CN213473039U - Front collision protection device and vehicle with same - Google Patents

Abstract

The application discloses protection device and have its vehicle bumps in front, bump protector in front includes: a front bumper; the front anti-collision beam is positioned behind the front bumper and connected with the front bumper, and a crumpling energy-absorbing structure is arranged between the front anti-collision beam and the front bumper; a bonnet assembly positioned above the front bumper, the bonnet assembly comprising: the front end of the cabin cover is provided with a guide flange extending downwards in a downward inclining mode. From this, through set up the direction turn-ups on the cabin cover subassembly, be provided with the energy-absorbing structure that contracts of bursting on the front bumper, can avoid front bumper and cabin cover to invade the pedestrian's health effectively to improve the vehicle and to pedestrian's protective properties, improve driving safety nature effectively.

Description

Front collision protection device and vehicle with same

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a bump protection device and have its vehicle before relating to.

Background

In recent years, the vehicle preservation quantity is greatly improved, the driving environment is increasingly complex, the pedestrian collision accident percentage in the Chinese road traffic accident is up to 82%, the vehicle-pedestrian collision accident can cause serious injury to the legs of pedestrians, and the leg protection performance of vehicles and pedestrians is also increasingly paid more attention. Pedestrian protection regulations have already been implemented in japan, europe, and the like, and corresponding standards have been published in China and will be fully implemented in 2024. Therefore, the research of pedestrian leg protection structures based on vehicles is significant.

Pedestrian protection devices, including front impact beam bumper blocks, front bumper cushion foam, and the like, are typically added to the front end front bumper of the vehicle. However, in some specific vehicle models, it is difficult to effectively protect the lower legs, knees and thighs of the pedestrian at the same time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a before bump protection device, before bump protection device more abundant to pedestrian's protection, can improve driving safety.

The utility model discloses a vehicle of bumping protection device before adopting above-mentioned is further provided.

According to the utility model discloses a bump protector before for vehicle of first aspect embodiment includes: a front bumper; the front anti-collision beam is positioned behind the front bumper and connected with the front bumper, and a crumpling energy-absorbing structure is arranged between the front anti-collision beam and the front bumper; a bonnet assembly positioned above the front bumper, the bonnet assembly comprising: the front end of the cabin cover is provided with a guide flange extending downwards in a downward inclining mode.

According to the front collision protection device provided by the embodiment of the application, the guide flanging is arranged on the engine room cover assembly, the front bumper is provided with the crumpling energy absorption structure, the front bumper and the engine room cover can be effectively prevented from invading the body of a pedestrian, the protection performance of a vehicle on the pedestrian is improved, and the driving safety is effectively improved.

According to some embodiments of the utility model, preceding crashproof roof beam includes: main crashproof roof beam and vice crashproof roof beam that sets up relatively in the upper and lower direction, main crashproof roof beam with the well middle-section portion of front bumper is connected, vice crashproof roof beam with the lower section portion of front bumper is relative and the interval sets up in the front and back direction, the energy-absorbing structure that contracts bursts includes: the energy-absorbing structure comprises a first crumpling energy-absorbing structure arranged on the main anti-collision beam and a second crumpling energy-absorbing structure arranged on the auxiliary anti-collision beam.

In some embodiments, the first crush-energy absorbing structure is configured as a mounting bracket to which a mid-section of the front bumper is connected by a leg.

Further, the mounting bracket includes: vertical board and horizontal board, the one end of vertical board with main anticollision roof beam is connected, the other end of vertical board is kept away from main anticollision roof beam sets up, the one end of horizontal board with the other end of vertical board is connected, the other end of horizontal board extend forward and with the stabilizer blade is fixed.

Further, the other end of the vertical plate portion is spaced from the upper surface of the main impact beam by not less than 20 mm.

In some embodiments, the horizontal plate portion is provided with a crush slot, and the leg is connected to the horizontal plate portion at a front end of the crush slot.

According to some embodiments of the utility model, the energy-absorbing structure that contracts is constructed for the energy-absorbing piece to the second, the energy-absorbing piece sets up vice crashproof roof beam orientation one side of the hypomere portion of front bumper.

Furthermore, the energy absorption blocks are substantially C-shaped, one end with an open opening is connected with the auxiliary anti-collision beam, the energy absorption blocks are arranged on the auxiliary anti-collision beam at intervals, and the extension lengths of the energy absorption blocks are different.

According to some embodiments of the invention, the nacelle cover comprises: the lock catch mounting plate is provided with a mounting boss, a plurality of reinforcing ribs and a plurality of lightening holes, wherein the reinforcing ribs and the lightening holes are located on two sides of the mounting boss, and the lock catch is mounted on the mounting boss.

According to the utility model discloses vehicle of second aspect embodiment includes: the head-on crash protection device described in the above embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a frontal crash protection device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a main impact beam of a front impact protection device in cooperation with a center section of a front bumper in accordance with an embodiment of the present invention;

FIG. 3 is another schematic view of a main impact beam of a front impact protection device in cooperation with a center section of a front bumper in accordance with an embodiment of the present invention;

fig. 4 is a schematic view of a secondary impact beam of a front impact protection device according to an embodiment of the present invention engaged with a lower section of a front bumper;

FIG. 5 is a schematic cross-sectional view of line A-A of FIG. 4;

FIG. 6 is a schematic view of a bonnet assembly of a frontal crash protection device according to an embodiment of the present disclosure;

fig. 7 is a schematic view of a striker mounting plate of a nacelle cover assembly of a frontal crash protection device according to an embodiment of the present invention.

Reference numerals:

the front impact protection device 100 is provided with a front impact protection device,

the length of the front bumper 10, the legs 11,

the nacelle cover assembly 20, the locker 21, the locker-mounting plate 22, the lightening holes 221, the reinforcing ribs 222, the mounting bosses 223, the guide flanges 224,

the main impact beam 30 is provided with,

a mounting bracket 40, a vertical plate portion 41, a horizontal plate portion 42,

energy absorption block 50, secondary impact beam 60.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A front impact protection apparatus 100 and a vehicle according to an embodiment of the present invention will be described below with reference to fig. 1 to 7.

As shown in fig. 1, a front collision prevention device for a vehicle according to an embodiment of the first aspect of the present invention includes: a front bumper 10, a front impact beam, and a bonnet assembly 20.

Wherein, the front anti-collision beam is located the front bumper 10 rear and is connected with front bumper 10, is provided with the energy-absorbing structure that contracts bursts between front anti-collision beam and the front bumper 10 to when the vehicle collides, when the pedestrian bumps into front bumper 10, front bumper 10 transmits the impact backward to the energy-absorbing structure that contracts bursts, and the energy-absorbing structure that contracts bursts absorbs the impact and produces and warp or remove the connection, in order to prevent that front bumper 10 from invading pedestrian's shank, reduce pedestrian's damage when colliding.

Further, a nacelle cover assembly 20 is located above the front bumper 10, the nacelle cover assembly 20 including: the front end of the cabin cover is provided with a guide flange 224 (shown in fig. 6 and 7) extending downwards, so that when a pedestrian collides with the vehicle, the thigh part of the pedestrian can generate a turning force under the action of the guide flange 224 at the front end of the cabin cover, the leg part is further far away from the front bumper 10, and the pedestrian has a movement tendency of lying on the cabin cover so as to further reduce the injury of the vehicle to the pedestrian during collision.

It can be understood that the front bumper 10 generally corresponds to the knee joint to shank region of the pedestrian, and the bonnet assembly 20 corresponds to the thigh region of the pedestrian, so that the protection performance of the vehicle to the pedestrian can be effectively improved, the driving safety can be improved, and meanwhile, the embodiment of the application is particularly suitable for the compact SUV based on the vehicle height reason.

According to the front impact protection device 100 of the embodiment of the application, the guide flange 224 is arranged on the cabin cover assembly 20, and the front bumper 10 is provided with the crumple energy absorption structure, so that the front bumper 10 and the cabin cover can be effectively prevented from invading the body of a pedestrian, the protection performance of the vehicle on the pedestrian is improved, and the driving safety is effectively improved.

In the specific embodiment shown in fig. 1, according to some embodiments of the present invention, the front impact beam comprises: main crashproof roof beam 30 and vice crashproof roof beam 60 that sets up relatively on the upper and lower direction, main crashproof roof beam 30 is connected with the well middle-section portion of front bumper 10, and vice crashproof roof beam 60 sets up with the lower section portion of front bumper 10 is relative and interval in the front and back direction, and the energy-absorbing structure that contracts bursts includes: a first crush energy-absorbing structure disposed on the primary impact beam 30 and a second crush energy-absorbing structure disposed on the secondary impact beam 60.

Specifically, the middle section of the front bumper is right opposite to the knee joint of the pedestrian, the lower section of the front bumper 10 is right opposite to the shank of the pedestrian, and then the first crumpling energy absorption structure right opposite to the knee joint and the second crumpling energy absorption structure right opposite to the shank are arranged, so that when a vehicle collides with the pedestrian, the knee joint of the pedestrian is prevented from being seriously damaged through the first crumpling energy absorption structure, the shank of the pedestrian is prevented from being drawn into the bottom of the front bumper 10 through the second crumpling energy absorption structure, and the working stability and the pedestrian protection capability of the front collision protection device 100 are effectively improved.

As shown in fig. 3 and 4, in some embodiments, the first crush-energy absorbing structure is configured as a mounting bracket 40, and the middle section of the front bumper 10 is connected to the mounting bracket 40 by a leg 11. That is, the leg 11 is provided at the middle section of the front bumper 10, and the middle section of the front bumper 10 is fixed to the main impact beam 30 by the connection of the leg 11 to the mounting bracket 40, thereby improving the fixing stability of the front bumper 10 to the main impact beam 30.

Further, the mounting bracket 40 includes: vertical plate portion (41 and horizontal plate portion 42), vertical plate portion (41 one end is connected with main crashproof roof beam 30, and vertical plate portion (41 the other end sets up far away from main crashproof roof beam 30, and horizontal plate portion 42 one end is connected with vertical plate portion (41 the other end, and the other end of horizontal plate portion 42 extends forward and is fixed with stabilizer blade 11.

Specifically, a buckle or a claw matched with the support leg 11 is arranged on the horizontal plate portion 42, and the support leg 11 is matched with the buckle or the claw in a clamping manner so as to fix the front bumper 10 and the anti-collision beam, and the assembly between the front bumper 10 and the anti-collision beam is simpler and more convenient.

In the specific embodiment shown in fig. 4, the horizontal plate portion 42 is provided with a crush slot, and the leg 11 is connected to the horizontal plate portion 42 at the front end of the crush slot. That is, the buckle or the claw is provided at the front end of the crush slot, and when the vehicle collides, the buckle or the claw is structurally disabled on the horizontal plate portion 42 to release the connection between the middle section of the front bumper 10 and the main impact beam 30, and to prevent the impact beam having high strength from supporting the front bumper 10 at the rear side, so as to prevent the front bumper 10 from intruding toward the knee joint of the pedestrian, thereby effectively reducing the damage to the knee joint of the pedestrian.

Further, the distance between the other end of the vertical plate portion (41) and the upper surface of the main impact beam 30 is not less than 20mm, so that after the middle section of the front bumper 10 is disconnected from the mounting bracket 40, the installation of the front bumper is facilitated while the crumpling energy-absorbing effect can be ensured.

Preferably, the crush can is configured in a structural shape as shown in fig. 3, and during a collision, when the leg of a pedestrian intrudes into the front end of the vehicle in the collision is small, the leg 11 is firstly subjected to local cracking and bending deformation to become a knee first-level protection mechanism; as the amount of the leg intrusion increases, the buckles or the claws on the horizontal plate part 42 are bent and deformed along the leg intrusion direction, and the leg 11 is completely separated from the deformed mounting bracket 40 after absorbing part of the collision energy, so that the knee second-level protection is completed; when the leg invasion amount is large, the mounting bracket 40 is used as an energy absorption structure to begin to bend along the induction groove to deform and absorb energy, so that the knee invasion speed is reduced, and the knee is promoted to rebound to form a third-level structure for protecting the knee. With the tertiary protection, the pedestrian knee injury in an accident is significantly reduced, while the risk of thigh and calf fractures can be reduced.

As shown in fig. 4, the second crush energy absorption structure is configured as an energy absorption block 50, and the energy absorption block 50 is provided on a side of the sub impact beam 60 toward the lower section portion of the front bumper 10.

Specifically, energy absorbing block 50 can be any of three materials, sheet metal, plastic, and foam. The metal sheet is stable in deformation and good in energy absorption effect, and is more adopted when the arrangement space is sufficient; the energy absorption block 50 with a complex structure can be formed by plastic, the cost is low, the weight is small, the light weight of the vehicle is facilitated, and the energy absorption block 50 is usually made of the material when the arrangement space is complex; the foam material does not need to consider the problems of material failure, formability and strength, has the advantage of small limitation on space size, and can be selected as the energy absorption block 50 in a narrow area of the arrangement space.

The energy absorption block 50 is fixed on the auxiliary anti-collision beam 60 through welding or clamping according to the design characteristics of a vehicle model and is used for reinforcing the support of the lower section part of the front bumper 10 on the lower leg, preventing the lower leg of a pedestrian from being involved in the bottom of the vehicle, enabling the part to start to deform during severe impact, absorbing impact energy and buffering the impact force applied to the lower leg, fully protecting the lower leg of the pedestrian, and avoiding serious damage such as fracture.

In the specific embodiment shown in fig. 5, the energy-absorbing block 50 is substantially C-shaped, and one end having an open mouth is connected to the secondary impact beam 60, the energy-absorbing block 50 is provided in plurality, and the energy-absorbing blocks 50 are spaced apart from each other on the secondary impact beam 60 and extend in different lengths.

Specifically, the "C" shaped energy absorbing block 50 is easy to form and ensures stable deformation without occupying leg deformation space after complete collapse. Since the stiffness requirements of the energy absorbing block 50 are different in different regions, the length of the energy absorbing block 50 is usually adjusted by changing, as shown in fig. 4, the energy absorbing block 50 needs to be longer in the region of strong support, and vice versa shorter. The surface of the energy absorption block 50 is provided with a plurality of weight reduction areas, so that the legs of pedestrians are protected, excessive weight is not increased, the rigidity of the energy absorption block 50 can be locally adjusted through the layout and the size of the weight reduction areas, and the supporting and energy absorption functions are exerted to the maximum extent.

As shown in fig. 6 and 7, according to some embodiments of the present invention, a nacelle cover includes: the lock catch mounting plate 22 and the lock catch 21 are arranged, the lock catch mounting plate 22 is provided with a mounting boss 223, a plurality of reinforcing ribs 222 and a plurality of lightening holes 221, the reinforcing ribs are located on two sides of the mounting boss 223, and the lock catch 21 is mounted on the mounting boss 223.

The hasp mounting panel 22 adopts the novel structure of a plurality of strengthening ribs 222 and installation boss 223, and installation boss 223 can provide good contact surface for hasp 21, prevents that hasp 21 is fixed unstable, and installation boss 223 edge arranges many strengthening ribs 222 and can effectively improve hasp 21 installation area's intensity, utilizes the small-size sheet metal of this kind of structure can satisfy hasp 21 installation intensity requirement. Meanwhile, a plurality of lightening holes 221 are formed in the edge area of the lock catch mounting plate 22, so that the light weight degree of the engine compartment cover is improved while the strength is ensured.

As shown in fig. 7, by adding the guide flange 224 to the front edge of the latch mounting plate 22, in order to prevent the noise caused by the relative motion with the outer plate of the nacelle cover, two expansion glue grooves are added on the guide flange 224, and the expansion glue in the glue grooves tightly bonds the guide flange 224 with the outer plate of the nacelle cover, so that the rigidity of the front edge of the nacelle cover is obviously improved.

When a vehicle collides with a pedestrian, the guide flanging 224 just inclines the thigh and the upper body of the pedestrian, the front edge of the cabin cover can effectively support the upper part of the thigh and the upper body of the pedestrian under the conditions of not improving the height of the cabin cover and not increasing the number of parts, the bending angle of the thigh part is obviously reduced, and the injury to the thigh part of the pedestrian is reduced.

According to the utility model discloses vehicle of second aspect embodiment includes: the front impact protection device 100 in the above embodiment.

According to the vehicle of the embodiment of the present application, the front impact protection device 100 of the above embodiment has the same technical effect as the front impact protection device 100, and the details are not repeated herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A front impact protection device for a vehicle, comprising:

a front bumper (10);

the front anti-collision beam is positioned behind the front bumper (10) and connected with the front bumper (10), and a crumpling energy-absorbing structure is arranged between the front anti-collision beam and the front bumper (10);

a bonnet assembly (20), the bonnet assembly (20) being located above the front bumper (10), the bonnet assembly (20) comprising: a cabin cross beam and a cabin cover which is selectively locked on the lock catch (21), wherein the front end of the cabin cover is provided with a guide flange (224) extending downwards.

2. The front impact protection device (100) for a vehicle according to claim 1, wherein said front impact beam includes: main crashproof roof beam (30) and vice crashproof roof beam (60) that set up relatively in upper and lower direction, main crashproof roof beam (30) with the middle-section portion of front bumper (10) is connected, vice crashproof roof beam (60) with the lower section portion of front bumper (10) is relative and the interval sets up in the front and back direction, the energy-absorbing structure that contracts includes: the energy-absorbing structure comprises a first crumple energy-absorbing structure arranged on the main anti-collision beam (30) and a second crumple energy-absorbing structure arranged on the auxiliary anti-collision beam (60).

3. Front impact protection device (100) for a vehicle according to claim 2, characterized in that the first crush energy-absorbing structure is configured as a mounting bracket (40), the middle section of the front bumper (10) being connected with the mounting bracket (40) by a foot (11).

4. The head crash protection device (100) for a vehicle according to claim 3, wherein said mounting bracket (40) comprises: vertical board (41) and horizontal board (42), the one end of vertical board (41) with main crashproof roof beam (30) are connected, keep away from the other end of vertical board (41) main crashproof roof beam (30) set up, the one end of horizontal board (42) with the other end of vertical board (41) is connected, the other end of horizontal board (42) extend forward and with stabilizer blade (11) are fixed.

5. The front impact protection device (100) for a vehicle according to claim 4, wherein the other end of the vertical plate portion (41) is spaced from an upper surface of the main impact beam (30) by not less than 20 mm.

6. The head crash protection device (100) for a vehicle according to claim 4, wherein a crush slot is provided on the horizontal plate portion (42), and the leg (11) is connected to the horizontal plate portion (42) at a front end of the crush slot.

7. The front impact protection device (100) for a vehicle according to claim 2, wherein said second crush energy absorption structure is configured as an energy absorption block (50), said energy absorption block (50) being provided on a side of said sub impact beam (60) facing a lower section of said front bumper (10).

8. The head impact protection device (100) for a vehicle according to claim 7, wherein said energy absorption block (50) is substantially "C" shaped, and one end having an open mouth is connected to said sub impact beam (60), said energy absorption block (50) being plural, and said energy absorption blocks (50) being provided at intervals on said sub impact beam (60) and extending in different lengths.

9. The front impact protection device (100) for a vehicle according to claim 1, wherein the hood includes: the lock catch comprises a lock catch mounting plate (22) and a lock catch (21), wherein the lock catch mounting plate (22) is provided with a mounting boss (223) and a plurality of reinforcing ribs (222) and a plurality of lightening holes (221) which are located on two sides of the mounting boss (223), and the lock catch (21) is mounted on the mounting boss (223).

10. A vehicle, characterized by comprising: front impact protection device (100) according to any one of claims 1 to 9.

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