CN207510508U - A kind of electric automobile collision protects effective energy-absorbing island structure - Google Patents

Abstract

The utility model provides a kind of electric automobile collision protection effective energy-absorbing island structure.Scheme can bear to collide the beam body system of huge shock, and combined with energy-absorbing foamed material in headstock part setting, form collision protection effective energy-absorbing island structure.When automobile meets with accident collision; beam body system supports the enormous impact kinetic energy that collision vehicle is accepted on energy-absorbing island; using the foaming structure crumple on energy-absorbing island as cost; greatly absorb consumption opponent vehicle kinetic energy; while passenger safety on protecting vehicle; beam body system can also further dispersion be shared equally on battery case by the energy-absorbing island recoil greatly reduced, battery case stress excessive deformation is avoided to lead to explosion on fire, to the maximum extent neutralizing collision harm.

Description

A kind of electric automobile collision protects effective energy-absorbing island structure

Technical field

The utility model is related to electric automobile collision protection technology fields, and in particular to a kind of electric automobile collision protection is high Imitate energy-absorbing island structure.

Background technology

Pure electric automobile is the principal mode of new-energy automobile, there is following many advantages compared with conventional fuel oil automobile：(1) Low stain：Almost " zero-emission ".(2) low noise：The noise that pure electric automobile generates can be ignored.(3) it is inexpensive： Pure electric automobile manufacture is of low cost, and operating cost is lower.(4) high efficiency：Pure electric automobile does not have waste heat waste.(5) it easily protects It supports：The components such as dynamo battery only need to be inspected periodically, it is easy to maintenance.In addition electric vehicle will become low-carbon, informationization With intelligentized optimal platform.So Development of EV is all being vigorously supported in countries in the world in recent years, ev industry is The blue sea market field most concentrated as current intelligence manufacture and Internet of Things.

It is well known that the power resources of electric vehicle, in power battery, current most common power battery is lithium-ion electric Pond.For lithium ion battery since lithium itself activity is extremely strong, cell safety problem annoyings the development of electric vehicle industry, nothing always By being the problem of LiFePO4 or ternary lithium electricity are all in the prevalence of easy Fire explosion, although passing through modern intelligent control skill Art, battery thermal runaway has obtained effective containment under static environment, but all not solving the problems, such as cell safety fundamentally.In complexity Traffic environment under and dynamic condition under, on electric vehicle behind road, vehicle is impinging one another to be difficult to avoid that, collision increase battery Insecurity.On fire can go out unlike catching fire fuel oil of lithium battery can be rescued, and battery causes internal thermal runaway, Jiu Huilian once colliding Lock reactor, catching fire to spread rapidly, and any fire extinguishing urgent measure does not almost work, and it is inevitable outcome to eventually lead to explosion.Institute The hidden danger for causing battery catches fire explosion with road rear vehicle collision on following a large amount of electric vehicles is very big, if do not taken precautions against in advance, gesture The road blocking tiger that ev industry deeply develops must be become, can not be crossed over.Cell safety has become ev industry development World-class problem.

How traditional automotive safety strengthens the protection to human body when being mainly and resolving collision, and electric vehicle is anti-safely Shield will not only be focused on how strengthening the protection to human body during collision, but also more to strengthen the security protection of battery, not only will be quiet Ensure battery explosion not on fire under state environment, more to ensure under complicated transportation condition and travel in dynamic process, once occur Fortuitous events, the batteries such as collision must obtain most strictly being effectively protected, it is ensured that on fire cannot explode, this is only to human body most Most protection comprehensively greatly.

Fuel-engined vehicle collision protection at present, common people are considered what is played a role by collision prevention girders (bumper), substantially Automobile buffer beam only can play certain protective effect in slight impact, once speed is slightly larger, automobile buffer beam almost body Do not go out protective action now.It attempts to improve collision prevention girders later, bubble is filled with by being installed additional between collision prevention girders and car body girder The energy-absorption box of foam aluminium it is expected to improve the energy-absorbing effect of bumper with this, and as a result effect is unsatisfactory.The reason is that fuel-engined vehicle head Portion space has almost been accounted for by fuel engines, is supplied to collision prevention girders installation space very limited so that can be filled in energy-absorption box Foam aluminum amount is fewer, so the energy-absorbing effect played is very limited, such as《Vehicle energy absorption box》(the patent No. 2012205381608) it is exactly this structure.It may be said that the real sharp impacts protection of fuel-engined vehicle up to now, substantially also It is that the protection to human body is realized by car body crumple energy-absorbing and airbag restraint.

Batteries of electric automobile is generally paved on automobile chassis at present, and in addition to headstock, vehicle body is without any shrinkable Space.Since lithium ion itself activity of battery is extremely strong, battery must obtain stringent protection in vehicle collision, it is impossible to There is any deformation and puncture harm.So conventional fuel oil automobile protects the technique of human-body safety by car body crumple, no longer It is suitble to electric automobile collision protection, it is necessary to change conventional truck collision energy-absorbing scheme, farthest protect on-vehicle battery safety, It is only the protection best to human body.In other words, following electric automobile collision damage can only be confined to vehicle head part, vehicle neck with Afterwards part must strict protection, otherwise once damage certainly will cause Fire explosion to battery, what is brought to Vehicular occupant will ruin The disaster of going out property.

In view of this, we have discovered that electric vehicle has two aspects with fuel-engined vehicle maximum differential：When battery case Housing replaces the stringer designs of orthodox car, and following electric vehicle gradually moves towards no beam integration.Energy-absorption box and car body master in the past The structure design of beam cooperation installation has not adapted to the variation of electric vehicle new construction.Second is that start in headstock without fuel oil Machine has vacateed much room, this is conducive to set more energy-absorbing materials in headstock, enhances headstock collision energy-absorbing function, with this To crack the global problem of electric automobile collision safety.

Utility model content

The purpose of this utility model is that there are the above problems for existing technology, provides a kind of electric automobile collision protection Effective energy-absorbing island structure by the increase beam body system in electric vehicle headstock space, increases the loading of foam energy-absorbing material, Energy-absorbing effect is greatly promoted, realizes that can effectively avoid collision causes to Vehicular occupant and the most stringent of protection of on-vehicle battery On fire, the explosion of battery case, so as to improve electric vehicle safety and reliability.Program design science, it is compact-sized reasonable, It is suitable for popularization and application.

In order to achieve the above object, the utility model is achieved by the following technical programs：

A kind of electric automobile collision protects effective energy-absorbing island structure, including be located in car body neck location beam body system, The shrinkable chassis on energy-absorbing island and headstock bottom in headstock, is equipped with by beam body system, energy-absorbing island and shrinkable chassis Come effective energy-absorbing when realizing to car body collision.

Further, the beam body system includes dissipating power set, bearing beam and bindiny mechanism, the scattered power set, bearing beam and Bindiny mechanism sets gradually from back to front；The not shrinkable chassis of the bearing beam and car body is integrally constituted structure；It is described to dissipate Power covers one end and is fixed on bearing beam, and the other end is set in outside battery case；The bindiny mechanism can shrink along length over ends of body direction, One end of which is fixed on bearing beam, the other end is anchored in energy-absorbing island.

Further, the energy-absorbing island is embedded in headstock, is closely set in before bearing beam, and is steeped by several energy-absorbings Foam block composite reinforcement and become one structure.

Further, the bearing beam is the sandwich sandwich structure that high tensile metal plate is process, and branch is filled in sandwich Foam block is supportted, to improve the ability of anti-deformation of bearing beam, while realizes the lightweight of bearing beam.

Further, the antetheca of the battery case is close to the rear wall of bearing beam, the set of the battery case and the scattered power set Socket part is close to, to improve the globality that battery case is combined with beam body system, to realize dispersion of the bearing beam to battery case recoil It shares equally.

Further, the bindiny mechanism includes crumple cylinder and piston body；The crumple cylinder is folds cylinder, the crumple cylinder It is interior to be equipped with foam pottery ball；Filled with support foam block in the cavity of the piston body.

Further, the outer skirt on the energy-absorbing island uses several outer housing gap settings, in the gap of the outer housing Side also shifts to install supporing shell, to increase forced area when energy-absorbing island is knocked, sharp component is prevented to be pierced into；The shell Body and supporing shell are fixed on connection component on the alien invasion of energy-absorbing island.

Further, the shrinkable chassis is vertical erect to be taken to put fixed Combination and form by several S-shaped steel bands；It is described to burst Contracting chassis upper edge height of the carbody direction sets multigroup reinforcing cord band to fixed energy-absorbing island.

Further, the energy-absorbing foam block and support foam block be metal foaming material or be metal foaming material with it is non- The composite material of metal foaming.

Compared with prior art, the beneficial effects of the utility model are：

The utility model collision protection effect is good：By setting beam body system, Multiple Protective Structure design greatly increases bubble Foam materials'use amount, while energy-absorbing effect is greatly enhanced, realize that rationally dispersion is carried out to impact force shares equally, while strengthen battery and prevent Shield, ensure that passenger safety to greatest extent.This anti-collision system is by Combination Design, and easy to replace, maintain, scenario-frame is simple, Reasonable design is ingenious, compact-sized, has good market prospects.

Description of the drawings

It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it is therefore apparent that the accompanying drawings in the following description is only Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other attached drawings.

Fig. 1 is that the beam body system of the utility model installs side view；

Fig. 2 is the beam body system structure diagram of the utility model；

Fig. 3 is bindiny mechanism's structure diagram of the utility model；

Fig. 4 is the chassis of vehicle body bottom view of the utility model；

Fig. 5 is the beam body system sectional view of the utility model；

Fig. 6 is the A portions enlarged diagram in Fig. 4 of the utility model；

Fig. 7 is the headstock shrinkable chassis schematic diagram of the utility model；

Fig. 8 is the overall structure diagram of the utility model；

Figure label explanation：1st, car body；2nd, battery case；21st, battery pack；3rd, beam body system；31st, power set is dissipated；32nd, load Beam；321st, foam block is supported；33rd, bindiny mechanism；331st, crumple cylinder；332nd, piston body；4th, energy-absorbing island；41st, outer housing；42nd, it props up Support housing；5th, connection component；6th, reinforcing cord band；7th, shrinkable chassis；71st, S shapes rigidity metal tape；8th, not shrinkable chassis；9、 Energy-absorbing foam block；10th, foam pottery ball；11st, headstock；12nd, screw.

Specific embodiment

Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality Type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described implementation Example is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, this field Those of ordinary skill's all other embodiments obtained without creative efforts, belong to the utility model The range of protection.

With reference to attached drawing, the utility model is further described：

With reference to attached drawing 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 8, a kind of electric automobile collision protects effective energy-absorbing island structure, including setting The shrinkable chassis 7 of 11 bottom of energy-absorbing island 4 and headstock in beam body system 3, headstock 11 in 1 neck location of car body, passes through Beam body system 3, energy-absorbing island 4 and shrinkable chassis 7 are equipped with to realize effective energy-absorbing when colliding car body 1.

The not shrinkable chassis 8 of chassis of vehicle body is connected as a single entity with 7 two parts of shrinkable chassis, and the beam body system 3 is held Power beam 32 is located at front part of saloon car not on shrinkable chassis 8, ensures beam body system 3 and the globality structure on not shrinkable chassis 8, together When connection relation with Vehicular body front shrinkable chassis 7 again, while 31 suit of scattered power set that the rear end for passing through bearing beam 32 is set Outside battery case 2, what front end was set can be along the bindiny mechanism 33 that length over ends of body direction is shunk and the energy-absorbing island 4 in the headstock 11 Compound grafting；So as to fulfill the carrying to battery case 2, beam body system 3 that Vehicular body front is set along length over ends of body direction is taken can Collapse type designs and the energy-absorbing island of prestowage, can realize shrinkable energy-absorbing when beam body system 3 is impacted, so as to avoid to rear portion electricity The direct impact of pond case 2.

The structure beam body 3 includes dissipating power set 31, bearing beam 32 and bindiny mechanism 33, the scattered power set 31, bearing beam 32 It is set gradually from back to front with bindiny mechanism 33；The not shrinkable chassis 8 of the bearing beam 32 and car body is integrally constituted structure； The scattered power set 31 is set in one of battery case 2, and the bindiny mechanism 33 sets several, and each 33 one end of bindiny mechanism is consolidated Be scheduled on bearing beam 32, other end grafting is anchored in energy-absorbing island 4, and pass through that the energy-absorbing island 4 is fixed on by reinforcing cord band 6 can On crumple chassis 7；The crusherbull zone spacing of 2 forepart of battery case is increased, while considerably increases foam block on energy-absorbing island 4 Usage amount improves the crash protection effect to battery case 2.

Gapless setting is carried out between 32 rear wall of antetheca and bearing beam of the battery case 2；The lateral wall of the battery case 2 It is close to the socket part of the scattered power set 31, to improve the globality that battery case is combined with beam body system, to realize bearing beam 32 The dispersion of battery case recoil is shared equally；The socket part of the battery case 2 and scattered power set 31 is equipped with multiple connection components 5, makes Power set 31 is dissipated to be integrally formed with battery case 2, convenient for collision impact dispersion is shared equally on battery tank shell, can effectively protect electricity Pond case 2 avoids the deformation damage of battery case 2；Wherein, it is existing that rivet, welding, clamping or threaded connection etc. can be used in connection component 5 Common connection mode connection.

With reference to attached drawing 3, the bindiny mechanism 33 includes crumple cylinder 331 and piston body 332, and the fixation of crumple cylinder 331 is set On the bearing beam 32, described 332 one end of piston body is inserted in the crumple cylinder 331, and the crumple cylinder 331 and piston Body 332 is anchored in the energy-absorbing island 4；The bindiny mechanism 33 is provided with eight groups, and longitudinal direction sets gradually four companies from top to bottom Connection mechanism 33, and two rows of array structures is laterally set respectively.

The crumple cylinder 331 folds cylinder for enhancing high molecular material, and equipped with replaceable foam pottery ball 10 in cylinder；It is described Blocks of aluminum foam is filled in piston body 332；And one end of the piston body 332 is located in the crumple cylinder 331, and is burst with described Foam pottery ball 10 in contracting cylinder 331 abuts；The peripheral side of the crumple cylinder 331 can be bellows-like structure.

The bearing beam 32 is the sandwich structure of high tensile metal sheet metal forming, support foam block 321 is filled in sandwich, to carry The ability of anti-deformation of high bearing beam 32 realizes the lightweight of bearing beam 32.

With reference to attached drawing 6, for the outer skirt on the energy-absorbing island 4 using multiple 41 gap settings of outer housing, foam block outer skirt will The global design of high-strength material is taken, increases forced area, reduces crumple depth, improves integral energy-absorbing, prevents part from breaking through Battery case is hit after the blocking of foamed material reduces energy-absorbing effect；The energy-absorbing island 4 is embedded in headstock 11, and by several suctions Can material block composite reinforcement and become one structure；Filled and process aluminium block in the energy-absorbing island 4, foamed material can be integrally or assembled The shape needed is formed, inside can inlay associated components by reserved space according to the design needs in the energy-absorbing island 4；And blocks of aluminum foam Crumple energy-absorbing can preferably protect passenger safety, while the battery pack in battery case 2 is prevented to be hit and deforms initiation explosion on fire.

Multiple outer housings 41 are connect respectively by screw 12 with the energy-absorbing island 4；And multiple outer housings 41 Supporing shell 42 is also shifted to install on the inside of gap, realizes the gear shield to the gap of multiple outer housings 41；It is conveniently replaceable, reduces simultaneously The deformation of local impact's rear casing body 41.

With reference to attached drawing 7, the shrinkable chassis 7 is vertical erect to be taken to put Combination Welding and form by several S-shaped steel bands 71, institute S-shaped steel band 71 is stated to be fixedly connected with the shrinkable chassis 7；Its structure can load-bearing again can stress crumple；The crumple chassis 7 Upper edge height of the carbody direction sets multigroup reinforcing cord band 6 energy-absorbing island 4 is fixed in headstock.

Preferably, the scattered power set 31 is made of high strength light material.

In practical collision, most impact kinetic energies can be absorbed the utility model by foams, carrying foams punching The bearing beam hit, it is necessary to enormous impact force dispersion is shared equally on the skeleton to Battery case, concentration of local stress is avoided to lead to case Body deforms.After headstock receives collision external force, strength can pass to energy-absorbing island and squeeze energy-absorbing island first, after being scattered one's forces Shock extruding force when passing to bindiny mechanism, the foam pottery ball in crumple cylinder can be squeezed first, while crumple cylinder also can be by strength Circumferential folded edge is distributed to, metal folding cylinder is strutted；After foam pottery ball, which is adequately compressed, to be crushed, impact force can incite somebody to action Piston body squeezes and towards bearing beam, and remaining kinetic energy shares battery case shell equally by bearing beam dispersion after energy-absorbing, has become smaller very much, Realize the effective energy-absorbing to collision；The structure of multiple anticollision is crossed, substantially increases anti-collision effect, more securely and reliably.

In the utility model unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be Mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be two The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field For art personnel, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that Also there are other identical elements in process, method, article or equipment including the element.

Above example is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to aforementioned reality Example is applied the utility model is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding The technical solution recorded in each embodiment is stated to modify or carry out equivalent replacement to which part technical characteristic；And these Modification is replaced, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims (9)

1. a kind of electric automobile collision protects effective energy-absorbing island structure, it is characterised in that：Including being located in car body (1) neck location Beam body system (3), the energy-absorbing island (4) in headstock (11) and the shrinkable chassis (7) of headstock (11) bottom, pass through beam body system (3), energy-absorbing island (4) and shrinkable chassis (7) are equipped with to realize effective energy-absorbing when colliding car body (1).

2. electric automobile collision according to claim 1 protects effective energy-absorbing island structure, it is characterised in that：The beam body system (3) are united including dissipating power set (31), bearing beam (32) and bindiny mechanism (33), the scattered power set (31), bearing beam (32) and connection Mechanism (33) is set gradually from back to front；The bearing beam (32) and the not shrinkable chassis (8) of car body are integrally constituted structure； Described scattered power set (31) one end is fixed on bearing beam (32), and the other end is set in battery case (2) outside；The bindiny mechanism (33) It can be shunk along length over ends of body direction, one end of which is fixed on bearing beam (32), the other end is anchored in energy-absorbing island (4).

3. electric automobile collision according to claim 2 protects effective energy-absorbing island structure, it is characterised in that：The energy-absorbing island (4) it is embedded in headstock (11), is closely set in before bearing beam (32), and by several energy-absorbing foam block (9) composite reinforcements And it becomes one structure.

4. electric automobile collision according to claim 3 protects effective energy-absorbing island structure, it is characterised in that：The bearing beam (32) the sandwich sandwich structure being process for high tensile metal plate, the interior filling support foam block (321) of sandwich, to improve load The ability of anti-deformation of beam (32), while realize the lightweight of bearing beam (32).

5. electric automobile collision according to claim 2 protects effective energy-absorbing island structure, it is characterised in that：The battery case (2) antetheca is close to the rear wall of bearing beam (32), and the battery case (2) is close to the socket part of the scattered power set (31), to carry The globality that high battery case is combined with beam body system, to realize that bearing beam (32) shares the dispersion of battery case recoil equally.

6. electric automobile collision according to claim 3 protects effective energy-absorbing island structure, it is characterised in that：The connection machine Structure (33) includes crumple cylinder (331) and piston body (332)；The crumple cylinder (331) is equipped with bubble to fold cylinder in the crumple cylinder Foam pottery ball (10)；Filled with support foam block (321) in the cavity of the piston body (332).

7. electric automobile collision according to claim 1 protects effective energy-absorbing island structure, it is characterised in that：The energy-absorbing island (4) outer skirt uses several outer housings (41) gap setting, and support is also shifted to install on the inside of the gap of the outer housing (41) Housing (42) to increase forced area when energy-absorbing island is knocked, prevents sharp component to be pierced into；The outer housing (41) and support Housing (42) is fixed on connection component (5) on energy-absorbing island (4) alien invasion.

8. electric automobile collision according to claim 1 protects effective energy-absorbing island structure, it is characterised in that：The shrinkable Chassis (7) is vertical erect to be taken to put fixed Combination and form by several S-shaped steel bands (71)；Crumple chassis (7) the upper edge car body is high It spends direction and multigroup reinforcing cord band (6) is set to fixed energy-absorbing island (4).

9. a kind of electric automobile collision protection effective energy-absorbing island structure according to claim 4 or 6, it is characterised in that：Institute It states energy-absorbing foam block (9) and support foam block (321) is metal foaming material or is metal foaming material and nonmetallic foaming Composite material.