Vehicle pedestrian protection device, vehicle pedestrian protection equipment and vehicle
By setting up a movable bracket between the vehicle's bumper skin and the anti-collision beam, the bracket moves relative to each other when a pedestrian collision occurs, providing deformation space for the front bumper, solving the difficulty of existing vehicles to effectively protect pedestrian legs. The problem of this achieves effective protection of pedestrian legs.
Patent Information
- Application Number
- CN202411577335.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-02-11
AI Technical Summary
When existing vehicles collided, it is difficult to effectively protect pedestrian legs, especially calves, which caused great damage.
Design a vehicle pedestrian protection device, by providing a movable first and second brackets between the bumper skin of the vehicle and the anti-collision beam, the first bracket and the second bracket move relative to each other when a pedestrian collision occurs. , provides X-direction deformation space for the front bumper and reduces damage to pedestrian legs.
It effectively reduces the damage to pedestrian legs, especially calf, improves the pedestrian protection ability of vehicles, and reduces casualties in accidents.
Smart Images
Figure CN119408505A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of automobile structures, and in particular relates to a vehicle pedestrian protection device, a vehicle pedestrian protection equipment and a vehicle. Background Art
[0002] The necessity of vehicle and pedestrian protection is obvious. It concerns the life safety of every road user, as well as the harmony and stability of the entire society. Traffic accidents between vehicles and pedestrians often result in serious injuries or even death of pedestrians. Strengthening vehicle and pedestrian protection can reduce the incidence of such accidents, reduce casualties, and protect the lives of pedestrians.
[0003] The demand for vehicle and pedestrian protection has driven technological innovation in the automotive industry, prompting automakers to continuously develop new technologies and products to improve vehicle safety performance. Strengthening vehicle and pedestrian protection will help promote the transformation and upgrading of the automotive industry and improve the competitiveness and sustainable development capabilities of the entire industry.
[0004] In actual use, the protection of pedestrians' legs is very important. There is still room for improvement in the protection effect of pedestrians' legs in existing models that take pedestrian protection into consideration.
[0005] Therefore, it is necessary to design a vehicle pedestrian protection device, a vehicle pedestrian protection equipment and a vehicle for realizing the leg protection of pedestrians. Summary of the invention
[0006] In view of some or all of the above technical problems existing in the prior art, the present invention proposes a vehicle pedestrian protection device, a vehicle pedestrian protection equipment and a vehicle. The vehicle pedestrian protection device is arranged between the bumper skin and the anti-collision beam of the vehicle, which can effectively reduce the damage to the legs, especially the calves, of pedestrians.
[0007] According to one aspect of the present invention, there is provided a vehicle pedestrian protection device, comprising:
[0008] a first bracket, wherein the front end of the first bracket is used to be arranged on the bumper skin of the vehicle,
[0009] a second bracket, wherein the front end of the second bracket is used to be connected to the first bracket, and the rear end of the second bracket is used to be set on the anti-collision beam of the vehicle,
[0010] When the magnitude of the backward force applied to the first bracket is greater than or equal to a preset value, the first bracket and the second bracket move relative to each other.
[0011] In one embodiment, the first bracket and the second bracket are both cylindrical in structure, and the rear end of the first bracket is sleeve-connected to the front end of the second bracket.
[0012] In one embodiment, the front end of the second bracket is inserted into the inner cavity of the rear end of the first bracket, and a first buckle assembly is provided between the first bracket and the second bracket, and the first buckle assembly includes:
[0013] a buckle hole provided on the first bracket wall,
[0014] A protruding buckle is arranged on the outer wall of the second bracket, and the protruding buckle is inserted into the buckle hole in a matching manner to form a snap connection.
[0015] In one embodiment, the outer wall surface of the protruding buckle is configured as an inclined surface, and in a direction from front to back, the outer wall of the protruding buckle gradually moves away from the outer wall of the second bracket.
[0016] In one embodiment, the first bracket and the second bracket are configured as cylindrical structures with square cross-sections, and the flow areas of the first bracket and the second bracket gradually decrease from the front end to the rear end.
[0017] In one embodiment, a second buckle is provided at the rear end of the second bracket, an outer wall of the second buckle is configured with a guiding slope, and a snap-in groove is provided on the guiding slope.
[0018] In one embodiment, the second buckle is constructed as a spring clip with an open front end and a closed rear end, and a snap-in piece is respectively provided on the two spring sheets of the spring clip, the front end of the snap-in piece is fixed and the rear end is free and extends toward the middle direction of the two spring sheets, a connecting plate is fixedly provided at the rear end of the second bracket, a connecting plate is provided with a connecting hole, the spring clip is clamped to the connecting plate, and the snap-in piece is inserted into the connecting hole.
[0019] According to a second aspect of the present invention, there is provided a vehicle pedestrian protection device, comprising:
[0020] Bumper skin,
[0021] Anti-collision beam,
[0022] The above-mentioned vehicle pedestrian protection device,
[0023] Wherein, the first bracket is connected to the bumper skin, and the second bracket is connected to the anti-collision beam.
[0024] In one embodiment, a reinforcing bracket is fixed to the rear side of the bumper skin, the first bracket is integrally connected to the reinforcing bracket, a plastic energy absorbing block is provided on the front side of the anti-collision beam, and the second bracket is connected to the plastic energy absorbing block.
[0025] According to a third aspect of the present invention, there is provided a vehicle comprising the above-mentioned vehicle pedestrian protection device.
[0026] Compared with the prior art, the advantages of the present invention are that the first bracket and the second bracket of the vehicle pedestrian protection device are movably connected and arranged between the bumper skin and the anti-collision beam. During normal driving of the vehicle, the first bracket and the second bracket serve to connect the bumper skin and the anti-collision beam. If a pedestrian collision occurs, the first bracket is subjected to force, so that the first bracket and the second bracket move relative to each other, providing space for the X-direction deformation of the front bumper, reducing damage to the legs of pedestrians, especially the calves, and improving the vehicle's pedestrian protection capability. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:
[0028] Figure 1 An exploded view of a vehicle pedestrian protection device according to one embodiment of the present invention is shown;
[0029] Figure 2 shows a partially assembled view of a vehicle pedestrian protection device according to one embodiment of the present invention;
[0030] Figure 3 shows an assembly diagram of a vehicle pedestrian protection device according to one embodiment of the present invention;
[0031] Figure 4 shows a front view of a vehicle pedestrian protection device according to an embodiment of the present invention;
[0032] Figure 5 For Figure 4 AA cross-section diagram;
[0033] Figure 6 For Figure 4 BB cross-section diagram.
[0034] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION
[0035] In order to make the technical solutions and advantages of the present invention more clearly understood, the exemplary embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than an exhaustive list of all the embodiments. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.
[0036] The embodiment of the present invention provides a vehicle pedestrian protection device. Figures 1 to 6As shown, the vehicle pedestrian protection device includes a first bracket 1 and a second bracket 2. After installation, the front end of the first bracket 1 is used to be set on the front bumper skin of the vehicle. The front end of the second bracket 2 is used to be connected to the first bracket 1. The rear end of the second bracket 2 is used to be set on the anti-collision beam of the vehicle. According to the present application, when the first bracket 1 is subjected to a force in the backward direction and the magnitude of the force is greater than or equal to a preset value, the first bracket 1 and the second bracket 2 move relative to each other. That is to say, the first bracket 1 and the second bracket 2 are arranged between the bumper skin and the anti-collision beam of the vehicle. When a pedestrian collision occurs, the first bracket 1 is subjected to a force, which actuates the first bracket 1 and the second bracket 2 to move relative to each other, thereby providing space for the front bumper to deform in the X direction and reducing damage to the legs of pedestrians, especially the calves. It should be noted that the size of the preset value can be selectively set according to the actual situation of the vehicle.
[0037] In one embodiment, the first bracket 1 and the second bracket 2 are both cylindrical. The rear end of the first bracket 1 is connected to the front end of the second bracket 2 in a sleeve-type connection. That is, the axial direction of the first bracket 1 and the second bracket 2 generally extends in the front-back direction. This arrangement is simple and easy to manufacture and produce, especially the sleeve connection between the first bracket 1 and the second bracket 2, which can be conveniently guided during the relative movement of the two. This arrangement can reduce the cost of parts, reduce the complexity of assembly, shorten the dimension chain, and reduce the matching risk.
[0038] The front end of the second bracket 2 is inserted into the inner cavity of the rear end of the first bracket 1. A first buckle assembly is arranged between the first bracket 1 and the second bracket 2. Specifically, the first buckle assembly includes a buckle hole 11 and a protruding buckle 23. The buckle hole 11 is arranged on the wall of the first bracket 1. The protruding buckle 23 is arranged on the outer wall of the second bracket 2, which is a convex structure. After the second bracket 2 is inserted into the first bracket 1 in place, the protruding buckle 23 is matched and inserted into the buckle hole 11 to form a snap connection. On the one hand, this arrangement can ensure the effective connection and fixation of the first bracket 1 and the second bracket 2, and provide sufficient Z-direction support for the front bumper during normal vehicle manufacturing and driving, and improve the mode of the front bumper. On the other hand, if a pedestrian collision occurs, the first buckle assembly is unlocked by snap connection, which can ensure that the first bracket 1 and the second bracket 2 can move relative to each other, provide space for the X-direction deformation of the front bumper, reduce the damage value to the pedestrian's calf, and improve the pedestrian protection capability of the vehicle. Preferably, the outer wall of the protruding buckle 23 is configured as an inclined surface, and in the direction from front to back, the outer wall of the protruding buckle 23 gradually moves away from the outer wall of the second bracket 2. After the first bracket 1 is subjected to the force in the X direction, the inclined surface guides the first bracket 1 to move backward. It can be seen that the clamping of the above-mentioned first buckle assembly is easy to be unlocked, which can ensure that the first bracket 1 can move relative to the second bracket 2, thereby protecting the safety of pedestrians.
[0039] The first bracket 1 and the second bracket 2 are constructed as cylindrical structures with square cross-sections. This arrangement is not only simple in structure and low in manufacturing cost, but also convenient for installation, especially during the relative movement of the first bracket 1 and the second bracket 2, which facilitates guidance. In the direction from the front end to the rear end, the flow area of the first bracket 1 and the second bracket 2 gradually decreases, which is used to reduce the complexity of assembly, shorten the dimension chain, and reduce the matching risk.
[0040] A second buckle 3 is provided at the rear end of the second bracket 2. The outer wall of the second buckle 3 is configured with a guide slope 31. A clamping groove 32 is provided on the guide slope 31. The second buckle 3 is used to connect the second bracket 2 to other components, such as the plastic energy absorbing block 4. The specific connection method is described in detail later.
[0041] The second clip 3 is constructed as a spring clip with an open front end and a closed rear end. A snap-on piece 34 is respectively provided on the two springs 33 of the spring clip. The front end of the snap-on piece 34 is fixed, while the rear end is a free end and extends toward the middle direction of the two springs 33. At the same time, a connecting plate 21 is fixedly provided at the rear end of the second bracket 2. A connecting hole 22 is provided on the connecting plate 21. The spring clip is clamped to the connecting plate 21, and the snap-on piece 34 is inserted into the connecting hole 22. The second clip 3 can be easily snapped onto the second bracket 2. The second clip 3 can play the role of connecting the second bracket 2 and the plastic energy absorbing block 4.
[0042] The present application also includes a vehicle pedestrian protection device. The vehicle pedestrian protection device includes a bumper skin, an anti-collision beam, and the above-mentioned vehicle pedestrian protection device. The first bracket 1 is connected to the bumper skin, and the second bracket 2 is connected to the anti-collision beam. That is to say, a first bracket 1 and a second bracket 2 are arranged between the bumper skin and the anti-collision beam. The first bracket 1 and the second bracket 2 are clamped together by a first buckle assembly. During normal vehicle manufacturing and driving, the first bracket 1 and the second bracket 2 are clamped together to ensure a stable connection between the two, so as to provide sufficient Z-direction support for the bumper; if a pedestrian collision occurs, the first buckle assembly is unlocked under the action of the impact, and the first bracket 1 and the second bracket 2 move relative to each other under the action of force, thereby providing space for the X-direction deformation of the front bumper, thereby reducing the damage to the pedestrian's calf.
[0043] In one embodiment, a reinforcing bracket 5 is fixed to the rear side of the bumper skin. The first bracket 1 is integrally connected to the reinforcing bracket 5. For example, the first bracket 1 and the reinforcing bracket 5 are made of thermoplastic polyolefin, specifically, PP+EPDM material. This arrangement can make good use of the advantages of thermoplastic polyolefin materials, having sufficient rigidity to provide Z-direction support, while having the toughness of rubber to avoid breakage during low-speed collisions and reduce maintenance costs. The first bracket 1 and the reinforcing bracket 5 can be integrally injection molded. A plastic energy absorbing block 4 is provided on the front side of the anti-collision beam. The second bracket 2 is connected to the plastic energy absorbing block 4. More specifically, a connector 41 is provided on the plastic energy absorbing block 4. The connector 41 itself can be constructed as a flat plate facing forward. Of course, in order to increase strength, structures such as vertical plates or reinforcing ribs can also be provided on the flat connector 41. A snap-on hole 42 is provided on the connector 41. During the connection process, the second clip 3 is inserted into the snap hole 42 under the guidance of the guide slope 31. After being installed in place, the wall of the snap hole 42 is snapped into the snap groove 32, so that the second clip 3 and the plastic energy absorbing block 4 are snapped. It can be seen that the second bracket 2 and the plastic energy absorbing block 4 can be connected together through the second clip 3, achieving the support function in the Z direction. The wall thickness of the first bracket 1 and the second bracket 2 can be about 2.0 mm.
[0044] In another embodiment, for some models, the rear side of the front bumper does not necessarily need to be provided with a reinforcing bracket 5. Then the first bracket 1 can be fixed to, for example, a skin grille bracket of the vehicle. The specific connection method is foreseeable by those skilled in the art and will not be described in detail. This arrangement can also transmit the collision force of the front bumper to the first bracket 1, causing the first bracket 1 to move backward, thereby reducing pedestrian damage.
[0045] The present application also relates to a vehicle, wherein the vehicle comprises the above-mentioned vehicle pedestrian protection device.
[0046] In the present application, the X direction of the vehicle refers to the length direction of the vehicle, that is, the front-to-back direction; the Y direction represents the width direction of the vehicle, that is, the left-to-right direction; and the Z direction is the vertical direction of the vehicle, that is, the up-down direction.
[0047] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and / or modifications that fall within the scope of the present invention, and changes and / or modifications made according to the embodiments of the present invention should be included within the scope of protection of the present invention.
Claims
1. A vehicle pedestrian protection device, characterized in that: include: a first bracket, wherein the front end of the first bracket is used to be arranged on the bumper skin of the vehicle, a second bracket, wherein the front end of the second bracket is used to be connected to the first bracket, and the rear end of the second bracket is used to be set on the anti-collision beam of the vehicle, When the value of the backward force applied to the first bracket is greater than or equal to a preset value, the first bracket and the second bracket move relative to each other.
2. The vehicle pedestrian protection device according to claim 1, characterized in that: The first bracket and the second bracket are both cylindrical in structure, and the rear end of the first bracket is sleeve-connected to the front end of the second bracket.
3. The vehicle pedestrian protection device according to claim 2, characterized in that: The front end of the second bracket is inserted into the inner cavity of the rear end of the first bracket, and a first buckle assembly is arranged between the first bracket and the second bracket, and the first buckle assembly includes: a buckle hole provided on the first bracket wall, A protruding buckle is arranged on the outer wall of the second bracket, and the protruding buckle is inserted into the buckle hole in a matching manner to form a snap connection.
4. The vehicle pedestrian protection device according to claim 3, characterized in that: The outer wall surface of the protruding buckle is configured as an inclined surface, and in a direction from front to rear, the outer wall of the protruding buckle gradually moves away from the outer wall of the second bracket.
5. The vehicle pedestrian protection device according to claim 4, characterized in that: The first bracket and the second bracket are constructed as cylindrical structures with square cross-sections. In the direction from the front end to the rear end, the flow areas of the first bracket and the second bracket gradually decrease.
6. The vehicle pedestrian protection device according to any one of claims 1 to 5, characterized in that: A second buckle is arranged at the rear end of the second bracket, an outer wall of the second buckle is configured with a guiding slope, and a clamping groove is arranged on the guiding slope.
7. The vehicle pedestrian protection device according to claim 6, characterized in that: The second buckle is constructed as a spring clip with an open front end and a closed rear end. A snap-fitting piece is respectively provided on the two springs of the spring clip. The front end of the snap-fitting piece is fixed while the rear end is free and extends toward the middle of the two springs. A connecting plate is fixedly provided at the rear end of the second bracket. A connecting hole is provided on the connecting plate. The spring clip is clamped on the connecting plate, and the snap-fitting piece is inserted into the connecting hole.
8. A vehicle pedestrian protection device, characterized in that: include: Bumper skin, Anti-collision beam, The vehicle pedestrian protection device according to any one of claims 1 to 8, Wherein, the first bracket is connected to the bumper skin, and the second bracket is connected to the anti-collision beam.
9. The vehicle pedestrian protection device according to claim 8, characterized in that: A reinforcing bracket is fixed on the rear side of the bumper skin, the first bracket is integrally connected to the reinforcing bracket, a plastic energy absorbing block is arranged on the front side of the anti-collision beam, and the second bracket is connected to the plastic energy absorbing block.
10. A vehicle, characterized in that: Comprising the vehicle pedestrian protection device according to claim 8 or 9.