CN202163494U - Automotive energy-absorbing beam structure - Google Patents
Automotive energy-absorbing beam structure Download PDFInfo
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- CN202163494U CN202163494U CN201120202967XU CN201120202967U CN202163494U CN 202163494 U CN202163494 U CN 202163494U CN 201120202967X U CN201120202967X U CN 201120202967XU CN 201120202967 U CN201120202967 U CN 201120202967U CN 202163494 U CN202163494 U CN 202163494U
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- absorbing beam
- absorbing
- beam body
- elastic body
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Abstract
The utility model discloses an automotive energy-absorbing beam structure, which comprises an energy-absorbing beam body. An elastic body fixed with the energy-absorbing beam body is arranged in the energy-absorbing beam body, and a retraction space is reserved between the outer surface of the elastic body and the inner wall of the energy-absorbing beam body. The technical scheme mainly includes that by the aid of the elastic body mounted in a cavity inside the energy-absorbing beam body, the energy-absorbing beam body is squashed when vehicles are in collision, impact force from the outside is disintegrated by the elastic body and the energy-absorbing beam body jointly when the energy-absorbing beam body is squashed to a certain degree, and the elastic body absorbs the borne impact force through deformation and converts the rigid impact into flexible impact, so that impact effect time can be prolonged, instantaneous impact strength is reduced, and further life safety of passengers and intactness of an automotive main structure are protected to a maximum degree. The automotive energy-absorbing beam structure is simple in structure, convenient in assembly and applicable to all vehicles, and can be mounted at the positions of front bumpers and rear bumpers of automobiles.
Description
Technical field
The utility model relates to a kind of safety device of vehicle, relates in particular to a kind of vehicle collision energy-absorbing girder construction.
Background technology
Current society is along with the continuous increase of vehicle, and the vehicle collision that traffic accident causes is also in continuous increase.In order to guarantee vehicle occupant's when colliding safety, this just requires vehicle is carried out the crash structure design, improves the anti-collision of vehicle.In the prior art, all can the installation shock energy absorption device on the vehicle, mainly comprise energy-absorbing beam etc.When bump took place vehicle, the energy-absorbing beam was by conquassation, thereby played the effect that outside energy is impacted that absorbs.Existing vehicle collision energy absorption device is generally all described in patent documentation 1 and patent documentation 2.
Patent documentation 1: Chinese patent publication number CN 1948074A name is called step-by-step type energy absorption device during collision of automobiles.
Patent documentation 2: Chinese patent publication number CN 201427589Y name is called the addition type collision energy-absorbing device.
In above-mentioned existing design, in order to strengthen the endergonic effect of energy absorption device, energy-absorbing beam inside all is provided with brace panel or steel pipe; When fierce collision took place vehicle, huge impact power made energy-absorbing beam moment generation gross distortion, thus conquassation in-to-in brace panel or steel pipe; Because brace panel and steel pipe all are metal material; Then produce rigid collision once more, it has not well delayed the effect of impact time, does not well reduce impact strength yet.If this moment brace panel coupling stiffness or the rigidity that himself rigidity is better than the energy-absorbing beam; After treating that the energy-absorbing beam conquassation and is destroyed fully; Then the enormous impact power of collision generation will be directly delivered on the automobile body; Energy absorption device has just been lost its due energy-absorbing effect, so that machinery space and fuselage be damaged, and injures occupant's the security of the lives and property at last.
The utility model content
Decompose impulsive force, absorb the less-than-ideal problem of outside energy effect to energy-absorbing beam in the prior art; The utility model provides a kind of and can decompose and the absorption outside energy by actv., protects the vehicle collision energy-absorbing girder construction of occupant and automobile body safety to greatest extent.
In order to solve the technical matters of above-mentioned existence; The utility model adopts following technical proposals: a kind of vehicle energy-absorbing girder construction; It comprises along the tubular energy-absorbing beam of vehicle front and back axis direction body; Said energy-absorbing beam body interior is provided with and its fixing elastic body, and said elastic body and energy-absorbing beam inner body wall are provided with the crumple space.During collision happens; The energy-producing impact that is collided earlier of energy-absorbing beam body; Under the effect of impulsive force, energy-absorbing beam body produces distortion and crumple, brings into play the effect of its energy-absorbing; The crumple space receives the conquassation space for the enough distortion of energy-absorbing beam body, and it has guaranteed that energy-absorbing beam body absorbs extraneous impulsive force to greatest extent.Mostly energy-absorbing beam body is metal material, and its bending strength and compressive strength all have a limit, in case surpass this limit; Material will be bent or break; Structure will be destroyed, thereby loses the effect of its energy-absorbing, so must be decomposed impulsive force before the conquassation fully at energy-absorbing beam body; Avoid energy remaining to act on vehicle body fully, will guarantee that also energy-absorbing beam body can be fully by conquassation and destruction simultaneously.The elastic body of energy-absorbing beam body interior has just well played this effect, and elastic body is fixed in the energy-absorbing beam body, to guarantee existing of crumple space between it and the inwall; When crumple was arrived to a certain degree, elastic body received the extruding from energy-absorbing beam inwall, thereby deformation takes place; In deformation process, impulsive force changes strain energy of elastic body into, and elastic body absorbs remaining impact energy through distortion; Change flexible bump into bumping against rigid impact; Delay the in-service time of bump, reduced instantaneous impact strength, thereby protected occupant's life security and vehicle keystone configuration intact to greatest extent.
As preferably, the gap length of said outer elastomeric surface and each face of energy-absorbing beam inner body wall is 3 millimeters to 5 millimeters.Each face of said cavity inner wall is and each parallel face of vehicle front and back axis direction.According to the bending resistance and the tensile strength characteristic of energy-absorbing beam bulk material, choosing the gap width magnitude range is 3 millimeters to 5 millimeters, can be to guarantee energy-absorbing beam body by complete conquassation and destruction in the endergonic while, and the best energy-absorbing effect of performance energy-absorbing girder construction.
As preferably, said energy-absorbing beam body is provided with at least 1 guiding groove on the side more than 2 or 2, and said guiding groove is strip, is in vertical distribution with axis direction before and after the vehicle.Axis direction is the tubular layout to energy-absorbing beam body along the vehicle front and back; On the side 2 or 2 or more parallel, be provided with guiding groove with this axis direction; If on 2 sides, be provided with guiding groove, preferably be located on 2 relative faces, 1 or many guiding grooves are arranged on each face.During collision happens, because the stressed cross section of guiding groove is little, deformation taking place at first, brings into play the effect of its directed force, thereby guide generation deformation of whole energy-absorbing beam body and crumple.
As preferably, said elastic body and energy-absorbing beam body are fixed by bolted connection.The front or rear safety lever of energy-absorbing beam body front end face and vehicle is fixed, and aft end face and vehicle body are fixed.In order to guarantee the effect of its energy-absorbing of elastic body performance, need prevent that elastic body from rotating or slip in energy-absorbing beam body interior, elastic body and energy-absorbing beam body are by bolt.According to the demand of processing or assembling, bolt can be installed in energy-absorbing beam body front end face place, also can be installed in end thereafter.
As preferably, said elastic body and energy-absorbing beam body are for being adhesively fixed.Adopt colloid bonding convenient to operation, Joint strenght and respond well.Sticky object can be coated in energy-absorbing beam chamber body and elastomeric end face.
As preferably, fit in said guiding groove groove lowest surfaces and elastic body side.The lowest surfaces of elastic body and guiding groove groove fits and can play certain spacing fixation, elastomeric rotation or mobile in the time of also can limiting assembling.
As preferably, said this body section of energy-absorbing beam is a rectangle, so elastomeric cross section also is a rectangle.Said cross section is the square section perpendicular to axis direction before and after the vehicle.Because the size of vehicle, type are different, so according to different vehicle institute design-calculated energy-absorbing beam body shape, size also can be different.Preferred as further, said rectangle is provided with 2 chamferings of symmetry each other, and the cross section is hexagon, more helps the energy-absorbing beam and absorbs energy.
As preferably, said elastic body adopts rubber to process.The rubber price is cheap, density is little, can bear various loads, power and temperature of the high end, can under complicated and exacting terms, use, and the cushion characteristic and the performance of being damaged are preferably arranged.
The utility model vehicle energy-absorbing girder construction has following beneficial effect compared with prior art:
1. the crumple space between energy-absorbing beam body and the elastic body enough distortion receives the conquassation space for the former in this structure, has guaranteed that energy-absorbing beam body absorbs extraneous impulsive force to greatest extent, has improved the effect of its energy-absorbing.This structure is through the plastoelastic deformation of elastomer block, is converted into flexible bump to rigid collision, avoided energy-absorbing beam body fully by conquassation and destruction, and the safety of occupant and vehicle structure is protected in its decomposition and absorb the satisfactory for result of foreign impacts energy to greatest extent.
2. simple in structure, easy to assembly, material price is cheap, and the elastic body light weight has alleviated the overall weight of vehicle.
3. this structure applications is in extensive range, is applicable to all vehicles, can be installed in the safety lever place of automobile body front and back.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the longitudinal sectional view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the cutaway view of the utility model embodiment 2.
Among the figure, 1, energy-absorbing beam body 2, elastic body 3, bolt 4, guiding groove.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Embodiment 1: as shown in Figure 2; A kind of vehicle energy-absorbing girder construction; It comprises along the tubular energy-absorbing beam of vehicle front and back axis direction body 1; Energy-absorbing beam body 1 inside is provided with and its fixing elastic body 2, and elastic body 2 outside faces and energy-absorbing beam body 1 inwall are provided with the crumple space, and its gap length is 4 millimeters.As shown in Figure 3, the cross section of energy-absorbing beam body is a rectangle.As shown in Figure 1, on 2 relative horizontal surfaces of energy-absorbing beam body, 2 guiding grooves 4 are arranged respectively, on 2 sides in addition 3 guiding grooves 4 are arranged respectively, guiding groove 4 is strip, is in vertical distribution with axis direction before and after the vehicle.Elastic body 2 is captiveed joint by 4 bolts 3 with the aft end face of energy-absorbing beam body 1.When collision happens; The energy-absorbing beam body 1 energy-producing impact that is collided at first; Under the effect of impulsive force, guiding groove 4 guiding external force make energy-absorbing beam body 1 toward elastic body 2 places crumple; Elastic body 2 receives the conquassation space for the 1 enough distortion of energy-absorbing beam body in the gap of inwall all around with energy-absorbing beam body 1, has guaranteed that it absorbs extraneous impulsive force to greatest extent.When 1 crumple of energy-absorbing beam body is arrived to a certain degree, the complete crumple of 4 mm clearance, it just pushes elastic body 2; Elastic body 2 receives the extruding from energy-absorbing beam inwall, thereby deformation takes place, and avoids energy-absorbing beam body to continue crumple and suffers to damage fully; In deformation process, elastic body 2 changes impulsive force into self strain energy, absorbs remaining impact energy through distortion; Change flexible bump into bumping against rigid impact; Delay the in-service time of bump, reduced instantaneous impact strength, thereby protected occupant's life security and vehicle keystone configuration intact to greatest extent.
Embodiment 2: as shown in Figure 4; A kind of vehicle energy-absorbing girder construction; It comprises along the tubular energy-absorbing beam of vehicle front and back axis direction body 1; Energy-absorbing beam body 1 inside is provided with and its fixing elastic body 2, and elastic body 2 outside faces and energy-absorbing beam body 1 inwall are provided with the crumple space, and its gap length is 4 millimeters.This vehicle energy-absorbing beam body 1 cross section is a hexagon, can be considered the combination of a trapezoidal and rectangle, has 6 sides; Wherein on 4 faces, all be provided with guiding groove 4; Respectively have 2 on each face, guiding groove 4 is strip, is in vertical distribution with axis direction before and after the vehicle.Elastic body 2 and energy-absorbing beam body 1 are for being adhesively fixed, and the colloid of bonding usefulness is applied on 2 end faces of energy-absorbing beam body 1, also scribble colloid, convenient location and installation on the binding face of guiding groove 4 and elastic body 2.The principle of work of this embodiment is identical with embodiment 1.
Claims (9)
1. vehicle energy-absorbing girder construction; It comprises the axis direction tubular energy-absorbing beam body (1) along the vehicle front and back; It is characterized in that: said energy-absorbing beam body (1) inside is provided with and its fixing elastic body (2), and said elastic body (2) outside face and energy-absorbing beam body (1) inwall are provided with the crumple space.
2. vehicle energy-absorbing girder construction according to claim 1 is characterized in that: the gap length of said elastic body (2) outside face and energy-absorbing beam body (1) each face of inwall is 3 millimeters to 5 millimeters.
3. vehicle energy-absorbing girder construction according to claim 1 and 2; It is characterized in that: said energy-absorbing beam body (1) is provided with at least 1 guiding groove (4) on the side more than 2 or 2; Said guiding groove (4) is strip, is in vertical distribution with axis direction before and after the vehicle.
4. vehicle energy-absorbing girder construction according to claim 1 is characterized in that: said elastic body (2) is connected fixing with energy-absorbing beam body (1) by bolt (3).
5. vehicle energy-absorbing girder construction according to claim 1 is characterized in that: said elastic body (2) and energy-absorbing beam body (1) are for being adhesively fixed.
6. vehicle energy-absorbing girder construction according to claim 3 is characterized in that: fit in said guiding groove (4) groove lowest surfaces and elastic body (2) side.
7. vehicle energy-absorbing girder construction according to claim 1 is characterized in that: said energy-absorbing beam body (1) cross section is a rectangle.
8. vehicle energy-absorbing girder construction according to claim 7 is characterized in that: said rectangle is provided with 2 chamferings of symmetry each other, and the cross section is hexagon.
9. vehicle energy-absorbing girder construction according to claim 1 and 2 is characterized in that: said elastic body (2) adopts rubber to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120202967XU CN202163494U (en) | 2011-06-16 | 2011-06-16 | Automotive energy-absorbing beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120202967XU CN202163494U (en) | 2011-06-16 | 2011-06-16 | Automotive energy-absorbing beam structure |
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| Publication Number | Publication Date |
|---|---|
| CN202163494U true CN202163494U (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120202967XU Expired - Fee Related CN202163494U (en) | 2011-06-16 | 2011-06-16 | Automotive energy-absorbing beam structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448803A (en) * | 2013-04-11 | 2013-12-18 | 浙江吉利汽车研究院有限公司杭州分公司 | Floor rear crossbeam reinforcing structure |
| CN113015600A (en) * | 2018-12-21 | 2021-06-22 | 喜利得股份公司 | Portable power tool |
-
2011
- 2011-06-16 CN CN201120202967XU patent/CN202163494U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448803A (en) * | 2013-04-11 | 2013-12-18 | 浙江吉利汽车研究院有限公司杭州分公司 | Floor rear crossbeam reinforcing structure |
| CN103448803B (en) * | 2013-04-11 | 2016-01-20 | 浙江吉利汽车研究院有限公司杭州分公司 | A kind of Floor rear crossbeam strengthens structure |
| CN113015600A (en) * | 2018-12-21 | 2021-06-22 | 喜利得股份公司 | Portable power tool |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20190616 |