CN-224197831-U - Inner plate front assembly lap joint structure

Abstract

The utility model discloses an inner plate front assembly lap joint structure which comprises a B-pillar inner plate and an edge beam inner plate, wherein the lap joint structure is applied to lap joint of the B-pillar inner plate and the edge beam inner plate, a lap joint face of the B-pillar inner plate and the edge beam inner plate is provided with a plurality of welding spots, the welding spots are uniformly and alternately distributed along the transverse direction and the longitudinal direction, the two welding spots at the outermost side of the transverse direction cover more than 90% of the transverse distance of the lap joint face, and the two welding spots at the outermost side of the longitudinal direction cover more than 90% of the longitudinal distance of the lap joint face. The welding spots are uniformly and alternately distributed on the overlapping surfaces, so that the aim of improving collision safety is fulfilled.

Inventors

• WANG LILI
• LI MENXIANG
• ZHENG JUN

Assignees

• 奇瑞汽车股份有限公司

Dates

Publication Date

20260505

Application Date

20250526

Claims (7)

1. 1. The lap joint structure of the inner plate front assembly is characterized by comprising a B-pillar inner plate (2) and an edge beam inner plate (3), wherein the lap joint structure is applied to the lap joint of the B-pillar inner plate (2) and the edge beam inner plate (3); The overlapping surface (21) of the B-pillar inner plate (2) and the boundary beam inner plate (3) is provided with a plurality of welding spots which are uniformly and alternately distributed along the transverse direction and the longitudinal direction, wherein the two welding spots at the outermost side of the transverse direction cover more than 90% of the transverse distance of the overlapping surface (21), and the two welding spots at the outermost side of the longitudinal direction cover more than 90% of the longitudinal distance of the overlapping surface (21).
2. 2. The overlap structure of an inner panel front assembly according to claim 1, wherein the side sill inner panel (3) is disposed on the vehicle inner side.
3. 3. The overlapping structure of the front assembly of the inner plate as claimed in claim 2, wherein the welding spots are distributed along a W shape.
4. 4. A lap joint structure of an inner panel front assembly according to claim 3, wherein five welding spots are provided and two rows are provided in a longitudinal direction.
5. 5. The overlapping structure of the front assembly of the inner plate of claim 1, wherein the transverse spacing and the longitudinal spacing of adjacent welding spots are between 20mm and 40 mm.
6. 6. The overlapping structure of an inner panel front assembly as set forth in claim 5, wherein the overlapping surface has a longitudinal span of between 45mm and 50 mm.
7. 7. The overlap joint structure of an inner panel front assembly according to claim 5, wherein the welding points are welded by resistance welding.

Description

Inner plate front assembly lap joint structure Technical Field The utility model relates to the technical field of vehicle body structure installation, in particular to an inner plate front assembly lap joint structure. Background A traditional straightening vehicle is welded on a side beam body assembly through a B-pillar inner plate assembly, is connected through single-row resistance fusion welding, and is welded with an A-pillar inner plate assembly, a retractor mounting plate, a side beam body assembly and a passenger handrail support assembly to form an inner plate front assembly lap joint structure. The distribution of welding spots of a single row weakens the collision safety performance on one hand, and meanwhile, when welding, stress is concentrated on one row, so that the welding seam is not attractive. Disclosure of utility model The utility model aims to provide an overlap joint structure of an inner plate front assembly, so as to solve the problems in the prior art. In order to achieve the purpose, the utility model provides the technical scheme that the overlapping structure of the front assembly of the inner plate comprises a B-pillar inner plate and an edge beam inner plate, and the overlapping structure is applied to the overlapping of the B-pillar inner plate and the edge beam inner plate; The overlap joint surface of the B column inner plate and the boundary beam inner plate is provided with a plurality of welding spots which are uniformly distributed in a staggered manner along the transverse direction and the longitudinal direction, wherein the two welding spots at the outermost side in the transverse direction cover more than 90% of the transverse distance of the overlap joint surface, and the two welding spots at the outermost side in the longitudinal direction cover more than 90% of the longitudinal distance of the overlap joint surface. Preferably, the side sill inner panel is disposed on the vehicle interior side. Preferably, the welding spots are distributed along a W shape. Preferably, the welding spots are provided with five places, and two rows are provided in the longitudinal direction. Preferably, the lateral spacing and the longitudinal spacing of adjacent welding spots are between 20mm and 40 mm. Preferably, the longitudinal span of the overlapping surface is between 45mm and 50 mm. Preferably, the welding spot is welded by resistance welding. Compared with the prior art, the utility model has the beneficial effects that the welding spots are uniformly and alternately distributed on the overlapping surface, so that the aim of improving the collision safety is fulfilled. Drawings FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a schematic diagram of a solder joint distribution structure; FIG. 3 shows the present utility model a cross-sectional view of the lap joint structure; fig. 4 is a cross-sectional view of a conventional lap joint structure. Detailed Description The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. 1-4, The utility model provides a technical scheme that the welding structure comprises a B-pillar inner plate 2 and a boundary beam inner plate 3, wherein the welding structure is applied to the joint between the B-pillar inner plate 2 and the boundary beam inner plate 3; The overlapping surface 21 of the B-pillar inner plate 2 and the boundary beam inner plate 3 is provided with a plurality of welding spots which are uniformly and alternately distributed along the transverse direction and the longitudinal direction, wherein the two welding spots at the outermost side of the transverse direction cover more than 90% of the transverse distance of the overlapping surface 21, and the two welding spots at the outermost side of the longitudinal direction cover more than 90% of the longitudinal distance of the overlapping surface 21. Referring specifically to FIG. 2, the welds are distributed along a "W" shape. Five welding spots are arranged, and two rows are longitudinally arranged. It should be noted that in fig. 2, there are actually seven welding spots. The present application is described only for the fifth front face of the overlap surface 21. The side edges are welding spots of the side wall assembly, and the design of the application is consistent with the traditional structure. Referring to FIG. 2, two solder joints are taken as an example A, B, and the transverse spacing and the longitudinal spacing of adjacent solder joints are between 20mm and 40 mm. The longitudinal