CN202911683U - Automobile bumper with energy absorbing and pedestrian protecting device - Google Patents
Automobile bumper with energy absorbing and pedestrian protecting device Download PDFInfo
- Publication number
- CN202911683U CN202911683U CN 201220374106 CN201220374106U CN202911683U CN 202911683 U CN202911683 U CN 202911683U CN 201220374106 CN201220374106 CN 201220374106 CN 201220374106 U CN201220374106 U CN 201220374106U CN 202911683 U CN202911683 U CN 202911683U
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- Prior art keywords
- rhombus
- collision
- energy
- damping unit
- connecting panel
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Abstract
The utility model discloses an automobile bumper with an energy absorbing and pedestrian protecting device. The automobile bumper adopts a rhombic mechanism and a damping unit to disperse and consume collision energy, and the rhombic mechanism transversely transfers the energy in the collision process and decreases longitudinal impact force between a pedestrian and an automobile body. In addition, the rhombic mechanism can provide a certain safe buffering distance in the collision process through deformation, collision contact time is prolonged, and collision force is decreased. The energy decomposed by the rhombic mechanism is transferred to the damping unit, kinetic energy is converted into heat energy through relative motion of the damping unit, and finally the collision energy is consumed. Therefore, the automobile bumper can decompose the collision force, consume the collision energy, prolong the collision contact time, improve stress of persons and vehicles in the collision process and accordingly ensure safety of the persons and the vehicles to the most extent.
Description
Technical field
The utility model relates to a kind of Federal bumper, relates in particular to a kind of Federal bumper with collision energy dissipation function.
Background technology
Traffic accident is to cause one of major reason of personnel, property damage.In collision process, the pedestrian that how to adequately protect is that the bumper/spoiler design needs one of key factor of considering.Bumper/spoiler is designed with following several form at present: the bumper/spoiler that poly-mer and plastic material are made; The bumper/spoiler with energy snubber function that adopts elastic construction to make; Adopt the bumper/spoiler with Energy Decomposition or propagation function of hydraulic pressure or pneumatics; And the bumper/spoiler with active or half active control function.
The front two kinds of designs of the many employings of orthodox car bumper/spoiler namely adopt elastomeric material or plastic or other material to make.The bumper/spoiler that adopts plastics the to make member that is formed in one deforms or conquassation when knockout process, has energy absorbing function to a certain degree, but more lays particular stress on outward appearance during its design.And need the integral replacing bumper/spoiler after the collision fragmentation, and need technology and the place of specialty, expend more manpower and materials.The another kind of bumper/spoiler of elastic element that adopts has added the elastic elements such as leaf spring, air bellow, rubber, impulsive force in the time of can reducing collision, and then reduce collision to the damage of pedestrian, passenger and vehicle.Although spring element can reduce impulsive force, collision energy does not disappear, and just temporarily is stored in the elastic element, perhaps transfers to other positions of vehicle body, becomes potential safety hazard.Adopt the bumper/spoiler of hydraulic pressure or pneumatics to have complicated physical construction, manufacturing cost is higher, and the assimilation effect of energy is undesirable more.
Domestic patent (200810069551.8) has proposed a kind of buffer device for collision based on MR damper, in conjunction with half active control technology, may provide larger damping.But this scheme is directly connected in MR damper that car is driven and bumper/spoiler between, have very little moving displacement during collision, because sufficient movement travel can not be provided a bit.Patent (200910072399.3) has proposed a kind of bumper/spoiler based on shape-memory material, can restore to the original state by heating after collision occurs, and therefore can save maintenance cost, but this system needs heating, and is larger to system's energy demand; And marmem belongs to metallic material, and modulus of elasticity is very high, is unfavorable for energy dissipation.
Therefore, design a kind of have large damping and Federal bumper for ease of maintenaince, have great importance for protection pedestrian and driver and conductor.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art; a kind of Federal bumper with energy-absorbing and pedestrian protection is provided; the utility model when collision occurs by Energy Decomposition and consumption; cooperate half active control technology; reduce to greatest extent the injury to the pedestrian, reduce simultaneously the maintenance cost of damaged vehicle.
The utility model for achieving the above object, taked following technical scheme: a kind of Federal bumper with energy-absorbing and pedestrian protection, it mainly is comprised of decorative layer, brace panel, a N damping unit, a N+1 rhombus-mechanism, a 2N+2 connecting panel etc., and N is natural number; Rhombus-mechanism links to each other with damping unit successively interval; In two other summit of each rhombus-mechanism, one is installed on the decorative layer 1 by connecting panel, and another one is installed on the automobile bottom bridge front end by connecting panel; All be connected by hinge unit between rhombus-mechanism and the damping unit and between rhombus-mechanism and the connecting panel; Decorative layer is installed on the brace panel.
A kind of Federal bumper with energy-absorbing and pedestrian protection, it mainly is comprised of decorative layer, brace panel, a N pipe link, a 2N+2 damping unit, a N+1 rhombus-mechanism, a 2N+2 connecting panel etc., and N is natural number; Rhombus-mechanism links to each other with pipe link successively interval; In two other summit of each rhombus-mechanism, one is installed on the decorative layer by connecting panel, and another one is installed on the automobile bottom bridge front end by connecting panel.A damping unit is installed between relative two summits of each rhombus-mechanism, all is connected by hinge unit between rhombus-mechanism and the pipe link, between rhombus-mechanism and the damping unit and between rhombus-mechanism and the connecting panel; Decorative layer is installed on the brace panel.
Further, described damping unit is dry damping device, MR damper, electro-rheological fluid damper, air valve damper or viscoelastic damper.
Further, described rhombus-mechanism is formed by four rod hinge connections.
The beneficial effects of the utility model are:
1, general employing rhombus-mechanism and damping unit disperse collision energy, consume.Traditional bumper/spoiler design focuses on the consideration structural strength, protects to greatest extent occupant and vehicle crew's safety.Then, high strength can cause the impulsive force in the collision process excessive, and the pedestrian is caused more serious injury.The utility model is delivered to the energy in the collision process laterally by rhombus-mechanism, reduces longitudinal impact power between pedestrian and the vehicle body.Simultaneously, the distortion of rhombus-mechanism can provide a certain amount of safe buffering distance for collision process, prolongs to collide contact time, reduces the size of impact force.The energy that is decomposed by rhombus-mechanism is delivered to damping unit, and the relative motion by damping unit is with the kinetic energy energy transform into heat energy, and collision energy consumes the most at last.Therefore, the utility model can decompose impact force, consume collision energy and prolong collision contact time, improves the stressed kind of personnel and vehicle in the collision process, thereby protects to greatest extent the safety of personnel and vehicle.
2, employing is organized rhombus-mechanisms/damping unit parallel connection more and is worked simultaneously, has higher efficiency of power dissipation.When adopting a plurality of rhombus-mechanisms in parallel, when collision occurs in any one rhombus-mechanism, all be delivered to other rhombus-mechanism and drive it to produce amoeboid movement, finally cause being synchronized with the movement of all rhombus-mechanisms.All rhombus-mechanisms be synchronized with the movement so that all dampers synchronous working all consumed energy.Therefore the utility model can take full advantage of the advantage of multi-element array, improves energy efficiency.
3, adopt MR damper (comprise electro-rheological fluid damper, lower with), can active damping and the size of impact force.MR damper relies on the metamorphosis work of magnetic flow liquid, and when not applying controlling magnetic field, magnetic flow liquid is in a liquid state, and damping is less; When applying controlling magnetic field, magnetic flow liquid can become the toughening oil smectic, and larger damping can be provided, and its damping size can be regulated in real time by magnetic field.MR damper is comparatively quick to the response of control command, cooperates initiatively (half initiatively) control policy, can accurately control the damping size that needs in the collision process, thereby reduce the harm that collision produces.
4, adopt modular design, cost is low, easy to maintenance.Of the present utility modelly mainly comprise two primary clusterings: rhombus-mechanism and damping unit.By being installed, the simple array of these assemblies forms complete bumper.Required parts are few, cost is low, and the parts that can change easily loss or lose efficacy.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the work scheme drawing of embodiment 1 buffering energy-absorbing;
Fig. 3 is the structural representation of the utility model embodiment 2;
Among the figure: decorative layer 1, automobile bottom bridge front end 2, damping unit 3, rhombus-mechanism 4, connecting panel 5, hinge unit 6, connecting rod 7, pipe link 8, brace panel 9.
The specific embodiment
The below describes the utility model with reference to the accompanying drawings in detail, and it is more obvious that the purpose of this utility model and effect will become.
Fig. 1 shows the structure of the utility model embodiment 1; the Federal bumper that has energy-absorbing and pedestrian protection among this embodiment mainly is comprised of decorative layer 1, brace panel 9, a N damping unit 3, a N+1 rhombus-mechanism 4, a 2N+2 connecting panel 5, and N is natural number.Rhombus-mechanism 4 links to each other with damping unit 3 successively interval; In two other summit of each rhombus-mechanism 4, one is installed on the brace panel 9 by connecting panel 5, and another one is installed on the automobile bottom bridge front end 2 by connecting panel 5.All be connected by hinge unit 6 between rhombus-mechanism 4 and the damping unit 3 and between rhombus-mechanism 4 and the connecting panel 5.Decorative layer 1 is installed on the brace panel 9.
As shown in Figure 2, when collision occurs, decorative layer 1 contacts with knocked object or personnel, the impact that produces transfers to rhombus-mechanism 4 through brace panel 9, cause rhombus-mechanism 4 to become flat elongated, rhombus-mechanism 4 is connected two summit move toward one another that are connected with decorative layer 1 respectively with automobile bottom bridge front end, two other summit counter motion, thereby make damping unit 3 produce relative motion and produce dumping force, reach the purpose that absorbs or consume collision energy.
Fig. 3 shows the structure of another embodiment of the utility model; among this embodiment; Federal bumper with energy-absorbing and pedestrian protection mainly is comprised of decorative layer 1, brace panel 9, a N pipe link 8, a 2N+2 damping unit 3, a N+1 rhombus-mechanism 4, a 2N+2 connecting panel 5, and N is natural number.Rhombus-mechanism 4 links to each other with pipe link 8 successively interval; In two other summit of each rhombus-mechanism 4, one is installed on the brace panel 9 by connecting panel 5, and another one is installed on the automobile bottom bridge front end 2 by connecting panel 5.Each rhombus-mechanism 4 is installed a damping unit 3 between relative two summits, all is connected by hinge unit 6 between rhombus-mechanism 4 and the pipe link 8, between rhombus-mechanism 4 and the damping unit 3 and between rhombus-mechanism 4 and the connecting panel 5.Decorative layer 1 is installed on the brace panel 9.
When collision occurs, decorative layer 1 contacts with knocked object or personnel, the impact that produces transfers to rhombus-mechanism 4 through brace panel 9, cause rhombus-mechanism 4 to become flat elongated, rhombus-mechanism 4 is connected two summit move toward one another that are connected with decorative layer 1 respectively with automobile bottom bridge front end, thereby make the damping unit 3 that links to each other with these two summits produce relative motion, produce dumping force; Two other summit counter motion, thus make the damping unit 3 that links to each other with these two summits produce counter motion, produce dumping force, reach the purpose that absorbs or consume collision energy.
Claims (2)
1. the Federal bumper with energy-absorbing and pedestrian protection is characterized in that, it mainly is comprised of decorative layer (1), brace panel (9), a N damping unit (3), a N+1 rhombus-mechanism (4), a 2N+2 connecting panel (5), and N is natural number; Rhombus-mechanism (4) links to each other at the interval successively with damping unit (3); In two other summit of each rhombus-mechanism (4), one is installed on the brace panel (9) by connecting panel (5), and another one is installed on the automobile bottom bridge front end (2) by connecting panel (5); All be connected by hinge unit (6) between rhombus-mechanism (4) and the damping unit (3) and between rhombus-mechanism (4) and the connecting panel (5); Decorative layer (1) is installed on the brace panel (9).
2. Federal bumper with energy-absorbing and pedestrian protection, it is characterized in that, it mainly is comprised of decorative layer (1), brace panel (9), a N pipe link (8), a 2N+2 damping unit (3), a N+1 rhombus-mechanism (4), a 2N+2 connecting panel (5), and N is natural number; Rhombus-mechanism (4) links to each other at the interval successively with pipe link (8); In two other summit of each rhombus-mechanism (4), one is installed on the decorative layer (1) by connecting panel (5), and another one is installed on the automobile bottom bridge front end (2) by connecting panel (5); A damping unit (3) is installed between relative two summits of each rhombus-mechanism (4), all is connected by hinge unit (6) between rhombus-mechanism (4) and the pipe link (8), between rhombus-mechanism (4) and the damping unit (3) and between rhombus-mechanism (4) and the connecting panel (5); Decorative layer (1) is installed on the brace panel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374106 CN202911683U (en) | 2012-07-31 | 2012-07-31 | Automobile bumper with energy absorbing and pedestrian protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374106 CN202911683U (en) | 2012-07-31 | 2012-07-31 | Automobile bumper with energy absorbing and pedestrian protecting device |
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| Publication Number | Publication Date |
|---|---|
| CN202911683U true CN202911683U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220374106 Expired - Lifetime CN202911683U (en) | 2012-07-31 | 2012-07-31 | Automobile bumper with energy absorbing and pedestrian protecting device |
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| Country | Link |
|---|---|
| CN (1) | CN202911683U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837655A (en) * | 2012-07-31 | 2012-12-26 | 浙江大学 | Car bumper provided with energy absorption and pedestrian protection device |
| CN103318111A (en) * | 2013-05-28 | 2013-09-25 | 奇瑞汽车股份有限公司 | Automobile bumper buffer |
| CN104029646A (en) * | 2014-06-27 | 2014-09-10 | 长城汽车股份有限公司 | Anti-collision beam and automobile |
| CN104149722A (en) * | 2013-05-14 | 2014-11-19 | 北汽福田汽车股份有限公司 | Energy absorption and anticollision device on front portion of vehicle and vehicle body containing energy absorption and anticollision device |
| CN109866719A (en) * | 2019-03-22 | 2019-06-11 | 安徽彤上智能科技有限公司 | A kind of collision prevention girders of the high stable structure of intensity |
-
2012
- 2012-07-31 CN CN 201220374106 patent/CN202911683U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837655A (en) * | 2012-07-31 | 2012-12-26 | 浙江大学 | Car bumper provided with energy absorption and pedestrian protection device |
| CN102837655B (en) * | 2012-07-31 | 2015-06-17 | 浙江大学 | Car bumper provided with energy absorption and pedestrian protection device |
| CN104149722A (en) * | 2013-05-14 | 2014-11-19 | 北汽福田汽车股份有限公司 | Energy absorption and anticollision device on front portion of vehicle and vehicle body containing energy absorption and anticollision device |
| CN103318111A (en) * | 2013-05-28 | 2013-09-25 | 奇瑞汽车股份有限公司 | Automobile bumper buffer |
| CN103318111B (en) * | 2013-05-28 | 2016-07-06 | 奇瑞汽车股份有限公司 | A kind of Automobile bumper buffer |
| CN104029646A (en) * | 2014-06-27 | 2014-09-10 | 长城汽车股份有限公司 | Anti-collision beam and automobile |
| CN104029646B (en) * | 2014-06-27 | 2016-03-02 | 长城汽车股份有限公司 | Collision prevention girders and automobile |
| CN109866719A (en) * | 2019-03-22 | 2019-06-11 | 安徽彤上智能科技有限公司 | A kind of collision prevention girders of the high stable structure of intensity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130501 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |