A rear longitudinal beam rear section assembly and vehicle

Abstract

This application relates to the field of vehicle component manufacturing technology, and discloses a rear longitudinal beam rear section assembly and a vehicle. The rear longitudinal beam rear section assembly includes a rear longitudinal beam rear section, a rear floor side plate, and a support plate. The rear longitudinal beam rear section includes a top wall and a first side wall; one end of the rear floor side plate is connected to the top wall; the support plate includes a first support plate and a second support plate, the second support plate being connected to one end of the first support plate and inclined relative to the first support plate; the first support plate is connected to the rear floor side plate, and the second support plate is connected to the first side wall. This application embodiment improves the connection strength between the rear floor side plate and the rear longitudinal beam rear section, reduces the probability of the rear floor side plate warping or sagging after connection with the rear longitudinal beam rear section, thereby improving the welding strength of the rear floor side plate to other parts and ensuring better vehicle safety performance.

Description

Technical Field

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

[0002] The rear longitudinal beam section is a key component of the vehicle's rear longitudinal beam system. Located at the rear of the vehicle, it typically forms a complete rear longitudinal beam structure together with the front longitudinal beam section. The functions of the rear longitudinal beam section include: enhancing vehicle body rigidity, supporting major components, and absorbing collision energy. In related technical solutions, the rear longitudinal beam section assembly includes the rear longitudinal beam section and the rear floor side panel. The rear floor side panel is welded to the rear longitudinal beam section and then assembled with the side panel to form the rear structure of the vehicle.

[0003] However, in the current technical solutions, the connection between the rear longitudinal beam and the rear floor side panel typically involves attaching one end of the rear floor side panel to the top of the rear longitudinal beam. After connection, the other end of the rear floor side panel lacks support, making it prone to tilting or sagging in the vehicle's height direction. This affects the welding strength between the rear floor side panel and other components, thus impacting the vehicle's safety performance. Utility Model Content

[0004] In view of this, the present application provides a rear longitudinal beam rear section assembly and a vehicle. This application helps to reduce the probability of the rear floor side plate tilting or sagging after it is connected to the rear longitudinal beam rear section, and improves the welding strength of the rear floor side plate to other parts, thereby ensuring that the vehicle has better safety performance.

[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 rear section assembly, including:

[0007] The rear section of the rear longitudinal beam includes a top wall and a first side wall;

[0008] Rear floor side panel, one end of which is connected to the top wall;

[0009] The support plate includes a first support plate and a second support plate, the second support plate being connected to one end of the first support plate and inclined relative to the first support plate; the first support plate is connected to the rear floor side plate, and the second support plate is connected to the first side wall.

[0010] This embodiment of the application provides a support plate below the rear floor side panel. The support plate includes a first support plate and a second support plate, with the second support plate inclined to the first support plate. The first support plate connects to the rear floor side panel, and the second support plate connects to the rear section of the rear longitudinal beam. This improves the connection strength between the rear floor side panel and the rear section of the rear longitudinal beam, reduces the probability of the rear floor side panel warping or sagging after connection, and improves the welding strength of the rear floor side panel to other parts, ensuring better vehicle safety performance.

[0011] In one possible implementation of this application, the first support plate is welded to the rear floor side plate;

[0012] The second support plate is provided with a plurality of first fixing holes, and the first side wall is provided with a plurality of first through holes. The plurality of first fixing holes correspond one-to-one with the plurality of first through holes. The first fastener passes through the first through hole and connects to the corresponding first fixing hole.

[0013] In this embodiment, the first support plate is connected to the rear floor side plate by welding, which improves the connection strength and overall structural integrity. The first fastener in this embodiment can be, for example, a blind rivet; the rear section of the rear longitudinal beam can be made of aluminum alloy; and the second support plate can be made of steel. Connecting the second support plate to the first side wall using blind rivets allows for the connection between different metal materials, ensuring reliable connection strength and meeting vehicle safety requirements.

[0014] In one possible implementation of this application, a battery tray is also included, the battery tray being disposed on the side of the rear floor panel opposite to the first support plate;

[0015] The first support plate is provided with a plurality of second fixing holes, the rear floor side plate is provided with a plurality of second through holes, and the battery tray is provided with a plurality of third through holes. The plurality of second fixing holes, the plurality of second through holes and the plurality of third through holes correspond one-to-one. The second fastener passes through the second through hole and the corresponding third through hole in sequence and then connects to the corresponding second fixing hole.

[0016] This embodiment of the application provides a foundation for battery installation by setting a battery tray above the rear floor side panel, facilitating the installation of the vehicle's battery at the rear of the vehicle and reducing the risk of power loss after a collision. The second fastener in this embodiment can be a screw, bolt, etc., and the battery tray is detachably connected to the first support plate and the rear floor side panel via the second fastener, thereby facilitating subsequent installation and maintenance disassembly.

[0017] In one possible implementation of this application, the rear section of the rear longitudinal beam extends along a first direction, and one end of the rear floor side plate along a second direction is connected to the top wall;

[0018] Along the first direction, one end of the first support plate is also provided with a side panel connector, which is used to connect with the side panel of the vehicle;

[0019] Wherein, the first direction and the second direction are perpendicular to each other.

[0020] In this embodiment, a side panel connector is provided at one end of the rear floor panel along a first direction, thereby connecting it to the side panel of the vehicle and preventing the side panel from falling off.

[0021] In one possible implementation of this application, the side panel connector includes a first panel, a second panel, and a third panel. Along the first direction, a first end of the first panel is connected to the first support plate. The second panel is disposed at a second end of the first panel and is inclined relative to the first panel. The third panel is disposed at an end of the second panel away from the first panel and is inclined relative to the second panel.

[0022] Before being connected to the side panel, the first, second, and third panels of this application embodiment have a generally "Z" shaped cross-section, wherein the third panel can be bent under the action of external force. When connecting the side panel, the third panel can be bent towards the first panel, so that the first, second, and third panels form a "U" shaped structure, thereby covering the side panel and preventing it from falling off.

[0023] In one possible implementation of this application, the side panel connector further includes a side panel welding plate, which is connected to the second panel, and the side panel welding plate is provided with welding holes for welding to the side panel of the vehicle.

[0024] This application embodiment provides a side panel welding plate, which is welded to the side wall of the side panel using welding holes. This further enhances the connection strength with the vehicle side panel and prevents the side panel from falling off.

[0025] In one possible implementation of this application, the rear section of the rear longitudinal beam further includes a bottom wall and a second side wall. The top wall, the first side wall, the bottom wall, and the second side wall are connected end to end in sequence. A cavity is formed in the rear section of the rear longitudinal beam. A first reinforcing plate is provided in the cavity. The first reinforcing plate is arranged parallel to the top wall.

[0026] The cavity is also provided with a reinforcing member, which is located between the first reinforcing plate and the bottom wall. The reinforcing member includes a second reinforcing plate and a third reinforcing plate. The second reinforcing plate is connected to the bottom wall, and the third reinforcing plate is connected to the first side wall.

[0027] The embodiments of this application improve the overall strength of the rear section of the rear longitudinal beam by providing a first reinforcing plate and a reinforcing member in the rear section of the rear longitudinal beam.

[0028] In one possible implementation of this application, along the first direction, the length of the third reinforcing plate is less than the length of the second reinforcing plate, and a gap is formed between the third reinforcing plate and the end of the rear section of the rear longitudinal beam;

[0029] The second reinforcing plate is provided with an exhaust system mounting hole, the third reinforcing plate is provided with a first process hanging hole, and the first side wall is provided with a second process hanging hole.

[0030] In this embodiment, the length of the third reinforcing plate is set to be less than that of the second reinforcing plate, and a gap is formed between the third reinforcing plate and the end of the rear longitudinal beam. This allows the rear longitudinal beam to be divided into a "soft zone" (i.e., the area without the third reinforcing plate) and a "hard zone" (i.e., the area with the third reinforcing plate). The "soft zone" is responsible for deforming and absorbing energy during a rear-end collision, while the "hard zone" is responsible for preventing deformation and preventing the battery from losing power to the entire vehicle due to a rear-end collision.

[0031] This embodiment of the application provides an exhaust system mounting hole on the second reinforcing plate, which facilitates connection to the vehicle's exhaust system. By providing corresponding first and second process mounting holes on the third reinforcing plate and the first side wall, the vehicle can be fixed to the ground by means of a chain or other device, preventing the vehicle body from being lifted up when the chassis rear suspension is raised, thus preventing the rear suspension from failing to install.

[0032] In one possible implementation of this application, a rear skirt connecting plate is also included. Along the first direction, the rear skirt connecting plate is located at the end of the rear section of the rear longitudinal beam, and the rear skirt connecting plate is provided with a rear anti-collision beam mounting hole.

[0033] This embodiment of the application provides a rear skirt connecting plate at the end of the rear section of the rear longitudinal beam, thereby enabling the rear anti-collision beam mounting holes on the rear skirt connecting plate to connect with the vehicle's rear anti-collision beam, thus improving the vehicle's assembly efficiency.

[0034] This application also provides a vehicle including the rear longitudinal beam rear section assembly as described above.

[0035] The vehicle in this embodiment of the application uses the aforementioned rear longitudinal beam assembly, which improves the connection strength between the rear floor side panel and the rear longitudinal beam, reduces the probability of the rear floor side panel tilting or sagging after being connected to the rear longitudinal beam, thereby improving the welding strength of the rear floor side panel to other parts and ensuring that the vehicle has better safety performance. Attached Figure Description

[0036] Figure 1 A simplified structural diagram of the rear longitudinal beam assembly provided in the embodiments of this application from a first-view perspective;

[0037] Figure 2 A simplified structural diagram of the rear longitudinal beam assembly provided in the embodiments of this application from a second perspective;

[0038] Figure 3 A simplified structural diagram of the rear longitudinal beam assembly provided in the embodiments of this application from a third-person perspective;

[0039] Figure 4 An exploded view of the rear section assembly of the rear longitudinal beam provided in an embodiment of this application;

[0040] Figure 5 An assembly diagram of the rear section of the rear longitudinal beam and the third reinforcing plate provided for an embodiment of this application;

[0041] Figure 6 A simplified structural diagram of the reinforcing member provided in the embodiments of this application;

[0042] Figure 7 A simplified diagram of the connection structure of the rear longitudinal beam assembly provided in another embodiment of this application.

[0043] Figure label:

[0044] 100 - Rear section of rear longitudinal beam; 110 - Top wall; 120 - First side wall; 121 - First through hole; 122 - Second process hanging hole; 123 - Fourth fixing hole; 124 - Sixth through hole; 130 - Bottom wall; 140 - Second side wall; 150 - First reinforcing plate; 160 - Reinforcing member; 161 - Second reinforcing plate; 1611 - Exhaust system mounting hole; 1612 - Fourth through hole; 162 - Third reinforcing plate; 1621 - First process hanging hole; 1622 - Fifth through hole; 1623 - Bumper bracket mounting hole;

[0045] 200 - Rear floor edge plate; 210 - Second through hole;

[0046] 300-Support plate; 310-First support plate; 311-Second fixing hole; 320-Second support plate; 321-First fixing hole; 330-Side panel connector; 331-First panel; 332-Second panel; 333-Third panel; 334-Side panel welding plate; 3341-Welding hole;

[0047] 410 - First fastener; 420 - Second fastener; 430 - Nut; 440 - Third fastener;

[0048] 500-Battery Tray;

[0049] 600 - Rear skirt panel connecting plate; 610 - Rear bumper beam mounting hole;

[0050] X - First direction; Y - Second direction; Z - Third direction. Detailed Implementation

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] As described in the background section, in related technologies, the connection between the rear section of the rear longitudinal beam and the rear floor side panel typically involves connecting one end of the rear floor side panel to the top of the rear section of the rear longitudinal beam. After connection, the other end of the rear floor side panel lacks support, resulting in a cantilever beam structure between the rear floor side panel and the rear section of the rear longitudinal beam. This makes the end of the rear floor side panel furthest from the rear section of the rear longitudinal beam prone to tilting upwards or downwards in the vehicle height direction, affecting the welding strength of the rear floor side panel to other components and thus impacting the vehicle's safety performance.

[0058] In view of this, the present application aims to provide a rear longitudinal beam rear section assembly and a vehicle. By providing a support plate below the rear floor side plate, the support plate includes a first support plate and a second support plate. The second support plate is inclined to the first support plate. The first support plate is used to connect the rear floor side plate, and the second support plate is used to connect the rear longitudinal beam rear section. This improves the connection strength between the rear floor side plate and the rear longitudinal beam rear section, reduces the probability of the rear floor side plate tilting or sagging after connecting with the rear longitudinal beam rear section, and improves the welding strength of the rear floor side plate to other parts, ensuring that the vehicle has better safety performance.

[0059] 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. It should be noted that, in the description of the embodiments of this application, the first direction X, the second direction Y, and the third direction Z are three different directions in three-dimensional space. The first direction X, the second direction Y, and the third direction Z can be perpendicular to each other, for example. The first direction X can be, for example, the length direction of the vehicle, the second direction Y can be, for example, the width direction of the vehicle, and the third direction Z can be, for example, the height direction of the vehicle.

[0060] This application provides a rear longitudinal beam rear section assembly to improve vehicle safety performance. It should be noted that the vehicle in this application can refer to large vehicles, small vehicles, special-purpose vehicles, 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. The rear structure of the body includes the rear longitudinal beam rear section assembly, which connects the vehicle floor and the side panels, thereby enhancing body rigidity, absorbing collision energy, and improving driving safety.

[0061] Please refer to Figures 1-7 This application provides a rear longitudinal beam rear section assembly, including:

[0062] The rear section 100 of the rear longitudinal beam extends generally along a first direction X, and its cross-section (referring to the cross-section in a plane perpendicular to the first direction X) is generally rectangular. The rear section 100 includes a top wall 110, a first side wall 120, a bottom wall 130, and a second side wall 140. The top wall 110 and the bottom wall 130 are arranged opposite each other along a third direction Z, and the first side wall 120 and the second side wall 140 are arranged opposite each other along a second direction Y. The top wall 110, the first side wall 120, the bottom wall 130, and the second side wall 140 are connected end-to-end. A cavity is formed within the rear section 100. In this embodiment, the rear section 100 of the rear longitudinal beam can be made of materials such as aluminum alloy, thereby giving it high strength.

[0063] The rear floor side panel 200 has one end (the end along the second direction Y) connected to the top wall 110. Exemplarily, in this embodiment, the rear floor side panel 200 can be made of steel plate, aluminum plate, etc. Figure 2 As shown, the rear floor side panel 200 can be connected to the top wall 110 via a third fastener 440. The third fastener 440 can be, for example, a flow drill screw (FDS), which offers higher connection strength, better sealing, and superior weight reduction compared to welding. Furthermore, the rear floor side panel 200 and the top wall 110 can also be bonded together with structural adhesive to further enhance their connection strength.

[0064] Support plate 300, the support plate 300 is located on the side of the rear floor edge plate 200 along the third direction Z, such as Figure 1As shown, the support plate 300 is located below the rear floor side plate 200. The support plate 300 can be made of steel plate, aluminum plate, etc. The support plate 300 includes a first support plate 310 and a second support plate 320. The second support plate 320 is connected to one end of the first support plate 310 and is inclined to the first support plate 310. For example, as... Figure 4 and Figure 7 As shown, in this embodiment of the application, the first support plate 310 can be substantially perpendicular to the second support plate 320. In a plane perpendicular to the first direction X, the first support plate 310 and the second support plate 320 are substantially "L" shaped. The first support plate 310 is connected to the rear floor side plate 200, and the second support plate 320 is connected to the first side wall 120.

[0065] As described above, this embodiment of the application provides a support plate 300 below the rear floor side panel 200. The support plate 300 includes a first support plate 310 and a second support plate 320. The second support plate 320 is inclined to the first support plate 310. The first support plate 310 connects the rear floor side panel 200, and the second support plate 320 connects the rear longitudinal beam rear section 100. This improves the connection strength between the rear floor side panel 200 and the rear longitudinal beam rear section 100, reduces the probability of the rear floor side panel 200 tilting or sagging after connecting to the rear longitudinal beam rear section 100, and thus improves the welding strength of the rear floor side panel 200 to other parts, ensuring that the vehicle has better safety performance.

[0066] In this embodiment, the first support plate 310 is welded to the rear floor edge plate 200. Specifically, in conjunction with... Figure 2 and Figure 4 In this embodiment, the edge of the rear floor panel 200 can be welded to the corresponding area on the first support plate 310. Spot welding can be used during welding, and to improve the connection strength, structural adhesive can be used to bond and fix the two in the unwelded areas.

[0067] In this embodiment, the first support plate 310 is connected to the rear floor side plate 200 by welding, which helps to improve the connection strength between the two and the overall structure is better.

[0068] like Figure 3 and Figure 4 As shown, the second support plate 320 of this application embodiment is provided with a plurality of first fixing holes 321, and the first side wall 120 is provided with a plurality of first through holes 121. The plurality of first fixing holes 321 correspond one-to-one with the plurality of first through holes 121. The first fastener 410 passes through the first through hole 121 and is connected to the corresponding first fixing hole 321.

[0069] In this embodiment, the first fastener 410 can be, for example, a blind rivet; the rear section 100 of the rear longitudinal beam can be made of aluminum alloy; and the second support plate 320 can be made of steel. By connecting the second support plate 320 to the first side wall 120 with the blind rivet, a connection between different metal materials can be achieved, ensuring reliable connection strength and meeting the vehicle's safety requirements.

[0070] Please continue to refer to Figure 7 The embodiments of this application also include a battery tray 500, which is disposed on the side of the rear floor side panel 200 away from the first support plate 310, that is, above the rear floor side panel 200. The battery tray 500 can provide a foundation for the installation of the battery, thereby facilitating the installation of the vehicle's battery at the rear of the vehicle. The battery is protected by the surrounding rear longitudinal beam rear section 100, rear floor and other structures, which helps to reduce the risk of power failure after a vehicle collision.

[0071] Specifically, please combine Figure 4 and Figure 7 In this embodiment, the first support plate 310 is provided with a plurality of second fixing holes 311, the rear floor side plate 200 is provided with a plurality of second through holes 210, and the battery tray 500 is provided with a plurality of third through holes (not shown in the figure). The plurality of second fixing holes 311, the plurality of second through holes 210 and the plurality of third through holes correspond one-to-one. The second fastener 420 passes through the second through hole 210 and the corresponding third through hole in sequence and is connected to the corresponding second fixing hole 311.

[0072] The second fastener 420 in this embodiment can be a screw, bolt, etc. The battery tray 500 is detachably connected to the first support plate 310 and the rear floor side plate 200 through the second fastener 420, thereby facilitating subsequent installation and maintenance disassembly. When the second fastener 420 is a bolt, it can be used in conjunction with a nut 430 to improve the stability of the connection.

[0073] Please continue to refer to Figures 1-4 In this embodiment of the application, along the first direction X, one end of the first support plate 310 is also provided with a side panel connector 330, which is used to connect with the side panel of the vehicle.

[0074] In this embodiment of the application, a side panel connector 330 is provided at one end of the rear floor side panel 200 along the first direction X, so that the side panel can be connected to the side panel of the vehicle through the side panel connector 330, thereby preventing the side panel from falling off.

[0075] Specifically, the side panel connector 330 includes a first panel 331, a second panel 332, and a third panel 333. Along the first direction X, the first end of the first panel 331 is connected to the first support plate 310. The second panel 332 is disposed at the second end of the first panel 331, and the second panel 332 is inclined relative to the first panel 331. The third panel 333 is disposed at the end of the second panel 332 opposite to the first panel 331, and the third panel 333 is inclined relative to the second panel 332.

[0076] Before the first enclosure 331, second enclosure 332, and third enclosure 333 of this application embodiment are connected to the side enclosure, their cross-sections (referring to the cross-section perpendicular to the first direction X) are generally "Z" shaped, wherein the third enclosure 333 can be bent under the action of external force. When connecting the side enclosure, the third enclosure 333 can be bent towards the first enclosure 331, so that the first enclosure 331, second enclosure 332, and third enclosure 333 form a structure with a cross-section (referring to the cross-section perpendicular to the first direction X) of "U" shaped, thereby covering the side enclosure and preventing the side enclosure from falling off.

[0077] Furthermore, the side panel connector 330 in this embodiment of the application also includes a side panel welding plate 334, which is connected to the second panel 332. The side panel welding plate 334 is provided with welding holes 3341 for welding to the side panel of the vehicle.

[0078] This application embodiment provides a side panel welding plate 334, which is welded to the side wall of the side panel using welding holes 3341 on the side panel welding plate 334, thereby further improving the connection strength with the vehicle side panel and preventing the side panel from falling off.

[0079] Please refer to Figures 4-6 In this embodiment of the application, a first reinforcing plate 150 is provided in the cavity of the rear section 100 of the rear longitudinal beam, and the first reinforcing plate 150 is arranged parallel to the top wall 110.

[0080] The cavity also includes a reinforcing member 160, located between the first reinforcing plate 150 and the bottom wall 130. The reinforcing member 160 includes a second reinforcing plate 161 and a third reinforcing plate 162, which are perpendicular to each other and form an "L"-shaped structure. The second reinforcing plate 161 is connected to the bottom wall 130, and the third reinforcing plate 162 is connected to the first side wall 120.

[0081] For example, the second reinforcing plate 161 of this application embodiment is provided with a fourth through hole 1612, and the corresponding bottom wall 130 may be provided with a third fixing hole (not shown in the figure). A pop rivet can be used to pass through the fourth through hole 1612 and fix it to the third fixing hole, thereby realizing the connection and fixation of the second reinforcing plate 161 and the bottom wall 130. The third reinforcing plate 162 may be provided with a fifth through hole 1622, and the first side wall 120 is also provided with a fourth fixing hole 123. A pop rivet can be used to pass through the fifth through hole 1622 and fix it to the fourth fixing hole 123, thereby realizing the connection and fixation of the third reinforcing plate 162 and the first side wall 120.

[0082] The embodiments of this application improve the overall strength of the rear section 100 of the rear longitudinal beam by providing a first reinforcing plate 150 and a reinforcing member 160 within the rear section 100 of the rear longitudinal beam.

[0083] Furthermore, such as Figure 5 As shown, along the first direction X, the length of the third reinforcing plate 162 in this embodiment is less than the length of the second reinforcing plate 161, and a gap is formed between the third reinforcing plate 162 and the end of the rear section 100 of the rear longitudinal beam.

[0084] In this embodiment, the length of the third reinforcing plate 162 is set to be less than the length of the second reinforcing plate 161, and a gap is formed between the third reinforcing plate 162 and the end of the rear longitudinal beam 100. This allows the rear longitudinal beam 100 to be divided into a "soft zone" L2 (i.e., the area without the third reinforcing plate 162) and a "hard zone" L1 (i.e., the area with the third reinforcing plate 162). The "soft zone" L2 is responsible for deformation and energy absorption during a rear-end collision, while the "hard zone" L1 is responsible for preventing deformation and preventing the battery from losing power to the entire vehicle due to a rear-end collision.

[0085] The reinforcing member 160 in this embodiment can also provide mounting points for other parts. Specifically, the second reinforcing plate 161 is provided with an exhaust system mounting hole 1611, and the bottom wall 130 is provided with a corresponding through hole, so as to facilitate the passage of fasteners such as bolts and screws, and to facilitate connection with the vehicle's exhaust system.

[0086] The third reinforcing plate 162 is provided with a first process hanging hole 1621, and the first side wall 120 is provided with a second process hanging hole 122. The first process hanging hole 1621 and the second process hanging hole 122 correspond to each other, so that they can be fixed to the ground by means of chains or other devices, and prevent the vehicle body from being lifted when the chassis rear suspension is lifted, thus preventing the rear suspension installation from failing.

[0087] The third reinforcing plate 162 is also provided with a bumper bracket mounting hole 1623, and the first side wall 120 is provided with a corresponding sixth through hole 124. Bolts, screws and other fasteners can be passed through the bumper bracket mounting hole 1623 and the sixth through hole 124 to achieve connection and fixation with the vehicle bumper.

[0088] Please continue to refer to Figure 1 and Figure 4 The embodiments of this application also include a rear skirt connecting plate 600, which is located at the end of the rear section 100 of the rear longitudinal beam along the first direction X. The rear skirt connecting plate 600 is provided with a rear anti-collision beam mounting hole 610.

[0089] In this embodiment, a rear skirt connecting plate 600 is provided at the end of the rear longitudinal beam rear section 100, so that the rear anti-collision beam mounting hole 610 on the rear skirt connecting plate 600 can be used to connect with the rear anti-collision beam of the vehicle, thereby improving the vehicle assembly efficiency.

[0090] This application also provides a vehicle including the aforementioned rear longitudinal beam rear section assembly.

[0091] The vehicle in this embodiment of the application uses the aforementioned rear longitudinal beam assembly, which improves the connection strength between the rear floor side panel and the rear longitudinal beam, reduces the probability of the rear floor side panel tilting or sagging after being connected to the rear longitudinal beam, thereby improving the welding strength of the rear floor side panel to other parts and ensuring that the vehicle has better safety performance.

[0092] 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 rear section assembly, characterized in that, include: The rear section (100) of the rear longitudinal beam includes a top wall (110) and a first side wall (120); Rear floor side panel (200), one end of which is connected to the top wall (110); The support plate (300) includes a first support plate (310) and a second support plate (320). The second support plate (320) is connected to one end of the first support plate (310) and is inclined to the first support plate (310). The first support plate (310) is connected to the rear floor side plate (200), and the second support plate (320) is connected to the first side wall (120).

2. The rear longitudinal beam rear section assembly of claim 1, wherein, The first support plate (310) is welded to the rear floor side plate (200); The second support plate (320) is provided with a plurality of first fixing holes (321), and the first side wall (120) is provided with a plurality of first through holes (121). The plurality of first fixing holes (321) correspond one-to-one with the plurality of first through holes (121). The first fastener (410) passes through the first through hole (121) and connects to the corresponding first fixing hole (321).

3. The rear longitudinal beam rear section assembly of claim 1, wherein, It also includes a battery tray (500), which is disposed on the side of the rear floor side panel (200) opposite to the first support plate (310); The first support plate (310) is provided with a plurality of second fixing holes (311), the rear floor side plate (200) is provided with a plurality of second through holes (210), and the battery tray (500) is provided with a plurality of third through holes. The plurality of second fixing holes (311), the plurality of second through holes (210) and the plurality of third through holes correspond one-to-one. The second fastener (420) passes through the second through hole (210) and the corresponding third through hole in sequence and then connects to the corresponding second fixing hole (311).

4. The rear longitudinal beam rear section assembly according to claim 1, characterized in that, The rear section (100) of the rear longitudinal beam extends along a first direction, and one end of the rear floor side plate (200) along a second direction is connected to the top wall (110); Along the first direction, one end of the first support plate (310) is also provided with a side panel connector (330), which is used to connect with the side panel of the vehicle; Wherein, the first direction and the second direction are perpendicular to each other.

5. The rear longitudinal beam rear section assembly according to claim 4, characterized in that, The side panel connector (330) includes a first panel (331), a second panel (332), and a third panel (333). Along the first direction, the first end of the first panel (331) is connected to the first support plate (310). The second panel (332) is disposed at the second end of the first panel (331) and is inclined to the first panel (331). The third panel (333) is disposed at the end of the second panel (332) away from the first panel (331) and is inclined to the second panel (332).

6. The rear longitudinal beam rear section assembly according to claim 5, characterized in that, The side panel connector (330) also includes a side panel welding plate (334), which is connected to the second panel (332). The side panel welding plate (334) is provided with welding holes (3341) for welding to the side panel of the vehicle.

7. The rear longitudinal beam rear section assembly according to claim 1, characterized in that, The rear section (100) of the rear longitudinal beam also includes a bottom wall (130) and a second side wall (140). The top wall (110), the first side wall (120), the bottom wall (130) and the second side wall (140) are connected end to end. A cavity is formed in the rear section (100) of the rear longitudinal beam. A first reinforcing plate (150) is provided in the cavity. The first reinforcing plate (150) is arranged parallel to the top wall (110). The cavity is also provided with a reinforcing member (160), which is located between the first reinforcing plate (150) and the bottom wall (130). The reinforcing member (160) includes a second reinforcing plate (161) and a third reinforcing plate (162). The second reinforcing plate (161) is connected to the bottom wall (130), and the third reinforcing plate (162) is connected to the first side wall (120).

8. The rear longitudinal beam rear section assembly according to claim 7, characterized in that, Along the first direction, the length of the third reinforcing plate (162) is less than the length of the second reinforcing plate (161), and a gap is formed between the third reinforcing plate (162) and the end of the rear section (100) of the rear longitudinal beam; The second reinforcing plate (161) is provided with an exhaust system mounting hole (1611), the third reinforcing plate (162) is provided with a first process hanging hole (1621), and the first side wall (120) is provided with a second process hanging hole (122).

9. The rear longitudinal beam rear section assembly according to claim 1, characterized in that, It also includes a rear skirt plate connecting plate (600), which is located at the end of the rear section (100) of the rear longitudinal beam along the first direction, and the rear skirt plate connecting plate (600) is provided with a rear anti-collision beam mounting hole (610).

10. A vehicle, characterized in that, Includes the rear longitudinal beam assembly as described in any one of claims 1-9.

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