CN217917871U - Protection device for improving collision and suction performance of head of pedestrian on automobile - Google Patents
Protection device for improving collision and suction performance of head of pedestrian on automobile Download PDFInfo
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- CN217917871U CN217917871U CN202221224713.2U CN202221224713U CN217917871U CN 217917871 U CN217917871 U CN 217917871U CN 202221224713 U CN202221224713 U CN 202221224713U CN 217917871 U CN217917871 U CN 217917871U
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Abstract
The utility model relates to an automobile protection device, in particular to a protection device for improving the collision and absorption performance of the head of an automobile pedestrian, which is arranged at the front end of an automobile body and comprises a bumper skin, an engine cover which is fixed on the automobile body and is in clearance fit with the bumper skin, an automobile body support piece which is arranged at the inner side of the bumper skin and is in clearance fit with the engine cover, a bumper energy absorption support which is arranged at the inner side of the bumper skin, a bumper reinforcing support and a bumper support; the upper end of the bumper energy absorption bracket is respectively fixedly connected with the bumper skin and the vehicle body supporting piece, and the lower end of the bumper energy absorption bracket is fixedly connected with the bumper supporting bracket; the bumper supporting bracket is fixed on the vehicle body supporting piece; the bumper reinforcing bracket is fixedly arranged on the inner wall of the bumper skin, and the upper end of the bumper reinforcing bracket is fixedly connected with the bumper energy-absorbing bracket. Compared with the prior art, the utility model discloses effectively realize the direction absorbed energy impact force to impact force energy transfer, and then reduce the head injury to the pedestrian.
Description
Technical Field
The utility model relates to an automobile protection device, concretely relates to promote protection device that car pedestrian's head bumped and inhales performance.
Background
The design of the collision energy absorption area is that the vehicle body deforms gradually when collision occurs so as to absorb most of collision energy generated in the accident, and after the vehicle body is changed into the design capable of deforming, the strong collision force born by pedestrians can be greatly reduced.
The concept of the collision energy-absorbing area is firstly proposed in the 60 th of the 20 th century, the collision energy-absorbing area is required to be designed into an outer soft and inner rigid structure, namely, the junction of the collision energy-absorbing area and a passenger safety area is designed into a structure with higher rigidity, and the periphery of the collision energy-absorbing area is designed into a structure with lower rigidity and better collision energy-absorbing performance.
Due to the structural characteristics of the automobile, the lateral and upper collision resistance of the buffering energy absorption area is poor, and the front collision resistance and the rear collision resistance are relatively good.
At present, a PC-PBT \ POM material is adopted by an energy-absorbing mounting bracket, and the energy-absorbing mounting bracket and a bumper skin are assembled and connected in the vertical direction; releasing all the space in the front-back direction; however, the qualified rate of the matching size of the bumper and the engine cover of the actual finished automobile is poor, and the finished automobile and the pedestrian are only controlled by high-cost electronic components after collision (the engine cover is bounced up, so that the head of the pedestrian is directly lifted upwards); at the same time, the opening device may occasionally be affected by electronic interference, and the energy cannot be absorbed in the direction towards the underside of the ground. Due to the existence of many problems, the safety performance still needs to be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving at least one of the above-mentioned problem and providing a promote protection device that car pedestrian head bumped and inhales performance, when effectively realizing whole car and colliding with the pedestrian in driving process (or the stop state), the head contact position is realized absorbing the energy impact force to the direction of impact force energy transfer through differentiation wall thickness structure and the formula of collapsing (like multiple C type, encircle energy absorption's equivalent structure such as door type, pagoda type) structure, and then reduces the head injury to the pedestrian.
The purpose of the utility model is realized through the following technical scheme:
a protection device for improving the head collision and absorption performance of an automobile pedestrian is arranged at the front end of an automobile body and comprises a bumper skin, an engine cover fixed on the automobile body and in clearance fit with the bumper skin, an automobile body supporting piece arranged on the inner side of the bumper skin and in clearance fit with the engine cover, a bumper energy absorption support arranged on the inner side of the bumper skin, a bumper reinforcing support and a bumper supporting support;
the upper end of the bumper energy-absorbing bracket is respectively fixedly connected with the bumper skin and the vehicle body supporting piece, and the lower end of the bumper energy-absorbing bracket is fixedly connected with the bumper supporting bracket;
the bumper supporting bracket is fixed on the vehicle body supporting piece;
the bumper reinforcing support is fixedly arranged on the inner wall of the bumper skin, and the upper end of the bumper reinforcing support is fixedly connected with the bumper energy-absorbing support.
Preferably, the bumper energy-absorbing bracket is fixedly connected with the bumper supporting bracket through a collapsing structure.
Preferably, the bumper energy-absorbing bracket is of a multiple C-shaped structure, an arch-shaped structure or a pagoda-shaped structure.
Preferably, the bumper energy-absorbing bracket is of a double C-shaped structure.
Preferably, the bumper energy-absorbing bracket is of a differential wall thickness structure.
Preferably, the bumper energy absorption bracket is fixedly connected with the bumper skin through clamping, welding or bonding.
Preferably, the bumper energy-absorbing bracket is fixedly connected with the bumper skin through a fastener.
Preferably, the bumper support bracket is fixedly connected with the vehicle body supporting member by bolts.
Preferably, the bumper energy absorption bracket and the bumper reinforcing bracket are fixedly connected through clamping, welding or bonding.
Preferably, the bumper energy absorption bracket and the bumper reinforcing bracket are fixedly connected through a fastener.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model relates to a promote protection device that car pedestrian head bumped energy-absorbing performance, can with low costs and realize effectively that whole car is when bumping with the pedestrian in the course of going (or the stop state), head contact position realizes the direction absorbed energy impact force to impact force energy transfer through differentiation wall thickness structure and the formula of collapsing (like multiple C type, arch door type, tower type etc. energy absorption's equivalent structure) structure, and then reduces the head injury to the pedestrian.
2. The steady "triangle-shaped" that bumper energy-absorbing support "multiple C type" structural feature was established can establish and prevent upset structural feature and support the characteristic arrangement method, guarantees whole car pedestrian protection head regulation performance advantage, effectively promotes bumper assembly and bonnet size matching qualification rate simultaneously, therefore passes through the utility model discloses an use not only can improve collision energy-absorbing performance, can also improve the yield of product.
3. When the head of a pedestrian collides and contacts with the whole vehicle, the energy can be absorbed by 25-30% through the multiple C-shaped structure and the differentiated wall thickness structure of the bumper energy-absorbing bracket; after the energy is continuously transmitted to the position marked by the bumper supporting bracket Q, the energy is continuously absorbed through the collapsing type structure; when the instantaneous impact force of the head of the pedestrian reaches the critical value of the fracture stress of the energy-absorbing bracket material, the crumple structure fractures; finally, the damage severity of the impact force to the pedestrian protection is reduced.
Drawings
Fig. 1 is a schematic front view of the protection device of the present invention;
fig. 2 is a schematic side view of the protection device of the present invention;
fig. 3 is a schematic rear view of the protection device of the present invention;
fig. 4 is an exploded view of the protection device of the present invention;
FIG. 5 is a schematic structural view of a bumper energy-absorbing bracket;
FIG. 6 is an enlarged, fragmentary, schematic structural view of an energy-absorbing bumper bracket;
FIG. 7 is a schematic view of a bumper support bracket;
FIG. 8 is an enlarged partial schematic view of the bumper support bracket;
FIG. 9 is a side view schematic of a bumper energy-absorbing bracket;
FIG. 10 is a schematic partial cross-sectional view of a bumper skin and bumper energy-absorbing bracket connection;
FIG. 11 is a schematic, partially broken-away view of a bumper energy-absorbing bracket and body support connection;
fig. 12 is an assembly structure diagram of the protection device of the present invention;
in the figure: 1-bumper skin; 2-a hood; 3-a body support; 4-a bumper energy-absorbing bracket; 5-a bumper reinforcement bracket; 6-bumper support bracket; 7-bolt.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example 1
A protection device for improving the head collision and suction performance of an automobile pedestrian is arranged at the front end of an automobile body, and comprises a bumper skin 1, an engine cover 2 fixed on the automobile body and in clearance fit with the bumper skin 1, an automobile body support 3 arranged on the inner side of the bumper skin 1 and in clearance fit with the engine cover 2, a bumper energy absorption support 4 arranged on the inner side of the bumper skin 1, a bumper reinforcing support 5 and a bumper support 6, wherein the bumper energy absorption support is arranged on the inner side of the bumper skin 1;
the upper end of the bumper energy-absorbing bracket 4 is respectively fixedly connected with the bumper skin 1 and the vehicle body supporting piece 3, and the lower end of the bumper energy-absorbing bracket is fixedly connected with the bumper supporting bracket 6;
the bumper support bracket 6 is fixed to the vehicle body support member 3;
the bumper reinforcing bracket 5 is fixedly arranged on the inner wall of the bumper skin 1, and the upper end of the bumper reinforcing bracket is fixedly connected with the bumper energy-absorbing bracket 4.
More specifically, in the present embodiment:
the bumper is characterized by integrally consisting of a bumper energy-absorbing bracket 4, a bumper reinforcing bracket 5 and a bumper supporting bracket 6 which are arranged inside a bumper skin 1 and a hood 2 (the bumper skin 1 and the hood 2 are respectively fastened and connected with a vehicle body through conventional fasteners, and the bumper skin 1 and the hood 2 are arranged in a clearance fit manner as shown in figures 9-12), wherein the bumper supporting bracket 6 is fixed on a vehicle body supporting member 3 through a plurality of pairs of bolts 7 arranged up and down, and the structure of the bumper supporting bracket is shown in figure 7; the bumper support bracket 6 is fixedly connected with a bumper energy absorption bracket 4 which is a main part for absorbing energy, as shown in fig. 5, the bumper support bracket 6 and the bumper support bracket 6 are fixed by a collapse type structure as shown in fig. 6 and 8, and when the impact exceeds the stress, the bumper support bracket 6 and the bumper support bracket 6 can be broken to absorb the impact force. The energy-absorbing bumper bracket 4 has a double C-shaped structure, as shown in FIG. 9, the upper part of the energy-absorbing bumper bracket is fastened and connected with the end of the bumper skin 1 by a buckle, and after two 180-degree turns (i.e., two C-shaped) the bottom of the energy-absorbing bumper bracket is fixed with the bumper support bracket 6 by a collapse-type structure. As shown in fig. 11, a slightly thicker wall surface is arranged at the position where the bumper skin 1 is clamped with the bumper skin, so that the whole body has a structure with a differentiated wall thickness, and the energy absorption effect is further improved; close to its snap-fit with the bumper skin 1, it is also fixed to the body support 3 by means of bolts 7. A bumper reinforcing bracket 5 is fixedly arranged on the inner side wall of the bumper skin 1, and the upper end of the bumper reinforcing bracket is fixedly connected with a bumper energy-absorbing bracket 4 through a buckle in a fastening manner, so that all parts of the whole protection device are connected with each other to realize integral stability and fixation.
When the head of a pedestrian collides and contacts with the whole vehicle, the energy is absorbed by 25-30% through the multiple C-shaped structure and the differentiated wall thickness structure of the bumper energy-absorbing bracket 4; after the energy continues to be transmitted to the location of the bumper support bracket 6 identified as "Q" (fig. 12), the energy can be continuously absorbed by the crush structure (the connecting portion of the energy absorbing bumper bracket 4 and the bumper support bracket 6); when the instantaneous impact force of the head of the pedestrian reaches the breaking stress critical value of the material of the bumper energy-absorbing bracket 4, the crumple structure breaks, and finally the damage severity of the impact force to the pedestrian protection is reduced. Furthermore, due to the structural characteristics of multiple C-shaped structures of the bumper energy-absorbing support 4 and the constructed stable characteristics of triangular shapes, the overturning supporting arrangement design under the influence of gravity is realized, and the qualified rate of the bumper assembly matched with the size of the engine cover 2 is effectively improved.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should understand that all the improvements and modifications made without departing from the scope of the present invention according to the disclosure of the present invention should be within the protection scope of the present invention.
Claims (10)
1. A protection device for improving the head collision and suction performance of an automobile pedestrian is arranged at the front end of an automobile body and comprises a bumper skin (1), an engine cover (2) which is fixed on the automobile body and is in clearance fit with the bumper skin (1), and an automobile body support piece (3) which is arranged on the inner side of the bumper skin (1) and is in clearance fit with the engine cover (2), and is characterized by also comprising a bumper energy absorption support (4), a bumper reinforcing support (5) and a bumper support (6) which are arranged on the inner side of the bumper skin (1);
the upper end of the bumper energy-absorbing bracket (4) is respectively fixedly connected with the bumper skin (1) and the vehicle body supporting piece (3), and the lower end of the bumper energy-absorbing bracket is fixedly connected with the bumper supporting bracket (6);
the bumper supporting bracket (6) is fixed on the vehicle body supporting piece (3);
the bumper reinforcing bracket (5) is fixedly arranged on the inner wall of the bumper skin (1), and the upper end of the bumper reinforcing bracket is fixedly connected with the bumper energy-absorbing bracket (4).
2. The protection device for improving the head crash and suction performance of the pedestrian according to claim 1, wherein the energy absorption bracket (4) and the bumper support bracket (6) are fixedly connected through a collapsible structure.
3. The protection device for improving the head crash and suction performance of the pedestrian according to claim 2, wherein the bumper energy-absorbing bracket (4) is of a multi-C-shaped structure, an arch-shaped structure or a pagoda-shaped structure.
4. The protection device for improving the impact and suction performance of the pedestrian head of an automobile according to claim 3, wherein the energy-absorbing bumper bracket (4) is of a double C-shaped structure.
5. The protection device for improving the impact and suction performance of the head of an automobile pedestrian according to claim 1, wherein the energy-absorbing bumper bracket (4) is of a differential wall thickness structure.
6. The protection device for improving the impact and suction performance of the head of an automobile pedestrian according to claim 1, characterized in that the bumper energy-absorbing bracket (4) is fixedly connected with the bumper skin (1) through clamping, welding or bonding.
7. The protection device for improving the head crash and suction performance of the pedestrian of the automobile according to claim 1, wherein the energy-absorbing bumper bracket (4) is fixedly connected with the bumper skin (1) through a fastener.
8. The protection device for improving the head crash and suction performance of the pedestrian of the automobile as claimed in claim 1, wherein the bumper support bracket (6) is fixedly connected with the body support member (3) by a bolt (7).
9. The protection device for improving the head collision and absorption performance of the pedestrian in the automobile according to claim 1, wherein the bumper energy absorption bracket (4) is fixedly connected with the bumper reinforcing bracket (5) through clamping, welding or bonding.
10. The protection device for improving the impact and suction performance of the pedestrian head of an automobile according to claim 1, wherein the energy-absorbing bumper bracket (4) is fixedly connected with the reinforcing bumper bracket (5) through a fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221224713.2U CN217917871U (en) | 2022-05-19 | 2022-05-19 | Protection device for improving collision and suction performance of head of pedestrian on automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221224713.2U CN217917871U (en) | 2022-05-19 | 2022-05-19 | Protection device for improving collision and suction performance of head of pedestrian on automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217917871U true CN217917871U (en) | 2022-11-29 |
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ID=84177295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221224713.2U Active CN217917871U (en) | 2022-05-19 | 2022-05-19 | Protection device for improving collision and suction performance of head of pedestrian on automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217917871U (en) |
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2022
- 2022-05-19 CN CN202221224713.2U patent/CN217917871U/en active Active
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