CN206555339U - A kind of embedded energy absorption device - Google Patents
A kind of embedded energy absorption device Download PDFInfo
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- CN206555339U CN206555339U CN201720196779.8U CN201720196779U CN206555339U CN 206555339 U CN206555339 U CN 206555339U CN 201720196779 U CN201720196779 U CN 201720196779U CN 206555339 U CN206555339 U CN 206555339U
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- thin wall
- sleeve pipe
- wall sleeve
- energy absorption
- absorption device
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Abstract
The utility model discloses a kind of embedded energy absorption device, including piston, upper conical thin wall sleeve pipe, lower conical thin wall sleeve pipe and buffering consumptive material；The upper annular thin wall and the dislocation of lower annular thin wall connect together, and annular thin wall and lower annular thin wall is slidably matched, and form friction energy-dissipating structure；The piston is secured to the upper conical thin wall sleeve pipe by the hollow load pipe of a cylindricality；The upper conical thin wall sleeve pipe uses CFPR materials, and the lower conical thin wall sleeve pipe is aluminium material.The utility model provides a kind of embedded collision energy-absorbing device, simple in construction, using cleverly topology layout, the requirement for meeting that intensity is high, pliability is good, energy absorbing efficiency is high etc. to high-performance energy absorption device.
Description
Technical field
The utility model is related to passive security technical field, more particularly to a kind of embedded collision energy-absorbing device.
Background technology
With developing rapidly for science and technology, pursuit of the people to efficiency is more and more harsher, the F-Zero of the various vehicles
Constantly break a record.Although the speed of continuous improvement brings high efficiency, also become simultaneously one it is very big dangerous
Factor.Traffic in recent years Frequent Accidents, annual therefore dead number significantly rises, therefore, passive security art
Innovation is extremely urgent.And in passive security technology, the energy absorption performance of energy absorption device is a most important ring, good energy absorption device can
Preferably to protect the safety of personnel when crashing.
But, current most of energy absorption devices mainly with energy-absorbing mode be more single traditional thin-wall pipe,
Its compression apparatus with shock absorbing is leaned on during collision.This energy absorption device integral energy-absorbing amount is small, inefficiency, in crash compresses mistake
Deformed in journey it is unstable, so as to produce shock wave, it is impossible to effectively protect personnel safety.In addition, can only be in certain speed
Collision competence exertion its efficiency in condition range, operation strategies are narrow.Therefore, traditional energy absorption device far can not meet increasingly severe
The requirement at quarter, it is necessary to a kind of new and effective energy absorption device of utility model, to improve current passive security field energy absorption device
It is not enough.
Utility model content
The purpose of this utility model is the deficiency for overcoming prior art there is provided a kind of embedded collision energy-absorbing device,
Simple in construction, using cleverly topology layout, meet that intensity is high, pliability is good, energy absorbing efficiency is high etc. fills to high-performance energy-absorbing
The requirement put.
The utility model solves the technical scheme that its technical problem used：A kind of embedded energy absorption device, including work
Plug, upper conical thin wall sleeve pipe, lower conical thin wall sleeve pipe and buffering consumptive material；
Conical thin wall sleeve pipe ecto-entad is provided with a plurality of upper annular thin walls parallel to each other on this, and the upper circular cone is thin
The center of wall sleeve pipe is provided with upper guiding slot to make way；The lower conical thin wall sleeve pipe ecto-entad is provided with a plurality of lower rings parallel to each other
Shape thin-walled, and the center of the lower conical thin wall sleeve pipe is provided with lower guiding slot to make way；It is described buffering consumptive material be filled in it is described under lead
To slot to make way, and it is matched with the upper guiding slot to make way；
The upper annular thin wall and the dislocation of lower annular thin wall connect together, and slide annular thin wall and lower annular thin wall
It is dynamic to coordinate, form friction energy-dissipating structure；The piston is secured to the upper conical thin wall sleeve pipe by the hollow load pipe of a cylindricality；
The upper conical thin wall sleeve pipe uses CFPR materials, and the lower conical thin wall sleeve pipe is aluminium material.
CFPR materials are the abbreviation of carbon fibre reinforced composite.
As a preferred embodiment, the side wall of the hollow load pipe of cylindricality has multilayer load-carrying construction, the side wall is from the outside to the core
It is followed successively by layer of aluminum, CFPR material layers and layer of aluminum.
As a preferred embodiment, the annular thin wall surface of the lower conical thin wall sleeve pipe, which is sticked, rubber power consumption layer.
As a preferred embodiment, the rubber power consumption layer is butadiene-styrene rubber.
As a preferred embodiment, the annular thin wall surface of the upper conical thin wall sleeve pipe is zigzag structure.
As a preferred embodiment, the buffering consumptive material is polyurethane foam.
As a preferred embodiment, the bottom surface of the piston is provided with positioning table；The positioning edge of table is provided with the first guide angle, phase
Answer, the lower guiding slot to make way of the lower conical thin wall sleeve pipe is provided with the second guide angle；First guide angle and the second guide angle
Angle of inclination it is identical.
The beneficial effects of the utility model are：
1st, this energy absorption device, which is employed, has used new material CFRP, efficiently utilizes its high intensity, high energy absorption capacity and matter
The advantages of measuring light, while device intensity and energy absorption performance is increased, meets the requirement of light-weight design.And stock utilization
Height, each structure can absorb corresponding energy in an impact by deforming or tearing.
2nd, this energy absorption device uses multistage gradient form, is incremented by step by step from energy-absorbing initial point to the energy absorption of energy-absorbing terminal, full
The requirement of the different impact operating modes of foot.Such as when impact velocity is smaller, it is only necessary to which the less SBR5 of energy-absorbing participates in energy-absorbing, with
The increasing of impact velocity, the more part of energy-absorbing gradually participates in carrying out energy-absorbing.When by less impact, part is being changed
During, it is only necessary to corresponding accessory is changed, the part for having neither part nor lot in energy-absorbing can also continue to use.
3rd, rubber power consumption layer carries out friction energy-absorbing using the butadiene-styrene rubber (SBR) for possessing great friction coefficient, and energy-absorbing effect is good,
And be easily changed.
4th, this energy absorption device combines the good aluminium of plasticity and the larger CFRP of fragility, both make use of aluminium pliability good
Advantage make use of CFRP to tear again energy-absorbing is more and the big advantage of intensity.The reciprocation of CFRP materials and aluminum, makes its comprehensive
Close the energy absorption sum that energy absorption is far longer than independent CFRP and aluminium.In the present apparatus, upper conical thin wall sleeve pipe (CFRP) is embedded in down
In circular cone sleeve pipe (AL), because of the constraint of external aluminium, the chip that CFRP tears produce " wedge shape " further promotes CFRP to produce tear
Energy-absorbing；And the CFRP of internal lacerations objectively forms the filler of external aluminium, add it and deform energy absorbing efficiency.General CFRP materials
Material be pressurized when can tear, but by suitably inducing after, can make thin-walled CFRP materials produce folded deformation, than tear absorb
More energy.The hollow load tubular construction of cylindricality in such as device, by the folded deformation of both sides interlayer aluminium, induces core
Thin-walled CFRP folded deformation, greatly promotes energy-absorbing efficiency.
The utility model is described in further detail below in conjunction with drawings and Examples；But one kind of the present utility model is embedding
Enter formula energy absorption device and be not limited to embodiment.
Brief description of the drawings
Fig. 1 is overall structure diagram one (sectional view) of the present utility model；
Fig. 2 is overall structure diagram two (stereogram) of the present utility model；
Fig. 3 is the sectional view of the hollow load pipe of cylindricality of the present utility model；
Fig. 4 is the spacing tear schematic diagram of " wedge shape " chip fixture of the present utility model.
Embodiment
Embodiment：
The utility model is elaborated below in conjunction with accompanying drawing 1 to accompanying drawing 4.
A kind of embedded energy absorption device of the present utility model, including piston 1, upper conical thin wall sleeve pipe 3, lower conical thin wall set
Pipe 4 and buffering consumptive material 6；Ecto-entad of conical thin wall sleeve pipe 3 is provided with a plurality of upper annular thin walls parallel to each other on this, and described
The center of upper conical thin wall sleeve pipe 3 is provided with upper guiding slot to make way；The lower ecto-entad of conical thin wall sleeve pipe 4 is provided with a plurality of mutual
Parallel lower annular thin wall, and the center of the lower conical thin wall sleeve pipe 4 is provided with lower guiding slot to make way；The buffering consumptive material 6 is filled out
Fill in the lower guiding slot to make way, and be matched with the upper guiding slot to make way；The upper annular thin wall and the dislocation of lower annular thin wall
Connect together, and annular thin wall and lower annular thin wall is slidably matched, form friction energy-dissipating structure；The piston 1 passes through
The hollow load pipe 2 of one cylindricality is secured to the upper conical thin wall sleeve pipe 3；The upper conical thin wall sleeve pipe 3 uses CFPR materials, institute
Lower conical thin wall sleeve pipe 4 is stated for aluminium material.
The side wall of the hollow load pipe 2 of cylindricality has multilayer load-carrying construction, and the side wall is followed successively by aluminum from the outside to the core
Layer 21, CFPR material layers 22 and layer of aluminum 23.
The annular thin wall surface of the lower conical thin wall sleeve pipe 4, which is sticked, rubber power consumption layer 5.Rubber power consumption layer 5 is
Butadiene-styrene rubber.
The annular thin wall surface of the upper conical thin wall sleeve pipe 3 is zigzag structure 31.
The buffering consumptive material 6 is polyurethane foam.
The bottom surface of the piston 1 is provided with positioning table；The positioning edge of table is provided with the first guide angle 11, accordingly, described
The lower guiding slot to make way of lower conical thin wall sleeve pipe 4 is provided with the second guide angle 41；The inclination of first guide angle and the second guide angle
Angle is identical.
The utility model device is by piston 1, the hollow load pipe 2 of cylindricality, upper conical thin wall sleeve pipe 3, lower conical thin wall sleeve pipe
4th, rubber power consumption layer 5 and buffering consumptive material (polyurethane foam) 6 grade three part composition.(sectional view of whole energy absorption device see Fig. 1,
Tomograph is shown in Fig. 3)
The Part I of described device is piston 1, when it is by impact, can successively to the hollow load pipe 2 of cylindricality,
Upper conical thin wall sleeve pipe 3, buffering consumptive material (polyurethane foam) 6, lower conical thin wall sleeve pipe 4 and rubber power consumption layer 5 press, and make these
Energy absorbing component fails in succession, reaches the purpose of apparatus with shock absorbing.The lower convexity tilt angles of piston 1 and lower conical thin wall sleeve pipe 4
Inner side chamfering angle is identical (see Fig. 1), in order to which the lower convexity of piston 1 can smoothly compress the buffering consumptive material (polyurethane of filling
Foam) 6, so that 4 thin-walled can be smoothly to external expansion.
The Part II of described device is that the carbon fibre reinforced composite (CFRP) that wing flapping is 0 ° is pressed from both sides with aluminium (AL)
Core pipe 2.Using this sandwich structure, sandwich CFRP thin-walleds can be induced by the plasticity folded deformation of interlayer aluminium when being pressurized
Material produces same folded deformation, can so greatly improve CFRP energy absorption performance；In addition when CFRP wing flapping is 0 °,
Machine direction is vertical with the folding direction of 2 tube walls, and so hollow load pipe 2 of cylindricality will necessarily promote fiber in folded deformation
Silk produces the folding of maximum angle (90 °), and filametntary folded deformation can consume substantial amounts of energy, so 0 ° of wing flapping can be with
The energy absorbing efficiency of sandwich tube 2 is set to reach maximum.In addition in the top piston 1 of sandwich tube 2, it can be made more to be also easy to produce folding and become
Shape, and peak value impact force is substantially reduced, personnel are provided with more preferable protection.
The Part III of described device is by upper and lower conical thin wall sleeve pipe 3,4 and rubber power consumption layer 5 and buffering consumptive material (poly- ammonia
Ester foam) 6 compositions.
Upper conical thin wall sleeve pipe 3 uses the carbon fibre reinforced composite of [0 °/45 °/- 45 °/90 °] n layering types
(CFRP), because the carbon fibre material rigidity of mixing layering type is larger, the circle in the case where upper conical thin wall sleeve pipe 3 is pressurized downward insertion
When boring in thin wall casing 4, it will not deform upon；In addition, because being extruded by 4 lateral magnifications, 3 diameter gradually expands, carbon fiber
What material was produced is tear failure mode, while can further be torn in the pressure by piston 1, is come relative to traditional aluminium
Say, the CFRP tear energy absorbing efficiencies of new material are also very high, can absorb substantial amounts of energy；It is important that in addition, it is exactly it
Light weight, while meeting now to lightweight requirements, it is also possible to proof strength and energy-absorbing efficiency.In addition, to make in primary
There is more effective energy-absorbing in the energy-absorbing stage, and 3 inwall is done toothing (see Fig. 1), so during descending, can greatly increase
With the frictional force of butadiene-styrene rubber 5, so as to absorb more primary, impact energy.
Lower conical thin wall sleeve pipe 4 is made using aluminium, and because energy absorption device needs certain buffer capacity, and aluminium is flexible
Property very well, plastic deformation can be produced during compression, deformation energy-absorbing while can also play a part of buffering.Furthermore, it is possible to will be upper
Conical thin wall sleeve pipe 3 is surrounded, and 3 tear is occurred in 4, on the one hand, 3 tears can produce substantial amounts of " wedge shape " chip,
These " wedge shape " chips can stab the fibrous material not yet torn after the constraint by 4, promote it to produce tear energy-absorbing, this
Sample can greatly improve energy absorbing efficiency (" wedge shape " chip aggravation fiber tearing is shown in Fig. 4).On the other hand, the fibrous material being torn
Also objectively become the packing material of circular cone sleeve pipe 4, can so greatly improve the energy absorption ability of device.
The effect of great friction coefficient rubber power consumption layer 5 is, when the speed of collision is smaller, it is possible to use its great friction coefficient
Property produce friction with descending upper conical thin wall sleeve pipe 3, absorb the energy of primary part, when the speed of collision is smaller,
Primary energy to be absorbed is relatively fewer, it can be made not produce damage to the miscellaneous part of device after energy-absorbing, device is slightly
It can reuse, economize on resources after micro-adjustment, reduce cost；In addition, the elastoplasticity of rubber is good, the work of buffering can also be played
With reduction peak value impact force, the strong safety for protecting personnel.
Buffering consumptive material (polyurethane foam) 6 is filled in 4 cavity and extends to the upper guiding of conical thin wall sleeve pipe 3 and allows
(see Fig. 1) in the groove of position.When upper conical thin wall sleeve pipe 3 the energy of triboabsorption during descending can not meet require when, upper circle
Cone thin wall casing 3 is extruded it after being contacted with buffering consumptive material (polyurethane foam), so as to work to absorb with friction one
More impact energy.Buffer consumptive material (polyurethane foam) material porosity big compared with high and specific surface area, it can absorb each side
To energy, absorb Dynamic characteristic with good, just because of these properties of buffering consumptive material (polyurethane foam), make its
In deformation process, compact model is stable and energy absorbing efficiency is very high.In addition, on the one hand buffering consumptive material (polyurethane foam) has sound absorption
The performance of damping, vibrations and noise when can effectively relax impact, weaken vibration, reduction stress amplitude and reduce collision；
On the other hand buffering consumptive material (polyurethane foam) has that proportion is small, price is low and the shaping advantage such as easily, can both reduce cost, again
Meet the requirement of light-weight design.
Specific action process is as follows：
When energy absorption device is by impact, because being that friction connects between upper conical thin wall sleeve pipe 3 and rubber power consumption layer 5
Touch, power is relatively small, therefore 3 in the impulsive force transmitted by piston 1 by CFRP pipes 2, taking the lead in, it is thin to be gradually embedded lower circular cone
In wall sleeve pipe 4, occur friction energy-absorbing with 5 in the process, after 3 contact with buffering consumptive material (polyurethane foam) 6, compressed
6 produce compression energy-absorbings, with friction together with strengthen energy absorption ability.When 3 are completely embedded into 4, CFRP-AL sandwich tubes 2 are in piston
1 surge effect is lower to produce folded deformation, carries out energy-absorbing.After 2 is entirely ineffective, 3 top is in the presence of impulsive force
It is torn and energy-absorbing；Extruded buffering consumptive material (polyurethane foam) 6 is extending transversely simultaneously, and 4 when occurring lateral yielding
Energy-absorbing；3 tear because by transverse shear stress enlarged-diameter；Then, upper and lower conical thin wall sleeve pipe 3,4 is made in the longitudinal direction of piston 1 together
With lower compression, meanwhile, lower circular cone sleeve pipe 3 is further torn.Finally, when being compressed to close to 4 bottom, energy absorption device compacting is inhaled
It can terminate.Now, the intensity of the energy absorption device of compacting is also greatly enhanced, and prevents being advanced further for piston 1, personnel can be carried
For protecting well.
Above-described embodiment is only used for further illustrating a kind of embedded energy absorption device of the present utility model, but the utility model
It is not limited to embodiment, every any simple modification made according to technical spirit of the present utility model to above example,
Equivalent variations and modification, each fall within the protection domain of technical solutions of the utility model.
Claims (7)
1. a kind of embedded energy absorption device, it is characterised in that：Including piston, upper conical thin wall sleeve pipe, lower conical thin wall sleeve pipe and
Buffer consumptive material；
Conical thin wall sleeve pipe ecto-entad is provided with a plurality of upper annular thin walls parallel to each other, and the upper conical thin wall set on this
The center of pipe is provided with upper guiding slot to make way；The lower conical thin wall sleeve pipe ecto-entad is thin provided with a plurality of lower annulars parallel to each other
Wall, and the center of the lower conical thin wall sleeve pipe is provided with lower guiding slot to make way；The buffering consumptive material is filled in the lower guiding and allowed
Position groove, and it is matched with the upper guiding slot to make way；
The upper annular thin wall and the dislocation of lower annular thin wall connect together, and match somebody with somebody annular thin wall and the slip of lower annular thin wall
Close, form friction energy-dissipating structure；The piston is secured to the upper conical thin wall sleeve pipe by the hollow load pipe of a cylindricality；It is described
Upper conical thin wall sleeve pipe uses CFPR materials, and the lower conical thin wall sleeve pipe is aluminium material.
2. a kind of embedded energy absorption device according to claim 1, it is characterised in that：The side of the hollow load pipe of cylindricality
Wall has multilayer load-carrying construction, and the side wall is followed successively by layer of aluminum, CFPR material layers and layer of aluminum from the outside to the core.
3. a kind of embedded energy absorption device according to claim 1, it is characterised in that：The ring of the lower conical thin wall sleeve pipe
Shape thin-walled surface, which is sticked, rubber power consumption layer.
4. a kind of embedded energy absorption device according to claim 3, it is characterised in that：The rubber power consumption layer is butylbenzene rubber
Glue.
5. a kind of embedded energy absorption device according to claim 1, it is characterised in that：The ring of the upper conical thin wall sleeve pipe
Shape thin-walled surface is zigzag structure.
6. a kind of embedded energy absorption device according to claim 1, it is characterised in that：The buffering consumptive material is polyurethane foam
Foam.
7. a kind of embedded energy absorption device according to claim 1, it is characterised in that：The bottom surface of the piston is provided with positioning
Platform；The positioning edge of table is provided with the first guide angle, accordingly, and the lower guiding slot to make way of the lower conical thin wall sleeve pipe is provided with the
Two guide angles；The angle of inclination of first guide angle and the second guide angle is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720196779.8U CN206555339U (en) | 2017-03-02 | 2017-03-02 | A kind of embedded energy absorption device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720196779.8U CN206555339U (en) | 2017-03-02 | 2017-03-02 | A kind of embedded energy absorption device |
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| CN206555339U true CN206555339U (en) | 2017-10-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884919A (en) * | 2017-03-02 | 2017-06-23 | 华侨大学 | A kind of embedded multi-stage, efficient energy absorption device |
| TWI756834B (en) * | 2020-09-18 | 2022-03-01 | 緯穎科技服務股份有限公司 | Cushioning element and electronic device having the same |
| CN114562531A (en) * | 2022-03-04 | 2022-05-31 | 南京理工大学 | One-way damper for preventing explosion at bottom of collapsible vehicle |
-
2017
- 2017-03-02 CN CN201720196779.8U patent/CN206555339U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884919A (en) * | 2017-03-02 | 2017-06-23 | 华侨大学 | A kind of embedded multi-stage, efficient energy absorption device |
| CN106884919B (en) * | 2017-03-02 | 2023-04-07 | 华侨大学 | Embedded multistage high-efficient energy-absorbing device |
| TWI756834B (en) * | 2020-09-18 | 2022-03-01 | 緯穎科技服務股份有限公司 | Cushioning element and electronic device having the same |
| US11470732B2 (en) * | 2020-09-18 | 2022-10-11 | Wiwynn Corporation | Cushioning element and electronic device having the same |
| CN114562531A (en) * | 2022-03-04 | 2022-05-31 | 南京理工大学 | One-way damper for preventing explosion at bottom of collapsible vehicle |
| CN114562531B (en) * | 2022-03-04 | 2023-09-12 | 南京理工大学 | Collapsible type vehicle bottom explosion protection unidirectional damper |
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