Rear side member assembly, rear structure of vehicle body, and vehicle

Abstract

The embodiment of the application relates to the technical field of vehicle part manufacturing, and discloses a rear longitudinal beam assembly, a rear body structure and a vehicle. The rear longitudinal beam assembly comprises a rear longitudinal beam rear section, a first adapter and a first rear apron connecting plate, the material of the first adapter is different from that of the rear longitudinal beam rear section, the first adapter comprises a first body and a first flange, and the first flange is connected with the rear longitudinal beam rear section through a first fastener; the material of the first rear apron connecting plate is the same as that of the first adapter, a first side of the first rear apron connecting plate is welded with the first body, and a second side of the first rear apron connecting plate is used for being welded with a rear apron. The embodiment of the application realizes welding between the rear apron and the rear longitudinal beam rear section with different materials under the premise of meeting the lightweight requirement of the vehicle, guarantees that the rear apron has sufficient welding points, is favorable for reducing the risk of the rear apron falling in the vehicle assembly process, and guarantees the normal progress of vehicle assembly.

Description

Technical Field

[0001] This application relates to the field of vehicle component manufacturing technology, and in particular to a rear longitudinal beam assembly, a rear body structure, and a vehicle. Background Technology

[0002] The rear apron is a plate-like structural component installed at the rear of the vehicle body, serving functions such as protecting the chassis, optimizing aerodynamic performance, and enhancing aesthetics. During vehicle assembly, the rear apron is typically connected and secured to components such as the rear section of the rear longitudinal beam, the rear floor, and side panels.

[0003] With the development of vehicle manufacturing technology, many vehicles now use aluminum alloy rear longitudinal beams paired with aluminum alloy rear skirt connecting plates to meet weight reduction requirements. However, since the rear skirt is usually made of steel, the connecting plates and the rear skirt itself cannot be welded at the welding station due to their different materials. When transferred to subsequent workstations, the rear skirt is at risk of falling off due to the limited number of welding points, leading to misalignment and affecting subsequent assembly. Utility Model Content

[0004] In view of this, the present application provides a rear longitudinal beam assembly, a rear body structure, and a vehicle. The present application can achieve the welding of the rear skirt connecting plate and the rear skirt while meeting the vehicle lightweighting requirements, thereby reducing the risk of the rear skirt falling off during assembly and ensuring the normal assembly of the vehicle.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] This application provides a rear longitudinal beam assembly, including:

[0007] Rear section of the rear longitudinal beam;

[0008] The first adapter is made of a material different from that of the rear section of the rear longitudinal beam. The first adapter includes a first body and a first flange, and the first flange is connected to the rear section of the rear longitudinal beam by a first fastener.

[0009] The first rear skirt panel connecting plate is made of the same material as the first adapter. The first side of the first rear skirt panel connecting plate is welded to the first body, and the second side of the first rear skirt panel connecting plate is used for welding to the rear skirt panel.

[0010] This application embodiment sets up a first adapter and a first rear skirt connecting plate with a different material from the rear section of the rear longitudinal beam. The first adapter includes a first body and a first flange. The first adapter is connected to the rear section of the rear longitudinal beam using a first fastener. The first rear skirt connecting plate can be directly welded to the first body and the rear skirt. This achieves welding between the rear skirt and the rear section of the rear longitudinal beam with different materials while meeting the vehicle's lightweight requirements. It ensures that the rear skirt has sufficient welding points, which helps reduce the risk of the rear skirt falling off during vehicle assembly and ensures the normal progress of vehicle assembly.

[0011] In one possible implementation of this application, along the extension direction of the rear section of the rear longitudinal beam, an opening is provided at the end of the rear section of the rear longitudinal beam, and the first body covers the opening; in a plane perpendicular to the extension direction of the rear section of the rear longitudinal beam, the projection of the first body at least partially coincides with the projection of the opening, and the projection of the first body is located within the projection range of the first rear skirt connecting plate.

[0012] This embodiment of the application ensures that the projection of the first body and the projection of the opening at least partially coincide, and sets the projection of the first body within the projection range of the first rear skirt connecting plate, thereby ensuring that the first rear skirt connecting plate and the first body have sufficient welding area and that the first rear skirt connecting plate and the rear skirt have sufficient welding area, thereby reducing the risk of the rear skirt falling off.

[0013] In one possible implementation of this application, the first adapter is disposed inside the rear section of the rear longitudinal beam, and the first flange includes a first sub-flange, a second sub-flange, and a third sub-flange, which are respectively connected to different inner surfaces of the rear section of the rear longitudinal beam.

[0014] This embodiment of the application improves the connection strength between the first adapter and the rear section of the rear longitudinal beam by connecting the first sub-flange, the second sub-flange, and the third sub-flange to different inner surfaces of the rear section of the rear longitudinal beam. This enables the rear longitudinal beam assembly to withstand greater tensile force, facilitates the installation of components such as trailer hitches, and meets the towing requirements of vehicles.

[0015] In one possible implementation of this application, the first fastener includes bolts and / or rivets, and the first flange is connected to the rear section of the rear longitudinal beam by bolts and / or rivets.

[0016] In this embodiment, a first adapter of different materials is connected to the rear section of the rear longitudinal beam by bolts and / or rivets, which helps to improve the connection strength between the two, enabling the rear longitudinal beam assembly to withstand greater tensile force, facilitating the installation of components such as trailer hooks, and meeting the towing requirements of vehicles.

[0017] In one possible implementation of this application, a second adapter and a second rear skirt connecting plate are further included. The second rear skirt connecting plate includes a second body and a second flange. The second adapter is connected to the rear section of the rear longitudinal beam and the second flange by a second fastener. The second body is used to connect to the rear skirt by a third fastener.

[0018] This embodiment of the application, by providing a second adapter and a second rear skirt connecting plate, further enhances the connection strength of the rear longitudinal beam assembly through the connection between the second adapter and the rear section of the rear longitudinal beam. The second rear skirt connecting plate can also be connected to the rear skirt via a third fastener, thereby improving the connection strength between the rear longitudinal beam assembly and the rear skirt.

[0019] In one possible implementation of this application, the second body is provided with a positioning hole, and the positioning member passes through the positioning hole and is connected to the rear skirt plate.

[0020] In this embodiment, a positioning hole is provided on the second body. Before welding, a positioning element passes through the positioning hole and connects to the rear skirt plate, which helps to improve welding efficiency and ensure the accuracy of the welding point between the first rear skirt plate connecting plate and the rear skirt plate.

[0021] In one possible implementation of this application, the second adapter is disposed inside the rear section of the rear longitudinal beam. The second adapter includes a first section and a second section that are perpendicular to each other. The second main body includes a first part and a second part that are perpendicular to each other. The second flange includes a fourth sub-flange and a fifth sub-flange that are perpendicular to each other. The fourth sub-flange and the fifth sub-flange are respectively connected to the first part and the second part. The first section and the second section are respectively connected to the fourth sub-flange and the fifth sub-flange via the second fastener. The positioning hole is disposed on the first part. The second part is used to connect to the rear skirt plate via the third fastener.

[0022] In this embodiment, the first segment is connected to the fifth sub-flanged flange and the rear section of the rear longitudinal beam via a second fastener, and the second segment is connected to the fourth sub-flanged flange and the rear section of the rear longitudinal beam via a second fastener. This improves the connection points between the second adapter, the second rear skirt plate connecting plate, and the rear section of the rear longitudinal beam, thereby enhancing the connection strength of the three components. The first part is connected to the rear skirt plate via positioning holes, which helps ensure welding accuracy and improve welding efficiency. The second part is connected to the rear skirt plate via a third fastener, further enhancing the connection strength between the rear longitudinal beam assembly and the rear skirt plate.

[0023] In one possible implementation of this application, the first adapter, the first rear skirt connecting plate, the second adapter, and the second rear skirt connecting plate are all steel plates, and the rear section of the rear longitudinal beam is an aluminum alloy rear longitudinal beam.

[0024] In this embodiment, the first adapter, the first rear skirt connecting plate, the second adapter, and the second rear skirt connecting plate are all made of steel plates, and the rear section of the rear longitudinal beam is made of aluminum alloy. This satisfies the vehicle's lightweight requirements and allows the rear longitudinal beam assembly to be welded to the rear skirt, reducing the risk of the rear skirt falling off during vehicle assembly.

[0025] This application embodiment also provides a rear vehicle structure, including a rear skirt and a rear longitudinal beam assembly as described above, wherein the rear skirt is welded to a first rear skirt connecting plate of the rear longitudinal beam assembly.

[0026] Since the rear structure of the vehicle body in this embodiment adopts the aforementioned rear longitudinal beam assembly, it can be directly welded to the rear skirt panel through the first rear skirt panel connecting plate, which helps to reduce the risk of the rear skirt panel falling off during vehicle assembly and ensures the normal progress of vehicle assembly.

[0027] This application also provides a vehicle, including the rear body structure as described above.

[0028] Because the vehicle in this embodiment adopts the aforementioned rear body structure, the stability of the rear body structure can be guaranteed during vehicle assembly, reducing the risk of the rear skirt falling off and ensuring the normal progress of vehicle assembly. Attached Figure Description

[0029] Figure 1 A simplified structural diagram of the rear longitudinal beam assembly provided in the embodiments of this application from a first-view perspective;

[0030] Figure 2 A simplified structural diagram of the rear longitudinal beam assembly provided in the embodiments of this application from a second perspective;

[0031] Figure 3 A simplified structural diagram of the first adapter, the first rear skirt connecting plate, the second adapter, and the second rear skirt connecting plate provided in the embodiments of this application;

[0032] Figure 4 A simplified structural diagram of the rear structure of the vehicle body provided in the embodiments of this application.

[0033] Figure label:

[0034] 10-Rear skirt;

[0035] 100 - Rear section of the rear longitudinal beam;

[0036] 200 - First adapter; 210 - First body; 220 - First flange; 221 - First sub-flanged; 222 - Second sub-flanged; 223 - Third sub-flanged;

[0037] 300 - First rear skirt panel connecting plate;

[0038] 400 - Second adapter; 410 - First segment; 420 - Second segment;

[0039] 500 - Second rear skirt panel connecting plate; 510 - Second main body; 511 - First part; 5111 - Positioning hole; 512 - Second part; 520 - Second flange; 521 - Fourth sub-flange; 522 - Fifth sub-flange;

[0040] 610 - First fastener; 620 - Second fastener; 630 - Third fastener; 640 - Positioning component. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0042] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0043] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0044] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0045] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0046] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0047] As described in the background section, in the related technical solutions, the aluminum alloy rear skirt connecting plate and the steel rear skirt cannot be welded at the welding station due to their different materials. This forces the rear skirt to be welded only to the rear floor, side plates, and other locations. When transferred to subsequent work stations, the rear skirt is at risk of falling off due to the limited number of welding points, leading to misalignment of the rear skirt connection and affecting the normal progress of subsequent assembly.

[0048] In view of this, the embodiments of this application aim to provide a rear longitudinal beam assembly, a rear body structure, and a vehicle. By setting a first adapter and a first rear skirt connecting plate made of a different material from the rear section of the rear longitudinal beam, the first adapter includes a first body and a first flange. The first adapter is connected to the rear section of the rear longitudinal beam using a first fastener. The first rear skirt connecting plate can be directly welded to the first body and the rear skirt. This achieves welding between the rear skirt and the rear section of the rear longitudinal beam made of different materials while meeting the vehicle's lightweight requirements. It ensures that the rear skirt has sufficient welding points, which helps to reduce the risk of the rear skirt falling off during vehicle assembly and ensures the normal progress of vehicle assembly.

[0049] The embodiments of this application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0050] This application provides a rear longitudinal beam assembly for assembly with a rear apron. It should be noted that the vehicle in this application can refer to a large vehicle, a small vehicle, a special-purpose vehicle, etc. For example, according to vehicle type, the vehicle in this application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other types of vehicles. Vehicles generally have wheels and a body, with a rear apron at the rear of the body. The rear apron is typically connected and fixed to components such as the rear section of the rear longitudinal beam, the rear floor, and side panels.

[0051] Please refer to Figures 1-3 This application provides a rear longitudinal beam assembly, including:

[0052] The rear section 100 of the rear longitudinal beam is generally prism-shaped with a rectangular cross-section. The rear section 100 of the rear longitudinal beam can be made of lightweight and high-strength metal or alloy materials.

[0053] A first adapter 200 is made of a different material than the rear longitudinal beam rear section 100. For example, the first adapter 200 may be made of the same metal as the rear skirt. The first adapter 200 includes a first body 210 and a first flange 220, which is connected to the rear longitudinal beam rear section 100 via a first fastener 610. For example, the first body 210 and the first flange 220 may be integrally formed, with the first body 210 perpendicular to the first flange 220. The first flange 220 is connected to at least one surface of the rear longitudinal beam rear section via the first fastener 610, thereby achieving connection and fixation between parts of different materials. The first body 210 is generally perpendicular to the extending direction of the rear longitudinal beam rear section 100.

[0054] The first rear apron connecting plate 300 is made of the same material as the first adapter 200; exemplarily, the first rear apron connecting plate 300 can also be made of the same metal as the rear apron. The first side of the first rear apron connecting plate 300 is welded to the first body 210, and the second side of the first rear apron connecting plate 300 is used for welding to the rear apron. Since the first adapter 200, the first rear apron connecting plate 300, and the rear apron are all made of the same material, they can be directly welded together at the welding station to reduce the risk of the rear apron falling off during vehicle assembly and ensure the normal progress of vehicle assembly. The first side of the first rear apron connecting plate 300 can be spot-welded to the first body 210, and the first rear apron connecting plate 300 can be spot-welded to the rear apron.

[0055] This embodiment of the application sets up a first adapter 200 and a first rear skirt connecting plate 300, which are made of different materials than the rear section 100 of the rear longitudinal beam. The first adapter 200 includes a first body 210 and a first flange 220. The first adapter 200 is connected to the rear section 100 of the rear longitudinal beam using a first fastener 610. The first rear skirt connecting plate 300 can be directly welded to the first body 210 and the rear skirt. This achieves welding between the rear skirt and the rear section 100 of the rear longitudinal beam with different materials while meeting the vehicle's lightweight requirements. It ensures that the rear skirt has sufficient welding points, which helps to reduce the risk of the rear skirt falling off during vehicle assembly and ensures the normal progress of vehicle assembly.

[0056] Please continue to refer to Figures 1-3Along the extension direction of the rear longitudinal beam rear section 100, an opening is provided at the end of the rear longitudinal beam rear section 100, and the first body 210 covers the opening, thereby partially obscuring the opening. In a plane perpendicular to the extension direction of the rear longitudinal beam rear section 100, the projection of the first body 210 at least partially coincides with the projection of the opening, and the projection of the first body 210 is located within the projection range of the first rear skirt plate connecting plate 300. Exemplarily, in this embodiment, the projection of the first body 210 can occupy 75%-85% of the projection of the opening, and the projection of the first rear skirt plate connecting plate 300 can be larger than the projection of the first body 210 and the projection of the opening, so that the rear longitudinal beam rear section is completely covered by the first rear skirt plate connecting plate 300 to ensure sufficient welding area when welding with the rear skirt plate.

[0057] In this embodiment, the projection of the first body 210 at least partially overlaps with the projection of the opening, and the projection of the first body 210 is set within the projection range of the first rear skirt connecting plate 300. This ensures that the first rear skirt connecting plate 300 and the first body 210 have sufficient welding area, and also ensures that the first rear skirt connecting plate 300 and the rear skirt have sufficient welding area, thereby reducing the risk of the rear skirt falling off.

[0058] Please continue to refer to Figure 1 and Figure 3 In this embodiment, the first adapter 200 is disposed inside the rear section 100 of the rear longitudinal beam. The first flange 220 includes a first sub-flange 221, a second sub-flange 222, and a third sub-flange 223, which are respectively connected to different inner surfaces of the rear section 100 of the rear longitudinal beam. For example, the first sub-flange 221, the second sub-flange 222, and the third sub-flange 223 can be connected to the inner surfaces of the two side walls and the top wall of the rear section 100 of the rear longitudinal beam, thereby increasing the connection point between the first adapter 200 and the rear section 100 of the rear longitudinal beam and improving their connection strength.

[0059] In this embodiment, the first sub-flanged flange 221, the second sub-flanged flange 222, and the third sub-flanged flange 223 are respectively connected to different inner surfaces of the rear section 100 of the rear longitudinal beam, thereby improving the connection strength between the first adapter 200 and the rear section 100 of the rear longitudinal beam. This enables the rear longitudinal beam assembly to withstand greater tensile force, facilitating the installation of components such as trailer hitches, and meeting the towing requirements of vehicles.

[0060] In this embodiment, the first fastener 610 includes bolts and / or rivets, and the first flange 220 is connected to the rear section 100 of the rear longitudinal beam by bolts and / or rivets. Exemplarily, the choice between bolts and rivets for the first fastener 610 can be based on the assembly space; when the assembly space is sufficient, bolts can be used for connection, while when the assembly space is limited, rivets can be used. When bolt connection is used, a projection nut can be pre-welded onto the first flange 220 to facilitate subsequent connection and fixation.

[0061] In this embodiment, the first adapter 200, made of a different material, is connected to the rear section 100 of the rear longitudinal beam by bolts and / or rivets, which helps to improve the connection strength between the two, enabling the rear longitudinal beam assembly to withstand greater tensile force, facilitating the installation of components such as trailer hooks, and meeting the towing requirements of the vehicle.

[0062] Please continue to refer to Figure 2 and Figure 3 The embodiments of this application also include a second adapter 400 and a second rear skirt connecting plate 500. The second rear skirt connecting plate 500 includes a second body 510 and a second flange 520. The second adapter 400 is connected to the rear section 100 of the rear longitudinal beam and the second flange 520 through a second fastener 620. The second body 510 is used to connect to the rear skirt through a third fastener 630.

[0063] This embodiment of the application, by providing a second adapter 400 and a second rear skirt connecting plate 500, further enhances the connection strength of the rear longitudinal beam assembly through the connection between the second adapter 400 and the rear section 100 of the rear longitudinal beam. The second rear skirt connecting plate 500 can also be connected to the rear skirt through a third fastener 630, thereby improving the connection strength between the rear longitudinal beam assembly and the rear skirt.

[0064] Furthermore, the second main body 510 of this application embodiment is provided with a positioning hole 5111, and the positioning member 640 passes through the positioning hole 5111 and is connected to the rear skirt plate. For example, the positioning member 640 can be a screw, and the rear skirt plate can be provided with corresponding mounting holes. When assembling the rear longitudinal beam assembly with the rear skirt plate, the screw can first pass through the positioning hole 5111 and the mounting hole to pre-position the rear longitudinal beam assembly with the rear skirt plate, ensuring the smooth progress of subsequent welding and fastener connection.

[0065] In this embodiment, a positioning hole 5111 is provided on the second body 510. Before welding, the positioning member 640 passes through the positioning hole 5111 and connects with the rear skirt plate, which helps to improve the welding efficiency and ensure the accuracy of the welding point between the first rear skirt plate connecting plate 300 and the rear skirt plate.

[0066] Specifically, in this embodiment, the second adapter 400 is disposed inside the rear section 100 of the rear longitudinal beam. The second adapter 400 includes a first section 410 and a second section 420 that are perpendicular to each other. The second main body 510 includes a first part 511 and a second part 512 that are perpendicular to each other. The second flange 520 includes a fourth sub-flange 521 and a fifth sub-flange 522 that are perpendicular to each other. The fourth sub-flange 521 and the fifth sub-flange 522 are respectively connected to the first part 511 and the second part 512; for example, the fourth sub-flange 521 and the fifth sub-flange 522 can be integrally formed to the first part 511 and the second part 512, respectively. The first section 410 and the second section 420 are respectively connected to the fourth sub-flange 521 and the fifth sub-flange 522 by a second fastener 620; the second fastener 620 can be, for example, a bolt and / or a rivet, which can be selected based on the assembly space. A positioning hole 5111 is provided on the first part 511. The second part 512 is used to connect to the rear skirt via a third fastener 630, which may include, for example, a projection weld nut provided on the second part 512, thereby facilitating connection and fixation to the rear skirt via bolts.

[0067] In this embodiment, the first segment 410 is connected to the fifth sub-flanged flange 522 and the rear longitudinal beam rear segment 100 via the second fastener 620. The second segment 420 is connected to the fourth sub-flanged flange 521 and the rear longitudinal beam rear segment 100 via the second fastener 620, thereby increasing the connection points between the second adapter 400 and the second rear skirt plate connecting plate 500 and the rear longitudinal beam rear segment 100, which is beneficial to improving the connection strength of the three. The first part 511 is connected to the rear skirt plate via the positioning hole 5111, which helps to ensure welding accuracy and improve welding efficiency. The second part 512 is connected to the rear skirt plate via the third fastener 630, which further enhances the connection strength between the rear longitudinal beam assembly and the rear skirt plate.

[0068] In this embodiment of the application, the first adapter 200, the first rear skirt plate connecting plate 300, the second adapter 400, and the second rear skirt plate connecting plate 500 are all steel plates, and the rear longitudinal beam rear section 100 is an aluminum alloy rear longitudinal beam rear section.

[0069] In this embodiment, the first adapter 200, the first rear skirt connecting plate 300, the second adapter 400, and the second rear skirt connecting plate 500 are all made of steel plates, and the rear longitudinal beam rear section 100 is made of aluminum alloy. This satisfies the vehicle's lightweight requirements and allows the rear longitudinal beam assembly to be welded to the rear skirt, reducing the risk of the rear skirt falling off during vehicle assembly.

[0070] Please refer to Figure 4This application embodiment also provides a rear vehicle structure, including a rear skirt 10 and the aforementioned rear longitudinal beam assembly, wherein the rear skirt 10 is welded to the first rear skirt connecting plate 300 of the rear longitudinal beam assembly.

[0071] For example, the rear skirt 10 can be spot welded to the first rear skirt connecting plate 300 to ensure that the rear skirt 10 has sufficient welding points, which helps to reduce the risk of the rear skirt 10 falling off during vehicle assembly and ensures the normal progress of vehicle assembly.

[0072] This application also provides a vehicle including the aforementioned rear body structure.

[0073] Because the vehicle in this embodiment adopts the aforementioned rear body structure, the stability of the rear body structure can be guaranteed during vehicle assembly, reducing the risk of the rear skirt falling off and ensuring the normal progress of vehicle assembly.

[0074] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A rear longitudinal beam assembly, characterized in that, include: Rear section of the rear longitudinal beam (100); The first adapter (200) is made of a material different from that of the rear section (100) of the rear longitudinal beam. The first adapter (200) includes a first body (210) and a first flange (220). The first flange (220) is connected to the rear section (100) of the rear longitudinal beam by a first fastener (610). The first rear skirt panel connecting plate (300) is made of the same material as the first adapter (200). The first side of the first rear skirt panel connecting plate (300) is welded to the first body (210), and the second side of the first rear skirt panel connecting plate (300) is used for welding to the rear skirt panel.

2. The rear longitudinal beam assembly according to claim 1, characterized in that, Along the extension direction of the rear longitudinal beam (100), the end of the rear longitudinal beam (100) is provided with an opening, and the first body (210) covers the opening; in a plane perpendicular to the extension direction of the rear longitudinal beam (100), the projection of the first body (210) and the projection of the opening at least partially coincide, and the projection of the first body (210) is located within the projection range of the first rear skirt connecting plate (300).

3. The rear longitudinal beam assembly according to claim 2, characterized in that, The first adapter (200) is disposed inside the rear section (100) of the rear longitudinal beam. The first flange (220) includes a first sub-flange (221), a second sub-flange (222) and a third sub-flange (223). The first sub-flange (221), the second sub-flange (222) and the third sub-flange (223) are respectively connected to different inner surfaces of the rear section (100) of the rear longitudinal beam.

4. The rear longitudinal beam assembly according to claim 3, characterized in that, The first fastener (610) includes bolts and / or rivets, and the first flange (220) is connected to the rear section (100) of the rear longitudinal beam by bolts and / or rivets.

5. The rear longitudinal beam assembly according to claim 3, characterized in that, It also includes a second adapter (400) and a second rear skirt connecting plate (500). The second rear skirt connecting plate (500) includes a second body (510) and a second flange (520). The second adapter (400) is connected to the rear section (100) of the rear longitudinal beam and the second flange (520) by a second fastener (620). The second body (510) is used to connect to the rear skirt by a third fastener (630).

6. The rear longitudinal beam assembly according to claim 5, characterized in that, The second main body (510) is provided with a positioning hole (5111), and the positioning member (640) passes through the positioning hole (5111) and is connected to the rear skirt plate.

7. The rear longitudinal beam assembly according to claim 6, characterized in that, The second adapter (400) is disposed inside the rear section (100) of the rear longitudinal beam. The second adapter (400) includes a first section (410) and a second section (420) that are perpendicular to each other. The second main body (510) includes a first part (511) and a second part (512) that are perpendicular to each other. The second flange (520) includes a fourth sub-flange (521) and a fifth sub-flange (522) that are perpendicular to each other. The fourth sub-flange (521) and the fifth sub-flange (522) are respectively connected to the first part (511) and the second part (512). The first section (410) and the second section (420) are respectively connected to the fourth sub-flange (521) and the fifth sub-flange (522) through the second fastener (620). The positioning hole (5111) is disposed on the first part (511). The second part (512) is used to connect to the rear skirt plate through the third fastener (630).

8. The rear longitudinal beam assembly according to claim 5, characterized in that, The first adapter (200), the first rear skirt connecting plate (300), the second adapter (400), and the second rear skirt connecting plate (500) are all steel plates, and the rear longitudinal beam rear section (100) is an aluminum alloy rear longitudinal beam rear section.

9. A rear structure of a vehicle body, characterized in that, Includes a rear skirt (10) and a rear longitudinal beam assembly as described in any one of claims 1-8, wherein the rear skirt (10) is welded to a first rear skirt connecting plate (300) of the rear longitudinal beam assembly.

10. A vehicle, characterized in that, Includes the rear body structure as described in claim 9.

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