CN-121973857-A - A pillar upper reinforcement assembly, side wall assembly and vehicle

Abstract

The application provides an A-pillar stiffener assembly, a side wall assembly and a vehicle, wherein according to one example of the application, the A-pillar stiffener assembly comprises a hot air expansion pipe, and the hot air expansion pipe comprises a pipe beam, a first flange edge and a second flange edge; the pipe beam, the first flange edge and the second flange edge are integrally formed, the first flange edge and the second flange edge extend along the length direction of the pipe beam, the first flange edge and the second flange edge are arranged at intervals along the circumferential direction of the pipe beam, and the first flange edge and the second flange edge are used for connecting a side wall outer plate. The scheme provided by the application can reduce the number of parts and is convenient to assemble with the peripheral structure.

Inventors

• WANG XIAOJUAN
• CHENG NAN
• JIA ZHIJIE
• CHENG ZHIXIONG

Assignees

• 浙江吉利控股集团有限公司
• 吉利汽车研究院（宁波）有限公司

Dates

Publication Date

20260505

Application Date

20260302

Claims (12)

1. 1. The A column reinforcement assembly is characterized by comprising a hot air expansion pipe, wherein the hot air expansion pipe comprises a pipe beam, a first flange edge and a second flange edge; The pipe beam, the first flange edge and the second flange edge are integrally formed, the first flange edge and the second flange edge extend along the length direction of the pipe beam, and the first flange edge and the second flange edge are arranged at intervals along the circumferential direction of the pipe beam; the first flange edge and the second flange edge are used for connecting a side wall outer plate.
2. 2. The a-pillar upper reinforcement assembly of claim 1, further comprising an a-pillar connection transition plate, wherein the hot gas expansion tube comprises a first section for connection with the a-pillar lower reinforcement assembly, and wherein the a-pillar connection transition plate is fixedly connected to the first section.
3. 3. The a-pillar reinforcement assembly of claim 2, wherein said a-pillar connection transition plate is riveted with a first flange edge and a second flange edge of said first section, respectively.
4. 4. The a-pillar stiffener assembly of claim 3, wherein the first flange edge and the second flange edge of the first section are each provided with a first rivet hole, and the a-pillar connection transition plate is riveted with the first flange edge and the second flange edge of the first section through the first rivet holes; wherein the first staking hole is also used to connect the a-pillar lower reinforcement assembly.
5. 5. The a-pillar upper reinforcement assembly according to any one of claims 1-4, further comprising a B-pillar connection transition plate, wherein the hot gas expansion tube further comprises a second section for connection with a B-pillar reinforcement, and wherein the B-pillar connection transition plate is fixedly connected to the second section.
6. 6. The a-pillar reinforcement assembly of claim 5, wherein said B-pillar connection transition plate is secured to a tubular beam of said second section.
7. 7. The a-pillar reinforcement assembly of claim 6, wherein said tubular beam includes a first wall on an inboard side, said B-pillar connecting transition plate being riveted with said first wall of said second section; the hot gas expander includes a first section for connection with an a-pillar lower reinforcement assembly, a first wall of the first section having a width less than a width of a first wall of the second section.
8. 8. The a-pillar reinforcement assembly according to any one of claims 1-4, 6, 7, wherein the hot gas expander further comprises a third section for connection with a C-pillar reinforcement, the a-pillar reinforcement assembly further comprising a C-pillar connection transition plate secured to the third section; and/or the first flange edge is positioned on the upper side of the tubular beam, and the second flange edge is positioned on the lower side of the tubular beam; and/or the included angle between the first flange edge and the horizontal direction is in the range of 0-30 degrees; And/or the included angle between the second flange edge and the vertical direction is in the range of 0-30 degrees.
9. 9. The a-pillar reinforcement assembly according to any one of claims 1-4, 6, 7, wherein the hot air expander tube comprises a first portion, a second portion, and a transition piece; The transition piece is located between the first part and the second part and is fixedly connected with the first part and the second part respectively, and the change rate of the radial section size of the first part and the radial section size of the second part is more than 8%.
10. 10. A side gusset reinforcement assembly comprising an a-pillar reinforcement assembly according to any one of claims 1 to 9.
11. 11. A side wall assembly comprising an a-pillar reinforcement assembly as claimed in any one of claims 1 to 9.
12. 12. A vehicle comprising an A-pillar reinforcement assembly according to any one of claims 1 to 9; or, the side gusset reinforcement assembly of claim 10; or, the side wall assembly of claim 11.

Description

A pillar upper reinforcement assembly, side wall assembly and vehicle Technical Field The application relates to the technical field of vehicle parts, in particular to an A-pillar upper reinforcement assembly, a side wall assembly and a vehicle. Background As the weight of the whole car is larger and larger, the collision safety standard is continuously upgraded, and the challenge on the collision safety of the car body is larger and larger. The reinforcing piece on the A column of the automobile body is an important component part of the automobile body structure, plays a vital role in the whole automobile collision, and is required to be prevented from being bent and deformed during the collision so as to ensure the living space of the passenger cabin, so that the reinforcing piece assembly on the A column is required to be reinforced during the design. In the related art, the reinforcement on the a-pillar is usually welded by an inner plate and an outer plate, and for passive safety requirements with higher and higher hardness, patch plates are usually added in the inner plate and the outer plate to improve the performance of the reinforcement on the a-pillar. However, the structure of the reinforcement assembly on the A column is complex, parts are more, and a plurality of welding procedures are needed for molding, so that the accumulated errors of the size are difficult to control and the assembly cost is high. Disclosure of Invention The application provides an A-pillar reinforcement assembly and a vehicle, which can reduce the number of parts and is convenient to assemble with a peripheral structure. In a first aspect, the present application provides an a-pillar stiffener assembly comprising a hot gas expander tube comprising a tubular beam, a first flange edge and a second flange edge; The pipe beam, the first flange edge and the second flange edge are integrally formed, the first flange edge and the second flange edge extend along the length direction of the pipe beam, and the first flange edge and the second flange edge are arranged at intervals along the circumferential direction of the pipe beam; the first flange edge and the second flange edge are used for connecting a side wall outer plate. Optionally, the a-pillar upper reinforcement assembly further includes an a-pillar connection transition plate, the hot gas expansion tube includes a first section for connection with the a-pillar lower reinforcement assembly, and the a-pillar connection transition plate is fixedly connected to the first section. Optionally, the a-pillar connecting transition plate is riveted with the first flange edge and the second flange edge of the first section, respectively. Optionally, the first flange edge and the second flange edge of the first section are both provided with first riveting holes, and the a-pillar connecting transition plate is riveted with the first flange edge and the second flange edge of the first section through the first riveting holes; wherein the first staking hole is also used to connect the a-pillar lower reinforcement assembly. Optionally, the reinforcement assembly on the column a further comprises a column B connecting transition plate, the hot gas expansion pipe further comprises a second section for connecting with the reinforcement on the column B, and the column B connecting transition plate is fixedly connected with the second section. Optionally, the B-pillar connecting transition plate is fixed to the tubular beam of the second section. Optionally, the tubular beam comprises a first wall located on the inner side, and the B-pillar connecting transition plate is riveted with the first wall of the second section; the hot gas expander includes a first section for connection with an a-pillar lower reinforcement assembly, a first wall of the first section having a width less than a width of a first wall of the second section. Optionally, the hot air expansion pipe further comprises a third section connected with the C-pillar reinforcement, and the a-pillar upper addition member assembly further comprises a C-pillar connecting transition plate fixed to the third section. Optionally, the first flange edge is located on the upper side of the tubular beam, and the second flange edge is located on the lower side of the tubular beam. Optionally, an included angle between the first flange edge and the horizontal direction is in a range of 0 to 30 degrees. Optionally, an included angle between the second flange edge and the vertical direction is in a range of 0-30 degrees. Optionally, the hot gas expansion tube comprises a first part, a second part and a transition piece; The transition piece is located between the first part and the second part and is fixedly connected with the first part and the second part respectively, and the change rate of the radial section size of the first part and the radial section size of the second part is more than 8%. In a second aspect, the present applicatio