CN218172396U

CN218172396U - Automobile front door frame structure and automobile

Info

Publication number: CN218172396U
Application number: CN202221333006.7U
Authority: CN
Inventors: 徐希宇; 晏紫; 褚安华; 杨宏; 李永祥; 耿富荣
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-12-30
Anticipated expiration: 2032-05-30

Abstract

The utility model provides an automobile front door frame structure, which comprises a column A, a side wall upper boundary beam, a column B and a threshold beam, wherein the upper end of the column A is connected with one end of the side wall upper boundary beam, the lower end of the column A is connected with one end of the threshold beam, the upper end of the column B is connected with the other end of the side wall upper boundary beam, and the lower end of the column B is connected with the other end of the threshold beam; the B column comprises a B column reinforcing plate and a B column inner plate, the upper part of the B column reinforcing plate is provided with a plate body structure, the lower part of the B column reinforcing plate is provided with a groove body structure, the upper part of the B column inner plate is provided with a groove body structure, and the lower part of the B column inner plate is provided with a plate body structure; the plate body structure of the B column reinforcing plate is connected with the groove body structure of the B column inner plate, the groove body structure of the B column reinforcing plate is connected with the plate body structure of the B column inner plate, so that a first cavity is formed between the B column reinforcing plate and the B column inner plate, and the groove body structure of the B column inner plate is connected with the B column inner plate reinforcing plate. The utility model discloses a car qianmen frame construction and car has solved current car B post collision performance and has had the problem of treating the promotion.

Description

Automobile front door frame structure and automobile

Technical Field

The utility model belongs to the technical field of the car, more specifically say, relate to a car qianmen frame construction and car.

Background

The front door ring of the automobile, namely the automobile body door frame structure matched with the front door of the automobile, is one of the most important safety framework structures of an automobile body, and is simultaneously connected with an engine compartment, a front floor, a rear floor and other upper automobile body parts of the automobile, so that a complete automobile body framework structure is formed. In the front door ring of the automobile in the prior art, the rigidity and the collision performance of the B column need to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the rigidity intensity and the crashworthiness to current B post remain the problem that promotes, provide a car qianmen frame construction and car.

The utility model provides an above-mentioned technical problem adopted technical scheme as follows:

an automobile front door frame structure comprises an A column, a side wall upper edge beam, a B column and a threshold beam, wherein the upper end of the A column is connected with one end of the side wall upper edge beam, the lower end of the A column is connected with one end of the threshold beam, the upper end of the B column is connected with the other end of the side wall upper edge beam, and the lower end of the B column is connected with the other end of the threshold beam;

the B column comprises a B column reinforcing plate and a B column inner plate, the upper part of the B column reinforcing plate is provided with a plate body structure, the lower part of the B column reinforcing plate is provided with a groove body structure, the upper part of the B column inner plate is provided with a groove body structure, and the lower part of the B column inner plate is provided with a plate body structure; the plate body structure of the B column reinforcing plate is connected with the groove body structure of the B column inner plate, the groove body structure of the B column reinforcing plate is connected with the plate body structure of the B column inner plate, so that a first cavity is formed between the B column reinforcing plate and the B column inner plate, and the groove body structure of the B column inner plate is connected with the B column inner plate reinforcing plate.

Further, the B-pillar inner plate reinforcing plate is connected between the plate body structure of the B-pillar reinforcing plate and the groove body structure of the B-pillar inner plate, a second cavity is formed between the B-pillar inner plate reinforcing plate and the B-pillar reinforcing plate, and a third cavity is formed between the B-pillar inner plate reinforcing plate and the groove body structure of the B-pillar inner plate.

Furthermore, a slot structure of the B-column reinforcing plate is connected with a patch plate, the upper end of the patch plate is overlapped with the lower end of the B-column inner plate reinforcing plate, and the overlapped part of the patch plate and the B-column inner plate reinforcing plate is located at the boundary of the slot structure of the B-column reinforcing plate and the plate structure of the B-column reinforcing plate.

Further, the A column comprises an A column reinforcing plate, the side wall roof side rail comprises a side wall roof side rail reinforcing plate, and the A column reinforcing plate, the side wall roof side rail reinforcing plate and the B column reinforcing plate are integrally formed.

Further, the pillar A further comprises a pillar A inner plate connected with the pillar A reinforcing plate, the side wall roof side rail further comprises a side wall roof side rail inner plate connected with the side wall roof side rail reinforcing plate, and the pillar A inner plate, the side wall roof side rail inner plate and the pillar B inner plate are integrally formed.

Further, the upper portion that the boundary beam was enclosed to the side is equipped with extends the limit, the side is enclosed and is connected with top cap crossbeam subassembly between the boundary beam, top cap crossbeam subassembly includes top cap crossbeam connecting plate and top cap crossbeam body, top cap crossbeam connecting plate with the side is enclosed the sub-unit connection of boundary beam, the top of top cap crossbeam body with extend the limit and connect, the bottom of top cap crossbeam body with top cap crossbeam connecting plate is connected.

Further, the top cover beam body comprises a beam bottom wall and beam side walls, a closed side wall is connected between the beam side walls, and a top cover beam reinforcing plate is connected to the top of the top cover beam body.

Furthermore, the automobile front door frame structure further comprises an upper longitudinal beam channel, a connecting plate is connected between the upper longitudinal beam channel and the A-pillar reinforcing plate, the width of the rear end of the connecting plate is larger than that of the front end of the connecting plate, and the rear end of the connecting plate extends downwards to the front door limiter of the automobile.

Further, the lower end of the B-pillar reinforcement plate comprises a first connection wall and a second connection wall, and the second connection wall is connected to the lower part of the first connection wall; the doorsill beam comprises an upper doorsill cavity and a lower doorsill cavity, the lower doorsill cavity is connected to the lower portion of the upper doorsill cavity, the first connecting wall is connected with the outer side wall of the upper doorsill cavity, and the second connecting wall is connected with the outer side wall of the lower doorsill cavity.

The utility model also provides an automobile, including foretell car qianmen frame construction.

The utility model discloses the beneficial effect who brings lies in, the plate body structure through the B post reinforcing plate is connected with the groove body structural connection of B post inner panel, and the groove body structural connection of B post reinforcing plate and the plate body structural connection of B post inner panel can ensure to form first cavity between the B post reinforcing plate of door and the B post inner panel, and the groove body structural connection B post inner panel reinforcing plate of B post inner panel to improve the rigidity intensity and the crashworthiness of B post.

Drawings

Fig. 1 is a schematic structural diagram of a front door frame structure of an automobile according to an embodiment of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view of the automotive front door frame structure of FIG. 1 taken along the direction A-A;

FIG. 3 is a cross-sectional view of the automotive front door frame structure of FIG. 1 taken along the direction B-B;

fig. 4 is a schematic structural view of a roof rail assembly according to an embodiment of the present invention;

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

fig. 6 is a schematic structural view of a threshold beam according to an embodiment of the present invention.

The reference numbers in the drawings of the specification are as follows:

1. a column A; 11. a column reinforcing plate; 2. the side wall is provided with an edge beam; 21. the side wall is provided with a side beam reinforcing plate; 22. an extension edge; 3. a column B; 31. a B-pillar reinforcement plate; 311. the plate body structure of the B-column reinforcing plate; 312. the groove body structure of the B column reinforcing plate; 3121. the bottom wall of the B-pillar reinforcing plate; 3122. b column reinforcing plate side wall; 313. a patch panel; 314. a first connecting wall; 315. a second connecting wall; 32.b column inner plates; 321. the groove body structure of the B column inner plate; 3211. the bottom wall of the B column inner plate; 3212. b column inner plate side wall; 322. the plate body structure of the B column inner plate; 323. b column inner plate reinforcing plate; 33. a first cavity; 331. a second cavity; 332. a third cavity; 4. a threshold beam; 41. a threshold upper cavity; 411. the outer side wall of the cavity on the threshold; 412. a transverse interconnecting plate; 413. a longitudinal interconnecting plate; 42. a lower cavity of the threshold; 421. the outer side wall of the cavity under the threshold; 5. a top cap beam assembly; 51. a top cover beam connecting plate; 52. a top cover beam body; 521. a cross beam bottom wall; 522. a beam side wall; 5221. a first side wall; 5222. a second side wall; 5223. third flanging; 5224. a fourth flanging; 523. a closed side wall; 5231. a first closed side wall; 5232. a first flanging; 6. an upper stringer channel; 7. a connecting plate; 8. a front door stop.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and "a plurality" means two or more, and the first feature may be "on" or "under" the second feature, and may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature therebetween, and the first feature being "on", "above" and "above" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is higher in level than the second feature.

The following describes an automobile front door frame structure according to an embodiment of the present invention with reference to the drawings.

Referring to fig. 1 to 3, according to the embodiment of the present invention, an automobile front door frame structure includes an a-pillar 1, a side wall roof rail 2, a B-pillar 3, and a sill 4,A, wherein the upper end of the a-pillar 1 is connected to one end of the side wall roof rail 2, the lower end of the a-pillar 1 is connected to one end of the sill 4, the upper end of the B-pillar 3 is connected to the other end of the side wall roof rail 2, and the lower end of the B-pillar 3 is connected to the other end of the sill 4; the upper part of the B-column reinforcing plate 31 is provided with a plate body structure, the lower part of the B-column reinforcing plate 31 is provided with a groove body structure, the upper part of the B-column inner plate 32 is provided with a groove body structure, and the lower part of the B-column inner plate 32 is provided with a plate body structure; the plate body structure 311 of the B-pillar reinforcing plate is connected with the groove body structure 321 of the B-pillar inner plate, the groove body structure 312 of the B-pillar reinforcing plate is connected with the plate body structure 322 of the B-pillar inner plate, so that a first cavity 33 is formed between the B-pillar reinforcing plate 31 and the B-pillar inner plate 32, and the groove body structure 321 of the B-pillar inner plate is connected with a B-pillar inner plate reinforcing plate 323. The first cavity 33 can be formed between the B-column reinforcing plate 31 of the frameless vehicle door and the B-column inner plate 32 through the connection of the plate body structure 311 of the B-column reinforcing plate and the groove body structure 321 of the B-column inner plate, the B-column inner plate reinforcing plate 323 is connected to the groove body structure 321 of the B-column inner plate, and therefore the rigidity and the collision performance of the B-column 3 are improved.

In the B-pillar 3 of the frameless door, the door glass is directly pressed against the outer surface of the upper portion of the B-pillar reinforcement 31, and the upper portion of the B-pillar reinforcement 31 needs to have a flat structure to match the assembly of the door glass, so the upper portion of the B-pillar reinforcement 31 is designed as a plate structure. In order to ensure the existence of the first cavity 33 formed between the B-pillar reinforcement plate 31 and the B-pillar inner plate 32, the upper part of the B-pillar inner plate 32 needs to be designed into a groove structure accordingly, and the plate body structure 311 of the B-pillar reinforcement plate is connected with the groove structure 321 of the B-pillar inner plate to form the upper part of the first cavity 33. The groove structure 321 of the B-pillar inner plate comprises a B-pillar inner plate bottom wall 3211 and a B-pillar inner plate side wall 3212, the B-pillar inner plate side wall 3212 is connected with the plate structure 311 of the B-pillar reinforcement plate, and the plate structure 311 of the B-pillar reinforcement plate and the B-pillar inner plate bottom wall 3211 are separated to form a first cavity 33.

For the lower part of the B-pillar 3, a door structure having a certain thickness is pressed against the outer surface of the lower part of the B-pillar reinforcement plate 31, and the lower part of the B-pillar reinforcement plate 31 needs to have a certain width on the sidewall to match the assembly of the door structure, so the lower part of the B-pillar reinforcement plate 313 is designed as a groove structure. In order to ensure the existence of the first cavity 33 formed between the B-pillar reinforcement 31 plate and the B-pillar inner plate 323, the lower part of the B-pillar inner plate 32 needs to be designed into a plate structure accordingly, and the groove structure 312 of the B-pillar reinforcement plate is connected with the plate structure 322 of the B-pillar inner plate to form the lower part of the first cavity 33. The groove structure 312 of the B-pillar reinforcing plate comprises a B-pillar reinforcing plate bottom wall 3121 and a B-pillar reinforcing plate side wall 3122, the B-pillar reinforcing plate side wall 3122 is connected with the plate structure 322 of the B-pillar inner plate, and the first cavity 33 is formed between the plate structure 322 of the B-pillar inner plate and the B-pillar reinforcing plate bottom wall 3121 at intervals.

A B-column inner plate reinforcing plate 323 is connected between a plate body structure 311 of the B-column reinforcing plate and a groove body structure 321 of the B-column inner plate, a second cavity 331 is formed between the B-column inner plate reinforcing plate 323 and the B-column reinforcing plate, and a third cavity 332 is formed between the B-column inner plate reinforcing plate 323 and the groove body structure 321 of the B-column inner plate. The first connecting edge of the B-pillar inner panel reinforcement 323 is connected between the first connecting edge of the B-pillar reinforcement 31 and the first connecting edge of the B-pillar inner panel 32, and the second connecting edge of the B-pillar inner panel reinforcement 323 is connected between the second connecting edge of the B-pillar reinforcement 31 and the second connecting edge of the B-pillar inner panel 32. The B-pillar inner panel reinforcement 323 has a double-inverted-V-shaped structure, and the B-pillar inner panel reinforcement 323 has two protrusions protruding toward the B-pillar inner panel 32. The B-column inner plate 32 can be reinforced by connecting the B-column inner plate reinforcing plate 323 to the groove body structure 321 of the B-column inner plate, and a multi-layer cavity can be formed between the B-column reinforcing plate 31 and the B-column inner plate 32, so that the rigidity and the strength of the upper part of the B-column 3 are improved; meanwhile, the B-pillar inner plate reinforcing plate 323 is arranged to be of a double-inverted-V-shaped structure, so that the supporting effect of the B-pillar inner plate reinforcing plate 323 on the inside of the first cavity 33 can be improved, and the rigidity strength of the upper part of the B-pillar 3 is further improved.

The groove body structure 312 of the B-column reinforcing plate is connected with a patch plate 313, the upper end of the patch plate 313 is overlapped with the lower end of the B-column inner plate reinforcing plate 323, and the overlapped part of the patch plate 313 and the B-column inner plate reinforcing plate 323 is positioned at the boundary of the groove body structure 312 of the B-column reinforcing plate and the plate body structure 311 of the B-column reinforcing plate. The patch panel 313 is arranged between the groove structure 312 of the B-pillar reinforcing plate and the B-pillar inner plate 32, and is attached to the groove structure 312 of the B-pillar reinforcing plate. The lower end of the patch panel 313 is connected with the lower end of the groove structure 312 of the B-pillar reinforcing plate, and the upper end of the patch panel 313 extends upwards until the boundary between the groove structure 312 of the B-pillar reinforcing plate and the plate structure 311 of the B-pillar reinforcing plate. The upper end of B post inner panel reinforcing plate 323 is connected with the upper end of cell body structure 321 of B post inner panel, and the lower extreme downwardly extending of B post inner panel is up to the border department of cell body structure 321 and the plate body structure 322 of B post inner panel. The boundary between the groove structure 312 of the B-pillar reinforcement plate and the plate structure 311 of the B-pillar reinforcement plate corresponds to the boundary between the groove structure 321 of the B-pillar inner plate and the plate structure 322 of the B-pillar inner plate, and the upper end of the patch panel 313 and the lower end of the B-pillar inner plate reinforcement plate 323 are overlapped at the boundary between the groove structure 312 of the B-pillar reinforcement plate and the plate structure 311 of the B-pillar reinforcement plate, that is, the boundary between the groove structure 321 of the B-pillar inner plate and the plate structure 322 of the B-pillar inner plate. The rigidity of the lower portion of the B-pillar can be further improved by connecting the patch panel 313 to the groove structure 312 of the B-pillar reinforcement panel.

The A column 1 comprises an A column reinforcing plate 11, the side wall roof side rail 2 comprises a side wall roof side rail reinforcing plate 21, the A column reinforcing plate 11, the side wall roof side rail reinforcing plate 21 and a B column reinforcing plate 31 are integrally formed. The A column 1, the side wall upper edge beam 2, the B column 3 and the threshold beam 4 are connected to form a front door ring structure of the automobile. The A-pillar reinforcing plate 11, the side-wall roof side rail reinforcing plate 21 and the B-pillar reinforcing plate 31 are integrally formed hot-formed steel plates, and the threshold beam 4 is an extruded aluminum alloy threshold. Because the A-pillar reinforcing plate 11, the side-wall roof side rail reinforcing plate 21 and the B-pillar reinforcing plate 31 are integrally formed, the A-pillar reinforcing plate 11, the side-wall roof side rail reinforcing plate 21 and the B-pillar reinforcing plate 31 form an F-shaped reinforcing plate structure, and the doorsill beam 4 is connected to an opening of the F-shaped reinforcing plate structure.

By using the F-shaped reinforcing plate structure to be connected with the sill beam 4, the structure consisting of the integrally formed A-pillar reinforcing plate 11, the side-wall upper side-beam reinforcing plate 21 and the B-pillar reinforcing plate 31 can avoid the damage of a force transmission path caused by the condition of uneven rigidity matching on the force transmission path due to split spot welding, and can reduce overlap edges to reduce the risk of cracking on the overlap edges, thereby optimizing the collision performance target; meanwhile, the F-shaped reinforcing plate structure is formed by an integrated F-shaped hot forming steel plate, the doorsill beam 4 is an extruded aluminum alloy doorsill, the collision performance can be ensured, and meanwhile, the lightweight is realized, and the whole weight of parts caused by the overlap edges of the parts can be reduced due to the reduction of the overlap edges, so that the lightweight of the front door frame structure of the automobile is realized; in addition, the integrated design can be realized by integrally forming the A column reinforcing plate 11, the side wall roof side rail reinforcing plate 21 and the B column reinforcing plate 31, the whole structure formed by the A column reinforcing plate 11, the side wall roof side rail reinforcing plate 21 and the B column reinforcing plate 31 is opened, the mold opening cost of single parts is reduced, and the welding process is reduced.

The A pillar 1 further comprises an A pillar inner plate connected with the A pillar reinforcing plate 11, and the side wall roof side rail 2 further comprises a side wall roof side rail inner plate connected with the side wall roof side rail reinforcing plate 21. The pillar A inner panel, the side wall roof side rail inner panel and the pillar B inner panel 32 can be integrally formed frames which are consistent with the integrally formed structures of the pillar A reinforcing panel 11, the side wall roof side rail reinforcing panel 21 and the pillar B reinforcing panel 31 according to the requirements of collision performance and cost, or the pillar A inner panel, the side wall roof side rail inner panel and the pillar B inner panel 32 are connected in a split mode.

According to the utility model discloses an embodiment, A post inner panel, side wall roof rail inner panel, B post inner panel 32 integrated into one piece are "F" type inner panel structure. The A column reinforcing plate 11, the side wall upper edge beam reinforcing plate 21 and the B column reinforcing plate 31 are integrally formed into an F-shaped reinforcing plate structure, and the A column inner plate, the side wall upper edge beam inner plate and the B column inner plate 32 are integrally formed into an F-shaped inner plate structure and then connected with the integrally formed F-shaped reinforcing plate structure. Through using integrated into one piece's "F" type inner panel structure, can realize the same technological effect with "F" type reinforcing plate structure, with "F" type reinforcing plate structural connection back, can further avoid the power route of biography that the uneven circumstances of rigidity matching arouses on the power route that leads to the fact because of piecemeal spot welding destroys, and reduce the overlap edge in order to reduce the risk that the fracture appears on the overlap edge, can further realize the lightweight of car qianmen frame construction again, thereby can further realize integrating the design and reduce the cost of single spare part die sinking and reduce the welding process.

In some embodiments, the a-pillar inner panel and the side-wall roof side rail inner panel are integrally formed and then connected to the B-pillar inner panel 32, the integrally formed structure of the a-pillar inner panel and the side-wall roof side rail inner panel and the B-pillar inner panel 32 are two separate pieces, and the boundary point of the two separate pieces is located at the position, close to the B-pillar inner panel 32, of the side-wall roof side rail inner panel. The integrally formed structure of the column A inner plate and the side wall roof side rail inner plate is connected with the column B inner plate 32 and then connected with the F-shaped reinforcing plate structure. After the forming and connecting modes of the A column inner plate, the side wall upper side beam inner plate and the B column inner plate 32 are combined with the F-shaped reinforcing plate structure, compared with the prior art, the risk of cracking on the overlapped edges can be reduced, the light weight degree is improved, and integration is realized.

In this embodiment, as shown in fig. 4, the extending edges 22 are disposed on the side wall roof side rails 2, the roof cross beam assembly 5 is connected between the side wall roof side rails 2, the roof cross beam assembly 5 includes a roof cross beam connecting plate 51 and a roof cross beam body 52, the roof cross beam connecting plate 51 is connected to the lower portion of the side wall roof side rails 2, the top of the roof cross beam body 52 is connected to the extending edges 22, and the bottom of the roof cross beam body 52 is connected to the roof cross beam connecting plate 51.

The extending edge 22 extends from the side wall roof side rail 2 to the roof cross rail body 52, and the plane of the extending edge 22 is flush with the top surface of the side wall roof side rail 2. One end of the top cover beam connecting plate 51 is connected with the bottom of the side wall roof side rail 2, and the other end of the top cover beam connecting plate 51 is connected with the top cover beam body 52. The top cover beam connecting plate 51 is a horn-shaped connecting piece, and the joint width of one end of the top cover beam connecting plate 51 connected with the side wall upper edge beam 2 is larger than that of one end of the top cover beam connecting plate 51 connected with the top cover beam body 52. The roof rail connecting plate 51 has a downwardly recessed groove for accommodating the roof rail body 52. The end of the top cross member body 52 is provided with a first flange 5232, and the first flange 5232 is connected to the extension edge 22. The bottom of the roof rail body 52 is attached in a recess in the roof rail attachment plate 51. By connecting the roof cross member body 52 to the extension side 22 and the roof cross member connecting plate 51, the rigidity of the connecting structure of the side roof side rail 2 and the roof cross member body 52 can be improved.

The roof cross beam body 52 comprises a cross beam bottom wall 521 and cross beam side walls 522, closed side walls 523 are connected between the cross beam side walls 522, and a roof cross beam reinforcing plate is connected to the top of the roof cross beam body 52. The cross beam side wall 522 includes a first side wall 5221 and a second side wall 5222, the closed side wall 523 includes a first closed side wall 5231 and a second closed side wall, the first closed side wall 5231 is connected between one end of the first side wall 5221 and one end of the second side wall 5222, and the second closed side wall is connected between the other end of the first side wall 5221 and the other end of the second side wall 5222. The first flange 5232 is formed by extending the first closed sidewall 5231, the second closed sidewall extends to form a second flange, the first sidewall 5221 extends to form a third flange 5223, and the second sidewall 5222 extends to form a fourth flange 5224. First flange 5232 is attached to extension 22 and beam bottom wall 521 is attached to the bottom wall of the recess. The first sidewall 5221 is connected to one sidewall of the groove, and the second sidewall 5222 is connected to the other sidewall of the groove.

The top head beam reinforcing plate is connected to the top of the top head beam body 52, and the top head beam reinforcing plate is connected to the first flange 5232, the second flange, the third flange 5223 and the fourth flange 5224, so that a closed cavity is formed between the top head beam reinforcing plate and the top head beam body 52. The closed side walls 523 are arranged at the two ends of the top cover beam body 52, and the top cover beam reinforcing plate is arranged at the top of the top cover beam body 52, so that a closed cavity is formed between the top cover beam reinforcing plate and the top cover beam body 52, the rigidity of the top cover beam body 52 can be improved, and the side impact performance and the top pressure performance are improved.

As shown in fig. 5, a connecting plate 7 is connected between the upper longitudinal beam channel 6 and the a-pillar reinforcing plate 11, the width of the rear end of the connecting plate 7 is larger than that of the front end of the connecting plate 7, and the rear end of the connecting plate 7 extends downwards to a front door stopper of an automobile. Through setting up connecting plate 7 between last longeron passageway 6 and "F" type reinforcing plate structure to increase the width of connecting plate 7 rear end so that the front door stopper of connecting plate 7 rear end downwardly extending to the car, can make preceding longeron passageway 6 more stable with the integrative door ring reinforcing plate junction of "F" type, reduce the deflection of A post 1 region in the collision process.

As shown in fig. 6, the rocker beam 4 includes a rocker upper cavity 41 and a rocker lower cavity 42, and the rocker lower cavity 42 is connected to a lower portion of the rocker upper cavity 41. The outer side wall 411 of the cavity on the threshold is arranged along the vertical direction, the lower end of the outer side wall 421 of the cavity under the threshold inclines towards the interior of the vehicle, and the lower end of the outer side wall 421 of the cavity under the threshold is closer to the interior of the vehicle than the upper end of the outer side wall 421 of the cavity under the threshold, so that the outer side wall 411 of the cavity on the threshold and the outer side wall 421 of the cavity under the threshold are not on the same plane. The upper cavity 41 further includes an inner sidewall of the upper cavity 41 opposite to the outer sidewall 411 of the upper cavity, and a transverse inner connecting plate 412 and two longitudinal inner connecting plates 413 are connected between the outer sidewall 411 of the upper cavity and the inner sidewall of the upper cavity 41, so as to form six cavities in the upper cavity 41. The lower threshold cavity 42 is a unitary cavity.

The lower end of the B-pillar reinforcement plate 31 includes a first connection wall 314 and a second connection wall 315, and the second connection wall 315 is connected to the lower end of the first connection wall 314. The first connecting wall 314 is connected with the outer side wall 411 of the cavity on the threshold, and the corresponding first connecting wall 314 is arranged along the vertical direction; the second connecting wall 315 is connected to the outer sidewall 421 of the lower cavity of the threshold, and the lower end of the corresponding second connecting wall 315 is inclined toward the vehicle interior, so that the first connecting wall 314 and the second connecting wall 315 are not on the same plane. The first connecting wall 314 at the lower end of the B-pillar reinforcement panel 31 is connected with the outer side wall 411 of the upper cavity of the threshold, and the second connecting wall 315 is connected with the outer side wall 421 of the lower cavity of the threshold, so that the coverage area of the B-pillar reinforcement panel 31 and the threshold beam 4 can be increased, the B-pillar reinforcement panel 31 can more tightly surround the threshold beam 4, and the lap joint rigidity of the B-pillar 3 and the threshold beam 4 is improved.

The automobile front door frame structure provided by the embodiment of the utility model is connected with the groove body structure 321 of the B-pillar inner plate through the plate body structure 311 of the B-pillar reinforcing plate, the groove body structure 312 of the B-pillar reinforcing plate is connected with the plate body structure 322 of the B-pillar inner plate, a first cavity 33 can be formed between the B-pillar reinforcing plate 31 of the frameless door and the B-pillar inner plate 32, and the B-pillar inner plate reinforcing plate 323 is connected on the groove body structure 321 of the B-pillar inner plate, so that the rigidity and the collision performance of the B-pillar 3 are improved; by using the F-shaped reinforcing plate structure to be connected with the sill beam 4, the structure consisting of the integrally formed A-pillar reinforcing plate 11, the side-wall upper side beam reinforcing plate 21 and the B-pillar reinforcing plate 31 can avoid the damage of a force transmission path caused by the condition of uneven rigidity matching on the force transmission path caused by spot welding of separate pieces, and can reduce the overlap edge to reduce the risk of cracking on the overlap edge, thereby optimizing the collision performance target; meanwhile, the lap joint strength between the side wall roof side rail 2 and the roof cross rail assembly 5 can be improved by connecting the roof cross rail assembly 5 between the side wall roof side rail 2, the deformation of the A-pillar 1 area in the collision process can be reduced by connecting the connecting plate 7 between the upper longitudinal beam channel 6 and the A-pillar reinforcing plate 11, and the lap joint strength between the B-pillar 3 and the sill beam 4 can be improved by connecting the first connecting wall 314 and the second connecting wall 315 at the lower end of the B-pillar reinforcing plate 31 with the sill beam 4.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the terms "embodiment," "specific embodiment," "example," 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 present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The front door frame structure of the automobile is characterized by comprising an A column, a side wall upper edge beam, a B column and a threshold beam, wherein the upper end of the A column is connected with one end of the side wall upper edge beam, the lower end of the A column is connected with one end of the threshold beam, the upper end of the B column is connected with the other end of the side wall upper edge beam, and the lower end of the B column is connected with the other end of the threshold beam;

2. The automobile front door frame structure of claim 1, wherein the B-pillar inner panel reinforcement plate is connected between a plate structure of the B-pillar reinforcement plate and a groove structure of the B-pillar inner panel, a second cavity is formed between the B-pillar inner panel reinforcement plate and the plate structure of the B-pillar reinforcement plate, and a third cavity is formed between the B-pillar inner panel reinforcement plate and the groove structure of the B-pillar inner panel.

3. The automobile front door frame structure of claim 2, wherein a patch panel is connected to the groove structure of the B-pillar reinforcing plate, the upper end of the patch panel is overlapped with the lower end of the B-pillar inner plate reinforcing plate, and the overlapped part of the patch panel and the B-pillar inner plate reinforcing plate is located at the boundary between the groove structure of the B-pillar reinforcing plate and the plate structure of the B-pillar reinforcing plate.

4. The automotive front door frame structure of claim 1, wherein the A-pillar includes an A-pillar reinforcement panel and the side sill includes a side sill reinforcement panel, and wherein the A-pillar reinforcement panel, the side sill reinforcement panel, and the B-pillar reinforcement panel are integrally formed.

5. The automotive front door frame structure of claim 4, wherein the A-pillar further comprises an A-pillar inner panel connected to the A-pillar reinforcement panel, the side roof rail further comprises a side roof rail inner panel connected to the side roof rail reinforcement panel, and the A-pillar inner panel, the side roof rail inner panel, and the B-pillar inner panel are integrally formed.

6. The front door frame structure of the automobile according to claim 1, wherein an extending edge is provided at an upper portion of the side wall upper edge beams, a top cover beam assembly is connected between the side wall upper edge beams, the top cover beam assembly includes a top cover beam connecting plate and a top cover beam body, the top cover beam connecting plate is connected with a lower portion of the side wall upper edge beams, a top portion of the top cover beam body is connected with the extending edge, and a bottom portion of the top cover beam body is connected with the top cover beam connecting plate.

7. The automotive front door frame structure of claim 6, wherein the top cover beam body includes a beam bottom wall and beam side walls, the beam side walls being connected with a closed side wall therebetween, and a top cover beam reinforcement plate being connected to a top of the top cover beam body.

8. The automotive front door frame structure of claim 4, further comprising an upper rail channel, a web connected between the upper rail channel and the A-pillar stiffener, the web having a width at a rear end that is greater than a width at a front end of the web, the web rear end extending down to a front door check of the automobile.

9. The front door frame structure of the automobile according to claim 1, wherein the lower end of the B-pillar reinforcement panel includes a first connection wall and a second connection wall connected to a lower portion of the first connection wall; the doorsill beam comprises an upper doorsill cavity and a lower doorsill cavity, the lower doorsill cavity is connected to the lower portion of the upper doorsill cavity, the first connecting wall is connected with the outer side wall of the upper doorsill cavity, and the second connecting wall is connected with the outer side wall of the lower doorsill cavity.

10. An automobile, characterized by comprising the automobile front door frame structure according to any one of claims 1 to 9.