CN205836946U - A kind of non-homogeneous filled type endergonic structure of foamed aluminium - Google Patents

A kind of non-homogeneous filled type endergonic structure of foamed aluminium Download PDF

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Publication number
CN205836946U
CN205836946U CN201620631308.0U CN201620631308U CN205836946U CN 205836946 U CN205836946 U CN 205836946U CN 201620631308 U CN201620631308 U CN 201620631308U CN 205836946 U CN205836946 U CN 205836946U
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energy
absorbing
riser
endergonic structure
foamed aluminium
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CN201620631308.0U
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陈吉清
罗丹
兰凤崇
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South China University of Technology SCUT
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South China University of Technology SCUT
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Abstract

The utility model discloses a kind of non-homogeneous filled type endergonic structure of foamed aluminium, including front longitudinal and vehicle frame, arrange endergonic structure between front longitudinal and vehicle frame, endergonic structure is by the bar shaped energy-absorbing bar that the inside promoting plate and fixed plate to be spliced is frame structure.Fixed plate is strip structure, its inward at both ends bends, and forms two symmetrical outer panels, is interval with multiple energy-absorbing riser between two outer panels, energy-absorbing transverse slat, this energy-absorbing riser and energy-absorbing transverse slat are only set between energy-absorbing riser and energy-absorbing riser and constitute energy-absorbing chassis body;Filled and process aluminum in only adjacent at two outer panels space between energy-absorbing riser.This endergonic structure, when electric automobile occurs equal central collision condition, can realize improving car load and the problem of the crashworthiness of set of cells, impact resistance and body lightening simultaneously, and have lifting driving comfort concurrently.

Description

A kind of non-homogeneous filled type endergonic structure of foamed aluminium
Technical field
This utility model relates to the energy absorbing component between the front longitudinal of electric automobile and vehicle frame, particularly relates to a kind of foamed aluminium Non-homogeneous filled type endergonic structure.
Background technology
Day by day serious along with environmental pollution, electric automobile is because zero-emission and the advantage such as pollution-free have obtained pushing away widely Wide and use, and one of become the main flow direction of current new-energy automobile development.Due to electric automobile quantity be gradually increased and The massive losses that vehicle accident is brought, electric automobile collision safety becomes focus of concern.Owing to head-on crash is sent out The probability that raw probability to be occurred far above other forms of collision, and the injury that brings to driver and crew of head-on crash and right The infringement of automobile is all maximum, and the Frontal Crash Safety of HF therefore improving automobile is particularly important.Electric automobile is in energy storage The aspects such as mode, drive form and car load layout and traditional fuel vehicle also exist larger difference, simultaneously because electric automobile Quality compared with big, barycenter is on the low side and battery and the effect of high-tension electricity, so the crashworthiness of electric automobile has particularity.
Improve automobile central collision safety at present and mainly come real by the performance improving energy-absorption box, front longitudinal and bumper Existing, typically realize by the way of optimizing its shape or partial reinforced structure is set therein.Due at phase syn-collision Under the conditions of, the electric automobile of same grade is likely more acutely compared with the collision of conventional fuel oil car, so front end is touched by electric automobile The requirement hitting energy absorption device is the strictest.But the finite energy that current design vehicle frame front end absorbs, part of impact force can pass To rear portion, raw certain shock of battery may being contracted for fixed output quotas.Housing distortion, inside battery pressure it is likely to result in when battery is clashed into Power raise, volume reduce, then explode, or electrolyte may spill from the gap between crack or housing and lid wait endanger Dangerous situation condition, so the design requirement of crashworthiness can not be met.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, it is provided that a kind of simple in construction, suction Can the non-homogeneous filled type endergonic structure of performance foamed aluminium good, lightweight.
This utility model is achieved through the following technical solutions:
A kind of non-homogeneous filled type endergonic structure of foamed aluminium, including front longitudinal 1 and vehicle frame 8, front longitudinal 1 and vehicle frame 8 it Between endergonic structure is set, described endergonic structure by the inside promoting plate 2 and fixed plate 4 to be spliced be frame structure bar shaped inhale Can bar.
The shape of cross section of described promotion plate 2 is U-shape structure groove;Described fixed plate 4 is strip structure, and its inward at both ends is curved Folding, forms two symmetrical outer panels 42, is interval with multiple energy-absorbing riser 41, only erects at energy-absorbing between two outer panels 42 Arranging energy-absorbing transverse slat 5 between plate 41 and energy-absorbing riser 41, this energy-absorbing riser 41 and energy-absorbing transverse slat 5 constitute energy-absorbing chassis body;Only Filled and process aluminum 7 in the space between the energy-absorbing riser 41 that two outer panels 42 are adjacent.
Described energy-absorbing riser 41 and the outer rim of fixed plate 4 medial surface joint angle, be provided with self-fastening button 6;Promoting the upper and lower of plate 2 The inner side of side plate, is respectively equipped with and self-fastening button 6 shape, position corresponding protruding 3;Fasten with energy-absorbing chassis body when promoting plate 2 Time, snapped into one another between self-fastening button 6 and protruding 3 it is entrenched togather, and then promotions plate 2 and fixed plate 4 is fixed and be stitched together, Form bar shaped energy-absorbing bar.
Described front longitudinal 1 is curve shape, and both sides are provided with crumple guiding groove 11.
Multiple suction cushion hole 51 is offered on described energy-absorbing transverse slat 5.
The end of described front longitudinal 1, is connected to the end face outside of two ends of bar shaped energy-absorbing bar;Before vehicle frame 8 End is connected to the inner side end of two ends of bar shaped energy-absorbing bar.
Described fixed plate 4, energy-absorbing riser 41 and energy-absorbing transverse slat 5 are aluminium alloy, and the connection between them is welding.
Described welding uses agitating friction weldering, argon tungsten-arc welding or metal argon arc welding.
Described foamed aluminium 7 is hexahedron structure.
Described front longitudinal 1 and vehicle frame 8 are hollow-core construction, and its material is aluminium alloy.
This utility model, relative to prior art, has such advantages as and effect:
This utility model according to the bang path of power during collision, by by the inside promoting plate and fixed plate to be spliced in The bar shaped energy-absorbing bar of frame structure, it is possible to achieve energy-absorbing is optimal on the direction of transfer of power, is improving the collision peace of electric automobile While full property, also take into full account the light-weighted problem of electric automobile.
This utility model endergonic structure, when the collision of automobile, sufficiently absorbs the energy in collision process by deformation, The maximum impact force that when effectively reducing collision, vehicle is subject to, it is to avoid battery case, by excessive impact, reduces driving people simultaneously The degree that member is hurt.
This utility model promotes the shape of cross section of plate to be U-shape structure groove;Fixed plate is strip structure, and its inward at both ends is curved Folding, forms two symmetrical outer panels, is interval with multiple energy-absorbing riser, only in energy-absorbing riser and suction between two outer panels Can arrange energy-absorbing transverse slat between riser, this energy-absorbing riser and energy-absorbing transverse slat 5 constitute energy-absorbing chassis body.This structure, is occurring Frontal offset impact, when the deformation of collision side is excessive, can be by the stretching energy-absorbing riser of opposite side, energy-absorbing transverse slat and cushion hole Deng deformation, reduce collision side and the deformation size do not collided between side.
The fixed plate of this utility model endergonic structure and promotion plate weld after connecting by self-locking is fixing again, separately make Making and beneficially improve its precision, when solving welding, mobile the caused series of problems of plate, is effectively increased weldering simultaneously Connect quality.
Endergonic structure of the present utility model is by aluminium alloy and foamed aluminium material manufacture, and the density of aluminium alloy only has steel 1/3, specific strength is about 2~3 times of steel, and specific stiffness is 7 times of steel;The density of foamed aluminium is only about the 1/10 of aluminum density, than Rigidity is also apparently higher than steel, and aluminium alloy has good processing characteristics and Production Practice of Casting Technologies, it is possible to realize electric automobile Body frame structure for automotive equal strength, etc. light-weight design under rigidity.
Main connected mode in this utility model is welding, and aluminium alloy panels all uses shaped by fluid pressure mode molding, Compare punch forming and substantially increase surface quality of workpieces and dimensional accuracy, solve structure plate difficult forming, deformation resilience Problem.
Foamed aluminium structure of the present utility model also has good making an uproar property of suction, thermal diffusivity concurrently, and road surface of decaying passes over makes an uproar Sound, absorbs body vibrations, strengthens vehicle body heat-sinking capability, promotes vehicle driving comfort.
This utility model front longitudinal uses the curve shape tallied with the actual situation, and can pass through topology optimization design, obtain Optimized shape so that quality reaches performance requirement in the case of the least.
In this utility model, the crumple guiding groove on front longitudinal is along vehicle body direction, and design can use topological optimization technology, root Design according to its optimized shape and size result of calculation so that it is reach the result of optimal energy-absorbing situation.
Accompanying drawing explanation
Fig. 1 is the overall schematic diagram before this utility model assembling.
Fig. 2 is the overall schematic after this utility model assembling.
Fig. 3 is this utility model front longitudinal 1 and the schematic diagram of crumple guiding groove 11.
Fig. 4 is that this utility model promotes plate 2 and the schematic diagram of fixed plate 4.
Fig. 5 is the schematic diagram of this utility model fixed plate 4 inner side end.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is more specifically described in detail.
Embodiment
If Fig. 1 is to shown in 5.The utility model discloses a kind of non-homogeneous filled type endergonic structure of foamed aluminium, including front vertical Beam 1 and vehicle frame 8, arrange endergonic structure between front longitudinal 1 and vehicle frame 8, and described endergonic structure is spelled by promoting plate 2 and fixed plate 4 The inside connect is the bar shaped energy-absorbing bar of frame structure.
The shape of cross section of described promotion plate 2 is U-shape structure groove;Described fixed plate 4 is strip structure, and its inward at both ends is curved Folding, forms two symmetrical outer panels 42, is interval with multiple energy-absorbing riser 41, only erects at energy-absorbing between two outer panels 42 Arranging energy-absorbing transverse slat 5 between plate 41 and energy-absorbing riser 41, this energy-absorbing riser 41 and energy-absorbing transverse slat 5 constitute energy-absorbing chassis body;Only Filled and process aluminum 7 in the space between the energy-absorbing riser 41 that two outer panels 42 are adjacent.Offer on described energy-absorbing transverse slat 5 Multiple suction cushion holes 51.Using this structure, when automobile generation Frontal offset impact, when the deformation of side is bigger, energy-absorbing is horizontal Plate 5 by the stretching of opposite side energy-absorbing riser 41 and the deformation in intermediate buffering hole 51 reduce collision side and can not collide side Between modified difference away from.
Described energy-absorbing riser 41 and the outer rim of fixed plate 4 medial surface joint angle, be provided with self-fastening button 6;Promoting the upper and lower of plate 2 The inner side of side plate, is respectively equipped with and self-fastening button 6 shape, position corresponding protruding 3;Fasten with energy-absorbing chassis body when promoting plate 2 Time, snapped into one another between self-fastening button 6 and protruding 3 it is entrenched togather, and then promotions plate 2 and fixed plate 4 is fixed and be stitched together, Form the bar shaped energy-absorbing bar of auto-lock function.This auto-lock function, is conducive to promoting the fixing of both plate 2 and fixed plate 4 position, for Its seam is being welded by the bonding strength strengthening both.
Described front longitudinal 1 is curve shape, and both sides are provided with crumple guiding groove 11.Determine optimal by optimizing design Geomery, when colliding, crumple deformation can sufficiently absorb the energy in collision process, vehicle when effectively reducing collision The maximum impact force being subject to, it is to avoid battery case, by excessive impact, reduces the degree that driver and crew are hurt simultaneously.
The end of described front longitudinal 1, is connected to the end face outside of two ends of bar shaped energy-absorbing bar;Before vehicle frame 8 End is connected to the inner side end of two ends of bar shaped energy-absorbing bar.
Described fixed plate 4, energy-absorbing riser 41 and energy-absorbing transverse slat 5 are aluminium alloy, and the connection between them is welding.
Described welding uses agitating friction weldering, argon tungsten-arc welding or metal argon arc welding.
Described foamed aluminium 7 is hexahedron structure.
Described front longitudinal 1 and vehicle frame 8 are hollow-core construction, and its material is aluminium alloy.
As it has been described above, just can preferably realize this utility model.
Embodiment of the present utility model is also not restricted to the described embodiments, and other are any without departing from of the present utility model The change made under spirit and principle, modify, substitute, combine, simplify, all should be the substitute mode of equivalence, be included in Within protection domain of the present utility model.

Claims (10)

1. the non-homogeneous filled type endergonic structure of foamed aluminium, including front longitudinal (1) and vehicle frame (8), at front longitudinal (1) and vehicle frame (8) endergonic structure is set between, it is characterised in that: described endergonic structure is interior by promote plate (2) and fixed plate (4) to be spliced Portion is the bar shaped energy-absorbing bar of frame structure.
The non-homogeneous filled type endergonic structure of foamed aluminium the most according to claim 1, it is characterised in that: described promotion plate (2) Shape of cross section is U-shape structure groove;Described fixed plate (4) is strip structure, and its inward at both ends bends, and is formed outside symmetrical two Side plate (42), is interval with multiple energy-absorbing riser (41), only at energy-absorbing riser (41) and energy-absorbing between two outer panels (42) Arranging energy-absorbing transverse slat (5) between riser (41), this energy-absorbing riser (41) and energy-absorbing transverse slat (5) constitute energy-absorbing chassis body;Only exist Filled and process aluminum (7) in the space between energy-absorbing riser (41) adjacent with two outer panels (42).
The non-homogeneous filled type endergonic structure of foamed aluminium the most according to claim 2, it is characterised in that: described energy-absorbing riser (41) With the outer rim of fixed plate (4) medial surface joint angle, it is provided with self-fastening button (6);In the inner side of the side plate up and down promoting plate (2), respectively It is provided with and self-fastening button (6) shape, position corresponding protruding (3);When promoting plate (2) to fasten with energy-absorbing chassis body, self-fastening button And snapped into one another between protruding (3) be entrenched togather (6), and then plate (2) and fixed plate (4) will be promoted to fix be stitched together, Form bar shaped energy-absorbing bar.
The non-homogeneous filled type endergonic structure of foamed aluminium the most according to claim 3, it is characterised in that: described front longitudinal (1) is Curve shape, both sides are provided with crumple guiding groove (11).
The non-homogeneous filled type endergonic structure of foamed aluminium the most according to claim 2, it is characterised in that: described energy-absorbing transverse slat (5) On offer multiple suction cushion hole (51).
The non-homogeneous filled type endergonic structure of foamed aluminium the most according to claim 1, it is characterised in that: described front longitudinal (1) End, is connected to the end face outside of two ends of bar shaped energy-absorbing bar;The front end of vehicle frame (8) is connected to bar shaped energy-absorbing The inner side end of two ends of bar.
The non-homogeneous filled type endergonic structure of foamed aluminium the most according to claim 2, it is characterised in that: described fixed plate (4), suction Energy riser (41) and energy-absorbing transverse slat (5) are aluminium alloy, and the connection between them is welding.
The non-homogeneous filled type endergonic structure of foamed aluminium the most according to claim 7, it is characterised in that: described welding uses stirring Friction welding (FW), argon tungsten-arc welding or metal argon arc welding.
The non-homogeneous filled type endergonic structure of foamed aluminium the most according to claim 2, it is characterised in that: described foamed aluminium (7) is Hexahedron structure.
10. according to the non-homogeneous filled type endergonic structure of foamed aluminium according to any one of claim 1 to 8, it is characterised in that: described Front longitudinal (1) and vehicle frame (8) are hollow-core construction, and its material is aluminium alloy.
CN201620631308.0U 2016-06-22 2016-06-22 A kind of non-homogeneous filled type endergonic structure of foamed aluminium Active CN205836946U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106005019A (en) * 2016-06-22 2016-10-12 华南理工大学 Non-uniform filling type foamed aluminum energy absorption structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106005019A (en) * 2016-06-22 2016-10-12 华南理工大学 Non-uniform filling type foamed aluminum energy absorption structure

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