CN109229042A - A kind of automobile buffer beam - Google Patents
A kind of automobile buffer beam Download PDFInfo
- Publication number
- CN109229042A CN109229042A CN201810947407.3A CN201810947407A CN109229042A CN 109229042 A CN109229042 A CN 109229042A CN 201810947407 A CN201810947407 A CN 201810947407A CN 109229042 A CN109229042 A CN 109229042A
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- Prior art keywords
- girder
- energy
- curb
- automobile buffer
- collision
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention relates to a kind of automobile buffer beams, including girder, energy-absorption box and flange, girder passes through flange and the front longitudinal beam for being bolted automobile, energy-absorption box is equipped between girder and flange, the left and right both ends of girder are respectively equipped with the curb girder of two mirror symmetries, each side beam structure is hook, and one end of hook connects girder, and the other end is hanging and is directed toward vehicle body shotgun structure.Compared with prior art, the present invention is during automobile small offset collision, vehicle is collided after device shock, due to increasing two curb girders on girder side, increase the length of whole collision prevention girders, and two curb girder material yield strengths are higher than energy-absorption box, so the energy-absorption box of collision side first can occur crumple and absorb energy, then curb girder carries out crumple again and front longitudinal beam is hit in bending.So that vehicle deviates and deviates impinger along the perspective plane of collision course with driver/passenger and protect the safety of passenger to reduce passenger's injury index.
Description
Technical field
The present invention relates to a kind of field of automobile safety, more particularly, to a kind of automobile buffer beam.
Background technique
Raising with the development and people of automotive engineering to awareness of safety requires automotive safety also higher and higher.One
There are two kinds of crashworthiness standards of C-NCAP and E-NCAP since straight, is carried out for carrying out automobile under the speed of 64km/h
The security test of 40% overlapping collision, to ensure and assess the safety of automobile.2017, China Car Engineering Academe with
The China Insurance automotive safety index C-IASI regulation of middle safeguarding the Graduate Record Examination automotive engineering research institute writing, wherein being even more to propose automobile
The security test for needing to carry out to carry out 25% overlapping collision under the speed of 64km/h, proposes new want to the safety of automobile
It asks.In C-NCAP and E-NCAP impact environment, 40% offset collision obstacle is changeability, can absorb 30%~40% and touch
Hit energy.And the small offset collision obstacle of C-IASI is rigid body, and it is non-deformable, the energy in collision process cannot be absorbed.This is right
It is all very harsh vehicle safety technology new demand for domestic vehicle manufacturers.
As shown in Figure 1, according to current collision prevention of vehicle beam 2 carry out CIASI as defined in 25% offset collision, collision prevention girders 2 with touch
It is only 40~105mm that device 1, which is hit, along the lap of collision course, and on the outside of left and right two energy-absorption box, so in collision process, it is whole
A collision prevention girders 2 and energy-absorption box do not have the effect of crumple energy-absorbing, the front longitudinal beam 3 being connect with collision prevention girders 2 also there is no crumple and
The effect of energy is absorbed, so most collision energy all passes through shotgun structure and directly transmits in entire collision process
To vehicle body, to make vehicle body crumple that inner space be caused to reduce and injure driver/passenger.
Existing improved procedure are as follows: by increasing the arrangement space between front bumper and collision prevention girders, increase in this space
Plastics reinforced support or EPP energy-absorbing is added to foam, to absorb the energy of the first stage of vehicle in an impact；Increase collision prevention girders knot
Radical length of impact strength and energy-absorption box of structure size and steel etc., and pass through the crumple of collision prevention girders bending and energy-absorption box
To absorb the energy of the second stage in collision process；Dump energy in collision process is dispersed by front longitudinal beam, thus
Reduce the disability index to member.But these methods need to carry out globality transformation to the front end of entire vehicle, are not suitable for
Existing vehicle, and manufacturing cost is high, structure cooperation and the requirement of precision are high.Meanwhile the method can not also ensure that one is surely full
The new safety standards of foot.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of automobile buffer beams, only
It needs that vehicle can be made to pass through the new safety standard of C-IASI regulation, protect vehicle occupant by the way that existing automobile buffer beam is transformed
The safety of member, reduces the damage of automobile.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of automobile buffer beam, including girder, the left and right ends of girder are equipped with two curb girders of mirror symmetry, each curb girder
Structure be hook, one end of hook connects girder, and the other end is hanging and is directed toward shotgun structure.
Further, the hook of the curb girder is three section of two folding structure, and from the one end connecting with girder, first segment is
The extension of end of main beam, length are 115~135mm, and second segment and lateral direction of car are in 45 degree of angles, and length is 110~135mm,
Third section and lateral direction of car are in 120~125 degree of angles, and one end connects second segment, and the other end is hanging.
Further, the distance of one end hanging on curb girder to shotgun structure is 15~30mm.
Further, the curb girder is three layers of superposition for including side front-axle beam mechanism, reinforcing beam mechanism and side back rest mechanism
Formula structure, wherein the cross sectional shape of side front-axle beam mechanism and side back rest mechanism be "" type, "" type opening it is opposite, and
Imbricate connection, wraps entire reinforcing beam mechanism, and the cross sectional shape of reinforcing beam mechanism is lateral "Ji" type, " several " word
It is directed toward side front-axle beam mechanism in top.
Further, the side front-axle beam mechanism and side back rest mechanism are all made of model 590DP, the conjunction with a thickness of 2mm
Jin Gang.
Further, the reinforcing beam mechanism uses model 780DP, the steel alloy with a thickness of 2.5mm.
Further, in the curb girder, side front-axle beam mechanism, reinforcing beam mechanism and side back rest mechanism are between each other using weldering
The mode of connecing connects.
Further, it is connected between girder and two curb girders using welding manner.
Further, the width and height dimension of the curb girder section and girder section match.
Further, the girder is arc-shaped, and the radius of circular arc is more than or equal to 2.3m.
Compared with prior art, the invention has the following advantages that
1, after using the present invention, during small offset collision, vehicle is collided after device shock automobile, due to girder side
On increase two curb girders, increase the length of whole collision prevention girders, and two curb girder strengths of materials are higher than energy-absorption box, thus collision
Side energy-absorption box first can occur crumple and absorb energy, and then curb girder carries out crumple again and front longitudinal beam is hit in bending, meanwhile, to make
It obtains vehicle to deviate and deviate impinger along the perspective plane of collision course with driver/passenger, to reduce passenger's injury index, protect
Protect the safety of passenger.
2, current vehicle is in carrying out the small offset collision test process of C-IASI, the contact surface length of collision prevention girders and collision object
Only 40mm~105mm, the present invention make the length of contact surface be increased to 150mm~200mm, increase collision by the curb girder of extension
Area, while curb girder be two folding three-stage hook-like configuration, guarantee first to receive impact in maximum magnitude collision prevention girders, receive
While impact, curb girder occur infolding deformation, and third section infolding and contact absorbed by shotgun structure and dispersed to hit
Energy is hit, the safety of vehicle is improved.
3, curb girder of the invention is three layers of superposing type structure, collision prevention girders reinforcing beam before side, between the back buffer beam of side, as
The skeleton of curb girder, plays a supporting role, the cross sectional shape of side front-axle beam mechanism and side back rest mechanism be "" type, centre, which is equipped with, to be reinforced
Beam mechanism, ensure that the rigidity of collision prevention girders, structure it is reliable, not only appearance looks elegant but also good energy-absorbing effect can have been played.
4, using high-intensitive steel alloy, reinforcing beam mechanism is even more to use for side front-axle beam mechanism of the invention and side back rest mechanism
The steel alloy of superhigh intensity, not only can guarantee bending and crumple in collision process and energy-absorbing more energy, but also will not be due to becoming fragile
It is easy to happen fracture.
5, design structure of the present invention is simple, and manufacture and manufacturing procedure are few, in the case where existing Car design structure is constant
Increase side beam structure part to protect member, only make complete vehicle weight increase by 4.2~6.5Kg, material cost increase by 85~
165 yuan, but be reduction of and largely need to be promoted the R & D Cost that safety is spent, overall cost has been saved, economy is increased
Benefit.
Detailed description of the invention
Fig. 1 is the schematic diagram that existing vehicle carries out impact test；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is configuration schematic diagram of the invention；
Fig. 4 is the structural schematic diagram that the present invention is assemblied on vehicle body；
Fig. 5 is the partial enlarged view of Fig. 4；
Fig. 6 is the schematic cross-section of curb girder；
Fig. 7 is the schematic diagram that embodiment one carries out impact test；
Fig. 8 is the schematic diagram of collision energy transmittance process；
Appended drawing reference: 1, impinger, 2, collision prevention girders, 3, front longitudinal beam, 4, shotgun structure, 21, girder, 22, energy-absorption box,
221, on energy-absorption box, 222, under energy-absorption box, 23, curb girder, 231, side front-axle beam mechanism, 232, reinforcing beam mechanism, 233, side back rest machine
Structure, 5, flange, 6, bolt.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment one
As shown in Figures 2 and 3, a kind of automobile buffer beam, including girder 21, energy-absorption box 22 and flange are present embodiments provided
5, girder 21 connects the front longitudinal beam 3 of automobile by flange 5 and bolt 6, and energy-absorption box 22 is equipped between girder 21 and front longitudinal beam 3.Mesh
Preceding automobile main beams are many using material and manufacturing process type, are broadly divided into steel high strength anti-collision beam；Steel superhigh intensity is anti-
Hit beam；Aluminum collision prevention girders etc..Manufacturing process is broadly divided into: rolling process, Sheet Metal Forming Technology；Casting technique；Extrusion process etc..Left/
Right energy-absorption box 22 divides for 222 under on energy-absorption box 221 and energy-absorption box, on energy-absorption box 221 and energy-absorption box under 222 pass through welded connecting.
221 use punching press, bending, punching etc. with 222 manufacturing process under energy-absorption box on energy-absorption box.Then it is welded to connect again with flange 5, method
Orchid 5 uses high strength steel, and manufacture craft is blanking, punching press, punching etc..
The left and right ends of girder 21 are respectively equipped with the curb girder 23 of two mirror symmetries, and each 23 structure of curb girder is hook, hook
One end of type connects girder 21, and the other end is hanging and is directed toward shotgun structure 4.The width in 23 section of curb girder and 21 section of girder
Degree and height dimension match, and are connected between girder 21 and two curb girders 23 using welding manner, all welding processes are in work
It welds and completes above clamps.Girder 21 uses model 590DP, the steel alloy with a thickness of 1.8mm.The width of girder 21 is
35mm is highly 95mm, and moulding process uses rolling technology.Girder 21 is arc-shaped, and the radius of circular arc is more than or equal to 2.3m.
As shown in Figure 4 and Figure 5, the hook of curb girder 23 is three section of two folding structure, from the one end being connect with girder 21, the
One section of L1 is the extension of 21 two sides of girder, and the angle a of length 115mm, second segment L2 and lateral direction of car is 45 degree, and length is
The angle b of 110mm, third section L3 and lateral direction of car is 120 degree, and one end connects second segment L2, and the other end is hanging.Third section L3
The distance of upper hanging one end to shotgun structure 4 is 20mm.The first segment L1 of curb girder 23 is inserted into girder 21, and not with suction
Energy box 22 is interfered, and is not less than 110mm with 21 lap of girder.
As shown in fig. 6, curb girder 23 be include side front-axle beam mechanism 231, reinforcing beam mechanism 232 and side back rest mechanism 233
Three layers are sequentially overlapped formula structure, wherein the cross sectional shape of side front-axle beam mechanism 231 and side back rest mechanism 233 be "" type, "”
The opening of type is opposite, and imbricate connects, and wraps entire reinforcing beam mechanism 232, the section shape of reinforcing beam mechanism 232
Shape is lateral "Ji" type, and side front-axle beam mechanism 231 is directed toward on " several " word top.Side front-axle beam mechanism 231 and side back rest mechanism 233 are equal
Using model 590DP, with a thickness of the steel alloy of 2mm.Reinforcing beam mechanism 232 uses model 780DP, with a thickness of 2.5mm's
Steel alloy.Side front-axle beam mechanism 231, reinforcing beam mechanism 232 and side back rest mechanism 233 are connected using welding manner between each other.
As shown in Figure 7 and Figure 8, the working principle of the present embodiment are as follows:
On the basis of existing Car design: considering protection member security, in original design basis, the girder of collision prevention girders
21 increase curb girder 23 to two sides, increase small biasing overlapping area in CIASI regulation, while optimizing in enging cabin two sides
Reinforcing rib is arranged between shotgun structure 4 and front longitudinal beam 3 in shotgun structure 4, during small offset collision, pass through
23 bending of curb girder and the crumple of energy-absorption box absorb the energy of the first stage in collision process；Pass through the curb girder of bending simultaneously
23 squeeze front longitudinal beam 3, so that vehicle deviates impinger 1 along normal impact direction with passenger, to protect passenger, reduce
To the injured index of member.It is squeezed and is inhaled with the contact of shotgun structure 4 and front tyre by the hook-like configuration of curb girder 23
Receive the collision energy of second stage；Dump energy in collision process is absorbed into energy and shotgun knot by 3 crumple of front longitudinal beam
4 two parts of structure are transmitted to above vehicle body；Upside reaches side wall by A column and is transmitted to the vehicle other side by roof cross beam.Under
Side is transmitted to the vehicle other side using lower beam by enclosing lower plate.It comes to harm in collision process to reduce member.This
Embodiment is to increase curb girder 23 in the case where existing Car design structure is constant in order to protect member, so that complete vehicle weight meeting
Increase, increases weight because vehicle difference is varied, be not more than 10 kilograms.Cost also has increase, but is not more than 200 yuan.But
Which reduce the development cost for largely needing to be promoted safety and being spent, and increase economic benefit on the whole.
Embodiment two
The girder of the present embodiment uses model 980DP, the steel alloy with a thickness of 1.8mm, and the width of girder is 45mm, high
Degree is 110mm.The hook of curb girder is three section of two folding structure, and from the one end connecting with girder, first segment is girder two sides
Extension, length 135mm, second segment and lateral direction of car are in 45 degree of angles, and length 135mm, third section and lateral direction of car are in 125
Angle is spent, one end connects second segment, and the other end is hanging, and the distance of hanging one end to shotgun structure is 30mm on curb girder,
Remaining part point is the same as embodiment one.
Embodiment three
The girder of the present embodiment uses model 1100DP, the steel alloy with a thickness of 1.0mm, and the width of girder is 40mm,
Height is 105mm；The hook of curb girder is three section of two folding structure, and from the one end connecting with girder, first segment is girder two sides
Extension, length 120mm, second segment and lateral direction of car are in 45 degree of angles, length 120mm, and third section is in lateral direction of car
123 degree of angles, one end connect second segment, and the other end is hanging, and the distance of hanging one end to shotgun structure is on curb girder
15mm, rest part is the same as embodiment one.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of automobile buffer beam, including girder (21), which is characterized in that the left and right ends of girder (21) are equipped with mirror symmetry
Two curb girders (23), the structure of each curb girder (23) are hook, and one end of hook connects girder (21), and the other end is hanging and refers to
To shotgun structure (4).
2. automobile buffer beam according to claim 1, which is characterized in that the hook of the curb girder (23) is three section of two folding
Structure, from the one end connecting with girder (21), first segment is the extension of girder (21) end, and length is 115~135mm,
Second segment and lateral direction of car are in 45 degree of angles, and length is 110~135mm, and third section and lateral direction of car are in 120~125 degree of angles, one
End connection second segment, the other end are hanging.
3. automobile buffer beam according to claim 1, which is characterized in that hanging one end is to shotgun structure on curb girder
(4) distance is 15~30mm.
4. automobile buffer beam according to claim 1, which is characterized in that the curb girder (23) be include side front-axle beam mechanism
(231), three layers of superposing type structure of reinforcing beam mechanism (232) and side back rest mechanism (233), wherein side front-axle beam mechanism (231) and
The cross sectional shape of side back rest mechanism (233) isType,The opening of type is opposite, and imbricate connects, package
The cross sectional shape of firmly entire reinforcing beam mechanism (232), reinforcing beam mechanism (232) is lateral "Ji" type, and " several " word top refers to
To side front-axle beam mechanism (231).
5. automobile buffer beam according to claim 4, which is characterized in that the side front-axle beam mechanism (231) and the side back rest
Mechanism (233) is all made of model 590DP, the steel alloy with a thickness of 2mm.
6. automobile buffer beam according to claim 4, which is characterized in that the reinforcing beam mechanism (232) uses model
For 780DP, with a thickness of the steel alloy of 2.5mm.
7. automobile buffer beam according to claim 4, which is characterized in that in the curb girder (23), side front-axle beam mechanism
(231), reinforcing beam mechanism (232) is connected using welding manner between each other with side back rest mechanism (233).
8. side member for vehicle (23) according to claim 1, which is characterized in that adopted between girder (21) and two curb girders (23)
It is connected with welding manner.
9. automobile buffer beam according to claim 1, which is characterized in that curb girder (23) section and girder (21) is cut
The width and height dimension in face match.
10. automobile buffer beam according to claim 1, which is characterized in that the girder (21) is arc-shaped, circular arc
Radius is more than or equal to 2.3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810947407.3A CN109229042B (en) | 2018-08-20 | 2018-08-20 | Anti-collision beam for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810947407.3A CN109229042B (en) | 2018-08-20 | 2018-08-20 | Anti-collision beam for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109229042A true CN109229042A (en) | 2019-01-18 |
| CN109229042B CN109229042B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810947407.3A Active CN109229042B (en) | 2018-08-20 | 2018-08-20 | Anti-collision beam for automobile |
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| Country | Link |
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| CN (1) | CN109229042B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878574A (en) * | 2019-03-15 | 2019-06-14 | 浙江众泰汽车制造有限公司 | It is a kind of for coping with the automotive body structure and its working method of 25% offset collision |
| CN111845942A (en) * | 2020-06-11 | 2020-10-30 | 上海凌云工业科技有限公司凌云汽车技术分公司 | Steel plate tailor-welded automobile crossbeam |
| CN112092757A (en) * | 2020-10-14 | 2020-12-18 | 安徽理工大学 | Novel multistage buffering energy-absorbing anticollision roof beam of collision skew |
| CN112455375A (en) * | 2020-10-28 | 2021-03-09 | 南京航空航天大学 | Automobile anti-collision device combined with radiator |
| CN113060086A (en) * | 2021-02-25 | 2021-07-02 | 浙江合众新能源汽车有限公司 | 25% small offset collision automobile body structure of automobile |
| CN113212344A (en) * | 2021-05-12 | 2021-08-06 | 上汽大众汽车有限公司 | Front end is just bumping structure |
| CN113619514A (en) * | 2021-07-08 | 2021-11-09 | 重庆市科学技术研究院 | Lightweight car anticollision roof beam structure |
| CN114274903A (en) * | 2021-12-29 | 2022-04-05 | 奇瑞汽车股份有限公司 | Exterior structure of automobile and automobile |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878574A (en) * | 2019-03-15 | 2019-06-14 | 浙江众泰汽车制造有限公司 | It is a kind of for coping with the automotive body structure and its working method of 25% offset collision |
| CN111845942A (en) * | 2020-06-11 | 2020-10-30 | 上海凌云工业科技有限公司凌云汽车技术分公司 | Steel plate tailor-welded automobile crossbeam |
| CN112092757A (en) * | 2020-10-14 | 2020-12-18 | 安徽理工大学 | Novel multistage buffering energy-absorbing anticollision roof beam of collision skew |
| CN112092757B (en) * | 2020-10-14 | 2024-05-17 | 安徽理工大学 | Novel multistage buffering energy-absorbing anti-collision beam of collision skew |
| CN112455375A (en) * | 2020-10-28 | 2021-03-09 | 南京航空航天大学 | Automobile anti-collision device combined with radiator |
| CN113060086A (en) * | 2021-02-25 | 2021-07-02 | 浙江合众新能源汽车有限公司 | 25% small offset collision automobile body structure of automobile |
| CN113212344A (en) * | 2021-05-12 | 2021-08-06 | 上汽大众汽车有限公司 | Front end is just bumping structure |
| CN113619514A (en) * | 2021-07-08 | 2021-11-09 | 重庆市科学技术研究院 | Lightweight car anticollision roof beam structure |
| CN114274903A (en) * | 2021-12-29 | 2022-04-05 | 奇瑞汽车股份有限公司 | Exterior structure of automobile and automobile |
| CN114274903B (en) * | 2021-12-29 | 2024-05-10 | 奇瑞汽车股份有限公司 | Automobile outer packaging structure and automobile |
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| Publication number | Publication date |
|---|---|
| CN109229042B (en) | 2023-09-29 |
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