CN-224211143-U - Lower A column force transmission structure and vehicle

Abstract

The utility model discloses a lower A column force transmission structure and a vehicle with the same, which comprise a lower A column, a threshold beam, a first reinforcing piece and a second reinforcing piece, wherein the threshold beam is fixedly connected to the lower end of the lower A column, the first reinforcing piece is fixedly connected to the threshold beam, the first reinforcing piece is abutted against and fixed on one side of the lower A column, the second reinforcing piece comprises a front end connecting part and a rear end connecting part which are distributed along the front-rear direction, the front end connecting part is suitable for being connected to the rear end of a front cabin longitudinal beam, and the rear end connecting part corresponds to the first reinforcing piece and is abutted against the other side of the lower A column and is fixedly connected with the lower A column. According to the utility model, the second reinforcing piece, the lower A column, the first reinforcing piece and the threshold beam can form a continuous force transmission path, so that collision force on the longitudinal beam of the front engine room can be guided and transmitted to the threshold beam, the collision impact on the lower A column is lightened, the deformation of the lower A column under the front collision working condition is effectively reduced, and the safety of passengers is facilitated.

Inventors

• YAN HAIQI
• LING YANGCHAO
• MA JIAN
• HOU JUYING

Assignees

• 赛力斯汽车有限公司

Dates

Publication Date

20260508

Application Date

20250529

Claims (10)

1. 1. A lower a-pillar force transfer structure comprising: B, column A is arranged; the threshold beam is fixedly connected to the lower end of the lower A column; a first reinforcement fixedly connected to the threshold beam and abutted against and fixed to one side of the lower A-pillar, and The second reinforcement comprises front end connecting parts and rear end connecting parts which are distributed along the front-rear direction, the front end connecting parts are suitable for being connected to the rear ends of the front cabin longitudinal beams, and the rear end connecting parts correspond to the first reinforcement, are attached to the other side of the lower A column and are fixedly connected with the lower A column.
2. 2. The lower A column force transmission structure according to claim 1, wherein the lower A column comprises a main board and a side board connected to the front side of the main board, wherein the surface normal direction of the side board is parallel to the front-rear direction and is provided with a first connecting surface and a second connecting surface which are opposite along the front-rear direction, the first reinforcing piece is abutted against the first connecting surface towards the end surface of the side board, the rear end connecting portion is extended along the left-right direction to form a first connecting portion, and the first connecting portion is abutted against the second connecting surface corresponding to the first reinforcing piece.
3. 3. The lower a-pillar force transmission structure according to claim 2, wherein the panel surface normal direction of the main board is parallel to the left-right direction and has a third connection surface and a fourth connection surface opposite to each other along the left-right direction, the first reinforcing member is abutted against the third connection surface toward the end surface of the main board, the rear end connection portion is formed with a second connection portion extending in the front-rear direction, and the second connection portion is abutted against the fourth connection surface corresponding to the first reinforcing member.
4. 4. The lower a-pillar force transfer structure of claim 3, wherein a first support portion and a second support portion are provided between the front end connection portion and the rear end connection portion, wherein the first support portion is connected and supported between the front end connection portion and the first connection portion to form a first force transfer path, and the second support portion is connected and supported between the front end connection portion and the second connection portion to form a second force transfer path.
5. 5. The lower a-pillar force transmitting structure according to claim 4, wherein the second connecting portion is formed with a third connecting portion extending downward in the up-down direction and rearward in the front-rear direction, the third connecting portion being fixedly connected to the rocker.
6. 6. The lower a-pillar force transmission structure according to any one of claims 1 to 5, wherein the first reinforcement member comprises a base, a cavity penetrating through the base in a left-right direction is formed in the base, a plurality of reinforcement ribs are arranged in the cavity in a crossing manner, and the cavity is divided into a plurality of cavity structures by the plurality of reinforcement ribs.
7. 7. The lower a-pillar force transfer structure of claim 6, wherein said first reinforcement further comprises a cover plate having one side panel surface abutting said lower a-pillar and the other side panel surface covering at least one of said chamber structures and being welded to said base.
8. 8. The lower a-pillar force transfer structure according to claim 1, wherein the threshold beam is provided with a mounting groove with an upward opening notch, and the first reinforcing member is disposed in the mounting groove and is welded to a groove wall of the mounting groove.
9. 9. The lower a-pillar force transfer structure of claim 1, further comprising a connection assembly extending through and integrally connecting the first reinforcement member, the lower a-pillar, and the second reinforcement member.
10. 10. A vehicle comprising a lower a-pillar force transfer structure according to any one of claims 1-9.

Description

Lower A column force transmission structure and vehicle Technical Field The utility model relates to the technical field of vehicle structures, in particular to a lower A column force transmission structure and a vehicle. Background Under normal conditions, when a vehicle encounters a frontal collision, collision energy is transmitted to the whole vehicle body structure backwards through the anti-collision beam and the front cabin longitudinal beam, so that the whole vehicle body participates in collision energy absorption, and the passenger cabin is prevented from being damaged excessively. However, under the front offset collision condition (for example, the front 25% offset collision condition), collision energy is only loaded on a part of the area of the vehicle body, and at this time, the impacted area is equivalent to carrying energy which is several times of that of the normal collision condition, so that the vehicle body structure is extremely easy to damage. The lower A column area positioned at the left and right edges of the vehicle body is a main stress area under the working condition of front offset collision. The traditional front engine room longitudinal beam has a single force transmission path, the force cannot be effectively dispersed, and collision impact force can be intensively transmitted to the lower A column area through the front engine room longitudinal beam, so that impact is caused on the lower A column. At this time, if the vehicle is subjected to front offset collision when the vehicle speed is high, the lower A column is easily deformed or even broken by huge impact force, so that the front wall and the lower cross beam of the front wall move backwards and invade the passenger cabin, and the life safety of a driver and a front passenger is affected. Disclosure of utility model In view of the above problems, embodiments of the present utility model provide a lower a-pillar force transfer structure and a vehicle, which are capable of transmitting a collision impact force on a front cabin longitudinal beam to a rocker beam, and reducing the collision impact on the lower a-pillar. According to one aspect of the embodiment of the utility model, a lower A column force transmission structure is provided, which comprises a lower A column, a threshold beam fixedly connected to the lower end of the lower A column, a first reinforcement fixedly connected to the threshold beam, the first reinforcement being abutted against and fixed to one side of the lower A column, and a second reinforcement comprising a front end connecting part and a rear end connecting part distributed along the front-rear direction, wherein the front end connecting part is suitable for being connected to the rear end of a front cabin longitudinal beam, and the rear end connecting part is abutted against the other side of the lower A column corresponding to the first reinforcement and is fixedly connected with the lower A column. In an exemplary embodiment of the utility model, the lower A column comprises a main board and a side board connected to the front side of the main board, wherein the surface normal direction of the side board is parallel to the front-rear direction and is provided with a first connecting surface and a second connecting surface which are opposite in the front-rear direction, the end surface of the first reinforcing piece facing the side board is abutted against the first connecting surface, the rear end connecting part is extended in the left-right direction to form a first connecting part, and the first connecting part corresponds to the first reinforcing piece and is abutted against the second connecting surface. In an exemplary embodiment of the utility model, the surface normal direction of the main board is parallel to the left-right direction and is provided with a third connecting surface and a fourth connecting surface which are opposite to each other along the left-right direction, the end surface of the first reinforcing piece facing the main board is abutted against the third connecting surface, the rear end connecting part is extended along the front-rear direction to form a second connecting part, and the second connecting part corresponds to the first reinforcing piece and is abutted against the fourth connecting surface. In an exemplary embodiment of the present utility model, a first supporting part and a second supporting part are provided between the front end connecting part and the rear end connecting part, wherein the first supporting part is connected and supported between the front end connecting part and the first connecting part to form a first force transmission path, and the second supporting part is connected and supported between the front end connecting part and the second connecting part to form a second force transmission path. In an exemplary embodiment of the present utility model, the second connecting portion is formed to extend downward in the up-down di