CN210822129U

CN210822129U - Anti-collision beam assembly for vehicle

Info

Publication number: CN210822129U
Application number: CN201921006180.9U
Authority: CN
Inventors: 姜熙宇; 任建昆; 马赛; 沈欣; 史蒂芬·凯普福斯伯格
Original assignee: Beijing Electric Vehicle Co Ltd
Current assignee: Beijing Electric Vehicle Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-06-23
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses an anticollision roof beam assembly for vehicle, according to the utility model discloses an anticollision roof beam assembly for vehicle includes: an impact beam extending transverse to a direction of travel of the vehicle; the energy absorption box is of a cylindrical structure, one end of the energy absorption box is fixedly connected with the anti-collision beam, and the other end of the energy absorption box is connected with the longitudinal beam of the vehicle; wherein the anti-collision beam and the energy absorption box are both carbon fiber pieces. According to the utility model discloses an anticollision roof beam assembly's light in weight, structural strength is high, and anti collision performance is good.

Description

Anti-collision beam assembly for vehicle

Technical Field

The utility model belongs to the technical field of the vehicle and specifically relates to an anticollision roof beam assembly for vehicle is related to.

Background

In the correlation technique, the weight of vehicle anticollision roof beam assembly is big, can not satisfy present automobile body lightweight development direction, and current anticollision roof beam assembly has adopted the metalwork that the quality is lighter in order to reduce self weight, and nevertheless this type of metal intensity is lower, can not satisfy the collision requirement of anticollision roof beam assembly.

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 an anticollision roof beam assembly, this anticollision roof beam assembly's light in weight, structural strength is high, and anti collision performance is good.

According to the utility model discloses an anticollision roof beam assembly for vehicle includes: an impact beam extending transverse to a direction of travel of the vehicle; the energy absorption box is of a cylindrical structure, one end of the energy absorption box is fixedly connected with the anti-collision beam, and the other end of the energy absorption box is connected with the longitudinal beam of the vehicle; wherein the anti-collision beam and the energy absorption box are both carbon fiber pieces.

According to the utility model discloses an anticollision roof beam assembly for vehicle, anticollision roof beam and energy-absorbing box adopt the carbon fiber part, have effectively reduced the weight of anticollision roof beam assembly, adopt the carbon fiber part can improve the energy-absorbing effect of energy-absorbing box effectively simultaneously, strengthen the structural strength of anticollision roof beam, make the anticollision roof beam assembly can improve the anti collision ability of vehicle better, have promoted the security performance of vehicle.

According to the utility model discloses an embodiment, the energy-absorbing box with link to each other through first switching support between the anticollision roof beam, the energy-absorbing box with the longeron passes through the second switching support and links to each other, first switching support with between the anticollision roof beam first switching support with between the energy-absorbing box with it is fixed all to adopt the bonding between the second switching support.

According to the utility model discloses an embodiment, be provided with on the first switching support with energy-absorbing box complex first turn-ups portion, be provided with on the second switching support with energy-absorbing box complex second turn-ups portion.

According to the utility model discloses an embodiment, first turn-ups with the internal face of energy-absorbing box one end is fixed, second turn-ups with the internal face of the energy-absorbing box other end is fixed.

According to the utility model discloses an embodiment, anticollision roof beam assembly still includes: and the trailer hook is arranged on the anti-collision beam and is fixedly bonded with the anti-collision beam.

According to the utility model discloses an embodiment, anticollision roof beam includes: an inner tubular beam, a plurality of which arranged side by side extend transversely to the direction of travel of the vehicle; the outer tube beam is internally provided with an accommodating space for accommodating the inner tube beams; the outer tubular beam and the inner tubular beam are both formed by paving a plurality of carbon fiber layers and soaking resin, and the outer tubular beam is coated on the outer side of the inner tubular beam.

According to the utility model discloses an embodiment, it is a plurality of interior tubular beams is adjacent arranging in the direction of height of vehicle.

According to an embodiment of the present invention, the channel of the inner tubular beam is further provided with a filling foam.

According to the utility model discloses an embodiment, outer tubular beams or every interior tubular beams is spread the layer combination by a plurality of carbon fibers and is formed, and is a plurality of the carbon fiber is spread the at least partial angle of laying in the layer and is different.

According to the utility model discloses an embodiment, it is a plurality of still be provided with the support core between the carbon fiber shop layer.

According to the utility model discloses an embodiment, the energy-absorbing box includes: the energy absorption box comprises an energy absorption box body, wherein the energy absorption box body is of a cylindrical structure and is formed by a plurality of layers of first carbon fiber layers; the fastening layer is arranged on the outer side of at least part of the first carbon fiber paving layers in the multiple layers, and the fastening layer extends along the circumferential direction of the energy absorption box body to hoop the part of the first carbon fiber paving layers.

According to the utility model discloses an embodiment, the fastening layer is in the energy-absorbing box receives the ascending length of impact side to be less than the energy-absorbing box body is in the energy-absorbing box receives the ascending length of impact side.

According to the utility model discloses an embodiment, the fastener is spread the layer by the second carbon fiber and is formed, the carbon fiber direction that the layer was spread to the second carbon fiber with the direction quadrature that the energy-absorbing box received the impact.

According to the utility model discloses an embodiment, the carbon fiber is spread the layer and is adopted unipolar continuous fibers to spread the layer.

According to the utility model discloses an embodiment, fastening layer sets up the intermediate position of energy-absorbing box body.

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 structural view of an impact beam according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the matching of the inner tubular beam and the outer tubular beam according to the embodiment of the present invention;

fig. 3 is a schematic structural view of a core mold for manufacturing an inner tubular beam according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a core mold for manufacturing an inner tubular beam according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating a plurality of core molds for manufacturing an inner tubular beam after being fixed according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of an energy absorption box according to an embodiment of the present invention;

FIG. 7 is a schematic view of the location of a fastening layer in a crash box according to an embodiment of the invention;

FIG. 8 is a schematic view of a core mold used to manufacture the energy absorber box according to an embodiment of the present invention;

fig. 9 is a schematic structural view of an impact beam assembly according to an embodiment of the present invention;

fig. 10 is an exploded view of an impact beam assembly according to an embodiment of the present invention;

FIG. 11 is a schematic view of a crash box according to an embodiment of the present invention mated to a first transfer bracket and a second transfer bracket, respectively;

FIG. 12 is a flow chart of a method of manufacturing a crash box according to an embodiment of the invention;

fig. 13 is a flow chart of a method of manufacturing an impact beam according to an embodiment of the present invention.

Reference numerals:

the impact beam assembly 10 is shown in an exemplary embodiment,

the impact beam 1 is provided with a plurality of anti-collision beams,

an inner tubular beam 11, a first inner tubular beam 111, a second inner tubular beam 112, a third inner tubular beam 113,

the outer tubular beam 12 is provided with,

the energy-absorbing box 2 is arranged on the upper portion of the vehicle,

the crash box body 21, the first sidewall 211, the second sidewall 212, the third sidewall 213, the fourth sidewall 214,

the combination of the fastening layer 215, the rounded corners 216,

a first transit bracket 31, a first burring part 311, a second transit bracket 32, a second burring part 321,

the towing hook 4 is arranged on the front end of the trailer hook,

the pedestrian protection support 5 is provided with a pedestrian protection support,

mandrel 6, groove 61, wrap stitch 62.

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.

An impact beam 1 for a vehicle according to an embodiment of the present invention is described below with reference to fig. 1 to 11.

The anti-collision beam 1 comprises an inner tubular beam 11 and an outer tubular beam 12, wherein the inner tubular beams 11 arranged side by side transversely extend along the running direction of a vehicle; an accommodating space for accommodating a plurality of inner tubular beams 11 is arranged in the outer tubular beam 12, wherein the outer tubular beam 12 and the inner tubular beams 11 are formed by laying a plurality of carbon fiber laying layers and infiltrating resin, and the outer tubular beam 12 is coated on the outer side of the inner tubular beams 11. According to the utility model discloses an in crashproof roof beam 1, a plurality of interior tubular beams 11 can be arranged from top to bottom and/or fore-and-aft direction, and a plurality of interior tubular beams 11 can be followed the left and right sides direction extension of vehicle, interior tubular beams 11 set up when the front side of vehicle, can guarantee that interior tubular beams 11 can cover the width direction of vehicle, improve crashproof roof beam 1 and strengthen the protection effect of side to the vehicle, a plurality of interior tubular beams 11 arrange side by side and make a plurality of interior tubular beams 11 make up into the structure that has good anticollision effect, outer tubular beams 12 can accept a plurality of interior tubular beams 11 in the accommodation space of self, can keep a plurality of interior tubular beams 11 the structure of arranging, outer tubular beams 12 cladding is in a plurality of interior tubular beams 11's the outside simultaneously, in order to improve crashproof roof beam 1's structural strength.

When the anti-collision beam 1 of the vehicle is impacted, the outer surface of the outer tubular beam 12 is impacted firstly, the impact force is gradually transmitted to the plurality of inner tubular beams 11 in the accommodating space, and the plurality of inner tubular beams 11 can sequentially transmit the impact force, so that the impact force is buffered, and the destructiveness of the impact force is reduced; the impact force can also be transmitted simultaneously to a plurality of interior tubular beams 11, makes the impact force disperse to every interior tubular beam 11 on, reduces the deformation degree of a plurality of interior tubular beams 11, improves anticollision roof beam 1's structural strength. The arrangement type of the inner tubular beams 11 is not limited herein, but it is certain that the structural strength of the impact beam 1 can be effectively improved and the damage caused by the impact force can be reduced by arranging the inner tubular beams 11 in the outer tubular beam 12, so that the impact beam 1 can improve the frontal impact resistance of the vehicle.

The inner tubular beam 11 and the outer tubular beam 12 are arranged to be paved by a plurality of carbon fiber paving layers and formed by infiltrating resin, so that the structural strength of the inner tubular beam 11 and the outer tubular beam 12 after molding can be ensured, the reliability of the anti-collision beam 1 is improved, and the weight of the anti-collision beam is reduced.

According to the utility model discloses an anticollision roof beam 1, through set up a plurality of interior tubular beams 11 in the accommodation space of outer tubular beam 12, a plurality of interior tubular beams 11 can remain stable under the constraint of outer tubular beam 12, the structural strength of anticollision roof beam 1 can be improved in the setting of a plurality of interior tubular beams 11 and outer tubular beam 12, anticollision roof beam 1 can promote the anti collision performance of vehicle by a wide margin, the security of vehicle has been guaranteed, interior tubular beam 11 and outer tubular beam 12 all adopt a plurality of carbon fiber to spread the layer and lay, the structural strength of anticollision roof beam 1 has further been improved. According to the utility model discloses an embodiment, a plurality of interior tubular beams 11 are arranged in proper order in the upper and lower direction, arrange a plurality of interior tubular beams 11 in proper order in the upper and lower direction, have improved anticollision roof beam 1's protective area, have reduced the width of anticollision roof beam 1 on the horizontal direction simultaneously. The plurality of inner tubular beams 11 are arranged in the up-down direction, so that when the anti-collision beam 1 bears impact force, the front side of each inner tubular beam 11 is stressed, the impact force can be uniformly dispersed to each inner tubular beam 11, excessive impact force is avoided, the impact resistance of the anti-collision beam 1 is improved, and the anti-collision beam 1 can protect vehicles more effectively.

As shown in fig. 2, according to an embodiment of the present invention, the plurality of inner tubular beams 11 include a first inner tubular beam 111, a second inner tubular beam 112, and a third inner tubular beam 113 arranged in sequence from top to bottom, and the height of the first inner tubular beam 111, the height of the second inner tubular beam 112, and the height of the third inner tube are different. The first inner tubular beam 111, the second inner tubular beam 112 and the third inner tubular beam 113 are set to different heights, and the structure of the inner tubular beams 11 can be optimized according to the stress conditions of each point in the anti-collision beam 1, for example, when the impact force at a certain point is concentrated, the height of the inner tubular beam 11 can be reduced, so that the front stress area of the inner tubular beam 11 is reduced, the structural strength of the inner tubular beam 11 is improved, and for the position with relatively small impact force, the height of the inner tubular beam 11 can be properly improved, and the stress surface of the inner tubular beam 11 is ensured to be in a proper range.

Set up a plurality of interior tubular beams 11 into different heights, optimized crashproof roof beam 1's structure, made crashproof roof beam 1 have better impact effect.

In an embodiment of the present invention, the height of the second inner tubular beam 112 is less than the height of the first inner tubular beam 111, the height of the first inner tubular beam 111 is less than the height of the third inner tubular beam 113, the second inner tubular beam 112 is disposed at the middle part of the second inner tubular beam 112 near the anti-collision beam 1, and the middle part of the anti-collision beam 1 is greatly impacted, the height of the second inner tubular beam 112 is set to be minimum, the structural strength of the second inner tubular beam 112 is higher than the first inner tubular beam 111 and the third inner tubular beam 113, so that the anti-collision beam 1 can better bear the impact force.

According to the utility model discloses an embodiment, still be provided with the packing foam in the passageway of interior tubular beams 11, interior tubular beams 11 can construct for hollow beam, set up the packing foam in the inside of interior tubular beams 11, make the inside of interior tubular beams 11 increase energy-absorbing piece, interior tubular beams 11 is through the energy-absorbing of inside energy-absorbing piece when deformation, can obtain better shock resistance, improve the energy-absorbing effect of anticollision roof beam 1, reduce the injury that the passenger received in the vehicle effectively.

According to the utility model discloses an embodiment can also be provided with the material of other types in the inside of tubular beams 11, not only is limited to the filling foam, can also set up strengthening rib isotructure in the inside of tubular beams 11 to improve the structural strength of tubular beams 11 in, promote the energy-absorbing effect of anticollision roof beam 1, so that the anti-collision performance and the security performance of vehicle further improve.

According to the utility model discloses an embodiment, interior tubular beams 11 and outer tubular beams 12 are carbon fiber tubular beams, and the tubular beams that all construct interior tubular beams 11 and outer tubular beams 12 for carbon fiber material can guarantee crashproof roof beam 1's structural strength, reduce crashproof roof beam 1's weight simultaneously, promote crashproof roof beam 1's anti-collision performance.

According to the utility model discloses an embodiment, outer tubular beams 12 or every interior tubular beams 11 all have a plurality of carbon fiber to spread the layer combination and form, and the angle is different to at least partly lay in a plurality of carbon fiber shop layers. The carbon fiber lays the angle difference of laying, can make carbon fiber material have different performance, and according to the utility model discloses an interior tubular beams 11 and outer tubular beams 12 are spread the layer by a plurality of carbon fibers and are constituteed, sets up the angle of laying of a plurality of layers to different, can make interior tubular beams 11 and outer tubular beams 12 have more comprehensive performance, can change the angle that the layer was spread to the difference according to specifically the demand simultaneously, and then improves the structural strength of interior tubular beams 11 and outer tubular beams 12, makes anticollision roof beam 1 have better anti-collision performance.

According to the utility model discloses an embodiment, tubular beam 11 is spread layer, 0 carbon fiber layer of multilayer and 90 carbon fiber layers of multilayer by multilayer 45 carbon fiber and is combined and form in every.

According to the utility model discloses an embodiment, be provided with the support core between a plurality of carbon fibre layers of spreading. The support core may be used to maintain the structure of each carbon fiber ply.

The following describes a method of forming the impact beam 1.

As shown in fig. 3 to 5, a plurality of core molds 6 are prepared, and a plurality of carbon fiber plies are laid on each core mold 6 to form an inner tubular beam 11 preform; laying a plurality of carbon fiber layers on the outer sides of a plurality of inner tubular beam 11 preforms arranged side by side to form outer tubular beam 12 preforms; the outer tubular beam 12 preform and the plurality of inner tubular beam 11 preforms are simultaneously infiltrated with resin to form the plurality of inner tubular beam 11 preforms into the plurality of inner tubular beams 11, and the outer tubular beam 12 preform is formed into the outer tubular beam 12 that wraps outside the plurality of inner tubular beams 11. As shown in fig. 3 and 4, the core mold 6 may be configured in a columnar structure, and by providing a plurality of layers on the core mold 6 to form an inner tubular beam 11 preform, fixing a plurality of core molds 6 after forming the inner tubular beam 11 preform, and laying a plurality of carbon fiber layers again on the outer peripheries of the plurality of inner tubular beam 11 preforms to form an outer tubular beam 12 preform, the inner tubular beam 11 preform may be provided inside the outer tubular beam 12 preform during the preforming process to form the integral structure of the impact beam 1, and then simultaneously infiltrating the inner tubular beam 11 and the outer tubular beam 12 with resin to simultaneously mold and fix the inner tubular beam 11 and the outer tubular beam 12. After the inner tubular beam 11 and the outer tubular beam 12 are fixed and molded, the core mold provided in the inner tubular beam 11 may be withdrawn, and the molded impact beam 1 may be cut according to a desired length.

According to the utility model discloses a 1 shaping manufacturing approach of anticollision roof beam can be in the forming process, with interior tubular beams 11 setting in the inside of outer tubular beams 12, interior tubular beams 11 and outer tubular beams 12 need not the shaping alone, can also make the cooperation between a plurality of interior tubular beams 11 and the outer tubular beams 12 inseparable simultaneously, has guaranteed the reliability of anticollision roof beam 1, and this 1 shaping manufacturing approach of anticollision roof beam shaping is fast, and the defective percentage is low.

As shown in fig. 4, according to an embodiment of the present invention, each core mold 6 is provided with a groove 61 extending in the longitudinal direction, and by providing the groove 61 on each core mold 6, the resin can be made to flow better in the core mold 6, and the impregnation effect of the carbon fiber layer can be improved.

According to the utility model discloses an embodiment, the first layer carbon fiber of mandrel 6 is spread the layer and is spread the layer for the 3D weaving layer with outermost carbon fiber, and the carbon fiber that adopts 3D to weave is spread the layer and is had light in weight, than rigidity high, characteristics high than intensity, and the carbon fiber that adopts 3D to weave is spread the layer and can be improved the structural strength of interior tubular beams 11, outer tubular beams 12, makes anticollision roof beam 1 have better anti-collision performance simultaneously.

According to the utility model discloses an embodiment, the 3D weaving layer is the layer is spread to 45 carbon fiber.

The energy absorption box 2 for an impact beam 1 according to the invention is described below.

The energy absorption box comprises an energy absorption box body 21 and a fastening layer 215, wherein the energy absorption box body 21 is of a cylindrical structure, and the energy absorption box body 21 is formed by a plurality of layers of first carbon fiber layers; a fastening layer 215, wherein the fastening layer 215 is arranged at least partially outside the plurality of first carbon fiber layers, and the fastening layer 215 extends along the circumferential direction of the energy absorption box body 21 to hoop part of the first carbon fiber layers.

As shown in fig. 6, according to the utility model discloses an energy-absorbing box 2 for crashproof roof beam 1 includes energy-absorbing box body 21, and the one end of energy-absorbing box body 21 links to each other with crashproof roof beam 1, and the other end of energy-absorbing box body 21 links to each other with the longeron of vehicle, and energy-absorbing box body 21 constructs for carbon fiber spare, and is provided with fastening layer 215 on the energy-absorbing box body 21.

According to the utility model discloses an energy-absorbing box body 21 has the first carbon fiber of multilayer to spread the layer and forms, makes energy-absorbing box body 21 have the advantage of the high light in weight of intensity, can reduce energy-absorbing box 2's weight by a wide margin, strengthens energy-absorbing box 2's structural strength, promotes energy-absorbing box 2's energy-absorbing effect. The fastening layer 215 is arranged on the outer side of the first carbon fiber paving layer, so that the structural strength of the energy absorption box 2 can be further improved, and the fastening layer 215 extends in the circumferential direction of the energy absorption box body 21 and is suitable for improving the structural strength of the first carbon fiber paving layer in the circumferential direction.

Further, the fastening layer 215 can be arranged at a stress concentration point in the energy-absorbing box body 21, the structural strength of the energy-absorbing box body 21 is further improved through the arrangement of the fastening layer 215, and the energy-absorbing effect of the energy-absorbing box 2 is improved.

According to the utility model discloses an energy-absorbing box 2 for crashproof roof beam 1, through constructing energy-absorbing box body 21 for carbon fiber parts, improved energy-absorbing box 2's structural strength, reduced energy-absorbing box 2's weight, set up fastening layer 215 simultaneously on energy-absorbing box body 21, further strengthened energy-absorbing box 2's structural strength, promoted energy-absorbing box 2's energy-absorbing effect.

According to the utility model discloses an embodiment, fastening layer 215 is in the crash box 2 receives the ascending length in impact direction is less than crash box body 21 is in crash box 2 receives the ascending length in impact direction. It can be understood that fastening layer 215 can be constructed as the ring that encircles outside a plurality of first carbon fiber shop layers, and fastening layer 215's thickness is less than the thickness of energy-absorbing box 2, this makes fastening layer 215's structural strength weak with the structural strength of first carbon fiber shop layer, when the energy-absorbing box received the impact, fastening layer 215 can produce deformation because of the impact force, after fastening layer 215 takes place the deformation, produce the mutagenic effect to first carbon fiber shop layer, make first carbon fiber shop layer also take place deformation thereupon, and not directly transmit the impact force backward, so set up fastening layer 215 can ensure that energy-absorbing box 2 can stabilize deformation after receiving the impact force.

As shown in fig. 7, according to an embodiment of the present invention, the fastening layer 215 is formed by a second carbon fiber layer, and the direction of the carbon fiber of the second carbon fiber layer is orthogonal to the direction of the impact on the energy absorption box 2.

According to the utility model discloses an energy-absorbing box body 21 can be constructed for tubular structure, the carbon fiber direction of fastening layer 215 and the length direction quadrature of energy-absorbing box body 21. The opening of the tubular structure of the energy-absorbing box body 21 is in the front-back direction, namely the length direction of the energy-absorbing box 2 is the connecting line direction between the front opening and the back opening, the front side and the back side of the energy-absorbing box body 21 are respectively connected with the anti-collision beam 1 and the longitudinal beam of the vehicle, and when the vehicle is subjected to frontal collision, the energy-absorbing box body 21 deforms from front to back; fastening layer 215 has better anti deformability in fibrous length direction, and take place deformation relatively more easily in fibrous width direction, the fibre direction setting of fastening layer 215 and the length direction quadrature of energy-absorbing box body 21, the width direction that makes the carbon fiber is unanimous with the deformation direction of energy-absorbing box body 21, at the in-process of energy-absorbing box 2 transmission impact force, fastening layer 215 takes place deformation more easily, make energy-absorbing box 2's local strength change, in order to play the effect of induced deformation, ensure energy-absorbing box 2's deformation stability, promote energy-absorbing box 2's energy-absorbing effect, and then reduce the impact force of frontal collision to passenger in the car. According to the utility model discloses an embodiment, the carbon fiber is spread the layer and is adopted single axial continuous fibers to spread the layer, adopts single axial continuous fibers to spread the layer including improving the structural strength that the carbon fiber spread the layer, reduces the carbon fiber and spreads the manufacturing degree of difficulty that the layer was spread.

According to the utility model discloses an embodiment, fastening layer 215 sets up the intermediate position at energy-absorbing box body 21 to guarantee that vehicle when bumping, fastening layer 215 can bear the impact force reliably, ensure that the impact force is applyed on fastening layer 215, so that fastening layer 215 can induce deformation to energy-absorbing box body 21 under the effect of impact force, make energy-absorbing box body 21 can receive the impact after taking place deformation steadily.

As shown in fig. 7, according to an embodiment of the present invention, the crash box body 21 includes a first sidewall 211, a second sidewall 212, a third sidewall 213 and a fourth sidewall 214, wherein the first sidewall 211, the second sidewall 212, the third sidewall 213 and the fourth sidewall 214 are connected end to end and the round angle 216 between two adjacent sidewalls is excessive; wherein the fastening layer 215 is disposed at the rounded corner 216 between the two adjacent sidewalls.

The first side wall 211, the second side wall 212, the third side wall 213 and the fourth side wall 214 are sequentially connected, so that the energy absorption box body 21 is of a cylindrical structure, the fillet 216 is arranged between the two adjacent side walls, the using amount of carbon fiber materials can be reduced, the cost of the energy absorption box 2 is reduced, meanwhile, the fillet 216 is arranged to enable the periphery of the energy absorption box body 21 to be more smooth, and the processing difficulty is reduced. Fillet 216 department between two adjacent lateral walls sets up fastening layer 215, can improve the structural strength of fillet 216 department, the structural strength of fillet 216 department is lower than the structural strength of other lateral wall positions, deformation takes place more easily, set up fastening layer 215 in fillet 216 department, deformation can be better induced fillet 216 department through fastening layer 215's deformation and take place deformation, make energy-absorbing box body 21 in time deform after bumping, with the absorption impact force, protect the passenger.

According to the utility model discloses an embodiment, energy-absorbing box body 21 is invariable and the wall thickness is the same in length direction's ascending cross-section, it can be understood that first lateral wall 211, second lateral wall 212, third lateral wall 213 and fourth lateral wall 214 and connect fillet 216 between two adjacent lateral walls the wall thickness on length direction is the same, can guarantee that energy-absorbing box body 21 is when bearing the impact force that comes from the front side, the atress of each position is even, and intensity is unified, guarantee that energy-absorbing box body 21 all takes place stable deformation in each position along fore-and-aft direction, and avoid the deformation of a certain position in energy-absorbing box body 21 excessive, and the deformation volume of other positions is less, it is stable abundant to ensure the deformation of energy-absorbing box body 21.

According to the utility model discloses an embodiment, the shape of the one end of energy-absorbing box 2 sets up with crashproof roof beam 1 along with shape, crashproof roof beam 1 can construct the arc of both ends towards the rear side bending of vehicle, and energy-absorbing box 2 sets up the rear surface at crashproof roof beam 1, for guaranteeing to be connected stably before energy-absorbing box 2 and crashproof roof beam 1, construct the front end of energy-absorbing box 2 and the shape looks adaptation of the rear surface of crashproof roof beam 1, can laminate steadily with the rear surface of the front end of guaranteeing energy-absorbing box 2 and crashproof roof beam 1, improve the biography power effect between crashproof roof beam 1 and the energy-absorbing box 2, make the atress of 2 front ends of energy-absorbing box even, deformation is stable abundant.

According to the utility model discloses an embodiment, energy-absorbing box 2 is spread the layer by a plurality of carbon fibers and is combined and form, a plurality of carbon fibers are spread the layer and are all adopted unipolar to spread the layer, fibrous direction can be 0 in the unipolar fiber layer, 30, 45, 60 and 90 etc. can make every fiber layer have good structural strength, the more easy emergence of unipolar fiber layer simultaneously changes, make energy-absorbing box 2 can absorb impact energy effectively when receiving the front impact.

According to the utility model discloses an embodiment, a plurality of first carbon fiber spread the at least partial carbon fiber direction in the layer different, construct the carbon fiber direction that a plurality of first carbon fiber spread the layer for extending in the angle of difference, can improve the structural strength after a plurality of first carbon fiber spread the layer combination, promoted energy-absorbing box body 21's structural strength, make energy-absorbing box 2 can absorb more energy after deformation, improved the security of vehicle.

According to the utility model discloses an embodiment, be provided with the energy-absorbing cavity in the energy-absorbing box body 21, be provided with the packing foam in the energy-absorbing cavity, can improve the energy-absorbing effect of energy-absorbing box 2 through set up the packing foam in the energy-absorbing cavity, the packing foam can further absorb the impact energy who comes from the vehicle forward, improves the energy-absorbing effect of energy-absorbing box 2.

Other types of energy absorbing pieces can be arranged in the energy absorbing box 2, for example, reinforcing ribs are additionally arranged, or metal pipes are arranged in the energy absorbing box 2, so that the energy absorbing effect of the energy absorbing box 2 can be further improved through the arrangement of the energy absorbing pieces, the mechanical property, the failure mode and the fracture mode of the energy absorbing box 2 are changed, the collision requirements of different vehicle types are met, and the adaptability of the energy absorbing box 2 is improved.

The method of manufacturing the crash box 2 according to the invention is briefly described below.

The manufacturing method of the crash box 2 comprises the following steps: the carbon fiber is adhered with resin after passing through the resin pool to become infiltrated carbon fiber; the wetting carbon fibers are distributed and wound on the core mold 6 according to the design through a winding machine to form an inner-layer first carbon fiber layer, and the winding machine is controlled to wind the wetting carbon fibers on the outer side of the inner-layer first carbon fiber layer in a direction perpendicular to the impacted direction of the energy absorption box 2 to form a second carbon fiber layer; optionally, continuously winding and infiltrating carbon fibers outside the second carbon fiber paving layer and the inner first carbon fiber layer to form an outer first carbon fiber paving layer.

According to the manufacturing method for the energy absorption box 2, the energy absorption box 2 is manufactured in a mode of winding and infiltrating the first carbon fiber layer and the second carbon fiber layer, compared with the traditional metal part, the steps of stamping and welding are omitted, the energy absorption box can be formed at one time, and the size precision of the part is effectively improved; meanwhile, the production can be fully automated, the production beat and efficiency of parts are obviously improved, and the production cost is effectively reduced.

According to the utility model discloses an embodiment, the both ends of mandrel 6 are provided with the winding stitch 62 that is used for adjusting the carbon fiber direction, as shown in fig. 8, according to the utility model discloses an embodiment is provided with the winding stitch 62 that is used for arranging 0 carbon fiber layer on the mandrel 6, sets up winding stitch 62 on mandrel 6, makes the fibre that the carbon fiber laid the layer around establishing on winding stitch 62, has guaranteed the stability that the fibre laid the layer, makes the winding that the fibre laid the layer more reliable convenient, and the density degree of winding stitch 62 can be changed according to specific requirement.

According to the utility model discloses an embodiment, before the winding carbon fiber, scribble the release agent to mandrel 6 and winding stitch 62, guarantee that the carbon fiber can easily take mandrel 6 out from the energy-absorbing box 2 after the shaping after the winding is accomplished, utilize acetone to carry out cleaning to mandrel 6 in the spraying release agent to ensure that the shaping of carbon fiber is reliable and stable.

According to an embodiment of the invention, the winding direction of the infiltrated carbon fibers is 0 °, ± 30 °, ± 45 °, ± 60 ° or 90 ° to the horizontal axis.

According to an embodiment of the present invention, the core mold 6 and the molded component are cooled together until the core mold 6 is separated from the molded component, and then the core mold 6 is removed. After the carbon fiber is wound, the core mold 6 is cured in a sealed container, and in order to ensure the curing effect, the core mold rotates around the central shaft during the curing process, so that all parts are heated uniformly. And after the solidification is finished, synchronously cooling the core mold 6 and the formed part until the carbon fiber part is solidified, and drawing out the core mold 6 from the middle part of the formed part to finish the forming of the energy absorption box 2.

An impact beam assembly 10 according to the present invention is described below.

As shown in fig. 9 and 10, according to the utility model discloses an anticollision roof beam assembly 10 includes anticollision roof beam 1 and energy-absorbing box 2, and anticollision roof beam 1 extends transversely to the direction of travel of vehicle, and energy-absorbing box 2 constructs to be the tubular structure, and the one end of energy-absorbing box 2 and anticollision roof beam 1 fixed connection, and the other end of energy-absorbing box 2 links to each other with the longeron of vehicle, and wherein anticollision roof beam 1 and energy-absorbing box 2 are the carbon fiber spare. The carbon fiber part is used as the anti-collision beam 1 and the energy absorption box 2, so that the weight of the anti-collision beam assembly 10 can be effectively reduced, the strength of the anti-collision beam assembly 10 is improved, the anti-collision capacity of a vehicle is effectively improved by the anti-collision beam assembly 10, and the safety performance of the vehicle is improved.

According to the utility model discloses an anticollision roof beam assembly 10 for vehicle, anticollision roof beam 1 and energy-absorbing box 2 adopt the carbon fiber part, have effectively reduced anticollision roof beam assembly 10's weight, adopt the carbon fiber part can improve energy-absorbing box 2's energy-absorbing effect effectively simultaneously, strengthen anticollision roof beam 1's structural strength, make anticollision roof beam assembly 10 can improve the anti collision ability of vehicle better, have promoted the security performance of vehicle.

According to the utility model discloses an embodiment, link to each other through first switching support 31 between energy-absorbing box 2 and the anticollision roof beam 1, link to each other through second switching support 32 between energy-absorbing box 2 and the longeron, between first switching support 31 and the anticollision roof beam 1, between first switching support 31 and the energy-absorbing box 2, all adopt between energy-absorbing box 2 and the second switching support 32 to bond fixedly. The anti-collision beam 1, the first switching support 31, the energy absorption box 2, the second switching support 32 and the longitudinal beam are fixed through bonding, the number of parts in the anti-collision beam assembly 10 can be reduced, the connection relation among the parts is simplified, the connection among the parts is simpler and more convenient, and meanwhile, the bonding fixation is adopted, so that the connection strength among the parts can be met.

And the first transfer bracket 31 and the anti-collision beam 1, the first transfer bracket 31 and the energy absorption box 2 and the second transfer bracket 32 are fixed by adopting double-component epoxy structural adhesive so as to ensure the reliability of connection between parts.

According to an embodiment of the present invention, the first transfer bracket 31 is provided with a first flanging part 311 engaged with the energy-absorbing box 2, the second transfer bracket 32 is provided with a second flanging part 321 engaged with the energy-absorbing box 2, the first flanging part 311 is arranged to increase the contact area between the first transfer bracket 31 and the energy-absorbing box 2, so that the connection between the first transfer bracket 31 and the energy-absorbing box 2 is more stable, and the connection strength between the first transfer bracket 31 and the energy-absorbing box 2 is increased; the second flanging portion 321 is suitable for increasing the contact area between the second adapter bracket 32 and the crash box 2, so that the connection between the second adapter bracket 32 and the crash box 2 is more stable, and the connection strength between the second adapter bracket 32 and the crash box 2 is increased.

As shown in fig. 11, according to an embodiment of the present invention, the crash box 2 is constructed in a tubular structure, the first flange portion 311 is fixed to an inner wall surface of one end of the crash box 2, and the second flange portion 321 is fixed to an inner wall surface of the other end of the crash box 2. The first adapter bracket 31 and the second adapter bracket 32 are respectively arranged at the front end and the rear end of the energy absorption box 2, the first flanging part 311 can extend towards the rear side on the first adapter bracket 31, so that the first flanging part 311 forms a cylindrical flanging structure slightly smaller than the diameter of the energy absorption box 2, and when the first flanging part 311 is connected with the energy absorption box 2, the first flanging part 311 can be arranged in the energy absorption box 2 and fixedly connected with the inner wall surface of the energy absorption box 2; the second burring part 321 may extend toward the front side on the second adaptor bracket 32, so that the second burring part 321 forms a cylindrical burring structure slightly smaller than the diameter of the crash box 2, and when the second burring part 321 is connected with the crash box 2, the second burring part 321 may be disposed inside the crash box 2 and fixedly connected with the inner wall surface of the crash box 2.

The first transfer support 31 comprises a first transfer support body part, the first transfer support body part extends along the vertical direction, is opposite to the front end face of the energy absorption box 2 and is suitable for being bonded and fixed with the end face of the energy absorption box 2; the second adapter bracket 32 includes a second adapter bracket body portion extending in the vertical direction and facing the rear end face of the energy absorption box 2, and adapted to be bonded and fixed to the end face of the energy absorption box 2.

According to the utility model discloses an embodiment, crashproof roof beam assembly 10 still includes towing hook 4, and towing hook 4 sets up on crashproof roof beam 1 and bonds fixedly with crashproof roof beam 1, wherein can adopt to glue between towing hook 4 and the crashproof roof beam 1 to rivet to be connected, glues to rivet the relatively ordinary fixed intensity that bonds of intensity of connecting bigger, can fix towing hook 4 on crashproof roof beam 1 better, has improved the joint strength between towing hook 4 and the crashproof roof beam 1.

According to the utility model discloses an embodiment, tow hook 4 includes tow hook mounting panel and tow hook body, and tow hook mounting panel adopts gluey riveting to fix in the front side of anticollision roof beam 1, tow hook body and tow hook mounting panel fixed connection.

According to the utility model discloses an embodiment still is provided with pedestrian protection support 5 in the front side of crashproof roof beam assembly 10, and pedestrian protection support 5 can be used for protecting the pedestrian, reduces the injury that the pedestrian received when bumping with the vehicle.

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, "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

1. An impact beam assembly (10) for a vehicle, comprising:

an impact beam (1), the impact beam (1) extending transversely to the direction of travel of the vehicle;

the energy absorption box (2) is of a cylindrical structure, one end of the energy absorption box (2) is fixedly connected with the anti-collision beam (1), and the other end of the energy absorption box (2) is connected with a longitudinal beam of the vehicle; the anti-collision beam (1) and the energy absorption box (2) are both carbon fiber pieces.

2. The anti-collision beam assembly (10) for the vehicle according to claim 1, wherein the energy absorption box (2) is connected with the anti-collision beam (1) through a first adapter bracket (31), the energy absorption box (2) is connected with the longitudinal beam through a second adapter bracket (32), and the first adapter bracket (31) is fixed with the anti-collision beam (1), the first adapter bracket (31) is fixed with the energy absorption box (2), and the energy absorption box (2) is fixed with the second adapter bracket (32) through bonding.

3. The impact beam assembly (10) for a vehicle according to claim 2, wherein the first transfer bracket (31) is provided with a first burring (311) that engages with the crash box (2), and the second transfer bracket (32) is provided with a second burring (321) that engages with the crash box (2).

4. The impact beam assembly (10) for a vehicle according to claim 3, wherein the first burring (311) is fixed to an inner wall surface of one end of the crash box (2), and the second burring (321) is fixed to an inner wall surface of the other end of the crash box (2).

5. The impact beam assembly (10) for a vehicle according to claim 1, further comprising: and the trailer hook (4) is arranged on the anti-collision beam (1) and is bonded and fixed with the anti-collision beam (1).

6. An impact beam assembly (10) for a vehicle according to claim 1, wherein said impact beam (1) comprises:

an inner tubular beam (11), a plurality of inner tubular beams (11) arranged side by side extending transversely to the direction of travel of the vehicle;

the outer tubular beam (12) is internally provided with an accommodating space for accommodating the inner tubular beams (11); wherein

The outer tubular beam (12) and the inner tubular beam (11) are formed by paving a plurality of carbon fiber layers and infiltrating resin, and the outer tubular beam (12) is coated on the outer side of the inner tubular beam (11).

7. An impact beam assembly (10) for a vehicle according to claim 6, wherein a plurality of said inner tubular beams (11) are arranged adjacently in a height direction of the vehicle.

8. An impact beam assembly (10) for a vehicle according to claim 6, wherein a filling foam is further provided in the channel of said inner tubular beam (11).

9. An impact beam assembly (10) for a vehicle according to claim 6, wherein the or each outer tubular beam (12) or each inner tubular beam (11) is formed by bonding a plurality of carbon fibre lay-ups, at least some of which are laid at different angles.

10. An impact beam assembly (10) for a vehicle according to claim 9, wherein a support core is further provided between a plurality of said carbon fibre plies.

11. An impact beam assembly (10) for a vehicle according to claim 1, wherein said energy absorption box (2) comprises:

the energy absorption box comprises an energy absorption box body (21), wherein the energy absorption box body (21) is of a cylindrical structure, and the energy absorption box body (21) is formed by a plurality of layers of first carbon fiber layers;

the fastening layer (215) is arranged on the outer side of at least part of the first carbon fiber layups, and the fastening layer (215) extends along the circumferential direction of the energy absorption box body (21) to hoop part of the first carbon fiber layups.

12. The impact beam assembly (10) for a vehicle according to claim 11, wherein a length of said fastening layer (215) in a direction in which said crash box is impacted is smaller than a length of said crash box body (21) in a direction in which said crash box is impacted.

13. An impact beam assembly (10) for a vehicle according to claim 12, wherein said fastening layer is formed by a second carbon fibre lay-up having a carbon fibre direction orthogonal to the direction in which the energy absorption box (2) is impacted.

14. An impact beam assembly (10) for a vehicle as claimed in claim 13, wherein said carbon fibre lay-up employs a uni-axial continuous fibre lay-up.

15. The impact beam assembly (10) for a vehicle according to any one of claims 11 to 14, wherein said fastening layer (215) is provided at a middle position of said energy absorption box body.