Front cabin assembly of chassis, chassis and vehicle

Abstract

The utility model provides a front cabin assembly of a chassis, the chassis and a vehicle. The forecabin assembly comprises a longitudinal beam and a torsion box, and the longitudinal beam is provided with a containing cavity; the torsion box comprises a box body and a connecting part, the box body is located on one side of the longitudinal beam in the extending direction of the longitudinal beam, the connecting part is arranged on the side, close to the longitudinal beam, of the box body, located in the containing cavity and connected with the longitudinal beam, in other words, the torsion box and the longitudinal beam are connected through the inner space of the longitudinal beam, and occupation of the torsion box on the peripheral space of the longitudinal beam can be reduced; the space utilization rate of the forecabin assembly is improved, and then the production cost of the chassis and the vehicle is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a front compartment assembly of a chassis, a chassis, and a vehicle. Background Technology

[0002] With the rapid development of automation and intelligence, new energy vehicles are becoming increasingly popular and sought after. Reducing production costs is a key research area in vehicle technology. Utility Model Content

[0003] In view of the above problems, this application provides a front compartment assembly of a chassis, a chassis, and a vehicle, which can reduce the production cost of the chassis and the vehicle.

[0004] In a first aspect, embodiments of this application provide a front compartment assembly for a chassis, including a longitudinal beam and a torsion box. The longitudinal beam has a receiving cavity. The torsion box includes a box body and a connecting part. The box body is located on one side of the longitudinal beam along the extension direction of the longitudinal beam. The connecting part is disposed on the side of the box body close to the longitudinal beam. The connecting part is located in the receiving cavity and is connected to the longitudinal beam.

[0005] In the above solution, the longitudinal beam has a receiving cavity, and the torsion box includes a box body and a connecting part. The box body is located on one side of the longitudinal beam along the extension direction of the longitudinal beam, and the connecting part is located on the side of the box body close to the longitudinal beam. The connecting part is connected to the longitudinal beam in the receiving cavity of the longitudinal beam. That is, the internal space of the longitudinal beam is used to connect the torsion box and the longitudinal beam, which can reduce the space occupied by the torsion box on the outer periphery of the longitudinal beam, improve the space utilization rate of the front compartment assembly, and thus reduce the production cost of the chassis and vehicle.

[0006] In some embodiments, the connecting part includes a connecting body and a plurality of first reinforcing ribs, the connecting body is connected to the longitudinal beam, and the plurality of first reinforcing ribs are disposed on the connecting body.

[0007] In the above scheme, the connecting body is the box body that connects the longitudinal beam and the torsion box within the receiving cavity. The connecting body can, to a certain extent, act as a supporting structure for the longitudinal beam, providing support for it. Furthermore, by setting a first reinforcing rib on the connecting body, the structural strength of the connecting body can be effectively improved, thereby enhancing the connection reliability between the connecting body and the longitudinal beam, as well as the supporting effect of the connecting body on the longitudinal beam.

[0008] In some embodiments, the connecting body includes a first top plate, a first bottom plate, and a connecting plate. The first top plate and the first bottom plate are disposed opposite each other along the height direction of the chassis. The connecting plate is connected between the first top plate and the first bottom plate. A plurality of first reinforcing ribs are disposed on the connecting plate. The connecting plate is provided with fastening holes extending along the width direction of the chassis. The longitudinal beam is provided with through holes extending along the width direction. The connecting plate and the longitudinal beam are used to be connected by the fastening holes, through holes, and fasteners.

[0009] In the above solution, the connection between the connecting plate and the longitudinal beam is achieved by using fasteners that engage with the fastening holes on the connecting plate and the through holes on the longitudinal beam. This reduces the difficulty of connecting the main body to the longitudinal beam and improves the assembly efficiency of the front compartment assembly. Furthermore, by placing multiple first reinforcing ribs on the connecting plate, the structural strength of the connecting plate is enhanced, improving the reliability of the connecting plate's support for the first bottom plate and the first top plate, as well as the connection reliability between the connecting plate and the longitudinal beam. This, in turn, improves the supporting effect of the main body on the longitudinal beam and enhances the structural strength of the longitudinal beam.

[0010] In some embodiments, in the width direction, the fastening hole penetrates the connecting plate, and the through hole and the fastening hole are respectively used for fasteners to pass through; or, in the width direction, fastening holes are respectively provided on both sides of the connecting plate, wherein the fastening hole on one side of the connecting plate is spaced apart from the other side surface of the connecting plate, and the fastening hole is used to accommodate a part of the fastener and to be threadedly connected to the fastener.

[0011] In the above scheme, the fastening holes can penetrate the connecting plate in the width direction. The fasteners, after passing through the through holes on the longitudinal beam and the fastening holes on the connecting plate, connect the connecting part and the longitudinal beam. This helps reduce the assembly difficulty of the connecting part and the longitudinal beam, improves assembly efficiency, and, since both ends of the fasteners are exposed relative to the longitudinal beam, subsequent maintenance and repair are more convenient. Alternatively, the fastening holes can be located on opposite surfaces of the connecting plate in the width direction. The fastening holes on one side of the connecting plate in the width direction are spaced apart from those on the other side. The fastening holes can be threaded onto the fasteners after they pass through the through holes in the longitudinal beam, thereby connecting the longitudinal beam and the connecting part. This reduces the difficulty of connecting the longitudinal beam and the connecting part with fasteners. Furthermore, since the connection point between the fastener and the connecting part is located inside the receiving cavity of the longitudinal beam, the influence of external factors is reduced, improving the reliability of the connection between the fastener and the connecting part. It also reduces the space occupied by the fasteners in the width direction of the longitudinal beam, further improving the space utilization of the front compartment assembly.

[0012] In some embodiments, the longitudinal beam includes a first beam and a second beam arranged along the width direction of the chassis, the first beam being connected to the second beam and defining a receiving cavity.

[0013] In the above scheme, the first beam and the second beam arranged along the width direction of the chassis are connected to form a cavity, which can reduce the forming difficulty of the longitudinal beam and improve the production efficiency of the longitudinal beam.

[0014] In some embodiments, at least one of the first beam and the second beam is bonded to the connecting portion.

[0015] In the above scheme, at least one of the first beam and the second beam is bonded to the connecting part, which can reduce the connection difficulty and improve the assembly efficiency.

[0016] In some embodiments, the first beam includes a second top plate and a second side plate connected to the second top plate, and the second beam includes a second bottom plate and a third side plate connected to the second bottom plate. The second top plate and the second bottom plate are arranged at intervals relative to each other along the height direction of the chassis, and the second side plate and the third side plate are arranged at intervals relative to each other along the width direction. The second top plate, the second bottom plate, the second side plate and the third side plate enclose a receiving cavity.

[0017] In the above scheme, during the assembly process of the connection between the longitudinal beam and the torsion box, the first beam and the second beam can move approximately along a diagonal direction inclined relative to the height and width directions towards the connection until the first beam and the second beam cover the outer periphery of the connection and then connect, thus assembling the longitudinal beam and the connection. Compared to the assembly method of first forming a receiving cavity with the first beam and the second beam and then inserting the connection into the receiving cavity, the above assembly method can reduce the relative movement between the connection and the first beam and the second beam after contact, thereby reducing the relative friction between the first beam and the second beam and the outer wall of the connection during the assembly process, and reducing the frictional loss generated during the assembly process. Furthermore, when at least one of the first beam and the second beam is bonded to the connection, the above assembly method can also reduce the risk of the adhesive between at least one of the first beam and the second beam and the connection being rubbed off during the assembly process, thereby improving the bonding reliability.

[0018] In some embodiments, the first beam further includes a first flange, which is disposed on the side of the second top plate away from the second bottom plate along the height direction, and the first flange is attached to and connected to the third side plate; and / or, the second beam further includes a second flange, which is disposed on the side of the second bottom plate away from the second top plate along the height direction, and the second flange is attached to and connected to the second side plate.

[0019] In the above scheme, by providing a first flange in the first beam for contact and connection with the third side plate of the second beam, the connection area between the first beam and the second beam can be increased, thereby improving the connection reliability between them. And / or, by providing a second flange in the second beam for contact and connection with the second side plate of the first beam, the connection area between the first beam and the second beam can be increased, thereby improving the connection reliability between them.

[0020] In some embodiments, the longitudinal beam has at least one clearance portion located on the outer surface of the longitudinal beam opposite to the receiving cavity.

[0021] In the above solution, by forming a clearance section on the longitudinal beam to avoid other structures in the front compartment assembly, the space utilization of the front compartment assembly can be improved, while reducing the risk of interference between the longitudinal beam and other structures in the front compartment assembly.

[0022] In some embodiments, the box body includes a third top plate, a third bottom plate, and a plurality of second reinforcing ribs. The third top plate and the third bottom plate are disposed opposite each other along the height direction of the chassis, and the plurality of second reinforcing ribs are disposed between the third top plate and the third bottom plate.

[0023] In the above scheme, the box body includes a third top plate, a third bottom plate, and multiple second reinforcing ribs. The third top plate and the third bottom plate are arranged opposite each other along the height direction of the chassis. The multiple second reinforcing ribs are arranged between the third top plate and the third bottom plate, which can improve the structural strength of the box body, that is, improve the torque box's torque bearing capacity.

[0024] In some embodiments, in a plane perpendicular to the height direction, the projection of the second reinforcing rib along the height direction lies within the projection of the third top plate or the third bottom plate along the height direction.

[0025] In the above scheme, by setting the projection of the second reinforcing rib along the height direction to be located within the projection of the third top plate or the third bottom plate along the height direction, the second reinforcing rib is confined to the coverage area of ​​the third top plate and the third bottom plate. This reduces the risk of the second reinforcing rib protruding outward and interfering with other surrounding structures, and improves the utilization rate of the space around the torsion box.

[0026] Secondly, this application provides a chassis including a front cabin assembly, a rear cabin assembly, and an energy cabin assembly. The front cabin assembly and the rear cabin assembly are respectively connected to the two ends of the energy cabin assembly, and the torque box of the front cabin assembly is connected to the energy cabin assembly.

[0027] In some embodiments, the front cabin assembly is detachably connected to the energy cabin assembly; and / or, the rear cabin assembly is detachably connected to the energy cabin assembly.

[0028] In the above solutions, the front cabin assembly and energy cabin assembly are detachably connected, allowing for their separation, decoupling, and connection. This enables independent development of the front cabin assembly and energy cabin assembly, allowing them to be replaced as needed, shortening the development cycle and reducing costs. And / or, the rear cabin assembly and energy cabin assembly are detachably connected, allowing for their separation, decoupling, and connection. This enables independent development of the rear cabin assembly and energy cabin assembly, allowing them to be replaced as needed, shortening the development cycle and reducing costs.

[0029] In some embodiments, the energy compartment assembly includes a frame and battery cells, with the front compartment assembly and the rear compartment assembly respectively connected to both ends of the frame, and the battery cells disposed on the frame.

[0030] In the above scheme, the battery cells are mounted on the frame to form an energy compartment assembly. The frame provides physical protection for the battery cells, improving their stability and reliability. Furthermore, the front and rear compartment assemblies are connected to both ends of the frame, and these assemblies also provide a certain degree of buffering protection for the battery cells mounted on the frame. In the event of a collision, either the front or rear compartment assembly can absorb the impact force first, reducing the collision stress directly transmitted to the battery cells.

[0031] In some embodiments, the frame includes a sill beam, to which a torsion box is connected.

[0032] In the above solution, connecting the torsion box to the sill beam of the energy compartment assembly improves the connection reliability between the torsion box and the energy compartment assembly, thereby enhancing chassis stability. Furthermore, connecting the torsion box to the sill beam further optimizes the force transmission path between the front compartment assembly and the energy compartment assembly, improving the chassis's collision reliability.

[0033] Thirdly, embodiments of this application also provide a vehicle, including a chassis and an upper body, wherein the upper body is connected to the chassis.

[0034] In some embodiments, the upper body and the chassis are detachably connected.

[0035] In the above solution, the upper body and chassis are detachably connected, which can realize the separation, decoupling and connection of the upper body and chassis, thereby enabling the independent development of the upper body and chassis. This allows the upper body and chassis to be replaced as needed, shortening the R&D cycle and reducing costs.

[0036] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a structural schematic diagram of the front cabin assembly provided in some embodiments of this application;

[0039] Figure 2 This is an assembly diagram of the torsion box and longitudinal beam in the front compartment assembly provided in some embodiments of this application;

[0040] Figure 3 This is an exploded schematic diagram of the torsion box and longitudinal beam in the front compartment assembly provided in some embodiments of this application;

[0041] Figure 4 This is a structural schematic diagram of the torque box in the front cabin assembly provided in some embodiments of this application;

[0042] Figure 5 An exploded view of the longitudinal beams in the front compartment assembly provided for some embodiments of this application;

[0043] Figure 6 for Figure 2 Schematic diagram of the cross section at point AA;

[0044] Figure 7 Another structural schematic diagram of the torque box in the front compartment assembly provided for some embodiments of this application;

[0045] Figure 8 This is an exploded view of the chassis according to an embodiment of this application;

[0046] Figure 9 This is an exploded view of the vehicle according to an embodiment of this application.

[0047] Tag name:

[0048] Vehicle 1000; Chassis 1; Front compartment assembly 10; Rear compartment assembly 20; Energy compartment assembly 30; Frame 31; Sill beam 311; Battery cell 32; Upper body 2;

[0049] Longitudinal beam 100; First beam body 110; Second top plate 111; Second side plate 112; First flange 113; Second beam body 120; Second bottom plate 121; Third side plate 122; Second flange 123; Torque box 200; Box body 210; Third top plate 211; Third bottom plate 212; Second reinforcing rib 213; Connecting part 220; Connecting body 221; First top plate 2211; First bottom plate 2212; Connecting plate 2213; First reinforcing rib 222; Front anti-collision beam 300; Front crossbeam 400; Receiving cavity S1; Fastening hole S2. Detailed Implementation

[0050] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0052] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0053] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0054] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0055] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0056] Unless otherwise specified, all steps a in this application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order. For example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0057] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0058] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0059] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0060] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0061] The front compartment assembly of a vehicle chassis typically includes longitudinal beams and a torsion box. The longitudinal beams are connected to the torsion box, and together they provide support and bear torque. There are several ways to connect the torsion box and the longitudinal beams.

[0062] In related technologies, longitudinal beams can be inserted into the torsion box and connected to it via structural adhesive, bolts, and other connectors. However, in the aforementioned connection method, the torsion box occupies a significant amount of space around the longitudinal beam, affecting the space utilization rate of the front compartment assembly and consequently leading to higher production costs for the chassis and vehicle.

[0063] In view of this, the present application provides a front compartment assembly for a chassis. By setting a receiving cavity inside the longitudinal beam, the body of the torque box is arranged on one side of the longitudinal beam along the extension direction of the longitudinal beam, and the connecting part is arranged on the side of the body of the box close to the longitudinal beam, so that the connecting part is connected to the longitudinal beam inside the receiving cavity of the longitudinal beam. That is, the torque box and the longitudinal beam are arranged using the internal space of the longitudinal beam, which can reduce the space occupied by the torque box on the outer periphery of the longitudinal beam, improve the space utilization rate of the front compartment assembly, and thus reduce the production cost of the chassis and vehicle.

[0064] Please see Figures 1 to 3This application provides a front compartment assembly 10 of a chassis 1, including a longitudinal beam 100 and a torsion box 200. The longitudinal beam 100 has a receiving cavity S1. The torsion box 200 includes a box body 210 and a connecting part 220. The box body 210 is located on one side of the longitudinal beam 100 along the extension direction of the longitudinal beam 100. The connecting part 220 is disposed on the side of the box body 210 close to the longitudinal beam 100. The connecting part 220 is located in the receiving cavity S1 and is connected to the longitudinal beam 100.

[0065] The longitudinal beam 100 is an important component for supporting the vehicle body, chassis 1, and resisting the loads and impact forces from the wheels on the vehicle 1000. The longitudinal beam 100 can extend parallel to the length direction of the chassis 1, or it can extend in a direction other than the length and width directions of the chassis 1. A receiving cavity S1 is formed inside the longitudinal beam 100, which is used to connect at least a portion of the connecting portion 220 of the torque box 200. Furthermore, an opening can be provided on one side of the longitudinal beam 100 in its extending direction, communicating with the receiving cavity S1 and allowing the connecting portion 220 to pass through. The longitudinal beam 100 can have various structures; for example, it can be a one-piece molded structure, or it can be formed by connecting multiple sheet metal parts. The longitudinal beam 100 can be a square rod structure extending approximately along the length direction of the chassis 1, or it can be other irregular rod-shaped structures.

[0066] The torque box 200 is an important component for transmitting and bearing torque. The torque box 200 may include a box body 210 and a connecting part 220. The box body 210 and the connecting part 220 can be an integrally formed structure, or they can be separate structures connected by bolts or other fasteners. In the extending direction of the longitudinal beam 100, the box body 210 is disposed on the side of the longitudinal beam 100 with the aforementioned opening, and the connecting part 220 is located within the receiving cavity S1 of the longitudinal beam 100, and can be connected to the box body 210 through the opening of the longitudinal beam 100. There are various ways to connect the connecting part 220 to the longitudinal beam 100; for example, the connecting part 220 can be connected to the longitudinal beam 100 by means of fasteners such as bolts, or the connecting part 220 can be bonded to the longitudinal beam 100. There can be two torque boxes 200, which are arranged opposite each other in the width direction of the chassis 1, and the two torque boxes 200 can be connected one-to-one to the two longitudinal beams 100. In addition, the torque box 200 can also be connected to the front crossbeam 400.

[0067] In the above scheme, the longitudinal beam 100 has a receiving cavity S1, and the torsion box 200 includes a box body 210 and a connecting part 220. The box body 210 is disposed on one side of the longitudinal beam 100 along the extension direction of the longitudinal beam 100, and the connecting part 220 is disposed on the side of the box body 210 close to the longitudinal beam 100. The connecting part 220 is connected to the longitudinal beam 100 in the receiving cavity S1 of the longitudinal beam 100. That is, the internal space of the longitudinal beam 100 is used to connect the torsion box 200 and the longitudinal beam 100, which can reduce the occupation of the outer peripheral space of the longitudinal beam 100 by the torsion box 200, improve the space utilization rate of the front compartment assembly 10, and thus reduce the production cost of the chassis 1 and the vehicle 1000.

[0068] Furthermore, since the connecting part 220 is connected to the longitudinal beam 100 within the receiving cavity S1 of the longitudinal beam 100, the connecting part 220 can also serve as a supporting structure for the longitudinal beam 100 to a certain extent, thereby supporting the longitudinal beam 100 and improving the structural strength of the longitudinal beam 100. At this time, the number of reinforcing ribs in other parts of the longitudinal beam 100 can be reduced to a certain extent, or even no additional reinforcing ribs are needed, which can further improve the space utilization of the front compartment assembly 10.

[0069] Please continue reading. Figure 1 In some embodiments, the front compartment assembly 10 further includes a front bumper beam 300 and a front crossbeam 400. There are two longitudinal beams 100. The front bumper beam 300 and the front crossbeam 400 can be arranged opposite each other along the length of the chassis 1, and the two longitudinal beams 100 are arranged opposite each other along the width of the chassis 1. The two ends of the longitudinal beams 100 are connected to the front bumper beam 300 and the front crossbeam 400. The front bumper beam 300, the front crossbeam 400, and the two longitudinal beams 100, either alone or in combination with other components, can form a roughly quadrilateral structure. This structure provides good support stability and facilitates the arrangement of other structures.

[0070] Please see Figure 4 In some embodiments, the connecting part 220 includes a connecting body 221 and a plurality of first reinforcing ribs 222. The connecting body 221 is connected to the longitudinal beam 100, and the plurality of first reinforcing ribs 222 are disposed on the connecting body 221.

[0071] Specifically, the connecting part 220 includes a connecting body 221 and a plurality of first reinforcing ribs 222. The connecting body 221 is a component for connecting the box body 210 and the longitudinal beam 100. The connecting body 221 is located within the receiving cavity S1 and connected to the longitudinal beam 100. In this case, the connecting body 221 can, to a certain extent, act as a support structure for the longitudinal beam 100, supporting the longitudinal beam 100 within the receiving cavity S1. Furthermore, in the extending direction of the longitudinal beam 100, one side of the connecting body 221 can also be connected to the box body 210 through an opening on the longitudinal beam 100. The first reinforcing ribs 222 are components used to enhance the structural strength of the connecting body 221, thereby improving the connection reliability between the connecting body 221 and the longitudinal beam 100, as well as the supporting effect of the connecting body 221 on the longitudinal beam 100. The first reinforcing ribs 222 are located within the receiving cavity S1 and are disposed within the connecting body 221, thereby enhancing the structural strength of the connecting body 221.

[0072] It should be noted that the shape of the first reinforcing rib 222 in the connecting part 220 can be varied. For example, the first reinforcing rib 222 can be a straight sheet metal structure or an arc-shaped sheet metal structure. The first reinforcing rib 222 can extend approximately along the extension direction of the longitudinal beam 100 or approximately along the height direction of the chassis 1. The number, thickness, and length of the first reinforcing rib 222 can be flexibly set in practical applications. Optionally, the above parameters can be adjusted according to the requirements of CAE (Computer-Aided Engineering) analysis of the vehicle 1000 to improve the space utilization of the front compartment assembly 10 and enhance the performance of the front compartment assembly 10 in terms of force transmission and collision protection.

[0073] Please continue reading. Figure 4 In some embodiments, the connecting body 221 includes a first top plate 2211, a first bottom plate 2212, and a connecting plate 2213. The first top plate 2211 and the first bottom plate 2212 are arranged opposite each other along the height direction of the chassis 1. The connecting plate 2213 is connected between the first top plate 2211 and the first bottom plate 2212. A plurality of first reinforcing ribs 222 are provided on the connecting plate 2213. The connecting plate 2213 is provided with fastening holes S2 extending along the width direction of the chassis 1. The longitudinal beam 100 is provided with through holes extending along the width direction. The connecting plate 2213 and the longitudinal beam 100 are used to connect through the fastening holes S2, the through holes, and the fasteners.

[0074] The first top plate 2211 and the first bottom plate 2212 are two plate structures arranged opposite each other in the height direction of the chassis 1. The first top plate 2211 and the first bottom plate 2212 can be regular flat plate shapes or other irregular shapes. Optionally, the first top plate 2211 and the first bottom plate 2212 can contact the two sides of the longitudinal beam 100 in the height direction to support the longitudinal beam 100, thereby improving the structural strength of the longitudinal beam 100. Alternatively, the first top plate 2211 and the first bottom plate 2212 can also be separated from the two sides of the longitudinal beam 100 in the height direction. In this case, the first top plate 2211 and the first bottom plate 2212 can be used to support the longitudinal beam 100 after deformation in the height direction, reducing the risk of further deformation of the longitudinal beam 100.

[0075] The connecting plate 2213 can be a plate structure that extends approximately along the extension direction of the longitudinal beam 100. The connecting plate 2213 can be a regular flat plate shape or other irregular shapes. The connecting plate 2213 is located between the first top plate 2211 and the first bottom plate 2212. In the height direction, one end of the connecting plate 2213 is connected to the first top plate 2211 and the other end is connected to the first bottom plate 2212 to support the first top plate 2211 and the first bottom plate 2212.

[0076] Optionally, in the width direction of the chassis 1, the connecting plate 2213 can be set close to the center of the first top plate 2211 or the first bottom plate 2212, which can improve the support stability of the connecting plate 2213 for the first top plate 2211 and the first bottom plate 2212.

[0077] The connecting plate 2213 is also used to connect the longitudinal beam 100. The longitudinal beam 100 has a through hole extending in the width direction, and the connecting plate 2213 has a fastening hole S2 extending in the width direction. The connecting plate 2213 and the longitudinal beam 100 can be connected by means of fasteners cooperating with the aforementioned through hole and fastening hole S2.

[0078] The shape of the fastening hole S2 can be various. In one example, the fastening hole S2 can be a hole structure that passes through the connecting plate 2213 along the width direction. Fasteners can pass through the through holes on the longitudinal beam 100 and the fastening hole S2 on the connecting plate 2213 to lock the longitudinal beam 100 and the connecting plate 2213.

[0079] In another example, the fastening hole S2 can also be a recessed hole structure relative to the surface of the connecting plate 2213 and not penetrating through the connecting plate 2213. One end of the fastener enters the fastening hole S2 after passing through the through hole on the longitudinal beam 100, and connects with the connecting plate 2213 in the fastening hole S2, thereby locking the longitudinal beam 100 and the connecting plate 2213. It can be seen that there are multiple ways to connect the fastening hole S2 and the fastener. For example, one end of the fastener can be connected to the inner wall of the fastening hole S2 by thread or interference fit.

[0080] In the above solution, the connection between the connecting plate 2213 and the longitudinal beam 100 is achieved by fastening the fastening holes S2 on the connecting plate 2213 and cooperating with the through holes on the longitudinal beam 100. This reduces the difficulty of connecting the connecting body 221 and the longitudinal beam 100 and improves the assembly efficiency of the front compartment assembly 10. Furthermore, by setting multiple first reinforcing ribs 222 on the connecting plate 2213, the structural strength of the connecting plate 2213 is enhanced, improving the reliability of the connecting plate 2213 in supporting the first bottom plate 2212 and the first top plate 2211, as well as the reliability of the connection between the connecting plate 2213 and the longitudinal beam 100. This, in turn, improves the supporting effect of the connecting body 221 on the longitudinal beam 100 and enhances the structural strength of the longitudinal beam 100.

[0081] In some embodiments, the fastening hole S2 penetrates the connecting plate 2213 in the width direction, and the through hole and the fastening hole S2 are respectively used for fasteners to pass through. Or, as Figure 4 As shown, fastening holes S2 are provided on both sides of the connecting plate 2213 in the width direction. The fastening holes S2 on one side of the connecting plate 2213 are spaced apart from the other side surface of the connecting plate 2213. The fastening holes S2 are used to accommodate a part of the fastener and are threadedly connected to the fastener.

[0082] Specifically, the fastening hole S2 can be a through hole structure that penetrates the connecting plate 2213 in the width direction. After the fastener passes through the through hole on the longitudinal beam 100 and the fastening hole S2 on the connecting plate 2213, it connects the connecting part 220 and the longitudinal beam 100. This helps to reduce the assembly difficulty of the connecting part 220 and the longitudinal beam 100 and improve the assembly efficiency. In addition, at this time, both ends of the fastener are exposed relative to the longitudinal beam 100, which makes subsequent maintenance and repair more convenient.

[0083] Alternatively, the fastening hole S2 can be a blind hole structure that is recessed relative to the surface of the connecting plate 2213 and does not penetrate the connecting plate 2213. The fastening hole S2 is provided on two opposite surfaces of the connecting plate 2213 along the width direction, and is formed by the recess of the two surfaces. The fastening hole S2 located on one side surface of the connecting plate 2213 in the width direction is spaced apart from the other side surface of the connecting plate 2213 in the width direction. The inner wall of the fastening hole S2 is provided with internal threads. When the fastener passes through the through hole on the longitudinal beam 100, one end of the fastener is located on one side of the longitudinal beam 100 in the width direction, and the other end is located in the fastening hole S2 and threadedly connected to the fastening hole S2. This realizes the connection between the longitudinal beam 100 and the connecting part 220. On the one hand, it can reduce the difficulty of connecting the longitudinal beam 100 and the connecting part 220 with fasteners. On the other hand, since the connection part between the fastener and the connecting part 220 is located inside the receiving cavity S1 of the longitudinal beam 100, it can reduce the influence of external factors, improve the connection reliability between the fastener and the connecting part 220, and also reduce the space occupied by the fastener in the width direction of the longitudinal beam 100, further improving the space utilization of the front compartment assembly 10.

[0084] It is understood that the fastener structure in this application embodiment can be various. When the fastening hole S2 is the aforementioned through hole structure, the fastener may include a nut and a bolt, screw, or other structure that can cooperate with the nut. Taking the fastener including a nut and a bolt as an example, after the bolt passes through the through hole on the longitudinal beam 100 and the fastening hole S2 on the connecting plate 2213, the head of the bolt is located on one side of the longitudinal beam 100 along the width direction, and the end of the bolt away from the head is located on the other side. The nut is threadedly connected to the bolt on the side of the longitudinal beam 100 away from the bolt head along the width direction, thereby locking the longitudinal beam 100 and the connecting part 220 along the width direction. When the fastening hole S2 is the aforementioned blind hole structure, the fastener can be a bolt or a combination of screw and nut. Taking the fastener as a bolt as an example, after the bolt passes through the through hole on the longitudinal beam 100 and enters the receiving cavity S1, the head of the bolt is located on one side of the longitudinal beam 100 along the width direction, and the end of the bolt away from the head is located in the fastening hole S2 and threadedly connected to the fastening hole S2, so that the longitudinal beam 100 and the connecting part 220 can be locked along the width direction.

[0085] Please see Figure 5 In some embodiments, the longitudinal beam 100 includes a first beam 110 and a second beam 120 arranged along the width direction of the chassis 1, the first beam 110 and the second beam 120 being connected and defining a receiving cavity S1.

[0086] The first beam 110 and the second beam 120 are arranged along the width direction. In the width direction, a portion of the surface of the first beam 110 near the second beam 120 is recessed in the direction away from the second beam 120. A portion of the surface of the second beam 120 near the first beam 110 can also be recessed in the direction away from the first beam 110, so that the first beam 110 and the second beam 120 can be connected to form a receiving cavity S1, which is located between the first beam 110 and the second beam 120.

[0087] The first beam 110 and the second beam 120 can have various shapes. For example, the first beam 110 and the second beam 120 can both be regular shapes formed by multiple plate-like structures, or they can be other irregular shapes. The shapes of the first beam 110 and the second beam 120 can be the same or different.

[0088] There are multiple ways to connect the first beam 110 and the second beam 120. For example, the first beam 110 and the second beam 120 can be connected by fasteners such as bolts and nuts, or by adhesive bonding. They can also be further connected by adhesive bonding on the basis of being connected by fasteners such as bolts and nuts.

[0089] In the above scheme, the first beam 110 and the second beam 120 arranged along the width direction of the chassis 1 are connected to form the receiving cavity S1, which can reduce the molding difficulty of the longitudinal beam 100 and improve the production efficiency of the longitudinal beam 100.

[0090] In some embodiments, at least one of the first beam 110 and the second beam 120 is bonded to the connecting portion 220.

[0091] Specifically, adhesive material can be applied to the side surface of the first beam 110 and the second beam 120 facing the receiving cavity S1, or adhesive material can be applied to the peripheral side wall of the connecting part 220. When the connecting part 220 is located in the receiving cavity S1, the connecting part 220 can be bonded to at least one of the first beam 110 and the second beam 120 by the adhesive material.

[0092] It can be understood that at least one of the first beam 110 and the second beam 120 being bonded to the connecting portion 220 can mean that the first beam 110 is bonded to the connecting portion 220 while the second beam 120 is separated from the connecting portion 220 or connected in other ways; it can also mean that the second beam 120 is bonded to the connecting portion 220 while the first beam 110 is separated from the connecting portion 220 or connected in other ways; or it can mean that both the first beam 110 and the second beam 120 are bonded to the connecting portion 220 simultaneously. Based on the bonding of at least one of the first beam 110 and the second beam 120 to the connecting portion 220, at least one of the first beam 110 and the second beam 120 can be further connected to the connecting portion 220 in other ways.

[0093] In the above scheme, at least one of the first beam 110 and the second beam 120 is bonded to the connecting part 220, which can reduce the connection difficulty and improve the assembly efficiency.

[0094] Please see Figure 6 In some embodiments, the first beam 110 includes a second top plate 111 and a second side plate 112 connected to the second top plate 111, and the second beam 120 includes a second bottom plate 121 and a third side plate 122 connected to the second bottom plate 121. The second top plate 111 and the second bottom plate 121 are arranged relatively spaced apart along the height direction of the chassis 1, and the second side plate 112 and the third side plate 122 are arranged relatively spaced apart along the width direction. The second top plate 111, the second bottom plate 121, the second side plate 112 and the third side plate 122 enclose a receiving cavity S1.

[0095] Specifically, the first beam 110 includes a second top plate 111 and a second side plate 112. The second top plate 111 and the second side plate 112 can be smooth flat plate structures or other irregular plate structures. The second beam 120 includes a second bottom plate 121 and a third side plate 122. The second bottom plate 121 and the third side plate 122 can be smooth flat plate structures or other irregular plate structures.

[0096] In the height direction of chassis 1, the second top plate 111 and the second bottom plate 121 are arranged opposite to each other and spaced apart. The second side plate 112 can be connected to the side of the second top plate 111 near the second bottom plate 121, and the third side plate 122 is connected to the side of the second bottom plate 121 near the second top plate 111. The second side plate 112 and the third side plate 122 are arranged opposite to each other and spaced apart along the width direction of chassis 1. The second top plate 111 can be connected to the third side plate 122, and the second bottom plate 121 can be connected to the second side plate 112. At this time, the second top plate 111, the second side plate 112, the second bottom plate 121, and the third side plate 122 are equivalent to being connected end to end to form a receiving cavity S1. It is understandable that there are multiple ways to connect the second top plate 111 and the second side plate 112, as well as the second bottom plate 121 and the third side plate 122. For example, they can be connected by welding, or the second top plate 111 and the second side plate 112 can be integrally formed, and the second bottom plate 121 and the third side plate 122 can also be integrally formed. There are multiple ways to connect the second top plate 111 to the third side plate 122, and the second bottom plate 121 to the second side plate 112. The second top plate 111 can be directly connected to the third side plate 122, or it can be connected to the third side plate 122 using a flange or other structure. Similarly, the second bottom plate 121 can be directly connected to the second side plate 112, or it can be connected to the second side plate 112 using a flange or other structure.

[0097] During the assembly process of the connection 220 between the longitudinal beam 100 and the torsion box 200, the first beam 110, the second beam 120 and the connection 220 can be positioned first, such that the first beam 110 and the second beam 120 are located on both sides of the connection 220 approximately along a diagonal direction inclined relative to the height and width directions. This diagonal can be the line connecting the connection part of the second top plate 111 and the second side plate 112 with the connection part of the second bottom plate 121 and the third side plate 122. Then, the first beam 110 and the second beam 120 are moved approximately along the aforementioned diagonal direction toward the connection 220 until the first beam 110 and the second beam 120 cover the outer periphery of the connection 220 and are connected, thus realizing the assembly of the longitudinal beam 100 and the connection 220.

[0098] Compared to the assembly method of first forming a receiving cavity S1 by the first beam 110 and the second beam 120, and then inserting the connecting part 220 into the receiving cavity S1, the above assembly method can reduce the relative movement of the connecting part 220 after contact with the first beam 110 and the second beam 120. Therefore, it can reduce the relative friction between the first beam 110 and the second beam 120 and the outer wall of the connecting part 220 during the assembly process, and reduce the friction loss generated during the assembly process.

[0099] Furthermore, when at least one of the first beam 110 and the second beam 120 is bonded to the connecting portion 220, the above assembly method can also reduce the risk of the adhesive between at least one of the first beam 110 and the second beam 120 and the connecting portion 220 being rubbed off during the assembly process, thereby improving the reliability of the bonding.

[0100] For example, when at least one of the first beam 110 and the second beam 120 is bonded to the connecting portion 220, adhesive material can be applied to the second top plate 111 and the second side plate 112 of the first beam 110 and the second bottom plate 121 and the third side plate 122 of the second beam 120, respectively. The first beam 110 and the second beam 120 are moved approximately diagonally toward the connecting portion 220 until the second top plate 111, the second side plate 112, the second bottom plate 121, and the third side plate 122 are respectively attached to and bonded to the outer wall of the connecting portion 220. This can improve the bonding reliability of the first beam 110, the second beam 120 and the connecting portion 220, and reduce the risk of the adhesive material being rubbed off during the movement of the first beam 110 and the second beam 120 relative to the connecting portion 220.

[0101] Please continue reading. Figure 6In some embodiments, the first beam 110 further includes a first flange 113, which is disposed on the side of the second top plate 111 away from the second bottom plate 121 along the height direction, and the first flange 113 is attached to and connected to the third side plate 122; and / or, the second beam 120 further includes a second flange 123, which is disposed on the side of the second bottom plate 121 away from the second top plate 111 along the height direction, and the second flange 123 is attached to and connected to the second side plate 112.

[0102] The first flange 113 is a component used to enhance the connection reliability of the first beam 110 and the second beam 120. The first flange 113 is connected to the side of the second top plate 111 away from the second bottom plate 121 along the height direction. The first flange 113 can be located on the side of the second top plate 111 close to the third side plate 122 along the width direction. The first flange 113 can be attached to and connected with the third side plate 122 of the second beam 120, thereby increasing the connection area of ​​the first beam 110 and the second beam 120 and improving the connection reliability between them.

[0103] There are several ways to connect the first flange 113 to the second top plate 111. For example, the first flange 113 and the second top plate 111 can be integrally formed, or the first flange 113 and the second top plate 111 can be connected by welding. There are also several ways to connect the first flange 113 to the third side plate 122. For example, the first flange 113 and the third side plate 122 can be connected by bonding, welding, etc.

[0104] The second flange 123 is a component used to enhance the connection reliability of the first beam 110 and the second beam 120. The second flange 123 is connected to the side of the second base plate 121 away from the second top plate 111 in the height direction. The second flange 123 can be located on the side of the second base plate 121 close to the second side plate 112 in the width direction. The second flange 123 can be attached to and connected with the second side plate 112 of the first beam 110, thereby increasing the connection area of ​​the first beam 110 and the second beam 120 and improving the connection reliability between them.

[0105] There are several ways to connect the second flange 123 to the second base plate 121. For example, the second flange 123 and the second base plate 121 can be an integrally formed structure, or the second flange 123 and the second base plate 121 can be connected by welding. There are also several ways to connect the second flange 123 to the second side plate 112. For example, the second flange 123 and the second side plate 112 can be connected by bonding, welding, or other methods.

[0106] In some embodiments, the longitudinal beam 100 is formed with at least one clearance portion located on the outer surface of the longitudinal beam 100 facing away from the receiving cavity S1.

[0107] The clearance portion is a component on the longitudinal beam 100 used to clear other structures around the longitudinal beam 100. The clearance portion can be formed by recessing the outer surface of the longitudinal beam 100 inwards. Correspondingly, a protrusion protruding into the receiving cavity S1 can be formed on the inner surface of the longitudinal beam 100 facing the receiving cavity S1. The position and shape of the protrusion correspond to the clearance portion. The shape of the clearance portion can be various, such as a groove or a step, and the shape of the clearance portion can be adapted to the shape of the structure around the longitudinal beam 100 that is being cleared. There can be one or more clearance portions. When there are multiple clearance portions, the positions of the multiple clearance portions can be flexibly arranged according to the layout of the various structures on the forward compartment assembly 10.

[0108] In the above scheme, by forming a clearance section on the longitudinal beam 100 to avoid other structures in the front compartment assembly 10, the space utilization of the front compartment assembly 10 can be improved, while reducing the risk of interference between the longitudinal beam 100 and other structures in the front compartment assembly 10.

[0109] In some optional embodiments, the longitudinal beam 100 can be formed by stamping steel, which can reduce the forming difficulty of the clearance portion, the receiving cavity S1 and the opening on the longitudinal beam 100 and improve production efficiency. When the longitudinal beam 100 includes a first beam body 110 and a second beam body 120, a stamping process can be used to stamp the first beam plate and the second beam plate respectively to form the first beam body 110 and the second beam body 120 with a preset shape.

[0110] Please see Figure 7 In some embodiments, the box body 210 includes a third top plate 211, a third bottom plate 212 and a plurality of second reinforcing ribs 213. The third top plate 211 and the third bottom plate 212 are arranged opposite each other along the height direction of the chassis 1, and the plurality of second reinforcing ribs 213 are disposed between the third top plate 211 and the third bottom plate 212.

[0111] The third top plate 211 and the third bottom plate 212 are two plate structures arranged opposite each other in the height direction of the chassis 1. The shape of the third top plate 211 and the third bottom plate 212 can be various. For example, the third top plate 211 and the third bottom plate 212 can be regular flat plate structures, curved plate structures, or plate structures formed by splicing multiple flat or curved plates.

[0112] The second reinforcing rib 213 is a component used to enhance the structural strength of the box body 210. Multiple second reinforcing ribs 213 are disposed between the third top plate 211 and the third bottom plate 212 to connect them into a single structure. The shape of the second reinforcing rib 213 can be various; for example, it can be a straight sheet metal structure or an arc-shaped sheet metal structure. Some of the multiple second reinforcing ribs 213 can extend approximately along the length of the chassis 1, while others can extend approximately along the height of the chassis 1. There are various specific layout methods for the multiple second reinforcing ribs 213; in actual use, the second reinforcing ribs 213 can be flexibly arranged between the third top plate 211 and the third bottom plate 212 according to the actual situation of the chassis 1.

[0113] In the above scheme, the box body 210 includes a third top plate 211, a third bottom plate 212 and a plurality of second reinforcing ribs 213. The third top plate 211 and the third bottom plate 212 are arranged opposite each other along the height direction of the chassis 1. The plurality of second reinforcing ribs 213 are arranged between the third top plate 211 and the third bottom plate 212, which can improve the structural strength of the box body 210, that is, improve the torque box 200's torque bearing capacity.

[0114] In some embodiments, in a plane perpendicular to the height direction, the projection of the second reinforcing rib 213 along the height direction lies within the projection of the third top plate 211 or the third bottom plate 212 along the height direction.

[0115] In a plane perpendicular to the height direction, the projection of the second reinforcing rib 213 along the height direction can be located within the projection of the third top plate 211 along the height direction, or within the projection of the third bottom plate 212 along the height direction. Of course, it can also be located within the projections of both the third top plate 211 and the third bottom plate 212 along the height direction.

[0116] In the above scheme, by setting the projection of the second reinforcing rib 213 along the height direction to be located within the projection of the third top plate 211 or the third bottom plate 212 along the height direction, the second reinforcing rib 213 is confined to the coverage area of ​​the third top plate 211 and the third bottom plate 212, which can reduce the risk of the second reinforcing rib 213 protruding outward and interfering with other surrounding structures, and improve the utilization rate of the space around the torsion box 200.

[0117] Please see Figure 8 This application provides a chassis 1, including a front cabin assembly 10, a rear cabin assembly 20, and an energy cabin assembly 30. The front cabin assembly 10 and the rear cabin assembly 20 are respectively connected to the two ends of the energy cabin assembly 30, and the torque box 200 of the front cabin assembly 10 is connected to the energy cabin assembly 30.

[0118] The chassis 1 provided in this application embodiment has the technical effects of the front compartment assembly 10 in any of the above embodiments. The explanations of the same or corresponding structures and terms as in the above embodiments will not be repeated here.

[0119] In this embodiment, the torque box 200 of the front compartment assembly 10 is also connected to the energy compartment assembly 30, which helps to improve the connection reliability between the front compartment assembly 10 and the energy compartment assembly 30, thereby improving the overall stability of the chassis 1. Furthermore, connecting the torque box 200 to the energy compartment assembly 30 can also optimize the force transmission path between the front compartment assembly 10 and the energy compartment assembly 30, thereby improving the collision reliability of the chassis 1.

[0120] In some embodiments, the front cabin assembly 10 is detachably connected to the energy cabin assembly 30; and / or, the rear cabin assembly 20 is detachably connected to the energy cabin assembly 30.

[0121] There are various ways to detachably connect the front cabin assembly 10 and the energy cabin assembly 30. For example, the front cabin assembly 10 and the energy cabin assembly 30 can be connected using at least one of the following: bolts, nuts, studs, screws, pins, and clips. Similarly, there are various ways to detachably connect the rear cabin assembly 20 and the energy cabin assembly 30. For example, the rear cabin assembly 20 and the energy cabin assembly 30 can be connected using at least one of the following: bolts, nuts, studs, screws, pins, and clips.

[0122] In the above scheme, the front cabin assembly 10 and the energy cabin assembly 30 are detachably connected, which allows for the separation, decoupling, and connection of the two assemblies. This enables independent development of the front cabin assembly 10 and the energy cabin assembly 30, allowing them to be replaced as needed, shortening the development cycle and reducing costs. And / or, the rear cabin assembly 20 and the energy cabin assembly 30 are detachably connected, which also allows for the separation, decoupling, and connection of the rear cabin assembly 20 and the energy cabin assembly 30. This enables independent development of the rear cabin assembly 20 and the energy cabin assembly 30, allowing them to be replaced as needed, shortening the development cycle and reducing costs.

[0123] Please continue reading. Figure 8 In some embodiments, the energy compartment assembly 30 includes a frame 31 and battery cells 32, with the front compartment assembly 10 and the rear compartment assembly 20 respectively connected to the two ends of the frame 31, and the battery cells 32 disposed on the frame 31.

[0124] In the above scheme, the battery cell 32 is mounted on the frame 31 to form the energy compartment assembly 30. The frame 31 provides physical protection for the battery cell 32, improving its stability and reliability. Furthermore, the front compartment assembly 10 and the rear compartment assembly 20 are connected to both ends of the frame 31. The front compartment assembly 10 and the rear compartment assembly 20 also provide a certain degree of buffer protection for the battery cell 32 mounted on the frame 31. In the event of a collision, the front compartment assembly 10 or the rear compartment assembly 20 can absorb the impact force first, reducing the collision stress directly transmitted to the battery cell 32.

[0125] In some embodiments, the frame 31 includes a sill beam 311, to which the torsion box 200 is connected.

[0126] In the above scheme, the torsion box 200 is connected to the sill beam 311 of the energy compartment assembly 30, which can improve the connection reliability between the torsion box 200 and the energy compartment assembly 30 and improve the stability of the chassis 1. Furthermore, the connection of the torsion box 200 to the sill beam 311 can further optimize the force transmission path between the front compartment assembly 10 and the energy compartment assembly 30, thereby improving the collision reliability of the chassis 1.

[0127] like Figure 9 As shown, this application embodiment provides a vehicle 1000, which includes a chassis 1 and an upper body 2, with the upper body 2 connected to the chassis 1.

[0128] This application does not limit the connection method between the upper body 2 and the chassis 1. For example, the two can be connected by welding or by a detachable connection method.

[0129] In some embodiments, the upper body 2 and the chassis 1 are detachably connected.

[0130] For example, the upper body 2 and the chassis 1 are detachably connected by a connector. This application does not limit the type of connector; in some examples, the connector may include at least one of bolts, nuts, studs, screws, and pins. In other examples, the connector may also include a snap-fit.

[0131] In this embodiment, the upper body 2 and the chassis 1 are detachably connected, which can realize the separation, decoupling and connection of the upper body 2 and the chassis 1, thereby enabling the independent development of the upper body 2 and the chassis 1. The upper body 2 and the chassis 1 can be replaced as needed, shortening the R&D cycle and reducing costs.

[0132] According to some embodiments of this application, the front compartment assembly 10 of the chassis 1 includes a longitudinal beam 100 and a torsion box 200. The longitudinal beam 100 has a receiving cavity S1. The torsion box 200 includes a box body 210 and a connecting portion 220. The box body 210 is located on one side of the longitudinal beam 100 along the extending direction of the longitudinal beam 100. The connecting portion 220 is disposed on the side of the box body 210 near the longitudinal beam 100. The connecting portion 220 is located in the receiving cavity S1 and connected to the longitudinal beam 100. The connecting portion 220 includes a connecting body 221 and a plurality of first reinforcing ribs 222. The connecting body 221 is connected to the longitudinal beam 100, and the plurality of first reinforcing ribs 222 are disposed on the connecting body 221. The connecting body 221 includes a first top plate 2211, a first bottom plate 2212, and a connecting plate 2213. The first top plate 2211 and the first bottom plate 2212 are arranged opposite each other along the height direction of the chassis 1. The connecting plate 2213 is connected between the first top plate 2211 and the first bottom plate 2212. A plurality of first reinforcing ribs 222 are provided on the connecting plate 2213. The connecting plate 2213 has fastening holes S2 extending along the width direction of the chassis 1. The longitudinal beam 100 has through holes extending along the width direction. The connecting plate 2213 and the longitudinal beam 100 are connected through the fastening holes S2, the through holes, and the fasteners. The longitudinal beam 100 includes a first beam 110 and a second beam 120 arranged along the width direction of the chassis 1. The first beam 110 and the second beam 120 are connected and define a receiving cavity S1. At least one of the first beam 110 and the second beam 120 is bonded to the connecting part 220. The first beam 110 includes a second top plate 111 and a second side plate 112 connected to the second top plate 111. The second beam 120 includes a second bottom plate 121 and a third side plate 122 connected to the second bottom plate 121. The second top plate 111 and the second bottom plate 121 are arranged relatively apart along the height direction of the chassis 1. The second side plate 112 and the third side plate 122 are arranged relatively apart along the width direction. The second top plate 111, the second bottom plate 121, the second side plate 112 and the third side plate 122 enclose and form a receiving cavity S1.

[0133] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A front bay assembly of a chassis, characterized by, The application relates to a longitudinal beam and a torsion box. The longitudinal beam has a receiving cavity. The torsion box comprises a box body and a connecting part, the box body is located on one side of the longitudinal beam along the extension direction of the longitudinal beam, the connecting part is arranged on the side of the box body close to the longitudinal beam, the connecting part is located in the receiving cavity and is connected with the longitudinal beam.

2. The front bay assembly of claim 1, wherein, The connecting part comprises a connecting body and a plurality of first reinforcing ribs, the connecting body is connected with the longitudinal beam, and the plurality of first reinforcing ribs are arranged on the connecting body.

3. The nose compartment assembly of claim 2, wherein, The connecting body comprises a first top plate, a first bottom plate and a connecting plate, the first top plate and the first bottom plate are oppositely arranged along the height direction of the chassis, the connecting plate is connected between the first top plate and the first bottom plate, and the plurality of first reinforcing ribs are arranged on the connecting plate. The connecting plate is provided with a fastening hole extending along the width direction of the chassis, the longitudinal beam is provided with a through hole extending along the width direction, and the connecting plate and the longitudinal beam are connected through cooperation of the fastening hole, the through hole and a fastener.

4. The nose compartment assembly of claim 3, wherein, In the width direction, the fastening hole penetrates through the connecting plate, and the through hole and the fastening hole are respectively used for passing through the fastener; or In the width direction, the connecting plate is provided with the fastening hole on both sides, the fastening hole on one side of the connecting plate is arranged in a spaced mode from the surface on the other side of the connecting plate, and the fastening hole is used for accommodating a part of the fastener and is threadedly connected with the fastener.

5. The nose cone assembly of any of claims 1-4, wherein, The longitudinal beam comprises a first beam body and a second beam body arranged along the width direction of the chassis, the first beam body is connected with the second beam body and defines the receiving cavity.

6. The nose cone assembly of claim 5, wherein, At least one of the first beam body and the second beam body is adhesively connected with the connecting part.

7. The nose compartment assembly of claim 5 or 6, wherein, The first beam body comprises a second top plate and a second side plate connected with the second top plate, the second beam body comprises a second bottom plate and a third side plate connected with the second bottom plate, The second top plate and the second bottom plate are oppositely and spacedly arranged along the height direction of the chassis, the second side plate and the third side plate are oppositely and spacedly arranged along the width direction, and the second top plate, the second bottom plate, the second side plate and the third side plate enclose the receiving cavity.

8. The front bay assembly of claim 7, wherein, The first beam body further comprises a first flange arranged on the side of the second top plate away from the second bottom plate along the height direction, the first flange is in close contact with the third side plate and is connected with the third side plate; and / or The second beam body further comprises a second flange arranged on the side of the second bottom plate away from the second top plate along the height direction, the second flange is in close contact with the second side plate and is connected with the second side plate.

9. The nose cone assembly of any of claims 1-8, wherein, The longitudinal beam is formed with at least one avoiding part located on the outer surface of the longitudinal beam away from the receiving cavity.

10. The front bay assembly of any of claims 1-9, wherein, The box body comprises a third top plate, a third bottom plate and a plurality of second reinforcing ribs, the third top plate and the third bottom plate are oppositely arranged along the height direction of the chassis, and the plurality of second reinforcing ribs are arranged between the third top plate and the third bottom plate.

11. The front bay assembly of claim 10, wherein, In a plane perpendicular to the height direction, a projection of the second reinforcing rib along the height direction is located within a projection of the third top plate or the third bottom plate along the height direction.

12. A pan characterized by, Comprise: a front cabin assembly; a rear cabin assembly; and an energy cabin assembly, the front cabin assembly and the rear cabin assembly are respectively connected to two ends of the energy cabin assembly, and a torsion box of the front cabin assembly is connected to the energy cabin assembly.

13. The base pan of claim 12, wherein, The front cabin assembly is detachably connected with the energy cabin assembly; and / or, The rear cabin assembly is detachably connected with the energy cabin assembly.

14. A chassis according to claim 12 or 13, characterised in that, The energy cabin assembly comprises a frame and a battery cell, the front cabin assembly and the rear cabin assembly are respectively connected to two ends of the frame, and the battery cell is arranged in the frame.

15. The base pan of claim 14, wherein, The frame comprises a rocker beam, and the torsion box is connected to the rocker beam.

16. A vehicle characterized by comprising: Comprise: a chassis; an upper vehicle body connected to the chassis.

17. The vehicle of claim 16, wherein, The upper vehicle body is detachably connected with the chassis.

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