absorbs energy, reduces the injury to occupant; (2) energy-absorption box body is A font, left and right sides face tilt, the force direction that is subject to while making energy-absorption box be subject to clashing into is from top, to start to disperse and come to the bottom of energy-absorption box along two direction of tilt, while being conducive to collide, energy disperses, the energy-absorbing effect of energy-absorption 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 are all indents, just less at the width of the energy-absorption box panel of their relative positions, is conducive to the crumple distortion of energy-absorption box.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is front elevation of the present invention;
In figure: 1, box body, 2, lid, 3, front connecting portion, 4, connect hoof, 5, energy-absorbing groove, 6, energy-absorbing hole, 7, flange, 8, angle weakens breach, 9, leading portion face, 10, stage casing face, 11, back segment face, 12, cover stack structure.
The specific embodiment
Below by specific embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is further described specifically:
Embodiment: a kind of vehicle energy absorption box (referring to accompanying drawing 1, accompanying drawing 2), comprise energy-absorption box body, energy-absorption box body is A character form structure, and energy-absorption box body comprises box body 1 and lid 2, and box body 1 and lid 2 are the blanked part of sheet uniform thickness.Box body 1 and lid 2 weld togethers form cavity body structure, box body 1 and lid 2 connecting bridges are cover stack structure 12, 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 the present embodiment box body 1 is 2:1 with the ratio of the width of cover stack structure 12.Then welding together with the cover box body 1 of stack structure 12 and the overlapping edges of lid 2.Because connection location is cover stack structure 12, the parts that the end face at box body 1 and lid 2 edges does not offset with it, while therefore bumping, box body 1 and lid 2, more easily to the other side's direction crumple, increase energy-absorbing effect.The top of energy-absorption box body is front connecting portion 3, and the end face of front connecting portion 3 is hatch frame, and front connecting portion 3 end face edge are provided with inside flange 7, and the angle position of front connecting portion 3 end face edge is provided with angle and weakens breach 8.The flange 7 of front connecting portion 3 and the connection location round-corner transition of energy-absorption box body, breach 8 is weakened at angle is separated from each other each flange 7 of front connecting portion 3, is conducive to energy-absorption box at the crumple energy-absorbing of this position.Energy-absorption box body bottom is that two connection locations that connect 4, two connection hoof 4 of hoof and energy-absorption box body are provided with fillet, and fillet is located in two grooves that connect between hoof 4.The end face that connects hoof 4 is 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 and weakens breach 8.The construction profile of energy-absorption box body two inclinations in left and right is symmetrical.The leaning angle of two inclined sides in left and right is 10 ° ~ 30 °, and the leaning angle of two inclined sides in left and right of the present embodiment energy-absorption box body is 15 °.On the side of two inclinations in left and right of energy-absorption box body, be respectively equipped with four horizontal energy-absorbing grooves 5, 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 the present embodiment energy-absorbing groove 5 is 1:1 with the ratio of width.The position of the side tilting 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, on the plate face of on the plate face of box body 1 bottom surface and lid 2 bottom surfaces, be respectively equipped with energy-absorbing hole 6,6 cross sections, energy-absorbing hole are isosceles trapezoid, shorter upper base, trapezoidal energy-absorbing hole 6 is near the top of energy-absorption box, longer bottom is near the bottom of energy-absorption box, two waists in trapezoidal energy-absorbing hole 6 respectively with the parallel sided of two inclinations in left and right.The edge undulate on 6 each limit, trapezoidal energy-absorbing hole, the indent trough of the wavy edge of 6 two close sides that tilt, energy-absorbing hole is 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 dip plane, the wave trough position in the corresponding energy-absorbing of the wave trough position hole on dip plane, width at the energy-absorption box panel of trough and trough relative position is less, is conducive to the crumple distortion of energy-absorption box.The side of two inclined side in energy-absorption box body left and right comprises leading portion face 9, stage casing face 10 and back segment face 11, energy-absorbing groove 5 is arranged on stage casing face 10, leading portion face 9 is the arc of indent, back segment face 11 is for connecting a side of hoof 4, back segment face 11 is the arc of evagination, 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 the 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 energy-absorbing groove is arranged on the face of stage casing as the more energy-absorbing district of energy-absorbing, therefore 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-absorption box reach a best state.The front connecting portion 3 of energy-absorption box is by flange 7 welding upper junction plates, and connecting panel is bolted on automotive front crossbeam.Two flange 7 welding upper junction plates that connect hoof 4 of energy-absorption box, connecting panel is bolted on car engine room.When automobile bumps, energy-absorption box absorbs energy from 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-absorption box.Energy-absorption box body is A font, left and right sides face tilt, the force direction that is subject to while making energy-absorption box be subject to clashing into is from top, to start to disperse and come to the bottom of energy-absorption box along two direction of tilt, while being conducive to collide, energy disperses, the energy-absorbing effect of energy-absorption box is good, guarantees occupant's safety.Energy-absorbing crumple when energy-absorbing groove and energy-absorbing hole are conducive to energy-absorption box collision, increases energy-absorbing effect.At two, connect between hoof and form a groove, be conducive to the crumple of energy-absorption box.Shorter upper base, trapezoidal energy-absorbing hole is near the top of energy-absorption box, and longer bottom is near the bottom of energy-absorption box.Energy-absorbing hole undulate is conducive to the crumple distortion energy-absorbing of energy-absorption 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 are all indents, just less at the width of the energy-absorption box panel of their relative positions, is conducive to the crumple distortion of energy-absorption box.Box body and lid connection location are cover stack structure, the parts that the end face at box body and lid edge does not offset with it, and while therefore bumping, box body and lid, more easily to the other side's direction crumple, increase energy-absorbing effect.
Above-described embodiment is a kind of preferably scheme of the present invention, not the present invention is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.
Claims (9)
1. a vehicle energy absorption box, comprise energy-absorption box body, it is characterized in that, energy-absorption box body is A character form structure, energy-absorption box body comprises box body (1) and lid (2), box body and the lid formation cavity body structure that links together, box body and lid connecting bridge are cover stack structure (12), the top of energy-absorption box body is front connecting portion (3), energy-absorption box body bottom is two and connects hoof (4), on the side of two inclinations in left and right of energy-absorption box body, be respectively equipped with some horizontal energy-absorbing grooves (5), there is being the position undulate of energy-absorbing groove in the cross section of two inclined sides, on the plate face of on the plate face of box bottom and lid bottom surface, be respectively equipped with energy-absorbing hole (6), the edge undulate on each limit, energy-absorbing hole.
2. vehicle energy absorption box according to claim 1, is characterized in that, the indent trough of the wavy edge of two close sides that tilt, energy-absorbing hole is 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 in energy-absorption box body left and right is 10 ° ~ 30 °.
4. vehicle energy absorption box according to claim 3, is characterized in that, 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 the vehicle energy absorption box described in claim 1 or 2 or 3 or 4, it is characterized in that, 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.
6. according to the vehicle energy absorption box described in claim 1 or 2 or 3 or 4, it is characterized in that, the end face of front connecting portion is hatch frame, and front connecting portion end face edge is provided with inside flange (7), and the angle position of front connecting portion end face edge is provided with angle and weakens breach (8).
7. vehicle energy absorption box according to claim 6, is characterized in that, the end face that connects hoof is hatch frame, connects hoof end face edge and is provided with inside flange, and the angle position that connects hoof end face edge is provided with angle and weakens breach.
8. vehicle energy absorption box according to claim 5, it is characterized in that, the construction profile of energy-absorption box body two inclinations in left and right is symmetrical, the side tilting comprises leading portion face (9), stage casing face (10) and back segment face (11), and energy-absorbing groove is arranged on the face of stage casing, and leading portion face is the arc of indent, back segment face is for connecting a side of hoof, back segment face is the arc of evagination, and 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-absorption box body are provided with fillet.
Priority Applications (1)
| 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 CN102745158A (en) | 2012-10-24 |
| CN102745158B true 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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Families Citing this family (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 |
-
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 |
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| CN102745158A (en) | 2012-10-24 |
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