CN203267964U - Automobile anti-collision beam with strong energy absorption performance - Google Patents
Automobile anti-collision beam with strong energy absorption performance Download PDFInfo
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- CN203267964U CN203267964U CN 201320244152 CN201320244152U CN203267964U CN 203267964 U CN203267964 U CN 203267964U CN 201320244152 CN201320244152 CN 201320244152 CN 201320244152 U CN201320244152 U CN 201320244152U CN 203267964 U CN203267964 U CN 203267964U
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Abstract
An automobile anti-collision beam with strong energy absorption performance is used for solving the problem that a conventional automobile anti-collision beam structure cannot guarantee strong energy absorption for a small mounting space of a light weight small-sized automobile. The automobile anti-collision beam comprises a beam, as well as an energy absorption device and a mounting board both arranged on two sides of the beam and symmetrical to each other; two ends of the energy absorption device are connected with the mounting board and the beam respectively. The automobile anti-collision beam is characterized in that the beam adopts the structure taking the shape of two squares stacked vertically and formed by frame boards on the periphery and a central beam energy absorption guide bar; the overall structure of the beam is of an arc shape; on the cross section of the beam, the beam energy absorption guide bar is of an arc shape; the bottom surface of the beam is straight; the top surface of the beam is of an arc shape. According to the utility model, through structural improvement on the beam and the energy absorption device, when collision happens, energy is absorbed first by the beam, then by the energy absorption device; the energy absorption device is used to enhance the uniform circulation energy absorption effect, so that the strong energy absorption performance of the whole automobile anti-collision beam is guaranteed.
Description
Technical field
The utility model relates to a kind of automobile-used parts, particularly is applicable to the automobile buffer beam with high energy absorption performance of various C-classs, belongs to automobile technical field.
Background technology
Automobile buffer beam be protect to greatest extent the vitals of occupant safety, its main composition to comprise crossbeam when automobile crashes and be connected in crossbeam and the car body adapter plate between energy absorber.General beam structure does not possess energy-absorbing effect substantially, is mainly used in impact force is distributed on the energy absorber of both sides, and energy absorber is fully to absorb impact kinetic energy with its compressive deformation and reduce maximum impact to relax the parts that impact when automobile is subject to clashing into.For improving the energy-absorbing effect of energy absorber, manufacturing enterprise is the several aspects such as mechanical property, increasing energy absorber this cun of section and improvement energy absorber planform by improving material normally.Referring to Fig. 5, this is a kind of aluminum alloy energy absorber structural representation commonly used, and its technological process is by after the direct extrusion forming of aluminium section bar, then improves mechanical property through bakingout process, finally by length and the angle excessively cut off and the corner cut operation obtains being suitable for.Its energy absorber is hexagon, and its core skeleton is also hexagon, and this structure energy-absorbing effect is better than simple hollow or day font energy absorber effect, but its planform causes its cross dimensions larger, and transmits and stressedly owe even.For the lightweight miniature car, because automobile front structure is compact, leave the limited space that energy absorber is installed for, existing energy absorber structure is difficult to reach and guarantees that namely energy-absorbing effect can adapt to the requirement of automobile installing space again, if reduce the energy absorber size, pursue simply the mechanical property that improves material, will certainly greatly increase cost of product.Therefore, improve energy absorber and structure design, make it under equal conditions possess higher energy-absorbing effect, improve simultaneously the beam structure design, make it have certain energy-absorbing effect, reducing energy absorber energy-absorbing pressure is the preferred version that addresses the above problem.
The utility model content
The utility model is used for solving the defective of above-mentioned prior art and a kind of automobile buffer beam with high energy absorption performance with crossbeam and energy absorber Double-energy-absorption effect is provided.
The alleged problem of the utility model solves by the following technical programs:
A kind of automobile buffer beam with high energy absorption performance, it comprises crossbeam, is symmetricly set on energy absorber and the adapter plate of crossbeam both sides, the energy absorber two ends contact with crossbeam with adapter plate respectively, special feature is: described crossbeam consists of a day character form structure by surrounding deckle board and intermediate transverse girder energy-absorbing guiding tendon, crossbeam integral body is arc, and on the cross-sectional plane of crossbeam, crossbeam energy-absorbing guiding tendon is arc, the crossbeam bottom surface is straight shape, and the crossbeam end face is arc.
Above-mentioned automobile buffer beam with high energy absorption performance, described energy absorber comprises that cross-sectional plane is that hexagonal energy absorber shell limit and cross-sectional plane are circular energy absorber skeleton, the energy absorber skeleton is positioned at energy absorber shell limit, above-mentioned both centres are connected by strengthening rib strip, strengthening rib strip arranges three, three strengthening rib strips are distributed between energy absorber shell limit and energy absorber skeleton, and strengthening rib strip one side is connected with the energy absorber skeleton, and the side plate middle part on opposite side and energy absorber shell limit is connected.
Above-mentioned automobile buffer beam with high energy absorption performance, the contact surface of described energy absorber and crossbeam is the inclined-plane, with the contact surface of adapter plate be the plane, the height dimension H1 of energy absorber high side is the 50-200 millimeter, the height dimension H2 of energy absorber short side is than the little 10-15 millimeter of H1; The size dimension L3 on described energy absorber shell limit is the 40-60 millimeter; The radius size R3 of described energy absorber skeleton is the 15-30 millimeter.
Above-mentioned automobile buffer beam with high energy absorption performance, the cross sectional dimensions of described crossbeam is as follows: crossbeam bottom width size L1 is the 70-120 millimeter, crossbeam side height dimension L2 is the 20-60 millimeter, the arc radius size R1 of crossbeam energy-absorbing guiding tendon is the 20-50 millimeter, and crossbeam end face arc radius size R2 is the 240-260 millimeter.
The utility model for existing automobile collision preventing girder construction be difficult to take into account lightweight miniature car narrow installation space and and guarantee the effective energy-absorbing problem of double requirements, developed a kind of automobile buffer beam with high energy absorption performance.Its design concept is: by improving the beam structure design, promote the crossbeam energy absorption performance, make collision prevention girders have crossbeam, energy absorber Double-energy-absorption effect; Improve simultaneously the energy absorber structure design, make energy absorber whole stressed even, avoid causing because local pressure is excessive the collision degeneration, the energy absorber skeleton adopts circular configuration, can better decompose power when energy absorber is stressed, and evenly transmit according to profile stressed.In addition, the whole aluminum alloy materials that adopts of this automobile buffer beam, its tensile strength is more than or equal to 215Mpa; Yield strength is more than or equal to 170Mpa; Stretch ratio by increasing product rigidity, strengthens its non-deformability more than or equal to 10%.Compare with existing collision prevention girders of the same type, the utility model is when greatly reducing oad, satisfying the compact car installing space, still can guarantee the requirement of effective energy-absorbing, high-speed crash simulation analysis result shows, this collision prevention girders is used on miniature car when standing impact force, and the cross section power of the total energy-absorbing of collision prevention girders, three directions of left and right sides energy absorber root all can reach corresponding standard and auto vendor's requirement.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is crossbeam cross-sectional structure schematic diagram;
Fig. 3 is the energy-absorption box structural representation;
Fig. 4 is the birds-eye view of Fig. 4;
Fig. 5 is Aluminium Alloys in Common Use energy absorber structural representation.
Attached number in the figure is as follows: 1. crossbeam, 1-1. crossbeam energy-absorbing guiding tendon, 1-2. crossbeam bottom surface, 1-2, crossbeam end face, 2. energy absorber, 2-1. energy absorber shell limit, 2-2. energy absorber skeleton, 2-3. strengthening rib strip, 3. adapter plate.
The specific embodiment
Referring to Fig. 1, the utility model comprises crossbeam 1, is symmetricly set on energy absorber 2 and the adapter plate 3 of crossbeam both sides, and energy absorber two ends contact with crossbeam with adapter plate respectively, its inclined-plane crossbeam 1 seam, plane and adapter plate 3 seam.
Referring to Fig. 1, Fig. 2, described crossbeam 1 consists of a day character form structure by surrounding deckle board and intermediate transverse girder energy-absorbing guiding tendon 1-1.Crossbeam integral body is arc, and on the cross-sectional plane of crossbeam, crossbeam energy-absorbing guiding tendon 1-1 is arc, and crossbeam bottom surface 1-1 is straight shape, and above crossbeam, 1-3 is arc.This structure is when automobile generation head-on crash, crossbeam utilizes crossbeam energy-absorbing guiding tendon 1-1 first to carry out conquassation, in the middle of the crossbeam cavity, shape flattens in XianCheng, thereby guiding crossbeam cavity two sides are outstanding the flattening outwards, being delivered to the energy-absorption box front cross rail by the effective absorption portion energy of ordered deformation, realize the purpose of crossbeam, energy-absorption box Double-energy-absorption.The cross sectional dimensions of crossbeam is as follows: crossbeam bottom width size L1 is the 70-120 millimeter, crossbeam side height dimension L2 is the 20-60 millimeter, the arc radius size R1 of crossbeam energy-absorbing guiding tendon is the 20-50 millimeter, and crossbeam end face arc radius size R2 is the 240-260 millimeter.
Referring to Fig. 1, Fig. 3, Fig. 4, described energy absorber 2 comprises energy absorber shell limit 2-1 and energy absorber skeleton 2-2, and energy absorber skeleton 2-2 is positioned at energy absorber shell limit, and above-mentioned have strengthening rib strip 2-3 to be connected in the middle of both.The cross-sectional plane of energy absorber shell limit 2-1 is hexagon, and this hexagonal size dimension L3 is the 40-60 millimeter; The cross-sectional plane of energy absorber skeleton 2-2 is circular, and its radius size R3 is the 15-30 millimeter; Strengthening rib strip 2-3 arranges three, and three strengthening rib strips are distributed between energy absorber shell limit and energy absorber skeleton, and strengthening rib strip one side is connected with the energy absorber skeleton, and the side plate middle part on opposite side and energy absorber shell limit is connected.The energy absorber inner skeleton adopts circular configuration, can make energy absorber when stressed, power is evenly decomposed, and according to the regular hexagon structure on three strengthening rib strips that are evenly distributed and shell limit, power is evenly transmitted, more more reasonable than other shapes aspect stressed, make energy absorber under the prerequisite of dwindling sectional dimension and lengthwise dimension, reach same energy-absorbing effect, satisfy the energy-absorbing requirement.Energy absorber 2 is the inclined-plane with the contact surface of crossbeam 1, with the contact surface of adapter plate 3 be the plane, the height dimension H1 of energy absorber 2 high sides is the 50-200 millimeter, the height dimension H2 of energy absorber short side is than the little 10-15 millimeter of H1.
When the utility model bumps when automobile, at first crossbeam produces distortion, absorb part energy, to remain again collision energy and assign to the both sides energy absorber, after the energy absorber outer hull is stressed, power is directly delivered on inner skeleton, and the circular configuration of skeleton can decompose power along its shape transmission, by reinforced rib, the power that is subject to is evenly passed to housing again simultaneously, like this, housing is stressed rear along the profile transmission, simultaneously again to the inner skeleton transmission, form outside-inside-outside stressed circulation, thereby strengthened the ability that energy absorber bears impact force.Whole automobile buffer beam is forming first crossbeam energy-absorbing, then under the double condition of energy absorber energy-absorbing, energy absorber has been strengthened again the uniform circulation energy-absorbing effect, has guaranteed the high energy absorption performance of whole automobile buffer beam.
Claims (4)
1. automobile buffer beam with high energy absorption performance, it comprises crossbeam (1), is symmetricly set on energy absorber (2) and the adapter plate (3) of crossbeam both sides, the energy absorber two ends contact with crossbeam with adapter plate respectively, it is characterized in that: described crossbeam (1) consists of a day character form structure by surrounding deckle board and intermediate transverse girder energy-absorbing guiding tendon (1-1), crossbeam integral body is arc, on the cross-sectional plane of crossbeam, crossbeam energy-absorbing guiding tendon (1-1) is arc, crossbeam bottom surface (1-1) is straight shape, and crossbeam end face (1-3) is arc.
2. the automobile buffer beam with high energy absorption performance according to claim 1, it is characterized in that: described energy absorber (2) comprises that cross-sectional plane is that hexagonal energy absorber shell limit (2-1) and cross-sectional plane are circular energy absorber skeleton (2-2), energy absorber skeleton (2-2) is positioned at energy absorber shell limit, above-mentioned both centres are connected by strengthening rib strip (2-3), strengthening rib strip (2-3) arranges three, three strengthening rib strips are distributed between energy absorber shell limit and energy absorber skeleton, strengthening rib strip one side is connected with the energy absorber skeleton, the side plate middle part on opposite side and energy absorber shell limit is connected.
3. the automobile buffer beam with high energy absorption performance according to claim 2, it is characterized in that: described energy absorber (2) is the inclined-plane with the contact surface of crossbeam (1), with the contact surface of adapter plate (3) be the plane, the height dimension H1 of the high side of energy absorber (2) is the 50-200 millimeter, and the height dimension H2 of energy absorber short side is than the little 10-15 millimeter of H1; The size dimension L3 on described energy absorber shell limit is the 40-60 millimeter; The radius size R3 of described energy absorber skeleton is the 15-30 millimeter.
4. the automobile buffer beam with high energy absorption performance according to claim 3, it is characterized in that: the cross sectional dimensions of described crossbeam is as follows: crossbeam bottom width size L1 is the 70-120 millimeter, crossbeam side height dimension L2 is the 20-60 millimeter, the arc radius size R1 of crossbeam energy-absorbing guiding tendon is the 20-50 millimeter, and crossbeam end face arc radius size R2 is the 240-260 millimeter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320244152 CN203267964U (en) | 2013-05-08 | 2013-05-08 | Automobile anti-collision beam with strong energy absorption performance |
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| CN 201320244152 CN203267964U (en) | 2013-05-08 | 2013-05-08 | Automobile anti-collision beam with strong energy absorption performance |
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| CN203267964U true CN203267964U (en) | 2013-11-06 |
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| CN 201320244152 Expired - Fee Related CN203267964U (en) | 2013-05-08 | 2013-05-08 | Automobile anti-collision beam with strong energy absorption performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600710A (en) * | 2013-11-19 | 2014-02-26 | 重庆长安汽车股份有限公司 | Aluminium-alloy front impact crossbeam |
| CN109823292A (en) * | 2019-03-07 | 2019-05-31 | 哈尔滨理工大学 | A kind of automobile collision preventing boom device |
-
2013
- 2013-05-08 CN CN 201320244152 patent/CN203267964U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600710A (en) * | 2013-11-19 | 2014-02-26 | 重庆长安汽车股份有限公司 | Aluminium-alloy front impact crossbeam |
| CN109823292A (en) * | 2019-03-07 | 2019-05-31 | 哈尔滨理工大学 | A kind of automobile collision preventing boom device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20131106 Termination date: 20210508 |