CN118205628A - Front structure of vehicle body and automobile - Google Patents

Abstract

The invention provides a front structure of a vehicle body and an automobile, the front structure of the vehicle body comprises a front wall assembly, a notch is arranged at the bottom of the front wall assembly, the notch is positioned in the middle of the front wall assembly in the left-right direction of the whole vehicle, the bottom of the front wall assembly is also provided with mounting spaces respectively arranged at the left side and the right side of the notch, a front wall lower cross beam transversely arranged below the notch, and two ends of the front wall lower cross beam are connected in the mounting spaces at the two sides. The vehicle body front part structure can increase the overall rigidity of the front surrounding part, reduce the transmission of vibration noise to the passenger cabin by utilizing the increase of the rigidity of the front surrounding structure, improve the NVH performance of the vehicle, and facilitate the transmission of collision force from the front cabin to the rear front floor assembly part, thereby improving the collision safety performance of the vehicle.

Description

Front structure of vehicle body and automobile

Technical Field

The invention relates to the technical field of automobile bodies, in particular to a front structure of an automobile body. The invention also relates to an automobile provided with the automobile body front part structure.

Background

In an automobile body, a front wall assembly is used as a main body structure for separating a front cabin from a passenger cabin, has important influence on NVH (Noise, vibration, harshness, noise, vibration and harshness) in the automobile, and is used as a connecting structure between the front cabin and a front floor, and has important influence on the transmission effect of collision force when the automobile collides, particularly when the automobile collides, but the traditional front wall structure still has the defect of weaker rigidity, so that the NVH performance of the automobile and the safety performance during collision can be influenced.

In the vehicle body front structure, a front cabin assembly connected to the front of the cowl assembly serves as a skeleton structure of the vehicle body front and serves as a load-bearing foundation for a front suspension, a front power assembly, and the like. In addition, when the automobile collides with the front cabin, the front cabin plays an important role in the collision process as a part that comes into contact with the collision object at first. However, the existing front cabin structure is weak in overall structural strength, and insufficient in collision force transmission capability during the front collision of the automobile, so that the improvement of the collision safety of the whole automobile is not facilitated.

Disclosure of Invention

In view of the above, the present invention aims to provide a vehicle body front structure that can improve the rigidity of the front wall assembly, improve the NVH performance of the vehicle, and improve the safety performance at the time of collision.

In order to achieve the above purpose, the technical scheme of the invention is realized as follows:

The utility model provides a front portion structure of automobile body, its includes encloses the assembly before, the bottom of enclosing the assembly before is equipped with the notch, in the left and right directions of whole car, the notch is located enclose the middle part of assembly before, just before enclose the bottom of assembly still be equipped with separately establish the installation space of notch left and right sides, and transversely enclose the lower beam before notch below, before enclose the both ends of lower beam and connect in the installation space of both sides.

Further, the front wall assembly comprises a front wall plate and a front end module mounting plate connected to the front end surface of the front wall plate;

the notch is positioned at the bottom of the front coaming, the front module mounting plate bulges forwards along the front-back direction of the whole vehicle, and a cavity is formed between the front module mounting plate and the front coaming in a surrounding way;

The mounting space on both sides is located front end module mounting panel below, and by preceding bounding wall with front end module mounting panel encloses the constitution, just before enclose the both ends of bottom end rail and connect on the front end module mounting panel.

Further, the front end module mounting plate comprises side plate bodies which are respectively arranged at the left side and the right side of the notch, and a middle connecting plate which is connected between the side plate bodies at the two sides, wherein the middle connecting plate is positioned above the notch, and the side plate bodies at each side are connected with an A column at the same side;

The two sides the lateral plate body and all be formed with between the dash board the cavity, and in both sides lateral plate body department the cavity is interior to be equipped with respectively before enclose reinforcing skeleton, before enclose reinforcing skeleton connects on the dash board, before enclose the both ends of bottom end rail with before enclose reinforcing skeleton links to each other.

Furthermore, the front lower cross beam is made of extruded aluminum profiles, and comprises connecting blocks which are respectively arranged at the left end and the right end, and a cross beam body which is connected between the connecting blocks at the two sides, and the front lower cross beam is connected in the installation space through the connecting blocks; and/or the number of the groups of groups,

The front wall lower beam is provided with a battery pack mounting point, and the battery pack mounting point is a plurality of battery pack mounting points which are arranged on the front wall lower beam at intervals along the left-right direction of the whole vehicle.

Further, the front cabin assembly is connected in front of the front wall assembly along the front-rear direction of the whole vehicle;

the front cabin assembly is provided with a front auxiliary frame, auxiliary frame longitudinal beams which are respectively arranged at the left side and the right side and are connected with the front parts of the front auxiliary frames, auxiliary frame anti-collision beams which are connected with the front ends of the auxiliary frame longitudinal beams at the two sides, and the front auxiliary frame is positioned right in front of the front surrounding lower cross beam.

Further, the front auxiliary frame is connected with the front lower cross beam in an abutting mode, or a preset gap is reserved between the front auxiliary frame and the front lower cross beam.

Further, the front auxiliary frame comprises an auxiliary frame body formed by die casting, the auxiliary frame body is plate-shaped and provided with a front cross beam, a rear cross beam and longitudinal connecting plates which are respectively arranged at the left side and the right side, and the longitudinal connecting plates at the two sides are triangular with gradually enlarged width along the direction pointing to the rear cross beam.

Further, a reinforcing beam is connected between the longitudinal connecting plates at two sides, and second reinforcing ribs which are in an X shape are arranged between the reinforcing beam and the front beam and between the reinforcing beam and the rear beam; and/or the number of the groups of groups,

Along the direction of directional rear cross beam, both sides the distance between the edge that the longitudinal connecting plate is close to one side in the car gradually reduces and sets up, and both sides all be equipped with a plurality of longitudinal connecting plate lightening holes on the longitudinal connecting plate, both sides in the longitudinal connecting plate lightening hole all have at least part be with the homonymy longitudinal connecting plate is close to the rectangular hole of one side in the car parallel.

Further, the front cabin assembly is also provided with front shock towers which are respectively arranged at the left side and the right side, front cabin longitudinal beams which are connected to the front parts of the front shock towers at all sides, and front anti-collision beams which are connected with the front ends of the front cabin longitudinal beams at both sides;

The bottom of the front shock absorber at two sides is connected with the front auxiliary frame, and the rear part of the front shock absorber at two sides is connected to the front wall assembly.

Further, each side of the front shock absorber comprises a shock absorber body which is formed by die casting, wherein the shock absorber body is in an arch shape which is arched upwards and is provided with a front supporting leg, a rear seat body and an upper connecting part which is connected between the front supporting leg and the rear seat body;

The front part of the front supporting leg is connected with the front cabin longitudinal beam, the bottoms of the front supporting leg and the rear seat body are connected with the front auxiliary frame, the top of the rear seat body is detachably connected with the front shock absorber mounting seat, and the rear part of the rear seat body is connected with the front wall assembly.

Further, from the top to the bottom of the front supporting leg, the front supporting leg gradually inclines towards the front of the automobile, and a front cabin cross beam is connected between the front supporting legs at two sides; and/or the number of the groups of groups,

The rear seat body is equipped with the backup pad that backward slope extends towards one side in the car, the backup pad with shock tower body integrated into one piece die casting shaping, just the rear end of backup pad with enclose the assembly links to each other before.

Further, the rear part of the rear seat body is provided with a lapping plate extending backwards and a lapping arm connected with the top of the lapping plate, and the lapping plate and the lapping arm are provided with lapping surfaces lapped on the front wall assembly;

The front wall assembly comprises a front wall assembly, wherein the front wall assembly comprises a front wall assembly and a rear wall assembly, the front wall assembly is arranged on the front wall assembly, the rear wall assembly is arranged on the rear wall assembly, and the front wall assembly is connected with the lap joint arms.

Compared with the prior art, the invention has the following advantages:

According to the front structure of the vehicle body, the mounting spaces respectively arranged at the left side and the right side are arranged at the bottom of the front wall assembly, and the front wall lower cross beams are arranged in the mounting spaces at the two sides, so that the front wall lower cross beams and the front wall assembly with the notch are integrally formed into an annular frame type structure, the integral rigidity of the front wall part can be increased by means of the structural strength of the front wall lower cross beams and the characteristic that the annular structure strength is high, the increase of the rigidity of the front wall structure can be utilized, the transmission of vibration noise to the passenger cabin is reduced, the NVH performance of the vehicle is improved, the transmission of collision force from the front cabin to the rear front floor assembly part is facilitated, and the collision safety performance of the vehicle is improved.

In addition, through setting up front end module mounting panel to enclose between make front end module mounting panel and the dash board and form the cavity, can further increase the overall rigidity of preceding enclose the position, simultaneously, the installation space is enclosed by front end module mounting panel and dash board and is constructed, can be convenient for shaping installation space, and preceding enclose the lower beam and connect on front end module mounting panel, also be convenient for enclose the connection setting of lower beam in preceding enclose the assembly before. Enclose the strengthening frame before setting up in the cavity of lateral part plate body department, can promote the rigidity of enclose the assembly better, and enclose the bottom end rail before making and enclose the strengthening frame and link to each other, can increase the reliability of enclose the bottom end rail connection before. The side panels are attached to the a-pillar and also assist in the transfer of crash forces to the a-pillar location to better transfer dispersion rearward with the a-pillar.

The front lower cross beam is made of extruded aluminum profiles, the characteristics of the extruded aluminum profiles can be utilized, the front lower cross beam is convenient to prepare, the front lower cross beam is light, and meanwhile the structural strength of the front lower cross beam can be guaranteed. The front wall lower cross beam is provided with a battery pack mounting point, so that the battery pack can be conveniently mounted at the bottom of the vehicle body, and the stability of the battery pack in the vehicle body is improved. The front auxiliary frame in the front engine room is positioned right in front of the front lower cross beam, so that the collision force at the front auxiliary frame is transmitted to the front lower cross beam, and the front lower cross beam is transmitted and dispersed to the rear, so that the transmission effect of the collision force is improved. The front auxiliary frame is abutted with the front lower cross beam, so that continuity of collision force transmission is facilitated, a preset gap is formed between the front auxiliary frame and the front lower cross beam, a buffer space can be formed between the front auxiliary frame and the front lower cross beam, and the collision force is prevented from being transmitted to the front lower cross beam during small collision, so that a battery pack at the rear is influenced.

Secondly, the front auxiliary frame is subjected to die casting molding, the characteristics of a die casting molding process can be utilized, the preparation of the front auxiliary frame is facilitated, the preparation cost can be reduced, meanwhile, the characteristic of high die casting structural strength can be utilized, the structural strength of the front auxiliary frame is ensured, and the torsional rigidity of the front part of the vehicle body is improved. Make both sides indulge the connecting plate and be along the triangle-shaped that directional rear cross beam's direction width is progressively big, on the one hand can utilize triangle-shaped structural strength big characteristics, further improve preceding sub vehicle frame structural strength, on the other hand also can utilize the width of indulging the connecting plate progressively big for indulge the connecting plate and possess step by step energy-absorbing ability, so can promote the energy-absorbing effect of indulging the connecting plate, help improving preceding sub vehicle frame to the bearing capacity of collision power, promote whole car collision safety.

The setting of entablature to and all set up the second strengthening rib between entablature and front beam and rear beam, can further improve the structural strength of preceding sub vehicle frame, promote the anterior torsional rigidity of automobile body. The distance between the edges of the longitudinal connecting plates at the two sides, which are close to one side in the vehicle, is gradually reduced, so that collision force can be guided to the middle part of the vehicle body, and the rear middle channels and the like can be fully utilized for transmission and dispersion of the collision force. The weight reducing holes in the longitudinal connecting plates are arranged, so that the weight reduction of the longitudinal connecting plates can be facilitated, at least part of the weight reducing holes are elongated holes parallel to the edge of the longitudinal connecting plates on the same side, which is close to one side in the vehicle, and the weight reduction can be realized, meanwhile, the force transmission continuity of the longitudinal connecting plates is ensured, and the collision force transmission performance of the longitudinal connecting plates is ensured.

In addition, through the connection of preceding shock tower and preceding enclose the assembly, can cooperate preceding sub vehicle frame, form upper and lower two-layer transmission passageway in preceding cabin department, can improve the transmission effect of frontal collision power. Make shock absorber body die casting shaping, can utilize the characteristics of die casting shaping technology, the preparation of preceding shock absorber of being convenient for reduces manufacturing cost to also can utilize die casting structure and the great characteristics of arch structural strength, guarantee the structural strength of preceding shock absorber, promote the torsional rigidity of whole front portion. The shock absorber body comprises preceding landing leg, back pedestal and upper junction portion, can do benefit to the arch structure who realizes the shock absorber body, and the bottom of preceding landing leg and back pedestal all is connected with preceding sub vehicle frame, can guarantee the connection reliability between preceding shock absorber and the preceding sub vehicle frame. The front supporting leg is obliquely arranged, so that the strength of the damping tower body is improved, and meanwhile, the capability of the front damping tower for coping with the frontal collision of the automobile can be improved.

Front shock absorber mount pad can dismantle the connection, and the design demand of different motorcycle types is satisfied to the front shock absorber mount pad of accessible change, helps realizing the platform of shock absorber body is general, and can reduce design and manufacturing cost. Through setting up backward slope extension to enclose the backup pad of being connected before with, can make the car collide the impact force to whole inboard dispersion of car, improve the dispersion transmission effect of impact force, help promoting collision security. The backup pad is integrated with the shock absorber body die casting shaping, the preparation of backup pad of also being convenient for, the reliability of connection between backup pad and the shock absorber body also can be guaranteed simultaneously. The arrangement of the lapping plate and the lapping arm ensures that the lapping plate and the lapping arm are lapped on the front wall through the lapping surface, can increase the contact area between the lapping plate and the front wall, is beneficial to the dispersion of the automobile collision stress at the front wall, and can improve the collision safety. The front wall is provided with the front wall reinforcing piece which is connected with the overlap arms at one side of the passenger cabin, so that the rigidity of the front wall assembly can be improved, the transfer of collision force to the A column position is facilitated, and the collision force transfer effect is improved.

Another object of the present invention is to propose an automobile in which the vehicle body is provided with the vehicle body front structure as described above.

The automobile provided by the invention is provided with the automobile body front part structure, so that the overall rigidity of the front surrounding part can be increased, the increase of the rigidity of the front surrounding structure can be utilized, the transmission of vibration noise to the passenger cabin is reduced, the NVH performance of the automobile is improved, the transmission of collision force from the front cabin to the rear front floor assembly part is facilitated, the collision safety performance of the automobile is improved, and the automobile has good practicability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

Fig. 1 is a schematic view of an arrangement of a front structure of a vehicle body in a whole vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a front wall assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of an installation space according to an embodiment of the present invention;

FIG. 4 is a schematic view of a front end module mounting board according to an embodiment of the present invention;

FIG. 5 is a schematic view illustrating the arrangement of a front wall reinforcement frame according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a front wall reinforcement frame according to an embodiment of the present invention;

Fig. 7 is a schematic structural view of a front lower cross member according to an embodiment of the present invention;

FIG. 8 is a schematic diagram illustrating the cooperation of a front subframe and a front wall assembly according to an embodiment of the present invention;

FIG. 9 is a schematic illustration of the connection of a front subframe to a subframe rail and subframe impact beam according to an embodiment of the present invention;

Fig. 10 is a schematic structural view of a front subframe according to an embodiment of the present invention;

FIG. 11 is a schematic view of the structure of FIG. 10 from another perspective;

FIG. 12 is a top view of the structure shown in FIG. 10;

FIG. 13 is a schematic diagram illustrating the cooperation of a front shock tower and a front wall assembly according to an embodiment of the present invention;

FIG. 14 is a schematic view illustrating the connection of a front subframe to a front shock tower according to an embodiment of the present invention;

FIG. 15 is a schematic view of a front shock absorber mount according to an embodiment of the present invention;

FIG. 16 is a schematic view of the inside of the structure of FIG. 15 from a view angle;

FIG. 17 is a schematic view of the structure of FIG. 15 from a rear side view;

FIG. 18 is a schematic view of a shock absorber body according to an embodiment of the present invention;

FIG. 19 is a schematic view of the structure of the damping tower body according to the embodiment of the present invention from the bottom perspective;

FIG. 20 is a schematic view showing the arrangement of a front wall stiffener according to an embodiment of the present invention;

FIG. 21 is a schematic view of a front shock absorber mount according to an embodiment of the present invention;

FIG. 22 is a schematic view of the structure of FIG. 21 from another perspective;

FIG. 23 is a schematic view of a front structure of a vehicle body from a bottom perspective, according to an embodiment of the present invention;

reference numerals illustrate:

100. A front wall assembly; 200. a front nacelle assembly;

1. A front shock absorber; 2. a front shock absorber mount; 3. a front cabin rail; 4. a front subframe; 5. a front cabin cross member; 6. a dash panel; 7. a front bumper beam; 8. a subframe rail; 9. an auxiliary frame anti-collision beam; 10. a connecting bracket; 11. a front lower cross member; 12. a middle channel; 13. a column A; 14. a threshold beam; 15. a front windshield lower cross member;

101. a front leg; 102. a rear seat body; 103. an upper connection part; 104. a beam connecting seat; 105. a support plate; 106. a support rib; 102a, a faying surface;

1011. a connecting groove; 1012. a stringer fixing hole; 1013. a first weight-reducing groove; 1014. a first reinforcing rib plate; 1015. a front subframe connection hole; 1021. a lapping plate; 1022. a bridging arm; 1023. a front shock absorber mounting seat connecting hole; 1024. a first front wall connection hole; 1025. a second weight-reducing groove; 1026. a second reinforcing rib plate; 1027. a rear subframe connection hole; 1031. an upper connecting portion lightening hole; 1051. a bar-shaped hole; 1052. a second front wall connecting hole;

201. a main body; 202. a mounting arm; 203. a connecting lug; 204. a body connection hole; 205. a front shock absorber mount lightening hole; 2021. a mounting groove;

4a, a vehicle body connecting hole; 401. a front cross member; 402. a rear cross member; 403. a longitudinal connecting plate; 404. a reinforcing beam; 405. a subframe rail connection seat; 406. a front reinforcing structure; 407. a rear reinforcement structure;

4011. A front cross beam groove; 4012. a front first reinforcing rib; 4013. a front connection platform; 4014. reinforcing ribs; 4021. a rear cross beam groove; 4022. a rear first reinforcing rib; 4023. the rear connecting platform; 4031. a longitudinal connecting plate lightening hole; 4041. a stiffening beam weight reduction groove; 4042. a second reinforcing rib;

600. A notch; 601. a front end module mounting plate; 602. an installation space; 603. a front wall reinforcing skeleton; 603a, a skeleton extension arm; 604. a front wall reinforcement; 6011. a side plate body; 6011a, a-pillar connecting arms; 6012. a middle connecting plate;

1101. A connecting block; 1102. a cross beam body;

L, the edge of one side of the longitudinal connecting plate, which is close to the vehicle interior; k. the longitudinal connecting plates at the two sides are close to the distance between the edges of one side in the vehicle.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

In the description of the present invention, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the present invention, unless otherwise specifically defined, the mating components may be connected using conventional connection structures in the art. Moreover, the terms "mounted," "connected," and "connected" are to be construed broadly. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in combination with specific cases.

The invention will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The present embodiment relates to a vehicle body front structure, which is shown in connection with fig. 1 to 3, including a front wall assembly 100, the bottom of the front wall assembly 100 being provided with a notch 600, and the notch 600 being located in the middle of the front wall assembly 100 in the vehicle left-right direction. Meanwhile, the bottom of the front wall assembly 100 is further provided with mounting spaces 602 respectively arranged at the left side and the right side of the notch 600, and a front wall lower beam 11 transversely arranged below the notch 600, and two ends of the front wall lower beam 11 are connected in the mounting spaces 602 at the two sides.

At this time, the mounting spaces 602 respectively provided at the left and right sides are provided at the bottom of the front wall assembly 100, and the front wall lower beam 11 is provided through the mounting spaces 602 at both sides, so that the front wall lower beam 11 and the front wall assembly 100 having the notch 600 integrally form an annular frame structure, and thus the overall rigidity of the front wall portion can be increased by means of the structural strength of the front wall lower beam 11 and by utilizing the characteristic of large annular structural strength. At the same time, with the increase in the rigidity of the front wall structure, the present embodiment can also reduce the transmission of vibration noise to the passenger compartment, and facilitate the transmission of collision force from the front compartment to the rear front floor assembly portion.

Specifically, the front wall assembly 100 of the present embodiment includes the dash panel 6, and the front end module mounting plate 601 attached to the front end surface of the dash panel 6. The top of the dash panel 6 is connected to the cowl cross member 15, and the recess 600 is located at the bottom of the dash panel 6, and preferably, the front module mounting plate 601 is also bulged forward in the front-rear direction of the vehicle, and a cavity is formed between the front module mounting plate 601 and the dash panel 6. In this way, by providing the front end module mounting plate 601 and forming the enclosure between the front end module mounting plate 601 and the dash panel 6 as a cavity, the overall rigidity of the front enclosure position can be further increased.

On the basis of the front end module mounting plate 601, the mounting spaces 602 on the two sides are specifically located below the front end module mounting plate 601 in this embodiment, and are formed by enclosing the front wall plate 6 and the front end module mounting plate 601, and the two ends of the front wall lower beam 11 are also connected to the front end module mounting plate 601. It will be appreciated that having the mounting space 602 defined by the front end module mounting plate 601 and the dash panel 6 facilitates the formation of the mounting space 602 described above, while the front lower cross member 11 is attached to the front end module mounting plate, which also facilitates the attachment of the front lower cross member 11 in the front assembly 100.

In this embodiment, as a preferred embodiment, referring to fig. 4 again, the front module mounting board 601 specifically includes side boards 6011 disposed on the left and right sides of the recess 600, and a middle connection board 6012 connected between the side boards 6011. Wherein, the middle connecting plate 6012 is located above the notch 600, and each side plate 6011 is also connected to the a-pillar 13 on the same side through the a-pillar connecting arm 6011 a. While each side panel 6011 is connected to the a-pillar 13 to facilitate the transfer of the collision force at the front wall to the a-pillar 13 position for better rearward transfer dispersion with the a-pillar 13.

In this embodiment, the above-described cavities are formed between the both side plate bodies 6011 and the dash panel 6, and as further shown in fig. 5, the front wall reinforcing skeletons 603 are also provided in the cavities at the both side plate bodies 6011, respectively. The front wall reinforcing skeletons 603 on both sides are connected to the dash panel 6, and both ends of the front wall lower cross member 11 are also connected to the front wall reinforcing skeletons 603. At this time, by providing the front wall reinforcing frame 603 in the cavity at the side plate 6011, the rigidity of the front wall assembly 100 can be better improved, so that the front wall lower cross member 11 is connected with the front wall reinforcing frame 603, which can further increase the reliability of the connection of the front wall lower cross member 11.

It should be noted that, in conjunction with the illustration of fig. 6, the front wall reinforcing frame 603 may be formed by, for example, casting aluminum, so as to ensure the structural strength of the front wall reinforcing frame 603, and also facilitate the light-weight design thereof. However, instead of die casting, it is of course possible to use extruded aluminum for the cowl reinforcement frame 603, or welded sheet metal. Meanwhile, corresponding to the arrangement of the a-pillar connecting arm 6011a on each side plate 6011, a frame extension arm 603a is also provided on each front wall reinforcing frame 603, and the frame extension arm 603a is located inside the a-pillar connecting arm 6011a and is also connected with the a-pillar 13, so as to better promote the arrangement effect of the front wall reinforcing frame 603.

In this embodiment, as a preferred implementation manner, the front lower beam 11 may be made of an extruded aluminum profile, for example, and the front lower beam 11 is made of an extruded aluminum profile, so that the characteristics of the extruded aluminum profile may be utilized, so that the preparation of the front lower beam 11 is facilitated, the weight reduction of the front lower beam 11 is facilitated, and meanwhile, the structural strength of the front lower beam 11 may be ensured. Further, in a specific structure, as shown in fig. 7, as an exemplary structure, the front lower cross member 11 of the present embodiment includes the connection blocks 1101 provided at both left and right ends, and the cross member 1102 connected between the connection blocks 1101 at both sides, the connection blocks 1101 at both ends being connected to the middle cross member 1102 by welding, and further, the front lower cross member 11 is also connected in the above-mentioned installation space 602 specifically by the connection blocks 1101.

As a preferred embodiment, the present embodiment may provide the battery pack mounting points on the front lower cross member 11, and further, the above battery pack mounting points may be provided in a plurality of the front lower cross member 11 arranged at intervals in the right-left direction of the whole vehicle. At this time, the extruded aluminum profile is adopted based on the front lower cross member 11, and each battery pack mounting point may be, for example, a threaded sleeve fixed in the front lower cross member 11. And through set up battery package mounting point on enclose the lower beam 11 before, it can be convenient for the installation of battery package in the automobile body bottom to can improve the stability that the battery package set up in the automobile body.

Still referring to fig. 1, and in conjunction with fig. 8 and 9, as a preferred embodiment, the vehicle body front structure of the present embodiment further includes a front cabin assembly 200 connected in front of the cowl assembly 100 in the front-rear direction of the entire vehicle. The front cabin assembly 200 includes a front subframe 4, subframe rails 8 connected to the front portions of the front subframe 4 and provided on both left and right sides, and subframe bumper beams 9 connected to the front ends of the side subframe rails 8, and the front subframe 4 is also specifically positioned directly in front of the front lower cross member 11.

At this time, the front subframe 4 in the front cabin assembly 200 is positioned right in front of the front lower cross member 11, which is advantageous in that the collision force at the front subframe 4 is transmitted to the front lower cross member 11, so that the transmission dispersion of the collision force is transmitted to the rear through the front lower cross member 11, and the transmission effect of the collision force can be improved.

In addition, in the embodiment, the front subframe 4 and the front lower cross member 11 may be abutted to each other, or a predetermined gap may be provided between the front subframe 4 and the front lower cross member 11. Like this, preceding sub vehicle frame 4 and preceding enclose the lower beam 11 butt, help the continuity of collision force transmission, and set up the clearance of predetermineeing between preceding sub vehicle frame 4 and the preceding enclose lower beam 11, then can form the buffering space between preceding sub vehicle frame 4 and preceding enclose lower beam 11, avoid the collision force transmission to preceding enclose lower beam 11 when less collision, influence the battery package at rear. The preset gap is generally controlled within 5 mm.

With continued reference to fig. 10 to 12, in a specific structure, as a preferred embodiment, the front subframe 4 of the present embodiment includes a die-cast subframe body having a plate shape and having a front cross member 401, a rear cross member 402, and longitudinal connecting plates 403 provided separately on the left and right sides. Meanwhile, the two ends of the front beam 401 and the rear beam 402 are respectively provided with a connecting structure connected with the front shock absorber 1, and the longitudinal connecting plates 403 on the two sides are respectively triangular with gradually larger width along the direction pointing to the rear beam 402.

At this time, the front auxiliary frame 4 is made to be die-cast and formed, the characteristics of the die-cast forming process can be utilized, the preparation of the front auxiliary frame 4 is facilitated, the preparation cost can be reduced, the characteristic of high die-cast structural strength can be utilized, the structural strength of the front auxiliary frame 4 is ensured, and the torsional rigidity of the front part of the vehicle body can be further improved.

Of course, the longitudinal connecting plates 403 on two sides are in a triangle with gradually larger width along the direction pointing to the rear cross beam, so that on one hand, the characteristic of large structural strength of the triangle can be utilized to further improve the structural strength of the front auxiliary frame 4, and on the other hand, the width of the longitudinal connecting plates 403 can be also utilized to gradually larger the width of the longitudinal connecting plates 403, so that the longitudinal connecting plates 403 have gradual energy absorbing capability, the energy absorbing effect of the longitudinal connecting plates 403 can be improved, and the bearing capability of the front auxiliary frame 4 on collision force can be improved.

More specifically, as a preferred embodiment, grooves extending in the left-right direction of the entire vehicle are provided in both the front cross member 401 and the rear cross member 402, and first reinforcing ribs in the form of "X" are provided in the grooves. So, through set up the recess on front beam 401 and rear beam 402, can reduce the weight of front beam 401 and rear beam 402, do benefit to lightweight design, set up first strengthening rib in the recess simultaneously, also can guarantee the structural strength of front beam 401 and rear beam 402 when realizing subtracting the heavy.

For convenience of description, the groove on the front beam 401 is referred to as a front beam groove 4011, the first stiffener in the front beam groove 4011 is referred to as a front first stiffener 4012, the groove on the rear beam 402 is referred to as a rear beam groove 4021, and the first stiffener in the rear beam groove 4021 is referred to as a rear first stiffener 4022. The front beam groove 4011 and the rear beam groove 4021, and the front first stiffener 4012 and the rear first stiffener 4022 are all formed by integral die casting when the front subframe 4 is manufactured, and the front first stiffener 4012 and the rear first stiffener 4022 are all arranged in sequence along the length direction of the grooves.

In addition, it should be noted that, instead of providing the above-mentioned grooves on both the front beam 401 and the rear beam 402 and providing the first reinforcing ribs in the grooves, it is of course also possible to provide the above-mentioned grooves on only one of the front beam 401 and the rear beam 402 and correspondingly provide the first reinforcing ribs in the grooves, depending on the specific structural shapes of the front beam 401 and the rear beam 402.

As a preferred embodiment, the reinforcement beam 404 is also connected between the longitudinal webs 403 on both sides, and a second reinforcement bar 4042 likewise in the form of an "X" is arranged between the reinforcement beam 404 and the front beam 401 and between the reinforcement beam 404 and the rear beam 402. Through the arrangement of the reinforcing beam 404 and the arrangement of the second reinforcing ribs 4041 between the reinforcing beam 404 and the front and rear beams 401 and 402, the structural strength of the front subframe 4 can be further improved, and the torsional rigidity of the front part of the vehicle body can be improved.

The reinforcement beam 404 may be integrally die-cast into the front subframe 4 when the front subframe 4 is manufactured, and at the same time, preferably, the reinforcement beam weight-reducing groove 4041 may be further formed in the reinforcement beam 404. The part of the bottom of the stiffening beam weight-reducing groove 4041 can be further designed to be hollowed out, and the stiffening beam weight-reducing groove 4041 is arranged on the stiffening beam 404, so that the weight of the stiffening beam 404 is reduced, and the lightweight design of the stiffening beam is facilitated.

In this embodiment, as a preferred embodiment, the distance k between the side longitudinal webs 403 and the edge L on the vehicle interior side is set smaller in the direction toward the rear cross member 402, that is, from front to rear in the front-rear direction of the vehicle. In this way, it is also possible to incline the edges L of the two-sided longitudinal webs 403 close to the vehicle interior side, and thus to make the two-sided longitudinal webs 403 in particular right-angled triangles. The distance k between the two longitudinal connecting plates 403 near the edge L of one side in the vehicle is gradually reduced, so that the collision force can be guided to the middle part of the vehicle body, the rear middle channel and the like can be fully utilized for transmitting and dispersing the collision force, and the collision safety of the whole vehicle is improved.

In this embodiment, the front end surface of the front cross member 401 is also provided with sub-frame rail connecting seats 405 separately provided on the left and right sides, each sub-frame rail connecting seat 405 may be provided with a "U" structure, for example, and connecting holes are provided on two opposite side walls thereof for connecting the sub-frame rails 8. At the same time, it is preferable that each sub-frame rail connecting seat 405 is also disposed directly opposite to the front end of the ipsilateral side rail connecting plate 403 in the front-rear direction of the vehicle. At this time, through the arrangement of the subframe rail connecting seat 405 on the front cross member 401, connection between the front subframe 4 and the subframe rail 8 can be facilitated, and meanwhile, each subframe rail connecting seat 405 and the longitudinal connecting plate 403 on the same side are opposite to each other, which is also beneficial to transfer of collision force borne by the subframe anti-collision beam 9 and the subframe rail 8 to the rear through the longitudinal connecting plate 403, and transfer dispersion of the collision force of the automobile.

As a preferred implementation manner, in this embodiment, a plurality of longitudinal connecting plate lightening holes 4031 are provided on each of the longitudinal connecting plates 403 on both sides, so as to facilitate the lightening of the longitudinal connecting plates 403 and the lightening design of the whole front subframe 4.

In addition, in this embodiment, on the basis that the longitudinal link plate lightening holes 4031 are provided and the edges L of the longitudinal links 403 near one side of the vehicle are inclined, at least part of the longitudinal link plate lightening holes 4031 in the longitudinal link plate lightening holes 4031 on both sides are elongated holes parallel to the edges L of the longitudinal links 403 on the same side near one side of the vehicle. In this way, at least part of the longitudinal connecting plate lightening holes 4031 on each longitudinal connecting plate 403 are elongated holes parallel to the edge L of the same side longitudinal connecting plate 403, which is close to the inner side of the vehicle, so that the longitudinal connecting plates 403 can lighten weight, and meanwhile, the force transmission continuity of the longitudinal connecting plates 403 is ensured, and the collision force transmission performance of the longitudinal connecting plates 403 is further ensured.

In this embodiment, as a preferred embodiment, the front beam 401 and the rear beam 402 are provided with connection platforms at both ends, and the connection platforms at each end are also provided higher than the vertical connection plate 403 in the vertical direction of the whole vehicle, and at the same time, the connection platforms at both ends of the front beam 401 and the rear beam 402 are also provided with vehicle body connection holes 4a, respectively, and the connection mechanism connected to the front shock absorber 1 is constituted by the vehicle body connection holes 4 a.

At this time, each of the connection platforms is provided higher than the longitudinal connection plate 403, which can facilitate connection between the front subframe 4 and the vehicle body, that is, between the front subframe 4 and the front shock absorber 1 described below. Of course, the connection to the front shock absorber 1 through the vehicle body connection hole 4a has a simple structure and is advantageous in connection between the front subframe 4 and the front shock absorber 1 described below.

For convenience of description, the present embodiment refers to the connection platforms at both ends of the front cross member 401 as the front connection platform 4013, and refers to the connection platforms at both ends of the rear cross member 401 as the rear connection platform 4023. Moreover, in order to improve the structural strength of each connection platform and to ensure the reliability of the connection between the front subframe 4 and the front shock absorber 1, the present embodiment is provided with reinforcing ribs 4014 on the inner side of each front connection platform 4013, and at the same time, a front reinforcing structure 406 is provided between the longitudinal connection plate 403 and the front connection platform 4013, and a rear reinforcing structure 407 is provided between the longitudinal connection plate 403 and the rear connection platform 4023. The front reinforcing structure 406 and the rear reinforcing structure 407 are integrally formed at the edge of the side of the longitudinal connecting plate 403 near the vehicle exterior.

In the specific preparation, the front subframe 4 of the present embodiment may be formed by, for example, die casting with cast aluminum. In addition, the connection point for the front suspension on the front subframe 4 and the connection point for the power assembly when the front drive form is adopted can be correspondingly arranged on the subframe body according to the installation requirements of the front suspension, the power assembly and the like.

As a preferred embodiment, the front cabin assembly 200 of the present embodiment, still shown in fig. 1 in combination with fig. 13 and 14, further has front shock towers 1 provided separately on the left and right sides, front cabin stringers 3 connected to the front portions of the front shock towers 1 on each side, and front impact beams 7 connected to the front ends of the front cabin stringers 3 on both sides. Meanwhile, the bottoms of the front shock towers 1 on both sides are connected with the front subframe 4, and the rear parts of the front shock towers 1 on both sides are connected to the front wall assembly 100.

In a specific structure, as shown in fig. 15 to 19, as a preferred implementation manner, the front shock absorber 1 on each side of the embodiment includes a shock absorber body formed by die casting, the shock absorber body is in an arch shape that arches upward, a front shock absorber mounting seat 2 is provided at the top of the shock absorber body, and the bottom of the shock absorber body is connected with a front subframe 4.

The front shock absorber 1 is made to be in an arch structure through die casting, so that the characteristics of a die casting process can be utilized, the front shock absorber can be conveniently manufactured, the manufacturing cost is reduced, the die casting structure can be utilized simultaneously, the arch structure of the front shock absorber 1 and the annular structure formed by connecting the front shock absorber 1 with the front auxiliary frame 4 are high in strength, the structural strength of the front shock absorber is guaranteed, and the effect of improving the torsional rigidity of the front part of the whole vehicle is achieved.

In a specific structure, as a preferred embodiment, the front shock absorber 1 of the present embodiment has a front leg 101, a rear seat 102, and an upper connecting portion 103 connecting the front leg 101 and the rear seat 102. The front support legs 101 and the rear seat body 102 are arranged at intervals along the front-rear direction of the whole vehicle, and the front support legs 101 are close to one side of the vehicle head, and the upper connecting parts 103 are integrally connected between the top parts of the front support legs 101 and the rear seat body 102, so that the front support legs 101, the upper connecting parts 103 and the rear seat body 102 are sequentially connected to form the upper arch front shock absorber tower 1.

At this time, it can be understood that the front shock absorber 1 is made up of the front leg 101, the rear seat 102 and the upper connecting portion 103, which facilitates the realization of the arch structure of the front shock absorber 1, and at the same time, facilitates the connection with the front cabin longitudinal beam 3 and the front wall assembly 100. Furthermore, the bottoms of the front leg 101 and the rear seat 102 are connected to the front subframe 4, which can ensure the connection reliability between the front shock tower 1 and the front subframe 4.

Further, the present embodiment is connected to the front cabin rail 3 at the front of the front leg 101, the bottoms of the front leg 101 and the rear seat 102 are respectively connected to the front subframe 4, and, by the connection between the bottoms of the front leg 101 and the rear seat 102 and the front subframe 4, also as shown in fig. 14, the respective front shock absorber 1 and front subframe 4 are connected to form a ring-shaped structure, so that the overall rigidity between the front shock absorber 1 and front subframe 4 can be improved. A first front wall connection portion connecting the front wall 6 is provided at the rear portion of the rear seat 102 so that the front shock absorber 1 is connected to the rear wall 6. The front shock absorber mount 2 is specifically located at the top of the rear housing 102.

As a preferred embodiment, the front leg 101 is also arranged to be gradually inclined toward the front of the automobile from the top to the bottom of the front leg 101 in this embodiment. At this time, through the slope setting of preceding landing leg 101, the arch structure of shock tower 1 before the shaping of can being convenient for helps promoting the intensity of shock tower 1 before, and simultaneously, the preceding landing leg 101 of slope arrangement also is favorable to the frontal collision force to the transmission of rear, and then also can improve the ability that the shock tower should the car frontal collision before, promotes whole car collision security.

On the other hand, in the front shock absorber 1 composed of the front leg 101, the rear base 102 and the upper connecting portion 103, as a preferred embodiment, the front leg 101 is provided with a connecting groove 1011 on the front end surface thereof, and a side member fixing hole 1012 provided on the wall of the connecting groove 1011 for connecting the front cabin side member 3. The girder fixing holes 1012 are a plurality of grooves distributed on different sides of the connecting groove 1011, and each girder fixing hole 1012 penetrates the front leg 101.

When the front cabin longitudinal beam 3 is connected, the rear end of the front cabin longitudinal beam 3 is inserted into the connecting groove 1011, and then the fixing bolts are penetrated through the longitudinal beam fixing holes 1012, so that the front cabin longitudinal beam 3 and the front shock absorber 1 are fastened together through the fixing bolts. It can be understood that the front nacelle side frame 3 can be easily connected to the front nacelle side frame 3 by the connecting groove 1011 provided in the front leg 101 and the side frame fixing hole 1012 provided in the wall of the connecting groove 1011, and the connecting effect between the front shock tower and the front nacelle side frame 3 can be improved by fastening the fixing bolts provided in the side frame fixing holes 1012.

Also as a preferred embodiment, in the present embodiment, a front subframe connection hole 1015 is provided at the bottom of the front leg 101, and a rear subframe connection hole 1027 is provided at the bottom of the rear seat 102. At this time, the front leg 101 and the rear seat 102 are connected to the front subframe 4 through the subframe connection hole, which has the characteristics of simple structure and convenient connection with the front subframe 4. In addition, in the specific implementation, the front subframe connection hole 1015 and the rear subframe connection hole 1027 are arranged in a plurality of spaced arrangement, and may be screw holes.

When the front subframe 4 is assembled, each front subframe connecting hole 1015 corresponds to the corresponding vehicle body connecting hole 4a on the front connecting platform 4013 one by one, each rear subframe connecting hole 1027 corresponds to the corresponding vehicle body connecting hole 4a on the rear connecting platform 4023 one by one, and the front subframe 4 and the front shock absorber towers 1 on two sides can be fixedly connected together by connecting bolts penetrating through the vehicle body connecting holes 4a and being in threaded connection with each front subframe connecting hole 1015 and the rear subframe connecting hole 1027.

In the present embodiment, as a preferred embodiment, a cross member connection seat 104 for connecting the front cabin cross member 5 is also provided on the vehicle interior facing side of the front leg 101. The beam connecting seat 104 may be integrally formed on the side end surface of the front leg 101 when the front shock absorber 1 is prepared, and the beam connecting seat 104 may be provided in, for example, a "U" type structure, with connecting holes provided on both opposite side walls thereof and a bottom wall located therebetween.

In this way, with reference to fig. 1 and 13, the end of the front cabin cross beam 5 extending in the left-right direction of the whole vehicle is embedded in the cross beam connecting seat 104, and then the front cabin cross beam 5 and the cross beam connecting seat 104 can be firmly connected by screws penetrating through the connecting holes on the side walls and the bottom wall. In this embodiment, it can be understood that, by the arrangement of the above beam connection base 104, the front cabin beam 5 is connected between the front shock towers on both sides, which can improve the torsional rigidity of the front cabin position by using the supporting and reinforcing functions of the front cabin beam 5, so as to help to improve the stability of the whole vehicle.

In this embodiment, as a preferred implementation manner, the first front wall connection portion specifically includes a first front wall connection hole 1024 provided on the rear end surface of the rear seat 102. At this time, the first front wall connecting holes 1024 are arranged at intervals, and the first front wall connecting portion adopts the first front wall connecting holes 1024, which also has the advantages of simple structure and convenient connection with the front wall assembly 100. In the specific connection, the bolts disposed on the front wall assembly 100 and screwed into the respective first front wall connection holes 1024 can achieve reliable connection between the front wall assembly 100 and the front shock absorber 1.

In the preferred embodiment, a rear overlap plate 1021 extending rearward and an abutment arm 1022 connected to the top of the overlap plate 1021 are also provided at the rear of the rear seat 102, on the basis that the rear of the front shock absorber 1 is connected to the front wall assembly 100. Moreover, the abutment plate 1021 and the abutment arm 1022 are respectively provided with an abutment surface 102a which abuts against the front end module mounting plate 601 in the front wall assembly 100, so that the overlap plate 1021 and the abutment arm 1022 are further arranged and are overlapped on the front wall assembly 100 through the overlap surface 102a, the contact area between the rear part of the front shock absorber and the front wall assembly 100 can be increased, the dispersion of the collision stress of the automobile at the front wall assembly 100 is facilitated, the stress deformation at the front wall assembly 100 is reduced, and the collision safety of the whole automobile can be improved.

In addition, as a preferred embodiment, in addition to the provision of the overlap plate 1021 and the overlap arm 1022 in each front shock absorber 1, as shown in fig. 20, a cowl reinforcement 604 is also provided in the cowl assembly 100 of the present embodiment, the cowl reinforcement 604 being located on the side of the dash panel 6 facing the vehicle interior, and one of the cowl reinforcements 604 being provided on each of the left and right sides of the dash panel 6, and each of the side cowl reinforcements 604 being provided in engagement with the same-side overlap arm 1022 in the front-rear direction of the entire vehicle.

The engagement between each front wall stiffener 604 and the same-side bridging arm 1022 is configured such that the projections of the front wall stiffener 604 and the same-side bridging arm 1022 in the front-rear direction of the entire vehicle overlap at least partially. And through setting up the preceding wall reinforcement 604 that links up the setting with the overlap arm in preceding coaming 6 towards passenger cabin one side, not only can improve the rigidity of preceding wall assembly 100 through preceding wall reinforcement 604's reinforcement effect, simultaneously, it also helps the transmission of collision force to A post 13 position, promotes collision force transmission effect.

In this embodiment, it should be further noted that, in the specific implementation, the front shock absorber 1 formed by die casting may be made of cast aluminum, for example, which not only can ensure the structural strength of the front shock absorber 1, but also has a good weight-reducing effect. Moreover, on the basis of the die-casting forming of the front shock absorber 1, as a preferred implementation manner, the embodiment can further provide a tower body weight-reducing hole or a tower body weight-reducing groove and other weight-reducing structures on the front supporting leg 101, the rear seat body 102 and the upper connecting portion 103, and meanwhile, a reinforcing rib plate can be also provided in the tower body weight-reducing hole or the tower body weight-reducing groove, so that the front shock absorber 1 is facilitated to reduce weight, the lightweight design of the front shock absorber is facilitated, and meanwhile, the structural strength of the front shock absorber 1 can be ensured.

In detail, as an exemplary implementation of the weight-reducing structure, for example, the present embodiment may provide a plurality of first weight-reducing grooves 1013 on the front leg 101, and provide a first reinforcing rib 1014 in one of the first weight-reducing grooves 1013, or in a plurality of first weight-reducing grooves 1013. A second weight-reducing groove 1025 may be provided on the rear housing 102, and a second reinforcing rib 1026 may be provided in the second weight-reducing groove 1025. The upper connection portion 103 may be provided with an upper connection portion weight reducing hole 1031.

The first weight-reducing groove 1013, the second weight-reducing groove 1025 and the upper connecting portion weight-reducing hole 1031 may be provided in plural numbers, and the reinforcing rib plate may be optionally provided therein or not, so that the structural strength of the front shock-absorbing tower 1 may be ensured. Meanwhile, in addition to the first weight reduction groove 1013 provided on the front leg 101, the second weight reduction groove 1025 provided on the rear housing 102, and the upper connection portion weight reduction hole 1031 provided in the upper connection portion 103, of course, the weight reduction structure thereon may be arbitrarily selected between the tower weight reduction hole and the tower weight reduction groove according to the structural shapes of the front leg 101, the rear housing 102, and the upper connection portion 103, etc., without limitation thereto.

As a preferred embodiment, the present embodiment is also provided with a support plate 105 extending obliquely rearward on the side of the front shock absorber 1 facing the vehicle interior. The support plate 105 is integrally die-cast with the front shock absorber 1, and a second front wall connecting portion connected to the front wall 6 is provided at the rear end of the support plate 105.

At this time, the second front wall connection portion may employ a plurality of second front wall connection holes 1052 provided at the rear end of the support plate 105, and each of the second front wall connection holes 1052 may preferably also be provided as a screw hole to achieve connection between the support plate 105 and the front end module mounting plate 601 in the front wall assembly 100 by means of connection bolts. The supporting plate 105 which is obliquely extended backward and connected with the front wall assembly 100 can enable the front collision force of the automobile to be dispersed to the inner side of the whole automobile when the automobile collides, so as to be transmitted to the middle channel position positioned in the middle of the whole automobile, thereby improving the collision force dispersion and transmission effect and being beneficial to the improvement of the collision safety of the whole automobile.

In addition, by making the above-described support plate 105 integrally die-cast with the front shock absorber 1, it is understood that it also facilitates the preparation of the support plate 105, while also ensuring the connection reliability between the support plate 105 and the front shock absorber 1.

On the basis of the provision of the support plate 105, as a preferred embodiment, the present embodiment may further provide strip-shaped holes 1051 arranged in the extending direction of the support plate 105 on the support plate 105. At this time, the strip-shaped holes 1051 may be a plurality of strips arranged at intervals along the height direction of the support plate 105, and by providing the strip-shaped holes 1051 on the support plate 105, it is not only beneficial to weight reduction of the support plate 105, but also can ensure the collision force transmission performance of the support plate 105 by arranging the strip-shaped holes 105 along the extending direction of the support plate 105.

In this embodiment, as a preferred embodiment, in order to secure the installation effect of the support plate 105, a support rib 106 is further connected between the support plate 105 and the front shock absorber 1. The supporting rib 106 is specifically located at the rear of the supporting plate 105, and is formed in an included angle area formed by the supporting plate 105 and the rear seat body 102, and the supporting rib 106 is also formed by integral die casting when the front shock absorber 1 is manufactured.

Through setting up above-mentioned supporting rib 106 between backup pad 105 and preceding shock absorber 1, it can utilize the supporting role of supporting rib 106, improves the stability that backup pad 105 set up, and then can guarantee the power transmission effect of backup pad 105 to promote whole car collision security.

In this embodiment, as a preferred embodiment, the front shock absorber mounting base 2 is detachably connected to the front shock absorber 1. Like this, can dismantle the connection through preceding bumper shock absorber mount pad 2, alright satisfy the design demand of different motorcycle types through the preceding bumper shock absorber mount pad 2 of change, and then help when automobile design and manufacturing, realize the platformization general of preceding shock absorber tower 1, can reduce design and manufacturing cost.

On the basis of the detachable arrangement of the front shock absorber installation seat 2, in a specific implementation, for example, a plurality of front shock absorber installation seat connection holes 1023 may be arranged at the top of the front shock absorber 1, each front shock absorber installation seat connection hole 1023 is provided as a threaded hole, and the front shock absorber installation seat 2 can be fixedly connected to the front shock absorber 1 through a connection bolt screwed with each front shock absorber installation seat connection hole 1023.

In addition, in the embodiment, as a preferred embodiment, the front damper mounting base 2 of the present embodiment may be die-cast, and for example, the front damper mounting base 2 may be made of cast aluminum. And through making preceding bumper shock absorber mount pad 2 die casting shaping, it can understand that it also can be convenient for the preparation of preceding bumper shock absorber mount pad 2, also can guarantee the structural strength of preceding bumper shock absorber mount pad 2, simultaneously, when adopting cast aluminum material, also can do benefit to its lightweight design.

It should be noted that the front shock absorber mount 2 according to the present embodiment is die-cast, and an exemplary structure thereof can be shown in fig. 21 and 22, and at this time, the front shock absorber mount 2 specifically includes a main body 201, two mounting arms 202 arranged side by side connected to the top of the main body 201, and a plurality of connection lugs 203 at the bottom of the main body 201.

In view of the die-casting of the front shock absorber mount 2, the front shock absorber mount weight-reducing hole 205 may be provided in the main body 201 to facilitate weight reduction of the front shock absorber mount 2 and further facilitate weight reduction design thereof. A mounting groove 2021 is formed between two mounting arms 202 arranged side by side, and mounting holes are generally provided on the two mounting arms 202, so that the top of the front shock absorber is positioned in the mounting groove 2021, and the front shock absorber is mounted between the two mounting arms 202.

In addition, body connection holes 204 are formed in each connection lug 203, and when the front damper mounting seat 2 is placed on the top of the damper body 1, the body connection holes 204 are arranged in one-to-one correspondence with the front damper mounting seat connection holes 2023 on the top of the front damper 1 and are aligned with each other, so that the front damper mounting seat 2 can be mounted on the front damper 1 by connecting bolts penetrating through the body connection holes 204 and being screwed with the front damper mounting seat connection holes 2023. Of course, when the disassembly is needed, the connecting bolts are screwed down.

In the present embodiment, the front cabin side member 3 and the front impact beam 7 may be of a conventional beam body structure in the existing automobile body, and preferably, the front cabin side member 3 and the front impact beam 7, and the front cabin cross member 5, the sub-frame side member 8, the sub-frame impact beam 9, and the like may be made of extruded aluminum profiles. At this time, the beam body structure is made of extruded aluminum profiles, so that the beam body structure has the advantages of high structural strength and light weight, and meanwhile, the beam body structure can be conveniently prepared, and the preparation cost can be effectively reduced.

In the vehicle body front structure of the present embodiment, based on the above structural design, when a collision, particularly a frontal collision, occurs in the vehicle, in conjunction with the illustration shown in fig. 23, the collision force can be transmitted rearward through the upper force transmission path formed by the front impact beam 7, the front cabin assemblies 3 on both sides, and the front shock absorber towers 2 on both sides, and the lower force transmission path formed by the subframe impact beam 9, the subframe stringers 8 on both sides, and the front subframe 4. At the same time, by the connection of the front subframe 4, the front cabin cross member 5, etc., the collision force can be transmitted in the vehicle left-right direction at the front cabin position.

The collision force transmitted backward is transmitted to the front wall assembly 100 through the upper and lower layer transmission channels, at this time, a part of the collision force is transmitted to the rear A column 13, the threshold beam 14 and the like through the front wall assembly 100, and further transmitted and dispersed through the A column 13 and the threshold beam 14, and a part of the collision force is transmitted to the front wall lower cross beam 11 through the front subframe 4 and the front wall assembly 100, particularly the supporting plate 105 at the inner side of each front shock absorber 1, and the middle channel 12 at the middle of the vehicle body, and transmitted and dispersed backward through the front wall lower cross beam 11 and the middle channel 12. So, this embodiment can realize the effective transmission dispersion to collision force to reduce the injury that the collision caused, promote whole car collision security.

According to the front structure of the automobile body, the mounting spaces 602 which are respectively arranged at the left side and the right side are arranged at the bottom of the front wall assembly 100, and the front wall lower cross beam 11 is arranged through the mounting spaces 602 at the two sides, so that the front wall lower cross beam 11 and the front wall assembly 100 with the notch 600 integrally form an annular frame structure, the integral rigidity of the front wall part can be increased by means of the structural strength of the front wall lower cross beam 11 and the characteristic that the annular structural strength is high, the increase of the rigidity of the front wall structure can be utilized, the transmission of vibration noise to the passenger cabin is reduced, the NVH performance of an automobile is improved, the transmission of collision force from the front cabin to the rear front floor assembly part is facilitated, the collision safety performance of the automobile is improved, and the front structure has good practicability.

Example two

The present embodiment relates to an automobile in which the vehicle body is provided with the vehicle body front structure as described above.

The automobile of this embodiment can increase the overall rigidity of enclose the position before through setting up above-mentioned automobile body front portion structure to the increase of enclose structural rigidity before usable reduces the transmission of vibration noise to passenger cabin, promotes automobile NVH performance, and does benefit to the collision force that comes from cabin department to the transmission of rear front floor assembly position before, promotes automobile collision security performance, and has fine practicality.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (13)

1. A vehicle body front structure, characterized in that:

Including preceding enclose assembly (100), the bottom of enclose assembly (100) is equipped with notch (600), in the direction about whole car, notch (600) are located the middle part of enclose assembly (100) before, just the bottom of enclose assembly (100) still is equipped with separately establishes in the installation space (602) of notch (600) left and right sides, and horizontal enclose under beam (11) in the front of notch (600) below, the both ends of enclose under beam (11) before connect in installation space (602) of both sides.

2. The vehicle body front structure according to claim 1, characterized in that:

the front wall assembly (100) comprises a front wall plate (6) and a front end module mounting plate (601) connected to the front end surface of the front wall plate (6);

the notch (600) is positioned at the bottom of the front panel (6), the front module mounting plate (601) bulges forwards along the front-back direction of the whole vehicle, and a cavity is formed between the front module mounting plate (601) and the front panel (6) in an enclosing way;

the mounting space (602) on both sides is located front end module mounting board (601) below, and by dash board (6) with front end module mounting board (601) enclose the configuration and form, just front end module mounting board (601) is connected at the both ends of front end lower beam (11).

3. The vehicle body front structure according to claim 2, characterized in that:

The front end module mounting plate (601) comprises side plate bodies (6011) which are respectively arranged at the left side and the right side of the notch (600), and a middle connecting plate (6012) which is connected between the side plate bodies (6011) at the two sides, wherein the middle connecting plate (6012) is positioned above the notch (600), and the side plate bodies (6011) at each side are connected with an A column (13) at the same side;

The two sides of the front wall plate are respectively provided with a cavity between the side plate body (6011) and the front wall plate (6), front wall reinforcing frameworks (603) are respectively arranged in the cavities at the side plate body (6011) at the two sides, the front wall reinforcing frameworks (603) are connected to the front wall plate (6), and two ends of the front wall lower cross beam (11) are connected with the front wall reinforcing frameworks (603).

4. The vehicle body front structure according to claim 1, characterized in that:

The front lower beam (11) is made of extruded aluminum profiles, the front lower beam (11) comprises connecting blocks (1101) which are respectively arranged at the left end and the right end, and a beam body (1102) which is connected between the connecting blocks (1101) at the two sides, and the front lower beam (11) is connected in the installation space (602) through the connecting blocks (1101); and/or the number of the groups of groups,

The front lower cross beam (11) is provided with battery pack mounting points which are arranged at intervals along the left-right direction of the whole vehicle on the front lower cross beam (11).

5. The vehicle body front structure according to any one of claims 1 to 4, characterized in that:

the front cabin assembly (200) is connected in front of the front wall assembly (100) along the front-rear direction of the whole vehicle;

the front cabin assembly (200) is provided with a front auxiliary frame (4), auxiliary frame longitudinal beams (8) which are respectively arranged at the left side and the right side and are connected with the front part of the front auxiliary frame (4), and auxiliary frame anti-collision beams (9) which are connected with the front ends of the auxiliary frame longitudinal beams (8) at the two sides, and the front auxiliary frame (4) is positioned right in front of the front surrounding lower cross beam (11).

6. The vehicle body front structure according to claim 5, characterized in that:

The front auxiliary frame (4) is connected with the front lower cross beam (11) in an abutting mode, or a preset gap is reserved between the front auxiliary frame (4) and the front lower cross beam (11).

7. The vehicle body front structure according to claim 5, characterized in that:

The front auxiliary frame (4) comprises an auxiliary frame body which is formed by die casting, the auxiliary frame body is plate-shaped and is provided with a front cross beam (401), a rear cross beam (402) and longitudinal connecting plates (403) which are respectively arranged at the left side and the right side, and the longitudinal connecting plates (403) at the two sides are triangular, and the width of the longitudinal connecting plates is gradually increased along the direction pointing to the rear cross beam (402).

8. The vehicle body front structure according to claim 7, characterized in that:

A reinforcing beam (404) is connected between the longitudinal connecting plates (403) at two sides, and second reinforcing ribs (4042) which are X-shaped are arranged between the reinforcing beam (404) and the front beam (401) and between the reinforcing beam (404) and the rear beam (402); and/or the number of the groups of groups,

Along the direction of directional rear cross beam (402), both sides distance (k) between the edge (L) that longitudinal connection board (403) is close to one side in the car gradually reduces and sets up, and both sides all be equipped with a plurality of longitudinal connection board lightening holes (4031) on longitudinal connection board (403), both sides in longitudinal connection board lightening holes (4031) all have at least part be with the homonymy longitudinal connection board (403) be close to one side in the car rectangular hole parallel of edge (L).

9. The vehicle body front structure according to claim 5, characterized in that:

The front cabin assembly (200) is further provided with front shock towers (1) which are respectively arranged at the left side and the right side, front cabin longitudinal beams (3) which are connected to the front parts of the front shock towers (1) at all sides, and front anti-collision beams (7) which are connected with the front ends of the front cabin longitudinal beams (3) at both sides;

the bottom of the front shock absorption tower (1) at two sides is connected with the front auxiliary frame (4), and the rear part of the front shock absorption tower (1) at two sides is connected to the front wall assembly (100).

10. The vehicle body front structure according to claim 9, characterized in that:

Each side of the front shock absorption tower (1) comprises a shock absorption tower body which is formed by die casting, wherein the shock absorption tower body is in an arch shape which is arched upwards and is provided with a front supporting leg (101), a rear seat body (102) and an upper connecting part (103) which is connected between the front supporting leg (101) and the rear seat body (102);

Front cabin longitudinal beam (3) is connected to the front portion of preceding landing leg (101), preceding landing leg (101) with the bottom of back pedestal (102) all with preceding sub vehicle frame (4) is connected, just the top detachably of back pedestal (102) is connected with preceding bumper shock absorber mount pad (2), the rear portion of back pedestal (102) with enclose assembly (100) before link to each other.

11. The vehicle body front structure according to claim 10, characterized in that:

The front supporting legs (101) gradually incline towards the front of the automobile from the top to the bottom of the front supporting legs (101), and a front cabin cross beam (5) is connected between the front supporting legs (101) at two sides; and/or the number of the groups of groups,

One side of the rear seat body (105) facing the interior of the vehicle is provided with a supporting plate (105) extending in a backward inclined way, the supporting plate (105) is integrally die-cast and formed with the shock absorber body, and the rear end of the supporting plate (105) is connected with the front wall assembly (100).

12. The vehicle body front structure according to claim 10, characterized in that:

The rear part of the rear seat body (102) is provided with a lapping plate (1021) extending backwards and a lapping arm (1022) connected with the top of the lapping plate (1021), and the lapping plate (1021) and the lapping arm (1022) are provided with a lapping surface (102 a) lapped on the front wall assembly (100);

The front wall assembly (100) is characterized in that one side facing the interior of the vehicle is provided with front wall reinforcing pieces (604) which are respectively arranged at the left side and the right side, and each side of the front wall reinforcing pieces (604) and the lap joint arms (1022) at the same side are connected in the front-rear direction of the whole vehicle.

13. An automobile, characterized in that:

a vehicle body front structure according to any one of claims 1 to 11 is provided in a vehicle body of the automobile.