CN220147433U - A post reinforcement assembly - Google Patents

Abstract

The utility model discloses an A-column reinforcement assembly, which comprises an A-column reinforcement, an A-column upper hinge reinforcement plate, an A-column upper hinge installation reinforcement, an A-column lower hinge installation reinforcement and an A-column reinforcement pipe, wherein the A-column reinforcement is provided with the A-column upper hinge reinforcement plate, the A-column lower hinge installation reinforcement and the A-column reinforcement pipe, and the A-column upper hinge installation reinforcement is arranged on the A-column upper hinge reinforcement plate; the A column reinforcing pipe is a closed hot air expansion pipe. The utility model has the advantages that the A-pillar reinforcing pipe is closed, has stronger bending and torsion resistance, is a hot air expansion pipe, has high strength, has the strength far greater than that of the existing A-pillar reinforcing plate structure, and can reduce the thickness of the A-pillar reinforcing piece under the condition of meeting the strength safety of the A-pillar reinforcing piece assembly, thereby lightening the weight of the A-pillar reinforcing piece assembly and meeting the light-weight arrangement.

Description

A post reinforcement assembly

Technical Field

The utility model relates to the technical field of automobile bodies, in particular to an A-column reinforcement assembly.

Background

With the increasing popularity of automobiles, the safety performance of automobiles is becoming a focus of attention. Currently, collision safety standards are continuously upgraded, and in order to cope with increasingly severe collision requirements, safety design of a vehicle body is increasingly important. The side wall assembly is an important component of the vehicle body, and the A-pillar reinforcement assembly is an important component of the side wall assembly.

For example, chinese patent publication No. CN213799905U discloses an automotive a-pillar assembly and an automobile, which includes an a-pillar outer panel, an a-pillar inner panel, an a-pillar reinforcement panel, a door sill front closure panel, and a door sill reinforcement panel; the A column inner plate is arranged on the inner side of the A column outer plate and is fixed with the A column outer plate; the A column reinforcing plate is arranged between the A column outer plate and the A column inner plate and is fixedly attached to the A column outer plate; the threshold front sealing plate is arranged at the front end of the threshold and is simultaneously fixed with the threshold, the A column outer plate, the A column inner plate and the A column reinforcing plate; the threshold reinforcing plate comprises a front reinforcing section and a rear reinforcing section, wherein the front reinforcing section is fixed with the A column inner plate, and the rear reinforcing section is fixed with the middle section or the middle rear section of the threshold. The automobile A column assembly is not easy to crush and excellent in anti-collision performance, and can improve the overall rigidity mode of the automobile body and meet the requirements of small-bias collision regulations in a new CIASI. However, the A column reinforcing plate in the patent is large in size, so that the quality of the A column assembly is improved, the weight reduction of the side wall assembly is not facilitated, and the lightweight design of a vehicle body is not facilitated.

Disclosure of Invention

The technical problem to be solved by the utility model is how to reduce the weight of the vehicle body on the premise of meeting the safety performance.

In order to solve the technical problems, the utility model provides the following technical scheme:

the A column reinforcement assembly comprises an A column reinforcement, an A column upper hinge reinforcement plate, an A column upper hinge installation reinforcement, an A column lower hinge installation reinforcement and an A column reinforcement pipe, wherein the A column reinforcement is provided with the A column upper hinge reinforcement plate, the A column lower hinge installation reinforcement and the A column reinforcement pipe, and the A column upper hinge installation reinforcement is arranged on the A column upper hinge reinforcement plate;

the A column reinforcing pipe is a closed hot air expansion pipe.

The A column reinforcing pipe is of a closed shape and has stronger bending and torsion resistance, and the A column reinforcing pipe is a hot air expansion pipe, so that the strength of the A column reinforcing pipe is large, the strength of the A column reinforcing pipe is far greater than that of the existing A column reinforcing plate structure, the thickness of an A column reinforcing piece can be reduced under the condition of meeting the strength safety of the A column reinforcing piece assembly, the weight of the A column reinforcing piece assembly is further reduced, and the light-weight setting is met.

Preferably, the A-pillar reinforcement pipe is fixedly connected with the A-pillar reinforcement through remote laser welding, so that the additional support connection is avoided, and the weight of the A-pillar reinforcement assembly is further reduced.

Preferably, the A column reinforcing pipe is provided with a lightening hole and a liquid leakage hole.

Preferably, the hinge reinforcing plate on the A column and the A column reinforcing piece are integrally formed; the strength of the a-pillar reinforcement is improved.

Preferably, an A-pillar limiter mounting reinforcement is welded on the A-pillar reinforcement.

Preferably, the A-pillar reinforcement is also welded with an A-pillar reinforcement front bracket.

Preferably, the A-pillar reinforcement is further welded with a side wall front outer panel.

Compared with the prior art, the utility model has the beneficial effects that:

1. the A column reinforcing pipe is of a closed shape and has stronger bending and torsion resistance, and the A column reinforcing pipe is a hot air expansion pipe, so that the strength of the A column reinforcing pipe is large, the strength of the A column reinforcing pipe is far greater than that of the existing A column reinforcing plate structure, the thickness of an A column reinforcing piece can be reduced under the condition of meeting the strength safety of the A column reinforcing piece assembly, the weight of the A column reinforcing piece assembly is further reduced, and the light-weight setting is met.

2. The A column reinforcing pipe is fixedly connected with the A column reinforcing piece through remote laser welding, so that the additional increase of bracket connection is avoided, and the weight of the A column reinforcing piece assembly is further reduced.

3. The hinge reinforcing plate on the A column and the A column reinforcing piece are integrally formed, so that the strength of the A column reinforcing piece is improved.

Drawings

FIG. 1 is an exploded view of an embodiment of the present utility model;

FIG. 2 is a schematic view of an in-vehicle direction according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a column A reinforcement assembly according to an embodiment of the utility model;

FIG. 4 is a schematic illustration of the attachment of an embodiment A-pillar stiffener assembly to a cabin edge beam;

FIG. 5 is a schematic view of a reinforcement assembly on a column A according to an embodiment of the utility model;

FIG. 6 is a schematic view of the structure of a reinforcing tube on a column A according to the embodiment of the utility model;

FIG. 7 is a schematic view of a B-pillar stiffener assembly according to an embodiment of the present utility model;

FIG. 8 is a schematic structural view of a side body rear inner panel welding assembly according to an embodiment of the present utility model;

FIG. 9 is a cross-sectional view of a side body rear inner panel welding assembly in accordance with an embodiment of the present utility model;

FIG. 10 is a schematic view of a threshold reinforcement beam assembly according to an embodiment of the present utility model;

FIG. 11 is a cross-sectional view of a threshold reinforcement beam assembly according to an embodiment of the present utility model;

FIG. 12 is a schematic view showing a partial structure of a side body outer panel according to an embodiment of the present utility model;

FIG. 13 is a schematic view showing the mounting structure of a door frame sealing strip according to an embodiment of the present utility model;

FIG. 14 is a sectional view showing the installation of a door frame weather strip according to an embodiment of the present utility model;

fig. 15 is a schematic structural view of a vehicle body structure according to an embodiment of the present utility model.

Detailed Description

In order to facilitate the understanding of the technical scheme of the present utility model by those skilled in the art, the technical scheme of the present utility model will be further described with reference to the accompanying drawings.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated unless otherwise explicitly specified and defined. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1, 2 and 11, the present embodiment discloses a side wall assembly, which comprises a side wall outer panel 1, an a pillar reinforcement assembly 2, an a pillar upper reinforcement assembly 3, a B pillar reinforcement assembly 4, a side wall rear inner panel welding assembly 5, a threshold reinforcement beam assembly 6, a side wall threshold reinforcement assembly 7, an a pillar inner panel assembly 8 and a B pillar inner panel assembly 9; the A column reinforcement assembly 2, the A column upper reinforcement assembly 3, the B column reinforcement assembly 4, the side wall rear inner plate welding assembly 5 and the side wall threshold reinforcement assembly 7 are all connected with the side wall outer plate 1, the A column reinforcement assembly 2, the A column upper reinforcement assembly 3, the side wall rear inner plate welding assembly 5 and the side wall threshold reinforcement assembly 7 are sequentially connected to form a closed reinforcement ring structure, the threshold reinforcement beam assembly 6 and the side wall threshold reinforcement assembly 7 are all connected with a lower car body threshold 101, the threshold reinforcement beam assembly 6 is arranged inside the side wall threshold reinforcement assembly 7, one end of the B column reinforcement assembly 4 is connected with the A column upper reinforcement assembly 3, the other end of the B column reinforcement assembly is connected with the side wall threshold reinforcement assembly 7, so that the reinforcement ring structure is divided into a front door opening reinforcement ring structure and a rear door opening reinforcement ring structure, the A column inner plate assembly 8 is connected with the A column reinforcement assembly 2, and the B column inner plate assembly 9 is connected with the B column reinforcement assembly 4.

The side wall assembly is provided with the total reinforcing ring structure, the front door opening reinforcing ring structure and the rear door opening reinforcing ring structure, so that three reinforcing ring structures are formed, the bending resistance and the torsion resistance are good, the transmission of collision force is better realized, the collision performance of a vehicle is improved, the strength of the side wall assembly is improved, and the safety performance of a vehicle body is further improved.

Referring to fig. 3, the a-pillar stiffener assembly 2 includes an a-pillar stiffener 21, an a-pillar upper hinge stiffener 22, an a-pillar upper hinge mount stiffener 23, an a-pillar limiter mount stiffener 24, an a-pillar lower hinge mount stiffener 25, an a-pillar stiffener tube 26, an a-pillar stiffener front bracket 27, and a side wall front outer panel 28, two ends of the a-pillar stiffener 21 are respectively connected with the a-pillar upper stiffener assembly 3 and the side wall threshold stiffener assembly 7, the a-pillar stiffener 21 is welded with the a-pillar upper hinge stiffener 22, the a-pillar limiter mount stiffener 24, the a-pillar lower hinge mount stiffener 25, the a-pillar stiffener front bracket 27, and the side wall front outer panel 28, and the a-pillar upper hinge mount stiffener 23 is welded on the a-pillar upper hinge stiffener 22, specifically by spot welding; the a-pillar reinforcement tube 26 is welded to the a-pillar reinforcement 21 along the length direction of the a-pillar reinforcement 21 in a remote laser welding manner, so that additional bracket connection is avoided, and the weight of the a-pillar reinforcement assembly 2 is further reduced.

The A-pillar reinforcement tube 26 is a closed hot air expansion tube, and penetrates from the triangular window area of the A-pillar to the lower threshold area of the A-pillar. Because the strength of the part manufactured by the hot air expansion forming process is high, the tensile strength can reach 1500-2000MPa, and the part is manufactured by adopting the hot air expansion forming process in the embodiment, wherein the process comprises pipe manufacturing, pre-bending, pre-forming, heating, hot air expansion forming, trimming and hole cutting, and the pipe manufacturing is preferably a seamed steel pipe. The material adopted for the tube of the A column reinforcing tube 26 can be a plating plate or a common plate, and in order to reduce the cost, the common plate is adopted in the implementation; the A column reinforcing pipe 26 can be of a constant section or variable section structure, and in order to flexibly match and avoid peripheral parts, the variable section structure is adopted in the implementation, and the section change rate is less than or equal to 12%; the a-pillar reinforcement pipe 26 may be of an equal thickness or a variable thickness construction, which is used in this embodiment for cost reduction.

Further, the a-pillar reinforcement pipe 26 is further provided with a weight reducing hole (not shown) and a liquid leakage hole (not shown), which is convenient for coating liquid leakage and reducing the mass of the a-pillar reinforcement assembly 2.

The A column reinforcing piece 21 and the A column upper hinge reinforcing plate 22 are integrally formed by thermal forming, and the material sheets of the A column reinforcing piece 21 and the A column upper hinge reinforcing plate 22 are welded together and then integrally stamped in a hot stamping die, so that the strength of the A column reinforcing piece 21 is greatly improved; meanwhile, in order to install the upper hinge of the front door, the A-pillar upper hinge installation reinforcing piece 23 is welded, so that the structural strength of the A-pillar reinforcing piece assembly 2 is improved, the installation strength of the upper hinge of the front door is further improved, and the vehicle door is prevented from falling down.

Because the A-pillar reinforcing pipe 26 is closed, has stronger bending and torsion resistance, and the A-pillar reinforcing pipe 26 is a hot air expansion pipe, the strength of the A-pillar reinforcing pipe 26 is high, the strength of the A-pillar reinforcing pipe 26 is far greater than that of the existing A-pillar reinforcing plate structure, and the thickness of the A-pillar reinforcing piece 21 can be reduced under the condition of meeting the strength safety of the A-pillar reinforcing piece assembly 2, so that the weight of the A-pillar reinforcing piece assembly 2 is reduced, and the light-weight setting is met.

Referring to fig. 4, the a-pillar reinforcement front bracket 27 and the side body front outer panel 28 extend as the front portion of the a-pillar reinforcement 21, and are connected to a cabin side rail 102 in the lower body assembly to provide a force transmission path for the collision force.

Referring to fig. 5, the a-pillar stiffener assembly 3 includes an a-pillar stiffener tube 31, a roof front cross support plate 32, a B-pillar connection bracket 33, a rear connection plate 34, a roof rack front mounting bracket 35, and a plurality of supports 36; the A column reinforcing pipe 31 one end is connected the A column reinforcement 21, and the other end passes through the back connecting plate 34 and connects the side wall back inner panel welding assembly 5, the A column reinforcing pipe 31 has welded top cap front beam backup pad 32, B post linking bridge 33, back connecting plate 34, luggage rack front mounting bracket 35 and a plurality of support piece 36 through long-range laser welding's mode, the A column reinforcing pipe 31 passes through B post linking bridge 33 and connects B column reinforcement assembly 4.

Compared with the traditional A-column reinforcement assembly, the A-column reinforcement assembly 3 has fewer welding spots and simple welding process, is beneficial to improving the production efficiency and reducing the welding cost.

The reinforcing pipe 31 on the A column is a closed hot air expansion pipe, and penetrates from the triangular window area of the A column to the C column area; in this embodiment, the a-pillar reinforcing tube 31 is formed by a thermal expansion process, and the tensile strength can reach 1500-2000MPa, the process includes tube making, pre-bending, pre-forming, heating, thermal expansion forming, trimming and hole cutting, wherein the tube making in the process selects a seamed steel tube for cost consideration, the a-pillar reinforcing tube 31 adopts a plating plate or a plain plate, and in order to reduce the cost, the material in this embodiment adopts a plain plate; the A column upper reinforcing pipe 31 can be of a constant cross section or variable cross section structure, and the installation and connection of peripheral parts are considered, so that the variable cross section structure is adopted, and the cross section change rate is less than or equal to 12%; the a-pillar reinforcing pipe 31 may be of equal thickness or of variable thickness, and in this embodiment, a variable thickness is used.

The traditional A column reinforcing part assembly increases the structural strength by increasing the cross section, but the structural weight of the part is increased. In the utility model, the closed hot air expansion pipe is adopted as the A column reinforcing pipe 31, compared with the traditional structure, the cross section size is reduced, thereby being beneficial to reducing the barrier angle of the A column, reducing the visual field blind area of a driver, increasing the flexibility of the A column modeling, improving the structural strength of the A column reinforcing part assembly 3, and meeting the original structural strength and performance by the smaller cross section size, and further reducing the weight of the side wall assembly.

Further, referring to fig. 6, the reinforcing pipe 31 on the a-pillar is formed by welding a first reinforcing pipe 311 on the a-pillar, a second reinforcing pipe 312 on the a-pillar, and a third reinforcing pipe 313 on the a-pillar in sequence, wherein the thickness of the first reinforcing pipe 311 on the a-pillar is 1.6mm, the thickness of the second reinforcing pipe 312 on the a-pillar is 1.4mm, and the thickness of the third reinforcing pipe 313 on the a-pillar is 1.2mm, specifically, when the reinforcing pipe 31 on the a-pillar is manufactured, the plates of the first reinforcing pipe 311 on the a-pillar, the second reinforcing pipe 312 on the a-pillar, and the third reinforcing pipe 313 on the a-pillar are welded together by laser and then subjected to hot gas expansion molding.

Further, the a column upper reinforcing pipe 31 is further provided with a mounting hole, a process hole and a liquid leakage hole, so as to meet the mounting and process requirements, and the mounting hole is matched with a rivet nut, so that the mounting of parts such as a side air curtain and a handle bracket is facilitated.

The A column upper reinforcement assembly 3 is connected with the side wall outer plate 1 by adopting a top cover front cross beam supporting plate 32, a B column connecting bracket 33, a luggage rack front mounting bracket 35, a plurality of supporting pieces 36 and upper and lower flanging of a rear connecting plate 34 to be welded with the side wall outer plate 1.

Referring to fig. 7, the B-pillar reinforcement assembly 4 includes a B-pillar reinforcement tube 41, a B-pillar upper reinforcement 42, a B-pillar lower reinforcement 43, and a B-pillar upper hinge mounting reinforcement 44, one end of the B-pillar reinforcement tube 41 is connected to the B-pillar connecting bracket 33 through the B-pillar upper reinforcement 42, the other end is connected to the side sill reinforcement assembly 7 through the B-pillar lower reinforcement 43, the B-pillar upper hinge mounting reinforcement 44 is welded to the B-pillar reinforcement tube 41, the B-pillar inner panel 9 is connected to the B-pillar upper reinforcement 42 and the flange of the B-pillar lower reinforcement 43 through spot welding, and the B-pillar inner panel 9 is connected to the B-pillar reinforcement tube 41 through remote laser welding.

The B-pillar reinforcement tube 41 is a closed hot air expansion tube, in this embodiment, the B-pillar reinforcement tube 41 is formed by a hot air expansion process, the tensile strength can reach 1500-2000MPa, in this embodiment, the B-pillar reinforcement tube is formed by a hot air expansion forming process, which includes tube-pre-bending-pre-forming-heating-hot air expansion forming-trimming and cutting, wherein the tube is preferably a seamed steel tube. The material adopted for the tube of the B-pillar reinforcing tube 41 can be a plating plate or a common plate, and in order to reduce the cost, the common plate is adopted in the implementation; the B-pillar reinforcing pipe 41 can be of a constant section or variable section structure, and in order to flexibly match and avoid peripheral parts, the variable section structure is adopted in the implementation, and the section change rate is less than or equal to 12%; the B-pillar reinforcement pipe 41 may be of an equal thickness or a variable thickness structure, and in order to reduce the cost, an equal thickness structure is used in this embodiment.

Further, the B-pillar reinforcement tube 41 is further provided with a weight-reducing liquid leakage hole, which is convenient for coating liquid leakage and reducing the mass of the B-pillar reinforcement assembly 4.

In the utility model, as the B-pillar reinforcing pipe 41 adopts the sealed hot air expansion pipe, compared with the traditional structure, the cross section size of the B-pillar reinforcing pipe 41 is reduced, so that the structural strength of the B-pillar reinforcing pipe 41 is improved, the smaller cross section size can meet the original structural strength and performance, and the arrangement of a plurality of original reinforcing pieces is canceled, thereby reducing the weight of the B-pillar reinforcing piece assembly 4 and further reducing the weight of the side wall assembly; and the occupied space of the B-pillar reinforcement assembly 4 is reduced, which is beneficial to increasing the front and rear door opening space and improving the convenience of passengers in and out.

The structural strength of the B-pillar reinforcement tube 41 and the B-pillar upper reinforcement 42 is higher than that of the B-pillar lower reinforcement 43, and the B-pillar lower reinforcement 43 absorbs energy at the initial stage of collision when side collision, which is advantageous for improving the side collision performance.

Referring to fig. 8 and 9, the side wall rear inner plate welding assembly 5 includes a side wall rear upper inner plate 51, a rear wheel drum outer plate 52 and a C pillar reinforcing tube 53, the bottom of the side wall rear upper inner plate 51 is welded with the rear wheel drum outer plate 52, the C pillar reinforcing tube 53 is connected to the side wall rear upper inner plate 51 and the rear wheel drum outer plate 52, specifically, nuts 54 are welded on mounting holes of the C pillar reinforcing tube 53, and the nuts 54 are screwed through the side wall rear upper inner plate 51 or the rear wheel drum outer plate 52 by bolts 55; one end of the side wall rear upper inner plate 51, which is far away from the rear wheel drum outer plate 52, is connected with the rear connecting plate 34, and one end of the rear wheel drum outer plate 52, which is far away from the side wall rear upper inner plate 51, is connected with the side wall threshold reinforcement assembly 7.

The C-pillar reinforcement pipe 53 is a closed hot air expansion pipe, in this embodiment, the C-pillar reinforcement pipe 53 is formed by a hot air expansion process, the tensile strength can reach 1500-2000MPa, in this embodiment, the C-pillar reinforcement pipe is formed by a hot air expansion forming process, which includes pipe making, pre-bending, pre-forming, heating, hot air expansion forming, trimming and hole cutting, wherein the pipe making in the process is preferably a seamed steel pipe. The material adopted for the tube making of the C column reinforcing tube 53 can be a plating plate or a common plate, and in order to reduce the cost, the common plate is adopted in the implementation; the C column reinforcing pipe 53 can be of a constant section or variable section structure, and in order to flexibly match and avoid peripheral parts, the variable section structure is adopted in the implementation, and the section change rate is less than or equal to 12%; the C-pillar reinforcement pipe 53 may be of an equal thickness or a variable thickness structure, and in order to reduce the cost, an equal thickness structure is used in this embodiment.

In the utility model, the C column reinforcing pipe 53 adopts a sealed hot air expansion pipe, so that the strength of the side wall rear inner plate welding assembly 5 is improved, and the safety performance of the rear row of the vehicle is improved.

In addition, it should be noted that the conventional side wall rear inner panel welding assembly 5 does not have a reinforcement or is reinforced in a local small area, and the rear door opening area cannot form a closed reinforcement ring structure, which is not beneficial to the improvement of the bending and torsion properties of the vehicle body and the protection of rear passengers. The two ends of the side wall rear inner plate welding assembly 5 are respectively connected with the A column upper reinforcement assembly 3 and the side wall threshold reinforcement assembly 7, and the rear door opening is formed into a reinforcing ring structure, so that the side wall assembly comprises three reinforcing ring structures, namely a total reinforcing ring structure, a front door opening reinforcing ring structure and a rear door opening reinforcing ring structure, and the side wall rear inner plate welding assembly is good in bending resistance and torsion resistance, and meanwhile, the transmission of collision force can be better realized, the collision performance of a vehicle is improved, the strength of the side wall assembly is improved, and the safety performance of the vehicle body is further improved.

Referring to fig. 10 to 11, the sill reinforcement beam assembly 6 includes a sill reinforcement pipe 61, a sill connecting member 62, and a sill reinforcement beam 63, wherein the bottom of the sill reinforcement pipe 61 is connected to the lower body sill 101 through the sill connecting member 62, and the other end is connected to the sill reinforcement beam 63.

The threshold reinforcement tube 61 is a closed hot air expansion tube, the material adopted by the threshold reinforcement tube 61 can be a plating plate or a common plate, and in order to reduce the cost, the common plate is adopted in the embodiment; the threshold reinforcing pipe 61 can be made of a constant cross section or a variable cross section structure, and in the embodiment, the constant cross section is adopted; the threshold reinforcing pipe 61 may be of an equal thickness or a variable thickness structure, and in this embodiment, an equal thickness structure is used for cost reduction.

Further, the threshold reinforcing pipe 61 is provided with a leakage weight reducing hole, which is favorable for weight reduction of parts, and the threshold reinforcing pipe 61 is also provided with a glue coating rib, so that the threshold reinforcing pipe 61 is convenient for coating structural glue and connecting with the lower vehicle body threshold 101.

The threshold connecting piece 62 is an L-shaped bracket, the upper surface of the L-shaped bracket is connected with the threshold reinforcement pipe 61, and the side surface of the L-shaped bracket is connected with the lower vehicle body threshold 101 by spot welding, specifically by adopting a bolt and a nut.

The cross-section of threshold stiffening beam 63 is the U-shaped, threshold stiffening pipe 61 is connected with the open end of threshold stiffening beam 63, causes threshold stiffening beam assembly 6 to form two enhancement chambeies, and specifically, first enhancement chambeies constitute with threshold stiffening beam 63 and threshold stiffening pipe 61 side of U-shaped, because threshold stiffening pipe 61 is the steam expand tube of confined form, has the second and strengthens the chamber, during the collision, first enhancement chamber can fully absorb the impact energy that the initial stage produced of collision, and the second is strengthened the chamber and is provided good structural strength, reduces the in-vehicle deformation, is favorable to the promotion of side to bump and post collision performance.

The structural strength of the threshold reinforcing pipe 61 is greater than that of the threshold reinforcing beam 63, and the threshold reinforcing beam 63 absorbs energy in the initial stage of collision, thereby being beneficial to the improvement of side collision performance.

Energy-absorbing ribs 631 are arranged on two side surfaces of the threshold reinforcement beam 63, so that collision, collapse and energy absorption are facilitated.

The threshold reinforcing beam 63 is provided with a liquid leakage lightening hole and wavy sawtooth edges, which is beneficial to lightening the weight of parts.

The threshold reinforcement beam assembly 6 may be provided throughout the entire threshold area, or may be provided in sections in the threshold area below the front and rear door openings, and in this embodiment, the entire threshold area is provided throughout.

In this embodiment, the a-pillar reinforcing pipe 26, the a-pillar upper reinforcing pipe 31, the B-pillar reinforcing pipe 41, the C-pillar reinforcing pipe 53, and the threshold reinforcing pipe 61 are formed by a thermal inflation process, so that the structural strength is high, and the structural strength of the side wall assembly is ensured.

The A column reinforcement assembly 3 is connected with the A column reinforcement assembly 2 through the A column reinforcement pipe 31, the A column reinforcement pipe 26 is arranged in the A column reinforcement assembly 2, the A column reinforcement assembly 2 is indirectly connected with the threshold reinforcement beam assembly 6 therein through the inner threshold reinforcement and the outer threshold reinforcement, when a front collision happens, the collision force is transferred to the A column reinforcement assembly 2, and the A column reinforcement assembly 2 is transferred to the A column reinforcement assembly 3 and the threshold area, so that deformation of a passenger cabin can be reduced, and the protection of the vehicle to drivers and passengers under the front collision or small offset collision working condition is improved.

The upper end of the B-pillar reinforcement assembly 4 is connected with the A-pillar reinforcement assembly 3 through the B-pillar upper reinforcement 42, the lower end is connected with the side wall threshold reinforcement assembly 7 through the B-pillar lower reinforcement 43, when a side collision happens, the structural strength of the B-pillar upper reinforcement 42 and the B-pillar reinforcement tube 41 is higher than that of the B-pillar lower reinforcement 43, the B-pillar lower reinforcement 43 absorbs the energy of the initial collision period, and the collision force is transmitted to the inner threshold reinforcement beam assembly 6 through the side wall threshold reinforcement assembly 7, the threshold reinforcement beam assembly 6 is provided with 2 reinforcement cavities, the threshold reinforcement beam 63 absorbs the energy of the initial collision period because the structural strength of the threshold reinforcement tube 61 is higher than that of the threshold reinforcement beam 63, the second reinforcement cavity provides good structural strength, reduces the deformation in the vehicle, and improves the protection of the vehicle to drivers and passengers under the side collision condition. The A column reinforcing part assembly 3 is connected with the A column reinforcing part assembly 2 through the A column reinforcing pipe 31, the rear end is connected with the side wall rear door plate welding assembly 5 through the rear connecting plate 34, the top supporting strength is high, and the jacking performance of the vehicle is improved

Referring to fig. 13 to 14, in the area where the side wall outer plate 1 is connected with the a-pillar upper reinforcement assembly 2, there is a position where only a single-layer plate of the side wall outer plate 1 provides the mounting edge of the door frame sealing strip 103, and the side wall outer plate 1 is provided with an anti-drop boss 11 with a certain distance, so that the thickness of the single-layer sheet metal is insufficient and the thickness of other areas is different by the protruding height of the anti-drop boss 11, so that the door frame sealing strip 103 is prevented from dropping.

The anti-drop boss 11 on the side wall planking 1 and the side wall planking 1 pass through mould stamping forming together, do not increase extra shaping process, the side wall planking 1 sets up a plurality of anti-drop bosses 11 along the installation boundary of door frame sealing strip 103, anti-drop boss 11 interval distance L1 is less than or equal to 80mm, interval distance arrangement has avoided sealing strip assembly in-process plug force too big, difficult assembly problem.

Further, the protruding direction of the anti-falling boss 11 of the side wall outer plate 1 is the direction from the outside to the inside of the automobile, the missing part of the welding edge is replaced, the depth D1 of the anti-falling boss 11, the thickness T1 of the A column reinforcing piece 21 is less than or equal to D1 and less than or equal to the sum of the thickness T1 of the A column reinforcing piece 21 and the thickness T2 of the A column inner plate assembly 23, the size of the depth D1 of the anti-falling boss 11 is in smooth transition according to the thickness of the parts at two sides, and the problems of abrupt change of gaps of sealing strips and poor sealing performance caused by larger change of the assembly thickness of the sealing strips are avoided.

Further, the width W1 of the anti-falling boss 11 on the side wall outer plate 1 is 10-20 mm, the round angle R1 of the anti-falling boss 11 is 1.5-3.5 mm, the length of the anti-falling boss 11 is matched with the clamping size of the door frame sealing strip 103, the sealing strip clamping foot is guaranteed to cover the boss round angle part, and the installation firmness is improved.

Further, the side wall outer plate 1 is made of a deep-drawing cold-ligating double-layer hot-dip galvanized DC series steel plate, the thickness T3 of a galvanized layer of the hot-dip galvanized steel plate is larger than or equal to 45/45g/m < 2 >, and the corrosion resistance of the side wall outer plate 1 is improved.

The whole or part of the structure in the side wall assembly can realize the transplanting, copying or imitation of different vehicle types, and is suitable for various automobile safety systems with different complexity degrees.

Referring to fig. 15, the present utility model further provides a vehicle body structure, which includes the above side wall assembly, and a lower vehicle body assembly 104, a roof assembly 105, and a rear skirt welding assembly 106, wherein the two sets of side wall assemblies are respectively connected through the lower vehicle body assembly 104, the roof assembly 105, and the rear skirt welding assembly 106 to form the vehicle body structure.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

The above-described embodiments merely represent embodiments of the utility model, the scope of the utility model is not limited to the above-described embodiments, and it is obvious to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (7)

1. An a-pillar reinforcement assembly, characterized in that: the device comprises an A column reinforcing piece, an A column upper hinge reinforcing plate, an A column upper hinge mounting reinforcing piece, an A column lower hinge mounting reinforcing piece and an A column reinforcing pipe, wherein the A column reinforcing piece is provided with the A column upper hinge reinforcing plate, the A column lower hinge mounting reinforcing piece and the A column reinforcing pipe, and the A column upper hinge mounting reinforcing piece is arranged on the A column upper hinge reinforcing plate;

the A column reinforcing pipe is a closed hot air expansion pipe.

2. An a-pillar reinforcement assembly as set forth in claim 1, wherein: the A column reinforcing pipe is fixedly connected with the A column reinforcing piece through remote laser welding.

3. An a-pillar reinforcement assembly as set forth in claim 1, wherein: a lightening hole and a weeping hole are formed in the A column reinforcing pipe.

4. An a-pillar reinforcement assembly as set forth in claim 1, wherein: and the A column upper hinge reinforcing plate and the A column reinforcing piece are integrally formed.

5. An a-pillar reinforcement assembly as set forth in claim 1, wherein: and the A column reinforcing piece is welded with an A column limiter mounting reinforcing piece.

6. An a-pillar reinforcement assembly as set forth in claim 1, wherein: and the A column reinforcement is also welded with a front support of the A column reinforcement.

7. An a-pillar reinforcement assembly as set forth in claim 1, wherein: and a side wall front outer plate is welded on the A column reinforcement.