WO2014202007A1 - 一种汽车的吸能装置 - Google Patents
一种汽车的吸能装置 Download PDFInfo
- Publication number
- WO2014202007A1 WO2014202007A1 PCT/CN2014/080240 CN2014080240W WO2014202007A1 WO 2014202007 A1 WO2014202007 A1 WO 2014202007A1 CN 2014080240 W CN2014080240 W CN 2014080240W WO 2014202007 A1 WO2014202007 A1 WO 2014202007A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- energy absorbing
- box
- absorbing box
- energy
- vehicle according
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/03—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
Definitions
- the present invention relates to automotive components, and more particularly to an energy absorbing device for an automobile.
- the existing automobile anti-collision energy absorbing device is mainly designed for this.
- people are no longer limited to protecting the safety of occupants in the car, but to protect pedestrians who collide with cars.
- a car collides with a pedestrian it is usually the body directly contacts the pedestrian's leg, causing damage to the pedestrian's leg.
- the existing car anti-collision energy-absorbing device designed for the safety of the occupant is difficult to meet the national standard GB/T 24550- 2009 requirements.
- the present invention aims to provide an energy absorbing device for an automobile, which can reduce the damage to the pedestrian's lower leg and reduce the damage of the low-speed collision to the automobile, thereby satisfying relevant regulations. Claim.
- the energy absorbing device for an automobile comprises a main energy absorbing box and a sub absorbing box, wherein the main energy absorbing box has a u-shaped cross section and has a U-shaped bottom of the energy absorbing box and an energy absorbing box U-shaped extending therefrom a wall, the secondary energy absorbing box being nested inside the main energy absorbing box.
- the present invention enables the secondary energy absorbing box to provide continuous rigidity to the pedestrian's lower leg protection and reduce the injury to the pedestrian's leg when the main energy absorbing box is close to crushing during the collision between the automobile and the pedestrian.
- the energy absorbing device of the automobile of the invention can meet the requirements of GB/T 24550-2009 and GB 17354 at the same time, can reduce the damage to the pedestrian's lower leg, and can reduce the low speed collision pair. Car damage.
- the energy absorbing device further includes a bumper system having a front impact beam that overlaps the front impact beam by more than 80%.
- the amount of nesting of the secondary energy absorbing box is less than 10% of the depth of the primary energy absorbing box.
- the energy absorbing device further includes a skin
- the auxiliary energy absorbing box is integrated in the embodiment
- the energy absorbing device further includes a lower grid and an upper grid
- the main An energy absorbing box is fixedly coupled to the lower grid and the upper grid.
- the main energy absorbing box has a U-shaped upper end snap structure of the energy absorbing box, and the upper grille has an upper grill mounting suction function matched with the upper end snap structure of the energy absorbing box u-shaped port.
- the energy absorbing box has a U-shaped lower end buckle structure of the energy absorbing box, and the lower grille has a lower grille installed energy absorbing box structure matched with the lower end snap structure of the energy absorbing box U-shaped port .
- the primary energy absorbing box is injection molded from a modified material of polypropylene, ethylene propylene diene monomer, and 10% talc.
- the rib structure is evenly distributed in the main energy absorbing box corresponding to the U-shaped bottom of the energy absorbing box.
- the rib structure has a height of 10 mm and a wall thickness of 2.5 mm.
- the U-shaped wall of the energy absorbing box has a dome-shaped outer surface, including an energy absorbing box boss and an energy absorbing box recess in a staggered arrangement.
- the width of the suction box boss is 40 mm, and the width of the suction box recess is
- the height difference between the two is 5mm.
- the middle portion of the U-shaped wall of the energy absorbing box has a U-shaped wall bending point of the energy absorbing box.
- the U-shaped wall of the energy absorbing box has a bending angle of 4 degrees at a bending point of the U-shaped wall of the energy absorbing box.
- the main energy absorbing box has an energy absorbing box U-shaped opening, and the main energy absorbing box is provided with at least one energy absorbing box hinge at the U-shaped opening of the energy absorbing box.
- the bottom of the secondary energy absorbing box has a sub-bottle bottom boss structure that exhibits different height and lower drop.
- a sub-suction box back is provided in the center of the bottom boss structure of the sub-suction box. Face opening structure.
- the back opening structure of the auxiliary energy absorbing box is a square hole of 40 mm x l5 mm.
- the energy absorbing device includes a bumper system having a front impact beam, the front impact beam including a cross member that is designed to conform to the U-bottom of the energy absorbing box.
- the gap between the beam and the U-shaped bottom of the energy absorbing box is 8 mm.
- the invention also relates to a vehicle comprising an energy absorbing device for a motor vehicle as described above.
- FIG. 1 is a schematic exploded view showing an overall structure of an energy absorbing device of a motor vehicle according to the present invention
- FIG. 2 is a schematic cross-sectional view showing an entire structure of an energy absorbing device of a motor vehicle according to the present invention
- FIG. 4 is a schematic view showing the structure of the front side of the main energy absorbing box of the energy absorbing device of the automobile according to the present invention
- FIG. 5 is a schematic diagram of the energy absorbing device of the automobile according to the present invention.
- Figure 6 is a front elevational view showing the sub-suction box of the energy absorbing device of the automobile according to the present invention
- Figure 7 is a longitudinal sectional view of the sub-suction box of the energy absorbing device of the automobile according to the present invention taken along line BB of Figure 6;
- Figure 8 is a perspective view showing the structure of a front impact beam of an energy absorbing device for an automobile according to the present invention. among them:
- An energy absorbing device for a motor vehicle includes a bumper system, a main energy absorbing box 2 and a sub absorbing box 5, wherein the bumper system has a front impact beam 1, a skin 3, a lower grill 4, and an upper grill 6.
- the positional relationship between the components is as shown in FIG. 1 and FIG. 2, and the main energy absorbing box 2 is fixedly connected to the lower grille 4 and the upper grille 6 and is disposed corresponding to the front anti-collision beam 1, and the sub-suction box 5 is provided. It is integrated on the skin 3 and nested inside the main energy absorbing box 2.
- the present invention does not adjust the specific mounting position and the like, and therefore will not be described herein.
- the specific structure added to the above components or the structure different from the prior art will be described in detail below.
- the specific structure of the main energy absorbing box 2 of the energy absorbing device of the automobile according to the present invention can be seen as shown in Figs. 3 to 5, showing a thin-walled member extending in the lateral direction (the width direction of the vehicle), which is in the longitudinal direction ( The car advance direction is shown as a U-shaped cross section, and the U-shaped opening 29 faces the front of the car.
- the main energy absorbing box 2 is shown in Fig. 2 as being mounted between the peripheral automobile part 7 of the bumper system and the front impact beam 1 for absorbing kinetic energy due to collision, in which kinetic energy is converted into deformation work. , thereby avoiding permanent damage to the front impact beam when the critical load is exceeded.
- the dimension in the lateral direction is referred to as the width
- the dimension in the longitudinal direction is referred to as the depth
- the dimension in the vertical direction is referred to as the height.
- the primary energy absorbing box 2 has a width of about 1000 mm and a depth of about 75 mm.
- the main energy absorbing box 2 includes an energy absorbing box U-shaped bottom 24 and an energy absorbing box U-shaped wall 25 extending longitudinally from the U-shaped bottom 24. Referring to FIG.
- the end of the U-shaped wall 25 of the energy absorbing box respectively has a U-shaped lower end snap structure 26 and an energy absorbing box U-shaped upper end snap structure 27 for respectively respectively, and the lower and upper grilles 4 6 is connected, in this embodiment, the upper grill 6 has an upper grille mounted energy absorbing box structure 61 for mating with the U-shaped upper end snap structure 27 of the energy absorbing box; the lower grill 4 has a lower grille The energy absorbing box structure 41 is mounted for mating with the U-shaped lower end snap structure 26 of the energy absorbing box.
- the main energy absorbing box 2 is made of a plastic material, preferably PP+EPDM+T10 (polypropylene, ternary The modified material of ethylene propylene rubber and 10% talc is injection molded and has a wall thickness of 2.5mm-3mm.
- the main energy absorbing box 2 is uniformly distributed with a rib structure corresponding to the U-shaped bottom 24 of the energy absorbing box.
- the rib structure has a height of about 10 mm and a wall thickness of about 2.5 mm.
- the U-shaped wall 25 of the energy absorbing box has a dome-shaped outer surface of a Great Wall structure, and includes an energy absorbing box boss 22a and an energy absorbing box recess 22b which are sequentially arranged alternately. Referring to FIG.
- the strength of the main energy absorbing box 2 is improved.
- the main energy absorbing box 2 is prevented from being quickly collapsed during the collision.
- the width of the energy absorbing box boss 22a is 40 mm
- the width of the energy absorbing box recess 22b is 70 mm
- the height difference between the two is 5 mm, thereby ensuring
- the U-shaped wall 25 of the energy absorbing box has a desired strength.
- the U-shaped wall 25 of the energy absorbing box has a U-shaped wall bending point 28 of the energy absorbing box, so that the U-shaped bottom of the energy absorbing box is gradually gathered, which facilitates the deformation of the U-shaped wall 25 of the energy absorbing box.
- the bending angle is about 4 degrees.
- the height of the U-shaped opening 29 of the energy absorbing box is about 60 mm and the height of the U-shaped bottom 24 of the energy absorbing box is about 35 mm.
- At least one energy absorbing box hinge 21 is disposed at the U-shaped opening 29 of the energy absorbing box to prevent the main energy absorbing box 2 from being oversized during the crushing process and losing excessive rigidity; in addition, the energy absorbing box hinge 21 can also be The shape of the main energy absorbing box 2 is kept stable before being installed, and the opening and closing of the hinge structure facilitates mounting on the bumper system.
- the energy absorbing box hinge 21 has a width of about 25 mm and a number of three.
- At least one energy absorbing box mounting structure 23 is also provided at the U-shaped opening 29 of the energy absorbing box for engaging with the bumper system.
- the auxiliary energy absorbing box 5 of the energy absorbing device of the automobile according to the present invention is integrated on the skin 3 and nested inside the main energy absorbing box 2.
- the specific structure of the auxiliary energy absorbing box 5 can be seen in Figs. 6 and 7. Also shown is a lateral extension.
- the bottom of the sub-portable box 5 has a sub-sucking box bottom boss structure 52 exhibiting different height and lower drop, thereby ensuring that the sub-suction box 5 has suitable strength.
- a sub-suction box back opening structure 51 is provided at the center of the bottom boss structure 52 of the sub-suction box.
- the rear opening structure 51 of the sub-energy box can not only reduce the weight of the skin 3 but also reduce the strength of the sub-energy box 5 in the event of a collision.
- the sub-portable box 5 has a depth of 30 mm and a height of 30 mm to ensure that the U-shaped bottom 24 of the energy absorbing box is accessible during deformation.
- the sub-suction box back opening structure 51 is a 40 mm x l5 mm square hole.
- the secondary energy absorbing box 5 is in the middle of the main energy absorbing box 2, and the nesting amount is less than 10% of the depth of the energy absorbing box, that is, the U-shaped bottom of the secondary energy absorbing box 5 and the main energy absorbing box 2. The distance between them is greater than 90% of the depth of the main energy absorbing box 2.
- the specific structure of the front impact beam 1 of the energy absorbing device of the automobile according to the present invention can be seen as shown in Fig. 8, and is shown to include a laterally extending beam 11 and two end fixing structures 12.
- the beam 11 is an arc structure, and the outer arc surface of the beam 11 is attached to the U-shaped bottom 24 of the energy absorbing box.
- the two end fixing structures 12 are fixed to the bumper system by fasteners such as screws.
- the main energy absorbing box 2 and the front guard The impact beam 1 has an overlap of more than 80%, because the main energy absorbing box 2 needs the front anti-collision beam 2 to provide a reverse supporting force when the collapsed wrinkles occur, if the main energy absorbing box 2 and the front impact beam 1 If slip occurs, it will not provide effective support, so both need sufficient overlap.
- the U-shaped bottom 24 of the energy absorbing box and the beam 11 have an overlap of more than 80%.
- the gap between the U-shaped bottom 24 of the energy absorbing box and the beam 11 is preferably 8 mm.
- the energy absorbing device of the automobile enables the secondary energy absorbing box 5 to provide continuous rigidity to the pedestrian's lower leg protection and reduce the injury to the pedestrian's leg when the primary energy absorbing box 2 approaches crushing during the collision of the automobile with the pedestrian.
- the pedestrian collides with the peripheral automobile part 7, so that the main energy absorbing box 2 collides with the beam 11 of the front impact beam 1, and the main energy absorbing box 2 is subjected to the action of the beam 11 and collapses toward the U-shaped opening 29. Shrink, thereby absorbing collision energy.
- the energy absorbing box U-shaped bottom 24 collides with the auxiliary energy absorbing box 5, and the auxiliary energy absorbing box 5 collapses, thereby absorbing the collision energy.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14812932.3A EP3012160B1 (en) | 2013-06-18 | 2014-06-18 | Energy-absorption device of automobile |
US14/898,845 US9878687B2 (en) | 2013-06-18 | 2014-06-18 | Vehicle energy absorbing device |
KR1020167001029A KR20170027690A (ko) | 2013-06-18 | 2014-06-18 | 차량 에너지 흡수 장치 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310241902.X | 2013-06-18 | ||
CN201310241902.XA CN103287381B (zh) | 2013-06-18 | 2013-06-18 | 一种汽车的吸能装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014202007A1 true WO2014202007A1 (zh) | 2014-12-24 |
Family
ID=49089077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/080240 WO2014202007A1 (zh) | 2013-06-18 | 2014-06-18 | 一种汽车的吸能装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9878687B2 (zh) |
EP (1) | EP3012160B1 (zh) |
KR (1) | KR20170027690A (zh) |
CN (1) | CN103287381B (zh) |
WO (1) | WO2014202007A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110696759A (zh) * | 2019-10-29 | 2020-01-17 | 华侨大学 | 一种梯度汽车吸能盒 |
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CN103287381B (zh) | 2013-06-18 | 2016-01-20 | 延锋彼欧汽车外饰系统有限公司 | 一种汽车的吸能装置 |
CN103587486A (zh) * | 2013-11-01 | 2014-02-19 | 安徽工贸职业技术学院 | 一种汽车防撞缓冲装置 |
CA2974670A1 (en) * | 2016-07-28 | 2018-01-28 | Tiercon Corp. | Automotive vehicle bumper assembly |
US9932004B1 (en) | 2017-03-02 | 2018-04-03 | Honda Motor Co., Ltd. | Vehicle energy absorption system |
JP6972908B2 (ja) * | 2017-10-23 | 2021-11-24 | 三菱自動車工業株式会社 | フロントバンパ構造 |
CN108482491B (zh) * | 2018-05-31 | 2024-03-26 | 东风彼欧(成都)汽车外饰系统有限公司 | 一种柔性腿型碰撞的三段式前端结构 |
CN109229039A (zh) * | 2018-08-20 | 2019-01-18 | 武汉燎原模塑有限公司 | 一种汽车的吸能装置 |
CN109050456B (zh) * | 2018-09-25 | 2024-02-02 | 延锋彼欧(沈阳)汽车外饰系统有限公司 | 一种前保险杠总成的吸能支架系统及其安装总成 |
JP6778287B2 (ja) * | 2019-02-15 | 2020-10-28 | 本田技研工業株式会社 | エネルギ吸収構造 |
WO2020173113A1 (en) * | 2019-02-28 | 2020-09-03 | Yanfeng Plastic Omnium Automotive Exterior Systems Co., Ltd. | M-shaped crash box structure for an automobile front end and assembly thereof |
CN112339690B (zh) * | 2020-11-05 | 2022-08-02 | 江苏永成汽车零部件股份有限公司 | 一种具有保护功能的自损式汽车保险杠 |
CN113479141A (zh) * | 2021-07-21 | 2021-10-08 | 东风延锋汽车饰件系统有限公司 | 汽车内饰件副仪表板吸能结构 |
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CN110696759A (zh) * | 2019-10-29 | 2020-01-17 | 华侨大学 | 一种梯度汽车吸能盒 |
Also Published As
Publication number | Publication date |
---|---|
KR20170027690A (ko) | 2017-03-10 |
CN103287381B (zh) | 2016-01-20 |
EP3012160B1 (en) | 2020-11-04 |
US9878687B2 (en) | 2018-01-30 |
EP3012160A1 (en) | 2016-04-27 |
US20160137158A1 (en) | 2016-05-19 |
EP3012160A4 (en) | 2017-02-15 |
CN103287381A (zh) | 2013-09-11 |
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