CN217918126U

CN217918126U - Automobile body front portion force transmission structure and convertible automobile

Info

Publication number: CN217918126U
Application number: CN202222248925.0U
Authority: CN
Inventors: 陈强; 贺志杰; 张涛; 张书任; 李云达; 张庚; 陈曦
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-11-29
Anticipated expiration: 2032-08-25

Abstract

The utility model provides a force transmission structure at the front part of a vehicle body and an open car, which comprises a front cabin longitudinal beam, a front shock absorption tower connected on the front cabin longitudinal beam, a front wheel cover side beam connected outside the front shock absorption tower and an A column connected with the rear end of the front wheel cover side beam; the one end that front wheel casing boundary beam and A post link to each other is equipped with biography power portion, passes power portion and is "people" style of calligraphy, and has the first transmission arm of arranging along automobile body length direction to and the second transmission arm that sets up for first transmission arm way decline, and the rear end of first transmission arm and second transmission arm all connects on A post. The utility model discloses a anterior biography power structure of automobile body is favorable to guiding the impact to A post transmission dispersion through the biography power portion that sets up "people" style of calligraphy to the biography power portion of "people" style of calligraphy also constitutes triangle-shaped stable structure with the A post, thereby helps promoting the structural stability at front wheel casing boundary beam and A post connection position, and then more does benefit to the transmission dispersion of impact to the A post.

Description

Automobile body front portion force transmission structure and convertible automobile

Technical Field

The utility model relates to an automobile body technical field, in particular to anterior biography force structure of automobile body. The utility model discloses still relate to a dispose uncovered car of this automobile body front portion force transmission structure.

Background

With the update of the open car, the user has higher and higher requirements on the service performance of the open car. In the structure of the open car, the upper part of the A column of the open car, the C column and the D column do not form a continuous and complete structure, so that the rigidity of the whole car is lower, the performance of the open car for resisting frontal collision is poorer, and because the quality of the whole car is smaller, the rigidity of the opening position of the threshold is low, the open car is very easy to have accidents of side turning, rolling and the like when being impacted by the side surface, so that the open car can not play a better protection role for passengers in the car.

In addition, in the prior art, the collision performance of the front frame of the vehicle body is mainly enhanced by a local structure, and the mode cannot improve the force transmission characteristic and the stability of the vehicle body, cannot effectively guide the transmission of the collision force, and cannot well protect the safety of passengers.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a anterior biography power structure of automobile body to can promote structural stability, and do benefit to the guide collision power and transmit the dispersion to the A post.

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

a force transfer structure at the front part of a vehicle body comprises a front cabin longitudinal beam, a front shock absorption tower connected to the front cabin longitudinal beam, a front wheel casing side beam connected to the outer side of the front shock absorption tower, and an A column connected with the rear end of the front wheel casing side beam;

the front wheel cover side beam is provided with a force transmission part at one end connected with the A column, the force transmission part is in a herringbone shape and is provided with a first force transmission arm arranged along the length direction of the vehicle body and a second force transmission arm inclined downwards relative to the first force transmission arm, and the rear ends of the first force transmission arm and the second force transmission arm are connected to the A column.

Furthermore, the A column comprises an A column inner plate and an A column reinforcing plate buckled on the outer side of the A column inner plate, and the first force transmission arm and the second force transmission arm are connected to the A column reinforcing plate.

Furthermore, the inboard of A post reinforcing plate is connected with hinge reinforcing plate and lower hinge reinforcing plate, just the rear end of first transmission arm with go up the hinge reinforcing plate and at least partly link up in whole car width direction, the rear end of second transmission arm with hinge reinforcing plate links up at least partly in whole car width direction down.

Further, the doorsill beam is connected with the bottom end of the A column; and a threshold reinforcing component is arranged in the threshold beam, and the rear end of the second transmission arm is at least partially connected with the threshold reinforcing component in the length direction of the whole vehicle.

Furthermore, the threshold reinforcing assembly comprises a threshold beam reinforcing beam extending along the length direction of the threshold beam and a triangular reinforcing bracket positioned in front of the threshold beam reinforcing beam, and the rear end of the second transmission arm is at least partially connected with the reinforcing bracket in the length direction of the whole vehicle.

Furthermore, the reinforcing bracket is in a right-angled triangle shape, the end face of the reinforcing bracket, which is obliquely arranged, is over against the front end of the doorsill beam reinforcing beam, the front end of the doorsill beam reinforcing beam is provided with an inclined plane parallel to the end face, and a gap is reserved between the inclined plane and the end face; alternatively, the reinforcement bracket and the rocker beam are tack welded together.

Furthermore, the doorsill beam reinforcing beam and the reinforcing bracket are both made of extruded aluminum profiles.

Furthermore, a supporting beam is connected to the front cabin longitudinal beam and connected with the front end of the front wheel casing side beam.

Furthermore, the support beam is y-shaped and is provided with a main beam body connected between the front cabin longitudinal beam and the front wheel casing side beam, and a support beam body with one end connected to the main beam body, and the other end of the support beam body is connected to the front wheel casing side beam.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses a anterior force transfer structure of automobile body, through the biography power portion that sets up "people" style of calligraphy on the front wheel casing boundary beam, be favorable to the impact to A post upper segment and A post hypomere and threshold roof beam transmission, promote and pass the power effect, simultaneously, the biography power portion of "people" style of calligraphy also constitutes triangle-shaped stable structure with the A post, help promoting the structural stability at front wheel casing boundary beam and A post connection position, more do benefit to the transmission dispersion of impact to the A post, and have fine result of use.

In addition, the A post links to each other and forms box structure through A post inner panel and A post reinforcing plate lock, is favorable to improving the structural strength of A post, and does benefit to the transmission of impact through A post to the automobile body rear. The first force transmission arm and the second force transmission arm are respectively connected with the upper hinge reinforcing plate and the lower hinge reinforcing plate at least partially, so that the first force transmission arm and the second force transmission arm are connected with the A column reinforcing plate through the upper hinge reinforcing plate and the lower hinge reinforcing plate, and the transmission of the collision force transmitted by the force transmission part to the A column along the first force transmission arm and the second force transmission arm can be facilitated.

In addition, the rear end of the second transmission arm is at least partially connected with the threshold reinforcing component, so that the collision force transmitted by the transmission part can be transmitted to the threshold reinforcing component behind the vehicle body. And the threshold beam reinforcing beam and the reinforcing bracket which are arranged in the threshold beam and welded together are beneficial to the transmission of the collision force to the middle part and the rear part of the car body through the reinforcing bracket and the threshold beam.

Another object of the present invention is to provide a convertible vehicle, wherein the force-transmitting structure is arranged at the front part of the vehicle body.

Spacious covering or awning on a car, boat, etc. car, through using foretell automobile body front portion force transmission structure, be favorable to improving the structural stability of automobile body to do benefit to the transmission dispersion of impact to the A post.

Drawings

The accompanying drawings, which form a part hereof, 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 without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a force transmission structure at the front part of a vehicle body according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another perspective of a force transmission structure at the front of a vehicle body according to an embodiment of the present invention;

fig. 3 is a partially enlarged view of a force transfer structure at the front part of a vehicle body according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a force transmission part according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a support beam according to an embodiment of the present invention;

fig. 6 is a schematic structural view of an unassembled a-pillar reinforcing plate of an a-pillar according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an assembled state of the reinforced tubular beam according to the embodiment of the present invention;

fig. 8 is a schematic structural view of the reinforced tubular beam and the upper hinge reinforcing plate in an assembled state according to the embodiment of the present invention;

fig. 9 is a schematic structural view of the reinforced tubular beam and the connecting bracket according to the embodiment of the present invention in an assembled state;

fig. 10 is a schematic structural view of a reinforced tubular beam according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a rocker reinforcement assembly according to an embodiment of the present invention;

description of reference numerals:

1. a column A; 2. a threshold beam; 3. reinforcing the tubular beam; 4. connecting a bracket; 5. a sill beam stiffening beam; 6. a reinforcing bracket; 9. a force transmitting portion; 11. a front nacelle stringer; 12. a front shock tower; 13. a front wheel cover edge beam; 14. a support beam;

101. a column reinforcing plate; 102. an A column inner plate; 101a, an A column upper reinforcing plate; 101b, a lower column reinforcing plate; 1031. an upper hinge reinforcement plate; 10310. a groove; 1032. a lower hinge reinforcement plate; 141. a main beam body; 142. a strut body;

201. a sill beam outer panel; 202. a sill beam inner panel;

301. an upper section of the tubular beam; 302. a transition section; 303. a lower section of the tubular beam;

401. accommodating a tank; 901. a first transmission arm; 902. a second force transmission arm;

100. a first lap-joint flanging; 200. second lap-joint flanging; 300. third lap-joint flanging; 400. fourth lap-joint flanging; H. a gap.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection may be fixed, detachable, or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a force transmission structure at the front part of a vehicle body, which is applied to a convertible car and can improve the stability of the structure at the front part of the vehicle body and is favorable for guiding the transmission and dispersion of collision force of the car in frontal collision to an A column.

Overall, an exemplary structure of the force transmission structure at the front of the vehicle body of the present embodiment is shown in fig. 1 to 3, and in this case, the force transmission structure at the front of the vehicle body includes a front cabin side member 11, a front shock absorbing tower 12 connected to the front cabin side member 11, a front wheel house side member 13 connected to the outside of the front shock absorbing tower 12, and an a-pillar 1 connected to the rear end of the front wheel house side member 13.

The front wheel cover side beam 13 is provided with a force transmission part 9 at one end connected with the a column 1, as shown in fig. 1 to fig. 3 and in combination with fig. 4, the force transmission part 9 is in a herringbone shape, and is provided with a first force transmission arm 901 arranged along the length direction of the vehicle body and a second force transmission arm 902 arranged downwards relative to the first force transmission arm 901, and the rear ends of the first force transmission arm 901 and the second force transmission arm 902 are both connected to the a column 1.

In the structure, the transmission part 9 in the shape of the Chinese character 'ren' is beneficial to guiding the collision force to be transmitted to the upper A column section, the lower A column section and the doorsill beam 2, and the force transmission effect can be improved. And the V-shaped force transmission part 9 and the A column 1 form a triangular stable structure, which is beneficial to improving the structural stability of the connecting part of the front wheel cover side beam 13 and the A column 1 and is more beneficial to the transmission and dispersion of the collision force to the A column.

The front-rear direction shown in the drawings is the longitudinal direction of the vehicle body, and the left-right direction is the width direction of the vehicle body. And the direction perpendicular to both the front-rear direction and the left-right direction is the height direction of the vehicle body.

For better understanding of the present embodiment, the main structure of the front portion of the vehicle body will be described first. The front cabin longitudinal beams 11 of the convertible car extend along the length direction of the car body and are two in bilateral symmetry, and the two front cabin longitudinal beams 11 are important force transmission components used for guiding the transmission of collision force to the back of the car body in the vehicle collision. The front shock absorber tower 12 is connected to the front nacelle side member 11, and a front wheel house side member 13 is connected to the outer side of the front shock absorber tower 12. The front wheel house side beam 13 and the front shock-absorbing tower 12 are also two in bilateral symmetry. The inverted V-shaped force transmission part 9 is matched with the front wheel cover side beam 13 and is also two in bilateral symmetry.

The a-pillar 1 of a convertible generally includes a longitudinal portion extending in a height direction of a vehicle body and a lateral portion extending in a length direction of the vehicle body, and the a-pillar of the vehicle generally includes an a-pillar inner panel 102 and an a-pillar outer panel that are formed with a cavity around them, and an a-pillar reinforcement structure provided in the cavity.

Specifically, the a-pillar of the present embodiment includes an a-pillar inner panel 102, and an a-pillar reinforcement panel 101 that is fastened to the outer side of the a-pillar inner panel 102. Wherein, enclose between A post reinforcing plate 101 and the A post inner panel 102 and form to have the cavity, so make A post 1 form box structure, do benefit to and improve A post 1's structural strength to do benefit to the transmission of impact through A post 1 to the automobile body rear. Moreover, the a-pillar reinforcement plate 101 of the present embodiment includes an a-pillar upper reinforcement plate 101a and an a-pillar lower reinforcement plate 101b that are arranged one above the other and joined together for ease of manufacturing.

The specific structure of the force transmission portion of the present embodiment is shown in fig. 4, and includes a first transmission arm 901 disposed along the length direction of the vehicle body, and a second transmission arm 902 disposed obliquely downward with respect to the first transmission arm 901. The first transmission arm 901 and the second transmission arm 902 are both connected to the a-pillar stiffener 101.

As a preferred embodiment of the present embodiment, an upper hinge reinforcement plate 1031 and a lower hinge reinforcement plate 1032 are connected to the inner side of the a-pillar reinforcement plate 101 of the present embodiment. The rear end of the first transmission arm 901 is at least partially connected with the upper hinge reinforcing plate 1031 in the width direction of the whole vehicle, and the rear end of the second transmission arm 902 is at least partially connected with the lower hinge reinforcing plate 1032 in the width direction of the whole vehicle, so that the first transmission arm 901 and the second transmission arm 902 are better connected with the A column reinforcing plate 101, and the transmission of the collision force transmitted by the transmission part 9 to the A column 1 is facilitated.

It should be noted that, the above joining specifically means that the two members of the upper hinge reinforcement plate 1031 on the first transmission arm 901, and the two members of the second transmission arm 902 and the lower hinge reinforcement plate 1032 are at least partially overlapped in projection in the width direction of the entire vehicle, so that the connection effect of the upper hinge reinforcement plate 1031 on the first transmission arm 901 and the connection effect of the second transmission arm 902 and the lower hinge reinforcement plate 1032 can be improved.

Specifically, referring to fig. 4, a first lap cuff 100 and a second lap cuff 200 are formed at the rear end of the first transmission arm 901. A third lap cuff 300 and a third lap cuff 400 are formed at the rear end of the second transmission arm 902. The projections of the first overlap flange 100 and the upper hinge reinforcing plate 1031 in the width direction of the entire vehicle at least partially overlap, and the projections of the fourth overlap flange 400 and the lower hinge reinforcing plate 1032 in the width direction of the entire vehicle at least partially overlap. The third overlap flange 300 at least partially overlaps the projection of the sill reinforcing assembly described below in the longitudinal direction of the vehicle.

The first lap-joint flanging 100, the second lap-joint flanging 200, the third lap-joint flanging 300 and the third lap-joint flanging 400 are connected to the A column reinforcing plate 101 through arrangement, namely the first lap-joint flanging 100 and the second lap-joint flanging 200 formed at the rear end of the first transmission arm 901 are connected to the A column reinforcing plate 101a, the third lap-joint flanging 300 and the fourth lap-joint flanging 400 formed at the rear end of the second transmission arm 902 are connected to the A column reinforcing plate 101b, and therefore the connection strength of the transmission part 9 and the A column 1 can be improved.

In order to improve the structural strength of the front wheel house edge beam 13, in the present embodiment, a support beam 14 is further connected to the front nacelle side member 11, and the support beam 14 is connected to the front end of the front wheel house edge beam 13. As a preferred embodiment, as shown in fig. 5 and 2, the support beam 14 of the present embodiment is "y" shaped, and includes a main beam body 141 and a branch beam body 142. The main beam body 141 is connected between the front nacelle side member 11 and the front wheel house side member 13, one end of the outrigger body 142 is connected to the main beam body 141, and the other end of the outrigger body 142 is connected to the front wheel house side member 13. Thereby, the front wheel cover side beam 13 can be well supported.

In order to improve the structural strength of the a-pillar and the safety protection performance of the a-pillar portion, in this embodiment, as shown in fig. 6 and 7, a reinforced tubular beam 3 is disposed in a cavity between an a-pillar inner panel 102 and an a-pillar reinforcing panel 101, and the reinforced tubular beam 3 is specifically connected to the a-pillar inner panel 102.

As a preferred embodiment of the present embodiment, the reinforcing tubular beam 3 of the present embodiment is connected inside the a-pillar 1 by the connecting bracket 4. Referring to fig. 6 to 9, the connecting bracket 4 is in a shape of a "u" and is formed with a receiving groove 401, and the reinforcing tubular beam 3 is specifically connected in the receiving groove 401. And the connecting brackets 4 are plural and arranged at intervals along the extending direction of the reinforced tubular beam 3. This embodiment will strengthen tubular beam 3 welded connection on A post inner panel 102 through a plurality of linking bridge 4 that set up for strengthen tubular beam 3 and A post 1's being connected is structurally simpler, and also does benefit to the fixed of strengthening tubular beam 3.

It should be noted that, in addition to the connection to the a-pillar inner panel 102, the reinforced tubular beam 3 of the present embodiment may also be connected to the a-pillar reinforcement panel 101, and this is also possible.

As shown in fig. 10 in combination with fig. 6 to 9, the reinforced tubular girder 3 of the present embodiment has a tubular girder upper section 301 disposed corresponding to the upper portion of the a-pillar 1, a tubular girder lower section 303 disposed corresponding to the lower portion of the a-pillar 1, and a transition section 302 connected between the tubular girder upper section 301 and the tubular girder lower section 303, wherein the tubular girder upper section 301 has a smaller cross-sectional area than the tubular girder lower section 303, and the cross-sectional area of the transition section 302 gradually increases in a direction from the tubular girder upper section 301 to the tubular girder lower section 303.

That is, as shown in fig. 10, the cross-sectional areas of the upper tubular beam segment 301, the transition segment 302, and the lower tubular beam segment 303 are gradually enlarged along the direction from the upper end of the a-pillar 1 to the lower end of the a-pillar 1, so that the cross-sectional area of the a-pillar 1 can be matched, and the reinforcement effect of the a-pillar 1 is ensured, and the weight reduction design is facilitated.

As a preferred embodiment, as shown in fig. 9, the cross section of the reinforced tubular beam 3 of the present embodiment is triangular, and this structure can utilize the structural stability of the triangle, which is beneficial to improving the structural strength of the a-pillar. In addition, for the convenience of processing and manufacturing, the reinforced tubular beam 3 of the present embodiment adopts a thermal expansion pipe, and the upper tubular beam segment 301, the transition segment 302 and the lower tubular beam segment 303 can be a three-segment split structure and are connected to each other by laser welding. It will of course be appreciated that the reinforcing tubular beams 3 may also be of one-piece construction.

It should be noted that, in addition to the cross section of the reinforced tubular beam 3 of the present embodiment being triangular, the reinforced tubular beam may also be designed to have other shapes, such as circular or other polygonal shapes. In addition, it is worth to say that the thermal expansion pipe belongs to one of seamless steel pipes, and has the characteristics of wide application, convenient material taking and low cost.

The reinforcing tubular beam 3 of the embodiment can have better rigidity by adopting the special-shaped heat expansion pipe, and can improve the overall rigidity of the A column 1, thereby providing effective supporting effect when the automobile rolls.

In addition, the force transfer structure at the front part of the vehicle body of the embodiment further includes a threshold beam 2 connected with the bottom end of the a-pillar 1, wherein a threshold reinforcement component is arranged in the threshold beam 2, and the rear end of the second force transfer arm 902, that is, the third lap-joint flange 300 and the threshold reinforcement component are at least partially joined in the length direction of the whole vehicle, thereby facilitating the transmission of the collision force transmitted by the force transfer part 9 to the threshold reinforcement component at the rear part.

The rocker 2 of the present embodiment is structurally, and specifically includes a rocker outer panel 201 and a rocker inner panel 202 that are fastened together. In the present embodiment, as shown in fig. 1 to 4, the front end of the rocker outer panel 201 is formed by the bottom of the a-pillar reinforcement panel, that is, the a-pillar lower reinforcement panel 101b shown in the drawings. And the rocker reinforcement assembly is disposed between the rocker outer panel 201 and the rocker inner panel 202, and the rocker inner panel 202 is connected to the a-pillar inner panel 102, and the rocker outer panel 201 is connected to the a-pillar reinforcement panel 101, that is, the a-pillar under reinforcement panel 101b.

In addition, as shown in fig. 8, the upper hinge reinforcing plate 1031 of the present embodiment is provided with a groove 10310 for accommodating the reinforcing pipe beam 3, and the reinforcing pipe beam 3 can be fixedly connected in the groove 10310 by welding. From this for strengthen tubular beam 3 and last hinge reinforcing plate 1031 can be better be connected, thereby through the reliability of door hinge installation, also do benefit to the structural strength who further improves the A post.

As shown in fig. 11 in conjunction with fig. 1 to 3 and 6, the rocker reinforcement assembly of the present embodiment specifically includes a rocker reinforcement beam 5 extending in the longitudinal direction of the rocker beam 2, and a triangular reinforcement bracket 6 located in front of the rocker reinforcement beam 5. The rear end of the middle second transmission arm 902, i.e. the third lap cuff 300, is engaged with at least a portion of the reinforced frame 6 in the longitudinal direction of the vehicle, so as to guide the transmission of the collision force to the rocker 2.

Further, the bottom end of the tubular reinforcement beam 3 of the present embodiment is welded to the rocker reinforcement beam 5. From this, through the combination of threshold roof beam stiffening beam 5 and triangular reinforcing bracket 6, usable threshold roof beam stiffening beam 5 guarantees the reinforcing effect to threshold roof beam middle part on the one hand, and on the other hand also can effectively strengthen threshold roof beam 1 front end through reinforcing bracket 6 specially.

It is understood that the tubular reinforcement 3 of the present embodiment may be fixedly connected to the reinforcement bracket 6 only, or may be fixedly connected to both the rocker reinforcement 5 and the reinforcement bracket 6, in addition to the rocker reinforcement 5, so that the supporting effect of the tubular reinforcement 3 can be improved.

In order to improve the structural strength of the rocker, the rocker reinforcement beam 5 and the reinforcement bracket 6, which are arranged in the rocker, are in this embodiment preferably manufactured from extruded aluminium profiles. Therefore, the extruded aluminum profile can improve the structural strength of the doorsill beam, and has the characteristics of better collapse performance and lower cost.

Meanwhile, as a further modification of the present embodiment, as shown in fig. 11, the reinforcing brace 6 of the present embodiment is configured in a right triangle. The end face of the reinforcement bracket 6, which is obliquely arranged, faces the front end of the rocker beam reinforcement beam 5, the front end of the rocker beam reinforcement beam 5 is provided with an inclined face parallel to the end face, and a gap H is reserved between the inclined face and the end face, and the gap H is favorable for assembling the rocker beam reinforcement beam 5 on the rocker beam inner plate 202 and the reinforcement bracket 6 on the rocker beam inner plate 202.

It is worth mentioning that, in the embodiment, the reinforcing bracket 6 and the rocker beam reinforcing beam 5 are welded together, that is, the gap H is left between the inclined surface and the end surface, so that the reinforcing bracket 6 and the rocker beam reinforcing beam 5 are more favorable for enhancing the reinforcing effect of the rocker reinforcing assembly structure, and the collision force is also favorable for being transmitted to the middle part and the rear part of the vehicle body through the reinforcing bracket 6 and the rocker beam reinforcing beam 5.

In a specific use of the force transmission structure for the front part of the vehicle body of the present embodiment, when a collision force occurs in the front part of the vehicle body, the transmission path of the collision force may be as shown in fig. 3, the collision force is transmitted along the front cabin side member 11 and transmitted to the front wheel house side member 12 under the guidance of the support beam 14, and at the same time, the collision force is transmitted to the upper section of the a-pillar 1 and the lower section of the a-pillar 1 and the rocker beam 2 under the guidance of the first transmission arm 901 and the second transmission arm 902, so that the collision force can be effectively dispersed.

The anterior biography power structure of automobile body of this embodiment is through setting up the biography power portion 9 of "people" style of calligraphy that links to each other with A post on front wheel casing boundary beam 13, is favorable to the transmission of impact to A post upper segment and A post hypomere and threshold roof beam, promotes and passes power effect, and simultaneously, "people" the biography power portion of style of calligraphy also constitutes triangle-shaped stable structure with A post, helps promoting the structural stability at front wheel casing boundary beam and A post connection position, more does benefit to the transmission dispersion of impact to A post.

In addition, the embodiment also relates to a convertible automobile, and the convertible automobile is provided with the front body force transmission structure.

The convertible car of this embodiment, through using foretell automobile body front portion biography power structure, is favorable to improving the structural stability of automobile body to do benefit to the transmission dispersion of impact to the A post, when the car takes place to roll moreover, also can promote the safety protection performance at 1 position of car A post, thereby do benefit to the structural stability and the safety in utilization that promote the convertible car, and have fine result of use.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A force transmission structure at the front part of a vehicle body is characterized in that:

the damping device comprises a front cabin longitudinal beam (11), a front damping tower (12) connected to the front cabin longitudinal beam (11), a front wheel casing boundary beam (13) connected to the outer side of the front damping tower (12), and an A column (1) connected with the rear end of the front wheel casing boundary beam (13);

the front wheel cover side beam (13) is provided with a force transmission part (9) at one end connected with the A column (1), the force transmission part (9) is in a herringbone shape and is provided with a first force transmission arm (901) arranged along the length direction of a vehicle body and a second force transmission arm (902) arranged downwards relative to the first force transmission arm (901), and the rear ends of the first force transmission arm (901) and the second force transmission arm (902) are connected to the A column (1).

2. A force transfer structure at the front of a vehicle body according to claim 1, characterized in that:

the A-pillar (1) comprises an A-pillar inner plate (102) and an A-pillar reinforcing plate (101) buckled on the outer side of the A-pillar inner plate (102), and the first transmission arm (901) and the second transmission arm (902) are connected to the A-pillar reinforcing plate (101).

3. The vehicle body front force transmission structure according to claim 2, wherein:

an upper hinge reinforcing plate (1031) and a lower hinge reinforcing plate (1032) are connected to the inner side of the A-pillar reinforcing plate (101), the rear end of the first transmission arm (901) is at least partially connected with the upper hinge reinforcing plate (1031) in the width direction of the whole vehicle, and the rear end of the second transmission arm (902) is at least partially connected with the lower hinge reinforcing plate (1032) in the width direction of the whole vehicle.

4. A force transfer structure at the front of a vehicle body according to claim 1, characterized in that:

the rocker beam is characterized by also comprising a threshold beam (2) connected with the bottom end of the A-pillar (1);

a threshold reinforcing component is arranged in the threshold beam (2), and the rear end of the second transmission arm (902) is at least partially connected with the threshold reinforcing component in the length direction of the whole vehicle.

5. The vehicle body front force transmission structure according to claim 4, wherein:

the threshold reinforcing assembly comprises a threshold beam reinforcing beam (5) extending along the length direction of the threshold beam (2) and a triangular reinforcing bracket (6) located in front of the threshold beam reinforcing beam (5), and the rear end of the second transmission arm (902) is at least partially connected with the reinforcing bracket (6) in the length direction of the whole vehicle.

6. The force transmission structure at the front of a vehicle body according to claim 5, characterized in that:

the reinforcing bracket (6) is in a right-angled triangle shape, the end face of the reinforcing bracket (6) which is obliquely arranged is over against the front end of the doorsill beam reinforcing beam (5), the front end of the doorsill beam reinforcing beam (5) is provided with an inclined face which is parallel to the end face, and a gap (H) is reserved between the inclined face and the end face; alternatively, the first and second electrodes may be,

the reinforcing bracket (6) and the doorsill beam reinforcing beam (5) are tailor welded together.

7. The vehicle body front force transmission structure of claim 5, wherein:

the doorsill beam reinforcing beam (5) and the reinforcing bracket (6) are both made of extruded aluminum profiles.

8. The vehicle body front force transmission structure according to any one of claims 1 to 7, wherein:

the front engine room longitudinal beam (11) is connected with a supporting beam (14), and the supporting beam (14) is connected with the front end of the front wheel cover side beam (13).

9. The vehicle body front force transmission structure according to claim 8, wherein:

the support beam (14) is y-shaped, and comprises a main beam body (141) connected between the front cabin longitudinal beam (11) and the front wheel house edge beam (13), and a support beam body (142) having one end connected to the main beam body (141), and the other end of the support beam body (142) connected to the front wheel house edge beam (13).

10. A convertible automobile characterized in that:

the convertible vehicle body has a front body force transmission structure of any one of claims 1 to 9 therein.