CN216301247U - A connection structure and car for car afterbody - Google Patents

Abstract

The utility model provides a connecting structure for an automobile tail and an automobile. The connecting structure comprises a tail lamp extension plate, the tail lamp extension plate comprises a first welding plate part, and a first extension flanging is formed on the edge of the first welding plate part; and the side wall outer plate comprises a side plate, a first flanging and a second flanging which are formed at a preset angle with the side plate and intersect with each other are arranged on the edge of the side plate, the first flanging and the second flanging form a sharp point at the intersection of the first flanging and the second flanging, at least one welding part is formed on the first flanging, one of the welding parts and the first welding plate part form a first welding spot fixedly connected with each other at the position close to the sharp point, and the first extending flanging and the inner side surface of the side plate form fastening connection through structural adhesive. Through the two-way connection formed by the welding connection and the structural adhesive connection between the tail lamp extension plate and the side wall outer plate, the connection firmness and the sealing reliability between the side wall outer plate and the tail lamp extension plate are enhanced.

Description

A connection structure and car for car afterbody

Technical Field

The utility model relates to the field of automobiles, and particularly provides a connecting structure for an automobile tail and an automobile.

Background

With the improvement of living standard, people pay more and more attention to the appearance of the automobile. The tail modeling of the automobile is the key point of automobile design and is also a difficult point. The automobile tail has various shapes, and the forming effect, the connection reliability, the coating sealing performance and the matching degree of assembly of the side wall outer plate and the tail lamp component need to be fully considered during design. In recent years, the line design of the tail part of the automobile is sharper and sharper, and the shape of the tail lamp is more and more narrow, so that the connection mode of the tail part of the automobile is restrained, the traditional connection mode of spot welding and sealant can not meet the new design requirement, and the connection reliability of the sharp point of the connection of the side wall outer plate and the tail lamp of the automobile is greatly influenced. For example, when the tail of the automobile is constructed in a duck tail shape, the bending at the sharp point is large, and the side wall of the side body outer plate is easy to wrinkle at the sharp point if the flanging is too long, so that the flanging needs to be designed to be short. At this moment, if the size of duck tail also designs for lessly, will lead to the part of cusp to receive very big restriction with the connected mode of tail lamp to the leakproofness and the connection reliability of cusp can not all be guaranteed, the easy emergence joint strip fracture, the connection scheduling problem that connects insecurely in the pointed point department of assembling process.

For this reason, a structure capable of improving the reliability of the connection of the rear portion of the automobile has been developed in the prior art. For example, chinese utility model patent application CN212921316U discloses a tail lamp panel sheet metal structure. The tail lamp plate sheet metal structure is composed of a side wall outer plate and a tail lamp plate. The first flanging at the upper part of the tail lamp plate is attached to the modeling surface of the side wall outer plate, structural glue is coated between the first flanging and the modeling surface of the side wall outer plate, the second flanging at the upper part of the tail lamp plate is attached to the upper flanging of the side wall outer plate, and cold metal transition welding is adopted between the first flanging and the upper flanging. The structure can improve the connection reliability of the tail part of the automobile to a certain extent, but has small constraint on the sharp point, and can not effectively improve the connection reliability and the sealing effect of the sharp point.

Accordingly, there is a need in the art for a new solution to the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a connecting structure for an automobile tail, aiming at solving the technical problem of poor connection and sealing reliability at a sharp point of the automobile tail. The connecting structure comprises a tail lamp extension plate, wherein the tail lamp extension plate comprises a first welding plate part, and a first extension flanging is formed on the edge of the first welding plate part; and the side wall outer plate comprises a side plate, a first flanging and a second flanging which are arranged on the edge of the side plate and form a preset angle with the side plate and are mutually intersected are arranged on the edge of the side plate, the first flanging and the second flanging form a sharp point at the intersection of the first flanging, at least one welding part is formed on the first flanging, one of the welding parts is close to the first welding plate part to form a first welding spot fixedly connected with the sharp point, and the first extending flanging and the inner side surface of the side plate form fastening connection through structural glue.

According to the utility model, the first welding point for forming fastening connection is established between the side wall outer plate and the tail lamp extension plate at the position close to the sharp point through the welding part formed on the first flanging of the side wall outer plate and the first welding plate part formed on the tail lamp extension plate, so that the first fixed connection between the side wall outer plate and the tail lamp extension plate is formed. Meanwhile, the first extending flanging and the inner side surface of the side panel are in fastening connection through structural adhesive, so that a second fixed connection between the side outer panel and the tail lamp extending plate is formed. Through the two connections, the attachment area between the side wall outer plate and the tail lamp extension plate near the sharp point is increased, and the connection firmness degree and the sealing reliability between the side wall outer plate and the tail lamp extension plate are enhanced. Further, the first solder joint that forms between welding part and the first welding plate portion is close to the sharp point for first solder joint can act on the sharp point more effectively, thereby effectively strengthens side wall planking and tail lamp extension board at the fastness of connection and the sealed effect of sharp point department.

In the above preferred technical solution of the connection structure for the vehicle tail portion, the vehicle tail portion is configured in a duck tail shape. Through the configuration, the connecting structure can be applied to the duck tail-shaped automobile tail, and the side wall outer plate and the tail lamp extension plate can be stably connected at the sharp point through the connecting structure, so that the cracking degree of the sealant at the sharp point is reduced.

In the above preferred technical solution of the connecting structure for the automobile tail, the first extending flange and the inner side surface of the side panel form a fastening connection near the sharp point. Through foretell configuration, the fastening connection region between first extension turn-ups and the side board is close to the cusp for fastening connection region can act on the cusp more effectively, thereby further strengthens side wall planking and tail lamp extension board at the fastness of connection and the sealing reliability of cusp department.

In the above preferred technical solution of the connection structure for the automobile tail, the tail lamp extension plate includes a second welded plate portion, and the side outer panel includes an upper panel connected to the side panel, the upper panel has a third flange connected to the first flange through the second flange, a welded edge is formed on the third flange, and the welded edge and the second welded plate portion form a second welding spot fixedly connected to each other near the sharp point. On the basis that the tail lamp extension plate and the side panel of the side wall outer plate form fastening connection, through the configuration, the tail lamp extension plate can form fastening connection with the upper panel of the side wall outer plate through the second welding plate part and the welding edge. The second welding spot is close to the sharp point, so that the second welding spot can effectively act on the sharp point, and the connection firmness and the sealing reliability of the side wall outer plate and the tail lamp extension plate at the sharp point are further enhanced. More importantly, because first solder joint is corresponding to the first turn-ups of side wall planking, the second solder joint is corresponding to the third turn-ups of side wall planking, consequently first solder joint and second solder joint distribute in the both sides of sharp point, and strengthen the fastness of being connected between side wall planking and the tail lamp extension board from the different sides of sharp point, and guarantee that the second turn-ups closely laminates on the tail lamp extension board, thereby effectively improve the fastness of being connected and the sealing reliability of sharp point department, make the connection structure of car afterbody obtain further optimization.

In the preferable technical scheme of the connection structure for the automobile tail, a second extending flanging is arranged on the edge of the second welding plate part, and the second extending flanging and the inner side surface of the upper panel are in fastening connection through structural glue at a position close to the sharp point. Through the configuration, the fastening connection area formed by the second extension flange and the inner side surface of the upper panel can increase the attachment area between the tail lamp extension plate and the side wall outer plate, so that the connection firmness degree and the sealing reliability between the tail lamp extension plate and the side wall outer plate are further enhanced. The fastening connection area is close to the sharp point, so that the fastening connection area can act on the sharp point more effectively, and the connection firmness and the sealing reliability of the side wall outer plate and the tail lamp extension plate at the sharp point are effectively enhanced.

In the above preferred technical solution of the connection structure for the tail portion of the automobile, a first connection portion is formed between the first flange and the second flange, and a second connection portion is formed between the second flange and the third flange, and the first connection portion and the second connection portion and the corresponding portion of the tail light extension board form a fine seal by a glue scraping process. Through foretell configuration, can make first turn-ups, second turn-ups and third turn-ups more succinct, smooth in appearance to frictioning technology can promote the sealed effect between side wall planking and the tail lamp extension board.

In the above-mentioned preferred technical solution of the connecting structure for the automobile tail, the widths of the first connecting portion and the second connecting portion extending outward from the side panel are both greater than or equal to 3mm and less than or equal to 5 mm. Through the configuration, the first connecting portion and the second connecting portion are kept in a small size, wrinkling during flanging forming can be effectively avoided, wrinkling risks are reduced, and meanwhile the size enables enough contact area to be formed between the side wall outer plate and the tail lamp extending plate, so that sealing effect is guaranteed.

In the above-described preferred embodiment of the connection structure for an automobile tail portion, the number of the welded portions is at least 2. Through the configuration, a plurality of welding points can be formed between the first flanging and the tail lamp extending plate, so that the connection firmness degree between the side wall outer plate and the tail lamp extending plate is enhanced.

In the above-described preferred embodiment of the connecting structure for the vehicle rear portion, the side panel has a flat surface portion extending obliquely in a predetermined direction toward the first flange, and a width of the flat surface portion in the predetermined direction is 15mm or more. Through foretell configuration, under the prerequisite of guaranteeing that side wall planking and tail lamp extension board have reliable connection, can make the automobile afterbody form sharper lines design to improve the molding aesthetic feeling of car.

The utility model further provides an automobile which comprises an automobile tail part, wherein the automobile tail part is provided with the connecting structure according to any one of the technical schemes. Through the configuration, the connection firmness of the connection structure at the tail part of the automobile can be ensured, and the sealing reliability at the sharp point is effectively improved.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of an embodiment of an automobile of the present invention;

FIG. 2 is a partial perspective view of an embodiment of the attachment structure for the rear portion of an automobile of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of the quarter outer panel extending to the rear of the automobile in the embodiment of the connecting structure for the rear of the automobile of the utility model;

FIG. 5 is a schematic structural view of a tail lamp extending plate in an embodiment of the connecting structure for the rear portion of the automobile according to the present invention;

FIG. 6 is a side view schematic diagram of an embodiment of the connecting structure for the rear portion of the automobile of the present invention;

fig. 7 is a schematic sectional view taken along line B-B in fig. 6.

List of reference numerals:

A. an automobile; a0, automobile tail light; a1, a top cover; a2, a chassis; 1. a side outer plate; 11. a side panel; 110. a sharp point; 111. a first flanging; 1110. welding the part; 112. second flanging; 11a, a first connection portion; 11b, a second connecting part; 12. an upper panel; 121. third flanging; 1210. welding edges; 113. a planar portion; 2. a tail light extension board; 20. tail lamp extension plate cusps; 21. a first welding plate portion; 210. an assembling portion; 211. a first extending flanging; 22. a second welding plate portion; 221. a connection fitting portion; 222. welding the assembly part; 223. second extending and flanging; 31. a first solder joint; 32. a second solder joint; 4. and (4) structural adhesive.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "assembled", "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The utility model provides a connecting structure for an automobile tail, aiming at solving the technical problems of poor connection firmness and poor sealing reliability at a sharp point of the automobile tail. The connection structure includes a tail lamp extension plate 2, the tail lamp extension plate 2 includes a first welded plate portion 21, and a first extension flange 211 is formed on an edge of the first welded plate portion 21; and the side wall outer plate 1, the side wall outer plate 1 comprises a side plate 11, a first flanging 111 and a second flanging 112 which form a preset angle with the side plate 11 and intersect with each other are arranged on the edge of the side plate 11, the first flanging 111 and the second flanging 112 form a sharp point 110 at the intersection of the three, at least one welding part 1110 is formed on the first flanging 111, a first welding point 31 fixedly connected with each other is formed at the position close to the sharp point 110 by one of the welding parts 1110 and the first welding plate part 21, and the first extending flanging 211 and the inner side surface of the side plate 11 form a fastening connection through structural adhesive 4.

The "tail lamp extending plate" mentioned above can also be understood as a tail lamp mounting plate, and the tail lamp extending plate is fastened to the side wall outer panel 11 to facilitate the stable mounting of the automobile tail lamp A0 at the tail of the automobile. Therefore, the connecting structure of the present invention can be applied to automobiles. The vehicle may be an electric vehicle or a fuel-powered vehicle, depending on the energy class used by the vehicle.

The utility model provides an automobile A. FIG. 1 is a schematic structural diagram of an embodiment of an automobile of the present invention. In one or more embodiments, the tail of the automobile A adopts a duck tail shape. Alternatively, the rear of the vehicle may be designed in other suitable configurations. As shown in fig. 1, the automobile a has a roof a1, a chassis a2, and quarter panels 1 distributed on the left and right sides of the automobile, the quarter panels 1 extend to the rear of the automobile, and the outer edges of the quarter panels 1 match the contour line of the automobile tail light a 0. The connecting structure of the utility model is adopted between the side wall outer plate 1 and the tail lamp extending plate 2 of the automobile tail lamp A0.

FIG. 2 is a perspective view of an embodiment of the connecting structure for the rear portion of an automobile according to the present invention; FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2; fig. 4 is a schematic structural view of the quarter outer panel extending to the vehicle rear portion in the embodiment of the connecting structure for the vehicle rear portion of the utility model. As shown in fig. 2 to 4, in one or more embodiments, the quarter outer panel 1 has a side panel 11 and an upper panel 12 connected to the side panel 11. In one or more embodiments, the side panel 11 and the upper panel 12 form a circular arc transition connection with a predetermined angle therebetween, and the side panel 11 and the upper panel 12 are integrally formed. As shown in fig. 1 and 2, in one or more embodiments, side panel 11 is positioned proximate above automobile tail light a0 and has its lower edge matching the contour of automobile tail light a 0. Alternatively, the edge of the side panel 11 partially or entirely surrounds the automobile tail light a0, and the edge matches the outer contour line of the automobile tail light a 0.

As shown in fig. 2, in one or more embodiments, a first flange 111 is formed at a first side edge of the side panel 11 that matches the outer contour of the tail lamp a 0. The first flange 111 forms a predetermined angle with the side panel 11. Further, an arc transition connection is formed between the first flange 111 and the side panel 11. In one or more embodiments, the predetermined angle is greater than 90 °. For example, the predetermined angle is 90 °, 100 °, or other suitable angle. As shown in fig. 4, in one or more embodiments, the side panel 11 has a flat portion 113 extending obliquely in a predetermined direction toward the first flange 111. In one or more embodiments, the width of the planar portion 113 in the predetermined direction is 15 mm. Alternatively, the width of the planar portion 113 in the predetermined direction may be any suitable dimension greater than 15mm, such as 16mm, 18mm, and the like. In one or more embodiments, a weld 1110 is formed on the first cuff 111. The number of the welding portions 1110 may be one, or two or more. In one or more embodiments, each weld 1110 is coplanar with the first cuff 111 and extends outwardly from the first cuff 111, e.g., in the shape of a tab. Alternatively, the welding portion 1110 and the first flange 111 may form an included angle therebetween.

In one or more embodiments, as shown in fig. 2 and 4, a second flange 112 is also formed at a second side edge of the side panel 11 that matches the outer contour of the tail lamp a 0. The second side edge intersects the first side edge. Further, an arc transition connection is formed between the second flange 112 and the side panel 11. In one or more embodiments, the second flange 12 and the side panel 11 form an arc transition connection and then extend outwards for a width of 5 mm. Alternatively, the second cuff 12 may extend outwardly a width of 4mm or other suitable dimension. The second flange 112 also forms a predetermined angle with the side panel 11. In one or more embodiments, the predetermined angle is greater than 90 °. For example, the predetermined angle is 90 °, 100 °, or other suitable angle. As shown in fig. 2 and 4, the side panel 11, the first flange 111, and the second flange 112 form a sharp point 110 where the three meet. Thus, the first and second cuffs 111 and 112 are located on either side of the sharp point 110. The peak 110 forms the peak of the duck tail when the tail of the vehicle is configured as a duck tail. In one or more embodiments, the second flange 112 and the first flange 111 intersect each other and form a first connection 11a at the intersection. In one or more embodiments, the first connection portion 11a is a section of a connection edge forming an arc transition. Alternatively, the first connection portion 11a is a right-angled hem or other suitable shape. In one or more embodiments, the sharp point 110 and the first connection portion 11a also form an arc-shaped transition connection therebetween. In one or more embodiments, the first connecting portion 11a forms an arc transition with the sharp point 110 and then extends outward for a width of 3 mm. Alternatively, the first connection portion 11a may extend outwardly by any suitable dimension greater than 3mm and less than or equal to 5 mm.

In one or more embodiments, as shown in fig. 2 and 4, a third cuff 121 is formed at one edge of the top panel 12. The third flange 121 and the upper panel 12 form a circular arc transition connection therebetween. In one or more embodiments, the third flange 121 forms an arc transition with the upper panel 12 and then extends outwardly for a width of 5 mm. Alternatively, the third cuff 121 may extend outwardly a width of 4mm or other suitable dimension. The third flange 121 forms a predetermined angle with the upper panel 12. In one or more embodiments, the predetermined angle is greater than 90 °. For example, the predetermined angle is 90 °, 100 °, or other suitable angle. As shown in FIG. 2, in one or more embodiments, the third cuff 121 and the second cuff 112 are located on the same side of the point 110 and are connected to the first cuff 111 by the second cuff 112. The intersection of the third flange 121 and the second flange 112 forms a second connecting portion 11 b. In one or more embodiments, the second connecting portion 11b is a connecting edge forming an arc transition. Alternatively, the second connecting portion 11b is a right-angled hem or other suitable shape. In one or more embodiments, the connection between the second connecting portion 11b and the side panel 11 and the top panel 12 also forms an arc transition connection. In one or more embodiments, the second connecting portion 11b extends outwardly by a width of 3mm after forming the arc-shaped transition connection. Alternatively, the second connecting portion 11b may extend outward by any suitable dimension greater than 3mm and less than or equal to 5mm to ensure that wrinkles are not easily generated during reshaping. In one or more embodiments, as shown in fig. 2 and 4, a welding edge 1210 is formed on the third cuff 121. In one or more embodiments, the welding edge 1210 is coplanar with the third cuff 121. Alternatively, the welding edge 1210 forms an angle with the third flange 121.

Fig. 5 is a schematic structural view of a tail lamp extending plate in an embodiment of the connection structure for the rear portion of the automobile according to the present invention. As shown in fig. 2 and 5, the tail lamp extension panel 2 includes a first welded panel portion 21 and a second welded panel portion 22 connected to the first welded panel portion 21, and the first welded panel portion 21 and the second welded panel portion 22 form a tail lamp extension panel peak 20 at the junction. Therefore, the first welded plate portion 21 and the second welded plate portion 22 are located on both sides of the tail lamp extension plate peak 20. In the connected state, the first welded plate portion 21 and the second welded plate portion 22 are also located on both sides of the sharp point 110, respectively, and the position of the first welded plate portion 21 corresponds to the position of the first burring 111 on the side panel 11.

As shown in fig. 5, in one or more embodiments, a fitting portion 210 corresponding to the welding portion 1110 is provided on the side wall of the first welding plate portion 21. In one or more embodiments, the mounting portion 210 is a concave mounting slot. Alternatively, the fitting portion 210 may have a snap structure or other suitable structure. In one or more embodiments, a first extended bead 211 is formed on an edge of the first welded plate portion 21. In one or more embodiments, the first extended bead 211 forms a predetermined angle with the first welded plate portion 21. Further, an arc transition connection is formed between the first extension flange 211 and the first welding plate portion 21. In one or more embodiments, the predetermined angle between the first extended cuff 211 and the first weld plate portion 21 matches the predetermined angle between the first cuff 111 and the side panel 11. In one or more embodiments, the predetermined angle between the first extended bead 211 and the first welded panel portion 21 is greater than 90 °. For example, the predetermined angle is 90 °, 100 °, or other suitable angle. In one or more embodiments, as shown in fig. 5, the first extended cuff 211 tapers in width along the outward extending direction and forms a generally trapezoidal or conical shape. Alternatively, the first extended cuff 211 may have other suitable shapes.

As shown in fig. 5, in one or more embodiments, the second weld plate portion 22 includes a connection fitting portion 221. In the connected state, the position of the connecting and assembling portion 221 corresponds to the position of the second flange 112 on the side panel 11 and the third flange 121 on the top panel 12. In one or more embodiments, a second extension flap 223 is formed on an edge of the connection fitting 221 corresponding to the third flap 121. In one or more embodiments, the second extension flap 223 forms a predetermined angle with the connection fitting 221. Further, the second extension flange 223 and the connection fitting portion 221 form a circular transition connection therebetween. In one or more embodiments, the predetermined angle between the second extension flap 223 and the connection fitting 221 matches the predetermined angle between the top panel 12 and the third flap 121. In one or more embodiments, the predetermined angle between the second extension flap 223 and the connection fitting 221 is greater than 90 °. For example, the predetermined angle is 90 °, 100 °, or other suitable angle. As shown in FIG. 5, in one or more embodiments, the second expanded cuff 223 tapers in width in the direction in which it extends outwardly and forms a generally trapezoidal or conical shape. Alternatively, the second extended cuff 223 may have other suitable shapes. In one or more embodiments, the second welded plate portion 22 further includes a welded fitting portion 222 connected to the connection fitting portion 221. As shown in fig. 4, in the coupled state, the position of the welding fitting portion 222 corresponds to the position of the welding edge 1210.

FIG. 6 is a side view schematic diagram of an embodiment of the connecting structure for the rear portion of the automobile of the present invention; fig. 7 is a schematic sectional view taken along line B-B in fig. 6. As shown in fig. 2 to 7, in one or more embodiments, in the fastened state of the quarter panel 1 and the tail lamp extension panel 2, the first flange 111 and the first welded panel portion 21 are overlapped and attached to each other, wherein the welded portion 1110 and the fitting portion 210 are opposite to each other, and the first connecting portion 11a and the tail lamp extension panel sharp point 20 are opposite to each other; the second flange 112, the second connecting portion 11b, the third flange 121 and the connecting assembly portion 221 are overlapped and attached to each other; the welding rim 1210 and the welding fitting 222 are opposite to each other. As shown in fig. 3, 6, and 7, the first burring 111 and the welded portion 1110 are respectively located outside the first welded plate portion 21; the first connection portion 11a is located outside the tip 20; the first connecting portion 11a, the second flange 112, the second connecting portion 11b and the third flange 121 are respectively located outside the connecting assembly portion 221; the welding rim 1210 is located outside the welding assembly 222. In one or more embodiments, a sealant is applied at the seam between the edge of both the first cuff 111 and the weld 1110 and the first weld panel portion 21. In one or more embodiments, the seam between the edge of the first connection 11a and the tail lamp extension plate sharp point 20 forms a fine seal by a taping process. Further, the seams between the edges of each of the second flange 112, the second connecting portion 11b, and the third flange 121 and the connecting fitting portion 221 are also respectively formed with fine seals by a glue scraping process. In one or more embodiments, a sealant is applied at the seam between the edge of the welding rim 1210 and the weld attachment 222.

In one or more embodiments, the welding portion 1110 and the assembling portion 210 are fixed together by a spot welding process using a special-shaped welding gun to form a first welding point 31 at the welding position; the welding edge 1210 and the welding assembly 222 are fixed together by a spot welding process by using a special-shaped welding gun to form a second welding point 32 at the welding position, so that a first connection between the side outer panel 1 and the tail lamp extension panel 2 is formed. In one or more embodiments, the first weld point 31 is brought as close as possible to the tip 110 when welding the welding portion 1110 to the mounting portion 210, and the second weld point 32 is brought as close as possible to the tip 110 when welding the welding edge 1210 to the welding mounting portion 222.

With continued reference to fig. 2-5, in one or more embodiments, the first extension flap 211 is attached to the inner side of the side panel 11 and forms a fastening connection therebetween by the structural adhesive 4, and the second extension flap 223 is attached to the inner side of the top panel 12 and forms a fastening connection therebetween by the structural adhesive 4. Thereby forming two connections between the side wall outer plate 1 and the tail lamp extension plate 2. In one or more embodiments, the first extended cuff 211 is positioned as close as possible to the point 110, such that the first extended cuff 211 forms a fastening connection with the inside face of the side panel 11 as close as possible to the point 110; the second extending flange 223 is disposed as close to the sharp point 110 as possible, so that the second extending flange 223 and the inner side surface of the upper panel 12 form a fastening connection as close to the sharp point 110 as possible, thereby enhancing the connection reliability between the first connection portion 11a and the tail lamp extending plate sharp point 20, and effectively reducing the cracking of the sealant between the first connection portion 11a and the tail lamp extending plate sharp point 20.

With continued reference to fig. 4 and 5, in one or more embodiments, the structural adhesive 4 between the first extended flap 211 and the inner side of the side panel 11 is distributed at the edge of the first extended flap 211. Optionally, the structural adhesive 4 extends from between the first extension flange 211 and the inner side surface of the side panel 11 to between the first flange 111 and the first welded plate portion 21, so as to further enhance the connection firmness between the side outer panel 1 and the tail light extension panel 2. In one or more embodiments, when the width of the planar portion 113 on the side panel 11 in the predetermined direction is 15mm or more than 15mm, the first extension flap 211 extends to the connection between the side panel 11 and the upper panel 12. Optionally, an additional flange is formed at the end of the first extension flange 211 to be attached to the upper panel 12, and structural glue is provided between the additional flange and the inner side of the upper panel 12. In one or more embodiments, the structural adhesive 4 between the second extension flange 223 and the inner side of the upper panel 12 extends from between the second extension flange 223 and the inner side of the upper panel 12 to between the welding edge 1210 and the welding assembly portion 222, so as to further enhance the connection firmness and the sealing reliability between the side outer panel 1 and the tail lamp extension panel 2.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the utility model, and the technical scheme after the changes or substitutions can fall into the protection scope of the utility model.

Claims (10)

1. A connecting structure for a rear portion of an automobile, characterized in that the connecting structure comprises:

a tail light extension plate including a first welded plate portion on an edge of which a first extension flange is formed; and

the side wall outer plate comprises a side plate, a first flanging and a second flanging which are arranged on the edge of the side plate and form a preset angle with the side plate, and are mutually intersected are arranged on the edge of the side plate, the first flanging and the second flanging form a sharp point at the intersection of the first flanging, at least one welding part is formed on the first flanging, one of the welding parts is close to the first welding plate part, the sharp point is formed to be fixedly connected with a first welding point, and the first extending flanging and the inner side face of the side plate form fastening connection through structural glue.

2. The connecting structure for an automobile tail portion according to claim 1, wherein the automobile tail portion is configured in a duck tail shape.

3. The connecting structure for the automobile tail according to claim 1, wherein the first extension flange forms a fastening connection with the inner side surface of the side panel near the pointed point.

4. The connecting structure for an automobile tail portion according to any one of claims 1 to 3, wherein the tail light extension panel includes a second weld plate portion, and the quarter panel includes an upper panel connected to the side panel, the upper panel having a third flange connected to the first flange by the second flange, a weld edge being formed on the third flange, the weld edge and the second weld plate portion forming a second weld spot fixedly connected to each other near the sharp point.

5. The connecting structure for the automobile tail part according to claim 4, wherein a second extending flange is arranged on the edge of the second welding plate part, and the second extending flange and the inner side surface of the upper panel are in fastening connection through structural adhesive at a position close to the sharp point.

6. The connecting structure for the automobile tail portion according to claim 4, wherein a first connecting portion is formed between the first flange and the second flange, and a second connecting portion is formed between the second flange and the third flange, and the first connecting portion and the second connecting portion form a fine seal with corresponding portions of the tail light extending plate by a glue scraping process, respectively.

7. The connecting structure for the automobile tail according to claim 6, wherein the first connecting portion and the second connecting portion each extend outwardly from the side panel by a width of 3mm or more and 5mm or less.

8. The connecting structure for an automobile tail portion according to claim 1, wherein the number of the welded portions is at least 2.

9. The connecting structure for the automobile tail according to claim 1, wherein the side panel has a flat surface portion extending obliquely in a predetermined direction toward the first flange, and a width of the flat surface portion in the predetermined direction is 15mm or more.

10. An automobile, characterized in that the automobile comprises an automobile tail portion having the connecting structure according to any one of claims 1 to 9.

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