Side wall cross beam lap joint structure and vehicle

Abstract

The application discloses a side wall transverse beam lap joint structure and a vehicle, and relates to the technical field of vehicles. On the one hand, the structure comprises a side wall assembly and a transverse beam. The side wall assembly comprises a side wall main body and two limiting portions. The side wall main body is provided with a sunken platform. The two limiting portions are connected with the side wall main body and are located on the two sides of the sunken platform. The transverse beam comprises a transverse beam main body, a lap joint portion and a sunken portion. The lap joint portion is connected with the transverse beam main body and extends towards the side wall assembly. The lap joint portion is in lap joint cooperation with the sunken platform. The sunken portion is arranged at the end portion of the transverse beam main body connected with the lap joint portion. The sunken portion protrudes towards the sunken direction of the sunken platform and is located between the two limiting portions. On the other hand, the vehicle comprises the above-mentioned side wall transverse beam lap joint structure. Through the lap joint cooperation of the lap joint portion and the sunken platform and the arrangement of the sunken portion between the two limiting portions, the relative position of the side wall assembly and the transverse beam is limited, positioning is convenient, the forming procedure is less, and the vehicle is not prone to deformation caused by knocking and is easy to process, thereby improving the processing efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a side wall cross beam lap joint structure and a vehicle. BACKGROUND

[0002] The lap joint system of the body side wall and the front cross beam of the roof of the existing vehicle models on the market comprises an A-pillar inner panel, an A-pillar reinforcement panel and a front cross beam of the roof. When the body assembly is processed, the top cross beam and the side wall assembly generally need to be pre-lapped, and then the two are welded to ensure the assembly rhythm of the general assembly.

[0003] In the prior art, a pre-lap buckle is generally provided on one of the top cross beam and the side wall assembly, and a mounting hole matched with the pre-lap buckle is provided on the other, and the pre-lap buckle is inserted into the mounting hole to realize the pre-lap between the top cross beam and the side wall assembly.

[0004] However, the positioning method using buckles and mounting holes has the following problems: Figure 1 When the pre-lap buckle is bent in the direction of the vehicle interior to be inserted into the mounting hole from above, the side air curtain in the A-pillar will interfere with the buckle and even break, and if interference with other structures of the vehicle body is to be avoided, the pre-lap buckle needs to be folded twice, which not only increases the construction cost and time, but also makes the set-up of the folded buckle prone to collision and deformation, and the quality management is difficult and the processing cost is high. Figure 2 When the pre-lap buckle is bent in the direction of the vehicle exterior to be inserted into the mounting hole from below, it is difficult to avoid the problem of interference with the roof when the laser brazing of the roof body and the roof body share a set of side wall assembly. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide a side wall cross beam lap joint structure and a vehicle to solve the problem of interference between the pre-lap structure of the side wall assembly and the top cross beam and other structures of the vehicle body in the prior art.

[0006] To achieve the above purpose, the technical solution adopted by the present application is:

[0007] On the one hand, the present application provides a side wall cross beam lap joint structure, comprising:

[0008] a side wall assembly comprising a side wall main body and two limiting parts, the side wall main body being provided with a sunken platform, the two limiting parts being connected with the side wall main body and located on both sides of the sunken platform;

[0009] a cross beam comprising:

[0010] a cross beam main body;

[0011] a lap joint part connected with the cross beam main body and extending towards the side wall assembly, the lap joint part being lap jointed with the sunken platform.

[0012] a sinking portion provided at an end of the beam body connected with the overlapping portion, the sinking portion protruding in a sinking direction of the sinking platform and located between the two limiting portions.

[0013] In some optional embodiments, the sinking portion includes two arc-shaped sinking plates respectively located at two sides of the beam body and connected with the beam body.

[0014] In some optional embodiments, the arc-shaped sinking plate includes a flush section and a sinking section, one side of each of the flush section and the sinking section being connected with the beam body, the flush section being flush with the beam body, the sinking section sinking in the sinking direction of the sinking platform, the connection between the sinking section and the flush section being curved excessively, and one side of the sinking section connected with the beam body being curved excessively.

[0015] In some optional embodiments, one end of the sinking section close to the overlapping portion is curved in the direction of the overlapping portion.

[0016] In some optional embodiments, the two arc-shaped sinking plates are located between the two limiting portions and spaced apart from the limiting portions by a first specified distance.

[0017] In some optional embodiments, the sinking depth of the sinking section of the arc-shaped sinking plate relative to the overlapping portion is 6-15 mm.

[0018] In some optional embodiments, when the overlapping portion is engaged with the sinking platform, the excessively curved connection between the sinking section and the flush section of the arc-shaped sinking plate overlaps with the limiting portions in the length direction of the beam body.

[0019] In some optional embodiments, when the overlapping portion is engaged with the sinking platform, the top surface of the overlapping portion is flush with the top surface of the side body.

[0020] In some optional embodiments, when the overlapping portion is engaged with the sinking platform, the plane on which the cut edge of the arc-shaped sinking plate is located is parallel to the cut edge side wall close to one side of the limiting portion.

[0021] On the other hand, the application also provides a vehicle comprising the side beam overlapping structure.

[0022] Compared with the prior art, the advantages of the present invention are as follows: by overlapping the overlapping part with the sunken platform, the relative position of the crossbeam in its length direction is defined. When overlapping, the sunken part is located between the two limiting parts, thereby defining the relative position of the crossbeam in its width direction. This achieves the technical effect of pre-positioning the side assembly and the crossbeam. Moreover, the positioning is convenient, the forming process is reduced, and the manufacturing process of the fastener and mounting hole matching in the prior art, which requires manual secondary folding, is simplified. This improves the processing efficiency, makes it easy to process, is not easily damaged or deformed, and reduces the processing cost and quality control cost. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overlapping structure in Embodiment 1 of the prior art;

[0025] Figure 2 This is a schematic diagram of the overlapping structure in Embodiment 2 of the prior art;

[0026] Figure 3 This is a structural schematic diagram of a vehicle with an overlapping structure of side crossbeams according to the present invention;

[0027] Figure 4 This is a schematic diagram of the lap joint of a side beam lap joint structure according to the present invention;

[0028] Figure 5 for Figure 4 A side view diagram;

[0029] Figure 6 for Figure 4 A top-down view;

[0030] Figure 7 for Figure 6 A schematic diagram of the cross-section of AA.

[0031] In the diagram: 1. Side panel assembly; 11. Limiting part; 12. Sinking platform; 13. Side panel main body; 2. Crossbeam; 21. Crossbeam main body; 22. Overlapping part; 23. Sinking part; 231. Arc-shaped sinking plate; 3. Inner plate of beam; 4. Folding part; 5. Side air curtain. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] On the one hand, such as Figure 3 As shown, this application provides a side panel crossbeam overlap structure, including a side panel assembly 1 and a crossbeam 2. During processing, the end of the crossbeam 2 is overlapped onto the side panel assembly 1 to complete the pre-positioning, and then further positioning and welding are performed according to processing requirements.

[0035] Specifically, such as Figures 4-6 As shown, the side enclosure assembly 1 includes a side enclosure body 13 and two limiting parts 11. The side enclosure body 13 has a sunken platform 12. The two limiting parts 11 are connected to the side enclosure body 13 and are located on both sides of the sunken platform 12. The crossbeam 2 includes a crossbeam body 21, an overlapping part 22 and a sunken part 23. The overlapping part 22 is connected to the crossbeam body 21 and extends into the side enclosure assembly 1. The overlapping part 22 overlaps with the sunken platform 12. The sunken part 23 is located at the end where the crossbeam body 21 connects to the overlapping part 22. The sunken part 23 protrudes in the sunken direction of the sunken platform 12 and is located between the two limiting parts 11.

[0036] It is understood that during the pre-overlapping of the crossbeam 2 and the side assembly 1, the overlapping part 22 is overlapped on the sunken platform 12, at which time the sunken part 23 is located between the two limiting parts 11. Through the overlapping cooperation between the overlapping part 22 and the sunken platform 12, the relative position of the crossbeam 2 in its length direction is limited, and during the overlap, the sunken part 23 is located between the two limiting parts 11, thereby limiting the relative position of the crossbeam in its width direction.

[0037] In this example, the sunken platform 12 is a rectangular structure adapted to the size of the overlapping part 22, and the sunken platform 12 is located at the edge of the side body 13 with an opening on one side, thereby facilitating the overlapping and mating of the overlapping part 22. The limiting part 11 extends away from the side body 13, and a receiving space for accommodating the sunken part 23 is formed between the two limiting parts 11, thereby limiting the displacement range of the crossbeam 2 within the aforementioned receiving space. In other embodiments, the limiting part 11 may also be a baffle structure extending from the inner plate 3 of the beam towards the crossbeam 2, which can be flexibly set according to the material utilization rate or design requirements of the side body 13 or the inner plate 3 of the beam, and is not limited here.

[0038] At both ends of the main body 21 of the crossbeam, there are overlapping portions 22 and recessed portions 23, so that they are initially positioned with the side assemblies 1 on both sides of the vehicle width direction and overlap between the two side assemblies 1.

[0039] In some alternative embodiments, the sunken portion 23 includes arc-shaped sunken plates 231 located on both sides of the main beam 21 and connected to the main beam 21.

[0040] It is understood that there are two arc-shaped sunken plates 231, located on both sides of the overlapping portion 22 and connected to the main body of the crossbeam 21. In this example, the arc-shaped sunken plates 231 are connected to the overlapping portion 22 and the main body of the crossbeam 21 and are integrally formed.

[0041] Furthermore, in some optional embodiments, the aforementioned arc-shaped sunken plate 231 includes a flush section and a sunken section. One side of the flush section and the sunken section are connected to the main body of the crossbeam 21 and integrally formed. The flush section is flush with the main body of the crossbeam 21, and the sunken section sinks in the sunken direction of the sunken platform 12. The connection between the sunken section and the flush section is curved and transitioned, and the side of the sunken section connected to the main body of the crossbeam 21 has an arc transition.

[0042] It is understood that the sunken section, the flush section, and the main body 21 of the crossbeam are all connected and integrally formed. The sunken section is connected to the main body 21 of the crossbeam and located at the connection between the main body 21 of the crossbeam and the overlapping part 22. Due to the sunken structure, the height difference between the sunken section and the overlapping part 22 forms an L-shaped stepped platform. When the overlapping part 22 overlaps on the sunken platform 12, the aforementioned stepped platform abuts against the outer edge of the sunken platform 12, thereby limiting the position of the crossbeam 2 in the direction close to the side assembly 1.

[0043] In this example, when the overlapping part 22 overlaps with the sunken platform 12 and the step platform abuts against the outer edge of the sunken platform 12, the end of the overlapping part 22 that is away from the crossbeam body 21 is a certain distance away from the side wall of the sunken platform 12.

[0044] In some alternative embodiments, such as Figure 7 As shown, the end of the sunken section near the overlapping part 22 bends toward the overlapping part 22.

[0045] To prevent the side curtain airbag from puncturing upon detonation when the lower section bends inwards towards the vehicle's interior, the end of the lower section near the overlap 22 is bent towards the overlap 22, thus directing the end of the lower section away from the flush section toward the overlap 22. This creates an arc-shaped sidewall that contacts the side curtain airbag after detonation, forming an arc-shaped protective barrier along the airbag's expansion path and preventing puncture.

[0046] Preferably, the end of the sinking section close to the lap joint 22 has a height difference of 0-2mm in the vehicle height direction with the inner panel 3 connected to the side wall assembly 1 close to the inner side of the vehicle body, preferably the height is flush with each other, to prevent the airbag from being cut by the cutting edge at the moment of explosion, and being squeezed into the gap between the cutting edge of the lap joint 22 end and the sinking platform 12 side cutting edge.

[0047] In some optional embodiments, two above-mentioned arc-shaped sinking plates 231 are located between two above-mentioned limiting parts 11 and are spaced apart from the above-mentioned limiting parts 11 by a first set distance.

[0048] Specifically, when the lap joint 22 is lapped with the sinking platform 12, the arc-shaped sinking plate 231 is located in the accommodating space between the two limiting parts 11, and the widest part of the outer contour line of the two arc-shaped sinking plates 231 is spaced apart from the side walls of the two limiting parts 11 by a first set distance, thereby reserving a certain displacement space for the cross beam 2 in the width direction thereof, facilitating accurate positioning before welding according to design requirements.

[0049] In this example, the first set distance is 1.5-2mm.

[0050] In some optional embodiments, the sinking depth of the sinking section of the above-mentioned arc-shaped sinking plate 231 relative to the above-mentioned lap joint 22 is 6-15mm.

[0051] In order to further ensure the effectiveness of the limiting of the side wall assembly 1 and the cross beam 2 in the width direction of the cross beam 2, the sinking depth of the sinking section of the arc-shaped sinking plate 231 is generally 6-15mm, preferably 8-10mm.

[0052] In some optional embodiments, when the above-mentioned lap joint 22 is lapped with the above-mentioned sinking platform 12, the over-connected part of the arc-shaped bending of the sinking section and the flush section overlaps with the above-mentioned limiting part 11 in the length direction of the above-mentioned cross beam main body 21.

[0053] It can be understood that the sinking section needs to be located close to the inner side of the limiting part 11, i.e. on both sides of the above-mentioned lap joint 22 of the side wall assembly 1, and connected to the cross beam main body 21 through the flush section. Therefore, in order to enable the over-connected part of the arc-shaped bending of the sinking section and the flush section to resist and limit the displacement of the cross beam 2 in the width direction thereof relative to the side wall assembly 1, and avoid the limiting part 11 being located in the arc-shaped groove of the arc-shaped sinking plate 231 and losing the limiting effect, it is preferred that the over-connected part of the arc-shaped bending of the sinking section and the flush section is spaced apart from the above-mentioned limiting part 11 in the length direction of the above-mentioned cross beam main body 21 by a distance H greater than or equal to 2mm.

[0054] In some optional embodiments, when the overlapping part 22 overlaps with the sunken platform 12, the plane containing the outer contour of the cut edge of the arc-shaped sunken plate 231 is parallel to the sidewall of the cut edge of the limiting part 11 on the side closest to it.

[0055] The purpose of this arrangement is to ensure that the arc-shaped sunken plate 231 is precisely positioned when it is stopped by the limiting part 11, avoiding a single point of contact when the arc-shaped sunken plate 231 contacts the limiting part 11. In this example, the two limiting parts 11 are symmetrically arranged with the center line of the sunken platform 12 as the axis, and the two arc-shaped sunken plates 231 are symmetrically arranged with the central axis of the crossbeam body 21 as the axis. This ensures that when the overlapping part 22 overlaps on the sunken platform 12, the spacing between the two arc-shaped sunken plates 231 and the limiting parts 11 on both sides is the same, and the plane containing the outer contours of the two arc-shaped sunken plates 231 is parallel to the side wall of the two limiting parts 11 on the side closer to each other, so that the positive and negative displacements along the width direction of the crossbeam 2 are the same.

[0056] In some optional embodiments, when the overlapping part 22 is engaged with the sunken platform 12, the top surface of the overlapping part 22 is flush with the top surface of the side body 13.

[0057] This overlapping and fitting allows the outer contour lines of the crossbeam 2 and the side assembly 1 to have a smooth shape.

[0058] In this example, the sunken platform 12 and the side body 13 transition smoothly.

[0059] It should be noted that the side assembly 1 and the crossbeam 2 can be fabricated using sheet metal according to design requirements, and the structural dimensions of the limiting part 11, the sunken platform 12, and the sunken part 23 can be adjusted accordingly. No specific restrictions are imposed in this example. The side body 13 and the two limiting parts 11 of the side assembly 1 are integrally formed, and the crossbeam body 21, the overlapping part 22, and the sunken part 23 of the crossbeam 2 are integrally formed.

[0060] The maximum depth of the arc-shaped sunken plate 231 can be adjusted arbitrarily according to the on-site process control level and the forming performance of the crossbeam 2. The purpose is to prevent the crossbeam from detaching from the side assembly 1 due to vertical shaking during the transfer between line processes.

[0061] Secondly, this application also provides a vehicle including the aforementioned side crossbeam overlapping structure.

[0062] like Figure 3 As shown, the crossbeam 2 overlaps with the two side assemblies 1 in the vehicle width direction, thus forming the roof structure of the vehicle. The pre-overlapping of the crossbeam 2 and the side assemblies 1 completes the pre-positioning of the crossbeam 2 and the side assemblies 1 on the vehicle body, thereby facilitating further processing.

[0063] Specifically, as shown in Figures 4-6 The side wall assembly 1 includes a side wall body 13 and two limiting parts 11. The side wall body 13 is provided with a sunken platform 12. The two limiting parts 11 are connected to the side wall body 13 and located on both sides of the sunken platform 12. The cross beam 2 includes a cross beam body 21, a lap joint part 22 and a sunken part 23. The lap joint part 22 is connected to the cross beam body 21 and extends to the side wall assembly 1. The lap joint part 22 is lap jointed with the sunken platform 12. The sunken part 23 is arranged at the end of the cross beam body 21 connected to the lap joint part 22. The sunken part 23 protrudes to the sunken direction of the sunken platform 12 and is located between the two limiting parts 11.

[0064] It can be understood that when the cross beam 2 and the side wall assembly 1 are pre-lap jointed, the lap joint part 22 is lap jointed on the sunken platform 12, and at this time, the sunken part 23 is located between the two limiting parts 11. Through the lap joint of the lap joint part 22 and the sunken platform 12, the relative position of the cross beam 2 in the length direction is limited, and the sunken part 23 is located between the two limiting parts 11, thereby limiting the relative position of the cross beam in the width direction.

[0065] In this example, the sunken platform 12 is a rectangular structure with a size suitable for the lap joint part 22. The sunken platform 12 is arranged at the edge of the side wall body 13 and is open on one side, thereby facilitating the lap joint of the lap joint part 22. The limiting part 11 protrudes away from the side wall body 13, and the space between the two limiting parts 11 forms a containing space for containing the sunken part 23, thereby limiting the displacement range of the cross beam 2 in the containing space. In other embodiments, the limiting part 11 can also be a baffle structure protruding from the beam inner plate 3 to the cross beam 2. The limiting part 11 can be flexibly arranged according to the material utilization rate or design requirement of the side wall body 13 or the beam inner plate 3, which is not limited herein.

[0066] At both ends of the cross beam body 21, the lap joint part 22 and the sunken part 23 are arranged, thereby preliminarily positioning the side wall assembly 1 on both sides of the vehicle width direction and lap jointed between the two side wall assemblies 1.

[0067] It should be noted that in this example, the side wall body 13 and the two limiting parts 11 of the side wall assembly 1 are integrally formed, and the cross beam body 21, the lap joint part 22 and the sunken part 23 of the cross beam 2 are integrally formed. The maximum depth of the sunken part 23 can be adjusted arbitrarily according to the on-site process control level and the sheet forming performance of the cross beam 2.

[0068] In some optional embodiments, the sunken part 23 includes arc-shaped sunken plates 231 respectively located on both sides of the cross beam body 21 and connected to the cross beam body 21.

[0069] It can be understood that the arc-shaped sinking plate 231 is provided with two and is located on both sides of the lap joint part 22 and is connected with the cross beam body 21. In this example, the arc-shaped sinking plate 231 is connected with the lap joint part 22 and the cross beam body 21 and is integrally formed.

[0070] Further, in some optional embodiments, the arc-shaped sinking plate 231 includes a flush section and a sinking section, one side of the flush section and the sinking section is connected with the cross beam body 21, the flush section is flush with the cross beam body 21, the sinking section sinks in the sinking direction of the sinking platform 12, the connection between the sinking section and the flush section is curved excessively, and one side of the sinking section connected with the cross beam body 21 is curved.

[0071] It can be understood that the sinking section is connected with the flush section and the cross beam body 21 and is integrally formed, the sinking section is connected with the cross beam body 21 and is located at the connection between the cross beam body 21 and the lap joint part 22, and because the sinking section has a sinking structure, the height difference with the lap joint part 22 forms an L-shaped stepped platform. When the lap joint part 22 is lapped on the sinking platform 12, the stepped platform abuts against the outer edge of the sinking platform 12, thereby limiting the position of the cross beam 2 in the direction close to the side wall assembly 1.

[0072] In this example, when the lap joint part 22 is lapped with the sinking platform 12 and the stepped platform abuts against the outer edge of the sinking platform 12, the end of the lap joint part 22 away from the cross beam body 21 is away from the side wall of the sinking platform 12 by a certain distance.

[0073] In some optional embodiments, as shown in Figure 7 the end of the sinking section close to the lap joint part 22 is curved towards the lap joint part 22.

[0074] In order to avoid the sinking section being curved and extending towards the inside of the vehicle and being pierced through the air curtain when the air curtain bursts, the end of the sinking section close to the lap joint part 22 is curved towards the lap joint part 22, so that the end of the sinking section away from the flush section is towards the lap joint part 22. In this way, the curved side wall formed by the sinking section contacts the burst air curtain, forms an arc-shaped protection on the expansion path of the burst air curtain, and avoids piercing the air curtain.

[0075] Preferably, the height difference between the end of the sinking section close to the lap joint part 22 and the inner beam plate 3 connected to the side wall assembly 1 close to the inside of the vehicle body in the vehicle height direction is between 0-2mm, and preferably the heights are flush with each other. This prevents the air curtain from being pierced by the cutting edge when the air curtain bursts and squeezed into the gap between the end cutting edge of the lap joint part 22 and the side cutting edge of the sinking platform 12.

[0076] In some optional embodiments, the two arc-shaped sinking plates 231 are located between the two limiting parts 11 and are spaced apart from the limiting parts 11 by a first set distance.

[0077] Specifically, when the overlapping portion 22 overlaps with the sunken platform 12, the arc-shaped sunken plate 231 is located in the accommodation space between the two limiting portions 11, and the widest part of the outer contour line of the two arc-shaped sunken plates 231 is spaced apart from the side walls of the two limiting portions 11 by a first set distance, thereby reserving a certain displacement space for the cross beam 2 in the width direction thereof, facilitating accurate positioning according to design requirements before welding.

[0078] In the present example, the first set distance is 1.5-2 mm.

[0079] In some optional embodiments, the sunken section of the arc-shaped sunken plate 231 has a sunken depth of 6-15 mm relative to the sunken platform 12.

[0080] In order to further ensure the effectiveness of the limiting of the side wall assembly 1 and the cross beam 2 in the width direction of the cross beam 2, the sunken depth H1 of the sunken section of the arc-shaped sunken plate 231 is generally 6-15 mm, and preferably 8-10 mm.

[0081] In some optional embodiments, when the overlapping portion 22 overlaps with the sunken platform 12, the arc-shaped curved transition between the sunken section and the flush section of the arc-shaped sunken plate 231 overlaps with the limiting portion 11 in the length direction of the cross beam body 21.

[0082] It can be understood that the sunken section needs to be located on the side of the limiting portion 11 close to the vehicle body, i.e., on both sides of the overlapping portion 22 of the side wall assembly 1 and connected to the cross beam body 21 through the flush section. Therefore, in order to enable the arc-shaped curved transition between the sunken section and the flush section to abut against the limiting portion 11 to limit the displacement of the cross beam 2 in the width direction thereof relative to the side wall assembly 1 and avoid the limiting portion 11 being located in the arc-shaped groove of the arc-shaped sunken plate 231 and losing the limiting effect, it is preferred that the arc-shaped curved transition between the sunken section and the flush section is spaced apart from the limiting portion 11 in the length direction of the cross beam body 21 by a distance H2 of greater than or equal to 2 mm.

[0083] In some optional embodiments, when the overlapping portion 22 overlaps with the sunken platform 12, the plane on which the cut edge outer contour of the arc-shaped sunken plate 231 is located is parallel to the cut edge side wall close to one side of the limiting portion 11.

[0084] The purpose of such arrangement is to precisely limit the arc-shaped sinking plate 231 and avoid shaking when the arc-shaped sinking plate 231 is limited by the limiting part 11. In the example, the two limiting parts 11 are symmetrically arranged with the midline of the sinking platform 12 as the axis, and the two arc-shaped sinking plates 231 are symmetrically arranged with the mid-axis of the length direction of the beam body 21 as the axis, so that when the lap joint part 22 is lap jointed on the sinking platform 12, the interval distance between the two arc-shaped sinking plates 231 and the two limiting parts 11 is the same, and the plane where the outer contour of the two arc-shaped sinking plates 231 is located is parallel to the side wall on the side close to each other of the two limiting parts 11, so that the positive and negative displacement amount in the width direction of the beam 2 is the same.

[0085] In some optional embodiments, when the lap joint part 22 is lap jointed with the sinking platform 12, the top surface of the lap joint part 22 is flush with the top surface of the side wall body 13.

[0086] In this way, after lap joint, the outer contour line of the beam 2 and the side wall assembly 1 has a smooth line type.

[0087] In the example, the sinking platform 12 and the side wall body 13 are smoothly transitioned.

[0088] It should be noted that the side wall assembly 1 and the beam 2 can be sheet metal processed according to design requirements, and the structure size of the limiting part 11, the sinking platform 12, the sinking part 23 and the like is adjusted accordingly, which is not specifically limited in the example.

[0089] The lap joint structure of the side wall transverse beam and the vehicle of the present application, by the lap joint of the lap joint part 22 and the sunken platform 12, the relative position of the transverse beam 2 in the length direction is defined, the sunken part 23 is located between the two limiting parts 11 when lapping, thereby defining the relative position of the transverse beam in the width direction, so as to achieve the positioning effect of the side wall assembly 1 and the transverse beam 2, and the positioning is convenient, the forming process is less, the processing process of the existing technology of the buckle and the mounting hole cooperation still needs manual secondary folding is simplified, the folding fracture is avoided and the processing efficiency is improved; by setting the arc-shaped sunken plate 231, not only the relative position of the transverse beam 2 relative to the side wall assembly 1 in the width direction of the transverse beam 2 is defined, but also the arc-shaped curved side wall protruding into the vehicle body is formed, which forms an arc-shaped protection on the inflation path of the side curtain airbag explosion, and avoids the side curtain airbag being pierced; by making the arc-shaped curved excessive connection part of the sunken section and the flush section overlap with the limiting part 11 in the length direction of the transverse beam main body 21, the limiting part 11 is prevented from being located in the arc-shaped groove of the arc-shaped sunken plate 231 and being limited to fail; by making the plane where the outer contour of the arc-shaped sunken plate 231 is located parallel to the side wall close to one side of the limiting part 11, the arc-shaped sunken plate 231 can be accurately limited when being limited by the limiting part 11, and the single contact point condition of the arc-shaped sunken plate 231 and the limiting part 11 is avoided; the top surface of the lap joint part 22 is flush with the top surface of the side wall main body 13, after the lap joint cooperation, the outer contour line of the transverse beam 2 and the side wall assembly 1 has a smooth line type.

[0090] In the description of the present application, it should be noted that the positions or position relationships indicated by the terms "upper", "lower", etc. are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0091] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0092] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A side sill cross member lap joint structure characterized by, The application relates to a side wall assembly (1) and a cross beam (2) thereof. The side wall assembly (1) comprises a side wall body (13) and two limiting parts (11), the side wall body (13) is provided with a sunken platform (12), and the two limiting parts (11) are connected with the side wall body (13) and located on the two sides of the sunken platform (12). The cross beam (2) comprises: a cross beam body (21); a lap joint part (22) connected with the cross beam body (21) and extending towards the side wall assembly (1), the lap joint part (22) is lap jointed with the sunken platform (12); a sunken part (23) arranged at the end of the cross beam body (21) connected with the lap joint part (22), the sunken part (23) protrudes towards the sunken direction of the sunken platform (12) and is located between the two limiting parts (11). When the cross beam (2) and the side wall assembly (1) are pre-lap jointed, the lap joint part (22) is lap jointed on the sunken platform (12), at this time, the sunken part (23) is located between the two limiting parts (11), the relative position of the cross beam (2) in the length direction thereof is defined through the lap joint of the lap joint part (22) and the sunken platform (12), and the relative position of the cross beam (2) in the width direction thereof is defined through the fact that the sunken part (23) is located between the two limiting parts (11) during lap joint. The sunken part (23) comprises arc-shaped sunken plates (231) located on the two sides of the cross beam body (21) and connected with the cross beam body (21). The arc-shaped sunken plate (231) comprises a flush section and a sunken section, one side of the flush section and the sunken section is connected with the cross beam body (21), the flush section is flush with the cross beam body (21), the sunken section sunken towards the sunken direction of the sunken platform (12), the connection position of the sunken section and the flush section is curved excessively, and one side of the sunken section connected with the cross beam body (21) is curved. One end of the sunken section close to the lap joint part (22) is curved towards the lap joint part (22). The sunken depth of the sunken section of the arc-shaped sunken plate (231) relative to the lap joint part (22) is 6-15 mm. The height difference between the end of the sunken section close to the lap joint part (22) and the beam inner plate (3) connected with the side wall assembly (1) close to the inner side of the vehicle body in the vehicle height direction is 0-2 mm. The sunken section is connected with the cross beam body (21) and located at the connection position of the cross beam body (21) and the lap joint part (22), because the sunken section has a sunken structure, the height difference between the sunken section and the lap joint part (22) forms an L-shaped step, when the lap joint part (22) is lap jointed on the sunken platform (12), the step is abutted with the outer edge of the sunken platform (12), thereby the position of the cross beam (2) in the direction close to the side wall assembly (1) is defined.

2. The side sill cross beam lap joint structure according to claim 1, wherein The two arc-shaped sunken plates (231) are located between the two limiting parts (11) and are spaced apart from the limiting parts (11) by a first set distance.

3. The side sill cross-car beam lap joint structure of claim 1, wherein When the overlap part (22) is overlapped with the sunken platform (12), the overlapping area of the arc-shaped bending excess connection between the sunken section and the flush section and the limiting part (11) is in the length direction of the cross beam body (21).

4. The side sill cross-car beam lap joint structure of claim 1, wherein When the overlap part (22) is overlapped with the sunken platform (12), the top surface of the overlap part (22) is flush with the top surface of the side wall body (13).

5. The side sill cross-car beam lap joint structure of claim 1, wherein When the overlap part (22) is overlapped with the sunken platform (12), the plane where the cut edge outer contour of the arc-shaped sunken plate (231) is located is parallel to the cut edge side wall close to one side of the limiting part (11).

6. A vehicle characterized by comprising: The side wall cross beam overlap structure comprises the side wall cross beam overlap structure according to any one of claims 1-5.

Images