CN112896323A - Cage-shaped framework structure of vehicle body - Google Patents

Abstract

The invention discloses a cage-shaped framework structure of a vehicle body, which comprises: side wall assembly, the side wall assembly includes A post assembly, roof side rail assembly, B post assembly, C post assembly, threshold roof beam assembly, a rear wheel casing supporting beam assembly, A post assembly roof side rail assembly C post assembly threshold roof beam assembly with rear wheel casing supporting beam assembly splices into overall frame by the aluminium alloy that is equipped with the strengthening rib in inside cavity and the die cavity, B post assembly includes B post inner panel, B post planking, B post inner panel with B post planking comprises the steel sheet, and connects through spot welding, the top and the bottom of B post assembly respectively with roof side rail assembly with threshold roof beam assembly can dismantle the connection. The cage-shaped framework structure of the vehicle body provided by the embodiment of the invention has the advantages of light weight, good overall rigidity performance and excellent collision safety performance.

Description

Cage-shaped framework structure of vehicle body

Technical Field

The invention relates to the technical field of vehicles, in particular to a cage-shaped framework structure of a vehicle body.

Background

With the development of the automobile industry, the automobile consumption is directly influenced by the importance of the automobile body, but at present, the automobile body framework is mainly formed by welding thin steel plates, so that the weight is large, the number of parts is large, and the structure is complex.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a cage-shaped framework structure of a vehicle body, which has the advantages of good overall rigidity performance, excellent collision safety performance and light weight.

The cage-shaped framework structure of the vehicle body according to the embodiment of the invention comprises: side wall assembly, the side wall assembly includes A post assembly, roof side rail assembly, B post assembly, C post assembly, threshold roof beam assembly, a rear wheel casing supporting beam assembly, A post assembly roof side rail assembly C post assembly threshold roof beam assembly with rear wheel casing supporting beam assembly splices into overall frame by the aluminium alloy that is equipped with the strengthening rib in inside cavity and the die cavity, B post assembly includes B post inner panel, B post planking, B post inner panel with B post planking comprises the steel sheet, and connects through spot welding, the top and the bottom of B post assembly respectively with roof side rail assembly with threshold roof beam assembly can dismantle the connection.

According to the cage-shaped framework structure of the automobile body, the A-pillar assembly, the top edge beam assembly, the C-pillar assembly, the threshold beam assembly and the rear wheel cover supporting beam assembly are spliced into an overall framework by the aluminum profiles which are hollow inside and provided with the reinforcing ribs in the cavities, so that the cage-shaped framework structure of the automobile body is light in overall weight, good in overall rigidity performance and excellent in collision safety performance. In addition, the B-pillar assembly is composed of a B-pillar inner plate and a B-pillar outer plate which are composed of steel plates, and is detachably connected with the roof side beam assembly and the threshold beam assembly, so that the B-pillar assembly has higher yield strength, and the safety factor of the cage-shaped framework structure of the automobile body is further improved.

In addition, the cage-shaped framework structure of the vehicle body can also have the following additional technical characteristics:

in some embodiments of the present invention, the roof side rail assembly includes a roof side rail body and a B-pillar upper connecting plate, the roof side rail body includes a hollow pipe body surrounded by a plurality of side walls and a first reinforcing rib disposed in the hollow pipe body, the first reinforcing rib divides an inner cavity of the hollow pipe body into a plurality of independent cavities, a top portion of the B-pillar assembly is riveted with a first side wall of the roof side rail body, and both ends of the B-pillar upper connecting plate are respectively bolted with the B-pillar inner plate and a second side wall of the roof side rail body, wherein the first side wall and the second side wall are spaced apart.

In some embodiments of the present invention, the rocker beam assembly includes a rocker beam body including a hollow tubular body surrounded by a plurality of sidewalls and a second stiffener disposed within the hollow tubular body, the second stiffener dividing an interior cavity of the hollow tubular body into a plurality of separate cavities, the B-pillar inner panel riveted to a third sidewall of the rocker beam body, the B-pillar outer panel riveted to a fourth sidewall of the rocker beam body, wherein the third sidewall and the fourth sidewall are spaced apart.

Optionally, the top and the bottom of the B-pillar assembly are respectively connected with the roof side beam assembly and the threshold beam assembly through rivet-fit structural adhesive.

In some embodiments of the present invention, the cage-shaped skeleton structure further includes a lower assembly, the lower assembly includes a front cabin assembly, the front cabin assembly is spliced into an overall frame by aluminum profiles which are hollow inside and provided with reinforcing ribs in cavities, and the front cabin assembly includes: the energy absorption box is arranged between the anti-collision beam and the front longitudinal beam, the front longitudinal beam sequentially comprises a front longitudinal beam front section, a front longitudinal beam middle section and a front longitudinal beam rear section from front to back, the front reinforcing beam penetrates through the front longitudinal beam rear section, and at least part of the front longitudinal beam rear section and at least part of the front reinforcing beam are bent downwards.

The front cabin assembly further comprises a front baffle lower beam and a front baffle reinforcing beam, wherein the front baffle lower beam and the front baffle reinforcing beam are both formed by aluminum profiles which are hollow inside and provided with reinforcing ribs in cavities, an upper cavity and a lower cavity are formed in the front baffle lower beam, and the front baffle reinforcing beam is arranged in the upper cavity and/or the lower cavity.

In some embodiments of the present invention, the cage-shaped framework structure further includes a lower assembly, the lower assembly includes a front floor assembly, the front floor assembly is spliced into an overall frame by an aluminum profile which is hollow inside and provided with a reinforcing rib in a cavity, the front floor assembly includes: the middle-channel longitudinal beam comprises a threshold inner beam, two middle-channel longitudinal beams, a front seat front cross beam, a front seat rear cross beam and a middle-channel longitudinal beam rear section, wherein the number of the threshold inner beam and the number of the middle-channel longitudinal beams are two, the two middle-channel longitudinal beams are arranged between the two threshold inner beams, the front seat front cross beam transversely penetrates through the middle-channel longitudinal beams, the two ends of the front seat front cross beam and the two ends of the front seat rear cross beam are respectively abutted against the threshold inner beams, the two front ends of the middle-channel longitudinal beams are respectively abutted against a front baffle lower cross beam, and the two rear ends of the middle-channel longitudinal beams are respectively abutted against the front seat rear cross beam.

In some embodiments of the present invention, the cage body frame structure further comprises a lower assembly comprising a rear floor assembly comprising a rear rail assembly, the rear rail assembly comprising: the rear longitudinal beam front section and the rear longitudinal beam rear section are connected through a rear longitudinal beam lower sealing plate, an obtuse angle is formed between the rear longitudinal beam front section and the rear longitudinal beam rear section, and an obtuse angle is formed between the rear longitudinal beam front section and a rear floor front cross beam.

In some embodiments of the present invention, the cage-shaped frame structure further comprises a roof assembly, wherein the roof assembly comprises a roof body and a roof rear connecting plate, and the roof body and the roof rear connecting plate are connected by spot welding.

Specifically, the top cover assembly further comprises: the front top cross beam is positioned at the front end of the top cover body, the left end and the right end of the front top cross beam are respectively connected with the front ends of the left side wall assembly and the right side wall assembly, and the front side and the rear side of the front top cross beam are respectively used for installing front windshield glass and installing a skylight reinforcing plate; the back top beam is positioned at the rear end of the top cover rear connecting plate, the left end and the right end of the back top beam are respectively connected with the rear ends of the left side wall assembly and the right side wall assembly, and a back door hinge mounting point is further formed on the back top beam, wherein the front top beam and/or the back top beam are/is an aluminum profile extrusion molding part, and the front top beam is a closed section of three cavities.

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

Drawings

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

FIG. 1 is an exploded view of a cage framework structure of a vehicle body according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a cage framework structure of a vehicle body according to an embodiment of the invention;

FIG. 3 is a side view of a cage car body frame structure according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a side wall assembly of the cage frame structure of the vehicle body according to an embodiment of the invention;

FIG. 5 is a schematic structural view of a B-pillar assembly of a cage framework structure of a vehicle body according to an embodiment of the invention;

FIG. 6 is a schematic structural view of a C-pillar assembly of a cage framework structure of a vehicle body according to an embodiment of the invention;

FIG. 7 is a cross-sectional view of a C-pillar assembly of the vehicle body cage framework structure in accordance with an embodiment of the present invention;

FIG. 8 is a schematic structural view of an A-pillar assembly of the cage framework structure of the vehicle body according to an embodiment of the present invention;

FIG. 9 is a schematic illustration of the assembly of a B-pillar assembly and a roof side rail assembly of a vehicle body cage framework structure in accordance with an embodiment of the present invention;

FIG. 10 is a schematic structural view of a roof side rail body of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 11 is a cross-sectional view of a roof rail body of the vehicle body cage framework structure in accordance with an embodiment of the present invention;

FIG. 12 is a structural schematic view of a rocker beam assembly of the cage frame structure of the vehicle body according to an embodiment of the present invention;

FIG. 13 is a cross-sectional view of a rocker beam assembly of the vehicle body cage frame structure according to an embodiment of the present invention;

FIG. 14 is a schematic illustration of the assembly of a rocker beam assembly and a B-pillar assembly of a cage frame structure for a vehicle body in accordance with an embodiment of the present invention;

FIG. 15 is a schematic structural view of a front door opening inner top end and a front door opening outer top end of a vehicle body cage framework structure according to an embodiment of the invention;

FIG. 16 is a schematic structural view of a side window outer panel assembly of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 17 is a schematic structural view of a lower assembly of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 18 is a schematic illustration of an assembly of an impact beam and energy absorption box of the vehicle body cage frame structure in accordance with an embodiment of the present invention;

FIG. 19 is a schematic structural view of a crash box of the vehicle body cage frame construction according to an embodiment of the present invention;

fig. 20 is a structural schematic view of a front side member of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 21 is a side view of a front side member of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 22 is a front elevational view of a front side member of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

fig. 23 is a structural view of a lower portion of a rear section of a front side member of a cage skeleton structure of a vehicle body according to an embodiment of the invention;

FIG. 24 is a schematic view showing the assembly of the lower rear end portion of the front side member of the cage skeleton structure of a vehicle body with the front reinforcing member according to the embodiment of the invention;

FIG. 25 is a side view of a front compartment assembly of the vehicle body cage framework structure according to an embodiment of the present invention;

FIG. 26 is a cross-sectional view taken along A-A of FIG. 25;

FIG. 27 is a cross-sectional view taken along line B-B of FIG. 25;

FIG. 28 is a cross-sectional view taken along line C-C of FIG. 25;

FIG. 29 is a cross-sectional view taken along line D-D of FIG. 25;

FIG. 30 is a structural schematic view of a front side member rear section of the vehicle body cage framework structure according to the embodiment of the invention;

FIG. 31 is a schematic structural view of a front floor assembly of the cage framework structure of the vehicle body according to the embodiment of the invention;

FIG. 32 is a schematic structural view of a rear side rail assembly of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 33 is an assembled view of a rear side member front end reinforcing beam of the vehicle body cage frame structure according to the embodiment of the invention;

FIG. 34 is a structural view of the front end of the rear side member of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 35 is a schematic cross-sectional view of the front end of the rear side member of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

fig. 36 is a schematic structural view of a rear side member front end reinforcing beam of the vehicle body cage skeleton structure according to the embodiment of the invention;

FIG. 37 is a cross-sectional view of a rear side member front end reinforcing beam of the vehicle body cage framework structure according to the embodiment of the invention;

FIG. 38 is a structural schematic view of a rear side member rear section of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 39 is a cross-sectional schematic view of a rear side member rear section of the vehicle body cage framework structure according to the embodiment of the invention;

FIG. 40 is a schematic structural view of a roof assembly of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 41 is a schematic structural view of a front top cross member of the cage skeleton structure of the vehicle body according to the embodiment of the invention;

FIG. 42 is a cross-sectional schematic view of a front roof rail of the vehicle body cage framework structure in accordance with an embodiment of the present invention;

fig. 43 is a structural schematic view of a rear roof cross member of the cage skeleton structure of the vehicle body according to the embodiment of the invention.

Reference numerals:

100. a cage-shaped framework structure of the vehicle body; 10. a front cabin assembly; 20. a front floor assembly; 30. a rear floor assembly; 40: a side wall assembly; 60. a top cover assembly; 101. a lower assembly;

1101. an anti-collision beam; 1102. an energy absorption box; 1103. mounting a plate; 1104. a front impact sensor mounting bracket; 1105. a collision collapse inducing channel;

1200. a front longitudinal beam; 1201. a front end plate; 1202. a front longitudinal beam front section; 1210. a front longitudinal beam rear section; 1203. the upper part of the rear section of the front longitudinal beam; 1204. the lower part of the rear section of the front longitudinal beam; 1205. a rear closing plate; 1206. obliquely supporting; 1207. a front stiffening beam;

1300. a front baffle lower beam; 1301. a front fender stiffening beam;

2101. a threshold inner beam; 2102. a center channel stringer; 2103. a middle channel longitudinal beam rear section; 2104. a front seat front cross member; 2105. a front seat rear cross member;

3310. a rear longitudinal beam assembly; 3301. a rear longitudinal beam front section; 3302. a rear longitudinal beam rear section; 3303. a rear longitudinal beam lower sealing plate; 3304. a rear longitudinal beam front section stiffening beam; 3305. a rear longitudinal beam front section reinforcing plate; 3306. a rear security mounting bracket; 3320. a rear wheel house support beam assembly; 3330. a rear floor front cross member;

4101. an A column assembly; 4102. a roof side rail assembly; 4103. a B-pillar assembly; 4104. a threshold beam assembly; 4105. a C-pillar assembly; 4106. a side window outer panel assembly;

4201. a front wheel cover front support beam; 4202. a stiffening beam inner plate is arranged on the front wheel cover; 4203. the front wheel covers the upper supporting beam; 4204. a column A front inclined strut; 4205. an upper sealing plate of the A column; 4206. a column A body; 4207. a front door limiter mounting block; 4208. a front door hinge mounting block; 4209. a fender mounting bracket;

4310. a roof side rail body; 4301. a first side wall; 4302. a second side wall; 4303. a first reinforcing rib; 4304. a fifth side wall; 4320. an upper connecting plate of the B column;

4401. a B-pillar outer plate; 4402. a B-pillar reinforcement plate; 4403. b column inner plates;

4501. riveting; 4503. a top cover body; 4504. a bolt;

4601. a front lifting block; 4602. mounting points of a lifting appliance; 4603. a sill beam body; 4604. a rear lifting block; 4605. a protrusion;

4703. a second reinforcing rib; 4704. a third side wall; 4705. a fourth side wall; 4706; a door opening lower spigot; 4801. structural adhesive;

4901. an upper seam allowance is arranged in the front door opening; 4902. a front door opening is externally provided with a seam allowance;

6102. a luggage rack mounting bracket; 6103. a corner trim panel mounting bracket; 6104. a top cover rear connecting plate; 6105. a front top cross beam; 6106. a rear top cross beam;

6201. a roof rear support beam; 6202. a back door hinge support beam; 6203. a back door hinge mounting block; 6204. back door opening upper seam allowance; 6205. backdoor gas spring mounting panel.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element 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 terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A cage skeleton structure 100 of a vehicle body according to an embodiment of the present invention is described below with reference to fig. 1 to 43.

As shown in fig. 1 to 4, a cage-shaped vehicle body framework structure 100 according to an embodiment of the present invention includes a side gusset assembly 40, wherein the side gusset assembly 40 includes: the A-pillar assembly 4101, the roof side rail assembly 4102, the B-pillar assembly 4103, the C-pillar assembly 4105, the threshold beam assembly 4104 and the rear wheel cover support beam assembly 3320, wherein the A-pillar assembly 4101, the roof side rail assembly 4102, the C-pillar assembly 4105, the threshold beam assembly 4104 and the rear wheel cover support beam assembly 3320 are all spliced into an overall frame by aluminum profiles which are hollow inside and provided with reinforcing ribs in cavities, so that the rigidity of the A-pillar assembly 4101, the roof side rail assembly 4102, the C-pillar assembly 4105, the threshold beam assembly 4104 and the rear wheel cover support beam assembly 3320 is improved, the overall rigidity performance of the side wall assembly 40 is enhanced, and therefore, when the vehicle body bears a side collision, the side wall assembly 40 has better collision safety performance, the deformation amount of the side wall assembly 40 can be better reduced, that is, the intrusion amount of the side wall assembly 40 towards the internal space of the vehicle body can be better reduced, and the living space of the interior of the vehicle body can be ensured, the safety of drivers and passengers is guaranteed, the safety of the cage-shaped framework structure 100 of the automobile body is improved, and the structure is coherent.

On the other hand, the extrusion difficulty of the aluminum profile is lower, the production difficulty of the A-pillar assembly 4101, the top edge beam assembly 4102, the C-pillar assembly 4105, the threshold beam assembly 4104 and the rear wheel cover supporting beam assembly 3320 is reduced, and on the premise of ensuring the integral rigidity performance of the side wall assembly 40 structure, the aluminum profile has lighter weight, meets the requirement of the car body cage-shaped framework structure 100 for light weight, is favorable for reducing the power consumption of vehicle running, and is energy-saving and environment-friendly.

As shown in fig. 5, the B-pillar assembly 4103 includes a B-pillar inner panel 4403 and a B-pillar outer panel 4401, specifically, the B-pillar inner panel 4403 and the B-pillar outer panel 4401 are both made of steel plates, the B-pillar inner panel 4403 and the B-pillar outer panel 4401 both have high yield strength, and the B-pillar inner plate 4403 and the B-pillar outer plate 4401 are connected by spot welding, the connection strength of the B-pillar inner plate 4403 and the B-pillar outer plate 4401 is improved, so that the B-pillar assembly 4103 has higher yield strength, wherein it can be understood that the B-pillar has a better protective effect on the vehicle body space when the vehicle body is subjected to a side collision, therefore, the B-pillar assembly 4103 can better reduce the intrusion amount during side collision, not only ensure the safety space of drivers and passengers in the vehicle, but also better avoid the safety risk that vehicle components such as a battery pack receive extrusion due to the large intrusion amount, and improve the safety factor of the vehicle body cage-shaped framework structure 100.

Further, the top and the bottom of the B-pillar assembly 4103 are detachably connected with the top edge beam assembly 4102 and the threshold beam assembly 4104 respectively, so that the assembly difficulty and the later maintenance difficulty of the B-pillar assembly 4103 are reduced, the assembly flexibility of the vehicle body is improved, the structural continuity of the B-pillar assembly 4103, the top edge beam assembly 4102 and the threshold beam assembly 4104 is improved, the connecting strength of the middle positions in the front-back direction of the top edge beam assembly 4102 and the threshold beam assembly 4104 is ensured, and the integral structural strength of the side wall assembly 40 is improved.

According to the cage-shaped framework structure 100 of the vehicle body, the A-pillar assembly 4101, the top edge beam assembly 4102, the C-pillar assembly 4105, the threshold beam assembly 4104 and the rear wheel cover support beam assembly 3320 are all spliced into an overall framework by aluminum profiles which are hollow inside and provided with reinforcing ribs in cavities, so that the cage-shaped framework structure 100 of the vehicle body is light in overall weight, good in overall rigidity performance and excellent in collision safety performance. In addition, the B-pillar assembly 4103 is composed of a B-pillar inner panel 4403 and a B-pillar outer panel 4401 which are made of steel plates, and is detachably connected with the roof side rail assembly 4102 and the threshold beam assembly 4104, so that the B-pillar assembly 4103 has high yield strength, and the safety factor of the vehicle body cage-shaped framework structure 100 is further improved.

In some examples, referring to fig. 5, the B-pillar assembly 4103 further includes a B-pillar reinforcement plate 4402, the B-pillar reinforcement plate 4402 is disposed between the B-pillar inner plate 4403 and the B-pillar outer plate 4401, wherein the B-pillar outer plate 4401 is formed by hot stamping, the B-pillar inner plate 4403 and the B-pillar reinforcement plate 4402 are formed by cold stamping of a high-strength plate, and the B-pillar inner plate 4403, the B-pillar outer plate 4401 and the B-pillar reinforcement plate 4402 are all connected by resistance spot welding, so that the B-pillar assembly 4103 has higher yield strength, further reduces the intrusion amount of the vehicle body toward the interior of the vehicle body when the vehicle body is subjected to a side collision, and is beneficial to improving the safety.

In some examples, as shown in fig. 6 and 7, the cross section of the C-pillar assembly 4105 is a "japanese" shape, so that the C-pillar assembly 4105 has high rigidity and is light in weight, and the requirement of lightweight the C-pillar assembly 4105 is satisfied.

In a specific example, as shown in fig. 8, taking an a-pillar assembly 4101 on the left side of the cage-shaped skeleton structure 100 of the vehicle body as an example, the a-pillar assembly 4101 includes a front wheel house front support beam 4201 which is extruded from an aluminum profile and has a cavity inside, a front wheel house upper support beam 4203, an a-pillar front brace 4204, an a-pillar body 4206, a front door stopper mounting block 4207, a front door hinge mounting block 4208, and a front wheel house upper reinforcement beam inner panel 4202, an a-pillar upper closure plate 4205 and a fender mounting bracket 4209 which are made from aluminum plate stampings, so that the a-pillar assembly 4101 is made to be rigid and light in weight, and meets the requirement of light weight of the a-pillar assembly.

Specifically, an a-pillar main body 4206 extends in the up-down direction, an a-pillar upper sealing plate 4205 is welded to the upper end surface of the a-pillar main body 4206, front door checker mounting blocks 4207 are provided on the rear end surface of the a-pillar main body 4206, fender mounting brackets 4209 having a plurality of pieces are provided and are provided in the front portion of the left side wall of the a-pillar main body 4206 at intervals in the up-down direction, two front door hinge mounting blocks 4208 are provided and are provided at the upper and lower ends of the left side wall of the a-pillar main body 4206, respectively, a front wheel house upper support beam 4203 is provided in the front-rear direction, the rear end is connected to the upper portion of the front end surface of the a-pillar main body 4206, a front wheel house upper reinforcement beam inner plate 4202 is provided on the upper end surface of the front wheel house upper support beam 4203, the lower end surface of the front wheel house upper support beam 4203 is connected to the front end surface of the a-pillar main body 4206 by an a-pillar front diagonal support 4204, the front end surface of the, therefore, the a-pillar assembly 4101 can better constitute a receiving space for the front wheel, and has good rigidity and light weight.

In some embodiments of the present invention, as shown in fig. 9-11, the roof side rail assembly 4102 includes a roof side rail body 4310 and a B-pillar upper connecting plate 4320, the roof side rail body 4310 includes a hollow pipe body formed by surrounding a plurality of side walls and a first reinforcing rib 4303 disposed in the hollow pipe body, and the first reinforcing rib 4303 divides an inner cavity of the hollow pipe body into a plurality of independent cavities, so that the side walls connected to the first reinforcing rib 4303 have better bending strength, and the cavities have better energy absorption effect, thereby improving the deformation resistance of the roof side rail assembly 4102, providing good rigidity and lighter weight, and meeting the requirement of light weight of the roof side rail assembly 4102.

Further, the top of the B-pillar assembly 4103 is riveted with the first side wall 4301 of the roof side rail body 4310, and both ends of the B-pillar upper connecting plate 4320 are respectively bolted to the B-pillar inner plate 4403 and the second side wall 4302 of the roof side rail body 4310, wherein the first side wall 4301 and the second side wall 4302 are spaced apart, thereby improving the connection stability of the B-pillar assembly 4103 with the roof side rail body 4310, and ensuring stable transmission of collision force from the B-pillar assembly 4103 to the roof side rail body 4310.

In a specific example, as shown in fig. 11, the first reinforcing rib 4303 is a cross reinforcing rib, four end portions of the first reinforcing rib 4303 are respectively connected to four side walls of an inner cavity of the roof side rail body 4310, so as to divide the inner cavity of the roof side rail body 4310 into four independent cavities, wherein the first side wall 4301 and the second side wall 4304402 are oppositely disposed, an upper end of the B-pillar outer plate 1 is attached to an upper end of the B-pillar inner plate 4403, the B-pillar inner plate 4403 is attached to the first side wall 4301, a set of mounting holes is disposed on an attachment surface of the first side wall 4301 by machining or the like, mounting via holes corresponding to the mounting holes are disposed on attachment surfaces of the B-pillar outer plate 4401 and the B-pillar inner plate 4403, and therefore, the rivet 4501 is used to penetrate through each set of corresponding mounting via holes and mounting holes, so as to achieve fixed connection between the B-pillar 4103 and the first side wall 4301.

Further, the B-pillar upper connection plate 4320 is bent toward the B-pillar inner plate 4403 by a certain radian, so that the rigidity of the B-pillar upper connection plate 4320 is improved, the occupied space of the B-pillar upper connection plate 4320 is reduced, and the layout is reasonable. Wherein, the upper end and the laminating of second lateral wall 4302 of B post upper junction plate 4320, the lower extreme of B post upper junction plate 4320 and the laminating of the medial surface of B post inner panel 4403, on the second lateral wall 4302 binding surface and set up a set of mounting hole through modes such as machining on the B post inner panel 4403 binding surface, set up the installation via hole that corresponds with the mounting hole on B post upper junction plate 4320 upper end and lower extreme binding surface, through riveting the nut in every mounting hole, and use bolt 4504 to pass every installation via hole in proper order and correspond the nut in the mounting hole and cooperate, thereby realize the assembly of B post upper junction plate 4320 and second lateral wall 4302 and B post inner panel 4403, high reliability.

Wherein can understand because B post assembly 4103 is made for steel sheet material, and roof side rail body 4310 is made by the aluminium alloy, therefore, through the cooperation of bolt structure or riveted structure and the mounting hole that every group corresponds and installation via hole, the overlap joint problem of steel aluminium mixed structure has been solved, guaranteed B post assembly 4103 and roof side rail body 4310's joint strength, of course, can also be through using structure glue 4801 on a plurality of binding face to reinforcing joint strength.

In some embodiments of the present invention, as shown in fig. 12-14, the threshold beam assembly 4104 comprises a threshold beam body 4603, wherein the threshold beam body 4603 comprises a hollow tube body formed by surrounding a plurality of side walls and a second reinforcing rib 4703 arranged in the hollow tube body, and the second reinforcing rib 4703 divides the inner cavity of the hollow tube body into a plurality of independent cavities, so that the side walls connected by the second reinforcing rib 4703 have better bending strength, and the cavities have better energy absorption effect, thereby improving the deformation resistance, the rigidity and the weight of the threshold beam assembly 4104, and meeting the requirement of the threshold beam assembly 4104 for light weight.

Further, the B pillar inner panel 4403 is riveted to the third side wall 4704 of the rocker beam body 4603, the B pillar outer panel 4401 is riveted to the fourth side wall 4705 of the rocker beam body 4603, wherein the third side wall 4704 is spaced apart from the fourth side wall 4705, thereby improving the connection stability of the B pillar assembly 4103 and the roof side rail body 4310 to ensure that the collision force borne by the B pillar assembly 4103 can be stably transmitted to the rocker beam body 4603, thereby reducing the collision intrusion amount of the B pillar assembly 4103.

In a specific example, as shown in fig. 12 to 14, a rocker beam body 4603 is horizontally disposed in a front-rear direction, the rocker beam body 4603 is integrally extrusion-molded by using an aluminum type hollow tube and a second reinforcing bead 4703, the second reinforcing bead 4703 divides an inner cavity of the rocker beam body 4603 into a plurality of independent cavities having different cross sections, the rocker beam body 4603 has a plurality of side walls connected in sequence, a top surface of the rocker beam body 4603 is provided with a hollow protrusion 4605, the protrusion 4605 is integrally molded with the rocker beam body 4603, and a third side wall 4704 is a side of the protrusion 4605 facing an outside of a vehicle body.

That is to say, the protrusion 4605 is attached to the B-pillar inner panel 4403, a set of mounting holes is added to the attachment surface of the third side wall 4704 by a machining method, mounting through holes corresponding to the mounting holes are formed in the attachment surface of the B-pillar inner panel 4403, rivets 4501 are used to sequentially penetrate the mounting through holes and the corresponding mounting holes, the fixed connection between the B-pillar inner panel 4403 and the third side wall 4704 is completed, and structural adhesive 4801 is used on the attachment surfaces of the third side wall 4704 and the B-pillar inner panel 4403 to enhance the connection strength.

Further, the fourth side wall 4705 is the side wall of a side of the threshold beam body 4603 towards the outside of the vehicle body, the inside wall of the B-pillar outer panel 4401 is attached to the fourth side wall 4705, a set of mounting holes is added on the attachment surface of the fourth side wall 4705 through a machining method, the attachment surface of the B-pillar outer panel 4401 is provided with mounting through holes corresponding to the mounting holes, rivets 4501 are used to sequentially penetrate the mounting through holes and the corresponding mounting holes, the fixed connection of the B-pillar outer panel 4401 and the fourth side wall 4705 is completed, and structural adhesive 4801 is used on the attachment surfaces of the fourth side wall 4705 and the B-pillar outer panel 4401 to enhance the connection strength.

It can be understood that, because the B-pillar assembly 4103 is made of a steel plate material, and the threshold beam body 4603 is made of an aluminum profile, the overlapping problem of the steel-aluminum mixed structure is solved and the connection strength of the B-pillar assembly 4103 and the threshold beam body 4603 is ensured by matching the riveting structure and the structure glue 4801 with each group of corresponding mounting holes and mounting through holes.

In still another example, as shown in fig. 12, the threshold beam assembly 4104 further includes front lifting blocks 4601, spreader mounting points 4602, and rear lifting blocks 4604, the front end of the threshold beam body 4603 is welded to the lower end of the a-pillar assembly 4101, and the rear end of the threshold beam body 4603 is welded to the rear wheel house support beam assembly 3320, thereby ensuring the continuity of the side wall assembly 40 and the sealing of the entire cage frame structure 100.

Optionally, the top and bottom of the B-pillar assembly 4103 are connected with the roof side rail assembly 4102 and the threshold beam assembly 4104 through rivets 4501 and matched glue, thereby ensuring the connection strength and reliability at the key connection position, satisfying the connection requirement between different materials of steel and aluminum, and being easy to operate. Of course, the top and bottom of the B-pillar may be connected to the roof side rail assembly 4102 and the rocker beam assembly 4104 by a bolt structure and structural adhesive, without limitation.

In some examples, referring to fig. 12-15, the sidecar assembly 40 further includes a rabbet edge comprising a lower doorway rabbet 4706 provided on the ledge 4605 of the rocker beam body 4603, a doorway rabbet provided on the B-pillar assembly 4103, an inner upper doorway 4901 provided on the roof beam assembly 4102, and an outer upper doorway 4902. Specifically, the lower front edge 4706 of the doorway and the third side wall 4704 of the third side wall extend upward and are integrally formed with the sill beam body 4603, wherein the upper front inner edge 4901 and the upper front outer edge 4902 are both formed by punching aluminum plates, and on the premise of the same thickness, the lower front edge is lighter in weight and has high structural strength compared with the conventional steel plate edge.

In another example, as shown in fig. 16, the side wall assembly 40 further includes a side window outer plate assembly 4106, the side window outer plate assembly 4106 is mainly of an aluminum plate stamping structure, and has a light weight, and meets the requirement of light weight of the side wall assembly 40, specifically, the side window outer plate assembly 4106 provides an installation point for a C-pillar inner and outer guard plate and a wire harness, and isolates a passenger compartment inner and outer space, wherein the side window outer plate assembly 4106 is welded with the vehicle body cage-shaped framework structure 100 through laser welding, so that the welding deformation at the connection position is reduced, the energy consumption is low, and the connection efficiency is high.

In other embodiments of the present invention, the cage-shaped framework structure 100 of the vehicle body further includes a lower assembly 101, specifically, the lower assembly 101 includes a front cabin assembly 10, and the front cabin assembly 10 is an overall frame formed by splicing aluminum profiles which are hollow inside and provided with reinforcing ribs in cavities, so that the rigidity of the front cabin assembly 10 is good, the weight is light, and the requirement of the cage-shaped framework structure 100 of the vehicle body for light weight is met.

Specifically, the front hatch assembly 10 includes: as shown in fig. 17 to 19, the crash box 1102 is disposed between the crash beam 1101 and the front longitudinal beam 1200, so that when a vehicle is subjected to a frontal collision, a collision force borne by the crash beam 1101 is transmitted to the crash box 1102, and the crash box 1102 collapses, so that the collision force transmitted by the crash beam 1101 can be absorbed well.

In a specific example, as shown in fig. 19, a front collision sensor mounting bracket 1104 is arranged on an anti-collision beam 1101 to facilitate mounting of a sensor, two energy absorption boxes 1102 are arranged, the two energy absorption boxes 1102 are arranged along the length direction of the anti-collision beam 1101 and are respectively arranged on the rear side walls of two ends of the anti-collision beam 1101, the cross section of each energy absorption box 1102 is of a structure shaped like a Chinese character 'mu', and the energy absorption boxes 1102 are extruded and molded through aluminum profiles during manufacturing, so that the rigidity requirement of the energy absorption boxes 1102 is met, and the requirement of the front cabin assembly 10 for light weight is met. Further, referring to fig. 20 and 26, the side walls of the crash box 1102 and the reinforcing ribs are 2.4mm thick, two sets of crash collapse inducing grooves 1105 corresponding to each other on the left and right are formed in the side walls of the crash box 1102, and the crash collapse inducing grooves 1105 are formed in a circular shape, so that the crash box 1102 is sufficiently crushed in the crash process of the crash beam 1101, and the energy absorption effect of the crash box 1102 is further improved.

Further, as shown in fig. 20 to 24, the front side member 1200 includes a front side member front section 1202, a front side member middle section, and a front side member rear section 1210 in sequence from front to rear, the front reinforcement beam 1207 is disposed in the front side member rear section 1210, and at least a part of the rear end of the front side member 1200 and at least a part of the front reinforcement beam 1207 are bent downward, the front side member rear section 1210 is set to be in an inclined state, and the front side member front section 1202 and the front side member middle section extend from front to rear above the front side member rear section 1210, which is favorable for the transmission of the frontal collision force.

Furthermore, as shown in fig. 20, the front cabin assembly 10 further includes a lower front baffle beam 1300 and a reinforcing front baffle beam 1301, the lower front baffle beam 1300 and the reinforcing front baffle beam 1301 are both made of aluminum profiles with hollow interiors and reinforcing ribs in cavities, an upper cavity and a lower cavity are formed in the lower front baffle beam 1300, and the reinforcing front baffle beam 1301 is arranged in the upper cavity and/or the lower cavity, so that the lower front baffle beam 1300 has better rigidity and light weight, and the requirement of light weight of the front cabin assembly 10 is met.

That is, as shown in fig. 25 to 29, by providing the crash boxes 1102, the front side member front sections 1202, the downwardly bent front side member rear sections 1210, and adding the front reinforcing member 1207 inside the front side member rear sections 1210, the entire front deck assembly 10 is gradually collapsed in a stepwise manner in the forward and rearward direction when the vehicle body receives a front side collision, so that the collision intrusion amount of the front deck assembly 10 is reduced, and the safety factor is high.

Preferably, in a specific example, referring to fig. 17-30, a mounting plate 1103 is welded to one end, away from the impact beam 1101, of the energy absorption box 1102, a front end plate 1201 is welded to the front longitudinal beam front section 1202, positioning difficulty of the energy absorption box 1102 and the front end of the front longitudinal beam 1200 is reduced by cooperation of the front end plate 1201 and the mounting plate 1103, thicknesses of side walls and reinforcing ribs of the front longitudinal beam front section 1202 are 2.6mm, the front longitudinal beam front section 1202 and the front longitudinal beam rear section 1210 are arranged in the front-rear direction, and the front longitudinal beam front section 1202 and the front longitudinal beam rear section 1210 are located on the same straight line.

Wherein, the front longitudinal beam rear section 1210 comprises a front longitudinal beam rear section upper portion 1203 and a front longitudinal beam rear section lower portion 1204, the side wall thickness of the front longitudinal beam rear section upper portion 1203 is 2.8mm, the front longitudinal beam rear section lower portion 1204 forms two cavities, wherein, the side wall thickness of the upper cavity is 3.2mm, the side wall thickness of the lower cavity is 4mm, the bottom wall thickness of the lower cavity is 3.2mm, the thickness of the reinforcing rib between the upper cavity and the lower cavity is 2.5mm, the front reinforcing beam 1207 is arranged in the upper cavity in a penetrating manner, the side wall thickness of the front reinforcing beam 1207 is 4mm, the thickness of the reinforcing rib is 3mm, the front longitudinal beam rear section upper portion 1203 extends from front to rear, the front longitudinal beam rear section lower portion 1204 is a stretch-bending piece, the front longitudinal beam rear section lower portion 1204 extends from front to rear, the rear portion of the front longitudinal beam rear section lower portion is stretch-bent downwards relative to the front longitudinal beam rear section upper portion 1203, the lower end face of the front longitudinal beam rear section upper portion 1203 is, the influence of ordinary MIG welding on mechanical properties of materials is reduced, the rear sealing plate 1205 is welded at the bending position of the upper portion 1203 of the rear section of the front longitudinal beam and the lower portion 1204 of the rear section of the front longitudinal beam, the rear sealing plate 1205 is an aluminum plate stamping part, the strength of connection between the upper portion 1203 of the rear section of the front longitudinal beam and the lower portion 1204 of the rear section of the front longitudinal beam is improved, and the structure is attractive.

Further, the lower end of the lower portion 1204 of the rear section of the front longitudinal beam is fixedly connected with the lower cross beam 1300 of the front baffle, the lower end of the front reinforcing beam 1207 is welded with the lower cross beam 1300 of the front baffle, and inclined supports 1206 are respectively welded between the left side and the right side of the lower portion 1204 of the rear section of the front longitudinal beam and the front end face of the lower cross beam 1300 of the front baffle to form a corner support structure, so that the stability of a force transmission path in a collision process is guaranteed, and the active control of the load transmission path is realized.

Wherein, preceding baffle bottom end rail 1300 sets up along left right direction level, and preceding baffle bottom end rail 1300 is located between two threshold roof beams of side wall assembly 40, and through be equipped with preceding baffle stiffening beam 1301 in preceding baffle bottom end rail 1300's last die cavity, guarantees to transmit the impact on the threshold roof beam when the member cabin is safe in the collision process.

In some examples, as shown in fig. 23, the front side member rear section lower portion 1204 is formed by stretch bending together with the inner front reinforcing member 1207 and then machined, and the front side member rear section 1210 and the front reinforcing member 1207 are welded to the front fender lower cross member 1300, thereby achieving a reduction in weight while ensuring the strength of the front side member 1200.

In a further example, referring to fig. 1, the lower assembly 101 further includes a rear floor assembly 30, the rear floor assembly 30 including a rear floor front cross member 3330, a rear row seat cross member, an access cover cross member, a rear floor support beam, an access cover longitudinal member, and a rear back threshold beam.

In some embodiments of the present invention, as shown in fig. 17 and 31, the cage-shaped framework structure 100 of the vehicle body further includes a lower assembly 101, the lower assembly 101 includes a front floor assembly 20, and the front floor assembly 20 is an overall frame formed by splicing aluminum profiles which are hollow inside and provided with reinforcing ribs in cavities, so that compared with a conventional steel plate vehicle body, the cage-shaped framework structure of the vehicle body is simple and reliable, has low stamping difficulty and light weight, and meets the requirement of light weight of the front floor assembly 20.

Specifically, the front floor assembly 20 includes: threshold internal beams 2101, well passageway longeron 2102, front seat front beam 2104, front seat rear beam 2105, well passageway longeron back end 2103, threshold internal beams 2101 and well passageway longeron 2102 all are equipped with two, two well passageway longerons 2102 are located between two threshold internal beams 2101, front seat front beam 2104 transversely passes well passageway longeron 2102, the both ends of front seat front beam 2104 and the both ends of front seat rear beam 2105 all with two threshold internal beams 2101 butt joint, the front end of two well passageway longerons 2102 all with preceding fender lower beam 1300 butt joint, the rear end of two well passageway longerons 2102 all with front seat rear beam 2105 butt joint. Therefore, the floor can be horizontally lapped on the framework of the front floor assembly 20, the welding difficulty is low, the force bearing points of the front floor assembly 20 are mainly arranged on the section bar, and the requirement on lapped aluminum plate stamping parts is low.

In one specific example, as shown in fig. 31, the rocker inner beam 2101 is disposed in the front-rear direction, the front end of the rocker inner beam 2101 is connected to the front dash lower cross member 1300 of the front cabin assembly 10, the rear end is connected to the rear floor assembly 30, and the side faces are connected to the side wall assemblies 40. The middle channel longitudinal beam 2102 is located between the two threshold inner beams 2101, the middle channel longitudinal beam 2102 is parallel to the threshold inner beams 2101, the front end of the middle channel longitudinal beam 2102 is connected with a front baffle lower cross beam 1300 of the front cabin assembly 10, the rear end of the middle channel longitudinal beam 2102 is connected with a front seat rear cross beam 2105, the structure of the middle channel longitudinal beam 2102 is welded on the front baffle lower cross beam 1300, the connection area of the middle channel longitudinal beam 2102 and the front baffle lower cross beam 1300 is increased, the connection stability is guaranteed, the production requirements on the middle channel longitudinal beam 2102 and the front baffle lower cross beam 1300 are low, and the production cost is low.

Furthermore, the front seat front cross member 2104 is disposed in the lateral direction between the threshold inner members 2101 and the center tunnel side member 2102, the front seat front cross member 2104 is disposed in parallel with the front seat rear cross member 2105 between the threshold inner members 2101 on both sides, the front end surface of the front seat rear cross member 2105 is connected to the center tunnel side member 2102, and the rear portion thereof is connected to the center tunnel side member rear section 2103 disposed in the front-rear direction. The continuity of the front floor assembly 20 is ensured.

In other embodiments of the present invention, the cage skeleton structure 100 further comprises a lower assembly 101, the lower assembly 101 comprising a rear floor assembly 30, wherein the rear floor assembly 30 comprises a rear side rail assembly 3310, as shown in fig. 32, the rear side rail assembly 3310 comprising: back longeron anterior segment 3301, back longeron back end 3302 and back longeron anterior segment stiffening beam 3304, therefore, the anti deformability of back longeron anterior segment 3301 has been strengthened, make back longeron anterior segment 3301 when the transmission back longeron back end 3302 collision power that bears, be difficult for taking place deformation, thereby guarantee the dispersion of can transmitting steadily of the collision power on the back longeron back end 3302, structural strength is high, and simultaneously, can reduce the part quantity of longeron assembly 3310 behind the car betterly, do benefit to the equipment degree of difficulty that reduces back longeron assembly 3310 behind the car, weight is also lighter.

Wherein, the rear longitudinal beam front section 3301 and the rear longitudinal beam rear section 3302 are connected by the rear longitudinal beam lower sealing plate 3303, that is, when assembling and welding the automobile rear longitudinal beam assembly 3310, the welding end face of the rear longitudinal beam front section 3301 may be welded to one side of the rear longitudinal beam lower sealing plate 3303, the welding end face of the rear longitudinal beam rear section 3302 may be welded to the other side of the rear longitudinal beam lower sealing plate 3303, of course, the welding end face of the rear longitudinal beam rear section 3302 may be welded to one side of the rear longitudinal beam lower sealing plate 3303, the welding end face of the rear longitudinal beam front section 3301 may be welded to the other side of the rear longitudinal beam lower sealing plate 3303, the welding end faces of the rear longitudinal beam front section 3301 and the rear longitudinal beam rear section 3302 may be welded to two sides of the rear longitudinal beam lower sealing plate 3303, thereby, the positioning difficulty between the welding end face of the rear longitudinal beam front section 3301 and the welding end face of the rear longitudinal beam rear section 3302 may be reduced, the assembly and welding difficulty of the rear longitudinal beam assembly 3310 is reduced, and the rear longitudinal beam lower seal plate 3303 has less influence on the overall weight of the automobile rear longitudinal beam assembly 3310, so that the requirement of light weight of the rear longitudinal beam assembly 3310 is met.

Furthermore, an obtuse angle is formed between the front section 3301 of the rear longitudinal beam and the rear section 3302 of the rear longitudinal beam, and an obtuse angle is formed between the front section 3301 of the rear longitudinal beam and the front cross beam 3330 of the rear floor, so that when the rear of the vehicle body is collided and the rear section 3302 of the rear longitudinal beam is extruded by the collision from back to front, the collision force can be better transmitted and dispersed to the vehicle body through the front section 3301 of the rear longitudinal beam, the concentration of the collision force on the rear section 3302 of the rear longitudinal beam can be better avoided, the deformation amplitude of the rear section 3302 of the rear longitudinal beam is reduced when the collision occurs, and the shape of the rear longitudinal beam assembly 3310 of the vehicle is favorably maintained.

The two ends of the rear floor front cross beam 3330 are respectively connected between the side wall assemblies 40 on the two sides of the vehicle body, so that the deformation resistance between the side wall assemblies 40 on the two sides is enhanced, the reduction of the collision invasion amount on the two sides of the vehicle body is facilitated, and the safety is high.

In some examples, rear rail assembly 3310 further includes: rear longitudinal beam anterior segment reinforcing plate 3305 and back crowbar dress support 3306, rear longitudinal beam assembly 3310 is except that rear package installing support 3306 and rear longitudinal beam down shrouding 3303 are formed by aluminum plate punching press, all the other structures all adopt aluminium alloy hollow tube body and integrative punching press of strengthening rib to make, concretely, as shown in fig. 32, rear longitudinal beam anterior segment reinforcing beam 3304 locates rear longitudinal beam anterior segment 3301's bottom side, rear longitudinal beam anterior segment 3301 and rear longitudinal beam anterior segment reinforcing beam 3304's inboard is connected with rear longitudinal beam anterior segment reinforcing plate 3305, the outside is connected with side wall assembly 40, form a holistic frame, guarantee that drag arm and battery package mounting point have sufficient rigidity and intensity.

In one particular example, as shown in fig. 34 and 35, the rear rail forward section 3301 has five side walls of different widths, and the stiffener divides the interior cavity of the rear rail forward section 3301 into two separate cavities. As shown in fig. 36 and 37, the rear-side-member front-section reinforcing beam 3304 has three reinforcing beads to partition the internal cavity of the rear-side-member front-section reinforcing beam 3304 into four independent cavities. As shown in fig. 38 and 39, the cross-sectional area of the cavity in the upper portion of the rear side member front section 3302 is smaller than the cross-sectional area of the cavity in the lower portion.

Specifically, the front end side faces of the front end of the front section 3301 of the rear longitudinal beam and the front section 3304 of the rear longitudinal beam are welded with the threshold beam of the side wall assembly 40, and the rear section 3302 of the rear longitudinal beam is connected with the side wall assembly 40 through the rear wheel cover supporting beam assembly 3320, so that force is transmitted and dispersed to the side wall assembly 40 during rear collision, the living space of a rear-row passenger is guaranteed, and the safety of the passenger is prevented from being influenced by extrusion of a battery pack.

In other embodiments of the present invention, the cage-shaped frame structure 100 further includes a roof assembly 60, as shown in fig. 40, the roof assembly 60 includes a roof body 4503 and a roof rear connecting plate 6104, and the roof rear connecting plate 6103 is provided on the left and right sides of the rear end of the roof body 4503, so that the roof rear connecting plate 6104 and the roof body 4503 are separately provided, the structure of the roof body 4503 can be better simplified, the difficulty in stamping the roof body 4503 is reduced, and the difficulty in fitting the roof body 4503 to other vehicle body structures can be better reduced. Wherein, the top cap body 4503 and the top cap rear connecting plate 6104 are connected through spot welding, so that the connecting strength is enhanced, and the production process is simple.

Further, referring to fig. 41-43, the cap assembly 60 further includes: a front top crossbeam 6105 and a rear top crossbeam 6106, specifically, the front top crossbeam 6105 is located at the front end of the top cover body 4503, the left and right ends of the front top crossbeam 6105 are respectively connected with the front ends of the left and right side enclosure assemblies 40, the front and rear sides of the front top crossbeam 6105 are respectively used for the installation of front windshield glass and the installation of skylight reinforcing plates, the rear top crossbeam 6106 is located at the rear end of the top cover rear connecting plate 6104, the left and right ends of the rear top crossbeam 6106 are respectively connected with the rear ends of the left and right side enclosure assemblies 40, a rear door hinge mounting point is further formed thereon, wherein the front top crossbeam 6105 and/or the rear top crossbeam 6106 are made of aluminum profile extrusion molding, and the front top crossbeam 6105 is a closed section of three cavities. Therefore, the front top cross beam 6105 and/or the rear top cross beam 6106 have better rigidity, so that the space between the left and right side wall assemblies 40 is effectively supported, and the structural strength of the left and right side wall assemblies 40 is ensured. Meanwhile, the front top crossbeam 6105 is provided with matching edges in front and back, so that the installation of the front windshield glass and the skylight reinforcing plate are facilitated, the structure is compact, and the light weight degree is high.

In some examples, as shown in fig. 9 and 11, the top side beam body 4310 is formed with a fifth side wall 4304 engaged with the top cover assembly 60, so that the fifth side wall 4304 can better lift the top cover body 4503 upwards, which enhances the connection stability, and the fifth side wall 4304 can be connected with the connecting edge of the top cover body 4503 through FDS, which reduces the assembly difficulty of the vehicle.

Further, the first side wall 4301 is also used for fixing exterior trimming parts of the vehicle, the side wall between the first side wall 4301 and the second side wall 4302 is suitable for fixing a C-pillar, and the second side wall 4302 and the side wall between the second side wall 4302 and the fifth side wall 4304 are suitable for fixing interior trimming parts of the vehicle, so as to meet functional requirements of the vehicle body cage-shaped framework structure 100.

In a specific example, as shown in fig. 40, the top cover assembly 60 further includes a luggage rack mounting bracket 6102 and a top cover corner trim mounting bracket 6103, the luggage rack mounting bracket 6102 is disposed along the length direction of the top cover body 4503, and the top cover corner trim mounting bracket 6103 is disposed between the top cover body 4503 and the top cover rear connecting plate 6103, thereby facilitating the mounting of the luggage rack and the top cover corner trim and improving the functionality and the aesthetic property of the top cover assembly 60.

In another specific example, as shown in fig. 43, the back top cross beam 6106 includes a top cover rear support beam 6201, a back door hinge support beam 6202, a back door hinge mounting block 6203, a back door opening upper seam allowance 6204 and a back door gas spring mounting plate 6205, in particular, the top cover rear support beam 6201 is used for supporting the rear portion of the top cover body 4310 and is connected with the back door hinge support beam 6202 by welding to form a stable structure, the back door hinge mounting block 6203 is used for mounting the back door hinge and is connected with the back door hinge support beam 6202 by welding, the back door hinge mounting block 6203 is provided with a mounting hole for mounting the back door hinge, and simultaneously, the back door hinge support beam 6202 is provided with a corresponding mounting through hole, and the back door gas spring mounting plate 6205 is connected to both ends of the back door opening upper seam allowance 6204 in the back door opening for mounting the back door gas spring.

Other constructions and operations of the cage skeleton structure 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

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

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

Claims (10)

1. A cage-shaped framework structure of a vehicle body is characterized by comprising:

side wall assembly, the side wall assembly includes A post assembly, roof side rail assembly, B post assembly, C post assembly, threshold roof beam assembly, a rear wheel casing supporting beam assembly, A post assembly roof side rail assembly C post assembly threshold roof beam assembly with rear wheel casing supporting beam assembly splices into overall frame by the aluminium alloy that is equipped with the strengthening rib in inside cavity and the die cavity, B post assembly includes B post inner panel, B post planking, B post inner panel with B post planking comprises the steel sheet, and connects through spot welding, the top and the bottom of B post assembly respectively with roof side rail assembly with threshold roof beam assembly can dismantle the connection.

2. The cage frame structure for vehicle bodies according to claim 1, wherein the roof side rail assembly includes a roof side rail body and a B-pillar upper connecting plate, the roof side rail body includes a hollow tube body surrounded by a plurality of side walls and a first reinforcing rib provided in the hollow tube body, the first reinforcing rib divides an inner cavity of the hollow tube body into a plurality of independent cavities, a top of the B-pillar assembly is riveted with a first side wall of the roof side rail body, both ends of the B-pillar upper connecting plate are respectively bolted with the B-pillar inner plate and a second side wall of the roof side rail body, and wherein the first side wall and the second side wall are spaced apart.

3. The cage car body frame structure of claim 1, wherein said rocker beam assembly includes a rocker beam body, said rocker beam body including a hollow tubular body formed by a plurality of side walls and a second stiffener disposed within the hollow tubular body, said second stiffener dividing the inner cavity of the hollow tubular body into a plurality of independent cavities, said B-pillar inner panel riveted to a third side wall of said rocker beam body, said B-pillar outer panel riveted to a fourth side wall of said rocker beam body, wherein said third side wall is spaced apart from said fourth side wall.

4. The cage frame structure of claim 2 or 3, wherein the top and bottom of the B-pillar assembly are adhesively connected to the roof side rail assembly and the threshold rail assembly, respectively, by rivet-fit structure.

5. The cage-shaped framework structure of the vehicle body as claimed in claim 1, further comprising a lower assembly, wherein the lower assembly comprises a front cabin assembly, the front cabin assembly is spliced into an overall frame by aluminum profiles which are hollow inside and provided with reinforcing ribs in cavities, and the front cabin assembly comprises: the energy absorption box is arranged between the anti-collision beam and the front longitudinal beam, the front longitudinal beam sequentially comprises a front longitudinal beam front section, a front longitudinal beam middle section and a front longitudinal beam rear section from front to back, the front reinforcing beam penetrates through the front longitudinal beam rear section, and at least part of the front longitudinal beam rear section and at least part of the front reinforcing beam are bent downwards.

6. The cage-shaped framework structure of the vehicle body as claimed in claim 5, wherein the front cabin assembly further comprises a lower front baffle beam and a reinforcing front baffle beam, the lower front baffle beam and the reinforcing front baffle beam are both made of aluminum profiles which are hollow inside and provided with reinforcing ribs in cavities, an upper cavity and a lower cavity are formed in the lower front baffle beam, and the reinforcing front baffle beam is arranged in the upper cavity and/or the lower cavity.

7. The cage-shaped framework structure of claim 1, further comprising a lower assembly, wherein the lower assembly comprises a front floor assembly, the front floor assembly is spliced into an overall frame by aluminum profiles which are hollow inside and provided with reinforcing ribs in cavities, and the front floor assembly comprises:

the middle-channel longitudinal beam comprises a threshold inner beam, two middle-channel longitudinal beams, a front seat front cross beam, a front seat rear cross beam and a middle-channel longitudinal beam rear section, wherein the number of the threshold inner beam and the number of the middle-channel longitudinal beams are two, the two middle-channel longitudinal beams are arranged between the two threshold inner beams, the front seat front cross beam transversely penetrates through the middle-channel longitudinal beams, the two ends of the front seat front cross beam and the two ends of the front seat rear cross beam are respectively abutted against the threshold inner beams, the two front ends of the middle-channel longitudinal beams are respectively abutted against a front baffle lower cross beam, and the two rear ends of the middle-channel longitudinal beams are respectively abutted against the front seat rear cross beam.

8. The vehicle body cage framework structure of claim 1, further comprising a lower assembly, said lower assembly comprising a rear floor assembly, said rear floor assembly comprising a rear rail assembly, said rear rail assembly comprising: the rear longitudinal beam front section and the rear longitudinal beam rear section are connected through a rear longitudinal beam lower sealing plate, an obtuse angle is formed between the rear longitudinal beam front section and the rear longitudinal beam rear section, and an obtuse angle is formed between the rear longitudinal beam front section and a rear floor front cross beam.

9. The cage body frame structure of claim 1 further comprising a roof assembly, said roof assembly including a roof body and a roof rear web, said roof body and said roof rear web being connected by spot welding.

10. The cage body skeleton structure of claim 9, wherein the roof assembly further comprises:

the front top cross beam is positioned at the front end of the top cover body, the left end and the right end of the front top cross beam are respectively connected with the front ends of the left side wall assembly and the right side wall assembly, and the front side and the rear side of the front top cross beam are respectively used for installing front windshield glass and installing a skylight reinforcing plate;

the back top beam is positioned at the rear end of the top cover rear connecting plate, the left end and the right end of the back top beam are respectively connected with the rear ends of the left side wall assembly and the right side wall assembly, and a back door hinge mounting point is further formed on the back top beam, wherein the front top beam and/or the back top beam are/is an aluminum profile extrusion molding part, and the front top beam is a closed section of three cavities.

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