CN104828143B - collision energy-absorbing longitudinal beam and frame - Google Patents
collision energy-absorbing longitudinal beam and frame Download PDFInfo
- Publication number
- CN104828143B CN104828143B CN201410735110.2A CN201410735110A CN104828143B CN 104828143 B CN104828143 B CN 104828143B CN 201410735110 A CN201410735110 A CN 201410735110A CN 104828143 B CN104828143 B CN 104828143B
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- Prior art keywords
- absorbing
- energy
- longeron
- collision
- conquassation
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- 230000002787 reinforcement Effects 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 238000007726 management method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013070 change management Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
- B62D21/155—Sub-frames or underguards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
- B62D21/04—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members single longitudinal type
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a collision energy-absorbing longitudinal beam and a frame. The collision energy-absorbing longitudinal beam comprises a longitudinal beam body (1), and a crushing section (11) is formed on the front section of the longitudinal beam body (1). The collision energy-absorbing longitudinal beam further comprises a hardened energy-absorbing reinforcer (2) which comprises a connecting part (21) and a hardened energy-absorbing part (22) which are formed in a folding mode. The connecting part (21) is connected to the crushing section (11), and the hardened energy-absorbing part (22) extends towards the front end of the longitudinal beam body (1) along the crushing section (11). The frame comprises the longitudinal beam. The hardened energy-absorbing reinforcer (2) is arranged on the longitudinal beam body, so that the hardened energy-absorbing reinforcer (2) is used for absorbing energy, and collision impact is reduced; the hardened energy-absorbing reinforcer (2) can also use the absorbed energy for improving the strength and the rigidity, and therefore the collision energy is effectively utilized.
Description
Technical field
The present invention relates to vehicle collision security fields, in particular it relates to a kind of collision energy-absorbing formula longeron and there is this collision
The vehicle frame of energy-absorption type longeron.
Background technology
In today of auto industry high speed development, the security performance of vehicle has become as the focus of people's growing interest, car
Collision safety performance be vehicle safety performance an importance.How to improve vehicle collision security performance, drop simultaneously
The design of low vehicle and R＆D costs, are the important topics of current collision safety performance exploitation design.
Either monocoque body or separate frame construction, in collision safety accident, front longitudinal is all key energy-absorbing
The design of part, therefore front longitudinal is particularly important, and how using limited material, designs rational structure, can either
Reach buffering energy-absorbing effect in collision, can effectively prevent the immersion amount of crew module, the energy in realizing collision process again
While effectively management, realize modularity and the hardware and software platform of front rail structure, become a crucial technical problem.
On the other hand, modularity, hardware and software platform have become as the main flow consciousness that exploitation designs, and the shared of mould becomes a kind of normal
How state phenomenon, make the collision safety performance needs that the exemplar that same front longitudinal mould produces meets different car loads be also
Technical problem urgently to be resolved hurrily at present.
Content of the invention
It is an object of the invention to provide a kind of collision energy-absorbing formula longeron being capable of effectively utilizes collision energy.
To achieve these goals, the present invention provides a kind of collision energy-absorbing formula longeron, including longeron body, this longeron body
Leading portion be formed as conquassation section, wherein, described collision energy-absorbing formula longeron also include harden energy-absorbing reinforcement, this hardening energy-absorbing strengthen
Part includes the connecting portion being folded to form and hardening energy-absorbing portion, and described connecting portion is connected to described conquassation section, described hardening energy-absorbing portion
Extend along described conquassation section towards the front end of described longeron body.
The present invention also provides a kind of vehicle frame, and this vehicle frame includes collision energy-absorbing formula longeron as above.
By the hardening energy-absorbing reinforcement according to the present invention is arranged on longeron body, this hardening energy-absorbing not only can be utilized
Reinforcement absorbs collision energy, reduces collision impact, and this hardening energy-absorbing reinforcement can also be made using the energy absorbing
The strength and stiffness of itself improve, so that collision energy is utilized effectively.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic partial perspective view of the collision energy-absorbing formula longeron according to one embodiment of the present invention, wherein,
This longeron is not yet by conquassation；
Fig. 2 is the schematic partial perspective view of the collision energy-absorbing formula longeron according to one embodiment of the present invention, wherein,
Conquassation proceeds to one-level conquassation section；
Fig. 3 is the schematic partial perspective view of the collision energy-absorbing formula longeron according to one embodiment of the present invention, wherein,
Conquassation proceeds to the intersection of one-level conquassation section and two grades of conquassation sections；
Fig. 4 is a direction view of Fig. 3, wherein just show hardening energy-absorbing reinforcement and stop part.
Description of reference numerals
1 longeron body, 11 conquassation section 111 one-level conquassation section
112 2 grades of conquassation section 12 non-conquassation section 13 crumple induction holes
2 hardening energy-absorbing reinforcement 21 connecting portion 22 hardening energy-absorbing portions
23 collision prevention girders connecting portion 3 stop part
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
In the present invention, in the case of illustrating on the contrary, the noun of locality such as " forward and backward " of use typically refers in car load
Forward and backward under state, it is front near the side of headstock, after the side of the close tailstock is.
According to an aspect of the present invention, a kind of collision energy-absorbing formula longeron, including longeron body 1, this longeron body 1 are provided
Leading portion be formed as conquassation section 11, wherein, collision energy-absorbing formula longeron also include harden energy-absorbing reinforcement 2, harden energy-absorbing reinforcement 2
Including the connecting portion 21 being folded to form and hardening energy-absorbing portion 22, connecting portion 21 is connected to conquassation section 11, hardening energy-absorbing portion 22 along
Conquassation section 11 extends towards the front end of longeron body 1.
In the hardening energy-absorbing reinforcement 2 of the present invention, connecting portion 21 and hardening energy-absorbing portion 22 pass through to be folded to form, fold position
Become the region of rigidity and intensity minimum on whole hardening energy-absorbing reinforcement 2.In the collision energy-absorbing formula longeron using the present invention
When vehicle collides, conquassation is carried out backward from longeron front end, and conquassation section 11 is gradually by conquassation, and absorbs in Collapse of Concrete
Collision energy；And for hardening energy-absorbing reinforcement 2, because its rigidity in fold position and intensity are minimum, when therefore collision occurs,
Fold position will be deformed first, and hardening energy-absorbing reinforcement 2 presents such mode of texturing, i.e. proceed to connection in conquassation
Before portion 21, connecting portion 21 remains attached to, on longeron body 1, remain stationary as, under the driving of collision energy, energy-absorbing portion of hardening
22 front end rearward movement, fold position gradually elapses backward, and hardening energy-absorbing reinforcement 2 gradually becomes u shape from j shape, when becoming u shape
When, conquassation proceeds to connecting portion 21, and now the two ends of hardening energy-absorbing reinforcement 2 are concordant.In the process, harden energy-absorbing reinforcement
2 absorption collision energies, the part generation plastic deformation between its initial fold position and final fold position, the processed hardening of material,
Strength and stiffness are improved.
Therefore, by arranging the hardening energy-absorbing reinforcement 2 according to the present invention on longeron body 1, not only can utilize should
Hardening energy-absorbing reinforcement 2 absorbs collision energy, reduces collision impact, and this hardening energy-absorbing reinforcement 2 can also be using absorption
To energy so that the strength and stiffness of itself is improved so that collision energy is utilized effectively.
Preferably, collision energy-absorbing formula longeron also includes stop part 3, and this stop part 3 is arranged on longeron body 1, in hardening
In energy-absorbing reinforcement 2 deformation process, for the contact simultaneously backstop hardening further rearward movement of energy-absorbing reinforcement 2.In this situation
Under, when the fold position of the energy-absorbing reinforcement 2 that hardens elapses certain distance backward, fold position is contacted with stop part 3, and stop part 3 hinders
Only fold position elapses (that is, stoping the hardening further rearward movement of energy-absorbing reinforcement) further backward, hardening energy-absorbing reinforcement 2
Processing hardening process terminates, and continues to carry out backward with conquassation, and hardening energy-absorbing reinforcement 2 is with longeron body 11 together by conquassation.
In this stage, due to hardening energy-absorbing reinforcement 2 with longeron body 1 together by conquassation, therefore, compared to previous stage (longeron
Body 1 is by the stage of conquassation, the hardening processed hardening in energy-absorbing portion 22), the collision energy that unit length absorbs is more, thus realizing
The staircase management of energy absorption, reduces the injury to occupant.
As the preferred embodiment of the present invention, stop part 3 be arranged on conquassation section 11 rear end (that is, conquassation section 11 with non-
Conquassation section 12 intersection), and, as shown in figure 4, when the energy-absorbing reinforcement 2 that hardens is deformed into u shape, stop part 3 contacts and backstop
The hardening further rearward movement of energy-absorbing reinforcement 2.
In the case of above-mentioned preferred implementation, longeron can be divided into from front to back three sections: one-level conquassation section
111st, two grades of conquassation sections 112 and non-conquassation section 12, wherein, one-level conquassation section 111 and two grades of conquassation sections 112 are carried out with connecting portion 21
Divide, position forward for one-level conquassation section 111, position rearward for two grades of conquassation sections 112, collectively constitute conquassation section 11.As
Shown in Fig. 2, when conquassation proceeds to one-level conquassation section 111, by conquassation, the energy-absorbing reinforcement 2 that hardens is processed hard for longeron body 1
Change；When conquassation proceeds to two grades of conquassation sections 112, the hardening energy-absorbing reinforcement 2 after processing hardening is pressed together with longeron body 1
Burst, the collision energy of absorption is more more than one-level conquassation section 111；When conquassation proceeds to two grades of conquassation sections 112 and non-conquassation section 12
During intersection, conquassation stops.In this manner it is possible to realize the collision energy ladder of one-level conquassation section 111 and two grades of conquassation sections 112
Change management, the deceleration that reduction occupant is subject to is impacted, and realizes the effective protection to occupant.
On the other hand, in the case of the preferred embodiment of the present invention, only need to be to the material of hardening energy-absorbing reinforcement 2
And/or structure strengthened or weakened, you can significantly improve the collision energy-absorbing characteristic of car load, process is simple, with low cost, need not
Longeron mould is redesigned, saves substantial amounts of die cost.
The hardening energy-absorbing reinforcement 2 of the present invention can have various suitable shapes and structure, for example, can be tabular, circle
Tubulose or the column for having square cross section.The shape of hardening energy-absorbing reinforcement 2 and structure can be according to the rigidity of longeron
Distribution design determines.In the case that hardening energy-absorbing reinforcement 2 is tabular, in order to improve energy-absorbing effect, can be formed on
Reinforcement.
In the hardening energy-absorbing reinforcement 2 of the present invention, the length in hardening energy-absorbing portion 22 can be much larger than the length of connecting portion 21
Degree, in this case, the distance between stop part 3 and connecting portion 21 can be the half of hardening energy-absorbing portion 22 length.
Preferably, the front end of hardening energy-absorbing reinforcement 2 can be flushed with the front end of longeron body 1, thus starting as early as possible to inhale
Receive collision energy.
Preferably, the rigidity of conquassation section 11 is gradually increased from front to back, so that what the longeron of unit length can absorb
Energy is gradually increased from front to back, is more beneficial for the management of collision energy.
As a kind of embodiment, longeron body 1 can be designed as cross-sectional area and be gradually increased from front to back, so that
The rigidity of longeron body 1 is gradually increased from front to back.
As another embodiment, as shown in figure 1, multiple crumple induction holes 13 can be formed with conquassation section 11,
And by crumple induce hole 13 density design be gradually reduced from front to back so that the rigidity of conquassation section 11 from front to back by
Cumulative big.
Preferably, conquassation section 11 is longeron body 1 position corresponding with vehicle fire wall with the intersection of non-conquassation section 12,
Thus controlling car load intrusion volume after an impact it is ensured that occupant's vivosphere of collision rift requires.
According to a further aspect in the invention, provide a kind of vehicle frame, the collision energy-absorbing formula that this vehicle frame is included according to the present invention is indulged
Beam.
Preferably, the front end of hardening energy-absorbing reinforcement 2 can be concordant with the front end of longeron body and be connected to vehicle frame
On front anti-collision beam, thus avoiding making hardening energy-absorbing reinforcement 2 become cantilever beam, enhance structural stability.Connect for convenience,
Collision prevention girders connecting portion 23 can be formed in the front end of hardening energy-absorbing reinforcement 2.It is the situation of tabular in hardening energy-absorbing reinforcement 2
Under, collision prevention girders connecting portion 23 is formed as flange.Here, collision prevention girders connecting portion 23 can be connected by soldering or the like to front anticollision
Liang Shang, and connecting portion 21 can also be connected by soldering or the like on longeron body 1.
Describe the preferred embodiment of the present invention above in association with accompanying drawing in detail, but, the present invention is not limited to above-mentioned reality
Apply the detail in mode, in the range of the technology design of the present invention, multiple letters can be carried out to technical scheme
Monotropic type, these simple variant belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy no longer separately illustrates.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it equally should be considered as content disclosed in this invention.
Claims (9)
1. a kind of collision energy-absorbing formula longeron, including longeron body (1), the leading portion of this longeron body (1) is formed as conquassation section (11),
It is characterized in that, described collision energy-absorbing formula longeron also includes the energy-absorbing reinforcement (2) that hardens, and this hardening energy-absorbing reinforcement (2) includes
The connecting portion (21) being folded to form and hardening energy-absorbing portion (22), described connecting portion (21) is connected to described conquassation section (11), described
Hardening energy-absorbing portion (22) extends along described conquassation section (11) towards the front end of described longeron body (1), described collision energy-absorbing formula
Longeron also includes stop part (3), and this stop part (3) is arranged on described longeron body (1), in described hardening energy-absorbing reinforcement
(2), in deformation process, harden energy-absorbing reinforcement (2) rearward movement further for contact and described in backstop.
2. collision energy-absorbing formula longeron according to claim 1 is it is characterised in that described stop part (3) is arranged on described pressure
The rear end of routed section (11), when described hardening energy-absorbing reinforcement (2) is deformed into u shape, described in described stop part (3) contact backstop
Hardening energy-absorbing reinforcement (2) rearward movement further.
3. collision energy-absorbing formula longeron according to claim 1 is it is characterised in that before described hardening energy-absorbing reinforcement (2)
End is flushed with the front end of described longeron body (1).
4. collision energy-absorbing formula longeron according to claim 1 is it is characterised in that the rigidity of described conquassation section (11) is from forward direction
After be gradually increased.
5. collision energy-absorbing formula longeron according to claim 4 is it is characterised in that the cross-sectional area of described longeron body (1)
It is gradually increased from front to back.
6. collision energy-absorbing formula longeron according to claim 4 is it is characterised in that be formed with multiple in described conquassation section (11)
Crumple induction hole (13), this crumple induces the density in hole (13) to be gradually reduced from front to back.
7. collision energy-absorbing formula longeron according to claim 1 is it is characterised in that described hardening energy-absorbing reinforcement (2) is plate
Shape.
8. a kind of vehicle frame is it is characterised in that described vehicle frame includes the collision energy-absorbing formula according to any one of claim 1-7
Longeron.
9. it is characterised in that described vehicle frame includes front anti-collision beam, described hardening energy-absorbing adds vehicle frame according to claim 8
The strong front end of part (2) and the front end of described longeron body (1) are connected to described front anti-collision beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735110.2A CN104828143B (en) | 2014-12-04 | 2014-12-04 | collision energy-absorbing longitudinal beam and frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735110.2A CN104828143B (en) | 2014-12-04 | 2014-12-04 | collision energy-absorbing longitudinal beam and frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104828143A CN104828143A (en) | 2015-08-12 |
| CN104828143B true CN104828143B (en) | 2017-02-01 |
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ID=53806439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410735110.2A Active CN104828143B (en) | 2014-12-04 | 2014-12-04 | collision energy-absorbing longitudinal beam and frame |
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| Country | Link |
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| CN (1) | CN104828143B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043437B (en) * | 2016-06-28 | 2019-12-27 | 浙江吉利控股集团有限公司 | Collision energy absorption device and automobile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000289646A (en) * | 1999-04-12 | 2000-10-17 | Mitsubishi Motors Corp | Chassis frame structure |
| CN200957836Y (en) * | 2006-10-23 | 2007-10-10 | 重庆长安汽车股份有限公司 | Step-by-step energy-absorbing rear-collision longitudinal beam structure of car |
| CN200964087Y (en) * | 2006-11-07 | 2007-10-24 | 湖南大学 | Cascade energy absorber for vehicle collision |
| CN101279613A (en) * | 2008-04-25 | 2008-10-08 | 奇瑞汽车股份有限公司 | Front energy-absorbing structure for vehicle frame |
| CN103407494A (en) * | 2013-08-27 | 2013-11-27 | 长城汽车股份有限公司 | Longitudinal beam for frame |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3852445B2 (en) * | 2004-01-13 | 2006-11-29 | 日産自動車株式会社 | Impact energy absorption structure of member members |
-
2014
- 2014-12-04 CN CN201410735110.2A patent/CN104828143B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000289646A (en) * | 1999-04-12 | 2000-10-17 | Mitsubishi Motors Corp | Chassis frame structure |
| CN200957836Y (en) * | 2006-10-23 | 2007-10-10 | 重庆长安汽车股份有限公司 | Step-by-step energy-absorbing rear-collision longitudinal beam structure of car |
| CN200964087Y (en) * | 2006-11-07 | 2007-10-24 | 湖南大学 | Cascade energy absorber for vehicle collision |
| CN101279613A (en) * | 2008-04-25 | 2008-10-08 | 奇瑞汽车股份有限公司 | Front energy-absorbing structure for vehicle frame |
| CN103407494A (en) * | 2013-08-27 | 2013-11-27 | 长城汽车股份有限公司 | Longitudinal beam for frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104828143A (en) | 2015-08-12 |
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Address after: 102206, Beijing, Shahe, Changping District Town, Sha Yang Road, Lao Wan Village North Patentee after: Beiqi Futian Automobile Co., Ltd. Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: Beiqi Futian Automobile Co., Ltd. |
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