Inner plate front assembly lap joint structure

Abstract

The utility model discloses an inner plate front assembly lap joint structure which comprises a B column inner plate and an edge beam inner plate and is applied to lap joint of the B column inner plate and the edge beam inner plate. A plurality of welding spots are arranged on the lap joint overlapping face of the B column inner plate and the edge beam inner plate, the welding spots are evenly distributed in a staggered mode in the transverse direction and the longitudinal direction, the two welding spots on the outermost side in the transverse direction cover 90% or above of the transverse distance of the lap joint overlapping face, and the two welding spots on the outermost side in the longitudinal direction cover 90% or above of the longitudinal distance of the lap joint overlapping face. The welding spots are evenly distributed on the lap joint overlapping face in a staggered mode, the purpose of improving collision safety is achieved, the structure is simple, development cost does not need to be additionally increased, market competitiveness is greatly improved, and wide application can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle body structure installation technology, specifically to an inner panel front assembly overlap structure. Background Technology

[0002] In traditional straightening vehicles, the B-pillar inner panel assembly is welded to the side beam body assembly using a single-row resistance fusion welding connection. This assembly is then welded together with the A-pillar inner panel assembly, retractor mounting plate, side beam body assembly, and passenger handrail bracket assembly to form the overlapping structure of the front inner panel assembly. This single-row weld distribution weakens collision safety performance and, during welding, concentrates stress in one row, resulting in unsightly welds. Utility Model Content

[0003] The purpose of this utility model is to provide an overlapping structure for the front assembly of the inner panel to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an inner panel front assembly overlap structure, including a B-pillar inner panel and a side beam inner panel, wherein the overlap structure is applied to the overlap between the B-pillar inner panel and the side beam inner panel;

[0005] The overlapping surfaces of the inner panels of the B-pillar and the inner panels of the side beams have several weld points. The weld points are evenly and alternately distributed in the transverse and longitudinal directions. The two outermost weld points in the transverse direction cover more than 90% of the transverse distance of the overlapping surfaces, and the two outermost weld points in the longitudinal direction cover more than 90% of the longitudinal distance of the overlapping surfaces.

[0006] Preferably, the inner panel of the side beam is placed on the inside of the vehicle.

[0007] Preferably, the solder joints are distributed in a "W" shape.

[0008] Preferably, there are five solder joints arranged in two rows along the longitudinal direction.

[0009] Preferably, the lateral and longitudinal spacing between adjacent solder joints is between 20mm and 40mm.

[0010] Preferably, the longitudinal span of the overlapping surfaces is between 45mm and 50mm.

[0011] Preferably, the weld joints are welded using resistance fusion welding.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this utility model achieves the purpose of improving collision safety by evenly and alternately distributing welding points on the overlapping surface. This structure is simple, requires no additional development costs, greatly enhances market competitiveness, and can be widely used. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the solder joint distribution structure;

[0015] Figure 3 This is a cross-sectional view of the overlapping structure of this utility model;

[0016] Figure 4 This is a cross-sectional view of a traditional overlapping structure. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-4 As shown, this utility model provides a technical solution: including B-pillar inner plate 2 and side beam inner plate 3, with an overlapping structure applied to the overlapping of B-pillar inner plate 2 and side beam inner plate 3;

[0019] The overlapping surface 21 of the inner plate 2 of the B-pillar and the inner plate 3 of the side beam has several weld points. The weld points are evenly and alternately distributed in the transverse and longitudinal directions. The two outermost weld points in the transverse direction cover more than 90% of the transverse distance of the overlapping surface 21, and the two outermost weld points in the longitudinal direction cover more than 90% of the longitudinal distance of the overlapping surface 21.

[0020] Specific reference Figure 2 As shown, the solder joints are distributed in a "W" shape. There are five solder joints, arranged in two rows vertically. It is worth mentioning that... Figure 2 There are actually seven weld points. This application only describes the five weld points on the front of the overlapping surface 21. The weld points on both sides are for the side assembly, and the design in this application is consistent with the conventional structure. (Refer to...) Figure 2 As shown, taking weld points A and B as examples, the horizontal and vertical spacing between adjacent weld points is between 20mm and 40mm. The vertical span of the overlapping surfaces is between 45mm and 50mm.

[0021] The solder joint design in this embodiment has the following advantages:

[0022] It has high strength, and the special shape design of the W-shaped weld joint allows it to better distribute stress when subjected to force, thereby improving the overall strength of the welded joint.

[0023] It has good sealing properties; this weld point shape provides better sealing performance and is especially suitable for applications requiring leak prevention.

[0024] With a high aesthetic appeal, W-shaped weld joints typically result in a neater and more uniform weld appearance.

[0025] It has wide adaptability and can be applied to the welding of a variety of metal materials.

[0026] It has high reliability because it is formed by multiple welding layers, which reduces the risk of defects that may exist in a single welding layer.

[0027] Continue to refer to Figure 3 As shown, the inner panel 3 of the side beam is located on the inside of the vehicle, while the inner panel 2 of the B-pillar is located on the outside. Figure 4 In traditional structures, the inner edge panel 3 is placed on the outer side of the vehicle. This design of the present application can improve the safety of the vehicle occupants in the event of a collision, where the weld points tear, causing the inner panel to spring open and impact the protective panel.

[0028] Finally refer to Figure 1 As shown, the entire welding process also includes the A-pillar inner panel assembly 1, the B-pillar inner panel 2, the side beam inner panel 3, the retractor mounting plate 4, the passenger handrail bracket assembly 5, and the front roof beam connecting plate assembly 6. First, the side beam inner panel 3, the B-pillar inner panel 2, the retractor mounting plate 4, the passenger handrail bracket assembly 5, and the front roof beam connecting plate assembly 6 are placed on the assembly fixture in layers. After being welded by resistance fusion welding, the front inner panel assembly is formed.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A front panel assembly overlap structure, characterized in that: Including the inner plate of the B-column (2) and the inner plate of the side beam (3), the lap structure is applied to the lap of the inner plate of the B-column (2) and the inner plate of the side beam (3); The overlapping surface (21) of the inner plate of the B-pillar (2) and the inner plate of the side beam (3) has several weld points. The weld points are evenly and alternately distributed in the transverse and longitudinal directions. The two outermost weld points in the transverse direction cover more than 90% of the transverse distance of the overlapping surface (21), and the two outermost weld points in the longitudinal direction cover more than 90% of the longitudinal distance of the overlapping surface (21).

2. The overlapping structure of the front assembly of the inner panel according to claim 1, characterized in that: The inner plate (3) of the side beam is placed inside the vehicle.

3. The overlapping structure of the front assembly of the inner panel according to claim 2, characterized in that: The solder joints are distributed in a "W" shape.

4. The overlapping structure of the front assembly of the inner panel according to claim 3, characterized in that: There are five solder joints, arranged in two rows along the longitudinal direction.

5. The overlapping structure of the front assembly of the inner panel according to claim 1, characterized in that: The horizontal and vertical spacing between adjacent weld points is between 20mm and 40mm.

6. The overlapping structure of the front assembly of the inner panel according to claim 5, characterized in that: The longitudinal span of the overlapping surfaces is between 45mm and 50mm.

7. The overlapping structure of the front assembly of the inner panel according to claim 5, characterized in that: The weld joints are welded using resistance fusion welding.

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