CN104175985A - Magnetic control cement based automobile collision buffering system - Google Patents
Magnetic control cement based automobile collision buffering system Download PDFInfo
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- CN104175985A CN104175985A CN201410445695.4A CN201410445695A CN104175985A CN 104175985 A CN104175985 A CN 104175985A CN 201410445695 A CN201410445695 A CN 201410445695A CN 104175985 A CN104175985 A CN 104175985A
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- buffering
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- automobile collision
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Abstract
The invention provides a magnetic control cement based automobile collision buffering system. The magnetic control cement based automobile collision buffering system comprises a buffering capsule and a magnetic buffering pressure relief device; the buffering capsule is filled with magnetic control cement; the buffering capsule is arranged on the outer side of an automobile anti-collision baffle plate; the magnetic buffering pressure relief device is communicated with the magnetic buffering capsule in a sealing mode. According to the magnetic control cement based automobile collision buffering system, an automobile collision buffering device is effectively divided into three-stage extrusion flow buffering and accordingly the magnetic control cement based automobile collision buffering system can be suitable for different speeds of collisions and the length of a circulation damping channel of the three-stage controllable magnetic control cement is effectively increased on the premise of the small size due to a multi-division-plate structure and accordingly the collision energy can be absorbed by the device in a maximum mode and the harm of an automobile to a driver and passengers during a collision is greatly reduced.
Description
Technical field
The present invention relates to auto against technical field, relate in particular to a kind of buffering automobile collision system based on magnetic control clay.
Background technology
In recent years, along with the swift and violent increase of China's automobile quantity, safety traffic has become a very important problem, vehicle passive safety technology is as the most important thing, to avoid driver and crew to suffer disability or even dead unique guarantee, especially in the time of automobile generation head-on crash, be mainly to absorb impact kinetic energy and reduce impulsive force by anterior buffering energy-absorbing assembly.Current most of automatic buffer energy absorption device is mainly the mode of the pure physical construction, air pressure or the hydraulic pressure that design for the specific impact strength of automobile, and these modes cannot completely have been sent out the demand of people for automotive safety gradually.In recent years along with scientific and technological development, MR damper is applied more and more widely, MR damper is a kind of shock absorber part for half ACTIVE CONTROL suspension that recent two decades occurs, have simple in structure, dumping force is continuous and contrary along adjustable, and dumping force variable range is large, response is fast, excellent in stability and the feature such as can be combined with microcomputer control, at present, MR damper is at vehicle suspension system, cable-stayed bridge cable vibration control, the aspects such as the vibration damping of offshore platform structure and the vibration isolation of skyscraper have obtained preliminary application, show good application prospect.But there is the problem of particles settling due to cost and magnetic flow liquid itself, MR damper is not also having generally for civil car at present, majority is all used in some luxury cars and military equipment, and feature when current MR damper can not bump according to automobile is carried out self adaptation adjusting, has significant limitation.
Summary of the invention
In view of this; the invention provides a kind of buffer device for collision of automobile based on magnetic control clay; can the feature in the time that automobile bumps carry out self adaptation and regulate rigidity and the dumping force of shock absorber, be automobile in the time bumping, protect to greatest extent driver and crew.
Buffering automobile collision system based on magnetic control clay provided by the invention, comprise: inside is filled with buffering capsule and the magnetic buffering pressure relief device of magnetic control clay, described buffering capsule is arranged on automobile collision preventing baffle plate outside, and described magnetic buffering pressure relief device is communicated with the sealing of buffering capsule.
Further, also comprise bumper/spoiler conquassation beam, one end of described bumper/spoiler conquassation beam is communicated with the sealing of buffering capsule, and the other end is communicated with the sealing of magnetic buffering pressure relief device, and described magnetic buffering pressure relief device is inner by automobile conquassation beam and buffering capsule internal communication.
Further, described magnetic buffering pressure relief device at least comprises buffering inner core and is coated at the excitation coil of buffering inner core;
The two ends of described buffering inner core are provided with cutoff port, and one end of buffering inner core is communicated with buffering capsule by bumper/spoiler conquassation beam, outside the other end of described dash pot and be positioned at opening place and be provided with pressure cover plate;
Described buffering inner core inner side is provided with the division board that the internal insulation of dash pot is become to two cavity volumes, and described division board is provided with the cutoff port that two cavity volumes are communicated with;
In described two isolation cavity volumes, be fixedly installed respectively a dash plate, between described dash plate and the sidewall of buffering inner core, there is liquid ebb interval.
Further, described buffering inner core outer setting has buffering urceolus, between described buffering inner core and buffering urceolus, forms a seal cavity that excitation coil is installed.
Further, described buffering capsule is arranged between anti-collision baffle plate outside and Federal bumper shell, is provided with cutoff port on anti-collision baffle plate, and buffering capsule is by cutoff port and bumper/spoiler conquassation beam internal communication.
Further, described bumper/spoiler conquassation beam adopts bellows structure, and one end is fixedly connected on automobile collision preventing baffle plate inner side, and the other end is fixedly connected on automobile longitudinal girder.
Further, also comprise: for controlling the controller of excitation coil outgoing current size and the detecting device for detection of Automobile Collision Velocity, the collision velocity that described controller detects according to detecting device, control the outgoing current of excitation coil, the dumping force that while controlling auto against, magnetic buffering pressure relief device produces.
Further, described magnetic control clay comprises: elastic cement, carbonyl iron dust and additive, the main component of described elastic cement is organopolysiloxane.
Further, the quantity of described buffering capsule and magnetic buffering pressure relief device is at least 2, and is symmetrically distributed in anti-collision baffle plate inner side.
Further, described buffering capsule is the sulfuration of built-in steel wire or cotton net and the wedge structure with radian.
Beneficial effect of the present invention: the present invention is divided into three extrusion flow bufferings by buffer device for collision of automobile actv. and arranges, and forms three grades of bufferings, goes for the collision of friction speed; Utilize many diaphragm structures actv. under smaller size smaller to increase the length of the circulation damp channel of three grades of controlled magnetic control clay, make device can absorb to greatest extent collision energy, the injury of automobile to driver and crew while significantly reducing collision generation; In the time that collision occurs, magnetic buffering pressure relief device is according to the outgoing current of Automobile Collision Velocity control excitation coil, the dumping force producing while controlling auto against.The magnetic control clay material that the present invention adopts, has had the advantage of elastic cement and magnetic flow liquid concurrently, can be good at stoping the sedimentation of carbonyl iron particles, has function admirable, ageing-resistant and resistant to elevated temperatures feature.In addition, compact conformation of the present invention, very little to existing vehicle change, only in the structure of the existing bumper/spoiler of automobile and longeron, improve, be applicable to install replacement in existing different automobile types.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural principle schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, buffering automobile collision system based on magnetic control clay, comprise: buffering capsule 15, bumper/spoiler conquassation beam 19, Federal bumper shell 18, automobile longitudinal girder 20, anti-collision baffle plate 10, cutoff port (5,6,12,13), mozzle 14, end cap 2, excitation coil 1, excitation coil inner core 8, excitation coil urceolus 9, division board 4, dash plate 7, pressure cover plate 3, detecting device 16 and controller 17.
As shown in Figure 1, buffering capsule 15 is arranged between anti-collision baffle plate 10 and bumper skin 18, and sealing is arranged on anti-collision baffle plate 10 outsides formation first order magnetic control clay buffer containers; One end fixing seal of bumper/spoiler conquassation beam 19 is arranged on anti-collision baffle plate 10 inner sides, and the other end and automobile longitudinal girder 20 are tightly connected and form second stage magnetic control clay buffer container; One end that bumper/spoiler conquassation beam 19 is connected with anti-collision baffle plate 10 inner sides is communicated with first order magnetic control clay buffer container by cutoff port 13, and one end that bumper/spoiler conquassation beam is connected with automobile longitudinal girder is communicated with mozzle 14 one end by the cutoff port 12 being arranged on automobile longitudinal girder; The other end of mozzle 14 is connected with end cap 2; End cap 2 is arranged on automobile longitudinal girder one side; Placements that keep at a certain distance away in excitation coil inner core 8 of division board 4 and dash plate 7, excitation coil inner core 8 two ends connect end caps 2 and form an airtight buffering inner core, buffering inner core formation third stage magnetic control clay buffer container.Excitation coil urceolus 9 is arranged on excitation coil 1 outside and is connected with two end cap 2 inner sides, excitation coil urceolus 9 is the buffering urceolus of magnetic buffer device, excitation coil is arranged between buffering inner core and buffering urceolus, because buffering inner core and the both sides of buffering urceolus are provided with end cap 2 jointly, therefore cushioning between inner core and buffering urceolus is seal cavity, excitation coil is arranged in seal cavity, has shielding and disturbs, and avoids being subject to the effect of damage; Pressure cover plate 3 is installed on cutoff port 5 places of end cap 2; Controller 17 is connected with excitation coil 1 and detecting device 16 respectively.
In the present embodiment, first order magnetic control clay buffer container, second stage magnetic control clay buffer container and third stage magnetic control clay buffer container internal communication, and be filled with magnetic control clay 11, in the time that automobile bumps, Federal bumper shell is subject to clashing into generation deformation, making to cushion capsule 15 is squeezed, magnetic control clay 11 in first order magnetic control clay buffer container flows into the second stage magnetic control clay buffer container of Federal bumper conquassation beam 19 inner chambers by cutoff port 13, form extrusion flow buffering for the first time, the magnetic control clay of Federal bumper conquassation beam 19 inner chambers flows to third stage magnetic control clay buffer container by the mozzle 14 being arranged on automobile longitudinal girder simultaneously, form extrusion flow buffering for the second time, magnetic control clay 11 passes through in container III by division board 7, dash plate 4, the runner that excitation coil inner core 8 forms is washed pressure cover plate 3 open and is formed controlled extrusion flow buffering for the third time.Pressure cover plate 3 is decompression cover, in the time that pressure reaches certain value in described third stage magnetic control clay buffer container, can be rushed to open pressure release.In the present embodiment, dash plate 7 is arranged on excitation coil inner core 8, and buffering inner core is divided into two buffer volume 21, is separately installed with division board 7 in buffer volume 21, and dash plate 4 and division board 7 are to each other at a distance of certain distance.Adopting this structure, can increase at actv. under smaller size smaller the length of the circulation damp channel of three grades of controlled magnetic control clay, is that shock absorber can absorb collision energy to greatest extent.
In the present embodiment, controller 17 detects the relative velocity between automobile and obstacle by detecting device 16, judge whether automobile can bump and collide the collision velocity while generation, simultaneously because the electric current in excitation coil increases, cutoff port internal magnetic field will strengthen, the resistance that magnetic control clay flows through cutoff port increases thereupon, the dumping force of damper output is increased, otherwise, electric current reduces, dumping force also reduces, therefore, controller can be according to different collision velocity of when collision, self adaptation regulates the size of the outgoing current of excitation coil in magnetic buffering pressure relief device, change respectively rigidity and the damping of three grades of buffer structures, reduce greatly automobile injury to driver and crew in the time bumping.In the present embodiment, adopt a controllable electric power to be connected with controller and excitation coil respectively, the outgoing current of the information control controllable electric powers such as the collision velocity that controller detects according to detecting device, to realize the control of the outgoing current to excitation coil, and then the dumping force of control magnetic buffering pressure relief device generation, in the prior art, the method of this realization control outgoing current has a lot, and those skilled in the art can clearly understand specific implementation process, therefore do not identify in the accompanying drawings.
In the present embodiment, Federal bumper conquassation beam 19 adopts bellows structure, and this structure can be in the time that serious collision occurs automobile, and bumper/spoiler conquassation beam produces deformation, for collision produces certain buffer action, further increases the safety of auto against.
The magnetic control clay 11 that the present embodiment adopts is mainly made up of elastic cement, carbonyl iron dust, additive.The main component of elastic cement is organopolysiloxane, main chain is made up of Si-O-Si key, the bond energy of Si-O key is much larger than the bond energy of C-C key and not containing two keys, therefore there is ageing-resistant, high temperature resistant (80～250 DEG C) performance, shear yield stress can reach 120 kPas, and response time is about 50 milliseconds, magnetic control viscosity setting range wide (approximately 15 to 20 times), compressible 10% to 15% in plus load effect lower volume, and nontoxic.Magnetic control clay has had the advantage of elastic cement and magnetic flow liquid concurrently, both there is fluid behaviour, also there is magnetic effect characteristic simultaneously, because the heavy body of elastic cement and special helical structure can be good at stoping the sedimentation of carbonyl iron particles, make magnetic control clay become a kind of magnetorheological materials of function admirable, apply this material and can have low speed collision performance concurrently in the time that automobile bumps, also there is high-speed adaptive adjusting function simultaneously.
In the present embodiment, buffering capsule 15 is built-in steel wire or cotton net sulfuration and the contract type structure with certain radian; End cap 2, excitation coil urceolus 9, division board 4 and dash plate 7 are the dead-soft steel that magneto-conductivity is high; Excitation coil inner core 8 is the corrosion-resistant steel that permeability is low; Excitation coil 1 is by the coiling of enamel-cover copper conductor.
In the present embodiment, detecting device adopts radar detection apparatus, four radar detection apparatus are arranged on the same level line in automobile collision preventing baffle plate outside, also can adopt that other can realize the device of said function as rang sensor etc., four radar installations are surveyed obstacle, the data of detection are delivered to controller, controller can also judge how relative velocity between automobile and obstacle and automobile and obstacle bump according to the data that detect, as central collision, oblique impact, biasing is touched etc., this speed detection method is a kind of prior art, those skilled in the art can be readily appreciated that how to realize, therefore repeat no more concrete testing process.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. the buffering automobile collision system based on magnetic control clay, it is characterized in that: at least comprise: inside is filled with buffering capsule and the magnetic buffering pressure relief device of magnetic control clay, described buffering capsule is arranged on automobile collision preventing baffle plate outside, and described magnetic buffering pressure relief device is communicated with the sealing of buffering capsule.
2. the buffering automobile collision system based on magnetic control clay according to claim 1, it is characterized in that: also comprise bumper/spoiler conquassation beam, one end of described bumper/spoiler conquassation beam is communicated with the sealing of buffering capsule, the other end is communicated with the sealing of magnetic buffering pressure relief device, and described magnetic buffering pressure relief device is inner by automobile conquassation beam and buffering capsule internal communication.
3. the buffering automobile collision system based on magnetic control clay according to claim 2, is characterized in that: described magnetic buffering pressure relief device at least comprises buffering inner core and is coated at the excitation coil of buffering inner core;
The two ends of described buffering inner core are provided with cutoff port, and one end of buffering inner core is communicated with buffering capsule by bumper/spoiler conquassation beam, outside the other end of described dash pot and be positioned at opening place and be provided with pressure cover plate;
Described buffering inner core inner side is provided with the division board that the internal insulation of dash pot is become to two cavity volumes, and described division board is provided with the cutoff port that two cavity volumes are communicated with;
In described two isolation cavity volumes, be fixedly installed respectively a dash plate, between described dash plate and the sidewall of buffering inner core, there is liquid ebb interval.
4. the buffering automobile collision system based on magnetic control clay according to claim 3, is characterized in that: described buffering inner core outer setting has buffering urceolus, between described buffering inner core and buffering urceolus, forms a seal cavity that excitation coil is installed.
5. the buffering automobile collision system based on magnetic control clay according to claim 4, it is characterized in that: described buffering capsule is arranged between anti-collision baffle plate outside and Federal bumper shell, on anti-collision baffle plate, be provided with cutoff port, buffering capsule is by cutoff port and bumper/spoiler conquassation beam internal communication.
6. the buffering automobile collision system based on magnetic control clay according to claim 5, is characterized in that: described bumper/spoiler conquassation beam adopts bellows structure, and one end is fixedly connected on automobile collision preventing baffle plate inner side, and the other end is fixedly connected on automobile longitudinal girder.
7. the buffering automobile collision system based on magnetic control clay according to claim 6, it is characterized in that: also comprise: for controlling the controller of excitation coil outgoing current size and the detecting device for detection of Automobile Collision Velocity, the collision velocity that described controller detects according to detecting device, control the outgoing current of excitation coil, the dumping force that while controlling auto against, magnetic buffering pressure relief device produces.
8. the buffering automobile collision system based on magnetic control clay according to claim 7, is characterized in that: described magnetic control clay comprises: elastic cement, carbonyl iron dust and additive, the main component of described elastic cement is organopolysiloxane.
9. the buffering automobile collision system based on magnetic control clay according to claim 8, is characterized in that: the quantity of described buffering capsule and magnetic buffering pressure relief device is at least 2, and is symmetrically distributed in anti-collision baffle plate inner side.
10. the buffering automobile collision system based on magnetic control clay according to claim 9, is characterized in that: described buffering capsule is built-in steel wire or cotton net sulfuration and the wedge structure with radian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445695.4A CN104175985B (en) | 2014-09-03 | 2014-09-03 | Buffering automobile collision system based on magnetic control clay |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445695.4A CN104175985B (en) | 2014-09-03 | 2014-09-03 | Buffering automobile collision system based on magnetic control clay |
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| Publication Number | Publication Date |
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| CN104175985A true CN104175985A (en) | 2014-12-03 |
| CN104175985B CN104175985B (en) | 2016-08-31 |
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| CN201410445695.4A Expired - Fee Related CN104175985B (en) | 2014-09-03 | 2014-09-03 | Buffering automobile collision system based on magnetic control clay |
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Cited By (4)
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| CN105422722A (en) * | 2016-01-07 | 2016-03-23 | 重庆大学 | Variable-damping clearance magneto-rheological buffer and self-adaptive control method thereof |
| CN106224429A (en) * | 2016-08-09 | 2016-12-14 | 吉首大学 | The damping of band sine wave and the electronic equipment platform of magnetic field bumper and absorbing shock |
| CN106608234A (en) * | 2015-10-23 | 2017-05-03 | 北汽福田汽车股份有限公司 | Vehicle collision energy sucking device and method thereof and vehicle |
| CN109720372A (en) * | 2019-01-12 | 2019-05-07 | 张伟明 | A kind of railway locomotive head energy dissipating anticreeper |
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| CN105422722A (en) * | 2016-01-07 | 2016-03-23 | 重庆大学 | Variable-damping clearance magneto-rheological buffer and self-adaptive control method thereof |
| CN106224429A (en) * | 2016-08-09 | 2016-12-14 | 吉首大学 | The damping of band sine wave and the electronic equipment platform of magnetic field bumper and absorbing shock |
| CN109720372A (en) * | 2019-01-12 | 2019-05-07 | 张伟明 | A kind of railway locomotive head energy dissipating anticreeper |
| CN109720372B (en) * | 2019-01-12 | 2020-04-21 | 林驰杰 | Energy dissipation anticreeper for locomotive |
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