CN111516628A - Integrated pedestrian protection structure - Google Patents
Integrated pedestrian protection structure Download PDFInfo
- Publication number
- CN111516628A CN111516628A CN202010334431.7A CN202010334431A CN111516628A CN 111516628 A CN111516628 A CN 111516628A CN 202010334431 A CN202010334431 A CN 202010334431A CN 111516628 A CN111516628 A CN 111516628A
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- China
- Prior art keywords
- energy
- shank
- bumper skin
- integrated
- collision
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- 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
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- 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
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- 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
- B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to an integrated pedestrian protection structure. The structure comprises a bumper skin, an energy absorption block and an anti-collision beam, wherein the bumper skin is arranged on a vehicle body, and a lower end of the bumper skin is integrated with a shank supporting cross beam; two ends of the shank supporting beam are fixedly connected with an upper anti-collision beam through side supporting brackets, and the energy absorption block is fixedly arranged on the anti-collision beam; when a pedestrian collides with the front end of the vehicle, the upper part of the shank of the pedestrian is contacted with the middle part of the bumper skin, the energy is transmitted to the energy-absorbing block, and the energy-absorbing block deforms to absorb the energy and then transmits the impact to the anti-collision beam; the lower part of the shank of the pedestrian is in contact with the lower part of the bumper skin, the shank supporting cross beam integrated on the lower part of the bumper skin absorbs collision energy, and the energy is transmitted to the anti-collision beam through the side supporting bracket. The invention not only realizes light weight, but also can effectively absorb the impact energy of the lower part of the leg of the pedestrian.
Description
Technical Field
The invention relates to the technical field of automobile pedestrian protection, in particular to an integrated pedestrian protection structure.
Background
Pedestrian protection is more and more widely regarded, and the technology thereof is rapidly developed in recent years. Regulations and NCAP are constantly being updated and the demand is becoming higher and higher. With the wide research investment, new structures and new technologies are emerging continuously. In the conventional pedestrian protection technology, the lower leg support structure is generally transmitted to a vehicle body through a metal water tank lower cross beam, or the lower leg support structure is designed to be a sheet metal part welded to a front anti-collision beam. In the former scheme, the water tank frame is designed to be a sheet metal part, so that the whole weight is heavier; in addition, in order to effectively support the shank support framework, the structure at the lower cross beam of the water tank also needs to be designed to be stronger or a bracket needs to be designed independently for supporting; in the latter scheme, the lower part supporting structure of the lower leg is designed to be a sheet metal part, so that the light weight is not high, and the structural design and arrangement also have more limit on the shape.
Disclosure of Invention
In order to solve the above problems, the present invention provides an integrated pedestrian protection structure that not only realizes light weight, but also can effectively absorb impact energy of the lower part of the leg of a pedestrian.
The technical scheme adopted by the invention is as follows: the utility model provides an integrated form pedestrian protection structure, includes bumper skin, energy-absorbing piece and crashproof roof beam, its characterized in that: the bumper skin is arranged on the vehicle body, and the lower end of the bumper skin is integrated with a shank supporting cross beam; two ends of the shank supporting beam are fixedly connected with an upper anti-collision beam through side supporting brackets, and the energy absorption block is fixedly arranged on the anti-collision beam;
when a pedestrian collides with the front end of the vehicle, the upper part of the shank of the pedestrian is contacted with the middle part of the bumper skin, the energy is transmitted to the energy-absorbing block, and the energy-absorbing block deforms to absorb the energy and then transmits the impact to the anti-collision beam; the lower part of the shank of the pedestrian is in contact with the lower part of the bumper skin, the shank supporting cross beam integrated on the lower part of the bumper skin absorbs collision energy, and the energy is transmitted to the anti-collision beam through the side supporting bracket. The bumper skin integrates a shank supporting beam, and the collision energy at the lower part of the shank is transmitted to the side supporting bracket through the shank supporting beam and then transmitted to the vehicle body through the front anti-collision beam; the collision energy at the upper part of the shank is transmitted to the anti-collision beam through the energy absorption block and then transmitted to the longitudinal beam. The shank supporting cross beam and the bumper skin are directly integrated, so that the number of parts is reduced. The lower leg supporting cross beam integrated at the lower end of the bumper skin, the side supporting bracket welded on the anti-collision beam, the energy absorption block and the anti-collision beam form an integrated pedestrian protection structure.
Preferably, the side support bracket, the energy absorption block and the impact beam are wrapped inside the front bumper skin.
Preferably, the lower leg supporting cross beam is of a U-shaped groove structure with a backward opening, and transverse and vertical reinforcing ribs are arranged inside the U-shaped groove structure.
Preferably, bosses are arranged at two ends of the shank supporting beam, and clamping holes matched with the buckles are formed in the bosses; the shank supporting beam is connected with the side supporting brackets through bosses at two ends, and plays roles of supporting the lower part of the shank and absorbing energy in pedestrian collision.
Furthermore, the upper end of the side support bracket is welded on the anti-collision beam, and the lower end of the side support bracket is connected with bosses at two ends of the shank support beam through buckles.
Preferably, the lower end of the bumper skin is clamped with a lower skirt, and the lower skirt covers the lower leg supporting cross beam inside.
Preferably, the anti-collision beam is connected to the longitudinal beam through bolts, side support brackets are welded to two ends of the anti-collision beam, and the energy absorption blocks are clamped in mounting holes in the anti-collision beam.
The beneficial effects obtained by the invention are as follows: directly integrating the shank supporting cross beam on the bumper skin, and transmitting the collision energy at the lower part of the shank to the side supporting bracket through the shank supporting cross beam and then to the vehicle body through the front anti-collision beam; the collision energy at the upper part of the shank is transmitted to the anti-collision beam through the energy absorption block and then transmitted to the longitudinal beam, so that the weight of the front end of the vehicle is effectively reduced, and the number of parts is reduced; meanwhile, the mode of the whole front end is promoted, and the promotion of NVH is facilitated. And because the shank supporting cross beam integrated at the lower part of the bumper skin is positioned in the lower skirt edge, the energy absorption characteristic of the shank supporting cross beam can be easily close to that of the energy absorption block by optimizing the shank supporting cross beam, and the pedestrian protection performance is favorably improved. The invention not only realizes light weight, but also can effectively absorb the impact energy of the lower part of the leg of the pedestrian.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a rear view of FIG. 1;
FIG. 4 is a front view of a bumper skin;
FIG. 5 is a rear view of the bumper skin;
FIG. 6 is an illustration of the mating configuration of the bumper skin, lower skirt and side support brackets;
reference numerals: 1. a front bumper skin; 1.1, a shank supporting beam; 1.2, transverse and vertical reinforcing ribs; 1.3, a boss; 2. a lower skirt edge; 3. an energy absorbing block; 4. a side support bracket; 5. an anti-collision beam; 6. a stringer; 7. and (5) buckling.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments.
As shown in fig. 1-6, the integrated pedestrian protection structure of the invention comprises a bumper skin 1, an energy absorption block 3 and an anti-collision beam 5, wherein the bumper skin 1 is mounted on a vehicle body, and a lower end is integrated with a lower leg supporting cross beam 1.1; two ends of a shank supporting beam 1.1 are fixedly connected with an anti-collision beam 5 on the upper part through side supporting brackets 4, and an energy absorption block 3 is fixedly arranged on the anti-collision beam 5.
Absorb shank upper portion collision energy by energy-absorbing piece 3, absorb shank lower part collision energy's structure together by collateral branch supporting bracket 4 on bumper skin 1 integrated shank supporting beam 1.1 and the anticollision roof beam 5, including the cladding at collateral branch supporting bracket 4, bumper skin 1 outside energy-absorbing piece 3 and the anticollision roof beam 5, it has integrateed shank supporting beam 1.1, 2 joints of lower skirt limit are in bumper skin 1 lower part, collateral branch supporting bracket 4 welds on anticollision roof beam 5, it is connected through buckle 7 with integrated shank supporting beam 1.1 on bumper skin 1, 3 joints of energy-absorbing piece are on anticollision roof beam 5.
Bumper covering 1 installs on the automobile body, with side support bracket 4, energy-absorbing piece 3 and crashproof roof beam 5 cladding in inside, its lower extreme has integrateed shank supporting beam 1.1, and shank supporting beam 1.1 is the U type groove structure of opening backward, and U type inslot portion has set up violently and has erected strengthening rib 1.2, and shank supporting beam 1.1 both ends have set up boss 1.3, have the joint hole of buckle 7 on the boss 1.3. The shank supporting beam 1.1 is connected with the side supporting brackets 4 through bosses 1.3 at two ends, and plays roles of supporting the lower part of the shank and absorbing energy in pedestrian collision. The lower end of the bumper skin 1 is clamped with a lower skirt edge 2.
The lower skirt edge 2 is clamped at the lower part of the bumper skin 1 and covers a lower leg supporting beam 1.1 integrated at the lower part of the bumper skin 1.
The side support bracket 4 is welded on the anti-collision beam 5, and the lower end of the side support bracket is connected with bosses 1.3 at two ends of a lower leg support beam 1.1 integrated at the lower part of the bumper skin 1 through buckles 7.
The energy absorption block 3 is coated inside the bumper skin 1 and is connected to the anti-collision beam 5 in a clamping mode through a boss.
The principle of the embodiment is illustrated as follows: when a pedestrian collides with the front end of the vehicle, the upper part of the shank of the pedestrian is contacted with the middle part of the bumper skin 1, the energy is transmitted to the energy-absorbing block 3, and the energy-absorbing block 3 deforms to absorb the energy and then transmits the impact to the anti-collision beam 5. The lower part of the lower leg of the pedestrian is in contact with the lower part of the bumper skin 1, and the lower leg supporting cross beam 1.1 integrated on the lower part of the bumper skin 1 absorbs the collision energy and transmits the energy to the side supporting brackets 4, and then the energy is transmitted to the anti-collision beam 5 through the side supporting brackets 4.
The invention adopts the bumper skin 1 structure integrated with the lower leg supporting beam 1.1, avoids designing a separate bracket structure, reduces the number of parts and effectively reduces the weight of the front end of the vehicle.
According to the invention, the lower leg supporting cross beam 1.1 is integrated on the bumper skin 1, the structure is simple, the design optimization is easy to carry out, and the adaptability to modeling is better.
According to the invention, the lower leg supporting cross beam 1.1 integrated at the lower end of the bumper skin 1 is connected with the side supporting bracket 4 welded on the anti-collision beam 5, so that stronger support is provided for the lower end of the bumper skin 1, and the reliable durability of the bumper is improved.
The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an integrated form pedestrian protection structure, includes bumper skin (1), energy-absorbing piece (3) and anticollision roof beam (5), its characterized in that: the bumper skin (1) is arranged on the vehicle body, and the lower end of the bumper skin is integrated with a lower leg supporting beam (1.1); two ends of the shank supporting beam (1.1) are fixedly connected with an anti-collision beam (5) at the upper part through side supporting brackets (4), and the energy absorption block (3) is fixedly arranged on the anti-collision beam (5);
when a pedestrian collides with the front end of the vehicle, the upper part of the shank of the pedestrian is contacted with the middle part of the bumper skin (1), energy is transmitted to the energy-absorbing block (3), and the energy-absorbing block (3) deforms to absorb the energy and then transmits the impact to the anti-collision beam (5); the lower part of the shank of the pedestrian is in contact with the lower part of the bumper skin (1), the shank supporting cross beam (1.1) integrated on the lower part of the bumper skin (1) absorbs collision energy, and the energy is transmitted to the anti-collision beam (5) through the side supporting bracket (4).
2. The integrated pedestrian protection structure of claim 1, wherein: the side supporting bracket (4), the energy absorption block (3) and the anti-collision beam (5) are coated inside the front bumper skin (1).
3. The integrated pedestrian protection structure of claim 1, wherein: the shank supporting cross beam (1.1) is of a U-shaped groove structure with a backward opening, and transverse and vertical reinforcing ribs (1.2) are arranged inside the U-shaped groove structure.
4. The integrated pedestrian protection structure of claim 1, wherein: bosses (1.3) are arranged at two ends of the shank supporting beam (1.1), and clamping holes matched with the buckles (7) are formed in the bosses (1.3); the shank support beam (1.1) is connected with the side support brackets (4) through bosses (1.3) at two ends, and plays roles of supporting the lower part of the shank and absorbing energy in pedestrian collision.
5. The integrated pedestrian protection structure of claim 4, wherein: the upper end of the side support bracket (4) is welded on the anti-collision beam (5), and the lower end of the side support bracket is connected with the bosses (1.3) at the two ends of the shank support beam (1.1) through buckles (7).
6. The integrated pedestrian protection structure of claim 1, wherein: the lower end of the bumper skin (1) is clamped with a lower skirt edge (2), and the lower skirt edge (2) covers the shank supporting cross beam (1.1) inside.
7. The integrated pedestrian protection structure of claim 1, wherein: anticollision roof beam (5) pass through bolted connection on longeron (6), and both ends welding has collateral branch brace (4), energy-absorbing piece (3) joint is in the mounting hole on anticollision roof beam (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334431.7A CN111516628A (en) | 2020-04-24 | 2020-04-24 | Integrated pedestrian protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334431.7A CN111516628A (en) | 2020-04-24 | 2020-04-24 | Integrated pedestrian protection structure |
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| Publication Number | Publication Date |
|---|---|
| CN111516628A true CN111516628A (en) | 2020-08-11 |
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ID=71903681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010334431.7A Pending CN111516628A (en) | 2020-04-24 | 2020-04-24 | Integrated pedestrian protection structure |
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| Country | Link |
|---|---|
| CN (1) | CN111516628A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112373424A (en) * | 2020-11-17 | 2021-02-19 | 奇瑞汽车股份有限公司 | Front protection supporting device |
| CN113635851A (en) * | 2021-08-02 | 2021-11-12 | 长安马自达汽车有限公司 | Novel modified bumper lower skirt |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014111401A (en) * | 2012-12-05 | 2014-06-19 | Mazda Motor Corp | Leg sweeping structure for vehicle |
| CN205365520U (en) * | 2015-12-28 | 2016-07-06 | 浙江吉利汽车研究院有限公司 | Reduce buffer structure of pedestrian's shank injury |
| CN205769163U (en) * | 2016-05-27 | 2016-12-07 | 浙江吉利控股集团有限公司 | A kind of pedestrian crus protection device for automobiles |
| DE102016102534A1 (en) * | 2016-02-15 | 2017-08-17 | Audi Ag | Bumper system for a motor vehicle |
| CN207790611U (en) * | 2018-01-12 | 2018-08-31 | 广州汽车集团股份有限公司 | Automotive front end structure |
| CN208881746U (en) * | 2018-09-18 | 2019-05-21 | 北京新能源汽车股份有限公司 | Collision and pedestrian protection system assembly and automobile |
| CN110606044A (en) * | 2019-09-30 | 2019-12-24 | 东风汽车集团有限公司 | Front-end integrated pedestrian protection leg type protection structure |
-
2020
- 2020-04-24 CN CN202010334431.7A patent/CN111516628A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014111401A (en) * | 2012-12-05 | 2014-06-19 | Mazda Motor Corp | Leg sweeping structure for vehicle |
| CN205365520U (en) * | 2015-12-28 | 2016-07-06 | 浙江吉利汽车研究院有限公司 | Reduce buffer structure of pedestrian's shank injury |
| DE102016102534A1 (en) * | 2016-02-15 | 2017-08-17 | Audi Ag | Bumper system for a motor vehicle |
| CN205769163U (en) * | 2016-05-27 | 2016-12-07 | 浙江吉利控股集团有限公司 | A kind of pedestrian crus protection device for automobiles |
| CN207790611U (en) * | 2018-01-12 | 2018-08-31 | 广州汽车集团股份有限公司 | Automotive front end structure |
| CN208881746U (en) * | 2018-09-18 | 2019-05-21 | 北京新能源汽车股份有限公司 | Collision and pedestrian protection system assembly and automobile |
| CN110606044A (en) * | 2019-09-30 | 2019-12-24 | 东风汽车集团有限公司 | Front-end integrated pedestrian protection leg type protection structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112373424A (en) * | 2020-11-17 | 2021-02-19 | 奇瑞汽车股份有限公司 | Front protection supporting device |
| CN113635851A (en) * | 2021-08-02 | 2021-11-12 | 长安马自达汽车有限公司 | Novel modified bumper lower skirt |
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Application publication date: 20200811 |